CN105898755A - Interference coordination method and device in non-authorized frequency spectrum - Google Patents
Interference coordination method and device in non-authorized frequency spectrum Download PDFInfo
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- CN105898755A CN105898755A CN201410204005.6A CN201410204005A CN105898755A CN 105898755 A CN105898755 A CN 105898755A CN 201410204005 A CN201410204005 A CN 201410204005A CN 105898755 A CN105898755 A CN 105898755A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention provides an interference coordination method and device in the non-authorized frequency spectrum. Aimed at solving the problem that a traditional RPT based D2D resource distribution mechanism cannot adapt to emergent interference in the non-authorized frequency spectrum, D2D sending UE sends signaling configuration RPT, a substitute sending space is configured for the RPT in an explicit or implicit manner, and if an RPT sending space is not suitable for transmitting target D2D data, the D2D sending UE sends the target D2D data in the substitute sending space. According to the invention, a DFS scheme is compatible, the transmission robustness of a traditional RPT scheme is ensured, conference conclusion related to D2D communication is compatible, and the compatibility is high.
Description
Technical field
The present invention relates to the scheduling in D2D (Device to Device, device is to device) communication
Scheme, particularly relates to exist based on LTE (Long Term Evolution, Long Term Evolution) D2D
Scheduling scheme in unlicensed spectrum.
Background technology
Traditional 3GPP (3rd Generation Partner Project, third generation affiliate
Project) in LTE system, data transmission occurs base station and UE (User Equipment, user
Equipment) between.In 3GPP R12, D2D communication by project verification and is discussed, the essence of D2D
Feature is to allow the data transmission between UE.For FDD (Frequency Division Duplex,
FDD) and TDD (Time Division Duplex, time division duplex) system for, 3GPP
In RAN1 (Radio Access Network Working Group1, wireless access network the first work
Make group) reach in #73 meeting it is concluded that the UE in D2D system does not allow to receive and dispatch simultaneously.
Further, the interference communicated D2D in order to avoid downlink data, UE takies traditional up money
The sub-frame of uplink of the source i.e. upstream band of FDD or TDD is for D2D communication (TDD descending sub frame
Need discussed further).In RAN1#76bis meeting, pass through as drawn a conclusion:
-for the UE in MPS process, base station utilizes PDCCH (Physical Downlink
Control Channel) or EPDCCH (Enhanced PDCCH, the PDCCH of enhancing) give
D2D send UE distribution be used for sending SA (Scheduling Assignment, scheduling configuration) and
The resource of physical layer data.
-base station is configured by SIB (System Information Block, system information block)
For receiving or send the candidate resource pond of SA.
-base station is explicit or implicit expression configures one or more RPT (Resource Patterns
For Transmission, sends resource map), a RPT is mapped to multiple for the physics number of plies
Space is sent according to the D2D of transmission.RPT is the explicit or instruction of implicit expression by SA.
In traditional 3GPP LTE system, data transmission can only occur on mandate frequency spectrum, but
Along with being increased dramatically of portfolio, especially in some urban areas, frequency spectrum is authorized to be likely difficult to meet
The demand of portfolio.62 plenary sessions of 3GPP RAN discuss a new research topic, the most non-
Authorizing the research (RP-132085) of frequency spectrum, main purpose is that research and utilization is in unlicensed spectrum
The dependent (Non-standalone) of LTE is disposed, and so-called dependent refers in unlicensed spectrum
On communication want and authorize the Serving cell on frequency spectrum to be associated.One intuitively method be as far as possible
Reuse the concept of CA (Carrier Aggregation, carrier aggregation) in existing system, i.e.
It is deployed in and authorizes the Serving cell on frequency spectrum as Pcell (Primary Cell, main plot), portion
Administration's Serving cell in unlicensed spectrum is as Scell (Secondary Cell, secondary cell).
Described CA includes traditional TDD CA, FDD (Frequency Division Duplex, frequency division
Duplex) CA, and the FDD-TDD CA that 3GPP R12 introduces.For unlicensed spectrum, it is considered to
To the uncontrollable/prediction of its interference level, UE may be configured more carrier wave and use DFS simultaneously
The mode of (Dynamical Frequency Selection, dynamic spectrum selects) is (given
Subframe) from optional carrier wave, select partial carrier wave for transmitting data.
Inventor is found by research, when D2D communication occurs in unlicensed spectrum, and need
Problem to be solved is incompatible between the configuration mode of RPT and DFS technology.In 3GPP R12,
Base station utilizes RPT configuration D2D Resource Block to reduce the signaling consumption of D2D resource distribution, described D2D
Resource Block is distributed over multiple subframes, and wherein part subframe may be not suitable for by bursty interference
Transmit for D2D signal.D2D thing is not transmitted when part D2D in a RPT sends space
During reason layer data, how to guarantee that the transmission robustness of D2D physical layer data is that needs solve
Problem.
For the problems referred to above, the invention discloses a kind of interference synergic method in unlicensed spectrum and
Device.
