CN105208663A - Scheduling method and apparatus for unlicensed spectrum communication - Google Patents
Scheduling method and apparatus for unlicensed spectrum communication Download PDFInfo
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- CN105208663A CN105208663A CN201410255478.9A CN201410255478A CN105208663A CN 105208663 A CN105208663 A CN 105208663A CN 201410255478 A CN201410255478 A CN 201410255478A CN 105208663 A CN105208663 A CN 105208663A
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Abstract
The invention provides a scheduling method and an apparatus for unlicensed spectrum communication. As an embodiment, the method includes: step 1, a first signaling is sent to indicate a first resource pool by a base station; step 2, a second signaling is sent to schedule a target subframe of a target carrier wave; step 3, physical layer data in the target subframe is processed, wherein the first resource pool comprises K groups of resource fragments, the target carrier wave is deployed at unlicensed spectrum, the resource fragments are K1 continuous symbols in the time domain, and the base station maintains zero power in the first resource pool. According to the scheme, LTE equipment of different service providers can detect mutual interferences; the LTE equipment can intercept interference sources in a TDM manner when sending the physical layer data at a plurality of continuous subframes, and DFS operation is performed in time; besides, the method and the apparatus are compatible with the conventional LTE standard as much as possible, and the compatibility is good.
Description
Technical field
The present invention relates in wireless communication system the scheme utilizing unlicensed spectrum to communicate, particularly relate to the communication means for unlicensed spectrum (UnlicensedSpectrum) based on LTE (LongTermEvolution, Long Term Evolution) and device.
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 Pcell (PrimaryCell, main plot), be deployed in Serving cell in unlicensed spectrum as Scell (SecondaryCell, auxiliary community).
For unlicensed spectrum, consider its interference level uncontrollable/prediction, LTE may adopt LBT (ListenBeforeTalk first intercepts rear transmission) to avoid interference in unlicensed spectrum.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.In addition, in order to avoid causing interference to the such as radar signal in unlicensed spectrum, LTE equipment may apply DFS (DynamicFrequencySelection, dynamic frequency selection) technology, namely dynamic from multiple candidate carrier selective channel quality meet the carrier wave of demand for signal transmission.
For the communication of LTE unlicensed spectrum, one need the problem solved be how to arrange for monitor whether unlicensed spectrum exist interference source intercept time slot.One intuitively idea be arrange in fixing position to intercept time slot (first symbol of such as each subframe), but this idea has following problem: if the LTE equipment of Liang Ge operator performs LBT on same carrier wave, then the signal of the other side cannot be detected each other.For the problems referred to above, the invention discloses dispatching method and the device of a kind of unlicensed spectrum communication.
Summary of the invention
The invention discloses a kind of method in base station, wherein, comprise the steps:
-send the first signaling, the first signaling instruction first resource pond
-send the second signaling, the target-subframe of the second signaling scheduling target carrier
-in the described target-subframe of described target carrier, process physical layer data according to the scheduling of the second signaling
Wherein, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described process be send and the second signaling is descending scheduling signaling, or described process be receive and the second signaling is uplink scheduling signaling, described K1 is positive integer, and described K is positive integer, and described N is positive integer, and described base station keeps zero energy in first resource pond.
Described symbol is OFDM (OrthogonalFrequencyDivisionMultiplexing, OFDM) symbol or SC-FDMA (SingleCarrier-FrequencyDivisionMultipleAccess, single-carrier frequency division multiple access) symbol.A subframe comprises 12 or 14 described symbols.First signaling is physical layer signaling or high-level signaling.Second signaling is physical layer signaling or high-level signaling.Described descending scheduling signaling refers to the signaling for dispatching downlink transfer of data; Described uplink scheduling signaling refers to the signaling for dispatching uplink transfer of data.As an embodiment, described descending scheduling signaling is DCI (DownlinkControlInformation, Downlink Control Information) form { 1,1A, 1B, 1C, 1D, the one in 2,2A, 2B, 2C, 2D}.As another embodiment, described uplink scheduling signaling is the DCI format { one in 0,4}.
