WO2023134678A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2023134678A1
WO2023134678A1 PCT/CN2023/071609 CN2023071609W WO2023134678A1 WO 2023134678 A1 WO2023134678 A1 WO 2023134678A1 CN 2023071609 W CN2023071609 W CN 2023071609W WO 2023134678 A1 WO2023134678 A1 WO 2023134678A1
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WO
WIPO (PCT)
Prior art keywords
subband
information
time slot
time
slot format
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PCT/CN2023/071609
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English (en)
French (fr)
Inventor
张莉莉
戴喜增
郭志恒
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华为技术有限公司
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Publication of WO2023134678A1 publication Critical patent/WO2023134678A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078Timing of allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex

Definitions

  • the embodiments of the present application relate to the communication field, and more specifically, to a communication method and a communication device.
  • SBFD subband full duplex
  • TDD time division duplex
  • OFDM orthogonal frequency division multiplexing
  • the network device indicates that the transmission direction of one OFDM symbol in one time slot can only be downlink or uplink or flexible.
  • the transmission direction of some OFDM symbols in a full-duplex time slot can be both uplink and downlink. Therefore, the current time slot allocation indication method for non-full-duplex time slots cannot be applied to full-duplex time slots.
  • Embodiments of the present application provide a communication method and a communication device, which can effectively indicate the time slot ratio of full-duplex time slots.
  • a communication method is provided, and the method may be executed by a terminal device, or may also be executed by a component (such as a chip or a circuit) of the terminal device, which is not limited.
  • a component such as a chip or a circuit
  • terminal Device execution is taken as an example for description.
  • the method may include: receiving first information from a network device, the first information indicating a duplex type of the first time unit, the duplex type including full duplex and non-full duplex; receiving second information from the network device, The second information indicates the transmission direction of the first time unit; and the transmission direction of the first carrier in the first time unit is determined according to the first information and the second information.
  • the first information indicates that the duplex type of the first time unit is full duplex
  • the terminal device determines the transmission direction of at least one subband included in the first carrier in the first time unit according to the second information.
  • determining the transmission direction of the first carrier in the first time unit according to the first information and the second information may also be described as: according to the first time unit
  • the first information and the second information determine a transmission direction of symbols of a first time unit on at least one subband in a first carrier.
  • determining the transmission direction of the first carrier in the first time unit can also be understood as: after receiving the first information and the second information, the terminal device directly A time unit and a time-frequency resource corresponding to at least one subband of the first carrier are used to transmit data information, control information or signals in a corresponding transmission direction.
  • the terminal device can directly perform data information on the time-frequency resources corresponding to the first time unit and the first carrier according to the transmission direction indicated by the second information, and control Transmission of information or signals; when the first time unit is a full-duplex time unit, the terminal device uses the time-frequency resource corresponding to the first time unit and at least one subband of the first carrier according to the transmission direction directly indicated by the second information Data information, control information or signal transmission.
  • the time slot ratio of the full-duplex time slot can be effectively indicated to save signaling overhead.
  • This solution can indicate the transmission direction of the symbol in the first time unit on the subband used for downlink transmission in the first carrier only by adding a duplex type flag bit in the first information.
  • the transmission direction of the symbol in the first time unit on the subband used for uplink transmission in the first carrier is implicitly indicated by combining the flag bit, which reduces the transmission signaling of the air interface.
  • the first information indicates that the duplex type of the first time unit is full duplex, and in the first time unit, the first carrier includes the first The transmission directions of the first subband and the second subband are different from the subband and the second subband, wherein the first subband and the second subband do not overlap, partially overlap or completely overlap in the frequency domain.
  • first sub-band and the second sub-band refer to two types of sub-bands with different transmission directions, and it does not mean that one only includes two sub-bands. That is, one carrier may include N subbands, where N is an integer greater than or equal to 2.
  • the transmission directions of the first subband and the second subband are different, which may be understood as: for multiple subbands that are continuous or discontinuous in the frequency domain, the directions on at least one symbol in the time domain are inconsistent.
  • determining the transmission direction of the first carrier in the first time unit according to the first information and the second information includes: determining the first sub- The transmission direction of the tape is the transmission direction indicated by the second information. Wherein, on all or part of the symbols included in the first time unit, the transmission direction of the first subband is opposite to the transmission direction of the second subband.
  • the first subband here is a subband used for downlink transmission in the first carrier
  • the second subband is a subband used for uplink transmission in the first carrier.
  • the terminal device analyzes the transmission direction of the first subband included in the first carrier according to the second information, and the transmission direction of the second subband included in the first carrier is not affected by the second information. For example: on all symbols in the first time unit, the transmission direction of the second subband in the first carrier is uplink, or the terminal device determines that the transmission direction of the second subband on some symbols in the first time unit is flexible and The transmission direction of the second subband on the remaining part of the symbols is uplink.
  • the second information indicates that the transmission direction of the N symbols in the first time unit is downlink, and N is a positive integer.
  • Determining the transmission direction on the first carrier in the first time unit includes: determining that in the N symbols included in the first time unit, the transmission direction of the first subband is downlink, and the transmission direction of the second subband The direction of transmission is uplink.
  • third information is received from the network device, where the third information indicates the ratio of the first subband to the second subband.
  • the first subband and the second subband are determined according to the third information.
  • a method for determining the positions of the first sub-band and the second sub-band is provided, and the terminal device can determine the transmission direction of the sub-band at the corresponding position according to the sub-band ratio of the first carrier.
  • the first information further indicates a proportion of the first subband and the second subband.
  • an indication manner in which the ratio of subbands of the first carrier is variable is given.
  • the first indication information occupies 2 bits. When the 2 bits are 00, it indicates that the first time unit is a non-full-duplex time unit. When the 2 bits of information are 01, 10 and 11, they indicate different sub-units of the first carrier respectively. With a ratio, when the 2-bit information is 01, 10, and 11, it implicitly indicates that the first time unit is a full-duplex time unit. That is, the first information implicitly indicates that the duplex type of the first time unit is full duplex through the subband ratio of the first carrier.
  • a communication method is provided.
  • This method can be executed by a network device, or can also be executed by a component (such as a chip or a circuit) of the network device.
  • a component such as a chip or a circuit
  • This is not limited.
  • the network Device execution is taken as an example for description.
  • the method may include: sending first information to a terminal device, where the first information indicates a duplex type of the first time unit, where the duplex type includes full-duplex and non-full-duplex; sending second information to the terminal device, The second information indicates the transmission direction of the first time unit.
  • the first information indicates that the duplex type of the first time unit is full duplex, and in the first time unit, the first carrier includes the first sub- The transmission directions of the first subband and the second subband are different, wherein the first subband and the second subband do not overlap, partially overlap, or completely overlap in the frequency domain.
  • the transmission direction of the first subband is the transmission direction indicated by the second information.
  • the transmission direction of the first subband is opposite to the transmission direction of the second subband.
  • the second information indicates that the transmission direction of the N symbols in the first time unit is downlink, and on the N symbols included in the first time unit , the transmission direction of the first subband is downlink, and the transmission direction of the second subband is uplink.
  • third information is sent to the terminal device, where the third information indicates a proportion of the first subband and the second subband.
  • the first information further indicates a proportion of the first subband and the second subband.
  • a communication method is provided, and the method may be executed by a terminal device, or may also be executed by a component (such as a chip or a circuit) of the terminal device, which is not limited.
  • a component such as a chip or a circuit
  • the method includes: receiving fourth information from a network device, where the fourth information includes N time slot format indication SFIs, the first SFI is one of the N SFIs, and the first SFI indicates a combination of M time slot formats , the first slot format among the M slot formats indicates the slot format of the first resource, the first resource is located in the first time unit in the time domain and is located in the first sub-unit included in the first carrier in the frequency domain Band, wherein, the first time unit is a full-duplex time unit, and both N and M are positive integers; according to the first SFI, determine the transmission direction on the first resource.
  • the fourth information includes N time slot format indication SFIs
  • the first SFI is one of the N SFIs
  • the first SFI indicates a combination of M time slot formats
  • the first slot format among the M slot formats indicates the slot format of the first resource
  • the first resource is located in the first time unit in the time domain and is located in the first sub-unit included in the first carrier in the frequency domain Band, wherein, the first
  • the first time slot format indicates the time slot format of the first resource
  • the first resource is located in the first time unit and the first subband included in the first carrier.
  • the time slot format of the first subband included in the first carrier or, the first time slot format indicates the time slot format of the first time unit on the first subband of the first carrier
  • the terminal device can obtain the slot format combination corresponding to the SFI by interpreting the SFI, and determine the first slot format in the first carrier in the full-duplex time unit according to one slot format in the slot format combination corresponding to the SFI.
  • the time slot format of the sub-band saves the signaling overhead, and in addition, realizes the time slot format of dynamic notification of the full-duplex time slot while minimizing the modification of the SFI.
  • a communication method is provided, and the method may be executed by a network device, or may also be executed by a component (such as a chip or a circuit) of the network device, which is not limited.
  • a component such as a chip or a circuit
  • the network Device execution is taken as an example for description.
  • the method includes: determining fourth information, where the fourth information includes N time slot format indication SFIs, the first SFI is one of the N SFIs, the first SFI indicates a combination of M time slot formats, and the M
  • the first slot format in the slot formats indicates the slot format of the first resource, and the first resource is located in the first time unit and the first subband included in the first carrier, wherein the first time unit is full double Working time unit, N and M are both positive integers; send the fourth information to the terminal device.
  • the transmission direction of the second resource is uplink, and the second resource is located in the first time unit and the second subband.
  • the slot formats in the first slot format combination all indicate the slot format of the first subband in the full-duplex time unit.
  • the terminal device defaults that on all OFDM symbols in the first time unit, the transmission direction of the second subband is uplink.
  • the slot formats in the first slot format combination all indicate the slot format of the first subband in the full-duplex time unit.
  • the terminal device determines the time slot format of the second subband in the first time unit according to the first time slot format combination. Wherein, on all or part of the symbols included in the first time unit, the transmission direction of the first subband is opposite to the transmission direction of the second subband.
  • the second slot format among the M slot formats indicates the slot format of the second resource, and the second resource located in the first time unit and the second subband.
  • the terminal device configures the time slot format of the second subband in the first carrier in the first time unit according to another time slot format in the time slot format combination corresponding to the SFI, that is, the terminal device can pass multiple The time slot formats respectively indicate the transmission directions of different subbands in the first time unit.
  • the first time slot format and the second time slot format are adjacent two of the M time slot formats slot format.
  • the terminal device can quickly resolve the transmission direction for different subbands on a time slot from the interpreted time slot format indication information. For example, when the terminal device obtains the slot format combination indicated by the first SFI, it can obtain the slot formats of different subbands of the current full-duplex time unit in the shortest time, thereby reducing the need for the terminal device to determine the current full-duplex time unit The time required for the direction of transmission. That is, for a time slot format combination, when reading sequentially, the time slot information of different subbands of the full-duplex time unit can be obtained in the shortest time, that is, in the first few time slot format indications. Similarly, the terminal device can sequentially acquire time slot information of different subbands of the subsequent full-duplex time unit in the shortest time, thereby reducing the time required for the terminal device to determine the transmission direction of the subsequent full-duplex time unit.
  • the first time slot format further indicates a time slot format of a third resource
  • the third resource is located between the first time unit and For the third subband included in the first carrier, the time slot format of the first resource is the same as the time slot format of the third resource.
  • the first time slot format may be used to indicate the time slot format of multiple subbands with the same transmission direction but discontinuous in the frequency domain in the first carrier.
  • the first M/2 slot formats in the M slot formats respectively indicate that they are located in M/2 time units and Timeslot formats located on the first subband; the last M/2 slot formats among the M timeslot formats respectively indicate slot formats located in M/2 time units and located on the second subband.
  • the terminal device can respectively configure the time slot format of one sub-band in one carrier in multiple time units according to the multiple time slot formats, realizing the dynamic notification of the time slot format of the full-duplex time slot.
  • the fourth information is scrambled by using a first RNTI, and the first RNTI indicates that the M times are determined from the first set.
  • the first set only includes at least one combination configured for full-duplex timeslots, and each combination of the at least one combination includes at least one timeslot format.
  • the terminal device can know to select a time slot format combination from the first set according to the scrambling of the first RNTI, and the selected time slot format combination is used for a full-duplex time unit.
  • the fourth information is scrambled by a second RNTI, and the second RNTI indicates that the M time intervals are determined from the second set.
  • a combination of slot formats the second set includes at least one combination configured for full-duplex time slots and at least one combination configured for non-full-duplex time slots, and each combination of the at least one combination includes at least one time slot gap format.
  • the terminal device can know to select a time slot format combination from the second set according to the scrambling of the second RNTI.
  • the first time slot format combination indicated by the first SFI configured by the network device to the terminal device is any combination in the second set configured for full-duplex time slots in the second set.
  • the second set includes a total of X time slot format combinations, wherein the first m time slot format combinations are incomplete Duplex time slots are configured, and the remaining X-m time slot format combinations are configured for full-duplex time slots, where m is a positive integer less than X.
  • the X is an integer greater than or equal to 512.
  • the number of bits of the information block occupied by the first SFI in the first indication information is greater than 9.
  • a communication method is provided, and the method may be executed by a terminal device, or may also be executed by a component (such as a chip or a circuit) of the terminal device, which is not limited.
  • a component such as a chip or a circuit
  • the method includes: receiving first signaling from the base station, the first signaling includes a first bit field, a second bit field and a third bit field, the first bit field is used to indicate the time slot index, and the second bit field is used to indicate The time slot corresponding to the time slot index is a sub-band full-duplex time slot or a non-sub-band full-duplex time slot, and the third bit field is used to indicate the transmission direction of the symbols contained in the time slot corresponding to the time slot index;
  • the two-bit field is the first state value
  • the time slot corresponding to the time slot index is a sub-band full-duplex time slot
  • the second bit field is the second state value
  • the time slot corresponding to the time slot index is a non-sub-band full-duplex time slot. duplex time slot.
  • this method can effectively indicate the time slot ratio of the full-duplex time slot.
  • the network device is sending the time slot ratio
  • the base station informs the terminal device that the time slot corresponding to the time slot index is sub-band full-duplex
  • the terminal device can determine the transmission direction of the first subband and the second subband in a carrier on the time slot corresponding to the time slot index according to the information in the second bit field. This method can save signaling.
  • the third bit field when the second bit field is the first state value, the third bit field is used to indicate the first subband and/or the third subband of the first carrier , and the transmission direction of the second subband of the first carrier is uplink, wherein the first carrier includes the first subband/third subband and the second subband; when the second bit field is the second state value When , the third bit field is used to indicate the transmission direction of the first carrier.
  • the terminal device analyzes the transmission direction of the first sub-band included in the first carrier according to the second bit field, and the first sub-band contained in the first carrier The transmission direction of the included second subband is not affected by the second information, and is all uplink.
  • the first signaling further includes subband indication information, and according to the second bit field and the subband indication information, the first subband and/or The transmission direction of the third subband is the transmission direction indicated by the third bit field; according to the second bit field and the subband indication information, it is determined that the transmission direction of the second subband of the first carrier is uplink.
  • the terminal device when the time slot is a full-duplex time slot, the terminal device can determine the subbands of different transmission directions in the first carrier according to the subband indication information, so that the terminal device can determine the subbands in the first carrier in combination with the third information. Transmission direction for multiple subbands.
  • the first state value is a bitmap bitmap, and the first state value corresponds to at least one kind of subband indication information. According to the subband indication information corresponding to the first state value, determine that the transmission direction of the first subband and/or the third subband of the first carrier is the transmission direction indicated by the third bit field; and determine the transmission direction of the first subband of the first carrier The transmission direction of the second sub-band is uplink.
  • the duplex type and subband ratio of the time slot are combined and indicated by a bitmap, which saves signaling overhead.
  • the first state value is 00
  • it means that the time slot corresponding to the time slot index of the first bit field is a non-subband full-duplex time slot
  • the first state value is 01, 10 and 11
  • the different subband ratios of the first carrier also implicitly indicate that the time slot corresponding to the time slot index in the first bit field is a sub-band full-duplex time slot. That is, the first information implicitly indicates that the duplex type of the first time unit is full duplex through the subband ratio of the first carrier.
  • a communication method is provided.
  • the method may be executed by a terminal device, or may also be executed by a component (such as a chip or a circuit) of the terminal device, which is not limited.
  • a component such as a chip or a circuit
  • terminal Device execution is taken as an example for description.
  • the method includes: receiving time slot format indication information from the base station, where the time slot format indication information includes at least one time slot format indication index, and the time slot combination configuration information corresponding to the time slot format indication index is used to indicate the subband contained in a carrier In the transmission direction, one carrier includes N subbands, and N is an integer greater than or equal to 2.
  • the terminal device can determine the time slot format of the N subbands in the first carrier on the full-duplex time slot according to the received time slot combination configuration information. This solution can save signaling, and at the same time, realize The slot format for dynamic notification of full-duplex slots is specified.
  • the time slot corresponding to the first slot is the time slot format indication information of the first subband
  • the time slot format indication information corresponding to the second time slot is the time slot format indication information of the second subband
  • each time slot combination configuration information In the time slot format indication information corresponding to N time slots, when N is 3, the time slot format indication information corresponding to the first time slot is the time slot format indication information of the first subband and the third subband, and the time slot format indication information corresponding to the first subband
  • the time slot format indication information corresponding to the two time slots is the time slot format indication information of the second subband; or, in the time slot format indication information corresponding to every N time slots in the time slot combination configuration information, when N is 3 , the time slot format indication information corresponding to the first time slot is the time slot format indication information of the first subband, and the time slot format indication information corresponding
  • a specific method of dynamically notifying the time slot format of the full-duplex time slot is given.
  • the terminal device when reading sequentially, can obtain the time slot formats of different subbands of a full-duplex time slot in the shortest time, thereby reducing the time for the terminal device to determine the current full-duplex time slot. The time required for the transfer direction.
  • the terminal device can sequentially acquire time slot information of different subbands of the subsequent full-duplex time slot in the shortest time, thereby reducing the time required for the terminal device to determine the transmission direction of the subsequent full-duplex time slot.
  • the number of time slots corresponding to the time slot combination configuration information is M, and when N is 2, the number of time slots from the first time slot to the M/2th time slot
  • the time slot format indication information is the time slot format indication information of the first subband, and the time slot format indication information corresponding to the M/2+1th time slot to the Mth time slot is the time slot format indication information of the second subband information; or, the number of time slots corresponding to the time slot combination configuration information is M, and when N is 3, the time slot format indication information from the first time slot to the M/2th time slot is the first subband and
  • the time slot format indication information of the third subband, the time slot format indication information corresponding to the M/2+1th time slot to the Mth time slot is the time slot format indication information of the second subband.
  • time slot combination configuration information is received, and the time slot combination configuration information is that the base station configures subband full-duplex through radio resource control RRC signaling; or, the time slot The combination configuration information is configured by the base station through RRC signaling.
  • the time slot combination configuration information includes two parts, the first part is configured for non-subband full-duplex, and the second part is configured for sub-band full-duplex.
  • the timeslot format indication information is a group common downlink control message DCI.
  • a communication device is provided, and the device is configured to execute the method provided in the first aspect or the third aspect or the fifth aspect or the sixth aspect.
  • the device may include a device for implementing the first aspect or the third aspect or the fifth aspect or the sixth aspect and any possible implementation manner of the first aspect or the third aspect or the fifth aspect or the sixth aspect A unit and/or module of a method, such as a processing unit and/or a communication unit.
  • the apparatus is a terminal device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the apparatus is a chip, a chip system, or a circuit used in a terminal device.
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit etc.
  • the processing unit may be at least one processor, processing circuit or logic circuit and the like.
  • a communication device is provided, and the device is configured to execute the method provided in the second aspect or the fourth aspect.
  • the device may include a unit and/or module for performing the method in the second aspect or the fourth aspect and any possible implementation manner of the second aspect or the fourth aspect, such as a processing unit and/or a communication unit .
