Method, apparatus, device and medium for determining available time length for data communication

Abstract

The present disclosure provides a method, an apparatus, a device and a storage medium for determining an available time length for data communication. The method includes: receiving a first message, the first message includes channel occupancy time (COT) information of an unlicensed frequency band, the COT information includes COT remaining time information and / or applied beam indication information; and determining an available time length for data reception or transmission based on the COT remaining time information. In the present disclosure, a transmitting device can determine the COT remaining time information and / or applied beam indication information by an LBT process and indicate the COT remaining time information and / or applied beam indication information to a receiving device by a first message, so that the receiving device can accurately determine the maximum indicated COT remaining time length and / or communication beam, solving the problem that the conventional method for determining the available time length for data communication cannot be applied to a high frequency band, and can perform high frequency communication between communication devices.

Description

[Technical field]

[0001] The present disclosure relates to the field of communication technologies, and more particularly to a method, an apparatus, a device and a medium for determining an available time length for data communication. [Background technology]

[0002] With the development of communication technology, network devices in a communication system can simultaneously use licensed and unlicensed frequency bands to provide communication services to terminal devices. In the R16 version of New Radio (NR), the communication method of the unlicensed frequency band follows the LBT (Listen Before Talk) rule, that is, a transmitting device (e.g., a network device / terminal device) needs to monitor the channel of the unlicensed frequency band before transmitting data, and if the channel is displayed as idle, data transmission can be performed on the channel of the unlicensed frequency band, and if the channel is displayed as busy, data transmission cannot be performed on the channel of the unlicensed frequency band.

[0003] In 5G NR technology, network devices and terminal devices can communicate in multiple frequency bands, including high-frequency and low-frequency communications.

[0004] However, because the frequency ranges of high-frequency communication and low-frequency communication are different, the method of indicating the remaining length of low-frequency channel occupancy time (COT) in the prior art cannot fully meet the needs of indicating the remaining length of high-frequency COT, so how to indicate the remaining length of COT in high-frequency communication is a problem to be solved.

[0005] The above information disclosed in the Background section is merely intended to enhance understanding of the background of the present disclosure, and thus may contain information that is not part of the prior art known to those skilled in the art. Summary of the Invention [Means for solving the problem]

[0006] The present disclosure provides a method, an apparatus, a device and a storage medium for determining an available time length for data communication to solve problems existing in the prior art.

[0007] In a first aspect, the present disclosure provides a method for determining an available time period for data communication, adapted for a receiving device, the method comprising, in some embodiments, Receiving a first message, the first message including channel occupation time (COT) information of the unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; and determining an available time length for data reception or transmission based on the COT remaining time length information.

[0008] In some embodiments, the COT remaining time information is less than or equal to a maximum indicator value, the maximum indicator value being an indicator symbol value. Determining an available time length for data reception or transmission based on the COT remaining time length information includes: Determining a first COT remaining time length corresponding to a maximum indicated value based on a conversion relationship between the indicated value and the COT remaining time length; Determining that the amount of time available for data reception or transmission is less than or equal to a first COT remaining amount of time.

[0009] In some embodiments, the maximum indicator value comprises a maximum symbol value. Here, if the maximum SCS is 960KHz, the maximum value of the maximum symbol number is 4480, If the maximum SCS is 480KHz, the maximum value of the maximum symbol number is 2240, If the maximum SCS is 120KHz, then the maximum value of the maximum symbol number is 560.

[0010] In some embodiments, the COT remaining time information includes a first indicator value, and the first indicator value includes one of an indicator symbol value, a symbol value included in a half timeslot, or a symbol value included in a timeslot. Determining an available time length for data reception or transmission based on the COT remaining time length information includes: determining a second indicator value based on the first indicator value and the expansion factor; Determining a second COT remaining time length corresponding to the second indication value based on the second indication value and a conversion relationship between the indication value and the COT remaining time length; Determining that the available time length for data reception or transmission is less than or equal to a second COT remaining time length.

[0011] In some embodiments, determining the second indicator value based on the first indicator value and the expansion factor includes: Determining that the product of the first indicator value and the expansion factor is a second indicator value.

[0012] In some embodiments, when the first indication value is an indication symbol value, the extension factor is determined by the maximum COT length, the subcarrier spacing SCS, the reference SCS index, and the reference maximum channel occupancy time.

[0013] In some embodiments, the expansion factor is calculated according to the following formula:

number

number

number

number

number

number

[0014] In some embodiments, the expansion factor is determined based on pre-defined rules.

[0015] The pre-defined rules are If the first indication value is a number of symbols contained in the half-time slot, the expansion factor is a first preset value; or When the first indication value is a symbol number included in the time slot, the expansion factor is a second preset value; Here, the second preset value is twice the second preset value.

[0016] In some embodiments, further comprising: It includes determining an application beam corresponding to the COT remaining time length information based on the application beam instruction information.

[0017] In some embodiments, the applied beam instruction information includes beam information and a number of beams. The beam information and the number of beams are set by the receiving device, and the method further comprises: determining that the COT remaining time length information is not applied to the target beam if the indicator value corresponding to the target beam is a first value; determining that the COT remaining time information is applied to the target beam if the indicator value corresponding to the target beam is a second value.

[0018] In some embodiments, further comprising: Receiving PUSCH scheduling information sent by a transmitting device; Based on the PUSCH scheduling information, determining one or more of a transmission time of the PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH.

[0019] In some embodiments, the PUSCH scheduling information includes grant information that is dynamically scheduled by the transmitting device and / or configured to be granted by higher layer signaling.

[0020] In some embodiments, converting the first LBT type to the second LBT type further comprises: converting the first LBT type to a second LBT type if a first condition is satisfied; The first condition is: The transmission time of the PUSCH scheduling information is within a range of the available time length corresponding to the COT remaining time length information; The beam information in the PUSCH scheduling information includes COT beam information; and The PUSCH scheduling information includes COT-related information.

[0021] In some embodiments, the beam information in the PUSCH scheduling information includes COT beam information, or the PUSCH scheduling information includes COT-related information. Established by higher layer signaling; As directed by the DCI, and The receiving device determines whether the beam information in the PUSCH scheduling information includes COT beam information by default, or whether the PUSCH scheduling information includes COT-related information by default.

[0022] In some embodiments, the second LBT type includes LBT type-2 or LBT type-3.

[0023] In some embodiments, further comprising: If the reception time of the COT information satisfies a second condition, converting the first LBT type to a second LBT type, where the second condition includes: the reception time of the COT information is not earlier than the reception time of the PUSCH scheduling information, or the reception time of the PUSCH scheduling information is not later than the reception time of the COT information.

[0024] In a second aspect, the present disclosure provides a method for determining an available time length for data communication, applied to a transmitting device, the method comprising: determining channel occupation time (COT) information for the unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; Sending a first message including the COT information to a receiving device.

[0025] In some embodiments, the applied beam instruction information includes beam information and a number of beams. The beam information and the number of beams are set by the transmitting device. The method further includes: determining that the COT remaining time length information is not applied to the target beam if the indicator value corresponding to the target beam is a first value; determining that the COT remaining time information is applied to the target beam if the indicator value corresponding to the target beam is a second value.

[0026] In some embodiments, the COT remaining time information is less than or equal to a maximum indicator value, the maximum indicator value being an indicator symbol value; The maximum instruction value is determined based on the maximum COT length and the subcarrier spacing SCS.

[0027] In some embodiments, the maximum indication value is further determined by a reference maximum indication range, a reference SCS index, and a reference maximum channel occupancy time.

[0028] In some embodiments, the maximum indicator value is calculated according to the following formula:

number

number

number

number

number

number

number

[0029] In some embodiments, the maximum indicator value is further determined by the number of time slots contained in each subframe and the number of symbols contained in one time slot.

[0030] In some embodiments, the maximum indicator value is calculated according to the following formula:

number

number

number

number

number

number

[0031] In some embodiments, the COT remaining time information includes a first numerical indicator. The first indicator value includes either an indicator symbol value, a symbol value contained in a half time slot, or a symbol value contained in a time slot.

[0032] In some embodiments, the maximum indicator value comprises a maximum symbol value. Here, if the maximum SCS is 960KHz, the maximum value of the maximum symbol number is 4480, If the maximum SCS is 480KHz, the maximum value of the maximum symbol number is 2240, If the maximum SCS is 120KHz, then the maximum value of the maximum symbol number is 560.

[0033] In some embodiments, further comprising: The method includes transmitting PUSCH scheduling information to a receiving device, where the PUSCH scheduling information is used to instruct the receiving device to determine one or more of a transmission time of the PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH based on the PUSCH scheduling information.

