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Method, device and system for implementing soft switch

A soft handover, serving cell technology, applied in electrical components, wireless communication and other directions, can solve the problems of waste of assignment messages, only receive separately, increase the burden of mobile terminals, etc., to improve QoS, reduce processing burden, and reduce assignment effect of overhead

Inactive Publication Date: 2010-05-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, since the scrambling codes of each cell in the serving cell group are different, the resources occupied by the assignment messages may also be different, so these assignment messages containing the same content and sent to the mobile terminal cannot be recognized by the mobile terminal. Combined reception, the mobile terminal can only receive these assigned messages separately
Obviously, each cell in the serving cell group sends an assignment message with the same content to the mobile terminal, which is a waste of assignment message overhead; at the same time, the mobile terminal needs to receive the assignment message from each cell in the serving cell group separately , also increases the unnecessary burden on the mobile terminal

Method used

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  • Method, device and system for implementing soft switch
  • Method, device and system for implementing soft switch
  • Method, device and system for implementing soft switch

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Experimental program
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specific Embodiment

[0045] In the first specific embodiment, a specifically used manner is determined through a preset agreement between the network side and the mobile terminal.

[0046] The system explains in the protocol how the active set of cells is grouped. Since there is only one method, both the network side and the mobile terminal use this grouping method to group cells without inconsistency and misunderstanding. Also because there is only one way, there is no need to notify and transmit between the network and the mobile terminal.

[0047] In the second specific embodiment, the network sends a message to the mobile terminal to determine a specifically used manner. The message may include all messages that the network side can send to the mobile terminal, such as:

[0048] The network side broadcasts system messages in the manner specifically used by the network side and the mobile terminal; or,

[0049] The network side sends a cell active set assignment message to the mobile terminal...

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Abstract

The invention relates to a soft-switch method, device and system realized in a wireless communication system, the method includes the following steps: service cell group messages are reported to a network side by a mobile terminal, and the service cell messages with the best signal quality in the service cell messages are reported to the network side by the mobile terminal. After the service cellmessages and the service cell messages with the best signal quality are received by the network side, the service cell messages with the best signal quality carry out a transmission of an uplink and downlink channel allocation messages. All the cells in the service cell group carry out a transmission of the downlink service data and a receiving and a combination of the uplink service data. Thereby, unnecessary allocation cost is reduced, and process burdens of the mobile terminal are also reduced, and service qualities of the mobile terminal are improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, device and system for realizing soft handover in a wireless communication system. Background technique [0002] The research and development of wireless communication system is one of the hot spots of communication technology at present. In a wireless communication system, an inevitable requirement is that a mobile terminal moves between networks using the same wireless technology and between networks using different wireless technologies. Handover is a fundamental approach to address various mobility needs. [0003] According to the nature of handover, handover is generally divided into soft handover and hard handover. Soft handover is a handover method that connects first and then disconnects, that is, the mobile terminal first establishes contact with the target base station, and then disconnects from the original base station; hard handover ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/18H04W36/26
Inventor 吴勇
Owner HUAWEI TECH CO LTD