  • the apparatus is a network device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the apparatus is a chip, a chip system or a circuit used in a network device.
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit etc.
  • the processing unit may be at least one processor, processing circuit or logic circuit and the like.
  • a communication device includes: including at least one processor, the at least one processor is coupled to at least one memory, the at least one memory is used to store computer programs or instructions, and the at least one processor is used to read from the at least one memory Invoking and running the computer program or instruction, so that the communication device executes the first aspect or the third aspect or the fifth aspect or the sixth aspect and any one of the first aspect or the third aspect or the fifth aspect or the sixth aspect may method in the implementation.
  • the apparatus is a terminal device.
  • the apparatus is a chip, a chip system, or a circuit used in a terminal device.
  • a communication device in a tenth aspect, includes: at least one processor, the at least one processor is coupled to at least one memory, the at least one memory is used to store computer programs or instructions, and the at least one processor is used to read from the at least one memory
  • the computer program or instruction is invoked and executed in the communication device, so that the communication device executes the method in any possible implementation manner of the second aspect or the fourth aspect and the second aspect or the fourth aspect.
  • the apparatus is a network device.
  • the apparatus is a chip, a chip system or a circuit used in a network device.
  • the present application provides a processor configured to execute the methods provided in the foregoing aspects.
  • the processor's output and reception, input and other operations can also be understood as the sending and receiving operations performed by the radio frequency circuit and the antenna, which is not limited in this application.
  • a computer-readable storage medium stores program code for execution by a device, and the program code includes a program code for executing the first aspect or the second aspect or the third aspect or the first aspect
  • a computer program product containing instructions.
  • the computer program product When the computer program product is run on a computer, the computer executes the first aspect or the second aspect or the third aspect or the fourth aspect or the fifth aspect or The sixth aspect and the method in any possible implementation manner of the first aspect or the second aspect or the third aspect or the fourth aspect or the fifth aspect or the sixth aspect.
  • a fourteenth aspect provides a chip, the chip includes a processor and a communication interface, the processor reads the instructions stored in the memory through the communication interface, and executes the first aspect or the second aspect or the third aspect or the fourth aspect or the first aspect
  • the fifth aspect or the sixth aspect and the method in any possible implementation manner of the first aspect or the second aspect or the third aspect or the fourth aspect or the fifth aspect or the sixth aspect.
  • the chip further includes a memory, in which computer programs or instructions are stored, and the processor is used to execute the computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, the processor is used to execute Any of the first aspect or the second aspect or the third aspect or the fourth aspect or the fifth aspect or the sixth aspect and the first aspect or the second aspect or the third aspect or the fourth aspect or the fifth aspect or the sixth aspect A method in one possible implementation.
  • a communication system includes the communication devices shown in the ninth aspect and the tenth aspect.
  • Fig. 1 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a time-frequency schematic diagram of full duplex.
  • Fig. 3 is a schematic flow chart of a communication method proposed in this application.
  • Fig. 4 is a schematic diagram of a first carrier including 2 subbands on a full-duplex time slot.
  • Fig. 5 is a schematic diagram of a first carrier including 3 subbands on a full-duplex time slot.
  • Fig. 6 is a schematic flow chart of another communication method proposed in this application.
  • Fig. 7 is a schematic diagram of a first time slot format combination.
  • Fig. 8 is a schematic diagram of slot format combinations in a non-SBFD system.
  • FIG. 9A is a schematic diagram of respectively determining the time slot formats of the two subbands of the first carrier in the first time window for every two adjacent time slot formats in the first time slot format combination.
  • FIG. 9B is a schematic diagram of respectively determining the time slot formats of the 3 subbands of the first carrier in the first time window for every two adjacent time slot formats in the first time slot format combination.
  • FIG. 9C is a schematic diagram of respectively determining the time slot format of 3 subbands of the first carrier in the first time window for every three adjacent time slot formats in the first time slot format combination.
  • FIG. 10A is a schematic diagram of timeslot formats indicating two subbands of the first carrier in M/2 time units after the M timeslot formats in the first time slot format combination are equally divided into two.
  • FIG. 10B is a schematic diagram of timeslot formats indicating three subbands of the first carrier in M/2 time units after the M timeslot formats in the first timeslot format combination are equally divided by 2.
  • FIG. 10C is a schematic diagram of timeslot formats indicating three subbands of the first carrier in M/3 time units after the M timeslot formats in the first timeslot format combination are equally divided into three.
  • Fig. 11 is a schematic block diagram of a communication device 1000 provided in this application.
  • FIG. 12 is a schematic structural diagram of a communication device 10 provided by the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, for example, the fifth generation (5th generation, 5G), new radio (new radio, NR), long term evolution (long term evolution, LTE), Internet of Things (Internet of Things) of things, IoT), wireless-fidelity (Wireless-fidelity, WiFi), wireless communication related to the 3rd generation partnership project (3GPP), or other wireless communication that may appear in the future, etc.
  • 5G fifth generation
  • new radio new radio
  • long term evolution long term evolution
  • LTE long term evolution
  • Internet of Things Internet of Things
  • IoT Internet of Things
  • WiFi wireless-fidelity
  • 3GPP 3rd generation partnership project
  • Fig. 2 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • the communication system includes at least one network device and multiple terminal devices.
  • the network device and the terminal device in the communication system can communicate through wireless links, and then exchange information. It can be understood that network devices and terminal devices may also be referred to as communication devices.
  • a network device is a network-side device with a wireless transceiver function.
  • the network device may be a device that provides a wireless communication function for a terminal device in a radio access network (radio access network, RAN), and is called a RAN device.
  • radio access network radio access network
  • the network device may be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system, a base station in the subsequent evolution of 3GPP, a sending and receiving point ( transmission reception point, TRP), access nodes in the WiFi system, wireless relay nodes, wireless backhaul nodes, macro or micro base stations, high frequency base stations, LTE macro base stations or LTE micro base stations, etc.
  • the names of devices with base station functions may be different.
  • a network device may contain one or more co-sited or non-co-sited sending and receiving points.
  • the network device may include one or more centralized units (central unit, CU), one or more distributed units (distributed unit, DU), or one or more CUs and one or more DUs.
  • the function of the CU may be implemented by one entity or different entities.
  • the function of the CU is further divided, that is, the control plane and the user plane are separated and realized by different entities, which are the control plane CU entity (ie, the CU-CP entity) and the user plane CU entity (ie, the CU-UP entity).
  • the CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the functions of the access network equipment.
  • the CU is responsible for processing non-real-time protocols and services, and realizing the functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer.
  • radio resource control radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, media access control (media access control, MAC) layer and physical (physical, PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical (physical, PHY) layer.
  • network functional entities may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (for example, a cloud platform).
  • the network device may also include an active antenna unit (active antenna unit, AAU for short).
  • the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas.
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • the access network device may be a road side unit (RSU).
  • Multiple access network devices in the communication system may be base stations of the same type, or base stations of different types.
  • the base station can communicate with the terminal equipment, and can also communicate with the terminal equipment through the relay station.
  • the device for implementing the function of the network device may be the network device itself, or a device capable of supporting the network device to realize the function, such as a chip system or a combined device or component that can realize the function of the access network device,
  • the device can be installed in network equipment.
  • the system-on-a-chip may be composed of chips, and may also include chips and other discrete devices.
  • a network device is taken as an example to describe the technical solution.
  • a terminal device is a user-side device with a wireless transceiver function, which can be a fixed device, a mobile device, a handheld device (such as a mobile phone), a wearable device, a vehicle-mounted device, or a wireless device built into the above-mentioned devices (such as a communication module , modem, or chip system, etc.).
  • Terminal devices are used to connect people, things, machines, etc., and can be widely used in various scenarios, such as: cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine/machine class Communication (machine-to-machine/machine-type communications, M2M/MTC) communication, Internet of Things, virtual reality (virtual reality, VR), augmented reality (augmented reality, AR), industrial control (industrial control), driverless (self driving), remote medical, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, drones, robots and other scenarios.
  • D2D device-to-device
  • V2X machine-to-machine/machine class Communication
  • M2M/MTC machine-to-machine/machine-type communications
  • M2M/MTC machine-to-machine/machine-type communications
  • Internet of Things Internet of Things
  • virtual reality virtual reality
  • VR augmented reality
  • AR augmented reality
  • industrial control industrial control
  • driverless self driving
  • the terminal device may be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a monitoring camera in smart transportation and smart city, or a communication device on a drone, etc.
  • Terminal equipment may sometimes be referred to as user equipment (UE), user terminal, user device, subscriber unit, subscriber station, terminal, access terminal, access station, UE station, remote station, mobile device, or wireless communication device, etc. wait.
  • the device used to realize the function of the terminal device may be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system or a combined device or component that can realize the function of the terminal device. Can be installed in terminal equipment.
  • a terminal device is used as an example in this application for description.
  • Figure 2 is only an exemplary framework, and the number of nodes included in Figure 2 is not limited, and in addition to the functional nodes shown in Figure 2, other nodes may also be included, such as: core network equipment, gateway equipment , application server, etc., which are not limited in this application.
  • the network device can group multiple terminal devices according to the interference between terminal devices. Terminals with less interference are divided into another group as matching pairs. For example, as shown in Figure 2, the interference between terminal 1 and terminal 2 is small, the interference between terminal 3 and terminal 4 is small, the interference between terminal 1 and terminal 3 is relatively large, and the interference between terminal 2 and terminal 4 is relatively large , terminal 1 and terminal 3 are classified into the same group #1, and terminal 2 and terminal 4 are classified into the same group #2, wherein the terminals of the same group can use different transmission directions to transmit data at the same time.
  • the network device can group multiple terminals according to service conditions, for example: among multiple terminals, terminals that need to transmit downlink services are divided into groups with heavy downlink services, and terminals that need to transmit uplink services are divided into groups with heavy uplink services Among them, terminals in different groups can use different transmission directions to transmit data at the same time.
  • the transmission direction may be an uplink (uplink, UL) transmission direction (referred to as uplink transmission (U)) or a downlink (downlink, DL) transmission direction (referred to as downlink transmission (D)), and the uplink transmission direction may refer to:
  • the data transmission direction from the terminal device to the network device, the downlink transmission direction may refer to: the data transmission direction from the network device to the terminal device.
  • time-domain symbol which can also be called Orthogonal Frequency Division Multiplexing (OFDM) symbol. It should be noted that the time domain symbol can also be named in combination with other multiple access methods, which is not limited in this embodiment of the present application. For different subcarrier spacings, the time-domain symbol lengths may be different.
  • OFDM Orthogonal Frequency Division Multiplexing
  • Time unit the time unit may be a slot, or a symbol, or a subframe, or a frame, or a mini-subframe, or a mini-slot, which is not limited in this application.
  • Subband is a part of a frequency band in a carrier, that is, one or more physical resource blocks (physical resource blocks, PRBs) in the frequency domain.
  • PRBs physical resource blocks
  • Non-full-duplex time slot each symbol in all the symbols contained in the non-full-duplex time slot has only one transmission direction.
  • all the symbols in the non-full-duplex time slot are downlink symbols, or all the symbols in the non-full-duplex time slot are uplink symbols, or part of the symbols in the non-full-duplex time slot are downlink symbols and part are uplink symbols, or, symbols in a non-full-duplex time slot are partly downlink symbols, partly uplink symbols and partly flexible symbols, or, symbols in a non-full-duplex time slot are partly downlink symbols and partly flexible symbols , or, part of the symbols in the non-full-duplex time slot are uplink symbols and part of them are flexible symbols.
  • Full-duplex time slot The time-frequency division of a typical SBFD scheme is shown in Figure 2, where the horizontal axis represents the time domain, and the vertical axis represents the frequency domain.
  • the two long squares filled with left slashes in Figure 2 Each represents a group of time-frequency resources for downlink data and/or control information transmission, and the long squares filled with vertical bars represent a group of time-frequency resources for uplink data and/or control information transmission.
  • These three time-frequency resources The time slots in the time domain range are called full duplex (FD) time slots, and the long squares filled with right slashes represent a group of time-frequency resources used for uplink data or control information transmission. Domain ranges are called upstream slots.
  • one carrier includes a first subband and a second subband, and the transmission directions of the first subband and the second subband are different.
  • the first subband and the second subband do not overlap, partially overlap or completely overlap in the frequency domain.
  • subbands may also be understood as frequency domain resources.
  • the first subband and the second subband refer to two types of subbands with different transmission directions, and it does not mean that one carrier only includes two subbands.
  • one carrier may include N subbands, where N is an integer greater than or equal to 2.
  • the first carrier in the full-duplex time slot, in the first time slot, includes at least two subbands.
  • the transmission directions of at least two subbands in the first carrier are different.
  • the first carrier includes subband #1 and subband #2, where the transmission directions of subband #1 and subband #2 are different.
  • the first carrier includes subband #1, subband #2, and subband #3, wherein the transmission directions of subband #1 and subband #3 are the same, and the transmission direction of subband #2 is different from that of subband #1.
  • the transmission direction of a symbol in the time slot configuration can only be downlink or uplink or flexible.
  • a time slot includes 14 symbols
  • the network device indicates that the time slot ratio of the time slot is DDDDDDDDUDDDUD
  • the terminal device determines that the transmission directions of the 14 symbols of the time slot are DDDDDDDDUDDDUD according to the indication information. That is to say, according to this method, the terminal equipment determines that the transmission direction of each symbol in a time slot is unique.
  • network devices can use different subbands for uplink transmission and downlink transmission to realize both reception and transmission on certain symbols in a full-duplex time slot, that is, certain symbols in a full-duplex time slot
  • the transmission direction of the symbol is not unique, therefore, the current time slot configuration indication method cannot be applied to the full-duplex time slot.
  • the present application proposes a communication method that can effectively indicate the time slot ratio of full-duplex time slots.
  • the communication method proposed in this application will be described in detail below.
  • Fig. 3 is a schematic flow chart of a communication method proposed in this application.
  • a network device determines a transmission scheme of a first carrier in a first time unit.
  • Determining the transmission scheme of the first carrier in the first time unit is to determine whether the first time unit is full-duplex or non-full-duplex, and when the first time is determined to be a full-duplex time unit, the first time of the first carrier The transmission direction of each symbol in the first time unit on the subband and the second subband.
  • the network device notifies the terminal device of the transmission scheme, and performs S302 and S303.
  • the network device sends first information to the terminal device, where the first information indicates a duplex type of the first time unit, and the duplex type includes full duplex and non-full duplex.
  • the terminal device receives the first information from the network device.
  • the non-full-duplex time slot is for a carrier (carrier) or a cell (cell), not for a part of subbands in a carrier or a cell.
  • a carrier carrier
  • cell cell
  • all subbands included in a carrier have the same transmission direction.
  • the first information indicating the duplex type of the first time unit can also be understood as: the first information indicates that the first time unit is a full-duplex time unit or a non-full-duplex time unit, or the first information indicates the first time unit
  • the duplex type is full duplex or non-full duplex, and the two descriptions in the following text can replace each other.
  • the first information indicates that the duplex type of the first time unit is full duplex or non-full duplex, which may be an explicit indication or an implicit indication.
  • the first information display indicates that the duplex type of the first time unit is full duplex or non-full duplex.
  • the first indication information occupies 1 bit (bit). When the 1 bit is 0, it indicates that the first time slot is a non-full-duplex time unit; when the 1 bit is 1, it indicates that the first time slot is a full-duplex time unit. .
  • bit When the 1 bit is 0, it indicates that the first time slot is a non-full-duplex time unit; when the 1 bit is 1, it indicates that the first time slot is a full-duplex time unit.
  • the reverse is also possible.
  • the network device sends second information to the terminal device, where the second information indicates a transmission direction of the first time unit.
  • the terminal device receives the second information from the network device.
  • the second information indicates the transmission direction of the symbols included in the first time unit.
  • the symbols contained in the first time unit are all downlink symbols, or all uplink symbols, or partly downlink symbols and part uplink symbols, or partly downlink symbols and part uplink symbols and partly flexible
  • a symbol is either partly a downlink symbol and partly a flexible symbol, or partly an uplink symbol and partly a flexible symbol.
  • the terminal device determines the transmission direction of the first carrier in the first time unit according to the first information and the second information.
  • the terminal device determines the transmission direction of at least one subband in the first carrier in the first time unit according to the first information and the second information. It should be understood that when the first information indicates that the first time unit is a part-time unit, in the first time unit, all frequency domain resources of the first carrier only correspond to one transmission direction.
  • the terminal device determines the transmission direction of the first carrier in the first time unit according to the first information and the second information, which can also be described as: terminal The device determines the transmission direction of the symbols of the first time unit on at least one subband in the first carrier according to the first information and the second information, and the two description manners may be replaced with each other.
  • the first subband of the first carrier is a subband for downlink transmission
  • the second subband of the first carrier is a subband for uplink transmission as an example for illustration.
  • the first carrier is the frequency domain resources corresponding to the three rectangles on the left shown in Figure 1
  • the frequency domain resources corresponding to the two rectangles filled with left slashes are the first subband
  • the first subband is used for
  • the frequency domain resource corresponding to the rectangle filled with vertical bars in the three rectangles on the left is the second subband
  • the second subband is the subband for uplink transmission.
  • time domain resources corresponding to the two rectangles filled with left slashes may also contain flexible symbols or uplink symbols; similarly, the second subband is the subband used for uplink transmission, but in the left three rectangles
  • the time-domain resources corresponding to the rectangles filled with vertical bars may also contain flexible symbols or downlink symbols.
  • the terminal device determines the transmission direction of the first carrier in the first time unit according to the first information and the second information, including:
  • the terminal device determines that the transmission direction of the first carrier is the transmission direction indicated by the second information.
  • the first time unit is the first time slot
  • the first information indicates that the first time slot is a non-full-duplex time slot
  • the second indication information indicates that the transmission direction of 14 symbols in the first time slot is DDDDDDDDUDDDUD in turn
  • the terminal device determines that on the 14 symbols of the first time slot, the transmission direction of the first carrier is DDDDDDDDUDDDUD in sequence. It can also be understood that the terminal device determines that on the first carrier, the transmission directions of the 14 symbols in the first time unit are DDDDDDDDUDDDUD in sequence.
  • the terminal device determines that on the first time unit, the transmission direction of the first subband in the first carrier is the transmission direction indicated by the second information. Wherein, on all or part of the symbols included in the first time unit, the transmission direction of the first subband is opposite to the transmission direction of the second subband.
  • the terminal device determines that in the first time unit, the transmission direction of the second subband in the first carrier is not the transmission direction indicated by the second information.
  • the network device does not directly indicate the transmission direction of the second subband
  • the transmission direction of the second subband in the first carrier determined by the terminal device and the transmission direction of the second subband in the transmission scheme determined by the network device must be the same Therefore, before determining the transmission direction of the second subband, the terminal device needs to use the same rule as the network device to interpret the transmission direction of the second subband.
  • the terminal device determines that on all symbols in the first time unit, the transmission direction of the second subband in the first carrier is uplink.
  • the terminal device determines that the transmission direction of the second subband is flexible in some symbols of the first time unit and that the transmission direction of the second subband is uplink in the remaining symbols. In this manner, the number of partial symbols or remaining partial symbols may be pre-configured.
  • the pre-configuration is configured through RRC signaling or pre-set in the terminal device and the network device.
  • the terminal device determines that on the downlink symbols included in the first time unit, the transmission direction of the first subband is opposite to the transmission direction of the second subband.
  • the first time unit is the first time slot
  • the first information indicates that the first time slot is a full-duplex time slot
  • the second indication information indicates that the transmission direction of 14 symbols in the first time slot is DDFDDDDDDUDDDUD
  • the terminal device determines that on the 14 symbols of the first time slot, the transmission direction of the first subband of the first carrier is DDFDDDDDDUDDDUD
  • the transmission direction of the second subband of the first carrier is UUFUUUUUUUUUUUUUUUU.
  • the terminal device determines that on the first subband, the transmission direction of the 14 symbols in the first time unit is DDFDDDDDDUDDDUD in sequence, and on the second subband of the first carrier, the transmission directions of the 14 symbols in the first time unit are sequentially For UUFUUUUUUUUUUUUUU.