Summary of the invention
The invention discloses a kind of method in UE, it is characterised in that comprise the steps:
Step A. sends the first signaling, and the first signaling instruction the oneth RPT, a RPT includes N
The individual first kind sends space
Step B. N1 the first kind in a RPT sends and sends D2D signal in space,
Remaining N-N1 first kind sends in space and keeps zero transmit power
Step C. sends D2D signal in N2 Equations of The Second Kind sends space
Wherein, described N number of first kind send spatial distribution in N number of different subframe, an institute
Stating the corresponding subframe in transmission space, it is orthogonal that Equations of The Second Kind sends space and first kind transmission space
, N is greater than the positive integer of 1, and rare 1 first kind that N number of first kind sends in space is sent out
Sending space to include the frequency domain resource in unlicensed spectrum, N1 is no more than the nonnegative integer of N, N2
It is no more than the nonnegative integer of N-N1.
As an embodiment, the first signaling is the information bit in physical layer signaling.As another
Individual embodiment, the first signaling is SA.As an embodiment, N2 is equal to N-N1.Described orthogonal
Refer to that two transmission spaces are in different subframes or different carrier waves.As an embodiment,
N number of first kind in oneth RPT sends spatial distribution in the same load being deployed in unlicensed spectrum
On ripple.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
Step A1. sends the second signaling and indicates K Equations of The Second Kind to send space
Wherein, described N2 Equations of The Second Kind sends space is the son that described K Equations of The Second Kind sends space
Collection, K is no more than the positive integer of N.
As an embodiment, K is equal to N2, and stating N2 Equations of The Second Kind and sending space is described K
Equations of The Second Kind sends space.As another embodiment, K is equal to N.
As an embodiment, the subframe that described K Equations of The Second Kind sends space corresponding in time domain is
By a RPT implicit expression instruction, described K Equations of The Second Kind sends space and is deployed in same on frequency domain
Individual given carrier wave, described given carrier wave is indicated by the second signaling.As an embodiment, the
Two signalings are the information bits in a physical layer signaling, and the first signaling belongs to same physical layer
Signaling.As another embodiment, the second signaling be RRC (Radio Resource Control,
Wireless heterogeneous networks) layer signaling.
Concrete, according to aforementioned aspect of the present invention, it is characterised in that the second signaling includes K
Sub-signaling, the most every sub-signaling indicates an Equations of The Second Kind to send space, and K is equal to N2, described K
Individual sub-signaling sends K subframe respectively, and described sub-signaling is one group of information bit or a spy
Levy sequence.
As an embodiment, described characteristic sequence is ZC (Zadoff Chu) sequence.As again
One embodiment, described characteristic sequence is pseudo-random sequence.
Concrete, according to an aspect of the present invention, it is characterised in that described N2 Equations of The Second Kind
Sending space is the subset that K Equations of The Second Kind sends space, described K Equations of The Second Kind transmission space be by
Oneth RPT implicit expression instruction, described K is no more than the positive integer of N.
As an embodiment, described K Equations of The Second Kind sends space and is deployed in a RPT in time domain
Afterwards nearest and be not configured as the first kind and send in K the subframe in space, described K individual the
Two classes send space and are deployed in same given carrier wave on frequency domain, and described given carrier wave is the first letter
The transmission carrier wave of order.
Concrete, according to an aspect of the present invention, it is characterised in that described step B also includes
One below:
Step B1. detects N number of first kind and sends the interference noise in space, wherein N-N1 the
One class sends the interference noise in space and exceedes specific threshold, and N1 the first kind sends doing in space
Disturb noise less than specific threshold
Step B2. receives downlink signaling, and the instruction of described downlink signaling is at described substitute N-N1 individual the
One class sends in space and keeps zero transmit power
Wherein, described specific threshold is predefined or configurable.
Above-mentioned steps B1 is suitable for D2D transmission UE and is in outside MPS process and is in MPS process
Scene, its essence be D2D send UE determine voluntarily the first kind send space can be used for D2D
Signal transmits；Above-mentioned steps B2 is suitable for D2D and sends the scene that UE is in MPS process, its
Matter is that the Serving cell of D2D transmission UE determines that can the first kind send space and be used for D2D signal biography
Defeated.
Concrete, according to an aspect of the present invention, it is characterised in that the transmission of the first signaling carries
Ripple is deployed in mandate frequency spectrum.
Above-mentioned aspect guarantees that the transmission of the first signaling will not be because of the bursty interference of unlicensed spectrum
Terminate.
Concrete, according to an aspect of the present invention, it is characterised in that Equations of The Second Kind sends space and exists
Being positioned at mandate frequency spectrum on frequency domain, K is equal to N2.
Above-mentioned aspect ensure that Equations of The Second Kind transmission space will not be because of the bursty interference of unlicensed spectrum
And it is unavailable.
Concrete, according to an aspect of the present invention, it is characterised in that N number of first kind sends sky
All including the frequency domain resource in unlicensed spectrum between, described K is equal to N.
As an embodiment, the second signaling instruction the 2nd RPT.
Concrete, according to aforementioned aspect of the present invention, it is characterised in that described Equations of The Second Kind sends sky
Between and the described first kind to send space be one to one, described Equations of The Second Kind sends space and corresponding
The described first kind sends and is spatially located at different carrier waves.
As an embodiment, it is corresponding described that described Equations of The Second Kind sends the subframe belonging to space
It is same subframe that one class sends the subframe belonging to space.As an embodiment, described Equations of The Second Kind
Send spatial portion and be deployed on unlicensed spectrum.
