Title of Invention	A DISPLAY MESSAGE MEANS AND METHOD ADAPTABLE IN A MOBILE CELLULAR TELECOMMUNICATIONS NETWORK FOR DISPLAYING A DISPLAY MESSAGE ON A PERSONAL CELLULAR TELECOMMUNICATION DEVICE
Abstract	The present invention is directed to the use of concatenatable Point-To-MultiPoint (PTMP) broadcast messages for displaying display messages, and in particular long display messages requiring two or more PTMP broadcast messages, on personal cellular telecommunications devices. The present invention is achieved by the provision of a pseudo-header including a display message identifier, a PTMP broadcast message field for specifying the number P≥1 of PTMP broadcast messages to transport an entire display message, and a PTMP broadcast message counter Q=(1, 2, ......., P-1, P) for specifying the location of a PTMP broadcast message in that sequence. A pseudo-header may alternatively enable concatenation of two or more macromessages into a supermacromessage.

Title of Invention

A DISPLAY MESSAGE MEANS AND METHOD ADAPTABLE IN A MOBILE CELLULAR TELECOMMUNICATIONS NETWORK FOR DISPLAYING A DISPLAY MESSAGE ON A PERSONAL CELLULAR TELECOMMUNICATION DEVICE

Abstract

The present invention is directed to the use of concatenatable Point-To-MultiPoint (PTMP) broadcast messages for displaying display messages, and in particular long display messages requiring two or more PTMP broadcast messages, on personal cellular telecommunications devices. The present invention is achieved by the provision of a pseudo-header including a display message identifier, a PTMP broadcast message field for specifying the number P≥1 of PTMP broadcast messages to transport an entire display message, and a PTMP broadcast message counter Q=(1, 2, ......., P-1, P) for specifying the location of a PTMP broadcast message in that sequence. A pseudo-header may alternatively enable concatenation of two or more macromessages into a supermacromessage.

