WO2022033315A1

WO2022033315A1 - Channel occupation indication method and apparatus, and related device

Info

Publication number: WO2022033315A1
Application number: PCT/CN2021/109053
Authority: WO
Inventors: 周欢; 沈兴亚
Original assignee: 北京紫光展锐通信技术有限公司
Priority date: 2020-08-13
Filing date: 2021-07-28
Publication date: 2022-02-17
Also published as: CN114080046A

Abstract

Disclosed are a channel occupation indication method and apparatus, and a related device. The channel occupation indication method comprises: a network device determining channel occupation indication information, and sending the channel occupation indication information to a terminal device, the channel occupation indication information being used for indicating a start position at which the terminal device periodically initiates channel occupation, and a fixed frame period occupied by the terminal device. As such, when needing to send temporary data, the terminal device initiates channel occupation according to the channel occupation indication information, and then sends the temporary data.

Description

A kind of channel occupation indication method, device and related equipment

technical field

The present application relates to the field of communication technologies, and in particular, to a channel occupancy indication method, device, and related equipment.

Background technique

In order to utilize the unlicensed spectrum fairly and effectively and improve the data transmission rate of the new radio (NR) system, the 3GPP standards organization will deploy the NR network on the unlicensed spectrum.

At present, a terminal device can use the channel access type of Load Based Equipment (LBE) to initiate channel occupation within a period of an unlicensed frequency band, thereby sending specific data. Wherein, a period of the unlicensed frequency band is designated by the base station for the terminal device according to the specific data. However, in general, the base station does not know whether the terminal device has data to transmit, and cannot allocate resources to the terminal device.

Therefore, for the terminal device, if there is temporary data that needs to be sent, there is still no channel occupied time, and the temporary data cannot be sent.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a channel occupancy indication method, device, and related equipment. When a terminal device sends temporary data, the terminal device initiates channel occupation according to the channel occupancy indication method, thereby sending the temporary data.

In a first aspect, an embodiment of the present application provides a channel occupancy indication method, the method includes: a network device determines channel occupancy indication information, and sends the channel occupancy indication information to a terminal device, where the channel occupancy indication information is used to indicate The terminal equipment periodically initiates the starting position of the channel occupied and the fixed frame period occupied by the terminal equipment.

It can be seen that the adoption 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.

In an implementation manner, the starting position where the terminal equipment periodically initiates channel occupation is determined according to offset information; the fixed frame period occupied by the terminal equipment is determined according to duration information.

In an implementation manner, the offset information includes first offset information, the duration information includes first duration information, and a specific implementation of the network device determining the channel occupation indication information is as follows: the network device determines the the first target position and the first target fixed frame period in the channel occupancy indication information, the first target position is determined according to the first offset information, and the first target fixed frame period is determined according to the first target fixed frame period The duration information is confirmed.

In an implementation manner, the offset information further includes second offset information, the duration information further includes second duration information, and the network device further determines a second target position in the first target fixed frame period. and the second target fixed frame period included in the first target fixed frame period, 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 target fixed frame period. 2. The duration information is determined.

In an implementation manner, the starting position where the terminal device periodically initiates channel occupation and the fixed frame period occupied by the terminal device are determined according to a bitmap.

In an implementation manner, the bitmap includes a first bitmap, and a specific implementation manner of the network device determining the channel occupancy indication information is: the network device determines the first target position in the channel occupancy indication information. and a first target fixed frame period, the first target position and the first target fixed frame period are determined according to the first bitmap.

In an implementation manner, the bitmap further includes a second bitmap, and the network device further determines that the second target position in the first target fixed frame period and the first target fixed frame period include: The second target fixed frame period, the second target position and the second target fixed frame period are determined according to the second bitmap.

In an implementation manner, before the network device determines the channel occupation indication information, it further includes the following implementation manner: the network device determines uplink configuration information of the terminal device, and the uplink configuration information is used to indicate that the terminal device has an initiation channel. Occupied capability; the network device sends the uplink configuration information.

In an implementation manner, 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, The DCI is used to indicate the terminal device/network device that initiates channel occupation.

In an implementation manner, the channel occupancy indication information is further used to instruct the terminal device to periodically initiate a start position of the next channel occupancy and a fixed frame period occupied by the terminal device.

