CN105306180A - LAA (License Assisted Access) communication method and device - Google Patents
LAA (License Assisted Access) communication method and device Download PDFInfo
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Abstract
The invention provides an LAA (License Assisted Access) communication method and device. In step 1, UE receives a first signal at a first subframe and the first signal triggers the uplink transmission at the target subframe of a first carrier; in the step 1, the UE indicates whether to carry out uplink transmission at the target subframe of the first carrier or not, by a second signal at a given resource in a second subframe; in the step 1, if the UE indicates to carry out uplink transmission, the UE transmits physical layer data at the target subframe of the first carrier; and if the UE indicates not to carry out uplink transmission, the UE remains zero transmission power at the target subframe of the first carrier. Wherein the first signal is a physical layer uplink dispatch signal or NACK, the first carrier is deployed at an unlicensed spectrum, the given resource is on the unlicensed spectrum, the second subframe is the k1th subframe behind the first subframe, and k1 is a positive integer greater than 3. The scheme disclosed by the invention has the advantage that the conflict between synchronous HARQ and LBT is avoided; in addition, the invention has relatively good compatibility.
Description
Technical field
The present invention relates in wireless communication system the scheme utilizing unlicensed spectrum to communicate, particularly relate to the communication means for unlicensed spectrum (UnlicensedSpectrum) based on LTE (LongTermEvolution, Long Term Evolution) and device.
Background technology
Traditional 3GPP (3rdGenerationPartnerProject, third generation partner program) in LTE system, transfer of data can only occur in authorizes on frequency spectrum, but along with the sharply increase of traffic carrying capacity, especially in some urban areas, frequency spectrum is authorized may to be difficult to the demand meeting traffic carrying capacity.62 plenary sessions of 3GPPRAN discuss a new research topic, namely the research (RP-132085) that unlicensed spectrum is comprehensive, main purpose is that the Non-standalone (dependent) of the LTE of research and utilization in unlicensed spectrum disposes, and so-called Non-standalone refers to that the communication in unlicensed spectrum is wanted and authorizes the Serving cell on frequency spectrum to be associated.One intuitively method be the CA (CarrierAggregation reused as far as possible in existing system, carrier aggregation) concept, namely be deployed in and authorize Serving cell on frequency spectrum as PCC (PrimaryComponentCarrier, main carrier), be deployed in Serving cell in unlicensed spectrum as SCC (SecondaryComponentCarrier, auxiliary carrier wave).For unlicensed spectrum, consider its interference level uncontrollable/prediction, LBT (ListenBeforeTalk first intercepts rear transmission) technology effectively can avoid the interference between LTE system and other system and the interference between the inner different operators equipment of LTE system.In RAN#64 plenary session (seminar), the communication in unlicensed spectrum is LAA (LicenseAssistedAccess authorizes the auxiliary access of frequency spectrum) by Uniform Name.
In LTE, uplink adopts synchronous HARQ (HybridAutomaticRepeatRequest, hybrid automatic repeat-request), that is: the physical resource shared by uplink retransmission and the physical resource shared by the initial transmission time-frequency location in subframe is identical, and the subframe shared by uplink retransmission is also predefined.And interference level is monitored in unlicensed spectrum to determine whether to perform up transmission for LBT, UE.UE (UserEquipment cannot be determined in base station, subscriber equipment) whether perform up transmission and the redundancy versions of physical layer data that UE sends in scheduling subframe possibly cannot be determined in base station in scheduling subframe, namely LBT and uplink synchronous HARQ can produce conflict.For the problems referred to above, the invention discloses a kind of LAA communication means and device.
Summary of the invention
The invention discloses a kind of method in UE, wherein, comprise the steps:
-steps A. receive the first signaling in the first subframe, the first signaling triggers the up transmission in the target-subframe of first carrier
The given resource of-step B. in the second subframe utilize the second signaling instruction whether carry out up transmission in the described target-subframe of first carrier
If up transmission is carried out in-step C. instruction, the described target-subframe of first carrier sends physical layer data; If instruction does not carry out up transmission, the described target-subframe of first carrier keeps zero transmitted power.
