CN105681439A - Resource scheduling method and device used for vehicle communication, terminal and base station - Google Patents

Resource scheduling method and device used for vehicle communication, terminal and base station Download PDF

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Publication number
CN105681439A
CN105681439A CN201610064326.XA CN201610064326A CN105681439A CN 105681439 A CN105681439 A CN 105681439A CN 201610064326 A CN201610064326 A CN 201610064326A CN 105681439 A CN105681439 A CN 105681439A
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CN
China
Prior art keywords
described
vehicle communication
terminal
configuration parameter
base station
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CN201610064326.XA
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Chinese (zh)
Inventor
郑倩
雷艺学
张云飞
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宇龙计算机通信科技(深圳)有限公司
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Priority to CN201610064326.XA priority Critical patent/CN105681439A/en
Publication of CN105681439A publication Critical patent/CN105681439A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L29/00Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
    • H04L29/02Communication control; Communication processing
    • H04L29/06Communication control; Communication processing characterised by a protocol
    • H04L29/08Transmission control procedure, e.g. data link level control procedure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/12Network-specific arrangements or communication protocols supporting networked applications adapted for proprietary or special purpose networking environments, e.g. medical networks, sensor networks, networks in a car or remote metering networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/30Network-specific arrangements or communication protocols supporting networked applications involving profiles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/1263Schedule usage, i.e. actual mapping of traffic onto schedule; Multiplexing of flows into one or several streams; Mapping aspects; Scheduled allocation

Abstract

The present invention provides a resource scheduling method and device used for vehicle communication, a terminal and a base station. The resource scheduling method used for vehicle communication comprises obtaining configuration parameters, for semi-persistent scheduling on side links, allocated by the base station; determining time-frequency resources used for periodically transmitting vehicle communication information according to the configuration parameters; and periodically transmitting the vehicle communication information based on the time-frequency resources. According to the technical scheme provided by the present invention, when the terminal carries out vehicle-to-vehicle (V2V) business, the base station can allocate the time-frequency resources to the terminal by using a semi-persistent scheduling mechanism, thereby reducing expenditure on physical downlink control channels (PDCCH), and thus more resources of the base station can be used for scheduling other terminals, thereby raising the resource use efficiency.

Description

For the resource regulating method of vehicle communication, device, terminal and base station

Technical field

The present invention relates to communication technical field, in particular to a kind of resource regulating method for vehicle communication, a kind of resource scheduling device for vehicle communication, a kind of terminal and a kind of base station.

Background technology

V2X (VehicletoX, car to the communication of specific objective) is the 3GPPRAN#68 project ratifying to set up, and main research is based on the vehicle data transmission scheme of 3GPP communication protocol. V2X includes V2V (VehicletoVehicle, car to car communication), V2P (VehicletoPedestrian, car communicates), V2I (communication of VehicletoInfrastructure, Che Dao road) etc. to people. V2V communicates principle, it is possible to by Uu interface (interface between subscriber equipment and base station), PC5 interface (interface between subscriber equipment and subscriber equipment) or Uu interface and the incompatible transmission realizing V2V message of PC5 interface group. Wherein, by PC5 interface realize V2V message transmission scheme as shown in Figure 1, source vehicle 102 (i.e. V2V message sending end) sends V2V message by secondary link (Sidelink, SL) to target vehicle (vehicle 104 as shown in Figure 1, vehicle 106 and vehicle 108).

At present, D2D (DevicetoDevice, the direct-connected communication of terminal) resource allocation methods comprises both of which, i.e. scheduling method and Resource Pool Pattern. In the scheduled mode, the resource of D2D communication is allocated by base station (eNB). But, current Rel-13D2D is dynamic dispatching mechanism based on the resource allocation methods of eNB scheduling method, namely at each TTI (TransmissionTimeInterval, Transmission Time Interval) will be that UE (UserEquipment, subscriber equipment) re-issues SLgrant to indicate the running time-frequency resource of distribution.

Theoretically, current dynamic dispatching mechanism can not be applicable to all of V2V type of service. As shown in table 1, some V2V business is the periodic broadcast message that packet is less and size is basically unchanged or the periodic broadcast message triggered based on event, if all adopting the mechanism of dynamic dispatching, then can increase PDCCH (PhysicalDownlinkControlChannel, Physical Downlink Control Channel) expense, and then there will be the problem that the level of resources utilization is relatively low.

Table 1

Therefore, how can reducing the vehicle communication expense to PDCCH, to avoid adopting dynamic dispatching mechanism to cause, the level of resources utilization is relatively low becomes technical problem urgently to be resolved hurrily.

Summary of the invention

The present invention be based on above-mentioned technical problem at least one, propose a kind of new resource scheduling scheme for vehicle communication, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization.

In view of this, according to the first aspect of the invention, it is proposed that a kind of resource regulating method for vehicle communication, including: obtain the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution; According to described configuration parameter, it is determined that for the running time-frequency resource of cyclical transmission vehicle communication message; Based on described running time-frequency resource, periodically transmit described vehicle communication message.

In this technical scheme, terminal is by obtaining the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution, to determine the running time-frequency resource of cyclical transmission vehicle communication message according to configuration parameter, and periodically transmit vehicle communication information according to the running time-frequency resource determined, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, achieve " primary distribution, repeatedly use " purpose, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization, solve the problem adopting semi-persistent scheduling machine-processed in correlation technique and to cause the level of resources utilization relatively low.

In technique scheme, it is preferable that obtain the step of the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution, specifically include:

Receive the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to terminal; Or

Send the configuring request of semi-persistent scheduling to described base station, and receive the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to the terminal comprised in described configuring request.

In this technical scheme, base station can be come actively to terminal distribution configuration parameter according to the characteristic information known in advance on the one hand; On the other hand, terminal can also send the configuring request of semi-persistent scheduling to base station, with trigger base station to terminal distribution configuration parameter.

Wherein, the characteristic information of described vehicle communication business includes: whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.

In any of the above-described technical scheme, it is preferable that also include:

Receive the described configuration parameter that described base station is redistributed; Or the reconfiguration request to described base station transmission semi-persistent scheduling, and receive described base station according to described reconfiguration request again to the described configuration parameter of described terminal distribution;

According to the described configuration parameter that described base station is redistributed, redefine the running time-frequency resource of vehicle communication message described in cyclical transmission, and periodically transmit described vehicle communication message based on the running time-frequency resource redefined.

In this technical scheme, on the one hand, if base station needs to adjust the configuration parameter to terminal distribution, then can actively the configuration parameter redistributed be sent to terminal;On the other hand, terminal can also send reconfiguration request (the characteristic information of the V2V business carried out such as terminal there occurs change) to base station, with trigger base station again to terminal distribution configuration parameter.

In any of the above-described technical scheme, it is preferable that according to described configuration parameter, it is determined that for the step of the running time-frequency resource of cyclical transmission vehicle communication message, specifically include:

Monitor the physical down control information that described base station sends, and the RNTI (RadioNetworkTemporaryIdentity of secondary link communication is carried out according to the terminal comprised in described configuration parameter, Radio Network Temporary Identifier), demodulate described running time-frequency resource; And

According to the semi-static scheduling cycle to described terminal distribution comprised in described configuration parameter, it is determined that for transmitting the life cycle of the running time-frequency resource of described vehicle communication message.

