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Communication method and device

A communication method and channel technology, applied in the field of mobile communication, can solve problems such as interference of sending user data

Active Publication Date: 2020-06-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a communication method and device to solve the problem of interference when multiple DUs send user data to the terminal equipment when the PDCP-RCL segmentation method is applied to the SFN cell

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Embodiment Construction

[0057] The method provided by the present application will be described in detail below in conjunction with the accompanying drawings.

[0058] First of all, some terms used in this application are explained to facilitate the understanding of those skilled in the art.

[0059] 1) Terminal equipment, which can be a device that provides voice and / or data connectivity to users, also known as user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) )Wait. For example, handheld devices with wireless connectivity, vehicle-mounted devices, etc. At present, examples of some terminal devices are: mobile phone, tablet computer, notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in r...

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Abstract

The invention discloses a communication method and device, which are used for solving the problem that interference is generated when a plurality of DUs send user data to terminal equipment when a PDCP-RCL segmentation mode is applied to an SFN cell. The method comprises that: a plurality of DUs respectively determine that first data needs to be sent to corresponding terminal devices, and the plurality of DUs send user downlink physical channels carrying the first data on different transmission resources, wherein the user downlink physical channels are used for carrying user-level data. By adopting the method provided by the invention, different transmission resources are occupied among the DUs to send the user downlink physical channel carrying the first data, so that the interference ofthe first data in the transmission process can be reduced or even eliminated, and each terminal device can correctly receive the data from the corresponding DU.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a communication method and device. Background technique [0002] In order to solve the problem of serious interference between physical cells caused by the same-frequency deployment of long term evolution (LTE), the industry has introduced single frequency network (single frequency network, SFN) technology, by combining multiple physical cells into one SFN Cells (logical cells) to eliminate physical cell boundaries and reduce interference between physical cells. [0003] Currently, an SFN cell may include network elements such as a central unit (central unit, CU), multiple distributed units (distributed unit, DU), and terminal equipment. The physical layer (PHY)-media access control (media access control, MAC) split method is used for communication between the CU and each DU. In this split method, the transmission delay between the CU and the DU Less ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/08H04W74/06H04W74/08H04L5/00H04W72/54
CPCH04W74/06H04W74/0833H04L5/0048H04L5/0053H04L5/0073H04W72/20H04W72/541
Inventor 袁权彭劲东游燕珍
Owner HUAWEI TECH CO LTD