Combination testing method for shared frequency broadcasting/multicasting

A joint detection and co-frequency broadcasting technology, applied in diversity/multi-antenna systems, space transmit diversity, electrical components, etc., can solve the problems of low detection performance, reduce interference, ensure system resource utilization, and improve detection performance Effect

Active Publication Date: 2007-01-31
SHANGHAI ULTIMATE POWER COMM TECH
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Problems solved by technology

[0006] The purpose of the present invention is to provide a joint detection method for co-frequency broadcast / multicast, to overcome the shortcoming of low detection performance of existing detection methods, reduce the interference intensity between adjacent cells of the same frequency, and improve the system reception performance

Method used

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  • Combination testing method for shared frequency broadcasting/multicasting
  • Combination testing method for shared frequency broadcasting/multicasting
  • Combination testing method for shared frequency broadcasting/multicasting

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no. 1 example

[0097] refer to figure 2 , figure 2 The implementation process of the first embodiment of the method of the present invention is shown, including the following steps:

[0098] Step 201: According to the measurement of each co-frequency adjacent cell, select an adjacent cell for macro-diversity combining.

[0099] Firstly, the configuration information and the broadcast / multicast time slot information of each co-frequency neighboring cell are obtained by measuring the public wireless channel of each co-frequency neighboring cell or through an air interface high-level message. The configuration information of the same-frequency adjacent cell includes the cell identity of the base station of the adjacent cell, the physical code channel used by broadcast / multicast, and the like. Then, according to the cell identity of the same-frequency adjacent cell base station, the downlink pilot signal of each same-frequency adjacent cell base station is received, and the signal is measure...

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Abstract

The invention discloses a combined detecting method for same-frequency broadcast / multicast, selecting adjacent villages to make macro diversity mergence by measuring all adjacent same-frequency villages; obtaining broadcast / multicast signals of local village and selected adjacent villages and making multi-village channel estimation on them and obtaining their channel response results; according to the channel response result of each village, calculating transmission matrix of each village and merging them, using the merged transmission matrix to make combined detection, then making diversity mergence on the detection results and obtaining the detected data. And it can largely improve receiving performance of same-frequency broadcast / multicast service.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a joint detection method for same-frequency broadcast / multicast. Background technique [0002] With the rapid development of mobile communication technology and Intemet (Internet) technology, multimedia communication technology has been developed rapidly. Some of the application services, such as video on demand, TV broadcast, video conferencing, online education, interactive games, etc., multiple users need Receive the same data at the same time. Compared with general service data, these mobile multimedia service data have the characteristics of large data volume and long duration. In order to effectively utilize mobile network resources, the global standardization organization 3GPP proposes MBMS (broadcast and multicast) services. MBMS refers to a point-to-multipoint service in which one data source sends data to multiple users to realize network resource sharing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/707H04B1/7105H04B7/08H04L25/02
Inventor 王映民任世岩胡金玲
Owner SHANGHAI ULTIMATE POWER COMM TECH
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