Specifically, terminal can monitor the physical down control information of base station transmission by monitoring PDCCH or e-PDCCH (EnhancedPDCCH, the Physical Downlink Control Channel of enhancing).

In any of the above-described technical scheme, it is preferable that also include:

When the duration of described vehicle communication message reaches scheduled duration, described running time-frequency resource is stopped using to transmit described vehicle communication message; Or

When receiving the instruction information discharging described running time-frequency resource that described base station sends, described running time-frequency resource is stopped using to transmit described vehicle communication message.

In this technical scheme, on the one hand, terminal is when the duration determining vehicle communication message reaches scheduled duration, it is possible to stop using the running time-frequency resource that base station is distributed, now base station is determined also according to the duration of vehicle communication message and has been reached scheduled duration, it is possible to discharge this running time-frequency resource; On the other hand, base station can actively determine the need for dischargeing the running time-frequency resource distributing to terminal, if desired discharges the running time-frequency resource distributing to terminal, then send to terminal and indicate information accordingly.

According to the second aspect of the invention, it is also proposed that a kind of resource regulating method for vehicle communication, including: on secondary link, carry out the configuration parameter of semi-persistent scheduling to terminal distribution; Described configuration parameter is sent to described terminal; Send physical down to described terminal and control information, so that described terminal controls information based on described configuration parameter and described physical down determines the running time-frequency resource for cyclical transmission vehicle communication message.

In this technical scheme, base station by carrying out the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link, so that terminal determines the running time-frequency resource of cyclical transmission vehicle communication message according to configuration parameter, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, achieve " primary distribution, repeatedly use " purpose, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization, solve the problem adopting semi-persistent scheduling machine-processed in correlation technique and to cause the level of resources utilization relatively low.

In technique scheme, it is preferable that carry out the step of the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link, specifically include:

The characteristic information of the vehicle communication business carried out according to the described terminal known is to configuration parameter described in described terminal distribution; Or

Receiving the configuring request of semi-persistent scheduling that described terminal sends, the characteristic information of the vehicle communication business carried out according to the terminal comprised in described configuring request is to configuration parameter described in described terminal distribution.

In this technical scheme, base station can be come actively to terminal distribution configuration parameter according to the characteristic information known in advance on the one hand; On the other hand, terminal can also send the configuring request of semi-persistent scheduling to base station, base station when receiving this configuring request to terminal distribution configuration parameter.

Wherein, the characteristic information of described vehicle communication business includes: whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.

In any of the above-described technical scheme, it is preferable that also include:

When needing to adjust the described configuration parameter to described terminal distribution, redistribute described configuration parameter to described terminal, and the described configuration parameter redistributed is sent to described terminal; Or

Receive the reconfiguration request of the semi-persistent scheduling that described terminal sends, be the described configuration parameter of described terminal distribution again according to described reconfiguration request, and the described configuration parameter redistributed is sent to described terminal.

In this technical scheme, on the one hand, if base station needs to adjust the configuration parameter to terminal distribution, then can actively the configuration parameter redistributed be sent to terminal; On the other hand, terminal can also send reconfiguration request (the characteristic information of the V2V business carried out such as terminal there occurs change) to base station, base station when receiving this reconfiguration request again to terminal distribution configuration parameter.

In any of the above-described technical scheme, it is preferable that before the described step of configuration parameter carrying out semi-persistent scheduling to terminal distribution on secondary link, also include:

The characteristic information according to the vehicle communication business that described terminal carries out, it may be judged whether permit described terminal and use semi-persistent scheduling mechanism on secondary link;

If it is determined that permit described terminal to use semi-persistent scheduling mechanism on secondary link, then perform the step of the described configuration parameter carrying out semi-persistent scheduling to terminal distribution on secondary link.

In this technical scheme, by judging whether that permit terminal uses semi-persistent scheduling mechanism on secondary link, it is possible to accurately determine out the terminal that can carry out semi-persistent scheduling. Specifically, the characteristic information of the vehicle communication business carried out such as terminal shows that vehicle communication message is not periodic message, it is determined that disapproves this terminal and uses semi-persistent scheduling mechanism on secondary link; If the characteristic information of the vehicle communication business that terminal carries out for another example shows that vehicle communication message is that the size of periodic message and message is lower than certain threshold value, it is determined that permit this terminal and use semi-persistent scheduling mechanism on secondary link.

In any of the above-described technical scheme, it is preferable that also include:

When the duration of described vehicle communication message reaches scheduled duration, discharge described running time-frequency resource; Or

Sending the instruction information discharging described running time-frequency resource to described terminal, and discharge described running time-frequency resource, described instruction information is used for indicating described terminal to stop using described running time-frequency resource to transmit described vehicle communication message.

In this technical scheme, on the one hand, terminal is when the duration determining vehicle communication message reaches scheduled duration, it is possible to stop using the running time-frequency resource that base station is distributed, now base station is determined according to the duration of vehicle communication message and has been reached scheduled duration, it is possible to discharge this running time-frequency resource; On the other hand, base station can actively determine the need for dischargeing the running time-frequency resource distributing to terminal, if desired discharges the running time-frequency resource distributing to terminal, then send to terminal and indicate information accordingly.

According to the third aspect of the invention we, it is also proposed that a kind of resource scheduling device for vehicle communication, including: acquiring unit, for obtaining the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution; Determine unit, for according to described configuration parameter, it is determined that for the running time-frequency resource of cyclical transmission vehicle communication message; Transmission unit, for based on described running time-frequency resource, periodically transmitting described vehicle communication message.

In this technical scheme, terminal is by obtaining the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution, to determine the running time-frequency resource of cyclical transmission vehicle communication message according to configuration parameter, and periodically transmit vehicle communication information according to the running time-frequency resource determined, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, achieve " primary distribution, repeatedly use " purpose, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization, solve the problem adopting semi-persistent scheduling machine-processed in correlation technique and to cause the level of resources utilization relatively low.

In technique scheme, it is preferable that described acquiring unit includes:

First receives unit, for receiving the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to terminal; Or

First interactive unit, for sending the configuring request of semi-persistent scheduling to described base station, and receives the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to the terminal comprised in described configuring request.

In this technical scheme, base station can be come actively to terminal distribution configuration parameter according to the characteristic information known in advance on the one hand; On the other hand, terminal can also send the configuring request of semi-persistent scheduling to base station, with trigger base station to terminal distribution configuration parameter.

Wherein, the characteristic information of described vehicle communication business includes: whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.

In any of the above-described technical scheme, it is preferable that also include: second receives unit, for receiving the described configuration parameter that described base station is redistributed; Or second interactive unit, for sending the reconfiguration request of semi-persistent scheduling to described base station, and receive described base station according to described reconfiguration request again to the described configuration parameter of described terminal distribution;

Described determine that unit is additionally operable to, according to the described configuration parameter that described base station is redistributed, redefine the running time-frequency resource of vehicle communication message described in cyclical transmission;

Described transmission unit is additionally operable to, and periodically transmits described vehicle communication message based on the described running time-frequency resource determining that unit redefines.

