CN109792616A - Direct message transmission success rate assessment between mobile equipment in wireless network - Google Patents
Direct message transmission success rate assessment between mobile equipment in wireless network Download PDFInfo
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- CN109792616A CN109792616A CN201780004436.XA CN201780004436A CN109792616A CN 109792616 A CN109792616 A CN 109792616A CN 201780004436 A CN201780004436 A CN 201780004436A CN 109792616 A CN109792616 A CN 109792616A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
The present invention discloses between a kind of mobile equipment in wireless network directly message transmission success rate appraisal procedure, and first group of mobile device is selected from the attached mobile device in the network.First group of mobile device transmits at least one predefined test post at least one other mobile device in the network.The equipment for receiving the test post of transmission decodes the test post and measures the quantity of MESSAGE SUCCESSFULLY DECODED.Success rate assessment is generated according to the quantity of the MESSAGE SUCCESSFULLY DECODED.
Description
Technical field
The present invention relates to message transmission success rate appraisal procedure direct between several mobile devices in a kind of wireless network and dresses
It sets.
Background technique
Mobile device in conventional wireless network relies on cellular messages to support the communication of mobile device.In traditional network
In, when being communicated between a pair of of mobile device, communicated by network node control.The transmission of uplink and downlink is all logical
Mobile device is crossed with network node to complete.
Need to be communicated by network node between mobile device to change, using between mobile device be directly connected to come
Carry out direct communication.Here, the effect of network node is only in that the direct connection of foundation to distribute resource.3GPP LTE release
13 points are about decentralized communication type, this term " sidelinks " refers to be directly connected between mobile device, a pair of of mobile device
Between be directly connected to be realized by the PC5 interface of each mobile device.
Situation there are two types of being directly connected to is established between mobile device, the first is that a mobile device is another in " in range "
A mobile device is in " outside range ", when a mobile device is at " in range ", by between base station and mobile device
Connection keeps the mobile device synchronous with network node.In this case, the mobile device " in range " can receive synchronous letter
Number system information can be also received, to enter PC5 link.On the other hand, when mobile device is at " outside range ", the movement is set
It is standby to enter PC5 link using the connection between mobile device and base station without right.In this case, the shifting
Dynamic device request isochronous resources.
For energy direct communication between mobile device, there are two types of the resource pools of type: the pond scheduler task (SA), that is, side chain
Road controls pond and message pool.Message is transmitted by scheduler task pond to show that the message in message pool is transmitted.The message pool is
In order to transmit message.Each resource pool is made of a large amount of resource or Physical Resource Block.
Each message transmission is related to a SA transmission, receives message parameter with information mobile device.The receiving end
Mobile device needs to decode control transmission and decodes the message.
Each mobile device works in a half-duplex mode, and each mobile device cannot be received and be passed in same subframe
Defeated, therefore, in every SA time, mobile device transmission and reception SA and message cannot occur in identical subframe.Here art
Language " SA time " refers to the time after the resource allocation of SA transmission generating unit.
Fig. 1 is the SA time diagram with corresponding SA and message pool.The SA time is by the pond SA and continuous meassage pond group
At.Each pond includes several resource blocks for being defined within time and frequency range.In other examples, the SA resource and message
Resource is often multiplexed, and the SA and message source are placed on identical subframe but in different frequencies in time range
Rate.
Block in the pond SA with corresponding shade shows that a special SA transmission is to be repeated twice, in message pool
Block with corresponding shade shows that a special message transmission is to be repeated four times, and therefore, mobile device is in special subframe
Other modes be transmitted through from other mobile device reception scheduler task and information, this is conducive to overcome half-duplex
Work there are the problem of.
Selecting resource by the transmission mobile equipment, there are two types of modes: mode 1 and mode 2.Network node in mode 1
The SA and message source are distributed, in this case, the mobile device is based on UU connection and sends a request to the network section
Point, the network node respond distribution by special down link control information (DCI).Therefore, mode 1 is free distribution resource
Mode.
The mobile device distribution money in the case where not obtaining any assistance from the network node in mode 2
Source, in this case, in every SA time, mobile device needs to transmit, therefore its random selection resource, and mode 2 represents
A kind of basic model for distributing resource.Therefore, resource selection is easy to happen conflict.This is that there are many move for a special problem
Message collision is relatively high if dynamic equipment.
Message transmission success rate and network function are quantity, network load and the resource selection strategy for relying on efficient resource.
In order to illustrate this point, Fig. 2 shows the expection success rates of scheduler task message when ten times of message of transmission per second as network load
Function.If success rate calculating ratio is more accurate, network can be correspondingly adjusted to improve network function.
It is necessary to provide the direct message transmission between a kind of mobile equipment in wireless network of high reliability.This is special
It is important vehicle to vehicle transmission in, here message transmission emphasis be information security.
Using the success rate of SA transmission as the par of PRBs in SA transmission, the biography of SA is made within every SA time
It is defeated will not be using the quantity of PRBs as fractional part.
Present invention is described below, is not limited to solve the problems, such as many or whole existing systems.
Summary of the invention
The present invention provides in a kind of wireless network between several mobile devices the directly appraisal procedure of message transmission success rate, packet
It includes: selecting first group of mobile device from several mobile devices in the network；It is set from first group of movement in the network
A mobile device in standby transmits at least one predefined test post to another mobile device；It decodes in each mobile device
Test post through being sent；The quantity of test post is successfully decoded in measurement；And it is commented according to the quantity of the MESSAGE SUCCESSFULLY DECODED
Estimate success rate.
The present invention also provides message transmission success rate assessment system direct between several mobile devices in a kind of wireless network, packets
Include: selecting module is arranged in each mobile device in the host node in the network or in several mobile devices, is used for
Selection selects first group of mobile device from several mobile devices in the network；Transmission module is arranged in a mobile device,
At least one predefined test post is used for transmission at least another mobile device in the network；Decoder module, setting are moving
In dynamic equipment, for decoding the test post；Measurement module is arranged in a mobile device, for measuring MESSAGE SUCCESSFULLY DECODED
Quantity；And evaluation module, it is arranged in the master node, for assessing success rate according to the quantity of the MESSAGE SUCCESSFULLY DECODED.
