CN109803243A - PC5 carrier frequency selecting method, device, equipment and base station - Google Patents

PC5 carrier frequency selecting method, device, equipment and base station Download PDF

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Publication number
CN109803243A
CN109803243A CN201711140295.2A CN201711140295A CN109803243A CN 109803243 A CN109803243 A CN 109803243A CN 201711140295 A CN201711140295 A CN 201711140295A CN 109803243 A CN109803243 A CN 109803243A
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China
Prior art keywords
carrier frequency
information
data
transmission
base station
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CN201711140295.2A
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Chinese (zh)
Inventor
黄莹
陈琳
张博源
汪梦珍
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ZTE Corp
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ZTE Corp
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Priority to CN201711140295.2A priority Critical patent/CN109803243A/en
Priority to PCT/CN2018/116030 priority patent/WO2019096275A1/en
Publication of CN109803243A publication Critical patent/CN109803243A/en
Pending legal-status Critical Current

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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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the present invention provides a kind of PC5 carrier frequency selecting method, device, equipment and base station, when V2X sender needs to send V2X business datum using carrier frequency, V2X sending ending equipment can obtain the initial candidate carrier frequency set of the V2X business datum according to the service identification and service identification and carrier frequency mapping relations of V2X business datum, and using carrier frequency select information further selected from initial candidate carrier frequency set qualified carrier frequency as the transmission carrier frequency of V2X business datum to be transmitted to V2X business datum, it can be achieved that the more accurate selection and matching of carrier frequency；Recipient receives ability by limited time, V2X receiving device can identify the sequence of corresponding priority from high to low according to the target service of each V2X business datum, it selects the energy within the scope of self-ability while received M carrier frequency is as reception carrier, to the reception of the V2X of the certifiable interested high priority of user, the satisfaction of user experience is promoted.

Description

PC5 carrier frequency selecting method, device, equipment and base station
Technical field
The present invention relates to the communications field more particularly to a kind of PC5 carrier frequency selecting method, device, equipment and base stations.
Background technique
With the development of communication technology and demand it is abundant, the application scenarios of wireless communication are also increasingly extensive, wherein comparing Typically car networking (Vehicle Networking).So-called car networking is that vehicle can participate in wireless communication, is led to It crosses using advanced radio honeycomb communication technology, realizes that vehicle and vehicle, the real-time information interaction between vehicle and trackside infrastructure are informed The road environment information current state (position including vehicle, speed, acceleration, driving path) each other and known, cooperation Road hazard condition is perceived, a variety of anti-collision warning informations are provided in time, prevent the generation of traffic safety accident.Currently, vehicle The mode of connected network communication is specifically divided into three kinds: truck traffic (Vehicle-to-Vehicle Communications, V2V), vehicle Network Communication (Vehicle-to-Infrastructure Communications, V2I), vehicle people communicate (Vehicle-to- Pedestrian, V2P) three classes, it is these three types of also to may be collectively referred to as V2X (Vehicle-to-Everything) communication.
Under V2X car networking communication pattern, the transmission of V2X message can be transmitted in a broadcast manner, one kind of broadcast It is achieved in that direct discovery/communication (D2D, sidelink, ProSe) based on UE to UE is supported through PC5 interface (in 3GPP The interface directly interacted between UE and UE introduced in Rel-12, referred to as PC5 interface) carry out V2X message broadcast Transmission.With V2X Communication Development, the demand of V2X business datum high reliability and/or high rate data transmission is increasingly urgent to, it is desirable to The same V2X business datum needs to be transmitted using multiple carrier frequency, selects at this point for the carrier frequency for carrying out data transmission Accuracy requirement also just it is higher and higher.It is corresponding, for reciever UE, it is limited since it receives ability, it is logical for sender Cross the V2X business datum that multiple carrier frequency are sent, it is possible to have no ability to receive the V2X business sent on this multiple carrier frequency simultaneously Data, just needing to solve the problems, such as how the limited recipient UE of reception ability determines at this time needs received carrier frequency.
Summary of the invention
It a kind of PC5 carrier frequency selection provided in an embodiment of the present invention, V2X business datum sending and receiving method, device and sets It is standby, mainly solving the technical problems that: the accuracy and V2X recipient for how promoting carrier frequency selection receive ability by limited time How to determine and needs received carrier frequency.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of PC5 carrier frequency selecting method, comprising:
The V2X business datum is obtained according to the service identification of V2X business datum and service identification and carrier frequency mapping relations Initial candidate carrier frequency set；
Select information that the transmission of the V2X business datum is selected to carry from the initial candidate carrier frequency set according to carrier frequency Frequently.
The embodiment of the present invention also provides a kind of PC5 carrier frequency selecting method, comprising:
It receives the carrier frequency that V2X sending ending equipment is sent and selects auxiliary information, the carrier frequency selection auxiliary information includes basis The initial candidate that the service identification and service identification and carrier frequency mapping relations of V2X business datum obtain the V2X business datum carries Frequency is gathered；
Carrier frequency selection control information is sent to the V2X sending ending equipment.
The embodiment of the present invention also provides a kind of PC5 carrier frequency selecting method, comprising:
Obtain the corresponding priority of service identification or the service identification list with priority ranking；
According to the corresponding priority of service identification or to receive the service identification list of priority ranking, select described The corresponding carrier frequency of the business of energy while received M higher priority, which is used as, in the range of PC5 multi-carrier frequency reception ability is supported connects Frequency is recorded, the M is the integer more than or equal to 1.
The embodiment of the present invention also provides a kind of PC5 carrier frequency selection device, comprising:
Initial selected module, for being obtained according to the service identification and service identification of V2X business datum with carrier frequency mapping relations To the initial candidate carrier frequency set of the V2X business datum；
Carrier frequency determining module, for selecting information to select the V2X from the initial candidate carrier frequency set according to carrier frequency The transmission carrier frequency of business datum.
The embodiment of the present invention also provides a kind of PC5 carrier frequency selection device, comprising:
Information receiving module, the carrier frequency for receiving the transmission of V2X sending ending equipment select auxiliary information, the carrier frequency selection Auxiliary information includes obtaining the V2X business according to the service identification and service identification and carrier frequency mapping relations of V2X business datum The initial candidate carrier frequency set of data；
Configuration processing module, for sending carrier frequency selection control information to the V2X sending ending equipment.
The embodiment of the present invention also provides a kind of PC5 carrier frequency selection device, comprising:
Business obtains module, for obtaining the corresponding priority of service identification or being arranged with the service identification of priority ranking Table；
Carrier-frequency capture module, for according to the corresponding priority of service identification or to receive the service identification of priority ranking List selects to receive the business pair of energy while received M higher priority in the range of ability is supported in the PC5 multi-carrier frequency For the carrier frequency answered as reception carrier, the M is the integer more than or equal to 1.
The embodiment of the present invention also provides a kind of V2X sending ending equipment, the V2X sending ending equipment include first processor, First memory and the first communication bus；
First communication bus is for realizing the connection communication between first processor and first memory；
The first processor is for executing one or more first program stored in first memory, to realize such as Above the step of PC5 carrier frequency selecting method.
The embodiment of the present invention also provides a kind of base station, and the base station includes that second processor, second memory and second are logical Believe bus；
Second communication bus is for realizing the connection communication between second processor and second memory；
The second processor is for executing one or more third program stored in second memory, to realize such as Above the step of PC5 carrier frequency selecting method.
The embodiment of the present invention also provides a kind of V2X receiving device, the V2X receiving device include third processor, Third memory and third communication bus；
The third communication bus is for realizing the connection communication between third processor and third memory；
The third processor is for executing one or more third program stored in third memory, to realize such as Above the step of PC5 carrier frequency selecting method.
The embodiment of the present invention also provides a kind of computer storage medium, and the computer-readable recording medium storage has one Or multiple first programs, one or more of programs are executed by one or more processor, it is as described above to realize PC5 carrier frequency selecting method the step of.
The beneficial effects of the present invention are:
The PC5 carrier frequency selecting method, device, equipment and the base station that there is provided according to embodiments of the present invention and storage medium, V2X hair When the side of sending needs to send V2X business datum using carrier frequency, V2X sending ending equipment can according to the service identification of V2X business datum and Service identification and carrier frequency mapping relations obtain the initial candidate carrier frequency set of the V2X business datum, and utilize carrier frequency selection letter Breath further selects qualified carrier frequency as the transmission carrier frequency of V2X business datum with right from initial candidate carrier frequency set V2X business datum is transmitted, it can be achieved that the more accurate selection and matching of carrier frequency；For recipient receive ability by limited time, V2X receiving device can identify the sequence of corresponding priority from high to low according to the target service of each V2X business datum, selection Itself PC5 multi-carrier frequency receive in the range of ability information is supported can simultaneously received M carrier frequency as reception carrier, so as to The reception for guaranteeing the V2X of the interested high priority of user, promotes the satisfaction of user experience.
Other features of the invention and corresponding beneficial effect are described in the aft section of specification, and should be managed Solution, at least partly beneficial effect is apparent from from the record in description of the invention.
Detailed description of the invention
Fig. 1 is the PC5 carrier frequency selecting method flow diagram of the embodiment of the present invention one；
Fig. 2 is that the combination carrier frequency selection control information of the embodiment of the present invention one carries out the flow diagram of PC5 carrier frequency selection；
Fig. 3 is the PC5 carrier frequency selecting method flow diagram of the embodiment of the present invention two；
Fig. 4 is the PC5 carrier frequency selection device structural schematic diagram of the embodiment of the present invention three；
Fig. 5 is the V2X sending ending equipment structural schematic diagram of the embodiment of the present invention three；
Fig. 6 is another PC5 carrier frequency selection device structural schematic diagram of the embodiment of the present invention three；
Fig. 7 is the architecture of base station schematic diagram of the embodiment of the present invention three；
Fig. 8 is the transmission carrier frequency selecting method flow diagram of the mode 4UE of the RRC Idle state of the embodiment of the present invention three；
Fig. 9 is the transmission carrier frequency selecting method flow diagram of the mode 4UE of the RRC connected state of the embodiment of the present invention four；
The transmission carrier frequency selecting method process signal that Figure 10 is the mode 3UE of the RRC connected state of the embodiment of the present invention five Figure；
Figure 11 is the communication scheme one between the Vehicle UE of the embodiment of the present invention five；
Figure 12 is the communication scheme two between the Vehicle UE of the embodiment of the present invention five；
Figure 13 is the communication scheme three between the Vehicle UE of the embodiment of the present invention five；
Figure 14 is the PC5 carrier frequency selecting method flow diagram of the embodiment of the present invention six；
Figure 15 is the PC5 carrier frequency selection device structural schematic diagram of the embodiment of the present invention six；
Figure 16 is the V2X receiving device structural schematic diagram of the embodiment of the present invention six；
Figure 17 is the PC5 reception carrier selection method flow diagram of the embodiment of the present invention six.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below by specific embodiment knot Attached drawing is closed to be described in further detail the embodiment of the present invention.It should be appreciated that specific embodiment described herein is only used to It explains the present invention, is not intended to limit the present invention.
Embodiment one:
Under V2X car networking communication pattern, the transmission of V2X message can be passed in a manner of multicast and in the way of broadcast It is defeated.A kind of side's implementation of multicast is then based on MBSFN (Multicast Broadcast Single Frequency Network) and the support of the broadcast mechanism of SC-PTM (Single-cell point-to multiple point) passes through Uu mouthfuls Carry out the broadcast transmission of V2X message.Broadcast it is a kind of be achieved in that based on UE to UE direct discovery/communication (D2D, Sidelink, ProSe) support that (one introduced in 3GPP Rel-12 is directly handed between UE and UE by PC5 interface Mutual interface, referred to as PC5 interface) carry out V2X message broadcast transmission.Traditional cellular network centered on base station is in high number There are apparent limitations in terms of support according to rate and adjacent service, are not able to satisfy the need for doing data rate He closing on service It asks.The application of D2D technology, the burden that can mitigate cellular network, improve data rate at the battery power consumption for reducing user equipment, And improve the robustness of network infrastructure, meet the requirement of above-mentioned high data rate traffic and adjacent service well, therefore D2D can also be used to meet the requirement of high data rate traffic and adjacent service in V2X communication.D2D technology is also referred to as neighbour at present Nearly service (ProSe, Proximity Services), unilateral link (SL, SideLink).
Equally, in V2X communication, data high reliability and/or high rate data transmission are also a kind of vast demand and development Trend, and to realize V2X business datum high reliability and/or high rate data transmission, it is necessary to V2X business datum is used into multiple loads Frequency transmitted, at this point for carrier frequency selection accuracy require it is higher, and need solve how to select need it is to be used The problem of multiple carrier frequency.The present embodiment provides a kind of PC5 carrier frequency selecting method for this problem, and the PC5 in the present embodiment is carried Frequency used carrier frequency when referring to through the transmission of PC5 interface, wherein the PC5 carrier frequency selecting method is shown in Figure 1, comprising:
S101:V2X sending ending equipment is obtained according to the service identification and service identification of V2X business datum with carrier frequency mapping relations To the initial candidate carrier frequency set of the V2X business datum.
It should be understood that the V2X sending ending equipment in the present embodiment can be vehicle-mounted terminal equipment, it is also possible to user Terminal device.The mode that can be specifically communicated according to specific car networking determines.And the V2X sending ending equipment in the present embodiment It is used as V2X business datum recipient simultaneously.
In the present embodiment, service identification and carrier frequency mapping relations can pass through service identification and V2X carrier frequency mapping table It is characterized.Service identification and carrier frequency mapping relations in the present embodiment can also be configured by way of pre-configuration to be sent in V2X In end equipment；It can certainly be arranged in by other means on V2X sending ending equipment.
In the present embodiment, it after getting service identification, takes the service identification to service identification and the mapping of V2X carrier frequency is closed It is to be inquired in table, the corresponding carrier frequency of the service identification can be found, all carrier frequency corresponding to the service identification then forms Initial candidate carrier frequency set.And service identification can be specifically transmitted to the bottom of V2X sending ending equipment by the high level of V2X sending ending equipment Layer.
S102:V2X sending ending equipment selects information to select V2X business datum from initial candidate carrier frequency set according to carrier frequency Transmission carrier frequency.Selecting information according to carrier frequency, further selection transmission carrier frequency can promote carrier frequency from initial candidate carrier frequency set The accuracy of selection.
In the present embodiment, V2X sending ending equipment selects information to select from the initial candidate carrier frequency set according to carrier frequency The transmission carrier frequency of the V2X business datum includes that V2X sending ending equipment utilizes carrier frequency selection information to initial candidate carrier frequency set In ineligible carrier frequency delete to obtain the process of effective candidate carrier frequencies set.
In the present embodiment, V2X sending ending equipment uses specific carrier frequency selection information and specific choice mode can be with According to the current connection status of V2X sending ending equipment and currently employed resource allocation mode flexible choice.
For example, supporting two kinds of resources allocation model: the 1) resource allocation (Scheduled based on scheduling in V2X communication Resource allocation, also referred to as mode 3), UE need to enter RRC connection status and be used for base station requests under this mode The resource of transmission, UE request resource by sending sidelink UE information message to base station.Certainly in this implementation Resource can also be requested by sending other message to base station in example, however it is not limited to sidelink UE information message. 2) UE primary resource selects (UE autonomous resource selection, also referred to as mode 4), UE under this mode Select resource independently from resource pool based on sensing is monitored to carry out SCI (Sidelink Control Information) It is transmitted with data；This mode can be used for the UE of RRC idle state or RRC connection status.
Therefore, in the present embodiment, when V2X sending ending equipment is under RRC idle state, V2X sending ending equipment can To use 4 mode of mode, the information that can be used for carrier frequency selection that is itself and obtaining from base station or elsewhere can be used The selection of carrier frequency is carried out, the relevant information for realizing carrier frequency selection obtained from base station can be known as carrier frequency choosing in the present embodiment Control information is selected, and V2X sending ending equipment can obtain relevant carrier frequency selection control information from base station by system message at this time. It is of course to be understood that carrier frequency selection control information is not limited to obtain from base station, however not excluded that by being pre-configured or from physics The modes such as layer acquisition are obtained.
