CN105763308A - LAA communication method and apparatus - Google Patents
LAA communication method and apparatus Download PDFInfo
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- CN105763308A CN105763308A CN201410822028.3A CN201410822028A CN105763308A CN 105763308 A CN105763308 A CN 105763308A CN 201410822028 A CN201410822028 A CN 201410822028A CN 105763308 A CN105763308 A CN 105763308A
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Abstract
The invention brings forward an LAA communication method and apparatus. In the first step, UE receives a first signaling and a second signaling, wherein the first signaling schedules uplink transmission in a first time window on first carrier waves, and the second signaling indicates a sending sequence of the UE in the first time window on the first carrier waves. In the second step, whether to execute scheduling of the first signaling is determined according to receiving signal power and the sending sequence detected on the first carrier waves. In the third step, according to a determination result, whether to send uplink signals in the first time window of the first carrier waves is determined, wherein the first carrier waves are disposed in an unlicensed spectrum. According to the invention, resource waste caused by abandon of uplink transmission by the UE can be avoided, and at the same time, multiple UE scheduled to the same time-frequency resources is prevented from conflicts by use of a configured sending sequence.
Description
Technical field
The present invention relates to the scheme utilizing unlicensed spectrum to communicate in wireless communication system, 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, data transmission can only occur on mandate frequency spectrum, sharply increase however as portfolio, especially in some urban areas, frequency spectrum is authorized to be likely difficult to the demand meeting portfolio.62 plenary sessions of 3GPPRAN discuss a new research topic, namely the research (RP-132085) that unlicensed spectrum is comprehensive, the Non-standalone (dependent) that main purpose is research and utilization LTE 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 reuse the CA (CarrierAggregation in existing system as far as possible, carrier aggregation) concept, namely it is deployed in and authorizes the Serving cell on frequency spectrum as PCC (PrimaryComponentCarrier, main carrier), it is deployed in the Serving cell in unlicensed spectrum as SCC (SecondaryComponentCarrier, auxiliary carrier wave).For unlicensed spectrum, consider its interference level uncontrollable/prediction, LBT (ListenBeforeTalk first intercepts and sends afterwards) technology can effectively avoid the interference between LTE system and other system and the interference between the internal different operators equipment of LTE system.In RAN#64 plenary session (seminar), the communication in unlicensed spectrum is LAA (LicenseAssistedAccess authorizes frequency spectrum auxiliary to access) by Uniform Name.In RAN#65 plenary session, LAA is formally set up the project.
Summary of the invention
In existing cellular network communication system, UE (UserEquipment, subscriber equipment) always performs the transmitting-receiving of wireless signal under the deterministic scheduling controlling in base station, and this deterministic scheduling controlling can be prevented effectively from the conflict between multiple UE.Particularly in wide-band communication system, it is determined that it is the UE running time-frequency resource selecting its channel quality best that the scheduling of property contributes to base station, and then (compare the perfect competition that such as Wifi system adopts and take the mode of resource) is greatly improved spectrum efficiency.The present inventor finds by studying, existing deterministic schedule scheme may encounter a comparatively serious problem in LTELAA communicates: when base station scheduling UE sends wireless signal, if the UE being scheduled performs LBT operation and fails to perform the scheduling of base station, then base station keeps for the described UE running time-frequency resource sending wireless signal just to waste, and namely causes the reduction of spectrum efficiency.For the problems referred to above, the method and apparatus that the invention discloses a kind of LAA communication.
The invention discloses a kind of method in UE, wherein, comprise the steps:
-step A. receives the first signaling and the second signaling, the up transmission in first signaling scheduling very first time window on first carrier, the transmission order in the second signaling instruction described UE very first time window on first carrier
-step B. judges whether to perform the scheduling of the first signaling according to the received signal power detected on first carrier and described transmission order
-step C., if it is determined that perform the scheduling of the first signaling, sends upward signal in the very first time window of first carrier；If it is determined that do not perform the scheduling of the first signaling, the very first time window of first carrier keeps zero transmit power.
Wherein, first carrier is deployed in unlicensed spectrum.
