CN105282688B - A kind of method and roadside unit of information transmission - Google Patents
A kind of method and roadside unit of information transmission Download PDFInfo
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- CN105282688B CN105282688B CN201510734057.9A CN201510734057A CN105282688B CN 105282688 B CN105282688 B CN 105282688B CN 201510734057 A CN201510734057 A CN 201510734057A CN 105282688 B CN105282688 B CN 105282688B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000013507 mapping Methods 0.000 claims abstract description 17
- 238000012546 transfer Methods 0.000 claims description 5
- 239000000872 buffer Substances 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000006855 networking Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101001093748 Homo sapiens Phosphatidylinositol N-acetylglucosaminyltransferase subunit P Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/246—Connectivity information discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a kind of methods of information transmission, include: that roadside unit RSU receives the D2D discovery map information that terminal is sent, includes that closing on for the terminal buffers is served by mark and closes on the mapping relations of service application code and the validity period of the mapping relations in the D2D discovery map information；The map information is forwarded to other roadside units for meeting preset condition by the RSU；The RSU is to belong to some or all of the terminal configuration map information of RSU content, carries out the transmission that D2D has found related news according to the map information of configuration to belong to the terminal of the RSU.The embodiment of the invention also discloses a kind of roadside units.Using the present invention, the delay of V2X business transmission can be reduced, meet the transmission demand of urgent V2X business.
Description
Technical field
The method and roadside unit transmitted the present invention relates to field of communication technology more particularly to a kind of information.
Background technique
The information exchange of vehicle and extraneous (Vehicle to X, abbreviation V2X), is the key that the following intelligent transport system
Technology.It communicate vehicle can with vehicle, vehicle between base station, vehicle and mobile device.To obtain real-time road, road letter
A series of traffic informations such as breath, pedestrian information reduce congestion to improve drive safety, improve traffic efficiency etc..It can be with
Information exchange including vehicle Yu vehicle (Vehicle to Vehicle, abbreviation V2V), vehicle and infrastructure (Vehicle
To Infrastructure, abbreviation V2I) information exchange and vehicle and mobile device (Vehicle to nomadic
Devices, abbreviation V2N) information exchange.
Many V2X applications will improve safety, vehicle pass-through and energy consumption.V2X is also beneficial to realize following cruise
Assist highway and automatic Pilot.In the prior art, dedicated short-range communication technology (Dedicated Short is generallyd use
Range Communications, abbreviation DSRC) transmit V2X business, but its transmission objective such as communication distance, time delay or can
V2X business is unable to satisfy to the technical need of transmission objective by property etc., and industry is being studied based on equipment and equipment (Device-
To-Device, abbreviation D2D) discovery technique transmits the scheme of V2V urgency traffic content.Present in traditional D2D discovery technique
It was found that delay, due to needing to interact with network side entity, delay is larger, is unfavorable for the transmission of V2X business.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing a kind of method and device of information transmission.With solution
The certainly larger problem of V2X business transmission delay.
In order to solve the above-mentioned technical problem, first aspect of the embodiment of the present invention provides a kind of method of information transmission, packet
It includes:
Roadside unit RSU receives the D2D that terminal is sent and finds map information, and including in the D2D discovery map information should
Closing on for terminal buffers is served by the effective of the mapping relations and the mapping relations for identifying and closing on service application code
Phase；
The map information is forwarded to other roadside units for meeting preset condition by the RSU；
The RSU is to belong to some or all of the terminal configuration map information of RSU content, to belong to
The transmission that D2D has found related news is carried out according to the map information of configuration in the terminal of the RSU.
Wherein, the method also includes:
The RSU with close on service function entity in the map information increase newly content carry out authenticity and/or when
The verifying of effect property.
Wherein, the preset condition comprises at least one of the following:
Positioned at default section or predeterminable area；
With at a distance from the RSU be less than or equal to preset threshold.
Wherein, the map information passes through user face data channel transfer, and is to belong to the RSU in the RSU
When terminal configures some or all of map information content, the section according to locating for terminal and/or position range information are
The map information of terminal configuration and the locating section and/or position range information matches.
