CN103517276B - D2D communication method, user equipment and base station - Google Patents

D2D communication method, user equipment and base station Download PDF

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Publication number
CN103517276B
CN103517276B CN201210220171.6A CN201210220171A CN103517276B CN 103517276 B CN103517276 B CN 103517276B CN 201210220171 A CN201210220171 A CN 201210220171A CN 103517276 B CN103517276 B CN 103517276B
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CN
China
Prior art keywords
ue
subregion
frequency spectrum
uplink frequency
occupancy information
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CN201210220171.6A
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Chinese (zh)
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CN103517276A (en
Inventor
张兴炜
冯淑兰
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华为技术有限公司
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/0406Wireless resource allocation involving control information exchange between nodes
    • H04W72/042Wireless resource allocation involving control information exchange between nodes in downlink direction of a wireless link, i.e. towards terminal

Abstract

The embodiment of the invention provides a D2D communication method, user equipment and a base station. The method includes the steps that first UE receives frequency spectrum occupied information from the base station, the frequency spectrum occupied information is used for indicating uplink spectrum resources occupied by at least one partition, and the at least one partition is obtained by the way of dividing a cell covered by the base station; the first UE selects first uplink spectrum resources from an uplink spectrum resource set which can be used for D2D communications of the first UE, the first uplink spectrum resources and second UE are used for conducting D2D communications, and the uplink spectrum resource set is determined by the first UE according to the frequency spectrum occupied information. According to the D2D communication method, the user equipment and the base station, the first UE can select the first uplink spectrum resources from the uplink spectrum resource set which can be used for D2D communications of the first UE determined according to the frequency spectrum occupied information, the first uplink spectrum resources and the second UE can be used for conducting D2D communications, hence, the uplink spectrum resources of an existing network can be used for realizing D2D communications, and the utilization rate of the uplink spectrum resources can be improved.

Description

Communication between devices method, user equipment and base station

Technical field

The present invention relates to the communications field, and in particular it relates to communication between devices method, user equipment and base station.

Background technology

With developing rapidly for radio communication, super large rate business(Such as HD video)Generation, cause wireless communication networks The load of network is increasingly weighed.

In order to mitigate the load of cordless communication network, equipment room(Device to Device, D2D)The research of communication pattern It is increasingly subject to pay attention to.Under D2D communication patterns, can be with direction communication between terminal and terminal, it is not necessary to forward through base station, because This can mitigate the load of base station.But, how to carry out D2D communications using frequency spectrum resource becomes the problem that needs consider.

The content of the invention

The embodiment of the present invention provides communication between devices method, user equipment and base station, effectively utilizes the upper of existing network Line frequency spectrum resource realizes that D2D communicates, and can improve the utilization rate of uplink frequency spectrum resource.

On the one hand, there is provided a kind of communication between devices method, including:First user equipment UE is taken from base station received spectrum Information, the Spectrum Occupancy Information are used to indicate the uplink frequency spectrum resource shared by least one subregion that at least one subregion to be The cell covered to the base station carries out dividing what is obtained;First UE can be used in equipment room D2D communications from a UE The first uplink frequency spectrum resource is selected in uplink frequency spectrum resource set, and is carried out with the 2nd UE using first uplink frequency spectrum resource D2D communicates, and the wherein uplink frequency spectrum resource set is that a UE is determined according to the Spectrum Occupancy Information.

On the other hand, there is provided a kind of communication between devices method, including:Determine Spectrum Occupancy Information, the frequency spectrum takes letter Cease for indicating the uplink frequency spectrum resource shared by least one subregion, at least one subregion is the cell covered to base station Carry out dividing what is obtained;The Spectrum Occupancy Information is sent to first user equipment UE, so that a UE can from a UE The first uplink frequency spectrum resource is selected in uplink frequency spectrum resource set for equipment room D2D communications, and using the line frequency on first Spectrum resource and the 2nd UE carry out D2D communications, and the wherein uplink frequency spectrum resource set is a UE according to the Spectrum Occupancy Information It is determined that.

On the other hand, there is provided a kind of user equipment, including:Receiving unit, for from base station received spectrum occupied information, The Spectrum Occupancy Information is used to indicate the uplink frequency spectrum resource shared by least one subregion that at least one subregion to be to the base Covered cell of standing carries out dividing what is obtained;Communication unit, for can be used in equipment room D2D communications from a UE The first uplink frequency spectrum resource is selected in line frequency spectrum resource set, and D2D is carried out using first uplink frequency spectrum resource and the 2nd UE Communication, wherein the uplink frequency spectrum resource set are that a UE is determined according to the Spectrum Occupancy Information.

On the other hand, there is provided a kind of base station, including:Determining unit, for determining Spectrum Occupancy Information, the frequency spectrum takes Information is used to indicate the uplink frequency spectrum resource shared by least one subregion that at least one subregion to be covered to base station little Area carries out dividing what is obtained;Transmitting element, for sending the Spectrum Occupancy Information to first user equipment UE, so as to a UE Can be used in the first uplink frequency spectrum resource being selected in the uplink frequency spectrum resource set of equipment room D2D communications from a UE, and make D2D communications are carried out with first uplink frequency spectrum resource and the 2nd UE, wherein the uplink frequency spectrum resource set be a UE according to What the Spectrum Occupancy Information determined.

In the embodiment of the present invention, as Spectrum Occupancy Information indicates the uplink frequency spectrum resource shared by least one subregion, And at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from accounting for according to the frequency spectrum The UE determined with information selects the first uplink frequency spectrum resource and the in can be used in the uplink frequency spectrum resource set of D2D communications Two UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D communicates, and can carry The utilization rate of high uplink frequency spectrum resource.

Description of the drawings

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to making needed for the embodiment of the present invention Accompanying drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings Accompanying drawing.

Fig. 1 is the schematic diagram of an example of the scene that can apply the embodiment of the present invention.

Fig. 2 is the indicative flowchart of D2D communication means according to embodiments of the present invention.

Fig. 3 is the indicative flowchart of D2D communication means according to embodiments of the present invention.

Fig. 4 is the indicative flowchart of the process of D2D communication means according to embodiments of the present invention.

Fig. 5 is the schematic diagram of an example of the division subregion of the according to embodiments of the present invention scene for being applicable to Fig. 1.

Fig. 6 is of the uplink frequency spectrum resource distribution of the according to embodiments of the present invention scene for being applicable to Fig. 1 and Fig. 5 The schematic diagram of example.

Fig. 7 is an example of the form of the Spectrum Occupancy Information of the according to embodiments of the present invention example for being applicable to Fig. 6 The schematic diagram of son.

Fig. 8 is another example of the form of the Spectrum Occupancy Information of the according to embodiments of the present invention example for being applicable to Fig. 6 The schematic diagram of son.

Fig. 9 is another example of the form of the Spectrum Occupancy Information of the according to embodiments of the present invention example for being applicable to Fig. 6 The schematic diagram of son.

Figure 10 is the example that the uplink frequency spectrum resource of the according to embodiments of the present invention scene for being applicable to Fig. 5 is divided Schematic diagram.

Figure 11 is the schematic block diagram of user equipment according to embodiments of the present invention.

Figure 12 is the schematic block diagram of base station according to embodiments 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 present invention, rather than whole embodiments.Based on this Embodiment in bright, the every other reality obtained on the premise of creative work is not made by those of ordinary skill in the art Example is applied, should all belong to the scope of protection of the invention.

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

In the embodiment of the present invention, user equipment(User Equipment, UE), also referred to as mobile terminal(Mobile Terminal, MT), mobile subscriber equipment etc., can be with Jing wireless access networks(For example, Radio Access Network, RAN)With One or more core nets are communicated, and user equipment can be mobile terminal, such as mobile phone(Or it is referred to as " honeycomb " phone) With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or it is vehicle-mounted Mobile device.

In the embodiment of the present invention, base station can be the base station in GSM or CDMA(Base Transceiver Station, BTS), or the base station in WCDMA(NodeB), can also be the evolved base station in LTE(Evolved Node B, ENB or e-NodeB), it is of the invention not limit.

Fig. 1 is the schematic diagram of an example of the scene that can apply the embodiment of the present invention.It should be noted that the example of Fig. 1 be for Help those skilled in the art more fully understand the embodiment of the present invention, and the scope of the unrestricted embodiment of the present invention.

In fig. 1, it is assumed that base station 110 covers 3 sectors 130a, 130b and 130c in certain carrier wave.Base station 110 is served 8 UE, 8 UE are located at 3 sectors respectively.For example, UE 120a, UE120b and UE 120c are located at sector 130a.UE 120d and UE 120e are located at sector 130b.UE 120f, UE 120g and UE 120h are located at sector 130c.

In 8 UE, D2D communications between the UE with D2D abilities, can be carried out.For example, it is assumed that UE 120a, UE 120b and UE 120c are respectively provided with D2D communication capacities, then UE 120a and UE 120b can carry out D2D communications, and UE 120a can also be with UE 120c carry out D2D communications, and UE 120b can also carry out D2D communications with UE 120c.So, the UE with D2D communication capacities Between can by D2D communication carry out data transmission, need not move through base station forwarding.

