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Patent Searching and Data


Title:
RESOURCE ALLOCATION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/252889
Kind Code:
A1
Abstract:
The present application provides a resource allocation method and apparatus for reducing pilot interference. The method comprises: determining a metric value between every two spatial layers of N spatial layers, and allocating demodulation reference signal (DMRS) ports for the N spatial layers in a DMRS port set according to the metric value between every two spatial layers of the N spatial layers, wherein N is an integer greater than 1, the metric value is used for representing the correlation between channels corresponding to the spatial layers, and the DMRS port set comprises at least two non-orthogonal DMRS ports. Because interference between spatial layers having higher correlation is larger, and interference between spatial layers having lower correlation is smaller, according to the solution, orthogonal DMRS ports can be allocated to the spatial layers having higher correlation, and the non-orthogonal DMRS ports are allocated to the spatial layers having lower correlation, such that the pilot interference can be reduced, thereby reducing channel estimation loss.

Inventors:
GAO XIANG (CN)
LIU KUNPENG (CN)
ZHANG ZHENING (CN)
QU BINGYU (CN)
Application Number:
PCT/CN2022/089640
Publication Date:
December 08, 2022
Filing Date:
April 27, 2022
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L5/00; H04B7/0413; H04W72/04
Foreign References:
US20190215050A12019-07-11
CN110771078A2020-02-07
US20190356378A12019-11-21
CN109891766A2019-06-14
CN102271406A2011-12-07
Other References:
PANASONIC: "PT-RS design", 3GPP DRAFT; R1-1720370 PT-RS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, USA; 20171001, 17 November 2017 (2017-11-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051368977
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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