  • the terminal device determines that on the flexible symbols included in the first time unit, the transmission direction of the first subband is flexible, and the transmission direction of the second subband is flexible or uplink.
  • the first time unit is the first time slot
  • the first information indicates that the first time slot is a full-duplex time slot
  • the second indication information indicates that the transmission direction of 14 symbols in the first time slot is DDDDDDDDUFFDUD in sequence
  • the terminal device determines that on the 14 symbols of the first time slot, the transmission direction of the first subband of the first carrier is DDDDDDDDUFFDUD in sequence
  • the transmission direction of the second subband of the first carrier is UUUUUUUUUUUUUUUUUUUUUU in sequence
  • the The transmission direction of the second subband is UUUUUUUUUFFUUU in sequence
  • the transmission direction of the second subband of the first carrier is FFUUUUUUUUUUUUUUU in sequence.
  • the terminal device uses the first information and the second information on the time slot receiving the first information to configure the time slot format for the time slot.
  • the terminal device uses the first information and the second information to configure the time slot format on the time slot after receiving the first information P time slots.
  • the terminal device when determining the transmission direction of each subband in the first carrier, the terminal device needs to first determine which subbands are the first subband and which are the second subband, that is, the terminal device needs to know The location of the first subband and the second subband.
  • the network device may directly indicate the positions of the first subband and the second subband in the first carrier to the terminal device.
  • the network device may indicate to the terminal device the ratio of the first subband to the second subband in the first carrier (hereinafter simply referred to as "subband ratio"), the terminal device may determine the positions of the first subband and the second subband in the first carrier according to the subband ratio of the first carrier.
  • subband ratio the ratio of the first subband to the second subband in the first carrier
  • first subband and the second subband in the first carrier do not overlap, in practice, a part of the guard bandwidth needs to be reserved between the first subband and the second subband of the first carrier, so that Respond to interference caused by transmissions from network equipment on reception.
  • This kind of interference is also called self-interference, or adjacent frequency leakage, or adjacent channel leakage (adjacent channel leakage), which is a kind of interference blocking.
  • the guard bandwidth is k PRBs, that is, k PRBs are separated between the first subband and the second subband.
  • the PRB may also be a PRB group.
  • the subband ratio of the first carrier may be pre-configured, or specified by a protocol. That is, the subband ratio of the first carrier can be flexibly configured or fixed.
  • the network device may send third information to the terminal device, where the third information is used to indicate the subband ratio of the first carrier.
  • the terminal device receives third information from the network device, and determines the positions of the uplink subband and the downlink subband of the first carrier according to the third information.
  • the first carrier as CC#1 shown in FIG. 4 and the first time unit as time slot #1 shown in FIG. 4 as an example, where time slot #1 is a full-duplex time slot, and CC#1 Including sub-band #1 and sub-band #2, sub-band #1 is the first sub-band, sub-band #2 is the second sub-band, wherein the starting frequency of sub-band #1 is the frequency band occupied by the first carrier The lowest frequency point of , there is a guard bandwidth between subband #1 and subband #2.
  • the terminal device subtracts the guard bandwidth for coping with self-interference from the bandwidth of CC#1, and calculates the bandwidth occupied by subband #1 and subband #2 in the remaining bandwidth according to the subband ratio X:Y.
  • the terminal device determines the position of subband #1 and the corresponding frequency domain resource according to the bandwidth occupied by subband #1.
  • the terminal device determines the starting position of the subband #2 by adding a guard bandwidth to the end of the frequency domain resource occupied by the subband #1. Further, the frequency domain resource corresponding to the subband #2 is determined according to the bandwidth occupied by the subband #2.
  • the starting frequency point of the sub-band #1 may also be the highest frequency point of the frequency band occupied by the first carrier, and the above is only an example and does not constitute a limitation.
  • time slot #1 is a full-duplex time slot
  • CC#1 includes sub-band #1, sub-band #2 and sub-band #3
  • sub-band #1 and sub-band #3 are the first sub-band
  • sub-band #2 is the second sub-band
  • the start frequency of sub-band #1 Point is the lowest frequency point of the frequency band occupied by CC#1
  • subband #2 is located between subband #1 and subband #3
  • subband #2 and subband #2 There is guard bandwidth between #3.
  • the terminal equipment subtracts two guard bandwidths used to deal with self-interference from the bandwidth of CC#1, and calculates subband #1 and subband #2 in the remaining bandwidth according to the subband ratio X:Y:Z and the bandwidth occupied by subband #3. Starting from the lowest frequency point of the frequency band occupied by CC#1, the terminal device determines the position of subband #1 and the corresponding frequency domain resource according to the bandwidth occupied by subband #1.
  • the terminal device determines the starting position of the subband #2 by adding a guard bandwidth to the end of the frequency domain resource occupied by the subband #1. Further, the frequency domain resource corresponding to the subband #2 is determined according to the bandwidth occupied by the subband #2. The terminal device determines the starting position of subband #3 by adding a guard bandwidth to the end of the frequency domain resource occupied by subband #2. Further, the frequency domain resource corresponding to the subband #3 is determined according to the bandwidth occupied by the subband #3.
  • the starting frequency point of the sub-band #1 may also be the highest frequency point of the frequency band occupied by the first carrier, and the above is only an example and does not constitute a limitation.
  • the first information further indicates the subband ratio of the first carrier.
  • the first indication information occupies M bits, one of the 2 M states corresponding to the M bits indicates that the first time unit is a non-full-duplex time unit, and each of the remaining states in the 2 M states indicates A state respectively indicates a subband ratio of a first carrier, and M is an integer greater than 2.
  • the first indication information occupies 2 bits. When the 2 bits are 00, it means that the first time unit is a non-full-duplex time unit. When the 2 bits of information are 01, 10 and 11, they indicate different subbands of the first carrier respectively.
  • the 2-bit information when the 2-bit information is 01, 10 and 11, it implicitly indicates that the first time unit is a full-duplex time unit. That is, the first information implicitly indicates that the duplex type of the first time unit is full duplex through the subband ratio of the first carrier.
  • the first information may be time division duplex-downlink-uplink-configuration dedicated TDD-UL-DL-configuration-dedicated signaling, or may be a newly added system information block (system information block, SIB ).
  • SIB system information block
  • the network device may directly indicate the transmission direction of the first subband and the second subband of the first carrier in the first time unit, so that, compared with the method shown in FIG. 3 , it is not necessary to introduce Determine the judgment logic of the transmission direction of the second sub-band, thereby saving energy consumption of the terminal equipment and reducing time delay.
  • the technical solution shown in Figure 3 can combine the time slot ratio indicated by dedicated/dedicated signaling in the existing 5G system, and indicate a full-duplex time slot with a variable sub-band ratio through the minimum number of bits
  • the ratio of time slots can save signaling overhead.
  • the above technical solution also effectively reduces the signaling cost.
  • the present application provides another communication method, which can also effectively indicate the time slot ratio of the full-duplex time slot.
  • Fig. 6 is a schematic flow chart of another communication method proposed in this application.
  • the network device sends fourth information to the terminal device.
  • the fourth information includes N SFIs, the first SFI is one of the N SFIs, the first SFI indicates a combination of M timeslot formats, and the M timeslot formats
  • the first time slot format indicates the time slot format of the first resource, and the first resource is located in the first time unit and the first subband included in the first carrier, where the first time unit is a full-duplex time unit, and both N and M is a positive integer.
  • the terminal device receives fourth information from the network device.
  • the first resource is a time-frequency resource that occupies at least one symbol in the time domain and at least one PRB in the frequency domain.
  • the first time slot format indicates the time slot format of the first resource, and the first resource is located in the first time unit and the first subband included in the first carrier, which may also be described as: the first time slot format indicates the On a time unit, the time slot format of the first subband included in the first carrier, or, the first time slot format indicates the time slot format of the first time unit on the first subband of the first carrier, the above description can be replace each other.
  • the N SFIs may respectively correspond to N carriers, or N cells (cells).
  • the N SFIs may also correspond to the N subbands respectively.
  • a slot format includes the transmission direction of 14 symbols; when an extended cyclic prefix (extended cyclic prefix, ECP) , the transmission direction of 12 symbols is included in a slot format.
  • a slot format may be: DDDDDDDDUDDDUD.
  • this application may also refer to the combination of M slot formats indicated by the first SFI as the first slot format combination, that is, the first slot format combination includes M slot formats, and the two descriptions may be mutually exclusive. replace.
  • a schematic diagram of the first time slot format combination is shown in FIG. 7 .
  • the network device also needs to inform the terminal device that the first time slot format combination corresponding to the first SFI is Combination of slot formats for full-duplex time units.
  • the network device configures an SFI for the terminal device through the physical downlink control channel (PDCCH).
  • the PDCCH DCI format carrying the SFI is DCI format 2_0, and the DCI cyclic redundancy check (cyclic redundancy check)
  • the redundancy check (CRC) is scrambled by the radio network temporary identifier (RNTI) corresponding to the SFI (that is, the SFI-RNTI), and the terminal device determines when to use it in Table 1 corresponding to the SFI-RNTI according to the received SFI gap format combination.
  • RNTI radio network temporary identifier
  • Table 1 includes 512 slot format combinations, and the index range corresponding to the 512 slot format combinations is 0 to 511, and each slot format combination includes at most 256 slot formats, that is, one There are no more than 256 slot formats in a slot format combination.
  • the terminal device determines that the slot format corresponding to the SFI is the slot format combination with the index 10 in Table 1. The following will continue to introduce several possible implementation modes given in this application.
  • a table 2 is newly defined, and the table 2 includes at least one time slot format combination for full-duplex time slots, and each time slot format combination in the at least one time slot format combination includes at least one time slot format.
  • Table 2 may correspond to a new FD-SFI-RNTI.
  • the implementation of method 1 can be as follows: the fourth information can be DCI, and the CRC of the DCI is scrambled by a new FD-SFI-RNTI, so that the terminal device can determine according to Table 2 corresponding to the new FD-SFI-RNTI The slot format combination corresponding to the first SFI.
  • the FD-SFI-RNTI may also be SBFD-SFI-RNTI or other names, which are not limited in this application.
  • time slot format combinations in Table 1 are used for non-full-duplex time slots, and the index number in Table 1 is m+1
  • a slot format combination of ⁇ 511 is used for full-duplex slots.
  • m is configured or predefined by high-layer signaling.
  • high layer signaling can be understood as RRC signaling or MAC signaling.
  • the RRC signaling or MAC signaling is sent by the network device to the terminal device.
  • the implementation of the second method can be as follows: the fourth information can be DCI, the CRC of the DCI is still scrambled by the SFI-RNTI corresponding to Table 1, and the network device configures the first time slot format indicated by the first SFI as Table 1 Any time slot format combination among the time slot format combinations whose index numbers are m+1-511.
  • Table 1 is added to X slot format combinations based on the original 512 slot format combinations, where X is an integer greater than 512. Among them, the time slot format combinations with index numbers 0 to 511 in Table 1 are still used for non-full-duplex time slots, and the time slot format combinations with index numbers 512 to X-1 in Table 1 are used for full-duplex time slots .
  • the implementation of mode three can be as follows: the fourth information can be DCI, the CRC of the DCI is still scrambled by the SFI-RNTI corresponding to Table 1, and the network device configures the first time slot format indicated by the first SFI as Table 1 Any time slot format combination among the time slot format combinations whose index numbers are 512 to X-1.
  • the tables in the above-mentioned ways 1 to 3 may also be in a set or other forms, which is not limited in this application.
  • the index numbers of the tables in the above ways 1 to 3 may also start from 1, which is not limited in this application.
  • the terminal device determines a transmission direction on the first resource according to the first SFI.
  • the terminal device determining the transmission direction on the first resource according to the first SFI may also be described as: the terminal device determines the time slot format of the first subband in the first time unit according to the first SFI, or, The terminal device determines, according to the first SFI, the time slot format of the first time unit on the first subband of the first carrier, and the above descriptions may be replaced with each other.
  • the terminal device determines the slot format of the first subband in the first time unit according to the first slot format in the first slot format combination indicated by the first SFI.
  • the first time unit is a time slot
  • the transmission direction of the 14 symbols in the first time slot format is: DDDDDDDDUDDDUD
  • the terminal device determines that in this time slot, the time slot format of the first subband is: DDDDDDDDUDDDUD.
  • the time slot format can also be replaced by the transmission direction.
  • the time slot format of the first subband is: DDDDDDDDUDDDUD, which can be described as: in the first time unit, the transmission direction of the first subband is: DDDDDDDDUDDDUD.
  • the first subband here may be a continuous subband, or may be a discontinuous subband.
  • the terminal device determines the time slot of the first subband in the first time unit according to the first SFI
  • the format can also be understood as: the terminal device determines, according to the first SFI, the time slot formats of the Q subbands in the first time unit, where the time slot formats of the Q subbands are the same. That is to say, the first slot format may be used to indicate the slot format of multiple subbands with the same transmission direction but discontinuous in the frequency domain in the first carrier, and the transmission direction in the first carrier is the same but different in the frequency domain. Multiple consecutive subbands have the same symbol direction in the time domain.
  • the first subband includes two discontinuous subbands, namely subband A and subband B
  • the terminal device determines that in the first time unit according to the first time slot format, subband A and the time slot format of subband B, wherein the time slot formats of subband A and subband B are the same.
  • the first time unit includes 7 symbols
  • the transmission direction of the 14 symbols in the first time slot format is: DDDDDDDDDUDDDDUD
  • the time slot format of subband A is: DDDDDDDD
  • the time slot format of band B is also: DDDDDDD
  • the time slot format of subband A is: DUDDDUD
  • the time slot format of subband B is also: DUDDDUD.
  • the first time unit includes 14 symbols
  • the transmission direction of the 14 symbols in the first time slot format is: DDDDDDDDUDDDDUD
  • the time slot format of subband A is: DDDDDDDDUDDDUD
  • the time slot format of subband B is also: DDDDDDDDUDDDUD.
  • the slot formats in the first slot format combination all indicate the slot format of the first subband in the full-duplex time unit.
  • the terminal device or the network device configures all symbols in the first time unit through RRC signaling, and the transmission direction of the second subband is uplink.
  • the first time unit is a time slot
  • the default time slot format of the second subband by the terminal device is: UUUUUUUUUUUUUUUUUUUUUUUUU.
  • the terminal device determines the time slot format of the second subband in the first time unit according to the first time slot format, wherein, on all or part of the symbols included in the first time unit, the transmission of the first subband The direction is opposite to the transmission direction of the second sub-band.
  • the transmission direction of the first subband is downlink
  • the transmission direction of the second subband is uplink.
  • the first time slot format indicates that the time slot format of the time slot is: DDDDDDDDUDDDDUD
  • the time slot format of the first subband is: DDDDDDDDUDDDDUD
  • the first The time slot format of the second subband is: UUUUUUUUUUUUUUUUUUUUUUU.
  • the transmission direction of the first subband is flexible, and the transmission direction of the second subband is flexible or uplink.
  • the first time unit is a time slot
  • the first time slot format indicates that the time slot format of the time slot is: DDDDDDDDDDUFFDUD
  • the time slot format of the first subband is: DDDDDDDDDDUFFDUD
  • the time slot format of the second subband is: UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
  • the time slot format of the second subband is: UUUUUUUUUFFUUU.
  • the network device indicates the time slot format of the second subband on the first time unit by using the second time slot format in the first time slot format combination.
  • the terminal device determines the time slot format of the first resource according to the second time slot format.
  • the first slot format and the second slot format are adjacent slot formats in the first slot format combination.
  • the method for determining the positions of the first subband and the second subband may refer to the description in the embodiment corresponding to FIG. 3 , which will not be repeated here.
  • the network device respectively indicates the time slot formats of at least two subbands of the first carrier in one time unit by using each L time slot formats in the first time slot format combination, where L is a positive integer.
  • each of the L time slot formats is sequentially selected from the M time slot formats of the first time slot format combination. That is, the M slot formats can be divided into L/M groups. When L/M is not an integer, L/M is rounded down to determine the number of groups.
  • L 2
  • the first carrier includes subband #1 and subband #2.
  • Subband #1 is the first subband
  • subband #2 is the second subband.
  • the network device respectively indicates the time slot formats of the subband #1 and the subband #2 of the first carrier in one time unit through every two time slot formats in the first time slot format combination.
  • the former time slot format in every two time slot formats is the time slot format of subband #1
  • the latter time slot format in every two time slot formats is the time slot format of subband #2.
  • the first carrier includes subband #1, subband #2, and subband #3.
  • Subband #1 and subband #3 are the first subband
  • subband #2 is the second subband.
  • the network device respectively indicates the time slot formats of sub-band #1, sub-band #2 and sub-band #3 of the first carrier in a time unit through every two slot formats in the first slot format combination.
  • the previous slot format in every two slot formats is the slot format of subband #1 and subband #3
  • the latter slot format in every two slot formats is the second subband #2 subband format.
  • the slot format of the band is the previous slot format in every two slot formats.
  • the first carrier includes subband #1, subband #2, and subband #3.
  • Subband #1 and subband #3 are the first subband
  • subband #2 is the second subband.
  • the network device indicates the time slot formats of sub-band #1, sub-band #2 and sub-band #3 of the first carrier in a time unit by using every 3 slot formats in the first slot format combination.
  • the first slot format of every three slot formats is the slot format of subband #1
  • the second slot format of every three slot formats is the slot format of the second subband of subband #2.
  • the slot format, the third slot format in every three slot formats is the slot format of the third subband of subband #3.
  • the terminal device respectively determines the time slot formats of at least two subbands of the first carrier in each time unit included in the first time window according to each adjacent L time slot formats in the first time slot format combination , the time unit in the first time window is a full-duplex time unit.
  • the terminal device respectively determines the time slot formats of at least two subbands of the first carrier in each time unit included in the first time window according to each adjacent L time slot formats in the first time slot format combination , the time unit in the first time window is a full-duplex time unit.
  • L may be a network device configuration, or may be predefined.
  • the first method is described with an example below.
  • the first time window that needs to be determined by the terminal device includes 3 full-duplex time slots, namely time slot #1, time slot #2 and time slot #3.
  • the format combination of the first time slot is as shown in FIG. 9A.
  • CC#1 includes subband #1 and subband #2
  • subband #1 is The first subband
  • subband #2 is the second subband.
  • the terminal device can determine the slot format of subband #1 on slot #1 according to slot format 1 in the first slot format combination, and determine the slot format of subband #2 on slot #1 according to slot format 2 time slot format.
  • the terminal device may determine the time slot format of subband #1 on time slot #2 according to time slot format 3, and determine the time slot format of subband #2 on time slot #2 according to time slot format 4. And so on, no more details here.
  • the first time slot format combination is as shown in FIG. 9B.
  • CC#1 includes subband #1, subband #2, and subband #3.
  • Subband #1 and subband #3 are the first subband
  • subband #2 is the second subband.
  • the terminal device may determine the time slot formats of subband #1 and subband #3 on time slot #1 according to time slot format 1 in the first time slot format combination, and determine on time slot #1 according to time slot format 2, Slot format for subband #2.
  • the terminal device can determine the time slot format of subband #1 and subband #3 on time slot #2 according to time slot format 3, and determine the time slot format of subband #2 on time slot #2 according to time slot format 4. slot format. And so on, no more details here.
  • the first time slot format combination is as shown in FIG. 9C.
  • CC#1 includes subband #1, subband #2, and subband #3.
  • Subband #1 and subband #3 are the first subband
  • subband #2 is the second subband.
  • the terminal device can determine the slot format of subband #1 on slot #1 according to slot format 1 in the first slot format combination, and determine the slot format of subband #2 on slot #1 according to slot format 2 According to slot format 3, determine the slot format of subband #3 on slot #1.
  • the terminal device can determine the time slot format of subband #1 on time slot #2 according to time slot format 4, and determine the time slot format of subband #2 on time slot #2 according to time slot format 5.