Full Text	Field of the Invention The invention is in the field of mobile cellular telecommunications in general, and the use of concatenatable Point-To-MultiPoint (PTMP) broadcast messages for displaying display messages on personal cellular telecommunications devices in particular. Background of the Invention In Applicant's WO 01/32558 A2 entitled "Method for Operating a Cellular Telecommunications Network, and Method for Operating a Personal Cellular Telecommunications Device" and WO 01/52572 Al entitled "Method far Operating a Cellular Telecommunications Network", the contents of which are incorponted herein by reference, mere is illustrated and described a screen saver application for displaying display messages on personal cellular telecommunications devices in a screen saver like manner, namely, their display is temporarily interrupted during, say, a voice call, an Internet session, and the like. The display messages are preferably so-called "interactive display messages" in the sense mat a subscriber can automatically activate a Point-To- Point (PTP) transmission response mechanism from a dedicated response means integrally provided in a display message. Interactive display messages are preferably transmitted over a Point-To-MultiPoint (PTMP) transmission capability as opposed to over a PTP transmission capability, thereby rendering an interactive cellular broadcasting service. ETSI's GSM 03 Al standard entitled "Technical Realization of Cellular Broadcast Service", the contents of which are incorporated herein by reference, standardizes a so-called "macromessage" constituted by between one and 15 broadcast messages each having a 82 byte payload for transporting long display messages of up to a maximum of 1230 bytes. This upper limit of 15 broadcast messages is due to the provisioning of only 4 bits for the purpose of specifying the number of pages in a macromessage i.e. 1111. Despite the inclusion of the macromessage feature since the inception of the GSM 03.41 standard, neither do many installed OSM Cell Broadcast Controllers (CBCs) employed for parsing an display message into broadcast messages support the macromessage feature, nor do many Base Station Controllers (BSCs) for transmitting the broadcast messages and nor do many OSM personal cellular telecommunications devices. Looking to the future, assuming that all installed CBCs, BSCs and devices support the macromessage capability, the maximum 1230 byte payload of a macromessage may be insufficient to transport certain bandwidth heavy display messages, for example, including video content. Summary of the Invention Generally speaking, the present invention is directed to the use of concatenatable Point-To-MultiPoint (PTMP) broadcast messages for displaying display messages on personal cellular telecommunications devices in a robust manner entirely independent of the macromessage capability of a transmitting BSC or the individual macromessage capability of a receiving personal cellular telecommunications device. Moreover, the present invention is capable of concatenating a far greater number of PTMP broadcast messages than the maximum concatenation capability of GSM 03.41's macromessage feature, thereby effectively enabling the CB channels dedicated for broadcast messages to be employed for transporting mobile services, for example, WAP, and the like The present invention is implemented by reserving a portion of the payload of an otherwise conventional PTMP broadcast message for concatenation purposes including concatenation of two or more PTMP broadcast messages and/or concatenation of two or more macromessages into a so-called supermacromessage. The reserved portions of the payloads of PTMP broadcast messages are therefore effectively pseudo-headers whose contents do not constitute part of the display message per se. However, whilst the pseudo- headers of PTMP broadcast messages in accordance with the present invention effectively replace the functionality of their header counterparts when used, there still exist network advantages for transmitting PTMP broadcast messages as part of macromessages where possible. A client application for displaying display messages transported over an air interface in accordance with the present invention is preferably customizable for execution on either a non-macromessage compliant device or a macromessage compliant device. The customization is preferably achieved by way of a customization protocol, for example, as illustrated and described Applicant's co- pending PCT International Applications PCT/IL01/00165 and PCT/IL01/00424. the contents of which are incorporated herein by reference. The personal cellular telecommunications devices can include a wide range of mobile handheld devices including inter alia simple phones, Smartphoncs, Communicators, Wireless Information Devices (WIDs), and the like. The client applications can be developed under different industry wide and proprietary development environments, and can run on different Operating Systems (O/Ss) including inter alia Microsoft CE, Symbian EPOC, Palm O/S, and the like. Brief Description of the Drawings In order to understand the invention and to see how it can be carried out in practice, a preferred embodiment will now be described, by way of a non- limiting example only, with reference to the accompanying drawings, in which similar parts are likewise numbered, and in which: Fig. 1 shows a schematic representation of a GSM mobile cellular telecommunications network for displaying display messages on personal cellular telecommunications devices, Fig. 2 is a schematic diagram showing a preferred embodiment of a GSM- type modified PTMP broadcast message for displaying display messages in accordance with the present invention; Fig. 3 is a flow diagram showing the parsing of a display message into PTMP broadcast messages ready for broadcasting in accordance with the present invention; Fig. 4 is a schematic diagram showing the parsing of a display message into a sequence of GSM-type individual PTMP broadcast messages in accordance with a first mode of parsing; Fig. 5 is a schematic diagram showing the parsing of a display message into a GSM-type macromessage of PTMP broadcast messages in accordance with a second mode of parsing; Fig. 6 is a schematic diagram showing the parsing of a display message into a supermacromessage of GSM-type macromessages in accordance with a third mode of parsing; Fig. 7 is a flow diagram of a client application for displaying a display message on a non-macromessage compliant personal cellular telecommunications device in accordance with the present invention; Fig. 8 is a flow diagram of a client application for displaying, a display message on a macromessage compltant personal cellular telecommunications device in accordance with the present invention; Fig. 9 is a schematic diagram showing an intermediate message yielded during the operation of the personal cellular telecommunications device of Figure 8 for displaying of a display message; Fig. 10 is a schematic diagram showing a preferred embodiment of a GSM-type modified PTKlP broadcast message of the first PTMP broadcast message of a macromessage for concatenating macromessages into supennacromessages in accordance with the present invention; Fig. 11 is a flow diagram showing the parsing of a display message into macromessages of a supermacromessage ready for broadcasting in accordance with the present invention; Fig. 12 is a flow diagram of a client application for displaying a display message on a macromessage compliant personal cellular telecommunications device in accordance with the present invention; and Figs. 13A and 13B are schematic diagrams showing alternative embodiments of a GSM-type modified PTMP broadcast message for displaying display messages in accordance with the present invention. Detailed Description of the Drawings Figure 1 shows a GSM cellular telecommunications network 1 for displaying display messages on personal cellular telecommunications devices (hereinafter referred to as "devices ") 2. The network 1 includes a Cell Broadcast Controller (CBC) 3 for parsing a display message into PTMP broadcast messages to be broadcasted from one of two classes of Base Station Controller (BSC) 4, namely, non-macromessfge compliant BSCs 4A and macromessage compliant BSCs 4B. Each device 2 includes a host Mobile Equipment (ME) 6, and a resident Subscriber Identity Module (SIM) card 7 capable of running SIM Toolkit applications (constituting client applications). Each bost ME 6 has its own unique vendor allocated 15 digit International Mobile Equipment Identification (IMEI) number 8, for example, 490548400308362. Each SIM 7 has a cellular operator allocated 15 digit International Mobile Subscriber Identity (IMSI) number 9, for example, 425010100437187. A device 2 can be either a non-macromessage compliant device 2A or a macromessage compliant device 2B, and its macromessage compliancy can be determined by way of a customization protocol employing either its IMEI or its IMSI, for example, as illustrated and described in Applicant's co-pending PCT International Applications PCT/IL01/00165 and PCT/IL01/00424, the contents of which are incorporated herein by reference. Figure 2 shows that a modified GSM-type PTMP broadcast message 11 is based on a conventional PTMP broadcast message having 88 bytes divided between a 6 byte header 12 and a 82 byte payload 13. The header 12 includes a macromessage identifier 14 for identifying a macromessage, a macromessage page field 16 for specifying an integer I of pages in a macromessage where K≥I≥1 and K is a predetermined maximum number of PTMP broadcast messages in a macromessage (K=15 for a GSM-type macromessage), and a macromessage page counter 17 for specifying a page number J=(1, 2, ..., 1-1, I≤15) of a PTMP broadcast message in a macromessage. The value J is incremented by 1 for each consecutive PTMP broadcast message in a macromessage. The payload 13 includes a reserved pseudo-header 18, and a payload remainder 19 for storing the actual content of an intended display message including inter alia display instructions, text, graphics, and the like. The pseudo-header 18 has a display message identifier 21 for identifying a display message, a PTMP broadcast message field 22 for specifying a value P≥1 of the number of PTMP broadcast messages required to transport an entire display message, and a PTMP broadcast message counter 23 Q-(l, 2 P-l, P) for specifying the location of a PTMP broadcast message in a sequence of P PTMP broadcast messages. The value Q is incremented by 1 for each consecutive PTMP broadcast message in a sequence of P PTMP broadcast messages. The pseudo-header 18 also includes a supermacromessage field 24 for specifying the number of macromessages L≥1 required to transport an entire display message, and a supermacromessage counter 26 M=(1, 2, ..., L-l, L) for specifying the location of a macromessage in a supermacromessage. The value M is incremented by 1 for each consecutive macromessage in a supermacromessage. The operation of the GSM mobile cellular telecommunications network 1 is now described with reference to Figures 3-9 in respect of both non- macromessage compliant devices 2A and macromessage compliant devices 2B, and both non-macromessage compliant BSCs 4A and macromessage compliant BSCs 4B. In the case of either a BSC 4A or a BSC 4B, the CBC 3 initially determines the number P≥1 of PTMP broadcast messages required to transport an entire display message 27. In the case of a BSC 4A, the CBC 3 parses the display message 27 into P PTMP broadcast messages 28 including assigning values to its/their display message identifiers) 21, PTMP broadcast message field(s) 22 and PTMP broadcast message counters) 23 prior to transmission at the BSC 4A for display of its/their originating display message 27 on a device 2A or 2B (see solid line in Figure 3, and Figure 4): The CBC 3 assigns the same identification number 123456 to its/their display message identificr(s) 21. The CBC 3 assigns the same value P to its/their PTMP broadcast message field(s) 22. The CBC 3 assigns a value Q=(1, 2, P-1, P) to its/their PTMP broadcast message counter(s) 23 where the value Q is incremented by 1 for each consecutive PTMP broadcast message 28 of the P PTMP broadcast mcssagc(s) 28. Also, the CBC 3 can assign default values, say, L"M=0, to its/their supermacromessage field(s) 24 and its/their supermacromessage counter(s) 26. In the case of a BSC 4B and P≤15, the CBC 3 and the BSC 4B parse the display message 27 into P≤15 PTMP broadcast messages 28 including assigning values to its/their macromessage identifier(s) 14, macromessage page field(s) 16, macroraessage page counter(s) 17, display message identifier(s) 21, PTMP broadcast message field(s) 22 and PTMP broadcast message counter(s) 23 prior to the P≤15 PTMP broadcast messages) 28 being ready for transmitting at the BSC 4B for displaying its/their originating display message 29 on a device 2A or 2B (see hashed line in Figure 3, and Figure 5): The CBC 3 allocates the identification number 171717 for assigning to its/their macromessage identificr(s) 14 by the BSC 4B. The BSC 4B assigns the same value I to its/their macromcssagc page field(s) 16, and a value J to its/their macromessage page counter(s) 17. Typically, the 1 and Q values of its/their macromessage page fieid(s) 13 and macromessage page counters(s) 17 arc the same as the P and Q values of their counterpart PTMP broadcast field(s) 22 and PTMP broadcast counter(s) 23, respectively. The CBC 3 assigns the same identification number 232323 to its/their display message identifier(s) 21. The CBC 3 assigns the same value P to its/their PTMP broadcast message field(s) 22. The CBC 3 assigns a value Q-(1, 2 , P-l, P≤15) to its/their PTMP broadcast message counter(s) 23 where Q is incremented by 1 for each consecutive P≤15 PTMP broadcast message 28 of the P≤15 PTMP broadcast message(s) 28. The CBC 3 can also assign default values, say, L=M=0, to its/their supcrmacromessagc ficld(s) 24 and its/their supcrmacromessagc counters) 26. In the case of a BSC 4B and P>15, a decision has to be made whether to still utilize the BSC's macromessage capability or not. In the event that its macromessage capability is not to be utilized, then the display message is parsed into P>15 PTMP broadcast messages in the same manner as in the case of a BSC 4A prior to transmission at the BSC 4B for displaying their originating display message 27 on a device 2A or 2B. In the event that its macromessage capability is still to be utilized, the CBC 3 determines the length of a supermacromessage in terms of the number L>1 of macromessages required to transport the entire display message 27. The CBC 3 and the BSC 4B parse the display message 27 into the P>15 PTMP broadcast messages including assigning values to their macromessage identifiers 14, macromessage page fields 16, macromessage page counters 17, display message identifiers 21, PTMP broadcast message fields 22, PTMP broadcast message counters 23, supermacromessage fields 24, and supcrmacromessagc counters 26 prior to transmission at the BSC 4B for displaying their originating display message 27 on a device 2A or 2B (see hashed line in Figure 3, and Figure 6): The CBC 3 allocates the identification numbers for the different macromessages for assigning to their macromessage identifiers 14 by the BSC 4B. For example, assuming- that P=25, the display message 27 is transportable by a supermacromessage consisting of two macromessages, the first macromessage being complete with 15 PTMP broadcast messages 28(1), ..., 28(15), and the second macroraessage having 10 PTMP broadcast messages 28(16), ..., 28(25). In the shown example, the CBC 3 allocates the value 454545 to the macromessage identifiers 14 of the 1st macromessage, and the value 474747 to the macromessage identifiers 14 of the 2nd macromessage. The BSC 4B assigns the value 1=15 to the macromessage page field 16 of each PTMP broadcast message of a complete macromessage, and the value I=P- [15x(L-1)] to the macromessage page field 16 of the last typically incomplete macromessage. The BSC 4B assigns a value J=(l, 2, ...., 15) to the macromessage page counters 17 of each PTMP broadcast message of a complete macromessage where the value J is incremented by 1 for each consecutive PTMP broadcast message of a macromessage, and the value J=(1,2,.... P-[15x(L-l)]) to the macromessage page counters 17 of the PTMP broadcast messages of the last typically incomplete macromessage. In the above example, the BSC 4B assigns the value 1=15 to the mscromessage page fields 16 of all IS PTMP broadcast messages 28 of the 1st macromessage, and a J-(l, 2, ..... 15) to their macromessage page counters 17. Also, the BSC 4B assigns the value I=10 to the macromessage page fields 21 of all 10 PTMP broadcast messages 28 of the 2nd macromessage, and a Q-(l, 2 10) to their macromessage page counters 17. The CBC 3 assigns the same identification number 123123 to the display message identifiers 21 of all 25 PTMP broadcast messages. The CBC 3 assigns the same value P to the PTMP broadcast message fields 21 of all 25 PTMP broadcast messages, and values Q-{1, 2, , P-l, P) to their PTMP broadcast message counters 23 where the value Q is incremented by 1 for each consecutive PTMP broadcast message. The CBC 3 also assigns the same value L to the supermacromessage fields 24 of all 25 PTMP broadcast messages, and a value M=(l, 2, ..., L-1, L) to their supermacromessage counters 26 where M is incremented by 1 for each consecutive macromessage in a supermacromessage. In the above example, the CBC 3 assigns the value P=25 to the PTMP broadcast messages fields 22, the values Q=(l, 2, , 21, 25) to their PTMP broadcast message counters 23, the value L=2 to the supermacromessage fields 24 of all 25 PTMP broadcast messages 28, the value M=l to the supermacromessage counters 26 of the 15 PTMP broadcast messages of the 1st macromessage, and the value M=2 to the supermacromessage counters 26 of each of the 10 PTMP broadcast messages of the 2nd macromessage. A non-macromessagc compliant device 2A is, by definition, unable to interpret macromessage information contained in the header of a PTMP broadcast message and therefore as a consequence handles PTMP broadcast messages 11 originating from either a BSC 4A or a BSC 4B in the same manner, namely, it processes the information stored in their pseudo-headers 18. In contrast, a macromessage compliant device 2B handles incoming PTMP broadcast messages originating from a BSC 4A and a BSC 4B differently. Turning to Figure 7, a device 2A receives incoming PTMP broadcast messages 11 which are individually automatically downloaded in their entirety to its SIM 7. The client application determines from its PTMP broadcast message field 22 whether a PTMP broadcast message is part of a single PTMP broadcast message (P=l) display message or a multi-PTMP broadcast message (P>1) display message. In the former case, the client application strips off its header 12 and its pseudo-header 18, and processes its payload remainder 19 for yielding the contents of the display message for display on the device 2A. In the latter case, the client application sorts the P PTMP broadcast messages of a display message into sequence by their PTMP broadcast message counters 23 and then processes their payload remainders 19 for yielding the contents of the display message for display on the device 2A. After a predetermined timeout, the client application discards any incomplete display messages. Turning to Figure 8, in the case of a device 2B receiving incoming PTMP broadcast messages, its ME 6 automatically attempts to process them by macromessage information potentially contained in their headers, namely, to order the PTMP broadcast messages of each macromessage in sequence. In the case of PTMP broadcast messages transmitted by a BSC 4A, since their headers are devoid of macromessage information, the ME 6 cannot process them and therefore they are individually downloaded to the SIM 7 as single PTMP broadcast message intermediate messages. Each