WO2018082053A1 - 一种资源配置方法、终端设备及基站 - Google Patents

一种资源配置方法、终端设备及基站 Download PDF

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Publication number
WO2018082053A1
WO2018082053A1 PCT/CN2016/104750 CN2016104750W WO2018082053A1 WO 2018082053 A1 WO2018082053 A1 WO 2018082053A1 CN 2016104750 W CN2016104750 W CN 2016104750W WO 2018082053 A1 WO2018082053 A1 WO 2018082053A1
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Prior art keywords
resource
subframe
reserved
synchronization
information
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PCT/CN2016/104750
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English (en)
French (fr)
Inventor
赵振山
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP16920675.2A priority Critical patent/EP3515138B1/en
Priority to CN201680090163.0A priority patent/CN109891968B/zh
Priority to PCT/CN2016/104750 priority patent/WO2018082053A1/zh
Publication of WO2018082053A1 publication Critical patent/WO2018082053A1/zh
Priority to US16/403,537 priority patent/US10992509B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2656Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a resource configuration method, a terminal device, and a base station.
  • Intelligent Transportation Systems includes vehicle networking technologies such as vehicle communication and road communication.
  • the transmission technology used by ITS includes the fourth generation of Long Term Evolution-Vehicle (LTE-V) transmission technology.
  • LTE-V usually adopts a device-to-device (D2D) communication method.
  • the LTE-V system There are two scenarios for vehicle-to-vehicle communication in the LTE-V system: in coverage (IC) and out of coverage (OOC), as shown in Figure 1.
  • OOC the Global Navigation Satellite System
  • the base station or GNSS is used as the synchronization source of the LTE-V.
  • the terminal device can also serve as a synchronization source.
  • the terminal device if the terminal device does not receive the signal of the GNSS and does not receive the signal of the base station, the terminal device can serve as the synchronization source itself and send the synchronization signal.
  • the synchronization source is used by the vehicle terminal to acquire timing synchronization.
  • the timing synchronization is implemented in the form of transmitting synchronization subframes between the vehicle terminals by configuring the synchronization resources of the LTE-V system.
  • the terminal device V3 can transmit the synchronization information through the set of synchronization resource receiving terminal device V2, and the terminal device V3 can send the synchronization information to the terminal device V4 and/or V5 through another set of synchronization resources.
  • the period of the synchronization signal is fixed. For example, the synchronization period is 160 ms. If two sets of synchronization resources are configured, the time offsets of the two sets of synchronization resources are different, so the two sets of synchronization resources are time-division, outside the cell. The user receives the synchronization signal in one of the synchronization resources and transmits the synchronization signal in another synchronization resource.
  • the synchronization subframe is not used for data transmission. Therefore, the subframe of the resource pool that can be used for LTE-V data transmission is a system subframe after the synchronization subframe is removed, and the resource pool is configured through one.
  • the bitmap is represented by a length of 16, 20 or 100 bits, and each bit in the bitmap indicates whether a subframe in the resource pool is available.
  • the period of a system frame number (SFN) or a direct frame number (DFN) includes 10240 subframes. If the number of subframes remaining after the synchronization subframe is removed, the bitmap length is not the length of the bitmap.
  • the subframe of the V resource pool can be represented by an integer multiple of the bitmap, avoiding a bitmap indicating the indication blur caused by the periodic boundary of the SFN or DFN.
  • 201 represents the synchronization subframe in the SFN or DFN.
  • 202 denotes a subframe after the synchronization subframe is removed from the SFN or DFN, and can also be understood as an LTE-V resource pool.
  • 203 indicates that the bitmap indicates an indication blur caused by a periodic boundary crossing the SFN or DFN.
  • the embodiment of the invention relates to a resource configuration method, a terminal device and a base station.
  • the solution to the prior art does not enable the terminal to determine the location of the reserved subframe and accurately use the LTE-V resource pool for data transmission according to the bitmap.
  • an embodiment of the present invention provides a resource configuration method, where the method includes: acquiring, by a terminal device, configuration information of a first resource, configuration information of at least one set of synchronization resources, time domain period information, bitmap information, and pre- At least one of configuration information of the reserved resource and configuration information of the time division duplex TDD system, wherein the first resource is a set of at least one subframe, and the synchronization resource includes at least one synchronization subframe, the TDD
  • the system includes a downlink subframe and a special subframe, where the reserved resource includes at least one reserved subframe, and the synchronization subframe, the reserved subframe, the downlink subframe, and the special subframe are not used by the terminal device to perform device to Data transmission of device D2D.
  • the terminal device is configured according to the configuration information of the first resource, configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, configuration information of the reserved resource, and the TDD. At least one of the configuration information of the system determines a number of reserved subframes in the first resource, and the reserved subframe is in a time domain location of the first resource.
  • the terminal device according to the configuration information of the first resource, the at least one set of synchronization resource configuration information, the configuration information of the TDD system, the number of reserved subframes, and the reserved subframe in the At least one of the time domain location information of the first resource determines a second resource, wherein the second resource is a set of candidate subframes for performing data transmission of the D2D by the terminal device.
  • the terminal device performs D2D data transmission according to the bitmap information and the second resource.
  • the terminal device may determine the number of reserved subframes and the time domain location of the reserved subframes by using pre-configuration or information sent by the base station, and further accurately perform D2D according to the bitmap using the second resource. Data transfer.
  • the configuration information of the at least one set of synchronization resources includes: synchronization period information and offset information of a start synchronization subframe in each set of synchronization resources; configuration information of the first resource is The number of subframes included in the first resource is information; the bitmap information includes bitmap length information.
  • Determining, by the terminal device, the number of subframes included in the first resource, configuration information of the TDD system, the synchronization period information, and a start synchronization subframe of each set of synchronization resources in the at least one set of synchronization resources At least one of the offset information determines a number of synchronization subframes included in each set of synchronization resources in the first resource, a time domain location of the synchronization subframe in the first resource, and the next At least one of a number of row subframes, a number of the special subframes, a time domain position of the downlink subframe in the first resource, and a time domain location of the special subframe in the first resource .
  • the terminal device determines the number of the reserved subframes according to the configuration information of the reserved subframe, or the terminal device according to the number of synchronization subframes in the first resource. And determining, by the at least one of the information about the number of the downlink subframes, the information about the number of the special subframes, the number of subframes included in the first resource, and the length information of the bitmap. The number of frames.
  • the number of reserved subframes may be information that is pre-configured or transmitted by the base station.
  • the number of reserved subframes is such that the number of candidate subframes of the resource pool can be divided by the length of the bitmap, and the minimum reserved subframe number or the number of reserved subframes can be calculated.
  • the terminal device is configured according to the number of subframes included in the first resource, the number of synchronization subframes included in each set of synchronization resources in the first resource, and the reserved subframe.
  • the subframe is at a time domain location of the first resource.
  • the configuration information of the reserved resource includes offset information of the reserved subframe.
  • the configuration information of the reserved resource includes offset information of the reserved subframe.
  • the configuration information of the reserved resource includes offset information of the reserved subframe.
  • the terminal device includes, according to the set of synchronization resources, Dividing the number of synchronization subframes by the number of reserved subframes to obtain a third divisor C 3 , wherein the C 3 is an integer greater than zero; the terminal device determines to include each of the C 3 synchronization periods a reservation subframe; the terminal device determines, according to the offset information of the reserved subframe, a time domain location of the reserved subframe in the first resource; wherein each synchronization period includes A synchronization subframe of each set of synchronization resources, the time domain location of the reserved subframe does not coincide with the time domain location of the synchronization subframe.
  • the configuration information of the reserved resource includes offset information of the reserved subframe.
  • the terminal device divides the number of the subframes included in the first resource by the number of the reserved subframes, and divides the time domain period to obtain a fourth divisor C 4 , where the C 4 is greater than zero.
  • the terminal device determines a subframe offset of two adjacent reserved subframes according to the C 4 and the time domain period; and the terminal device is configured according to the subframes of the adjacent two reserved subframes
  • the offset, the offset of the reserved subframe, and the number of reserved subframes determine a time domain location of the reserved subframe at the first resource.
  • the configuration information of the reserved resource includes offset information of the reserved subframe.
  • the terminal device obtains a fifth divisor C 5 according to the number of subframes included in the first resource divided by the number of the reserved subframes, where the C 5 is an integer greater than zero;
  • the C 5 determines a subframe offset of two adjacent reserved subframes; the terminal device according to the subframe offset of the adjacent two reserved subframes, the offset of the reserved subframe, and the The number of reserved subframes determines the time domain location of the reserved subframe at the first resource.
  • the terminal device determines The reserved subframe is in a time domain position of adjacent N subframes of the first synchronization subframe, and the N is an integer greater than or equal to 1.
  • the terminal device Determining, in the time domain position of the neighboring M subframes of the first downlink subframe, the M is an integer greater than or equal to 1.
  • the terminal device determines The reserved subframe is in a time domain position of adjacent S subframes of the first special subframe, and the S is an integer greater than or equal to 1.
  • the configuration information of the reserved subframe includes the offset information of the reserved subframe in the synchronization period, or the offset information of the starting subframe relative to the first resource when the reserved subframe is in the time domain periodic interval.
  • the reserved subframes are equally divided into offset information of the first subframe relative to the first subframe of the first resource.
  • the offset information of the reserved subframe may further include offset information when the reserved subframe and the synchronization subframe are coincident, and information such as offset information when the reserved subframe is overlapped with the downlink subframe or the special subframe.
  • the terminal device is configured according to the number of subframes included in the first resource, the number of synchronization subframes included in each synchronization resource in the first resource, and the synchronization subframe.
  • the terminal device determines the time domain location information corresponding to the subframes of zero number when determining the second resource.
  • the configuration information of the first resource, the configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, configuration information of the reserved resource, and At least one of the configuration information of the TDD system is pre-configured information or information received from a base station.
  • At least one of the configuration information of the reserved resource and the configuration information of the time division duplex TDD system wherein, the configuration information of the first resource, the configuration information of the at least one set of synchronization resources, and the time domain period At least one of the information, the bitmap information, the configuration information of the reserved resource, and the configuration information of the TDD system is used by the terminal device according to the configuration information of the first resource, the at least one Determining at least one of the configuration information of the synchronization resource, the time domain period information, the bitmap information, the configuration information of the reserved resource, and the configuration information of the TDD system a number of reserved subframes, and a time domain location of the reserved resource in the first resource; wherein, configuration information of the first resource, the at least one set of synchronization resources At least one of the configuration information, the configuration information of the TDD system, the number of the reserved subframes, and the time domain location information of the reserved subframe in the first resource is used by the terminal device And according to the configuration information of the first resource, the at least
  • the first resource is a set of at least one subframe
  • the synchronization resource includes at least one synchronization subframe
  • the TDD system includes a downlink subframe and a special subframe
  • the reserved resource includes at least one reservation subframe.
  • a frame, the synchronization subframe, the reserved subframe, the downlink subframe, and the special subframe are not used by the terminal device to perform data transmission from the device to the device D2D
  • the second resource is used by the terminal device to perform the D2D A collection of candidate subframes for data transmission.
  • the bitmap information includes bitmap length information. If the base station sends the configuration information of the reserved resource to the terminal device, and the configuration information of the reserved resource includes the number of the reserved subframes, the number of the reserved subframes is The number of candidate subframes is divisible by the length of the bitmap.
  • an embodiment of the present invention provides a terminal device, where the terminal device includes: an acquiring unit, configured to acquire configuration information of a first resource, configuration information of at least one set of synchronization resources, time domain period information, and a bitmap. At least one of the information, the configuration information of the reserved resource, and the configuration information of the time division duplex TDD system, wherein the first resource is a set of at least one subframe, and the synchronization resource includes at least one synchronization subframe,
  • the TDD system includes a downlink subframe and a special subframe, where the reserved resource includes at least one reserved subframe, and the synchronization subframe, the reserved subframe, the downlink subframe, and the special subframe are not used by the terminal device.
  • a determining unit configured to use, according to configuration information of the first resource, configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, configuration information of the reserved resource, and the At least one of the configuration information of the TDD system determines a number of reserved subframes in the first resource, and the reserved subframe is in a time domain location of the first resource.
  • the configuration information of the at least one set of synchronization resources includes: synchronization period information and offset information of a start synchronization subframe in each set of synchronization resources; configuration information of the first resource is The number of subframes included in the first resource is information; the bitmap information includes bitmap length information.
  • the determining unit is specifically configured to: according to the number of subframes included in the first resource, the configuration information of the TDD system, the synchronization period information, and the start of each set of synchronization resources in the at least one set of synchronization resources At least one of the offset information of the synchronization subframe determines a number of synchronization subframes included in each set of synchronization resources in the first resource, a time domain location of the synchronization subframe in the first resource, Determining, at least one of a number of downlink subframes, a number of the special subframes, a time domain location of the downlink subframe in the first resource, and a time domain location of the special subframe in the first resourcekind.
  • the determining unit is configured to: according to the number of subframes included in the first resource, the number of synchronization subframes included in each set of synchronization resources in the first resource, The number information of the reserved subframe, the time domain period information, the time domain location information of the synchronization subframe in the first resource, and the configuration information of the reserved subframe and the number of the downlink subframe And determining, by the information of the number of the special subframes, the time domain location information of the downlink resource in the first resource, and the time domain location information of the special subframe in the time domain location information of the first resource.
  • the reserved subframe is at a time domain location of the first resource.
  • the configuration information of the reserved resource includes the offset information of the reserved subframe
  • the determining unit is specifically configured to: when the number of the synchronous subframe is not zero, When the number of synchronization subframes included in each set of synchronization resources is less than or equal to the number of the reserved subframes, the number of the reserved subframes is divided by the number of synchronization subframes included in each set of synchronization resources.
  • each synchronization cycle C 1 includes the one reserved sub-frame, and the first Y within each synchronization cycle further comprises a sub-frame of the reservation; the reserved subframe offset is determined according to the reserved a subframe in a time domain location of the first resource; wherein each synchronization period includes one synchronization subframe of each set of synchronization resources, a time domain location of the reserved subframe and a time domain of the synchronization subframe Positions do not coincide, if more than one reserved subframe is included in one synchronization period It said more than one sub-frame reservation time domain positions not coinciding.
  • the configuration information of the reserved resource includes the offset information of the reserved subframe
  • the determining unit is specifically configured to: when the number of the synchronous subframe is not zero, When the number of synchronization subframes included in each set of synchronization resources is less than or equal to the number of the reserved subframes, the number of the reserved subframes is divided by the number of synchronization subframes included in each set of synchronization resources.
  • the C 1 and the Y are obtained by dividing the number of synchronization subframes included in each set of synchronization resources by the Y to obtain a second divisor C 2 , wherein the C 2 is an integer greater than zero; determining each C 1 comprises a synchronization period of said reserved subframe, and each further comprising a reservation of the sub-frame of said every synchronous period C 2; determining the offset based on the reservation information of the sub-frame Reserving a subframe in a time domain position of the first resource; wherein each synchronization period includes one synchronization subframe of each set of synchronization resources, and a time domain location of the reserved subframe and the synchronization subframe Time domain locations do not coincide, if more than one reserved subframe is included in one synchronization period It said more than one sub-frame reservation time domain positions not coinciding.