In this technical scheme, on the one hand, if base station needs to adjust the configuration parameter to terminal distribution, then can actively the configuration parameter redistributed be sent to terminal; On the other hand, terminal can also send reconfiguration request (the characteristic information of the V2V business carried out such as terminal there occurs change) to base station, with trigger base station again to terminal distribution configuration parameter.

In any of the above-described technical scheme, it is preferable that described determine unit specifically for:

Monitor the physical down that described base station sends and control information, and carry out the RNTI of secondary link communication according to the terminal comprised in described configuration parameter, demodulate described running time-frequency resource;And

According to the semi-static scheduling cycle to described terminal distribution comprised in described configuration parameter, it is determined that for transmitting the life cycle of the running time-frequency resource of described vehicle communication message.

Specifically, terminal can monitor the physical down control information of base station transmission by monitoring PDCCH or e-PDCCH.

In any of the above-described technical scheme, it is preferable that described transmission unit is additionally operable to:

When the duration of described vehicle communication message reaches scheduled duration, described running time-frequency resource is stopped using to transmit described vehicle communication message; Or

When receiving the instruction information discharging described running time-frequency resource that described base station sends, described running time-frequency resource is stopped using to transmit described vehicle communication message.

In this technical scheme, on the one hand, terminal is when the duration determining vehicle communication message reaches scheduled duration, it is possible to stop using the running time-frequency resource that base station is distributed, now base station is determined also according to the duration of vehicle communication message and has been reached scheduled duration, it is possible to discharge this running time-frequency resource; On the other hand, base station can actively determine the need for dischargeing the running time-frequency resource distributing to terminal, if desired discharges the running time-frequency resource distributing to terminal, then send to terminal and indicate information accordingly.

According to the fourth aspect of the invention, it is also proposed that a kind of resource scheduling device for vehicle communication, including: allocation units, for carrying out the configuration parameter of semi-persistent scheduling on secondary link to terminal distribution; Transmitting element, for described configuration parameter is sent to described terminal, and control information for sending physical down to described terminal, so that described terminal controls information based on described configuration parameter and described physical down determines the running time-frequency resource for cyclical transmission vehicle communication message.

In this technical scheme, base station by carrying out the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link, so that terminal determines the running time-frequency resource of cyclical transmission vehicle communication message according to configuration parameter, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, achieve " primary distribution, repeatedly use " purpose, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization, solve the problem adopting semi-persistent scheduling machine-processed in correlation technique and to cause the level of resources utilization relatively low.

In technique scheme, it is preferable that described allocation units specifically for:

The characteristic information of the vehicle communication business carried out according to the described terminal known is to configuration parameter described in described terminal distribution; Or

Receiving the configuring request of semi-persistent scheduling that described terminal sends, the characteristic information of the vehicle communication business carried out according to the terminal comprised in described configuring request is to configuration parameter described in described terminal distribution.

In this technical scheme, base station can be come actively to terminal distribution configuration parameter according to the characteristic information known in advance on the one hand; On the other hand, terminal can also send the configuring request of semi-persistent scheduling to base station, base station when receiving this configuring request to terminal distribution configuration parameter.

Wherein, the characteristic information of described vehicle communication business includes: whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.

In any of the above-described technical scheme, it is preferable that described allocation units are additionally operable to:

When needing to adjust the described configuration parameter to described terminal distribution, redistribute described configuration parameter to described terminal, and the described configuration parameter redistributed is sent to described terminal;Or

Receive the reconfiguration request of the semi-persistent scheduling that described terminal sends, be the described configuration parameter of described terminal distribution again according to described reconfiguration request, and the described configuration parameter redistributed is sent to described terminal.

In this technical scheme, on the one hand, if base station needs to adjust the configuration parameter to terminal distribution, then can actively the configuration parameter redistributed be sent to terminal; On the other hand, terminal can also send reconfiguration request (the characteristic information of the V2V business carried out such as terminal there occurs change) to base station, base station when receiving this reconfiguration request again to terminal distribution configuration parameter.

In any of the above-described technical scheme, it is preferable that also include:

Judging unit, at described allocation units to before configuration parameter described in described terminal distribution, the characteristic information according to the vehicle communication business that described terminal carries out, it may be judged whether permit described terminal and use semi-persistent scheduling mechanism on secondary link;

Described allocation units specifically for, when described judging unit judges that permit described terminal uses semi-persistent scheduling mechanism on secondary link, perform to the operation of configuration parameter described in described terminal distribution.

In this technical scheme, by judging whether that permit terminal uses semi-persistent scheduling mechanism on secondary link, it is possible to accurately determine out the terminal that can carry out semi-persistent scheduling. Specifically, the characteristic information of the vehicle communication business carried out such as terminal shows that vehicle communication message is not periodic message, it is determined that disapproves this terminal and uses semi-persistent scheduling mechanism on secondary link; If the characteristic information of the vehicle communication business that terminal carries out for another example shows that vehicle communication message is that the size of periodic message and message is lower than certain threshold value, it is determined that permit this terminal and use semi-persistent scheduling mechanism on secondary link.

In any of the above-described technical scheme, it is preferable that also include:

Resource releasing unit, for when the duration of described vehicle communication message reaches scheduled duration, discharging described running time-frequency resource; Or

Processing unit, for sending the instruction information discharging described running time-frequency resource to described terminal, and discharges described running time-frequency resource, and described instruction information is used for indicating described terminal to stop using described running time-frequency resource to transmit described vehicle communication message.

In this technical scheme, on the one hand, terminal is when the duration determining vehicle communication message reaches scheduled duration, it is possible to stop using the running time-frequency resource that base station is distributed, now base station is determined according to the duration of vehicle communication message and has been reached scheduled duration, it is possible to discharge this running time-frequency resource; On the other hand, base station can actively determine the need for dischargeing the running time-frequency resource distributing to terminal, if desired discharges the running time-frequency resource distributing to terminal, then send to terminal and indicate information accordingly.

According to the fifth aspect of the invention, it is also proposed that a kind of terminal, including the resource scheduling device for vehicle communication as described in the above-mentioned third aspect.

According to the sixth aspect of the invention, it is also proposed that a kind of base station, including the resource scheduling device for vehicle communication as described in above-mentioned fourth aspect.

By above technical scheme, making terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, and then can reduce the expense to PDCCH, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization.

