WO2019084929A1 - 资源选取的方法和终端设备 - Google Patents

资源选取的方法和终端设备 Download PDF

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Publication number
WO2019084929A1
WO2019084929A1 PCT/CN2017/109405 CN2017109405W WO2019084929A1 WO 2019084929 A1 WO2019084929 A1 WO 2019084929A1 CN 2017109405 W CN2017109405 W CN 2017109405W WO 2019084929 A1 WO2019084929 A1 WO 2019084929A1
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WIPO (PCT)
Prior art keywords
terminal device
resource
service
delay requirement
available
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PCT/CN2017/109405
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English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201780091642.9A priority Critical patent/CN110710292B/zh
Priority to PCT/CN2017/109405 priority patent/WO2019084929A1/zh
Publication of WO2019084929A1 publication Critical patent/WO2019084929A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communications, and more specifically, to a method and terminal device for resource selection.
  • the terminal device of Release 14 will be based on the past 1 second.
  • the embodiment of the present application provides a method for selecting a resource and a terminal device.
  • the physical layer of the terminal device can listen to the resource in the resource pool according to the delay requirement, thereby satisfying the data of the service that the Release 15 terminal device requires for different delays. The need for transmission.
  • the embodiment of the present application provides a method for resource selection, including:
  • the physical layer of the terminal device listens to the resource in the resource pool according to the delay requirement to obtain the available resource set, where the resource in the available resource set is used to transmit the to-be-transmitted service.
  • the physical layer of the terminal device can listen to the resource in the resource pool according to the delay requirement, so as to obtain the available resource set, so that the available resource set can meet different delay requirements. The need for data transmission by the business.
  • the delay requirement includes at least two different delay requirements, where the at least two different delay requirements include a first delay requirement and a second delay requirement. .
  • the physical layer of the terminal device is based on the delay
  • the requirement listens for resources in the resource pool to get a collection of available resources, including:
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement, to obtain the first available resource set, and listens to the resource in the resource pool according to the second delay requirement to obtain the second A collection of available resources.
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement, to obtain the first available resource set, according to the second time
  • the request is to listen to resources in the resource pool to obtain a second set of available resources, including:
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement and the first sub-band number, to obtain the first available resource set, according to the second delay requirement and the second sub-band number. Listening to resources in the resource pool to obtain the second set of available resources.
  • the first subband number and the second subband number are configured by a higher layer of the terminal device to the physical layer.
  • the to-be-transmitted service includes a first service and a second service, where a delay requirement of the first service is the first delay requirement, and the second service is The delay requirement is the second delay requirement.
  • the resource in the first available resource set is used to transmit the first service
  • the resource in the second available resource set is used to transmit the second service
  • the first subband number is a subband number required to carry the first service
  • the second subband number is a subcarrier required to carry the second service.
  • the physical layer of the terminal device listens to the resource in the resource pool according to the delay requirement, to obtain the available resource set, including:
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement, to obtain a third available resource set, where the resource in the third available resource set is used to transmit the to-be-transmitted service.
  • the physical layer of the terminal device is configured to listen to the resource in the resource pool according to the first delay requirement, to obtain the third available resource set, including:
  • the physical layer of the terminal device listens to resources in the resource pool according to the first delay requirement and the third sub-band number to obtain the third available resource set.
  • the third subband number is configured by a higher layer of the terminal device to the physical layer.
  • the to-be-transmitted service includes a third service and The fourth service, wherein the delay requirement of the third service is the first delay requirement, and the delay requirement of the fourth service is the second delay requirement;
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement and the third sub-band number, to obtain the third available resource set, including:
  • the physical layer of the terminal device listens to the resource in the resource pool according to the delay requirement of the third service and the third sub-band number, to obtain the third available resource set, where the resource in the third available resource set is used. Transmitting the third service and the fourth service.
  • the third subband number is a number of subbands required to simultaneously carry the third service and the fourth service.
  • the method further includes:
  • the physical layer of the terminal device reports the available resource set to the upper layer.
  • the terminal device is a terminal device that supports a version of the Rel-15 communication protocol.
  • the method is applied to an end-to-end D2D system.
  • the embodiment of the present application provides a terminal device, which can execute the module or unit of the method in the first aspect or any optional implementation manner of the first aspect.
  • a terminal device comprising a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • a computer storage medium storing program code for instructing a computer to perform the method of any of the first aspect or the first aspect of the first aspect. instruction.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the methods described in the various aspects above.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic diagram of another application scenario of an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for resource selection according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of resource selection according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a device for resource selection provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • D2D Device to Device
  • LTE Long Term Evolution
  • the communication system based on the Internet of Vehicles system may be a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a Wideband Code Division Multiple Access (Wideband Code Division). Multiple Access, WCDMA) System, General Packet Radio Service (GPRS), LTE System, LTE Frequency Division Duplex (FDD) System, LTE Time Division Duplex (TDD), General Purpose Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5G New Radio (NR) system, and the like.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • Multiple Access WCDMA) System
  • GPRS General Packet Radio Service
  • LTE System LTE Frequency Division Duplex
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS General Purpose Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Micro
  • the terminal device in the embodiment of the present application may be a terminal device capable of implementing D2D communication.
  • it may be an in-vehicle terminal device, or may be a terminal device in a 5G network or a terminal device in a public land mobile communication network (PLMN) in the future, which is not limited in the embodiment of the present application.
  • PLMN public land mobile communication network
  • FIG. 1 and FIG. 2 are schematic diagrams of an application scenario of an embodiment of the present application.
  • FIG. 1 exemplarily shows a network device and two terminal devices.
  • the wireless communication system in the embodiment of the present application may include multiple network devices and may include other numbers in the coverage of each network device.
  • the terminal device is not limited in this embodiment of the present application.
  • the wireless communication system may further include another network such as a Mobile Management Entity (MME), a Serving Gateway (S-GW), and a Packet Data Network Gateway (P-GW). Entity, or the wireless communication system may further include other network entities such as a session management function (SMF), a unified data management (UDM), an authentication server function (AUSF), and the like.
  • MME Mobile Management Entity
  • S-GW Serving Gateway
  • P-GW Packet Data Network Gateway
  • Entity or the wireless communication system may further include other network entities such as a session management function (SMF), a unified data management (UDM), an authentication server function (AUSF), and the like.
  • SMF session management function
  • UDM unified data management
  • AUSF authentication server function
  • the terminal device 20 and the terminal device 30 can communicate by the D2D communication mode.
  • the terminal device 20 and the terminal device 30 directly communicate through a D2D link, ie, a side link (Sidelink, SL).
