Target system information scheduling method and apparatus

Patent metadata

Field	Value
Publication number	US-12238735-B2
Application number	US-202217670897-A
Country	US
Kind code	B2
Filing date	Feb 14, 2022
Priority date	Aug 16, 2019
Publication date	Feb 25, 2025
Grant date	Feb 25, 2025

Abstract

This application provides a communication method and apparatus, applicable to the communication field, and in particular, to scheduling terminal devices corresponding to different bandwidth sizes or different capabilities. The method includes: A terminal apparatus receives first indication information from a network apparatus. The terminal apparatus receives target system information and/or target downlink control information from the network apparatus on a target frequency domain resource, where a bandwidth size of the target frequency domain resource is less than or equal to a bandwidth size supported by the terminal apparatus, and the target downlink control information is used to schedule the target system information.

First claim

What is claimed is:

1. A communication method, wherein the method comprises:
receiving, by a terminal apparatus, first indication information from a network apparatus, wherein the first indication information is carried on a first physical broadcast channel (PBCH), the first indication information indicates a first frequency domain resource, the first frequency domain resource is used for transmission of first downlink control information, and the first downlink control information is used to schedule first system information; and
receiving, by the terminal apparatus, target system information and/or target downlink control information from the network apparatus on a target frequency domain resource,
wherein a bandwidth size of the target frequency domain resource is less than or equal to a bandwidth size supported by the terminal apparatus, and the target downlink control information is used to schedule the target system information, and
wherein, in response to a bandwidth size of the first frequency domain resource being greater than the bandwidth size supported by the terminal apparatus, the target frequency domain resource is a second frequency domain resource, the second frequency domain resource is different from the first frequency domain resource, and the receiving, by the terminal apparatus, target system information and/or target downlink control information from the network apparatus on the target frequency domain resource comprises:
receiving, by the terminal apparatus, second system information and/or second downlink control information from the network apparatus on the second frequency domain resource, wherein the second downlink control information is used to schedule the second system information.

2. The method according to claim 1 , wherein, in response to the bandwidth size of the first frequency domain resource being less than or equal to the bandwidth size supported by the terminal apparatus, the target frequency domain resource is the first frequency domain resource, and the receiving, by the terminal apparatus, target system information and/or target downlink control information from the network apparatus on a target frequency domain resource comprises:
receiving, by the terminal apparatus, the first downlink control information and/or the first system information from the network apparatus on the first frequency domain resource.

3. The method according to claim 1 , wherein
the first frequency domain resource is the same as a frequency domain resource of a first initial active downlink bandwidth part BWP; and/or
the second frequency domain resource is the same as a frequency domain resource of a second initial active downlink BWP.

4. The method according to claim 1 , wherein the method further comprises:
receiving, by the terminal apparatus, second indication information from the network apparatus, wherein the second indication information is carried on a second PBCH, and the second indication information is used to indicate the second frequency domain resource.

5. A communication method, wherein the method comprises:
sending, by a network apparatus, first indication information, wherein the first indication information is carried on a first physical broadcast channel (PBCH), the first indication information indicates a first frequency domain resource, the first frequency domain resource is used for transmission of first downlink control information, and the first downlink control information is used to schedule first system information;
sending, by the network apparatus, the first downlink control information on the first frequency domain resource; and
sending, by the network apparatus, second downlink control information and/or second system information on a second frequency domain resource, wherein the first frequency domain resource is different from the second frequency domain resource,
wherein a bandwidth size of the first frequency domain resource is greater than a bandwidth size of the second frequency domain resource.

6. The method according to claim 5 , wherein
the first frequency domain resource is the same as a frequency domain resource of a first initial active downlink bandwidth part BWP; and/or
the second frequency domain resource is the same as a frequency domain resource of a second initial active downlink BWP.

7. The method according to claim 5 , wherein the method further comprises:
sending, by the network apparatus, second indication information, wherein the second indication information is carried on a second PBCH, and the second indication information is used to indicate the second frequency domain resource.

8. The method according to claim 5 , wherein
the second frequency domain resource is predefined or configured; or
the second frequency domain resource is one of a plurality of frequency domain resources, and the plurality of frequency domain resources are predefined or configured.

9. The method according to claim 7 , wherein
the first indication information is indication information of a control resource set for a first physical downlink control channel (PDCCH) common search space set, and the control resource set for the first PDCCH common search space set is used to monitor the first downlink control information; and
the second indication information is indication information of a control resource set for a second PDCCH common search space set, and the control resource set for the second PDCCH common search space set is used to monitor the second downlink control information.

10. A communications apparatus, comprising:
one or more processors, and
a memory having instructions stored thereon that, when executed by the one or more processors, cause the communications apparatus to:
receive first indication information from a network apparatus, wherein the first indication information is carried on a first physical broadcast channel (PBCH), the first indication information indicates a first frequency domain resource, the first frequency domain resource is used for transmission of first downlink control information, and the first downlink control information is used to schedule first system information;
receive target system information and/or target downlink control information from the network apparatus on a target frequency domain resource, wherein a bandwidth of the target frequency domain resource is less than or equal to a bandwidth size supported by the communications apparatus, and the target downlink control information is used to schedule the target system information; and
process the target system information and/or the target downlink control information received,
wherein, in response to bandwidth size of the first frequency domain resource being greater than the bandwidth size supported by the communications apparatus, the target frequency domain resource is a second frequency domain resource, the second frequency domain resource is different from the first frequency domain resource, and the instructions further cause the communications apparatus to:
receive second system information and/or second downlink control information from the network apparatus on the second frequency domain resource, wherein the second downlink control information is used to schedule the second system information.

11. The communications apparatus according to claim 10 , wherein, in response to, the bandwidth size of the first frequency domain resource being less than or equal to the bandwidth size supported by the communications apparatus, the target frequency domain resource is the first frequency domain resource, and the instructions further cause the communications apparatus to:
receive, on the first frequency domain resource, the f

Assignees

• Huawei Tech Co Ltd

Inventors

• Hou Hailong
• Li Chaojun

Classifications

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04L5/0094

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

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04W48/12

  using downlink control channel · CPC title