公开(公告)号：WO2013074193A1

公开(公告)日：2013-05-23

申请号：PCT/US2012/055252

申请日：2012-09-13

Applicant: QUALCOMM Incorporated ,  HOMCHAUDHURI, Sandip ,  NAGARAJAN, Vinod ,  RAJAGOPALAN, Anand ,  JAYARAMAN, Arunkumar ,  ZHU, Yi ,  JIA, Zhanfeng

Inventor： HOMCHAUDHURI, Sandip ,  NAGARAJAN, Vinod ,  RAJAGOPALAN, Anand ,  JAYARAMAN, Arunkumar ,  ZHU, Yi ,  JIA, Zhanfeng

IPC: H04W52/02 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W52/0206 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0222 ,  H04W52/0258 ,  H04W52/0277 ,  H04W74/006 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

Abstract: A method of saving power in a wireless network can include determining a plurality of stations associated with an AP. The AP can create station groups using group selection logic. Notably, the group selection logic is transparent to the plurality of stations. A plurality of TIMs can then be sent, each TIM allowing only one station group access to a channel during a predetermined time interval, such as a beacon interval. In another method, a station can determine its sleep duration based on at least one of first information from the TIM to generate random sleep duration, second information regarding previous operation of the station, and third information regarding a status of the station. The first, second, and third information can include the number of stations associated with the AP and having buffered data based on the TIM, historical collisions, and power status.

Abstract translation: 在无线网络中节省功率的方法可以包括确定与AP相关联的多个站。 AP可以使用组选择逻辑创建站组。 值得注意的是，组选择逻辑对于多个站是透明的。 然后可以发送多个TIM，每个TIM在预定时间间隔（例如信标间隔）期间仅允许一个站组访问信道。 在另一种方法中，站可以基于来自TIM的第一信息中的至少一个来确定其睡眠持续时间以产生随机睡眠持续时间，关于站的先前操作的第二信息以及关于站的状态的第三信息。 第一，第二和第三信息可以包括与AP相关联的站的数量，并且具有基于TIM，历史冲突和电力状态的缓冲数据。