As an embodiment, the index of described transmission order is the integer of the second signaling mark.As an embodiment, the first signaling is physical layer signaling.As an embodiment, the second signaling is high-level signaling, and the second signaling is being deployed on the carrier wave authorizing frequency spectrum and is transmitting.As the information bit that an embodiment, the first signaling and the second signaling are in same DCI (DownlinkControlInformation, Downlink Control Information) respectively.As an embodiment, the second signaling includes 1 bit, and described transmission order is in { the first order, the second order }.
Concrete, according to an aspect of the present invention, it is characterised in that described step B also comprises the steps:
-step the B1. the second time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, judges the scheduling performing the first signaling, if described received signal power is more than described specific threshold, judge the scheduling not performing the first signaling
-step B2. utilizes the first wireless signal to indicate whether to perform the scheduling of the first signaling.
Wherein, described transmission order is the first order, and before the second time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
In above-mentioned aspect, the first order is the order possessing limit priority, and described UE has only to the scheduling utilizing LBT operation namely to can determine whether to perform the first signaling.As an embodiment, if described received signal power is equal to specific threshold, judge the scheduling performing the first signaling.As an embodiment, if described received signal power is equal to specific threshold, judge the scheduling not performing the first signaling.As mono-embodiment of described step B2, if performing the scheduling of the first signaling, first carrier sending the first wireless signal, if not performing the scheduling of the first signaling, the running time-frequency resource of the first wireless signal reserved on first carrier keeping zero transmit power.
Concrete, according to an aspect of the present invention, it is characterised in that described step B also comprises the steps:
-step the B3. the 3rd time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, detect whether the first wireless signal takies very first time window with the equipment determining the first sequential index, if it is determined that the hold facility very first time window of the first sequential index then judges the scheduling not performing the first signaling, if it is determined that the equipment of the first sequential index is not take up very first time window and then judges to perform the scheduling of the first signaling.If described received signal power is more than specific threshold, judge the scheduling not performing the first signaling.
Wherein, described transmission order is the second order, and before the 3rd time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
In above-mentioned aspect, the transmission priority of the second order is lower than the first order, first with LBT operation, described UE determines that described received signal power is less than specific threshold, to determine whether the equipment being configured to the first order takies very first time window further, only when the vacant very first time window of the equipment being configured to the first order, described UE could perform the scheduling (namely sending upward signal) of the first signaling.As an embodiment, if described received signal power is equal to described specific threshold, determine that the equipment of the first sequential index is not take up very first time window.As an embodiment, if described received signal power is equal to specific threshold, determine the hold facility very first time window of the first sequential index.As an embodiment of described step B3, if be detected that the first wireless signal then determines the hold facility very first time window of the first sequential index, without detecting that the first wireless signal then determines that the equipment of the first sequential index is not take up very first time window.
Concrete, according to an aspect of the present invention, it is characterised in that described step B also comprises the steps:
-step B4. sends the second wireless signal and indicates whether to perform the scheduling of the first signaling.
As an embodiment, the reserved frequency domain resource of the second wireless signal is positioned at mandate frequency spectrum.As an embodiment, the second wireless signal includes at least one in { pseudo-random sequence, ZC (Zadoff-Chu) sequence, information bit }.
Concrete, according to an aspect of the present invention, it is characterised in that the first wireless signal includes at least one in { pseudo-random sequence, ZC sequence }.
Concrete, according to an aspect of the present invention, it is characterised in that the reserved frequency domain resource of the first wireless signal is positioned on mandate frequency spectrum, or the reserved frequency domain resource of the first wireless signal is positioned at first carrier.
As an embodiment, the reserved frequency domain resource of the first wireless signal is positioned on mandate frequency spectrum, and the first wireless signal indicates whether the scheduling (scheduling the first wireless signal namely whether performing the first signaling all can be sent) performing the first signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, first signaling is physical layer signaling, mark RNTI (the RadioNetworkTemporaryIdentifier of the first signaling, the tentative mark of wireless network) it is with reference to the value outside RNTI, described is the RNTI for dispatching described UE downlink transfer on first carrier with reference to RNTI.
