Title of Invention	A METHOD OF TRANSMITTING BROADCAST MESSAGE IN A MOBILE COMMUNICATION SYSTEM
Abstract	A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system is disclosed. More specifically, a base station determines whether a periodic enhanced broadcast page is enabled or disabled, and then transmits at least one broadcast message via a first slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast page is enabled.

Title of Invention

A METHOD OF TRANSMITTING BROADCAST MESSAGE IN A MOBILE COMMUNICATION SYSTEM

Abstract

A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system is disclosed. More specifically, a base station determines whether a periodic enhanced broadcast page is enabled or disabled, and then transmits at least one broadcast message via a first slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast page is enabled.

Full Text	WO 2006/093379 1 PCT/KR2006/000503 A METHOD OF TRANSMITTING BROADCAST MESSAGE IN A MOBILE COMMUNICATION SYSTEM Technical Field The present invention relates to a method of transmitting a broadcast message, and more particularly, to a method of transmitting a broadcast message in a mobile communication system. Background Art A broadcast message uses a data burst message to transmit data to all or specific groups of mobile stations. At the same time, the mobile stations are in a specified mode when receiving the broadcast message. If the broadcast message is transmitted via a Forward Common Control Channel (F-CCCH) and a Secondary Broadcast Control Channel (S-BCCH), control information of the broadcast message to be transmitted in sent via the F-CCCH. For example, the control information includes information related to whether the broadcast message has been transmitted, and Enhanced Broadcast Page information which indicates the location of the broadcast message transmitted on the S-BCCH. According to the conventional method, the aforementioned broadcast message is transmitted via the S-BCCH. More specifically, the broadcast message is not transmitted via a Primary Broadcast Control Channel (P-BCCH), which is used to WO 2006/093379 2 PCT/KR2006/000503 transmit an overhead message only, nor via the F-CCCH. However, the Enhanced Broadcast Page information can be transmitted using a Multi-slot Enhance Broadcast Paging scheme or a Periodic Enhanced Broadcast Paging scheme. Figure 1 is an example showing the Multi-slot Enhanced Broadcast Paging scheme. In detail, the Multi-slot Enhanced Broadcast Paging scheme is a scheme which transmits the Enhanced Broadcast Page information during F-CCCH slots so that all the mobile stations can receive the broadcast signal. Here, all the mobile stations are in the slotted mode to receive the broadcast signal. As illustrated in Figure 1, if a Maximum Paging Cycle period of the F-CCCH is 16 slots, the Enhanced Broadcast Page information can be continuously transmitted in the 16 slots. Furthermore, the Enhanced Broadcast Page information can be received by all the mobile stations receiving different slots on the F-CCCH. Figure 2 is an example illustrating a Periodic Enhanced Broadcast Paging scheme where a BCASTJNDEX is 1. In Figure 2, information on whether the Periodic Enhanced Broadcast Paging scheme is being used can be determined by the BCAST_INDEX of a MC-RR Parameters Message. For example, the value of the BCASTJNDEX represent by '000' indicates that the Periodic Enhanced Broadcast Paging scheme is not used. On the other hand, if the value of the BCASTJNDEX is not '000,' then the Periodic Enhanced Broadcast Paging scheme having (B+7) broadcast paging cycle period is being used. Here, the value of 'B' can be determined according to Equation 1. WO 2006/093379 3 PCT/KR2006/000503 [Equation 1] B = 21+1x l6 1≤ i ≤ 7 In Equation 1, i represents a value of the BCAST_INDEX transmitted via the MC-RR parameter message. In Figure 2, the value of the BCAST_INDEX is '1' and when applied to Equation 1, the value of B is 64 and the broadcast paging cycle is 71. The Enhanced Broadcast Page information is transmitted via a first F-CCCH slot of the broadcast paging cycle, and the Enhanced Broadcast Page information includes BCCHJNDEX and TIME_OFFSET. Consequently, transmission locations of the SBCCH and the broadcast message can be identified by the Enhanced Broadcast Page information. A plurality of BCCH is classified into Broadcast Control Channel Number (BCN). In detail, the BCN value of the P-BCCH is 1, and the BCN value of the S- BCCH can be any number between 2-8. The broadcast message is transmitted via the S-BCCH after 40x(l+TIME_OFFSET)ms with respect to the transmission point of the Enhanced Broadcast Page information. Here, the BCN value of the S-BCCH is BCCH_INDEX+1. As described above, in order to transmit a broadcast message, Enhanced Broadcast Page information, which provides information on whether the broadcast message is to be transmitted and the transmission location of the broadcast message, has to be first transmitted via the F-CCCH. Thereafter, the actual broadcast message is WO 2006/093379 4 PCT/KR2006/000503 transmitted via the S-BCCH. However, the problem with this transmission scheme is that the actual broadcast message cannot be transmitted via the F-CCCH. Disclosure of the Invention Accordingly, the present invention is directed to a method of transmitting broadcast message in a mobile communication system that substantially obviates one or more problems due to limitations and disadvantages of the related art. An object of the present invention is to provide a method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system where a plurality of broadcast messages are transmitted via a first slot of a broadcast paging cycle. Another object of the present invention is to provide a method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system where a single broadcast message is transmitted via at least one slot of a broadcast paging cycle. A further object of the present invention is to provide a method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system where at least one broadcast message included in each slot of the maximum paging cycle is transmitted. Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having WO 2006/093379 5 PCT/KR2006/000503 ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a method of transmitting a broadcast message using a Forward Common Control Channel (F- CCCH) in a wireless communication system includes a base station which determines whether a periodic enhanced broadcast page is enabled or disabled, and then transmits at least one broadcast message via a first slot of a broadcast paging cycle of the F- CCCH if determined that the periodic enhanced broadcast page is enabled. In another aspect of the present invention, a base station determines whether a periodic enhanced broadcast paging is enabled or disabled, and then transmits a single broadcast message via at least one slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast paging is enabled. Yet, in another aspect of the present invention, a base station first determines whether a periodic enhanced broadcast paging is enabled or disabled. Thereafter, the base station transmits at least one broadcast paging message via at least one slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast paging is enabled, and also transmits at least one broadcast messagein a subsequent broadcast slot according to an order of the broadcast paging message. WO 2006/093379 6 PCT/KR2006/000503 In another aspect of the present invention, a base station transmits a maximum slot cycle index for providing the broadcast message to a mobile station and receives the maximum slot cycle index and determining a maximum paging cycle. Thereafter, the base station transmits at least one broadcast message included in each slot of the maximum paging cycle of the F-CCCH, and then receives the at least one broadcast message in a specified slot of the maximum paging cycle. It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. Brief Description of Drawings The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings; FIG. 1 is an example showing the Multi-Slot Enhanced Broadcast Paging scheme; FIG. 2 is an example illustrating a Periodic Enhanced Broadcast Paging scheme where a BCAST_INDEX is 1; FIG. 3 is an example illustrating the Multi-slot Broadcast Message transmission scheme having a maximum paging cycle of 16 slots; WO 2006/093379 7 PCT/KR2006/000503 FIG. 4 is an example illustrating a Periodic Enhanced Broadcast Paging transmission scheme according to a first embodiment of the present invention; FIG. 5 is an example illustrating a Periodic Enhanced Broadcast Paging transmission scheme according to a second embodiment of the present invention; and FIG. 6 is an example illustrating a Periodic Enhanced