In a second aspect, an embodiment of the present application provides a channel occupancy indicating device, where the channel occupancy indicating device includes:

a processing unit, configured to determine channel occupancy indication information, where the channel occupancy indication information is used to instruct the terminal equipment to periodically initiate the starting position of channel occupation and the fixed frame period occupied by the terminal equipment;

A communication unit, configured to send the channel occupation indication information to the terminal device.

In a third aspect, an embodiment of the present application provides a network device, where the network device includes:

memory for storing computer programs;

A processor, which invokes a computer program to perform the following operations:

determining channel occupancy indication information, where the channel occupancy indication information is used to instruct the terminal equipment to periodically initiate the starting position of channel occupation and the fixed frame period occupied by the terminal equipment;

Send the channel occupation indication information to the terminal device.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium for storing computer software instructions used by the user equipment, including a program for executing any of the methods described in the first aspect.

In the embodiment of the present application, the network device determines and sends channel occupation indication information, where the channel occupation indication information is used to indicate the starting position of the terminal equipment to periodically initiate channel occupation and the fixed frame period of the terminal equipment occupation. Therefore, when there is temporary data to be sent, the terminal device can determine the starting position for periodically initiating channel occupation and the fixed frame period occupied by the terminal device according to the channel occupation indication information, thereby facilitating the terminal device to send the temporary data.

Description of drawings

FIG. 1 is a schematic diagram of a system structure of a communication system according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a frame structure provided by an embodiment of the present application;

3 is a schematic structural diagram of a fixed frame period provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a channel occupancy indication method provided by an embodiment of the present application;

5a is a schematic structural diagram of another fixed frame period provided by an embodiment of the present application;

5b is a schematic structural diagram of a bitmap provided by an embodiment of the present application;

6 is a schematic flowchart of another channel occupancy indication method provided by an embodiment of the present application;

7a is a schematic structural diagram of a first fixed frame period and a second fixed frame period provided by an embodiment of the application;

7b is a schematic structural diagram of another first fixed frame period and a second fixed frame period provided by an embodiment of the present application;

7c is a schematic structural diagram of a first bit map provided by an embodiment of the present application;

FIG. 7d is a schematic structural diagram of a second bitmap provided by an embodiment of the application;

FIG. 8 is a schematic structural diagram of channel occupancy indication information provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a channel occupancy indicating device according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the application.

detailed description

The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

The communication system involved in this application is shown in FIG. 1 . The communication system may include, but is not limited to, a network device and a terminal device. The number and form of the devices shown in FIG. 1 are used as examples and do not constitute a limitation to the embodiments of the application. Practical applications may include more than one network device and more than one terminal device. The communication system shown in FIG. 1 is described by taking a network device 101 and a terminal device 102 as an example, and the network device 101 can send channel occupation indication information to the terminal device 102 .

In this application, terminal equipment may also be referred to as terminal, user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, user agent or user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( Wireless terminals in transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, etc.

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

At present, if the terminal device needs to send a specific data, it can send request information for requesting channel occupation to the network device, so that the network device indicates to the terminal device a channel occupation duration that can send the specific data according to the request information, and then the network device initiates The channel is occupied and that specific data is sent. However, if the terminal device needs to send a temporary data, the temporary data is burst data, and the temporary data cannot be sent without the channel occupation duration allocated in advance by the base station.

In order to solve the above problems, the present application proposes a channel occupation indication method. A network device determines channel occupation indication information and sends the channel occupation indication information to a terminal device. Therefore, when the terminal equipment needs to send temporary data, it can determine the starting position for periodically initiating channel occupation and the fixed frame period occupied by the terminal equipment according to the channel occupation indication information, and then the terminal equipment can send the temporary data.

The technical solutions proposed in this application can be applied to various communication systems, such as global system for mobile communications, LTE frequency division duplex system, LTE time division duplex system, universal mobile communication system, new wireless system, and subsequently evolved communication systems.

In order to facilitate the understanding of the embodiments disclosed in the present application, some concepts involved in the embodiments of the present application are first described. Elaborations of these concepts include, but are not limited to, the following.

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

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).

Listen-Bfore-Talk (LBT): It is a technology to avoid interference between multiple wireless communication systems using the same frequency band. A device using LBT technology must 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.

