| US 7,603,147 B2 | ||
| System and method for periodic ranging in a sleep mode in a BWA communication system | ||
| Yeong-Moon Son, Anyang-si (Korea, Republic of); Chang-Hoi Koo, Seongnam-si (Korea, Republic of); Jung-Je Son, Seongnam-si (Korea, Republic of); Hyoung-Kyu Lim, Seoul (Korea, Republic of); Hyun-Jeong Kang, Seoul (Korea, Republic of); So-Hyun Kim, Suwon-si (Korea, Republic of); and Sung-Jin Lee, Suwon-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd, (Korea, Republic of) | ||
| Filed on May 09, 2005, as Appl. No. 11/125,278. | ||
| Claims priority of application No. 10-2004-0032156 (KR), filed on May 07, 2004. | ||
| Prior Publication US 2005/0266896 A1, Dec. 01, 2005 | ||
| Int. Cl. H04B 1/38 (2006.01); H04B 7/00 (2006.01) | ||
| U.S. Cl. 455—574 [455/522; 455/127.4; 455/127.5] | 19 Claims |
| 1. A method for performing a periodic ranging by a receiver in a sleep mode of a wireless communication system, the method
comprising the steps of:
receiving a sleep mode transition message to transit into a sleep mode, the sleep mode transition message including first
information relating to a timing point at which the periodic ranging is performed;
transiting to the sleep mode in response to the sleep mode transition message; and
performing the periodic ranging at a timing point corresponding to the first information after transiting to the sleep mode,
wherein the first information indicates an offset of a frame in which the periodic ranging will be performed with respect
to a frame where the sleep mode transition message is transmitted.
|