CN103229582B - Method for resource competition, and method and device for utilization of resource competition - Google Patents

Abstract

The invention provides a method for a resource competition and a piece of user equipment, and a method and device for utilization of the resource competition, and enables the resource competition problem to be solved. The resource competition method includes: selecting a sending opportunity frame including a monitoring-preempting subframe and a transmission subframe, wherein the monitoring-preempting subframe includes a plurality of preemption time slots; determining that the selected discovery resources are exclusive discovery resources through analysis of the states of different pieces of user equipment on the plurality of preemption time slots of the monitoring-preempting subframe; and sending an adjacent identity indication code on the exclusive discovery resources through the transmission subframe. The method for the utilization of the resource competition includes: receiving the sending opportunity frame sent by the UE; determining the occupancy state or the idle state of the discovery resources according to the sending opportunity frame; and scheduling the idle discovery resources. The above-mentioned technical scheme enables the problem that collision frequency is too high in a resource competition so that emission times and power consumption of the UE are reduced.

Description

The method of resource contention, method and its device using resource contention

Technical field

The present invention relates to wireless communication field, and method more particularly, to resource contention, using resource contention Method and its device.

Background technology

It is neighbouring to be the discovery that a kind of mutually adjacent characteristic using two or more terminal devices geographically, The technology communicated between terminal device.Neighbouring discovery technique has as the important component for building following local network Many application scenarios, for example：In the middle of social networking application, for the friend near finding or have what same interest was liked People；In the middle of advertisement applications, look at nearby there is which sales promotion information；In the middle of location Based service, the restaurant near inquiry Deng.

Firstly the need of by the interaction nearly identity indication code of neck between terminal device in neighbouring discovery technique（English is Device To Device code, are abbreviated as D2Dcode）Subsequent applications can just be carried out.However, in a network for no center control node In, each network node is all equality, and node takes resource and uses C SMA/CD（English is Carrier Sense Multiple Access/Collision Detect, Chinese is csma/collision detection）Mode.The skill The principle of art is：Whether node first intercepts channel before data are sent idle, sends data immediately if the free time；Sending data When, continue to intercept when sending；If listening to conflict, stop sending data immediately；One section of random time is waited, then is tasted again Examination.

Network node is not still avoided that the resource of the transmission data that subsequent time is obtained is exclusive after intercepting, and And node is more, data are more, the probability of collision is bigger, it is necessary to backoff is retransmitted.Repeatedly retransmitting can severe attrition The power consumption of user equipment.Thus, it is desirable to a kind of method for solving resource contention, saves the work(as the user equipment of terminal node Consumption.

The content of the invention

In view of this, the embodiment of the present invention provides a kind of method and apparatus of resource contention, to solve asking for resource contention Topic, also provided is using the method and apparatus of resource contention.

A kind of first aspect, there is provided method of resource contention, selects send opportunity frame, wherein send opportunity frame to include prison Subframe and transmission subframe are listened-seized, is monitored-is seized subframe and seize time slot including multiple；The many of subframe are monitored-seize by analysis The individual state for seizing different user devices on time slot, the discovery resource for determining selection is exclusive discovery resource；By transmitting son Frame sends neighbouring identity indication code in exclusive discovery resource.

In the first possible implementation, by the preempting resources for selecting, in multiple seizes time slot at least one Sequence is seized in the transmission on time slot of seizing of individual transmission state, and when seizing of at least one of time slot listening state is seized in multiple Other UE are listened in gap and does not select identical preempting resources, it is determined that the preempting resources of selection are corresponding to find that resource is only There is one-to-one relationship with discovery resource in the discovery resource for accounting for, wherein preempting resources.

With reference to the first possible implementation of first aspect, in second possible implementation, robbed in multiple Account for seizing on time slot at least one of time slot listening state to listen to other UE and have selected identical preempting resources, then no longer Sequence is seized in the transmission on time slot of seizing of follow-up transmission state.

With reference to the first or second possible implementation of first aspect, in the third possible implementation, By select preempting resources, multiple seize at least one of time slot send state seize on time slot with use base station energy The power for enough listening to sends and seizes sequence.

With reference to the possible implementation of any of the above-described of first aspect or first aspect, the 4th kind of possible realization side In formula, the number of time slot is seized, be that the probability joint monitored or send according to the selection of k and UE determines, according to wherein k What parameter lambda and threshold percentage A determined at most allows to select the UE numbers of identical discovery resource, and threshold percentage A is a hair There is the probability of multiple UE in existing resource, parameter lambda is that competition finds the UE numbers of resource and finds the ratio of resource number.

With reference to the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation, time slot is seized The summation of number of time slots of the number for needed for k UE collision solves to 2 UE collisions to solve, k >=2.

With reference to the possible implementation of any of the above-described of first aspect or first aspect, the 6th kind of possible realization side In formula, monitor-seize subframe transmit subframe before, and monitor-seize subframe and transmission subframe between also have honeycomb sub-frame interval.

With reference to first aspect, first to the 5th kind of any one of possible implementation of first aspect, can at the 7th kind In the implementation of energy, subframe is monitored-seized before subframe is transmitted, monitoring-seize between subframe and transmission subframe does not have honeycomb Sub-frame interval, all of UE seize sequence will by monitor-seize first of subframe seize time slot send once.

A kind of second aspect, there is provided method of utilization resource contention, including：The send opportunity frame that UE sends is received, its Middle send opportunity frame includes monitoring-seizing subframe and transmission subframe, monitors-seizes subframe and seize time slot including multiple；According to hair Chance frame is sent, it is determined that finding the seizure condition or idle condition of resource；Dispatch idle discovery resource.

In the first possible implementation, receive preempting resources of the UE by selection, send opportunity frame monitoring- Seize subframe seize on time slot send seize sequence；According to send opportunity frame, it is determined that finding the seizure condition or sky of resource Not busy state includes：Determine that the preempting resources of selection are corresponding and find that resource is seizure condition, others find that resource is idle shape There is one-to-one relationship with discovery resource in state, preempting resources.

With reference to the first possible implementation of second aspect, in second possible implementation, monitor-seize Subframe transmit subframe before, monitor-seize subframe and transmission subframe between also have honeycomb sub-frame interval.

Any one of the first possible implementation with reference to second aspect, second aspect, in the third possible reality In existing mode, subframe is monitored-seized before subframe is transmitted, monitor-seize between subframe and transmission subframe between not having honeycomb subframe Seizing sequence and to seize time slot by monitoring-seize first of subframe and send once every, all of UE.

A kind of third aspect, there is provided user equipment, including select unit, determining unit and transmitting element：Select unit, For selecting send opportunity frame, wherein send opportunity frame to include monitoring-seizing subframe and transmission subframe, subframe bag is monitored-seized Include multiple and seize time slot；Determining unit, the multiple for being monitored-being seized subframe by analysis seizes different user devices on time slot State, determine it is selected discovery resource be exclusive discovery resource；Transmitting element, for by transmitting subframe exclusive It was found that sending neighbouring identity indication code in resource.

In the first possible implementation, user equipment also includes monitoring unit：Transmitting element is specifically for passing through Sequence is seized in the preempting resources of selection, the transmission on time slot of seizing for seizing at least one of time slot transmission state in multiple, and Monitoring unit listens to other UE and has specifically for seizing seizing on time slot at least one of time slot listening state in multiple Without selection identical preempting resources, determining unit is seized at least one of time slot and is monitored specifically for monitoring unit in multiple When the seizing on time slot of state listens to other UE and does not select identical preempting resources, according to preempting resources with find resource and deposit One-to-one relationship, then by the preempting resources of selection it is corresponding find resource be defined as exclusive discovery resource.

With reference to the third aspect, in second possible implementation, user equipment also includes control unit, control unit Listen to other UE and do not have for seizing seizing on time slot at least one of time slot listening state in multiple in monitoring unit During selection identical preempting resources, control transmitting element no longer seizes sequence in the transmission on time slot of seizing of follow-up transmission state Row.

With reference to the first or second possible implementation of the third aspect, in the third possible implementation, Transmitting element seizes at least one of time slot and sends when seizing of state specifically for the preempting resources by selection, in multiple Sent with the power that can be listened to using base station in gap and seize sequence.

With reference to the first or second possible implementation of the third aspect, in the 4th kind of possible implementation, Select unit is specifically for selecting following send opportunity frame：The number of time slot is seized in send opportunity frame, is for according to k and UE Selection monitor or the probability joint that sends determines, wherein k is at most to be permitted according to what parameter lambda and threshold percentage A determined Perhaps the UE numbers of identical discovery resource are selected, threshold percentage A is a probability for finding there are multiple UE in resource, and parameter lambda is Competition finds the UE numbers of resource and finds the ratio of resource number.

