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Method for realizing multi broadcasting service

A multicast service and multicast group technology, applied in broadcast service distribution, error prevention/detection using return channel, digital transmission system, etc. The effect of reducing transmit power, saving wireless resources, and large dynamic range

Inactive Publication Date: 2007-10-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when the number of users is not particularly large, and these users are distributed in places with good channel conditions, it is a waste of wireless resources
And due to the limitation of the downlink public physical channel rate, it is not yet possible to realize high-speed multicast services

Method used

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  • Method for realizing multi broadcasting service
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Embodiment Construction

[0062] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0063] For a UE receiving a multicast service, it is necessary to register and subscribe to the multicast service first, and store the registered service information in the service center (BM-SC, Broadcast-Multicast Service Center) of the broadcast-multicast service as authentication basis. For example, the MBMS service center needs to save the service information of all users who register for the MBMS service.

[0064] Furthermore, in order to implement multicast services on the HSDPA channel, the RNC also assigns the same UE ID to all UEs in the same cell and in the same multicast group according to the service information registered by the UE to ensure that the same multicast All UEs in the broadcast group can receive and demodulate the registered m...

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Abstract

A method of realizing multicast service includes confirming initial emitting parameter and transmitting parameter of multicast service before Node B sends data , sending transmission parameter to all UE in multicast set and sending multicast service data according to emitting parameter by Node B , receiving multicast service data according to transmission parameter and generating ACK / NACK information being up - sent to Node B as per received service data by each UE in multicast set , regulating emission parameter of multicast service by Node B according to correct receiving response / error receiving response information up - sent from UE .

Description

technical field [0001] The invention relates to the technical field of wideband code division multiple access (WCDMA), in particular to a method for realizing multicast service in the WCDMA system. Background technique [0002] Among the technical standards of the third generation mobile communication, WCDMA dominated by Europe, Code Division Multiple Access (CDMA) dominated by the United States, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) of China are the three mainstream technologies. [0003] The current WCDMA standard can provide the highest data transmission rate of 2Mbit / s, support high-speed packet switching and circuit switching, and can provide many Internet-based services. However, for services with asymmetric uplink and downlink data, such as downloading or streaming media, the system needs to provide a higher transmission rate and less delay. In order to meet this requirement, WCDMA has improved the air interface and introduced HSDPA t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/22H04L12/56H04L1/18H04W4/06H04L45/16
Inventor 胡军
Owner HUAWEI TECH CO LTD