CN110505708A - A kind of dispatching method and device of unlicensed spectrum communication - Google Patents
A kind of dispatching method and device of unlicensed spectrum communication Download PDFInfo
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- CN110505708A CN110505708A CN201910721311.XA CN201910721311A CN110505708A CN 110505708 A CN110505708 A CN 110505708A CN 201910721311 A CN201910721311 A CN 201910721311A CN 110505708 A CN110505708 A CN 110505708A
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Abstract
The invention proposes the dispatching methods and device of a kind of communication of unlicensed spectrum.As one embodiment, base station sends the first signaling instruction first resource pond in step 1；The target-subframe of the second signaling scheduling target carrier is sent in step 2；Physical layer data is handled in the target-subframe in step 3.Wherein, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The resource piece is K1 continuous symbol in the time domain.The base station keeps zero energy in first resource pond.The solution of the present invention can ensure that the LTE equipment of different operators mutually detects mutual interference.In addition, the solution of the present invention ensures that LTE equipment can listen to interference source when sending physical layer data in multiple continuous subframes in a manner of TDM, DFS operation is executed in time.In addition, the present invention has been compatible with existing LTE standard as far as possible, there is good compatibility.
Description
The application is the divisional application of following original application:
-- the applying date of original application: on 06 10th, 2014
-- the application number of original application: 201410255478.9
-- the invention and created name of original application: a kind of dispatching method and device of unlicensed spectrum communication
Technical field
The present invention relates to the schemes that unlicensed spectrum communication is utilized in wireless communication system, more particularly to based on LTE
The communication means for unlicensed spectrum (Unlicensed Spectrum) of (Long Term Evolution, long term evolution)
And device.
Background technique
Traditional 3GPP (3rd Generation Partner Project, third generation cooperative partner program) LTE system
In, data transmission can only occur on authorization frequency spectrum, however as increased dramatically for portfolio, especially in some urban areas,
Authorization frequency spectrum is likely difficult to meet the needs of portfolio.62 plenary sessions of 3GPP RAN discuss a new research topic, i.e.,
The comprehensive research (RP-132085) of unlicensed spectrum, main purpose is the dependent of LTE of the research and utilization in unlicensed spectrum
(Non-standalone) it disposes, so-called dependent refers to that the communication in unlicensed spectrum wants and authorize the service on frequency spectrum small
Area is associated.One intuitive method is that (Carrier Aggregation, carrier wave are poly- by the CA that reuses in existing system as far as possible
Close) concept, that is, be deployed in authorization frequency spectrum on serving cell as Pcell (Primary Cell, main plot), be deployed in non-
Authorize the serving cell on frequency spectrum as Scell (Secondary Cell, secondary cell).
For unlicensed spectrum, it is contemplated that uncontrollable/prediction of its interference level, LTE may in unlicensed spectrum
Using LBT (Listen Before Talk, first listen to and send afterwards) to avoid interference.LBT, that is, base station or UE (User
Equipment, user equipment) reception power in unlicensed spectrum is first listened to before sending signal, if according to described
It receives power determination and does not interfere with source in the unlicensed spectrum, then send signal in the unlicensed spectrum, otherwise not
Send signal.In addition, in order to avoid being interfered to such as radar signal in unlicensed spectrum, LTE equipment possible application DFS
(Dynamic Frequency Selection, dynamic frequency selection) technology dynamically selects letter from multiple candidate carriers
The carrier wave that road quality meets demand is used for transmission signal.
LTE unlicensed spectrum is communicated, a problem to be solved is how to be arranged for monitoring unlicensed spectrum
It is upper to listen to time slot with the presence or absence of interference source.One intuitive idea is that listen to time slot in fixed position setting (such as each
First symbol of subframe), however the idea has following problem: if the LTE equipment of Liang Ge operator is on the same carrier wave
LBT is executed, then can not detect the signal of other side each other.In view of the above-mentioned problems, the invention discloses a kind of unlicensed spectrums to lead to
The dispatching method and device of letter.
Summary of the invention
The invention discloses a kind of methods in base station, wherein includes the following steps:
The first signaling is sent, the first signaling indicates first resource pond
Send the second signaling, the target-subframe of the second signaling scheduling target carrier
Physical layer data is handled in the target-subframe of the target carrier according to the scheduling of the second signaling
Wherein, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The resource piece
It is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer in the target-subframe
Data occupy the symbol for removing in the subframe and belonging to first resource pond.The processing is transmission and the second signaling is descending scheduling
Signaling or it is described processing be receive and the second signaling be uplink scheduling signaling, the K1 is positive integer, and the K is positive integer,
The N is positive integer, and the base station keeps zero energy in first resource pond.
