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PUCCH resource mapping method and apparatus thereof

A technology for resource mapping and resource configuration information, which is applied to digital transmission systems, electrical components, and error prevention to achieve the effects of reducing the number of PUCCH resources, flexibly configuring PUCCH resources, and improving uplink transmission efficiency

Active Publication Date: 2014-02-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0027] However, the disclosed technologies in the prior art only provide related processing solutions for traditional PDCCH resource->PUCCH resource mapping, and do not provide specific processing solutions for enhanced PDCCH->PUCCH resource mapping

Method used

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  • PUCCH resource mapping method and apparatus thereof
  • PUCCH resource mapping method and apparatus thereof
  • PUCCH resource mapping method and apparatus thereof

Examples

Experimental program
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Effect test

Embodiment b

[0095] Embodiment b: In the LTE TDD system, M≥1, the UE needs to perform UCI feedback on the PDCCH received in M ​​downlink subframes in the same uplink subframe, as shown in Table 1; in this case Next, when step 620 is executed, the UE needs to determine a PUCCH resource in each of the M subframes for the N E-PDCCH clusters configured by the system according to the preset resource configuration information, that is, any E-PDCCH cluster - The PDCCH cluster corresponds to one PUCCH resource in each of the M subframes.

[0096] For example, assume that N E-PDCCH clusters are configured in the system, and their numbers are E-PDCCH-1, E-PDCCH-2, ..., E-PDCCH-N. At the same time, assuming any E-PDCCH cluster, Denoted as E-PDCCH-n (1≤n≤N), the numbers of the corresponding PUCCH resources in each of the M subframes are PUCCH-n-1, PUCCH-n-2,... , PUCCH-n-M, wherein, PUCCH-n-m (1≤n≤N, 1≤m≤M) indicates the PUCCH resource corresponding to the PDCCH transmitted by E-PDCCH-n in the mth su...

Embodiment c

[0124] Embodiment c, in the LTE FDD system, M=1, if the UE is configured to detect PDCCHs corresponding to K downlink component carriers on one carrier, then the UE receives at most K PDCCHs in one E-PDCCHcluster in one downlink carrier If the PDCCH that needs to feed back UCI, the UE needs to perform UCI feedback on the PDCCH received in an E-PDCCH cluster in one uplink subframe. In this case, when performing step 620, the UE needs to use the preset resource The configuration information determines corresponding K PUCCH resources for each E-PDCCH cluster, that is, K PUCCH resources corresponding to any E-PDCCH cluster.

[0125] For example, assume that N E-PDCCH clusters are configured in the system, and their numbers are E-PDCCH-1, E-PDCCH-2, ..., E-PDCCH-N. At the same time, assuming any E-PDCCH cluster, Denoted as E-PDCCH-n (1≤n≤N), the numbers of the PUCCH resources corresponding to each of the K component carriers are PUCCH-n-1, PUCCH-n-2,... , PUCCH-n-K, where PUCCH-n-...

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Abstract

The present invention relates to the field of communication, and discloses a method and device for PUCCH (Physical Uplink Control CHannel) resource mapping, which decreases efficiently the PUCCH resource number reserved in a system. The method comprises: Setting resource configuration information which is used to indicate the PUCCH resource corresponding to each system configured E-PDCCH cluster; A User Equipment(UE) and a base station determine respectively, according to the configuration information, at least one PUCCH resource corresponding to each system configured E-PDCCH cluster, and transmit UCI(Uplink Control Information)on the PUCCH resource corresponding to the E-PDCCH cluster with PDCCH transmission. Therefore, more flexible PUCCH resource configuration can be provided for the Enhanced PDCCH; meanwhile, the reserved PUCCH resource number in the system can be effectively decreased, and thus the uplink resource utilization can be increased.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for PUCCH resource mapping. Background technique [0002] In the LTE (Long Term Evolution) system, the PDCCH (Physical Downlink Control Channel) is sent in each radio subframe, and forms a TDM (Time Division Multiplexing) relationship with the PDSCH (Physical Downlink Shared Channel) that transmits downlink data. refer to figure 1 As shown, the PDCCH is transmitted through the first N OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbols of a downlink subframe, wherein, the possible values ​​of N are 1, 2, 3, 4, and N=4 It is only allowed to appear in systems with a system bandwidth of 1.4MHz. [0003] With the continuous evolution of the LTE-Advanced (Long Term Evolution) standard, as well as COMP (Coordinated Multiple Point, coordinated multi-point) transmission, enhanced MU-MIMO (Muti-User-MIMO, multi-user ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04W72/04H04W72/12
CPCH04W72/0413H04W72/21
Inventor 沈祖康林亚男赵锐
Owner DATANG MOBILE COMM EQUIP CO LTD
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