With reference to the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation, select unit Specifically for selecting following send opportunity frame：Number of time slots is seized in send opportunity frame for k UE collision solves to 2 UE to touch Hit the summation of the number of time slots needed for solving, k >=2.

With reference to the possible implementation of any of the above-described of the third aspect or the third aspect, the 6th kind of possible realization side In formula, send opportunity frame of the select unit specifically for the following form of selection：In send opportunity frame, monitor-seize subframe and passing Before defeated subframe, and monitor-seize subframe and transmission subframe between also have honeycomb sub-frame interval.

With reference to the third aspect, first to the 5th kind of any one of possible implementation of the third aspect, can at the 7th kind In the implementation of energy, send opportunity frame of the select unit specifically for the following form of selection：In send opportunity frame, monitor-rob Subframe is accounted for before subframe is transmitted, and is monitored-is seized between subframe and transmission subframe and there is no a honeycomb sub-frame interval, and all of UE Seizing sequence will seize time slot transmission once by monitoring-seizing first of subframe.

A kind of fourth aspect, there is provided device of utilization resource contention, including receiving unit, determining unit and scheduling are single Unit：Receiving unit, wherein the send opportunity frame for receiving UE transmissions, send opportunity frame include monitoring-seizing subframe and transmission Subframe, monitors-seizes subframe and seize time slot including multiple；Determining unit, for according to send opportunity frame, it is determined that finding resource Seizure condition or idle condition；Scheduling unit, the discovery resource for dispatching the free time.

With reference to fourth aspect, in the first possible implementation, receiving unit receives UE and seizes money by selection Source, send opportunity frame monitoring-seize subframe seize sent on time slot seize sequence；Determining unit is due to preempting resources There is one-to-one relationship with resource is found, according to the preempting resources of selection, determine that the preempting resources of selection are corresponding and find money Source is seizure condition, and others find that resource is idle condition.

With reference to the first possible implementation of fourth aspect or fourth aspect, in second possible implementation In, in the send opportunity frame that receiving unit is received, subframe is monitored-seized before subframe is transmitted, and monitor-seize subframe and transmission There is honeycomb sub-frame interval between subframe.

With reference to the first possible implementation of fourth aspect or fourth aspect, in the third possible implementation In, in the send opportunity frame that receiving unit is received, subframe is monitored-seized before subframe is transmitted, and monitor-seize subframe and transmission There is no honeycomb sub-frame interval between subframe, when seizing sequence and being seized by monitoring-seizing first of subframe of all of UE Gap sends once.

5th aspect, there is provided a kind of user equipment, including processor, memory and transmitter：Memory, with processor Connection, the instruction needed for for storing computing device operations described below；

Processor, for selecting send opportunity frame, wherein send opportunity frame to include monitoring-seizing subframe and transmission subframe, Monitor-seize subframe and seize time slot including multiple；The multiple for monitoring-seizing subframe by analysis is seized different user on time slot and is set Standby state, determines that selected discovery resource is exclusive discovery resource；Transmitter, for by transmitting subframe exclusive It was found that sending neighbouring identity indication code in resource.

In the first possible implementation, also including receiver：The preempting resources that transmitter passes through selection, in multiple Sequence is seized in the transmission on time slot of seizing for seizing at least one of time slot transmission state, and receiver is in multiple seizes time slot Seizing on time slot at least one listening state listen to other UE and do not select identical preempting resources, processor, specifically For there is one-to-one relationship with discovery resource according to preempting resources, then the preempting resources that will be selected are corresponding to find that resource is true It is set to exclusive discovery resource.

With reference to the first implementation of the 5th aspect, in second possible implementation, also including receiver：Hair Preempting resources of the device by selection are sent, the transmission on time slot of seizing for seizing at least one of time slot transmission state in multiple is seized Sequence, and receiver seizes seizing on time slot at least one of time slot listening state and listens to other UE and have selected in multiple Identical preempting resources, then transmitter no longer follow-up transmission state seize on time slot send seize sequence.

With reference to the first or second possible implementation of the 5th aspect, in the third possible implementation, The preempting resources that transmitter passes through selection, seize at least one of time slot and send state and seize on time slot to use in multiple The power that base station can listen to sends and seizes sequence.

With reference to the 5th aspect or the possible implementation of any of the above-described of the 5th aspect, the 4th kind of possible realization side In formula, processor selects following send opportunity frame：At most permit after determining once to select according to parameter lambda and threshold percentage A Perhaps the UE number k of identical discovery resource are selected, the selection according to k and UE is monitored or time slot is seized in the probability joint determination of transmission Number, wherein threshold percentage A is one and finds there is the probability of multiple UE in resource, and parameter lambda is the UE that competition finds resource The ratio of number and discovery resource number.

With reference to the 4th kind of possible implementation of the 5th aspect, in the 5th kind of possible implementation, utensil is processed Body is used to select following send opportunity frame：Seize number of time slots for needed for k UE collision solves to 2 UE collisions to solve when The summation of gap number, k >=2.

With reference to the 5th aspect or the possible implementation of any of the above-described of the 5th aspect, the 6th kind of possible realization side In formula, send opportunity frame of the processor specifically for the following form of selection：In send opportunity frame, subframe is monitored-seized in transmission Before subframe, and monitor-seize subframe and transmission subframe between also have honeycomb sub-frame interval.

With reference to the 5th aspect, first to the 5th kind of any one of possible implementation of the 5th aspect, can at the 7th kind In the implementation of energy, processor selects the send opportunity frame of following form：In send opportunity frame, monitor-seize subframe and passing Before defeated subframe, and monitor-seize between subframe and transmission subframe and there is no a honeycomb sub-frame interval, all of UE's seizes sequence and to lead to Cross to monitor-seize first of subframe and seize time slot and send once.

6th aspect, there is provided a kind of device of utilization resource contention, including receiver, processor and memory：Storage Device, the instruction needed for for storing computing device following methods；Receiver, the send opportunity frame for receiving UE transmissions, its Middle send opportunity frame includes monitoring-seizing subframe and transmission subframe, monitors-seizes subframe and seize time slot including multiple；Processor, For according to send opportunity frame, it is determined that finding the seizure condition or idle condition of resource；Dispatch idle discovery resource.

In the first possible implementation, receiver receives preempting resources of the UE by selection, in send opportunity frame Monitoring-seize subframe seize sent on time slot seize sequence；Processor has one due to preempting resources with discovery resource One corresponding relation, according to the preempting resources of selection, determines that the preempting resources of selection are corresponding and finds that resource is seizure condition, other Discovery resource be idle condition.

With reference to the 6th aspect or the first possible implementation of the 6th aspect, in second possible implementation In, in the send opportunity frame that receiver is received, subframe is monitored-seized before subframe is transmitted, and monitor-seize subframe and transmission There is honeycomb sub-frame interval between frame.

With reference to the 6th aspect or the first possible implementation of the 6th aspect, in the third possible implementation In, in the send opportunity frame that receiver is received, subframe is monitored-seized before subframe is transmitted, and monitor-seize subframe and transmission There is no honeycomb sub-frame interval between frame, all of UE's seizes sequence and to seize time slot by monitoring-seizing first of subframe Send once.

Above-mentioned technical proposal, can select send opportunity frame, using the monitoring-seize in subframe of send opportunity frame by UE The state for seizing time slot analysis different user, it is determined that find resource exclusivity after, by transmission subframe send D2Dcode, from And solve the problems, such as that collision frequency is excessive during resource contention, and then UE reduces emitting times, saves the power consumption of user equipment. Additionally, finding the send opportunity frame of the UE of resource by the competition that receiver is received using the device of resource contention, found The occupancy and idle condition of resource, the discovery resource such that it is able to dispatch idle condition make for other UE for having neither part nor lot in resource contention With improve the utilization rate of resource.

Brief description of the drawings

Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be in embodiment or description of the prior art The required accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only some realities of the invention Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings Obtain other accompanying drawings.

Fig. 1 is the schematic flow diagram of the method for the resource contention of the embodiment of the present invention.

Fig. 2 is the schematic flow diagram of the method for the resource contention of another embodiment of the present invention.

Fig. 3 is the schematic diagram of the corresponding relation of preempting resources and discovery resource in the embodiment of the present invention.

Fig. 4 is the signal schematic diagram of the method for the resource contention of the embodiment of the present invention.

Fig. 5 is the schematic flow diagram of the method for the resource contention of another embodiment of the present invention.

Fig. 6 is the signal schematic diagram of the method for the resource contention of another embodiment of the present invention.

Fig. 7 A and Fig. 7 B are the structural representations of the send opportunity frame of the embodiment of the present invention.

