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Wireless communication method, terminal device and network device

A terminal device, wireless communication technology, applied in the field of communication

Pending Publication Date: 2018-07-17
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present application provide a wireless communication method, terminal equipment, and network equipment, which solve blind detection by performing QCL association between different types of pilot signals and the common search interval of the downlink control channel and / or the DMRS of the user-specific search interval Channel Estimation Problem in Control Channel

Method used

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  • Wireless communication method, terminal device and network device
  • Wireless communication method, terminal device and network device
  • Wireless communication method, terminal device and network device

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Embodiment Construction

[0143] The technical solution in this application will be described below with reference to the accompanying drawings.

[0144] figure 1 is a schematic diagram of a communication system using wireless communication of the present application. Such as figure 1 As shown, the communication system 100 includes a network device 102 that may include a plurality of antennas, such as antennas 104 , 106 , 108 , 110 , 112 and 114 . In addition, the network device 102 may additionally include a transmitter chain and a receiver chain. Those of ordinary skill in the art may understand that the transmitter chain may be a transmitting system or a transmitter, the receiver chain may be a receiving system or a receiver, and the transmitter chain may be a receiving system or a receiver. Both a receiver chain and a receiver chain may include multiple components related to signal transmission and reception (eg, processors, modulators, multiplexers, demodulators, demultiplexers, or antennas, etc...

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Abstract

The invention provides a wireless communication method, a terminal device and a network device. Candidate demodulation pilots of control channels in different search intervals have quasi-co-location QCL association with different types of pilot signals, and the problem of channel estimation during the blind detection of a control channel is solved. The method comprises the following steps: the terminal device determines a pilot signal corresponding to at least one search interval in a plurality of search intervals of the control channel, wherein the pilot signal corresponding to each search interval in the at least one search interval has quasi-co-location QCL association with the candidate demodulation pilots of the control channel in each search interval, and the types of the pilot signals corresponding to different search intervals in the plurality of search intervals are different; and according to the QCL association between the pilot signal corresponding to each search interval and the candidate demodulation pilots of the control channel in each search interval, the terminal device detects the candidate control channels in the at least one search interval.

Description

technical field [0001] The embodiments of the present application relate to the communication field, and more specifically, relate to a wireless communication method, a terminal device, and a network device. Background technique [0002] A downlink control channel (Physical Downlink Control Channel, "PDCCH" for short) is used to carry downlink control information (Downlink Control Information, "DCI" for short). DCI can indicate user-specific information for each user, such as the time-frequency resource location where the user's downlink data is placed, the transmission method used by the user's downlink data, etc., and can also indicate some common information for all users, such as system messages, paging messages, random access responses, etc. [0003] The time-frequency resource position of each user's downlink data can be indicated by the DCI carried by the PDCCH, but there is no information indicating the position of the PDCCH. Therefore, each user needs to perform b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W74/00
CPCH04L5/0048H04W72/046H04W74/004H04W74/006H04W72/23H04L5/0051H04W74/0833H04B7/0695H04W72/20
Inventor 刘鹍鹏李雪茹
Owner HUAWEI TECH CO LTD
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