WO2020221058A1 - 传输资源确定方法和装置 - Google Patents
传输资源确定方法和装置 Download PDFInfo
- Publication number
- WO2020221058A1 WO2020221058A1 PCT/CN2020/085798 CN2020085798W WO2020221058A1 WO 2020221058 A1 WO2020221058 A1 WO 2020221058A1 CN 2020085798 W CN2020085798 W CN 2020085798W WO 2020221058 A1 WO2020221058 A1 WO 2020221058A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resource set
- time slot
- symbols
- time slots
- indication information
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- 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
Definitions
- This application relates to communication technology, and in particular to a method and device for determining transmission resources.
- V2X Vehicle to everything
- V2X includes vehicle to infrastructure (V2I) business, vehicle to network (V2N) business, and vehicle to human (vehicle to pedestrian, V2P) business, vehicle to vehicle (V2V) business.
- V2X (hereinafter referred to as LTE-V2X) based on the long term evolution (long term evolution, LTE) network has two communication interfaces: Uu and PC5.
- the Uu interface is used for communication between terminal equipment and resource scheduling equipment
- the PC5 interface is used for In the sidelink (SL) communication between the terminal device and the terminal device, both of the above two communication interfaces can be used to transmit V2X data.
- the SL transmission resources used by the terminal equipment are indicated by the resource scheduling equipment, and the resource scheduling equipment indicates the SL transmission resources at the subframe level to the terminal equipment through signaling, that is, the resource scheduling equipment instructs the terminal equipment through signaling Which subframes are used for SL transmission.
- NR-V2X LTE-V2X resource indication method
- NR-V2X new radio
- the embodiments of the present application provide a method and device for determining transmission resources, so that the resource allocation of side links in an NR network is more flexible.
- the first aspect of this application provides a method for determining transmission resources, including:
- the first device determines a second resource set from the first resource set, and the second resource set does not include at least one of the following resources included in the first resource set: a downlink transmission unit and a side link synchronization signal transmission unit , The transmission unit occupied by the long-term evolution LTE side uplink, the flexible transmission unit, and the uplink transmission unit, where the transmission unit includes a time slot or a symbol;
- the first device determines a third resource set used for transmission on the first channel from the second resource set according to the first indication information.
- the method further includes:
- the first device sends or receives the first channel on the transmission resources included in the third resource set.
- the first device determining the second resource set from the first resource set includes:
- the first device determines the second resource set from the first resource set according to the subcarrier interval of the second resource set.
- the first resource set is indicated by signaling with a period of P1 and/or a period of P2, wherein the P1 and/or P2 can be divisible by 20, or the P2 is configured to be 3 milliseconds or 4 milliseconds .
- the second resource set includes reserved time slots, and the third resource set does not include the reserved time slots.
- the reserved time slots are distributed in the second resource set in any one of the following ways:
- the reserved time slots are continuously distributed in Nr time slots at the end of the second resource set, where Nr is the number of reserved time slots;
- the reserved time slots are continuously distributed in Nr time slots at the head of the second resource set;
- the reserved time slots are distributed at equal intervals in the Nr time slots in the second resource set.
- the first indication information is bitmap indication information with a length of L, each bit in the bitmap indication information has a value of 0 or 1, and the first device uses the first indication information From the second resource set, determining a third resource set for transmission on the first channel includes:
- the first device determines the third resource set from the second resource set according to the first indication information and the reserved time slot.
- the first device determining the reserved time slot from the second resource set according to the L includes:
- the first device determines the number of reserved time slots Nr included in the second resource set by using the following formula:
- L is the length of the bitmap indication information
- M is the number of time slots included in the second resource set
- the first device determines the serial number of the reserved time slot according to the number Nr of the reserved time slot.
- the first device determining the number of the reserved time slot according to the number of reserved time slots Nr includes:
- the first device determines the number r of the reserved time slot according to the following formula:
- Nr is the number of reserved time slots
- L is the length of the bitmap indication information
- floor() represents rounding down
- M is the number of time slots included in the second resource set.
- the first device determining the number of the reserved time slot according to the number of reserved time slots Nr includes:
- the first device determines the number r of the reserved time slot according to the following formula:
- Nr is the number of reserved time slots
- L is the length of the bitmap indication information
- floor() represents rounding down
- M is the number of time slots included in the second resource set.
- the second resource set does not include a time slot in which the number of uplink symbols, the number of flexible symbols, or the number of side row symbols is less than the first preset value.
- the second resource set includes timeslots in which the number of uplink symbols, the number of flexible symbols, or the number of side-line symbols is less than a first preset value, and the third resource set does not include the number of uplink symbols and the number of flexible symbols Count or the number of side-line symbols to the first preset value time slot.
- the first indication information is bitmap indication information with a length of L, and each bit in the bitmap indication information has a value of 0 or 1.
- the determining, by the first device from the second resource set according to the first indication information, a third resource set for transmission on the first channel includes:
- the first device determines from the second resource set that a time slot corresponding to a bit value of 1 is a transmission resource in the third resource set.
- the first device determining from the second resource set that the time slot corresponding to the bit value of 1 is the transmission resource in the third resource set according to the bitmap indication information includes:
- the time slot corresponding to the value 1 is the first transmission resource in the third resource set;
- bitmap indication information it is determined from the remaining second part of resources after being divisible by L in the second resource set that the time slot corresponding to the bit value of 1 is the second transmission resource in the third resource set.
- the L is an integer multiple of 2 and/or 3 and/or 4 and/or 5.
- the method further includes:
- the first device determining the second resource set from the first resource set includes:
- the first device determines the second resource set from the first resource set according to the second indication information, and the second resource set does not include: the downlink transmission unit, and the side link synchronization A transmission unit, a transmission unit occupied by the LTE side link, the flexible transmission unit and the uplink transmission unit.
- the method further includes:
- third indication information Acquiring, by the first device, third indication information, where the third indication information is used to instruct to configure all or part of the flexible symbols in the first resource set as uplink symbols and/or side symbols;
- the first device configures all or part of the flexible symbols in the first resource set as uplink symbols and/or side symbols according to the third indication information.
- the first channel includes at least one of the following channels: a side row data channel, a side row control channel, and a side row feedback channel.
- the resources of the side row feedback channel are configured in the first resource set, the second resource set, or the third resource set in a period of N, where N is a positive integer.
- the value of the resource period N of the side row feedback channel is associated with a resource pool, and the resource pool belongs to any one of the first resource set, the second resource set, or the third resource set, so
- the resource pool includes time-frequency resources.
- resource pools associated with different values of N are different; and/or resource pools associated with different values of N partially overlap.
- the resource pool associated with a smaller value of N includes a resource pool associated with a larger value of N; or, the resource pool associated with a larger value of N includes a resource pool associated with a smaller value of N.
- the downlink time slots not included in the second resource set include:
- the side link synchronization time slot not included in the second resource set includes:
- the time slot occupied by the synchronization signal of the LTE side link and/or,
- Time slot occupied by NR side uplink synchronization signal is Time slot occupied by NR side uplink synchronization signal.
- the second resource set and the LTE side link are located on the same carrier, and the second resource set does not include the LTE side link occupied Time slot; or,
- the second resource set is located on the first carrier, the LTE side link is located on the second carrier, the first carrier and the second carrier are located in the same frequency band, and the second resource set does not include the LTE The time slot occupied by the side link on the second carrier.
- the downlink time slot includes the LTE cellular link Occupied downlink time slot;
- the downlink time slot includes a downlink time slot occupied by the NR cellular link.
- the time slots used for the first channel transmission in the third resource set include the first type time slots and/or the second type time slots, and the first type time slots are used for all symbols in the time slot.
- the second type of time slots are time slots where part of symbols in the time slots are used for side-line transmission.
- the time slots in the third resource set include uplink time slots and/or flexible time slots, wherein the uplink time slots in the third resource set are a subset of the uplink time slots in the first resource set ,
- the flexible time slot in the third resource set is a subset of the flexible time slot in the first resource set.
- the second type of time slot is any one of the following time slots:
- a time slot including downlink symbols and at least one of the following symbols: flexible symbols, uplink symbols or sideline symbols;
- Time slots including uplink symbols and at least one of the following symbols: flexible symbols or side-line symbols;
- a downlink time slot is a time slot where all symbols in the time slot are used for downlink transmission
- an uplink time slot is a time slot where all symbols in the time slot are used for uplink transmission
- a flexible time slot is a time slot where all symbols in the time slot are used for uplink transmission. Time slot for flexible transmission.
- a second aspect of the present application provides a first device, including:
- the first determining module is configured to determine a second resource set from a first resource set, the second resource set does not include at least one of the following resources included in the first resource set: downlink transmission unit, side link A synchronization signal transmission unit, a transmission unit occupied by a long-term evolution LTE side link, a flexible transmission unit, an uplink transmission unit, the transmission unit including a time slot or a symbol;
- the second determining module is configured to determine a third resource set used for transmission on the first channel from the second resource set according to the first indication information.
- Optional also includes:
- the transceiver module is configured to send or receive the first channel on the transmission resources included in the third resource set.
- the first determining module is specifically configured to:
- the second resource set is determined from the first resource set according to the subcarrier interval of the second resource set.
- the first resource set is indicated by signaling with a period of P1 and/or a period of P2, wherein the P1 and/or P2 can be divisible by 20, or the P2 is configured to be 3 milliseconds or 4 milliseconds .
- the second resource set includes reserved time slots, and the third resource set does not include the reserved time slots.
- the reserved time slots are distributed in the second resource set in any one of the following ways:
- the reserved time slots are continuously distributed in Nr time slots at the end of the second resource set, where Nr is the number of reserved time slots;
- the reserved time slots are continuously distributed in Nr time slots at the head of the second resource set;
- the reserved time slots are distributed at equal intervals in the Nr time slots in the second resource set.
- the first indication information is bitmap indication information of length L, each bit in the bitmap indication information has a value of 0 or 1, and the second determining module is specifically configured to:
- the determining the reserved time slot from the second resource set according to the L is specifically:
- the number Nr of reserved time slots included in the second resource set is determined by the following formula:
- L is the length of the bitmap indication information
- M is the number of time slots included in the second resource set
- the determining the number of the reserved time slot according to the number of reserved time slots Nr is specifically as follows:
- Nr is the number of reserved time slots
- L is the length of the bitmap indication information
- floor() represents rounding down
- M is the number of time slots included in the second resource set.
- the determining the number of the reserved time slot according to the number of reserved time slots Nr is specifically as follows:
- Nr is the number of reserved time slots
- L is the length of the bitmap indication information
- floor() represents rounding down
- M is the number of time slots included in the second resource set.
- the second resource set does not include a time slot in which the number of uplink symbols, the number of flexible symbols, or the number of side row symbols is less than the first preset value.
- the second resource set includes timeslots in which the number of uplink symbols, the number of flexible symbols, or the number of side-line symbols is less than a first preset value, and the third resource set does not include the number of uplink symbols and the number of flexible symbols Count or the number of side-line symbols to the first preset value time slot.
- the first indication information is bitmap indication information with length L, and each bit in the bitmap indication information has a value of 0 or 1.
- the second determining module is specifically configured to:
- bitmap indication information it is determined from the second resource set that the time slot corresponding to the bit value of 1 is the transmission resource in the third resource set.
- the time slot corresponding to a bit value of 1 determined from the second resource set according to the bitmap indication information is a transmission resource in the third resource set, specifically:
- the time slot corresponding to the value 1 is the first transmission resource in the third resource set;
- bitmap indication information it is determined from the remaining second part of resources after being divisible by L in the second resource set that the time slot corresponding to the bit value of 1 is the second transmission resource in the third resource set.
- the L is an integer multiple of 2 and/or 3 and/or 4 and/or 5.
- Optional also includes:
- a first obtaining module configured to obtain second indication information before the first determining module determines a second resource set, where the second indication information is used to indicate sideline transmission resources in the first resource set;
- the first determining module is specifically configured to:
- the second resource set is determined from the first resource set, and the second resource set does not include: the downlink transmission unit, the side link synchronization transmission unit, and the The transmission unit occupied by the LTE side link, the flexible transmission unit and the uplink transmission unit.
- Optional also includes:
- the second acquiring module is configured to acquire third indication information before the first determining module determines the second resource set, where the third indication information is used to instruct to configure all or part of the flexible symbols in the first resource set Is the up symbol and/or the side symbol;
- the modification module is configured to configure all or part of the flexible symbols in the first resource set as uplink symbols and/or side-line symbols according to the third indication information.
- the first channel includes at least one of the following channels: a side row data channel, a side row control channel, and a side row feedback channel.
- the resources of the side row feedback channel are configured in the first resource set, the second resource set, or the third resource set in a period of N, where N is a positive integer.
- the value of the resource period N of the side row feedback channel is associated with a resource pool, and the resource pool belongs to any one of the first resource set, the second resource set, or the third resource set, so
- the resource pool includes time-frequency resources.
- the resource pools associated with different values of N are different; and/or the resource pools associated with different values of N partially overlap.
- the resource pool associated with a smaller value of N includes a resource pool associated with a larger value of N; or, the resource pool associated with a larger value of N includes a resource pool associated with a smaller value of N.
- the downlink time slots not included in the second resource set include:
- the side link synchronization time slot not included in the second resource set includes:
- the time slot occupied by the synchronization signal of the LTE side link and/or,
- Time slot occupied by NR side uplink synchronization signal is Time slot occupied by NR side uplink synchronization signal.
- the second resource set and the LTE side link are located on the same carrier, and the second resource set does not include the LTE side link occupied Time slot; or,
- the second resource set is located on the first carrier, the LTE side link is located on the second carrier, the first carrier and the second carrier are located in the same frequency band, and the second resource set does not include the LTE The time slot occupied by the side link on the second carrier.
- the downlink time slot includes the LTE cellular link Occupied downlink time slot;
- the downlink time slot includes a downlink time slot occupied by the NR cellular link.
- the time slots used for the first channel transmission in the third resource set include the first type time slots and/or the second type time slots, and the first type time slots are used for all symbols in the time slot.
- the second type of time slots are time slots where part of symbols in the time slots are used for side-line transmission.
- the time slots in the third resource set include uplink time slots and/or flexible time slots, wherein the uplink time slots in the third resource set are a subset of the uplink time slots in the first resource set ,
- the flexible time slot in the third resource set is a subset of the flexible time slot in the first resource set.
- the second type of time slot is any one of the following time slots:
- a time slot including downlink symbols and at least one of the following symbols: flexible symbols, uplink symbols or sideline symbols;
- Time slots including uplink symbols and at least one of the following symbols: flexible symbols or side-line symbols;
- a downlink time slot is a time slot where all symbols in the time slot are used for downlink transmission
- an uplink time slot is a time slot where all symbols in the time slot are used for uplink transmission
- a flexible time slot is a time slot where all symbols in the time slot are used for uplink transmission. Time slot for flexible transmission.
- a third aspect of the present application provides a first device, including a processor, a memory, and a transceiver.
- the memory is used to store instructions
- the transceiver is used to communicate with other devices
- the processor is used to execute storage in the memory.
- the fourth aspect of the present application provides a computer-readable storage medium, the computer-readable storage medium stores instructions, and when the instructions are executed, the computer executes the methods as provided in the first aspect and optional manners of the present application Any of the methods in.
- the fifth aspect of the present application provides a computer program product.
- the computer program product includes instructions. When the instructions are executed, the computer executes any one of the methods provided in the first aspect of the present application and optional methods. ⁇ method.
- a sixth aspect of the present application provides a system on a chip or a system chip, which can be applied to a first device, and the system on a chip or system chip includes: at least one communication interface, at least one processor, At least one memory, the communication interface, the memory, and the processor are interconnected through a bus, and the processor executes the instructions stored in the memory so that the first device can execute the first aspect of the application and the optional manner Any of the methods provided.
- the transmission resource determination method and apparatus includes a first device determining a second resource set from a first resource set, the second resource set does not include at least one of the following resources included in the first resource set : Downlink transmission unit, side link synchronization signal transmission unit, transmission unit occupied by LTE side link, flexible transmission unit, uplink transmission unit, the transmission unit includes a time slot or symbol, and the first device reads from In the second resource set, a third resource set used for transmission on the first channel is determined. Furthermore, the first channel is sent or received on the transmission resources included in the third resource set to complete the transmission of sideline data.