Fig. 8 is the schematic block diagram of the user equipment of the resource contention of the embodiment of the present invention.

Fig. 9 is the schematic block diagram of the user equipment of the resource contention of another embodiment of the present invention.

Figure 10 is the schematic block diagram of the device of the utilization resource contention of the embodiment of the present invention.

Figure 11 is the schematic block diagram of the user equipment of the resource contention of another embodiment of the present invention.

Figure 12 is the schematic block diagram of the device of the utilization resource contention of another embodiment of the present invention.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of protection of the invention.

Technical scheme, can apply to various communication systems, for example：Global system for mobile communications（GSM, Global System of Mobile communication）, CDMA（CDMA, Code Division Multiple Access）System, WCDMA（WCDMA, Wideband Code Division Multiple Access Wireless）, GPRS（GPRS, General Packet Radio Service）, Long Term Evolution（LTE, Long Term Evolution）Deng.

Terminal device, alternatively referred to as user equipment（UE, User Equipment）, mobile terminal（Mobile Terminal）, mobile subscriber equipment etc., can be through wireless access network（For example, RAN, Radio Access Network）With one Individual or multiple core nets are communicated, and user equipment can be mobile terminal, such as mobile phone（Or be " honeycomb " phone）With Computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted shifting Dynamic device, they exchange voice and/or data with wireless access network.

Base station, can be the base station in GSM or CDMA（BTS, Base Transceiver Station）, or Base station in WCDMA（NodeB）, can also be the evolved base station in LTE（ENB or e-NodeB, evolutional Node B）, the present invention is not limited, but for convenience of description, following embodiments are illustrated by taking eNB as an example.

In addition, the terms " system " and " network " are often used interchangeably herein.The terms " and/ Or ", only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of relations, for example, A and/or B, can be with table Show：Individualism A, while there is A and B, individualism B these three situations.In addition, character "/" herein, before and after typicallying represent Affiliated partner is a kind of relation of "or".

A kind of method of resource contention is the embodiment of the invention provides, technical scheme is understood for convenience, connect down To be illustrated to some terms.

D2Dcode：Neighbouring identity indication code, usually more than 32, by discovery signal（discovery Signal）Take Band.

D2D has found the repetition period（discovery repetition period）：Referred to as find the repetition period.At one It was found that finding that the UE of signal at least have sent a D2Dcode, it is necessary to send in the repetition period.

D2D send opportunity frames（TX Occasion Frame）：Abbreviation send opportunity frame.The repetition period is found in a D2D In, including at least one radio frames with self-defined frame structure of the invention, for discovery feature, the radio frames are send opportunity Frame.UE carries out finding the transmission of signal, and the monitoring for seizing sequence on the send opportunity frame（Or receive）.Each sends Chance frame monitored including one or more-seize subframe（Monitoring-Preemption sub-frame）With one D2Dcode transmits subframe；Monitor-seize subframe and seize time slot including multiple D2D discovery feature resources.

D2Dcode has found resource（Discovery Resource）：Referred to as find resource.UE is sent using the resource and found Signal, that is, transmit D2Dcode.It is generally found asset size larger, such as is 1-3 RB in LTE（English is Resource Block, Chinese is Resource Block）.It was found that resource can have multiple, and all of discovery resource group by self-defined Into discovery resource collection.

D2Dcode preempting resources（Preemption Resource）：Abbreviation preempting resources.Preempting resources and discovery resource Correspond, preempting resources are UE to obtain finding the resource that resource is at war with.Usual preempting resources size is smaller, for example In LTE, 12 RE（English is Resource Element, and Chinese is resource element）Or 24 RE etc..Preempting resources have multiple, All of preempting resources constitute preempting resources set.UE sends signal specific using preempting resources, and the signal specific is namely robbed Account for sequence.

D2D discovery feature resources seize time slot（Preemption Slot for Discovery Function）：Referred to as Seize time slot.In D2D send opportunity frames, a part seizes time slot for allowing UE to seize sequence；A part seizes time slot for allowing UE monitor other UE transmission seize sequence.UE seizes sequence by the transmission on time slot of seizing that preempting resources send state at Row.Due to preempting resources with find resource and correspond, UE have selected it is specific certain find resource represent oneself have selected with The corresponding preempting resources of the preempting resources.

D2Dcode transmits subframe（Transmission Sub-frame）：Referred to as transmit subframe.Determine that oneself finds in UE After the exclusivity of resource, using D2D send opportunity frames transmission subframe it is determined that discovery resource on send find signal, with It is same meaning subframe to be transmitted in text and sends D2Dcode.

Fig. 1 is the schematic flow diagram of the method 10 of the resource contention of the embodiment of the present invention, including herein below.The method can Performed with by UE.

S11, selects send opportunity frame, wherein send opportunity frame to include monitoring-seizing subframe and transmission subframe, monitor-rob Account for subframe and seize time slot including multiple.

S12, the multiple for monitoring-seizing subframe by analysis seizes the state of different user devices on time slot, it is determined that selection Discovery resource be exclusive discovery resource.

S13, neighbouring identity indication code is sent by transmitting subframe in exclusive discovery resource.

The embodiment of the present invention is seized by selecting send opportunity frame using the monitoring-seize in subframe of send opportunity frame The state of time slot analysis different user, it is determined that after finding the exclusivity of resource, D2Dcode is sent by transmission subframe, so as to solve Collision frequency excessive problem during resource contention, and then UE reduces emitting times, saves the power consumption of user equipment.

Fig. 2 is the schematic flow diagram of the method 200 of the resource contention of another embodiment of the present invention, including herein below.

S210, eNB broadcast the related information of this cell discovery feature.

ENB sends the related information of this cell discovery feature by CBCH BCCH：It was found that repetition period, transmission Chance frame, discovery resource collection, preempting resources set, the position for seizing time slot and number, transmission subframe, the selection of send opportunity frame Method and method for pre-emptively etc..

Alternatively, as different embodiments, eNB related information above-mentioned to known to UE, it is convenient to omit the step.It is above-mentioned Related information can be stored in eNB and UE both sides as standard information in advance.

S215, UE are having found one discovery chance frame of selection in the repetition period.

One finds that the repetition period can include one or more discovery chance frames.Therefore, UE can have found weight at random A send opportunity frame is selected in the multiple cycle.Usual send opportunity frame selecting method ensures that each send opportunity frame is selected general Rate is equal, it is also possible to voluntarily arranged.Such as UE selects System Frame Number（English is System Frame Number, is abbreviated as SFN）It is 34（That is SFN=34）Send opportunity frame, find resource and to send the D2Dcode of oneself for competing.

S220, UE selection find resource.

UE randomly chooses a discovery resource when each send opportunity frame that oneself is selected is reached.UE is selected at random Select and find that the algorithm of resource can allow UE to select each to find that the probability of resource is equal.

Each UE independently selects to find resource, it is possible that one finds resource by 2 and the feelings of the UE selections of the above Condition, such case is referred to as resource collision.The collision probability of resource increases with the number of the UE for selecting current send opportunity frame And increase, i.e., with the increase of parameter lambda, resource collision probability P can also increase, and wherein λ=competition finds the UE numbers/hair of resource Existing resource number.Each UE independently selects to find resource, there may be the feelings that a resource is not selected by any one UE Condition, it is this not reduced with the increase of parameter lambda by the probability that any UE is selected.

Occur after resource collision, if not carrying out collision solution, this multiple UE will have found resource point using identical The D2Dcode of oneself is not sent.In the case where UE distances are closer mutually, can each other interfere, cause the UE of reception not The information in this resource can be correctly decoded.Next, multiple UE need reselect discovery resource send, system effectiveness compared with Low, repeatedly sending causes UE power consumptions high.

Assuming that this cell of network includes three UE, UE1, UE2 and UE3, wherein three UE have selected identical hair Chance frame, the send opportunity frame of such as SFN=34, UE1 is sent to have selected the 1st discovery resource, UE2 equally have selected the 1st discovery money Source, UE3 have selected the 8th discovery resource.UE1 and UE2 just occur resource collision.This phenomenon is that we are not intended to see , so the embodiment of the present invention proposes that a method for resource contention is excessive to solve the problems, such as resource collision.In the method, only There is UE to determine that the discovery resource of oneself selection is exclusive, the transmission of D2Dcode could be carried out in the discovery resource.Thus, The number of times of resource collision is reduced, and then saves the power consumption of UE.

It oneself is listening state or transmission state that S225, UE determine that each is seized in time slot.

