CN109803321A

CN109803321A - Resource selection method and terminal under a kind of multi-service

Info

Publication number: CN109803321A
Application number: CN201711148939.2A
Authority: CN
Inventors: 冯媛; 周海军; 房家奕; 赵锐
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2019-05-24
Anticipated expiration: 2037-11-17
Also published as: CN109803321B

Abstract

The technical issues of embodiment of the present invention provides a kind of resource selection method and terminal, and there are no clear and unified processing modes when carrying out resource selection for solving terminal in the prior art.This method comprises: determining the resource reservation period of the current business reached, and the first business corresponding first before current business occupies resource transmission chance, one group of running time-frequency resource of business transmission packet which is used to indicate the selection of resource selection node, being used for transmission the first business；Resource transmission chance is occupied according to resource reservation period and first, resource exclusion is carried out to the running time-frequency resource in the corresponding resource selection window of current business, obtain candidate resource set；Wherein, the subframe of the candidate running time-frequency resource that candidate resource set includes and running time-frequency resource in the first occupancy resource transmission chance does not overlap；According to the size of the business of current business transmission packet and resource reservation period, the running time-frequency resource of selection transmission current business in candidate resource set.

Description

Resource selection method and terminal under a kind of multi-service

Technical field

Resource selection method and terminal the present invention relates to field of communication technology, in particular under a kind of multi-service.

Background technique

With the development of Vehicular communication system and gradualling mature for mobile self-grouping network technology, realize to vehicle it is real-time, Dynamically, intelligent management is concerned.Currently, description of the agreement for the exclusion for accounting for resource under multi-process (multi-service) mode certainly It is to belong to passive processing mode.

In the prior art, the arrival of business is random, mainly includes following two situation:

The first: the time point interval of two business triggering selections is bigger, certain business (new process) triggering selection/weight When choosing, first group of resource (passing resource as before) after remaining business triggering selection/gravity treatment perception (sensing) window it It is preceding or within sensing window.

The time point interval of second: two business triggering selection is closer, certain business (new process) triggering selection/weight There are first group of resources (passing resource as before) after triggering selection/gravity treatment when choosing, in remaining business selects window in sensing In selection (selection) window after mouthful or later.

And in existing standard, resource selection and process again are: firstly, by according in sensing information at The corresponding decoding of the decoded SA of function and metrical information carry out resource exclusion to the resource in selection window；Then, foundation Sensing information acting counting smooth, determines candidate resource set；Finally, being selected suitably in determining candidate resource set Resource.

However, for for the first case, passed originally resource before sensing window or within when, this portion Subframe where point resource is exactly the skip subframe in agreement, but for the reserve resource of other node in resource process flow All only consider to occupy next time.Regardless of being that two resources all pass resource in sensing window in sensing window or just Mouthful, retransmission resource can be excluded in selection window by existing protocol, but also be had in existing standard similar Processing, is all the exclusion once occupied to other node.For second situation, resource selection is directed in standard at present Do not do specially treated, propose in further standard in order to guarantee single-carrier property, if there is in the same subframe it is multiple not If continuous resource, sends processing and depend on realizing (packet loss is needed to handle).Such case may continue multiframe, then may need Continuous multiple frames do similar processing.

For to sum up, for resource selection, there are no clear and unified processing modes in the prior art.

Summary of the invention

The embodiment of the present invention provides resource selection method and terminal under a kind of multi-service, for solving in the prior art eventually Hold the technical issues of there are no clear and unified processing modes when carrying out resource selection.

Specific technical solution provided in an embodiment of the present invention is as follows:

In a first aspect, the embodiment of the present invention provides a kind of resource selection method, comprising the following steps:

Determine resource reservation period and the first business before the current business corresponding the of the current business reached One occupies resource transmission chance；Wherein, the first occupancy resource transmission chance is used to indicate the selection of resource selection node, use In one group of running time-frequency resource of the business transmission packet for transmitting first business；

Resource transmission chance is occupied to the corresponding money of the current business according to the resource reservation period and described first Source selects the running time-frequency resource in window to carry out resource exclusion, obtains candidate resource set；Wherein, the candidate resource set includes Candidate running time-frequency resource where subframe do not overlapped with the corresponding subframe of running time-frequency resource in the first occupancy resource transmission chance；

According to the size of the business of current business transmission packet and the resource reservation period, in the candidate resource collection The running time-frequency resource of the current business is transmitted in selection in conjunction.

In possible embodiment, resource transmission chance is occupied to described according to the resource reservation period and described first Running time-frequency resource in the corresponding resource selection window of current business carries out resource exclusion, comprising:

According to the resource reservation period and the resource selection parameter of configuration, each time in the resource selection window is determined Select the corresponding one group of running time-frequency resource transmission opportunity of running time-frequency resource；

If it is determined that the candidate corresponding one group of running time-frequency resource transmission opportunity of running time-frequency resource and the first occupancy resource transmission machine It can overlap, exclude candidate's running time-frequency resource in the resource selection window.

In possible embodiment, resource is being occupied to the current industry according to the resource reservation period and described first It is engaged in after the running time-frequency resource progress resource exclusion in corresponding resource selection window, before obtaining candidate resource set, also wraps It includes:

According to the normal process of resource selection agreement, resource exclusion processing is carried out to the skip subframe in perception window, and, Resource exclusion processing is carried out according to scheduling control signaling SA reception and measurement information.

In possible embodiment, resource is being occupied to the current industry according to the resource reservation period and described first It is engaged in front of the running time-frequency resource progress resource exclusion in corresponding resource selection window, further includes:

According to the normal process of resource selection agreement, resource exclusion processing is carried out to the skip subframe in perception window；

In possible embodiment, resource is being occupied to the current industry according to the resource reservation period and described first It is engaged in after the running time-frequency resource progress resource exclusion in corresponding resource selection window, before acquisition candidate resource set, further includes:

According to the normal process of resource selection agreement, resource row is carried out according to scheduling control signaling SA reception and measurement information Except processing.