The symbol is OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing
With) symbol either SC-FDMA (Single Carrier-Frequency Division Multiple Access, single carrier
Frequency division multiple access) symbol.It include 12 or 14 symbols in one subframe.First signaling is that physical layer signaling is either high
Layer signaling.Second signaling is physical layer signaling either high-level signaling.The descending scheduling signaling refers to for dispatching downlink number
According to the signaling of transmission；The uplink scheduling signaling refers to the signaling for the transmission of dispatching uplink data.As one embodiment, institute
State descending scheduling signaling be DCI (Downlink Control Information, Downlink Control Information) format 1,1A, 1B,
One of 1C, 1D, 2,2A, 2B, 2C, 2D }.As another embodiment, the uplink scheduling signaling is DCI format { 0,4 }
One of.
As one embodiment, the multiple subframes of the second signaling scheduling, including the target-subframe.Implement as one
Example, the K1 is 1.As another embodiment, the K1 is 2.As one embodiment, the N is 10 integral multiple.As
One embodiment, the K group resource piece in the time domain M kind candidate pattern is distributed with, the M kind candidate pattern is pre-determining
, the first signaling indicates a kind of index of candidate pattern in the M kind candidate pattern, the M be greater than 1 it is just whole
Number.As one embodiment, the physical layer data includes DMRS (the Demodulation Reference for channel estimation
Signal, demodulated reference signal).As another embodiment, the physical layer data includes for channel quality detection
CSI-RS (Channel Status Indicator-Reference Signal, channel status indicate reference signal).As again
One embodiment, the physical layer data include SRS (Sounding Reference Signal, interception reference signal).
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Listening in the target carrier detected in time slot one of { received signal power, characteristic sequence } or
Two kinds.
Wherein, the time slot of listening to belongs to first resource pond in the time domain.
The characteristic sequence enables the base station to distinguish whether interference source is LTE equipment for identifying LTE equipment.
As one embodiment, the characteristic sequence is ZC (Zad-Off Chu) sequence.As another embodiment, the feature sequence
Column are pseudo-random sequences.As another embodiment, the characteristic sequence includes a ZC sequence and a pseudo-random sequence.Make
For one embodiment, the time slot of listening to includes that K group listens to resource, and the K group listens to resource and is belonging respectively to the K in the time domain
Group resource piece.As a sub- embodiment of above-described embodiment, it is its corresponding resource that resource is listened to described in one group in the time domain
Transmission/reception switching of the part time-domain resource-remaining time-domain resource for such as radio circuit in piece.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Third signaling is received in the target carrier, third signaling indicates Secondary resource pond, and third signaling is broadcast letter
It enables
Wherein, Secondary resource pond includes the K group resource piece, resource piece described at least one group and in first resource pond
Two resource pools are orthogonal in the time domain.
It is described it is orthogonal refer to absolutely not be overlapped in the time domain.As one embodiment, first resource pond and Secondary resource
Pond is orthogonal.
Specifically, according to an aspect of the present invention, which is characterized in that the K is greater than 1, includes up to 1 in a subframe
The group resource piece.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is transmitted in the target carrier
Broadcast signaling.
The broadcast signaling refers to the specific signaling of non-UE.The essence of above-mentioned aspect is its for monitoring the target carrier
The communication equipment of his operator can receive the first signaling and obtain the time slot of listening to of the base station, and then can adjust described logical
Letter equipment listens to time slot.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is physical layer signaling and the resource
Piece is the option one or the first signaling is high-level signaling and the resource piece is the option two.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling includes at least one of:
- ZC sequence
Pseudo-random sequence
Information bit.
As one embodiment, the ZC sequence is PSS (Primary synchronization signal, main synchronization
Signal).As implementation Lee, the pseudo-random sequence be SSS (Secondary synchronization signal, it is auxiliary
Synchronization signal).
Specifically, according to an aspect of the present invention, which is characterized in that the K1 continuous symbol belongs to a subframe,
The K1 continuous symbol and symbol including DMRS (Demodulation Reference Signal, demodulated reference signal)
It is orthogonal in the time domain.
The i.e. described K1 continuous symbol is the symbol of the non-DMRS in a subframe.
Above-mentioned aspect avoids modification DMRS, it is ensured that and the compatibility of existing system.
