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Data transmission method and device

A data transmission method and a technology of a data transmission device, which are applied in the field of communication, can solve problems such as poor reliability of data transmission between terminals and base stations, and achieve the effect of improving reliability

Inactive Publication Date: 2018-02-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a data transmission method and device, aiming to solve the existing technical problem of poor data transmission reliability between terminals and base stations

Method used

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  • Data transmission method and device

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Embodiment Construction

[0037]It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] The invention provides a data transmission method.

[0039] refer to figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the data transmission method of the present invention.

[0040] In this embodiment, the data transmission method includes:

[0041] Step S10, when the terminal receives the control information sent by the base station, determine whether the terminal has only one carrier component, wherein the control information is when the base station determines that the terminal supports the transmission mode of uplink space division multiplexing produced;

[0042] In the standards of 3GPP LTE and LTE-A, eNB is used to represent a base station and corresponds to a user terminal. In one TTI, the base station detects information such as SRS (Sounding Reference Signal, channel sound...

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Abstract

The invention discloses a data transmission method and device. The method comprises the steps of: when a terminal receives control information sent by a base station, determining whether the terminalonly has one carrier unit, wherein the control information is generated when the base station determines the fact that the terminal supports the uplink space division multiplex transmission mode; andif the terminal only has one carrier unit and MCS (Mymova Checkin System) index values of both transmission blocks are greater than a preset threshold, encoding indication information of the carrier unit in the two transmission blocks, and according to the control information, sending the two transmission blocks to the base station, so that the base station acquires the indication information of each carrier unit by parsing the two transmission blocks. According to the invention, reliability of data transmission between the terminal and the base station is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a data transmission method and device. Background technique [0002] With the research and development of the LTE (Long Term Evolution, long-term evolution) system, in the 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) version, the uplink of 3GPP's Rel-8 / Rel-9 only supports single-antenna transmission , while uplink multi-antenna transmission was introduced in Rel-10 to support uplink PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) space division multiplexing and PUCCH (Physical Uplink Control CHannel, Physical Uplink Control Channel) transmission diversity . If the uplink uses space division multiplexing, 2 TB (Transport Block, transport block) will be transmitted on the PUSCH at the same time. At this time, CQI (Channel Quality Indicator, channel quality information indication) and PMI (Precoding Matrix Indicator, pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/06H04W72/04
CPCH04L1/0009H04L1/0612H04L1/0618H04W72/0453
Inventor 孟杰高明刚
Owner ZTE CORP