  • the slot format of subband #3 on slot #2 is determined according to slot format 6. And so on, no more details here.
  • the first carrier includes subband #1 and subband #2.
  • Subband #1 is the first subband
  • subband #2 is the second subband.
  • the network device respectively indicates the time slot format of subband #1 on M/2 time units through the first M/2 time slot formats in the first time slot format combination; and, according to the first time slot format combination
  • the last M/2 slot formats respectively indicate the slot format of the subband #2 in the M/2 time units.
  • the first carrier includes subband #1, subband #2, and subband #3.
  • Subband #1 and subband #3 are the first subband
  • subband #2 is the second subband.
  • the network device respectively indicates the time slot formats of subband #1 and subband #3 on M/2 time units through the first M/2 time slot formats in the first time slot format combination; and, according to the first time slot
  • the last M/2 slot formats in the format combination respectively indicate the slot format of subband #2 in M/2 time units.
  • the first carrier includes subband #1, subband #2, and subband #3.
  • Subband #1 and subband #3 are the first subband
  • subband #2 is the second subband.
  • the network device respectively indicates the time slot format of subband #1 on M/3 time units through the first M/3 time slot formats in the first time slot format combination; and, according to the first time slot format combination located in The middle M/3 slot formats indicate the slot format of subband #2 on M/3 time units, respectively, and, according to the last M/3 slot formats in the first slot format combination, respectively indicate Slot format for subband #3 over M/3 time units.
  • the terminal device determines the transmission directions of different subbands on the first carrier according to the indication manner of the above-mentioned network device, which will not be repeated here.
  • Q may be a configuration of a network device, or may be predefined. M is indicated implicitly according to the number of slot formats corresponding to the first slot format combination.
  • the network configuration is configured through RRC signaling or MAC signaling, or configured through RRC signaling and indicated through DCI.
  • the first time window may be a continuous time unit, or may be a discontinuous time unit.
  • the second method is described with an example below.
  • CC#1 When the first carrier is CC#1 shown in FIG. 10A , CC#1 includes subband #1 and subband #2, subband #1 is the first subband, and subband #2 is the second subband.
  • the terminal device can determine the slot format of subband #1 on slot #1 according to slot format 1, determine the slot format of subband #1 on slot #2 according to slot format 2, and determine the slot format of subband #1 on slot #2 according to slot format 2.
  • Format 3 determines the time slot format of subband #1 on time slot #3; the terminal device can determine the time slot format of subband #2 on time slot #1 according to time slot format 4, and determine according to time slot format 5
  • the time slot format of subband #2 is determined according to time slot format 6, and on time slot #2, the time slot format of subband #3 is determined.
  • CC#1 When the first carrier is CC#1 shown in Figure 10B, CC#1 includes subband #1, subband #2 and subband #3, subband #1 and subband #3 are the first subband, and subband # 2 is the second subband.
  • the terminal device can determine the slot format of subband #1 and subband #3 on slot #1 according to slot format 1, and determine the slot format of subband #1 and subband #3 on slot #2 according to slot format 2 According to slot format 3, determine the slot format of subband #1 and subband #3 on slot #3; terminal equipment can determine the slot format of subband #1 on slot #1 according to slot format 4
  • the time slot format of 2 the time slot format of subband #2 on time slot #2 is determined according to time slot format 5
  • the time slot format of subband #3 on time slot #2 is determined according to time slot format 6.
  • CC#1 includes subband #1 and subband #2, subband #1 is the first subband, and subband #2 is the second subband.
  • the terminal device can determine the time slot format of subband #1 on time slot #1 according to time slot format 1, and determine the time slot format of subband #1 on time slot #2 according to time slot format 2; the terminal device can determine the time slot format of subband #1 on time slot #2 according to time slot format 2; Time slot format 3 determines the time slot format of subband #2 on time slot #1, and determines the time slot format of subband #2 on time slot #2 according to time slot format 4; the terminal device determines the time slot format of subband #2 on time slot format 5 Determine the time slot format of subband #3 on time slot #1, and determine the time slot format of subband #3 on time slot #2 according to time slot format 6.
  • the terminal device rounds down M/Q. Then execute in sequence according to the above methods, which will not be repeated here.
  • the terminal device can obtain the slot format combination corresponding to the SFI by interpreting the SFI, and configure a full-duplex slot according to one or more slot formats in the determined slot format combination.
  • the slot format of the band makes minimum modification to the existing SFI, saves signaling, and realizes the time slot format of dynamically notifying the full-duplex time slot while minimizing the modification of the SFI.
  • sub-band full-duplex operation is used as an example in FIG. 9 and FIG. There are systems with different transmission directions.
  • FIG. 11 is a schematic block diagram of a communication device 1000 provided in this application.
  • the communication device 1000 includes a receiving unit 1100 and a processing unit 1200 .
  • the communication device 1000 can implement the steps or processes corresponding to the execution of the terminal device in the above method embodiments, for example, the communication device 1000 can be a terminal device, or can also be a chip or a circuit configured in the terminal device.
  • the receiving unit 1100 is configured to perform receiving-related operations of the terminal device in the above method embodiments
  • the processing unit 1200 is configured to perform processing-related operations of the terminal device in the above method embodiments.
  • the receiving unit 1100 receives first information from a network device, where the first information indicates a duplex type of a first time unit, and the duplex type includes full-duplex and non-full-duplex; receiving The unit 1100 is further configured to receive second information from the network device, the second information indicating the transmission direction of the first time unit; the processing unit 1200 is further configured to receive the second information according to the first information and the second The information determines the transmission direction of the first carrier in the first time unit.
  • the first information and the first carrier reference may be made to the description in the above embodiment corresponding to FIG. 3 , and details are not repeated here.
  • the processing unit 1200 is specifically configured to determine that the transmission direction of the first subband is the transmission direction indicated by the second information, where, on all or part of the symbols included in the first time unit, the The transmission direction of the first subband is opposite to the transmission direction of the second subband.
  • the second information indicates that the transmission direction of the N symbols in the first time unit is downlink, N is a positive integer, and the processing unit 1200 is specifically configured to determine all symbols included in the first time unit On the N symbols, the transmission direction of the first subband is downlink, and the transmission direction of the second subband is uplink.
  • the receiving unit 1100 is further configured to receive third information from the network device, where the third information indicates the ratio of the first subband to the second subband; the processing unit is further configured to for determining the first subband and the second subband according to the third information.
  • the receiving unit 1100 receives fourth information from a network device, where the fourth information includes N slot format indication SFIs, the first SFI is one of the N SFIs, and the The first SFI indicates a combination of M slot formats, the first slot format of the M slot formats indicates the slot format of the first resource, and the first resource is located in the first time unit and the first carrier
  • the fourth information includes N slot format indication SFIs
  • the first SFI is one of the N SFIs
  • the first SFI indicates a combination of M slot formats
  • the first slot format of the M slot formats indicates the slot format of the first resource
  • the first resource is located in the first time unit and the first carrier
  • the first sub-band included wherein the first time unit is a full-duplex time unit, and both N and M are
  • the communication device 1000 further includes a sending unit 1300 .
  • the sending unit 1300 and the receiving unit 1100 can also be integrated into a transceiver unit, which has both receiving and sending functions, which is not limited here.
  • the sending unit 1300 may be a transmitter, and the receiving unit 1100 may be a receiver. Receiver and transmitter can also be integrated into a transceiver.
  • the processing unit 1200 may be a processing device.
  • the functions of the processing device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the processing device may include a memory and a processor, where the memory is used to store computer programs, and the processor reads and executes the computer programs stored in the memory, so that the communication device 1000 executes the operations and operations performed by the terminal device in each method embodiment. /or processing.
  • the processing means may comprise only a processor, and the memory for storing the computer program is located outside the processing means.
  • the processor is connected to the memory through circuits/wires to read and execute the computer programs stored in the memory.
  • the processing device may be a chip or an integrated circuit.
  • the sending unit 1300 and the receiving unit 1100 may be a communication interface or an interface circuit, for example, the sending unit 1300 is an output interface or an output circuit, the receiving unit 1100 is an input interface or an input circuit.
  • the processing unit 1200 may be a processor or a microprocessor integrated on the chip or integrated circuit. It is not limited here.
  • the communication device 1000 includes a processing unit 1200 and a sending unit 1300 .
  • the communication device 1000 can implement the steps or processes corresponding to the execution of the network device in the above method embodiments, for example, the communication device 1000 can be a network device, or can also be a chip or a circuit configured in the network device.
  • the sending unit 1300 is configured to perform reception-related operations of the network device in the above method embodiments
