WO2021008416A1 - 确定资源分配的方法和装置 - Google Patents
确定资源分配的方法和装置 Download PDFInfo
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- WO2021008416A1 WO2021008416A1 PCT/CN2020/100847 CN2020100847W WO2021008416A1 WO 2021008416 A1 WO2021008416 A1 WO 2021008416A1 CN 2020100847 W CN2020100847 W CN 2020100847W WO 2021008416 A1 WO2021008416 A1 WO 2021008416A1
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- time domain
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
Definitions
- This application relates to the field of communications, and more specifically, to a method and device for determining resource allocation.
- the International Telecommunication Union (ITU) defines three types of application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications communications, URLLC) and massive machine type communications (mMTC).
- eMBB enhanced mobile broadband
- URLLC ultra-reliable and low-latency communications
- mMTC massive machine type communications
- URLLC technology has relatively high requirements for reliability.
- a commonly used method is to use the diversity gain of the channel.
- the diversity gain includes the diversity of the channel in at least one dimension such as time domain, frequency domain, and space domain.
- an example of the spatial diversity gain of the channel is the independent channel diversity gain of multiple stations.
- terminal equipment may be scheduled by multiple base stations, for example, multiple base stations schedule the terminal equipment to receive multiple copies of data.
- the multi-station cooperation technology it supports repeated transmission of multiple stations in the time domain, and uses the irrelevance of the channel in time to improve the robustness of the transmission.
- DCI downlink control information
- the present application provides a method and device for determining resource allocation, which helps to save DCI overhead.
- a method for determining resource allocation including: a terminal device determines a first number of transmissions according to a first preset relationship, a start position of a time domain resource, and a duration of the time domain resource, the first The number of transmissions refers to the number of repeated transmissions of data in a time domain unit; the terminal device determines the time domain position of at least one data transmission unit in the first time domain unit according to the first number of transmissions; the terminal device is Data transmission is performed on at least one data transmission unit in the first time domain unit.
- the terminal device determines the first transmission times through the first preset relationship, and the network device does not need to dynamically configure the offset through the DCI, which helps save the DCI overhead.
- the first time domain unit is a time slot; correspondingly, one data transmission unit is: time domain resources occupied by transmitting a physical downlink shared channel.
- a data transmission unit may be a time domain resource occupied by transmitting the same physical downlink PDSCH at a time.
- the same PDSCH can be repeatedly transmitted multiple times, each time occupying one data transmission unit.
- the same PDSCH may be from the same TRP or from different TRPs.
- the same PDSCH from different TRPs is distinguished by different transmission configuration indication (TCI) states. .
- TCI transmission configuration indication
- the first preset relationship refers to: the corresponding relationship between the starting position of the time domain resource, the duration of the time domain resource, and the first number of transmissions;
- the terminal device determines the first number of transmissions according to the first preset relationship, the starting position of the time domain resource, and the duration of the time domain resource, including: the terminal device is based on the starting position of the time domain resource and the time domain.
- the duration of the domain resource is searched for the corresponding first transmission count in the first preset relationship.
- the first preset relationship is a table composed of the start position of the time domain resource, the duration of the time domain resource, and the first transmission number.
- the terminal device can obtain the first transmission times by looking up the table.
- the terminal device determines the first number of transmissions according to the first preset relationship, the starting position of the time domain resource, and the duration of the time domain resource, including: the terminal device uses the following Formula to calculate the first transmission times:
- K1 is the number of first transmissions
- S represents the starting position of the time domain resource
- L represents the duration of the time domain resource
- O1 represents a time domain unit between each data transmission unit. Symbol interval.
- the terminal device substitutes S, L, and O1 into the above formula to calculate the first number of transmissions.
- S and L can be configured by network equipment.
- the method further includes: the terminal device receives radio resource control RRC signaling from the network device, the RRC signaling includes a second number of transmissions, and the second number of transmissions is indicated by the network device The number of repeated data transmissions in the time domain unit; wherein the terminal device determines the time domain position of at least one data transmission unit in the first time domain unit according to the first transmission number, including: the terminal device is Select the smallest number of transmissions from the second number of transmissions and the first number of transmissions; the terminal device determines the time domain of at least one data transmission unit in the first time domain unit according to the minimum number of transmissions position.
- RRC signaling includes a second number of transmissions, and the second number of transmissions is indicated by the network device The number of repeated data transmissions in the time domain unit
- the terminal device determines the time domain position of at least one data transmission unit in the first time domain unit according to the first transmission number, including: the terminal device is Select the smallest number of transmissions from the second number of transmissions and the first number of transmissions; the
- the terminal device receives the second number of transmissions indicated by the network device, compares the size of the first number of transmissions with the second number of transmissions, and selects the smallest number of transmissions to determine the time domain position of the data transmission unit, thereby avoiding time domain resource damage. Limited circumstances.
- the method further includes: the terminal device receives downlink control information DCI from the network device, where the DCI is used to indicate the start and length value of the time domain resource, for example, the SLIV domain;
- the start and length values determine the start position of the time domain resource and the duration of the time domain resource.
- the terminal device can obtain the start and length values by receiving the DCI from the network device, and then find the corresponding start position of the time domain resource and the duration of the time domain resource based on the start and length value, thereby You can get S and L.
- the terminal device may receive the starting position of the time domain resource and the duration of the time domain resource delivered by the network device through DCI.
- a method for determining resource allocation including: a network device sends instruction information to a terminal device, the instruction information instructing the terminal device to determine a first number of transmissions according to a first preset relationship, and the first preset
- the relationship refers to: the corresponding relationship between the starting position of the time domain resource, the duration of the time domain resource, and the first transmission count; the network device determines the first transmission count, and based on the first transmission count, The time domain location of at least one data transmission unit is determined in the first time domain unit; the network device performs data transmission on at least one data transmission unit in the first time domain unit. In this way, the network device can also search for the corresponding first number of transmissions through the first preset relationship.
- the indication information is carried in RRC signaling.
- the network device may perform a table look-up based on the first preset relationship to obtain the first transmission times, or may determine the first transmission times by itself.
- the first time domain unit is a time slot; correspondingly, one data transmission unit is: time domain resources occupied by transmitting a physical downlink shared channel.
- a data transmission unit may be a time domain resource occupied by transmitting the same physical downlink PDSCH.
- the same PDSCH can be repeatedly transmitted multiple times, each time occupying one data transmission unit.
- the same PDSCH may be from the same TRP or from different TRPs, and the same PDSCH from different TRPs is distinguished by different TCIstates.
- the first preset relationship refers to: the corresponding relationship between the starting position of the time domain resource, the duration of the time domain resource, and the first number of transmissions;
- the network device determines the first number of transmissions according to the first preset relationship, the starting position of the time domain resource, and the duration of the time domain resource, including: the network device is based on the starting position of the time domain resource and the time domain.
- the duration of the domain resource is searched for the corresponding first transmission count in the first preset relationship.
- the network device determines the first number of transmissions according to the first preset relationship, the starting position of the time domain resource, and the duration of the time domain resource, including: the network device uses the following formula , Calculate the first transmission times:
- K1 is the number of first transmissions
- S represents the starting position of the time domain resource
- L represents the duration of the time domain resource
- O1 represents a time domain unit between each data transmission unit. Symbol interval.
- the method further includes: the network device sends radio resource control RRC signaling to the terminal device, the RRC signaling includes a second number of transmissions, and the second number of transmissions is indicated to the terminal device The number of repeated transmissions of data in time domain units.
- the network device sends the second transmission times to the terminal equipment so that the terminal equipment can compare the first transmission times and the second transmission times, and select the smallest transmission times to determine the time domain position of the data transmission unit, thereby avoiding the occurrence of time.
- the domain resource is limited.
- the method further includes: the network device sends downlink control information DCI to the terminal device, where the DCI is used to indicate the start and length values of the time domain resources, for example, the start and length indicate the SLIV domain.
- the network device issues the DCI to the terminal device so that the terminal device can obtain the start and length value of the time domain resource, and then find the corresponding start position and the start position of the time domain resource based on the start and length value.
- the duration of the time domain resource so that S and L can be obtained.
- the network device directly issues the start position of the time domain resource and the duration of the time domain resource to the terminal device through DCI.
- a method for determining resource allocation including: a terminal device obtains a first time domain offset; the first time domain offset is a first data transmission unit corresponding to a first data transmission unit in a second time domain unit.
- the start positions of the time domain resources corresponding to the first data transmission unit in the first time domain unit used by the terminal device are the same, where the first time domain unit is the first time domain in the time domain unit that repeatedly transmits data Unit, the second time domain unit is any time domain unit other than the first time domain unit in the time domain unit for repeatedly transmitting data; the terminal device is The time domain position of the first data transmission unit is determined in the second time domain unit.
- the terminal device can determine the time domain position of the first data transmission unit of the second time domain unit based on the first time domain offset, instead of using the time domain resource corresponding to the first data transmission unit of the first time domain unit.
- the starting position which can give up resource positions for emergency services or higher priority services.
- the method further includes: the terminal device acquiring a first number of transmissions, where the first number of transmissions refers to the number of repeated data transmissions in a time domain unit.
- the terminal device can obtain the number of repeated data transmissions in a time domain unit by obtaining the first transmission number, for example, the number of repeated data transmissions in the first time domain unit, or the repeated transmission of data in the second time domain unit. The number of times.
- the method further includes: the terminal device according to the first time domain offset, the first number of transmissions, and the second time domain offset, when the second time domain is offset
- the time domain position of at least one data transmission unit is determined in the domain unit; the second time domain offset represents the symbol interval between each data transmission unit in the second time domain unit.
- the terminal device can obtain the time domain position of one or more data transmission units in the second time domain unit by combining the first time domain offset, the first number of transmissions, and the second time domain offset.
- acquiring the first number of transmissions by the terminal device includes: the terminal device receives first signaling from a network device, the first signaling includes the first transmission number, and the first signaling It is any one of the following: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE. Therefore, the terminal device obtains the first transmission times in a flexible manner.
- acquiring the first time domain offset by the terminal device includes: receiving, by the terminal device, second signaling from a network device, the second signaling including the first time domain offset, and
- the second signaling is any one of the following: downlink control information DCI, radio resource control RRC, and medium access control layer control element MAC CE. Therefore, the terminal device obtains the first time domain offset in a flexible manner.
- the method further includes: the terminal device obtains a third number of transmissions, where the third number of transmissions is the same as the number of time domain units that repeatedly transmit data; the terminal device According to the third transmission count, data transmission is performed on the same number of time domain units as the third transmission count.
- the time domain unit for repeatedly transmitting data may include multiple time domain units.
- the multiple time domain units are multiple time slots, and the third number of transmissions is the same as the number of multiple time slots.
- the method further includes: the terminal device receives third signaling from the network device, the third signaling includes the second time domain offset, and the third signaling is the following Any item: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE. Therefore, the terminal device obtains the second time domain offset in a flexible manner.
- a method for determining resource allocation including: a network device obtains a first time domain offset; the first time domain offset is a first data transmission unit corresponding to a first data transmission unit in a second time domain unit.
- the starting position of the time domain resource corresponding to the first data transmission unit in the first time domain unit used by the terminal device is the same as the starting position of the time domain resource, wherein the first time domain unit is a plurality of repeated data transmission units.
- the first time domain unit in the time domain unit, and the second time domain unit is any time domain unit except the first time domain unit among the multiple time domain units that repeatedly transmit data; the network The device determines the time domain position of the first data transmission unit in the second time domain unit according to the first time domain offset. Therefore, the network device can determine the time domain position of the first data transmission unit of the second time domain unit through the first time domain offset.
- the method further includes: the network device sends first signaling to the terminal device, the first signaling includes a first transmission count, and the first transmission count refers to
- the first signaling is any one of the following: downlink control information DCI, radio resource control RRC, and medium access control layer control element MAC CE. Therefore, the manner in which the network device notifies the terminal device of the first number of transmissions is more flexible.
- the method further includes: the network device sends second signaling to the terminal device, the second signaling includes the first time domain offset, and the second signaling It is any one of the following: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE. Therefore, the manner in which the network device notifies the terminal device of the first time domain offset is more flexible.
- the method further includes: the network device sends third signaling to the terminal device, the third signaling includes a second time domain offset, and the third signaling is as follows Any of the items: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE. Therefore, the manner in which the network device notifies the terminal device of the second time domain offset is more flexible.
- a method for determining resource allocation including: a terminal device determines a first transmission count based on a duration of a time domain resource, where the first transmission count refers to the number of repeated transmissions of data in a time domain unit The terminal device determines the time domain position of at least one data transmission unit in the first time domain unit according to the first number of transmissions; the terminal device at least one data transmission unit in the first time domain unit Data transfer on Therefore, the terminal device can determine the first number of transmissions according to the duration of the time domain resource.
- the terminal device determining the first number of transmissions based on the duration of the time domain resource includes: the terminal device based on the first preset relationship and the duration of the time domain resource , Determining the first number of transmissions, wherein the first preset relationship refers to a corresponding relationship between the duration of the time domain resource and the first number of transmissions.
- the terminal device may determine the first number of transmissions corresponding to the duration of the time domain resource in combination with the first preset relationship.
- a method for determining resource allocation including: a terminal device determines a first transmission count based on the number of TCI states indicated by a transmission configuration, where the first transmission count refers to repeated transmission of data in a time domain unit The terminal device determines the time domain position of at least one data transmission unit in a first time domain unit according to the first transmission number; at least one data of the terminal device in the first time domain unit Data transmission is performed on the transmission unit. Therefore, the terminal device can determine the first number of transmissions according to the number of TCI states.
- the terminal device determining the first number of transmissions based on the number of TCI states includes: the terminal device determining the first number of transmissions based on a first preset relationship, where the The first preset relationship refers to the corresponding relationship between the number of TCI states and the first transmission times.
- the terminal device may determine the first number of transmissions corresponding to the number of TCI states in combination with the first preset relationship.
- a method for determining resource allocation including: a terminal device determines a first transmission count based on the number of demodulation reference signal DMRS ports, where the first transmission count refers to repeated transmission of data in a time domain unit The terminal device determines the time domain position of at least one data transmission unit in a first time domain unit according to the first transmission number; at least one data of the terminal device in the first time domain unit Data transmission is performed on the transmission unit. Therefore, the terminal device can determine the first transmission times according to the number of DMRS ports.
- the terminal device determining the first number of transmissions based on the number of DMRS ports includes: the terminal device determining the first number of transmissions based on a first preset relationship, wherein the first number of transmissions A preset relationship refers to the corresponding relationship between the number of DMRS ports and the first transmission times.
- the terminal device may determine the first transmission times corresponding to the number of DMRS ports in combination with the first preset relationship.
- a method for determining resource allocation including: a terminal device receives radio resource control RRC signaling from a network device, the RRC signaling is used to notify the terminal device of the first time domain unit; The terminal device determines the first number of transmissions according to the first preset relationship and the duration of the time domain resource, where the first number of transmissions refers to the number of repeated data transmissions in the first time domain unit; the terminal device According to the first transmission times, the time domain position of at least one data transmission unit is determined in the first time domain unit; the terminal device performs data on at least one data transmission unit in the first time domain unit. transmission. Therefore, the terminal device can determine the first transmission times or in which time domain units the RRC signaling sent by the network device.
- the RRC signaling includes one or more of the following information: the number of symbols occupied by the first time domain unit, the start symbol position of the first time domain unit, and the first time domain unit The end symbol position of the unit.
- the network device sends signaling to the terminal device to indicate to the terminal device that one of a plurality of preset first transmission times is effective; after receiving the signaling, the terminal device determines the corresponding first transmission times .
- a method for determining resource allocation including: a terminal device receives RRC signaling, where the RRC signaling is used to indicate a first transmission count, and the first transmission count refers to repeating in a time domain unit The number of times of data transmission, the first number of transmissions is associated with the duration of the time domain resource; the terminal device determines the time domain position of at least one data transmission unit in the first time domain unit according to the first number of transmissions ; The terminal device performs data transmission on at least one data transmission unit in the first time domain unit. Therefore, the terminal device can obtain the first number of transmissions through the RRC signaling sent by the network device.
- a method for determining resource allocation including: a network device determines radio resource control RRC signaling, where the RRC signaling is used to indicate a first transmission count, and the first transmission count refers to a time domain The number of repeated data transmissions in the unit, and the first number of transmissions is associated with the duration of the time domain resource; the network device sends RRC signaling to the terminal device. Therefore, the network device can provide the terminal device with the first number of transmissions through RRC signaling.
- a communication device which includes various modules or units for executing the method in any one of the possible implementations of the first aspect, or including any one of the possible implementations of the third aspect
- Each module or unit of the method in the method or includes each module or unit used to execute any one of the possible implementations of the fifth aspect, or includes any one possible implementation of the sixth aspect
- Each module or unit of the method in the manner or includes each module or unit used to execute any one of the possible implementation manners of the seventh aspect, or includes any one possible implementation of the eighth aspect
- a communication device including a processor.
- the processor is coupled with the memory and can be used to execute instructions in the memory to implement the method in any one of the possible implementation manners of the first aspect, or to implement the method in any one of the possible implementation manners of the third aspect.
- to implement the method in any one of the possible implementations of the fifth aspect, or to implement the method in any of the possible implementations of the sixth aspect, or to implement any of the seventh aspect The method in one possible implementation manner, or to implement the method in any one of the possible implementation manners of the eighth aspect, or to implement the method in any one of the possible implementation manners of the ninth aspect.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled with the communication interface.
- the communication device is a terminal device.
- the communication interface may be a transceiver or an input/output interface.
- the communication device is a chip configured in a terminal device.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- a communication device which includes modules or units used to execute any of the methods in the second aspect, or includes any one of the possible implementations in the fourth aspect
- a communication device including a processor.
- the processor is coupled with the memory and can be used to execute instructions in the memory to implement the method in any possible implementation manner of the second aspect, or to implement the method in any possible implementation manner of the fourth aspect. , Or, to implement the method in any one of the possible implementation manners of the tenth aspect.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled with the communication interface.
- the communication device is a network device.
- the communication interface may be a transceiver, or an input/output interface.
- the communication device is a chip configured in a network device.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- a processor including: an input circuit, an output circuit, and a processing circuit.
- the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any one of the possible implementation manners of the first aspect.
- the foregoing processor may be a chip
- the input circuit may be an input pin
- the output circuit may be an output pin
- the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
- the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
- the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by the transmitter
- the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
- the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
- a processor including: an input circuit, an output circuit, and a processing circuit.
- the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any one of the possible implementation manners of the second aspect.
- the foregoing processor may be a chip
- the input circuit may be an input pin
- the output circuit may be an output pin
- the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
- the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
- the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by the transmitter
- the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
- the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
- a processing device including a processor and a memory.
- the processor is used to read instructions stored in the memory, and can receive signals through a receiver and transmit signals through a transmitter to execute the method in any one of the possible implementations of the first aspect, or to execute the third aspect described above
- the method in any one of the possible implementation manners, or to perform the method in any one of the possible implementation manners of the above fifth aspect, or to perform the method in any one of the possible implementation manners of the above sixth aspect, or ,
- To perform the method in any one of the possible implementations of the seventh aspect, or to perform the method in any of the possible implementations of the eighth aspect, or to perform any of the possible implementations of the ninth aspect The method in the implementation mode.
- processors there are one or more processors and one or more memories.
- the memory may be integrated with the processor, or the memory and the processor may be provided separately.
- the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of memory and the setting mode of the memory and the processor.
- ROM read only memory
- receiving information or data may be a process of inputting the information from the processor, and sending information or data may be a process of receiving output capability information by the processor.
- the data output by the processor can be output to the transmitter, and the input data received by the processor can come from the receiver.
- the transmitter and receiver can be collectively referred to as a transceiver.
- a processing device including a processor and a memory.
- the processor is used to read instructions stored in the memory, and can receive signals through a receiver, and transmit signals through a transmitter to execute the method in any one of the possible implementations of the second aspect, or to execute the fourth aspect described above The method in any one of the possible implementation manners, or to execute the method in any one of the possible implementation manners of the tenth aspect.
- processors there are one or more processors and one or more memories.
- the memory may be integrated with the processor, or the memory and the processor may be provided separately.
- the memory may be a non-transitory (non-transitory) memory, such as a read-only memory ROM, which may be integrated with the processor on the same chip, or may be set on different chips.
- a non-transitory memory such as a read-only memory ROM
- the implementation of this application The example does not limit the type of memory and how the memory and processor are set up.
- sending information or data may be a process of outputting the information from the processor, and receiving information or data may be a process of receiving input capability information by the processor.
- the data output by the processor can be output to the transmitter, and the input data received by the processor can come from the receiver.
- the transmitter and receiver can be collectively referred to as a transceiver.
- a chip including at least one processor and an interface.
- the processor runs so that the chip executes the method in any one of the possible implementations of the first aspect, or executes the method in any one of the possible implementations of the third aspect, or executes any of the fifth aspects.
- the method in the possible implementation manner, or the method in any one of the possible implementation manners of the above sixth aspect, or the method in any one of the possible implementation manners of the seventh aspect above, or the execution of the above eighth aspect The method in any one of the possible implementation manners, or the method in any one of the possible implementation manners of the foregoing ninth aspect is executed.
- the processor may be a logic circuit, an integrated circuit, or the like.
- the processor is a dedicated processor.
- a chip including at least one processor and an interface.
- the processor runs so that the chip executes the method in any one of the possible implementations of the second aspect, or executes the method in any of the possible implementations of the fourth aspect, or executes any of the tenth aspects.
- the method in the possible implementation mode.
- the processor may be a logic circuit, an integrated circuit, or the like.
- the processor is a general-purpose processor.
- a computer program product includes: a computer program (also called code, or instruction), which when the computer program is executed, causes a computer to execute the first aspect above ,
- a computer program also called code, or instruction
- a computer program product includes: a computer program (also called code, or instruction), which when the computer program is executed, causes a computer to execute the second aspect above , The method in any one of the possible implementation manners of the fourth aspect or the tenth aspect.
- a computer program also called code, or instruction
- a computer-readable medium stores a computer program (also referred to as code, or instruction) when it runs on a computer, so that the computer executes the above-mentioned first aspect ,
- a computer program also referred to as code, or instruction
- a computer-readable medium stores a computer program (also referred to as code, or instruction) when it runs on a computer, so that the computer executes the above-mentioned second aspect , The method in the fourth or tenth aspect.
- a computer program also referred to as code, or instruction
- a communication system including the aforementioned network equipment and terminal equipment.
- a chip including at least one processor and an interface.
- the processor is configured to run a computer program stored therein, so that the chip executes the method in any one of the possible implementation manners of the first aspect to the tenth aspect.
- the chip may also include a memory coupled with the processor, configured to store a computer program, and the processor is configured to execute the computer program stored in the memory, so that the chip executes any one of the first aspect to the tenth aspect One of the possible implementation methods.
- the coupling is mutually independent or integrated.
- the processor may be a logic circuit, an integrated circuit, or the like.
- the processor is a general-purpose processor.
- Figure 1 is a schematic diagram of an application scenario of multi-site transmission in this application
- Fig. 2 is another example diagram of a system architecture applying an embodiment of the present application
- Figure 3 is a schematic diagram of resource allocation in a time slot
- Fig. 4 is a schematic flowchart of a method for determining resource allocation according to an embodiment of the present application
- FIG. 5 is a schematic diagram of an example of resource allocation in a time slot using an embodiment of the present application
- FIG. 6 is a schematic diagram of another example of resource allocation in a time slot using an embodiment of the present application.