[0034] In some embodiments, the PUSCH scheduling information includes grant information that is dynamically scheduled by the transmitting device and / or configured to be granted by higher layer signaling.

[0035] In a third aspect, the present disclosure provides a receiving device, the receiving device including a memory, a transceiver and a processor; The memory is used to store a computer program, and the transceiver is used to transmit and receive data under the control of the processor, and the processor reads the computer program in the memory; Receiving a first message, the first message including channel occupation time (COT) information of the unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; and determining an available time length for data reception or transmission based on the COT remaining time length information.

[0036] In a fourth aspect, the present disclosure provides a sending device, the sending device including a memory, a transceiver, and a processor. The memory is used to store a computer program, and the transceiver is used to transmit and receive data under the control of the processor, and the processor reads the computer program in the memory; determining channel occupation time (COT) information for the unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; The method includes: sending a first message including the COT information to a receiving device; and

[0037] In a fifth aspect, the present disclosure provides an apparatus for determining an available time length for data communication, adapted for a receiving device, the apparatus comprising: A receiving module for receiving a first message, the first message including channel occupancy time (COT) information of an unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; and a determination module used for determining an available time length for data reception or transmission based on the COT remaining time length information.

[0038] In a sixth aspect, the present disclosure provides an apparatus for determining an available time length for data communication, adapted for a transmitting device, the apparatus comprising: A determination module for determining channel occupation time (COT) information of an unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; and a sending module adapted to send a first message including the COT information to a receiving device.

[0039] In a seventh aspect, the present disclosure provides a computer-readable storage medium having stored thereon computer-executable instructions which, when executed by a processor, effectuate the method of determining an available time length for data communication as described above.

[0040] The present disclosure provides a method, an apparatus, a device and a storage medium for determining an available time length for data communication. The method includes receiving a first message, the first message including channel occupancy time (COT) information of an unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam indication information, and determining an available time length for data reception or transmission based on the COT remaining time length information. In the present disclosure, a transmitting device can determine the COT remaining time length information and / or applied beam indication information by an LBT process and indicate the COT remaining time length information and / or applied beam indication information to a receiving device by a first message, so that the receiving device can accurately determine the maximum indicated COT remaining time length and / or communication beam, thereby solving the problem that the conventional method for determining the available time length for data communication cannot be applied to a high frequency band, and high frequency communication can be performed between communication devices. [Brief description of the drawings]

[0041] The drawings herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure, and together with the specification serve to explain the principles of the present disclosure. [Figure 1] FIG. 2 is a schematic diagram of a method for determining an available time length for data communication provided by an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a schematic diagram of a method for determining an available time length for data communication provided by an embodiment of the present disclosure. [Diagram 3] FIG. 2 is a schematic diagram of an apparatus for determining an available time length for data communication provided by an embodiment of the present disclosure. [Figure 4] FIG. 2 is a schematic diagram of an apparatus for determining an available time length for data communication provided by an embodiment of the present disclosure. [Diagram 5] FIG. 2 is a schematic diagram of a configuration of a receiving device provided by an embodiment of the present disclosure. [Figure 6] FIG. 2 is a schematic diagram of a configuration of a transmitting device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0042] The above attached drawings show clear examples of the present disclosure and will be described in detail below. These drawings and written description are not intended to limit the scope of the ideas of the present disclosure in any manner, but are intended to explain the concept of the present disclosure to those skilled in the art by referring to specific embodiments.

[0043] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only some embodiments of the present disclosure, and are not all embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0044] The terms used in the embodiments of the present disclosure are merely for the purpose of describing particular embodiments and are not intended to limit the present disclosure. The singular forms "a" and "the" used in the embodiments of the present disclosure are also intended to include multiple forms unless the context clearly indicates otherwise.

[0045] In the present disclosure, the term "and / or" describing an associated relationship of related objects means that a triple relationship can exist, for example, A and / or B can represent three cases: A exists alone, A and B exist together, and B exists alone. Also, the character " / " generally indicates that the related objects before and after it are in an "or" relationship.

[0046] Depending on the context, the words "when" and "and" as used herein may be interpreted as "upon" or "when" or "responsive to determining" or "responsive to detecting." Similarly, depending on the context, the words "upon determining" or "upon detecting (a stated condition or event)" may be interpreted as "when determining" or "responsive to determining" or "upon detecting (a stated condition or event)" or "responsive to detecting (a stated condition or event)."

[0047] It is noted that the use of "comprises," "includes," or any other variation thereof is intended to cover a non-exclusive inclusion, whereby a product or system containing a set of elements includes not only those elements, but also other elements not specifically listed or inherent in such product or system. Absent more limitations, an element qualified by the phrase "comprises a" does not exclude the situation in which other identical elements are present in a product or system containing the element.

[0048] With the development of communication technology, network devices in a communication system can simultaneously use licensed and unlicensed frequency bands to provide communication services to terminal devices. In the R16 version of New Radio (NR), the communication method of the unlicensed frequency band follows the LBT (Listen Before Talk) rule, that is, a transmitting device (e.g., a network device / terminal device) needs to monitor the channel of the unlicensed frequency band before transmitting data, and if the channel is displayed as idle, data transmission can be performed on the channel of the unlicensed frequency band, and if the channel is displayed as busy, data transmission cannot be performed on the channel of the unlicensed frequency band.

[0049] Each time the transmitting device performs the LBT process, it obtains the channel occupancy time (COT) for data transmission and instructs the corresponding receiving device via a communication message to indicate the remaining COT length, which is the remaining channel occupancy time for the receiving device to transmit data.

[0050] In the 5G NR technology, the network device and the terminal device can communicate in a number of frequency bands, such as Frequency Range 1 (FR 1), Frequency Range 2_1 (FR 2_1) and Frequency Range 2_2 (FR 2_2), where FR 1 is specifically 410 MHz to 7.125 GHz, FR 2_1 is specifically 24.25 GHz to 52.6 GHz, and FR 2_2 is specifically 52.6 GHz to 71 GHz. Among the above-mentioned multiple frequency ranges, the frequency range greater than 52.6 GHz is called high frequency, FR 2_2 is also called high frequency band, and the frequency range less than 52.6 GHz is called low frequency, and FR 1 and FR 2_1 are also called low frequency band. Here, after the transmitting device passes the LBT, the COT of the low frequency communication is at most 10 ms, and the COT of the high frequency communication is at most 5 ms.

[0051] A higher communication frequency can bring about a larger bandwidth effect, but the higher frequency has a larger Doppler shift and at the same time generates larger phase noise. In order to solve the effects of Doppler and phase noise caused by high frequency, the Sub-Carrier Spacing (SCS) adopted for high frequency communication is higher than that for low frequency communication.

[0052] For example, the SCS values ​​for low frequency communication are, for example, 15KHz, 30KHz, 60KHz, 120KHz, etc., and the SCS values ​​for high frequency communication are, for example, 240KHz, 480KHz, 960KHz, etc. Table 1 below shows specific values ​​of frame structure parameters.

[0053] [Table 1]

[0054] Referring to Table 1 above, the table shows the number of time slots (

number

number

number

[0055] For example, if μ=3, each subframe includes 8 time slots, and each time slot includes 14 symbols, that is, each subframe includes 8*14=112 symbols.

[0056] Also, for example, when μ=5 is satisfied, each subframe includes 32 time slots, each time slot includes 14 symbols, that is, each subframe includes 32*14=448 symbols.

[0057] Also, for example, when μ=6, each subframe includes 64 time slots, and each time slot includes 14 symbols, that is, each subframe includes 64*14=896 symbols.

[0058] For operation in the R16 unlicensed frequency bands, the method for indicating the COT remainder for low frequency communications is as follows:

[0059] 1: The higher layer (e.g., MAC layer, RRC layer, etc.) sets the remaining indication number of multiple COTs (maximum 64), and the indication granularity is at the symbol level (indicating that the remaining indication value of COT co-DurationList is set to a maximum of 1120 symbols), indicating that the remaining COT time length is from 0 to 10 ms. The method of indication in the standard is CO-Duration-r16::=INTEGER(0..1120), where INTEGER indicates an integer, and 1120 indicates the maximum value indicated by CO-Duration, and the unit is the number of symbols.

[0060] 2: The configuration index is indicated by Downlink Control Information (DCI), and the associated index may be any of the 64 values.

