WO2017035751A1 - 一种设备到设备d2d业务传输方法、装置及设备 - Google Patents

一种设备到设备d2d业务传输方法、装置及设备 Download PDF

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Publication number
WO2017035751A1
WO2017035751A1 PCT/CN2015/088640 CN2015088640W WO2017035751A1 WO 2017035751 A1 WO2017035751 A1 WO 2017035751A1 CN 2015088640 W CN2015088640 W CN 2015088640W WO 2017035751 A1 WO2017035751 A1 WO 2017035751A1
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WIPO (PCT)
Prior art keywords
cell
carrier frequency
transmission carrier
indication information
transmission
Prior art date
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PCT/CN2015/088640
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English (en)
French (fr)
Inventor
李明超
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华为技术有限公司
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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 CN202011505246.6A priority Critical patent/CN112533180B/zh
Priority to JP2018510099A priority patent/JP6745333B2/ja
Priority to CN201580046316.7A priority patent/CN106664570B/zh
Priority to EP15902558.4A priority patent/EP3316612B3/en
Priority to EP20194523.5A priority patent/EP3800921B1/en
Priority to PCT/CN2015/088640 priority patent/WO2017035751A1/zh
Publication of WO2017035751A1 publication Critical patent/WO2017035751A1/zh
Priority to US15/906,134 priority patent/US10869171B2/en
Priority to US17/112,175 priority patent/US11601788B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a D2D service transmission method, apparatus, and device.
  • the Long Term Evolution (LTE) communication system is currently the mainstream wireless communication technology.
  • the device to device (D2D) technology is used as an important feature in the 3GPP LTE Release 12 and is standardized.
  • the D2D supports direct communication between user equipments (UEs).
  • UEs user equipments
  • the cell serving the UE referred to as a serving cell
  • the serving cell can schedule resources used by the D2D service.
  • the serving cell cannot provide D2D service transmission for the UE.
  • V2V Vehicle to Vehicle
  • the intelligent transportation system is constantly advancing, and vehicles can obtain road condition information or receive information services in time through V2V.
  • the vehicle can communicate with its surrounding vehicles by V2V communication, and its own speed, direction of travel, specific position, and whether or not the emergency brake is applied. By obtaining such information, the driver can better perceive the line of sight. The traffic situation outside, so that the dangerous situation is pre-judged and then avoided.
  • the information transmitted in the V2V communication system is called V2V information.
  • the vehicle transmits V2V information to the surrounding vehicles through broadcast, and the transmission period is generally 1 to 10 Hz, and the size varies between 50 and 1200 bytes. .
  • V2V services can be transmitted through D2D technology.
  • the V2V service dedicated transmission frequency may be related to the current serving cell frequency.
  • an LTE-based car networking solution is: the base station sends configuration information on the dedicated transmission carrier frequency for transmitting the V2V service to the UE through the current serving cell of the UE.
  • the UE transmits the V2V service by using the D2D technology on the dedicated transmission carrier frequency according to the configuration information.
  • the cell serving the UE can schedule the resource used by the D2D service.
  • the V2V dedicated transmission carrier frequency and the LTE control carrier frequency are located at two different frequency points. According to the mechanism of cell selection in the existing D2D service, the LTE control carrier frequency is not supported to allocate resources for the V2V dedicated transmission carrier frequency.
  • the invention provides a D2D service transmission method, device and device for solving the problem that a terminal selects a transmission carrier frequency D2D service data located at different frequency points.
  • a device-to-device D2D service transmission method includes: acquiring, by a UE, a signal quality of a first cell located in a first transmission carrier frequency; and determining, by the UE, that a signal quality of the first cell is greater than a preset threshold, When the UE receives the first indication information sent by the first cell, the UE selects the first cell as a serving cell, where the first indication information is used to indicate that the first cell can control the The UE transmits the carrier frequency transmission device to the device D2D service data, the first transmission carrier frequency and the second transmission carrier frequency are located at different frequency points; and the UE transmits the D2D by using the second transmission carrier frequency Business data.
  • the receiving, by the UE, the first indication information that is sent by the first cell includes: receiving, by the UE, the first cell by using a broadcast First indication information that is sent by the system information; or the UE receives the first indication information that is sent by the first cell by using the radio resource control RRC dedicated control signaling.
  • the method further includes: the UE transmitting, to the first cell, a request message that includes frequency point information of a D2D service transmission carrier frequency of interest, so that the first cell follows the request message, Send the first indication message.
  • the first indication information includes at least one of the foregoing Second, the frequency point information of the frequency point of the transmission carrier frequency.
  • the frequency of the second transmission carrier frequency is included in the request message.
  • the UE is on the second transmission carrier frequency
  • the method further includes: the UE sending, to the first cell, a notification message that includes frequency point information of the second transmission carrier frequency, where the notification message is used to notify the first cell
  • the UE uses the second transmission carrier frequency as a transmission carrier frequency for transmitting a D2D service.
  • the UE is on the second transmission carrier frequency After the D2D service is transmitted, the method further includes: the UE performing frequency sweep on the third transmission carrier frequency to determine the second cell; and when the second cell meets the set condition, the UE reselecting the The second cell serves as a serving cell; and the UE transmits D2D service data on a transmission carrier frequency that can be controlled by the second cell to perform D2D service.
  • the setting condition includes at least one of the following: a signal quality of the second cell is greater than Or equal to the reselection threshold, and the UE is capable of receiving the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell is capable of controlling the UE in the second transmission carrier frequency Transmitting D2D service data; the signal quality of the first cell is smaller than an access threshold, and the signal quality of the second cell is greater than or equal to a reselection threshold, and the UE is capable of receiving the second An indication message, the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a second transmission carrier frequency; the signal quality of the first cell is less than an access threshold, and the The signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, where the third indication message is
  • the first indication information further includes an access priority for transmitting a carrier frequency of the D2D service
  • the setting condition includes at least one of the following: a signal quality of the second cell is greater than or equal to a reselection threshold, and the UE is capable of receiving a third indication message sent by the second cell, and The access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency, and the third indication message is used to indicate that the second cell can control the UE to transmit D2D service data on the third transmission carrier frequency;
  • the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the The access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency, and the third indication message is used to indicate that the second cell can control the UE to transmit D2D service data on the third transmission carrier frequency.
  • the first indication information further includes a cell reselection priority;
  • the setting condition includes the following At least one of the signals: the signal quality of the second cell is greater than or equal to a reselection threshold, and the reselection priority of the second cell is greater than or equal to the first cell, and the UE is capable of receiving the second a second indication message sent by the cell, where the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a second transmission carrier frequency; the signal quality of the second cell is greater than the first a signal quality of a cell, and the reselection priority of the second cell is greater than or equal to the first cell, and the UE is capable of receiving a second indication message sent by the second cell, where the second indication message is used to indicate The second cell is capable of controlling the UE to transmit D2D service data on a second transmission carrier frequency.
  • the second aspect provides a device-to-device D2D service transmission method, including: the first cell sends the first indication information by using the first transmission carrier frequency, where the first indication information is used to indicate that the first cell can be controlled. Transmitting, by the UE, the carrier frequency transmission device to the device D2D service data, so that the UE determines, according to the indication information, that the first cell is used as a serving cell, and the D2D service data is transmitted on the second transmission carrier frequency, The first transmission carrier frequency and the second transmission carrier frequency are at different frequency points.
  • the method further includes The first cell allocates D2D transmission resources on the second transmission carrier frequency to the UE when the first cell determines that the UE transmits D2D service data on the second transmission carrier frequency. .
  • the first cell sends the first indication information by using the first transmission carrier frequency, including: The first cell sends the indication information by using broadcast system information; or the first cell sends the first indication information by using a radio resource control RRC dedicated control signaling.
  • the method further includes: the first cell receiving a request message sent by the UE, where the request message includes frequency point information of a D2D service transmission carrier frequency that is interested in the UE; and the first cell according to the request message , sending the first indication information.
  • the first cell sends the first indication information by using the first transmission carrier frequency
  • the frequency point information of at least one of the second transmission carrier frequencies is included.
  • the frequency of the second transmission carrier frequency in the first indication information sent by the first cell Point information is included in the request message.
  • the method further includes: the first cell receiving the And the notification message of the frequency information of the second transmission carrier frequency, wherein the notification message is used to notify the UE of the first cell to use the second transmission carrier frequency as a transmission carrier frequency for transmitting D2D service data.
  • a device-to-device D2D service transmission apparatus including: an obtaining module, configured to acquire a signal quality of a first cell located in a first transmission carrier frequency; and a receiving module, configured to receive the first cell to send a first indication information, where the selecting module is configured to: when determining that the signal quality of the first cell is greater than a preset threshold, and receiving the first indication information sent by the first cell, selecting the first cell as a serving cell, where the first indication information is used to indicate that the first cell is capable of controlling, by the UE, the second transmission carrier transmission device to the device D2D service data, the first transmission
  • the carrier frequency and the second transmission carrier frequency are located at different frequency points; and an execution module is configured to transmit D2D service data by using the second transmission carrier frequency.
  • the receiving module is configured to receive first indication information that is sent by the first cell by using broadcast system information, or receive the first The cell controls the first indication information sent by the RRC dedicated control signaling by using the radio resource.
  • the device further includes: a first sending module, configured to Sending a request message including frequency point information of the D2D service transmission carrier frequency of interest, so that the first cell sends the first indication information according to the request message.
  • the first indication information that is received by the receiving module The frequency point information of the frequency point of at least one of the second transmission carrier frequencies is included.
  • the frequency of the second transmission carrier frequency selected by the selecting module is included in the In the request message.
  • the second sending module is configured to send to the first cell Sending a notification message including the frequency point information of the second transmission carrier frequency, wherein the notification message is used to notify the first cell UE to use the second transmission carrier frequency as a transmission carrier frequency for transmitting a D2D service.
  • the device further includes: a determining module, configured to Sweeping on the three transmission carriers to determine the second cell; the reselection module is configured to reselect the second cell as the serving cell when the second cell meets the set condition; and the transmission module is used in the Transmitting D2D service data on a transmission carrier frequency that can be controlled by the second cell for performing D2D services.
  • a determining module configured to Sweeping on the three transmission carriers to determine the second cell
  • the reselection module is configured to reselect the second cell as the serving cell when the second cell meets the set condition
  • the transmission module is used in the Transmitting D2D service data on a transmission carrier frequency that can be controlled by the second cell for performing D2D services.
  • the setting condition determined by the reselection module includes at least one of the following: The signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second cell to send.
  • the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a second transmission carrier frequency; the signal quality of the first cell is smaller than an access threshold, and The signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control Transmitting, by the UE, the D2D service data on the second transmission carrier frequency; the signal quality of the first cell is smaller than an access threshold, and the signal quality of the second cell is greater than or equal to a reselection threshold, and the UE can Receiving a third indication message sent by the second cell, where the third indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a third transmission carrier frequency.