The invention discloses a kind of methods in base station, wherein includes the following steps:
The first signaling is received in target carrier, the first signaling indicates first resource pond
Wherein, the first signaling is broadcast signaling, and first resource pond includes K group resource piece, and the target carrier is deployed in non-
Authorize frequency spectrum.The resource piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Signal of communication is sent in first resource pond.
As one embodiment, the signal of communication include one of { ZC sequence, pseudo-random sequence, information bit } or
Person is a variety of.As another embodiment, the signal of communication is the signal that the power voluntarily determined by the base station is not zero, i.e.,
Only notify the transmission base station of the first signaling that there are interference sources in the target carrier by power.As another embodiment,
The signal of communication is physical layer data.
The invention discloses a kind of methods in UE, wherein includes the following steps:
The first signaling is received, the first signaling indicates first resource pond
Receive the second signaling, the target-subframe of the second signaling scheduling target carrier
According to the scheduling of the second signaling in the target-subframe of the target carrier operating physical layer data
Wherein, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The resource piece
It is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer in the target-subframe
Data occupy the symbol for removing in the subframe and belonging to first resource pond.The operation is reception and the second signaling is descending scheduling
Signaling or it is described operation be send and the second signaling be uplink scheduling signaling, the K1 is positive integer, and the K is positive integer,
The N is positive integer, and the UE keeps zero energy in first resource pond.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Listening in the target carrier detected in time slot one of { received signal power, characteristic sequence } or
Two kinds.
Wherein, the time slot of listening to belongs to first resource pond in the time domain.
Specifically, according to an aspect of the present invention, which is characterized in that the K is greater than 1, includes up to 1 in a subframe
The group resource piece.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is transmitted in the target carrier
Broadcast signaling.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is physical layer signaling and the resource
Piece is the option one or the first signaling is high-level signaling and the resource piece is the option two.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling includes at least one of:
- ZC sequence
Pseudo-random sequence
Information bit
Specifically, according to an aspect of the present invention, which is characterized in that the K1 continuous symbol belongs to a subframe,
The K1 continuous symbol and symbol including DMRS are orthogonal in the time domain.
The invention discloses a kind of base station equipments, which is characterized in that the equipment includes:
First module: for sending the first signaling, the first signaling indicates first resource pond
Second module: for sending the second signaling, the target-subframe of the second signaling scheduling target carrier
Third module: for handling physics in the target-subframe of the target carrier according to the scheduling of the second signaling
Layer data
4th module: for listening to detection { received signal power, characteristic sequence } in time slot in the target carrier
One of or two kinds
Wherein, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The resource piece
It is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer in the target-subframe
Data occupy the symbol for removing in the subframe and belonging to first resource pond.The processing is transmission and the second signaling is descending scheduling
Signaling or it is described processing be receive and the second signaling be uplink scheduling signaling, the K1 is positive integer, and the K is positive integer,
The N is positive integer, and the base station keeps zero energy in first resource pond.The time slot of listening to belongs to the first money in the time domain
Source pond.
As one embodiment, above equipment further include:
5th module: for receiving third signaling in the target carrier, third signaling indicates Secondary resource pond, third
Signaling is broadcast signaling
Wherein, Secondary resource pond includes the K group resource piece, resource piece described at least one group and in first resource pond
Two resource pools are orthogonal in the time domain.
The invention discloses a kind of base station equipments, which is characterized in that the equipment includes:
First module: for receiving the first signaling in target carrier, the first signaling indicates 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 includes K group resource piece, and the target carrier is deployed in non-
Authorize frequency spectrum.The resource piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: for receiving the first signaling, the first signaling indicates first resource pond
Second module: for receiving the second signaling, the target-subframe of the second signaling scheduling target carrier
Third module: for the scheduling according to the second signaling in the target-subframe of the target carrier operating physical
Layer data
Wherein, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The resource piece
It is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer in the target-subframe
Data occupy the symbol for removing in the subframe and belonging to first resource pond.The operation is reception and the second signaling is descending scheduling
Signaling or it is described operation be send and the second signaling be uplink scheduling signaling, the K1 is positive integer, and the K is positive integer,
The N is positive integer, and the UE keeps zero energy in first resource pond.
As one embodiment, above equipment is characterized in that, the equipment further include:
4th module: for listening to detection { received signal power, characteristic sequence } in time slot in the target carrier
One of or two kinds.
