Mode indication method, terminal device and network device

Abstract

This application provides a mode indication method, a terminal device, and a network device, relating to the field of communication technology. The mode indication method, executed by the terminal device, includes: receiving first indication information sent by the network device, the first indication information indicating the channel access mode of the terminal device in a first unlicensed frequency band; wherein the channel access mode includes: Listen-Before-Speak (LBT) mode or No-LBT mode. This solution, by receiving the first indication information sent by the network device indicating the channel access mode of the terminal device in the first unlicensed frequency band, clarifies the channel access mode of the terminal device, facilitating subsequent operations of the terminal device.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a mode indication method, terminal equipment, and network equipment. Background Technology

[0002] In existing technologies, when a system operates on unlicensed frequency bands, it needs to perform a Listen Before Talk (LBT) channel access procedure before acquiring a channel, i.e., LBT mode. In the original standard, the User Equipment (UE, also known as the terminal) must read information related to channel access during Downlink Control Information (DCI) decoding. Currently, in some regions on high-frequency unlicensed frequency bands, a channel access method that can acquire a channel without performing LBT is supported, called No-Listen Before Talk (No-LBT) mode. However, in existing technologies, the terminal is unaware of its current channel access mode, which can affect subsequent operations. Summary of the Invention

[0003] This application provides a mode indication method, a terminal device, and a network device to solve the problem that subsequent operations are affected because the terminal does not know its current channel access mode.

[0004] To address the aforementioned technical problems, embodiments of this application provide a mode indication method, executed by a terminal device, comprising:

[0005] The terminal device receives first indication information sent by a network device, the first indication information being used to indicate the channel access mode of the terminal device in a first unlicensed frequency band;

[0006] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0007] Optionally, when the channel access mode is for a cell, the first indication information sent by the receiving network device includes:

[0008] Receive the first instruction information sent by the network device via the first signaling;

[0009] The first signaling includes at least one of the following:

[0010] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0011] Optionally, when the first signaling includes scheduling signaling of system messages, the M bits reserved in the scheduling signaling are used to carry the first indication information;

[0012] Where M is an integer greater than or equal to 1.

[0013] Optionally, the scheduling signaling of the system message includes: downlink control information (DCI) scrambled with System Information Radio Network Temporary Identifier (SI-RNTI).

[0014] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0015] Optionally, when the first signaling includes a master information block, 1 bit in the reserved field of the master information block is used to carry the first indication information.

[0016] Optionally, when the first signaling includes a system message, the N bits in the system message are used to carry the first indication information;

[0017] Where N is an integer greater than or equal to 1.

[0018] Optionally, when the first signaling includes paging scheduling signaling, the K bits reserved in the paging scheduling signaling are used to carry the first indication information;

[0019] Where K is an integer greater than or equal to 1.

[0020] Optionally, the paging scheduling signaling includes: downlink control information (DCI) scrambled with the paging radio network temporary identifier (P-RNTI).

[0021] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0022] Optionally, when the channel access mode is for a terminal, the first indication information sent by the receiving network device includes:

[0023] Receive the first indication information sent by the network device via Radio Resource Control (RRC) signaling.

[0024] Optionally, the first indication information is carried in the uplink dedicated domain and / or the downlink dedicated domain of the bandwidth portion in the RRC signaling.

[0025] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0026] Optionally, the first unlicensed frequency band is a high-frequency unlicensed frequency band.

[0027] Optionally, the channel access mode is for the uplink bandwidth portion and / or the downlink bandwidth portion.

[0028] Optionally, after receiving the first indication information sent by the network device, the method further includes:

[0029] Upon obtaining the channel access mode indication for the cell and the channel access mode indication for the terminal device, the channel access mode of the terminal device is determined based on the first indication information corresponding to the channel access mode indication for the terminal device.

[0030] This application embodiment also provides a pattern indication method, executed by a network device, including:

[0031] Send a first indication message to the terminal device, the first indication message being used to indicate the channel access mode of the terminal device in the first unlicensed frequency band;

[0032] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0033] Optionally, when the channel access mode is for a cell, sending the first indication information to the terminal device includes:

[0034] The first instruction information is sent to the terminal device via the first signaling;

[0035] The first signaling includes at least one of the following:

[0036] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0037] Optionally, when the first signaling includes scheduling signaling of system messages, the M bits reserved in the scheduling signaling are used to carry the first indication information;

[0038] Where M is an integer greater than or equal to 1.

[0039] Optionally, the scheduling signaling of the system message includes: downlink control information (DCI) scrambled with System Information Radio Network Temporary Identifier (SI-RNTI).

[0040] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0041] Optionally, when the first signaling includes a master information block, 1 bit in the reserved field of the master information block is used to carry the first indication information.

[0042] Optionally, when the first signaling includes a system message, the N bits in the system message are used to carry the first indication information;

[0043] Where N is an integer greater than or equal to 1.

[0044] Optionally, when the first signaling includes paging scheduling signaling, the K bits reserved in the paging scheduling signaling are used to carry the first indication information;

[0045] Where K is an integer greater than or equal to 1.

[0046] Optionally, the paging scheduling signaling includes: downlink control information (DCI) scrambled with the paging radio network temporary identifier (P-RNTI).

[0047] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0048] Optionally, when the channel access mode is for a terminal, sending the first indication information to the terminal device includes:

[0049] The first instruction information is sent to the terminal device via Radio Resource Control (RRC) signaling.

[0050] Optionally, the first indication information is carried in the uplink dedicated domain and / or the downlink dedicated domain of the bandwidth portion in the RRC signaling.

[0051] Optionally, the level targeted by the channel access mode is determined by the field carrying the RRC signaling;

[0052] The channel access mode targets at least one of the following levels:

[0053] Terminal device level;

[0054] Uplink bandwidth at certain levels;

[0055] Downlink bandwidth partial level.

[0056] Optionally, the first unlicensed frequency band is a high-frequency unlicensed frequency band.

[0057] This application also provides a terminal device, including a memory, a transceiver, and a processor:

[0058] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0059] The terminal device receives first indication information sent by the network device via a transceiver. The first indication information is used to indicate the channel access mode of the terminal device in the first unlicensed frequency band.

[0060] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0061] Optionally, when the channel access mode is for a cell, the processor is configured to read the computer program in the memory that receives first indication information transmitted by the network device via the transceiver and perform the following operations:

[0062] The transceiver receives the first instruction information sent by the network device via the first signaling.

