Data transmission method and device

A data transmission and multicast transmission technology, applied in the field of data transmission, can solve the problems of poor data transmission reliability, packet loss, and low applicability, and achieve the effects of ensuring data reception quality, saving network resources, and high applicability

Inactive Publication Date: 2019-03-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the conversion process of the terminal from the idle mode to the active mode, the conversion delay will

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

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Embodiment Construction

[0062] The data transmission method provided in the embodiment of the present application may be applicable to a long term evolution (long termevolution, LTE) system, or other wireless communication systems using various wireless access technologies, such as code division multiple access (code division multiple access, CDMA) ), frequency division multiple access (FDMA), time division multiple access (time division multiple access, TDMA), orthogonal frequency division multiple access (orthogonal frequency division multiple access, OFDMA), single carrier frequency division multiple access (singlecarrier -frequency division multiple access, SC-FDMA) and other access technology systems are also applicable to subsequent evolution systems, such as the fifth generation wireless (5th generation, 5G, also known as New radio (NR)) system, etc.

[0063] see figure 1 , is a basic structure of the communication system provided by the embodiment of the present application. The communicatio...

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Abstract

Embodiments of the invention provide a data transmission method and device. The method comprises the following steps that a multicast transmission control network element receives a first non-access layer message, wherein the first non-access layer message comprises receiving quality indication information of a terminal for receiving data on a multicast transmission path; after the multicast transmission control network element receives the receiving quality indication information, the multicast transmission control network element determines to start a unicast transmission path; and the multicast transmission control network element sends a first indication message to a user plane network element, wherein the first indication message is used for indicating to start a first unicast transmission path, and the first unicast transmission path is used for assisting the multicast transmission path to transmit data to the terminal. Through the application of the embodiments of the invention,the data receiving quality indication information of the terminal can be obtained through the non-access layer message, and the unicast transmission path is used for assisting the multicast transmission path to transmit the data to the terminal, so that the data transmission in a double-flow mode is realized, and the method and the device have the advantages that the reporting efficiency of the data receiving quality is improved, the data transmission reliability is enhanced and the data transmission efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a data transmission method and device. Background technique [0002] The Third Generation Partnership Project (3 rd The generation partnership project (3GPP) multimedia broadcast multicast service (MBMS) is a data transmission system that supports an air interface and transmits service data in a broadcast mode. In the data transmission system of 3GPP MBMS, the service data of the operator network is transmitted and controlled by the application server (application server). Decision-making, including the multicast delivery mode or unicast delivery mode of business data. However, when the application server decides to use the multicast delivery mode for data delivery, the terminals of the third-party service data may lose data packets due to poor reception of multicast air interface signals. [0003] In the prior art, when a problem such as data packet loss...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04L5/00H04W72/00H04W74/00
CPCH04L5/0053H04W4/06H04W74/004H04W72/30H04W76/40H04L47/15H04W28/0236H04W40/12H04W40/34
Inventor 杨艳梅
Owner HUAWEI TECH CO LTD
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