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Data transmission method and device, and user equipment

A technology for transmitting data and user equipment, applied in transmission systems, radio transmission systems, electrical components, etc., can solve problems such as large data transmission delay, low probability of UE pairing success, long time-consuming pairing, etc., and achieve the effect of saving power

Active Publication Date: 2018-04-06
XFUSION DIGITAL TECH CO LTD
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Problems solved by technology

[0005] Since each UE only feeds back one SINR value, when the number of UEs is small and the number of codebooks is large, the probability of UE pairing success is low; if each UE feeds back multiple SINR values, the interaction center will consume multiple UEs Long time, resulting in a large data transmission delay

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

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Embodiment Construction

[0056] 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.

[0057] see figure 1 , the embodiment of the present invention provides a system architecture diagram for data transmission, the system includes a first UE101, at least one second UE102 and eNB103; the first UE101 and at least one second UE102 perform data transmission with the eNB103 respectively. Data transmission is performed between the first UE 101 and each of the at least one second UE 102 through a D2D link.

[0058] Before the first UE101 transmits data to the eNB103, the first UE101 obtains the channel matrix and the preset codebook set, the preset codebook set includes multiple codebooks, and one codebook includes multiple column vectors; Select multiple codebooks from the preset codebook set, and select multiple column vecto...

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Abstract

The invention discloses a data transmission method and device and user equipment, belonging to the technical field of wireless communication. The data transmission method comprises the following steps: first UE confirms a plurality of first SINR values and plurality pieces of first codebook index information to constitute a first SINR set, and receives at least one second SINR value of at least one second UE broadcast and at least one second codebook index information to constitute a second SINR set; the first target codebook index information of the first target SINR value, the second targetcodebook index information of the second target SINR value and the equipment identifier of the second target UE are confirmed according to the first SINR set and the second SINR set; and the first target codebook index information, the second target codebook index information and the equipment identifier of the second target UE are sent to the eNB. Because the pairing of the second SINR value is performed based on the plurality of first SINR values, the pairing probability can be improved; the pairing of each UE is processed separately, and the interaction center is not required to perform pairing on each UE one by one, therefore, the pairing time is shortened, the pairing efficiency is improved, and the data transmission delay is reduced.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a data transmission method, device and user equipment. Background technique [0002] A multi-user multiple-input-multiple-output (Multi-User Multiple-Input-Output, MU MIMO) technology is a technology that utilizes a space division multiple access technology to serve multiple paired user equipments (User Equipment, UE) on the same time-frequency resource. However, since multiple paired UEs cannot cooperate with each other, when using MU-MIMO technology for data transmission, precoding technology is required to eliminate the interference between multiple paired UEs; moreover, multiple paired UEs need to use the same codebook Different vectors are precoded. [0003] Before transmitting data between the UE and the eNB, the paired UE needs to be determined by the interaction center. Specifically, for each UE in the wireless system, the UE determines according t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0452H04B7/0456
CPCH04B7/0452H04B7/0456
Inventor 韩元超彭小雨方舒岳宗笛张鹏
Owner XFUSION DIGITAL TECH CO LTD
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