The random seed carried in the broadcast message that UE is sent according to eNB, calculates each and seizes time slot by random algorithm In oneself be transmission state or listening state.Then, the time slot transmission of seizing according to the result for calculating in the state of transmission is seized Sequence seizes sequence in the monitoring of listening state.It is a very short sequence to seize sequence, for example, seize sequence and use 12 Individual RE, and take a symbol of time domain, thus LTE a time slot, 7 can be accommodated and seize sequence.Seize the frequency of time slot Domain resource can be that eNB is broadcast to known to UE, or eNB and UE both sides.The call number of preempting resources is provided with discovery The call number in source is corresponding.This shows that UE once have selected a discovery resource, means that corresponding preempting resources also simultaneously It is chosen.UE is sent using the preempting resources of selection and seizes sequence.

Fig. 3 is the schematic diagram of the corresponding relation of preempting resources and discovery resource in the embodiment of the present invention.In this embodiment, Preempting resources and discovery resource are corresponded.This shows that UE once have selected a discovery resource, means that and corresponding seizes money Source is also chosen simultaneously.UE sends in the preempting resources of selection and seizes sequence.

Assuming that every part of discovery resource for finding resource collection is 1 subframe *, 1 RB, every part of preempting resources set is seized Resource is 1 symbol * 1RB, with reference next to Fig. 3 explanation preempting resources and the corresponding relation for finding resource

In Fig. 3, each time slot has 7 symbols（0-6）, frequency domain have 2 RB（RB1 and RB2）In the case of, preempting resources rope Quotation marks are the 1st preempting resources 31 since the symbol 0 of RB1.Next, first according to time-domain serial number, entering according still further to frequency domain Line number, therefore the symbol 0 of RB2 is the 8th preempting resources 32, the symbol 6 of RB2 is the 14th preempting resources 33.Preempting resources in Fig. 3 Call number with find resource call number be it is one-to-one, such as the 1st preempting resources 31 with the 1st discovery resource it is corresponding. Preempting resources 31-33 is distinguished with different filling forms in Fig. 3, clear to show.

S230, it is determined that finding the exclusivity of resource.

When the preempting resources by selection, after sending the seizing on time slot and send and seize sequence of state at one, monitoring The seizing on time slot of state listen to without other UE have selected identical preempting resources send seize sequence when, then will be selected Discovery resource be defined as exclusive discovery resource, neighbouring identity is sent in exclusive discovery resource by transmitting subframe indicates Code.

S235, it is determined that finding that resource is occupied.

When the preempting resources by selection, after sending the seizing on time slot and send and seize sequence of state at one, monitoring The seizing on time slot of state listens to other UE and have selected identical preempting resources and send when seizing sequence, then no longer follow-up Sequence is seized in the transmission on time slot of seizing of transmission state.

Fig. 4 is the signal schematic diagram of the method for the resource contention of the embodiment of the present invention.Illustrate that collision finds and solves in Fig. 4 The certainly principle of method.When multiple UE selections same discovery resource, it is meant that they will subsequently be seized using identical Resource sends and seizes sequence, when multiple UE determine that it is all transmission to seize the state of oneself in time slot for one（Tx）During state, each other Between can not monitor mutually, it is impossible to discovery have other UE also take this find resource.In with reference to Fig. 4 the 1st seizes time slot 41, UE1 and UE2 is all transmission state.When multiple UE determine that it is all monitoring to seize the state of oneself in time slot for one（Rx）State When, because there is no UE sending signals, can not equally find that other UE take this and find resource.In with reference to Fig. 4 the 2nd robs Time slot 42 is accounted for, UE1 and UE2 are all listening state.When multiple UE determine that a state seized in time slot is different, that is, what is had is hair Send, have for monitor when, the UE of monitoring can have found that other UE send in the preempting resources that oneself is selected and seize sequence, at this moment This UE for monitoring is known that in network there is other UE and oneself resource collision.The 3rd time slot 43 in reference to Fig. 4, UE1 is hair State is sent, UE2 is listening state.Therefore, the current UE2 for listening state thinks that the discovery resource of oneself selection seizes failure, It will send and seize sequence follow-up time slot no longer in corresponding preempting resources, also will not transmission subframe using selection hair Existing resource sends D2Dcode, with reference to the 4th time slot 44.In the 4th time slot 44 and later time slot, the state of UE2 can be Rx shapes State, it is also possible to do not monitored, can not be simply Tx states.The current UE1 for transmission state due to UE2 in the subsequent slot Do not send and seize sequence, therefore, until seize time slot terminating, UE1 does not listen to the discovery that other UE are selected at oneself Sent in resource and seize sequence, it is believed that the discovery resource of oneself selection is seized successfully.After seizing successfully, UE1 can be in transmission Subframe sends D2Dcode using the transmission resource for oneself selecting.

For convenience of explanation, in Fig. 4 only by taking two UE as an example, but the present invention is not limited this, actually same cell It is middle to there is multiple UE competition discovery resources.Seize number of time slots and find that the UE numbers of resource are closely related with competition.As preferred Embodiment, during in order to ensure finally to send D2Dcode, find the collision occurred in resource less than remaining collision threshold percentage A, in plot planning, it is necessary to the well-designed number for seizing time slot.Remnants collisions threshold percentage A is also referred to as thresholding percentage Compare A.In a send opportunity frame, by monitoring and sending, some UE have determined exclusive discovery resource, and some UE are It is determined that next there is no the state of transmission, some UE are inadequate due to monitoring duration, in addition it is also necessary to by monitoring and sending ability several times Finally determine ensuing state.However, as network design, it will usually have time requirement to above-mentioned determination process, so exist Under unified time requirement, some UE may not also determine ensuing state.Therefore, for the purpose of the network optimization, refer to Determine a parameter, i.e. threshold percentage A, be used to refer in said circumstances, a probability for finding to have multiple UE in resource.Under Face illustratively method for designing：

Step 1）According to the network planning, the value of λ is selected, that is, define how many UE and find to be competed in resource at how many.

λ=competition finds the UE numbers/discovery resource number of resource.Formula 1

Step 2）According to λ and threshold percentage A, the UE at most allowing to select identical discovery resource after once selecting is calculated Number k.Threshold percentage A is a probability for finding to have multiple UE in resource.From 2 to k, k values are to meet formula 2 to UE numbers Value：

Formula 2

Step 3）Calculate solution multiple UE collision needs seizes number of time slots.

Define k UE to find to be collided in resource at one, what at least one UE discovery collisions needed seizes number of time slots It is m_k, then the number of time slots of seizing in a send opportunity frame meet formula 3.

Formula 3

Assuming that UE calculates transmission and the listening state of oneself according to the probability of transmitting-receiving each 50%, and threshold percentage A is When 1%, for example, then when resource collision is found for one, at least one UE has found that have a collision seizes time slot to 2-5 UE The relation of number is as shown in table 1.

Table 1

If step 2）The k of calculating is 4, then the number of time slots of seizing that all UE are used to collide solution is：6+4+3=13.

Can be monitored by one or more-seized in the embodiment of the present invention seize time slot needed for subframe includes.It is optional , the embodiment of the present invention can limit one and monitor-seize subframe including seizing time slot needed for whole.In different embodiments In, it is also possible to included whole seizing time slot according to the monitoring of the subframe lengths of different system specializations-seize subframe by multiple. In the embodiment of the latter, it is determined that monitoring-seize number of sub-frames refer to following step.Identical is in two kinds of implementations, In a structure for send opportunity frame, subframe is monitored-seized always before subframe is transmitted, and monitor-seize subframe and transmission Between subframe or monitoring-seize subframe before or transmission subframe after can also include honeycomb subframe.Honeycomb subframe is The subframe except in addition to monitoring-seizing subframe and transmission subframe that send opportunity frame includes, can be used for sending regular traffic.

Step 4）It is determined that monitor-seize number of sub-frames.

Monitor-seize number of sub-frames=round up { seizing the number of time slots included in number of time slots/subframe }

Formula 4

A subframe is 2 time slots in LTE, then the number of sub-frames for needing is 7.If UMTS, a subframe is 3 Time slot, then it is 5 to need number of sub-frames.

Embodiment of the present invention UE using selection preempting resources, one in the monitoring-seize subframe of send opportunity frame Seize to be sent on time slot and seize sequence, monitor the preempting resources that other UE are used；By analysis, the preempting resources of selection are determined Exclusivity, according to preempting resources and the one-to-one relationship for finding resource, it is determined that exclusive discovery resource；By send opportunity frame Transmission subframe send D2Dcode in exclusive discovery resource；Resource collision number of times is thereby reduced, and then UE reduces transmitting Number of times, saves the power consumption of UE.