such intermediate message is in actual fact identical to its originating PTMP broadcast message in the sense that it has an identical header and an identical payload. In the case of PTMP broadcast messages transmitted by a BSC 4B and therefore containing macromessage information, the ME 6 is able to process them to generate intermediate messages derived from one or more PTMP broadcast messages and up to 15 PTMP broadcast messages for downloading to the SIM 7. In the event that an intermediate message is derived from a single PTMP broadcast message (P=l) display message, its subsequent intermediate message is also identical to its originating PTMP broadcast message in the sense that it has an identical header and an identical payload. In the event that an intermediate message is derived from a multi-PTMP broadcast message display message, each such intermediate message has a header identical to the header of its first PTMP broadcast message, and a payload including the pseudo-header of its first PTMP broadcast message and its payload remainder, and the entire payloads of its remaining P-1 PTMP broadcast messages including their pseudo-headers spaced therealong at regular intervals. Figure 9 shows the intermediate message 29 which would be yielded on receipt of the P≤15 PTMP broadcast messages 28 derived from the display message 27 described hereinabove with reference to Figure 5. After a predetermined timeout, the ME 6 discards any incomplete macromessages. The client application determines whether an intermediate message is derived from a single PTMP broadcast message (Y=l) display message or a multi-PTMP broadcast message (Y>1) display message. In the former case, such an intermediate message can be classified into one of three categories: Class 1 in the event it derives from a single PTMP broadcast message (P=l) display message, transmitted by either a BSC 4A or a BSC 4B. Class 2 in the event it derives from a multi-PTMP broadcast message (P>1) display message transmitted by a BSC 4A. And Class 3 in the event it derives from a single PTMP broadcast message of a last incomplete macromessage of a two or more macromessage (L>1) supermacromessage, for example, the 16th or the 31st PTMP broadcast message of a multi-PTMP broadcast message display message, transmitted by a BSC 4B. In the case that an intermediate message is derived from a single PTMP broadcast message (P=l) display message as determined from its PTMP broadcast message field 22, the client application strips off its header 12 and its pseudo-header 18, and processes its payload remainder 19 for yielding the contents of the display message for display on the device 2B. In the event that such an intermediate message is not derived from a single PTMP broadcast message (P=l) display message, it is necessary to determine from its supermacromessage field 24 whether it falls into cither Class 2 or 3. In the case that such an intermediate message falls into Class 2, it is processed in the same manner as described above with reference to a non-macromessage compliant device 2A, namely, the client application sorts the P PTMP broadcast messages of a multi-PTMP broadcast message (P>1) display message into sequence by their PTMP broadcast message counters 23 and then processes their payload remainders 19 for yielding the contents of the display message for display on the device 2B. In the case that an intermediate message is derived from two or more PTMP broadcast messages indicative of their transmission by a BSC 4B, the client application determines from either the PTMP broadcast message field 22 or the supermacromessage field 24 of the first PTMP broadcast message whether it is derived from a single macromessage (P≤15) display message or a multi- macromessage (P>15) display message. In the former case, the client application strips off the header 12 and the pseudo-headers 18 of the PTMP broadcast messages before processing the payload remainders 19 of all the PTMP broadcast messages of the intermediate message for yielding the content of the display message for display on the device 2B. In the latter case, the client application treats the intermediate message in the same manner as described for the former case that a PTMP broadcast message is derived from a single macromessage (P≤15) display message but it concatenates the two or more macromessages of a supermacromessage including a single FTMP broadcast message (Y=l) macromessage derived from a Class 3 intermediate message as identified by their display message identifiers 21 in sequence prior to displaying the display message on the device 2B. In the case of a display message being transmitted by a macromessage compliant BSC 4B for display on a device 2B, the concatenation of the PTMP broadcast messages of a macromessage is transparent to the device 2B, and therefore support of a supermacromessage capability is in practice equivalent to support of the concatenation of PTMP broadcast messages on a non- macromessage compliant device 2A. To this end, each macromessage requires that only its first PTMP broadcast message 31 (see Figure 10) has the pseudo- header 18 with the display message identifier 21, the supermacromessage field 24 and the supermacromessage counter 26 whilst its other up to 14 PTMP broadcast messages may have full 82 byte payloads. The operation of a GSM mobile telecommunications network 1 having only macromessage compliant devices 2B and macromessage compliant BSCs 4B is now described with reference to Figures 11 and 12. A CBC 3 initially determines the number L≥1 of macromessages required to transport an entire display message 27, and thereafter, the CBC 3 and a BSC 4B parse the display message 27 in the same manner as described hereinabove in connection with Figure 6 without the assigning of values to the display message identifiers 21, the PTMP broadcast message fields 22 and the PTMP broadcast message counters of the 2nd and up to 15th PTMP broadcast message of each macromessage which are absent. On receiving incoming PTMP broadcast messages, the ME 6 of a device 2B automatically processes them by the macromessage information contained in their headers 12 to sort the PTMP broadcast messages of each macromessage. The ME 6 downloads intermediate messages which are derived from cither a single macromessage (L=l) supermacromessage or a multi-macromessage (L>1) supermacromessage. Each intermediate message may contain from a single PTMP broadcast message up to 15 PTMP broadcast messages, and includes the header of the 1st PTMP broadcast message, and its payload including its pseudo- header 18 and its payload remainder 19, and the full payloads of any additional PTMP broadcast messages. In the case that an intermediate message is derived from a single macromessage supermacromessage, the client application strips off the header 12 and the pseudo-header 18 of its first PTMP broadcast message for yielding the content of the display message for display on the device 2B. In the case that an intermediate message is derived from a multi-macromessage supermacromessage, the client application concatenates the two or more macromessages as identified by their display message identifiers 21 in sequence prior to displaying the display message on the device 2B. While the invention has been described with respect to a limited number of embodiments, it will be appreciated that many variations, modifications, and other applications of the invention can be made within the scope of the appended claims. For example, alternative means instead can be provided for enabling a personal cellular telecommunications device to determine the receipt of a complete display message or a complete supermacromessage. Thus, rather than providing each PTMP broadcast message with a PTMP broadcast message field 22, an end of display message symbol (constituting a complete display message indication means) can be employed in which case each PTMP broadcast message 32 for transporting a display message except the last would have the PTMP broadcast message counter 23 (see Figure 13A) whilst the last PTMP broadcast message 33 for transporting a display message would have the PTMP broadcast message counter 23 and an end of display message symbol 34 (see Figure 13B). The same approach may also be applied to supermacromessage information. We Claim 1. A display message means (11) adaptable in a mobile cellular telecommunications network (1) for displaying on a personal cellular telecommunications device (2), the display message means (11) being transportable over an air interface by P≥1 Point-To-Multipoint (PTMP) broadcast messages each comprising a) a header (12) having i) a macromessage identifier (14) for identifying a macromessage; ii) a macromessage page field (16) for specifying a total number of pages I in a macromessage where K ≥ I ≥ 1 and K is a predetermined maximum number of PTMP broadcast messages in a macromessage; and iii) a macromessage page counter (17) for specifying a page number J = (1, 2, I-1, I ≤ K) of a PTMP broadcast message in a macromessage, and b) a payload (13) having a reserved pseudo-header (18) and a payload remainder (19) for storing actual content, the pseudo-header (18) having i) a display message identifier (21) for identifying a display message; and ii) a PTMP broadcast message counter (23) Q = (1, 2, , P-l, P) for specifying the location of a PTMP broadcast message in a sequence of P PTMP broadcast messages. 2. The message means (11) as claimed in claim 1, wherein the pseudo- header comprises a complete display message indicator for enabling a personal cellular telecommunications device (2) to determine the receipt of a complete display message. 3. The message as claimed in claim 2, wherein the complete display message indicator is constituted by a PTMP broadcast message field (22) for storing the value P. 4. The message means as claimed in claim 2, wherein the complete display message indicator is constituted by an end of display message symbol. 5. The message means as claimed in any one of claims 1 to 4, wherein the pseudo-header (18) comprises a supermacromessage counter (26) M = (1, 2, , L-1, L) for specifying the location of a macromessage in a supermacromessage constituted by a sequence of L > 1 macromessages. 6. The message means as claimed in claim 5, wherein the pseudo-header comprises a complete supermacromessage indicator for enabling a personal cellular telecommunications device to determine the receipt of a complete supermacromessage. 7. The message means as claimed in claim 6, wherein the complete supermacromessage indicator is constituted by a supermacromessage field (24) for storing the value L. 8. The message means as claimed in claim 6, wherein the complete supermacromessage indicator is constituted by an end of supermacromessage symbol. 9. A method for broadcasting a display message means for display on a personal cellular telecommunications device, the display message means being transported over an air interface by one or more PTMP broadcast messages of claim 1 comprising at least one PTMP broadcast message having a complete display message indicator as claimed in claim 2, the method comprising the steps of: a) determining the number P ≥ 1 of PTMP broadcast messages for transporting the entire display message; b) parsing the display message into the P PTMP broadcast messages including assigning the same identification number to its/ their display message identifier (s); c) assigning values Q = (1, 2, , P-l, P) to its / their PTMP broadcast message counter(s) where Q is incremented for each PTMP broadcast message in the sequence of P PTMP broadcast messages; d) completing the complete display message indicator of the at least one PTMP broadcast message (s) of claim 2; and e) transmitting the P PTMP broadcast messages for display of its/their originating display message on a personal cellular telecommunications device. 10. The method as claimed in claim 9, comprising the step of assigning the same identification number to its/their macromessage identifier(s) of each macromessage, assigning values I ≤ K to it/their macromessage page field(s), and values J = (1, 2, , 1-1, I macromessage page counter(s). 11. The method as claimed in one of claims 9 or 10 and wherein the P PTMP broadcast messages are of claim 5 having at least one PTMP broadcast message with a complete supermacromessage indicator of claim 6, and comprising the steps of: f) determining the number L of macromesssages for transporting the entire display message; g) assigning values M = (1, 2, , L-1, L) to the supermacromessage counter(s) of its/their P PTMP broadcast message(s) wherein M is incremented for each macromessage in the supermacromessage; and h) completing the complete supermacromessage indication means of the at least one PTMP broadcast message(s) of claim 6. 12. A mobile cellular telecommunications network for executing the method as claimed in any one of claims 9 to 11. 13. A method for displaying a display message means on a personal cellular telecommunications device, the method comprising the steps of: (a) receiving incoming PTMP broadcast messages in accordance with any one of claims 1 to 8; and (b) displaying a display message whose contents are derived solely from the payload remainder(s) of its P ≥ 1 PTMP broadcast message(s) on the personal cellular telecommunications device. 14. The method as claimed in claim 13, comprising the step of determining whether an incoming PTMP broadcast message is part of a single PTMP broadcast message (P = 1) display message. 15. The method as claimed in claim 13 or 14, comprising step ( c) of sorting the PTMP broadcast messages of a multi-PTMP broadcast message (P > 1) display message into sequence for display of the display message on the personal cellular telecommunications device. 16. The method as claimed in claim 15, wherein step (c ) comprises processing at least the PTMP broadcast message counter of the PTMP broadcast messages of a multi-PTMP broadcast message (P > 1) display message. 17. The method as claimed in any one of claims 13 to 16, comprising step (d) of sorting the macromessages of a multi-macromessage supermacromessage into sequence for display of the display message on the personal cellular telecommunications device. 18. The method as claimed in claim 17, wherein step (d) comprises processing at least the supermacromessage counter of the PTMP broadcast messages of a multi-PTMP broadcast message (P > 1) display message. 19. The method as claimed in any one of claims 13 to 18, comprising step (e) of determining whether the personal cellular telecommunications device is macromessage complaint. 20. A client application for executing the method as claimed in any one of claims 13 to 19. 21. A smart card for executing the method as claimed in any of claims 13 to 19. 22. A personal cellular telecommunications device for executing the method as claimed in any one of claims 13 to 19. 23. A display message means for displaying on a macromessage compliant personal cellular telecommunications device, the device being adaptable in a mobile cellular telecommunications network, the display message being transportable over an air interface by one or more macromessages each containing up to K Point-To-MultiPoint (PTMP) broadcast messages where K is a predetermined maximum number of PTMP broadcast messages in a macromessage, the macromessage having at least one PTMP broadcast message comprising a) a header comprising i) a macromessage identifier for identifying a macromessage; ii) a macromessage page field for specifying a total number of pages 1 in a macromessage where K≥I≥1; and iii) a macromessage page counter for specifying a page number J=(l, 2, , 1-1, I≤K) of a PTMP broadcast message in a macromessage, and b) a payload including a reserved pseudo-header and a payload remainder for storing actual content, the pseudo-header having i) a display message identifier for identifying a display message; and ii) a supermacromessage counter for specifying a macromessage number M=(l, 2, , L-l, L) in a sequence of L≥1 macromessages constituting a supermacromessage. 24. The message means as claimed in claim 23, wherein the pseudo-header comprises a complete supermacromessage indication means for enabling the personal cellular telecommunications device to determine the receipt of a complete supermacromessage. 25. The message means as claimed in claim 24, wherein the complete supermacromessage indication means is constituted by a supermacromessage field for storing the value L. 26. The message means as claimed in claim 24, wherein the complete supermacromessage indication means is constituted by an end of supermacromessage symbol. 27. A method for broadcasting a display message for display on a personal cellular telecommunications device, the display message being transported over an air interface by one or more macromessages as claimed in claim 23 having at least one macromessage as claimed in claim 24, the method comprising the steps of: a) determining the number L≥1 of macromessages for transporting the entire display message; b) parsing the display message into the L macromessage (s) including assigning the same identification number to the display message identifier (s) of its/their PTMP broadcast message(s). c) assigning values M=(1, 2, , L-1, L) to the supermacromessage counter(s) of its/their PTMP broadcast messages where M is incremented for each macromessage in the sequence of L macromessage(s); d) assigning the same identification number to the macromessage identifier(s) of its/their PTMP broadcast message(s); e) assigning values I≤K to the macromessage page field(s) of its/their PTMP broadcast message(s); f) assigning values 3=(1, 2, , 1-1, I≤K) to the macromessage page counter(s) of its/their PTMP broadcast message(s); g) completing the complete supermacromessage indication means of the at least one PTMP broadcast message(s) in accordance with claim 24; and h) transmitting the PTMP broadcast message(s) of the L≥1 macromessage(s) for display of its/their originating display message on a personal cellular telecommunications device. 28. A mobile cellular telecommunications network for executing the method as claimed in claim 27. 29. A method for displaying a display message on a personal cellular telecommunications device, the method comprising the steps of: a) receiving incoming PTMP broadcast messages as claimed in any one of claims 23 to 26; and b) displaying a display message whose contents are derived solely from the payload remainders of the PTMP broadcast messages of its L≥1 macromessages on the personal cellular telecommunications device. 30. The method as claimed in claim 29, comprising step c) of sorting the macromessages of a multi-macromessage supermacromessage into sequence for display of the display message on the personal cellular telecommunications device. 31. The method as claimed in claim 30, wherein step c) comprises processing at least the supermacromessage counter of a macromessage of a multi- macromessage (L>1) supermacromessage display message. 32. A client application for executing the method as claimed in any one of claims 29 to 31. 33. A smart card for executing the method as claimed in any one of claims 29 to 31. 34. A personal cellular telecommunications device for executing the method as claimed in any one of claims 29 to 31. The present invention is directed to the use of concatenatable Point-To-MultiPoint (PTMP) broadcast messages for displaying display messages, and in particular long display messages requiring two or more PTMP broadcast messages, on personal cellular telecommunications devices. The present invention is achieved by the provision of a pseudo-header including a display message identifier, a PTMP broadcast message field for specifying the number P≥1 of PTMP broadcast messages to transport an entire display message, and a PTMP broadcast message counter Q=(1, 2, ......., P-1, P) for specifying the location of a PTMP broadcast message in that sequence. A pseudo-header may alternatively enable concatenation of two or more macromessages into a supermacromessage.

