CN110418175A

CN110418175A - A kind of method and Related product of V2X dynamic regulating video transmission parameter

Info

Publication number: CN110418175A
Application number: CN201810402823.5A
Authority: CN
Inventors: 江亮亮; 陈晓光
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Cloud Computing Technologies Co Ltd
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2019-11-05
Anticipated expiration: 2038-04-28
Also published as: CN110418175B; WO2019206026A1

Abstract

The embodiment of the present application discloses the method and relevant apparatus of a kind of V2X dynamic regulating video transmission parameter.A kind of method of V2X dynamic regulating video transmission parameter includes: that V2X AS receives the enforcement state report that V2X UE is reported.The enforcement state report can carry the information such as the enforcement environment complexity parameter of V2X user equipment.The V2X AS determines the first video frequency coding rate corresponding with the enforcement environment complexity parameter.In the case where first video frequency coding rate is not equal to the second video frequency coding rate used in the V2X UE current transmission video, Xiang Suoshu V2X UE sends the configuration update message for carrying the first video frequency coding rate.This is conducive to enhance video frequency coding rate and the current Dynamic Matching correspondence exercised between environment complexity, applies needs under several scenes so being conducive to meet.

Description

A kind of method and Related product of V2X dynamic regulating video transmission parameter

Technical field

This application involves vehicle networking technical fields, more particularly to a kind of method of V2X dynamic regulating video transmission parameter And Related product.

Background technique

Currently, car networking technology has become the hot spot of new auto technology development, and lot of domestic and international normal structure is positive Participate in the construction of car networking technology, such as third generation partner program (3GPP, Third Generation Partnership Project) tissue, European Telecommunications Standards Institute (ETSI, European Telecommunications Standards The normal structures such as Institute).It is special that China has also specially set up the car networking industry development of national manufacturing power leadership for the development group The item committee.Car networking is greatly developed, may advantageously facilitate automobile industry innovation and development, automobile is constructed and transport services new model is new Industry situation promotes automatic Pilot technological innovation and application, improves traffic efficiency, saves resource, reduce pollution, reduce accident Rate is further liberated the productive forces, and is the important measure of practicable " made in China 2025 ", to propulsion supply side structural reform, training The new kinetic energy of economic development, construction manufacturing power and network power is educated to be of great significance.

Car networking (V2X, Vehicle to Everything) technology is intended to vehicle and is very interconnected with the external world, this is The following intelligent automobile, automatic Pilot, the basis of intelligent transport system and key technology.The V2X technology that 3GPP is defined is main Including following 4 major class technology:

Vehicle-internet (V2N, Vehicle-To-Network) technology；

Che-vehicle (V2V, Vehicle-To-Vehicle) technology；

Vehicle-infrastructure (V2I, Vehicle-To-Infrastructure) technology；

Vehicle-pedestrian (V2P, Vehicle-To-Pedestrian) technology.

The video that V2X user equipment (UE, User Equipment) provides may be that the auxiliary of other V2X user equipmenies is driven The important means sailed, as V2X See through technology drives means using the camera of other vehicles as auxiliary security.Though View is transmitted between right vehicle and vehicle, between vehicle and V2X application server (V2X AS, V2X Application Server) Frequency need to consume huge network bandwidth, but the utility value of these videos is also bigger.

In traditional scheme, the video frequency coding rate of V2X user device transmissions video be it is fixed always, be difficult in some times Meet and applies needs.

Summary of the invention

The embodiment of the present application provides the method and relevant apparatus of a kind of V2X dynamic regulating video transmission parameter.

In a first aspect, the embodiment of the present application provides a kind of method of V2X dynamic regulating video transmission parameter, comprising:

V2X user equipment is periodic or acyclic current enforcement state report is reported to V2X application server. V2X application server can receive the enforcement state report of V2X user equipment to report.Wherein, the enforcement state report can carry The information such as the enforcement environment complexity parameter of V2X user equipment, the enforcement environment complexity parameter are used for characterizing the V2X The complexity of the enforcement environment of family equipment.The V2X application server determination is corresponding with the enforcement environment complexity parameter First video frequency coding rate.Made in first video frequency coding rate not equal to the V2X user equipment current transmission video In the case where second video frequency coding rate, Xiang Suoshu V2X user equipment sends configuration update message, and the configuration update disappears Breath is used to indicate the V2X user equipment for video frequency coding rate used in current transmission video by second Video coding Code rate is updated to first video frequency coding rate.

Wherein, exercising environment complexity parameter for example may include running velocity and/or enforcement position etc..That is, running velocity And/or enforcement position can characterize to a certain extent and exercise environment complexity.Specifically, usually running velocity is faster, It exercises environment complexity and is likely to higher, conversely, exercising environment complexity is likely to lower.Usually, position position is being exercised In the case of rural, exercises environment complexity and be likely to relatively low；And in the case where enforcement position is located at city, exercise ring Border complexity is likely to relatively high.Usually, in the case where enforcement position is located at Dense crowd accumulation regions, environment is exercised Complexity is likely to relatively high；Conversely, exercising environment complexity in the case where enforcement position is located at low density crowd accumulation regions It is likely to compare lower.That is different zones or different zones type, exercising environment complexity may be different.Such as it can be based on It exercises position and determines that this exercises position affiliated area, and then this can be determined based on the type in this region or this region The enforcement environment complexity in region.

In another example exercising the traffic density that environment complexity parameter may include place wagon flow, the traffic density of place wagon flow It can characterize to a certain extent and exercise environment complexity.Specifically, usually, the traffic density of place wagon flow is bigger, exercise Environment complexity is likely to higher, conversely, exercising environment complexity is likely to lower.

