CN110035439A - LAA transmission method and device in a kind of Cellular Networks - Google Patents
LAA transmission method and device in a kind of Cellular Networks Download PDFInfo
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- CN110035439A CN110035439A CN201910239013.7A CN201910239013A CN110035439A CN 110035439 A CN110035439 A CN 110035439A CN 201910239013 A CN201910239013 A CN 201910239013A CN 110035439 A CN110035439 A CN 110035439A
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Abstract
The invention proposes the LAA transmission methods and device in a kind of Cellular Networks.UE receives the first signaling and the second signaling in the first subframe and the second subframe respectively；First signaling indicates the first COT on first carrier, and the second signaling triggers the wireless transmission in the target-subframe of first carrier, and the wireless transmission is uplink；UE according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.Wherein, first carrier is deployed in unlicensed spectrum.First signaling is the signaling of the UE COT of the last serving cell for being used to indicate the UE received on first carrier before the target-subframe.First COT occupies K continuous subframes, and the K is positive integer.The invention enables introducing, the later LTE LAA of LBT technology can be compatible with traditional synchronization UL HARQ scheme and traditional RS is semi-statically configured scheme.
Description
The application is the divisional application of following original application:
-- the applying date of original application: on October 23rd, 2014
-- the application number of original application: 201410572505.5
-- the invention and created name of original application: LAA transmission method and device in a kind of Cellular Networks
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 Non- of LTE of the research and utilization in unlicensed spectrum
Standalone (dependent) deployment, so-called Non-standalone refer to that frequency spectrum is wanted and authorized in the communication in unlicensed spectrum
On serving cell it is associated.One intuitive method is the CA (Carrier reused in existing system as far as possible
Aggregation, carrier wave polymerization) concept, that is, be deployed in authorization frequency spectrum on serving cell as PCC (Primary
Component Carrier, main carrier), the serving cell in unlicensed spectrum is deployed in as SCC (Secondary
Component Carrier, secondary carrier).For unlicensed spectrum, it is contemplated that uncontrollable/prediction of its interference level, LBT
(Listen Before Talk, first listen to and send afterwards) technology can effectively avoid the interference between LTE system and other systems
And the interference inside LTE system between different operators equipment.In RAN#64 plenary session (seminar), in unlicensed spectrum
Communication by Uniform Name be LAA (License Assisted Access, authorization frequency spectrum auxiliary access).
For LTE LAA, a problem in need of consideration is wireless transmission of the base station in current subframe regulation goal subframe
When, the wireless transmission that (due to the introducing of LBT technology) may be unable to ensure in target-subframe really occurs.For example, LTE uplink passes
It is defeated to use synchronous HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat-request), it may be assumed that uplink retransmission
The time-frequency location of occupied physical resource and the occupied physical resource of initial transmission in subframe is identical, uplink retransmission
Occupied subframe is also predefined.And for LBT, UE (User Equipment, user equipment) is in unlicensed spectrum
Interference level is monitored to determine whether to execute uplink and send.Base station can not determine that UE is sent whether scheduling subframe performs uplink
And base station possibly can not determine the redundancy versions for the physical layer data that UE is sent in scheduling subframe, i.e. LBT and uplink synchronous HARQ
Conflict can be generated.In another example if base station LAA carrier wave by semi-static mode configurating downlink RS (Reference Signal,
Reference signal) transmission when, not ensuring that the subframe of configuration all is available subframe.
In view of the above-mentioned problems, the invention discloses LAA transmission methods and device in a kind of Cellular Networks.
Summary of the invention
The invention discloses a kind of methods in UE, wherein includes the following steps:
Step A. receives the first signaling and the second signaling in the first subframe and the second subframe respectively.First signaling instruction the
The first COT (Channel Occupation Time, Channel holding time) on one carrier wave, the triggering of the second signaling are carried first
Wireless transmission in the target-subframe of wave, the wireless transmission is uplink or downlink transfer
Step B. according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.Institute
Stating wireless transmission is uplink, if it is determined that wireless transmission implementation is then sent in the target-subframe of first carrier
Physical layer data is abandoned sending physics in the target-subframe of first carrier if it is determined that the wireless transmission is not implemented
Layer data；Or the wireless transmission is downlink transfer, if it is determined that wireless transmission implementation is then described in the first carrier
Downlink RS is received in target-subframe, if it is determined that the wireless transmission is not implemented, is put in the target-subframe of first carrier
It abandons and receives downlink RS.
