CN109391976A

CN109391976A - The method and user equipment of resource allocation

Info

Publication number: CN109391976A
Application number: CN201810864506.5A
Authority: CN
Inventors: 王轶; 张世昌; 李迎阳
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecom R&D Center; Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2017-08-10
Filing date: 2018-08-01
Publication date: 2019-02-26

Abstract

The present invention provides a kind of method of resource allocation and user equipment, the following steps are included: configuring one or more resource pool in the method for the resource allocation, UE carries out perception detection to each resource pool of configuration, obtains testing result；Select a single time quantum resource as transmission resource in the set of the single time quantum resource composition of residue for each resource pool that the testing result includes；Its data to be transmitted packet carried is sent through the transmission resource；Wherein, the single time quantum resource is to be made of N number of time quantum and M PRB for sending the running time-frequency resource of same data packet, N > 1, M >=1.The present invention realizes the high efficiency of resource allocation, and then improves the transmission performance of UE.

Description

The method and user equipment of resource allocation

Technical field

The present invention relates to fields of communication technology, specifically, the present invention relates to a kind of methods of resource allocation and user to set It is standby.

Background technique

In long term evolution (LTE) system of 3GPP standardization body, the communication of UE terminal and base station is not only supported (referred to as Cellular communication), LTE system also supports V2X (Vehicle to Vehicle/Pedestrain/Infrastructure/ Network it) communicates.In V2X system, UE sends dispatching distribution (SA), the running time-frequency resource and coding of designation date channel occupancy The information such as modulation system (MCS)；Also, the data channel transmitting data that UE is dispatched in above-mentioned SA.To LTE D2D (Device-to-Device)/V2X system, above-mentioned SA are also known as physical bypass control channel (PSCCH), and data channel is also known as Channel (PSSCH) is shared for physical bypass.The collection of PSCCH resource is collectively referred to as PSCCH resource pool, and the collection of PSSCH resource is collectively referred to as PSSCH resource pool.

On a carrier wave of V2X system, the subframe that removal is occupied for V2X synchronizing channel, and remove some reserved sons Frame to make a System Frame Number (SFN) in the period remaining number of sub-frames be the bit map length L for configuring resource pool_bitmap's Integral multiple, TDD (Time Division Duplexing, time division duplex) system also need to remove all downlink subframes, remaining subframe Set is denoted as It is the logical number of remaining subframe.GatheringThe upper length that is used for is L_bitmapBit mapTo define resource pool.Work as b_k'=1 and K'=kmodL_bitmapWhen, subframeBelong to the resource pool, as shown in Figure 1.So the resource pool of V2X is logic-based subframe Definition.

As shown in Fig. 2, PSCCH resource pool and PSSCH resource pool occupy identical sub-frame set.PSCCH can be with its tune One PSSCH of degree is located at the same subframe.One PSCCH is that fixation is mapped on 2 PRB.The partition size of frequency resource It is subchannel (sub-channel), a sub-channels include continuous PRB, and PRB number is configured with high-level signaling.One The resource of a equipment, which can be, occupies one or more continuous subchannel.It is continuous that PSCCH and PSSCH can be occupancy PRB.Two minimum PRB of frequency are for carrying in one or more continuous subchannel of the resource occupation of an equipment PSCCH, and other PRB are for carrying PSSCH.The PRB of the PRB and PSSCH of PSCCH can also be discontinuous.At this moment, it can be The position starting PRB of PSCCH resource pool and PSSCH resource pool is respectively configured.PSSCH resource pool is still using subchannel as granularity Distribute resource.To an equipment, the minimum sub-channel index of the PSSCH of the index and occupancy of the PSCCH occupied is equal.

Data transmission to UE, each data can be repetition and send K times, correspondingly need to reserve K resource, K is big In or be equal to 1, to avoid because the limitation of either-way operation causes a part of equipment that can not receive this data；UE can be by Above-mentioned K resource is periodically reserved according to certain prepared separation, so as to transmit multiple data.According in a detection window Detection information in mouthful, UE can choose its above-mentioned K resource that can be occupied, and continuously reserve C period.A kind of detection money The method in source is the PSSCH that above-mentioned PSCCH scheduling is obtained based on the decoding of the PSCCH to other UE, so as to measure pair The reception power P SSCH-RSRP of UE is answered, to judge that resource accounts for based on the prepared separation in above-mentioned reception power and PSCCH With and/or it is reserved.The method of another kind detection resource is to judge resource occupation based on energy S-RSSI is received and/or reserve. In summary two methods, equipment can avoid the identical resource with other equipment occupancy from being transmitted as far as possible.

3GPP normal structure is standardizing the 5th generation (5G) mobile communication, including LTE further enhance and New access network technology (NR).Correspondingly, the performance of V2X can be further enhanced in 5G system.One side for needing to enhance To being sent and received based on wave beam (beam).For example, when V2X work in higher frequency band when, can by send and/or The wave beam forming of receiving end improves transmission and/or range of receiving, the interference to non-reception object terminal is reduced, to improve V2X Performance.The terminal (hereinafter, referred to as UE) of above-mentioned V2X may include vehicle, pedestrian and roadside unit (RSU) etc..RSU's Position can be fixed, and the position of vehicle and pedestrian is variable, and the position of vehicle can be it is fast-changing.In reality In system, it may only be based on wave beam when sending, and still use traditional omnidirectional antenna when receiving, as shown in Fig. 3 (a), It may also only be based on wave beam when receiving, and still use traditional omnidirectional antenna when sending, as shown in Fig. 3 (b), Huo Zhe Wave beam is based on when sending and receiving, as shown in Fig. 3 (c), and the receipts of possible difference UE or the beam capabilities of hair are different , such as the wave beam number difference received or sent out.How for the effective resource allocation of above-mentioned UE progress, and how to be based on wave Shu Jinhang, which sends and receives, to be a problem to be solved.

Summary of the invention

The purpose of the present invention aims to solve at least one of above-mentioned technological deficiency, in particular how realizes efficient resource point The problem of matching, and then improving the transmission performance of UE.

The present invention provides a kind of method of resource allocation and user equipmenies, in the side of resource allocation provided by the present invention In method, include the following steps:

Perception detection is carried out to each resource pool of configuration, obtains testing result, includes each resource in the testing result The set of the single time quantum resource composition of the residue in pond；

A single time quantum is selected in the set of the single time quantum resource composition of residue of each resource pool Resource is as transmission resource；

Its data to be transmitted packet carried is sent through the transmission resource；

Wherein, the single time quantum resource is to be made of N number of time quantum and M PRB for sending same number According to the running time-frequency resource of packet, N > 1, M >=1.

Preferably, at least two resource pools are configured respectively according to the instruction of a plurality of signaling；At least the two of the configuration Resource in a resource pool is independent；Or, meeting predefined relationship between at least two resource pools.

Preferably, a resource pool at least two resource pools is configured according to a signaling instruction, and this is extremely Other resource pools in few two resource pools are determined according to this resource pool and preset relation.

Preferably, if being configured with multiple transmission resource pools, there is the UE for sending beam capabilities, in multiple transmission resource pools It is interior, data can be sent with different transmission wave beams.In the same transmission resource pool, number is sent with identical transmission wave beam According to.

Preferably, if being configured with multiple reception resource pools, there is the UE for receiving beam capabilities, in multiple reception resource pools It is interior, data can be received with different reception wave beams.In the same reception resource pool, number is received with identical reception wave beam According to.

Preferably, each resource pool of described pair of configuration carries out perception detection, obtains testing result, comprising:

The physical bypass control channel PSCCH that other UE transmission is received in the perception detection window for sending resource pool, according to The PSCCH determines that physical bypass shares the running time-frequency resource and priority of channel PSSCH；

PSSCH-RSRP measurement is done to the PSSCH based on running time-frequency resource, is determined according to the priority of each PSSCH each Whether the RSRP measured value of PSSCH is higher than predefined thresholding；

If the RSRP measured value of the PSSCH is higher than predefined thresholding, and corresponding running time-frequency resource is located at transmission money In the resource selection window in source pond, then the running time-frequency resource is excluded；If the remaining single time in addition to the running time-frequency resource The quantity of element resources is less than preset threshold, then improves the predefined thresholding, exclude running time-frequency resource again, until remaining list The quantity of one time element resources meets the preset threshold.

Preferably, the running time-frequency resource of the exclusion is on each resource pool with N number of time quantum and M PRB The single time quantum resource for sending same data packet constituted is granularity.

Preferably, the running time-frequency resource of the exclusion is to be constituted in each resource pool with M PRB of a time quantum Time frequency domain resource be granularity.

Preferably, if provided in remaining running time-frequency resource comprising the time-frequency of single time quantum resource granularity can not be formed The running time-frequency resource is removed in source.

