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A data sending method, receiving method and device

A transmission method and data technology, which are applied to the separation device of the transmission path, the shaping network in the transmitter/receiver, the digital transmission system, etc., which can solve the problem of limited throughput, single mapping between user equipment and coding matrix, and inability to improve User equipment transmission load and other issues

Active Publication Date: 2019-09-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Embodiments of the present invention provide a data sending method, receiving method, and device, which are used to solve the problem in the prior art that the mapping between user equipment and coding matrix is ​​single, so that when the number of users scheduled by the system is small, it is impossible to increase the number of users. The transmission load of the equipment, the throughput that the system can achieve is limited

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  • A data sending method, receiving method and device
  • A data sending method, receiving method and device
  • A data sending method, receiving method and device

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Embodiment Construction

[0189] The embodiment of the present invention is based on the pattern division non-orthogonal multiple access technology, referred to as the graph division multiple access technology or PDMA technology, which is based on the overall optimization of the multi-user communication system and is jointly processed by the sending end and the receiving end. At the sending end, users are distinguished based on non-orthogonal characteristic patterns of multiple signal domains; at the receiving end, based on the characteristic structure of user patterns, BP algorithm receiver and serial interference cancellation are used to realize multi-user detection, so as to achieve Further multiplexing of existing time-frequency wireless resources by multiple users.

[0190] Embodiments of the present invention provide a data sending method, receiving method, and device. For a given number of user equipments, encoding matrices of different dimensions can be flexibly selected. After the selected enco...

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Abstract

The invention discloses a data transmission method and device, which are used to realize flexible mapping between user data and coding matrix and improve system performance. The method is as follows: on the network side, the network side obtains the current data transmission rules, the rules include: the mapping relationship between the currently scheduled K user equipments and the data layer on the N transmission resources corresponding to the selected coding matrix, one user equipment at least Occupying a data layer, the network side and user equipment perform data transmission according to rules. In this way, a variety of pattern mapping coding matrices can be flexibly selected, and the transmission load of the user equipment can be increased, thereby improving the overall throughput of the system, or it can be achieved while ensuring a certain spectrum efficiency while reducing the modulation and coding level, further reducing the receiver algorithmic complexity.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a data sending method, receiving method and device. Background technique [0002] The OFDMA (Orthogonal Frequency Division Multiple Access) access method adopted by the traditional LTE (Long Term Evolution, long-term evolution) system is designed based on the basic idea of ​​orthogonal transmission. can be guaranteed. However, with the rapid development of mobile Internet services and Internet of Things business applications, non-orthogonal multiple access technology has greater advantages in improving system capacity, reducing delay, and supporting more terminals, and is likely to be adopted by 5G mobile communications. used by the system. Non-orthogonal multiple access technology transmits by superimposing information of different users on the same transmission resource, which artificially introduces interference, which needs to be eliminated by a more ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04L25/03H04L1/00H04B7/0456
CPCH04L1/00H04B1/71072H04J13/16H04L5/0023H04L5/0064H04W72/52H04L1/0042H04L1/0003H04L5/0016H04B7/0639H04B7/0663H04L5/0007H04L25/0204H04L25/03006H04L2025/03605
Inventor 康绍莉任斌宋扬
Owner DATANG MOBILE COMM EQUIP CO LTD