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Method, apparatus and base station for frequency resource allocation

A technology of frequency resources and allocation methods, applied in frequency diversity, diversity/multi-antenna systems, network planning, etc., can solve the problems affecting system performance, frame transmission frame error rate changes, and inability to match channel state changes, etc. The effect of improving performance

Active Publication Date: 2009-07-08
HUAWEI TECH CO LTD
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  • Summary
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Problems solved by technology

[0005] In the process of implementing the present invention, the inventor found that the prior art has the following defects: the statically allocated subcarrier set can bring a certain frequency diversity gain, but this The static allocation method of the seed carrier cannot match the dynamic user channel state changes. When the channel state changes, the frame transmission error rate will also change, which will affect the system performance.

Method used

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  • Method, apparatus and base station for frequency resource allocation
  • Method, apparatus and base station for frequency resource allocation
  • Method, apparatus and base station for frequency resource allocation

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Embodiment Construction

[0019] The degree of frequency diversity described in the embodiments of the present invention refers to the number of sub-channels, sub-carriers or sub-carrier sets with non-correlated channel characteristics allocated to the terminal. The sub-carriers in the embodiments of the present invention may also be sub-channels. In addition, the frame error rate in the embodiments of the present invention may also be the packet error rate. The replacement of the above technical terms will not affect the technical solutions themselves. These equivalent technical solutions are all within the scope of the claims.

[0020] The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:

[0021] figure 1 It is a flowchart of a frequency resource allocation method according to an embodiment of the present invention. Such as figure 1 As shown, the method mainly includes:

[0022] S101. Acquire the degree of frequency diversity requ...

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Abstract

The embodiment of the invention provides a frequency resource deployment method, a device and a base station. The method comprises the following procedures: obtaining the frequency diversity degree necessary for terminals; deploying component channel or subcarrier for the terminals according to the frequency diversity degree necessary for terminals. The frequency resource deployment method, the device and the base station provided by the invention deploys component channel or subcarrier according to the frequency diversity degree necessary for terminals through making use of the frequency diversity degree necessary for terminals, which allows the frequency diversity to be more effective, thus raising the property of the system.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a frequency resource allocation method, device and base station. Background technique [0002] OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) is currently known as a communication system with the highest spectrum utilization rate. It organically combines digital modulation, digital signal processing, multi-carrier transmission and other technologies. Spectrum utilization, power utilization, and system complexity are highly competitive, and it is one of the main technologies to support future mobile communications, especially mobile multimedia communications. [0003] When using OFDM as a cellular communication system, multi-user multiple access naturally adopts the OFDMA method, that is, assigning different subcarriers to different users. Due to the independence of channel fading among users, the multi-user di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10H04W72/04H04B7/12H04L1/00
Inventor 刘坚能陈斌
Owner HUAWEI TECH CO LTD
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