Full Text

Field of the Invention
The invention is in the field of mobile cellular telecommunications in
general, and the use of concatenatable Point-To-MultiPoint (PTMP) broadcast
messages for displaying display messages on personal cellular
telecommunications devices in particular.
Background of the Invention
In Applicant's WO 01/32558 A2 entitled "Method for Operating a
Cellular Telecommunications Network, and Method for Operating a Personal
Cellular Telecommunications Device" and WO 01/52572 Al entitled "Method
far Operating a Cellular Telecommunications Network", the contents of which
are incorponted herein by reference, mere is illustrated and described a screen
saver application for displaying display messages on personal cellular
telecommunications devices in a screen saver like manner, namely, their display
is temporarily interrupted during, say, a voice call, an Internet session, and the
like. The display messages are preferably so-called "interactive display
messages" in the sense mat a subscriber can automatically activate a Point-To-
Point (PTP) transmission response mechanism from a dedicated response means
integrally provided in a display message. Interactive display messages are
preferably transmitted over a Point-To-MultiPoint (PTMP) transmission
capability as opposed to over a PTP transmission capability, thereby rendering an
interactive cellular broadcasting service.
ETSI's GSM 03 Al standard entitled "Technical Realization of Cellular
Broadcast Service", the contents of which are incorporated herein by reference,

