Invention Grant
- Patent Title: Methods and apparatus for efficient digital broadcast signaling in a wireless communications system
- Patent Title (中): 无线通信系统中有效的数字广播信令的方法和装置
-
Application No.: US11369899Application Date: 2006-03-07
-
Publication No.: US07990840B2Publication Date: 2011-08-02
- Inventor: Rajiv Laroia , Arnab Das , Junyi Li
- Applicant: Rajiv Laroia , Arnab Das , Junyi Li
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Raphael Freiwirth
- Main IPC: H04J11/00
- IPC: H04J11/00 ; H04J1/00 ; H04W4/00

Abstract:
First and second transmitters transmit signals communicating the same information, e.g., program segment, but at different times. Different carriers may, but need not be, used by the different transmitters. If a wireless terminal can not recover broadcast segment information from one carrier, the wireless terminal can switch to another transmitter and recover the information, e.g., on another carrier, since the broadcasts are intentionally offset in time. In some embodiments, the timing is offset such that a single channel receiver is able to recover signals corresponding to the same program segment from two sources, and perform a decoding and information recovery using input from both sources, where recovery using input from a single source is not possible. Symbol level timing synchronization of base stations is not required thereby allowing for simpler implementations and/or lower overhead, as compared to systems which require base stations to be synchronized to the symbol timing level.
Public/Granted literature
- US20060223520A1 Methods and apparatus for efficient digital broadcast signaling in a wireless communications system Public/Granted day:2006-10-05
Information query