WO2019024069A1 - 设备对设备通信的方法、终端设备和网络设备 - Google Patents

设备对设备通信的方法、终端设备和网络设备 Download PDF

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Publication number
WO2019024069A1
WO2019024069A1 PCT/CN2017/095949 CN2017095949W WO2019024069A1 WO 2019024069 A1 WO2019024069 A1 WO 2019024069A1 CN 2017095949 W CN2017095949 W CN 2017095949W WO 2019024069 A1 WO2019024069 A1 WO 2019024069A1
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WIPO (PCT)
Prior art keywords
resource
control channel
channel resource
terminal device
scheduling information
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Application number
PCT/CN2017/095949
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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.)
Filing date
Publication date
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 PCT/CN2017/095949 priority Critical patent/WO2019024069A1/zh
Priority to RU2020102421A priority patent/RU2748224C1/ru
Priority to AU2017426201A priority patent/AU2017426201A1/en
Priority to BR112020001389-7A priority patent/BR112020001389A2/pt
Priority to CA3070888A priority patent/CA3070888C/en
Priority to EP17919958.3A priority patent/EP3624518B1/en
Priority to SG11202000700UA priority patent/SG11202000700UA/en
Priority to CN201780091886.7A priority patent/CN110771225B/zh
Publication of WO2019024069A1 publication Critical patent/WO2019024069A1/zh
Priority to US16/726,421 priority patent/US11147085B2/en
Priority to ZA2020/00456A priority patent/ZA202000456B/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the embodiments of the present application relate to the field of wireless communications, and in particular, to a device to device (D2D) communication method, a terminal device, and a network device.
  • D2D device to device
  • the vehicle networking or vehicle to Everything (V2X) communication system is a sidelink (SL) transmission technology based on D2D communication, which is adopted in the traditional Long Term Evolution (LTE) system.
  • LTE Long Term Evolution
  • the way in which the base station receives or transmits data is different.
  • the vehicle networking system adopts a terminal-to-terminal direct communication method, and thus has higher spectrum efficiency and lower transmission delay.
  • the terminal determines data channel resources for transmitting data channels according to the control channel, thereby performing data transmission on the corresponding data channel resources.
  • the control channel is transmitted within a Transmission Time Interval (TTI), where one TTI corresponds in time to One subframe is 1 ms.
  • TTI Transmission Time Interval
  • the control channel and the data channel can be transmitted in a short TTI (sort TTI, sTTI), for example, an sTTI corresponds in time. In a time slot is 0.5ms.
  • the embodiments of the present application provide a method, a terminal device, and a network device for D2D communication, which enable terminals supporting different communication protocols to jointly perform data transmission in a communication system and reduce mutual interference.
  • a method for D2D communication including: pre-configuring a first terminal device Setting a resource pool that is used to transmit the first resource scheduling information, determining a first control channel resource, and determining a second control channel resource in the pre-configured resource pool that is used to transmit the second resource scheduling information, where The time domain length of the first control channel resource is greater than the time domain length of the second control channel resource; the first terminal device sends the first resource scheduling information on the first control channel resource, and Transmitting the second resource scheduling information on the second control channel resource.
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel
  • the second resource scheduling information is used by the third terminal device to determine the data channel.
  • a resource the second terminal device capable of detecting resource scheduling information based on a time domain length of the first control channel resource
  • the third terminal device being capable of being based on a time domain length of the first control channel resource and/or the The time domain length of the second control channel resource detects resource scheduling information.
  • the first terminal device sends the resource scheduling information of different lengths in the resource pool for transmitting the resource scheduling information of different lengths, so that the second terminal device and the third terminal device supporting different protocol versions can be
  • the resource scheduling information of the first terminal device is detected in the corresponding resource pool to obtain the resource usage of the first terminal device, thereby jointly performing data transmission and reducing interference in the communication system.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the frequency domain. Between a control channel resource and the second control channel resource; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are in a frequency domain. Adjacent or non-adjacent, the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the method further includes: receiving, by the first terminal device, indication information that is sent by the network device, where the indication information is used to indicate a resource pool that is used to transmit the second resource scheduling information.
  • the configuration parameter startRB-shortPSCCH-pool may be introduced to indicate an index of the starting RB of the resource pool that can be used to transmit the second resource scheduling information.
  • the network device can configure and deliver the parameter to the terminal device; the parameter can also be specified by the network device and the terminal device, for example, as specified in the protocol.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • Each of the plurality of sub-bands includes a plurality of consecutive physical resource blocks (PRBs), and the resource allocation of the entire system bandwidth is a sub-band granularity.
  • PRBs physical resource blocks
  • the second control channel resource A frequency domain resource of the preset size that is located at the end of the first sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, The second control channel resource occupies the preset size frequency domain resource at the end of the second sub-band, where the second sub-band is adjacent to the first sub-band and is not the data channel The next subband occupied.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each sub-band, where the first control channel resource And in the frequency domain, adjacent to the data channel resource occupied by the data channel corresponding to the first resource scheduling information carried on the first control channel resource.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource and a time domain end of the data channel resource are Position alignment.
  • the second terminal device supports a communication protocol of version Release-14 and does not support a communication protocol of version Release-15
  • the first terminal device and the third terminal device support a version Release. -15 communication protocol.
  • the second aspect provides a method for D2D communication, where the third terminal device detects, in a pre-configured resource pool that can be used to transmit the second resource scheduling information, the second resource scheduling information sent by the first terminal device, where The second resource scheduling information occupies the second control channel resource, the time domain length of the second control channel resource is smaller than the time domain length of the first control channel resource, and the first control channel resource is used for the first The terminal device sends the first resource scheduling information;
  • the first resource scheduling information is used by the second terminal device to determine the data channel resource, and the second terminal device is configured to detect resource scheduling information based on a time domain length of the first control channel resource, where the third The terminal device is capable of detecting resource scheduling information based on a time domain length of the first control channel resource and/or a time domain length of the second control channel resource.
  • the terminal device detects the resource scheduling information sent by the other terminal device in the resource pool for transmitting the resource scheduling information of the length, based on the length of the control channel resource that can be detected by the terminal device, to obtain the resource usage of the other terminal device. Thereby data transmission is carried out jointly in the communication system and interference is avoided.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the frequency domain. Between a control channel resource and the second control channel resource; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are in a frequency domain. Adjacent or non-adjacent, the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the method further includes: receiving, by the third terminal device, indication information that is sent by the network device, where the indication information is used to indicate a resource pool that is used to transmit the second resource scheduling information. The location of the starting resource block.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource A frequency domain resource of the preset size that is located at the end of the first sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, The second control channel resource occupies the preset size frequency domain resource at the end of the second sub-band, where the second sub-band is adjacent to the first sub-band and is not the data channel The next subband occupied.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each sub-band, where the first control The channel resources are adjacent to the data channel resources in the frequency domain.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource and a time domain end of the data channel resource are Position alignment.
  • the second terminal device supports a communication protocol of version Release-14 and does not support a communication protocol of version Release-15
  • the first terminal device and the third terminal device support a version Release. -15 communication protocol.
  • a third aspect provides a method for D2D communication, including: determining, by a network device, a resource pool that can be used to transmit first resource scheduling information, and a resource pool that can be used to transmit second resource scheduling information;
  • the terminal device sends indication information, where the indication information is used to indicate a resource pool that can be used to transmit the first resource scheduling information, and a resource pool that can be used to transmit the second resource scheduling information, so that the first terminal device is available for transmission.
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel
  • the second resource scheduling information is used by the third terminal device to determine the data channel.
  • a resource the second terminal device capable of detecting resource scheduling information based on a time domain length of the first control channel resource
  • the third terminal device being capable of being based on a time domain length of the first control channel resource and/or the The time domain length of the second control channel resource detects resource scheduling information.
  • the network device pre-configures a resource pool that can be used to transmit resource scheduling information of different lengths, so that the first terminal device can separately send two resource scheduling information of different lengths in different preset resource pools, so that different protocol versions are supported.
  • the second terminal device and the third terminal device are both capable of detecting the resource scheduling information of the first terminal device in the respective resource pools to obtain the resource usage of the first terminal device, thereby jointly performing data transmission in the communication system. And reduce interference.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the frequency domain. Between a control channel resource and the second control channel resource; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are in a frequency domain. Adjacent or non-adjacent, the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the indication information includes information about a starting resource block in a resource pool that can be used to transmit the second resource scheduling information, for example, an index of the starting resource block.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource A frequency domain resource of the preset size that is located at the end of the first sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, The second control channel resource occupies the preset size frequency domain resource at the end of the second sub-band, where the second sub-band is adjacent to the first sub-band and is not the data channel The next subband occupied.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each sub-band, where the first control channel resource Adjacent to the data channel resource in the frequency domain.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource and a time domain end of the data channel resource are Position alignment.
  • the second terminal device supports a communication protocol of version Release-14 and does not support a communication protocol of version Release-15
  • the first terminal device and the third terminal device support a version Release. -15 communication protocol.
  • a terminal device in a fourth aspect, can perform the operations of the first terminal device in the foregoing first aspect or any optional implementation manner of the first aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the first aspect or the first aspect described above.
  • a fifth aspect provides a terminal device, which can perform the operations of the third terminal device in any of the foregoing optional implementations of the second aspect or the second aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the second aspect or the second aspect described above.
  • a network device which can perform the operations of the network device in any of the foregoing optional implementations of the third aspect or the third aspect.
  • the network device may comprise a modular unit for performing the operations of the network device in any of the possible implementations of the third aspect or the third aspect described above.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in the first aspect or any possible implementation manner of the first aspect, or the execution causes the terminal device to implement the fourth aspect provided by the fourth aspect A terminal device.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the terminal device to implement the fifth aspect provided by the fifth aspect Three terminal devices.
  • a network device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the network device to perform the method in any of the possible implementations of the third aspect or the third aspect, or the execution causes the network device to implement the network provided by the sixth aspect device.
  • a computer readable storage medium is provided, the computer readable storage medium There is stored a program that causes the terminal device to perform the above-described first aspect, and a method of any of the various implementations of D2D communication.
  • a computer readable storage medium storing a program causing a network device to perform the second aspect described above, and any of the various implementations thereof, D2D The method of communication.
  • a computer readable storage medium in a twelfth aspect, storing a program causing a network device to perform the third aspect described above, and any of the various implementations thereof, D2D The method of communication.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement The method of any of the preceding first aspect or any possible implementation of the first aspect.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement The method of any of the preceding second aspect or any of the possible implementations of the second aspect.
  • a system chip includes an input interface, an output interface, a processor, and a memory, where the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement The method of any of the preceding third aspect or any possible implementation of the third aspect.
  • a computer program product comprising instructions for causing a computer to execute the method of any of the first aspect or the first aspect of the first aspect, when the computer program product is run on a computer.
  • a computer program product comprising instructions for causing a computer to execute the method of any of the above-described second or second aspect of the second aspect when the computer program product is run on a computer.
  • a computer program product comprising instructions for causing a computer to execute the method of any of the above-described third or third aspect of the third aspect, when the computer program product is run on a computer.
  • FIG. 1 is a schematic structural diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic diagram of resources adjacent to a control channel resource and a data channel resource in a frequency domain.
  • 3 is a schematic diagram of resources that are not adjacent to the control channel resource and the data channel resource in the frequency domain.
  • FIG. 4 is a schematic flowchart of a method for D2D communication according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of resource allocation according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another resource allocation according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of still another resource allocation in the embodiment of the present application.
  • FIG. 8 is a schematic diagram of still another resource allocation in the embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a method for D2D communication according to another embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a method for D2D communication according to still another embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a first terminal device according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a third terminal device according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a first terminal device according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a third terminal device according to an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • Network device 10 may be a device that communicates with a terminal device. Each network device 10 can provide communication coverage for a particular geographic area and can communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 10 may be a base station (Base Transceiver Station, referred to as "BTS” in a Global System of Mobile communication (“GSM”) system or a Code Division Multiple Access (“CDMA”) system. ”), may also be a base station (NodeB, referred to as “NB”) in a Wideband Code Division Multiple Access (WCDMA) system, or may be a Long Term Evolution (LTE).
  • BTS Base Transceiver Station
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • NB base station
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • An evolved Node B in the system, or a wireless controller in a Cloud Radio Access Network (CRAN).
  • the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network side device in a future 5G network, or a network device in a future evolved Public Land Mobile Network (PLMN). Wait.
  • eNB evolved Node B
  • CRAN Cloud Radio Access Network
  • PLMN Public Land Mobile Network
  • the wireless communication system also includes a plurality of terminal devices such as terminal device 20, terminal device 30, and terminal device 40 that are located within the coverage of network device 10.
  • These terminal devices can be mobile or fixed.
  • These terminal devices may refer to an access terminal, a user equipment (User Equipment ("UE"), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication device. , user agent or user device.
  • UE User Equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SIP") phone, a Wireless Local Loop (WLL) station, or a personal digital assistant (Personal Digital Assistant, Referred to as "PDA”), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a future evolved public land mobile network (Public) Terminal devices in the Land Mobile Network (PLMN).
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 1 exemplarily shows one network device and three terminal devices.
  • the wireless communication system may include a plurality of network devices and the coverage of each network device may include other numbers of terminal devices, the present invention The embodiment does not limit this.
  • the wireless communication system may further include other network entities such as a Mobile Management Entity (MME), a Serving Gateway (S-GW), and a Packet Data Network Gateway (P-GW).
  • MME Mobile Management Entity
  • S-GW Serving Gateway
  • P-GW Packet Data Network Gateway
  • the terminal device 20, the terminal device 30, and the terminal device 40 may communicate in a cellular communication mode or a D2D communication mode, wherein in the cellular communication mode, the terminal device passes through a cellular link with the network device and other terminal devices Communication; in the D2D communication mode, two terminal devices directly communicate through a D2D link, ie, a side link (Sidelink, SL).
  • a side link Sidelink, SL
  • 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 of the present invention.
  • the terminal device 20 may transmit control information such as resource scheduling information to indicate a resource location of a data channel of the terminal device 20, and the resource scheduling information may be referred to as Scheduling Assignment (SA) information, for example.
  • SA Scheduling Assignment
  • the resource scheduling information indicates the data channel resource used by the terminal device 20 for data transmission, so that after detecting the resource scheduling information, the terminal device 30 can determine the location of the data channel resource of the terminal device 20, thereby performing data reception, and performing The interception and selection of resources.