  • the processing unit 1200 is configured to perform processing-related operations of the network device in the above method embodiments.
  • the sending unit 1300 is configured to send first information to the terminal device, where the first information indicates a duplex type of the first time unit, and the duplex type includes full-duplex and non-full-duplex
  • the sending unit 1300 is further configured to send second information to the terminal device, where the second information indicates the transmission direction of the first time unit.
  • first information and the first carrier reference may be made to the description in the above embodiment corresponding to FIG. 3 , and details are not repeated here.
  • the processing unit 1200 is further configured to determine fourth information, where the fourth information includes N slot format indication SFIs, the first SFI is one of the N SFIs, and the The first SFI indicates a combination of M slot formats, the first slot format of the M slot formats indicates the slot format of the first resource, and the first resource is located in the first time unit and the first carrier
  • the sending unit 1300 is configured to send the fourth information to the terminal device.
  • the communication device 1000 further includes a receiving unit 1100 .
  • the sending unit 1300 and the receiving unit 1100 can also be integrated into a transceiver unit, which has both receiving and sending functions, which is not limited here.
  • the sending unit 1300 may be a transmitter, and the receiving unit 1100 may be a receiver. Receiver and transmitter can also be integrated into a transceiver.
  • the processing unit 1200 may be a processing device.
  • the functions of the processing device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the processing device may include a memory and a processor, where the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory, so that the communication device 1000 performs the operations and operations performed by the network device in each method embodiment. /or processing.
  • the processing means may comprise only a processor, and the memory for storing the computer program is located outside the processing means.
  • the processor is connected to the memory through circuits/wires to read and execute the computer programs stored in the memory.
  • the processing device may be a chip or an integrated circuit.
  • the sending unit 1300 and the receiving unit 1100 may be communication interfaces or interface circuits.
  • the sending unit 1300 is an output interface or an output circuit
  • the receiving unit 1100 is an input interface or an input circuit.
  • the processing unit 1200 may be a processor or a microprocessor integrated on the chip or integrated circuit. It is not limited here.
  • FIG. 12 is a schematic structural diagram of a communication device 10 provided in the present application.
  • the device 10 includes a processor 11, the processor 11 is coupled with a memory 12, the memory 12 is used to store computer programs or instructions and/or data, and the processor 11 is used to execute the computer programs or instructions stored in the memory 12, or to read the memory 12
  • the stored data is used to execute the methods in the above method embodiments.
  • processors 11 there are one or more processors 11 .
  • the memory 12 is integrated with the processor 11, or is set separately.
  • the device 10 further includes a transceiver 13, and the transceiver 13 is used for receiving and/or sending signals.
  • the processor 11 is configured to control the transceiver 13 to receive and/or send signals.
  • the apparatus 10 is used to implement the operations performed by the terminal device in the above method embodiments.
  • the processor 11 is configured to execute computer programs or instructions stored in the memory 12, so as to implement related operations performed by the terminal device in the above method embodiments. For example, implement the method performed by the terminal device in the embodiment shown in FIG. 3 or FIG. 6 .
  • the apparatus 10 is configured to implement the operations performed by the network device in each method embodiment above.
  • the processor 11 is configured to execute computer programs or instructions stored in the memory 12, so as to implement related operations performed by the network device in the foregoing method embodiments. For example, implement the method performed by the network device in the embodiment shown in FIG. 3 or FIG. 6 .
  • the present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on the computer, in each method embodiment of the present application, the terminal device or the network device The action performed and/or the process is performed.
  • the present application also provides a computer program product.
  • the computer program product includes computer program codes or instructions. When the computer program codes or instructions are run on the computer, the operations performed by the terminal device or the network device in each method embodiment of the present application and /or the process is executed.
  • the present application also provides a chip, and the chip includes a processor.
  • the memory used to store the computer program is set independently of the chip, and the processor is used to execute the computer program stored in the memory, so that the operations and/or processes performed by the terminal device or network device in any method embodiment are performed.
  • the chip may further include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit or the like.
  • the chip may further include a memory.
  • the present application also provides a communication system, including the terminal device and the network device in the embodiment of the present application.
  • the processor in the embodiment of the present application may be an integrated circuit chip capable of processing signals.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the processor can be a central processing unit (central processing unit, CPU), or other general-purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuits, ASICs), field programmable Gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the methods disclosed in the embodiments of the present application can be directly implemented by a hardware encoding processor, or implemented by a combination of hardware and software modules in the encoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory can be random access memory (RAM), which acts as external cache memory.
  • RAM static random access memory
  • dynamic RAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory direct rambus RAM, DRRAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components
  • the memory storage module may be integrated in the processor.
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application or a part of the technical solution may be embodied in the form of a software product, the computer software product is stored in a storage medium, and includes several instructions to make a computer device (which may be a personal Computers, servers, or network devices, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.
  • first and second mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority or importance etc.
  • first information and the second information do not indicate the difference in information volume, content, priority or importance.
  • At least one means one or more, and “multiple” means two or more.
  • At least one item or similar expressions refer to one item or multiple items, that is, any combination of these items, including any combination of a single item or plural items.
  • at least one item (piece) of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c.
  • the above is an example of the three elements of A, B and C to illustrate the optional items of the project.
  • the expression is "the project includes at least one of the following: A, B, ..., and X"
  • the applicable entries for this item can also be obtained according to the aforementioned rules.
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  • the character "/" generally indicates that the contextual objects are an "or" relationship.
  • A/B means: A or B.
  • a corresponds to B means that B is associated with A, and B can be determined according to A.
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Abstract

本申请实施例提供了一种通信方法和通信装置。终端设备从网络设备接收第一信息和第二信息,第一信息指示第一时间单元的双工类型,双工类型包括全双工和非全双工,第二信息指示第一时间单元的传输方向,终端设备根据第一信息和第二信息确定在第一时间单元上,第一载波的传输方向。该方案可以有效指示全双工时隙的时隙配比,网络设备在告知终端设备一个时间单元为全双工时间单元后,终端设备就可以根据第二信息确定该全双工时间单元上,第一载波的不同子带的传输方向。该方法可以节省信令开销。

Description

通信方法和通信装置
本申请要求于2022年1月17日提交中国国家知识产权局、申请号为202210050616.4、申请名称为“通信方法和通信装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信领域,更具体地,涉及一种通信方法和通信装置。
背景技术
随着第五代移动通信技术新无线(new radio,NR)的快速发展,出现了多种多样的通信需求,为满足新兴业务的需求,提出了子带全双工(subband full duplex,SBFD)的方案来提升(time division duplex,TDD)系统的上行覆盖性能。全双工是指在TDD系统中,网络设备通过上行传输和下行传输采用不同子带实现在一个时隙或一个正交频分复用(orthogonal frequency division multiplexing,OFDM)符号上既能接收又能发送。在SBFD方案中,一个分量载波(component carrier,CC)被分为多个不重叠的子带,不同子带的传输方向可以不同。
目前,对于非全双工时隙,网络设备指示一个时隙中的一个OFDM符号的传输方向只能为下行或上行或灵活。然而,全双工时隙中某些OFDM符号的传输方向既可以为上行,也可以下行。因此,目前的非全双工时隙的时隙配比指示方式无法适用于全双工时隙。
发明内容
本申请实施例提供一种通信方法和通信装置,可以有效指示全双工时隙的时隙配比。
第一方面,提供了一种通信方法,该方法可以由终端设备执行,或者,也可以由终端设备的组成部件(例如芯片或者电路)执行,对此不作限定,为了便于描述,下面以由终端设备执行为例进行说明。
该方法可以包括:从网络设备接收第一信息,该第一信息指示第一时间单元的双工类型,该双工类型包括全双工和非全双工;从该网络设备接收第二信息,该第二信息指示该第一时间单元的传输方向;根据该第一信息和该第二信息确定在该第一时间单元上,第一载波的传输方向。
可选地,第一信息指示该第一时间单元的双工类型为全双工,终端设备根据第二信息确定在该第一时间单元上,第一载波包括的至少一个子带的传输方向。
应理解,当第一时间单元为全双工时间单元时,根据该第一信息和该第二信息确定在该第一时间单元上,第一载波的传输方向,也可以描述为:根据该第一信息和该第二信息确定第一载波中至少一个子带上的第一时间单元的符号的传输方向。上述描述方式可以相互替换。
本申请中,“确定第一时间单元上,第一载波的传输方向”,也可以理解为:终端设备在接收到第一信息和第二信息之后,直接根据第一信息和第二信息在第一时间单元和第一载波的至少一个子带对应的时频资源上进行相应传输方向的数据信息,控制信息或信号的传输。
可选地,当第一时间单元为非全双工时间单元时,终端设备可以直接根据第二信息指示的传输方向在第一时间单元和第一载波对应的时频资源上进行数据信息,控制信息或信号的传输;当第一时间单元为全双工时间单元时,终端设备根据直接根据第二信息指示的传输方向在第一时间单元和第一载波的至少一个子带对应的时频资源上进行数据信息,控制信息或信号的传输。
上述技术方案中,可以有效指示全双工时隙的时隙配比,节省信令开销。该方案只通过在第一信息中增加一个双工类型的标志位,就可以指示第一载波中用于下行传输的子带上第一时间单元中符号的的传输方向。第一载波中用于上行传输的子带上第一时间单元中符号的传输方向通过结合标志位隐性指示,减少了空口的传输信令。
结合第一方面,在第一方面的某些实现方式中,该第一信息指示该第一时间单元的双工类型为全双工,在该第一时间单元上,该第一载波包括第一子带和第二子带,该第一子带和该第二子带的传输方向不同,其中,该第一子带和该第二子带在频域上不重叠、部分重叠或完全重叠。
需要说的是,第一子带和第二子带是指传输方向不同的两种类型子带,并不表示一个中只包含两个子带。即,一个载波中可以包括N个子带,N为大于或等于2的整数。
本申请中,第一子带和第二子带的传输方向不同,可以理解为:对于该频域上连续或者不连续的多个子带,在时域的至少一个符号上的方向不一致。
结合第一方面,在第一方面的某些实现方式中,该根据该第一信息和该第二信息确定在该第一时间单元上,第一载波的传输方向,包括:确定该第一子带的传输方向为该第二信息指示的传输方向。其中,在该第一时间单元包括的所有或部分符号上,该第一子带的传输方向与该第二子带的传输方向相反。
可以理解,这里的第一子带为第一载波中用于下行传输的子带,第二子带为第一载波中用于上行传输的子带。
上述技术方案中,终端设备根据第二信息进行解析第一载波所含的第一子带的传输方向,第一载波所含的第二子带的传输方向不受第二信息的影响。例如:在第一时间单元上所有符号上,第一载波中第二子带的传输方向为上行,或者,终端设备确定在第一时间单元的部分符号上第二子带的传输方向为灵活以及在剩余的部分符号上第二子带的传输方向为上行。
结合第一方面,在第一方面的某些实现方式中,该第二信息指示该第一时间单元中的N个符号的传输方向为下行,N为正整数,根据第一信息和第二信息确定在该第一时间单元上,第一载波上的传输方向,包括:确定在该第一时间单元包括的该N个符号上,该第一子带的传输方向为下行,该第二子带的传输方向为上行。
上述技术方案中,给出了终端设备确定全双工时间单元上,第一子带和第二子带的传输方向的一种具体方式。
结合第一方面,在第一方面的某些实现方式中,从该网络设备接收第三信息,该第三 信息指示该第一子带和该第二子带所占的比例。根据该第三信息确定该第一子带和该第二子带。
上述技术方案中,给出了一种确定第一子带和第二子带位置的方式,终端设备可以根据第一载波的子带比例确定相应位置的子带的传输方向。通过子带比例调整和指示,可以灵活匹配用户上行业务需求的变化,从而更好地满足用户上行数据传输需求。
结合第一方面,在第一方面的某些实现方式中,该第一信息还指示该第一子带和该第二子带所占的比例。上述技术方案中,给出了一种第一载波的子带比例可变的指示方式。作为示例,第一指示信息占用2bit,当该2bit为00时,表示第一时间单元为非全双工时间单元,当该2bit信息为01、10和11时,分别指示第一载波不同的子带比例,当该2bit信息为01、10和11时,隐含指示了第一时间单元为全双工时间单元。即,第一信息通过第一载波的子带比例隐含指示了第一时间单元的双工类型为全双工。
第二方面,提供了一种通信方法,该方法可以由网络设备执行,或者,也可以由网络设备的组成部件(例如芯片或者电路)执行,对此不作限定,为了便于描述,下面以由网络设备执行为例进行说明。