Accompanying drawing explanation

Fig. 1 illustrates the schematic diagram being realized the transmission of V2V message by PC5 interface;

Fig. 2 illustrates the schematic flow diagram of the resource regulating method for vehicle communication according to an embodiment of the invention;

Fig. 3 illustrates the schematic block diagram of the resource scheduling device for vehicle communication according to an embodiment of the invention;

Fig. 4 illustrates the schematic block diagram of terminal according to an embodiment of the invention;

Fig. 5 illustrates the schematic flow diagram of the resource regulating method for vehicle communication according to another embodiment of the invention;

Fig. 6 illustrates the schematic block diagram of the resource scheduling device for vehicle communication according to another embodiment of the invention;

Fig. 7 illustrates the schematic block diagram of base station according to an embodiment of the invention;

Fig. 8 illustrates the handling process schematic diagram of the initial phase of semi-persistent scheduling mechanism according to an embodiment of the invention;

Fig. 9 illustrates the handling process schematic diagram activating the stage of semi-persistent scheduling mechanism according to an embodiment of the invention;

Figure 10 illustrates the handling process schematic diagram of the failure stage of semi-persistent scheduling mechanism according to an embodiment of the invention;

Figure 11 illustrates the overall process flow schematic diagram of semi-persistent scheduling mechanism according to an embodiment of the invention.

Detailed description of the invention

In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail. It should be noted that when not conflicting, embodiments herein and the feature in embodiment can be mutually combined.

Elaborate a lot of detail in the following description so that fully understanding the present invention; but; the present invention can also adopt other to be different from other modes described here to implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.

Fig. 2 illustrates the schematic flow diagram of the resource regulating method for vehicle communication according to an embodiment of the invention.

As in figure 2 it is shown, the resource regulating method for vehicle communication according to an embodiment of the invention, including:

Step 202, obtains the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution;

Step 204, according to described configuration parameter, it is determined that for the running time-frequency resource of cyclical transmission vehicle communication message;

Step 206, based on described running time-frequency resource, periodically transmits described vehicle communication message.

In this technical scheme, terminal is by obtaining the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution, to determine the running time-frequency resource of cyclical transmission vehicle communication message according to configuration parameter, and periodically transmit vehicle communication information according to the running time-frequency resource determined, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, achieve " primary distribution, repeatedly use " purpose, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization, solve the problem adopting semi-persistent scheduling machine-processed in correlation technique and to cause the level of resources utilization relatively low.

In technique scheme, it is preferable that obtain the step of the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution, specifically include:

Receive the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to terminal;Or

Send the configuring request of semi-persistent scheduling to described base station, and receive the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to the terminal comprised in described configuring request.

In this technical scheme, base station can be come actively to terminal distribution configuration parameter according to the characteristic information known in advance on the one hand; On the other hand, terminal can also send the configuring request of semi-persistent scheduling to base station, with trigger base station to terminal distribution configuration parameter.

Wherein, the characteristic information of described vehicle communication business includes: whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.

In any of the above-described technical scheme, it is preferable that also include:

Receive the described configuration parameter that described base station is redistributed; Or the reconfiguration request to described base station transmission semi-persistent scheduling, and receive described base station according to described reconfiguration request again to the described configuration parameter of described terminal distribution;

According to the described configuration parameter that described base station is redistributed, redefine the running time-frequency resource of vehicle communication message described in cyclical transmission, and periodically transmit described vehicle communication message based on the running time-frequency resource redefined.

In this technical scheme, on the one hand, if base station needs to adjust the configuration parameter to terminal distribution, then can actively the configuration parameter redistributed be sent to terminal; On the other hand, terminal can also send reconfiguration request (the characteristic information of the V2V business carried out such as terminal there occurs change) to base station, with trigger base station again to terminal distribution configuration parameter.

In any of the above-described technical scheme, it is preferable that according to described configuration parameter, it is determined that for the step of the running time-frequency resource of cyclical transmission vehicle communication message, specifically include:

Monitor the physical down that described base station sends and control information, and carry out the RNTI of secondary link communication according to the terminal comprised in described configuration parameter, demodulate described running time-frequency resource; And

According to the semi-static scheduling cycle to described terminal distribution comprised in described configuration parameter, it is determined that for transmitting the life cycle of the running time-frequency resource of described vehicle communication message.

Specifically, terminal can monitor the physical down control information of base station transmission by monitoring PDCCH or e-PDCCH (EnhancedPDCCH, the Physical Downlink Control Channel of enhancing).

In any of the above-described technical scheme, it is preferable that also include:

When the duration of described vehicle communication message reaches scheduled duration, described running time-frequency resource is stopped using to transmit described vehicle communication message; Or

When receiving the instruction information discharging described running time-frequency resource that described base station sends, described running time-frequency resource is stopped using to transmit described vehicle communication message.

In this technical scheme, on the one hand, terminal is when the duration determining vehicle communication message reaches scheduled duration, it is possible to stop using the running time-frequency resource that base station is distributed, now base station is determined also according to the duration of vehicle communication message and has been reached scheduled duration, it is possible to discharge this running time-frequency resource; On the other hand, base station can actively determine the need for dischargeing the running time-frequency resource distributing to terminal, if desired discharges the running time-frequency resource distributing to terminal, then send to terminal and indicate information accordingly.

Fig. 3 illustrates the schematic block diagram of the resource scheduling device for vehicle communication according to an embodiment of the invention.

As it is shown on figure 3, the resource scheduling device 300 for vehicle communication according to an embodiment of the invention, including: acquiring unit 302, determine unit 304 and transmission unit 306.

Wherein, acquiring unit 302, for obtaining the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution; Determine unit 304, for according to described configuration parameter, it is determined that for the running time-frequency resource of cyclical transmission vehicle communication message; Transmission unit 306, for based on described running time-frequency resource, periodically transmitting described vehicle communication message.

In this technical scheme, terminal is by obtaining the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution, to determine the running time-frequency resource of cyclical transmission vehicle communication message according to configuration parameter, and periodically transmit vehicle communication information according to the running time-frequency resource determined, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, achieve " primary distribution, repeatedly use " purpose, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization, solve the problem adopting semi-persistent scheduling machine-processed in correlation technique and to cause the level of resources utilization relatively low.

In technique scheme, it is preferable that described acquiring unit 302 includes:

First receives unit 3022, for receiving the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to terminal; Or

First interactive unit 3024, for sending the configuring request of semi-persistent scheduling to described base station, and receives the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to the terminal comprised in described configuring request.

In this technical scheme, base station can be come actively to terminal distribution configuration parameter according to the characteristic information known in advance on the one hand; On the other hand, terminal can also send the configuring request of semi-persistent scheduling to base station, with trigger base station to terminal distribution configuration parameter.

Wherein, the characteristic information of described vehicle communication business includes: whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.

In any of the above-described technical scheme, it is preferable that also include: second receives unit 308, for receiving the described configuration parameter that described base station is redistributed; Or second interactive unit 310, for sending the reconfiguration request of semi-persistent scheduling to described base station, and receive described base station according to described reconfiguration request again to the described configuration parameter of described terminal distribution;

Described determine that unit 304 is additionally operable to, according to the described configuration parameter that described base station is redistributed, redefine the running time-frequency resource of vehicle communication message described in cyclical transmission;

Described transmission unit 306 is additionally operable to, and periodically transmits described vehicle communication message based on the described running time-frequency resource determining that unit 304 redefines.

In this technical scheme, on the one hand, if base station needs to adjust the configuration parameter to terminal distribution, then can actively the configuration parameter redistributed be sent to terminal; On the other hand, terminal can also send reconfiguration request (the characteristic information of the V2V business carried out such as terminal there occurs change) to base station, with trigger base station again to terminal distribution configuration parameter.

