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Multi-carrier-wave TDD system channel distribution method

A channel allocation and multi-carrier technology, which is applied in the field of resource allocation in mobile communications, can solve the problems of multi-carrier systems that have no flexible channel resource allocation methods, limit high-speed data transmission, and cannot send data to users, so as to improve the utilization of carrier resources rate, high throughput, high speed effect

Inactive Publication Date: 2007-01-10
SHANGHAI ULTIMATE POWER COMM TECH
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AI Technical Summary

Problems solved by technology

[0004] The existing multi-carrier system is a system with N frequency points in one sector, that is, the resources on multiple carriers in one sector in the system are uniformly scheduled, and the traffic channel of each user terminal UE can only be allocated on one carrier , cannot send data for one user on multiple carriers at the same time
The defect of the existing technology is: because the user terminal can only occupy the channel resources on one carrier, thus limiting the transmission of high-speed data; furthermore, the existing multi-carrier system does not have a flexible channel resource allocation method

Method used

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Embodiment Construction

[0015] The core idea of ​​the present invention is: in multi-carrier TDD, channel resources on multiple carriers can be used for information transmission of the same user at the same time; at the same time, for each user, uplink and downlink channels (including dedicated and shared channels) allocation, and the network end preferentially allocates channel resources in the second direction to the terminal on the carrier where the channel resources in the first direction acquired by the terminal are located; the number of uplink and downlink carriers occupied by each user may not be equal, thereby ensuring Both the carrier and the time slot can support the allocation scheme provided for the asymmetrical business.

[0016] The above idea is specifically as follows: the network side determines the currently available channel resources on each carrier, including channel resources in the uplink direction and channel resources in the downlink direction; centrally schedules the channel...

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Abstract

The disclosed method for allocating channels in multicarrier time division duplexing system includes steps: (1) network side determines current available channel resources including channel resources in up direction and channel resources in down direction on each carrier; (2) network side allocates first directional channel resources in the said channel resources for determined terminal; (3) network side allocates second directional channel resources in the said channel resources for determined terminal in preference on the carrier, where the terminal obtain first directional channel resources. Advantages are: flexible mode for allocating channel resources, supporting high speed and high throughput, supporting asymmetric transmission between up going and down going in larger range, and raised use ratio of frequency band in system.

Description

technical field [0001] The invention relates to resource allocation technology in mobile communication, in particular to a multi-carrier time division duplex (TDD) system channel allocation method. Background technique [0002] Compared with the first-generation and second-generation mobile communication systems, the third-generation mobile communication system greatly meets the needs of users for multimedia and high-data-rate mobile communication services, and data services gradually occupy the third-generation mobile communication. leading position. With the development of the Internet and information society, especially the emergence of a new generation of Internet based on IPv6, complex network and multimedia services (such as multi-user games, real-time messages, online shopping, personal / public database access, and movie downloads, etc.) Application requirements make packet data services be applied as the main form of data services. These large-capacity data put forw...

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Application Information

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IPC IPC(8): H04L5/26
Inventor 王映民孙韶辉杨贵亮
Owner SHANGHAI ULTIMATE POWER COMM TECH
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