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Wake-up signal WUS detection method and device

A wake-up signal and detection method technology, applied in wireless communication, signaling allocation, transmission path sub-channel allocation, etc., can solve the problems of affecting WUS reception performance, large signaling overhead of network-side equipment, and excess.

Pending Publication Date: 2021-01-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Assuming that a Group-based WUS indicates 5 UEs in total, the PUCCH resource information used to indicate the feedback information of these 5 UEs in the Group-based WUS needs to occupy 25 bits, plus the wake-up information used to wake up the UE, then It may exceed the number of bits that Group-based WUS can carry, or affect the receiving performance of WUS
[0004] Therefore, the usual practice is to reduce the number of UEs indicated in each Group-based WUS, and correspondingly reduce the information of the PUCCH resources carried in the Group-based WUS for indicating UE feedback information, but in this way, the total number of UEs that need to be indicated If the quantity remains unchanged, it is necessary to send more Group-based WUS to indicate all UEs, resulting in excessive signaling overhead on the network side equipment

Method used

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  • Wake-up signal WUS detection method and device
  • Wake-up signal WUS detection method and device
  • Wake-up signal WUS detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0153]Example 1: TakingPicture 9 The WUS detection process shown as an example is explained, including the following steps:

[0154]Step 9.1 (e.g.Picture 9 Step 1) shown in Figure 1: The network side sends a second message to the terminal device, and the second message is used to configure the first PUCCH resource used when the terminal device feeds back information.

[0155]Optionally, the second message also includes the PUCCH transmission time offset, the PUCCH transmission time offset includes: the time interval between the time of receiving WUS and the time of sending PUCCH feedback information, or the terminal device The time interval between the time when the wake-up mode of discontinuous reception of the DRX state starts and the time when PUCCH feedback information is sent.

[0156]Step 9.2: The terminal device receives the second message sent by the network side device.

[0157]Step 9.3: The network side device sends WUS to the terminal device.

[0158]Optionally, the PUCCH transmission t...

Embodiment 2

[0165]Embodiment 2: TakePicture 10 The WUS detection process shown as an example is explained, including the following steps:

[0166]Step 10.1 (e.g.Picture 10 Step 1) shown in Figure 1: The network side sends a second message to the terminal device, and the second message is used to configure the first PUCCH resource used when the terminal device feeds back information.

[0167]Optionally, the second message also includes the PUCCH transmission time offset, the PUCCH transmission time offset includes: the time interval between the time of receiving WUS and the time of sending PUCCH feedback information, or the terminal device The time interval between the time when the wake-up mode of discontinuous reception of the DRX state starts and the time when PUCCH feedback information is sent.

[0168]Step 10.2: The terminal device receives the second message sent by the network side device.

[0169]Step 10.3: The network side device sends WUS to the terminal device.

[0170]Optionally, the PUCCH transmis...

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Abstract

The embodiment of the invention relates to a wake-up signal WUS detection method and device, and is used for reducing the signaling overhead of network side equipment. The WUS detection method comprises the steps that terminal equipment detects a special domain of the terminal equipment in a detected WUS; if the special domain of the terminal equipment is detected in the WUS and the WUS is detected to comprise the awakening information of the terminal equipment, the terminal equipment determines a first physical uplink control channel PUCCH resource corresponding to a first index by taking theposition information of the special domain of the terminal equipment as the first index, and sends the first PUCCH, wherein the first PUCCH comprises a first message used for feeding back and receiving wake-up information of the terminal equipment.

Description

Technical field[0001]The present invention relates to the field of wireless communication technology, and in particular to a method and device for detecting a wake-up signal WUS.Background technique[0002]The network-side device can send a physical downlink control channel (Physical Downlink Control Channel, PDCCH) wake-up signal (Wake-up signal, WUS) to multiple UEs (User Equipment) through Group-based WUS (group-based wake-up signal) The Group-based WUS carries wake-up information for waking up the UE, and also carries information for indicating physical uplink control channel (PUCCH) resources for each UE to feedback information. The UE can use the PUCCH resource used to indicate the UE feedback information to feed back to the network side device whether a wake-up information message is received.[0003]The information indication generally used to indicate the PUCCH resource for each UE to feedback information needs to occupy 4-6 bits. Assuming that a Group-based WUS indicates a tot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W72/04H04W76/28
CPCH04W76/28H04W52/0229H04W72/21H04W72/23Y02D30/70H04W52/0258H04W52/028H04L1/1861H04W52/0216H04L5/0053H04W68/005
Inventor 周涵铁晓磊花梦
Owner HUAWEI TECH CO LTD