该方法可以包括:向终端设备发送第一信息,该第一信息指示第一时间单元的双工类型,该双工类型包括全双工和非全双工;向该终端设备发送第二信息,该第二信息指示该第一时间单元的传输方向。
结合第二方面,在第二方面的某些实现方式中,该第一信息指示该第一时间单元的双工类型为全双工,在该第一时间单元上,第一载波包括第一子带和第二子带,该第一子带和该第二子带的传输方向不同,其中,该第一子带和该第二子带在频域上不重叠、部分重叠或完全重叠。
结合第二方面,在第二方面的某些实现方式中,该第一子带的传输方向为该第二信息指示的传输方向。其中,在该第一时间单元包括的所有或部分符号上,该第一子带的传输方向与该第二子带的传输方向相反。
结合第二方面,在第二方面的某些实现方式中,该第二信息指示该第一时间单元中的N个符号的传输方向为下行,在该第一时间单元包括的该N个符号上,该第一子带的传输方向为下行,该第二子带的传输方向为上行。
结合第二方面,在第二方面的某些实现方式中,向该终端设备发送第三信息,该第三信息指示该第一子带和该第二子带所占的比例。
结合第二方面,在第二方面的某些实现方式中,该第一信息还指示该第一子带和该第二子带所占的比例。
关于第二方面的有益效果参见第一方面的描述,这里不再赘述。
第三方面,提供了一种通信方法,该方法可以由终端设备执行,或者,也可以由终端设备的组成部件(例如芯片或者电路)执行,对此不作限定,为了便于描述,下面以由终端设备执行为例进行说明。
该方法包括:从网络设备接收第四信息,该第四信息包括N个时隙格式指示SFI,该第一SFI为该N个SFI中的一个,该第一SFI指示M个时隙格式的组合,该M个时隙格式中的第一时隙格式指示第一资源的时隙格式,该第一资源在时域上位于第一时间单元且在频域上位于第一载波包含的第一子带,其中,该第一时间单元为全双工时间单元,N和 M均为正整数;根据该第一SFI,确定在该第一资源上的传输方向。
应理解,第一时隙格式指示第一资源的时隙格式,第一资源位于第一时间单元和第一载波包含的第一子带,也可以描述为:第一时隙格式指示在第一时间单元上,第一载波包含的第一子带的时隙格式,或,第一时隙格式指示第一载波的第一子带上,第一时间单元的时隙格式,以上描述方式可以相互替换。上述技术方案中,终端设备可以通过解读SFI获取SFI对应的时隙格式组合,并根据SFI对应的时隙格式组合中一个时隙格式确定在全双工时间单元上,第一载波中的第一子带的时隙格式,该方案节省信令开销,另外,在最小化SFI的修改的同时实现了动态通知全双工时隙的时隙格式。
第四方面,提供了一种通信方法,该方法可以由网络设备执行,或者,也可以由网络设备的组成部件(例如芯片或者电路)执行,对此不作限定,为了便于描述,下面以由网络设备执行为例进行说明。
该方法包括:确定第四信息,该第四信息包括N个时隙格式指示SFI,该第一SFI为该N个SFI中的一个,该第一SFI指示M个时隙格式的组合,该M个时隙格式中的第一时隙格式指示第一资源的时隙格式,该第一资源位于第一时间单元和第一载波包含的第一子带,其中,该第一时间单元为全双工时间单元,N和M均为正整数;向终端设备发送该第四信息。
关于第四方面的有益效果参见第三方面的描述,这里不再赘述。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,第二资源的传输方向为上行,该第二资源位于该第一时间单元和该第二子带。
可选地,第一时隙格式组合中的时隙格式均指示全双工时间单元上,第一子带的时隙格式。终端设备默认在第一时间单元的所有OFDM符号上,第二子带的传输方向均为上行。
可选地,第一时隙格式组合中的时隙格式均指示全双工时间单元上,第一子带的时隙格式。终端设备根据第一时隙格式组合确定在第一时间单元上,第二子带的时隙格式。其中,在第一时间单元包括的所有或部分符号上,第一子带的传输方向与第二子带的传输方向相反。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,该M个时隙格式中的第二时隙格式指示第二资源的时隙格式,该第二资源位于该第一时间单元和该第二子带。
上述技术方案中,终端设备根据SFI对应的时隙格式组合中的另一个时隙格式配置第一时间单元上,第一载波中的第二子带的时隙格式,即终端设备可以通过多个时隙格式分别指示第一时间单元上,不同子带的传输方向。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,该第一时隙格式和该第二时隙格式为该M个时隙格式中相邻的两个时隙格式。
上述技术方案中,终端设备可以从解读到的时隙格式指示信息中最快地解析出对于一个时隙上的不同子带的传输方向。例如,当终端设备获取到第一SFI指示的时隙格式组合,可以在最短时间内获取到当前全双工时间单元的不同子带的时隙格式,从而减少终端设备确定当前全双工时间单元的传输方向所需时间。即,对于一个时隙格式组合,依次读取时,可以在最短时间内,即最初的几个时隙格式指示中就获取到全双工时间单元的不同子带的 时隙信息。同样,终端设备可以依次在最短时间内获取到之后的全双工时间单元的不同子带的时隙信息,从而减少终端设备确定之后的全双工时间单元的传输方向所需时间。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,该第一时隙格式还指示第三资源的时隙格式,该第三资源位于第一时间单元和第一载波包含的第三子带,该第一资源的时隙格式和该第三资源的时隙格式相同。
上述技术方案中,第一时隙格式可以用于指示第一载波中传输方向相同但在频域上不连续的多个子带的时隙格式。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,该M个时隙格式中的前M/2个时隙格式分别指示位于M/2个时间单元且位于该第一子带上的时隙格式;该M个时隙格式中的后M/2个时隙格式分别指示位于M/2个时间单元且位于该第二子带上的时隙格式。
上述技术方案中,终端设备可以根据多个时隙格式分别配置多个时间单元上,一个载波中的一个子带的时隙格式,实现了动态通知全双工时隙的时隙格式。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,第四信息通过第一RNTI加扰,该第一RNTI指示从该第一集合中确定该M个时隙格式的组合,该第一集合中仅包括为全双工时隙配置的至少一个组合,该至少一个组合中的每一个组合中包括至少一个时隙格式。
上述技术方案中,终端设备根据第一RNTI加扰即可知道从第一集合中选取时隙格式组合且选择的时隙格式组合用于全双工时间单元。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,第四信息通过第二RNTI加扰,该第二RNTI指示从该第二集合中确定该M个时隙格式的组合,该第二集合中包括为全双工时隙配置的至少一个组合和为非全双工时隙配置的至少一个组合,该至少一个组合中的每一个组合中包括至少一个时隙格式。
上述技术方案中,终端设备根据第二RNTI加扰即可知道从第二集合中选取时隙格式组合。需要说明是,网络设备配置给终端设备的第一SFI指示的第一时隙格式组合为第二集合中用于为第二集合中为全双工时隙配置的组合中的任一组合。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,该第二集合中共包括X个时隙格式组合,其中,前m个时隙格式组合是为非全双工时隙配置的,剩余的X-m个时隙格式组合是为全双工时隙配置的,其中,m为小于X的正整数。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,该X为大于或等于512的整数。
结合第三方面或第四方面,在第三方面或第四方面的某些实现方式中,当该X为大于512的整数时,且X个时隙格式组合的索引号为0~X-1,第一指示信息中第一SFI所占的信息块的比特数大于9。
可以理解,第一SFI所占的信息块(block)大于9bit,即第一SFI的SFI索引大于2 9=511,终端设备即可知道第一SFI对应的第一时隙格式组合为用于全双工时隙的时隙格式组合。
第五方面,提供了一种通信方法,该方法可以由终端设备执行,或者,也可以由终端设备的组成部件(例如芯片或者电路)执行,对此不作限定,为了便于描述,下面以由终端设备执行为例进行说明。
该方法包括:从基站接收第一信令,第一信令包含第一比特域,第二比特域和第三比特域,第一比特域用于指示时隙索引,第二比特域用于指示时隙索引对应的时隙为子带全双工时隙或者非子带全双工时隙,第三比特域用于指示时隙索引对应的时隙中所含的符号的传输方向;当第二比特域为第一状态值时,时隙索引对应的时隙为子带全双工时隙,当第二比特域为第二状态值时,时隙索引对应的时隙为非子带全双工时隙。
上述技术方案中,该方法可以有效指示全双工时隙的时隙配比,网络设备在发送时隙配比时,当基站告知终端设备时隙索引对应的时隙为子带全双工时隙,终端设备即可根据第二比特域的信息确定出时隙索引对应的时隙上的一个载波中第一子带和第二子带的传输方向。该方法可以节省信令。
结合第五方面,在第五方面的某些实现方式中,当第二比特域为第一状态值时,第三比特域用于指示第一载波的第一子带和/或第三子带的传输方向,而第一载波的第二子带的传输方向为上行,其中,第一载波包含第一子带/第三子带和第二子带;当第二比特域为第二状态值时,第三比特域用于指示第一载波的传输方向。
上述技术方案中,当第一比特域指示的时隙为子带全双工时隙,终端设备根据第二比特域进行解析第一载波所含的第一子带的传输方向,第一载波所含的第二子带的传输方向不受第二信息的影响,全部为上行。
结合第五方面,在第五方面的某些实现方式中,第一信令还包含子带指示信息,根据第二比特域以及子带指示信息,确定第一载波的第一子带和/或第三子带的传输方向为第三比特域所指示的传输方向;根据第二比特域以及子带指示信息,确定第一载波的第二子带的传输方向为上行。
上述技术方案中,当时隙为全双工时隙时,终端设备可以根据子带指示信息确定第一载波中不同传输方向的子带,这样,终端设备就可以结合第三信息确定第一载波中多个子带的传输方向。
结合第五方面,在第五方面的某些实现方式中,第一状态值为比特图bitmap,第一状态值对应至少一种子带指示信息。根据第一状态值所对应的子带指示信息,确定第一载波的第一子带和/或第三子带的传输方向为第三比特域所指示的传输方向;并确定第一载波的第二子带的传输方向为上行。
上述技术方案中,时隙的双工类型与子带比例通过比特图结合指示,节省了信令开销。作为示例,当第一状态值为00时,表示第一比特域的时隙索引对应的时隙为非子带全双工时隙,当第一状态值为01、10和11时,分别表示第一载波不同的子带比例,也隐含指示了第一比特域的时隙索引对应的时隙为子带全双工时隙。即,第一信息通过第一载波的子带比例隐含指示了第一时间单元的双工类型为全双工。
第六方面,提供了一种通信方法,该方法可以由终端设备执行,或者,也可以由终端设备的组成部件(例如芯片或者电路)执行,对此不作限定,为了便于描述,下面以由终端设备执行为例进行说明。
该方法包括:从基站接收时隙格式指示信息,时隙格式指示信息包含至少一个时隙格式指示索引,时隙格式指示索引对应的时隙组合配置信息用于指示一个载波所含的子带的传输方向,其中,一个载波包含N个子带,N为大于等于2的整数。
上述技术方案中,终端设备可以根据接收到的时隙组合配置信息确定在全双工时隙上, 第一载波中的N个子带的时隙格式,该方案可以节省信令,同时,还实现了动态通知全双工时隙的时隙格式。
结合第六方面,在第六方面的某些实现方式中,时隙组合配置信息中每N个时隙对应的时隙格式指示信息中,当N为2时,第一个时隙对应的时隙格式指示信息为第一个子带的时隙格式指示信息,第二个时隙对应的时隙格式指示信息为第二个子带的时隙格式指示信息;或者,时隙组合配置信息中每N个时隙对应的时隙格式指示信息中,当N为3时,第一个时隙对应的时隙格式指示信息为第一个子带和第三个子带的时隙格式指示信息,第二个时隙对应的时隙格式指示信息为第二个子带的时隙格式指示信息;或者,时隙组合配置信息中每N个时隙对应的时隙格式指示信息中,当N为3时,第一个时隙对应的时隙格式指示信息为第一个子带的时隙格式指示信息,第二个时隙对应的时隙格式指示信息为第二个子带的时隙格式指示信息,第三个时隙对应的时隙格式指示信息为第三个子带的时隙格式指示信息。
上述技术方案中,给出一种具体的动态通知全双工时隙的时隙格式的方法。另外,对于一个时隙格式组合,依次读取时,终端设备可以在最短时间内获取到一个全双工时隙的不同子带的时隙格式,从而减少终端设备确定当前全双工时隙的传输方向所需时间。同样,终端设备可以依次在最短时间内获取到之后的全双工时隙的不同子带的时隙信息,从而减少终端设备确定之后的全双工时隙的传输方向所需时间。
结合第六方面,在第六方面的某些实现方式中,时隙组合配置信息对应的时隙个数为M,当N为2时,第一个时隙到第M/2个时隙的时隙格式指示信息为第一个子带的时隙格式指示信息,第M/2+1个时隙到第M个时隙对应的时隙格式指示信息为第二个子带的时隙格式指示信息;或者,时隙组合配置信息对应的时隙个数为M,当N为3时,第一个时隙到第M/2个时隙的时隙格式指示信息为第一个子带和第三个子带的时隙格式指示信息,第M/2+1个时隙到第M个时隙对应的时隙格式指示信息为第二个子带的时隙格式指示信息。
上述技术方案中,给出另一种具体的动态通知全双工时隙的时隙格式的方法。
结合第六方面,在第六方面的某些实现方式中,接收时隙组合配置信息,时隙组合配置信息为基站通过无线资源控制RRC信令为子带全双工配置的;或者,时隙组合配置信息为基站通过RRC信令配置的,时隙组合配置信息包含两部分,第一部分是为非子带全双工配置的,第二部分是为子带全双工配置的。结合第六方面,在第六方面的某些实现方式中,时隙格式指示信息为组公共group common下行控制消息DCI。
第七方面,提供一种通信装置,该装置用于执行上述第一方面或第三方面或第五方面或第六方面提供的方法。具体地,该装置可以包括用于执行第一方面或第三方面或第五方面或第六方面以及第一方面或第三方面或第五方面或第六方面中任一种可能实现方式中的方法的单元和/或模块,如处理单元和/或通信单元。
在一种实现方式中,该装置为终端设备。当该装置为终端设备时,通信单元可以是收发器,或,输入/输出接口;处理单元可以是至少一个处理器。可选地,收发器可以为收发电路。可选地,输入/输出接口可以为输入/输出电路。
在另一种实现方式中,该装置为用于终端设备中的芯片、芯片系统或电路。当该装置为用于终端设备中的芯片、芯片系统或电路时,通信单元可以是该芯片、芯片系统或电路 上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等;处理单元可以是至少一个处理器、处理电路或逻辑电路等。
第八方面,提供一种通信装置,该装置用于执行上述第二方面或第四方面提供的方法。具体地,该装置可以包括用于执行第二方面或第四方面以及第二方面或第四方面中任一种可能实现方式中的方法的单元和/或模块,如处理单元和/或通信单元。
在一种实现方式中,该装置为网络设备。当该装置为网络设备时,通信单元可以是收发器,或,输入/输出接口;处理单元可以是至少一个处理器。可选地,收发器可以为收发电路。可选地,输入/输出接口可以为输入/输出电路。
在另一种实现方式中,该装置为用于网络设备中的芯片、芯片系统或电路。当该装置为用于终端设备中的芯片、芯片系统或电路时,通信单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等;处理单元可以是至少一个处理器、处理电路或逻辑电路等。
第九方面,提供一种通信装置,该装置包括:包括至少一个处理器,至少一个处理器与至少一个存储器耦合,至少一个存储器用于存储计算机程序或指令,至少一个处理器用于从至少一个存储器中调用并运行该计算机程序或指令,使得通信装置执行第一方面或第三方面或第五方面或第六方面以及第一方面或第三方面或第五方面或第六方面中任一种可能实现方式中的方法。
在一种实现方式中,该装置为终端设备。
在另一种实现方式中,该装置为用于终端设备中的芯片、芯片系统或电路。
第十方面,提供一种通信装置,该装置包括:包括至少一个处理器,至少一个处理器与至少一个存储器耦合,至少一个存储器用于存储计算机程序或指令,至少一个处理器用于从至少一个存储器中调用并运行该计算机程序或指令,使得通信装置执行第二方面或第四方面以及第二方面或第四方面中任一种可能实现方式中的方法。
在一种实现方式中,该装置为网络设备。
在另一种实现方式中,该装置为用于网络设备中的芯片、芯片系统或电路。
第十一方面,本申请提供一种处理器,用于执行上述各方面提供的方法。
对于处理器所涉及的发送和获取/接收等操作,如果没有特殊说明,或者,如果未与其在相关描述中的实际作用或者内在逻辑相抵触,则可以理解为处理器输出和接收、输入等操作,也可以理解为由射频电路和天线所进行的发送和接收操作,本申请对此不做限定。
第十二方面,提供一种计算机可读存储介质,该计算机可读存储介质存储用于设备执行的程序代码,该程序代码包括用于执行上述第一方面或第二方面或第三方面或第四方面或第五方面或第六方面以及第一方面或第二方面或第三方面或第四方面或第五方面或第六方面中任一种可能实现方式中的方法。
第十三方面,提供一种包含指令的计算机程序产品,当该计算机程序产品在计算机上运行时,使得计算机执行上述第一方面或第二方面或第三方面或第四方面或第五方面或第六方面以及第一方面或第二方面或第三方面或第四方面或第五方面或第六方面中任一种可能实现方式中的方法。
第十四方面,提供一种芯片,芯片包括处理器与通信接口,处理器通过通信接口读取存储器上存储的指令,执行上述第一方面或第二方面或第三方面或第四方面或第五方面或 第六方面以及第一方面或第二方面或第三方面或第四方面或第五方面或第六方面中任一种可能实现方式中的方法。
可选地,作为一种实现方式,芯片还包括存储器,存储器中存储有计算机程序或指令,处理器用于执行存储器上存储的计算机程序或指令,当计算机程序或指令被执行时,处理器用于执行上述第一方面或第二方面或第三方面或第四方面或第五方面或第六方面以及第一方面或第二方面或第三方面或第四方面或第五方面或第六方面中任一种可能实现方式中的方法。
第十五方面,提供一种通信系统,该通信系统包括第九方面以及第十方面所示的通信装置。
附图说明
图1是本申请实施例提供的一种通信系统的示意图。
图2是全双工的时频示意图。
图3是本申请提出的一种通信方法的示意性流程图。
图4是在全双工时隙上,第一载波中包括2个子带的示意图。
图5是在全双工时隙上,第一载波中包括3个子带的示意图。
图6是本申请提出的另一种通信方法的示意性流程图。
图7是第一时隙格式组合的示意图。
图8是非SBFD系统中时隙格式组合的示意图。
图9A是以第一时隙格式组合中的每相邻的2个时隙格式分别确定第一时间窗上,第一载波的2个子带的时隙格式的示意图。
图9B是以第一时隙格式组合中的每相邻的2个时隙格式分别确定第一时间窗上,第一载波的3个子带的时隙格式的示意图。
图9C是以第一时隙格式组合中的每相邻的3个时隙格式分别确定第一时间窗上,第一载波的3子带的时隙格式的示意图。
图10A是第一时隙格式组合中M个时隙格式2等分后分别指示在M/2个时间单元上,第一载波的2个子带的时隙格式的示意图。
图10B是第一时隙格式组合中M个时隙格式2等分后分别指示在M/2个时间单元上,第一载波的3个子带的时隙格式的示意图。
图10C是第一时隙格式组合中M个时隙格式3等分后分别指示在M/3个时间单元上,第一载波的3个子带的时隙格式的示意图。
图11是本申请提供的通信装置1000的示意性框图。
图12为本申请提供的通信装置10的示意性结构图。
具体实施方式
下面将结合附图,对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统,例如,第五代(5th generation,5G),新无线(new radio,NR),长期演进(long term evolution,LTE),物联网(internet of things,IoT),无线保真(wireless-fidelity,WiFi),第三代合作伙伴计划(3rd generation  partnership project,3GPP)相关的无线通信,或未来可能出现的其他无线通信等。
图2是本申请实施例提供的一种通信系统示意图。该通信系统中包括至少一个网络设备和多个终端设备。该通信系统中的网络设备与终端设备可通过无线链路通信,进而交互信息。可以理解的是,网络设备和终端设备也可以被称为通信设备。
网络设备是一种具有无线收发功能的网络侧设备。网络设备可以是无线接入网(radio access network,RAN)中为终端设备提供无线通信功能的装置,称为RAN设备。例如,该网络设备可以是基站(base station)、演进型基站(evolved NodeB,eNodeB)、5G移动通信系统中的下一代基站(next generation NodeB,gNB)、3GPP后续演进的基站、发送接收点(transmission reception point,TRP)、WiFi系统中的接入节点、无线中继节点、无线回传节点,宏或微基站,高频基站,LTE宏基站或LTE微基站等。在采用不同的无线接入技术(radio access technology,RAT)的通信系统中,具备基站功能的设备的名称可能会有所不同。例如,LTE系统中可以称为eNB或eNodeB,5G系统或NR系统中可以称为gNB,本申请对基站的具体名称不作限定。网络设备可以包含一个或多个共站址或非共站址的发送接收点。再如,网络设备可以包括一个或多个集中式单元(central unit,CU)、一个或多个分布式单元(distributed unit,DU)、或一个或多个CU和一个或多个DU。示例性地,CU的功能可以由一个实体或者不同的实体来实现。例如,CU的功能进行进一步切分,即将控制面和用户面分离并通过不同实体来实现,分别为控制面CU实体(即CU-CP实体)和用户面CU实体(即CU-UP实体),CU-CP实体和CU-UP实体可以与DU相耦合,共同完成接入网设备的功能。比如,CU负责处理非实时协议和服务,实现无线资源控制(radio resource control,RRC),分组数据汇聚层协议(packet data convergence protocol,PDCP)层的功能。DU负责处理物理层协议和实时服务,实现无线链路控制(radio link control,RLC)层、媒体接入控制(media access control,MAC)层和物理(physical,PHY)层的功能。这样可以通过多个网络功能实体来实现无线接入网设备的部分功能。这些网路功能实体可以是硬件设备中的网络元件,也可以是在专用硬件上运行软件功能,或者是平台(例如,云平台)上实例化的虚拟化功能。网络设备还可以包括有源天线单元(active antenna unit,简称AAU)。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息,或者,由PHY层的信息转变而来,因而,在这种架构下,高层信令,如RRC层信令,也可以认为是由DU发送的,或者,由DU+AAU发送的。可以理解的是,网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外,可以将CU划分为接入网(radio access network,RAN)中的网络设备,也可以将CU划分为核心网(core network,CN)中的网络设备,本申请对此不做限定。又如,车到一切(vehicle to everything,V2X)技术中,接入网设备可以为路侧单元(road side unit,RSU)。通信系统中的多个接入网设备可以为同一类型的基站,也可以为不同类型的基站。基站可以与终端设备进行通信,也可以通过中继站与终端设备进行通信。本申请实施例中,用于实现网络设备功能的装置可以是网络设备本身,也可以是能够支持网络设备实现该功能的装置,例如芯片系统或可实现接入网设备功能的组合器件、部件,该装置可以被安装在网络设备中。本申请实施例中,芯片系统可以由芯片构成,也可以包括芯片和其他分立器件。本申请实施例中,以网络设备为例,描述技术方案。
终端设备是一种具有无线收发功能的用户侧设备,可以是固定设备,移动设备、手持设备(例如手机)、可穿戴设备、车载设备,或内置于上述设备中的无线装置(例如,通信模块,调制解调器,或芯片系统等)。终端设备用于连接人,物,机器等,可广泛用于各种场景,例如:蜂窝通信、设备到设备(device-to-device,D2D)通信、V2X通信中的、机器到机器/机器类通信(machine-to-machine/machine-type communications,M2M/MTC)通信、物联网、虚拟现实(virtual reality,VR)、增强现实(augmented reality,AR)、工业控制(industrial control)、无人驾驶(self driving)、远程医疗(remote medical)、智能电网(smart grid)、智能家具、智能办公、智能穿戴、智能交通,智慧城市(smart city)、无人机、机器人等场景。示例性的,终端设备可以是蜂窝通信中的手持终端,D2D中的通信设备,MTC中的物联设备,智能交通和智慧城市中的监控摄像头,或,无人机上的通信设备等。终端设备有时可称为用户设备(user equipment,UE)、用户终端、用户装置、用户单元、用户站、终端、接入终端、接入站、UE站、远方站、移动设备或无线通信设备等等。本申请实施例中,用于实现终端设备的功能的装置可以是终端设备,也可以是能够支持终端设备实现该功能的装置,例如芯片系统或可实现终端设备功能的组合器件、部件,该装置可以被安装在终端设备中。为描述方便,本申请中以终端设备为例进行说明。
需要说明的是,图2仅为示例性框架,图2中包括的节点的数量不受限制,且除图2所示的功能节点外,还可以包括其它节点,如:核心网设备、网关设备、应用服务器等等,本申请不做限定。
在图2所示系统中,网络设备可以根据终端设备间的干扰情况将多个终端设备进行分组,如:将相互间干扰严重的终端分在同一组终端群组(简称组),将相互间干扰较小的终端作为匹配对分在另一组。例如,如图2所示,终端1和终端2之间干扰较小,终端3和终端4之间干扰小,终端1和终端3之间干扰较大,终端2和终端4之间干扰较大,则将终端1和终端3分在同一组#1,将终端2和终端4分在同一组#2,其中,同一组的终端在同一时间可以使用不同的传输方向传输数据。或者,网络设备可以根据业务情况对多个终端进行分组,如:将多个终端中需要传输下行业务的终端划分到下行业务较重的组,将需要传输上行业务的终端划分到上行业务较重的组其中,不同组的终端在同一时间可以使用不同的传输方向传输数据。传输方向可以为上行链路(uplink,UL)传输方向(简称上行传输(U))或者下行链路(downlink,DL)传输方向(简称下行传输(D)),上行链路传输方向可以指:从终端设备到网络设备的数据传输方向,下行链路传输方向可以指:从网络设备到终端设备的数据传输方向。为了便于理解,首先对本申请中涉及的一些术语进行说明。