Wherein, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
UE indicates base station whether to perform the up transmission of the first signaling triggering, avoids base station blind Detecting upstream data and sends.
Described uplink scheduling signaling is the signaling sent for dispatching uplink.As an embodiment, described physical layer uplink scheduling signaling is DCI (DownlinkControlInformation, the Downlink Control Information) form { one in 0,4}.As an embodiment, described target-subframe is 1 subframe.As an embodiment, the ascending HARQ of first carrier follows TDD (TimeDivisionDuplex with reference to sequential, time division duplex) UL (Uplink, up)/DL (Downlink, descending) the ascending HARQ sequential of frame structure 0, described target-subframe comprises 2 subframes.
As an embodiment of described step B, the given resource of described UE in the second subframe utilizes whether send second signaling instruction in the described target-subframe of first carrier, whether carry out up transmission, if namely the second signaling is zero energy signal, second signaling instruction carries out up transmission, the second signaling be non-zero power signal then second signaling instruction do not carry out up transmission.This embodiment avoids the UE transmitted power that simultaneously the second signaling of non-zero power and physical layer data cause to increase.
As an embodiment of described step B, the given resource of described UE in the second subframe sends the second signaling instruction and whether carry out up transmission in the described target-subframe of first carrier, no matter namely whether carry out up transmission, the second signaling is not zero transmitted power.
Concrete, according to an aspect of the present invention, it is characterized in that, described steps A also comprises the steps:
-steps A 0. is intercepted to determine whether carry out up transmission in described target-subframe on first carrier.
As an embodiment, received signal power is detected in listen window before target-subframe described in described UE, if received signal power is greater than specific threshold, then determine not carry out up transmission in described target-subframe, otherwise determine to carry out up transmission in described target-subframe.
Concrete, according to an aspect of the present invention, it is characterized in that, the redundancy versions of described physical layer data does not abandon redundancy versions corresponding to described target-subframe under up transmission condition in hypothesis current HARQ process.
The essence of above-mentioned aspect is, if described UE determines not carry out up transmission, then discards (Drop) corresponding physical layer data.Obscuring of redundancy versions can be avoided in above-mentioned aspect.
Concrete, according to an aspect of the present invention, it is characterized in that, the first signaling is NACK, and the second signaling indicates the redundancy versions of described physical layer data.
As an embodiment of above-mentioned aspect, in current HARQ process n-th time described physical layer data send, described n be not more than 4 positive integer, the redundancy versions of described physical layer data is the n-th element in vector [0231].
The essence of above-described embodiment is, if described UE determines not carry out up transmission, then the corresponding physical layer data of delayed delivery is to the chance of up transmission next time.Above-described embodiment can keep base station side receptivity, but is the increase in transmission delay, needs described UE to feed back redundancy versions simultaneously.
Concrete, according to an aspect of the present invention, it is characterized in that, the second subframe is described target-subframe.
Concrete, according to an aspect of the present invention, it is characterized in that, described given resource is positioned at PUCCH territory, and the form of the second signaling is PUCCH (PhysicalUplinkControlChannel, Physical Uplink Control Channel) form { 1, one in 1a, 1b, 3}.
As an embodiment, the form of the second signaling is that PUCCH format { one in 1,1a, 1b}, determine by the CCE of described given resource shared by the first signaling (ControlChannelElement, control channel unit) index-mapping.
The invention discloses a kind of method in base station, wherein, comprise the steps:
-steps A. send the first signaling in the first subframe, the first up transmission of signaling trigger target UE in the target-subframe of first carrier
The given resource of-step B. in the second subframe detects the second signaling and determine whether described object UE carries out up transmission in the described target-subframe of first carrier
If-step C. determines that described object UE carries out up transmission, the described target-subframe of first carrier receives physical layer data; If determine that described object UE does not carry out up transmission, then determine that described object UE keeps zero transmitted power in the described target-subframe of first carrier.