[0061] However, because the frequency ranges of high frequency communication and low frequency communication are different, the prior art cannot fully meet the needs of high frequency COT remaining indication, that is, the method of COT remaining indication in low frequency communication cannot be applied to high frequency communication. The specific reasons are as follows:

[0062] Problem 1: The maximum SCS introduced in high frequency communication is 960KHz, and the maximum number of symbols specified based on the relevant protocol in current low frequency communication is 1120. Based on the conversion relationship between the number of symbols and the remaining indication of high frequency COT, i.e., COT remaining time length = number of symbols / number of symbols contained in one time slot / number of time slots contained in each subframe with a time length of 1ms, for 960KHz, the maximum instructable COT remaining time length is (1120 / 14) / 64 = 1.25ms, that is, the maximum instructable COT remaining time length is 1.25ms, and 1.25ms < 5ms, so the conventional method of determining the available time length of data communication at low frequency cannot meet the need that the maximum indicated COT remaining time length must be 5ms in high frequency communication.

[0063] Problem 2: Introduction of directional LBT: In high-frequency communication, one channel occupancy may include multiple different time-division multiplexing (TDM) / space-division multiplexing beams, and based on the existing method of determining the available time length for data communication at low frequencies, the receiving device cannot know which beam the COT remaining time length specifically applies to, and therefore cannot know which beam to use for data communication.

[0064] The method for determining the available time length of data communication provided in the present disclosure aims to solve the above technical problems of the prior art. The main solutions of the present invention are as follows:

[0065] For problem 1, the following two candidate methods can be adopted:

[0066] (1) By expanding the indication range, for example by expanding the indicated maximum number of symbols from 1120 to 4480, the indication requirement for the maximum indicated COT remaining time length corresponding to the maximum SCS (for example, SCS=960 KHz) is satisfied.

[0067] (2) By increasing the instruction granularity, for example, a communication device pre-agreed by a communication specification, the instruction value includes any one of an instruction symbol value, a symbol value included in a half-time slot, or a symbol value included in a time slot, and after the receiving device receives the instruction value transmitted from the transmitting device, it first processes the instruction data to obtain an application value larger than the instruction value, and then determines the instruction COT remaining time length based on the application value, thereby satisfying the instruction requirement of the maximum instruction COT remaining time length corresponding to the maximum SCS.

[0068] For problem 2, the transmitting device can increase a COT remaining indication corresponding to each of the multiple beams, i.e., the applied beam information corresponding to the COT remaining indication, so that the receiving device can know which beam the COT remaining time length is specifically applied to, and can know which beam to use specifically to perform data communication.

[0069] It can be understood that the processing steps of the method for determining the available time length for data communication in the present disclosure can be implemented by a terminal device or a network device.

[0070] The network device may be a base station. Specifically, it may be a base transceiver station (BTS) and / or a base station controller in a global system of mobile communication (GSM) or code division multiple access (CDMA), a base station (NodeB, NB) and / or a radio network controller (RNC) in a wideband code division multiple access (WCDMA), an evolutional Node B (eNB or eNodeB), a relay station or an access point in a long term evolution (LTE), or a base station (gNB) in a future 5G network. The embodiments of the present disclosure are not limited thereto.

[0071] The terminal device may be a wireless terminal or a wired terminal. A wireless terminal may be a device that provides voice and / or other service data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. A wireless terminal may communicate with one or more core network devices via a Radio Access Network (RAN), and a wireless terminal may be a mobile terminal, such as a mobile phone (also called a "cellular" phone) and a computer with a mobile terminal, such as a portable, pocket, handheld, computer-embedded, or vehicle-mounted mobile device, which exchanges words and / or data with the radio access network. As another example, a wireless terminal may be a device such as a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), etc. The wireless terminal may also be referred to as, but is not limited to, a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, an access terminal, a user terminal, a user agent, a user device or user equipment. Optionally, the terminal device may be a device such as a smart watch, a tablet computer, etc.

[0072] The following provides a detailed description of the technical solution of the present disclosure and how the technical solution of the present disclosure solves the above problems using specific examples. Some specific examples below can be combined with each other, and the same or similar concepts or processes may be omitted in some examples. Hereinafter, the embodiments of the present disclosure will be described with reference to the drawings.

[0073] In some embodiments, a method for determining an available time length for data communication is provided, which is applied to a sending device, which may in particular be a network device or a terminal device, and correspondingly, the receiving device is a terminal device or a network device, the sending device being different from the receiving device.

[0074] 1 is a schematic diagram of a method for determining an available time length of data communication provided by an embodiment of the present disclosure. As shown in FIG. 1, the method mainly includes the following steps:

[0075] S110, determining channel occupation time (COT) information of the unlicensed frequency band, where the COT information includes COT remaining time length information and / or applied beam indication information.

[0076] Specifically, the transmitting device may obtain the COT information of the unlicensed frequency band through an LBT process, and the obtaining process may be realized by an existing LBT method, such as an LBT type 1 method or an LBT type 2 method.

[0077] The COT information acquired by the transmitting device includes COT remaining time length information and / or applied beam indication information, where the COT remaining time length information is used to indicate the maximum indicated COT remaining time length in the high frequency communication process, and the applied beam information is used to indicate the applied beam corresponding to the maximum indicated COT remaining time length.

[0078] Here, the COT remaining time length information can indicate a larger COT remaining time length by instructing to expand the indication range or the indication granularity, thereby solving problem 1 existing in the prior art.

[0079] In addition, the transmitting device can increase the COT remaining indication corresponding to each of the multiple beams, i.e., the applied beam information corresponding to the COT remaining indication, so that the receiving device can know which beam the COT remaining time length is specifically applied to and can know which beam to use for data communication, thereby solving the problem 2 in the prior art.

[0080] Optionally, for a multi-beam radio frequency communication scene, the transmitting device can add a COT remaining time length indication for one or more beams, the indication information being indicated by higher layer signaling, and each indicated beam can be indicated using one bit to indicate whether the COT remaining indication is applicable to the beam.

[0081] For example, 0 indicates that it is not applicable to the beam (indicating that the COT remaining for the associated beam is 0, or that the LBT for the directional beam has failed, i.e., the COT has not been obtained), and 1 indicates that it is applicable to the beam (i.e., that the COT remaining value and the indication value for the associated beam are the same).

[0082] S120, sending a first message including the COT information to a receiving device. After obtaining the COT information, the transmitting device transmits the COT information to the receiving device via a first message, where when the transmitting device is a network device, the first message may be, for example, a DCI message, so that the receiving device can determine a maximum indicated COT remaining time length and / or a communication beam based on the COT information in the first message.

[0083] This embodiment provides a method for determining the available time length for data communication, which is applied to a high frequency band, in which a transmitting device can obtain COT remaining time length information and / or applied beam indication information through an LBT process, and indicate it to a receiving device through a first message, so that the receiving device can accurately determine the maximum indicated COT remaining time length and / or communication beam, thereby solving the problem that the conventional method for determining the available time length for data communication cannot be applied to a high frequency band, and high frequency communication can be performed between communication devices.

[0084] In some embodiments, the COT remaining time information is less than or equal to a maximum indication value, the maximum indication value being an indication symbol value, and the maximum indication value being related to a maximum COT length, a subcarrier spacing SCS, where the maximum COT length is a maximum indication COT remaining time that needs to be reached in radio frequency communication, i.e., the maximum COT length is 5 ms.

[0085] Optionally, if the maximum SCS is 960KH, the maximum value of the maximum symbol numeric value is 4480; if the maximum SCS is 480KHz, the maximum value of the maximum code value is 2240; and if the maximum SCS is 120KHz, the maximum value of the maximum code value is 560.

[0086] Specifically, based on the conversion relationship between the number of symbols and the remaining indication of high frequency COT, that is, COT remaining time length=number of symbols / number of symbols included in one time slot / number of time slots included in each subframe with a time length of 1 ms, when the maximum number of symbols indicated by the transmitting device is 4480, for 960KHz, the maximum instructable COT remaining time length is (4480 / 14) / 64=5ms, that is, the maximum instructable COT remaining time length is 5ms, which can meet the need for the maximum indicated COT remaining time length to be 5ms in high frequency communication.

[0087] In some embodiments, the maximum indication value is further related to a reference maximum indication range, a reference SCS index, and a reference maximum channel occupancy time.

[0088] Specifically, the maximum indication value is calculated according to the following formula:

number

number

number

number

number

number

number

[0089] Specifically, for high frequency communication, the maximum COT length

number

number

number

number

number

number

[0090] Based on the above formula and with reference to Table 1, the following results are obtained: When μ=5, the calculation result of the above formula is Max_value=2240. When μ=6, the calculation result of the above formula is Max_value=4480. When μ=3, the calculation result of the above formula is Max_value=560.

[0091] Therefore, based on the above calculation formula, the transmitting device can determine the maximum indication value to indicate a larger COT remaining time length, that is, by expanding the indication range, problem 1 existing in the prior art can be solved.

[0092] In practical application, the transmitting device may use the above formula for calculation, or may directly use the above calculation result, and may understand that, for example, CO-Duration::=INTEGER(0..4480), or, for example, CO-Duration::=INTEGER(0..2240), or, for example, CO-Duration::=INTEGER(0..560).