1、符号(symbol):时域符号的简称,也可以称为正交频分多址(orthogonal frequency division multiplexing,OFDM)符号。需要说明的是,时域符号还可以与其他多址方式结合命名,本申请实施例不做限定。针对不同的子载波间隔,时域符号长度可以不同。
2、时间单元:时间单元可以为时隙(slot),或者符号,或者子帧,或者帧,或者迷你子帧,或者迷你时隙,本申请对此不做限定。
3、子带:子带为一个载波中的部分频带,即,频域上的一个或多个物理资源块(physical resource block,PRB)。
4、非全双工时隙:非全双工时隙包含的所有符号中的每一个符号只有一个传输方向。 作为示例,非全双工时隙中的符号全部为下行符号,或者,非全双工时隙中的符号全部为上行符号,或者,非全双工时隙中的符号部分为下行符号以及部分为上行符号,或者,非全双工时隙中的符号部分为下行符号,部分为上行符号以及部分为灵活符号,或者,非全双工时隙中的符号部分为下行符号以及部分为灵活符号,或者,非全双工时隙中的符号部分为上行符号以及部分为灵活符号。
5、全双工时隙:一种典型的SBFD方案的时频划分如图2所示,其中横轴代表时域,纵轴代表频域,图2中用左斜杠填充的两个长方块分别代表一组用于下行数据和/或控制信息传输的时频资源,用竖杠填充的长方块代表一组用于上行数据和/或控制信息传输的时频资源,这三块时频资源所占时域范围中的时隙称为全双工(full duplex,FD)时隙,右斜杠填充的长方块代表一组用于上行数据或控制信息传输的时频资源,其所占时域范围称为上行时隙。
应理解,在全双工时隙上,一个载波上包括第一子带和第二子带,第一子带和第二子带的传输方向不同。其中,第一子带和第二子带在频域上不重叠、部分重叠或完全重叠。本申请中,子带也可以理解为频域资源。
需要说的是,第一子带和第二子带是指传输方向不同的两种类型子带,并不表示一个载波中只包含两个子带。可以理解为,在全双工时隙上,一个载波中可以包括N个子带,N为大于或等于2的整数。也可以理解为,在全双工时隙上,在第一时隙上,第一载波包括至少两个子带。其中,第一载波中至少有两个子带的传输方向不同。举例来说,第一载波包括子带#1和子带#2,其中,子带#1和子带#2的传输方向不相同。或者,第一载波包括子带#1、子带#2和子带#3,其中,子带#1和子带#3的传输方向相同,子带#2的传输方向与子带#1不相同。
在一种技术中,网络设备在为一个时隙指示时隙配比时,该时隙配比中一个符号的传输方向只能为下行或上行或灵活。例如,一个时隙中包括14个符号,网络设备指示该时隙的时隙配比为DDDDDDDDUDDDUD,那么,终端设备根据该指示信息确定该时隙的14个符号的传输方向分别为DDDDDDDDUDDDUD。也就说,按照这种方法,终端设备确定一个时隙中的每一个符号的传输方向都是唯一的。
由上可知,网络设备可以通过上行传输和下行传输采用不同子带实现在一个全双工时隙中的某些符号上既能接收又能发送,也就说,全双工时隙的某些符号的传输方向并非是唯一的,因此,目前的时隙配比指示方式无法适用于全双工时隙。
有鉴于此,本申请提出一种通信方法,能够有效指示全双工时隙的时隙配比。下面对本申请提出的通信方法进行详细描述。
图3是本申请提出的一种通信方法的示意性流程图。
S301,网络设备确定第一时间单元上第一载波的传输方案。
确定第一时间单元上第一载波的传输方案为,确定第一时间单元上为全双工或者非全双工,以及,确定第一时间为全双工时间单元时,第一载波的第一子带和第二子带上,第一时间单元中每个符号的传输方向。
之后,网络设备将该传输方案告知终端设备,执行S302和S303。
S302,网络设备向终端设备发送第一信息,第一信息指示第一时间单元的双工类型,双工类型包括全双工和非全双工。对应的,终端设备从网络设备接收第一信息。
非全双工时隙是针对一个载波(carrier)或一个小区(cell)的,而不是针对一个载波或一个小区中的部分子带的。举例来说,在非全双工时隙上一个载波包括的所有子带的传输方向都相同。
第一信息指示第一时间单元的双工类型也可以理解为:第一信息指示第一时间单元为全双工时间单元或非全双工时间单元,或者,第一信息指示第一时间单元的双工类型为全双工或非全双工,后文中两种描述可以相互替换。
可选的,第一信息指示第一时间单元的双工类型为全双工或非全双工,可以为显示指示或者隐示指示。
在一种具体实现方式中,第一信息显示指示第一时间单元的双工类型为全双工或非全双工。作为示例,第一指示信息占用1比特(bit),当该1bit为0,表示第一时隙为非全双工时间单元,当该1bit为1,表示第一时隙为全双工时间单元。反之亦可。
S303,网络设备向终端设备发送第二信息,第二信息指示第一时间单元的传输方向。对应的,终端设备从网络设备接收第二信息。
应理解,第二信息指示第一时间单元包含的符号的传输方向。可选地,第一时间单元包含的符号全部为下行符号,或者,全部为上行符号,或者,部分为下行符号以及部分为上行符号,或者,部分为下行符号且部分为上行符号以及部分为灵活符号,或者,部分为下行符号以及部分为灵活符号,或者,部分为上行符号以及部分为灵活符号。
S304,终端设备根据第一信息和第二信息确定在第一时间单元上,第一载波的传输方向。
可选地,终端设备根据第一信息和第二信息确定在第一时间单元上,第一载波中至少一个子带的传输方向。应理解,当第一信息指示第一时间单元为非全工时间单元时,在第一时间单元上,第一载波的全部频域资源只对应一个传输方向。
应理解,当第一信息指示第一时间单元为全工时间单元时,终端设备根据第一信息和第二信息确定在第一时间单元上,第一载波的传输方向,也可以描述为:终端设备根据第一信息和第二信息确定第一载波中至少一个子带上的第一时间单元的符号的传输方向,两种描述方式可以相互替换。为便于描述,本实施例中以第一载波的第一子带为用于下行传输的子带,第一载波的第二子带为用于上行传输的子带为例进行说明。
作为示例,第一载波为图1所示的左边3个长方形对应的频域资源,则左斜杠填充的两个长方块对应的频域资源为第一子带,第一子带为用于下行传输的子带,左边3个长方形中用竖杠填充的长方块对应的频域资源为第二子带,第二子带为用于上行传输的子带。
应理解,左斜杠填充的两个长方块对应的时域资源上也可以包含灵活符号或上行符号;同理,第二子带为用于上行传输的子带,但在左边3个长方形中用竖杠填充的长方块对应的时域资源上也可以包含灵活符号或下行符号。
在一种具体实现方式中,终端设备根据第一信息和第二信息确定在第一时间单元上,第一载波的传输方向,包括:
①当第一信息指示第一时间单元为非全工时间单元时,终端设备确定第一载波的传输方向为第二信息指示的传输方向。
作为示例,第一时间单元为第一时隙,第一信息指示第一时隙为非全双工时隙,第二指示信息指示第一时隙中包括14个符号的传输方向依次为DDDDDDDDUDDDUD,则终 端设备确定在第一时隙的14个符号上,第一载波的传输方向依次为DDDDDDDDUDDDUD。也可以理解,终端设备确定第一载波上,第一时间单元的14个符号的传输方向依次为DDDDDDDDUDDDUD。
②当第一信息指示第一时间单元为全双工时间单元时,终端设备确定在第一时间单元上,第一载波中第一子带的传输方向为第二信息指示的传输方向。其中,在第一时间单元包括的所有或部分符号上,第一子带的传输方向与第二子带的传输方向相反。
可以理解,终端设备确定在第一时间单元上,第一载波中第二子带的传输方向不为第二信息指示的传输方向。
应理解,网络设备虽然没有直接指示第二子带的传输方向,但终端设备确定的第一载波中第二子带的传输方向与网络设备确定的传输方案中第二子带的传输方向必须是一致的,因此,终端设备在确定第二子带的传输方向前,需要与网络设备使用同一规则解读第二子带的传输方向。
可选地,终端设备确定在第一时间单元上所有符号上,第一载波中第二子带的传输方向为上行。
可选地,终端设备确定在第一时间单元的部分符号上第二子带的传输方向为灵活以及在剩余的部分符号上第二子带的传输方向为上行。在这种方式中,部分符号或剩余的部分符号的个数可以为预先配置。
可选地,预先配置为通过RRC信令配置或者预先设置在终端设备和网络设备中。
可选地,终端设备确定在第一时间单元包括的下行符号上,第一子带的传输方向与第二子带的传输方向相反。作为示例,第一时间单元为第一时隙,第一信息指示第一时隙为全双工时隙,第二指示信息指示第一时隙中包括14个符号的传输方向依次为DDFDDDDDUDDDUD,则终端设备确定在第一时隙的14个符号上,第一载波的第一子带的传输方向依次为DDFDDDDDUDDDUD,第一载波的第二子带的传输方向依次为UUFUUUUUUUUUUU。也可以理解,终端设备确定第一子带上,第一时间单元的14个符号的传输方向依次为DDFDDDDDUDDDUD,第一载波的第二子带上,第一时间单元的14个符号的传输方向依次为UUFUUUUUUUUUUU。
可选地,终端设备确定在第一时间单元包括的灵活符号上,第一子带的传输方向为灵活,第二子带的传输方向为灵活或上行。作为示例,第一时间单元为第一时隙,第一信息指示第一时隙为全双工时隙,第二指示信息指示第一时隙中包括14个符号的传输方向依次为DDDDDDDDUFFDUD,则终端设备确定在第一时隙的14个符号上,第一载波的第一子带的传输方向依次为DDDDDDDDUFFDUD;第一载波的第二子带的传输方向依次为UUUUUUUUUUUUUU,或者,第一载波的第二子带的传输方向依次为UUUUUUUUUFFUUU,或者,第一载波的第二子带的传输方向依次为FFUUUUUUUUUUUUU。
可选地,终端设备在接收第一信息的时隙上使用第一信息和第二信息对该时隙进行时隙格式的配置。
可选地,终端设备在接收第一信息的P个时隙之后的时隙上使用第一信息和第二信息对该时隙进行时隙格式的配置。
应理解,终端设备在确定第一载波中各子带的传输方向时,需要先确定哪些子带是第 一子带,哪些是第二子带,也就是说,终端设备需要知道第一载波中第一子带和第二子带的位置。
可选地,当第一载波中第一子带和第二子带重叠时,网络设备可以向终端设备直接指示第一载波中第一子带和第二子带的位置。
可选地,当第一载波中第一子带和第二子带不重叠时,网络设备可以向终端设备指示第一载波中第一子带和第二子带的比例(下文中简称为“子带比例”),终端设备可以根据第一载波的子带比例确定第一载波中第一子带和第二子带的位置。
需要说明是,当第一载波中第一子带和第二子带不重叠时,实际中需要在第一载波的第一子带和第二子带的之间预留出部分保护带宽,以便应对网络设备的发送对接收造成的干扰。这种干扰也称之为自干扰,或邻频泄露,或邻信道泄露(adjacent channel leakage),是一种干扰阻塞。
可选地,保护带宽为k个PRB,即第一子带和第二子带之间间隔k个PRB。可选的,PRB也可以为PRB组。
可选地,第一载波的子带比例可以是预配置的,也可以是协议规定的。即第一载波的子带比例可以是灵活配置的,也可以是固定不变的。
在一种具体实现方式中,网络设备可以向终端设备发送第三信息,第三信息用于指示第一载波的子带比例。对应的,终端设备从网络设备接收第三信息,根据第三信息确定第一载波的上行子带和下行子带的位置。
作为示例,以第一载波为图4所示的CC#1,第一时间单元为图4所示的时隙#1为例,其中,时隙#1为全双工时隙,CC#1中包括子带#1和子带#2,子带#1为第一子带,子带#2为第二子带,其中,子带#1的起始频点为第一载波所占据的频带的最低频点,子带#1和子带#2之间有保护带宽。网络设备通过第三信息指示CC#1的子带比例为子带#1:子带#2=X:Y,X和Y均大于0。作为示例,终端设备在CC#1的带宽中减去用于应对自干扰的保护带宽,在剩余的带宽中按照该子带比例X:Y计算子带#1和子带#2所占的带宽。终端设备以CC#1所占据的频带的最低频点开始,按照子带#1所占的带宽,确定子带#1的位置和对应的频域资源。终端设备以子带#1所占的频域资源的末端加保护带宽,确定子带#2的起始位置。进一步,按照子带#2所占的带宽确定子带#2对应的频域资源。
本申请中,子带#1的起始频点也可以为第一载波所占据的频带的最高频点,上述只作为示例,不构成限制。
作为示例,以第一载波为图5所示的CC#1,第一时间单元为图5所示的时隙#1为例,其中,时隙#1为全双工时隙,CC#1中包括子带#1、子带#2和子带#3,子带#1和子带#3为第一子带,子带#2为第二子带,其中,子带#1的起始频点为CC#1所占据的频带的最低频点,子带#2位于子带#1和子带#3之间,子带#1和子带#2之间有保护带宽,子带#2和子带#3之间有保护带宽。网络设备通过第三信息指示CC#1的子带比例为子带#1:子带#2:子带#3=X:Y:Z,X、Y和Z均大于0。作为示例,终端设备在CC#1的带宽中减去用于应对自干扰的两个保护带宽,在剩余的带宽中按照该子带比例X:Y:Z计算子带#1,子带#2和子带#3所占的带宽。终端设备以CC#1所占据的频带的最低频点开始,按照子带#1所占的带宽,确定子带#1的位置和对应的频域资源。终端设备以子带#1所占的频域资源的末端加保护带宽,确定子带#2的起始位置。进一步,按照子带#2所占的带宽确定子带 #2对应的频域资源。终端设备以子带#2所占的频域资源的末端加保护带宽,确定子带#3的起始位置。进一步,按照子带#3所占的带宽确定子带#3对应的频域资源。
本申请中,子带#1的起始频点也可以为第一载波所占据的频带的最高频点,上述只作为示例,不构成限制。
在另一种具体实现方式中,第一信息还指示第一载波的子带比例。作为示例,第一指示信息占用M个比特,M个比特对应的2 M个状态中的一个状态表示第一时间单元为非全双工时间单元,2 M个状态中剩余的状态表示中的每一个状态分别指示一个第一载波的子带比例,M为大于2的整数。例如,第一指示信息占用2bit,当该2bit为00时,表示第一时间单元为非全双工时间单元,当该2bit信息为01、10和11时,分别指示第一载波不同的子带比例,当该2bit信息为01、10和11时,隐含指示了第一时间单元为全双工时间单元。即,第一信息通过第一载波的子带比例隐含指示了第一时间单元的双工类型为全双工。
可选地,第一信息可以为时分双工-下行链路-上行链路-配置专用TDD-UL-DL-configuration-dedicated信令,也可以为新增的系统消息块(system information block,SIB)。
可选地,网络设备可以直接指示在第一时间单元上,第一载波的第一子带和第二子带的传输方向,这样,相比图3所示的方法,不用在终端设备侧引入确定第二子带的传输方向的判断逻辑,从而节省终端设备的能耗,降低时延。
图3所示的技术方案可以结合现有5G系统中专用/专有(dedicated)信令指示的时隙配比,通过最少的比特位,指示出一个子带比例可变的全双工时隙的时隙配比从而节省信令开销。此外,相比于分别指示一个载波中不同子带对应的时隙配比的方法,上述技术方案也有效减少了信令成本。
下面,本申请给出另一种通信方法,也能够有效指示全双工时隙的时隙配比。
图6是本申请提出的另一种通信方法的示意性流程图。
S601,网络设备向终端设备发送第四信息,第四信息包括N个SFI,第一SFI为N个SFI中的一个,第一SFI指示M个时隙格式的组合,M个时隙格式中的第一时隙格式指示第一资源的时隙格式,第一资源位于第一时间单元和第一载波包含的第一子带,其中,第一时间单元为全双工时间单元,N和M均为正整数。对应的,终端设备从网络设备接收第四信息。
应理解,第一资源为时域上占用至少一个符号,频域上占用至少一个PRB的时频资源。
还应理解,第一时隙格式指示第一资源的时隙格式,第一资源位于第一时间单元和第一载波包含的第一子带,也可以描述为:第一时隙格式指示在第一时间单元上,第一载波包含的第一子带的时隙格式,或,第一时隙格式指示第一载波的第一子带上,第一时间单元的时隙格式,以上描述方式可以相互替换。
可选的,N个SFI可以分别对应N个载波,或者N个小区(cell)。可选的,N个SFI还可以分别对应N个子带。
应理解,本申请中,在一般循环移位(normal cyclic prefix,NCP)时,一个时隙格式(slotformat)中包括14个符号的传输方向;在扩展循环移位(extended cyclic prefix,ECP) 时,一个时隙格式中包括12个符号的传输方向。作为示例,当一个时隙格式中包括14个符号的传输方向时,一个时隙格式可以为:DDDDDDDDUDDDUD。
为便于描述,本申请也可以将第一SFI指示的M个时隙格式的组合称为第一时隙格式组合,即第一时隙格式组合中包括M个时隙格式,两种描述可以相互替换。作为示例,第一时隙格式组合的示意图如图7所示。
可以看出,第一SFI对应的第一时隙格式组合是用于全双工时间单元的时隙格式组合,那么,网络设备还需要告知终端设备第一SFI对应的第一时隙格式组合是用于全双工时间单元的时隙格式组合。下面给出可能的几种实现方式。
为便于理解给出的实现方式,首先对目前的时隙格式指示(slot format information,SFI)进行简单的介绍。在非SBFD系统中,网络设备通过物理下行控制信道(physical downlink control channel,PDCCH)为终端设备配置一个SFI,承载该SFI的PDCCH DCI格式为DCI format 2_0,该DCI的循环冗余校验(cyclic redundancy check,CRC)由SFI对应的无线网络临时标识(radio network temporary identifier,RNTI)(即SFI-RNTI)加扰,终端设备根据接收到的SFI在SFI-RNTI对应的表格1确定要使用的时隙格式组合。如图8所示,表格1中包括512个时隙格式组合,512个时隙格式组合对应的索引范围为0~511,每个时隙格式组合中最多包括256个时隙格式,即,一个时隙格式组合中不超过256个时隙格式。作为示例,如果该SFI的SFI索引(index)为10,那么终端设备确定该SFI对应的时隙格式为表格1中索引为10的时隙格式组合。下面继续介绍本申请给出的可能的几种实现方式。
方式一
新定义一个表格2,表格2中包含至少一个用于全双工时隙的时隙格式组合,且至少一个时隙格式组合中的每一个时隙格式组合中包括至少一个时隙格式。表格2可以对应于一个新的FD-SFI-RNTI。
因此,方式一的实现可以为:第四信息可以为DCI,该DCI的CRC通过一个新的FD-SFI-RNTI加扰,从而使得终端设备根据新的FD-SFI-RNTI对应的表格2去确定第一SFI对应的时隙格式组合。
可选地,FD-SFI-RNTI也可以为SBFD-SFI-RNTI或其他名称,本申请对此不做限定。
方式二
将表1中的时隙格式组合划分为不同的使用范围,例如:表1中索引号为0~m的时隙格式组合用于非全双工时隙,表1中索引号为m+1~511的时隙格式组合用于全双工时隙。可选地,m为高层信令配置或预定义的。
可选地,高层信令可以理解为RRC信令或MAC信令。可选地,RRC信令或MAC信令为网络设备向终端设备发送的。
那么,方式二的实现方式可以为:第四信息可以为DCI,该DCI的CRC仍然通过表1对应的SFI-RNTI加扰,网络设备配置第一SFI指示的第一时隙格式组合为表1中索引号为m+1~511的时隙格式组合中的任一时隙格式组合。
方式三
将表1在原先512个时隙格式组合的基础上增加到X个时隙格式组合,X为大于512的整数。其中,表1中原先索引号为0~511的时隙格式组合仍用于非全双工时隙,表1中 索引号为512~X-1的时隙格式组合用于全双工时隙。
那么,方式三的实现方式可以为:第四信息可以为DCI,该DCI的CRC仍然通过表1对应的SFI-RNTI加扰,网络设备配置第一SFI指示的第一时隙格式组合为表1中索引号为512~X-1的时隙格式组合中的任一时隙格式组合。
示例的,第一SFI所占的信息块(block)大于9bit,即第一SFI的SFI索引大于2 9=511,终端设备即可知道第一SFI对应的第一时隙格式组合为用于全双工时隙的时隙格式组合。
需要说明的是,上述方式一至方式三中的表格也可以为集合或其它形式,本申请对此不做限定。上述方式一至方式三中的表格的索引号也可以从1开始,本申请对此不做限定。
S602,终端设备根据第一SFI,确定在第一资源上的传输方向。
应理解,终端设备根据第一SFI,确定在第一资源上的传输方向也可以描述为:终端设备根据第一SFI,确定在第一时间单元上,第一子带的时隙格式,或,终端设备根据第一SFI,确定第一载波的第一子带上,第一时间单元的时隙格式,以上描述方式可以相互替换。
具体的,终端设备根据第一SFI指示的第一时隙格式组合中的第一时隙格式确定在第一时间单元上,第一子带的时隙格式。作为示例,第一时间单元为一个时隙,第一时隙格式中的14个符号的传输方向依次为:DDDDDDDDUDDDUD,则终端设备确定在该时隙上,第一子带的时隙格式为:DDDDDDDDUDDDUD。
本申请中,时隙格式也可以替换为传输方向。例如,在第一时间单元上,第一子带的时隙格式为:DDDDDDDDUDDDUD,可以描述为:在第一时间单元上,第一子带的传输方向为:DDDDDDDDUDDDUD。
可选地,这里的第一子带可以为连续的子带,也可以为不连续的子带。
可选地,当第一子带为不连续的Q个子带,Q为大于或等于2的整数,那么,终端设备根据第一SFI,确定在第一时间单元上,第一子带的时隙格式,也可以理解为:终端设备根据第一SFI,确定在第一时间单元上,Q个子带的时隙格式,其中,Q个子带的时隙格式相同。也就是说,第一时隙格式可以用于指示第一载波中传输方向相同但在频域上不连续的多个子带的时隙格式,且第一载波中传输方向相同但在频域上不连续的多个子带,在时域上符号的方向一致。
在一种实现方式中,第一子带包括两个不连续的子带,分别为子带A和子带B,那么,终端设备根据第一时隙格式确定在第一时间单元上,子带A和子带B的时隙格式,其中,子带A和子带B的时隙格式相同。作为示例,第一时间单元包括7个符号,第一时隙格式中的14个符号的传输方向依次为:DDDDDDDDUDDDUD,则在第一时间单元上,子带A的时隙格式为:DDDDDDD,子带B的时隙格式也为:DDDDDDD,或者,子带A的时隙格式为:DUDDDUD,子带B的时隙格式也为:DUDDDUD。作为另一种示例,第一时间单元包括14个符号,第一时隙格式中的14个符号的传输方向依次为:DDDDDDDDUDDDUD,则在第一时间单元上,子带A的时隙格式为:DDDDDDDDUDDDUD,子带B的时隙格式也为:DDDDDDDDUDDDUD。
可选地,第一时隙格式组合中的时隙格式均指示全双工时间单元上,第一子带的时隙格式。终端设备默认或网络设备通过RRC信令配置在第一时间单元的所有符号上,第二子带的传输方向均为上行。作为示例,第一时间单元为一个时隙,在该时隙上,终端设备 默认第二子带的时隙格式为:UUUUUUUUUUUUUU。
可选地,终端设备根据第一时隙格式确定在第一时间单元上,第二子带的时隙格式,其中,在第一时间单元包括的所有或部分符号上,第一子带的传输方向与第二子带的传输方向相反。
可选地,在第一时间单元包括的下行符号上,第一子带的传输方向为下行,第二子带的传输方向为上行。作为示例,当第一时间单元为一个时隙,第一时隙格式指示该时隙的时隙格式为:DDDDDDDDUDDDUD,则在该时隙上,第一子带的时隙格式为:DDDDDDDDUDDDUD,第二子带的时隙格式为:UUUUUUUUUUUUUU。
可选地,在第一时间单元包括的灵活符号上,第一子带的传输方向为灵活,第二子带的传输方向为灵活或上行。作为示例,当第一时间单元为一个时隙,第一时隙格式指示该时隙的时隙格式为:DDDDDDDDUFFDUD时,那么,在该时隙上,第一子带的时隙格式为:DDDDDDDDUFFDUD,第二子带的时隙格式为:UUUUUUUUUUUUUU,或者,第二子带的时隙格式为:UUUUUUUUUFFUUU。
可选地,网络设备通过第一时隙格式组合中的第二时隙格式指示在第一时间单元上,第二子带的时隙格式。对应的,终端设备根据第二时隙格式确定第一资源的时隙格式。
可选地,第一时隙格式和第二时隙格式为第一时隙格式组合中相邻的时隙格式。
可选地,第一子带和第二子带的位置的确定方法可以参见图3对应的实施例中描述,这里不再赘述。
下面给出几种网络设备通过第一时隙格式组合配置全双工时间单元的时隙格式的具体实现方式。
方式一
网络设备通过第一时隙格式组合中的每L个时隙格式分别指示一个时间单元上,第一载波的至少两个子带的时隙格式,L为正整数。
可选地,每L个时隙格式为从第一时隙格式组合的M个时隙格式中依次取L个时隙格式。即,M个时隙格式可以分为L/M组。当L/M不为整数时,对L/M进行向下取整确定组数。
可选地,L=2,第一载波包含子带#1和子带#2。子带#1为第一子带,子带#2为第二子带。网络设备通过第一时隙格式组合中的每2个时隙格式分别指示一个时间单元上,第一载波的子带#1和子带#2的时隙格式。其中,每两个时隙格式中的前一个时隙格式为子带#1的时隙格式,每两个时隙格式中的后一个时隙格式为子带#2的时隙格式。
可选地,L=2,第一载波包含子带#1、子带#2和子带#3。子带#1和子带#3为第一子带,子带#2为第二子带。网络设备通过第一时隙格式组合中的每2个时隙格式分别指示一个时间单元上,第一载波的子带#1、子带#2和子带#3的时隙格式。其中,每两个时隙格式中的前一个时隙格式为子带#1和子带#3的时隙格式,每两个时隙格式中的后一个时隙格式为子带#2第二子带的时隙格式。
可选地,L=3,第一载波包含子带#1、子带#2和子带#3。子带#1和子带#3为第一子带,子带#2为第二子带。网络设备通过第一时隙格式组合中的每3个时隙格式指示一个时间单元上,第一载波的子带#1、子带#2和子带#3的时隙格式。其中,每三个时隙格式中的第一个时隙格式为子带#1的时隙格式,每三个时隙格式中的第二个时隙格式为子带 #2第二子带的时隙格式,每三个时隙格式中的第三个时隙格式为子带#3第三子带的时隙格式。
对应的,终端设备根据第一时隙格式组合中的每相邻的L个时隙格式分别确定第一时间窗中包含的每一个时间单元上,第一载波的至少两个子带的时隙格式,第一时间窗中的时间单元为全双工时间单元。具体的确定方式参见上述网络设备的指示方式,这里不再赘述。
可选地,L可以是网络设备配置,也可以是预定义的。下面对方式一举例说明。作为示例,终端设备需要确定的第一时间窗中包括3个全双工时隙,分别为时隙#1、时隙#2和时隙#3。
(1)L=2