  • the first indication information further includes an access priority for transmitting a carrier frequency of the D2D service
  • the setting condition determined by the reselection module includes at least one of the following: a signal quality of the second cell is greater than or equal to a reselection threshold, and the UE is capable of receiving a second cell transmission
  • the third indication message, and the access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency, the third indication message is used to indicate that the second cell is capable of controlling the UE to be in the third transmission Frequency-transmitting D2D service data;
  • the signal quality of the first cell is smaller than an access threshold, and the signal quality of the second cell is greater than or equal to a reselection threshold, and the UE can receive the second cell a third indication message, and the access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency, the third indication message is used to indicate that the second cell is capable of controlling the UE to transmit on the
  • the first indication information further includes a cell reselection priority; where the reselection module determines The setting condition includes at least one of the following: a signal quality of the second cell is greater than or equal to a reselection threshold, and a reselection priority of the second cell is greater than or equal to a first cell, and The UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control the UE to transmit D2D service data on the second transmission carrier frequency; the second cell The signal quality is greater than the signal quality of the first cell, and the reselection priority of the second cell is greater than or equal to the first cell, and the UE can receive the second indication sent by the second cell.
  • the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the second transmission carrier frequency.
  • the fourth aspect provides a device-to-device D2D service transmission apparatus, including: a sending module, configured to send first indication information by using a first transmission carrier frequency, where the first indication information is used to indicate the first cell
  • the UE can control the second transmission carrier transmission device to the device D2D service data, so that the UE determines, according to the indication information, that the first cell is used as a serving cell and transmits the D2D service on the second transmission carrier frequency.
  • Data, the first transmission carrier frequency and the second transmission carrier frequency are at different frequency points.
  • the device further includes: an executing module, when determining that the UE transmits D2D service data on the second transmission carrier frequency And allocating D2D transmission resources on the second transmission carrier frequency to the UE.
  • the sending module is specifically configured to send the indication information by using broadcast system information; or The first indication information is sent by the radio resource control RRC dedicated control signaling.
  • the device further a request message sent by the UE, the request message includes frequency point information of a D2D service transmission carrier frequency that is interested in the UE; and the sending module is configured to send the first indication information according to the request message.
  • the sending module sends the first indication information by using the first transmission carrier frequency
  • the frequency point information of at least one of the second transmission carrier frequencies is included.
  • the sending module the frequency of the second transmission carrier frequency in the first indication information that is sent Point information is included in the request message.
  • the device further includes: a second receiving module, configured to receive, send by the UE a notification message including frequency point information of the second transmission carrier frequency, wherein the notification message is used for Knowing that the UE in the first cell uses the second transmission carrier frequency as a transmission carrier frequency for transmitting D2D service data.
  • a second receiving module configured to receive, send by the UE a notification message including frequency point information of the second transmission carrier frequency, wherein the notification message is used for Knowing that the UE in the first cell uses the second transmission carrier frequency as a transmission carrier frequency for transmitting D2D service data.
  • the fifth aspect provides a device-to-device D2D service transmission device, including: a processor, configured to acquire a signal quality of a first cell located in a first transmission carrier frequency, and an interface, configured to receive, sent by the first cell The first indication information, the processor, configured to: when determining that the signal quality of the first cell is greater than a preset threshold, and receiving the first indication information sent by the first cell, selecting the first cell And serving as the serving cell, where the first indication information is used to indicate that the first cell is capable of controlling, by the UE, the second transmission carrier transmission device to the device D2D service data, the first transmission carrier frequency and the second transmission load The frequency is located at different frequency points; the D2D service data is transmitted through the second transmission carrier frequency.
  • the interface is specifically configured to receive first indication information that is sent by the first cell by using broadcast system information, or receive the first cell
  • the first indication information sent by the RRC dedicated control signaling is controlled by the radio resource.
  • the processor is further configured to send to the first cell by using the interface And a request message that includes frequency point information of the D2D service transmission carrier frequency of interest, so that the first cell sends the first indication information according to the request message.
  • the first indication information received by the interface is Frequency point information including at least one frequency of the second transmission carrier frequency.
  • the frequency of the second transmission carrier frequency selected by the processor is included in the In the request message.
  • the interface is further used to the first cell Sending a notification message including the frequency point information of the second transmission carrier frequency, wherein the notification message is used to notify the first cell UE to use the second transmission carrier frequency as a transmission carrier frequency for transmitting a D2D service.
  • the processor is further configured to perform the third transmission Frequency sweeping, determining a second cell; for reselecting the second cell as a serving cell when the second cell meets a set condition; and for performing control in the second cell
  • the D2D service data is transmitted on the transmission carrier frequency of the D2D service.
  • the setting condition determined by the processor includes at least one of the following:
  • the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control the UE.
  • the second carrier transmits the D2D service data; the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second cell.
  • the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a second transmission carrier frequency; the signal quality of the first cell is less than an access threshold. And the signal quality of the second cell is greater than or equal to a reselection threshold, and the UE is capable of receiving a third indication message sent by the second cell, where the third indication message is used to indicate that the second cell can Control office The UE transmits D2D service data on the third transmission carrier frequency.
  • the first indication information further includes an access priority for transmitting a carrier frequency of the D2D service
  • the setting condition determined by the processor includes at least one of the following: a signal quality of the second cell is greater than or equal to a reselection threshold, and the UE is capable of receiving a second cell transmission a third indication message, and the access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency, where the third indication message is used to indicate that the second cell is capable of controlling the UE in the third transmission carrier frequency Transmitting D2D service data; the signal quality of the first cell is smaller than an access threshold, and the signal quality of the second cell is greater than or equal to a reselection threshold, and the UE is capable of receiving the third The indication message, and the access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency, the third indication message is used to indicate that the second cell can control the UE to transmit D2D on the third transmission carrier frequency
  • the first indication information further includes a cell reselection priority;
  • the setting condition includes at least one of the following: a signal quality of the second cell is greater than or equal to a reselection threshold, and a reselection priority of the second cell is greater than or equal to a first cell, and
  • the UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control the UE to transmit D2D service data on the second transmission carrier frequency;
  • the signal quality is greater than the signal quality of the first cell, and the reselection priority of the second cell is greater than or equal to the first cell, and the UE can receive the second indication message sent by the second cell, where the The second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the second transmission carrier frequency.
  • the sixth aspect provides a device-to-device D2D service transmission device, including a processor and an interface, configured to send, by using an interface, first indication information according to a first transmission carrier frequency, where the first indication
  • the information is used to indicate that the first cell is capable of controlling, by the UE, the second transmission carrier transmission device to the device D2D service data, so that the UE determines, according to the indication information, that the first cell is used as a serving cell and
  • the second transmission carrier frequency transmits the transmission D2D service data, and the first transmission carrier frequency and the second transmission carrier frequency are located at different frequency points.
  • the processor is further configured to: when determining that the UE transmits D2D service data on the second transmission carrier frequency, The UE allocates D2D transmission resources on the second transmission carrier frequency.
  • the interface is specifically configured to send the indication information by using broadcast system information; or The radio resource control RRC dedicated control signaling sends the first indication information.
  • the interface is further configured to receive a request message sent by the UE, where
  • the request message includes frequency point information of a D2D service transmission carrier frequency that is interested in the UE; and the first indication information is sent according to the request message.
  • the interface is specifically configured to send, by using the first transmission carrier frequency, frequency point information that includes at least one of the second transmission carrier frequencies in the first indication information.
  • the interface the frequency of the second transmission carrier frequency in the first indication information that is sent Information is included in the request message.
  • the interface is further configured to receive, by the UE, the second And a notification message for transmitting the frequency point information of the carrier frequency, wherein the notification message is used to notify the first cell that the UE uses the second transmission carrier frequency as a transmission carrier frequency for transmitting D2D service data.
  • the UE obtains the signal quality of the first cell located in the first transmission carrier frequency by using the foregoing technical solution.
  • the UE determines that the signal quality of the first cell is greater than the preset threshold, and the UE receives the first indication information sent by the first cell.
  • the UE selects the first cell as the serving cell, and the UE transmits the D2D service data by using the second transmission carrier frequency, and by receiving the first indication information, the UE may select the transmission carrier frequency transmission D2D service located at the different frequency point to solve the problem.
  • the terminal cannot select the problem that the transmission carrier frequency of the D2D service data is transmitted at different frequency points.
  • Figure 1 is a schematic diagram of V2V communication
  • FIG. 2a is a flowchart of a D2D service transmission method according to Embodiment 1 of the present invention.
  • FIG. 2b is a flowchart of a D2D service transmission method according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a D2D service transmission apparatus according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a D2D service transmission device according to Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of a D2D service transmission method according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic structural diagram of a D2D service transmission apparatus according to Embodiment 3 of the present invention.
  • the terminal cannot select the transmission carrier frequency transmission D2D industry located at different frequency points.
  • the UE obtains the signal quality of the first cell located in the first transmission carrier frequency; when the UE determines that the signal quality of the first cell is greater than the preset threshold, and the UE receives the first
  • the UE selects the first cell as the serving cell, and the UE transmits the D2D service data by using the second transmission carrier frequency, and by receiving the first indication information, the UE may select the transmission at the different frequency point.
  • the carrier frequency transmits the D2D service, and solves the problem that the terminal cannot select the transmission carrier frequency of the D2D service data at different frequency points.
  • the cell and the transmission carrier frequency are differentiated, respectively being the first cell and the second cell, and the first transmission carrier frequency, the second transmission carrier frequency, and the third transmission load. frequency.
  • the user terminal (English: user equipment, abbreviation: UE) is distinguished, which is a first UE and a second UE, respectively.
  • the UE acquires the signal quality of the first cell located in the first transmission carrier frequency.
  • the UE determines that the signal quality of the first cell is greater than the preset threshold, and the UE receives the first indication information sent by the first cell, the UE selects the first cell as the serving cell, and the UE transmits the D2D service data by using the second transmission carrier frequency. .
  • the first indication information is used to indicate that the first cell can control the UE to transmit the D2D service data on the second transmission carrier frequency, and the first transmission carrier frequency and the second transmission carrier frequency are located at different frequency points.
  • Embodiment 1 of the present invention provides a D2D service transmission method, as shown in FIG. 2a, and the specific processing flow is as follows:
  • Step 21 The UE acquires a signal quality of the first cell located in the first transmission carrier frequency.
  • the UE obtains the signal quality of the first cell located at the first transmission carrier frequency by measuring the signal quality of the cell.
  • Step 22 The first cell sends the first indication information.
  • step 21 There is no fixed timing relationship between the foregoing steps 22 and 21, and the first cell may periodically or periodically send the first indication information, or may send the first indication information at any time.
  • the execution sequence of step 21 is set after step 21.
  • the sending manner of the first indication information sent by the first cell may include the following two methods:
  • the first mode the first cell sends the first indication information by using the broadcast system information.
  • the second mode the first cell sends the first indication information by using RRC dedicated control signaling.
  • the first indication information is used to indicate that the first cell can control the UE to transmit D2D service data on the second transmission carrier frequency, where the first transmission carrier frequency and the second transmission carrier frequency are located at different frequency points.
  • the method further includes:
  • the UE sends a request message including the frequency point information of the D2D service transmission carrier frequency of interest to the first cell, so that the first cell sends the first indication information according to the received request message.
  • the frequency point information of the second transmission carrier frequency in the first indication information sent by the first cell is included in the request message.
  • Step 23 The UE determines that the signal quality of the first cell is greater than the preset threshold, and when the UE receives the indication information sent by the first cell, the UE selects the first cell as the serving cell.
  • the UE may receive the first indication information sent by the first cell in the following two manners:
  • the first mode the UE receives the first indication information that is sent by the first cell by using the broadcast system information.
  • the second mode the UE receives the first indication information that is sent by the first cell by using the RRC dedicated control signaling.
  • the UE selects the first cell as a serving cell, and the serving cell is a cell capable of providing D2D services.
  • the frequency point of the at least one second transmission carrier frequency is included.
  • Step 24 The UE transmits D2D service data by using the second transmission carrier frequency.