Broadcast Paging transmission scheme according to a third embodiment of the present invention. Best Mode for Carrying Out the Invention Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. A mobile station (MS) has a right to know whether the S-BCCH, which is used for transmitting a broadcast message, is supported. The MS can determine whether the S-BCCH is supported or not based on the value of the NUM_BCCH__BCAST included in the MC-RR parameter message. For example, if the NUM_BCCH_BCAST value is '000,' the MS can determine that the S-BCCH is not supported, while if the NUM_BCCH_BCAST value is not '000,' then not only can the MS can determine that the S-BCCH is supported, but the number of the S-BCCH supported can also be determined since the S-BCCH supported number equals the value of the NUM_BCCH_BCAST. WO 2006/093379 8 PCT/KR2006/000503 The present invention can be applied to cases where the NUM_BCCH_BCAST value is '000' and as a result, does not support the S-BCCH for transmitting a broadcast message. In situations where the S-BCCH is unsupported, two transmission schemes can be used, namely, a Multi-slot Broadcast Message transmission scheme, and a Periodic Enhanced Broadcast Paging transmission scheme. Figure 3 is an example illustrating the Multi-slot Broadcast Message transmission scheme when a maximum paging cycle is 16 slots. As illustrated in Figure 3, the Multi-slot Enhanced Broadcast Paging scheme is a scheme which transmits the Enhanced Broadcast Page information in the slots on the F-CCCH so that all the mobile stations can receive the broadcast signal. Here, all the mobile stations are in the slotted mode to receive the broadcast signal. Furthermore, the Multi-slot Enhanced Broadcast Paging scheme can be applied to cases where the broadcast message is transmitted via a single slot on the F-CCCH. If a base station (BS) continuously transmits the broadcast message in 16 slots on the F-CCCH, each MS can successfully receive the broadcast message even if each MS in a cell receives the broadcast message via different slots on the F-CCCH. Figure 4 is an example illustrating a Periodic Enhance Broadcast Paging transmission scheme according to a first embodiment of the present invention. In Figure 4, a value of the BCAST_INDEX, transmitted via a MC-RR parameter message, is '1,' and three (3) broadcast messages are transmitted through a single slot. If plurality of broadcast messages is transmitted via a single slot, the broadcast message WO 2006/093379 9 PCT/KR2006/000503 can be transmitted during the first slot of the Broadcast Page Cycle. In addition, in the present embodiment, it is unnecessary to transmit Enhanced Broadcast Page information or put differently, information pertaining to the slot used to transmit the broadcast message on the F-CCCH. Figure 5 is an example illustrating a Periodic Enhanced Broadcast Paging transmission scheme according to a second embodiment of the present invention. In Figure 5, a value of the BCAST_INDEX, transmitted via a MC-RR parameter message, is '1' and the length of a broadcast message occupies three (3) slots. As illustrated in Figure 5, if there is only one broadcast message to be transmitted and the broadcast message has to be transmitted using three slots, the broadcast message can be transmitted using three consecutive slots, starting with a first slot. In this embodiment, as is the case with the first embodiment, it is unnecessary to transmit Enhanced Broadcast Page information. Figure 6 is an example illustrating a Periodic Enhanced Broadcast Paging transmission scheme according to a third embodiment of the present invention. In Figure 6, a value of the BCAST_INDEX, transmitted via a MC-RR parameter message, is '1,' and there are three broadcast messages to be transmitted. In the present embodiment, there is at least one broadcast message to be transmitted, and the length of each broadcast message exceeds permitted length for each slot. As illustrated in Figure 6, in the first slot of the Broadcast Page Cycle, Enhanced Broadcast page information which provides whether the broadcast message is transmitted as well as WO 2006/093379 10 PCT/KR2006/000503 the location of the broadcast message on the F-CCCH is transmitted. Furthermore, the broadcast message corresponding to each Enhanced Broadcast Page should be transmitted after 'n' number of slots. That is, a first broadcast message corresponding to a first Enhanced Broadcast Page is transmitted after 'n' slots, a second broadcast message corresponding to a second Enhanced Broadcast Page is transmitted after '2n' slots, a third broadcast message corresponding to a third Enhanced Broadcast Page is transmitted after '3n' slots, and k-th broadcast message corresponding to k-th Enhanced Broadcast Page is transmitted after 'k x n' slots. Figure 6 illustrates an example where n = 7. In Figure 6, since there are three broadcast messages to be transmitted and n = 7, the first broadcast message corresponding to the first Enhanced Broadcast Page is transmitted after 7 slots, the second broadcast message corresponding to the first Enhanced Broadcast Page is transmitted after 14 slots, the third broadcast message corresponding to the third Enhanced Broadcast Page is transmitted after 21 slots, and so forth. The Enhanced Broadcast Page information can be transmitted via a General Page Message (GPM) or an Universal Page Message (UPM). The following Table 1 is an example of a GPM format according to the present invention. (Table 1] GPM Common Fields: Field Length (bits) CONFIG_MSG_SEQ 6 WO 2006/093379 11 PCT/KR2006/000503 ACC_MSG_SEQ 6 CLASS_0_DONE 1 CLASS_1_DONE 1 TMSI_DONE 1 ORDERED_TMSIS 1 BROADCAST_DONE 1 RESERVED 4 ADD_LENGTH 3 ADD_PFIELD 8 x ADD_LENGTH PDU Format for a mobile station-addressed page: Field Length (bits) SERVICE_OPTION 0 or l6 PDU Format for broadcast Page: There is no Layer 3 field associated with this record. PDU Format for an enhanced broadcast page when NUM_BCCH_BCAST # '000': Field Length (bits) BCCH_INDEX 3 TIME-OFFSET 10 REPEAT_TIME_OFFSET 0 or 5 ADD_BCAST_RECORD 0 or 8 x EXT_BCAST_SDU_LENGTH PDU Format for an enhanced broadcast page when NUM_BCCH_BCAST = '000': There are no Layer % fields associated with this record. Table 2 is an example of a UPM format according to the present invention. WO 2006/093379 12 PCT/KR2006/000503 [Table 2] UPM Common Field: Field Length (bits) CONFIG_MSG_SEQ 6 ACC_MSG_SEQ 6 READ_NEXT__SLOT 1 READ_NEXT_SLOT_BCAST 1 PDU Format for a mobile station-addressed page: Field Length (bits) SERVICE_OPTION O or 16 ADD_MS_RECORD 0 or x EXT_BCAST_SDU LENGTH PDU Format for a mobile station-directed message announcement: There are no Layer 3 fields associated with this record. PDU Format for an enhanced broadcasts page when NUM_BCCH_BCAST # '000': Field Length (bits) BCCH_INDEX 3 TIME-OFFSET 10 REPEAT_TIME_OFFSET O or 5 ADD_BCAST_RECORD 0 or 8 x EXT_BCAST_SDU_LENGTH PDU Format for an enhanced broadcast page when NUM_BCCH_BCAST = '000': There are no Layer 3 fields associated with this record. WO 2006/093379 13 PCT/KR2006/000503 As shown in Tables 1 and 2, when the value of NUM_BCCH_BCAST is not '000,' the S-BCCH exists to transmit the broadcast message, and therefore, information associated with received via the S-BCCH is transmitted. On the contrary, if the value of NUM_BCCH_BCAST is '000,' there is no S-BCCH by which to transmit the broadcast message. As such, the broadcast message is transmitted via the B-CCCH, and it is unnecessary to transmit information pertaining to the broadcast information. Table 3 is another example of a GPM format according to the present invention. [Table 3] GPM Common Fields: Field Length (bits) CONFIG_MSG_SEQ 6 ACC_MSG_SEQ 6 CLASS_0_DONE 1 CIASS_1_DONE 1 TMSI_DONE 1 ORDERED_MSIS 1 BROADCAST_DONE 1 RESERVED 4 ADD_LENGTH 3 ADD_PFIELD 8 x ADD_LENGTH PDU Format for a mobile station-addressed page: Field Length (bits) WO 2006/093379 14 PCT/KR2006/000503 SERVICE_OPTION 0 or l6 PDU Format for broadcast Page: There is no Layer 3 field associated with this record. PDU Format for an enhanced broadcast page: Field Length (bits) BCCH_INDEX 3 TIME-OFFSET 10 REPEAT_TIME_OFFSET 0 or 5 ADD_BCAST_RECORD 0 or 8 x EXT_BCAST_SDU_LENGTH A field corresponding to 'PDU Format for an enhanced broadcast page' in Table 3 can include different information depending on whether the S-BCCH is ' supported. In other words, different information can be included depending on whether the value of NUM_BCCH_BCAST is '000' or not For example, if the value of NUM_BCCH_BCAST is not '000,' the BS sets the value of the field corresponding to 'PDU Format for an enhanced broadcast page' to a valid value depending on the transmission format of the broadcast message. At the same time, the MS uses the valid value transmitted from the BS to receive the