  • the resource scheduling information carries information related to data transmission of the terminal device 20, such as Modulation Coding Mode (MCS), time-frequency resource allocation information, resource reservation information, and the like.
  • MCS Modulation Coding Mode
  • the terminal device 30 that receives the resource scheduling information can obtain the location of the time-frequency resource used by the terminal device 20 for data transmission, resource reservation information, and the like by detecting the resource scheduling information, thereby determining the resource usage of the terminal device 20. If the terminal device 30 cannot successfully detect the resource scheduling information, the energy on all the transmission resources may be measured, and all the transmission resources are sorted according to the energy level, and the low-energy transmission resource is preferentially selected for its own data transmission.
  • the data transmission and the corresponding resource scheduling information are transmitted by Frequency Division Multiplexing (FDM).
  • FDM Frequency Division Multiplexing
  • the resource pool for transmitting resource scheduling information and the resource pool for transmitting data have two configurations, namely, a frequency domain adjacent and a non-adjacent manner.
  • the control channel resource for transmitting resource scheduling information is adjacent to the data channel resource used for transmitting the data channel in the frequency domain, and the entire system bandwidth is A sub-band (also referred to as a sub-band) is a granularity, and each sub-band includes a plurality of consecutive physical resource blocks (PRBs), and the first PRB and the second PRB in each sub-band can be used to transmit resources.
  • a sub-band also referred to as a sub-band
  • PRBs physical resource blocks
  • Scheduling information ie, control channel resources occupy two adjacent PRBs in the subband in the frequency domain
  • the remaining PRBs are available data channel resources
  • the data channel resources and the control channel resources are one-to-one correspondence
  • the data The starting position of the channel resource is determined by the location of its corresponding control channel resource.
  • the data channel resource may occupy one sub-band (for example, the data channel resource occupied sub-band 1 used by the terminal device shown on the subframe 2), or may span multiple sub-bands (for example, the terminal device shown on the subframe 4)
  • the used data channel resources occupy subband 2 and subband 3).
  • the data channel resources are contiguous in the frequency domain in multiple sub-bands, and may occupy control channel resources in other sub-bands, and the control channel resources corresponding to the data channel resources are located in the data channel resources.
  • the control channel resources for example, the data channel resources shown in subframe 4 in FIG. 2 occupy two adjacent sub-bands (sub-band 2 and sub-band 3), and the corresponding control channel resources are in the two sub-bands.
  • the first subband subband 2
  • the control channel resources and their corresponding data channel resources are not adjacent in the frequency domain, and the data channel resources and the control channel resources are independently configured.
  • the location of the data channel resource and the location of the control channel resource are in one-to-one correspondence, and the starting location of the data channel resource may be determined by the location of its corresponding control channel resource.
  • the data channel resource may occupy one sub-band (for example, the data channel resource occupied sub-band 1 used by the terminal device shown on the subframe 2), or may occupy multiple sub-bands (for example, the terminal device shown on the subframe 4)
  • the data channel resources occupy subband 2 and subband 3).
  • the data channel resource occupies multiple sub-bands
  • the data channel is continuous in the frequency domain in multiple sub-bands
  • the resource scheduling information corresponding to the data channel is located in the control channel resource in the first sub-band, for example, subframe 4 of FIG.
  • the data channel shown above occupies two adjacent sub-bands (sub-band 2 and sub-band 3), and the resource scheduling information corresponding to the data channel is located in the control channel resource corresponding to the first sub-band (sub-band 2).
  • a short TTI (sort TTI) is introduced, and a terminal device supporting Release-15 is required to use sTTI to transmit a data channel, and a terminal device supporting Release-15 and A terminal device supporting Release-14 (Rel-14) can perform data transmission in a common resource pool, which has a great influence on the resource sensing and selection process of the terminal device supporting Release-14. Therefore, the terminal device that needs Release-14 can detect that the terminal device of Release-15 sends a control channel, such as resource scheduling information or scheduling allocation (SA) information, to learn the resource occupancy of the terminal device of Release-15, thereby performing The interception and selection of resources. This requires the Release-15 terminal device to be able to send a normal control channel compatible with the Release-14 version.
  • SA scheduling allocation
  • the control channel and the data channel can be transmitted in the same sTTI, that is, the terminal device of Release-15 can send a short control channel on the sTTI.
  • short scheduling (short SA, sSA) information is sent on the sTTI.
  • the terminal device of Release-15 can obtain the content of the control channel by detecting the sSA, and determine the data channel resource according to the control channel and perform the detection of the data channel, without waiting for the TTI of 1 ms (that is, the normal TTI) to end. The detection of the control channel is completed afterwards, thereby reducing the delay.
  • the terminal device of Release-14 needs to detect the control channel sent by the terminal device of Release-15, so as to obtain the resource occupation of the terminal device of Release-15. Thereby resource listening and selection.
  • the terminal device of Release-15 also needs to detect the control channel sent by the terminal device of Release-15, so as to acquire the resource occupancy of the terminal device of Release-15, thereby performing resource sensing and selection.
  • the terminal device of Release-15 can detect the short resource scheduling information transmitted on the sTTI, and the terminal device of Release-14 can only detect the normal resource scheduling information transmitted on the TTI. In this way, terminals supporting different communication protocols cannot jointly perform data transmission in the communication system.
  • the first terminal device separately sends resource scheduling information of different lengths in a resource pool for transmitting resource scheduling information of different lengths, so that the different protocol versions are supported.
  • the second terminal device and the third terminal device are both capable of detecting the resource scheduling information of the first terminal device in the respective resource pools, so as to obtain the resource usage of the first terminal device, thereby jointly performing data transmission and reducing in the communication system. interference.
  • the terminal device performs transmission of the control channel or the data channel on different resources, and may include the terminal device receiving the control channel or the data channel, and/or transmitting the control channel or the data channel.
  • FIG. 4 is a schematic flowchart of a method for D2D communication according to an embodiment of the present application.
  • the method shown in FIG. 4 can be performed by a first terminal device, which can be, for example, the terminal device 20 shown in FIG. 1.
  • the method for D2D communication includes:
  • the first terminal device determines, in a pre-configured resource pool that is used to transmit the first resource scheduling information, the first control channel resource, and in the pre-configured resource pool that can be used to transmit the second resource scheduling information. And determining a second control channel resource, where a time domain length of the first control channel resource is greater than a time domain length of the second control channel resource.
  • the first terminal device sends the first resource scheduling information on the first control channel resource, and sends the second resource scheduling information on the second control channel resource.
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel
  • the second resource scheduling information is used by the third terminal device to determine the data channel resource
  • the second terminal The device can detect the resource scheduling information based on the time domain length of the first control channel resource
  • the third terminal device can detect the resource scheduling based on the time domain length of the first control channel resource and/or the time domain length of the second control channel resource. information.
  • the first terminal device is, for example, a vehicle user equipment (VUE) or a Pedestrian User Equipment (PUE), and the second terminal device is, for example, an in-vehicle terminal or a handheld terminal, and the third terminal device is, for example, an in-vehicle terminal or Handheld Terminal.
  • VUE vehicle user equipment
  • PUE Pedestrian User Equipment
  • the resource scheduling information may also be referred to as Scheduling Assignment (SA) information.
  • SA Scheduling Assignment
  • the first terminal device needs to separately send two resource scheduling information with different time domain lengths, that is, the first resource scheduling information and the second resource scheduling information, in different resource pools.
  • the first terminal device determines the first control channel resource in the pre-configured resource pool that is used to transmit the first resource scheduling information, and sends the first resource scheduling information on the first control channel resource, and the first terminal device further
  • the second control channel resource is determined in the pre-configured resource pool that is used to transmit the second resource scheduling information, and the second resource scheduling information is sent on the second control channel resource.
  • the time domain length of the first control channel resource is greater than the time domain length of the second control channel resource, and the first resource scheduling information sent by the first control channel resource is applied to the second terminal device to determine the data channel resource of the first terminal device. And the resource scheduling information sent on the second control channel is used by the third terminal device to determine the data channel resource of the first terminal device.
  • the third terminal device can be based on the time domain length of the first control channel resource (eg, one TTI long)
  • the resource scheduling information is detected with a time domain length of the second control channel resource (eg, one sTTI long). Therefore, the first terminal device simultaneously sends the two resource scheduling information, so that the second terminal device and the third terminal device can respectively detect the first resource scheduling information and the second resource scheduling information of the first terminal device, thereby acquiring the first terminal.
  • the first resource scheduling information is sent on the first control channel resource
  • the second resource scheduling information is sent on the second control channel resource
  • the first control channel resource is preconfigured and can be used to transmit the first resource scheduling.
  • the transmission resource in the resource pool of the information, the second control channel resource is also a pre-configured transmission resource in the resource pool that can be used to transmit the second resource scheduling information, and thus the second terminal device and the third terminal device are in the corresponding resource pool.
  • the resource scheduling information required by each can be effectively detected, and corresponding operations are performed.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second terminal device supports the communication protocol of the Release Release-14 and does not support the communication protocol of the Release Release-15.
  • the first terminal device and the third terminal device support the communication protocol of the Release Release-15 or the Release-9 Other versions of the communication protocol.
  • a terminal device that supports a communication protocol of Release-14 and does not support Release-15 will support a communication protocol of Release-15.
  • the terminal device is simply referred to as the terminal device of Release-15.
  • the terminal device of Release-15 may include a terminal device supporting Release-15 or a terminal device supporting other versions of Release-15, for example, a terminal device supporting Release-16 of Release-15.
  • the terminal device of the Release-14 for example, the terminal device 30 shown in FIG. 1 needs to detect the resource scheduling information sent by the terminal device of Release-15, for example, the terminal device 20, to obtain the resource occupancy of the terminal device 20.
  • the terminal device of the Release-15 for example, the terminal device 40 shown in FIG. 1 also needs to detect the resource scheduling information sent by the terminal device 20 to obtain the resource occupancy of the terminal device 20.
  • the terminal device 40 is capable of detecting resource scheduling information transmitted on the sTTI
  • the terminal device 30 is only capable of detecting resource scheduling information transmitted on the TTI. That is, the time domain length of the resource scheduling information detected by the terminal device 30 and the terminal device 40 is different.
  • the terminal device 20 transmits the first resource scheduling information and the second resource scheduling information, respectively, and the time domain length of the first control channel resource used for sending the first resource scheduling information is greater than the number used to send the second resource scheduling information.
  • the time domain length of the second control channel resource so that the terminal device 30 can detect the first resource scheduling information on the first control channel resource and determine the data channel resource of the terminal device 20 according to the first resource scheduling information, and the terminal device 40 can also The second resource scheduling information is detected on the second control channel resource and the data channel resource of the terminal device 20 is determined according to the second resource scheduling information.
  • the location of the first control channel resource used by the terminal device 20 for transmitting the first resource scheduling information has a corresponding relationship with the location of the data channel resource, and the terminal device 30 can determine the terminal device 20 according to the location of the first control channel resource.
  • the frequency domain start position of the data channel resource, and the frequency domain width occupied by the data channel resource is obtained from the first resource scheduling information.
  • the location of the second control channel resource used by the terminal device 20 for transmitting the second resource scheduling information is also related to the location of the data channel resource, and the terminal device 40 can determine the terminal according to the location of the second control channel resource.
  • the frequency domain start position of the data channel resource of the device 20, and the frequency domain width occupied by the data channel resource is obtained from the second resource scheduling information.
  • the embodiment of the present application provides two resource allocation manners for the first terminal device to separately transmit the first scheduling information and the second resource scheduling information. The details will be described below with reference to FIGS. 5 to 8.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the frequency domain on the first control channel resource and the second control channel Between the resources; or the first control channel resource is located between the second control channel resource and the data channel resource in the frequency domain.
  • the data channel resource is adjacent to or non-adjacent to the first control channel resource in the frequency domain, and the data channel resource is adjacent or non-adjacent to the second control channel resource in the frequency domain, where the A control channel resource is adjacent or non-adjacent to the second control channel resource in the frequency domain.
  • a resource diagram of the embodiment of the present application as shown in FIG. 5 assumes that the sTTI occupies one time slot.
  • a pre-configured resource pool for transmitting first resource scheduling information between a pre-configured resource pool for transmitting second resource scheduling information and a data channel resource pool for transmitting a data channel, and being used for transmitting the first
  • the data channel scheduled by the resource scheduling information occupying different frequency domain resources has different starting positions in the frequency domain in the data channel resource pool.
  • the data channel scheduled by the resource scheduling information occupying different frequency domain resources has different starting positions in the frequency domain in the data channel resource pool.
  • Each TTI shown in FIG. 5 includes two sTTIs, the number of subbands available for transmitting a data channel in each sTTI, equal to the number of resources in the sTTI available for transmitting second resource scheduling information, and the sTTI
  • the plurality of resources that can be used to transmit the second resource scheduling information are in one-to-one correspondence with the plurality of sub-bands available for transmitting the data channel.
  • the number of resources that can be used to transmit the first resource scheduling information is equal to the number of the plurality of sub-bands that can be used to transmit the data channel in each sTTI.
  • the data channel resources in the same sub-band and occupying different sTTIs in the TTI correspond to the same resource in the TTI for transmitting the first resource scheduling information.
  • a resource pool that can be used to transmit a data channel includes three sub-bands, and the number of resources that can be used to transmit the second resource scheduling information is also three, and each TTI time corresponding to the sTTI is The number of resources that can be used to transmit the first resource scheduling information is also three.
  • the plurality of sub-bands for transmitting the data channel are in one-to-one correspondence with the plurality of resources for transmitting the second resource scheduling information in the sTTI; in each TTI, the same sub-band is located and occupied differently
  • the two data channel resources of the sTTI correspond to the same resource in the TTI for transmitting the first resource scheduling information.
  • the first terminal device determines the first control channel resource in the resource pool for transmitting the first resource scheduling information, and sends the first resource scheduling information on the first control channel resource.
  • the second terminal device may detect the first resource scheduling information in the pre-configured resource pool for transmitting the first resource scheduling information, so as to determine the scheduling according to the location of the first control channel resource that detects the first resource scheduling information.
  • the location of the data channel resource where the data channel is located, and the frequency domain size and other information of the data channel resource are obtained from the first resource scheduling information.