[0063] The first signaling includes at least one of the following:

[0064] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0065] Optionally, when the channel access mode is for a terminal, the processor is configured to read a computer program from the memory that receives first indication information transmitted by a network device via a transceiver and perform the following operations:

[0066] The transceiver receives the first indication information sent by the network device via Radio Resource Control (RRC) signaling.

[0067] This application also provides a network device, including a memory, a transceiver, and a processor:

[0068] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0069] The transceiver sends a first indication message to the terminal device, the first indication message being used to indicate the channel access mode of the terminal device in the first unlicensed frequency band;

[0070] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0071] Optionally, when the channel access mode is for a cell, the processor is configured to read the computer program in the memory that transmits first indication information to the terminal device via a transceiver and perform the following operations:

[0072] The first instruction information is sent to the terminal device via the transceiver and through the first signaling.

[0073] The first signaling includes at least one of the following:

[0074] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0075] Optionally, when the channel access mode is for a terminal, the processor is configured to read the computer program in the memory that transmits first instruction information to the terminal device via a transceiver and perform the following operations:

[0076] The first instruction information is sent to the terminal device via a transceiver and Radio Resource Control (RRC) signaling.

[0077] This application embodiment also provides a terminal device, including:

[0078] A receiving unit is configured to receive first indication information sent by a network device, wherein the first indication information is used to indicate the channel access mode of a terminal device in a first unlicensed frequency band;

[0079] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0080] This application also provides a network device, including:

[0081] The transmitting unit is configured to transmit first indication information to the terminal device, wherein the first indication information is used to indicate the channel access mode of the terminal device in the first unlicensed frequency band.

[0082] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0083] This application also provides a processor-readable storage medium storing a computer program for causing the processor to perform the above-described method.

[0084] The beneficial effects of this application are:

[0085] The above scheme, by receiving the first indication information sent by the network device indicating the channel access mode of the terminal device in the first unlicensed frequency band, clarifies the channel access mode of the terminal device, which facilitates the subsequent operation of the terminal device. Attached Figure Description

[0086] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0087] Figure 1 This diagram illustrates the structure of a network system applicable to embodiments of this application.

[0088] Figure 2 A flowchart illustrating a mode indication method applied to a terminal device according to an embodiment of this application;

[0089] Figure 3 A flowchart illustrating a mode indication method applied to a network device according to an embodiment of this application;

[0090] Figure 4 A schematic diagram illustrating the communication process between the terminal and the base station in Scenario 1;

[0091] Figure 5 A schematic diagram illustrating the communication process between the terminal and the base station in scenario two;

[0092] Figure 6 A schematic diagram illustrating the communication process between the terminal and the base station in scenario three;

[0093] Figure 7 A schematic diagram of the unit of a terminal device according to an embodiment of this application;

[0094] Figure 8 A structural diagram illustrating the terminal device according to an embodiment of this application;

[0095] Figure 9 A schematic diagram of the network device according to an embodiment of this application;

[0096] Figure 10 This is a structural diagram of a network device according to an embodiment of this application. Detailed Implementation

[0097] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0098] The terms “first,” “second,” etc., used in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein may be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0099] In this application's embodiments, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship. In this application's embodiments, the term "multiple" refers to two or more, and other quantifiers are similar.

[0100] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0101] The embodiments of this application are described below with reference to the accompanying drawings. The mode indication method, terminal device, and network device provided in the embodiments of this application can be applied to a wireless communication system. The wireless communication system can be a system using fifth-generation (5G) mobile communication technology (hereinafter referred to as a 5G system). Those skilled in the art will understand that the 5G NR system is merely an example and not a limitation.

[0102] See Figure 1 , Figure 1 This is a structural diagram of a network system that can be applied to the embodiments of this application, such as... Figure 1As shown, the system includes a user terminal 11 and a base station 12. The user terminal 11 can be a user equipment (UE), such as a mobile phone, tablet personal computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), or wearable device. It should be noted that the specific type of user terminal 11 is not limited in this embodiment. The base station 12 can be a 5G or later version base station (e.g., gNB, 5G NR NB), or a base station in other communication systems, also referred to as a node B. It should be noted that this embodiment only uses a 5G base station as an example, but the specific type of base station 12 is not limited.

[0103] Before describing the embodiments of this application, some concepts mentioned below will be explained.

[0104] New Radio (NR) systems are considering the design of physical layer channels, signals, procedures, and protocols in frequency bands above 52.6 GHz. Potential applications in higher frequency bands include Enhanced Mobile Broadband (eMBB), mobile data offloading, short-range high-data-rate device-to-device (D2D) communication, broadband power distribution networks, integrated access backhaul, factory automation, Industrial Internet of Things (IIOT), wireless display transmission, Augmented Reality (AR) / Virtual Reality (VR) wearables, Intelligent Transportation Systems (ITS), Vehicle-to-Everything (V2X), data center rack connectivity, smart grid automation, dedicated networks, and high-precision positioning support. The 3rd Generation Partnership Project (3GPP) has identified two channel access modes—LBT mode and No-LBT mode—for unlicensed frequency bands where local regulations permit No-LBT operation.

[0105] In the New Radio Unlicensed (NR-U) band, the physical layer control signaling design of the NR system is as follows. When the system operates in an unlicensed frequency band, the ChannelAccess-CPext field in the Downlink Control Information (DCI) format0_0 scrambled with the Cell Radio Network Temporary Identifier (C-RNTI), the Configured Scheduling Radio Network Temporary Identifier (CS-RNTI), the Modulation Coding Scheme Cell Radio Network Temporary Identifier (MCS-C-RNTI), or the Temporary Cell Radio Network Temporary Identifier (TC-RNTI), and the DCI format 1_0 scrambled with C-RNTI, CS-RNTI, MCS-C-RNTI, or TC-RNTI, carries 2 bits of information to indicate the combination of the User Equipment (UE, also known as the terminal) channel access type and the Cyclic Prefix (CP) extension; otherwise, this field is 0 bits.

[0106] When the system operates in an unlicensed frequency band and there are higher-level parameter configurations, the ChannelAccess-CPext-CAPC (specifically, CAPC stands for Channel Access Priority) field in DCI format 0_1 ​​and DCI format 1_1 carries 0, 1, 2, 3, 4, 5, or 6 bits of information to indicate the UE's channel access method; otherwise, this field is 0 bits.