The invention discloses a kind of method in UE, it is characterised in that comprise the steps:
Step A. receives the first signaling, and the first signaling instruction the oneth RPT, a RPT includes N
The individual first kind sends space
Step B. and receive D2D during only N1 first kind in a RPT sends space
Signal；Or N1 the first kind in a RPT sends and receives D2D signal in space,
Remaining N-N1 first kind sends in space and does not detects D2D signal
Step C. receives D2D signal in N2 Equations of The Second Kind sends space
Wherein, described N number of first kind send spatial distribution in N number of different subframe, an institute
Stating the corresponding subframe in transmission space, it is orthogonal that Equations of The Second Kind sends space and first kind transmission space
, N is greater than the positive integer of 1, and rare 1 first kind that N number of first kind sends in space is sent out
Sending space to include the frequency domain resource in unlicensed spectrum, N1 is no more than the nonnegative integer of N, N2
It is no more than the nonnegative integer of N-N1.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
Step A1. receives the second signaling and determines that K Equations of The Second Kind sends space
Wherein, described N2 Equations of The Second Kind sends space is the son that described K Equations of The Second Kind sends space
Collection, K is no more than the positive integer of N.
Concrete, according to aforementioned aspect of the present invention, it is characterised in that the second signaling includes K
Sub-signaling, the most every sub-signaling indicates an Equations of The Second Kind to send space, and K is equal to N2, described K
Individual sub-signaling sends K subframe respectively, and described sub-signaling is one group of information bit or a spy
Levy sequence.
Concrete, according to an aspect of the present invention, it is characterised in that described N2 Equations of The Second Kind
Sending space is the subset that K Equations of The Second Kind sends space, described K Equations of The Second Kind transmission space be by
Oneth RPT implicit expression instruction, described K is no more than the positive integer of N.
Concrete, according to an aspect of the present invention, it is characterised in that the transmission of the first signaling carries
Ripple is deployed in mandate frequency spectrum.
Concrete, according to an aspect of the present invention, it is characterised in that Equations of The Second Kind sends space and exists
Being positioned at mandate frequency spectrum on frequency domain, K is equal to N2.
Above-mentioned aspect ensure that Equations of The Second Kind transmission space will not be because of the bursty interference of unlicensed spectrum
And it is unavailable.
Concrete, according to an aspect of the present invention, it is characterised in that N number of first kind sends sky
All including the frequency domain resource in unlicensed spectrum between, described K is equal to N.
Concrete, according to aforementioned aspect of the present invention, it is characterised in that described Equations of The Second Kind sends sky
Between and the described first kind to send space be one to one, described Equations of The Second Kind sends space and corresponding
The described first kind sends and is spatially located at different carrier waves.
As an embodiment, it is corresponding described that described Equations of The Second Kind sends the subframe belonging to space
One class sends the d subframe after the subframe belonging to space, and described d is positive integer.Described d energy
Enough meet the described UE detection first kind sends in space whether transmit D2D signal, if it is determined that
Transmitting D2D signal, the most described UE does not receive D2D letter in corresponding Equations of The Second Kind sends space
Number, if it is determined that not transmitting D2D signal, the most described UE sends space at corresponding Equations of The Second Kind
Middle reception D2D signal.
The invention discloses a kind of subscriber equipment, it is characterised in that this equipment includes:
First module: for sending the first signaling, the first signaling instruction the oneth RPT, a RPT
Space is sent including N number of first kind
Second module: send for N1 the first kind in a RPT and send D2D in space
Signal, sends in space in remaining N-N1 first kind and keeps zero transmit power
Three module: send D2D signal in sending space at N2 Equations of The Second Kind
Wherein, described N number of first kind send spatial distribution in N number of different subframe, an institute
Stating the corresponding subframe in transmission space, it is orthogonal that Equations of The Second Kind sends space and first kind transmission space
, N is greater than the positive integer of 1, and rare 1 first kind that N number of first kind sends in space is sent out
Sending space to include the frequency domain resource in unlicensed spectrum, N1 is no more than the nonnegative integer of N, N2
It is no more than the nonnegative integer of N-N1.
As an embodiment, the said equipment is characterised by, described N2 Equations of The Second Kind sends sky
Between be K Equations of The Second Kind subset of sending space.It is by the first mould that described K Equations of The Second Kind sends space
The second signaling instruction that block sends, or by a RPT implicit expression instruction.
The invention discloses a kind of subscriber equipment, it is characterised in that this equipment includes:
First module: for receiving the first signaling, the first signaling instruction the oneth RPT, a RPT
Space is sent including N number of first kind
Second module: for and only the transmission of N1 first kind in RPT space connects
Receive D2D signal；Or N1 the first kind in a RPT sends and receives D2D letter in space
Number, send in space in remaining N-N1 first kind and do not detect D2D signal
Three module: receive D2D signal in sending space at N2 Equations of The Second Kind
Wherein, described N number of first kind send spatial distribution in N number of different subframe, an institute
Stating the corresponding subframe in transmission space, it is orthogonal that Equations of The Second Kind sends space and first kind transmission space
, N is greater than the positive integer of 1, and rare 1 first kind that N number of first kind sends in space is sent out
Sending space to include the frequency domain resource in unlicensed spectrum, N1 is no more than the nonnegative integer of N, N2
It is no more than the nonnegative integer of N-N1.