  • the UE receives the indication information sent by the first cell by using the first transmission carrier frequency, and determines that the first cell supports the V2V service transmission on the second transmission carrier frequency, and the UE measures the signal quality of the first cell, according to the measurement. As a result, determining whether the signal quality of the first cell is greater than or equal to a preset If the result of the determination is yes, the UE selects the first cell to access and camps, that is, the UE selects the first cell as the serving cell, and uses the second transmission carrier frequency indicated by the indication information as the transmission carrier frequency of the V2V service. .
  • the transmission carrier frequency of the V2V service and the control carrier frequency of the LTE are located at two different frequency points.
  • the LTE control carrier frequency is not supported by the V2V dedicated transmission carrier frequency allocation resource.
  • the first transmission carrier frequency is first.
  • the cell sends indication information.
  • the UE selects the first cell as the serving cell and transmits the V2V service on the second transmission carrier frequency, according to the received indication information, when determining that the signal quality of the first cell is greater than the preset threshold.
  • the method may further include:
  • the UE sets the D2D service coverage identifier to a valid value.
  • the UE sets its own D2D service coverage identifier as in-coverage.
  • the in-coverage can be set to have a higher synchronization source priority.
  • the UE After the UE uses the first cell as the serving cell, the UE does not always be in a static state. Therefore, as the UE moves, the UE may detect a second cell with a higher signal quality than the first cell, or the UE may wish to pass other transmissions.
  • the carrier frequency transmits the D2D service. At this time, the UE needs to perform cell reselection.
  • the method may further include:
  • the UE reselects to access the second cell.
  • the UE performs frequency sweep on the third transmission carrier frequency to determine the second cell.
  • the UE reselects the second cell as the serving cell, and the UE can control the second cell.
  • the D2D service data is transmitted on the transmission carrier frequency of the D2D service.
  • the setting conditions include at least one of the following:
  • the first type the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control the UE in the second Transmit carrier frequency to transmit D2D service data.
  • the second type the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second indication message sent by the second cell, and the second indication message And configured to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the second transmission carrier frequency.
  • the third type the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the third indication message And configured to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the third transmission carrier frequency.
  • the first indication information further includes an access priority of the transmission carrier frequency for transmitting the D2D service.
  • the setting conditions include the following methods:
  • the first type the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the access priority of the third transmission carrier is greater than the second transmission
  • the third indicator message is used to indicate that the second cell can control the UE to transmit D2D service data on the third transmission carrier frequency.
  • the second type the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the third transmission
  • the access priority of the carrier frequency is greater than the second transmission carrier frequency, and the third indication message is used to indicate that the second cell can control the UE to transmit the D2D service data on the third transmission carrier frequency.
  • the first indication information further includes a cell reselection priority
  • the setting conditions include:
  • the first mode the signal quality of the second cell is greater than or equal to the reselection threshold, and the reselection priority of the second cell is greater than or equal to the first cell, and the UE can receive the second indication message sent by the second cell.
  • the second indication message is used to indicate that the second cell can control the UE to transmit D2D service data on the second transmission carrier frequency.
  • the second mode the signal quality of the second cell is greater than the signal quality of the first cell, and the reselection priority of the second cell is greater than or equal to the first cell, and the UE can receive the second indication message sent by the second cell,
  • the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the second transmission carrier frequency.
  • the UE acquires the first small location of the first transmission carrier frequency.
  • the signal quality of the area when the UE determines that the signal quality of the first cell is greater than the preset threshold, and the UE receives the first indication information sent by the first cell, the UE selects the first cell as the serving cell, and the UE passes the
  • the second transmission carrier transmits D2D service data, and by receiving the first indication information, the UE may select the transmission carrier frequency D2D service located at the different frequency point, and solve the problem that the terminal cannot select the transmission carrier frequency D2D service data located at different frequency points. problem.
  • the second embodiment of the present invention provides a D2D service transmission method, as shown in FIG. 2b, and the specific processing flow is as follows:
  • Step 31 The UE acquires a signal quality of the first cell located at the first transmission carrier frequency.
  • the UE obtains the signal quality of the first cell located at the first transmission carrier frequency by measuring the signal quality of the cell.
  • Step 32 When the UE determines that the signal quality of the first cell is greater than the preset threshold, and the UE receives the first indication information sent by the first cell, the UE selects the first cell as the serving cell.
  • the first indication information is used to indicate that the first cell can control the UE to transmit D2D service data on the second transmission carrier frequency, where the first transmission carrier frequency and the second transmission carrier frequency are located at different frequency points;
  • the UE may receive the first indication information sent by the first cell in the following two manners:
  • the first mode the UE receives the first indication information that is sent by the first cell by using the broadcast system information.
  • the second mode the UE receives the first indication information that is sent by the first cell by using the RRC dedicated control signaling.
  • Step 33 The UE transmits D2D service data by using the second transmission carrier frequency.
  • the UE receives the indication information sent by the first cell by using the first transmission carrier frequency, and determines that the first cell supports the V2V service transmission on the second transmission carrier frequency, and the UE measures the signal quality of the first cell, according to the measurement. As a result, it is determined whether the signal quality of the first cell is greater than or equal to a preset threshold. If the determination result is yes, the UE selects the first cell to access and camp, that is, the UE selects the first cell as the serving cell, and indicates The second transmission carrier frequency indicated by the information is used as a transmission carrier frequency for carrying the V2V service.
  • the transmission carrier frequency of the V2V service and the control carrier frequency of the LTE are located at two different frequency points.
  • the LTE control carrier frequency is not supported by the V2V dedicated transmission carrier frequency allocation resource.
  • the first transmission carrier frequency is first.
  • the cell sends indication information.
  • the UE selects the first cell as the serving cell and transmits the V2V service on the second transmission carrier frequency, according to the received indication information, when determining that the signal quality of the first cell is greater than the preset threshold.
  • the method before the receiving, by the UE, the first indication information sent by the first cell, the method further includes:
  • the UE sends a request message including the frequency point information of the D2D service transmission carrier frequency of interest to the first cell, so that the first cell sends the first indication information according to the request message.
  • the first indication information includes frequency point information of at least one frequency point of the second transmission carrier frequency.
  • the frequency point information of the second transmission carrier frequency in the first indication information sent by the first cell is included in the request message.
  • the method further includes:
  • the UE sends a notification message including frequency point information of the second transmission carrier frequency to the first cell, where the notification message is used to notify the first cell that the UE uses the second transmission carrier frequency as the transmission carrier frequency of the transmission D2D service.
  • the UE After the UE uses the first cell as the serving cell, the UE does not always be in a static state. Therefore, as the UE moves, the UE may detect a second cell with a higher signal quality than the first cell, or the UE may wish to pass other transmissions.
  • the carrier frequency transmits the D2D service. At this time, the UE needs to perform cell reselection.
  • the method may further include:
  • the UE reselects to access the second cell.
  • the UE performs frequency sweep on the third transmission carrier frequency to determine the second cell.
  • the UE reselects the second cell as the serving cell, and the UE can control the second cell.
  • the D2D service data is transmitted on the transmission carrier frequency of the D2D service.
  • the setting conditions include at least one of the following:
  • the first type the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control the UE in the second Transmit carrier frequency to transmit D2D service data.
  • the second type the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second indication message sent by the second cell, and the second indication message And configured to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the second transmission carrier frequency.
  • the third type the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the third indication message And configured to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the third transmission carrier frequency.
  • the first indication information further includes an access priority of the transmission carrier frequency for transmitting the D2D service.
  • the setting conditions include the following methods:
  • the first type the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the access priority of the third transmission carrier is greater than the second transmission
  • the third indicator message is used to indicate that the second cell can control the UE to transmit D2D service data on the third transmission carrier frequency.
  • the second type the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the third transmission
  • the access priority of the carrier frequency is greater than the second transmission carrier frequency, and the third indication message is used to indicate that the second cell can control the UE to transmit the D2D service data on the third transmission carrier frequency.
  • the first indication information further includes a cell reselection priority
  • the setting conditions include:
  • the first mode the signal quality of the second cell is greater than or equal to the reselection threshold, and the reselection priority of the second cell is greater than or equal to the first cell, and the UE can receive the second indication message sent by the second cell.
  • the second indication message is used to indicate that the second cell can control the UE to transmit D2D service data on the second transmission carrier frequency.
  • the second mode the signal quality of the second cell is greater than the signal quality of the first cell, and the second small The reselection priority of the area is greater than or equal to the first cell, and the UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control the UE to transmit on the second transmission carrier frequency.
  • D2D business data D2D business data.
  • the second embodiment of the present invention further provides a D2D service transmission device, as shown in FIG. 3, including:
  • the obtaining module 301 is configured to obtain a signal quality of the first cell located in the first transmission carrier frequency.
  • the receiving module 302 is configured to receive first indication information sent by the first cell.
  • the selecting module 303 is configured to: when determining that the signal quality of the first cell is greater than a preset threshold, and receiving the first indication information sent by the first cell, selecting the first cell as a serving cell, where the An indication information is used to indicate that the first cell is capable of controlling, by the UE, the second transmission carrier transmission device to the device D2D service data, where the first transmission carrier frequency and the second transmission carrier frequency are located at different frequency points.
  • the executing module 304 is configured to transmit D2D service data by using the second transmission carrier frequency.
  • the receiving module 302 is specifically configured to receive first indication information that is sent by the first cell by using broadcast system information, or receive first indication information that is sent by the first cell by using radio resource control RRC dedicated control signaling. .
  • the device further includes: a first sending module, configured to send, to the first cell, a request message that includes frequency point information of a D2D service transmission carrier frequency of interest, so that the first cell follows the request message, Send the first indication message.
  • a first sending module configured to send, to the first cell, a request message that includes frequency point information of a D2D service transmission carrier frequency of interest, so that the first cell follows the request message, Send the first indication message.
  • the first indication information received by the receiving module includes frequency point information of at least one frequency point of the second transmission carrier frequency.
  • a frequency point of the second transmission carrier frequency selected by the selection module is included in the request message.
  • the device further includes: a second sending module, configured to send, to the first cell, a notification message that includes frequency point information of the second transmission carrier frequency, where the notification message is used to notify the first cell UE
  • the second transmission carrier frequency is used as a transmission carrier frequency for transmitting a D2D service.
  • the device also includes:
  • a determining module configured to perform frequency sweeping on the third transmission carrier frequency, to determine a second cell
  • a reselection module configured to reselect the second cell as a serving cell when the second cell meets the set condition
  • a transmission module configured to transmit D2D service data on a transmission carrier frequency that can be controlled by the second cell to perform D2D services.
  • the setting condition determined by the reselection module includes at least one of the following: a signal quality of the second cell is greater than or equal to a reselection threshold, and the UE can receive the second cell to send.
  • a second indication message the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a second transmission carrier frequency; the signal quality of the first cell is smaller than an access threshold, and The signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control Transmitting, by the UE, the D2D service data on the second transmission carrier frequency; the signal quality of the first cell is smaller than an access threshold, and the signal quality of the second cell is greater than or equal to a reselection threshold, and the UE can Receiving a third indication message sent by the second cell, where the third indication message is used to indicate that the second cell
  • the first indication information further includes an access priority for transmitting a transmission carrier frequency of the D2D service; and the setting condition determined by the reselection module includes at least one of the following: The signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency.