- FIG. 7 is a schematic flowchart of a method for determining resource allocation according to another embodiment of the present application.
- FIG. 8 is a schematic diagram of an example of a method for determining resource allocation according to another embodiment of the present application.
- FIG. 9 is a schematic diagram of another example of a method for determining resource allocation according to another embodiment of the present application.
- FIG. 10 is a schematic diagram of another example of the first time domain offset in an embodiment of the present application.
- FIG. 11 is a schematic block diagram of a communication device provided by an embodiment of the present application.
- FIG. 12 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
- FIG. 13 is a schematic structural diagram of a network device provided by an embodiment of the present application.
- GSM global system for mobile communications
- CDMA code division multiple access
- WCDMA broadband code division multiple access
- GPRS general packet radio service
- LTE long term evolution
- LTE frequency division duplex FDD
- TDD LTE Time division duplex
- UMTS universal mobile telecommunication system
- WiMAX worldwide interoperability for microwave access
- 5G fifth generation
- NR new radio
- V2X vehicle to everything
- the V2X system may specifically be any of the following systems: vehicle-to-network (V2N), vehicle-to-vehicle (V2V), vehicle-to-pedestrian (V2P), and Vehicle to infrastructure communication (V2I), etc.
- V2N vehicle-to-network
- V2V vehicle-to-vehicle
- V2P vehicle-to-pedestrian
- V2I Vehicle to infrastructure communication
- Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
- UE user equipment
- MS mobile station
- MT mobile terminal
- some examples of terminals are: mobile phones (mobile phones), tablets, notebook computers, palmtop computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, and augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart grid (smart grid) Wireless terminals in transportation safety (transportation safety), wireless terminals in smart city (smart city), wireless terminals in smart home (smart home), vehicle to everything (V2X) equipment, in-vehicle Communication devices, in-vehicle communication chips, etc.
- UE user equipment
- MS mobile station
- MT mobile terminal
- V2X vehicle to everything
- the network device is a device in the wireless network, for example, a radio access network (RAN) node that connects the terminal to the wireless network.
- RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit) , BBU), or wireless fidelity (Wifi) access point (AP), etc.
- a network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.
- the base station or transmission point may also include a radio unit (RU).
- CU implements some functions of gNB or transmission point
- DU implements some functions of gNB or transmission point, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer Function, DU realizes the functions of radio link control (radio link control, RLC), media access control (media access control, MAC), and physical (physical, PHY) layers.
- RRC radio resource control
- PDCP packet data convergence protocol
- DU realizes the functions of radio link control (radio link control, RLC), media access control (media access control, MAC), and physical (physical, PHY) layers.
- the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
- the CU can be divided into network equipment in the access network RAN, and the CU can also be divided into network equipment in the core network CN, which is not limited here.
- the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
- the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
- the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
- the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
- the embodiments of the application do not specifically limit the specific structure of the execution subject of the methods provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided according to the embodiments of the application.
- the execution subject of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute the program.
- computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
- magnetic storage devices for example, hard disks, floppy disks, or tapes, etc.
- optical disks for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs) Etc.
- smart cards and flash memory devices for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.
- various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
- the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
- Fig. 1 is a schematic diagram of an application scenario of multi-site transmission to which an embodiment of the present application is applied.
- the terminal device 110 is covered by multiple network devices 120.
- the terminal device 110 can communicate with the network device 120.
- the terminal device 110 may be scheduled by multiple network devices 120.
- the terminal device 110 may receive data sent by multiple network devices 120, and may also send data to multiple network devices 120.
- the terminal equipment performs multi-station repeated transmission in the time domain, and uses the incoherence of the channel in time to improve the robustness of the transmission.
- the transmission direction is not limited here, and it can be uplink transmission or downlink transmission.
- Transmission includes “receive” and "send”.
- FIG 2 is another example diagram of a system architecture to which an embodiment of the present application is applied.
- the communication system includes: a V2X application server, a V2X device (including a V2X device 1 and a V2X device 2), and a network device. Communication between V2X devices is realized through the PC5 interface. The communication link between V2X devices is defined as a sidelink (SL).
- SL sidelink
- the communication between the V2X device and the V2X application server needs to be forwarded through the network device, specifically: for the uplink, the sending end V2X device sends the V2X data to the network device through the Uu interface, and the network device sends the data to the V2X application server for processing, and then The V2X application server delivers to the receiving V2X device; for the downlink, the V2X application server sends the V2X data to the network device, and the network device sends the V2X data to the V2X device through the Uu interface.
- V2X device in FIG. 2 is an example of a terminal device. It should also be understood that the arrow flow direction in FIG. 2 is only exemplarily described with the V2X device 1 and does not constitute a limitation to the embodiment of the present application. In fact, the communication between the V2X device 1 and the V2X device 2 can be bidirectional, and the V2X device 2 Device 2 can also perform uplink communication with network devices, which is not specifically limited.
- the time domain unit may include sub-frames, slots, mini-slots (or mini-slots), symbols, and so on.
- a mini-slot is a time-domain unit whose time-domain length is less than a time slot.
- a slot can include 14 time domain symbols, and the number of time domain symbols included in a mini-slot is less than 14, such as 2 or 4 or 7, etc.; or, a slot can include 7 time-domain symbols, and one micro-slot
- the number of time-domain symbols included in the time slot is less than 7, such as 2 or 4, and the specific value is not limited.
- the data transmission unit included in the time domain unit refers to a unit used for transmitting data (for example, downlink data or uplink data), for example, used for transmitting a physical downlink shared channel (PDSCH).
- the time domain unit may include one or more data transmission units.
- the time domain unit is a slot, and correspondingly, each data transmission unit in the slot may be composed of one or more symbols in the slot.
- the network device can dynamically indicate the time domain offset for the terminal device through downlink control information (DCI), such as the symbol offset.
- DCI downlink control information
- the symbol offset is used to indicate the offset between the last symbol of the time domain resource of the first segment of data transmission and the first symbol of the time domain resource of the second segment of data in the slot.
- the terminal device obtains the time domain resource allocation in a slot based on the symbol offset, the starting symbol position S, the symbol length L, and the number of repeated data transmissions in the slot. Take the example in Figure 3 for description.
- RRC radio resource control
- the terminal device can obtain the resource allocation as shown in FIG. 3 based on S, L, K1, and O1.
- the slot includes two pieces of time domain resources for repeated transmission of data.
- the time domain resources of the first segment of data transmission occupy symbols 1 and 2.
- the symbol 1 and symbol 2 are called a data transmission unit
- the time domain resources of the second segment of data transmission occupy symbols 6 and 7.
- the symbol 6 and symbol 7 are called a data transmission unit.
- the interval between the time domain resource for transmitting data in the first segment and the time domain resource for transmitting data at the second end is 3 symbols.
- the number of repeated transmissions is 2, and the slot includes two time domain resources for transmitting data.
- the inventor of the present application found that this method requires an offset O1 to be added to the DCI, thereby increasing the DCI overhead.
- a method for determining resource allocation is proposed in the embodiment of the present application. Without increasing the DCI overhead, the location of the time-domain resource for repeated transmission in the slot can be determined.
- FIG. 4 shows a schematic flowchart of a method 400 for determining resource allocation according to an embodiment of the present application. As shown in FIG. 4, the method 400 includes:
- the terminal device determines a first transmission count according to the first preset relationship, the start position of the time domain resource, and the duration of the time domain resource, where the first transmission count refers to the number of repeated data transmissions in a time domain unit .
- the starting position of the time domain resource may be the time domain starting symbol, and the duration of the time domain resource may be the symbol length.
- the terminal device can calculate the start position of the time domain resource and the duration of the time domain resource according to the start and length indicator value (SLIV).
- the method 400 further includes: the terminal device receives DCI from the network device, where the DCI is used to indicate the start and length value of the time domain resource, for example, the start and length indicator value SLIV field; The device determines the start position of the time domain resource and the duration of the time domain resource according to the start and length values.
- the DCI will indicate the time domain resource allocation for repeated transmission.
- the SLIV domain the terminal device can calculate the starting symbol positions S and L according to the SLIV domain.
- the network device can also directly send the start symbol positions S and L to the terminal device.
- the first preset relationship may be a predefined table.
- the terminal device can obtain the first number of transmissions by looking up the table.
- the first preset relationship may be a predefined formula.
- the terminal device uses this formula to calculate the first transmission times.
- the first number of transmissions can be expressed as K1.
- S420 The terminal device determines the time domain location of at least one data transmission unit in the first time domain unit according to the first number of transmissions.
- the first number of transmissions refers to the number of repeated transmissions of data in a time domain unit.
- the number of repeated data transmissions in the time domain unit is the same as the number of data transmission units.
- the terminal device can obtain the number of data transmission units in the first time domain unit based on the first number of transmissions.
- At least one data transmission unit may be understood as one or more data transmission units.
- a data transmission unit is: the time domain resource occupied by a physical downlink channel is transmitted.
- a data transmission unit may be a time domain resource occupied by transmitting the same physical downlink PDSCH.
- the same PDSCH can be repeatedly transmitted multiple times, each time occupying one data transmission unit.
- the same PDSCH may be from the same TRP or from different TRPs, and the same PDSCH from different TRPs is distinguished by different TCIstates.
- One data transmission unit is used to transmit one PDSCH. For example, symbol 1 and symbol 2 in FIG. 3 form a data transmission unit, and symbol 6 and symbol 7 form a data transmission unit.
- the PDSCH transmitted by multiple stations may use the same frequency domain resources. It should be noted that in the PDSCH transmitted by at least one data transmission unit, each data transmission unit transmits one PDSCH. These PDSCHs can come from different TRPs, and different TRPs have different TCI states, so they are on different data transmission units. The transmitted PDSCH can be considered different. Taking the schematic diagram in FIG. 3 as an example, the PDSCH transmitted on symbols 1 and 2 comes from TRP1, the PDSCH transmitted on symbols 6 and 7 comes from TRP2, and TRP1 and TRP2 are different TRPs.
- the first time domain unit is a slot
- a data transmission unit in the slot is a time domain resource occupied by transmitting a physical downlink shared channel.
- the terminal device performs data transmission on at least one data transmission unit in the first time domain unit.
- the terminal device may perform uplink transmission in at least one data transmission unit, or perform downlink transmission, which is not limited.
- the terminal device may receive PDSCH from different network devices (for example, different TRPs) on at least one data transmission unit.
- the terminal device obtains the first number of transmissions according to the first preset relationship, the starting position of the time domain resource, and the duration of the time domain resource; then, the terminal device determines at least one number of transmissions according to the first number of transmissions The time domain position of the data transmission unit; finally, the terminal device performs data transmission on at least one data transmission unit in the first time domain unit.
- the terminal device can determine the first transmission times, which helps to save the DCI overhead.
- the terminal device determines the first number of transmissions based on the first preset relationship, the starting position of the time domain resource, and the duration of the time domain resource.
- the first preset relationship refers to: the corresponding relationship between the starting position of the time domain resource, the duration of the time domain resource, and the first number of transmissions.
- S410 includes: the terminal device searches for the corresponding first number of transmissions in the first preset relationship based on the start position of the time domain resource and the duration of the time domain resource.
- the first preset relationship can be understood as a table composed of S, L, and K1.
- the terminal device can obtain the value of K1 by looking up the table.
- the following shows 8 tables consisting of S, L and K1 under different offsets.
- Tables 1 to 8 are designed based on different default offsets, that is, the offsets are implicitly indicated, so that there is no need to increase the DCI overhead.
- the terminal device can look up the corresponding K1 value in the following table based on S and L.
- Table 1 to Table 8 are designed with a slot including 14 symbols as an example.
- the value of K1 in each table is designed based on the principle that a certain data transmission unit does not cross the slot, so as to avoid causing transmission boundary problems.
- the value of the transmission length L is ⁇ 2, 4, 7 ⁇ . This is because, for repeated transmission in the slot, except for the first data transmission unit, the start symbol position S of the repeated transmission of other segments may not be in the first three symbols of the slot, so only the PDSCH in the standard protocol can be used.
- the mapping type is the transmission length under type B, so the value of the available transmission length L is ⁇ 2, 4, 7 ⁇ .
- the unit of L may be a time domain unit selected based on actual situations, for example, the unit of L may be a symbol.
- x can also be a default number, which means that repeated transmissions in the slot cannot be performed, or it can be replaced with the symbol "-", or it can be replaced by other symbols that do not represent a number, which is not specifically limited.
- the first transmission number is an even number.
- the above Table 1 to Table 8 may also be designed as the following Table 9 to Table 16.
- the following table 12 is designed with an offset of 3, as shown in the following table 12:
- the following table 13 is designed with an offset of 4, as shown in the following table 13:
- the following table 14 is designed with an offset of 5, as shown in the following table 14:
- the following table 15 is designed with an offset of 6, as shown in the following table 15:
- the following table 16 is designed with an offset of 7, as shown in the following table 16:
- one or more tables in Table 1 to Table 16 may be predefined in the standard.
- the terminal device or network device can be based on the default offset of the system, or based on the offset indicated by the higher layer signaling (such as RRC signaling) sent by the network device, or based on the offset indicated by the DCI sent by the network device , Select the corresponding table in the above table, and then look up the table based on the starting symbol positions S and L to obtain the corresponding number of repeated transmissions, that is, the first number of transmissions.
- the higher layer signaling such as RRC signaling
- the network device sends instruction information to the terminal device, the instruction information instructing the terminal device to determine the first number of transmissions according to the first preset relationship.
- the terminal device receives the instruction information.
- the network device may send the indication information to the terminal device through RRC signaling or DCI, so as to instruct the terminal device to use which table to determine the first number of transmissions.
- the terminal device can search for the first transmission times according to the table indicated by the network device.
- the first preset relationship refers to a predefined formula
- the formula can be used to calculate the first number of transmissions.
- S410 includes: the terminal device uses the following formula to calculate the first transmission times:
- K1 is the first number of transmissions
- S is the starting position of the time domain resource
- L is the duration of the time domain resource
- O1 is the offset.
- O1 represents the symbol interval between each data transmission unit in a time domain unit.
- O1 refers to the interval between the tail (such as the last symbol) of the previous data transmission unit and the head (such as the first symbol) of the next data transmission unit. O1 can use the default offset, and O1 can be an integer greater than or equal to 0. After obtaining S and L, the terminal device substitutes S, L and O1 into the above formula to calculate the value of K1.
- the first transmission number is an even number.
- the terminal device can obtain the corresponding first transmission times through the foregoing first preset relationship.
- the terminal device obtains the first transmission count through the first preset relationship.
- the network device may also obtain the first transmission count through the first preset relationship. In order to avoid repetition, it will not be expanded here. description.
- the terminal device may use the first number of transmissions to determine the time domain position of at least one data transmission unit in the first time domain unit.
- the terminal device can also obtain the number of repeated data transmissions indicated by the network device, for example, the second number of transmissions, and then decide which number of transmissions to use based on the relationship between the first number of transmissions and the second number of transmissions. This will be specifically described below.
- the method 400 further includes: the network device sends radio resource control RRC signaling to the terminal device, where the RRC signaling includes a second number of transmissions, and the second number of transmissions is an indication to the terminal device.
- the terminal device receives radio resource control RRC signaling from the network device.
- S420 includes: the terminal device selects the smallest number of transmissions among the second number of transmissions and the first number of transmissions; the terminal device determines the time domain position of at least one data transmission unit in the first time domain unit according to the smallest number of transmissions .
- the terminal device will obtain the first transmission times based on the first preset relationship, compare it with the second transmission times configured by the network device, and then select the smallest transmission times, based on the smallest transmission times in the first time domain unit Determine the time domain location of at least one data transmission unit. For example, if the first transmission number is less than the second transmission number, the first transmission number is selected; or, if the first transmission number is greater than the second transmission number, the second transmission number is selected. In this way, if the second number of transmissions configured by the network device is too large, the first number of transmissions can play a restrictive role, which can avoid the situation that time domain resources are insufficient for transmission.
- the second transmission times can play a restrictive role, so that the The domain unit dispatches other services to help improve the spectrum efficiency.
- the second number of transmissions is indicated by the network device through RRC signaling, and there is no need to increase the DCI overhead.
- the first transmission number is K1 and the second transmission number is K2 for description.
- dynamic scheduling due to real-time scheduling, other services may already exist on some symbols in the time domain unit, and the terminal device may occupy the relatively later symbols in the slot when determining the data transmission unit.
- the data sent by the network device 1 is in the first data transmission unit (occupies symbols 1 and 2) and the third data transmission unit (occupies symbols 7 and 8),
- the data sent by the network device 2 is located in the second data transmission unit (occupied symbol 4 and symbol 5) and the fourth data transmission unit (occupied symbol 10 and symbol 11).
- the terminal device selects two data transmission units among the four data transmission units based on the actual number of repeated transmissions being 2.
- the terminal device selects the first data transmission unit and the second data transmission unit on the principle of including the most TCI states from different network devices based on the increasing sequence of time sequence.
- the data sent by the network device 1 is in the first data transmission unit (occupies symbols 1 and 2) and the second data transmission unit (occupies symbols 4 and 5),
- the data sent by the network device 2 is located in the third data transmission unit (occupied symbol 7 and symbol 8) and the fourth data transmission unit (occupied symbol 10 and symbol 11).
- the terminal device selects two data transmission units among the four data transmission units based on the actual number of repeated transmissions being 2.
- the terminal device selects the first data transmission unit and the third data transmission unit on the principle of including the most TCI states from different network devices based on the increasing sequence of time sequence.
- the terminal device selects the data transmission unit based on the principle of including the most TCI states from different network devices, which helps to achieve diversity gain.
- FIG. 5 to FIG. 6 are only to facilitate those skilled in the art to understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the examples in FIGS. 5 to 6, and such modifications or changes also fall within the scope of the embodiments of the present application.
- K1 and K2 For network equipment, if the two transmission times are K1 and K2 respectively, it is assumed that there are no other services except the services transmitted by the network equipment. For example, the network equipment only needs to transmit PDSCH and does not need to transmit other services or reference signals.
- the K2 configured by the device through RRC should be the same as K1. Assuming that K2 is different from K1, and K1 is greater than K2, it may be that the terminal device determines according to its own capabilities that it can complete channel estimation without K1 reception; or, if K1 is less than K2, it may be because the time domain starting position of repeated transmission is relatively reliable.
- K2 is semi-statically configured, and K2 may be too large. If K2 is in the slot If the data transmission unit is determined in the data transmission unit, the time domain resource location of the data transmission unit may exceed the slot range. For different situations between K1 and K2, whether K1 is greater than K2 or K1 is less than K2, the network equipment should transmit according to K1, and then the terminal equipment compares K1 with K2 and selects the smallest number of transmissions.
- FIG. 7 shows a schematic flowchart of a method 700 for determining resource allocation according to another embodiment of the present application. As shown in FIG. 7, the method 700 includes:
- the terminal device acquires a first time domain offset; the first time domain offset is the start position of the first time domain resource corresponding to the first data transmission unit in the second time domain unit relative to the second time domain resource
- the start positions of the time domain resources corresponding to the units are the same.
- the same means that the index corresponding to the start position is the same.
- the symbol with index 5 in slot1 and the symbol with index 5 in slot2 are called the same index; or,
- the length between the starting position and the first symbol of the time domain unit where it is located is the same, or the relative position between the starting position and the first symbol of the time domain unit where it is located is the same, for example, in slot1
- Those skilled in the art can understand that only the time domain unit is used as the slot and the start position of the time domain resource is the symbol start position as an example for description, and time domain units with other granularities are similar.
- the first time domain unit is the first time domain unit in the time domain unit of repeated data transmission
- the second time domain unit is the time domain unit of the repeated data transmission except for the first time domain unit. Any time domain unit outside the domain unit.
- the "time-domain unit for repeated data transmission" may be multiple time-domain units, for example, multiple slots. Taking a slot as an example for description, in the embodiment of the present application, the first time domain unit is the first slot among multiple slots, and the second time domain unit is any one of the multiple slots excluding the first slot.
- the first time domain offset can be applied to any slot except the first slot among the multiple slots. That is to say, when determining the starting position of the first time domain resource corresponding to the first data transmission unit in the subsequent slot, the terminal device can use the corresponding first time domain offset to determine the corresponding first data transmission unit.
- the starting position of the first time domain resource that is, except for the first slot, the positions used to transmit PDSCH in other slots are the same.
- the network device may configure a time domain offset for each slot, and the value of the time domain offset may be different, which can more realize flexible scheduling of time domain resources.
- the first time domain offset can be understood as the offset between the data transmission units in two time domain units defined in a differential manner.
- index Index1 is the symbol position actually corresponding to the first data transmission unit in the second time domain unit
- Index2 is the symbol position actually corresponding to the first data transmission unit in the first time domain unit when the terminal device continues 2.
- the method 700 further includes: the terminal device obtains a first number of transmissions, where the first number of transmissions refers to the number of repeated data transmissions in a time domain unit.
- the first number of transmissions refers to the number of repeated transmissions of data in the slot.
- the number of repeated data transmissions in the time domain unit is the same as the number of data transmission units included in the time domain unit.
- the first number of transmissions can be considered as the number of data transmission units in a time domain unit.
- the embodiment of the present application does not limit the acquisition method of the first transmission count.
- the terminal device may use the first preset relationship described in the preceding embodiment to obtain the first transmission times, or may also be configured by the receiving network device.
- the terminal device acquiring the first number of transmissions includes: the terminal device receives first signaling from the network device, the first signaling includes the first transmission number, and the first signaling is the following Any item: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE.
- the network device can dynamically configure the first transmission times through DCI. For example, the network device uses 1 bit to indicate the first transmission count, a bit value of 0 indicates that the first transmission count is 2, and a bit value of 1 indicates that the first transmission count is 4. For another example, the network device uses 2 bits to indicate the first number of transmissions, a bit value of 0 indicates that the first transmission number is 1, a bit value of 1 indicates that the first transmission number is 2, and a bit value of 2 indicates the first transmission number If the value is 4 and the bit value is 3, it means that the first transmission number is 6.
- the network device may also directly configure the first transmission times through RRC signaling or MAC CE.
- the value range of the first transmission times may be ⁇ 2, 4, 6 ⁇ .
- S710 includes: the terminal device receives second signaling from the network device, the second signaling includes the first time domain offset, and the second signaling is any one of the following: downlink Control information DCI, radio resource control RRC, medium access control control element (MAC CE).
- DCI downlink Control information
- RRC radio resource control RRC
- MAC CE medium access control control element
- the network device can dynamically configure the first time domain offset through DCI. For example, the network device indicates the first time domain offset through 2 bits, specifically, bit 00 indicates that the first time domain offset is 0, bit 01 indicates that the first time domain offset is 1, and bit 10 indicates the first time domain offset. The shift is 2, and bit 11 indicates that the first time domain offset is -1. For another example, the network device indicates the first time domain offset through 3 bits, specifically, bit 000 indicates that the first time domain offset is 0, bit 001 indicates that the first time domain offset is 1, and bit 010 indicates the first time domain.