standardizes a so-called "macromessage" constituted by between one and 15
broadcast messages each having a 82 byte payload for transporting long display
messages of up to a maximum of 1230 bytes. This upper limit of 15 broadcast
messages is due to the provisioning of only 4 bits for the purpose of specifying
the number of pages in a macromessage i.e. 1111. Despite the inclusion of the
macromessage feature since the inception of the GSM 03.41 standard, neither do
many installed OSM Cell Broadcast Controllers (CBCs) employed for parsing an
display message into broadcast messages support the macromessage feature, nor
do many Base Station Controllers (BSCs) for transmitting the broadcast
messages and nor do many OSM personal cellular telecommunications devices.
Looking to the future, assuming that all installed CBCs, BSCs and devices
support the macromessage capability, the maximum 1230 byte payload of a
macromessage may be insufficient to transport certain bandwidth heavy display
messages, for example, including video content.
Summary of the Invention
Generally speaking, the present invention is directed to the use of
concatenatable Point-To-MultiPoint (PTMP) broadcast messages for displaying
display messages on personal cellular telecommunications devices in a robust
manner entirely independent of the macromessage capability of a transmitting
BSC or the individual macromessage capability of a receiving personal cellular
telecommunications device. Moreover, the present invention is capable of
concatenating a far greater number of PTMP broadcast messages than the
maximum concatenation capability of GSM 03.41's macromessage feature,
thereby effectively enabling the CB channels dedicated for broadcast messages to
be employed for transporting mobile services, for example, WAP, and the like
The present invention is implemented by reserving a portion of the payload
of an otherwise conventional PTMP broadcast message for concatenation
purposes including concatenation of two or more PTMP broadcast messages
and/or concatenation of two or more macromessages into a so-called

supermacromessage. The reserved portions of the payloads of PTMP broadcast
messages are therefore effectively pseudo-headers whose contents do not
constitute part of the display message per se. However, whilst the pseudo-
headers of PTMP broadcast messages in accordance with the present invention
effectively replace the functionality of their header counterparts when used, there
still exist network advantages for transmitting PTMP broadcast messages as part
of macromessages where possible.
A client application for displaying display messages transported over an
air interface in accordance with the present invention is preferably customizable
for execution on either a non-macromessage compliant device or a macromessage
compliant device. The customization is preferably achieved by way of a
customization protocol, for example, as illustrated and described Applicant's co-
pending PCT International Applications PCT/IL01/00165 and PCT/IL01/00424.
the contents of which are incorporated herein by reference.
The personal cellular telecommunications devices can include a wide range
of mobile handheld devices including inter alia simple phones, Smartphoncs,
Communicators, Wireless Information Devices (WIDs), and the like. The client
applications can be developed under different industry wide and proprietary
development environments, and can run on different Operating Systems (O/Ss)
including inter alia Microsoft CE, Symbian EPOC, Palm O/S, and the like.
Brief Description of the Drawings
In order to understand the invention and to see how it can be carried out in
practice, a preferred embodiment will now be described, by way of a non-
limiting example only, with reference to the accompanying drawings, in which
similar parts are likewise numbered, and in which:
Fig. 1 shows a schematic representation of a GSM mobile cellular
telecommunications network for displaying display messages on personal cellular
telecommunications devices,

Fig. 2 is a schematic diagram showing a preferred embodiment of a GSM-
type modified PTMP broadcast message for displaying display messages in
accordance with the present invention;
Fig. 3 is a flow diagram showing the parsing of a display message into
PTMP broadcast messages ready for broadcasting in accordance with the present
invention;
Fig. 4 is a schematic diagram showing the parsing of a display message
into a sequence of GSM-type individual PTMP broadcast messages in
accordance with a first mode of parsing;
Fig. 5 is a schematic diagram showing the parsing of a display message
into a GSM-type macromessage of PTMP broadcast messages in accordance with
a second mode of parsing;
Fig. 6 is a schematic diagram showing the parsing of a display message
into a supermacromessage of GSM-type macromessages in accordance with a
third mode of parsing;
Fig. 7 is a flow diagram of a client application for displaying a display
message on a non-macromessage compliant personal cellular
telecommunications device in accordance with the present invention;
Fig. 8 is a flow diagram of a client application for displaying, a display
message on a macromessage compltant personal cellular telecommunications
device in accordance with the present invention;
Fig. 9 is a schematic diagram showing an intermediate message yielded
during the operation of the personal cellular telecommunications device of Figure
8 for displaying of a display message;
Fig. 10 is a schematic diagram showing a preferred embodiment of a
GSM-type modified PTKlP broadcast message of the first PTMP broadcast
message of a macromessage for concatenating macromessages into
supennacromessages in accordance with the present invention;

Fig. 11 is a flow diagram showing the parsing of a display message into
macromessages of a supermacromessage ready for broadcasting in accordance
with the present invention;
Fig. 12 is a flow diagram of a client application for displaying a display
message on a macromessage compliant personal cellular telecommunications
device in accordance with the present invention; and
Figs. 13A and 13B are schematic diagrams showing alternative
embodiments of a GSM-type modified PTMP broadcast message for displaying
display messages in accordance with the present invention.
Detailed Description of the Drawings
Figure 1 shows a GSM cellular telecommunications network 1 for
displaying display messages on personal cellular telecommunications devices
(hereinafter referred to as "devices ") 2. The network 1 includes a Cell Broadcast
Controller (CBC) 3 for parsing a display message into PTMP broadcast messages
to be broadcasted from one of two classes of Base Station Controller (BSC) 4,
namely, non-macromessfge compliant BSCs 4A and macromessage compliant
BSCs 4B. Each device 2 includes a host Mobile Equipment (ME) 6, and a
resident Subscriber Identity Module (SIM) card 7 capable of running SIM Toolkit
applications (constituting client applications). Each bost ME 6 has its own unique
vendor allocated 15 digit International Mobile Equipment Identification (IMEI)
number 8, for example, 490548400308362. Each SIM 7 has a cellular operator
allocated 15 digit International Mobile Subscriber Identity (IMSI) number 9, for
example, 425010100437187. A device 2 can be either a non-macromessage
compliant device 2A or a macromessage compliant device 2B, and its
macromessage compliancy can be determined by way of a customization protocol
employing either its IMEI or its IMSI, for example, as illustrated and described in
Applicant's co-pending PCT International Applications PCT/IL01/00165 and
PCT/IL01/00424, the contents of which are incorporated herein by reference.

Figure 2 shows that a modified GSM-type PTMP broadcast message 11 is
based on a conventional PTMP broadcast message having 88 bytes divided
between a 6 byte header 12 and a 82 byte payload 13. The header 12 includes a
macromessage identifier 14 for identifying a macromessage, a macromessage
page field 16 for specifying an integer I of pages in a macromessage where K≥I≥1
and K is a predetermined maximum number of PTMP broadcast messages in a
macromessage (K=15 for a GSM-type macromessage), and a macromessage page
counter 17 for specifying a page number J=(1, 2, ..., 1-1, I≤15) of a PTMP
broadcast message in a macromessage. The value J is incremented by 1 for each
consecutive PTMP broadcast message in a macromessage. The payload 13
includes a reserved pseudo-header 18, and a payload remainder 19 for storing the
actual content of an intended display message including inter alia display
instructions, text, graphics, and the like. The pseudo-header 18 has a display
message identifier 21 for identifying a display message, a PTMP broadcast
message field 22 for specifying a value P≥1 of the number of PTMP broadcast
messages required to transport an entire display message, and a PTMP broadcast
message counter 23 Q-(l, 2 P-l, P) for specifying the location of a PTMP
broadcast message in a sequence of P PTMP broadcast messages. The value Q is
incremented by 1 for each consecutive PTMP broadcast message in a sequence of
P PTMP broadcast messages. The pseudo-header 18 also includes a
supermacromessage field 24 for specifying the number of macromessages L≥1
required to transport an entire display message, and a supermacromessage counter
26 M=(1, 2, ..., L-l, L) for specifying the location of a macromessage in a
supermacromessage. The value M is incremented by 1 for each consecutive
macromessage in a supermacromessage.
The operation of the GSM mobile cellular telecommunications network 1
is now described with reference to Figures 3-9 in respect of both non-
macromessage compliant devices 2A and macromessage compliant devices 2B,
and both non-macromessage compliant BSCs 4A and macromessage compliant
BSCs 4B.