In possible embodiment, after obtaining candidate resource set, the method also includes:

Power smooth processing is carried out to the candidate running time-frequency resource in the candidate resource set, determines smooth power lower than pre- If the target candidate running time-frequency resource of performance number；

Then, according to the size of the business of current business transmission packet and the resource reservation period, in the candidate money The running time-frequency resource of the current business is transmitted in selection in the set of source, comprising:

According to size, the resource reservation period and the number of transmissions of business transmission packet, when from the target candidate The running time-frequency resource of quantity corresponding with the number of transmissions is selected in frequency resource；Wherein, when the number of transmissions is more than or equal to 2, phase Time interval between corresponding two subframes of two running time-frequency resources that should be selected was in the resource reservation period, and described Two subframes do not overlap.

Second aspect, the embodiment of the present invention provide a kind of terminal, comprising:

Receiver, for receiving multiple business；

Processor, for first before the resource reservation period of the determining current business reached and the current business Business corresponding first occupies resource transmission chance, and occupies resource transmission machine according to the resource reservation period and described first Resource exclusion can be carried out to the running time-frequency resource in the corresponding resource selection window of the current business, obtain candidate resource set, And size and the resource reservation period according to the business of current business transmission packet, it is selected in the candidate resource set Select the running time-frequency resource for transmitting the current business；

Wherein, the first occupancy resource transmission chance be used to indicate the selection of resource selection node, be used for transmission it is described One group of running time-frequency resource of the business transmission packet of the first business, the son where the candidate running time-frequency resource that the candidate resource set includes Frame subframe corresponding with running time-frequency resource in the first occupancy resource transmission chance does not overlap.

In possible embodiment, the processor is used for:

In possible embodiment, the processor is further used for:

Resource is being occupied to the corresponding resource selection of the current business according to the resource reservation period and described first After running time-frequency resource in window carries out resource exclusion, before obtaining candidate resource set, according to the mark of resource selection agreement Quasi- process carries out resource exclusion processing to the skip subframe in perception window, and, according to scheduling control signaling SA reception and measurement Information carries out resource exclusion processing.

In possible embodiment, the processor is further used for:

Resource is being occupied to the corresponding resource selection of the current business according to the resource reservation period and described first Before running time-frequency resource in window carries out resource exclusion, according to the normal process of resource selection agreement, in perception window Skip subframe carries out resource exclusion processing.

In possible embodiment, the processor is further used for:

Resource is being occupied to the corresponding resource selection of the current business according to the resource reservation period and described first After running time-frequency resource in window carries out resource exclusion, before obtaining candidate resource set, according to the standard of resource selection agreement Process carries out resource exclusion processing according to scheduling control signaling SA reception and measurement information.

In possible embodiment, the processor is further used for:

After obtaining candidate resource set, power smooth is carried out to the candidate running time-frequency resource in the candidate resource set Processing determines that smooth power is lower than the target candidate running time-frequency resource of predetermined power value；

The third aspect, the embodiment of the present invention provide a kind of terminal, comprising:

Determining module, for determine the current business reached the resource reservation period and the current business before the One business corresponding first occupies resource transmission chance；Wherein, the first occupancy resource transmission chance is used to indicate resource choosing One group of running time-frequency resource of business transmission packet selecting node selection, being used for transmission first business；

Processing module, for occupying resource transmission chance to described current according to the resource reservation period and described first Running time-frequency resource in the corresponding resource selection window of business carries out resource exclusion, obtains candidate resource set；Wherein, the candidate Subframe where the candidate running time-frequency resource that resource collection includes is corresponding with running time-frequency resource in the first occupancy resource transmission chance Subframe do not overlap；

Selecting module, size and the resource reservation period for being wrapped according to the transmission of the business of the current business, The running time-frequency resource of the current business is transmitted in selection in the candidate resource set.

Fourth aspect, the embodiment of the present invention provide a kind of computer installation, which is characterized in that the computer installation includes Processor realizes method as described in relation to the first aspect when the processor is for executing the computer program stored in memory.

5th aspect, the embodiment of the present invention provide a kind of computer readable storage medium, the computer-readable storage medium Matter is stored with computer instruction, when described instruction is run on computers, so that computer executes as described in relation to the first aspect Method.

In the embodiment of the present invention, before resource reservation period and the current business by obtaining the current business reached The first business first occupy resource transmission chance, thus according to the resource reservation period and first occupy resource transmission chance, Resource exclusion can be carried out to the running time-frequency resource in the corresponding resource selection window of current business, obtain and accounted for comprising subframe with first With the nonoverlapping candidate resource set of the subframe of the running time-frequency resource in resource transmission chance, and then selected in candidate resource set Suitable running time-frequency resource wraps to transmit the business transmission of current business, effectively avoids resource collision, packet loss is reduced, to improve System performance.

Detailed description of the invention

Fig. 1 is the flow chart of the resource selection method in the embodiment of the present invention under multi-service；

Fig. 2 is that the corresponding timing diagram of business is reached in the embodiment of the present invention；

Fig. 3 is in the embodiment of the present invention to the exclusion process schematic diagram for accounting for resource certainly；

Fig. 4 is the schematic diagram that effective SA in window is perceived in the embodiment of the present invention；

Fig. 5 is that resource and candidate resource are occupied in the embodiment of the present invention in the presence of the schematic diagram of collision；

Fig. 6 is showing for the surplus resources power smoothing processing not excluded in the embodiment of the present invention to resource in selection window It is intended to；

Fig. 7 is the structural schematic diagram of terminal in the embodiment of the present invention；

Fig. 8 is the module diagram of terminal in the embodiment of the present invention；

Fig. 9 is the structural schematic diagram of computer installation in the embodiment of the present invention.

Specific embodiment

To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts All other embodiment, shall fall within the protection scope of the present invention.

Firstly, simply being introduced resource selection/gravity treatment process in existing standard.

In existing standard, resource selection/gravity treatment process is mainly comprised the steps that

1, according to the SA being successfully decoded in the sensing information for other nodes that transmitting-receiving node is known in sensing window Corresponding decoding and metrical information carry out resource exclusion to the resource in resource selection window；

2, according to sensing information acting counting smooth, candidate resource set is determined；

3, suitable resource is selected in determining candidate resource set.