broadcast message. Alternatively, if the value of NUM_BCCH_BCAST is '000,' the BS can set the value of the field corresponding to 'PDU Format for an enhanced broadcast page' as an unused value or an insignificant default value. In such a case, the MS determines that the value of the field is an invalid value and therefore does not use the value to receive the broadcast message. WO 2006/093379 15 PCT/KR2006/000503 For example, if NUM_BCCH_BCAST value is '000,' the BS can set the value of the BCCH_INDEX as currently unused value. At the same time, the BS can set the value o TIME_OFFSET to be an insignificant value such as '0000000000.' In addition, the value of ihe REPEAT_TIME_OFFSET and the value of ADD_BCAST_SDU _LENGTH can be excluded by setting the value of EXT_BCAST_SDU_LENGTH_IND to '00.' Table 4 is another example of a UPM according the present invention. [Table 4] UPM Common Field: Field Length (bits) CONFIG_MSG_SEQ 6 ACC_MSG_SEQ 6 READ_NEXT_SLOT 1 READ_NEXT_SLOT_BCAST 1 PDU Format for a mobile station-addressed page: Field Length (bits) SERVICE_OPTION O or ADD_MS_RECORD Oor x EXT_BCAST_SDU_ LENGTH PDU Format for a mobile station-directed message announcement: There are no Layer 3 fields associated with this record. PDU Format for an enhanced broadcasts page: Field Length (bits) WO 2006/093379 16 PCT/KR2006/000503 BCCH_INDEX 3 TIME-OFFSET 10 REPEAT_TIME_OFFSET 0 or 5 ADD_BCAST_RECORD 0 or 8 x EXT_BCAST_SDU_LENGTH A field corresponding to 'PDU Format for an enhanced broadcast page' in Table 4 can include different information depending on whether the S-BCCH is supported. In other words, different information can be included depending on whether the value of NUM_BCCH_BCAST is '000' or not. For example, if the value of NUM_BCCH_BCAST is not '000/ the BS sets the value of the field corresponding to 'PDU Format for an enhanced broadcast page' to a valid value depending on the transmission format of the broadcast message. At the same time, the MS uses the valid value transmitted from the BS to receive the broadcast message. Alternatively, if the value of NUM_BCCH_BCAST is '000,' the BS can set the value of the field corresponding to 'PDU Format for an enhanced broadcast page' as an unused value or an insignificant default value. In such a case, the MS determines that the value of the field is an invalid value and therefore does not use the value to receive the broadcast message. For example, if NUM_BCCH_BCAST value is '000,' the BS can set the value of the BCCH_INDEX as currently unused value. At the same time, the BS can set the value o TIME_OFFSET to be an insignificant value such as '0000000000.' In addition, the value of the REPEAT_TIME_OFFSET and the value of ADD_BCAST_SDU WO 2006/093379 17 PCT/KR2006/000503 _LENGTH can be excluded by setting the value of EXT_BCAST_SDU_LENGTHJND to '00.' With respect to the enhanced broadcast page scheme, if the same broadcast message or the same enhanced broadcast page information is to be re-transmitted, the initially transmitted broadcast message or the enhanced broadcast page information should be re-transmitted after a specified time period from the initially transmitted time. For example, the re-transmission should take place within (4 x (B+7)) slots of the initial transmission. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. WO 2006/093379 18 PCT/KR2006/000503 Claims 1. A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system, the method comprising: determining whether a periodic enhanced broadcast page is enabled or disabled; and transmitting at least one broadcast message via a first slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast page is enabled. 2. The method of claim 1, wherein the steps are executed in a single control channel. 3. The method of claim 1, wherein all of the broadcast messages to be transmitted fit within the first slot of the broadcast paging cycle. 4. The method of claim 1, wherein all of the broadcast messages to be transmitted are transmitted via-first slot of the next broadcast paging cycle, WO 2006/093379 19 PCT/KR2006/000503 5. The method of claim 1, wherein a value of BCAST_INDEX is greater than 0. 6. The method of claim 5, wherein the BCAST_INDEX is transmitted via a Multi-Carrier Radio Resource (MC-RR) parameters message. 7. A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system, the method comprising: determining whether a periodic enhanced broadcast paging is enabled or disabled; and transmitting a single broadcast message via at least one slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast paging is enabled. 8. The method of claim 7, wherein the broadcast message is transmitted beginning with a first slot of the broadcast paging cycle. WO 2006/093379 20 PCT/KR2006/000503 9. The method of claim 7, wherein a Secondary Broadcast Control Channel (S-BCCH) is disabled. 10. The method of claim 7, wherein the at least one broadcast message to be transmitted is a single message. 11. The method of claim 10, wherein size of the single message occupies more than one slot 12. The method of claim 11, wherein consecutive slots are used to transmit the single message, beginning with a first slot of the broadcast paging cycle. 13. The method of claim 7, wherein the broadcast message to be transmitted is transmitted via the first slot of the next broadcast paging cycle. 14. The method of claim 7, wherein a value of BCAST_INDEX is greater than O. WO 2006/093379 21 PCT/KR2006/000503 15. The method of claim 14, wherein the BCAST_INDEX is transmitted via a Multi-Carrier Radio Resource (MC-RR) parameters message. 16. A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system, the method comprising: determining whether a periodic enhanced broadcast paging is enabled or disabled; transmitting at least one broadcast paging message via at least one slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast paging is enabled; and transmitting at least one broadcast message in a subsequent broadcast slot according to an order of the broadcast paging message. 17. The method of claim 16, wherein the at least one broadcast paging message is an enhanced broadcast page. 18. The method of claim 17, wherein each enhanced broadcast page is associated with subsequent broadcast slots. WO 2006/093379 22 PCT/KR2006/000503 19. The method of claim 18, wherein the broadcast slots include at least one broadcast message to be transmitted. 20. The method of claim 16, wherein the broadcast slots associated with at least one broadcast paging message is determined according to a time offset specified in the broadcast paging message. 21. The method of claim 20, wherein at least one broadcast message associated with at least one broadcast paging message are transmitted after 'n' number of broadcast slots. 22. The method of claim 16, wherein the broadcast slots for a repeat of the broadcast message is specified via a time offset from the slot of a first broadcast message. 23. The method of claim 16, wherein size of broadcast message exceeds one slot size. WO 2006/093379 23 PCT/KR2006/000503 24. A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system, the method comprising: transmitting a maximum slot cycle index for providing the broadcast message to a mobile station (MS); receiving the maximum slot cycle index and determining a maximum paging cycle; transmitting at least one broadcast message included in each slot of the maximum paging cycle of the F-CCCH; and receiving the at least one broadcast message in a specified slot of the maximum paging cycle. 25. The method of claim 24, wherein the steps are executed in a single control channel. 26. The method of claim 24, wherein the maximum paging cycle is a paging channel slot cycle having a duration M slots, such that M = 21 x 16,0 ≤, i ≤ 7, where i = MAX__SLOT_CYCLE_INDEX as received in a system parameters message. WO 2006/093379 24 PCT/KR2006/000503 27. The method of claim 24, wherein the broadcast message is transmitted in a sufficient number of assigned slots on the F-CCCH. 28. The method of claim 24, wherein the broadcast message fits in a single slot. 29. The method of claim 24, wherein the broadcast message is transmitted without regard to whether a broadcast paging message is enabled or disabled. 30. The method of claim 29, wherein the broadcast paging message is a periodic enhanced broadcast page. 31. The method of claim 24, wherein the broadcast message is consecutively transmitted in M successive paging slots in the paging cycle. A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system is disclosed. More specifically, a base station determines whether a periodic enhanced broadcast page is enabled or disabled, and then transmits at least one broadcast message via a first slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast page is enabled.