As an embodiment, the multiple subframe of the second signaling scheduling, comprising described target-subframe.As an embodiment, described K1 is 1.As another embodiment, described K1 is 2.As an embodiment, described N is the integral multiple of 10.As an embodiment, described K group resource sheet is distributed with M kind candidate pattern in time domain, and described M kind candidate pattern is pre-determining, the first signaling indicate a kind of candidate pattern in described M kind candidate pattern index, described M be greater than 1 positive integer.As an embodiment, described physical layer data comprises the DMRS (DemodulationReferenceSignal, demodulated reference signal) for channel estimating.As another embodiment, described physical layer data comprises the CSI-RS (ChannelStatusIndicator-ReferenceSignal, channel status instruction reference signal) for channel quality detection.As another embodiment, described physical layer data comprises SRS (SoundingReferenceSignal, interception reference signal).
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-intercepting in time slot in described target carrier detects one in { received signal power, characteristic sequence } or two kinds.
Wherein, intercept time slot described in time domain, belong to first resource pond.
Described characteristic sequence is for identifying LTE equipment, and whether make described base station can distinguish interference source is LTE equipment.As an embodiment, described characteristic sequence is ZC (Zad-OffChu) sequence.As another embodiment, described characteristic sequence is pseudo random sequence.As another embodiment, described characteristic sequence comprises a ZC sequence and a pseudo random sequence.As an embodiment, described in intercept time slot and comprise K group and intercept resource, described K group is intercepted resource in time domain, is belonged to described K group resource sheet respectively.As a sub-embodiment of above-described embodiment, to intercept resource described in one group be the part time-domain resource-remaining time-domain resource in the resource sheet of its correspondence in time domain switches for the sending/receiving of such as radio circuit.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-in described target carrier, receiving the 3rd signaling, the 3rd signaling instruction Secondary resource pond, the 3rd signaling is broadcast signaling
Wherein, Secondary resource pond comprises the described resource sheet of K group, have at least in first resource pond resource sheet described in a group and Secondary resource pond orthogonal in time domain.
Described orthogonal referring to does not have overlap completely in time domain.As an embodiment, first resource pond and Secondary resource pond are orthogonal.
Concrete, according to an aspect of the present invention, it is characterized in that, described K is greater than 1, comprises at most resource sheet described in 1 group in a subframe.
Concrete, according to an aspect of the present invention, it is characterized in that, the first signaling is the broadcast signaling transmitted in described target carrier.
Described broadcast signaling refers to the specific signaling of non-UE.The essence of above-mentioned aspect is, the communication equipment monitoring other operators of described target carrier can receive the first signaling and obtain described base station intercept time slot, and then can adjust described communication equipment intercept time slot.
Concrete, according to an aspect of the present invention, it is characterized in that, the first signaling is physical layer signaling and described resource sheet is described option one, or the first signaling is high-level signaling and described resource sheet is described option two.
Concrete, according to an aspect of the present invention, it is characterized in that, the first signaling comprise following one of at least:
-ZC sequence
-pseudo random sequence
-information bit.
As an embodiment, described ZC sequence is PSS (Primarysynchronizationsignal, master sync signal).Implement Lee as one, described pseudo random sequence is SSS (Secondarysynchronizationsignal, auxiliary synchronous signals).
Concrete, according to an aspect of the present invention, it is characterized in that, a described K1 continuous symbol belongs to a subframe, a described K1 continuous symbol and the symbol comprising DMRS (DemodulationReferenceSignal, demodulated reference signal) are orthogonal in time domain.
Namely a described K1 continuous symbol is the symbol of the non-DMRS in a subframe.
Above-mentioned aspect avoids amendment DMRS, ensure that the compatibility with existing system.
The invention discloses a kind of method in base station, wherein, comprise the steps:
-in target carrier, receive the first signaling, the first signaling instruction first resource pond
Wherein, the first signaling is broadcast signaling, and first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-in first resource pond, send signal of communication.
As an embodiment, one or more during described signal of communication comprises { ZC sequence, pseudo random sequence, information bit }.As another embodiment, described signal of communication is the non-vanishing signal of the power determined voluntarily by described base station, namely notifies that the transmission base station of the first signaling exists interference source in described target carrier by means of only power.As another embodiment, described signal of communication is physical layer data.
