Resource allocation method and device

A resource allocation and resource technology, applied in the field of communication, can solve the problems of high implementation complexity, achieve the effects of reducing complexity, ensuring QoS and system spectrum resource utilization efficiency, and being easy to implement

Active Publication Date: 2012-03-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the implementation complexity of the current type2 resource allocation algorithm is too high, which is not conducive to the implementation in the device

Method used

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  • Resource allocation method and device

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Embodiment Construction

[0020] Embodiments of the present invention provide a resource allocation method and device for reducing the complexity of allocating downlink shared channel resources.

[0021] In the localized resource mapping method, since the allocated PRBs are continuous, in this case, when performing frequency selective scheduling, in addition to considering factors such as the channel quality of the user on each PRB, the continuity of resources also needs to be considered constraints imposed by sexual requirements on resource allocation. Therefore, the embodiment of the present invention proposes a resource allocation scheme of type 2 for the downlink shared channel. According to the data transmission requirements of the UE, PRB resource pre-allocation is completed in each PRB segment composed of consecutive PRBs, and by comparing The data carrying capacity and average CQI of the pre-allocated PRB resources corresponding to each PRB segment make the final resource allocation result. Th...

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Abstract

The invention discloses a resource allocation method and a device, which are used for lowering the complexity in allocation of downlink shared channel resources. The resource allocation method provided by the invention comprises the following steps of: determining physical resource block (PRB) segments consisting of continuous PRBs; selecting a subband with a highest channel quality indicator (CQI) for each PRB segment, and determining PRB resources preallocated for user equipments (UEs) according to the subbands with the highest CQIs; and comparing the PRB resources preallocated for the UEs corresponding to each PRB segment, and determining PRB resources allocated for the UEs.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a resource allocation method and device. Background technique [0002] The Long Term Evolution (LTE, Long Term Evolution) system is a mixed service system in which data services are the mainstay and multiple services coexist. In order to better meet the business quality of service (QoS, Quality of Service) requirements of various businesses and efficiently use spectrum resources, the LTE system introduces a shared channel mechanism to realize the dynamic resource allocation of each user and each business in the system. Resource Sharing. [0003] The maximum system bandwidth that the LTE system can support is 20MHz. In order to better support the broadband system, the downlink of the LTE system adopts Orthogonal Frequency Division Multiple Access (OFDMA, Orthogonal Frequency Division Multiple Access), which divides the entire broadband frequency selective channel...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/08
Inventor 胡奕朱志球李楠
Owner DATANG MOBILE COMM EQUIP CO LTD
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