CN107734649A - A kind of resource selection method and device of V2X communications - Google Patents
A kind of resource selection method and device of V2X communications Download PDFInfo
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- CN107734649A CN107734649A CN201610665882.2A CN201610665882A CN107734649A CN 107734649 A CN107734649 A CN 107734649A CN 201610665882 A CN201610665882 A CN 201610665882A CN 107734649 A CN107734649 A CN 107734649A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides the resource selection method and device of a kind of car networking V2X communications, this method includes：UE carries out signal detection and/or Energy-aware in predetermined resource set；UE determines the resource or resource collection for sending wireless signal according to the result of signal detection and/or Energy-aware；Resource determined by UE uses selects resource to send wireless signal from identified resource collection.In the present invention, above-mentioned steps are passed through so that UE is while the reliability of V2P communications and V2X communications is kept, it is possible to increase UE power consumption efficiency, reaches power saving purpose.
Description
Technical field
The present invention relates to the communications field, in particular to the resource selection method and device of a kind of V2X communications.
Background technology
Car networking refers to the communication protocol and Data Exchange Standard according to agreement, in car-X (X：Car, road, pedestrian and interconnection
Net etc.) between, communicate wirelessly the big grid exchanged with information.It can be travelled vehicle by car networking communication
Safety, improve traffic efficiency and facilitated or entertainment information.Classify from the object of radio communication, car networking communication includes
Three kinds of different types：Communicate (Vehicle to Vehicle, referred to as V2V) between vehicle and vehicle, vehicle and roadside equipment
Between communicate (Vehicle to Infrastructure, abbreviation V2I), and (the Vehicle to that communicated between vehicle and pedestrian
Pedestrian, abbreviation V2P), it is referred to as V2X communications.
In 3GPP (3rd Generation Partnership Project) tissue based on LTE (Long Term
Evolution, Long Term Evolution) V2X Communication Studies in, based between user equipment (User Equipment, referred to as UE)
The V2X communication means of sidelink (Sidelink) be one of mode of V2X standard implementations, i.e., business datum is without base station
With the forwarding of core net, directly by source user equipment by air interface transmission to target UE, as shown in figure 1, this V2X leads to
Letter mode abbreviation PC5-based V2X communicate.
V2P communications belong to V2X communication categories, including pedestrian's user equipment (Pedestrian UE, abbreviation P-UE) sends letter
Number, vehicle user equipment (Vehicle UE, abbreviation V-UE) is received, and/or V-UE sends signal, and P-UE is received, and V2P is mainly
Protection pedestrian or vulnerable object avoid traffic accident injury or potential danger.
In V2X communication systems, vehicle can be V-UE continued powers, and power saving is not crucial requirement for V-UE.
And in V2P communication systems, as P-UE handheld terminal, usually not external power source persistently supplies on the move
Electricity, in order that P-UE can working time long enough, in V2P communication systems, not only to consider V2P communication high reliability,
It is also contemplated that P-UE Save power consumption.
The content of the invention
It is whole at least to solve user in V2X communications the invention provides the resource selection method and device of a kind of V2X communications
The problem of end power supply is limited.
According to an aspect of the invention, there is provided a kind of resource selection method of car networking V2X communications, including：UE exists
Signal detection and/or Energy-aware are carried out in predetermined resource set；UE determines according to signal detection and/or the result of Energy-aware
For sending the resource or resource collection of wireless signal；Resource determined by UE uses selects from identified resource collection
Resource sends wireless signal.
Preferably, predetermined resource set includes at least one of：The set of first kind predetermined resource, the second class predetermined resource
Set, the 3rd class predetermined resource set；Wherein,
The set of first kind predetermined resource comprises at least the optional resource collection of the first kind, and the optional resource collection of the first kind includes hair
Sending the subset of resource pool or transmission resource pool, (transmission resource pool or its subset herein can be understood as the money for sending signal
Source pond or its subset), do not include receiving resource pool or receive the subset of resource pool (reception resource pool herein or its subset can be with
It is interpreted as the resource pool of reception signal or its subset)；
Second class predetermined resource set comprises at least the optional resource collection of the second class, and the optional resource collection of the second class includes hair
Send the subset of resource pool and/or receive the subset of resource pool；
3rd class predetermined resource set comprises at least one or one group of reference resources or resource unit, or including at least one
Individual or multiple predetermined resource subsets, predetermined resource subset comprise at least one or one group of reference resources or resource unit；Wherein, join
It is identical with the UE size with resource or resource unit to examine resource or resource unit, is referred in the skew of time domain for positive integer
In the cycle, do not offset in frequency domain, be the resource or resource list that UE has been used to send wireless signal with resource or resource unit
Member, reference cycle are that other UE outside UE send the cycle of wireless signal or default periodic quantity.
Preferably, the optional resource collection of the first kind and/or the optional resource collection of the second class are by network side configuration and/or in advance
Configuration determines.
Preferably, signal detection includes at least one of：To reception signal denoising and/or interference, to reception signal
Decoding, demodulating received signal；Energy-aware includes：The energy of measurement signal and/or the power of measurement signal.
Preferably, signal detection and/or the result of Energy-aware include at least one of：
Resource is idle, represents to be not received by wireless signal in corresponding resource；Or it is not detected by wireless signal energy
The wireless energy signal measured or perceived is less than decision threshold；
Resource is hurried, and represents to receive wireless signal in corresponding resource, including reception signal is decoded and/or is demodulated to
Work(, or, perceive wireless energy signal and meet or exceed decision threshold；
The idle or busy grade of resource, represent that grade point corresponds to the degree of strength of reception signal energy in resource.
Preferably, UE carries out signal detection and/or Energy-aware in predetermined resource set, including：
UE is in first kind predetermined resource set, or in the second predetermined resource set, or in the 3rd class predetermined resource collection
In conjunction, one or many signal detections and/or Energy-aware are carried out, according to one or many signal detections and/or Energy-aware
Obtain signal detection and/or the result of Energy-aware.
Preferably, UE carries out signal detection and/or Energy-aware in predetermined resource set, including：
UE carries out signal energy perception in perceived window, wherein, the size of perceived window is no more than least resource list in time domain
The time of member, a perceived window is at least intactly included in the time of each resource unit；Using the sensing results of perceived window as
Sensing results in the time of corresponding resource unit.