Wherein, the RSU be belong to the RSU terminal configure some or all of map information content it
Before, further includes:
RSU grouping is added in the RSU, and the map information of the RSU caching in same RSU grouping is identical；
The RSU is to belong to some or all of the terminal configuration map information of RSU content, comprising:
If the RSU belonged into the terminal of the RSU coverage area and the RSU are located at same RSU grouping, described
RSU is not necessarily to the map information that it is cached to the terminal broadcast；
It is grouped if the RSU belonged into the terminal of the RSU coverage area and the RSU are not located at same RSU,
The terminal switches to after the RSU, and the RSU carries out map information matching with the RSU that the terminal belongs to before the handover, if
With success, then the RSU indicates that the terminal continues to use original map information, if matching is unsuccessful, the RSU is to the end
The map information of its caching of end broadcast.
Second aspect of the embodiment of the present invention provides a kind of roadside unit, comprising:
Receiving module, the D2D for receiving terminal transmission have found map information, include in the D2D discovery map information
The closing on of the terminal buffers is served by mark and closes on the mapping relations of service application code and having for the mapping relations
The effect phase；
Forwarding module is forwarded to other roadside units for meeting preset condition for the map information；
Configuration module configures some or all of map information content for the terminal to belong to the RSU, with
Just the terminal for belonging to the RSU carries out the transmission of D2D discovery related news according to the map information of configuration.
Wherein, the roadside unit further include:
Authentication module, for close on service function entity in the map information increase newly content carry out authenticity
And/or the verifying of timeliness.
Wherein, the preset condition comprises at least one of the following:
Positioned at default section or predeterminable area；
With at a distance from the RSU be less than or equal to preset threshold.
Wherein, the map information is by user face data channel transfer, and the configuration module was specifically used for according to end
The locating section in end and/or position range information, for terminal configuration and the locating section and/or position range information matches
Map information.
Wherein, the roadside unit further include:
Module is added, for RSU grouping to be added, the map information of the RSU caching in same RSU grouping is identical；
The configuration module is specifically used for:
If the RSU belonged into the terminal of the RSU coverage area and the RSU are located at same RSU grouping, it is not necessarily to
The map information that it is cached to the terminal broadcast；
It is grouped if the RSU belonged into the terminal of the RSU coverage area and the RSU are not located at same RSU,
The terminal switches to after the RSU, and the RSU that the configuration module and the terminal belong to before the handover carries out map information
Match, if successful match, the configuration module indicates that the terminal continues to use original map information, if matching is unsuccessful,
The configuration module map information that it is cached to the terminal broadcast.
The implementation of the embodiments of the present invention has the following beneficial effects:
The D2D that terminal is sent is received by roadside unit and finds map information, and is expanded by the forwarding that RSU completes map information
The scattered and configuration to other terminals, so that map information can be completed at car networking end with cooperating for RSU by terminal by realizing
Maintenance between end, whole process is not necessarily to and the network side of core net interacts, and is used for reduce D2D discovery technique
The delay of V2X business is particularly advantageous for the transmission of V2X urgency traffic, sufficiently meets demand of the V2X business to transmission delay, can
To provide higher speed more stable faster V2X business transmission for user, to improve traffic safety degree.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram of the first embodiment of the method for information transmission of the present invention；
Fig. 2 is the flow diagram of the second embodiment of the method for information transmission of the present invention；
Fig. 3 is the flow diagram of the 3rd embodiment of the method for information transmission of the present invention；
Fig. 4 is the composition schematic diagram of the first embodiment of roadside unit of the present invention；
Fig. 5 is the composition schematic diagram of the second embodiment of roadside unit of the present invention；
Fig. 6 is the composition schematic diagram of the 3rd embodiment of roadside unit of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Carrying out the transmission of V2X business by equipment and equipment (Device-to-Device, abbreviation D2D) technology, there are two types of sides
Formula, a kind of transport protocol using D2D discovery technique can disappear under this agreement using the application layer messages of V2X as D2D discovery
The payload of breath, by physical layer side to discovery channel (Physical layer Sidelink Discovery Channel, letter
Claim PSDCH) it issues in a broadcast manner；Another then transport protocol based on the D2D communication technology can incite somebody to action under this agreement
The application layer messages of V2X are as D2D communication data in physical layer side to control channel (Physical layer Sidelink
Control Channel, abbreviation PSCCH) and physical layer side to shared channel (Physical layer Sidelink Shared
Channel, abbreviation PSSCH) transmission.The embodiment of the present invention mainly considers that the transport protocol based on D2D discovery technique carries out V2X industry
The transmission of the transmission especially V2V and/or V2I business of business.