- the offset is 2, bit 011 indicates that the first time domain offset is 3, bit 100 indicates that the first time domain offset is 4, bit 101 indicates that the first time domain offset is -1, and bit 110 indicates the first time domain offset
- the shift is -2, and bit 111 indicates that the first time domain offset is -3.
- the positive or negative of the first time domain offset value is used to distinguish left or right offset.
- the first time domain offset value is positive, indicating a right offset, and the first time domain offset value If it is positive, it means shifting to the left, which is not specifically limited.
- the network device may configure the first time domain offset through RRC signaling or MAC CE.
- the network device configures a predefined rule and/or combination through RRC signaling, and indicates it through DCI. For example, the network device configures the combination ⁇ 0, -2, +2, +4 ⁇ through RRC signaling, and then uses a small number of bits to indicate the value of the first time domain offset in the combination, and the specific value is not specifically limited .
- the first time domain offset may be a predefined value, for example, any value of ⁇ 0, 1, 2, 3, 4 ⁇ can be directly obtained by the terminal device, which is not limited.
- S720 The terminal device determines the time domain position of the first data transmission unit in the second time domain unit according to the first time domain offset.
- the terminal device may re-determine the time domain position of the first data transmission unit in the second time domain unit.
- the index number corresponding to the time domain position of the first data transmission unit in the second time domain unit may not use the index number corresponding to the time domain position of the first data transmission unit in the first time domain unit.
- the method 700 further includes: the terminal device determines the time domain of the at least one data transmission unit in the second time domain unit according to the first time domain offset, the first number of transmissions, and the second time domain offset. Position; the second time domain offset represents the symbol interval between each data transmission unit in the second time domain unit.
- the terminal device may further determine the time domain position of at least one data transmission unit in the second time domain unit, that is, the second time domain unit.
- Each data transmission unit repeatedly transmits data in a domain unit.
- the method 700 further includes: the terminal device receives third signaling from the network device, the third signaling includes the second time domain offset, and the third signaling is any of the following One item: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE.
- the network device can dynamically configure the second time domain offset through DCI. For example, the network device indicates the second time domain offset through 1 bit, specifically, bit 0 indicates that the second time domain offset is 0, and bit 1 indicates that the second time domain offset is 1. For another example, the network device indicates the second time domain offset through 2 bits, specifically, bit 00 indicates that the second time domain offset is 0, bit 01 indicates that the second time domain offset is 1, and bit 10 indicates the second time domain. The offset is 2, and bit 11 indicates that the second time domain offset is 3, which is not specifically limited.
- the network device may configure the second time domain offset through RRC signaling or MAC CE.
- the value range of the second time domain offset is more flexible.
- the value range of the second time domain offset is [0, 12], with a total of 13 values, which is not specifically limited.
- the second time domain offset may be a predefined value, for example, any value of ⁇ 0, 1, 2, 3, 4 ⁇ can be directly obtained by the terminal device, which is not limited.
- the method 700 further includes: the terminal device acquires a third number of transmissions, where the third number of transmissions is the same as the number of time-domain units for repeatedly transmitting data; and the terminal device according to the third number of transmissions, Data transmission is performed on the same number of time domain units as the third transmission times.
- the third number of transmissions can be understood as used to determine the number of time domain units. For example, if the third transmission count is 2, the terminal device needs to perform data transmission on two slots.
- each slot includes two data transmission units. Among them, the first data transmission unit in slot1 occupies symbol 1 and symbol 2, and the second data transmission unit occupies symbol 6 and symbol 7.
- the first time domain offset is the actual start symbol position (ie symbol 2) and the dashed frame of the first data transmission unit in slot2
- the offset between the start symbol positions (ie, symbol 1) corresponding to the first data transmission unit (corresponding to symbol 1 and symbol 2) is shown.
- the first data transmission unit shown in the dashed box refers to the data transmission unit determined when the terminal device adopts the start symbol position consistent with slot1 (that is, the start symbol is 1).
- the terminal equipment can be obtained based on the values of O1, O2, K1, K2 and [S, L] Resource allocation as shown in 9.
- the data transmission service in slot 1 has a high probability of being successfully interpreted, the priority of subsequent repeated data transmission can be reduced.
- the data transmission unit used to transmit the service in slot 2 can be shifted forward or backward to be other higher priority services or urgent services or signals (such as channel state information reference signals).
- reference signal, CSI-RS reference signal
- burst services or higher-priority services or signals need to be in slot 2.
- the data transmission unit in slot1 occupies symbols 1, 2, 6, 7. If there is no emergency service, the data transmission unit in slot2 can also use the symbol index in slot1. , Namely the symbols 1, 2, 6, 7; but if there is an emergency service in slot 2 that needs to be transmitted on the symbols 1, 2, 6, 7, then the conflict can be effectively avoided by setting O2.
- the embodiment of the present application also provides another form of the first time domain offset.
- the first time domain offset may be the offset between the start symbol position of the second time domain unit and the start symbol position corresponding to the first data transmission unit in the second time domain unit.
- the first time domain offset O2 2 that is, the start symbol position of shot2 (symbol 0) and the first symbol of the first data transmission unit of slot2
- the embodiment of the present application also provides another form of the first time domain offset.
- the first time domain offset may be the offset between the last symbol position of the last data transmission unit in the first time domain unit and the start symbol position corresponding to the first data transmission unit in the second time domain unit .
- the terminal device can determine the time domain position of the first data transmission unit in the second time domain unit by using the first time domain offset in the above-mentioned various forms.
- the terminal device determines the time domain position of the first data transmission unit in the second time domain unit through the first time domain offset.
- the network device can also use the first time domain offset.
- the time domain position of the first data transmission unit is determined in the second time domain unit.
- FIG. 8 to FIG. 10 are only to facilitate those skilled in the art to understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the examples in FIGS. 8 to 10, and such modifications or changes also fall within the scope of the embodiments of the present application.
- This application also provides a method for determining resource allocation, including:
- the terminal device determines the first number of transmissions based on the duration of the time domain resource.
- the first number of transmissions refers to the number of repeated transmissions of data in a time domain unit;
- the time domain location of at least one data transmission unit is determined in the time domain unit; the terminal device performs data transmission on at least one data transmission unit in the first time domain unit.
- the terminal device may determine the value of the first transmission count according to the duration of the time domain resource. Then, the terminal device uses the first number of transmissions to determine at least one data transmission unit in the first time domain unit, and performs data transmission.
- the terminal device determines the value of the first number of transmissions based on the first preset relationship and the duration of the time domain resource.
- the normal cyclic prefix PDSCH mapping type in the current standard protocol is the duration ⁇ 2,4,7 ⁇ under type B
- the extended cyclic prefix PDSCH mapping type is the duration ⁇ 2,4, under type B 6 ⁇
- the terminal device can determine the value of the first number of transmissions based on the value of L in combination with the first preset relationship.
- the first preset relationship between the first transmission number and the duration of the time domain resource in this embodiment makes the use of resources more reasonable.
- the terminal device can obtain the corresponding first number of transmissions based on the value of L according to the foregoing first preset relationship.
- each TRP transmits PDSCH twice.
- the terminal device obtains the first number of transmissions through the first preset relationship and the duration of the time domain resource.
- the network device may also obtain the first transmission times through the above-mentioned first preset relationship. In order to avoid repetition, the detailed description is omitted here.
- the terminal device may also determine the first number of transmissions according to the starting position of the time domain resource and the duration of the time domain resource.
- the starting position of the time domain resource is S
- the duration of the time domain resource is L
- the first transmission number is K1
- a slot is composed of 14 symbols as an example.
- the first preset relationship can be defined As shown in Table 17 below.
- the terminal device can obtain K1 under different L.
- S belongs to [0,6]
- the PDSCH can not occupy the entire slot, and the symbols at the end of the slot can be used for fast feedback, avoiding uplink symbols, or used by other terminal equipment.
- This application also provides a method for determining resource allocation, which can determine the first transmission times according to the number of certain parameters (for example, the number of transmission configuration indication (TCI) states or the number of DMRS ports).
- TCI transmission configuration indication
- DMRS ports the number of DMRS ports
- the terminal device determines the first number of transmissions based on the number of TCI states indicated by the transmission configuration, where the first number of transmissions refers to the number of repeated data transmissions in time domain units;
- the terminal device performs data transmission on at least one data transmission unit in the first time domain unit.
- the first preset relationship refers to a corresponding relationship between the number of certain parameters and the first transmission times.
- the terminal device may determine the first number of transmissions directly according to the value of some parameters according to the first preset relationship.
- the certain parameters may refer to TCI status, DMRS port or other parameters, which are not specifically limited.
- the terminal device may determine the first number of transmissions according to the number of TCI states.
- the first transmission count is N, that is Each TCI state is associated with a number of repetitions. For example, if there are 2 TCI states during the transmission, the first transmission number is 2.
- M is introduced to reflect repeated transmission. M can be determined by combining multiple factors, such as transmission delay requirements, available transmission resources, and so on.
- the terminal device receives N TCI states in one transmission process, and the first transmission number may be M*N, where M is a positive integer, and M may have different values according to the duration of the time domain resource.
- M is a positive integer
- M may have different values according to the duration of the time domain resource.
- the terminal device can determine the first transmission times according to the data of the DMRS port. Exemplarily, when the terminal device determines that the current transmission mode is repeated transmission in the first time domain unit, if the number of DMRS ports used by the terminal device is 1, that is, the network devices all perform single-layer transmission, the first Once the number of transmissions is 4, the number of transmissions is increased to enhance reliability; if the number of DMRS ports used by the terminal device is more than one, that is, the network devices are all performing multi-layer transmission, the first number of transmissions is 2.
- This application also provides a method for determining resource allocation.
- the terminal device obtains the RRC signaling sent by the network device to learn which time domain units are used to determine the first transmission number. For example, the network device instructs the terminal device to use several symbols as a boundary to determine the first transmission times through RRC signaling.
- the method provided in this embodiment includes:
- the terminal device receives radio resource control RRC signaling from the network device, where the RRC signaling is used to notify the terminal device of the first time domain unit;
- the terminal device Determining, by the terminal device, the first number of transmissions according to the first preset relationship and the duration of the time domain resource, where the first number of transmissions refers to the number of repeated data transmissions in the first time domain unit;
- the terminal device performs data transmission on at least one data transmission unit in the first time domain unit.
- the terminal device can learn the first time domain unit according to the RRC signaling sent by the network device. Then, the terminal device determines the first number of transmissions according to the first preset relationship and the duration of the time domain resource.
- the first number of transmissions refers to the number of repeated data transmissions in the first time domain unit.
- the terminal device determines at least one data transmission unit in the first time domain unit according to the first number of transmissions, and performs data transmission.
- the RRC signaling includes one or more of the following information: the number of symbols occupied by the first time domain unit, the start symbol position of the first time domain unit, and the first time domain unit The end symbol position of the unit.
- the network device may notify the terminal device in which time domain unit to determine the first number of transmissions through RRC signaling.
- the network device may notify the terminal device of the boundary of the first time domain unit through RRC signaling, or notify the terminal device of the number of symbols occupied by the first time domain unit, or the start of the first time domain unit Symbol, or which symbols are occupied by the first time domain unit, or the index of the symbols occupied by the first time domain unit.
- the first time domain unit can occupy one slot or some symbols in one slot.
- the symbols occupied by the first time domain unit may be continuous or discrete, which is not limited.
- the network device may inform the terminal device through RRC signaling that only the first half of a slot, or some symbols in a slot, can be used for multi-station time domain repeated transmission.
- the first half of the slot can be used for repeated data transmission
- the second half can be used for feedback.
- the RRC signaling may also indicate the first time domain unit through an enabling function.
- RRC signaling includes two types of functions, type1 and type2, type1 indicates the entire slot, and type2 indicates part of the symbols (for example, the first half of the symbols) of the slot.
- the terminal device learns that the first time domain unit is 14 symbols through RRC signaling; if the network device enables type2 through RRC signaling, the terminal device uses RRC signaling Let it be known that the first time domain unit is the first 7 symbols in the slot. For example, assuming that a slot occupies 14 symbols, the first time domain unit can be defined as the first 7 symbols in the slot.
- the terminal device can perform PDSCH repeated transmission on the first 7 symbols in the slot, that is, the terminal device uses 7 symbols to calculate the first transmission times.
- the specific calculation method of the first transmission times please refer to the previous description. For brevity, it will not be repeated here. . It should be understood that the description here takes 7 symbols occupied by the first time domain unit as an example, and does not limit the protection scope of the embodiment of the present application. In fact, the first time domain unit may also be other shorter symbols.
- the network device can reserve the symbols in the slot The latter part of the symbols is quickly fed back or reserved for other terminal equipment for transmission, which is not limited.
- the RRC signaling sent by the network device to the terminal device includes the first symbol number.
- the terminal device can learn the boundary of the time domain unit used to calculate or determine the first number of transmissions, that is, the boundary of the first time domain unit based on the first number of symbols.
- the terminal device uses the first symbol number as the boundary, uses the method in the foregoing embodiment to determine the first transmission times, determines the time domain position of at least one data transmission unit in the first time domain unit, and performs data transmission.
- the first transmission number is K1 for description.
- the value of K1 is x.
- x can also be a default number, which means that repeated transmissions in the slot cannot be performed, or it can be replaced with the symbol "-", or it can be replaced by other symbols that do not represent a number, which is not specifically limited.
- the network device configures the first time domain unit for the terminal device through RRC signaling, which can reduce the time domain resources occupied by the PDSCH transmission of a certain terminal device, and realize fast feedback in the time domain unit and multi-user Scheduling helps improve system reliability.
- This application also provides a method for determining resource allocation.
- the network device can notify the terminal device of the first transmission times through RRC signaling. Specifically:
- the network device sends RRC signaling to the terminal device, where the RRC signaling is used to indicate the first number of transmissions.
- the terminal device receives the RRC signaling from the network device.
- the terminal device determines the time domain position of at least one data transmission unit in the first time domain unit according to the first transmission times; the terminal device performs data on at least one data transmission unit in the first time domain unit transmission.
- the terminal device can obtain the first number of transmissions by receiving the RRC signaling sent by the network device.
- the network device makes a joint indication of the time domain resource allocation configuration of the existing PDSCH and the first number of transmissions, and informs the terminal device of the joint indication through the RRC signaling, so that the terminal The device obtains the first number of transmissions based on the RRC signaling. Therefore, the network equipment enhances the RRC signaling to realize the joint indication of the PDSCH TD-RA and the first transmission number without increasing the DCI overhead. In addition, since the network equipment will pre-configure the time domain resources and the uplink and downlink symbols, it can well solve the conflict of the uplink and downlink symbols during the repeated transmission in the time domain.
- Method 1 Use the default time domain resource allocation table; Method 2.
- the structure of the RRC IE pdsch-TimeDomainAllocationList is as follows:
- the parameters included in the RRC IE pdsch-TimeDomainAllocationList structure can refer to the description in the existing protocol, and for brevity, details are not described here.
- the RRC parameter startSymbolAndLength is SLIV, which indicates S and L of a PDSCH by default. Therefore, by enhancing the above-mentioned RRC signaling, the network equipment can make time domain resource allocation (time domain resource allocation, TDRA) and the first transmission times be jointly indicated.
- the network device uses RRC signaling to jointly indicate the TDRA and the first transmission times specifically including the following multiple implementation methods:
- the network device adds an RRC parameter for configuring the number of repetitions in the RRC signaling, for example, repetitionTimes, to indicate the first transmission number.
- RRC signaling also includes startSymbolAndLength.
- startSymbolAndLength is used to indicate the first repeated transmission of the PDSCH.
- the network device jointly configures the two parameters startSymbolAndLength and repetitionTimes so that the repeated transmission resources allocated to the terminal device do not exceed the slot boundary.
- RRC IE pdsch-TimeDomainAllocationList is as follows:
- the network device adds an RRC parameter for configuring the offset between repeated transmissions in the RRC signaling, for example, offsetBetweenRepetition, to configure the offset between multiple repetitions.
- the network device can use the RRC parameter to indicate whether to perform repeated transmission.
- the offsetBetweenRepetition is not included in the RRC signaling, it indicates that the time domain repetitive transmission is not performed, and single-station transmission or other modes of repetitive transmission can be performed; if the offsetBetweenRepetition is configured in the RRC signaling, for example, 0 symbol or 1 symbol Etc., it indicates that the first transmission number can be fixed, for example, the first transmission number is 2, or the parameter in method 1 (for example, repetitionTimes) can be further added to the RRC signaling to indicate the first transmission number.
- the network device can also be further configured with startSymbolAndLength, combined with offsetBetweenRepetition, so that the repeated transmission resources allocated to the terminal device do not exceed the slot boundary.
- RRC IE pdsch-TimeDomainAllocationList is as follows:
- the network equipment adds the RRC parameters that configure the start symbol position and duration of repeated transmissions in the RRC signaling, for example, startSymbolAnd LengthAndRepetition, which is used to represent the joint coding result of S, L, and Repetition.
- startSymbolAnd LengthAndRepetition which is used to represent the joint coding result of S, L, and Repetition.
- the offset (offset) corresponding to the RRC parameter is fixed, for example, the offset is 0 or 1 symbol.
- S, L, and K1 there are multiple joint coding methods for S, L, and Repetition, which are not limited. Taking Repetition as K1 and the value of L satisfying 0 ⁇ L ⁇ 14-S as an example, S, L, and K1 can satisfy the following formula:
- SLIV_R [14*(14-L+1)+(14-1-S)]*K1, where L-1 is greater than 7.
- startSymbolAndLengthAndRepetition is the value indicated by SLIV_R.
- a value of SLIV_R represents a combination of S, L, and K1.
- the maximum value of SLIV_R may not be 127 due to the addition of coding elements.
- the maximum value of SLIV_R needs to be expanded to 255 or 511.
- the embodiment of the present application does not limit the encoding method and possible values of SLIV_R.
- RRC IE pdsch-TimeDomainAllocationList is as follows:
- the network device adds another RRC parameter that configures the position of the start symbol and the duration of the repeated transmission in the RRC signaling, for example, SecondstartSymbolAndLength, to indicate the value of the second SLIV.
- SecondstartSymbolAndLength another RRC parameter that configures the position of the start symbol and the duration of the repeated transmission in the RRC signaling
- the network device needs to ensure that the start symbol of the second SLIV is after the end symbol of the first SLIV, that is, the two SLIVs cannot overlap in symbols;
- the network device configures the value of the second SLIV, it can also avoid the position of the uplink symbol in advance according to the configuration of the position of the uplink and downlink symbols in the time domain unit, and correct the first SLIV and the second SLIV. Perform configuration to solve the conflict of uplink and downlink symbols during repeated transmission in the time domain.
- RRC IE pdsch-TimeDomainAllocationList is as follows:
- the network device configures the RRC parameters of the list of start symbol position and duration in RRC signaling, for example, ListofstartSymbolAndLength, to indicate multiple SLIV sequences.
- the network device can arbitrarily configure multiple SLIV values to indicate the time domain resource location of multiple repeated transmissions.
- the configuration restrictions for multiple SLIVs can be similar to the SLIV configuration method in Method 4.
- the beneficial effect of using multiple SLIV configurations is similar to that of mode 4. For brevity, it will not be repeated here.
- RRC IE pdsch-TimeDomainAllocationList is as follows:
- the terminal device after receiving the RRC signaling in any of the foregoing manners, the terminal device can obtain the first number of transmissions through the RRC signaling.
- this embodiment can be implemented alone or in combination with the previous embodiments, which is not limited.
- the network device configures the first transmission times for the terminal device through RRC signaling
- the specific implementation manner of the RRC signaling in this embodiment can be adopted.
- the signaling may be RRC signaling, or MAC-CE signaling, or DCI signaling.
- the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic.
- the various numerical numbers or serial numbers involved in the foregoing processes are only for easy distinction for description, and should not constitute any limitation on the implementation process of the embodiments of the present application.
- the method for determining resource allocation according to an embodiment of the present application is described in detail above with reference to FIGS. 1 to 10.
- the device for determining resource allocation according to an embodiment of the present application will be described below in conjunction with FIG. 11 to FIG. 13. It should be understood that the technical features described in the method embodiments are also applicable to the following device embodiments.
- FIG. 11 is a schematic block diagram of a communication device provided by an embodiment of the present application.
- the communication device 1000 may include a processing unit 1100 and a transceiver unit 1200.
- the communication device 1000 may correspond to the terminal device in the above method embodiment, for example, it may be a terminal device or a chip configured in the terminal device.
- the communication device 1000 may correspond to the terminal device in the method 400 according to the embodiment of the present application, and the communication device 1000 may include a unit for executing the method executed by the terminal device in the method 400 in FIG. 4.
- each unit in the communication device 1000 and other operations or functions described above are used to implement the corresponding process of the terminal device in the method 400 in FIG. 4.
- processing unit 1100 and the transceiving unit 1200 may be used to:
- the processing unit 1100 is configured to determine the first number of transmissions according to the first preset relationship, the starting position of the time domain resource, and the duration of the time domain resource, where the first number of transmissions refers to repeated transmission of data in a time domain unit
- the processing unit 1100 is further configured to determine the time domain position of at least one data transmission unit in the first time domain unit according to the first transmission frequency.
- the transceiver unit 1200 is configured to perform data transmission on at least one data transmission unit in the first time domain unit.
- the first preset relationship refers to: the corresponding relationship between the starting position of the time domain resource, the duration of the time domain resource, and the first number of transmissions;
- the processing unit 1100 is configured to determine the first number of transmissions according to the first preset relationship, the start position of the time domain resource, and the duration of the time domain resource, which specifically includes: based on the start position of the time domain resource and the time domain.
- the duration of the domain resource is searched for the corresponding first transmission count in the first preset relationship.
- the processing unit 1100 is configured to determine the first number of transmissions according to the first preset relationship, the starting position of the time domain resource, and the duration of the time domain resource, which specifically includes:
- K1 is the number of first transmissions
- S represents the starting position of the time domain resource
- L represents the duration of the time domain resource
- O1 represents a time domain unit between each data transmission unit. Symbol interval.
- the transceiving unit 1200 is further configured to receive radio resource control RRC signaling from a network device, where the RRC signaling includes a second transmission count, and the second transmission count is the The number of times of repeated data transmission in the time domain unit indicated by the network device; wherein the processing unit 1100 is configured to determine the time domain position of at least one data transmission unit in the first time domain unit according to the first number of transmissions, Specifically, it includes: selecting the smallest number of transmissions among the second number of transmissions and the first number of transmissions; and determining the time domain of at least one data transmission unit in the first time domain unit according to the smallest number of transmissions position.
- RRC signaling includes a second transmission count
- the second transmission count is the The number of times of repeated data transmission in the time domain unit indicated by the network device
- the processing unit 1100 is configured to determine the time domain position of at least one data transmission unit in the first time domain unit according to the first number of transmissions, Specifically, it includes: selecting the smallest number of transmissions among the second number
- the transceiving unit 1200 is further configured to receive downlink control information DCI from a network device, where the DCI is used to indicate the start and length value of the time domain resource; the processing unit 1100 is also It is used to determine the start position of the time domain resource and the duration of the time domain resource according to the start and length values.
- the first time domain unit is a time slot; correspondingly, one data transmission unit is: time domain resources occupied by transmitting a physical downlink shared channel.