  • the third terminal device may detect the second resource scheduling information in the pre-configured resource pool for transmitting the second resource scheduling information, so as to determine the scheduling according to the location of the second control channel resource that detects the second resource scheduling information.
  • the location of the data channel resource where the data channel is located, and the frequency domain size and other information of the data channel resource are obtained from the second resource scheduling information.
  • a pre-configured resource pool that can be used to transmit second resource scheduling information is located between a pre-configured resource pool that can be used to transmit first resource scheduling information and a data channel resource pool that is used to transmit data channels. And in the resource pool used for transmitting the first resource scheduling information, the data channel scheduled by the resource scheduling information occupying different frequency domain resources has different starting positions in the frequency domain in the data channel resource pool. Similarly, in the resource pool for transmitting the second resource scheduling information, the data channel scheduled by the resource scheduling information occupying different frequency domain resources has different starting positions in the frequency domain in the data channel resource pool.
  • Each TTI shown in FIG. 6 includes two sTTIs, the number of subbands available for transmitting a data channel in each sTTI, equal to the number of resources in the sTTI available for transmitting second resource scheduling information, and the sTTI
  • the plurality of resources that can be used to transmit the second resource scheduling information are in one-to-one correspondence with the plurality of sub-bands available for transmitting the data channel.
  • the number of resources that can be used to transmit the first resource scheduling information is equal to the number of the plurality of sub-bands that can be used to transmit the data channel in each sTTI.
  • the data channel resources in the same sub-band and occupying different sTTIs in the TTI correspond to the same resource in the TTI for transmitting the first resource scheduling information.
  • a resource pool that can be used to transmit a data channel includes three sub-bands, and the number of resources that can be used to transmit the second resource scheduling information is also three, and each TTI time corresponding to the sTTI is The number of resources that can be used to transmit the first resource scheduling information is also three.
  • the plurality of sub-bands for transmitting the data channel are in one-to-one correspondence with the plurality of resources for transmitting the second resource scheduling information in the sTTI; in each TTI, two data located in the same sub-band and occupying different sTTIs
  • the channel resource corresponds to the same resource in the TTI for transmitting the first resource scheduling information.
  • the method further includes: the first terminal device receiving the indication information sent by the network device, where the indication information is used to indicate a location of the initial resource block in the resource pool that can be used to transmit the second resource scheduling information.
  • the configuration parameter startRB-shortPSCCH-pool may be introduced to indicate an index of the starting RB of the resource pool that can be used to transmit the second resource scheduling information.
  • Each TTI shown in FIG. 7 includes two sTTIs, the number of subbands available for transmitting a data channel in each sTTI, equal to the number of resources in the sTTI available for transmitting second resource scheduling information, and the sTTI
  • the plurality of resources that can be used to transmit the second resource scheduling information are in one-to-one correspondence with the plurality of sub-bands available for transmitting the data channel.
  • the number of resources that can be used to transmit the first resource scheduling information is equal to the number of the plurality of sub-bands that can be used to transmit the data channel in each sTTI.
  • the data channel resources in the same sub-band and occupying different sTTIs in the TTI correspond to the same resource in the TTI for transmitting the first resource scheduling information.
  • a resource pool that can be used to transmit a data channel includes three sub-bands, and the number of resources that can be used to transmit the second resource scheduling information is also three, and each TTI time corresponding to the sTTI is The number of resources that can be used to transmit the first resource scheduling information is also three.
  • the plurality of sub-bands for transmitting the data channel are in one-to-one correspondence with the plurality of resources for transmitting the second resource scheduling information in the sTTI; in each TTI, located in the same sub-band and occupying different sTTIs
  • the two data channel resources correspond to the same resource in the TTI for transmitting the first resource scheduling information.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupation is located in the first sub-band.
  • the second frequency channel resource occupies at least part of the data channel
  • the second control channel resource occupies the preset size frequency domain resource at the end of the second sub-band, wherein the second sub-band is the first The next subband that is adjacent to the subband and is not occupied by the data channel.
  • the frequency domain resource of the preset size may include, for example, a preset number of PRBs, such as one PRB, two PRBs, four PRBs, or other numbers of PRBs.
  • the frequency resource of the preset preset size in each sub-band may be used to transmit the second resource scheduling information.
  • the frequency resource of the preset preset size in each sub-band may be used to transmit the second resource scheduling information, and the initial preset in each sub-band
  • the size of the frequency domain resource can be used to transmit the first resource scheduling information.
  • next sub-band referred to herein may be, for example, the next sub-band of the first sub-band number.
  • the sub-bands may be numbered in the frequency domain from low to high or from high to low, and the transmission of the control channel and the data channel is performed in the frequency domain according to the sub-band number.
  • the first resource scheduling information is transmitted on the first two PRBs of subband 3, and the data channel is transmitted on all remaining PRBs of subband 3, then the second resource scheduling information is in the next subband of subband 3 (ie, sub The last four PRBs of band 4) are uploaded, i.e., the second sub-band is the next sub-band adjacent to the first sub-band (i.e., sub-band 3) and not occupied by the data channel (i.e., sub-band 4).
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each sub-band, where the first control channel resource is in the frequency domain and the data channel Resources are adjacent.
  • the first predetermined frequency resource of each sub-band can be used to transmit the first resource scheduling information, and the terminal device starts from The transmission of the first resource scheduling information is performed based on the TTI on the frequency domain resource of the preset size.
  • the frequency resource of the preset size at the end of each sub-band can be used to transmit the second resource scheduling information, and the terminal device transmits the second resource scheduling information based on the sTTI on the frequency domain resource of the preset size. It is assumed here that sTTI is the length of one slot.
  • the data channel resource is located in the first sub-band, sub-band 1 in FIG. 8, and is adjacent to the first control channel resource in sub-band 1 for transmitting the first resource scheduling information.
  • the second control channel resource occupies a preset size of the frequency domain resource at the end of the subband 1 For example, the data transmission situation on subframe 5 in FIG.
  • the second control channel resource occupies the end of sub-band 2
  • Set the size of the frequency domain resources such as the data transmission situation on subframe 2 in FIG.
  • the second control channel resource occupies the end of the sub-band 3
  • a frequency domain resource of a preset size such as data transmission on subframe 3 in FIG.
  • the second resource scheduling information is sent on the second control channel resource, and the first resource scheduling is sent on the preset preset frequency domain resource of the subband 1
  • the information is such that the second terminal device can obtain the information of the data channel resource of the first terminal device, and the third terminal device can also obtain the information of the data channel resource, thereby performing resource sensing and selection.
  • the resource pool that can be used to transmit the first resource scheduling information and the resource pool that can be used to transmit the second resource scheduling information are pre-configured by the network device or are pre-agreed as specified in the protocol, for example, the first terminal device respectively
  • the resource pool for transmitting resource scheduling information of different lengths two resource scheduling information of different lengths are sent, so that the second terminal device and the third terminal device supporting different protocol versions can detect in the corresponding resource pools.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource is aligned with a time domain end position of the data channel resource.
  • the second control channel resource and the time domain location of the data channel resource are the same.
  • the second control channel resource carries the second resource scheduling information
  • the data channel resource corresponding to the second control channel resource carries the data channel corresponding to the second resource scheduling information
  • FIG. 9 is a schematic flowchart of a method for D2D communication according to an embodiment of the present application.
  • the method shown in FIG. 9 can be performed by a third terminal device, which can be, for example, the terminal device 40 shown in FIG. 1.
  • the method for D2D communication includes:
  • the third terminal device is in a preconfigured resource that can be used to transmit the second resource scheduling information.
  • the second resource scheduling information sent by the first terminal device is detected, where the second resource scheduling information occupies the second control channel resource, and the time domain length of the second control channel resource is smaller than the first control channel resource.
  • the first control channel resource is used by the first terminal device to send first resource scheduling information;
  • the third terminal device determines, according to the second resource scheduling information, a data channel resource used by the first terminal device to transmit a data channel;
  • the first resource scheduling information is used by the second terminal device to determine the data channel resource, and the second terminal device is configured to detect resource scheduling information based on a time domain length of the first control channel resource, where the third The terminal device is capable of detecting resource scheduling information based on a time domain length of the first control channel resource and/or a time domain length of the second control channel resource.
  • the terminal device detects the resource scheduling information sent by the other terminal device in the resource pool for transmitting the resource scheduling information of the length, based on the length of the control channel resource that can be detected by the terminal device, to obtain the resource usage of the other terminal device. Thereby data transmission is carried out jointly in the communication system and interference is avoided.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the first control channel resource in a frequency domain Between the second control channel resources; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are adjacent or not in the frequency domain. And the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the method further includes: receiving, by the third terminal device, indication information that is sent by the network device, where the indication information is used to indicate a starting resource block in a resource pool that is used to transmit the second resource scheduling information. s position.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupation is located in the first a frequency domain resource of the preset size at the end of a sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, the second control The channel resource occupies the preset size of the frequency domain resource at the end of the second sub-band, wherein the second sub-band is a next sub-band adjacent to the first sub-band and not occupied by the data channel frequency band.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each of the sub-bands, where the first control channel resource is in a frequency domain
  • the data channel resources are adjacent.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource is aligned with a time domain end position of the data channel resource.
  • the second terminal device supports a communication protocol of Release Release-14 and does not support a communication protocol of Release Release-15
  • the first terminal device and the third terminal device support a communication protocol of Release Release-15.
  • the first terminal device is an in-vehicle terminal or a handheld terminal
  • the second terminal device is an in-vehicle terminal or a handheld terminal
  • the third terminal device is an in-vehicle terminal or a handheld terminal.
  • FIG. 10 is a schematic flowchart of a method for D2D communication according to an embodiment of the present application.
  • the method illustrated in FIG. 10 may be performed by a network device, such as network device 10 shown in FIG.
  • the method for D2D communication includes:
  • the network device determines a resource pool that can be used to transmit the first resource scheduling information, and a resource pool that can be used to transmit the second resource scheduling information.
  • the network device sends indication information to the first terminal device, where the indication information is used to indicate a resource pool that can be used to transmit the first resource scheduling information, and a resource pool that can be used to transmit the second resource scheduling information, so that The first terminal device determines, in a resource pool that is used to transmit the first resource scheduling information, a first control channel resource that is used to send the first resource scheduling information, and is used to transmit the second resource scheduling information. And determining, by the resource pool, a second control channel resource for sending the second resource scheduling information, where a time domain length of the first control channel resource is greater than a time domain length of the second control channel resource.
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel
  • the second resource scheduling information is used by the third terminal device to determine the data channel.
  • a resource the second terminal device capable of detecting resource scheduling information based on a time domain length of the first control channel resource
  • the third terminal device being capable of being based on a time domain length of the first control channel resource and/or the The time domain length of the second control channel resource detects resource scheduling information.
  • the network device pre-configures a resource pool that can be used to transmit resource scheduling information of different lengths, so that the first terminal device can separately send two resource scheduling information of different lengths in different preset resource pools, so that different protocol versions are supported.
  • the second terminal device and the third terminal device are both capable of detecting the resource scheduling information of the first terminal device in the respective resource pools to obtain the resource usage of the first terminal device, thereby jointly performing data transmission in the communication system. And reduce interference.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the first control channel resource in a frequency domain Between the second control channel resources; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are adjacent or not in the frequency domain. And the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the indication information includes information of a starting resource block in a resource pool that is used to transmit the second resource scheduling information, for example, an index of the starting resource block.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupation is located in the first a frequency domain resource of the preset size at the end of a sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, the second control The channel resource occupies the preset size of the frequency domain resource at the end of the second sub-band, wherein the second sub-band is a next sub-band adjacent to the first sub-band and not occupied by the data channel frequency band.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each of the sub-bands, where the first control channel resource is in a frequency domain
  • the data channel resources are adjacent.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource is aligned with a time domain end position of the data channel resource.
  • the second terminal device supports a communication protocol of Release Release-14 and does not support a communication protocol of Release Release-15
  • the first terminal device and the third terminal device support a communication protocol of Release Release-15.
  • the first terminal device is an in-vehicle terminal or a handheld terminal
  • the second terminal device is an in-vehicle terminal or a handheld terminal
  • the third terminal device is an in-vehicle terminal or a handheld terminal.
  • control channel resources and data channel resources pre-configured by the network device may refer to the related descriptions of the first terminal device in FIG. 4 to FIG. 8 for brevity, and details are not described herein again.
  • 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 implemented in the present application.
  • the implementation of the examples constitutes any limitation.
  • FIG. 11 is a schematic block diagram of a terminal device 1100 according to an embodiment of the present application.
  • the terminal device is a first terminal device, and the first terminal device 1100 includes a determining unit 1110 and a transmitting unit 1120. among them:
  • a determining unit 1110 configured to determine, in a pre-configured resource pool that is used to transmit the first resource scheduling information, the first control channel resource, and in the pre-configured resource pool that is used to transmit the second resource scheduling information, Determining a second control channel resource, where a time domain length of the first control channel resource is greater than a time domain length of the second control channel resource;
  • the transmitting unit 1120 is configured to send first resource scheduling information on the first control channel resource, and send second resource scheduling information on the second control channel resource;
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel
  • the second resource scheduling information is used by the third terminal device to determine the data channel.
  • a resource the second terminal device capable of detecting resource scheduling information based on a time domain length of the first control channel resource
  • the third terminal device being capable of being based on a time domain length of the first control channel resource and/or the The time domain length of the second control channel resource detects resource scheduling information.
  • the first terminal device sends the resource scheduling information of different lengths in the resource pool for transmitting the resource scheduling information of different lengths, so that the second terminal device and the third terminal device supporting different protocol versions can be
  • the resource scheduling information of the first terminal device is detected in the corresponding resource pool to obtain the resource usage of the first terminal device, thereby jointly performing data transmission and reducing interference in the communication system.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the first control channel resource in a frequency domain Between the second control channel resources; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are adjacent or not in the frequency domain. And the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the transmitting unit 1120 is further configured to: receive indication information sent by the network device, where the indication information is used to indicate a location of a starting resource block in a resource pool that is used to transmit the second resource scheduling information.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupation is located in the first a frequency domain resource of the preset size at the end of a sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, the second control The channel resource occupies the preset size of the frequency domain resource at the end of the second sub-band, wherein the second sub-band is a next sub-band adjacent to the first sub-band and not occupied by the data channel frequency band.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each of the sub-bands, where the first control channel resource is in a frequency domain
  • the data channel resources are adjacent.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource is aligned with a time domain end position of the data channel resource.