Preferably, when selection one is single in the set that the single time quantum resource in each resource pool forms Between element resources as send resource, comprising:

Calculate each average received energy S-RSSI for sending remaining single time quantum resource in resource pool；

The single time quantum resource of preset quantity is selected according to the ascending sequence of each S-RSSI value；

A single time quantum resource is chosen in the single time quantum resource of the preset quantity as transmission money Source.

Preferably, N number of time quantum in the single time quantum resource has predefined pattern relationship.

Preferably, in N number of time quantum in the single time quantum resource head and the tail two time quantums time difference No more than preset time thresholding.

Preferably, further includes:

PSCCH and/or PSSCH is received in receiving resource pool；

Obtain N number of time quantum in the single time quantum resource for carrying the PSCCH and/or PSSCH.

Preferably, the frequency domain relationship of each time quantum in N number of time quantum is determined under following either cases:

N number of time quantum uses identical frequency domain resource；

N number of time quantum uses different frequency domain resources, and each frequency domain resource corresponding to N number of time quantum Positional relationship is to be pre-configured with；

Meet predefined pattern relationship between N number of time quantum.

Preferably, when N number of time quantum uses different frequency domain resources, the method also includes:

Detect the frequency domain resource position of each time quantum in N number of time quantum；

The position of the PSCCH in each time quantum is determined according to the frequency domain resource position.

Preferably, when being unsatisfactory for predefined pattern relationship between N number of time quantum, the method also includes:

Receive the PSCCH and/or PSSCH in N number of time quantum at least one time quantum；

Obtain the PSCCH and/or PSSCH of at least one other time quantum carried in the PSCCH time and/or The instruction information of frequency domain.

Preferably, by following at least one processing to transmit data packet；

According to the channel busy ratio CBR of the time quantum in each resource pool, the configured transmission in each resource pool is determined；

Calculate separately the maximum value of the resource occupation ratio CR and/or resource occupation ratio CR in each resource pool；

Determine the reserved resource for data packet transmission in each resource pool；

According to the channel busy ratio CBR and priority of each resource pool, it is determined whether lose reserved resource.

It is preferably based on wave beam and sends and/or receive data to be transmitted packet.

Preferably,

One group of UE, transmitted beam direction defers to same rule in corresponding each transmission resource pool；Or,

One group of UE, the received beam direction of institute defers to same rule in corresponding each reception resource pool.

Preferably, following any treatment process is determined according to type of service:

Configure resource pool；

Determine single time quantum resource；

Transmission resource is detected and selected based on perception；

It determines and sends and/or receive beam direction.

The present invention also provides a kind of user equipmenies, comprising:

First processing units obtain testing result, the detection knot for carrying out perception detection to each resource pool of configuration It include the set of the single time quantum resource composition of residue of each resource pool in fruit；

The second processing unit, for being selected in the set of the remaining single time quantum resource composition of each resource pool One single time quantum resource is as transmission resource；

Transmission unit, for sending its data to be transmitted packet carried through the transmission resource；

The high efficiency of resource allocation is realized through the invention, and then improves the transmission performance of UE.

The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description Obviously, or practice through the invention is recognized.

Detailed description of the invention

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, in which:

The resource pool indicating mode signal that Fig. 1 is LTE V2X in the prior art；

Fig. 2 is the resource schematic diagram of the PSSCH/PSCCH of LTE V2X in the prior art；

Fig. 3 a sends and receives schematic diagram one for the V2X UE's based on wave beam in the prior art；

Fig. 3 b sends and receives schematic diagram two for the V2X UE's based on wave beam in the prior art；

Fig. 3 c sends and receives schematic diagram three for the V2X UE's based on wave beam in the prior art；

Fig. 4 is the method flow schematic diagram of resource allocation provided by the invention；

Fig. 5 is the resource pool configuration schematic diagram one of the V2X UE based on wave beam in the present invention；

Fig. 6 is the resource pool configuration schematic diagram two of the V2X UE based on wave beam in the present invention；

Fig. 7 is the perception detection processing schematic diagram one of the V2X UE based on wave beam in the present invention；

Fig. 8 is the perception detection processing schematic diagram two of the V2X UE based on wave beam in the present invention；

Fig. 9 is the flow diagram of resource selection in the present invention；

Figure 10 is the schematic diagram of resource selection in the present invention；

Figure 11 is that PSSCH and/or PSCCH merges schematic diagram in the present invention；

Figure 12 is to send UE in the present invention and receive the beam direction schematic diagram of UE；

Figure 13 is the structural schematic diagram of user equipment in the present invention.

Specific embodiment

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 for explaining only the invention, and is not construed as limiting the claims.

Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.

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 term), there is meaning identical with the general understanding of 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 idealization or meaning too formal otherwise will not be used by specific definitions as here To explain.

Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal device " both include wireless communication The equipment of number receiver, only has the equipment of the wireless signal receiver of non-emissive ability, and including receiving and emitting hardware Equipment, have on bidirectional communication link, can carry out two-way communication reception and emit hardware equipment.This equipment It may include: honeycomb or other communication equipments, shown with single line display or multi-line display or without multi-line The honeycomb of device or other communication equipments；PCS (PerSonal CommunicationS Service, PCS Personal Communications System), can With combine voice, data processing, fax and/or communication ability；PDA (PerSonal Digital ASSiStant, it is personal Digital assistants), it may include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day It goes through and/or GPS (Global PoSitioning SyStem, global positioning system) receiver；Conventional laptop and/or palm Type computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its His equipment." terminal " used herein above, " terminal device " can be it is portable, can transport, be mounted on the vehicles (aviation, Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on Network termination, music/video playback terminal, such as can be PDA, MID (Mobile Internet Device, mobile Internet Equipment) and/or mobile phone with music/video playing function, it is also possible to the equipment such as smart television, set-top box.

In the present invention, by providing the method and user equipment of a kind of resource allocation, UE is provided in the hair based on wave beam Give and/or received situation under, more efficient execution resource selection, and carry out the transmission and reception of data, to guarantee to send UE Each desired direction can be covered, and receive UE to be properly received in a desired direction, and further The collision between UE is reduced, to improve the transmission performance of UE.

Specifically, in the present invention, providing a kind of method of resource allocation, as shown in Figure 4, comprising the following steps:

Step 401, perception detection is carried out to each resource pool of configuration and/or each group resource, obtains testing result.

Wherein, include in the testing result each resource pool residue single time quantum resource composition set.

In this step, when being configured to each resource pool, including following three kinds of configuration modes:

1) at least two resource pools are configured respectively according to the instruction of a plurality of signaling；At least two resources of the configuration Resource in pond is independent；Or, meeting predefined relationship between at least two resource pools.

2) resource pool at least two resource pools is configured according to the instruction of signaling, and this at least two Other resource pools in resource pool are determined according to this resource pool and preset relation.

3) at least one resource pool is configured according to the instruction of one or more of signalings；At least one of the configuration Meet predefined relationship between multiple resources in resource pool.

Specifically, each resource pool and/or each group resource to configuration carry out perception detection, testing result is obtained, comprising:

PSSCH-RSRP measurement is done to PSSCH based on running time-frequency resource, determines each PSSCH's according to the priority of each PSSCH Whether RSRP measured value is higher than predefined thresholding；

When excluding running time-frequency resource, according to following several granularities, comprising:

The running time-frequency resource of the exclusion is on each resource pool and/or each group resource with N number of time quantum and M The single time quantum resource for sending same data packet that a PRB is constituted is granularity；Or,

The running time-frequency resource of the exclusion is in each resource pool and/or each group resource with the M of a time quantum The time frequency domain resource that PRB is constituted is granularity；Or,

It, will be described if in remaining running time-frequency resource including the running time-frequency resource that can not form single time quantum resource granularity Running time-frequency resource removes.

Step 402, it is selected in the set of the single time quantum resource composition of residue of each resource pool and/or each group resource One single time quantum resource is as transmission resource.

Wherein, the single time quantum resource is to be made of N number of time quantum and M PRB for sending same number According to the running time-frequency resource of packet, N > 1, M >=1.When the time difference of two time quantums of head and the tail is no more than default in N number of time quantum Between thresholding；Or, the time quantum in N number of time quantum has predefined pattern relationship；In a preferred embodiment, this is predetermined Adopted pattern relationship is adjacent time unit time interval having the same in N number of time quantum, certainly, the predefined pattern relationship It is not limited to that.

Specifically, the single time quantum money of selection one in the set of the single time quantum resource composition of each resource pool Source is as transmission resource, comprising:

Calculate the average received energy S- of remaining single time quantum resource in each transmission resource pool and/or each group resource RSSI；

A single time quantum resource is chosen in the single time quantum resource of preset quantity as transmission resource.