It is appreciated that the enforcement environment complexity that enforcement environment complexity parameter is characterized is higher, corresponding video Encoder bit rate is also higher, and vice versa.For example, the enforcement environment complexity that enforcement environment complexity parameter can be characterized At least two grades, different enforcement environment complexity levels are divided into, it is multiple to exercise environment for corresponding different video frequency coding rate Miscellaneous degree higher grade, and corresponding video frequency coding rate is also higher, and vice versa.

Wherein, the video of the V2X user device transmissions is alternatively referred to as V2X video.

Wherein, the V2X user device transmissions video is for example using default bearing or dedicated bearing.

As can be seen that V2X application server is in the enforcement for receiving V2X user equipment to report in the application above scheme After state report, the enforcement environment complexity parameter that can be carried based on the enforcement state report, to determine corresponding view Frequency encoder bit rate, also, used in the video frequency coding rate determined not equal to the V2X user equipment current transmission video Video frequency coding rate in the case where, to video frequency coding rate used in the V2X user equipment current transmission video carry out The update of correspondence, this allows video frequency coding rate used in V2X user equipment current transmission video with current line Make the variation of environment complexity and correspond to dynamic change, this is conducive to enhance video frequency coding rate and current enforcement environment complexity Between matching correspondence, so be conducive to meet under several scenes apply needs.

In some possible embodiments, in the case where the V2X user device transmissions video uses dedicated bearing, institute The method of stating may also include that

The V2X application server determines the first carrying bandwidth corresponding with first video frequency coding rate；

In the first carrying bandwidth not equal to dedicated bearing used in the V2X user equipment current transmission video In the case where second carrying bandwidth, the V2X application server sends to "Policy and Charging Rules Function (PCRF) entity and carries Bandwidth update message.The carrying bandwidth update message is used to indicate the PCRF entity for the bandwidth of the dedicated bearing by Two carrying bandwidth are updated to the first carrying bandwidth.

As can be seen that enhancing due to enhancing the matching correspondence between video frequency coding rate and dedicated bearing bandwidth Matching correspondence between Demand-side and supply side, and then be conducive to be promoted the utilization efficiency of bandwidth resources.

It in some possible embodiments, include running velocity information and enforcement in the enforcement environment complexity parameter In the case where location information, the V2X application server determines the first video corresponding with the enforcement environment complexity parameter Encoder bit rate can include: in mapping table corresponding with the enforcement location information, search and the running velocity information Matched mapping relations record, and have recorded the first video frequency coding rate in the mapping relations record.For example, different enforcement positions The possible corresponding mapping table of confidence breath, specifically for example, different types of region corresponds to different mapping tables, such as city City and rural area can correspond to different mapping tables, in another example crowded area and non-dense set area can correspond to different mapping relations Table, can based on it is current exercise location information determine it is current exercise region belonging to position, then based on region type determine with Corresponding mapping table.

In the possible embodiment of other, the enforcement environment complexity parameter include running velocity information and In the case where exercising location information, the V2X application server is determined and the enforcement environment complexity parameter corresponding first Video frequency coding rate can include: search in mapping table and matched with the running velocity information and the enforcement location information Mapping relations record, have recorded the first video frequency coding rate in mapping relations record.

In some possible embodiments, in the enforcement environment complexity upgrading alarm report for receiving another equipment transmission In the case where announcement, if it is described exercise environment complexity upgrading alarm carry enforcement position, with the V2X user equipment it is newest on Enforcement position represented by the enforcement location information that the enforcement state report of report carries belongs to the same area, the V2X application clothes Business device starts timer, and sends the first interim update message of configuration to the V2X user equipment；First configuration is interim more New information is used to indicate the V2X user equipment and video frequency coding rate used in current transmission video is promoted N number of grade；When When the timer reaches, the V2X application server sends the second interim update message of configuration to the V2X user equipment, The interim update message of second configuration is used to indicate the V2X user equipment for Video coding used in current transmission video Code rate reduces N number of grade, and the N is positive integer, and another equipment is another V2X user equipment.

Such as N can be equal to 1,2,3,4 or other values, such as video frequency coding rate may be promoted by 1M/s to 2M/s, 3M/s Or 5M/s or other code rates.

Wherein, the duration of the timer can be fixed, and be also possible to different because of period difference.Such as it is busy The duration of the timer of period is longer, and the duration of the timer of non-peak hours/period is shorter.In another example the timer of peak hours/period Duration is shorter, and the duration of the timer of non-peak hours/period gets over field.

As can be seen that exercising environment complexity in other V2X user equipment to report in the same area in above scheme In the case where upgrading switch fault report (exercising environment complexity upgrading switch fault report may be to report under the triggering of user instruction), Indicating the enforcement environment complexity in this region may happen suddenly upgrading, this when, the V2X application server temporarily promoted view Frequency encoder bit rate is conducive to that V2X user equipment is helped to obtain better video quality, and then is conducive to the related V2X user that helps Equipment more preferably copes with emergency.

Second aspect, the embodiment of the present application provide a kind of V2X application server, may include:

Communication module, for receiving the enforcement state report of V2X user equipment to report, the enforcement state report is carried The enforcement environment complexity parameter of V2X user equipment, the enforcement environment complexity parameter is for characterizing the V2X user equipment Enforcement environment complexity.

Determining module, for determining the first video frequency coding rate corresponding with the enforcement environment complexity parameter.

The communication module is also used to, and works as forward pass not equal to the V2X user equipment in first video frequency coding rate In the case where second video frequency coding rate used in defeated video, Xiang Suoshu V2X user equipment sends configuration update message, described Configuration update message is used to indicate the V2X user equipment for video frequency coding rate used in current transmission video by described Two video frequency coding rates are updated to first video frequency coding rate.

In some possible embodiments, the V2X user device transmissions video uses default bearing or dedicated bearing.

In some possible embodiments, in the case where the V2X user device transmissions video uses dedicated bearing, The determining module can also be used to determine the first carrying bandwidth corresponding with first video frequency coding rate.