  • the second terminal device supports a communication protocol of Release Release-14 and does not support a communication protocol of Release Release-15
  • the first terminal device and the third terminal device support a communication protocol of Release Release-15.
  • the first terminal device is an in-vehicle terminal or a handheld terminal
  • the second terminal device is an in-vehicle terminal or a handheld terminal
  • the third terminal device is an in-vehicle terminal or a handheld terminal.
  • FIG. 12 is a schematic block diagram of a terminal device 1200 according to an embodiment of the present application.
  • the terminal device is a third terminal device, and the third terminal device 1200 includes a detecting unit 1210 and a determining unit 1220. among them:
  • the detecting unit 1210 is configured to detect second resource scheduling information in a resource pool that is preconfigured to transmit second resource scheduling information, where the second resource scheduling information occupies a second control channel resource, where the second The time domain length of the control channel resource is smaller than the time domain length of the first control channel resource, where the first control channel resource is a resource occupied by the first resource scheduling information sent by the first terminal device, and the first control channel
  • the resource is determined by the first terminal device in a resource pool that can be used to transmit the first resource scheduling information;
  • a determining unit 1220 configured to determine, according to the second resource scheduling information, a data channel resource used by the first terminal device to transmit a data channel;
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel, where the second terminal device can be based on a time domain of the first control channel resource.
  • the length detection resource scheduling information, the third terminal device is capable of detecting resource scheduling information based on a time domain length of the first control channel resource and/or a time domain length of the second control channel resource.
  • the terminal device detects the resource scheduling signal sent by the other terminal device in the resource pool for transmitting the resource scheduling information of the length based on the length of the control channel resource that can be detected by the terminal device.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the first control channel resource in a frequency domain Between the second control channel resources; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are adjacent or not in the frequency domain. And the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the third terminal device further includes: a transmitting unit, configured to: receive indication information sent by the network device, where the indication information is used to indicate a start in a resource pool that is used to transmit the second resource scheduling information The location of the resource block.
  • a transmitting unit configured to: receive indication information sent by the network device, where the indication information is used to indicate a start in a resource pool that is used to transmit the second resource scheduling information The location of the resource block.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupation is located in the first a frequency domain resource of the preset size at the end of a sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, the second control The channel resource occupies the preset size of the frequency domain resource at the end of the second sub-band, wherein the second sub-band is a next sub-band adjacent to the first sub-band and not occupied by the data channel frequency band.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each of the sub-bands, where the first control channel resource is in a frequency domain
  • the data channel resources are adjacent.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource is aligned with a time domain end position of the data channel resource.
  • the second terminal device supports a communication protocol of version Release-14 and does not support the version.
  • the first terminal device and the third terminal device support a communication protocol of Release Release-15.
  • the first terminal device is an in-vehicle terminal or a handheld terminal
  • the second terminal device is an in-vehicle terminal or a handheld terminal
  • the third terminal device is an in-vehicle terminal or a handheld terminal.
  • FIG. 13 is a schematic block diagram of a network device 1300 in accordance with an embodiment of the present application. As shown in FIG. 13, the network device 1300 includes a determining unit 1310 and a transmitting unit 1320. among them:
  • a determining unit 1310 configured to determine a resource pool that can be used to transmit the first resource scheduling information, and a resource pool that can be used to transmit the second resource scheduling information;
  • the transmitting unit 1320 is configured to send, to the first terminal device, indication information, where the indication information is used to indicate a resource pool that can be used to transmit the first resource scheduling information, and a resource pool that can be used to transmit the second resource scheduling information, so as to facilitate the Determining, by the first terminal device, a first control channel resource for transmitting the first resource scheduling information, and a resource pool that can be used for transmitting the second resource scheduling information, in a resource pool that is used to transmit the first resource scheduling information Determining, by the second control channel resource, the second control channel resource, where a time domain length of the first control channel resource is greater than a time domain length of the second control channel resource;
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel
  • the second resource scheduling information is used by the third terminal device to determine the data channel.
  • a resource the second terminal device capable of detecting resource scheduling information based on a time domain length of the first control channel resource
  • the third terminal device being capable of being based on a time domain length of the first control channel resource and/or the The time domain length of the second control channel resource detects resource scheduling information.
  • the network device pre-configures a resource pool that can be used to transmit resource scheduling information of different lengths, so that the first terminal device can separately send two resource scheduling information of different lengths in different preset resource pools, so that different protocol versions are supported.
  • the second terminal device and the third terminal device are both capable of detecting the resource scheduling information of the first terminal device in the respective resource pools to obtain the resource usage of the first terminal device, thereby jointly performing data transmission in the communication system. And reduce interference.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the first control channel resource in a frequency domain Between the second control channel resources; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are adjacent or not in the frequency domain. And the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the indication information includes information of a starting resource block in a resource pool that is used to transmit the second resource scheduling information.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupation is located in the first a frequency domain resource of the preset size at the end of a sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, the second control The channel resource occupies the preset size of the frequency domain resource at the end of the second sub-band, wherein the second sub-band is a next sub-band adjacent to the first sub-band and not occupied by the data channel frequency band.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each of the sub-bands, where the first control channel resource is in a frequency domain
  • the data channel resources are adjacent.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the second control channel resource is aligned with a time domain start position of the data channel resource, and/or the second control channel resource is aligned with a time domain end position of the data channel resource.
  • the second terminal device supports a communication protocol of Release Release-14 and does not support a communication protocol of Release Release-15
  • the first terminal device and the third terminal device support a communication protocol of Release Release-15.
  • the first terminal device is an in-vehicle terminal or a handheld terminal
  • the second terminal device is an in-vehicle terminal or a handheld terminal
  • the third terminal device is an in-vehicle terminal or a handheld terminal.
  • FIG. 14 is a schematic structural diagram of a terminal device 1400 according to an embodiment of the present application.
  • the terminal device is a first terminal device, and the first terminal device includes a processor 1410, a transceiver 1420, and a memory 1430, wherein the processor 1410, the transceiver 1420, and the memory 1430 They communicate with each other through internal connection paths.
  • the memory 1430 is configured to store instructions for executing the instructions stored by the memory 1430 to control the transceiver 1420 to receive signals or transmit signals.
  • the processor 1410 is configured to:
  • the time domain length of the first control channel resource is greater than the time domain length of the second control channel resource
  • the transceiver 1420 is configured to: send first resource scheduling information on the first control channel resource, and send second resource scheduling information on the second control channel resource;
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel
  • the second resource scheduling information is used by the third terminal device to determine the data channel.
  • a resource the second terminal device capable of detecting resource scheduling information based on a time domain length of the first control channel resource
  • the third terminal device being capable of being based on a time domain length of the first control channel resource and/or the The time domain length of the second control channel resource detects resource scheduling information.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the first control channel resource in a frequency domain Between the second control channel resources; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are adjacent or not in the frequency domain. And the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the method further includes: the first terminal device receiving indication information sent by the network device, where the indication information is used to indicate a starting resource block in a resource pool that is used to transmit the second resource scheduling information. s position.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupation is located in the first a predetermined size of the frequency domain resource at the end of a sub-band; if the end of the first sub-band The frequency domain resource of the preset size is at least partially occupied by the data channel, and the second control channel resource occupies the frequency domain resource of the preset size at the end of the second sub-band, where the The two subbands are the next subband adjacent to the first subband and not occupied by the data channel.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each of the sub-bands, where the first control channel resource is in a frequency domain
  • the data channel resources are adjacent.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the processor 1410 may be a central processing unit (CPU), and the processor 1410 may also be another general-purpose processor, a digital signal processor (Digital Signal Processor, DSP). ), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1430 can include read only memory and random access memory and provides instructions and data to the processor 1410. A portion of the memory 1430 can also include a non-volatile random access memory.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1410 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 1410.
  • 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 1430, and the processor 1410 reads the information in the memory 1430 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the terminal device 1400 may correspond to the terminal device for performing the method 400 in the foregoing method 400, and the terminal device 1100 according to the embodiment of the present application, and each unit or module in the terminal device 1400 is used for Performing the method performed by the terminal device in the method 400 In the respective operations or processes, detailed descriptions thereof will be omitted herein to avoid redundancy.
  • FIG. 15 is a schematic structural diagram of a terminal device 1500 according to an embodiment of the present application.
  • the terminal device is a third terminal device, and the third terminal device includes a processor 1510, a transceiver 1520, and a memory 1530, wherein the processor 1510, the transceiver 1520, and the memory 1530 are internally connected.
  • the pathways communicate with each other.
  • the memory 1530 is for storing instructions, and the processor 1510 is configured to execute the instructions stored by the memory 1530 to control the transceiver 1520 to receive signals or send signals.
  • the processor 1510 is configured to:
  • the second resource scheduling information sent by the first terminal device is detected, where the second resource scheduling information occupies the second control channel resource, where the second resource resource is configured to transmit the second resource scheduling information.
  • the time domain length of the control channel resource is smaller than the time domain length of the first control channel resource, where the first control channel resource is used by the first terminal device to send the first resource scheduling information;
  • the first resource scheduling information is used by the second terminal device to determine the data channel resource, and the second terminal device is configured to detect resource scheduling information based on a time domain length of the first control channel resource, where the third The terminal device is capable of detecting resource scheduling information based on a time domain length of the first control channel resource and/or a time domain length of the second control channel resource.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the first control channel resource in a frequency domain Between the second control channel resources; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are adjacent or not in the frequency domain. And the first control channel resource and the second control channel resource are adjacent or not adjacent in the frequency domain.
  • the method further includes: receiving, by the third terminal device, indication information that is sent by the network device, where the indication information is used to indicate a starting resource block in a resource pool that is used to transmit the second resource scheduling information. s position.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupies the preset size frequency domain resource at the end of the first sub-band; if the end of the first sub-band The frequency domain resource of the preset size is at least partially occupied by the data channel, and the second control channel resource occupies the preset size frequency domain resource at the end of the second subband, where The second sub-band is the next sub-band adjacent to the first sub-band and not occupied by the data channel.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each of the sub-bands, where the first control channel resource is in a frequency domain
  • the data channel resources are adjacent.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the processor 1510 may be a central processing unit (CPU), and the processor 1510 may also be another general-purpose processor, a digital signal processor (Digital Signal Processor, DSP). ), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1530 can include read only memory and random access memory and provides instructions and data to the processor 1510. A portion of the memory 1530 may also include a non-volatile random access memory.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1510 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 1510.
  • 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 1530, and the processor 1510 reads the information in the memory 1530 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the terminal device 1500 may correspond to the foregoing method 900 for performing The terminal device of the method 900, and the terminal device 1200 according to the embodiment of the present application, and each unit or module in the terminal device 1500 is used to perform each action or process performed by the terminal device in the method 900, where In order to avoid redundancy, a detailed description thereof will be omitted.
  • FIG. 16 is a schematic structural diagram of a network device 1600 according to an embodiment of the present application.
  • the network device includes a processor 1610, a transceiver 1620, and a memory 1630, wherein the processor 1610, the transceiver 1620, and the memory 1630 communicate with each other through an internal connection path.
  • the memory 1630 is configured to store instructions for executing the instructions stored by the memory 1630 to control the transceiver 1620 to receive signals or transmit signals.
  • the processor 1610 is configured to:
  • the transceiver 1620 is configured to: send, to the first terminal device, indication information, where the indication information is used to indicate a resource pool that can be used to transmit the first resource scheduling information, and a resource pool that can be used to transmit the second resource scheduling information, so as to facilitate
  • the first terminal device determines, in a resource pool that is used to transmit the first resource scheduling information, a first control channel resource used to send the first resource scheduling information, and a resource that can be used to transmit the second resource scheduling information. Determining, in the pool, a second control channel resource for sending the second resource scheduling information, where a time domain length of the first control channel resource is greater than a time domain length of the second control channel resource;
  • the first resource scheduling information is used by the second terminal device to determine a data channel resource used by the first terminal device to transmit a data channel
  • the second resource scheduling information is used by the third terminal device to determine the data channel.
  • a resource the second terminal device capable of detecting resource scheduling information based on a time domain length of the first control channel resource
  • the third terminal device being capable of being based on a time domain length of the first control channel resource and/or the The time domain length of the second control channel resource detects resource scheduling information.
  • the second control channel resource is located between the first control channel resource and the data channel resource in a frequency domain; or the data channel is located in the first control channel resource in a frequency domain Between the second control channel resources; or the first control channel resource is located between the second control channel resource and the data channel resource in a frequency domain.
  • the data channel resource is adjacent or non-adjacent to the first control channel resource in a frequency domain, and the data channel resource and the second control channel resource are adjacent or not in the frequency domain. And the first control channel resource and the second control channel resource are adjacent or not in the frequency domain adjacent.
  • the indication information includes information of a starting resource block in a resource pool that is used to transmit the second resource scheduling information.
  • a resource pool that is used to transmit the second resource scheduling information includes a preset size frequency domain resource at the end of each of the plurality of subbands.
  • the second control channel resource occupation is located in the first a frequency domain resource of the preset size at the end of a sub-band; if the frequency domain resource of the preset size at the end of the first sub-band is at least partially occupied by the data channel, the second control The channel resource occupies the preset size of the frequency domain resource at the end of the second sub-band, wherein the second sub-band is a next sub-band adjacent to the first sub-band and not occupied by the data channel frequency band.
  • a resource pool that is used to transmit the first resource scheduling information, including a starting frequency resource of a preset size of each of the sub-bands, where the first control channel resource is in a frequency domain
  • the data channel resources are adjacent.
  • the resource pool that can be used to transmit the second resource scheduling information is configured by the network device or protocol
  • the resource pool that can be used to transmit the first resource scheduling information is configured by the network device or agreed by the protocol.
  • the processor 1610 may be a central processing unit (CPU), and the processor 1610 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 1630 can include read only memory and random access memory and provides instructions and data to the processor 1610.
  • a portion of the memory 1630 can also include a non-volatile random access memory.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1610 or an instruction in the form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 1610.
  • 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 1630, and the processor 1610 reads the memory 1630.
  • the network device 1600 may correspond to the network device for performing the method 1000 in the foregoing method 1000, and the network device 1300 according to the embodiment of the present application, and each unit or module in the network device 1600 is used for The operations or processes performed by the network device in the above method 1000 are performed.
  • each unit or module in the network device 1600 is used for The operations or processes performed by the network device in the above method 1000 are performed.