Frame-based listen-before-talk (FBE LBT): Set a fixed frame period, and perform channel detection once in each fixed frame period, such as in each CCA (Clear Channel Assessment, idle channel assessment) detection time. CCA detection, 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 within the fixed frame period until the next channel detection period. detection. For example, as shown in Figure 3, Figure 3 is a schematic 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 an idle channel, the device can occupy the channel in the fixed frame period A, and the fixed frame period includes the channel occupation duration (COT) and the idle period (idle period), and the channel occupation duration is the part of the duration that can initiate channel occupation , the idle period is the part of the time that the channel cannot be occupied, and the maximum channel occupation time is a preset multiple of the fixed frame period, and the preset multiple is less than 1, for example, the preset multiple is 0.95, that is, the maximum channel occupation time is the fixed frame period. 0.95 times. 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 period.

Based on the above description, an embodiment of the present application proposes a channel occupancy indication method 10 as shown in FIG. 4 , and the method may include S401-S402:

S401: The network device determines channel occupancy indication information, where the channel occupancy indication information is used to instruct the terminal equipment to periodically initiate the starting position of the channel occupation and the fixed frame period occupied by the terminal equipment;

S402: The network device sends channel occupation indication information to the terminal device.

In an implementation manner, the starting position where the terminal equipment periodically initiates channel occupation is determined according to the offset information; the fixed frame period occupied by the terminal equipment is determined according to the duration information. The offset information includes an offset value, and the duration information includes a duration value, and the offset value and the duration value are determined by the network device through the RIV algorithm. Specifically, it can be determined by the following formula:

ceil(log2(N*(N+1)/2)),

Wherein, 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 that the preset period T is divided 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 are not limited in this embodiment of the present application.

For example, as shown in Fig. 5a, 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 with a duration of 10ms, which are respectively shown in Fig. 5a Fixed frame period corresponding to number 1 and number 2. 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 occupation indication information is used to indicate that the terminal device periodically initiates channel occupation. The starting position of the fixed frame period corresponding to the number 1 in 5a and the fixed frame period occupied by the terminal device are the fixed frame period corresponding to the number 1 in FIG. 5a.

For another example, the preset period and the fixed frame period are also shown in FIG. 5a. The network device determines that the offset value in the offset information is 0 through the RIV algorithm, and the duration in the duration information is 2, and the network device determines the channel occupation indication. The information is used to indicate that the starting position of the terminal equipment to periodically initiate channel occupation is the starting position of the fixed frame period corresponding to the number 1 in Figure 5a and the fixed frame period occupied by the terminal equipment is the corresponding number 1 and number 2 in Figure 5a. However, since there is an idle period in each fixed frame period, after the terminal device initiates channel occupation within the channel occupation duration included in the fixed frame period corresponding to the number 1 in Figure 5a, the number 2 in Figure 5a When the corresponding fixed frame period arrives, channel occupation is initiated within the channel occupation duration included in the fixed frame period corresponding to number 2, that is, the terminal device initiates channel occupation within two fixed frame periods is discontinuous. Yes, the channel occupation is initiated separately.

In an implementation manner, the starting position where the terminal device periodically initiates channel occupation and the fixed frame period occupied by the terminal device are determined according to the bitmap. The length value of the bitmap 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 of the bitmap is N=T/Tx, that is, the bitmap includes N bits.

The starting position of the terminal equipment periodically initiates the channel occupation can be 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 equipment can be the fixed frame corresponding to the index 1 in the bitmap Period; optionally, the starting position of the terminal equipment periodically initiates the channel occupation may be the starting position of the fixed frame period corresponding to the index 0 in the bitmap, and the fixed frame period occupied by the terminal equipment may be the index in the bitmap A fixed frame period corresponding to 0.

For example, the preset period and the fixed frame period are also shown in Figure 5a, and the bitmap determined by the network device is shown in Figure 5b. The index value of the first bit is 1, and the index value of the second bit is 0. If The starting position occupied by the terminal equipment periodically initiates the channel as 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 equipment is the fixed frame period corresponding to the index 1 in the bitmap. For example, the channel occupation indication information determined by the network device is used to indicate that the starting position of the terminal equipment to periodically initiate channel occupation is the starting position of the fixed frame period corresponding to number 1 in Figure 5a, and the fixed frame period occupied by the terminal equipment. is the fixed frame period corresponding to the number 1 in Fig. 5a.