When V2X sending ending equipment is under RRC connection status, V2X sending ending equipment can be using flexibly in mode It is selected between 4 mode of 3 modes and mode, at this point, the information that correlation can be can be used for carrier frequency selection by V2X sending ending equipment is sent out To base station, the selection of carrier frequency is carried out by base station, V2X sending ending equipment can be issued in the present embodiment base station for realizing carrier frequency The relevant information of selection is known as carrier frequency selection auxiliary information.It certainly, can also be by V2X sending ending equipment and base station under the scene The selection of carrier frequency, such as V2X sending ending equipment are implemented in combination with (in combination with carrier frequency selection control information, it is also possible to not combine carrier frequency Selection control information) the carrier frequency selections of some steps is completed, the carrier frequency selection that other steps are completed in base station (is selected in combination with carrier frequency Select auxiliary information, it is also possible to carrier frequency not combined to select auxiliary information).Under the scene, V2X sending ending equipment also can be used similar The selection of carrier frequency selection control information realization carrier frequency is obtained when under RRC idle state from base station, at this time V2X sending ending equipment Carrier frequency selection control information can be obtained from base station by the proprietary signaling of RRC, certainly according to demand can also by other message (such as System message) it selects to control information from base station acquisition carrier frequency.
In the present embodiment, V2X sending ending equipment can select at least two loads from obtained effective candidate carrier frequencies set Transmission carrier frequency of the frequency as the V2X business datum.In this step, V2X sending ending equipment is from obtained effective candidate carrier frequencies collection Selected in conjunction at least two carrier frequency as the transmission carrier frequency of the V2X business datum before, can first judge whether V2X business datum needs It to be transmitted using multi-carrier frequency.
According to above-mentioned analysis it is found that in the present embodiment, the number for the carrier frequency being used for transmission may be by V2X sending ending equipment It determines, it is also possible to be determined by base station, then by the carrier frequency of V2X sending ending equipment selection respective numbers being used for transmission.
And it should be understood that can be when being transmitted using multiple carrier frequency to V2X business datum based on high data speed The demand of rate, can also be based on the demand of high reliability.When the demand based on high data rate, then overloading frequency can be used It is transmitted according to shunting (data split), when the demand based on high reliability, multi-carrier frequency Data duplication (data can be used Duplication it) transmits, certain two kinds of transmission modes can also be used in combination according to actual needs.When using multi-carrier frequency data point When flowing (data split) transmission, after determining at least two transmission carrier frequency of V2X business datum, it may also include determining that each biography The ratio of transmitted data on defeated carrier frequency, and can independently be determined by V2X sending ending equipment, it can also be determined by base station or V2X is sent End equipment joint base station determines together.
For example, in a kind of example, the carrier frequency selection information that V2X sending ending equipment utilizes include synchronous reference timing information, The channel busy ratio CBR threshold value (can be obtained from base station, can also be obtained from elsewhere) of V2X resource pool, V2X hair on carrier frequency The V2X that sending end equipment PC5 multi-carrier frequency transmitting capacity information and base station are sent to UE transmits carrier frequency set, and (what i.e. base station was sent is available At least one of in the carrier frequency list of transmission)；
At this point, V2X sending ending equipment is using carrier frequency selection information to ineligible in the initial candidate carrier frequency set Carrier frequency deletion may include but be not limited at least one of the following:
The carrier frequency of the asynchronous timing alignment in the initial candidate carrier frequency set is deleted using synchronous reference timing information It removes；
By in initial candidate carrier frequency set, the channel busy ratio CBR measured value of V2X resource pool is greater than the carrier frequency on carrier frequency The carrier frequency of the channel busy ratio CBR threshold value of upper V2X resource pool is deleted；
V2X sending ending equipment energy is selected from the initial candidate carrier frequency set according to PC5 multi-carrier frequency transmitting capacity information The carrier frequency of maximum quantity within the scope of power, and other carrier frequency extra in the initial candidate carrier frequency set are deleted；
The carrier frequency intersection that initial candidate carrier frequency set is sent to the V2X transmission carrier frequency set of UE with the base station is obtained, it will Carrier frequency except carrier frequency intersection described in the initial candidate carrier frequency set is deleted.
It should be understood that above-mentioned steps can be with flexible combination, and the sequential relationship between each step can also flexibly be set Fixed, to facilitate the understanding of the present invention, the present embodiment combines the carrier frequency obtained from base station selection separately below with V2X sending ending equipment Control information carries out carrier frequency selection example and does further in conjunction with a kind of combined application example of above steps to the present invention Explanation.
When V2X sending ending equipment combines the carrier frequency selection control information obtained from base station to carry out carrier frequency selection, relevant load Frequency selection control information can be what the extraction of V2X sending ending equipment was got from base station, be also possible to need in V2X sending ending equipment It is obtained in real time when wanting from base station.PC5 carrier frequency selecting method at this time is shown in Figure 2, comprising:
S201:V2X sending ending equipment is obtained according to the service identification and service identification of V2X business datum with carrier frequency mapping relations To the initial candidate carrier frequency set of V2X business datum.
V2X business datum in the step can be the data to be sent of V2X sending ending equipment high level generation, can also be with It is the data to be sent in other sources, and the V2X business datum can be one, be also possible to multiple.If it is multiple, then may be used For each V2X service message, all according to corresponding service identification and service identification and carrier frequency mapping relations to the V2X business The initial candidate carrier frequency set of message.
The V2X that S202:V2X sending ending equipment takes initial candidate carrier frequency set and base station to be sent to UE transmits carrier frequency set Carrier frequency intersection is as effective candidate carrier frequencies set.
At this point, carrier frequency selection information includes the V2X transmission carrier frequency set that base station is sent to UE, and the base station is sent to UE's V2X transmission carrier frequency set can be what V2X sending ending equipment obtained in advance or in real time from base station, be also possible to obtain from elsewhere It takes.Operation by this step can will not be that the V2X that base station is supported transmits carrier frequency rejecting in initial candidate carrier frequency set.
In this step, V2X sending ending equipment is likely to be at base station covering state, it is also possible in without covering state.When When V2X sending ending equipment is in without covering state, initial candidate carrier frequency set is sent to the V2X transmission carrier frequency set of UE with base station Carrier frequency intersection be sky, and UE does not detect suitable cell on the V2X carrier frequency of pre-configuration, and carrier frequency selects information at this time It further include for transmitting carrier frequency set without the V2X under covering；And this can be by preset without the V2X transmission carrier frequency set under covering Mode be set on V2X sending ending equipment.V2X sending ending equipment selects information from initial candidate carrier frequency collection using carrier frequency at this time The effective candidate carrier frequencies set of qualified carrier frequency composition is selected in conjunction just includes:
V2X sending ending equipment takes initial candidate carrier frequency set and without the V2X under covering when itself being in without covering state The carrier frequency intersection of carrier frequency set is transmitted as effective candidate carrier frequencies set, to carry out subsequent carrier frequency selection.
In addition, in the present embodiment, before executing above-mentioned S202, V2X business datum is mapped to by V2X sending ending equipment It is new for it if the V2X business datum does not have corresponding logic channel in mapping process on corresponding PC5 logic channel Establish a logic channel.Whether UE uses multicarrier data according to reliability step/demand estimation of V2X data Duplication mode is transmitted.If need to be transmitted using multicarrier data duplication mode, UE establishes multiple logic letters Road is used for transmission the data packet.UE can will be according to the service identification of the V2X business datum and service identification and carrier frequency mapping relations Obtain initial candidate carrier frequency set of the initial candidate carrier frequency collection as the PC5 logic channel.It can be then below single with logic channel Position carries out the management of candidate carrier frequencies set.But it is to be understood that the mapping logical channels step is optional step.And this implementation Specific mapping ruler can flexibly be set in example.
In the present embodiment, it takes intersection to carry out after further selecting carrier frequency by above-mentioned, can also pass through following screening side At least one of formula carries out further screening selection to the carrier frequency in effective candidate carrier frequencies set.And it should be understood that with The execution of lower carrier frequency screening process is all optional, and execution sequence has no stringent timing limitation, and each step executes sequence It is interchangeable, and can even execute parallel in some instances.
S203: by the channel busy ratio CBR measured value of V2X resource pool on each carrier frequency in effective candidate carrier frequencies set and Corresponding CBR measured value threshold value is screened, effective candidate carrier frequencies set after being screened.
The control information of carrier frequency selection at this time includes the channel busy ratio CBR threshold value of V2X resource pool on carrier frequency.This implementation In example, the V2X resource pool on carrier frequency can be obtained from base station, can also be obtained by being pre-configured in equipment.CBR threshold value It can obtain from base station, or be obtained by being pre-configured in equipment.And CBR threshold value can be one, or it is multiple, be Corresponding difference CBR can be arranged according to different types of service, service quality QoS information, carrier frequency or resource pool when multiple Limit value.When being screened then according to the corresponding type of service of current V2X business datum, service quality QoS information, carrier frequency or money Corresponding CBR threshold value is first selected in source pond, then recycle the threshold value and corresponding CBR measured value carry out carrier frequency into one Step screening.Service quality QoS information in the present embodiment includes but is not limited to packet priority PPPP, data rate data At least one of rate, data reliability reliability, Packet Delay budget packet delay budget.Example Such as, in a kind of example, the CBR threshold value obtained from base station includes but is not limited at least one of following example:
1) CBR threshold value；
2) CBR threshold value and corresponding priority；
3) CBR threshold value and corresponding data rate；
4) CBR threshold value and corresponding reliablility；
5) CBR threshold value and corresponding packet delay budget.
Screening process in this step includes:
V2X sending ending equipment obtains the channel busy ratio CBR of V2X resource pool on each carrier frequency in effective candidate carrier frequencies set Measured value；
By in effective candidate carrier frequencies set, the channel busy ratio CBR measured value of V2X resource pool is greater than the carrier frequency on carrier frequency The carrier frequency of the channel busy ratio CBR threshold value of upper V2X resource pool is deleted, namely thinks that this part carrier frequency cannot be used for transmitting, It is rejected from set；Remaining, thinking, which can be used for, transmits.
In the present embodiment, by effective candidate carrier frequencies set, the channel busy ratio CBR of V2X resource pool is surveyed on carrier frequency After the carrier frequency that magnitude is greater than the channel busy ratio CBR threshold value of V2X resource pool on the carrier frequency is deleted, it may also include following optional Step: remaining carrier frequency in effective candidate carrier frequencies set is measured according to the channel busy ratio CBR of V2X resource pool on each carrier frequency The sequence of value from small to large is arranged successively.Certainly, a kind of equivalent way can also be arranged using sequence from big to small, At this time select carrier frequency when then can sequence from back to front selected.
In the present embodiment, before executing above-mentioned S203, or later, V2X sending ending equipment is also fixed using synchronous reference When information filter out the carrier frequency of synchronization timing alignment from effective candidate carrier frequencies set, and by its in effective candidate carrier frequencies set He deletes carrier frequency.Carrier frequency selection information at this time then further includes synchronous reference timing information.Synchronous timing information includes following letter One of breath or combination: synchronous reference type, comprising: UE, GNSS, base station；Covering situation locating for synchronisation source, is used to indicate synchronisation source In covering or cover outer；The absolute timing value of synchronisation source.In a kind of example, synchronous reference type is selected by the physical layer of UE Synchronous reference type.
S204:V2X sending ending equipment is according to the PC5 multi-carrier frequency transmitting capacity information of itself from effective candidate carrier frequencies set The carrier frequency of the maximum quantity within the scope of self-ability is selected, and other carrier frequency extra in effective candidate carrier frequencies set are deleted It removes.
At this point, carrier frequency selection information just further includes the V2X sending ending equipment PC5 multi-carrier frequency transmitting capacity information.This reality Apply in example, PC5 multi-carrier frequency transmitting capacity information include support simultaneously carry out PC5 transmission frequency band combined information (may include support Carry out the maximum carrier frequency quantity of PC5 transmission and which carrier frequency can be used for carrying out PC5 transmission simultaneously simultaneously), at the same support PC5 and The frequency band combined information that Uu is sent (may include the maximum carrier frequency quantity and which carrier frequency for supporting while carrying out PC5 and Uu transmission At least one of can be used for carrying out PC5 and Uu transmission simultaneously) and transmission link Tx chain information.
V2X sending ending equipment (can be to be transmitted simultaneously using PC5 and Uu, still only adopted according to itself current working condition Transmitted with PC5) and/or transmission link Tx chain quantity determine the limit of power of itself, such as determine that itself is current most It supports 3 carrier frequency while carrying out PC5 transmission or PC5 and Uu transmission；Then self-ability is selected from effective candidate carrier frequencies set The carrier frequency of maximum quantity (such as 3) in range, and other carrier frequency are deleted.When PC5 multi-carrier frequency transmitting capacity information is specified It is specific using which carrier frequency when, select the carrier frequency of the maximum quantity within the scope of self-ability from effective candidate carrier frequencies set When, it also needs to select these specified carrier frequency.It should be understood that in the present embodiment final choice to carrier frequency number be less than In the maximum quantity within the scope of V2X sending ending equipment self-ability.
S205:V2X sending ending equipment judges whether V2X business datum uses multi-carrier frequency to transmit.
It should be understood that judging whether V2X business datum uses multi-carrier frequency transmission that can walk in front in the present embodiment It executes, such as can be executed in step S202, or execute in other steps or before in rapid either step or before.
In the present embodiment, V2X sending ending equipment judge V2X business datum whether use multi-carrier frequency transmission can use with Any one in lower judgment mode:
One: V2X sending ending equipment of mode is sentenced according to the configured transmission of V2X business datum with corresponding configured transmission threshold value Whether disconnected V2X business datum uses multi-carrier frequency to transmit.
Two: V2X sending ending equipment of mode is according to the configured transmission of the V2X business datum and corresponding carrier frequency scalar mapping Relationship judges whether V2X business datum uses multi-carrier frequency to transmit.
Configured transmission includes at least one of buffer area data volume buffer size and service quality QoS information, this reality Applying the service quality QoS information in example includes but is not limited to that packet priority PPPP, data rate data rate, data can By at least one of property reliability, Packet Delay budget packet delay budget.And it should be understood that Each configured transmission in the present embodiment flexibly can be selected and be combined.
For example, the configured transmission threshold value used includes but is not limited to lower threshold when being judged using aforesaid way one At least one of:
1) packet priority PPPP threshold value, for example, not making if the PPPP value of data packet is greater than priority threshold value With PC5 multi-carrier frequency (CA) function；If the PPPP value of data packet is less than priority threshold value, PC5CA function may be used, including At least one of data split and data duplication；
2) buffer size threshold value；
3) data rate threshold value；
4) delay budget threshold value；
5) reliability threshold value；
6) reliability and delay budget threshold value；
7) buffer size and delay budget threshold value.
Corresponding, employing mode for the moment, can use any one or a few threshold value of above-mentioned example, corresponding neighbouring Service data packet priority PPPP value, buffer size value, data rate value, packet delay budget value, One or more of reliability value (can specifically be characterized by reliability class information) and corresponding threshold value ratio To.
Above-mentioned threshold value in the present embodiment can be obtained from base station, and can specifically pass through system message or RRC special instruction It obtains.Certainly it can also be obtained by other approach, such as be realized by modes such as pre-configurations.And should be understood that it is above-mentioned show it is several Kind threshold value is only a kind of example, according to actual needs can be with flexible expansion or combination.
When being judged using aforesaid way two, configured transmission includes but is not limited to following with corresponding carrier frequency scalar mapping relationship At least one of example:
1) buffer size range and corresponding carrier frequency quantity；
2) data rate range and corresponding carrier frequency quantity；
3) reliability range and corresponding carrier frequency quantity；
4) packet delay budget range and buffer size range and corresponding carrier frequency quantity；
5) priority and corresponding carrier frequency quantity, concretely PPPP value or the corresponding carrier frequency number of PPPP value range.