  • detailed description thereof will be omitted.
  • FIG. 17 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the system chip 1700 of FIG. 17 includes an input interface 1701, an output interface 1702, at least one processor 1703, and a memory 1704.
  • the input interface 1701, the output interface 1702, the processor 1703, and the memory 1704 are interconnected by an internal connection path.
  • the processor 1703 is configured to execute code in the memory 1704.
  • the processor 1703 can implement the method 400 performed by the first terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 1703 can implement the method 900 performed by the third terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 1703 can implement the method 1000 performed by the network device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling through some interfaces, devices or units or Communication connections can be in electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one detecting unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

Abstract

本申请公开了一种D2D通信的方法、终端设备和网络设备，该方法包括：第一终端设备在预配置的可用于传输第一资源调度信息的资源池中确定第一控制信道资源，并在预配置的可用于传输第二资源调度信息的资源池中确定第二控制信道资源，第一控制信道资源的时域长度大于第二控制信道资源的时域长度；第一终端设备在第一控制信道资源上发送第一资源调度信息并在第二控制信道资源上发送第二资源调度信息，第一资源调度信息和第二资源调度信息分别用于第二终端设备和第三终端设备确定第一终端设备的数据信道资源。因此，第一终端设备在预配置的资源池中发送相应的资源调度信息，使得新旧版本的终端设备能够在通信系统中共同进行数据传输且减少相互干扰。

Description

设备对设备通信的方法、终端设备和网络设备 技术领域
本申请实施例涉及无线通信领域，并且更具体地，涉及一种设备对设备(Device to Device，D2D)通信的方法、终端设备和网络设备。
背景技术
车联网或称车对设备(Vehicle to Everything，V2X)通信系统是基于D2D通信的一种侧行链路(Sidelink，SL)传输技术，与传统的长期演进(Long Term Evolution，LTE)系统中通过基站接收或者发送数据的方式不同，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和更低的传输时延。
在车联网系统中，终端根据控制信道确定用于传输数据信道的数据信道资源，从而在相应数据信道资源上进行数据传输。在第三代合作伙伴项目(the 3rd Generation Partnership Project，3GPP)协议的版本Release-14中，该控制信道在一个传输时间间隔(Transmission Time Interval，TTI)内传输，其中一个TTI在时间上对应于一个子帧即1ms，但是，对于新版本Release-15的终端来说，为了减少时延，控制信道和数据信道可以在一个短TTI(short TTI，sTTI)内传输，例如一个sTTI在时间上对应于一个时隙即0.5ms。这样，当版本Release-14和版本Release-15的终端在资源池中共同进行数据传输时，如果版本Release-15的终端在sTTI内发送该控制信道，那么版本Release-14的终端就无法检测该控制信道，也就无法对Release-15的终端的资源占用情况进行侦听，从而带来相互之间的干扰。
因此，如何使支持不同通信协议的终端能够在通信系统中共同进行数据传输且减少相互干扰，是一个亟待解决的问题。
发明内容
本申请实施例提供了一种D2D通信的方法、终端设备和网络设备，能够使支持不同通信协议的终端在通信系统中共同进行数据传输且减少相互干扰。
第一方面，提供了一种D2D通信的方法，包括：第一终端设备在预配 置的可用于传输第一资源调度信息的资源池中，确定第一控制信道资源，并在所述预配置的可用于传输第二资源调度信息的资源池中，确定第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；所述第一终端设备在所述第一控制信道资源上发送第一资源调度信息，并在所述第二控制信道资源上发送第二资源调度信息。
其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
因此，第一终端设备分别在用于传输不同长度的资源调度信息的资源池中，发送两种长度不同的资源调度信息，使得支持不同协议版本的第二终端设备和第三终端设备均能够在各自对应的资源池中检测到第一终端设备的资源调度信息，以获取第一终端设备的资源使用情况，从而在通信系统中共同进行数据传输并减少干扰。
在一种可能的实现方式中，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
在一种可能的实现方式中，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
在一种可能的实现方式中，所述方法还包括：所述第一终端设备接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块(Resource Block，RB)的位置。
例如，对于上述的sTTI上传输的第二控制信道资源来说，可以引入配置参数startRB-shortPSCCH-pool用来指示可用于传输第二资源调度信息的资源池的起始RB的索引。网络设备可以为终端设备配置并下发该参数；该参数也可以是网络设备与终端设备事先约定的例如协议中规定的。
在一种可能的实现方式中，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
其中，该多个子频带中的每个子频带包含多个连续的物理资源块(Physical Resource Block，PRB)，整个系统带宽的资源分配是以子频带为粒度。
在一种可能的实现方式中，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
在一种可能的实现方式中，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上，与所述第一控制信道资源上承载的所述第一资源调度信息所对应的数据信道所占的数据信道资源相邻。
在一种可能的实现方式中，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
在一种可能的实现方式中，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
在一种可能的实现方式中，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
第二方面，提供了一种D2D通信的方法，包括：第三终端设备在预配置的可用于传输第二资源调度信息的资源池中，检测第一终端设备发送的第二资源调度信息，其中，所述第二资源调度信息占用第二控制信道资源，所述第二控制信道资源的时域长度小于第一控制信道资源的时域长度，所述第一控制信道资源用于所述第一终端设备发送第一资源调度信息；
所述第三终端设备根据所述第二资源调度信息，确定第一终端设备用于 传输数据的数据信道资源；
其中，所述第一资源调度信息用于第二终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
因此，终端设备基于自己能够检测的控制信道资源的长度，在用于传输该长度的资源调度信息的资源池中，检测其他终端设备发送的资源调度信息，以获取其他终端设备的资源使用情况，从而在通信系统中共同进行数据传输且避免了干扰。
在一种可能的实现方式中，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
在一种可能的实现方式中，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
在一种可能的实现方式中，所述方法还包括：所述第三终端设备接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
在一种可能的实现方式中，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
在一种可能的实现方式中，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
在一种可能的实现方式中，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控 制信道资源在频域上与所述数据信道资源相邻。
在一种可能的实现方式中，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
在一种可能的实现方式中，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
在一种可能的实现方式中，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
第三方面，提供了一种D2D通信的方法，包括：网络设备确定可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池；所述网络设备向第一终端设备发送指示信息，所述指示信息用于指示可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池，以便于所述第一终端设备在可用于传输第一资源调度信息的资源池中，确定用于发送所述第一资源调度信息的第一控制信道资源，并在可用于传输第二资源调度信息的资源池中，确定用于发送所述第二资源调度信息的第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
因此，网络设备预先配置可用于传输不同长度的资源调度信息的资源池，从而第一终端设备可以在预设的不同的资源池中分别发送两种长度不同的资源调度信息，使得支持不同协议版本的第二终端设备和第三终端设备均能够在各自对应的资源池中检测到第一终端设备的资源调度信息，以获取第一终端设备的资源使用情况，从而在通信系统中共同进行数据传输并减少干扰。
在一种可能的实现方式中，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
在一种可能的实现方式中，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
在一种可能的实现方式中，所述指示信息包括可用于传输所述第二资源调度信息的资源池中的起始资源块的信息例如该起始资源块的索引。
在一种可能的实现方式中，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
在一种可能的实现方式中，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
在一种可能的实现方式中，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
在一种可能的实现方式中，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
在一种可能的实现方式中，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
在一种可能的实现方式中，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
第四方面，提供了一种终端设备，该终端设备可以执行上述第一方面或第一方面的任意可选的实现方式中的第一终端设备的操作。具体地，该终端设备可以包括用于执行上述第一方面或第一方面的任意可能的实现方式中的终端设备的操作的模块单元。
第五方面，提供了一种终端设备，该终端设备可以执行上述第二方面或第二方面的任意可选的实现方式中的第三终端设备的操作。具体地，该终端设备可以包括用于执行上述第二方面或第二方面的任意可能的实现方式中的终端设备的操作的模块单元。
第六方面，提供了一种网络设备，该网络设备可以执行上述第三方面或第三方面的任意可选的实现方式中的网络设备的操作。具体地，该网络设备可以包括用于执行上述第三方面或第三方面的任意可能的实现方式中的网络设备的操作的模块单元。
第七方面，提供了一种终端设备，该终端设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该终端设备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，或者该执行使得该终端设备实现第四方面提供的第一终端设备。
第八方面，提供了一种终端设备，该终端设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该终端设备执行第二方面或第二方面的任意可能的实现方式中的方法，或者该执行使得该终端设备实现第五方面提供的第三终端设备。
第九方面，提供了一种网络设备，该网络设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该网络设备执行第三方面或第三方面的任意可能的实现方式中的方法，或者该执行使得该网络设备实现第六方面提供的网络设备。
第十方面，提供了一种计算机可读存储介质，所述计算机可读存储介质 存储有程序，所述程序使得终端设备执行上述第一方面，及其各种实现方式中的任一种D2D通信的方法。
第十一方面，提供了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程序，所述程序使得网络设备执行上述第二方面，及其各种实现方式中的任一种D2D通信的方法。
第十二方面，提供了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程序，所述程序使得网络设备执行上述第三方面，及其各种实现方式中的任一种D2D通信的方法。
第十三方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第一方面或第一方面的任意可能的实现方式中的方法。
第十四方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第二方面或第二方面的任意可能的实现方式中的方法。
第十五方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第三方面或第三方面的任意可能的实现方式中的方法。
第十六方面，提供了一种包括指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得该计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十七方面，提供了一种包括指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得该计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十八方面，提供了一种包括指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得该计算机执行上述第三方面或第三方面的任意可能的实现方式中的方法。
附图说明
图1是本申请实施例的一种应用场景的示意性架构图。
图2是控制信道资源与数据信道资源在频域上相邻的资源示意图。
图3是控制信道资源与数据信道资源在频域上不相邻的资源示意图
图4是本申请实施例的D2D通信的方法的示意性流程图。
图5是本申请实施例的一种资源分配的示意图。
图6是本申请实施例的另一种资源分配的示意图。
图7是本申请实施例的再一种资源分配的示意图。
图8是本申请实施例的再一种资源分配的示意图。
图9是本申请另一实施例的D2D通信的方法的示意性流程图。
图10是本申请再一实施例的D2D通信的方法的示意性流程图。
图11是本申请实施例的第一终端设备的示意性框图。
图12是本申请实施例的第三终端设备的示意性框图。
图13是本申请实施例的网络设备的示意性框图。
图14是本申请实施例的第一终端设备的示意性结构图。
图15是本申请实施例的第三终端设备的示意性结构图。
图16是本申请实施例的网络设备的示意性结构图。
图17是本申请实施例的系统芯片的示意性结构图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
图1是本发明实施例应用的无线通信系统的示意图，该无线通信系统可以包括至少一个网络设备10。网络设备10可以是与终端设备通信的设备。每个网络设备10可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备(例如UE)进行通信。该网络设备10可以是全球移动通讯(Global System of Mobile communication，简称“GSM”)系统或码分多址(Code Division Multiple Access，简称“CDMA”)系统中的基站(Base Transceiver Station，简称“BTS”)，也可以是宽带码分多址(Wideband Code Division Multiple Access，简称“WCDMA”)系统中的基站(NodeB，简称“NB”)，还可以是长期演进(Long Term Evolution，简称“LTE”)系统中的演进型基站(Evolutional Node B，简称“eNB或eNodeB”)，或者是云无线接入网络(Cloud Radio Access Network，简称“CRAN”)中的无线控制器， 或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，简称“PLMN”)中的网络设备等。
该无线通信系统还包括位于网络设备10覆盖范围内的多个终端设备例如终端设备20、终端设备30和终端设备40。这些终端设备可以是移动的或固定的。这些终端设备可以指接入终端、用户设备(User Equipment，简称“UE”)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称“SIP”)电话、无线本地环路(Wireless Local Loop，简称“WLL”)站、个人数字处理(Personal Digital Assistant，简称“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、可穿戴设备、未来5G网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，简称“PLMN”)中的终端设备等。
图1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三个终端设备，可选地，该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，本发明实施例对此不做限定。此外，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，但本发明实施例不限于此。
具体地，终端设备20、终端设备30和终端设备40可以以蜂窝通信模式或D2D通信模式进行通信，其中，在蜂窝通信模式中，终端设备通过与网络设备之间的蜂窝链路与其它终端设备通信；在D2D通信模式中，两个终端设备通过D2D链路即侧行链路(Sidelink，SL)直接进行通信。
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，本发明实施例对此不做任何限定。
在车联网系统中，终端设备20可以发送控制信息例如资源调度信息以用来指示终端设备20的数据信道的资源位置，该资源调度信息例如可以称调度分配(Scheduling Assignment，SA)信息。该资源调度信息指示终端设备20用于数据传输的数据信道资源，从而终端设备30检测到该资源调度信息后，就能够确定终端设备20的数据信道资源的位置，从而进行数据的接收，并且进行资源的侦听和选取。该资源调度信息携带与终端设备20的数据传输相关的信息，例如调制编码方式(Modulation Coding Mode，MCS)、时频资源分配信息、资源预留信息等。接收到该资源调度信息的终端设备30可以通过检测该资源调度信息获得终端设备20进行数据传输所使用的时频资源的位置以及资源预留信息等，从而判断终端设备20的资源使用情况。如果终端设备30不能成功检测到该资源调度信息，则可以测量所有传输资源上的能量，并且根据能量高低对所有传输资源进行排序，优先选取能量低的传输资源进行自己的数据传输。
