A channel occupancy indication method, device and related equipment

Abstract

The embodiment of the present application discloses a channel occupancy indication method, device and related equipment. The channel occupancy indication method includes: a network device determines channel occupancy indication information and sends the channel occupancy indication information to a terminal device, wherein the channel occupancy indication information is used to indicate the starting position of the terminal device periodically initiating channel occupancy and the fixed frame period occupied by the terminal device. This is beneficial for the terminal device to initiate channel occupancy according to the channel occupancy indication information when it needs to send temporary data, and then send the temporary data.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a channel occupancy indication method, device and related equipment. Background Art

[0002] In order to fairly and effectively utilize unlicensed spectrum and increase the data transmission rate of NR systems, the 3GPP standards organization will deploy NR networks on unlicensed spectrum.

[0003] Currently, a terminal device can use the channel access type of load-based equipment (LBE) to initiate channel occupation within a period of the unlicensed frequency band to send specific data. Among them, a period of the unlicensed frequency band is specified by the base station for the terminal device based on the specific data. However, in general, the base station does not know whether the terminal device has data to send and cannot allocate resources to the terminal device.

[0004] Therefore, for the terminal device, if there is temporary data that needs to be sent, there is still no channel occupancy time and the temporary data cannot be sent. Summary of the invention

[0005] The embodiments of the present application provide a channel occupancy indication method, apparatus and related equipment. When a terminal device sends temporary data, the terminal device initiates channel occupancy according to the channel occupancy indication method, thereby sending the temporary data.

[0006] In a first aspect, an embodiment of the present application provides a channel occupancy indication method, the method comprising: a network device determines channel occupancy indication information, and sends the channel occupancy indication information to a terminal device, wherein the channel occupancy indication information is used to indicate the starting position of the terminal device for periodically initiating channel occupancy and a fixed frame period occupied by the terminal device.

[0007] It can be seen that the use of the channel occupancy indication method is beneficial for the terminal device to initiate channel occupancy according to the channel occupancy indication information when it needs to send temporary data, and then send the temporary data.

[0008] In one implementation, the starting position of the terminal device periodically initiating channel occupancy is determined based on the offset information; and the fixed frame period occupied by the terminal device is determined based on the duration information.

[0009] In one implementation, the bias information includes first bias information, the duration information includes first duration information, and the specific implementation method of the network device determining the channel occupancy indication information is: the network device determines the first target position and the first target fixed frame period in the channel occupancy indication information, the first target position is determined based on the first bias information, and the first target fixed frame period is determined based on the first duration information.

[0010] In one implementation, the bias information also includes second bias information, the duration information also includes second duration information, and the network device also determines a second target position in the first target fixed frame period and a second target fixed frame period included in the first target fixed frame period, the second target position is determined based on the second bias information, and the second target fixed frame period is determined based on the second duration information.

[0011] In one implementation, the starting position at which the terminal device periodically initiates channel occupancy and the fixed frame period occupied by the terminal device are determined based on a bit map.

[0012] In one implementation, the bit map includes a first bit map, and the specific implementation method of the network device determining the channel occupancy indication information is: the network device determines a first target position and a first target fixed frame period in the channel occupancy indication information, and the first target position and the first target fixed frame period are determined based on the first bit map.

[0013] In one implementation, the bit map also includes a second bit map, and the network device also determines a second target position in the first target fixed frame period and a second target fixed frame period included in the first target fixed frame period, and the second target position and the second target fixed frame period are determined based on the second bit map.

[0014] In one implementation, before the network device determines the channel occupancy indication information, it also includes the following implementation: the network device determines the uplink configuration information of the terminal device, and the uplink configuration information is used to indicate that the terminal device has the ability to initiate channel occupancy; the network device sends the uplink configuration information.

[0015] In one implementation, the uplink configuration information includes a semi-statically configured uplink, a dynamically scheduled uplink, and uplink transmission information scheduled by a physical downlink control channel; the physical downlink control channel carries downlink control information DCI, and the DCI is used to indicate the terminal device / network device that initiates channel occupancy.

[0016] In one implementation, the channel occupancy indication information is also used to indicate the starting position of the next channel occupancy initiated periodically by the terminal device and the fixed frame period occupied by the terminal device.

[0017] In a second aspect, an embodiment of the present application provides a channel occupancy indication device, the channel occupancy indication device comprising:

[0018] A determination unit, used to determine channel occupancy indication information, wherein the channel occupancy indication information is used to indicate a starting position for a terminal device to periodically initiate channel occupancy and a fixed frame period occupied by the terminal device;

[0019] A sending unit is used to send the channel occupancy indication information to the terminal device.