Wherein, resource exclusion process is and selects the running time-frequency resource in selection window (selection), but money at present The information that source selection node can obtain only has the information in sensing window, therefore needs according in the sensing window of acquisition Information speculates the occupancy situation of the resource in selection window, and further carries out screening, row to the running time-frequency resource in selection window Except occupied running time-frequency resource.

Mainly include in the prior art following procedure when carrying out resource exclusion:

Firstly, determining effective newest SA, which is that recent be subscribed on the time belongs to selection window The SA of running time-frequency resource in mouthful and after selection window.

Secondly, excluding the corresponding candidate's subframes of skip subframe according to the period of system configuration；

Then, resource exclusion is carried out according to SA reception and measurement information, i.e., resource row is carried out according to the subframe for listening to SCI It removes.

It determines in resource selection window, the SA of decoded running time-frequency resource indicates next resource reservation and can provide with candidate The TB that the corresponding following resource of transmission block (Transport Block, TB) or candidate resource that source is sent is sent collides, and Decoded SA carries out physics Sidelink and shares channel (Pysical Sidelink Share Channel, PSSCH)-with reference to letter Number receive power (Reference Signal Receiving Power, RSRP) measurement, measured value be higher than RSRP thresholding, exclude The candidate resource.

Resource exclusion process is to judge whether occupied resource can exist with the candidate resource of UE to collide, and exclude to send The running time-frequency resource of collision, to obtain the candidate resource set for including candidate resource, and then can be by candidate resource set Candidate resource carry out power smooth processing, screen the lower running time-frequency resource of smooth power, and then carry out resource selection, selection close The business of suitable running time-frequency resource transmission current business transmits packet.

In the following, introducing the technical solution of the embodiment of the present invention in conjunction with attached drawing and preferred embodiment.

As shown in Figure 1, the embodiment of the present invention provides the resource selection method under a kind of multi-service, this method be can be applied to Terminal, this method may comprise steps of:

S11: the resource reservation period of the current business reached and the first business before current business corresponding the are determined One occupies resource transmission chance；Wherein, first occupancy resource transmission chance be used to indicate resource selection node selection, for passing One group of running time-frequency resource of the business transmission packet of defeated first business.

In the embodiment of the present invention, the resource reservation period of current business is can serve to indicate that optional known to terminal The period, such as 20ms or 50ms of running time-frequency resource etc. for the transmission packet for being used for transmission current business selected.

Current business can be in the case of multi-service (multi-process) in the business currently reached, will trigger resource selection section Point selection/reselection is used for transmission the running time-frequency resource of current current business.And other business (such as the first industry before current business Business) triggering be corresponding with first group of resource transmission chance (in the embodiment of the present invention for just passing resource) after selection/reselection, should The running time-frequency resource of the corresponding reservation of first group of resource transmission chance may be before sensing window or sensing window it It is interior, that is to say, that the time interval of current business and the first business triggering selection is larger.Alternatively, first group of resource transmission chance Be likely to be in the selection window after sensing window or selection window after, i.e., current business and the first business trigger The time interval of selection may be relatively close.

As shown in Fig. 2, it is the corresponding timing diagram of business, wherein perception (sensing) window is the long fixed sliding of window Window, for example, if the time that current business reaches corresponding subframe is m, if a length of 1000ms of the window of sensing window, The window ranges of the corresponding sensing window of current business are [m-1000, m-1], the corresponding long range of window for selecting window It can be [m+T1, m+T2], wherein T1 and T2 is the parameter of system fixed setting.Including running time-frequency resource in sensing window Multiple transmitting-receiving nodes are used for transmission the business transmission packet of related service, select to include optional running time-frequency resource in window.

S12: resource transmission chance is occupied to the corresponding resource selection window of current business according to resource reservation period and first Running time-frequency resource in mouthful carries out resource exclusion, obtains candidate resource set；Wherein, the candidate time-frequency money that candidate resource set includes Subframe subframe corresponding with running time-frequency resource in the first occupancy resource transmission chance where source does not overlap.

The candidate running time-frequency resource for including in the embodiment of the present invention, in candidate resource set is optional idling-resource, empty Subframe where not busy resource is unoccupied.

Specifically, in the multiple time-frequencies for including according to resource reservation period and the first occupancy resource transmission chance in S12 It, first can be according to resource reservation week when resource carries out resource exclusion to the running time-frequency resource in the resource selection window of current business The resource continuous parameter of phase and configuration determines the corresponding one group of transmission opportunity of each candidate's running time-frequency resource in resource selection window； Wherein, the resource continuous parameter of configuration can refer to current SL_RESOURCE_RESELECTION_COUNTER, can be used for The duration of corresponding running time-frequency resource is wrapped in the transmission of characterization business.

The corresponding one group of transmission opportunity of a running time-frequency resource can be used for characterizing resource selection in determining resource selection window Subframe in window where corresponding candidate running time-frequency resource may transmission services transmission according to one group corresponding to the resource reservation period The running time-frequency resource of packet, also referred to as grants, grants herein are primarily referred to as also not sent after sensing window grants。

For example, if the resource reservation period be 100ms, select the corresponding subframe of the candidate resource in window for n (unit: Ms), then subframe corresponding to the running time-frequency resource that may include in corresponding confirmable one group of transmission opportunity includes n+100ms, n + 200ms, n+300ms ... ... determine transmission opportunity in the way of fall backward.

Simultaneously as the corresponding subframe of candidate's running time-frequency resource may be different from the initial position of resource selection window, at this time By as unit of subframe in resource selection window, to each subframe in resource selection window in the way of falling forward, really Determine the corresponding time slot of subframe corresponding to running time-frequency resource, such as n-100ms, n-200ms ... ..., and subframe be no more than it is current when It carves.

Therefore, the corresponding subframe of one group of transmission opportunity determined in S12 is according to each time in resource selection window The corresponding subframe of running time-frequency resource and resource reservation period are selected, one group of time-frequency money determined by the mode and backward fallen forward Source.