在第三代合作伙伴项目(the 3rd Generation Partnership Project，3GPP)协议的版本Release-14中，数据传输和相应的资源调度信息的传输采用频分复用(Frequency Division Multiplexing，FDM)的方式。具体地，用于传输资源调度信息的资源池与用于传输数据的资源池有两种配置方式，即频域相邻(adjacent)和非相邻(non-adjacent)的方式。
例如图2所示的频域相邻(adjacent)的情况，用于传输资源调度信息的控制信道资源，与用于传输数据信道的数据信道资源在频域上是相邻的，整个系统带宽以子频带(也简称为子带)为粒度，每个子频带包含多个连续的物理资源块(Physical Resource Block，PRB)，每个子频带中的第一个PRB和第二个PRB可以用来传输资源调度信息(即控制信道资源在频域上占据子频带中的两个相邻的PRB)，其余的PRB为可用的数据信道资源，数据信道资源和控制信道资源的是一一对应的，并且数据信道资源的起始位置由其对应的控制信道资源的位置决定。数据信道资源可以占用一个子频带(例如子帧2上示出的被终端设备使用的数据信道资源占用子频带1)，也可以跨过多个子频带(例如子帧4上示出的被终端设备使用的数据信道资源占用子频带2和子频带3)。当数据信道资源占用多个子频带时，数据信道资源在多个子频带内是频域连续的，可以占用其他子频带内的控制信道资源，并且数据信道资源对应的控制信道资源位于该数据信道资源所在的第一个子频带中 的控制信道资源中，例如图2中子帧4中示出的数据信道资源占据了两个相邻的子频带(子频带2和子频带3)，其对应的控制信道资源在这两个子频带中的第一个子频带(子频带2)的控制信道资源内。
例如图3所示的频域非相邻(non-adjacent)的情况，控制信道资源和其对应的数据信道资源在频域上是不相邻的，数据信道资源和控制信道资源是独立配置的。但是数据信道资源的位置和控制信道资源的位置是一一对应的，数据信道资源的起始位置可由其对应的控制信道资源的位置决定。数据信道资源可以占用一个子频带(例如子帧2上示出的被终端设备使用的数据信道资源占用子频带1)，也可以占用多个子频带(例如子帧4上示出的被终端设备使用的数据信道资源占用子频带2和子频带3)。当数据信道资源占用多个子频带时，数据信道在多个子频带内是频域连续的，数据信道对应的资源调度信息位于第一个子频带中的控制信道资源中，例如图3的子帧4上示出的数据信道占据了两个相邻的子频带(子频带2和子频带3)，其数据信道对应的资源调度信息位于第一个子频带(子频带2)对应的控制信道资源内。
在3GPP协议的版本Release-15(Rel-15)中，引入了短TTI(short TTI，sTTI)，并且要求支持Release-15的终端设备使用sTTI传输数据信道，且支持Release-15的终端设备与支持Release-14(Rel-14)的终端设备可以共资源池进行数据传输，这样就对支持Release-14的终端设备的资源侦听和选取过程产生了较大的影响。因此需要Release-14的终端设备能够检测Release-15的终端设备发送控制信道例如资源调度信息或称调度分配(Scheduling Assignment，SA)信息，以获知Release-15的终端设备的资源占用情况，从而进行资源的侦听和选取。这就需要Release-15的终端设备能够发送与Release-14版本兼容的正常的控制信道。但是对于新版本Release-15的终端设备来说，为了减少时延，该控制信道和可以和数据信道同样在一个sTTI内传输，即Release-15的终端设备可以在sTTI上发送短的控制信道，例如在sTTI上发送短调度分配(short SA，sSA)信息。Release-15的终端设备可以通过检测sSA获取该控制信道的内容，并且根据该控制信道确定数据信道资源并进行数据信道的检测，而不需要等到1ms的TTI(即正常TTI(normal TTI))结束后才完成控制信道的检测，从而降低时延。
也就是说，一方面，Release-14的终端设备需要检测Release-15的终端设备发送的控制信道，以用来获取Release-15的终端设备的资源占用情况， 从而进行资源侦听和选取。另一方面，Release-15的终端设备也需要检测Release-15的终端设备发送的控制信道，以用来获取Release-15的终端设备的资源占用情况，从而进行资源侦听和选取。但是Release-15的终端设备能够检测在sTTI上发送的短的资源调度信息，而Release-14的终端设备仅能够检测在TTI上发送的正常的资源调度信息。这样就无法使支持不同通信协议的终端在通信系统中共同进行数据传输。
因此，本申请实施例一种D2D通信的方法，第一终端设备分别在用于传输不同长度的资源调度信息的资源池中，发送两种长度不同的资源调度信息，使得支持不同协议版本的第二终端设备和第三终端设备均能够在各自对应的资源池中检测到第一终端设备的资源调度信息，以获取第一终端设备的资源使用情况，从而在通信系统中共同进行数据传输并减少干扰。
应理解，本申请实施例中，终端设备在不同资源上进行控制信道或数据信道的传输，可以包括终端设备接收控制信道或数据信道，和/或，发送控制信道或数据信道。
图4是本申请实施例的D2D通信的方法的示意性流程图。图4所示的方法可以由第一终端设备执行，该第一终端设备例如可以为图1中所示的终端设备20。如图4所示，该D2D通信的方法包括：
在410中，第一终端设备在预配置的可用于传输第一资源调度信息的资源池中，确定第一控制信道资源，并在该预配置的可用于传输第二资源调度信息的资源池中，确定第二控制信道资源，其中，该第一控制信道资源的时域长度大于该第二控制信道资源的时域长度。
在420中，第一终端设备在该第一控制信道资源上发送第一资源调度信息，并在该第二控制信道资源上发送第二资源调度信息。
其中，该第一资源调度信息用于第二终端设备确定第一终端设备用于传输数据信道的数据信道资源，该第二资源调度信息用于第三终端设备确定该数据信道资源，第二终端设备能够基于该第一控制信道资源的时域长度检测资源调度信息，第三终端设备能够基于该第一控制信道资源的时域长度和/或该第二控制信道资源的时域长度检测资源调度信息。
其中，第一终端设备例如为车载终端(Vehicle User Equipment，VUE)或行人手持终端(Pedestrian User Equipment，PUE)，第二终端设备例如为车载终端或手持终端，第三终端设备例如为车载终端或手持终端。
其中，该资源调度信息也可以称为调度分配(Scheduling Assignment，SA)信息。
具体地说，由于支持不同版本你的通信协议的终端设备，其能够检测的控制信道的长度可能不同，因而，为了使支持不同版本的通信协议的其他终端设备均能够检测第一终端设备发送的该资源调度信息的内容，第一终端设备需要在不同的资源池中分别发送两个时域长度不同的资源调度信息，即第一资源调度信息和第二资源调度信息。第一终端设备在预配置的可用于传输第一资源调度信息的资源池中，确定第一控制信道资源，并在第一控制信道资源上发送第一资源调度信息，同时，第一终端设备还会在预配置的可用于传输第二资源调度信息的资源池中，确定第二控制信道资源，并在第二控制信道资源上发送第二资源调度信息。其中，第一控制信道资源的时域长度大于第二控制信道资源的时域长度，第一控制信道资源上发送的第一资源调度信息应用于第二终端设备确定第一终端设备的数据信道资源，第二控制信道上发送的资源调度信息用于第三终端设备确定第一终端设备的数据信道资源。
由于第二终端设备仅能够基于第一控制信道资源的时域长度(例如一个sTTI长)检测资源调度信息，而第三终端设备能够基于第一控制信道资源的时域长度(例如一个TTI长)和该第二控制信道资源的时域长度(例如一个sTTI长)检测资源调度信息。因而，第一终端设备同时发送两个资源调度信息，使得第二终端设备和第三终端设备能够分别检测到第一终端设备的第一资源调度信息和第二资源调度信息，从而获取第一终端设备的数据信道资源，并进行资源侦听和选取，以避免数据干扰。
由于第一资源调度信息是在第一控制信道资源上发送的，第二资源调度信息是在第二控制信道资源上发送的，并且第一控制信道资源为预配置的可用于传输第一资源调度信息的资源池中的传输资源，第二控制信道资源也为预配置的可用于传输第二资源调度信息的资源池中的传输资源，因而第二终端设备和第三终端设备在对应的资源池中能够有效地检测到各自需要的资源调度信息，并进行相应操作。
可选地，410中可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
可选地，第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，第一终端设备和第三终端设备支持版本Release-15的通信协议或者版本Release-15之后的其他版本的通信协议。
应理解，本申请实施例中，将支持版本Release-14的通信协议且不支持Release-15的通信协议的终端设备，简称为Release-14的终端设备，将支持版本Release-15的通信协议的终端设备简称为Release-15的终端设备。其中，Release-15的终端设备可以包括支持Release-15的终端设备或者支持Release-15的其他版本的终端设备，例如支持Release-15的Release-16的终端设备。
举例来说，Release-14的终端设备例如图1中所示的终端设备30，需要检测Release-15的终端设备例如终端设备20发送的资源调度信息，以获取终端设备20的资源占用情况。Release-15的终端设备例如图1中所示的终端设备40也需要检测终端设备20发送的资源调度信息，以获取终端设备20的资源占用情况。但是终端设备40能够检测在sTTI上发送的资源调度信息，而终端设备30仅能够检测在TTI上发送的资源调度信息。即终端设备30和终端设备40所检测的资源调度信息的时域长度不同。
因此，终端设备20分别发送第一资源调度信息和第二资源调度信息，并且用于发送第一资源调度信息的第一控制信道资源的时域长度，大于用于发送第二资源调度信息的第二控制信道资源的时域长度，从而终端设备30可以在第一控制信道资源上检测到第一资源调度信息并根据该第一资源调度信息确定终端设备20的数据信道资源，终端设备40也可以在第二控制信道资源上检测到第二资源调度信息并根据该第二资源调度信息确定终端设备20的数据信道资源。
例如，终端设备20用于发送第一资源调度信息的第一控制信道资源的位置，与其数据信道资源的位置之间存在对应关系，终端设备30可以根据第一控制信道资源的位置确定终端设备20的数据信道资源的频域起始位置，并从第一资源调度信息中获取该数据信道资源占用的频域宽度。同样，终端设备20用于发送第二资源调度信息的第二控制信道资源的位置，与该数据信道资源的位置之间也存在对应关系，终端设备40可以根据第二控制信道资源的位置确定终端设备20的数据信道资源的频域起始位置，并从第二资源调度信息中获取该数据信道资源占用的频域宽度。
本申请实施例提出两种资源分配方式用于第一终端设备分别传输第一调度信息和第二资源调度信息。下面结合图5至图8具体进行描述。
方式1
可选地，该第二控制信道资源在频域上位于该第一控制信道资源和该数据信道资源之间；或者该数据信道在频域上位于该第一控制信道资源和该第二控制信道资源之间；或者该第一控制信道资源在频域上位于该第二控制信道资源与该数据信道资源之间。
可选地，该数据信道资源与该第一控制信道资源在频域上相邻或者不相邻，该数据信道资源与该第二控制信道资源在频域上相邻或者不相邻，该第一控制信道资源与该第二控制信道资源在频域上相邻或者不相邻。
举例来说，如图5所示的本申请实施例的一个资源示意图，假设sTTI占据一个时隙。预配置的可用于传输第一资源调度信息的资源池，位于预配置的可用于传输第二资源调度信息的资源池以及用于传输数据信道的数据信道资源池之间，并且在用于传输第一资源调度信息的资源池中，占用不同频域资源的资源调度信息所调度的数据信道在数据信道资源池中的频域起始位置不同。同样，在用于传输第二资源调度信息的资源池中，占用不同频域资源的资源调度信息所调度的数据信道在数据信道资源池中的频域起始位置不同。
图5中示出的每个TTI包括两个sTTI，每个sTTI中可用于传输数据信道的子频带的个数，等于该sTTI中可用于传输第二资源调度信息的资源个数，并且该sTTI中可用于传输第二资源调度信息的多个资源与可用于传输数据信道的该多个子频带一一对应。同样，在该sTTI所对应的TTI中，可用于传输第一资源调度信息的资源个数，与每个sTTI中可用于传输数据信道的该多个子频带的个数相等。并且，对于某个TTI来说，该TTI中位于相同子频带且占用不同sTTI的数据信道资源，对应于该TTI内用于传输第一资源调度信息的同一个资源。
如图5所示，在每个sTTI中，可用于传输数据信道的资源池包括3个子频带，可用于传输第二资源调度信息的资源个数也为3，该sTTI对应的每个TTI时间内可用于传输第一资源调度信息的资源个数也为3。并且在每个sTTI中，用于传输数据信道的多个子频带与该sTTI中用于传输第二资源调度信息的多个资源一一对应；在每个TTI中，位于相同子频带且占用不同 sTTI的两个数据信道资源，对应于该TTI内用于传输第一资源调度信息的同一个资源。
第一终端设备在用于传输第一资源调度信息的资源池中确定第一控制信道资源，并在第一控制信道资源上发送第一资源调度信息。
第二终端设备可以在预配置的用于传输第一资源调度信息的资源池中，检测第一资源调度信息，从而根据检测到第一资源调度信息的第一控制信道资源的位置，确定其调度的数据信道所在的数据信道资源的位置，并从第一资源调度信息中获取该数据信道资源的频域大小以及其他信息。
第三终端设备可以在预配置的用于传输第二资源调度信息的资源池中，检测第二资源调度信息，从而根据检测到第二资源调度信息的第二控制信道资源的位置，确定其调度的数据信道所在的数据信道资源的位置，并从第二资源调度信息中获取该数据信道资源的频域大小以及其他信息。
又例如图6所示的另一个资源示意图，仍假设sTTI占据一个时隙。与图5不同的是，预配置的可用于传输第二资源调度信息的资源池，位于预配置的可用于传输第一资源调度信息的资源池以及用于传输数据信道的数据信道资源池之间。并且在用于传输第一资源调度信息的资源池中，占用不同频域资源的资源调度信息所调度的数据信道在数据信道资源池中的频域起始位置不同。同样，在用于传输第二资源调度信息的资源池中，占用不同频域资源的资源调度信息所调度的数据信道在数据信道资源池中的频域起始位置不同。
图6中示出的每个TTI包括两个sTTI，每个sTTI中可用于传输数据信道的子频带的个数，等于该sTTI中可用于传输第二资源调度信息的资源个数，并且该sTTI中可用于传输第二资源调度信息的多个资源与可用于传输数据信道的该多个子频带一一对应。同样，在该sTTI所对应的TTI中，可用于传输第一资源调度信息的资源个数，与每个sTTI中可用于传输数据信道的该多个子频带的个数相等。并且，对于某个TTI来说，该TTI中位于相同子频带且占用不同sTTI的数据信道资源，对应于该TTI内用于传输第一资源调度信息的同一个资源。
如图6所示，在每个sTTI中，可用于传输数据信道的资源池包括3个子频带，可用于传输第二资源调度信息的资源个数也为3，该sTTI对应的每个TTI时间内可用于传输第一资源调度信息的资源个数也为3。并且在每个 sTTI中，用于传输数据信道的多个子频带与该sTTI中用于传输第二资源调度信息的多个资源一一对应；在每个TTI中，位于相同子频带且占用不同sTTI的两个数据信道资源，对应于该TTI内用于传输第一资源调度信息的同一个资源。
其中，可选地，该方法还包括：第一终端设备接收网络设备发送的指示信息，该指示信息用于指示可用于传输第二资源调度信息的资源池中的起始资源块的位置。
例如，对于上述的sTTI上传输的第二控制信道资源来说，可以引入配置参数startRB-shortPSCCH-pool用来指示可用于传输第二资源调度信息的资源池的起始RB的索引。
图7中示出的每个TTI包括两个sTTI，每个sTTI中可用于传输数据信道的子频带的个数，等于该sTTI中可用于传输第二资源调度信息的资源个数，并且该sTTI中可用于传输第二资源调度信息的多个资源与可用于传输数据信道的该多个子频带一一对应。同样，在该sTTI所对应的TTI中，可用于传输第一资源调度信息的资源个数，与每个sTTI中可用于传输数据信道的该多个子频带的个数相等。并且，对于某个TTI来说，该TTI中位于相同子频带且占用不同sTTI的数据信道资源，对应于该TTI内用于传输第一资源调度信息的同一个资源。
如图7所示，在每个sTTI中，可用于传输数据信道的资源池包括3个子频带，可用于传输第二资源调度信息的资源个数也为3，该sTTI对应的每个TTI时间内可用于传输第一资源调度信息的资源个数也为3。并且在每个sTTI中，用于传输数据信道的多个子频带与该sTTI中用于传输第二资源调度信息的多个资源一一对应；在每个TTI中，位于相同子频带且占用不同sTTI的两个数据信道资源，对应于该TTI内用于传输第一资源调度信息的同一个资源。
方式2
可选地，可用于传输该第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
其中，可选地，若该数据信道资源所在的第一子频带的末尾的该预设大小的频域资源，未被该数据信道占用，则该第二控制信道资源占用位于该第一子频带末尾的该预设大小的频域资源；若该第一子频带的末尾的该预设大 小的频域资源，被该数据信道至少部分占用，则该第二控制信道资源占用位于第二子频带末尾的该预设大小的频域资源，其中，该第二子频带为与该第一子频带相邻且未被该数据信道占用的下一个子频带。
其中，该预设大小的频域资源例如可以包括预设数量的PRB，例如一个PRB、两个PRB、者四个PRB或者其他数目的PRB。
具体地说，对于第一控制信道资源与数据信道资源不相邻的情况，每个子频带中的末尾的预设大小的频域资源可以用于传输第二资源调度信息。对于第一控制信道资源与数据信道资源相邻的情况，每个子频带中的末尾的预设大小的频域资源可以用于传输第二资源调度信息，并且每个子频带中的起始的预设大小的频域资源可以用于传输第一资源调度信息。
应理解，这里所说的下一个子频带，例如可以是第一子频带编号的下一个编号的子频带。在频域上可以由低向高或者由高向低对子频带进行编号，控制信道和数据信道的传输按照子频带编号在频域上进行。例如，第一资源调度信息在子频带3的前两个PRB上传输，数据信道在子频带3的剩余所有PRB上传输，那么第二资源调度信息在子频带3的下一个子频带(即子频带4)的最后四个PRB上传，即，该第二子频带为与第一子频带(即子频带3)相邻且未被该数据信道占用的下一个子频带(即子频带4)。
可选地，可用于传输该第一资源调度信息的资源池，包括该每个子频带的起始的预设大小的频域资源，其中，该第一控制信道资源在频域上与该数据信道资源相邻。
举例来说，如图8所示的资源示意图，示出了3个子频带，每个子频带的起始的预设大小的频域资源上可以用来传输第一资源调度信息，终端设备在该起始的预设大小的频域资源上，基于TTI进行第一资源调度信息的传输。每个子频带的末尾的预设大小的频域资源上可以用来传输第二资源调度信息，终端设备在该末尾的预设大小的频域资源上，基于sTTI进行第二资源调度信息的传输，这里假设sTTI为一个时隙的长度。
数据信道资源位于第一子频带即图8中子频带1，且与子频带1中用于传输第一资源调度信息的第一控制信道资源相邻。
如果数据信道资源仅占用子频带1，且子频带1的末尾的预设大小的频域资源，未被数据信道占用，那么第二控制信道资源占用子频带1末尾的预设大小的频域资源，例如图8中子帧5上的数据传输情况。
如果数据信道占用连续的子频带即子频带1和子频带2，且子频带2的末尾的预设大小的频域资源，未被数据信道占用，那么第二控制信道资源占用子频带2末尾的预设大小的频域资源，例如图8中子帧2上的数据传输情况。
如果数据信道占用连续的子频带即子频带1和子频带2，且子频带2的末尾的预设大小的频域资源，被数据信道占用了一部分，那么第二控制信道资源占用子频带3末尾的预设大小的频域资源，例如图8中子帧3上的数据传输情况。
第一终端设备确定了第二控制信道资源后，在该第二控制信道资源上发送第二资源调度信息，同时在子频带1的起始的预设大小的频域资源上发送第一资源调度信息，这样，不仅第二终端设备可以获取第一终端设备的数据信道资源的信息，第三终端设备也可以获取该数据信道资源的信息，从而进行资源侦听和选择。
由于可用于传输第一资源调度信息的资源池，与可用于传输第二资源调度信息的资源池都是网络设备预先配置好的或者是事先约定例如协议中规定的，因此，第一终端设备分别在用于传输不同长度的资源调度信息的资源池中，发送两种长度不同的资源调度信息，使得支持不同协议版本的第二终端设备和第三终端设备均能够在各自对应的资源池中检测到第一终端设备的资源调度信息，以获取第一终端设备的资源使用情况，从而在通信系统中共同进行数据传输并减少干扰。
可选地，该第二控制信道资源与该数据信道资源的时域起始位置对齐，和/或该第二控制信道资源与该数据信道资源的时域末尾位置对齐。例如图8中所示，第二控制信道资源与数据信道资源的时域位置是相同的。
也就是说，该第二控制信道资源上承载第二资源调度信息，该第二控制信道资源对应的数据信道资源上承载该第二资源调度信息对应的数据信道，该第二控制信道资源与该数据信道资源的时域起始位置对齐和/或时域末尾位置对齐。
图9是本申请实施例的D2D通信的方法的示意性流程图。图9所示的方法可以由第三终端设备执行，该第三终端设备例如可以为图1中所示的终端设备40。如图9所示，该D2D通信的方法包括：