[0020] In a third aspect, an embodiment of the present application provides a network device, the network device comprising:

[0021] Memory for storing computer programs;

[0022] The processor invokes a computer program to:

[0023] Determine channel occupancy indication information, where the channel occupancy indication information is used to indicate a starting position for a terminal device to periodically initiate channel occupancy and a fixed frame period occupied by the terminal device;

[0024] Sending the channel occupancy indication information to the terminal device.

[0025] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium for storing computer software instructions used by the above-mentioned user equipment, which includes a program involved in executing any of the methods described in the above-mentioned first aspect.

[0026] In the embodiment of the present application, the network device determines and sends the channel occupation indication information, and the channel occupation indication information is used to indicate the starting position of the terminal device to periodically initiate the channel occupation and the fixed frame period occupied by the terminal device. Therefore, when the terminal device has temporary data to send, it can determine the starting position of the periodic initiation of channel occupation and the fixed frame period occupied by the terminal device according to the channel occupation indication information, which is conducive to the terminal device sending the temporary data. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the system structure of a communication system provided in an embodiment of the present application;

[0028] Figure 2 A structural diagram of a frame structure provided in an embodiment of the present application;

[0029] Figure 3 A structural diagram of a fixed frame period provided in an embodiment of the present application;

[0030] Figure 4 A flow chart of a channel occupancy indication method provided in an embodiment of the present application;

[0031] Figure 5a A schematic diagram of another structure of a fixed frame period provided in an embodiment of the present application;

[0032] Figure 5b A schematic diagram of the structure of a bit map provided in an embodiment of the present application;

[0033] Figure 6 A flow chart of another channel occupancy indication method provided in an embodiment of the present application;

[0034] Figure 7a A schematic diagram of the structure of a first fixed frame period and a second fixed frame period provided in an embodiment of the present application;

[0035] Figure 7b A schematic diagram of the structure of another first fixed frame period and a second fixed frame period provided in an embodiment of the present application;

[0036] Figure 7c A schematic diagram of the structure of a first bitmap provided in an embodiment of the present application;

[0037] Figure 7d A schematic diagram of the structure of a second bit map provided in an embodiment of the present application;

[0038] Figure 8 A schematic diagram of the structure of channel occupancy indication information provided in an embodiment of the present application;

[0039] Fig. 9 A schematic diagram of the structure of a channel occupancy indication device provided in an embodiment of the present application;

[0040] Fig.10 A schematic diagram of the structure of a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0042] The communication system involved in this application is as follows Figure 1 As shown, the communication system may include but is not limited to a network device and a terminal device. Figure 1 The number and form of the devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of the present application. In actual applications, more than one network device and more than one terminal device may be included. Figure 1The communication system shown is explained by taking a network device 101 and a terminal device 102 as an example. The network device 101 can send channel occupancy indication information to the terminal device 102.

[0043] In the present application, the terminal device may also be referred to as a terminal, user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, user agent or user device. The terminal device in the embodiments of the present application may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.

[0044] In this application, a network device is a physical entity connected to a network. The network device may be a base station or a core network unit. The base station may be a 5G base station (gNB). The network device may also be a network device in a subsequent evolved communication system.

[0045] At present, if a terminal device needs to send a specific data, it can send a request message for channel occupation to the network device, so that the network device indicates a channel occupation time for sending the specific data to the terminal device according to the request message, and then the network device initiates channel occupation and sends the specific data. However, if the terminal device needs to send a temporary data, the temporary data is bursty data, and there is no channel occupation time allocated in advance by the base station, the temporary data cannot be sent.

[0046] In order to solve the above problem, the present application proposes a channel occupancy indication method, in which a network device determines channel occupancy indication information and sends the channel occupancy indication information to a terminal device. Thus, when the terminal device needs to send temporary data, it can determine the starting position for periodically initiating channel occupancy and the fixed frame period occupied by the terminal device according to the channel occupancy indication information, and then the terminal device can send the temporary data.

[0047] The technical solution proposed in this application can be applied to various communication systems, such as the global mobile communication system, the LTE frequency division duplex system, the LTE time division duplex system, the universal mobile communication system, the new wireless system and the subsequently evolved communication system.

[0048] To facilitate understanding of the embodiments disclosed in this application, some concepts involved in the embodiments of this application are first described. The description of these concepts includes but is not limited to the following.

[0049] Frame structure: The frame structure of the 3GPP NR (New Radio) system is as follows Figure 2 As shown, a radio frame has a length of 10 ms in the time domain, and each radio frame is divided into 10 subframes with a length of 1 ms in the time domain.

[0050] Frame Based Equipment (FBE): refers to a device that uses a periodic structure when receiving or sending data, and its period is a fixed frame period (ffp).

[0051] Listen-Before-Talk (LBT): A technology to avoid interference between multiple wireless communication systems using the same frequency band. Devices using LBT technology must first monitor whether the channel is occupied before sending data. If the channel is idle within a certain period of time, the device can occupy the channel and start transmitting data.

