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Data transmission method and apparatus

A data transmission method and data packet technology are applied in the field of data transmission methods and devices, and can solve problems such as packet loss of terminal equipment.

Inactive Publication Date: 2018-11-20
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a data transmission method and device, which can solve the packet loss problem of terminal equipment during data transmission in a non-ideal backhaul environment

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  • Data transmission method and apparatus
  • Data transmission method and apparatus

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Embodiment Construction

[0028] The data transmission method and device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] The embodiments of the present application are applied to a data transmission scenario of a user plane in a communication system. For example, it is applied to a scenario where a base station sends downlink data to a terminal device.

[0030] figure 2 A schematic diagram of a communication system to which the technical solution provided in the embodiment of the present invention is applied is given. The communication system may include a first base station (central node base station), terminal equipment, and at least one second base station (distributed node base station). Among them, the central node base station and the core network establish a unique user data plane transmission link for receiving / sending data packets (user data) of terminal equipment, and can forward / combine the data packets ...

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Abstract

The embodiment of the invention provides a data transmission method and apparatus, and relates to the field of communication. The problem of packet loss of a terminal device in a data transmission process in a non-ideal backhaul environment can be solved. The scheme comprises the following steps: a first base station determines data packet transmission rates of N second base stations, wherein N isan integer greater than or equal to 1; the first base station determines data packets of terminal devices corresponding to the N second base stations according to the data packet transmission rates of the N second base stations; and the first base station sends the data packets of the terminal devices corresponding to the N second base stations to the N second base stations, so that the N secondbase stations send the data packets of the terminal devices to the terminal devices. The data transmission method and apparatus provided by the invention are applied to a scene in which the base stations send downlink data to the terminal devices.

Description

Technical field [0001] This application relates to the field of communications, and in particular to a data transmission method and device. Background technique [0002] In order to improve the data transmission rate of users, the third generation partnership project (3GPP) proposed a wireless dual-connection technology solution in R12. For example, the 3GPP 1A scheme. Among the existing standard solutions, the 3GPP 1A solution mainly uses Packet Data Convergence Protocol (PDCP) or Radio Link Control (Radio Link Control, RLC) layer data separation. One or more base stations support the PDCP layer for data packet processing. Forwarding, so as to realize the aggregated transmission of resources among multiple base stations. [0003] However, in a non-ideal backhaul environment, the wireless dual connection technology cannot completely solve the optimization of the transmission rate between base stations. Exemplary, such as figure 1 As shown, assuming that the terminal device is co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W28/10
CPCH04W28/0236H04W28/10
Inventor 曹亘李福昌范斌李轶群
Owner CHINA UNITED NETWORK COMM GRP CO LTD