CN108632781A - Vehicle is to the resource selection or reselecting method and user equipment in extraneous communicate - Google Patents
Vehicle is to the resource selection or reselecting method and user equipment in extraneous communicate Download PDFInfo
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- CN108632781A CN108632781A CN201810036887.8A CN201810036887A CN108632781A CN 108632781 A CN108632781 A CN 108632781A CN 201810036887 A CN201810036887 A CN 201810036887A CN 108632781 A CN108632781 A CN 108632781A
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- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 230000006854 communication Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 43
- 230000005484 gravity Effects 0.000 claims description 28
- 238000011282 treatment Methods 0.000 claims description 28
- 230000011664 signaling Effects 0.000 claims description 26
- 125000006850 spacer group Chemical group 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000001960 triggered effect Effects 0.000 description 6
- 238000004590 computer program Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
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- 238000005859 coupling reaction Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 238000013468 resource allocation Methods 0.000 description 2
- 101100148830 Arabidopsis thaliana SCI1 gene Proteins 0.000 description 1
- 101100054266 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SNF4 gene Proteins 0.000 description 1
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- 230000008901 benefit Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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Abstract
The present invention provides a kind of vehicles to the resource selection or reselecting method and UE of user equipment (UE) execution in extraneous (V2X) communication.The method includes the steps：Detect the physical bypass control channel (PSCCH) that other UE are sent；Single sub-frame resource is selected in the nonoverlapping single sub-frame resource of single sub-frame resource reserved with the PSCCH of detection；And it sends physical bypass in the single sub-frame resource chosen and shares channel (PSSCH).
Description
Technical field
The present invention relates generally to the communication technology, is selected the resource in extraneous (V2X) communication more particularly, to a kind of vehicle
Select or reselecting method and execute this method user equipment (UE).
Background technology
In third generation partner program (3GPP) standard, the direct communication link between device-to-device is known as bypassing
(Sidelink) similar with uplink with downlink, there is also control channels and data channel in bypass, the former is known as object
Manage Bypass Control channel (full name in English：Physical Sidelink Control CHannel, english abbreviation：PSCCH), after
Person is known as physical bypass and shares channel (full name in English：Physical Sidelink Shared CHannel, english abbreviation：
PSSCH).PSCCH is used to indicate the number carried in time-frequency domain resources position, modulation coding scheme and the PSSCH of PSSCH transmission
According to priority etc., PSSCH is for carrying data.
Vehicle communicates (full name in English to the external world：Vehicle to Vehicle/Perdestrian/Infrastructure/
Network, english abbreviation：V2X the control information and data in) can include two kinds of biographies by bypass, at this time V2X communications
Defeated pattern, i.e. transmission mode 3 (Mode 3) and transmission mode 4 (Mode 4).For Mode 3, UE (refer to V2X UE, under
The transmission resource of PSCCH and PSSCH together) are distributed by evolution node B (eNB), and UE passes through physical down chain by receiving eNB
The bypass resource distribution instruction that road control channel (PDCCH) or evolution PDCCH (EPDCCH) are sent determines PSCCH's and PSSCH
Send resource.And in Mode 4, the transmission resource of PSCCH and PSSCH are independently selected by UE according to channel detection result.Believing
In road detection process, UE first by receive the PSCCH of other UE transmissions determine scheduled PSSCH running time-frequency resource position and
Priority, then further the demodulated reference signal of the scheduled PSSCH of detection receives power (PSSCH-RSRP), and will
PSSCH-RSRP is excluded higher than the resource of certain threshold；UE then calculates the average received energy (S-RSSI) of surplus resources, most
A resource is randomly choosed from part resource minimum S-RSSI afterwards as transmission resource.
In the 3GPP standards of Rel-14, UE using Mode 3 or Mode 4 is configured by resource pool, in order to ensure
It distributes to and is not interfered by other UE using the running time-frequency resource of the UE of Mode 3,3 resource pools of Mode and 4 resource pools of Mode should phases
It is mutually orthogonal.However, because resource pool is semi-statically configured, and the use of the number of the UE of a certain resource pool is dynamic change,
If resource in resource pool with it is uncoordinated using the UE numbers of the resource pool, the wasting of resources or not may be caused in resource pool
Foot, so, it configures multiple resource pools and is unfavorable for improving the utilization ratio of running time-frequency resource, while may also be to the performance of V2X systems
It adversely affects.
It can see by analyzing above, consider from the level of resources utilization and V2X system performance perspectives, Mode 3 and Mode
4 UE should be able to be operated in the same resource pool, however in this case, how effectively to avoid or reduce using Mode 3
UE and using Mode 4 UE between interfering with each other, at present still without effective technical solution.
Invention content
According to an aspect of the present invention, provide what a kind of vehicle executed the user equipment (UE) in extraneous (V2X) communication
Resource selection or reselecting method comprising step：Detect the physical bypass control channel (PSCCH) that other UE are sent；With inspection
Single sub-frame resource is selected in the nonoverlapping single sub-frame resource of single sub-frame the resource reserved PSCCH of survey；And in the list chosen
Physical bypass is sent in frame resource shares channel (PSSCH).
According to another aspect of the present invention, it provides during a kind of vehicle communicates extraneous V2X and executes resource selection or gravity treatment side
The user equipment (UE) of method comprising：Detection module, the physical bypass control channel PSCCH sent for detecting other UE；Resource
Selection or gravity treatment module are configured as selecting in the nonoverlapping single sub-frame resource of single sub-frame resource reserved with the PSCCH of detection
Select single sub-frame resource；And sending module, the shared channel PSSCH of physical bypass is sent in the single sub-frame resource chosen.
By the above method and device, the interference in PSCCH scheduling and reserved single sub-frame resource can be preferably avoided,
And the utilization ratio of running time-frequency resource can be improved, improve the performance of V2X systems.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the flow chart of resource selection according to the ... of the embodiment of the present invention or reselecting method；
Fig. 2 is the user equipment (UE) that resource selection or reselecting method are executed in V2X communications according to the ... of the embodiment of the present invention
Block diagram.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, otherwise singulative " one " used herein,
"one", " described " and "the" may also comprise plural form.It is to be further understood that used in the specification of the present invention
Wording " comprising " refers to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or add
Add other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim
Element is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or can also deposit
In intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein
Wording "and/or" includes that the whole of one or more associated list items or any cell are combined with whole.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology), there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless by specific definitions as here, the meaning of idealization or too formal otherwise will not be used
To explain.