[0052] Frame-based device listen before talk (FBE LBT): Set a fixed frame period, perform a channel detection in each fixed frame period, such as performing a CCA (Clear Channel Assessment) detection within each CCA detection time. If the channel state is detected to be idle, the device can occupy the channel and start transmission; if the channel state is detected to be non-idle, the device cannot occupy the channel in the fixed frame period until the next channel detection period to continue detection. For example, Figure 3 As shown, Figure 3The figure is a structural diagram of two fixed frame periods, namely fixed frame period A and fixed frame period B. The device can perform CCA detection at the initial position of each fixed frame period. If the fixed frame period A is detected as an idle channel, the device can occupy the channel within the fixed frame period A. The fixed frame period includes the channel occupation time (COT) and the idle period (idle period). The channel occupation time is the time portion during which channel occupation can be initiated, and the idle period is the time portion during which channel occupation cannot be initiated. The maximum channel occupation time is a preset multiple of the fixed frame period, which is less than 1. For example, the preset multiple is 0.95, that is, the maximum channel occupation time is 0.95 times the fixed frame period. Due to the existence of the idle period in the fixed frame period, the device can only occupy the channel and transmit data within the channel occupation time.

[0053] Based on the above description, the present application embodiment proposes a method as follows Figure 4 The channel occupancy indication method 10 shown may include S401-S402:

[0054] S401: The network device determines channel occupancy indication information, where the channel occupancy indication information is used to indicate the starting position of the terminal device periodically initiating channel occupancy and the fixed frame period occupied by the terminal device;

[0055] S402: The network device sends channel occupancy indication information to the terminal device.

[0056] In one implementation, the starting position of the terminal device periodically initiating channel occupation is determined according to the offset information; the fixed frame period occupied by the terminal device is determined according to the duration information. The offset information includes the offset value, and the duration information includes the duration value, and the offset value and the duration value are determined by the network device through the RIV algorithm. Specifically, the following formula can be used to determine:

[0057] ceil(log2(N*(N+1) / 2)),

[0058] Among them, N is determined by a preset period, and the preset period is set in advance by the network device. For example, the network device determines that the preset period is T, and determines to divide the preset period T into multiple fixed frame periods Tx, then N = T / Tx. It can be understood that the offset value in the offset information and the duration value in the duration information can also be calculated by other formulas in the RIV algorithm, which is not limited in the embodiment of the present application.

[0059] For example, Figure 5a As shown, the preset period is 20ms, including two radio frames, namely subframe 0 and subframe 1, and the preset period is divided into two fixed frame periods of 10ms, namely Figure 5aThe fixed frame period corresponding to the numbers 1 and 2 in the . The network device determines through the RIV algorithm that the offset value in the offset information is 0 and the duration in the duration information is 1. Then the network device determines that the channel occupancy indication information is used to indicate the starting position of the terminal device to periodically initiate channel occupancy. Figure 5a The starting position of the fixed frame period corresponding to the number 1 and the fixed frame period occupied by the terminal device are Figure 5a The number 1 corresponds to the fixed frame period.

[0060] For another example, the preset period and the fixed frame period are also Figure 5a As shown, the network device determines through the RIV algorithm that the bias value in the bias information is 0, and the duration in the duration information is 2, then the network device determines that the channel occupancy indication information is used to indicate the starting position of the terminal device to periodically initiate channel occupancy. Figure 5a The starting position of the fixed frame period corresponding to the number 1 and the fixed frame period occupied by the terminal device are Figure 5a The fixed frame periods corresponding to numbers 1 and 2 in the figure are as follows. However, since there is an idle period in each fixed frame period, the terminal device Figure 5a After initiating channel occupation within the channel occupation duration included in the fixed frame period corresponding to the number 1, Figure 5a When the fixed frame period corresponding to the number 2 arrives, the channel occupation is initiated within the channel occupation duration included in the fixed frame period corresponding to the number 2. That is to say, the channel occupation initiated by the terminal device within two fixed frame periods is discontinuous, and the channel occupation is initiated separately.

[0061] In one implementation, the starting position of the terminal device periodically initiating channel occupation and the fixed frame period occupied by the terminal device are determined according to the bit map. The length value of the bit map is determined according to the preset period and the fixed frame period. For example, the preset period is T, the fixed frame period is Tx, and the length value of the bit map is N=T / Tx, that is, the bit map includes N bits.

[0062] The starting position of the terminal device periodically initiating channel occupancy may be the starting position of the fixed frame period corresponding to index 1 in the bit map, and the fixed frame period occupied by the terminal device may be the fixed frame period corresponding to index 1 in the bit map; optionally, the starting position of the terminal device periodically initiating channel occupancy may be the starting position of the fixed frame period corresponding to index 0 in the bit map, and the fixed frame period occupied by the terminal device may be the fixed frame period corresponding to index 0 in the bit map.