Wherein, first carrier is deployed in unlicensed spectrum.First signaling is the UE nearest before the target-subframe
The signaling of COT of the serving cell for being used to indicate the UE once received on first carrier.First COT occupies K company
Continuous subframe, the K is positive integer.
As one embodiment, the wireless transmission is uplink, and the second signaling is the DCI sent for dispatching uplink
(Downlink Control Information, Downlink Control Information), the running time-frequency resource that the physical layer data occupies is by the
The instruction of two signalings.As a sub- embodiment of above-described embodiment, the second signaling is DCI format 0 or DCI format 4.As one
A embodiment, the wireless transmission is uplink, and the second signaling is NACK, the running time-frequency resource that the physical layer data occupies by
The HARQ process of second signaling instruction determines.As one embodiment, the wireless transmission is downlink transfer, and the second signaling is to use
In RRC (Radio Resource Control, the wireless heterogeneous networks) signaling for configuring periodic RS, the target-subframe is
A transmission subframe of periodic RS.As one embodiment, the wireless transmission is downlink transfer, and the downlink RS is occupied
Running time-frequency resource indicated by the second signaling.As one embodiment, the first signaling is physical layer signaling.
As one embodiment, the wireless transmission is uplink, and the target-subframe is after the second subframe
K1 subframe, the k1 are corresponding to the delay of one of TDD (Time Division Duplex, time division duplex) uplink scheduling
Number of sub-frames, i.e. one in { 4,5,6,7 }.As one embodiment, the second signaling and the first signaling are on a second carrier
Transmission, the second carrier wave are deployed in authorization frequency spectrum, and the subframe timing of first carrier and the second carrier wave is nonsynchronous.
As one embodiment, the K is configured by high-level signaling.
As one embodiment, the starting subframe of the first COT is the first subframe.
Specifically, according to an aspect of the present invention, which is characterized in that the step B includes the following steps:
Step B1. judges that the wireless transmission is implemented.Wherein the target-subframe belongs to the first COT.
Specifically, according to an aspect of the present invention, which is characterized in that the step B includes the following steps:
Wireless transmission is uplink described in step B2., on first carrier in the previous subframe of the target-subframe
LBT operation is executed to judge whether the wireless transmission is implemented；Or the wireless transmission is downlink transfer, is judged described wireless
Transmission is not implemented.
Wherein, the target-subframe is the subframe except the first COT.
Specifically, according to an aspect of the present invention, which is characterized in that the wireless transmission is downlink transfer, further includes
Following steps:
Step C. sends uplink CSI on a second carrier, and (Channel Status Indicator, channel status refer to
Show), the reference RS of the uplink CSI includes the downlink RS, and the second carrier wave is deployed in authorization frequency spectrum.
The reference RS of the uplink CSI includes that the downlink RS refers to, it includes that the downlink RS exists that the UE, which is utilized,
Interior resource carries out channel estimation, calculates the uplink CSI.As one embodiment, the CSI includes { RI (Rank
Indicator, order instruction), PTI (Precoding Type Indicator, precoding type instruction), PMI (Precoding
Matrix Indicator, pre-coding matrix instruction), CQI (Channel Quality Indicator, channel quality instruction) }
One or more of.
Specifically, according to an aspect of the present invention, which is characterized in that the wireless transmission is uplink, the object
The redundancy versions (RV, Redundancy Version) of reason layer data assume that in current HARQ process to be sent without abandoning uplink
Under the conditions of the corresponding redundancy versions of the target-subframe.
The essence of above-mentioned aspect is, if UE judgement wireless transmission is not implemented, to discard (Drop) corresponding object
Layer data is managed, does not influence the redundancy versions of the physical layer data of the subsequent transmission of HARQ process belonging to the physical layer data.On
It states the RV that the uplink that aspect can ensure that UE is executed is sent all with the synchronous HARQ in existing LTE system to be consistent, avoids base
It stands the redundancy versions of physical layer data that side is obscured in the HARQ process.Above-mentioned aspect and existing LTE synchronous HARQ are kept most
Big compatibility.
