US-20260129624-A1 - RESOURCE INDICATION METHOD AND APPARATUS

US20260129624A1US 20260129624 A1US20260129624 A1US 20260129624A1US-20260129624-A1

Abstract

This application provides a resource indication method and an apparatus, and relates to the field of wireless communication technologies. In this application, a first apparatus can learn of a resource of a first network. The method includes: A first apparatus receives first information, and determines an available resource or an unavailable resource of a first network based on the first information. The first apparatus is served by the first network. The first network may be an ambient internet of things A-IoT. The first network and a long term evolution LTE network may be jointly deployed, and/or the first network and a narrowband internet of things NB-IoT may be jointly deployed. The first apparatus may be a terminal device.

Inventors

Chao Han
Zhihu Luo
Zhe Jin

Assignees

HUAWEI TECHNOLOGIES CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20251231
Priority Date: 20230704

Claims (20)

1 . A resource indication method, comprising: receiving first information; and determining an available resource, or an unavailable resource, of a first network based on the first information.
2 . The method according to claim 1 , wherein the first information indicates a time-frequency resource occupied by the first network is within a time-frequency resource of a second network, or the first information indicates a time-frequency resource occupied by the first network is outside a time-frequency resource of a second network.
3 . The method according to claim 2 , wherein the first information indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network comprises: the first information indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network in a first state, or the first information indicates the time-frequency resource occupied by the first network is outside the time-frequency resource of the second network comprises: the first information indicates the time-frequency resource occupied by the first network is outside the time-frequency resource of the second network in a first state, wherein the first state comprises at least one of: a first apparatus is in an idle state or a connected state, or the first apparatus has accessed the first network, and the method is applied to the first apparatus.
4 . The method according to claim 1 , wherein the first information indicates an antenna port quantity of the second network, and the antenna port quantity comprises a first antenna port quantity, a second antenna port quantity, and a third antenna port quantity, and a state value of the first information comprises a first value and a second value, wherein the first value indicates the first antenna port quantity and/or the second antenna port quantity, and resource mapping patterns corresponding to the first antenna port quantity and the second antenna port quantity are the same, and the second value indicates the third antenna port quantity.
5 . The method according to claim 4 , wherein the first antenna port quantity is 1, the second antenna port quantity is 2, and the third antenna port quantity is 4.
6 . The method according to claim 4 , wherein the state value of the first information further comprises a third value, the first value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network, the second value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network, and the third value indicates the time-frequency resource occupied by the first network is outside the time-frequency resource of the second network or that the second network is not deployed, or the third value is a reserved state.
7 . The method according to claim 4 , wherein the antenna port is of a cell-specific reference signal (CRS), and the available resource of the first network does not comprise a time domain symbol occupied by the CRS, or the unavailable resource of the first network comprises a time domain symbol occupied by the CRS.
8 . The method according to claim 4 , wherein the first information indicates a symbol quantity of a control channel of the second network, and the symbol quantity comprises a first symbol quantity, a second symbol quantity, and a third symbol quantity, and the state value of the first information comprises a fourth value, a fifth value, and a sixth value, wherein the fourth value indicates the first symbol quantity, the fifth value indicates the second symbol quantity, and the sixth value indicates the third symbol quantity.
9 . The method according to claim 8 , wherein the state value of the first information further comprises a seventh value, the fourth value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network, the fifth value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network, the sixth value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network, and the seventh value indicates the time-frequency resource occupied by the first network is outside the time-frequency resource of the second network or that the second network is not deployed, or the seventh value is the reserved state.
10 . The method according to claim 8 , wherein the available resource of the first network does not comprise a time domain symbol occupied by the control channel, or the unavailable resource of the first network comprises a time domain symbol occupied by the control channel.
11 . The method according to claim 8 , wherein in association with the state value of the first information including the first value, the second value, the fourth value, the fifth value, or the sixth value, the first network and the second network are jointly deployed or coexist.
12 . The method according to claim 1 , wherein the first information indicates a time-frequency resource occupied by the first network is within a time-frequency resource of a second network and within a time-frequency resource of a third network, the first information indicates a time-frequency resource occupied by the first network is within a time-frequency resource of a second network and outside a time-frequency resource of a third network, the first information indicates a time-frequency resource occupied by the first network is outside a time-frequency resource of a second network and within a time-frequency resource of a third network, or the first information indicates a time-frequency resource occupied by the first network is outside a time-frequency resource of a second network and outside a time-frequency resource of a third network.
13 . The method according to claim 1 , wherein the first information indicates an antenna port quantity of the second network, and the antenna port quantity of the second network comprises a first antenna port quantity, a second antenna port quantity, and a third antenna port quantity, and a state value of the first information comprises a first value, a second value, a third value, and a fourth value, wherein the first value indicates the first antenna port quantity and/or the second antenna port quantity, the second value indicates the first antenna port quantity and/or the second antenna port quantity, and resource mapping patterns corresponding to the first antenna port quantity and the second antenna port quantity are the same, and the third value indicates the third antenna port quantity, and the fourth value indicates the third antenna port quantity.