In above-mentioned aspect, the first signaling is DCI, and CRC (CyclicRedundancyCheck, the cyclic redundancy check (CRC)) bit of the first signaling is by described mark RNTI scrambler.As an embodiment, the first signaling is positioned at the CSS (CommonSearchSpace, public search space) of PDCCH (PhysicalDownlinkControlChannel, Physical Downlink Control Channel).As an embodiment, first signaling is positioned at the USS (UE-specificSearchSpace of PDCCH, UE search volume), the CCE (ControlChannelElement controls Channel Elements) that the first signaling takies is by described mark RNTI instruction.
The invention discloses a kind of method in base station, wherein, comprise the steps:
-step A. sends the first signaling and the second signaling, the up transmission in first signaling scheduling the oneth UE very first time window on first carrier, the transmission order in the second signaling instruction the oneth UE very first time window on first carrier
-step B. judges whether there is upward signal in the very first time window of first carrier.
Wherein, first carrier is deployed in unlicensed spectrum, and a UE is the target UE of the first signaling.
As an embodiment, described base station judges whether upward signal according to the received signal power detected in very first time window on first carrier.As an embodiment, the first wireless signal is detected so that whether auxiliary judgment exists upward signal in described base station.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also comprises the steps:
-step A1. sends the 3rd signaling and the 4th signaling, the up transmission in the 3rd signaling scheduling the 2nd UE very first time window on first carrier, the transmission order in the 4th signaling instruction the 2nd UE very first time window on first carrier
If it is determined that be there is upward signal in the very first time window of first carrier, described step B also comprises the steps:
-step B1. judges the transmission UE of described upward signal.
Wherein, the 2nd UE is the target UE of the 3rd signaling.The transmission order of the oneth UE is the transmission order of the first order and the 2nd UE is the second order, or the transmission order of a UE is the transmission order of the second order and the 2nd UE is the first order, described transmission UE includes { a UE, at least one in 2nd UE}, the frequency domain resource of the 3rd signaling scheduling and the frequency domain resource of the first signaling scheduling are least partially overlapped.
Oneth UE and the two UE Serving cell on first carrier is identical.In said method, base station is being dispatched more than 1 UE on overlapping running time-frequency resource, scheduled UE once determines whether to take described running time-frequency resource according to the transmission order of distribution, once the UE possessing high priority transmission order takies described running time-frequency resource, the UE possessing low priority transmission order abandons occupying described running time-frequency resource.Namely said method avoids UE (determining after performing LBT operation) and does not perform the scheduling resource waste that base station scheduling causes, turn avoid multiple UE and occupies identical running time-frequency resource and clash.
Said method and up MU-MIMO (Multi-UserMultipleInputMultipleOutput, multi-user's multiple-input and multiple-output) it is distinctive in that: multiple users scheduled for up MU-MIMO perform base station scheduling simultaneously, and UE will not be configured transmission order and determine whether to perform the scheduling of base station according to transmission order.
As an embodiment, the 3rd signaling is the first signaling, and namely UE and the two UE shares identical dispatch.This embodiment saves dispatch expense.
Completely overlapped as an embodiment, the frequency domain resource of the 3rd signaling scheduling and the frequency domain resource of the first signaling scheduling.
Concrete, according to an aspect of the present invention, it is characterised in that also comprise the steps:
-step C., if it is determined that the transmission UE that there is upward signal and described upward signal only includes 1 UE, receives upward signal in the very first time window of first carrier；If it is determined that the transmission UE being absent from upward signal or described upward signal includes 2 UE, abandon receiving upward signal in the very first time window of first carrier.
Concrete, according to an aspect of the present invention, it is characterized in that, described base station detection { the first wireless signal, second wireless signal } to judge the transmission UE that whether there is upward signal and described upward signal in the very first time window of first carrier, if described base station only detects the first wireless signal, judge that described transmission UE is a UE, if described base station only detects the second wireless signal, judge that described transmission UE is a UE, if described base station detects the first wireless signal and the second wireless signal, judge that described transmission UE includes UE and the two UE, if described base station is not detected by the first wireless signal and the second wireless signal, judge the very first time window of first carrier is absent from upward signal.