In the embodiment of the present application, the network device determines and sends the channel occupancy indication information used to instruct the terminal device to periodically initiate channel occupation and the fixed frame period occupied by the terminal device, which is helpful for the terminal device to determine that there is a need for temporary data. During transmission, CCA detection can be performed at the starting position of the fixed frame period indicated by the channel occupancy indication information. If the channel is detected to be idle, the channel will be occupied within the channel occupancy duration within the fixed frame period indicated by the channel occupancy indication information and start. The temporary data is transmitted to realize the transmission of the temporary data by the terminal device.

If the network device divides the fixed frame period in the channel occupancy indication information method 10 into fixed frame periods that can be occupied by a plurality of terminal equipment, the embodiment of the present application proposes another channel occupancy indication method 20 as shown in FIG. 6 . This method Can include S601-S603:

S601: The network device determines the first target position and the first target fixed frame period in the channel occupation indication information;

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

S603: The network device sends channel occupation indication information to the terminal device.

In an embodiment, in S601, the offset information includes first offset information, the duration information includes first duration information, the first target position is determined according to the first offset information, and the first target fixed frame period is determined according to the first target fixed frame period. A long time information is confirmed. 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 the first fixed frame period of the terminal device in the first fixed frame period. A fixed frame period for channel occupation within a fixed frame period.

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, it can be determined by the following formula:

ceil(log2(N1*(N1+1)/2)),

Wherein, 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 that the preset period T is divided into a plurality of first fixed frame periods Tx, then N1=T/Tx. It can be understood that, the first offset value in the first offset information and the first duration value in the first duration information may also be calculated by other formulas in the RIV algorithm, which are not limited in this embodiment of the present application.

For example, as shown in FIG. 7a, 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 with a duration of 10ms, respectively as shown in FIG. The fixed frame periods corresponding to

numbers

1 and 2 in 7a, and then each first fixed frame period is divided into two second fixed frame periods, which are the fixed frame periods corresponding to letters a, b, c, and d in 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, and the channel occupation indication information determined by the network device is used to instruct the terminal device to periodically initiate channel occupation. The starting position is the starting position of the first fixed frame period corresponding to the number 1 in FIG. 7a, and the first target fixed frame period occupied by the terminal device is the first fixed frame period corresponding to the number 1 in FIG. 7a.

In one embodiment, 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 one of the plurality of second fixed frame periods, and the second target fixed frame period is the terminal The fixed frame period during which the device performs channel occupation in the second fixed frame period.

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, it can be determined by the following formula:

ceil(log2(N2*(N2+1)/2)),

Wherein, N2 is determined by the first fixed frame period and the second fixed frame period. For example, for the first fixed frame period Tx determined by the network device, the first fixed frame period is divided into a plurality of second fixed frame periods T _UEx , then N2=Tx/T _UEx . It can be understood 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 are not limited in this embodiment of the present application.

For example, the preset period, the first fixed frame period, and the second fixed frame period determined by the network device are also shown in FIG. 7a, and the second offset value in the second offset information determined by the network device is 1, and the second duration The value of the second duration in the information is 1, then the network device determines that the second target position in the first target fixed frame period is the starting position of the second fixed frame period corresponding to the letter b in FIG. 7a, and the first target fixed frame period The included second target frame period is the second fixed frame period corresponding to the letter b in FIG. 7a. That is to say, the channel occupancy indication information determined by the network device is used to indicate that the initial position where the terminal equipment periodically initiates channel occupation is the initial position of the second fixed frame period corresponding to the letter b in FIG. 7a, and the fixed frame occupied by the terminal equipment The period is the second fixed frame period corresponding to the letter b in Fig. 7a.

In another implementation manner, 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.

For example, as shown in Fig. 7c, 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 with a duration of 10ms, as shown in Fig. The fixed frame period corresponding to the number 1 and the number 2 in 7c, and then each first fixed frame period is divided into five second fixed frame periods with a duration of 2ms, which are the fixed frame periods corresponding to the letter an in Figure 7c, respectively, The first bitmap determined by the network device is shown in Figure 7c. If the index value in the first bitmap is 1, indicating the corresponding fixed frame period as an example, the first target position is the number 2 in Figure 7b. The corresponding starting position of the first fixed frame period, the first target fixed frame period is the first fixed frame period corresponding to the number 2 in FIG. 7b.

