Signal processing method and device

A technology of signal processing and terminal equipment, which is applied in the field of communication, can solve problems such as inconsistency between ULBWP and DLBWP, and achieve the effect of improving communication reliability and effectiveness

Active Publication Date: 2020-01-24
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] An object of the embodiments of the present invention is to provide a signal processing method and device to solve the p

Method used

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Examples

Experimental program
Comparison scheme
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Example

[0116] Example 1:

[0117] When the terminal device can detect the PDCCH of multiple DL BWPs at the same time, the terminal device monitors the PDCCH at the PDCCH monitoring occasion (monitor occasion) of the DL BWP of multiple unlicensed frequency bands. For downlink transmission, the gNB listens on the DL BWP that all terminal devices can monitor at the same time. When the channel is idle, the gNB selects one or more channels as the idle DL BWP to send the PDCCH. PDSCH data is sent on one or more DL BWPs.

[0118] When a terminal device detects PDCCHs of multiple DL BWPs at the same time, the terminal device only expects to receive one PDCCH (a DL grant and / or a UL grant) at the same time. If the terminal device receives multiple PDCCHs (multiple DL grants and / Or multiple UL grants), it is an error case.

[0119] At this time, the gNB listens on the DL BWP that all terminal devices can monitor at the same time. When the channel is idle, the gNB can preferably select a DL BWP to...

Example

[0123] Example 2:

[0124] For uplink transmission, gNB listens on the DL BWP that all terminal devices can monitor at the same time. When it hears that the channel is idle, gNB selects one or more channels as idle DL BWP to send PDCCH (UL grant) to instruct the terminal The device sends PUSCH data on one or more UL BWPs.

[0125] The terminal device monitors the PDCCH on multiple DL BWPs, and obtains the UL BWP information of the uplink data transmission in the UL grant according to the PDCCH detected by the monitoring. The terminal device performs LBT on the corresponding UL BWP, and when it detects that the channel is idle, it performs uplink data transmission according to the UL grant indication in the PDCCH.

[0126] For example, the terminal device simultaneously monitors the corresponding PDCCH on DL BWP1 and DL BWP2, and detects the PDCCH on DL BWP1, and the PDCCH instructs the UE to perform uplink transmission on UL BWP1. The terminal device performs LBT on UL BWP1, and wh...

Example

[0128] Example 3:

[0129] When the terminal device can only receive or send on one active BWP, the gNB and the terminal device switch the BWP together. For licensed-assisted transmission, the BWP related information of the terminal device on the unlicensed cell can be indicated in the licensed cell.

[0130] For example: on the primary cell (Primary Cell, PCell), indicate the BWP related information of the terminal device on the secondary cell (SecondaryCell, SCell); or indicate on the PScell ​​the BWP related information of the terminal device on the secondary cell, and the PScell ​​is working in authorization On the frequency band, it is OK for the secondary cell to work in an unlicensed frequency band; or, on the second secondary cell (other secondary cells) to indicate the BWP related information of the terminal on the first secondary cell, where the second secondary cell works on the authorized frequency band, The first secondary cell works on an unlicensed frequency band.

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Abstract

Embodiments of the present invention provide a signal processing method and device. The method comprises: performing PDCCH monitoring on one or more first DL BWPs in an unlicensed frequency band; andobtaining DL BWP related information or UL BWP related information from the PDCCH. The embodiments of the present invention can solve the problem that network equipment and terminal equipment are inconsistent in understanding of UL BWP and DL BWP on an unlicensed frequency band.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a signal processing method and device. Background technique [0002] In the fifth generation (5th Generation, 5G) communication system, or called the new air interface (New Radio, NR) system, the unlicensed frequency band can be used as a supplement to the licensed frequency band (licensed band) to help operators expand the service . In order to be consistent with NR deployment and maximize NR-based unlicensed access, the unlicensed frequency band can work in the 5GHz, 37GHz and 60GHz frequency bands. The large bandwidth (80 or 100 MHz) of the unlicensed frequency band can reduce the implementation complexity of the base station and terminal equipment (for example: user equipment (User Equipment, UE)). Since the unlicensed frequency band is shared by a variety of Radio Access Technology (RATs), such as: Wireless Fidelity (Wireless Fidelity, W...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04L5/00
CPCH04L5/0053H04W72/23H04L5/001H04W74/0808H04W72/0453H04L5/0098H04W16/14H04W24/08H04W72/542
Inventor 姜蕾潘学明鲁智
Owner VIVO MOBILE COMM CO LTD
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