It should be noted that for convenience of description, 3 sectors of the base station on certain carrier wave, but the present invention are only described in Fig. 1 Embodiment is not limited to this, and base station can also possess the sector on other carrier waves.Additionally, the number of UE serviced by base station is also Can be less or more, the embodiment of the present invention is also not construed as limiting to this.

Fig. 2 is the indicative flowchart of D2D communication means according to embodiments of the present invention.The method of Fig. 2 is performed by UE.

, from base station received spectrum occupied information, the Spectrum Occupancy Information is used to indicate at least one subregion institute for 210, a UE The uplink frequency spectrum resource of occupancy, at least one subregion are that the cell covered to the base station carries out dividing what is obtained.

220, a UE select the first uplink spectrum in can be used in the uplink frequency spectrum resource set that D2D communicates from a UE Resource, and D2D communications are carried out using the first uplink frequency spectrum resource and the 2nd UE, wherein uplink frequency spectrum resource set is a UE roots Determine according to Spectrum Occupancy Information.

First UE and the 2nd UE can carry out D2D communications using uplink frequency spectrum resource, due to uplink frequency spectrum resource be for Uplink communications of the UE to base station, and the capacity of resisting disturbance of base station is better than UE, therefore D2D communications are carried out using uplink frequency spectrum resource, The interference to the communication in existing network between UE and base station can be reduced.

In the embodiment of the present invention, as Spectrum Occupancy Information indicates the uplink frequency spectrum resource shared by least one subregion, And at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from accounting for according to the frequency spectrum The UE determined with information selects the first uplink frequency spectrum resource and the in can be used in the uplink frequency spectrum resource set of D2D communications Two UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D communicates, and can carry The utilization rate of high uplink frequency spectrum resource.

Alternatively, as one embodiment, in step 210, Spectrum Occupancy Information can serve to indicate that whole subregion institutes The uplink frequency spectrum resource of occupancy, or Spectrum Occupancy Information can serve to indicate that the uplink spectrum shared by a UE places subregion Uplink frequency spectrum resource shared by resource and/or the 2nd UE places subregion, or the Spectrum Occupancy Information can serve to indicate that Uplink spectrum money shared by other subregions in whole subregions in addition to a UE places subregion and/or the 2nd UE places subregion Source.

Specifically, the cell that base station is covered on a carrier wave can be divided into multiple subregions by base station.So UE The Spectrum Occupancy Information received from base station can indicate the uplink frequency spectrum resource shared by whole subregions.Or, frequency spectrum takes letter Breath can indicate the uplink frequency spectrum resource shared by a UE places subregion, it is also possible to indicate shared by a UE places subregion Uplink frequency spectrum resource shared by uplink frequency spectrum resource and the 2nd UE places subregion, it is also possible to indicate shared by the 2nd UE places subregion Uplink frequency spectrum resource.Or, Spectrum Occupancy Information can indicate its in whole subregions in addition to a UE places subregion Uplink frequency spectrum resource shared by its subregion, it is also possible to a UE places subregion is removed in indicating whole subregions and the 2nd UE is located and divides The uplink frequency spectrum resource shared by other subregions outside area, it is also possible in the whole subregions of instruction in addition to the 2nd UE places subregion Other subregions shared by uplink frequency spectrum resource.

Alternatively, during as another embodiment, in a step 220, uplink frequency spectrum resource set can include whole subregions The uplink frequency spectrum resource shared by other subregions in addition to a UE places subregion and/or the 2nd UE places subregion.

Alternatively, as another embodiment, in a step 220, a UE can be selected from uplink frequency spectrum resource set And uplink frequency spectrum resource with twoth UE place subregion non-conterminous other subregions non-conterminous with a UE places subregion is used as One uplink frequency spectrum resource.So by excluding the subregion adjacent and adjacent with the 2nd UE places subregion with a UE places subregion Uplink frequency spectrum resource, farthest can reduce interfering other UE and from the interference of other UE.

Alternatively, as another embodiment, in step 210, a UE can pass through Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH)Downlink Control Information is received from base station(Downlink Control Information, DCI), the DCI includes Spectrum Occupancy Information.Or, a UE can be by PDCCH from base station DCI is received, the DCI is used to indicate Spectrum Occupancy Information in Physical Downlink Shared Channel(Physical Downlink Shared Channel, PDSCH)The running time-frequency resource position of upper occupancy, and PDSCH is passed through from base station received spectrum occupied information according to DCI. Or, a UE can pass through Physical Multicast Channel(Physical Multicast Channel, PMCH)Frequency is received from base station Spectrum occupied information.Or, a UE can pass through Physical Broadcast Channel(Physical Broadcast Channel, PBCH)From Base station received spectrum occupied information.

Alternatively, as another embodiment, above-mentioned DCI ends can add 16 bit cyclic redundancies(Cyclic Redundancy Check, CRC), the CRC can be by one group of UE public Radio Network Temporary Identifier(Radio Network Temporary Identifier, RNTI)Scrambled, one group of UE includes a UE.It is, a UE is connect by PDCCH The DCI including Spectrum Occupancy Information for receiving can be aimed at one group of UE including a UE.Or, a UE passes through PDCCH The DCI for indicating running time-frequency resource position that Spectrum Occupancy Information is taken on PDSCH for receiving can be aimed at including the One group of UE of one UE.

Alternatively, as another embodiment, in step 210, a UE can from base station receive base station N subframes to The(N+k-1)The Spectrum Occupancy Information sent in arbitrary subframe in subframe, Spectrum Occupancy Information can serve to indicate that(N+k) Uplink frequency spectrum resource in subframe shared by least one subregion, wherein N and k are positive integer.Generally, base station in N subframes Jing completes(N+k)The uplink frequency spectrum resource distribution of subframe, therefore, base station can be in N subframes to the(N+k-1)In subframe Spectrum Occupancy Information is sent in any one subframe.For FDD(Frequency Division Duplexing, FDD) Standard, k can be 4.For time division duplex(Time Division Duplexing, TDD)Standard, k can be 4,5,6 or 7.

Alternatively, as another embodiment, after step 220, Negative Acknowledgement is received from the 2nd UE in a UE (Negative Acknowledge, NACK)In the case of message, a UE can select from uplink frequency spectrum resource set Two uplink frequency spectrum resources, and D2D communications are carried out using the second uplink frequency spectrum resource and the 2nd UE.For example, if other carry out D2D The UE of communication also have selected the first uplink frequency spectrum resource, then the D2D between meeting and a UE and the 2nd UE communicates and clashes, Cause the D2D communication failures between a UE and the 2nd UE.As such, it is possible to adopt hybrid automatic request to retransmit(Hybrid Automatic Repeat reQuest, HARQ)Mechanism.After a UE receives NACK message from the 2nd UE, a UE The second uplink frequency spectrum resource can be reselected, communicating by D2D with the 2nd UE carries out data re-transmission, so as to solve resource contention Problem.

Alternatively, as another embodiment, in a step 220, a UE can be from the one of uplink frequency spectrum resource set The first uplink frequency spectrum resource is selected in subset.For example, uplink frequency spectrum resource set can include multiple subsets, so, carry out D2D The UE of communication can select uplink frequency spectrum resource from different subsets, and these can be avoided to carry out providing between the UE of D2D communications Source selects conflict.

Alternatively, as another embodiment, in a step 220, a UE can generate random number, and according to random number from The first uplink frequency spectrum resource is selected in uplink frequency spectrum resource set.Selections of the UE to the first uplink frequency spectrum resource is caused so Randomization, can avoid carrying out resource selection between the UE of D2D communications with other and clash.

Alternatively, as another embodiment, in above-mentioned Spectrum Occupancy Information, an allocation unit is corresponded to per m bits, should M bits are used to indicate the subregion belonging to the corresponding allocation unit of m bits, and the corresponding whole allocation units of Spectrum Occupancy Information Arrange in order, wherein m is positive integer.Or, in above-mentioned Spectrum Occupancy Information, a subregion is corresponded to per x bits, X bits are used to indicate at least one allocation unit shared by the corresponding subregion of x bits, and the Spectrum Occupancy Information is corresponding Whole subregions are arranged in order, and wherein x is positive integer.Or, in above-mentioned Spectrum Occupancy Information, each bit is corresponded to Whether one allocation unit, the bit are used to indicate the corresponding allocation unit of the bit by a UE places subregion and/or second Shared by the subregion of UE places, and the corresponding whole allocation units of Spectrum Occupancy Information are arranged in order.Wherein, above-mentioned point Multiple continuous Resource Block groups can be included with unit(Resource Block Group, RBG).

In the embodiment of the present invention, as Spectrum Occupancy Information indicates the uplink frequency spectrum resource shared by least one subregion, And at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from accounting for according to the frequency spectrum The UE determined with information selects the first uplink frequency spectrum resource and the in can be used in the uplink frequency spectrum resource set of D2D communications Two UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D communicates, and can carry The utilization rate of high uplink frequency spectrum resource.

Fig. 3 is the indicative flowchart of D2D communication means according to embodiments of the present invention.The method of Fig. 3 is performed by base station.

310, determine Spectrum Occupancy Information, the Spectrum Occupancy Information is used to indicate the upper line frequency shared by least one subregion Spectrum resource, at least one subregion are that the cell covered to base station carries out dividing what is obtained.