In the case where UE independently selects to find resource, there are some to find that resource is selected without any UE, therefore It is idle that transmission subframe always has some frequency domain resources.When the power that UE seizes sequence by monitoring-seizing subframe transmission can During so that the eNB of this cell being listened to, eNB can know the discovery resource of idle condition, and then dispatch the discovery of these free time Resource is used to other UE for having neither part nor lot in resource contention, to improve the utilization rate of resource.Referring to the embodiment of Fig. 5.

Fig. 5 is the schematic flow diagram of the method 50 of the utilization resource contention of another embodiment of the present invention, including herein below. The method can be performed by eNB.

S51, receives the send opportunity frame that UE sends, wherein the send opportunity frame includes monitoring-seizing subframe and transmission Subframe, the monitoring-seize subframe seizes time slot including multiple.

S52, according to the send opportunity frame, it is determined that finding the seizure condition or idle condition of resource.

S53, dispatches idle discovery resource.

The embodiment of the present invention by monitor competition find resource UE send opportunity frame, obtain find resource occupancy and Idle condition, the discovery resource such that it is able to dispatch idle condition is used for other UE for having neither part nor lot in resource contention, improves money The utilization rate in source.

Fig. 6 is the signal schematic diagram figure of the method for the resource contention of another embodiment of the present invention.As shown in fig. 6, in the reality Apply in example, subframe 62 and a transmission subframe 63 are monitored-seized to send opportunity frame 61 including multiple, also including multiple honeycomb subframes 64.Monitor-seize subframe 62 and seize time slot including multiple and seize sequence for monitoring or send.The preempting resources of UE1 to UE8 point 601,602,603,604,601,606,607 and the 608 of other corresponding diagram 6, for convenience of description, different UE are with different pattern areas Point.Wherein seize time slot for one, the preempting resources conflict of UE1 and UE5, simultaneous selection preempting resources 601, referring in figure Shown in 611.Time slot is seized ensuing, UE5 keeps out of the way, do not retransmit and seize sequence.UE1 continue it is follow-up seize time slot after Supervention is sent and sequence is seized in monitoring, and until confirming to take same preempting resources without other UE, preempting resources 601 are monopolized by UE1. Because preempting resources and discovery resource have corresponding relation, when exclusive preempting resources are determined, that is, exclusive discovery is determined Resource.In resource collection 620 is found, it can be seen that find the different conditions of resource, the exclusive discovery resource of wherein UE with Represented with preempting resources identical pattern, the discovery resource of idle condition is represented with 621.

Require that UE transmissions in the corresponding preempting resources of selected discovery resource are seized sequence and are in the embodiment of the present invention Can allow the UE of full cell can to listen to, therefore eNB also can be listened to.Simplest situation is exactly to require that UE is used Maximum transmission power seizes sequence to send, and at this moment eNB can be listened to and be seized sequence.ENB can be to UE under normal circumstances Transmission power have a limitation, so both can guarantee that the accuracy of monitoring or saved the electric energy of UE, this limitation and cell Coverage is related, can be formulated by plot planning.

In transmission subframe, eNB can dispatch unappropriated idling-resource and be used to phone user.We will only use honeycomb Communication function is referred to as phone user without the UE using discovery feature.Because scheduling phone user needs certain process time, ENB needs some time before D2D transmission subframes, such as in 1 millisecond, obtain discovery the Resources list of idle condition, therefore will Or ask D2D to transmit subframe dispatch deal time enough with monitoring-seizing sub-frame interval, or monitoring-seize subframe Seize all UE on time slot and all sent in the preempting resources of oneself selection for first and seize sequence, at this moment D2Dcode transmission Frame can be immediately in seizing after subframe.Therefore, D2Dcode send opportunity frame 70 has two kinds of forms.

Herein it should be noted that：Phone user still can be according to the scheduling of eNB in each subframe of send opportunity frame Situation normally uses cellular functionality.Because it was found that resource has been reserved, eNB generally will not to dispatch these reserved for the phone user It was found that resource.But by monitor UE send seize sequence, after eNB knows the discovery resource of idle condition, transmission subframe The discovery resource of these idle conditions can be dispatched to above-mentioned phone user, for cellular based communication function.

Fig. 7 A and Fig. 7 B are the structural representations of the send opportunity frame 70 of the embodiment of the present invention.In embodiments of the present invention, Monitor-seize as a example by subframe seizes time slot including two by one and illustrate, therefore it is multiple to monitor-seize subframe 71, but It is optional by one monitor-seize subframe include it is all of seize time slot, for succinct, repeat no more.

Subframe 71 is monitored-seized to the first form as shown in Figure 7 A, before subframe 72 is transmitted, and monitor-seize subframe 71 There is honeycomb subframe 73 to be spaced and transmission subframe 72 between.Using the interlude of honeycomb subframe 73, eNB can dispatch honeycomb use Family.

Second form as shown in Figure 7 B, monitor-seize subframe 71 transmit subframe 72 before, between there is no honeycomb subframe 73 Interval, but require that all of UE passes through to monitor-seize first of subframe 71 and seize time slot 74, i.e., occur first when seizing Gap, sends in the corresponding preempting resources of discovery resource of oneself selection and once seizes sequence.By all UE, that is, instigate With the UE of discovery feature, seize time slot at first and have sent and once seize sequence, eNB can as early as possible know the hair of idle condition Existing resource, and then obtain the process time of scheduling phone user.By the principle of the embodiment of the present invention, in ensuing seizing Gap, transmission and the listening state of UE different on time slot are seized by multiple, and UE can determine oneself exclusive discovery resource.

Fig. 8 is the user equipment of the resource contention of the embodiment of the present invention（UE）80 schematic block diagram.User equipment 80 includes： Select unit 81, determining unit 82 and transmitting element 83.User equipment 80 can be mobile phone, mobile computer etc., can Realize the method 10 of the resource contention of the embodiment of the present invention.

Select unit 81 selects send opportunity frame, wherein the send opportunity frame includes monitoring-seizing subframe and transmission Frame, the monitoring-seize subframe seizes time slot including multiple.

Determining unit 82 seizes the shape of different user devices on time slot by analyzing the multiple of the monitoring-seize subframe State, determines that selected discovery resource is exclusive discovery resource.

Transmitting element 83 sends neighbouring identity indication code by the transmission subframe in the exclusive discovery resource.

Device 80 seizes time slot point by selecting send opportunity frame using the monitoring-seize in subframe of send opportunity frame The state of different user is analysed, it is determined that after finding the exclusivity of resource, D2Dcode is sent by transmission subframe, so as to solve resource Collision frequency excessive problem during competition, and then UE reduces emitting times, saves the power consumption of user equipment.

Fig. 9 is the schematic block diagram of the user equipment 90 of the resource contention of another embodiment of the present invention.User equipment 90 includes： Select unit 91, determining unit 92, the monitoring unit 94 of transmitting element 93 and control unit 95.The select unit of user equipment 90 91st, the select unit 81 of determining unit 92 and transmitting element 93 and user equipment 80, determining unit 82 and transmitting element 83 are identical Or it is similar, the difference is that user equipment 90 also includes monitoring unit 94 and control unit 95.

Select unit 91 selects send opportunity frame, wherein the send opportunity frame includes monitoring-seizing subframe and transmission Frame, the monitoring-seize subframe seizes time slot including multiple.

Determining unit 92 seizes the shape of different user devices on time slot by analyzing the multiple of the monitoring-seize subframe State, determines that selected discovery resource is exclusive discovery resource.

Transmitting element 93 sends neighbouring identity indication code by the transmission subframe in the exclusive discovery resource.

Optionally, the preempting resources for passing through selection as different embodiments, transmitting element 93, in the multiple seizing Sequence is seized in the transmission on time slot of seizing that at least one of gap sends state, and monitoring unit 94 seizes time slot the multiple At least one of listening state seize on time slot listen to other UE either with or without selection identical preempting resources, determining unit 92 seize seizing on time slot at least one of time slot listening state and listen to other UE in monitoring unit 94 the multiple During without selection identical preempting resources, according to preempting resources and the one-to-one relationship for finding resource presence, then by the choosing The corresponding discovery resource of preempting resources selected is defined as exclusive discovery resource.

Optionally, as different embodiments, control unit 95 seizes time slot when the monitoring unit 94 the multiple At least one of listening state seize on time slot when listening to other UE and not selecting identical preempting resources, control is described Transmitting element 93 no longer seizes sequence in the transmission on time slot of seizing of follow-up transmission state.

Optionally, the preempting resources for passing through selection as different embodiments, transmitting element 93, in the multiple seizing At least one of gap send state seize on time slot with the power that can be listened to using base station send described in seize sequence.

