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Multimedia broadcast/multicast service special carrier frequency cell networking method and system

A multimedia broadcasting and cell group technology, applied in the transmission system, communication between multiple stations, electrical components, etc., can solve the problems of mutual interference between adjacent cells and UE's inability to achieve downlink synchronization

Inactive Publication Date: 2009-05-13
ZTE CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a networking method and system for a dedicated carrier frequency cell for multimedia broadcast / multicast services, and to solve the problem of mutual interference between adjacent cells caused by the basic preamble pair of fixed MS time slots, thereby causing UE Unable to realize the problem of downlink synchronization

Method used

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  • Multimedia broadcast/multicast service special carrier frequency cell networking method and system
  • Multimedia broadcast/multicast service special carrier frequency cell networking method and system
  • Multimedia broadcast/multicast service special carrier frequency cell networking method and system

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Embodiment

[0036] The multimedia broadcast / multicast service MBMS system of this embodiment includes a plurality of MBMS dedicated carrier frequency cells, and the network side equipment of each MBMS dedicated carrier frequency cell includes:

[0037] The configuration module is used to configure a code pair different from the basic preamble code pair configured in its adjacent cell. The scrambling codes corresponding to each pair of basic preamble code pairs are different from each other, and the basic preamble configured for other service time slots Code pairs are different from MS slots. If the configured basic preamble code pair corresponds to a scrambling code, use the code configured on the MS time slot to scramble the corresponding scrambling code for the data part of the MS time slot of the MBMS dedicated carrier frequency cell; When each basic preamble code in the above configured basic preamble code pair corresponds to a scrambling code, the data part of the MS time slot in the...

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Abstract

A networking method of dedicated carrier frequency subdistrict of multimedia broadcast / multipoint transmission service and system thereof, the method comprises steps of: defining a plurality of basic lead codes and corresponding scramblers for a special time slot of a MBMS dedicated subdistrict; configuring a code pair different from the basic lead code configured for adjacent subdistrict for a network side device of each MBMS dedicated subdistrict, then sending the basic lead code in the basic lead code pair and data scrambled according to corresponding scrambler on time slot of a wireless sub frame of the subdistrict. The system is characterized in that the network side device of each MBMS dedicated subdistrict comprises a configuration module and a sending module. The method of the invention provides downlink synchronization and subdistrict search functions for the MBMS dedicated subdistrict as well as avoids mutual interference of adjacent subdistricts which causes a problem to realize the downlink synchronization.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method and system for forming a network of dedicated carrier frequency cells for MBMS (Multimedia Broadcast / Multicast Service, Multimedia Broadcast / Multicast Service). Background technique [0002] Now people's demand for mobile communication is no longer satisfied with telephone and message services. With the rapid development of the Internet, a large number of multimedia services have emerged. For some of these application services, multiple users can receive the same data at the same time, such as video on demand, TV broadcasting, video conferencing, online education, and interactive games. MBMS technology is proposed to realize the most effective use of mobile network resources. It refers to a point-to-multipoint service in which one data source sends data to multiple users, and realizes network resource sharing, including mobile core network and access network resource ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/18H04B1/707H04B7/26
Inventor 艾建勋
Owner ZTE CORP
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