[0063] For example, the preset period and the fixed frame period are also Figure 5a As shown, the bit map determined by the network device is as follows Figure 5bAs shown, the index value of the first bit is 1, and the index value of the second bit is 0. If the starting position of the terminal device periodically initiating channel occupancy is the starting position of the fixed frame period corresponding to the index 1 in the bitmap, and the fixed frame period occupied by the terminal device is the fixed frame period corresponding to the index 1 in the bitmap, then the channel occupancy indication information determined by the network device is used to indicate that the starting position of the terminal device periodically initiating channel occupancy is Figure 5a The starting position of the fixed frame period corresponding to the number 1 in the figure, and the fixed frame period occupied by the terminal device are Figure 5a The number 1 corresponds to a fixed frame period.

[0064] In an embodiment of the present application, the network device determines and sends channel occupancy indication information for indicating the starting position of the terminal device to periodically initiate channel occupancy and the fixed frame period occupied by the terminal device. This is beneficial for the terminal device to perform CCA detection at the starting position of the fixed frame period indicated by the channel occupancy indication information when it determines that temporary data needs to be transmitted. If the channel is detected to be idle, the channel is occupied within the channel occupancy time within the fixed frame period indicated by the channel occupancy indication information and the temporary data is started to be transmitted, thereby realizing the transmission of temporary data by the terminal device.

[0065] If the network device divides the fixed frame period in the channel occupancy indication information method 10 into a plurality of fixed frame periods that can be occupied by the terminal devices, the embodiment of the present application proposes another method such as Figure 6 The channel occupancy indication method 20 shown may include S601-S603:

[0066] S601: The network device determines a first target position and a first target fixed frame period in the channel occupancy indication information;

[0067] S602: The network device determines a second target position in a first target fixed frame period and a second target fixed frame period included in the first target fixed frame period;

[0068] S603: The network device sends channel occupancy indication information to the terminal device.

[0069] In one implementation, in S601, the bias information includes first bias information, the duration information includes first duration information, the first target position is determined based on the first bias information, and the first target fixed frame period is determined based on the first duration information. The network device divides the preset period T into a plurality of first fixed frame periods Tx, the first target fixed frame period is any fixed frame period among the plurality of first fixed frame periods, and the first target fixed frame period is a fixed frame period for the terminal device to occupy a channel within the first fixed frame period.

[0070] The first offset value in the first offset information and the first duration value in the first duration information are determined by the network device through the RIV algorithm. Specifically, they can be determined using the following formula:

[0071] ceil(log2(N1*(N1+1) / 2)),

[0072] Among them, N1 is determined by a preset period and a first fixed frame period, and the preset period is set in advance by the network device. For example, the network device determines that the preset period is T, and determines to divide the preset period T into multiple first fixed frame periods Tx, then N1 = T / Tx. It can be understood that the first bias value in the first bias information and the first duration value in the first duration information can also be calculated by other formulas in the RIV algorithm, which is not limited in the embodiment of the present application.

[0073] For example, Figure 7a As shown, the preset period is 20ms, including two radio frames, namely subframe 0 and subframe 1, and the preset period is divided into two first fixed frame periods of 10ms in length, namely Figure 7a The fixed frame periods corresponding to the numbers 1 and 2 in the figure are divided into two second fixed frame periods, namely Figure 7a The network device determines that the first offset value in the first offset information is 0, and the first duration in the first duration information is 1. Then the channel occupancy indication information determined by the network device is used to indicate the starting position of the terminal device to periodically initiate channel occupancy. Figure 7a The starting position of the first fixed frame period corresponding to the number 1 in the figure, and the first target fixed frame period occupied by the terminal device are Figure 7a The number 1 corresponds to the first fixed frame period.

[0074] In one implementation, in S602, the second target position is determined according to the second offset information, and the second target fixed frame period is determined according to the second duration information. The network device divides the first fixed frame period in S601 into a plurality of second fixed frame periods, the second target fixed frame period is any fixed frame period in the plurality of second fixed frame periods, and the second target fixed frame period is a fixed frame period in which the terminal device occupies a channel within the second fixed frame period.

[0075] The second offset value in the second offset information and the second duration value in the second duration information are determined by the network device through the RIV algorithm. Specifically, they can be determined using the following formula:

[0076] ceil(log2(N2*(N2+1) / 2)),

[0077] Wherein, N2 is determined by the first fixed frame period and the second fixed frame period. For example, the first fixed frame period Tx determined by the network device is divided into a plurality of second fixed frame periods T UEx , then N2=Tx / T UEx It is understandable that the second offset value in the second offset information and the second duration value in the second duration information may also be calculated by other formulas in the RIV algorithm, which is not limited in the embodiment of the present application.