Step 403, its data to be transmitted packet carried is sent through sending resource.

Further, in method provided by the present invention, further includes:

PSCCH and/or PSSCH is received in receiving resource pool；Wherein, PSCCH and/or PSSCH is carried on the single time On N number of time quantum in element resources.

Further, the frequency domain relationship of each time quantum in N number of time quantum is determined under following either cases, It is specific:

1) N number of time quantum uses identical frequency domain resource,

A PSCCH and/or PSSCH is received on any time unit in N number of time quantum；

Obtain time and/or the frequency domain of the PSCCH and/or PSSCH of at least one other time quantum carried in PSCCH Instruction information.

2) N number of time quantum uses different frequency domain resources, and the position of each frequency domain resource corresponding to N number of time quantum Setting relationship is to be pre-configured with,

3) meet predefined pattern relationship between N number of time quantum,

4) N number of time quantum uses different frequency domain resources,

The position of the PSCCH in each time quantum is determined according to frequency domain resource position.

5) predefined pattern relationship is unsatisfactory between N number of time quantum,

Further, it for the stability of the maintenance transmission data packet when transmitting data packet, can use as follows at least A kind of processing；

According to the channel busy ratio CBR of the time quantum in each resource pool and/or each group resource, determine in each resource pool Configured transmission；

Calculate separately resource occupation ratio CR's in each resource pool and/or each group resource and/or resource occupation ratio CR Maximum value；

Determine the reserved resource for data packet transmission in each resource pool and/or each group resource；

According to each resource pool and/or the channel busy ratio CBR and priority of each group resource, it is determined whether lose reserved money Source.

For resource allocation methods provided by aforementioned present invention, resource is being sent to the data to be transmitted packet carried When carrying out sending and receiving processing, it is particularly suitable for the transmission carried out based on wave beam.

For one group of UE, for example, the UE in the same regional scope, sends sending in resource pool and/or resource group Wave beam and/or receive resource pool in receive wave beam when,

This group of UE, transmitted beam direction defers to identical rule in corresponding each transmission resource pool and/or resource group Then；And/or

This group of UE, the received beam direction of institute defers to identical rule in corresponding each reception resource pool and/or resource group Then.

Sending direction and/or receiving direction when wherein, based on multi-beam transmission can be determined according to type of service；Together Sample, configuring resource pool, determine single time quantum resource and detect and select transmission resource based on perception can be according to business Type determines.

Step in the embodiments of the present invention is divided, merely to illustrating an implementation cited by the present invention Example, and the step of for realizing resource allocation methods divides, it can be without being limited thereto.

For the processing transmitted based on wave beam, be based on separately below wave beam transmission, based on the reception of wave beam with And sending and receiving based on wave beam, in conjunction with specifically actually doing corresponding elaboration.Wherein, each UE have send beam capabilities and/ Or beam capabilities are received, in following explainations of the invention, for sending the name of UE merely to indicating it currently processed It is middle to be handled using beam capabilities are sent, equally, for receiving the name of UE merely to indicating it in currently processed middle utilization Beam capabilities are received to handle.

When the transmission of UE is transmission based on wave beam, for have broadcast perhaps the business transmission of multicast nature or For the uncertain unicast transmission for receiving the position UE, sends UE and need a data transmission in a plurality of directions, to repeat to send N It is secondary.As previously mentioned, semiduplex in order to solve the problems, such as, each data can repeat to send K times in existing LTE system.At this In invention, the data of UE are transmitted, each data can repeat to send K*N₁It is secondary.Correspondingly, it sends UE and needs reserved K*N₁It is a Resource, K are greater than or equal to 1, N₁More than or equal to 1；UE can periodically reserve above-mentioned K*N according to certain prepared separation₁It is a Resource, so as to transmit multiple data.According to the detection information in a detection window, UE can choose it and can occupy Above-mentioned K*N₁A resource, and continuously reserve C period.

When the reception of UE being received as based on wave beam, when for the uncertain arrival bearing for receiving signal, such as not really Surely the direction of UE, or the uncertain transmission beam direction for sending UE are sent, UE is received and needs in a plurality of directions, to attempt to receive Data.Correspondingly, sending UE in order to guarantee to receive being properly received for UE and needing on the same sending direction, repeat to send N₂ It is secondary.So, each data can repeat to send K*N₂It is secondary.

When UE send and receive be based on wave beam when, for the uncertain UE for receiving signal direction when, send UE It needs to repeat in the same direction to send N₂It is secondary, and sent in multiple directions, it is denoted as N₁It is secondary.So, each data It can repeat to send K*N₁*N₂It is secondary.

In systems in practice, each UE may have different transmission beam capabilities, and receive beam capabilities.For example, Some UE can be by way of the time-division, and unit, sends different wave beams in different times, and the sum of wave beam is 4.Alternatively, Some UE can be by way of the time-division, and unit, forms different reception wave beams in different times, and the sum for receiving wave beam is 8.UE can report the beam capabilities of oneself to control node, or the beam capabilities of oneself are reported to potential reception UE.

Correspondingly, repeating the times N sent in concrete implementation₁, N₂How to determine, it can be there are many mode.For example, For the business that broadcast or multicast are sent, can be determined according to the maximum value of potential each reception wave beam for receiving UE N₂.For the business that unicast is sent, N can be determined according to the number of unique reception wave beam for receiving UE₂.In another example in order to Keep the whole network it is each send UE consistency, repeat send number can be set as it is identical, but repeat transmission times in, How many time sends the same transmission wave beam for being, different UE can be different or identical.For example, when repeating transmission When number is set as 4, for only have 2 transmission beam capabilities UE, can be sent on each beam 2 times with a data, according to 2 wave beams of secondary transmission can send on each beam 1 time, successively for there is the UE of 4 transmission beam capabilities with a data 4 wave beams are sent, for there is the UE of 8 transmission beam capabilities, can first select 4 beam directions, a data are in each wave It is sent on beam 1 time, successively sends 4 wave beams, etc..

Repeat the times N sent₁, N₂, it can be the center control nodes of V2X communication, such as the base station of cellular network, or Other V2X center control nodes of person configure N to the UE under its coverage area according to the actual situation₁, N₂.It is pre- to be also possible to system Define N₁, N₂Value, such as no center control nodes covering UE, predefined value need to be used.It is also possible to send UE It voluntarily determines, and directly or indirectly notice receives UE.

In the present invention, mainly for N₁, N₂Or N₁*N₂Secondary repetition sends relevant design and carries out expansion description.It removes It illustrates outer, it is believed that retransmit the processing sent to K times, be identical with the prior art, or it is to be understood that for K times In each time, correspond to n times in the present embodiment and send (such as N₁, N₂Or N₁*N₂), K times send between relationship, can It determines, is not repeated according to the prior art.For convenience of description, it is described according to K=1 in the present embodiment, but not representing K can To be greater than 1.

The present invention provide following four specific embodiment, with elaborate the present invention for based on wave beam transmission and/or The process of the resource allocation methods of received V2X UE.Including the distribution method of resource pool, perception detects (sensing) Method, the method for the method and congestion control of V2X signal of the transmission/reception based on wave beam.

Embodiment one

It in V2X system, needs to provide service based on the received UE of wave beam, or sending UE is sent based on wave beam , it sends UE and needs to send n times (be also possible to K*N times, but for convenience of description, be set as K=1) for a Data duplication, example Such as N=N₁Or N₂Or N₁*N₂When, the resource for sending data can be configuration, or be pre-configured.

Configuration/the pre-configuration for sending resource pool can be accomplished by the following way:

(1) gatheringOn, it is respectively L with length_bitmap,iBit mapTo define Np resource pool.Work as b_k',i=1 and k'=k mod L_bitmap,iWhen, time quantum (TU)Belong to the #i resource pool.Wherein, TU can refer to subframe, time slot, mini time slot, symbol or cascade multiple Time slot/mini time slot etc..One time slot is comprising certain number of OFDM symbol, and a mini time slot is more shorter than time slot, can be with Include one or more OFDM symbol.For example, the TU in LTE V2X system is subframe, it include 14 OFDM symbols.

A kind of implementation, the configuration of this Np resource pool are independent.For example, the position TU of this Np resource pool is not Limit corresponding relationship.The length of each resource pool can be different, can also be identical.

Another implementation, the configuration of this Np resource pool are associated.For example, a resource pool is defined, and Other Np-1 resource pool can be uniquely determined according to predefined relationship.The length of each resource pool is identical.