- This method can flexibly allocate time slot-level or symbol-level side link transmission resources for terminal equipment, so that the resource allocation of side links in the NR network is more flexible.
- Figure 1 is a schematic diagram of a V2X communication scenario
- FIG. 2 is a schematic structural diagram of a communication device provided by an embodiment of this application.
- FIG. 3 is a flowchart of a method for determining transmission resources provided by Embodiment 1 of the application;
- Figure 4 is a schematic diagram of a transformation from a first resource set to a second resource set
- FIG. 5 is a schematic diagram of indicating resources through bitmap indication information
- FIG. 6 is a schematic diagram of the distribution of time slots reserved in the second resource set
- FIG. 7 is another schematic diagram of the distribution of reserved time slots in the second resource set
- FIG. 8 is another schematic diagram of the distribution of time slots reserved in the second resource set
- FIG. 9 is a schematic structural diagram of a first device provided in Embodiment 2 of this application.
- a, b, or c can mean: a, b, c, a and b, a and c, b and c, or, a and b and c, where a, b and c c can be single or multiple.
- words such as “first” and “second” are used to distinguish the same items or similar items that have substantially the same function and effect. Those skilled in the art can understand that words such as “first” and “second” do not limit the number and execution order. For example, the "first" in the first device and the "second” in the second device in the embodiment of the present application are only used to distinguish different devices.
- the embodiment of the present application provides a method for determining transmission resources, which is applied in the V2X communication scenario shown in FIG. 1.
- the first device and the second device communicate via Sidelink (SL).
- the sidelink refers to the auxiliary link in the V2X network, except for the auxiliary link in the V2X network.
- V2X communication includes vehicle-to-vehicle communication (Vehicle-to-Vehicle, V2V), vehicle-to-infrastructure communication (Vehicle-to-Infrastructure, V2I), vehicle-to-people communication (Vehicle to People, V2P), And the communication between the vehicle and the application server (Vehicle-to-Network, V2N), etc.
- FIG. 1 only takes V2V communication in which both the first device and the second device are vehicles as an example for illustration, and the embodiment of the present application does not limit the specific communication scenario of V2X.
- the first device and the second device can communicate with each other between the vehicle-mounted equipment and the vehicle-mounted equipment, or between the road side unit (RSU) and the vehicle-mounted equipment and/or network equipment (such as base station equipment). Communication may also be communication between network equipment (such as base station equipment) and vehicle-mounted equipment and/or RSU.
- the network equipment may be LTE base station equipment or NR base station equipment or a base station in a subsequent evolution system.
- the wireless access network device in FIG. 1 may be a base station, or a device in a network that provides wireless access.
- the base station may be an evolved node (Long Term Evolution, eNB) in LTE or a base station in an NR network.
- eNB Long Term Evolution
- the base stations in NR may include: new air interface base station (NR nodeB, gNB), next-generation evolved base station (NG-eNB), central unit (CU) and distributed unit (DU) separated form gNB Etc.), a transmission receiving point (TRP), a transmission point (TP), an access point (AP) of a wireless fidelity (WIreless-Fidelity, WiFi) network, or other nodes.
- NR nodeB new air interface base station
- NG-eNB next-generation evolved base station
- CU central unit
- DU distributed unit separated form gNB Etc.
- TRP transmission receiving point
- TP transmission point
- AP access point
- WIreless-Fidelity, WiFi wireless fidelity
- the communication method provided in this application can be applied not only to the side link shown in FIG. 1 but also to the cellular link.
- the embodiments of this application do not limit the application scenarios of the communication method. This is only an exemplary illustration.
- the first device and the second device in the embodiments of the present application are communication devices, and the communication devices may be terminal devices or network devices.
- the first device is a network device
- the aforementioned side link may be a link between the base station and the base station.
- the link between the macro base station and the macro base station or the link between the macro base station and the small base station, or the link between the main base station and the secondary base station, or the link between the main base station and the main base station
- the link between the secondary base station and the secondary base station is not limited by the embodiment of the present application, for example, the link between the secondary base station and the secondary base station, etc.
- FIG. 2 is a communication device provided by an embodiment of this application.
- the communication device may be the first device or the second device in this application.
- the communication device may be a vehicle; it may also be an in-vehicle communication device or an in-vehicle terminal, or a chip in an in-vehicle communication device or an in-vehicle terminal installed on the vehicle for assisting the driving of the vehicle.
- the vehicle-mounted terminal may be a device used to implement wireless communication functions, such as a terminal or a chip that can be used in the terminal.
- the vehicle-mounted terminal can be mobile or fixed.
- the communication device may also be an on-board module, on-board module, on-board component, on-board chip, or on-board unit built into the vehicle as one or more components or units.
- the vehicle passes through the built-in on-board module, on-board module, on-board component, and The chip or the on-board unit executes the method of the embodiment of the present application.
- the communication device may also be a user equipment (User Equipment, UE), access terminal, terminal unit, terminal station, mobile station, mobile station in the 5G network or the public land mobile network (Public Land Mobile Network, PLMN) that will evolve in the future.
- UE User Equipment
- PLMN Public Land Mobile Network
- the access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), Handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control Wireless terminals in (industrial control), wireless terminals in self-driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid (smart grid), transportation safety (transportation safety) The wireless terminal in the smart city (smart city), the wireless terminal in the smart home (smart home), etc.
- SIP session initiation protocol
- WLL wireless local loop
- PDA personal digital assistant
- Handheld devices with wireless communication functions computing devices or other processing devices connected to wireless modems
- vehicle-mounted devices or wearable devices virtual reality (VR) terminal devices, augmented reality (AR) terminal devices
- the communication device 200 includes at least one processor 201, a memory 202, a transceiver 203, and a communication bus 204.
- the processor 201 is the control center of the communication device, and may be a processor or a collective name for multiple processing elements.
- the processor 201 is a central processing unit (CPU), or a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits configured to implement the embodiments of the present application
- CPU central processing unit
- ASIC Application Specific Integrated Circuit
- microprocessors digital signal processor, DSP
- field programmable gate arrays Field Programmable Gate Array, FPGA
- the processor 201 can execute various functions of the communication device by running or executing a software program stored in the memory 202 and calling data stored in the memory 202.
- the processor 201 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 2.
- the communication device may include multiple processors, such as the processor 201 and the processor 205 shown in FIG. 2.
- processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
- the processor here may refer to one or more communication devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
- the memory 202 can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
- the dynamic storage device can also be electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
- the memory 202 may exist independently and is connected to the processor 201 through a communication bus 204.
- the memory 202 may also be integrated with the processor 201.
- the memory 202 is used to store a software program that executes the solution of the present application, and is controlled by the processor 201 to execute, so as to implement the method provided in the following method embodiment.
- the transceiver 203 is used to communicate with other communication devices.
- the transceiver 203 can also be used to communicate with a communication network, such as Ethernet, radio access network (RAN), wireless local area network (Wireless Local Area Networks, WLAN), and so on.
- the transceiver 203 may include a receiving unit to implement a receiving function, and a sending unit to implement a sending function.
- the communication bus 204 may be an industry standard architecture (ISA) bus, an external communication device interconnection (Peripheral Component, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus.
- ISA industry standard architecture
- PCI Peripheral Component
- EISA Extended Industry Standard Architecture
- the bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 2, but it does not mean that there is only one bus or one type of bus.
- the structure of the communication device shown in FIG. 2 does not constitute a limitation on the communication device, and may include more or fewer components than shown in the figure, or a combination of some components, or a different component arrangement.
- FIG. 3 is a flowchart of the method for determining a transmission resource provided in the first embodiment of the application. As shown in FIG. 3, the method provided by this embodiment is It includes the following steps:
- the first device determines a second resource set from the first resource set, and the second resource set does not include at least one of the following resources included in the first resource set: downlink transmission unit, side link synchronization signal (SideLink Synchronization Signal) , SLSS) transmission unit, a transmission unit occupied by an LTE side link, a flexible transmission unit, an uplink transmission unit, and the transmission unit includes a time slot or a symbol.
- downlink transmission unit side link synchronization signal (SideLink Synchronization Signal) , SLSS) transmission unit, a transmission unit occupied by an LTE side link, a flexible transmission unit, an uplink transmission unit, and the transmission unit includes a time slot or a symbol.
- SideLink Synchronization Signal SideLink Synchronization Signal
- the first device refers to the definition and possible implementation of the first device in the foregoing communication scenario, which will not be repeated here.
- the transmission of the side link synchronization signal may also include a physical side link broadcast channel (Physical Sidelink Broadcast Channel, PSBCH).
- the side link synchronization signal transmission unit is a transmission unit occupied by SLSS and PSBCH.
- the side link synchronization signal transmission unit may only include the transmission unit occupied by the SLSS, or may include both the transmission unit occupied by the SLSS and the PSBCH.
- the SLSS includes a two-symbol primary synchronization signal (PSS: Primary Synchronization Signal) and a secondary synchronization signal (SSS: Secondary Synchronization Signal).
- the first resource set may be pre-appointed by the base station (e.g., eNB or gNB) and the first device, or may be pre-configured for the first device, or may be the base station through signaling (e.g., radio resource control (radio resource control)). , RRC) signaling or system information (System Information Block, SIB) is configured for the first device, or it may be configured for the first device by a third device performing sideline communication.
- the base station e.g., eNB or gNB
- SIB System Information Block
- the first resource set may only include time domain resources.
- the first resource set may be a subframe set of [0, T-1], and T is a preset constant, such as 30, 1024, 10240, etc., in this application
- T is a preset constant, such as 30, 1024, 10240, etc., in this application
- the value of T is not limited.
- the first resource set may be indicated by the base station through signaling with a period of P1 and/or a period of P2.
- P1 and/or P2 can be divisible by 20, or P2 is configured to be 3 milliseconds (ms) or 4 milliseconds (ms).
- the first resource set is not limited to the subframe set of [0, T-1], and may also be any subset of the subframe set of [0, T-1].
- the first resource set is obtained by offsetting the [0, T-1] subframe set according to a certain time domain offset value, and the time domain offset value may be indicated by the base station through signaling or pre-configured to the first For the device, the time domain offset value may be one or more subframes or time slots.
- the first resource set includes not only time domain resources, but also frequency domain resources.
- the first resource set is a resource corresponding to a subframe set of [0, T-1] on a certain carrier, or A resource set includes a resource set corresponding to a certain size and frequency position on the subframe set of [0, T-1], which is not limited in this application.
- the resources in the first resource set include: a downlink transmission unit, a side link synchronization signal transmission unit, a transmission unit occupied by an LTE side link, a flexible transmission unit, and an uplink transmission unit.
- the transmission unit is a time slot. Or symbol.
- Some resources in the first resource set can be used for NR side link transmission, and some resources cannot be used for NR side link transmission. For example, time slots or symbols used for downlink transmission cannot be used for NR side link transmission. Exclude or skip the downlink time slot or downlink symbol in the first resource set, or exclude the downlink time slot.
- the side link synchronization signal is used for the synchronization signal transmission unit, but it cannot be used for NR side link transmission, and the side link synchronization signal transmission unit needs to be excluded from the first resource set.
- the transmission occupied by the LTE side link cannot be used for NR side link transmission. Therefore, the transmission unit occupied by the LTE side link also needs to be excluded from the first resource set.
- the flexible time slot or flexible symbol can be used for both uplink transmission and downlink transmission. Therefore, the flexible time slot or flexible symbol can be excluded or not.
- whether to exclude flexible time slots or flexible symbols depends on the indication of the configuration information.
- the base station may send configuration information indicating that all or part of the flexible time slot is used for side-line transmission, or may indicate that all or part of the flexible time slot is not used for side-line transmission.
- the transmission resources of the side link can be only on the side slot or symbol, or on the uplink symbol or slot, or on the flexible slot or symbol, or at the same time on the flexible symbol.
- Uplink symbols and side row symbols/time slots two or three this application does not limit this.
- Figure 4 is a schematic diagram of a transformation from the first resource set to the second resource set.
- the first resource set includes 30 time slots, numbered 0-29, and the time slots marked with D are Downlink time slots, the time slots marked with U are uplink time slots, and the time slots marked with F are flexible time slots or flexible symbols.
- the downlink time slots are time slots numbered 0, 5, 10, 15, 25, the flexible time slots are numbered 1, 6, 16, 21, and 26, and the SLSS transmission time slot is numbered 9.
- 17 uplink time slots After excluding all the downlink time slots, flexible time slots, and SLSS time slots in the first resource set, 17 uplink time slots remain.
- the 17 uplink time slots form the second resource set.
- the number above the second resource set in Figure 4 Is the actual physical number of the time slot in the second resource set.
- the numbers 0-16 under the second resource set in Figure 4 are the logical numbers of the time slots in the second resource set. The logical numbers are only numbers defined for the convenience of description, and Not enough to limit the application.
- the flexible time slots in the first resource set are excluded, and the obtained second resource set only includes uplink time slots.
- the flexible time slots or flexible symbols in the first resource set are not excluded, and the obtained second resource set includes uplink time slots and flexible time slots.
- the downlink time slot is a time slot in which all symbols in the time slot are used for downlink transmission
- the uplink time slot is a time slot in which all symbols in the time slot are used for uplink transmission
- the flexible time slot is a time slot. All symbols in the slot are used for flexible transmission time slots.
- a downlink time slot is a time slot where some symbols in the time slot are used for downlink transmission
- an uplink time slot is a time slot where some symbols in the time slot are used for uplink transmission
- a flexible time slot is a time slot where some symbols in the time slot are used for flexible transmission. Time slot.
- the method in this embodiment can be applied to a scenario where LTE and NR coexist, and can also be applied separately to an NR scenario.
- part of the resources in the first resource set is used for cellular links (Uulink), and another part of the resources is used for side links of NR-V2X.
- Downlink time slots that cannot be used for NR side link transmission include time slots occupied by LTE cellular links (LTE U link), and/or time slots occupied by NR cellular links (NR U link).
- LTE U link refers to the link for communication between the UE and the network device, including uplink and/or downlink.
- the side link refers to the link for communication between the UE and the UE.
- the SLSS time slots that cannot be used for NR side uplink transmission include the time slots occupied by the synchronization signal of the LTE side uplink and/or the time slots occupied by the NR side uplink synchronization signal.
- the first resource set is configured on one carrier, and the carrier can be used for both cellular link and side link transmission.
- the first resource set is configured on one carrier, and the carrier is only used for sidelink transmission.
- the first device determines the second resource set from the first resource set according to the subcarrier space (SCS) of the second resource set and/or the third resource set.
- SCS subcarrier space
- NR supports different types of SCS, such as 15kHz, 30kHz, 60kHz, 120kHz, 240kHz.
- the second resource set needs to be determined according to the SCS of the NR.
- the time length of the subframe is fixedly defined as 1 ms.
- the SCS is 15 kHz
- the length of a time slot is 1 ms, that is, the length of the time slot is equal to the length of the subframe.
- the SCS is 30 kHz
- the length of one subframe is still 1ms.
- the length of one time slot becomes 0.5ms
- one subframe includes two time slots.
- the SCS is 60 kHz
- the length of one time slot becomes 0.25 ms
- one subframe includes 4 time slots.
- the size of the time slot and the possible position within a subframe are different, and the first resource set may be configured to the first device in a subframe manner, and the first device determines the second resource set , It is necessary to determine which time slots in the first resource set cannot be used for NR side link transmission according to the SCS.
- At least one of the following resources that cannot be used for NR side link transmission is excluded from the first resource set: downlink transmission unit, side link synchronization signal transmission unit, long-term evolution LTE side link occupation
- the transmission unit, the flexible transmission unit, and the uplink transmission unit to obtain the second resource set.
- the second resource set also does not include a time slot in which the number of uplink symbols, the number of flexible symbols, or the number of side row symbols is less than the first preset value.
- the first device needs to exclude from the first resource set the time slots in which the number of uplink symbols, the number of flexible symbols, or the number of side row symbols is less than the first preset value.
- the first preset value may be configured by signaling, or may be predefined, for example, the first preset value is 3 or 4.
- the number of symbols included in a slot is 12 or 14.
- the time slot cannot be used for NR side uplink transmission. Accordingly, the first device obtains data from the first resource Centrally exclude the time slots in which the number of uplink symbols, the number of flexible symbols, or the number of side-line symbols is less than the first preset value.