[0078] For example, the preset period, the first fixed frame period, and the second fixed frame period determined by the network device are also as follows: Figure 7a As shown, and the network device determines that the second offset value in the second offset information is 1, and the second duration value in the second duration information is 1, then the network device determines that the second target position in the first target fixed frame period is Figure 7a The starting position of the second fixed frame period corresponding to the letter b in the first target fixed frame period is Figure 7a That is, the channel occupancy indication information determined by the network device is used to indicate that the initial position of the terminal device to periodically initiate channel occupancy is Figure 7a The starting position of the second fixed frame period corresponding to the letter b in the figure and the fixed frame period occupied by the terminal device are Figure 7a The letter b in the figure corresponds to the second fixed frame period.

[0079] In another implementation, in S601, the first target position and the first target fixed frame period are determined according to the first bitmap. The length value of the first bitmap is determined according to the preset period and the first fixed frame period. For example, the preset period is T, the first fixed frame period is Tx, and the length of the first bitmap is N1=T / Tx, that is, the first bitmap includes N1 bits.

[0080] For example, Figure 7c As shown, the preset period is 20ms, including two radio frames, namely subframe 0 and subframe 1, and the preset period is divided into two first fixed frame periods of 10ms in length, namely Figure 7c The fixed frame periods corresponding to the numbers 1 and 2 in the figure are divided into five second fixed frame periods with a duration of 2 ms, which are respectively Figure 7c The fixed frame period corresponding to the letter an in the network device is the first bit map determined by Figure 7c As shown, if the index value in the first bitmap is 1, indicating the corresponding fixed frame period, the first target position is Figure 7b The starting position of the first fixed frame period corresponding to the number 2 in the figure, the first target fixed frame period is Figure 7bThe number 2 corresponds to the first fixed frame period.

[0081] In another implementation, in S602, the second target position and the second target fixed frame period are determined according to the second bitmap. The length value of the second bitmap is determined according to the preset period and the second fixed frame period. For example, the preset period is T, the first fixed frame period is Tx, and the second fixed frame period is T UEx , the length of the second bitmap is N2 = T / T UEx , that is, the second bit map includes N2 bits.

[0082] For example, the preset period, the first fixed frame period, and the second fixed frame period determined by the network device are as follows: Figure 7b As shown, the network device determines the second bit map as Figure 7d As shown, if the index value in the second bitmap is 1, indicating the corresponding fixed frame period, the network device determines that the second target position in the first target fixed frame period is Figure 7b The starting position of the second fixed frame period corresponding to the letter f in the middle, the second target frame period included in the first target fixed frame period is Figure 7b In other words, the channel occupancy indication information determined by the network device is used to indicate that the second target position for the terminal device to periodically initiate channel occupancy is Figure 7b The starting position of the second fixed frame period corresponding to f in the figure, and the second target fixed frame period occupied by the terminal device are Figure 7b The letters f, h and m correspond to the second fixed frame period.

[0083] In the embodiment of the present application, the network device divides the preset period into a plurality of first fixed frame periods, and divides each first fixed frame period into a plurality of second fixed frame periods, therefore, the network device determines that the channel occupancy indication information includes: the first target position and the first target fixed frame period in the channel occupancy indication information, and determines the second target position in the first target fixed frame period and the second target frame period included in the first target fixed frame period. By indicating the first position and the first target fixed frame period, as well as the second position and the second target fixed frame period respectively, the starting position of the periodic initiation of channel occupancy by the terminal device and the fixed frame period of the channel occupancy of the terminal device are indicated, so that when the terminal device initiates temporary data, it can also determine the starting position of the channel occupancy and the fixed frame period of the channel occupancy through the channel occupancy indication information, and then occupy the channel and send the temporary data.

[0084] In the channel occupancy indication method 10 and the channel occupancy indication method 20, the channel occupancy indication information is also used to indicate the starting position of the terminal device to periodically initiate the next channel occupancy and the fixed frame period occupied by the terminal device.

[0085] Among them, the channel occupancy indication information is carried in the downlink control information (Downlink Control Information, DCI), and the DCI is DCI format 2-0. DCI format 2-0 is a DCI format that carries dynamic slot format information (Dynamic Slot Format Indication, D-SFI). The SFI information carried on DCI format 2-0 can indicate the format of one or more time slots on one or more carriers, which is called a time slot format combination set. The position of the time slot format combination set in the DCI is configured by high-level signaling.

[0086] The channel occupancy indication information is carried in DCI format 2-0, and a one-bit indication is added in DCI format 2-0, which is used to indicate that after the current fixed frame period ends, the starting position of the next channel occupancy initiated by the terminal device periodically and the fixed frame period occupied by the terminal device are the fixed frame period indicated by the channel occupancy indication information in the next fixed frame period; or, this bit is used to indicate that after the current fixed frame period ends, the starting position of the next channel occupancy initiated by the terminal device periodically and the fixed frame period occupied by the terminal device are not the fixed frame period indicated by the channel occupancy indication information in the next fixed frame period.