It is corresponding, when employing mode two, any one or a few mapping relations of above-mentioned example, corresponding number can be used According to packet priority PPPP value, buffer size value, data rate value, packet delay budget value, reliability One or more of value, and bring into and can match corresponding carrier frequency quantity with correspondence mappings relationship, according to the load matched Frequency amount determines the need for transmitting using multi-carrier frequency, such as when the carrier frequency quantity matched is 1, then shows not need using more Carrier transmission is the integer value more than or equal to 2 when matching the carrier frequency quantity come, then demonstrates the need for being transmitted using multi-carrier frequency.
Above-mentioned mapping relations in the present embodiment can also be obtained from base station, and specifically can be dedicated by system message or RRC Instruction obtains.Certainly it can also be obtained by other approach, such as be realized by modes such as pre-configurations.And it should be understood that above-mentioned Show that several mapping relations are also only a kind of example, it according to actual needs can be with flexible expansion or combination.
S206: above-mentioned S205 determines when needing using multi-carrier frequency transmission, from above-mentioned effective candidate carrier frequencies set selection to Few transmission carrier frequency of two carrier frequency as V2X business datum；The selection course includes:
If S205 be using aforesaid way two judge when, can judge whether using multi-carrier frequency transmit while acquisition To the carrier frequency quantity that need to be used.It, then can be according to the configured transmission of V2X sending ending equipment when being judged using aforesaid way two Determine the carrier frequency quantity that V2X business data transmission need to use with corresponding carrier frequency scalar mapping relationship, specific determination process referring to Shown in mode two in above-mentioned S205；Then corresponding number is selected from effective candidate carrier frequencies set according to determining carrier frequency quantity Transmission carrier frequency of the carrier frequency as V2X business datum.It in one example, can be according to effective candidate carrier frequencies when selecting carrier frequency The sequence of the CBR measured value of each carrier frequency from small to large is selected in set.
In the present embodiment, optionally, the CBR measurement result variation in each carrier frequency resource pond leads to effective candidate carrier frequencies set In carrier frequency sequence change after, subsequent carrier frequency selection can be carried out according to the carrier frequency list of update immediately, or can preset Subsequent carrier frequency selection is carried out further according to effective candidate carrier frequencies set of update after period.When available frequency point sets change, It, then can be immediately according to effective candidate carrier frequencies set of update (i.e. available frequency point sets and carrier frequency sequence) such as newly-increased and/or deletion Carry out subsequent carrier frequency selection.
In embodiment, select at least two carrier frequency as V2X business datum from above-mentioned effective candidate carrier frequencies set Following manner also can be used in transmission carrier frequency:
First a carrier frequency is selected to transmit the V2X business datum in effective candidate carrier frequencies set, it can be according to The sequence of the CBR measured value of each carrier frequency from small to large is selected in effective candidate carrier frequencies set；
(specifically sentenced according to the transmission demand whether carrier frequency for monitoring the selection of sensing result judgement meets V2X business datum Disconnected mode can be with flexible choice), if not, selecting a carrier frequency to carry out the V2X business datum again from effective candidate carrier frequencies set Then whether transmission meets the transmission demand of V2X business datum, weight further according to the carrier frequency for monitoring the selection of sensing result judgement The multiple above process, until the carrier frequency number of selection meets the transmission demand of V2X business datum.
In the present embodiment, when the demand based on high data rate transmits V2X business datum using multiple carrier frequency When, after determining at least two transmission carrier frequency of V2X business datum, it may also include determining that transmitted data on each transmission carrier frequency Ratio.When V2X sending ending equipment is in RRC idle or RRC connection status, can independently be determined by V2X sending ending equipment each Transmit the ratio of transmitted data on carrier frequency；When V2X sending ending equipment is in RRC connection status, can be set by V2X transmitting terminal It is standby autonomous determining, it can also be determined by base station.Size can be obtained according to the CBR measured value of resource pool on each carrier frequency when for example, determining, The setting of the factors such as the data package size for needing to transmit；It can be transmitted in resource on carrier frequency lesser for CBR measured value more Data, relatively small number of data can be transmitted in the resource on the biggish carrier frequency of CBR measured value.By V2X sending ending equipment When autonomous determining, V2X sending ending equipment is also determined in combination with above-mentioned parameter, may also be combined with the data for specifically needing to transmit The factors such as type are determined.
As above shown in analysis, when V2X sending ending equipment is in RRC connection status, V2X sending ending equipment is utilizing carrier frequency It selects information before selecting qualified carrier frequency in initial candidate carrier frequency set, can also send corresponding carrier frequency to base station Auxiliary information is selected to carry out the relevant treatment of carrier frequency selection in order to base station, the carrier frequency selection sent in the present embodiment to base station is auxiliary Supplementary information includes but is not limited to:
Logic Channel Identifier；Logic channel group mark；Target identification or target call number；QoS information；Carrier frequency quantity；It is more Carrier frequency indicates information；Wherein multi-carrier frequency instruction information is used to indicate whether to transmit using multi-carrier frequency, or whether uses multi-carrier frequency Whether data split transmission is perhaps transmitted using multi-carrier frequency data duplication or whether uses multi-carrier frequency data Split and data duplication transmission；V2X carrier frequency；
Synchronous timing information；
Wherein, synchronous timing information includes following one or combination:
Synchronous reference type, comprising: UE, GNSS, base station；
Covering situation locating for synchronisation source is used to indicate synchronisation source in covering or covers outer；
The absolute timing value of synchronisation source.
Wherein, above-mentioned logic channel ID, logic channel group mark, target identification or target call number are all above-mentioned V2X industry Corresponding to data of being engaged in.
Above example is that V2X sending ending equipment combines the carrier frequency selection control information obtained from base station to carry out carrier frequency selection Example is illustrated.By above-mentioned carrier frequency selection mode, when V2X sender needs to send V2X business number using multiple carrier frequency According to when, V2X sending ending equipment can obtain described according to the service identification and service identification of V2X business datum and carrier frequency mapping relations The initial candidate carrier frequency set of V2X business datum, and symbol is selected from initial candidate carrier frequency set using carrier frequency selection information The carrier frequency of conjunction condition forms effective candidate carrier frequencies set, and then selection at least two carries from obtained effective candidate carrier frequencies set Frequency is as the transmission carrier frequency of V2X business datum to be transmitted to V2X business datum, it can be achieved that reliable, effective choosing of multi-carrier frequency It selects and matches.
Embodiment two:
In order to better understand the present invention, the carrier frequency selection auxiliary letter for combining V2X sending ending equipment to send with base station below Breath progress carrier frequency is selected as example and is illustrated.At this point, V2X sending ending equipment is in RRC connection status, and mode can be used in it 4 mode of 3 modes or mode, carrier frequency selection auxiliary information includes the corresponding configured transmission of V2X business datum, transmission ginseng at this time Number includes at least one of buffer area data volume buffer size and service quality QoS information.In the present embodiment, V2X business The corresponding service quality QoS information of data can be using Logic Channel Identifier and corresponding QoS information or target identification and right QoS information or logic channel the group mark answered and corresponding QoS information are characterized.
It optionally, only include a variety of in PC5 signaling if the V2X data of the same Target id include a variety of QoS demands Highest QoS demand information in QoS demand；It, should if the same logic channel group can be used for transmitting the data of a variety of QoS demands Only comprising highest QoS demand information in a variety of QoS demands in PC5 signaling.
At this point, V2X sending ending equipment using carrier frequency selection information selected from initial candidate carrier frequency set it is eligible Carrier frequency form effective candidate carrier frequencies set and include:
Send RRC information (for example including but be not limited to sidelink UE information message) to base station, RRC disappears Breath includes that carrier frequency selects auxiliary information, and it includes initial candidate carrier frequency set that carrier frequency, which selects auxiliary information,；
Message, which is set, according to the RRC connection reconfiguration received from base station obtains effective candidate carrier frequencies set.
Corresponding, shown in Figure 3, base station side then executes following steps:
S301: it receives the carrier frequency that V2X sending ending equipment is sent and selects auxiliary information, the carrier frequency selection auxiliary information includes The initial time of the V2X business datum is obtained according to the service identification of V2X business datum and service identification and carrier frequency mapping relations Select carrier frequency set.
Base station specifically can receive the RRC information that V2X sending ending equipment is sent, and RRC information includes carrier frequency selection auxiliary information, Carrier frequency selection auxiliary information includes obtaining V2X according to the service identification and service identification and carrier frequency mapping relations of V2X business datum The initial candidate carrier frequency set of business datum；
S302: carrier frequency selection control information is sent to V2X sending ending equipment.
Specifically RRC connection reconfiguration can be sent to V2X sending ending equipment and set message, RRC connection reconfiguration set message include will be first Effective candidate carrier frequencies set that ineligible carrier frequency obtains after deleting in beginning candidate carrier frequencies set.
In the present embodiment, the carrier frequency selection auxiliary information that base station receives may include synchronous reference timing information, V2X At least one of PC5 multi-carrier frequency transmitting capacity information of sending ending equipment, the RRC that base station is sent to V2X sending ending equipment connect Connecing reconfiguration message includes effective candidate carrier frequencies set, effective candidate carrier frequencies collection be combined into base station to initial candidate carrier frequency set into It is obtained after the following at least one processing of row:
The carrier frequency of the asynchronous timing alignment in initial candidate carrier frequency set is deleted using synchronous reference timing information；
By in initial candidate carrier frequency set, the channel busy ratio CBR measured value of V2X resource pool is greater than the carrier frequency on carrier frequency The carrier frequency of the channel busy ratio CBR threshold value of upper V2X resource pool is deleted；
V2X sending ending equipment ability model is selected from initial candidate carrier frequency set according to PC5 multi-carrier frequency transmitting capacity information The carrier frequency of maximum quantity in enclosing, and other carrier frequency extra in initial candidate carrier frequency set are deleted；
The carrier frequency intersection for obtaining initial candidate carrier frequency set with the V2X transmission carrier frequency set for being handed down to UE, by initial candidate Carrier frequency in carrier frequency set except carrier frequency intersection is deleted.
Referring to the analysis of above-described embodiment one, above-mentioned steps can also be with flexible combination, and timing can also flexibly change.
In a kind of example, the carrier frequency selection auxiliary information that V2X sending ending equipment issues base station further includes V2X business datum Corresponding configured transmission；Configured transmission includes at least one in buffer area data volume buffer size and service quality QoS information Kind, service quality QoS information includes adjacent service packet priority PPPP, data rate data rate, data reliability At least one of reliability, Packet Delay budget packet delay budget；
Base station can also generate the carrier frequency such as multi-carrier frequency transmission instruction information, carrier frequency quantity configuration information according to above-mentioned parameter and select At least one of information is controlled, and generating mode can be found in what above-mentioned V2X sending ending equipment was judged based on these parameters Mode.It includes carrier configuration information that the RRC connection reconfiguration that base station issues at this time, which sets message, and carrier configuration information includes that multi-carrier frequency passes At least one of defeated instruction information, the carrier frequency selection control information such as carrier frequency quantity configuration information may also include in example in one Carrier frequency data distribution proportional arrangement information.
In the present embodiment, the RRC connection reconfiguration that V2X sending ending equipment is received from base station sets message and may also include resource Allocation model indicates that information, resource allocation mode indicate that information instruction V2X sending ending equipment uses mode3 mode or mode4 Mode.
In the present embodiment, when the carrier configuration information of base station feedback includes multi-carrier frequency transmission instruction information, V2X transmitting terminal Equipment judges whether V2X business datum uses multi-carrier frequency to transmit can include: V2X sending ending equipment judges that RRC connection reconfiguration is set and disappears When in breath comprising multi-carrier frequency transmission instruction information, judge whether V2X business datum uses multi-carrier frequency to transmit.
When the carrier configuration information of base station feedback includes carrier frequency quantity configuration information, selected from effective candidate carrier frequencies set At least two carrier frequency include: that V2X sending ending equipment is set in message from RRC connection reconfiguration as the transmission carrier frequency of V2X business datum Obtain carrier frequency quantity configuration information；
V2X sending ending equipment selects the load of corresponding number according to carrier frequency quantity configuration information from effective candidate carrier frequencies set Transmission carrier frequency of the frequency as V2X business datum.In one example, V2X sending ending equipment is according in effective candidate carrier frequencies set The ascending sequential selection of the CBR measured value of each carrier frequency.
When the carrier configuration information of base station feedback includes carrier frequency data distribution proportional arrangement information, V2X sending ending equipment from After selecting transmission carrier frequency of at least two carrier frequency as the V2X business datum in effective candidate carrier frequencies set, further includes: according to Carrier frequency data distribution proportional arrangement information determines the data volume size that each carrier frequency of selection need to transmit.
As it can be seen that in the present embodiment, the carrier frequency selection auxiliary information that V2X sending ending equipment is sent to base station includes following letter Breath is at least one:
Logic Channel Identifier；Logic channel group mark；Target identification or target call number；QoS information；Carrier frequency quantity；It is more Carrier frequency indicates information；Wherein multi-carrier frequency instruction information is used to indicate whether to transmit using multi-carrier frequency, or whether uses multi-carrier frequency Whether data split transmission is perhaps transmitted using multi-carrier frequency data duplication or whether uses multi-carrier frequency data Split and data duplication transmission；V2X carrier frequency (such as above-mentioned initial candidate carrier frequency set)；
Synchronous timing information；
Wherein, synchronous timing information includes following one or combination:
Synchronous reference type, comprising: UE, GNSS, base station；
Covering situation locating for synchronisation source is used to indicate synchronisation source in covering or covers outer；
The absolute timing value of synchronisation source.
The carrier frequency selection control information that base station is sent to V2X sending ending equipment includes at least one of following information:
Base station can send carrier frequency selection control information, carrier frequency selection control to UE by system message or the proprietary signaling of RRC Information includes following one or combination:
1. carrier frequency list:
1) according to effective candidate carrier frequencies set (available carrier frequencies list can also be claimed) after the screening of CBR result；
2) according to effective candidate carrier frequencies set of CBR sort result；
2. carrier frequency quantity (the carrier frequency quantity or workable maximum carrier frequency quantity that need to use)；
3. Logic Channel Identifier；4. logic channel group identifies；5. target identification or target call number；
6. multi-carrier frequency indicates information, it is used to indicate whether to transmit using multi-carrier frequency；7. the data distribution ratio of carrier frequency；8. money Source pond information；
9. being used to determine whether to transmit using PC5 multi-carrier frequency:
1) priority threshold value, for example, not using PC5CA function if the PPPP value of data packet is greater than priority threshold value Energy；If the PPPP value of data packet is less than priority threshold value, PC5CA function, including data split, data may be used duplication；
2) buffer size threshold value；3) data rate threshold value；4) delay budget threshold value；5) Reliability threshold value；6) reliability and delay budget threshold value；7) buffer size and delay Budget threshold value；
10. being used to determine whether the information using PC5 multi-carrier frequency and/or carrier frequency quantity:
1) buffer size range and corresponding carrier frequency quantity；
2) data rate range and corresponding carrier frequency quantity；
3) reliability range and corresponding carrier frequency quantity；
4) packet delay budget range and buffer size range and corresponding carrier frequency quantity；
5) priority and corresponding carrier frequency quantity, can be the corresponding carrier frequency number of PPPP value/range；
11. for determining whether carrier frequency is alternatively used for the information of transmission:
1) CBR threshold value；2) CBR threshold value and corresponding priority；3) CBR threshold value and corresponding data rate；4) CBR threshold value and corresponding reliablility；5) CBR threshold value and corresponding packet delay budget.
The present embodiment additionally provides a kind of V2X business datum sending method, shown in Figure 3, comprising:
The scheme provided through this embodiment, when V2X sender needs to send V2X business datum using multiple carrier frequency, V2X Sending ending equipment can obtain the V2X business according to the service identification and service identification and carrier frequency mapping relations of V2X business datum The initial candidate carrier frequency set of data, and using carrier frequency selection information selected from initial candidate carrier frequency set it is qualified Carrier frequency forms effective candidate carrier frequencies set, then selected from obtained effective candidate carrier frequencies set at least two carrier frequency as The transmission carrier frequency of V2X business datum to be transmitted to V2X business datum, it can be achieved that multi-carrier frequency it is reliable, effective selection and Match.
