Invention Grant
- Patent Title: Apparatus and method for use in the multicast of traffic data in wireless multiple access communications systems
- Patent Title (中): 用于无线多址通信系统中的业务数据组播中的装置和方法
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Application No.: US10957192Application Date: 2004-10-01
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Publication No.: US07386320B2Publication Date: 2008-06-10
- Inventor: Rajiv Laroia , Junyi Li , Sathyadev Venkata Uppala
- Applicant: Rajiv Laroia , Junyi Li , Sathyadev Venkata Uppala
- Applicant Address: US NJ Murray Hill
- Assignee: Lucent Technologies Inc.
- Current Assignee: Lucent Technologies Inc.
- Current Assignee Address: US NJ Murray Hill
- Main IPC: H04Q7/20
- IPC: H04Q7/20 ; H04B7/00 ; H04M3/42

Abstract:
In a wireless communications system, multicast messages are transported to groups of wireless terminals by employing a common control channel to transmit a multicast paging message indicating that multicast traffic data is to be transmitted to a particular group of wireless terminals. In an embodiment of the invention, the essential information transmitted in the common control channel is the identifier of the group of wireless terminals intended to receive the multicast traffic data and the location of a traffic channel on which the multicast traffic is to be transported in a channel resource which may include a representation of bandwidth and time interval. In accordance with an aspect of the invention, the common control channel is associated with a traffic channel in a prescribed fixed manner. Further, the traffic channel used for the purpose of multicast can be the same traffic channel used for the normal point-to-point transmission of traffic data.
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