The communication module is also used to, and is regarded in the first carrying bandwidth not equal to the V2X user equipment current transmission In the case where second carrying bandwidth of dedicated bearing used in frequency, held to the transmission of "Policy and Charging Rules Function (PCRF) entity Carry wide update message.The carrying bandwidth update message be used to indicate the PCRF entity by the bandwidth of the dedicated bearing by Second carrying bandwidth is updated to the first carrying bandwidth.

In some possible embodiments, the enforcement environment complexity parameter for example including running velocity information and/ Or exercise location information etc..

In some possible embodiments, the determining module determination is corresponding with the enforcement environment complexity parameter First video frequency coding rate, comprising:

In mapping table corresponding with the enforcement location information, lookup is reflected with the running velocity information matches Relation record is penetrated, has recorded the first video frequency coding rate in the mapping relations record；Alternatively, in mapping table search with The running velocity information and the matched mapping relations of the enforcement location information record, and have recorded in the mapping relations record First video frequency coding rate.

In some possible embodiments, the communication module is also used to, in the enforcement ring for receiving another equipment transmission In the case that border complexity upgrades switch fault report, if the enforcement position exercising the upgrading alarm of environment complexity and carrying, with institute State enforcement position represented by the enforcement location information that the newest enforcement state report that reports of V2X user equipment carries belong to it is same Region starts timer, and sends the first interim update message of configuration to the V2X user equipment；First configuration is interim Update message is used to indicate the V2X user equipment and video frequency coding rate used in current transmission video is promoted N number of grade； When the timer reaches, Xiang Suoshu V2X user equipment sends the second interim update message of configuration, and second configuration is interim Update message, which is used to indicate the V2X user equipment, reduces N number of grade for video frequency coding rate used in current transmission video, The N is positive integer, and another equipment is another V2X user equipment.

The third aspect, the embodiment of the present application provide another V2X application server, may include:

The memory and processor to intercouple；

Wherein, the processor executes the program stored in the memory, for executing in the application first aspect Some or all of the method executed by V2X application server step.

Specifically for example, processor can be used for receiving the enforcement state report of V2X user equipment to report.Wherein, the enforcement State report can carry the information such as the enforcement environment complexity parameter of V2X user equipment, and the enforcement environment complexity parameter is used In the complexity for the enforcement environment for characterizing the V2X user equipment.Determine corresponding with the enforcement environment complexity parameter the One video frequency coding rate.It is used in first video frequency coding rate not equal to the V2X user equipment current transmission video The second video frequency coding rate in the case where, Xiang Suoshu V2X user equipment send configuration update message, the configuration update message The V2X user equipment is used to indicate by video frequency coding rate used in current transmission video by second coded video bitstream Rate is updated to first video frequency coding rate.

Fourth aspect, the embodiment of the present application provide a kind of V2X system, comprising: V2X application server and at least one V2X User equipment.

Wherein, the V2X user equipment is for reporting enforcement state report；

The V2X application server is V2X application server described in second aspect or the third aspect.

5th aspect, the embodiment of the present application provide a kind of computer readable storage medium, the computer-readable storage medium Matter stores program code, wherein said program code is executed by processor any one method to realize first aspect Part or all of step.

6th aspect, the embodiment of the present application provide a kind of computer readable storage medium, the computer-readable storage medium Matter stores program code, wherein said program code include part for executing any one method of first aspect or The instruction of Overall Steps.

7th aspect, the embodiment of the present application provides a kind of computer program product, when the computer program product is being counted When being run on calculation machine, so that the computer executes some or all of any one method of first aspect step.

Detailed description of the invention

Attached drawing involved in the embodiment of the present application will be illustrated below.

Fig. 1 is a kind of structural schematic diagram of communication system provided by the embodiments of the present application；

Fig. 2-A is a kind of process signal of the method for V2X dynamic regulating video transmission parameter provided by the embodiments of the present application Figure；

Fig. 2-B is a kind of schematic diagram of video using the transmission of V2X user terminal provided by the embodiments of the present application；

Fig. 3-A is that the process of the method for another kind V2X dynamic regulating video transmission parameter provided by the embodiments of the present application is shown It is intended to；

Fig. 3-B is a kind of citing of video capability parameter reported provided by the embodiments of the present application；

Fig. 3-C and Fig. 3-D is the schematic diagram of some mapping tables provided by the embodiments of the present application；

Fig. 3-E is the schematic diagram of some possible parameter formats of configuration update message provided by the embodiments of the present application；

Fig. 4-A is that the process of the method for another kind V2X dynamic regulating video transmission parameter provided by the embodiments of the present application is shown It is intended to；

Fig. 4-B is the schematic diagram of some possible parameter formats of carrying bandwidth update message provided by the embodiments of the present application；

Fig. 5 is a kind of configuration diagram of V2X application server provided by the embodiments of the present application；

Fig. 6 is the configuration diagram of another kind V2X application server provided by the embodiments of the present application；

Fig. 7 is a kind of configuration diagram of V2X system provided by the embodiments of the present application.

Specific embodiment

The embodiment of the present application is described below with reference to the attached drawing in the embodiment of the present application.

Referring to Figure 1, Fig. 1 is a kind of structural schematic diagram for communication system that embodiments herein provides, this communication System can include: V2X UE, E-UTRAN NodeB (eNodeB, E-UTRAN NodeB), V2X AS, PCRF entity, packet count According to network gateway (P-GW, Packet Data Network Gateway), gateway (S-GW, Serving Gateway) and The equipment such as mobility management entity (MME, Mobility Management Entity).

It following is a brief introduction of some basic functions of some equipment in lower communication system.

V2X UE for example can be used for periodic broadcast itself enforcement state, including position, speed, direction, path etc..V2X UE can receive the V2X message of periphery V2X UE, such as triggering property broadcast message, such as dangerous information, warning information.