- processing unit 1100 and the transceiving unit 1200 may be used to:
- the transceiver unit 1200 is configured to obtain a first time domain offset; the first time domain offset is the start position of the first time domain resource corresponding to the first data transmission unit in the second time domain unit relative to the second time domain The offset of the start position of the domain resource, where the start position of the second time domain resource is located in the second time domain unit and is the first one in the first time domain unit used by the terminal device
- the start positions of the time domain resources corresponding to the data transmission units are the same, where the first time domain unit is the first time domain unit in the time domain units that repeatedly transmit data, and the second time domain unit is the Any time domain unit other than the first time domain unit among the time domain units that repeatedly transmit data.
- the processing unit 1100 is configured to determine the time domain position of the first data transmission unit in the second time domain unit according to the first time domain offset.
- the transceiving unit 1200 is further configured to obtain a first number of transmissions, where the first number of transmissions refers to the number of repeated data transmissions in a time domain unit.
- the processing unit 1100 is further configured to: according to the first time domain offset, the first number of transmissions, and the second time domain offset, in the second time domain
- the time domain position of at least one data transmission unit is determined in the unit; the second time domain offset represents the symbol interval between each data transmission unit in the second time domain unit.
- the transceiving unit 1200 is configured to obtain the first number of transmissions, including: receiving first signaling from a network device, where the first signaling includes the first number of transmissions, and
- the first signaling is any one of the following: downlink control information DCI, radio resource control RRC, and medium access control layer control element MAC CE.
- the transceiving unit 1200 is configured to obtain the first time domain offset, including: receiving second signaling from a network device, the second signaling including the first time domain offset
- the second signaling is any one of the following: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE.
- the transceiving unit 1200 is further configured to obtain a third number of transmissions, where the third number of transmissions is the same as the number of time domain units for repeatedly transmitting data;
- the processing unit 1100 is further configured to perform data transmission on the same number of time domain units as the third transmission number according to the third transmission number.
- the transceiving unit 1200 is further configured to receive third signaling from a network device, where the third signaling includes the second time domain offset, and the third signaling It is any one of the following: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE.
- the transceiver unit 1200 in the communication device 1000 may correspond to the transceiver 2020 in the terminal device 2000 shown in FIG. 12, and the processing unit 1100 in the communication device 1000 may It corresponds to the processor 2010 in the terminal device 2000 shown in FIG. 12.
- the transceiver unit 1200 in the communication device 1000 may be an input/output interface.
- the communication device 1000 may correspond to the network device in the above method embodiment, for example, it may be a network device or a chip configured in the network device.
- the communication device 1000 may correspond to the network device in the method 400 according to the embodiment of the present application, and the communication device 1000 may include a unit for executing the method executed by the network device in the method 400 in FIG. 4.
- the communication unit in the communication device 1000 may correspond to the transceiver 3200 in the network device 3000 shown in FIG. 13, and the processing unit 1100 in the communication device 1000 may It corresponds to the processor 3100 in the network device 3000 shown in FIG. 13.
- the transceiver unit 1200 in the communication device 1000 may be an input/output interface.
- processing unit 1100 and the transceiving unit 1200 may be used to:
- the transceiving unit 1200 is configured to send instruction information to a terminal device, the instruction information instructing the terminal device to determine the first number of transmissions according to a first preset relationship, where the first preset relationship refers to: the start of the time domain resource The corresponding relationship between the location, the duration of the time domain resource, and the first transmission number.
- the processing unit 1100 is configured to determine the first number of transmissions, and according to the first number of transmissions, determine the time domain position of at least one data transmission unit in the first time domain unit.
- the transceiver unit 1200 is further configured to perform data transmission on at least one data transmission unit in the first time domain unit.
- the transceiver unit 1200 is further configured to send radio resource control RRC signaling to a terminal device, where the RRC signaling includes a second number of transmissions, and the second number of transmissions is an indication to the terminal device.
- RRC signaling includes a second number of transmissions
- the second number of transmissions is an indication to the terminal device.
- the transceiving unit 1200 is further configured to send downlink control information DCI to the terminal device, where the DCI is used to indicate the start and length indication value of the time domain resource, for example, the SLIV domain.
- processing unit 1100 and the transceiving unit 1200 may be used to:
- the transceiver unit 1200 is configured to obtain a first time domain offset; the first time domain offset is the start position of the first time domain resource corresponding to the first data transmission unit in the second time domain unit relative to the second time domain The offset of the start position of the domain resource, where the start position of the second time domain resource is located in the second time domain unit and is the first one in the first time domain unit used by the terminal device
- the start positions of the time domain resources corresponding to the data transmission units are the same, where the first time domain unit is the first time domain unit in the time domain units that repeatedly transmit data, and the second time domain unit is the Any time domain unit other than the first time domain unit among the time domain units that repeatedly transmit data.
- the processing unit 1100 is configured to determine the time domain position of the first data transmission unit in the second time domain unit according to the first time domain offset.
- the transceiving unit 1200 is further configured to send first signaling to a terminal device, where the first signaling includes a first number of transmissions, and the first number of transmissions refers to one time.
- the first signaling is any one of the following: downlink control information DCI, radio resource control RRC, and medium access control layer control element MAC CE.
- the transceiving unit 1200 is further configured to send second signaling to a terminal device, the second signaling includes the first time domain offset, and the second signaling is Any one of the following: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE.
- the transceiving unit 1200 is further configured to send third signaling to the terminal device, the third signaling includes a second time domain offset, and the third signaling is the following Any item of: downlink control information DCI, radio resource control RRC, medium access control layer control element MAC CE.
- FIG. 12 is a schematic structural diagram of a terminal device 2000 provided by an embodiment of the present application.
- the terminal device 2000 can be applied to the system shown in FIG. 1 or FIG. 2 to perform the functions of the terminal device in the foregoing method embodiment.
- the terminal device 2000 includes a processor 2010 and a transceiver 2020.
- the terminal device 2000 further includes a memory 2030.
- the processor 2010, the transceiver 2002, and the memory 2030 can communicate with each other through internal connection paths to transfer control or data signals.
- the memory 2030 is used to store computer programs, and the processor 2010 is used to call and transfer from the memory 2030. Run the computer program to control the transceiver 2020 to send and receive signals.
- the terminal device 2000 may further include an antenna 2040 for transmitting the uplink data or uplink control signaling output by the transceiver 2020 through a wireless signal.
- the aforementioned processor 2010 and the memory 2030 can be combined into a processing device, and the processor 2010 is configured to execute the program code stored in the memory 2030 to implement the aforementioned functions.
- the memory 2030 may also be integrated in the processor 2010 or independent of the processor 2010.
- the processor 2010 may correspond to the processing unit in FIG. 11.
- the above transceiver 2020 may correspond to the communication unit in FIG. 11, and may also be referred to as a transceiver unit.
- the transceiver 2020 may include a receiver (or called receiver, receiving circuit) and a transmitter (or called transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
- the terminal device 2000 shown in FIG. 12 can implement various processes involving the terminal device in the method embodiment shown in FIG. 4.
- the operation or function of each module in the terminal device 2000 is to implement the corresponding process in the foregoing method embodiment.
- the above-mentioned processor 2010 can be used to execute the actions described in the previous method embodiments implemented by the terminal device, and the transceiver 2020 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
- the transceiver 2020 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
- the aforementioned terminal device 2000 may further include a power supply 2050 for providing power to various devices or circuits in the terminal device.
- the terminal device 2000 may also include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, and a sensor 2100.
- the audio circuit A speaker 2082, a microphone 2084, etc. may also be included.
- FIG. 13 is a schematic structural diagram of a network device provided by an embodiment of the present application, for example, it may be a schematic structural diagram of a base station.
- the base station 3000 may be applied to the system shown in FIG. 1 or FIG. 2 to perform the functions of the network device in the foregoing method embodiment.
- the base station 3000 may include one or more radio frequency units, such as a remote radio unit (RRU) 3100 and one or more baseband units (BBU) (also known as distributed unit (DU) )) 3200.
- RRU 3100 may be called a transceiver unit, which corresponds to the communication unit 1200 in FIG. 11.
- the transceiver unit 3100 may also be called a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 3101 and a radio frequency unit 3102.
- the transceiver unit 3100 may include a receiving unit and a transmitting unit, the receiving unit may correspond to a receiver (or receiver, receiving circuit), and the transmitting unit may correspond to a transmitter (or transmitter or transmitting circuit).
- the RRU 3100 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals and baseband signals.
- the 3200 part of the BBU is mainly used for baseband processing and control of the base station.
- the RRU 3100 and the BBU 3200 may be physically set together, or may be physically separated, that is, a distributed base station.
- the BBU 3200 is the control center of the base station, and may also be called a processing unit, which may correspond to the processing unit 1100 in FIG. 11, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
- the BBU processing unit
- the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate configuration information reported by the CSI.
- the BBU 3200 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network with a single access standard (such as an LTE network), or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
- the BBU 3200 also includes a memory 3201 and a processor 3202.
- the memory 3201 is used to store necessary instructions and data.
- the processor 3202 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
- the memory 3201 and the processor 3202 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
- the base station 3000 shown in FIG. 13 can implement various processes involving network devices in the foregoing method embodiments.
- the operation or function of each module in the base station 3000 is to implement the corresponding process in the foregoing method embodiment.
- the above-mentioned BBU 3200 can be used to perform the actions described in the previous method embodiments implemented by the network device, and the RRU 3100 can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
- the RRU 3100 can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
- the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the steps shown in FIG. 4 or FIG. 7 Show the method in the embodiment.
- the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer executes the steps shown in FIG. 4 or FIG. 7 Show the method in the embodiment.
- the present application also provides a system, which includes the aforementioned one or more terminal devices and one or more network devices.
- An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the communication method in any of the foregoing method embodiments.
- the processing device may be a chip.
- the processing device may be a field programmable gate array (FPGA), a general-purpose processor, a digital signal processor (digital signal processor, DSP), or an application specific integrated circuit (ASIC) , Ready-made programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, or system on chip (SoC), or central processing