Wherein, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
As an embodiment, described target-subframe is 1 subframe.As an embodiment, the ascending HARQ of first carrier follows the ascending HARQ sequential of TDDUL/DL frame structure 0 with reference to sequential, described target-subframe comprises 2 subframes.As an embodiment of described step B, according to whether detecting that the second signaling determines whether described object UE carries out up transmission in the described target-subframe of first carrier in the given resource of described base station in the second subframe, if namely do not detect the second signaling, determine that described object UE carries out up transmission, if detect the second signaling, determine that described object UE does not carry out up transmission.As an embodiment of described step B, the given resource of described base station in the second subframe receives the second signaling and determine whether described object UE carries out up transmission in the described target-subframe of first carrier, namely determine whether described object UE carries out up transmission according to the information in the second signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, the redundancy versions of described physical layer data does not abandon redundancy versions corresponding to described target-subframe under up transmission condition in hypothesis current HARQ process.
Concrete, according to an aspect of the present invention, it is characterized in that, the first signaling is NACK, and the second signaling indicates the redundancy versions of described physical layer data.
Concrete, according to an aspect of the present invention, it is characterized in that, the second subframe is described target-subframe.
Concrete, according to an aspect of the present invention, it is characterized in that, described given resource is positioned at PUCCH territory, and the form of the second signaling is PUCCH format { in 1,1a, 1b, 3}.
As an embodiment, the form of the second signaling is that PUCCH format { one in 1,1a, 1b}, determine by the CCE index of described given resource shared by the first signaling.
The invention discloses a kind of subscriber equipment, it is characterized in that, this equipment comprises:
First module: for receiving the first signaling in the first subframe, the first signaling triggers the up transmission in the target-subframe of first carrier
Second module: utilize the second signaling instruction whether to carry out up transmission in the given resource in the second subframe in the described target-subframe of first carrier
3rd module: if carry out up transmission for instruction, the described target-subframe of first carrier sends physical layer data; If instruction does not carry out up transmission, the described target-subframe of first carrier keeps zero transmitted power.
Wherein, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
The invention discloses a kind of base station equipment, it is characterized in that, this equipment comprises:
First module: for sending the first signaling in the first subframe, the first up transmission of signaling trigger target UE in the target-subframe of first carrier
Second module: detect the second signaling and determine whether described object UE carries out up transmission in the described target-subframe of first carrier in the given resource in the second subframe
3rd module: if for determining that described object UE carries out up transmission, the described target-subframe of first carrier receives physical layer data; If determine that described object UE does not carry out up transmission, then determine that described object UE keeps zero transmitted power in the described target-subframe of first carrier.
Wherein, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
This problem of conflict can be produced for LBT and uplink synchronous HARQ, the present invention proposes a kind of LAA communication means and device, avoid base station blind Detecting upstream data and send, contribute to the redundancy versions that up transmission is determined in base station simultaneously.In addition, the uplink synchronous HARQ in existing LTE protocol that the solution of the present invention is compatible, has good compatibility.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the flow chart carrying out up transmission according to an embodiment of the invention;
Fig. 2 shows the flow chart not carrying out up transmission according to an embodiment of the invention;
Fig. 3 shows HARQ process according to an embodiment of the invention and takies subframe schematic diagram;
Fig. 4 shows the structured flowchart of the processing unit in UE according to an embodiment of the invention;
Fig. 5 shows the structured flowchart of the processing unit in base station according to an embodiment of the invention;
Embodiment
Hereafter will be described in further detail technical scheme of the present invention by reference to the accompanying drawings, and it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Embodiment 1
Embodiment 1 illustrates the flow chart carrying out up transmission, as shown in Figure 1.In accompanying drawing 1, base station N1 is the serving BS of UEU2.
For base station N1, in step s 11, send the first signaling in the first subframe, the first up transmission of signaling trigger target UE in the target-subframe of first carrier; In step s 12, the given resource in the second subframe detects the second signaling and determine that described object UE carries out up transmission in the described target-subframe of first carrier; In step s 13, the described target-subframe of first carrier receives physical layer data.