[0093] In some embodiments, the maximum indicator value also relates to the number of time slots contained in each subframe and the number of symbols contained in a time slot.

[0094] Specifically, the maximum indication value is calculated according to the following formula:

number

[0095] Where:

number

number

number

number

number

[0096] Specifically, for high frequency communication, the maximum COT length

number

number

number

number

number

[0097] Based on the above formula and with reference to Table 1, the following results are obtained: When μ=5, the calculation result of the above formula is Max_value=2240. When μ=6, the calculation result of the above formula is Max_value=4480. When μ=3, the calculation result of the above formula is Max_value=560.

[0098] Therefore, based on the above calculation formula, the transmitting device can determine the maximum indication value to indicate a larger COT remaining time length, that is, by expanding the indication range, problem 1 existing in the prior art can be solved.

[0099] In practical application, the transmitting device may use the above formula for calculation, or may directly use the above calculation result, and may understand that, for example, CO-Duration::=INTEGER(0..4480), or, for example, CO-Duration::=INTEGER(0..2240), or, for example, CO-Duration::=INTEGER(0..560).

[0100] In some embodiments, the COT remaining time information includes a first indicator value, and the first indicator value includes one of an indicator symbol value, a symbol value included in a half timeslot, or a symbol value included in a timeslot.

[0101] Specifically, the transmitting device can indicate the COT time length by sending the indication symbol value, the symbol value included in the half time slot, or the symbol value included in the time slot, and the receiving device can process the first indication value according to the predetermined, for example, communication specification, to obtain the corresponding application value. Therefore, the COT remaining time length information can indicate a larger COT remaining time length, thereby solving the problem 1 existing in the prior art.

[0102] In some embodiments, further comprising: The method includes transmitting PUSCH scheduling information to a receiving device, where the PUSCH scheduling information is used to instruct the receiving device to determine one or more of a transmission time of the PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH based on the PUSCH scheduling information.

[0103] In some embodiments, the PUSCH scheduling information includes grant information that is dynamically scheduled by the transmitting device and / or configured to be granted by higher layer signaling.

[0104] In some embodiments, a method for determining an available amount of time for data communication is provided that is applied to a receiving device.

[0105] 2 is a schematic diagram of a method for determining an available time length for data communication provided by an embodiment of the present disclosure. As shown in FIG. 2, the method mainly includes the following steps:

[0106] S210, receiving a first message sent by a transmitting device, where the first message includes channel occupation time (COT) information of an unlicensed frequency band, and the COT information includes COT remaining time length information and / or applied beam instruction information;

[0107] Optionally, the COT remaining time information is less than or equal to a maximum indicated value, i.e., the receiving device receives a value indicated by the transmitting device expanding the indicated range.

[0108] Optionally, the COT remaining time information includes a first indication value, and the first indication value includes any one of an indication symbol value, a symbol value included in a half time slot, or a symbol value included in a time slot, i.e., the receiving device receives the indication value by increasing the indication granularity of the transmitting device.

[0109] S220, determining an available time length for data reception or transmission based on the COT remaining time length information. Wherein, when the COT remaining time length information is less than or equal to a maximum indication value, determining an available time length for data reception or transmission based on the COT remaining time length information includes: S221; In S221, a first COT remaining time length corresponding to the maximum instruction value is determined based on the conversion relationship between the instruction value and the COT remaining time length, and it is determined that the available time length for data reception or transmission is equal to or less than the first COT remaining time length.

[0110] Also, when the COT remaining time information includes a first indication value, determining an available time length for data reception or transmission based on the COT remaining time information includes S222; In S222, a second indication value is determined based on the first indication value and the expansion factor, a second COT remaining time length corresponding to the second indication value is determined based on the second indication value and the conversion relationship between the indication value and the COT remaining time length, and it is determined that the available time length for data reception or transmission is less than or equal to the second COT remaining time length.

[0111] Here, the first numerical value may be understood as the numerical value received by the receiving device, the expansion factor may be understood as a multiplier that performs scaling on the first numerical value, and the second numerical value is the numerical value actually used by the receiving device.

[0112] In some embodiments, determining the second numerical indication based on the first numerical indication and the expansion factor includes determining that a product of the first numerical indication and the expansion factor is the second numerical indication. Thus, the receiving device can perform a scaling operation on the first numerical indication by using the expansion factor to obtain a second numerical indication that is greater than the first numerical indication, and the second numerical indication can indicate a COT time remaining that is greater than the first numerical indication, so that the receiving device can determine a corresponding COT time remaining based on the second numerical indication.

[0113] In some embodiments, when the first indication value is an indication symbol value, the expansion factor is related to a maximum COT length, a subcarrier spacing SCS, a reference SCS index, and a reference maximum channel occupancy time.

[0114] Optionally, the expansion factor is calculated according to the following formula:

number

number

number

number

number

number

[0115] Specifically, for high frequency communication, the maximum COT length

number

number

number

number

number

[0116] Based on the above formula and with reference to Table 1, the following results are obtained: When μ=5, the result of the above formula is scale_factor=2. When μ=6, the calculation result of the above formula is scale_factor=4. When μ=3, the calculation result of the above formula is scale_factor=1 / 2.

[0117] In practical application, the receiving device may use the above formula to perform calculation, or may directly use the above calculation result to perform scaling processing on the instruction data set in the sending device.

[0118] In some embodiments, the expansion factor is determined based on predefined rules, where the predefined rules include:

[0119] (1) If the first indication value is the symbol value contained in the half-time slot, the expansion factor is a first preset value (e.g., if the symbol contained in the half-time slot is 7, the first preset value is 7, and further, for example, if the symbol contained in the half-time slot is 6, the first preset value is 6). (2) When the first instruction value is the number of symbols included in a time slot, the expansion factor is a second preset value (for example, when the instruction unit is a time slot, if the number of symbols included in one time slot is 14, the second preset value is 14, and further, for example, when the instruction unit is a time slot, if the number of symbols included in one time slot is 12, the second preset value is 12). The second preset value is twice the second preset value.

[0120] Here, the specific value of the extension factor can be flexibly specified by instructing the setting through higher layer signaling of the transmitting device.

[0121] Specifically, when the transmitting device and the receiving device preset the first indication value to be data in units of time slots, the transmitting device and the receiving device can set the expansion factor to a preset value.

[0122] Here, if the first instruction value is determined to be the symbol value contained in the half time slot, the preset scale factor value can be set to 7, i.e., scale_factor=7, and the maximum value transmitted from the transmitting device is the same as that of low frequency communication, i.e., the maximum symbol number is still 1120. After receiving the specific value, the receiving device multiplies the specific value by 7 to obtain the corresponding second instruction value.

[0123] In this embodiment, the advantage of setting scale_factor to 7 is that in high frequency communication, with the increase in SCS, the indication granularity can be indicated to be half the time slot (the general cyclic prefix (CP) length is 7 symbols and the extended CP length is 6 symbols), which can meet the indication needs, and at the same time, it is easy to indicate an integer number of time slots.

[0124] In addition, if the first instruction value is promised to be the symbol value contained in the time slot, the preset expansion factor value can be set to 14, i.e., scale_factor=14, and the maximum value transmitted from the transmitting device is the same as the low-frequency communication, i.e., the maximum symbol number is still 1120. After receiving the specific value, the receiving device multiplies the specific value by 14 to obtain the corresponding second instruction value.

[0125] In this embodiment, when the scale_factor is set to 14, the indicated granularity corresponds to a time slot, that is, after the receiving device receives the first indicated value, it calculates the remaining COT time length according to the promised expansion factor being the number of time slots.

[0126] After the receiving device performs an analysis process on the indicated data, the obtained second indication value may be understood as a number of time slots, for example, if the second indication value is 100, the COT remaining time length may be understood as 100 time slots, or the obtained second indication value may be understood as 0.5 time slots, for example, if the second indication value is 100, the COT remaining time length may be understood as 50 time slots.

[0127] In some embodiments, the method further includes determining an applied beam corresponding to the COT remaining time length information based on the applied beam instruction information.

[0128] Optionally, the applied beam indication information includes beam information and a beam number, and the beam information and the beam number are set by a network device, and the method further includes: determining that the COT remaining time information is not applied to the target beam if the indication value corresponding to the target beam is a first value, and determining that the COT remaining time information is applied to the target beam if the indication value corresponding to the target beam is a second value. The network device may be a transmitting device or a receiving device, and the transmitting device is different from the receiving device.

[0129] Specifically, the applied beam indication information may be indicated, for example, by a bitmap, which indicates whether an associated COT remaining time length indication is applicable to the associated beam, for example, a first numerical value of 0 indicating not applicable and a second numerical value of 1 indicating applicable, or vice versa.

