CN106304351A

CN106304351A - A kind of method and apparatus of resource distribution

Info

Publication number: CN106304351A
Application number: CN201510280529.8A
Authority: CN
Inventors: 王文焕; 吴栓栓; 杨瑾; 黄双红; 袁明
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-05-27
Filing date: 2015-05-27
Publication date: 2017-01-04
Also published as: WO2016188250A1

Abstract

The invention discloses a kind of resource allocation methods, receive, including: first user equipment (UE), the scheduling authorization instruction information that base station issues, the resource indicated by described scheduling authorization instruction information be described base station be a described UE configuration N number of 2nd UE is sent the transmission resource that the resource indicated by resource or described scheduling authorization instruction information is N number of 2nd UE that a UE indicates；A described UE carries out distributing for the resource of described 2nd UE based on the described scheduling authorization instruction information received, or, a described UE indicates the resource of described 2nd UE based on the described scheduling authorization instruction information received to described 2nd UE；Wherein, N is the integer more than or equal to 1；Described resource at least includes PSCCH resource and PSSCH resource, described PSCCH is the physical control channel of Sidelink link, described PSSCH is that Sidelink link physical shares channel, and described Sidelink link is institute's link connection between the UE that device-to-device D2D communicates.The invention also discloses a kind of resource allocation device.

Description

A kind of method and apparatus of resource distribution

Technical field

The present invention relates to device-to-device (D2D, the Device-to-Device) communications field, particularly relate to one The method and apparatus planting resource distribution.

Background technology

In the cellular system, between two subscriber equipmenies (UE, User Equipment), has service needed During transmission, the business datum of subscriber equipment 1 (UE1) to subscriber equipment 2 (UE2), sky can be first passed through Oral instructions be defeated by community, UE1 place base station (Base Station, or referred to as evolved base station (eNB, Evolved eNB)), core net is passed through by this business data transmission to the base station of community, UE2 place in this base station, Above-mentioned business datum is passed through air interface transmission to UE2 by this base station again.The business data transmission of UE2 to UE1 is adopted By similar handling process.

And it practice, along with the variation of mobile communication business, such as, social networks, E-Payment etc. exist Application in wireless communication system is more and more extensive so that closely the business transmission demand between user is day by day Increase.Therefore, the communication pattern of device-to-device (D2D, Device-to-Device) is increasingly subject to extensively Pay close attention to.So-called D2D, refers to that business datum forwards without base station, is directly passed through by source user equipment Air interface transmission is to target UE, it is possible to referred to as adjacent service (ProSe, Proximity Service). This communication pattern is different from the communication pattern of conventional cellular systems.For the user of short-range communication, D2D not only saves radio spectrum resources, and reduces the data transmission pressure of core net.

Communicating at the D2D of LTE Release 12 Plays is broadcast communication, and according to whether has base station Participating in, D2D communicates and is divided into both of which:

Communication pattern one (Mode 1communication), refers to eNB scheduling Tx UE (sender UE) Carry out D2D data transmission (D2D data transmission), i.e. each D2D number of Tx UE transmission According to bag resource (D2D data packet resource) all by eNB configuration instruction, Tx UE Yu eNB sets up After wireless heterogeneous networks (RRC, Radio Resource Control) connects, can be at the unified tune of eNB Mode 1communication is carried out under degree；

Communication pattern two (Mode 2communication), refers at given resource pool (resource pool) In, D2D Tx UE autonomous tournament selection resource, carry out D2D data transmission.

Existing standard specifies in a PSCCH (the Physical Sidelink Control Channel) cycle A dispatching distribution (SA, Scheduling Assignment) information can be sent and be used to refer to its data resource Transmission positional information, do not support the transmission to multiple SA of the PSCCH cycle；Wherein, Sidelink For institute's link connection between the UE of D2D communication, PSCCH is physical control channel based on Sidelink link, For sending the control schedule information of D2D communication on this channel.That is specify according to existing standard, D2D UE can only service a UE within a PSCCH cycle.

In LTE Release 13, add D2D relaying (D2D relay) and many groups strengthen communication, so-called D2D Relay refers to that UE (i.e. UE in eNB coverage) is mobile in covering and causes UE and eNB Between channel degradation time, in order to ensure service seriality, base station will select by Relay UE continue and Far-end UE (Remote UE) connects；Under without covering scene, Relay UE serves as the outer UE of covering (i.e. UE outside eNB coverage) bridge that is connected with eNB.

Under D2D scene, for meeting the D2D communication constraint to service delay, D2D UE has at one Service the needs of multiple UE, such as: a D2D Relay UE is at one in the PSCCH cycle simultaneously The PSCCH cycle needs to send two SA information, transmission for Relay bag, another be used for it Own broadcast or the transmission of clean culture, more such as: D2D UE also there is a need in a PSCCH cycle send out certainly Send two SA information, one for broadcast transmission, another sends for clean culture.It is to say, from answering From the point of view of scene, there is the demand simultaneously servicing multiple UE within a PSCCH cycle in D2D UE.So And prior art is not given under D2D scene, D2D UE (including D2D Relay UE) is one Can service the solution of multiple UE in the individual PSCCH cycle, this can limit D2D communication undoubtedly simultaneously Development.

Summary of the invention

In view of this, the present invention provides the method and apparatus that a kind of resource is distributed, to realize on resource is distributed Support that D2D UE services multiple UE within a PSCCH cycle simultaneously.

For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:

The invention provides a kind of resource allocation methods, described method includes:

First user equipment UE receives the scheduling authorization instruction information that base station issues, and described scheduling authorization indicates Resource indicated by information be described base station be a described UE configuration the transmission of N number of 2nd UE is provided Resource indicated by source or described scheduling authorization instruction information is N number of 2nd UE of a described UE instruction Transmission resource；

A described UE is carried out for described 2nd UE's based on the described scheduling authorization instruction information received Resource is distributed, or, a described UE indicates information to described second based on the described scheduling authorization received UE indicates the resource of described 2nd UE；

Wherein, N is the integer more than or equal to 1；Described resource at least includes PSCCH resource and PSSCH Resource, described PSCCH is the physical control channel of Sidelink link, and described PSSCH is Sidelink Link physical shares channel, is built between the UE that described Sidelink link communicates by device-to-device D2D Link.