  • a side link Sidelink, SL
  • the terminal device 20 and the terminal device 30 directly communicate via a side line.
  • the terminal device 20 and the terminal device 30 communicate by a side line, and the transmission resources thereof are allocated by the network device; in FIG. 2, the terminal device 20 and the terminal device 30 pass the side link. Communication, whose transmission resources are independently selected by the terminal device, does not require the network device to allocate transmission resources.
  • the D2D communication may refer to a vehicle to vehicle (V2V) communication or a vehicle to Everything (V2X) communication.
  • V2X communication X can refer to any device with wireless receiving and transmitting capabilities, such as but not limited to slow moving wireless devices, fast moving in-vehicle devices, or network control nodes with wireless transmit and receive capabilities. It should be understood that the embodiment of the present invention is mainly applied to the scenario of V2X communication, but can also be applied to any other D2D communication scenario, which is not limited in this embodiment.
  • a terminal device having a listening capability such as a Vehicle User Equipment (VUE) or a Pedestrian User Equipment (PUE), and no listening.
  • VUE Vehicle User Equipment
  • PUE Pedestrian User Equipment
  • Capable terminal equipment such as PUE.
  • VUE has higher processing power and is usually powered by the battery in the car, while PUE has lower processing power, and reducing power consumption is also a major factor that PUE needs to consider. Therefore, in the existing car network system, VUE is considered to have Full reception and listening capabilities; while PUE is considered to have partial or no reception and listening capabilities.
  • the resource may be selected by using a similar listening method as the VUE, and the available resources may be selected on the part of the resources that can be intercepted; if the PUE does not have the listening capability, the PUE is in the resource pool. Randomly select transmission resources.
  • the delay requirement of the system is 100ms.
  • the low-latency service is introduced in the new Release-15.
  • the delay sensitivity and delay-insensitive of the system may exist at the same time. Service, therefore, the terminal equipment of Release-15 fully considers the impact of the delay requirement on the data transmission of services with different delay requirements when performing resource selection.
  • the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media.
  • the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (Digital Versatile Disc, DVD). Etc.), smart cards and flash memory devices (eg, Erasable Programmable Read-Only Memory (EPROM), cards, sticks or key drivers, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, a variety of media capable of storing, containing, and/or carrying instructions and/or data.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 3 is a schematic flowchart of a method 200 for resource selection according to an embodiment of the present application.
  • the method 200 can be performed by a terminal device, which can be a terminal device as shown in FIG. 1 or FIG. 2, and the method 200 includes the following.
  • the physical layer of the terminal device listens to the resource in the resource pool according to the delay requirement, so as to obtain the available resource set, where the resource in the available resource set is used to transmit the to-be-transmitted service.
  • the resource pool may be configured by a network device.
  • the resource pool can be pre-configured.
  • the terminal device is a terminal device supporting a Release (Rel-15) communication protocol.
  • the set of available resources is a resource set for the terminal device to perform D2D communication with other terminal devices, where the to-be-transmitted service implements D2D with other terminal devices for the terminal device. Communication business.
  • the delay requirement includes at least two different delay requirements, where the at least two different delay requirements include a first delay requirement and a second delay requirement.
  • the first latency requirement is greater than the second latency requirement.
  • the first delay requirement is a delay requirement corresponding to the delay-sensitive service
  • the second delay requirement is a delay requirement corresponding to the delay-insensitive service
  • the first delay requirement is 10 milliseconds
  • the second delay requirement is 100 milliseconds.
  • the service may be divided into multiple levels according to the delay requirement, and each level of service corresponds to a delay requirement.
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement, to obtain the first available resource set, and listens to the resource in the resource pool according to the second delay requirement. To obtain a second set of available resources.
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement and the first sub-band number, to obtain the first available resource set, according to the second delay requirement and the first The second sub-band counts the resource in the resource pool to obtain the second available resource set.
  • the first subband number and the second subband number are configured by a high layer of the terminal device to the physical layer.
  • the to-be-transmitted service includes a first service and a second service, where a delay requirement of the first service is the first delay requirement, and a delay requirement of the second service is the second delay requirement.
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement, to obtain the first available resource set, and listens to the resource in the resource pool according to the second delay requirement.
  • Obtaining a second set of available resources wherein the resources in the first set of available resources are used to transmit the first service, and the resources in the second set of available resources are used to transmit the second service.
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement and the first sub-band number, to obtain the first available resource set, according to the second delay requirement and the second sub-required
  • the number of the band listens to the resource in the resource pool to obtain the second set of available resources, wherein the resource in the first available resource set is used to transmit the first service, and the resource in the second available resource set is used for transmission The second business.
  • the first number of subbands is a number of subbands required to carry the first service
  • the number of the second subbands is a number of subbands required to carry the second service.
  • the physical layer of the terminal device listens for the resource in the resource pool according to the first delay requirement.
  • the source is configured to obtain a third set of available resources, where the resources in the third set of available resources are used to transmit the to-be-transmitted service.
  • the first delay requirement is a delay requirement that has the highest latency requirement for the at least two different delay requirements, that is, the first delay requirement is most sensitive to the delay.
  • the to-be-transmitted service may include multiple services with different delay requirements.
  • the terminal device listens to the resource according to the first delay requirement that has the highest latency requirement to obtain the third available resource set, and then transmits multiple services with different delay requirements in the resources in the third available resource set. .
  • the physical layer of the terminal device listens to the resource in the resource pool according to the first delay requirement and the third sub-band number, to obtain a third available resource set, where the resource in the third available resource set is used.
  • the transmission of the to-be-transmitted service is performed.
  • the first delay requirement is a delay requirement that has the highest latency requirement for the at least two different delay requirements, that is, the first delay requirement is most sensitive to the delay.
  • the to-be-transmitted service includes a third service and a fourth service, where a delay requirement of the third service is the first delay requirement, and a delay requirement of the fourth service is the second delay requirement.
  • the delay requirement of the third service is greater than the fourth service, that is, the first delay requirement is greater than the second delay requirement.
  • the third service is a delay-sensitive service
  • the fourth service is a delay-insensitive service
  • the physical layer of the terminal device listens to the resource in the resource pool according to the delay requirement of the third service, to obtain a third available resource set, where the resource in the third available resource set is used to transmit the third Business and the fourth business.
  • the physical layer of the terminal device listens to the resource in the resource pool according to the delay requirement of the third service and the third sub-band number, to obtain the third available resource set, where the third available resource set
  • the resource is used to transmit the third service and the fourth service.
  • the third sub-band number is a number of sub-bands required to simultaneously carry the third service and the fourth service.
