Invention Grant
- Patent Title: Coding methods and apparatus for broadcast channels
- Patent Title (中): 广播频道的编码方法和装置
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Application No.: US12640336Application Date: 2009-12-17
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Publication No.: US08995356B2Publication Date: 2015-03-31
- Inventor: Xinzhou Wu , Cyril Measson , Nilesh Khude , Junyi Li
- Applicant: Xinzhou Wu , Cyril Measson , Nilesh Khude , Junyi Li
- 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: H04W4/00
- IPC: H04W4/00 ; H04W28/02 ; H04L1/00

Abstract:
Methods and apparatus related to selecting and/or using different coding methods for a broadcast channel are described. The coding method to be used is selected as a function of an estimated level of congestion. Various methods and apparatus are well suited for use in peer to peer wireless communications systems including broadcast peer discovery channels. A wireless communications device, e.g., a mobile terminal supporting peer to peer signaling, detects peer discovery signals from other devices and estimates a level of congestion. The wireless communications device selects one of a plurality of alternative coding methods as a function of the estimated level of congestion. Two different coding methods which may be used, in some embodiments, vary in at least one of: coding rate, convolution code used, and amount of resources used. The wireless device transmits information indicating the selected coding method and coded peer discovery data in accordance with the selected coding method.
Public/Granted literature
- US20110087768A1 CODING METHODS AND APPARATUS FOR BROADCAST CHANNELS Public/Granted day:2011-04-14
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