Method and terminal equipment for blind detection of physical downlink control channel

A technology for physical downlink control and terminal equipment, applied in the direction of devices dedicated to receivers, sub-channel allocation of transmission paths, transmission modification based on link quality, etc.

Active Publication Date: 2020-07-28
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology

[0008] Therefore, in the method for blind detection of PDCCH in the embodiment of the present application, when the number of PDCCH searches in at least one search space of the terminal device is greater than the maximum number of blind detections, the terminal device reduces the number of PDCCH searches in the at least one search space according to certain preset rules. times, until the number of PDCCH searches is less than or equal to the maximum number of blind detection times, so that the terminal equipment can allocate the number of blind detection times more reasonably, and it can also solve the problem of reducing the channel estimation complexity of the terminal equipment

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  • Method and terminal equipment for blind detection of physical downlink control channel
  • Method and terminal equipment for blind detection of physical downlink control channel
  • Method and terminal equipment for blind detection of physical downlink control channel

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Embodiment Construction

[0034] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0035] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile Communication (GSMC) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability For Microwave Access (WiMAX) communication system, the future fifth generation (5th Generation, 5G) system or new Wireless (New Radio, NR), etc.

[0036] The terminal equipment in the e...

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Abstract

The embodiments of the present application relate to a method and a terminal device for blind detection of a physical downlink control channel PDCCH. The method includes: if the number of PDCCH searches of at least one search space of the terminal device is greater than the maximum number of blind detection times, the terminal device reduces the number of PDCCH searches of n dedicated search spaces and / or m common search spaces included in the at least one search space , the reduced number of PDCCH searches in the at least one search space is less than or equal to the maximum number of blind detections; the terminal device performs PDCCH blind detection in the at least one search space according to the reduced number of PDCCH searches in the at least one search space . The method for blind detection of PDCCH and the terminal device in the embodiment of the present application can make the terminal device allocate blind detection times more reasonably, and can also solve the problem of reducing the complexity of channel estimation of the terminal device.

Description

technical field [0001] The present application relates to the communication field, and in particular to a method and a terminal device for blind detection of a physical downlink control channel. Background technique [0002] In the Long Term Evolution (LTE) system, the Physical Downlink Control Channel (PDCCH) is transmitted in the control area of ​​the system, the system control area occupies the entire system bandwidth, and the number of symbols in the time domain occupied is 1 - 4 symbols, the number of symbols can be notified to the terminal device by a physical control format indicator channel (Physical Control Format Indicator Channel, PCFICH). [0003] In the technical discussion of the 5th Generation (5G) system New Radio (NR), the concept of Control Resource Set (CORESET) was introduced. CORESET configures the frequency domain resources occupied by the PDCCH search space and the timing The length of the field, such as occupying several Orthogonal Frequency Division...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L5/00
CPCH04L1/0038H04L5/0007H04L5/0053H04L5/0048H04W72/23H04L25/0238
Inventor 唐海
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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