  • the third subband number is configured by the upper layer of the terminal device to the physical layer.
  • the delay requirement is configured for a higher layer of the terminal device to the physical layer.
  • the method 200 further includes:
  • the physical layer of the terminal device reports the available resource set to the upper layer.
  • the method 200 is applied to a D2D communication system.
  • the available resource set may be Select a resource to transfer.
  • the high-level terminal device performs a resource selection operation when the resource needs to be selected from the available resource set.
  • the terminal device can perform resource sensing and selection according to the process of resource sensing and selection in the Network-14 system in the Release-14 version.
  • the process of resource sensing and selection is exemplified below.
  • the terminal device listens for resources in the listening window and selects resources in the selection window.
  • the terminal device performs resource sensing in the listening window, and performs resource selection in the selection window.
  • the specific resource selection process is as follows.
  • the terminal device 20 listens to the resources of the terminal device 30 as an example for description:
  • the transmission period may be an element in a set of transmission periods, which may be, for example, ⁇ 20, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 ⁇ ms. For example, as shown in FIG. 4, if the terminal 20 has no listening result on the resource A in the listening window, and the resource on the next transmission period corresponding to the resource A is the resource A1 in the selection window, the terminal 20 will use the resource A1. Excluded from the candidate resource set S_A.
  • the terminal device 20 detects the physical sidelink control channel (PSCCH) sent by the terminal device 30 in the listening window of the first 1 s, and the physical side row shared channel corresponding to the PSCCH
  • the measured value of the Reference Signal Received Power (RSRP) of the (Physical Sidelink Shared Channel, PSSCH) is higher than the PSSCH-RSRP threshold, and the detected PSCCH indicates that the terminal device 30 that sends the PSCCH reserves the subsequent
  • the time-frequency resource required for transmission (for example, in FIG. 4, the time-frequency resource reserved by the terminal device 30 is a time-domain location corresponding to the resource B in the listening window and located after the resource B, such as 100 ms, 200 ms, 300 ms, ...
  • Time-frequency resource B1 terminal device 20 It is determined whether the time-frequency resources reserved by the terminal device 30 in the selection window overlap with the time-frequency resources for transmitting data selected by the user in the selection window (including all overlapping or partially overlapping). If there is an overlap, that is, a resource conflict occurs, the terminal device 20 excludes the time-frequency resource within the selection window from the candidate resource set S_A. At this time, it is assumed that the number of remaining resources in the candidate resource set S_A is equal to B.
  • the terminal device 20 may increase the PSSCH-RSRP threshold by 3 dB, and repeat steps (0) through (2) until B ⁇ A ⁇ 20 %.
  • the terminal device 20 performs a measurement of a Received Signal Strength Indicator (RSSI) on the remaining B resources in the candidate resource set S_A, and sorts the measurement result from high to low, and the signal strength is the lowest. ⁇ 20% of the resources are moved to the candidate resource set S_B.
  • RSSI Received Signal Strength Indicator
  • the terminal device 20 selects a time-frequency resource for data transmission in the candidate resource set S_B with equal probability.
  • time-frequency resource occupied by the data channel corresponding to a certain control channel is referred to as a time-frequency resource (or a resource block) for transmitting the data channel, and the candidate resource set in each selection window is included.
  • resources A1 and B1 in FIG. 4 can be referred to as one time-frequency resource.
  • the terminal device 20 After the terminal device 20 selects the time-frequency resource for data transmission, the time-frequency resource is continuously used in each transmission cycle of the subsequent transmission process, and the time-frequency resource C_resel is used in total, wherein C_resel is a resource reselection counter ( Resource Reselection Counter), the value of C_resel is decremented by 1 every time data is transmitted.
  • C_resel is a resource reselection counter ( Resource Reselection Counter)
  • the value of C_resel is decremented by 1 every time data is transmitted.
  • the terminal device 20 When the value of C_resel is reduced to 0, the terminal device 20 generates a random number between [0, 1] and maintains the probability of resources (Probability).
  • the resource Keep, ProbResourceKeep parameter is compared, the parameter indicates the probability that the terminal device continues to use the resource, and if the value of the random number is greater than the parameter, the terminal device 20 performs resource reselection, if The value of the random number is less than the parameter, and the terminal device 20 can continue to use the time-frequency resource for data transmission and simultaneously reset the value of C_resel.
  • the physical layer of the terminal device can listen to the resource in the resource pool according to the delay requirement, so as to obtain the available resource set, so that the available resource set can meet different delay requirements. The need for data transmission by the business.
  • FIG. 5 is a schematic block diagram of a terminal device 300 according to an embodiment of the present application. As shown in FIG. 5, the terminal device 300 includes:
  • the physical layer unit 310 is configured to listen to resources in the resource pool according to the delay requirement, to obtain an available resource set, where the resources in the available resource set are used to transmit the to-be-transmitted service.
  • the delay requirement includes at least two different delay requirements, where the at least two different delay requirements include a first delay requirement and a second delay requirement.
  • the physical layer unit 310 is further configured to: listen to resources in the resource pool according to the first delay requirement, to obtain a first available resource set, and detect the resource pool according to the second delay requirement. Listen to the resource to get the second set of available resources.
  • the physical layer unit 310 is further configured to: listen to the resource in the resource pool according to the first delay requirement and the first sub-band number, to obtain the first available resource set, according to the second delay The demand and the second number of subbands listen for resources in the resource pool to obtain the second set of available resources.
  • the first subband number and the second subband number are configured by a high layer of the terminal device to the physical layer.
  • the to-be-transmitted service includes a first service and a second service, where a delay requirement of the first service is the first delay requirement, and a delay requirement of the second service is the second delay requirement.
  • the resource in the first available resource set is used to transmit the first service
  • the resource in the second available resource set is used to transmit the second service
  • the first number of subbands is a number of subbands required to carry the first service
  • the number of the second subbands is a number of subbands required to carry the second service.
  • the physical layer unit 310 is further configured to: listen to the resource in the resource pool according to the first delay requirement, to obtain a third available resource set, where the resource in the third available resource set is used to transmit the resource.
  • the service to be transmitted is further configured to: listen to the resource in the resource pool according to the first delay requirement, to obtain a third available resource set, where the resource in the third available resource set is used to transmit the resource. The service to be transmitted.
  • the physical layer unit 310 is further configured to listen to resources in the resource pool according to the first delay requirement and the third sub-band number to obtain the third available resource set.
  • the third subband number is configured by the upper layer of the terminal device to the physical layer.