E-UTRAN NodeB, which may participate in V2X UE, becomes the space interface signaling establishment of connection of connected state from Idle state；It participates in To the paging of Idle state V2X UE downlink signaling or data；Participate in the transmission of connected state V2X UE uplink and downlink data；Participate in S1 letter Enable creation and the modification etc. of interface.

V2X AS can be responsible for forwarding V2X message；Summarize UE information decision, to UE under send instructions etc..

S-GW is mainly responsible for the transmission of carry out business face data, major function can include: can when switching between progress eNodeB Using as local anchor point, and assist to complete the reordering function of eNodeB；Conduct when switching between 3GPP different access systems Mobility anchor equally has reordering function；Execute Lawful intercept function；Carry out the routing and forward of data packet；In uplink Label is grouped with downlink transfer layer；Under idle state, downlink grouped buffering and the service request function of initiating network-triggered； For the charging etc. between operator.

P-GW is the interface gateway of mobile network and external network, major function include packet filtering function based on user, Internet protocol (IP, Internet Protocol) address allocation function, over/under line link of Lawful intercept function, UE Middle progress data packet transport layer label carries out the charging of the uplink/downlink grade of service and service level gate, carries out based on business The control etc. of uplink/downlink rate.

PCRF entity can be used for completing dynamic quality of service (QoS, Quality of Service) policy control and dynamic The charging control function based on stream, while also provide the authorization control function etc. based on user signing contract information.

Wherein, some technical solutions of the embodiment of the present application can the communication system based on above-mentioned framework or its deformation framework To be embodied.

Fig. 2-A is referred to, Fig. 2-A is a kind of V2X dynamic regulating video transmission parametric technique provided by the embodiments of the present application Flow diagram, the method may include but be not limited to following steps:

201, V2X user equipment reports enforcement state report to V2X application server.

Wherein, V2X user equipment can be periodic or acyclic reports current enforcement to V2X application server State report.For example, V2X user equipment can periodically (the specific period can for 1 second, 10 seconds, 1 minute, 5 minutes, 10 minutes or Other durations) report current enforcement state report to V2X application server, meanwhile, V2X user equipment can also be answered in V2X Under the triggering for reporting the instruction for exercising state report with the instruction that server is sent, enforcement state is reported to V2X application server Report.

202, V2X application server receives the enforcement state report of V2X user equipment to report.The enforcement state report is taken Enforcement environment complexity parameter with V2X user equipment, the enforcement environment complexity parameter are set for characterizing the V2X user The complexity of standby enforcement environment.V2X application server determines the first video corresponding with the enforcement environment complexity parameter Encoder bit rate.

Wherein, exercising environment complexity parameter can specifically can be used for characterizing the enforcement ring of the V2X user equipment At least one parameter of the complexity in border.

203, in first video frequency coding rate not equal to used in the V2X user equipment current transmission video the In the case where two video frequency coding rates, V2X application server sends configuration update message to the V2X user equipment, described to match It sets update message and is used to indicate the V2X user equipment for video frequency coding rate used in current transmission video by described second Video frequency coding rate is updated to first video frequency coding rate.

Wherein, the V2X user device transmissions video is for example using default bearing or dedicated bearing.Default bearing is V2X Application server is not that transmission of video distributes proprietary Internet resources, and it is transmission of video that dedicated bearing, which is V2X application server, Distribute proprietary Internet resources.

The video that V2X UE is provided may be the important means that the auxiliary of other V2X UE drives, such as V2X See Through technology drives means using the camera of other vehicles as auxiliary security.- B referring to fig. 2, Fig. 2-B are illustrated Video from V2X UE is utilized to drive a kind of possible situation of means as auxiliary security.

The V2X application server determines the first carrying bandwidth corresponding with first video frequency coding rate.

It is illustrated below by some more specifically embodiments.

Referring to Fig. 3-A, Fig. 3-A is another kind V2X dynamic regulating video transmission parametric technique provided by the embodiments of the present application Flow diagram, the method may include but be not limited to following steps:

301, V2X UE reports the video capability parameter of the V2X UE to V2X AS, described by the video capability parameter Video capability for example may include video encoding standard and resolution ratio etc. that UE is supported.

V2X AS can learn that accordingly UE is propped up after receiving V2X AS and reporting the video capability parameter of the V2X UE The video encoding standard and resolution ratio held.

Such as shown in Fig. 3-B citing, V2X UE is reported to V2X AS described in the video capability parameter of the V2X UE V2X UE video capability for example may include: that the video encoding standard set supported of V2X UE (uses in citing shown in Fig. 3-B Parameter VC_set description) and the resolution ratio set (using parameter VR_set to describe in citing shown in Fig. 3-B) supported of V2X UE.

H.264 and H.265 in citing shown in Fig. 3-B, the video encoding standard set that V2X UE is supported includes:.V2X The resolution ratio set that UE is supported includes: VGA, 720P and 1080P.Certainly in practical applications, the video that V2X UE is supported Coding standard set and resolution ratio set are not limited to the example above.

302, V2X AS issues V2X communication configuration parameter to V2X UE.Wherein, V2X communication configuration parameter for example may include Time-out, authorization V2X service lists, V2X application server address etc..

V2X UE can be joined after receiving the V2X communication configuration parameter that V2X AS is issued based on the V2X communication configuration Number carries out V2X communication configuration.

303, V2X UE periodically reports enforcement state report to V2X AS, and the enforcement state report carries V2X UE Current running velocity parameter and V2X UE exercise location parameter.

304, V2X UE receives the video requirement message from V2X AS or other V2X UE.

305, V2X UE establishes transmission of video to V2X AS request.

306, V2X AS determines Video coding according to the video capability, current network resources situation or negotiation result of V2X UE Standard and resolution ratio determine video frequency coding rate in conjunction with the running velocity of V2X UE and enforcement position.

