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A single-frequency network and method for broadcast information transmission

A technology of broadcasting information and single frequency network, applied in the field of mobile communication to achieve the effect of improving performance and expanding range

Inactive Publication Date: 2011-06-29
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a single frequency network and its method of sending broadcast information, which is used to solve the problem that UE receiving signal performance is obvious at the sector edge of the same base station in the existing SFN Lowering the problem

Method used

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  • A single-frequency network and method for broadcast information transmission
  • A single-frequency network and method for broadcast information transmission
  • A single-frequency network and method for broadcast information transmission

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Embodiment Construction

[0036] UE20 also includes: a merging module 200 .

[0037] The combining module 200 is configured to directly combine received signals containing the same channel estimation code and scrambled broadcast information with the same scrambling code as multipath signals.

[0038] image 3 It is a schematic flow diagram for realizing the method of the present invention. like image 3 Shown, the inventive method comprises the following steps:

[0039] Step 300, group the sectors of the single frequency network, and divide the sectors of the same base station into different groups.

[0040]Step 301 , the base station sends a signal including channel estimation code and broadcast information scrambled by using a scrambling code to the coverage area of ​​each sector included in the base station.

[0041] Wherein, the signals of sectors in the same group contain the same channel estimation code and the broadcast information scrambled by using the same scrambling code, and the signals...

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Abstract

The invention discloses a method for sending the broadcast information in a single frequency network, which is characterized in that the method comprises the steps that: A. the sectors of the single frequency network are set in groups and the sectors of the same base station are specified in different groups; B. the scrambling codes and the channel estimation codes which are different from each other are allocated for various groups of sectors; and C. the various sectors send the signal containing the channel estimation codes and the broadcast information after going through the scrambling processing adopting the scrambling codes into the coverage area. The problem that the performance of receiving the signal by UE at the sector margin of the same base station in the single frequency network is obviously lowered is solved by the invention. The invention also discloses a single frequency network.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a single frequency network and a method for sending broadcast information. Background technique [0002] With the rapid development of mobile communications and interconnection networks, a large number of mobile multimedia services have emerged, some of which require multiple user equipment (UE) to receive the same data at the same time, such as video on demand, TV broadcasting, video conferencing, online Educational, interactive games, etc. Compared with general data, these mobile multimedia services have the characteristics of large data volume and long duration. In order to effectively utilize mobile network resources, the Global Organization for Standardization (3GPP) proposed a broadcast and multicast service (MBMS: Multimedia Broadcast / Multicast Service). MBMS refers to a point-to-multipoint service in which one data source sends data to multiple UEs, thus R...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7115H04B7/04H04W4/06H04W72/04
Inventor 丁昱王映民杨家军毕海毛磊杨君云
Owner CHINA ACAD OF TELECOMM TECH
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