In such scheme, the time-domain resource of the described scheduling authorization instruction information described PSCCH of instruction is corresponding Call number x, and the time domain of the PSCCH of N number of 2nd UE of instruction of described scheduling authorization instruction embodying information The call number at resource place is: the N number of PSCCH of frequency continuous print including described call number x time The call number of territory resource.

In such scheme, a described UE is carried out for the 2nd UE based on the scheduling authorization instruction information received Resource distribution, including:

The PSSCH resource of different described 2nd UE is distributed in different subframes or distributes in same subframe Upper continuous print frequency domain position.

In the PSCCH resource distributed, a described UE sends N in N number of PSCCH resource The resource scheduling information of individual 2nd UE, the subframe of configuration retransmit time if there is N number of user at same son The situation of frame, then according to the Reference Signal Received Power RSRP between a described UE and the 2nd UE, protect Stay the distribution of re-transmission resource minimum for RSRP.

In such scheme, before a described UE receives the scheduling authorization instruction information that base station issues, institute Method of stating also includes:

A described UE sends resource request to base station, at least includes that a described UE please in described request Ask quantity M and the PSSCH resource requirement of the 2nd UE of scheduling；

Wherein, quantity N of the 2nd UE indicated in the scheduling authorization instruction information that described base station issues and institute State M identical or different.

In such scheme, the time-domain resource of the PSCCH of described N number of 2nd UE is default or base station is joined In the PSCCH resource pool put, the N number of PSCCH of frequency continuous print including described call number x time Territory resource.

Present invention also offers a kind of resource allocation methods, described method includes:

First user equipment UE selects the resource to N number of 2nd UE based on competitive way；

A described UE carries out distributing for the resource of described 2nd UE based on the resource selected；

In such scheme, described PSCCH resource is N number of frequency continuous print PSCCH resource, described PSSCH Resource is same subframe territory continuous print PSSCH resource.

In such scheme, a described UE carries out distributing for the resource of the 2nd UE based on the resource selected, Including:

In such scheme, described method also includes: a described UE is at described N number of frequency continuous print PSCCH Resource sends the data resource schedule information of the most corresponding N number of 2nd UE, described data resource schedule information The resource scheduling information of data or described N number of 2nd UE is sent to N number of 2nd UE for a described UE The resource scheduling information of data is sent to a described UE；For a described UE to N number of 2nd UE Transmission data, use time domain orthogonal or frequency domain continuous print mode to distribute described N in selected frequency domain resource The schedule information of the data of individual 2nd UE；Wherein, described N number of 2nd UE sends data to a UE Resource scheduling information in indicate described N number of 2nd UE and send required by data to a described UE Resource.

Present invention also offers a kind of resource assigned unit, described device is applied to first user equipment UE, Described device includes:

Receive unit, for receiving the scheduling authorization instruction information that base station issues, described scheduling authorization instruction letter Resource indicated by breath be described base station be described oneth UE configuration the transmission resource to N number of 2nd UE, Or N number of 2nd UE that the resource indicated by described scheduling authorization instruction information is a described UE instruction Send resource；

Resource allocation unit, for carrying out for described second based on the described scheduling authorization instruction information received The resource distribution of UE, or, described to the 2nd UE instruction based on the described scheduling authorization instruction information received The resource of the 2nd UE；

In such scheme, described resource allocation unit is further used for, by different described 2nd UE's The distribution of PSSCH resource is continuous print frequency domain position in same subframe in different subframes or distribution.

In such scheme, described resource allocation unit is further used for, in the PSCCH resource distributed, Sending the resource scheduling information of N number of 2nd UE in N number of PSCCH resource, the subframe of configuration is being retransmitted Time if there is N number of user in the situation of same subframe, then according to a described UE and the 2nd UE between Reference Signal Received Power RSRP, retain the distribution of the minimum re-transmission resource of RSRP.

In such scheme, described device also includes: transmitting element, for receiving base station at described reception unit Before the scheduling authorization instruction information issued, described transmitting element sends resource request, described request to base station In at least include quantity M of the 2nd UE and the PSSCH resource requirement of a described UE request scheduling；

Select unit, for selecting the resource to N number of 2nd UE based on competitive way；

Resource allocation unit, for carrying out the resource distribution for described 2nd UE based on the resource selected；

In such scheme, described resource allocation unit is further used for, at described N number of frequency continuous print PSCCH resource sends the data resource schedule information of the most corresponding N number of 2nd UE, and described data resource is adjusted Degree information is that a described UE sends the resource scheduling information or described N number of of data to N number of 2nd UE 2nd UE sends the resource scheduling information of data to a described UE；For a described UE to N number of The transmission data of the 2nd UE, use time domain orthogonal or frequency domain continuous print mode to divide in selected frequency domain resource Join the schedule information of the data of described N number of 2nd UE；Wherein, described N number of 2nd UE is to a UE Send and the resource scheduling information of data indicates described N number of 2nd UE to described UE transmission data Required resource.

The method and apparatus of a kind of resource provided by the present invention distribution, supported within a PSCCH cycle It is that the 2nd UE distributes N number of frequency continuous print PSCCH resource and uses in selected frequency domain resource Time domain orthogonal or frequency domain continuous P SSCH resource, so that the embodiment of the present invention can support D2D UE Servicing multiple UE within a PSCCH cycle, the development promoting D2D communication improves simultaneously；Further, By the physical resource of communication between base station scheduling equipment, the equipment that solves is due to mobile and legacy network interruption The Communication caused, by the Direct Communication between subscriber equipment, improves the coverage of base station.