The present invention also provides the mobile devices in a kind of wireless network, comprising: selecting module, for selecting from the network
In several mobile devices in select first group of mobile device；Transmission module, be used for transmission at least one predefined test post to
At least another mobile device in the network；Decoder module, for decoding the test post；And connecting interface, for passing
The quantity of the defeated MESSAGE SUCCESSFULLY DECODED is to the host node in network.
The present invention also provides direct message transmission control methods between several mobile devices in a kind of wireless network, comprising: choosing
Several mobile devices are selected in host node or network to calculate averaging network load evaluation；It is assessed successfully by method described above
Rate, wherein the success rate represents the averaging network load；The selected host node or selected several movements are set
The standby assessment for calculating the averaging network load；According to the optimal repetition of direct communication between averaging network load evaluation mobile device
Factor；Resource is distributed according to optimal repeated factors；And by distribution resource from least one mobile device at least another shifting
Dynamic equipment transmits message.
When several mobile devices and the host node establish connection, the host node is for calculating the average net
Network load evaluation.
The host node is for assessing the optimization repeated factors and exporting the optimization repeated factors at least one
Mobile device.
The host node transmits the averaging network load to an at least mobile device, an at least mobile device according to
Repeated factors are optimized described in the averaging network load evaluation.
When several mobile devices do not establish connection with the host node, several mobile devices are for calculating
The averaging network load evaluation.
The method further includes calculating the first load value of an at least mobile device, first load value represents flat
Equal network load assessment；An at least mobile device receives the second load value, and second load value represents another mobile device
Averaging network load evaluation；An at least mobile device updates first load value according to second load value, to generate more
New load value；It is assessed according to the update load value and optimizes repeated factors.
The method further includes: the integer value of the mobile device is selected according to the optimization repeated factors；It is all
The optimization repeated factors that the host node as described in being approximately equal to by the average value of selection mobile device integer value calculates；And update tool
Have by the optimization repeated factors of the mobile device of selection integer value；Repeated factors point are wherein optimized according to the update
With resource.
The method also includes: several integers of several mobile devices are selected according to the optimization repeated factors
Value；The optimization repeated factors that the host node calculates such as are approximately equal to by the average value of selection mobile device integer value；And
Several optimization repeated factors are stored, the integer value of the mobile device of a selection defines an optimization repeated factors；And point
Different types of message is given with each optimization repeated factors, wherein optimizing repeated factors according to the update distributes resource.
High repeated factors are distributed to high priority message, and distribute low repeated factors to low prioritized messages.
To each mobile device, which comprises determine the minimum value, maximum value and the optimization repeated factors
Fractional part；The random selection maximum value or the minimum value, wherein the maximum value selected be equally likely to it is described most
Optimize the fractional part of repeated factors；And update the optimization repeated factors for having selective value；Wherein according to the update
It optimizes repeated factors and distributes resource.
Distribution resource includes the quantity for selecting the message to be sent according to the optimization repeated factors.
Distribution resource includes the quantity for selecting the message to be transmitted according to repeated factors are optimized.
The mobile device is mobile unit.The host node includes load side unit.The host node is mobile device.
The host node is base station.
The present invention also provides direct message transmission control methods between several mobile devices in a kind of wireless network, comprising: logical
Above method assessment success rate is crossed, wherein the success rate represents averaging network load；It calculates at least one mobile device
First load value, first load value represent the averaging network load evaluation；It is connect from least one mobile device
The second load value is received, second load value represents the averaging network load from least one other mobile device and comments
Estimate；In an at least mobile device, first load value is updated according to second load value, to generate update load
Value；It is assessed according to the update load value and optimizes repeated factors；Resource is distributed according to repeated factors are optimized；And it uses and divides
The resource matched, another mobile device transmission at least one mobile device in a network directly into the network disappear
Breath.
The present invention also provides message transmission control systems direct between several mobile devices in a kind of wireless network, comprising: choosing
Module is selected, is arranged in each mobile device in host node or several mobile devices in a network, is used for from the network
In several mobile devices in select first group of mobile device；Transmission module, setting in a mobile device, are used for transmission at least one
Predefined test post is at least another mobile device in the network；Decoder module is arranged in a mobile device, for solving
The code test post；Measurement module is arranged in a mobile device, for measuring the quantity that the message is successfully decoded；Assessment
Module, in the master node, the quantity that the message is successfully decoded for basis assesses success rate for setting；Average load calculates mould
Block is arranged in the host node or at least a mobile device, negative for calculating the averaging network according to the success rate
Lotus assessment；Repeated factors evaluation module is optimized, is arranged in an at least mobile device, for according to the averaging network load
The optimization repeated factors of direct communication between assessment mobile device；Resource distribution module is arranged in an at least mobile device, uses
According to optimization repeated factors distribution resource；And transmission module, it is arranged in an at least mobile device, for by dividing
Message is directly transmitted with resource to another mobile device.
The present invention provides the mobile device in a kind of wireless network, comprising: selecting module, if for from the network
First group of mobile device is selected in dry mobile device；Transmission module is used for transmission at least one predefined test post to the net
At least another mobile device in network；Decoder module, for decoding the test post；Measurement module is successfully solved for measuring
The quantity of the code message；Connecting interface is used for transmission the quantity of the MESSAGE SUCCESSFULLY DECODED to the host node in the network；
The connecting interface is used to receive averaging network load evaluation from host node；Repeated factors evaluation module is optimized to be used for according to shifting
The averaging network load evaluation of the direct communication of dynamic equipment room optimizes repeated factors；Resource distribution module, for according to optimal
Change factor distributes resource；And transmission module, for directly transmitting message from the mobile device in network to another by distributing resource
Outer mobile device.