In the case of either a BSC 4A or a BSC 4B, the CBC 3 initially
determines the number P≥1 of PTMP broadcast messages required to transport an
entire display message 27. In the case of a BSC 4A, the CBC 3 parses the display
message 27 into P PTMP broadcast messages 28 including assigning values to
its/their display message identifiers) 21, PTMP broadcast message field(s) 22
and PTMP broadcast message counters) 23 prior to transmission at the BSC 4A
for display of its/their originating display message 27 on a device 2A or 2B (see
solid line in Figure 3, and Figure 4): The CBC 3 assigns the same identification
number 123456 to its/their display message identificr(s) 21. The CBC 3 assigns
the same value P to its/their PTMP broadcast message field(s) 22. The CBC 3
assigns a value Q=(1, 2, P-1, P) to its/their PTMP broadcast message
counter(s) 23 where the value Q is incremented by 1 for each consecutive PTMP
broadcast message 28 of the P PTMP broadcast mcssagc(s) 28. Also, the CBC 3
can assign default values, say, L"M=0, to its/their supermacromessage field(s) 24
and its/their supermacromessage counter(s) 26.
In the case of a BSC 4B and P≤15, the CBC 3 and the BSC 4B parse the
display message 27 into P≤15 PTMP broadcast messages 28 including assigning
values to its/their macromessage identifier(s) 14, macromessage page field(s) 16,
macroraessage page counter(s) 17, display message identifier(s) 21, PTMP
broadcast message field(s) 22 and PTMP broadcast message counter(s) 23 prior to
the P≤15 PTMP broadcast messages) 28 being ready for transmitting at the BSC
4B for displaying its/their originating display message 29 on a device 2A or 2B
(see hashed line in Figure 3, and Figure 5): The CBC 3 allocates the
identification number 171717 for assigning to its/their macromessage identificr(s)
14 by the BSC 4B. The BSC 4B assigns the same value I to its/their
macromcssagc page field(s) 16, and a value J to its/their macromessage page
counter(s) 17. Typically, the 1 and Q values of its/their macromessage page
fieid(s) 13 and macromessage page counters(s) 17 arc the same as the P and Q
values of their counterpart PTMP broadcast field(s) 22 and PTMP broadcast
counter(s) 23, respectively. The CBC 3 assigns the same identification number

232323 to its/their display message identifier(s) 21. The CBC 3 assigns the same
value P to its/their PTMP broadcast message field(s) 22. The CBC 3 assigns a
value Q-(1, 2 , P-l, P≤15) to its/their PTMP broadcast message counter(s) 23
where Q is incremented by 1 for each consecutive P≤15 PTMP broadcast
message 28 of the P≤15 PTMP broadcast message(s) 28. The CBC 3 can also
assign default values, say, L=M=0, to its/their supcrmacromessagc ficld(s) 24 and
its/their supcrmacromessagc counters) 26.
In the case of a BSC 4B and P>15, a decision has to be made whether to
still utilize the BSC's macromessage capability or not. In the event that its
macromessage capability is not to be utilized, then the display message is parsed
into P>15 PTMP broadcast messages in the same manner as in the case of a BSC
4A prior to transmission at the BSC 4B for displaying their originating display
message 27 on a device 2A or 2B.
In the event that its macromessage capability is still to be utilized, the CBC
3 determines the length of a supermacromessage in terms of the number L>1 of
macromessages required to transport the entire display message 27. The CBC 3
and the BSC 4B parse the display message 27 into the P>15 PTMP broadcast
messages including assigning values to their macromessage identifiers 14,
macromessage page fields 16, macromessage page counters 17, display message
identifiers 21, PTMP broadcast message fields 22, PTMP broadcast message
counters 23, supermacromessage fields 24, and supcrmacromessagc counters 26
prior to transmission at the BSC 4B for displaying their originating display
message 27 on a device 2A or 2B (see hashed line in Figure 3, and Figure 6): The
CBC 3 allocates the identification numbers for the different macromessages for
assigning to their macromessage identifiers 14 by the BSC 4B. For example,
assuming- that P=25, the display message 27 is transportable by a
supermacromessage consisting of two macromessages, the first macromessage
being complete with 15 PTMP broadcast messages 28(1), ..., 28(15), and the
second macroraessage having 10 PTMP broadcast messages 28(16), ..., 28(25).
In the shown example, the CBC 3 allocates the value 454545 to the

macromessage identifiers 14 of the 1st macromessage, and the value 474747 to the
macromessage identifiers 14 of the 2nd macromessage.
The BSC 4B assigns the value 1=15 to the macromessage page field 16 of
each PTMP broadcast message of a complete macromessage, and the value I=P-
[15x(L-1)] to the macromessage page field 16 of the last typically incomplete
macromessage. The BSC 4B assigns a value J=(l, 2, ...., 15) to the
macromessage page counters 17 of each PTMP broadcast message of a complete
macromessage where the value J is incremented by 1 for each consecutive PTMP
broadcast message of a macromessage, and the value J=(1,2,.... P-[15x(L-l)]) to
the macromessage page counters 17 of the PTMP broadcast messages of the last
typically incomplete macromessage. In the above example, the BSC 4B assigns
the value 1=15 to the mscromessage page fields 16 of all IS PTMP broadcast
messages 28 of the 1st macromessage, and a J-(l, 2, ..... 15) to their
macromessage page counters 17. Also, the BSC 4B assigns the value I=10 to the
macromessage page fields 21 of all 10 PTMP broadcast messages 28 of the 2nd
macromessage, and a Q-(l, 2 10) to their macromessage page counters 17.
The CBC 3 assigns the same identification number 123123 to the display
message identifiers 21 of all 25 PTMP broadcast messages. The CBC 3 assigns
the same value P to the PTMP broadcast message fields 21 of all 25 PTMP
broadcast messages, and values Q-{1, 2, , P-l, P) to their PTMP broadcast
message counters 23 where the value Q is incremented by 1 for each consecutive
PTMP broadcast message. The CBC 3 also assigns the same value L to the
supermacromessage fields 24 of all 25 PTMP broadcast messages, and a value
M=(l, 2, ..., L-1, L) to their supermacromessage counters 26 where M is
incremented by 1 for each consecutive macromessage in a supermacromessage.
In the above example, the CBC 3 assigns the value P=25 to the PTMP broadcast
messages fields 22, the values Q=(l, 2, , 21, 25) to their PTMP broadcast
message counters 23, the value L=2 to the supermacromessage fields 24 of all 25
PTMP broadcast messages 28, the value M=l to the supermacromessage counters
26 of the 15 PTMP broadcast messages of the 1st macromessage, and the value

M=2 to the supermacromessage counters 26 of each of the 10 PTMP broadcast
messages of the 2nd macromessage.
A non-macromessagc compliant device 2A is, by definition, unable to
interpret macromessage information contained in the header of a PTMP broadcast
message and therefore as a consequence handles PTMP broadcast messages 11
originating from either a BSC 4A or a BSC 4B in the same manner, namely, it
processes the information stored in their pseudo-headers 18. In contrast, a
macromessage compliant device 2B handles incoming PTMP broadcast messages
originating from a BSC 4A and a BSC 4B differently.
Turning to Figure 7, a device 2A receives incoming PTMP broadcast
messages 11 which are individually automatically downloaded in their entirety to
its SIM 7. The client application determines from its PTMP broadcast message
field 22 whether a PTMP broadcast message is part of a single PTMP broadcast
message (P=l) display message or a multi-PTMP broadcast message (P>1)
display message. In the former case, the client application strips off its header 12
and its pseudo-header 18, and processes its payload remainder 19 for yielding the
contents of the display message for display on the device 2A. In the latter case,
the client application sorts the P PTMP broadcast messages of a display message
into sequence by their PTMP broadcast message counters 23 and then processes
their payload remainders 19 for yielding the contents of the display message for
display on the device 2A. After a predetermined timeout, the client application
discards any incomplete display messages.
Turning to Figure 8, in the case of a device 2B receiving incoming PTMP
broadcast messages, its ME 6 automatically attempts to process them by
macromessage information potentially contained in their headers, namely, to
order the PTMP broadcast messages of each macromessage in sequence. In the
case of PTMP broadcast messages transmitted by a BSC 4A, since their headers
are devoid of macromessage information, the ME 6 cannot process them and
therefore they are individually downloaded to the SIM 7 as single PTMP
broadcast message intermediate messages. Each such intermediate message is in