Accompanying drawing explanation

Fig. 1 is the method flow schematic diagram of the resource distribution of the embodiment of the present invention one；

Fig. 2 is the method flow schematic diagram of the resource distribution of the embodiment of the present invention two；

Fig. 3 is the composition structural representation of the resource assigned unit of the embodiment of the present invention three；

Fig. 4 is the composition structural representation of the resource assigned unit of the embodiment of the present invention four；

Fig. 5 is a kind of PSCCH resource index schematic diagram of the embodiment of the present invention；

Fig. 6 is a kind of application scenarios schematic diagram of the embodiment of the present invention；

Fig. 7 is the schematic diagram of a kind of PSCCH resource pool of the embodiment of the present invention；

Fig. 8 is the schematic diagram of a kind of PSSCH resource pool of the embodiment of the present invention；

Fig. 9 is the schematic diagram that the data of a kind of two users of the embodiment of the present invention is positioned at different subframe；

The data of a kind of two users of Figure 10 position embodiment of the present invention is positioned at the schematic diagram of resource continuous P RB.

Detailed description of the invention

The technical solution of the present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.

The method of a kind of resource distribution that the embodiment of the present invention one provides, as it is shown in figure 1, the method is mainly wrapped Include:

Step 101, a UE receives the scheduling authorization instruction information that base station issues, and described scheduling authorization indicates Resource indicated by information be described base station be a described UE configuration the transmission of N number of 2nd UE is provided Resource indicated by source or described scheduling authorization instruction information is N number of 2nd UE of a described UE instruction Transmission resource.

A UE described in the embodiment of the present invention can be D2D relay UE, it is also possible to be that support is many simultaneously The D2D UE sent out.It is to say, the UE described in the embodiment of the present invention can support simultaneously for N number of 2nd UE service.

Wherein, to base station requests resource, (the 2nd UE is to first by a described UE for described 2nd UE UE sends the resource of data) time, the resource indicated by scheduling authorization instruction information that a described UE receives Transmission resource for N number of 2nd UE of a described UE instruction；A described UE provides to base station requests During source (being designated as N number of 2nd UE), indicated by the scheduling authorization instruction information that a described UE receives Resource be described base station be the oneth UE configuration the transmission resource to N number of 2nd UE.

Step 102, a described UE is carried out for described the based on the described scheduling authorization instruction information received Two UE resource distribution, or, a described UE based on receive described scheduling authorization instruction information to 2nd UE indicates the resource of described 2nd UE；

Wherein, N is the integer more than or equal to 1；Described resource at least includes PSCCH resource and PSSCH (Physical Sidelink Share Channel) resource, described PSCCH is the physics control of Sidelink link Channel processed, described PSSCH is that Sidelink link physical shares channel, and described Sidelink link is equipment Institute's link connection between the UE of equipment D2D communication.

Wherein, described scheduling authorization instruction information indicates call number x corresponding to time-domain resource of described PSCCH, And the time-domain resource place of the PSCCH of N number of 2nd UE of instruction of described scheduling authorization instruction embodying information Call number be: the time-domain resource of the N number of PSCCH of frequency continuous print including described call number x Call number.

It is to say, base station utilizes Sidelink scheduling authorization to the time-domain resource of a UE instruction PSCCH The index at place and the time-frequency domain resources of data (business datum)；Oneth UE according to the instruction of base station, Sending SA and data on corresponding running time-frequency resource, wherein, the time-domain resource of PSCCH implies N number of second The call number at the time-domain resource place of UE, its implicit call number is the SA time domain of instruction in uplink scheduling authorization The call number at resource place and the call number at frequency N continuous SA time-domain resource place thereof.Wherein, implicit Number of users N can be the first UE it is known that or can also be believed by Sidelink scheduling authorization for base station Order instruction；The money that running time-frequency resource is N number of user (the 2nd UE) of base station Sidelink scheduling authorization data Source.

In one embodiment, a described UE is carried out for the based on the scheduling authorization instruction information received The resource distribution of two UE, including:

In the PSCCH resource distributed, a described UE sends N in N number of PSCCH resource The resource scheduling information of individual 2nd UE, the subframe of configuration retransmit time if there is N number of user at same son The situation of frame, then according to the Reference Signal Received Power (RSRP) between a described UE and the 2nd UE, Only retain the distribution of re-transmission resource minimum for RSRP.Such as: the subframe of configuration retransmit time if there is two Individual user is in the situation of same subframe, then according to the RSRP measured between gained the oneth UE and the 2nd UE, Only retain the distribution that RSRP compares the re-transmission resource of relatively low user, cancel RSRP and compare higher user The distribution of re-transmission resource.The most such as: the subframe of configuration retransmit time if there is three users at same son The situation of frame, then according to the RSRP measured between gained the oneth UE and the 2nd UE, only retain RSRP The distribution of the re-transmission resource of low user, cancel user slightly higher for two other RSRP re-transmission resource point Join.

In one embodiment, before a described UE receives the scheduling authorization instruction information that base station issues, Described method also includes:

It is to say, a UE sends resource request to base station, request at least includes a described UE Quantity M of the 2nd UE of request scheduling and PSSCH resource requirement；

Base station can be according to the demand assignment resource of a UE, the user of a now UE its service known Number and data number of resources, i.e. base station are number of users and the user of UE request of a UE dispatching distribution Number is identical；Base station can also be carried out again by base station dispatcher by the number of users M of a UE request scheduling Notified the time domain of UE number of users N and PSCCH by Sidelink scheduling authorization instruction information after scheduling Call number x that resource is corresponding, i.e. base station are number of users and the use of UE request of a UE dispatching distribution Amount differs.