  • the third indication message is used to indicate that the second cell can control the UE to transmit D2D service data on a third transmission carrier frequency; the signal quality of the first cell is smaller than an access threshold, and the second cell The signal quality is greater than or equal to the reselection threshold, and the UE is capable of receiving the third indication message sent by the second cell, and the access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency.
  • the third indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a third transmission carrier frequency.
  • the first indication information further includes a cell reselection priority;
  • the setting condition determined by the reselection module includes at least one of the following: a signal quality of the second cell is greater than or equal to a weight Selecting a threshold, and the reselection priority of the second cell is greater than or equal to the first cell, and the The UE can receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can control the UE to transmit D2D service data on the second transmission carrier frequency;
  • the signal quality is greater than the signal quality of the first cell, and the reselection priority of the second cell is greater than or equal to the first cell, and the UE can receive the second indication message sent by the second cell, where the The second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the second transmission carrier frequency.
  • the second embodiment of the present invention further provides a D2D service transmission device, as shown in FIG. 4, including a processor, an interface, and a bus.
  • the processor and the interface are connected through a bus:
  • the processor 401 is configured to acquire a signal quality of the first cell located in the first transmission carrier frequency.
  • the processor can be a central processing unit (English: central processing unit, abbreviated: CPU), or a combination of a CPU and a hardware chip.
  • the signal processor can also be a network processor (English: network processor, abbreviation: NP). Either a combination of CPU and NP, or a combination of NP and hardware chips.
  • the above hardware chip may be a combination of one or more of the following: an application-specific integrated circuit (ASIC: ASIC), a field-programmable gate array (English: field-programmable gate array, abbreviation: FPGA) , Complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD).
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • CPLD complex programmable logic device
  • the interface 402 is configured to receive first indication information sent by the first cell.
  • the interface may be one or more of the following: a network interface controller (English: network interface controller, abbreviation: NIC), such as an Ethernet NIC, which can provide a copper wire and/or a fiber interface;
  • a network interface controller (English: network interface controller, abbreviation: NIC), such as an Ethernet NIC, which can provide a copper wire and/or a fiber interface
  • the NIC of the wireless interface such as a wireless local area network (English: wireless local area network, abbreviated as WLAN) NIC.
  • WLAN wireless local area network
  • the processor 401 is configured to: when determining that the signal quality of the first cell is greater than a preset threshold, and receiving the first indication information sent by the first cell, selecting the first cell as a serving cell, where The first indication information is used to indicate that the first cell is capable of controlling, by the UE, the second transmission carrier transmission device to the device D2D service data, where the first transmission carrier frequency and the second transmission carrier frequency are located at different frequency points. Transmitting D2D service data through the second transmission carrier frequency.
  • the foregoing interface is specifically configured to receive first indication information that is sent by the first cell by using broadcast system information, or receive first indication information that is sent by the first cell by using radio resource control RRC dedicated control signaling.
  • the foregoing processor is further configured to send, by using the interface, a request message that includes frequency point information of a D2D service transmission carrier frequency of interest to the first cell, so that the first cell follows the request message. , sending the first indication information.
  • the first indication information received by the interface includes frequency point information of at least one frequency point of the second transmission carrier frequency.
  • a frequency point of the second transmission carrier frequency selected by the processor is included in the request message.
  • the foregoing interface is further configured to send, to the first cell, a notification message that includes frequency point information of the second transmission carrier frequency, where the notification message is used to notify the first cell UE to
  • the second transmission carrier frequency is used as the transmission carrier frequency for transmitting the D2D service.
  • the processor is further configured to perform frequency sweep on the third transmission carrier frequency to determine a second cell, and to reselect the second cell as a serving cell when the second cell meets the set condition. And transmitting D2D service data on a transmission carrier frequency for performing D2D service that can be controlled by the second cell.
  • the setting condition determined by the foregoing processor includes at least one of the following: a signal quality of the second cell is greater than or equal to a reselection threshold, and the UE is capable of receiving a second cell a second indication message, the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a second transmission carrier frequency; the signal quality of the first cell is smaller than an access threshold, and the The signal quality of the second cell is greater than or equal to the reselection threshold, and the UE is capable of receiving the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell is capable of controlling the The UE transmits the D2D service data on the second transmission carrier frequency; the signal quality of the first cell is smaller than the access threshold, and the signal quality of the second cell is greater than or equal to the reselection threshold, and the UE can receive And a third indication message sent by the second cell, where the third indication message is used to indicate that the second cell is
  • the foregoing first indication information further includes an access priority for transmitting a transmission carrier frequency of the D2D service; and the setting condition determined by the processor includes at least one of the following: the second The signal quality of the cell is greater than or equal to the reselection threshold, and the UE can receive the third indication message sent by the second cell, and the access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency.
  • the third indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on a third transmission carrier frequency; the signal quality of the first cell is smaller than an access threshold, and the second cell is The signal quality is greater than or equal to the reselection threshold, and the UE is capable of receiving the third indication message sent by the second cell, and the access priority of the third transmission carrier frequency is greater than the second transmission carrier frequency, The third indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the third transmission carrier frequency.
  • the first indication information further includes a cell reselection priority;
  • the setting condition determined by the processor includes at least one of the following: a signal quality of the second cell is greater than or equal to a reselection threshold, And the reselection priority of the second cell is greater than or equal to the first cell, and the UE is configured to receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell can Controlling the UE to transmit D2D service data on the second transmission carrier frequency; the signal quality of the second cell is greater than the signal quality of the first cell, and the reselection priority of the second cell is greater than or equal to the first cell And the UE is configured to receive the second indication message sent by the second cell, where the second indication message is used to indicate that the second cell is capable of controlling the UE to transmit D2D service data on the second transmission carrier frequency.
  • a third embodiment of the present invention provides a D2D service transmission method, as shown in FIG. 5, and the specific processing flow is as follows:
  • Step 41 The first cell determines the first indication information.
  • Step 42 The first cell sends the first indication information by using the first transmission carrier frequency.
  • the first indication information is used to indicate that the first cell can control the UE to transmit the carrier DDT service data to the device in the second transmission, so that the UE determines, according to the indication information, that the first cell is used as the serving cell and is transmitted on the second transmission carrier frequency. Transmit D2D service data.
  • the sending manner of the first indication information sent by the first cell may include the following two methods:
  • the first mode the first cell sends the first indication information by using the broadcast system information.
  • the second mode the first cell sends the first indication information by using RRC dedicated control signaling.
  • the first indication information is used to indicate that the first cell can control the UE to transmit D2D service data on the second transmission carrier frequency, where the first transmission carrier frequency and the second transmission carrier frequency are located at different frequency points.
  • the first transmission carrier frequency and the second transmission carrier frequency are at different frequency points.
  • the above methods also include:
  • the first cell When the first cell determines that the UE transmits D2D service data on the second transmission carrier frequency, the first cell allocates the D2D transmission resource on the second transmission carrier frequency to the UE.
  • the first cell sends the first indication information by using the first transmission carrier frequency, where the first cell sends the indication information by using the broadcast system information; or the first cell sends the first indication information by using the radio resource control RRC dedicated control signaling.
  • the method further includes:
  • the first cell receives the request message sent by the UE, and the first cell sends the first indication information according to the request message.
  • the request message includes frequency point information of the D2D service transmission carrier frequency that the UE is interested in.
  • the first cell sends, by using the first transmission carrier frequency, frequency point information that includes at least one second transmission carrier frequency in the first indication information.
  • the frequency point information of the second transmission carrier frequency in the first indication information sent by the first cell is included in the request message.
  • the method also includes:
  • the first cell receives a notification message that is sent by the UE and includes frequency information of the second transmission carrier frequency, where the notification message is used to notify the first cell that the UE uses the second transmission carrier frequency as The transmission carrier frequency of the D2D service data is transmitted.
  • the third embodiment of the present invention further provides a D2D service transmission device, as shown in FIG. 5, including:
  • the determining module 501 is configured to determine the first indication information.
  • the sending module 502 is configured to send the first indication information by using the first transmission carrier frequency, where the first indication information is used to indicate that the first cell is capable of controlling the UE to transmit the carrier frequency information to the device D2D service data. So that the UE determines, according to the indication information, that the first cell is used as a serving cell and transmits D2D service data on the second transmission carrier frequency, the first transmission carrier frequency and the second transmission carrier frequency. Located at different frequency points.
  • the device also includes:
  • an execution module configured to allocate, by the UE, D2D transmission resources on the second transmission carrier frequency when determining that the UE transmits D2D service data on the second transmission carrier frequency.
  • the sending module is specifically configured to send the indication information by using broadcast system information, or send the first indication information by using a radio resource control RRC dedicated control signaling.
  • the device further includes: a first receiving module, configured to receive a request message sent by the UE, where the request message includes frequency point information of a D2D service transmission carrier frequency that is interested in the UE; and the sending module is specifically configured to: Sending the first indication information according to the request message.
  • the sending module sends, by using the first transmission carrier frequency, frequency point information including at least one second transmission carrier frequency in the first indication information.
  • the frequency information of the second transmission carrier frequency in the first indication information that is sent by the sending module is included in the request message.
  • the device further includes: a second receiving module, configured to receive, by the UE, a notification message that includes frequency point information of the second transmission carrier frequency, where the notification message is used to notify the first cell that the UE
  • the second transmission carrier frequency is used as a transmission carrier frequency for transmitting D2D service data.
  • the third embodiment of the present invention further provides a D2D service transmission device, which is shown in FIG. 4, which includes a processor, an interface, and a connection between a processor and an interface through a bus:
  • the processor is configured to send, by using an interface, first indication information according to a first transmission carrier frequency, where the first indication information is used to indicate that the first cell is capable of controlling a UE to transmit a carrier transmission device to a second transmission carrier D2D service data, so that the UE determines, according to the indication information, that the first cell is used as a serving cell and transmits D2D service data on the second transmission carrier frequency, the first transmission carrier frequency and the first
  • the two transmission carriers are at different frequencies.
  • the processor is further configured to allocate the D2D transmission resource on the second transmission carrier frequency to the UE when determining that the UE transmits D2D service data on the second transmission carrier frequency.
  • the interface is specifically configured to send the indication information by using broadcast system information, or send the first indication information by using a radio resource control RRC dedicated control signaling.
  • the interface may be further configured to receive a request message sent by the UE, where the request message includes frequency point information of a D2D service transmission carrier frequency that is interested in the UE, and send the first indication information according to the request message.
  • the interface is configured to send, by using the first transmission carrier frequency, frequency point information that includes at least one of the second transmission carrier frequencies in the first indication information.
  • the interface the frequency information of the second transmission carrier frequency in the first indication information that is sent is included in the request message.
  • the interface is further configured to receive, by the UE, a notification message that includes the frequency information of the second transmission carrier frequency, where the notification message is used to notify the first cell that the UE uses the second transmission carrier frequency as The transmission carrier frequency of the D2D service data is transmitted.
  • embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, read-only optical disks, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, read-only optical disks, optical storage, etc.
  • These computer program instructions can also be stored in a bootable computer or other programmable data processing device.