Preferably, UE according to the signal detection in first kind predetermined resource set, or the second class predetermined resource set and/
Or the result of Energy-aware determines the resource or resource collection for sending wireless signal, including：
When signal detection and/or the result of Energy-aware are resource space idle, it is determined that corresponding resource or resource unit category
In resource collection, or determine that corresponding resource or resource unit are used to send wireless signal；Or according to resource it is idle or busy etc.
The determine the probability of level value mapping corresponds to resource or resource unit belongs to resource collection or the probability for sending wireless signal.
Preferably, UE determines according to the result for the signal detection and/or Energy-aware closed in the 3rd class predetermined resource collection
For sending the resource or resource collection of wireless signal, including at least one of：
The result of a UE signal detection of progress and/or Energy-aware, signal detection and/or Energy-aware is resource space
It is not busy；Or UE carries out multiple signal detection and/or Energy-aware, the result of signal detection and/or Energy-aware is resource space
It is not busy；Or UE carries out multiple signal detection and/or Energy-aware, the signal detection of part number and/or the result of Energy-aware
It is idle for resource, it can be determined that according to result and use resource or resource unit that signal conflict is not present；Then selection is with nearest one
Individual be the resource for sending wireless signal with the resource after sending the cycle or resource unit on the basis of resource or resource unit, is offset
Or resource unit or belong to resource collection, wherein, it is the cycle that UE sends wireless signal to send the cycle, including positive integer refers to
Cycle；
The result of a UE signal detection of progress and/or Energy-aware, signal detection and/or Energy-aware is hurried for resource；
Or UE carries out multiple signal detection and/or Energy-aware, the result of signal detection and/or Energy-aware is that resource is hurried；Or
Person, UE carry out multiple signal detection and/or Energy-aware, and the signal detection of part number and/or the result of Energy-aware are money
Source is hurried, and can be determined that signal conflict be present with resource or resource unit according to result；Then determine to correspond to nearest one
On the basis of resource or resource unit, resource or resource unit after the skew transmission cycle, which are not used in, to be sent wireless signal or does not belong to
In resource collection, wherein, send the cycle that the cycle is UE transmission wireless signals, including positive integer reference cycle；
UE determines resource or resource collection according to the grade point that resource is idle or does, and is mapped to not according to different grade points
Same probability, it is determined that by nearest one with the resource or resource unit after the skew transmission cycle on the basis of resource or resource unit
To send the probability of the resource of wireless signal or resource unit, or the probability for sending wireless signal is not used in, or resource or resource
Unit belongs to or is not belonging to the probability of resource collection, wherein, send the cycle that the cycle is UE transmission wireless signals, including positive integer
The individual reference cycle.
Preferably, methods described also includes：
Within default effective time or before signal detection and/or the renewal of Energy-aware result, UE is to send the cycle
For the granularity of skew, identical resource or resource unit are persistently taken in continuous multiple transmission cycles；Or
Within default effective time or before signal detection and/or the renewal of Energy-aware result, UE is continuous multiple
Send and the resource selected or resource unit are persistently taken in the cycle, or selection sends the money of wireless signal in resource collection
Source, system of selection include but is not limited to randomly choose.
Preferably, UE carries out signal detection and/or the condition of Energy-aware in predetermined resource set includes：UE has data
Send.
According to an aspect of the invention, there is provided a kind of resource selection device of car networking V2X communications, including：Detection
Module, for carrying out signal detection and/or Energy-aware in predetermined resource set；Determining module, for according to signal detection
And/or the result of Energy-aware determines the resource or resource collection for sending wireless signal；Selecting module, for using resource
Or resource is selected to send wireless signal from preferred resources set.
Preferably, detection module comprises at least one below：
First detection unit, for carrying out signal detection and/or Energy-aware in first kind predetermined resource set, its
In, the set of first kind predetermined resource comprises at least the optional resource collection of the first kind, and the optional resource collection of the first kind is included to send and provided
Source pond, but not comprising reception resource pool；
Second detection unit, for carrying out signal detection and/or Energy-aware in the second class predetermined resource set, its
In, the second class predetermined resource set comprises at least the optional resource collection of the second class, and the optional resource collection of the second class comprises at least hair
Send the subset of resource pool and/or receive the subset of resource pool；
3rd detection unit, for carrying out signal detection and/or Energy-aware in the 3rd class predetermined resource set, its
In, the 3rd class predetermined resource set comprises at least one or one group of reference resources or resource unit；Wherein, reference resources or resource
Unit is identical with the UE size with resource or resource unit, is the positive integer reference cycle in the skew of time domain, in frequency domain
Do not offset, with resource or resource unit be UE have been used to send wireless signal resource or resource unit, the reference cycle
The cycle of wireless signal or default periodic quantity are sent for other UE outside UE.
Preferably, signal detection and/or the result of Energy-aware include at least one of：
Resource is idle, represents to be not received by wireless signal in corresponding resource；Or it is not detected by wireless signal energy
The wireless energy signal measured or perceived is less than decision threshold；
Resource is hurried, and represents to receive wireless signal in corresponding resource, including reception signal is decoded and/or is demodulated to
Work(, or, perceive wireless energy signal and meet or exceed decision threshold；
The idle or busy grade of resource, represent that grade point corresponds to the degree of strength of reception signal energy in resource.
Preferably, the first detection unit includes：Unit is perceived, for carrying out signal energy perception in perceived window, and will
Sensing results of the sensing results of perceived window as corresponding resource unit, wherein, the size of perceived window is no more than minimum in time domain
The time of resource unit, a perceived window is at least intactly included in each resource unit.
Preferably, determining module includes：First determining unit, when signal detection and/or the result of Energy-aware are resource
When idle, it is determined that corresponding resource or resource unit belong to resource collection, or determine that corresponding resource or resource unit are used to send
Wireless signal；Or the determine the probability mapped according to the idle or busy grade point of resource corresponds to resource or resource unit belongs to money
Source set or the probability for sending wireless signal.