It includes nothing that those skilled in the art of the present technique, which are appreciated that " user equipment " used herein above, " terminal device " both,
The equipment of line signal receiver only has the equipment of the wireless signal receiver of non-emissive ability, and includes receiving and emitting
The equipment of hardware has the reception that on bidirectional communication link, can carry out two-way communication and emits the equipment of hardware.It is this
Equipment may include：Honeycomb or other communication equipments, with single line display or multi-line display or no multi-line
The honeycomb of display or other communication equipments；PCS (Personal Communications Service, PCS Personal Communications System),
It can be with combine voice, data processing, fax and/or communication ability；PDA (Personal Digital Assistant,
Personal digital assistant), may include radio frequency receiver, pager, the Internet/intranet access, web browser, account
Originally, calendar and/or GPS (Global Positioning System, global positioning system) receiver；Conventional laptop and/or
Palmtop computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer
Or other equipment." user equipment " used herein above, " terminal device " can be portable, can transport, be mounted on traffic work
Have in (aviation, sea-freight and/or land), or be suitable for and/or be configured in local runtime, and/or with distribution form, fortune
Row is run in any other of the earth and/or space position." user equipment " used herein above, " terminal device " can also be
Communication terminal, access terminals, music/video playback terminal, for example, can be PDA, MID (Mobile Internet Device,
Mobile internet device) and/or mobile phone with music/video playing function, can also be smart television, set-top box etc.
Equipment.
In order to improve resource utilization while improve V2X system performances, the UE using Mode 3 and the UE using Mode 4
It is necessary to be operated in the same resource pool.In this case, in order to avoid or reduce by two kinds of UE between interfere with each other, this
Application proposes resource selection and reselecting method in a kind of V2X communication.
Fig. 1 is the flow chart of resource selection according to the ... of the embodiment of the present invention or reselecting method.
Referring to Fig.1, in a step 101, it is Bypass Control information (Sidelink that UE, which detects the format that other UE are sent,
Control Information, SCI) X physical bypass control channel (PSCCH) (abbreviation SCI X).For example, the UE is to adopt
With the UE of Mode 4.UE detect the PSCCH that other UE are sent obtain in following information at least one of：The PSCCH sends UE and adopts
Transmission mode, the priority of the PSSCH of PSCCH scheduling, the PSSCH frequency domain resources position of PSCCH scheduling should
The resource reservation period of PSCCH instructions, etc..
UE can detect SCI X in the transmission resource pool that UE is currently selected in all PSCCH resources, or only work as in UE
SCI X, such as UE are detected in the part PSCCH resources of the transmission resource pool of preceding selection by receiving described in the signaling determination of eNB
The position of part PSCCH resources.For example, UE is only last in each subframe frequency domain in the transmission resource pool that UE is currently selected
SCI X are detected in one PSCCH resource, alternatively, only in the transmission resource pool inside points subframe frequency domain that UE is currently selected
SCI X are detected in the last one PSCCH resource.
In a step 102, UE is selected in the nonoverlapping single sub-frame resource of single sub-frame resource reserved with the PSCCH of detection
Single sub-frame resource.
Define single sub-frame resource (single-subframe resource) Rx,yFor TTIOn with subchannel x be
The L of pointsubCHA continuous subchannel, wherein y indicate TTIRelative indexing in resource pool, LsubCHIt is determined by UE high levels,
Indicate the subchannel number sent for PSSCH.If UE executes resource selection in subframe n or gravity treatment, UE should be by [n+T1,n
+T2] in range any one belong to the continuous L in the subframe of resource poolsubCHSub-channels are considered as candidate single sub-frame resource, wherein
T1And T2It is determined by UE realizations, and T1≤ 4,20≤T2≤ 100, the sum of note single sub-frame resource is Mtotal, MtotalIt is a candidate single
The collection of sub-frame resources composition is combined into S.Specified otherwise is needed, if UE uses a variety of TTI length in resource pool, for example, portion
Point UE uses the TTI of 1ms length, other part UE to use the TTI of 0.5ms length, then UE when carrying out resource selection or gravity treatment,
It is considered that the TTI length of single sub-frame resource is identical with the TTI length that the UE is used.
For any one of set S single sub-frame resources Rx,y, if there is variable j ∈ { 0, a 1 ..., Cresel-
1 } so that single sub-frame resourceWith the reserved resource overlapping indicated in SCI X, wherein CreselAfter indicating UE resource gravity treatments
Intend the number of reserved resource, Prsvp_TXThe resource assumed when the determination available candidate single sub-frame resource for indicating the instruction of UE high levels is pre-
Remain spaced, then UE in selection or gravity treatment resource by single sub-frame resource Rx,yIt excludes.
According to one embodiment of present invention, if the SCI X detected be specific format, with detection
Single sub-frame resource is selected in the nonoverlapping single sub-frame resource of single sub-frame resource reserved PSCCH.
According to another embodiment of the invention, it if the SCI X detected are specific format, and is wrapped in SCI X
The value prio of the Priority field (Priority) containedRXMore than particular value, then with the PSCCH of detection reserve single sub-frame resource not
Single sub-frame resource is selected in the single sub-frame resource of overlapping.
For example, the specific PSCCH formats are the SCI 1 defined in 3GPP versions 14, or determine with 3GPP versions 14
Formats different adopted SCI 1, or it is identical as the bit number of the SCI1 defined in 3GPP versions 14, and the meaning phase in each domain
Together, but one or more of reserved bit domain specific bit is 1.
According to still another embodiment of the invention, UE further measures the bypass reference signal of the PSSCH scheduled in SCI X
Power (PSSCH-RSRP) is received, if the PSSCH-RSRP is higher than certain threshold, in the list reserved with the PSCCH of detection
Single sub-frame resource is selected in the nonoverlapping single sub-frame resource of sub-frame resources.Specifically, the value for the Priority field for including in SCI X is
prioRX, the single sub-frame resource where the PSSCH of SCI X scheduling is Rxr,m, and UE is in single sub-frame resource Rxr,mUpper measurement
The value of PSSCH-RSRP is more thanWherein prioTXIndicate excellent in the PSCCH of UE high levels instruction next sent
The value in first grade domain, Δ are the value that eNB is configured or is pre-configured,It indicates defined in 3GPP standards 36.331V14.1.0
SL-ThresPSSCH-RSRP-List-r14 in i-th of SL-ThresPSSCH-RSRP, wherein i=(prioTX+Δ)*8+
prioRX+ 1, then UE in selection or gravity treatment resource by single sub-frame resource Rx,yIt is excluded from S.