Embodiment three:
A kind of PC5 carrier frequency selection device is present embodiments provided, which may be disposed at V2X transmitting terminal In equipment, and the function of its each module for including can be realized by the processor of V2X sending ending equipment.Shown in Figure 4, PC5 is carried Frequency selection device includes:
Initial selected module 401, for the service identification and service identification and carrier frequency mapping relations according to V2X business datum Obtain the initial candidate carrier frequency set of the V2X business datum.
Carrier frequency determining module 402, for for selecting information to select from the initial candidate carrier frequency set according to carrier frequency The transmission carrier frequency of the V2X business datum；Specific choice mode is referring to selection mode shown in above-described embodiment one kind, herein not It repeats again.
The present embodiment has also mentioned a kind of V2X sending ending equipment, which may be car-mounted terminal, it is also possible to It is user terminal, and the V2X sending ending equipment is also used as receiving device simultaneously.It is shown in Figure 5, the V2X hair in the present embodiment Sending end equipment includes first processor 501, first memory 502 and the first communication bus 503；
First communication bus 503 is for realizing the connection communication between first processor 501 and first memory 502；
First processor 501 is for executing one or more first program stored in first memory 502, to realize The step of PC5 carrier frequency selecting method as described in embodiment one.
The present embodiment additionally provides a kind of computer storage medium, the computer-readable recording medium storage have one or Multiple first programs, one or more of first programs are executed by one or more processor, to realize such as embodiment Described in one the step of PC5 carrier frequency selecting method.
Embodiment also provides the PC5 carrier frequency selection device that a kind of can be set on base station, shown in Figure 6, comprising:
Information receiving module 601, the carrier frequency for receiving the transmission of V2X sending ending equipment select auxiliary information, the carrier frequency Selection auxiliary information includes obtaining the V2X according to the service identification and service identification and carrier frequency mapping relations of V2X business datum The initial candidate carrier frequency set of business datum.
Configuration processing module 602, for sending carrier frequency selection control information to the V2X sending ending equipment；It specifically can be to V2X sending ending equipment sends RRC connection reconfiguration and sets message, and it includes by initial candidate carrier frequency set which, which sets message, In ineligible carrier frequency delete after obtained effective candidate carrier frequencies set.Configuration processing module 602 utilizes carrier frequency selection letter Breath selects the mode of qualified carrier frequency referring to selection shown in above-described embodiment one kind from initial candidate carrier frequency set Mode, details are not described herein.
The present embodiment has also mentioned a kind of base station.It is shown in Figure 7, the base station in the present embodiment include second processor 701, Second memory 702 and the second communication bus 703；
Second communication bus 703 is for realizing the connection communication between second processor 701 and second memory 702；
Second processor 701 is for executing one or more second program stored in second memory 702, to realize The step of PC7 carrier frequency selecting method as described in embodiment two.
The present embodiment additionally provides a kind of computer storage medium, the computer-readable recording medium storage have one or Multiple programs, one or more of programs are executed by one or more processor, to realize such as embodiment one or implement Described in example two the step of PC7 carrier frequency selecting method.
To facilitate the understanding of the present invention, the present embodiment is UE as example using V2X sending ending equipment, is in the RRC free time with UE State is simultaneously illustrated using mode 4.
The transmission carrier frequency selecting method of the mode 4UE of RRC Idle state is shown in Figure 8, comprising:
After S801:UE high level generates V2X message (i.e. V2X business datum namely V2X data packet), disappear for each V2X The high level of breath, UE obtains candidate carrier frequencies according to the mapping relations between the service identification and service identification and carrier frequency of the V2X message Gather 1 (i.e. initial candidate carrier frequency set), and is sent to AS layers.
Optionally, it can be carried simultaneously when each V2X message is transmitted to AS (Access Stratum) layer of UE by UE high level At least one of: its corresponding service identification, target identification, priority (PPPP), (V2X containing one or more of carrier frequency set 1 Carry frequency point information).
S802: optional, when each V2X message reaches AS layers, the AS layer of UE will according to the service related information of V2X message It is mapped to corresponding PC5 logic channel.
If the V2X message does not have corresponding logic channel, new logic channel is established.Service related information be it is following it One or combination: V2X service identification, target identification, PPPP priority, reliability demand, data rate demand, packet delay budget.For example, the V2X message that service identification is 1 and priority is 1 is mapped to logic channel 1, service identification 1 And the V2X message that priority is 2 is mapped to logic channel 2.
In this step, if UE receives mapping relations between PPPP and reliability demand from base station or UE is logical It crosses pre-configuration mode and obtains mapping relations between PPPP and reliability demand or UE from V2X control Function or V2X application server obtains the mapping relations between PPPP and reliability demand, then UE Data packet can be calculated according to the mapping relations between PPPP, PPPP and the reliability demand of data packet Reliability demand.Alternatively, UE can obtain V2X message and its corresponding reliability demand from high level.Optionally, UE Multi-carrier frequency data duplication mode whether can be used to transmit according to the reliability demand estimation of data packet.UE can It according to pre-configuration, or obtains from V2X control function or V2X application server, or from base station The reliability threshold value of acquisition, the reliability demand that will acquire are compared with the reliability threshold value； Or the mapping relations between reliability range of needs and carrier frequency quantity are obtained from base station, the reliability that will acquire is needed The mapping relations between reliability range of needs and carrier frequency quantity are asked to be matched；To judge whether using overloading Frequency data duplication mode is transmitted.Optionally, if need to be transmitted using multi-carrier frequency data duplication mode, UE It establishes multiple logic channels and is used for transmission the data packet.Herein judgement need using multi-carrier frequency transmitted when, behind can be no longer It is made whether to need to carry out multi-carrier frequency transmission.When not executing the deterministic process herein, behind can then carry out multi-carrier frequency transmission judgement.
S803:UE is that each PC5 logic channel (or each V2X data packet) determines its corresponding candidate carrier frequencies set.
For example, determining its corresponding candidate carrier frequencies set 1 according to the corresponding carrier frequency set of V2X message obtained from high level. Optionally, the intersection with candidate carrier frequencies set 1 is obtained according to the V2X carrier frequency set that base station is supported AS layers, using the intersection as time Select carrier frequency set 2.Optionally, if V2X carrier frequency set and candidate carrier frequencies set 1 that base station is supported do not have intersection, and UE Suitable cell is not detected on the V2X carrier frequency of interior pre-configuration, then UE thinks senior in no covering state, carries according to candidate Frequency gathers 1 and what is be pre-configured carries out subsequent carrier frequency for obtaining candidate carrier frequencies set 2 without the intersection between the V2X carrier frequency under covering Selection.
S804: optional, UE is according to the synchronous reference timing cases on carrier frequency where resource pool, from candidate carrier frequencies set 2 In filter out multiple carrier frequency of synchronization timing alignment, and carrier frequency other in candidate carrier frequencies set 2 are deleted., form candidate carry Frequency set 3.Synchronous reference timing cases include one of following information or combination: synchronous reference type, and synchronisation source is locating to cover shape Condition (in covering or covering is outer)；The absolute timing value of synchronisation source.Wherein synchronous reference type is the selected synchronization of physical layer of UE Reftype.The step can not also execute.
S805:UE executes CBR measurement (no to the resource pool of V2X carrier frequency in candidate carrier frequencies set 2 or candidate carrier frequencies set 3 When executing S804 step), alternatively, V2X resource pool executes in multiple carrier frequency that UE is aligned synchronization timing in candidate carrier frequencies set 2 CBR measurement.
Specifically, UE can obtain the V2X resource pool information in candidate carrier frequencies from base station by system message, or by pre- The mode of configuration obtains the resource pool information in candidate carrier frequencies.UE can be obtained from base station for judging that V2X is provided by system message Whether carrier frequency where the pond of source, which can be used for one or more CBR threshold values of PC5 transmission or UE, to be obtained by way of pre-configuration It must be used to judge the one or more CBR threshold values whether carrier frequency where V2X resource pool can be used for transmitting.Further, UE is obtained Configuration information can also be multiple CBR threshold values respectively with different QoS parameter or V2X type of service or carrier frequency or resource pool It is corresponding.Specifically, qos parameter can be one of the following or combine: priority, data rate, reliability, packet delay budget.For example, UE determines that the logic channel is corresponding according to the corresponding type of service of logic channel or qos parameter CBR threshold value, for judging whether V2X carrier frequency can be used for the transmission of the logical channel data.Specifically, UE is according on each carrier frequency The CBR measurement result of V2X resource pool judges whether carrier frequency where the resource pool of the measurement can be used for transmitting, for example, if the resource The CBR measurement result in pond is higher than corresponding CBR threshold value, then UE thinks that the carrier frequency is not useable for transmitting；If the CBR of the resource pool Measurement result is lower than corresponding CBR threshold value, then UE thinks that the carrier frequency can be used for transmitting.UE is according to above-mentioned to candidate carrier frequencies set 2 or candidate carrier frequencies set 3 in the CBR measurement process of resource pool of V2X carrier frequency filter out candidate carrier frequencies set 4, i.e., will be unavailable It is excluded in the carrier frequency of transmission.Optionally, 4 intermediate-frequeney point of candidate carrier frequencies set is ranked up by UE according to the CBR measured value of each frequency point, For example, then the smallest frequency point of CBR measured value makes number one, according to this class by carrier frequency according to the ascending sequence of CBR measured value It pushes away.
S806:UE is according to itself PC5CA ability information from select in candidate carrier frequencies set 4 can be simultaneously in UE limit of power The carrier frequency transmitted forms candidate carrier frequencies set 5.
Specifically, UE is according to itself PC5CA transmitting capacity information from select in candidate carrier frequencies set 4 can in UE limit of power Candidate carrier frequencies set 5 is formed to carry out the carrier frequency of most quantity of PC5 transmission simultaneously.Specifically, the PC5CA transmitting capacity of UE is believed Breath includes following one or combination: 1) carrying out the frequency band combination band combination information of PC5 transmission simultaneously；2) simultaneously into The frequency band band combination information of row PC5/Uu transmission；3) transmission link Txchain quantity.
The AS layer of S807:UE determines the need for transmitting using multi-carrier frequency, and determines the carrier frequency being used for transmission when needed Quantity simultaneously selects the carrier frequency set being used for transmission from candidate carrier frequencies set 5.
In this example, the AS layer of UE can determine the need for using multi-carrier frequency with data according to one of following information or combination Split and/or data duplication mode carries out PC5 data transmission.If desired, then it further determines that required to transmission Carrier frequency quantity simultaneously selects the carrier frequency set being used for transmission from candidate carrier frequencies set 5:
1) the reliability demand of data packet, it is high-rise to AS layers of transmitting data packet when can carry data packet simultaneously Reliability demand information.Alternatively, UE can obtain the mapping relations of PPPP Yu reliability demand from base station, or pass through The mapping relations for obtaining PPPP and reliability demand are pre-configured, and map to obtain according to the PPPP value of data packet Reliability demand.Alternatively, can define new PC5QoS parameter, it is high-rise to AS layers of transmitting data packet when can carry number simultaneously According to the qos parameter of packet, UE can derive the reliability demand of the data packet according to the qos parameter of the new definition；
2) reliability threshold value,
3) reliability range and corresponding carrier frequency quantity；
4) the packet delay budget of data packet；Data packet can be carried simultaneously when high level is to AS layers of transmitting data packet Packet delay budget demand information.Alternatively, UE can get reflecting for PPPP and packet delay budget demand Relationship is penetrated, and is mapped to obtain packet delay budget demand according to the PPPP value of data packet.UE can obtain PPPP from base station With the mapping relations of packet delay budget demand, or obtained by pre-configuration mode；
5) packet delay budget threshold value；
6) packet delay budget range and corresponding carrier frequency quantity；
7) the priority priority of data packet；The preferential of data packet can be carried simultaneously when high level is to AS layers of transmitting data packet Grade information, priority can be indicated by PPPP value.
8) priority threshold value；
9) priority and corresponding carrier frequency quantity；
10) the data rate demand of data packet；High level to AS layers transmit data packet when can carry the data of data packet simultaneously Rate demand information.Alternatively, UE can obtain the mapping relations of PPPP Yu data rate demand from base station, or obtained by being pre-configured The mapping relations of PPPP and data rate demand are obtained, and are mapped to obtain data rate demand according to the PPPP value of data packet.Or Person, can define new PC5QoS parameter, it is high-rise to AS layer transmitting data packet when can carry the qos parameter of data packet simultaneously, UE can The data rate demand of the data packet is derived according to the qos parameter of the new definition；
11) data rate threshold value；
12) data rate range and corresponding carrier frequency quantity；
13) current buffer data volume buffer size；
14) buffer size threshold value；
15) buffer size range and corresponding carrier frequency quantity；
16) packet delay budget range and buffer size range and corresponding carrier frequency quantity；
Optionally, UE can determine the need for using multi-carrier frequency with data split and/or data by the following method Duplication mode carries out PC5 data transmission:
For example, if UE receives priority threshold value information from base station, UE according to the priority of data to be transmitted with it is excellent First grade threshold information judges whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.For example, being taken to the priority for transmitting data It is worth (e.g., PPPP) and is less than configured priority threshold value, multi-carrier frequency may be used and carry out the transmission of PC5 data.
If UE receives Data rate threshold information from base station, UE is according to the Data rate demands of data to be transmitted Judge whether that multi-carrier frequency can be used to carry out the transmission of PC5 data with Data rate threshold information.For example, to transmission data Data rate demand is greater than configured Data rate threshold value, and multi-carrier frequency may be used and carry out the transmission of PC5 data.
If UE receives Buffer size threshold information from base station, UE is according to the buffer of current logic channel Size size and Buffer size threshold information judge whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.For example, if working as The buffer size of preceding logic channel is greater than configured Buffer size threshold value, and multi-carrier frequency may be used and carry out PC5 number According to transmission.
If UE receives reliability threshold information from base station, UE is according to the reliability that need to transmit data Demand and reliability threshold information judge whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.For example, if needing to transmit The reliability demand of data is higher than configured reliability threshold value, and multi-carrier frequency may be used and carry out PC5 data Transmission.
If UE receives packet delay budget threshold information from base station, UE is according to need to transmit data Packet delay budget and packet delay budget threshold information judge whether that multi-carrier frequency can be used to carry out PC5 Data transmission.For example, if the packet delay budget that need to transmit data is less than configured packet delay Budget threshold value may be used multi-carrier frequency and carry out the transmission of PC5 data.
In the present embodiment, determines the carrier frequency quantity being used for transmission and select the load being used for transmission from candidate carrier frequencies set 5 Frequency set may refer to following several examples.
Example 1: judged according to packet delay budget and buffer size
UE can be selected in candidate carrier frequencies set 5 first according to the carrier frequency list sorted in S806 according to CBR measurement result The carrier frequency 1 of sequence first, if judging that available resources can meet in delay in the resource pool on the carrier frequency according to sensing result Data transfer demands in buffer in budget then only use the carrier frequency 1 and carry out data transmission；If not being able to satisfy, continue to add The carrier frequency 2 of sequence the 2nd is added to be used for transmission, if judging that available resources can in the resource pool on carrier frequency 1 and 2 according to sensing result Meet the data transfer demands in buffer in delay budget, is then carried out data transmission using the carrier frequency 1 and carrier frequency 2；If It is not able to satisfy, then continues to execute carrier frequency selection, add the carrier frequency 3 of sequence the 3rd, subsequent operation is similar to the above.
Example 2: according to the buffer size range of configuration and packet delay budget and corresponding carrier frequency quantity Judgement
UE obtains the mapping relations of buffer size range and packet delay budget and carrier frequency quantity from base station. Carrier frequency quantity that UE need to be used according to current buffer size size and packet delay budget determination is simultaneously carried in candidate The carrier frequency being used for transmission is selected in frequency set 5.For example, base station can configure buffer size200-400 byte, packet for UE Delay budget is that the corresponding carrier frequency quantity of 50ms is 2, buffer size200-400 byte, packet delay Budget is that the corresponding carrier frequency quantity of 100ms is 1.Under the sample situation, UE need to the hair of the range locating for each buffer size The carrier frequency quantity that need to be used is redefined after changing, and selects in candidate carrier frequencies set 5 carrier frequency being used for transmission.Then V2X resource pool executes resource selection process to UE in the selected carrier frequency being used for transmission respectively, to select the tool being used for transmission The time-frequency domain resources of body.
