A resource allocation method and device

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: 2016-01-27
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

Method used

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  • A resource allocation method and device
  • A resource allocation method and device
  • A resource allocation method and device

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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] like 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 the ...

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Abstract

The embodiment of the present invention discloses a resource configuration method and device, the method comprising: through a distributed resource allocation scheme, configuring resources that can be used to transmit the enhanced physical downlink control channel E-PDCCH in the cell in units of resource block groups RBG Physical resource blocks; configure virtual resource blocks for corresponding E-PDCCH transmission according to the configured physical resource blocks, and perform E-PDCCH transmission in the cell according to the configured virtual resource blocks and the configured physical resource blocks . By adopting the invention, the scheduling restriction on PDSCH resource allocation caused by E-PDCCH resource allocation can be reduced, and the efficiency of resource allocation can be improved.

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 a Long Term Evolution (Long Term Evolution, LTE) / LTE-advanced Evolution (LTE-Advanced, LTE-A) system, the downlink multiple access mode usually adopts an Orthogonal Frequency Division Multiple Access (OFDMA) mode. The downlink resource of the system is divided into Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple, OFDM) symbols from the time point of view, and divided into sub-carriers from the frequency point of view. [0003] In an LTE communication system, a normal downlink subframe may include two slots, and each slot has 7 OFDM symbols. It also defines the size of a resource block (ResourceBlock, RB). 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 sy...

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Application Information

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