- a time slot includes other symbols in addition to uplink symbols, flexible symbols or side row symbols, but the number of uplink symbols, flexible symbols or side row symbols included in the time slot is greater than or equal to the first With a preset value, the time slot can be used for NR side link transmission.
- the first preset value is not less than 3, such as 3 or 4, but not limited to 3 or 4. Taking the uplink symbol as an example, there are only two uplink symbols in a time slot, and the remaining symbols cannot be used for side uplink transmission, so the time slot is determined as not being used for NR side uplink transmission. If there are 5 uplink symbols in the time slot and none of the remaining symbols can be used for side-link transmission, the time slot can be used for NR side-link transmission. The reason is that during side-link transmission, symbols for automatic gain control or transceiver conversion are required. These symbols themselves cannot be used for transmission. Therefore, the first preset value is set to at least not less than 3.
- different feedback channel formats have different corresponding first preset values.
- first preset values when the side slot is used to transmit the feedback channel, different feedback channel formats have different first preset values.
- first preset values such as 4, 5, 6
- first preset value such as 3, 4, etc.
- the optional long feedback channel has more time domain symbols in the time domain than the short feedback channel.
- different subcarrier intervals have different first preset values. The reason is that large sub-carrier spacing requires more symbols for automatic gain control.
- the second resource set and the LTE side link are located on the same carrier, or the second resource set and the LTE side link are located on a different carrier in the same frequency band, or the second resource set and the LTE cellular link Different carriers located on the same carrier or the same frequency band, or, the second resource set and the NR cellular link are located on the same carrier or different carriers of the same frequency band.
- the second resource set and the LTE side link are located on the same carrier, the second resource set does not include the time slot occupied by the LTE side link.
- the second resource set and the LTE side link are on different carriers in the same frequency band, for example, the second resource set is on the first carrier, the LTE side link is on the second carrier, and the first carrier and the second carrier are on the same carrier Frequency band, the second resource set does not include the time slot occupied by the LTE side link on the second carrier.
- the second resource set and the LTE cellular link are located on the same carrier or on different carriers of the same frequency band, the second resource set does not include the downlink time slot occupied by the LTE cellular link.
- the second resource set and the NR cellular link are located on the same carrier or different carriers in the same frequency band, the second resource set does not include the downlink time slot occupied by the NR cellular link.
- the method further includes: the first device acquires second indication information, where the second indication information is used to indicate the side row transmission resources in the first resource set, correspondingly , The first device determines the second resource set from the first resource set, specifically:
- the first device determines the second resource set from the first resource set according to the second indication information.
- the second resource set does not include: downlink transmission unit, side link synchronization transmission unit, transmission unit occupied by LTE side link, flexible Transmission unit and uplink transmission unit.
- the second indication information may be sent by the base station to the first device through dedicated signaling.
- the first device When the base station instructs the first device through dedicated signaling, which resources in the first resource set are used for NR side link transmission, the first device does not include all of the following resources from the first resource set according to the second indication information : Downlink transmission unit, side link synchronization transmission unit, transmission unit occupied by LTE side link, flexible transmission unit and uplink transmission unit to obtain the second resource set.
- the method further includes: the first device acquires third indication information, where the third indication information is used to indicate that all or part of the flexible symbols in the first resource set Configure as up symbol and/or side symbol.
- the third indication information may be sent by the base station to the first device through dedicated signaling.
- the first device configures all or part of the flexible symbols in the first resource set as upstream symbols and/or side symbols according to the third indication information.
- the third indication information can specifically indicate the following situations:
- the third indication information indicates that all flexible symbols in the first resource set are modified to uplink symbols or side-line symbols, and the side-line symbols are symbols used for side-link transmission.
- the third indication information indicates to modify all the flexible symbols in the first resource set to uplink symbols and side-line symbols, specifically which flexible symbols in the first resource set are modified to uplink symbols, and which flexible symbols modify the side-line symbols.
- This embodiment is incorrect. This restriction can be arbitrarily configured according to actual needs.
- the third indication information indicates that the flexible symbols on the even-numbered subframes in the first resource set are modified to uplink symbols, and the flexible symbols on the odd-numbered subframes in the first resource set are modified to side row symbols.
- the third indication information indicates that the flexible symbol on the subframe numbered 0-AAAA is modified to an uplink symbol, and the flexible symbol on AAAA-10240 is modified to a side row symbol. This application does not limit this.
- the third indication information indicates that part of the flexible symbols in the first resource set are modified to uplink symbols or side-line symbols. In this manner, it is necessary to indicate which flexible symbols are modified to the uplink symbols or side-line symbols, for example, indicating that the number is 0-5 The symbol of is modified to an up symbol or a side symbol. Or, indicating that one or more flexible symbols are spaced to modify the remaining flexible symbols to uplink symbols or side row symbols.
- the third indication information indicates to modify part of the flexible symbols in the first resource set to uplink symbols and sideline symbols, which of the flexible symbols in the part of flexible symbols are modified to uplink symbols, and which flexible symbols modify the sideline symbols.
- This embodiment is not correct. This restriction can be arbitrarily configured according to actual needs.
- the first device modifies the resource type in the first resource set according to the third instruction information
- the first device determines the second resource set according to the first resource set, it needs to exclude from the first resource set those that cannot be used in the NR side chain
- the transmission resources have changed.
- the third indication information indicates that all flexible symbols in the first resource set are modified to uplink symbols or side-line symbols, then there are no flexible symbols in the first resource set, and when the first device determines the second resource set from the first resource set, There is no need to exclude flexible symbols.
- part of the uplink time slots in the first resource set can also be excluded.
- the base station can indicate which uplink time slots of the first device cannot be used for sidelink transmission through signaling, for example, the number is indicated by the fourth indication information.
- the 12 uplink time slot cannot be used for sidelink transmission.
- the first device excludes the uplink time slots that cannot be used for sidelink transmission from the first resource set according to the fourth indication information.
- the first device determines a third resource set used for transmission on the first channel from the second resource set according to the first indication information.
- the first indication information may be bitmap indication information (bitmap) of length L, and the value of each bit in the bitmap indication information is 0 or 1.
- the value of L can be an integer multiple of 2 and/or 3 and/or 4 and/or 5.
- L can be 3, 4, 5, 12, 15, 20, 30, 60, 80, 100, etc.
- the bitmap indication information can be 11010, where the subframe or time slot corresponding to bit 1 can be used for sidelink transmission, and the subframe or time slot corresponding to bit 0 It cannot be used for side link transmission.
- the first device determines from the second resource set that the time slot corresponding to the bit value of 1 is the transmission resource in the third resource set according to the bitmap indication information.
- Figure 5 is a schematic diagram of indicating resources through bitmap indication information.
- the second resource set includes a total of 15 time slots
- the logical number is 0-14
- the value of L is 5
- the position indication information is 11010
- the second resource set is matched with the first bitmap indication information.
- the bitmap indication information is repeated in the time domain.
- the logical numbers are 0, 1, 3, 5, 6, 8,
- the time slots of 10, 11, 13, and 15 constitute the third resource set.
- the third resource set can be obtained.
- the first indication information includes first information and second information, where the first information is used to indicate which subframes in the second resource set can be used for the first channel transmission, and the second information is used to indicate the second Which time slots in the subframes in the resource set that can be used for the first channel transmission can be used for the first channel transmission.
- the second resource set further includes a reserved time slot
- the third resource set does not include the reserved time slot
- the reserved time slot may be an uplink time slot.
- the first device needs to exclude the reserved time slots from the second resource set, and the first device excludes the reserved time slots from the second resource set before matching the first indication information with the second resource set.
- the reserved time slots can be distributed in the second resource set in any of the following ways:
- the reserved time slots are continuously distributed in Nr time slots at the end of the second resource set, where Nr is the number of reserved time slots;
- the reserved time slots are continuously distributed in Nr time slots at the head of the second resource set;
- the reserved time slots are distributed at equal intervals in the Nr time slots in the second resource set, where the interval can be configured, for example, 5 or 10 time slots.
- the number of Nr reserved time slots Nr can be pre-configured.
- the base station configures the number of reserved time slots Nr to a fixed value of 3, 4, or 5.
- the distribution mode of the reserved time slots can also be pre-configured by the base station.
- the base station is configured with two reserved time slots, and the reserved time slots are distributed at equal intervals.
- the position of the reserved time slot is shown in Figure 6, that is, the first time slot of the second resource set (that is, the time slot with logical number 0 and physical number 2) is taken as the reserved time slot, and the time slot is reserved. If the interval is 7 time slots, the 9th time slot in the second resource set (that is, the time slot with logical number 8 and physical number 17) is a reserved time slot.
- the number of reserved time slots Nr may be determined by the first device.
- the first device determines the reserved time slots from the second resource set according to the length L of the bitmap indication information, where Determining reserved time slots in resource concentration includes determining the number of reserved time slots and the number of reserved time slots.
- the first device determines the number Nr of reserved time slots included in the second resource set by using the following formula:
- L is the length of the bitmap indication information
- M is the number of time slots included in the second resource set
- mod represents the remainder operation. Assuming that M is 17, L is 5, 17 divided by 5 equals 3 and remaining 2, then the number of reserved time slots Nr is 2.
- the first device determines the number of reserved time slots Nr according to the length L of the bitmap indication information.
- the first device determines the number r of the reserved time slot according to the following formula:
- Nr is the number of reserved time slots
- L is the length of the bitmap indication information
- floor() represents rounding down
- M is the number of time slots included in the second resource set
- n is an intermediate variable, which is an integer .
- This method is equivalent to the interval (or distributed) distribution of reserved time slots in the second resource set.
- the first device determines the number r of the reserved time slot according to the following formula:
- Nr is the number of reserved time slots
- L is the length of the bitmap indication information
- floor() represents rounding down
- M is the number of time slots included in the second resource set
- n is an intermediate variable, which is an integer .
- Figure 7 is another distribution diagram of the reserved time slots in the second resource set. As shown in Figure 7, the second resource set is the second resource set obtained in the manner shown in Figure 4, and the reserved time slots are continuously distributed in The end of the second resource set.
- the first device After determining the number and serial number of reserved time slots, the first device excludes the reserved time slots from the second resource set, and determines the third resource set from the remaining second resource set.
- the first device may also determine the number of reserved time slots according to the distribution mode of reserved time slots configured by the base station. For example, if the reserved time slots are distributed continuously at the end of the second resource set, the number of reserved time slots is determined to be the number of the Nr time slots at the end of the second resource set.
- the time slot distribution mode is that the reserved time slots are continuously distributed at the head of the second resource set, and the number of the reserved time slots is determined to be the number of the Nr time slots in the head of the second resource set.
- Fig. 8 is another schematic diagram of the distribution of reserved time slots in the second resource set.
- the second resource set is the second resource set obtained in the manner shown in Fig. 4, and the reserved time slot continuous read distribution At the head of the second resource set.
- the number of time slots in the second resource set after the reserved time slots are removed can be divisible by L, and the number of time slots in the second resource set without the reserved time slots can not be divisible by L.
- the number of time slots in the second resource set after the reserved time slots are removed may not be evenly divisible by L.
- the bitmap indication information determines that the time slot corresponding to the bit value of 1 is the first transmission resource in the third resource set. According to the bitmap indication information, after being divisible by L from the second resource set The time slot corresponding to the bit value 1 in the remaining second part of the resources is determined to be the second transmission resource in the third resource set.
- the first part of the resources in the second resource set that is divisible by L is the time slots numbered 0-14, a total of 15 time slots; the remaining resources in the second resource set are divisible by L
- the second part of the resources is the time slots numbered 15-16, a total of 2 time slots.
- the bitmap indication information is 11010
- the first device matches the bitmap indication information with the first part of the resource to obtain the first transmission resource, and similarly matches the bitmap indication information with the second part of the resource to obtain the second transmission resource . Since the second part of the resource has only 2 time slots, and the bitmap indication information has a length of 5, the first 2 bits of the bitmap indication information are matched with the second part of the resource to obtain the second transmission resource.
- the second resource set includes timeslots in which the number of uplink symbols, the number of flexible symbols, or the number of side-line symbols is less than the first preset value
- the third resource set does not include the number of uplink symbols, the number of flexible symbols, or the number of side-line symbols.
- the first device needs to exclude from the second resource set the time slots in which the number of uplink symbols, the number of flexible symbols, or the number of side-line symbols is less than the first preset value, and then determine the time slots from the second resource set according to the first indication information
- the third resource set transmitted on the first channel.
- the first channel includes at least one of the following channels: a side row data channel, a side row control channel, and a side row feedback channel.
- the side row data channel is used to transmit user data
- the side row control channel is used to transmit control control signaling
- the side row feedback channel is used to transmit feedback information (such as ACK or NACK).
- the resources of the side row feedback channel are configured in the first resource set, the second resource set, or the third resource set in a period of N, where N is a positive integer.
- the length of the feedback resource in the time slot can also be obtained through configuration information.
- the configuration information here may be sent by the base station or pre-configured to the first device or sent by the third device.
- the value of the resource period N of the side row feedback channel is associated with a resource pool, and the resource pool belongs to any one of the first resource set, the second resource set, or the third resource set, and the resource pool includes time-frequency resources .
- the resources of the side-line feedback channel appear in a period of N, and the resource pools associated with different values of N may occupy different frequency domain resources.
- the resource pools associated with different values of N are different; and/or the resource pools associated with different values of N partially overlap.
- the resource pools associated with different values of N have different resources in the time domain, but the same resources in the frequency domain.
- the time domain resources occupied by the resource pool associated with N are subframes 2-5, and when the value of N is 1, the time domain resources occupied by the resource pool associated with N are It is subframe No. 6-9, when the value of N is 4 and 1, the frequency domain resources occupied by the resource pool associated with N are all the first carrier.
- the frequency domain resource occupied by the resource pool associated with N is the first carrier, and when the value of N is 1, the frequency domain resource occupied by the resource pool associated with N is the second carrier or For different physical resource blocks or subchannels in the first carrier, when the value of N is 4 and 1, the time domain resources occupied by the resource pool associated with N are all subframes 2-5.
- the frequency domain resource occupied by the resource pool associated with N is the first carrier, and the time domain resource occupied by the resource pool associated with N is subframe 2-5
- the value of N is When the value is 3, the frequency domain resource occupied by the resource pool associated with N is the second carrier, and the time domain resource occupied by the resource pool associated with N is subframes 6-9.
- the partial overlap of resource pools associated with different values of N means that the resource pools associated with different values of N partially overlap in both the time domain and the frequency domain.
- the frequency domain resources occupied by the resource pool associated with N are all the first carrier, and when the value of N is 1, the time domain resources occupied by the resource pool associated with N are all For subframes 2-5, when the value of N is 1, the time domain resources occupied by the resource pool associated with N are all subframes 4-7.
- a resource pool associated with a smaller N value includes a resource pool associated with a larger N value; or, a resource pool associated with a larger N value includes a resource pool associated with a smaller N value.
- the time slots used for the first channel transmission in the third resource set obtained from the second resource set include two types of time slots: a first type of time slot and a second type of time slot, the first type of time slot is a time slot All symbols in are used for side-line transmission time slots, and the second type of time slots are time slots where part of the symbols in the time slot are used for side-line transmission.
- the second type of time slot is any one of the following time slots:
- a time slot including downlink symbols and at least one of the following symbols: flexible symbols, uplink symbols or sideline symbols;
- Time slots including uplink symbols and at least one of the following symbols: flexible symbols or side-line symbols;
- the third resource set only includes the first type of time slot or the second type of time slot.
- the time slots in the third resource set may include uplink time slots and/or flexible time slots, where the uplink time slots in the third resource set are a subset of the uplink time slots in the first resource set.
- the flexible time slot in the third resource set is a subset of the flexible time slot in the first resource set.
- the first device sends or receives the first channel on the transmission resource included in the third resource set.
- Step S103 is an optional step. After acquiring the second resource set, the first device can use the resources in the third resource set to send the first channel to the second device, or receive the first channel sent by the second device to complete the data Transmission, the third resource set can also be used for other operations.
- the first device determines the second resource set from the first resource set, and the second resource set does not include at least one of the following resources included in the first resource set: downlink transmission unit, side link synchronization signal transmission Unit, the transmission unit occupied by the LTE side uplink, the flexible transmission unit, the uplink transmission unit, the transmission unit includes a time slot or a symbol, the first device collects from the second resource according to the first indication information, and determines to be used for the first channel transmission The third resource set. Furthermore, the first channel is sent or received on the transmission resources included in the third resource set to complete the transmission of sideline data. This method can flexibly allocate time slot-level or symbol-level side link transmission resources for terminal equipment, so that the resource allocation of side links in the NR network is more flexible.