For UEU2, in the step s 21, receive the first signaling in the first subframe, the first signaling triggers the up transmission in the target-subframe of first carrier; In step S22, the given resource in the second subframe utilize the second signaling instruction carry out up transmission in the described target-subframe of first carrier; In step S23, the described target-subframe of first carrier sends physical layer data.
In embodiment 1, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
As the sub-embodiment 1, UEU1 of embodiment 1 in step S210, first carrier is intercepted determine to carry out up transmission in described target-subframe.
Sub-embodiment 2, second subframe as embodiment 1 is described target-subframe.
As the sub-embodiment 3 of embodiment 1, described given resource is positioned at PUCCH territory, and the form of the second signaling is PUCCH format { in 1,1a, 1b, 3}.
As the sub-embodiment 4, UEU2 of embodiment 1 in step S22, the given resource in the second subframe sends the second signaling instruction and carry out up transmission in the described target-subframe of first carrier.
As the sub-embodiment 5, UEU2 of embodiment 1 in step S22, the given resource in the second subframe keep zero transmitted power instruction of the second signaling carry out up transmission in the described target-subframe of first carrier.
Embodiment 2
Embodiment 2 illustrates the flow chart not carrying out up transmission, as shown in Figure 2.In accompanying drawing 2, base station N3 is the serving BS of UEU4.
For base station N3, in step S31, send the first signaling in the first subframe, the first up transmission of signaling trigger target UE in the target-subframe of first carrier; In step s 32, the given resource in the second subframe detects the second signaling and determine that described object UE does not carry out up transmission in the described target-subframe of first carrier; In step s 13, determine that described object UE keeps zero transmitted power in the described target-subframe of first carrier.
For UEU4, in step S41, receive the first signaling in the first subframe, the first signaling triggers the up transmission in the target-subframe of first carrier; In step S42, the given resource in the second subframe sends the second signaling instruction and do not carry out up transmission in the described target-subframe of first carrier; In step S43, the described target-subframe of first carrier keeps zero transmitted power.
In embodiment 2, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
As the sub-embodiment 1, UEU1 of embodiment 2 in step S410, first carrier is intercepted determine to carry out up transmission in described target-subframe.
Sub-embodiment 2, second subframe as embodiment 2 is described target-subframe.
As the sub-embodiment 3 of embodiment 2, described given resource is positioned at PUCCH territory, and the form of the second signaling is PUCCH format { in 1,1a, 1b}.
Embodiment 3
Embodiment 3 illustrates HARQ process and takies subframe schematic diagram, as shown in Figure 3.In accompanying drawing 3, bold box grid represents the subframe that current ascending HARQ course is reserved, and oblique line grid is the subframe that up transmission takies.
For base station, first send the first signaling in the first subframe, the first up transmission of signaling trigger target UE in the second subframe of first carrier; Then the given resource in the second subframe detects the second signaling and determine whether described object UE carries out up transmission in the second subframe of first carrier; If determine that described object UE carries out up transmission, the second subframe of first carrier receives physical layer data, if determine that described object UE does not carry out up transmission, determine that described object UE keeps zero transmitted power in the second subframe of first carrier.
For UE, first receive the first signaling in the first subframe, the first signaling triggers the up transmission in the second subframe of first carrier; Then the given resource in the second subframe utilize the second signaling instruction whether carry out up transmission in the second subframe of first carrier; If up transmission is carried out in instruction, the second subframe of first carrier sends physical layer data, if instruction does not carry out up transmission, the second subframe of first carrier keeps zero transmitted power.
In embodiment 3, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
In embodiment 3, the second subframe may be any one in subframe S1, S2, S3, S4, subframe S1, S2, S3, S4 corresponding redundancy versions [0231] respectively in LTE.
Sub-embodiment 1, second subframe as embodiment 3 is subframe S1, and the first signaling is uplink scheduling signaling, and UE carries out up transmission in the second subframe, and the redundancy versions of described physical layer data is 0, is namely initialization.