The configuration of above-mentioned Np resource pool is to be indicated by a plurality of signaling, for example, every signaling individually indicates a resource The resource pool of the position in pond, the instruction of this Np signaling does not have the constraint relationship.As shown in figure 5, wherein Np=2.In another example every letter The position of individually one resource pool of instruction is enabled, but the resource pool of this N signaling instruction need to meet predefined relationship, for example be phase Adjacent.

(2) configuration of above-mentioned Np resource pool can be indicated by a signaling.Np resource pool can be share it is same Group bit indication, and Np resource pool is further discriminated between with other methods or parameter.

For example, by being L with length_bitmapBit mapDefine first resource pool, And instruction or the prespecified 2nd, 3 ... offset of the Np resource pool relative to first resource pool.For example, to first For resource pool, work as b_k'=1 and k'=k mod L_bitmapWhen, time quantum (TU)Belong to the 1st resource pool, then, GatheringIt is interior, it is single that the time that X time quantum is the 2nd resource pool is deviated relative to the time quantum Member, the time quantum relative to the 2nd resource pool deviates the time quantum that X time quantum is the 3rd resource pool, with this Analogize.A kind of special case, X=1, i.e., the corresponding time quantum of each resource pool is adjacent logical time unit.

In another example gatheringOn, it is L with length_bitmapBit map To define Np resource pool.Work as b_k'=1 and k=k mod L_bitmapWhen, time quantum (TU)Belong to the #i resource pool. Here time quantum has corresponded to the time resource of Np resource pool.For example, Np=4, time quantumCorresponding time grain Degree is time slot, it is assumed that the length is 7 OFDM symbols.So, it according to predefined rule, determines in this time quantum and includes Np time resource, this Np time resource, corresponding Np resource pool.For example, as shown in fig. 6, predefined by 7 symbols The 1st, the 2nd and last symbol vacate, then, the 3rd, 4,5,6 symbol, the respectively the 1st, 2,3,4 resource The time quantum in pond.Alternatively, further configuration, in this 7 symbols, the location information of Np time resource, for example (,) it is logical 7 bit indications are crossed, which 4 symbol has respectively corresponded the time quantum of the 1st, 2,3,4 resource pool.

(3) gatheringOn, it is L with Nq length_bitmap,iBit mapTo define Nq resource pool.Work as b_k',i=1 and k'=k mod L_bitmap,iWhen, time quantum (TU)Belong to the #i resource pool.Wherein, TU can refer to subframe, time slot, mini time slot, symbol or cascade multiple Time slot/mini time slot etc..One time slot is comprising certain number of OFDM symbol, and a mini time slot is more shorter than time slot, can be with Include one or more OFDM symbol.For example, the TU in LTE V2X system is subframe, it include 14 OFDM symbols.

In a resource pool, according to predefined pattern, or according to the pattern of configuration, Np group resource is distributed.

For example, for a resource pool, by being L with length_bitmapBit mapCome First group of resource in this resource pool is defined, and Np group resource is relative to first group for instruction or the prespecified 2nd, 3 ... The offset of resource.For example, working as b for first group of resource_k'=1 and k'=k mod L_bitmapWhen, time quantum (TU)Belong to the 1st group of resource, then, gatheringIt is interior, it is single that X time is deviated relative to the time quantum Member is the time quantum of the 2nd group of resource, and it is the 3rd group of money that the time quantum relative to the 2nd group of resource, which deviates X time quantum, The time quantum in source, and so on.A kind of special case, X=1, i.e. in a resource pool, the corresponding time quantum of each group resource is tight Adjacent logical time unit.

In another example gatheringOn, it is L with length_bitmapBit mapTo define the Np group resource in a resource pool.Work as b_k'=1 and k'=kmod L_bitmapWhen, when Between unit (TU)Belong to this resource pool.Here a time quantum has corresponded to the Np time money in this resource pool Source.For example, Np=4, time quantumCorresponding time granularity is time slot, it is assumed that the length is 7 OFDM symbols.So, root According to predefined rule, Np time resource for including in this time quantum is determined, this Np time resource, corresponding Np group money Source.For example, as shown in fig. 6, predefined the 1st by 7 symbols, the 2nd and last symbol are vacated, then, 3,4,5,6 symbols, a time quantum of the respectively the 1st, 2,3,4 group of resource.Alternatively, further configuration, at this 7 In symbol, the location information of Np time resource, such as by 7 bit indications, which 4 symbol has respectively corresponded the 1st, 2,3,4 The time quantum of group resource.

In above method, to provide service based on the received UE of wave beam, or sending UE is sent based on wave beam, can Think that sending UE configures Np transmission resource pool or configure Np group transmission resource in the same resource pool, and/or to receive UE, which configures Np reception resource pool or configures Np group in the same resource pool, receives resource.

Preferably, the reception resource of configuration and transmission resource pool and/or transmission resource group are one-to-one, and configuration connects It receives resource pool and/or receives the number of resource group equal to the number for sending resource pool and/or transmission resource group.

Preferably, sending resource pool and/or resource group and receiving resource pool and/or the configuration of resource group is independent, number Mesh can not wait.For example, base station is to send UE to be configured with 2 transmission resource pools, the two frequency domain resources for sending resource pool are Identical, time resource is different, and base station can configure a reception resource pool to receive UE, this receives resource pool and corresponds to two A union for sending resource pool.

Preferably, configuration receives resource pool and/or the Signalling Designing of resource group and can send with reference to configuring in the present embodiment The Signalling Designing of resource pool and/or resource group, is not repeated.

Preferably, be the multiple resource pools of independent configuration and/or resource group, or joint configure multiple resource pools and/or Resource group, and resource pool and/or resource group how are configured, the time delay of a data packet is sent with UE, UE sends data packet Flexibility etc. has relationship.

Preferably, if being configured with multiple transmission resource pools and/or resource group, there is the UE for sending beam capabilities, more In a transmission resource pool and/or resource group, different transmission wave beams transmission data can be used.In the same transmission resource pool And/or resource group, data are sent with identical transmission wave beam.

Preferably, if being configured with multiple reception resource pools and/or resource group, there is the UE for receiving beam capabilities, more In a reception resource pool and/or resource group, data can be received with different reception wave beams.The same reception resource pool and/ Or in resource group, data are received with identical reception wave beam.

Preferably, in order to enable the behavior of UE is consistent in a certain range, identical Np resource can be configured for one group of UE Pond and/or resource group, such as the UE in the same region.

Preferably, UE in a certain range, it is transmissible in corresponding Np transmission resource pool and/or resource group Beam direction defers to identical rule.For example, all UE are since i-th of time quantum of a resource pool, successively the 2nd, 3rd ... i-th of time quantum of Np group resource sends the same data packet respectively according to the direction of east, south, west, north.

Preferably, UE in a certain range, in corresponding N number of reception resource pool and/or resource group, for received Beam direction defers to identical rule.For example, all UE are opened from i-th of time quantum of the 1st group of resource in a resource pool Begin, successively the 2nd, the 3rd ... i-th of time quantum of Np group resource according to the direction of east, south, west, north, receives together respectively One data packet.

Preferably, in corresponding Np transmission resource pool and/or resource group, the rule for the beam direction that each UE is sent It can be different.What this was particularly suitable for each UE sends the different situation of beam capabilities.For example, a UE can be in this Np I-th of time quantum of a resource pool sends the same data with the wave beam in Np direction respectively, another UE can be in this Np I-th of time quantum of a resource pool sends the same data with the wave beam in Np/2 direction respectively, that is, can be same A direction is sent 2 times, and for the UE that omnidirectional sends, Np time quantum in this Np resource pool, equal omnidirectional's transmission is same A data.

Preferably, in corresponding Np reception resource pool and/or resource group, each reception beam direction for receiving UE Rule can be different.This is particularly suitable for the different situation of each reception beam capabilities for receiving UE.For example, a reception UE can receive the same data with the wave beam in Np direction respectively in i-th of time quantum of this Np resource pool, another UE can receive the same data with the wave beam in Np/2 direction respectively, also in i-th of time quantum of this Np resource pool It is that can be received 2 times, UE received for omnidirectional in the same direction, N number of time quantum in this Np resource pool, entirely To the same data of reception.

For the UE for having center control nodes, such as under the coverage area of cellular network base stations, or at one Under the coverage area of the center control nodes of V2X network, resource pool and/or resource group be configured by central node, or Person is that standard is predefined.In the covering of not center control nodes, resource pool and/or resource group are that standard is predefined, Perhaps being pass on by the UE in the covering of center control nodes or decided in its sole discretion by sending UE, and with predefined Form report to receive UE.

Above-mentioned Np resource pool can be nonoverlapping with other V2X resource pools, partly overlaps or completely overlapped.