The invention discloses a kind of methods in base station, wherein includes the following steps:
Step A. sends the first signaling and the second signaling in the first subframe and the second subframe respectively.First signaling instruction the
The first COT on one carrier wave, the second signaling trigger the wireless transmission in the target-subframe of first carrier, and the wireless transmission is
Uplink or downlink transfer
Step B. according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.Institute
Stating wireless transmission is uplink, if it is determined that wireless transmission implementation then receives in the target-subframe of first carrier
Physical layer data is abandoned receiving physics in the target-subframe of first carrier if it is determined that the wireless transmission is not implemented
Layer data；Or the wireless transmission is downlink transfer, if it is determined that wireless transmission implementation is then described in the first carrier
Downlink RS is sent in target-subframe, if it is determined that the wireless transmission is not implemented, abandons the target-subframe in first carrier
Upper transmission downlink RS.
Wherein, first carrier is deployed in unlicensed spectrum.First signaling be the base station before the target-subframe most
The signaling of COT of the transmission cell for being used to indicate the second signaling closely once sent on first carrier.First COT occupies K
Continuous subframes, the K are positive integers.
The physical layer data is sent by the reception UE of the second signaling.COT is used to indicate subframe scheduled in base station.As
One embodiment, the base station execute { downlink is sent, uplink receiving } in the subframe of the COT on (it is indicated) first carrier
At least one of, the transceiver for being directed to first carrier is closed in the subframe except the COT on (it is indicated) first carrier.
As one embodiment, the operating method for abandoning receiving physical layer data are as follows: the base station is in the target
Subframe closes the wireless receiver for being directed to first carrier.As one embodiment, the operation for abandoning receiving physical layer data
Method are as follows: the base station abandons the wireless signal that (Drop) is received in the target-subframe of first carrier.
Specifically, according to an aspect of the present invention, which is characterized in that the step B includes the following steps:
Step B1. judges that the wireless transmission is implemented.Wherein the target-subframe belongs to the first COT.
Specifically, according to an aspect of the present invention, which is characterized in that the step B includes the following steps:
Wireless transmission is uplink described in step B2., voluntarily judges whether the wireless transmission is implemented；Or it is described
Wireless transmission is downlink transfer, judges that the wireless transmission is not implemented.
Wherein, the target-subframe is the subframe except the first COT.
It is described voluntarily the judgment method is as follows: if received signal power is more than given power threshold as one embodiment
Then judge that the wireless transmission is implemented, otherwise judges that the wireless transmission is not implemented.It is described voluntarily to judge as one embodiment
Method be: connect according on the running time-frequency resource of DMRS (Demodulation Reference Signal, demodulated reference signal)
The wireless signal that receives carries out channel estimation, if the statistical property of the channel parameter recovered meets expection, described in judgement
Wireless transmission is implemented, and otherwise judges that the wireless transmission is not implemented.Meet expected one embodiment as the statistical property:
Maximum multipath delay is less than given time threshold value.
Specifically, according to an aspect of the present invention, which is characterized in that the wireless transmission is downlink transfer, further includes
Following steps:
Step C. receives uplink CSI on a second carrier, and the reference RS of the uplink CSI includes the downlink RS, and second
Carrier wave is deployed in authorization frequency spectrum.
As one embodiment, the downlink RS is CSI-RS.
Specifically, according to an aspect of the present invention, which is characterized in that the wireless transmission is uplink, the object
The redundancy versions of reason layer data assume that corresponding without abandoning the target-subframe under the conditions of uplink is sent in current HARQ process
Redundancy versions.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: for receiving the first signaling and the second signaling respectively in the first subframe and the second subframe.First signaling
Indicate the first COT on first carrier, the second signaling triggers the wireless transmission in the target-subframe of first carrier, described wireless
Transmission is uplink or downlink transfer
Second module: for according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred whether
Implement.The wireless transmission is uplink, if it is determined that the then target in first carrier is implemented in the wireless transmission
Physical layer data is sent on frame, if it is determined that the wireless transmission is not implemented, is abandoned in the target-subframe of first carrier
Send physical layer data；Or the wireless transmission is downlink transfer, if it is determined that the wireless transmission is implemented then to carry first
Downlink RS is received in the target-subframe of wave, if it is determined that the then target in first carrier is not implemented in the wireless transmission
It abandons receiving downlink RS in subframe.
