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Method and device for radio link monitoring

A technology of radio link and user equipment, applied in the field of communication, can solve the problems of different flexibility, complex RLM performance requirements, etc.

Active Publication Date: 2022-04-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present application provides a radio link monitoring method to solve the problem that the definition of RLM performance requirements in the prior art is complex and cannot provide due flexibility by adjusting thresholds to support different specific systems

Method used

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  • Method and device for radio link monitoring
  • Method and device for radio link monitoring
  • Method and device for radio link monitoring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] When the UE determines the synchronization threshold according to the bit error rate BLER mapping of the system synchronization SS block received by the UE, the present application provides a radio link monitoring method, and the specific implementation of the method may include the following steps (the method flow is as follows: figure 1 shown):

[0060] Step 101, when the UE performs radio link monitoring, the user equipment UE monitors the downlink signal of the primary serving cell to obtain the monitoring result;

[0061] Step 102, the UE compares the monitoring result with the obtained synchronization threshold to determine whether the UE is in the synchronization state; wherein, the synchronization threshold is obtained according to the bit error rate BLER mapping of the system synchronization SS block received by the UE .

[0062] Because the SS block of NR does not contain PDCCH, the hypothetical PDCCH method provided in LTE cannot be used to implement RLM. Ba...

Embodiment 2

[0077] In order to provide flexibility for NR RLM to support different types of systems, the present invention also proposes to allow the network to adjust and configure the synchronization threshold for each UE (the UE determines the synchronization threshold according to the parameter value preconfigured by the network side device). The embodiment of the present application provides a radio link monitoring method (such as figure 2 shown), including:

[0078] Step 201, when the UE performs radio link monitoring, monitor the downlink signal of the primary serving cell to obtain the monitoring result;

[0079] Step 202, the UE compares the monitoring result with the obtained synchronization threshold to determine whether the UE is in a synchronization state; wherein the synchronization threshold is a parameter value pre-configured by the network side device.

[0080] In the embodiment of this application, the network side device directly configures the synchronization thresho...

Embodiment 3

[0086] Such as image 3 As shown, the present application also provides another radio link monitoring method, which may include the following steps:

[0087] Step 301, the network side device sends a preset synchronization threshold to the UE through a signal instruction;

[0088] Step 302, when the UE performs radio link monitoring, it monitors the downlink signal of the primary serving cell to obtain a monitoring result, and compares the monitoring result with the preset synchronization threshold to determine whether the UE is in the synchronization state.

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Abstract

The present application discloses a radio link monitoring method and device. The method includes: when the user equipment UE performs radio link monitoring, the user equipment UE monitors the downlink signal of the primary serving cell to obtain the monitoring result; The monitoring result is compared with the obtained synchronization threshold to determine whether the UE is in a synchronization state; wherein, the synchronization threshold is determined according to a preset parameter value. It solves the problem in the prior art that it is complicated to define the RLM performance requirement, and the problem that due flexibility cannot be provided by adjusting the threshold to support different specific systems.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a radio link monitoring method and device. Background technique [0002] The RLM (radio link monitoring, radio link monitoring) function is for a UE (user equipment, user equipment) to monitor the downlink signal quality of the primary serving cell, so as to determine whether the UE is in a synchronized or out-of-synchronized state. [0003] The existing LTE RLM design and implementation are specifically as follows: define a hypothetical physical downlink control channel (hypotheticalphysical downlink control channel, hypothetical PDCCH) and give the BLER (block error rate, loss Packet rate); in UE design, realize the mapping from the BLER of the assumed PDCCH to the synchronization and out-of-sync threshold; in UERLM operation, measure the downlink radio link quality from CRS (cell specific reference signal, cell specific reference signal), and The measurem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00
CPCH04W56/001H04W56/0025H04W56/00H04W72/04H04W24/08H04W76/18H04W48/10H04J11/0069H04B17/309
Inventor 达人任斌郑方政赵铮
Owner DATANG MOBILE COMM EQUIP CO LTD
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