CN109561439A - A kind of interference synergic method and apparatus in unlicensed spectrum - Google Patents
A kind of interference synergic method and apparatus in unlicensed spectrum Download PDFInfo
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- CN109561439A CN109561439A CN201910030987.4A CN201910030987A CN109561439A CN 109561439 A CN109561439 A CN 109561439A CN 201910030987 A CN201910030987 A CN 201910030987A CN 109561439 A CN109561439 A CN 109561439A
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Abstract
The invention proposes the interference synergic method and apparatus in a kind of unlicensed spectrum.This problem of bursty interference is not adapted in unlicensed spectrum for traditional D2D distribution mechanism based on RPT, D2D sends UE and sends signal deployment RPT, it is explicit simultaneously or implicit for RPT configuration substitute transmission space, if the transmission space of the RPT is not suitable for transmission objectives D2D data, the D2D sends UE and sends the target D2D data on substitute transmission space.The solution of the present invention is compatible with DFS scheme, while ensuring the transmission robustness of traditional RPT scheme.In addition, the present invention has been compatible with the meeting conclusion about D2D communication, has good compatibility.
Description
The application is the divisional application of following original application:
-- the applying date of original application: on May 14th, 2014
-- the application number of original application: 201410204005.6
-- a kind of invention and created name of original application: the interference synergic method and apparatus in unlicensed spectrum
Technical field
The present invention relates to D2D (Device to Device, device is to device) communication in scheduling scheme, more particularly to
Based on LTE (Long Term Evolution, long term evolution) scheduling scheme of the D2D in unlicensed spectrum.
Background technique
Traditional 3GPP (3rd Generation Partner Project, third generation cooperative partner program) LTE system
In, data transmission occurs between base station and UE (User Equipment, user equipment).In 3GPP R12, D2D communicates quilt
It sets up the project and is discussed, the essential characteristic of D2D is that the data between UE is allowed to transmit.For FDD (Frequency Division
Duplex, frequency division duplex) and TDD (Time Division Duplex, time division duplex) system for, 3GPP is in RAN1 (Radio
Access Network Working Group 1, the first working group of wireless access network) conclusion reached in #73 meeting is:
UE in D2D system does not allow to receive and dispatch simultaneously.Further, in order to avoid the interference that downlink data communicates D2D, UE, which is occupied, to be passed
Ascending resource, that is, FDD upstream band of system or the sub-frame of uplink of TDD are used for D2D communication, and (TDD downlink subframe needs further
It discusses).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) sends UE distribution for sending SA (Scheduling to D2D
Assignment, scheduling configuration) and physical layer data resource.
Base station is configured to receive or be sent by SIB (System Information Block, system information block)
The candidate resource pond of SA.
Base station is explicit or implicitly configures one or more RPT (Resource Patterns for
Transmission sends resource map), a RPT is mapped to multiple D2D for transmitting data in physical layer and sends space.RPT
By the explicit or implicit instruction of SA.
In traditional 3GPP LTE system, data transmission be can only occur on authorization frequency spectrum, however as the urgency of portfolio
Increase severely big, especially in some urban areas, frequency spectrum is authorized to be likely difficult to meet the needs of portfolio.62 plenary sessions of 3GPP RAN
A new research topic, the i.e. research (RP-132085) of unlicensed spectrum are discussed, main purpose is that research and utilization is awarded non-
Dependent (Non-standalone) deployment of the LTE on frequency spectrum is weighed, so-called dependent refers to the communication in unlicensed spectrum
Want and authorize the serving cell on frequency spectrum associated.One intuitive method is the CA reused in existing system as far as possible
The concept of (Carrier Aggregation, carrier wave polymerization), that is, be deployed in the serving cell on authorization frequency spectrum as Pcell
(Primary Cell, main plot), be deployed in serving cell in unlicensed spectrum as Scell (Secondary Cell, it is auxiliary
Cell).The CA includes traditional TDD CA, FDD (Frequency Division Duplex, frequency division duplex) CA, and
The FDD-TDD CA that 3GPP R12 is introduced.For unlicensed spectrum, it is contemplated that uncontrollable/prediction of its interference level, UE can
It can be configured more carrier waves while use the side of DFS (Dynamical Frequency Selection, dynamic spectrum selection)
Formula (giving stator frame) selects partial carrier wave from optional carrier wave and is used for transmission data.
Inventors discovered through research that a problem to be solved is when D2D communication occurs in unlicensed spectrum
It is incompatible between the configuration mode and DFS technology of RPT.In 3GPP R12, base station is using RPT configuration D2D resource block to reduce
The signaling overheads of D2D resource distribution, the D2D resource block are distributed over multiple subframes, and part of subframe may be by prominent
Hair shaft disturbs and is not suitable for the transmission of D2D signal.The D2D physics number of plies is not transmitted when the part D2D in a RPT sends space
According to when, how to ensure that the transmission robustness of D2D physical layer data is a problem to be solved.