[0130] For example, if a network device sets four beams, with SCS=960KHz, the COT information received by the receiving device is shown in Table 2 below.

[0131] [Table 2]

[0132] As shown in Table 2 above, the receiving device receives indication information regarding the remaining COT of the transmitting device, where CO-Duration=2240 is a numerical value calculated based on the indication information, the unit is the number of symbols, and the time corresponds to 2.5 ms.

[0133] For the beam identifier (Beam-1), the indication is 0, indicating that the COT remaining for beam Beam-1 is 0 symbols. Similar is the case for beam Beam-4.

[0134] For the beam identifier (Beam-2), the indication is 1, indicating that the COT remaining for Beam-1 is 2240 symbols, or the COT remaining time length is 2.5 ms. Beam-3 is similar.

[0135] In addition, for beam directions with an indication of 0 (i.e., beam directions with 0 symbols remaining in COT or where the LBT has failed), the receiving device does not need to detect the Physical Downlink Control Channel (PDCCH) of the associated beam direction, thereby achieving power saving effects.

[0136] Furthermore, 1. The above beam identifier may be replaced by a reference signal identifier.

[0137] Furthermore, 2. The bit indication corresponding to the beam identifier may be multiple bits, for example, 2 bits are used, specifically, for example, when the value is 00, it indicates that the associated COT remaining time length is not applied to the beam, when the value is 01, it indicates that a quarter of the associated COT remaining time length is applied to the beam, when the value is 10, it indicates that half the value of the associated COT remaining time length is applied to the beam, and when the value is 11, it indicates that the entire value of the associated COT remaining time length is applied to the beam.

[0138] Furthermore, 3. The beam information in the above COT information may be an uplink beam or a downlink beam.

[0139] Furthermore, in 4. COT information, if beam information is not set in the network device, the terminal device can consider the COT information to be all beam information set for the indicated cell, or some of the beam information set for the cell (e.g., in an uplink beam, a beam for which uplink data is scheduled within the indicated COT remaining time length. The scheduled uplink data here includes uplink data scheduling set by a higher layer or uplink data scheduled by physical layer dynamic signaling).

[0140] Furthermore, the correspondence between the "application instruction" and the "beam identifier" of the COT information can be set and indicated by higher layer signaling. For example, The first "application instruction" of the COT information is for the first beam identifier set by RRC (or the beam identifier with the smallest RRC-configured identification number).

[0141] The second "application instruction" in the COT information corresponds to the second beam identifier configured by the RRC (or the beam identifier with the next smallest RRC-configured identification number).

[0142] In some embodiments, the method further includes receiving PUSCH scheduling information transmitted by the transmitting device, and determining, based on the PUSCH scheduling information, one or more of a transmission time of the PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH.

[0143] In this embodiment, the PUSCH scheduling information includes grant information dynamically scheduled by the transmitting device and / or grant information configured by higher layer signaling to be granted.

[0144] In this embodiment, the method further includes converting the first LBT type to a second LBT type when a first condition is met, and the first condition includes one or more of: the transmission time of the PUSCH scheduling information is within an available time length range corresponding to the COT remaining time length information; the beam information in the PUSCH scheduling information includes COT beam information; and the PUSCH scheduling information includes COT related information.

[0145] Optionally, the second LBT type includes LBT type-2 or LBT type-3.

[0146] Optionally, the receiving device can apply a beam corresponding to the PUSCH data. Specifically, the receiving device can include the following steps:

[0147] Step 1: The receiving device can receive PUSCH scheduling information sent by the transmitting device, where the PUSCH scheduling information may include grant information of the uplink configuration grant (also referred to as upper layer signaling configuration grant) of the transmitting device or grant information of dynamic scheduling, where the grant information of the uplink configuration grant or the grant information of dynamic scheduling may include a PUSCH generation time, transmission beam information (e.g., beam 1), and an LBT type (e.g., LBT type 1).

[0148] Step 2: The receiving device determines the transmission time (eg, duration 0) of the PUSCH based on the grant information of the uplink configuration grant or the grant information of dynamic scheduling.

[0149] Step 3: The receiving device receives the COT information indicated by the transmitting device, and if the receiving device determines that the time information indicated by the COT information includes duration 0 time and the applied beam information indicated in the COT information includes beam 1 (the indication method may include implicit indication or explicit indication, or the PUSCH transmission applied to the uplink configuration grant / dynamic scheduling is set as the default setting, and the specific indication method will be described in detail later), the receiving device converts the LBT type indicated in Step 1 to another LBT type, and the specific conversion type may be determined by a protocol or may be set by higher layer signaling.

[0150] Optionally, when the receiving device converts the LBT type indicated in Step 1 to another LBT type, it may convert LBT type-1 to LBT type-2 or type-3. The LBT type-2 type may be that the gNB / UE performs one timeslot monitoring to determine the channel occupancy status and determines whether to transmit based on the monitoring result. The LBT type-3 type may be that the gNB / UE transmits directly without monitoring.

[0151] In this embodiment, the method further includes converting the first LBT type to a second LBT type when the reception time of the COT information satisfies a second condition, where the second condition includes that the reception time of the COT information is not earlier than the reception time of the PUSCH scheduling information, or the reception time of the PUSCH scheduling information is not later than the reception time of the COT information.

[0152] Optionally, the receiving device and / or the sending device may further convert the type of the LBT to provide further constraints.

[0153] If the time at which the receiving device receives the COT information is earlier (or later) than the time at which the receiving device receives the signaling for indicating the PUSCH transmission time, or if the time at which the receiving device receives the signaling for indicating the PUSCH transmission time is later (or earlier) than the time at which the receiving device receives the COT information, the receiving device may not perform conversion of the type of LBT (even if the time information indicated by the COT information includes duration 0 time). That is, before the receiving device transmits the PUSCH, the receiving device performs LBT based on the type of LBT indicated by the receiving device.

[0154] If the time at which the receiving device receives the COT information is not earlier (or later) than the time at which the receiving device receives signaling to indicate the PUSCH transmission time, or if the time at which the receiving device receives signaling to indicate the PUSCH transmission time is not later (or earlier) than the time at which the receiving device receives the COT information, the receiving device performs an LBT type conversion.

[0155] In this embodiment, the beam information in the PUSCH scheduling information includes COT beam information, or the PUSCH scheduling information includes COT related information. Established by higher layer signaling; As directed by the DCI, and The receiving device determines whether the beam information in the PUSCH scheduling information includes COT beam information by default, or whether the PUSCH scheduling information includes COT-related information by default.

[0156] Optionally, in a physical signal indicating COT information, the corresponding beam included may be an implicit indication, i.e., the physical signal indicating COT information does not include beam application information, and the receiving device and / or transmitting device may determine the beam application information by any of the following indication methods:

[0157] A: The higher layer signaling configuration determines that the COT information is applied to one or more beams (e.g., a beam corresponding to PUSCH data transmitted by an uplink configuration grant used in the higher layer signaling configuration, and / or a beam corresponding to PUSCH data used for dynamic scheduling, and / or a beam corresponding to an uplink sounding signal configured by higher layer signaling, and / or a beam corresponding to an uplink control channel PUCCH used in the higher layer signaling configuration and / or dynamic scheduling).

[0158] B: When the receiving device receives COT information, it is set as a default to be able to apply at least the following beam information to the COT information: A beam corresponding to PUSCH data transmitted by an uplink configuration grant used for higher layer signaling configuration, and / or A beam corresponding to PUSCH data used for dynamic scheduling, and / or A beam corresponding to an uplink sounding signal configured by higher layer signaling, and / or A beam corresponding to an uplink control channel PUCCH configured / dynamically scheduled by higher layer signaling.

[0159] In addition, the beam information in this disclosure may be indicated by the QCL type (Quasi-Colocation).

[0160] In addition, although each step in the flowchart in the above embodiment is displayed in sequence according to the direction of the arrow, these steps are not necessarily executed in the order shown by the arrow. Unless otherwise clearly explained in the text, the execution of these steps is not strictly limited in order and may be executed in other orders. Furthermore, at least some of the steps in the figures may include multiple sub-steps or multiple stages, and these sub-steps or stages do not necessarily have to be executed at the same timing, but may be executed at different timings, and the execution order does not necessarily have to be sequential, but may be executed in order or alternately with other steps or at least some of the sub-steps or stages of other steps.

[0161] In some embodiments, an apparatus is provided for determining an available amount of time for data communication applied to a receiving device.

[0162] 3 is a schematic diagram of an apparatus for determining an available time length for data communication provided by an embodiment of the present disclosure. As shown in FIG. 3, the apparatus includes: A receiving module 110 for receiving a first message, the first message including channel occupancy time (COT) information of an unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam indication information; and a determination module 120, which is used to determine an available time length for data reception or transmission based on the COT remaining time length information.