Wherein, the time slot of listening to belongs to first resource pond in the time domain.
For, for monitoring the offering question for listening to time slot of interference source, the present invention proposes in the communication of LTE unlicensed spectrum
A kind of dispatching method and device of unlicensed spectrum communication.The solution of the present invention can ensure the LTE equipment of different operators
Mutually detect mutual interference.In addition, the solution of the present invention ensures that LTE equipment sends the physics number of plies in multiple continuous subframes
According to when can listen to interference source in the mode of TDM (Time Division Multiplexing, be time-multiplexed), in time execute
DFS operation.In addition, the present invention has been compatible with existing LTE standard as far as possible, there is good compatibility.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart of transmission downlink physical layer data according to an embodiment of the invention；
Fig. 2 shows the flow charts 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 and Secondary resource pond according to an embodiment of the invention；
Fig. 5 shows the schematic diagram that resource piece according to an embodiment of the invention is the symbol occurred in the period；
Fig. 6 shows signal of the resource piece according to an embodiment of the invention in transmitting data in physical layer subframe
Figure；
Fig. 7 shows the schematic diagram of the symbol according to an embodiment of the invention that can be arranged to resource piece；
Fig. 8 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Fig. 9 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Figure 10 shows the structural block diagram of the processing unit in base station according to still another embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart of transmission downlink physical layer data, as shown in Fig. 1.In attached drawing 1, base station N1 is
The serving BS of UE U2.Wherein S10 and S14 is optional step.
For base station N1, in step s 11, the first signaling is sent, the first signaling indicates first resource pond；In step S12
In, send the second signaling, the target-subframe of the second signaling scheduling target carrier；In step s 13 according to the scheduling of the second signaling
Physical layer data is sent in the target-subframe of the target carrier.
For UE U2, in the step s 21, the first signaling is received, the first signaling indicates first resource pond；In step S22
In, receive the second signaling, the target-subframe of the second signaling scheduling target carrier；In step S23, according to the scheduling of the second signaling
Physical layer data is received in the target-subframe of the target carrier.
In embodiment 1, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The money
Source piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer in the target-subframe
Data occupy the symbol for removing in the subframe and belonging to first resource pond.Second signaling is descending scheduling signaling, and the K1 is just
Integer, the K are positive integers, and the N is positive integer, and base station N1 and UE U2 keeps zero energy in first resource pond.
As the sub- embodiment 1 of embodiment 1, in step slo, base station N1 receives the third signaling that base station N0 is sent, the
Three signalings indicate Secondary resource pond.Wherein, Secondary resource pond includes the K group resource piece, at least one group in first resource pond
The resource piece and Secondary resource pond are orthogonal in the time domain.
As the sub- embodiment 2 of embodiment 1, in step S14, base station N1 listening in time slot in the target carrier
Detect received signal power.Wherein, the time slot of listening to belongs to first resource pond in the time domain.If received signal power is greater than
Specific threshold, base station N1 determine that there are interference sources in the target carrier；If received signal power is not more than the certain threshold
Value, base station N1 determine that there is no interference sources in the target carrier.The specific threshold is pre-determining or is configurable.
As the sub- embodiment 3 of embodiment 1, in step S14, base station N1 listening in time slot in the target carrier
Detection received signal power and characteristic sequence, the time slot of listening to belong to first resource pond in the time domain.Detection receives signal function
Rate and the method for characteristic sequence are as follows:
For receiving signal y, base station N1 is first according to relevant detection (Coherent Detection) or incoherent inspection
It surveys and is listened to described in (Non Coherent Detection) detection in time slot with the presence or absence of characteristic sequence:
If not detecting characteristic sequence, base station N1 is in detection received signal power | y |2If | y |2Greater than certain threshold
Value, base station N1 determine that there are the interference sources of non-LTE equipment in the target carrier, if | y |2No more than the specific threshold,
Base station N1 determines that there is no interference sources in the target carrier.
If detecting characteristic sequence s, base station N1 determines the interference source in the target carrier there are LTE system；Base station
N1 further detects dump power | y |2-|s|2If the dump power is greater than specific threshold, base station N1 determines the target
There are the interference source of non-LTE equipment on carrier wave, if the dump power is not more than the specific threshold, described in base station N1 is determined
Interference source is not present in target carrier.
Above-mentioned specific threshold is pre-determining or is configurable.
As the sub- embodiment 4 of embodiment 1, the first signaling includes at least one of:
- 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 Fig. 2.In attached drawing 2, base station N3 is
The serving BS of UE U4.
