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Interference control method and device, message sending method and device, message forwarding method and device, communication equipment and system

A technology of interference control and transmission method, which is applied in the field of communication, can solve the problems of propagation distance extension, uplink signal interference, propagation delay exceeding the guard gap, etc., and achieve beneficial effects

Active Publication Date: 2019-12-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the atmospheric ducting phenomenon occurs, the distance that the downlink radio signal of a base station can propagate is extended, and the propagation delay exceeds the protective gap (Protective Gap, GP), which causes the uplink signal of another base station to be interfered

Method used

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  • Interference control method and device, message sending method and device, message forwarding method and device, communication equipment and system
  • Interference control method and device, message sending method and device, message forwarding method and device, communication equipment and system
  • Interference control method and device, message sending method and device, message forwarding method and device, communication equipment and system

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Embodiment 1

[0035]Under certain weather conditions, the low density at higher altitudes in Earth's atmosphere causes a decrease in the refractive index, bending the signal toward Earth. In this case, the signal can propagate in the higher index layer, ie the atmospheric duct, due to the reflection and refraction encountered at the boundary of the low index material. This phenomenon is called atmospheric ducting, and in the atmospheric ducting mode of propagation, radio signals experience less attenuation and are able to travel over distances far greater than normal radiation. Atmospheric ducting phenomenon usually occurs in the spring-summer transition period and summer-autumn transition period in inland areas and winter in coastal areas, and its affected frequency ranges from about 0.3GHz to 30GHz.

[0036] At present, in a TDD (Time Division Duplexing, Time Division Duplexing) network configured with the same uplink and downlink transmission directions, guard gaps are used to avoid cros...

Embodiment 2

[0097] This embodiment will introduce the process of sending response messages on the attacker node side in the atmospheric waveguide interference control scheme in combination with the previous embodiments. Please refer to Figure 8 :

[0098] S802: The base station of the attacker performs reference signal monitoring.

[0099] In an example of this embodiment, after receiving the message notification from the network management, the group center node of the attacker node group may instruct the base stations in the group to monitor the atmospheric waveguide interference. The attacker base station monitors the atmospheric waveguide interference after receiving the monitoring instruction from the group center node, so as to determine whether it can monitor the reference signal sent by the victim base station.

[0100] In other examples of this embodiment, each base station of the attacker node group can monitor the reference signal without being notified and triggered by the g...

Embodiment 3

[0121] This embodiment will continue to introduce the process of sending response messages on the attacker node side in the atmospheric waveguide interference control scheme in combination with the previous embodiments. The difference from Embodiment 2 is that the response messages in this embodiment are not sent by the attacker base station itself. , but sent by the group center node of the attacker node group, see Figure 9 :

[0122] S902: The group central node obtains the monitoring result of the reference signal by the base stations in the node group.

[0123]In an example of this embodiment, after receiving the message notification from the network management, the group center node of the attacker node group may instruct the base stations in the group to monitor the atmospheric waveguide interference. After receiving the monitoring instruction from the group center node, the attacker base station monitors the atmospheric waveguide interference, and reports the monitori...

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Abstract

The embodiment of the invention provides an interference control method and a device, a message sending method and a device, a message forwarding method and a device, communication equipment and a system. A reference signal sent by the victim base station has an addressing identifier; the addressing identifier corresponds to routing information of the victim node group; therefore, when the attacker base station monitors the reference signal, the attacker node group can send a response message to the victim node group according to the addressing identifier, so that the victim base station in the victim node group can determine that the attacker base station has received the reference signal sent by itself according to the response message, and then other processes of atmospheric waveguide interference control are continued. The attacker base station side sends the message to the victim base station side so as to inform the victim base station that the attacker base station has monitoredthe reference signal, so that the victim base station can continue to cooperate with the attacker base station to carry out the subsequent process of atmospheric waveguide interference control, and the implementation of atmospheric waveguide interference control is facilitated.

Description

technical field [0001] The present invention relates to the communication field, in particular to an interference control, message sending and forwarding method, device, communication equipment and system. Background technique [0002] When the atmospheric ducting phenomenon occurs, the distance that the downlink radio signal of one base station can propagate is extended, and the propagation delay exceeds the protective gap (GP), which causes the uplink signal of another base station to be interfered. At present, the base station that is interfered is called a victim node, and the base station that interferes with the victim base station is called an aggressor node. At present, some effective solutions are urgently needed to reduce or eliminate the atmospheric waveguide interference. Contents of the invention [0003] In order to solve the above problems, embodiments of the present invention provide an interference control, message sending, and forwarding method, device, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/26H04W24/02
CPCH04W8/26H04W24/02H04W92/20H04J11/0056H04B17/345H04L5/0048
Inventor 李大鹏高音刘旸
Owner ZTE CORP
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