In one embodiment, the time-domain resource of the PSCCH of described N number of 2nd UE is default or base Stand in the PSCCH resource pool of configuration (in the pattern by certain rule generation), including described call number X is in the time-domain resource of the interior N number of PSCCH of frequency continuous print.

In one embodiment, described method also includes: a described UE is at described N number of frequency continuous print PSCCH resource sends the data resource schedule information of the most corresponding N number of 2nd UE, and described data resource is adjusted Degree information is that a described UE sends the resource scheduling information or described N number of of data to N number of 2nd UE 2nd UE sends the resource scheduling information of data to a described UE；For a described UE to N number of The transmission data of the 2nd UE, use time domain orthogonal or frequency domain continuous print mode to divide in selected frequency domain resource Join the schedule information of the data of described N number of 2nd UE；Wherein, described N number of 2nd UE is to a UE Send and the resource scheduling information of data indicates described N number of 2nd UE to described UE transmission data Required resource.

Embodiment two

The method of a kind of resource distribution that the embodiment of the present invention two provides, as in figure 2 it is shown, the method is mainly wrapped Include:

Step 201, a UE selects the resource to N number of 2nd UE based on competitive way.

Step 202, a UE carries out distributing for the resource of described 2nd UE based on the resource selected；

Wherein, described PSCCH resource is N number of frequency continuous print PSCCH resource, and described PSSCH provides Source is same subframe territory continuous print PSSCH resource.

In one embodiment, a described UE carries out the resource for the 2nd UE based on the resource selected Distribution, including:

In the PSCCH resource distributed, a described UE sends N in N number of PSCCH resource The resource scheduling information of individual 2nd UE, the subframe of configuration retransmit time if there is N number of user at same son The situation of frame, then according to the Reference Signal Received Power RSRP between a described UE and the 2nd UE, only Retain the distribution of re-transmission resource minimum for RSRP.

Embodiment three

A kind of resource assigned unit that the embodiment of the present invention three provides, is applied to a UE, as it is shown on figure 3, This device specifically includes that

Receiving unit 10, for receiving the scheduling authorization instruction information that base station issues, described scheduling authorization indicates Resource indicated by information be described base station be a described UE configuration the transmission of N number of 2nd UE is provided Resource indicated by source or described scheduling authorization instruction information is N number of 2nd UE of a described UE instruction Transmission resource；

Resource allocation unit 20, for carrying out for described the based on the described scheduling authorization instruction information received The resource distribution of two UE, or, indicate to the 2nd UE based on the described scheduling authorization instruction information received The resource of described 2nd UE；

In one embodiment, described scheduling authorization instruction information indicates the time-domain resource pair of described PSCCH Call number x answered, and the PSCCH of N number of 2nd UE of instruction of described scheduling authorization instruction embodying information The call number at time-domain resource place is: the N number of PSCCH of frequency continuous print including described call number x The call number of time-domain resource.

In one embodiment, described resource allocation unit 20 is further used for, by different described second The PSSCH resource distribution of UE is continuous print frequency domain position in same subframe in different subframes or distribution.

In one embodiment, described resource allocation unit 20 is further used for, at the PSCCH distributed In resource, N number of PSCCH resource sends the resource scheduling information of N number of 2nd UE, the son of configuration Frame when retransmitting if there is N number of user in the situation of same subframe, then according to a described UE and second Reference Signal Received Power RSRP between UE, only retains the distribution of re-transmission resource minimum for RSRP.

In one embodiment, described device also includes: transmitting element 30, at described reception unit 10 Before receiving the scheduling authorization instruction information that base station issues, described transmitting element 30 sends resource request to base station, Described request at least includes quantity M and the PSSCH money of the 2nd UE of a described UE request scheduling Source demand；

In one embodiment, the time-domain resource of the PSCCH of described N number of 2nd UE is default or base Stand in the PSCCH resource pool of configuration, the N number of PSCCH of frequency continuous print including described call number x Time-domain resource.

In one embodiment, resource allocation unit 20 is further used for, at described N number of frequency continuous print PSCCH resource sends the data resource schedule information of the most corresponding N number of 2nd UE, and described data resource is adjusted Degree information is that a described UE sends the resource scheduling information or described N number of of data to N number of 2nd UE 2nd UE sends the resource scheduling information of data to a described UE；For a described UE to N number of The transmission data of the 2nd UE, use time domain orthogonal or frequency domain continuous print mode to divide in selected frequency domain resource Join the schedule information of the data of described N number of 2nd UE；Wherein, described N number of 2nd UE is to a UE Send and the resource scheduling information of data indicates described N number of 2nd UE to described UE transmission data Required resource.

Embodiment four

A kind of resource assigned unit that the embodiment of the present invention four provides, is applied to a UE, as shown in Figure 4, This device specifically includes that

Select unit 40, for selecting the resource to N number of 2nd UE based on competitive way；

Resource allocation unit 50, for carrying out the resource distribution for described 2nd UE based on the resource selected；

In one embodiment, described resource allocation unit 50 is further used for, by different described second The PSSCH resource distribution of UE is continuous print frequency domain position in same subframe in different subframes or distribution.

In one embodiment, described resource allocation unit 50 is further used for, at the PSCCH distributed In resource, N number of PSCCH resource sends the resource scheduling information of N number of 2nd UE, the son of configuration Frame when retransmitting if there is N number of user in the situation of same subframe, if it is discontinuous to retransmit time-frequency domain resources, Then according to the RSRP between a described UE and the 2nd UE, only retain re-transmission resource minimum for RSRP Distribution.

In one embodiment, described resource allocation unit 50 is further used for, in described N number of frequency even Continuous PSCCH resource sends the data resource schedule information of the most corresponding N number of 2nd UE, described data Resource scheduling information is that a described UE sends resource scheduling information or the institute of data to N number of 2nd UE State N number of 2nd UE and send the resource scheduling information of data to a described UE；For a described UE To the transmission data of N number of 2nd UE, use time domain orthogonal or frequency domain continuous print in selected frequency domain resource Mode distributes the schedule information of the data of described N number of 2nd UE；Wherein, described N number of 2nd UE is to The resource scheduling information of one UE transmission data indicates described N number of 2nd UE send out to a described UE Send the resource required by data.