Further, can sentence after the corresponding one group of transmission opportunity of each candidate's running time-frequency resource in determining resource selection window Whether the corresponding one group of transmission opportunity of each candidate running time-frequency resource of breaking, which occupies resource transmission chance with first, overlaps, first occupancy Resource transmission chance can refer to first group of running time-frequency resource after the first business triggering selection/again, herein mainly with first Group running time-frequency resource is to be illustrated in case where just passing resource.

In practical applications, if existing resource includes: resource 1, and the one group of candidate determined according to the resource of selection Resource { grants }.If each of 1 corresponding one group of grants of resource resource, in such a way that timing is fallen backward, and According to the corresponding step-length of resource 2 (resource reservation period), the candidate running time-frequency resource institute in corresponding selection window can be excluded Subframe on all candidate running time-frequency resources.

Using subframe as granularity in resource selection window, to each subframe, in the way of falling forward, and according to resource 2 corresponding step-lengths (i.e. resource reservation period) can determine that 10*SL_RESOURCE_RESELECTION_COUNTER reservation can The occupancy resource of energy can exclude if the subframe where these occupy running time-frequency resource grants corresponding with resource 1 has overlapping This subframe.

For example, if existing resource includes: resource 1 before current business, and determined according to the resource of selection one Group candidate resource { grants }.If resource selection node is the corresponding 10*SL_RESOURCE_ of resource 2 of current business selection RESELECTION_COUNTER times possible { grants } { grants } corresponding with resource 1 has belong to the same subframe if, This resource is then excluded, the collision of running time-frequency resource is avoided.

The process of S12 can be known as " to the exclusion process for accounting for resource certainly " herein.In the following, passing through again in conjunction with foregoing description Citing is to illustrate the process.

If existing resource are as follows: resource 1, reservation periods P1, and one group according to the determination of the resource of selection Corresponding time interval is P1 between two neighboring grant in grants, grants；Need the resource of selection: reservation periods For P2.

As shown in figure 3, it is to the exclusion process schematic diagram for accounting for resource certainly.In figure, the dotted arrow generation in window is selected Table has first group of resource (i.e. resource 1), subsequent to have corresponding multiple resource (10*COUNTER) maintenance (not shown)s. So, when being processed for each subframe in resource selection window, it is possible to determine that { each subframe+P2*M } whether with money Subframe locating for grants in source 1 has overlapping, wherein M=1,2 ... ..., C_{r e}, l and C_{r e}=10*SL_RESOURCE_ RESELECTION_COUNTER.If there is overlapping, then this subframe is excluded.

It should be noted that judgement is the money being in after sensing window in the exclusion process for accounting for resource certainly Source, if be first group of existing resource, i.e. whether resource 1 has been transmitted across, to also not sent grant using same Processing mode.

In the embodiment of the present invention, by the exclusion to resource is accounted for certainly, it is possible to prevente effectively from resource collision, reduces packet loss, Improve system performance.

In the embodiment of the present invention, the exclusion to resource is accounted for certainly realized by S12 can be combined with existing resource selection Resource in the normal process of agreement excludes processing method and carries out resource exclusion jointly, and the combinable resource that accounts for certainly is explained below and arranges Except the standard resource wipe-out mode of mode:

Mode one: resource exclusion is carried out to skip subframe.

Skip subframe refers in sensing window, since terminal (User Equipment, UE) is from certain (a little) subframe On the subframe that is sent, and can not perceived.

Resource exclusion is carried out to skip subframe, actually refers to and the corresponding candidate's subframes of skip subframe is excluded.It is false Other UE are subscribed to resource next time with all periods of system configuration in the fixed subframe, and subframe where the resource reserved with The candidate's subframes of skip subframe are overlapping, or with 1,2 after candidate's subframes ..., 10*counter -1 times transmissions subframe overlaps, Then above-mentioned candidate's subframes are excluded.

For example, if system is configured transmittable 100ms short cycle business below, (reservation periods of such as business are 20ms, 50ms etc.).If UE is sent in a short cycle before TB arrival, as met the exclusion of skip subframe Condition can then exclude (100ms/ short cycle) a candidate's subframes.If system support 20ms business, and [n-20ms, n) when Between in range resource selection UE sent, candidate's subframes y meets the corresponding condition excluded of skip subframe, then can determine exclusion This 5 candidate's subframes of y, y+20ms, y+40ms, y+60ms, y+80ms.

Mode two: resource exclusion is carried out according to SA reception and measurement information, resource row also referred to as is carried out to SCI resource reservation It removes.

Due to business starting point, semi-persistent scheduling (Semi-Persistent Scheduling, SPS) resource continuous time The difference of (being denoted as: SPS counter value) and service period (SPS period: i*P) etc..Node is received perception window is inscribed The information such as the number of the SA of other nodes and interval may be all different.In Fig. 3, what node received in sensing window The number of SA corresponds to a TB's comprising just passes SA and retransmits SA.

In this approach, firstly, determining effective newest SA.

Effective newest SA be it is recent be subscribed to belong on the time in selection window and after selection window when The SA of frequency resource.Since the maintenance duration of node SPS resource belongs to the information of intra-node maintenance, what other nodes can be known It is no whether information is only reserved next time.Therefore from the perspective of receiving node, other nodes for knowing in sensing window Information only have it is newest once be subscribed to belong on the time selection window in and selection window after running time-frequency resource SA It is effective.

For example, in perception window shown in Fig. 4, it is assumed that the SPS period of node A is 100ms, if its newest one Subsequent continuation reserve resource is indicated in SA and the following resource belongs within resource selection window, then the SA is effective；It is assumed that The SPS period of node B is 100ms, if the resource of its newest SA reservation belongs in sensing window, which is nothing Effect, which may be caused due to change in topology or channel variation；It is assumed that the SPS period of node C is 1s, if its is newest pre- The resource of a SA about belongs to from the time after selection window, then the SA is effective.

Then, judge in resource selection window candidate resource whether and meanwhile meet following two condition, if satisfied, then should Candidate resource excludes.