The present invention also provides the mobile devices in a kind of wireless network, comprising: selecting module, for from the network
First group of mobile device is selected in several mobile devices；Transmission module is used for transmission at least one predefined test post to described
At least another mobile device in network；Decoder module, for decoding the test post；Measurement module, for measuring success
Decode the quantity of the message；Connecting interface is used for transmission the quantity of the MESSAGE SUCCESSFULLY DECODED to the main section in the network
Point；The connecting interface is used to receive averaging network load evaluation from host node；Average computation block, for according to described average
Network load calculates the first load value；Connecting interface represents the average net of an at least mobile device for receiving the second load value
Network load evaluation；Wherein, the average load computing module is further used for according to second load value with new described first
Load value is to generate update load value；Repeated factors evaluation module is optimized, for according to update load value assessment
Optimize repeated factors；Resource distribution module, for distributing resource according to the optimization repeated factors；And transmission module, it uses
In by distributing resource transmission message from the mobile device in the network to another mobile device.
The present invention also provides direct message transmission control methods between several mobile devices in a kind of wireless network, comprising: meter
Calculate the first load value at least one mobile device, first load value represent the averaging network load evaluation according to from
The signal that an at least mobile device in the network receives；The second load value is received from an at least mobile device, it is described
Second load value represents the averaging network load evaluation from least one other mobile device；It is mobile described at least one
In equipment, first load value is updated according to second load value, to generate update load value；According to the update load
Value assesses optimal repeated factors；Resource is distributed according to optimal repeated factors；And distributed resource is used, in a network at least
Another mobile device in one mobile device directly into the network transmits message.
The present invention also provides message transmission control systems direct between several mobile devices in a kind of wireless network, comprising: flat
Equal load calculation module is arranged in the host node or at least a mobile device, for calculating the averaging network load
Assessment；Repeated factors evaluation module is optimized, is arranged in an at least mobile device, for according to direct between the mobile device
The averaging network load evaluation of communication optimizes repeated factors；Resource distribution module is arranged in an at least mobile device, is used for
Resource is distributed according to the optimization repeated factors；And transmission module, it is arranged in an at least mobile device, for passing through distribution
Resource directly transmits message to another mobile device.
The present invention also provides the mobile devices in a kind of wireless network, comprising: connecting interface, for from wireless network
Host node receives averaging network load evaluation and/or average load computing module, for calculating the averaging network load evaluation；
Repeated factors evaluation module is optimized, optimizes and repeats for the averaging network load evaluation according to direct communication between mobile device
Factor；Resource distribution module, for distributing resource according to the optimization repeated factors；And transmission module, for passing through distribution
Resource directly transmits message from the mobile device in the network to another mobile device.
The present invention also provides the mobile devices in a kind of wireless network, comprising: average load computing module, for calculating the
One load value, first load value represent the averaging network load evaluation according to from least another movement in the network
The signal that equipment receives；Connecting interface, for receiving the second load value, second load value from least another mobile device
Represent the averaging network load evaluation；Wherein average load computing module is further used for being updated according to second load value
First load value, to generate update load value；Repeated factors evaluation module is optimized, for according to the update load value
Assessment optimizes repeated factors；Resource distribution module, for distributing resource according to the optimization factor；And transmission module, it uses
In by distributing resource transmission message from the mobile device in the network to another mobile device.
Detailed description of the invention
Fig. 1 is scheduler task (SA) time diagram；
Fig. 2 shows the expection success rate of network load；
Fig. 3 is schematic network structure；
Fig. 4 is the flow diagram of direct message transmission success rate appraisal procedure between mobile device；
Fig. 5 is the flow diagram of direct message transmission control method between mobile equipment in wireless network；
Fig. 6, which is mobile device, receives average load as function of load and fixed integer from base station or other host node
It is worth the schematic diagram as repeated factors；
Fig. 7 be when repeated factors have been determined according to the method for Fig. 4 and Fig. 5 mobile device from base station or other host node
Receive schematic diagram of the average load as function of load；And
Fig. 8 is schematic diagram of the mobile device from base station or other host node reception average load as function of load.
Specific embodiment
Exemplary description will be carried out to various embodiments of the present invention below.These embodiments represent general known to applicant
The feasible pattern that the present invention is practiced, but these examples are not unique implementation.Following description will show each
The step of function of embodiment and building and each embodiment of execution, is sequentially.However, same or equivalent function and sequence of steps
It can also be completed by other different embodiments.
The method that test post assessment message transmission success rate is sent between mobile device is described below.Needs are calculated as by this
Power assessments are accurate.For example, using this assessment to promote network performance in distribution resource.It is also possible, however, to use its
His mode assesses success rate.
Conflict when transmitting test post is, if test post number of collisions is too high, may have not to network performance
Benefit influences.In order to prevent this situation, the method selects an appropriate number of mobile device to transmit the test post.It is described
Host node in network executes selection course.Relatively, the mobile device may oneself processing selection course.When the movement
This mode is very when licensing to mobile device rather than host node when equipment not can connect to host node or by process works
It is useful.
Fig. 3 is the schematic diagram of the selection element of LTE network 1.The network 1 includes base station (eNB) 3, is connected by Uu link 6
Connect several mobile devices (UEs) 5.In addition to this, the mobile device 5 is also connected to other mobile device by sidelinks 8
5。
The base station 3 includes connecting interface 11, test post module 12, selecting module 2, success rate evaluation module 10 and money
Source distribution module 4.The connecting interface 11 is for base station 3 to be connect with each mobile device 5.The test post module 12 is used
In the parameter for defining test post and the test post.
The selecting module 2 from several mobile devices 5 in the network 1 for selecting first group of mobile device 5.Institute
It states first group of mobile device 5 and transmits the test post that the test post module 12 defines.
The information that the success rate evaluation module 10 is used to be received according to the connecting interface 11 calculates the movement and sets
Directly transmission success rate assessment between standby.The resource distribution module 4 is used for according to the success rate between the mobile device
Message transmission distribution resource.
The base station 3 also includes average load computing module 7 and optimization repeated factors evaluation module 9.These modules will
It is described in detail below.
Each mobile device 5, such as by taking mobile device UE1 as an example, including connecting interface 17, transmission module 23, selection mould
Block 18, decoder module 14, measurement module 16 and success rate evaluation module 20.The connecting interface 17 is used for the mobile device
5 connect with the base station 3.The connecting interface 17 is also used for be directly connected between mobile device 5.