[0107] For DCI scrambled with System Information Radio Network Temporary Identifier (SI-RNTI), when the system is operating on an unlicensed frequency band, the SI-RNTI scrambled DCI format 1_0 has 17 reserved bits; otherwise, it has 15 reserved bits. For DCI scrambled with P-RNTI, the P-RNTI scrambled DCI format 1_0 has 8 reserved bits; otherwise, it has 6 reserved bits. The reserved field (spare field) of the Physical Broadcast Channel (PBCH) has 1 bit reserved to indicate the spare Master Information Block (MIB) information.

[0108] This application provides a mode indication method, a terminal device, and a network device to solve the problem that the terminal does not know its current channel access mode, which affects subsequent operations.

[0109] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0110] like Figure 2 As shown, this application embodiment provides a mode indication method, executed by a terminal device, including:

[0111] Step S201: Receive the first indication information sent by the network device;

[0112] It should be noted that the first indication information is used to indicate the channel access mode of the terminal device in the first unlicensed frequency band; specifically, the channel access mode includes: Listen Before Talk (LBT) mode or No-LBT mode.

[0113] It should be noted that the first unlicensed frequency band is a high-frequency unlicensed frequency band, that is, an unlicensed frequency band greater than 52.6 GHz. In other words, the embodiments of this application apply to the high-frequency band in the unlicensed frequency band.

[0114] It should be noted that when a terminal device receives a channel access mode (LBT) from a network device, indicating the channel access mode in a high-frequency unlicensed band, the terminal device needs to decode the information in the unlicensed band channel access related fields upon receiving downlink control information (DCI). For example, the terminal device needs to decode the contents of the ChannelAccess-CPext and ChannelAccess-CPext-CAPC information fields. When the terminal device is in No-LBT mode, it does not need to decode the information in the unlicensed band channel access related fields upon receiving DCI. For example, the terminal device does not need to decode the contents of the ChannelAccess-CPext and ChannelAccess-CPext-CAPC information fields.

[0115] It should be further noted that the channel access mode can be cell-specific, in which case the network equipment configures all terminal devices in the cell to be in LBT mode or No-LBT mode; or it can be UE-specific, in which case the network equipment configures some terminal devices in the cell to be in No-LBT mode and others to be in LBT mode.

[0116] Specifically, when the channel access mode is Cell-specific, step S201 in this embodiment is implemented as follows:

[0117] Receive the first instruction information sent by the network device via the first signaling;

[0118] The first signaling includes at least one of the following:

[0119] A11, System message scheduling signaling;

[0120] It should be noted that in this case, the network device carries the first indication information through the reserved bits (also known as reserved bits) in the scheduling signaling, where M is an integer greater than or equal to 1.

[0121] For example, the scheduling signaling for this system message is a DCI scrambled with System Information Radio Network Temporary Identifier (SI-RNTI). This means that a mode indicator field is added to the reserved bits of the SI-RNTI-scrambled DCI. For instance, this mode indicator field occupies 1 bit and is used to indicate whether the terminal device is in LBT mode or No-LBT mode in the unlicensed frequency band. For example, a value of 0 in the mode indicator field indicates LBT mode, and a value of 1 indicates No-LBT mode; or, a value of 1 in the mode indicator field indicates LBT mode, and a value of 0 indicates No-LBT mode.

[0122] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits. That is, when the channel access mode is No-LBT mode, the DCI does not carry LBT-related information, thereby reducing the complexity of the terminal device decoding the DCI.

[0123] A12, Main Information Block;

[0124] It should be noted that in this case, the network device carries the first indication information through 1 bit in the reserved field of the main information block. For example, if the main information block is on the Physical Broadcast Channel (PBCH), the network device sends the first indication information through 1 bit in the reserved field of the PBCH. When this bit is 0, it indicates LBT mode, and when it is 1, it indicates No-LBT mode; or, when this bit is 1, it indicates LBT mode, and when it is 0, it indicates No-LBT mode.

[0125] A13, System Message;

[0126] It should be noted that in this case, the network device carries the first indication information through N bits in the system message, where N is an integer greater than or equal to 1.

[0127] For example, this system message can be System Information Block 1 (SIB 1), or it can be any other SIB besides SIB 1. That is, a new mode indicator field (which can be considered an LBT mode indicator field) is added to SIB 1 or other SIBs. For example, this mode indicator field occupies 1 bit and is used to indicate whether the terminal device is in LBT mode or No-LBT mode in the unlicensed frequency band. For example, when the mode indicator field is 0, it indicates LBT mode, and when it is 1, it indicates No-LBT mode; or, when the mode indicator field is 1, it indicates LBT mode, and when it is 0, it indicates No-LBT mode.

[0128] Alternatively, the LBT mode indication field in the system information block is an optional configuration field. When the LBT mode indication field exists in system information block 1 (SIB 1), it indicates that the terminal is in LBT mode in the unlicensed frequency band; when the LBT mode indication field does not exist in system information block 1 (SIB 1), it implicitly indicates that the terminal is in No-LBT mode in the unlicensed frequency band, in other words, the terminal is not in LBT mode.

[0129] Alternatively, when an LBT mode indication field is added to the System Information Block (SIB 1) and is multi-bit (e.g., 2 bits), one of the status indications is that the terminal is in LBT mode in the unlicensed frequency band and does not need to perform LBT when sending contention waiver short control signaling; another of the status indications is that the terminal is in LBT mode in the unlicensed frequency band and needs to perform LBT when sending contention waiver short control signaling; and yet another of the status indications is that the terminal is in No-LBT mode in the unlicensed frequency band.

[0130] Alternatively, the LBT mode indication field in the system information block is an optional configuration field. When an LBT mode indication field exists in the system information block (SIB1) and is multi-bit (e.g., 2 bits), one state indicates that the terminal is in LBT mode in the unlicensed frequency band and does not need to perform LBT when sending contention waiver short control signaling; another state indicates that the terminal is in LBT mode in the unlicensed frequency band and needs to perform LBT when sending contention waiver short control signaling; when an LBT mode indication field does not exist in the system information block (SIB 1), it implicitly indicates that the terminal is in No-LBT mode in the unlicensed frequency band, in other words, the terminal is not in LBT mode.

[0131] Note that the contention-exempt short control signaling includes at least an SSB, a discovery signal, and Msg 1 / Msg A. The discovery signal includes at least a control resource set (CORESET) associated with the synchronization signal / broadcast channel (SS / PBCH) for scheduling the PDCCH of SIB1, a PDSCH for scheduling SIB1, and a non-zero power CSI-RS.