Sub-embodiment 2, second subframe as embodiment 3 is subframe S2, and the first signaling is that NACK, UE do not carry out up transmission in the second subframe.
As the sub-embodiment 3 of embodiment 3, second subframe is subframe S3, and the first signaling is that NACK, UE carry out up transmission in the second subframe, the redundancy versions of described physical layer data does not abandon redundancy versions corresponding to described target-subframe under up transmission condition in hypothesis current HARQ process, namely 3.
Sub-embodiment 4, second subframe as embodiment 3 is subframe S3, and the first signaling is that NACK, UE carry out up transmission in the second subframe.In current HARQ process the 2nd time described physical layer data send (not carrying out up transmission in subframe S2), and the redundancy versions of described physical layer data is the 2nd element in vector [0231], namely 2.Second signaling indicates the redundancy versions of described physical layer data.
Embodiment 4
Embodiment 4 illustrates the structured flowchart of the processing unit in UE, as shown in Figure 4.In accompanying drawing 4, UE processing unit 200 by receiver module 201, sending module 202, and sending module 203 forms.
Receiver module 201 is for for receiving the first signaling in the first subframe, and the first signaling triggers the up transmission in the target-subframe of first carrier; Sending module 202 utilizes the second signaling instruction whether to carry out up transmission in the described target-subframe of first carrier in the given resource in the second subframe; If up transmission is carried out in instruction, sending module 203 for sending physical layer data in the described target-subframe of first carrier; If instruction does not carry out up transmission, sending module 203 for keeping zero transmitted power in the described target-subframe of first carrier.
In embodiment 4, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
As the sub-embodiment 1 of embodiment 4, receiver module 201 also for intercepting to determine whether carry out up transmission in described target-subframe on first carrier.
Sub-embodiment 2, second subframe as embodiment 4 is described target-subframe.
As the sub-embodiment 3 of embodiment 4, described given resource is positioned at PUCCH territory, and the form of the second signaling is PUCCH format { in 1,1a, 1b, 3}.
Embodiment 5
Embodiment 5 illustrates the structured flowchart of the processing unit in a base station, as shown in Figure 5.In accompanying drawing 5, base station processing unit 300 by sending module 301, receiver module 302, and receiver module 303 forms.
Sending module 301 for for sending the first signaling in the first subframe, the first up transmission of signaling trigger target UE in the target-subframe of first carrier; Receiver module 302 detects the second signaling and determines whether described object UE carries out up transmission in the described target-subframe of first carrier in the given resource in the second subframe; If receiver module 303, for determining that described object UE carries out up transmission, the described target-subframe of first carrier receives physical layer data; If determine that described object UE does not carry out up transmission, then determine that described object UE keeps zero transmitted power in the described target-subframe of first carrier.
In embodiment 5, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
Sub-embodiment 1, first signaling as embodiment 5 is NACK, and the second signaling indicates the redundancy versions of described physical layer data.
The all or part of step that one of ordinary skill in the art will appreciate that in said method can be carried out instruction related hardware by program and complete, and described program can be stored in computer-readable recording medium, as read-only memory, and hard disk or CD etc.Optionally, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Accordingly, each modular unit in above-described embodiment, can adopt example, in hardware to realize, and also can be realized by the form of software function module, the application is not limited to the combination of the software and hardware of any particular form.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improves, all should be included within protection scope of the present invention.
Claims (13)
1. the method in UE, wherein, comprises the steps:
-steps A. receive the first signaling in the first subframe, the first signaling triggers the up transmission in the target-subframe of first carrier
The given resource of-step B. in the second subframe utilize the second signaling instruction whether carry out up transmission in the described target-subframe of first carrier
If up transmission is carried out in-step C. instruction, the described target-subframe of first carrier sends physical layer data; If instruction does not carry out up transmission, the described target-subframe of first carrier keeps zero transmitted power.