The transmission module 23 is used to transmit test post to other mobile device 5 by scheduler task resource pool.Institute
Selecting module 18 is stated for allowing the mobile device 5 that itself is selected to transmit test post.The decoder module 14 is used for will
The test post received from other mobile device 5 is decoded.Test post is successfully decoded in the calculating of measurement module 16
Quantity.The quantity that the success rate evaluation module 20 is used to be successfully decoded the message according to is calculated as power assessments.
The mobile device 5 also includes average load computing module 13, optimizes repeated factors evaluation module 15, resource point
With module 21 and repeated factors selecting module 19.These modules will be described in detail hereinafter.
Fig. 4 is the flow diagram of direct message transmission success rate appraisal procedure between mobile device 5 in network 1.Step
400-404 selects mobile device to transmit test post, selects process by base station 3.Step 406-414, the movement are set
Standby 5 oneself manage selection process under the assistance of no base station 3.Step 416-426 is assessed average by test post
Success rate and distribution resource are to promote network performance.
Step 400, the base station 3 analyzes the shape of the mobile device 5 by the signal that the connecting interface 11 receives
State.The base station 3 judges the transmission load of each mobile device 5, i.e., the transmission energy of each mobile device 5 using the signal
Power.The base station 3 also judges position, direction and the speed of each mobile device 5.
Step 402, first group of mobile device 5 is selected by the selecting module 2.First group of mobile device 5
It is assigned the work for being used to transmit test post.Other mobile devices 5 in the network 1 cannot transmit test post；So
And these mobile devices 5 can receive test post from first group of mobile device 5.Each movement in described first group
Equipment 5 is selected as first group of mobile device in the given time.
It is selected mobile device 5 according to the transmission load of each mobile device 5 as first group of mobile device.For example, one
A mobile device 5 may have relatively high transmission load, therefore cannot be selected as first group of mobile device.
Select mobile device as first group of mobile device according to position, direction and/or the speed of each mobile device 5.
No matter base station 3 selects that characteristic, and the first group of mobile device selected by the network is used to ensure the biography between mobile device
Defeated mean allocation.5 limited amount of mobile device of selection, therefore the transmission of test post can generate advantageous shadow to network performance
It rings.
Step 404, the connecting interface 11 of the base station 3 is for sending test post configured transmission to each in first group
Mobile device 5.The mobile device 5 transmits test post according to the test post configured transmission.Those parameters are used to really
Only the test post of limited quantity is transmitted guarantor within the special time, therefore the test post transmitted can generate network performance
Beneficial Effect.The parameter of the determination is stored in the test post module 12.
The test post configured transmission includes transmission cycle, and the transmission cycle refers to that each mobile device sends test
The time interval of message.The test post configured transmission further includes transmission compensation, and the transmission compensation refers to that mobile device is sent out
Send the time bias of test post.
First group of mobile device 5 is used for transmission a series of test post of the preset quantity in test posts.At it
In his embodiment, first group of mobile device is by scheduled transmission rate for randomly transmitting the test post.
Step 406-414, the method for selecting mobile device 5 is that the mobile device 5 manages under the assistance of no base station 3
Selection process.Step 406, the mobile device 5 is arbitrarily selected to transmit test post by the transmission module 23.The movement
Equipment 5 transmits test post in being spaced at any time.Other mobile device 5 in the network 1 receives those tests and disappears
Breath.
Step 408, each mobile device 5 measures the quantity for receiving test post within the scheduler task time.By every
The measurement module 16 in one mobile device 5 executes the process.Then, step 410, the selecting module 18 is by the number
Amount is compared with threshold value.
If the quantity that mobile device 5 receives test post is less than the threshold value, 414 are entered step, wherein movement is set
Standby 5 by the selecting modules 18 of itself select oneself as first group of mobile device.Conversely, entering step 412, wherein described
Mobile device 5 do not select itself as first group of mobile device.In step 402, each mobile device 5 in the given time by
It is selected as first group of mobile device.
A certain number of mobile devices 5 are allowed to transmit under the assistance of no base station 3 for test post.The threshold value is used
In the expectation distribution for controlling transmission mobile equipment 5 in the network 1.
Selftest message transmission parameter is arranged in each mobile device 5.Optionally, each mobile device 5 is in every SA
It is interior to determine to transmit or do not transmit test post.
Step 416-426 is to calculate message transmission average success rate assessment by first group of transmission of mobile device 5 and survey
The method for trying message.Resource is distributed in order to optimize the network performance according to the average success rate.
Step 416, each mobile device 5 in the first set is transmitted a series of pre- by their respective transmission modules 23
Define test post.The transmission test post is corresponding with the test post parameter that the base station 3 receives.Optionally, often
The test post of the corresponding mobile device setting of one mobile device 5 transmits test post.These set the movement of " outside range "
Standby 5 is particularly useful.
Each test post includes transmitting the mobile device information shown in test post.For example, each test post packet
Include the mobile device that identification code indicates the transmission.In addition to this, each test post further includes transmission mobile equipment and receives
The distance between mobile device information.For example, the position that each test post includes transmission mobile equipment is set relative to movement is received
Standby position.
Send the test post according to certain sequence, wherein each test post include all informations sequence and
Each single message index.It is described to index the sequence for referring to fc-specific test FC message in test post sequence.
Pond, which is controlled, according to scheduler task sends the test post.In the present embodiment, each test post is different from it
His scheduler task message.In other embodiments, normal consistency task message includes each test post.Each test post
It is identified including test post, such as test post cognizance code.The mobile device 5 can filter the survey from other message
Try message.
Other mobile devices when the mobile device 5 in described first group starts to transmit test post, in the network 1
5 will receive these test posts.The reception mobile device 5 may be in mobile device or the network 1 in first group
Other mobile devices 5.Step 420, each mobile device 5 for receiving test post decodes institute by the decoder module 14 of itself
State the test post received.
Step 422, each mobile device 5 measures the quantity that test post is successfully decoded by measurement module 16.The survey
Amount module 16 measures the overall quantity of MESSAGE SUCCESSFULLY DECODED in the given time.In the present embodiment, using the SA time.
