Multicast service subline data transmission method and device

A multicast service and downlink data technology, applied in the direction of selection device, broadcast service distribution, code division multiplexing system, etc., can solve the problems of limited capacity, reduce the capacity of PTT users, and limit the number of users, so as to improve the PTT User capacity and the effect of saving air interface frequency resources
CN100353772CInactive Publication Date: 2007-12-05HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2007-12-05
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

This invention discloses a down data transmission method for multicast business used to TDM-CDMA system, which comprises mainly: predetermining mapping relation between the special business channel for user device in group and one down physical channel; carrying the multicast business for user device in group by one down physical channel according to mapping relation and broadcasting one multicast business to every user device. Besides, the invention also discloses a corresponding down transmission device. this invention solves the resource share problem and saves resource.
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Description

technical field

[0001] The present invention relates to multicast technology, more specifically, the present invention relates to a kind of method that is applied to the multicast service data transmission in Time Division Multiplex Code Division Multiple Access system (TD-SCDMA, Time Division-Synchronization Code Division Multiple Access) system and device. Background technique

[0002] At present, mobile communication has developed to the third generation of mobile communication (3G, Third Generation). , one of the three main standards for third-generation mobile communications recognized by The 3rdGeneration Partnership Project. As a 3G standard of time-division multiplexing, TD-SCDMA is regarded as a time-division multiplexing technical solution with a low chip rate (1.28MCps, 1.28 megachips / second) in the ITU standard.

[0003] With the gradual maturity of TD-SCDMA technology, the traditional trunking communication system can also be applied in the 3G mobile system ba...

Claims

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