[0163] In some embodiments, the COT remaining time information is less than or equal to a maximum indicator value, the maximum indicator value being an indicator symbol value.

[0164] Determining an available time length for data reception or transmission based on the COT remaining time length information includes: Determining a first COT remaining time length corresponding to a maximum indicated value based on a conversion relationship between the indicated value and the COT remaining time length; determining that the amount of time available for data reception or transmission is less than or equal to a first COT remaining amount of time.

[0165] In some embodiments, the maximum indicator value comprises a maximum symbol value. Here, if the maximum SCS is 960KHz, the maximum value of the maximum symbol number is 4480, If the maximum SCS is 480KHz, the maximum value of the maximum symbol number is 2240, If the maximum SCS is 120KHz, then the maximum value of the maximum symbol number is 560.

[0166] In some embodiments, the COT remaining time information includes a first indicator value, and the first indicator value includes one of an indicator symbol value, a symbol value included in a half timeslot, or a symbol value included in a timeslot.

[0167] Determining an available time length for data reception or transmission based on the remaining COT time length information determining a second indicator value based on the first indicator value and the expansion factor; Determining a second COT remaining time length corresponding to the second indication value based on the second indication value and a conversion relationship between the indication value and the COT remaining time length; determining that the available time length for data reception or transmission is less than or equal to a second COT remaining time length.

[0168] In some embodiments, determining the second indicator value based on the first indicator value and the expansion factor includes: determining that a product of the first indicator value and the expansion factor is a second indicator value.

[0169] In some embodiments, when the first indication value is an indication symbol value, the extension factor is determined by the maximum COT length, the subcarrier spacing SCS, the reference SCS index, and the reference maximum channel occupancy time.

[0170] In some embodiments, the expansion factor is calculated according to the following formula:

number

number

number

number

number

number

[0171] In some embodiments, the expansion factor is determined based on pre-defined rules.

[0172] The pre-defined rules are If the first indication value is a number of symbols contained in the half-time slot, the expansion factor is a first preset value; or If the first indication value is a number of symbols included in the time slot, the expansion factor is a second preset value; Here, the second preset value is twice the second preset value.

[0173] In some embodiments, further comprising: This includes determining an application beam corresponding to the COT remaining time length information based on the application beam instruction information.

[0174] In some embodiments, the applied beam instruction information includes beam information and a beam number, the beam information and the beam number being set by the receiving device, and further comprising: determining that the COT remaining time length information is not applied to the target beam if the indicator value corresponding to the target beam is a first value; determining that the COT remaining time information is applied to the target beam if the indicator value corresponding to the target beam is a second value.

[0175] In some embodiments, further comprising: Receiving PUSCH scheduling information sent by a transmitting device; Based on the PUSCH scheduling information, determining one or more of a transmission time of the PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH.

[0176] In some embodiments, the PUSCH scheduling information includes grant information that is dynamically scheduled by the transmitting device and / or configured to be granted by higher layer signaling.

[0177] In some embodiments, converting the first LBT type to the second LBT type further comprises: converting the first LBT type to a second LBT type if a first condition is satisfied; The first condition is: The transmission time of the PUSCH scheduling information is within a range of the available time length corresponding to the COT remaining time length information; The beam information in the PUSCH scheduling information includes COT beam information; and The PUSCH scheduling information includes COT-related information.

[0178] In some embodiments, the beam information in the PUSCH scheduling information includes COT beam information, or the PUSCH scheduling information includes COT-related information. Established by higher layer signaling; As directed by the DCI, and The receiving device determines whether the beam information in the PUSCH scheduling information includes COT beam information by default, or whether the PUSCH scheduling information includes COT-related information by default.

[0179] In some embodiments, the second LBT type includes LBT type-2 or LBT type-3.

[0180] In some embodiments, further comprising: The method includes converting the first LBT type to a second LBT type when the reception time of the COT information satisfies a second condition, and the second condition includes that the reception time of the COT information is not earlier than the reception time of the PUSCH scheduling information or the reception time of the PUSCH scheduling information is not later than the reception time of the COT information.

[0181] In some embodiments, an apparatus is provided for determining an available amount of time for data communication applied to a sending device.

[0182] 4 is a schematic diagram of an apparatus for determining an available time length for data communication provided by an embodiment of the present disclosure. As shown in FIG. 4, the apparatus includes: A determination module 210 for determining channel occupation time (COT) information of an unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; and a sending module 220, which is used to send a first message including the COT information to a receiving device.

[0183] In some embodiments, the COT remaining time information is less than or equal to a maximum indicator value, the maximum indicator value being an indicator symbol value. The maximum instruction value is determined based on the maximum COT length and the subcarrier spacing SCS.

[0184] In some embodiments, the maximum indication value is further determined by a reference maximum indication range, a reference SCS index, and a reference maximum channel occupancy time.

[0185] In some embodiments, the maximum indicator value is calculated according to the following formula:

number

number

number

number

number

number

number

[0186] In some embodiments, the maximum indicator value is further determined by the number of time slots contained in each subframe and the number of symbols contained in one time slot.

[0187] In some embodiments, the maximum indicator value is calculated according to the following formula:

number

number

number

number

number

number

[0188] In some embodiments, the COT remaining time information includes a first numerical indicator.

[0189] The first indicator value includes either an indicator symbol value, a symbol value contained in a half time slot, or a symbol value contained in a time slot.

[0190] In some embodiments, the maximum indicator value comprises a maximum symbol value.

[0191] Here, if the maximum SCS is 960KHz, the maximum value of the maximum symbol number is 4480, If the maximum SCS is 480KHz, the maximum value of the maximum symbol number is 2240. If the maximum SCS is 120KHz, the maximum value of the maximum symbol number is 560.

[0192] In some embodiments, further comprising: The method includes transmitting PUSCH scheduling information to a receiving device, where the PUSCH scheduling information is used to instruct the receiving device to determine one or more of a transmission time of the PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH based on the PUSCH scheduling information.

[0193] In some embodiments, the PUSCH scheduling information includes grant information that is dynamically scheduled by the transmitting device and / or configured to be granted by higher layer signaling.

[0194] For specific limitations of the device for determining the available time length of data communication, reference may be made to the limitations of the method for determining the available time length of data communication described above. A description is omitted here. Each module in the device for determining the available time length of data communication may be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above modules may be built into or independent of a processor in a computer device as hardware, or may be stored in a memory in a computer device in the form of software so that the processor invokes an operation corresponding to each of the above modules.

[0195] In some embodiments, a receiving device is provided.

[0196] 5 is a schematic diagram of a receiving device provided by an embodiment of the present disclosure. As shown in FIG. 5, the receiving device includes a memory 11, a transceiver 12, and a processor 13.

[0197] Here, the memory is used to store a computer program, the transceiver is used to transmit and receive data under the control of the processor, and the processor reads the computer program in the memory; Receiving a first message, the first message including channel occupation time (COT) information of the unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; It is used to determine the available time length for data reception or transmission based on the COT remaining time length information.

[0198] In some embodiments, the COT remaining time information is less than or equal to a maximum indicator value, the maximum indicator value being an indicator symbol value.

[0199] Determining an available time length for data reception or transmission based on the remaining COT time length information Determining a first COT remaining time length corresponding to a maximum indicated value based on a conversion relationship between the indicated value and the COT remaining time length; Determining that the amount of time available for data reception or transmission is less than or equal to a first COT remaining amount of time.

[0200] In some embodiments, the maximum indicator value comprises a maximum symbol value.

[0201] Here, if the maximum SCS is 960KHz, the maximum value of the maximum symbol number is 4480, If the maximum SCS is 480KHz, the maximum value of the maximum symbol number is 2240. If the maximum SCS is 120KHz, the maximum value of the maximum symbol number is 560.

[0202] In some embodiments, the COT remaining time information includes a first indicator value, and the first indicator value includes one of an indicator symbol value, a symbol value included in a half timeslot, or a symbol value included in a timeslot.

[0203] Determining an available time length for data reception or transmission based on the remaining COT time length information determining a second indicator value based on the first indicator value and the expansion factor; Determining a second COT remaining time length corresponding to the second indication value based on the second indication value and a conversion relationship between the indication value and the COT remaining time length; Determining that the available time length for data reception or transmission is less than or equal to a second COT remaining time length.

[0204] In some embodiments, determining the second indicator value based on the first indicator value and the expansion factor includes: determining that a product of the first indicator value and the expansion factor is a second indicator value.

[0205] In some embodiments, when the first indication value is an indication symbol value, the extension factor is determined by the maximum COT length, the subcarrier spacing SCS, the reference SCS index, and the reference maximum channel occupancy time.