1. SA indicates next resource reservation and can subsequent time-frequency money corresponding with the TB or candidate resource that candidate resource is sent The TB that source is sent collides.

That is, if being indicated according to SA: determining that the occupancy resource of instruction can be sent out on candidate resource with resource selection UE The TB sent collides, i.e. transmission SA node is subscribed to the running time-frequency resource in resource selection window, then as shown in Fig. 4 interior joint A, Then node A reserves resource and can be excluded.

Need exist for supplementary explanation: SA herein refers to TB granularity, that is, contains and just pass SA and re-transmission SA. Either first SA and/or re-transmission SA are correctly decoded, and can determine corresponding 2 data resource occupation.

Alternatively, if being indicated according to SA: determine instruction occupancy resource can with resource selection UE candidate resource subsequent money The TB sent on source collides, although sending SA node does not reserve resource in selection window, such as transmission SA The resource of node reservation is selecting except window, but selects resource node if certain resource in selection selection window, money Source select first TB of UE to send after, the following subsequent TB there is the possibility collided with the node of transmission SA, such as Fig. 5 interior joint C Shown, wherein Fig. 5, which is shown, determines occupy resource whether can be with the candidate resource of UE in the presence of the schematic diagram collided.

Need exist for supplementary explanation several points: (1) standard provides to be according to time shaft according to the resource in selection window to select Selecting the period that resource node determines is granularity toward future map, this mode and the resource reserved next time according to SA node is sent It is consistent as granularity toward demapping is crossed according to time shaft using the period for selecting resource node to determine；(2) step number (window mapped Length/range): 1,2 ..., 10*counter -1；(3) SA here is all referring to TB granularity, that is, contains and just pass and again It passes.Either first and/or re-transmission SA is correctly decoded, and can determine corresponding 2 data resource occupation；(4) from as far as possible From the perspective of avoiding collision, needs to send the subsequent possible resource reservation of SA node and all take into account, here according to standard Be in progress newest conclusion, it is believed that sends SA node and only reserves subsequent first resource.

2. decoded SA carries out PSSCH-RSRP measurement, excludes measured value and be higher than the resource that RSRP receives power threshold.

For the angle of power measurement, determines that resource occupation is effectively to occupy for selecting resource node, need Consider: the distance between the corresponding node of the effective newest SA and the node of the selection resource having in resource multiplex Within the scope of effect, avoid between two nodes that distance is except the effective range of resource multiplex, i.e. two far essence of nodal distance It can be occurred with spatial reuse without the case where spatial reuse.Here by the corresponding data (data) of newest 1 SA What the PSSCH-RSRP instantaneous value of resource obtained compared with the power threshold mutually coped with.

Need exist for supplementary explanation several points: (1) granularity of SA is TB granularity, contains and just passes SA and retransmit SA, i.e., Either first SA and/or re-transmission SA are received, and can determine corresponding 2 data (data) resource occupation.Herein, for The measurement in the domain data uses similar processing:, can be to respectively associated if just passing SA and re-transmission SA and being all properly received Data does in domain independent measurement；If being wherein once not properly received, the measurement in the in addition primary domain data can be used Node substitutes.(2) granularity: each demodulated reference signal (Demodulation Reference Signal, DMRS) is measured It is measured on the RE of pilot tone, the mean value of RE granularity is sought after being added in corresponding subchannel or sets of sub-channels.(3) It is unrelated whether measurement here is correctly decoded with the domain data.(4) it equivalent estimates there is certain: is used in fact here The measurement amount in corresponding newest effective associated domain Data SA represents in corresponding selection window in sensing window The measurement amount of corresponding resource；With two nodes of time point where newest effective SA corresponding in current sensing window it Between space length carry out the space length in the alternate subsequent time between two nodes.

In turn, the candidate resource of satisfaction 1. and 2. is excluded from resource selection window, may include following several situations:

Situation 1: it if the resource reservation period for receiving SA instruction is more than or equal to 100ms, only needs to indicate SA Lower 1 reserved resource excluded.

Situation 2: if the resource reservation period for receiving SA instruction is the short cycle (20ms, 50ms) less than 100ms, and Receive time of above-mentioned SA [n- short cycle, n) in range, then to (100/ short cycle) secondary reserved resource under SA instruction It is excluded.

For example, if receive SA instruction the resource reservation period be 20ms, and the SA be [n-20ms, n) time model It encloses and receives, the time of reception is denoted as x, then needing to consider to x+20ms, x+40ms, x+60ms, x+80ms, x+100ms this 5 times The reserved corresponding candidate resource of resource is excluded.

Situation 3: if the resource reservation period for receiving SA instruction is the short cycle (20ms, 50ms) less than 100ms, but Receive time of above-mentioned SA not [n- short cycle, n) in range, then the lower 1 reserved resource for only needing to indicate SA into Row excludes.

In the embodiment of the present invention, by S12 to accounting in the treatment process and normal process that resource excludes certainly When mode one and mode two combine progress resource exclusion, it can execute in the following order:

Form 1: account for certainly resource exclusion → skip subframe exclude → resource exclusion is carried out (i.e. according to SA reception and measurement information SCI resource reservation is excluded).

Form 2:skip subframe exclude → account for certainly resource exclude → according to SA reception and measurement information carry out resource exclusion (i.e. Resource exclusion processing is carried out to SCI resource reservation).

That is, can first be processed to skip subframe, then arrange resource is accounted for certainly when specific resource excludes It removes, resource exclusion processing finally is carried out to SCI resource reservation；It excludes alternatively, can also show to accounting for resource certainly, then to skip Subframe processes, and finally carries out resource exclusion processing to SCI resource reservation.

After carrying out resource exclusion, remaining optional resource (i.e. candidate running time-frequency resource) composition is candidate in resource selection window Resource collection, when the subframe where the candidate running time-frequency resource for including in candidate resource set occupies in resource transmission chance with first The corresponding subframe of frequency resource does not overlap.