[0132] Alternatively, when an LBT mode indication field is added to the System Information Block (SIB 1) and is multi-bit (e.g., 3 bits), one of the following states indicates that the terminal is in LBT mode in the unlicensed band and transmits an SSB, discovery signal, and Msg1 / Msg A, which does not require LBT execution; another state indicates that the terminal is in LBT mode in the unlicensed band and transmits an SSB, discovery signal, which does not require LBT execution, but transmitting Msg1 / Msg A requires LBT execution; yet another state indicates that the terminal is in LBT mode in the unlicensed band and transmits an SSB, discovery signal, which requires LBT execution, but transmitting Msg1 / Msg A does not require LBT execution; yet another state indicates that the terminal is in LBT mode in the unlicensed band and transmits an SSB, discovery signal, and Msg1 / Msg A, which requires LBT execution; and yet another state indicates that the terminal is in No-LBT mode in the unlicensed band.

[0133] Alternatively, the LBT mode indication field in the system information block can be an optional configuration field. When an LBT mode indication field exists in System Information Block (SIB1) and is multi-bit (e.g., 2 bits), one of the following states indicates that the terminal is in LBT mode in the unlicensed band and sends an SSB, a discovery signal, and Msg1 / Msg A, and does not need to perform LBT; another state indicates that the terminal is in LBT mode in the unlicensed band and sends an SSB, a discovery signal, and does not need to perform LBT, but sending Msg1 / Msg A requires LBT; yet another state indicates that the terminal is in LBT mode in the unlicensed band and sends an SSB, a discovery signal, and does not need to perform LBT, but sending Msg1 / Msg A does not require LBT; and yet another state indicates that the terminal is in LBT mode in the unlicensed band and sends an SSB, a discovery signal, and Msg1 / Msg A, and requires LBT. When an LBT mode indication field does not exist in System Information Block 1 (SIB 1), it implicitly indicates that the terminal is in No-LBT mode in the unlicensed band, in other words, the terminal is not in LBT mode.

[0134] A14. Paging dispatch signaling;

[0135] It should be noted that in this case, the network device carries the first indication information through K bits reserved in the paging scheduling signaling, where K is an integer greater than or equal to 1.

[0136] For example, this paging dispatch signaling is a DCI scrambled with the Paging Radio Network Temporary Identifier (P-RNTI). That is, a mode indicator field is added to the reserved bits of the P-RNTI-scrambled DCI. For example, this mode indicator field occupies 1 bit and is used to indicate whether the terminal device is in LBT mode or No-LBT mode in the unlicensed frequency band. For example, when the mode indicator field is 0, it indicates LBT mode, and when it is 1, it indicates No-LBT mode; or, when the mode indicator field is 1, it indicates LBT mode, and when it is 0, it indicates No-LBT mode.

[0137] It should be noted that, in A11-A14 above, A11 and A12 can be considered as obtaining the first indication information of the network device before the RRC connection. After the terminal device establishes an RRC connection with the network device, if the mode of the terminal device changes, the network device will indicate the mode change through A14.

[0138] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits. That is, when the network device instructs the terminal device to be in No-LBT mode, the DCI sent by the network device may not carry LBT-related information, thereby reducing the complexity of the terminal device in decoding the DCI.

[0139] Specifically, when the channel access mode is UE-specific, the specific implementation of step S201 in this embodiment is as follows:

[0140] Receive the first indication information sent by the network device via Radio Resource Control (RRC) signaling.

[0141] In this case, the network device indicates to a specific terminal device whether it is in LBT mode or No-LBT mode through RRC signaling. For example, the network device can carry the first indication information in the bandwidth portion of the uplink dedicated field (BWP-UplinkDedicated field) or the bandwidth portion of the downlink dedicated field (BWP-DownDedicated field) in the RRC signaling. The network device can also carry the first indication information in other fields of the RRC signaling.

[0142] Specifically, when 1 bit is added to the BWP-UplinkDedicated field to carry the first indication information, the LBT mode or No-LBT mode indicated by the network device is for the uplink bandwidth portion. That is, the terminal device is only in the LBT mode or No-LBT mode indicated by the network device during the uplink bandwidth portion. When 1 bit is added to the BWP-DownDedicated field to carry the first indication information, the LBT mode or No-LBT mode indicated by the network device is for the downlink bandwidth portion. That is, the terminal device is only in the LBT mode or No-LBT mode indicated by the network device during the downlink bandwidth portion. Specifically, when the bit of the first indication information is 0, it indicates LBT mode, and when it is 1, it indicates No-LBT mode; or, when the bit of the first indication information is 1, it indicates LBT mode, and when it is 0, it indicates No-LBT mode. For example, when a terminal receives a UE-specific mode indication signaling configuration after establishing an RRC connection, if the first indication information received in the IE BWP-UplinkDedicated field or the IE BWP-DownDedicated field is 0, then the terminal is in LBT mode in the corresponding BWP; if the first indication information received in the IE BWP-UplinkDedicated field or the IE BWP-DownDedicated field is 1, then the terminal is in No-LBT mode in the corresponding BWP.

[0143] Alternatively, the channel access mode information can be implicitly indicated through UL-AccessConfigListForDCI-Format1-1-r16 in the PUCCH-Config field and / or UL-AccessConfigListForDCI-Format0-1-r16 in the PUSCH-Config field of BWP-UplinkDedicated. If UL-AccessConfigListForDCI-Format1-1-r16 and / or UL-AccessConfigListForDCI-Format0-1-r16 are configured for the terminal, the terminal is in LBT mode; otherwise, it is in No-LBT mode.

[0144] It should be noted that when the network device notifies the terminal device that it is in No-LBT mode, the configuration method of RRC signaling ul-AccessConfigListForDCI-Format1-1 and IE ul-AccessConfigListForDCI-Format0-1 in the unlicensed frequency band is the same as that in the licensed frequency band.

[0145] If the first indication information indicates LBT mode, the bit length of the ChannelAccess-CPext field in the DCI is determined by UL-AccessConfigListForDCI-Format1-1-r16 in the PUCCH-Config field of BWP-UplinkDedicated and / or UL-AccessConfigListForDCI-Format0-1-r16 in the PUSCH-Config field; otherwise, it is 0 bits.

[0146] Optionally, when a channel access mode indication for a cell and a channel access mode indication for a terminal device are obtained, the channel access mode of the terminal device is determined according to the first indication information corresponding to the channel access mode indication for the terminal device.