  • the configuration information of the reserved resource includes the offset information of the reserved subframe
  • the determining unit is specifically configured to: when the number of the synchronous subframe is not zero, When the number of synchronization subframes included in each set of synchronization resources is greater than the number of the reserved subframes, the number of synchronization subframes included in each set of synchronization resources is divided by the number of the reserved subframes to obtain a third.
  • Divisor C 3 wherein the C 3 is an integer greater than zero; determining to include one of the reserved subframes per C 3 of the synchronization periods; determining the according to the offset information of the reserved subframes Reserving a subframe in a time domain position of the first resource; wherein each synchronization period includes one synchronization subframe of each set of synchronization resources, and a time domain location of the reserved subframe and the synchronization subframe The time domain locations do not coincide.
  • the configuration information of the reserved resource includes the offset information of the reserved subframe
  • the determining unit is specifically configured to divide, according to the number of subframes included in the first resource, by the Retaining the number of subframes, and dividing by the time domain period to obtain a fourth divisor C 4 , wherein the C 4 is an integer greater than zero; determining two adjacent two according to the C 4 and the time domain period Preserving the subframe offset of the subframe; determining the reservation according to the subframe offset of the adjacent two reserved subframes, the offset of the reserved subframe, and the number of the reserved subframes The frame is at a time domain location of the first resource.
  • the configuration information of the reserved resource includes the offset information of the reserved subframe
  • the determining unit is specifically configured to divide, according to the number of subframes included in the first resource, by the The number of reserved subframes is obtained by a fifth divisor C 5 , wherein the C 5 is an integer greater than zero; determining a subframe offset of two adjacent reserved subframes according to the C 5 ; The subframe offset of the reserved subframe, the offset of the reserved subframe, and the number of reserved subframes determine the time domain location of the reserved subframe in the first resource.
  • the determining unit is specifically configured to: when the number of the downlink subframes is not zero, and when the time domain location of the reserved subframe and the time domain of the first downlink subframe When the locations are coincident, the terminal device determines a time domain position of the reserved subframes in the adjacent M subframes of the first downlink subframe, where the M is an integer greater than or equal to 1.
  • the determining unit is specifically configured to: when the number of the special subframes is not zero, and when the time domain location of the reserved subframe and the time domain location of the first special subframe When the coincidence is performed, determining a time domain position of the reserved subframe in the adjacent S subframes of the first special subframe, where S is an integer greater than or equal to 1.
  • the determining unit is further configured to: according to the number of subframes included in the first resource, the number of synchronization subframes included in each set of synchronization resources in the first resource, The time domain location information of the first resource, the number of reserved subframes, the time domain location information of the reserved subframe in the first resource, and the downlink subframe At least one of the number information, the number of the special subframes, the time domain location information of the downlink subframe in the first resource, and the time domain location information of the special subframe in the first resource The information determines the second resource.
  • the configuration information of the first resource, the configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, configuration information of the reserved resource, and At least one of the configuration information of the TDD system is pre-configured information or information received from a base station.
  • an embodiment of the present invention provides a base station, where the base station includes: a sending unit, configured to send, to a terminal device, configuration information of a first resource, configuration information of at least one set of synchronization resources, time domain period information, and a bit At least one of the information of the configuration information, the configuration information of the reserved resource, and the configuration information of the time-division duplex TDD system; wherein the configuration information of the first resource, the configuration information of the at least one set of synchronization resources, and the time At least one of the domain period information, the bitmap information, the configuration information of the reserved resource, and the configuration information of the TDD system is used by the terminal device according to the configuration information of the first resource, Determining the first resource by at least one of at least one set of synchronization resource configuration information, the time domain period information, the bitmap information, configuration information of the reserved resource, and configuration information of the TDD system a number of reserved subframes, and a time domain location of the reserved subframe in the first resource; where
  • the first resource is a set of at least one subframe
  • the synchronization resource includes at least one synchronization subframe
  • the TDD system includes a downlink subframe and a special subframe
  • the reserved resource includes One less reserved subframe, the synchronization subframe, the reserved subframe, the downlink subframe, and the special subframe are not used by the terminal device to perform data transmission from the device to the device D2D
  • the second resource is the terminal device A set of candidate subframes for performing data transmission of the D2D.
  • the bitmap information includes bitmap length information; if it sends the configuration information of the reserved resource to the terminal device, and the configuration information of the reserved resource includes the reservation
  • the base station further includes: a determining unit, configured to determine the number of the reserved subframes, so that the number of the candidate subframes is divisible by a length of the bitmap.
  • the embodiment of the present invention provides a resource configuration method, a terminal device, and a base station, which may determine the number of reserved subframes and the time domain location of the reserved subframes by using pre-configuration or information sent by the base station, and further accurately according to the bits.
  • the figure uses the second resource for D2D data transmission.
  • FIG. 1 is a schematic diagram of an LTE-V vehicle networking application scenario
  • FIG. 2 is a schematic diagram of an LTE-V resource pool bitmap indication
  • FIG. 3 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a resource configuration method according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of still another resource configuration according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another terminal device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the network architecture and the service scenario described in the embodiments of the present invention are used to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation of the technical solutions provided by the embodiments of the present invention.
  • the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.
  • the base station involved in the embodiment of the present invention is a device deployed in a radio access network to provide a wireless communication function for a terminal device. It has a management function of wireless resources, communicates with terminal devices, or acts as a central controller to assist direct communication between terminal devices.
  • FIG. 3 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • the technology described in this embodiment of the present invention may be applicable to a Long Term Evolution (LTE) system, or other wireless communication system using various radio access technologies, for example, using code division multiple access, frequency division multiple access, and time division multiple access. , Orthogonal Frequency Division Multiple Access, single carrier frequency division multiple access and other access technology systems.
  • LTE Long Term Evolution
  • Orthogonal Frequency Division Multiple Access single carrier frequency division multiple access and other access technology systems.
  • the subsequent evolution system using the LTE system such as the fifth generation 5G system and the like.
  • the communication method provided by the embodiment of the present invention is applicable to a car network system, or a D2D system, with or without base station participation.
  • the terminal device involved in the embodiments of the present invention may include various in-vehicle devices having wireless communication functions or other processing devices connected to the wireless modem. These include, but are not limited to, vehicles, handheld devices, devices that can communicate with base station devices, or that communicate directly with other terminal devices. For convenience of description, in the embodiment of the present invention, the devices mentioned above are collectively referred to as terminal devices.
  • the configuration information of the first resource, the bitmap information, the configuration information of the reserved subframe, the configuration information of at least one set of synchronization resources, the time domain period information, and the time division double of the first resource transmitted by the terminal device through the pre-configuration or the base station At least one of the Time Division Duplexing (TDD) system configuration information
  • the information determines the number of synchronization subframes, the time domain location of the synchronization subframe, the number of downlink subframes of the TDD system, the number of special subframes of the TDD system, the time domain location of the downlink subframe of the TDD system, and the special subframe of the TDD system. At least one of the time domain locations.
  • the terminal device determines the reserved subframe according to at least one of the number of subframes included in the first resource, the bitmap information, and the number of synchronization subframes, the number of downlink subframes of the TDD system, and the number of special subframes of the TDD system.
  • the number, or the terminal device determines the number of reserved subframes according to the configuration information of the reserved subframe.
  • the terminal device according to the configuration information of the first resource, the bitmap information, the time domain period information, the number of synchronization subframes, the time domain location of the synchronization subframe, the number of downlink subframes of the TDD system, the number of special subframes of the TDD system, TDD At least one of a time domain location of the system downlink subframe, a time domain location of the TDD system special subframe, and a number of reserved subframes in the first resource determines a time domain location of the reserved subframe.
  • the terminal device is configured according to the configuration information of the first resource, the number of synchronization subframes, the time domain location of the synchronization subframe, the number of reserved subframes in the first resource, the time domain location of the reserved subframe, and the downlink of the TDD system.
  • the second resource is determined by at least one of the number of frames, the number of TDD system special subframes, the time domain location of the TDD system downlink subframe, and the time domain location of the TDD system special subframe.
  • the first resource is a set of at least one subframe
  • the synchronization resource includes at least one synchronization subframe
  • the TDD system includes a downlink subframe and a special subframe
  • the reserved resource includes at least one reserved subframe.
  • the synchronization subframe, the reserved subframe, the downlink subframe, and the special subframe are not used by the terminal device to perform data transmission from the device to the device D2D.
  • the second resource is a set of candidate subframes for D2D data transmission by the terminal device. The terminal device performs D2D data transmission according to the bitmap information and the second resource.
  • FIG. 4 is a flowchart of a resource configuration method according to an embodiment of the present invention. As shown in FIG. 4, the embodiment specifically includes the following steps:
  • Step S101 The terminal device acquires configuration information of the first resource and at least one set of synchronization resources. At least one of information, time domain period information, bitmap information, configuration information of reserved resources, and configuration information of the TDD system.
  • the first resource is a set of at least one subframe, for example, the first resource includes 10240 or other number of subframes, the synchronization resource includes at least one synchronization subframe, and the TDD system includes a downlink subframe and
  • the special subframe that is, the subframe included in the TDD system includes a downlink subframe and a special subframe, where the reserved resource includes at least one reserved subframe, the synchronization subframe, the reserved subframe, and the downlink subframe.
  • the special subframe is not used for the terminal device to perform data transmission from the device to the device D2D.
  • the first resource may be an SFN or a DFN.
  • the multiple subframes included in the SFN are time divisions, and the multiple subframes included in the DFN are also time divisions.
  • the synchronization period mentioned below may be in units of subframes, and the number of subframes reflects the size of the period. For example, T subframes are one synchronization period, and T is a natural number.
  • configuration information of the first resource is pre-configured information or information received from a base station.
  • the terminal device may pre-store configuration information of the first resource, configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, and the reserved resource. At least one of the configuration information and the configuration information of the TDD system, or the terminal device may receive, by the base station, configuration information of the first resource, configuration information of the at least one set of synchronization resources, the time domain period information, At least one of bitmap information, configuration information of the reserved resource, and configuration information of the TDD system is described.
  • the terminal device pre-stores the foregoing related configuration information by using a protocol of the terminal device, so that the terminal device pre-stores one or more of the related configuration information.
  • Step S102 The terminal device is configured according to the configuration information of the first resource, configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, configuration information of the reserved resource, and the At least one of the configuration information of the TDD system determines a number of reserved subframes in the first resource, and the reserved subframe is in a time domain location of the first resource.
  • the configuration information of the at least one set of synchronization resources includes: synchronization period information and offset information of a start synchronization subframe in each set of synchronization resources; configuration information of the first resource is the first resource The number of subframes included; the bitmap information includes bitmap length information.
  • the synchronization period refers to the period of the synchronization signal.
  • the sync signal here can be a sync subframe.
  • the synchronization signal may also be in other forms to achieve the effect of timing synchronization between the terminal devices by transmitting or receiving a synchronization signal.
  • the embodiment of the present invention is only described by taking a synchronization subframe as an example, and each synchronization period includes one synchronization subframe of each synchronization resource.
  • each synchronization Two sync subframes will be included in the period.
  • the synchronization period is changed by the protocol of the terminal device or the control of the base station, and is adjusted according to actual needs.
  • the synchronization period is 160 ms as an example for description.
  • the terminal device is configured to: according to the number of subframes included in the first resource, configuration information of the TDD system, the synchronization period information, and a start synchronization subframe of each set of synchronization resources in the at least one set of synchronization resources.
  • At least one of the offset information determines a number of synchronization subframes included in each set of synchronization resources in the first resource, a time domain location of the synchronization subframe in the first resource, and a downlink subframe At least one of a number of frames, a number of the special subframes, a time domain position of the downlink subframe in the first resource, and a time domain location of the special subframe in the first resource.
  • the terminal device when the terminal device receives the configuration information of the at least one set of the synchronization resources, the terminal device determines, according to the synchronization period information therein, the number of synchronization subframes included in each set of the synchronization resources in the first resource. And a synchronization subframe at a time domain location of the first resource.
  • the synchronization subframes are typically evenly distributed in the first resource in a synchronization cycle.
  • the first resource is SFN or DFN
  • the period of one SFN or DFN usually includes 10240 subframes. One subframe corresponds to a time of 1 ms.
  • the synchronization subframe in each set of synchronization resources is evenly distributed according to the offset information of the initial synchronization subframe and the synchronization period in the time domain position corresponding to the first resource.
  • the terminal device determines, according to the configuration information of the TDD system, the number of downlink subframes, the number of special subframes, and the number of special subframes in the first resource, The time domain position of the downlink resource in the first resource and the time domain location of the special resource in the first resource.
  • the special subframe included in the TDD system is a subframe including a Downlink Pilot Time Slot (DwPTS), a Guard Period (GP), and an Uplink Pilot Time Slot (UpPTS). .
  • DwPTS Downlink Pilot Time Slot
  • GP Guard Period
  • UpPTS Uplink Pilot Time Slot
  • the terminal device determines, according to the configuration information of the reserved subframe, the number of the reserved subframes, or the terminal device, according to the number of synchronization subframes in the first resource, the downlink subframe.
  • the number information, the at least one of the number of the special subframes, the number of subframes included in the first resource, and the length information of the bitmap determine the number of the reserved subframes.
  • the number of reserved subframes may be pre-configured or sent by the base station, where the number of reserved subframes sent by the base station needs to be implemented by sending configuration information of reserved resources to the terminal device.
  • the number of reserved subframes is such that the number of candidate subframes of the resource pool can be divided by the length of the bitmap. For example, if the bitmap is a 16-bit character, the number of bits in the bitmap is 16, bit. The length of the graph is 16.
  • the information acquired by the terminal includes the configuration information of the synchronization resource and the configuration information of the TDD system resource, the synchronization subframe, the downlink subframe, and the special subframe need to be removed from the first resource, and then the configured reserved subframe is removed.
  • the number of such that the number of remaining subframes in the first resource can be divisible by the length of the bitmap.
  • the number of reserved subframes is such that the number of candidate subframes of the resource pool can be divided by the length of the bitmap, indicating that the number of reserved subframes may be a sub-resource included by the first resource.
  • the number of reserved subframes calculated according to this case is the minimum reserved subframe number.
  • the number of reserved subframes may be directly configured in the configuration information of the reserved resource.
  • the number of reserved subframes may be the number of the minimum reserved subframes calculated in the foregoing plus an integer multiple of the number of bits. Figure length.
  • the number of reserved subframes is used to regulate the number of LTE-V resource pool candidate subframes, so that the number of candidate subframes can be divisible by the length of the bitmap. It should be understood by those skilled in the art that, in the case that the number of reserved subframes satisfies the above conditions, the reserved subframe provided by the embodiment of the present invention in step S102 and the following first embodiment, second embodiment and third embodiment The same method of determining the time domain location is also applicable.
