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Method and apparatus for enhancing receiving performance of multimedia broadcast multicast service

A technology for multimedia broadcasting and multicasting services, which is applied in the field of improving the receiving performance of multimedia broadcasting and multicasting services, and can solve problems such as difficult implementation

Inactive Publication Date: 2012-05-30
TD TECH COMM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for cells belonging to different RNCs, it is not easy to ensure that the MBMS contents of all base stations are synchronized

Method used

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  • Method and apparatus for enhancing receiving performance of multimedia broadcast multicast service
  • Method and apparatus for enhancing receiving performance of multimedia broadcast multicast service
  • Method and apparatus for enhancing receiving performance of multimedia broadcast multicast service

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0102] figure 1 The flow chart of improving the MBMS reception performance on the RNC edge coverage area provided by Embodiment 1 of the present invention, such as figure 1 As shown, the specific steps are as follows:

[0103] Step 101: Allocate in advance the same dedicated scrambling code / intermediate code for transmitting MBMS services to each cell under the same RNC, and assign different dedicated scrambling codes / intermediate codes for transmitting MBMS services to cells belonging to different RNCs , allocate the same carrier frequency and time slot for transmitting MBMS services to all RNCs.

[0104] Allocating different dedicated scrambling codes / midamble codes for transmitting MBNS services to cells belonging to different RNCs will reduce the interference between MBMS signals of adjacent cells in the RNC edge coverage area.

[0105] Step 102: When a target UE with a multi-cell joint detection (MCJD) function initiates an MBMS service request, broadcast channel (BCH...

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Abstract

The invention discloses a method for improving MBMS receiving property and a device thereof. A user device UE receives an MBMS data block, which is decoded, and the decoded MBMS data blocks from every RNC are obtained; the deviation among the MBMS data blocks from every RNC is detected and the MBMS data blocks from every RNC are merged according to the deviation. The invention ensures that UE in coverage areas on the edge of different RNCs can detect matching MBMS contents from every RNC under the condition that the MBMS service transmitted in different RNCs cannot ensure content synchronization, and the matching MBMS contents are merged to restore the best MBMS content, thus improving MBMS property in the coverage areas on the edge of RNC.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a method and a device for improving the receiving performance of multimedia broadcast multicast services. Background technique [0002] With the development of mobile communication systems, more and more attractive services appear, for example: Multimedia Broadcasting Multicast Service (MBMS, Multimedia Broadcasting Multicast Service). The MBMS service has the following characteristics: the service is broadcast in the entire cell; the same service is broadcast in each cell of the same network; high data rate, etc. [0003] A higher data rate requires a higher receiving signal-to-noise ratio. However, due to the limitation of downlink transmission power, the coverage area of ​​MBMS services is much smaller than that of the broadcast control channel (BCCH, Broadcast Control Channel). Moreover, the higher the MBMS data rate, the MBMS The coverage area is smaller. In ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26
Inventor 李克薛强杨小倩
Owner TD TECH COMM TECH LTD