Invention Grant
- Patent Title: Communications methods and apparatus related to synchronization with respect to a peer to peer timing structure
- Patent Title (中): 与对等定时结构的同步相关的通信方法和装置
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Application No.: US11774176Application Date: 2007-07-06
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Publication No.: US08599823B2Publication Date: 2013-12-03
- Inventor: Rajiv Laroia , Junyi Li , Aleksandar Jovicic , Thomas Richardson , Xinzhou Wu
- Applicant: Rajiv Laroia , Junyi Li , Aleksandar Jovicic , Thomas Richardson , Xinzhou Wu
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent James K. O'Hare
- Main IPC: H04J3/06
- IPC: H04J3/06 ; H04W4/00 ; H04W68/00 ; H04L12/43 ; H04B7/00

Abstract:
Methods and apparatus related to peer to peer communication networks are described. A peer to peer timing structure is implemented which includes recurring peer discovery intervals and traffic intervals. Some embodiments further include recurring paging intervals for peer to peer pages. A wireless communications device, supporting peer to peer communications and storing information defining the timing structure, determines a time reference point, facilitating a coarse level of synchronization with respect to the timing structure. The time reference point is determined based on a broadcast signal received from a communications device, e.g., a satellite, base station, or beacon signal transmitter. Multiple peer to peer wireless communications devices in a local vicinity thus obtain the same basic understanding as to the current relative point in time with respect to a common recurring peer to peer timing structure. Peer to peer timing synchronization is further refined based on received signals communicated between peers.
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