As an embodiment, the said equipment is characterised by, described N2 Equations of The Second Kind sends sky
Between be K Equations of The Second Kind subset of sending space.It is by the first mould that described K Equations of The Second Kind sends space
The second signaling instruction that block sends, or by a RPT implicit expression instruction.
In unlicensed spectrum, burst is not adapted to for traditional D2D distribution mechanism based on RPT
Disturb this problem, the invention discloses a kind of interference synergic method in unlicensed spectrum and dress
Putting, D2D sends UE and sends signal deployment RPT, the most explicit or implicit expression for described RPT
Configuration substitute sends space, if the transmission space of described RPT is not suitable for transmission objectives D2D data,
Described D2D sends UE and spatially sends described target D2D data in substitute transmission.The present invention's
Scheme compatibility DFS scheme, ensure that the transmission robustness of tradition RPT scheme simultaneously.Additionally, this
The meeting conclusion communicated about D2D that invention is compatible, possesses good compatibility.
Accompanying drawing explanation
The detailed description that non-limiting example is made made with reference to the following drawings by reading,
The other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the flow chart that D2D according to an embodiment of the invention communicates；
Fig. 2 shows D2D scheduling of resource schematic diagram according to an embodiment of the invention；
Fig. 3 shows D2D scheduling of resource schematic diagram according to still another embodiment of the invention；
Fig. 4 shows D2D scheduling of resource schematic diagram according to still a further embodiment；
Fig. 5 shows that D2D according to an embodiment of the invention sends the processing means structure in UE
Block diagram；
Fig. 6 shows that D2D according to an embodiment of the invention receives the processing means structure in UE
Block diagram；
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail, needs explanation
It is that, in the case of not conflicting, the feature in embodiments herein and embodiment can be the most mutual
Combination.
Embodiment 1
Embodiment 1 illustrates the flow chart of D2D communication, as shown in Figure 1.In accompanying drawing 1, UE U1
Being that D2D sends UE, the D2D reception UE of correspondence includes UE U2.
ForUE U1, in step s 11, sending the first signaling, the first signaling indicates a RPT,
Oneth RPT includes that N number of first kind sends space；In step s 12, the N1 in a RPT
The individual first kind sends and sends D2D signal in space, sends in space in remaining N-N1 first kind
Keep zero transmit power；In step s 13, in N2 Equations of The Second Kind sends space, D2D is sent
Signal.
For UE U2, in the step s 21, receiving the first signaling, the first signaling indicates a RPT,
Oneth RPT includes that N number of first kind sends space；In step S22, and only at a RPT
In N1 first kind send and space receives D2D signal (i.e. send in remaining of a RPT
Space is not detected D2D signal)；Or N1 the first kind in a RPT sends in space
Receive D2D signal, send in space in remaining N-N1 first kind and do not detect D2D signal (i.e.
Send in described N-N1 the first kind and space is detected D2D signal)；In step S23, at N2
Individual Equations of The Second Kind sends and receives D2D signal in space.
In embodiment 1, described N number of first kind send spatial distribution in N number of different subframe,
One corresponding subframe in described transmission space, Equations of The Second Kind sends space and first kind transmission space and is
Orthogonal, N is greater than the positive integer of 1, and N number of first kind sends rare 1 first in space
Class sends space and includes the frequency domain resource in unlicensed spectrum, and N1 is no more than the nonnegative integer of N,
N2 is equal to N-N1.
As the sub-embodiment 1 of embodiment 1, UE U1 sends the second signaling in step s 11 and refers to
Show that described N2 Equations of The Second Kind sends space；UE U2 receives the second signaling in the step s 21 and determines institute
State N2 Equations of The Second Kind and send space.
In the sub-embodiment 1 of embodiment 1, the second signaling includes N2 sub-signaling, the most each
Sub-signaling indicates an Equations of The Second Kind to send space, and described N2 sub-signaling is sent out N2 subframe respectively
Sending, described sub-signaling is one group of information bit or a characteristic sequence.
As the sub-embodiment 2 of embodiment 1, UE U1 performs one below in step s 12:
-. detecting N number of first kind and send the interference noise in space, wherein N-N1 the first kind is sent out
Sending the interference noise in space to exceed specific threshold, N1 the first kind sends the interference noise in space
Less than specific threshold
-. receiving downlink signaling, the instruction of described downlink signaling is sent out in N-N1 the first kind of described substitute
Send and space keeps zero transmit power
In the sub-embodiment 2 of embodiment 1, described specific threshold is predefined or configurable
's.
As the sub-embodiment 3 of embodiment 1, the transmission carrier wave of the first signaling is deployed in mandate frequency spectrum,
Equations of The Second Kind sends spatial portion and is deployed on the transmission carrier wave of the first signaling.
Embodiment 2
Embodiment 2 illustrates D2D scheduling of resource schematic diagram, as shown in Figure 2.In accompanying drawing 2, tiltedly
The lattice of line mark is the transmission subframe of the first signaling, and the lattice of backslash mark is the second letter
The transmission subframe of order, the lattice of mark D1-D4 is that the first kind sends space, mark T3-T4's
Lattice is that Equations of The Second Kind sends space, and the lattice of thick line mark is for transmitting sending out of D2D signal
Send space.