In any of the above-described technical scheme, it is preferable that described determine unit 304 specifically for:

Monitor the physical down that described base station sends and control information, and carry out the RNTI of secondary link communication according to the terminal comprised in described configuration parameter, demodulate described running time-frequency resource;And

According to the semi-static scheduling cycle to described terminal distribution comprised in described configuration parameter, it is determined that for transmitting the life cycle of the running time-frequency resource of described vehicle communication message.

Specifically, terminal can monitor the physical down control information of base station transmission by monitoring PDCCH or e-PDCCH.

In any of the above-described technical scheme, it is preferable that described transmission unit 306 is additionally operable to:

When the duration of described vehicle communication message reaches scheduled duration, described running time-frequency resource is stopped using to transmit described vehicle communication message; Or

When receiving the instruction information discharging described running time-frequency resource that described base station sends, described running time-frequency resource is stopped using to transmit described vehicle communication message.

In this technical scheme, on the one hand, terminal is when the duration determining vehicle communication message reaches scheduled duration, it is possible to stop using the running time-frequency resource that base station is distributed, now base station is determined also according to the duration of vehicle communication message and has been reached scheduled duration, it is possible to discharge this running time-frequency resource; On the other hand, base station can actively determine the need for dischargeing the running time-frequency resource distributing to terminal, if desired discharges the running time-frequency resource distributing to terminal, then send to terminal and indicate information accordingly.

Fig. 4 illustrates the schematic block diagram of terminal according to an embodiment of the invention.

As shown in Figure 4, terminal 400 according to an embodiment of the invention, including: as shown in Figure 3 for the resource scheduling device 300 of vehicle communication.

Fig. 5 illustrates the schematic flow diagram of the resource regulating method for vehicle communication according to another embodiment of the invention.

As it is shown in figure 5, the resource regulating method for vehicle communication according to another embodiment of the invention, including:

Step 502, carries out the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link;

Step 504, sends described configuration parameter to described terminal;

Step 506, sends physical down to described terminal and controls information, so that described terminal controls information based on described configuration parameter and described physical down determines the running time-frequency resource for cyclical transmission vehicle communication message.

In this technical scheme, base station by carrying out the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link, so that terminal determines the running time-frequency resource of cyclical transmission vehicle communication message according to configuration parameter, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, achieve " primary distribution, repeatedly use " purpose, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization, solve the problem adopting semi-persistent scheduling machine-processed in correlation technique and to cause the level of resources utilization relatively low.

In technique scheme, it is preferable that carry out the step of the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link, specifically include:

The characteristic information of the vehicle communication business carried out according to the described terminal known is to configuration parameter described in described terminal distribution; Or

Receiving the configuring request of semi-persistent scheduling that described terminal sends, the characteristic information of the vehicle communication business carried out according to the terminal comprised in described configuring request is to configuration parameter described in described terminal distribution.

In this technical scheme, base station can be come actively to terminal distribution configuration parameter according to the characteristic information known in advance on the one hand; On the other hand, terminal can also send the configuring request of semi-persistent scheduling to base station, base station when receiving this configuring request to terminal distribution configuration parameter.

Wherein, the characteristic information of described vehicle communication business includes: whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.

In any of the above-described technical scheme, it is preferable that also include:

When needing to adjust the described configuration parameter to described terminal distribution, redistribute described configuration parameter to described terminal, and the described configuration parameter redistributed is sent to described terminal; Or

Receive the reconfiguration request of the semi-persistent scheduling that described terminal sends, be the described configuration parameter of described terminal distribution again according to described reconfiguration request, and the described configuration parameter redistributed is sent to described terminal.

In this technical scheme, on the one hand, if base station needs to adjust the configuration parameter to terminal distribution, then can actively the configuration parameter redistributed be sent to terminal; On the other hand, terminal can also send reconfiguration request (the characteristic information of the V2V business carried out such as terminal there occurs change) to base station, base station when receiving this reconfiguration request again to terminal distribution configuration parameter.

In any of the above-described technical scheme, it is preferable that before the described step of configuration parameter carrying out semi-persistent scheduling to terminal distribution on secondary link, also include:

The characteristic information according to the vehicle communication business that described terminal carries out, it may be judged whether permit described terminal and use semi-persistent scheduling mechanism on secondary link;

If it is determined that permit described terminal to use semi-persistent scheduling mechanism on secondary link, then perform the step of the described configuration parameter carrying out semi-persistent scheduling to terminal distribution on secondary link.

In this technical scheme, by judging whether that permit terminal uses semi-persistent scheduling mechanism on secondary link, it is possible to accurately determine out the terminal that can carry out semi-persistent scheduling. Specifically, the characteristic information of the vehicle communication business carried out such as terminal shows that vehicle communication message is not periodic message, it is determined that disapproves this terminal and uses semi-persistent scheduling mechanism on secondary link; If the characteristic information of the vehicle communication business that terminal carries out for another example shows that vehicle communication message is that the size of periodic message and message is lower than certain threshold value, it is determined that permit this terminal and use semi-persistent scheduling mechanism on secondary link.

In any of the above-described technical scheme, it is preferable that also include:

When the duration of described vehicle communication message reaches scheduled duration, discharge described running time-frequency resource; Or

Sending the instruction information discharging described running time-frequency resource to described terminal, and discharge described running time-frequency resource, described instruction information is used for indicating described terminal to stop using described running time-frequency resource to transmit described vehicle communication message.

In this technical scheme, on the one hand, terminal is when the duration determining vehicle communication message reaches scheduled duration, it is possible to stop using the running time-frequency resource that base station is distributed, now base station is determined according to the duration of vehicle communication message and has been reached scheduled duration, it is possible to discharge this running time-frequency resource; On the other hand, base station can actively determine the need for dischargeing the running time-frequency resource distributing to terminal, if desired discharges the running time-frequency resource distributing to terminal, then send to terminal and indicate information accordingly.

Fig. 6 illustrates the schematic block diagram of the resource scheduling device for vehicle communication according to another embodiment of the invention.

As shown in Figure 6, the resource scheduling device 600 for vehicle communication according to another embodiment of the invention, including: allocation units 602 and transmitting element 604.

Wherein, allocation units 602, for carrying out the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link; Transmitting element 604, for described configuration parameter is sent to described terminal, and control information for sending physical down to described terminal, so that described terminal controls information based on described configuration parameter and described physical down determines the running time-frequency resource for cyclical transmission vehicle communication message.

In this technical scheme, base station by carrying out the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link, so that terminal determines the running time-frequency resource of cyclical transmission vehicle communication message according to configuration parameter, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, achieve " primary distribution, repeatedly use " purpose, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization, solve the problem adopting semi-persistent scheduling machine-processed in correlation technique and to cause the level of resources utilization relatively low.

In technique scheme, it is preferable that described allocation units 602 specifically for:

The characteristic information of the vehicle communication business carried out according to the described terminal known is to configuration parameter described in described terminal distribution; Or

Receiving the configuring request of semi-persistent scheduling that described terminal sends, the characteristic information of the vehicle communication business carried out according to the terminal comprised in described configuring request is to configuration parameter described in described terminal distribution.