Example 3: judged according to the buffer size range of configuration with corresponding carrier frequency quantity
Base station can configure workable carrier frequency quantity corresponding to buffer size range for UE or UE can be by pre- Configuration mode obtains.UE determines the logic channel need according to the buffer size size and the mapping relations of current logic channel The carrier frequency quantity used.For example, buffer size is if being configured to buffer size is 0-200 byte corresponding 1 carrier frequency 200-400 byte corresponds to 2 carrier frequency, if then the buffer size of current logic channel is 350 bytes, UE determination need to use 2 A carrier frequency is transmitted.Under the sample situation, once range locating for the buffer size of logic channel is heavy after changing The carrier frequency quantity that new determination need to use, and select in candidate carrier frequencies set 5 carrier frequency being used for transmission.Then UE is respectively selected V2X resource pool executes resource selection process in the carrier frequency being used for transmission selected, to select the specific time-frequency domain being used for transmission money Source.
Example 4: judged according to the data rate range of configuration with corresponding carrier frequency quantity
Base station can configure the mapping relations between data rate range and carrier frequency quantity for UE.UE is according to the V2X that need to be transmitted The carrier frequency quantity that the data rate demand of data and the mapping relations determination need to use.UE selects to use in candidate carrier frequencies set 5 In the carrier frequency of transmission.High level to AS layers transmit data packet when can carry the data rate demand information of data packet simultaneously.Alternatively, UE can obtain the mapping relations of PPPP Yu data rate demand from base station, or be needed by being pre-configured acquisition PPPP and data rate The mapping relations asked, and mapped to obtain data rate demand according to the PPPP value of data packet.Alternatively, can define new PC5QoS Parameter, it is high-rise to AS layer transmitting data packet when can carry the qos parameter of data packet simultaneously, UE can join according to the QoS of the new definition Number derives the data rate demand of the data packet.Under the sample situation, once locating for the data rate demand of logic channel Range change after redefine the carrier frequency quantity that need to be used, and selection is used for transmission in candidate carrier frequencies set 5 Carrier frequency.Then V2X resource pool executes resource selection process to UE in the selected carrier frequency being used for transmission respectively, is used for selection The specific time-frequency domain resources of transmission.
Example 5: judged according to the reliability range of configuration with corresponding carrier frequency quantity
Base station can configure the mapping relations between reliability range and carrier frequency quantity for UE.UE is according to V2X business The carrier frequency quantity that reliability demand and the mapping relations determination need to use.Then UE selects to use in candidate carrier frequencies set 5 In the carrier frequency of transmission.High level to AS layers transmit data packet when can carry the reliability demand information of data packet simultaneously.Or Person, UE can obtain the mapping relations of PPPP Yu reliability demand from base station, or by be pre-configured obtain PPPP with The mapping relations of reliability demand, and map to obtain reliability demand according to the PPPP value of data packet.Alternatively, can Define new PC5QoS parameter, it is high-rise to AS layer transmitting data packet when can carry the qos parameter of data packet simultaneously, UE can be according to this The qos parameter newly defined derives the reliability demand of the data packet.Under the sample situation, once logic channel Range locating for reliability demand redefines the carrier frequency quantity that need to be used after changing, and in candidate carrier frequencies collection It closes in 5 and selects the carrier frequency being used for transmission.Then V2X resource pool executes resource to UE in the selected carrier frequency being used for transmission respectively Selection course, to select the specific time-frequency domain resources being used for transmission.
Example 6:SPS data use the carrier frequency selection under data distribution mode
For V2X business SPS data stream, UE can be preferential according to the CBR measurement result and highest of resource pool on frequency point The corresponding PPPP of logic channel of grade determines the RB number/number of retransmissions/MCS of resource that can be selected on the resource pool of some frequency point (Modulation and Coding Scheme) determines the resource size that can be transmitted on single carrier frequencies, then according to data Packet size determines the need for carrying out multi-carrier frequency data transmission using data split mode, further determines that if necessary It need to will be on data packet split to several carrier frequency.After split carrier frequency number has been determined, UE is determined on each carrier frequency Reservation interval and HARQ (Hybrid Automatic Repeat reQuest) number of retransmissions etc., then Resource selection is executed on each carrier frequency and starts SPS transmission；
Alternatively, UE can judge whether needs according to the CBR measurement result of resource pool on frequency point and the period of data packet Multi-carrier frequency data transmission is carried out using data split mode, data packet split need to be arrived if necessary by further determining that On several carrier frequency.After split carrier frequency number has been determined, UE determine reservation interval on each carrier frequency and Then HARQ number of retransmissions etc. executes resource selection on each carrier frequency and starts SPS transmission；
Optionally, each carrier frequency uses independent SL process, each SL process to correspond to independent SL_ RESOURCE_RESELECTION_COUNTER。
It should be understood that above-mentioned each step shown in Fig. 8 can be freely combined and adjustment time sequence.
Example IV:
To facilitate the understanding of the present invention, the present embodiment is UE as example using V2X sending ending equipment, is in RRC connection with UE State is simultaneously illustrated using mode 4.
The transmission carrier frequency selecting method of the mode 4UE of RRC connected state is shown in Figure 9, comprising:
S901:UE sends RRC information at eligible (such as having V2X business datum to need to send) to base station.
The RRC information that UE is sent can be sidelink UE information message or UE assistance Information message, wherein frequency point and corresponding target ID list (v2x- comprising request V2X sidelink transfer resource DestinationInfoList, base station can derive corresponding V2X service identification by Target id).The RRC information that UE is sent In include V2X carrier frequency be UE obtained according to the mapping relations that need to be transmitted between the service identification of data and service identification and carrier frequency Candidate carrier frequencies set 1 (i.e. initial candidate carrier frequency set), alternatively, the time that UE is mapped according to the service identification that need to transmit data The V2X carrier frequency set for selecting carrier frequency set 1 and base station to support is (for example, be sent to the V2X alien frequencies frequency of UE comprising service carrier frequency and base station Point) between intersection, i.e. candidate carrier frequencies set 2.Optionally, in RRC information comprising need to request resource Logic Channel Identifier and Corresponding QoS information perhaps target identification and corresponding QoS information or logic channel group mark and corresponding QoS information, Namely comprising the corresponding QoS information of data need to be transmitted.Optionally, if the V2X data of the same Target id are needed comprising a variety of QoS It asks, then only comprising highest QoS demand information in a variety of QoS demands in PC5 signaling；If the same logic channel group can be used for transmitting The data of a variety of QoS demands, then only comprising highest QoS demand information in a variety of QoS demands in the PC5 signaling.Specifically, QoS information includes following one or combination: data rate demand, reliability demand, priority, packet delay budget.Wherein reliability demand can be reliability class information.It optionally, include each carrier frequency in the RRC information Synchronous timing information.
As shown in the analysis of above-described embodiment one, carrier frequency that UE is sent to base station selection auxiliary information include following information extremely Few one kind:
Logic Channel Identifier；
Logic channel group mark；
Target identification；
QoS information；
Carrier frequency quantity；
Multi-carrier frequency indicates information；Wherein multi-carrier frequency instruction information is used to indicate whether to transmit using multi-carrier frequency, or whether It is transmitted using multi-carrier frequency data split, perhaps whether transmits or whether use using multi-carrier frequency data duplication Multi-carrier frequency data split and data duplication transmission；
V2X carrier frequency；
The synchronous timing information of each carrier wave；Including following one or combination: synchronous reference type (UE, GNSS, base station)；Together Covering situation locating for step source (is used to indicate synchronisation source in covering or covers outer)；The absolute timing value of synchronisation source；
UE is given in S902:eNB transmission RRC Connection Reconfiguration (RRC connection reconfiguration confidence breath), In include resource allocation mode instruction information (mode 4) and corresponding configuration information.
Base station can according to from UE received RRC information information determine that the resource allocation mode of UE generates corresponding resource point Corresponding configuration information is sent with mode indication information, and to UE.Optionally, base station is fixed according to synchronizing for the UE each carrier frequency reported When information, filter out timing alignment carrier frequency as V2X carrier frequency set.Optionally, if base station configuration UE uses mode4 resource The method of salary distribution, base station can be according to the candidate carrier frequencies set 1 that UE (UE comprising the request resource or other UE) is reported or candidate loads Frequency set 2 in each carrier frequency V2X resource pool CBR measurement result filter out can be used for UE transmission V2X carrier frequency obtain candidate load Frequency set 3, the V2X carrier frequency set that base station is sent to UE can be ranked up according to the CBR value of resource pool on each carrier frequency, such as CBR It is worth minimum carrier frequency/resource pool to make number one.
Optionally, referring to shown in above-described embodiment one, the QoS information that base station can also be reported according to UE determines whether using more Carrier transmission determines carrier frequency quantity or determines carrier frequency data distribution proportional arrangement information.These certain processes can also be by UE certainly Oneself executes.
For example, in this step, the QoS information that base station can be reported according to UE judges corresponding logic channel or logic Whether channel group or the corresponding data packet of target identification use multicarrier data duplication and the/side split data Formula transmission.For example, base station can be according to the PPPP value that UE is reported, the mapping relations between PPPP and reliability demand are calculated Reliability demand is obtained, whether multicarrier data duplication is then used according to reliability demand estimation Mode is transmitted.Alternatively, base station can also judge whether according to the reliability demand information that UE is reported using multicarrier data Duplication mode is transmitted.Alternatively, base station can be according to reflecting between data rate, PPPP and the data rate that UE is reported Data rate demand is calculated in the relationship of penetrating, and then whether uses multicarrier data split according to data rate demand estimation Mode is transmitted.Alternatively, base station can also judge whether according to the data rate demand information that UE is reported using multicarrier data Split mode is transmitted.
Optionally, if base station judges that UE need to be transmitted using multicarrier data duplication and/data split mode, Multi-carrier frequency instruction information is then sent to UE.
Therefore, in the present embodiment, the carrier frequency selection control that base station is sent by system message or the proprietary signaling of RRC to UE Information may include at least one of following information:
1. carrier frequency list:
1) carrier frequency being used for transmission；Alternatively,
2) according to effective candidate carrier frequencies set after the screening of CBR result；Alternatively,
3) according to effective candidate carrier frequencies set of CBR sort result (such as candidate carrier frequencies set 3 after sequence)；
2. carrier frequency quantity indicates the carrier frequency quantity that need to be used or workable maximum carrier frequency quantity；
3. Logic Channel Identifier；
4. logic channel group identifies；
5. target identification or target call number；
6. multi-carrier frequency indicates information, it is used to indicate whether to transmit using multi-carrier frequency；
7. the data distribution ratio of carrier frequency；
8. resource pool information；
9. being used to determine whether the information transmitted using PC5 multi-carrier frequency:
1) priority threshold value, for example, not using PC5CA function if the PPPP value of data packet is greater than priority threshold value Energy；If the PPPP value of data packet is less than priority threshold value, PC5CA function, including data split, data may be used duplication；
2) buffer size threshold value；3) data rate threshold value；4) delay budget threshold value；5) Reliability threshold value；6) reliability and delay budget threshold value；7) buffer size and delay Budget threshold value；
10. being used to determine whether the information using PC5 multi-carrier frequency and/or carrier frequency quantity:
1) buffer size range and corresponding carrier frequency quantity；
2) data rate range and corresponding carrier frequency quantity；
3) reliability range and corresponding carrier frequency quantity；
4) packet delay budget range and buffer size range and corresponding carrier frequency quantity；
5) priority and corresponding carrier frequency quantity, can be the corresponding carrier frequency number of PPPP value/range；
11. for determining whether carrier frequency is alternatively used for the information of transmission:
1) CBR threshold value；2) CBR threshold value and corresponding priority；3) CBR threshold value and corresponding data rate；4) CBR threshold value and corresponding reliablility；5) CBR threshold value and corresponding packet delay budget；6) CBR Limit value and corresponding frequency point；7) CBR threshold value and corresponding resource pool；
S903:UE carries out the transmission of PC5 data using the carrier frequency from the candidate carrier frequencies set 3 that base station obtains, at this time base station Perform above-mentioned carrier frequency selection process；Or, UE from the received candidate carrier frequencies set 3 in base station execute carrier frequency selection, at this time by UE carries out carrier frequency selection.
If the resource allocation information that UE is received from base station includes Logic Channel Identifier and corresponding carrier frequency list, UE are Data execute subsequent carrier frequency selection (including carrier frequency quantity and specific carrier frequency) and are provided in corresponding carrier frequency list in logic channel Source selection.
If the resource allocation information that UE is received from base station includes logic channel group mark and corresponding carrier frequency list, UE Subsequent carrier frequency selection and resource selection are executed in corresponding carrier frequency list for data in logic channel group.
If the resource allocation information that UE is received from base station includes target identification and corresponding carrier frequency list, UE is according to number According to target identification the selection of subsequent carrier frequency and resource selection are executed in corresponding carrier frequency list.
Optionally, in the V2X carrier frequency list (i.e. candidate carrier frequencies set 3) configured for each logic channel, UE to base station The resource pool of V2X carrier frequency executes CBR measurement, specifically, the resource pool information of V2X carrier frequency is obtained by UE from base station.
Optionally, UE filters out the carrier frequency of timing alignment as V2X carrier frequency collection according to the synchronous timing information on each carrier frequency It closes.
Optionally, it if UE obtains CBR threshold value from base station, is carried where V2X resource pool using CBR threshold value for judging Whether frequency can be used for PC5 transmission.If UE obtains CBR threshold value and corresponding carrier frequency from base station, UE on the carrier frequency using pair The CBR threshold value answered；If UE obtains CBR threshold value and corresponding resource pool from base station, UE uses correspondence on the resource pool CBR threshold value；If UE obtains CBR threshold value and corresponding priority from base station, UE is according to the priority that need to transmit data Or the priority of the data in the logical channel transmission determines its corresponding CBR threshold value.If UE obtains CBR threshold value from base station And corresponding data rate demand, then UE is according to the data rate demand that need to transmit data or in the number of the logical channel transmission According to data rate demand determine its corresponding CBR threshold value.If UE obtains CBR threshold value and corresponding from base station Reliablility, then UE is according to the reliablility demand that need to transmit data or in the data of the logical channel transmission Reliablility demand determines its corresponding CBR threshold value.If UE obtains CBR threshold value and corresponding packet from base station Delay budget demand, then UE is passed according to the packet delay budget demand that need to transmit data or in the logic channel The packet delay budget demand of defeated data determines its corresponding CBR threshold value.
UE judges that carrier frequency where the resource pool of the measurement whether may be used according to the CBR measurement result of V2X resource pool on each carrier frequency It is used for transmission, for example, UE thinks that the carrier frequency is unavailable if the CBR measurement result of the resource pool is higher than corresponding CBR threshold value In transmission；If the CBR measurement result of the resource pool is lower than corresponding CBR threshold value, UE thinks that the carrier frequency can be used for transmitting.UE Candidate carrier frequencies set 4 is filtered out according to the CBR measurement process of the resource pool of the above-mentioned V2X list to base station configuration, i.e., can not The carrier frequency being used for transmission excludes.Optionally, UE arranges 4 intermediate-frequeney point of candidate carrier frequencies set according to the CBR measured value of each frequency point Sequence, for example, then the smallest frequency point of CBR measured value makes number one, according to this by carrier frequency according to the ascending sequence of CBR measured value Analogize.
S904: judge whether to carry out the transmission of PC5 data using multi-carrier frequency.
Optionally, if there is the generation for executing above-mentioned multi-carrier frequency transmission of configuration information in base station, UE can be received according to from base station Configuration information judge whether to carry out the transmission of PC5 data using multi-carrier frequency, including with data split and/or data Duplication mode:
If 1) configuration information that UE is received from base station includes that Logic Channel Identifier and corresponding multi-carrier frequency indicate information, UE indicates that information judges whether corresponding logic channel uses multi-carrier frequency to carry out the transmission of PC5 data according to multi-carrier frequency；
If 2) configuration information that UE is received from base station includes that logic channel group mark and corresponding multi-carrier frequency indicate information, Then indicate that information judges whether corresponding logic channel group uses multi-carrier frequency to carry out the transmission of PC5 data according to multi-carrier frequency；
3) if the configuration information that UE is received from base station includes that target identification and corresponding multi-carrier frequency indicate information, UE root Judge whether corresponding target identification data use multi-carrier frequency to carry out the transmission of PC5 data according to multi-carrier frequency instruction information.