Wherein, first carrier is deployed in unlicensed spectrum.First signaling is the UE nearest before the target-subframe
The signaling of COT of the serving cell for being used to indicate the UE once received on first carrier.First COT occupies K company
Continuous subframe, the K is positive integer.
As one embodiment, the second module is for judging that the wireless transmission is implemented.Wherein the target-subframe belongs to
First COT.
As one embodiment, the second module is used for:
The wireless transmission is uplink, executes LBT in the previous subframe of the target-subframe on first carrier
Operation is to judge whether the wireless transmission is implemented；Or the wireless transmission is downlink transfer, judges the wireless transmission not
Implement.
Wherein, the target-subframe is the subframe except the first COT.
As one embodiment, the equipment further include:
Third module: for sending uplink CSI on a second carrier, the reference RS of the uplink CSI includes the downlink
RS, the second carrier wave are deployed in authorization frequency spectrum.
The invention discloses a kind of base station equipments, which is characterized in that the equipment includes:
First module: for sending the first signaling and the second signaling respectively in the first subframe and the second subframe.First signaling
Indicate the first COT on first carrier, the second signaling triggers the wireless transmission in the target-subframe of first carrier, described wireless
Transmission is uplink or downlink transfer
Second module: for according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred whether
Implement.The wireless transmission is uplink, if it is determined that the then target in first carrier is implemented in the wireless transmission
Physical layer data is received on frame, if it is determined that the wireless transmission is not implemented, is abandoned in the target-subframe of first carrier
Receive physical layer data；Or the wireless transmission is downlink transfer, if it is determined that the wireless transmission is implemented then to carry first
Downlink RS is sent in the target-subframe of wave, if it is determined that the wireless transmission is not implemented, is abandoned described in the first carrier
Downlink RS is sent in target-subframe.
Wherein, first carrier is deployed in unlicensed spectrum.First signaling be the base station before the target-subframe most
The signaling of COT of the transmission cell for being used to indicate the second signaling closely once sent on first carrier.First COT occupies K
Continuous subframes, the K are positive integers.
As one embodiment, the second module is for judging that the wireless transmission is implemented.Wherein the target-subframe belongs to
First COT.
As one embodiment, the second module is used for
Wireless transmission is uplink described in-, voluntarily judges whether the wireless transmission is implemented；Or the wireless biography
Defeated is downlink transfer, judges that the wireless transmission is not implemented.
Wherein, the target-subframe is the subframe except the first COT.
As one embodiment, the equipment further include:
Third module: for receiving uplink CSI on a second carrier, the reference RS of the uplink CSI includes the downlink
RS, the second carrier wave are deployed in authorization frequency spectrum.
Target may be unable to ensure in the wireless transmission in the target-subframe of current subframe scheduling LAA carrier wave for base station
This problem really occurs for the wireless transmission in subframe, the invention proposes the LAA transmission method and device in a kind of Cellular Networks,
Base station sends signaling and indicates that COT, UE assist determining whether the wireless transmission of base station triggers is implemented using COT.The invention enables draw
Enter that the later LTE LAA of LBT technology can be compatible with traditional synchronization UL (Uplink, uplink) HARQ scheme and traditional RS half is quiet
State allocation plan avoids complicated standard change.
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 according to an embodiment of the invention that uplink is carried out on LAA carrier wave；
Fig. 2 shows according to an embodiment of the invention on LAA carrier wave carries out the flow chart of downlink RS transmission；
Fig. 3 shows the first subframe according to an embodiment of the invention, the timing diagram of the second subframe and target-subframe；
Fig. 4 shows the structural frames of the processing unit sent for uplink in UE according to an embodiment of the invention
Figure；
Fig. 5 shows the structure for the received processing unit of downlink RS in UE according to an embodiment of the invention
Block diagram；
Fig. 6 shows the structure of the processing unit for uplink receiving in base station according to an embodiment of the invention
Block diagram；
Fig. 7 shows the knot of the processing unit sent for downlink RS in base station according to an embodiment of the invention
Structure block diagram；
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 that uplink is carried out on LAA carrier wave, as shown in Fig. 1.In attached drawing 1, base station
N1 safeguards first community, and first community is the serving cell of UE U2.