In view of the above-mentioned problems, the invention discloses the interference synergic method and apparatus in a kind of unlicensed spectrum.
Summary of the invention
The invention discloses a kind of methods in UE, which comprises the steps of:
Step A. sends the first signaling, and the first signaling indicates that the first RPT, the first RPT include that N number of first kind sends space
Step B. sends in the N1 first kind in the first RPT and sends D2D signal in space, in remaining N-N1 first kind
It sends and keeps zero to send power in space
Step C. sends in N2 the second classes and sends D2D signal in space
Wherein, N number of first kind sends spatial distribution in N number of different subframe, and a transmission space is corresponding
One subframe, the second class send space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first kind hair
Rare 1 first kind in space is sent to send including the frequency domain resource in unlicensed spectrum in space, N1 is no more than the non-negative of N
Integer, N2 are no more than the nonnegative integer of N-N1.
As one embodiment, the first signaling is the information bit in physical layer signaling.As another embodiment, first
Signaling is SA.As one embodiment, N2 is equal to N-N1.It is described it is orthogonal refer to two send spaces be in different subframe or
Different carrier waves.As one embodiment, N number of first kind in the first RPT sends spatial distribution and is deployed in non-award same
On the carrier wave for weighing frequency spectrum.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. sends K the second classes of the second signaling instruction and sends space
Wherein, it is the subset that the K the second classes send space that the N2 the second classes, which send space, and K is no more than N's
Positive integer.
As one embodiment, K is equal to N2, and stating N2 the second classes and sending space is that the K the second classes send space.Make
For another embodiment, K is equal to N.
As one embodiment, the K the second classes send space, and corresponding subframe is implicit by the first RPT in the time domain
It indicates, the K the second classes send space and are deployed in the same given carrier wave on frequency domain, and the given carrier wave is by second
Signaling instruction.As one embodiment, the second signaling is that the information bit and the first signaling in a physical layer signaling belong to
The same physical layer signaling.As another embodiment, the second signaling is RRC (Radio Resource Control, wireless money
Source control) layer signaling.
Specifically, above-mentioned aspect according to the present invention, which is characterized in that the second signaling includes K sub- signalings, wherein each
Sub- signaling indicates that second class sends space, and K is equal to N2, and the K sub- signalings are sent in K subframe respectively, the sub- letter
Order is a group information bit or a characteristic sequence.
As one embodiment, the characteristic sequence is ZC (Zadoff Chu) sequence.It is described as another embodiment
Characteristic sequence is pseudo-random sequence.
Specifically, according to an aspect of the present invention, which is characterized in that it is K that the N2 the second classes, which send spaces,
Two classes send the subset in space, and it is by the first RPT implicit instruction that the K the second classes, which send space, and the K is no more than N
Positive integer.
As one embodiment, the K the second classes send spaces be deployed in the time domain it is nearest after the first RPT
And be not configured as the first kind and send in the K subframe in space, the K the second classes transmission spaces are deployed in same on frequency domain
A given carrier wave, the given carrier wave are the transmission carrier waves of the first signaling.
Specifically, according to an aspect of the present invention, which is characterized in that the step B further includes following one:
Step B1. detects the interference noise in N number of first kind transmission space, and wherein the N-N1 first kind is sent in space
Interference noise is more than specific threshold, and the N1 first kind sends the interference noise in space and be no more than specific threshold
Step B2. receives downlink signaling, and the downlink signaling instruction is sent in space in N-N1 first kind of the substitute
Zero is kept to send power
Wherein, the specific threshold is predefined or is configurable.
The suitable D2D transmission UE of above-mentioned steps B1 is in outside MPS process and the scene in MPS process, essence
It is that D2D transmission UE voluntarily determines that can the first kind send space and be used for the transmission of D2D signal；Above-mentioned steps B2 is suitble to D2D to send UE
Scene in MPS process, essence are that the serving cell of D2D transmission UE determines that can the first kind send space and be used for D2D
Signal transmission.
Specifically, according to an aspect of the present invention, which is characterized in that the transmission carrier wave of the first signaling is deployed in authorization frequency
Spectrum.
Above-mentioned aspect ensure the first signaling transmission will not because of unlicensed spectrum bursty interference and terminate.
Specifically, according to an aspect of the present invention, which is characterized in that the second class sends space and is located at authorization on frequency domain
Frequency spectrum, K are equal to N2.
Above-mentioned aspect ensures that the second class sends space will not be unavailable because of the bursty interference of unlicensed spectrum.