Full Text

WO 2006/093379 1 PCT/KR2006/000503
A METHOD OF TRANSMITTING BROADCAST MESSAGE IN A MOBILE
COMMUNICATION SYSTEM
Technical Field
The present invention relates to a method of transmitting a broadcast message,
and more particularly, to a method of transmitting a broadcast message in a mobile
communication system.
Background Art
A broadcast message uses a data burst message to transmit data to all or
specific groups of mobile stations. At the same time, the mobile stations are in a
specified mode when receiving the broadcast message.
If the broadcast message is transmitted via a Forward Common Control
Channel (F-CCCH) and a Secondary Broadcast Control Channel (S-BCCH), control
information of the broadcast message to be transmitted in sent via the F-CCCH. For
example, the control information includes information related to whether the broadcast
message has been transmitted, and Enhanced Broadcast Page information which
indicates the location of the broadcast message transmitted on the S-BCCH.
According to the conventional method, the aforementioned broadcast message
is transmitted via the S-BCCH. More specifically, the broadcast message is not
transmitted via a Primary Broadcast Control Channel (P-BCCH), which is used to

WO 2006/093379 2 PCT/KR2006/000503
transmit an overhead message only, nor via the F-CCCH. However, the Enhanced
Broadcast Page information can be transmitted using a Multi-slot Enhance Broadcast
Paging scheme or a Periodic Enhanced Broadcast Paging scheme.
Figure 1 is an example showing the Multi-slot Enhanced Broadcast Paging
scheme. In detail, the Multi-slot Enhanced Broadcast Paging scheme is a scheme
which transmits the Enhanced Broadcast Page information during F-CCCH slots so
that all the mobile stations can receive the broadcast signal. Here, all the mobile
stations are in the slotted mode to receive the broadcast signal. As illustrated in Figure
1, if a Maximum Paging Cycle period of the F-CCCH is 16 slots, the Enhanced
Broadcast Page information can be continuously transmitted in the 16 slots.
Furthermore, the Enhanced Broadcast Page information can be received by all the
mobile stations receiving different slots on the F-CCCH.
Figure 2 is an example illustrating a Periodic Enhanced Broadcast Paging
scheme where a BCASTJNDEX is 1. In Figure 2, information on whether the
Periodic Enhanced Broadcast Paging scheme is being used can be determined by the
BCAST_INDEX of a MC-RR Parameters Message. For example, the value of the
BCASTJNDEX represent by '000' indicates that the Periodic Enhanced Broadcast
Paging scheme is not used. On the other hand, if the value of the BCASTJNDEX is
not '000,' then the Periodic Enhanced Broadcast Paging scheme having (B+7)
broadcast paging cycle period is being used. Here, the value of 'B' can be determined
according to Equation 1.