Optionally, as different embodiments, select unit 91 selects following send opportunity frame：The send opportunity frame Described in seize the number of time slot, it is that the probability joint monitored or send according to the selection of k and UE determines that wherein k is to be According to most UE numbers for allowing to select identical discovery resource that parameter lambda and threshold percentage A determine, the threshold percentage A It is the probability for having multiple UE in a discovery resource, the parameter lambda is that competition finds the UE numbers of resource and finds resource number Ratio.

Optionally, as different embodiments, the specifically chosen following send opportunity frame of select unit 91：The transmitter The summation of the number of time slots that can be seized described in frame needed for number of time slots solves to collide solution to 2 UE for k UE collision, k >= 2。

Optionally, as different embodiments, send opportunity frame of the select unit 91 specifically for the following form of selection：Institute In stating send opportunity frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize subframe and the biography There is honeycomb sub-frame interval between defeated subframe.

Optionally, as different embodiments, send opportunity frame of the select unit specifically for the following form of selection：It is described In send opportunity frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize subframe and the transmission There is no honeycomb sub-frame interval between subframe, all of UE's is seized sequence and to be robbed by first of the monitoring-seize subframe Time slot is accounted for send once.

User equipment 90 can utilize the preempting resources of selection, one in the monitoring-seize subframe of send opportunity frame Seize to be sent on time slot and seize sequence, monitor the preempting resources that other UE are used；By analysis, the preempting resources of selection are determined Exclusivity, according to preempting resources and the one-to-one relationship for finding resource, it is determined that exclusive discovery resource；By send opportunity frame Transmission subframe send D2Dcode in exclusive discovery resource；Resource collision number of times is thereby reduced, and then UE reduces transmitting Number of times, saves the power consumption of UE, it is possible to achieve the method 10 and 20 of the embodiment of the present invention.

Figure 10 is the schematic block diagram of the device 100 of the utilization resource contention of the embodiment of the present invention.Device 100 includes receiving single Unit 101, determining unit 102 and scheduling unit 103.Device 100 can be network side equipment, such as base station, with user equipment 80 Or the grade of user equipment 90 constitutes wireless network.

Receiving unit 101 receive UE send send opportunity frame, wherein the send opportunity frame include monitor-seize subframe With transmission subframe, the monitoring-seize subframe seizes time slot including multiple.

Determining unit 102 is according to the send opportunity frame, it is determined that finding the seizure condition or idle condition of resource.

Scheduling unit 103 dispatches the discovery resource of free time.

Device 100 obtains the occupancy and free time for finding resource by monitoring the send opportunity frame that competition finds the UE of resource State, the discovery resource such that it is able to dispatch idle condition is used for other UE for having neither part nor lot in resource contention, improves resource Utilization rate.

Additionally, optional, used as different embodiments, receiving unit 101 receives preempting resources of the UE by selection, in institute State the monitoring of send opportunity frame-seize subframe seize sent on time slot seize sequence；Determining unit 102 is due to preempting resources There is one-to-one relationship with resource is found, according to the preempting resources of the selection, determine the preempting resources correspondence of the selection Discovery resource be seizure condition, others find resources be idle condition.

Optionally, as different embodiments, in the send opportunity frame that receiving unit 101 is received, the monitoring-rob Subframe is accounted for before the transmission subframe, and the monitoring-seize also has honeycomb sub-frame interval between subframe and the transmission subframe.

Optionally, as different embodiments, in the send opportunity frame that receiving unit 101 is received, the monitoring-rob Subframe is accounted for before the transmission subframe, and the monitoring-seize between subframe and the transmission subframe does not have honeycomb sub-frame interval, All of UE seize sequence will by monitor-seize first of subframe seize time slot send once.

Device 100 realizes method 50, the send opportunity frame sent by the UE for monitoring competitive resource, obtains and finds resource Occupancy and idle condition, the discovery resource such that it is able to dispatch idle condition uses for other UE for having neither part nor lot in resource contention, Improve the utilization rate of resource.Device 100 combines with device 80 or 90, in same wireless network, can not only improve The utilization rate of resource, can also save the power consumption of UE.

Figure 11 is the schematic block diagram of the user equipment 110 of the resource contention of another embodiment of the present invention.User equipment 110 is wrapped Include processor 111, memory 112 and transmitter 113.User equipment 110 can be mobile phone, mobile computer etc., can Realize the method 10 of the resource contention of the embodiment of the present invention.

Processor 111 can be general processor, digital signal processor（DSP）, application specific integrated circuit（ASIC）, it is ready-made Programmable gate array（FPGA）Or other PLDs, discrete gate or transistor logic, discrete hardware group Part, it is possible to achieve or perform disclosed each method, step and logic diagram in the embodiment of the present invention., and by bus with Other device two-way communications.General processor can be microprocessor or the processor can also be any conventional processor Deng.The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processor and perform completion, or Hardware and software module combination in person's decoding processor performs completion.Software module may be located at random access memory, flash memory, The ripe storage in this area such as read-only storage, programmable read only memory or electrically erasable programmable memory, register In medium.The storage medium is located at memory 112, and processor 111 reads the information in memory 112, is completed with reference to its hardware The step of above method.Memory 112 and processor 111 can also be integrated into using the physical module of the embodiment of the present invention, The program for realizing the embodiment of the present invention is stored and run on the physical module.

Memory 112 is connected with the processor 111, the finger needed for for storing the computing device operations described below Order.

Processor 111 selects send opportunity frame, wherein the send opportunity frame includes monitoring-seizing subframe and transmission Frame, the monitoring-seize subframe seizes time slot including multiple；Time slot is seized by the multiple for analyzing the monitoring-seize subframe The state of upper different user devices, determines that selected discovery resource is exclusive discovery resource.

Transmitter 113 sends neighbouring identity indication code by the transmission subframe in the exclusive discovery resource.

Optionally, device 110 also includes receiver 114.

Optionally, the preempting resources for passing through selection as different embodiments, transmitter 113, in the multiple seizing Sequence is seized in the transmission on time slot of seizing that at least one of gap sends state, and the receiver 114 is seized the multiple The seizing on time slot of at least one of time slot listening state listens to other UE and does not select identical preempting resources, the place There is one-to-one relationship in reason device 111, then with discovery resource according to preempting resources by the corresponding hair of the preempting resources of the selection Existing resource is defined as exclusive discovery resource.

Optionally, the preempting resources for passing through selection as different embodiments, transmitter 113, in the multiple seizing Sequence is seized in the transmission on time slot of seizing that at least one of gap sends state, and the receiver 114 is seized the multiple The seizing on time slot of at least one of time slot listening state listens to other UE and have selected identical preempting resources, then the hair Device 113 is sent no longer to seize sequence in the transmission on time slot of seizing of follow-up transmission state.

Optionally, the preempting resources for passing through selection as different embodiments, transmitter 113, in the multiple seizing At least one of gap is sent seizing on time slot for state and seizes sequence with the power transmission that can be listened to using base station.

Optionally, as different embodiments, processor 111 selects following send opportunity frame：According to parameter lambda and thresholding Percentage A is at most allowed to select the UE number k of identical discovery resource after determining once to select, and the selection according to k and UE is monitored Or the number of time slot is seized described in the probability joint determination for sending, wherein the threshold percentage A is one finding in resource There is the probability of multiple UE, the parameter lambda is that competition finds the UE numbers of resource and finds the ratio of resource number.

Optionally, as different embodiments, processor 111 is specifically for selecting following send opportunity frame：It is described to rob Account for the summation of number of time slots of the number of time slots for needed for k UE collision solves to 2 UE collisions to solve, k >=2.

Optionally, as different embodiments, send opportunity frame of the processor 111 specifically for the following form of selection：Institute In stating send opportunity frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize subframe and the biography There is honeycomb sub-frame interval between defeated subframe.

Optionally, as different embodiments, processor 111 selects the send opportunity frame of following form：The transmitter Can be in frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize subframe and the transmission subframe it Between there is no a honeycomb sub-frame interval, and when seizing sequence and being seized by first of the monitoring-seize subframe of all of UE Gap sends once.

The preempting resources that user equipment 110 is selected by processor, in the monitoring-seize subframe of send opportunity frame one It is individual seize on time slot send seize sequence, monitor the preempting resources that other UE are used；By analysis, the preempting resources of selection are determined Exclusivity, according to preempting resources and the one-to-one relationship for finding resource, it is determined that exclusive discovery resource；Transmitter is by hair The transmission subframe of chance frame is sent to send D2Dcode in exclusive discovery resource；Thereby reduce resource collision number of times, and then UE Emitting times are reduced, the power consumption of UE is saved.

Figure 12 is the schematic block diagram of the device 120 of the utilization resource contention of another embodiment of the present invention.Device 120 includes connecing Receipts machine 121, processor 122 and memory 123.Device 120 can be network side equipment, such as base station, with user equipment 110 etc. Constitute wireless network.