For base station N1, in step s 11, the first signaling and the second letter are sent respectively in the first subframe and the second subframe
It enables；In step s 12, according to target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.If sentenced
The wireless transmission of breaking is implemented, then receives physical layer data in the target-subframe of first carrier in the step s 120；Such as
Fruit judges that the wireless transmission is not implemented, and abandons receiving physics in the target-subframe of first carrier in step S121
Layer data.Wherein, the first signaling be base station N1 before the target-subframe it is the last send be used to indicate first community
The signaling of COT on first carrier.
For UE U2, in the step s 21, the first signaling and the second signaling are received respectively in the first subframe and the second subframe；
In step S22, according to target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.If it is determined that
The wireless transmission is implemented, then sends physical layer data in the target-subframe of first carrier in step S220；If
Judge that the wireless transmission is not implemented, then abandons sending physical layer in the target-subframe of first carrier in step S221
Data.Wherein, the first signaling is that UE U2 the last first community that is used to indicate received before the target-subframe exists
The signaling of COT on first carrier.
In embodiment 1, the first signaling indicates the first COT on first carrier, and the second signaling triggers the mesh in first carrier
The wireless transmission in subframe is marked, the wireless transmission is uplink.First carrier is deployed in unlicensed spectrum.First COT is accounted for
With K continuous subframes, the K is positive integer.
As the sub- embodiment 1 of embodiment 1, the K is configured by high-level signaling.
As the sub- embodiment 2 of embodiment 1, the first signaling is physical layer signaling, and the second signaling is DCI either NACK.
As the sub- embodiment 3 of embodiment 1, the target-subframe belongs to the first COT, and base station N1 is in step s 12 and UE
U2 judges that the wireless transmission is implemented in step S22.
As the sub- embodiment 4 of embodiment 1, the target-subframe is the subframe except the first COT, and base station N1 is in step
Voluntarily judge whether the wireless transmission is implemented in S12, UE U2 target-subframe on first carrier in step S22
LBT operation is executed in previous subframe to judge whether the wireless transmission is implemented.
As the sub- embodiment 5 of embodiment 1, the redundancy versions of the physical layer data, which assume that in current HARQ process, not to be had
Have and abandons the corresponding redundancy versions of the target-subframe under the conditions of uplink is sent.
Embodiment 2
Embodiment 2 illustrates the flow chart that downlink RS transmission is carried out on LAA carrier wave, as shown in Fig. 2.In attached drawing 2, base
The N3 that stands safeguards second community, and second community is the serving cell of UE U4.
For base station N3, in step S31, the first signaling and the second letter are sent respectively in the first subframe and the second subframe
It enables；In step s 32, according to target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.If sentenced
The wireless transmission of breaking is implemented then to send downlink RS in the target-subframe of first carrier in step s 320；If it is determined that
The wireless transmission is not implemented, and abandons sending downlink RS in the target-subframe of first carrier in step S321.Its
In, the first signaling be base station N3 before the target-subframe it is the last send be used to indicate second community in first carrier
On COT signaling.
For UE U4, in step S41, the first signaling and the second signaling are received respectively in the first subframe and the second subframe；
In step S42, according to target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.If it is determined that
The wireless transmission is implemented then to receive downlink RS in the target-subframe of first carrier in the step s 420, if it is determined that institute
It states wireless transmission not implement, abandons receiving downlink RS in the target-subframe of first carrier in step S421.Wherein,
First signaling be UE U4 before the target-subframe it is the last receive be used to indicate second community on first carrier
COT signaling.
In embodiment 2, the first signaling indicates the first COT on first carrier, and the second signaling triggers the mesh in first carrier
The wireless transmission in subframe is marked, the wireless transmission is downlink transfer.First carrier is deployed in unlicensed spectrum.First COT is accounted for
With K continuous subframes, the K is positive integer.
As the sub- embodiment 1 of embodiment 2, the downlink RS is CSI-RS.
As the sub- embodiment 2 of embodiment 2, the second signaling is RRC signaling, occupied by downlink RS described in the second signal deployment
Transmission resource.
As the sub- embodiment 3 of embodiment 2, the first signaling and the second signaling are transmitted on a second carrier, the second carrier wave portion
It is deployed on authorization frequency spectrum.
As the sub- embodiment 4 of embodiment 2, the starting subframe of the first COT is the first subframe.