In sum, previous embodiment elaborate base station be the oneth UE configuration resource and a UE from Preset in resource and select resource both embodiments by competitive way.No matter which kind of mode to obtain resource with, Embodiments of the invention all support to be that the 2nd UE distributes N number of frequency continuous print within a PSCCH cycle PSCCH resource and use time domain orthogonal or frequency domain continuous P SSCH resource in selected frequency domain resource, So that the embodiment of the present invention can to support that D2D UE serviced within a PSCCH cycle simultaneously multiple UE, the development promoting D2D communication improves.

The method and apparatus that the resource distribution of the embodiment of the present invention is expanded on further below in conjunction with concrete example.

It should be noted that the base station described in the embodiment of the present invention includes at least one in following equipment: base Stand (NodeB), evolution base station (eNodeB), home evolved node B (Home eNodeB), miniature evolution Base station (pico eNodeB), relay station (Relay).The embodiment of the present invention is applicable to cover interior UE A for covering Multiple UE (such as UE B, UE C, UE D) outside lid provide Relay service, or, UE A in covering Communicate with multiple UE (such as UE B, UE C, UE D) simultaneously, or, cover outer UE A simultaneously Service for multiple UE (such as UE B, UE C, UE D).

In the example below, it is designed as with the pattern of SA in LTE Release 12 (i.e. PSCCH resource) Example illustrates, but is not limited only to this.The index design rule of SA resource pool: s is 0 and floor (Nf/2) * the number between Nt, index=s after generation.Wherein, Nf is the frequency resource number of SA resource pool, Nt For the number of subframes of SA resource pool, floor represents and rounds downwards.

SA resource pattern is defined as:

Send for the first time

\begin{matrix} n_{t_{1}} = \mod (s, N_{t}) \\ n_{f_{1}} = floor (s / N_{t}) \end{matrix},

Second time sends

\begin{matrix} n_{t_{2}} = \mod (s + \mod (floor (s / N_{t}), N_{s}) + 1, N_{t}) \\ n_{f_{2}} = floor (N_{f} / 2) + n_{f 1} \end{matrix},

Wherein, N_s=N_t-1.Nt is the number of subframes of SA resource pool, and the value of Ns is SA resource pool Number of subframes subtracts 1.

Pattern according to above formula generation is as shown in Figure 5.

It addition, the signal of a kind of PSCCH resource pool and PSSCH resource pool sees Fig. 7 and Fig. 8 institute respectively Show.

Embodiment five

The application scenarios of the embodiment of the present invention five may refer to Fig. 6, in covering UE A be the UE B outside covering, UE C, UE D provide Relay service, and UE A now is referred to as D2D Relay UE.Embodiment five Specific implementation process includes:

1) multiple far-end UE (such as UE B, UE C, UE D) please to D2D Relay UE proposition resource Ask, or D2D UE A self have communication need (UE A now is referred to as supporting multiple UE A simultaneously), Or D2D Relay UE is according to demand to multiple UE repeating base station data；

2) D2D Relay UE or support simultaneously multiple UE A to eNodeB send D2D resource request；

3) eNodeB is by for D2D Relay UE or support that multiple D2D UE configuration sends money simultaneously Source, as by Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) Or enhancement mode Physical Downlink Control Channel (EPDCCH, Enhanced Physical Downlink Control Channel) issue, for D2D Relay UE or support the PSCCH index needed for multiple UE configuration simultaneously (index) and the related control information of its required D2D data transmission and resource allocation information. Wherein, the resource of configuration information instruction can be the resource pool of Mode1 or Mode2, eNodeB carry out Select.Such as D2D Relay UE or support multiple UE request service two D2D UE, its PSCCH simultaneously Index=0, the related control information of its data transmission includes the data issuing two UE The control information of transmission.As shown in table 1 below, DCI format 5, SCI indicate two serviced The control information of the data resource of UE, SA resource index indicates the PSCCH time domain configured and frequency Territory resource, the index as indicated by Fig. 5 and Fig. 7.

Table 1

Wherein, D2D Relay UE or simultaneously support that multiple UE receives PDCCH or EPDCCH, as Index=0, its resource required is 2 users, then give tacit consent to Physical Resource Block (PRB, Physical Resource Block) continuous print next one resource is also allocated to Relay UE or supports multiple UE, i.e. simultaneously The PSCCH resource of index=0, index=4 can be as the PSCCH money of Relay UE two UE of service The resource in source, i.e. index=0 is for D2D Relay UE or supports that multiple UEA sends out to UE B simultaneously The resource sending PSCCH, index=4 for D2D Relay UE or supports that multiple UEA is to UE C simultaneously Send PSCCH, and a part for the data transmission resource configured by SCI instruction according to base station For UE B, a part is for UE C；

Communication need (UE A now is referred to as supporting multiple UE A simultaneously) self is had for D2D UE A, Or D2D Relay UE is according to demand to the situation of multiple UE repeating base station data, the data of its base station configuration Transmission resource is by D2D Relay UE or supports that multiple UE A is continuous or sub according to frequency domain simultaneously The orthogonal principle of frame, in corresponding resource, it is sent to user B and user C by PSCCH instruction.And Receive what the D2D Relay UE for far-end UE request transmission indicated according only to base station scheduling information Index=0, sends for the schedule information of far-end UE B, Yi Ji on the PSCCH of index=0 The schedule information for far-end UE C is sent on the PSCCH of index=4；And far-end UE B and UE C root The schedule information resolved according to the PSCCH receiving D2D Relay UE sends data in corresponding resource.