作为示例,第一时隙格式组合如图9A所示,以第一载波为图9A所示的CC#1为例,CC#1中包括子带#1和子带#2,子带#1为第一子带,子带#2为第二子带。终端设备可以根据第一时隙格式组合中的时隙格式1确定在时隙#1上,子带#1的时隙格式,根据时隙格式2确定在时隙#1上,子带#2的时隙格式。同理,终端设备可以根据时隙格式3确定在时隙#2上,子带#1的时隙格式,根据时隙格式4确定在时隙#2上,子带#2的时隙格式。依次类推,这里不再赘述。
作为示例,第一时隙格式组合如图9B所示,以第一载波为图9B所示的CC#1为例,CC#1中包括子带#1、子带#2和子带#3,子带#1和子带#3为第一子带,子带#2为第二子带。终端设备可以根据第一时隙格式组合中的时隙格式1确定在时隙#1上,子带#1和子带#3的时隙格式,根据时隙格式2确定在时隙#1上,子带#2的时隙格式。同理,终端设备可以根据时隙格式3确定在时隙#2上,子带#1和子带#3的时隙格式,根据时隙格式4确定在时隙#2上,子带#2的时隙格式。依次类推,这里不再赘述。
(2)L=3
作为示例,第一时隙格式组合如图9C所示,以第一载波为图9C所示的CC#1为例,CC#1中包括子带#1、子带#2和子带#3,子带#1和子带#3为第一子带,子带#2为第二子带。终端设备可以根据第一时隙格式组合中的时隙格式1确定在时隙#1上,子带#1的时隙格式,根据时隙格式2确定在时隙#1上,子带#2的时隙格式,根据时隙格式3确定在时隙#1上,子带#3的时隙格式。同理,终端设备可以根据时隙格式4确定在时隙#2上,子带#1的时隙格式,根据时隙格式5确定在时隙#2上,子带#2的时隙格式,根据时隙格式6确定在时隙#2上,子带#3的时隙格式。依次类推,这里不再赘述。
方式二
可选地,Q=2,第一载波包含子带#1和子带#2。子带#1为第一子带,子带#2为第二子带。网络设备通过第一时隙格式组合中的前M/2个时隙格式分别指示在M/2个时间单元上,子带#1的时隙格式;以及,根据第一时隙格式组合中的后M/2个时隙格式分别指示在M/2个时间单元上,子带#2的时隙格式。
可选地,Q=2,第一载波包含子带#1、子带#2和子带#3。子带#1和子带#3为第一子带,子带#2为第二子带。网络设备通过第一时隙格式组合中的前M/2个时隙格式分别指示在M/2个时间单元上,子带#1和子带#3的时隙格式;以及,根据第一时隙格式组合中的后M/2个时隙格式分别指示在M/2个时间单元上,子带#2的时隙格式。
可选地,Q=3,第一载波包含子带#1、子带#2和子带#3。子带#1和子带#3为第一子带,子带#2为第二子带。网络设备通过第一时隙格式组合中的前M/3个时隙格式分别指示在M/3个时间单元上,子带#1的时隙格式;以及,根据第一时隙格式组合中位于中间的M/3个时隙格式分别指示在M/3个时间单元上,子带#2的时隙格式,以及,根据第一时隙格式组合中的后M/3个时隙格式分别指示在M/3个时间单元上,子带#3的时隙格式。对应的,终端设备根据上述网络设备的指示方式确定第一载波上不同子带的传输方向,这里不再赘述。可选地,Q可以是网络设备配置,也可以是预定义的。M是根据第一时隙格式组合所对应的时隙格式个数隐含指示的。
可选地,网络配置为通过RRC信令或MAC信令配置,或者,通过RRC信令配置并通过DCI指示。
可选地,第一时间窗可以为连续的时间单元,也可以为不连续的时间单元。
下面对方式二举例说明。
(1)Q=2
作为示例,第一时隙格式组合中包括M=6个时隙格式,第一时间窗中包括M/Q=3个全双工时隙,分别为时隙#1、时隙#2和时隙#3。
当第一载波为图10A所示的CC#1,CC#1中包括子带#1和子带#2,子带#1为第一子带,子带#2为第二子带。终端设备可以根据时隙格式1确定在时隙#1上,子带#1的时隙格式,根据时隙格式2确定在时隙#2上,子带#1的时隙格式,根据时隙格式3确定在时隙#3上,子带#1的时隙格式;终端设备可以根据时隙格式4确定在时隙#1上,子带#2的时隙格式,根据时隙格式5确定在时隙#2上,子带#2的时隙格式,根据时隙格式6确定在时隙#2上,子带#3的时隙格式。
当第一载波为图10B所示的CC#1,CC#1中包括子带#1、子带#2和子带#3,子带#1和子带#3为第一子带,子带#2为第二子带。终端设备可以根据时隙格式1确定在时隙#1上,子带#1和子带#3的时隙格式,根据时隙格式2确定在时隙#2上,子带#1和子带#3的时隙格式,根据时隙格式3确定在时隙#3上,子带#1和子带#3的时隙格式;终端设备可以根据时隙格式4确定在时隙#1上,子带#2的时隙格式,根据时隙格式5确定在时隙#2上,子带#2的时隙格式,根据时隙格式6确定在时隙#2上,子带#3的时隙格式。
(2)Q=3
作为示例,第一时隙格式组合中包括M=6个时隙格式,第一时间窗中包括M/Q=2个全双工时隙,分别为时隙#1和时隙#2。
当第一载波为图10C所示的CC#1,CC#1中包括子带#1和子带#2,子带#1为第一子带,子带#2为第二子带。终端设备可以根据时隙格式1确定在时隙#1上,子带#1的时隙格式,根据时隙格式2确定在时隙#2上,子带#1的时隙格式;终端设备根据时隙格式3确定在时隙#1上,子带#2的时隙格式,根据时隙格式4确定在时隙#2上,子带#2的时隙格式;终端设备根据时隙格式5确定在时隙#1上,子带#3的时隙格式,根据时隙格式6确定在时隙#2上,子带#3的时隙格式。
可选的,当网络配置的第一时隙格式组合中的M如果不能被Q整除时,终端设备对M/Q进行向下取整。再按照上述方法依次执行,这里不再赘述。
上述技术方案中,终端设备可以通过解读SFI获取SFI对应的时隙格式组合,根据确 定的时隙格式组合中一个或多个时隙格式配置一个全双工时隙上,一个载波中的多个子带的时隙格式。该方案对现有的SFI做了最小修改,节省信令,另外,在最小化SFI的修改的同时实现了动态通知全双工时隙的时隙格式。
应理解,图9和图10中以子带全双工作为示例,实际应用中,本申请所有实施例中的方案可以不限于子带全双工,可以是任何全双工,或者任何可以同时有不同传输方向的系统。
以上对本申请提供的通信方法进行了详细说明,下面介绍本申请提供的通信装置。
参见图11,图11是本申请提供的通信装置1000的示意性框图。
在一种可能的设计中,通信装置1000包括接收单元1100和处理单元1200。该通信装置1000可实现对应于上文方法实施例中终端设备执行的步骤或者流程,例如,该通信装置1000可以为终端设备,或者也可以为配置终端设备中的芯片或电路。接收单元1100用于执行上文方法实施例中终端设备的接收相关操作,处理单元1200用于执行上文方法实施例中终端设备的处理相关操作。
一种可能的实现方式,接收单元1100,从网络设备接收第一信息,所述第一信息指示第一时间单元的双工类型,所述双工类型包括全双工和非全双工;接收单元1100,还用于从所述网络设备接收第二信息,所述第二信息指示所述第一时间单元的传输方向;处理单元1200,还用于根据所述第一信息和所述第二信息确定在所述第一时间单元上,第一载波的传输方向。其中,第一信息和第一载波可以参见上述图3对应的实施例中的描述,在此不再赘述。
可选地,处理单元1200具体用于,确定所述第一子带的传输方向为所述第二信息指示的传输方向,其中,在所述第一时间单元包括的所有或部分符号上,所述第一子带的传输方向与所述第二子带的传输方向相反。
可选地,所述第二信息指示所述第一时间单元中的N个符号的传输方向为下行,N为正整数,处理单元1200具体用于,确定在所述第一时间单元包括的所述N个符号上,所述第一子带的传输方向为下行,所述第二子带的传输方向为上行。
可选地,接收单元1100,还用于从所述网络设备接收第三信息,所述第三信息指示所述第一子带和所述第二子带所占的比例;处理单元,还用于根据所述第三信息确定所述第一子带和所述第二子带。
另一种可能的实现方式,接收单元1100,从网络设备接收第四信息,所述第四信息包括N个时隙格式指示SFI,所述第一SFI为所述N个SFI中的一个,所述第一SFI指示M个时隙格式的组合,所述M个时隙格式中的第一时隙格式指示第一资源的时隙格式,所述第一资源位于第一时间单元和第一载波包含的第一子带,其中,所述第一时间单元为全双工时间单元,N和M均为正整数;处理单元1200,用于根据所述第一SFI,确定在所述第一资源上的传输方向。其中,第四信息、第一载波和M个时隙格式可以参见上述图6对应的实施例中的描述,在此不再赘述。
可选地,通信装置1000还包括发送单元1300。发送单元1300和接收单元1100也可以集成为一个收发单元,同时具备接收和发送的功能,这里不作限定。
可选的,在通信装置1000为方法实施例中的终端设备这种实现方式中,发送单元1300可以为发射器,接收单元1100可以为接收器。接收器和发射器也可以集成为一个收发器。 处理单元1200可以为处理装置。
其中,处理装置的功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。例如,处理装置可以包括存储器和处理器,其中,存储器用于存储计算机程序,处理器读取并执行存储器中存储的计算机程序,使得通信装置1000执行各方法实施例中由终端设备执行的操作和/或处理。可选地,处理装置可以仅包括处理器,用于存储计算机程序的存储器位于处理装置之外。处理器通过电路/电线与存储器连接,以读取并执行存储器中存储的计算机程序。又例如,处理装置可以芯片或集成电路。
可选地,在通信装置1000为安装在终端设备中的芯片或集成电路这种实现方式中,发送单元1300和接收单元1100可以为通信接口或者接口电路,例如,发送单元1300为输出接口或输出电路,接收单元1100为输入接口或输入电路。处理单元1200可以为该芯片或集成电路上集成的处理器或者微处理器。在此不做限定。
在另一种可能的设计中,通信装置1000包括处理单元1200和发送单元1300。该通信装置1000可实现对应于上文方法实施例中网络设备执行的步骤或者流程,例如,该通信装置1000可以为网络设备,或者也可以为配置网络设备中的芯片或电路。发送单元1300用于执行上文方法实施例中网络设备的接收相关操作,处理单元1200用于执行上文方法实施例中网络设备的处理相关操作。
一种可能的实现方式,发送单元1300,用于向终端设备发送第一信息,所述第一信息指示第一时间单元的双工类型,所述双工类型包括全双工和非全双工;发送单元1300,还用于向所述终端设备发送第二信息,所述第二信息指示所述第一时间单元的传输方向。其中,第一信息和第一载波可以参见上述图3对应的实施例中的描述,在此不再赘述。
另一种可能的实现方式,处理单元1200,还用于确定第四信息,所述第四信息包括N个时隙格式指示SFI,所述第一SFI为所述N个SFI中的一个,所述第一SFI指示M个时隙格式的组合,所述M个时隙格式中的第一时隙格式指示第一资源的时隙格式,所述第一资源位于第一时间单元和第一载波包含的第一子带,其中,所述第一时间单元为全双工时间单元,N和M均为正整数;发送单元1300,用于向终端设备发送所述第四信息。其中,第四信息、第一载波和M个时隙格式可以参见上述图6对应的实施例中的描述,在此不再赘述。
可选地,通信装置1000还包括接收单元1100。发送单元1300和接收单元1100也可以集成为一个收发单元,同时具备接收和发送的功能,这里不作限定。
可选地,在通信装置1000为方法实施例中的网络设备这种实现方式中,发送单元1300可以为发射器,接收单元1100可以为接收器。接收器和发射器也可以集成为一个收发器。处理单元1200可以为处理装置。
其中,处理装置的功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。例如,处理装置可以包括存储器和处理器,其中,存储器用于存储计算机程序,处理器读取并执行存储器中存储的计算机程序,使得通信装置1000执行各方法实施例中由网络设备执行的操作和/或处理。可选地,处理装置可以仅包括处理器,用于存储计算机程序的存储器位于处理装置之外。处理器通过电路/电线与存储器连接,以读取并执行存储器中存储的计算机程序。又例如,处理装置可以为芯片或集成电路。
可选地,在通信装置1000为安装在网络设备中的芯片或集成电路这种实现方式中, 发送单元1300和接收单元1100可以为通信接口或者接口电路。例如,发送单元1300为输出接口或输出电路,接收单元1100为输入接口或输入电路。处理单元1200可以为该芯片或集成电路上集成的处理器或者微处理器。在此不做限定。
参见图12,图12是本申请提供的通信装置10的示意性结构图。该装置10包括处理器11,处理器11与存储器12耦合,存储器12用于存储计算机程序或指令和/或数据,处理器11用于执行存储器12存储的计算机程序或指令,或读取存储器12存储的数据,以执行上文各方法实施例中的方法。
可选地,处理器11为一个或多个。
可选地,存储器12为一个或多个。
可选地,该存储器12与该处理器11集成在一起,或者分离设置。
可选地,如图12所示,该装置10还包括收发器13,收发器13用于信号的接收和/或发送。例如,处理器11用于控制收发器13进行信号的接收和/或发送。
作为一种方案,该装置10用于实现上文各个方法实施例中由终端设备执行的操作。
例如,处理器11用于执行存储器12存储的计算机程序或指令,以实现上文各个方法实施例中由终端设备执行的相关操作。例如,实现图3或图6所示实施例中的终端设备执行的方法。
作为另一种方案,该装置10用于实现上文各个方法实施例中由网络设备执行的操作。
例如,处理器11用于执行存储器12存储的计算机程序或指令,以实现上文各个方法实施例中由网络设备执行的相关操作。例如,实现图3或图6所示实施例中的网络设备执行的方法。
此外,本申请还提供一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机指令,当计算机指令在计算机上运行时,使得本申请各方法实施例中由终端设备或网络设备执行的操作和/或流程被执行。
本申请还提供一种计算机程序产品,计算机程序产品包括计算机程序代码或指令,当计算机程序代码或指令在计算机上运行时,使得本申请各方法实施例中由终端设备或网络设备执行的操作和/或流程被执行。
此外,本申请还提供一种芯片,所述芯片包括处理器。用于存储计算机程序的存储器独立于芯片而设置,处理器用于执行存储器中存储的计算机程序,以使得任意一个方法实施例中由终端设备或网络设备执行的操作和/或处理被执行。
进一步地,所述芯片还可以包括通信接口。所述通信接口可以是输入/输出接口,也可以为接口电路等。进一步地,所述芯片还可以包括存储器。
此外,本申请还提供一种通信系统,包括本申请实施例中的终端设备和网络设备。
应理解,本申请实施例中的处理器可以是集成电路芯片,具有处理信号的能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。处理器可以是中央处理单元(central processing unit,CPU),还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。本申请实施例公开的方法的步骤可 以直接体现为硬件编码处理器执行完成,或者用编码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DRRAM)。
需要说明的是,当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时,存储器(存储模块)可以集成在处理器中。
还需要说明的是,本文描述的存储器旨在包括但不限于这些和任意其它适合类型存储器。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案或者该技术方案的 部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
应理解,说明书中的“根据”,也可以理解为“基于”。
还应理解,说明书通篇中提到的“实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此,在整个说明书各个实施例未必一定指相同的实施例。此外,这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
还应理解,本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分,不用于限定多个对象的大小、内容、顺序、时序、优先级或者重要程度等。例如,第一信息和第二信息并不表示信息量大小、内容、优先级或者重要程度等的不同。
还应理解,在本申请中,“当…时”、“若”以及“如果”均指在某种客观情况下网元会做出相应的处理,并非是限定时间,且也不要求网元实现时一定要有判断的动作,也不意味着存在其它限定。
还应理解,在本申请中,“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“至少一项(个)”或其类似表达,是指一项(个)或多项(个),即这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b,或c中的至少一项(个),表示:a,b,c,a和b,a和c,b和c,或a和b和c。
还应理解,本申请中出现的类似于“项目包括如下中的一项或多项:A,B,以及C”表述的含义,如无特别说明,通常是指该项目可以为如下中任一个:A;B;C;A和B;A和C;B和C;A,B和C;A和A;A,A和A;A,A和B;A,A和C,A,B和B;A,C和C;B和B,B,B和B,B,B和C,C和C;C,C和C,以及其他A,B和C的组合。以上是以A,B和C共3个元素进行举例来说明该项目的可选用条目,当表达为“项目包括如下中至少一种:A,B,……,以及X”时,即表达中具有更多元素时,那么该项目可以适用的条目也可以按照前述规则获得。
还应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。例如,A/B,表示:A或B。
还应理解,在本申请各实施例中,“A对应的B”表示B与A相关联,根据A可以确定B。但还应理解,根据A确定B并不意味着仅仅根据A确定B,还可以根据A和/或其它信息确定B。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (26)

  1. 一种通信方法,其特征在于,包括:
    从网络设备接收第一信息,所述第一信息指示第一时间单元的双工类型,所述双工类型包括全双工和非全双工;
    从所述网络设备接收第二信息,所述第二信息指示所述第一时间单元的传输方向;
    根据所述第一信息和所述第二信息确定在所述第一时间单元上,第一载波的传输方向。
  2. 根据权利要求1所述的方法,其特征在于,所述第一信息指示所述第一时间单元的双工类型为全双工,在所述第一时间单元上,所述第一载波包括第一子带和第二子带,所述第一子带和所述第二子带的传输方向不同,其中,所述第一子带和所述第二子带在频域上不重叠、部分重叠或完全重叠。
  3. 根据权利要求2所述的方法,其特征在于,所述根据所述第一信息和所述第二信息确定在所述第一时间单元上,第一载波的传输方向,包括:
    确定所述第一子带的传输方向为所述第二信息指示的传输方向,其中,在所述第一时间单元包括的所有或部分符号上,所述第一子带的传输方向与所述第二子带的传输方向相反。
  4. 根据权利要求2或3所述的方法,其特征在于,所述第二信息指示所述第一时间单元中的N个符号的传输方向为下行,N为正整数,
    所述根据所述第一信息和所述第二信息确定在所述第一时间单元上,第一载波的传输方向,包括:
    确定在所述第一时间单元包括的所述N个符号上,所述第一子带的传输方向为下行,所述第二子带的传输方向为上行。
  5. 根据权利要求2至4中任一项所述的方法,其特征在于,所述方法还包括:
    从所述网络设备接收第三信息,所述第三信息指示所述第一子带和所述第二子带所占的比例;
    根据所述第三信息确定所述第一子带和所述第二子带。
  6. 根据权利要求2至4中任一项所述的方法,所述第一信息还指示所述第一子带和所述第二子带所占的比例。
  7. 一种通信方法,其特征在于,包括:
    向终端设备发送第一信息,所述第一信息指示第一时间单元的双工类型,所述双工类型包括全双工和非全双工;
    向所述终端设备发送第二信息,所述第二信息指示所述第一时间单元的传输方向。
  8. 根据权利要求7所述的方法,其特征在于,所述第一信息指示所述第一时间单元的双工类型为全双工,在所述第一时间单元上,第一载波包括第一子带和第二子带,所述第一子带和所述第二子带的传输方向不同,其中,所述第一子带和所述第二子带在频域上不重叠、部分重叠或完全重叠。
  9. 根据权利要求8所述的方法,其特征在于,所述第一子带的传输方向为所述第二信息指示的传输方向,其中,在所述第一时间单元包括的所有或部分符号上,所述第一子 带的传输方向与所述第二子带的传输方向相反。
  10. 根据权利要求8或9所述的方法,其特征在于,所述第二信息指示所述第一时间单元中的N个符号的传输方向为下行,在所述第一时间单元包括的所述N个符号上,所述第一子带的传输方向为下行,所述第二子带的传输方向为上行。
  11. 根据权利要求8至10中任一项所述的方法,其特征在于,所述方法还包括:
    向所述终端设备发送第三信息,所述第三信息指示所述第一子带和所述第二子带所占的比例。
  12. 根据权利要求8至10中任一项所述的方法,所述第一信息还指示所述第一子带和所述第二子带所占的比例。
  13. 一种通信方法,其特征在于,包括:
    从网络设备接收第四信息,所述第四信息包括N个时隙格式指示SFI,所述第一SFI为所述N个SFI中的一个,所述第一SFI指示M个时隙格式的组合,所述M个时隙格式中的第一时隙格式指示第一资源的时隙格式,所述第一资源位于第一时间单元和第一载波包含的第一子带,其中,所述第一时间单元为全双工时间单元,N和M均为正整数;
    根据所述第一SFI,确定在所述第一资源上的传输方向。
  14. 一种通信方法,其特征在于,包括:
    确定第四信息,所述第四信息包括N个时隙格式指示SFI,所述第一SFI为所述N个SFI中的一个,所述第一SFI指示M个时隙格式的组合,所述M个时隙格式中的第一时隙格式指示第一资源的时隙格式,所述第一资源位于第一时间单元和第一载波包含的第一子带,其中,所述第一时间单元为全双工时间单元,N和M均为正整数;
    向终端设备发送所述第四信息。
  15. 根据权利要求13或14所述的方法,其特征在于,在所述第一时间单元上,所述第一载波还包括第二子带,所述第一子带和所述第二子带的传输方向不同,其中,所述第一子带和所述第二子带在频域上不重叠、部分重叠或完全重叠。
  16. 根据权利要求15所述的方法,其特征在于,第二资源的传输方向为上行,所述第二资源位于所述第一时间单元和所述第二子带。
  17. 根据权利要求15所述的方法,其特征在于,所述M个时隙格式中的第二时隙格式指示第二资源的时隙格式,所述第二资源位于所述第一时间单元和所述第二子带。
  18. 根据权利要求17所述的方法,其特征在于,
    所述第一时隙格式和所述第二时隙格式为所述M个时隙格式中相邻的两个时隙格式。
  19. 根据权利要求13至18中任一项所述的方法,其特征在于,所述第一时隙格式还指示第三资源的时隙格式,所述第三资源位于第一时间单元和第一载波包含的第三子带,所述第一资源的时隙格式和所述第三资源的时隙格式相同。
  20. 根据权利要求15至17中任一项所述的方法,其特征在于,
    所述M个时隙格式中的前M/2个时隙格式分别指示位于M/2个时间单元且位于所述第一子带上的时隙格式;
    所述M个时隙格式中的后M/2个时隙格式分别指示位于M/2个时间单元且位于所述第二子带上的时隙格式。
  21. 根据权利要求13至20中任一项所述的方法,其特征在于,
    第四信息通过第一无线网络临时标识RNTI加扰,所述第一RNTI指示从第一集合中确定所述M个时隙格式的组合,所述第一集合中仅包括为全双工时隙配置的至少一个组合,所述至少一个组合中的每一个组合中包括至少一个时隙格式。
  22. 根据权利要求13至20中任一项所述的方法,其特征在于,
    第四信息通过第二RNTI加扰,所述第二RNTI指示从第二集合中确定所述M个时隙格式的组合,所述第二集合中包括为全双工时隙配置的至少一个组合和为非全双工时隙配置的至少一个组合,所述至少一个组合中的每一个组合中包括至少一个时隙格式。
  23. 一种通信装置,其特征在于,包括用于执行如权利要求1至6,或,7至12,或,13和15至22,或,14至22中的任一项所述方法的模块。
  24. 一种通信装置,其特征在于,所述通信装置包括至少一个处理器和至少一个存储器,所述至少一个存储器用于存储计算机程序或指令,所述至少一个处理器用于执行存储器中的所述计算机程序或指令,使得权利要求1至6中任一项所述的方法被执行,使得权利要求7至12中任一项所述的方法被执行,使得权利要求13和15至22中任一项所述的方法被执行,或者,使得权利要求14至22中任一项所述的方法被执行。
  25. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有计算机指令,当所述计算机指令在计算机上运行时,如权利要求1至6中任一项所述的方法被执行,如权利要求7至12中任一项所述的方法被执行,如权利要求13和15至22中任一项所述的方法被执行,或者,如权利要求14至22中任一项所述的方法被执行。
  26. 一种计算机程序产品,其特征在于,所述计算机程序产品中包括计算机程序代码,当所述计算机程序代码在计算机上运行时,如权利要求1至6中任一项所述的方法被执行,如权利要求7至12中任一项所述的方法被执行,如权利要求13和15至22中任一项所述的方法被执行,或者,如权利要求14至22中任一项所述的方法被执行。
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CN109309545A (zh) * 2017-07-26 2019-02-05 华为技术有限公司 一种指示时隙格式的方法、设备及系统
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CN109309545A (zh) * 2017-07-26 2019-02-05 华为技术有限公司 一种指示时隙格式的方法、设备及系统
US20210400637A1 (en) * 2020-06-19 2021-12-23 Qualcomm Incorporated Scheduled entity behavior in full-duplex slot format
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