- the central processor unit (CPU) can also be a network processor (NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (microcontroller unit, MCU) It can also be a programmable logic device (PLD) or other integrated chips.
- NP network processor
- DSP digital signal processor
- MCU microcontroller
- PLD programmable logic device
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding 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, registers.
- 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 embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM random access memory
- static random access memory static random access memory
- dynamic RAM dynamic random access memory
- DRAM dynamic random access memory
- SDRAM synchronous dynamic random access memory
- double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
- enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
- serial link DRAM SLDRAM
- direct rambus RAM direct rambus RAM
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc, SSD)) etc.
- the network equipment in the above-mentioned device embodiments completely corresponds to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
- the communication unit transmits the receiving or In the sending step, other steps except sending and receiving can be executed by the processing unit (processor).
- the processing unit processor
- component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
- the component may be, but is not limited to, a process, processor, object, executable file, thread of execution, program, or computer running on the processor.
- the application running on the computing device and the computing device can be components.
- One or more components can reside in a process or thread of execution, and the components can be located on one computer or distributed between two or more computers.
- these components can be executed from various computer readable media having various data structures stored thereon.
- a component can pass a local signal based on a signal having one or more data packets (for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through signals). Or remote process to communicate.
- a signal having one or more data packets for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through signals.
- remote process to communicate for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through signals.
- a corresponding to B means that B is associated with A, and B can be determined according to A.
- determining B according to A does not mean that B is determined only according to A, and B can also be determined according to A and/or other information.
- the item can be any of the following: A; B ; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A , C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C.
- the item can be any of the following: A; B ; C; A and B; A and C; B and C; A, B and C; A and A; A and B; A, A and C, A, B and B; A , C and C; B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C.
- the item includes at least one of the following: A, B,..., and X"
- the applicable items of the item can also be obtained according to the aforementioned rules.
- the disclosed system, device, and method may be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read only memory ROM, random access memory RAM, magnetic disk or optical disk and other media that can store program codes.
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Abstract
本申请提供了一种确定资源分配的方法和装置,该方法包括:终端设备通过第一预设关系、时域资源的起始位置以及时域资源的持续长度,可以确定出在时域单元中重复传输数据的次数,然后使用该次数在第一时域单元中确定至少一个数据传输单元的时域位置,最后在该至少一个数据传输单元上进行数据传输。这里不需要网络设备通过下行控制信息DCI配置偏移量,有助于节省DCI开销。
Description
本申请要求于2019年7月12日提交中国专利局、申请号为201910630998.6、申请名称为“确定资源分配的方法和装置”,以及,于2019年9月29日提交中国专利局、申请号为201910935882.3、申请名称为“确定资源分配的方法和装置”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。
本申请涉及通信领域,并且更具体地,涉及一种确定资源分配的方法和装置。
移动通信技术已经深刻地改变了人们的生活,但人们对更高性能的移动通信技术的追求从未停止。为了应对未来爆炸性的移动数据流量增长、海量移动通信的设备连接、不断涌现的各类新业务和应用场景,第五代(the fifth generation,5G)移动通信系统应运而生。国际电信联盟(international telecommunication union,ITU)为5G以及未来的移动通信系统定义了三大类应用场景:增强型移动宽带(enhanced mobile broadband,eMBB)、高可靠低时延通信(ultra reliable and low latency communications,URLLC)以及海量机器类通信(massive machine type communications,mMTC)。比如,URLLC技术对可靠性的需求比较高。为了提高可靠性,常用的方法是利用信道的分集增益,分集增益包括了信道在时域,频域,空域等至少一个维度中的分集。
其中,信道的空域分集增益的一个例子是多站的独立信道分集增益。网络中可能有多个基站,多个基站之间可以进行协作传输。在多站协作技术中,终端设备可能会被多个基站调度,如多个基站调度终端设备接收多份数据。在多站协作技术中,支持时域上进行多站的重复传输,利用信道在时间上的不相关性来提高传输的鲁棒性。
目前,现有技术中是通过下行控制信息(downlink control information,DCI)来指示动态指示一个时隙slot内的符号偏移量Offset1,用来表示一个slot内第一段重复的最后一个符号与第二段重复的第一个符号之间的偏移量,以便于确定一个slot内的时域资源分配情况。但是这种方式带来的问题是:增加了DCI开销。因此,亟需提出一种方案解决该问题。
发明内容
有鉴于此,本申请提供一种确定资源分配的方法和装置,有助于节省DCI开销。
第一方面,提供了一种确定资源分配的方法,包括:终端设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少 一个数据传输单元上进行数据传输。相比于现有技术,终端设备通过第一预设关系确定第一传输次数,不需要网络设备通过DCI动态配置偏移量,有助于节省DCI开销。
可选地,所述第一时域单元为时隙;相应的,一个所述数据传输单元为:传输一个物理下行共享信道所占用的时域资源。例如,一个数据传输单元可以是一次传输同一个物理下行PDSCH所占用的时域资源。同一个PDSCH可以重复传输多次,每次占用一个数据传输单元。另外,所述同一个PDSCH可以是来自同一个TRP的,也可以来自不同的TRP,同一个PDSCH来自不同的TRP是通过不同的传输配置指示(transmission configuration indication,TCI)状态(state)进行区分的。
在一种可能的实现方式中,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持续长度与所述第一传输次数的对应关系;所述终端设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,包括:所述终端设备基于所述时域资源的起始位置以及所述时域资源的持续长度,在所述第一预设关系中查找对应的所述第一传输次数。
这里,第一预设关系是由时域资源的起始位置、时域资源的持续长度与第一传输次数组成的表格。终端设备通过查找表格,可以得到第一传输次数。
在另一种可能的实现方式中,所述终端设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,包括:所述终端设备采用以下公式,计算所述第一传输次数:
K1=[(14-S-L)/(L+O1)]+1
其中,K1是所述第一传输次数,S表示所述时域资源的起始位置,L表示所述时域资源的持续长度,O1表示一个时域单元内,每个数据传输单元之间的符号间隔。
因此,终端设备将S、L和O1代入上述公式,可以计算出第一传输次数。其中,S和L可以是网络设备配置的。
可选地,所述方法还包括:所述终端设备接收来自网络设备的无线资源控制RRC信令,所述RRC信令包括第二传输次数,所述第二传输次数是所述网络设备指示的在时域单元中重复传输数据的次数;其中,所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置,包括:所述终端设备在所述第二传输次数和所述第一传输次数中选择最小的传输次数;所述终端设备根据所述最小的传输次数,在所述第一时域单元中确定至少一个数据传输单元的时域位置。
因此,终端设备通过接收网络设备指示的第二传输次数,并比较第一传输次数与第二传输次数的大小,选择最小的传输次数确定数据传输单元的时域位置,从而避免出现时域资源受限的情况。
可选地,所述方法还包括:所述终端设备接收来自网络设备的下行控制信息DCI,所述DCI用于指示时域资源的起始和长度值,比如,SLIV域;所述终端设备根据所述起始和长度值,确定所述时域资源的起始位置和所述时域资源的持续长度。
因此,终端设备通过接收来自网络设备的DCI,可以获取起始和长度值,然后基于起始和长度值查找相应的所述时域资源的起始位置和所述时域资源的持续长度,从而可以得到S和L。
或者,可选地,终端设备可以接收网络设备通过DCI下发的所述时域资源的起始位置 和所述时域资源的持续长度。
第二方面,提供了一种确定资源分配的方法,包括:网络设备向终端设备发送指示信息,所述指示信息指示终端设备根据第一预设关系确定第一传输次数,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持续长度与所述第一传输次数的对应关系;网络设备确定第一传输次数,并根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述网络设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。这样,网络设备也可以通过第一预设关系查找对应的第一传输次数。
可选地,所述指示信息携带于RRC信令中。
可选地,网络设备可以基于第一预设关系进行查表得到第一传输次数,也可以自己确定第一传输次数。
可选地,所述第一时域单元为时隙;相应的,一个所述数据传输单元为:传输一个物理下行共享信道所占用的时域资源。例如,一个数据传输单元可以是传输同一个物理下行PDSCH所占用的时域资源。同一个PDSCH可以重复传输多次,每次占用一个数据传输单元。另外,所述同一个PDSCH可以是来自同一个TRP的,也可以来自不同的TRP,同一个PDSCH来自不同的TRP是通过不同的TCIstate进行区分的。
在一种可能的实现方式中,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持续长度与所述第一传输次数的对应关系;所述网络设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,包括:所述网络设备基于所述时域资源的起始位置以及所述时域资源的持续长度,在所述第一预设关系中查找对应的所述第一传输次数。
在一种可能的实现方式中,所述网络设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,包括:所述网络设备采用以下公式,计算所述第一传输次数:
K1=[(14-S-L)/(L+O1)]+1
其中,K1是所述第一传输次数,S表示所述时域资源的起始位置,L表示所述时域资源的持续长度,O1表示一个时域单元内,每个数据传输单元之间的符号间隔。
可选地,所述方法还包括:所述网络设备向终端设备发送无线资源控制RRC信令,所述RRC信令包括第二传输次数,所述第二传输次数是向所述终端设备指示的在时域单元中重复传输数据的次数。
因此,网络设备通过向终端设备下发第二传输次数,以便于终端设备比较第一传输次数与第二传输次数的大小,选择最小的传输次数确定数据传输单元的时域位置,从而避免出现时域资源受限的情况。
可选地,所述方法还包括:所述网络设备向终端设备发送下行控制信息DCI,所述DCI用于指示时域资源的起始和长度值,比如,起始和长度指示SLIV域。
因此,网络设备向终端设备下发DCI,以便于终端设备可以获取时域资源的起始和长度值,然后基于该起始和长度值查找相应的所述时域资源的起始位置和所述时域资源的持续长度,从而可以得到S和L。
或者,可选地,网络设备通过DCI向终端设备直接下发所述时域资源的起始位置和所述时域资源的持续长度。
第三方面,提供了一种确定资源分配的方法,包括:终端设备获取第一时域偏移;所述第一时域偏移为第二时域单元中首个数据传输单元对应的第一时域资源的起始位置相对于第二时域资源的起始位置的偏移量,其中,所述第二时域资源的起始位置位于所述第二时域单元中,且与所述终端设备使用的第一时域单元中首个数据传输单元对应的时域资源的起始位置相同,其中,所述第一时域单元是重复传输数据的时域单元中的第一个时域单元,所述第二时域单元是所述重复传输数据的时域单元中除所述第一时域单元外的任一时域单元;所述终端设备根据所述第一时域偏移,在所述第二时域单元中确定首个数据传输单元的时域位置。这样,终端设备基于第一时域偏移可以确定出第二时域单元的首个数据传输单元的时域位置,而非沿用第一时域单元的首个数据传输单元对应的时域资源的起始位置,从而可以为紧急业务或更高优先级的业务让出资源位置。
在一种可能的实现方式中,所述方法还包括:所述终端设备获取第一传输次数,所述第一传输次数是指在一个时域单元中重复传输数据的次数。
因此,终端设备通过获取第一传输次数,可以得到一个时域单元中的重复传输数据的次数,比如,第一时域单元中重复传输数据的次数,或者,第二时域单元中重复传输数据的次数。
在一种可能的实现方式中,所述方法还包括:所述终端设备根据所述第一时域偏移,所述第一传输次数,以及第二时域偏移,在所述第二时域单元中确定至少一个数据传输单元的时域位置;所述第二时域偏移表示所述第二时域单元中的每个数据传输单元之间的符号间隔。
因此,终端设备结合所述第一时域偏移,所述第一传输次数,以及第二时域偏移,可以得到第二时域单元中的一个或多个数据传输单元的时域位置。
可选地,所述终端设备获取第一传输次数,包括:所述终端设备接收来自网络设备的第一信令,所述第一信令包括所述第一传输次数,所述第一信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。因此,终端设备获取第一传输次数的方式比较灵活。
可选地,所述终端设备获取第一时域偏移,包括:所述终端设备接收来自网络设备的第二信令,所述第二信令包括所述第一时域偏移,所述第二信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。因此,终端设备获取第一时域偏移的方式比较灵活。
在一种可能的实现方式中,所述方法还包括:所述终端设备获取第三传输次数,所述第三传输次数与所述重复传输数据的时域单元的个数相同;所述终端设备根据所述第三传输次数,在与第三传输次数相同个数的时域单元上进行数据传输。
其中,重复传输数据的时域单元可以包括多个时域单元,比如,多个时域单元是多个时隙,所述第三传输次数与多个时隙的个数相同。
可选地,所述方法还包括:所述终端设备接收来自网络设备的第三信令,所述第三信令包括所述第二时域偏移,所述第三信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。因此,终端设备获取第二时域偏移的方式比较灵活。
第四方面,提供了一种确定资源分配的方法,包括:网络设备获取第一时域偏移;所 述第一时域偏移为第二时域单元中首个数据传输单元对应的第一时域资源的起始位置相对于第二时域资源的起始位置的偏移量,其中,所述第二时域资源的起始位置位于所述第二时域单元中,且与所述终端设备使用的第一时域单元中首个数据传输单元对应的时域资源的起始位置相同的时域资源的起始位置,其中,所述第一时域单元是重复传输数据的多个时域单元中的第一个时域单元,所述第二时域单元是所述重复传输数据的多个时域单元中除所述第一时域单元外的任一时域单元;所述网络设备根据所述第一时域偏移,在所述第二时域单元中确定首个数据传输单元的时域位置。因此,网络设备可以通过第一时域偏移确定出第二时域单元的首个数据传输单元的时域位置。
在一种可能的实现方式中,所述方法还包括:所述网络设备向终端设备发送第一信令,所述第一信令包括第一传输次数,所述第一传输次数是指在一个时域单元中重复传输数据的次数,所述第一信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。因此,网络设备向终端设备通知第一传输次数的方式比较灵活。
在一种可能的实现方式中,所述方法还包括:所述网络设备向终端设备发送第二信令,所述第二信令包括所述第一时域偏移,所述第二信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。因此,网络设备向终端设备通知第一时域偏移的方式比较灵活。
在一种可能的实现方式中,所述方法还包括:所述网络设备向终端设备发送第三信令,所述第三信令包括第二时域偏移,所述第三信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。因此,网络设备向终端设备通知第二时域偏移的方式比较灵活。
第五方面,提供了一种确定资源分配的方法,包括:终端设备基于时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。因此,终端设备可以根据时域资源的持续长度,确定第一传输次数。
在一种可能的实现方式中,所述终端设备基于时域资源的持续长度,确定所述第一传输次数,包括:所述终端设备基于第一预设关系和所述时域资源的持续长度,确定所述第一传输次数,其中,所述第一预设关系是指:所述时域资源的持续长度与所述第一传输次数的对应关系。这里,终端设备可以结合第一预设关系,确定与时域资源的持续长度对应的第一传输次数。
第六方面,提供了一种确定资源分配的方法,包括:终端设备基于传输配置指示TCI状态的个数,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。因此,终端设备可以根据TCI状态的个数,确定第一传输次数。
在一种可能的实现方式中,所述终端设备基于TCI状态的个数,确定第一传输次数,包括:所述终端设备基于第一预设关系确定所述第一传输次数,其中,所述第一预设关系是指:所述TCI状态的个数与所述第一传输次数的对应关系。这里,终端设备可以结合第 一预设关系,确定与TCI状态的个数对应的第一传输次数。
第七方面,提供了一种确定资源分配的方法,包括:终端设备基于解调参考信号DMRS端口的数量,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。因此,终端设备可以根据DMRS端口的数量,确定第一传输次数。
在一种可能的实现方式中,所述终端设备基于DMRS端口的数量,确定第一传输次数,包括:所述终端设备基于第一预设关系确定所述第一传输次数,其中,所述第一预设关系是指:所述DMRS端口的数量与所述第一传输次数的对应关系。这里,终端设备可以结合第一预设关系,确定与DMRS端口的数量对应的第一传输次数。
第八方面,提供了一种确定资源分配的方法,包括:终端设备接收来自网络设备的无线资源控制RRC信令,所述RRC信令用于向所述终端设备通知第一时域单元;所述终端设备根据第一预设关系以及时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在所述第一时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在所述第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。因此,终端设备通过网络设备发送的RRC信令,可以或者在哪些时域单元中确定第一传输次数。
可选地,所述RRC信令包括以下信息中的一项或多项:第一时域单元占用的符号个数,所述第一时域单元的起始符号位置,所述第一时域单元的结束符号位置。
一种可能的实现方式中,网络设备向终端设备发送信令,向终端设备指示多个预设第一传输次数中的一个生效;终端设备接收到该信令后,确定相应的第一传输次数。
第九方面,提供了一种确定资源分配的方法,包括:终端设备接收RRC信令,所述RRC信令用于指示第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数,所述第一传输次数与时域资源的持续长度相关联;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。因此,终端设备通过网络设备发送的RRC信令,可以获取第一传输次数。
第十方面,提供了一种确定资源分配的方法,包括:网络设备确定无线资源控制RRC信令,所述RRC信令用于指示第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数,所述第一传输次数与时域资源的持续长度相关联;所述网络设备向终端设备发送RRC信令。因此,网络设备可以通过RRC信令,向终端设备提供第一传输次数。
第十一方面,提供了一种通信装置,包括用于执行第一方面中任一种可能实现方式中的方法的各个模块或单元,或者,包括用于执行第三方面中任一种可能实现方式中的方法的各个模块或单元,或者,包括用于执行第五方面中任一种可能实现方式中的方法的各个模块或单元,或者,包括用于执行第六方面中任一种可能实现方式中的方法的各个模块或单元,或者,包括用于执行第七方面中任一种可能实现方式中的方法的各个模块或单元,或者,包括用于执行第八方面中任一种可能实现方式中的方法的各个模块或单元,或者,包括用于执行第九方面中任一种可能实现方式中的方法的各个模块或单元。
第十二方面,提供了一种通信装置,包括处理器。该处理器与存储器耦合,可用于执 行存储器中的指令,以实现上述第一方面中任一种可能实现方式中的方法,或者,以实现上述第三方面中任一种可能实现方式中的方法,或者,以实现上述第五方面中任一种可能实现方式中的方法,或者,以实现上述第六方面中任一种可能实现方式中的方法,或者,以实现上述第七方面中任一种可能实现方式中的方法,或者,以实现上述第八方面中任一种可能实现方式中的方法,或者,以实现上述第九方面中任一种可能实现方式中的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合。
在一种实现方式中,该通信装置为终端设备。当该通信装置为终端设备时,所述通信接口可以是收发器,或,输入/输出接口。
在另一种实现方式中,该通信装置为配置于终端设备中的芯片。当该通信装置为配置于终端设备中的芯片时,所述通信接口可以是输入/输出接口。
可选地,所述收发器可以为收发电路。可选地,所述输入/输出接口可以为输入/输出电路。
第十三方面,提供了一种通信装置,包括用于执行第二方面中任一种可能实现方式中的方法的各个模块或单元,或者,包括用于执行第四方面中任一种可能实现方式中的方法的各个模块或单元,或者,包括用于执行第十方面中任一种可能实现方式中的方法的各个模块或单元。
第十四方面,提供了一种通信装置,包括处理器。该处理器与存储器耦合,可用于执行存储器中的指令,以实现上述第二方面中任一种可能实现方式中的方法,或者,以实现上述第四方面中任一种可能实现方式中的方法,或者,以实现上述第十方面中任一种可能实现方式中的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合。
在一种实现方式中,该通信装置为网络设备。当该通信装置为网络设备时,所述通信接口可以是收发器,或,输入/输出接口。
在另一种实现方式中,该通信装置为配置于网络设备中的芯片。当该通信装置为配置于网络设备中的芯片时,所述通信接口可以是输入/输出接口。
可选地,所述收发器可以为收发电路。可选地,所述输入/输出接口可以为输入/输出电路。
第十五方面,提供了一种处理器,包括:输入电路、输出电路和处理电路。所述处理电路用于通过所述输入电路接收信号,并通过所述输出电路发射信号,使得所述处理器执行第一方面任一种可能实现方式中的方法。
在具体实现过程中,上述处理器可以为芯片,输入电路可以为输入管脚,输出电路可以为输出管脚,处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的,输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的,且输入电路和输出电路可以是同一电路,该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十六方面,提供了一种处理器,包括:输入电路、输出电路和处理电路。所述处理电路用于通过所述输入电路接收信号,并通过所述输出电路发射信号,使得所述处理器执 行第二方面中任一种可能实现方式中的方法。
在具体实现过程中,上述处理器可以为芯片,输入电路可以为输入管脚,输出电路可以为输出管脚,处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的,输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的,且输入电路和输出电路可以是同一电路,该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十七方面,提供了一种处理装置,包括处理器和存储器。该处理器用于读取存储器中存储的指令,并可通过接收器接收信号,通过发射器发射信号,以执行第一方面中任一种可能实现方式中的方法,或者,以执行上述第三方面中任一种可能实现方式中的方法,或者,以执行上述第五方面中任一种可能实现方式中的方法,或者,以执行上述第六方面中任一种可能实现方式中的方法,或者,以执行上述第七方面中任一种可能实现方式中的方法,或者,以执行上述第八方面中任一种可能实现方式中的方法,或者,以执行上述第九方面中任一种可能实现方式中的方法。
可选地,所述处理器为一个或多个,所述存储器为一个或多个。
可选地,所述存储器可以与所述处理器集成在一起,或者所述存储器与处理器分离设置。
在具体实现过程中,存储器可以为非瞬时性(non-transitory)存储器,例如只读存储器(read only memory,ROM),其可以与处理器集成在同一块芯片上,也可以分别设置在不同的芯片上,本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
应理解,相关的数据交互过程例如接收信息或数据可以为从处理器输入该信息的过程,发送信息或数据可以为处理器接收输出能力信息的过程。具体地,处理器输出的数据可以输出给发射器,处理器接收的输入数据可以来自接收器。其中,发射器和接收器可以统称为收发器。
第十八方面,提供了一种处理装置,包括处理器和存储器。该处理器用于读取存储器中存储的指令,并可通过接收器接收信号,通过发射器发射信号,以执行第二方面中任一种可能实现方式中的方法,或者,以执行上述第四方面中任一种可能实现方式中的方法,或者,以执行上述第十方面中任一种可能实现方式中的方法。
可选地,所述处理器为一个或多个,所述存储器为一个或多个。
可选地,所述存储器可以与所述处理器集成在一起,或者所述存储器与处理器分离设置。
在具体实现过程中,存储器可以为非瞬时性(non-transitory)存储器,例如只读存储器ROM,其可以与处理器集成在同一块芯片上,也可以分别设置在不同的芯片上,本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
应理解,相关的数据交互过程例如发送信息或数据可以为从处理器输出该信息的过程,接收信息或数据可以为处理器接收输入能力信息的过程。具体地,处理器输出的数据可以输出给发射器,处理器接收的输入数据可以来自接收器。其中,发射器和接收器可以统称为收发器。
第十九方面,提供一种芯片,包括至少一个处理器和接口。处理器运行使得该芯片执行第一方面中任一种可能实现方式中的方法,或者,执行上述第三方面中任一种可能实现方式中的方法,或者,执行上述第五方面中任一种可能实现方式中的方法,或者,执行上述第六方面中任一种可能实现方式中的方法,或者,执行上述第七方面中任一种可能实现方式中的方法,或者,执行上述第八方面中任一种可能实现方式中的方法,或者,执行上述第九方面中任一种可能实现方式中的方法。
可选地,该处理器可以是逻辑电路、集成电路等。可选地,所述处理器为专用处理器。
第二十方面,提供一种芯片,包括至少一个处理器和接口。处理器运行使得该芯片执行第二方面中任一种可能实现方式中的方法,或者,执行上述第四方面中任一种可能实现方式中的方法,或者,执行上述第十方面中任一种可能实现方式中的方法。