UE is sent for D2D, first sends the first signaling (as indicated by arrows f1) at first carrier
Indicate respectively that a RPT and N2 Equations of The Second Kind is sent out with the second signaling (such as arrow F2, shown in F3)
Send space；Then (such as D1, shown in D2) during N1 first kind in a RPT sends space
Send D2D signal, guarantor in remaining N-N1 first kind sends space (such as D3, shown in D4)
Hold zero transmit power；Then (such as T3, shown in T4) in described N2 Equations of The Second Kind sends space
Send D2D signal.
UE is received for D2D, first receives the first signaling (as indicated by arrows f1) at first carrier
Determine that a RPT and N2 Equations of The Second Kind is sent out respectively with the second signaling (such as arrow F2, shown in F3)
Send space；Then and only N1 first kind in a RPT send space (such as D1, D2
Shown in) middle reception D2D signal；Then space is sent (such as T3, T4 at described N2 Equations of The Second Kind
Shown in) middle reception D2D signal.
In embodiment 2, N is 4, and a RPT includes that N number of first kind sends space, described N
The individual first kind send spatial distribution in the N number of different subframe of the second carrier wave (such as D1, D2, D3,
Shown in D4), a corresponding subframe in described transmission space, the second carrier wave is deployed in unauthorized frequency
Spectrum, N1 is 2, and N2 is 2.Described N2 Equations of The Second Kind sends spatial distribution at the 3rd carrier wave not
With in subframe (such as T3, shown in T4), the 3rd carrier wave is deployed in unlicensed spectrum, described N2
It is the subset that described N number of Equations of The Second Kind sends space that Equations of The Second Kind sends space.
In embodiment 2, the second signaling includes that N2 sub-signaling, the most every sub-signaling indicate one
Equations of The Second Kind sends space, and for the transmission of D2D signal, (the corresponding first kind sends space and does not transmit D2D
Signal), described N2 sub-signaling sends N2 subframe respectively, and described sub-signaling is one group of letter
Breath bit or a characteristic sequence.
In embodiment 2, D2D receives UE and sends the first signaling and second signaling of UE according to D2D
Determine the transmission space of D2D signal, it is not necessary to judge the transmission space of D2D signal voluntarily, possess
Relatively low complexity.But the second signaling additionally occupies resource overhead.
As the sub-embodiment 1 of embodiment 2, first carrier is deployed in mandate frequency spectrum.
As the sub-embodiment 2 of embodiment 2, described sub-signaling is a characteristic sequence, described son
The appearance instruction D2D signal of signaling sends in space at corresponding Equations of The Second Kind and transmits (and not accordingly
The first kind send in space transmit).Described sub-signaling sends reflecting of space to corresponding Equations of The Second Kind
Penetrate and mapping that described sub-signaling sends space to the corresponding first kind is pre-determining or can
Preparation.
Embodiment 3
Embodiment 3 illustrates another D2D scheduling of resource schematic diagram, as shown in Figure 3.Accompanying drawing 3
In, the lattice of oblique line mark is the transmission subframe of the first signaling.The lattice of mark D1-D4 is
The first kind sends space, and the lattice of mark T1-T4 is that Equations of The Second Kind sends space, thick line mark
Lattice is the transmission space for transmitting D2D signal.
UE is sent for D2D, first sends the first signaling (as shown in arrow F10) at first carrier
Indicate a RPT；During then N1 first kind in a RPT sends space (such as D1,
Shown in D2) send D2D signal, send space (such as D3, D4 institute in remaining N-N1 first kind
Show) middle holding zero transmit power；Then in described N2 Equations of The Second Kind sends space (such as T3,
Shown in T4) send D2D signal.
UE is received for D2D, first receives the first signaling (as shown in arrow F10) at first carrier
Determine a RPT；Then N1 the first kind in a RPT sends space (such as D1, D2
Shown in) middle reception D2D signal, send space (such as D3, D4 institute in remaining N-N1 first kind
Show) in do not detect D2D signal；Then described N2 Equations of The Second Kind send space (such as T3,
Shown in T4) middle reception D2D signal.
In embodiment 3, N is 4, and a RPT includes that N number of first kind sends space, described N
The individual first kind send spatial distribution in the N number of different subframe of the second carrier wave (such as D1, D2, D3,
Shown in D4), a corresponding subframe in described transmission space, the second carrier wave is deployed in unauthorized frequency
Spectrum, N1 is 2, and N2 is 2.It is that N number of Equations of The Second Kind sends sky that described N2 Equations of The Second Kind sends space
Between subset, described N number of Equations of The Second Kind send spatial distribution in the different subframes of first carrier, institute
Stating N number of Equations of The Second Kind and sending space particular location on first carrier is by a RPT implicit expression instruction
(such as T1, shown in T2, T3, T4).
In embodiment 3, described N number of Equations of The Second Kind sends space and described N number of first kind sends space
It is-D1 correspondence T1, D2 correspondence T2, D3 correspondence T3, D4 correspondence T4 one to one.The
If a class sends space and do not transmits D2D signal, described D2D signal sends at corresponding Equations of The Second Kind
Space propagation.
In embodiment 3, D2D receives UE needs to judge whether transmit in first kind transmission space voluntarily
D2D signal-such as according to DMRS (the Demodulation Reference of D2D signal
Signal, demodulated reference signal), possess higher complexity.But compare embodiment 2 and save
The resource that second signaling takies.
As the sub-embodiment 1 of embodiment 3, described D2D sends UE detection and sends space D1-D4
In interference noise, wherein send space D3, the interference noise in D4 exceedes specific threshold, send out
Sending space D1, the interference noise in D2 is less than specific threshold, and described specific threshold is predefined
Or configurable.