UE excludes the resource in set S further according to the mode defined in 3GPP versions 14.
In step 103, UE sends the shared channel (PSSCH) of physical bypass in the single sub-frame resource chosen.
With reference to concrete application situation, the application above-mentioned technical proposal is made furtherly with the pattern of equipment room interaction
It is bright.
Situation one
In situation one, SCI X are type one, and type one can be different from existing SCI 1 (i.e. defined in 3GPP versions 14
SCI 1) new PSCCH formats, alternatively, type one is identical with the bit number of current existing SCI 1, and each domain contains
Justice is identical, but one or more of reserved bit domain specific bit can be that 1 (reserved bit domain is all in existing SCI 1
0) bit is.In the nonoverlapping list of single sub-frame resource reserved with the PSCCH of detection when UE progress resource selections or gravity treatment
Single sub-frame resource is selected in frame resource.It is as follows：
In step 201, UE detects the SCI X that other UE are sent.
For example, in this case, the UE for sending SCI X is the UE using Mode 3.
It is true by the physical layer control signaling for receiving eNB using the UE of Mode 3 according to a kind of realization method of this situation
Determine the value in each domain in SCI X, " the resource reservation interval correspondence in the SCI X of instruction should be included at least in the physical layer signaling
Resource pool in number of sub-frames " domain value and SCI X in " the position of subchannel number and subchannel that frequency resource includes
Set " value in domain.Preferably, which is the specific signalings of UE, by specific Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-
RNTI is scrambled, and which UE is selected to be determined by eNB realizations as the transmission UE of SCI X.According to another realization side of this situation
Formula determines the value in each domain in SCI X using the UE of Mode 3 by the physical layer control signaling and high-level signaling that receive eNB,
" the subframe in the corresponding resource pool in resource reservation interval in the SCI X of instruction should be included at least in the physical layer signaling
Number " domain value, and in the high-level signaling should include instruction SCI X in " in the corresponding resource pool in resource reservation interval
The value in number of sub-frames " domain.Physical layer control signaling in above two realization method should be different from the downlink that current standard defines
Control instruction format 5A (DCI 5A), the UE for receiving the physical layer control signaling sends SCI X only according to instruction, and does not exist
PSSCH is sent in the frequency resource of instruction.
According to the realization method one of this situation, SCI X are different from existing SCI 1, and the content of SCI X should include following letter
It is one or more in breath：Precedence information, number of sub-frames D1, CRC in the corresponding resource pool in resource reservation interval, first
The subchannel number and position that the sub-frame interval G1 of reserved resource, single sub-frame resource include.The son of wherein first reserved resource
Subframe where frame position indicates SCI X and first reserved resource interval across the sub-frames.If the subframe where SCI X
For m, then in this case, UE thinks " the subchannel number and son letter that frequency resource includes on subframe m+j × G1+i × D1
Resource indicated by the domain of the position in road " is reserved, and the value of wherein i=0,1,2 ..., M-1, M are defined by standard or eNB configurations, and
And M can be just infinite；J=0 and/or 1, occurrence is defined by standard or eNB configurations.Specified otherwise is needed, if SCI
D1 is indicated as particular value, such as 0 in X, alternatively, not including the " subframe in the corresponding resource pool in resource reservation interval in SCI X
Number D1 ", then UE the D1 in formula m+j × G1+i × D1 can replace with to Pstep or Pmin, wherein Pstep is current money
The basic resources in source pond reserve step-length, and Pmin is the least resource prepared separation that Current resource pond is supported, UE is by receiving eNB
Signaling, standard definition, or it is pre-configured the occurrence for determining the two parameters.
According to the realization method two of this truth condition, the bit number phase in domain and each domain that SCI X and existing SCI 1 include
Together, and some in 7 bits in reservation bit domain or certain specific bits are 1, such as first bit in reserved bit domain is 1,
For distinguishing SCI X and SCI 1.If the subframe where SCI X is m, in this case, UE thinks subframe m+j × G2+
The resource indicated by " frequency resource position and comprising subchannel number " domain on i × D2 is reserved, wherein i=0, and 1,
The value of 2 ..., M-1, M are defined by standard or eNB configurations, and M can be just infinite；J=0 and/or 1, occurrence is determined by standard
Justice or eNB configurations；G2 is just to pass and retransmit spacer domain (Time gap between initial transmission in SCI 1
And retransmission) value, D2 be SCI 1 in resource reservation spacer domain value (Resource reservation) it is right
The number of sub-frames answered.
In step 202, for any one of set S single sub-frame resources Rx,y, if there is a variable j ∈ 0,
1,...,Cresel- 1 } so that single sub-frame resourceWith the reserved resource overlapping indicated in SCI X, wherein CreselIt indicates
The number of reserved resource, P are intended after UE resource gravity treatmentsrsvp_TXWhen indicating the determination available candidate single sub-frame resource of UE high levels instruction
It is assumed that resource reservation interval, then UE in resource selection or gravity treatment by single sub-frame resource Rx,yIt is excluded from S.Alternatively, if
Include the value prio of Priority field (Priority) in SCI XRXMore than a certain particular value, then UE will in resource selection or gravity treatment
Single sub-frame resource Rx,yIt is excluded from S.
UE can exclude the resource in set S further according to the mode defined in 3GPP versions 14.
UE randomly chooses a single sub-frame resource for data transmission in remaining resource.
In step 203, UE sends PSCCH in the corresponding PSCCH resources of single sub-frame resource chosen, and in the list chosen
PSSCH is sent in sub-frame resources.