[0206] In some embodiments, the expansion factor is calculated according to the following formula:

number

number

number

number

number

number

[0207] In some embodiments, the expansion factor is determined based on pre-defined rules.

[0208] The pre-defined rules are If the first indication value is a number of symbols contained in the half-time slot, the expansion factor is a first preset value; or If the first indication value is a number of symbols included in the time slot, the expansion factor is a second preset value; Here, the second preset value is twice the second preset value.

[0209] In some embodiments, further comprising: It includes determining an application beam corresponding to the COT remaining time length information based on the application beam instruction information.

[0210] In some embodiments, the applied beam instruction information includes beam information and a beam number, the beam information and the beam number being set by the receiving device, and further comprising: determining that the COT remaining time length information is not applied to the target beam if the indicator value corresponding to the target beam is a first value; determining that the COT remaining time information is applied to the target beam if the indicator value corresponding to the target beam is a second value.

[0211] In some embodiments, further comprising: Receiving PUSCH scheduling information sent by a transmitting device; Based on the PUSCH scheduling information, determining one or more of a transmission time of the PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH.

[0212] In some embodiments, the PUSCH scheduling information includes grant information that is dynamically scheduled by the transmitting device and / or configured to be granted by higher layer signaling.

[0213] In some embodiments, further comprising: converting the first LBT type to a second LBT type if a first condition is satisfied; The first condition is: The transmission time of the PUSCH scheduling information is within a range of the available time length corresponding to the COT remaining time length information; The beam information in the PUSCH scheduling information includes COT beam information; and The PUSCH scheduling information includes COT-related information.

[0214] In some embodiments, the beam information in the PUSCH scheduling information includes COT beam information, or the PUSCH scheduling information includes COT-related information. Established by higher layer signaling; As directed by the DCI, and The receiving device determines whether the beam information in the PUSCH scheduling information includes COT beam information by default, or whether the PUSCH scheduling information includes COT-related information by default.

[0215] In some embodiments, the second LBT type includes LBT type-2 or LBT type-3.

[0216] In some embodiments, further comprising: The method includes converting the first LBT type to a second LBT type when the reception time of the COT information satisfies a second condition, and the second condition includes that the reception time of the COT information is not earlier than the reception time of the PUSCH scheduling information or the reception time of the PUSCH scheduling information is not later than the reception time of the COT information.

[0217] In some embodiments, a sending device is provided.

[0218] 6 is a schematic diagram of a transmitting device provided by an embodiment of the present disclosure. As shown in FIG. 6, the transmitting device includes a memory 21, a transceiver 22, and a processor 23.

[0219] Here, the memory is used to store a computer program, the transceiver is used to transmit and receive data under the control of the processor, and the processor reads the computer program in the memory; determining channel occupation time (COT) information for the unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; The method includes: sending a first message including the COT information to a receiving device; and

[0220] In some embodiments, the applied beam instruction information includes beam information and a number of beams, the beam information and the number of beams being set by the transmitting device, and further includes: determining that the COT remaining time length information is not applied to the target beam if the indicator value corresponding to the target beam is a first value; determining that the COT remaining time information is applied to the target beam if the indicator value corresponding to the target beam is a second value.

[0221] In some embodiments, the COT remaining time information is less than or equal to a maximum indicator value, the maximum indicator value being an indicator symbol value; The maximum instruction value is determined based on the maximum COT length and the subcarrier spacing SCS.

[0222] In some embodiments, the maximum indication value is further determined by a reference maximum indication range, a reference SCS index, and a reference maximum channel occupancy time.

[0223] In some embodiments, the maximum indicator value is calculated according to the following formula:

number

number

number

number

number

number

number

[0224] In some embodiments, the maximum indicator value is further determined by the number of time slots contained in each subframe and the number of symbols contained in one time slot.

[0225] In some embodiments, the maximum indicator value is calculated according to the following formula:

number

number

number

number

number

number

[0226] In some embodiments, the COT remaining time information includes a first numerical indicator.

[0227] The first indicator value includes either an indicator symbol value, a symbol value contained in a half time slot, or a symbol value contained in a time slot.

[0228] In some embodiments, the maximum indicator value comprises a maximum symbol value.

[0229] Here, if the maximum SCS is 960KHz, the maximum value of the maximum symbol number is 4480, If the maximum SCS is 480KHz, the maximum value of the maximum symbol number is 2240, If the maximum SCS is 120KHz, then the maximum value of the maximum symbol number is 560.

[0230] In some embodiments, the method further includes transmitting PUSCH scheduling information to the receiving device, where the PUSCH scheduling information is used to instruct the receiving device to determine one or more of a PUSCH transmission time, PUSCH beam information, and a PUSCH first LBT type based on the PUSCH scheduling information.

[0231] In some embodiments, the PUSCH scheduling information includes grant information that is dynamically scheduled by the transmitting device and / or configured to be granted by higher layer signaling.

[0232] In the above device, the memory and the processor are electrically connected directly or indirectly to realize data transmission or interaction. For example, these elements may be electrically connected to each other by one or more communication buses or signal lines, for example, they may be connected via a bus. The memory stores computer-executable instructions for implementing a data access control method, and includes at least one software function module stored in the memory in the form of software or firmware, and the processor executes the software programs and modules stored in the memory to perform various functional applications and data processing.

[0233] The memory may be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), etc. Here, the memory is used to store programs, and the processor executes the programs after receiving execution instructions. Furthermore, the software programs and modules in the memory may further include an operating system, which includes various software components and / or drivers for management system tasks (e.g., memory management, storage device control, power management, etc.) and can intercommunicate with various hardware or software components, thereby providing an execution environment for other software components.

[0234] The processor may be an integrated circuit chip having a signal processing capability. The above processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc. Each method, step, and logic block diagram disclosed in the embodiments of the present disclosure may be realized or executed. The general-purpose processor may be a microprocessor, and the processor may be any conventional processor, etc.

[0235] In some embodiments, a computer-readable storage medium is provided having computer-executable instructions stored thereon that, when executed by a processor, are used to implement steps of each of the method embodiments of the present disclosure.

[0236] In some embodiments, a computer program product is provided that includes a computer program that, when executed by a processor, performs the steps of each of the method embodiments of the present disclosure.

[0237] Those skilled in the art can understand that the whole or part of the process of the method of the above embodiment is realized by commanding the relevant hardware by a computer program, and the computer program may be stored in a non-volatile computer-readable storage medium, and when the computer program is executed, it may include the flow of each of the above embodiment of the method. Here, any reference to memory, storage, database, or other medium used in each embodiment provided in the present disclosure may include non-volatile and / or volatile memory. The non-volatile memory may include a read only memory (ROM), a programmable read-only memory (PROM), an electrically programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may include a random access memory (RAM) or an external cache memory. The RAM may be in the form of, for example and without limitation, static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0238] Those skilled in the art will be inclined to think of other embodiments of the present disclosure after considering the application of the disclosure in the specification and practice. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, including those within the general knowledge or customary technical means in the art that are not disclosed in the present disclosure, in accordance with the general principles of the present disclosure. It is considered that the specification and examples are exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0239] It is understood that the present disclosure is not limited to the precise construction already described above and illustrated in the drawings, but can be modified and altered in various ways without departing from the scope of the present disclosure, which is limited only by the scope of the appended claims.

[0240] This disclosure claims priority to the following Chinese patent applications: application number 2022100238137, titled "Method, Apparatus, Device and Medium for Determining the Available Time Length of Data Communication," filed with the China Patent Office on January 10, 2022, application number 2022108262543, titled "Method, Apparatus, Device and Medium for Determining the Available Time Length of Data Communication," filed with the China Patent Office on July 14, 2022, application number 2022109347943, titled "Method, Apparatus, Device and Medium for Determining the Available Time Length of Data Communication," filed with the China Patent Office on August 4, 2022, application number 2022109347943, titled "Method, Apparatus, Device and Medium for Determining the Available Time Length of Data Communication," the entire contents of which are incorporated herein by reference. [Explanation of symbols]

[0241] 110 Receiver Module 120 Decision Module 210 Decision Module 220 Transmitting Module 11. Memory 12 Transmitter / Receiver 13 Processors 21 Memory 22 Transmitter / Receiver 23 Processors

Claims

1. 1. A method for determining an available time period for data communication, applied to a receiving device, comprising: receiving a first message, the first message including channel occupancy time (COT) information for an unlicensed frequency band, the COT information including COT time remaining information and / or applied beam designation information; determining an available time for data reception or transmission based on the COT remaining time information; A method comprising:

2. The COT remaining time information is equal to or less than a maximum indicator value, the maximum indicator value being an indicator symbol value; Determining an available time length for data reception or transmission based on the COT remaining time length information, determining a first COT remaining time length corresponding to the maximum instruction value based on a conversion relationship between the instruction value and the COT remaining time length; determining that the available time for data reception or transmission is less than or equal to the first COT remaining time.