[0147] It should be noted that, for the channel access mode indication (CAM) at the cell level, the terminal device can implicitly determine that it has obtained the CAM when it receives the first indication information sent by the network device through system message scheduling signaling, master information block, system message, and paging scheduling signaling; for the channel access mode indication (VAM) at the terminal level, the terminal device can implicitly determine that it has obtained the VAM when it receives the first indication information sent by the network device through radio resource control (RRC) signaling.

[0148] In other words, when a terminal device first obtains the cell-specific channel access mode sent by the network device, and then obtains the UE-specific channel access mode sent by the network device, the terminal device will use the UE-specific channel access mode as the highest priority to determine its current channel access mode. For example, if the terminal device first obtains the cell-specific channel access mode sent by the network device as No-LBT mode, in this No-LBT mode, the terminal device does not decode the information in the DCI related to unlicensed frequency band channel access. If the terminal device then receives the UE-specific channel access mode sent by the network device as LBT mode, the terminal device will determine that it is in LBT mode, and the terminal device needs to decode the information in the DCI related to unlicensed frequency band channel access.

[0149] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits. That is, when the network device instructs the terminal device to be in No-LBT mode, the DCI sent by the network device may not carry LBT-related information, thereby reducing the complexity of the terminal device in decoding the DCI.

[0150] In summary, the embodiments of this application clarify the channel access mode of the terminal device by receiving the first indication information sent by the network device indicating the channel access mode of the terminal device in the high-frequency unlicensed band, which facilitates the subsequent operation of the terminal device. At the same time, the implementation method of the embodiments of this application eliminates the need for the terminal device to continuously decode the information in the channel access-related domain of the DCI, thereby saving the power consumption of the terminal device.

[0151] like Figure 3 As shown, this application embodiment provides a pattern indication method, executed by a network device, including:

[0152] Step S301: Send first indication information to the terminal device. The first indication information is used to indicate the channel access mode of the terminal device in the first unlicensed frequency band.

[0153] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0154] Optionally, when the channel access mode is for a cell, sending the first indication information to the terminal device includes:

[0155] The first instruction information is sent to the terminal device via the first signaling;

[0156] The first signaling includes at least one of the following:

[0157] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0158] Furthermore, when the first signaling includes scheduling signaling of system messages, the M bits reserved in the scheduling signaling are used to carry the first indication information;

[0159] Where M is an integer greater than or equal to 1.

[0160] Specifically, the scheduling signaling of the system message includes: Downlink Control Information (DCI) scrambled with System Information Radio Network Temporary Identifier (SI-RNTI).

[0161] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0162] Furthermore, when the first signaling includes a main information block, 1 bit in the reserved field of the main information block is used to carry the first indication information.

[0163] Furthermore, when the first signaling includes a system message, the N bits in the system message are used to carry the first indication information;

[0164] Where N is an integer greater than or equal to 1.

[0165] Furthermore, when the first signaling includes paging scheduling signaling, the K bits reserved in the paging scheduling signaling are used to carry the first indication information;

[0166] Where K is an integer greater than or equal to 1.

[0167] Specifically, the paging scheduling signaling includes: downlink control information (DCI) scrambled with the paging radio network temporary identifier (P-RNTI).

[0168] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0169] Optionally, when the channel access mode is for a terminal, sending the first indication information to the terminal device includes:

[0170] The first instruction information is sent to the terminal device via Radio Resource Control (RRC) signaling.

[0171] Specifically, the first indication information is carried in the uplink dedicated domain and / or the downlink dedicated domain of the bandwidth portion in the RRC signaling.

[0172] Optionally, the level targeted by the channel access mode is determined by the field carrying the RRC signaling;

[0173] The channel access mode targets at least one of the following levels:

[0174] Terminal device level;

[0175] Uplink bandwidth at certain levels;

[0176] Downlink bandwidth partial level.

[0177] For example, when the uplink dedicated domain of the bandwidth portion in RRC signaling carries the first indication information, it can be determined that the channel access mode is for the terminal device level. When the uplink dedicated domain of the bandwidth portion and the downlink dedicated domain of the bandwidth portion in RRC signaling carry the first indication information, it can be determined that the channel access mode is for the uplink bandwidth portion level and the downlink bandwidth portion level.

[0178] Optionally, the first unlicensed frequency band is a high-frequency unlicensed frequency band.

[0179] It should be noted that all descriptions of the network device side in the above embodiments are applicable to the embodiments of this mode indication method and can achieve the same technical effect.

[0180] The technical solutions provided in this application can be applied to various systems, especially 5G systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) and 5G system (5GS).

[0181] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments of this application.

[0182] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0183] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0184] The following example illustrates the specific application scenarios of this application, using communication between a terminal and a base station as an example.

[0185] Scenario 1: The terminal performs cell-specific configuration through reserved bits in the scheduling signaling of the system message (SI-RNTI scrambled DCI format 1_0) to obtain the LBT / No-LBT mode indicated by the first indication information. For example, the base station uses one or more bits from the reserved bits in the scheduling signaling of the system message to indicate the LBT / No-LBT mode, and the process involved is as follows: Figure 4 As shown, specifically:

[0186] The terminal receives SI-RNTI scrambled DCI format 1_0;

[0187] When the terminal receives and decodes the first indication information in the reserved bits of the DCI format 1_0 scrambled by SI-RNTI, if the terminal is indicated to be in No-LBT mode, the terminal does not need to decode the ChannelAccess-CPext field when decoding DCI format 0_0 scrambled by C-RNTI\CS-RNTI\MCS-C-RNTI\TC-RNTI or DCI format 1_0 scrambled by C-RNTI\CS-RNTI\MCS-C-RNTI\Random Access Radio Network Temporary Identifier (RA-RNTI)\MsgB-RNTI\TC-RNTI; if the terminal is indicated to be in No-LBT mode, the terminal does not need to decode the ChannelAccess-CPext field when decoding DCI format 1_0 scrambled by C-RNTI\CS-RNTI\Semi-Persistent Channel State Information Radio Network Temporary Identifier (SP-CSI-RNTI)\MCS-C-RNTI. When using DCI format 1_1 scrambled with 0_1 or C-RNTI\CS-RNTI\MCS-C-RNTI, there is no need to decode the ChannelAccess-CPext-CAPC field;

[0188] It should be noted that during this process, the terminal successfully decoded and detected DCI.