Wherein, running velocity, some possible mapping tables exercised between position and video frequency coding rate for example may be used As shown in Fig. 3-C and Fig. 3-D citing.

Wherein, in citing shown in Fig. 3-C, different zones type corresponds to different mapping tables (such as city and rural area Corresponding different mapping table), and the record in mapping table includes that the field in writing speed section and record video are compiled The field of code code rate, that is, the corresponding relationship between speed interval and video frequency coding rate is had recorded in mapping table.

Wherein, in citing shown in Fig. 3-D, different zones type correspond to same mapping relation table (such as city and rural area it is right Answer same mapping relation table), and the record in mapping table includes the word of the field in writing speed section, record area type The field of section and record video frequency coding rate, that is, area type, speed interval and coded video bitstream are had recorded in mapping table Corresponding relationship between rate.

Wherein, the running velocity based on V2X UE can determine the affiliated speed interval of this running velocity.Based on V2X UE's Exercising position can determine that this exercises enforcement region belonging to position, and then can determine and exercise area type (area corresponding to region Field type for example may include city, rural area, complex landform region, simple geomorphic province etc.).

Wherein, in practical applications, it is also also possible to combine with cartographic information, judges topography and geomorphology, according to landform Area type is divided thinner grade by looks.Such as area type also may include A grades of complex regions, B grades of complex regions, C grades Complex region, D grade complex region etc..

Specifically for example, in the case where exercising the area type in region is city, the corresponding video of speed interval 0-5km/h Encoder bit rate is 1.5M/s, and the corresponding video frequency coding rate of speed interval 5-15km/h is 2.5M/s, speed interval 15-30km/h Corresponding video frequency coding rate is 4M/s, and so on.

Specifically for example, when the area type for exercising region is rural, the corresponding video of speed interval 0-5km/h Encoder bit rate is 1M/s, and the corresponding video frequency coding rate of speed interval 5-15km/h is 2M/s, and speed interval 15-30km/h is corresponding Video frequency coding rate be 3M/s, and so on.

307, V2X AS issues configuration message to V2X UE, and affiliated configuration message carries the Video coding that V2X AS is determined Code rate.

308, UE configures transmission view based on the video frequency coding rate that configuration message carries after receiving configuration message Video frequency coding rate used in frequency.

309, UE transmits video based on the video frequency coding rate of configuration.

310, V2X UE periodically reports enforcement state report to V2X AS, and the enforcement state report carries V2X UE Current running velocity parameter and V2X UE exercise location parameter.

311, V2X AS is after receiving the enforcement state report that V2X AS is periodically reported, based on enforcement state report It carries the current running velocity parameter of V2X UE and V2X UE exercises location parameter and determines corresponding video frequency coding rate, and judge Whether the video frequency coding rate determined is different from video frequency coding rate used in V2X UE current transmission video.

If it is determined that video frequency coding rate be same as video frequency coding rate used in V2X UE current transmission video, can follow Ring executes step 311.

If it is determined that video frequency coding rate be different from V2X UE current transmission video used in video frequency coding rate (depending on Frequency encoder bit rate may become larger or become smaller), execute step 312.

312, V2X AS sends configuration update message to the V2X UE, and configuration update message carries the video of newest determination Encoder bit rate, the configuration update message are used to indicate the V2X UE for video frequency coding rate used in current transmission video By the video frequency coding rate for being updated to the newest determination of V2X AS.

313, UE configures transmission view based on the video frequency coding rate that configuration message carries after receiving configuration message Video frequency coding rate used in frequency.

Such as the video frequency coding rate of the newest determination of V2X AS is 2M/s, and V2X UE will be used in current transmission video Video frequency coding rate is 1M/s, then V2X UE can will work as forward pass after the configuration update message for receiving V2X AS transmission Video frequency coding rate used in defeated video is updated to 2M/s by 1M/s.In another example the coded video bitstream of the newest determination of V2X AS Rate is 5M/s, and video frequency coding rate used in current transmission video is 2M/s by V2X UE, then V2X UE is being received After the configuration update message that V2X AS is sent, video frequency coding rate used in current transmission video can be updated to by 2M/s 5M/s, and so on.

Wherein, shown in some possible parameter formats of configuration update message can for example illustrate such as Fig. 3-E.Parameter MID can For message identifier, indicate that this is the configuration update message of V2XAS notice V2XUE adjustment encoder bit rate.Parameter New_bitrate Indicate newest determining video frequency coding rate.Certain configuration update message is also also possible to carry other information.

314, UE continues to transmit video based on the video frequency coding rate of configuration.

As can be seen that V2X application server is in the enforcement for receiving V2X user equipment to report in the application above scheme It, can be based on the running velocity and enforcement position that the enforcement state report carries, to determine corresponding view after state report Frequency encoder bit rate, also, used in the video frequency coding rate determined not equal to the V2X user equipment current transmission video Video frequency coding rate in the case where, to video frequency coding rate used in the V2X user equipment current transmission video carry out The update of correspondence, this allows video frequency coding rate used in V2X user equipment current transmission video with current line Make the variation of speed and enforcement position and correspond to dynamic change, this is conducive to enhance video frequency coding rate and current environment of exercising is answered Matching correspondence between miscellaneous degree applies needs under several scenes so being conducive to meet.Also, V2X user equipment uses Default bearing transmits video, and under default bearing scene, the adaptive change of video frequency coding rate can directly adjust video biography Defeated bandwidth is conducive to the utilization rate for improving network bandwidth.

- A referring to fig. 4, Fig. 4-A are another kind V2X dynamic regulating video transmission parametric techniques provided by the embodiments of the present application Flow diagram, the method may include but be not limited to following steps:

401, V2X UE reports the video capability parameter of the V2X UE to V2X AS, described by the video capability parameter Video capability for example may include video encoding standard and resolution ratio etc. that UE is supported.