If index=0, its resource required is 3 users, then two resources under acquiescence PRB continuous print Also being allocated to oneself, i.e. the PSCCH resource of index=0, index=4, index=8 can be as Relay The PSCCH resource of UE three UE of service, i.e. the resource of index=0 is for the transmission of UE B, index=4 Resource for the transmission of UE C, the resource of index=8 is for the transmission of UE D, and is indicated by SCI A part for data transmission resource according to base station configuration is used for UE C for UE B, a part, A part is positioned at different subframe such as Fig. 9 for UE D, the PSSCH of two user, or same subframe Such as Figure 10 in continuous P RB, i.e. the startPRB that endPRB+1 is UE C of UE B.

It addition, D2D UE A oneself has communication need, send data according to SCI instruction in corresponding resource Information.

There is also another kind of application scenarios, multiple far-end UE propose communication request to D2D Relay UE, D2D Relay UE sends UE B, UE C, (D2D Relay UE please to base station for the control information of UE D Ask for UE B, UE C, UE D distribution send resource, i.e. base station by D2D Relay UE be UE B, UE C, UE D configure resource), D2D Relay UE does not sends out in the relevant position of described control information instruction Send data, and UE B, UE C, UE D send in the position that its SCI indicates according to the control information resolved data。

4) UE B and UE C or resolve index=0 and index=4 or plus index=8 plus UE D Channel knows its data transmission resource, the D2D Relay UE or D2D UE A of repeating base station information Communication need, UE B, UE C, UE D detection PSCCH oneself is had to specify according to resolving SCI information Resource on receive data.Multiple far-end UE to D2D Relay UE propose communication request, UE B, UE C, UE D sends out in corresponding resource according to the PSCCH resolved, the position UE B of its instruction, UE C, UE D Send data.

If Relay UE A or support simultaneously number of users that multiple UE A asks more than or etc. a SA The number of sub frames in cycle, such as Fig. 5, the number of users that request is supported is 4, and the resource of frequency continuous dispensing is 4 PRB, i.e. index=0, index=4, index=6, index=12, its re-transmission resource in a subframe such as Really this time-frequency domain resources is discontinuous, as index=0 and index=12 frequency domain is discontinuous, in order to ensure up list Carrier characteristics, can be placed on index=0 according to the RSRP of reporting of user by preferable for link-quality user Or index=12 location resource, it can select not send, as between UE C user and UE A when retransmitting Link-quality optimum, the PSCCH of UE C is dispatched in the resource of index=0 by UE A, is retransmitting Time second subframe index=0 do not send.

Embodiment six

The specific implementation process of embodiment six includes:

1) multiple far-end UE propose resource request to D2D Relay UE, or D2D UE A self has logical News demand, or D2D Relay UE is according to demand to multiple UE repeating base station data；

2) to D2D Relay UE or support simultaneously multiple UE A to base station send request；Solicited message Including at least including supported remote subscriber number, and need the resource size of application according to demand.

2) eNodeB is by for D2D Relay UE or support that multiple UE A configuration sends resource simultaneously The instruction of PSCCH channel resource and data resource, as issued by PDCCH or EPDCCH.Its configuration The PSCCH index that at least includes for Relay UE or simultaneously supporting control resource needed for multiple UE and Associated resource information and the configuration resource sent as required of its required D2D data transmission take The number of users UE Numbers of business.Such as Relay UE or support that multiple UE supports three D2D of service simultaneously UE, and base station dispatcher is only its two PSCCH resources of configuration, needs the number of users of instruction configuration resource (UE Numbers), sees table 2 below, and the related control information (SCI) of its data transmission includes Issue the running time-frequency resource instruction information of the data transmission of two UE.

Table 2

Wherein, the bit figure place of UE Numbers can be extended, shown in table 2 according to the number of users supported 2bit maximum can support 4 users.

3) D2D Relay UE A or simultaneously support that multiple UE A receives PDCCH or EPDCCH, as Index=0, and UE Numbers is 2 users, then the PSCCH of the index instruction of acquiescence SA resource The next continuous print PSCCH information of channel is also allocated to D2D Relay UE A or supports multiple simultaneously UE A, i.e. the PSCCH resource of index=0, index=4 can service two as Relay UE The PSCCH resource of UE, i.e. the resource of index=0 is for D2D Relay UE A or supports multiple simultaneously UE A or supports for D2D Relay UE to the resource of the transmission PSCCH, index=4 of UE B simultaneously Multiple UE A is to the transmission PSCCH of UE C, and the base station indicated by the SCI of parsing is repeating base station The D2D Relay UE of data or simultaneously support data transmission resource that multiple UE A configures A part is for repeating base station data D2D Relay UE or supports that multiple UE A sends to UE B simultaneously Data, a part is for repeating base station data D2D Relay UE or supports that multiple UE A is to UE C simultaneously Send data.Its data sent to two users by PSCCH instruction will by D2D Relay UE or Support that multiple UE A distributes simultaneously and be positioned at different subframe such as Fig. 9, or in continuous P RB of same subframe such as The startPRB that endPRB+1 is UE C of Figure 10, i.e. UE B.And receive and far-end UE request is sent out The index=0 that the D2D Relay UE sent indicates according only to base station scheduling information, at the PSCCH of index=0 Upper transmission is used for for the schedule information and sending on the PSCCH of index=4 of remote subscriber UE B The schedule information of remote subscriber UE C, and remote subscriber UE B and UE C is according to receiving D2D Relay UE PSCCH resolve schedule information in corresponding resource, send data.

If index=0, itself and UE Numbers are 3, then under acquiescence PRB continuous print, two resources are also Distributing to oneself, i.e. index=0, the PSCCH resource of index=4, index=8 can be as D2D Relay The PSCCH resource of UE three UE of service, i.e. the resource of index=0 is sent out for the control information of UE B Sending, the resource of index=4 sends for the control information of UE C, and the resource of index=8 is for UE D's Control information sends, and is used for according to a part for the data transmission resource of base station configuration SCI instruction UE B, a part is for UE C, and a part is for UE D.