[0189] Scenario 2: The terminal performs cell-specific configuration through reserved bits in the scheduling signaling of system messages (SI-RNTI scrambled DCI format 1_0) to obtain the LBT / No-LBT mode indicated by the first indication information; then the base station sends UE-specific first indication information through RRC signaling to indicate the LBT / No-LBT mode for a specific terminal. The process involved is as follows: Figure 5 As shown, specifically:

[0190] After receiving the first instruction information for RRC signaling configuration, the terminal performs operations according to the configuration mode of the RRC signaling:

[0191] If the terminal is indicated to be in No-LBT mode, the terminal does not need to decode the ChannelAccess-CPext field when decoding DCI format 0_0 scrambled by C-RNTI\CS-RNTI\MCS-C-RNTI\TC-RNTI or DCI format 1_0 scrambled by C-RNTI\CS-RNTI\MCS-C-RNTI\RA-RNTI\MsgB-RNTI\TC-RNTI; and does not need to decode the ChannelAccess-CPext-CAPC field when decoding DCI format 0_1 ​​scrambled by C-RNTI\CS-RNTI\SP-CSI-RNTI\MCS-C-RNTI or DCI format 1_1 scrambled by C-RNTI\CS-RNTI\MCS-C-RNTI.

[0192] It should be noted that during this process, the terminal successfully decoded and detected DCI.

[0193] Scenario 3: After the terminal obtains the LBT / No-LBT mode indicated by the first indication information through SI-RNTI scrambled DCI or PBCH and RRC signaling, and needs to reacquire new system messages, it indicates the LBT / No-LBT mode through P-RNTI scrambled DCI. The process involved is as follows: Figure 6 As shown, specifically:

[0194] When the LBT / No-LBT mode of the terminal changes, the terminal only needs to decode the bits occupied by the first indication information of the reserved bits in the DCI scrambled by P-RNTI to know the current LBT / No-LBT mode. The indication methods include the following:

[0195] The first candidate scheme is as follows: when the first indication information in the DCI scrambled by P-RNTI occupies 0 bits, the terminal is in LBT mode; when the first indication information occupies 1 bit, the terminal is in No-LBT mode; and vice versa.

[0196] The second candidate scheme is as follows: when the first indication information in the P-RNTII scrambled DCI occupies 0 bits, the LBT / No-LBT mode of the terminal remains unchanged; when the first indication information occupies 1 bit, the LBT / No-LBT mode of the terminal is flipped, that is, from LBT mode to No-LBT mode, and from No-LBT mode to LBT mode.

[0197] like Figure 7 As shown, this application embodiment provides a terminal device 700, including:

[0198] The receiving unit 701 is configured to receive first indication information sent by the network device, wherein the first indication information is used to indicate the channel access mode of the terminal device in the first unlicensed frequency band.

[0199] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0200] Optionally, when the channel access mode is for a cell, the receiving unit 701 is used to:

[0201] Receive the first instruction information sent by the network device via the first signaling;

[0202] The first signaling includes at least one of the following:

[0203] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0204] Furthermore, when the first signaling includes scheduling signaling of system messages, the M bits reserved in the scheduling signaling are used to carry the first indication information;

[0205] Where M is an integer greater than or equal to 1.

[0206] Specifically, the scheduling signaling of the system message includes: Downlink Control Information (DCI) scrambled with System Information Radio Network Temporary Identifier (SI-RNTI).

[0207] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0208] Furthermore, when the first signaling includes a main information block, 1 bit in the reserved field of the main information block is used to carry the first indication information.

[0209] Furthermore, when the first signaling includes a system message, the N bits in the system message are used to carry the first indication information;

[0210] Where N is an integer greater than or equal to 1.

[0211] Furthermore, when the first signaling includes paging scheduling signaling, the K bits reserved in the paging scheduling signaling are used to carry the first indication information;

[0212] Where K is an integer greater than or equal to 1.

[0213] Furthermore, the paging scheduling signaling includes: downlink control information (DCI) scrambled with the paging radio network temporary identifier (P-RNTI).

[0214] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0215] Optionally, when the channel access mode is for a terminal, the receiving unit 701 is used to:

[0216] Receive the first indication information sent by the network device via Radio Resource Control (RRC) signaling.

[0217] Specifically, the first indication information is carried in the uplink dedicated domain and / or the downlink dedicated domain of the bandwidth portion in the RRC signaling.

[0218] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0219] Optionally, the first unlicensed frequency band is a high-frequency unlicensed frequency band.

[0220] Optionally, the channel access mode is for the uplink bandwidth portion and / or the downlink bandwidth portion.

[0221] Optionally, after the receiving unit 701 receives the first indication information sent by the network device, it further includes:

[0222] The determining unit is configured to, upon obtaining a channel access mode indication for a cell and a channel access mode indication for a terminal device, determine the channel access mode of the terminal device based on the first indication information corresponding to the channel access mode indication for the terminal device.

[0223] It should be noted that this terminal device embodiment corresponds one-to-one with the above method embodiments. All implementation methods in the above method embodiments are applicable to this terminal device embodiment and can achieve the same technical effect.

[0224] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0225] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0226] like Figure 8 As shown, this application embodiment also provides a terminal device, including a processor 800, a transceiver 810, a memory 820, and a program stored in the memory 820 and executable on the processor 800; wherein the transceiver 810 is connected to the processor 800 and the memory 820 via a bus interface, and the processor 800 is used to read the program in the memory and execute the following processes:

[0227] The transceiver 810 receives first indication information sent by the network device, the first indication information being used to indicate the channel access mode of the terminal device in the first unlicensed frequency band;

[0228] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0229] Transceiver 810 is used to receive and send data under the control of processor 800.

[0230] Among them, Figure 8In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 800 and memory represented by memory 820 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 810 can be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, the user interface 830 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0231] The processor 800 is responsible for managing the bus architecture and general processing, while the memory 820 can store the data used by the processor 800 during operation.

[0232] Optionally, the processor 800 can be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0233] The processor executes the method provided in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory can also be physically separated.

[0234] Optionally, when the channel access mode is for a cell, the processor 800 executes the program for receiving the first indication information sent by the network device, and performs the following steps:

[0235] The transceiver 810 receives the first instruction information sent by the network device via the first signaling.

[0236] The first signaling includes at least one of the following:

[0237] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0238] Furthermore, when the first signaling includes scheduling signaling of system messages, the M bits reserved in the scheduling signaling are used to carry the first indication information;

[0239] Where M is an integer greater than or equal to 1.

[0240] Specifically, the scheduling signaling of the system message includes: Downlink Control Information (DCI) scrambled with System Information Radio Network Temporary Identifier (SI-RNTI).