  • the period Xms of the synchronization subframe within the resource determines the number Q of reserved subframes.
  • the length of the bitmap is G, and the number of subframes included in the first resource is R.
  • the number of subframes included is R, the number of synchronization subframes D, and the bitmap length G determine the minimum number of reserved subframes. The specific calculation is as shown in Equation 1:
  • mod() indicates the remainder operation.
  • the number of reserved subframes is calculated according to the bitmap length, the number of synchronization subframes, and the number of subframes included in the first resource. For details, refer to Table 1.
  • the configuration information of the TDD system is not configured, that is, the downlink resource and the special subframe corresponding to the TDD system are not included in the first resource.
  • the first resource includes the downlink subframe and the special subframe corresponding to the TDD system
  • the corresponding downlink subframe and the special value should also be subtracted from the number of subframes included in the first resource. After the number of sub-frames, divide by the length of the bitmap. The specific calculation method can be found in formula (1).
  • the case of calculating a reserved subframe according to the number of synchronization subframes, the bitmap length, and the number of subframes included in the first resource is shown in Table 1. It can be understood that in Table 1, it is shown The case of the minimum number of reserved subframes. Embodiments of the present invention may also include more reserved subframe numbers. Here, only the minimum reserved subframe number is taken as an example for description.
  • the first resource is an SFN, which contains 10240 subframes, and the synchronization period is 160 ms. In an alternative embodiment, when two sets of synchronization resources are configured, the number of synchronization subframes is 128.
  • the reserved subframe in order to ensure the delay requirement of the LTE-V service, needs to be evenly distributed as much as possible within the subframe included in the entire first resource.
  • the resource configuration method provided by the embodiment of the present invention may be configured by configuring a time domain location of the reserved subframe to be related to a time domain location of the synchronization subframe, or reserving a subframe offset between the subframes. For a fixed time domain period, or a manner of uniformly allocating reserved subframes in a subframe included in the first resource, the terminal device may determine the time domain location of the reserved subframe according to the location related information of the reserved subframe.
  • the terminal device may determine the time domain location of the reserved subframe according to the location related information of the reserved subframe.
  • the second resource is an LTE-V resource pool.
  • the terminal device after the terminal device receives the information of the bitmap, the information about the number of subframes included in the first resource, the number of synchronization subframes included in each synchronization resource in the first resource, and the synchronization subframe are in the a time domain location of the first resource, a number of reserved subframes, a time domain location of the reserved subframe in the first resource, a number of downlink subframes, and a time domain location of the downlink resource in the first resource Determining, in addition to the synchronization subframe, the reservation subframe, and the downlink subframe, in the subframe included in the first resource, the number of the special subframes, and the at least one information of the special subframe in the time domain location of the first resource The time domain position of the candidate subframe other than the frame and the special subframe. Further, the terminal device may correspond the location of the candidate subframe to the bitmap, and use the candidate subframe for data transmission according to the indication of the bitmap.
  • the terminal device determines the second resource, and does not consider the time domain location information corresponding to the subframes with the number zero.
  • the terminal device when the number of the synchronization subframes is not zero, and the number of the downlink subframes and the special subframes is zero, the terminal device is configured according to the subframe included by the first resource. Number letter Information, the number of synchronization subframes included in each set of synchronization resources in the first resource, time domain location information of the synchronization subframe in the first resource, information on the number of reserved subframes, and the The reserved subframe determines the second resource in time domain location information of the first resource.
  • the terminal device synchronizes each set of the first resource according to the number of subframes included in the first resource.
  • the number of synchronization subframes included in the resource, the time domain location information of the synchronization subframe in the first resource, the number of the reserved subframes, and the reserved subframe in the first resource Time domain location information, number information of the downlink subframe, number information of the special subframe, time domain location information of the downlink subframe in the first resource, and the special subframe in the first
  • the time domain location information of the resource determines the second resource.
  • the terminal device When the number of the synchronization subframe, the downlink subframe, and the special subframe is zero, the terminal device according to the number of subframes included in the first resource, the number of the reserved subframe, and the location The reserved subframe determines the second resource in time domain location information of the first resource.
  • the terminal device determines, according to the number of subframes included in the first resource, the reservation subframe.
  • the number information of the frame, the time domain location information of the reserved subframe in the first resource, the number information of the downlink subframe, the number information of the special subframe, and the downlink subframe in the The time domain location information of a resource and the time domain location information of the special subframe in the first resource determine the second resource.
  • Step S104 The terminal device performs D2D data transmission according to the bitmap information and the second resource.
  • the terminal device may correspond to the bitmap of the candidate subframe, and use the candidate subframe to perform data transmission according to the indication of the bitmap, including: repeating the bitmap in a subframe range of the second resource, so that all the The subframes in the two resources have bits in the bitmap to indicate that the value of the bit corresponding to the bitmap indicates whether the corresponding subframe in the candidate subframe is available for the terminal device to perform D2D data transmission.
  • Example 3 For the resource configuration method shown in FIG. 4, refer to the following Embodiment 1, Embodiment 2, and implementation. Three specific embodiments are provided in Example 3.
  • the synchronization resource of the LTE-V system is used for synchronization between the terminal devices, and the location of the synchronization subframe is pre-configured or transmitted by the base station, so the location of the reserved subframe may be determined by the location of the synchronization subframe.
  • the terminal device acquires configuration information of the synchronization resource.
  • the terminal device determines the number of synchronization subframes and the time domain location according to the configuration information of the synchronization resources.
  • the terminal device obtains the number of reserved subframes, where the number of reserved subframes may be sent by the base station, pre-configured, or according to the number of synchronization subframes, the number of subframes included in the first resource, and the resource pool.
  • the length of the bitmap is calculated.
  • the terminal device determines the location of the reserved subframe according to the location of the synchronization subframe, as follows:
  • the terminal device when the number of the synchronization subframes is not zero, and when the number of synchronization subframes included in each set of synchronization resources is less than or equal to the number of the reserved subframes, the terminal device is configured according to The number of the reserved subframes is divided by the number of synchronization subframes included in each set of synchronization resources to obtain a first divisor C 1 and a remainder Y; the terminal device according to the synchronization subframe included in each set of synchronization resources Dividing the number by the Y yields a second divisor C 2 , wherein the C 1 is an integer greater than zero, the Y is an integer greater than zero, and the C 2 is an integer greater than zero; the terminal device determines each the C 1 sync period includes a sub-frame of the reservation, and the C 2 of said every synchronous period within a range from the first resources, a first synchronization period each further comprises a reservation of the sub-frame The terminal device determines, according to the offset information of the reserved subframe,
  • the time domain location of the reserved subframe does not coincide with the time domain location of the synchronization subframe. If more than one reserved subframe is included in one synchronization period, the time domain location of the more reserved subframe. Do not coincide.
  • one SFN includes P synchronization periods and Q reserved subframes.
  • Q Q ⁇ P
  • Y QC 1 *P; Indicates rounding down.
  • each synchronization cycle contains one or more reserved subframe C 1, further comprising a reserved sub-frame each in every period and C 2 sync SFN cycle starting from the first synchronization period. That is, the remaining Y reserved subframes are evenly distributed in P synchronization periods.
  • the configuration information of the reserved subframe includes offset information of the reserved subframe.
  • the terminal device determines the number of reserved subframes included in each synchronization period according to the number of reserved subframes and the number of synchronization subframes included in each synchronization resource, and then determines the preset according to the offset information of the reserved subframe.
  • the offset information of the reserved subframe indicates that the subframe of the first reserved subframe in the synchronization period is shorter than the first subframe of the synchronization period or the subframe of the first synchronization subframe in the synchronization period is X subframes, where X is an integer greater than or equal to zero, and X is less than the synchronization period.
  • the synchronization period may also include more than one reserved subframe, and the offset information of the reserved subframe indicates the starting subframe or synchronization in the relative synchronization period of the second reserved subframe in the corresponding synchronization period.
  • the subframe offset of the first synchronization subframe in the period is Y subframes, where Y is an integer greater than or equal to zero, and Y is less than the synchronization period. And so on, not exhaustive here.
  • the time domain positions of the multiple reserved subframes do not coincide, and the time domain location of the reserved subframe is obtained according to the offset of the reserved subframe.
  • the reserved subframe is offset one subframe forward or backward, and may also be offset from other fixed length subframes.
  • Each synchronization period includes one synchronization subframe of each synchronization resource, and the time domain location of the reserved subframe does not coincide with the time domain location of the synchronization subframe, if one synchronization period includes more than one
  • the subframes are reserved, and the time domain positions of the more than one reserved subframes do not coincide.
  • one SFN contains P synchronization periods and Q reserved subframes.
  • Q Q ⁇ P
  • Y QC 1 *P
  • the remaining Y reserved subframes are located in the first Y synchronization periods.
  • the specific time domain location of the reserved subframe is determined according to the offset of the reserved subframe.
  • the terminal device when the number of synchronization subframes is not zero, and when the number of synchronization subframes included in each set of synchronization resources is greater than the number of the reserved subframes, the terminal device according to each of the The synchronization resource includes a number of synchronization subframes divided by the number of the reserved subframes to obtain a third divisor C 3 , wherein the C 3 is an integer greater than zero; the terminal device determines from the first resource Included in the C 3 consecutive synchronization periods starting from the first synchronization period in the range, the reservation subframe is determined; the terminal device determines the reserved subframe according to the offset information of the reserved subframe a time domain location of the first resource; wherein each synchronization period includes one synchronization subframe of each set of synchronization resources, and a time domain location of the reserved subframe and a time domain location of the synchronization subframe are not coincide.
  • one SFN contains P synchronization periods and Q reserved subframes.
  • Q Q ⁇ P, That is, every C 3 synchronization periods starting from the first synchronization period includes one reserved subframe.
  • 501 indicates a synchronization subframe
  • 502 indicates a synchronization period.
  • a sync subframe is included in each sync cycle.
  • 503 indicates a reserved subframe, and includes one reserved subframe every four synchronization periods.
  • 504 indicates that the reserved subframe is 481 with respect to the offset subframe of the starting synchronization subframe every four synchronization periods.
  • the offset subframe of the reserved subframe relative to the initial synchronization subframe in every 4 synchronization periods may be other conditions, and is determined according to the offset information of the reserved subframe.
  • the configuration information of the reserved resource includes a pre- The offset information of the reserved subframe.
  • the offset (or subframe offset) of the time domain position of the reserved subframe within each synchronization period relative to the time domain location of the synchronization subframe may be fixed or pre-configured, or transmitted by the base station.
  • the reserved subframe may be distributed into the synchronization period, and the position of the reserved subframe is relative to the location of the synchronization subframe. It is fixed or configurable, so that the terminal device can determine the location of the reserved subframe by the location information of the synchronization subframe.
  • a fixed time domain period may be set. After the terminal device obtains the fixed time domain period information, the location of the reserved subframe may be determined according to the time domain period and the number of subframes included in the first resource.
  • the service of the LTE-V has a periodic characteristic, so the location of the reserved subframe and the period of the LTE-V service can be bound, and the time domain period is set as the service period. The terminal device can determine the location of the reserved subframe by the period of the service.
  • the terminal device acquires a service cycle configuration of the system.
  • the service period configuration of the system can be set to a fixed time domain period.
  • the service period configuration can be pre-configured or sent by the base station.
  • the terminal device acquires the number of reserved subframes.
  • the terminal device determines the location of the reserved subframe according to the service period (fixed time domain period), as follows:
  • the terminal device divides the number of the subframes included in the first resource by the number of the reserved subframes, and divides the time domain period to obtain a fourth divisor C 4 , where the C 4 An integer that is greater than zero; the terminal device determines a subframe offset of the two adjacent reserved subframes according to the C 4 and the time domain period; and the subframe device deviates according to the subframe of the adjacent two reserved subframes And the offset of the reserved subframe and the number of the reserved subframes determine a time domain location of the reserved subframe in the first resource.
  • the time domain period is set to 100 ms.
  • the number of reserved subframes Q in the system is 40.
  • the fourth divisor C 4 2.
  • every 200 ms from the first time domain period may include one reserved subframe, and the offset position of the reserved subframe in each time domain period may be fixed, or pre-configured, or sent by the base station. . Further, determining a specific time domain position of the reserved subframe according to the offset of the reserved subframe, where the offset of the reserved subframe is the initial reserved subframe relative to the starting subframe of the first resource Offset.
  • the reserved subframe is shifted forward or backward by at least one subframe.
  • the terminal device determines the reservation.
  • the subframe is in a time domain position of adjacent N subframes of the first synchronization subframe, and the N is an integer greater than or equal to 1.
  • the reserved subframe may be distributed in the first resource according to the time domain period, and the reserved subframe is in each time domain period.
  • the location is fixed or configurable so that the terminal device can determine the location of the reserved subframe by the time domain period information.
  • the reserved subframes may be evenly distributed in the first resource, so that the terminal device may determine the location of the reserved subframe by the number of reserved subframes and the number of subframes included in the first resource.
  • the terminal device acquires the number of reserved subframes.
  • the terminal device determines the location of the reserved subframe according to the uniform distribution of the reserved subframes in the first resource period, as follows:
  • the terminal device obtains a fifth divisor C 5 according to the number of subframes included in the first resource divided by the number of the reserved subframes, where the C 5 is an integer greater than zero; two adjacent device determines the reserved subframe in accordance with the deviation of C 5 subframes; the terminal device based on the frame delay of two adjacent sub-subframes reserved, the reserved subframe offset And determining, by the number of the reserved subframes, a time domain location of the reserved subframe in the first resource.
  • the reserved subframe position is: That is, one reserved subframe is included in every 5 subframes. Further, determining a specific time domain position of the reserved subframe according to the offset of the reserved subframe, where the offset of the reserved subframe is the initial reserved subframe relative to the starting subframe of the first resource Offset. If the location of the reserved subframe coincides with the location of the synchronization subframe, the reserved subframe is shifted forward or backward by at least one subframe.
  • the terminal device determines the reservation.
  • the subframe is in a time domain position of adjacent N subframes of the first synchronization subframe, and the N is an integer greater than or equal to 1.
  • the reserved subframes are evenly distributed in the system radio frame period, that is, each of the first subframes in the first resource range begins.
  • Each subframe contains a reserved subframe.
  • the configuration information of the reserved subframe includes the offset information of the reserved subframe in the synchronization period, or the starting subframe of the reserved resource when the reserved subframe is in the time domain periodic interval.
  • the offset information of the frame, or the reserved subframe is equally divided into the offset information of the first subframe relative to the first subframe of the first resource.
  • the offset information of the reserved subframe may further include offset information when the reserved subframe and the synchronization subframe are coincident, and information such as offset information when the reserved subframe is overlapped with the downlink subframe or the special subframe.
  • the reserved subframes may be evenly distributed in the first resource, so that the terminal device can reserve the number of subframes by using the information. Determine the location of the reserved subframe.
  • the embodiment of the present invention provides a terminal device, which is used to implement the resource configuration method provided in the foregoing embodiment, and the first embodiment, the second embodiment, and the third embodiment.
