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Multiuser information processing method and device

An information processing method and a technology of an information processing device, which are applied in the field of communication, can solve problems such as demodulation performance degradation, and achieve the effect of enhancing robustness and enhancing access performance

Active Publication Date: 2016-11-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a multi-user information processing method and its device, so as to at least solve the problem that if the receiver uses a simple symbol-level SIC to demodulate the superimposed symbols when the multi-user information is superimposed and coded at the transmitter Demodulation performance will drop a lot

Method used

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  • Multiuser information processing method and device
  • Multiuser information processing method and device
  • Multiuser information processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1. A method for processing multi-user information, comprising:

[0064] The transmitter performs a bit operation on the first group of bit information to be sent and the second group of bit information to obtain a third group of bit information; wherein, the number of bits M1 of the first group of bit information is less than or equal to that of the second group of bit information The number of bits M2;

[0065] The transmitter processes the first group of bit information to obtain a first complex symbol, and processes the third group of bit information to obtain a second complex symbol;

[0066] The transmitter adds the first complex symbol and the second complex symbol to obtain a superposition symbol;

[0067] The transmitter transmits the superimposed symbols to form a transmission signal.

[0068] Optionally, the bit operation includes a bit exclusive OR operation; the operation objects are all bits of the first group of bit information and M1 bits of ...

Embodiment 2

[0107] Embodiment 2. A multi-user information processing device is set in a transmitter, including:

[0108] An operation module, configured to perform bit operations on the first group of bit information to be sent and the second group of bit information to obtain a third group of bit information; wherein, the number of bits M1 of the first group of bit information is less than or equal to that of the second group The number of bits of bit information M2;

[0109] A modulation module, configured to modulate the first group of bit information to obtain a first complex symbol, and modulate the third group of bit information to obtain a second complex symbol;

[0110] A superposition module, configured to add the first complex symbol and the second complex symbol to obtain a superimposed symbol;

[0111] The transmitting module is configured to form the superimposed symbols into a transmitting signal and transmit it.

[0112] Optionally, the bit operation includes a bit exclus...

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Abstract

The invention provides a multiuser information processing method and device. The method comprises the steps that a transmitter carries out a bit operation on a first group of to-be-sent bit information and a second group of to-be-sent bit information to acquire a third group of bit information, wherein the bit number M1 of the first group of bit information is less than or equal to the bit number M2 of the second group of bit information; the transmitter processes the first group of bit information to acquire a first complex symbol, and processes the second group of bit information to acquire a second complex symbol; the transmitter adds the first complex symbol with the second complex symbol to acquire a superimposed symbol; and the transmitter forms the superimposed symbol into a transmitting signal and sends the transmitting signal. By adopting the multiuser information processing method and device provided by the invention, during superimposed coding of multiuser information in the transmitter, the problem that if a receiver uses a simple symbol level SIC to decompose the superimposed symbol, the demodulation performance thereof will be decreased greatly is solved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a multi-user information processing method and device thereof. Background technique [0002] The principle of the non-orthogonal multiple access technology (None Orthogonal Multiple Access, referred to as NOMA) is that the transmission side performs multi-user information superposition coding, and the receiving side uses serial interference cancellation (Successive Interference Cancellation, referred to as SIC). [0003] For example, superposition coding on the transmitting side of a broadcasting system refers to superimposing the information of multiple users together, where "superimposition" usually means direct addition in the power domain. The transmitter sends the superimposed information to multiple receivers at the same time. Each receiver extracts the information it needs. It should be noted that the superposition coding technology enables each user's information to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0048H04L1/00
Inventor 袁志锋戴建强
Owner ZTE CORP