The invention discloses a kind of method in UE, wherein, comprise the steps:
-receive the first signaling, the first signaling instruction first resource pond
-receive the second signaling, the target-subframe of the second signaling scheduling target carrier
-according to scheduling operating physical layer data in the described target-subframe of described target carrier of the second signaling
Wherein, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described operation be receive and the second signaling is descending scheduling signaling, or described operation be send and the second signaling is uplink scheduling signaling, described K1 is positive integer, and described K is positive integer, and described N is positive integer, and described UE keeps zero energy in first resource pond.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-intercepting in time slot in described target carrier detects one in { received signal power, characteristic sequence } or two kinds.
Wherein, intercept time slot described in time domain, belong to first resource pond.
Concrete, according to an aspect of the present invention, it is characterized in that, described K is greater than 1, comprises at most resource sheet described in 1 group in a subframe.
Concrete, according to an aspect of the present invention, it is characterized in that, the first signaling is the broadcast signaling transmitted in described target carrier.
Concrete, according to an aspect of the present invention, it is characterized in that, the first signaling is physical layer signaling and described resource sheet is described option one, or the first signaling is high-level signaling and described resource sheet is described option two.
Concrete, according to an aspect of the present invention, it is characterized in that, the first signaling comprise following one of at least:
-ZC sequence
-pseudo random sequence
-information bit
Concrete, according to an aspect of the present invention, it is characterized in that, a described K1 continuous symbol belongs to a subframe, and a described K1 continuous symbol is orthogonal with the symbol comprising DMRS in time domain.
The invention discloses a kind of base station equipment, it is characterized in that, this equipment comprises:
First module: for sending the first signaling, the first signaling instruction first resource pond
Second module: for sending the second signaling, the target-subframe of the second signaling scheduling target carrier
3rd module: process physical layer data for the scheduling according to the second signaling in the described target-subframe of described target carrier
Four module: detect one in { received signal power, characteristic sequence } or two kinds for intercepting in time slot in described target carrier
Wherein, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described process be send and the second signaling is descending scheduling signaling, or described process be receive and the second signaling is uplink scheduling signaling, described K1 is positive integer, and described K is positive integer, and described N is positive integer, and described base station keeps zero energy in first resource pond.Described time slot of intercepting belongs to first resource pond in time domain.
As an embodiment, the said equipment also comprises:
5th module: for receiving the 3rd signaling in described target carrier, the 3rd signaling instruction Secondary resource pond, the 3rd signaling is broadcast signaling
Wherein, Secondary resource pond comprises the described resource sheet of K group, have at least in first resource pond resource sheet described in a group and Secondary resource pond orthogonal in time domain.
The invention discloses a kind of base station equipment, it is characterized in that, this equipment comprises:
First module: for receiving the first signaling in target carrier, the first signaling instruction first resource pond
Second module: for sending signal of communication in first resource pond
Wherein, the first signaling is broadcast signaling, and first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe.
The invention discloses a kind of subscriber equipment, it is characterized in that, this equipment comprises:
First module: for receiving the first signaling, the first signaling instruction first resource pond
Second module: for receiving the second signaling, the target-subframe of the second signaling scheduling target carrier
3rd module: for according to the scheduling of the second signaling operating physical layer data in the described target-subframe of described target carrier
Wherein, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described operation be receive and the second signaling is descending scheduling signaling, or described operation be send and the second signaling is uplink scheduling signaling, described K1 is positive integer, and described K is positive integer, and described N is positive integer, and described UE keeps zero energy in first resource pond.
As an embodiment, the feature of the said equipment is, this equipment also comprises:
Four module: detect one in { received signal power, characteristic sequence } or two kinds for intercepting in time slot in described target carrier.
Wherein, intercept time slot described in time domain, belong to first resource pond.
For in the communication of LTE unlicensed spectrum for monitoring the offering question of intercepting time slot of interference source, the present invention proposes a kind of unlicensed spectrum communication dispatching method and device.The solution of the present invention can guarantee that the LTE equipment of different operators detects interference each other mutually.In addition, when the solution of the present invention guarantees that LTE equipment sends physical layer data in multiple continuous subframes, interference source can be intercepted in the mode of TDM (TimeDivisionMultiplexing, time division multiplexing), perform DFS operation in time.In addition, existing LTE standard that the present invention is compatible as far as possible, has good compatibility.