For the different phase in V2X communication, base station can configure different Np for UE_iA resource pool and/or resource group. For example, with a set of resource pool, this set of resource pool contains Np when connection is established in switching or RRC₁A resource pool, in RRC After the completion of connection is established, with another set of resource pool, this set of resource pool contains Np₂A resource pool.Wherein, Np₁A resource pool And/or Np₂A resource pool can determine respectively according to the method for the present embodiment.Np₁=Np₂Or Np₁Not equal to Np₂.Each set money The operation in source pond is opposition, and the operation of selection resource is also independent in respective resource pool.Other realities of the invention Example is applied, can equally be well applied to each set resource pool.

Preferably, PSSCH and PSCCH shares the same transmission and/or reception resource pool and/or resource group.

Preferably, PSSCH and PSCCH is separately configured transmission and/or receives resource pool and/or resource group.For example, embodiment Method defined in one, the resource pool for being only used for PSCCH determine that the resource pool determination of PSSCH can be the prior art.

Embodiment two

After resource pool and/or resource group has been determined, sends UE and sending in resource pool, it will be in transmission resource pool Resource carries out perception detection (sensing), based on perception testing result, selects the resource that can be used for actually sending.In this way may be used Preferably to avoid or reduce the collision between different UE.In the V2X system of LTE, UE is sent according to following steps Resource selection (referring to the part 14.1.1.6 in TS 36.213):

Step1:V2X UE determines scheduled PSSCH by receiving the PSCCH that other UE are sent in perception detection window Running time-frequency resource position and priority.

Other described UE can be same type UE, or different type UE.

(referred to as PSSCH-RSRP is surveyed the demodulation reference channel received power of the scheduled PSSCH of Step2:V2X UE detection Amount), and resource of the PSSCH-RSRP higher than certain threshold will be corresponded in resource selection window and excluded.As shown in fig. 7, being examined in perception The PSSCH surveyed in window carries out RSRP measurement, if RSRP is higher than certain threshold, this PSSCH is corresponding possibly to be present at money Resource in source selection window is excluded.If remaining resource accounts for the ratio of total resources in resource selection window less than 20%, incite somebody to action The certain threshold improves 3dB, re-executes this step, until surplus resources occupation proportion is not less than 20%.

Step3:V2X UE computing resource selects the average received energy (S-RSSI) of surplus resources in window, and from S-RSSI A resource is randomly choosed in minimum part resource as transmission resource.As shown in figure 8, according to S-RSSI from small to large suitable Sequence is successively chosen from the surplus resources, until making all resources chosen account for total resources in resource selection window Ratio is not less than 20%.And a resource is randomly choosed from the resource chosen as transmission resource.

It is based on wave beam, simply reuse above step, nothing when the transmission of UE is the reception based on wave beam or UE Method guarantees that the UE of all directions can be avoided collision preferably.Also, for being based on the received UE of wave beam, it is also necessary to so that hair UE is sent to consider this problem when selection sends resource.In order to solve the above problem, UE can be according at least one in following methods Kind, carry out perception detection:

For convenience of description, it will be used to send same number in a resource pool of Np (Np=1 or Np=N) and/or resource group It is referred to as one ' single time quantum resource ' (concept and existing single- of LTE of i-th of data packet according to the resource of packet Subframe resource is corresponding) Si.The single time quantum resource Si time-domain dimension includes N number of time quantum, frequency domain dimension Degree includes M PRB, that is, is total up to M*N PRB.For example, when the time-domain dimension of single time quantum resource Si is one Gap, N number of time quantum respectively correspond an OFDM symbol or a mini time slot.Alternatively, single time quantum resource Si is Multiple time slots, N number of time quantum respectively correspond a time slot.For example, the frequency domain dimension requirement of single time quantum resource Si is N number of M PRB of time quantum meets predefined relationship, e.g. identical, perhaps meets predefined pattern relationship or single The frequency domain dimension of time quantum resource Si does not limit the relationship of M PRB of N number of time quantum.

Mode one: UE carries out step1~step3 in more (Np > 1) a transmission resource pool and/or resource group respectively.Choosing The N number of time quantum selected out, M PRB form a single time quantum resource, must satisfy on time dimension this it is N number of when Between time difference of first time quantum to a last time quantum in unit be no more than predefined time threshold, with full The delay requirement of sufficient V2X business.

Preferably, M PRB in N number of time quantum, need to meet predefined relationship, for example, N number of time quantum In the identical M PRB of occupancy, or without limitation.

If can not select such single time quantum resource of enough numbers in step2 or step3, then need Loosen increase RSRP thresholding in requirement, such as step2, with meet demand.It in the concrete realization, can be unlimited in step2 It is identical for being scheduled on the number of each time quantum retained in Np resource pool, and does not do the restriction of time delay, but When randomly selecting transmission resource in step3, needs to limit the time quantum that can form single time quantum resource, select N number of M PRB of time quantum so that the time difference of first resource to a last resource for N number of time quantum be no more than it is predetermined The time threshold of justice.Alternatively, when retaining resource in step2, just according to the single time quantum resource for thering is time delay to limit as grain Degree retains resource.For example, the resource of M PRB of at least one group is less than the time quantum of RSRP thresholding in resource selection window For #1, #2, #3, #4, #5, #10, #15, #16, #21, #26, #27, #32, #51, #52, #53.Assuming that N=4, and when maximum Prolong no more than 20ms.So, #1, #2, #3, #4, #5, #10, #15, #16, #21, #26, #27, #32 time quantum can be protected Stay, carry out step3, and #51, #52, #53 cannot retain because these three time quantums cannot with other any one when Between unit form a single time quantum resource and make the time difference be less than 20ms.

Alternatively, if only defining a resource pool and/or resource group, Np=1, then being felt in this resource pool Know detection, selects N number of time quantum, M PRB is as a single time quantum resource.The N number of time quantum selected, must The time difference that start time and terminal must be met is no more than predefined time threshold, to meet the delay requirement of V2X business.And And the N number of time quantum selected is only capable of generation one in a time quantum with support and connects not in unit at the same time The reception UE of wave beam is received, or is only capable of sending the transmitting-receiving of the transmission UE an of wave beam in a time quantum.Preferably, the N M PRB in a time quantum, need to meet predefined relationship, for example, the identical M PRB of the occupancy in N number of time quantum, or Person is without limitation.

For example, only considering that sending UE supports multiple transmission wave beams, but receives UE and do not support multiple reception wave beams, or not needle When optimizing to the reception wave beam of UE, base station is to send UE to configure N number of transmission resource pool, and wherein N is according to the transmission for sending UE The number N of wave beam₁Determine (N >=N₁).So, UE carries out perception detection in this N number of transmission resource pool respectively, selects N number of resource (the single time quantum resource of N*M PRB in total) is for sending.

For example, it is contemplated that sending, UE supports multiple transmission wave beams and receives the multiple reception wave beams of UE support, and base station is to send UE configures N number of transmission resource pool and/or resource group, and wherein N is according to the number N for sending wave beam for sending UE₁And base station is to latent The hypothesis of reception wave beam of reception UE determine (N >=N₁*N₂).So, UE is in this N number of transmission resource pool and/or resource group Perception detection is inside carried out respectively, selects N number of resource (the single time quantum resource of N*M PRB in total) for sending.

Mode two: sending UE and send in resource pool and/or resource group in multiple (Np > 1), according to predefined pattern relationship, Step1~step 3 is carried out to Np resource pool and/or resource group.The predefined pattern relationship, for limiting same number According to packet, the time resource position or time that are sent in Np resource pool and/or resource group and frequency domain resource position.Example Such as, N number of time quantum of one group of resource Si are as follows: N number of time quantum (X=1 indicates adjacent) of X is divided between in resource pool, but not Limit the starting point of this group of resource Si.Alternatively, for example, N number of time quantum of one group of resource Si is to be divided into the N number of of X in resource pool Time quantum, and the starting point (such as time quantum of first resource pool) of this group of resource Si meets specific requirement, such as For N multiple or meet N multiple and predefined offset.The starting point is the logical number or object of time quantum Reason number.

Preferably, the PRB that one group of PRB is occupied in N number of time quantum does not have the constraint relationship.For example, in N number of time Identical PRB is occupied in unit.Assuming that can mark off 100 groups of PRB in each time quantum, every group of PRB is M=10 PRB. So, each single time quantum resource is 10*N PRB, and corresponding is all i-th of time quantums in N number of time quantum In kth i group the resource that constitutes jointly of 10 PRB, wherein i=1,2 ... N, ki=1,2 ... 100.It is not difficult to find out that corresponding In one group of N number of time quantum, 10N single time quantum resources can be defined.

Preferably, the PRB that one group of PRB is occupied in N number of time quantum has the constraint relationship, for example, single in N number of time Identical PRB is occupied in member.Assuming that can mark off 100 groups of PRB in each time quantum, every group of PRB is 10 PRB.So, Each single time quantum resource is 10*N PRB, and corresponding is i-th group in N number of time quantum of 10 PRB.