Specifically, according to an aspect of the present invention, which is characterized in that it all includes non-award in space that N number of first kind, which is sent,
The frequency domain resource on frequency spectrum is weighed, the K is equal to N.
As one embodiment, the second signaling indicates the 2nd RPT.
Specifically, above-mentioned aspect according to the present invention, which is characterized in that second class sends space and the first kind
Sending space is that correspondingly, second class sends space and the corresponding first kind transmission is spatially located at different loads
Wave.
As one embodiment, it is that the corresponding first kind sends space that second class, which sends subframe belonging to space,
Affiliated subframe is the same subframe.As one embodiment, second class sends space and is deployed in unlicensed spectrum.
The invention discloses a kind of methods in UE, which comprises the steps of:
Step A. receives the first signaling, and the first signaling indicates that the first RPT, the first RPT include that N number of first kind sends space
Step B. and only in the first RPT the N1 first kind send space in receive D2D signal；Or first
The N1 first kind in RPT, which is sent, receives D2D signal in space, send in space in remaining N-N1 first kind and do not detect
D2D signal
Step C. sends in N2 the second classes and receives D2D signal in space
Wherein, N number of first kind sends spatial distribution in N number of different subframe, and a transmission space is corresponding
One subframe, the second class send space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first kind hair
Rare 1 first kind in space is sent to send including the frequency domain resource in unlicensed spectrum in space, N1 is no more than the non-negative of N
Integer, N2 are no more than the nonnegative integer of N-N1.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. receives the second signaling and determines that K the second classes send space
Wherein, it is the subset that the K the second classes send space that the N2 the second classes, which send space, and K is no more than N's
Positive integer.
Specifically, above-mentioned aspect according to the present invention, which is characterized in that the second signaling includes K sub- signalings, wherein each
Sub- signaling indicates that second class sends space, and K is equal to N2, and the K sub- signalings are sent in K subframe respectively, the sub- letter
Order is a group information bit or a characteristic sequence.
Specifically, according to an aspect of the present invention, which is characterized in that it is K that the N2 the second classes, which send spaces,
Two classes send the subset in space, and it is by the first RPT implicit instruction that the K the second classes, which send space, and the K is no more than N
Positive integer.
Specifically, according to an aspect of the present invention, which is characterized in that the transmission carrier wave of the first signaling is deployed in authorization frequency
Spectrum.
Specifically, according to an aspect of the present invention, which is characterized in that the second class sends space and is located at authorization on frequency domain
Frequency spectrum, K are equal to N2.
Above-mentioned aspect ensures that the second class sends space will not be unavailable because of the bursty interference of unlicensed spectrum.
Specifically, according to an aspect of the present invention, which is characterized in that it all includes non-award in space that N number of first kind, which is sent,
The frequency domain resource on frequency spectrum is weighed, the K is equal to N.
Specifically, above-mentioned aspect according to the present invention, which is characterized in that second class sends space and the first kind
Sending space is that correspondingly, second class sends space and the corresponding first kind transmission is spatially located at different loads
Wave.
As one embodiment, it is that the corresponding first kind sends space that second class, which sends subframe belonging to space,
D-th of subframe after affiliated subframe, the d are positive integers.The d can satisfy the UE detection first kind and send in space
Whether D2D signal is transmitted, if it is determined that transmits D2D signal, then the UE sends in space in corresponding second class and do not connect
Receive D2D signal, if it is determined that do not transmit D2D signal, then the UE sends in corresponding second class and receives D2D letter in space
Number.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: for sending the first signaling, the first signaling indicates that the first RPT, the first RPT include N number of first kind hair
Send space
Second module: D2D signal is sent in space for sending in the N1 first kind in the first RPT, in remaining N-N1
A first kind, which is sent, keeps zero to send power in space
Third module: D2D signal is sent in space for sending in N2 the second classes
Wherein, N number of first kind sends spatial distribution in N number of different subframe, and a transmission space is corresponding
One subframe, the second class send space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first kind hair
Rare 1 first kind in space is sent to send including the frequency domain resource in unlicensed spectrum in space, N1 is no more than the non-negative of N
Integer, N2 are no more than the nonnegative integer of N-N1.
As one embodiment, above equipment is characterized in that, it is K the second class hairs that the N2 the second classes, which send space,
Send the subset in space.The K the second classes, which send spaces, is that the second signaling sent by the first module indicates, or by the
One RPT implicit instruction.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: for receiving the first signaling, the first signaling indicates that the first RPT, the first RPT include N number of first kind hair
Send space
Second module: for and only in the first RPT the N1 first kind send space in receive D2D signal；Or
It is sent in the N1 first kind in the first RPT and receives D2D signal in space, sent in space in remaining N-N1 first kind and do not examine
Measure D2D signal
Third module: D2D signal is received in space for sending in N2 the second classes
Wherein, N number of first kind sends spatial distribution in N number of different subframe, and a transmission space is corresponding
One subframe, the second class send space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first kind hair
Rare 1 first kind in space is sent to send including the frequency domain resource in unlicensed spectrum in space, N1 is no more than the non-negative of N
Integer, N2 are no more than the nonnegative integer of N-N1.