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 flow chart of transmission downlink physical layer data according to an embodiment of the invention;
Fig. 2 shows the flow chart of transmission ascending physical signal layer data according to an embodiment of the invention;
Fig. 3 shows the flow chart that base station according to an embodiment of the invention sends signal of communication;
Fig. 4 shows the distribution map in first resource pond according to an embodiment of the invention and Secondary resource pond;
Fig. 5 shows the schematic diagram that resource sheet according to an embodiment of the invention is the symbol that the cycle occurs;
Fig. 6 shows the schematic diagram of resource sheet according to an embodiment of the invention in transmitting data in physical layer subframe;
Fig. 7 shows the schematic diagram that can be set to the symbol of resource sheet according to an embodiment of the invention;
Fig. 8 shows the structured flowchart of the processing unit in base station according to an embodiment of the invention;
Fig. 9 shows the structured flowchart of the processing unit in UE according to an embodiment of the invention;
Figure 10 shows the structured flowchart of the processing unit in base station according to still another 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 flow chart of transmission downlink physical layer data, as shown in Figure 1.In accompanying drawing 1, base station N1 is the serving BS of UEU2.Wherein S10 and S14 is optional step.
For base station N1, in step s 11, send the first signaling, the first signaling instruction first resource pond; In step s 12, send the second signaling, the target-subframe of the second signaling scheduling target carrier; In the described target-subframe of described target carrier, physical layer data is sent in step s 13 according to the scheduling of the second signaling.
For UEU2, in the step s 21, receive the first signaling, the first signaling instruction first resource pond; In step S22, receive the second signaling, the target-subframe of the second signaling scheduling target carrier; In step S23, the scheduling according to the second signaling receives physical layer data in the described target-subframe of described target carrier.
In embodiment 1, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Second signaling is descending scheduling signaling, and described K1 is positive integer, and described K is positive integer, and described N is positive integer, and base station N1 and UEU2 all keeps zero energy in first resource pond.
As the sub-embodiment 1 of embodiment 1, in step slo, base station N1 receives the 3rd signaling that base station N0 sends, the 3rd signaling instruction Secondary resource pond.Wherein, Secondary resource pond comprises the described resource sheet of K group, have at least in first resource pond resource sheet described in a group and Secondary resource pond orthogonal in time domain.
As the sub-embodiment 2 of embodiment 1, in step S14, N1 intercepting in time slot in described target carrier in base station detects received signal power.Wherein, intercept time slot described in time domain, belong to first resource pond.If received signal power is greater than specific threshold, base station N1 determines that described target carrier exists interference source; If received signal power is not more than described specific threshold, base station N1 determines that described target carrier does not exist interference source.Described specific threshold is pre-determining or configurable.
As the sub-embodiment 3 of embodiment 1, in step S14, N1 intercepting in time slot in described target carrier in base station detects received signal power and characteristic sequence, described in intercept time slot in time domain, belong to first resource pond.The method detecting received signal power and characteristic sequence is as follows:
For Received signal strength y, base station N1 first according to relevant detect (CoherentDetection) or incoherent detection (NonCoherentDetection) detect described in intercept in time slot whether existing characteristics sequence:
If-not detecting characteristic sequence, base station N1 is at detection received signal power | y|
2if, | y|
2be greater than specific threshold, base station N1 determines the interference source described target carrier existing non-LTE equipment, if | y|
2be not more than described specific threshold, base station N1 determines that described target carrier does not exist interference source.
If-detecting characteristic sequence s, base station N1 determines the interference source described target carrier existing LTE system; Base station N1 detects dump power further | y|
2-| s|
2if described dump power is greater than specific threshold, base station N1 determines the interference source described target carrier existing non-LTE equipment, if described dump power is not more than described specific threshold, base station N1 determines that described target carrier does not exist interference source.
Above-mentioned specific threshold is pre-determining or configurable.
Sub-embodiment 4, first signaling as embodiment 1 comprise following one of at least:
-ZC sequence
-pseudo random sequence
-information bit.