For base station N3, in step S31, the first signaling is sent, the first signaling indicates first resource pond；In step S32
In, send the second signaling, the target-subframe of the second signaling scheduling target carrier；According to the scheduling of the second signaling in step S33
Physical layer data is received in the target-subframe of the target carrier.
For UE U4, in step S41, the first signaling is received, the first signaling indicates first resource pond；In step S42
In, receive the second signaling, the target-subframe of the second signaling scheduling target carrier；In step S43, according to the scheduling of the second signaling
Physical layer data is sent in the target-subframe of the target carrier.
In embodiment 2, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The money
Source piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer in the target-subframe
Data occupy the symbol for removing in the subframe and belonging to first resource pond.Second signaling is uplink scheduling signaling, and the K1 is just
Integer, the K are positive integers, and the N is positive integer, and base station N3 and UE U4 keeps zero energy in first resource pond.
As the sub- embodiment 1 of embodiment 2, the K is greater than 1, include up to 1 group in a subframe described in resource piece.
As the sub- embodiment 2 of embodiment 2, the first signaling is the broadcast signaling transmitted in the target carrier.
As the sub- embodiment 3 of embodiment 2, the first signaling is physical layer signaling and the resource piece is the option one.
As the sub- embodiment 4 of embodiment 2, the first signaling is high-level signaling and the resource piece is the option two.
Embodiment 3
Embodiment 3 illustrates the flow chart that base station sends signal of communication, as shown in Fig. 3.In attached drawing 3, base station N5 and base
The N6 that stands is adjacent base station.
For base station N5, in step s 51, the first signaling is sent, the first signaling indicates first resource pond；In step S52
In, listening in the target carrier detects one of { received signal power, characteristic sequence } or two kinds in time slot.
For base station N6, in step S61, the first signaling is received in target carrier, the first signaling indicates first resource
Pond；In step S62, signal of communication is sent in first resource pond.
In embodiment 3, the first signaling is broadcast signaling, and first resource pond includes K group resource piece, the target carrier deployment
In unlicensed spectrum.The resource piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
The K1 is positive integer, and the K is positive integer, and the N is positive integer, and the base station is kept in first resource pond
Zero energy.The time slot of listening to belongs to first resource pond in the time domain.
As the sub- embodiment 1 of embodiment 3, the signal of communication is physical layer data, and base station N5 is detected in step S52
Received signal power determines whether there is interference source.
As the sub- embodiment 2 of embodiment 3, the signal of communication is characteristic sequence, and base station N5 detects spy in step S52
Sign sequence determines whether there is LTE system interference source, and detection received signal power 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 Fig. 4.In attached drawing 4, oblique line
Grid is the resource piece in first resource pond, and backslash grid is the resource piece in Secondary resource pond.
For base station, third signaling is received first in target carrier, third signaling indicates Secondary resource pond, third signaling
It is physical-layer broadcasts signaling；Then the first signaling is sent, the first signaling indicates first resource pond.
Wherein, the resource pool includes K group resource piece, and the configuration period in attached drawing 4 is that the first signaling and third signaling are matched
The configurator timing window of the resource pool, including L subframe are set, the L is greater than the positive integer of K.The target carrier is deployed in
Unlicensed spectrum.The resource piece is K1 continuous symbol in the time domain.First signaling is physical-layer broadcasts signaling.The K1 is
Positive integer, the K are positive integers, and the base station keeps zero energy in first resource pond.The K resource piece in first resource pond exists
The oblique line grid of 1~K is identified in attached drawing 4 respectively, the K resource piece in Secondary resource pond is identified 1~K respectively in figure 4
Backslash grid, wherein the grid of mark 3 belongs to first resource pond and Secondary resource pond simultaneously.
Embodiment 5
Embodiment 5 illustrates the schematic diagram that resource piece is the symbol occurred in the period, as shown in Fig. 5.In attached drawing 5, oblique line
Grid is the K1 continuous symbol in first resource pond.
First resource pond includes K group resource piece, and the resource piece is the K1 continuous symbol occurred in the period in the time domain, out
The existing period is N subframe.In attached drawing 5, an oblique line grid is K1 continuous symbol, identifies the oblique line grid of same numbers (1~K)
Resource piece described in forming one group.
Embodiment 6
Embodiment 6 illustrates schematic diagram of the resource piece in transmitting data in physical layer subframe, as shown in Fig. 6.Attached drawing 6
In, oblique line grid is the transmission time slot of physical layer data, and blank boxes are K1 continuous symbols in resource piece.