As an embodiment, the first wireless signal includes at least one in { pseudo-random sequence, ZC sequence }.As an embodiment, the reserved frequency domain resource of the second wireless signal is positioned at mandate frequency spectrum, and the second wireless signal includes at least one in { pseudo-random sequence, ZC sequence, information bit }.As an embodiment, the reserved frequency domain resource of the first wireless signal is positioned on mandate frequency spectrum, or the reserved frequency domain resource of the first wireless signal is positioned at first carrier.
The invention discloses a kind of subscriber equipment, it is characterised in that this equipment includes:
First module: be used for receiving the first signaling and the second signaling, the up transmission in first signaling scheduling very first time window on first carrier, the transmission order in the second signaling instruction described UE very first time window on first carrier
Second module: for judging whether to perform the scheduling of the first signaling according to the received signal power detected on first carrier and described transmission order
Three module: for if it is determined that perform the scheduling of the first signaling, sending upward signal in the very first time window of first carrier；If it is determined that do not perform the scheduling of the first signaling, the very first time window of first carrier keeps zero transmit power.
Wherein, first carrier is deployed in unlicensed spectrum.
As an embodiment, the said equipment is characterised by, the second module is additionally operable at least one of:
-. the second time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, judges the scheduling performing the first signaling, if described received signal power is more than described specific threshold, judge the scheduling not performing the first signaling.The first wireless signal is utilized to indicate whether to perform the scheduling of the first signaling.Wherein, described transmission order is the first order, and before the second time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
-. the 3rd time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, detect whether the first wireless signal takies very first time window with the equipment determining the first sequential index, if it is determined that the hold facility very first time window of the first sequential index then judges the scheduling not performing the first signaling, if it is determined that the equipment of the first sequential index is not take up very first time window and then judges to perform the scheduling of the first signaling.If described received signal power is more than specific threshold, judge the scheduling not performing the first signaling.Wherein, described transmission order is the second order, and before the 3rd time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
The invention discloses a kind of base station equipment, it is characterised in that this equipment includes:
First module: be used for sending the first signaling, the second signaling, the 3rd signaling and the 4th signaling.Up transmission in first signaling scheduling the oneth UE very first time window on first carrier, transmission order in second signaling instruction the oneth UE very first time window on first carrier, up transmission in 3rd signaling scheduling the 2nd UE very first time window on first carrier, the transmission order in the 4th signaling instruction the 2nd UE very first time window on first carrier
Second module: for judging whether there is upward signal in the very first time window of first carrier.If it is determined that the very first time window of first carrier is to there is upward signal, it is judged that the transmission UE of described upward signal.
Wherein, first carrier is deployed in unlicensed spectrum, and a UE is the target UE of the first signaling.2nd UE is the target UE of the 3rd signaling.The transmission order of the oneth UE is the transmission order of the first order and the 2nd UE is the second order, or the transmission order of a UE is the transmission order of the second order and the 2nd UE is the first order, described transmission UE includes { a UE, at least one in 2nd UE}, the frequency domain resource of the 3rd signaling scheduling and the frequency domain resource of the first signaling scheduling are least partially overlapped.
As an embodiment, the said equipment is characterised by, this equipment also includes:
Three module: if it is determined that the transmission UE that there is upward signal and described upward signal only includes 1 UE, receives upward signal in the very first time window of first carrier；If it is determined that the transmission UE being absent from upward signal or described upward signal includes 2 UE, abandon receiving upward signal in the very first time window of first carrier.
The essence of the present invention is, base station for same running time-frequency resource dispatch two (even more than) UE, base station is that each UE being scheduled distributes transmission order, said two (even more than) UE determines whether to take described running time-frequency resource according to the transmission order of distribution successively.If the UE possessing high priority transmission order takies described running time-frequency resource, send D2D signal (the first wireless signal) notice and possess the UE (to notify that the latter abandons taking described running time-frequency resource) of low priority transmission order.Compare with existing scheme, the present invention, it can be avoided that UE (performing LBT operation) abandons the wasting of resources that up transmission causes, utilizes the transmission order of configuration to avoid multiple UE being scheduled in identical running time-frequency resource simultaneously and clashes (namely taking described running time-frequency resource) simultaneously.The present invention is applicable to traditional LTE framework, possesses good compatibility.