In this technical scheme, base station can be come actively to terminal distribution configuration parameter according to the characteristic information known in advance on the one hand; On the other hand, terminal can also send the configuring request of semi-persistent scheduling to base station, base station when receiving this configuring request to terminal distribution configuration parameter.

Wherein, the characteristic information of described vehicle communication business includes: whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.

In any of the above-described technical scheme, it is preferable that described allocation units 602 are additionally operable to:

When needing to adjust the described configuration parameter to described terminal distribution, redistribute described configuration parameter to described terminal, and the described configuration parameter redistributed is sent to described terminal; Or

Receive the reconfiguration request of the semi-persistent scheduling that described terminal sends, be the described configuration parameter of described terminal distribution again according to described reconfiguration request, and the described configuration parameter redistributed is sent to described terminal.

In this technical scheme, on the one hand, if base station needs to adjust the configuration parameter to terminal distribution, then can actively the configuration parameter redistributed be sent to terminal; On the other hand, terminal can also send reconfiguration request (the characteristic information of the V2V business carried out such as terminal there occurs change) to base station, base station when receiving this reconfiguration request again to terminal distribution configuration parameter.

In any of the above-described technical scheme, it is preferable that also include:

Judging unit 606, at described allocation units 602 to before configuration parameter described in described terminal distribution, the characteristic information according to the vehicle communication business that described terminal carries out, it may be judged whether permit described terminal and use semi-persistent scheduling mechanism on secondary link;

Described allocation units 602 specifically for, when described judging unit 606 judges that permit described terminal uses semi-persistent scheduling mechanism on secondary link, perform to the operation of configuration parameter described in described terminal distribution.

In this technical scheme, by judging whether that permit terminal uses semi-persistent scheduling mechanism on secondary link, it is possible to accurately determine out the terminal that can carry out semi-persistent scheduling. Specifically, the characteristic information of the vehicle communication business carried out such as terminal shows that vehicle communication message is not periodic message, it is determined that disapproves this terminal and uses semi-persistent scheduling mechanism on secondary link;If the characteristic information of the vehicle communication business that terminal carries out for another example shows that vehicle communication message is that the size of periodic message and message is lower than certain threshold value, it is determined that permit this terminal and use semi-persistent scheduling mechanism on secondary link.

In any of the above-described technical scheme, it is preferable that also include:

Resource releasing unit 608, for when the duration of described vehicle communication message reaches scheduled duration, discharging described running time-frequency resource; Or

Processing unit 610, for sending the instruction information discharging described running time-frequency resource to described terminal, and discharges described running time-frequency resource, and described instruction information is used for indicating described terminal to stop using described running time-frequency resource to transmit described vehicle communication message.

In this technical scheme, on the one hand, terminal is when the duration determining vehicle communication message reaches scheduled duration, it is possible to stop using the running time-frequency resource that base station is distributed, now base station is determined according to the duration of vehicle communication message and has been reached scheduled duration, it is possible to discharge this running time-frequency resource; On the other hand, base station can actively determine the need for dischargeing the running time-frequency resource distributing to terminal, if desired discharges the running time-frequency resource distributing to terminal, then send to terminal and indicate information accordingly.

Fig. 7 illustrates the schematic block diagram of base station according to an embodiment of the invention.

As it is shown in fig. 7, base station 700 according to an embodiment of the invention, including: as shown in Figure 6 for the resource scheduling device 600 of vehicle communication.

In sum, owing to the resource allocation methods of current Rel-13D2D scheduling method only has dynamic dispatching mechanism, what not yet introduce and define semi-persistent scheduling mechanism realizes standard, simultaneously takes account of the message transmission that semi-static resource scheduling mechanism is incorporated into some V2V business and there is bigger potential gain. Therefore, the present invention proposes the mechanism introducing semi-static resource scheduling in the resource allocation methods based on eNB scheduling method, making semi-static scheduling resources is " primary distribution; repeatedly use ", and then the expense of the PDCCH of correspondence can be reduced, to be used for dispatching extra UE by more resource, thus being conducive to promoting network capacity. And the present invention relevant realizes signaling and flow process discussing to have formulated on the basis of UE end, eNB end behavior. Illustrate in detailed below:

For purposes of illustration only, following, semi-persistent scheduling mechanism is together simply referred to as SPS (Semi-PersistentScheduling, semi-persistent scheduling) mechanism. And in order to make a distinction with the semi-persistent scheduling mechanism of existing up-link (Uplink) and the distribution of downlink (Downlink) resource, below the semi-persistent scheduling mechanism that D2D pair link (Sidelink) resource is distributed is together simply referred to as SLSPS mechanism.

Technical scheme was broadly divided into for three megastages and realizes:

One, initial phase:

Within this stage, UE obtains the relevant configured parameter of SLSPS. Wherein, the SLSPS of UE configures initialization can be that the request of UE active reporting triggers, it is also possible to be that eNB directly issues.

If it is that the request of UE active reporting triggers that the SLSPS of 1 UE configures initialization, then needs UE to pass through RRC (RadioResourceControl, wireless heterogeneous networks) signaling and report the SLSPS configuring request of oneself. RRC signaling comprises the characteristic information of the UE V2V business carried out, for instance whether be periodic message, V2V message content types, the transmission frequency f of V2V message, the size s of V2V message, V2V message persistent period t etc.

If the SLSPS configuration parameter of 2 UE is that eNB directly issues, then eNB, eNB need not be reported directly to issue the relevant configured parameter of the SLSPS to UE by explicit signaling by UE. Certainly, it is the already known UE of eNB currently used dynamic dispatching mechanism that eNB can implement premise of this operation, and the characteristic information of V2V business that UE carries out.

3, no matter it is that UE active reporting asks the configuration triggering SLSPS to initialize, or eNB directly issues the configuration parameter of SLSPS, is required for eNB before sending the configuration parameter of SLSPS, carries out permitting control.

Wherein, eNB carries out permitting controlling being specially eNB and combines based on one or more the characteristic information of the UE V2V business carried out and judge that this UE is if appropriate for using SLSPS scheduling, and whether has available running time-frequency resource for SLSPS scheduling. Such as, if what the V2V business that carries out of UE sent is non-periodic message, then disapproves this UE and use semi-persistent scheduling mechanism; If the size s of what UE carried out is periodic message and message is lower than certain threshold value, and when having available running time-frequency resource to dispatch for SLSPS, then permits this UE and use semi-persistent scheduling mechanism. If the result permitting controlling is to agree to that this UE uses semi-persistent scheduling mechanism, then eNB passes through the RRC transmitting signaling downwards SLSPS configuration parameter to UE, comprising the SPS configuration parameter of the UE V2V business carried out in RRC signaling, for instance SLSPS cycle T, what UE carried out SLSPS uniquely identifies SPSSL-RNTI.

4, especially, SLSPS can also reconfigure. Trigger the SLSPS reason reconfigured and can come from UE end, it is also possible to from eNB end. Such as UE some the characteristic information (transmission frequency, message size etc.) after carrying out this V2V business a period of time there occurs change, and eNB needs running time-frequency resource position changing use SLSPS etc. for another example.