As the sub-embodiment 2 of embodiment 3, described D2D sends UE and receives downlink signaling, described
Downlink signaling instruction is sending space D3, keeps zero transmit power in D4.
As the sub-embodiment 3 of embodiment 3, described Equations of The Second Kind sends space and corresponding described first
Class sends space and sends in same subframe.
Embodiment 4
Embodiment 4 illustrates another D2D scheduling of resource schematic diagram, as shown in Figure 4.Accompanying drawing
In 4, the lattice of oblique line mark is the transmission subframe of the first signaling, the lattice of backslash mark
It is the transmission subframe of the second signaling, the first signaling and the second signaling at same sub-frame transmission (as handed over
Shown in the lattice of cross wires mark).The lattice of mark D1-D4 is that the first kind sends space, mark
The lattice knowing T1-T4 is that Equations of The Second Kind sends space, and the lattice of thick line mark is for transmitting D2D
The transmission space of signal.
UE is sent for D2D, first sends the first signaling (such as arrow F100 institute at first carrier
Show) and the second signaling (as shown in arrow F101) indicate respectively a RPT and N number of Equations of The Second Kind
Send space (such as T1, shown in T2, T3, T4)；Then the N1 in a RPT first
Class sends in space (such as D1, shown in D2) and sends D2D signal, in remaining N-N1 first kind
Send in space (such as D3, shown in D4) and keep zero transmit power；Then at described N2 second
Class sends in space (such as T3, shown in T4) and sends D2D signal.
UE is received for D2D, first receives the first signaling (such as arrow F100 institute at first carrier
Show) and the second signaling (as shown in arrow F101) determine a RPT and N number of Equations of The Second Kind respectively
Send space (such as T1, shown in T2, T3, T4)；Then the N1 in a RPT first
Class sends in space (such as D1, shown in D2) and receives D2D signal, in remaining N-N1 first kind
Send in space (such as D3, shown in D4) and do not detect D2D signal；Then at described N2 the
Two classes send in spaces (such as T3, shown in T4) and receive D2D signal.
In embodiment 4, N is 4, and a RPT includes that N number of first kind sends space, described N
The individual first kind send spatial distribution in the N number of different subframe of the second carrier wave (such as D1, D2, D3,
Shown in D4), a corresponding subframe in described transmission space, the second carrier wave is deployed in unauthorized frequency
Spectrum, N1 is 2, and N2 is 2.Described N number of Equations of The Second Kind sends the spatial distribution difference at the 3rd carrier wave
(such as T1, shown in T2, T3, T4) in subframe, the 3rd carrier wave is deployed in unlicensed spectrum.
In embodiment 4, described Equations of The Second Kind sends space and the described first kind and sends space is one a pair
-D1 correspondence T1 answered, D2 correspondence T2, D3 correspondence T3, D4 correspondence T4, the first kind sends
If D2D signal is not transmitted in space, described D2D signal sends space propagation at corresponding Equations of The Second Kind.
As the sub-embodiment 1 of embodiment 4, described D2D sends UE detection and sends in the D1-4 of space
Interference noise, wherein send space D3, the interference noise in D4 exceedes specific threshold, send
Space D1, the interference noise in D2 is less than specific threshold, and described specific threshold is predefined
Or it is configurable.
As the sub-embodiment 2 of embodiment 4, described D2D sends UE and receives downlink signaling, described
Downlink signaling instruction is sending space D3, keeps zero transmit power in D4.
As the sub-embodiment 3 of embodiment 4, it is its correspondence that Equations of The Second Kind sends the subframe belonging to space
The first kind sends the subframe after the subframe belonging to space, i.e. D2D receives UE and need not examine simultaneously
Survey the second carrier wave and the 3rd carrier wave, reduce the radio frequency requirement that D2D is received UE.
Embodiment 5
Embodiment 5 illustrates D2D and sends the processing means structured flowchart in UE, as shown in Figure 5.
In accompanying drawing 5, processing means 200 is by sending module 201, sending module 202 and sending module 203
Composition.
Sending module 201 is for sending the first signaling, and the first signaling indicates a RPT, a RPT
Space is sent including N number of first kind；Sending module 202 is for the N1 in a RPT first
Class sends and sends D2D signal in space, sends in remaining N-N1 first kind and keeps zero in space
Transmit power；Sending module 203 sends D2D signal in sending space at N2 Equations of The Second Kind
In embodiment 5, described N number of first kind send spatial distribution in N number of different subframe,
One corresponding subframe in described transmission space, Equations of The Second Kind sends space and first kind transmission space and is
Orthogonal, N is greater than the positive integer of 1, and N number of first kind sends rare 1 first in space
Class sends space and includes the frequency domain resource in unlicensed spectrum, and N1 is no more than the nonnegative integer of N,
N2 is no more than the nonnegative integer of N-N1.It is K Equations of The Second Kind that described N2 Equations of The Second Kind sends space
Send the subset in space.It is the second letter sent by the first module that described K Equations of The Second Kind sends space
Order instruction, or by a RPT implicit expression instruction.
As the sub-embodiment 1 of embodiment 5, Equations of The Second Kind sends space and is positioned at the first letter on frequency domain
The transmission carrier wave of order, described transmission carrier wave is deployed in mandate frequency spectrum.