  • a computer readable memory that operates in a particular manner, causing instructions stored in the computer readable memory to produce an article of manufacture comprising an instruction device implemented in one or more flows and/or block diagrams of the flowchart The function specified in the box or in multiple boxes.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

本发明公开了一种D2D业务传输方法、装置及设备，包括：UE获取位于第一传输载频的第一小区的信号质量；当所述UE确定出所述第一小区的信号质量大于预设门限，且所述UE接收到所述第一小区发送的第一指示信息时，所述UE选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制所述UE在第二传输载频传输设备到设备D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点；所述UE通过所述第二传输载频传输D2D业务数据，解决终端不能选择位于不同的频点的传输载频传输D2D业务数据的问题。

Description

一种设备到设备D2D业务传输方法、装置及设备 技术领域
本发明涉及通信技术领域，尤其是涉及一种D2D业务传输方法、装置及设备。
背景技术
长期演进(Long Term Evolution，LTE)通信系统是当前较为主流的无线通信技术。其中设备到设备(Device to Device，D2D)技术在3GPP LTE Release 12中被作为重要特性且进行了标准化工作，D2D支持用户终端(User Equipment，UE)之间进行直连通信。通常情况下，当UE选择服务的小区所在的传输载频与D2D业务的传输载频位于相同频点时，为该UE提供服务的小区(称之为服务小区)才可以调度D2D业务使用的资源。相应地，当UE选择服务的小区所在的传输载频与D2D业务的传输载频位于不相同频点时，服务小区无法为该UE提供D2D业务传输。
其中，UE选择服务的小区所在的传输载频与D2D业务的传输载频位于不相同频点时进行D2D业务传输的一种应用场景为车辆与车辆之间通信(Vehicle to Vehicle，V2V)。
随着社会的不断发展，智能交通系统不断在推进，车辆可以通过V2V来及时获取路况信息或接收信息服务。如图1所示，车辆通过V2V通信，可以将自身的车速、行驶方向、具体位置、是否踩了紧急刹车等信息广播给周围车辆，通过获取该类信息驾驶员可以更好的感知视距之外的交通状况，从而对危险状况作出提前预判进而作出避让。V2V通信系统中传输的信息称之为为V2V信息，在V2V通信系统中车辆通过广播的方式向周围车辆发送V2V信息，发送周期一般为1～10Hz，大小约在50～1200字节之间变化。
由于V2V通信场景也属于用户终端之间直连通信，因此可以通过D2D技术来传输V2V业务。但是，V2V业务专用传输频点可能与当前服务小区的频 点不同，该种情况下，一种基于LTE的车联网解决方案为：基站通过UE的当前服务小区向该UE发送传输V2V业务的专用传输载频上的配置信息。UE根据该配置信息在专用传输载频上使用D2D技术发送V2V业务。
通常情况下，当UE选择的服务小区所在的传输载频与D2D业务的传输载频位于相同频点时，为该UE提供服务的小区才可以调度D2D业务使用的资源。但是在基于LTE的V2V通信场景中，V2V专用传输载频和LTE的控制载频位于两个不同频点。按照现有D2D业务中小区选择的机制，并不支持LTE控制载频为V2V专用传输载频分配资源。
发明内容
本发明提供了一种D2D业务传输方法、装置及设备，用于解决终端选择位于不同的频点的传输载频传输D2D业务数据的问题。
第一方面一种设备到设备D2D业务传输方法，包括：UE获取位于第一传输载频的第一小区的信号质量；当所述UE确定出所述第一小区的信号质量大于预设门限，且所述UE接收到所述第一小区发送的第一指示信息时，所述UE选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制所述UE在第二传输载频传输设备到设备D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点；所述UE通过所述第二传输载频传输D2D业务数据。
结合第一方面，在第一方面的第一种可能的实现方式中，所述UE接收到所述第一小区发送的第一指示信息，包括：所述UE接收到所述第一小区通过广播系统信息发送的第一指示信息；或所述UE接收到所述第一小区通过无线资源控制RRC专用控制信令发送的第一指示信息。
结合第一方面或第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，在所述UE接收到所述第一小区发送的第一指示信息之前，所述方法还包括：所述UE向所述第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使所述第一小区按照所述请求消息， 发送第一指示信息。
结合第一方面至第一方面的第二种可能的实现方式中的任一一种，在第一方面的第三种可能的实现方式中，所述第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
结合第一方面的第二种或第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述第二传输载频的频点包含在所述请求消息中。
结合第一方面至第一方面的第四种可能的实现方式中的任一一种，在第一方面的第五种可能的实现方式中，在所述UE在所述第二传输载频上传输D2D业务之后，所述方法还包括：所述UE向所述第一小区发送包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务的传输载频。
结合第一方面至第一方面的第三种可能的实现方式中的任一一种，在第一方面的第六种可能的实现方式中，在所述UE在所述第二传输载频上传输D2D业务之后，所述方法还包括：所述UE在第三传输载频上进行扫频，确定第二小区；在所述第二小区符合设定条件时，所述UE重选所述第二小区作为服务小区；并所述UE在所述第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
结合第一方面的第六种可能的实现方式，在第一方面的第七种可能的实现方式中，所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，所述第三指示消息用于指示所述第二小区 能够控制所述UE在第三传输载频传输D2D业务数据。
结合第一方面的第六种可能的实现方式，在第一方面的第八种可能的实现方式中，所述第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级；所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
结合第一方面的第六种可能的实现方式，在第一方面的第九种可能的实现方式中，所述第一指示信息中还包括小区重选优先级；所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第二小区的信号质量大于所述第一小区的信号质量，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
第二方面，提供了一种设备到设备D2D业务传输方法，包括：第一小区通过第一传输载频发送第一指示信息，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，以使所述UE根据所述指示信息确定将所述第一小区作为服务小区并在所述第二传输载频传上传输D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
结合第二方面，在第二方面的第一种可能的实现方式中，所述方法还包 括：所述第一小区在确定出所述UE在所述第二传输载频上传输D2D业务数据时，所述第一小区为所述UE分配所述第二传输载频上的D2D传输资源。
结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，第一小区通过第一传输载频发送第一指示信息，包括：所述第一小区通过广播系统信息发送所述指示信息；或所述第一小区通过无线资源控制RRC专用控制信令发送第一指示信息。
结合第二方面至第二方面的第二种方式中的任一一种，在第二方面的第三种可能的实现方式中，在第一小区通过第一传输载频发送第一指示信息之前，所述方法还包括：所述第一小区接收所述UE发送的请求消息，所述请求消息包含所述UE感兴趣的D2D业务传输载频的频点信息；第一小区按照所述请求消息，发送第一指示信息。
结合第二方面至第二方面的第三种方式中的任一一种，在第二方面的第四种可能的实现方式中，所述第一小区通过第一传输载频发送第一指示信息中包含至少一个所述第二传输载频的频点信息。
结合第二方面的第四种可能的实现方式方式，在第二方面的第五种可能的实现方式中，所述第一小区发送的第一指示信息中的所述第二传输载频的频点信息包含在所述请求消息中。
结合第二方面至第二方面的第五种方式中的任一一种，在第二方面的第六种可能的实现方式中，所述方法还包括：所述第一小区接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
第三方面，提供了一种设备到设备D2D业务传输装置，包括：获取模块，用于获取位于第一传输载频的第一小区的信号质量；接收模块，用于接收所述第一小区发送的第一指示信息；选择模块，用于当确定出所述第一小区的信号质量大于预设门限，且接收到所述第一小区发送的第一指示信息时，选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，所述第一传 输载频和所述第二传输载频位于不同的频点；执行模块，用于通过所述第二传输载频传输D2D业务数据。
结合第三方面，在第三方面的第一种可能的实现方式中，所述接收模块，具体用于接收所述第一小区通过广播系统信息发送的第一指示信息；或接收所述第一小区通过无线资源控制RRC专用控制信令发送的第一指示信息。
结合第三方面或第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述装置还包括：第一发送模块，用于向所述第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使所述第一小区按照所述请求消息，发送第一指示信息。
结合第三方面至第三方面的第二种可能的实现方式中的任一一种，在第三方面的第三种可能的实现方式中，所述接收模块接收到的所述第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
结合第三方面的第二种或第三种可能的实现方式，在第三方面的第四种可能的实现方式中，所述选择模块选择的所述第二传输载频的频点包含在所述请求消息中。
结合第三方面至第三方面的第四种可能的实现方式中的任一一种，在第三方面的第五种可能的实现方式中，第二发送模块，用于向所述第一小区发送包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区UE将所述第二传输载频作为传输D2D业务的传输载频。
结合第三方面至第三方面的第三种可能的实现方式中的任一一种，在第三方面的第六种可能的实现方式中，所述装置还包括：确定模块，用于在第三传输载频上进行扫频，确定第二小区；重选模块，用于在所述第二小区符合设定条件时，重选所述第二小区作为服务小区；传输模块，用于在所述第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
结合第三方面的第六种可能的实现方式，在第三方面的第七种可能的实现方式中，所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送 的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
结合第三方面的第六种可能的实现方式，在第三方面的第八种可能的实现方式中，所述第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级；所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
结合第三方面的第六种可能的实现方式，在第三方面的第九种可能的实现方式中，所述第一指示信息中还包括小区重选优先级；所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第二小区的信号质量大于所述第一小区的信号质量，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消 息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
第四方面，提供了一种设备到设备D2D业务传输装置，包括：发送模块，用于通过第一传输载频发送第一指示信息，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，以使所述UE根据所述指示信息确定将所述第一小区作为服务小区并在所述第二传输载频传上传输D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
结合第四方面，在第四方面的第一种可能的实现方式中，所述装置还包括：执行模块，用于在确定出所述UE在所述第二传输载频上传输D2D业务数据时，为所述UE分配所述第二传输载频上的D2D传输资源。
结合第四方面或第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述发送模块，具体用于通过广播系统信息发送所述指示信息；或通过无线资源控制RRC专用控制信令发送第一指示信息。
结合第四方面至第四方面的第二种方式中的任一一种，在第四方面的第三种可能的实现方式中，所述装置还包括：第一接收模块，用于接收所述UE发送的请求消息，所述请求消息包含所述UE感兴趣的D2D业务传输载频的频点信息；所述发送模块，具体用于按照所述请求消息，发送第一指示信息。
结合第四方面至第四方面的第三种方式中的任一一种，在第四方面的第四种可能的实现方式中，所述发送模块，通过第一传输载频发送第一指示信息中包含至少一个所述第二传输载频的频点信息。
结合第四方面的第四种可能的实现方式方式，在第四方面的第五种可能的实现方式中，所述发送模块，发送的第一指示信息中的所述第二传输载频的频点信息包含在所述请求消息中。
结合第四方面至第四方面的第五种方式中的任一一种，在第四方面的第六种可能的实现方式中，所述装置还包括：第二接收模块，用于接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通 知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