There are the two kinds of resources method of salary distribution, i.e. base station scheduling method and Resource Pool Pattern in D2D discovery technique, wherein base station
Scheduling method is that the resource that can be dispatched by base station according to it actively carries out scheduling of resource for the terminal of its covering；And resource pool mould
Formula, then form resource pool by part resource, and different terminals, using the resource in resource pool, is being used by resource request
When, resource pool manager is that used resource encloses the mark of occupancy, when after use, simultaneously by the resource reclaim to resource pool
Release the mark occupied.When carrying out D2D discovery based on both modes, all there may be the delays in signaling, especially if
Network side entity is involved (involve) when coming in, and the time delay of generation is more.
Under the scene of V2X business transmission, the entity of the control V2X business transmission of network side can be in the embodiment of the present invention
Service function entity (Proximity Based Services Function, abbreviation ProSe are closed on based on D2D functional entity
Function it) realizes, can be used as the entity of car networking control after enhancing it.This mode is primarily suitable for D2D skill
Art carries out V2X business transmission.The relevant control of V2X can independently be disposed with D2D functional entity, also can integrate setting, but
From the angle that agreement is simplified and reuses, the PC3 interface between terminal and ProSe Function can be reused.Certainly, it controls
The functional entity or device of V2X business transmission processed can also be independently arranged, and the embodiment of the present invention is not limited in any way.Roadside unit
(Road Side Unit, abbreviation RSU) can be realized by static terminal, can also be realized by small-sized base station.At this
In inventive embodiments, RSU is mainly realized with base station manner, it is also contemplated that with that can provide the base of convergence access for car-mounted terminal
It is realized in the femto cell (T-SC) of terminal type.The transmission of V2X business includes that V2V and V2I can be using based on D2D agreement
Transmitted by PC5 interface.The terminal can be the movement for supporting the user of D2D agreement to hold in the present invention
Terminal is also possible to be integrated in the car-mounted terminal in vehicle.
Fig. 1 is please referred to, is the flow diagram of the first embodiment of the method for information of the present invention transmission, in the present embodiment
In, it the described method comprises the following steps:
S101, roadside unit RSU receive the D2D that terminal is sent and find map information.
It wherein, include that closing on for the terminal buffers is served by mark (ProSe in the D2D discovery map information
Application ID) and close on the mapping relations of service application code (ProSe Application Code) and described reflect
Penetrate the validity period of relationship；
Optionally, terminal reports map information and is not limited to the wireless heterogeneous networks (Radio between using terminal and RSU
Resource Control, abbreviation RRC) or PC5 chain of command agreement, the agreement interconnected between the network in user face can be used
(Internet Protocol, abbreviation IP) is connected to application layer progress, can reduce account for macro base station control resource in this way
With the influence to existing specification can also be reduced.
The map information is forwarded to other roadside units for meeting preset condition by S102, the RSU.
Wherein, the preset condition comprises at least one of the following:
Positioned at default section or predeterminable area；
With at a distance from the RSU be less than or equal to preset threshold.
Specifically, map information can be forwarded by the RSU by map information by the interface between RSU, by
Map information progress can be made quickly timely to spread in wired backhaul.