UE may be based on from base station obtain corresponding threshold information judge whether to need to carry out multi-carrier frequency transmission, including But it is not limited to:
If 4) UE receives priority threshold value information from base station, UE is according to the priority and priority of data to be transmitted Threshold information judges whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.For example, to the priority value for transmitting data (e.g., PPPP) is less than configured priority threshold value, and multi-carrier frequency may be used and carry out the transmission of PC5 data；
If 5) UE receives data rate threshold information from base station, UE is according to the data rate need of data to be transmitted It asks and judges whether that multi-carrier frequency can be used to carry out the transmission of PC5 data with data rate threshold information.For example, to transmit data Data rate demand be greater than configured data rate threshold value, may be used multi-carrier frequency carry out the transmission of PC5 data；
If 6) UE receives buffer size threshold information from base station, UE is according to the buffer of current logic channel Size size and buffer size threshold information judge whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.For example, if working as The buffer size of preceding logic channel is greater than configured buffer size threshold value, and multi-carrier frequency may be used and carry out PC5 number According to transmission；
If 7) UE receives reliability threshold information from base station, UE is according to need to transmit data Reliability demand and reliability threshold information judge whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.Example Such as, if the reliability demand that need to transmit data is higher than configured reliability threshold value, multi-carrier frequency may be used Carry out the transmission of PC5 data；
If 8) UE receives packet delay budget threshold information from base station, UE is according to need to transmit data Packet delay budget and packet delay budget threshold information judge whether that multi-carrier frequency can be used to carry out PC5 Data transmission.For example, if the packet delay budget that need to transmit data is less than configured packet delay Budget threshold value may be used multi-carrier frequency and carry out the transmission of PC5 data.
S905: carrier frequency quantity is determined.
Optionally, the carrier frequency that UE need to voluntarily can be used according to the service identification information or QoS information determination that need to transmit data Quantity is selecting certain amount carrier frequency from the received candidate carrier frequencies set 3 in base station or from candidate carrier frequencies set 4.If base station The generation of carrier frequency determination of amount, that is, corresponding configuration information is executed, then UE can obtain carrier frequency quantity configuration information from base station, then root It is selected according to the received carrier frequency quantity configuration information of institute from the received candidate carrier frequencies set 3 in base station or from candidate carrier frequencies set 4 Certain amount carrier frequency.It particularly may be divided into following several situations:
1) if the resource allocation information that UE is received from base station includes Logic Channel Identifier and corresponding carrier frequency quantity, UE The carrier frequency of corresponding carrier frequency quantity is selected to be transmitted for data in logic channel；
If 2) resource allocation information that UE is received from base station includes logic channel group mark and corresponding carrier frequency quantity, UE is that data select the carrier frequency of corresponding carrier frequency quantity to be transmitted in logic channel group；
3) if the resource allocation information that UE is received from base station includes target identification and corresponding carrier frequency quantity, UE are same The data to be sent of one target identification select the carrier frequency of corresponding carrier frequency quantity to be transmitted；
If 4) resource allocation information that UE is received from base station includes buffer size range and corresponding carrier frequency quantity, Then UE range according to locating for the current buffer size of logic channel, the buffer size range configured and carrier frequency quantity Mapping relations determine carrier frequency quantity workable for the carrier frequency quantity or maximum that the logic channel need to use；
If 5) resource allocation information that UE is received from base station includes data rate range and corresponding carrier frequency quantity, UE range according to locating for the data rate demand that need to transmit data, the data rate range of needs configured and carrier frequency quantity Mapping relations determine carrier frequency quantity workable for the carrier frequency quantity or maximum that the logic channel need to use；
If 6) resource allocation information that UE is received from base station includes reliability range and corresponding carrier frequency quantity, Then UE range according to locating for the reliability demand that need to transmit data, the reliability range of needs configured and load The mapping relations of frequency amount determine carrier frequency quantity workable for the carrier frequency quantity or maximum that the logic channel need to use；
7) if the resource allocation information that UE is received from base station includes packet delay budget range and corresponding load Frequency amount, then UE range according to locating for the packet delay budget that need to transmit data, the packet delay configured The mapping relations of budget range and carrier frequency quantity determine the carrier frequency quantity that the logic channel need to use or maximum workable load Frequency amount；
8) if the resource allocation information that UE is received from base station includes packet delay budget range and buffer Size range and corresponding carrier frequency quantity, then UE range according to locating for the packet delay budget that need to transmit data, is patrolled Collect range locating for the current buffer size of channel, the packet delay budget range and buffer configured The mapping relations of size range and carrier frequency quantity determine carrier frequency workable for the carrier frequency quantity or maximum that the logic channel need to use Quantity；
For example, base station can configure buffer size 200-400 byte for UE, packet delay budget is 50ms Corresponding carrier frequency quantity is 2, buffer size 200-400 byte, and packet delay budget is the corresponding load of 100ms Frequency amount is 1；
If 8) resource allocation information that UE is received from base station includes priority and corresponding carrier frequency quantity, UE is according to patrolling The mapping relations of the priority of volume transmitted data of channel, the priority configured and carrier frequency quantity determine that the logic channel need to make Carrier frequency quantity workable for carrier frequency quantity or maximum.
S906: the quantity that transmission is needed on each carrier frequency is determined.
If UE judgement need to use multi-carrier frequency carry out the transmission of PC5 data, and the carrier frequency determined required to transmission, and UE not from The data distribution ratio of base station reception carrier then voluntarily determines the data that transmission is needed on each selected carrier frequency being used for transmission Amount, and following resource selection is executed on each carrier frequency according to sensing result respectively.
Alternatively, if UE judgement need to use multi-carrier frequency to carry out the transmission of PC5 data, and the carrier frequency determined required to transmission, and The configuration information that UE is received from base station includes carrier frequency data distribution percent information, then UE is according to carrier frequency data distribution percent information The data volume size for needing transmission on each carrier frequency is calculated, and executes following resource selection on each carrier frequency respectively.
Optionally, if the configuration information that UE is received from base station includes Logic Channel Identifier, carrier frequency list and corresponding load Frequency is according to shunt ratio, then UE is transmitted for data in logic channel using carrier frequency in corresponding carrier frequency list, and according to institute Each carrier frequency data distribution ratio of configuration calculates the data volume size that transmission is needed on each carrier frequency, and executes on each carrier frequency respectively Following resource selection.For example, needing transmitted data amount size in current logic channel 1 is 200 bytes, and determines and use 1 He of carrier frequency Carrier frequency 2 transmits, if the data distribution ratio of UE carrier frequency 1 from the received configuration information in base station is 60%, the data distribution of carrier frequency 2 Ratio is 40%, then it is 120 bytes, the data that carrier frequency 2 can be used to transmit that the data volume that usable carrier frequency 1 transmits, which is calculated, in UE Amount is 80 bytes.
If the configuration information that UE is received from base station is identified comprising logic channel group, carrier frequency list and corresponding carrier frequency data Shunt ratio, then UE is that data are transmitted using carrier frequency in corresponding carrier frequency list in logic channel group, and according to being configured Each carrier frequency data distribution ratio calculate the data volume size that transmission is needed on each carrier frequency, and executed on each carrier frequency respectively subsequent Resource selection.
If the configuration information that UE is received from base station includes target identification, carrier frequency list and corresponding carrier frequency data distribution ratio Example, then UE is transmitted for the data of same target identification using carrier frequency in corresponding carrier frequency list, and each according to what is configured Carrier frequency data distribution ratio calculates the data volume size that transmission is needed on each carrier frequency, and executes following resource on each carrier frequency respectively Selection.
It should be understood that above-mentioned each step shown in Fig. 9 can also be freely combined, chronological order is adjustable.
Embodiment five:
To facilitate the understanding of the present invention, the present embodiment is UE as example using V2X sending ending equipment, is in RRC connection with UE State is simultaneously illustrated using mode 3.
The transmission carrier frequency selecting method of the mode 3UE of RRC connected state, it is shown in Figure 10, comprising:
S1001:UE sends RRC information at eligible (such as having V2X business datum to need to send) to base station.
The RRC information that UE is sent can be sidelink UE information message or UE assistance Information message, wherein frequency point and corresponding target ID list (v2x- comprising request V2X sidelink transfer resource DestinationInfoList, base station can derive corresponding V2X service identification by Target id).The RRC information that UE is sent In include V2X carrier frequency be UE obtained according to the mapping relations that need to be transmitted between the service identification of data and service identification and carrier frequency Candidate carrier frequencies set 1 (i.e. initial candidate carrier frequency set), alternatively, the time that UE is mapped according to the service identification that need to transmit data The V2X carrier frequency set for selecting carrier frequency set 1 and base station to support is (for example, be sent to the V2X alien frequencies frequency of UE comprising service carrier frequency and base station Point) between intersection, i.e. candidate carrier frequencies set 2.Optionally, in RRC information comprising need to request resource Logic Channel Identifier and Corresponding QoS information perhaps target identification and corresponding QoS information or logic channel group mark and corresponding QoS information, Namely comprising the corresponding QoS information of data need to be transmitted.Optionally, if the V2X data of the same Target id are needed comprising a variety of QoS It asks, then only comprising highest QoS demand information in a variety of QoS demands in PC5 signaling；If the same logic channel group can be used for transmitting The data of a variety of QoS demands, then only comprising highest QoS demand information in a variety of QoS demands in the PC5 signaling.Specifically, QoS information includes following one or combination: data rate demand, reliability demand, priority, packet delay budget.Wherein reliability demand can be reliability class information.It optionally, include each carrier frequency in the RRC information Synchronous timing information.
As shown in the analysis of above-described embodiment one, carrier frequency that UE is sent to base station selection auxiliary information include following information extremely Few one kind:
Logic Channel Identifier；
Logic channel group mark；
Target identification；
QoS information；
Carrier frequency quantity；
Multi-carrier frequency indicates information；Wherein multi-carrier frequency instruction information is used to indicate whether to transmit using multi-carrier frequency, or whether It is transmitted using multi-carrier frequency data split, perhaps whether transmits or whether use using multi-carrier frequency data duplication Multi-carrier frequency data split and data duplication transmission；
V2X carrier frequency；
The synchronous timing information of each carrier wave；Including following one or combination: synchronous reference type (UE, GNSS, base station)；Together Covering situation locating for step source (is used to indicate synchronisation source in covering or covers outer)；The absolute timing value of synchronisation source；
UE is given in S1002:eNB transmission RRC Connection Reconfiguration (RRC connection reconfiguration confidence breath), In include resource allocation mode instruction information (mode 3) and corresponding configuration information.
Base station can according to from UE received RRC information information determine that the resource allocation mode of UE generates corresponding resource point Corresponding configuration information is sent with mode indication information, and to UE.Optionally, base station is fixed according to synchronizing for the UE each carrier frequency reported When information, filter out timing alignment carrier frequency as V2X carrier frequency set.Optionally, if base station configuration UE uses mode3 resource The method of salary distribution, base station can be according to the candidate carrier frequencies set 1 that UE (UE comprising the request resource or other UE) is reported or candidate loads Frequency set 2 in each carrier frequency V2X resource pool CBR measurement result filter out can be used for UE transmission V2X carrier frequency obtain candidate load Frequency set 3, the V2X carrier frequency set that base station is sent to UE can be ranked up according to the CBR value of resource pool on each carrier frequency, such as CBR It is worth minimum carrier frequency/resource pool to make number one.
Optionally, referring to shown in above-described embodiment one, the QoS information that base station can also be reported according to UE determines whether using more Carrier transmission determines carrier frequency quantity or determines carrier frequency data distribution proportional arrangement information.These certain processes can also be by UE certainly Oneself executes.
For example, in this step, the QoS information that base station can be reported according to UE judges corresponding logic channel or logic Whether channel group or the corresponding data packet of target identification use multicarrier data duplication and the/side split data Formula transmission.For example, base station can be according to the PPPP value that UE is reported, the mapping relations between PPPP and reliability demand are calculated Reliability demand is obtained, whether multicarrier data duplication is then used according to reliability demand estimation Mode is transmitted.Alternatively, base station can also judge whether according to the reliability demand information that UE is reported using multicarrier data Duplication mode is transmitted.Alternatively, base station can be according to reflecting between data rate, PPPP and the data rate that UE is reported Data rate demand is calculated in the relationship of penetrating, and then whether uses multicarrier data split according to data rate demand estimation Mode is transmitted.Alternatively, base station can also judge whether according to the data rate demand information that UE is reported using multicarrier data Split mode is transmitted.
Optionally, if base station judges that UE need to be transmitted using multicarrier data duplication and/data split mode, Multi-carrier frequency instruction information is then sent to UE.
Therefore, in the present embodiment, the carrier frequency selection control that base station is sent by system message or the proprietary signaling of RRC to UE Information may include at least one of following information:
2. carrier frequency list:
1) carrier frequency being used for transmission；Alternatively,
2) according to effective candidate carrier frequencies set after the screening of CBR result；Alternatively,
3) according to effective candidate carrier frequencies set of CBR sort result (such as candidate carrier frequencies set 3 after sequence)；
2. carrier frequency quantity indicates the carrier frequency quantity that need to be used or workable maximum carrier frequency quantity；
3. Logic Channel Identifier；
4. logic channel group identifies；
5. target identification or target call number；
9. multi-carrier frequency indicates information, it is used to indicate whether to transmit using multi-carrier frequency；
10. the data distribution ratio of carrier frequency；
11. resource pool information；
9. being used to determine whether the information transmitted using PC5 multi-carrier frequency:
1) priority threshold value, for example, not using PC5CA function if the PPPP value of data packet is greater than priority threshold value Energy；If the PPPP value of data packet is less than priority threshold value, PC5CA function, including data split, data may be used duplication；
2) buffer size threshold value；3) data rate threshold value；4) delay budget threshold value；5) Reliability threshold value；6) reliability and delay budget threshold value；7) buffer size and delay Budget threshold value；
10. being used to determine whether the information using PC5 multi-carrier frequency and/or carrier frequency quantity:
1) buffer size range and corresponding carrier frequency quantity；
2) data rate range and corresponding carrier frequency quantity；
3) reliability range and corresponding carrier frequency quantity；
4) packet delay budget range and buffer size range and corresponding carrier frequency quantity；
5) priority and corresponding carrier frequency quantity, can be the corresponding carrier frequency number of PPPP value/range；
11. for determining whether carrier frequency is alternatively used for the information of transmission:
1) CBR threshold value；2) CBR threshold value and corresponding priority；3) CBR threshold value and corresponding data rate；4) CBR threshold value and corresponding reliablility；5) CBR threshold value and corresponding packet delay budget；6) CBR Limit value and corresponding frequency point；7) CBR threshold value and corresponding resource pool；
S1003:UE carries out the transmission of PC5 data using the carrier frequency from the candidate carrier frequencies set 3 that base station obtains, at this time base station Perform above-mentioned carrier frequency selection process；Or, UE from the received candidate carrier frequencies set 3 in base station execute carrier frequency selection, at this time by UE carries out carrier frequency selection.
If the resource allocation information that UE is received from base station includes Logic Channel Identifier and corresponding carrier frequency list, UE are Data execute subsequent carrier frequency selection (including carrier frequency quantity and specific carrier frequency) and are provided in corresponding carrier frequency list in logic channel Source selection.
If the resource allocation information that UE is received from base station includes logic channel group mark and corresponding carrier frequency list, UE Subsequent carrier frequency selection and resource selection are executed in corresponding carrier frequency list for data in logic channel group.
If the resource allocation information that UE is received from base station includes target identification and corresponding carrier frequency list, UE is according to number According to target identification the selection of subsequent carrier frequency and resource selection are executed in corresponding carrier frequency list.