第五方面，提供了一种设备到设备D2D业务传输设备，包括：处理器，用于获取位于第一传输载频的第一小区的信号质量；接口，用于接收所述第一小区发送的第一指示信息；所述处理器，用于当确定出所述第一小区的信号质量大于预设门限，且接收到所述第一小区发送的第一指示信息时，选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点；通过所述第二传输载频传输D2D业务数据。
结合第五方面，在第五方面的第一种可能的实现方式中，所述接口，具体用于接收所述第一小区通过广播系统信息发送的第一指示信息；或接收所述第一小区通过无线资源控制RRC专用控制信令发送的第一指示信息。
结合第五方面或第五方面的第一种可能的实现方式，在第五方面的第二种可能的实现方式中，所述处理器，还用于通过所述接口向所述第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使所述第一小区按照所述请求消息，发送第一指示信息。
结合第五方面至第五方面的第二种可能的实现方式中的任一一种，在第五方面的第三种可能的实现方式中，所述接口接收到的所述第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
结合第五方面的第二种或第三种可能的实现方式，在第五方面的第四种可能的实现方式中，所述处理器选择的所述第二传输载频的频点包含在所述请求消息中。
结合第五方面至第五方面的第四种可能的实现方式中的任一一种，在第五方面的第五种可能的实现方式中，所述接口，还用于向所述第一小区发送包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区UE将所述第二传输载频作为传输D2D业务的传输载频。
结合第五方面至第五方面的第三种可能的实现方式中的任一一种，在第五方面的第六种可能的实现方式中，所述处理器，还用于在第三传输载频上进行扫频，确定第二小区；用于在所述第二小区符合设定条件时，重选所述第二小区作为服务小区；用于在所述第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
结合第五方面的第六种可能的实现方式，在第五方面的第七种可能的实现方式中，所述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
结合第五方面的第六种可能的实现方式，在第五方面的第八种可能的实现方式中，所述第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级；所述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
结合第五方面的第六种可能的实现方式，在第五方面的第九种可能的实现方式中，所述第一指示信息中还包括小区重选优先级；所述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第二小区的信号质量大于所述第一小区的信号质量，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
第六方面，提供了一种设备到设备D2D业务传输设备，包括处理器和接口：所述处理器，用于通过接口，基于第一传输载频发送第一指示信息，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，以使所述UE根据所述指示信息确定将所述第一小区作为服务小区并在所述第二传输载频传上传输D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
结合第六方面，在第六方面的第一种可能的实现方式中，所述处理器，还用于在确定出所述UE在所述第二传输载频上传输D2D业务数据时，为所述UE分配所述第二传输载频上的D2D传输资源。
结合第六方面或第六方面的第一种可能的实现方式，在第六方面的第二种可能的实现方式中，所述接口，具体用于通过广播系统信息发送所述指示信息；或通过无线资源控制RRC专用控制信令发送第一指示信息。
结合第六方面至第六方面的第二种方式中的任一一种，在第六方面的第三种可能的实现方式中，所述接口还可用于接收所述UE发送的请求消息，所述请求消息包含所述UE感兴趣的D2D业务传输载频的频点信息；按照所述请求消息，发送第一指示信息。
结合第六方面至第六方面的第三种方式中的任一一种，在第六方面的第 四种可能的实现方式中，所述接口，具体用于通过第一传输载频发送第一指示信息中包含至少一个所述第二传输载频的频点信息。
结合第六方面的第四种可能的实现方式方式，在第六方面的第五种可能的实现方式中，所述接口，发送的第一指示信息中的所述第二传输载频的频点信息包含在所述请求消息中。
结合第六方面至第六方面的第五种方式中的任一一种，在第六方面的第六种可能的实现方式中，所述接口，还用于接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
通过采用上述技术方案，UE获取位于第一传输载频的第一小区的信号质量；当UE确定出第一小区的信号质量大于预设门限，且UE接收到第一小区发送的第一指示信息时，UE选择所述第一小区作为服务小区，UE通过所述第二传输载频传输D2D业务数据，通过接收第一指示信息，UE可以选择位于异频点的传输载频传输D2D业务，解决终端不能选择位于不同的频点的传输载频传输D2D业务数据的问题。
附图说明
图1为V2V通信示意图；
图2a为本发明实施一中，提出的D2D业务传输方法流程图；
图2b为本发明实施二中，提出的D2D业务传输方法流程图；
图3为本发明实施二中，提出的D2D业务传输装置结构组成示意图；
图4为本发明实施二中，提出的D2D业务传输设备结构组成示意图；
图5为本发明实施三中，提出的D2D业务传输方法流程图；
图6为本发明实施三中，提出的D2D业务传输装置结构组成示意图。
具体实施方式
针对通常情况下，终端不能选择位于不同的频点的传输载频传输D2D业 务数据的问题，本发明提出的技术方案中，UE获取位于第一传输载频的第一小区的信号质量；当UE确定出第一小区的信号质量大于预设门限，且UE接收到第一小区发送的第一指示信息时，UE选择所述第一小区作为服务小区，UE通过所述第二传输载频传输D2D业务数据，通过接收第一指示信息，UE可以选择位于异频点的传输载频传输D2D业务，解决终端不能选择位于不同的频点的传输载频传输D2D业务数据的问题。
下面将结合各个附图对本发明实施例技术方案的主要实现原理、具体实施方式及其对应能够达到的有益效果进行详细地阐述。
为便于阐述，本发明实施例提出的技术方案中，将小区和传输载频做出区分，分别为第一小区和第二小区，第一传输载频、第二传输载频和第三传输载频。相应地，对于终端侧，将用户终端(英文：user equipment，缩写：UE)作出区分，分别为第一UE和第二UE。
本发明实施例提出的D2D业务传输方法，UE获取位于第一传输载频的第一小区的信号质量。当UE确定出第一小区的信号质量大于预设门限，且UE接收到第一小区发送的第一指示信息时，UE选择第一小区作为服务小区，UE通过第二传输载频传输D2D业务数据。
其中第一指示信息用于指示第一小区能够控制UE在第二传输载频传输备D2D业务数据，第一传输载频和第二传输载频位于不同的频点。
下面将结合各个附图对本发明实施例技术方案的主要实现原理、具体实施方式及其对应能够达到的有益效果进行详细地阐述。
实施例一
本发明实施一提出一种D2D业务传输方法，如图2a所示，其具体处理流程如下述：
步骤21，UE获取位于第一传输载频的第一小区的信号质量。
UE通过对小区的信号质量进行测量，获取位于第一传输载频的第一小区的信号质量。
步骤22，第一小区发送第一指示信息。
上述步骤22和步骤21之间，并没有固定的时序关系，第一小区可以定时、周期性发送第一指示信息，也可以随时发送第一指示信息。为便于阐述，本发明实施一提出的技术方案中，将步骤21的执行顺序设置在步骤21之后。
其中，第一小区发送第一指示信息的发送方式可以包含下述两种方式：
第一种方式：第一小区通过广播系统信息发送第一指示信息。
第二种方式：第一小区通过RRC专用控制信令发送第一指示信息。
第一指示信息用于指示第一小区能够控制UE在第二传输载频上传输D2D业务数据，第一传输载频和第二传输载频位于不同的频点。
可选地，在上述步骤22第一小区发送第一指示信息之前，还包括：
UE向第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使第一小区按照接收到的请求消息，发送第一指示信息。
具体地，第一小区发送的第一指示信息中的第二传输载频的频点信息包含在请求消息中。
步骤23，UE确定出第一小区的信号质量大于预设门限，且UE接收到第一小区发送的指示信息时，UE选择第一小区作为服务小区。
相应地，UE可以通过下述两种方式接收第一小区发送的第一指示信息：
第一种方式：UE接收第一小区通过广播系统信息发送的第一指示信息。
第二种方式：UE接收第一小区通过RRC专用控制信令发送的第一指示信息。
其中，UE选择该第一小区作为服务小区，该服务小区是能够提供D2D业务的小区。
可选择的，在第一指示信息中，包含至少一个第二传输载频的频点。
步骤24，UE通过第二传输载频传输D2D业务数据。
以基于LTE的V2V通信场景为例来进行详细阐述：
UE通过第一传输载频接收到第一小区发送的指示信息，确定该第一小区支持控制第二传输载频上的V2V业务传输，该UE对该第一小区的信号质量进行测量，根据测量结果，判断该第一小区的信号质量是否大于或等于预设 门限，如果判断结果为是，则UE选择该第一小区接入并驻留，即UE选择第一小区作为服务小区，并将指示信息指示的第二传输载频作为承载V2V业务的传输载频。
在LTE的V2V通信场景中，传输V2V业务的传输载频和LTE的控制载频位于两个不同频点。按照现有D2D业务中小区选择的机制，并不支持LTE控制载频为V2V专用传输载频分配资源，基于此，本发明实施例一提出的技术方案中，位于第一传输载频的第一小区发送指示信息。UE根据接收到的指示信息，在确定出该第一小区的信号质量大于预设门限时，UE选择该第一小区作为服务小区，并在第二传输载频上传输V2V业务。
可选地，在上述步骤24之后，还可以包括：
UE设置D2D业务覆盖标识为有效值。
该种情况中，UE设置自身D2D业务覆盖标识为in-coverage，当该UE在第二传输载频上作为同步源发送同步信号时，设置为in-coverage可以具备更高的同步源优先级。
UE将第一小区作为服务小区后，UE不会一直处于静止状态，因此，随着UE的移动，UE可以检测到信号质量比第一小区还要高的第二小区，或者UE希望通过其他传输载频传输D2D业务，此时，UE需要进行小区重选。
因此，在上述步骤24UE通过第二传输载频传输D2D业务数据之后，还可以包括：
UE重选接入第二小区。
其中，UE在第三传输载频上进行扫频，确定第二小区,在第二小区符合设定条件时，UE重选该第二小区作为服务小区,UE在第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
设定条件包括下述中的至少一种：
第一种：第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，第二指示消息用于指示第二小区能够控制UE在第二传输载频传输D2D业务数据。
第二种：第一小区的信号质量小于接入门限，且第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，第二指示消息用于指示第二小区能够控制UE在第二传输载频传输D2D业务数据。
第三种：第一小区的信号质量小于接入门限，且第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第三指示消息，第三指示消息用于指示第二小区能够控制UE在第三传输载频传输D2D业务数据。
第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级，则该种场景下，设定条件包括下述几种方式：
第一种：第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第三指示消息，且第三传输载频的接入优先级大于第二传输载频，第三指示消息用于指示第二小区能够控制UE在第三传输载频传输D2D业务数据。
第二种：第一小区的信号质量小于接入门限，且第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第三指示消息，且第三传输载频的接入优先级大于第二传输载频，第三指示消息用于指示第二小区能够控制UE在第三传输载频传输D2D业务数据。
其中，第一指示信息中还包括小区重选优先级；
则该种场景下，设定条件包括：
第一种方式：第二小区的信号质量大于或等于重选门限值，且第二小区的重选优先级大于或等于第一小区，且UE能够接收到第二小区发送的第二指示消息，第二指示消息用于指示第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
第二种方式：第二小区的信号质量大于第一小区的信号质量，且第二小区的重选优先级大于或等于第一小区，且UE能够接收到第二小区发送的第二指示消息，第二指示消息用于指示第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
本发明实施例一提出的技术方案中，UE获取位于第一传输载频的第一小 区的信号质量；当UE确定出第一小区的信号质量大于预设门限，且UE接收到第一小区发送的第一指示信息时，UE选择所述第一小区作为服务小区，UE通过所述第二传输载频传输D2D业务数据，通过接收第一指示信息，UE可以选择位于异频点的传输载频传输D2D业务，解决终端不能选择位于不同的频点的传输载频传输D2D业务数据的问题。
实施例二
本发明实例二提出一种D2D业务传输方法，如图2b所示，其具体处理流程如下述：
步骤31，UE获取位于第一传输载频的第一小区的信号质量。
UE通过对小区的信号质量进行测量，获取位于第一传输载频的第一小区的信号质量。
步骤32：当UE确定出第一小区的信号质量大于预设门限，且UE接收到第一小区发送的第一指示信息时，UE选择第一小区作为服务小区。
其中第一指示信息用于指示第一小区能够控制UE在第二传输载频传输D2D业务数据，第一传输载频和第二传输载频位于不同的频点；
UE可以通过下述两种方式接收第一小区发送的第一指示信息：
第一种方式：UE接收第一小区通过广播系统信息发送的第一指示信息。
第二种方式：UE接收第一小区通过RRC专用控制信令发送的第一指示信息。
步骤33：UE通过第二传输载频传输D2D业务数据。
以基于LTE的V2V通信场景为例来进行详细阐述：
UE通过第一传输载频接收到第一小区发送的指示信息，确定该第一小区支持控制第二传输载频上的V2V业务传输，该UE对该第一小区的信号质量进行测量，根据测量结果，判断该第一小区的信号质量是否大于或等于预设门限，如果判断结果为是，则UE选择该第一小区接入并驻留，即UE选择第一小区作为服务小区，并将指示信息指示的第二传输载频作为承载V2V业务的传输载频。
在LTE的V2V通信场景中，传输V2V业务的传输载频和LTE的控制载频位于两个不同频点。按照现有D2D业务中小区选择的机制，并不支持LTE控制载频为V2V专用传输载频分配资源，基于此，本发明实施例一提出的技术方案中，位于第一传输载频的第一小区发送指示信息。UE根据接收到的指示信息，在确定出该第一小区的信号质量大于预设门限时，UE选择该第一小区作为服务小区，并在第二传输载频上传输V2V业务。
可选地，在所述UE接收到第一小区发送的第一指示信息之前，该方法还包括：