As one embodiment, above equipment is characterized in that, it is K the second class hairs that the N2 the second classes, which send space,
Send the subset in space.The K the second classes, which send spaces, is that the second signaling sent by the first module indicates, or by the
One RPT implicit instruction.
This problem of bursty interference is not adapted in unlicensed spectrum for traditional D2D distribution mechanism based on RPT,
The invention discloses the interference synergic method and apparatus in a kind of unlicensed spectrum, D2D sends UE and sends signal deployment RPT, together
When it is explicit or it is implicit configure substitute for the RPT and send space, if the transmission space of the RPT is not suitable for transmission mesh
D2D data are marked, the D2D sends UE and sends the target D2D data on substitute transmission space.The solution of the present invention is compatible
DFS scheme, while ensuring the transmission robustness of traditional RPT scheme.In addition, the present invention has been compatible with the meeting about D2D communication
Conclusion has good compatibility.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart of D2D communication according to an embodiment of the invention；
Fig. 2 shows D2D scheduling of resource schematic diagrames 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 the D2D scheduling of resource schematic diagram of still another embodiment in accordance with the present invention；
Fig. 5 shows the processing unit structural block diagram in D2D transmission UE according to an embodiment of the invention；
Fig. 6 shows the processing unit structural block diagram in D2D reception UE according to an embodiment of the invention.
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart of D2D communication, as shown in Fig. 1.In attached drawing 1, UE U1 is that D2D sends UE, right
It includes UE U2 that the D2D answered, which receives UE,.
ForUE U1, in step s 11, the first signaling is sent, the first signaling indicates the first RPT, and the first RPT includes N number of
The first kind sends space；In step s 12, it is sent in the N1 first kind in the first RPT and sends D2D signal in space, at it
The remaining N-N1 first kind, which is sent, keeps zero to send power in space；In step s 13, it sends in space and sends in N2 the second classes
D2D signal.
For UE U2, in the step s 21, the first signaling is received, the first signaling indicates the first RPT, and the first RPT includes N number of
The first kind sends space；In step S22, and only in the first RPT the N1 first kind send space in receive D2D signal
(not detecting D2D signal in remaining transmission space of the first RPT)；Or the N1 first kind in the first RPT sends sky
Between middle reception D2D signal, sent in remaining N-N1 first kind and do not detect D2D signal (i.e. at the N-N1 the in space
One kind, which is sent, detects D2D signal in space)；In step S23, is sent in N2 the second classes and receive D2D signal in space.
In embodiment 1, N number of first kind sends spatial distribution in N number of different subframe, a transmission space
A corresponding subframe, the second class sends space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first
Class sends rare 1 first kind in space and sends including the frequency domain resource in unlicensed spectrum in space, and N1 is no more than N's
Nonnegative integer, N2 are equal to N-N1.
As the sub- embodiment 1 of embodiment 1, UE U1 sends the second signaling in step s 11 and indicates N2 second class
Send space；UE U2 receives the second signaling in the step s 21 and determines that the N2 the second classes send space.
In the sub- embodiment 1 of embodiment 1, the second signaling includes N2 sub- signalings, wherein every sub- signaling instruction one the
Two classes send space, and the N2 sub- signalings are sent in N2 subframe respectively, and the sub- signaling is a group information bit or one
A characteristic sequence.
As the sub- embodiment 2 of embodiment 1, UE U1 executes following one in step s 12:
- detects the interference noise in N number of first kind transmission space, and wherein the N-N1 first kind sends the interference in space
Noise is more than specific threshold, and the N1 first kind sends the interference noise in space and be no more than specific threshold
- receives downlink signaling, and the downlink signaling instruction is sent in space in N-N1 first kind of the substitute keeps zero
Send power
In the sub- embodiment 2 of embodiment 1, the specific threshold is predefined or is configurable.
As the sub- embodiment 3 of embodiment 1, the transmission carrier wave of the first signaling is deployed in authorization frequency spectrum, and the second class sends empty
Between be deployed on the transmission carrier wave of the first signaling.
Embodiment 2
Embodiment 2 illustrates D2D scheduling of resource schematic diagram, as shown in Fig. 2.In attached drawing 2, the lattice of oblique line mark is
The lattice of the transmission subframe of first signaling, backslash mark is the transmission subframe of the second signaling, and the lattice for identifying D1-D4 is
The first kind sends space, and the lattice for identifying T3-T4 is that the second class sends space, and the lattice of thick line mark is to be used for transmission
The transmission space of D2D signal.