  • the to-be-transmitted service includes a third service and a fourth service, where a delay requirement of the third service is the first delay requirement, and a delay requirement of the fourth service is the second delay requirement. ;
  • the physical layer unit 310 is further configured to: listen to the resource in the resource pool according to the delay requirement of the third service and the third sub-band number, to obtain the third available resource set, where the third available resource set The resource is used to transmit the third service and the fourth service.
  • the third sub-band number is a number of sub-bands required to simultaneously carry the third service and the fourth service.
  • the physical layer unit 310 is further configured to report the available resource set to a higher layer.
  • the terminal device is a terminal device supporting a version Rel-15 communication protocol.
  • the terminal device is applied in an end-to-end D2D system.
  • FIG. 6 is a schematic block diagram of a device 400 for resource selection provided by an embodiment of the present application.
  • the device 400 includes:
  • the memory 410 is configured to store a program, where the program includes a code
  • the transceiver 420 is configured to communicate with other devices;
  • the processor 430 is configured to execute program code in the memory 410.
  • the processor 430 can also implement various operations performed by the terminal device in the method 200 in FIG. 3, and details are not described herein for brevity.
  • the device 400 may be a terminal device, for example, an in-vehicle terminal.
  • the processor 430 may be a central processing unit (CPU), and the processor 430 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 410 can include read only memory and random access memory and provides instructions and data to the processor 430. A portion of the memory 410 may also include a non-volatile random access memory. For example, the memory 410 can also store information of the device type.
  • the transceiver 420 can be used to implement signal transmission and reception functions, such as frequency modulation and demodulation functions or upconversion and down conversion functions.
  • the resource selection device 400 can be a chip or a chipset.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor 430 reads the information in the memory and completes the steps of the above method in combination with the hardware thereof. To avoid repetition, it will not be described in detail here.
  • FIG. 7 is a schematic structural diagram of a system chip 500 according to an embodiment of the present application.
  • the system chip 500 of FIG. 7 includes an input interface 501, an output interface 502, a processor 503, and a memory 504 that can be connected by an internal communication connection line for executing code in the memory 504.
  • the processor 503 when the code is executed, the processor 503 implements a method performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be wired from a website site, computer, server or data center (for example, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be determined.
  • the implementation process of the embodiment of the present application constitutes any limitation.

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Abstract

本申请实施例提供了一种资源选取的方法和终端设备，终端设备的物理层可以根据时延需求在资源池中侦听资源，以获取可用资源集合，从而，可用资源集合可以满足不同时延要求的业务进行数据传输的需求。该方法包括：终端设备的物理层根据时延需求在资源池中侦听资源，以获取可用资源集合，其中，该可用资源集合中的资源用于传输待传输业务。