Situation two
In situation two, SCI X may be type two and type three, wherein type two and (the i.e. 3GPP versions 14 of existing SCI 1
Defined in SCI 1) it is identical, preferably, the UE that the transmission UE of type two is the Rel-14 for being operated in mode 3.Three He of type
SCI 1 is different, such as the value of one or more specific bits in reserved bit domain is 1, and preferably, the transmission UE of type three is work
Make the new version UE in mode 4.According to this situation realization method one, if the number that the new version UE for being operated in mode 3 is sent
It is received to UE according to after needs, then two SCI of type that the new version UE of the mode 3 is sent；According to this situation realization method two, such as
Fruit receives after being operated in the data needs of the new version UE transmissions of mode 3 to UE, then the new version UE transmission types of the mode 3
Three SCI.Meanwhile SCI X types one, type two, type three are different.If the SCI X that UE is received are type two, UE
After receiving SCI X, UE can be measured further by the PSSCH-RSRP of the SCI X PSSCH dispatched, UE carry out resource selection or
When gravity treatment, for any one single sub-frame resource in candidate single sub-frame resource collection S, if it may be with transmission SCI X's
Single sub-frame resource overlapping reserved UE, then UE should directly exclude the single sub-frame resource；Alternatively, if it may be with transmission SCI X
The reserved single sub-frame resource overlappings of UE, moreover, the PSSCH-RSRP measured is more than a certain certain threshold, then UE should exclude the list
Sub-frame resources；Preferably, the value of the certain threshold should be higher than thatWherein prioRXFor in SCI X include Priority field
(Priority) value, prioTXIndicate the value of Priority field in the PSCCH of UE high levels instruction next sent,Indicate i-th in the SL-ThresPSSCH-RSRP-List-r14 defined in 3GPP standards 36.331V14.1.0
A SL-ThresPSSCH-RSRP, i=prioTX*8+prioRX+1.If the SCI X that UE is received are type three, UE is received
The PSSCH-RSRP for the PSSCH being scheduled to the laggard one step surveyings of SCI X, when UE carries out resource selection or gravity treatment, for candidate
Any one single sub-frame resource in single sub-frame resource collection S, if it may be with single sub-frame resource weight reserved in SCI X
Folded, moreover, the PSSCH-RSRP measured is more than a certain certain threshold, then UE should exclude the single sub-frame resource.Preferably, only when
UE work eNB configurations specific resources pond in just execute and operate as follows, for example, the specific resources pond is is allocated to 3GPP versions
The transmission resource pool of 14Mode 3UE.Steps are as follows：
In step 301, UE detects the SCI X that other UE are sent.
In this case, if UE is identical with existing SCI 1 in the SCI X that subframe m is received, UE can take with
Lower two methods, which determine, reserves resource：
Method one：UE thinks subframe m+j × G3+i × D3lOn " frequency resource position and comprising subchannel number " domain
Indicated resource is reserved, wherein i=0,1,2 ..., M-1, and the value of M is defined by standard or eNB configurations, and M can be just
It is infinite, need specified otherwise, the value of M can and D3lValue is related, such as works as D3lWhen being 100, the value of M is 1, if D3lFor
When p and p are less than 100, M is equal to 100/p；J=0 and/or 1, occurrence is defined by standard or eNB configurations；G3 is just to be passed in SCI 1
With the value for retransmitting spacer domain (Time gap between initial transmission and retransmission)；l
=0,1 ..., N-1 gathers { D30,D31,D32,…,D3N-1, in the value of each element rrc layer signaling or object are passed through by eNB
The instruction of layer signaling is managed, if it is this situation realization method one, which can indicate to be operated in mode's 3 in Current resource pond
The SPS periods corresponding number of sub-frames that the UE of Rel-14 may be used, if it is this situation realization method two, which can be with table
Show the SPS periods corresponding number of sub-frames that the UE for the Rel-14 for being operated in mode 3 in Current resource pond may be used, and sends
To the new version UE for being operated in mode 3 of the UE data received after needing.
Method two：If the corresponding subframe of value (Resource reservation) of resource reservation spacer domain in SCI X
Number is zero, then UE is determined according to method one reserves resource；If value (the Resource of resource reservation spacer domain in SCI X
Reservation) corresponding number of sub-frames be more than zero, it is believed that on subframe m+j × G3+i × D3 " frequency resource position and comprising
Subchannel number " resource indicated by domain is reserved, the value of wherein i=0,1,2 ..., M-1, M are defined by standard or eNB matches
It sets, and M can be just infinite, need specified otherwise, the value of M can be related to D3 values, such as when D3 is 100, M's
Value is 1, if D3 is p and p when being less than 100, M is equal to 100/p；J=0 and/or 1, occurrence is defined by standard or eNB configurations；
G3 is just to pass and retransmit spacer domain (Time gap between initial transmission and in SCI 1
Retransmission value), D3 are that the value (Resource reservation) of resource reservation spacer domain in SCI X is corresponding
Number of sub-frames.
If the SCI X and existing SCI 1 that UE is received in subframe m are not exactly the same, such as the domains that include SCI X and every
The bit number and SCI 1 in one domain be identical but some or certain specific bits in reserved bit domain are 1, then UE thinks subframe m+j
The resource indicated by " frequency resource position and comprising subchannel number " domain on × G4+D4 is reserved, j=0 and/or 1, tool
Body value is defined by standard or eNB configurations；G4 is just to pass and retransmit spacer domain (Time gap between initial in SCI X
Transmission and retransmission) value, D4 be SCI X in resource reservation spacer domain value (Resource
Reservation) corresponding number of sub-frames.
In step 302, if SCI X are type two, for any one of set S single sub-frame resources Rx,yIf
There are a variable j ∈ 0,1 ..., Cresel- 1 } so that single sub-frame resourceWith the reserved resource indicated in SCI X
Overlapping, wherein CreselIntend to reserve the number of resource, P after indicating UE resource selections or gravity treatmentrsvp_TXIndicate the instruction of UE high levels
Determine the resource reservation interval assumed when available candidate single sub-frame resource, then UE in resource selection or gravity treatment by single sub-frame resource
Rx,yIt is excluded from S.Alternatively, for any one of set S single sub-frame resources Rx,y, there are a variable j ∈ 0,1 ...,
Cresel- 1 } so that single sub-frame resourceWith the reserved resource overlapping indicated in SCI X, wherein CreselIndicate UE resources
The number of reserved resource, P are intended after selection or gravity treatmentrsvp_TXWhen indicating the determination available candidate single sub-frame resource of UE high levels instruction
It is assumed that resource reservation interval, if including the value prio of Priority field (Priority) in SCI XRXMore than a certain particular value,
Then UE in resource selection or gravity treatment by single sub-frame resource Rx,yIt is excluded from S.Alternatively, for any one of set S lists
Frame resource Rx,y, there are variable j ∈ { 0, a 1 ..., Cresel- 1 } so that single sub-frame resourceIt is indicated in SCI X
Reserved resource overlapping, wherein CreselIntend to reserve the number of resource, P after indicating UE resource selections or gravity treatmentrsvp_TXIndicate UE
The resource reservation interval assumed when the determination available candidate single sub-frame resource of high level instruction, if UE measures SCI X scheduling
The PSSCH-RSRP of PSSCH, and the value of the PSSCH-RSRP measured is more thanOrWherein
prioTXIndicate that the value of Priority field in the PSCCH of UE high levels instruction next sent, Δ are the value that eNB is configured or is pre-configured,
Tha,bIndicate i-th of SL- in the SL-ThresPSSCH-RSRP-List-r14 defined in 3GPP standards 36.331V14.1.0
ThresPSSCH-RSRP, wherein i=a*8+b+1, then UE in resource selection or gravity treatment by single sub-frame resource Rx,yIt is arranged from S
It removes.