320, Spectrum Occupancy Information is sent to a UE, so that a UE can be used in the up of D2D communications from a UE The first uplink frequency spectrum resource is selected in frequency spectrum resource set, and D2D communications is carried out using the first uplink frequency spectrum resource and the 2nd UE, Wherein uplink frequency spectrum resource set is that a UE is determined according to Spectrum Occupancy Information.

It is in the embodiment of the present invention, up shared by Spectrum Occupancy Information at least one subregion of instruction determined due to base station Frequency spectrum resource, and at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from root The UE determined according to the Spectrum Occupancy Information selects line frequency on first in can be used in the uplink frequency spectrum resource set that D2D communicates Spectrum resource and the 2nd UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D leads to Letter, and the utilization rate of uplink frequency spectrum resource can be improved.

Alternatively, as one embodiment, in the step 310, Spectrum Occupancy Information can serve to indicate that whole subregion institutes The uplink frequency spectrum resource of occupancy, or Spectrum Occupancy Information can serve to indicate that the uplink spectrum shared by a UE places subregion Uplink frequency spectrum resource shared by resource and/or the 2nd UE places subregion, or the Spectrum Occupancy Information can serve to indicate that Uplink spectrum money shared by other subregions in whole subregions in addition to a UE places subregion and/or the 2nd UE places subregion Source.

Specifically, the cell that base station is covered on a carrier wave can be divided into multiple subregions by base station.So UE The Spectrum Occupancy Information received from base station can indicate the uplink frequency spectrum resource shared by whole subregions.Or, frequency spectrum takes letter Breath can indicate the uplink frequency spectrum resource shared by a UE places subregion, it is also possible to indicate shared by a UE places subregion Uplink frequency spectrum resource shared by uplink frequency spectrum resource and the 2nd UE places subregion, it is also possible to indicate shared by the 2nd UE places subregion Uplink frequency spectrum resource.Or, Spectrum Occupancy Information can indicate its in whole subregions in addition to a UE places subregion Uplink frequency spectrum resource shared by its subregion, it is also possible to a UE places subregion is removed in indicating whole subregions and the 2nd UE is located and divides The uplink frequency spectrum resource shared by other subregions outside area, it is also possible in the whole subregions of instruction in addition to the 2nd UE places subregion Other subregions shared by uplink frequency spectrum resource.

Alternatively, during as another embodiment, in step 320, uplink frequency spectrum resource set can include whole subregions The uplink frequency spectrum resource shared by other subregions in addition to a UE places subregion and/or the 2nd UE places subregion.

Alternatively, as another embodiment, in step 320, base station can send DCI to a UE by PDCCH, should DCI includes Spectrum Occupancy Information.Or, base station can send DCI to a UE by PDCCH, and the DCI is used to indicate that frequency spectrum is accounted for The running time-frequency resource position taken on PDSCH with information, and Spectrum Occupancy Information is sent to a UE by PDSCH.Or, base Stand and can pass through PMCH to one group of UE transmission Spectrum Occupancy Information including a UE.Or, base station can be by PBCH to bag One group of UE for including a UE sends Spectrum Occupancy Information.

Alternatively, as another embodiment, above-mentioned DCI ends can add 16 bit CRC, and the CRC is public by one group of UE RNTI scrambled, one group of UE includes a UE.It is, base station can pass through PDCCH to one group of UE including a UE Transmission includes the DCI of Spectrum Occupancy Information.Or, base station can be sent to one group of UE including a UE by PDCCH to be used for Indicate the DCI of the running time-frequency resource position that Spectrum Occupancy Information is taken on PDSCH.

Alternatively, as another embodiment, in step 320, base station can be in N subframes to(N+k-1)In subframe Arbitrary subframe in send Spectrum Occupancy Information to a UE, Spectrum Occupancy Information is used to indicate the(N+k)At least one in subframe Uplink frequency spectrum resource shared by individual subregion, wherein N and k are positive integer.Generally, base station has completed in N subframes(N+k) The uplink frequency spectrum resource distribution of subframe, therefore, base station can be in N subframes to the(N+k-1)Any one subframe in subframe Middle transmission Spectrum Occupancy Information.For FDD standards, k can be 4.For TDD standards, k can be 4,5,6 or 7.

Alternatively, as another embodiment, in step 320, base station can send frequency to one group of UE including a UE Spectrum occupied information, wherein, one group of UE can be the whole UE in the first UE places subregion, or one group of UE can be to include first Whole UE in multiple adjacent sectors of UE places subregion, or one group of UE can be whole UE of whole subregions, or one group UE can be the UE with D2D abilities in the subregion of a UE places, or one group of UE can be to include that a UE is located The UE with D2D abilities in multiple adjacent sectors of subregion, or one group of UE can be whole subregions with D2D abilities UE, or one group of UE can be the whole UE in the angles that are located of a UE of wave beam alignment, or one group of UE can be wave beam The UE with D2D abilities in angle that first UE of alignment is located.

Specifically, base station can send Spectrum Occupancy Information to the whole UE in a UE places subregion, it is also possible to bag The whole UE included in multiple adjacent sectors of a UE places subregion send Spectrum Occupancy Information, it is also possible to into whole subregions Whole UE send Spectrum Occupancy Information.Base station can be with to the transmission frequency spectrums of the UE with D2D abilities in a UE places subregion Occupied information, it is also possible to send frequency spectrum to the UE with D2D abilities in the multiple adjacent sectors including a UE places subregion Occupied information, it is also possible to send Spectrum Occupancy Information to the UE with D2D abilities in whole subregions.The embodiment of the present invention is to this It is not construed as limiting.If additionally, smart antenna array or 3D are supported in base station(3-dimensional)Waveform figuration(Beamforming, BF)Deng orientation work( Can, then base station can send Spectrum Occupancy Information to the whole UE in a UE places angle of wave beam alignment, it is also possible to Xiang Bo The UE with D2D communication capacities in first UE places angle of beam alignment sends Spectrum Occupancy Information.

Alternatively, as another embodiment, before step 310, the cell covered by base station can be divided into by base station Multiple subregions.

Alternatively, as another embodiment, before step 310, base station can according to the angle of radiation of the antenna of base station, The cell covered by base station is divided into into multiple fanned partitions.Or, base station can be according to the coverage of base station, by base station institute The cell of covering is divided into multiple annular subregions.

Alternatively, as another embodiment, the cell covered by base station can be evenly divided into multiple subregions by base station. For example, the cell covered by base station can be evenly divided into multiple sectors according to the angle of radiation of the antenna of base station by base station Subregion.The cell covered by base station can also be evenly divided into multiple annular subregions according to the coverage of base station by base station.

Alternatively, as another embodiment, in above-mentioned Spectrum Occupancy Information, an allocation unit is corresponded to per m bits, should M bits are used to indicate the subregion belonging to the corresponding allocation unit of m bits, and the corresponding whole allocation units of Spectrum Occupancy Information Arrange in order, m is positive integer.Or, in above-mentioned Spectrum Occupancy Information, a subregion, x ratios are corresponded to per x bits It is special to be used to indicate at least one allocation unit shared by the corresponding subregion of x bits, and the corresponding whole point of Spectrum Occupancy Information Area arranges in order, and wherein x is positive integer.Or, in above-mentioned Spectrum Occupancy Information, each bit corresponds to one point With unit, the bit is used to indicate whether the corresponding allocation unit of the bit is located by a UE places subregion and/or the 2nd UE Shared by subregion, and the corresponding whole allocation units of Spectrum Occupancy Information are arranged in order.Wherein, above-mentioned allocation unit Including multiple continuous RBG.

It is in the embodiment of the present invention, up shared by Spectrum Occupancy Information at least one subregion of instruction determined due to base station Frequency spectrum resource, and at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from root The UE determined according to the Spectrum Occupancy Information selects line frequency on first in can be used in the uplink frequency spectrum resource set that D2D communicates Spectrum resource and the 2nd UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D leads to Letter, and the utilization rate of uplink frequency spectrum resource can be improved.

The embodiment of the present invention is described in detail below in conjunction with specific example.It should be noted that these examples are intended merely to help Those skilled in the art more fully understand the embodiment of the present invention, and the scope of the unrestricted embodiment of the present invention.

Fig. 4 is the indicative flowchart of the process of D2D communication means according to embodiments of the present invention.Below in conjunction with Fig. 1 Scene Fig. 4 is described in detail.

In fig. 4, it is assumed that a UE is UE120a, the 2nd UE is UE120b.Base station can be the base station 110 in Fig. 1.

401, base station 110 is divided into multiple subregions to the cell covered by base station 110.

Division of the base station 110 to multiple subregions can be division geographically.

Alternatively, base station 110 can be according to the angle of radiation of the antenna of base station 110, the little Division covered by base station For multiple fanned partitions.For example, the cell covered by base station 110 equally or disproportionately can be divided into by base station 110 Multiple fanned partitions.

Alternatively, the cell covered by base station can be divided into multiple by base station 110 according to the coverage of base station 110 Annular subregion.For example, the cell that base station 110 can be covered by base station 110 is equally or disproportionately divided into multiple rings Shape subregion.

After base station 110 divides multiple subregions, each UE that base station 110 is serviced can possess a partition identifier. For the UE positioned at two subregion demarcation lines can possess two partition identifiers, so there is no need to require base station to UE Positioning it is too accurate.

