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Method and device for allocating PDCCH resources

A resource allocation and resource technology, applied in the field of communication, can solve the problems that edge users cannot receive DCI correctly and the performance of edge users on the PDCCH channel is degraded, etc.

Active Publication Date: 2010-09-01
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of multiple cells, inter-cell interference leads to the performance degradation of edge users on the PDCCH channel, and even causes some edge users to fail to receive DCI correctly. Most edge users can only ensure their reliability by using larger-sized CCEs.

Method used

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  • Method and device for allocating PDCCH resources
  • Method and device for allocating PDCCH resources
  • Method and device for allocating PDCCH resources

Examples

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Embodiment Construction

[0064] The core idea of ​​the present invention is: divide the PDCCH resource into multiple control channel element CCE sets, and configure the primary CCE set and secondary CCE set for the cell according to the multiple divided CCE sets, and allocate the primary CCE set resources to the cell edge users, Allocate secondary CCE set resources to cell center users.

[0065] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0066] Embodiment 1 of the present invention provides a method for PDCCH resource allocation, which is applied in a communicati...

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PUM

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Abstract

The invention discloses a method and a device for allocating PDCCH resources, which is used in a communication system comprising a plurality of cells and allocates PDCCH resources for cell edge users or cell center users in the cells. The method comprises the following steps: dividing PDCCH resources into a plurality of control channel unit CCE sets; configuring main CCE sets and subsidiary CCE sets for the cells based on the CCE sets; and allocating the resources of the main CCE sets to the cell edge users, and allocating the resources of the subsidiary CCE sets to the cell center users. The invention improves the carrying capacity of the PDCCH channel transmission, ensures the reliability of the PDCCH transmission for the edge users, and meets the QoS requirements of the users.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for allocating PDCCH resources. Background technique [0002] 3GPP LTE (Long Term Evolution, long-term evolution) system is a long-term evolution version of 3G (3rd Generation, third-generation mobile communication technology). The LTE system provides higher user peak data rates, greater coverage and better Cell edge user QoS (Quality of Service, quality of service), etc. [0003] In the LTE system, by using OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access technology) in the downlink direction, SC-FDMA (Single Carrier-Frequency Division Multiple Access, single carrier frequency division multiple access), and in addition, the LTE system also adopts MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) technology of multi-antenna technology to provide spatial multiplexing gain and...

Claims

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Application Information

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IPC IPC(8): H04W52/14H04W52/24H04W52/26H04W72/04
Inventor 彭木根李莉杨常青王文博
Owner COMBA TELECOM SYST CHINA LTD
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