For base station, the first signaling is sent first, and the first signaling indicates first resource pond；Then the second signaling is sent, the
The subframe 1 of two signaling scheduling target carriers；Then physical layer data is handled in subframe 1.For UE, the first letter is received first
It enables, the first signaling indicates first resource pond；Then the second signaling, the subframe 1 of the second signaling scheduling target carrier are received；Then exist
Operating physical layer data in subframe 1.
In embodiment 6, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The money
Source piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
It include that the K1 continuous symbol (shown in blank boxes) belongs to money as described in one group of first resource pond in subframe 1
Source piece, the physical layer data, which occupies, removes the symbol for belonging to first resource pond (such as the oblique line grid institute in subframe 1 in subframe 1
Show).The processing is transmission and the operation is reception and the second signaling is descending scheduling signaling or the processing is to receive
And the operation is transmission and the second signaling is uplink scheduling signaling, the K1 is positive integer, and the K is positive integer, and the N is
Positive integer, the base station and the UE keep zero energy in first resource pond.
As the sub- embodiment 1 of embodiment 6, the K1 is 1 or 2.
It as the sub- embodiment 2 of embodiment 6, and does not include subframe (such as subframe 2 and the son of symbol in first resource pond
Frame 3) it compares, the physical layer data in subframe 1 is using punching (Puncture) or rate-matched (Rate Matching)
Mapping mode.
As the sub- embodiment 3 of embodiment 6, subframe 2 and subframe 3 in attached drawing 6 are also all used for transmission physical layer data (tiltedly
Line grid), therefore, the present invention provides a kind of mechanism, i.e. LTE equipment also can among multiple continuous subframes of transmission data
Interference source is detected, and then executes DFS operation in time.
Embodiment 7
Embodiment 7 illustrates the schematic diagram that can be arranged to the symbol of resource piece, as shown in Fig. 7.Attached drawing 7 illustrates one
PRBP (the Physical Resource of downlink transfer in a common CP (Cyclic Prefix, cyclic prefix) scene
Block Pair, Physical Resource Block to), the time domain length of a PRBP is a subframe, and a lattice is a RE
(Resource Element, resource particle).Its bend grid is the RE that can be used for resource pool, and cross spider grid is to be used for
The RE of DMRS.
As shown in Fig. 7, the symbol { 0,1,2,3,4,7,8,9,10,11 } in a subframe can be arranged to resource piece
Symbol.
Embodiment 8
Embodiment 8 illustrates the structural block diagram of the processing unit in base station, as shown in Fig. 8.In attached drawing 8, processing unit
200 are made of receiving module 201, sending module 202, sending module 203, processing module 204 and monitoring module 205.Wherein connect
Receiving module 201 is optional module.
Sending module 202 indicates first resource pond for sending the first signaling, the first signaling；Sending module 203 is for sending out
Send the second signaling, the target-subframe of the second signaling scheduling target carrier；Processing module 204 according to the scheduling of the second signaling for existing
Physical layer data is handled in the target-subframe of the target carrier；Module 205 is monitored to be used in the target carrier
It listens to and detects one of { received signal power, characteristic sequence } or two kinds in time slot.
In embodiment 8, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The money
Source piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer in the target-subframe
Data occupy the symbol for removing in the subframe and belonging to first resource pond.The processing is transmission and the second signaling is descending scheduling
Signaling or it is described processing be receive and the second signaling be uplink scheduling signaling, the K1 is positive integer, and the K is greater than 1
Positive integer, the N are positive integers.The time slot of listening to belongs to first resource pond in the time domain, and the base station is in first resource pond
Middle holding zero energy.Second signaling is physical layer signaling.
As the sub- embodiment 1 of embodiment 8, processing unit 200 further includes that receiving module 201 is used in the target carrier
Upper reception third signaling, third signaling indicate Secondary resource pond, and third signaling is broadcast signaling.Wherein, Secondary resource pond includes K
The resource piece is organized, resource piece described at least one group and Secondary resource pond are orthogonal in the time domain in first resource pond.
As the sub- embodiment 2 of embodiment 8, the K1 is equal to 1 or 2.
As the sub- embodiment 3 of embodiment 8, the first signaling is ZC sequence or pseudo-random sequence.