When forwarding diffusion, the RSU be directed to map information by the prediction to terminal mobility
The diffusion and propagation of property.For example, when a vehicle enter one section of highway entrance when, can by this mechanism so that
All there are these map informations in the RSU of this section of highway.Or make some RSU closed on current RSU that there are these
Map information.Or can two kinds of conditions considered simultaneously to carry out the forwarding of map information.To improve map information forwarding
Purpose.
S103, the RSU are to belong to some or all of the terminal configuration map information of RSU content, with
Just the terminal for belonging to the RSU carries out the transmission of D2D discovery related news according to the map information of configuration.
D2D discovery related news herein can include but is not limited to carry out the message of interaction when D2D discovery between terminal,
Such as D2D has found the response message of message and D2D discovery message.
Optionally, the map information can be matched by user face data channel transfer so as to reduce map information
Control signaling when setting.
It, can and when the RSU is some or all of the terminal configuration map information for belonging to RSU content
With the section according to locating for terminal and/or position range information, for terminal configuration and the locating section and/or position range
The map information of information matches.For example, terminal enters some high speed crossing, then the RSU will only can be related on this section of expressway
And to map information be sent to terminal or when terminal enters some position range, the RSU can be only by the position model
The map information being related in enclosing sends terminal, to reduce the transmission quantity of map information, is lifted out map information and sends and match
The efficiency and purpose set.Certainly, all map informations that the RSU can also be cached directly are sent to terminal, this hair
Bright embodiment does not do any restriction.
The D2D that terminal is sent is received by roadside unit and finds map information, and is expanded by the forwarding that RSU completes map information
The scattered and configuration to other terminals, so that map information can be completed at car networking end with cooperating for RSU by terminal by realizing
Maintenance between end, whole process is not necessarily to and the network side of core net interacts, and is used for reduce D2D discovery technique
The delay of V2X business is particularly advantageous for the transmission of V2X urgency traffic, sufficiently meets demand of the V2X business to transmission delay, can
To provide higher speed more stable faster V2X business transmission for user, to improve traffic safety degree.
It referring to figure 2., is the flow diagram of the second embodiment of the method for information of the present invention transmission, in the present embodiment
In, step S201 is identical as step S101, and step S203-S204 is identical with step S102-S103, and details are not described herein again, with
After step S101 identical step S201, the method also includes following steps:
S202, the RSU with close on service function entity (ProSe Function) in the map information increase newly
Content carries out the verifying of authenticity and/or timeliness.
The main purpose verified is the validity in order to guarantee the map information of RSU caching, prevents personation information, with
And it is asynchronous with network side equipment.
Wherein, the cable network connection of high-speed high capacity, Neng Goushi be can configure between RSU the and ProSe Function
Now high speed and in real time interaction.To reduce time delay caused by verifying.
It referring to figure 3., is the flow diagram of the 3rd embodiment of the method for information of the present invention transmission, in the present embodiment
In, step S301-S304 is identical as the step S201-S204 in Fig. 2, and details are not described herein again, identical with step S204
After S304, the method also includes following steps:
RSU grouping (RSU group) is added in S305, the RSU.
Wherein, the map information of the RSU caching in same RSU grouping is identical.
S306, if the terminal RSU that is belonged to and the RSU into the RSU coverage area are located at same RSU and are grouped,
Then the RSU is not necessarily to the map information that it is cached to the terminal broadcast.
S307, if the terminal RSU that is belonged to and the RSU into the RSU coverage area are not located at same RSU points
Group, then after the terminal switches to the RSU, the RSU carries out map information with the RSU that the terminal belongs to before the handover
Match, if successful match, the RSU indicates that the terminal continues to use original map information, described if matching is unsuccessful
The RSU map information that it is cached to the terminal broadcast.
In the present embodiment, in order to reduce the unnecessary broadcast of RSU, a mapping can be constructed at least two RSU and believed
Fully synchronized RSU grouping is ceased, map information is fully synchronized between the RSU within same grouping, in this way, when car networking terminal exists
When change in location occurring between the RSU in one grouping or even switching, the update for carrying out mapping message, similarly, RSU are not needed
The terminal is given without broadcast mapping information, to save energy consumption and signaling overheads.
