Method for transmitting and receiving data and communication device

A technology for sending data and data, applied in wireless communication, location diversity, digital transmission systems, etc., can solve the problem of high computational complexity, and achieve the effect of simplifying the scheduling complexity

Active Publication Date: 2020-05-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In some scenarios, for example, in massive multiple-input multiple-output (Massive MIMO) scenarios, centralized scheduling is applied, and the computational complexity will be very high

Method used

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  • Method for transmitting and receiving data and communication device
  • Method for transmitting and receiving data and communication device
  • Method for transmitting and receiving data and communication device

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Embodiment Construction

[0073] The technical solution in this application will be described below with reference to the accompanying drawings.

[0074] The technical solution of the embodiment of the present application can be applied to various communication systems, for example: the future fifth generation (5thgeneration, 5G) system or new radio (new radio, NR), global mobile communication (global system for mobile communications, GSM) system , code division multiple access (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 (universal mobile telecommunications system, UMTS), global interconnected microwave access (worldwide ...

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Abstract

The invention provides a method for transmitting and receiving data and a communication device. The method is applied to a plurality of network devices, such as a first network device and a second network device, so as to cooperatively transmit data to a terminal device. The method comprises the following steps: in a pre-allocation stage, the plurality of network devices pre-allocate beams or beamsets for the terminal device, i.e., pre-allocate airspace resources; in the real scheduling stage, the plurality of network devices send data to the terminal device through cooperation of the pre-allocated beams or beam sets. According to the application, the airspace resources are pre-allocated in the pre-allocation stage, the scheduling complexity can be simplified, and two modules, namely thenetwork equipment pre-allocation module and the network equipment independent scheduling module, are relatively independent by utilizing the characteristic that the airspace of the terminal equipmentis slowly changed, so the transmission delay and the processing delay are reduced, and the transmission performance is improved.

Description

technical field [0001] The present application relates to the field of wireless communication, and more particularly, to methods and communication devices for transmitting and receiving data. Background technique [0002] Coordinated multipoint (coordination multiple point, CoMP) transmission is a method for solving inter-cell interference problems and improving cell-edge user throughput. In downlink coordinated multi-point transmission, multiple network devices, such as multiple cells, jointly send data to terminal devices, transform inter-cell interference into useful signals, and improve edge user security. [0003] At present, in downlink coordinated multi-point transmission, the scheduling mode of downlink coordinated joint transmission is generally centralized scheduling, that is, a centralized node collects and manages information of multiple cells and performs joint resource allocation. In some scenarios, for example, in a massive multiple-input multiple-output (Mas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/10H04W72/12H04B7/024H04L1/16H04L1/18H04W28/04
CPCH04W72/046H04B7/024H04L1/1607H04L1/1812H04W28/04H04W72/566H04W72/56H04W72/569H04W72/23H04L1/16H04L1/18H04W72/04H04W72/12
Inventor 楼群芳石娴文
Owner HUAWEI TECH CO LTD
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