Preferably, determining module also includes：
Second determining unit, for carrying out a signal detection and/or Energy-aware, signal detection in the 3rd detection unit
And/or the result of Energy-aware is that resource is idle；Or carry out multiple signal detection and/or energy sense in the 3rd detection unit
Know, the result of signal detection and/or Energy-aware is that resource is idle, or the signal detection of part number and/or energy sense
The result known is that resource is idle, and can be determined that according to result and use resource or resource unit that signal conflict is not present；Then select
Select by nearest one with the basis of resource or resource unit, the resource or resource unit after the skew transmission cycle are wireless to send
The resource or resource unit of signal belong to resource collection, wherein, it is the cycle that UE sends wireless signal to send the cycle, including just
The integer reference cycle；
3rd determining unit, for carrying out a signal detection and/or Energy-aware, signal detection in the 3rd detection unit
And/or the result of Energy-aware is hurried for resource；Or multiple signal detection and/or Energy-aware are carried out in the 3rd detection unit,
Signal detection and/or the result of Energy-aware are that resource is hurried；Or the signal detection of part number and/or the knot of Energy-aware
Fruit hurries for resource, and can be determined that signal conflict be present with resource or resource unit according to result；Then determine corresponding with most
Nearly one, with the basis of resource or resource unit, offsets the resource after sending the cycle or resource unit is not used in transmission wireless communication
Number or be not belonging to resource collection, wherein, it is the cycle that UE sends wireless signal to send the cycle, including positive integer reference cycle；
4th determining unit, for being detected according to the 3rd detection unit and/or the resource of Energy-aware is idle or busy
Grade point determines resource or resource collection, and different probability is mapped to according to different grade points, it is determined that having been used with nearest one
Resource or resource unit on the basis of resource or resource unit after the skew transmission cycle are the resource or resource for sending wireless signal
The probability of unit is not used in the probability for sending wireless signal, or resource or resource unit belong to or are not belonging to the general of resource collection
Rate, wherein, send the cycle that the cycle is UE transmission wireless signals, including positive integer reference cycle.
In the present invention, UE carries out signal detection and/or Energy-aware in predetermined resource set, and according to signal detection
And/or the result of Energy-aware determines the resource or resource collection for sending wireless signal, lead to keeping V2P communications and V2X
While the reliability of letter, it is possible to increase P-UE power consumption efficiency, reach power saving purpose.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the configuration diagram that V2X communicates in correlation technique；
Fig. 2 is the schematic diagram of Radio Resource frame structure in correlation technique；
Fig. 3 is the schematic diagram of Radio Resource structure in correlation technique；
Fig. 4 is resource selection method flow chart according to embodiments of the present invention；
Fig. 5 is an example of according to embodiments of the present invention one resource selection method；
Fig. 6 is an example of according to embodiments of the present invention two resource selection method；
Fig. 7 is an example of according to embodiments of the present invention three resource selection method；
Fig. 8 is an example of according to embodiments of the present invention four resource selection method；
Fig. 9 is another example of according to embodiments of the present invention four resource selection method；
Figure 10 is resource selection apparatus structure block diagram according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.
Technology of the present invention is applied to cellular radio Communication system or network.Common cellular radio Communication system can
With based on CDMA (Code Division Multiplexing Access, CDMA) technology, FDMA (Frequency
Division Multiplexing Access, frequency division multiple access) technology, (Orthogonal-FDMA, orthogonal frequency are more by OFDMA
Location) technology, SC-FDMA (Single Carrier-FDMA, single-carrier frequency division multiple access) technology, etc..For example, 3GPP (3rd
Generation Partnership Project) LTE (Long Term Evolution, Long Term Evolution)/LTE-A (LTE-
Advanced, senior long term evolution) cellular communication system downlink (or being forward link) is based on OFDMA technologies, and it is up
Link (or being reverse link) is based on SC-FDMA multiple access technologies.
In OFDMA/SC-FDMA systems, when the Radio Resource (Radio Resource) for communication is-frequency bidimensional
Form.For example, for LTE/LTE-A systems, the communication resource of uplink and downlink link is all with nothing on time orientation
Line frame (radio frame) divides for unit, and each radio frames (radio frame) length is 10ms, is comprising 10 length
1ms subframe (sub-frame), each subframe include two time slots (slot) that length is 0.5ms, as shown in Figure 2.And according to
The configuration of cyclic prefix (Cyclic Prefix, CP) is different, and each time slot can include 6 or 7 OFDM or SC-FDMA symbols
Number.
In frequency direction, resource is divided with subcarrier (subcarrier) for unit, specifically in the communications, frequency domain resource point
The least unit matched somebody with somebody is RB (Resource Block, resource block), PRB (Physical RB, a thing of corresponding physical resource
Manage resource block).One PRB includes 12 subcarriers (sub-carrier) in frequency domain, corresponding to a time slot of time domain
(slot).The resource of a corresponding subcarrier is referred to as resource unit (Resource on each OFDM/SC-FDMA symbols
Element, RE).As shown in Figure 3.
In the various embodiments that the present invention describes, using with LTE cellular communication identical Radio Resource structures.By this hair
The bright resource selection method included, the efficiency of UE raisings power consumption in V2X communications can be made.
A kind of resource selection method of V2X communications is provided in the present embodiment, and Fig. 5 is resource according to embodiments of the present invention
System of selection flow chart, as shown in figure 5, the flow comprises the following steps：
Step S402, UE carry out signal detection and/or Energy-aware in predetermined resource set；
Step S404, UE determine the resource for sending wireless signal according to the result of signal detection and/or Energy-aware
Or preferred resources set；
Step S406, UE select resource to send wireless signal using resource or from preferred resources set.
In the present embodiment, pass through above-mentioned steps so that UE keep V2P communication and V2X communication reliability while,
P-UE power consumption efficiency can be improved, reaches power saving purpose.
It is further illustrated below in conjunction with specific embodiment.
Embodiment one
In the present embodiment, it is the selection of first progress resource, then carries out signal detection and/or Energy-aware again.
The present embodiment illustrates by taking P-UE resource selection during V2X communicates as an example, and Fig. 5 is the money of the embodiment of the present invention one
Source system of selection schematic diagram.
As shown in figure 5, P-UE selects P2V (P-UE sends V-UE and received) resource 1 by random fashion, and provided using P2V
Source 1 sends P2V message.Except random selection, P-UE can also select P2V by way of signal detection and/or Energy-aware
Resource 1.UE indicates parameter determination according to network side or determines which kind of mode to select P2V resources 1 using according to preconfiguration parameters.
In order to facilitate description, the cycle of P-UE transmission P2V message is defined to send the cycle, reaches cycle phase pair with data
Should, it is assumed that be 1s.Definition signal detects and/or the cycle of Energy-aware is detection and/or perception cycle, it is assumed that is 100ms.