In this case, if SCI X are type three, UE should measure the PSSCH-RSRP of the PSSCH of SCI X scheduling,
For any one of set S single sub-frame resources Rx,y, there are variable j ∈ { 0, a 1 ..., Cresel- 1 } so that single sub-frame
ResourceWith the reserved resource overlapping indicated in SCI X, wherein CreselIntend in advance after indicating UE resource selections or gravity treatment
Stay the number of resource, Prsvp_TXBetween the resource reservation assumed when the determination available candidate single sub-frame resource for indicating the instruction of UE high levels
Every if the value of the PSSCH-RSRP measured is more thanWherein prioTXIndicate the following transmission of UE high levels instruction
PSCCH in Priority field value,Indicate the SL- defined in 3GPP standards 36.331V14.1.0
I-th of SL-ThresPSSCH-RSRP in ThresPSSCH-RSRP-List-r14, wherein i=prioTX*8+prioRX+ 1,
Then UE in resource selection or gravity treatment by single sub-frame resource Rx,yIt is excluded from S.
UE can exclude the resource in set S further according to the mode defined in 3GPP versions 14.
UE randomly chooses a single sub-frame resource for data transmission in remaining resource.
In step 303, UE sends PSCCH in the corresponding PSCCH resources of single sub-frame resource chosen, and in the list chosen
PSSCH is sent in sub-frame resources.
For being operated in the UE of mode 3, when sending PSCCH, the value of Priority field in PSCCH can be set as low
In the value of the priority of high level instruction, specifically, if the priority of high-rise instruction is pr, it is preferential in the PSCCH that UE is sent
The value in grade domain could be provided as pr- Δs, and wherein Δ is particular value, is configured by eNB, standard definition or pre-configuration.Pass through this side
Formula can preferably protect the UE for being operated in mode 3.
Situation three
In situation three, SCI X may be type one, type two or type three, if the SCI X that UE is received are type one
Or type two, then after UE receives SCI X, UE can be measured further by the PSSCH-RSRP of the SCI X PSSCH dispatched, UE
Carry out resource selection or when gravity treatment, for any one single sub-frame resource in candidate single sub-frame resource collection S, if its with
The single sub-frame resource overlapping reserved in SCI X, then UE should directly exclude the single sub-frame resource；Alternatively, if its with it is pre- in SCI X
The single sub-frame resource overlapping stayed, moreover, the PSSCH-RSRP measured is more than a certain certain threshold, then UE should exclude single sub-frame money
Source.If the SCI X that UE is received are type three, UE receives the scheduled PSSCH's of the laggard one step surveyings of SCI X
When PSSCH-RSRP, UE carry out resource selection or gravity treatment, any one single sub-frame in candidate single sub-frame resource collection S is provided
Source, if it is Chong Die with the single sub-frame resource reserved in SCI X, moreover, the PSSCH-RSRP measured is more than a certain certain threshold,
Then UE should exclude the single sub-frame resource.Steps are as follows：
In step 401, UE detects SCI X.
In this case, if the SCI X that UE is received in subframe m are type one, UE determines the side for being reserved resource
Formula and situation one are identical, and which is not described herein again.If the SCI X that UE is received in frame m are type two or type three, UE is determined
Mode and the situation two for being reserved resource are identical, and which is not described herein again.
In step 402, if SCI X are type one, UE should be excluded in the way of in embodiment one in set S and
The SCI X reserve the single sub-frame resource of resource overlapping；If SCI X are type two or type three, UE should be according to embodiment two
In mode exclude to reserve the Chong Die single sub-frame resource of resource with the SCI X in set S.Here it repeats no more.UE can be into
One step excludes the resource in set S in the way of defined in 3GPP versions 14.
UE randomly chooses a single sub-frame resource for data transmission in remaining resource.
In step 403, UE sends PSCCH in the corresponding PSCCH resources of single sub-frame resource chosen, and in the list chosen
PSSCH is sent in sub-frame resources.
Situation four
In situation four, UE is operated in 3 patterns of Mode, and SCI X are type two.UE is in the resource for receiving the distribution of eNB signalings
When changing, for example, the data generation period or sub-frame offset of SCIX instructions change, UE is at least in eNB instructions
Channel Detection, and selection or gravity treatment resource according to testing result are executed in resource or on part resource.Steps are as follows：
UE starts to execute Channel Detection after the bypass resource distribution instruction (i.e. DCI 5A) for receiving eNB transmissions.
According to this situation realization method one, if the single sub-frame resource of eNB distribution is Rx,y, then UE should detect single sub-frame money
SourceWherein PstepIndicate the basic resources reservation period in Current resource pond, j=1, the value of 2,3 ... I1, I1 are by marking
Certainly adopted, eNB configurations or pre-configuration indicate maximum detection cycle, such as I1=10 or 1 or 5.
According to this situation realization method two, if the single sub-frame resource of eNB distribution is Rx,y, then UE should detect single sub-frame money
SourceThe value of wherein j=1,2,3 ... I2, I2 are defined by standard, eNB configurations or pre-configuration, indicate maximum detection week
Phase, such as I2=10 or 1 or 5.Wherein Prsvp_TXFor the UE current resource reservation periods, which is indicated by eNB.
According to this situation realization method three, if the single sub-frame resource of eNB distribution is Rx,y, then UE should detect single sub-frame money
Source Rx,y+j×Pm, the value of wherein j=1,2,3 ... I3, I3 defines by standard, eNB configurations or is pre-configured, and indicates maximum detection week
Phase, such as I2=10 or 1 or 5；Pm is the least resource reservation period supported in Current resource pond.
According to this situation realization method four, if the single sub-frame resource of eNB distribution is Rx,y, then UE should detect subframe y.UE
Subframe y receive SCI X and this SCI X scheduling resource or reserved resource withJ=1,2,3 ...