The flow process of initial phase can be as shown in Figure 8:

For mode one, including:

Step 802, UE/ source vehicle sends the request of SLSPS configuration/reconfiguration by RRC signaling to eNB;

Step 804, eNB carries out SLSPS to be permitted controlling.

Step 806, the configuration/reconfiguration parameter of SLSPS is sent to UE/ source vehicle by eNB by RRC signaling.

For mode two, including:

Step 808, eNB carries out SLSPS to be permitted controlling.

Step 810, the configuration/reconfiguration parameter of SLSPS is sent to UE/ source vehicle by eNB by RRC signaling.

Two, the stage is activated

In this stage, UE, according to the SPS configuration parameter got, starts periodic V2V message and sends. Specifically:

1, UE monitors the PDCCH/e-PDCCH of oneself, is demodulated the position of available running time-frequency resource (i.e. SPSSLgrant) by the SPSSL-RNTI that eNB is oneself distribution.

2, UE sends V2V message on the running time-frequency resource position demodulated.

3, hereafter, UE starts periodically to use running time-frequency resource to send V2V message based on SLSPS cycle T.

The flow process in activation stage can as it is shown in figure 9, include:

Step 902, eNB distributes SPSSLgrant to UE/ source vehicle.

Step 904, UE/ source vehicle monitors PDCCH/e-PDCCH, demodulates the position of available running time-frequency resource based on SPSSL-RNIT.

Step 906, UE/ source vehicle, based on the position of the running time-frequency resource demodulated, carries out periodic V2V message with UE/ target vehicle and sends.

Three, failure stage

Within this stage, the SLSPS configuration release of UE, the V2V message of UE dwelling period sends. The SLSPS loss of configuration of UE can pass through following two mode:

Mode one: UE judges voluntarily.Specifically, when the persistent period t of V2V message arrives, UE stops using the SPSSL-RNTI running time-frequency resource demodulated. In this manner, because obtain the persistent period t of the V2V message of UE at initial phase eNB, so UE also need not reinform eNB, eNB and also can discharge the running time-frequency resource for SLSPS while the time reaches.

Mode two: eNB explicitly notifies UE. Specifically, eNB can send the instruction of releaseSLSPS configuration by RRC signaling, and this mode can terminate the transmission of V2V message in advance.

The flow process of failure stage can be as shown in Figure 10:

For mode one, including:

Step 1002, when the persistent period t of V2V message arrives, UE/ source vehicle terminates this V2V;

Step 1004, the running time-frequency resource of this UE/ source vehicle distribution is turned in eNB release.

For mode two, including:

Step 1006, before the persistent period t of V2V message arrives, eNB sends SLSPS configuration by RRC signaling to UE/ source vehicle and releases order.

Step 1008, UE/ source vehicle terminates this V2V.

The overall process flow in three above stage as shown in figure 11, including:

Step 1102, UE/ source vehicle sends the request of SLSPS configuration/reconfiguration by RRC signaling to eNB. Wherein, this step is UE/ source vehicle reports request to trigger the eNB step carrying out configuring to eNB, if not this step when eNB actively issues the configuration parameter of SLSPS to UE.

Step 1104, eNB carries out SLSPS to be permitted controlling.

Step 1106, the configuration/reconfiguration parameter of SLSPS is sent to UE/ source vehicle by eNB by RRC signaling.

Step 1108, eNB distributes SPSSLgrant to UE/ source vehicle.

Step 1110, UE/ source vehicle monitors PDCCH/e-PDCCH, demodulates the position of available running time-frequency resource based on SPSSL-RNIT.

Step 1112, UE/ source vehicle, based on the position of the running time-frequency resource demodulated, carries out periodic V2V message with UE/ target vehicle and sends.

Step 1114, eNB sends SLSPS configuration by RRC signaling to UE/ source vehicle and releases order. This step is that eNB sends, to UE/ source vehicle, the step that SLSPS configuration is released order, namely before the persistent period t of V2V message arrives, eNB sends SLSPS configuration to UE/ source vehicle and releases order, if when the persistent period t of V2V message arrives, then eNB is without sending to UE/ source vehicle.

Step 1116, UE/ source vehicle terminates this V2V.

Semi-static resource scheduling mechanism is introduced the V2V message transmission of Based PC 5/D2D by the technique scheme of the present invention, the periodicity V2V business that applicable packet is little, size is basically unchanged, and is conducive to promoting the capacity of car networking.

Technical scheme is described in detail above in association with accompanying drawing, the present invention proposes a kind of new resource scheduling scheme for vehicle communication, make terminal when carrying out V2V business, base station can adopt the mechanism of semi-persistent scheduling to configure running time-frequency resource to terminal, and then the expense to PDCCH can be reduced, so that more resource is used for dispatching other terminal by base station, improve the level of resources utilization.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims (24)