P-UE is sent in cycle 1s, using 100ms as the cycle, at least one after P2V resources 1 send P2V message at one
Signal detection and/or Energy-aware are carried out to detecting and/or perceiving resource in the individual cycle, wherein detection and/or perception resource phase
N times (N is positive integer) that time domain skew to P2V resources 1 is 100ms, detection and/or the time domain scale and P2V for perceiving resource
Resource 1 is fixed identical with P2V resources 1 on frequency domain or be system full bandwidth identical or less than P2V resources 1.
Example is to carry out signal detection and/or Energy-aware in each 100ms cycles in 1s in Fig. 5.Except this
In addition, P-UE can also carry out signal detection and/or Energy-aware within the 100ms cycles of 1s inside points, such as, provided in P2V
Signal detection and/or Energy-aware are carried out in first 100ms after source 1, or, enter in any one 100ms of others
Row signal detection and/or Energy-aware, or, select to carry out signal detection and/or Energy-aware, M in M 100ms in 1s
For 1~10 positive integer, such as last 3 100ms cycles.UE indicates that parameter determines or according to pre-configured ginseng according to network side
Number determines to carry out the number of signal detection and/or Energy-aware, and/or signal detection and/or the resource and/or money of Energy-aware
Source unit, such as RRC signaling.
P-UE sends signal detection and/or the result of Energy-aware in the cycle according to one or more and determines to send next time
The resource of P2V message, example is true by the result of a signal detection sent in cycle 1s and/or Energy-aware in Fig. 5
Fix the resource for once sending P2V message, that is, the P2V resources 2 in figure.
In the present embodiment, signal detection and/or the result of Energy-aware may include following several：
(1) resource is idle：In one or many signal detections and/or Energy-aware, detection and/or energy sense each time
The result known is all idle for resource.Represent with the P2V resources 1 that the P-UE is selected to exist without the resource of other UE selections and conflict,
Including part conflict and conflict completely；
(2) resource part is idle/busy：Multiple signal detection and/or Energy-aware in, have part number detection and/
Or the result of Energy-aware is that resource is idle, while the detection of part number and/or the result of Energy-aware are hurried for resource.Represent
There is the resource that other UE are selected the possibility to conflict to be present, it is necessary to according to the idle result of resource with the P2V resources 1 that the P-UE is selected
The distribution situation for the result hurried with resource determines whether P2V resources 1 are truly present conflict, including part conflict and rushes completely
It is prominent；
(3) resource is hurried：In one or many signal detections and/or Energy-aware, each time detection and/or Energy-aware
Result all hurried for resource.Indicate that the presence of P2V resources 1 that resource and the P-UE of other UE selections are selected conflicts, including portion
Divide conflict and completely conflict.
P-UE is according to signal detection and/or the result of Energy-aware, if result is that (1) resource is idle, P-UE is not weighed
New selection resource, selects the frequency domain resource of P2V resources 2 identical with P2V resources 1, is separated by one in time domain between P2V resources 1
Send cycle, such as 1s；Or if result is that (2) resource part is idle/busy, before P-UE is according to selection P2V resources 2
One or more sends the signal detection and/or Energy-aware result in the cycle, judges if not reselecting resource, if
Resource contention occurs, it is different from P2V resources 1 if it is to reselect the frequency domain resource of P2V resources 2, such as example institute in Fig. 5
Show, or be separated by time domain not equal to the cycle is sent, avoid conflicting with V2X resources 1, otherwise do not reselect resource；Or
Hurried if result is (3) resource, it is different from P2V resources 1 to reselect the frequency domain resource of P2V resources 2, such as example institute in Fig. 5
Show, or be separated by time domain not equal to the cycle is sent, avoid conflicting with V2X resources 1.
It should be noted that if P-UE selects resource according to signal energy sensing results, the result of Energy-aware can
To determine being that resource is idle or resource is done according to signal energy and judging threshold is perceived relatively.For example it is more than decision threshold
Then be determined as that resource is done, it is on the contrary then be determined as resource free time；Or grade point mode is expressed as the journey that resource is idle or resource is busy
Degree, for example N number of grade is divided into according to the power for perceiving signal energy, N can take positive integer, such as 1,2,3,4,5,6,8,10
Represent that the resource of sensing results is busy Deng, different grade point or that resource is idle is different degrees of.
For example, during N=4, grade point can be expressed as 0,1,2,3, wherein 0 represents resource idle degrees highest, 3 represent money
Source idle degrees are minimum, and the busy representation of resource can be expressed in a comparable manner.P-UE can be according to Energy-aware knot
Grade point corresponding to fruit determines whether to reselect resource, for example grade point reselects resource more than or equal to 2, or,
According to corresponding each grade point, there is a probable value for reselecting resource, such as, grade point corresponds to for 0 and reselects money
The probable value in source is 5%, and grade point is that 1 corresponding gravity treatment probable value is 20%, correspondingly, 2 corresponding 30%, 3 corresponding 45%.
100ms detection and/or perception cycle are the present embodiment for example, the value in cycle can also be other
Value, such as 200ms, 50ms etc., P-UE may not be before P2V message is sent and carry out signal detection in each cycle
And/or Energy-aware, but signal detection and/or Energy-aware are only carried out within some cycles or in some cycle, than
Such as within last cycle.
In the present embodiment, in addition to have ready conditions or unconditionally carry out signal detection and/or Energy-aware, if bar
Part carries out signal detection and/or Energy-aware, then condition includes：UE has data to send；For example P-UE have selected resource 1 and send out
P2V message has been sent, then has carried out signal detection and/or Energy-aware.
In the present embodiment, P-UE determines to send the resource of P2V message or after gravity treatment sends the resource of P2V message, can be with
It is only effective to sending P2V message next time, or update it in interior or signal detection and/or Energy-aware result for a period of time
Before, it is effective to sending P2V message each time.
Embodiment two
Fig. 6 is the schematic diagram of the resource selection method of the embodiment of the present invention two, as shown in fig. 6, P-UE is in private resource pond
Selection resource is used to send P2V message, sends the resource of P2V message with sending the resource of V2X message to be mutually orthogonal.Special money
The configuration parameter in source pond can pass through high-rise configuration signal or pre-configured acquisition.
In the example of fig. 6, the full bandwidth resource containing 10ms is P-UE private resources pond in every 100ms time domains
Collect, 10 P2V private resources pond collection in the range of 1s, for selecting resource to send P2V message.P-UE private resources pond collection
There can also be other different configuration parameters.