402, V2X AS issues V2X communication configuration parameter to V2X UE.Wherein, V2X communication configuration parameter for example may include Time-out, authorization V2X service lists, V2X application server address etc..

403, V2X UE periodically reports enforcement state report to V2X AS, and the enforcement state report carries V2X UE Current running velocity parameter and V2X UE exercise location parameter.

404, V2X UE receives the video requirement message from V2X AS or other V2X UE.

405, UE establishes the dedicated bearing for being used for transmission of video to AS request.

406, V2X AS determines Video coding according to the video capability, current network resources situation or negotiation result of V2X UE Standard and resolution ratio determine video frequency coding rate in conjunction with the running velocity of V2X UE and enforcement position.It is compiled based on determining video Code code rate determines corresponding dedicated bearing bandwidth.

407, V2X AS establishes V2X UE transmission video and is used according to determining dedicated bearing bandwidth allocation Internet resources Dedicated bearing.

408, V2X AS issues configuration message to V2X UE, and affiliated configuration message carries the Video coding that V2X AS is determined Code rate.

409, V2X UE is passed after receiving configuration message based on the video frequency coding rate that configuration message carries to configure Video frequency coding rate used in defeated video.

410, V2X UE transmits video based on the video frequency coding rate of configuration.

411, V2X UE periodically reports enforcement state report to V2X AS, and the enforcement state report carries V2X UE Current running velocity parameter and V2X UE exercise location parameter.

412, V2X AS is after receiving the enforcement state report that V2X AS is periodically reported, based on enforcement state report It carries the current running velocity parameter of V2X UE and V2X UE exercises location parameter and determines corresponding video frequency coding rate, and judge Whether the video frequency coding rate determined is different from video frequency coding rate used in V2X UE current transmission video.

If it is determined that video frequency coding rate be same as video frequency coding rate used in V2X UE current transmission video, can follow Ring executes step 412.

If it is determined that video frequency coding rate be different from V2X UE current transmission video used in video frequency coding rate (depending on Frequency encoder bit rate may become larger or become smaller), execute step 413.

413, V2X AS determines the corresponding dedicated bearing bandwidth of newest video frequency coding rate, and holds to the transmission of PCRF entity Wide update message is carried, and then PCRF is notified to adjust dedicated bearing bandwidth.

Wherein, some possible parameter formats for carrying bandwidth update message for example can be as shown in Fig. 4-B citing.Parameter Bearer_id can be carrying ID, for identifying the carrying to be adjusted.IP address (IPv4 and the IPv6 of parameter UE_ip expression UE Address), parameter New_bandwidth indicates newest dedicated bearing bandwidth.Certainly carrying bandwidth update message may be used yet Other information can be carried.

414, PCRF entity receives the carrying bandwidth update message of V2X AS, and triggering executes the bandwidth of corresponding dedicated bearing More new technological process.

415, V2X AS sends configuration update message to the V2X UE, and configuration update message carries the video of newest determination Encoder bit rate, the configuration update message are used to indicate the V2X UE for video frequency coding rate used in current transmission video By the video frequency coding rate for being updated to the newest determination of V2X AS.

416, V2X UE is passed after receiving configuration message based on the video frequency coding rate that configuration message carries to configure Video frequency coding rate used in defeated video.

Wherein, shown in some possible data formats of configuration update message can for example illustrate such as Fig. 3-E.Parameter MID can For message identifier, indicate that this is the configuration update message of V2X AS notice V2X UE adjustment encoder bit rate.Parameter New_ Bitrate indicates newest determining video frequency coding rate.Certainly, configuration update message is also also possible to carry other information.

417, V2X UE transmits video based on the video frequency coding rate of configuration.

As can be seen that V2X application server is in the enforcement for receiving V2X user equipment to report in the application above scheme It, can be corresponding to determine based on the running velocity and enforcement position etc. that the enforcement state report carries after state report Video frequency coding rate, also, made in the video frequency coding rate determined not equal to the V2X user equipment current transmission video In the case where video frequency coding rate, to video frequency coding rate used in the V2X user equipment current transmission video into The update of row correspondence, this allows video frequency coding rate used in V2X user equipment current transmission video with current Running velocity corresponds to dynamic change with the variation for exercising position, this is conducive to enhance video frequency coding rate and current enforcement environment Matching correspondence between complexity applies needs under several scenes so being conducive to meet.Also, V2X user equipment makes Video is transmitted with dedicated bearing, under dedicated bearing scene, the adaptive change based on video frequency coding rate can adjust proprietary Bandwidth is carried, is conducive to the utilization rate for improving network bandwidth, while dedicated bearing is also beneficial to continue to guarantee video transmission quality.

In some schemes of the application, V2X UE uses Uu interface, transmits video, vehicle by the interface-free resources of mobile network If transmitting video by Uu interface between, video can be uploaded to V2X AS by V2X UE-A, and V2X AS turns video It is dealt into V2X UE-B.Sometimes, V2X UE-A directly can also give transmission of video to V2X UE-B.

In the embodiment of the present application mainly by taking vehicle is V2X UE as an example, certain V2X UE is also possible to other mobile UE, when So these movements UE has running velocity and exercises position, and needs uploaded videos.

It is above-mentioned to illustrate the method for the embodiment of the present application, the device of the embodiment of the present application is provided below.

Referring to Fig. 5, the embodiment of the present application provides a kind of V2X application server 500, may include:

Communication module 510, for receiving the enforcement state report of V2X user equipment to report, the enforcement state report is taken Enforcement environment complexity parameter with V2X user equipment, the enforcement environment complexity parameter are set for characterizing the V2X user The complexity of standby enforcement environment.

Determining module 520, for determining the first video frequency coding rate corresponding with the enforcement environment complexity parameter.

