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Method for flexibly supporting asymmetric service of multiple carrier time division duplex mobiole communication system

A mobile communication system and time-division duplexing technology, applied in wireless communication, network planning, electrical components, etc., can solve problems such as asymmetric uplink and downlink service flexibility restrictions, increase cost and complexity, improve system efficiency and Capacity, efficiency of use and effect of capacity

Active Publication Date: 2008-03-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the existing multi-carrier base station, since multiple carriers use the same transceiver, the uplink and downlink conversion must be performed simultaneously, and if the adjacent cells in the planning area use the same carrier frequency (the basic requirement of the CDMA system), In order to avoid interference to the greatest extent, adjacent cells usually require frame synchronization and use the same ratio of uplink and downlink time slot configurations, which limits the flexibility of the system to support asymmetric uplink and downlink services.

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  • Method for flexibly supporting asymmetric service of multiple carrier time division duplex mobiole communication system
  • Method for flexibly supporting asymmetric service of multiple carrier time division duplex mobiole communication system
  • Method for flexibly supporting asymmetric service of multiple carrier time division duplex mobiole communication system

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Embodiment Construction

[0038] Taking the TD-SCDMA system as an example, the present invention illustrates how different carriers and different uplink and downlink switching points are used to support asymmetric services when the multi-carrier base station of the time division duplex system is working, which not only avoids mutual interference, but also improves system efficiency as much as possible. resource allocation method.

[0039] The core of the method of the invention is to make the uplink and downlink conversion time of a certain carrier in multiple carriers different from the uplink and downlink conversion time of other carriers in the multi-carrier time division duplex mobile communication system.

[0040] In the multi-carrier time-division duplex mobile communication system, a sector with multiple carriers and the same or nearly the same coverage area is regarded as a cell. In this cell, a carrier will be selected as the main carrier, and all common channels, such as the downlink pilot ti...

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Abstract

A method to support dissymmetry service for multicarrier time division duplexing mobile communication system, which contains adopting different uplink and downlink time gap conversion point to support dissymmetry service among multicarrier frequency of different cells and same cell, when the original configured uplink and downlink time gap ratio can not support the service request, then changing the time gap ratio to receiving said request, adjusting service to avoid interference by quick dynamic channel distribution technology, in ending request service, changing time gap ratio in original ratio. Said invention supports different uplink and downlink time gap conversion point, the base station equipment needs establishing isolated uplink and downlink.

Description

technical field [0001] The present invention relates to time-division duplex mobile communication technology, more precisely to a multi-carrier time-division duplex mobile communication system, in which different carriers of a cell or a base station use different uplink and downlink switching points to flexibly support asymmetric services. Background technique [0002] In the current standards of the time division duplex (TDD) communication mode of the third generation mobile communication (refer to the relevant technical specifications of 3GPP), only the working mode of a single carrier is specified. In order to meet the communication needs in a high-density application environment, the base station should be designed to work with multiple carriers. Based on this idea, the "multi-carrier time division duplex mobile communication system" is designed. The wireless base station adopts a multi-carrier working mode and can be used in a cell. Multiple carriers, such as three carr...

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Application Information

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IPC IPC(8): H04Q7/36H04W72/04
CPCH04W72/087H04W72/082H04W72/0446H04W72/0433H04W72/29H04W72/543H04W72/541H04W16/24
Inventor 李世鹤杨贵亮胡金玲
Owner DATANG MOBILE COMM EQUIP CO LTD