Optionally, in the V2X carrier frequency list (i.e. candidate carrier frequencies set 3) configured for each logic channel, UE to base station The resource pool of V2X carrier frequency executes CBR measurement, specifically, the resource pool information of V2X carrier frequency is obtained by UE from base station.
Optionally, UE filters out the carrier frequency of timing alignment as V2X carrier frequency collection according to the synchronous timing information on each carrier frequency It closes.
Optionally, it if UE obtains CBR threshold value from base station, is carried where V2X resource pool using CBR threshold value for judging Whether frequency can be used for PC5 transmission.If UE obtains CBR threshold value and corresponding carrier frequency from base station, UE on the carrier frequency using pair The CBR threshold value answered；If UE obtains CBR threshold value and corresponding resource pool from base station, UE uses correspondence on the resource pool CBR threshold value；If UE obtains CBR threshold value and corresponding priority from base station, UE is according to the priority that need to transmit data Or the priority of the data in the logical channel transmission determines its corresponding CBR threshold value.If UE obtains CBR threshold value from base station And corresponding data rate demand, then UE is according to the data rate demand that need to transmit data or in the number of the logical channel transmission According to data rate demand determine its corresponding CBR threshold value.If UE obtains CBR threshold value and corresponding from base station Reliablility, then UE is according to the reliablility demand that need to transmit data or in the data of the logical channel transmission Reliablility demand determines its corresponding CBR threshold value.If UE obtains CBR threshold value and corresponding packet from base station Delay budget demand, then UE is passed according to the packet delay budget demand that need to transmit data or in the logic channel The packet delay budget demand of defeated data determines its corresponding CBR threshold value.
UE judges that carrier frequency where the resource pool of the measurement whether may be used according to the CBR measurement result of V2X resource pool on each carrier frequency It is used for transmission, for example, UE thinks that the carrier frequency is unavailable if the CBR measurement result of the resource pool is higher than corresponding CBR threshold value In transmission；If the CBR measurement result of the resource pool is lower than corresponding CBR threshold value, UE thinks that the carrier frequency can be used for transmitting.UE Candidate carrier frequencies set 4 is filtered out according to the CBR measurement process of the resource pool of the above-mentioned V2X list to base station configuration, i.e., can not The carrier frequency being used for transmission excludes.Optionally, UE arranges 4 intermediate-frequeney point of candidate carrier frequencies set according to the CBR measured value of each frequency point Sequence, for example, then the smallest frequency point of CBR measured value makes number one, according to this by carrier frequency according to the ascending sequence of CBR measured value Analogize.
S1004: judge whether to carry out the transmission of PC5 data using multi-carrier frequency.
Optionally, if there is the generation for executing above-mentioned multi-carrier frequency transmission of configuration information in base station, UE can be received according to from base station Configuration information judge whether to carry out the transmission of PC5 data using multi-carrier frequency, including with data split and/or data Duplication mode:
If 1) configuration information that UE is received from base station includes that Logic Channel Identifier and corresponding multi-carrier frequency indicate information, UE indicates that information judges whether corresponding logic channel uses multi-carrier frequency to carry out the transmission of PC5 data according to multi-carrier frequency；
If 2) configuration information that UE is received from base station includes that logic channel group mark and corresponding multi-carrier frequency indicate information, Then indicate that information judges whether corresponding logic channel group uses multi-carrier frequency to carry out the transmission of PC5 data according to multi-carrier frequency；
3) if the configuration information that UE is received from base station includes that target identification and corresponding multi-carrier frequency indicate information, UE root Judge whether corresponding target identification data use multi-carrier frequency to carry out the transmission of PC5 data according to multi-carrier frequency instruction information.
UE may be based on from base station obtain corresponding threshold information judge whether to need to carry out multi-carrier frequency transmission, including But it is not limited to:
If 4) UE receives priority threshold value information from base station, UE is according to the priority and priority of data to be transmitted Threshold information judges whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.For example, to the priority value for transmitting data (e.g., PPPP) is less than configured priority threshold value, and multi-carrier frequency may be used and carry out the transmission of PC5 data；
If 5) UE receives data rate threshold information from base station, UE is according to the data rate need of data to be transmitted It asks and judges whether that multi-carrier frequency can be used to carry out the transmission of PC5 data with data rate threshold information.For example, to transmit data Data rate demand be greater than configured data rate threshold value, may be used multi-carrier frequency carry out the transmission of PC5 data；
If 6) UE receives buffer size threshold information from base station, UE is according to the buffer of current logic channel Size size and buffer size threshold information judge whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.For example, if working as The buffer size of preceding logic channel is greater than configured buffer size threshold value, and multi-carrier frequency may be used and carry out PC5 number According to transmission；
If 7) UE receives reliability threshold information from base station, UE is according to need to transmit data Reliability demand and reliability threshold information judge whether that multi-carrier frequency can be used to carry out the transmission of PC5 data.Example Such as, if the reliability demand that need to transmit data is higher than configured reliability threshold value, multi-carrier frequency may be used Carry out the transmission of PC5 data；
If 8) UE receives packet delay budget threshold information from base station, UE is according to need to transmit data Packet delay budget and packet delay budget threshold information judge whether that multi-carrier frequency can be used to carry out PC5 Data transmission.For example, if the packet delay budget that need to transmit data is less than configured packet delay Budget threshold value may be used multi-carrier frequency and carry out the transmission of PC5 data.
S1005: carrier frequency quantity is determined.
Optionally, the carrier frequency that UE need to voluntarily can be used according to the service identification information or QoS information determination that need to transmit data Quantity is selecting certain amount carrier frequency from the received candidate carrier frequencies set 3 in base station or from candidate carrier frequencies set 4.If base station The generation of carrier frequency determination of amount, that is, corresponding configuration information is executed, then UE can obtain carrier frequency quantity configuration information from base station, then root It is selected according to the received carrier frequency quantity configuration information of institute from the received candidate carrier frequencies set 3 in base station or from candidate carrier frequencies set 4 Certain amount carrier frequency.It particularly may be divided into following several situations:
1) if the resource allocation information that UE is received from base station includes Logic Channel Identifier and corresponding carrier frequency quantity, UE The carrier frequency of corresponding carrier frequency quantity is selected to be transmitted for data in logic channel；
If 2) resource allocation information that UE is received from base station includes logic channel group mark and corresponding carrier frequency quantity, UE is that data select the carrier frequency of corresponding carrier frequency quantity to be transmitted in logic channel group；
3) if the resource allocation information that UE is received from base station includes target identification and corresponding carrier frequency quantity, UE are same The data to be sent of one target identification select the carrier frequency of corresponding carrier frequency quantity to be transmitted；
If 4) resource allocation information that UE is received from base station includes buffer size range and corresponding carrier frequency quantity, Then UE range according to locating for the current buffer size of logic channel, the buffer size range configured and carrier frequency quantity Mapping relations determine carrier frequency quantity workable for the carrier frequency quantity or maximum that the logic channel need to use；
If 5) resource allocation information that UE is received from base station includes data rate range and corresponding carrier frequency quantity, UE range according to locating for the data rate demand that need to transmit data, the data rate range of needs configured and carrier frequency quantity Mapping relations determine carrier frequency quantity workable for the carrier frequency quantity or maximum that the logic channel need to use；
If 6) resource allocation information that UE is received from base station includes reliability range and corresponding carrier frequency quantity, Then UE range according to locating for the reliability demand that need to transmit data, the reliability range of needs configured and load The mapping relations of frequency amount determine carrier frequency quantity workable for the carrier frequency quantity or maximum that the logic channel need to use；
7) if the resource allocation information that UE is received from base station includes packet delay budget range and corresponding load Frequency amount, then UE range according to locating for the packet delay budget that need to transmit data, the packet delay configured The mapping relations of budget range and carrier frequency quantity determine the carrier frequency quantity that the logic channel need to use or maximum workable load Frequency amount；
8) if the resource allocation information that UE is received from base station includes packet delay budget range and buffer Size range and corresponding carrier frequency quantity, then UE range according to locating for the packet delay budget that need to transmit data, is patrolled Collect range locating for the current buffer size of channel, the packet delay budget range and buffer configured The mapping relations of size range and carrier frequency quantity determine carrier frequency workable for the carrier frequency quantity or maximum that the logic channel need to use Quantity；
For example, base station can configure buffer size 200-400 byte for UE, packet delay budget is 50ms Corresponding carrier frequency quantity is 2, buffer size 200-400 byte, and packet delay budget is the corresponding load of 100ms Frequency amount is 1；
If 9) resource allocation information that UE is received from base station includes priority and corresponding carrier frequency quantity, UE is according to patrolling The mapping relations of the priority of volume transmitted data of channel, the priority configured and carrier frequency quantity determine that the logic channel need to make Carrier frequency quantity workable for carrier frequency quantity or maximum.
S1006: the quantity that transmission is needed on each carrier frequency is determined.
If UE judgement need to use multi-carrier frequency carry out the transmission of PC5 data, and the carrier frequency determined required to transmission, and UE not from The data distribution ratio of base station reception carrier then voluntarily determines the data that transmission is needed on each selected carrier frequency being used for transmission Amount, and BSR (Buffer Status Report, buffer status report) is sent to base station to request PC5 on corresponding carrier frequency Transfer resource.
Alternatively, if UE judgement need to use multi-carrier frequency to carry out the transmission of PC5 data, and the carrier frequency determined required to transmission, and The configuration information that UE is received from base station includes carrier frequency data distribution percent information, then UE is according to carrier frequency data distribution percent information The data volume size for needing transmission on each carrier frequency is calculated, and sends BSR to base station to request PC5 transmission money on corresponding carrier frequency Source.
Optionally, if the configuration information that UE is received from base station includes Logic Channel Identifier, carrier frequency list and corresponding load Frequency is according to shunt ratio, then UE is transmitted for data in logic channel using carrier frequency in corresponding carrier frequency list, and according to institute Configuration each carrier frequency data distribution ratio calculate needed on each carrier frequency transmission data volume size, and to base station send BSR with PC5 transfer resource is requested on corresponding carrier frequency.For example, it is 200 bytes that transmitted data amount size is needed in current logic channel 1, and It determines and is transmitted using carrier frequency 1 and carrier frequency 2, if the data distribution ratio of UE carrier frequency 1 from the received configuration information in base station is 80%, The data distribution ratio of carrier frequency 2 is 20%, then it is 160 bytes that the data volume that usable carrier frequency 1 transmits, which is calculated, in UE, be can be used The data volume that carrier frequency 2 transmits is 40 bytes.
If the configuration information that UE is received from base station is identified comprising logic channel group, carrier frequency list and corresponding carrier frequency data Shunt ratio, then UE is that data are transmitted using carrier frequency in corresponding carrier frequency list in logic channel group, and according to being configured Each carrier frequency data distribution ratio calculate needed on each carrier frequency transmission data volume size, and to base station send BSR corresponding Carrier frequency on request PC5 transfer resource.
If the configuration information that UE is received from base station includes target identification, carrier frequency list and corresponding carrier frequency data distribution ratio Example, then UE is transmitted for the data of same target identification using carrier frequency in corresponding carrier frequency list, and each according to what is configured Carrier frequency data distribution ratio calculates the data volume size that transmission is needed on each carrier frequency, and sends BSR to base station to carry accordingly PC5 transfer resource is requested on frequency.
It should be understood that above-mentioned each step shown in Fig. 10 can also be freely combined, chronological order is adjustable.
The carrier frequency selecting method provided through this embodiment may be implemented between the vehicle user in base station overlay area Multi-carrier frequency communicates the multi-carrier frequency between (referring to shown in Figure 11 and Figure 12) and vehicle in no area of coverage and communicates (referring to Figure 13 It is shown), and when vehicle user is in base station overlay area, the carrier frequency of the use between vehicle user and use with base station communication Carrier frequency can be identical, can be different.Specifically, carrier frequency f2, f3 are used in Figure 11 between Vehicle UE1 and Vehicle UE2 It is communicated, Vehicle UE2 is communicated with base station eNB using carrier frequency f1.Vehicle UE1 and Vehicle in Figure 12 It is communicated between UE2 using carrier frequency f1, f2, Vehicle UE2 is communicated with base station eNB using carrier frequency f1.In Figure 13 It is communicated between Vehicle UE1 and the Vehicle UE2 of no area of coverage using carrier frequency f2, f3.And it should be understood that The carrier frequency number that Vehicle UE1 and Vehicle UE2 are used is not limited to two of diagram, according to concrete application scene selection Specific number may be different.
Embodiment six:
When being transmitted for V2X communication sending ending equipment using multi-carrier frequency, it (is also likely to be vehicle-mounted that V2X communication, which receives end equipment, Terminal or user terminal) it is limited since it receives ability, for the V2X business datum that sender is sent by multiple carrier frequency, have May have no ability to receive the V2X business datum sent on this multiple carrier frequency simultaneously, just need to solve at this time reception ability by How the recipient UE of limit determines the problem of needing received carrier frequency.
In view of the above-mentioned problems, the present embodiment additionally provides a kind of selection of PC5 carrier frequency selecting method realization reception carrier, ginseng As shown in Figure 14, comprising:
S141: the corresponding priority of service identification or the service identification list with priority ranking are obtained.
V2X receiving device can receive service identification and corresponding priority value or service identification list from base station.It can Choosing, service identification list is the list being ranked up according to the reception priority of business, for example, the business of highest priority is arranged At first, and so on.Base station can send service identification and corresponding preferential to UE by system message or the proprietary signaling of RRC Grade or service identification list.Or V2X receiving device can be based on pre-configuration mode or from V2X control function Or V2X application server obtains service identification and corresponding priority or service identification list.
S142: it according to the corresponding priority of service identification or with the service identification list of priority ranking, selects more in PC5 The corresponding carrier frequency of the business of energy while received M higher priority is carried as reception in the range of carrier frequency reception ability is supported Frequently, the M is the integer more than or equal to 1.
Recipient UE can determine itself interested V2X service identification, and be closed according to the mapping of service identification and V2X carrier frequency System obtains the received V2X carrier frequency set of progress interested.Namely V2X receiving device is according to the target service of acquisition mark and in advance If service identification and carrier frequency mapping relations obtain the corresponding carrier frequency of each target service mark.V2X receiving device is according to itself PC5 multi-carrier frequency receive ability information and determine that V2X business cannot be received on whole received carrier frequency of carry out interested simultaneously When data, according to the sequence of the corresponding priority of the service identification of each business from high to low, ability information is received in PC5 multi-carrier frequency Selection can be performed simultaneously received M business in the range of support.Then V2X receiving device is received according to that can be performed simultaneously V2X business and the mapping relations of V2X service identification and V2X carrier frequency obtain that received carrier frequency set need to be executed；Alternatively, more in PC5 In the range of carrier frequency receives ability information support, successively selecting according to the sequence in service identification list can simultaneously received M The corresponding carrier frequency of business is as reception carrier.M is the integer more than or equal to 1, and it includes supporting together that PC5 multi-carrier frequency, which receives ability information, The received frequency band of Shi Jinhang PC5 combines band combination information, while supporting the received frequency band combination band of PC5 and Uu At least one of combination information and receives link Rx chain information.
The present embodiment additionally provides a kind of PC5 carrier frequency selection device, may be disposed in V2X receiving device, referring to figure Shown in 15, comprising:
Business obtains module 151, for obtaining the corresponding priority of service identification or with the service identification of priority ranking List.
Business, which obtains module 151, to receive service identification and corresponding priority value or service identification list from base station. Optionally, service identification list is the list that base station is ranked up according to the priority of business, for example, the business of highest priority It makes number one, and so on.Base station can send service identification and corresponding excellent to UE by system message or the proprietary signaling of RRC First grade or service identification list.Or V2X receiving device can be based on pre-configuration mode or from V2X control Function or V2X application server obtains service identification and corresponding priority or service identification list. Then V2X receiving device can be obtained from the service identification that gets target service mark (can according to the user's choice or its His factor selects interested service identification to identify as target service).