UE is sent for D2D, sends the first signaling (as indicated by arrows f1) and the second signaling (such as arrow in first carrier first
Head F2, shown in F3) indicate respectively that the first RPT and N2 the second classes send space；Then the N1 first kind hair in the first RPT
Transmission D2D signal (shown in such as D1, D2) is sent in space, sends in space (shown in such as D3, D4) and protects in remaining N-N1 first kind
Hold zero transmission power；Then it is sent in the N2 the second classes and sends D2D signal in space (shown in such as T3, T4).
UE is received for D2D, receives the first signaling (as indicated by arrows f1) and the second signaling (such as arrow in first carrier first
Head F2, shown in F3) determine that the first RPT and N2 the second classes send space respectively；Then and the only N1 in the first RPT the
One kind, which is sent, receives D2D signal in space (shown in such as D1, D2)；Then space (such as T3, T4 institute is sent in the N2 the second classes
Show) in receive D2D signal.
In embodiment 2, N is 4, and the first RPT includes that N number of first kind sends space, and N number of first kind sends spatial distribution
In N number of different subframe of the second carrier wave (shown in such as D1, D2, D3, D4), the corresponding subframe in a transmission space,
Second carrier wave is deployed in unlicensed spectrum, and N1 is that 2, N2 is 2.The N2 the second classes send spatial distributions third carrier wave not
With (shown in such as T3, T4), third carrier wave is deployed in unlicensed spectrum, and it is the N that the N2 the second classes, which send space, in subframe
A second class sends the subset in space.
In embodiment 2, the second signaling includes N2 sub- signalings, wherein every sub- signaling indicates that second class sends space
It is sent (the corresponding first kind sends space and do not transmit D2D signal) for D2D signal, the N2 sub- signalings are respectively in N2 son
Frame is sent, and the sub- signaling is a group information bit or a characteristic sequence.
In embodiment 2, D2D receives the transmission that UE determines D2D signal according to the first signaling and the second signaling of D2D transmission UE
Space does not need the transmission space for voluntarily judging D2D signal, has lower complexity.However the second signaling additionally occupies
Resource overhead.
As the sub- embodiment 1 of embodiment 2, first carrier is deployed in authorization frequency spectrum.
As the sub- embodiment 2 of embodiment 2, the sub- signaling is a characteristic sequence, and the sub- signaling indicates
D2D signal sends transmission in space (transmitting without sending in space in the corresponding first kind) in corresponding second class.The son
Signaling to corresponding second class send space mapping and the sub- signaling to the corresponding first kind transmission space mapping be pre-
It is determining or can preparing.
Embodiment 3
Embodiment 3 illustrates another D2D scheduling of resource schematic diagram, as shown in Fig. 3.In attached drawing 3, oblique line is identified small
Grid is the transmission subframe of the first signaling.The lattice of mark D1-D4 is that the first kind sends space, identifies the lattice of T1-T4
It is that the second class sends space, the lattice of thick line mark is the transmission space for being used for transmission D2D signal.
UE is sent for D2D, the first signaling (as shown in arrow F10) is sent in first carrier first and indicates the first RPT；So
It is sent afterwards in the N1 first kind in the first RPT and sends D2D signal in space (shown in such as D1, D2), at remaining N-N1 first
Class, which is sent, keeps zero to send power in space (shown in such as D3, D4)；Then send in spaces in the N2 the second classes (such as T3,
Shown in T4) send D2D signal.
UE is received for D2D, the first signaling (as shown in arrow F10) is received in first carrier first and determines the first RPT；So
The N1 first kind in the first RPT, which is sent, afterwards receives D2D signal in space (shown in such as D1, D2), at remaining N-N1 first
Class sends in space (shown in such as D3, D4) and does not detect D2D signal；Then space (such as T3, T4 are sent in the N2 the second classes
It is shown) in receive D2D signal.
In embodiment 3, N is 4, and the first RPT includes that N number of first kind sends space, and N number of first kind sends spatial distribution
In N number of different subframe of the second carrier wave (shown in such as D1, D2, D3, D4), the corresponding subframe in a transmission space,
Second carrier wave is deployed in unlicensed spectrum, and N1 is that 2, N2 is 2.It is that N number of second class sends sky that the N2 the second classes, which send space,
Between subset, N number of second class sends spatial distribution in the different subframes of first carrier, and N number of second class sends empty
Between specific location on first carrier be by the first RPT implicit instruction (shown in such as T1, T2, T3, T4).
