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Wireless resource allocation of multi-carrier telecommunication system

A multi-carrier communication and wireless resource technology, applied in the field of wireless resource allocation, can solve the problems of data transmission failure, user terminal does not support wireless resource allocation scheme, etc., to achieve the effect of improving downlink data transmission rate

Active Publication Date: 2009-12-02
DATANG MOBILE COMM EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a radio resource allocation method for a multi-carrier communication system to solve the problem that the user terminal does not support the radio resource configuration scheme when the network side allocates resources to the user terminal in the prior art, thus Cause subsequent data transmission failure and other consequences

Method used

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  • Wireless resource allocation of multi-carrier telecommunication system

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] Signals of different code channels in the same time slot interfere with each other when they arrive at a receiver of a user terminal, and this interference belongs to multiple access interference (MAI). For the signals of the same code channel, when these signals arrive at the receiver of the user terminal at different times through multiple propagation paths, there is interference between the signals arriving at different times. This interference is called inter-symbol interference (ISI) . Joint detection technique is used to eliminate MAI and ISI. If a downlink time slot uses SF16, there are at most 16 SF16 code channels in the time slot that can be allocated to one or more users; if a downlink time slot uses SF1, there is a maximum of 1 code channel in the time slot Code lanes for SF1 are available for allocation. Obviously, for the method of SF1, since ...

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Abstract

The method comprises: the terminal reports its downlink access capacity to the network side; the downlink access capacity comprises the downlink time slot number M maximally supported by each sub-frame and the carrier number N supported by terminal. According to the following principal the network side allocates the downlink code channel resources for the terminal: all code channels of SF16 are allocated to one carrier, and the code channel resources of SF1 are allocated to each carrier.

Description

technical field [0001] The present invention relates to the communication field, in particular to a radio resource allocation method of a multi-carrier communication system. Background technique [0002] In an existing communication system, resources are usually allocated to user terminals on one carrier in one cell. That is, all time slots allocated to a user terminal in a cell and the corresponding code channel resources in the time slots must all be on the same carrier. Taking TD-SCDMA as an example, a subframe includes 7 time slots TS0-TS6, and each time slot has 16 code channels with spreading factor 16 (SF=16) or 1 code channel with spreading factor 1 ( SF=1) code channels are available for allocation. [0003] The total radio resources allocated to one user terminal are limited. For downlink, since TS0 is a downlink time slot for broadcasting system information, it is usually not allocated to user terminals as service resources, so the network side sets at most 5 t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/02H04L27/26H04J13/00H04W72/04
Inventor 马继鹏
Owner DATANG MOBILE COMM EQUIP CO LTD