And the RSU for being not belonging to the same RSU group, terminal follow vehicle in the process of moving, can execute RSU it
Between switching.After the completion of switching, it can decide whether to send map information by base station to terminal.For example, the process can
By the RSU after switching and the connection reconstruct of the radio resource control between terminal (RRC Connection
Reconfiguration) message triggers.
And after determining to need to send, if there are the synchronization of map information and comparing relationship between RSU, sending
Before, the matching of map information can first be carried out.
If map information is identical, original broadcast message can be continued to use from new RSU to terminal instruction.
If map information is different, or can not compare, then from new RSU to terminal broadcast map information.
It should be noted that can also carry out unified grouping by base station other than RSU is actively added grouping or carry out group
The adjustment of interior RSU.
It referring to figure 4., is the composition schematic diagram of the first embodiment of roadside unit of the present invention；In the present embodiment, described
Terminal includes:
Receiving module 100, the D2D for receiving terminal transmission have found map information, wrap in the D2D discovery map information
It includes closing on for the terminal buffers and is served by the mapping relations and the mapping relations for identifying and closing on service application code
Validity period；
Forwarding module 200 is forwarded to other roadside units for meeting preset condition for the map information；
Configuration module 300, for being configured in some or all of described map information for the terminal that belongs to the RSU
Hold, the transmission that D2D has found related news is carried out according to the map information of configuration to belong to the terminal of the RSU.
Optionally, the preset condition comprises at least one of the following:
Positioned at default section or predeterminable area；
With at a distance from the RSU be less than or equal to preset threshold.
Optionally, the map information is by user face data channel transfer, and the configuration module 300 is specifically used for root
According to section locating for terminal and/or position range information, for terminal configuration and the locating section and/or position range information
Matched map information.
It referring to figure 5., is the composition schematic diagram of the second embodiment of roadside unit of the present invention, in the present embodiment, with Fig. 4
Illustrated embodiment is compared, roadside unit described in the embodiment of the present invention further include:
Authentication module 400, for close on service function entity the content increased newly in the map information carried out it is true
The verifying of property and/or timeliness.
Fig. 6 is please referred to, is the composition schematic diagram of the 3rd embodiment of roadside unit of the present invention, in the present embodiment, with Fig. 5
Illustrated embodiment is compared, roadside unit described in the embodiment of the present invention further include:
Module 500 is added, for RSU grouping to be added, the map information of the RSU caching in same RSU grouping is identical；
The configuration module 300 is specifically used for:
If the RSU belonged into the terminal of the RSU coverage area and the RSU are located at same RSU grouping, it is not necessarily to
The map information that it is cached to the terminal broadcast；
It is grouped if the RSU belonged into the terminal of the RSU coverage area and the RSU are not located at same RSU,
The terminal switches to after the RSU, and the configuration module 300 carries out map information with the RSU that the terminal belongs to before the handover
Matching, if successful match, the configuration module 300 indicates that the terminal continues to use original map information, if matching not at
Function, then the configuration module 300 to the terminal broadcast its cache map information.
The above receiving module 100, forwarding module 200, configuration module 300, authentication module 400 and module 500 is added can be with
It is individually present, also can integrate setting, receiving module 100, forwarding module 200, configuration module 300, authentication module 400 or addition
Module 500 can be separately provided independently of the processor of roadside unit in the form of hardware, and form is arranged and can be micro process
The form of device；It can also be embedded in the form of hardware in the processor of the roadside unit, this can also be stored in a software form
In the memory of roadside unit, the above receiving module 100, forwarding module are executed in order to which the processor of the roadside unit calls
200, configuration module 300, authentication module 400 and the addition corresponding operation of module 500.
For example, in the 3rd embodiment (embodiment shown in fig. 6) of roadside unit of the present invention, configuration module 300 can be with
For the processor of the roadside unit, and receiving module 100, forwarding module 200, authentication module 400 and the function that module 500 is added
It can be embedded in the processor, can also be separately provided independently of processor, storage can also be stored in the form of software
In device, it achieve its function by call from the processor.The embodiment of the present invention does not do any restrictions.The above processor can be central processing
Unit (CPU), microprocessor, single-chip microcontroller etc..