1. the resource regulating method for vehicle communication, it is characterised in that including:
Obtain the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution;
According to described configuration parameter, it is determined that for the running time-frequency resource of cyclical transmission vehicle communication message;
Based on described running time-frequency resource, periodically transmit described vehicle communication message.
2. the resource regulating method for vehicle communication according to claim 1, it is characterised in that obtain the step of the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution, specifically include:
Receive the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to terminal; Or
Send the configuring request of semi-persistent scheduling to described base station, and receive the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to the terminal comprised in described configuring request.
3. the resource regulating method for vehicle communication according to claim 2, it is characterised in that the characteristic information of described vehicle communication business includes:
Whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.
4. the resource regulating method for vehicle communication according to claim 1, it is characterised in that also include:
Receive the described configuration parameter that described base station is redistributed; Or the reconfiguration request to described base station transmission semi-persistent scheduling, and receive described base station according to described reconfiguration request again to the described configuration parameter of described terminal distribution;
According to the described configuration parameter that described base station is redistributed, redefine the running time-frequency resource of vehicle communication message described in cyclical transmission, and periodically transmit described vehicle communication message based on the running time-frequency resource redefined.
5. the resource regulating method for vehicle communication according to claim 1, it is characterised in that according to described configuration parameter, it is determined that for the step of the running time-frequency resource of cyclical transmission vehicle communication message, specifically include:
Monitor the physical down that described base station sends and control information, and carry out the RNTI of secondary link communication according to the terminal comprised in described configuration parameter, demodulate described running time-frequency resource; And
According to the semi-static scheduling cycle to described terminal distribution comprised in described configuration parameter, it is determined that for transmitting the life cycle of the running time-frequency resource of described vehicle communication message.
6. the resource regulating method for vehicle communication according to any one of claim 1 to 5, it is characterised in that also include:
When the duration of described vehicle communication message reaches scheduled duration, described running time-frequency resource is stopped using to transmit described vehicle communication message; Or
When receiving the instruction information discharging described running time-frequency resource that described base station sends, described running time-frequency resource is stopped using to transmit described vehicle communication message.
7. the resource regulating method for vehicle communication, it is characterised in that including:
On secondary link, the configuration parameter of semi-persistent scheduling is carried out to terminal distribution;
Described configuration parameter is sent to described terminal;
Send physical down to described terminal and control information, so that described terminal controls information based on described configuration parameter and described physical down determines the running time-frequency resource for cyclical transmission vehicle communication message.
8. the resource regulating method for vehicle communication according to claim 7, it is characterised in that carry out the step of the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link, specifically include:
The characteristic information of the vehicle communication business carried out according to the described terminal known is to configuration parameter described in described terminal distribution;Or
Receiving the configuring request of semi-persistent scheduling that described terminal sends, the characteristic information of the vehicle communication business carried out according to the terminal comprised in described configuring request is to configuration parameter described in described terminal distribution.
9. the resource regulating method for vehicle communication according to claim 7, it is characterised in that also include:
When needing to adjust the described configuration parameter to described terminal distribution, redistribute described configuration parameter to described terminal, and the described configuration parameter redistributed is sent to described terminal; Or
Receive the reconfiguration request of the semi-persistent scheduling that described terminal sends, be the described configuration parameter of described terminal distribution again according to described reconfiguration request, and the described configuration parameter redistributed is sent to described terminal.
10. the resource regulating method for vehicle communication according to claim 7, it is characterised in that before the described step of configuration parameter carrying out semi-persistent scheduling to terminal distribution on secondary link, also include:
The characteristic information according to the vehicle communication business that described terminal carries out, it may be judged whether permit described terminal and use semi-persistent scheduling mechanism on secondary link;
If it is determined that permit described terminal to use semi-persistent scheduling mechanism on secondary link, then perform the step of the described configuration parameter carrying out semi-persistent scheduling to terminal distribution on secondary link.
11. the resource regulating method for vehicle communication according to any one of claim 7 to 10, it is characterised in that also include:
When the duration of described vehicle communication message reaches scheduled duration, discharge described running time-frequency resource; Or
Sending the instruction information discharging described running time-frequency resource to described terminal, and discharge described running time-frequency resource, described instruction information is used for indicating described terminal to stop using described running time-frequency resource to transmit described vehicle communication message.
12. the resource scheduling device for vehicle communication, it is characterised in that including:
Acquiring unit, for obtaining the configuration parameter carrying out semi-persistent scheduling on secondary link of base station distribution;
Determine unit, for according to described configuration parameter, it is determined that for the running time-frequency resource of cyclical transmission vehicle communication message;
Transmission unit, for based on described running time-frequency resource, periodically transmitting described vehicle communication message.
13. the resource scheduling device for vehicle communication according to claim 12, it is characterised in that described acquiring unit includes:
First receives unit, for receiving the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to terminal; Or
First interactive unit, for sending the configuring request of semi-persistent scheduling to described base station, and receives the configuration parameter of the characteristic information distribution of the vehicle communication business that described base station carries out according to the terminal comprised in described configuring request.
14. the resource scheduling device for vehicle communication according to claim 13, it is characterised in that the characteristic information of described vehicle communication business includes:
Whether vehicle communication message is the duration of periodic message, the type of vehicle communication message, the transmission frequency of vehicle communication message, the size of data of vehicle communication message and vehicle communication message.
15. the resource scheduling device for vehicle communication according to claim 12, it is characterised in that also include: second receives unit, for receiving the described configuration parameter that described base station is redistributed; Or second interactive unit, for sending the reconfiguration request of semi-persistent scheduling to described base station, and receive described base station according to described reconfiguration request again to the described configuration parameter of described terminal distribution;
Described determine that unit is additionally operable to, according to the described configuration parameter that described base station is redistributed, redefine the running time-frequency resource of vehicle communication message described in cyclical transmission;
Described transmission unit is additionally operable to, and periodically transmits described vehicle communication message based on the described running time-frequency resource determining that unit redefines.
16. the resource scheduling device for vehicle communication according to claim 12, it is characterised in that described determine unit specifically for:
Monitor the physical down that described base station sends and control information, and carry out the RNTI of secondary link communication according to the terminal comprised in described configuration parameter, demodulate described running time-frequency resource; And
According to the semi-static scheduling cycle to described terminal distribution comprised in described configuration parameter, it is determined that for transmitting the life cycle of the running time-frequency resource of described vehicle communication message.
17. the resource scheduling device for vehicle communication according to any one of claim 12 to 16, it is characterised in that described transmission unit is additionally operable to:
When the duration of described vehicle communication message reaches scheduled duration, described running time-frequency resource is stopped using to transmit described vehicle communication message; Or
When receiving the instruction information discharging described running time-frequency resource that described base station sends, described running time-frequency resource is stopped using to transmit described vehicle communication message.
18. the resource scheduling device for vehicle communication, it is characterised in that including:
Allocation units, for carrying out the configuration parameter of semi-persistent scheduling to terminal distribution on secondary link;
Transmitting element, for described configuration parameter is sent to described terminal, and control information for sending physical down to described terminal, so that described terminal controls information based on described configuration parameter and described physical down determines the running time-frequency resource for cyclical transmission vehicle communication message.
19. the resource scheduling device for vehicle communication according to claim 18, it is characterised in that described allocation units specifically for:
The characteristic information of the vehicle communication business carried out according to the described terminal known is to configuration parameter described in described terminal distribution; Or
Receiving the configuring request of semi-persistent scheduling that described terminal sends, the characteristic information of the vehicle communication business carried out according to the terminal comprised in described configuring request is to configuration parameter described in described terminal distribution.
20. the resource scheduling device for vehicle communication according to claim 18, it is characterised in that described allocation units are additionally operable to:
When needing to adjust the described configuration parameter to described terminal distribution, redistribute described configuration parameter to described terminal, and the described configuration parameter redistributed is sent to described terminal; Or
Receive the reconfiguration request of the semi-persistent scheduling that described terminal sends, be the described configuration parameter of described terminal distribution again according to described reconfiguration request, and the described configuration parameter redistributed is sent to described terminal.
21. the resource scheduling device for vehicle communication according to claim 18, it is characterised in that also include:
Judging unit, at described allocation units to before configuration parameter described in described terminal distribution, the characteristic information according to the vehicle communication business that described terminal carries out, it may be judged whether permit described terminal and use semi-persistent scheduling mechanism on secondary link;
Described allocation units specifically for, when described judging unit judges that permit described terminal uses semi-persistent scheduling mechanism on secondary link, perform to the operation of configuration parameter described in described terminal distribution.
22. the resource scheduling device for vehicle communication according to any one of claim 18 to 21, it is characterised in that also include:
Resource releasing unit, for when the duration of described vehicle communication message reaches scheduled duration, discharging described running time-frequency resource;Or
Processing unit, for sending the instruction information discharging described running time-frequency resource to described terminal, and discharges described running time-frequency resource, and described instruction information is used for indicating described terminal to stop using described running time-frequency resource to transmit described vehicle communication message.
23. a terminal, it is characterised in that including: the resource scheduling device for vehicle communication as according to any one of claim 12 to 17.
24. a base station, it is characterised in that including: the resource scheduling device for vehicle communication as according to any one of claim 18 to 22.
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