In embodiment 3, it is one-to-one-D1 that N number of second class, which sends space and N number of first kind transmission space,
Corresponding T1, D2 correspond to T2, and D3 corresponds to T3, and D4 corresponds to T4.If the first kind sends space and does not transmit D2D signal, the D2D signal
Space propagation is sent in corresponding second class.
In embodiment 3, D2D receives UE and needs voluntarily to judge that the first kind sends in space whether transmit D2D signal-for example
According to the DMRS (Demodulation Reference Signal, demodulated reference signal) of D2D signal, has higher complexity
Degree.However the resource of the second signaling occupancy is saved compared to embodiment 2.
As the sub- embodiment 1 of embodiment 3, the D2D sends the interference noise in UE detection transmission space D1-D4,
Interference noise in middle transmission space D3, D4 is more than specific threshold, sends space D1, and the interference noise in D2 is no more than certain threshold
Value, the specific threshold are predefined or are configurable.
As the sub- embodiment 2 of embodiment 3, the D2D sends UE and receives downlink signaling, and the downlink signaling instruction is being sent out
Space D3 is sent, keeps zero to send power in D4.
As the sub- embodiment 3 of embodiment 3, second class sends space and the corresponding first kind sends space and exists
The same subframe is sent.
Embodiment 4
Embodiment 4 illustrates another D2D scheduling of resource schematic diagram, as shown in Fig. 4.In attached drawing 4, oblique line is identified small
Grid is the transmission subframe of the first signaling, and the lattice of backslash mark is the transmission subframe of the second signaling, the first signaling and the
Two signalings are at the same sub-frame transmission (shown in the lattice identified such as cross spider).The lattice of mark D1-D4 is first kind hair
Space is sent, the lattice for identifying T1-T4 is that the second class sends space, and the lattice of thick line mark is used for transmission D2D signal
Send space.
UE is sent for D2D, the first signaling (as shown in arrow F100) is sent in first carrier first and the second signaling is (such as
Shown in arrow F101) indicate respectively that the first RPT and N number of second class send space (shown in such as T1, T2, T3, T4)；Then first
The N1 first kind in RPT, which is sent, sends D2D signal (shown in such as D1, D2) in space, send in remaining N-N1 first kind empty
Between (shown in such as D3, D4) in keep zero send power；Then it sends in space in the N2 the second classes and is sent out (shown in such as T3, T4)
Send D2D signal.
UE is received for D2D, the first signaling (as shown in arrow F100) is received in first carrier first and the second signaling is (such as
Shown in arrow F101) determine that the first RPT and N number of second class send space respectively (shown in such as T1, T2, T3, T4)；Then first
The N1 first kind in RPT, which is sent, receives D2D signal in space (shown in such as D1, D2), send in remaining N-N1 first kind empty
Between (shown in such as D3, D4) in do not detect D2D signal；Then it is sent in space (shown in such as T3, T4) in the N2 the second classes
Receive D2D signal.
In embodiment 4, N is 4, and the first RPT includes that N number of first kind sends space, and N number of first kind sends spatial distribution
In N number of different subframe of the second carrier wave (shown in such as D1, D2, D3, D4), the corresponding subframe in a transmission space,
Second carrier wave is deployed in unlicensed spectrum, and N1 is that 2, N2 is 2.N number of second class send spatial distribution third carrier wave not
With (shown in such as T1, T2, T3, T4), third carrier wave is deployed in unlicensed spectrum in subframe.
In embodiment 4, it is that one-to-one-D1 is corresponding that second class, which sends space and first kind transmission space,
T1, D2 correspond to T2, and D3 corresponds to T3, and D4 corresponds to T4, if the first kind sends space and do not transmit D2D signal, the D2D signal is right
The second class answered sends space propagation.
As the sub- embodiment 1 of embodiment 4, the D2D sends the interference noise in UE detection transmission space D1-4, wherein
Space D3 is sent, the interference noise in D4 is more than specific threshold, sends space D1, and the interference noise in D2 is no more than certain threshold
Value, the specific threshold are predefined or are configurable.
As the sub- embodiment 2 of embodiment 4, the D2D sends UE and receives downlink signaling, and the downlink signaling instruction is being sent out
Space D3 is sent, keeps zero to send power in D4.
As the sub- embodiment 3 of embodiment 4, it is that its corresponding first kind sends sky that the second class, which sends subframe belonging to space,
Between belonging to subframe after subframe, i.e. D2D receives UE and do not need to detect the second carrier wave and third carrier wave simultaneously, reduce pair
The radio frequency requirement of D2D reception UE.
Embodiment 5
Embodiment 5 illustrates the processing unit structural block diagram in D2D transmission UE, as shown in Fig. 5.In attached drawing 5, processing dress
Setting 200 is by sending module 201, and sending module 202 and sending module 203 form.