It is overlapped, and the PSSCH-RSRP of the resource of SCI X scheduling is more than thresholding, then resourceIt is unavailable.Alternatively,
UE is also based on the S-RSSI that subframe y is measured, and compared with certain threshold, judges resourceWhether can be used.It is above-mentioned
Certain threshold is defined by standard, eNB configurations or pre-configuration.Wherein Prsvp_TXFor the UE current resource reservation periods, the value is by eNB
Instruction.
According to the present embodiment realization method five, if the single sub-frame resource of eNB distribution is Rx,y, then UE should detect subframe y+
I4×Prsvp_TXThe value of subframe before, I4 is defined by standard, and eNB configurations or pre-configuration indicate maximum detection cycle, such as I4
=10 or 1 or 5, to judge resourceJ=0,1,2 ... whether can be used.If receiving SCIX simultaneously
And this SCIX scheduling resource or reserved resource withOverlapping, and the money of SCI X scheduling
The PSSCH-RSRP in source is more than thresholding, then resourceIt is unavailable.Alternatively, UE is also based on subframe y+I4
×Prsvp_TXThe S-RSSI of measurement before, and compared with certain threshold, judge resourceWhether can be used.
For example, to Prsvp_TX=k × Pstep, k=1,1/2,1/5, S-RSSI is in resourceJ=0,1 ... I4-1 is measured
S-RRSI average value；To Prsvp_TX=k × Pstep, k>1, S-RSSI is in resourceJ=0,1 ... (I4×
Prsvp_TX)/PstepThe average value of -1 S-RRSI measured.Above-mentioned certain threshold is defined by standard, eNB configurations or pre-configuration.Wherein
Prsvp_TXFor the UE current resource reservation periods, which is indicated by eNB.
According to the present embodiment realization method six, when UE be expected base station will variation configuration SPS resources period or son
When vertical shift, UE starts to execute detection operation.For example, UE has sent the information that business changes to base station, for example, mechanical periodicity,
Or the variation etc. of the sub-frame offset generated within the period；Or base station has sent instruction information to UE, notice UE may change
Become period or the sub-frame offset of SPS resources.After UE receives the SCI X of base station, it is assumed that eNB distribution single sub-frame resource be
Rx,y, the subframe of the detection before UE subframes y simultaneously judges resourceJ=1,2 ... whether can be used.Above-mentioned j is taken
Be worth range in any one j value, if receive SCIX and this SCIX scheduling resource or reserved resource withIt is overlapped, and the PSSCH-RSRP of the resource of SCIX scheduling is more than thresholding, then resourceIt can not
With.Alternatively, UE is also based on the S-RSSI of the measurement before subframe y, and compared with certain threshold, judge resourceWhether can be used.For example, to Prsvp_TX=k × Pstep, k=1,1/2,1/5, S-RSSI is in resource
J=0,1 ... the average value of 1 S-RRSI measured；To Prsvp_TX=k × Pstep, k>1, S-RSSI is in resourcej
=0,1 ... the average value of the S-RRSI of measurement.Above-mentioned certain threshold is defined by standard, eNB configurations or pre-configuration.Wherein
Prsvp_TXFor the UE current resource reservation periods, which is indicated by eNB.
In order to support aforesaid operations, UE that should continue in all of each subframe sent in resource pool currently selected
It executes Channel Detection in resource or when UE data generation periods change starts to execute Channel Detection, and by Channel Detection
As a result eNB is reported.Preferably, if subframe n meets at least one of the following conditions, UE will be in channel detection result in subframe n
Report eNB：
Condition one：UE meets bypass reporting cached state (BSR) condition, and the corresponding business of bypass BSR in subframe n
The V2X business for being intended to send in Current resource pond for UE.
Condition two：The channel detection result that subframe n meets eNB instructions reports configuration, i.e. (n- △) mod P=0, wherein △
It is channel detection result report cycle to report sub-frame offset, P for the eNB channel detection results indicated, and UE is indicated according to eNB, in advance
Configuration or standard define the value of determining P.
Condition three：After subframe n is subframe x, for UE first there are the subframe of uplink scheduling resource, wherein subframe x is UE
The channel detection result that the last time receives eNB reports the subframe of instruction.The channel detection result of the eNB reports instruction can
To be rrc layer signaling, MAC layer signaling or physical layer signaling.
Preferably, the channel detection result that UE is reported should include son letter some or all of in subframe range [n+a, n+b]
Channel conditions on road, for the subchannel that any one is reported, channel conditions include at least one in following information：Son
Average S-RSSI on channel, the PSSCH-RSRP in subchannel reserve the priority for the PSSCH that the UE of the subchannel is sent,
Reserve the resource reservation period of UE etc. of the subchannel.For example, if UE reporting channels testing result is triggered by condition one, a
It is realized and is determined by UE with the value of b, and the value for meeting b should meet the delay requirement of UE current business；If UE reporting channels are examined
It surveys result to be triggered by condition two or condition three, then a=1, b=100.Because eNB sends the subframe of DCI 5A and the DCI 5A refer to
It should be at least spaced 4ms between subframe where PSCCH the and PSSCH resources shown, therefore, preferably, if UE reporting channels are examined
It surveys result to be triggered by condition two or condition three, in order to provide timely channel detection result, UE reporting channel testing results to eNB
Period P should be less than b, for example, if b is 100, and channel detection result is fed back by physical layer signaling, then the value of P should be little
In 96；If b is 100, and channel detection result is fed back by high-level signaling, then the value of P should be not more than X, and wherein X is less than 96,
Such as X=95 or 94.
Preferably, UE should further report the global positioning system of present position in reporting channel testing result
(GPS) coordinate.
If channel sensitive manner is realization method one, and do not find that UE occupies single sub-frame resource in being detected at I1 timesJ=1,2,3 ... I1, then UE is single sub-frame resourceK=1,2 ..., as send resource into
Row data transmission.
If channel sensitive manner is realization method two, and do not find that UE occupies single sub-frame resource in being detected at I2 timesJ=1,2,3 ... I2, then UE is single sub-frame resourceK=1,2 ..., it is provided as sending
Source carries out data transmission.
If channel sensitive manner is realization method three, and single sub-frame resource Rx,y+j×PmIt is not occupied by other UE, j=
1,2,3 ... I3, then UE determine single sub-frame resource Rx,y+I3×Pm+k×Pm, k=1,2 ..., carry out data transmission as resource is sent.