As shown in figure 9, carrying out resource selection by following three step:

The PSCCH that step 901:V2X UE passes through reception other UE transmission in perception detection window determines scheduled The running time-frequency resource position of PSSCH and priority.

Other described UE can be same type UE, or different type UE.

The PSSCH-RSRP of the scheduled PSSCH of step 902:V2X UE detection, and will correspond in resource selection window The resource that PSSCH-RSRP is higher than certain threshold excludes, and retains resource by granularity of single time quantum resource.For example, if surplus The ratio that remaining single time quantum resource accounts for single time quantum resource total in resource selection window is less than predefined thresholding, The certain threshold is then improved into 3dB, re-executes this step, until remaining single time quantum resource occupation ratio is not less than The thresholding.

Step 903:V2X UE computing resource selects the average received energy of each single time quantum resource of residue in window (S-RSSI), i.e., the S-RSSI of the M*N PRB of single time quantum resource Si is averaging to obtain S-RSSI_{i_ave}, to all surplus Remaining resource is according to the average S-RSSI_{i_ave}Sequence from small to large is ranked up, and from S-RSSI_{i_ave}Minimum part is single A single time quantum resource is randomly choosed in one time element resources as transmission resource.For example, according to S-RSSI_{i_ave}From It is small to arrive big sequence, successively choose from the surplus resources, until making all resources chosen account for resource selection window The ratio of interior total resources is not less than predefined thresholding, and randomly chooses a resource as transmission from the resource chosen Resource.

A kind of schematic flow is given below to achieve the effect that above step 901~903:

- step1:UE attempts detection in the Np induction sent in resource pool and/or resource group detection window respectively PSCCH determines running time-frequency resource position and priority that Np sends the PSSCH being scheduled in resource pool and/or resource group；Or Only detection PSCCH, and the PSCCH by detecting are attempted in the induction detection window that part sends resource pool and/or resource group Determine the running time-frequency resource position for being detected the PSSCH of PSSCH scheduling and priority and other transmission resource pools and/or resource The running time-frequency resource position of PSSCH in group and priority.

- step2:UE detects the PSSCH-RSRP of scheduled PSSCH in Np resource pool and/or resource group, and will It is excluded corresponding to the PSSCH-RSRP single time quantum resource for being higher than certain threshold (if corresponded in resource selection window The subchannel that PSSCH-RSRP is higher than certain threshold has overlapping, then this single time quantum resource with single time quantum resource It excludes).That is, the single time quantum resource met the requirements is retained, to carry out step3.When if there is having some Frequency resource is not above RSRP thresholding, but the relationship of these running time-frequency resources does not meet predefined pattern relationship, cannot form or Person belongs to a single time quantum resource.Such resource can be also excluded.

A kind of implementation, what UE can be received according to step1 respectively in Np transmission resource pool and/or resource group PSCCH carries out PSSCH-RSRP measurement, will correspond to resource of the PSSCH-RSRP higher than certain threshold and excludes, obtains Np transmission Separately available resource in resource pool.It is full that UE only retains each corresponding resource that Np sends in resource pool and/or resource group The resource (resource granularity namely retained is single time quantum resource) of the predefined pattern relationship of foot carries out step3, i.e. handle All resources for being unsatisfactory for predefined pattern relationship all exclude.For example, the predefined pattern relationship of single time quantum resource exists Time dimension is N number of adjacent time quantum.If N=4 resource pool, in first resource pond, not higher than RSRP thresholding Time quantum is #1, #5, #21, #49, and in Secondary resource pond, the time quantum not higher than RSRP thresholding is #2, #10, #26, # 50, in information resources pond, the time quantum not higher than RSRP thresholding is #3, #15, #27, #35, #51, in the 4th resource pool In, the time quantum not higher than RSRP thresholding is #4, #16, #32.So, in this four resource pools, only time quantum #1, # 2, #3, #4 meet predefined pattern relationship, can form a single time quantum, therefore this single time quantum is protected It stays.Alternatively, UE is directly excluded and is retained to running time-frequency resource using single time quantum as granularity.

Note that may include multiple groups PRB in a time quantum.If all PRB groups in a time quantum are all It has been more than RSRP thresholding, has just thought that all resources of this time quantum are all excluded.If only PRB group in part is more than RSRP thresholding, only excludes these PRB groups, and the resource of other PRB groups of this time quantum remains.

Another implementation, UE can be received successively in first transmission resource pool and/or resource group according to step1 PSCCH to PSSCH_i,1Carry out PSSCH-RSRP measurement.If PSSCH_i,1PSSCH-RSRP be higher than thresholding, then with it is described PSSCH_i,1Corresponding other all transmission resource pools for belonging to the same single time quantum fallen in resource selection window and/ Or the frequency domain resource in the time quantum in resource group is not necessarily to carry out RSRP measurement, this single time quantum Si's is all Running time-frequency resource is excluded.If PSSCH_i,1PSSCH-RSRP not higher than thresholding, then examine and the PSSCH_i,1Belong to same Second of one single time quantum Si sends the running time-frequency resource in resource pool, if there is PSSCH_i,2, then PSSCH-RSRP is carried out Measurement.And so on.If all running time-frequency resources of Np transmission resource pool and/or the single time quantum Si in resource group are equal It is less than RSRP thresholding, then can be remained this single time quantum.If wherein at least one time quantum is more than RSRP thresholding, then this single time quantum excludes.

It is above schematic process.The present invention is not excluded for UE using other methods, achievees the effect that the present invention describes.

If remaining single time quantum resource accounts for single time quantum money total in resource selection window in step2 The ratio in source is less than Thr_step2, such as Thr_step2=20%, then the certain threshold is improved 3dB, re-executes this Step, until surplus resources occupation proportion is not less than Thr_step2.

- step3:UE is in Np transmission resource pool and/or resource group, to each of the surplus resources in resource selection window The S-RSSI of a single time quantum Si is averaged, to each single time quantum according to the average S-RSSI_{i_ave}From small It is ranked up to big sequence, and from S-RSSI_{i_ave}Random selection one is single in the single time quantum resource in minimum part Time quantum S_jAs transmission resource.

For mode two, when only one transmission resource pool and/or resource group, Np=1, then in this transmission resource Perception detection is carried out in pond, it is granularity that select resource, which be also according to single time quantum resource defined above, is finally selected Single time quantum resource meets first of predefined pattern relationship or single time quantum resource and last The time of a time quantum is no more than preset time thresholding.Therefore, in step1 described above, in this transmission resource pool Middle detection PSCCH determines PSSCH.In step2, if remaining #1, #2, #3, #4, #5, #10, #15, # in resource pool 16, #21, #26, #27, #32, #51, #52, #53 time quantum.So, UE is only capable of selection #1, and #2, #3, #4 is (if when single Between the starting points of element resources can only be that logical sequence number meets 4x+1 in resource pool, x is positive integer) or #1, #2, #3, #4 with And #2, #3, #4, #5 (if the starting point of single time quantum resource can be any one time quantum in transmission resource pool) Other remaining time quantums all exclude.Fig. 9 gives an example.To describe and illustrating conveniently, it is assumed that when each single Between element resources include 4 and send in resource pool adjacent 4 time quantums in logic, each single time quantum money at this The starting point in source is 4x+1, includes M PRB in each time quantum, the position of this M PRB be it is identical, and it is each single when Between M PRB of element resources do not overlap with each other.Assuming that each time quantum can be divided into 5 groups of M PRB.Such as figure Shown in 10, #1~#5, #10, #15, #16, #21, #26, #29~#32 has in #49~#52 time quantum and do not carry out RSRP measurement (PSCCH is not detected) and the running time-frequency resource for being less than RSRP thresholding.Wherein #1~#4 and #29~32, #49~52 can To form single time quantum resource.Wherein in #1~#4,4 groups of M PRB are met the requirements, and have 5 groups of M in #29~32 PRB is met the requirements, and has 4 groups of M PRB to meet the requirements in #49~52, therefore, in step2, the list that can retain One time element resources have 13.The resource of other time quantums can exclude.Assuming that requiring the single time quantum retained Total number resource be at least the single time quantum total number resource in resource selection window 2% (this usual number will not be too small, such as 20%.In order to illustrate conveniently, it is assumed here that for 2%).Resource selection window length is 100 time quantums, then sum is 125 Single time quantum resource.The resource for so needing to retain includes at least 25 single time quantum resources.Therefore, it is necessary to will RSRP thresholding improves, then selects some resources, meets at least 25 requirements.Then by this 25 resources, carry out step3's Rssi measurement.By taking first of #1~#4 single time quantum resource as an example, the institute of the 1~M PRB of average #1~#4 is needed Some RSSI.After step3, the final randomly selected single time quantum resource of UE is 4M+1~5M of #29~#32 PRB is to send resource.Note that not providing perception detection window in order to illustrate conveniently, only giving resource selection window.But ability Field technique personnel understand, and UE is to be excluded by the testing result in perception detection window to the resource in resource selection window 's.Also, although M PRB of the single time quantum resource in Figure 10 is not overlapped, and the present invention is similarly suitable M PRB for each single time quantum resource mutually overlapping situation.If sending UE, does not have reception wave beam, then send out It send UE in Np resource pool or the perception detection of the different time unit progress in a resource pool is omnidirectional.