Wherein, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
2. method according to claim 1, is characterized in that, described steps A also comprises the steps:
-steps A 0. is intercepted to determine whether carry out up transmission in described target-subframe on first carrier.
3. method according to claim 1, is characterized in that, the redundancy versions of described physical layer data does not abandon redundancy versions corresponding to described target-subframe under up transmission condition in hypothesis current HARQ process.
4. method according to claim 1, is characterized in that, the first signaling is NACK, and the second signaling indicates the redundancy versions of described physical layer data.
5. the method according to claim 1-4, is characterized in that, the second subframe is described target-subframe.
6. the method according to claim 1-5, is characterized in that, described given resource is positioned at PUCCH territory, and the form of the second signaling is PUCCH format { in 1,1a, 1b, 3}.
7. the method in base station, wherein, comprises the steps:
-steps A. send the first signaling in the first subframe, the first up transmission of signaling trigger target UE in the target-subframe of first carrier
The given resource of-step B. in the second subframe detects the second signaling and determine whether described object UE carries out up transmission in the described target-subframe of first carrier
If-step C. determines that described object UE carries out up transmission, the described target-subframe of first carrier receives physical layer data; If determine that described object UE does not carry out up transmission, then determine that described object UE keeps zero transmitted power in the described target-subframe of first carrier.
Wherein, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
8. method according to claim 7, is characterized in that, the redundancy versions of described physical layer data does not abandon redundancy versions corresponding to described target-subframe under up transmission condition in hypothesis current HARQ process.
9. method according to claim 7, is characterized in that, the first signaling is NACK, and the second signaling indicates the redundancy versions of described physical layer data.
10. the method according to claim 6-9, is characterized in that, the second subframe is described target-subframe.
11. methods according to claim 6-10, it is characterized in that, described given resource is positioned at PUCCH territory, and the form of the second signaling is PUCCH format { in 1,1a, 1b, 3}.
12. 1 kinds of subscriber equipmenies, is characterized in that, this equipment comprises:
First module: for receiving the first signaling in the first subframe, the first signaling triggers the up transmission in the target-subframe of first carrier
Second module: utilize the second signaling instruction whether to carry out up transmission in the given resource in the second subframe in the described target-subframe of first carrier
3rd module: if carry out up transmission for instruction, the described target-subframe of first carrier sends physical layer data; If instruction does not carry out up transmission, the described target-subframe of first carrier keeps zero transmitted power.
Wherein, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
13. 1 kinds of base station equipments, is characterized in that, this equipment comprises:
First module: for sending the first signaling in the first subframe, the first up transmission of signaling trigger target UE in the target-subframe of first carrier
Second module: detect the second signaling and determine whether described object UE carries out up transmission in the described target-subframe of first carrier in the given resource in the second subframe
3rd module: if for determining that described object UE carries out up transmission, the described target-subframe of first carrier receives physical layer data; If determine that described object UE does not carry out up transmission, then determine that described object UE keeps zero transmitted power in the described target-subframe of first carrier.
Wherein, the first signaling is physical layer uplink scheduling signaling or NACK, and first carrier is deployed in unlicensed spectrum, and described given resource is positioned at authorizes on frequency spectrum, and the second subframe is kth 1 subframe after the first subframe, described k1 be greater than 3 positive integer.
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| CN201410362818.8A CN105306180B (en) | 2014-07-28 | 2014-07-28 | A kind of LAA communication means and device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105722232A (en) * | 2014-12-03 | 2016-06-29 | 上海朗帛通信技术有限公司 | LAA transmission method and apparatus |
| CN105848209A (en) * | 2016-03-21 | 2016-08-10 | 深圳市金立通信设备有限公司 | Sub-frame processing method, related device and system |
| WO2017132953A1 (en) * | 2016-02-04 | 2017-08-10 | 华为技术有限公司 | Pusch transmission method and user equipment in laa-lte system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110098909B (en) | 2021-06-25 |
| CN110098909A (en) | 2019-08-06 |
| CN105306180B (en) | 2019-09-06 |
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