It addition, D2D UE A oneself has communication need or the D2D of the information to multiple far-end UE repeating base stations Relay UE, sends data information according to PSCCH instruction in corresponding resource.

There is also another kind of application scenarios, multiple far-end UE propose communication request to D2D Relay UE, D2D Relay UE sends UE B, UE C, (D2D Relay UE please to base station for the control information of UE D Ask for UE B, UE C, UE D distribution send resource, i.e. base station by D2D Relay UE be UE B, UE C, UE D configure resource), D2D Relay UE does not sends out in the relevant position of described control information instruction Send data, and the control information that UE B, UE C, UE D resolve according to PSCCH is in its position indicated Send data.

4) UE B and UE or resolve index=0 and index=4 or plus the letter of index=8 plus UE D Its data transmission resource is known in road, the D2D Relay UE or D2D UE A of repeating base station information Oneself having communication need, UE B, UE C, UE D resolve SCI information according to PSCCH instruction and are specifying Resource on receive data.Multiple far-end UE to D2D Relay UE propose communication request, UE B, UE C, UE D detection PSCCH the SCI according to parsing, the position UE B of its instruction, UE C, UE D are in phase The resource answered sends data.

If D2D Relay UE A or support simultaneously number of users that multiple UE A asks more than or etc. one The number of sub frames in SA cycle, such as Fig. 5, the number of users that request is supported is 4, and the resource of frequency continuous dispensing is 4 Individual PRB, i.e. index=0, index=4, index=8, index=12, its re-transmission resource is in a subframe If index=0 and index=12 is in order to ensure uplink single-carrier property, can according to the RSRP of reporting of user, Preferable for link-quality user is placed on index=0 or index=12 location resource, and it can select when retransmitting Not sending, as the link-quality between UE C user and UE A is optimum, UE A is by the PSCCH of UE C Scheduling is in the resource of index=0, and when retransmitting, second subframe index=1 does not sends.

Embodiment seven

Without covering scene, support that multiple D2D UE A is from main separation resource, being embodied as of embodiment seven Process includes:

1) supporting that multiple D2D UE A randomly chooses the resource of Mode 2 resource pool, selection principle is choosing Select SA resource pool same subframe continuous print SA resource and be sent to the control channel of each far-end UE as it PSCCH, indicates the schedule information of its data in each PSCCH to its each user serviced, such as money Source instructions etc., it can be continuous print PRB in frequency to the data resource of the transmission of multiple users, frequency domain Discontinuous PRB need to ensure orthogonal at subframe.

As supported, multiple D2D UE A needs to service two D2D UE, randomly chooses continuous SA resource pool Continuous print PSCCH resource distributes to two UE of its service, as selected index 4, index 8 as UE The PSCCH of B, UE C, and the PSSCH distributing two users is positioned at different subframe such as Fig. 9, or same Such as Figure 10 in continuous P RB of subframe, i.e. the startPRB that endPRB+1 is UE C of UE B.

D2D UE A, sends D2D according to PSCCH and the PSSCH resource randomly choosed on PSCCH UE B and the control information of D2D UE C, and carry out data communication on its resource location indicated.They are two years old The resource instruction of individual user is that its PSSCH resource selected is not connected by continuous print PRB in frequency, frequency domain At subframe, continuous PRB need to ensure that orthogonal principle distributes to two users.

It should be noted that in no matter above-described embodiment covers or outside covering, establishing all users' After data resource, as eNodeB is assigned with its data resource dispatching user, or D2D UE by DCI Being assigned with the data resource of user scheduled in it, D2D Relay UE or D2D UE passes through N number of PSCCH Channel is each user resource allocation, and principle of its distribution is that the time-domain resource of user of its service is orthogonal or frequency Territory resource is continuous, such as Fig. 9 and as shown in Figure 10.

In sum, embodiment of the present invention support is that the 2nd UE distribution is N number of within a PSCCH cycle Frequency continuous print PSCCH resource and use time domain orthogonal or frequency domain continuous in selected frequency domain resource PSSCH resource, so that the embodiment of the present invention can support that D2D UE is within a PSCCH cycle Servicing multiple UE, the development promoting D2D communication improves simultaneously；By communication between base station scheduling equipment Physical resource, solve the interference problem of communication in the communication of equipment room and legacy network, it is achieved that user Direct Communication between equipment, improves spectrum efficiency.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can use hardware embodiment, software implementation or combine software and The form of the embodiment of hardware aspect.And, the present invention can use and wherein include calculating one or more The computer-usable storage medium of machine usable program code (includes but not limited to disk memory and optical storage Device etc.) form of the upper computer program implemented.

The present invention is with reference to method, equipment (system) and computer program according to embodiments of the present invention Flow chart and/or block diagram describe.It should be understood that can be by computer program instructions flowchart and/or side Flow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or the knot of square frame Close.Can provide these computer program instructions to general purpose computer, special-purpose computer, Embedded Processor or The processor of other programmable data processing device is to produce a machine so that by computer or other can The instruction that the processor of programming data processing equipment performs produces for realizing in one flow process or multiple of flow chart The device of the function specified in flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device In the computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produces the manufacture including command device, and this command device realizes at one flow process of flow chart or multiple stream The function specified in journey and/or one square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, makes Sequence of operations step must be performed to produce computer implemented process on computer or other programmable devices, Thus the instruction performed on computer or other programmable devices provides for realizing in one flow process of flow chart Or the step of the function specified in multiple flow process and/or one square frame of block diagram or multiple square frame.

The above, only presently preferred embodiments of the present invention, it is not intended to limit the protection model of the present invention Enclose.