Fig. 5 is the schematic diagram of an example of the division subregion of the according to embodiments of the present invention scene for being applicable to Fig. 1. In Figure 5, identical reference in Fig. 1 is continued to use with the same or analogous parts of Fig. 1.In Figure 5, base station 110 can be according to Base station 110 is divided into 6 fanned partitions in the cell covered by certain carrier wave by the angle of radiation of the antenna of base station 110.Wherein 8 UE are served in base station 110, have 3 UE to be located at the 1st subregion, i.e. UE 120a, UE 120b and UE 120c.UE 120d are located at 3rd subregion, UE 120e are located at the 4th subregion, and UE 120f, UE 120g and UE 120h are located at the 5th subregion.2nd subregion and the 6th point No UE in area.It should be noted that the example of Fig. 5 is to aid in those skilled in the art more fully understands the embodiment of the present invention, and The scope of the unrestricted embodiment of the present invention.For example, the cell covered by base station can also be divided into by base station otherwise Multiple subregions, the embodiment of the present invention are not construed as limiting to this.

402, base station 110 determines Spectrum Occupancy Information, and Spectrum Occupancy Information is used to indicate shared by least one subregion Uplink frequency spectrum resource.

Generally, base station 110 has completed in N subframes(N+k)The uplink frequency spectrum resource distribution of subframe, in each subframe Uplink frequency spectrum resource distribution be different, then the Spectrum Occupancy Information that base station determines is used to indicate the(N+k)In subframe extremely Uplink frequency spectrum resource shared by a few subregion.Wherein N and k is positive integer.For FDD standards, k can be 4.For TDD Standard, k can be 4,5,6 or 7.

Fig. 6 is of the uplink frequency spectrum resource distribution of the according to embodiments of the present invention scene for being applicable to Fig. 1 and Fig. 5 The schematic diagram of example.Assume the(N+k)In subframe, base station 110 scheduled 6 UE, i.e. the UE 120c of the 1st subregion, the 3rd point The UE 120e of the UE 120d and the 4th subregion in area, and UE 120f, the UE 120g and UE 120h of the 5th subregion.Such as Fig. 6 institutes Show, base station 110 is all assigned with 2 clusters to UE 120e and UE 120f.Base station 110 to UE 120c, UE 120d, UE 120g and UE120h is respectively assigned with 1 cluster.Each cluster may include one or more continuous allocation units.Each allocation unit may include many Individual continuous RBG.In Fig. 6, it is assumed that each allocation unit may include P RBG.One example of the value of P is as shown in table 1.

Under 1 different bandwidth of table in allocation unit RBG number P

Alternatively, Spectrum Occupancy Information can serve to indicate that the uplink frequency spectrum resource shared by whole subregions, or frequency spectrum Occupied information is can serve to indicate that shared by uplink frequency spectrum resource and/or the 2nd UE places subregion shared by a UE places subregion Uplink frequency spectrum resource, or a UE places subregion is removed during the Spectrum Occupancy Information can serve to indicate that whole subregions And/or the 2nd uplink frequency spectrum resource shared by other subregions outside the subregion of UE places.

Alternatively, in Spectrum Occupancy Information, an allocation unit is may correspond to per m bits, the m bits can serve to indicate that The subregion belonging to the corresponding allocation unit of m bits, and the corresponding whole allocation units of Spectrum Occupancy Information are to arrange in order Row, m is positive integer.

Alternatively, in Spectrum Occupancy Information, a subregion is may correspond to per x bits, x bits can serve to indicate that x bits At least one allocation unit shared by corresponding subregion, and the corresponding whole subregions of Spectrum Occupancy Information are to arrange in order , wherein x is positive integer.

Alternatively, in Spectrum Occupancy Information, each bit corresponds to an allocation unit, and the bit can serve to indicate that this Whether the corresponding allocation unit of bit is shared by a UE places subregion and/or the 2nd UE places subregion, and frequency spectrum takes letter Cease corresponding whole allocation units to arrange in order.In this case, Spectrum Occupancy Information can be reduced to boolean Number.

Describe the form of the Spectrum Occupancy Information of the embodiment of the present invention below in conjunction with specific example in detail.It should be noted that under The example of face Fig. 7 to Fig. 9 is to aid in those skilled in the art and more fully understands the embodiment of the present invention, and the unrestricted present invention The scope of embodiment.

Fig. 7 is an example of the form of the Spectrum Occupancy Information of the according to embodiments of the present invention example for being applicable to Fig. 6 The schematic diagram of son.As shown in fig. 7, in Spectrum Occupancy Information, every 3 bit corresponds to an allocation unit, these allocation units with The order of the allocation unit in Fig. 6 is consistent.For example, in the figure 7, first 3 bit " 101 " can represent the 1st distribution Unit belongs to the 5th subregion;Second 3 bit " 011 " can represent that the 2nd allocation unit belongs to the 3rd subregion;3rd 3 bits " 100 " can represent that the 3rd allocation unit belongs to the 4th subregion.The like.

Fig. 8 is another example of the form of the Spectrum Occupancy Information of the according to embodiments of the present invention example for being applicable to Fig. 6 The schematic diagram of son.

As shown in figure 8, in Spectrum Occupancy Information, one subregion of every 6 bit correspondence.Corresponding 6 subregions of spectrum information are Arrange in order, that is, be consistent with the order of the subregion in Fig. 5.Can be by predefined list or predefined Calculation, obtain every 6 bit and indicate the allocation unit shared by corresponding subregion.For example, in fig. 8, can be by pre- The list of definition learns that first 6 bit " 000110 " can represent that the allocation unit shared by the 1st subregion is reciprocal 4th Allocation unit;Second 6 bit " 000000 " can represent that the 2nd subregion does not take allocation unit;3rd 6 bits " 000011 " can represent that the allocation unit shared by the 3rd subregion is the 2nd allocation unit.The like.It should be noted that above-mentioned number The citing of value is intended merely to help those skilled in the art to more fully understand the embodiment of the present invention, and the unrestricted embodiment of the present invention Scope.

Fig. 9 is another example of the form of the Spectrum Occupancy Information of the according to embodiments of the present invention example for being applicable to Fig. 6 The schematic diagram of son.As shown in figure 9, in Spectrum Occupancy Information, each bit corresponds to an allocation unit.Whole bits are corresponding The order of whole allocation units is consistent with the order of the allocation unit in Fig. 6.When hypothesis bit is " 0 ", the bit is represented Shared by the 1st subregion that corresponding allocation unit is not located by UE 120a and UE120b.When bit is " 1 ", the bit pair is represented The allocation unit answered is shared by the 1st subregion.

403, the Spectrum Occupancy Information that base station 110 is determined in UE120a forwarding steps 402.

Alternatively, base station 110 can send Spectrum Occupancy Information to one group of UE, wherein, one group of UE at least includes UE 120a, or one group of UE is at least including the whole UE in the subregion of UE 120a places.

Base station 110 can send Spectrum Occupancy Information to one group of UE including a UE, wherein, one group of UE can be UE The whole UE in the 1st subregion that 120a is located, or one group of UE can be the whole in the multiple adjacent sectors for include the 1st subregion UE, or one group of UE can be whole UE of whole subregions, or one group of UE can be with D2D abilities in the 1st subregion UE, or one group of UE can be the UE with D2D abilities in the multiple adjacent sectors for include the 1st subregion, or one group of UE can Think the UE with D2D abilities of whole subregions, or one group of UE can be in the angle at UE 120a places of wave beam alignment Whole UE, or one group of UE can be the UE with D2D abilities in the angles that are located of UE 120a of wave beam alignment.

Specifically, base station 110 can send Spectrum Occupancy Information to whole UE of the 1st subregion, it is also possible to including the 1st point Whole UE of multiple adjacent sectors in area send Spectrum Occupancy Information, it is also possible to send frequency spectrum to whole UE of whole subregions and take Information.Base station 110 can send Spectrum Occupancy Information with the UE with D2D abilities to the 1st subregion, it is also possible to including the 1st The UE with D2D abilities of multiple adjacent sectors of subregion sends Spectrum Occupancy Information, it is also possible to whole subregions with D2D The UE of ability sends Spectrum Occupancy Information.The embodiment of the present invention is not construed as limiting to this.If base station 110 support smart antenna array or The orientating functions such as 3D BF, then base station 110 can be to whole UE of the UE120a places angle of wave beam alignment or with D2D communications The UE of ability sends Spectrum Occupancy Information.

Alternatively, base station 110 can be in N subframes to(N+k-1)Send to UE120a in arbitrary subframe in subframe For indicating the(N+k)The Spectrum Occupancy Information of the uplink frequency spectrum resource in subframe shared by least one subregion, wherein N and k For positive integer.

Alternatively, base station 110 can send DCI to UE120a by PDCCH, and the DCI includes Spectrum Occupancy Information.Example Such as, the DCI can be using similar DCI format(format)3/3A.The DCI ends can add 16 bit CRC, and the CRC is by wrapping One group of public RNTI of UE for including UE120a is scrambled.

