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Service data transmission method, communication system, base station and user device

A technology of business data and user equipment, which is applied in the field of communication, can solve the problem that the reliability of the last two bits cannot be improved, and achieve the effect of balanced reliability

Inactive Publication Date: 2012-07-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when 16QAM modulation is used in MBMS services, when each cell modulates the same MBMS service data, constellation mapping is performed according to the input sequence of the service data. Then, in each cell, the first two bits in each group of input bits The reliability of each bit is higher than the reliability of the last two bits. In this way, when the UE obtains the data, even if it receives data transmitted by multiple adjacent cells at the same time, it cannot improve the last two bits in each group of input bits. The reliability of how to balance the reliability of each bit in each group of data is a problem that those skilled in the art hope to solve

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  • Service data transmission method, communication system, base station and user device
  • Service data transmission method, communication system, base station and user device
  • Service data transmission method, communication system, base station and user device

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Embodiment Construction

[0031] In the embodiment of the present invention, in two or more adjacent cells using different constellation versions, constellation reorganization and modulation are performed on multimedia broadcast or multicast service MBMS data respectively according to corresponding constellation versions, and the service data is synchronous transmission;

[0032] The user equipment receives the data transmitted by at least two of the above-mentioned cells, performs constellation recombination on the received data, and performs joint decoding.

[0033] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0034]In this embodiment, each cell transmitting MBMS data may adopt a different CV (Constellation version, constellation version), and some of the cells transmitting MBMS data may adopt a different CV. E.g:

[0035] method one

[0036] In method 1, when the downlink public channel is used to transmit MBMS based on poin...

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Abstract

The invention relates to the communication field, in particular to a business data transmitting method, a communication system, a base station, and a server device for balancing the reliability of each bit in the transmitted MBMS data. In two or more than two adjacent districts adopting different constellation editions of the invention, the constellation restructuring and modulation are implemented on the data of multimedia broadcast or multicast business MBMS according to the corresponding constellation editions, and the business data is synchronously transmitted; data transmitted by at least two districts are received by the UE; the unite decoding is implemented on the received data according to the carried constellation edition after the resolution constellation combination. By adopting the technical scheme of the invention, the reliability of each bit in the transmitted MBMS data can be balanced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a service data transmission method, a communication system, a base station and user equipment. Background technique [0002] Among various mobile packet services, including video on demand, TV broadcasting, video conferencing, online education, interactive games and other services, a main feature is that multiple users who subscribe to the service receive the same data at the same time, and this service and general data In contrast, it often has the characteristics of many concurrent users, large data volume, long duration, and delay sensitivity. Apparently, it is very inefficient to use the ordinary point-to-point transmission method for this kind of business, which is very inefficient for the resource-short mobile communication network. Therefore, 3GPP (Third Generation Partnership Project) introduces MBMS (Multimedia Broadcast Multicast Service, multimedia broadcast and mult...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/04H04L12/16
Inventor 刘晟余荣道
Owner HUAWEI TECH CO LTD