Embodiment 9
Embodiment 9 illustrates the structural block diagram of the processing unit in UE, as shown in Fig. 9.In attached drawing 9, processing unit 300
By receiving module 301, receiving module 302 and operation module 303 are formed.
Receiving module 301 indicates first resource pond for receiving the first signaling, the first signaling；Receiving module 302 is for connecing
Receive the second signaling, the target-subframe of the second signaling scheduling target carrier；Operation module 303 according to the scheduling of the second signaling for existing
Operating physical layer data in the target-subframe of the target carrier.
In embodiment 9, first resource pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum.The money
Source piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe
There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer in the target-subframe
Data occupy the symbol for removing in the subframe and belonging to first resource pond.The operation is reception and the second signaling is descending scheduling
Signaling or it is described operation be send and the second signaling be uplink scheduling signaling, the K1 is positive integer, and the K is greater than 1
Positive integer, the N are positive integers, and the UE keeps zero energy in first resource pond.
As the sub- embodiment 1 of embodiment 9, the K1 is equal to 1 or 2.
As the sub- embodiment 2 of embodiment 9, the first signaling is physical layer signaling and the resource piece is the option one.
Embodiment 10
Embodiment 10 illustrates the structural block diagram of the processing unit in base station, as shown in Fig. 10.In attached drawing 10, processing dress
400 are set to be made of receiving module 401 and sending module 402.
Receiving module 401 indicates first resource pond for receiving the first signaling, the first signaling in target carrier；Send mould
Block 402 is for sending signal of communication in first resource pond.
Wherein, the first signaling is broadcast signaling, and first resource pond includes K group resource piece, and the target carrier is deployed in non-
Authorize frequency spectrum.The resource piece is following one in the time domain:
The .K1 continuous symbol of option one
The K1 continuous symbol that the two, period of option occurs, the period occur is N subframe.
The signal of communication is one in { physical layer data, characteristic sequence, the non-zero power signal voluntarily determined }.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of method in base station, wherein include the following steps:
The first signaling is sent, the first signaling indicates first resource pond；
Send the second signaling, the target-subframe of the second signaling scheduling target carrier；
Physical layer data is handled in the target-subframe of the target carrier according to the scheduling of the second signaling；
Wherein, first signaling is physical layer signaling, and first signaling is the broadcast letter transmitted in the target carrier
It enables；The K group resource piece in the time domain be distributed with M kind candidate pattern, the M kind candidate pattern is pre-determining, the first letter
The index for indicating a kind of candidate pattern in the M kind candidate pattern is enabled, the M is greater than 1 positive integer；First resource
Pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum；The resource piece is K1 continuous symbols in the time domain
Number；There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer data in the target-subframe
Occupy the symbol for removing in the subframe and belonging to first resource pond；The processing is transmission and the second signaling is descending scheduling letter
It enables or the processing is reception and the second signaling is uplink scheduling signaling, the K1 is positive integer, and the K is positive integer, institute
Stating N is positive integer, and the base station keeps zero energy in first resource pond.
2. a kind of method in UE, wherein include the following steps:
The first signaling is received, the first signaling indicates first resource pond；
Receive the second signaling, the target-subframe of the second signaling scheduling target carrier；
According to the scheduling of the second signaling in the target-subframe of the target carrier operating physical layer data；
Wherein, first signaling is physical layer signaling, and first signaling is the broadcast letter transmitted in the target carrier
It enables；The K group resource piece in the time domain be distributed with M kind candidate pattern, the M kind candidate pattern is pre-determining, the first letter
The index for indicating a kind of candidate pattern in the M kind candidate pattern is enabled, the M is greater than 1 positive integer；First resource
Pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum；The resource piece is K1 continuous symbols in the time domain
Number；There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer data in the target-subframe
Occupy the symbol for removing in the subframe and belonging to first resource pond；The operation is reception and the second signaling is descending scheduling letter
It enables or the operation is transmission and the second signaling is uplink scheduling signaling, the K1 is positive integer, and the K is positive integer, institute
Stating N is positive integer, and the UE keeps zero energy in first resource pond.