Alternatively, base station 110 can send DCI to UE 120a by PDCCH, and the DCI is used to indicate Spectrum Occupancy Information The running time-frequency resource position taken on PDSCH, and Spectrum Occupancy Information is sent to a UE by PDSCH.For example, the DCI is also The modulation coding mode of Spectrum Occupancy Information can be indicated(Modulation and Coding Scheme, MCS)In related letter Breath.The DCI ends can add 16 bit CRC, and the CRC is scrambled by one group of public RNTI of UE including UE 120a.

Alternatively, base station 110 can pass through PMCH to one group of UE transmission Spectrum Occupancy Information including UE 120a.

Alternatively, base station 110 can pass through PBCH to one group of UE transmission Spectrum Occupancy Information including UE 120a.

According to the Spectrum Occupancy Information in step 403,404, UE 120a determine that UE 120a can be used in the upper of D2D communications Line frequency spectrum resource set.

Alternatively, UE 120a can determine uplink frequency spectrum resource set, uplink frequency spectrum resource according to Spectrum Occupancy Information Set can be including shared by other subregions in whole subregions in addition to UE 120a place subregions and/or UE 120b places subregion Uplink frequency spectrum resource.

In the diagram, UE 120a and UE 120b are in the 1st subregion, then uplink frequency spectrum resource set can include the 2nd point Uplink frequency spectrum resource shared by area to the 6th subregion.

405, UE 120a select the first uplink frequency spectrum resource from uplink frequency spectrum resource set.

Alternatively, UE 120a can from the 2nd subregion to the uplink frequency spectrum resource shared by the 6th subregion in select first on Line frequency spectrum resource.

Alternatively, UE 120a can from the 3rd subregion to the uplink frequency spectrum resource shared by the 5th subregion in select first on Line frequency spectrum resource.So, by excluding and the uplink frequency spectrum resource of the 1st subregion adjacent sectors, farthest can avoid with Interference between other UE.

In addition, if UE 120a are respectively at different subregions from UE 120b, such as UE 120b are located at the 2nd subregion, that UE 120a can select the first uplink frequency spectrum resource in the uplink frequency spectrum resource from the 3rd to the 6th shared by subregion.Further, UE 120a can select the first uplink frequency spectrum resource from the uplink frequency spectrum resource shared by the 4th subregion and the 5th subregion.So, By excluding the uplink frequency spectrum resource with the 1st subregion and the 2nd subregion adjacent sectors, farthest can avoid with other UE it Between interference.

Alternatively, UE 120a can select the first uplink frequency spectrum resource from a subset of uplink frequency spectrum resource set. Uplink frequency spectrum resource set can include multiple subsets.UE 120a can select the first uplink frequency spectrum resource from certain subset, The interference between the UE of D2D communications is carried out with other to avoid.For example, UE 120c will carry out D2D communications with UE 120d, then Uplink frequency spectrum resource can be selected from another subset of uplink frequency spectrum resource set, so as to avoid selecting with UE 120a the One uplink frequency spectrum resource mutually conflicts.

Figure 10 is the example that the uplink frequency spectrum resource of the according to embodiments of the present invention scene for being applicable to Fig. 5 is divided Schematic diagram.In Fig. 10, the uplink frequency spectrum resource of the 1st subregion can continue to be divided, and can include multiple subsets.For example, UE 120a are according to location, it is possible to use the uplink frequency spectrum resource of the 3rd subregion.In such manner, it is possible to farthest avoid with Other UE that D2D communications are carried out select identical uplink frequency spectrum resource.

Alternatively, UE 120a can generate random number, and select first according to random number from uplink frequency spectrum resource set Uplink frequency spectrum resource.So be able to can avoid the UE of D2D communications is carried out with other with the selection of randomization uplink frequency spectrum resource Select identical uplink frequency spectrum resource such that it is able to avoid the conflict of uplink frequency spectrum resource.

406, UE 120a carry out D2D communication with UE 120b using the first uplink frequency spectrum resource selected in step 405.

407, if UE 120a and UE 120b are by D2D communication failures, UE 120b send NACK to UE 120a and disappear Breath.

For example, if UE 120a and other UE that D2D communications are carried out have selected the first uplink frequency spectrum resource, send out Raw resource contention, the D2D communication failures between UE 120a and UE 120b.UE 120b can send NACK to UE 120a and disappear Breath, that is, the data transmission fails by D2D communication links are notified to UE 120a.

408, UE 120a select the second uplink frequency spectrum resource from uplink frequency spectrum resource set.

409, UE 120a carry out D2D communication with UE120b using the second uplink frequency spectrum resource selected in step 408.

UE 120a can use the second uplink frequency spectrum resource, carry out data re-transmission to UE 120b by D2D communication links.

It should be understood that the size of the sequence number of above-mentioned each process is not meant to the priority of execution sequence, the execution of each process is suitable Sequence should be determined with its function and internal logic, and should not constitute any restriction to the implementation process of the embodiment of the present invention.

In the embodiment of the present invention, as Spectrum Occupancy Information indicates the uplink frequency spectrum resource shared by least one subregion, And at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from accounting for according to the frequency spectrum The UE determined with information selects the first uplink frequency spectrum resource and the in can be used in the uplink frequency spectrum resource set of D2D communications Two UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D communicates, and can carry The utilization rate of high uplink frequency spectrum resource.

Figure 11 is the schematic block diagram of user equipment according to embodiments of the present invention.The user equipment 1100 of Figure 11 includes receiving Unit 1110 and communication unit 1120.

From base station received spectrum occupied information, Spectrum Occupancy Information is used to indicate at least one subregion institute receiving unit 1110 The uplink frequency spectrum resource of occupancy, at least one subregion are that the cell covered to base station carries out dividing what is obtained.Communication unit The first uplink frequency spectrum resource is selected in the 1120 uplink frequency spectrum resource set that can be used in D2D communications from a UE, and use the One uplink frequency spectrum resource and the 2nd UE carry out D2D communications, and wherein uplink frequency spectrum resource set is that a UE takes letter according to frequency spectrum What breath determined.

In the embodiment of the present invention, as Spectrum Occupancy Information indicates the uplink frequency spectrum resource shared by least one subregion, And at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from accounting for according to the frequency spectrum The UE determined with information selects the first uplink frequency spectrum resource and the in can be used in the uplink frequency spectrum resource set of D2D communications Two UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D communicates, and can carry The utilization rate of high uplink frequency spectrum resource.

Other functions of user equipment 1100 and operation are can refer in the embodiment of the method for Fig. 2 and Fig. 4 to Figure 10 above It is related to the process of UE, in order to avoid repeating, here is omitted.

Alternatively, as one embodiment, Spectrum Occupancy Information may be used to indicate the uplink spectrum shared by whole subregions Resource, or Spectrum Occupancy Information may be used to indicate uplink frequency spectrum resource and/or the 2nd UE shared by a UE places subregion Uplink frequency spectrum resource shared by the subregion of place, or Spectrum Occupancy Information may be used to indicate in whole subregions except a UE is located The uplink frequency spectrum resource shared by other subregions outside subregion and/or the 2nd UE places subregion.

Alternatively, as another embodiment, uplink frequency spectrum resource set divides except a UE is located in may include whole subregions The uplink frequency spectrum resource shared by other subregions outside area and/or the 2nd UE places subregion.

Alternatively, as another embodiment, communication unit 1120 can be selected from uplink frequency spectrum resource set and a UE Place subregion is non-conterminous and uplink frequency spectrum resource with non-conterminous other subregions of the 2nd UE places subregion is used as line frequency on first Spectrum resource.

Alternatively, as another embodiment, in above-mentioned Spectrum Occupancy Information, an allocation unit is may correspond to per m bits, M bits may be used to indicate the subregion belonging to the corresponding allocation unit of m bits, and the corresponding whole allocation units of Spectrum Occupancy Information Arrange in order, wherein m is positive integer;Or, in above-mentioned Spectrum Occupancy Information, one point is may correspond to per x bits Area, x bits may be used to indicate at least one allocation unit shared by the corresponding subregion of x bits, and Spectrum Occupancy Information correspondence Whole subregions arrange in order, wherein x be positive integer;Or, in above-mentioned Spectrum Occupancy Information, each bit can be right Ying Yuyi allocation unit, the bit may be used to indicate the corresponding allocation unit of bit whether by a UE places subregion and/or Shared by 2nd UE places subregion, and the corresponding whole allocation units of Spectrum Occupancy Information are arranged in order;Wherein, on Stating allocation unit includes multiple continuous RBG.

Alternatively, as another embodiment, receiving unit 1110 can receive DCI from base station by PDCCH, and the DCI can be wrapped Include Spectrum Occupancy Information;Or, DCI can be received from base station by PDCCH, the DCI may be used to indicate Spectrum Occupancy Information and exist The running time-frequency resource position taken on PDSCH, and PDSCH is passed through from base station received spectrum occupied information according to the DCI;Or, can By PMCH from the base station received spectrum occupied information;Or, can be by PBCH from base station received spectrum occupied information.

Alternatively, as another embodiment, above-mentioned DCI ends can add 16 bit CRC, and the CRC can be by one group of UE Public RNTI is scrambled, and one group of UE may include a UE.