[0241] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0242] Furthermore, when the first signaling includes a main information block, 1 bit in the reserved field of the main information block is used to carry the first indication information.

[0243] Furthermore, when the first signaling includes a system message, the N bits in the system message are used to carry the first indication information;

[0244] Where N is an integer greater than or equal to 1.

[0245] Furthermore, when the first signaling includes paging scheduling signaling, the K bits reserved in the paging scheduling signaling are used to carry the first indication information;

[0246] Where K is an integer greater than or equal to 1.

[0247] Specifically, the paging scheduling signaling includes: downlink control information (DCI) scrambled with the paging radio network temporary identifier (P-RNTI).

[0248] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0249] Optionally, when the channel access mode is for a terminal, the processor 800 executes the program for receiving the first indication information sent by the network device, and performs the following steps:

[0250] The transceiver 810 receives the first indication information sent by the network device via Radio Resource Control (RRC) signaling.

[0251] Furthermore, the first indication information is carried in the uplink dedicated domain and / or downlink dedicated domain of the bandwidth portion in the RRC signaling.

[0252] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0253] Optionally, the first unlicensed frequency band is a high-frequency unlicensed frequency band.

[0254] Optionally, the channel access mode is for the uplink bandwidth portion and / or the downlink bandwidth portion.

[0255] Optionally, when the processor 800 executes the program, it further performs the following steps:

[0256] Upon obtaining the channel access mode indication for the cell and the channel access mode indication for the terminal device, the channel access mode of the terminal device is determined based on the first indication information corresponding to the channel access mode indication for the terminal device.

[0257] It should be noted that the terminal device provided in this application embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0258] This application also provides a computer-readable storage medium storing a computer program thereon, wherein the computer program, when executed by a processor, implements the steps of a mode indication method applied to a terminal device. The processor-readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs)).

[0259] like Figure 9 As shown, this application embodiment provides a network device 900, including:

[0260] The sending unit 901 is used to send first indication information to the terminal device, wherein the first indication information is used to indicate the channel access mode of the terminal device in the first unlicensed frequency band.

[0261] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0262] Optionally, when the channel access mode is for a cell, the transmitting unit 901 is used to:

[0263] The first instruction information is sent to the terminal device via the first signaling;

[0264] The first signaling includes at least one of the following:

[0265] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0266] Furthermore, when the first signaling includes scheduling signaling of system messages, the M bits reserved in the scheduling signaling are used to carry the first indication information;

[0267] Where M is an integer greater than or equal to 1.

[0268] Specifically, the scheduling signaling of the system message includes: Downlink Control Information (DCI) scrambled with System Information Radio Network Temporary Identifier (SI-RNTI).

[0269] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0270] Furthermore, when the first signaling includes a main information block, 1 bit in the reserved field of the main information block is used to carry the first indication information.

[0271] Furthermore, when the first signaling includes a system message, the N bits in the system message are used to carry the first indication information;

[0272] Where N is an integer greater than or equal to 1.

[0273] Furthermore, when the first signaling includes paging scheduling signaling, the K bits reserved in the paging scheduling signaling are used to carry the first indication information;

[0274] Where K is an integer greater than or equal to 1.

[0275] Specifically, the paging scheduling signaling includes: downlink control information (DCI) scrambled with the paging radio network temporary identifier (P-RNTI).

[0276] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0277] Optionally, when the channel access mode is for a terminal, the transmitting unit 901 is used to:

[0278] The first instruction information is sent to the terminal device via Radio Resource Control (RRC) signaling.

[0279] Furthermore, the first indication information is carried in the uplink dedicated domain and / or downlink dedicated domain of the bandwidth portion in the RRC signaling.

[0280] Optionally, the level targeted by the channel access mode is determined by the field carrying the RRC signaling;

[0281] The channel access mode targets at least one of the following levels:

[0282] Terminal device level;

[0283] Uplink bandwidth at certain levels;

[0284] Downlink bandwidth partial level.

[0285] Optionally, the first unlicensed frequency band is a high-frequency unlicensed frequency band.

[0286] It should be noted that this network device embodiment corresponds one-to-one with the above method embodiments. All implementation methods in the above method embodiments are applicable to this network device embodiment and can achieve the same technical effect.

[0287] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0288] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0289] like Figure 10 As shown in the illustration, this application embodiment also provides a network device, including a processor 1000, a transceiver 1010, a memory 1020, and a program stored in the memory 1020 and executable on the processor 1000; wherein the transceiver 1010 is connected to the processor 1000 and the memory 1020 via a bus interface, and the processor 1000 is used to read the program in the memory and execute the following processes:

[0290] The transceiver 1010 sends a first indication message to the terminal device, the first indication message being used to indicate the channel access mode of the terminal device in the first unlicensed frequency band.

[0291] The channel access modes include: Listen Before You Talk (LBT) mode or No-LBT mode.

[0292] Transceiver 1010 is used to receive and send data under the control of processor 1000.

[0293] Among them, Figure 10 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 1000) and memory (memory 1020). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1010 can be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1000 can store data used by the processor 1000 during operation.

[0294] The processor 1000 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0295] Optionally, when the channel access mode is for a cell, the processor 1000 executes the procedure for sending the first indication information to the terminal device, and performs the following steps:

[0296] The first instruction information is sent to the terminal device via the first signaling;

[0297] The first signaling includes at least one of the following:

[0298] System message scheduling signaling, master information block, system messages and paging scheduling signaling.

[0299] Furthermore, when the first signaling includes scheduling signaling of system messages, the M bits reserved in the scheduling signaling are used to carry the first indication information;

[0300] Where M is an integer greater than or equal to 1.

[0301] Specifically, the scheduling signaling of the system message includes: Downlink Control Information (DCI) scrambled with System Information Radio Network Temporary Identifier (SI-RNTI).

[0302] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0303] Furthermore, when the first signaling includes a main information block, 1 bit in the reserved field of the main information block is used to carry the first indication information.

[0304] Furthermore, when the first signaling includes a system message, the N bits in the system message are used to carry the first indication information;

[0305] Where N is an integer greater than or equal to 1.

[0306] Furthermore, when the first signaling includes paging scheduling signaling, the K bits reserved in the paging scheduling signaling are used to carry the first indication information;

[0307] Where K is an integer greater than or equal to 1.

[0308] Specifically, the paging scheduling signaling includes: downlink control information (DCI) scrambled with the paging radio network temporary identifier (P-RNTI).