- FIG. 9 is a schematic structural diagram of the first device provided in Embodiment 2 of this application. As shown in FIG. 9, the first device provided in this embodiment includes:
- the first determining module 11 is configured to determine a second resource set from a first resource set, and the second resource set does not include at least one of the following resources included in the first resource set: a downlink transmission unit, a side chain A path synchronization signal transmission unit, a transmission unit occupied by a Long Term Evolution LTE side link, a flexible transmission unit, an uplink transmission unit, the transmission unit includes a time slot or a symbol;
- the second determining module 12 is configured to determine a third resource set used for transmission of the first channel from the second resource set according to the first indication information.
- Optional also includes:
- the transceiver module 13 is configured to send or receive the first channel on the transmission resources included in the third resource set.
- the first determining module 11 is specifically configured to:
- the second resource set is determined from the first resource set according to the subcarrier interval of the second resource set.
- the first resource set is indicated by signaling with a period of P1 and/or a period of P2, wherein the P1 and/or P2 can be divisible by 20, or the P2 is configured to be 3 milliseconds or 4 milliseconds .
- the second resource set includes reserved time slots, and the third resource set does not include the reserved time slots.
- the reserved time slots are distributed in the second resource set in any one of the following ways:
- the reserved time slots are continuously distributed in Nr time slots at the end of the second resource set, where Nr is the number of reserved time slots;
- the reserved time slots are continuously distributed in Nr time slots at the head of the second resource set;
- the reserved time slots are distributed at equal intervals in the Nr time slots in the second resource set.
- the first indication information is bitmap indication information of length L
- the value of each bit in the bitmap indication information is 0 or 1
- the second determining module 12 is specifically configured to :
- the determining the reserved time slot from the second resource set according to the L is specifically:
- the number Nr of reserved time slots included in the second resource set is determined by the following formula:
- L is the length of the bitmap indication information
- M is the number of time slots included in the second resource set
- the determining the number of the reserved time slot according to the number of reserved time slots Nr is specifically as follows:
- Nr is the number of reserved time slots
- L is the length of the bitmap indication information
- floor() represents rounding down
- M is the number of time slots included in the second resource set.
- the determining the number of the reserved time slot according to the number of reserved time slots Nr is specifically as follows:
- Nr is the number of reserved time slots
- L is the length of the bitmap indication information
- floor() represents rounding down
- M is the number of time slots included in the second resource set.
- the second resource set does not include a time slot in which the number of uplink symbols, the number of flexible symbols, or the number of side row symbols is less than the first preset value.
- the second resource set includes timeslots in which the number of uplink symbols, the number of flexible symbols, or the number of side-line symbols is less than a first preset value, and the third resource set does not include the number of uplink symbols and the number of flexible symbols Count or the number of side-line symbols to the first preset value time slot.
- the first indication information is bitmap indication information with length L, and each bit in the bitmap indication information has a value of 0 or 1.
- the second determining module is specifically configured to:
- bitmap indication information it is determined from the second resource set that the time slot corresponding to the bit value of 1 is the transmission resource in the third resource set.
- the time slot corresponding to a bit value of 1 determined from the second resource set according to the bitmap indication information is a transmission resource in the third resource set, specifically:
- the time slot corresponding to the value 1 is the first transmission resource in the third resource set;
- bitmap indication information it is determined from the remaining second part of resources after being divisible by L in the second resource set that the time slot corresponding to the bit value of 1 is the second transmission resource in the third resource set.
- the L is an integer multiple of 2 and/or 3 and/or 4 and/or 5.
- Optional also includes:
- a first obtaining module configured to obtain second indication information before the first determining module determines a second resource set, where the second indication information is used to indicate sideline transmission resources in the first resource set;
- the first determining module 11 is specifically configured to:
- the second resource set is determined from the first resource set, and the second resource set does not include: the downlink transmission unit, the side link synchronization transmission unit, and the The transmission unit occupied by the LTE side link, the flexible transmission unit and the uplink transmission unit.
- Optional also includes:
- the second acquiring module is configured to acquire third indication information before the first determining module determines the second resource set, where the third indication information is used to instruct to configure all or part of the flexible symbols in the first resource set Is the up symbol and/or the side symbol;
- the modification module is configured to configure all or part of the flexible symbols in the first resource set as uplink symbols and/or side-line symbols according to the third indication information.
- the first channel includes at least one of the following channels: a side row data channel, a side row control channel, and a side row feedback channel.
- the resources of the side row feedback channel are configured in the first resource set, the second resource set, or the third resource set in a period of N, where N is a positive integer.
- the value of the resource period N of the side row feedback channel is associated with a resource pool, and the resource pool belongs to any one of the first resource set, the second resource set, or the third resource set, so
- the resource pool includes time-frequency resources.
- the resource pools associated with different values of N are different; and/or the resource pools associated with different values of N partially overlap.
- the resource pool associated with a smaller value of N includes a resource pool associated with a larger value of N; or, the resource pool associated with a larger value of N includes a resource pool associated with a smaller value of N.
- the downlink time slots not included in the second resource set include:
- the side link synchronization time slot not included in the second resource set includes:
- the time slot occupied by the synchronization signal of the LTE side link and/or,
- Time slot occupied by NR side uplink synchronization signal is Time slot occupied by NR side uplink synchronization signal.
- the second resource set and the LTE side link are located on the same carrier, and the second resource set does not include the LTE side link occupied Time slot; or,
- the second resource set is located on the first carrier, the LTE side link is located on the second carrier, the first carrier and the second carrier are located in the same frequency band, and the second resource set does not include the LTE The time slot occupied by the side link on the second carrier.
- the downlink time slot includes the LTE cellular link Occupied downlink time slot;
- the downlink time slot includes a downlink time slot occupied by the NR cellular link.
- the time slots used for the first channel transmission in the third resource set include the first type time slots and/or the second type time slots, and the first type time slots are used for all symbols in the time slot.
- the second type of time slots are time slots where part of symbols in the time slots are used for side-line transmission.
- the time slots in the third resource set include uplink time slots and/or flexible time slots, wherein the uplink time slots in the third resource set are a subset of the uplink time slots in the first resource set ,
- the flexible time slot in the third resource set is a subset of the flexible time slot in the first resource set.
- the second type of time slot is any one of the following time slots:
- a time slot including downlink symbols and at least one of the following symbols: flexible symbols, uplink symbols or sideline symbols;
- Time slots including uplink symbols and at least one of the following symbols: flexible symbols or side-line symbols;
- a downlink time slot is a time slot where all symbols in the time slot are used for downlink transmission
- an uplink time slot is a time slot where all symbols in the time slot are used for uplink transmission
- a flexible time slot is a time slot where all symbols in the time slot are used for uplink transmission. Time slot for flexible transmission.
- the fourth embodiment of the present application provides a computer-readable storage medium that stores instructions, and when the instructions are executed, the computer is caused to execute the method described in the first embodiment, and the specific implementation methods are as follows: The technical effects are similar, so I won’t repeat them here.
- the processor used by the first device in the embodiment of the present application may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) ) Or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
- the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
- the bus described in the embodiments of the present application may be an Industry Standard Architecture (ISA) bus, Peripheral Component (PCI) bus, or Extended Industry Standard Architecture (EISA) bus, etc. .
- ISA Industry Standard Architecture
- PCI Peripheral Component
- EISA Extended Industry Standard Architecture
- the bus can be divided into address bus, data bus, control bus, etc.
- the buses in the drawings of this application are not limited to only one bus or one type of bus.
- the disclosed 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 separate, 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 above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
- the above-mentioned integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium.
- the above-mentioned software functional unit is stored in a storage medium and includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor execute the method described in the various embodiments of the present application. Part of the steps.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本申请实施例提供一种传输资源确定方法和装置,可以应用于D2D或车联网,例如V2X、LTE-V等,所述方法包括第一设备从第一资源集中确定第二资源集,第二资源集不包括第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,该传输单元包括时隙或者符号,第一设备根据第一指示信息从第二资源集中,确定用于第一信道传输的第三资源集。进而在第三资源集包括的传输资源上发送或接收第一信道,完成侧行数据的传输。该方法能够为终端设备灵活的分配时隙级或者符号级的侧行链路传输资源,使得NR网络中的侧行链路的资源分配更加灵活。
Description
本申请要求于2019年4月30日提交中国专利局、申请号为201910364437.6、申请名称为“侧行链路的传输资源的处理方法和装置”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。
本申请涉及通信技术,尤其涉及一种传输资源确定方法和装置。
车与任何事物(vehicle to everything,V2X)技术实现了车辆与外界的通信,V2X包括车与道路设施(vehicle to infrastructure,V2I)业务、车-网络(vehicle to network,V2N)业务、车-人(vehicle to pedestrian,V2P)业务、车-车(vehicle to vehicle,V2V)业务。基于长期演进(long term evolution,LTE)网络的V2X(以下简称LTE-V2X),存在两种通信接口:Uu和PC5,Uu接口用于终端设备与资源调度设备之间的通信,PC5接口用于终端设备与终端设备之间的侧行链路(sidelink,SL)通信,上述两个通信接口都可以用于传输V2X数据。
现有的LTE-V2X通信中,终端设备使用的SL传输资源由资源调度设备指示,资源调度设备通过信令向终端设备指示子帧级别的SL传输资源,即资源调度设备通过信令指示终端设备哪些子帧用于SL传输。
但是,LTE-V2X资源的指示方式,不能直接用于基于新空口(new radio,NR)网络的V2X(以下简称NR-V2X)中,NR支持更加灵活的符号级或者时隙级资源分配方式,且支持更多更复杂的应用场景。
发明内容
本申请实施例提供一种传输资源确定方法和装置,使得NR网络中的侧行链路的资源分配更加灵活。
本申请第一方面提供一种传输资源确定方法,包括:
第一设备从第一资源集中确定第二资源集,所述第二资源集不包括所述第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,长期演进LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,所述传输单元包括时隙或者符号;
所述第一设备根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集。
可选的,所述方法还包括:
所述第一设备在所述第三资源集包括的传输资源上发送或接收所述第一信道。
可选的,所述第一设备从第一资源集中确定第二资源集,包括:
所述第一设备根据所述第二资源集的子载波间隔,从所述第一资源集中确定所述第二资源集。
可选的,所述第一资源集由周期为P1和/或周期为P2的信令指示,其中所述P1和/或P2能被20整除,或者所述P2被配置为3毫秒或4毫秒。
可选的,所述第二资源集中包括预留时隙,所述第三资源集中不包括所述预留时隙。
可选的,所述预留时隙按以下方式中的任意一种方式分布在所述第二资源集中:
所述预留时隙连续地分布在所述第二资源集的尾部的Nr个时隙,其中Nr为所述预留时隙的数量;
所述预留时隙连续地分布在所述第二资源集的头部的Nr个时隙;
所述预留时隙等间隔地分布在所述第二资源集中的Nr个时隙。
可选的,所述第一指示信息为长为L的位图指示信息,所述位图指示信息中的每一个比特位的取值为0或1,所述第一设备根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集,包括:
所述第一设备根据所述L,从所述第二资源集中确定所述预留时隙;
所述第一设备根据所述第一指示信息和所述预留时隙,从所述第二资源集中确定所述第三资源集。
可选的,所述第一设备根据所述L,从所述第二资源集中确定所述预留时隙,包括:
所述第一设备通过以下公式确定所述的第二资源集中包括的预留时隙的个数Nr:
Nr=M mod L;
其中,L为所述位图指示信息的长度,M为所述第二资源集包括的时隙个数;
所述第一设备根据所述预留时隙的个数Nr,确定所述预留时隙的编号。
可选的,所述第一设备根据所述预留时隙的个数Nr,确定所述预留时隙的编号,包括:
所述第一设备根据以下公式确定所述预留时隙的编号r:
r=floor(n*M/Nr),n=0,1,…,Nr-1.
其中,Nr为所述预留时隙的个数,L为所述位图指示信息的长度,floor()表示向下取整,M为所述第二资源集包括的时隙个数。
可选的,所述第一设备根据所述预留时隙的个数Nr,确定所述预留时隙的编号,包括:
所述第一设备根据以下公式确定所述预留时隙的编号r:
r=K*L+n,n=0,1,…,Nr-1;
K=floor(M/L);
其中,Nr为所述预留时隙的个数,L为所述位图指示信息的长度,floor()表示向下取整,M为所述第二资源集包括的时隙个数。
可选的,所述第二资源集还不包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙。
可选的,所述第二资源集中包括上行符号数、灵活符号数或侧行符号数小于第一 预设值的时隙,所述第三资源集中不包括所述上行符号数小于、灵活符号数或侧行符号数第一预设值的时隙。
可选的,所述第一指示信息为长为L的位图指示信息,所述位图指示信息中的每一个比特位的取值为0或1;
所述第一设备根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集,包括:
所述第一设备根据所述位图指示信息,从所述第二资源集中确定比特位取值为1对应的时隙为所述第三资源集中的传输资源。
可选的,所述第一设备根据所述位图指示信息,从所述第二资源集中确定比特位取值为1对应的时隙为所述第三资源集中的传输资源,包括:
当所述第二资源集中包括的时隙的个数M不是所述L的整数倍时,根据所述位图指示信息,从所述第二资源集中被L整除的第一部分资源中确定比特位取值为1对应的时隙为所述第三资源集中的第一传输资源;
根据所述位图指示信息,从所述第二资源集中被L整除后余下的第二部分资源中确定比特位取值为1对应的时隙为所述第三资源集中的第二传输资源。
可选的,所述L为2和/或3和/或4和/或5的整数倍。
可选的,所述第一设备从第一资源集中确定第二资源集之前,还包括:
所述第一设备获取第二指示信息,所述第二指示信息用于指示所述第一资源集中的侧行传输资源;
所述第一设备从第一资源集中确定第二资源集,包括:
所述第一设备根据所述第二指示信息,从所述第一资源集中确定所述第二资源集,所述第二资源集中不包括:所述下行传输单元,所述侧行链路同步传输单元,所述LTE侧行链路占用的传输单元,所述灵活传输单元和所述上行传输单元。
可选的,所述第一设备从第一资源集中确定第二资源集之前,还包括:
所述第一设备获取第三指示信息,所述第三指示信息用于指示将所述第一资源集中的全部或者部分灵活符号配置为上行符号和/或侧行符号;
所述第一设备根据所述第三指示信息,将所述第一资源集中的全部或者部分灵活符号配置为上行符号和/或侧行符号。
可选的,所述第一信道包括以下信道中的至少一种:侧行数据信道,侧行控制信道,侧行反馈信道。
可选的,所述侧行反馈信道的资源以周期N的方式配置在所述第一资源集、所述第二资源集或第三资源集中,其中N为正整数。
可选的,所述侧行反馈信道的资源周期N的取值关联一个资源池,所述资源池属于所述第一资源集、所述第二资源集或第三资源集中的任意一个,所述资源池包括时频资源。
可选的,所述N的不同取值关联的资源池不同;和/或,所述N的不同取值关联的资源池部分重叠。
可选的,较小的所述N值关联的资源池包含较大的N值关联的资源池;或者,较大的N值关联的资源池包含较小的所述N值关联的资源池。
可选的,当所述传输单元为时隙时,所述第二资源集不包括的下行时隙包括:
LTE蜂窝链路占用的下行时隙;和/或,
新无线NR蜂窝链路占用的下行时隙。
可选的,当所述传输单元为时隙时,所述第二资源集不包括的侧行链路同步时隙包括:
LTE侧行链路的同步信号占用的时隙;和/或,
NR侧行链路同步信号占用的时隙。
可选的,当所述传输单元为时隙时,所述第二资源集与所述LTE侧行链路位于同一个载波,所述第二资源集不包括所述LTE侧行链路占用的时隙;或者,
所述第二资源集位于第一载波,所述LTE侧行链路位于第二载波,所述第一载波与所述第二载波位于同一个频带,所述第二资源集不包括所述LTE侧行链路在所述第二载波上占用的时隙。
可选的,当所述传输单元为时隙时,当所述第二资源集与所述LTE蜂窝链路位于同一个载波或同频带的不同载波时,所述下行时隙包括LTE蜂窝链路占用的下行时隙;和/或,
当所述第二资源集与所述NR蜂窝链路位于同一个载波或同频带的不同载波时,所述下行时隙包括NR蜂窝链路占用的下行时隙。
可选的,所述第三资源集中用于第一信道传输的时隙包括第一类时隙和/或第二类时隙,所述第一类时隙为时隙中的所有符号都用于侧行传输的时隙,所述第二类时隙为时隙中的部分符号用于侧行传输的时隙。
可选的,所述第三资源集中的时隙包括上行时隙和/或灵活时隙,其中,所述第三资源集中的上行时隙为所述第一资源集中的上行时隙的子集,所述第三资源集中的灵活时隙为所述第一资源集中的灵活时隙的子集。
可选的,所述第二类时隙为以下时隙中的任意一种:
包括下行符号,以及以下符号中的至少一种符号的时隙:灵活符号、上行符号或侧行符号;
包括上行符号,以及以下符号中的至少一种符号的时隙:灵活符号、或侧行符号;
包括灵活符号,以及以下符号中的至少一种:上行符号或侧行符号。
可选的,下行时隙为时隙中所有符号均用于下行传输的时隙,上行时隙为时隙中所有符号均用于上行传输的时隙,灵活时隙为时隙中所有符号均用于灵活传输的时隙。
本申请第二方面提供一种第一设备,包括:
第一确定模块,用于从第一资源集中确定第二资源集,所述第二资源集不包括所述第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,长期演进LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,所述传输单元包括时隙或者符号;
第二确定模块,用于根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集。
可选的,还包括:
收发模块,用于在所述第三资源集包括的传输资源上发送或接收所述第一信道。
可选的,所述第一确定模块具体用于:
根据所述第二资源集的子载波间隔,从所述第一资源集中确定所述第二资源集。
可选的,所述第一资源集由周期为P1和/或周期为P2的信令指示,其中所述P1和/或P2能被20整除,或者所述P2被配置为3毫秒或4毫秒。
可选的,所述第二资源集中包括预留时隙,所述第三资源集中不包括所述预留时隙。
可选的,所述预留时隙按以下方式中的任意一种方式分布在所述第二资源集中:
所述预留时隙连续地分布在所述第二资源集的尾部的Nr个时隙,其中Nr为所述预留时隙的数量;
所述预留时隙连续地分布在所述第二资源集的头部的Nr个时隙;
所述预留时隙等间隔地分布在所述第二资源集中的Nr个时隙。
可选的,所述第一指示信息为长为L的位图指示信息,所述位图指示信息中的每一个比特位的取值为0或1,所述第二确定模块具体用于:
根据所述L,从所述第二资源集中确定所述预留时隙;
根据所述第一指示信息和所述预留时隙,从所述第二资源集中确定所述第三资源集。
可选的,所述根据所述L,从所述第二资源集中确定所述预留时隙,具体为:
通过以下公式确定所述的第二资源集中包括的预留时隙的个数Nr:
Nr=M mod L;
其中,L为所述位图指示信息的长度,M为所述第二资源集包括的时隙个数;
根据所述预留时隙的个数Nr,确定所述预留时隙的编号。
可选的,所述根据所述预留时隙的个数Nr,确定所述预留时隙的编号,具体为:
根据以下公式确定所述预留时隙的编号r:
r=floor(n*M/Nr),n=0,1,…,Nr-1.