Alternatively, as another embodiment, receiving unit 1110 can receive base station in N subframes to the from base station(N+k- 1)The Spectrum Occupancy Information sent in arbitrary subframe in subframe, Spectrum Occupancy Information are used to indicate the(N+k)In subframe at least Uplink frequency spectrum resource shared by one subregion, wherein N and k are positive integer.

Alternatively, as another embodiment, communication unit 1120 can also receive NACK message from the 2nd UE in a UE In the case of, select the second uplink frequency spectrum resource from uplink frequency spectrum resource set, and use the second uplink frequency spectrum resource and the Two UE carry out D2D communications.

Alternatively, as another embodiment, communication unit 1120 can be selected from a subset of uplink frequency spectrum resource set Select the first uplink frequency spectrum resource.

Alternatively, as another embodiment, communication unit 1120 can generate random number, and according to random number from uplink spectrum The first uplink frequency spectrum resource is selected in resource collection.

In the embodiment of the present invention, as Spectrum Occupancy Information indicates the uplink frequency spectrum resource shared by least one subregion, And at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from accounting for according to the frequency spectrum The UE determined with information selects the first uplink frequency spectrum resource and the in can be used in the uplink frequency spectrum resource set of D2D communications Two UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D communicates, and can carry The utilization rate of high uplink frequency spectrum resource.

Figure 12 is the schematic block diagram of base station according to embodiments of the present invention.The base station 1200 of Figure 12 includes determining unit 1210 With transmitting element 1220.

Determining unit 1210 determines Spectrum Occupancy Information, and Spectrum Occupancy Information is used to indicate shared by least one subregion Uplink frequency spectrum resource, at least one subregion are that the cell covered to base station carries out dividing what is obtained.Transmitting element 1220 is to One UE sends Spectrum Occupancy Information, so that a UE can be used in selecting in the uplink frequency spectrum resource set of D2D communications from a UE The first uplink frequency spectrum resource is selected, and D2D communications, wherein uplink frequency spectrum resource is carried out using the first uplink frequency spectrum resource and the 2nd UE Set is that a UE is determined according to Spectrum Occupancy Information.

It is in the embodiment of the present invention, up shared by Spectrum Occupancy Information at least one subregion of instruction determined due to base station Frequency spectrum resource, and at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from root The UE determined according to the Spectrum Occupancy Information selects line frequency on first in can be used in the uplink frequency spectrum resource set that D2D communicates Spectrum resource and the 2nd UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D leads to Letter, and the utilization rate of uplink frequency spectrum resource can be improved.

Other functions of base station 1200 and operation are related to the mistake of base station in can refer to the embodiment of the method for Fig. 3 to Figure 10 above Journey, in order to avoid repeating, here is omitted.

Alternatively, as one embodiment, Spectrum Occupancy Information may be used to indicate the uplink spectrum shared by whole subregions Resource, or Spectrum Occupancy Information may be used to indicate uplink frequency spectrum resource and/or the 2nd UE shared by a UE places subregion Uplink frequency spectrum resource shared by the subregion of place, or Spectrum Occupancy Information may be used to indicate in whole subregions except a UE is located The uplink frequency spectrum resource shared by other subregions outside subregion and/or the 2nd UE places subregion.

Alternatively, as another embodiment, uplink frequency spectrum resource set divides except a UE is located in may include whole subregions The uplink frequency spectrum resource shared by other subregions outside area and/or the 2nd UE places subregion.

Alternatively, as another embodiment, in above-mentioned Spectrum Occupancy Information, an allocation unit is may correspond to per m bits, The m bits may be used to indicate the subregion belonging to the corresponding allocation unit of m bits, and the corresponding all distribution of Spectrum Occupancy Information Unit is arranged in order, and wherein m is positive integer;Or, in above-mentioned Spectrum Occupancy Information, one is may correspond to per x bits Individual subregion, the x bits may be used to indicate at least one allocation unit shared by the corresponding subregion of x bits, and frequency spectrum takes letter Cease corresponding whole subregions to arrange in order, wherein x is positive integer;Or, in above-mentioned Spectrum Occupancy Information, each ratio Spy may correspond to an allocation unit, and whether the bit may be used to indicate the corresponding allocation unit of bit by a UE places subregion And/or the 2nd shared by the subregion of UE places, and the corresponding whole allocation units of Spectrum Occupancy Information are arranged in order;Its In, above-mentioned allocation unit may include multiple continuous RBG.

Alternatively, as another embodiment, transmitting element 1220 can send DCI to a UE by PDCCH, and the DCI can Including Spectrum Occupancy Information;Or, DCI can be sent to a UE by PDCCH, the DCI may be used to indicate Spectrum Occupancy Information The running time-frequency resource position taken on PDSCH, and Spectrum Occupancy Information is sent to a UE by the PDSCH;Or, can pass through PMCH sends Spectrum Occupancy Information to one group of UE including a UE;Or, PBCH can be passed through to one group of UE including a UE Send Spectrum Occupancy Information.

Alternatively, as another embodiment, above-mentioned DCI ends can add 16 bit CRC, and the CRC is public by one group of UE RNTI scrambled, one group of UE includes a UE.

Alternatively, as another embodiment, transmitting element 1220 can be in N subframes to(N+k-1)It is arbitrary in subframe Spectrum Occupancy Information is sent to a UE in subframe, Spectrum Occupancy Information may be used to indicate the(N+k)At least one point in subframe Uplink frequency spectrum resource shared by area, wherein N and k are positive integer.

Alternatively, as another embodiment, transmitting element 1220 can send frequency spectrum to one group of UE including a UE and take Information, wherein, one group of UE is the whole UE in a UE places subregion, or one group of UE is include a UE places subregion many Whole UE in individual adjacent sectors, or whole UE that one group of UE is whole subregions, or one group of UE is a UE places subregion The interior UE with D2D abilities, or one group of UE is with D2D energy in the multiple adjacent sectors for include a UE places subregion The UE of power, or the UE with D2D abilities that one group of UE is whole subregions, or the UE that one group of UE is wave beam alignment is located Angle in whole UE, or the UE with D2D abilities in the angles that are located of the UE that one group of UE is wave beam alignment.

Alternatively, as another embodiment, base station 1200 may also include division unit 1230, for it is determined that frequency spectrum takes Before information, the cell covered by base station is divided into into multiple subregions.

Alternatively, as another embodiment, division unit 1230 can be according to the angle of radiation of the antenna of base station, by base station institute The cell of covering is divided into multiple fanned partitions;Or, can be according to the coverage of base station, the little Division covered by base station For multiple annular subregions.

Alternatively, as another embodiment, the cell covered by base station can be evenly divided into many by division unit 1230 Individual subregion.

It is in the embodiment of the present invention, up shared by Spectrum Occupancy Information at least one subregion of instruction determined due to base station Frequency spectrum resource, and at least one subregion is the cell covered to base station carries out dividing what is obtained so that a UE can be from root The UE determined according to the Spectrum Occupancy Information selects line frequency on first in can be used in the uplink frequency spectrum resource set that D2D communicates Spectrum resource and the 2nd UE carry out D2D communications such that it is able to which the uplink frequency spectrum resource for effectively utilizing existing network realizes that D2D leads to Letter, and the utilization rate of uplink frequency spectrum resource can be improved.

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, being capable of being implemented in combination in 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 Each specific application can be used different methods to realize described function, but this realization it is not considered that exceeding The scope of the present invention.

Those skilled in the art can be understood 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 described 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 schematic, for example, the unit Divide, only a kind of division of logic function can have other dividing mode, such as multiple units or component when actually realizing Can with reference to or be desirably integrated into another system, or some features can be ignored, or 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 by some interfaces, device or unit Close or communicate to connect, can be electrical, mechanical or other forms.

The unit as separating component explanation 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 local to be located at one, or can also be distributed to multiple On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme 's.

In addition, 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 realized using in the form of SFU software functional unit and as independent production marketing or when using, can be with It is stored 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, is used so that a computer equipment including some instructions(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 aforesaid storage medium includes:USB flash disk, portable hard drive, read only memory(ROM, Read-Only Memory), random access memory deposits Reservoir(RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.