Receiver 121 is, for example, wireless receiver or wireless transmitting-receiving equipments.Processor 122 can be general processor, number Word signal processor（DSP）, application specific integrated circuit（ASIC）, ready-made programmable gate array（FPGA）Or other FPGAs Device, discrete gate or transistor logic, discrete hardware components, it is possible to achieve or the public affairs in the execution embodiment of the present invention Each method, step and the logic diagram opened, and by bus and other device two-way communications.General processor can be microprocessor Device or the processor can also be any conventional processors etc..The step of method with reference to disclosed in the embodiment of the present invention, can Completion is performed to be embodied directly in hardware decoding processor, or execution is combined with the hardware in decoding processor and software module Complete.Software module may be located at random access memory, flash memory, read-only storage, programmable read only memory or electrically-erasable In the ripe storage medium in this areas such as programmable storage, register.The storage medium is located at memory 123, processor 122 The information in memory 123 is read, with reference to the step of its hardware completion above method.Memory 123 and processor 122 can also It is integrated into using the physical module of the embodiment of the present invention, is stored on the physical module and the embodiment of the present invention is realized in operation Program.

Instruction needed for the storage computing device following methods of memory 123.

The receiver of receiver 121, the send opportunity frame for receiving UE transmissions, wherein the send opportunity frame includes prison Subframe and transmission subframe are listened-seize, the monitoring-seize subframe seizes time slot including multiple.

Processor 122 is according to the send opportunity frame, it is determined that finding the seizure condition or idle condition of resource；Scheduling is idle Discovery resource.

Device 120 obtains the occupancy and free time for finding resource by monitoring the send opportunity frame that the UE of competitive resource sends State, the discovery resource such that it is able to dispatch idle condition is used for other UE for having neither part nor lot in resource contention, improves resource Utilization rate.

Optionally, as different embodiments, receiver 121 receives preempting resources of the UE by selection, in the transmission What the seizing of the monitoring of chance frame-seize subframe sent on time slot seizes sequence；Processor 122 is provided due to preempting resources with discovery There is one-to-one relationship in source, according to the preempting resources of the selection, determine that the preempting resources of the selection are corresponding and find money Source is seizure condition, and others find that resource is idle condition.

Optionally, as different embodiments, in the send opportunity frame that receiver 121 is received, the monitoring-seize Before the transmission subframe, and the monitoring-seize also has honeycomb sub-frame interval to subframe between subframe and the transmission subframe.

Optionally, as different embodiments, in the send opportunity frame that receiver 121 is received, the monitoring-seize Before the transmission subframe, and the monitoring-seize does not have honeycomb sub-frame interval, institute to subframe between subframe and the transmission subframe Some UE's seizes sequence and to seize time slot by first of the monitoring-seize subframe and send once.

Device 120 realizes method 50, and processor finds the send opportunity of the UE of resource by the competition that receiver is received Frame, obtains the occupancy and idle condition for finding resource, and the discovery resource such that it is able to dispatch idle condition has neither part nor lot in money for other The UE of source competition is used, and improves the utilization rate of resource.

Device 120 combines with device 80,90 or 110, in same wireless network, by using send opportunity frame, The utilization rate of Radio Resource can be not only improved, the power consumption of UE can also be saved.

Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein Unit and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel Described function, but this realization can be realized it is not considered that exceeding using distinct methods to each specific application The scope of the present invention.

It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, can be with Realize by another way.For example, device embodiment described above is only schematical, for example, the unit Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, for example multiple units or component Can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces Close or communicate to connect, can be electrical, mechanical or other forms.

The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme 's.

In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.

If the function is to realize in the form of SFU software functional unit and as independent production marketing or when using, can be with Storage is in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter Calculation machine software product is stored in a storage medium, including some instructions are used to so that a computer equipment（Can be individual People's computer, server, or network equipment etc.）Perform all or part of step of each embodiment methods described of the invention. And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory）, arbitrary access deposits Reservoir（RAM, Random Access Memory）, magnetic disc or CD etc. are various can be with the medium of store program codes.

The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (36)

1. a kind of method of resource contention, it is characterised in that including：

Selection send opportunity frame, wherein the send opportunity frame includes monitoring-seizing subframe and transmission subframe, the monitoring-rob Account for subframe and seize time slot including multiple；

Seize whether different user devices on time slot select identical to seize money by the multiple for analyzing the monitoring-seize subframe Source, the discovery resource for determining selection is exclusive discovery resource, and preempting resources have one-to-one relationship with discovery resource；

Neighbouring identity indication code is sent in the exclusive discovery resource by the transmission subframe.

2. method according to claim 1, it is characterised in that the multiple by analyzing the monitoring-seize subframe Seize whether different user devices on time slot select identical preempting resources, the discovery resource for determining selection is exclusive discovery money Source, including：

By select preempting resources, it is the multiple seize at least one of time slot send state seize on time slot send Seize sequence,

Seize seizing on time slot at least one of time slot listening state and listen to other UE and do not select phase the multiple Same preempting resources, it is determined that the preempting resources of the selection are corresponding to find that resource is exclusive discovery resource.

3. method according to claim 2, it is characterised in that further include：

It is the multiple seize at least one of time slot listening state seize on time slot listen to other UE have selected it is identical Preempting resources, then no longer follow-up transmission state seize on time slot send seize sequence.

4. method according to claim 2, it is characterised in that the preempting resources by selection, robs the multiple Sequence is seized in the transmission on time slot of seizing for accounting at least one of time slot transmission state, including：

By the preempting resources for selecting, it is the multiple seize at least one of time slot send state seize on time slot so that The power that can be listened to base station sends seizes sequence.

5. method according to claim 1, it is characterised in that：

The number for seizing time slot, is that the probability joint monitored or send according to the selection of k and UE determines that wherein k is According to most UE numbers for allowing to select identical discovery resource that parameter lambda and threshold percentage A determine, the threshold percentage A It is the probability for having multiple UE in a discovery resource, the parameter lambda is that competition finds the UE numbers of resource and finds resource number Ratio.

6. method according to claim 5, it is characterised in that：

It is described to seize the summation that number of time slots collides the number of time slots needed for solution is solved to 2 UE collisions for k UE, k >=2.

7. the method according to any one of claim 1 to 6, it is characterised in that the monitoring-seize subframe in the transmission Before subframe, the monitoring-seize also has honeycomb sub-frame interval between subframe and the transmission subframe.

8. the method according to any one of claim 1 to 6, it is characterised in that the monitoring-seize subframe in the transmission Before subframe, the monitoring-seize does not have honeycomb sub-frame interval between subframe and the transmission subframe, and all of UE seizes sequence Row will seize time slot and send once by first of the monitoring-seize subframe.

9. a kind of method of utilization resource contention, it is characterised in that including：

The send opportunity frame that UE sends is received, wherein the send opportunity frame includes monitoring-seizing subframe and transmission subframe, it is described Monitor-seize subframe and seize time slot including multiple；

By monitor UE it is described seize time slot send seize sequence, it is determined that find resource seizure condition or idle condition, There is one-to-one relationship with discovery resource in preempting resources；

Dispatch idle discovery resource.

10. method according to claim 9, it is characterised in that the send opportunity frame that the reception UE sends, including：

Preempting resources of the UE by selection are received, is sent in the seizing on time slot for monitoring-seize subframe of the send opportunity frame Seize sequence；According to the send opportunity frame, it is determined that find the seizure condition or idle condition of resource including：

Determine that the preempting resources of the selection are corresponding and find that resource is seizure condition, others find that resource is idle condition.

11. method according to claim 9 or 10, it is characterised in that the monitoring-seize subframe in the transmission subframe Before, the monitoring-seize also has honeycomb sub-frame interval between subframe and the transmission subframe.

12. method according to claim 9 or 10, it is characterised in that the monitoring-seize subframe in the transmission subframe Before, the monitoring-seize does not have honeycomb sub-frame interval between subframe and the transmission subframe, all of UE's seizes sequence and to lead to Cross first of the monitoring-seize subframe and seize time slot and send once.

13. a kind of user equipment (UE)s, it is characterised in that including select unit, determining unit and transmitting element：

The select unit, for selecting send opportunity frame, wherein the send opportunity frame includes monitoring-seizing subframe and transmission Subframe, the monitoring-seize subframe seizes time slot including multiple；

The determining unit, be for seizing different user devices on time slot by analyzing the multiple of the monitoring-seize subframe No selection identical preempting resources, determine that selected discovery resource is exclusive discovery resource, preempting resources and discovery resource The one-to-one relationship of presence；

The transmitting element, indicates for sending neighbouring identity in the exclusive discovery resource by the transmission subframe Code.

