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CN-114727397-B - Mode indication method, terminal equipment and network equipment

CN114727397BCN 114727397 BCN114727397 BCN 114727397BCN-114727397-B

Abstract

The application provides a mode indication method, terminal equipment and network equipment, and relates to the technical field of communication. The mode indication method is executed by the terminal equipment and comprises the steps of receiving first indication information sent by the network equipment, wherein the first indication information is used for indicating a channel access mode of the terminal equipment in a first unlicensed frequency band, and the channel access mode comprises a Listen Before Talk (LBT) mode or a non-listen before talk (No-LBT) mode. According to the scheme, the first indication information which is sent by the network equipment and indicates the channel access mode of the terminal equipment in the first unlicensed frequency band is received, so that the channel access mode of the terminal equipment is defined, and the subsequent operation of the terminal equipment is facilitated.

Inventors

  • ZHU MIN
  • WANG JUNWEI

Assignees

  • 大唐移动通信设备有限公司
  • 大唐移动通信设备有限公司

Dates

Publication Date
20260421
Application Date
20211231
Priority Date
20210105

Claims (18)

  1. 1. A mode indication method, performed by a terminal device, comprising: receiving first indication information sent by network equipment, wherein the first indication information is used for indicating a channel access mode of terminal equipment in a first unlicensed frequency band; the channel access mode comprises a Listen Before Talk (LBT) mode or a non-listen before talk (No-LBT) mode; In the case that the channel access mode is specific to a cell, the first indication information is sent through a first signaling, and the first signaling comprises a system message; the system information comprises an LBT mode indication domain, first indication information and second indication information, wherein the LBT mode indication domain in the system information is optional configuration, and the first indication information is used for indicating that a channel access mode of a terminal device in a first unlicensed frequency band is an LBT mode when the LBT mode indication domain exists in the system information; when the channel access mode aims at a terminal, the first indication information is sent through Radio Resource Control (RRC) signaling; after the first indication information sent by the network equipment is received, the method further comprises the following steps: And under the condition that the channel access mode indication aiming at the cell and the channel access mode indication aiming at the terminal equipment are acquired, determining the channel access mode of the terminal equipment according to first indication information corresponding to the channel access mode indication aiming at the terminal equipment.
  2. 2. The method of claim 1, wherein the first signaling further comprises at least one of: Scheduling signaling of system messages, main information blocks, paging scheduling signaling.
  3. 3. The method of claim 2, wherein when the first signaling comprises scheduling signaling of a system message, M bits of reserved bits in the scheduling signaling are used to carry the first indication information; Wherein M is an integer greater than or equal to 1.
  4. 4. The method of claim 2 or 3, wherein the scheduling signaling of the system message comprises downlink control information DCI scrambled by a system information radio network temporary identity SI-RNTI.
  5. 5. The method of claim 4, wherein the field related to the channel access type in the DCI is 0 bits in case the channel access mode is a No-LBT mode.
  6. 6. The method according to claim 2, wherein 1 bit in a reserved field in a main information block is used to carry the first indication information when the first signaling comprises the main information block.
  7. 7. The method of claim 1, wherein N bits in the system message are used to carry the first indication information; Wherein N is an integer greater than or equal to 1.
  8. 8. The method of claim 2, wherein when the first signaling comprises paging scheduling signaling, K bits of reserved bits in the paging scheduling signaling are used to carry the first indication information; Wherein K is an integer greater than or equal to 1.
  9. 9. The method according to claim 2 or 8, wherein the paging scheduling signaling comprises paging radio network temporary identity, P-RNTI, scrambled downlink control information, DCI.
  10. 10. The method of claim 9, wherein the field related to the channel access type in the DCI is 0 bits in case the channel access mode is a No-LBT mode.
  11. 11. The method according to claim 1, wherein the first indication information is carried in a bandwidth part uplink dedicated domain and/or a bandwidth part downlink dedicated domain in RRC signaling.
  12. 12. The method of claim 1, wherein the domain related to the channel access type in the DCI is 0 bits in case that the channel access mode is a No-LBT mode.
  13. 13. The method of claim 1, wherein the first unlicensed frequency band is an unlicensed frequency band greater than 52.6 GHz.
  14. 14. The method according to claim 1, wherein the channel access mode is for an upstream bandwidth portion and/or a downstream bandwidth portion.
  15. 15. A terminal device comprising a memory, a transceiver, and a processor: the system comprises a memory for storing a computer program, a transceiver for receiving and transmitting data under the control of the processor, and a processor for reading the computer program in the memory and performing the following operations: Receiving first indication information sent by network equipment through a transceiver, wherein the first indication information is used for indicating a channel access mode of terminal equipment in a first unlicensed frequency band; the channel access mode comprises a Listen Before Talk (LBT) mode or a non-listen before talk (No-LBT) mode; In the case that the channel access mode is specific to a cell, the first indication information is sent through a first signaling, and the first signaling comprises a system message; the system information comprises an LBT mode indication domain, first indication information and second indication information, wherein the LBT mode indication domain in the system information is optional configuration, and the first indication information is used for indicating that a channel access mode of a terminal device in a first unlicensed frequency band is an LBT mode when the LBT mode indication domain exists in the system information; when the channel access mode aims at a terminal, the first indication information is sent through Radio Resource Control (RRC) signaling; Wherein the processor when executing the program further performs the steps of: And under the condition that the channel access mode indication aiming at the cell and the channel access mode indication aiming at the terminal equipment are acquired, determining the channel access mode of the terminal equipment according to first indication information corresponding to the channel access mode indication aiming at the terminal equipment.
  16. 16. The terminal device of claim 15, wherein the first signaling further comprises at least one of: Scheduling signaling of system messages, main information blocks, paging scheduling signaling.
  17. 17. A terminal device, comprising: The receiving unit is used for receiving first indication information sent by the network equipment, wherein the first indication information is used for indicating a channel access mode of the terminal equipment in a first unlicensed frequency band; the channel access mode comprises a Listen Before Talk (LBT) mode or a non-listen before talk (No-LBT) mode; In the case that the channel access mode is specific to a cell, the first indication information is sent through a first signaling, and the first signaling comprises a system message; the system information comprises an LBT mode indication domain, first indication information and second indication information, wherein the LBT mode indication domain in the system information is optional configuration, and the first indication information is used for indicating that a channel access mode of a terminal device in a first unlicensed frequency band is an LBT mode when the LBT mode indication domain exists in the system information; when the channel access mode aims at a terminal, the first indication information is sent through Radio Resource Control (RRC) signaling; after the receiving unit receives the first indication information sent by the network device, the method further comprises: And the determining unit is used for determining the channel access mode of the terminal equipment according to the first indication information corresponding to the channel access mode indication of the terminal equipment under the condition that the channel access mode indication of the cell and the channel access mode indication of the terminal equipment are acquired.
  18. 18. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 14.