If sending UE, has reception wave beam, then send different time list of the UE in Np resource pool and/or resource group The perception detection that member carries out can be different directions.For example, the reception that UE supports 2 wave beams is sent, the transmission of 4 wave beams, And N=4.So, UE is in wherein 2 resource pools with the reception wave beam in the same direction.With same in any two resource pools The wave beam in a direction receives, and can give over to UE realization, perhaps be configured by base station or system is preset.Similarly, UE is in reality When transmission, if to repeat to send 4 times, it is possible to be preset by base station configuration or system, so that the wave of transmitting-receiving UE Beam can correspond to, and be for every 2 times using the same transmission wave beam when for example, sending, and this 2 times transmissions correspond exactly to receive UE uses different reception wave beams.

If the transmitting-receiving wave beam of UE has reciprocity, that is, the spatial character strong correlation of wave beam is received and dispatched, then can be according to UE Transmission wave beam, determine perception detection direction.In order to reduce the complexity of UE, a kind of preferably mode can make UE only To the opposite direction in each direction for sending wave beam and transmission wave beam, perception detection is carried out.

Embodiment three

Embodiment one and embodiment two are mainly described transmission UE.In order to guarantee being normally carried out for V2X communication, need It is constrained accordingly UE is received.

Preferably, if predefined or configuration sends N number of time of the transmission resource (single time quantum resource) of UE Unit uses identical frequency domain resource, then, for receiving UE, if this UE has received one on a time quantum PSCCH, receiving UE can be inferred that the frequency domain resource of other N-1 time quantum.It can refer to not against the frequency domain resource of display Show the frequency domain resource instruction information in information, such as the PSCCH of other N-1 time quantum.The frequency domain resource is PSCCH And/or PSSCH.

Preferably, if predefined or configuration sends N number of time of the transmission resource (single time quantum resource) of UE Unit uses different frequency domain resources, but the specific location relationship of N number of frequency domain resource is predefined or is configured with.So, For receiving UE, if this UE receives the PSCCH of one of time quantum, receives UE and be possible to be inferred to other N- The frequency domain resource of 1 time quantum.Information can be indicated not against the frequency domain resource of display.The frequency domain resource is PSCCH And/or PSSCH.

Preferably, if predefined or configuration sends N number of time of the transmission resource (single time quantum resource) of UE Unit uses different frequency domain resources, and the specific location relationship of this N number of frequency domain resource does not limit.So, UE is received Each time quantum or each time quantum in resource pool that can only attempt one single time quantum resource of detection All possible frequency domain resource position, with determine each time quantum in PSCCH position.

Preferably, if predefined or configuration sends N number of time of the transmission resource (single time quantum resource) of UE Meet predefined pattern relationship between unit, then receive UE can be had received on a time quantum PSCCH with Afterwards, it is inferred to the time quantum and/or frequency domain information of other N-1 times transmission, can indicates to believe not against the time quantum of display Breath.Such as the time quantum in the PSCCH of other N-1 time quantum indicates not carrying in information or PSCCH about N number of The instruction information of time quantum.

Preferably, if predefined or configuration sends N number of time of the transmission resource (single time quantum resource) of UE Unit is unsatisfactory for predefined pattern relationship, sends in the PSCCH that UE can be sent at least one time quantum, includes instruction The time of at least one other time quantum and/or the instruction information of frequency domain.

Preferably, UE is received when receiving signal, can be used for combined information if indicated in the PSCCH received, The multiple PSSCH received can be merged by then receiving UE；Otherwise the PSSCH and/or PSCCH of each time quantum are not It is annexable.

Preferably, UE is received when receiving signal, according to predefined pattern relation information, determines single time quantum resource Si, and the PSSCH and/or PSCCH belonged in N number of time quantum of Si be it is annexable, as shown in figure 11.Preferably, institute State predefined pattern relation information, can be by V2X control node or base station configuration.

Preferably, if receive UE be based on wave beam carry out it is received, receive UE it needs to be determined that when each possible single Between element resources Si position (or referred to as pattern), for determine receive beam scanning receive (Rx beam sweep) when Step.

Preferably, if receive UE be based on wave beam carry out it is received, send UE be to be sent based on wave beam, receive UE is when receiving signal, it is thus necessary to determine that can be by the received pattern of beam scanning, for example, receiving UE it needs to be determined that transmission UE is same The N that a direction is sent₂The pattern of secondary transmission.In systems in practice, the ability of each reception wave beam for receiving UE may be different , such as receive UE₁It supports 4 reception wave beams, receives UE₂Support 2 reception wave beams.So, for receiving UE₁For, it needs It determines and sends UE₃In the same transmission beam direction, N=N is sent₂Pattern when=4 wave beams, for receiving UE₂For, It only needs to know in fact and sends UE₃In the same transmission beam direction, pattern when 2 wave beams is sent.But in broadcast nature Transmission in, sending UE can not go to optimize respectively for each reception UE.Therefore, according to the hypothesis of a comparison robust, it is determined that N.So, for receiving UE₂For, 2 transmission can be received in a reception beam direction, can merged.Such as Shown in Figure 12, UE is sent₃There are 2 transmission wave beams, sends UE₃Repeat one data packet of N=4*2=8 transmission.Receiving UE can be with Do not know and sends UE₃First send wave beam and second transmission wave beam time relationship, but receive UE needs know transmission UE₃The pattern sent in wave beam is sent at one.

Alternatively, receiving UE when receiving signal, it is thus necessary to determine that send the N that the same direction UE is sent₂The pattern of secondary transmission, And send the N of UE₁Secondary one group of length of transmission is N₂Pattern.For example, it is also shown in FIG. 12, send UE₃It is sent with 2 Wave beam receives UE₁With 4 reception wave beams, UE is received₂With 2 reception wave beams.So, it is assumed that send UE₃When sending signal, It having sent 8 times, the specific pattern of this 8 times transmissions is that 4 on the same sending direction time transmission is adjacent time quantum, And the transmission on each different sending direction is divided into 8, i.e. #0 between being, #1, #2, #3 is to send wave beam 1, #8, #9, #10, #11 It is to send wave beam 2.So, UE is received₁And UE₂Different reception wave beams can be used on #0, #1, #2, #3, similarly #8, # 9, #10, #11.

Preferably, UE sends the wave beam that a PSCCH is based on, and sends what the PSSCH that this PSCCH is dispatched was based on Wave beam, direction meet predefined relationship.For example, being in the same direction.

Preferably, UE is based on wave beam and receives a PSCCH, and receives the reception that the PSSCH of this PSCCH scheduling is based on Wave beam, direction meet predefined relationship.For example, being in the same direction.

Preferably, the beam information of the PSSCH of scheduling can be carried in PSCCH.

Example IV:

In the work of actual V2X system, system loading may be bigger, this will cause the interference between UE to become larger, Reduce the reliability of communication.In order to maintain system to stablize, need to introduce congestion control.

Preferably, when UE have N number of transmissions resource pool and/or resource group when, UE respectively according to N number of transmission resource pool with/ Or the channel busy ratio (CBR) of the time quantum in resource group, determine the configured transmission in Np resource pool, such as in each money The subchannel number occupied in the pond of source, the number (K) for adjusting code adjustment mode (MCS), transmitting to a data, resource live to account for With period and transmission power parameters etc..

Preferably, UE calculates separately resource occupation ratio (CR) and/or CR for N number of transmission resource pool and/or resource group Maximum value (CRlimit).

Preferably, UE determines reserved resource for N number of transmission resource pool and/or resource group respectively, reserved according to one Reserve one or more resource in interval, it is assumed that these reserved resources are all used for the transmission of UE.

Preferably, UE is for N number of transmission resource pool and/or resource group, respectively according to the measured value of CBR and priority, really It is fixed whether to need to lose some reserved resources, to reach the requirement of CBR.