Embodiment 3
Embodiment 3 illustrates the first subframe, the timing diagram of the second subframe and target-subframe, as shown in Fig. 3.In attached drawing 3,
Bold box grid identifies the first subframe, and oblique line grid identifies the second subframe, and backslash grid identifies third subframe.
Base station sends the first signaling and the second signaling to UE in the first subframe and the second subframe first respectively.Then, base station
With UE respectively according to target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.If base station judges
The wireless transmission is implemented, and base station receives physical layer data in the target-subframe of first carrier, and otherwise base station is first
It abandons receiving physical layer data in the target-subframe of carrier wave.If UE judges that the wireless transmission is implemented, UE is carried first
Physical layer data is sent in the target-subframe of wave, otherwise UE abandons sending physics in the target-subframe of first carrier
Layer data.
In embodiment 3, the first signaling indicates the first COT on first carrier, and the second signaling triggers the mesh in first carrier
The wireless transmission in subframe is marked, the wireless transmission is uplink.First carrier is deployed in unlicensed spectrum.First COT is accounted for
With K continuous subframes, the K is positive integer.For the base station, the first signaling is it nearest one before the target-subframe
The signaling of COT of the serving cell for being used to indicate the UE of secondary transmission on first carrier.For the UE, the first signaling is
The signaling of its last received COT on first carrier that is used to indicate its serving cell before the target-subframe.
First signaling and the second signaling are transmitted on a second carrier, and the second carrier wave is deployed in authorization frequency spectrum.First subframe is the second subframe
Later and the subframe before being the target-subframe.
As the sub- embodiment 1 of embodiment 3, the subframe timing of first carrier and the second carrier wave is nonsynchronous.
As the sub- embodiment 2 of embodiment 3, the first signaling is the public physical layer signaling of cell.
Embodiment 4
Embodiment 4 illustrates the structural block diagram of the processing unit sent for uplink in UE, as shown in Fig. 4.Attached drawing 4
In, UE processing unit 200 is made of receiving module 201 and processing module 202.
Receiving module 201 is used to receive the first signaling and the second signaling respectively in the first subframe and the second subframe；Handle mould
Block 202 be used for according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement, if it is determined that
The wireless transmission implementation then sends physical layer data in the target-subframe of first carrier, if it is determined that the wireless biography
It is defeated not implement, it abandons sending physical layer data in the target-subframe of first carrier.
In embodiment 4, the first signaling indicates the first COT on first carrier, and the second signaling triggers the mesh in first carrier
The wireless transmission in subframe is marked, the wireless transmission is uplink.First carrier is deployed in unlicensed spectrum.First signaling is
The UE serving cell for being used to indicate the UE that the last time receives before the target-subframe is on first carrier
COT signaling.First COT occupies K continuous subframes, and the K is positive integer.After the target-subframe is the second subframe
1 subframe of kth, the k1 are one in { 4,5,6,7 }.
Embodiment 5
Embodiment 5 illustrates the structural block diagram for the received processing unit of downlink RS in UE, as shown in Fig. 5.It is attached
In Fig. 5, UE processing unit 300 is made of receiving module 301, processing module 302 and sending module 303, wherein sending module 303
It is optional module.
Receiving module 301 is used to receive the first signaling and the second signaling respectively in the first subframe and the second subframe；Handle mould
Block 302 be used for according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement, if it is determined that
The wireless transmission is implemented then to receive downlink RS in the target-subframe of first carrier, if it is determined that the wireless transmission is not
Implementation is then abandoned receiving downlink RS in the target-subframe of first carrier；Sending module 303 for sending out on a second carrier
Row CSI is served, the reference RS of the uplink CSI includes the downlink RS, and the second carrier wave is deployed in authorization frequency spectrum.
In embodiment 5, the first signaling indicates the first COT on first carrier, and the second signaling triggers the mesh in first carrier
The wireless transmission in subframe is marked, the wireless transmission is downlink transfer.First carrier is deployed in unlicensed spectrum.First signaling is
The UE serving cell for being used to indicate the UE that the last time receives before the target-subframe is on first carrier
COT signaling.First COT occupies K continuous subframes, and the K is positive integer.