[0087] Whether the terminal device initiates channel occupancy depends on the uplink configuration of the terminal device. That is to say, at the beginning of the fixed frame period occupied by the terminal device, if the terminal device has an uplink configuration, it indicates that the terminal device has the ability to initiate channel occupancy. Only then can the terminal device initiate channel occupancy and access the channel. Therefore, before S401 and S601 in the channel occupancy indication method 10 and the channel occupancy indication method 20, respectively, the following steps may also be performed: S11: The network device determines the uplink configuration information of the terminal device, and the uplink configuration information is used to indicate that the terminal device has the ability to initiate channel occupancy; S12: The network device sends the uplink configuration information.

[0088] In one implementation, the uplink configuration information includes semi-statically configured uplinks, dynamically scheduled uplinks, and uplink transmission information scheduled by a physical downlink control channel; the physical downlink control channel carries downlink control information DCI, which is used to indicate the terminal device / network device that initiated the channel occupation. The DCI format of the DCI is DCI format 0-0 and DCI format 0-1. Through the index in the DCI format, it can be determined whether the channel occupation is initiated by the terminal device or the network device. For example, the DCI format is Figure 8 As shown, when the index in DCI format 0-0 and DCI format 0-1 is 0, it indicates that the channel occupancy is initiated by the network device; when the index in DCI format 0-0 and DCI format 0-1 is 1, it indicates that the channel occupancy is initiated by the terminal device.

[0089] In one implementation, the uplink configuration information includes a physical uplink shared channel for configuration authorization and a physical uplink control channel for carrying scheduling authorization.

[0090] In one implementation, the uplink configuration information includes a semi-statically configured uplink, such as a physical uplink shared channel configured with authorization, a physical uplink control channel configured with semi-static signaling, a detection reference signal configured with semi-static signaling, a random access resource location configured with semi-static signaling, and the like.

[0091] See also Fig. 9 , Fig. 9 : is a schematic diagram of the structure of a channel occupancy indication device provided by an embodiment of the present invention. The channel occupancy indication device is used in a network device. The channel occupancy indication device 90 may include:

[0092] A determination unit 901 is used to determine channel occupancy indication information, where the channel occupancy indication information is used to indicate a starting position for a terminal device to periodically initiate channel occupancy and a fixed frame period occupied by the terminal device;

[0093] The sending unit 902 is used to send the channel occupancy indication information to the terminal device.

[0094] In one implementation, the starting position at which the terminal device periodically initiates channel occupancy is determined based on offset information; and the fixed frame period occupied by the terminal device is determined based on duration information.

[0095] In one implementation, the bias information includes first bias information, the duration information includes first duration information, and the specific implementation method of the determination unit 901 determining the channel occupancy indication information is: the determination unit 901 determines the first target position and the first target fixed frame period in the channel occupancy indication information, the first target position is determined based on the first bias information, and the first target fixed frame period is determined based on the first duration information.

[0096] In one implementation, the bias information also includes second bias information, the duration information also includes second duration information, and the determination unit 901 is further used to: determine a second target position in the first target fixed frame period and a second target fixed frame period included in the first target fixed frame period, the second target position is determined based on the second bias information, and the second target fixed frame period is determined based on the second duration information.

[0097] In one implementation, the starting position at which the terminal device periodically initiates channel occupancy and the fixed frame period occupied by the terminal device are determined based on a bit map.

[0098] In one implementation, the bit map includes a first bit map, and the specific implementation method of the determination unit 901 determining the channel occupancy indication information is: the determination unit 901 determines the first target position and the first target fixed frame period in the channel occupancy indication information, and the first target position and the first target fixed frame period are determined based on the first bit map.

[0099] In one implementation, the bit map also includes a second bit map, and the determination unit 901 is further used to determine a second target position in the first target fixed frame period and a second target fixed frame period included in the first target fixed frame period, and the second target position and the second target fixed frame period are determined based on the second bit map.

[0100] In one implementation, before the determination unit 901 determines the channel occupancy indication information, the following steps may also be performed: the determination unit 901 determines the uplink configuration information of the terminal device, and the uplink configuration information is used to indicate that the terminal device has the ability to initiate channel occupancy; the sending unit 902 sends the uplink configuration information.

[0101] In one implementation, the uplink configuration information includes a semi-statically configured uplink, a dynamically scheduled uplink, and uplink transmission information scheduled by a physical downlink control channel; the physical downlink control channel carries downlink control information DCI, and the DCI is used to indicate the terminal device / network device that initiates channel occupancy.