Embodiment five:

In the prior art, on a carrier wave of V2X system, the subframe that removal is occupied for V2X synchronizing channel, and go Except some reserved subframes to make a System Frame Number (SFN) in the period remaining number of sub-frames be to configure the bit map of resource pool Length L_bitmapIntegral multiple, TDD (Time Division Duplexing, time division duplex) system also needs to remove all downlinks Frame, remaining sub-frame set are denoted asIt is patrolling for remaining subframe Collect number.

In order to support more flexible system configuration, in some communication systems, such as in 5G system, base station is semi-static to match Set ascending time slot, descending time slot and Flexible timeslot.In Flexible timeslot, base station can carry out cellular downlink transmission, such as send out PDCCH is sent, PDSCH or other downlink signals are sent.Base station can also dispatch UE and carry out cellular uplink transmission.In such system In system, in order to avoid V2X communication cellular communication between interference, when configuring the resource pool of V2X communication, can by with down toward The resource that may cause interference is removed in the combination of a kind of few mode or various ways:

(1) descending time slot/downlink symbol being semi-statically configured is removed；

(2) descending time slot/downlink symbol and Flexible timeslot that are semi-statically configured/flexible symbol are removed；

(3) descending time slot/downlink symbol that will be semi-statically configured, and what is be semi-statically configured are used under PDCCH transmission Capable or Flexible timeslot/symbol removes；

(4) time slot/symbol for being used for specific downlink signal/transmission being semi-statically configured is removed.It is described it is specific under Row signal/channel are as follows: descending synchronous signal channel and/or PBCH and/or system information (such as SIB1) and/or specific periodically ginseng Examine signal, such as the reference signal measured for RRM or RLM；

(5) the specified upstream signal/transmission time slot/symbol that is used for being semi-statically configured is removed.It is described it is specific on Row signal/channel are as follows: time slot/symbol for random access PRACH.

Based on resource allocation methods provided by aforementioned present invention, the present invention also provides a kind of user equipmenies, such as Figure 13 It is shown, comprising:

First processing units 1301, for configuration each resource pool and/or each group resource carry out perception detection, examined It surveys as a result, including the set of the single time quantum resource composition of residue of each resource pool in the testing result；

The second processing unit 1302, for the single time quantum money of residue in each resource pool and/or each group resource Select a single time quantum resource as transmission resource in the set of source composition；

Transmission unit 1303, for sending its data to be transmitted packet carried through the transmission resource；

For all embodiments of the invention, when the V2X type of service difference that UE needs to receive or send, send wave Beam and/or reception wave beam may be different with the difference of type of service.For example, in fleet (platooning) business scenario In, the vehicle in fleet may only need forwardly and/or backwardly to send, then, even if UE has the ability to support multiple transmission wave beams, UE Also it only needs using transmission square to before or after and/or receives wave beam.Naturally, in various embodiments of the present invention, it determines It sends resource pool, receive resource pool, transmission resource is detected and selected by perception, and determine and send and/or receive beam direction Etc., it can be different with the difference of business.

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 design and manufacture for required purpose, or also may 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 in any kind of medium of bus respectively 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 equipment (for example, computer) with any Jie for the form storage or transmission information that can be read Matter.

Those skilled in the art of the present technique be appreciated that can be realized with computer program instructions 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 neck Field technique personnel be appreciated that these computer program instructions can be supplied to general 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 The scheme specified in frame or multiple frames of the device to execute structure chart and/or block diagram and/or flow graph disclosed by the invention.

Those skilled in the art of the present technique have been appreciated that in the present invention the various operations crossed by discussion, method, in process Steps, measures, and schemes can be replaced, changed, combined or be deleted.Further, each with having been crossed by discussion in the present invention Kind of operation, method, other steps, measures, and schemes in process may also be alternated, changed, rearranged, decomposed, combined or deleted. Further, in the prior art to have and the step in various operations, method disclosed in the present invention, process, measure, scheme It may also be alternated, changed, rearranged, decomposed, combined or deleted.

The above is only some embodiments of the 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

1. a kind of method of resource allocation, which comprises the following steps:

Perception detection is carried out to each resource pool of configuration, obtains testing result, includes each resource pool in the testing result The set of remaining single time quantum resource composition；

A single time quantum resource is selected in the set of the single time quantum resource composition of residue of each resource pool As transmission resource；

Wherein, the single time quantum resource is to be made of N number of time quantum and M PRB for sending same data packet Running time-frequency resource, N > 1, M >=1.

2. the method according to claim 1, wherein being distinguished according to the instruction of a plurality of signaling at least two resource pools It is configured；Resource at least two resource pools of the configuration is independent；Or, meeting between at least two resource pools pre- Definition relationship.

3. the method according to claim 1, wherein according to a signaling instruction at least two resource pools One resource pool is configured, and other resource pools at least two resource pool are according to this resource pool and default pass System determines.

4. being obtained the method according to claim 1, wherein each resource pool of described pair of configuration carries out perception detection To testing result, comprising:

The physical bypass control channel PSCCH that other UE transmission is received in the perception detection window for sending resource pool, according to described PSCCH determines that physical bypass shares the running time-frequency resource and priority of channel PSSCH；

PSSCH-RSRP measurement is done to the PSSCH based on running time-frequency resource, determines each PSSCH's according to the priority of each PSSCH Whether RSRP measured value is higher than predefined thresholding；

If the RSRP measured value of the PSSCH is higher than predefined thresholding, and corresponding running time-frequency resource is located at the transmission resource pool Resource selection window in, then the running time-frequency resource is excluded；If the remaining single time quantum in addition to the running time-frequency resource The quantity of resource is less than preset threshold, then improves the predefined thresholding, exclude running time-frequency resource again, when remaining single Between the quantity of element resources meet the preset threshold.

5. method according to claim 4, which is characterized in that the running time-frequency resource of the exclusion is on each resource pool with institute It is granularity that N number of time quantum, which is stated, with the single time quantum resource for sending same data packet that M PRB is constituted.

6. method according to claim 4, which is characterized in that the running time-frequency resource of the exclusion is in each resource pool with one The time frequency domain resource that M PRB of a time quantum is constituted is granularity.

7. according to the method for any one of claim 4 to 6, which is characterized in that can not shape if including in remaining running time-frequency resource At the running time-frequency resource of single time quantum resource granularity, the running time-frequency resource is removed.

8. according to the method described in claim 4, it is characterized in that, the single time quantum resource in each resource pool Select a single time quantum resource as transmission resource in the set of composition, comprising:

A single time quantum resource is chosen in the single time quantum resource of the preset quantity as transmission resource.

9. method according to claim 4 or 5, which is characterized in that N number of time in the single time quantum resource is single Member has predefined pattern relationship.

10. the method according to claim 4 or 6, which is characterized in that N number of time in the single time quantum resource The time difference of two time quantums of head and the tail is no more than preset time thresholding in unit.

11. method according to claim 1 to 10, which is characterized in that further include:

PSCCH and/or PSSCH is received in receiving resource pool；Wherein, the PSCCH and/or PSSCH is carried on the single time On N number of time quantum in element resources.

12. method described in any one of -11 according to claim 1, which is characterized in that described in being determined under following either cases The frequency domain relationship of each time quantum in N number of time quantum:

N number of time quantum uses identical frequency domain resource；

N number of time quantum uses different frequency domain resources, and the position of each frequency domain resource corresponding to N number of time quantum Relationship is to be pre-configured with；

Meet predefined pattern relationship between N number of time quantum.

13. according to the method for claim 12, which is characterized in that when N number of time quantum is provided using different frequency domains When source, the method also includes:

The position of the PSCCH and/or PSSCH in each time quantum are determined according to the frequency domain resource position.

14. method described in any one of -12 according to claim 1, which is characterized in that when discontented between N number of time quantum When the predefined pattern relationship of foot, the method also includes:

Obtain time and/or the frequency domain of the PSCCH and/or PSSCH of at least one other time quantum carried in the PSCCH Instruction information.

15. the method according to claim 1, wherein by following at least one processing to transmit data packet:

16. method described in any one of -15 according to claim 1, which is characterized in that based on wave beam send and/or receive to Transmit data packet.

17. according to the method for claim 16, which is characterized in that

One group of UE, transmitted beam direction defers to same rule in corresponding each transmission resource pool；And/or

18. method described in any one of -17 according to claim 1, which is characterized in that determined according to type of service following any Treatment process:

Configure resource pool；

Determine single time quantum resource；

Transmission resource is detected and selected based on perception；

It determines and sends and/or receive beam direction.

19. a kind of user equipment characterized by comprising

First processing units obtain testing result for carrying out perception detection to each resource pool of configuration, in the testing result It include the set of the single time quantum resource composition of residue of each resource pool；

The second processing unit, for selection one in the set of the single time quantum resource composition of residue in each resource pool Single time quantum resource is as transmission resource；