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

Claims (39)

1. a kind of communication between devices method, it is characterised in that include:
From base station received spectrum occupied information, the Spectrum Occupancy Information is used to indicate at least one subregion first user equipment UE Shared uplink frequency spectrum resource, at least one subregion are that the cell covered to the base station carries out dividing what is obtained;
First UE is selected on first in can be used in the uplink frequency spectrum resource set that equipment room D2D communicates from a UE Line frequency spectrum resource, and D2D communications are carried out using first uplink frequency spectrum resource and the 2nd UE, wherein the uplink frequency spectrum resource Set is that a UE is determined according to the Spectrum Occupancy Information.
2. method according to claim 1, it is characterised in that the Spectrum Occupancy Information is used to indicate shared by whole subregions Uplink frequency spectrum resource, or the Spectrum Occupancy Information is used for the upper line frequency that indicates shared by the subregion of a UE places Uplink frequency spectrum resource shared by spectrum resource and/or the 2nd UE places subregion, or the Spectrum Occupancy Information be used for refer to Show shared by other subregions in whole subregions in addition to a UE places subregion and/or the 2nd UE places subregion Uplink frequency spectrum resource.
3. method according to claim 2, it is characterised in that the uplink frequency spectrum resource set includes whole subregions In uplink spectrum money shared by other subregions in addition to a UE places subregion and/or the 2nd UE places subregion Source.
4. according to the method in claim 2 or 3, it is characterised in that a UE can be used in D2D from a UE The first uplink frequency spectrum resource is selected in the uplink frequency spectrum resource set of communication, including:
First UE select from the uplink frequency spectrum resource set it is non-conterminous with UE places subregion and with it is described The uplink frequency spectrum resource of non-conterminous other subregions of the 2nd UE places subregion is used as the first uplink frequency spectrum resource.
5. according to the method in claim 2 or 3, it is characterised in that
In the Spectrum Occupancy Information, an allocation unit is corresponded to per m bits, the m bits are used to indicate the m bits pair The subregion belonging to allocation unit answered, and the corresponding whole allocation units of the Spectrum Occupancy Information are arranged in order, Wherein m is positive integer;Or,
In the Spectrum Occupancy Information, a subregion is corresponded to per x bits, the x bits are used to indicate that the x bits are corresponding At least one allocation unit shared by subregion, and the corresponding whole subregions of the Spectrum Occupancy Information are to arrange in order , wherein x is positive integer;Or,
In the Spectrum Occupancy Information, each bit corresponds to an allocation unit, and the bit is used to indicate the bit pair Whether the allocation unit answered is shared by a UE places subregion and/or the 2nd UE places subregion, and the frequency spectrum The corresponding whole allocation units of occupied information are arranged in order;
Wherein, the allocation unit includes multiple continuous Resource Block groups RBG.
6. according to the method in any one of claims 1 to 3, it is characterised in that a UE is from base station received spectrum Occupied information, including:
First UE receives Downlink Control Information DCI, the DCI from the base station by physical downlink control channel PDCCH Including the Spectrum Occupancy Information;Or,
First UE receives DCI from the base station by PDCCH, and the DCI is used to indicate the Spectrum Occupancy Information in thing The running time-frequency resource position taken on reason DSCH Downlink Shared Channel PDSCH, and the PDSCH is passed through from the base station according to the DCI Receive the Spectrum Occupancy Information;Or,
First UE receives the Spectrum Occupancy Information from the base station by Physical Multicast Channel PMCH;Or,
First UE receives the Spectrum Occupancy Information from the base station by Physical Broadcast Channel PBCH.
7. method according to claim 6, it is characterised in that the DCI ends add 16 bit cyclic redundancies CRC, the CRC are scrambled by one group of public Radio Network Temporary Identifier RNTI of UE, and one group of UE includes described first UE。
8. according to the method in any one of claims 1 to 3, it is characterised in that a UE is from base station received spectrum Occupied information, including:
First UE is received from the base station and is sent out in arbitrary subframe of the base station in N subframes to (N+k-1) subframe The Spectrum Occupancy Information for sending, the Spectrum Occupancy Information is for shared by least one subregion described in instruction (N+k) subframe Uplink frequency spectrum resource, wherein N and k be positive integer.
9. according to the method in any one of claims 1 to 3, it is characterised in that methods described also includes:
In the case where a UE receives Negative Acknowledgement NACK message from the 2nd UE, a UE is on described The second uplink frequency spectrum resource is selected in line frequency spectrum resource set, and is entered with the 2nd UE using second uplink frequency spectrum resource Row D2D communicates.
10. according to the method in any one of claims 1 to 3, it is characterised in that a UE is from a UE energy The first uplink frequency spectrum resource is selected in being enough in the uplink frequency spectrum resource set of D2D communications, including:
First UE selects first uplink frequency spectrum resource from a subset of the uplink frequency spectrum resource set.
11. according to the method in any one of claims 1 to 3, it is characterised in that a UE is from a UE energy The first uplink frequency spectrum resource is selected in being enough in the uplink frequency spectrum resource set of D2D communications, including:
First UE generates random number, and selects described first according to the random number from the uplink frequency spectrum resource set Uplink frequency spectrum resource.
A kind of 12. communication between devices methods, it is characterised in that include:
Determine Spectrum Occupancy Information, the Spectrum Occupancy Information is used to indicate the uplink spectrum money shared by least one subregion Source, at least one subregion are that the cell covered to base station carries out dividing what is obtained;
The Spectrum Occupancy Information is sent to first user equipment UE, so that a UE can be used in setting from a UE The first uplink frequency spectrum resource is selected between standby in the uplink frequency spectrum resource set of D2D communications, and is provided using first uplink spectrum Source carries out D2D communications with the 2nd UE, wherein the uplink frequency spectrum resource set is a UE takes letter according to the frequency spectrum What breath determined.
13. methods according to claim 12, it is characterised in that the Spectrum Occupancy Information is used to indicate whole subregion institutes The uplink frequency spectrum resource of occupancy, or the Spectrum Occupancy Information be used for indicate it is up shared by the subregion of a UE places Uplink frequency spectrum resource shared by frequency spectrum resource and/or the 2nd UE places subregion, or the Spectrum Occupancy Information is used for Indicate other subregion institutes in addition to a UE places subregion and/or the 2nd UE places subregion in whole subregions The uplink frequency spectrum resource of occupancy.
14. methods according to claim 13, it is characterised in that the uplink frequency spectrum resource set includes the whole point The uplink spectrum shared by other subregions in area in addition to a UE places subregion and/or the 2nd UE places subregion Resource.
15. methods according to claim 13 or 14, it is characterised in that
In the Spectrum Occupancy Information, an allocation unit is corresponded to per m bits, the m bits are used to indicate the m bits pair The subregion belonging to allocation unit answered, and the corresponding whole allocation units of the Spectrum Occupancy Information are arranged in order, Wherein m is positive integer;Or,
In the Spectrum Occupancy Information, a subregion is corresponded to per x bits, the x bits are used to indicate that the x bits are corresponding At least one allocation unit shared by subregion, and the corresponding whole subregions of the Spectrum Occupancy Information are to arrange in order , wherein x is positive integer;Or,
In the Spectrum Occupancy Information, each bit corresponds to an allocation unit, and the bit is used to indicate the bit pair Whether the allocation unit answered is shared by a UE places subregion and/or the 2nd UE places subregion, and the frequency spectrum The corresponding whole allocation units of occupied information are arranged in order;
Wherein, the allocation unit includes multiple continuous Resource Block groups RBG.
16. methods according to any one of claim 12 to 14, it is characterised in that described to send the frequency to a UE Spectrum occupied information, including:
Downlink Control Information DCI is sent to a UE by physical downlink control channel PDCCH, the DCI includes described Spectrum Occupancy Information;Or,
DCI is sent to a UE by PDCCH, the DCI is used to indicate the Spectrum Occupancy Information in physical down altogether The running time-frequency resource position taken on channel PDSCH is enjoyed, and the frequency spectrum is sent to a UE by the PDSCH and take letter Breath;Or,
The Spectrum Occupancy Information is sent to one group of UE including a UE by Physical Multicast Channel PMCH;Or,
The Spectrum Occupancy Information is sent to one group of UE including a UE by Physical Broadcast Channel PBCH.
17. methods according to claim 16, it is characterised in that the DCI ends add 16 bit cyclic redundancies CRC, the CRC are scrambled by one group of public Radio Network Temporary Identifier RNTI of UE, and one group of UE includes described first UE。
18. methods according to any one of claim 12 to 14, it is characterised in that described to send the frequency to a UE Spectrum occupied information, including:
The Spectrum Occupancy Information, institute are sent to a UE in arbitrary subframe in N subframes to (N+k-1) subframe State Spectrum Occupancy Information for indicate (N+k) subframe described in uplink frequency spectrum resource shared by least one subregion, wherein N It is positive integer with k.
19. methods according to any one of claim 12 to 14, it is characterised in that described to send the frequency to a UE Spectrum occupied information, including:
The Spectrum Occupancy Information is sent to one group of UE including a UE, wherein, one group of UE is a UE Whole UE in the subregion of place, or one group of UE is complete in the multiple adjacent sectors for include UE places subregion Portion UE, or whole UE that one group of UE is whole subregions, or one group of UE is in the subregion of a UE places UE with D2D abilities, or one group of UE is having in the multiple adjacent sectors for include UE places subregion The UE of D2D abilities, or the UE with D2D abilities that one group of UE is whole subregions, or one group of UE be wave beam pair The whole UE in angle that an accurate UE is located, or the UE places that one group of UE is wave beam alignment The UE with D2D abilities in angle.
20. methods according to any one of claim 12 to 14, it is characterised in that in the determination Spectrum Occupancy Information Before, methods described also includes:
The cell covered by the base station is divided into into multiple subregions.
21. methods according to claim 20, it is characterised in that it is described the cell covered by the base station is divided into it is many Individual subregion, including:
According to the angle of radiation of the antenna of the base station, the cell covered by the base station is divided into into multiple fanned partitions;Or Person,
According to the coverage of the base station, the cell covered by the base station is divided into into multiple annular subregions.
22. methods according to claim 20, it is characterised in that it is described the cell covered by the base station is divided into it is many Individual subregion, including:
The cell covered by the base station is evenly divided into into the plurality of subregion.
23. a kind of user equipmenies, it is characterised in that include:
Receiving unit, for from base station received spectrum occupied information, the Spectrum Occupancy Information is used to indicate at least one subregion Shared uplink frequency spectrum resource, at least one subregion are that the cell covered to the base station carries out dividing what is obtained;
Communication unit, for can be used in first is selected in the uplink frequency spectrum resource set that equipment room D2D communicates from a UE Line frequency spectrum resource, and D2D communications are carried out using first uplink frequency spectrum resource and the 2nd UE, wherein the uplink frequency spectrum resource Set is that a UE is determined according to the Spectrum Occupancy Information.
24. user equipmenies according to claim 23, it is characterised in that the Spectrum Occupancy Information is used to indicate all to divide Uplink frequency spectrum resource shared by area, or the Spectrum Occupancy Information be used for indicate shared by the subregion of a UE places Uplink frequency spectrum resource shared by uplink frequency spectrum resource and/or the 2nd UE places subregion, or the Spectrum Occupancy Information For indicating other points in whole subregions in addition to a UE places subregion and/or the 2nd UE places subregion Uplink frequency spectrum resource shared by area;
The uplink frequency spectrum resource set removes a UE places subregion and/or the 2nd UE in including whole subregions The uplink frequency spectrum resource shared by other subregions outside the subregion of place;
The communication unit is specifically for selecting and UE places subregion not phase from the uplink frequency spectrum resource set Adjacent and uplink frequency spectrum resource with non-conterminous other subregions of the 2nd UE places subregion is used as the first uplink frequency spectrum resource.
25. user equipmenies according to claim 24, it is characterised in that
In the Spectrum Occupancy Information, an allocation unit is corresponded to per m bits, the m bits are used to indicate the m bits pair The subregion belonging to allocation unit answered, and the corresponding whole allocation units of the Spectrum Occupancy Information are arranged in order, Wherein m is positive integer;Or,
In the Spectrum Occupancy Information, a subregion is corresponded to per x bits, the x bits are used to indicate that the x bits are corresponding At least one allocation unit shared by subregion, and the corresponding whole subregions of the Spectrum Occupancy Information are to arrange in order , wherein x is positive integer;Or,
In the Spectrum Occupancy Information, each bit corresponds to an allocation unit, and the bit is used to indicate the bit pair Whether the allocation unit answered is shared by a UE places subregion and/or the 2nd UE places subregion, and the frequency spectrum The corresponding whole allocation units of occupied information are arranged in order;
Wherein, the allocation unit includes multiple continuous Resource Block groups RBG.
26. user equipmenies according to any one of claim 23 to 25, it is characterised in that the receiving unit is specifically used In Downlink Control Information DCI is received from the base station by physical downlink control channel PDCCH, the DCI includes the frequency spectrum Occupied information;Or, DCI is received from the base station by PDCCH, the DCI is used to indicate the Spectrum Occupancy Information in thing The running time-frequency resource position taken on reason DSCH Downlink Shared Channel PDSCH, and the PDSCH is passed through from the base station according to the DCI Receive the Spectrum Occupancy Information;Or, the Spectrum Occupancy Information is received from the base station by Physical Multicast Channel PMCH; Or, the Spectrum Occupancy Information is received from the base station by Physical Broadcast Channel PBCH.
27. user equipmenies according to any one of claim 23 to 25, it is characterised in that the receiving unit is specifically used The frequency spectrum sent in arbitrary subframe of the base station in N subframes to (N+k-1) subframe is received from the base station takes Information, the Spectrum Occupancy Information are used to indicate the uplink spectrum money described in (N+k) subframe shared by least one subregion Source, wherein N and k are positive integer.
28. user equipmenies according to any one of claim 23 to 25, it is characterised in that the communication unit is additionally operable to In the case where a UE receives Negative Acknowledgement NACK message from the 2nd UE, from the uplink frequency spectrum resource set The second uplink frequency spectrum resource of middle selection, and D2D communication is carried out with the 2nd UE using second uplink frequency spectrum resource.
29. user equipmenies according to any one of claim 23 to 25, it is characterised in that the communication unit is specifically used First uplink frequency spectrum resource is selected in a subset from the uplink frequency spectrum resource set.
30. user equipmenies according to any one of claim 23 to 25, it is characterised in that the communication unit is specifically used In generation random number, and the first uplink spectrum money is selected from the uplink frequency spectrum resource set according to the random number Source.
31. a kind of base stations, it is characterised in that include:
Determining unit, for determining Spectrum Occupancy Information, the Spectrum Occupancy Information is used to indicate shared by least one subregion Uplink frequency spectrum resource, at least one subregion is that the cell covered to base station carries out dividing what is obtained;
Transmitting element, for sending the Spectrum Occupancy Information to first user equipment UE, so that a UE is from described the One UE selects the first uplink frequency spectrum resource in can be used in the uplink frequency spectrum resource set that equipment room D2D communicates, and using described First uplink frequency spectrum resource and the 2nd UE carry out D2D communications, wherein the uplink frequency spectrum resource set be a UE according to What the Spectrum Occupancy Information determined.
32. base stations according to claim 31, it is characterised in that the Spectrum Occupancy Information is used to indicate whole subregion institutes The uplink frequency spectrum resource of occupancy, or the Spectrum Occupancy Information be used for indicate it is up shared by the subregion of a UE places Uplink frequency spectrum resource shared by frequency spectrum resource and/or the 2nd UE places subregion, or the Spectrum Occupancy Information is used for Indicate other subregion institutes in addition to a UE places subregion and/or the 2nd UE places subregion in whole subregions The uplink frequency spectrum resource of occupancy;
The uplink frequency spectrum resource set removes a UE places subregion and/or the 2nd UE in including whole subregions The uplink frequency spectrum resource shared by other subregions outside the subregion of place.
33. base stations according to claim 32, it is characterised in that
In the Spectrum Occupancy Information, an allocation unit is corresponded to per m bits, the m bits are used to indicate the m bits pair The subregion belonging to allocation unit answered, and the corresponding whole allocation units of the Spectrum Occupancy Information are arranged in order, Wherein m is positive integer;Or,
In the Spectrum Occupancy Information, a subregion is corresponded to per x bits, the x bits are used to indicate that the x bits are corresponding At least one allocation unit shared by subregion, and the corresponding whole subregions of the Spectrum Occupancy Information are to arrange in order , wherein x is positive integer;Or,
In the Spectrum Occupancy Information, each bit corresponds to an allocation unit, and the bit is used to indicate the bit pair Whether the allocation unit answered is shared by a UE places subregion and/or the 2nd UE places subregion, and the frequency spectrum The corresponding whole allocation units of occupied information are arranged in order;
Wherein, the allocation unit includes multiple continuous Resource Block groups RBG.
34. base stations according to any one of claim 31 to 33, it is characterised in that the transmitting element is specifically for logical Crossing physical downlink control channel PDCCH and Downlink Control Information DCI being sent to a UE, the DCI includes that the frequency spectrum is accounted for Use information;Or, DCI is sent to a UE by PDCCH, the DCI is used to indicate the Spectrum Occupancy Information in thing The running time-frequency resource position taken on reason DSCH Downlink Shared Channel PDSCH, and the frequency is sent to a UE by the PDSCH Spectrum occupied information;Or, the frequency spectrum is sent to one group of UE including a UE by Physical Multicast Channel PMCH and is taken Information;Or, the Spectrum Occupancy Information is sent to one group of UE including a UE by Physical Broadcast Channel PBCH.
35. base stations according to any one of claim 31 to 33, it is characterised in that the transmitting element specifically for The Spectrum Occupancy Information, the frequency spectrum are sent to a UE in arbitrary subframe in N subframes to (N+k-1) subframe Occupied information is used to indicate the uplink frequency spectrum resource described in (N+k) subframe shared by least one subregion that wherein N and k to be Positive integer.
36. base stations according to any one of claim 31 to 33, it is characterised in that the transmitting element specifically for The Spectrum Occupancy Information is sent including one group of UE of a UE, wherein, one group of UE is UE places point Whole UE in area, or one group of UE is the whole UE in the multiple adjacent sectors for include UE places subregion, Or whole UE that one group of UE is whole subregions, or one group of UE is having in the subregion of a UE places The UE of D2D abilities, or one group of UE is with D2D energy in the multiple adjacent sectors for include UE places subregion The UE of power, or the UE with D2D abilities that one group of UE is whole subregions, or the institute that one group of UE is aligned for wave beam The whole UE in the angle at UE places are stated, or one group of UE is in the angle at the UE places of wave beam alignment The UE with D2D abilities.
37. base stations according to any one of claim 31 to 33, it is characterised in that the base station also includes dividing single Unit, for, before the determination Spectrum Occupancy Information, the cell covered by the base station being divided into multiple subregions.
38. base stations according to claim 37, it is characterised in that the division unit is specifically for according to the base station The cell covered by the base station is divided into multiple fanned partitions by the angle of radiation of antenna;Or, according to covering for the base station The cell covered by the base station is divided into multiple annular subregions by lid scope.
39. base stations according to claim 37, it is characterised in that the division unit is specifically for the base station is covered The cell of lid is evenly divided into the plurality of subregion.
CN201210220171.6A 2012-06-29 2012-06-29 D2D communication method, user equipment and base station CN103517276B (en)

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