P-UE carries out signal detection and/or Energy-aware to P-UE private resources pond collection, according to signal detection and/or energy
Amount sensing results determine preferred resources set, and P-UE selects resource to send P2V message from preferred resources set.
In the present embodiment, signal detection and/or the result of Energy-aware include following several：
(1) resource is idle：Be not received by wirelessly in signal detection and/or the resource or resource unit of Energy-aware
Signal；Or the wireless energy signal for being not detected by wireless energy signal or perceiving is less than decision threshold；
(2) resource is hurried：Carry out that in signal detection and/or the resource or resource unit of Energy-aware wireless communication can be received
Number, including reception signal is decoded and/or demodulated successfully, and/or reception signal is decoded and/or demodulated and is failed；Or, perceive
Wireless energy signal meets or exceeds decision threshold；
(3) the idle or busy grade of resource：Received in signal detection and/or the resource or resource unit of Energy-aware
The degree of strength of signal energy.
P-UE determines preferred resources set according to signal detection and/or Energy-aware result is judged in window.Wherein, judge
Window is a period of time before P2V data reach, can be one or more P2V send the cycles or one it is fixed when
Between, such as 1s or 2s.
For example, window is judged for 1s in Fig. 6 examples, according to signal detection and/or energy in the 1s before data due in
Amount sensing results determine preferred resources set.The signal of a certain resource or resource unit is concentrated to examine for P-UE private resources pond
Survey and/or Energy-aware：
If judging that the signal detection of all P-UE private resources pond collection and/or Energy-aware result are all for money in window
Source is idle, then corresponding resource or resource unit are defined as to the resource of preferred resources set；
Or if in the signal detection and/or Energy-aware for judging there was only part P-UE private resources pond collection in window
As a result hurried for resource, then according to the time interval of these parts P-UE private resources pond collection, thus it is speculated that go out the resource or resource
Unit is busy distribution period, if P-UE selects the P-UE private resources pond collection of resource to meet to be somebody's turn to do after data due in
Distribution period, it is determined that corresponding resource or resource unit are not belonging to the resource of preferred resources set, whereas if being unsatisfactory for this point
The cloth cycle, it is determined that correspond to resource or resource unit belongs to the resource of preferred resources set；Similarly, can also be according to part P-
The signal detection and/or Energy-aware result that UE private resources pond integrates as the idle situation of resource come deduce the resource or
Resource unit is idle distribution period, and determine the resource or resource unit whether be preferred resources set resource.
Or if in the signal detection and/or Energy-aware knot for judging all P-UE private resources pond collection in window
Fruit hurries for resource, it is determined that the resource or resource unit are not preferred the resource of resource collection.
If P-UE determines preferred resources set according to signal energy sensing results, the result of Energy-aware can be expressed as
It is that resource is idle or resource is hurried that P-UE private resources pond, which is concentrated and resource is perceived corresponding to perceived window,.A kind of mode is to pass through perception
To signal energy value compared with decision threshold determination sensing results, perceive signal energy value and be then determined as more than decision threshold
Resource is hurried, and is otherwise determined as the resource free time；
Or the idle or busy grade of resource is expressed as, N number of grade is divided into according to the power for perceiving signal energy, N can
To take positive integer.Such as P-UE1 carries out Energy-aware to P-UE private resources pond collection according to subframe, according to the signal energy of perception
The power of amount corresponds to 5 different brackets, and the resource that different brackets corresponds to the subframe can be determined belonging to preferred resources set
Probability, the probability that grade point 0 represents the resource and can be determined belonging to preferred resources set is 5%, and grade point 1 represents corresponding
Probability be 10%, correspondingly, probability corresponding to grade point 2 be 20%, probability corresponding to 3 be 30%, probability is corresponding to 4
35%.
In the present embodiment, in addition to have ready conditions or unconditionally carry out signal detection and/or Energy-aware, if bar
Part carries out signal detection and/or Energy-aware, then condition includes：UE has data to send；For example P-UE has the transmission of P2V message,
Signal detection and/or Energy-aware then are carried out to P-UE private resources pond collection, and preferred resources set is determined according to result.
In the present embodiment, the preferred resources set of P-UE determinations can be only effective to sending P2V message next time, or
Person is effective to sending P2V message each time within a period of time or before signal detection and/or the renewal of Energy-aware result, often
Secondary transmission P2V message all selects resource from the preferred resources set, and system of selection includes but is not limited to randomly choose.
Embodiment three
Fig. 7 is the schematic diagram of the resource selection method of the embodiment of the present invention three, and P2V transmission transmits shared resource pond with V2X,
Including send resource pool and receive resource pool, some P-UE using the part resource in resource pool as transmission resource pool subset,
Only select resource to send P2V message sending in resource pool subset, judging in the transmission resource pool subset that window is included
Preferred resources set is determined according to signal detection and/or Energy-aware result.In the transmission resource pool subset, only send
P2V message, or preferential transmission P2V message.
Or using the part resource in resource pool as resource pool subset is sent, it is special to send P2V message for all P-UE
With, or be preferentially used for P-UE and send P2V message.
For example, as shown in fig. 7, P-UE1 is used as transmission resource pond using the full bandwidth resource of 10ms scopes in each 100ms
Collection, to sending resource or resource unit progress signal detection and/or Energy-aware in resource pool subset.When judging window for 1s
Between, P-UE1 determines preferred resources set according to signal detection in 1s and/or the result of Energy-aware, and P-UE1 is from preferred resources
Resource is selected to send P2V message in set.
The transmission resource pool subset is configured by network side or pre-configured determination, and different P-UE configuration parameter content can
With difference.For example P-UE1 can carry out signal detection and/or Energy-aware in the cycle based on 100ms in 500ms, perception
Number can be 1 time, 2 times, or repeatedly；P-UE2 can carry out signal detection and/or energy in the cycle based on 200ms in 1s
Perceiving, the number of perception can also be 1 time, 2 times, or repeatedly.
In the present embodiment, P-UE can send resource pool subset to one or more and carry out signal detection and/or energy
Perceive, including signal detection and/or Energy-aware are carried out to all transmission resource pool subsets, if to multiple transmission resource pools
Subset carries out signal detection and/or Energy-aware, including continuously or discretely carries out signal to multiple transmission resource pool subsets
Detection and/or Energy-aware.