Embodiment 2
Embodiment 2 illustrates the flow chart of transmission ascending physical signal layer data, as shown in Figure 2.In accompanying drawing 2, base station N3 is the serving BS of UEU4.
For base station N3, in step S31, send the first signaling, the first signaling instruction first resource pond; In step s 32, send the second signaling, the target-subframe of the second signaling scheduling target carrier; In the described target-subframe of described target carrier, physical layer data is received according to the scheduling of the second signaling in step S33.
For UEU4, in step S41, receive the first signaling, the first signaling instruction first resource pond; In step S42, receive the second signaling, the target-subframe of the second signaling scheduling target carrier; In step S43, the scheduling according to the second signaling sends physical layer data in the described target-subframe of described target carrier.
In embodiment 2, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Second signaling is uplink scheduling signaling, and described K1 is positive integer, and described K is positive integer, and described N is positive integer, and base station N3 and UEU4 all keeps zero energy in first resource pond.
As the sub-embodiment 1 of embodiment 2, described K is greater than 1, comprises at most resource sheet described in 1 group in a subframe.
Sub-embodiment 2, first signaling as embodiment 2 is the broadcast signaling transmitted in described target carrier.
Sub-embodiment 3, first signaling as embodiment 2 is physical layer signaling and described resource sheet is described option one.
Sub-embodiment 4, first signaling as embodiment 2 is high-level signaling and described resource sheet is described option two.
Embodiment 3
Embodiment 3 illustrates the flow chart that base station sends signal of communication, as shown in Figure 3.In accompanying drawing 3, base station N5 and base station N6 is adjacent base station.
For base station N5, in step s 51, send the first signaling, the first signaling instruction first resource pond; In step S52, intercepting in time slot in described target carrier detects one in { received signal power, characteristic sequence } or two kinds.
For base station N6, in step S61, target carrier receives the first signaling, the first signaling instruction first resource pond; In step S62, in first resource pond, send signal of communication.
In embodiment 3, the first signaling is broadcast signaling, and first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Described K1 is positive integer, and described K is positive integer, and described N is positive integer, and described base station keeps zero energy in first resource pond.Described time slot of intercepting belongs to first resource pond in time domain.
As the sub-embodiment 1 of embodiment 3, described signal of communication is physical layer data, and base station N5 detects received signal power and determines whether there is interference source in step S52.
As the sub-embodiment 2 of embodiment 3, described signal of communication is characteristic sequence, and base station N5 detects characteristic sequence and determines whether there is LTE system interference source in step S52, detects received signal power and determines whether there is non-LTE system interference source.
Embodiment 4
Embodiment 4 illustrates the distribution map in first resource pond and Secondary resource pond, as shown in Figure 4.In accompanying drawing 4, oblique line grid is the resource sheet in first resource pond, and backslash grid is the resource sheet in Secondary resource pond.
For base station, first in target carrier, receive the 3rd signaling, the 3rd signaling instruction Secondary resource pond, the 3rd signaling is physical-layer broadcasts signaling; Then the first signaling is sent, the first signaling instruction first resource pond.
Wherein, described resource pool comprises K group resource sheet, and the configuration cycle in accompanying drawing 4 is the configurator timing window of resource pool described in the first signaling and the 3rd signal deployment, and comprise L subframe, described L is the positive integer being greater than K.Described target carrier is deployed in unlicensed spectrum.Described resource sheet is K1 continuous symbol in time domain.First signaling is physical-layer broadcasts signaling.Described K1 is positive integer, and described K is positive integer, and described base station keeps zero energy in first resource pond.K the resource sheet in first resource pond distinguishes the oblique line grid of identified 1 ~ K in figure 4, and K the resource sheet in Secondary resource pond distinguishes the backslash grid of identified 1 ~ K in figure 4, and the grid wherein identifying 3 belongs to first resource pond and Secondary resource pond simultaneously.
Embodiment 5
Embodiment 5 illustrates the schematic diagram that resource sheet is the symbol that the cycle occurs, as shown in Figure 5.In accompanying drawing 5, oblique line grid is K1 the continuous symbol in first resource pond.
First resource pond comprises K group resource sheet, and described resource sheet is K1 the continuous symbol occurred in the cycle in time domain, occurs that the cycle is N subframe.In accompanying drawing 5, an oblique line grid is K1 continuous symbol, and the oblique line grid of mark same numbers (1 ~ K) forms resource sheet described in a group.
Embodiment 6
Embodiment 6 illustrates the schematic diagram of resource sheet in transmitting data in physical layer subframe, as shown in Figure 6.In accompanying drawing 6, oblique line grid is the transmission time slot of physical layer data, and blank boxes is K1 continuous symbol in resource sheet.
For base station, first send the first signaling, the first signaling instruction first resource pond; Then the second signaling is sent, the subframe 1 of the second signaling scheduling target carrier; Then in subframe 1, physical layer data is processed.For UE, first receive the first signaling, the first signaling instruction first resource pond; Then the second signaling is received, the subframe 1 of the second signaling scheduling target carrier; Then operating physical layer data in subframe 1.
In embodiment 6, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Subframe 1 comprises resource sheet as described in a group that a described K1 continuous symbol (as shown in blank boxes) belongs to first resource pond, and described physical layer data takies removing in subframe 1 and belongs to the symbol (as shown in the oblique line grid in subframe 1) in first resource pond.Described process be send and described operation be receive and the second signaling is descending scheduling signaling, or described process be receive and described operation be send and the second signaling is uplink scheduling signaling, described K1 is positive integer, described K is positive integer, described N is positive integer, and described base station and described UE keep zero energy in first resource pond.
As the sub-embodiment 1 of embodiment 6, described K1 is 1 or 2.
As the sub-embodiment 2 of embodiment 6, the subframe (such as subframe 2 and subframe 3) not comprising the symbol in first resource pond is compared, and the described physical layer data in subframe 1 adopts the mapping mode of punching (Puncture) or rate-matched (RateMatching).
As the sub-embodiment 3 of embodiment 6, subframe 2 in accompanying drawing 6 and subframe 3 are also all for transmitting physical layer data (oblique line grid), therefore, the invention provides a kind of mechanism, namely LTE equipment also can detect interference source in the middle of multiple continuous subframes of transmission data, and then performs DFS operation in time.
Embodiment 7
Embodiment 7 illustrates the schematic diagram of the symbol that can be set to resource sheet, as shown in Figure 7.Accompanying drawing 7 illustrates a common CP (CyclicPrefix, Cyclic Prefix) PRBP (PhysicalResourceBlockPair of downlink transfer in scene, Physical Resource Block to), the time domain length of a PRBP is a subframe, a lattice is a RE (ResourceElement, resource particle).Its bend grid is the RE that can be used for resource pool, and cross spider grid is the RE for DMRS.
As shown in Figure 7, { 0,1,2,3,4,7,8,9,10,11} can be set to the symbol of resource sheet to the symbol in a subframe.
Embodiment 8
Embodiment 8 illustrates the structured flowchart of the processing unit in base station, as shown in Figure 8.In accompanying drawing 8, processing unit 200 is by receiver module 201, and sending module 202, sending module 203, processing module 204 and monitoring module 205 form.Wherein receiver module 201 is optional modules.
Sending module 202 is for sending the first signaling, and the first signaling indicates first resource pond; Sending module 203 for sending the second signaling, the target-subframe of the second signaling scheduling target carrier; Processing module 204 processes physical layer data for the scheduling according to the second signaling in the described target-subframe of described target carrier; Monitor module 205 and detect one in { received signal power, characteristic sequence } or two kinds for intercepting in time slot in described target carrier.
In embodiment 8, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described process be send and the second signaling is descending scheduling signaling, or described process be receive and the second signaling is uplink scheduling signaling, described K1 is positive integer, described K be greater than 1 positive integer, described N is positive integer.Described time slot of intercepting belongs to first resource pond in time domain, and described base station keeps zero energy in first resource pond.Second signaling is physical layer signaling.
As the sub-embodiment 1 of embodiment 8, processing unit 200 also comprises receiver module 201 for receiving the 3rd signaling in described target carrier, and the 3rd signaling instruction Secondary resource pond, the 3rd signaling is broadcast signaling.Wherein, Secondary resource pond comprises the described resource sheet of K group, have at least in first resource pond resource sheet described in a group and Secondary resource pond orthogonal in time domain.