In another implementation manner, 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, the second fixed frame frame period is T _UEx , and the length of the second bitmap is N2=T/T _UEx , that is, the second bit The figure includes N2 bits.

For example, the preset period, the first fixed frame period, and the second fixed frame period determined by the network device are shown in Figure 7b, and the second bitmap determined by the network device is shown in Figure 7d. If the second bitmap is used When the index value of is 1, indicating the corresponding fixed frame period as an example, the network device determines that the second target position in the first target fixed frame period is the start position of the second fixed frame period corresponding to the letter f in Figure 7b, The second target frame period included in the first target fixed frame period is the second fixed frame period corresponding to the letters f, h and m in FIG. 7b. That is to say, the channel occupation indication information determined by the network device is used to indicate that the second target position where the terminal equipment periodically initiates channel occupation is the start position of the second fixed frame period corresponding to f in FIG. The two target fixed frame periods are the second fixed frame periods corresponding to letters f, h and m in FIG. 7b.

In the embodiment of the present application, the network device divides the preset period into multiple first fixed frame periods, and divides each first fixed frame period into multiple second fixed frame periods. Therefore, the network equipment determines the channel occupation indication information It includes: a first target position and a first target fixed frame period in the channel occupancy indication information, and determining a second target position in the first target fixed frame period and a second target frame period included in the first target fixed frame period. By respectively indicating the first position and the first target fixed frame period, and the second position and the second target fixed frame period, the starting position of the terminal equipment to periodically initiate channel occupation and the fixed frame period of the terminal equipment channel occupation are indicated. , so that when the terminal device initiates temporary data, it can also determine the starting position of the channel occupation and the fixed frame period of the channel occupation through the channel occupation indication information, and then perform the channel occupation and send the temporary data.

In the channel occupancy indication method 10 and the channel occupancy indication method 20, the channel occupancy indication information is also used to instruct the terminal equipment to periodically initiate the starting position of the next channel occupation and the fixed frame period occupied by the terminal equipment.

Wherein, the channel occupation indication information is carried in 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 Indication (D-SFI), and the SFI information carried on DCI format 2-0 may indicate one or more time slots on one or more carriers The format of the slot format combination set is called a slot format combination set, and the position of the slot format combination set in the DCI is configured through high-layer signaling.

The channel occupation indication information is carried in DCI format 2-0, and a bit of indication is added to DCI format 2-0. This bit is used to indicate that after the current fixed frame period ends, the terminal device periodically initiates the next channel occupation. The starting position and the fixed frame period occupied by the terminal equipment 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 terminal equipment periodically initiates a downlink. The starting position occupied by a channel and the fixed frame period occupied by the terminal equipment are not the fixed frame period indicated by the channel occupancy indication information in the next fixed frame period.

The terminal device initiates channel occupation depending on the uplink configuration of the terminal device. That is to say, at the beginning of the fixed frame period occupied by the terminal equipment, if the terminal equipment has an uplink configuration, it indicates that the terminal equipment has the ability to initiate channel occupation, and only then can the terminal equipment initiate channel occupation 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 occupation capability; S12: The network device sends the uplink configuration information.

In an implementation manner, 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 initiated the channel occupation. Wherein, the DCI format of the DCI is DCI format 0-0 and DCI format 0-1, and through the index in the DCI format, it can be determined whether the terminal device or the network device initiates the channel occupation. For example, the DCI format is shown in Figure 8. When the index in DCI format 0-0 and DCI format 0-1 is 0, it indicates that the network device initiates channel occupation; when DCI format 0-0 and DCI format 0-1 When the index of is 1, it indicates that the terminal device initiates channel occupation.

In an implementation manner, the uplink configuration information includes a physical uplink shared channel for configuration grants, and a physical uplink control channel for carrying scheduling grants.

In an implementation manner, the uplink configuration information includes a semi-statically configured uplink, for example, a physical uplink shared channel for configuration authorization, a physical uplink control channel for semi-static signaling configuration, a sounding reference signal for semi-static signaling configuration, a semi-static signaling configuration Random access resource locations configured by static signaling, etc.