WO 2006/093379 3 PCT/KR2006/000503
[Equation 1]
B = 21+1x l6 1≤ i ≤ 7
In Equation 1, i represents a value of the BCAST_INDEX transmitted via the
MC-RR parameter message.
In Figure 2, the value of the BCAST_INDEX is '1' and when applied to
Equation 1, the value of B is 64 and the broadcast paging cycle is 71. The Enhanced
Broadcast Page information is transmitted via a first F-CCCH slot of the broadcast
paging cycle, and the Enhanced Broadcast Page information includes BCCHJNDEX
and TIME_OFFSET. Consequently, transmission locations of the SBCCH and the
broadcast message can be identified by the Enhanced Broadcast Page information.
A plurality of BCCH is classified into Broadcast Control Channel Number
(BCN). In detail, the BCN value of the P-BCCH is 1, and the BCN value of the S-
BCCH can be any number between 2-8. The broadcast message is transmitted via the
S-BCCH after 40x(l+TIME_OFFSET)ms with respect to the transmission point of the
Enhanced Broadcast Page information. Here, the BCN value of the S-BCCH is
BCCH_INDEX+1.
As described above, in order to transmit a broadcast message, Enhanced
Broadcast Page information, which provides information on whether the broadcast
message is to be transmitted and the transmission location of the broadcast message,
has to be first transmitted via the F-CCCH. Thereafter, the actual broadcast message is

WO 2006/093379 4 PCT/KR2006/000503
transmitted via the S-BCCH. However, the problem with this transmission scheme is
that the actual broadcast message cannot be transmitted via the F-CCCH.
Disclosure of the Invention
Accordingly, the present invention is directed to a method of transmitting
broadcast message in a mobile communication system that substantially obviates one
or more problems due to limitations and disadvantages of the related art.
An object of the present invention is to provide a method of transmitting a
broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless
communication system where a plurality of broadcast messages are transmitted via a
first slot of a broadcast paging cycle.
Another object of the present invention is to provide a method of transmitting a
broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless
communication system where a single broadcast message is transmitted via at least one
slot of a broadcast paging cycle.
A further object of the present invention is to provide a method of transmitting
a broadcast message using a Forward Common Control Channel (F-CCCH) in a
wireless communication system where at least one broadcast message included in each
slot of the maximum paging cycle is transmitted.
Additional advantages, objects, and features of the invention will be set forth in
part in the description which follows and in part will become apparent to those having

WO 2006/093379 5 PCT/KR2006/000503
ordinary skill in the art upon examination of the following or may be learned from
practice of the invention. The objectives and other advantages of the invention may be
realized and attained by the structure particularly pointed out in the written description
and claims hereof as well as the appended drawings.
To achieve these objects and other advantages and in accordance with the
purpose of the invention, as embodied and broadly described herein, a method of
transmitting a broadcast message using a Forward Common Control Channel (F-
CCCH) in a wireless communication system includes a base station which determines
whether a periodic enhanced broadcast page is enabled or disabled, and then transmits
at least one broadcast message via a first slot of a broadcast paging cycle of the F-
CCCH if determined that the periodic enhanced broadcast page is enabled.
In another aspect of the present invention, a base station determines whether a
periodic enhanced broadcast paging is enabled or disabled, and then transmits a single
broadcast message via at least one slot of a broadcast paging cycle of the F-CCCH if
determined that the periodic enhanced broadcast paging is enabled.
Yet, in another aspect of the present invention, a base station first determines
whether a periodic enhanced broadcast paging is enabled or disabled. Thereafter, the
base station transmits at least one broadcast paging message via at least one slot of a
broadcast paging cycle of the F-CCCH if determined that the periodic enhanced
broadcast paging is enabled, and also transmits at least one broadcast messagein a
subsequent broadcast slot according to an order of the broadcast paging message.

WO 2006/093379 6 PCT/KR2006/000503
In another aspect of the present invention, a base station transmits a maximum
slot cycle index for providing the broadcast message to a mobile station and receives
the maximum slot cycle index and determining a maximum paging cycle. Thereafter,
the base station transmits at least one broadcast message included in each slot of the
maximum paging cycle of the F-CCCH, and then receives the at least one broadcast
message in a specified slot of the maximum paging cycle.
It is to be understood that both the foregoing general description and the
following detailed description of the present invention are exemplary and explanatory
and are intended to provide further explanation of the invention as claimed.
Brief Description of Drawings
The accompanying drawings, which are included to provide a further
understanding of the invention and are incorporated in and constitute a part of this
application, illustrate embodiment(s) of the invention and together with the description
serve to explain the principle of the invention. In the drawings;
FIG. 1 is an example showing the Multi-Slot Enhanced Broadcast Paging
scheme;
FIG. 2 is an example illustrating a Periodic Enhanced Broadcast Paging scheme
where a BCAST_INDEX is 1;
FIG. 3 is an example illustrating the Multi-slot Broadcast Message transmission
scheme having a maximum paging cycle of 16 slots;

WO 2006/093379 7 PCT/KR2006/000503
FIG. 4 is an example illustrating a Periodic Enhanced Broadcast Paging
transmission scheme according to a first embodiment of the present invention;
FIG. 5 is an example illustrating a Periodic Enhanced Broadcast Paging
transmission scheme according to a second embodiment of the present invention; and
FIG. 6 is an example illustrating a Periodic Enhanced Broadcast Paging
transmission scheme according to a third embodiment of the present invention.
Best Mode for Carrying Out the Invention
Reference will now be made in detail to the preferred embodiments of the
present invention, examples of which are illustrated in the accompanying drawings.
Wherever possible, the same reference numbers will be used throughout the drawings
to refer to the same or like parts.
A mobile station (MS) has a right to know whether the S-BCCH, which is used
for transmitting a broadcast message, is supported. The MS can determine whether the
S-BCCH is supported or not based on the value of the NUM_BCCH__BCAST included
in the MC-RR parameter message. For example, if the NUM_BCCH_BCAST value is
'000,' the MS can determine that the S-BCCH is not supported, while if the
NUM_BCCH_BCAST value is not '000,' then not only can the MS can determine that
the S-BCCH is supported, but the number of the S-BCCH supported can also be
determined since the S-BCCH supported number equals the value of the
NUM_BCCH_BCAST.