If P-UE determines preferred resources set according to signal energy sensing results, the result of Energy-aware can be expressed as
It is that resource is idle or resource is hurried to send and perceive resource in resource pool subset corresponding to perceived window.A kind of mode is by perceiving
Signal energy value determination sensing results compared with decision threshold, perceive signal energy value and be then determined as resource more than decision threshold
It is busy, otherwise it is determined as the resource free time；
Or the idle or busy grade of resource is expressed as, N number of grade is divided into according to the power for perceiving signal energy, N can
To take positive integer.Such as P-UE1 carries out Energy-aware to sending resource pool subset according to subframe, according to the signal energy of perception
Power corresponds to N=3 different brackets, and the resource that different brackets corresponds to the subframe is confirmed as belonging to preferred resources set
Probability, the probability that grade point 0 represents the resource and can be confirmed as belonging to preferred resources set is 10%, the expression pair of grade point 1
The probability answered is 30%, and correspondingly, probability corresponding to grade point 2 is 60%.
Or for V-UE, V2X message is not sent in the transmission resource pool subset, or described send is provided
Source pond is detected, if testing result has the transmission of P2V message for described send in resource pool, not in the transmission resource pool
V2X message is sent in subset, i.e., P2V message prioritizations are sent in the transmission resource pool subset.
In the present embodiment, in addition to have ready conditions or unconditionally carry out signal detection and/or Energy-aware, if bar
Part carries out signal detection and/or Energy-aware, then condition includes：UE has data to send；For example P-UE has the transmission of P2V message,
Signal detection and/or Energy-aware then are carried out to the transmission resource pool subset, and preferred resources set is determined according to result.
In the present embodiment, the preferred resources set of P-UE determinations can be only effective to sending P2V message next time, or
Person is effective to sending P2V message each time within a period of time or before signal detection and/or the renewal of Energy-aware result, often
Secondary transmission P2V message all selects resource from the preferred resources set, and system of selection includes but is not limited to randomly choose.
Example IV
The embodiment of the present invention four describes the method that Energy-aware result selection resource is carried out based on perceived window.UE is in energy
Measure perceived window and carry out signal energy perception, perceived window could be arranged to be less than system subframe length, each perceived window in time domain
Belong to a subframe.
The result that UE carries out Energy-aware in perceived window is hurried including resource free time or resource, and subframe where illustrating is corresponding to be provided
The idle or busy situation in source, such as, if UE1 can perceive signal energy in perceived window, or signal energy intensity is more than judgement
Thresholding, then it is assumed that resource perception result is hurried for resource corresponding to the subframe belonging to the perceived window, otherwise idle for resource.UE according to
Judge that the Energy-aware result in window determines preferred resources set.
For example, as shown in figure 8, perceived window is no more than SC-FDMA subframe scopes in time domain, for example 10us, P-UE1 are according to sentencing
Energy-aware result in disconnected window in one or more perceived windows determines preferred resources set, when selecting resource from preferred resources
Resource is selected in set.
Expression for sensing results, it is idle N number of resource can also to be corresponded to according to the intensity of the signal energy perceived
Or busy grade, UE determined according to the idle or busy grade point of resource corresponding to sub-frame resources whether can be defined as preferably providing
The resource of source set, or the resource using certain determine the probability as preferred resources set.
For example, Energy-aware result corresponds to 3 grade points, corresponding grade value is 0,1,2, and grade point 0 represents corresponding money
The idle probability in source is 10%, and P-UE can correspond to money of the resource as preferred resources set using 10% determine the probability in other words
Source, correspondingly, grade point 1 represent that corresponding probability is 20%, and probability corresponding to 2 expressions is 70%.
Signal shown in Fig. 8 exists without position of the perceived window in subframe, the method described in the present embodiment is limited to perceived window
Position in subframe is not construed as limiting, and a kind of preferable window position that perceives is to send DMRS (Demodulation in corresponding subframe
Reference Signal, demodulated reference signal) SC-FDMA character positions, example as shown in Figure 9.
In the present embodiment, in addition to have ready conditions or unconditionally carry out Energy-aware, energy sense is carried out if had ready conditions
Know, then condition includes：UE has data to send；For example P-UE has the transmission of P2V message, then carries out energy sense in Energy-aware window
Know, and preferred resources set is determined according to result.
In the present embodiment, the preferred resources set of P-UE determinations can be only effective to sending P2V message next time, or
Person is effective to sending P2V message each time within a period of time or before signal detection and/or the renewal of Energy-aware result, often
Secondary transmission P2V message all selects resource from the preferred resources set, and system of selection includes but is not limited to randomly choose.
The resource selection method of the present embodiment description at least can be used for special transmission resource pool, however not excluded that suitable for shared
Resource pool.It is meanwhile above-mentioned only with P-UE for example, equally applicable for V-UE or other UE.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage
In medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, calculate
Machine, server, or network equipment etc.) perform method described in each embodiment of the present invention.
A kind of resource selection device of V2X communications is additionally provided in the present embodiment, and the device is used to realize above-mentioned implementation
Example and preferred embodiment, repeating no more for explanation was carried out.As used below, term " module " can be realized pre-
Determine the combination of the software and/or hardware of function.Although device described by following examples is preferably realized with software,
Hardware, or the realization of the combination of software and hardware is also what may and be contemplated.
Figure 10 is the structured flowchart of the resource selection device of V2X communications according to embodiments of the present invention, as shown in Figure 10, should
Device includes：Detection module 10, for carrying out signal detection and/or Energy-aware in predetermined resource set；Determining module 20,
For determining the resource for sending wireless signal or preferred resources set according to the result of signal detection and/or Energy-aware；
Selecting module 30, for selecting resource to send wireless signal using resource or from preferred resources set.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or above-mentioned module is respectively positioned at more
In individual processor.
Embodiments of the invention additionally provide a kind of storage medium.In the present embodiment, the storage medium can be set
To store the program code for being used for performing embodiment hereinbefore：
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or
CD etc. is various can be with the medium of store program codes.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations and combination.Within the spirit and principles of the invention, made
Any modification, equivalent substitution and improvements, combination etc., should be included in the scope of the protection.
Claims (16)
- A kind of 1. resource selection method of car networking V2X communications, it is characterised in that including：UE carries out signal detection and/or Energy-aware in predetermined resource set；The UE determines the resource or resource set for sending wireless signal according to the result of signal detection and/or Energy-aware Close；The UE selects resource to send wireless signal using the resource or from the resource collection.
