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Channel resource allocation method in multi-packet merging transmission HARQ (Hybrid Automatic Repeat reQuest) system

A channel resource and allocation method technology, applied in the field of resource allocation control, can solve the problems of not being able to adapt well to changes in channel conditions, irrelevant to real-time channel status, etc., to improve channel resource utilization, improve throughput performance, and have wide applications. Foreground effect

Pending Publication Date: 2022-04-12
CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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Problems solved by technology

[0004] Purpose of the present invention: The embodiment of the present invention proposes a channel resource allocation method in a multi-packet combined transmission HARQ system to solve the problem that the existing channel resource allocation strategy has nothing to do with the real-time channel state and cannot well adapt to changes in channel conditions

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  • Channel resource allocation method in multi-packet merging transmission HARQ (Hybrid Automatic Repeat reQuest) system
  • Channel resource allocation method in multi-packet merging transmission HARQ (Hybrid Automatic Repeat reQuest) system
  • Channel resource allocation method in multi-packet merging transmission HARQ (Hybrid Automatic Repeat reQuest) system

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[0056] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0057] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0058] The general problems existing in the existing technical solutions for solving the problem of waste of time slot resources have been described in the background art above. In addition, for a complete resource space, it is quite difficult to fill it ...

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Abstract

The invention discloses a channel resource allocation method in a multi-packet combined transmission HARQ (Hybrid Automatic Repeat reQuest) system, which comprises the following steps of: modeling a transmission channel as an independent and identically distributed block fading channel, calculating the probability distribution of channel capacity, and modeling the probability distribution of an error between a channel capacity estimation value and an actual value as zero mean value normal distribution; before the nth time slot starts, the controller of the receiving end feeds back the data packet decoding result of the (n-1) th time slot, the accumulated mutual information and the channel capacity estimation value of the nth time slot to the transmitting end; in the nth time slot, the controller of the transmitting end calculates a channel resource allocation proportion according to the feedback information and the transmission round of transmitting the data packet in the nth time slot; when 0 lt; plt; and when 1, the HOL data packet and the HOL-next data packet share time slot channel resources in a time-sharing manner and are combined and transmitted in the same time slot. According to the embodiment of the invention, the problem that the existing channel resource allocation strategy is irrelevant to the real-time channel state and cannot well adapt to the change of the channel condition is solved.

Description

technical field [0001] The present invention relates to but not limited to the technical field of resource allocation control of wireless communication technology, in particular to a channel resource allocation method in a multi-packet combined transmission HARQ system. Background technique [0002] In the traditional hybrid automatic repeat request (HARQ) model, all the symbol resources of each time slot are exclusively shared by the sub-codeword of a data packet. However, sometimes the transmitter only needs to allocate a small number of symbols for transmission, and the receiver can Obtaining enough cumulative mutual information, and then decoding is successful, which results in a waste of time slot resources. [0003] At present, the waste of time slot resources can be solved in two ways: one is to dynamically adjust the time slot length through negotiation between the sender and the receiver, which is complicated to implement and will bring additional signaling overhead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W72/04H04L5/00
Inventor 仇启明方正丁良辉杨峰严乾君杨川
Owner CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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