Step 422, the quantity of transmission success decoding test post gives the base station 3.This information is potentially based on the shifting
The geographical location information of dynamic equipment 5.
It includes the quantity that test post is successfully decoded that each mobile device 5, which is sent in the report of the base station 3,.For
It avoids the base station 3 due to reporting communication overload, periodically sends the report.The report, which shows to be successfully decoded, to disappear
The quantity of breath and the ratio that message is sent from first group of mobile device 5.The report further includes each transmission mobile equipment 5
To the distance for receiving mobile device 5.
In order to limit the information content for being sent to the base station 3, the mobile device 5 only transmits the mobile device number of selection
The result of amount.The limitation of mobile device 5 transmits the result of immediate transmission mobile equipment 5 or based on the spy for having success rate
Determine the result of threshold value.
Step 424, the base station 3 receives successfully decoded disappear from the mobile device 5 by the connecting interface 17
The quantity of breath.Then, the success rate evaluation module 10 is according to the information evaluation average success rate.Wherein, described successfully to solve
The quantity of code message is received together with the geography information of the mobile device 5.The base station 3 generates flat in each geographical location
Equal success rate assessment.The success rate evaluation module 10 determines from the quantity of the MESSAGE SUCCESSFULLY DECODED average by searching for table
Success rate.
Step 426, resource is distributed according to the average success rate by the resource distribution module 4 in the base station 3.Therefore
The resource distribution module 4 distributes resource to promote the average success rate, and then promotes the performance of the network 1.
Distribution resource is to be promoted or reduced for the base station 3 to distribute to described in the mobile device 5 on one side
Message transmission rate.For example, increasing the message transmission rate if the average success rate is high to promote network performance.Instead
It, if the average success rate is low, the message transmission rate will be reduced.
The another aspect for promoting network performance is by the base station 3 rather than by being directly connected between mobile device 5
The transmission of direct message is changed to UU connection.This side if the average success rate of the message transmission between mobile device 5 is low
Formula is proper., whereas if the average success rate is low, then increase the message directly transmitted between mobile device 5.
In other embodiments, the base station 3 controls the mobile device 5 and increases message transmission quantity or transmit message
Stock number, to promote success rate.Optionally, the base station 3, which controls the mobile device 5, reduces those variables to reduce success
Rate.
In other embodiments, the resource distribution module 4 may update pond and divide to promote network performance.In addition, root
Network performance is promoted by system standard algorithm according to the success rate.
In other embodiments, the success rate evaluation module 20 of each mobile device 5 is received according to the mobile device 5
Test post is successfully decoded quantity assessment success rate.Then, the mobile device 5 passes through the distribution money of resource distribution module 21
Source.For example above-mentioned description to base station 3 of resource allocation.
In embodiment described above, test post is sent by scheduler task pond.Judged by these test posts
The average success rate in the scheduler task pond.Message is sent using the method for foregoing description by message pool.However, because message
Pond includes a large amount of PRBs, and it is more complicated to obtain average success rate in this way.Therefore, it is difficult to detect punching by message pool
It dashes forward and partly overlaps.
In method described above, the success rate assessment in the scheduler task pond is assessed.This success rate refers to described
The success rate of message pool and resource is distributed accordingly.
One selectable success rate assessment mode is using vacancy SA resource as the instruction of success rate.It is optional at this
In selection method, the mobile device 5 identifies vacancy SA resource by incuding the energy of each resource.The energy detected
It is compared with preset threshold, wherein be vacancy by instruction specific resources when the energy level detected is lower than the threshold value
's.However, the problem of this method, is that detected energy level is relatively difficult, relative to the measurement success in foregoing description method
It is lower to decode accuracy for the quantity of message.
Fig. 5 is the flow diagram of direct message transmission control method between mobile device 5 in the network 1.The method
Based on assessment success rate control message transmission；However, embodiment as explained above, the other modes for controlling network operation are to comment
Estimate success rate.
Step 100, the averaging network load is assessed by the average load computing module 7 in the base station 3.Therefore logical
Method described above is crossed to assess success ratio values, to assess the averaging network load.
Step 120, the optimization repeated factors evaluation module 9 is optimized according to the averaging network carry calculation and is repeated
The assessment of factor.The repeated factors that optimize refer to how the mobile device 5 transmits the time quantity of message by display
Or the resource quantity of message is transmitted to distribute resource.
Specifically, message repeats and resource quantity is integer.However, the optimization weight calculated in the step 120
Multifactor is non-integer.For example, calculating the optimization repeated factors most by the optimization repeated factors evaluation module
A few decimal place.
Step 140, " mode 1 " or " mode 2 " is selected by the selecting module of the base station 3 and/or mobile device 5.?
In the step, whether judgement is built between the base station 3 and a specific mobile device 5 by the connecting interface 11,17
Vertical connection.If the mobile device 5, by the UU connection 6 connection base station 3, the mobile device 5 is from the base
It stands and 3 receives the optimization repeated factors, therefore the mobile device 5 receives network load instruction from the base station 3.This
In the case of, the mobile device 5 is in " in range ".
Step 140, it when establishing connection between the base station 3 and the mobile device 5, selects " mode 1 ".Optionally,
Even if establishing connection, " mode 2 " also may be selected, the mobile device 5 is authorized to assess averaging network load and distribution resource at this time.
If the mobile device 5 is connect not over the UU connection 6 with the base station 3, the mobile device 5 cannot
The optimization repeated factors are received from the base station 3, therefore the mobile device 5 cannot receive network from the base station 3 and bear
Lotus instruction.In this case, the mobile device 5 is in " outside range ".In this case, " mode 2 " is selected.
If selection " mode 1 " simultaneously enters step 160, wherein institute is transmitted by the connecting interface 11,17 in the base station 3
It states and optimizes repeated factors to the mobile device 5.Step 260, by optimizing repeated factors evaluation module 15 with described
Storage device is connected so that the optimization repeated factors to be stored in the mobile device 5.
As described above, the mobile device 5 distributes resource according to the integer value of the repeated factors.For example, described
Mobile device 5 will not repetition message 2.4 times or transmission message be more than 1.3 times of resources because repeating and resource is to separate.Cause
This, the mobile device 5 needs to select the integer value for optimizing repeated factors.