Description

资源选取的方法和终端设备 技术领域
本申请涉及通信领域，并且更具体地，涉及一种资源选取的方法和终端设备。
背景技术
在版本(Release)14的车联网系统中，对于每个侧行链路进程(Sidelink Process)，当在时刻n需要进行资源选取或者资源重选时，Release 14的终端设备会根据过去1秒中的侦听结果，在[n+T1，n+T2]毫秒内进行资源选取，其中，T1<＝4，20<＝T2<＝100。
在Release 14的车联网系统中，系统的传输时延固定不变(100ms)，然而，在Release 15的车联网系统中，引入了低时延的业务，即，系统中可能同时存在对时延要求高的业务(时延敏感业务)和对时延要求低的业务(时延不敏感业务)，现有的支持Release 14的资源选取方法，无法满足Release 15中对不同时延要求的业务进行数据传输的需求。
发明内容
本申请实施例提供了一种资源选取的方法和终端设备，终端设备的物理层可以根据时延需求在资源池中侦听资源，从而，满足Release 15终端设备对不同时延要求的业务进行数据传输的需求。
第一方面，本申请实施例提供了一种资源选取的方法，包括：
终端设备的物理层根据时延需求在资源池中侦听资源，以获取可用资源集合，其中，该可用资源集合中的资源用于传输待传输业务。
因此，在本申请实施例的资源选取的方法中，终端设备的物理层可以根据时延需求在资源池中侦听资源，以获取可用资源集合，从而，可用资源集合可以满足不同时延要求的业务进行数据传输的需求。
可选地，在第一方面的一种实现方式中，该时延需求包括至少两种不同的时延需求，该至少两种不同的时延需求包括第一时延需求和第二时延需求。
可选地，在第一方面的一种实现方式中，该终端设备的物理层根据时延 需求在资源池中侦听资源，以获取可用资源集合，包括：
该终端设备的物理层根据该第一时延需求在该资源池中侦听资源，以获取第一可用资源集合，根据该第二时延需求在该资源池中侦听资源，以获取第二可用资源集合。
可选地，在第一方面的一种实现方式中，该终端设备的物理层根据该第一时延需求在该资源池中侦听资源，以获取第一可用资源集合，根据该第二时延需求在该资源池中侦听资源，以获取第二可用资源集合，包括：
该终端设备的物理层根据该第一时延需求和第一子带数在该资源池中侦听资源，以获取该第一可用资源集合，根据该第二时延需求和第二子带数在该资源池中侦听资源，以获取该第二可用资源集合。
可选地，在第一方面的一种实现方式中，该第一子带数和该第二子带数为该终端设备的高层配置给物理层的。
可选地，在第一方面的一种实现方式中，该待传输业务包括第一业务和第二业务，其中，该第一业务的时延需求为该第一时延需求，该第二业务的时延需求为该第二时延需求。
可选地，在第一方面的一种实现方式中，该第一可用资源集合中的资源用于传输该第一业务，该第二可用资源集合中的资源用于传输该第二业务。
可选地，在第一方面的一种实现方式中，该第一子带数为承载该第一业务所需的子带数，该第二子带数为承载该第二业务所需的子带数。
可选地，在第一方面的一种实现方式中，该终端设备的物理层根据时延需求在资源池中侦听资源，以获取可用资源集合，包括：
该终端设备的物理层根据该第一时延需求在该资源池中侦听资源，以获取第三可用资源集合，该第三可用资源集合中的资源用于传输该待传输业务。
可选地，在第一方面的一种实现方式中，该终端设备的物理层根据该第一时延需求在该资源池中侦听资源，以获取第三可用资源集合，包括：
该终端设备的物理层根据该第一时延需求和第三子带数在该资源池中侦听资源，以获取该第三可用资源集合。
可选地，在第一方面的一种实现方式中，该第三子带数为该终端设备的高层配置给物理层的。
可选地，在第一方面的一种实现方式中，该待传输业务包括第三业务和 第四业务，其中，该第三业务的时延需求为该第一时延需求，该第四业务的时延需求为该第二时延需求；
该终端设备的物理层根据该第一时延需求和第三子带数在该资源池中侦听资源，以获取该第三可用资源集合，包括：
该终端设备的物理层根据该第三业务的时延需求和第三子带数在该资源池中侦听资源，以获取该第三可用资源集合，该第三可用资源集合中的资源用于传输该第三业务和该第四业务。
可选地，在第一方面的一种实现方式中，该第三子带数为同时承载该第三业务和第四业务所需的子带数。
可选地，在第一方面的一种实现方式中，该方法还包括：
该终端设备的物理层将该可用资源集合上报给高层。
可选地，在第一方面的一种实现方式中，该终端设备为支持版本Rel-15通信协议的终端设备。
可选地，在第一方面的一种实现方式中，该方法应用于端到端D2D系统中。
第二方面，本申请实施例提供了一种终端设备，可以执行第一方面或第一方面的任一可选的实现方式中的方法的模块或者单元。
第三方面，提供了一种终端设备，该终端设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令，处理器用于执行该指令，通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时，该执行使得该处理器执行第一方面或第一方面的任意可能的实现方式中的方法。
第四方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示计算机执行上述第一方面或第一方面的任一种可能的实现方式中的方法的指令。
第五方面，提供了一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
附图说明
图1是本申请实施例一个应用场景的示意图。
图2是本申请实施例另一个应用场景的示意图。
图3是根据本申请实施例的一种资源选取的方法的示意性流程图。
图4是根据本申请实施例的一种资源选取的示意图。
图5是根据本申请实施例的一种终端设备的示意性框图。
图6示出了本申请实施例提供的资源选取的设备的示意性框图。
图7是根据本申请实施例的系统芯片的示意性结构图。
具体实施方式
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清楚、完整地描述。
应理解，本申请实施例的技术方案可以应用于端到端(Device to Device，D2D)通信系统，例如，基于长期演进(Long Term Evolution，LTE)进行D2D通信的车联网系统。与传统的LTE系统中终端之间的通信数据通过网络设备(例如，基站)接收或者发送的方式不同，车联网系统采用终端到终端直接通信的方式，因此具有更高的频谱效率以及更低的传输时延。
可选地，车联网系统基于的通信系统可以是全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、LTE系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、5G新无线(New Radio，NR)系统等。
本申请实施例中的终端设备可以是能够实现D2D通信的终端设备。例如，可以是车载终端设备，也可以是5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例并不限定。
图1和图2是本申请实施例的一个应用场景的示意图。图1示例性地示出了一个网络设备和两个终端设备，可选地，本申请实施例中的无线通信系统可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该无线通信系统还可以包括移动管理实体(Mobile Management Entity，MME)、服务网关(Serving Gateway，S-GW)、分组数据网络网关(Packet Data Network Gateway，P-GW)等其他网络实体，或者，该无线通信系统还可以包括会话管理功能(Session Management Function，SMF)、统一数据管理(Unified Data Management，UDM)，认证服务器功能(Authentication Server Function，AUSF)等其他网络实体，本申请实施例对此不作限定。