可选地,该处理器可以是逻辑电路、集成电路等。可选地,所述处理器为通用处理器。
第二十一方面,提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序(也可以称为代码,或指令),当所述计算机程序被运行时,使得计算机执行上述第一方面、第三方面、第五方面、第六方面、第七方面、第八方面或第九方面中任一种可能实现方式中的方法。
第二十二方面,提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序(也可以称为代码,或指令),当所述计算机程序被运行时,使得计算机执行上述第二方面、第四方面或第十方面中任一种可能实现方式中的方法。
第二十三方面,提供了一种计算机可读介质,所述计算机可读介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述第一方面、第三方面、第五方面、第六方面、第七方面、第八方面或第九方面中任一种可能实现方式中的方法。
第二十四方面,提供了一种计算机可读介质,所述计算机可读介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述第二方面、第四方面或第十方面中的方法。
第二十五方面,提供了一种通信系统,包括前述的网络设备和终端设备。
第二十六方面,提供一种芯片,包括至少一个处理器和接口。处理器用于运行其中存储的计算机程序,使得该芯片执行第一方面至第十方面中任一种可能实现方式中的方法。
所述芯片还可以包括与所述处理器耦合的存储器,用于存储计算机程序,所述处理器用于执行所述存储器中存储的计算机程序,使得该芯片执行第一方面至第十方面中任一种可能实现方式中的方法。所述耦合为相互独立或集成设置。
可选地,该处理器可以是逻辑电路、集成电路等。可选地,所述处理器为通用处理器。
图1是本申请一个多站点传输的应用场景的示意图;
图2是应用本申请实施例的系统架构的另一个示例图;
图3是时隙内资源分配的一个示意图;
图4是根据本申请实施例的确定资源分配的方法的示意性流程图;
图5是应用本申请实施例的时隙内资源分配的一个例子的示意图;
图6是应用本申请实施例的时隙内资源分配的另一个例子的示意图;
图7是根据本申请另一实施例的确定资源分配的方法的示意性流程图;
图8是根据本申请另一实施例的确定资源分配的方法的一个例子的示意图;
图9是根据本申请另一实施例的确定资源分配的方法的另一个例子的示意图;
图10是本申请实施例的第一时域偏移的另一个例子的示意图;
图11是本申请实施例提供的通信装置的示意性框图;
图12是本申请实施例提供的终端设备的结构示意图;
图13是本申请实施例提供的网络设备的结构示意图。
下面将结合附图,对本申请中的技术方案进行描述。
在本申请的各个实施例中,如果没有特殊说明以及逻辑冲突,不同的实施例之间的术语和/或描述具有一致性、且可以相互引用,不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通信(global system for mobile communications,GSM)系统、码分多址(code division multiple access,CDMA)系统、宽带码分多址(wideband code division multiple access,WCDMA)系统、通用分组无线业务(general packet radio service,GPRS)、长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)、通用移动通信系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统、第五代(5th generation,5G)系统或新无线(new radio,NR)、车联网(vehicle to everything,V2X)系统等。可选地,V2X系统可具体为以下系统中的任一种:车-互联网(vehicle to network,V2N)、车车通信(vehicle to vehicle,V2V)、车人通信(vehicle to pedestrian,V2P)和车与基础设施通信(vehicle to infrastructure,V2I)等。
以下,对本申请中的部分用语进行解释说明,以便于本领域技术人员理解。
1)、终端设备,又称之为用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)等,是一种向用户提供语音/数据连通性的设备,例如,具有无线连接功能的手持式设备、车载设备等。目前,一些终端的举例为:手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备,虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self-driving)中的无线终端、远程医疗(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、车联网(vehicle to everything,V2X)设备、车载通信装置、车载通信芯片等。
2)、网络设备是无线网络中的设备,例如将终端接入到无线网络的无线接入网(radio access network,RAN)节点。目前,一些RAN节点的举例为:gNB、传输接收点(transmission reception point,TRP)、演进型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(base band unit,BBU),或无线保真(wireless fidelity,Wifi)接入点(access point,AP)等。在一种网络结构中,网络设备可以包括集中单元(centralized unit,CU)节点、或分布单元(distributed unit,DU)节点、或包括CU节点和DU节点的RAN设备。
在一些部署中,基站或传输点还可以包括射频单元(radio unit,RU)。CU实现gNB或传输点的部分功能,DU实现gNB或传输点的部分功能,比如,CU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实现无线链路控制(radio link control,RLC)、媒体接入控制(media access control,MAC)和物理(physical,PHY)层的功能。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层信令或PHCP层信令,也可以认为是由DU发送的,或者,由DU+RU发送的。可以理解的是,网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外,CU可以划分为接入网RAN中的网络设备,也可以将CU划分为核心网CN中的网络设备,在此不做限制。
3)、“多个”是指两个或两个以上,其它量词与之类似。在本申请实施例中,终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层,以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit,CPU)、内存管理单元(memory management unit,MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统,例如,Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且,本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定,只要能够通过运行记录有本申请实施例的提供的方法的代码的程序,以根据本申请实施例提供的方法进行通信即可,例如,本申请实施例提供的方法的执行主体可以是终端设备或网络设备,或者,是终端设备或网络设备中能够调用程序并执行程序的功能模块。
另外,本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如,计算机可读介质可以包括,但不限于:磁存储器件(例如,硬盘、软盘或磁带等),光盘(例如,压缩盘(compact disc,CD)、数字通用盘(digital versatile disc,DVD)等),智能卡和闪存器件(例如,可擦写可编程只读存储器(erasable programmable read-only memory,EPROM)、卡、棒或钥匙驱动器等)。另外,本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于,无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
图1是应用本申请实施例的一个多站点传输的应用场景的示意图。如图1所示,终端设备110被多个网络设备120覆盖。终端设备110可以与网络设备120进行通信。终端设备110可能被多个网络设备120调度。终端设备110可以接收多个网络设备120发送的数据,也可以向多个网络设备120发送数据。
终端设备在时域上进行多站的重复传输,利用信道在时间上的不相干性来提高传输的鲁棒性。这里对传输的方向不作限定,可以是上行传输,也可以是下行传输。“传输”包括“接收”和“发送”。
图2是应用本申请实施例的系统架构的另一个示例图。如图2所示,通信系统包括:V2X应用服务器(application server)、V2X设备(包括V2X设备1和V2X设备2)和网络设备。V2X设备间通过PC5接口实现通信。V2X设备间的通信链路定义为侧行链路(sidelink,SL)。V2X设备与V2X应用服务器的通信需要通过网络设备转发,具体即:对于上行,发送端V2X设备通过Uu接口将V2X数据发送至网络设备,网络设备将数据发送至V2X应用服务器进行处理后,再由V2X应用服务器下发至接收方V2X设备;对于下行,V2X应用服务器将V2X数据发送至网络设备,网络设备通过Uu接口将V2X数据发送至V2X设备。
应理解,图2中的V2X设备是终端设备的示例。还应理解,图2中的箭头流向只是以V2X设备1示例性地描述,并不对本申请实施例构成限定,实际上,V2X设备1和V2X设备2之间的通信可以是双向的,且V2X设备2也可以与网络设备进行上行通信,对此不作具体限定。
下面对本申请实施例涉及到的术语或概念进行接收。
时域单元,可以包括子帧、时隙(slot)、微时隙(或迷你时隙)(mini-slot)、符号等。微时隙为时域长度小于时隙的时域单位。其中,一个时隙可以包括14个时域符号,一个微时隙包括的时域符号数小于14,比如2或4或7等等;或者,一个时隙可以包括7个时域符号,一个微时隙包括的时域符号数小于7,比如2或4等等,具体取值也不做限定。
时域单元中包括的数据传输单元是指用于传输数据(比如,下行数据或上行数据)的单元,比如,用于传输物理下行共享信道(physical downlink shared channel,PDSCH)。时域单元中可以包括一个或多个数据传输单元。比如,时域单元是slot,相应的,slot中的每个数据传输单元可以是由该slot中的一个或多个符号组成。
目前,在时域重复传输的时域资源分配的指示方法中,以一个slot为例,网络设备可以通过下行控制信息(DCI)为终端设备动态指示时域偏移,例如符号偏移量,该符号偏移量用于表示该slot中第一段传输数据的时域资源的最后一个符号与第二段传输数据的时域资源的第一个符号之间的偏移量。终端设备基于该符号偏移量,以及起始符号位置S,符号长度L,以及在该slot中重复传输数据的次数,得到一个slot内的时域资源分配。以图3中的示例进行描述,假设网络设备通过DCI配置[S,L]=[1,2],偏移量O1=3,并通过无线资源控制(radio resource control,RRC)配置一个slot内的重复传输次数K1=2。对应的,终端设备基于S,L,K1,O1可以得到如图3中所示的资源分配。由K1=2可知,slot内包括两段重复传输数据的时域资源。在图3中,第一段传输数据的时域资源占用符号1和符号2,该符号1和符号2称为一个数据传输单元,第二段传输数据的时域资源占用符号6和符号7,该符号6和符号7称为一个数据传输单元。第一段传输数据的时域资源与第二端传输数据的时域资源之间的间隔为3个符号。其中,重复传输次数为2,slot中包括了两段传输数据的时域资源。
本申请的发明人发现,这种方式需要在DCI中增加偏移量O1,从而增加了DCI开销。 为了避免该问题,本申请实施例中提出了一种确定资源分配的方法,在不需要增加DCI开销的情况下,可以确定slot内重复传输的时域资源位置。
图4示出了根据本申请实施例的确定资源分配的方法400的示意性流程图。如图4所示,所述方法400包括:
S410,终端设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数。
示例性地,以时域单元是slot为例,时域资源的起始位置可以是时域起始符号,时域资源的持续长度可以是符号长度。
终端设备可以根据起始和长度指示值(start and length indicator value,SLIV)计算时域资源的起始位置以及时域资源的持续长度。可选地,在S410前,所述方法400还包括:终端设备接收来自网络设备的DCI,DCI用于指示时域资源的起始和长度值,比如,起始和长度指示值SLIV域;终端设备根据起始和长度值,确定所述时域资源的起始位置和所述时域资源的持续长度。
示例性地,以时域资源的起始位置是起始符号位置S,时域资源的持续长度是L为例,网络设备在动态调度时,在DCI中会指示重复传输的时域资源分配,比如,SLIV域。终端设备可以根据SLIV域,可以计算起始符号位置S和L。或者,网络设备也可以直接向终端设备发送起始符号位置S和L。
可选地,第一预设关系可以是预定义的表格。终端设备可以通过查表的方式,得到第一传输次数。或者,第一预设关系可以为预定义的公式。终端设备通过该公式,计算第一传输次数。比如,第一传输次数可以表示为K1。
S420,终端设备根据第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置。
第一传输次数是指在一个时域单元中重复传输数据的次数。这里,时域单元中重复传输数据的次数,与数据传输单元的个数相同。这里,终端设备基于第一传输次数,可以得到第一时域单元中的数据传输单元的个数。
至少一个数据传输单元可以理解为一个或多个数据传输单元。一个数据传输单元为:传输一个物理下行信道所占用的时域资源。例如,一个数据传输单元可以是传输同一个物理下行PDSCH所占用的时域资源。同一个PDSCH可以重复传输多次,每次占用一个数据传输单元。另外,所述同一个PDSCH可以是来自同一个TRP的,也可以来自不同的TRP,同一个PDSCH来自不同的TRP是通过不同的TCIstate进行区分的。一个数据传输单元用于传输一个PDSCH。比如,图3中的符号1和符号2组成一个数据传输单元,符号6和符号7组成一个数据传输单元。这里,多站传输的PDSCH可以使用相同的频域资源。需要说明的是,在至少一个数据传输单元的传输的PDSCH,每个数据传输单元传输一个PDSCH,这些PDSCH可以来自不同的TRP,不同的TRP具有不同的TCI状态,因此在不同的数据传输单元上传输的PDSCH可以认为是不同的。以图3中的示意为例,符号1与符号2上传输的PDSCH来自TRP1,符号6与符号7上传输的PDSCH来自TRP2,TRP1与TRP2是不同的TRP。
本申请中,仅以PDSCH为例进行说明,本申请公开的方法,还可以应用到其他下行数据的重复传输中。
示例性地,第一时域单元为slot,相应的,slot中的一个数据传输单元为传输一个物理下行共享信道所占用的时域资源。
S430,终端设备在第一时域单元中的至少一个数据传输单元上进行数据传输。这里,终端设备可以在至少一个数据传输单元中进行上行传输,或者,进行下行传输,对此不作限定。比如,终端设备可以在至少一个数据传输单元上接收来自不同网络设备(比如,不同TRP)的PDSCH。
在本申请实施例中,终端设备通过第一预设关系、时域资源的起始位置以及时域资源的持续长度,得到第一传输次数;然后,终端设备根据第一传输次数,确定至少一个数据传输单元的时域位置;最后,终端设备在第一时域单元中的至少一个数据传输单元上进行数据传输。这里,在不需要增加DCI开销的情况下,终端设备可以确定出第一传输次数,有助于节省DCI开销。
下文将详细描述终端设备如何基于第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数。
作为一种实现方式,第一预设关系是指:时域资源的起始位置、时域资源的持续长度与第一传输次数的对应关系。其中,S410包括:所述终端设备基于所述时域资源的起始位置以及所述时域资源的持续长度,在所述第一预设关系中查找对应的所述第一传输次数。
示例性地,第一预设关系可以理解为由S、L与K1组成的表格。终端设备在得到S和L后,通过查表可以得到对应K1的取值。下文给出了在不同的偏移量下,由S、L与K1组成的8个表格。也就是说,表1至表8是基于不同的默认偏移量设计的,即隐含指示了偏移量,从而不需要增加DCI开销。终端设备可以基于S和L,在下述表格中查找对应的K1值。
这里作统一说明,下文的表1至表8是以一个slot包括14个符号为例设计的。各个表格中K1的取值是以不出现某个数据传输单元跨slot为原则设计的,即可以避免造成传输边界问题。
另外,下文的表1至表8中,传输长度L的取值为{2,4,7}。这是因为,对于slot内的重复传输,除了第一个数据传输单元之外,其他段重复传输的起始符号位置S可能不在slot的前三个符号中,因此只能采用标准协议中的PDSCH映射类型为type B下的传输长度,因此可用的传输长度L的取值为{2,4,7}。在本申请实施例中,L的单位可以是基于实际情形选取的时域单位,比如,L的单位可以是符号。需要说明的是,在下面的表格中,当L=7时,只有当S=0,且偏移量为0时才能在一个slot内进行2次重复传输,而在其他情况中,无法进行slot内的重复传输。当L取值为7时,只有在下述表1和表9中可以查到相应的K1值,这样,其他表格也可以去掉L=7。
下面表1中是以偏移量为0设计的,如下表1所示:
表1
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 |
L=4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | x | x | x | x |
L=7 | 2 | x | x | x | x | x | x | x | x | x | x |
下面表2中是以偏移量为1设计的,如下表2所示:
表2
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | x |
L=4 | 3 | 2 | 2 | 2 | 2 | 2 | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表3中是以偏移量为2设计的,如下表3所示:
表3
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | x | x |
L=4 | 2 | 2 | 2 | 2 | 2 | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表4中是以偏移量为3设计的,如下表4所示:
表4
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | x | x | x |
L=4 | 2 | 2 | 2 | 2 | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表5中是以偏移量为4设计的,如下表5所示:
表5
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | x | x | x | x |
L=4 | 2 | 2 | 2 | x | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表6中是以偏移量为5设计的,如下表6所示:
表6
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 2 | 2 | 2 | 2 | 2 | 2 | x | x | x | x | x |
L=4 | 2 | 2 | x | x | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表7中是以偏移量为6设计的,如下表7所示:
表7
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 2 | 2 | 2 | 2 | 2 | x | x | x | x | x | x |
L=4 | 2 | x | x | x | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表8中是以偏移量为7设计的,如下表8所示:
表8
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 2 | 2 | 2 | 2 | x | x | x | x | x | x | x |
L=4 | x | x | x | x | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
在上述表1至表8中,如果查表得到的K1的取值为x,则表示根据给定的S、L与偏移量,在目前1个slot包含14个符号的情况下无法进行slot内的重复传输,否则会出现数据传输单元跨slot的边界问题。x也可以一个默认的数字,该数字表示无法进行slot内的重复传输,或者是用符号“-”替换,或者,也可以是其他不表示数字的符号替换,对此不作具体限定。
可选地,在多站协作技术下,当传输场景中存在的TCI状态数量为偶数时,第一传输次数为偶数。可选地,若将第一传输次数为偶数作为设计规则,则上述表1至表8也可以被设计为下述表9至表16。
下面表9中是以偏移量为0设计的,如下表9所示:
表9
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 6 | 6 | 6 | 4 | 4 | 4 | 4 | 2 | 2 | 2 | 2 |
L=4 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | x | x | x | x |
L=7 | 2 | x | x | x | x | x | x | x | x | x | x |
下面表10中是以偏移量为1设计的,如下表10所示:
表10
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 4 | 4 | 4 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | x |
L=4 | 2 | 2 | 2 | 2 | 2 | 2 | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表11中是以偏移量为2设计的,如下表11所示:
表11
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | x | x |
L=4 | 2 | 2 | 2 | 2 | 2 | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表12中是以偏移量为3设计的,如下表12所示:
表12
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | x | x | x |
L=4 | 2 | 2 | 2 | 2 | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表13中是以偏移量为4设计的,如下表13所示:
表13
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | x | x | x | x |
L=4 | 2 | 2 | 2 | x | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表14中是以偏移量为5设计的,如下表14所示:
表14
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 2 | 2 | 2 | 2 | 2 | 2 | x | x | x | x | x |
L=4 | 2 | 2 | x | x | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表15中是以偏移量为6设计的,如下表15所示:
表15
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 2 | 2 | 2 | 2 | 2 | x | x | x | x | x | x |
L=4 | 2 | x | x | x | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
下面表16中是以偏移量为7设计的,如下表16所示:
表16
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 | S=7 | S=8 | S=9 | S=10 |
L=2 | 2 | 2 | 2 | 2 | x | x | x | x | x | x | x |
L=4 | x | x | x | x | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x | x | x | x | x |
在上述表9至表16中,如果查表得到的K1的取值为x,则表示根据给定的S、L与偏移量,在目前1个slot包含14个符号的情况下无法进行slot内的重复传输,否则会出现数据传输单元跨slot的边界问题。
应理解,标准中可以预定义上述表1至表16中的一个或多个表格。终端设备或网络设备可以根据系统默认的偏移量,或者,基于网络设备发送的高层信令(比如RRC信令)指示的偏移量,或者,基于网络设备发送的DCI所指示的偏移量,在上述表格中选择对应的表格,然后再基于起始符号位置S和L进行查表,得到相应的重复传输次数,即第一传输次数。
可选地,网络设备向终端设备发送指示信息,该指示信息指示终端设备根据第一预设关系确定第一传输次数。对应的,终端设备接收该指示信息。第一预设关系的定义参考前文解释,这里不作赘述。例如,网络设备可以通过RRC信令或DCI向终端设备发送该指示信息,以便于指示终端设备采用哪个表格确定第一传输次数。这里,终端设备可以根据网络设备指示的表格查找第一传输次数。
还应理解,上述表1至表16只是示例性地举例,并不对本申请实施例的保护范围构 成限定。事实上,随着标准演进,S和L的取值可能发生变化,但本领域技术人员基于上述表格设计原则,可以得到相应的表格。
作为另一种实现方式,第一预设关系是指预定义的公式,该公式可以用来计算第一传输次数。可选地,S410包括:终端设备采用以下公式,计算所述第一传输次数:
K1=[(14-S-L)/(L+O1)]+1
其中,K1是所述第一传输次数,S表示所述时域资源的起始位置,L表示所述时域资源的持续长度,O1为偏移量。示例性地,O1表示一个时域单元内,每个数据传输单元之间的符号间隔。
O1指的是上一个数据传输单元的尾部(比如最后一个符号)与下一个数据传输单元的头部(比如第一个符号)之间的间隔。O1可以采用默认的偏移量,O1可以取大于或等于0的整数。终端设备在得到S和L后,将S、L与O1代入上述公式,可以计算出K1的取值。
类似地,在多站协作技术下,当传输场景中存在的TCI状态数量为偶数时,第一传输次数为偶数。为了满足第一传输次数为偶数,上述公式需适应性的调整为,假设K=[(14-S-L)/(L+O1)]+1:如果K=2,4,6,则K1=K;如果K=3,5,7,则K1=K-1;如果K=1,则K1=x,其中,x的解释可以参考前文的描述,这里不再赘述。
因此,终端设备通过上述第一预设关系,可以得到对应的第一传输次数。
需要说明的是,上面描述了终端设备通过第一预设关系获取第一传输次数的方案,类似地,网络设备也可以通过第一预设关系获取第一传输次数,为了避免赘述,这里不展开描述。
在本申请实施例中,终端设备可以使用第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置。终端设备还可以获取网络设备指示的重复传输数据的次数,比如,第二传输次数,然后基于第一传输次数和第二传输次数的大小关系,来决定使用哪个传输次数。下面将具体进行描述。
可选地,所述方法400还包括:网络设备向终端设备发送无线资源控制RRC信令,所述RRC信令包括第二传输次数,所述第二传输次数是向所述终端设备指示的在时域单元中重复传输数据的次数。对应的,终端设备接收来自网络设备的无线资源控制RRC信令。其中,S420,包括:终端设备在第二传输次数和第一传输次数中选择最小的传输次数;终端设备根据最小的传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置。
也就是说,终端设备将基于第一预设关系得到第一传输次数,与网络设备配置的第二传输次数进行比较,然后选择最小的传输次数,基于最小的传输次数在第一时域单元中确定至少一个数据传输单元的时域位置。比如,第一传输次数小于第二传输次数,则选择第一传输次数;或者,第一传输次数大于第二传输次数,则选择第二传输次数。这样,如果网络设备配置的第二传输次数过大,则第一传输次数可以起到约束作用,能够避免时域资源不够传输的情况。或者,如果终端设备基于第一预设关系得到的第一传输次数过大,但是并不需要过大的传输次数进行传输,则第二传输次数可以起到约束作用,从而可以在该第一时域单元调度其他业务,有助于提升频谱效率。这里,第二传输次数是网络设备通过RRC信令指示的,不需要增加DCI开销。
为了便于描述,这里以第一传输次数为K1,第二传输次数为K2进行描述。在动态调度时,由于是实时调度,可能在时域单元中某些符号上已经有了其他业务的存在,终端设备在确定数据传输单元时可能占用了slot中相对较后的符号,这种情况下,如果终端设备仅采用K2确定数据传输单元,可能会造成时域资源不够用,因此实际传输还需要受到调度的起始符号位置S和L的限制。以图5中的示例进行描述,假设符号0至4被其他业务占用,S=5,L=2,默认的偏移量为1个符号,此时为2个TRP传输的情况,终端设备通过第一预设关系(比如表10或计算公式)得到K1=2。假设网络设备配置的传输次数K2=4,则min{K2,K1}=min{4,2}=2,终端设备可以选择K1=2作为实际重复传输次数,确定出slot1中的两个数据传输单元,第一个数据传输单元占用符号5和符号6,第二个数据传输单元占用符号8和符号9。
可选地,对于K1大于K2的情形,终端设备在确定数据传输单元时,可以按照时序递增顺序优先选择包括最多TCI状态的K2次重复传输,以便于保证分集增益。这里结合图6中的例子进行说明,假设K1=4,K2=2,S=1,L=2,默认偏移量O1为1个符号,终端设备选择K2=2作为实际重复传输次数。
如图6所示,在第一种情形中,网络设备1发送的数据在第一个数据传输单元(占用符号1和符号2)和第三个数据传输单元(占用符号7和符号8),网络设备2发送的数据位于第二个数据传输单元(占用符号4和符号5)和第四个数据传输单元(占用符号10和符号11)。终端设备基于实际重复传输次数为2,在这四个数据传输单元中选择两个数据传输单元。这里,终端设备基于时序递增顺序,以包括来自不同网络设备的最多TCI状态为原则,选择了第一个数据传输单元和第二个数据传输单元。
如图6所示,在第二种情形中,网络设备1发送的数据在第一个数据传输单元(占用符号1和符号2)和第二个数据传输单元(占用符号4和符号5),网络设备2发送的数据位于第三个数据传输单元(占用符号7和符号8)和第四个数据传输单元(占用符号10和符号11)。终端设备基于实际重复传输次数为2,在这四个数据传输单元中选择两个数据传输单元。这里,终端设备基于时序递增顺序,以包括来自不同网络设备的最多TCI状态为原则,选择了第一个数据传输单元和第三个数据传输单元。
因此,终端设备以包括来自不同网络设备的最多TCI状态的原则选择数据传输单元,有助于实现分集增益。
应理解,图5至图6中的例子仅仅是为了便于本领域技术人员理解本申请实施例,并非要将本申请实施例限于例示的具体场景。本领域技术人员根据图5至图6的例子,显然可以进行各种等价的修改或变化,这样的修改或变化也落入本申请实施例的范围内。
对于网络设备而言,如果两个传输次数分别为K1和K2,假设除了网络设备传输的业务外,没有其他业务,比如,网络设备只有PDSCH需要传输,不需要传输其他业务或者参考信号,那么网络设备通过RRC配置的K2应该与K1相同。假设K2与K1不同,K1大于K2,则可能是终端设备根据自身能力确定不需要K1次接收也可以完成信道估计;或者,K1小于K2,则可能是由于重复传输的时域起始位置比较靠后(比如,由于slot中前面部分符号已被其他业务或参考信号占用,导致S的索引值比较大),而K2是半静态配置的,可能会出现K2过大的情形,若根据K2在slot中确定数据传输单元,可能会导致数据传输单元的时域资源位置超出slot范围。对于K1与K2的不同的情形,无论是K1大 于K2还是K1小于K2,网络设备都应该按照K1进行传输,然后终端设备对K1与K2进行比较,选择最小的传输次数。