其中,Nr为所述预留时隙的个数,L为所述位图指示信息的长度,floor()表示向下取整,M为所述第二资源集包括的时隙个数。
可选的,所述根据所述预留时隙的个数Nr,确定所述预留时隙的编号,具体为:
根据以下公式确定所述预留时隙的编号r:
r=K*L+n,n=0,1,…,Nr-1;
K=floor(M/L);
其中,Nr为所述预留时隙的个数,L为所述位图指示信息的长度,floor()表示向下取整,M为所述第二资源集包括的时隙个数。
可选的,所述第二资源集还不包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙。
可选的,所述第二资源集中包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙,所述第三资源集中不包括所述上行符号数小于、灵活符号数或侧行符号数第一预设值的时隙。
可选的,所述第一指示信息为长为L的位图指示信息,所述位图指示信息中的每一个比特位的取值为0或1;
所述第二确定模块具体用于:
根据所述位图指示信息,从所述第二资源集中确定比特位取值为1对应的时隙为所述第三资源集中的传输资源。
可选的,所述根据所述位图指示信息,从所述第二资源集中确定比特位取值为1对应的时隙为所述第三资源集中的传输资源,具体为:
当所述第二资源集中包括的时隙的个数M不是所述L的整数倍时,根据所述位图指示信息,从所述第二资源集中被L整除的第一部分资源中确定比特位取值为1对应的时隙为所述第三资源集中的第一传输资源;
根据所述位图指示信息,从所述第二资源集中被L整除后余下的第二部分资源中确定比特位取值为1对应的时隙为所述第三资源集中的第二传输资源。
可选的,所述L为2和/或3和/或4和/或5的整数倍。
可选的,还包括:
第一获取模块,用于在所述第一确定模块确定第二资源集之前,获取第二指示信息,所述第二指示信息用于指示所述第一资源集中的侧行传输资源;
所述第一确定模块具体用于:
根据所述第二指示信息,从所述第一资源集中确定所述第二资源集,所述第二资源集中不包括:所述下行传输单元,所述侧行链路同步传输单元,所述LTE侧行链路占用的传输单元,所述灵活传输单元和所述上行传输单元。
可选的,还包括:
第二获取模块,用于在所述第一确定模块确定第二资源集之前,获取第三指示信息,所述第三指示信息用于指示将所述第一资源集中的全部或者部分灵活符号配置为上行符号和/或侧行符号;
修改模块,用于根据所述第三指示信息,将所述第一资源集中的全部或者部分灵活符号配置为上行符号和/或侧行符号。
可选的,所述第一信道包括以下信道中的至少一种:侧行数据信道,侧行控制信道,侧行反馈信道。
可选的,所述侧行反馈信道的资源以周期N的方式配置在所述第一资源集、所述第二资源集或第三资源集中,其中N为正整数。
可选的,所述侧行反馈信道的资源周期N的取值关联一个资源池,所述资源池属于所述第一资源集、所述第二资源集或第三资源集中的任意一个,所述资源池包括时频资源。
可选的,所述N的不同取值关联的资源池不同;和/或,所述N的不同取值关联的资源池部分重叠。
可选的,较小的所述N值关联的资源池包含较大的N值关联的资源池;或者,较大的N值关联的资源池包含较小的所述N值关联的资源池。
可选的,当所述传输单元为时隙时,所述第二资源集不包括的下行时隙包括:
LTE蜂窝链路占用的下行时隙;和/或,
新无线NR蜂窝链路占用的下行时隙。
可选的,当所述传输单元为时隙时,所述第二资源集不包括的侧行链路同步时隙 包括:
LTE侧行链路的同步信号占用的时隙;和/或,
NR侧行链路同步信号占用的时隙。
可选的,当所述传输单元为时隙时,所述第二资源集与所述LTE侧行链路位于同一个载波,所述第二资源集不包括所述LTE侧行链路占用的时隙;或者,
所述第二资源集位于第一载波,所述LTE侧行链路位于第二载波,所述第一载波与所述第二载波位于同一个频带,所述第二资源集不包括所述LTE侧行链路在所述第二载波上占用的时隙。
可选的,当所述传输单元为时隙时,当所述第二资源集与所述LTE蜂窝链路位于同一个载波或同频带的不同载波时,所述下行时隙包括LTE蜂窝链路占用的下行时隙;和/或,
当所述第二资源集与所述NR蜂窝链路位于同一个载波或同频带的不同载波时,所述下行时隙包括NR蜂窝链路占用的下行时隙。
可选的,所述第三资源集中用于第一信道传输的时隙包括第一类时隙和/或第二类时隙,所述第一类时隙为时隙中的所有符号都用于侧行传输的时隙,所述第二类时隙为时隙中的部分符号用于侧行传输的时隙。
可选的,所述第三资源集中的时隙包括上行时隙和/或灵活时隙,其中,所述第三资源集中的上行时隙为所述第一资源集中的上行时隙的子集,所述第三资源集中的灵活时隙为所述第一资源集中的灵活时隙的子集。
可选的,所述第二类时隙为以下时隙中的任意一种:
包括下行符号,以及以下符号中的至少一种符号的时隙:灵活符号、上行符号或侧行符号;
包括上行符号,以及以下符号中的至少一种符号的时隙:灵活符号、或侧行符号;
包括灵活符号,以及以下符号中的至少一种:上行符号或侧行符号。
可选的,下行时隙为时隙中所有符号均用于下行传输的时隙,上行时隙为时隙中所有符号均用于上行传输的时隙,灵活时隙为时隙中所有符号均用于灵活传输的时隙。
本申请第三方面提供一种第一设备,包括处理器、存储器和收发器,所述存储器用于存储指令,所述收发器用于和其他设备通信,所述处理器用于执行所述存储器中存储的指令,以使所述第一设备执行如本申请第一方面以及可选方式所提供的方法中的任一所述方法。
本申请第四方面提供一种计算机可读存储介质,所述计算机可读存储介质存储有指令,当所述指令被执行时,使得计算机执行如本申请第一方面以及可选方式所提供的方法中的任一所述方法。
本申请第五方面提供一种计算机程序产品,所述计算机程序产品包括指令,当所述指令被执行时,使得计算机执行如本申请第一方面以及可选方式所提供的方法中的任一所述方法。
本申请第六方面提供一种芯片上***或***芯片,所述芯片上***或***芯片可应用于第一设备,所述芯片上***或***芯片包括:至少一个通信接口,至少一个处理器,至少一个存储器,所述通信接口、存储器和处理器通过总线互联,所述处理器 通过执行所述存储器中存储的指令,使得所述第一设备可执行如本申请第一方面以及可选方式所提供的方法中的任一所述方法。
本申请实施例提供的传输资源确定方法和装置,所述方法包括第一设备从第一资源集中确定第二资源集,第二资源集不包括第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,该传输单元包括时隙或者符号,第一设备根据第一指示信息从第二资源集中,确定用于第一信道传输的第三资源集。进而在第三资源集包括的传输资源上发送或接收第一信道,完成侧行数据的传输。该方法能够为终端设备灵活的分配时隙级或者符号级的侧行链路传输资源,使得NR网络中的侧行链路的资源分配更加灵活。
图1为V2X通信场景的一种示意图;
图2为本申请实施例提供的一种通信设备的结构示意图;
图3为本申请实施例一提供的传输资源确定方法的流程图;
图4为从第一资源集到第二资源集的一种变换示意图;
图5为通过位图指示信息指示资源的示意图;
图6为第二资源集中预留时隙的一种分布示意图;
图7为第二资源集中预留时隙的另一种分布示意图;
图8为第二资源集中预留时隙的又一种分布示意图;
图9为本申请实施例二提供的第一设备的结构示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。在本申请中,“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b或c中的至少一项(个),可以表示:a,b,c,a和b,a和c,b和c,或,a和b和c,其中a、b和c可以是单个,也可以是多个。另外,为了便于清楚描述本申请实施例的技术方案,在本申请的实施例中,采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分,本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定。比如,本申请实施例中的第一设备中的“第一”和第二设备中的“第二”仅用于区分不同的设备。
需要说明的是,本申请中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如” 等词旨在以具体方式呈现相关概念。
本申请实施例提供一种传输资源确定方法,该方法应用于图1所示的V2X通信场景中。如图1所示,第一设备和第二设备之间通过侧行链路(Sidelink,SL)通信,侧行链路指的是V2X网络中的辅链路,V2X网络中除了辅链路外,还有上行链路(uplink)以及下行链路(downlink)。
示例性的,V2X通信包括车与车通信(Vehicle-to-Vehicle,V2V)、车与路侧基础设施通信(Vehicle-to-Infrastructure,V2I)、车与人通信(Vehicle to People,V2P),以及车与应用服务器通信(Vehicle-to-Network,V2N)等。图1中仅以第一设备和第二设备均为车的V2V通信为例进行示意,本申请实施例对于V2X的具体通信场景并不进行限定。例如,第一设备和第二设备可以是车载设备与车载设备之间相互通信,也可以是路侧单元(Road Side Unit,RSU)与车载设备和/或网络设备(如基站设备)之间进行通信,还可以是网络设备(如基站设备)与车载设备和/或RSU之间进行通信等,该网络设备可以为LTE基站设备或NR基站设备或后续演进***中的基站。
可以理解的,本申请实施例对于第一设备和第二设备的具体形式并不进行限定,在此仅是示例性说明。示例性的,图1中的无线接入网设备可以是基站,或者是提供无线接入的网络中的设备。该基站可以为LTE中的演进型节点(Long Term Evolution,eNB)或者NR网络中的基站。NR中的基站可以包括:新空口基站(NR nodeB,gNB)、新一代演进型基站(NG-eNB)、中心单元(central unit,CU)和分布式单元(distributed unit,DU)分离形态的gNB等)、收发点(transmission receive point,TRP)、传输点(transmission point,TP)、无线保真(WIreless-Fidelity,WiFi)网络的接入点(access point,AP)或其它节点。
可以理解的,本申请提供的通信方法不仅可以适用于图1所示的侧行链路,也可以用于蜂窝链路中,本申请实施例对于该通信方法适用的场景并不进行限定,在此仅是示例性说明。本申请实施例中的第一设备和第二设备为通信设备,该通信设备可以是终端设备,也可以是网络设备。当第一设备是网络设备时,上述侧行链路可以是基站和基站之间的链路。例如,宏基站和宏基站之间的链路,或者,宏基站和小基站之间的链路,或者,主基站和辅基站之间的链路,或者,主基站和主基站之间的链路,或者,辅基站和辅基站之间的链路等,本申请实施例对此并不进行限定。
图2为本申请实施例提供的一种通信设备,该通信设备可以为本申请中的第一设备或第二设备。该通信设备可以是车辆;也可以是安装在车辆上用于辅助车辆行驶的车载通信装置或者车载终端,或者车载通信装置或车载终端内的芯片。其中,该车载终端可以是用于实现无线通信功能的设备,例如终端或者可用于终端中的芯片等。该车载终端可以是移动的,也可以是固定的。
该通信设备还可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元,车辆通过内置的车载模块、车载模组、车载部件、车载芯片或者车载单元执行本申请实施例的方法。
该通信设备还可以是5G网络或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的用户设备(User Equipment,UE)、接入终端、终端单元、终端站、移动站、移动台、远方站、远程终端、移动设备、无线通 信设备、终端代理或终端装置等。
其中,接入终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字处理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备或可穿戴设备,虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、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)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)中的无线终端等。
如图2所示,该通信设备200包括至少一个处理器201,存储器202、收发器203以及通信总线204。
下面结合图2对该通信设备的各个构成部件进行具体的介绍:
处理器201是通信设备的控制中心,可以是一个处理器,也可以是多个处理元件的统称。例如,处理器201是一个中央处理器(central processing unit,CPU),也可以是特定集成电路(Application Specific Integrated Circuit,ASIC),或者是被配置成实施本申请实施例的一个或多个集成电路,例如:一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)。
其中,处理器201可以通过运行或执行存储在存储器202内的软件程序,以及调用存储在存储器202内的数据,执行通信设备的各种功能。
在具体的实现中,作为一种实施例,处理器201可以包括一个或多个CPU,例如图2中所示的CPU0和CPU1。
在具体实现中,作为一种实施例,通信设备可以包括多个处理器,例如图2中所示的处理器201和处理器205。这些处理器中的每一个可以是一个单核处理器(single-CPU),也可以是一个多核处理器(multi-CPU)。这里的处理器可以指一个或多个通信设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
存储器202可以是只读存储器(read-only memory,ROM)或可存储静态信息和指令的其他类型的静态存储设备,随机存取存储器(random access memory,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,EEPROM)、只读光盘(Compact Disc Read-Only Memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器202可以是独立存在,通过通信总线204与处理器201相连接。存储器202也可以和处理器201集成在一起。
其中,所述存储器202用于存储执行本申请方案的软件程序,并由处理器201来控制执行,以实现下述方法实施例提供的方法。
收发器203,用于与其他通信设备之间进行通信。当然,收发器203还可以用于 与通信网络通信,如以太网,无线接入网(radio access network,RAN),无线局域网(Wireless Local Area Networks,WLAN)等。收发器203可以包括接收单元实现接收功能,以及发送单元实现发送功能。
通信总线204,可以是工业标准体系结构(Industry Standard Architecture,ISA)总线、外部通信设备互连(Peripheral Component,PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture,EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示,图2中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
图2中示出的通信设备结构并不构成对通信设备的限定,可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。
基于上述所述的网络架构,本申请实施例提供一种传输资源确定方法,图3为本申请实施例一提供的传输资源确定方法的流程图,如图3所示,本实施例提供的方法包括以下步骤:
S101、第一设备从第一资源集中确定第二资源集,第二资源集不包括第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号(SideLink Synchronization Signal,SLSS)传输单元,LTE侧行链路占用的传输单元,灵活(flexible)传输单元,上行传输单元,该传输单元包括时隙或者符号。