在910中，第三终端设备在预配置的可用于传输第二资源调度信息的资 源池中，检测第一终端设备发送的第二资源调度信息，其中，所述第二资源调度信息占用第二控制信道资源，所述第二控制信道资源的时域长度小于第一控制信道资源的时域长度，所述第一控制信道资源用于所述第一终端设备发送第一资源调度信息；
在920中，所述第三终端设备根据所述第二资源调度信息，确定第一终端设备用于传输数据信道的数据信道资源；
其中，所述第一资源调度信息用于第二终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
因此，终端设备基于自己能够检测的控制信道资源的长度，在用于传输该长度的资源调度信息的资源池中，检测其他终端设备发送的资源调度信息，以获取其他终端设备的资源使用情况，从而在通信系统中共同进行数据传输且避免了干扰。
可选地，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
可选地，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
可选地，所述方法还包括：所述第三终端设备接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
可选地，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
可选地，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制 信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
可选地，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
可选地，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
可选地，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
可选地，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
可选地，所述第一终端设备为车载终端或手持终端，所述第二终端设备为车载终端或手持终端，所述第三终端设备为车载终端或手持终端。
应理解，第三终端设备与第一终端设备之间的D2D通信的过程以及资源分配情况，具体可以参考前述图4至图8中针对第一终端设备的相关描述，为了简洁，在此不再赘述。
图10是本申请实施例的D2D通信的方法的示意性流程图。图10所示的方法可以由网络设备执行，该网络设备例如可以为图1中所示的网络设备10。如图10所示，该D2D通信的方法包括：
在1010中，网络设备确定可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池。
在1020中，所述网络设备向第一终端设备发送指示信息，所述指示信息用于指示可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池，以便于所述第一终端设备在可用于传输第一资源调度信息的资源池中，确定用于发送所述第一资源调度信息的第一控制信道资源，并在可用于传输第二资源调度信息的资源池中，确定用于发送所述第二资源调度信息的第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度。
其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
因此，网络设备预先配置可用于传输不同长度的资源调度信息的资源池，从而第一终端设备可以在预设的不同的资源池中分别发送两种长度不同的资源调度信息，使得支持不同协议版本的第二终端设备和第三终端设备均能够在各自对应的资源池中检测到第一终端设备的资源调度信息，以获取第一终端设备的资源使用情况，从而在通信系统中共同进行数据传输并减少干扰。
可选地，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
可选地，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
可选地，所述指示信息包括可用于传输所述第二资源调度信息的资源池中的起始资源块的信息例如该起始资源块的索引。
可选地，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
可选地，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
可选地，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
可选地，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
可选地，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
可选地，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
可选地，所述第一终端设备为车载终端或手持终端，所述第二终端设备为车载终端或手持终端，所述第三终端设备为车载终端或手持终端。
应理解，网络设备预配置的上述控制信道资源和数据信道资源，具体可以参考前述图4至图8中针对第一终端设备的相关描述，为了简洁，在此不再赘述。
还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中详细描述了根据本申请实施例的D2D通信的方法，下面将结合图11至图17，描述根据本申请实施例的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图11是根据本申请实施例的终端设备1100的示意性框图。如图11所示，该终端设备为第一终端设备，该第一终端设备1100包括确定单元1110和传输单元1120。其中：
确定单元1110，用于在预配置的可用于传输第一资源调度信息的资源池中，确定第一控制信道资源，并在所述预配置的可用于传输第二资源调度信息的资源池中，确定第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
传输单元1120，用于在所述第一控制信道资源上发送第一资源调度信息，并在所述第二控制信道资源上发送第二资源调度信息；
其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
因此，第一终端设备分别在用于传输不同长度的资源调度信息的资源池中，发送两种长度不同的资源调度信息，使得支持不同协议版本的第二终端设备和第三终端设备均能够在各自对应的资源池中检测到第一终端设备的资源调度信息，以获取第一终端设备的资源使用情况，从而在通信系统中共同进行数据传输并减少干扰。
可选地，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
可选地，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
可选地，所述传输单元1120还用于：接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
可选地，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
可选地，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
可选地，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
可选地，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
可选地，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
可选地，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
可选地，所述第一终端设备为车载终端或手持终端，所述第二终端设备为车载终端或手持终端，所述第三终端设备为车载终端或手持终端。
图12是根据本申请实施例的终端设备1200的示意性框图。如图12所示，该终端设备为第三终端设备，该第三终端设备1200包括检测单元1210和确定单元1220。其中：
检测单元1210，用于在预配置的可用于传输第二资源调度信息的资源池中，检测第二资源调度信息，其中，所述第二资源调度信息占用第二控制信道资源，所述第二控制信道资源的时域长度小于第一控制信道资源的时域长度，所述第一控制信道资源为所述第一终端设备发送的第一资源调度信息所占的资源，所述第一控制信道资源为所述第一终端设备在可用于传输第一资源调度信息的资源池中确定的；
确定单元1220，用于根据所述第二资源调度信息，确定第一终端设备用于传输数据信道的数据信道资源；
其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
因此，终端设备基于自己能够检测的控制信道资源的长度，在用于传输该长度的资源调度信息的资源池中，检测其他终端设备发送的资源调度信 息，以获取其他终端设备的资源使用情况，从而在通信系统中共同进行数据传输且避免了干扰。
可选地，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
可选地，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
可选地，所述第三终端设备还包括传输单元，用于：接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
可选地，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
可选地，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
可选地，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
可选地，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
可选地，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
可选地，所述第二终端设备支持版本Release-14的通信协议且不支持版 本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
可选地，所述第一终端设备为车载终端或手持终端，所述第二终端设备为车载终端或手持终端，所述第三终端设备为车载终端或手持终端。
图13是根据本申请实施例的网络设备1300的示意性框图。如图13所示，该网络设备1300包括确定单元1310和传输单元1320。其中：
确定单元1310，用于确定可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池；
传输单元1320，用于向第一终端设备发送指示信息，所述指示信息用于指示可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池，以便于所述第一终端设备在可用于传输第一资源调度信息的资源池中，确定用于发送所述第一资源调度信息的第一控制信道资源，并在可用于传输第二资源调度信息的资源池中，确定用于发送所述第二资源调度信息的第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
因此，网络设备预先配置可用于传输不同长度的资源调度信息的资源池，从而第一终端设备可以在预设的不同的资源池中分别发送两种长度不同的资源调度信息，使得支持不同协议版本的第二终端设备和第三终端设备均能够在各自对应的资源池中检测到第一终端设备的资源调度信息，以获取第一终端设备的资源使用情况，从而在通信系统中共同进行数据传输并减少干扰。
可选地，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
可选地，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
可选地，所述指示信息包括可用于传输所述第二资源调度信息的资源池中的起始资源块的信息。
可选地，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
可选地，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
可选地，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
可选地，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
可选地，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
可选地，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
可选地，所述第一终端设备为车载终端或手持终端，所述第二终端设备为车载终端或手持终端，所述第三终端设备为车载终端或手持终端。
图14是根据本申请实施例的终端设备1400的示意性结构图。如图14所示，该终端设备为第一终端设备，该第一终端设备包括处理器1410、收发器1420和存储器1430，其中，该处理器1410、收发器1420和存储器1430 之间通过内部连接通路互相通信。该存储器1430用于存储指令，该处理器1410用于执行该存储器1430存储的指令，以控制该收发器1420接收信号或发送信号。其中，该处理器1410用于：
在预配置的可用于传输第一资源调度信息的资源池中，确定第一控制信道资源，并在所述预配置的可用于传输第二资源调度信息的资源池中，确定第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
该收发器1420用于：在所述第一控制信道资源上发送第一资源调度信息，并在所述第二控制信道资源上发送第二资源调度信息；
其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
可选地，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
可选地，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
可选地，所述方法还包括：所述第一终端设备接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
可选地，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
可选地，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的 所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
可选地，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
可选地，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
应理解，在本申请实施例中，该处理器1410可以是中处理测单元(Central Processing Unit，CPU)，该处理器1410还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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1430可以包括只读存储器和随机存取存储器，并向处理器1410提供指令和数据。存储器1430的一部分还可以包括非易失性随机存取存储器。
在实现过程中，上述方法的各步骤可以通过处理器1410中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位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1410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1430，处理器1410读取存储器1430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。
根据本申请实施例的终端设备1400可以对应于上述方法400中用于执行方法400的终端设备，以及根据本申请实施例的终端设备1100，且该终端设备1400中的各单元或模块分别用于执行上述方法400中终端设备所执行 的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图15是根据本申请实施例的终端设备1500的示意性结构图。如图15所示，该终端设备为第三终端设备，该第三终端设备包括处理器1510、收发器1520和存储器1530，其中，该处理器1510、收发器1520和存储器1530之间通过内部连接通路互相通信。该存储器1530用于存储指令，该处理器1510用于执行该存储器1530存储的指令，以控制该收发器1520接收信号或发送信号。其中，该处理器1510用于：
在预配置的可用于传输第二资源调度信息的资源池中，检测第一终端设备发送的第二资源调度信息，其中，所述第二资源调度信息占用第二控制信道资源，所述第二控制信道资源的时域长度小于第一控制信道资源的时域长度，所述第一控制信道资源用于所述第一终端设备发送第一资源调度信息；
根据所述第二资源调度信息，确定第一终端设备用于传输数据信道的数据信道资源；
其中，所述第一资源调度信息用于第二终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
可选地，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
可选地，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
可选地，所述方法还包括：所述第三终端设备接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
可选地，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
可选地，若所述数据信道资源所在的第一子频带的末尾的所述预设大小 的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
可选地，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
可选地，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
应理解，在本申请实施例中，该处理器1510可以是中处理测单元(Central Processing Unit，CPU)，该处理器1510还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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1530可以包括只读存储器和随机存取存储器，并向处理器1510提供指令和数据。存储器1530的一部分还可以包括非易失性随机存取存储器。
在实现过程中，上述方法的各步骤可以通过处理器1510中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位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1510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1530，处理器1510读取存储器1530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。
根据本申请实施例的终端设备1500可以对应于上述方法900中用于执 行方法900的终端设备，以及根据本申请实施例的终端设备1200，且该终端设备1500中的各单元或模块分别用于执行上述方法900中终端设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图16是根据本申请实施例的网络设备1600的示意性结构图。如图16所示，该网络设备包括处理器1610、收发器1620和存储器1630，其中，该处理器1610、收发器1620和存储器1630之间通过内部连接通路互相通信。该存储器1630用于存储指令，该处理器1610用于执行该存储器1630存储的指令，以控制该收发器1620接收信号或发送信号。其中，该处理器1610用于：
确定可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池；
该收发器1620用于：向第一终端设备发送指示信息，所述指示信息用于指示可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池，以便于所述第一终端设备在可用于传输第一资源调度信息的资源池中，确定用于发送所述第一资源调度信息的第一控制信道资源，并在可用于传输第二资源调度信息的资源池中，确定用于发送所述第二资源调度信息的第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
可选地，所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