UE向第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使第一小区按照请求消息，发送第一指示信息。
具体地，第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
具体地，第一小区发送的第一指示信息中的第二传输载频的频点信息包含在请求消息中。
在UE在第二传输载频上传输D2D业务之后，该方法还包括：
UE向第一小区发送包含所述第二传输载频的频点信息的通知消息，其中通知消息用于通知第一小区所述UE将第二传输载频作为传输D2D业务的传输载频。
UE将第一小区作为服务小区后，UE不会一直处于静止状态，因此，随着UE的移动，UE可以检测到信号质量比第一小区还要高的第二小区，或者UE希望通过其他传输载频传输D2D业务，此时，UE需要进行小区重选。
因此，在上述UE通过第二传输载频传输D2D业务数据之后，还可以包括：
UE重选接入第二小区。
其中，UE在第三传输载频上进行扫频，确定第二小区,在第二小区符合设定条件时，UE重选该第二小区作为服务小区,UE在第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
设定条件包括下述中的至少一种：
第一种：第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，第二指示消息用于指示第二小区能够控制UE在第二传输载频传输D2D业务数据。
第二种：第一小区的信号质量小于接入门限，且第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，第二指示消息用于指示第二小区能够控制UE在第二传输载频传输D2D业务数据。
第三种：第一小区的信号质量小于接入门限，且第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第三指示消息，第三指示消息用于指示第二小区能够控制UE在第三传输载频传输D2D业务数据。
第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级，则该种场景下，设定条件包括下述几种方式：
第一种：第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第三指示消息，且第三传输载频的接入优先级大于第二传输载频，第三指示消息用于指示第二小区能够控制UE在第三传输载频传输D2D业务数据。
第二种：第一小区的信号质量小于接入门限，且第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第三指示消息，且第三传输载频的接入优先级大于第二传输载频，第三指示消息用于指示第二小区能够控制UE在第三传输载频传输D2D业务数据。
其中，第一指示信息中还包括小区重选优先级；
则该种场景下，设定条件包括：
第一种方式：第二小区的信号质量大于或等于重选门限值，且第二小区的重选优先级大于或等于第一小区，且UE能够接收到第二小区发送的第二指示消息，第二指示消息用于指示第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
第二种方式：第二小区的信号质量大于第一小区的信号质量，且第二小 区的重选优先级大于或等于第一小区，且UE能够接收到第二小区发送的第二指示消息，第二指示消息用于指示第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
相应地，本发明实施例二还提出一种D2D业务传输装置，如图3所示，包括：
获取模块301，用于获取位于第一传输载频的第一小区的信号质量。
接收模块302，用于接收第一小区发送的第一指示信息。
选择模块303，用于当确定出所述第一小区的信号质量大于预设门限，且接收到第一小区发送的第一指示信息时，选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
执行模块304，用于通过所述第二传输载频传输D2D业务数据。
具体地，上述接收模块302，具体用于接收所述第一小区通过广播系统信息发送的第一指示信息；或接收所述第一小区通过无线资源控制RRC专用控制信令发送的第一指示信息。
所述装置还包括：第一发送模块，用于向所述第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使所述第一小区按照所述请求消息，发送第一指示信息。
具体地，上述接收模块接收到的所述第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
具体地，上述选择模块选择的所述第二传输载频的频点包含在所述请求消息中。
所述装置还包括：第二发送模块，用于向所述第一小区发送包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区UE将所述第二传输载频作为传输D2D业务的传输载频。
所述装置还包括：
确定模块，用于在第三传输载频上进行扫频，确定第二小区；重选模块，用于在所述第二小区符合设定条件时，重选所述第二小区作为服务小区；传输模块，用于在所述第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
具体地，所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
其中，所述第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级；所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
其中，所述第一指示信息中还包括小区重选优先级；所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述第二小区的重选优先级大于或等于第一小区，且所述 UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第二小区的信号质量大于所述第一小区的信号质量，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
相应地，本发明实施例二还提出一种备D2D业务传输设备，如图4所示，包括处理器、接口和总线，处理器和接口之间通过总线连接：
处理器401，用于获取位于第一传输载频的第一小区的信号质量。
处理器可以是中央处理器(英文：central processing unit，缩写：CPU)，或者是CPU和硬件芯片的组合。信号处理器还可以是网络处理器(英文：network processor，缩写：NP)。或者是CPU和NP的组合，或者是NP和硬件芯片的组合。
上述硬件芯片可以是以下一种或多种的组合：专用集成电路(英文：application-specific integrated circuit，缩写：ASIC)，现场可编程逻辑门阵列(英文：field-programmable gate array，缩写：FPGA)，复杂可编程逻辑器件(英文：complex programmable logic device，缩写：CPLD)。
接口402，用于接收所述第一小区发送的第一指示信息；
接口可以为以下一种或多种：提供有线接口的网络接口控制器(英文：network interface controller，缩写：NIC)，例如以太网NIC，该以太网NIC可以提供铜线和/或光纤接口；提供无线接口的NIC，例如无线局域网(英文：wireless local area network，缩写：WLAN)NIC。
所述处理器401，用于当确定出第一小区的信号质量大于预设门限，且接收到所述第一小区发送的第一指示信息时，选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点；通过所述第二传输载频传输D2D业务数据。
具体地，上述接口，具体用于接收所述第一小区通过广播系统信息发送的第一指示信息；或接收所述第一小区通过无线资源控制RRC专用控制信令发送的第一指示信息。
具体地，上述处理器，还用于通过所述接口向所述第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使所述第一小区按照所述请求消息，发送第一指示信息。
具体地，上述接口接收到的所述第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
具体地，上述处理器选择的所述第二传输载频的频点包含在所述请求消息中。
具体地，上述接口，还用于向所述第一小区发送包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区UE将所述第二传输载频作为传输D2D业务的传输载频。
具体地，上述处理器，还用于在第三传输载频上进行扫频，确定第二小区；用于在所述第二小区符合设定条件时，重选所述第二小区作为服务小区；用于在所述第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
具体地，上述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
具体地，上述第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级；所述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
第一指示信息中还包括小区重选优先级；所述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第二小区的信号质量大于所述第一小区的信号质量，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
实施例三
本发明实施例三提出一种D2D业务传输方法，如图5所示，其具体处理流程如下述：
步骤41：第一小区确定第一指示信息。
步骤42：第一小区通过第一传输载频发送第一指示信息。
其中第一指示信息用于指示第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，以使UE根据指示信息确定将第一小区作为服务小区并在第二传输载频传上传输D2D业务数据。
其中，第一小区发送第一指示信息的发送方式可以包含下述两种方式：
第一种方式：第一小区通过广播系统信息发送第一指示信息。
第二种方式：第一小区通过RRC专用控制信令发送第一指示信息。
第一指示信息用于指示第一小区能够控制UE在第二传输载频上传输D2D业务数据，第一传输载频和第二传输载频位于不同的频点。
第一传输载频和所述第二传输载频位于不同的频点。
上述方法还包括：
第一小区在确定出UE在第二传输载频上传输D2D业务数据时，第一小区为UE分配第二传输载频上的D2D传输资源。
第一小区通过第一传输载频发送第一指示信息，包括：第一小区通过广播系统信息发送所述指示信息；或第一小区通过无线资源控制RRC专用控制信令发送第一指示信息。
在第一小区通过第一传输载频发送第一指示信息之前，该方法还包括：
第一小区接收UE发送的请求消息，第一小区按照请求消息，发送第一指示信息。
请求消息包含UE感兴趣的D2D业务传输载频的频点信息。
第一小区通过第一传输载频发送第一指示信息中包含至少一个第二传输载频的频点信息。
第一小区发送的第一指示信息中的第二传输载频的频点信息包含在请求消息中。
方法还包括：
所述第一小区接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
相应地，本发明实施例三还提出一种D2D业务传输装置，如图5所示，包括：
确定模块501，用于确定第一指示信息。
发送模块502，用于通过第一传输载频发送第一指示信息，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，以使所述UE根据所述指示信息确定将所述第一小区作为服务小区并在所述第二传输载频传上传输D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
所述装置还包括：
执行模块，用于在确定出所述UE在所述第二传输载频上传输D2D业务数据时，为所述UE分配所述第二传输载频上的D2D传输资源。
具体地，上述发送模块，具体用于通过广播系统信息发送所述指示信息；或通过无线资源控制RRC专用控制信令发送第一指示信息。
该装置还包括：第一接收模块，用于接收所述UE发送的请求消息，所述请求消息包含所述UE感兴趣的D2D业务传输载频的频点信息；所述发送模块，具体用于按照所述请求消息，发送第一指示信息。
具体地，上述发送模块，通过第一传输载频发送第一指示信息中包含至少一个第二传输载频的频点信息。
具体地，上述发送模块，发送的第一指示信息中的所述第二传输载频的频点信息包含在所述请求消息中。
所述装置还包括：第二接收模块，用于接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
相应地，本发明实施例三还提出一种D2D业务传输设备，其结构组成示意图请参见图4所示，包括处理器、接口，处理器和接口之间通过总线连接：
所述处理器，用于通过接口，基于第一传输载频发送第一指示信息，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，以使所述UE根据所述指示信息确定将所述第一小区作为服务小区并在所述第二传输载频传上传输D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
处理器，还用于在确定出所述UE在所述第二传输载频上传输D2D业务数据时，为所述UE分配所述第二传输载频上的D2D传输资源。
接口，具体用于通过广播系统信息发送所述指示信息；或通过无线资源控制RRC专用控制信令发送第一指示信息。
接口还可用于接收所述UE发送的请求消息，所述请求消息包含所述UE感兴趣的D2D业务传输载频的频点信息；按照所述请求消息，发送第一指示信息。
接口，具体用于通过第一传输载频发送第一指示信息中包含至少一个所述第二传输载频的频点信息。
接口，发送的第一指示信息中的所述第二传输载频的频点信息包含在所述请求消息中。
接口，还用于接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
本领域的技术人员应明白，本发明的实施例可提供为方法、装置(设备)、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、只读光盘、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (51)

  1. 一种设备到设备D2D业务传输方法，其特征在于，包括：
    UE获取位于第一传输载频的第一小区的信号质量；
    当所述UE确定出所述第一小区的信号质量大于预设门限，且所述UE接收到所述第一小区发送的第一指示信息时，所述UE选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制所述UE在第二传输载频传输设备到设备D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点；
    所述UE通过所述第二传输载频传输D2D业务数据。
  2. 如权利要求1所述的方法，其特征在于，所述UE接收到所述第一小区发送的第一指示信息，包括：
    所述UE接收到所述第一小区通过广播系统信息发送的第一指示信息；或