S13: it according to the size of the business of current business transmission packet and resource reservation period, is selected in candidate resource set Transmit the running time-frequency resource of current business.

After obtaining candidate resource set, it may be determined that candidate running time-frequency resource (also referred to as remaining optional money in resource selection window Source) ratio (duty ratio), process is as follows:

1) selection resource node determines the TBS of TB to be sent, and then determine according to the size of current newly arrived business packet Subchannel number；

2) according to subchannel number and the length of selection selection resource window, total resource number is determined；

3) number of optional resource is determined: traversal in each subframe, to meet the subchannel or son letter that need size Trace gather is combined into unit sliding, do not include only in subchannel or sets of sub-channels any deducted resource subchannel or Sets of sub-channels just belongs to effective sets of sub-channels；

4) according to effective sets of sub-channels and total resources number, the ratio of the optional resource of current residual is determined.

If it is determined that the ratio of the optional resource of current residual is more than or equal to preset ratio, such as 20% in resource selection window, Then ending resource exclusion process；If current transmitting-receiving node power can be improved less than 20% in the optional resource ratio of current residual Threshold value, such as power threshold is increased into 3dB, and each time resource selection when initial value be system configuration, it is subsequent to change always In generation, updates, to reduce resource multiplex range, excludes convenient for re-starting resource, until the optional resource in resource selection window Ratio be more than or equal to preset ratio.

In turn, candidate running time-frequency resource power smoothing processing resource in resource selection window not excluded, and arranged Sequence screens the wherein lower target candidate running time-frequency resource of smooth power, such as 20% running time-frequency resource that power is minimum.Its process It is as follows:

1) select candidate running time-frequency resource: remaining all running time-frequency resources after resource excludes in selection window, no matter the time-frequency Whether there is the SA being successfully decoded accordingly in the corresponding sensing window of resource.

2) average to candidate running time-frequency resource power: if resource selection UE sends service period and is more than or equal to 100ms, to survey The amount period is 100ms；If resource selection UE, which sends service period, is less than 100ms, measurement period and resource selection UE send industry The period of business is identical；(1000ms/ measurement period) secondary measurement result takes linear averaging in 1s window, such as selects multiple subchannels, Each subchannel measurement result linear averaging.It include 1000 physical sub-frames in the sensing window of 1s, the transmission subframe of UE and non- The physical sub-frame of logic subframe does not need to be monitored.As shown in fig. 6, it is to the surplus resources that resource does not exclude in selection window The schematic diagram of power smoothing processing.

3) processing of the S-RSSI metrical information of corresponding resource: the granularity of measurement is all subchannel, does not do any special place Manage, the linear averaging of general power is measured on each sub-channels, no matter the resource belongs to following any situation: 1, the resource is whole Corresponding SA is successfully decoded；2, integrally corresponding SA is not successfully decoded the resource；3, a part of subchannel of the resource is corresponding SA be successfully decoded, the corresponding SA of another part subchannel is not successfully decoded.Also without the concern for specific in each resource The difference of SA information.

Further, resource selection is carried out.

It, can be from candidate resource set i.e. according to size, resource reservation period and the number of transmissions of business transmission packet The running time-frequency resource of quantity corresponding with the number of transmissions is selected in target candidate running time-frequency resource；Wherein, when the number of transmissions is more than or equal to 2 When, the time interval between corresponding two subframes of two running time-frequency resources accordingly selected was in the resource reservation period, and two A subframe does not overlap.

For example, the number of transmissions be 2 when just/retransmission resource selection course: in 20% resource minimum from power with Machine selects 2 resources, guarantees that the interval of the two resources is in [- 15,15] subframe, and being spaced cannot be 0；The number of transmissions is 1 When just/retransmission resource selection course: only need from candidate resource randomly choose a resource.

In the embodiment of the present invention, before resource reservation period and the current business by obtaining the current business reached The first business first occupy resource transmission chance, thus according to the resource reservation period and first occupy resource transmission chance, Resource exclusion can be carried out to the running time-frequency resource in the corresponding resource selection window of current business, obtain and accounted for comprising subframe with first With the nonoverlapping candidate resource set of the subframe of the running time-frequency resource in resource transmission chance, and then selected in candidate resource set Suitable running time-frequency resource wraps to transmit the business transmission of current business, effectively avoids resource collision, reduces packet loss, improves system Performance.

Embodiment two

Based on the same inventive concept, the embodiment of the present invention also provides a kind of terminal, which can be used for executing such as Fig. 1 institute Resource selection method under the multi-service shown, as shown in fig. 6, the terminal includes transceiver 31 and processor 32.

In practical applications, transceiver 31 may include receiver and transmitter, therefore include this with transceiver 31 in Fig. 7 For two components.

In addition, can also include memory 33 in terminal, it is shown in dotted line in Fig. 7.Memory 33 can be used for storing end Various data, such as storage service data in end etc..

Transceiver 31 can be used for receiving business, such as receive multiple business (i.e. new process) that upper layer issues.

Processor 32 for determine reach current business the resource reservation period and before the current business first Business corresponding first occupies resource transmission chance, and occupies resource transmission machine according to the resource reservation period and described first Resource exclusion can be carried out to the running time-frequency resource in the corresponding resource selection window of the current business, obtain candidate resource set, And size and the resource reservation period according to the business of current business transmission packet, it is selected in the candidate resource set Select the running time-frequency resource for transmitting the current business.

Optionally, the processor 32 can be used for the resource selection parameter according to the resource reservation period and configuration, Determine the corresponding one group of running time-frequency resource transmission opportunity of each candidate's running time-frequency resource in the resource selection window；If it is determined that when candidate The corresponding one group of running time-frequency resource transmission opportunity of frequency resource and the first occupancy resource transmission chance are overlapping, exclude the resource choosing Select candidate's running time-frequency resource in window.

Optionally, the processor 32 is further used for:

Embodiment three

As shown in figure 8, the embodiment of the present invention provides a kind of terminal, which can be used for executing as shown in Figure 1 Resource selection method under multi-service, the terminal include determining module 21, resource exclusion module 22 and selecting module 23.