可选地，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相 邻。
可选地，所述指示信息包括可用于传输所述第二资源调度信息的资源池中的起始资源块的信息。
可选地，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
可选地，若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
可选地，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
可选地，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
应理解，在本申请实施例中，该处理器1610可以是中央处理单元(Central Processing Unit，CPU)，该处理器1610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1630可以包括只读存储器和随机存取存储器，并向处理器1610提供指令和数据。存储器1630的一部分还可以包括非易失性随机存取存储器。在实现过程中，上述方法的各步骤可以通过处理器1610中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位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1610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1630，处理器1610读取存储器1630 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。
根据本申请实施例的网络设备1600可以对应于上述方法1000中用于执行方法1000的网络设备，以及根据本申请实施例的网络设备1300，且该网络设备1600中的各单元或模块分别用于执行上述方法1000中网络设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图17是本申请实施例的系统芯片的一个示意性结构图。图17的系统芯片1700包括输入接口1701、输出接口1702、至少一个处理器1703、存储器1704，所述输入接口1701、输出接口1702、所述处理器1703以及存储器1704之间通过内部连接通路互相连接。所述处理器1703用于执行所述存储器1704中的代码。
可选地，当所述代码被执行时，所述处理器1703可以实现方法实施例中由第一终端设备执行的方法400。为了简洁，这里不再赘述。
可选地，当所述代码被执行时，所述处理器1703可以实现方法实施例中由第三终端设备执行的方法900。为了简洁，这里不再赘述。
可选地，当所述代码被执行时，所述处理器1703可以实现方法实施例中由网络设备执行的方法1000。为了简洁，这里不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或 通信连接，可以是电性，机械或其它的形式。
该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检测单元中，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。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(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。
以上，仅为本申请的具体实施方式，但本申请实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请适合私利的保护范围之内。因此，本申请实施例的保护范围应该以权利要求的保护范围为准。

Claims (60)

  1. 一种设备对设备D2D通信的方法，其特征在于，所述方法包括：
    第一终端设备在预配置的可用于传输第一资源调度信息的资源池中，确定第一控制信道资源，并在所述预配置的可用于传输第二资源调度信息的资源池中，确定第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
    所述第一终端设备在所述第一控制信道资源上发送第一资源调度信息，并在所述第二控制信道资源上发送第二资源调度信息；
    其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
  2. 根据权利要求1所述的方法，其特征在于，
    所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者
    所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者
    所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
  3. 根据权利要求2所述的方法，其特征在于，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的 预设大小的频域资源。
  6. 根据权利要求5所述的方法，其特征在于，
    若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；
    若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
  7. 根据权利要求5或6所述的方法，其特征在于，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
  11. 一种设备对设备D2D通信的方法，其特征在于，所述方法包括：
    第三终端设备在预配置的可用于传输第二资源调度信息的资源池中，检测第一终端设备发送的第二资源调度信息，其中，所述第二资源调度信息占用第二控制信道资源，所述第二控制信道资源的时域长度小于第一控制信道资源的时域长度，所述第一控制信道资源用于所述第一终端设备发送第一资源调度信息；
    所述第三终端设备根据所述第二资源调度信息，确定第一终端设备用于传输数据信道的数据信道资源；
    其中，所述第一资源调度信息用于第二终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源 调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
  12. 根据权利要求11所述的方法，其特征在于，
    所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者
    所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者
    所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
  13. 根据权利要求12所述的方法，其特征在于，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
  14. 根据权利要求11至13中任一项所述的方法，其特征在于，所述方法还包括：
    所述第三终端设备接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
  15. 根据权利要求11至14中任一项所述的方法，其特征在于，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
  16. 根据权利要求15所述的方法，其特征在于，
    若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；
    若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
  17. 根据权利要求15或16所述的方法，其特征在于，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
  18. 根据权利要求11至17中任一项所述的方法，其特征在于，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
  19. 根据权利要求11至18中任一项所述的方法，其特征在于，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
  20. 根据权利要求11至19中任一项所述的方法，其特征在于，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
  21. 一种设备对设备D2D通信的方法，其特征在于，所述方法包括：
    网络设备确定可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池；
    所述网络设备向第一终端设备发送指示信息，所述指示信息用于指示可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池，以便于所述第一终端设备在可用于传输第一资源调度信息的资源池中，确定用于发送所述第一资源调度信息的第一控制信道资源，并在可用于传输第二资源调度信息的资源池中，确定用于发送所述第二资源调度信息的第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
    其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
  22. 根据权利要求21所述的方法，其特征在于，
    所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者
    所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者
    所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
  23. 根据权利要求22所述的方法，其特征在于，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
  24. 根据权利要求21至23中任一项所述的方法，其特征在于，所述指示信息包括可用于传输所述第二资源调度信息的资源池中的起始资源块的信息。
  25. 根据权利要求21至24中任一项所述的方法，其特征在于，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
  26. 根据权利要求25所述的方法，其特征在于，
    若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；
    若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
  27. 根据权利要求25或26所述的方法，其特征在于，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
  28. 根据权利要求21至27中任一项所述的方法，其特征在于，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
  29. 根据权利要求21至28中任一项所述的方法，其特征在于，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
  30. 根据权利要求21至29中任一项所述的方法，其特征在于，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信 协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
  31. 一种终端设备，其特征在于，所述终端设备为第一终端设备，所述第一终端设备包括：
    确定单元，用于在预配置的可用于传输第一资源调度信息的资源池中，确定第一控制信道资源，并在所述预配置的可用于传输第二资源调度信息的资源池中，确定第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
    传输单元，用于在所述第一控制信道资源上发送第一资源调度信息，并在所述第二控制信道资源上发送第二资源调度信息；
    其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
  32. 根据权利要求31所述的终端设备，其特征在于，
    所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者
    所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者
    所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
  33. 根据权利要求32所述的终端设备，其特征在于，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
  34. 根据权利要求31至33中任一项所述的终端设备，其特征在于，所述传输单元还用于：
    接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
  35. 根据权利要求31至34中任一项所述的终端设备，其特征在于，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
  36. 根据权利要求35所述的终端设备，其特征在于，
    若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；
    若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
  37. 根据权利要求35或36所述的终端设备，其特征在于，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
  38. 根据权利要求31至37中任一项所述的终端设备，其特征在于，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
  39. 根据权利要求31至38中任一项所述的终端设备，其特征在于，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
  40. 根据权利要求31至39中任一项所述的终端设备，其特征在于，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
  41. 一种终端设备，其特征在于，所述终端设备为第三终端设备，所述第三终端设备包括：
    检测单元，用于在预配置的可用于传输第二资源调度信息的资源池中，检测第一终端设备发送的第二资源调度信息，其中，所述第二资源调度信息占用第二控制信道资源，所述第二控制信道资源的时域长度小于第一控制信道资源的时域长度，所述第一控制信道资源用于所述第一终端设备发送第一资源调度信息；
    确定单元，用于根据所述第二资源调度信息，确定第一终端设备用于传输数据信道的数据信道资源；
    其中，所述第一资源调度信息用于第二终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
  42. 根据权利要求41所述的终端设备，其特征在于，
    所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者
    所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者
    所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
  43. 根据权利要求42所述的终端设备，其特征在于，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
  44. 根据权利要求41至43中任一项所述的终端设备，其特征在于，所述第三终端设备还包括传输单元，用于：
    接收网络设备发送的指示信息，所述指示信息用于指示可用于传输所述第二资源调度信息的资源池中的起始资源块的位置。
  45. 根据权利要求41至44中任一项所述的终端设备，其特征在于，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
  46. 根据权利要求45所述的终端设备，其特征在于，
    若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；
    若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被 所述数据信道占用的下一个子频带。
  47. 根据权利要求45或46所述的终端设备，其特征在于，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
  48. 根据权利要求41至47中任一项所述的终端设备，其特征在于，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
  49. 根据权利要求41至48中任一项所述的终端设备，其特征在于，所述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
  50. 根据权利要求41至49中任一项所述的终端设备，其特征在于，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
  51. 一种网络设备，其特征在于，所述网络设备包括：
    确定单元，用于确定可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池；
    传输单元，用于向第一终端设备发送指示信息，所述指示信息用于指示可用于传输第一资源调度信息的资源池，以及可用于传输第二资源调度信息的资源池，以便于所述第一终端设备在可用于传输第一资源调度信息的资源池中，确定用于发送所述第一资源调度信息的第一控制信道资源，并在可用于传输第二资源调度信息的资源池中，确定用于发送所述第二资源调度信息的第二控制信道资源，其中，所述第一控制信道资源的时域长度大于所述第二控制信道资源的时域长度；
    其中，所述第一资源调度信息用于第二终端设备确定所述第一终端设备用于传输数据信道的数据信道资源，所述第二资源调度信息用于第三终端设备确定所述数据信道资源，所述第二终端设备能够基于所述第一控制信道资源的时域长度检测资源调度信息，所述第三终端设备能够基于所述第一控制信道资源的时域长度和/或所述第二控制信道资源的时域长度检测资源调度信息。
  52. 根据权利要求51所述的网络设备，其特征在于，
    所述第二控制信道资源在频域上位于所述第一控制信道资源和所述数据信道资源之间；或者
    所述数据信道在频域上位于所述第一控制信道资源和所述第二控制信道资源之间；或者
    所述第一控制信道资源在频域上位于所述第二控制信道资源与所述数据信道资源之间。
  53. 根据权利要求52所述的网络设备，其特征在于，所述数据信道资源与所述第一控制信道资源在频域上相邻或者不相邻，所述数据信道资源与所述第二控制信道资源在频域上相邻或者不相邻，所述第一控制信道资源与所述第二控制信道资源在频域上相邻或者不相邻。
  54. 根据权利要求51至53中任一项所述的网络设备，其特征在于，所述指示信息包括可用于传输所述第二资源调度信息的资源池中的起始资源块的信息。
  55. 根据权利要求51至54中任一项所述的网络设备，其特征在于，可用于传输所述第二资源调度信息的资源池，包括多个子频带中每个子频带的末尾的预设大小的频域资源。
  56. 根据权利要求55所述的网络设备，其特征在于，
    若所述数据信道资源所在的第一子频带的末尾的所述预设大小的频域资源，未被所述数据信道占用，则所述第二控制信道资源占用位于所述第一子频带末尾的所述预设大小的频域资源；
    若所述第一子频带的末尾的所述预设大小的频域资源，被所述数据信道至少部分占用，则所述第二控制信道资源占用位于第二子频带末尾的所述预设大小的频域资源，其中，所述第二子频带为与所述第一子频带相邻且未被所述数据信道占用的下一个子频带。
  57. 根据权利要求55或56所述的网络设备，其特征在于，可用于传输所述第一资源调度信息的资源池，包括所述每个子频带的起始的预设大小的频域资源，其中，所述第一控制信道资源在频域上与所述数据信道资源相邻。
  58. 根据权利要求51至57中任一项所述的网络设备，其特征在于，可用于传输第二资源调度信息的资源池为网络设备配置的或者协议约定的，可用于传输第一资源调度信息的资源池为网络设备配置的或者协议约定的。
  59. 根据权利要求51至58中任一项所述的网络设备，其特征在于，所 述第二控制信道资源与所述数据信道资源的时域起始位置对齐，和/或所述第二控制信道资源与所述数据信道资源的时域末尾位置对齐。
  60. 根据权利要求51至59中任一项所述的网络设备，其特征在于，所述第二终端设备支持版本Release-14的通信协议且不支持版本Release-15的通信协议，所述第一终端设备和所述第三终端设备支持版本Release-15的通信协议。
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