[0309] Optionally, when the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

[0310] Optionally, when the channel access mode is for a terminal, the processor 1000 executes the program for sending the first indication information to the terminal device, and performs the following steps:

[0311] The first instruction information is sent to the terminal device via Radio Resource Control (RRC) signaling.

[0312] Furthermore, the first indication information is carried in the uplink dedicated domain and / or downlink dedicated domain of the bandwidth portion in the RRC signaling.

[0313] Optionally, the level targeted by the channel access mode is determined by the field carrying the RRC signaling;

[0314] The channel access mode targets at least one of the following levels:

[0315] Terminal device level;

[0316] Uplink bandwidth at certain levels;

[0317] Downlink bandwidth partial level.

[0318] Optionally, the first unlicensed frequency band is a high-frequency unlicensed frequency band.

[0319] It should be noted that the network device provided in this application embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0320] This application also provides a computer-readable storage medium storing a computer program thereon, wherein the computer program, when executed by a processor, implements the steps of a mode indication method applied to a network device. The processor-readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs)).

[0321] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0322] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1A device that provides the functions specified in one or more boxes.

[0323] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0324] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0325] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A pattern indication method, characterized in that, Executed by the terminal device, including: The terminal device receives first indication information sent by a network device, the first indication information being used to indicate the channel access mode of the terminal device in a first unlicensed frequency band; The channel access modes include: Listen Before Talk (LBT) mode or No-LBT mode. When the channel access mode is for a cell, the first indication information is sent via a first signaling message, which includes a system message. The LBT mode indication field in the system message is optional. When the LBT mode indication field exists in the system message, the first indication information is used to indicate that the channel access mode of the terminal device in the first unlicensed frequency band is LBT mode; when the LBT mode indication field does not exist in the system message, the first indication information is used to indicate that the channel access mode of the terminal device in the first unlicensed frequency band is No-LBT mode. When the channel access mode is for a terminal, the first indication information is sent via Radio Resource Control (RRC) signaling. Following the first indication information sent by the receiving network device, the method further includes: Upon obtaining the channel access mode indication for the cell and the channel access mode indication for the terminal device, the channel access mode of the terminal device is determined based on the first indication information corresponding to the channel access mode indication for the terminal device.

2. The method according to claim 1, characterized in that, The first signaling also includes at least one of the following: System message scheduling signaling, master information block, paging scheduling signaling.

3. The method according to claim 2, characterized in that, When the first signaling includes scheduling signaling for system messages, the M bits reserved in the scheduling signaling are used to carry the first indication information; Where M is an integer greater than or equal to 1.

4. The method according to claim 2 or 3, characterized in that, The scheduling signaling of the system messages includes: System Information Radio Network Temporary Identifier (SI-RNTI) scrambled downlink control information (DCI).

5. The method according to claim 4, characterized in that, When the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

6. The method according to claim 2, characterized in that, When the first signaling includes a main information block, 1 bit in the reserved field of the main information block is used to carry the first indication information.

7. The method according to claim 1, characterized in that, The N bits in the system message are used to carry the first indication information; Where N is an integer greater than or equal to 1.

8. The method according to claim 2, characterized in that, When the first signaling includes paging scheduling signaling, the K bits reserved in the paging scheduling signaling are used to carry the first indication information; Where K is an integer greater than or equal to 1.

9. The method according to claim 2 or 8, characterized in that, The paging scheduling signaling includes: downlink control information (DCI) scrambled with the paging radio network temporary identifier (P-RNTI).

10. The method according to claim 9, characterized in that, When the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

11. The method according to claim 1, characterized in that, The first indication information is carried in the uplink dedicated domain and / or the downlink dedicated domain of the bandwidth portion in the RRC signaling.

12. The method according to claim 1, characterized in that, When the channel access mode is No-LBT mode, the field related to the channel access type in the DCI is 0 bits.

13. The method according to claim 1, characterized in that, The first unlicensed frequency band is an unlicensed frequency band greater than 52.6 GHz.

14. The method according to claim 1, characterized in that, The channel access mode is for the uplink bandwidth portion and / or the downlink bandwidth portion.

15. A terminal device, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The terminal device receives first indication information sent by the network device via a transceiver. The first indication information is used to indicate the channel access mode of the terminal device in the first unlicensed frequency band. The channel access modes include: Listen Before Talk (LBT) mode or No-LBT mode. When the channel access mode is for a cell, the first indication information is sent via a first signaling message, which includes a system message. The LBT mode indication field in the system message is optional. When the LBT mode indication field exists in the system message, the first indication information is used to indicate that the channel access mode of the terminal device in the first unlicensed frequency band is LBT mode; when the LBT mode indication field does not exist in the system message, the first indication information is used to indicate that the channel access mode of the terminal device in the first unlicensed frequency band is No-LBT mode. When the channel access mode is for a terminal, the first indication information is sent via Radio Resource Control (RRC) signaling. The processor, when executing the program, also performs the following steps: Upon obtaining the channel access mode indication for the cell and the channel access mode indication for the terminal device, the channel access mode of the terminal device is determined based on the first indication information corresponding to the channel access mode indication for the terminal device.

16. The terminal device according to claim 15, characterized in that, The first signaling also includes at least one of the following: System message scheduling signaling, master information block, paging scheduling signaling.

17. A terminal device, characterized in that, include: A receiving unit is configured to receive first indication information sent by a network device, wherein the first indication information is used to indicate the channel access mode of a terminal device in a first unlicensed frequency band; The channel access modes include: Listen Before Talk (LBT) mode or No-LBT mode. When the channel access mode is for a cell, the first indication information is sent via a first signaling message, which includes a system message. The LBT mode indication field in the system message is optional. When the LBT mode indication field exists in the system message, the first indication information is used to indicate that the channel access mode of the terminal device in the first unlicensed frequency band is LBT mode; when the LBT mode indication field does not exist in the system message, the first indication information is used to indicate that the channel access mode of the terminal device in the first unlicensed frequency band is No-LBT mode. When the channel access mode is for a terminal, the first indication information is sent via Radio Resource Control (RRC) signaling. After the receiving unit receives the first indication information sent by the network device, it further includes: The determining unit is configured to, upon obtaining a channel access mode indication for a cell and a channel access mode indication for a terminal device, determine the channel access mode of the terminal device based on the first indication information corresponding to the channel access mode indication for the terminal device.

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 according to any one of claims 1 to 14.

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