Embodiment 6
Embodiment 6 illustrates the structural block diagram of the processing unit for uplink receiving in a base station, such as 6 institute of attached drawing
Show.In attached drawing 6, base station processing unit 400 is made of sending module 401 and processing module 402.
Sending module 401 is used to send the first signaling and the second signaling respectively in the first subframe and the second subframe；Handle mould
Block 402 be used for according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement.If it is determined that
The wireless transmission implementation then receives physical layer data in the target-subframe of first carrier；If it is determined that the wireless biography
It is defeated not implement, it abandons receiving physical layer data in the target-subframe of first carrier.
In embodiment 6, the first signaling indicates the first COT on first carrier, and the second signaling triggers the mesh in first carrier
The wireless transmission in subframe is marked, the wireless transmission is uplink.First carrier is deployed in unlicensed spectrum.First signaling is
The transmission cell for being used to indicate the second signaling of the base station the last transmission before the target-subframe is in first carrier
On COT signaling.First COT occupies K continuous subframes, and the K is positive integer.
As the sub- embodiment 1 of embodiment 6, the method for the auxiliary judgment are as follows: if the target-subframe belongs to first
COT then judges that the wireless transmission is implemented；If the target-subframe belongs to the subframe except the first COT, voluntarily described in judgement
Whether wireless transmission is implemented.
Embodiment 7
Embodiment 7 illustrates the structural block diagram of the processing unit sent for downlink RS in a base station, such as 7 institute of attached drawing
Show.In attached drawing 7, base station processing unit 500 is made of sending module 501, processing module 502 and receiving module 503, wherein receiving
Module 503 is optional module.
Sending module 501 is used to send the first signaling and the second signaling respectively in the first subframe and the second subframe；Handle mould
Block 502 be used for according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement, if it is determined that
The wireless transmission is implemented then to send downlink RS in the target-subframe of first carrier, if it is determined that the wireless transmission is not
Implementation is then abandoned sending downlink RS in the target-subframe of first carrier；Receiving module 503 for connecing on a second carrier
Uplink CSI is received, the reference RS of the uplink CSI includes the downlink RS, and the second carrier wave is deployed in authorization frequency spectrum.
Wherein, the first COT on the first signaling instruction first carrier, the second signaling trigger the target-subframe in first carrier
On wireless transmission, the wireless transmission is downlink transfer.First carrier is deployed in unlicensed spectrum.First signaling is the base
Stand COT of the last transmission cell for being used to indicate the second signaling sent on first carrier before the target-subframe
Signaling.First COT occupies K continuous subframes, and the K is positive integer.
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 (8)
1. a kind of method in UE, wherein include the following steps:
Step A. receives the first signaling and the second signaling in the first subframe and the second subframe respectively；First signaling instruction first carries
The first COT on wave, the second signaling trigger the wireless transmission in the target-subframe of first carrier, and the wireless transmission is downlink
Transmission；
Step B. according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement；If sentenced
The wireless transmission of breaking is implemented then to receive downlink RS in the target-subframe of first carrier, if it is determined that the wireless transmission
Do not implement, abandons receiving downlink RS in the target-subframe of first carrier；
Wherein, first carrier is deployed in unlicensed spectrum；First signaling is the UE the last before the target-subframe
The signaling of COT of the serving cell for being used to indicate the UE received on first carrier；First COT occupies K continuous sons
Frame, the K are positive integers.
2. a kind of method in base station, wherein include the following steps:
Step A. sends the first signaling and the second signaling in the first subframe and the second subframe respectively；First signaling instruction first carries
The first COT on wave, the second signaling trigger the wireless transmission in the target-subframe of first carrier, and the wireless transmission is downlink
Transmission；
Step B. according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement；If sentenced
The wireless transmission of breaking is implemented then to send downlink RS in the target-subframe of first carrier, if it is determined that the wireless transmission
Do not implement, abandons sending downlink RS in the target-subframe of first carrier；
Wherein, first carrier is deployed in unlicensed spectrum；First signaling is the base station nearest one before the target-subframe
The signaling of COT of the transmission cell for being used to indicate the second signaling of secondary transmission on first carrier；First COT occupies K continuously
Subframe, the K are positive integers.
