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Sending method and apparatus, and receiving method and apparatus of uplink data

A technology for row data and data, applied in the fields of receiving methods and devices, and methods for transmitting uplink data

Active Publication Date: 2017-02-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for sending uplink data, a method for receiving it, and a device to solve the problem of how to support more user access in the same cell

Method used

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  • Sending method and apparatus, and receiving method and apparatus of uplink data
  • Sending method and apparatus, and receiving method and apparatus of uplink data
  • Sending method and apparatus, and receiving method and apparatus of uplink data

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Embodiment Construction

[0099] The core of the present invention is to combine non-orthogonal multiple access technology with uplink MIMO technology, make full use of the characteristics of non-orthogonal multiple access technology in time-frequency domain, coding domain, power domain and air domain, and can support more The terminals transmit data simultaneously on the same time-frequency resource, so as to realize the improvement of the system capacity or the number of access user terminals.

[0100] Embodiments of the present invention will be described by taking a Pattern Division Multiple Access (PDMA) technology as an example. It should be noted that other non-orthogonal multiple access technologies are also applicable to this embodiment of the present invention.

[0101] PDMA is a new type of non-orthogonal multiple access technology, which utilizes the asymmetry of multi-user channels, and realizes time-frequency domain and power domain Multi-dimensional non-orthogonal signal superimposition...

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Abstract

The invention discloses a sending method and apparatus, and a receiving method and apparatus of uplink data. The sending method includes: performing non-orthogonal multiple access coding modulation on the uplink data through channel coding by employing a non-orthogonal multiple access pattern vector corresponding to the uplink data, wherein the uplink data through the non-orthogonal multiple access coding modulation refers to modulation symbols of the non-orthogonal multiple access pattern vector; and generating an OFDM symbol of each antenna port through power adjustment, transmission layer mapping, MIMO pre-coding and resource mapping of the modulation symbols. According to the methods and apparatuses, the non-orthogonal multiple access technology and the uplink MIMO technology are combined, characteristics of the non-orthogonal multiple access technology in the time-frequency domain, the coding domain, the power domain and the airspace etc. are fully utilized, simultaneous data transmission at the same time-frequency resource by more terminals can be supported, and the system capacity or the number of accessed terminals can be increased.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method for sending uplink data, a method for receiving them, and a device. Background technique [0002] As one of the key technologies of Long Term Evolution (LTE) and its evolution systems, Multiple Input Multiple Output (MIMO) technology has been widely used and continuously enhanced. However, it is still unable to meet the needs of future communications for user capacity. [0003] How to support more user access in the same cell is an urgent problem to be solved. Contents of the invention [0004] The purpose of the present invention is to provide a method for sending uplink data, a method for receiving it and a device thereof, so as to solve the problem of how to support more user access in the same cell. [0005] The purpose of the present invention is achieved through the following technical solutions: [0006] A method for sending uplink data, ...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04L1/06H04B7/0456
CPCH04B7/04H04L5/0007H04B7/0456H04B7/0486H04L1/06
Inventor 康绍莉宋扬秦飞孙韶辉任斌
Owner DATANG MOBILE COMM EQUIP CO LTD
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