Information transmission method and device, base station, and user equipment

Patent metadata

Field	Value
Publication number	US-2021006382-A1
Application number	US-201816969554-A
Country	US
Kind code	A1
Filing date	Feb 13, 2018
Priority date	Feb 13, 2018
Publication date	Jan 7, 2021
Grant date	—

Abstract

The present disclosure provides an information transmission method and device, a base station, and user equipment. Said method comprises: determining system control information of a scalable band width part (BWP), the system control information being used to inform target user equipment of configuration information of the scalable BWP in a licensed spectrum and an unlicensed spectrum respectively; sending the system control information of the scalable BWP to the target user equipment; and according to the system control information, scheduling, on the scalable BWP and, the target user equipment to transmit information. The information transmission method provided by the present disclosure can be used to improve the configuration flexibility and effective utilization rate of the unlicensed spectrum resources.

First claim

1 . A method for transmitting information, being applied in a base station, the method comprising:
determining system control information of for an extensible Band Width Part (BWP), the system control information being configured to inform a target User Equipment (UE) configurations in a licensed band and an unlicensed band of the extensible BWP; sending the system control information for the extensible BWP to the target UE; and scheduling, according to the system control information, the target UE to perform information transmission on the extensible BWP.

2 . The method of claim 1 , wherein the determining the system control information for the extensible BWP comprises:
in response to determining that a preset trigger condition is met, configuring, for the target UE, a resource of the extensible BWP in the licensed band and a resource of the extensible BWP in the unlicensed band; and determining the system control information for the extensible BWP according to a time-frequency range of the resource of the extensible BWP in the licensed band and the resource of the extensible BWP in the unlicensed band.

3 . The method of claim 2 , wherein the preset trigger condition comprises at least one of:
traffic to be transmitted for the target UE exceeding a preset traffic threshold; a type of a service to be transmitted for the target UE comprising a preset service type; or a power consumption of the target UE being no greater than a preset power consumption threshold.

4 . The method of claim 2 , wherein configuring, for the target UE, the resource of the extensible BWP in the unlicensed band comprises:
configuring, for the target UE, the resource of the extensible BWP in the unlicensed band on a preset channel in the unlicensed band; or configuring, for the target UE, the resource of the extensible BWP in the unlicensed band according to a historical record of scheduling the target UE in the unlicensed band.

5 . The method of claim 2 , wherein configuring, for the target UE, the resource of the extensible BWP in the unlicensed band comprises:
monitoring an effective transmission resource meeting a preset channel quality condition in the unlicensed band; and configuring, for the target UE, the resource of the extensible BWP in the unlicensed band according to the effective transmission resource.

6 . The method of claim 5 , wherein the monitoring the effective transmission resource meeting the preset channel quality condition in the unlicensed band comprises:
determining a target frequency range supported by the target UE in the unlicensed band; and monitoring the effective transmission resource meeting the preset channel quality condition in the target frequency range, wherein the monitoring the effective transmission resource meeting the preset channel quality condition in the target frequency range comprises: monitoring, according to a preset channel bandwidth, a channel quality value of a preset channel in the target frequency range; and in response to determining that the channel quality value is no less than a preset channel quality threshold, determining the preset channel as an effective channel, wherein the configuring, for the target UE, the resource of the extensible BWP in the unlicensed band according to the effective transmission resource comprises: determining a time-domain resource range allocated to the target UE on the effective channel; and determining a time-frequency range of the resource of the extensible BWP in the unlicensed band according to the time-domain resource range and the preset channel bandwidth of the effective channel.

7 . (canceled)

8 . The method of claim 5 , wherein the monitoring the effective transmission resource meeting the preset channel quality condition in the unlicensed band comprises:
monitoring a full-band effective transmission resource meeting the preset channel quality condition in the unlicensed band; determining a target frequency range supported by the target UE in the unlicensed band; and determining the effective transmission resource according to an overlapping frequency range where the full-band effective transmission resource and the target frequency range overlap.

9 . (canceled)

10 . The method of claim 1 , wherein the system control information for the extensible BWP comprises: a time-frequency range of a resource in the licensed band, a time-frequency range of a resource in the unlicensed band, and configuration of a resource for transmitting control information among the resource in the licensed band and the resource in the unlicensed band.

11 . The method of claim 1 , wherein the sending the system control information for the extensible BWP to the target UE comprises: sending, to the target UE, preset Downlink Control Information (DCI) for a resource in the unlicensed band by at least one of:
sending the preset DCI to the target UE by loading the preset DCI onto a resource for transmitting control information in the licensed band; or sending the preset DCI to the target UE by loading the preset DCI onto a resource for transmitting control information in the unlicensed band, wherein the preset DCI comprises information on scheduling of the resource in the unlicensed band.

12 . The method of claim 1 , wherein the scheduling, according to the system control information, the target UE to perform information transmission on the extensible BWP comprises:
sending, to the target UE, activation indication indicating that the extensible BWP is activated; in response to determining that the target UE has completed transmission configuration according to the activation indication and the system control information, scheduling the target UE to perform information transmission on the extensible BWP.

13 . The method of claim 12 , comprising: before the sending, to the target UE, the activation indication indicating that the extensible BWP is activated,
in response to determining that the target UE is being scheduled on a first BWP in the licensed band, sending, to the target UE, deactivation indication for deactivating the first BWP.

14 . The method of claim 1 , wherein the determining the system control information for the extensible BWP comprises:
determining, according to preset reference indication sent by the target UE, whether the target UE is supporting transmission over the unlicensed band; in response to determining that the target UE is supporting transmission over the unlicensed band, determining the system control information for the extensible BWP.

15 . The method of claim 1 , wherein the determining the system control information for the extensible BWP for the target UE comprises:
determining, according to at least one of a service bearing condition or a power consumption of the base station, whether the base station is supporting unlicensed band resource configuration; in response to determining that the base station is supporting unlicensed band resource configuration, determining the system control information for the extensible BWP for the target UE.

16 . A method for transmitting information, being applied in User Equipment (UE), the method comprising:
acquiring system control information for an extensible Band Width Part (BWP), the extensible BWP comprising a resource in a licensed band and a resource in an unlicensed band; in response to receiving activation indication indicating that the extensible BWP is activated, configuring, according to the system control information, transmission over the extensible BWP; and transmitting information to a base station using the ext

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Zhou Juejia

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0094 Primary

  Indication of how sub-channels of the path are allocated · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title