Communication method, base station and user equipment

A communication method and a technology of user equipment, which are applied in the directions of pilot signal allocation, transmission path sub-channel allocation, and error prevention/detection through diversity reception, which can solve the problems of poor flexibility of pilot signals and increased measurement complexity, etc.

Active Publication Date: 2018-06-05
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In MIMO technology, as the number of antennas increases, the number of ports will also increase. If the existing pilot signal design scheme is used, the base station needs to send pilot signals to the UE through all ports, resulting in the base station configuring for the UE. The flexibility of the pilot signal is poor, and the UE also needs to measure the pilot signal for all ports, which increases the complexity of the measurement

Method used

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  • Communication method, base station and user equipment
  • Communication method, base station and user equipment
  • Communication method, base station and user equipment

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Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0061] The technical scheme of the present invention can be applied to various communication systems, such as: Global System of Mobile Communication (Global System of Mobile communication, GSM), Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access Wireless, WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), etc.

[0062] User equipment...

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Abstract

Embodiments of the present invention provide a communication method, a base station, and user equipment. The method includes: forming m beams by using a manner of antenna weighting, where m is a positive integer greater than 1; determining an uplink receive power of each beam in the m beams according to an uplink sounding signal of user equipment UE; selecting n beams from the m beams according to the uplink receive power of each beam in the m beams, where n is a positive integer, and n<m; and sending pilot signals to the UE by using the n beams. In the embodiments of the present invention, an uplink receive power of each beam in m beams is determined according to an uplink sounding signal of UE, and n beams are selected from the m beams according to the uplink receive power of each beam in the m beams, to send pilot signals to the UE, instead of sending the pilot signals to the UE by using all the beams, thereby improving the flexibility of configuring the pilot signals for the UE, and reducing the complexity of measuring the pilot signals by the UE.

Description

technical field [0001] The present invention relates to the field of communication, and in particular, to a communication method, base station and user equipment. Background technique [0002] Theoretical analysis shows that as the number of antennas increases, the channel capacity will also increase. At the same time, increasing the number of antennas at the transmitting end can also obtain better beamforming effects, so the wireless transmission technology that uses more antennas to send and receive, that is, multi-input Multiple-Input and Multiple-Output (MIMO) technology has always been one of the mainstream technologies in the field of mobile communication research. [0003] A reference signal, that is, a pilot signal, is a known signal provided by a base station to a user equipment (User Equipment, UE), and used by the UE for channel estimation or channel measurement. The basic idea of ​​the current pilot signal design is that each port corresponds to a pilot signal. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04B17/00H04B17/327
CPCH04B7/0617H04B7/0619H04B7/0695H04B7/088H04B17/318H04L5/0048
Inventor 杨晶张劲林
Owner HUAWEI TECH CO LTD
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