Specifically come first, determining module 21 is determined for the resource reservation period of the current business reached and described works as The first business corresponding first before preceding business occupies resource transmission chance；Wherein, described first resource transmission chance is occupied One group of running time-frequency resource of business transmission packet being used to indicate the selection of resource selection node, being used for transmission first business.

Resource, which excludes module 22, can be used for occupying resource transmission chance according to the resource reservation period and described first Resource exclusion is carried out to the running time-frequency resource in the corresponding resource selection window of the current business, obtains candidate resource set；Its In, when subframe and described first where the candidate running time-frequency resource that the candidate resource set includes occupy in resource transmission chance The corresponding subframe of frequency resource does not overlap.

Selecting module 23 can be used for transmitting size and the resource reservation week of packet according to the business of the current business Phase, the running time-frequency resource of the current business is transmitted in selection in the candidate resource set.

Optionally, the resource exclusion module 22 is used for: being joined according to the resource selection of the resource reservation period and configuration Number determines the corresponding one group of running time-frequency resource transmission opportunity of each candidate's running time-frequency resource in the resource selection window；If it is determined that waiting It selects the corresponding one group of running time-frequency resource transmission opportunity of running time-frequency resource and the first occupancy resource transmission chance overlapping, excludes the money Source selects candidate's running time-frequency resource in window.

Optionally, the resource exclusion module 22 is also used to: being occupied according to the resource reservation period and described first After resource carries out resource exclusion to the running time-frequency resource in the corresponding resource selection window of the current business, candidate money is obtained Before the set of source, according to the normal process of resource selection agreement, resource exclusion processing is carried out to the skip subframe in perception window, And resource exclusion processing is carried out according to scheduling control signaling SA reception and measurement information.

Optionally, the resource exclusion module 22 is also used to: being occupied according to the resource reservation period and described first Before resource carries out resource exclusion to the running time-frequency resource in the corresponding resource selection window of the current business, selected according to resource The normal process for selecting agreement carries out resource exclusion processing to the skip subframe in perception window；

And for corresponding to the current business according to the resource reservation period and the first occupancy resource After running time-frequency resource in resource selection window carries out resource exclusion, before obtaining candidate resource set, assisted according to resource selection The normal process of view carries out resource exclusion processing according to scheduling control signaling SA reception and measurement information.

Optionally, the terminal further includes processing module, for the candidate running time-frequency resource in the candidate resource set Power smooth processing is carried out, determines that smooth power is lower than the target candidate running time-frequency resource of predetermined power value.

Then, the selecting module 23 is used for: according to size, the resource reservation period and the transmission of business transmission packet Number, from the target candidate running time-frequency resource that the processing module obtains, select corresponding with the number of transmissions quantity when Frequency resource；Wherein, when the number of transmissions is more than or equal to 2, between corresponding two subframes of two running time-frequency resources accordingly selected Time interval was in the resource reservation period, and described two subframes do not overlap.

Example IV

A kind of computer installation is also provided in the embodiment of the present invention, is please referred to shown in Fig. 9, which includes processing Device 41, memory 42 and transceiver 43 can be attached between three by bus.Wherein, transceiver 43 is in processor 41 Control under send and receive data, such as send/receive SA etc., preset program, processor are preserved in memory 42 41 for realizing method provided by the embodiment of the present invention one when executing the computer program stored in memory 42 the step of.

Optionally, processor 41 specifically can be central processing unit, application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), it can be one or more integrated circuits executed for controlling program, It can be the hardware circuit of use site programmable gate array (Field Programmable Gate Array, FPGA) exploitation, It can be baseband processor.

Optionally, processor 41 may include at least one processing core.

Optionally, the memory 42 of electronic equipment may include read-only memory (Read Only Memory, ROM), with Machine accesses memory (Random Access Memory, RAM) and magnetic disk storage.Memory 42 is transported for storage processor 41 Required data when row.The quantity of memory 42 is one or more.

Embodiment five

A kind of computer readable storage medium is also provided in the embodiment of the present invention, which has Computer instruction may be implemented the present invention such as when computer instruction instruction is run on computers and implement more industry that an example provides Business under resource selection method the step of.

In embodiments of the present invention, it should be understood that disclosed network flow monitoring method and network flow monitoring system, It may be implemented in other ways.For example, apparatus embodiments described above are merely indicative, for example, unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of equipment or unit It closes or communicates to connect, can be electrical or other forms.

Each functional unit in embodiments of the present invention can integrate in one processing unit or each unit can also To be independent physical module.

It, can if integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product To be stored in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention is complete Portion or part can be embodied in the form of software products, which is stored in a storage medium, packet It includes some instructions to use so that a computer equipment, such as can be personal computer, server or the network equipment etc., Or processor (Processor) executes all or part of the steps of the method for each embodiment of the present invention.And storage above-mentioned is situated between Matter includes: general serial bus USB (Universal Serial Bus flash drive, USB), mobile hard disk, read-only Memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or The various media that can store program code such as person's CD.

Above embodiments are only used for that technical solution of the present invention is described in detail, but the explanation of above embodiments is only It is the method for being used to help understand the embodiment of the present invention, should not be construed as the limitation to the embodiment of the present invention.The art Any changes or substitutions that can be easily thought of by technical staff, should all cover within the protection scope of the embodiment of the present invention.

Claims

1. the resource selection method under a kind of multi-service characterized by comprising

Determine that the resource reservation period of current business reached and the first business corresponding first before the current business account for With resource transmission chance；Wherein, it is described first occupancy resource transmission chance be used to indicate resource selection node selection, for passing One group of running time-frequency resource of the business transmission packet of defeated first business；

Resource transmission chance is occupied according to the resource reservation period and described first to select the corresponding resource of the current business The running time-frequency resource selected in window carries out resource exclusion, obtains candidate resource set；Wherein, the time that the candidate resource set includes Subframe subframe corresponding with running time-frequency resource in the first occupancy resource transmission chance where selecting running time-frequency resource does not overlap；

According to the size of the business of current business transmission packet and the resource reservation period, in the candidate resource set The running time-frequency resource of the current business is transmitted in selection.