Step 280, the mobile device 5 is by the repeated factors selecting module 19 according to the optimization repeated factors
(m*) integer value of non integer value selection repeated factors (m).For this, the mobile device 5 determines the minimum value of m*, m*
Maximum value and its fractional part.The mobile device 5 determines minimum value to the lower integer of maximum by mapping m*.The shifting
Dynamic equipment 5 determines maximum value by integer on mapping m* to minimum.The mobile device 5 subtracts minimum value by m* to determine
Fractional part.For example, 5 calculated minimum of mobile device is 2, and maximum value is 3 and fractional part is if m* is 2.4
0.4。
In next step, what the repeated factors selecting module 19 was random selects minimum value or maximum value as repeated factors
(m).The maximum value of the m* of selection is equally likely to the fractional part of m*.If not selecting the maximum value, the minimum of m is selected
Value replaces.For example, selection m is equal to 3 by the mobile device 5, and the time is 40% and the mobile device 5 if m* is 2.4
Selection m is equal to 2, the time 60%.Therefore, described when applying this algorithm in the mobile device 5 communicated between each other
The result that mobile device 5 the includes repeated factors that are averaged will be equal to the optimization repeated factors m* (in this 2.4 example).
If the minimum value that the mobile device 5 randomly chooses m* is equal to m, wherein the minimum value of the m* selected is equally likely to
1 subtracts fractional part, selects the maximum value of m that will generate identical result with no selection minimum value.
Such as the code of execution step 280 is shown as described below:
Wherein, sat is the subset (size S) of the size of side link control pond m in time t.In addition to this, f1 (x；m')
With f2 (x；M ') be two one-dimensional average m ' reversible cumulative probability distribution.
The load (L) is received as inputting, and two parameters Lmin and Lmax are (close with probability for generating stochastic variable
Spend function f1 or f2), the stochastic variable is for selecting repeated factors.The stochastic variable can carry any nonnegative value.Wherein
The corresponding deletion of value or deletion information, the value greater than 1 less than 1 correspond to duplicate message.
Such as:
And
Step 300, the mobile device is transmission point according to the selective value of repeated factors (m) by resource distribution module 21
With resource.It therefore, will be according to repeated factors repetition when a mobile device 5 is transferred to another mobile device 5
Message is multiple.For example, the mobile device 5 will send the message twice if m is equal to 2, and if m is equal to 1, the shifting
Dynamic equipment will send the message only once.
In other embodiments, the mobile device 5 is to transmit the message to select number of resources according to the repeated factors
Amount.For example, the mobile device 5 is to send the message to select two resources if m is equal to 2, and if m is equal to 1, the shifting
Dynamic equipment 5 is to send the message to select only one resource.
Step 320, the mobile device 5 is transmitted consistent with the resource allocation in step 300 by the transmission module 23
Message.
Step 140, " mode 2 " is selected, method enters step 180.As previously described, if the base station 3 and described
Connection is not established between mobile device 5, then selects " mode 2 ".For example, the work of assessment averaging network load granted it is described
" mode 2 " also may be selected when mobile device 5.
Step 180, the mobile device 5 generates the averaging network load by the average load computing module 13
(L) the first load value of the first assessment.Therefore success ratio values are assessed by the method for foregoing description to be also used for assessing described put down
Equal network load.
Step 200, the mobile device 5 is described to assess from other mobile devices 5 reception load value in the network
The averaging network load (L) that other mobile devices 5 calculate in network.Those of each calculating of mobile device 5 assessment is based respectively on
The special induction force of network of each mobile device 5 is identical as the description in step 180.
The mobile device 5 shares their assessment between each other, and in a step 220, each mobile device 5 passes through institute
It states average load computing module 13 and updates their load value, to consider other assessments that the averaging network load receives.
Step 240, each mobile device 5 by the optimization repeated factors evaluation module 15 calculate optimize repeat because
Plain (m*).The calculating is the assessment of the update based on the averaging network load.This optimizes repeated factors and is used in
In steps described above 260 to 320.
In short, the method for previous step 100-320 description allow the mobile device 5 assess the averaging network load and
According to the natural resources distribution resource that the average load is in the network 1.This will be helpful to reduce conflict and maximize
The average success rate.
In " mode 1 ", the base station 3 provides average load assessment, one mobile device 5 of duty ratio of the network 1
It is readily appreciated that.Average load that the mobile device 5 is provided according to the base station 3 assessment transmission with resource allocation is consistent disappears
Breath.
In " mode 2 ", a mobile device 5 is by the control resource pool according to received from other mobile devices 5
Averaging network load described in message evaluation.In addition to this, a mobile device 5 is linked by the PC5 and side link controls
Information shares the assessment of the averaging network load of itself with other mobile devices 5.Therefore, the mobile device 5 by each other it
Between communication rather than the value that averaging network load is gradually reduced accurately is assessed by base station 3.This represent distribution resources
Distribution method.
In method described above, connection is established with the mobile device 5 to provide the optimization weight in the base station 3
Multifactor.Selectable, a remote equipment, such as a load side unit establish connection with the mobile device 5 to provide
Optimize repeated factors.In other embodiments, any mobile device can be supplied to other mobile devices 5 optimize repeat because
Element.It in a further embodiment, can be with a mobile device 5 in multiple vehicles of identical speed traveling on expressway
Other mobile device 5 establishes connection to provide the optimization repeated factors in the region.In fact, any " host node ", all
If base station 3 or another type of base station are that the mobile device 5 provides optimization repeated factors, as long as " host node " has
Enough broadband perceptions of network, to guarantee accurate averaging network load.
In the method, it is assumed that the mobile device 5 establishes one within a certain period of time and individually optimizes repeated factors.
It however, it is also possible to which each mobile device 5 establishes multiple repeated factors, and is that the movement is set according to different types of message
The different repeated factors of standby 5 distribution.Disappear for example, the mobile device 5 can distribute a high repeated factors to high priority
It ceases and distributes low repeated factors to low priority message.
