Tuesday, September 02, 2014 9:44:23 AM
Wang September 2, 2014
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Method and apparatus for providing multi-rate broadcast services
Abstract
A method and apparatus for providing multi-rate broadcast services in a wireless communication system are disclosed. The present invention takes advantage of the higher capacity of better channels by providing a certain data rate common to all users, while sending additional information to users with better channel conditions. A base station transmits a broadcast message including common information at a basic rate and additional information at a rate higher than the basic rate. The basic rate guarantees successful receipt by all WTRUs in a coverage area and the rate for the additional information is set such that only certain WTRUs with a channel condition above a threshold may decode the additional information successfully. The WTRU decodes the common information and subtracts the common information from received signals to decode the additional information. The additional information may be information supplementing the common information, such as video information.
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Inventors: Wang; Jin (Central Islip, NY)
Applicant: Name City State Country Type
Wang; Jin
Central Islip
NY
US
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Family ID: 1000000657580
Appl. No.: 11/321,664
Filed: December 29, 2005
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Prior Publication Data
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Document Identifier Publication Date
US 20060227732 A1 Oct 12, 2006
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
60667808 Apr 1, 2005
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Current U.S. Class: 455/522 ; 370/312; 370/332; 370/465; 455/69
Current CPC Class: H04W 52/24 (20130101); H04W 52/50 (20130101); H04W 36/30 (20130101); H04W 36/18 (20130101); H04L 1/0003 (20130101)
Current International Class: H04B 7/00 (20060101)
Field of Search: ;370/348,329,341,346,312,318,338,332,333,331,464,465 ;375/240 ;455/522,517,39,500,69,443,422.1,436
PPP
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