14 . The method according to claim 13 , wherein the first value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network and within the time-frequency resource of the third network, the second value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network and outside the time-frequency resource of the third network, or indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network and the third network is not deployed, the third value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network and within the time-frequency resource of the third network, and the fourth value indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network and outside the time-frequency resource of the third network, or indicates the time-frequency resource occupied by the first network is within the time-frequency resource of the second network and that the third network is not deployed.
15 . The method according to claim 13 , wherein an antenna port of the second network is of a cell-specific reference signal (CRS), and the available resource of the first network does not comprise a time domain symbol occupied by the CRS, or the unavailable resource of the first network comprises a time domain symbol occupied by the CRS.
16 . The method according to claim 13 , wherein the first information indicates an antenna port quantity of the third network, and the antenna port quantity of the third network comprises a fourth antenna port quantity and a fifth antenna port quantity, and the state value of the first information comprises a fifth value indicating the fourth antenna port quantity and/or the fifth antenna port quantity, and resource mapping patterns corresponding to the fourth antenna port quantity and the fifth antenna port quantity are the same.
17 . A resource indication method, comprising: sending first information indicating an available resource or an unavailable resource of a first network.
18 . The method according to claim 17 , further comprising determining the first information.
19 . The method according to claim 17 , wherein before sending the first information, the method further comprises: generating a broadcast channel; and sending the first information through the broadcast channel.
20 . A communication system, comprising: a first apparatus; and a second apparatus, wherein the first apparatus is configured to: receive first information; and determine an available resource, or an unavailable resource, of a first network based on the first information; and the second apparatus is configured to: send the first information.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2024/100493, filed on Jun. 20, 2024, which claims priority to Chinese Patent Application No. 202310816243.1, filed on Jul. 4, 2023. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties. TECHNICAL FIELD This application relates to the wireless communication field, and in particular, to a resource indication method and an apparatus. BACKGROUND When an ambient internet of things (A-IoT) network and a long term evolution (LTE) network are jointly deployed, a resource of a cell-specific reference signal (CRS) of the LTE network is no longer allocated to the A-IoT network for use, to ensure communication performance of the LTE network. However, when the A-IoT network and the LTE network are jointly deployed, how a terminal device learns of a resource of the A-IoT network is an urgent problem to be resolved. SUMMARY To resolve the foregoing technical problem, this application provides a resource indication method and an apparatus, so that a terminal device can learn of a resource of an A-IoT network. To achieve the foregoing objective, this application uses the following technical solutions. According to a first aspect, a resource indication method is provided. An execution body of the method may be a first apparatus. The first apparatus may be a terminal device, may be a component (for example, a processor, a chip, or a chip system) used in the terminal device, or may be a logical module or software that can implement all or some functions of the terminal device. The following provides descriptions by using an example in which the execution body is the first apparatus. The method includes: receiving first information; and determining an available resource or an unavailable resource of a first network based on the first information. In other words, the first apparatus can receive the first information, and determine the available resource or the unavailable resource of the first network based on the first information. In this way, even if the first network is an ambient internet of things A-IoT network, and the first network and another network are jointly deployed, the first apparatus can learn of an available resource or an unavailable resource of the A-IoT network, and this helps improve system communication performance. In a first possible implementation, the first information indicates that a time-frequency resource occupied by the first network is within a time-frequency resource of a second network; or the first information indicates that a time-frequency resource occupied by the first network is outside a time-frequency resource of a second network. For example, the first network is the A-IoT network, and the second network is a long term evolution LTE network. For another example, the first network is the A-IoT network, and the second network is a narrowband internet of things NB-IoT network. That the first information indicates that the time-frequency resource occupied by the first network is within the time-frequency resource of the second network may include: Deployment of the first network and the second network is in-band deployment. In this case, the first apparatus needs to avoid the time-frequency resource occupied by the second network. That the first information indicates that the time-frequency resource occupied by the first network is outside the time-frequency resource of the second network may include: Deployment of the first network and the second network is non-in-band deployment, or the second network is not deployed. In this case, the first apparatus does not need to avoid the time-frequency resource occupied by the second network. In other words, the first information indicates a position relationship between the time-frequency resource of the first network and the time-frequency resource of the second network, so that the first apparatus learns whether to avoid the time-frequency resource occupied by the second network. In a second possible implementation, that the first information indicates that the time-frequency resource occupied by the first network is within the time-frequency resource of the second network includes: The first information indicates that the time-frequency resource occupied by the first network is within the time-frequency resource of the second network in a first state. Alternatively, that the first information indicates that the time-frequency resource occupied by the first network is outside the time-frequency resource of the second network includes: The first information indicates that the time-frequency resource occupied by the first network is outside the time-frequency resource of the second network in a first state. The first state includes at least one of the following: a first apparatus is in an idle state or a connected state, or the first apparatus has accessed the first network; and th