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is all differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place referring to
The part of embodiment of the method illustrates.
Description through the foregoing embodiment, the invention has the following advantages that
The D2D that terminal is sent is received by roadside unit and finds map information, and is expanded by the forwarding that RSU completes map information
The scattered and configuration to other terminals, so that map information can be completed at car networking end with cooperating for RSU by terminal by realizing
Maintenance between end, whole process is not necessarily to and the network side of core net interacts, and is used for reduce D2D discovery technique
The delay of V2X business is particularly advantageous for the transmission of V2X urgency traffic, sufficiently meets demand of the V2X business to transmission delay, can
To provide higher speed more stable faster V2X business transmission for user, to improve traffic safety degree.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, abbreviation ROM) or random access memory (Random
Access Memory, abbreviation RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (8)
1. a kind of method of information transmission characterized by comprising
Roadside unit RSU receives the D2D that terminal is sent and finds map information, includes the terminal in the D2D discovery map information
Closing on for caching is served by mark and closes on the mapping relations of service application code and the validity period of the mapping relations；
The map information is forwarded to other roadside units for meeting preset condition by the RSU；
The RSU is to belong to some or all of the terminal configuration map information of RSU content, to belong to
The terminal for stating RSU carries out the transmission of D2D discovery related news according to the map information of configuration；
The preset condition comprises at least one of the following:
Positioned at default section or predeterminable area；
With at a distance from the RSU be less than or equal to preset threshold.
2. the method as described in claim 1, which is characterized in that receive the D2D discovery that terminal is sent in the roadside unit RSU
After map information, the method also includes:
The RSU with close on service function entity authenticity and/or timeliness carried out to the content increased newly in the map information
Verifying.
3. the method as described in claim 1, which is characterized in that the map information passes through user face data channel transfer, and
When the RSU is some or all of the terminal configuration map information for belonging to RSU content, according to locating for terminal
Section and/or position range information, for the mapping of terminal configuration and the locating section and/or position range information matches
Information.
4. the method according to claim 1, which is characterized in that in the RSU be the terminal for belonging to the RSU
Before configuring some or all of map information content, further includes:
RSU grouping is added in the RSU, and the map information of the RSU caching in same RSU grouping is identical；
The RSU is to belong to some or all of the terminal configuration map information of RSU content, comprising:
If the RSU belonged into the terminal of the RSU coverage area and the RSU are located at same RSU grouping, the RSU
Without the map information that it is cached to the terminal broadcast；
It is grouped if the RSU belonged into the terminal of the RSU coverage area and the RSU are not located at same RSU, at the end
End switches to after the RSU, and the RSU that the RSU and the terminal belong to before the handover carries out map information matching, if matching at
Function, then the RSU indicates that the terminal continues to use original map information, if matching is unsuccessful, the RSU is wide to the terminal
Broadcast the map information of its caching.
5. a kind of roadside unit RSU characterized by comprising
Receiving module, the D2D for receiving terminal transmission have found map information, include the end in the D2D discovery map information
Closing on for end caching is served by mark and closes on the mapping relations of service application code and the validity period of the mapping relations；
Forwarding module is forwarded to other roadside units for meeting preset condition for the map information；
Configuration module configures some or all of map information content for the terminal to belong to the RSU, to return
The terminal for belonging to the RSU carries out the transmission of D2D discovery related news according to the map information of configuration；
The preset condition comprises at least one of the following:
Positioned at default section or predeterminable area；
With at a distance from the RSU be less than or equal to preset threshold.
6. roadside unit as claimed in claim 5, which is characterized in that the roadside unit further include:
Authentication module, for close on service function entity in the map information increase newly content carry out authenticity and/or
The verifying of timeliness.
7. roadside unit as claimed in claim 5, which is characterized in that the map information is passed by user face data channel
It is defeated, and the configuration module be specifically used for the section according to locating for terminal and/or position range information, for terminal configuration with it is described
The map information in locating section and/or position range information matches.