具体地，终端设备20和终端设备30可以通过D2D通信模式进行通信，在进行D2D通信时，终端设备20和终端设备30通过D2D链路即侧行链路(Sidelink上，SL)直接进行通信。例如图1或者图2所示，终端设备20和终端设备30通过侧行链路直接进行通信。在图1中，终端设备20和终端设备30之间通过侧行链路通信，其传输资源是由网络设备分配的；在图2中，终端设备20和终端设备30之间通过侧行链路通信，其传输资源是由终端设备自主选取的，不需要网络设备分配传输资源。
D2D通信可以指车对车(Vehicle to Vehicle，简称“V2V”)通信或车辆到其他设备(Vehicle to Everything，V2X)通信。在V2X通信中，X可以泛指任何具有无线接收和发送能力的设备，例如但不限于慢速移动的无线装置，快速移动的车载设备，或是具有无线发射接收能力的网络控制节点等。应理解，本发明实施例主要应用于V2X通信的场景，但也可以应用于任意其它D2D通信场景，本申请实施例对此不做任何限定。
在车联网系统中，可以存在两种类型的终端设备，即具有侦听能力的终端设备例如车载终端(Vehicle User Equipment，VUE)或行人手持终端(Pedestrian User Equipment，PUE)，以及不具有侦听能力的终端设备例如PUE。VUE具有更高的处理能力，并且通常通过车内的蓄电池供电，而PUE处理能力较低，降低功耗也是PUE需要考虑的一个主要因素，因此在现有的车联网系统中，VUE被认为具有完全的接收能力和侦听能力；而PUE被认为具有部分或者不具有接收和侦听能力。如果PUE具有部分侦听能力，其资源的选取可以采用和VUE类似的侦听方法，在可侦听的那部分资源上进行可用资源的选取；如果PUE不具有侦听能力，则PUE在资源池中随机选取传输资源。
在支持第三代合作伙伴项目(the 3rd Generation Partnership Project， 3GPP)协议的版本Release-14车联网系统中，系统的时延需求是100ms，在新版本Release-15中引入了低时延的业务，系统中可能同时存在时延敏感和时延不敏感的业务，因此，Release-15的终端设备在进行资源选取时，充分考虑时延需求对不同时延要求的业务进行数据传输的影响。
此外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于：磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(Compact Disc，CD)、数字通用盘(Digital Versatile Disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(Erasable Programmable Read-Only Memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，能够存储、包含和/或承载指令和/或数据的各种介质。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
图3是根据本申请实施例的一种资源选取的方法200的示意性流程图。如图3所示，该方法200可以由终端设备执行，该终端设备可以是如图1或图2中所示的终端设备，该方法200包括以下内容。
210，终端设备的物理层根据时延需求在资源池中侦听资源，以获取可用资源集合，其中，该可用资源集合中的资源用于传输待传输业务。
可选地，该资源池可以是网络设备配置的。
可选地，该资源池可以是预配置的。
可选地，可以有多个终端设备在该资源池中侦听资源。
可选地，该终端设备为支持版本(Release-15，Rel-15)通信协议的终端设备。
可选地，该可用资源集合为该终端设备实现与其他终端设备进行D2D通信的资源集合，该待传输业务为该终端设备实现与其他终端设备进行D2D 通信的业务。
可选地，该时延需求包括至少两种不同的时延需求，该至少两种不同的时延需求包括第一时延需求和第二时延需求。
例如，第一时延需求大于第二时延需求。
又例如，第一时延需求为时延敏感型业务所对应的时延需求，第二时延需求为时延不敏感型业务所对应的时延需求。
又例如，第一时延需求为10毫秒，第二时延需求为100毫秒
又例如，可以根据时延需求将业务划分为多个等级，每个等级的业务对应一种时延需求。
可选地，该终端设备的物理层根据该第一时延需求在该资源池中侦听资源，以获取第一可用资源集合，根据该第二时延需求在该资源池中侦听资源，以获取第二可用资源集合。
可选地，该终端设备的物理层根据该第一时延需求和第一子带数在该资源池中侦听资源，以获取该第一可用资源集合，根据该第二时延需求和第二子带数在该资源池中侦听资源，以获取该第二可用资源集合。
可选地，该第一子带数和该第二子带数为该终端设备的高层配置给物理层的。
可选地，该待传输业务包括第一业务和第二业务，其中，该第一业务的时延需求为该第一时延需求，该第二业务的时延需求为该第二时延需求。
具体地，该终端设备的物理层根据该第一时延需求在该资源池中侦听资源，以获取第一可用资源集合，根据该第二时延需求在该资源池中侦听资源，以获取第二可用资源集合，其中，该第一可用资源集合中的资源用于传输该第一业务，该第二可用资源集合中的资源用于传输该第二业务。
具体地，该终端设备的物理层根据该第一时延需求和第一子带数在该资源池中侦听资源，以获取第一可用资源集合，根据该第二时延需求和第二子带数在该资源池中侦听资源，以获取第二可用资源集合，其中，该第一可用资源集合中的资源用于传输该第一业务，该第二可用资源集合中的资源用于传输该第二业务。
可选地，该第一子带数为承载该第一业务所需的子带数，该第二子带数为承载该第二业务所需的子带数。
可选地，该终端设备的物理层根据该第一时延需求在该资源池中侦听资 源，以获取第三可用资源集合，该第三可用资源集合中的资源用于传输该待传输业务。
可选地，该第一时延需求为该至少两种不同的时延需求中对时延要求最高的时延需求，即该第一时延需求对时延最为敏感。
可选地，该待传输业务可以包括多种对时延要求不同的业务。
即，终端设备根据对时延要求最高的第一时延需求侦听资源，以获取第三可用资源集合，然后，在第三可用资源集合中的资源中传输多种对时延要求不同的业务。
可选地，该终端设备的物理层根据该第一时延需求和第三子带数在该资源池中侦听资源，以获取第三可用资源集合，该第三可用资源集合中的资源用于传输该待传输业务。可选地，该第一时延需求为该至少两种不同的时延需求中对时延要求最高的时延需求，即该第一时延需求对时延最为敏感。
可选地，该待传输业务包括第三业务和第四业务，其中，该第三业务的时延需求为该第一时延需求，该第四业务的时延需求为该第二时延需求。
可选地，该第三业务的时延需求大于该第四业务，即该第一时延需求大于该第二时延需求。
例如，该第三业务为时延敏感型业务，该第四业务为时延不敏感型业务。
具体地，该终端设备的物理层根据该第三业务的时延需求在该资源池中侦听资源，以获取第三可用资源集合，该第三可用资源集合中的资源用于传输该第三业务和该第四业务。
具体地，该终端设备的物理层根据该第三业务的时延需求和第三子带数在该资源池中侦听资源，以获取该第三可用资源集合，该第三可用资源集合中的资源用于传输该第三业务和该第四业务。
可选地，该第三子带数为同时承载该第三业务和第四业务所需的子带数。
可选地，该第三子带数为该终端设备的高层配置给物理层的。
可选地，该时延需求为该终端设备的高层配置给物理层的。
可选地，该方法200还包括：
该终端设备的物理层将该可用资源集合上报给高层。
可选地，该方法200应用于D2D通信系统中。
可选地，该终端设备需要传输该待传输业务时，可以从该可用资源集合 中选取资源进行传输。
可选地，该终端设备的高层在需要从该可用资源集合中选取资源时，执行资源选取操作。
具体地，该终端设备可以按照Release-14版本中的车联网系统进行资源侦听和选取的过程进行资源侦听和选取，下面示例性的给出了资源侦听和选取的过程。
当在时刻n需要进行资源选取时，该终端设备会根据过去1秒中的侦听结果，在[n+T1，n+T2]毫秒内进行资源选取或者资源重选，其中T1<＝4；T2满足待传输业务的时延需求。