Sending module 201 indicates the first RPT for sending the first signaling, the first signaling, and the first RPT includes N number of first kind
Send space；Sending module 202, which is used to send in the N1 first kind in the first RPT, sends D2D signal in space, in remaining N-
The N1 first kind, which is sent, keeps zero to send power in space；Sending module 203 is used to send in space in N2 the second classes and send
D2D signal
In embodiment 5, N number of first kind sends spatial distribution in N number of different subframe, a transmission space
A corresponding subframe, the second class sends space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first
Class sends rare 1 first kind in space and sends including the frequency domain resource in unlicensed spectrum in space, and N1 is no more than N's
Nonnegative integer, N2 are no more than the nonnegative integer of N-N1.It is that K the second classes send space that the N2 the second classes, which send space,
Subset.The K the second classes, which send spaces, is that the second signaling sent by the first module indicates, or hidden by the first RPT
Formula instruction.
As the sub- embodiment 1 of embodiment 5, the second class sends the transmission carrier wave that space is located at the first signaling on frequency domain,
The transmission carrier wave is deployed in authorization frequency spectrum.
As the sub- embodiment 2 of embodiment 5, sending module 202 executes following one:
- detects the interference noise in N number of first kind transmission space, and wherein the N-N1 first kind sends the interference in space
Noise is more than specific threshold, and the N1 first kind sends the interference noise in space and be no more than specific threshold；
- receives downlink signaling, and the downlink signaling instruction is sent in space in N-N1 first kind of the substitute keeps zero
Send power；
Wherein, the specific threshold is predefined or is configurable.
Embodiment 6
Embodiment 6 is the processing unit structural block diagram in D2D reception UE, as shown in Fig. 6.In attached drawing 6, processing unit
300 be by receiving module 301, and receiving module 302 and receiving module 303 form.
Receiving module 301 indicates the first RPT for receiving the first signaling, the first signaling, and the first RPT includes N number of first kind
Send space；Receiving module 302 is used to and only sends in the N1 first kind in the first RPT receive D2D signal in space；Or
Person sends in the N1 first kind in the first RPT and receives D2D signal in space, sends in space not in remaining N-N1 first kind
Detect D2D signal；Receiving module 303, which is used to send in N2 the second classes, receives D2D signal in space.
In embodiment 6, N number of first kind sends spatial distribution in N number of different subframe, a transmission space
A corresponding subframe, the second class sends space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first
Class sends rare 1 first kind in space and sends including the frequency domain resource in unlicensed spectrum in space, and N1 is no more than N's
Nonnegative integer, N2 are no more than the nonnegative integer of N-N1.It is that K the second classes send space that the N2 the second classes, which send space,
Subset.The K the second classes, which send spaces, is that the second signaling sent by the first module indicates, or hidden by the first RPT
Formula instruction.
As the sub- embodiment 1 of embodiment 6, N number of first kind, which is sent in space, to be all deployed in unlicensed spectrum, institute
K is stated equal to N.
As the sub- embodiment 2 of embodiment 6, receiving module 301 receives the second signaling and determines that K the second classes send space；
Wherein, it is the subset that the K the second classes send space that the N2 the second classes, which send space, and K is no more than the positive integer of N.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (15)
1. a kind of user equipment, which is characterized in that the equipment includes:
First module: for sending the first signaling, the first signaling indicates that the first RPT, the first RPT include that N number of first kind sends sky
Between；
Second module: sending D2D signal for sending in the N1 first kind in the first RPT in space, in remaining N-N1 the
One kind, which is sent, keeps zero to send power in space；
Third module: D2D signal is sent in space for sending in N2 the second classes；
Wherein, N number of first kind sends spatial distribution in N number of different subframe, and a transmission space is one corresponding
Subframe, the second class send space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first kind hair
Send spatial distribution on the same carrier wave for being deployed in unlicensed spectrum, N1 is no more than the nonnegative integer of N, and N2 is no more than N-
The nonnegative integer of N1.
2. user equipment according to claim 1, which is characterized in that the step A further includes following steps:
Step A1. sends K the second classes of the second signaling instruction and sends space；
Wherein, it is the subset that the K the second classes send space that the N2 the second classes, which send space, and K is no more than the just whole of N
Number.
3. user equipment according to claim 1, which is characterized in that it is K second that the N2 the second classes, which send space,
Class sends the subset in space, and it is by the first RPT implicit instruction that the K the second classes, which send space, and the K is no more than N's
Positive integer.
4. user equipment according to claim 1, which is characterized in that second module executes following one:
- detects the interference noise in N number of first kind transmission space, and wherein the N-N1 first kind sends the interference noise in space
More than specific threshold, the N1 first kind sends the interference noise in space and is no more than specific threshold；
- receives downlink signaling, and the downlink signaling instruction is sent in N-N1 first kind of the substitute keeps zero to send in space
Power；
Wherein, the specific threshold is predefined or is configurable.