If channel sensitive manner is realization method four, and single sub-frame resource Rx,yIt is not occupied by other UE, then UE choosings handle is selected
Single sub-frame resourceJ=1,2,3 ..., carry out data transmission as resource is sent.
If channel sensitive manner is realization method five, and single sub-frame resourceJ=0,1,
2 ..., it is not occupied by other UE, then UE choosings handle selects single sub-frame resourceData biography is carried out as resource is sent
It is defeated.
If channel sensitive manner is realization method six, and single sub-frame resource Rx,yIt is not occupied by other UE, then UE choosings handle is selected
Single sub-frame resourceJ=1,2,3 ..., carry out data transmission as resource is sent.
UE sends PSCCH in the corresponding PSCCH resources of single sub-frame resource chosen, and is sent out in the single sub-frame resource chosen
Send PSSCH.
Situation five
In situation five, UE is operated in 3 patterns of Mode, and under given conditions, UE is by the channel detection result in Current resource pond
ENB is reported, to assist eNB to carry out resource allocation.The UE for working in mode 3 performs reception operation on resource pool, for example,
It receives the V2X information of other UE and measures CBR, so UE is observed that the service distribution on resource pool, to which UE can know
Those resources are busy in road resource pool, those resources are more idle.To, mode 3 UE can to base station report about
The information of resource pool service distribution, to which assistant base station dispatches the data transmission of mode 3UE in more idle resource, from
And reduce the influence to 4 users of mode.For example, above-mentioned resource pool service distribution information can indicate the period of idling-resource
And sub-frame offset.The present invention does not limit the specific method of the information of instruction resource pool service distribution.UE is receiving eNB transmissions
After bypassing resource distribution instruction (i.e. DCI 5A), UE directly sends PSCCH and PSSCH in the resource of DCI 5A instructions, alternatively,
According to circumstances the method described in four determines transmission resource to UE.
Preferably, a kind of method that UE report testing result assistant base stations carry out the resource allocation of mode 3 is described below.
Steps are as follows：
The first step, if subframe n meets at least one of the following conditions, UE reports channel detection result in subframe n
eNB：
Condition one：UE meets bypass reporting cached state (BSR) condition, and the corresponding business of bypass BSR in subframe n
The V2X business for being intended to send in Current resource pond for UE.
Condition two：The channel detection result that subframe n meets eNB instructions reports configuration, i.e. (n- △) mod P=0, wherein △
It is channel detection result report cycle to report sub-frame offset, P for the eNB channel detection results indicated, and UE is indicated according to eNB, in advance
Configuration or standard define the value of determining P.
Condition three：After subframe n is subframe x, for UE first there are the subframe of uplink scheduling resource, wherein subframe x is UE
The channel detection result that the last time receives eNB reports the subframe of instruction.The channel detection result of the eNB reports instruction can
To be rrc layer signaling, MAC layer signaling or physical layer signaling.
Preferably, the channel detection result that UE is reported should include son letter some or all of in subframe range [n+a, n+b]
Channel conditions on road, for the subchannel that any one is reported, channel conditions include at least one in following information：Son
Average S-RSSI on channel, the PSSCH-RSRP in subchannel reserve the priority for the PSSCH that the UE of the subchannel is sent,
Reserve the resource reservation period of UE etc. of the subchannel.For example, if UE reporting channels testing result is triggered by condition one, a
It is realized and is determined by UE with the value of b, and the value for meeting b should meet the delay requirement of UE current business；If UE reporting channels are examined
It surveys result to be triggered by condition two or condition three, then a=1, b=100.Because eNB sends the subframe of DCI 5A and the DCI 5A refer to
It should be at least spaced 4ms between subframe where PSCCH the and PSSCH resources shown, therefore, preferably, if UE reporting channels are examined
It surveys result to be triggered by condition two or condition three, in order to provide timely channel detection result, UE reporting channel testing results to eNB
Period P should be less than b, for example, if b is 100, and channel detection result is fed back by physical layer signaling, then the value of P should be little
In 96；If b is 100, and channel detection result is fed back by high-level signaling, then the value of P should be not more than X, and wherein X is less than 96,
Such as X=95 or 94.
Preferably, UE should further report the global positioning system of present position in reporting channel testing result
(GPS) coordinate.
Second step, UE is after the bypass resource distribution instruction (i.e. DCI 5A) for receiving eNB transmissions, in DCI 5A instructions
Method in resource or according to circumstances four, which determines to send, sends PSCCH and PSSCH in resource.
By above method, the UE of work and Mode 3 determine the resource occupation in Current resource pond by Channel Detection
With resource reservation situation, after testing result is reported eNB by the UE, eNB can be by the relatively high scheduling of resource of channel quality
To the data transmission of mode 3UE, to reduce influencing each other between 4 user of Mode 3 and mode.
Fig. 2 is the user that resource selection or reselecting method are executed during vehicle according to the ... of the embodiment of the present invention communicates extraneous V2X
The block diagram of equipment (UE).With reference to figure 2, which includes：Detection module 21, resource selection or gravity treatment module 22 and sending module
23。
Detection module is used to detect the PSCCH that other UE are sent.Detection module can be in the transmission resource that UE is currently selected
SCI X are detected in pond in all PSCCH resources, or only in the part PSCCH resources for the transmission resource pool that UE is currently selected
SCI X are detected, such as determine the position of the part PSCCH resources by receiving the signaling of eNB.
Resource selection or gravity treatment module are configured as in the nonoverlapping list of single sub-frame resource reserved with the PSCCH of detection
Single sub-frame resource is selected in sub-frame resources.
According to one embodiment of present invention, if the SCI X detected be specific format, with detection
Single sub-frame resource is selected in the nonoverlapping single sub-frame resource of single sub-frame resource reserved PSCCH.
According to another embodiment of the invention, if the SCI X detected are specific PSCCH formats, and SCI X
In include Priority field (Priority) value prioRXMore than particular value, then provided in the single sub-frame reserved with the PSCCH of detection
Single sub-frame resource is selected in the nonoverlapping single sub-frame resource in source.
For example, the specific PSCCH formats are the SCI 1 defined in 3GPP versions 14, or determine with 3GPP versions 14
PSCCH formats different adopted SCI 1, or it is identical as the bit number of SCI 1 defined in 3GPP versions 14, and each domain
Meaning is identical, but one or more of reserved bit domain bit is 1.