Claims

1. a resource allocation methods, it is characterised in that described method includes:

Resource allocation methods the most according to claim 1, it is characterised in that described scheduling authorization instruction letter Cease call number x that the time-domain resource of the described PSCCH of instruction is corresponding, and described scheduling authorization instruction embodying information The call number at time-domain resource place of PSCCH of N number of 2nd UE of instruction be: include described call number x Call number in the time-domain resource of the interior N number of PSCCH of frequency continuous print.

Resource allocation methods the most according to claim 2, it is characterised in that a described UE is based on receipts To scheduling authorization instruction information carry out for the 2nd UE resource distribute, including:

5. according to resource allocation methods described in any one of Claims 1-4, it is characterised in that described Before one UE receives the scheduling authorization instruction information that base station issues, described method also includes:

Resource allocation methods the most according to claim 2, it is characterised in that described N number of 2nd UE The time-domain resource of PSCCH be default or in the PSCCH resource pool of base station configuration, including described index Number x is in the time-domain resource of the interior N number of PSCCH of frequency continuous print.

7. a resource allocation methods, it is characterised in that described method includes:

Resource allocation methods the most according to claim 7, it is characterised in that described PSCCH resource is N number of frequency continuous print PSCCH resource, described PSSCH resource is same subframe territory continuous print PSSCH money Source.

Resource allocation methods the most according to claim 8, it is characterised in that a described UE is based on choosing The resource selected carries out distributing for the resource of the 2nd UE, including:

Resource allocation methods the most according to claim 8, it is characterised in that a described UE based on The resource selected carries out distributing for the resource of the 2nd UE, including:

Resource allocation methods described in 11. according to Claim 8,9 or 10, it is characterised in that described method Also include: a described UE sends the most corresponding N number of in described N number of frequency continuous print PSCCH resource The data resource schedule information of the 2nd UE, described data resource schedule information is that a described UE is to N number of Resource scheduling information or described N number of 2nd UE of the 2nd UE transmission data send to a described UE The resource scheduling information of data；For a described UE to the transmission data of N number of 2nd UE, selected The frequency domain resource employing time domain orthogonal selected or frequency domain continuous print mode distribute the data of described N number of 2nd UE Schedule information；Wherein, described N number of 2nd UE sends the resource scheduling information middle finger of data to a UE Show that described N number of 2nd UE sends the resource required by data to a described UE.

12. 1 kinds of resource assigned units, it is characterised in that described device is applied to first user equipment UE, Described device includes:

13. according to resource assigned unit described in claim 12, it is characterised in that described scheduling authorization refers to Show call number x that the time-domain resource of the information described PSCCH of instruction is corresponding, and described scheduling authorization instruction information The call number at the time-domain resource place of the PSCCH of implicit N number of 2nd UE of instruction is: include described rope Quotation marks x is in the call number of the time-domain resource of the interior N number of PSCCH of frequency continuous print.

14. according to resource assigned unit described in claim 13, it is characterised in that the distribution of described resource is single Unit is further used for, and distributes the PSSCH resource of different described 2nd UE in different subframes or distribution Continuous print frequency domain position in same subframe.

15. according to resource assigned unit described in claim 13, it is characterised in that the distribution of described resource is single Unit is further used for, and in the PSCCH resource distributed, sends N number of in N number of PSCCH resource The resource scheduling information of the 2nd UE, the subframe of configuration retransmit time if there is N number of user in same subframe Situation, then according to the Reference Signal Received Power RSRP between a described UE and the 2nd UE, retain The distribution of the re-transmission resource that RSRP is minimum.

16. according to resource assigned unit described in any one of claim 12 to 15, it is characterised in that institute State device also to include: transmitting element, for receiving, at described reception unit, the scheduling authorization instruction that base station issues Before information, described transmitting element sends resource request to base station, at least includes described first in described request Quantity M of the 2nd UE of UE request scheduling and PSSCH resource requirement；

17. according to resource assigned unit described in claim 13, it is characterised in that described N number of second The time-domain resource of the PSCCH of UE is default or in the PSCCH resource pool of base station configuration, including described Call number x is in the time-domain resource of the interior N number of PSCCH of frequency continuous print.

18. 1 kinds of resource assigned units, it is characterised in that described device is applied to first user equipment UE, Described device includes:

19. according to resource assigned unit described in claim 18, it is characterised in that described PSCCH provides Source is N number of frequency continuous print PSCCH resource, and described PSSCH resource is same subframe territory continuous print PSSCH Resource.

20. according to resource assigned unit described in claim 19, it is characterised in that the distribution of described resource is single Unit is further used for, and distributes the PSSCH resource of different described 2nd UE in different subframes or distribution Continuous print frequency domain position in same subframe.

21. according to resource assigned unit described in claim 19, it is characterised in that the distribution of described resource is single Unit is further used for, and in the PSCCH resource distributed, sends N number of in N number of PSCCH resource The resource scheduling information of the 2nd UE, the subframe of configuration retransmit time if there is N number of user in same subframe Situation, then according to the Reference Signal Received Power RSRP between a described UE and the 2nd UE, retain The distribution of the re-transmission resource that RSRP is minimum.

22. according to resource assigned unit described in claim 19,20 or 21, it is characterised in that described Resource allocation unit is further used for, and sends correspondence respectively in described N number of frequency continuous print PSCCH resource The data resource schedule information of N number of 2nd UE, described data resource schedule information is that a described UE is to N Resource scheduling information or described N number of 2nd UE of individual 2nd UE transmission data send out to a described UE Send the resource scheduling information of data；For a described UE to the transmission data of N number of 2nd UE, in institute The frequency domain resource selected uses the data that time domain orthogonal or frequency domain continuous print mode distribute described N number of 2nd UE Schedule information；Wherein, described N number of 2nd UE sends in the resource scheduling information of data to a UE Indicate described N number of 2nd UE and send the resource required by data to a described UE.