actual fact identical to its originating PTMP broadcast message in the sense that it
has an identical header and an identical payload.
In the case of PTMP broadcast messages transmitted by a BSC 4B and
therefore containing macromessage information, the ME 6 is able to process them
to generate intermediate messages derived from one or more PTMP broadcast
messages and up to 15 PTMP broadcast messages for downloading to the SIM 7.
In the event that an intermediate message is derived from a single PTMP
broadcast message (P=l) display message, its subsequent intermediate message is
also identical to its originating PTMP broadcast message in the sense that it has
an identical header and an identical payload. In the event that an intermediate
message is derived from a multi-PTMP broadcast message display message, each
such intermediate message has a header identical to the header of its first PTMP
broadcast message, and a payload including the pseudo-header of its first PTMP
broadcast message and its payload remainder, and the entire payloads of its
remaining P-1 PTMP broadcast messages including their pseudo-headers spaced
therealong at regular intervals. Figure 9 shows the intermediate message 29
which would be yielded on receipt of the P≤15 PTMP broadcast messages 28
derived from the display message 27 described hereinabove with reference to
Figure 5. After a predetermined timeout, the ME 6 discards any incomplete
macromessages.
The client application determines whether an intermediate message is
derived from a single PTMP broadcast message (Y=l) display message or a
multi-PTMP broadcast message (Y>1) display message. In the former case, such
an intermediate message can be classified into one of three categories: Class 1 in
the event it derives from a single PTMP broadcast message (P=l) display
message, transmitted by either a BSC 4A or a BSC 4B. Class 2 in the event it
derives from a multi-PTMP broadcast message (P>1) display message transmitted
by a BSC 4A. And Class 3 in the event it derives from a single PTMP broadcast
message of a last incomplete macromessage of a two or more macromessage
(L>1) supermacromessage, for example, the 16th or the 31st PTMP broadcast

message of a multi-PTMP broadcast message display message, transmitted by a
BSC 4B.
In the case that an intermediate message is derived from a single PTMP
broadcast message (P=l) display message as determined from its PTMP
broadcast message field 22, the client application strips off its header 12 and its
pseudo-header 18, and processes its payload remainder 19 for yielding the
contents of the display message for display on the device 2B. In the event that
such an intermediate message is not derived from a single PTMP broadcast
message (P=l) display message, it is necessary to determine from its
supermacromessage field 24 whether it falls into cither Class 2 or 3. In the case
that such an intermediate message falls into Class 2, it is processed in the same
manner as described above with reference to a non-macromessage compliant
device 2A, namely, the client application sorts the P PTMP broadcast messages of
a multi-PTMP broadcast message (P>1) display message into sequence by their
PTMP broadcast message counters 23 and then processes their payload
remainders 19 for yielding the contents of the display message for display on the
device 2B.
In the case that an intermediate message is derived from two or more
PTMP broadcast messages indicative of their transmission by a BSC 4B, the
client application determines from either the PTMP broadcast message field 22 or
the supermacromessage field 24 of the first PTMP broadcast message whether it
is derived from a single macromessage (P≤15) display message or a multi-
macromessage (P>15) display message. In the former case, the client application
strips off the header 12 and the pseudo-headers 18 of the PTMP broadcast
messages before processing the payload remainders 19 of all the PTMP broadcast
messages of the intermediate message for yielding the content of the display
message for display on the device 2B. In the latter case, the client application
treats the intermediate message in the same manner as described for the former
case that a PTMP broadcast message is derived from a single macromessage
(P≤15) display message but it concatenates the two or more macromessages of a

supermacromessage including a single FTMP broadcast message (Y=l)
macromessage derived from a Class 3 intermediate message as identified by their
display message identifiers 21 in sequence prior to displaying the display message
on the device 2B.
In the case of a display message being transmitted by a macromessage
compliant BSC 4B for display on a device 2B, the concatenation of the PTMP
broadcast messages of a macromessage is transparent to the device 2B, and
therefore support of a supermacromessage capability is in practice equivalent to
support of the concatenation of PTMP broadcast messages on a non-
macromessage compliant device 2A. To this end, each macromessage requires
that only its first PTMP broadcast message 31 (see Figure 10) has the pseudo-
header 18 with the display message identifier 21, the supermacromessage field 24
and the supermacromessage counter 26 whilst its other up to 14 PTMP broadcast
messages may have full 82 byte payloads.
The operation of a GSM mobile telecommunications network 1 having
only macromessage compliant devices 2B and macromessage compliant BSCs
4B is now described with reference to Figures 11 and 12. A CBC 3 initially
determines the number L≥1 of macromessages required to transport an entire
display message 27, and thereafter, the CBC 3 and a BSC 4B parse the display
message 27 in the same manner as described hereinabove in connection with
Figure 6 without the assigning of values to the display message identifiers 21, the
PTMP broadcast message fields 22 and the PTMP broadcast message counters of
the 2nd and up to 15th PTMP broadcast message of each macromessage which are
absent. On receiving incoming PTMP broadcast messages, the ME 6 of a device
2B automatically processes them by the macromessage information contained in
their headers 12 to sort the PTMP broadcast messages of each macromessage.
The ME 6 downloads intermediate messages which are derived from cither a
single macromessage (L=l) supermacromessage or a multi-macromessage (L>1)
supermacromessage. Each intermediate message may contain from a single
PTMP broadcast message up to 15 PTMP broadcast messages, and includes the

header of the 1st PTMP broadcast message, and its payload including its pseudo-
header 18 and its payload remainder 19, and the full payloads of any additional
PTMP broadcast messages. In the case that an intermediate message is derived
from a single macromessage supermacromessage, the client application strips off
the header 12 and the pseudo-header 18 of its first PTMP broadcast message for
yielding the content of the display message for display on the device 2B. In the
case that an intermediate message is derived from a multi-macromessage
supermacromessage, the client application concatenates the two or more
macromessages as identified by their display message identifiers 21 in sequence
prior to displaying the display message on the device 2B.
While the invention has been described with respect to a limited number
of embodiments, it will be appreciated that many variations, modifications, and
other applications of the invention can be made within the scope of the appended
claims. For example, alternative means instead can be provided for enabling a
personal cellular telecommunications device to determine the receipt of a
complete display message or a complete supermacromessage. Thus, rather than
providing each PTMP broadcast message with a PTMP broadcast message field
22, an end of display message symbol (constituting a complete display message
indication means) can be employed in which case each PTMP broadcast message
32 for transporting a display message except the last would have the PTMP
broadcast message counter 23 (see Figure 13A) whilst the last PTMP broadcast
message 33 for transporting a display message would have the PTMP broadcast
message counter 23 and an end of display message symbol 34 (see Figure 13B).
The same approach may also be applied to supermacromessage information.

We Claim
1. A display message means (11) adaptable in a mobile cellular
telecommunications network (1) for displaying on a personal cellular
telecommunications device (2), the display message means (11) being
transportable over an air interface by P≥1 Point-To-Multipoint (PTMP)
broadcast messages each comprising a) a header (12) having i) a
macromessage identifier (14) for identifying a macromessage; ii) a
macromessage page field (16) for specifying a total number of pages I in
a macromessage where K ≥ I ≥ 1 and K is a predetermined maximum
number of PTMP broadcast messages in a macromessage; and iii) a
macromessage page counter (17) for specifying a page number J = (1,
2, I-1, I ≤ K) of a PTMP broadcast message in a macromessage,
and b) a payload (13) having a reserved pseudo-header (18) and a
payload remainder (19) for storing actual content, the pseudo-header
(18) having i) a display message identifier (21) for identifying a display
message; and ii) a PTMP broadcast message counter (23) Q = (1, 2,
, P-l, P) for specifying the location of a PTMP broadcast message in
a sequence of P PTMP broadcast messages.
2. The message means (11) as claimed in claim 1, wherein the pseudo-
header comprises a complete display message indicator for enabling a
personal cellular telecommunications device (2) to determine the receipt
of a complete display message.

3. The message as claimed in claim 2, wherein the complete display
message indicator is constituted by a PTMP broadcast message field (22)
for storing the value P.
4. The message means as claimed in claim 2, wherein the complete display
message indicator is constituted by an end of display message symbol.
5. The message means as claimed in any one of claims 1 to 4, wherein the
pseudo-header (18) comprises a supermacromessage counter (26) M =
(1, 2, , L-1, L) for specifying the location of a macromessage
in a supermacromessage constituted by a sequence of L > 1
macromessages.
6. The message means as claimed in claim 5, wherein the pseudo-header
comprises a complete supermacromessage indicator for enabling a
personal cellular telecommunications device to determine the receipt of a
complete supermacromessage.
7. The message means as claimed in claim 6, wherein the complete
supermacromessage indicator is constituted by a supermacromessage
field (24) for storing the value L.
8. The message means as claimed in claim 6, wherein the complete
supermacromessage indicator is constituted by an end of
supermacromessage symbol.

9. A method for broadcasting a display message means for display on a
personal cellular telecommunications device, the display message means
being transported over an air interface by one or more PTMP broadcast
messages of claim 1 comprising at least one PTMP broadcast message
having a complete display message indicator as claimed in claim 2, the
method comprising the steps of:
a) determining the number P ≥ 1 of PTMP broadcast messages
for transporting the entire display message;
b) parsing the display message into the P PTMP broadcast
messages including assigning the same identification number
to its/ their display message identifier (s);
c) assigning values Q = (1, 2, , P-l, P) to its / their PTMP
broadcast message counter(s) where Q is incremented for
each PTMP broadcast message in the sequence of P PTMP
broadcast messages;
d) completing the complete display message indicator of the at
least one PTMP broadcast message (s) of claim 2; and
e) transmitting the P PTMP broadcast messages for display of
its/their originating display message on a personal cellular
telecommunications device.