- 2. resource selection method according to claim 1, it is characterised in that the predetermined resource set include it is following at least One of：The set of first kind predetermined resource, the second class predetermined resource set, the 3rd class predetermined resource set；Wherein,The first kind predetermined resource set comprises at least the optional resource collection of the first kind, the optional resource collection bag of the first kind The subset for sending resource pool or sending resource pool is included, does not include receiving resource pool or receives the subset of resource pool；The second class predetermined resource set comprises at least the optional resource collection of the second class, the optional resource collection bag of the second class Include the subset for sending resource pool and/or the subset for receiving resource pool；The 3rd class predetermined resource set comprises at least one or one group of reference resources or resource unit, or including at least one Individual or multiple predetermined resource subsets, the predetermined resource subset comprise at least one or one group of reference resources or resource unit；Its In, the reference resources or resource unit are identical with the size with resource or resource unit of the UE, in the skew of time domain For the positive integer reference cycle, do not offset in frequency domain, described be that the UE has been used to send with resource or resource unit The resource or resource unit of wireless signal, the reference cycle be the UE outside other UE send wireless signal cycle or Default periodic quantity.
- 3. the resource selection method stated according to claim 2, it is characterised in that the optional resource collection of the first kind and/or The optional resource collection of two classes is configured by network side and/or pre-configured determination.
- 4. the resource selection method stated according to claim 1, it is characterised in that the knot of the signal detection and/or Energy-aware Fruit includes at least one of：Resource is idle, represents to be not received by wireless signal in corresponding resource；Or be not detected by wireless energy signal or The wireless energy signal perceived is less than decision threshold；Resource is hurried, and represents to receive wireless signal in corresponding resource, including reception signal is decoded and/or demodulated successfully, or, Perceive wireless energy signal and meet or exceed decision threshold；The idle or busy grade of resource, represent that grade point corresponds to the degree of strength of reception signal energy in resource.
- 5. resource selection method according to claim 2, it is characterised in that UE carries out signal inspection in predetermined resource set Survey and/or Energy-aware, including：The UE is in the first kind predetermined resource set, or in the second predetermined resource set, or the described 3rd In class predetermined resource set, one or many signal detections and/or Energy-aware are carried out, according to one or many signal detections And/or Energy-aware obtains signal detection and/or the result of Energy-aware.
- 6. resource selection method according to claim 1, it is characterised in that the UE carries out letter in predetermined resource set Number detection and/or Energy-aware, including：The UE carries out signal energy perception in perceived window, wherein, the size of the perceived window is no more than most petty bourgeoisie in time domain The time of source unit, a perceived window is at least intactly included in the time of each resource unit；Using the sensing results of the perceived window as the sensing results in the time of corresponding resource unit.
- 7. resource selection method according to claim 5, it is characterised in that the UE is according in the predetermined money of the first kind Source is gathered, or signal detection in the second class predetermined resource set and/or the result of Energy-aware determine to be used to send nothing The resource or resource collection of line signal, including：When signal detection and/or the result of Energy-aware are resource space idle, it is determined that corresponding resource or resource unit belong to money Source is gathered, or determines that corresponding resource or resource unit are used to send wireless signal；Or according to the idle or busy grade point of resource The determine the probability of mapping corresponds to resource or resource unit belongs to the resource collection or the probability for sending wireless signal.
- 8. resource selection method according to claim 5, it is characterised in that the UE is according in the predetermined money of the 3rd class The signal detection and/or the result of Energy-aware that source collection closes determine the resource or resource collection for sending wireless signal, bag Include at least one of：The result of a UE signal detection of progress and/or Energy-aware, signal detection and/or Energy-aware is resource space It is not busy；Or the UE carries out multiple signal detection and/or Energy-aware, the result of signal detection and/or Energy-aware is money Source is idle；Or the UE carries out multiple signal detection and/or Energy-aware, the signal detection of part number and/or energy sense The result known is that resource is idle, can be determined that according to result and signal conflict has been not present with resource or resource unit described；Then By nearest one with the basis of resource or resource unit, resource or resource unit after the skew transmission cycle are to send nothing for selection The resource or resource unit of line signal belong to the resource collection, wherein, the transmission cycle is that the UE sends wireless communication Number cycle, including positive integer reference cycle；The result of a UE signal detection of progress and/or Energy-aware, signal detection and/or Energy-aware is hurried for resource； Or the UE carries out multiple signal detection and/or Energy-aware, the result of signal detection and/or Energy-aware is resource It is busy；Or the UE carries out multiple signal detection and/or Energy-aware, the signal detection of part number and/or Energy-aware As a result hurried for resource, can be determined that signal conflict be present with resource or resource unit described according to result；Then determine corresponding By nearest one with the basis of resource or resource unit, resource or resource unit after the skew transmission cycle are not used in transmission nothing Line signal is not belonging to the resource collection, wherein, it is described to send the cycle that the cycle is UE transmission wireless signals, including just The integer reference cycle；The UE determines resource or resource collection according to the grade point that resource is idle or does, and is mapped to not according to different grade points Same probability, it is determined that skew sends the resource or resource after the cycle on the basis of using resource or resource unit described in nearest one Unit is the resource of transmission wireless signal or the probability of resource unit or is not used in the probability for sending the wireless signal, or described Resource or resource unit belong to or are not belonging to the probability of the resource collection, wherein, the transmission cycle is that the UE sends nothing The cycle of line signal, including the positive integer reference cycle.
- 9. according to the resource selection method described in any one of claim 1 to 8, it is characterised in that methods described also includes：Within default effective time or before signal detection and/or the renewal of Energy-aware result, the UE is with the transmission Cycle is the granularity of skew, and identical resource or resource unit are persistently taken in continuous multiple transmission cycles；OrWithin default effective time or before signal detection and/or the renewal of Energy-aware result, the UE is continuous multiple Send and the resource selected or resource unit are persistently taken in the cycle, or selection sends wireless signal in the resource collection Resource, system of selection include but is not limited to randomly choose.
- 10. resource selection method according to claim 1, it is characterised in that the UE is carried out in predetermined resource set Signal detection and/or the condition of Energy-aware include：The UE has data to send.