As the sub-embodiment 2 of embodiment 8, described K1 equals 1 or 2.
Sub-embodiment 3, first signaling as embodiment 8 is ZC sequence or pseudo random sequence.
Embodiment 9
Embodiment 9 illustrates the structured flowchart of the processing unit in UE, as shown in Figure 9.In accompanying drawing 9, processing unit 300 is by receiver module 301, and receiver module 302 and operational module 303 form.
Receiver module 301 is for receiving the first signaling, and the first signaling indicates first resource pond; Receiver module 302 for receiving the second signaling, the target-subframe of the second signaling scheduling target carrier; Operational module 303 is for according to the scheduling of the second signaling operating physical layer data in the described target-subframe of described target carrier.
In embodiment 9, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described operation is reception and the second signaling is descending scheduling signaling, or described operation be send and the second signaling is uplink scheduling signaling, described K1 is positive integer, described K be greater than 1 positive integer, described N is positive integer, and described UE keeps zero energy in first resource pond.
As the sub-embodiment 1 of embodiment 9, described K1 equals 1 or 2.
Sub-embodiment 2, first signaling as embodiment 9 is physical layer signaling and described resource sheet is described option one.
Embodiment 10
Embodiment 10 illustrates the structured flowchart of the processing unit in base station, as shown in Figure 10.In accompanying drawing 10, processing unit 400 is made up of receiver module 401 and sending module 402.
Receiver module 401 for receiving the first signaling in target carrier, and the first signaling indicates first resource pond; Sending module 402 for sending signal of communication in first resource pond.
Wherein, the first signaling is broadcast signaling, and first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe.
Described signal of communication is one in { physical layer data, characteristic sequence, the non-zero power signal determined voluntarily }.
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 (22)
1. the method in base station, wherein, comprises the steps:
-send the first signaling, the first signaling instruction first resource pond
-send the second signaling, the target-subframe of the second signaling scheduling target carrier
-in the described target-subframe of described target carrier, process physical layer data according to the scheduling of the second signaling
Wherein, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described process be send and the second signaling is descending scheduling signaling, or described process be receive and the second signaling is uplink scheduling signaling, described K1 is positive integer, and described K is positive integer, and described N is positive integer, and described base station keeps zero energy in first resource pond.
2. method according to claim 1, is characterized in that, also comprises the steps:
-intercepting in time slot in described target carrier detects one in { received signal power, characteristic sequence } or two kinds.
Wherein, intercept time slot described in time domain, belong to first resource pond.
3. method according to claim 1, is characterized in that, also comprises the steps:
-in described target carrier, receiving the 3rd signaling, the 3rd signaling instruction Secondary resource pond, the 3rd signaling is broadcast signaling.
Wherein, Secondary resource pond comprises the described resource sheet of K group, have at least in first resource pond resource sheet described in a group and Secondary resource pond orthogonal in time domain.
4. method according to claim 1, is characterized in that, described K is greater than 1, comprises at most resource sheet described in 1 group in a subframe.
5. method according to claim 1, is characterized in that, the first signaling is the broadcast signaling transmitted in described target carrier.
6. method according to claim 1, is characterized in that, the first signaling is physical layer signaling and described resource sheet is described option one, or the first signaling is high-level signaling and described resource sheet is described option two.
7. method according to claim 1, is characterized in that, the first signaling comprise following one of at least:
-ZC sequence
-pseudo random sequence
-information bit.
8. method according to claim 1, is characterized in that, a described K1 continuous symbol belongs to a subframe, and a described K1 continuous symbol and the symbol comprising DMRS are orthogonal in time domain.
9. the method in base station, wherein, comprises the steps:
-in target carrier, receive the first signaling, the first signaling instruction first resource pond
Wherein, the first signaling is broadcast signaling, and first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe.
10. method according to claim 9, is characterized in that, also comprises the steps:
-in first resource pond, send signal of communication.
Method in 11. 1 kinds of UE, wherein, comprises the steps:
-receive the first signaling, the first signaling instruction first resource pond
-receive the second signaling, the target-subframe of the second signaling scheduling target carrier
-according to scheduling operating physical layer data in the described target-subframe of described target carrier of the second signaling.
