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Method and system for realizing space division multiplexing of multi-carrier-wave high speed downlink packet access

A space-division multiplexing and multi-carrier technology, which is applied in multi-frequency code systems, and prevents/detects errors through diversity reception, can solve the problem of low system throughput, save code resources, reduce interference, and improve cell throughput volume effect

Inactive Publication Date: 2013-05-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a method and system for realizing multi-carrier high-speed downlink packet access space division multiplexing, so as to solve the problem of low system throughput in the prior art

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  • Method and system for realizing space division multiplexing of multi-carrier-wave high speed downlink packet access
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  • Method and system for realizing space division multiplexing of multi-carrier-wave high speed downlink packet access

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Embodiment Construction

[0019] In view of the foregoing problems in the prior art, the embodiment of the present invention provides a method for realizing multi-carrier high-speed downlink packet access space division multiplexing to improve the throughput of the TD-SCDMA system. The main idea of ​​this method is: when multiple (including two) user terminals (indicated by UE in the following) are in different channels, the same carrier, and the isolation between the two is greater than the set isolation threshold, the Multiple UEs meet the space division multiplexing conditions, and use the same code resource to transmit data to the multiple UEs, thereby improving cell throughput; when the UE's space division characteristics are changed due to the movement of the UE, the original satisfaction is When the space division multiplexing conditions do not meet the space division multiplexing conditions between UEs, the same code resources are used to transmit data between UEs on different channels, the same ...

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Abstract

The invention discloses a method and system for realizing space division multiplexing of multi-carrier-wave high speed downlink packet access, which are used for solving the problem of lower throughput of a network system in the prior art. The method comprises the following steps of: when the set detection time arrives and the space division characteristic between a target user terminal and otheruser terminals is detected to change, determining a plurality of second user terminals on the same channel and carrier wave with the target user terminal, and regulating the target user terminal and the second user terminals to different carrier waves on the same channel; determining a plurality of third user terminals being on different channels and different carrier waves and having an isolation exceeding an isolation threshold with the target user terminal, determining each third user terminal as a user terminal for space division multiplexing by the target user terminal, and transmitting the data of the target user terminal and each third user terminal by adopting a same code resource. By adopting the technical scheme of the invention, the throughput of the system is increased.

Description

Technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and system for realizing multi-carrier high-speed downlink packet access space division multiplexing. Background technique [0002] At present, with the continuous increase of data users and the increasing demand for high-speed data services, the throughput and spectrum efficiency of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) systems may become As the bottleneck restricting the in-depth development of data services, how to improve the throughput of the TD-SCDMA system has become a concern currently. [0003] The throughput and spectrum efficiency of the TD-SCDMA system are limited by the code channel. Improving the utilization efficiency of the code channel is the key to improving the throughput and spectrum efficiency of the TD-SCDMA system; therefore, the most important method is to introduce in the TD-SCDMA system. HSDPA (High Speed ​​Do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04L1/06
Inventor 赵黎波姬舒平范鹏刘学斌
Owner ZTE CORP