  • the terminal device includes An acquisition unit 710, a determination unit 720, and a data transmission unit 730.
  • the acquiring unit 710 of the terminal device is configured to acquire configuration information of the first resource, configuration information of at least one set of synchronization resources, time domain period information, bitmap information, configuration information of reserved resources, and configuration of the time division duplex TDD system. At least one of the information, wherein the first resource is a set of at least one subframe, the synchronization resource includes at least one synchronization subframe, and the TDD system includes a downlink subframe and a special subframe, where the The reserved resource includes at least one reserved subframe, and the synchronization subframe, the reserved subframe, the downlink subframe, and the special subframe are not used for data transmission of the D2D by the terminal device.
  • the determining unit 720 is configured to use, according to configuration information of the first resource, configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, configuration information of the reserved resource, and the At least one of the configuration information of the TDD system determines a number of reserved subframes in the first resource, and the reserved subframe is in a time domain location of the first resource.
  • the determining unit 720 is further configured to: according to configuration information of the first resource, the at least one set of synchronization resource configuration information, configuration information of the TDD system, information about the number of reserved subframes, and the reservation And determining, by the at least one of the time domain location information of the first resource, the second resource, where the second resource is a set of candidate subframes for performing data transmission of the D2D by the terminal device.
  • the data transmission unit 730 is configured to perform D2D data transmission according to the bitmap information and the second resource.
  • the data transmission unit 730 is a sending unit or a receiving unit, where the sending unit is configured to perform D2D data transmission according to the bitmap information and the second resource, or the receiving unit And configured to perform D2D data reception according to the bitmap information and the second resource.
  • the configuration information of the at least one set of synchronization resources includes: synchronization period information and each set of synchronization Offset information of the start synchronization subframe in the resource; the configuration information of the first resource is the number of subframes included in the first resource; and the bitmap information includes bitmap length information.
  • the determining unit 720 is specifically configured to: according to the number of subframes included in the first resource, configuration information of the TDD system, the synchronization period information, and each set of synchronization resources in the at least one set of synchronization resources.
  • At least one of the offset information of the start synchronization subframe determines a number of synchronization subframes included in each set of synchronization resources in the first resource, and a time domain location of the synchronization subframe in the first resource.
  • the number of the downlink subframes, the number of the special subframes, the time domain location of the downlink subframe in the first resource, and the time domain location of the special subframe in the first resource At least one.
  • the determining unit 720 is specifically configured to determine, according to the configuration information of the reserved subframe, the number of the reserved subframes, or the determining unit 720 is specifically configured to use, according to the number of synchronization subframes in the first resource. And determining, by the at least one of the information about the number of the downlink subframes, the information about the number of the special subframes, the number of subframes included in the first resource, and the length information of the bitmap. The number of frames.
  • the determining unit 720 is specifically configured to: according to the number of subframes included in the first resource, the number of synchronization subframes included in each set of synchronization resources in the first resource, and the number of the reserved subframes.
  • the information, the time domain period information, the time domain location information of the synchronization subframe in the first resource, the configuration information of the reserved subframe, the number information of the downlink subframe, and the special subframe Determining the reserved subframe by the number information, the time domain location information of the downlink resource in the first resource, and the time domain location information of the special subframe in the first resource. The time domain location of the first resource.
  • the configuration information of the reserved resource includes offset information of the reserved subframe.
  • the determining unit 720 is specifically configured to: when the number of the synchronization subframes is not zero, and when the number of synchronization subframes included in each set of synchronization resources is less than or equal to the number of the reserved subframes, Dividing the number of reserved subframes by the number of synchronization subframes included in each set of synchronization resources to obtain a first divisor C 1 and a remainder Y, wherein the C 1 is an integer greater than zero, and the Y is integer greater than zero, and Y is less than the number of simultaneous resources comprise said synchronized subframes of each; determining within each synchronization cycle C 1 includes a reservation of said sub-frame, and the first Y within each synchronization cycle further Include one of the reserved subframes; determining, according to the offset of the reserved subframe, a time domain location of the reserved subframe in the first resource.
  • the determining unit 720 is specifically configured to: when the number of the synchronization subframes is not zero, and when the number of synchronization subframes included in each set of synchronization resources is less than or equal to the number of the reserved subframes, Dividing the number of the reserved subframes by the number of synchronization subframes included in each set of synchronization resources to obtain the C 1 and the Y; dividing the number of synchronization subframes included in each set of synchronization resources by The Y obtains a second divisor C 2 , wherein the C 2 is an integer greater than zero; determining that each of the synchronization periods includes C 1 of the reserved subframes, and each of the C 2 synchronization periods is further Each of the reserved subframes is included; and the time domain location of the reserved subframe in the first resource is determined according to the offset information of the reserved subframe.
  • Each synchronization period includes one synchronization subframe of each synchronization resource, and the time domain location of the reserved subframe does not coincide with the time domain location of the synchronization subframe, if one synchronization period includes more than one
  • the subframes are reserved, and the time domain positions of the more than one reserved subframes do not coincide.
  • the determining unit 720 is specifically configured to: when the number of the synchronization subframes is not zero, and when the number of synchronization subframes included in each set of synchronization resources is greater than the number of the reserved subframes, Dividing the number of synchronization subframes included in each set of synchronization resources by the number of the reserved subframes to obtain a third divisor C 3 , wherein the C 3 is an integer greater than zero; determining the synchronization period per C 3 Include one of the reserved subframes; and determine, according to the offset information of the reserved subframe, a time domain location of the reserved subframe in the first resource.
  • Each synchronization period includes one synchronization subframe of each set of synchronization resources, and the time domain location of the reserved subframe does not coincide with the time domain location of the synchronization subframe.
  • the determining unit 720 is specifically configured to: according to the number of subframes included in the first resource divided by the number of reserved subframes, and divide by the time domain period to obtain a fourth divisor C 4 , where C 4 is an integer greater than zero; determining a subframe offset of two adjacent reserved subframes according to the C 4 and the time domain period; according to a subframe offset of the adjacent two reserved subframes, The offset of the reserved subframe and the number of the reserved subframes determine a time domain location of the reserved subframe in the first resource.
  • the determining unit 720 is specifically configured to obtain a fifth divisor C 5 according to the number of subframes included in the first resource divided by the number of the reserved subframes, where the C 5 is an integer greater than zero; Determining a subframe offset of two adjacent reserved subframes according to the C 5 ; according to a subframe offset of the adjacent two reserved subframes, an offset of the reserved subframe, and the reservation The number of subframes determines the time domain location of the reserved subframe at the first resource.
  • the determining unit 720 is specifically configured to: when the number of the synchronization subframes is not zero, and when the time domain location of the reserved subframe coincides with the time domain location of the first synchronization subframe, determine the The reserved subframe is in a time domain position of adjacent N subframes of the first synchronization subframe, and the N is an integer greater than or equal to 1.
  • the determining unit 720 is specifically configured to: when the number of the downlink subframes is not zero, and when the time domain location of the reserved subframe coincides with the time domain location of the first downlink subframe, determine The reserved subframe is in a time domain position of adjacent M subframes of the first downlink subframe, and the M is an integer greater than or equal to 1.
  • the determining unit 720 is specifically configured to: when the number of the special subframes is not zero, and when the time domain location of the reserved subframe coincides with the time domain location of the first special subframe, determine the The reserved subframe is in a time domain position of adjacent S subframes of the first special subframe, and the S is an integer greater than or equal to 1.
  • the determining unit 720 is further configured to: according to the number of subframes included in the first resource, the number of synchronization subframes included in each set of synchronization resources in the first resource, and the synchronization subframe in the The time domain location information of the first resource, the number of the reserved subframes, the time domain location information of the reserved subframe in the first resource, the number information of the downlink subframe, and the special Determining the second information by the number information of the subframe, the time domain location information of the downlink resource in the first resource, and the time domain location information of the special subframe in the first resource. Resources.
  • the terminal device provided by the embodiment of the present invention may be implemented as follows to implement the foregoing communication method in the embodiment of the present invention.
  • the terminal device includes: a receiver 810, and a processor 820. . Memory 830 and transmitter 840.
  • the acquisition unit 710 in the aforementioned embodiment of FIG. 7 may be replaced by a receiver 810 or a memory 830.
  • configuration information of the first resource, configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, configuration information of the reserved resource, and the TDD system At least one of the configuration information is pre-configured information in the memory 830 or information received by the receiver 810 from the base station.
  • the determining unit 720 can be replaced by the processor 820.
  • the data transmission unit 830 can be replaced by a receiver 810 or a transmitter 840.
  • the embodiment of the present invention further provides a base station, which is used to implement the resource configuration method provided in the foregoing embodiment, and the first embodiment, the second embodiment, and the third embodiment.
  • the base station includes: The transmitting unit 910 and the determining unit 920.
  • the sending unit 910 of the base station is configured to send, to the terminal device, configuration information of the first resource, configuration information of at least one set of synchronization resources, time domain period information, bitmap information, configuration information of reserved resources, and time division duplex TDD system.
  • At least one of the configuration information; the configuration information of the first resource, the configuration information of the at least one set of synchronization resources, the time domain period information, the bitmap information, and the reserved resource At least one of the configuration information and the configuration information of the TDD system is used by the terminal device according to the configuration information of the first resource, the at least one set Determining the pre-determination in the first resource by at least one of configuration information of the synchronization resource, the time domain period information, the bitmap information, configuration information of the reserved resource, and configuration information of the TDD system a number of reserved subframes, and a time domain location of the reserved subframe in the first resource; wherein, configuration information of the first resource, the at least one set of synchronization resource configuration information, and the TDD system At
  • the first resource is a set of at least one subframe
  • the synchronization resource includes at least one synchronization subframe
  • the TDD system includes a downlink subframe and a special subframe
  • the reserved resource includes at least one reservation subframe.
  • a frame, the synchronization subframe, the reserved subframe, the downlink subframe, and the special subframe are not used by the terminal device to perform data transmission from the device to the device D2D
  • the second resource is used by the terminal device to perform the D2D A collection of candidate subframes for data transmission.
  • bitmap information includes bitmap length information.
  • the determining unit 920 of the base station uses The number of reserved subframes is determined such that the number of candidate subframes can be divisible by the length of the bitmap.
  • the implementation manner of the base station provided by the embodiment of the present invention is as follows, to implement the resource configuration method in the foregoing embodiment of the present invention, and the specific embodiment 1, the second embodiment, and the third embodiment, as shown in FIG. 10,
  • the base station includes a transmitter 1010 and a processor 1020.
  • the transmitting unit 910 in the aforementioned embodiment of FIG. 9 may be replaced by a transmitter 1010.
  • the determining unit 920 can be replaced by the processor 1020.
  • the processing involved in each unit in FIG. 10 refer to the specific embodiment shown in FIG. 9 above, and no further details are provided herein.
  • the resource configuration method, the terminal device, and the base station provided by the embodiments of the present invention enable the terminal device to be
  • the number of reserved subframes is determined according to pre-configured information or information sent by the base station. Further, the location of the reserved subframe is determined according to the location of the synchronization subframe, or the location of the reserved subframe is determined according to the service period or the fixed time domain period, or the location of the reserved subframe is determined according to the uniform distribution principle. Further, the terminal device can perform D2D data transmission using the LTE-V resource pool accurately according to the bitmap.
  • the resource configuration method, the terminal device, and the base station provided by the embodiments of the present invention are applicable not only to the LTE-V but also to the D2D data transmission field in the LTE-V, and can also be applied to other occasions.
  • the terminal device determines the number of reserved resources and the time domain location according to the pre-configuration or the rules sent by the base station, so that the number of subframes and the bitmap length included in the resource pool can be divisible by the length of the bitmap.
  • the implementation manner that the bitmap can repeat the bitmap in the range of the sub-frames included in the resource pool, such that the sub-frames in all the resource pools have the bits in the bitmap, should belong to the embodiment of the present invention. protected range.