2. The method according to claim 1 .

3. the maximum indicator value includes a maximum symbol value, If the maximum SCS is 960 KHz, the maximum value of the maximum symbol number is 4480; If the maximum SCS is 480 KHz, the maximum value of the maximum symbol number is 2240; When the maximum SCS is 120 KHz, the maximum value of the maximum symbol number is 560; 3. The method according to claim 2 .

4. The COT remaining time information includes a first indicator value, the first indicator value including any one of an indicator symbol value, a symbol value included in a half time slot, or a symbol value included in a time slot; Determining an available time length for data reception or transmission based on the COT remaining time length information, determining a second indicator value based on the first indicator value and an expansion factor; and determining a second COT remaining time length corresponding to the second indication value based on the second indication value and a conversion relationship between the indication value and the COT remaining time length; determining that the available time for data reception or transmission is less than or equal to the second COT remaining time.

2. The method according to claim 1 .

5. Determining a second indicator value based on the first indicator value and an expansion factor includes: determining that a product of the first indicator value and the expansion factor is the second indicator value.

5. The method according to claim 4 .

6. When the first indication value is an indication symbol value, the extension factor is determined by a maximum COT length, a subcarrier spacing SCS, a reference SCS index, and a reference maximum channel occupancy time; 5. The method according to claim 4 .

7. The expansion factor is calculated according to the following formula: [0010] Where: [0025] denotes the expansion factor, [0030] indicates the maximum COT length, [0045] denotes the subcarrier spacing SCS, [0050] denotes the reference SCS index, [006] denotes the reference maximum channel occupancy time, 7. The method according to claim 6 .

8. The expansion factor is determined based on a preset rule; The preset rule is: If the first indication value is a number of symbols contained in a half-time slot, the expansion factor is a first preset value; or If the first indication value is a number of symbols included in a time slot, the expansion factor is a second preset value; the second preset value is twice the second preset value; 5. The method according to claim 4 .

9. Further comprising: determining an application beam corresponding to COT remaining time length information based on the application beam instruction information; 9. The method according to any one of claims 1 to 8, characterized in that

10. The applied beam instruction information includes beam information and a number of beams, and the beam information and the number of beams are set by the receiving device; determining that the COT remaining time information is not applied to the target beam if the indicator value corresponding to the target beam is a first value; determining that the COT remaining time information is applied to the target beam if the indicator value corresponding to the target beam is a second value; 10. The method according to claim 9.

11. receiving PUSCH scheduling information transmitted by a transmitting device; and determining one or more of a transmission time of a PUSCH, beam information of a PUSCH, and a first LBT type of a PUSCH based on the PUSCH scheduling information.

9. The method according to any one of claims 1 to 8, characterized in that

12. The PUSCH scheduling information includes grant information dynamically scheduled by the transmitting device and / or grant information configured by higher layer signaling to grant; 12. The method according to claim 11 .

13. If a first condition is satisfied, converting the first LBT type to a second LBT type; The first condition is: The transmission time of the PUSCH scheduling information is within a range of an available time length corresponding to the COT remaining time length information; The beam information in the PUSCH scheduling information includes COT beam information; and the PUSCH scheduling information includes COT related information; 13. The method according to claim 11 or 12.

14. The beam information in the PUSCH scheduling information includes COT beam information, or the PUSCH scheduling information includes COT related information. Established by higher layer signaling; As directed by the DCI; and The receiving device is determined by either the default setting that the beam information in the PUSH scheduling information includes COT beam information, or the default setting that the PUSH scheduling information includes COT related information.

14. The method according to claim 13.

15. The second LBT type includes LBT type-2 or LBT type-3; 14. The method according to claim 13.

16. If the reception time of the COT information satisfies a second condition, converting the first LBT type to a second LBT type, wherein the second condition includes: the reception time of the COT information is not earlier than the reception time of the PUSCH scheduling information; or the reception time of the PUSCH scheduling information is not later than the reception time of the COT information.

12. The method according to claim 11 .

17. 1. A method for determining an available time period for data communication, applied to a transmitting device, comprising: determining channel occupancy time (COT) information for an unlicensed frequency band, the COT information including COT time remaining information and / or applied beam designation information; sending a first message to a recipient device including the COT information; A method comprising:

18. The applied beam instruction information includes beam information and a number of beams, and the beam information and the number of beams are set by the transmitting device; determining that the COT remaining time information is not applied to the target beam if the indicator value corresponding to the target beam is a first value; determining that the COT remaining time information is applied to the target beam if the indicator value corresponding to the target beam is a second value; 20. The method according to claim 17 .

19. The COT remaining time information is equal to or less than a maximum indicator value, the maximum indicator value being an indicator symbol value; The maximum indication value is determined based on the maximum COT length and the subcarrier spacing SCS.

20. The method according to claim 17 .

20. The maximum indication value is further determined by a reference maximum indication range, a reference SCS index, and a reference maximum channel occupancy time.

20. The method according to claim 19.

21. The maximum indication value is calculated according to the following formula: [0070] Where: [0080] indicates the maximum indicated value, [0090] indicates the maximum COT length, [0010] denotes the subcarrier spacing SCS, ##EQU00011## indicates the reference maximum indication range, ##EQU00012## denotes the reference SCS index, ##EQU00013## denotes the reference maximum channel occupancy time, 21. The method according to claim 20.

22. The maximum indication value is further determined by the number of time slots included in each subframe and the number of symbols included in one time slot.

21. The method according to claim 20.

23. The maximum indication value is calculated according to the following formula: ##EQU14## Where: ##EQU00015## indicates the maximum indicated value, ##EQU00016## indicates the maximum COT length, ##EQU00017## denotes the subcarrier spacing SCS, [0018] denotes the number of time slots contained in each subframe, [0019] indicates the number of symbols contained in one time slot, 23. The method according to claim 22.

24. The COT remaining time information includes a first indicator value, The first indicator value includes an indicator symbol value, a symbol value included in a half time slot, or a symbol value included in a time slot.

20. The method according to claim 17 .

25. the maximum indicator value includes a maximum symbol value, If the maximum SCS is 960 KHz, the maximum value of the maximum symbol number is 4480; If the maximum SCS is 480 KHz, the maximum value of the maximum symbol number is 2240; If the maximum SCS is 120 KHz, the maximum value of the maximum symbol number is 560; 24. The method according to any one of claims 19 to 23, characterized in that

26. Further comprising: transmitting PUSCH scheduling information to a receiving device, the PUSCH scheduling information being used to instruct the receiving device to determine one or more of a PUSCH transmission time, PUSCH beam information, and a PUSCH first LBT type based on the PUSCH scheduling information; 25. The method according to any one of claims 17 to 24, characterized in that

27. The PUSCH scheduling information includes grant information dynamically scheduled by the transmitting device and / or grant information configured by higher layer signaling to grant; 27. The method of claim 26.

28. A receiving device, comprising: a memory, a transceiver, and a processor; The memory is used to store a computer program, the transceiver is used to transmit and receive data under the control of the processor, and the processor reads the computer program in the memory; receiving a first message, the first message including channel occupancy time (COT) information for an unlicensed frequency band, the COT information including COT time remaining information and / or applied beam designation information; determining an available time for data reception or transmission based on the COT remaining time information; A receiving device comprising:

29. A transmitting device, comprising: a memory, a transceiver, and a processor; The memory is used to store a computer program, the transceiver is used to transmit and receive data under the control of the processor, and the processor reads the computer program in the memory; determining channel occupancy time (COT) information for an unlicensed frequency band, the COT information including COT time remaining information and / or applied beam designation information; sending a first message including the COT information to a recipient device; A sending device comprising:

30. An apparatus for determining an available time length for data communication, adapted for a receiving device, comprising: A receiving module for receiving a first message, the first message including channel occupancy time (COT) information of an unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; a determination module adapted to determine an available time for data reception or transmission based on the COT remaining time information; 13. An apparatus for determining an available time length for data communication, comprising:

31. An apparatus for determining an available time length for data communication, adapted for a transmitting device, comprising: A determination module used for determining channel occupancy time (COT) information of an unlicensed frequency band, the COT information including COT remaining time length information and / or applied beam designation information; a sending module adapted to send a first message including the COT information to a receiving device; 13. An apparatus for determining an available time length for data communication, comprising:

32. A processor-readable storage medium having a computer program stored thereon, the computer program being adapted to cause the processor to execute the method of any one of claims 1 to 27. A processor-readable storage medium comprising:

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