5. user equipment according to claim 1, which is characterized in that the transmission carrier wave of the first signaling is deployed in authorization frequency
Spectrum.
6. user equipment according to claim 2, which is characterized in that the second signaling includes K sub- signalings, wherein every height
Signaling indicates that second class sends space, and K is equal to N2, and the K sub- signalings are sent in K subframe respectively, the sub- signaling
It is a group information bit or a characteristic sequence.
7. user equipment according to claim 3, which is characterized in that the second class sends space and is located at authorization frequency on frequency domain
Spectrum, K are equal to N2.
8. user equipment according to claim 2 or 3, which is characterized in that the K is equal to N, and second class sends space
Sending space with the first kind is one-to-one, the second class transmission space and corresponding first kind transmission space
Positioned at different carrier waves.
9. a kind of user equipment, which is characterized in that the equipment includes:
First module: for receiving the first signaling, the first signaling indicates that the first RPT, the first RPT include that N number of first kind sends sky
Between；
Second module: for and only in the first RPT the N1 first kind send space in receive D2D signal；Or
The N1 first kind in one RPT, which is sent, receives D2D signal in space, send in space in remaining N-N1 first kind and do not detect
D2D signal；
Third module: D2D signal is received in space for sending in N2 the second classes；
Wherein, N number of first kind sends spatial distribution in N number of different subframe, and a transmission space is one corresponding
Subframe, the second class send space and the first kind send space be it is orthogonal, N is greater than 1 positive integer, N number of first kind hair
Send spatial distribution on the same carrier wave for being deployed in unlicensed spectrum, N1 is no more than the nonnegative integer of N, and N2 is no more than N-
The nonnegative integer of N1.
10. user equipment according to claim 9, which is characterized in that first module receives the second signaling and determines K
Second class sends space；
Wherein, it is the subset that the K the second classes send space that the N2 the second classes, which send space, and K is no more than the just whole of N
Number.
11. user equipment according to claim 9, which is characterized in that it is K second that the N2 the second classes, which send space,
Class sends the subset in space, and it is by the first RPT implicit instruction that the K the second classes, which send space, and the K is no more than N's
Positive integer.
12. user equipment according to claim 9, which is characterized in that the transmission carrier wave of the first signaling is deployed in authorization frequency
Spectrum.
13. user equipment according to claim 10, which is characterized in that the second signaling includes K sub- signalings, wherein each
Sub- signaling indicates that second class sends space, and K is equal to N2, and the K sub- signalings are sent in K subframe respectively, the sub- letter
Order is a group information bit or a characteristic sequence.
14. user equipment according to claim 11, which is characterized in that the second class sends space and is located at authorization on frequency domain
Frequency spectrum, K are equal to N2.
15. user equipment described in 0 or 11 according to claim 1, which is characterized in that the K is equal to N, and second class is sent
It is one-to-one, the second class transmission space and the corresponding first kind transmission that space and the first kind, which send space,
It is spatially located at different carrier waves.
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| CN201910030987.4A CN109561439B (en) | 2014-05-14 | 2014-05-14 | Interference coordination method and device on unlicensed spectrum |
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| WO2012159270A1 (en) * | 2011-05-25 | 2012-11-29 | Renesas Mobile Corporation | Resource allocation for d2d communication |
| WO2013139041A1 (en) * | 2012-03-23 | 2013-09-26 | Renesas Mobile Corporation | Device-to-device resource allocation method and apparatus |
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| KR101596538B1 (en) * | 2009-01-26 | 2016-02-22 | 소니 주식회사 | Communication control method, communication apparatus, and recording medium |
| US9516686B2 (en) * | 2010-03-17 | 2016-12-06 | Qualcomm Incorporated | Method and apparatus for establishing and maintaining peer-to-peer (P2P) communication on unlicensed spectrum |
| US8744506B2 (en) * | 2010-06-17 | 2014-06-03 | Qualcomm Incorporated | Device discovery on white space frequencies |
| US8977276B2 (en) * | 2010-07-15 | 2015-03-10 | Nokia Corporation | Method and apparatus for device initiated offloading to unlicensed bands |
| US9055588B2 (en) * | 2011-09-06 | 2015-06-09 | Qualcomm Incorporated | Methods and apparatus for identifying and/or selecting channels |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012159270A1 (en) * | 2011-05-25 | 2012-11-29 | Renesas Mobile Corporation | Resource allocation for d2d communication |
| WO2013139041A1 (en) * | 2012-03-23 | 2013-09-26 | Renesas Mobile Corporation | Device-to-device resource allocation method and apparatus |
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