Abstract

本发明实施例涉及一种资源配置方法、终端设备及基站,该方法包括:终端设备获取第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息,并根据该至少一种信息确定第一资源中的预留子帧的数目,以及预留子帧在第一资源的时域位置以及确定第二资源,第二资源为终端设备进行D2D的数据传输的候选子帧的集合。终端设备根据位图信息和第二资源进行D2D的数据传输。终端设备可以通过预配置或基站发送的信息确定预留子帧的数目和预留子帧的时域位置,进一步准确地根据位图信息使用第二资源进行D2D的数据传输。

Description

一种资源配置方法、终端设备及基站 技术领域
本发明涉及通信技术领域,尤其涉及一种资源配置方法、终端设备及基站。
背景技术
近年来车联网越来越受到人们的关注,通过车车通信或者车与路边单元之间的通信从而提高道路交通的安全性、可靠性,提升交通通行效率。智能交通系统(Intelligent Transportation Systems,ITS)包括车车通信、车路通信等车联网技术。ITS使用的传输技术包括第四代通信网络车辆通信(Long Term Evolution-Vehicle,LTE-V)传输技术。其中LTE-V通常采用设备到设备(Device-to-Device,D2D)的通信方式。
LTE-V系统中车车通信存在两种场景:有小区覆盖(in coverage,IC)和无小区覆盖(out of coverage,OOC),如图1所示。在OOC场景下,采用全球卫星导航系统(Global Navigation Satellite System,GNSS)作为LTE-V同步源,在IC场景下,采用基站或者GNSS作为LTE-V的同步源。另外,终端设备也可以作为同步源,在IC或者OOC的场景下,如果终端设备既接收不到GNSS的信号,也接收不到基站的信号,终端设备可以自己作为同步源,并且发送同步信号。同步源用于车辆终端获取定时同步。车辆终端之间通过配置LTE-V系统的同步资源发送同步子帧的形式实现定时同步。
在LTE-V系统中,同步资源可以通过预配置或者基站发送,在IC场景下,通常只有一套同步资源。其中,车辆终端可接收基站或GNSS发送的同步源信号,车辆终端采用LTE-V系统的同步资源将同步信息发送给其他车辆终端设备,例如图1中的终端设备V2将同步信息发送给终端设备V3。在OOC场景下,通常有两套同步资源。其中,当车辆终端设备接收不到GNSS发送的同步源信 号时,如图1中终端设备V3可通过一套同步资源接收终端设备V2发送同步信息,同时,终端设备V3可通过另一套同步资源向终端设备V4和/或V5发送同步信息。每套同步资源内,同步信号的周期是固定的,例如同步周期为160ms,如果配置了两套同步资源,两套同步资源的时间偏移不同,因此两套同步资源是时分的,小区外的用户在其中的一套同步资源内接收同步信号,在另外一套同步资源内发送同步信号。
在LTE-V系统中,同步子帧并不用来进行数据传输,因此可用于LTE-V数据传输的资源池的子帧是去除同步子帧后的系统子帧,并且资源池的配置是通过一个位图来表示的,该位图的长度为16、20或者100比特,位图中的每比特指示资源池中的子帧是否可用。一个系统帧号(System Frame Number,SFN)或者直接帧号(Direct Frame Number,DFN)的周期包含10240个子帧,如果去除掉同步子帧后剩余的子帧的数目,并不是所述位图长度的整数倍,会导致某个位图指示跨越SFN或DFN周期边界,从而导致指示模糊。因此,在LTE-V系统中,会预留一定数目的子帧,这些预留子帧并不用来做LTE-V数据传输,从而使得去除掉同步子帧和预留子帧后剩余的LTE-V资源池的子帧能够用整数倍的位图来表示,避免一个位图指示跨越SFN或DFN的周期边界所导致的指示模糊,如图2所示,201表示SFN或DFN中的同步子帧,202表示SFN或DFN中去除同步子帧后的子帧,也可理解为LTE-V资源池。203表示位图指示跨越SFN或DFN的周期边界所导致的指示模糊。
但是,目前现有技术中,对于如何使得终端设备确定预留子帧的位置,准确根据位图使用LTE-V资源池进行数据传输,目前还没有相应的讨论。
发明内容
本发明实施例涉及一种资源配置方法、终端设备及基站。解决现有技术不能使终端确定预留子帧的位置,准确根据位图使用LTE-V资源池进行数据传输的问题。
在第一方面,本发明实施例提供了一种资源配置方法,该方法包括:终端设备获取第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息,其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输。所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置。所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源,其中,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合。所述终端设备根据所述位图信息和所述第二资源进行D2D的数据传输。
本发明实施例提供的资源配置方法,终端设备可以通过预配置或基站发送的信息确定预留子帧的数目和预留子帧的时域位置,进一步准确地根据位图使用第二资源进行D2D的数据传输。
在可选的实施例中,所述至少一套同步资源的配置信息包括:同步周期信息和每套同步资源中起始同步子帧的偏移量信息;所述第一资源的配置信息为所述第一资源包括的子帧数目信息;所述位图信息包括位图长度信息。所述终端设备根据所述第一资源包括的子帧数目信息、所述TDD系统的配置信息、所述同步周期信息以及所述至少一套同步资源中每套同步资源的起始同步子帧的偏移量信息中的至少一种信息确定所述第一资源中每套同步资源包括的同步子帧的数目、所述同步子帧在所述第一资源的时域位置、所述下 行子帧的数目、所述特殊子帧的数目、所述下行子帧在所述第一资源的时域位置以及所述特殊子帧在所述第一资源的时域位置中的至少一种。
在可选的实施例中,所述终端设备根据所述预留子帧的配置信息确定所述预留子帧的数目,或,所述终端设备根据第一资源中的同步子帧的数目信息、所述下行子帧的数目信息、所述特殊子帧的数目信息中的至少一种信息、所述第一资源包括的子帧数目信息以及所述位图的长度信息确定所述预留子帧的数目。
具体地,预留子帧的数目可以是预配置或基站发送的信息。预留子帧的数目以使资源池的候选子帧的数目能够被位图的长度整除为准,可以计算最小预留子帧数目或者配置更多的预留子帧数目。
在可选的实施例中,所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息。当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,所述终端设备根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到第一除数C1和余数Y,其中,所述C1为大于零的整数,所述Y为大于零的整数,且所述Y小于所述每套同步资源包括的同步子帧的数目;所述终端设备确定每个同步周期内包括C1个所述预留子帧,且前Y个同步周期内还各包括一个所述预留子帧;所述终端设备根据所述预留子帧的偏移量确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所 述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息。当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,所述终端设备根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到所述C1和所述Y;所述终端设备根据所述每套同步资源包括的同步子帧的数目除以所述Y得到第二除数C2,其中,所述C2为大于零的整数;所述终端设备确定每个同步周期内包括C1个所述预留子帧,且每C2个所述同步周期内还各包括一个所述预留子帧;所述终端设备根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息。当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目大于所述预留子帧的数目时,所述终端设备根据所述每套同步资源包括的同步子帧的数目除以所述预留子帧的数目得到第三除数C3,其中,所述C3为大于零的整数;所述终端设备确定每C3个所述同步周期内包括一个所述预留子帧;所述终端设备根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息。所述终端设备根据所述第一资源包括的子帧数目除以所述预留子帧的数目,再除以所述时域周期得到第四除数C4,其中,所述C4为大于零的整数;所述终端设备根据所述C4和所述时域周期确定相邻两个预留子帧的子帧偏 差;所述终端设备根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息。所述终端设备根据所述第一资源包括的子帧数目除以所述预留子帧的数目得到第五除数C5,其中,所述C5为大于零的整数;所述终端设备根据所述C5确定相邻两个预留子帧的子帧偏差;所述终端设备根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
在可选的实施例中,当所述同步子帧的数目不为零,且当所述预留子帧的时域位置与第一同步子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一同步子帧的相邻N个子帧的时域位置,所述N为大于或者等于1的整数。
在可选的实施例中,当所述下行子帧的数目不为零,且当所述预留子帧的时域位置与第一下行子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一下行子帧的相邻M个子帧的时域位置,所述M为大于或者等于1的整数。
在可选的实施例中,当所述特殊子帧的数目不为零,且当所述预留子帧的时域位置与第一特殊子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一特殊子帧的相邻S个子帧的时域位置,所述S为大于或者等于1的整数。
具体地,预留子帧的配置信息包括预留子帧在同步周期内的偏移量信息,或预留子帧在时域周期间隔时,相对第一资源的起始子帧的偏移信息,或预留子帧均分在第一资源中相对第一资源的起始子帧的偏移信息。另外,预留子帧的偏移信息还可包括预留子帧与同步子帧重合时的偏移信息,预留子帧与下行子帧或特殊子帧重合时的偏移信息等信息。
在可选的实施例中,所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述同步子帧在所述第一资源的时域位置信息、所述预留子帧的数目信息、所述预留子帧在所述第一资源的时域位置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述第二资源。
具体地,当同步子帧的数目、下行子帧的数目或特殊子帧的数目为零时,终端设备确定第二资源时不考虑数目为零的子帧对应的时域位置信息。
在可选的实施例中,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息为预配置的信息或从基站接收的信息。
在第二方面,本发明实施例提供了一种资源配置方法,该方法包括:基站向终端设备发送第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息;其中,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置;其中,所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预 留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源。
其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合。
在可选的实施例中,所述位图信息包括位图长度信息。如果所述基站向所述终端设备发送所述预留资源的配置信息,且所述预留资源的配置信息包括所述预留子帧的数目信息,则所述预留子帧的数目使所述候选子帧的数目被位图的长度整除。
在第三方面,本发明实施例提供了一种终端设备,该终端设备包括:获取单元,用于获取第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息,其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输。确定单元,用于根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置。确定单元,还用于根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源,其中,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合。数据传输单元,用于根据所述位图信息和所述第二资源进行D2D的数据传输。
在可选的实施例中,所述至少一套同步资源的配置信息包括:同步周期信息和每套同步资源中起始同步子帧的偏移量信息;所述第一资源的配置信息为所述第一资源包括的子帧数目信息;所述位图信息包括位图长度信息。所述确定单元,具体用于根据所述第一资源包括的子帧数目信息、所述TDD系统的配置信息、所述同步周期信息以及所述至少一套同步资源中每套同步资源的起始同步子帧的偏移量信息中的至少一种信息确定所述第一资源中每套同步资源包括的同步子帧的数目、所述同步子帧在所述第一资源的时域位置、所述下行子帧的数目、所述特殊子帧的数目、所述下行子帧在所述第一资源的时域位置以及所述特殊子帧在所述第一资源的时域位置中的至少一种。
在可选的实施例中,所述确定单元,具体用于根据所述预留子帧的配置信息确定所述预留子帧的数目,或,所述确定单元,具体用于根据第一资源中的同步子帧的数目信息、所述下行子帧的数目信息、所述特殊子帧的数目信息中的至少一种信息、所述第一资源包括的子帧数目信息以及所述位图的长度信息确定所述预留子帧的数目。
在可选的实施例中,所述确定单元,具体用于根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息;所述确定单元,具体用于当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到第一 除数C1和余数Y,其中,所述C1为大于零的整数,所述Y为大于零的整数,且所述Y小于所述每套同步资源包括的同步子帧的数目;确定每个同步周期内包括C1个所述预留子帧,且前Y个同步周期内还各包括一个所述预留子帧;根据所述预留子帧的偏移量确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息;所述确定单元,具体用于当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到所述C1和所述Y;根据所述每套同步资源包括的同步子帧的数目除以所述Y得到第二除数C2,其中,所述C2为大于零的整数;确定每个同步周期内包括C1个所述预留子帧,且每C2个所述同步周期内还各包括一个所述预留子帧;根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息;所述确定单元,具体用于当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目大于所述预留子帧的数目时,根据所述每套同步资源包括的同步子帧的数目除以所述预留子帧的数目得到第三除数C3,其中,所述C3为大于零的整数;确定每C3个所述同步周期内包括一个所述预留子帧;根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息;所述确定单元,具体用于根据所述第一资源包括的子帧数目除以所述预留子帧的数目,再除以所述时域周期得到第四除数C4,其中,所述C4为大于零的整数;根据所述C4和所述时域周期确定相邻两个预留子帧的子帧偏差;根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
在可选的实施例中,所述预留资源的配置信息包括预留子帧的偏移量信息;所述确定单元,具体用于根据所述第一资源包括的子帧数目除以所述预留子帧的数目得到第五除数C5,其中,所述C5为大于零的整数;根据所述C5确定相邻两个预留子帧的子帧偏差;根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
在可选的实施例中,所述确定单元,具体用于当所述同步子帧的数目不为零,且当所述预留子帧的时域位置与第一同步子帧的时域位置重合时,确定所述预留子帧在所述第一同步子帧的相邻N个子帧的时域位置,所述N为大于或者等于1的整数。
在可选的实施例中,所述确定单元,具体用于当所述下行子帧的数目不为零,且当所述预留子帧的时域位置与第一下行子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一下行子帧的相邻M个子帧的时域位置,所述M为大于或者等于1的整数。
在可选的实施例中,所述确定单元,具体用于当所述特殊子帧的数目不为零,且当所述预留子帧的时域位置与第一特殊子帧的时域位置重合时,确定所述预留子帧在所述第一特殊子帧的相邻S个子帧的时域位置,所述S为大于或者等于1的整数。
在可选的实施例中,所述确定单元,具体还用于根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、 所述同步子帧在所述第一资源的时域位置信息、所述预留子帧的数目信息、所述预留子帧在所述第一资源的时域位置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述第二资源。
在可选的实施例中,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息为预配置的信息或从基站接收的信息。
在第四方面,本发明实施例提供了一种基站,该基站包括:发送单元,用于向终端设备发送第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息;其中,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置;其中,所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源。
其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至 少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合。
在可选的实施例中,所述位图信息包括位图长度信息;如果其向所述终端设备发送所述预留资源的配置信息,且所述预留资源的配置信息包括所述预留子帧的数目信息时,所述基站还包括:确定单元,用于确定所述预留子帧的数目,以使所述候选子帧的数目被位图的长度整除。
基于上述技术方案,本发明实施例提供资源配置方法、终端设备及基站,可以通过预配置或基站发送的信息确定预留子帧的数目和预留子帧的时域位置,进一步准确地根据位图使用第二资源进行D2D的数据传输。
附图说明
图1为LTE-V车联网应用场景示意图;
图2为LTE-V资源池位图指示示意图;
图3为本发明实施例提供的通信系统架构示意图;
图4为本发明实施例提供的一种资源配置方法流程图;
图5为本发明实施例提供的一种资源配置示意图;
图6为本发明实施例提供的又一种资源配置示意图;
图7为本发明实施例提供一种终端设备架构图;
图8为本发明实施例提供又一种终端设备架构图;
图9为本发明实施例提供一种基站架构图;
图10为本发明实施例提供又一种基站架构图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行描述,显然,所描述 的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明实施例描述的网络架构以及业务场景是为了更加清楚的说明本发明实施例的技术方案,并不构成对于本发明实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本发明实施例提供的技术方案对于类似的技术问题,同样适用。