WO 2006/093379 8 PCT/KR2006/000503
The present invention can be applied to cases where the NUM_BCCH_BCAST
value is '000' and as a result, does not support the S-BCCH for transmitting a
broadcast message. In situations where the S-BCCH is unsupported, two transmission
schemes can be used, namely, a Multi-slot Broadcast Message transmission scheme,
and a Periodic Enhanced Broadcast Paging transmission scheme.
Figure 3 is an example illustrating the Multi-slot Broadcast Message
transmission scheme when a maximum paging cycle is 16 slots. As illustrated in
Figure 3, the Multi-slot Enhanced Broadcast Paging scheme is a scheme which
transmits the Enhanced Broadcast Page information in the slots on the F-CCCH so that
all the mobile stations can receive the broadcast signal. Here, all the mobile stations are
in the slotted mode to receive the broadcast signal. Furthermore, the Multi-slot
Enhanced Broadcast Paging scheme can be applied to cases where the broadcast
message is transmitted via a single slot on the F-CCCH.
If a base station (BS) continuously transmits the broadcast message in 16 slots
on the F-CCCH, each MS can successfully receive the broadcast message even if each
MS in a cell receives the broadcast message via different slots on the F-CCCH.
Figure 4 is an example illustrating a Periodic Enhance Broadcast Paging
transmission scheme according to a first embodiment of the present invention. In
Figure 4, a value of the BCAST_INDEX, transmitted via a MC-RR parameter message,
is '1,' and three (3) broadcast messages are transmitted through a single slot. If
plurality of broadcast messages is transmitted via a single slot, the broadcast message

WO 2006/093379 9 PCT/KR2006/000503
can be transmitted during the first slot of the Broadcast Page Cycle. In addition, in the
present embodiment, it is unnecessary to transmit Enhanced Broadcast Page
information or put differently, information pertaining to the slot used to transmit the
broadcast message on the F-CCCH.
Figure 5 is an example illustrating a Periodic Enhanced Broadcast Paging
transmission scheme according to a second embodiment of the present invention. In
Figure 5, a value of the BCAST_INDEX, transmitted via a MC-RR parameter message,
is '1' and the length of a broadcast message occupies three (3) slots. As illustrated in
Figure 5, if there is only one broadcast message to be transmitted and the broadcast
message has to be transmitted using three slots, the broadcast message can be
transmitted using three consecutive slots, starting with a first slot. In this embodiment,
as is the case with the first embodiment, it is unnecessary to transmit Enhanced
Broadcast Page information.
Figure 6 is an example illustrating a Periodic Enhanced Broadcast Paging
transmission scheme according to a third embodiment of the present invention. In
Figure 6, a value of the BCAST_INDEX, transmitted via a MC-RR parameter message,
is '1,' and there are three broadcast messages to be transmitted. In the present
embodiment, there is at least one broadcast message to be transmitted, and the length
of each broadcast message exceeds permitted length for each slot. As illustrated in
Figure 6, in the first slot of the Broadcast Page Cycle, Enhanced Broadcast page
information which provides whether the broadcast message is transmitted as well as

WO 2006/093379 10 PCT/KR2006/000503
the location of the broadcast message on the F-CCCH is transmitted. Furthermore, the
broadcast message corresponding to each Enhanced Broadcast Page should be
transmitted after 'n' number of slots. That is, a first broadcast message corresponding
to a first Enhanced Broadcast Page is transmitted after 'n' slots, a second broadcast
message corresponding to a second Enhanced Broadcast Page is transmitted after '2n'
slots, a third broadcast message corresponding to a third Enhanced Broadcast Page is
transmitted after '3n' slots, and k-th broadcast message corresponding to k-th
Enhanced Broadcast Page is transmitted after 'k x n' slots.
Figure 6 illustrates an example where n = 7. In Figure 6, since there are three
broadcast messages to be transmitted and n = 7, the first broadcast message
corresponding to the first Enhanced Broadcast Page is transmitted after 7 slots, the
second broadcast message corresponding to the first Enhanced Broadcast Page is
transmitted after 14 slots, the third broadcast message corresponding to the third
Enhanced Broadcast Page is transmitted after 21 slots, and so forth.
The Enhanced Broadcast Page information can be transmitted via a General
Page Message (GPM) or an Universal Page Message (UPM). The following Table 1 is
an example of a GPM format according to the present invention.
(Table 1]
GPM Common Fields:

Field Length (bits)
CONFIG_MSG_SEQ 6

WO 2006/093379 11 PCT/KR2006/000503

ACC_MSG_SEQ 6
CLASS_0_DONE 1
CLASS_1_DONE 1
TMSI_DONE 1
ORDERED_TMSIS 1
BROADCAST_DONE 1
RESERVED 4
ADD_LENGTH 3
ADD_PFIELD 8 x ADD_LENGTH
PDU Format for a mobile station-addressed page:

Field Length (bits)
SERVICE_OPTION 0 or l6
PDU Format for broadcast Page: There is no Layer 3 field associated with this
record.
PDU Format for an enhanced broadcast page when NUM_BCCH_BCAST #
'000':

Field Length (bits)
BCCH_INDEX 3
TIME-OFFSET 10
REPEAT_TIME_OFFSET 0 or 5
ADD_BCAST_RECORD 0 or 8 x EXT_BCAST_SDU_LENGTH
PDU Format for an enhanced broadcast page when NUM_BCCH_BCAST =
'000': There are no Layer % fields associated with this record.
Table 2 is an example of a UPM format according to the present invention.