- A kind of 11. resource selection device of car networking V2X communications, it is characterised in that including：Detection module, for carrying out signal detection and/or Energy-aware in predetermined resource set；Determining module, for determined according to the result of signal detection and/or Energy-aware resource for sending wireless signal or Resource collection；Selecting module, for selecting resource to send wireless signal using the resource or from the preferred resources set.
- 12. resource selection device according to claim 11, it is characterised in that the detection module comprise at least it is following it One：First detection unit, for carrying out signal detection and/or Energy-aware in first kind predetermined resource set, wherein, the A kind of predetermined resource set comprises at least the optional resource collection of the first kind, and the optional resource collection of the first kind, which includes, sends resource Pond, but not comprising reception resource pool；Second detection unit, for carrying out signal detection and/or Energy-aware in the second class predetermined resource set, wherein, institute State the second class predetermined resource set and comprise at least the optional resource collection of the second class, the optional resource collection of the second class comprises at least Send the subset of resource pool and/or receive the subset of resource pool；3rd detection unit, for carrying out signal detection and/or Energy-aware in the 3rd class predetermined resource set, wherein, institute State the 3rd class predetermined resource set and comprise at least one or one group of reference resources or resource unit；Wherein, the reference resources or Resource unit is identical with the size with resource or resource unit of the UE, is positive integer reference week in the skew of time domain Phase, do not offset in frequency domain, it is described with resource or resource unit be the UE have been used to send wireless signal resource or Resource unit, the reference cycle are that other UE outside the UE send the cycle of wireless signal or default periodic quantity.
- 13. resource selection device according to claim 11, it is characterised in that the signal detection and/or Energy-aware Result include at least one of：Resource is idle, represents to be not received by wireless signal in corresponding resource；Or be not detected by wireless energy signal or The wireless energy signal perceived is less than decision threshold；Resource is hurried, and represents to receive wireless signal in corresponding resource, including reception signal is decoded and/or demodulated successfully, or, Perceive wireless energy signal and meet or exceed decision threshold；The idle or busy grade of resource, represent that grade point corresponds to the degree of strength of reception signal energy in resource.
- 14. resource selection device according to claim 11, it is characterised in that first detection unit includes：Unit is perceived, for carrying out signal energy perception in perceived window, and using the sensing results of the perceived window as corresponding The sensing results of resource unit, wherein, the size of the perceived window is no more than the time of least resource unit, Mei Gezi in time domain A perceived window is at least intactly included in source unit.
- 15. resource selection device according to claim 12, it is characterised in that the determining module includes：First determining unit, when signal detection and/or the result of Energy-aware are resource space idle, it is determined that corresponding resource or money Source unit belongs to resource collection, or determines that corresponding resource or resource unit are used to send wireless signal；It is or idle according to resource Or the determine the probability of busy grade point mapping corresponds to resource or resource unit belongs to the resource collection or for sending wireless communication Number probability.
- 16. resource selection device according to claim 15, it is characterised in that the determining module also includes：Second determining unit, for carrying out a signal detection and/or Energy-aware, signal detection in the 3rd detection unit And/or the result of Energy-aware is that resource is idle；Or carry out multiple signal detection and/or energy in the 3rd detection unit Perceive, the result of signal detection and/or Energy-aware is that resource is idle, or the signal detection and/or energy of part number The result of perception is that resource is idle, and can be determined that according to result and rushed with resource or resource unit in the absence of signal described It is prominent；Then by nearest one with the basis of resource or resource unit, resource or resource unit after the skew transmission cycle are for selection The resource or resource unit of transmission wireless signal belong to the resource collection, wherein, the transmission cycle is that the UE is sent The cycle of wireless signal, including the positive integer reference cycle；3rd determining unit, for carrying out a signal detection and/or Energy-aware, signal detection in the 3rd detection unit And/or the result of Energy-aware is hurried for resource；Or carry out multiple signal detection and/or energy sense in the 3rd detection unit Know, the result of signal detection and/or Energy-aware is that resource is hurried；Or the signal detection and/or Energy-aware of part number Result hurried for resource, and can be determined that signal conflict be present with resource or resource unit described according to result；Then determine Correspond to by nearest one with the basis of resource or resource unit, resource or resource unit after the skew transmission cycle are not used in hair Send wireless signal or be not belonging to the resource collection, wherein, it is described to send the cycle that the cycle is UE transmission wireless signals, bag Include the positive integer reference cycle；4th determining unit, for being detected according to the 3rd detection unit and/or the resource of Energy-aware is idle or busy Grade point determines resource or resource collection, and different probability is mapped to according to different grade points, it is determined that with described in nearest one With on the basis of resource or resource unit skew send the cycle after resource or resource unit be send wireless signal resource or The probability of resource unit is not used in the probability for sending the wireless signal, or the resource or resource unit belong to or be not belonging to The probability of the resource collection, wherein, it is described to send the cycle that the cycle is UE transmission wireless signals, including positive integer institute State the reference cycle.
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| CN201610665882.2A CN107734649A (en) | 2016-08-11 | 2016-08-11 | A kind of resource selection method and device of V2X communications |
| PCT/CN2017/095475 WO2018028475A1 (en) | 2016-08-11 | 2017-08-01 | Method and apparatus for resource selection of v2x communication |
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| US20210345190A1 (en) * | 2016-03-16 | 2021-11-04 | Sony Group Corporation | Wireless telecommunications system, terminal device, infrastructure equipment, integrated circuitry and methods |
| US11671880B2 (en) * | 2016-03-16 | 2023-06-06 | Sony Group Corporation | Wireless telecommunications system, terminal device, infrastructure equipment, integrated circuitry and methods |
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| CN110415560A (en) * | 2019-08-07 | 2019-11-05 | 腾讯科技（深圳）有限公司 | Resource amount estimation method, collision predicting method and device based on car networking system |
| CN110415560B (en) * | 2019-08-07 | 2020-10-27 | 腾讯科技（深圳）有限公司 | Resource quantity estimation method based on Internet of vehicles system, collision prediction method and device |
| WO2021197316A1 (en) * | 2020-04-01 | 2021-10-07 | 维沃移动通信有限公司 | Resource selection method, terminal and network side device |
| WO2022206853A1 (en) * | 2021-03-30 | 2022-10-06 | 维沃移动通信有限公司 | Resource processing method and apparatus, terminal and readable storage medium |
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| Publication number | Publication date |
|---|---|
| WO2018028475A1 (en) | 2018-02-15 |
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