Fig. 6 is the case where average success rate is as function of load schematic diagram.The mobile device 5 from the base station 3 or
Other host nodes receive average load, and a fixed integer value is used for the repeated factors.
Two concrete instances have been presented in Fig. 6 it, one is m=1 that solid line indicates, the other is the m=that dotted line indicates
2, a theoretical example is as shown in intensive dotted line.The example of the theory is the maximum value conduct of the theoretical average success rate
Function of load.
The solid line m=1 shows average success rate with the situation of change of load, and wherein repeated factors (m) are equal to 1.It can
To find out, work as m=1, the average success rate is bigger by 0.4 than the theoretical maximum of load.However, when load is less than 0.4
Performance is suboptimum.
The solid line m=2 shows average success rate with the situation of change of load, and wherein repeated factors (m) are equal to 2.It can
To find out, work as m=2, the average success rate is smaller by 0.4 than the theoretical maximum of load.However, when load is greater than 0.4
Performance is suboptimum.
Fig. 7 is the case where average success rate is as function of load schematic diagram.Wherein, the mobile device 5 is from the base station 3
Or other host nodes receive average load, wherein the repeated factors are determined according to method described above.It is described
Intensive dotted line is the theoretical maximum of average success rate.Wherein it can be seen that the solid line is described using method described above
Average success rate load performance.It can be seen that executing the method can achieve the theory close to the average success rate
Maximum value.
Fig. 8 is the case where average success rate is as function of load schematic diagram, wherein mobile device decision is described average
Load and repeated factors.
The solid line m=1 shows the average success rate with the variation of load, wherein the repeated factors (m) are equal to
1.The solid line m=2 shows the average success rate with the variation of load, wherein the repeated factors (m) are equal to 2.It is described
Intensive dotted line is the theoretical maximum of average success rate as function of load.When the method for execution " mode 2 ", the solid line is aobvious
Show the average success rate how with load variations.With reference to Fig. 7 and Fig. 8, it can be seen that can be selected by method described above
" mode 1 " and " mode 2 " is selected to reach theoretical and optimize performance.
Need to consider two limitations when executing above method.First is the limiting mobile device 5 in identical subframe
Common physical resource block is transmitted, to reduce the peak-to-average power ratio.According to existing 8 sons based on side link control pond transmission
Frame or more link control message, this limitation not will lead to performance degradation.
Second limitation is the half-duplex for limiting the mobile device 5.In other words, the mobile device 5
Other subframes cannot be received when transmitting certain subframes in same subframe.Opposite, mobile device 5 can connect in no transmission subframe
Receive any subframe.Mobile device 5 is divided into two groups by this limitation: the TX group and non-TX group.The movement in TX group is set
Standby 5 transmit PC5 message within the side link control time, however the mobile device in non-TX group cannot.
Because the mobile device 5 in TX group has high load, for example, load is greater than 1, performance degradation is small and is equal to (1-
Constant 1/Ssf), wherein Ssf is the size of the resource pool in subframe.Because of high load, moved in the method
Dynamic equipment 5 obtains average load from the base station or other host nodes and oneself assesses the average load, working principle (
In terms of achievement, justice and power) it with the mobile device 5 in the mobile device 5 and the non-TX group in the TX group is identical.
The case where underload, for example, situation may be more complicated because load is less than 1.Due to half-duplex performance degradation ratio
It is more serious, the optimization repeated factors (m of the TX groupTX) and the non-TX group optimization repeated factors (mnon-TX) deviate from, because
This, cannot meet simultaneously.
It is unfavorable for the m using the TX group when load is less than 0.3non-TX, and it is conducive to the m using the non-TX groupTX.Cause
This, can use m within this rangeTXAs reference.The performance degradation of the non-TX group is than more serious in high-load range.So
And due to mTXThe performance of the TX group is enjoyed, this repeated factors also can be as the reference of entire scope.The non-TX group performance
Sacrifice be conducive to the TX group.
If PARR is a problem, the mobile device 5 is used for the single PRB of each sub-frame transmission.Because of load
Less than 1, it is proposed that sacrifice the performance of the non-TX group of the mobile device 5 to be conducive to non-TX group, it means that duplicate quantity ratio
It is less.If PAPR is not a problem, i.e. mobile device can transmit multiple PRBs in same subframe, then the TX group and
The optimization of the non-TX group can meet simultaneously.
Those skilled in the art can learn to be executed by the combination of computer software, hardware or software and hardware
Method in above-described embodiment.
Only providing method by way of example.The present invention is not limited to specific steps shown in the accompanying drawings and description,
But includes the steps that other proper steps or connected in appropriate sequence.Part in the method can be parallel execution.
The term " user equipment " refers to the arbitrary equipment with processing and communication function, as long as it can execute the present invention
Method as described in the examples.Those skilled in the art can learn that the processing and communication function can be set in many
Different equipment, thus the term " user equipment " include mobile phone, personal digital assistant, PC and other set
It is standby.
Method described above can also apply to other other wireless technologys and have no effect on desired effect.
It will be understood by those skilled in the art that many value ranges or device value that provide can be extended or select and not influence
Desired effect.
Beneficial effect described above is suitable for one embodiment or multiple embodiments.The embodiment is not limited to solve
Many or all technical problems are not limited to have many or all beneficial effects.
"one" refers to one or more.Term " includes " means to include method and step or element, but such as
This step of or element do not include the steps that exclusive list and method or device may include certain other or element.
Step described in method is executed according to suitable sequence, or is performed simultaneously.In addition to this, from the method
Delete the range that single step has no effect on entire technical solution.Many aspects in example described above may be with other examples
Many aspects of son are combined to form other example, but have no effect on technical effect.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (26)
1. direct message transmission success rate appraisal procedure between a kind of mobile equipment in wireless network, comprising:
First group of mobile device is selected from several mobile devices in network；
At least one predefined test is transmitted to another from one in first group of mobile device in the network
Message；
The test post is decoded after the test post is sent to the mobile device；
Obtain the quantity that the test post is successfully decoded；And
Success rate is assessed according to the quantity that the test post is successfully decoded.
2. according to the method described in claim 1, further comprising:
Message is directly transmitted between mobile device according to success rate to distribute resource, to optimize success rate.