WO 2006/093379 12 PCT/KR2006/000503
[Table 2]
UPM Common Field:

Field Length (bits)
CONFIG_MSG_SEQ 6
ACC_MSG_SEQ 6
READ_NEXT__SLOT 1
READ_NEXT_SLOT_BCAST 1
PDU Format for a mobile station-addressed page:

Field Length (bits)
SERVICE_OPTION O or 16
ADD_MS_RECORD 0 or *x EXT_BCAST_SDU LENGTH
PDU Format for a mobile station-directed message announcement: There are
no Layer 3 fields associated with this record.
PDU Format for an enhanced broadcasts page when NUM_BCCH_BCAST #
'000':

Field Length (bits)
BCCH_INDEX 3
TIME-OFFSET 10
REPEAT_TIME_OFFSET O or 5
ADD_BCAST_RECORD 0 or 8 x EXT_BCAST_SDU_LENGTH
PDU Format for an enhanced broadcast page when NUM_BCCH_BCAST =
'000': There are no Layer 3 fields associated with this record.

WO 2006/093379 13 PCT/KR2006/000503
As shown in Tables 1 and 2, when the value of NUM_BCCH_BCAST is not
'000,' the S-BCCH exists to transmit the broadcast message, and therefore,
information associated with received via the S-BCCH is transmitted. On the contrary,
if the value of NUM_BCCH_BCAST is '000,' there is no S-BCCH by which to
transmit the broadcast message. As such, the broadcast message is transmitted via the
B-CCCH, and it is unnecessary to transmit information pertaining to the broadcast
information.
Table 3 is another example of a GPM format according to the present invention.
[Table 3]
GPM Common Fields:

Field Length (bits)
CONFIG_MSG_SEQ 6
ACC_MSG_SEQ 6
CLASS_0_DONE 1
CIASS_1_DONE 1
TMSI_DONE 1
ORDERED_MSIS 1
BROADCAST_DONE 1
RESERVED 4
ADD_LENGTH 3
ADD_PFIELD 8 x ADD_LENGTH
PDU Format for a mobile station-addressed page:

Field Length (bits)

WO 2006/093379 14 PCT/KR2006/000503

SERVICE_OPTION 0 or l6
PDU Format for broadcast Page: There is no Layer 3 field associated with this
record.
PDU Format for an enhanced broadcast page:

Field Length (bits)
BCCH_INDEX 3
TIME-OFFSET 10
REPEAT_TIME_OFFSET 0 or 5
ADD_BCAST_RECORD 0 or 8 x EXT_BCAST_SDU_LENGTH
A field corresponding to 'PDU Format for an enhanced broadcast page' in
Table 3 can include different information depending on whether the S-BCCH is '
supported. In other words, different information can be included depending on whether
the value of NUM_BCCH_BCAST is '000' or not For example, if the value of
NUM_BCCH_BCAST is not '000,' the BS sets the value of the field corresponding to
'PDU Format for an enhanced broadcast page' to a valid value depending on the
transmission format of the broadcast message. At the same time, the MS uses the valid
value transmitted from the BS to receive the broadcast message.
Alternatively, if the value of NUM_BCCH_BCAST is '000,' the BS can set the
value of the field corresponding to 'PDU Format for an enhanced broadcast page' as an
unused value or an insignificant default value. In such a case, the MS determines that
the value of the field is an invalid value and therefore does not use the value to receive
the broadcast message.

WO 2006/093379 15 PCT/KR2006/000503
For example, if NUM_BCCH_BCAST value is '000,' the BS can set the value
of the BCCH_INDEX as currently unused value. At the same time, the BS can set the
value o TIME_OFFSET to be an insignificant value such as '0000000000.' In addition,
the value of ihe REPEAT_TIME_OFFSET and the value of ADD_BCAST_SDU
_LENGTH can be excluded by setting the value of
EXT_BCAST_SDU_LENGTH_IND to '00.'
Table 4 is another example of a UPM according the present invention.
[Table 4]
UPM Common Field:

Field Length (bits)
CONFIG_MSG_SEQ 6
ACC_MSG_SEQ 6
READ_NEXT_SLOT 1
READ_NEXT_SLOT_BCAST 1
PDU Format for a mobile station-addressed page:

Field Length (bits)
SERVICE_OPTION O or
ADD_MS_RECORD Oor *x EXT_BCAST_SDU_ LENGTH
PDU Format for a mobile station-directed message announcement: There are
no Layer 3 fields associated with this record.
PDU Format for an enhanced broadcasts page:

Field Length (bits)

WO 2006/093379 16 PCT/KR2006/000503

BCCH_INDEX 3
TIME-OFFSET 10
REPEAT_TIME_OFFSET 0 or 5
ADD_BCAST_RECORD 0 or 8 x EXT_BCAST_SDU_LENGTH
A field corresponding to 'PDU Format for an enhanced broadcast page' in
Table 4 can include different information depending on whether the S-BCCH is
supported. In other words, different information can be included depending on whether
the value of NUM_BCCH_BCAST is '000' or not. For example, if the value of
NUM_BCCH_BCAST is not '000/ the BS sets the value of the field corresponding to
'PDU Format for an enhanced broadcast page' to a valid value depending on the
transmission format of the broadcast message. At the same time, the MS uses the valid
value transmitted from the BS to receive the broadcast message.
Alternatively, if the value of NUM_BCCH_BCAST is '000,' the BS can set the
value of the field corresponding to 'PDU Format for an enhanced broadcast page' as an
unused value or an insignificant default value. In such a case, the MS determines that
the value of the field is an invalid value and therefore does not use the value to receive
the broadcast message.
For example, if NUM_BCCH_BCAST value is '000,' the BS can set the value
of the BCCH_INDEX as currently unused value. At the same time, the BS can set the
value o TIME_OFFSET to be an insignificant value such as '0000000000.' In addition,
the value of the REPEAT_TIME_OFFSET and the value of ADD_BCAST_SDU

WO 2006/093379 17 PCT/KR2006/000503
_LENGTH can be excluded by setting the value of
EXT_BCAST_SDU_LENGTHJND to '00.'
With respect to the enhanced broadcast page scheme, if the same broadcast
message or the same enhanced broadcast page information is to be re-transmitted, the
initially transmitted broadcast message or the enhanced broadcast page information
should be re-transmitted after a specified time period from the initially transmitted time.
For example, the re-transmission should take place within (4 x (B+7)) slots of the
initial transmission.
It will be apparent to those skilled in the art that various modifications and
variations can be made in the present invention without departing from the spirit or
scope of the inventions. Thus, it is intended that the present invention covers the
modifications and variations of this invention provided they come within the scope of
the appended claims and their equivalents.