Referring to FIG. 9, FIG. 9 is a schematic structural diagram of a channel occupancy indication apparatus provided by an embodiment of the present invention. The channel occupancy indication apparatus is used in a network device, and the channel occupancy indication apparatus 90 may include:

a processing unit 901, configured to determine channel occupancy indication information, where the channel occupancy indication information is used to indicate a starting position where a terminal device periodically initiates channel occupation and a fixed frame period occupied by the terminal device;

The communication unit 902 is configured to send the channel occupation indication information to the terminal device.

In an implementation manner, the starting position at which the terminal device periodically initiates channel occupation is determined according to offset information; the fixed frame period occupied by the terminal device is determined according to duration information.

In an implementation manner, the offset information includes first offset information, the duration information includes first duration information, and a specific implementation manner of the processing unit 901 determining the channel occupancy indication information is as follows: the processing unit 901 determines the The first target position and the first target fixed frame period in the channel occupancy indication information, the first target position is determined according to the first offset information, and the first target fixed frame period is determined according to the first target fixed frame period. A long time information is confirmed.

In an implementation manner, the offset information further includes second offset information, the duration information further includes second duration information, and the processing unit 901 is further configured to: determine the first target fixed frame period in the first target fixed frame period. Two target positions and a second target fixed frame period included in the first target fixed frame period, 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 target fixed frame period The second duration information is determined.

In an implementation manner, the bitmap includes a first bitmap, and a specific implementation manner of the processing unit 901 determining the channel occupancy indication information is as follows: the processing unit 901 determines the first target in the channel occupancy indication information position and a first target fixed frame period, the first target position and the first target fixed frame period are determined according to the first bitmap.

In an implementation manner, the bitmap further includes a second bitmap, and the processing unit 901 is further configured to determine a second target position in the first target fixed frame period and a second target position in the first target fixed frame period The included second target fixed frame period, the second target position and the second target fixed frame period are determined according to the second bitmap.

In an implementation manner, before the processing unit 901 determines the channel occupation indication information, the processing unit 901 may further perform the following steps: the processing unit 901 determines uplink configuration information of the terminal device, where the uplink configuration information is used to indicate that the terminal device has the The capability of channel occupation; the communication unit 902 sends the uplink configuration information.

In an implementation manner, 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 , the DCI is used to indicate the terminal device/network device that initiates channel occupation.

In an implementation manner, the channel occupancy indication information is further used to instruct the terminal device to periodically initiate the starting position of the next channel occupancy and the fixed frame period occupied by the terminal device.

In the embodiment of the present application, the channel occupation indication information is determined and sent, and the channel occupation indication information is used to indicate the starting position of the terminal equipment to periodically initiate channel occupation and the fixed frame period of the terminal equipment occupation. Therefore, when there is temporary data to be sent, the terminal device can determine the starting position for periodically initiating channel occupation and the fixed frame period occupied by the terminal device according to the channel occupation indication information, thereby facilitating the terminal device to send the temporary data.

Referring to FIG. 10, FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present application. The network device 100 described in the embodiments of this application includes: a processor 1001 and a memory 1002, where the processor 1001 and the memory 1002 are connected through one or more communication buses.

The above-mentioned processor 1001 can be a central processing unit (Central Processing Unit, CPU), and the processor can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC) ), off-the-shelf programmable gate array (Field-Programmable Gate Array, 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 the processor may be any conventional processor or the like. The processor 1001 is configured to support the user equipment to perform the corresponding functions of the network equipment in the methods described in FIG. 4 and FIG. 6 .

The above-mentioned memory 1002 may include read-only memory and random access memory, and provides computer programs and data to the processor 1001 . A portion of memory 1002 may also include non-volatile random access memory. Wherein, when the processor 1001 calls the computer program, it is used to execute:

Send the channel occupation indication information to the terminal device.

In an implementation manner, the offset information includes first offset information, the duration information includes first duration information, and a specific implementation manner of the processor 1001 determining the channel occupancy indication information is as follows: the processor 1001 Determine a first target position and a first target fixed frame period in the channel occupancy indication information, the first target position is determined according to the first offset information, and the first target fixed frame period is determined according to the first target fixed frame period. The first duration information is determined.

In an implementation manner, the offset information further includes second offset information, the duration information further includes second duration information, and the processor 1001 further performs the following steps: the processor 1001 determines the first A second target position in a 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 according to the second offset information, the The second target fixed frame period is determined according to the second duration information.