[0102] In one implementation, the channel occupancy indication information is also used to indicate the starting position of the next channel occupancy initiated periodically by the terminal device and the fixed frame period occupied by the terminal device.

[0103] In the embodiment of the present application, channel occupancy indication information is determined and sent, and the channel occupancy indication information is used to indicate the starting position of the periodic initiation of channel occupancy by the terminal device and the fixed frame period occupied by the terminal device. Therefore, when the terminal device has temporary data to send, the starting position of the periodic initiation of channel occupancy and the fixed frame period occupied by the terminal device can be determined according to the channel occupancy indication information, which is conducive to the terminal device sending the temporary data.

[0104] See also Fig.10 , Fig.10 A schematic diagram of the structure of a network device provided in an embodiment of the present application. The network device 100 described in the embodiment of the present application includes: a processor 1001 and a memory 1002, wherein the processor 1001 and the memory 1002 are connected via one or more communication buses.

[0105] The processor 1001 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor. The processor 1001 is configured to support the user equipment to execute Figure 4 and Figure 6 The corresponding functions of the network device in the method.

[0106] The memory 1002 may include a read-only memory and a random access memory, and provide computer programs and data to the processor 1001. A portion of the memory 1002 may also include a non-volatile random access memory. When the processor 1001 calls the computer program, it is used to execute:

[0107] Determine channel occupancy indication information, where the channel occupancy indication information is used to indicate a starting position for a terminal device to periodically initiate channel occupancy and a fixed frame period occupied by the terminal device;

[0108] Sending the channel occupancy indication information to the terminal device.

[0109] In one implementation, the starting position at which the terminal device periodically initiates channel occupancy is determined based on offset information; and the fixed frame period occupied by the terminal device is determined based on duration information.

[0110] In one implementation, the bias information includes first bias information, the duration information includes first duration information, and the specific implementation method of the processor 1001 determining the channel occupancy indication information is: the processor 1001 determines the first target position and the first target fixed frame period in the channel occupancy indication information, the first target position is determined based on the first bias information, and the first target fixed frame period is determined based on the first duration information.

[0111] In one implementation, the bias information also includes second bias information, the duration information also includes second duration information, and the processor 1001 further performs the following steps: the processor 1001 determines a second target position in the first target fixed frame period and a second target fixed frame period included in the first target fixed frame period, the second target position being determined based on the second bias information, and the second target fixed frame period being determined based on the second duration information.

[0112] In one implementation, the starting position at which the terminal device periodically initiates channel occupancy and the fixed frame period occupied by the terminal device are determined based on a bit map.

[0113] In one implementation, the bit map includes a first bit map, and the processor 1001 specifically performs the following steps when determining the channel occupancy indication information: the processor 1001 determines a first target position and a first target fixed frame period in the channel occupancy indication information, and the first target position and the first target fixed frame period are determined based on the first bit map.

[0114] In one implementation, the bit map also includes a second bit map, and the processor 1001 is further used to perform the following steps: the processor 1001 determines a second target position in the first target fixed frame period and a second target fixed frame period included in the first target fixed frame period, and the second target position and the second target fixed frame period are determined based on the second bit map.

[0115] In one implementation, before the processor 1001 determines the channel occupancy indication information, the following steps may also be performed: the processor 1001 determines the uplink configuration information of the terminal device, and the uplink configuration information is used to indicate that the terminal device has the ability to initiate channel occupancy; the processor 1001 sends the uplink configuration information.

[0116] In one implementation, the uplink configuration information includes a semi-statically configured uplink, a dynamically scheduled uplink, and uplink transmission information scheduled by a physical downlink control channel; the physical downlink control channel carries downlink control information DCI, and the DCI is used to indicate the terminal device / network device that initiates channel occupancy.

[0117] In one implementation, the channel occupancy indication information is also used to indicate the starting position of the next channel occupancy initiated periodically by the terminal device and the fixed frame period occupied by the terminal device.

[0118] In the embodiment of the present application, the processor 1001 determines and sends channel occupancy indication information, and the channel occupancy indication information is used to indicate the starting position of the periodic initiation of channel occupancy by the terminal device and the fixed frame period occupied by the terminal device. Thus, when the terminal device has temporary data to send, it can determine the starting position of the periodic initiation of channel occupancy and the fixed frame period occupied by the terminal device according to the channel occupancy indication information, which is conducive to the terminal device sending the temporary data.

[0119] The present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program. When the computer program is executed by a processor, it can be used to implement the present application. Figure 4 and Figure 6 The channel occupancy indication method described in the corresponding embodiment will not be repeated here.

