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Method and device for resource allocation

A resource configuration and resource allocation technology, applied in the field of wireless communication, can solve the problems of PDSCH scheduling restrictions, restrict PDSCH type 2 and type 0 scheduling, etc., and achieve the effect of reasonable allocation

Active Publication Date: 2013-10-23
HUAWEI TECH CO LTD
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Problems solved by technology

[0009] However, if the distributed resource allocation scheme of type 2 in the prior art is used directly for E-PDCCH resource allocation, the scheduling of type 2 and type 0 of PDSCH will be restricted
That is, when there is type 2 E-PDCCH resource allocation and PDSCH resource allocation is type 0 or type 2 centralized resource allocation, there will be restrictions on PDSCH scheduling

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  • Method and device for resource allocation

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] Such as figure 1 As shown, assuming that VRB index numbers 0, 1, 2, 3, 12, 13, 14, and 15 are used for E-PDCCH transmission, only RBGs numbered 4 and 5 can be allocated with type 0 resources; for type 2 In centralized resource allocation, except for RBs with PRB numbers 10-17, the maximum number of consecutively allocated RBs is 2.

[0034] In the prior art, the scheduling method used by the E-PDCCH will impose scheduling restrictions on the scheduling of t...

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Abstract

Provided are a resource configuration method and device. The method comprises: configuring a physical resource block which can be used for transmitting an enhanced physical downlink control channel (E-PDCCH) in a cell using a resource block group (RBG) as a unit through a distributed resource allocation solution (101); according to the configured physical resource block, configuring a virtual resource block which is used for corresponding to E-PDCCH transmission (102); and in accordance with the configured virtual resource block and the configured physical resource block, conducting E-PDCCH transmission in the cell (103). The present invention can be applied to reduce the scheduling limitation on the PDSCH resource allocation which is generated during E-PDCCH resource allocation, thereby increasing the resource allocation efficiency.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a resource configuration method and device. Background technique [0002] In the Long Term Evolution (LTE) / LTE-advanced (LTE-A) system, the downlink multiple access method usually adopts Orthogonal Frequency Division Multiple Access , OFDMA) mode. The downlink resources of the system are divided into Orthogonal Frequency Division Multiplex (Orthogonal Frequency Division Multiple, OFDM) symbols in terms of time, and are divided into subcarriers in terms of frequency. [0003] In an LTE communication system, a normal downlink subframe may include two slots, and each slot has 7 OFDM symbols. And the size of resource block (Resource Block, RB) is defined. One RB contains 12 subcarriers in the frequency domain, and half a subframe duration (one slot) in the time domain, that is, it contains 7 or 6 OFDM symbols. A certain subcarrier in a certain OFDM symbol is called a ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/042H04W72/04H04W72/23
Inventor 吴强刘江华
Owner HUAWEI TECH CO LTD
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