本发明实施例中,名词“网络”和“系统”经常交替使用,但本领域的技术人员可以理解其含义。本发明实施例所涉及到的基站是一种部署在无线接入网中用以为终端设备提供无线通信功能的装置。具有无线资源的管理功能,与终端设备进行通信,或者作为中央控制器协助终端设备间进行直接通信。
图3为本发明实施例提供的通信系统架构示意图。本发明实施例描述的技术可以适用于长期演进(Long Term Evolution,LTE)系统,或其他采用各种无线接入技术的无线通信系统,例如采用码分多址,频分多址,时分多址,正交频分多址,单载波频分多址等接入技术的系统。此外,还可以适用于使用LTE系统后续的演进系统,如第五代5G系统等。为清楚起见,这里仅以LTE系统为例进行说明。更具体地,本发明实施例提供的通信方法适用于车联网系统中,或者D2D系统中,有无基站参与均可。
本发明实施例所涉及到的终端设备可以包括各种具有无线通信功能的车载设备或连接到无线调制解调器的其它处理设备。包括但不限于车辆、手持设备、可以与基站设备进行通信或者与其他的终端设备进行直接通信的设备等。为方便描述,本发明实施例中,上面提到的设备统称为终端设备。
如图3所示,终端设备通过预配置或基站发送的第一资源的配置信息、位图信息、预留子帧的配置信息、至少一套同步资源的配置信息、时域周期信息、时分双工(Time Division Duplexing,TDD)系统配置信息中的至少 一种信息确定同步子帧的数目、同步子帧的时域位置、TDD系统下行子帧的数目、TDD系统特殊子帧的数目、TDD系统下行子帧的时域位置、TDD系统特殊子帧的时域位置中的至少一个。进一步,终端设备根据第一资源包括的子帧数目、位图信息、以及同步子帧的数目、TDD系统下行子帧的数目以及TDD系统特殊子帧的数目中的至少一种确定预留子帧的数目,或终端设备根据预留子帧的配置信息确定预留子帧的数目。终端设备根据第一资源的配置信息、位图信息、时域周期信息、同步子帧的数目、同步子帧的时域位置、TDD系统下行子帧的数目、TDD系统特殊子帧的数目、TDD系统下行子帧的时域位置、TDD系统特殊子帧的时域位置以及第一资源中预留子帧的数目中的至少一个确定预留子帧的时域位置。进一步,终端设备根据第一资源的配置信息、同步子帧的数目、同步子帧的时域位置、第一资源中预留子帧的数目、预留子帧的时域位置、TDD系统下行子帧的数目、TDD系统特殊子帧的数目、TDD系统下行子帧的时域位置、TDD系统特殊子帧的时域位置中的至少一种确定第二资源。其中,第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输。第二资源为终端设备进行D2D数据传输的候选子帧的集合。终端设备根据位图信息和第二资源进行D2D数据传输。
在本发明实施例提供的通信系统中,终端设备可以通过预配置或基站发送的信息确定预留子帧的数目和预留子帧的时域位置,进一步准确地根据位图使用第二资源进行D2D的数据传输。
以下结合附图4,详细对本发明实施例提供的方案进行说明,图4为本发明实施例提供的一种资源配置方法流程图,在本发明实施例中实施主体为终端设备。如图4所示,该实施例具体包括以下步骤:
步骤S101,终端设备获取第一资源的配置信息、至少一套同步资源的配 置信息、时域周期信息、位图信息、预留资源的配置信息以及TDD系统的配置信息中的至少一种信息。
其中,第一资源为至少一个子帧的集合,例如,所述第一资源包含10240个或其它数量的子帧,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,即所述TDD系统所包含的子帧包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输。
在可选的实施例中,第一资源可以是SFN或者DFN。其中,SFN包括的多个子帧是时分,DFN包括的多个子帧也是时分的。应当可以理解的是,下面提到的同步周期可以以子帧为单位,子帧的数目反映周期的大小,例如,T个子帧为一个同步周期,T为自然数。
可选地,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息为预配置的信息或从基站接收的信息。
在可选的实施例中,终端设备可以预先存储第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息,或者终端设备可从基站接收第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息。
在可选的实施例中,终端设备预先存储上述相关配置信息是通过终端设备的协议,使终端设备预先存储上述相关配置信息的一种或多种。
步骤S102,终端设备根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置。
可选地,所述至少一套同步资源的配置信息包括:同步周期信息和每套同步资源中起始同步子帧的偏移量信息;所述第一资源的配置信息为所述第一资源包括的子帧数目信息;所述位图信息包括位图长度信息。
在可选的实施例中,同步周期指的是同步信号的周期。这里的同步信号可以为同步子帧。在本发明的其他实施例中,同步信号也可以为其他形式,以使终端设备之间通过发送或接收同步信号达到定时同步的效果。本发明实施例仅以同步子帧为例进行说明,每个同步周期内包括每套同步资源的一个同步子帧。也就是说,当第一资源中配置两套同步资源时,并且两套同步资源的同步周期是相同的,但是每套同步资源中的起始同步子帧的偏移量不同,则每个同步周期内将包括两个同步子帧。同步周期是可通过终端设备的协议或基站控制改变的,以根据实际需要调整,本发明实施例中,以同步周期为160ms为例进行说明。
进一步地,终端设备根据所述第一资源包括的子帧数目信息、所述TDD系统的配置信息、所述同步周期信息以及所述至少一套同步资源中每套同步资源的起始同步子帧的偏移量信息中的至少一种信息确定所述第一资源中每套同步资源包括的同步子帧的数目、所述同步子帧在所述第一资源的时域位置、所述下行子帧的数目、所述特殊子帧的数目、所述下行子帧在所述第一资源的时域位置以及所述特殊子帧在所述第一资源的时域位置中的至少一种。
在可选的实施例中,当终端设备接收到至少一套同步资源的配置信息时,终端设备则根据其中的同步周期信息确定所述第一资源中每套同步资源包括的同步子帧的数目,以及同步子帧在所述第一资源的时域位置。在可选的实施例中,同步子帧通常按同步周期均匀分布在第一资源中。当第一资源为SFN或者DFN时,一个SFN或者DFN的周期通常包括10240个子帧。一个子帧对应1ms的时间。同步周期160ms,则一个同步周期包括160个子帧,其中该160个子帧中包括每套同步资源的一个同步子帧。进一步地,每套同步资源包 括的同步子帧的数目为10240/160=64个。每套同步资源中的同步子帧根据其起始同步子帧的偏移量信息和同步周期均匀地分布在第一资源对应的时域位置。
在可选的实施例中,当终端设备接收到TDD系统的配置信息时,终端设备则根据所述TDD系统的配置信息确定所述第一资源中下行子帧的数目、特殊子帧的数目、下行子帧在第一资源的时域位置以及特殊子帧在第一资源的时域位置。其中,TDD系统包含的特殊子帧为包括下行导频时隙(Downlink Pilot Time Slot,DwPTS)、保护间隔(Guard Period,GP)和上行导频时隙(Uplink Pilot Time Slot,UpPTS)的子帧。
可选地,终端设备根据所述预留子帧的配置信息确定所述预留子帧的数目,或,所述终端设备根据第一资源中的同步子帧的数目信息、所述下行子帧的数目信息、所述特殊子帧的数目信息中的至少一种信息、所述第一资源包括的子帧数目信息以及所述位图的长度信息确定所述预留子帧的数目。
在可选的实施例中,预留子帧的数目可以是预配置或基站发送的,其中,基站发送预留子帧的数目需要通过向终端设备发送预留资源的配置信息实现。预留子帧的数目以使资源池的候选子帧的数目能够被位图的长度整除为准,例如,位图为一个16比特的字符,则位图中位的个数即为16,位图的长度为16。当终端获取的信息中包括同步资源的配置信息和TDD系统资源的配置信息时,需要将同步子帧、下行子帧以及特殊子帧从第一资源中除去后,再除去配置的预留子帧的数目,以使第一资源中剩余的子帧的数目可以被位图的长度整除。
在可选的实施例中,预留子帧的数目以使资源池的候选子帧的数目能够被位图的长度整除为准,则表示预留子帧的数目可以为第一资源包括的子帧的数目减去同步子帧、下行子帧以及特殊子帧的数目后,再除以位图的长度得到的余数。按此种情况计算的预留子帧的数目为最小预留子帧数目。另外,在一些需要的场合,例如可通过控制预留子帧的数目比例以控制第一资源中 用于LTE-V资源池候选子帧的比例。或在一些需要的场合,需要预留较多的资源。此时,也可通过在预留资源的配置信息中直接配置预留子帧的数目信息,此时预留子帧的数目信息可能为前面计算的最小预留子帧数目加上整数倍的位图长度。
综上,应当理解的是,预留子帧的数目用于调控LTE-V资源池候选子帧的数目,以使候选子帧的数目可以被位图的长度整除。本领域技术人员应当理解的是,在预留子帧数目满足上述条件的情况下,本发明实施例在步骤S102、以及下述实施例一、实施例二和实施例三提供的预留子帧的时域位置确定方法同样适用。
如前所述,在配置同步资源的情况下,同步周期为Xms(在LTE-V系统中,X=160),因此可以根据同步资源的数目K(如K=1,2),每个同步资源内同步子帧的周期Xms,确定预留子帧的数目Q。设位图长度为G,第一资源包括的子帧数目为R,则先根据同步周期X和同步资源的数目K确定同步子帧的数目D=K*R/X,然后,根据第一资源包括的子帧数目为R、同步子帧的数目D和位图长度G确定预留子帧的最小数目,具体计算如公式1:
Q=mod(R-D,G)              (1)
其中,mod()表示取余数操作。针对不同示例下,根据位图长度、同步子帧数目以及第一资源包括的子帧数目计算预留子帧的数目,具体可参见表1。
另外,在表1所示的情况中,未配置TDD系统的配置信息,即第一资源中不包括TDD系统对应的下行子帧和特殊子帧。当第一资源中包括TDD系统对应的下行子帧和特殊子帧时,在计算预留子帧的数目时,还应当在第一资源包括的子帧数目中减去相应的下行子帧和特殊子帧数目后,再除以位图长度。具体计算方法可参见公式(1)。
为方便理解本发明,表1中示出了根据同步子帧的数目、位图长度、第一资源包括的子帧数目计算预留子帧的情况。可以理解,在表1中,所示为 最小的预留子帧数目的情况。本发明实施例还可包括更多的预留子帧数目。在此仅以最小预留子帧数目为例进行说明。在表1中,第一资源为SFN,包含10240个子帧,同步周期是160ms。在可选的实施例中的是,当配置两套同步资源时,同步子帧的数目为128个。
表1
Figure PCTCN2016104750-appb-000001
具体地,如表1中的示例5,在第一资源SFN中配置了一套同步资源,因此在一个SFN(包括10240个子帧)周期内包含64个同步子帧,此时位图的长度是20,因此可以确定预留子帧的数目为:Q=mod(10240-64,20)=16。
可选地,终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置。
在可选的实施例中,为了保证LTE-V业务的时延需求,预留子帧需要在整个第一资源包括的子帧内尽可能的均匀分配。
在可选的实施例中,本发明实施例提供的资源配置方法,可以通过配置预留子帧的时域位置与同步子帧的时域位置相关,或预留子帧之间的子帧偏差为固定时域周期,或在第一资源包括的子帧中均匀分布预留子帧的方式,使得终端设备可以根据预留子帧的位置相关信息确定预留子帧的时域位置。具体可参见下述实施例一、实施例二以及实施例三中的详细介绍,在此不做赘述。
步骤S103,终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源,其中,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合。
可选地,第二资源为LTE-V资源池。
在可选的实施例中,终端设备接收到位图的信息后,根据第一资源包括的子帧数目信息、第一资源中每套同步资源包括的同步子帧的数目信息、同步子帧在所述第一资源的时域位置、预留子帧的数目、预留子帧在所述第一资源的时域位置、下行子帧的数目、下行子帧在所述第一资源的时域位置、特殊子帧的数目以及所述特殊子帧在所述第一资源的时域位置中的至少一种信息,确定第一资源包括的子帧中除同步子帧、预留子帧、下行子帧、特殊子帧以外的候选子帧的时域位置,进一步地,终端设备可将候选子帧的位置与位图对应,根据位图的指示使用候选子帧进行数据传输。
其中,当同步子帧的数目、下行子帧的数目或特殊子帧的数目为零时,终端设备确定第二资源时不考虑数目为零的子帧对应的时域位置信息。
在可选的实施例中,当所述同步子帧的数目不为零,且所述下行子帧和所述特殊子帧的数目为零时,终端设备根据所述第一资源包括的子帧数目信 息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述同步子帧在所述第一资源的时域位置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息确定所述第二资源。
当所述同步子帧、所述下行子帧以及所述特殊子帧的数目均不为零时,终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述同步子帧在所述第一资源的时域位置信息、所述预留子帧的数目信息、所述预留子帧在所述第一资源的时域位置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息确定所述第二资源。
当所述同步子帧、所述下行子帧以及所述特殊子帧的数目为零时,终端设备根据所述第一资源包括的子帧数目信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息确定所述第二资源。
当所述同步子帧的数目为零,且所述下行子帧和所述特殊子帧的数目不为零时,终端设备根据所述第一资源包括的子帧数目信息、所述预留子帧的数目信息、所述预留子帧在所述第一资源的时域位置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息确定所述第二资源。
步骤S104,终端设备根据所述位图信息和所述第二资源进行D2D的数据传输。
具体地,终端设备可将候选子帧的位置与位图对应,根据位图的指示使用候选子帧进行数据传输,包括:将位图在第二资源的子帧范围内重复,使得所有的第二资源中的子帧都有位图中的比特位来指示,位图对应比特位的数值指示候选子帧中对应的子帧是否可用于终端设备进行D2D的数据传输。
图4所示的资源配置方法具体可参见下述实施例一、实施例二以及实施 例三提供的三个具体实施例。
实施例一
具体地,LTE-V系统的同步资源用于终端设备之间进行同步,同步子帧的位置是预配置或者基站发送的,因此预留子帧的位置可以由同步子帧的位置确定。
在一个具体的实施例中,终端设备获取同步资源的配置信息。终端设备根据同步资源的配置信息确定同步子帧的数目和时域位置。终端设备获取预留子帧的数目,其中,预留子帧的数目可以是基站发送的,预配置的,或者是根据同步子帧的个数、第一资源包含的子帧个数以及资源池位图的长度计算得到。终端设备根据同步子帧的位置确定预留子帧的位置,具体如下:
在一个示例中,当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,所述终端设备根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到第一除数C1和余数Y;所述终端设备根据所述每套同步资源包括的同步子帧的数目除以所述Y得到第二除数C2,其中,所述C1为大于零的整数,所述Y为大于零的整数,所述C2为大于零的整数;所述终端设备确定每个同步周期内包括C1个所述预留子帧,且所述第一资源范围内从第一个同步周期开始的每C2个所述同步周期内还各包括一个所述预留子帧;所述终端设备根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置。
其中,预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
具体地,可设一个SFN内包含P个同步周期,Q个预留子帧。当Q≥P时,
Figure PCTCN2016104750-appb-000002
Y=Q-C1*P;
Figure PCTCN2016104750-appb-000003
Figure PCTCN2016104750-appb-000004
表示向下取整。即每个同步周期内包含C1个预留子帧,且SFN周期内从第一个同步周期开始的每C2个同步周期内还各包括一个预留子帧。即剩余的Y个预留子帧均匀分布在P个同步周期 内。
具体地,如表1中的示例2,配置了一套同步资源,包含64个同步周期,预留子帧是76个,因此C1=1,Y=12,C2=5;即每个同步周期内首先包含一个预留子帧,剩余的12个预留子帧均匀分布在64个同步周期内,即从第一个同步周期开始的每5个同步周期包含1个剩余的预留子帧。
进一步地,预留子帧的配置信息包括预留子帧的偏移量信息。终端设备根据预留子帧的数目和每套同步资源包括的同步子帧的数目确定每个同步周期内包括的预留子帧的数目后,再根据预留子帧的偏移量信息确定预留子帧在每个同步周期内的时域位置。例如,预留子帧的偏移量信息指示同步周期内第一个预留子帧相对同步周期内起始子帧或同步周期内第一个同步子帧的子帧偏差为X个子帧,其中X为大于或者等于零的整数,且X小于同步周期。另外,同步周期内还可能包括多于一个预留子帧的情况,该预留子帧的偏移量信息指示相应同步周期内第二个预留子帧相对同步周期内起始子帧或同步周期内第一个同步子帧的子帧偏差为Y个子帧,其中Y为大于或者等于零的整数,且Y小于同步周期。依次类推,在此不做穷举。另外,同步周期内,如果包括多个预留子帧,则该多个预留子帧的时域位置不重合,当根据预留子帧的偏移量得到预留子帧的时域位置与同步子帧的时域位置重合时,该预留子帧向前或前后偏移一个子帧,也可偏移其他固定长度的子帧。
在又一个示例中,当同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,所述终端设备根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到第一除数C1和余数Y,其中,所述C1为大于零的整数,所述Y为大于零的整数,且所述Y小于所述每套同步资源包括的同步子帧的数目;所述终端设备确定每个同步周期内包括C1个所述预留子帧,且前Y个同步周期内还各包括一个所述预留子帧;所述终端设备根据所述预留子帧的偏移量确定所述预留子帧在所述第一资源的时域位置。
其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
同样地,可设一个SFN内包含P个同步周期,Q个预留子帧。当Q≥P时,
Figure PCTCN2016104750-appb-000005
Y=Q-C1*P;剩余的Y个预留子帧位于前Y个同步周期内。
进一步地,根据预留子帧的偏移量确定预留子帧的具体时域位置,可参见上述详细介绍,在此不做赘述。
在另一个示例中,当同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目大于所述预留子帧的数目时,所述终端设备根据所述每套同步资源包括的同步子帧的数目除以所述预留子帧的数目得到第三除数C3,其中,所述C3为大于零的整数;所述终端设备确定从所述第一资源范围内第一个同步周期开始的每C3个所述同步周期内包括一个所述预留子帧;所述终端设备根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合。
同样地,可设一个SFN内包含P个同步周期,Q个预留子帧。当Q<P时,
Figure PCTCN2016104750-appb-000006
即从第一个同步周期开始的每C3个同步周期包含一个预留子帧。
具体地,如表1中的示例5,配置了一套同步资源,包含64个同步周期,预留子帧是16个,此时C3=4,即每4个同步周期包含一个预留子帧,具体可参见图5所示。