    所述UE接收到所述第一小区通过无线资源控制RRC专用控制信令发送的第一指示信息。
  3. 如权利要求1或2所述的方法，其特征在于，在所述UE接收到所述第一小区发送的第一指示信息之前，所述方法还包括：
    所述UE向所述第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使所述第一小区按照所述请求消息，发送第一指示信息。
  4. 如权利要求1～3任一所述的方法，其特征在于，所述第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
  5. 如权利要求3或4所述的方法，其特征在于，所述第二传输载频的频点包含在所述请求消息中。
  6. 如权利要求1～5任一所述的方法，其特征在于，在所述UE在所述第二传输载频上传输D2D业务之后，所述方法还包括：
    所述UE向所述第一小区发送包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频 作为传输D2D业务的传输载频。
  7. 如权利要求1～4任一所述的方法，其特征在于，在所述UE在所述第二传输载频上传输D2D业务之后，所述方法还包括：
    所述UE在第三传输载频上进行扫频，确定第二小区；
    在所述第二小区符合设定条件时，所述UE重选所述第二小区作为服务小区；并
    所述UE在所述第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
  8. 如权利要求7所述的方法，其特征在于，所述设定条件包括下述中的至少一种：
    所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；
    所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；
    所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
  9. 如权利要求7所述的方法，其特征在于，所述第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级；
    所述设定条件包括下述中的至少一种：
    所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三 传输载频传输D2D业务数据；
    所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
  10. 如权利要求7所述的方法，其特征在于，所述第一指示信息中还包括小区重选优先级；
    所述设定条件包括下述中的至少一种：
    所述第二小区的信号质量大于或等于重选门限值，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；
    所述第二小区的信号质量大于所述第一小区的信号质量，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
  11. 一种设备到设备D2D业务传输方法，其特征在于，包括：
    第一小区通过第一传输载频发送第一指示信息，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，以使所述UE根据所述指示信息确定将所述第一小区作为服务小区并在所述第二传输载频传上传输D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
  12. 如权利要求11所述的方法，其特征在于，所述方法还包括：
    所述第一小区在确定出所述UE在所述第二传输载频上传输D2D业务数据时，所述第一小区为所述UE分配所述第二传输载频上的D2D传输资源。
  13. 如权利要求11或12所述的方法，其特征在于，第一小区通过第一传输载频发送第一指示信息，包括：
    所述第一小区通过广播系统信息发送所述指示信息；或
    所述第一小区通过无线资源控制RRC专用控制信令发送第一指示信息。
  14. 如权利要求11～13任一所述的方法，其特征在于，在第一小区通过第一传输载频发送第一指示信息之前，所述方法还包括：
    所述第一小区接收所述UE发送的请求消息，所述请求消息包含所述UE感兴趣的D2D业务传输载频的频点信息；
    第一小区按照所述请求消息，发送第一指示信息。
  15. 如权利要求11～14任一所述的方法，其特征在于，所述第一小区通过第一传输载频发送第一指示信息中包含至少一个所述第二传输载频的频点信息。
  16. 如权利要求14所述的方法，其特征在于，所述第一小区发送的第一指示信息中的所述第二传输载频的频点信息包含在所述请求消息中。
  17. 如权利要求11～16任一所述的方法，其特征在于，所述方法还包括：
    所述第一小区接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
  18. 一种设备到设备D2D业务传输装置，其特征在于，包括：
    获取模块，用于获取位于第一传输载频的第一小区的信号质量；
    接收模块，用于接收所述第一小区发送的第一指示信息；
    选择模块，用于当确定出所述第一小区的信号质量大于预设门限，且接收到所述第一小区发送的第一指示信息时，选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点；
    执行模块，用于通过所述第二传输载频传输D2D业务数据。
  19. 如权利要求18所述的装置，其特征在于，所述接收模块，具体用于接收所述第一小区通过广播系统信息发送的第一指示信息；或接收所述第一 小区通过无线资源控制RRC专用控制信令发送的第一指示信息。
  20. 如权利要求18或19所述的装置，其特征在于，所述装置还包括：
    第一发送模块，用于向所述第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使所述第一小区按照所述请求消息，发送第一指示信息。
  21. 如权利要求18～20任一所述的装置，其特征在于，所述接收模块接收到的所述第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
  22. 如权利要求20或21所述的装置，其特征在于，所述选择模块选择的所述第二传输载频的频点包含在所述请求消息中。
  23. 如权利要求18～22任一所述的装置，其特征在于，所述装置还包括：
    第二发送模块，用于向所述第一小区发送包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区UE将所述第二传输载频作为传输D2D业务的传输载频。
  24. 如权利要求18～21任一所述的装置，其特征在于，所述装置还包括：
    确定模块，用于在第三传输载频上进行扫频，确定第二小区；
    重选模块，用于在所述第二小区符合设定条件时，重选所述第二小区作为服务小区；
    传输模块，用于在所述第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
  25. 如权利要求24所述的装置，其特征在于，所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输 D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
  26. 如权利要求24所述的装置，其特征在于，所述第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级；所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
  27. 如权利要求24所述的装置，其特征在于，所述第一指示信息中还包括小区重选优先级；所述重选模块确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第二小区的信号质量大于所述第一小区的信号质量，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
  28. 一种设备到设备D2D业务传输装置，其特征在于，包括：
    发送模块，用于通过第一传输载频发送第一指示信息，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传输设备到设备D2D业务数据，以使所述UE根据所述指示信息确定将所述第一小区作为服 务小区并在所述第二传输载频传上传输D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
  29. 如权利要求28所述的装置，其特征在于，所述装置还包括：
    执行模块，用于在确定出所述UE在所述第二传输载频上传输D2D业务数据时，为所述UE分配所述第二传输载频上的D2D传输资源。
  30. 如权利要求28或29所述的装置，其特征在于，所述发送模块，具体用于通过广播系统信息发送所述指示信息；或通过无线资源控制RRC专用控制信令发送第一指示信息。
  31. 如权利要求28～30任一所述的装置，其特征在于，所述装置还包括：
    第一接收模块，用于接收所述UE发送的请求消息，所述请求消息包含所述UE感兴趣的D2D业务传输载频的频点信息；
    所述发送模块，具体用于按照所述请求消息，发送第一指示信息。
  32. 如权利要求28～31任一所述的装置，其特征在于，所述发送模块，通过第一传输载频发送第一指示信息中包含至少一个所述第二传输载频的频点信息。
  33. 如权利要求32所述的装置，其特征在于，所述发送模块，发送的第一指示信息中的所述第二传输载频的频点信息包含在所述请求消息中。
  34. 如权利要求28～33任一所述的装置，其特征在于，所述装置还包括：
    第二接收模块，用于接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
  35. 一种设备到设备D2D业务传输设备，其特征在于，包括：
    处理器，用于获取位于第一传输载频的第一小区的信号质量；
    接口，用于接收所述第一小区发送的第一指示信息；
    所述处理器，用于当确定出所述第一小区的信号质量大于预设门限，且接收到所述第一小区发送的第一指示信息时，选择所述第一小区作为服务小区，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载 频传输设备到设备D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点；通过所述第二传输载频传输D2D业务数据。
  36. 如权利要求35所述的设备，其特征在于，所述接口，具体用于接收所述第一小区通过广播系统信息发送的第一指示信息；或接收所述第一小区通过无线资源控制RRC专用控制信令发送的第一指示信息。
  37. 如权利要求35或36所述的设备，其特征在于，所述处理器，还用于通过所述接口向所述第一小区发送包含感兴趣的D2D业务传输载频的频点信息的请求消息，以使所述第一小区按照所述请求消息，发送第一指示信息。
  38. 如权利要求35～37任一所述的设备，其特征在于，所述接口接收到的所述第一指示信息中包含至少一个所述第二传输载频的频点的频点信息。
  39. 如权利要求37或38所述的设备，其特征在于，所述处理器选择的所述第二传输载频的频点包含在所述请求消息中。
  40. 如权利要求35～39任一所述的设备，其特征在于，所述接口，还用于向所述第一小区发送包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区UE将所述第二传输载频作为传输D2D业务的传输载频。
  41. 如权利要求35～40任一所述的设备，其特征在于，所述处理器，还用于在第三传输载频上进行扫频，确定第二小区；用于在所述第二小区符合设定条件时，重选所述第二小区作为服务小区；用于在所述第二小区能够控制的用于执行D2D业务的传输载频上传输D2D业务数据。
  42. 如权利要求41所述的设备，其特征在于，所述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输 D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
  43. 如权利要求41所述的设备，其特征在于，所述第一指示信息中还包括用于传输D2D业务的传输载频的接入优先级；所述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据；所述第一小区的信号质量小于接入门限，且所述第二小区的信号质量大于或等于重选门限值，且所述UE能够接收到第二小区发送的第三指示消息，且所述第三传输载频的接入优先级大于第二传输载频，所述第三指示消息用于指示所述第二小区能够控制所述UE在第三传输载频传输D2D业务数据。
  44. 如权利要求41所述的设备，其特征在于，所述第一指示信息中还包括小区重选优先级；所述处理器确定的所述设定条件包括下述中的至少一种：所述第二小区的信号质量大于或等于重选门限值，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据；所述第二小区的信号质量大于所述第一小区的信号质量，且所述第二小区的重选优先级大于或等于第一小区，且所述UE能够接收到第二小区发送的第二指示消息，所述第二指示消息用于指示所述第二小区能够控制所述UE在第二传输载频传输D2D业务数据。
  45. 一种设备到设备D2D业务传输设备，其特征在于，包括处理器和接口：
    所述处理器，用于通过接口，基于第一传输载频发送第一指示信息，其中所述第一指示信息用于指示所述第一小区能够控制UE在第二传输载频传 输设备到设备D2D业务数据，以使所述UE根据所述指示信息确定将所述第一小区作为服务小区并在所述第二传输载频传上传输D2D业务数据，所述第一传输载频和所述第二传输载频位于不同的频点。
  46. 如权利要求45所述的设备，其特征在于，所述处理器，还用于在确定出所述UE在所述第二传输载频上传输D2D业务数据时，为所述UE分配所述第二传输载频上的D2D传输资源。
  47. 如权利要求45或46所述的设备，其特征在于，所述接口，具体用于通过广播系统信息发送所述指示信息；或通过无线资源控制RRC专用控制信令发送第一指示信息。
  48. 如权利要求45～47任一所述的设备，其特征在于，所述接口还可用于接收所述UE发送的请求消息，所述请求消息包含所述UE感兴趣的D2D业务传输载频的频点信息；按照所述请求消息，发送第一指示信息。
  49. 如权利要求45～48任一所述的设备，其特征在于，所述接口，具体用于通过第一传输载频发送第一指示信息中包含至少一个所述第二传输载频的频点信息。
  50. 如权利要求49所述的设备，其特征在于，所述接口，发送的第一指示信息中的所述第二传输载频的频点信息包含在所述请求消息中。
  51. 如权利要求45～50任一所述的设备，其特征在于，所述接口，还用于接收UE发送的包含所述第二传输载频的频点信息的通知消息，其中所述通知消息用于通知所述第一小区所述UE将所述第二传输载频作为传输D2D业务数据的传输载频。
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