10. The method as claimed in claim 9, comprising the step of assigning the
same identification number to its/their macromessage identifier(s) of
each macromessage, assigning values I ≤ K to it/their macromessage
page field(s), and values J = (1, 2, , 1-1, I macromessage page counter(s).
11. The method as claimed in one of claims 9 or 10 and wherein the P PTMP
broadcast messages are of claim 5 having at least one PTMP broadcast
message with a complete supermacromessage indicator of claim 6, and
comprising the steps of:
f) determining the number L of macromesssages for transporting the
entire display message;
g) assigning values M = (1, 2, , L-1, L) to the
supermacromessage counter(s) of its/their P PTMP broadcast
message(s) wherein M is incremented for each macromessage in
the supermacromessage; and
h) completing the complete supermacromessage indication means of
the at least one PTMP broadcast message(s) of claim 6.
12. A mobile cellular telecommunications network for executing the method
as claimed in any one of claims 9 to 11.
13. A method for displaying a display message means on a personal cellular
telecommunications device, the method comprising the steps of:

(a) receiving incoming PTMP broadcast messages in
accordance with any one of claims 1 to 8; and
(b) displaying a display message whose contents are derived
solely from the payload remainder(s) of its P ≥ 1 PTMP
broadcast message(s) on the personal cellular
telecommunications device.

14. The method as claimed in claim 13, comprising the step of determining
whether an incoming PTMP broadcast message is part of a single PTMP
broadcast message (P = 1) display message.
15. The method as claimed in claim 13 or 14, comprising step ( c) of sorting
the PTMP broadcast messages of a multi-PTMP broadcast message (P >
1) display message into sequence for display of the display message on
the personal cellular telecommunications device.
16. The method as claimed in claim 15, wherein step (c ) comprises
processing at least the PTMP broadcast message counter of the PTMP
broadcast messages of a multi-PTMP broadcast message (P > 1) display
message.
17. The method as claimed in any one of claims 13 to 16, comprising step
(d) of sorting the macromessages of a multi-macromessage
supermacromessage into sequence for display of the display message on
the personal cellular telecommunications device.

18. The method as claimed in claim 17, wherein step (d) comprises
processing at least the supermacromessage counter of the PTMP
broadcast messages of a multi-PTMP broadcast message (P > 1) display
message.
19. The method as claimed in any one of claims 13 to 18, comprising step
(e) of determining whether the personal cellular telecommunications
device is macromessage complaint.
20. A client application for executing the method as claimed in any one of
claims 13 to 19.
21. A smart card for executing the method as claimed in any of claims 13 to
19.
22. A personal cellular telecommunications device for executing the method
as claimed in any one of claims 13 to 19.
23. A display message means for displaying on a macromessage compliant
personal cellular telecommunications device, the device being adaptable
in a mobile cellular telecommunications network, the display message
being transportable over an air interface by one or more macromessages
each containing up to K Point-To-MultiPoint (PTMP) broadcast messages
where K is a predetermined maximum number of PTMP broadcast
messages in a macromessage, the macromessage having at least one
PTMP broadcast message comprising a) a header comprising i) a

macromessage identifier for identifying a macromessage; ii) a
macromessage page field for specifying a total number of pages 1 in a
macromessage where K≥I≥1; and iii) a macromessage page counter for
specifying a page number J=(l, 2, , 1-1, I≤K) of a PTMP broadcast
message in a macromessage, and b) a payload including a reserved
pseudo-header and a payload remainder for storing actual content, the
pseudo-header having i) a display message identifier for identifying a
display message; and ii) a supermacromessage counter for specifying a
macromessage number M=(l, 2, , L-l, L) in a sequence of L≥1
macromessages constituting a supermacromessage.
24. The message means as claimed in claim 23, wherein the pseudo-header
comprises a complete supermacromessage indication means for enabling
the personal cellular telecommunications device to determine the receipt
of a complete supermacromessage.
25. The message means as claimed in claim 24, wherein the complete
supermacromessage indication means is constituted by a
supermacromessage field for storing the value L.
26. The message means as claimed in claim 24, wherein the complete
supermacromessage indication means is constituted by an end of
supermacromessage symbol.
27. A method for broadcasting a display message for display on a personal
cellular telecommunications device, the display message being
transported over an air interface by one or more macromessages as

claimed in claim 23 having at least one macromessage as claimed in claim
24, the method comprising the steps of:
a) determining the number L≥1 of macromessages for transporting the
entire display message;
b) parsing the display message into the L macromessage (s) including
assigning the same identification number to the display message
identifier (s) of its/their PTMP broadcast message(s).
c) assigning values M=(1, 2, , L-1, L) to the supermacromessage
counter(s) of its/their PTMP broadcast messages where M is
incremented for each macromessage in the sequence of L
macromessage(s);
d) assigning the same identification number to the macromessage
identifier(s) of its/their PTMP broadcast message(s);
e) assigning values I≤K to the macromessage page field(s) of its/their
PTMP broadcast message(s);
f) assigning values 3=(1, 2, , 1-1, I≤K) to the macromessage page
counter(s) of its/their PTMP broadcast message(s);
g) completing the complete supermacromessage indication means of the
at least one PTMP broadcast message(s) in accordance with claim 24;
and

h) transmitting the PTMP broadcast message(s) of the L≥1
macromessage(s) for display of its/their originating display message on
a personal cellular telecommunications device.
28. A mobile cellular telecommunications network for executing the method
as claimed in claim 27.
29. A method for displaying a display message on a personal cellular
telecommunications device, the method comprising the steps of:

a) receiving incoming PTMP broadcast messages as claimed in any
one of claims 23 to 26; and
b) displaying a display message whose contents are derived solely
from the payload remainders of the PTMP broadcast messages of
its L≥1 macromessages on the personal cellular
telecommunications device.

30. The method as claimed in claim 29, comprising step c) of sorting the
macromessages of a multi-macromessage supermacromessage into
sequence for display of the display message on the personal cellular
telecommunications device.
31. The method as claimed in claim 30, wherein step c) comprises processing
at least the supermacromessage counter of a macromessage of a multi-
macromessage (L>1) supermacromessage display message.

32. A client application for executing the method as claimed in any one of
claims 29 to 31.
33. A smart card for executing the method as claimed in any one of claims
29 to 31.
34. A personal cellular telecommunications device for executing the method
as claimed in any one of claims 29 to 31.

The present invention is directed to the use of concatenatable Point-To-MultiPoint (PTMP) broadcast messages for displaying display messages, and in particular long display messages requiring two or more PTMP broadcast
messages, on personal cellular telecommunications devices. The present
invention is achieved by the provision of a pseudo-header including a display message identifier, a PTMP broadcast message field for specifying the number P≥1 of PTMP broadcast messages to transport an entire display message, and a PTMP broadcast message counter Q=(1, 2, ......., P-1, P) for specifying the location of a PTMP broadcast message in that sequence. A pseudo-header may alternatively enable concatenation of two or more macromessages into a supermacromessage.

Documents:

188-KOLNP-2004-(13-01-2012)-FORM-27.pdf

188-KOLNP-2004-(15-01-2013)-FORM-27.pdf

188-KOLNP-2004-FORM 27.pdf

188-kolnp-2004-granted-abstract.pdf

188-kolnp-2004-granted-claims.pdf

188-kolnp-2004-granted-correspondence.pdf

188-kolnp-2004-granted-description (complete).pdf

188-kolnp-2004-granted-drawings.pdf

188-kolnp-2004-granted-examination report.pdf

188-kolnp-2004-granted-form 1.pdf

188-kolnp-2004-granted-form 18.pdf

188-kolnp-2004-granted-form 2.pdf

188-kolnp-2004-granted-form 26.pdf

188-kolnp-2004-granted-form 3.pdf

188-kolnp-2004-granted-form 5.pdf

188-kolnp-2004-granted-reply to examination report.pdf

188-kolnp-2004-granted-specification.pdf

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Patent Number

235062

Indian Patent Application Number

188/KOLNP/2004

PG Journal Number

26/2009

Publication Date

26-Jun-2009

Grant Date

24-Jun-2009

Date of Filing

11-Feb-2004

Name of Patentee

CELLTICK TECHNOLOGIES LTD.

Applicant Address

HAGALIM STREET 7, 46725 HERZLIYA, ISRAEL

Inventors:

#	Inventor's Name	Inventor's Address
1	LUPOVICM, EITEN	6 MORDEI MAGETAOT STREET 52554 RAMAT GAN
2	GIL, AMIT	10B LOCHAMAI HAGETAOT STREET 52615 YEHUD
3	NILEL, SHAY	13 MA' PARDES STREET P.O. BOX 4025 40600 TEL MOND
4	LUPOVICM, EITEN	6 MORDEI MAGETAOT STREET 52554 RAMAT GAN
5	NILEL, SHAY	13 MA' PARDES STREET P.O. BOX 4025 40600 TEL MOND
6	GIL, AMIT	10B LOCHAMAI HAGETAOT STREET 52615 YEHUD

PCT International Classification Number

H04Q7/22

PCT International Application Number

PCT/IL2001/00775

PCT International Filing date

2001-08-16

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA