CN105472623A - LAA communication method and device of cellular network - Google Patents
LAA communication method and device of cellular network Download PDFInfo
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- CN105472623A CN105472623A CN201410459310.XA CN201410459310A CN105472623A CN 105472623 A CN105472623 A CN 105472623A CN 201410459310 A CN201410459310 A CN 201410459310A CN 105472623 A CN105472623 A CN 105472623A
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Abstract
The invention provides an LAA communication method and device of the cellular network. The method comprises the steps that 1) a base station receives a first return signaling to determine a first time frequency resource and a second time frequency resource; and 2) the base station sends a second return signaling in the second time frequency resource. Both the first time frequency resource and the second time frequency resource are placed in a first carrier wave, the first carrier wave is disposed in a non-authorized frequency spectrum, the second return signaling comprises one or two of a characteristic sequence and an information bit, and the base station maintains zero sending power in the first time frequency resource. According to the scheme of the invention, mutual interference among different adjacent base stations in LAA communication can be effectively avoided, and the communication efficiency is improved.
Description
Technical field
The present invention relates in wireless communication system the scheme utilizing unlicensed spectrum to communicate, particularly relate to method and apparatus collaborative between the base station for unlicensed spectrum (UnlicensedSpectrum) based on LTE (LongTermEvolution, Long Term Evolution).
Background technology
Traditional 3GPP (3rdGenerationPartnerProject, third generation partner program) in LTE system, transfer of data can only occur in authorizes on frequency spectrum, but along with the sharply increase of traffic carrying capacity, especially in some urban areas, frequency spectrum is authorized may to be difficult to the demand meeting traffic carrying capacity.62 plenary sessions of 3GPPRAN discuss a new research topic, namely the research (RP-132085) that unlicensed spectrum is comprehensive, main purpose is that the dependent (Non-standalone) of the LTE of research and utilization in unlicensed spectrum is disposed, and so-called dependent refers to that the communication in unlicensed spectrum is wanted and authorizes the Serving cell on frequency spectrum to be associated.One intuitively method be the CA (CarrierAggregation reused as far as possible in existing system, carrier aggregation) concept, namely be deployed in and authorize Serving cell on frequency spectrum as PCC (PrimaryComponentCarrier, main carrier), be deployed in Serving cell in unlicensed spectrum as SCC (SecondaryComponentCarrier, auxiliary carrier wave).In RAN#64 plenary session (seminar), the communication in unlicensed spectrum is LAA (LicenseAssistedAccess authorizes the auxiliary access of frequency spectrum) by Uniform Name.
Multiple adjacent base stations from different operators may be deployed on identical frequency spectrum, and then produce serious co-channel interference, such as LBT (ListenBeforeTalk, first intercept rear transmission) etc. technology to a certain degree can alleviate inter base station interference, LBT and base station or UE (UserEquipment, subscriber equipment) sending the received power first monitored before signal in unlicensed spectrum, if determine there is no interference source in described unlicensed spectrum according to described received power, then in described unlicensed spectrum, send signal, otherwise do not send signal.
It is weak collaborative that LBT can be regarded as between a kind of base station, but when the comparatively dense of LAA base station deployment, simple LBT cannot effectively avoid interference, such as when multiple base station monitoring reception power when determining to there is not interference source in a time/frequency source block, described multiple base station may send signal simultaneously and then produce stronger inter base station interference.
For the problems referred to above, the invention discloses the LAA communication means in a kind of Cellular Networks and device, i.e. a kind of stronger base station cooperative approach.
Summary of the invention
The invention discloses a kind of method in base station, it is characterized in that, comprise the steps:
-steps A. receive the first feeding back signaling and determine the first running time-frequency resource and the second running time-frequency resource
-step B. sends the second feeding back signaling on the second running time-frequency resource.
Wherein, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
Described feeding back signaling is space interface signaling.Described information bit comprises multiple bit.As an embodiment, first feeding back signaling is the synchronizing sequence being used to indicate time synchronized, first feeding back signaling implicit expression indicates the first running time-frequency resource and the second running time-frequency resource, and namely the position of the first running time-frequency resource and the second running time-frequency resource exists mapping relations with the time-frequency location of synchronizing sequence respectively.As an embodiment, the first feeding back signaling is information bit, the first feeding back signaling explicit instruction first running time-frequency resource and the second running time-frequency resource.
As an embodiment, described step B also comprises the steps:
-step B1. is at the first running time-frequency resource monitoring reception power.
Wherein, second feeding back signaling instruction sends request i.e. described base station requests and takies running time-frequency resource transmission wireless signal, described received power is lower than specific threshold, and described specific threshold is that pre-determining or described base station are determined voluntarily or is configured by the transmission base station of the first feeding back signaling.
In above-described embodiment, the received power that listens in the first running time-frequency resource is carried from the transmitter outside the base station belonging to described base station bunch in described base station, namely the base station in described base station bunch all keeps zero transmitted power at the first running time-frequency resource, described base station bunch is synchronous, corresponding synchronisation source is the head base station of described base station bunch, and other base stations are member base stations.
As an embodiment, described characteristic sequence is ZC (ZadOff-Chu) sequence.As an embodiment, described characteristic sequence shows pseudo random sequence.
As an embodiment, the first feeding back signaling and the second feeding back signaling all transmit on first carrier.
As an embodiment, the first running time-frequency resource and the second running time-frequency resource are all periodically occur
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-step C. receives the 3rd feeding back signaling and determines to send on first carrier
Three running time-frequency resource of-step D. on first carrier sends downstream wireless signals.
As an embodiment, the 3rd feeding back signaling display configuration the 3rd running time-frequency resource.As an embodiment, the 3rd running time-frequency resource is indicated by the first feeding back signaling implicit expression.As an embodiment, the 3rd feeding back signaling comprises multiple base station IDs (Identifier, identifier), and the 3rd running time-frequency resource is determined by the position of base station IDs in the 3rd feeding back signaling that described base station is corresponding, and described base station IDs is integer.
As an embodiment, described step D also comprises the steps:
-step D1. is at the first running time-frequency resource monitoring reception power.
Wherein, described received power is lower than specific threshold, and described specific threshold is that pre-determining or described base station are determined voluntarily or is configured by the transmission base station of the first feeding back signaling.
As an embodiment, the 3rd feeding back signaling all transmits on first carrier.
Concrete, according to an aspect of the present invention, it is characterized in that, described characteristic sequence is one in optional sequence pond, and the index of described characteristic sequence in described optional sequence pond is one of following:
-. option one: by the real-time Stochastic choice in described base station
-. option two: configured by the transmission base station of the first feeding back signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, the first feeding back signaling is broadcast signaling, the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
As an embodiment, there is the base station of transmission demand in the second running time-frequency resource, all send feeding back signaling in the reception base station of the first feeding back signaling and be used to indicate respective sending request.
The invention discloses a kind of method in base station, it is characterized in that, comprise the steps:
-steps A. send the first feeding back signaling and indicate the first running time-frequency resource and the second running time-frequency resource
-step B. is the set of receiving target signaling on the second running time-frequency resource, and the set of described target signaling comprises K target signaling, and wherein 1 target signaling is the second feeding back signaling, and described K is positive integer.
Wherein, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
In said method, described base station plays the head base station role in a base station bunch, except as synchronisation source, described base station also configures the running time-frequency resource of intercepting for received power in described base station bunch and the running time-frequency resource for request to send signal, and notifies that the member base stations in described base station bunch sends wireless signal.Said method avoids the afoul problem of wireless signal that the multiple base stations in described base station bunch send.
Described K target signaling is sent by the individual different base station of K.As an embodiment, described K is 1.
As an embodiment, first feeding back signaling is the synchronizing sequence being used to indicate time synchronized, first feeding back signaling implicit expression indicates the first running time-frequency resource and the second running time-frequency resource, and namely the position of the first running time-frequency resource and the second running time-frequency resource exists mapping relations with the time-frequency location of synchronizing sequence respectively.As an embodiment, the first feeding back signaling is information bit, the first feeding back signaling explicit instruction first running time-frequency resource and the second running time-frequency resource.
As an embodiment, the transmission base station requests that second feeding back signaling instruction sends request i.e. the second feeding back signaling takies running time-frequency resource transmission wireless signal, described received power is lower than specific threshold, and described specific threshold is that pre-determining or described base station are determined voluntarily or is configured by the transmission base station of the first feeding back signaling.
As an embodiment, described characteristic sequence is ZC sequence.As an embodiment, described characteristic sequence shows pseudo random sequence.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-step C. sends the 3rd feeding back signaling indicating target group of base stations and sends on first carrier, at least comprises the transmission base station of the second feeding back signaling in described target BS group.
As an embodiment, in described target BS group, also comprise the transmission base station of the first feeding back signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, described characteristic sequence is one in optional sequence pond, and the index of described characteristic sequence in described optional sequence pond is one of following:
-. option one: by the transmission base station real-time Stochastic choice of the second feeding back signaling
-. option two: configured by described base station.
Described step C will meet the equity dispatching to different base station.
As an embodiment, the index of described characteristic sequence in described optional sequence pond is described option one, and described target BS group comprises the transmission base station of all target signalings in the set of described target signaling.
As an embodiment, the index of described characteristic sequence in described optional sequence pond is described option one, and described target BS group comprises the transmission base station of all target signalings in the set of described target signaling and the transmission base station of the first feeding back signaling.
As an embodiment, described target BS group only comprises a base station, minimum value in the index that the index of described characteristic sequence in the described optional sequence pond target signaling that to be the described index of the described characteristic sequence that described option two, second feeding back signaling is corresponding be in the set of described target signaling is corresponding.
As an embodiment, described target BS group only comprises a base station, minimum value in the index of the characteristic sequence of the real-time Stochastic choice in transmission base station of the index that the index of described characteristic sequence in the described optional sequence pond target signaling that to be the described index of the described characteristic sequence that described option two, second feeding back signaling is corresponding be in the set of described target signaling is corresponding and the first feeding back signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, the first feeding back signaling is broadcast signaling, the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
As an embodiment, there is the base station of transmission demand in the second running time-frequency resource, all send feeding back signaling in the reception base station of the first feeding back signaling and be used to indicate respective sending request.
The invention discloses a kind of base station equipment, it is characterized in that, this equipment comprises:
First module: determine the first running time-frequency resource and the second running time-frequency resource for receiving the first feeding back signaling
Second module: for sending the second feeding back signaling on the second running time-frequency resource
3rd module: determine to send on first carrier for receiving the 3rd feeding back signaling
Four module: send downstream wireless signals on the 3rd running time-frequency resource on first carrier.
Wherein, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
As an embodiment, the feature of the said equipment is, the first feeding back signaling is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
As an embodiment, the second module is also at the first running time-frequency resource monitoring reception power.
Wherein, second feeding back signaling instruction sends request i.e. described base station requests and takies running time-frequency resource transmission wireless signal, described received power is lower than specific threshold, and described specific threshold is that pre-determining or described base station are determined voluntarily or is configured by the transmission base station of the first feeding back signaling.
The invention discloses a kind of base station equipment, it is characterized in that, this equipment comprises:
First module: indicate the first running time-frequency resource and the second running time-frequency resource for sending the first feeding back signaling
Second module: for receiving target signaling set on the second running time-frequency resource, the set of described target signaling comprises K target signaling, and wherein 1 target signaling is the second feeding back signaling, and described K is positive integer
3rd module: sending on first carrier for sending the 3rd feeding back signaling indicating target group of base stations, at least comprising the transmission base station of the second feeding back signaling in described target BS group.
Wherein, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
As an embodiment, the feature of the said equipment is, the first feeding back signaling is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
As an embodiment, in described target BS group, also comprise the transmission base station of the first feeding back signaling.
How to realize the closely collaborative problem being needs in LAA communication and considering between the base station in unlicensed spectrum.For this problem, the present invention proposes a kind of base station cooperative approach, head base station sends feeding back signaling and indicates the first running time-frequency resource and the second running time-frequency resource in the unlicensed spectrum shared; The member base stations of access head base station intercepts received power to judge whether that request sends wireless signal at the first running time-frequency resource, and (if determining that request sends wireless signal), sends the second feeding back signaling at the second running time-frequency resource.Multiple adjacent base stations that the solution of the present invention can effectively avoid LAA to communicate interfering with each other, improves communication efficiency.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the collaborative flow chart in base station according to an embodiment of the invention;
Fig. 2 shows the schematic diagram of running time-frequency resource position according to an embodiment of the invention;
Fig. 3 shows the schematic diagram of running time-frequency resource position according to still another embodiment of the invention;
Fig. 4 shows the schematic diagram of the 3rd feeding back signaling according to an embodiment of the invention;
Fig. 5 shows the structured flowchart of the processing unit in member base stations according to an embodiment of the invention;
Fig. 6 shows the structured flowchart of the processing unit in head base station according to an embodiment of the invention;
Embodiment
Hereafter will be described in further detail technical scheme of the present invention by reference to the accompanying drawings, and it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Embodiment 1
Embodiment 1 illustrates the collaborative flow chart in base station, as shown in Figure 1.In accompanying drawing 1, base station N1 and base station N2 belongs to same base station bunch, and the synchronisation source of base station N1 to be a base station and base station N1 be described base station bunch, base station N2 is member base stations, and base station N2 is the serving BS of UEU3.Wherein step S22 is optional step.
For base station N1, in step s 11, send the first feeding back signaling and indicate the first running time-frequency resource and the second running time-frequency resource; In step s 12, receiving target signaling set on the second running time-frequency resource, the set of described target signaling comprises K target signaling, and wherein 1 target signaling is the second feeding back signaling, and described K is positive integer; In step s 13, send the 3rd feeding back signaling indicating target group of base stations and send on first carrier, in described target BS group, at least comprise base station N2.
For base station N2, in the step s 21, receive the first feeding back signaling and determine the first running time-frequency resource and the second running time-frequency resource; In step S22, at the first running time-frequency resource monitoring reception power (i.e. the power of Received signal strength); In step S23, the second running time-frequency resource sends the second feeding back signaling; In step s 24 which, receive the 3rd feeding back signaling to determine to send on first carrier; In step s 25, the 3rd running time-frequency resource on first carrier sends downstream wireless signals to UEU3.
In embodiment 1, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, first carrier is deployed in unlicensed spectrum, second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, all base stations in described base station bunch keep zero transmitted power at the first running time-frequency resource.Described received power is lower than specific threshold, and described specific threshold is that pre-determining or base station N2 determine voluntarily or is configured by base station N1
In embodiment 1, the first running time-frequency resource and the second running time-frequency resource are orthogonal in time.
Sub-embodiment 1, second feeding back signaling as embodiment 1 comprises characteristic sequence, and the index of described characteristic sequence in optional sequence pond is by the real-time Stochastic choice of base station N2.Base station N1 determines described target BS group according to described K each self-corresponding index of target signaling according to fair principle.As an embodiment of described fair principle, described target BS group only comprises 1 base station.Described 1 base station is the transmission base station corresponding to minimum value in described K the corresponding index of target signaling.
Sub-embodiment 2, second feeding back signaling as embodiment 1 comprises characteristic sequence, and the index of described characteristic sequence in optional sequence pond is configured by base station N1.Base station N1 determines described target BS group according to described K each self-corresponding index of target signaling according to fair principle.As an embodiment of described fair principle, described target BS group comprises transmission base station corresponding to described K target signaling.Base station in described target BS group on average configures available resources.
As the sub-embodiment 3 of embodiment 1, described time-domain resource is used for dispatching transmission of wireless signals on a second carrier by base station N1.
As the sub-embodiment 4 of embodiment 1, described target BS group also comprises base station N1.Base station N1 does not need to send feeding back signaling in the second running time-frequency resource, only needs to determine described target BS group according to fair principle.
Embodiment 2
Embodiment 2 illustrates the position view of the described running time-frequency resource in the present invention, as shown in Figure 2.In accompanying drawing 2, the grid of oblique line mark is the first running time-frequency resource, and the grid of backslash mark is the second running time-frequency resource, and the grid of thick line mark is the 3rd running time-frequency resource.
In embodiment 2, before the second running time-frequency resource is positioned at the first running time-frequency resource in time, the 3rd running time-frequency resource occupies the bandwidth of whole first carrier on frequency domain.
As the sub-embodiment 1 of embodiment 2, in the described target BS group in the present invention, only include 1 base station.
Sub-embodiment 2, first feeding back signaling as embodiment 2 is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
Embodiment 3
Embodiment 3 illustrates the position view of the described running time-frequency resource in another the present invention, as shown in Figure 3.In accompanying drawing 3, the grid of oblique line mark is the first running time-frequency resource, and the grid of backslash mark is the second running time-frequency resource, and the grid of thick line mark is the 3rd running time-frequency resource.
In embodiment 3, before the first running time-frequency resource is positioned at the second running time-frequency resource in time, the 3rd running time-frequency resource occupies the fractional bandwidth of first carrier on frequency domain.
As the sub-embodiment of embodiment 3, the described target BS group in the present invention comprises not only 1 base station.
Embodiment 4
Embodiment 4 illustrates the schematic diagram of the 3rd feeding back signaling, as shown in Figure 4.In accompanying drawing 4, the grid of thick line mark is the running time-frequency resource for downlink transfer of the 3rd feeding back signaling implicit assignment.
3rd feeding back signaling comprises N number of community ID, is the first community ID respectively, the second community ID ..., N community ID.Described community ID is positive integer, the running time-frequency resource for downlink transfer that the maintenance base station of described community ID is distributed determines the corresponding R1 running time-frequency resource of the-the first community ID by the position implicit expression of described community ID in the 3rd feeding back signaling, the corresponding R2 running time-frequency resource of second community ID, ..., the corresponding RN running time-frequency resource of N community ID.
Described N is configured by the transmission base station of the 3rd feeding back signaling, or the constant of pre-determining.
Embodiment 5
Embodiment 5 illustrates the structured flowchart of the processing unit in member base stations, as shown in Figure 5.In accompanying drawing 5, processing unit 300 is by receiver module 301, and sending module 302, receiver module 303 and sending module 304 form.
Receiver module 301 determines the first running time-frequency resource and the second running time-frequency resource for receiving the first feeding back signaling; Sending module 302 for sending the second feeding back signaling on the second running time-frequency resource; Receiver module 303 is determined to send on first carrier for receiving the 3rd feeding back signaling; Sending module 304 sends downstream wireless signals on the 3rd running time-frequency resource on first carrier.
In embodiment 5, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
Sub-embodiment 1, first feeding back signaling as embodiment 5 is the synchronizing sequence periodically sent, and described synchronizing sequence is used for the reference synchronization as base station bunch.First running time-frequency resource and the second running time-frequency resource are indicated by described synchronizing sequence implicit expression, and namely the first running time-frequency resource and the second running time-frequency resource are pre-determining relative to the time-frequency location of described synchronizing sequence.
As sub-embodiment 2, first feeding back signaling explicit instruction first running time-frequency resource of embodiment 5 and the position of the second running time-frequency resource.
Sub-embodiment 3, first feeding back signaling as embodiment 5 is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
Embodiment 6
Embodiment 6 illustrates the structured flowchart of the processing unit in a base station, as shown in Figure 6.In accompanying drawing 6, processing unit 400 is by sending module 401, and receiver module 402 and sending module 403 form.
Sending module 401 indicates the first running time-frequency resource and the second running time-frequency resource for sending the first feeding back signaling; Receiver module 402 is for receiving target signaling set on the second running time-frequency resource, and the set of described target signaling comprises K target signaling, and wherein 1 target signaling is the second feeding back signaling, and described K is positive integer; Sending module 403 sends on first carrier for sending the 3rd feeding back signaling indicating target group of base stations, at least comprises the transmission base station of the second feeding back signaling in described target BS group.
In embodiment 6, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.Described target signaling is the counterpart of the second feeding back signaling or the second feeding back signaling.
Sub-embodiment 1, first feeding back signaling as embodiment 6 is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
As the sub-embodiment 2 of embodiment 6, described target BS group also comprises the transmission base station of the first feeding back signaling.
The all or part of step that one of ordinary skill in the art will appreciate that in said method can be carried out instruction related hardware by program and complete, and described program can be stored in computer-readable recording medium, as read-only memory, and hard disk or CD etc.Optionally, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Accordingly, each modular unit in above-described embodiment, can adopt example, in hardware to realize, and also can be realized by the form of software function module, the application is not limited to the combination of the software and hardware of any particular form.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improves, all should be included within protection scope of the present invention.
Claims (12)
1. the method in base station, is characterized in that, comprises the steps:
-steps A. receive the first feeding back signaling and determine the first running time-frequency resource and the second running time-frequency resource
-step B. sends the second feeding back signaling on the second running time-frequency resource.
Wherein, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
2. method according to claim 1, is characterized in that, also comprises the steps:
-step C. receives the 3rd feeding back signaling and determines to send on first carrier
Three running time-frequency resource of-step D. on first carrier sends downstream wireless signals.
3. according to claim 1, the method described in 2, is characterized in that, described characteristic sequence is one in optional sequence pond, and the index of described characteristic sequence in described optional sequence pond is one of following:
-. option one: by the real-time Stochastic choice in described base station
-. option two: configured by the transmission base station of the first feeding back signaling.
4. the method according to claim 1-3, it is characterized in that, first feeding back signaling is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
5. the method in base station, is characterized in that, comprises the steps:
-steps A. send the first feeding back signaling and indicate the first running time-frequency resource and the second running time-frequency resource
-step B. is the set of receiving target signaling on the second running time-frequency resource, and the set of described target signaling comprises K target signaling, and wherein 1 target signaling is the second feeding back signaling, and described K is positive integer.
Wherein, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
6. method according to claim 5, is characterized in that, also comprises the steps:
-step C. sends the 3rd feeding back signaling indicating target group of base stations and sends on first carrier, at least comprises the transmission base station of the second feeding back signaling in described target BS group.
7. according to claim 5, the method described in 6, is characterized in that, described characteristic sequence is one in optional sequence pond, and the index of described characteristic sequence in described optional sequence pond is one of following:
-. option one: by the transmission base station real-time Stochastic choice of the second feeding back signaling
-. option two: configured by described base station.
8. the method according to claim 5-7, it is characterized in that, first feeding back signaling is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
9. a base station equipment, is characterized in that, this equipment comprises:
First module: determine the first running time-frequency resource and the second running time-frequency resource for receiving the first feeding back signaling
Second module: for sending the second feeding back signaling on the second running time-frequency resource
3rd module: determine to send on first carrier for receiving the 3rd feeding back signaling
Four module: send downstream wireless signals on the 3rd running time-frequency resource on first carrier.
Wherein, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
10. equipment according to claim 9, it is characterized in that, first feeding back signaling is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
11. 1 kinds of base station equipments, is characterized in that, this equipment comprises:
First module: indicate the first running time-frequency resource and the second running time-frequency resource for sending the first feeding back signaling
Second module: for receiving target signaling set on the second running time-frequency resource, the set of described target signaling comprises K target signaling, and wherein 1 target signaling is the second feeding back signaling, and described K is positive integer
3rd module: sending on first carrier for sending the 3rd feeding back signaling indicating target group of base stations, at least comprising the transmission base station of the second feeding back signaling in described target BS group.
Wherein, first running time-frequency resource and the second running time-frequency resource are all positioned at first carrier, and first carrier is deployed in unlicensed spectrum, and the second feeding back signaling comprises { characteristic sequence, information bit } in one or two kinds, described base station keeps zero transmitted power at the first running time-frequency resource.
12. equipment according to claim 11, it is characterized in that, first feeding back signaling is broadcast signaling, and the reception base station of the first feeding back signaling keeps zero transmitted power in the first running time-frequency resource, and the second running time-frequency resource is by the reception base station code division multiplexing of the first feeding back signaling.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910270987.1A CN110099385B (en) | 2014-09-10 | 2014-09-10 | Authorized spectrum auxiliary access communication method and device in cellular network |
| CN201410459310.XA CN105472623B (en) | 2014-09-10 | 2014-09-10 | A kind of authorization frequency spectrum in Cellular Networks assists access communications method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459310.XA CN105472623B (en) | 2014-09-10 | 2014-09-10 | A kind of authorization frequency spectrum in Cellular Networks assists access communications method and apparatus |
Related Child Applications (1)
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| CN108616343A (en) * | 2017-01-23 | 2018-10-02 | 上海朗帛通信技术有限公司 | It is a kind of for the UE in wirelessly communicating, the method and apparatus in base station |
| WO2020001541A1 (en) * | 2018-06-29 | 2020-01-02 | 中国移动通信有限公司研究院 | Transmit power indication method, transmit power receiving method, network device, and access device |
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| CN103580840A (en) * | 2012-08-10 | 2014-02-12 | 捷讯研究有限公司 | TD LTE secondary component carrier in unlicensed bands |
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| US8693431B2 (en) * | 2011-09-14 | 2014-04-08 | Qualcomm Incorporated | Methods and apparatus for interference based joint scheduling of peer to peer links with WWAN |
| CN106230542B (en) * | 2012-03-01 | 2020-08-25 | 华为技术有限公司 | Method and device for interference coordination |
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| CN103580840A (en) * | 2012-08-10 | 2014-02-12 | 捷讯研究有限公司 | TD LTE secondary component carrier in unlicensed bands |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108616343A (en) * | 2017-01-23 | 2018-10-02 | 上海朗帛通信技术有限公司 | It is a kind of for the UE in wirelessly communicating, the method and apparatus in base station |
| CN108616343B (en) * | 2017-01-23 | 2020-10-02 | 上海朗帛通信技术有限公司 | Method and device for UE (user equipment) and base station in wireless communication |
| WO2020001541A1 (en) * | 2018-06-29 | 2020-01-02 | 中国移动通信有限公司研究院 | Transmit power indication method, transmit power receiving method, network device, and access device |
| US11523352B2 (en) | 2018-06-29 | 2022-12-06 | China Mobile Communication Co., Ltd Research Institute | Transmit power indication method, transmit power receiving method, network device and access device |
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| CN110099385B (en) | 2023-03-14 |
| CN110099385A (en) | 2019-08-06 |
| CN105472623B (en) | 2019-07-09 |
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