Wherein, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe.
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described operation be receive and the second signaling is descending scheduling signaling, or described operation be send and the second signaling is uplink scheduling signaling, described K1 is positive integer, and described K is positive integer, and described N is positive integer, and described UE keeps zero energy in first resource pond.
12. methods according to claim 11, is characterized in that, also comprise the steps:
-intercepting in time slot in described target carrier detects one in { received signal power, characteristic sequence } or two kinds.
Wherein, intercept time slot described in time domain, belong to first resource pond.
13. methods according to claim 11, is characterized in that, described K is greater than 1, comprise at most resource sheet described in 1 group in a subframe.
14. methods according to claim 11, is characterized in that, the first signaling is the broadcast signaling transmitted in described target carrier.
15. methods according to claim 11, is characterized in that, the first signaling is physical layer signaling and described resource sheet is described option one, or the first signaling is high-level signaling and described resource sheet is described option two.
16. methods according to claim 11, is characterized in that, the first signaling comprise following one of at least:
-ZC sequence
-pseudo random sequence
-information bit.
17. methods according to claim 11, is characterized in that, a described K1 continuous symbol belongs to a subframe, and a described K1 continuous symbol and the symbol comprising DMRS are orthogonal in time domain.
18. 1 kinds of base station equipments, is characterized in that, this equipment comprises:
First module: for sending the first signaling, the first signaling instruction first resource pond
Second module: for sending the second signaling, the target-subframe of the second signaling scheduling target carrier
3rd module: process physical layer data for the scheduling according to the second signaling in the described target-subframe of described target carrier
Four module: detect one in { received signal power, characteristic sequence } or two kinds for intercepting in time slot in described target carrier.
Wherein, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe.
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described process be send and the second signaling is descending scheduling signaling, or described process be receive and the second signaling is uplink scheduling signaling, described K1 is positive integer, and described K is positive integer, and described N is positive integer.Described time slot of intercepting belongs to first resource pond in time domain, and described base station keeps zero energy in first resource pond.
19. equipment according to claim 18, is characterized in that, this equipment also comprises:
5th module: for receiving the 3rd signaling in described target carrier, the 3rd signaling instruction Secondary resource pond, the 3rd signaling is broadcast signaling.
Wherein, Secondary resource pond comprises the described resource sheet of K group, have at least in first resource pond resource sheet described in a group and Secondary resource pond orthogonal in time domain.
20. 1 kinds of base station equipments, is characterized in that, this equipment comprises:
First module: for receiving the first signaling in target carrier, the first signaling instruction first resource pond
Second module: for sending signal of communication in first resource pond.
Wherein, the first signaling is broadcast signaling, and first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe.
21. 1 kinds of subscriber equipmenies, is characterized in that, this equipment comprises:
First module: for receiving the first signaling, the first signaling instruction first resource pond
Second module: for receiving the second signaling, the target-subframe of the second signaling scheduling target carrier
3rd module: for according to the scheduling of the second signaling operating physical layer data in the described target-subframe of described target carrier.
Wherein, first resource pond comprises K group resource sheet, and described target carrier is deployed in unlicensed spectrum.Described resource sheet is one of following in time domain:
-option one .K1 continuous symbol
-option two. K1 the continuous symbol that the cycle occurs, occurs that the cycle is N subframe.
Resource sheet described in one group that has K1 continuous symbol to belong to first resource pond in described target-subframe, described physical layer data takies removing in described subframe and belongs to the symbol in first resource pond.Described operation be receive and the second signaling is descending scheduling signaling, or described operation be send and the second signaling is uplink scheduling signaling, described K1 is positive integer, and described K is positive integer, and described N is positive integer, and described UE keeps zero energy in first resource pond.
22. equipment according to claim 21, is characterized in that, this equipment also comprises:
Four module: detect one in { received signal power, characteristic sequence } or two kinds for intercepting in time slot in described target carrier.
Wherein, intercept time slot described in time domain, belong to first resource pond.
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| CN110505708B (en) | 2023-04-07 |
| CN105208663B (en) | 2020-01-31 |
| CN110505708A (en) | 2019-11-26 |
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