3. a kind of user equipment, which is characterized in that the equipment includes:
First module: for receiving the first signaling and the second signaling respectively in the first subframe and the second subframe；The instruction of first signaling
The first COT on first carrier, the second signaling trigger the wireless transmission in the target-subframe of first carrier, the wireless transmission
It is downlink transfer；
Second module: for according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement；
If it is determined that the wireless transmission is implemented then to receive downlink RS in the target-subframe of first carrier, if it is determined that the nothing
Line transmission is not implemented, and abandons receiving downlink RS in the target-subframe of first carrier；
Wherein, first carrier is deployed in unlicensed spectrum；First signaling is the UE the last before the target-subframe
The signaling of COT of the serving cell for being used to indicate the UE received on first carrier；First COT occupies K continuous sons
Frame, the K are positive integers.
4. user equipment according to claim 3, which is characterized in that second module judges that the wireless transmission is real
It applies；Wherein the target-subframe belongs to the first COT.
5. user equipment according to claim 3, which is characterized in that the downlink RS is CSI-RS.
6. the user equipment according to any claim in claim 3 to 5, it is characterised in that including third module, institute
It states third module and sends uplink CSI on a second carrier, the reference RS of the uplink CSI includes the downlink RS, the second carrier wave
It is deployed in authorization frequency spectrum.
7. the user equipment according to any claim in claim 3 to 5, which is characterized in that the first COT's rises
Beginning subframe is the first subframe.
8. a kind of base station equipment, which is characterized in that the equipment includes:
First module: for sending the first signaling and the second signaling respectively in the first subframe and the second subframe；The instruction of first signaling
The first COT on first carrier, the second signaling trigger the wireless transmission in the target-subframe of first carrier, the wireless transmission
It is downlink transfer；
Second module: for according to the target-subframe whether belong to the first COT auxiliary judgment described in be wirelessly transferred and whether implement；
If it is determined that the wireless transmission is implemented then to send downlink RS in the target-subframe of first carrier, if it is determined that the nothing
Line transmission is not implemented, and abandons sending downlink RS in the target-subframe of first carrier；
Wherein, first carrier is deployed in unlicensed spectrum；First signaling is the base station nearest one before the target-subframe
The signaling of COT of the transmission cell for being used to indicate the second signaling of secondary transmission on first carrier；First COT occupies K continuously
Subframe, the K are positive integers.
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| CN110035439B (en) * | 2014-10-23 | 2023-02-28 | 上海朗帛通信技术有限公司 | LAA transmission method and device in cellular network |
| US10512033B2 (en) * | 2015-01-29 | 2019-12-17 | Qualcomm Incorporated | Timing information for discovery in unlicensed spectrum |
| WO2018059698A1 (en) * | 2016-09-29 | 2018-04-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Coordination of scheduled and contention-based uplink transmissions |
| CN107889114B (en) * | 2016-09-30 | 2023-11-17 | 华为技术有限公司 | Method and equipment for occupying unlicensed spectrum channels |
| EP3598819B1 (en) | 2017-04-20 | 2021-08-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method, apparatus and system for transmitting periodic uplink information/signals |
| CN110932829B (en) * | 2018-09-20 | 2022-04-01 | 维沃移动通信有限公司 | Transmission time indication method of unlicensed frequency band, network equipment and terminal |
| US20210410164A1 (en) * | 2018-09-29 | 2021-12-30 | Beijing Xiaomi Mobile Software Co., Ltd. | Method, device and base station for transmitting information |
| CN111432423B (en) * | 2019-01-10 | 2021-11-19 | 华为技术有限公司 | Resource allocation method and device |
| WO2020150877A1 (en) * | 2019-01-21 | 2020-07-30 | Oppo广东移动通信有限公司 | Method for communication in unlicensed spectrum and device |
| US20220123876A1 (en) * | 2019-02-01 | 2022-04-21 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and device for scheduling hybrid automatic repeat request |
| US20230032015A1 (en) * | 2020-01-23 | 2023-02-02 | Qualcomm Incorporated | User equipment as initiating device in frame based equipment mode |
| CN115968038A (en) * | 2020-02-06 | 2023-04-14 | Oppo广东移动通信有限公司 | Transmission resource determination method and device and communication equipment |
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| CN110035439B (en) | 2023-02-28 |
| CN105530647A (en) | 2016-04-27 |
| CN110049564A (en) | 2019-07-23 |
| CN105530647B (en) | 2019-09-06 |
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