可选地，终端设备在侦听窗内侦听资源，在选择窗内选择资源。
例如，如图4所示，终端设备在侦听窗内进行资源侦听，在选择窗内进行资源选取。具体的资源选取过程如下，这里以终端设备20侦听终端设备30的资源为例进行描述：
(0)假设选择窗内的所有资源组成候选资源集合S_A，假设最初的该候选资源集合S_A中的资源数量为A。
(1)如果侦听窗内的某个子帧上没有侦听结果，与该子帧之间按照一定传输周期分布的被预留的另一子帧落在选择窗内，那么选择窗内的该另一子帧上的资源被排除在该候选资源集合S_A之外。该传输周期可以是传输周期集合中的元素，该传输周期集合例如可以为{20，50，100，200，300，400，500，600，700，800，900，1000}ms。例如图4所示，如果终端20在侦听窗内资源A上没有侦听结果，并且与该资源A对应的下一个传输周期上的资源是选择窗内的资源A1，那么终端20将资源A1从候选资源集合S_A中排除。
(2)如果终端设备20在前1s的侦听窗内，检测到终端设备30发送的物理侧行链路控制信道(Physical Sidelink Control Channel，PSCCH)，且该PSCCH所对应的物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)的参考信号接收功率(Reference Signal Received Power，RSRP)的测量值高于PSSCH-RSRP门限，并且检测到的该PSCCH指示了发送该PSCCH的终端设备30预留了后续传输所需的时频资源(例如图4中，终端设备30预留的时频资源为，与侦听窗内资源B相对应的位于资源B之后100ms、200ms、300ms、……等时域位置的时频资源B1)，那么终端设备20 会判断选择窗内被终端设备30预留的时频资源，与自己在该选择窗内选择的用于传输数据的时频资源是否重叠(包括全部重叠或者部分重叠)。如果重叠，即发生资源冲突，那么终端设备20将该选择窗内的该时频资源排除在候选资源集合S_A之外。此时，假设该候选资源集合S_A中剩余的资源数量等于B。
应理解，如果终端设备20在该选择窗内为自己选择了用于传输数据的该时频资源，并且在按照时间周期T20分布的多个该时频资源上都需要传输数据，那么此时，如果终端设备30预留了按照时间周期T30分布的多个该时频资源，且时间周期T20满足T20×M＝T30×N，M和N为正整数，那么终端设备20会将按照时间周期T20分布的多个该时频资源排除在该候选资源集合之外。
(3)如果候选资源集合S_A中剩余的资源数量B小于A×20％，终端设备20可以将PSSCH-RSRP门限提高3dB，并且重复步骤(0)至步骤(2)，直到B≥A×20％。
(4)终端设备20对候选资源集合S_A中剩余的B个资源进行接收信号强度指示(Received Signal Strength Indicator，RSSI)的测量，并且按照测量结果由高到低进行排序，将信号强度最低的A×20％个的资源移到候选资源集合S_B中。
(5)终端设备20在候选资源集合S_B中，等概率地选取一个时频资源用于数据传输。
应理解，这里将某个控制信道对应的数据信道所占用的时频资源，称为用于传输该数据信道的一个时频资源(或一个资源块)，每个选择窗内的候选资源集合中可以存在多个时频资源用于传输该数据信道。例如图4中的资源A1和B1均可以称为一个时频资源。
当终端设备20选取了用于数据传输的时频资源后，会在后续传输过程的各个传输周期中持续使用该时频资源，共计使用该时频资源C_resel次，其中C_resel为资源重选计数器(Resource Reselection Counter)，每传输一次数据，C_resel的值减1，当C_resel的值减至0时，终端设备20会产生一个位于[0，1]之间的随机数，并与资源保持概率(Probability Resource Keep，ProbResourceKeep)参数进行比较，该参数表示终端设备继续使用该资源的概率，如果该随机数的值大于该参数，终端设备20进行资源重选，如果该 随机数的值小于该参数，终端设备20可以继续使用该时频资源进行数据传输，并且同时重置C_resel的值。
因此，在本申请实施例的资源选取的方法中，终端设备的物理层可以根据时延需求在资源池中侦听资源，以获取可用资源集合，从而，可用资源集合可以满足不同时延要求的业务进行数据传输的需求。
图5是根据本申请实施例的一种终端设备300的示意性框图。如图5所示，该终端设备300包括：
物理层单元310，用于根据时延需求在资源池中侦听资源，以获取可用资源集合，其中，该可用资源集合中的资源用于传输待传输业务。
可选地，该时延需求包括至少两种不同的时延需求，该至少两种不同的时延需求包括第一时延需求和第二时延需求。
可选地，该物理层单元310，还用于根据该第一时延需求在该资源池中侦听资源，以获取第一可用资源集合，根据该第二时延需求在该资源池中侦听资源，以获取第二可用资源集合。
可选地，该物理层单元310，还用于根据该第一时延需求和第一子带数在该资源池中侦听资源，以获取该第一可用资源集合，根据该第二时延需求和第二子带数在该资源池中侦听资源，以获取该第二可用资源集合。
可选地，该第一子带数和该第二子带数为该终端设备的高层配置给物理层的。
可选地，该待传输业务包括第一业务和第二业务，其中，该第一业务的时延需求为该第一时延需求，该第二业务的时延需求为该第二时延需求。
可选地，该第一可用资源集合中的资源用于传输该第一业务，该第二可用资源集合中的资源用于传输该第二业务。
可选地，该第一子带数为承载该第一业务所需的子带数，该第二子带数为承载该第二业务所需的子带数。
可选地，该物理层单元310，还用于根据该第一时延需求在该资源池中侦听资源，以获取第三可用资源集合，该第三可用资源集合中的资源用于传输该待传输业务。
可选地，该物理层单元310，还用于根据该第一时延需求和第三子带数在该资源池中侦听资源，以获取该第三可用资源集合。
可选地，该第三子带数为该终端设备的高层配置给物理层的。
可选地，该待传输业务包括第三业务和第四业务，其中，该第三业务的时延需求为该第一时延需求，该第四业务的时延需求为该第二时延需求；
该物理层单元310，还用于根据该第三业务的时延需求和第三子带数在该资源池中侦听资源，以获取该第三可用资源集合，该第三可用资源集合中的资源用于传输该第三业务和该第四业务。
可选地，该第三子带数为同时承载该第三业务和第四业务所需的子带数。
可选地，该物理层单元310，还用于将该可用资源集合上报给高层。
可选地，该终端设备为支持版本Rel-15通信协议的终端设备。
可选地，该终端设备应用于端到端D2D系统中。
应理解，根据本申请实施例的终端设备300中的各个模块的上述和其它操作和/或功能分别为了实现图3中的方法200中的终端设备的相应流程，为了简洁，在此不再赘述。
图6示出了本申请实施例提供的资源选取的设备400的示意性框图，该设备400包括：
存储器410，用于存储程序，该程序包括代码；
收发器420，用于和其他设备进行通信；
处理器430，用于执行存储器410中的程序代码。
可选地，当该代码被执行时，该处理器430还可以实现图3中的方法200中终端设备执行的各个操作，为了简洁，在此不再赘述。此时，该设备400可以为终端设备，例如，车载终端。
应理解，在本申请实施例中，该处理器430可以是中央处理单元(Central Processing Unit，CPU)，该处理器430还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器410可以包括只读存储器和随机存取存储器，并向处理器430提供指令和数据。存储器410的一部分还可以包括非易失性随机存取存储器。例如，存储器410还可以存储设备类型的信息。
收发器420可以是用于实现信号发送和接收功能，例如频率调制和解调功能或叫上变频和下变频功能。
在实现过程中，上述方法的至少一个步骤可以通过处理器430中的硬件的集成逻辑电路完成，或该集成逻辑电路可在软件形式的指令驱动下完成该至少一个步骤。因此，资源选取的设备400可以是个芯片或者芯片组。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器430读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