上文描述了在时域单元内进行重复传输数据的方案,下面将描述时域单元间重复传输数据的方案。应理解,上述时域单元内进行重复传输数据的方案与下文时域单元间重复传输数据的方案可以组合使用,也可以各自独立使用,对此不作限定。
图7示出了根据本申请另一实施例的确定资源分配的方法700的示意性流程图。如图7所示,所述方法700包括:
S710,终端设备获取第一时域偏移;所述第一时域偏移为第二时域单元中首个数据传输单元对应的第一时域资源的起始位置相对于第二时域资源的起始位置的偏移量,其中,所述第二时域资源的起始位置位于所述第二时域单元中,且与所述终端设备使用的第一时域单元中首个数据传输单元对应的时域资源的起始位置相同,比如,该相同表示起始位置对应的索引相同,例如,slot1中索引为5的符号和slot2中索引为5的符号,称为索引相同;或者,该起始位置与其所在的时域单元的第一个符号之间的长度相同,或者该起始位置相对于其所在的时域单元的第一个符号之间的相对位置相同,例如,slot1中符号5相对于slot1的第一个符号0,其相对位置为5-0=5;slot2中符号5相对于slot2的第一个符号0,其相对位置为5-0=5,称为长度相同,或相对位置相同。本领域技术人员可以理解,这里仅以时域单元为slot,时域资源的起始位置为符号起始位置为例进行说明的,其他粒度的时域单元与之类似。
其中,所述第一时域单元是重复传输数据的时域单元中的第一个时域单元,所述第二时域单元是所述重复传输数据的时域单元中除所述第一时域单元外的任一时域单元。
“重复传输数据的时域单元”可以是多个时域单元,例如,多个slot。以slot为例进行说明,在本申请实施例中,第一时域单元是多个slot中的首个slot,第二时域单元是多个slot中除去首个slot中的任一slot。
可选地,第一时域偏移可以适用于多个slot中除去首个slot外的任一slot。也就是说,终端设备在确定后续的slot中的首个数据传输单元对应的第一时域资源的起始位置时,均可以利用相应的第一时域偏移来确定首个数据传输单元对应的第一时域资源的起始位置,即除了第一个slot,其他slot中用于传输PDSCH的位置都是一样的。或者,网络设备可以为每个slot配置一个时域偏移,时域偏移的取值可以不同,这样更能实现时域资源的灵活调度。
举例来说,第一时域偏移可以理解为通过差分方式定义的两个时域单元中的数据传输单元之间的偏移量。举例来说,索引Index1为第二时域单元中首个数据传输单元实际对应的符号位置;Index2为终端设备沿用第一时域单元中的首个数据传输单元实际对应的符号位置时,在第二时域单元中确定的首个数据传输单元对应的符号位置,其中,第一时域偏移可以表示两个索引值之间的偏移量,例如Index1的值为2,Index2的值为4,则两个索引值之间的偏移量为4-2=2。
可选地,所述方法700还包括:终端设备获取第一传输次数,第一传输次数是指在一个时域单元中重复传输数据的次数。比如,第一传输次数是指slot内重复传输数据的次数。具体而言,时域单元中重复传输数据的次数,与时域单元中包括的数据传输单元的个数是相同的。第一传输次数可以认为是一个时域单元中数据传输单元的个数。
本申请实施例对第一传输次数的获取方式不作限定。可选地,终端设备可以采用前文实施例描述的第一预设关系获取第一传输次数,或者,也可以是接收网络设备配置的。
可选地,终端设备获取第一传输次数,包括:终端设备接收来自网络设备的第一信令,所述第一信令包括所述第一传输次数,所述第一信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
网络设备可以通过DCI动态配置第一传输次数。比如,网络设备采用1比特指示第一传输次数,比特取值为0表示第一传输次数为2,比特取值为1表示第一传输次数为4。又比如,网络设备采用2比特指示第一传输次数,比特取值为0表示第一传输次数为1,比特取值为1表示第一传输次数为2,比特取值为2表示第一传输次数为4,比特取值为3表示第一传输次数为6。
网络设备也可以通过RRC信令或MAC CE直接配置第一传输次数,比如,第一传输次数的取值范围可以是{2,4,6}。
可选地,S710包括:终端设备接收来自网络设备的第二信令,所述第二信令包括所述第一时域偏移,所述第二信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素(medium access control control element,MAC CE)。
网络设备可以通过DCI动态配置第一时域偏移。比如,网络设备通过2比特指示第一时域偏移,具体为,比特00表示第一时域偏移为0,比特01表示第一时域偏移为1,比特10表示第一时域偏移为2,比特11表示第一时域偏移为-1。又比如,网络设备通过3比特指示第一时域偏移,具体为,比特000表示第一时域偏移为0,比特001表示第一时域偏移为1,比特010表示第一时域偏移为2,比特011表示第一时域偏移为3,比特100表示第一时域偏移为4,比特101表示第一时域偏移为-1,比特110表示第一时域偏移为-2,比特111表示第一时域偏移为-3。第一时域偏移取值的正负,用于区分向左或向右偏移,比如,第一时域偏移取值为正,表示向右偏移,第一时域偏移取值为正,表示向左偏移,对此不作具体限定。
或者,网络设备可以通过RRC信令或MAC CE配置第一时域偏移。第一时域偏移的取值范围比较灵活。比如,若时域资源的持续长度L=2,第一时域偏移的取值范围为[-12,+12],共25个取值,对具体取值不作具体限定。
或者,网络设备通过RRC信令配置预定义的规则和/或组合,并通过DCI进行指示。比如,网络设备通过RRC信令配置组合{0,-2,+2,+4},然后通过少量比特位来指示第一时域偏移在组合中的取值,对具体取值不作具体限定。
或者,第一时域偏移可以是预定义的值,比如,{0,1,2,3,4}中的任一取值,终端设备可以直接获取,对此不作限定。
应理解,当第一时域偏移取值为0时,表示每个时域单元内重复传输的时域资源位置均相同。
S720,终端设备根据所述第一时域偏移,在所述第二时域单元中确定首个数据传输单元的时域位置。
在本申请实施例中,终端设备在得到第一时域偏移后,可以在第二时域单元中重新确定首个数据传输单元的时域位置。这样,第二时域单元中的首个数据传输单元的时域位置对应的索引号,可以不沿用第一时域单元的首个数据传输单元的的时域位置对应的索引 号。这样做的好处是:如果有突发业务或优先级比较高的业务需要在第二时域单元中传输,引入第一时域偏移可以为这些业务让出时域资源,从而实现时域资源的灵活调度。
可选地,所述方法700还包括:终端设备根据第一时域偏移,第一传输次数,以及第二时域偏移,在第二时域单元中确定至少一个数据传输单元的时域位置;第二时域偏移表示第二时域单元中的每个数据传输单元之间的符号间隔。
具体而言,终端设备在确定第二时域单元中首个数据传输单元的时域位置后,还可以进一步确定第二时域单元中的至少一个数据传输单元的时域位置,即第二时域单元内重复传输数据的各个数据传输单元。
可选地,所述方法700还包括:终端设备接收来自网络设备的第三信令,所述第三信令包括所述第二时域偏移,所述第三信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
网络设备可以通过DCI动态配置第二时域偏移。比如,网络设备通过1比特指示第二时域偏移,具体为,比特0表示第二时域偏移为0,比特1表示第二时域偏移为1。又比如,网络设备通过2比特指示第二时域偏移,具体为,比特00表示第二时域偏移为0,比特01表示第二时域偏移为1,比特10表示第二时域偏移为2,比特11表示第二时域偏移为3,对此不作具体限定。
或者,网络设备可以通过RRC信令或MAC CE配置第二时域偏移。第二时域偏移的取值范围比较灵活。比如,第二时域偏移的取值范围为[0,12],共13个取值,对此不作具体限定。
或者,第二时域偏移可以是预定义的值,比如,{0,1,2,3,4}中的任一取值,终端设备可以直接获取,对此不作限定。
可选地,所述方法700还包括:终端设备获取第三传输次数,所述第三传输次数与所述重复传输数据的时域单元的个数相同;终端设备根据所述第三传输次数,在与第三传输次数相同个数的时域单元上进行数据传输。这里,第三传输次数可以理解为用于确定时域单元的个数。比如,第三传输次数是2,则终端设备需要在两个slot上进行数据传输。
为了便于理解,这里结合图8中的示意进行描述。假设第二传输次数为K2=2,则如图8所示,存在两个时域单元重复传输数据,比如,slot1和slot2。假设第一传输次数为K1=2,L=2,则如图8所示,每个slot中包括两个数据传输单元。其中,slot1中的第一个数据传输单元占用符号1和符号2,第二个数据传输单元占用符号6和符号7。假设第一时域偏移为O2=1,则如图8所示,第一时域偏移是slot2中的第一个数据传输单元实际对应的起始符号位置(即符号2)与虚线框所示的第一个数据传输单元(对应符号1和符号2)对应的起始符号位置(即符号1)之间的偏移量。虚线框所示的第一个数据传输单元是指:终端设备采用与slot1中一致的起始符号位置(即起始符号为1)时确定的数据传输单元。假设第二时域偏移O1=3,时域资源的持续长度L=2,则如图8所示,slot2中的第二个数据传输单元的首个符号与第一个数据传输单元的最后一个符号之间间隔3个符号。因此,如图8所示,终端设备基于O2、O1以及L可以得到slot2中的数据传输单元的符号位置。
这里结合图9中的示例进一步描述本申请实施例。假设O1=3,O2=4,K1=2,K2=2,[S,L]=[1,2],终端设备基于O1、O2、K1、K2和[S,L]的取值可以得到如9中所示的 资源分配。具体地,终端设备基于[S,L]、O1=3、K1=2可以确定出slot1中的两个数据传输单元,第一个数据传输单元占用符号1和符号2,第二个数据传输单元占用符号6和符号7。接着,终端设备基于O2=4,可以得到slot2的第一个数据传输单元的首个符号位置为5。进一步地,终端设备基于L=2,O1=3,得到第二个数据传输单元为符号10和符号11。这里,由于在slot1中进行数据传输的业务,已经有很大概率成功解译,因此后续重复传输数据的优先级可以降低。在引入O2后,slot2中用于传输该业务的数据传输单元可以向前或向后偏移,为其他更高优先级的业务或紧急的业务或信号(比如信道状态信息参考信号(channel state information reference signal,CSI-RS)让出资源位置,从而规避与其他更高优先级的业务或紧急的业务的冲突。如图9所示,突发业务或者优先级更高的业务或信号需要在slot2中的符号0至符号4上传输,为了避免了调度冲突,在图9中设置O2=4,使得PDSCH在slot2中的符号5,符号6,符号10以及符号11上传输,从而可以合理地同时调度这些业务。
又例如,以图9中的示意为例进行说明,slot1中的数据传输单元占用符号1,2,6,7,如果没有紧急业务,那么slot2中的数据传输单元也可以沿用slot1中的符号索引,即符号1,2,6,7;但是如果slot2中出现紧急业务需要在符号1,2,6,7上传输,那么通过设置O2可以有效规避冲突。比如,设置O2=2或O2=3(图9中未示出),这样slot2中的数据传输单元在时域上向右平移,若O2=2,向右平移2个符号,或,若O2=3,向右平移3个符号,可以让出符号1,2,6,7,从而有效规避冲突。
可选地,本申请实施例还提供了第一时域偏移的另一形式。第一时域偏移可以是第二时域单元的起始符号位置,与第二时域单元中的首个数据传输单元对应的起始符号位置之间的偏移量。如图10所示,在图10的上图中,第一时域偏移O2=2,即shot2的起始符号位置(符号0)与slot2的第一个数据传输单元的第一个符号的实际符号位置(符号2)之间的偏移量。
可选地,本申请实施例还提供了第一时域偏移的又一种形式。第一时域偏移可以是第一时域单元的最后一个数据传输单元的最后一个符号位置,与第二时域单元中的首个数据传输单元对应的起始符号位置之间的偏移量。如图10所示,在图10的下图中,第一时域偏移O2=8,即shot1的最后一个数据传输单元的最后一个符号位置(符号7),与slot2的第一个数据传输单元的第一个符号的实际符号位置(符号2)之间的偏移量。
因此,终端设备可以采用通过上述各种形式的第一时域偏移,在第二时域单元中确定首个数据传输单元的时域位置。
需要说明的是,上面描述了终端设备通过第一时域偏移确定第二时域单元中确定首个数据传输单元的时域位置的方案,类似地,网络设备也可以通过第一时域偏移确定第二时域单元中确定首个数据传输单元的时域位置,为了避免赘述,这里不展开描述。应理解,图8至图10中的例子仅仅是为了便于本领域技术人员理解本申请实施例,并非要将本申请实施例限于例示的具体场景。本领域技术人员根据图8至图10的例子,显然可以进行各种等价的修改或变化,这样的修改或变化也落入本申请实施例的范围内。
本申请还提供了一种确定资源分配的方法,包括:
终端设备基于时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中 确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
具体而言,终端设备可以依据时域资源的持续长度,确定第一传输次数的取值。然后,终端设备使用第一传输次数,在第一时域单元中确定至少一个数据传输单元,并进行数据传输。
在一种实施例中,终端设备基于第一预设关系和时域资源的持续长度,确定第一传输次数的取值。
示例性地,对于当前标准协议中的正常循环前缀PDSCH映射类型为type B下的持续长度{2,4,7},以及扩展循环前缀PDSCH映射类型为type B下的持续长度{2,4,6},第一预设关系可以定义为:当L>2(比如,L=4,6,7)时,第一传输次数的取值为2;当L不大于2(比如,L=2)时,第一传输次数的取值为4。这样,终端设备基于L的取值,结合第一预设关系可以确定第一传输次数的取值。
本实施例中第一传输次数和时域资源的持续长度之间的第一预设关系(比如,以第一传输次数为K1进行说明,L=2时,K1=4;L>2时,K1=2)使得对资源的利用更加合理。具体来说,参考前文第一预设关系为表格的方法,可以看到对于TCI状态数量为偶数的情况:在表9-表16中,当L=4或7时,在一个slot内唯一可能的K1为2,即每个TRP只能传输一次PDSCH,否则第一传输次数为x,即无法进行slot内的时域重复传输;在表9-表16中,当L=2时,可以得到可能的第一传输次数为2/4/6,即每个TRP传输1/2/3次PDSCH。相比较于L=4/7的PDSCH,L=2的PDSCH具有较高的编码码率,因此当每个TRP只传输1次PDSCH时,会出现可靠性较差的情况,尤其是当两个TRP存在传输功率差时,这种情况会更加明显。因此,每个TRP传输2次PDSCH对于L=2为更合理的传输情况,既能避免PDSCH传输占用过多的时域资源,又能避免传输可靠性无法达到URLLC要求。
这样,终端设备根据上述第一预设关系,基于L的取值可以得到对应的第一传输次数。比如,当L=4,6,7时,第一传输次数的取值为2,在2个TRP的情况下每个TRP传输1次PDSCH;当L=2时,第一传输次数的取值为4,在2个TRP的情况下每个TRP传输2次PDSCH。又比如,当L>2时,第一传输次数的取值为2,在2个TRP的情况下每个TRP传输1次PDSCH;当L=2时,第一传输次数的取值为4,在2个TRP的情况下每个TRP传输2次PDSCH。
需要说明的是,上面描述了终端设备通过第一预设关系以及时域资源的持续长度,获取第一传输次数的方案。类似地,网络设备也可以通过上述第一预设关系获取第一传输次数,为了避免赘述,这里不再详细描述。
在一种实施例中,终端设备也可以根据时域资源的起始位置和时域资源的持续长度,确定第一传输次数。
示例性地,以时域资源的起始位置为S,时域资源的持续长度为L,第一传输次数是K1,一个slot由14个符号组成为例进行说明,第一预设关系可以定义为如下表17所示。
表17
通过上述表17,终端设备可以得到不同L下的K1。在表17中,当L=4、6或7时,K1为2,其中,PDSCH的时域位置根据S确定;当L=2时,K1结合L和S来确定,具体即,当L=2,S属于[0,6]时,K1为4;当L=2,S属于[7,10]时,K1为2。这样,可以使PDSCH不占满整个slot,slot尾部的符号可以用作快速反馈、避开上行符号、或者给其他终端设备使用。
本申请还提供了一种确定资源分配的方法,能够根据某些参数的个数(比如,传输配置指示(transmission configuration indication,TCI)状态的个数或DMRS端口数量)确定第一传输次数,具体包括:
在一种实施例中,终端设备基于传输配置指示TCI状态的个数,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;
所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;
所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
可选地,所述第一预设关系是指某些参数的数量与第一传输次数的对应关系。终端设备可以根据第一预设关系,直接根据某些参数的取值确定第一传输次数。
可选地,所述某些参数可以指TCI状态、DMRS端口或者其他参数,对此不作具体限定。
终端设备可以根据TCI状态的个数,确定第一传输次数。示例性的,在终端设备确定当前的传输模式为第一时域单元内的重复传输的情况下,如果终端设备在一个传输过程中接收到N个TCI状态,则第一传输次数为N,即每个TCI状态关联一次重复次数。例如,如果传输过程中存在2个TCI状态,则第一传输次数为2。或者,终端设备在一个传输过程中接收到N个TCI状态,第一传输次数可以是M*N,其中,M是正整数,即每个TCI状态关联M次重复次数;其中,“*”表示作乘。例如,M=2,如果传输过程中存在2个TCI状态,则第一传输次数为4。这里,引入M是为了体现重复传输。M可以结合多种因素确定,比如,传输时延需求,可用传输资源等。
或者,终端设备在一个传输过程中接收到N个TCI状态,第一传输次数可以是M*N,其中M是正整数,并且M可以根据时域资源的持续长度存在不同取值。例如,在N=2的情况下(即2个TRP),当L=4、6或7时,M=1;当L=2时,M>1,比如,M可以取2或3。也就是说,在N=2的情况下(即2个TRP),当L=4、6或7时,每个TCI状态关联1次重复次数,即第一传输次数为2;当L=2时,每个TCI状态关联2或3次重复次数,即第一传输次数为4或6。
类似的,终端设备可以根据DMRS端口的数据,确定第一传输次数。示例性的,在终端设备确定当前的传输模式为第一时域单元内的重复传输的情况下,如果终端设备使用的DMRS端口的数量为1个,即网络设备均进行单层传输,则第一传输次数为4,即增加传输次数以增强可靠性;如果终端设备使用的DMRS端口的数量多于1个,即网络设备均进行多层传输,则第一传输次数为2。
本申请还提供了一种确定资源分配的方法,终端设备通过获取网络设备发送的RRC信令,获知利用哪些时域单元来确定第一传输次数。比如,网络设备通过RRC信令指示终端设备使用几个符号作为边界确定第一传输次数。该实施例提供的方法包括:
终端设备接收来自网络设备的无线资源控制RRC信令,所述RRC信令用于向所述终端设备通知第一时域单元;
所述终端设备根据第一预设关系以及时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在所述第一时域单元中重复传输数据的次数;
所述终端设备根据所述第一传输次数,在所述第一时域单元中确定至少一个数据传输单元的时域位置;
所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
具体而言,终端设备根据网络设备发送的RRC信令,可以得知第一时域单元。然后,终端设备根据第一预设关系以及时域资源的持续长度,确定第一传输次数。第一传输次数是指在第一时域单元中重复传输数据的次数。终端设备根据第一传输次数,在第一时域单元中确定至少一个数据传输单元,并进行数据传输。
可选地,所述RRC信令包括以下信息中的一项或多项:第一时域单元占用的符号个数,所述第一时域单元的起始符号位置,所述第一时域单元的结束符号位置。这里,网络设备可以通过RRC信令向终端设备通知在哪些时域单元确定第一传输次数。
示例性地,网络设备可以通过RRC信令向终端设备通知第一时域单元的边界,或者,向终端设备通知第一时域单元占用的符号个数,或者,第一时域单元的起始符号,或者,第一时域单元占用哪些符号,或者,第一时域单元占用的符号的索引。
第一时域单元可以占用一个slot,也可以占用一个slot中的部分符号。可选地,第一时域单元占用的符号可以是连续的,也可以是离散的,对此不作限定。
示例性的,网络设备可以通过RRC信令告知终端设备只能使用一个slot的前半部分,或者一个slot内的部分符号进行多站时域重复传输。也就是说,该slot的前半部分可以用于重复数据传输,后半部分可以用作反馈。
可选地,所述RRC信令也可以通过使能功能指示第一时域单元。以一个slot包括14个符号为例,RRC信令包括两种类型的功能,type1和type2,type1指示整个slot,type2指示该slot的部分符号(比如,前半部分符号)。具体比如,若网络设备通过RRC信令使能type1,则终端设备通过RRC信令得知第一时域单元为14个符号;若网络设备通过RRC信令使能type2,则终端设备通过RRC信令得知第一时域单元为该slot中的前7个符号。例如,假设1个slot占用14个符号,那么可以定义第一时域单元为该slot中的前7个符号。终端设备可以在该slot中的前7个符号进行PDSCH重复传输,即终端设备采用7个符号计算第一传输次数,具体计算第一传输次数的方式可以参考前文描述,为了简洁,这里不再赘述。应理解,这里是以第一时域单元占用7个符号为例进行说明,并不对本申请实施例的保护范围构成限定,事实上,第一时域单元也可以是其他更短的符号。
这里,对于一个slot中除去第一时域单元以外的符号或时域单元,可以空余出来,预留作为他用,比如,在一个slot的14个符号中,网络设备可以预留该slot中的后半部分符号进行快速反馈,或者,预留给其他终端设备进行传输,对此不作限定。
举例来说,网络设备向终端设备发送的RRC信令中包括第一符号数。终端设备基于 该第一符号数可以获知用于计算或确定第一传输次数的时域单元的边界,即第一时域单元的边界。终端设备以第一符号数为边界,使用上述实施例中的方法确定第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置,进行数据传输。
为了便于描述,这里以第一传输次数为K1进行描述。示例性的,对于终端设备来说,如果未接收到网络设备发送的该RRC信令(包括第一符号数),则终端设备按照前文实施例中以一个slot包括14个符号设计的第一预设关系,时域资源的起始位置以及时域资源的持续长度确定第一传输次数,例如,S=0,L=2如果PDSCH之间偏移量为0,则根据以一个slot包括14个符号设计的第一预设关系(查表或通过公式计算)能得到K1=6;但是,若终端设备收到了包括第一符号数的RRC信令,假设第一符号数为7个符号,则终端设备使用以符号数为7设计的第一预设关系进行K1的计算,得到的新传输次数为K2,在S=0,L=2的情况下可以得到K1=2。此时,终端设备可以选择K1=2作为实际重复传输次数,确定出时域单元中的两个数据传输单元的时域位置。
举例来说,以第一时域单元是符号数为7设计的第一预设关系如下表18所示:
表18
K1 | S=0 | S=1 | S=2 | S=3 | S=4 | S=5 | S=6 |
L=2 | 2 | 2 | 2 | 2 | x | x | x |
L=4 | x | x | x | x | x | x | x |
L=7 | x | x | x | x | x | x | x |
在上述表18中,当L=2时,若S=0,或1,或2,或3,则K1=2。而对于L=4或7,K1的取值为x。x也可以一个默认的数字,该数字表示无法进行slot内的重复传输,或者是用符号“-”替换,或者,也可以是其他不表示数字的符号替换,对此不作具体限定。
在本申请实施例中,网络设备通过RRC信令为终端设备配置第一时域单元,可以减少某个终端设备的PDSCH传输所占用的时域资源,实现时域单元内的快速反馈以及多用户调度,有助于提高系统可靠性。
本申请还提供了一种确定资源分配的方法,网络设备可以通过RRC信令向终端设备告知第一传输次数。具体包括:
网络设备向终端设备发送RRC信令,所述RRC信令用于指示第一传输次数。对应的,终端设备接收来自网络设备的RRC信令。
终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
这里,终端设备通过接收网络设备发送的RRC信令,可以得到第一传输次数。
具体地,网络设备对现有PDSCH的时域资源分配配置(time domain resource allocation configuration)与第一传输次数的联合指示,并通过所述RRC信令将该联合指示告知给终端设备,以使得终端设备基于该RRC信令获取第一传输次数。因此,网络设备通过对RRC信令进行增强,以实现PDSCH TD-RA与第一传输次数的联合指示,不需要增加DCI开销。并且,由于网络设备会进行时域资源与上下行符号的预先配置,故可以很好地解决时域重复传输过程中上下行符号冲突的情况。
在Rel-15的现有技术中,网络设备在配置PDSCH的时域资源分配配置(time domain resource allocation configuration)时有两种方法:方法1.使用默认的时域资源分配表格;方法2.配置与PDSCH时域资源分配相关的RRC信元(information element),例如pdsch-TimeDomainAllocationList,通过该RRC信元中的元素组成时域资源分配表格。
对于方法2,该RRC IE pdsch-TimeDomainAllocationList的结构如下:
这里,RRC IE pdsch-TimeDomainAllocationList结构中包括的参数可以参考现有协议中的描述,为了简洁,这里不作赘述。其中,RRC参数startSymbolAndLength为SLIV,默认指示一个PDSCH的S与L。因此,网络设备通过对上述RRC信令的增强,可以使时域资源分配(time Domain resource allocation,TDRA)与第一传输次数进行联合指示。
网络设备通过RRC信令,对TDRA与第一传输次数进行联合指示具体包括以下多种实现方式:
方式1
网络设备在RRC信令中增加用于配置重复次数的RRC参数,比如,repetitionTimes,用以表示第一传输次数。其中,RRC信令还包括startSymbolAndLength。startSymbolAndLength用以表示第一段重复传输的PDSCH。网络设备通过联合配置startSymbolAndLength和repetitionTimes两个参数,以使得为终端设备分配的重复传输的资源不超过slot边界。
举例来说,在方式1下,RRC IE pdsch-TimeDomainAllocationList的结构如下:
方式2
网络设备在RRC信令中增加用于配置重复传输之间的偏移的RRC参数,例如,offsetBetweenRepetition,用以配置多个repetition之间的偏移量。并且,网络设备可以使用该RRC参数指示是否进行重复传输。举例来说,若RRC信令中不包括offsetBetweenRepetition,则表明不进行时域重复传输,可以进行单站传输或其他模式的重复传输;若RRC信令中配置了offsetBetweenRepetition,比如,0符号或1符号等,则表明第一传输次数可以固定,比如,第一传输次数为2,或者,可以在RRC信令中进一步增加方式1中的参数(比如,repetitionTimes),用以指示第一传输次数。类似地,网络设备也可以进一步配置startSymbolAndLength,结合offsetBetweenRepetition,以使得为终端设备分配的重复传输的资源不超过slot边界。
举例来说,在方式2下,RRC IE pdsch-TimeDomainAllocationList的结构如下:
方式3
网络设备在RRC信令中增加配置重复传输的起始符号位置和持续长度的RRC参数,比如,startSymbolAnd LengthAndRepetition,用以表示S、L、Repetition联合编码结果。该RRC参数对应的偏移量(offset)是固定的,比如,偏移量为0或者1个符号。
其中,S、L、Repetition的联合编码方式有多种,对此不作限定。以Repetition是K1,L的取值满足0<L≤14-S为例,S、L、K1可以满足下式:
若L-1≤7,SLIV_R=[14*(L-1)+S]*K1;
否则,SLIV_R=[14*(14-L+1)+(14-1-S)]*K1,其中,L-1大于7。
startSymbolAndLengthAndRepetition即为SLIV_R表示的取值。一个SLIV_R取值代表一个S、L、K1的组合。但是此时由于增加了编码元素导致SLIV_R的最大取值可能不是127,根据联合编码的方式,SLIV_R的最大取值需要扩充至255或511。本申请实施例对编码方式与SLIV_R可能的取值不做限制。
举例来说,在方式3下,RRC IE pdsch-TimeDomainAllocationList的结构如下:
方式4
网络设备在RRC信令中增加另一配置重复传输的起始符号位置和持续长度的RRC参数,比如,SecondstartSymbolAndLength,用以指示第二个SLIV的值。在这种情况下,网络设备在配置第二个SLIV的值时,需要确保第二个SLIV的起始符号在第一个SLIV的结束符号之后,即两个SLIV不能存在符号上的交叠;除此之外,网络设备在配置第二个SLIV的值时,也可以根据时域单元内的上下行符号位置的配置方式,预先避开上行符号位置,对第一个SLIV和第二个SLIV进行配置,从而解决时域重复传输过程中上下行符号冲突的情况。
举例来说,在方式4下,RRC IE pdsch-TimeDomainAllocationList的结构如下:
方式5
网络设备在RRC信令中配置起始符号位置和持续长度的列表的RRC参数,比如,ListofstartSymbolAndLength,用以表示多个SLIV的序列。网络设备可以任意配置多个SLIV的值用以表示多次重复传输的时域资源位置。采用此方式时,多个SLIV的配置限制可以与方式4中的SLIV配置方式类似。这里,使用多个SLIV配置的有益效果与方式4类似,为了简洁,故在此不再赘述。
举例来说,在方式5下,RRC IE pdsch-TimeDomainAllocationList的结构如下:
需要说明的是,对于上面列举的RRC IE pdsch-TimeDomainAllocationList的结构,其中包括的部分参数可以参考现有协议中的描述,为了简洁,这里不作赘述。
对于终端设备而言,终端设备在接收到上述任一方式的RRC信令后,可以通过RRC信令得到第一传输次数。
可以理解,该实施例可以单独实施,也可以与前文实施例组合实施,对此不作限定。比如,前文实施例中出现的“网络设备通过RRC信令为终端设备配置第一传输次数”的地方,都可以采用该实施例中的RRC信令的具体实现方式。
另一种实现方式中,网络设备向终端设备发送信令,向终端设备指示多个预设第一传输次数中的一个生效,例如预设的第一传输次数为K1=2或者K1=4,网络设备可以向终端设备下发信令,使能K1=2生效;终端设备接收到该信令,确定重复传输次数为2,反之确定重复传输次数为4;网络设备也可以向终端设备下发信令,使能K1=4生效,终端设备接收到该信令,确定重复传输次数为4,反之,确定重复传输次数为2。
该信令可以是RRC信令,或者MAC-CE信令,或者DCI信令。
还应理解,本申请实施例的各个方案可以进行合理的组合使用,并且实施例中出现的各个术语的解释或说明可以在各个实施例中互相参考或解释,对此不作限定。
还应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定。上述各个过程涉及的各种数字编号或序号仅为描述方便进行的区分,而不应对本申请实施例的实施过程构成任何限定。
上文结合图1至图10详细描述了根据本申请实施例的确定资源分配的方法。下面将结合图11至图13描述根据本申请实施例的确定资源分配的装置。应理解,方法实施例所描述的技术特征同样适用于以下装置实施例。
图11是本申请实施例提供的通信装置的示意性框图。如图11所示,该通信装置1000可以包括处理单元1100和收发单元1200。
在一种可能的设计中,该通信装置1000可对应于上文方法实施例中的终端设备,例如,可以为终端设备,或者配置于终端设备中的芯片。
具体地,该通信装置1000可对应于根据本申请实施例的方法400中的终端设备,该通信装置1000可以包括用于执行图4中方法400中的终端设备执行的方法的单元。并且,该通信装置1000中的各单元和上述其他操作或功能分别为了实现图4中方法400中的终端设备相应流程。
在一种实现方式中,处理单元1100和收发单元1200可分别用于:
