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Adaptive adjustment method for multi-carrier waveform parameters of communication system

A technology of self-adaptive adjustment and waveform parameters, used in transmission systems, multi-frequency code systems, digital transmission systems, etc.

Pending Publication Date: 2022-06-28
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Adaptive adjustment method for multi-carrier waveform parameters of communication system
  • Adaptive adjustment method for multi-carrier waveform parameters of communication system
  • Adaptive adjustment method for multi-carrier waveform parameters of communication system

Examples

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Embodiment 1

[0049] Please refer to figure 1 , an adaptive adjustment method for multi-carrier waveform parameters of a communication system, comprising the following steps:

[0050] S1, obtain the service quality requirement of the user and the channel environment information fed back by the terminal receiver; the service quality requirement includes requirements for bit error rate and data transmission rate; the channel environment information includes the signal-to-noise ratio of the channel and the data transmission rate. Puller frequency shift parameter;

[0051] S2, matching a set of waveform parameter control factors closest to the channel environment information from a preset codebook that reflects the relationship between quality of service and waveform parameter control factors and waveform parameters;

[0052] S3, according to the waveform parameter control factor matched in the step S2, match a waveform parameter set that meets the quality of service requirement from the codeb...

Embodiment 2

[0057] see figure 1 , an adaptive adjustment method for multi-carrier waveform parameters of a communication system, comprising the following steps:

[0058] S1, obtain the service quality requirement of the user and the channel environment information fed back by the terminal receiver; the service quality requirement includes requirements for bit error rate and data transmission rate; the channel environment information includes the signal-to-noise ratio of the channel and the data transmission rate. Puller frequency shift parameter;

[0059] S2, matching a set of waveform parameter control factors closest to the channel environment information from a preset codebook that reflects the relationship between quality of service and waveform parameter control factors and waveform parameters;

[0060] S3, according to the waveform parameter control factor matched in the step S2, match a waveform parameter set that meets the quality of service requirement from the codebook;

[006...

Embodiment 3

[0081] A communication system, comprising a terminal transceiver and a base station transceiver, the terminal transceiver and the base station transceiver realize the adjustment of the waveform parameters of the base station transceiver using the adaptive adjustment method of the multi-carrier waveform parameters of the communication system in Embodiment 1 or 2. adaptive adjustment.

[0082] As a preferred embodiment, the base transceiver station obtains the channel environment information in the following manner:

[0083] see Figure 4 , the terminal transceiver performs channel estimation on the data sent by the base station transceiver including removing CP and Fourier transform, and obtains channel environment information including the signal-to-noise ratio of the channel and the Doppler frequency shift parameter, And at the MAC layer, the channel environment information is mapped to the uplink control channel, and after coding and modulation, the operations of adding CP ...

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Abstract

Aiming at the limitation of the prior art, the invention provides the adaptive adjustment method for the multi-carrier waveform parameters of the communication system, and corresponding designs are carried out on transceivers of a terminal and a base station end. A terminal estimates a channel environment and feeds back the channel environment to a base station through an uplink control channel, and the base station correspondingly adjusts parameters of a transmitted waveform, such as CP, subcarrier spacing and the like in combination with the actual communication environment and the requirements of indexes such as bit error rate, transmission rate and the like, so that a more flexible air interface design is realized.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular, to an adaptive adjustment method for multi-carrier waveform parameters of a communication system. Background technique [0002] With the continuous rapid development of mobile communication technologies, new communication systems are not limited to specific wireless access technologies and network transmission technologies, but pay more attention to emerging service application scenarios that can be foreseen in the future. The application scenarios of communication systems are closely related to people's daily activities, and the network presents different characteristics in different scenarios. Places such as residential areas and stadiums are usually densely populated areas, and the network will have the characteristics of large connections and large traffic. However, high-speed rail and other means of transportation show high mobility. Different scena...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04B1/40
CPCH04L27/2601H04L27/2628H04B1/40
Inventor 陈艺莎伍沛然夏明华
Owner SUN YAT SEN UNIV
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