According to still another embodiment of the invention, resource selection or gravity treatment module further measure scheduled in SCI X
The bypass Reference Signal Received Power (PSSCH-RSRP) of PSSCH, if the PSSCH-RSRP be higher than certain threshold, with
Single sub-frame resource is selected in the nonoverlapping single sub-frame resource of single sub-frame the resource reserved PSCCH of detection.
Sending module sends physical bypass in the single sub-frame resource chosen and shares channel PSSCH.
Those skilled in the art of the present technique are appreciated that the present invention includes being related to for executing in operation described herein
One or more equipment.These equipment can specially be designed and be manufactured for required purpose, or can also include general
Known device in computer.These equipment have the computer program being stored in it, these computer programs are selectively
Activation or reconstruct.Such computer program can be stored in equipment (for example, computer) readable medium or be stored in
It e-command and is coupled to respectively in any kind of medium of bus suitable for storage, the computer-readable medium includes but not
Be limited to any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read-Only Memory, only
Read memory), RAM (Random Access Memory, immediately memory), EPROM (Erasable Programmable
Read-Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically Erasable
Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or light card
Piece.It is, readable medium includes by any Jie of equipment (for example, computer) storage or transmission information in the form of it can read
Matter.
Those skilled in the art of the present technique be appreciated that can with computer program instructions come realize these structure charts and/or
The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology is led
Field technique personnel be appreciated that these computer program instructions can be supplied to all-purpose computer, special purpose computer or other
The processor of programmable data processing method is realized, to pass through the processing of computer or other programmable data processing methods
Device come execute structure chart and/or block diagram and/or flow graph disclosed by the invention frame or multiple frames in specify scheme.
Those skilled in the art of the present technique are appreciated that in the various operations crossed by discussion in the present invention, method, flow
Steps, measures, and schemes can be replaced, changed, combined or be deleted.Further, each with having been crossed by discussion in the present invention
Other steps, measures, and schemes in kind operation, method, flow may also be alternated, changed, rearranged, decomposed, combined or deleted.
Further, in the prior art to have and step, measure, the scheme in various operations, method, flow disclosed in the present invention
It may also be alternated, changed, rearranged, decomposed, combined or deleted.
The above is only some embodiments of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of vehicle is to the resource selection or reselecting method of the user equipment (UE) execution in extraneous V2X communications comprising step：
Detect the physical bypass control channel PSCCH that other UE are sent；
Single sub-frame resource is selected in the nonoverlapping single sub-frame resource of single sub-frame resource reserved with the PSCCH of detection；And
Physical bypass is sent in the single sub-frame resource chosen shares channel PSSCH.
2. resource selection as described in claim 1 or reselecting method, wherein described in the single sub-frame reserved with the PSCCH of detection
The step of selection single sub-frame resource, further includes in the nonoverlapping single sub-frame resource of resource：
Measure the bypass Reference Signal Received Power PSSCH-RSRP of the PSSCH scheduled in the PSCCH detected；And
It is nonoverlapping in the single sub-frame resource reserved with the PSCCH of detection if the PSSCH-RSRP is higher than certain threshold
Single sub-frame resource is selected in single sub-frame resource.
3. resource selection as described in claim 1 or reselecting method, wherein described in the single sub-frame reserved with the PSCCH of detection
The step of selection single sub-frame resource, further includes in the nonoverlapping single sub-frame resource of resource：
If the PSCCH detected is specific format, in the nonoverlapping list of single sub-frame resource reserved with the PSCCH of detection
Single sub-frame resource is selected in sub-frame resources.
4. resource selection as claimed in claim 3 or reselecting method, wherein the specific format is Bypass Control information lattice
Formula 1SCI 1.
5. resource selection as claimed in claim 3 or reselecting method, wherein the specific format is the lattice different from SCI 1
Formula.
6. resource selection as claimed in claim 3 or reselecting method, wherein in reserved bit domain in the specific format
One or more bits be 1.
7. resource selection as described in claim 1 or reselecting method, described in the single sub-frame resource reserved with the PSCCH of detection
The step of selection single sub-frame resource, further includes in nonoverlapping single sub-frame resource：
If the value for the Priority field for including in the PSCCH detected is more than particular value, in the list reserved with the PSCCH of detection
Single sub-frame resource is selected in the nonoverlapping single sub-frame resource of sub-frame resources.
8. resource selection as described in claim 1 or reselecting method, wherein in the part of the transmission resource pool currently selected
The PSCCH that other UE are sent is detected in PSCCH resources.
9. resource selection as claimed in claim 8 or reselecting method, wherein UE are true by the signaling for receiving evolution node B eNB
The position of the fixed part PSCCH resources.
10. a kind of vehicle executes the user equipment (UE) of resource selection or reselecting method in being communicated to extraneous V2X comprising：
Detection module, the physical bypass control channel PSCCH sent for detecting other UE；
Resource selection or gravity treatment module are configured as in the nonoverlapping single sub-frame of single sub-frame resource reserved with the PSCCH of detection
Single sub-frame resource is selected in resource；And
Sending module sends the shared channel PSSCH of physical bypass in the single sub-frame resource chosen.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18772610.4A EP3574694A4 (en) | 2017-03-24 | 2018-03-23 | Resource selection method in vehicle to everything communication and apparatus therefore |
| PCT/KR2018/003478 WO2018174661A1 (en) | 2017-03-24 | 2018-03-23 | Resource selection method in vehicle to everything communication and apparatus therefore |
| US16/490,408 US11102631B2 (en) | 2017-03-24 | 2018-03-23 | Resource selection method in vehicle to everything communication and apparatus therefore |
| US17/444,458 US11659371B2 (en) | 2017-03-24 | 2021-08-04 | Resource selection method in vehicle to everything communication and apparatus therefore |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182401 | 2017-03-24 | ||
| CN2017101824017 | 2017-03-24 | ||
| CN201710304754 | 2017-05-03 | ||
| CN201710304754X | 2017-05-03 |
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| WO2020088227A1 (en) * | 2018-11-02 | 2020-05-07 | 北京展讯高科通信技术有限公司 | Sidelink transmission method, and terminal and computer-readable storage medium |
| WO2020088609A1 (en) * | 2018-11-01 | 2020-05-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | End-to-end data transmission method and device |
| CN111130723A (en) * | 2018-10-31 | 2020-05-08 | 展讯通信（上海）有限公司 | Method and device for realizing flexible feedback in V2X transmission and user equipment |
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| CN111355567A (en) * | 2018-12-20 | 2020-06-30 | 华硕电脑股份有限公司 | Method and apparatus for handling sidelink feedback collision in wireless communication system |
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