The communication module 510 is also used to, current not equal to the V2X user equipment in first video frequency coding rate In the case where transmitting the second video frequency coding rate used in video, Xiang Suoshu V2X user equipment sends configuration update message, institute It states configuration update message and is used to indicate the V2X user equipment for video frequency coding rate used in current transmission video by described Second video frequency coding rate is updated to first video frequency coding rate.

The communication module 510 is also used to, and is not equal to the V2X user equipment current transmission in the first carrying bandwidth In the case where second carrying bandwidth of dedicated bearing used in video, sent to "Policy and Charging Rules Function (PCRF) entity Carry bandwidth update message.The carrying bandwidth update message is used to indicate the PCRF entity for the bandwidth of the dedicated bearing First carrying bandwidth is updated to by the second carrying bandwidth.

In some possible embodiments, the determination of determining module 520 and the enforcement environment complexity parameter pair The first video frequency coding rate answered, comprising:

In some possible embodiments, communication module 510 is also used to, in the enforcement environment for receiving another equipment transmission In the case that complexity upgrades switch fault report, if the enforcement position exercising the upgrading alarm of environment complexity and carrying, and described Enforcement position represented by the enforcement location information that the newest enforcement state report reported of V2X user equipment carries belongs to same area Domain starts timer, and sends the first interim update message of configuration to the V2X user equipment；First configuration is interim more New information is used to indicate the V2X user equipment and video frequency coding rate used in current transmission video is promoted N number of grade；When When the timer reaches, Xiang Suoshu V2X user equipment sends the second interim update message of configuration, and second configuration is interim more New information, which is used to indicate the V2X user equipment, reduces N number of grade, institute for video frequency coding rate used in current transmission video Stating N is positive integer, and another equipment is another V2X user equipment.

It should be noted that the realization of each operation can also be implemented the method shown in Fig. 2-A, 3-A or 4-A that should refer to The corresponding description of example.

Referring to Fig. 6, it may include: to intercouple that the embodiment of the present application, which provides another V2X application server 600, Memory 610 and processor 620.

Wherein, memory 610 include but is not limited to random access memory (Random Access Memory, RAM), only Read memory (Read-Only Memory, ROM), Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read Only Memory, EPROM) or portable read-only memory (Compact Disc Read-Only Memory, CD-ROM) etc., which is used for dependent instruction and data.

V2X application server 600 may also include the transceiver 630 for sending and receiving data.

Processor 620 can be one or more central processing units (Central Processing Unit, CPU), locate In the case that reason device 620 is a CPU, which can be monokaryon CPU, be also possible to multi-core CPU.

Processor 620 executes the above-mentioned implementation of the application for reading the program code stored in the memory 610 Some or all of the method executed in example by V2X application server step.

Referring to Fig. 7, the embodiment of the present application also provides a kind of V2X system, comprising: V2X application server 710 and at least one V2X user equipment 720.Wherein, the V2X user equipment 720 is for reporting enforcement state report.

The V2X application server 710 is V2X application server 500 or V2X application server 600.

The embodiment of the present application provides a kind of computer readable storage medium, wherein the computer readable storage medium is deposited Program code is stored up, wherein said program code is executed by processor to realize any one method in the embodiment of the present application Part or all of step.

The embodiment of the present application provides a kind of computer readable storage medium, wherein the computer readable storage medium is deposited Stored up program code, wherein said program code include for execute in the embodiment of the present application the part of any one method or The instruction of Overall Steps.

The embodiment of the present application provides a kind of computer program product, when computer program product is run on computers, So that the computer executes some or all of any one method step in the embodiment of the present application.

In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment Point, reference can be made to the related descriptions of other embodiments.

It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described because According to the present invention, certain steps may can be performed in other orders or simultaneously.Secondly, those skilled in the art also should Know, the embodiments described in the specification are all preferred embodiments, related actions and modules not necessarily this hair Necessary to bright.

In several embodiments provided herein, it should be understood that disclosed device, it can be by others side Formula is realized.For example, the apparatus embodiments described above are merely exemplary, such as the division of said units, only one Kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or It is desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed it is mutual it Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit It connects, can be electrical or other forms.

Above-mentioned unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.Specifically, some or all of unit therein can be selected according to the actual needs to realize the present embodiment The purpose of scheme.

In addition, each functional unit in various embodiments of the present invention can integrate in one processing unit, it is also possible to Each unit physically exists alone, and can also be integrated in one unit with two or more units.Above-mentioned integrated unit Both it can take the form of hardware realization, can also realize in the form of software functional units.

If above-mentioned integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, Can store can obtain in storage medium in a computer.Based on this understanding, technical solution of the present invention substantially or What person said the part that contributes to existing technology or the technical solution in whole or in part can be in the form of software products To embody, wherein the computer software product is stored in a computer readable storage medium, including some instructions are used So that a computer equipment (can be personal computer, server or network equipment etc., specifically can be computer and set Processor in standby) execute all or part of the steps of each embodiment above method of the invention.Wherein, storage above-mentioned Medium can include: USB flash disk, mobile hard disk, magnetic disk, CD, read-only memory (ROM, Read-Only Memory) are deposited at random The various media that can store program code such as access to memory (RAM, Random Access Memory).

The above, the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；Although referring to before Stating embodiment, invention is explained in detail, however those skilled in the art should understand that: it still can be with It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution It encloses.

Claims

1. a kind of method of car networking V2X dynamic regulating video transmission parameter characterized by comprising

The enforcement state report of V2X application server reception V2X user equipment to report, wherein the enforcement state report carries The enforcement environment complexity parameter of V2X user equipment, the enforcement environment complexity parameter is for characterizing the V2X user equipment Enforcement environment complexity；

The V2X application server determines the first video frequency coding rate corresponding with the enforcement environment complexity parameter；

It is compiled in first video frequency coding rate not equal to the second video used in the V2X user equipment current transmission video In the case where code code rate, the V2X application server sends configuration update message to the V2X user equipment, and the configuration is more New information is used to indicate the V2X user equipment for video frequency coding rate used in current transmission video by second video Encoder bit rate is updated to first video frequency coding rate.