14. user equipmenies according to claim 13, it is characterised in that the user equipment also includes monitoring unit：

The transmitting element, specifically for the preempting resources by selection, at least one of time slot hair is seized the multiple The transmission on time slot of seizing of state is sent to seize sequence；

The monitoring unit, specifically for it is the multiple seize at least one of time slot listening state seize on time slot supervise Other UE are heard either with or without selection identical preempting resources,

The determining unit, specifically for the monitoring unit in the multiple at least one of time slot listening state seized Seize on time slot when listening to other UE and not selecting identical preempting resources, according to preempting resources with find resource is present one One corresponding relation, then be defined as exclusive discovery resource by the corresponding discovery resource of the preempting resources of the selection.

15. user equipmenies according to claim 14, it is characterised in that the user equipment also includes control unit：

Described control unit, for seizing robbing at least one of time slot listening state the multiple in the monitoring unit Account on time slot when listening to other UE and have selected identical preempting resources, control the transmitting element no longer in follow-up transmission shape Sequence is seized in the transmission on time slot of seizing of state.

16. user equipmenies according to claim 14, it is characterised in that：

The transmitting element, specifically for the preempting resources by selection, at least one of time slot hair is seized the multiple Send state seize on time slot with the power that can be listened to using base station send described in seize sequence.

17. user equipment according to any one of claim 13 to 16, it is characterised in that the select unit specifically for The following send opportunity frame of selection：

The number of time slot is seized described in the send opportunity frame, is the probability to monitor or sending according to the selection of k and UE What joint determined, wherein k is most allow to select identical discovery resource UE determined according to parameter lambda and threshold percentage A Number, the threshold percentage A is a probability for finding to have multiple UE in resource, and the parameter lambda is the UE that competition finds resource The ratio of number and discovery resource number.

18. user equipmenies according to claim 17, it is characterised in that the select unit specifically for selection below Send opportunity frame：

Time slot of the number of time slots for needed for k UE collision solves to 2 UE collisions to solve is seized described in the send opportunity frame The summation of number, k >=2.

19. user equipment according to any one of claim 13 to 16, it is characterised in that the select unit specifically for Select the send opportunity frame of following form：

In the send opportunity frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize subframe and There is honeycomb sub-frame interval between the transmission subframe.

20. user equipment according to any one of claim 13 to 16, it is characterised in that the select unit specifically for Select the send opportunity frame of following form：

In the send opportunity frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize subframe and There is no honeycomb sub-frame interval between the transmission subframe, the sequence of seizing of all of UE will be by the monitoring-seize subframe Time slot is seized for first to send once.

21. a kind of devices of utilization resource contention, it is characterised in that including receiving unit, determining unit and scheduling unit：

The receiving unit, for receive UE transmission send opportunity frame, wherein the send opportunity frame include monitor-seize son Frame and transmission subframe, the monitoring-seize subframe seize time slot including multiple；

The determining unit, for by monitor UE it is described seize that time slot sends seize sequence, it is determined that finding that resource is accounted for With state or idle condition, there is one-to-one relationship in preempting resources and discovery resource；

The scheduling unit, the discovery resource for dispatching the free time.

22. devices according to claim 21, it is characterised in that：

The receiving unit receives preempting resources of the UE by selection, in the monitoring-seize robbing for subframe of the send opportunity frame Account on time slot send seize sequence；

There is one-to-one relationship in the determining unit, money is seized according to the selection due to preempting resources with discovery resource Source, determines that the preempting resources of the selection are corresponding and finds that resource is seizure condition, others find that resource is idle condition.

23. device according to claim 21 or 22, it is characterised in that the send opportunity that the receiving unit is received In frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize between subframe and the transmission subframe Also honeycomb sub-frame interval.

24. device according to claim 21 or 22, it is characterised in that the send opportunity that the receiving unit is received In frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize between subframe and the transmission subframe There is no a honeycomb sub-frame interval, all of UE's seizes sequence and to seize time slot by monitoring-seize first of subframe and send one It is secondary.

25. a kind of user equipmenies, it is characterised in that including processor, memory and transmitter：

The memory, is connected with the processor, the instruction needed for for storing the computing device operations described below；

The processor, for selecting send opportunity frame, wherein the send opportunity frame includes monitoring-seizing subframe and transmission Frame, the monitoring-seize subframe seizes time slot including multiple；Time slot is seized by the multiple for analyzing the monitoring-seize subframe Whether upper different user devices select identical preempting resources, determine that selected discovery resource is exclusive discovery resource, rob Account for resource and there is one-to-one relationship with discovery resource；

The transmitter, for sending neighbouring identity indication code in the exclusive discovery resource by the transmission subframe.

26. user equipmenies according to claim 25, it is characterised in that also including receiver：

The preempting resources that the transmitter passes through selection, seizing for state is sent in the multiple at least one of time slot of seizing Sent on time slot and seize sequence, and

The receiver seizes seizing on time slot at least one of time slot listening state and listens to other UE the multiple Without selection identical preempting resources,

The processor, specifically for there is one-to-one relationship with discovery resource according to preempting resources, then by the selection Preempting resources are corresponding to find that resource is defined as exclusive discovery resource.

27. user equipmenies according to claim 26, it is characterised in that also including receiver：

The preempting resources that the transmitter passes through selection, seizing for state is sent in the multiple at least one of time slot of seizing Sent on time slot and seize sequence, and

The receiver seizes seizing on time slot at least one of time slot listening state and listens to other UE the multiple Identical preempting resources are have selected, then the transmitter no longer seizes sequence in the transmission on time slot of seizing of follow-up transmission state Row.

28. user equipmenies according to claim 26, it is characterised in that：

The preempting resources that the transmitter passes through selection, seizing for state is sent in the multiple at least one of time slot of seizing Sent with the power that can be listened to using base station on time slot and seize sequence.

29. user equipment according to any one of claim 25 to 28, it is characterised in that below the processor selection Send opportunity frame：

At most allow to select the identical UE number k for finding resource after determining once to select according to parameter lambda and threshold percentage A, The number of time slot is seized described in the probability joint determination of selection monitoring or transmission according to k and UE, wherein the thresholding percentage It is a probability for finding to have multiple UE in resource than A, the parameter lambda is that competition finds the UE numbers of resource and finds resource Several ratio.

30. user equipmenies according to claim 29, it is characterised in that the processor is specifically for the hair below selection Send chance frame：

It is described to seize the summation that number of time slots collides the number of time slots needed for solution is solved to 2 UE collisions for k UE, k >=2.

31. user equipment according to any one of claim 25 to 28, it is characterised in that the processor is specifically for choosing Select the send opportunity frame of following form：

In the send opportunity frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize subframe and There is honeycomb sub-frame interval between the transmission subframe.

32. user equipment according to any one of claim 25 to 28, it is characterised in that the processor selects following lattice The send opportunity frame of formula：

In the send opportunity frame, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize subframe and There is no honeycomb sub-frame interval between the transmission subframe, the sequence of seizing of all of UE will be by the monitoring-seize subframe Time slot is seized for first to send once.

33. a kind of devices of utilization resource contention, it is characterised in that including receiver, processor and memory：

The memory, the instruction needed for for storing computing device following methods；

The receiver, for receive UE transmission send opportunity frame, wherein the send opportunity frame include monitor-seize subframe With transmission subframe, the monitoring-seize subframe seizes time slot including multiple；The processor, for by monitoring UE described That seizes time slot transmission seizes sequence, it is determined that finding the seizure condition or idle condition of resource, preempting resources are deposited with discovery resource In one-to-one relationship；Dispatch idle discovery resource.

34. devices according to claim 33, it is characterised in that：

The receiver receives preempting resources of the UE by selection, in the monitoring-seize seizing for subframe of the send opportunity frame What is sent on time slot seizes sequence；

There is one-to-one relationship with discovery resource due to preempting resources in the processor, according to the preempting resources of the selection, Determine that the preempting resources of the selection are corresponding and find that resource is seizure condition, others find that resource is idle condition.

35. device according to claim 33 or 34, it is characterised in that the send opportunity frame that the receiver is received In, the monitoring-seize subframe before the transmission subframe, and the monitoring-seize between subframe and the transmission subframe also There is honeycomb sub-frame interval.

36. device according to claim 33 or 34, it is characterised in that the send opportunity frame that the receiver is received In, before the transmission subframe, and the monitoring-seize does not have the monitoring-seize subframe between subframe and the transmission subframe There is a honeycomb sub-frame interval, all of UE's seizes sequence and to seize time slot by monitoring-seize first of subframe and send once.