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 problem of inconsistent understanding of UL BWP and DL BWP by network devices and terminal devices on unlicensed frequency bands

Method used

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Examples

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example 1

[0117] When the terminal device can simultaneously detect PDCCHs of multiple DL BWPs, the terminal device monitors PDCCHs at PDCCH monitoring occasions (monitor occasions) of DL BWPs in multiple unlicensed frequency bands. For downlink transmission, gNB listens on the DL BWP that all terminal devices can monitor at the same time. When it detects that the channel is idle (idle), gNB selects one or more channels to send PDCCH for the idle DL BWP, and among them Send PDSCH data 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 (one DL grant and / or one 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 it detects that the channel is idle, the gNB can preferably s...

example 2

[0124] For uplink transmission, gNB listens on the DL BWP that all terminal devices can monitor at the same time. When it detects that the channel is idle, gNB selects one or more channels to send PDCCH (UL grant) for the idle DL BWP, instructing 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 information of the UL BWP for the uplink data transmission in the UL grant according to the detected PDCCH. 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 instruction in the PDCCH.

[0126] For example: the terminal device monitors corresponding PDCCHs on DL BWP1 and DL BWP2 at the same time, and detects a PDCCH on DL BWP1, and the PDCCH instructs the UE to perform uplink transmission on UL BWP1. The terminal device performs LBT on the UL BWP1, and transmits uplink...

example 3

[0129] When the terminal device can only receive or transmit on one active BWP, the gNB and the terminal device switch BWP together. For licensed-assisted transmission, the BWP-related information of the terminal device on the unlicensed cell (unlicensed cell) may be indicated on the licensed cell (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 (Secondary Cell, SCell); or, on the PScell, indicate the BWP related information of the terminal device on the secondary cell On the frequency band, it is OK for the secondary cell to work in the unlicensed frequency band; or, to indicate the BWP related information of the terminal on the first secondary cell on the second secondary cell (other secondary cell), wherein the second secondary cell works on the licensed frequency band, The first secondary cell works on an unlicensed frequency band.

[0131] For example: a new...

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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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