Carrier-frequency capture module 152, for according to the corresponding priority of service identification or to receive the business of priority ranking Identification list selects to receive the industry of energy while received M higher priority in the range of ability is supported in the PC5 multi-carrier frequency Corresponding carrier frequency be engaged in as reception carrier, the M is the integer more than or equal to 1.
Specifically, carrier-frequency capture module 152 can be used for receiving ability information according to the PC5 multi-carrier frequency of V2X receiving device Determine that V2X receiving device cannot be simultaneously when each target service identifies and receives V2X business datum on corresponding carrier frequency, according to each Target service identifies the sequence of corresponding priority from high to low, selects to receive the range that ability information is supported in PC5 multi-carrier frequency It is interior can simultaneously received M carrier frequency as reception carrier；M is the integer more than or equal to 1, and PC5 multi-carrier frequency receives ability information packet It includes support while carrying out the received frequency band combination band combination information of PC5, while supporting the received frequency band of PC5 and Uu Combine at least one of band combination information and receives link Rx chain information.
It should be understood that the function of above-mentioned each module can be realized by the processor of V2X receiving device.
The present embodiment additionally provides a kind of V2X receiving device, and shown in Figure 16, V2X receiving device includes third Processor 161, third memory 162 and third communication bus 163；
Third communication bus 163 is for realizing the connection communication between third processor 161 and third memory 162；
Third processor 161 is for executing one or more third program stored in third memory 162, to realize The step of PC5 carrier frequency selecting method as described above；
Or,
Third processor 161 is for executing one or more the 4th program stored in third memory 162, to realize The step of V2X business datum method of reseptance as described above.
The present embodiment additionally provides a kind of computer storage medium, the computer-readable recording medium storage have one or Multiple programs, one or more of programs are executed by one or more processor, to realize PC5 carrier frequency as described above The step of selection method.
To facilitate the understanding of the present invention, the present embodiment is to show with the reception carrier selection method of a complete recipient UE Example is illustrated, shown in Figure 17, comprising:
S171: recipient UE obtains service identification and corresponding priority value or service identification list.
UE can receive service identification and corresponding priority value or service identification list from base station.Optionally, business mark Knowing list is the list that base station is ranked up according to the priority of business, for example, the business of highest priority makes number one, according to It is secondary to analogize.Base station can send service identification and corresponding priority or business to UE by system message or the proprietary signaling of RRC Identification list.Or UE can be based on pre-configuration mode or from V2X control function or V2X application Server obtains service identification and corresponding priority or service identification list.
S172: recipient UE determines itself interested V2X service identification, and according to V2X service identification and V2X carrier frequency Mapping relations obtain the received V2X carrier frequency set of progress interested.
S173: recipient UE according to itself PC5CA receive ability determination can while listening for carrier frequency set, and carry out carrier frequency Selection.
In this step, if UE cannot be monitored in its interested V2X carrier frequency set simultaneously, according to service identification and Corresponding priority or service identification list select in interested V2X business from high to low according to the priority of business Can while listening for V2X business.Finally, recipient UE according to can while listening for V2X business and V2X service identification and V2X The mapping relations of carrier frequency obtain need to while listening for carrier frequency set.Specifically, UE PC5CA receive ability information include it is following it One or combination: 1) carrying out the received band combination information of PC5 simultaneously；2) the received band of PC5/Uu is carried out simultaneously Combination information；3) Rx chain quantity；
Such as V2X business 1 can be transmitted on frequency 1,2, V2X business 2 can be uploaded in frequency 3,4,5 Defeated, V2X business 3 can be transmitted on frequency 6,7, and priority sorts from high to low are as follows: V2X business 1, V2X business 2, V2X Business 3, it is assumed that UE is interested in V2X business 1,2,4, but according to the PC5CA ability of UE can only simultaneously on two PC5 frequency points it is same When monitor, then UE determine only is monitored on 1 corresponding f1 and f2 of V2X business, thus guarantee to interested high priority Business datum received, promote the satisfaction of user experience.
Obviously, those skilled in the art should be understood that each module of the embodiments of the present invention or each step can be used General computing device realizes that they can be concentrated on a single computing device, or be distributed in multiple computing device institutes On the network of composition, optionally, they can be realized with the program code that computing device can perform, it is thus possible to by them It is stored in computer storage medium (ROM/RAM, magnetic disk, CD) and is performed by computing device, and in some cases, it can With the steps shown or described are performed in an order that is different from the one herein, or they are fabricated to each integrated circuit dies Block, or single integrated circuit module is maked multiple modules or steps in them to realize.So the present invention does not limit It is combined in any specific hardware and software.
The above content is combining specific embodiment to be further described to made by the embodiment of the present invention, cannot recognize Fixed specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, Without departing from the inventive concept of the premise, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention Protection scope.

Claims (21)

1. a kind of PC5 carrier frequency selecting method, comprising:
The first of the V2X business datum is obtained according to the service identification of V2X business datum and service identification and carrier frequency mapping relations Beginning candidate carrier frequencies set；
The transmission carrier frequency of the V2X business datum is selected from the initial candidate carrier frequency set according to carrier frequency selection information.
2. PC5 carrier frequency selecting method as described in claim 1, which is characterized in that the carrier frequency selection information includes synchronous ginseng Examine timing information, service quality QoS information, V2X sending ending equipment PC5 multi-carrier frequency transmitting capacity information and carrier frequency selection control letter At least one of breath；
Carrier frequency selection control information include Logic Channel Identifier, logic channel group mark, target identification, resource pool information, Carrier frequency list, CBR threshold value, multi-carrier frequency instruction information, is used to determine whether the information using multi-carrier frequency, is used for carrier frequency quantity Determine at least one of the information of carrier frequency quantity, carrier frequency data distribution ratio；
It is described to be used to determine whether that using the information of multi-carrier frequency include at least one of:
Adjacent service packet priority PPPP priority threshold value；Data rate data rate data rate threshold value；Buffering Area's data volume buffer size threshold value；Reliability reliability threshold value；Packet delay delay budget budget thresholding Value；
It is described to be used to determine that the information of carrier frequency quantity includes at least one of:
Buffer area data volume buffer size range and corresponding carrier frequency quantity；Data rate data rate range with it is corresponding Carrier frequency quantity；Data reliability reliability range and corresponding carrier frequency quantity；Packet Delay budget packet delay Budget range and buffer size range and corresponding carrier frequency quantity；Priority and corresponding carrier frequency quantity.
3. PC5 carrier frequency selecting method as described in claim 1, which is characterized in that the carrier frequency selection control information, which passes through, is Message of uniting or the proprietary signaling of RRC are obtained from base station, or are obtained by being pre-configured, or are obtained from V2X control function, Or it is obtained from V2X application server.
4. PC5 carrier frequency selecting method as claimed in claim 2, which is characterized in that described to select information from described according to carrier frequency The transmission carrier frequency for selecting the V2X business datum in initial candidate carrier frequency set includes:
When carrier frequency selection control information includes the CBR threshold value, by the initial candidate carrier frequency set, on carrier frequency The channel busy ratio CBR measured value of V2X resource pool is greater than the channel busy ratio CBR threshold value of V2X resource pool on the carrier frequency Carrier frequency exclude；
Alternatively, the channel busy ratio CBR measured value of V2X resource pool is greater than on carrier frequency by the initial candidate carrier frequency set The carrier frequency of the channel busy ratio CBR threshold value of V2X resource pool excludes on the carrier frequency, and will be in the initial candidate carrier frequency set Carrier frequency, be arranged successively according to the channel busy ratio CBR measured value sequence from small to large of V2X resource pool on each carrier frequency.
5. PC5 carrier frequency selecting method according to any one of claims 1-4, which is characterized in that described from effective candidate It further include judging whether the V2X business datum uses before the transmission carrier frequency for selecting the V2X business datum in carrier frequency set Multi-carrier frequency transmission；
It is described to judge whether the V2X business datum uses multi-carrier frequency to transmit and include:
Indicate that information judges whether the V2X business datum uses multi-carrier frequency to transmit according to multi-carrier frequency；
Or, judging the V2X business datum with corresponding configured transmission threshold value according to the configured transmission of the V2X business datum Whether transmitted using multi-carrier frequency；
Or, judging whether the V2X business datum adopts with corresponding carrier frequency quantity according to the configured transmission of the V2X business datum It is transmitted with multi-carrier frequency；
The configured transmission includes at least one of buffer area data volume buffer size and service quality QoS information, described Service quality QoS information includes adjacent service packet priority PPPP, data rate data rate, data reliability At least one of reliability, Packet Delay budget packet delay budget.
6. PC5 carrier frequency selecting method according to any one of claims 1-4, which is characterized in that according to carrier frequency select information from The transmission carrier frequency for selecting the V2X business datum in the initial candidate carrier frequency set includes:
Determine that the V2X business data transmission need to adopt with corresponding carrier frequency quantity according to the configured transmission of the V2X business datum Carrier frequency quantity, or according to received carrier frequency quantity determine carrier frequency quantity that the V2X business data transmission need to use；
Selected the carrier frequency of corresponding number as the V2X industry from effective candidate carrier frequencies set according to determining carrier frequency quantity The transmission carrier frequency for data of being engaged in；
Or,
A carrier frequency is selected to transmit the V2X business datum from the initial candidate carrier frequency set；
Determine whether the carrier frequency of selection meets the transmission demand of the V2X business datum according to snoop results, if not, again from described Initial candidate carrier frequency set selects a carrier frequency to transmit the V2X business datum, until the carrier frequency number of selection meets institute State the transmission demand of V2X business datum；
The configured transmission includes at least one of buffer area data volume buffer size and service quality QoS information, described Service quality QoS information includes adjacent service packet priority PPPP, data rate data rate, data reliability At least one of reliability, Packet Delay budget packet delay budget.
7. PC5 carrier frequency selecting method as described in claim 1, which is characterized in that select information from described initial according to carrier frequency Before the transmission carrier frequency for selecting the V2X business datum in candidate carrier frequencies set, further includes:
RRC information is sent to base station, the RRC information includes carrier frequency selection auxiliary information, and the carrier frequency selects auxiliary information packet Include V2X carrier frequency information.
8. PC5 carrier frequency selecting method as claimed in claim 7, which is characterized in that the carrier frequency selection auxiliary information includes same Walk timing information, the PC5 multi-carrier frequency transmitting capacity information of the V2X sending ending equipment, Logic Channel Identifier, logic channel group mark At least one of knowledge, target identification, QoS information, carrier frequency quantity, multi-carrier frequency instruction information；The synchronous timing information includes Following one or combination: synchronous reference type；Covering situation locating for synchronisation source；The absolute timing value of synchronisation source；The QoS information packet Include adjacent service packet priority PPPP, data rate data rate, data reliability reliability, Packet Delay At least one of budget packet delay budget.
9. PC5 carrier frequency selecting method as claimed in claim 2, which is characterized in that select information from described initial according to carrier frequency After the transmission carrier frequency for selecting the V2X business datum in candidate carrier frequencies set, further includes:
According to the data volume size for needing transmission on each carrier frequency of carrier frequency data distribution ratio-dependent selection.
10. a kind of PC5 carrier frequency selecting method, comprising:
It receives the carrier frequency that V2X sending ending equipment is sent and selects auxiliary information, the carrier frequency selection auxiliary information includes according to V2X industry The service identification and service identification and carrier frequency mapping relations for data of being engaged in obtain the initial candidate carrier frequency collection of the V2X business datum It closes；
Carrier frequency selection control information is sent to the V2X sending ending equipment.
11. PC5 carrier frequency selecting method as claimed in claim 10, which is characterized in that the carrier frequency selection controls information and includes Logic Channel Identifier, logic channel group mark, target identification, resource pool information, carrier frequency list, carrier frequency quantity, CBR threshold value, Multi-carrier frequency instruction information is used to determine whether the information using multi-carrier frequency, the information for determining carrier frequency quantity, carrier frequency data point At least one of stream ratio；
It is described to be used to determine whether that using the information of multi-carrier frequency include at least one of:
Adjacent service packet priority PPPP threshold value；Data rate data rate threshold value；Buffer area data volume buffer Size threshold value；Reliability reliability threshold value；Packet delay delay budget budget threshold value；
It is described to be used to determine that the information of carrier frequency quantity includes at least one of:
Buffer area data volume buffer size range and corresponding carrier frequency quantity；Data rate data rate range with it is corresponding Carrier frequency quantity；Data reliability reliability range and corresponding carrier frequency quantity；Packet Delay budget packet delay Budget range and buffer size range and corresponding carrier frequency quantity；Priority and corresponding carrier frequency quantity.
12. PC5 carrier frequency selecting method as described in claim 10 or 11 characterized by comprising the carrier frequency selection auxiliary Information includes at least one of the PC5 multi-carrier frequency transmitting capacity information of synchronous timing information, the V2X sending ending equipment.
13. PC5 carrier frequency selecting method as described in claim 10 or 11, which is characterized in that the carrier frequency selects auxiliary information It further include Logic Channel Identifier, logic channel group identifies, target identification, QoS information, carrier frequency quantity, and multi-carrier frequency indicates information, At least one of V2X carrier frequency；The synchronous timing information includes following one or combination: synchronous reference type, synchronisation source institute Locate covering situation, the absolute timing value of synchronisation source.
14. a kind of PC5 carrier frequency selecting method, comprising:
Obtain the corresponding priority of service identification or the service identification list with priority ranking；
According to the corresponding priority of service identification or with the service identification list of priority ranking, select in the PC5 multi-carrier frequency The corresponding carrier frequency of business of energy while received M higher priority is as reception carrier, institute in the range of reception ability is supported Stating M is the integer more than or equal to 1.
15. PC5 carrier frequency selecting method as claimed in claim 14, which is characterized in that the corresponding priority of the service identification Or it is obtained by system message or the proprietary signaling of RRC from base station with the service identification list of priority ranking, or pass through pre-configuration It obtains, or is obtained from V2X control function, or obtained from V2X application server.
16. a kind of PC5 carrier frequency selection device, comprising:
Initial selected module, for obtaining institute according to the service identification and service identification and carrier frequency mapping relations of V2X business datum State the initial candidate carrier frequency set of V2X business datum；
Carrier frequency determining module, for selecting information to select the V2X business from the initial candidate carrier frequency set according to carrier frequency The transmission carrier frequency of data.
17. a kind of PC5 carrier frequency selection device, comprising:
Information receiving module, the carrier frequency for receiving the transmission of V2X sending ending equipment select auxiliary information, the carrier frequency selection auxiliary Information includes obtaining the V2X business datum according to the service identification and service identification and carrier frequency mapping relations of V2X business datum Initial candidate carrier frequency set；
Configuration processing module, for sending carrier frequency selection control information to the V2X sending ending equipment.
18. a kind of PC5 carrier frequency selection device, comprising:
Business obtains module, for obtaining the corresponding priority of service identification or with the service identification list of priority ranking；
Carrier-frequency capture module, for according to the corresponding priority of service identification or to receive the service identification of priority ranking column Table selects the business of energy while received M higher priority in the range of the PC5 multi-carrier frequency receives ability support corresponding Carrier frequency as reception carrier, the M is the integer more than or equal to 1.
19. a kind of V2X sending ending equipment, the V2X sending ending equipment includes first processor, first memory and the first communication Bus；
First communication bus is for realizing the connection communication between first processor and first memory；
The first processor is for executing one or more first program stored in first memory, to realize such as right It is required that described in any one of 1 to 9 the step of PC5 carrier frequency selecting method.
20. a kind of base station, the base station includes second processor, second memory and the second communication bus；
Second communication bus is for realizing the connection communication between second processor and second memory；
The second processor is for executing two stored in second memory or multiple second sequences, to realize as right is wanted Described in asking any one of 10 to 13 the step of PC5 carrier frequency selecting method.
21. a kind of V2X receiving device, the V2X receiving device includes third processor, third memory and the third communication Bus；
The third communication bus is for realizing the connection communication between third processor and third memory；
The third processor is for executing one or more third program stored in third memory, to realize such as right It is required that described in 14 or 15 the step of PC5 carrier frequency selecting method.
CN201711140295.2A 2017-11-16 2017-11-16 PC5 carrier frequency selecting method, device, equipment and base station Pending CN109803243A (en)

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