In an implementation manner, the bitmap includes a first bitmap, and the processor 1001 specifically performs the following steps when determining the channel occupancy indication information: the processor 1001 determines the first bitmap in the channel occupancy indication information. a target position and a first target fixed frame period, the first target position and the first target fixed frame period are determined according to the first bitmap.

In an implementation manner, the bitmap further includes a second bitmap, and the processor 1001 is further configured to perform the following steps: the processor 1001 determines a second target position in the first target fixed frame period and the second target fixed frame period included in the first target fixed frame period, the second target position and the second target fixed frame period are determined according to the second bitmap.

In an implementation manner, before the processor 1001 determines the channel occupation indication information, the following steps may be further performed: the processor 1001 determines uplink configuration information of the terminal device, and the uplink configuration information is used to indicate the The terminal device has the capability of initiating channel occupation; the processor 1001 sends the uplink configuration information.

In this embodiment of the present application, the processor 1001 determines and sends channel occupation indication information, where the channel occupation indication information is used to indicate the starting position of the terminal equipment to periodically initiate channel occupation and the fixed frame period of the terminal equipment occupation. Therefore, when there is temporary data to be sent, the terminal device can determine the starting position for periodically initiating channel occupation and the fixed frame period occupied by the terminal device according to the channel occupation indication information, thereby facilitating the terminal device to send the temporary data.

This embodiment of the present application further provides a computer-readable storage medium, where the readable storage medium stores a computer program, and when the computer program is executed by a processor, the computer program can be used to implement the programs corresponding to FIG. 4 and FIG. 6 in the embodiment of the present application. The channel occupancy indication method described in the embodiment will not be repeated here.

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 a 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 equipped on the device, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) Card, Flash Card, etc. Further, 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 for storing the computer program and other programs and data required by the terminal device. The computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a readable storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. The storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM) or the like.

The above disclosures are only the preferred embodiments of the present application, and of course, the scope of the rights of the present application cannot be limited by this. Therefore, equivalent changes made according to the claims of the present application are still within the scope of the present application.

Claims

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 instruct the terminal device to periodically initiate a starting position of channel occupation and a fixed frame period occupied by the terminal device;

The network device sends the channel occupation indication information to the terminal device.
The method of claim 1, wherein:

The starting position where the terminal equipment periodically initiates channel occupation is determined according to the offset information; the fixed frame period occupied by the terminal equipment is determined according to the duration information.
The method according to claim 2, wherein the offset information includes first offset information, the duration information includes first duration information, and the network device determines the channel occupation indication information, comprising:

The network device determines a first target position and a first target fixed frame period in the channel occupancy indication information, the first target position is determined according to the first offset information, and the first target fixed frame The period is determined according to the first duration information.
The method according to claim 2 or 3, wherein 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, and the second target position is based on the second target fixed frame period. The offset information is determined, and the second target fixed frame period is determined according to the second duration information.
The method of claim 1, wherein:

The starting position where the terminal device periodically initiates channel occupation and the fixed frame period occupied by the terminal device are determined according to the bitmap.
The method according to claim 5, wherein the bitmap includes a first bitmap, and the network device determines the channel occupancy indication information, comprising:

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 according to the first bitmap of.
The method according to claim 5 or 6, wherein the bitmap further comprises a second bitmap, and the method further comprises:

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 and the second target The fixed frame period is determined according to the second bitmap.
The method according to claim 1, wherein before the network device determines the channel occupancy indication information, the method further comprises:

determining, by the network device, 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.
The method of claim 8, wherein:

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 a terminal device/network device that initiates channel occupation.
The method of claim 1, wherein:

The channel occupation indication information is further used to indicate the starting position of the terminal equipment to periodically initiate the next channel occupation and the fixed frame period of the terminal equipment occupation.
A channel occupancy indication device, characterized in that the channel occupancy indication device comprises:

a processing unit, configured to determine channel occupancy indication information, where the channel occupancy indication information is used to instruct the terminal equipment to periodically initiate the starting position of channel occupation and the fixed frame period occupied by the terminal equipment;

A communication unit, configured to send the channel occupation indication information to the terminal device.
A network device, characterized in that it includes 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 includes program instructions, and the processor is configured to use The method according to any one of claims 1 to 10 is executed by invoking the program instructions.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and the computer program includes program instructions, and the program instructions, when executed by a processor, cause the processor to execute as claimed The method of any one of items 1 to 10 is claimed.