Description

Mode indication method, terminal equipment and network equipment Technical Field The present application relates to the field of communications technologies, and in particular, to a mode indication method, a terminal device, and a network device. Background In the prior art, when the system is operating in an unlicensed band, the system needs to perform a listen before talk (Listen Before Talk, LBT) channel access procedure, i.e., LBT mode, before acquiring the channel. In the original standard, a User Equipment (UE, also called a terminal) must read information in a domain related to channel access when performing downlink control information (Downlink Control Information, DCI) decoding. Currently, in the high frequency unlicensed band, some regions support a channel access mode in which a channel can be acquired without performing LBT, which is called a non-listen before talk (No Listen Before Talk, no-LBT) mode. However, in the prior art, the terminal does not know the current channel access mode, which affects the subsequent operation. Disclosure of Invention The embodiment of the application provides a mode indication method, terminal equipment and network equipment, which are used for solving the problem that the terminal does not know the current channel access mode and the follow-up operation is influenced. In order to solve the above technical problem, an embodiment of the present application provides a mode indication method, which is executed by a terminal device, including: receiving first indication information sent by network equipment, wherein the first indication information is used for indicating a channel access mode of terminal equipment in a first unlicensed frequency band; wherein the channel access mode comprises a Listen Before Talk (LBT) mode or a non-listen before talk (No-LBT) mode. Optionally, when the channel access mode is specific to a cell, the receiving the first indication information sent by the network device includes: receiving first indication information sent by network equipment through a first signaling; Wherein the first signaling comprises at least one of: Scheduling signaling of system messages, primary information blocks, system messages, and paging scheduling signaling. Optionally, when the first signaling includes a scheduling signaling of a system message, M bits of a reserved bit in the scheduling signaling are used to carry the first indication information; Wherein M is an integer greater than or equal to 1. Optionally, the scheduling signaling of the system message comprises downlink control information DCI scrambled by a system information radio network temporary identifier SI-RNTI. Alternatively, in case that the channel access mode is the No-LBT mode, a field related to a channel access type in the DCI is 0 bits. Optionally, when the first signaling includes a main information block, 1 bit in a reserved field in the main information block is used to carry the first indication information. Optionally, when the first signaling includes a system message, N bits in the system message are used to carry the first indication information; Wherein N is an integer greater than or equal to 1. Optionally, when the first signaling includes paging scheduling signaling, K bits of a reserved bit in the paging scheduling signaling are used to carry the first indication information; Wherein K is an integer greater than or equal to 1. Optionally, the paging scheduling signaling comprises downlink control information DCI scrambled by a paging radio network temporary identifier P-RNTI. Alternatively, in case that the channel access mode is the No-LBT mode, a field related to a channel access type in the DCI is 0 bits. Optionally, when the channel access mode is directed to a terminal, the receiving the first indication information sent by the network device includes: And receiving first indication information sent by the network equipment through Radio Resource Control (RRC) signaling. Optionally, the first indication information is carried in a bandwidth part uplink dedicated domain and/or a bandwidth part downlink dedicated domain in RRC signaling. Alternatively, in case that the channel access mode is the No-LBT mode, a field related to a channel access type in the DCI is 0 bits. Optionally, the first unlicensed band is a high frequency unlicensed band. Optionally, the channel access mode is for an upstream bandwidth portion and/or a downstream bandwidth portion. Optionally, after the receiving the first indication information sent by the network device, the method further includes: And under the condition that the channel access mode indication aiming at the cell and the channel access mode indication aiming at the terminal equipment are acquired, determining the channel access mode of the terminal equipment according to first indication information corresponding to the channel access mode indication aiming at the terminal equipment. The embodiment of the application also