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Method and device for frequency allocation of relay system

A relay system and frequency allocation technology, applied in electrical components, wireless communication, network planning, etc., can solve the problems of inflexible adjustment of frequency resource allocation and unreasonable utilization of relay system frequency resources, etc., and achieve reasonable utilization effect

Inactive Publication Date: 2010-06-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the current frequency allocation method of the relay system, after the frequency allocation is completed, all frequency resource distributions are pre-allocated and cannot be adjusted flexibly. However, in practical applications, the random distribution of RS positions often occurs in the relay system. , changes in the number of RSs or changes in the traffic volume of RSs, etc., and the frequency allocation method of the existing relay system cannot flexibly adjust the frequency resource allocation of the relay system in the above cases, resulting in the unreasonable utilization of the frequency resources of the relay system

Method used

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  • Method and device for frequency allocation of relay system
  • Method and device for frequency allocation of relay system
  • Method and device for frequency allocation of relay system

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Embodiment 1

[0046] Such as Figure 5 As shown, the embodiment of the present invention also provides a frequency allocation method of a relay system. The allocation method is executed by a base station. The method specifically includes the following steps:

[0047] 501. When there is a new relay station in the relay system, the relay station completes the initial network access through the access channel. For example, there is a specific channel for access in 802.16j, and RS can complete access on this channel In the process, the newly added relay station can be determined as the target relay station.

[0048] 502. After the access of the relay station is completed, the base station directly allocates new frequency resources to the relay station according to the acquired information such as the location and traffic volume of the target relay station, so that the target relay station uses the new frequency resources to provide services to users .

[0049] Above Figure 5 After the initial access...

Embodiment 2

[0064] Such as Figure 8 As shown, the embodiment of the present invention also provides a frequency allocation method for a relay system. The allocation method is executed by a base station. The method specifically includes the following steps:

[0065] 801. When there is a newly added relay station in the relay system, the relay station completes the initial network access through the access channel, and determines the newly added relay station as the target relay station. For example, there is a specific channel in 802.16j for connection. RS can complete the access process on this channel.

[0066] 802. For the relay station that has just accessed, the base station obtains the signal strength of all surrounding neighbor relay stations detected by the relay station and reported by the target relay station.

[0067] 803. Determine whether there is mutual interference between the neighbor relay station and the target relay station within a predetermined threshold; if there is mutual ...

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Abstract

The invention discloses a method and a device for the frequency allocation of a relay system, relating to wireless communication system and solving the problem that the current relay system fails to allocate frequency resources to relay stations reasonably. The allocation method according to the embodiment of the invention comprises the steps: determining a target relay station requiring resource allocation; allocating frequency resources to the target relay station according to the utilization condition of frequency resources in the relay system, wherein the frequency resources are used for the target relay station and terminals the target relay station serves. The device according to the embodiment of the invention comprises: a determination unit for determining the target relay station requiring resource allocation; an allocation unit for allocating frequency resources to the target relay station according to the utilization condition of frequency resources in the relay system, wherein the frequency resources are used for the target relay station and terminals the target relay station serves. The method and the system are mainly used in base stations of the relay system.

Description

Technical field [0001] The present invention relates to a wireless communication system, and in particular to a method and device for frequency allocation in a relay system provided with a relay station. Background technique [0002] The wireless communication system generally adopts a cellular network structure. If all mobile terminals (MS) and base stations (BS) in the cellular network communicate directly, it is called a single-hop network; if some mobile terminals in the cellular network need to pass The relay station (RS) communicates with the base station, which is called a multi-hop network, also called a relay system. Among them, a single-hop network includes two endpoints, a BS and an MS, and a relay system includes a BS, an MS, and an RS, and the BS can support multi-hop relay. [0003] In cellular networks, frequency reuse is generally used to improve the spectrum utilization of the communication system. For single-hop networks, since the communication frequencies used ...

Claims

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Application Information

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IPC IPC(8): H04W16/10H04W72/08
Inventor 张亮亮曾云宝李婷
Owner HUAWEI TECH CO LTD
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