2. the method as described in claim 1, which is characterized in that occupy resource according to the resource reservation period and described first Transmission opportunity carries out resource exclusion to the running time-frequency resource in the corresponding resource selection window of the current business, comprising:

According to the resource reservation period and the resource selection parameter of configuration, when determining each candidate in the resource selection window The corresponding one group of running time-frequency resource transmission opportunity of frequency resource；

If it is determined that the candidate corresponding one group of running time-frequency resource transmission opportunity of running time-frequency resource and the first occupancy resource transmission chance are handed over It is folded, exclude candidate's running time-frequency resource in the resource selection window.

3. method according to claim 2, which is characterized in that provided being occupied according to the resource reservation period and described first After source transmission opportunity carries out resource exclusion to the running time-frequency resource in the corresponding resource selection window of the current business, obtain Before candidate resource set, further includes:

According to the normal process of resource selection agreement, resource exclusion processing is carried out to the skip subframe in perception window, and, according to Scheduling control signaling SA reception and measurement information carries out resource exclusion processing.

4. the method as claimed in claim 2, which is characterized in that occupied according to the resource reservation period and described first Before resource transmission chance carries out resource exclusion to the running time-frequency resource in the corresponding resource selection window of the current business, also Include:

According to the normal process of resource selection agreement, resource exclusion processing is carried out to the skip subframe in perception window.

5. the method as claimed in claim 4, which is characterized in that occupied according to the resource reservation period and described first After resource transmission chance carries out resource exclusion to the running time-frequency resource in the corresponding resource selection window of the current business, obtain Before candidate resource set, further includes:

According to the normal process of resource selection agreement, carried out at resource exclusion according to scheduling control signaling SA reception and measurement information Reason.

6. the method as described in any claim of claim 1-5, which is characterized in that described after obtaining candidate resource set Method further include:

Power smooth processing is carried out to the candidate running time-frequency resource in the candidate resource set, determines that smooth power is lower than default function The target candidate running time-frequency resource of rate value；

Then, according to the size of the business of current business transmission packet and the resource reservation period, in the candidate resource collection The running time-frequency resource of the current business is transmitted in selection in conjunction, comprising:

According to size, the resource reservation period and the number of transmissions of business transmission packet, provided from the target candidate time-frequency The running time-frequency resource of quantity corresponding with the number of transmissions is selected in source；Wherein, corresponding to select when the number of transmissions is more than or equal to 2 Time interval between corresponding two subframes of two running time-frequency resources selected was in the resource reservation period, and described two Subframe does not overlap.

7. a kind of terminal characterized by comprising

Transceiver, for receiving multiple business；

Processor, for the first business before the resource reservation period of the determining current business reached and the current business Corresponding first occupies resource transmission chance, and occupies resource transmission chance pair according to the resource reservation period and described first Running time-frequency resource in the corresponding resource selection window of the current business carries out resource exclusion, obtains candidate resource set and root Size and the resource reservation period according to the business transmission packet of the current business, select to pass in the candidate resource set The running time-frequency resource of the defeated current business；

Wherein, it is described first occupancy resource transmission chance be used to indicate resource selection node selection, be used for transmission described first One group of running time-frequency resource of the business transmission packet of business, subframe where the candidate running time-frequency resource that the candidate resource set includes with The corresponding subframe of running time-frequency resource does not overlap in the first occupancy resource transmission chance.

8. terminal as claimed in claim 7, which is characterized in that the processor is used for:

9. terminal as claimed in claim 8, which is characterized in that the processor is further used for:

Resource transmission chance is being occupied to the corresponding resource of the current business according to the resource reservation period and described first After selecting the running time-frequency resource in window to carry out resource exclusion, before obtaining candidate resource set, according to resource selection agreement Normal process, to perception window in skip subframe carry out resource exclusion processing, and, according to scheduling control signaling SA receive and Metrical information carries out resource exclusion processing.

10. terminal as claimed in claim 8, which is characterized in that the processor is further used for:

Resource transmission chance is being occupied to the corresponding resource of the current business according to the resource reservation period and described first Before selecting the running time-frequency resource in window to carry out resource exclusion, according to the normal process of resource selection agreement, to perception window In skip subframe carry out resource exclusion processing.

11. terminal as claimed in claim 10, which is characterized in that the processor is further used for:

Resource transmission chance is being occupied to the corresponding resource of the current business according to the resource reservation period and described first After selecting the running time-frequency resource in window to carry out resource exclusion, before obtaining candidate resource set, according to resource selection agreement Normal process carries out resource exclusion processing according to scheduling control signaling SA reception and measurement information.

12. the terminal as described in any claim of claim 7-11, which is characterized in that the processor is further used for:

After obtaining candidate resource set, the candidate running time-frequency resource in the candidate resource set is carried out at power smooth Reason determines that smooth power is lower than the target candidate running time-frequency resource of predetermined power value；

13. a kind of terminal characterized by comprising

Determining module, for the first industry before the resource reservation period of the determining current business reached and the current business Be engaged in it is corresponding first occupy resource transmission chance；Wherein, the first occupancy resource transmission chance is used to indicate resource selection section One group of running time-frequency resource of business transmission packet putting selection, being used for transmission first business；

Processing module, for occupying resource transmission chance to the current business according to the resource reservation period and described first Running time-frequency resource in corresponding resource selection window carries out resource exclusion, obtains candidate resource set；Wherein, the candidate resource Subframe son corresponding with running time-frequency resource in the first occupancy resource transmission chance where the candidate running time-frequency resource that set includes Frame does not overlap；

Selecting module, size and the resource reservation period for being wrapped according to the transmission of the business of the current business, described The running time-frequency resource of the current business is transmitted in selection in candidate resource set.

14. a kind of computer installation, which is characterized in that the computer installation includes processor, and the processor is for executing It is realized when the computer program stored in memory such as any claim the method in claim 1-6.

15. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to It enables, when described instruction is run on computers, so that computer executes the side as described in claim any in claim 1-6 Method.