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Self-organizing network channel state indication feedback method and device

A channel status indicator and self-organizing network technology, applied in network traffic/resource management, transmission path sub-channel allocation, wireless communication, etc., can solve the problems of long broadcast cycle, affecting network performance, wasting air interface resources, etc., and achieve feedback overhead Minimize, improve transmission efficiency, reduce the effect of invalid feedback

Inactive Publication Date: 2019-01-04
BEIJING XINWEI TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When there are many adjacent nodes, the overhead of the broadcast channel is greatly increased, and the feedback cycle also becomes very large. On the one hand, it carries the channel status indication between two nodes without traffic transmission, which wastes air interface resources. On the one hand, it also leads to an increase in the demodulation threshold of the broadcast channel, increasing the possibility of receiving nodes to decode broadcast information incorrectly; at the same time, due to the long broadcast cycle, the channel status cannot be fed back in time, which greatly reduces the service transmission rate of the service sending node , affecting network performance

Method used

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  • Self-organizing network channel state indication feedback method and device
  • Self-organizing network channel state indication feedback method and device
  • Self-organizing network channel state indication feedback method and device

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Embodiment 1

[0018] figure 1 The flow chart of the method for feedbacking the channel state indication of the ad hoc network provided by Embodiment 1 of the present invention, this embodiment is applicable to the case of feedbacking the channel state indication, and the method can be executed by a network node, and specifically includes the following steps:

[0019] Step S110. Allocate channel resources according to the received channel resource reservation request, obtain channel state indications of the allocated channel resources, and generate resource authorization information based on the allocated channel resources.

[0020] With the transmission of multimedia data services and the increasing number of users, the limited wireless channel resources in wireless communication systems need to be allocated and utilized reasonably. The channel resource is a fixed frequency bandwidth in FDMA (Frequency Division Multiple Access, frequency division multiple access); in TDMA (Time Division Mul...

Embodiment 2

[0027] figure 2 It is a flow chart of the feedback method for the channel state indication of the ad hoc network provided by Embodiment 2 of the present invention. In this embodiment, on the basis of the first embodiment above, step S120 is optimized, specifically including the following steps:

[0028] Step S121. Determine the number of bits of the neighbor node ID according to the network scale.

[0029] The number of bits of the node ID limits the scale of the network. If the node ID is represented by 4 bits, the maximum network scale is 16 nodes (numbered 0-15). Therefore, it is necessary to determine the number of bits of the node ID according to the scale of the network. For example, if the network has N nodes, the number of bits of the node ID needs at least ceil(log2(N)) bits, where log2(N) represents the logarithm of 2 to the base N , ceil () represents the upward rounding operation, that is to say, the number of bits can generally be slightly larger to retain a ce...

Embodiment 3

[0054] image 3 The structural diagram of the device for feedbacking the channel state indication of the ad hoc network provided by Embodiment 3 of the present invention. This embodiment is applicable to the case of feedbacking the channel state indication. The specific structure of the device is as follows:

[0055] The obtaining unit 310 is configured to allocate channel resources according to the received channel resource reservation request, obtain channel state indications of the allocated channel resources, and generate resource authorization information based on the allocated channel resources;

[0056] The sending unit 320 is configured to send the channel state indication and resource authorization information to the sender of the channel resource reservation request through pre-allocated static channel resources.

[0057] Among them, also include:

[0058] The feedback unit 330 is configured to periodically feed back the channel state indication to the sender of the...

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Abstract

The present invention discloses a self-organizing network channel state indication feedback method, a self-organizing network channel state indication feedback device, a node device and a storage medium. The feedback method includes the following steps that: a channel resource is allocated according to a received channel resource reservation request, the channel state indication of the allocated channel resource is acquired, and resource authorization information is generated based on the allocated channel resource; and the channel state indication and resource authorization information are transmitted to the sender of the channel resource reservation request through a pre-allocated static channel resource. According to the self-organizing network channel state indication feedback method,the self-organizing network channel state indication feedback device, the node device and the storage medium of the invention, by means of channel state indication feedback triggering mode and messagedesign, only channel state information between nodes with service transmission is fed back, and therefore, invalid feedback can be reduced, and feedback overhead can be minimized; and the channel state indication can be fed back timely and effectively, the efficiency of transmission between the nodes can be improved, and the performance of a self-organizing network can be improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a feedback method and device for an ad hoc network channel state indication. Background technique [0002] As a technology widely used in the field of wireless mobile communications, ad hoc networks have the characteristics of distributed, fast deployment, dynamic topology changes, and multi-hop networks. Each node in the self-organizing network is equal, and each node transmits data in the corresponding time slot according to the allocation rules. In the prior art, for low-rate services, such as voice services, data is sent through statically configured resources; During the handshake process, the time slot for data transmission is obtained. In a wireless communication system, the receiving node of a service transmission needs to feed back a channel state indication (Channel State Indication, CSI) to the sending node, and the channel state indication includes a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/00H04W28/26H04W72/04
CPCH04L1/0026H04L5/0057H04W28/26H04W72/20
Inventor 余秋星王贵兴王鹏
Owner BEIJING XINWEI TELECOM TECH