8. roadside unit as claimed in claim 7, which is characterized in that the roadside unit further include:
Module is added, for RSU grouping to be added, the map information of the RSU caching in same RSU grouping is identical；
The configuration module is specifically used for:
If the RSU belonged into the terminal of the RSU coverage area and the RSU are located at same RSU grouping, it is not necessarily to this
The map information of its caching of terminal broadcast；
It is grouped if the RSU belonged into the terminal of the RSU coverage area and the RSU are not located at same RSU, at the end
End switches to after the RSU, and the RSU that the configuration module and the terminal belong to before the handover carries out map information matching, if
Successful match, then the configuration module indicates that the terminal continues to use original map information, described to match if matching is unsuccessful
Set the module map information that it is cached to the terminal broadcast.
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| CN201510734057.9A CN105282688B (en) | 2015-10-30 | 2015-10-30 | A kind of method and roadside unit of information transmission |
| PCT/CN2016/072870 WO2017071137A1 (en) | 2015-10-30 | 2016-01-29 | Information transmission method and road side unit |
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| CN201510734057.9A CN105282688B (en) | 2015-10-30 | 2015-10-30 | A kind of method and roadside unit of information transmission |
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| CN105282688B (en) * | 2015-10-30 | 2018-12-25 | 东莞酷派软件技术有限公司 | A kind of method and roadside unit of information transmission |
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| CN107046461B (en) * | 2016-02-05 | 2022-06-07 | 北京三星通信技术研究有限公司 | V2X terminal time-frequency synchronization sending and receiving processing method and device |
| KR102451687B1 (en) * | 2016-02-19 | 2022-10-07 | 삼성전자주식회사 | Apparatus and method for detecting loaction in communication system supporting device to device scheme |
| CN107135485B (en) * | 2016-02-26 | 2020-06-12 | 电信科学技术研究院 | Method and device for establishing vehicle-to-everything session request and determining transmission cell |
| WO2017173586A1 (en) * | 2016-04-05 | 2017-10-12 | 华为技术有限公司 | User terminal management method and related device |
| US11071040B2 (en) * | 2016-06-29 | 2021-07-20 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | D2D communication method and D2D device |
| US9936440B2 (en) * | 2016-07-12 | 2018-04-03 | Coco Communications Corp. | Systems and methods for automatic transmission rate control in a vehicle-based wireless network |
| DE102017218316A1 (en) | 2017-07-18 | 2019-01-24 | Robert Bosch Gmbh | A method of operating a roadside network entity and roadside network entity |
| CN108205905B (en) * | 2018-01-02 | 2020-08-21 | 南京逸杰软件科技有限公司 | Intelligent road side terminal ad hoc network information negotiation and release system |
| CN110324784B (en) * | 2018-03-29 | 2021-02-19 | 维沃移动通信有限公司 | Communication range information processing method and terminal |
| CN108737990A (en) * | 2018-05-09 | 2018-11-02 | 国家计算机网络与信息安全管理中心 | A kind of multiple target real time data dispatching algorithm under In-vehicle networking environment |
| CN109391681B (en) * | 2018-09-14 | 2021-07-16 | 重庆邮电大学 | MEC-based V2X mobility prediction and content caching offloading scheme |
| EP3874777A1 (en) * | 2018-10-31 | 2021-09-08 | Convida Wireless, Llc | New radio vehicle sidelink discovery |
| CN113366814B (en) * | 2019-03-18 | 2024-04-26 | 索尼集团公司 | Method for managing resource allocation in edge computing system |
| US11601919B2 (en) | 2019-11-28 | 2023-03-07 | Apple Inc. | V2X sidelink channel design |
| WO2021195952A1 (en) * | 2020-03-31 | 2021-10-07 | Oppo广东移动通信有限公司 | Information processing method, device, system, and storage medium |
| CN112800156B (en) * | 2021-01-06 | 2023-10-13 | 迪爱斯信息技术股份有限公司 | Method, system, equipment and storage medium for framing unit map based on road side |
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