Embodiment 6
Embodiment 6 is the processing means structured flowchart that D2D receives in UE, as shown in Figure 6.Attached
In Fig. 6, processing means 300 is by receiver module 301, receiver module 302 and receiver module 303
Composition.
Receiver module 301 is for receiving the first signaling, and the first signaling indicates a RPT, a RPT
Space is sent including N number of first kind；Receiver module 302 for and the only N1 in a RPT
The individual first kind sends and receives D2D signal in space；Or N1 the first kind in a RPT
Send and space receives D2D signal, send in space in remaining N-N1 first kind and do not detect
D2D signal；Receiver module 303 receives D2D signal in sending space at N2 Equations of The Second Kind.
In embodiment 6, described N number of first kind send spatial distribution in N number of different subframe,
One corresponding subframe in described transmission space, Equations of The Second Kind sends space and first kind transmission space and is
Orthogonal, N is greater than the positive integer of 1, and N number of first kind sends rare 1 first in space
Class sends space and includes the frequency domain resource in unlicensed spectrum, and N1 is no more than the nonnegative integer of N,
N2 is no more than the nonnegative integer of N-N1.It is K Equations of The Second Kind that described N2 Equations of The Second Kind sends space
Send the subset in space.It is the second letter sent by the first module that described K Equations of The Second Kind sends space
Order instruction, or by a RPT implicit expression instruction.
As the sub-embodiment 1 of embodiment 6, described N number of first kind sends in space and is all deployed in
In unlicensed spectrum, described K is equal to N.
One of ordinary skill in the art will appreciate that all or part of step in said method is permissible
Instructing related hardware by program to complete, described program can be stored in computer-readable storage medium
In matter, such as read only memory, hard disk or CD etc..Optionally, above-described embodiment whole or
Part steps can also use one or more integrated circuit to realize.Accordingly, above-mentioned enforcement
Each modular unit in example, can use example, in hardware to realize, it is also possible to by software function module
Form realizes, and the application is not limited to the combination of the software and hardware of any particular form.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the present invention's
Protection domain.All within the spirit and principles in the present invention, any amendment made, equivalent,
Improve, should be included within the scope of the present invention.
Claims (21)
1. the method in a UE, it is characterised in that comprise the steps:
Step A. sends the first signaling, and the first signaling instruction the oneth RPT, a RPT includes N
The individual first kind sends space
Step B. N1 the first kind in a RPT sends and sends D2D signal in space,
Remaining N-N1 first kind sends in space and keeps zero transmit power
Step C. sends D2D signal in N2 Equations of The Second Kind sends space
Wherein, described N number of first kind send spatial distribution in N number of different subframe, an institute
Stating the corresponding subframe in transmission space, it is orthogonal that Equations of The Second Kind sends space and first kind transmission space
, N is greater than the positive integer of 1, and rare 1 first kind that N number of first kind sends in space is sent out
Sending space to include the frequency domain resource in unlicensed spectrum, N1 is no more than the nonnegative integer of N, N2
It is no more than the nonnegative integer of N-N1.
Method the most according to claim 1, it is characterised in that described step A also includes
Following steps:
Step A1. sends the second signaling and indicates K Equations of The Second Kind to send space
Wherein, described N2 Equations of The Second Kind sends space is the son that described K Equations of The Second Kind sends space
Collection, K is no more than the positive integer of N.
Method the most according to claim 1, it is characterised in that described N2 Equations of The Second Kind is sent out
Sending space is the subset that K Equations of The Second Kind sends space, and described K Equations of The Second Kind transmission space is by the
One RPT implicit expression instruction, described K is no more than the positive integer of N.
Method the most according to claim 1, it is characterised in that described step B also includes
One below:
Step B1. detects N number of first kind and sends the interference noise in space, wherein N-N1 the
One class sends the interference noise in space and exceedes specific threshold, and N1 the first kind sends doing in space
Disturb noise less than specific threshold
Step B2. receives downlink signaling, and the instruction of described downlink signaling is at described substitute N-N1 individual the
One class sends in space and keeps zero transmit power
Wherein, described specific threshold is predefined or configurable.
Method the most according to claim 1, it is characterised in that the transmission of the first signaling carries
Ripple is deployed in mandate frequency spectrum.
Method the most according to claim 2, it is characterised in that the second signaling includes K
Sub-signaling, the most every sub-signaling indicates an Equations of The Second Kind to send space, and K is equal to N2, described K
Individual sub-signaling sends K subframe respectively, and described sub-signaling is one group of information bit or a spy
Levy sequence.
7. the method according to claim 3, described in 5, it is characterised in that Equations of The Second Kind sends space
Being positioned at mandate frequency spectrum on frequency domain, K is equal to N2.
8. the method according to claim 2, described in 3, it is characterised in that N number of first kind sends
All including the frequency domain resource in unlicensed spectrum in space, described K is equal to N.
Method the most according to claim 8, it is characterised in that described Equations of The Second Kind sends sky
Between and the described first kind to send space be one to one, described Equations of The Second Kind sends space and corresponding
The described first kind sends and is spatially located at different carrier waves.