WO 2006/093379 18 PCT/KR2006/000503
Claims
1. A method of transmitting a broadcast message using a Forward
Common Control Channel (F-CCCH) in a wireless communication system, the method
comprising:
determining whether a periodic enhanced broadcast page is enabled or
disabled; and
transmitting at least one broadcast message via a first slot of a broadcast
paging cycle of the F-CCCH if determined that the periodic enhanced broadcast page
is enabled.
2. The method of claim 1, wherein the steps are executed in a single
control channel.
3. The method of claim 1, wherein all of the broadcast messages to be
transmitted fit within the first slot of the broadcast paging cycle.
4. The method of claim 1, wherein all of the broadcast messages to be
transmitted are transmitted via-first slot of the next broadcast paging cycle,

WO 2006/093379 19 PCT/KR2006/000503
5. The method of claim 1, wherein a value of BCAST_INDEX is greater
than 0.
6. The method of claim 5, wherein the BCAST_INDEX is transmitted via
a Multi-Carrier Radio Resource (MC-RR) parameters message.
7. A method of transmitting a broadcast message using a Forward
Common Control Channel (F-CCCH) in a wireless communication system, the method
comprising:
determining whether a periodic enhanced broadcast paging is enabled or
disabled; and
transmitting a single broadcast message via at least one slot of a
broadcast paging cycle of the F-CCCH if determined that the periodic enhanced
broadcast paging is enabled.
8. The method of claim 7, wherein the broadcast message is transmitted
beginning with a first slot of the broadcast paging cycle.

WO 2006/093379 20 PCT/KR2006/000503
9. The method of claim 7, wherein a Secondary Broadcast Control
Channel (S-BCCH) is disabled.
10. The method of claim 7, wherein the at least one broadcast message to be
transmitted is a single message.
11. The method of claim 10, wherein size of the single message occupies
more than one slot
12. The method of claim 11, wherein consecutive slots are used to transmit
the single message, beginning with a first slot of the broadcast paging cycle.
13. The method of claim 7, wherein the broadcast message to be transmitted
is transmitted via the first slot of the next broadcast paging cycle.
14. The method of claim 7, wherein a value of BCAST_INDEX is greater
than O.

WO 2006/093379 21 PCT/KR2006/000503
15. The method of claim 14, wherein the BCAST_INDEX is transmitted
via a Multi-Carrier Radio Resource (MC-RR) parameters message.
16. A method of transmitting a broadcast message using a Forward
Common Control Channel (F-CCCH) in a wireless communication system, the method
comprising:
determining whether a periodic enhanced broadcast paging is enabled or
disabled;
transmitting at least one broadcast paging message via at least one slot
of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced
broadcast paging is enabled; and
transmitting at least one broadcast message in a subsequent broadcast
slot according to an order of the broadcast paging message.
17. The method of claim 16, wherein the at least one broadcast paging
message is an enhanced broadcast page.
18. The method of claim 17, wherein each enhanced broadcast page is
associated with subsequent broadcast slots.

WO 2006/093379 22 PCT/KR2006/000503
19. The method of claim 18, wherein the broadcast slots include at least one
broadcast message to be transmitted.
20. The method of claim 16, wherein the broadcast slots associated with at
least one broadcast paging message is determined according to a time offset specified
in the broadcast paging message.
21. The method of claim 20, wherein at least one broadcast message
associated with at least one broadcast paging message are transmitted after 'n' number
of broadcast slots.
22. The method of claim 16, wherein the broadcast slots for a repeat of the
broadcast message is specified via a time offset from the slot of a first broadcast
message.
23. The method of claim 16, wherein size of broadcast message exceeds
one slot size.

WO 2006/093379 23 PCT/KR2006/000503
24. A method of transmitting a broadcast message using a Forward
Common Control Channel (F-CCCH) in a wireless communication system, the method
comprising:
transmitting a maximum slot cycle index for providing the broadcast
message to a mobile station (MS);
receiving the maximum slot cycle index and determining a maximum
paging cycle;
transmitting at least one broadcast message included in each slot of the
maximum paging cycle of the F-CCCH; and
receiving the at least one broadcast message in a specified slot of the
maximum paging cycle.
25. The method of claim 24, wherein the steps are executed in a single
control channel.
26. The method of claim 24, wherein the maximum paging cycle is a
paging channel slot cycle having a duration M slots, such that M = 21 x 16,0 ≤, i ≤ 7,
where i = MAX__SLOT_CYCLE_INDEX as received in a system parameters message.

WO 2006/093379 24 PCT/KR2006/000503
27. The method of claim 24, wherein the broadcast message is transmitted
in a sufficient number of assigned slots on the F-CCCH.
28. The method of claim 24, wherein the broadcast message fits in a single
slot.
29. The method of claim 24, wherein the broadcast message is transmitted
without regard to whether a broadcast paging message is enabled or disabled.
30. The method of claim 29, wherein the broadcast paging message is a
periodic enhanced broadcast page.
31. The method of claim 24, wherein the broadcast message is
consecutively transmitted in M successive paging slots in the paging cycle.

A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless
communication system is disclosed. More specifically, a base station determines whether a periodic enhanced broadcast page is
enabled or disabled, and then transmits at least one broadcast message via a first slot of a broadcast paging cycle of the F-CCCH if
determined that the periodic enhanced broadcast page is enabled.

Documents:

http://ipindiaonline.gov.in/patentsearch/GrantedSearch/viewdoc.aspx?id=G4icnh9pQiTm7J60sdgAqw==&loc=wDBSZCsAt7zoiVrqcFJsRw==

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Patent Number

271463

Indian Patent Application Number

3231/KOLNP/2007

PG Journal Number

09/2016

Publication Date

26-Feb-2016

Grant Date

22-Feb-2016

Date of Filing

03-Sep-2007

Name of Patentee

LG ELECTRONICS INC.

Applicant Address

20, YOIDO-DONG, YOUNGDUNGPO-GU, SEOUL

Inventors:

#	Inventor's Name	Inventor's Address
1	KIM YOUNG JUN	303, 398-17, ANYANG 8-DONG, MANAN-GU,, ANYANG-SI, GYEONGGI-DO 430-018
2	AN JONG HOE	1305-808, SINSIGAJI APT., 13 DANJI, SINJEONG 6 (YUK)-DONG,, YANGCHEON-GU, SEOUL 158-773
3	KYUNG CHAN HO	7/8, 994-45, HOGYE 1(IL)-DONG, DONGAN-GU,, ANYANG-SI, GYEONGGI-DO 431-081

PCT International Classification Number

H04Q 7/20

PCT International Application Number

PCT/KR2006/000503

PCT International Filing date

2006-02-13

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	102005-0025582	2005-03-28	Republic of Korea
2	102005-0031736	2005-04-16	Republic of Korea
3	102005-0017442	2005-03-02	Republic of Korea