第一设备参照上述通信场景中对第一设备的定义和可能的实现方式,这里不再赘述。
可选地,在本申请中,侧行链路同步信号传输时还可以包括物理侧行广播信道(Physical Sidelink Broadcast Channel,PSBCH)。相应的,所述侧行链路同步信号传输单元即SLSS和PSBCH占用的传输单元。在本申请实施例中,所述侧行链路同步信号传输单元可以只包括SLSS占用的传输单元,也可以同时包括SLSS和PSBCH占用的传输单元。可选的,SLSS包括2个符号的主同步信号(PSS:Primary Synchronization Signal)和从同步信号(SSS:Secondary Synchronization Signal)。
该第一资源集可以是基站(例如eNB或gNB)和第一设备预先约定好的,也可以是预先为第一设备配置的,还可以是基站通过信令(例如无线资源控制(radio resource control,RRC)信令或***消息(System Information Block,SIB)为第一设备配置的,还可以是做侧行通信的第三设备为第一设备配置的。
该第一资源集可以只包括时域资源,例如,该第一资源集可以为[0,T-1]的子帧集合,T为预设的常数,如30,1024,10240等,本申请对T的取值不做限定。可选的,该第一资源集可以是基站通过周期为P1和/或周期为P2的信令指示的。其中,P1和/或P2能被20整除,或者P2被配置为3毫秒(ms)或4毫秒(ms)。
当然,第一资源集不限于[0,T-1]的子帧集合,也可以为[0,T-1]的子帧集合中的任意一个子集。或者,第一资源集为按一定的时域偏移值对[0,T-1]子帧集合进行偏移得到,该时域偏移值可以由基站通过信令指示或预配置给第一设备的,该时域偏移值可以为一个或者多个子帧或时隙。
可选的,第一资源集不仅包括时域资源,还包括频域资源,例如,第一资源集为某个载波上的[0,T-1]的子帧集合对应的资源,或者,第一资源集包括[0,T-1]的子帧集 合上一定大小和频率位置对应的资源集合,本申请对此不做限定。
本实施例中,第一资源集中的资源包括:下行传输单元、侧行链路同步信号传输单元,LTE侧行链路占用的传输单元,灵活传输单元和上行传输单元,该传输单元为时隙或者符号。
第一资源集中有些资源能够用于NR侧行链路传输,有些资源不能用于NR侧行链路传输,例如,用于下行传输的时隙或者符号不能用于NR侧行链路传输,需要将第一资源集中的下行时隙或者下行符号排除或跳过,或不包括下行时隙。
又如侧行链路同步信号用于同步信号的传输单元,也不能用于NR侧行链路传输,需要从第一资源集中排除侧行链路同步信号传输单元。同理,LTE侧行链路占用的传输也不能用于NR侧行链路传输,因此,也需要将LTE侧行链路占用的传输单元从第一资源集中排除。
灵活时隙或者灵活符号即能用于上行传输也能用于下行传输,因此,灵活时隙或者灵活符号可以排除,也可以不排除。可选地,是否排除灵活时隙或者灵活符号取决于配置信息的指示。例如,基站可以发送配置信息指示灵活时隙的全部或部分用于侧行传输,也可以指示灵活时隙的全部或部分不用于侧行传输。
可选地,在本申请中,侧行链路的传输资源可以只在侧行时隙或符号上,或在上行符号或时隙上,或在灵活时隙或符号上,或同时在灵活符号、上行符号和侧行符号/时隙中的两种或三种上,本申请对此不做限定。
图4为从第一资源集到第二资源集的一种变换示意图,如图4所示,第一资源集包括30个时隙,编号为0-29,其中,标注有D的时隙为下行时隙,标注有U的时隙为上行时隙,标注有F的时隙为灵活时隙或灵活符号。
如图4所示,需要将第一资源集中的所有下行时隙、灵活时隙和SLSS传输时隙排除。图4中下行时隙为编号为0、5、10、15、25的时隙,灵活时隙为编号为1、6、16、21、26,SLSS传输时隙的编号为9。
将第一资源集中的所有下行时隙、灵活时隙和SLSS时隙排除后剩余17个上行时隙,该17个上行时隙组成第二资源集,图4中第二资源集的上方的编号为第二资源集中的时隙的实际物理编号,图4中第二资源集下方0-16的编号为第二资源集中的时隙的逻辑编号,逻辑编号只是为了方便说明而定义的编号,并不够成对本申请的限定。
图4所示例子中,将第一资源集中的灵活时隙排除了,得到的第二资源集中只包括上行时隙。可选的,在申请可能的实现方式中,不将第一资源集中的灵活时隙或灵活符号排除,得到的第二资源集中包括上行时隙和灵活时隙。
可选的,本实施例中,下行时隙为时隙中所有符号均用于下行传输的时隙,上行时隙为时隙中所有符号均用于上行传输的时隙,灵活时隙为时隙中所有符号均用于灵活传输的时隙。
或者,下行时隙为时隙中部分符号用于下行传输的时隙,上行时隙为时隙中部分符号用于上行传输的时隙,灵活时隙为时隙中部分符号用于灵活传输的时隙。
本实施例的方法可以应用在LTE和NR共存的场景,也可以单独应用在NR场景中。例如,在NR场景中,第一资源集中的部分资源用于蜂窝链路(Uu link),另一部分资源用于NR-V2X的侧行链路。当本实施例的方法应用在LTE和NR共存的场景 中时,以传输单元为时隙为例,则:
不能用于NR侧行链路传输的下行时隙包括LTE蜂窝链路(LTE Uu link)占用的时隙,和/或,NR蜂窝链路(NR Uu link)占用的时隙。其中,蜂窝链路是指UE和网络设备之间进行通信的链路,包括上行链路和/或下行链路。侧行链路是指UE和UE之间进行通信的链路。
不能用于NR侧行链路传输的SLSS时隙包括LTE侧行链路的同步信号占用的时隙,和/或,NR侧行链路同步信号占用的时隙。
可选的,本申请中,第一资源集配置在一个载波上,该载波同时能够用于蜂窝链路和侧行链路的传输。或者,第一资源集配置在一个载波上,该载波只用于侧行链路的传输。
可选的,第一设备根据第二资源集和/或第三资源集的子载波间隔(Subcarrier space,SCS),从第一资源集中确定第二资源集。NR支持不同类型的SCS,如15kHz,30kHz,60kHz,120kHz,240kHz。在第二资源集中确定第一资源集时,需要根据NR的SCS来确定的第二资源集。
这是因为,在NR中时隙的长度会因为SCS的不同有所不同,一般情况下随着子载波间隔变大,时隙长度变小。可选的,子帧的时间长度固定定义成1ms。例如,当SCS为15kHz时,一个时隙的长度为1ms,即时隙长度等于子帧长度。当SCS为30kHz时,一个子帧的长度仍然是1ms,此时,一个时隙的长度变为0.5ms,一个子帧包括两个时隙。当SCS为60kHz时,一个时隙的长度变为0.25ms,一个子帧中包括4个时隙。
由于不同的SCS取值下,时隙的大小以及在一个子帧内的可能位置不同,而第一资源集可能以子帧的方式配置给第一设备,第一设备在确定第二资源集时,需要根据SCS,确定第一资源集中的哪些时隙不能用于NR侧行链路传输。
本实施例中,从第一资源集中排除不能用于NR侧行链路传输的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,长期演进LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,得到第二资源集。
可选的,第二资源集还不包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙。相应的,第一设备需要从第一资源集中排除上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙。可选的,第一预设值可以是信令配置的,也可以是预定义的,例如,第一预设值为3或4。
在现有的LTE或NR中,一个时隙中包括的符号数为12或14。在本申请中,如果某个时隙中用于上行传输的上行符号数小于第一预设值,则该时隙不能用于NR侧行链路传输,相应的,第一设备从第一资源集中排除上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙。
相应的,如果一个时隙中除了上行符号、灵活符号或侧行符号之外,还包括其他符号,但是该时隙中包括的上行符号数、灵活符号数或侧行符号数大于或等于第一预设值,则该时隙能够用于NR侧行链路传输。
该第一预设值不小于3,例如为3或4,但不限于3或4。仍以上行符号为例,在一个时隙中只有两个上行符号,其余符号均不能用于侧行链路传输,则将该时隙确定 为不能用于NR侧行链路传输。如果该时隙中有5个上行符号,其余符号均不能用于侧行链路传输,则该时隙能够用于NR侧行链路传输。其原因是,侧行链路传输时,需要有用于做自动增益控制或收发转换的符号,这些符号本身不能用于传输,因此,将第一预设值设置为至少不小于3。
可选的,不同的反馈信道格式,对应的第一预设值不同。例如:当侧行时隙用于传输反馈信道时,不同的反馈信道格式有不同的第一预设值。例如,对于长反馈信道,则有更大的第一预设值,如4,5,6;对于短反馈信道,则有更小的第一预设值,如3,4等。可选的长反馈信道在时域上比短反馈信道有更多的时域符号。
可选的,不同的子载波间隔,有不同的第一预设值。其原因是大的子载波间隔需要更多的用于做自动增益控制的符号。
可选的,该第二资源集与LTE侧行链路位于同一个载波,或者,第二资源集与LTE侧行链路位于同一频带的不同载波,或者,第二资源集与LTE蜂窝链路位于同一个载波或同频带的不同载波,或者,第二资源集与NR蜂窝链路位于同一个载波或同频带的不同载波。
当第二资源集与LTE侧行链路位于同一个载波时,第二资源集不包括LTE侧行链路占用的时隙。
当第二资源集与LTE侧行链路位于同一频带的不同载波时,例如,第二资源集位于第一载波,LTE侧行链路位于第二载波,第一载波与第二载波位于同一个频带,第二资源集不包括LTE侧行链路在第二载波上占用的时隙。
当第二资源集与LTE蜂窝链路位于同一个载波或同频带的不同载波时,该第二资源集中不包括LTE蜂窝链路占用的下行时隙。
当第二资源集与NR蜂窝链路位于同一个载波或同频带的不同载波时,该第二资源集中不包括NR蜂窝链路占用的下行时隙。
可选的,第一设备从第一资源集中确定第二资源集之前,还包括:第一设备获取第二指示信息,第二指示信息用于指示第一资源集中的侧行传输资源,相应的,第一设备从第一资源集中确定第二资源集,具体为:
第一设备根据第二指示信息,从第一资源集中确定第二资源集,第二资源集中不包括:下行传输单元,侧行链路同步传输单元,LTE侧行链路占用的传输单元,灵活传输单元和上行传输单元。该第二指示信息可以是基站通过专用信令发送给第一设备的。
当基站通过专用信令指示第一设备,第一资源集中的哪些资源用于NR侧行链路传输时,第一设备根据第二指示信息,从第一资源集不包括以下资源中的所有资源:下行传输单元,侧行链路同步传输单元,LTE侧行链路占用的传输单元,灵活传输单元和上行传输单元,得到第二资源集。
可选的,第一设备从第一资源集中确定第二资源集之前,还包括:第一设备获取第三指示信息,该第三指示信息用于指示将第一资源集中的全部或者部分灵活符号配置为上行符号和/或侧行符号。该第三指示信息可以是基站通过专用信令发送给第一设备的。
第一设备根据第三指示信息,将第一资源集中的全部或者部分灵活符号配置为上 行符号和/或侧行符号。第三指示信息具体可以指示以下几种情况:
第三指示信息指示将第一资源集中的全部灵活符号修改为上行符号或侧行符号,侧行符号即用于侧行链路传输的符号。
第三指示信息指示将第一资源集中的全部灵活符号修改为上行符号和侧行符号,具体将第一资源集中的哪些灵活符号修改为上行符号,哪些灵活符号修改侧行符号,本实施例不对此进行限制,可以根据实际需求进行任意配置。
例如,第三指示信息指示将第一资源集中编号为偶数的子帧上的灵活符号修改为上行符号,将第一资源集中编号为奇数的子帧上的灵活符号修改为侧行符号。或者,第三指示信息指示将编号为0-AAAA的子帧上的灵活符号修改为上行符号,将AAAA-10240上的灵活符号修改为侧行符号。本申请对此不做限定。
第三指示信息指示将第一资源集中的部分灵活符号修改为上行符号或侧行符号,该方式中,需要指示将哪些灵活符号修改上行符号或者侧行符号,例如,指示将编号为0-5的符号修改为上行符号或者侧行符号。或者,指示间隔一个或者多个灵活符号将剩余灵活符号修改为上行符号或者侧行符号。
第三指示信息指示将第一资源集中的部分灵活符号修改为上行符号和侧行符号,将该部分灵活符号中的哪些灵活符号修改为上行符号,哪些灵活符号修改侧行符号,本实施例不对此进行限制,可以根据实际需求进行任意配置。
第一设备根据第三指示信息对第一资源集中的资源类型进行修改之后,第一设备根据第一资源集确定第二资源集时,需要从第一资源集中排除的不能用于NR侧行链路传输的资源相应发生了变化。例如,第三指示信息指示将第一资源集中的全部灵活符号修改为上行符号或侧行符号,则第一资源集中不存在灵活符号,第一设备从第一资源集中确定第二资源集时,不需要排除灵活符号。
本实施例中,还可以将第一资源集中的部分上行时隙排除,基站可以通过信令指示第一设备哪些上行时隙不能用于侧行链路传输,例如,通过第四指示信息指示编号为12的上行时隙不能用于侧行链路传输。则第一设备根据该第四指示信息从第一资源集中排除不能用于侧行链路传输的上行时隙。
S102、第一设备根据第一指示信息从第二资源集中,确定用于第一信道传输的第三资源集。
一种实现方式中,第一指示信息可以为长为L的位图指示信息(bitmap),位图指示信息中的每一个比特位的取值为0或1。其中,L的取值可以为2和/或3和/或4和/或5的整数倍。例如:L可以取值为3,4,5,12,15,20,30,60,80,100等。例如,L的取值为5,则位图指示信息可以为11010,其中,比特位1的对应的子帧或时隙能够用于侧行链路传输,比特位0对应的子帧或时隙不能用于侧行链路传输。
一种实现方式中,在得到第二资源集之后,第一设备根据位图指示信息,从第二资源集中确定比特位取值为1对应的时隙为第三资源集中的传输资源。
图5为通过位图指示信息指示资源的示意图,如图5所示,假设第二资源集中包括共包括15个时隙,逻辑编号为0-14,L的取值为5,位置指示信息为11010,则将第二资源集与第一位图指示信息进行匹配,在匹配时位图指示信息在时域上重复,通过匹配可以得到逻辑编号为0、1、3、5、6、8、10、11、13、15的时隙构成第三资源 集。进一步的,找到逻辑编号为0、1、3、5、6、8、10、11、13、15对应的物理编号,即可得到第三资源集。
可选的,该第一指示信息包括第一信息和第二信息,其中,第一信息用于指示第二资源集中的哪些子帧能够用于第一信道传输,第二信息用于指示第二资源集中能够用于第一信道传输的子帧中的哪些时隙能够用于第一信道传输。
可选的,第二资源集中还包括预留时隙,第三资源集中不包括该预留时隙,该预留时隙可以为上行时隙。第一设备需要从第二资源集中排除预留时隙,第一设备在将第一指示信息与第二资源集进行匹配之前,从第二资源集中排除预留时隙。
可选的,预留时隙可以按以下方式中的任意一种方式分布在第二资源集中:
预留时隙连续地分布在第二资源集的尾部的Nr个时隙,其中Nr为预留时隙的数量;
预留时隙连续地分布在第二资源集的头部的Nr个时隙;
预留时隙等间隔地分布在第二资源集中的Nr个时隙,其中,该间隔可以配置,例如,间隔5个或10个时隙。
其中,Nr预留时隙的数量Nr可以由预先配置好,例如,基站配置预留时隙的数量Nr为一个固定值3、4或5。预留时隙的分布方式也可以由基站预先配置好。
以图4所示得到的第二资源集为例,假设基站配置了预留时隙的数量为2个,预留时隙的分布方式为等间隔分布。则预留时隙的位置为图6所示,即取第二资源集的第1个时隙(即逻辑编号为0、物理编号为2的时隙)为预留时隙,预留时隙的间隔为7个时隙,则第二资源集中的第9个时隙(即逻辑编号为8、物理编号为17的时隙)为预留时隙。
可选的,预留时隙的数量Nr可以由第一设备确定,示例性的,第一设备根据位图指示信息的长度L,从第二资源集中确定预留时隙,其中,从第二资源集中确定预留时隙包括确定预留时隙的个数和预留时隙的编号。
示例性的,第一设备通过以下公式确定的第二资源集中包括的预留时隙的个数Nr:
Nr=M mod L;
其中,L为位图指示信息的长度,M为第二资源集包括的时隙个数,mod表示取余运算。假设M为17,L为5,17除以5等于3余2,则预留时隙的个数Nr为2。
第一设备在根据位图指示信息的长度L,确定预留时隙的数量Nr之后,第一设备根据预留时隙的个数Nr,确定预留时隙的编号。
一种实现方式中,第一设备根据以下公式确定预留时隙的编号r:
r=floor(n*M/Nr),n=0,1,…,Nr-1.