3. according to the method described in claim 2, wherein, distribution resource includes at least one:
Increase or decrease between mobile device the directly transmission rate of message transmission；
Pond is updated to divide；
By base station rather than by being directly connected to transmission message between mobile device；
Increase or decrease the quantity of message transmission；And
Increase or decrease the quantity of message transport resources.
4. according to method described in any of the above-described claim, wherein the host node in the network selects first group of shifting
Dynamic equipment.
5. according to the method described in claim 4, further comprising:
It is arranged and selects configured transmission by the host node；And
The configured transmission is transmitted to first group of mobile device.
6. method according to claim 4 or 5, wherein the host node is special according at least one of the mobile device
Sign selects first group of mobile device.
7. according to the method described in claim 6, wherein, the feature is from the transmission of the mobile device, positioning, direction and speed
At least one is chosen in degree ability.
8. according to method described in any of the above-described claim, wherein the mobile device is vehicle mobile equipment.
9. method according to claim 4, wherein the host node includes load side unit.
10. method according to claim 4, wherein the host node is mobile device.
11. method according to claim 4, wherein the host node is base station.
12. method according to claim 1 to 3, wherein several mobile devices in the network select institute
State first group of mobile device.
13. according to the method for claim 12, wherein select first group of mobile device logical in several mobile devices
It crosses:
Predefined test post is transmitted from several mobile devices in network；
The test post is received in several mobile devices in the network；
Calculate the quantity of the test post received in each mobile device in preset time；
The test post quantity is compared with threshold value；And
When the test post quantity is less than the threshold value, using the mobile device as first group of mobile device.
14. according to method described in any of the above-described claim, wherein the predefined test post includes at least one:
The position of the mobile device transmission；
The mark of the transmission mobile equipment；
The sum of test post quantity in a series of test posts from transmission mobile equipment；And
The index of the sequence of test post in test post sequence.
15. further comprising according to method described in any of the above-described claim:
The quantity of MESSAGE SUCCESSFULLY DECODED is measured in each mobile device；
The quantity of the MESSAGE SUCCESSFULLY DECODED is transmitted to host node；And
Success rate is assessed in host node according to the quantity of MESSAGE SUCCESSFULLY DECODED.
16. according to the method for claim 15, wherein the quantity of the MESSAGE SUCCESSFULLY DECODED and the transmission mobile equipment
Corresponding geography information is related；And
The method further includes:
The success rate of geographic area is judged on the host node.
17. according to method described in any of the above-described claim, wherein the test post is included in scheduling assignment messages,
To indicate parameter relevant to subsequent transmission.
18. according to method described in any of the above-described claim, wherein each mobile device will be made by selection within a preset time
For first group of mobile device.
19. according to method described in any of the above-described claim, wherein the test post includes test post identification.
20. the control method that immediate data is transmitted between several mobile devices in a kind of wireless network, comprising:
Several mobile devices calculate averaging network load evaluation in selection host node or network；
Success rate is assessed by method described in the claims 1 to 19, wherein the success rate represents the averaging network
Load；
The selected host node or selected several mobile devices calculate the assessment of the averaging network load；
According to the optimal repeated factors of direct communication between averaging network load evaluation mobile device；
Resource is distributed according to optimal repeated factors；And
Message is transmitted from least one mobile device at least another mobile device by distributing resource.
21. the control method that immediate data is transmitted between several mobile devices in a kind of wireless network, comprising:
Success rate is assessed by any one of the claims 1 to 20, wherein the success rate represents the averaging network
Load；
The first load value of at least one mobile device is calculated, first load value represents commenting for the averaging network load
Estimate；
The second load value is received in an at least mobile device, second load value, which represents, comes from least one other shifting
The assessment of the averaging network load of dynamic equipment；
In at least one described mobile device, first load value is updated according to second load value, is updated with generating
Load value；
Optimal repeated factors are assessed according to the update load value；
Resource is distributed according to optimal repeated factors；And
Distributed resource is used, another movement at least one mobile device in a network directly into the network
Equipment transmits message.
22. the system that success rate is assessed in direct message transmission between several mobile devices in a kind of wireless network, comprising:
Selecting module is arranged in each mobile device in host node or several mobile devices in a network, is used for from institute
It states and selects first group of mobile device in several mobile devices in network；
Transmission module, setting in a mobile device, be used for transmission at least one predefined test post in the network at least
Another mobile device；
Decoder module is arranged in a mobile device, for decoding the test post；
Measurement module is arranged in a mobile device, for measuring the quantity that the message is successfully decoded；And
Evaluation module, in the master node, the quantity for the message to be successfully decoded according to assesses success rate for setting.
23. the mobile device in a kind of wireless network, comprising:
Selecting module, for selecting first group of mobile device from several mobile devices of the network；
Transmission module is used for transmission at least one predefined test post at least another mobile device in the network；
Decoder module, for decoding the test post；
Measurement module, for measuring the quantity that the message is successfully decoded；And
Connecting interface, for sending the host node in network for the quantity of the message being successfully decoded.
24. a kind of method as shown in drawings.
25. a kind of system as shown in drawings.
26. a kind of mobile device as shown in drawings.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1602051.3A GB2547019B (en) | 2016-02-04 | 2016-02-04 | Estimating success rate of direct data transmissions between mobile devices in a wireless network |
| GB1602051.3 | 2016-02-04 | ||
| PCT/CN2017/071249 WO2017133433A1 (en) | 2016-02-04 | 2017-01-16 | Estimating success rate of direct data transmissions between mobile devices in wireless network |
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| CN109792616A true CN109792616A (en) | 2019-05-21 |
| CN109792616B CN109792616B (en) | 2022-05-06 |
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|---|---|
| CN (1) | CN109792616B (en) |
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| Publication number | Publication date |
|---|---|
| GB2547019A (en) | 2017-08-09 |
| WO2017133433A1 (en) | 2017-08-10 |
| CN109792616B (en) | 2022-05-06 |
| GB2547019B (en) | 2018-05-16 |
| GB201602051D0 (en) | 2016-03-23 |
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