如图5所示,501指示同步子帧,502指示一个同步周期。每个同步周期内包括一个同步子帧。503指示预留子帧,每4个同步周期内包括一个预留子帧。504指示预留子帧相对每4个同步周期内起始同步子帧的偏移子帧为481。在可选的实施例中,每4个同步周期内预留子帧相对起始同步子帧的偏移子帧还可为其他情况,根据预留子帧的偏移量信息确定。
在可选的实施例中,在上述的几个示例中,预留资源的配置信息包括预 留子帧的偏移量信息。每个同步周期内的预留子帧的时域位置相对于同步子帧的时域位置的偏移量(或子帧偏差)可以是固定的或者是预配置的,或者是基站发送的。
在可选的实施例中,通过上述几个示例,本发明实施例提供的资源配置方法中,预留子帧可以分布到同步周期内,并且预留子帧的位置相对于同步子帧的位置是固定的或者可配置的,从而可以使得终端设备通过同步子帧的位置信息确定预留子帧的位置。
实施例二
具体地,可设一个固定的时域周期,终端设备获取到该固定时域周期信息后,即可根据该时域周期和第一资源包括的子帧的数目确定预留子帧的位置。在可选的实施例中LTE-V的业务具有周期特性,因此可以将预留子帧的位置和LTE-V业务的周期绑定,将该时域周期设为业务周期。使得终端设备可以通过业务的周期确定预留子帧的位置。
在一个具体的实施例中,终端设备获取系统的业务周期配置。其中,该系统的业务周期配置可设为一个固定的时域周期。该业务周期配置可以是预配置的,或者是基站发送的。终端设备获取预留子帧的数目。终端设备根据业务周期(固定的时域周期)确定预留子帧的位置,具体如下:
在一个示例中,终端设备根据所述第一资源包括的子帧数目除以所述预留子帧的数目,再除以所述时域周期得到第四除数C4,其中,所述C4为大于零的整数;终端设备根据所述C4和所述时域周期确定相邻两个预留子帧的子帧偏差;终端设备根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
可选地,如LTE-V系统的业务周期为P=100ms,则设时域周期为100ms。对于表1中的示例1,系统中的预留子帧数Q为40,
Figure PCTCN2016104750-appb-000007
此时 第四除数C4=2。根据第四除数和固定周期100ms确定的子帧偏差为:G1=C4*100,因此,最终确定的相邻两个预留子帧之间子帧偏差为200ms,具体可参见图6所示。此时,从第一个时域周期开始的每200ms可以包含一个预留子帧,并且预留子帧在每个时域周期内的偏差位置可以是固定的,或者预配置,或者基站发送的。进一步地,根据预留子帧的偏移量确定预留子帧的具体时域位置,这里的预留子帧的偏移量为起始预留子帧相对第一资源的起始子帧的偏移量。
另外,如果预留子帧的位置和同步子帧的位置重合,则预留子帧向前或者向后移位至少一个子帧。
可选地,当所述同步子帧的数目不为零,且当所述预留子帧的时域位置与第一同步子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一同步子帧的相邻N个子帧的时域位置,所述N为大于或者等于1的整数。
在可选的实施例中,通过上述示例,本发明实施例提供的资源配置方法中,预留子帧可以按时域周期分布在第一资源内,并且预留子帧在每个时域周期内的位置是固定的或者可配置的,从而可以使得终端设备通过时域周期信息确定预留子帧的位置。
实施例三
具体地,预留子帧可以在第一资源中均匀分布,使得终端设备可以通过预留子帧的数目和第一资源包括的子帧的数目确定预留子帧的位置。
在一个具体的实施例中,终端设备获取预留子帧的数目。终端设备根据预留子帧在第一资源中周期内均匀分布确定预留子帧的位置,具体如下:
在一个示例中,终端设备根据所述第一资源包括的子帧数目除以所述预留子帧的数目得到第五除数C5,其中,所述C5为大于零的整数;所述终端设备根据所述C5确定相邻两个预留子帧的子帧偏差;所述终端设备根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数 目确定所述预留子帧在所述第一资源的时域位置。
具体地,如果系统中需要Q个预留子帧,则预留子帧的位置为:
Figure PCTCN2016104750-appb-000008
即每C5个子帧中包含一个预留子帧。进一步地,根据预留子帧的偏移量确定预留子帧的具体时域位置,这里的预留子帧的偏移量为起始预留子帧相对第一资源的起始子帧的偏移量。如果预留子帧的位置和同步子帧的位置重合,则预留子帧向前或者向后移位至少一个子帧。
可选地,当所述同步子帧的数目不为零,且当所述预留子帧的时域位置与第一同步子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一同步子帧的相邻N个子帧的时域位置,所述N为大于或者等于1的整数。
预留子帧在系统无线帧周期内均匀分布,即在第一资源范围内的第一个子帧开始的每
Figure PCTCN2016104750-appb-000009
个子帧中包含一个预留子帧。
在可选的实施例中,预留子帧的配置信息包括预留子帧在同步周期内的偏移量信息,或预留子帧在时域周期间隔时,相对第一资源的起始子帧的偏移信息,或预留子帧均分在第一资源中相对第一资源的起始子帧的偏移信息。另外,预留子帧的偏移信息还可包括预留子帧与同步子帧重合时的偏移信息,预留子帧与下行子帧或特殊子帧重合时的偏移信息等信息。
在可选的实施例中,通过上述示例,本发明实施例提供的资源配置方法中,预留子帧可以均匀分布在第一资源内,从而可以使得终端设备通过预留子帧的数目信息的确定预留子帧的位置。
本发明实施例提供的资源配置方法,结合前述图4所示的实施例以及实施例一、实施例二和实施例三提供的技术方案,使得终端设备可以根据同步子帧的位置确定预留子帧的位置,或根据业务周期或固定时域周期确定预留子帧的位置,或根据均匀分布原则确定预留子帧的位置。进一步使得终端设备可以准确根据位图使用LTE-V资源池进行数据传输。
上述实施例描述的方法,可使终端设备确定预留子帧的位置,准确根据 位图使用LTE-V资源池进行数据传输。相应地,本发明实施例提供一种终端设备,用以实现前述实施例中提供的资源配置方法及具体实施例一、实施例二和实施例三,如图7所示,所述终端设备包括:获取单元710、确定单元720和数据传输单元730。
所述终端设备的获取单元710用于获取第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息,其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行D2D的数据传输。
确定单元720用于根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置。
所述确定单元720还用于根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源,其中,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合.
数据传输单元730用于根据所述位图信息和所述第二资源进行D2D的数据传输。在可选的实施例中,所述数据传输单元730为发送单元或者接收单元,所述发送单元用于根据所述位图信息和所述第二资源进行D2D数据的发送,或所述接收单元用于根据所述位图信息和所述第二资源进行D2D数据的接收。
可选地,至少一套同步资源的配置信息包括:同步周期信息和每套同步 资源中起始同步子帧的偏移量信息;第一资源的配置信息为所述第一资源包括的子帧数目信息;位图信息包括位图长度信息。
可选地,确定单元720具体用于根据所述第一资源包括的子帧数目信息、所述TDD系统的配置信息、所述同步周期信息以及所述至少一套同步资源中每套同步资源的起始同步子帧的偏移量信息中的至少一种信息确定所述第一资源中每套同步资源包括的同步子帧的数目、所述同步子帧在所述第一资源的时域位置、所述下行子帧的数目、所述特殊子帧的数目、所述下行子帧在所述第一资源的时域位置以及所述特殊子帧在所述第一资源的时域位置中的至少一种。
可选地,确定单元720具体用于根据所述预留子帧的配置信息确定所述预留子帧的数目,或,确定单元720具体用于根据第一资源中的同步子帧的数目信息、所述下行子帧的数目信息、所述特殊子帧的数目信息中的至少一种信息、所述第一资源包括的子帧数目信息以及所述位图的长度信息确定所述预留子帧的数目。
可选地,确定单元720具体用于根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置。
可选地,预留资源的配置信息包括预留子帧的偏移量信息。
可选地,确定单元720具体用于当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到第一除数C1和余数Y,其中,所述C1为大于零的整数,所述Y为大于零 的整数,且所述Y小于所述每套同步资源包括的同步子帧的数目;确定每个同步周期内包括C1个所述预留子帧,且前Y个同步周期内还各包括一个所述预留子帧;根据所述预留子帧的偏移量确定所述预留子帧在所述第一资源的时域位置。
可选地,确定单元720具体用于当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到所述C1和所述Y;根据所述每套同步资源包括的同步子帧的数目除以所述Y得到第二除数C2,其中,所述C2为大于零的整数;确定每个同步周期内包括C1个所述预留子帧,且每C2个所述同步周期内还各包括一个所述预留子帧;根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置。
其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
可选地,确定单元720具体用于当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目大于所述预留子帧的数目时,根据所述每套同步资源包括的同步子帧的数目除以所述预留子帧的数目得到第三除数C3,其中,所述C3为大于零的整数;确定每C3个所述同步周期内包括一个所述预留子帧;根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置。
其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合。
可选地,确定单元720具体用于根据所述第一资源包括的子帧数目除以所述预留子帧的数目,再除以所述时域周期得到第四除数C4,其中,所述C4为大于零的整数;根据所述C4和所述时域周期确定相邻两个预留子帧的子帧 偏差;根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
可选地,确定单元720具体用于根据所述第一资源包括的子帧数目除以所述预留子帧的数目得到第五除数C5,其中,所述C5为大于零的整数;根据所述C5确定相邻两个预留子帧的子帧偏差;根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
可选地,确定单元720具体用于当所述同步子帧的数目不为零,且当所述预留子帧的时域位置与第一同步子帧的时域位置重合时,确定所述预留子帧在所述第一同步子帧的相邻N个子帧的时域位置,所述N为大于或者等于1的整数。
可选地,确定单元720具体用于当所述下行子帧的数目不为零,且当所述预留子帧的时域位置与第一下行子帧的时域位置重合时,确定所述预留子帧在所述第一下行子帧的相邻M个子帧的时域位置,所述M为大于或者等于1的整数。
可选地,确定单元720具体用于当所述特殊子帧的数目不为零,且当所述预留子帧的时域位置与第一特殊子帧的时域位置重合时,确定所述预留子帧在所述第一特殊子帧的相邻S个子帧的时域位置,所述S为大于或者等于1的整数。
可选地,确定单元720具体还用于根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述同步子帧在所述第一资源的时域位置信息、所述预留子帧的数目信息、所述预留子帧在所述第一资源的时域位置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述第二资源。
可选地,所述第一资源的配置信息、所述至少一套同步资源的配置信息、 所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息为预配置的信息或从基站接收的信息。
另外,本发明实施例提供的终端设备还可以采用的实现方式如下,用以实现前述本发明实施例中的通信方法,如图8所示,所述终端设备包括:接收器810、处理器820。存储器830和发射器840。
在可选的实施例中,前述图7所述的实施例中的获取单元710可以由接收器810或存储器830代替。具体地,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息为存储器830中预配置的信息或接收器810从基站接收的信息。
确定单元720可以由处理器820代替。数据传输单元830可以由接收器810或发射器840代替。
图8中各单元涉及的处理过程可参见前述图3至图7所示的具体实施例,在此不做赘述。
相应地,本发明实施例还提供一种基站,用以实现前述实施例中提供的资源配置方法及具体实施例一、实施例二和实施例三,如图9所示,所述基站包括:发送单元910和确定单元920。
所述基站的发送单元910用于向终端设备发送第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息;其中,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套 同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置;其中,所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源。
其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合。
可选地,所述位图信息包括位图长度信息。
可选地,如果其向所述终端设备发送所述预留资源的配置信息,且所述预留资源的配置信息包括所述预留子帧的数目信息时,所述基站的确定单元920用于确定所述预留子帧的数目,以使所述候选子帧的数目可以被位图的长度整除。另外,本发明实施例提供的基站还可以采用的实现方式如下,用以实现前述本发明实施例中的资源配置方法及具体实施例一、实施例二和实施例三,如图10所示,所述基站包括:发射器1010和处理器1020。
在可选的实施例中,前述图9所述的实施例中的发送单元910可以由发射器1010代替。确定单元920可以由处理器1020代替。图10中各单元涉及的处理过程可参见前述图9所示的具体实施例,在此不做赘述。
本发明实施例提供的资源配置方法、终端设备及基站,使得终端设备可 根据预配置的信息或基站发送的信息,确定预留子帧的数目。进一步根据同步子帧的位置确定预留子帧的位置,或根据业务周期或固定时域周期确定预留子帧的位置,或根据均匀分布原则确定预留子帧的位置。进一步使得终端设备可以准确根据位图使用LTE-V资源池进行D2D的数据传输。另外,当预配置的信息或基站发送的信息中包括TDD系统的配置信息时,终端设备确定预留子帧的数目时将TDD系统包含的下行子帧和特殊子帧一并排除,以及终端设备最终确定LTE-V资源池时也一并将下行子帧和特殊子帧排除在外,准确根据位图使用LTE-V资源池进行D2D的数据传输。
需要说明的是,本发明实施例提供的资源配置方法、终端设备及基站,不仅适用于LTE-V,以及LTE-V中的D2D数据传输领域,还可适用于其他场合。本领域技术人员可以理解的是,终端设备根据预配置或基站发送的规则确定预留资源的数目及时域位置,使得资源池包括的子帧数目与位图长度可以被位图的长度整除。以使位图可以将位图在资源池包括的子帧范围内重复,使得所有的资源池中的子帧都有位图中的比特位来指示的实现方式,均应当属于本发明实施例的保护范围。
专业人员应该还可以进一步意识到,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、计算机软件或者二者的结合来实现,为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。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发明的范围。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤是可以通过程序来指令处理器完成,所述的程序可以存储于计算机可读存储介质中,所述存储介质是非短暂性(英文:non-transitory)介质,例如随机存取存储器,只读存储器,快闪存储器,硬盘,固态硬盘,磁带(英文: magnetic tape),软盘(英文:floppy disk),光盘(英文:optical disc)及其任意组合。
以上所述,仅为本发明较佳的具体实施方式,但本发明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发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应该以权利要求的保护范围为准。

Claims (28)

  1. 一种资源配置方法,其特征在于,所述方法包括:
    终端设备获取第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息,其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输;
    所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置;
    所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源,其中,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合;
    所述终端设备根据所述位图信息和所述第二资源进行D2D的数据传输。
  2. 根据权利要求1所述的方法,其特征在于,所述至少一套同步资源的配置信息包括:同步周期信息和每套同步资源中起始同步子帧的偏移量信息;
    所述第一资源的配置信息为所述第一资源包括的子帧数目信息;
    所述位图信息包括位图长度信息;
    所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置,包括:
    所述终端设备根据所述第一资源包括的子帧数目信息、所述TDD系统的 配置信息、所述同步周期信息以及所述至少一套同步资源中每套同步资源的起始同步子帧的偏移量信息中的至少一种信息确定所述第一资源中每套同步资源包括的同步子帧的数目、所述同步子帧在所述第一资源的时域位置、所述下行子帧的数目、所述特殊子帧的数目、所述下行子帧在所述第一资源的时域位置以及所述特殊子帧在所述第一资源的时域位置中的至少一种;
    所述终端设备根据所述预留子帧的配置信息确定所述预留子帧的数目,或,所述终端设备根据第一资源中的同步子帧的数目信息、所述下行子帧的数目信息、所述特殊子帧的数目信息中的至少一种信息、所述第一资源包括的子帧数目信息以及所述位图的长度信息确定所述预留子帧的数目;
    所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置。
  3. 根据权利要求2所述的方法,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置,包括:
    当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧 的数目小于或者等于所述预留子帧的数目时,
    所述终端设备根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到第一除数C1和余数Y,其中,所述C1为大于零的整数,所述Y为大于零的整数,且所述Y小于所述每套同步资源包括的同步子帧的数目;
    所述终端设备确定每个同步周期内包括C1个所述预留子帧,且前Y个同步周期内还各包括一个所述预留子帧;
    所述终端设备根据所述预留子帧的偏移量确定所述预留子帧在所述第一资源的时域位置;