[0120] The computer-readable storage medium may be an internal storage unit of the terminal device described in any of the foregoing embodiments, such as a hard disk or memory of the device. The computer-readable storage medium may also be an external storage device of the terminal device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the device. Furthermore, the computer-readable storage medium may also include both an internal storage unit of the terminal device and an external storage device. The computer-readable storage medium is used to store the computer program and other programs and data required by the terminal device. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

[0121] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0122] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A channel occupancy indication method, characterized in that: The method comprises: The network device determines channel occupancy indication information, where the channel occupancy indication information is used to indicate a starting position for the terminal device to periodically initiate channel occupancy and a fixed frame period occupied by the terminal device, where the starting position is determined according to the offset information, or the starting position is determined according to a bit map; The network device sends the channel occupancy indication information to the terminal device; The network device sends downlink control information DCI to the terminal device, where the DCI is used to indicate that channel occupancy is initiated by the terminal device or the network device.

2. The method according to claim 1, characterized in that: The starting position is determined according to the offset information, and the fixed frame period occupied by the terminal device is determined according to the duration information.

3. The method according to claim 2, characterized in that The offset information includes first offset information, the duration information includes first duration information, and the network device determines the channel occupancy indication information, including: The network device determines a first target position and a first target fixed frame period in the channel occupancy indication information, wherein the first target position is determined based on the first offset information, and the first target fixed frame period is determined based on the first duration information.

4. The method according to claim 3, characterized in that The offset information further includes second offset information, the duration information further includes second duration information, and the method further includes: The network device determines a second target position in the first target fixed frame period and a second target fixed frame period included in the first target fixed frame period, the second target position is determined based on the second bias information, and the second target fixed frame period is determined based on the second duration information.

5. The method according to claim 1, characterized in that The starting position is determined according to a bit map, and the fixed frame period occupied by the terminal device is determined according to the bit map.

6. The method according to claim 5, characterized in that The bitmap includes a first bitmap, and the network device determines the channel occupancy indication information, including: The network device determines a first target position and a first target fixed frame period in the channel occupancy indication information, where the first target position and the first target fixed frame period are determined according to the first bit map.

7. The method according to claim 6, characterized in that The bitmap further includes a second bitmap, and the method further includes: The network device determines a second target position in the first target fixed frame period and a second target fixed frame period included in the first target fixed frame period, wherein the second target position and the second target fixed frame period are determined according to the second bit map.

8. The method according to claim 1, characterized in that Before the network device determines the channel occupancy indication information, the method further includes: The network device determines uplink configuration information of the terminal device, where the uplink configuration information is used to indicate that the terminal device has the ability to initiate channel occupation; The network device sends the uplink configuration information.

9. The method according to claim 8, characterized in that The uplink configuration information includes semi-statically configured uplink, dynamically scheduled uplink, and uplink transmission information scheduled by a physical downlink control channel.

10. The method according to claim 1, characterized in that The channel occupancy indication information is also used to indicate the starting position of the next channel occupancy initiated periodically by the terminal device and the fixed frame period occupied by the terminal device.

11. A channel occupancy indication method, characterized in that: The method comprises: The terminal device receives the channel occupancy indication information sent by the network device, where the channel occupancy indication information is used to indicate the starting position of the periodic channel occupancy initiated by the terminal device and the fixed frame period occupied by the terminal device, where the starting position is determined according to the offset information, or the starting position is determined according to the bit map; The terminal device receives downlink control information DCI sent by the network device, where the DCI is used to indicate that channel occupancy is initiated by the terminal device or the network device.

12. A channel occupancy indication device, characterized in that: The channel occupancy indicating device comprises: A determination unit, configured to determine channel occupancy indication information, wherein the channel occupancy indication information is used to indicate a starting position at which a terminal device periodically initiates channel occupancy and a fixed frame period occupied by the terminal device, wherein the starting position is determined according to offset information, or the starting position is determined according to a bit map; A sending unit, configured to send the channel occupancy indication information to the terminal device; The sending unit is further used to send downlink control information DCI to the terminal device, where the DCI is used to indicate that channel occupancy is initiated by the terminal device or the network device.

13. A channel occupancy indication device, characterized in that: The channel occupancy indication device comprises: A receiving unit, configured to receive channel occupancy indication information sent by a network device, wherein the channel occupancy indication information is used to indicate a starting position for the device to periodically initiate channel occupancy and a fixed frame period occupied by the device, wherein the starting position is determined according to the offset information, or the starting position is determined according to a bit map; The receiving unit is further used to receive downlink control information DCI sent by the network device, where the DCI is used to indicate that channel occupancy is initiated by the terminal device or the network device.

14. A network device, characterized in that: The method comprises a processor and a memory, wherein the processor and the memory are connected to each other, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the method according to any one of claims 1 to 10.

15. A terminal device, characterized in that: The method comprises a processor and a memory, wherein the processor and the memory are connected to each other, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the method according to claim 11.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the method according to any one of claims 1 to 10, or executes the method according to claim 11.

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