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User equipment, interference cell blind detection method, storage medium and electronic equipment

A technology of interfering cells and blind detection, which is used in electrical components, radio transmission systems, space transmit diversity, etc.

Active Publication Date: 2019-01-04
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the embodiments of the present invention is how to reduce the complexity and power consumption of joint blind detection of interference parameters by user terminals

Method used

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  • User equipment, interference cell blind detection method, storage medium and electronic equipment
  • User equipment, interference cell blind detection method, storage medium and electronic equipment
  • User equipment, interference cell blind detection method, storage medium and electronic equipment

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Embodiment Construction

[0042] In practical applications, the signal vector received by the user terminal on the kth pilot resource element (Resource Element, RE) is r k , r k It can be expressed as the following formula (1):

[0043]

[0044] In formula (1), Expressed as the effective channel matrix corresponding to the serving cell corresponding to the kth RE, the effective channel matrix includes the actual channel matrix and the precoding matrix; is the pilot signal of the serving cell corresponding to the kth RE; Expressed as the effective channel matrix corresponding to the interfering cell corresponding to the kth RE; is the pilot signal of the interfering cell corresponding to the kth RE; n k is the noise signal corresponding to the kth RE, and n k for the variance The additive noise vector of the independent and identically distributed complex Gaussian elements of ; 1≤k≤K, K is the number of REs required to perform blind detection and estimation of interfering cells.

[0045] In...

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Abstract

The invention discloses user equipment, an interference cell blind detection method, a storage medium and electronic equipment. The method comprises steps: pilot signals issued by a base station are received, wherein the pilot signals comprise special reference signals of the interference cell; under a preset condition, according to the special reference signals of the interference cell, the transmission mode of the interference cell and a precoding matrix index are determined; and according to the transmission mode of the interference cell and the precoding matrix index, the modulation mode corresponding to the special reference signals of the interference cell and the RE transmission power corresponding to the special reference signals of the interference cell are detected. The above scheme can effectively reduce the complexity and the power consumption for blind joint detection on interference parameters by the user equipment.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a user terminal, an interference cell blind detection method, a storage medium, and electronic equipment. Background technique [0002] 3GPP has introduced Network Assisted Interference Cancellation and Suppression (NAICS) technology, and base stations send interference parameters to user terminals through broadcast, dedicated signaling or downlink control information (Downlink Control Information, DCI). The interference parameters include a rank indicator (Rank Indicator, RI) of a neighboring cell, a precoding matrix indicator (Pre-coding Matrix Indicator, PMI) and a modulation level (Modulation, MOD). In the case of known interference parameters, a user terminal (User Equipment, UE) performs corresponding processing operations on received signals, which can significantly improve the performance of the communication system. [0003] However, the successful application of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02H04L27/00H04L1/00H04B7/06
CPCH04B7/0639H04L1/0047H04L1/0052H04L1/0053H04L25/0224H04L25/0238H04L27/0012Y02D30/70
Inventor 余辉田琛严伟李卫国李俊强
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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