| US 7,573,841 B2 | ||
| Method for transmitting traffic indication message in wireless communication system, base station thereof, method for receiving the same, terminal thereof and message structure thereof | ||
| Kang-Gyu Lee, Yongin-si (Korea, Republic of); Yun-Sung Kim, Yongin-si (Korea, Republic of); Jin-A Kim, Seoul (Korea, Republic of); and Sung-Wook Park, Yongin-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd, (Korea, Republic of) | ||
| Filed on Jun. 20, 2005, as Appl. No. 11/156,833. | ||
| Claims priority of application No. 10-2004-0045894 (KR), filed on Jun. 19, 2004. | ||
| Prior Publication US 2006/0009267 A1, Jan. 12, 2006 | ||
| Int. Cl. G08C 17/00 (2006.01); H04H 20/71 (2008.01) | ||
| U.S. Cl. 370—311 [370/312] | 32 Claims |
| 1. A system for transmitting a traffic indication (MOB_TRF-IND) message in a Broadband Wireless Access communication system,
comprising:
a Base Station (BS) for transmitting the MOB_TRF-IND message including a sleep mode ID (SLPID) Group Indication Bitmap and
a Traffic Indication Bitmap,
wherein the SLPID Group Indication Bitmap includes N SLPID Group Indication bits, each of the N SLPID Group Indication bits
corresponding to each of N SLPID groups, and the N SLPID groups are generated by grouping N*M SLPIDs,
wherein each of the N SLPID Group Indication bits indicates that there is no traffic for M Mobile Stations (MSs) mapped to
M SLPIDs included in a corresponding SLPID group or that there is traffic for at least one of the M MSs mapped to the M SLPIDs
included in the corresponding SLPID group,
wherein the Traffic Indication Bitmap includes multiples of an M-bit long Traffic Indication unit, the M-bit long Traffic
Indication unit being added to the MOB_TRF-IND message when an SLPID Group Indication bit indicates that there is traffic
for at least one MS among the M MSs mapped to the M SLPIDs included in an SLPID Group, the M-bit long Traffic Indication unit
including M bits, each of the M bits corresponds to each of the M MSs mapped to the M SLPIDs included in the SLPID Group,
each of the M bits indicating a negative indication that indicates that there is no traffic directed to a corresponding MS
or a positive indication indicates that there is traffic directed to the corresponding MS, and
wherein an SLPID of an MS is uniquely assigned by the BS when the MS is instructed to enter a sleep mode.
|