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A method and device for determining a hidden node

A technology of hiding nodes and determining methods, which is applied in the field of communication and can solve problems such as high communication overhead

Active Publication Date: 2020-04-28
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for determining a hidden node, so as to solve the problem that in the existing hidden node discovery technology, as the number of UEs increases, the communication overhead of UE reporting RSSI measurement results is large

Method used

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  • A method and device for determining a hidden node
  • A method and device for determining a hidden node
  • A method and device for determining a hidden node

Examples

Experimental program
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Effect test

no. 1 example

[0093] An embodiment of the present invention provides a method for determining a hidden node, which is applied to a terminal, see figure 2 , the method for determining the hidden node includes:

[0094] S201. Receive a first RSSI measurement result measured in a first measurement interval and sent by a base station in a broadcast or multicast manner.

[0095] Wherein, the first measurement interval is a measurement interval configured by the base station itself, and the first RSSI measurement result is an RSSI measurement result of the base station itself.

[0096] Wherein, the base station can broadcast the first RSSI measurement result to the terminal through a MIB (Master Information Block, main system information block) message or a SIB (System Information Block, system information block) message, or the base station can transmit the first RSSI measurement result to the terminal through an MBSFN (Multimedia Broadcast multicast service Single FrequencyNetwork, a subframe...

no. 2 example

[0202] An embodiment of the present invention provides a method for determining a hidden node, which is applied to a base station, such as Figure 11 As shown, the determination method of the hidden node includes:

[0203] S1101. Send the first RSSI measurement result measured in the first measurement interval to the terminal in a broadcast or multicast manner.

[0204] Wherein, the first measurement interval is a measurement interval configured by the base station itself, and the first RSSI measurement result is an RSSI measurement result of the base station itself.

[0205] Wherein, the base station can broadcast the first RSSI measurement result to the terminal through a MIB (Master Information Block, main system information block) message or a system information block SIB (System Information Block) message, or the base station can transmit the first RSSI measurement result to the terminal through an MBSFN (Multimedia Broadcast multicast service Single FrequencyNetwork, a ...

no. 3 example

[0222] An embodiment of the present invention provides a device for determining a hidden node, which is applied to a terminal, such as Figure 12 As shown, the device for determining the hidden node includes:

[0223] The first receiving module 1201 is configured to receive the first RSSI measurement result measured in the first measurement interval and sent by the base station in a broadcast or multicast manner.

[0224] Wherein, the first measurement interval is a measurement interval configured by the base station itself, and the first RSSI measurement result is an RSSI measurement result of the base station itself.

[0225] The first processing module 1202 is configured to determine whether there is a hidden node outside the CCA listening range of the base station according to the second RSSI measurement result and the first RSSI measurement result measured by the terminal in the second measurement interval.

[0226] That is, when the first receiving module 1201 of the te...

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Abstract

The invention provides a method and apparatus for determining hidden nodes. The method applied to a terminal for determining hidden nodes includes the steps of receiving a first received signal strength indication (RSSI) measurement result measured at a first measurement zone and sent through a broadcast or multicast means, and determining the existence of hidden nodes outside the clear channel assessment (CCA) interception scope of a base station according to a second RSSI measurement result measured at a second measurement zone and the first RSSI measurement result. In the embodiment, a base station sends the RSSI measurement results of the base station to a terminal through a broadcast or multicast means, and the terminal determines the existence of hidden nodes outside the CCA interception scope of the base station according to the RSSI measurement result of the terminal and the RSSI measurement result of the base station. In this way, the terminal does not need to send all measurement results to the base station. On the prerequisite of ensuring hidden node discovery capability, the method and apparatus further reduce the communication cost between the base station and the terminal.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for determining a hidden node. Background technique [0002] In order to improve the discovery probability of hidden nodes in the prior art, a better solution is: eNB (EvolvedNode B, evolved Node B, referred to as eNB) configures the same RSSI for multiple UEs (User Equipment, user equipment) ( Received Signal Strength Indication, Received Signal Strength Indication) measurement interval, the eNB and these UEs simultaneously perform RSSI measurement within the configured RSSI measurement interval. Furthermore, the eNB configures the same or different RSSI reporting windows for these UEs, so as to disperse uplink transmission pressure. However, when the number of UEs is large, it may result in high communication overhead. [0003] Such as figure 1 As shown, it is assumed that the eNB configures the same RSSI measurement duration (RSSI measurem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W24/02H04W24/08
CPCH04W24/02H04W24/08H04W24/10
Inventor 柯颋刘建军侯雪颖童辉王锐沈晓冬
Owner CHINA MOBILE COMM LTD RES INST
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