处理单元1100,用于根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述处理单元1100还用于,根据所述第一传输次数,在第一时域单元中确定至少一个数据 传输单元的时域位置。
收发单元1200,用于在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
在一种可能的实现方式中,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持续长度与所述第一传输次数的对应关系;所述处理单元1100用于根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,具体包括:基于所述时域资源的起始位置以及所述时域资源的持续长度,在所述第一预设关系中查找对应的所述第一传输次数。
在一种可能的实现方式中,所述处理单元1100用于根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,具体包括:
采用以下公式,计算所述第一传输次数:
K1=[(14-S-L)/(L+O1)]+1
其中,K1是所述第一传输次数,S表示所述时域资源的起始位置,L表示所述时域资源的持续长度,O1表示一个时域单元内,每个数据传输单元之间的符号间隔。
在一种可能的实现方式中,所述收发单元1200还用于,接收来自网络设备的无线资源控制RRC信令,所述RRC信令包括第二传输次数,所述第二传输次数是所述网络设备指示的在时域单元中重复传输数据的次数;其中,所述处理单元1100用于根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置,具体包括:在所述第二传输次数和所述第一传输次数中选择最小的传输次数;根据所述最小的传输次数,在所述第一时域单元中确定至少一个数据传输单元的时域位置。
在一种可能的实现方式中,所述收发单元1200还用于,接收来自网络设备的下行控制信息DCI,所述DCI用于指示时域资源的起始和长度值;所述处理单元1100还用于,根据所述起始和长度值,确定所述时域资源的起始位置和所述时域资源的持续长度。
可选地,所述第一时域单元为时隙;相应的,一个所述数据传输单元为:传输一个物理下行共享信道所占用的时域资源。
或者,处理单元1100和收发单元1200可分别用于:
收发单元1200,用于获取第一时域偏移;所述第一时域偏移为第二时域单元中首个数据传输单元对应的第一时域资源的起始位置相对于第二时域资源的起始位置的偏移量,其中,所述第二时域资源的起始位置位于所述第二时域单元中,且与所述终端设备使用的第一时域单元中首个数据传输单元对应的时域资源的起始位置相同,其中,所述第一时域单元是重复传输数据的时域单元中的第一个时域单元,所述第二时域单元是所述重复传输数据的时域单元中除所述第一时域单元外的任一时域单元。
处理单元1100,用于根据所述第一时域偏移,在所述第二时域单元中确定首个数据传输单元的时域位置。
在一种可能的实现方式中,所述收发单元1200还用于,获取第一传输次数,所述第一传输次数是指在一个时域单元中重复传输数据的次数。
在一种可能的实现方式中,所述处理单元1100还用于,根据所述第一时域偏移,所述第一传输次数,以及第二时域偏移,在所述第二时域单元中确定至少一个数据传输单元的时域位置;所述第二时域偏移表示所述第二时域单元中的每个数据传输单元之间的符号 间隔。
在一种可能的实现方式中,所述收发单元1200用于获取第一传输次数,包括:接收来自网络设备的第一信令,所述第一信令包括所述第一传输次数,所述第一信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
在一种可能的实现方式中,所述收发单元1200用于获取第一时域偏移,包括:接收来自网络设备的第二信令,所述第二信令包括所述第一时域偏移,所述第二信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
在一种可能的实现方式中,所述收发单元1200还用于,获取第三传输次数,所述第三传输次数与所述重复传输数据的时域单元的个数相同;
所述处理单元1100还用于,根据所述第三传输次数,在与第三传输次数相同个数的时域单元上进行数据传输。
在一种可能的实现方式中,所述收发单元1200还用于,接收来自网络设备的第三信令,所述第三信令包括所述第二时域偏移,所述第三信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1000为终端设备时,该通信装置1000中的收发单元1200可对应于图12中示出的终端设备2000中的收发器2020,该通信装置1000中的处理单元1100可对应于图12中示出的终端设备2000中的处理器2010。
还应理解,该通信装置1000为配置于终端设备中的芯片时,该通信装置1000中的收发单元1200可以为输入/输出接口。
在另一种可能的设计中,该通信装置1000可对应于上文方法实施例中的网络设备,例如,可以为网络设备,或者配置于网络设备中的芯片。
具体地,该通信装置1000可对应于根据本申请实施例的方法400中的网络设备,该通信装置1000可以包括用于执行图4中的方法400中的网络设备执行的方法的单元。
还应理解,该通信装置1000为网络设备时,该通信装置1000中的通信单元为可对应于图13中示出的网络设备3000中的收发器3200,该通信装置1000中的处理单元1100可对应于图13中示出的网络设备3000中的处理器3100。
还应理解,该通信装置1000为配置于网络设备中的芯片时,该通信装置1000中的收发单元1200可以为输入/输出接口。
在一种实现方式中,处理单元1100和收发单元1200可分别用于:
收发单元1200,用于向终端设备发送指示信息,所述指示信息指示终端设备根据第一预设关系确定第一传输次数,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持续长度与所述第一传输次数的对应关系。
处理单元1100,用于确定第一传输次数,并根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置。
所述收发单元1200,还用于在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
可选地,所述收发单元1200,还用于向终端设备发送无线资源控制RRC信令,所述 RRC信令包括第二传输次数,所述第二传输次数是向所述终端设备指示的在时域单元中重复传输数据的次数。
可选地,所述收发单元1200,还用于向终端设备发送下行控制信息DCI,所述DCI用于指示时域资源的起始和长度指示值,比如,SLIV域。
或者,处理单元1100和收发单元1200可分别用于:
收发单元1200,用于获取第一时域偏移;所述第一时域偏移为第二时域单元中首个数据传输单元对应的第一时域资源的起始位置相对于第二时域资源的起始位置的偏移量,其中,所述第二时域资源的起始位置位于所述第二时域单元中,且与所述终端设备使用的第一时域单元中首个数据传输单元对应的时域资源的起始位置相同,其中,所述第一时域单元是重复传输数据的时域单元中的第一个时域单元,所述第二时域单元是所述重复传输数据的时域单元中除所述第一时域单元外的任一时域单元。
处理单元1100,用于根据所述第一时域偏移,在所述第二时域单元中确定首个数据传输单元的时域位置。
在一种可能的实现方式中,所述收发单元1200,还用于向终端设备发送第一信令,所述第一信令包括第一传输次数,所述第一传输次数是指在一个时域单元中重复传输数据的次数,所述第一信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
在一种可能的实现方式中,所述收发单元1200,还用于向终端设备发送第二信令,所述第二信令包括所述第一时域偏移,所述第二信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
在一种可能的实现方式中,所述收发单元1200,还用于向终端设备发送第三信令,所述第三信令包括第二时域偏移,所述第三信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
图12是本申请实施例提供的终端设备2000的结构示意图。该终端设备2000可应用于如图1或图2所示的系统中,执行上述方法实施例中终端设备的功能。如图所示,该终端设备2000包括处理器2010和收发器2020。可选地,该终端设备2000还包括存储器2030。其中,处理器2010、收发器2002和存储器2030之间可以通过内部连接通路互相通信,传递控制或数据信号,该存储器2030用于存储计算机程序,该处理器2010用于从该存储器2030中调用并运行该计算机程序,以控制该收发器2020收发信号。可选地,终端设备2000还可以包括天线2040,用于将收发器2020输出的上行数据或上行控制信令通过无线信号发送出去。
上述处理器2010可以和存储器2030可以合成一个处理装置,处理器2010用于执行存储器2030中存储的程序代码来实现上述功能。具体实现时,该存储器2030也可以集成在处理器2010中,或者独立于处理器2010。该处理器2010可以与图11中的处理单元对应。
上述收发器2020可以与图11中的通信单元对应,也可以称为收发单元。收发器2020可以包括接收器(或称接收机、接收电路)和发射器(或称发射机、发射电路)。其中,接收器用于接收信号,发射器用于发射信号。
应理解,图12所示的终端设备2000能够实现图4所示方法实施例中涉及终端设备的 各个过程。终端设备2000中的各个模块的操作或功能,分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述,为避免重复,此处适当省略详细描述。
上述处理器2010可以用于执行前面方法实施例中描述的由终端设备内部实现的动作,而收发器2020可以用于执行前面方法实施例中描述的终端设备向网络设备发送或从网络设备接收的动作。具体请见前面方法实施例中的描述,此处不再赘述。
可选地,上述终端设备2000还可以包括电源2050,用于给终端设备中的各种器件或电路提供电源。
除此之外,为了使得终端设备的功能更加完善,该终端设备2000还可以包括输入单元2060、显示单元2070、音频电路2080、摄像头2090和传感器2100等中的一个或多个,所述音频电路还可以包括扬声器2082、麦克风2084等。
图13是本申请实施例提供的网络设备的结构示意图,例如可以为基站的结构示意图。该基站3000可应用于如图1或图2所示的系统中,执行上述方法实施例中网络设备的功能。如图所示,该基站3000可以包括一个或多个射频单元,如远端射频单元(remote radio unit,RRU)3100和一个或多个基带单元(BBU)(也可称为分布式单元(DU))3200。所述RRU 3100可以称为收发单元,与图11中的通信单元1200对应。可选地,该收发单元3100还可以称为收发机、收发电路、或者收发器等等,其可以包括至少一个天线3101和射频单元3102。可选地,收发单元3100可以包括接收单元和发送单元,接收单元可以对应于接收器(或称接收机、接收电路),发送单元可以对应于发射器(或称发射机、发射电路)。所述RRU 3100部分主要用于射频信号的收发以及射频信号与基带信号的转换。所述BBU 3200部分主要用于进行基带处理,对基站进行控制等。所述RRU 3100与BBU 3200可以是物理上设置在一起,也可以物理上分离设置的,即分布式基站。
所述BBU 3200为基站的控制中心,也可以称为处理单元,可以与图11中的处理单元1100对应,主要用于完成基带处理功能,如信道编码,复用,调制,扩频等等。例如所述BBU(处理单元)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程,例如,生成CSI上报的配置信息等。
在一个示例中,所述BBU 3200可以由一个或多个单板构成,多个单板可以共同支持单一接入制式的无线接入网(如LTE网),也可以分别支持不同接入制式的无线接入网(如LTE网,5G网或其他网)。所述BBU 3200还包括存储器3201和处理器3202。所述存储器3201用以存储必要的指令和数据。所述处理器3202用于控制基站进行必要的动作,例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器3201和处理器3202可以服务于一个或多个单板。也就是说,可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
应理解,图13所示的基站3000能够实现前述方法实施例中涉及网络设备的各个过程。基站3000中的各个模块的操作或功能,分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述,为避免重复,此处适当省略详细描述。
上述BBU 3200可以用于执行前面方法实施例中描述的由网络设备内部实现的动作,而RRU 3100可以用于执行前面方法实施例中描述的网络设备向终端设备发送或从终端设备接收的动作。具体请见前面方法实施例中的描述,此处不再赘述。
根据本申请实施例提供的方法,本申请还提供一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码在计算机上运行时,使得该计算机执行图4或图7所示实施例中的方法。
根据本申请实施例提供的方法,本申请还提供一种计算机可读介质,该计算机可读介质存储有程序代码,当该程序代码在计算机上运行时,使得该计算机执行图4或图7所示实施例中的方法。
根据本申请实施例提供的方法,本申请还提供一种系统,其包括前述的一个或多个终端设备以及一个或多个网络设备。
本申请实施例还提供了一种处理装置,包括处理器和接口;所述处理器用于执行上述任一方法实施例中的通信的方法。
应理解,上述处理装置可以是一个芯片。例如,该处理装置可以是现场可编程门阵列(field programmable gate array,FPGA),可以是通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现成可编程门阵列(field programmable gate array,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,还可以是系统芯片(system on chip,SoC),还可以是中央处理器(central processor unit,CPU),还可以是网络处理器(network processor,NP),还可以是数字信号处理电路(digital signal processor,DSP),还可以是微控制器(micro controller unit,MCU),还可以是可编程控制器(programmable logic device,PLD)或其他集成芯片。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译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。
可以理解,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,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时,全部或部分地 产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disc,SSD))等。
上述各个装置实施例中网络设备与终端设备和方法实施例中的网络设备或终端设备完全对应,由相应的模块或单元执行相应的步骤,例如通信单元(收发器)执行方法实施例中接收或发送的步骤,除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中,处理器可以为一个或多个。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如,部件可以是但不限于,在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序或计算机。通过图示,在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程或执行线程中,部件可位于一个计算机上或分布在2个或更多个计算机之间。此外,这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统或网络间的另一部件交互的二个部件的数据,例如通过信号与其它系统交互的互联网)的信号通过本地或远程进程来通信。
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。
应理解,在本申请实施例中,编号“第一”、“第二”…仅仅为了区分不同的对象,比如为了区分不同的时域单元,并不对本申请实施例的范围构成限制,本申请实施例并不限于此。
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。
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这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
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。
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,本申请的技术方案本质上或者说对现有技术做出贡献的部分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、只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等各种可以存储程序代码的介质。
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 (43)
- 一种确定资源分配的方法,其特征在于,包括:终端设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 根据权利要求1所述的方法,其特征在于,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持续长度与所述第一传输次数的对应关系;所述终端设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,包括:所述终端设备基于所述时域资源的起始位置以及所述时域资源的持续长度,在所述第一预设关系中查找对应的所述第一传输次数。
- 根据权利要求1所述的方法,其特征在于,所述终端设备根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,包括:所述终端设备采用以下公式,计算所述第一传输次数:K1=[(14-S-L)/(L+O1)]+1其中,K1是所述第一传输次数,S表示所述时域资源的起始位置,L表示所述时域资源的持续长度,O1表示一个时域单元内,每个数据传输单元之间的符号间隔。
- 根据权利要求1至3中任一项所述的方法,所述方法还包括:所述终端设备接收来自网络设备的无线资源控制RRC信令,所述RRC信令包括第二传输次数,所述第二传输次数是所述网络设备指示的在时域单元中重复传输数据的次数;其中,所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置,包括:所述终端设备在所述第二传输次数和所述第一传输次数中选择最小的传输次数;所述终端设备根据所述最小的传输次数,在所述第一时域单元中确定至少一个数据传输单元的时域位置。
- 根据权利要求1至4中任一项所述的方法,其特征在于,所述方法还包括:所述终端设备接收来自网络设备的下行控制信息DCI,所述DCI用于指示时域资源的起始和长度值;所述终端设备根据所述起始和长度值,确定所述时域资源的起始位置和所述时域资源的持续长度。
- 根据权利要求1至5中任一项所述的方法,其特征在于,所述第一时域单元为时隙;一个所述数据传输单元为:传输一个物理下行共享信道所占用的时域资源。
- 一种确定资源分配的方法,其特征在于,包括:网络设备向终端设备发送指示信息,所述指示信息指示终端设备根据第一预设关系确定第一传输次数,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持 续长度与所述第一传输次数的对应关系;所述网络设备确定所述第一传输次数,并根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述网络设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 根据权利要求7所述的方法,其特征在于,所述方法还包括:所述网络设备向所述终端设备发送无线资源控制RRC信令,所述RRC信令包括第二传输次数,所述第二传输次数是向所述终端设备指示的在时域单元中重复传输数据的次数。
- 一种确定资源分配的方法,其特征在于,包括:终端设备获取第一时域偏移;所述第一时域偏移为第二时域单元中首个数据传输单元对应的第一时域资源的起始位置相对于第二时域资源的起始位置的偏移量,其中,所述第二时域资源的起始位置位于所述第二时域单元中,且与所述终端设备使用的第一时域单元中首个数据传输单元对应的时域资源的起始位置相同,其中,所述第一时域单元是重复传输数据的时域单元中的第一个时域单元,所述第二时域单元是所述重复传输数据的时域单元中除所述第一时域单元外的任一时域单元;所述终端设备根据所述第一时域偏移,在所述第二时域单元中确定首个数据传输单元的时域位置。
- 根据权利要求9所述的方法,其特征在于,所述方法还包括:所述终端设备获取第一传输次数,所述第一传输次数是指在一个时域单元中重复传输数据的次数。
- 根据权利要求10所述的方法,其特征在于,所述方法还包括:所述终端设备根据所述第一时域偏移,所述第一传输次数,以及第二时域偏移,在所述第二时域单元中确定至少一个数据传输单元的时域位置;所述第二时域偏移表示所述第二时域单元中的每个数据传输单元之间的符号间隔。
- 根据权利要求10或11所述的方法,其特征在于,所述终端设备获取第一传输次数,包括:所述终端设备接收来自网络设备的第一信令,所述第一信令包括所述第一传输次数,所述第一信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
- 根据权利要求9至12中任一项所述的方法,其特征在于,所述终端设备获取第一时域偏移,包括:所述终端设备接收来自网络设备的第二信令,所述第二信令包括所述第一时域偏移,所述第二信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
- 根据权利要求9至13中任一项所述的方法,其特征在于,所述方法还包括:所述终端设备获取第三传输次数,所述第三传输次数与所述重复传输数据的时域单元的个数相同;所述终端设备根据所述第三传输次数,在与第三传输次数相同个数的时域单元上进行数据传输。
- 根据权利要求11至14中任一项所述的方法,其特征在于,所述方法还包括:所述终端设备接收来自网络设备的第三信令,所述第三信令包括所述第二时域偏移,所述第三信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
- 一种确定资源分配的方法,其特征在于,包括:网络设备获取第一时域偏移;所述第一时域偏移为第二时域单元中首个数据传输单元对应的第一时域资源的起始位置相对于第二时域资源的起始位置的偏移量,其中,所述第二时域资源的起始位置位于所述第二时域单元中,且与所述终端设备使用的第一时域单元中首个数据传输单元对应的时域资源的起始位置相同的时域资源的起始位置,其中,所述第一时域单元是重复传输数据的多个时域单元中的第一个时域单元,所述第二时域单元是所述重复传输数据的多个时域单元中除所述第一时域单元外的任一时域单元;所述网络设备根据所述第一时域偏移,在所述第二时域单元中确定首个数据传输单元的时域位置。
- 一种确定资源分配的装置,其特征在于,包括:处理单元,用于根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述处理单元还用于,根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;收发单元,用于在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 根据权利要求17所述的装置,其特征在于,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持续长度与所述第一传输次数的对应关系;所述处理单元用于根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,具体包括:基于所述时域资源的起始位置以及所述时域资源的持续长度,在所述第一预设关系中查找对应的所述第一传输次数。
- 根据权利要求17所述的装置,其特征在于,所述处理单元用于根据第一预设关系、时域资源的起始位置以及时域资源的持续长度,确定第一传输次数,具体包括:采用以下公式,计算所述第一传输次数:K1=[(14-S-L)/(L+O1)]+1其中,K1是所述第一传输次数,S表示所述时域资源的起始位置,L表示所述时域资源的持续长度,O1表示一个时域单元内,每个数据传输单元之间的符号间隔。
- 根据权利要求17至19中任一项所述的装置,所述收发单元还用于,接收来自网络设备的无线资源控制RRC信令,所述RRC信令包括第二传输次数,所述第二传输次数是所述网络设备指示的在时域单元中重复传输数据的次数;其中,所述处理单元用于根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置,具体包括:在所述第二传输次数和所述第一传输次数中选择最小的传输次数;根据所述最小的传输次数,在所述第一时域单元中确定至少一个数据传输单元的时域位置。
- 根据权利要求17至20中任一项所述的装置,其特征在于,所述收发单元还用于, 接收来自网络设备的下行控制信息DCI,所述DCI用于指示时域资源的起始和长度值;所述处理单元还用于,根据所述起始和长度值,确定所述时域资源的起始位置和所述时域资源的持续长度。
- 根据权利要求17至21中任一项所述的装置,其特征在于,所述第一时域单元为时隙;相应的,一个所述数据传输单元为:传输一个物理下行共享信道所占用的时域资源。
- 一种确定资源分配的装置,其特征在于,包括:收发单元,用于向终端设备发送指示信息,所述指示信息指示终端设备根据第一预设关系确定第一传输次数,所述第一预设关系是指:所述时域资源的起始位置、所述时域资源的持续长度与所述第一传输次数的对应关系;处理单元,用于,确定所述第一传输次数,并根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述收发单元还用于,在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 根据权利要求23所述的装置,其特征在于,所述收发单元还用于,向所述终端设备发送无线资源控制RRC信令,所述RRC信令包括第二传输次数,所述第二传输次数是向所述终端设备指示的在时域单元中重复传输数据的次数。
- 一种确定资源分配的装置,其特征在于,包括:收发单元,用于获取第一时域偏移;所述第一时域偏移为第二时域单元中首个数据传输单元对应的第一时域资源的起始位置相对于第二时域资源的起始位置的偏移量,其中,所述第二时域资源的起始位置位于所述第二时域单元中,且与所述终端设备使用的第一时域单元中首个数据传输单元对应的时域资源的起始位置相同,其中,所述第一时域单元是重复传输数据的时域单元中的第一个时域单元,所述第二时域单元是所述重复传输数据的时域单元中除所述第一时域单元外的任一时域单元;处理单元,用于根据所述第一时域偏移,在所述第二时域单元中确定首个数据传输单元的时域位置。
- 根据权利要求25所述的装置,其特征在于,所述收发单元还用于,获取第一传输次数,所述第一传输次数是指在一个时域单元中重复传输数据的次数。
- 根据权利要求26所述的装置,其特征在于,所述处理单元还用于,根据所述第一时域偏移,所述第一传输次数,以及第二时域偏移,在所述第二时域单元中确定至少一个数据传输单元的时域位置;所述第二时域偏移表示所述第二时域单元中的每个数据传输单元之间的符号间隔。
- 根据权利要求26或27所述的装置,其特征在于,所述收发单元用于获取第一传输次数,包括:接收来自网络设备的第一信令,所述第一信令包括所述第一传输次数,所述第一信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
- 根据权利要求25至28中任一项所述的装置,其特征在于,所述收发单元用于获取第一时域偏移,包括:接收来自网络设备的第二信令,所述第二信令包括所述第一时域偏移,所述第二信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
- 根据权利要求25至29中任一项所述的装置,其特征在于,所述收发单元还用于,获取第三传输次数,所述第三传输次数与所述重复传输数据的时域单元的个数相同;所述处理单元还用于,根据所述第三传输次数,在与第三传输次数相同个数的时域单元上进行数据传输。
- 根据权利要求27至30中任一项所述的装置,其特征在于,所述收发单元还用于,接收来自网络设备的第三信令,所述第三信令包括所述第二时域偏移,所述第三信令为以下中的任一项:下行控制信息DCI、无线资源控制RRC、媒体接入控制层控制元素MAC CE。
- 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程序指令,当其在处理器上运行时,执行如权利要求1至6中任一项所述的方法,或者,执行如权利要求8至14中任一项所述的方法。
- 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程序指令,当其在处理器上运行时,执行如权利要求7或8所述的方法,或者执行如权利要求16所述的方法。
- 一种确定资源分配的方法,其特征在于,包括:终端设备基于时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 根据权利要求34所述的方法,其特征在于,所述终端设备基于时域资源的持续长度,确定第一传输次数,包括:所述终端设备基于第一预设关系和所述时域资源的持续长度,确定所述第一传输次数,其中,所述第一预设关系是指:所述时域资源的持续长度与所述第一传输次数的对应关系。
- 一种确定资源分配的方法,其特征在于,包括:终端设备基于传输配置指示TCI状态的个数,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 根据权利要求36所述的方法,其特征在于,所述终端设备基于TCI状态的个数,确定第一传输次数,包括:所述终端设备基于第一预设关系确定所述第一传输次数,其中,所述第一预设关系是指:所述TCI状态的个数与所述第一传输次数的对应关系。
- 一种确定资源分配的方法,其特征在于,包括:终端设备基于解调参考信号DMRS端口的数量,确定第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元 的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 根据权利要求38所述的方法,其特征在于,所述终端设备基于DMRS端口的数量,确定第一传输次数,包括:所述终端设备基于第一预设关系确定所述第一传输次数,其中,所述第一预设关系是指:所述DMRS端口的数量与所述第一传输次数的对应关系。
- 一种确定资源分配的方法,其特征在于,包括:终端设备接收来自网络设备的无线资源控制RRC信令,所述RRC信令用于向所述终端设备通知第一时域单元;所述终端设备根据第一预设关系以及时域资源的持续长度,确定第一传输次数,所述第一传输次数是指在所述第一时域单元中重复传输数据的次数;所述终端设备根据所述第一传输次数,在所述第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 根据权利要求40所述的方法,其特征在于,所述RRC信令包括以下信息中的一项或多项:第一时域单元占用的符号个数,所述第一时域单元的起始符号位置,所述第一时域单元的结束符号位置。
- 一种确定资源分配的方法,其特征在于,包括:终端设备接收RRC信令,所述RRC信令用于指示第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数,所述第一传输次数与时域资源的持续长度相关联;所述终端设备根据所述第一传输次数,在第一时域单元中确定至少一个数据传输单元的时域位置;所述终端设备在所述第一时域单元中的至少一个数据传输单元上进行数据传输。
- 一种确定资源分配的方法,其特征在于,包括:网络设备确定无线资源控制RRC信令,所述RRC信令用于指示第一传输次数,所述第一传输次数是指在时域单元中重复传输数据的次数,所述第一传输次数与时域资源的持续长度相关联;所述网络设备向终端设备发送RRC信令。
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