公开(公告)号：US20130121221A1

公开(公告)日：2013-05-16

申请号：US13612730

申请日：2012-09-12

Applicant: Sandip HomChaudhuri ,  Vinod Nagarajan ,  Anand Rajagopalan ,  Arunkumar Jayaraman ,  Yi Zhu ,  Zhanfeng Jia

Inventor： Sandip HomChaudhuri ,  Vinod Nagarajan ,  Anand Rajagopalan ,  Arunkumar Jayaraman ,  Yi Zhu ,  Zhanfeng Jia

IPC: H04W52/02

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。

公开(公告)号：US07761122B2

公开(公告)日：2010-07-20

申请号：US11647709

申请日：2006-12-29

Applicant: Sandip HomChaudhuri

Inventor： Sandip HomChaudhuri

IPC: H04M1/00

CPC classification number: H04W52/0245 ,  H04W48/16 ,  H04W52/0216 ,  H04W64/00 ,  Y02D70/1222 ,  Y02D70/24

Abstract: Disclosed is a system for improving the overall battery life of a GSM device according to an optimization mechanism for suspending neighbor-cell scanning in a GSM wireless communication system, the system having a wireless device including: (a) a Central Processing Unit (CPU) executing software programs intended to comply with GSM protocol specifications; (b) an RF transmission unit and an RF reception unit functioning either independently or as a single unit; (c) a specialized Digital Signal Processor being able to process received signal at a corresponding receiving antenna and offering estimates of the received signal level and quality; (d) a logic process by which the mobile terminal powers off an RF module thereof for a definite period of time and wakes up at a pre-determined interval to listen to paging messages transmitted thereto; and (e) firmware/software performing neighbor cell monitoring in compliance with a protocol mandated by GSM standards.

Abstract translation: 公开了一种用于根据用于在GSM无线通信系统中暂停相邻小区扫描的优化机制来改善GSM设备的总体电池寿命的系统，该系统具有无线设备，该无线设备包括：（a）中央处理单元（CPU） 执行旨在符合GSM协议规范的软件程序; （b）RF传输单元和RF接收单元独立地或作为单个单元工作; （c）专用数字信号处理器能够在相应的接收天线处理接收信号并提供对接收信号电平和质量的估计; （d）一个逻辑过程，通过该过程，移动终端在一定时间段内关闭其RF模块，并以预定的时间间隔唤醒，以监听发送到其上的寻呼消息; 和（e）根据GSM标准规定的协议执行相邻小区监视的固件/软件。