    其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
  4. 根据权利要求2所述的方法,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置,包括:
    当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,
    所述终端设备根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到所述C1和所述Y;
    所述终端设备根据所述每套同步资源包括的同步子帧的数目除以所述Y 得到第二除数C2,其中,所述C2为大于零的整数;
    所述终端设备确定每个同步周期内包括C1个所述预留子帧,且每C2个所述同步周期内还各包括一个所述预留子帧;
    所述终端设备根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;
    其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
  5. 根据权利要求2所述的方法,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置,包括:
    当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目大于所述预留子帧的数目时,
    所述终端设备根据所述每套同步资源包括的同步子帧的数目除以所述预留子帧的数目得到第三除数C3,其中,所述C3为大于零的整数;
    所述终端设备确定每C3个所述同步周期内包括一个所述预留子帧;
    所述终端设备根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;
    其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合。
  6. 根据权利要求2所述的方法,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置,包括:
    所述终端设备根据所述第一资源包括的子帧数目除以所述预留子帧的数目,再除以所述时域周期得到第四除数C4,其中,所述C4为大于零的整数;
    所述终端设备根据所述C4和所述时域周期确定相邻两个预留子帧的子帧偏差;
    所述终端设备根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
  7. 根据权利要求2所述的方法,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置,包括:
    所述终端设备根据所述第一资源包括的子帧数目除以所述预留子帧的数 目得到第五除数C5,其中,所述C5为大于零的整数;
    所述终端设备根据所述C5确定相邻两个预留子帧的子帧偏差;
    所述终端设备根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
  8. 根据权利要求6或7所述的方法,其特征在于,当所述同步子帧的数目不为零,且当所述预留子帧的时域位置与第一同步子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一同步子帧的相邻N个子帧的时域位置,所述N为大于或者等于1的整数。
  9. 根据权利要求3至8任一项所述的方法,其特征在于,当所述下行子帧的数目不为零,且当所述预留子帧的时域位置与第一下行子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一下行子帧的相邻M个子帧的时域位置,所述M为大于或者等于1的整数。
  10. 根据权利要求3至9任一项所述的方法,其特征在于,当所述特殊子帧的数目不为零,且当所述预留子帧的时域位置与第一特殊子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一特殊子帧的相邻S个子帧的时域位置,所述S为大于或者等于1的整数。
  11. 根据权利要求2所述的方法,其特征在于,所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源,包括:
    所述终端设备根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述同步子帧在所述第一资源的时域位置信息、所述预留子帧的数目信息、所述预留子帧在所述第一资源的时域位置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源 的时域位置信息中的至少一种信息确定所述第二资源。
  12. 根据权利要求1所述的方法,其特征在于,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息为预配置的信息或从基站接收的信息。
  13. 一种资源配置方法,其特征在于,所述方法包括:
    基站向终端设备发送第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息;其中,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置;其中,所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源。
    其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输,所述第二资源为所述终端设 备进行所述D2D的数据传输的候选子帧的集合。
  14. 根据权利要求13所述的方法,其特征在于,所述位图信息包括位图长度信息;
    如果所述基站向所述终端设备发送所述预留资源的配置信息,且所述预留资源的配置信息包括所述预留子帧的数目信息,则所述预留子帧的数目使所述候选子帧的数目被位图的长度整除。
  15. 一种终端设备,其特征在于,所述终端设备包括:
    获取单元,用于获取第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息,其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输;
    确定单元,用于根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的数目,以及所述预留子帧在所述第一资源的时域位置;
    确定单元,还用于根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源,其中,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合;
    数据传输单元,用于根据所述位图信息和所述第二资源进行D2D的数据传输。
  16. 根据权利要求15所述的终端设备,其特征在于,所述至少一套同步 资源的配置信息包括:同步周期信息和每套同步资源中起始同步子帧的偏移量信息;
    所述第一资源的配置信息为所述第一资源包括的子帧数目信息;
    所述位图信息包括位图长度信息;
    所述确定单元,具体用于根据所述第一资源包括的子帧数目信息、所述TDD系统的配置信息、所述同步周期信息以及所述至少一套同步资源中每套同步资源的起始同步子帧的偏移量信息中的至少一种信息确定所述第一资源中每套同步资源包括的同步子帧的数目、所述同步子帧在所述第一资源的时域位置、所述下行子帧的数目、所述特殊子帧的数目、所述下行子帧在所述第一资源的时域位置以及所述特殊子帧在所述第一资源的时域位置中的至少一种;
    所述确定单元,具体用于根据所述预留子帧的配置信息确定所述预留子帧的数目,或,所述确定单元,具体用于根据第一资源中的同步子帧的数目信息、所述下行子帧的数目信息、所述特殊子帧的数目信息中的至少一种信息、所述第一资源包括的子帧数目信息以及所述位图的长度信息确定所述预留子帧的数目;
    所述确定单元,具体用于根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述预留子帧的数目信息、所述时域周期信息、所述同步子帧在所述第一资源的时域位置信息以及所述预留子帧的配置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述预留子帧在所述第一资源的时域位置。
  17. 根据权利要求16所述的终端设备,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述确定单元,具体用于当所述同步子帧的数目不为零,且当所述每套 同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到第一除数C1和余数Y,其中,所述C1为大于零的整数,所述Y为大于零的整数,且所述Y小于所述每套同步资源包括的同步子帧的数目;确定每个同步周期内包括C1个所述预留子帧,且前Y个同步周期内还各包括一个所述预留子帧;根据所述预留子帧的偏移量确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
  18. 根据权利要求16所述的终端设备,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述确定单元,具体用于当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目小于或者等于所述预留子帧的数目时,根据所述预留子帧的数目除以所述每套同步资源包括的同步子帧的数目得到所述C1和所述Y;根据所述每套同步资源包括的同步子帧的数目除以所述Y得到第二除数C2,其中,所述C2为大于零的整数;确定每个同步周期内包括C1个所述预留子帧,且每C2个所述同步周期内还各包括一个所述预留子帧;根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合,如果一个同步周期内包含多于一个预留子帧,所述多于一个预留子帧的时域位置不重合。
  19. 根据权利要求16所述的终端设备,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述确定单元,具体用于当所述同步子帧的数目不为零,且当所述每套同步资源包括的同步子帧的数目大于所述预留子帧的数目时,根据所述每套同步资源包括的同步子帧的数目除以所述预留子帧的数目得到第三除数C3, 其中,所述C3为大于零的整数;确定每C3个所述同步周期内包括一个所述预留子帧;根据所述预留子帧的偏移量信息确定所述预留子帧在所述第一资源的时域位置;其中,每个同步周期内包括每套同步资源的一个同步子帧,所述预留子帧的时域位置与所述同步子帧的时域位置不重合。
  20. 根据权利要求16所述的终端设备,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述确定单元,具体用于根据所述第一资源包括的子帧数目除以所述预留子帧的数目,再除以所述时域周期得到第四除数C4,其中,所述C4为大于零的整数;根据所述C4和所述时域周期确定相邻两个预留子帧的子帧偏差;根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
  21. 根据权利要求16所述的终端设备,其特征在于,所述预留资源的配置信息包括预留子帧的偏移量信息;
    所述确定单元,具体用于根据所述第一资源包括的子帧数目除以所述预留子帧的数目得到第五除数C5,其中,所述C5为大于零的整数;根据所述C5确定相邻两个预留子帧的子帧偏差;根据所述相邻两个预留子帧的子帧偏差、所述预留子帧的偏移量以及所述预留子帧的数目确定所述预留子帧在所述第一资源的时域位置。
  22. 根据权利要求20或21所述的终端设备,其特征在于,所述确定单元,具体用于当所述同步子帧的数目不为零,且当所述预留子帧的时域位置与第一同步子帧的时域位置重合时,确定所述预留子帧在所述第一同步子帧的相邻N个子帧的时域位置,所述N为大于或者等于1的整数。
  23. 根据权利要求17至22任一项所述的终端设备,其特征在于,所述确定单元,具体用于当所述下行子帧的数目不为零,且当所述预留子帧的时域位置与第一下行子帧的时域位置重合时,所述终端设备确定所述预留子帧在所述第一下行子帧的相邻M个子帧的时域位置,所述M为大于或者等于1 的整数。
  24. 根据权利要求17至23任一项所述的终端设备,其特征在于,所述确定单元,具体用于当所述特殊子帧的数目不为零,且当所述预留子帧的时域位置与第一特殊子帧的时域位置重合时,确定所述预留子帧在所述第一特殊子帧的相邻S个子帧的时域位置,所述S为大于或者等于1的整数。
  25. 根据权利要求16所述的终端设备,其特征在于,所述确定单元,具体还用于根据所述第一资源包括的子帧数目信息、所述第一资源中每套同步资源包括的同步子帧的数目信息、所述同步子帧在所述第一资源的时域位置信息、所述预留子帧的数目信息、所述预留子帧在所述第一资源的时域位置信息、所述下行子帧的数目信息、所述特殊子帧的数目信息、所述下行子帧在所述第一资源的时域位置信息以及所述特殊子帧在所述第一资源的时域位置信息中的至少一种信息确定所述第二资源。
  26. 根据权利要求15所述的终端设备,其特征在于,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息为预配置的信息或从基站接收的信息。
  27. 一种基站,其特征在于,所述基站包括:
    发送单元,用于向终端设备发送第一资源的配置信息、至少一套同步资源的配置信息、时域周期信息、位图信息、预留资源的配置信息以及时分双工TDD系统的配置信息中的至少一种信息;其中,所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源的配置信息、所述时域周期信息、所述位图信息、所述预留资源的配置信息以及所述TDD系统的配置信息中的至少一种信息确定所述第一资源中的预留子帧的 数目,以及所述预留子帧在所述第一资源的时域位置;其中,所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息用于所述终端设备根据所述第一资源的配置信息、所述至少一套同步资源配置信息、所述TDD系统的配置信息、所述预留子帧的数目信息以及所述预留子帧在所述第一资源的时域位置信息中的至少一种信息确定第二资源;
    其中,所述第一资源为至少一个子帧的集合,所述同步资源包括至少一个同步子帧,所述TDD系统包含下行子帧和特殊子帧,所述预留资源包括至少一个预留子帧,所述同步子帧、预留子帧、下行子帧以及特殊子帧不用于所述终端设备进行设备到设备D2D的数据传输,所述第二资源为所述终端设备进行所述D2D的数据传输的候选子帧的集合。
  28. 根据权利要求27所述的基站,其特征在于,所述位图信息包括位图长度信息;
    如果其向所述终端设备发送所述预留资源的配置信息,且所述预留资源的配置信息包括所述预留子帧的数目信息时,所述基站还包括:
    确定单元,用于确定所述预留子帧的数目,以使所述候选子帧的数目被位图的长度整除。
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Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
CN110769401B (zh) * 2019-10-30 2021-06-01 云南宾飞科技有限公司 一种短距离高精度定位方法及定位系统
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103874206A (zh) * 2012-12-13 2014-06-18 中兴通讯股份有限公司 一种资源分配方法及装置
CN104244413A (zh) * 2013-06-14 2014-12-24 中兴通讯股份有限公司 一种d2d通信中的子帧配置指示方法和系统
WO2015156605A1 (ko) * 2014-04-08 2015-10-15 엘지전자 주식회사 무선 통신 시스템에서 장치 대 장치 단말의 데이터 전송 방법 및 장치
CN105515721A (zh) * 2014-09-25 2016-04-20 中兴通讯股份有限公司 比特位数指示方法及装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090046641A1 (en) * 2007-08-13 2009-02-19 Interdigital Patent Holdings, Inc. Long term evolution medium access control procedures
US8537724B2 (en) * 2009-03-17 2013-09-17 Motorola Mobility Llc Relay operation in a wireless communication system
US10383034B2 (en) 2013-08-07 2019-08-13 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving resource allocation information in a wireless communication system
WO2015034310A1 (ko) * 2013-09-05 2015-03-12 엘지전자 주식회사 무선 통신 시스템에서 단말 간 직접 통신을 위한 자원 할당 방법 및 이를 위한 장치
US9629145B2 (en) * 2014-03-20 2017-04-18 Intel Corporation Resource allocation techniques for device-to-device (D2D) communications
US10341064B2 (en) * 2014-05-08 2019-07-02 Nokia Solutions And Networks Oy Improving communication efficiency
JP6458385B2 (ja) * 2014-07-29 2019-01-30 ソニー株式会社 装置及び方法
WO2016129269A2 (en) * 2015-02-12 2016-08-18 Nec Corporation Method and system for device to device communication
WO2016182410A1 (ko) * 2015-05-14 2016-11-17 엘지전자 (주) 무선 통신 시스템에서 d2d 신호 송수신 방법 및 이를 위한 장치
CN108024338B (zh) * 2016-11-03 2022-12-02 中兴通讯股份有限公司 子帧配置方法及装置
CN108811173B (zh) * 2017-05-05 2021-09-03 北京三星通信技术研究有限公司 随机接入方法、基站设备及用户设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103874206A (zh) * 2012-12-13 2014-06-18 中兴通讯股份有限公司 一种资源分配方法及装置
CN104244413A (zh) * 2013-06-14 2014-12-24 中兴通讯股份有限公司 一种d2d通信中的子帧配置指示方法和系统
WO2015156605A1 (ko) * 2014-04-08 2015-10-15 엘지전자 주식회사 무선 통신 시스템에서 장치 대 장치 단말의 데이터 전송 방법 및 장치
CN105515721A (zh) * 2014-09-25 2016-04-20 中兴通讯股份有限公司 比特位数指示方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3515138A4 *

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