其中,Nr为预留时隙的个数,L为位图指示信息的长度,floor()表示向下取整,M为第二资源集包括的时隙个数,n为中间变量,为整数。
假设M为17,L为5,Nr为2,则第一个预留时隙的编号为floor(0*17/2)=0,第二个预留时隙的编号为floor(1*17/2)=8,即第一预留时隙的编号为0,第二个预留时隙的编号为8。
该方式相当于预留时隙间隔性地(或者说分布式)分布在第二资源集中。
另一种实现方式中,第一设备根据以下公式确定预留时隙的编号r:
r=K*L+n,n=0,1,…,Nr-1;
K=floor(M/L);
其中,Nr为预留时隙的个数,L为位图指示信息的长度,floor()表示向下取整,M为第二资源集包括的时隙个数,n为中间变量,为整数。
该方式相当于预留时隙连续地(或者说集中式)分布在第二资源集中。假设M为17,L为5,Nr为2,则第一个预留时隙的编号为:K=floor(17/5)=3,r=3*5+0=15,第二个预留时隙的编号为:r=3*5+1=16,即第一预留时隙的编号为15,第二个预留时隙的编号为16。图7为第二资源集中预留时隙的另一种分布示意图,如图7所示,第二资源集为以图4所示方式得到的第二资源集,预留时隙连续地分布在第二资源集尾部。
第一设备在确定预留时隙的个数和编号之后,将预留时隙从第二资源集中排除掉,从剩余的第二资源集中确定第三资源集。
可选的,第一设备在通过上述公式确定的第二资源集中包括的预留时隙的个数Nr之后,也可以按照基站配置的预留时隙的分布方式确定预留时隙的编号。例如,预留时隙的分布方式为预留时隙连续地分布在第二资源集的尾部,则确定预留时隙的编号为第二资源集尾部的Nr个时隙的编号,如果预留时隙的分布方式为预留时隙连续的分布在第二资源集的头部,则确定预留时隙编号为第二资源集头部的Nr个时隙的编号。
图8为第二资源集中预留时隙的又一种分布示意图,如图8所示,第二资源集为以图4所示方式得到的第二资源集,预留时隙连读的分布在第二资源集的头部。
可选的,去掉预留时隙后的第二资源集中时隙个数能够被L整除,而没有去掉预留时隙的第二资源集中时隙个数不能被L整除。当然,可选地,去掉预留时隙后的第二资源集中时隙个数也可能不能被L整除。
当第二资源集(可能是去掉预留时隙后的,也可能是没有去掉预留时隙后的)中包括的时隙的个数M不是L的整数倍时,根据位图指示信息,从第二资源集中被L整除的第一部分资源中确定比特位取值为1对应的时隙为第三资源集中的第一传输资源,根据位图指示信息,从第二资源集中被L整除后余下的第二部分资源中确定比特位取值为1对应的时隙为第三资源集中的第二传输资源。
示例性的,当M为17,L为5时,第二资源集中被L整除的第一部分资源为编号0-14的时隙,共15个时隙;第二资源集中被L整除后余下的第二部分资源为编号为15-16的时隙,共2个时隙。假设位图指示信息为11010,则第一设备将位图指示信息与第一部分资源进行匹配,得到第一传输资源,同样,将位图指示信息与第二部分资源进行匹配,得到第二传输资源。由于第二部分资源只有2个时隙,而位图指示信息长度为5,则取位图指示信息的前2位与第二部分资源进行匹配,得到第二传输资源。
可选的,该第二资源集中包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙,第三资源集中不包括上行符号数小于、灵活符号数或侧行符号数第一预设值的时隙。相应的,第一设备需要从第二资源集中排除上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙,然后根据第一指示信息从第二资源集中,确定用于第一信道传输的第三资源集。
可选的,第一信道包括以下信道中的至少一种:侧行数据信道,侧行控制信道,侧行反馈信道。侧行数据信道用于传输用户数据,侧行控制信道用于传输控制控制信令,侧行反馈信道用于传输反馈信息(例如ACK或NACK)。
可选的,该侧行反馈信道的资源以周期N的方式配置在第一资源集、第二资源集或第三资源集中,其中N为正整数。
可选的,在每个用于反馈的时隙中,反馈资源在时隙中的长度也是可以通过配置信息获取的。这里的配置信息可以是基站发送的或预配置给第一设备的或第三设备发送的。
可选的,该侧行反馈信道的资源周期N的取值关联一个资源池,该资源池属于第一资源集、第二资源集或第三资源集中的任意一个,该资源池包括时频资源。从时域上看,该侧行反馈信道的资源以周期N的方式出现,不同N的取值关联的资源池占用的频域资源可能不同。
可选的,N的不同取值关联的资源池不同;和/或,N的不同取值关联的资源池部分重叠。
其中,N的不同取值关联的资源池不同可以包括以下几种情况:
(1)N的不同取值关联的资源池在时域上的资源不同,但是频域上的资源相同。
例如,当N的取值为4时,N关联的资源池占用的时域资源为子帧2-5号子帧,当N的取值为1时,N关联的资源池占用的时域资源为子帧6-9号子帧,当N的取值为4和1时,N关联的资源池占用的频域资源均为第一载波。
(2)N的不同取值关联的资源池在时域上的资源相同,但是频域上的资源相同不同。
例如,当N的取值为4时,N关联的资源池占用的频域资源为第一载波,当N的取值为1时,N关联的资源池占用的频域资源为第二载波或第一载波中的不同物理资源块或子信道,当N的取值为4和1时,N关联的资源池占用的时域资源均为2-5号子帧。
(3)N的不同取值关联的资源池在时域和频域上均不相同。
例如,当N的取值为4时,N关联的资源池占用的频域资源为第一载波,N关联的资源池占用的时域资源为子帧2-5号子帧,当N的取值为3时,N关联的资源池占用的频域资源为第二载波,N关联的资源池占用的时域资源为子帧6-9号子帧。
N的不同取值关联的资源池部分重叠是指:N的不同取值关联的资源池在时域和频域上均存在部分重叠。
例如,当N的取值为4和1时,N关联的资源池占用的频域资源均为第一载波,当N的取值为1时,N关联的资源池占用的时域资源均为2-5号子帧,当N的取值为1时,N关联的资源池占用的时域资源均为4-7号子帧。
可选的,较小的N值关联的资源池包含较大的N值关联的资源池;或者,较大的N值关联的资源池包含较小的N值关联的资源池。
可选的,根据第二资源集得到的第三资源集中用于第一信道传输的时隙包括两类时隙:第一类时隙和第二类时隙,第一类时隙为时隙中的所有符号都用于侧行传输的时隙,第二类时隙为时隙中的部分符号用于侧行传输的时隙。
其中,第二类时隙为以下时隙中的任意一种:
包括下行符号,以及以下符号中的至少一种符号的时隙:灵活符号、上行符号或侧行符号;
包括上行符号,以及以下符号中的至少一种符号的时隙:灵活符号、或侧行符号;
包括灵活符号,以及以下符号中的至少一种:上行符号或侧行符号。
在实际应用中,也可以存在第三资源集中只包括第一类时隙或第二类时隙的情况。
从时隙类型来说,第三资源集中的时隙可以包括上行时隙和/或灵活时隙,其中,第三资源集中的上行时隙为第一资源集中的上行时隙的子集,第三资源集中的灵活时隙为第一资源集中的灵活时隙的子集。
S103、第一设备在第三资源集包括的传输资源上发送或接收第一信道。
步骤S103为可选步骤,在获取到第二资源集之后,第一设备可以使用第三资源集中的资源向第二设备发送第一信道,或者接收第二设备发送的第一信道,从而完成数据传输,也可以使用第三资源集进行其他操作。
本实施例中,第一设备从第一资源集中确定第二资源集,第二资源集不包括第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,该传输单元包括时隙或者符号,第一设备根据第一指示信息从第二资源集中,确定用于第一信道传输的第三资源集。进而在第三资源集包括的传输资源上发送或接收第一信道,完成侧行数据的传输。该方法能够为终端设备灵活的分配时隙级或者符号级的侧行链路传输资源,使得NR网络中的侧行链路的资源分配更加灵活。
图9为本申请实施例二提供的第一设备的结构示意图,如图9所示,本实施例提供的第一设备包括:
第一确定模块11,用于从第一资源集中确定第二资源集,所述第二资源集不包括所述第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,长期演进LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,所述传输单元包括时隙或者符号;
第二确定模块12,用于根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集。
可选的,还包括:
收发模块13,用于在所述第三资源集包括的传输资源上发送或接收所述第一信道。
可选的,所述第一确定模块11具体用于:
根据所述第二资源集的子载波间隔,从所述第一资源集中确定所述第二资源集。
可选的,所述第一资源集由周期为P1和/或周期为P2的信令指示,其中所述P1和/或P2能被20整除,或者所述P2被配置为3毫秒或4毫秒。
可选的,所述第二资源集中包括预留时隙,所述第三资源集中不包括所述预留时隙。
可选的,所述预留时隙按以下方式中的任意一种方式分布在所述第二资源集中:
所述预留时隙连续地分布在所述第二资源集的尾部的Nr个时隙,其中Nr为所述预留时隙的数量;
所述预留时隙连续地分布在所述第二资源集的头部的Nr个时隙;
所述预留时隙等间隔地分布在所述第二资源集中的Nr个时隙。
可选的,所述第一指示信息为长为L的位图指示信息,所述位图指示信息中的每一个比特位的取值为0或1,所述第二确定模块12具体用于:
根据所述L,从所述第二资源集中确定所述预留时隙;
根据所述第一指示信息和所述预留时隙,从所述第二资源集中确定所述第三资源集。
可选的,所述根据所述L,从所述第二资源集中确定所述预留时隙,具体为:
通过以下公式确定所述的第二资源集中包括的预留时隙的个数Nr:
Nr=M mod L;
其中,L为所述位图指示信息的长度,M为所述第二资源集包括的时隙个数;
根据所述预留时隙的个数Nr,确定所述预留时隙的编号。
可选的,所述根据所述预留时隙的个数Nr,确定所述预留时隙的编号,具体为:
根据以下公式确定所述预留时隙的编号r:
r=floor(n*M/Nr),n=0,1,…,Nr-1.