2. the method according to claim 1, wherein the V2X user device transmissions video uses default bearing Or dedicated bearing.

3. according to the method described in claim 2, it is characterized in that, being held in the V2X user device transmissions video using proprietary In the case where load, the method also includes:

In second of the first carrying bandwidth not equal to dedicated bearing used in the V2X user equipment current transmission video In the case where carrying bandwidth, the V2X application server sends carrying bandwidth more to "Policy and Charging Rules Function PCRF entity New information, the carrying bandwidth update message are used to indicate the PCRF entity for the bandwidth of the dedicated bearing by the second carrying Bandwidth is updated to the first carrying bandwidth.

4. according to claim 1 to method described in 3 any one, which is characterized in that the enforcement environment complexity parameter packet It includes running velocity information and exercises location information.

5. according to the method described in claim 4, it is characterized in that, V2X application server determination and the enforcement environment Corresponding first video frequency coding rate of complexity parameter, comprising:

In mapping table corresponding with the enforcement location information, searches the mapping with the running velocity information matches and close System records, and has recorded the first video frequency coding rate in the mapping relations record；Alternatively, in mapping table search with it is described Running velocity information and the matched mapping relations of the enforcement location information record, and have recorded first in the mapping relations record Video frequency coding rate.

6. according to method described in claim 4 to 5 any one, which is characterized in that

The method also includes:

In the case where receiving the enforcement environment complexity upgrading switch fault report that another equipment is sent, if the enforcement environment is multiple The enforcement position that miscellaneous degree upgrading alarm carries, the enforcement carried with the newest enforcement state report reported of the V2X user equipment Enforcement position represented by location information belongs to the same area, and the V2X application server starts timer, and to the V2X User equipment sends the first interim update message of configuration；The interim update message of first configuration is used to indicate the V2X user Video frequency coding rate used in current transmission video is promoted N number of grade by equipment；When the timer reaches, the V2X Application server sends the second interim update message of configuration, the interim update message of second configuration to the V2X user equipment Being used to indicate the V2X user equipment reduces N number of grade for video frequency coding rate used in current transmission video, and the N is Positive integer, another equipment are another V2X user equipment.

7. a kind of car networking V2X application server characterized by comprising

Communication module, for receiving the enforcement state report of V2X user equipment to report, the enforcement state report carries V2X and uses The enforcement environment complexity parameter of family equipment, the row exercised environment complexity parameter and be used to characterize the V2X user equipment Make the complexity of environment；

Determining module, for determining the first video frequency coding rate corresponding with the enforcement environment complexity parameter；

The communication module is also used to, and is regarded in first video frequency coding rate not equal to the V2X user equipment current transmission In the case where second video frequency coding rate used in frequency, Xiang Suoshu V2X user equipment sends configuration update message, the configuration Update message is used to indicate the V2X user equipment and regards video frequency coding rate used in current transmission video by described second Frequency encoder bit rate is updated to first video frequency coding rate.

8. V2X application server according to claim 7, which is characterized in that the V2X user device transmissions video uses Default bearing or dedicated bearing.

9. V2X application server according to claim 8, which is characterized in that make in the V2X user device transmissions video In the case where with dedicated bearing, the determining module is also used to, the V2X application server determination and first Video coding The corresponding first carrying bandwidth of code rate；

The communication module is also used to, and is not equal to V2X user equipment current transmission video institute in the first carrying bandwidth In the case where second carrying bandwidth of the dedicated bearing used, carrying bandwidth is sent to "Policy and Charging Rules Function PCRF entity Update message, the carrying bandwidth update message are used to indicate the PCRF entity and hold the bandwidth of the dedicated bearing by second It carries and wide is updated to the first carrying bandwidth.

10. according to V2X application server described in claim 7 to 9 any one, which is characterized in that the enforcement environment is multiple Miscellaneous degree parameter includes running velocity information and enforcement location information.

11. V2X application server according to claim 10, which is characterized in that the determining module determination and the row Make corresponding first video frequency coding rate of environment complexity parameter, comprising:

12. V2X application server described in 0 to 11 any one according to claim 1, which is characterized in that the communication module It is also used to, in the case where receiving the enforcement environment complexity upgrading switch fault report that another equipment is sent, if the enforcement ring The enforcement position that complexity upgrading alarm in border carries is carried with the newest enforcement state report reported of the V2X user equipment It exercises enforcement position represented by location information and belongs to the same area, start timer, and send the to the V2X user equipment The one interim update message of configuration；The interim update message of first configuration is used to indicate the V2X user equipment for current transmission Video frequency coding rate used in video promotes N number of grade；When the timer reaches, Xiang Suoshu V2X user equipment is sent The second interim update message of configuration, the interim update message of second configuration, which is used to indicate the V2X user equipment, will work as forward pass Video frequency coding rate used in defeated video reduces N number of grade, and the N is positive integer, and another equipment is another V2X user Equipment.

13. a kind of V2X application server characterized by comprising

The memory and processor to intercouple；

Wherein, the processor executes the program stored in the memory, to require 1 to 6 any one for perform claim The method.

14. a kind of V2X system characterized by comprising

V2X application server and at least one V2X user equipment；

Wherein, the V2X user equipment is for reporting enforcement state report；

The V2X application server is V2X application server described in claim 1 to 6 any one.

15. a kind of computer readable storage medium, which is characterized in that

The computer-readable recording medium storage program code, said program code are executed by processor to realize that right is wanted Seek method described in 1 to 6 any one.