3. a kind of base station equipment, which is characterized in that the equipment includes:
First module: for sending the first signaling, the first signaling indicates first resource pond；
Second module: for sending the second signaling, the target-subframe of the second signaling scheduling target carrier；
Third module: the physics number of plies is handled in the target-subframe of the target carrier for the scheduling according to the second signaling
According to；
4th module: it is detected in { received signal power, characteristic sequence } for listening in time slot in the target carrier
It is one or two kinds of；
Wherein, first signaling is physical layer signaling, and first signaling is the broadcast letter transmitted in the target carrier
It enables；The K group resource piece in the time domain be distributed with M kind candidate pattern, the M kind candidate pattern is pre-determining, the first letter
The index for indicating a kind of candidate pattern in the M kind candidate pattern is enabled, the M is greater than 1 positive integer；First resource
Pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum；The resource piece is K1 continuous symbols in the time domain
Number；There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer data in the target-subframe
Occupy the symbol for removing in the subframe and belonging to first resource pond；The processing is transmission and the second signaling is descending scheduling letter
It enables or the processing is reception and the second signaling is uplink scheduling signaling, the K1 is positive integer, and the K is positive integer, institute
Stating N is positive integer；The time slot of listening to belongs to first resource pond in the time domain, and the base station keeps zero power in first resource pond
Rate.
4. base station equipment according to claim 3 characterized by comprising
5th module: listening in the target carrier detects one of { received signal power, characteristic sequence } in time slot
Or two kinds；
Wherein, the time slot of listening to belongs to first resource pond in the time domain.
5. base station equipment according to claim 3, which is characterized in that the first signaling includes at least one of:
- ZC sequence；
Pseudo-random sequence；
Information bit.
6. base station equipment according to claim 3, which is characterized in that the K1 continuous symbol belongs to a subframe, institute
Stating K1 continuous symbol and the symbol including DMRS is orthogonal in the time domain.
7. a kind of user equipment, which is characterized in that the equipment includes:
First module: for receiving the first signaling, the first signaling indicates first resource pond；
Second module: for receiving the second signaling, the target-subframe of the second signaling scheduling target carrier；
Third module: for the scheduling according to the second signaling in the target-subframe of the target carrier operating physical number of plies
According to；
Wherein, first signaling is physical layer signaling, and first signaling is the broadcast letter transmitted in the target carrier
It enables；The K group resource piece in the time domain be distributed with M kind candidate pattern, the M kind candidate pattern is pre-determining, the first letter
The index for indicating a kind of candidate pattern in the M kind candidate pattern is enabled, the M is greater than 1 positive integer；First resource
Pond includes K group resource piece, and the target carrier is deployed in unlicensed spectrum；The resource piece is K1 continuous symbols in the time domain
Number；There is K1 continuous symbol to belong to resource piece described in one group of first resource pond, the physical layer data in the target-subframe
Occupy the symbol for removing in the subframe and belonging to first resource pond；The operation is transmission and the second signaling is uplink scheduling letter
It enables or the operation is reception and the second signaling is descending scheduling signaling, the K1 is positive integer, and the K is positive integer, institute
Stating N is positive integer；The time slot of listening to belongs to first resource pond in the time domain, and the base station keeps zero power in first resource pond
Rate.
8. user equipment according to claim 7 characterized by comprising
4th module: it is detected in { received signal power, characteristic sequence } for listening in time slot in the target carrier
It is one or two kinds of；
Wherein, the time slot of listening to belongs to first resource pond in the time domain.
9. user equipment according to claim 7, which is characterized in that the first signaling includes at least one of:
- ZC sequence；
Pseudo-random sequence；
Information bit.
10. user equipment according to claim 7, which is characterized in that the K1 continuous symbol belongs to a subframe, institute
Stating K1 continuous symbol and the symbol including DMRS is orthogonal in the time domain.
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| CN109076603B (en) * | 2016-03-28 | 2022-08-19 | 英特尔公司 | Listen before talk for uplink transmissions |
| EP3823409B1 (en) | 2016-05-20 | 2023-08-09 | Telefonaktiebolaget LM Ericsson (publ) | Scheduling multiple subframes in unlicensed spectrum |
| CN110636622B (en) * | 2016-06-06 | 2022-12-27 | 上海朗帛通信技术有限公司 | Method and device in wireless communication |
| WO2017222280A1 (en) * | 2016-06-21 | 2017-12-28 | Samsung Electronics Co., Ltd. | System and method of reducing interruptions for vehicle to vehicle communication |
| CN107682931A (en) * | 2016-08-09 | 2018-02-09 | 深圳市金立通信设备有限公司 | A kind of data communications method and device |
| CN109952727B (en) * | 2017-03-06 | 2021-11-23 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for dynamic scheduling |
| CN108882303B (en) * | 2017-05-08 | 2020-09-25 | 大唐移动通信设备有限公司 | Interference avoidance method and device |
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