其中,Nr为所述预留时隙的个数,L为所述位图指示信息的长度,floor()表示向下取整,M为所述第二资源集包括的时隙个数。
可选的,所述根据所述预留时隙的个数Nr,确定所述预留时隙的编号,具体为:
根据以下公式确定所述预留时隙的编号r:
r=K*L+n,n=0,1,…,Nr-1;
K=floor(M/L);
其中,Nr为所述预留时隙的个数,L为所述位图指示信息的长度,floor()表示向下取整,M为所述第二资源集包括的时隙个数。
可选的,所述第二资源集还不包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙。
可选的,所述第二资源集中包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙,所述第三资源集中不包括所述上行符号数小于、灵活符号数或侧行符号数第一预设值的时隙。
可选的,所述第一指示信息为长为L的位图指示信息,所述位图指示信息中的每一个比特位的取值为0或1;
所述第二确定模块具体用于:
根据所述位图指示信息,从所述第二资源集中确定比特位取值为1对应的时隙为所述第三资源集中的传输资源。
可选的,所述根据所述位图指示信息,从所述第二资源集中确定比特位取值为1对应的时隙为所述第三资源集中的传输资源,具体为:
当所述第二资源集中包括的时隙的个数M不是所述L的整数倍时,根据所述位图指示信息,从所述第二资源集中被L整除的第一部分资源中确定比特位取值为1对应的时隙为所述第三资源集中的第一传输资源;
根据所述位图指示信息,从所述第二资源集中被L整除后余下的第二部分资源中 确定比特位取值为1对应的时隙为所述第三资源集中的第二传输资源。
可选的,所述L为2和/或3和/或4和/或5的整数倍。
可选的,还包括:
第一获取模块,用于在所述第一确定模块确定第二资源集之前,获取第二指示信息,所述第二指示信息用于指示所述第一资源集中的侧行传输资源;
所述第一确定模块11具体用于:
根据所述第二指示信息,从所述第一资源集中确定所述第二资源集,所述第二资源集中不包括:所述下行传输单元,所述侧行链路同步传输单元,所述LTE侧行链路占用的传输单元,所述灵活传输单元和所述上行传输单元。
可选的,还包括:
第二获取模块,用于在所述第一确定模块确定第二资源集之前,获取第三指示信息,所述第三指示信息用于指示将所述第一资源集中的全部或者部分灵活符号配置为上行符号和/或侧行符号;
修改模块,用于根据所述第三指示信息,将所述第一资源集中的全部或者部分灵活符号配置为上行符号和/或侧行符号。
可选的,所述第一信道包括以下信道中的至少一种:侧行数据信道,侧行控制信道,侧行反馈信道。
可选的,所述侧行反馈信道的资源以周期N的方式配置在所述第一资源集、所述第二资源集或第三资源集中,其中N为正整数。
可选的,所述侧行反馈信道的资源周期N的取值关联一个资源池,所述资源池属于所述第一资源集、所述第二资源集或第三资源集中的任意一个,所述资源池包括时频资源。
可选的,所述N的不同取值关联的资源池不同;和/或,所述N的不同取值关联的资源池部分重叠。
可选的,较小的所述N值关联的资源池包含较大的N值关联的资源池;或者,较大的N值关联的资源池包含较小的所述N值关联的资源池。
可选的,当所述传输单元为时隙时,所述第二资源集不包括的下行时隙包括:
LTE蜂窝链路占用的下行时隙;和/或,
新无线NR蜂窝链路占用的下行时隙。
可选的,当所述传输单元为时隙时,所述第二资源集不包括的侧行链路同步时隙包括:
LTE侧行链路的同步信号占用的时隙;和/或,
NR侧行链路同步信号占用的时隙。
可选的,当所述传输单元为时隙时,所述第二资源集与所述LTE侧行链路位于同一个载波,所述第二资源集不包括所述LTE侧行链路占用的时隙;或者,
所述第二资源集位于第一载波,所述LTE侧行链路位于第二载波,所述第一载波与所述第二载波位于同一个频带,所述第二资源集不包括所述LTE侧行链路在所述第二载波上占用的时隙。
可选的,当所述传输单元为时隙时,当所述第二资源集与所述LTE蜂窝链路位于 同一个载波或同频带的不同载波时,所述下行时隙包括LTE蜂窝链路占用的下行时隙;和/或,
当所述第二资源集与所述NR蜂窝链路位于同一个载波或同频带的不同载波时,所述下行时隙包括NR蜂窝链路占用的下行时隙。
可选的,所述第三资源集中用于第一信道传输的时隙包括第一类时隙和/或第二类时隙,所述第一类时隙为时隙中的所有符号都用于侧行传输的时隙,所述第二类时隙为时隙中的部分符号用于侧行传输的时隙。
可选的,所述第三资源集中的时隙包括上行时隙和/或灵活时隙,其中,所述第三资源集中的上行时隙为所述第一资源集中的上行时隙的子集,所述第三资源集中的灵活时隙为所述第一资源集中的灵活时隙的子集。
可选的,所述第二类时隙为以下时隙中的任意一种:
包括下行符号,以及以下符号中的至少一种符号的时隙:灵活符号、上行符号或侧行符号;
包括上行符号,以及以下符号中的至少一种符号的时隙:灵活符号、或侧行符号;
包括灵活符号,以及以下符号中的至少一种:上行符号或侧行符号。
可选的,下行时隙为时隙中所有符号均用于下行传输的时隙,上行时隙为时隙中所有符号均用于上行传输的时隙,灵活时隙为时隙中所有符号均用于灵活传输的时隙。
本申请实施例四提供一种计算机可读存储介质,所述计算机可读存储介质存储有指令,当所述指令被执行时,使得计算机执行如上述实施例一所述的方法,具体实现方式和技术效果类似,这里不再赘述。
可以理解,本申请实施例中第一设备使用的处理器可以是中央处理器(CPU),通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC),现场可编程门阵列(FPGA)或者其他可编程逻辑器件、晶体管逻辑器件,硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。所述处理器也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。
本申请实施例所述的总线可以是工业标准体系结构(Industry Standard Architecture,ISA)总线、外部设备互连(Peripheral Component,PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture,EISA)总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示,本申请附图中的总线并不限定仅有一根总线或一种类型的总线。
在本申请所提供的几个实施例中,应该理解到,所揭露的装置和方法,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***,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。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元,可以存储在一个计算机可读取存储介质中。上述软件功能单元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)或处理器(processor)执行本申请各个实施例所述方法的部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
Claims (28)
- 一种传输资源确定方法,其特征在于,包括:第一设备从第一资源集中确定第二资源集,所述第二资源集不包括所述第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,长期演进LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,所述传输单元包括时隙或者符号;所述第一设备根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集。
- 根据权利要求1所述的方法,其特征在于,还包括:所述第一设备在所述第三资源集包括的传输资源上发送或接收所述第一信道。
- 根据权利要求1或2所述的方法,其特征在于,所述第一设备从第一资源集中确定第二资源集,包括:所述第一设备根据所述第二资源集的子载波间隔,从所述第一资源集中确定所述第二资源集。
- 根据权利要求1-3任意一项所述的方法,其特征在于,所述第二资源集中包括预留时隙,所述第三资源集中不包括所述预留时隙。
- 根据权利要求4所述的方法,其特征在于,所述预留时隙按以下方式中的任意一种方式分布在所述第二资源集中:所述预留时隙连续地分布在所述第二资源集的尾部的Nr个时隙,其中Nr为所述预留时隙的数量;所述预留时隙连续地分布在所述第二资源集的头部的Nr个时隙;所述预留时隙等间隔地分布在所述第二资源集中的Nr个时隙。
- 根据权利要求4或5所述的方法,其特征在于,所述第一指示信息为长为L的位图指示信息,所述位图指示信息中的每一个比特位的取值为0或1,所述第一设备根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集,包括:所述第一设备根据所述L,从所述第二资源集中确定所述预留时隙;所述第一设备根据所述第一指示信息和所述预留时隙,从所述第二资源集中确定所述第三资源集。
- 根据权利要求6所述的方法,其特征在于,所述第一设备根据所述L,从所述第二资源集中确定所述预留时隙,包括:所述第一设备通过以下公式确定所述的第二资源集中包括的预留时隙的个数Nr:Nr=M mod L;其中,L为所述位图指示信息的长度,M为所述第二资源集包括的时隙个数;所述第一设备根据所述预留时隙的个数Nr,确定所述预留时隙的编号。
- 根据权利要求7所述的方法,其特征在于,所述第一设备根据所述预留时隙的个数Nr,确定所述预留时隙的编号,包括:所述第一设备根据以下公式确定所述预留时隙的编号r:r=floor(n*M/Nr),n=0,1,…,Nr-1.其中,Nr为所述预留时隙的个数,L为所述位图指示信息的长度,floor()表示向下取整,M为所述第二资源集包括的时隙个数。
- 根据权利要求7所述的方法,其特征在于,所述第一设备根据所述预留时隙的个数Nr,确定所述预留时隙的编号,包括:所述第一设备根据以下公式确定所述预留时隙的编号r:r=K*L+n,n=0,1,…,Nr-1;K=floor(M/L);其中,Nr为所述预留时隙的个数,L为所述位图指示信息的长度,floor()表示向下取整,M为所述第二资源集包括的时隙个数。
- 根据权利要求1-9任一项所述的方法,其特征在于,所述第二资源集还不包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙。
- 根据权利要求1-9任一项所述的方法,其特征在于,所述第二资源集中包括上行符号数、灵活符号数或侧行符号数小于第一预设值的时隙,所述第三资源集中不包括所述上行符号数小于、灵活符号数或侧行符号数第一预设值的时隙。
- 根据权利要求1-11任一项所述的方法,其特征在于,所述第一指示信息为长为L的位图指示信息,所述位图指示信息中的每一个比特位的取值为0或1;所述第一设备根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集,包括:所述第一设备根据所述位图指示信息,从所述第二资源集中确定比特位取值为1对应的时隙为所述第三资源集中的传输资源。
- 根据权利要求12所述的方法,其特征在于,所述第一设备根据所述位图指示信息,从所述第二资源集中确定比特位取值为1对应的时隙为所述第三资源集中的传输资源,包括:当所述第二资源集中包括的时隙的个数M不是所述L的整数倍时,根据所述位图指示信息,从所述第二资源集中被L整除的第一部分资源中确定比特位取值为1对应的时隙为所述第三资源集中的第一传输资源;根据所述位图指示信息,从所述第二资源集中被L整除后余下的第二部分资源中确定比特位取值为1对应的时隙为所述第三资源集中的第二传输资源。
- 根据权利要求1-13中任意一项所述的方法,其特征在于,所述第一设备从第一资源集中确定第二资源集之前,还包括:所述第一设备获取第二指示信息,所述第二指示信息用于指示所述第一资源集中的侧行传输资源;所述第一设备从第一资源集中确定第二资源集,包括:所述第一设备根据所述第二指示信息,从所述第一资源集中确定所述第二资源集,所述第二资源集中不包括:所述下行传输单元,所述侧行链路同步传输单元,所述LTE侧行链路占用的传输单元,所述灵活传输单元和所述上行传输单元。
- 根据权利要求1-13中任意一项所述的方法,其特征在于,所述第一设备从第一资源集中确定第二资源集之前,还包括:所述第一设备获取第三指示信息,所述第三指示信息用于指示将所述第一资源集 中的全部或者部分灵活符号配置为上行符号和/或侧行符号;所述第一设备根据所述第三指示信息,将所述第一资源集中的全部或者部分灵活符号配置为上行符号和/或侧行符号。
- 根据权利要求1-15中任意一项所述的方法,其特征在于,所述第一信道包括以下信道中的至少一种:侧行数据信道,侧行控制信道,侧行反馈信道。
- 根据权利要求16所述的方法,其特征在于,所述侧行反馈信道的资源以周期N的方式配置在所述第一资源集、所述第二资源集或第三资源集中,其中N为正整数。
- 根据权利要求1-17任一项所述的方法,其特征在于,当所述传输单元为时隙时,所述第二资源集不包括的下行时隙包括:LTE蜂窝链路占用的下行时隙;和/或,新无线NR蜂窝链路占用的下行时隙。
- 根据权利要求1-18任一项所述的方法,其特征在于,当所述传输单元为时隙时,所述第二资源集不包括的侧行链路同步时隙包括:LTE侧行链路的同步信号占用的时隙;和/或,NR侧行链路同步信号占用的时隙。
- 根据权利要求1-19中任意一项所述的方法,其特征在于,当所述传输单元为时隙时,所述第二资源集与所述LTE侧行链路位于同一个载波,所述第二资源集不包括所述LTE侧行链路占用的时隙;或者,所述第二资源集位于第一载波,所述LTE侧行链路位于第二载波,所述第一载波与所述第二载波位于同一个频带,所述第二资源集不包括所述LTE侧行链路在所述第二载波上占用的时隙。
- 根据权利要求1-20中任意一项所述的方法,其特征在于,当所述传输单元为时隙时,当所述第二资源集与所述LTE蜂窝链路位于同一个载波或同频带的不同载波时,所述下行时隙包括LTE蜂窝链路占用的下行时隙;和/或,当所述第二资源集与所述NR蜂窝链路位于同一个载波或同频带的不同载波时,所述下行时隙包括NR蜂窝链路占用的下行时隙。
- 根据权利要求1-20中任意一项所述的方法,其特征在于,所述第三资源集中用于第一信道传输的时隙包括第一类时隙和/或第二类时隙,所述第一类时隙为时隙中的所有符号都用于侧行传输的时隙,所述第二类时隙为时隙中的部分符号用于侧行传输的时隙。
- 根据权利要求1-22中任意一项所述的方法,其特征在于,所述第三资源集中的时隙包括上行时隙和/或灵活时隙,其中,所述第三资源集中的上行时隙为所述第一资源集中的上行时隙的子集,所述第三资源集中的灵活时隙为所述第一资源集中的灵活时隙的子集。
- 根据权利要求22所述的方法,其特征在于,所述第二类时隙为以下时隙中的任意一种:包括下行符号,以及以下符号中的至少一种符号的时隙:灵活符号、上行符号或侧行符号;包括上行符号,以及以下符号中的至少一种符号的时隙:灵活符号、或侧行符号;包括灵活符号,以及以下符号中的至少一种:上行符号或侧行符号。
- 根据权利要求1-24中任一项所述的方法,其特征在于,下行时隙为时隙中所有符号均用于下行传输的时隙,上行时隙为时隙中所有符号均用于上行传输的时隙,灵活时隙为时隙中所有符号均用于灵活传输的时隙。
- 一种第一设备,其特征在于,包括:第一确定模块,用于从第一资源集中确定第二资源集,所述第二资源集不包括所述第一资源集中包括的以下资源中的至少一种:下行传输单元,侧行链路同步信号传输单元,长期演进LTE侧行链路占用的传输单元,灵活传输单元,上行传输单元,所述传输单元包括时隙或者符号;第二确定模块,用于根据第一指示信息从所述第二资源集中,确定用于第一信道传输的第三资源集。
- 一种第一设备,其特征在于,包括处理器、存储器和收发器,所述存储器用于存储指令,所述收发器用于和其他设备通信,所述处理器用于执行所述存储器中存储的指令,以使所述第一设备执行如权利要求1-25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存储有指令,当所述指令被执行时,使得计算机执行如权利要求1-25中任一项所述的方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910364437.6 | 2019-04-30 | ||
CN201910364437.6A CN111867075B (zh) | 2019-04-30 | 2019-04-30 | 侧行链路的传输资源的处理方法和装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020221058A1 true WO2020221058A1 (zh) | 2020-11-05 |
Family
ID=72965284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/085798 WO2020221058A1 (zh) | 2019-04-30 | 2020-04-21 | 传输资源确定方法和装置 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN111867075B (zh) |
WO (1) | WO2020221058A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113196853B (zh) * | 2019-06-27 | 2023-04-04 | 捷开通讯(深圳)有限公司 | 侧链资源分配 |
CN117377072A (zh) * | 2022-06-27 | 2024-01-09 | 夏普株式会社 | 由用户设备执行的方法以及用户设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160330728A1 (en) * | 2015-05-04 | 2016-11-10 | Telefonaktiebolaget L M Ericsson (Publ) | Progressive resource allocation for vehicular communication |
WO2017027355A1 (en) * | 2015-08-12 | 2017-02-16 | Interdigital Patent Holdings, Inc. | Methods, apparatus and systems for realizing vehicle to vehicle communications using long term evolution device to device communications |
CN107734649A (zh) * | 2016-08-11 | 2018-02-23 | 中兴通讯股份有限公司 | 一种v2x通信的资源选择方法和装置 |
CN109526056A (zh) * | 2017-09-18 | 2019-03-26 | 电信科学技术研究院 | 多载波下的资源选择方法、装置及计算机设备、存储介质 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2429605B (en) * | 2005-08-24 | 2008-06-04 | Ipwireless Inc | Apparatus and method for communicating signalling information |
CN109392146B (zh) * | 2017-08-11 | 2023-04-28 | 华为技术有限公司 | 确定上行传输资源的方法、终端及网络设备 |
CN110868755B (zh) * | 2017-09-30 | 2020-11-10 | 华为技术有限公司 | 信息传输方法和装置 |
-
2019
- 2019-04-30 CN CN201910364437.6A patent/CN111867075B/zh active Active
-
2020
- 2020-04-21 WO PCT/CN2020/085798 patent/WO2020221058A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160330728A1 (en) * | 2015-05-04 | 2016-11-10 | Telefonaktiebolaget L M Ericsson (Publ) | Progressive resource allocation for vehicular communication |
WO2017027355A1 (en) * | 2015-08-12 | 2017-02-16 | Interdigital Patent Holdings, Inc. | Methods, apparatus and systems for realizing vehicle to vehicle communications using long term evolution device to device communications |
CN107734649A (zh) * | 2016-08-11 | 2018-02-23 | 中兴通讯股份有限公司 | 一种v2x通信的资源选择方法和装置 |
CN109526056A (zh) * | 2017-09-18 | 2019-03-26 | 电信科学技术研究院 | 多载波下的资源选择方法、装置及计算机设备、存储介质 |
Non-Patent Citations (1)
Title |
---|
INTEL CORPORATION: "Sidelink measurements for V2V sensing and resource re-selection procedures", 3GPP TSG RAN WG1 MEETING #86, R1-166511, 26 August 2016 (2016-08-26), XP051125407, DOI: 20200708155938A * |
Also Published As
Publication number | Publication date |
---|---|
CN111867075B (zh) | 2023-11-21 |
CN111867075A (zh) | 2020-10-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7416933B2 (ja) | サイドリンクチャネル状態情報報告を送信するための方法、装置、およびシステム | |
JP6828970B2 (ja) | D2dにおけるリソースのインデックス付け | |
CN112534923A (zh) | 用于无线通信***的电子设备、方法和存储介质 | |
WO2018082620A1 (zh) | 子帧配置方法及装置 | |
CN112399579B (zh) | 反馈信息的传输方法及通信装置 | |
WO2019028699A1 (zh) | 信号传输方法及相关设备 | |
WO2020221058A1 (zh) | 传输资源确定方法和装置 | |
US20230156670A1 (en) | Partial sensing method and device for device-to-device communication in wireless communication system | |
WO2021027855A1 (zh) | 资源分配的方法及装置 | |
CN116235631A (zh) | 新空口(nr)旁路发现消息的用户面协议设计 | |
WO2017133334A1 (zh) | 通信资源的确定方法及装置 | |
WO2021062774A1 (zh) | 一种侧行链路资源处理的方法、装置和*** | |
WO2021072659A1 (zh) | 资源配置方法及设备 | |
CN112398616A (zh) | 一种反馈信息传输方法及装置 | |
CN114503467B (zh) | 一种数据传输方法以及装置 | |
JP2023546906A (ja) | サイドリンクスケジューリングのオフロードによるユーザ機器の省電力化 | |
US20220394710A1 (en) | Resource indication method, resource determining method, and related apparatus | |
CN110418409B (zh) | 信道资源协调分配方法及装置 | |
WO2018032915A1 (zh) | 一种非授权频谱上的数据传输方法和设备 | |
WO2020259293A1 (zh) | 一种通信方法和装置 | |
WO2022222106A1 (zh) | 传输物理侧行反馈信道psfch的方法和终端设备 | |
CN115604825A (zh) | 一种侧行通信方法及装置 | |
WO2019157639A1 (zh) | 一种harq信息的传输方法及装置、计算机存储介质 | |
WO2023207485A1 (zh) | 时间单元确定的方法和通信装置 | |
WO2023011218A1 (zh) | 一种资源共享方法及通信装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20799070 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20799070 Country of ref document: EP Kind code of ref document: A1 |