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Data transmission method, device and user equipment

A data transmission method and user equipment technology, applied in the fields of data transmission methods, devices and user equipment, capable of solving problems such as inaccurate downlink MCS and affecting transmission efficiency

Active Publication Date: 2018-03-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem in the prior art that the downlink MCS determined by the eNB is inaccurate, thereby affecting the transmission efficiency, an embodiment of the present invention provides a data transmission method, device and user equipment

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  • Data transmission method, device and user equipment
  • Data transmission method, device and user equipment
  • Data transmission method, device and user equipment

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Embodiment Construction

[0201] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0202] In order to facilitate the understanding of the embodiments of the present invention, the measurement set and the emission set are briefly introduced below. In this embodiment, the measurement set and the emission set are defined for the UE, and the measurement set and the emission set of different UEs may be different. The cells in the UE's measurement set receive and process the uplink data sent by the UE, and the cells in the UE's measurement set exchange information with each other. The uplink data sent by the UE includes downlink CQI and channel sounding reference signal (Sounding Reference Signal, referred to as SRS), the downlink CQI is in one-to-one correspondence with the downlink transmission flow assumed by the UE. T...

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Abstract

Embodiments of the present invention provide a method, device, and UE for data transmission, which relate to the field of communications. The method includes: receiving a downlink CQI fed back by the first UE, and determining the downlink CQI of the first UE according to the downlink CQI fed back by the first UE. The first downlink MCS: according to the first downlink MCS of the first UE, allocate the transmission resource of the first cell to the first UE, and the first cell is the serving cell of the first UE; acquire the measurement set of the first UE The sub-bandwidth SB-level uplink channel matrix of each cell; according to the SB-level uplink channel matrix of each cell in the measurement set of the first UE, determine each cell in the transmission set of the first UE to be sent The SINR of the downlink transmission flow; Determine the second downlink MCS of the first UE according to the SINR of the downlink transmission flow to be sent. The present invention can make full use of channel quality and improve transmission efficiency.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method, device and user equipment. Background technique [0002] Long Term Evolution (LTE for short) is a standard of the 3rd Generation Partnership Project (3GPP for short), and it is regarded as a transition from the 3rd-generation mobile communication technology (3rd-generation, 3G for short) to the fourth It is the mainstream technology in the evolution of 4th-generation (4G) mobile communication technology. The LTE includes frequency division duplexing (Frequency Division Duplexing, FDD for short) and time division duplexing (Time Division Duplexing, TDD for short). Among them, the uplink and downlink of the LTE-TDD system occupy the same frequency band, and only rely on time to distinguish the uplink and downlink. [0003] In the LTE-TDD system, the existing data transmission method includes: an evolved base station (evolved Node B, referred to as eNB...

Claims

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Application Information

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IPC IPC(8): H04W24/10
CPCH04W24/10H04W72/542H04L5/0046H04L5/006H04L25/00H04J11/0053H04L1/0019H04L1/0026H04L1/0035H04L1/0077H04L1/20H04B7/0456H04B7/0617H04B7/0619H04B7/063H04B7/0639H04L1/0015H04L1/0027H04L27/2601H04B7/0632H04W72/21H04W72/23H04L5/00H04B7/0857
Inventor 李琦辛嘉鹏李小捷
Owner HUAWEI TECH CO LTD