图7是根据本申请实施例的系统芯片500的示意性结构图。图7的系统芯片500包括输入接口501、输出接口502、处理器503以及存储器504之间可以通过内部通信连接线路相连，该处理器503用于执行该存储器504中的代码。
可选地，当该代码被执行时，该处理器503实现方法实施例中由终端设备执行的方法。为了简洁，在此不再赘述。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应 对本申请实施例的实施过程构成任何限定。
所属领的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以该权利要求的保护范围为准。

Claims (32)

  1. 一种资源选取的方法，其特征在于，包括：
    终端设备的物理层根据时延需求在资源池中侦听资源，以获取可用资源集合，其中，所述可用资源集合中的资源用于传输待传输业务。
  2. 根据权利要求1所述的方法，其特征在于，所述时延需求包括至少两种不同的时延需求，所述至少两种不同的时延需求包括第一时延需求和第二时延需求。
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备的物理层根据时延需求在资源池中侦听资源，以获取可用资源集合，包括：
    所述终端设备的物理层根据所述第一时延需求在所述资源池中侦听资源，以获取第一可用资源集合，根据所述第二时延需求在所述资源池中侦听资源，以获取第二可用资源集合。
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备的物理层根据所述第一时延需求在所述资源池中侦听资源，以获取第一可用资源集合，根据所述第二时延需求在所述资源池中侦听资源，以获取第二可用资源集合，包括：
    所述终端设备的物理层根据所述第一时延需求和第一子带数在所述资源池中侦听资源，以获取所述第一可用资源集合，根据所述第二时延需求和第二子带数在所述资源池中侦听资源，以获取所述第二可用资源集合。
  5. 根据权利要求4所述的方法，其特征在于，所述第一子带数和所述第二子带数为所述终端设备的高层配置给物理层的。
  6. 根据权利要求4或5所述的方法，其特征在于，所述待传输业务包括第一业务和第二业务，其中，所述第一业务的时延需求为所述第一时延需求，所述第二业务的时延需求为所述第二时延需求。
  7. 根据权利要求6所述的方法，其特征在于，所述第一可用资源集合中的资源用于传输所述第一业务，所述第二可用资源集合中的资源用于传输所述第二业务。
  8. 根据权利要求6或7所述的方法，其特征在于，所述第一子带数为承载所述第一业务所需的子带数，所述第二子带数为承载所述第二业务所需的子带数。
  9. 根据权利要求2所述的方法，其特征在于，所述终端设备的物理层 根据时延需求在资源池中侦听资源，以获取可用资源集合，包括：
    所述终端设备的物理层根据所述第一时延需求在所述资源池中侦听资源，以获取第三可用资源集合，所述第三可用资源集合中的资源用于传输所述待传输业务。
  10. 根据权利要求9所述的方法，其特征在于，所述终端设备的物理层根据所述第一时延需求在所述资源池中侦听资源，以获取第三可用资源集合，包括：
    所述终端设备的物理层根据所述第一时延需求和第三子带数在所述资源池中侦听资源，以获取所述第三可用资源集合。
  11. 根据权利要求10所述的方法，其特征在于，所述第三子带数为所述终端设备的高层配置给物理层的。
  12. 根据权利要求10或11所述的方法，其特征在于，所述待传输业务包括第三业务和第四业务，其中，所述第三业务的时延需求为所述第一时延需求，所述第四业务的时延需求为所述第二时延需求；
    所述终端设备的物理层根据所述第一时延需求和第三子带数在所述资源池中侦听资源，以获取所述第三可用资源集合，包括：
    所述终端设备的物理层根据所述第三业务的时延需求和第三子带数在所述资源池中侦听资源，以获取所述第三可用资源集合，所述第三可用资源集合中的资源用于传输所述第三业务和所述第四业务。
  13. 根据权利要求12所述的方法，其特征在于，所述第三子带数为同时承载所述第三业务和第四业务所需的子带数。
  14. 根据权利要求1至13中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备的物理层将所述可用资源集合上报给高层。
  15. 根据权利要求1至14中任一项所述的方法，其特征在于，所述终端设备为支持版本Rel-15通信协议的终端设备。
  16. 根据权利要求1至15中任一项所述的方法，其特征在于，所述方法应用于端到端D2D系统中。
  17. 一种终端设备，其特征在于，包括：
    物理层单元，用于根据时延需求在资源池中侦听资源，以获取可用资源集合，其中，所述可用资源集合中的资源用于传输待传输业务。
  18. 根据权利要求17所述的终端设备，其特征在于，所述时延需求包括至少两种不同的时延需求，所述至少两种不同的时延需求包括第一时延需求和第二时延需求。
  19. 根据权利要求18所述的终端设备，其特征在于，所述物理层单元，还用于根据所述第一时延需求在所述资源池中侦听资源，以获取第一可用资源集合，根据所述第二时延需求在所述资源池中侦听资源，以获取第二可用资源集合。
  20. 根据权利要求19所述的终端设备，其特征在于，所述物理层单元，还用于根据所述第一时延需求和第一子带数在所述资源池中侦听资源，以获取所述第一可用资源集合，根据所述第二时延需求和第二子带数在所述资源池中侦听资源，以获取所述第二可用资源集合。
  21. 根据权利要求20所述的终端设备，其特征在于，所述第一子带数和所述第二子带数为所述终端设备的高层配置给物理层的。
  22. 根据权利要求20或21所述的终端设备，其特征在于，所述待传输业务包括第一业务和第二业务，其中，所述第一业务的时延需求为所述第一时延需求，所述第二业务的时延需求为所述第二时延需求。
  23. 根据权利要求22所述的终端设备，其特征在于，所述第一可用资源集合中的资源用于传输所述第一业务，所述第二可用资源集合中的资源用于传输所述第二业务。
  24. 根据权利要求22或23所述的终端设备，其特征在于，所述第一子带数为承载所述第一业务所需的子带数，所述第二子带数为承载所述第二业务所需的子带数。
  25. 根据权利要求18所述的终端设备，其特征在于，所述物理层单元，还用于根据所述第一时延需求在所述资源池中侦听资源，以获取第三可用资源集合，所述第三可用资源集合中的资源用于传输所述待传输业务。
  26. 根据权利要求25所述的终端设备，其特征在于，所述物理层单元，还用于根据所述第一时延需求和第三子带数在所述资源池中侦听资源，以获取所述第三可用资源集合。
  27. 根据权利要求26所述的终端设备，其特征在于，所述第三子带数为所述终端设备的高层配置给物理层的。
  28. 根据权利要求26或27所述的终端设备，其特征在于，所述待传输 业务包括第三业务和第四业务，其中，所述第三业务的时延需求为所述第一时延需求，所述第四业务的时延需求为所述第二时延需求；
    所述物理层单元，还用于根据所述第三业务的时延需求和第三子带数在所述资源池中侦听资源，以获取所述第三可用资源集合，所述第三可用资源集合中的资源用于传输所述第三业务和所述第四业务。
  29. 根据权利要求28所述的终端设备，其特征在于，所述第三子带数为同时承载所述第三业务和第四业务所需的子带数。
  30. 根据权利要求17至29中任一项所述的终端设备，其特征在于，所述物理层单元，还用于将所述可用资源集合上报给高层。
  31. 根据权利要求17至30中任一项所述的终端设备，其特征在于，所述终端设备为支持版本Rel-15通信协议的终端设备。
  32. 根据权利要求17至31中任一项所述的终端设备，其特征在于，所述终端设备应用于端到端D2D系统中。
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