10. the method in a UE, it is characterised in that comprise the steps:
Step A. receives the first signaling, and the first signaling instruction the oneth RPT, a RPT includes N
The individual first kind sends space
Step B. and receive D2D during only N1 first kind in a RPT sends space
Signal；Or N1 the first kind in a RPT sends and receives D2D signal in space,
Remaining N-N1 first kind sends in space and does not detects D2D signal
Step C. receives D2D signal in N2 Equations of The Second Kind sends space
Wherein, described N number of first kind send spatial distribution in N number of different subframe, an institute
Stating the corresponding subframe in transmission space, it is orthogonal that Equations of The Second Kind sends space and first kind transmission space
, N is greater than the positive integer of 1, and rare 1 first kind that N number of first kind sends in space is sent out
Sending space to include the frequency domain resource in unlicensed spectrum, N1 is no more than the nonnegative integer of N, N2
It is no more than the nonnegative integer of N-N1.
11. methods according to claim 10, it is characterised in that described step A is also wrapped
Include following steps:
Step A1. receives the second signaling and determines that K Equations of The Second Kind sends space
Wherein, described N2 Equations of The Second Kind sends space is the son that described K Equations of The Second Kind sends space
Collection, K is no more than the positive integer of N.
12. methods according to claim 10, it is characterised in that described N2 Equations of The Second Kind
Sending space is the subset that K Equations of The Second Kind sends space, described K Equations of The Second Kind transmission space be by
Oneth RPT implicit expression instruction, described K is no more than the positive integer of N.
13. methods according to claim 10, it is characterised in that the transmission of the first signaling
Carrier wave is deployed in mandate frequency spectrum.
14. methods according to claim 11, it is characterised in that the second signaling includes K
Individual sub-signaling, the most every sub-signaling indicates an Equations of The Second Kind to send space, and K is equal to N2, described
K sub-signaling is respectively K subframe transmission, and described sub-signaling is one group of information bit or one
Characteristic sequence.
15. according to claim 12, the method described in 13, it is characterised in that Equations of The Second Kind sends
Space is positioned at mandate frequency spectrum on frequency domain, and K is equal to N2.
16. according to claim 11, the method described in 12, it is characterised in that N number of first kind is sent out
Sending the frequency domain resource all including in unlicensed spectrum in space, described K is equal to N.
17. methods according to claim 16, it is characterised in that described Equations of The Second Kind sends
It is one to one that space and the described first kind send space, and described Equations of The Second Kind sends space and correspondence
The described first kind send be spatially located at different carrier waves.
18. 1 kinds of subscriber equipmenies, it is characterised in that this equipment includes:
First module: for sending the first signaling, the first signaling instruction the oneth RPT, a RPT
Space is sent including N number of first kind
Second module: send for N1 the first kind in a RPT and send D2D in space
Signal, sends in space in remaining N-N1 first kind and keeps zero transmit power
Three module: send D2D signal in sending space at N2 Equations of The Second Kind
Wherein, described N number of first kind send spatial distribution in N number of different subframe, an institute
Stating the corresponding subframe in transmission space, it is orthogonal that Equations of The Second Kind sends space and first kind transmission space
, N is greater than the positive integer of 1, and rare 1 first kind that N number of first kind sends in space is sent out
Sending space to include the frequency domain resource in unlicensed spectrum, N1 is no more than the nonnegative integer of N, N2
It is no more than the nonnegative integer of N-N1.
19. equipment according to claim 18, it is characterised in that described N2 Equations of The Second Kind
Sending space is the subset that K Equations of The Second Kind sends space.Described K Equations of The Second Kind send space be by
The second signaling instruction that first module sends, or by a RPT implicit expression instruction.
20. 1 kinds of subscriber equipmenies, it is characterised in that this equipment includes:
First module: for receiving the first signaling, the first signaling instruction the oneth RPT, a RPT
Space is sent including N number of first kind
Second module: for and only the transmission of N1 first kind in RPT space connects
Receive D2D signal；Or N1 the first kind in a RPT sends and receives D2D letter in space
Number, send in space in remaining N-N1 first kind and do not detect D2D signal
Three module: receive D2D signal in sending space at N2 Equations of The Second Kind
Wherein, described N number of first kind send spatial distribution in N number of different subframe, an institute
Stating the corresponding subframe in transmission space, it is orthogonal that Equations of The Second Kind sends space and first kind transmission space
, N is greater than the positive integer of 1, and rare 1 first kind that N number of first kind sends in space is sent out
Sending space to include the frequency domain resource in unlicensed spectrum, N1 is no more than the nonnegative integer of N, N2
It is no more than the nonnegative integer of N-N1.
21. equipment according to claim 20, it is characterised in that described N2 Equations of The Second Kind
Sending space is the subset that K Equations of The Second Kind sends space.Described K Equations of The Second Kind send space be by
The second signaling instruction that first module sends, or by a RPT implicit expression instruction.
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| CN201910030987.4A CN109561439B (en) | 2014-05-14 | 2014-05-14 | Interference coordination method and device on unlicensed spectrum |
| CN201410204005.6A CN105898755B (en) | 2014-05-14 | 2014-05-14 | A kind of interference synergic method and apparatus in unlicensed spectrum |
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| WO2018177109A1 (en) * | 2017-03-28 | 2018-10-04 | 中兴通讯股份有限公司 | Data transmission method and device, terminal, and storage medium |
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| CN109561439A (en) | 2019-04-02 |
| CN109561439B (en) | 2022-08-26 |
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