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Data transmission method and device

A data transmission method and data packet technology, which are applied in the field of data transmission methods and devices, can solve problems such as increased data transmission delay, failure to submit SDUs in time, overtime retransmission, etc., to reduce processing delays, improve delivery efficiency, The effect of saving network resources

Active Publication Date: 2021-05-14
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if one SDU of a certain thread is missing, the SDUs of other threads will not be delivered in time, which will increase the data transmission delay or overtime retransmission

Method used

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  • Data transmission method and device
  • Data transmission method and device

Examples

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Embodiment 1

[0026] refer to figure 1 , which shows a flow chart of Embodiment 1 of a data transmission method of the present invention, the method is applied to a new air interface NR device, and the method may specifically include:

[0027] Step 101: Identify the transmission control protocol TCP thread corresponding to the protocol data unit PDU received by the PDCP layer, and generate a thread identifier corresponding to the TCP thread for the PDU.

[0028] The data transmission method in the embodiment of the present invention can be applied to NR (New Radio, new air interface) equipment. The new air interface NR is also called the fifth generation mobile communication system 5G equipment, and the user protocol of 5G-NR mainly includes PDCP (Packet DataConvergence Protocol, packet data convergence protocol), RLC (Radio Link Control, radio link control layer protocol) and MAC (Medium Access Control, media access control layer). When the base station transmits uplink data to the UE (Us...

Embodiment 2

[0044] refer to image 3 , shows a flowchart of Embodiment 2 of a data transmission method of the present invention.

[0045] Step 301, identifying the transmission control protocol TCP thread corresponding to the protocol data unit PDU received by the packet data convergence protocol PDCP layer, and generating the thread identifier corresponding to the TCP thread of the PDU;

[0046] When the packet data convergence protocol PDCP layer receives the protocol data unit PDU, it identifies the transmission control protocol TCP thread corresponding to the transmission of the PDU, and generates a thread identifier corresponding to the TCP thread of the PDU.

[0047] The step 301 includes:

[0048] Step 3011: Analyze the PDU received by the PDCP layer to obtain a TCP data packet; identify the TCP thread corresponding to the PDU according to the quadruple corresponding to the TCP data packet.

[0049] Step 3012: Generate a thread identifier corresponding to the PDU according to the...

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Abstract

The embodiment of the invention provides a data transmission method and device. The method comprises the following steps: identifying a transmission control protocol (TCP) thread corresponding to a protocol data unit (PDU) received by a packet data convergence protocol (PDCP) layer, and generating a thread identifier of the TCP thread corresponding to the PDU; according to the thread identifier corresponding to the PDU and the PDU serial number corresponding to the PDU, generating a two-dimensional queue, each queue in the two-dimensional queue comprising PDUs arranged according to the PDU serial number and having the same thread identifier, and each queue corresponding to different thread identifiers; determining a target queue in the two-dimensional queue, wherein the target queue comprises continuous PDUs; and submitting the PDUs in the target queue in sequence. According to the data processing method and device, the data packet transmission delay can be reduced, and network resources are saved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and device. Background technique [0002] The user plane protocol of 5G (5th Generation Mobile Networks, fifth-generation communication technology) NR (New Radio, new wireless technology) mainly includes PDCP (Packet Data Convergence Protocol, packet data convergence protocol), RLC (Radio Link Control, Radio Link Control Protocol) and MAC (Media Access Control, Media Access Control Layer), data transmission between UE (User Equipment, User Equipment) and the base station currently uses TCP (Transmission Control Protocol, Transmission Control Protocol) for transmission. [0003] Since the current application of the TCP protocol layer is basically multi-threaded, multiple TCP connections will be established during one application process. One TCP connection corresponds to one thread, which is carried on one RB (radio bearer, wireless bearer...

Claims

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Application Information

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IPC IPC(8): H04W28/06H04W80/02H04L1/18
CPCH04W28/06H04W80/02H04L1/1867H04L1/188
Inventor 程岳
Owner DATANG MOBILE COMM EQUIP CO LTD
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