Accompanying drawing explanation
By reading the detailed description that non-limiting example is made made with reference to the following drawings, the other features, objects and advantages of the present invention will become more apparent:
Fig. 1 illustrates the flow chart carrying out uplink scheduling on LAA carrier wave according to an embodiment of the invention；
Fig. 2 illustrates that the very first time window at LAA carrier wave according to an embodiment of the invention dispatches the flow chart of two UE；
Fig. 3 illustrates very first time window according to an embodiment of the invention, the sequential chart of the second time window and the 3rd time window；
Fig. 4 illustrates the structured flowchart processing device in UE according to an embodiment of the invention；
Fig. 5 illustrates the structured flowchart processing device in base station according to an embodiment of the invention；
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme being described in further detail, it is necessary to explanation, when not conflicting, embodiments herein and the feature in embodiment can arbitrarily be mutually combined.
Embodiment 1
Embodiment 1 illustrates the flow chart carrying out uplink scheduling on LAA carrier wave, as shown in Figure 1.In accompanying drawing 1, base station N1 safeguards the first community, and the first community is UEU2 Serving cell on first carrier.Wherein, in square frame F1 and F2, the step of mark is optional step.
For base station N1, in step s 11, sending the first signaling and the second signaling, the up transmission in first signaling scheduling UEU2 very first time window on first carrier, the transmission order in the second signaling instruction UEU2 very first time window on first carrier is the first order.Judge whether the very first time window of first carrier exists upward signal in step s 12.If it is determined that be absent from upward signal, in step S123, the very first time window of first carrier is abandoned receive upward signal, if it is determined that there is upward signal, judge the transmission UE of described upward signal in the step s 120, step S121 judging the described transmission UE UE number included, if sending UE to only include 1 UE, step S122 receiving in the very first time window of first carrier upward signal；If the transmission UE of described upward signal includes 2 UE, in step S123, abandon receiving upward signal in the very first time window of first carrier.
As the described sub-embodiment abandoning receiving upward signal, the receiver for first carrier is closed in base station in very first time window.As described another the sub-embodiment abandoning receiving upward signal, the reception signal that base station supposes in the very first time window of first carrier is interference noise.
For UEU2, in the step s 21, the first signaling and the second signaling are received.In step S22, judge whether to perform the scheduling of the first signaling according to the received signal power detected on first carrier and the first order.If it is determined that perform the scheduling of the first signaling, in step S220, the very first time window of first carrier sends upward signal；If it is determined that do not perform the scheduling of the first signaling, in step S221, the very first time window of first carrier keeps zero transmit power.In step S222, the first wireless signal is utilized to indicate whether to perform the scheduling of the first signaling.
In embodiment 1, first carrier is deployed in unlicensed spectrum.
As the sub-embodiment 1 of embodiment 1, the second signaling is RRC (RadioResourceControl, wireless heterogeneous networks) signaling.
As the sub-embodiment 2 of embodiment 1, in the step s 120, base station N1 detects the first wireless signal and determines whether UEU1 sends upward signal.
Sub-embodiment 3 as embodiment 1, it is characterised in that the first wireless signal is a characteristic sequence.Whether the appearance of described characteristic sequence carries the information of a bit, or the generation parameter of described characteristic sequence has two kinds of candidate values (being carried the information of a bit by the selection of candidate value).Described characteristic sequence includes at least one in { pseudo-random sequence, ZC sequence }.
As the sub-embodiment 4 of embodiment 1, the reserved frequency domain resource of the first wireless signal is positioned on mandate frequency spectrum.
As the sub-embodiment 5 of embodiment 1, the reserved frequency domain resource of the first wireless signal is positioned at first carrier.
Embodiment 2
Embodiment 2 illustrates the flow chart of very first time window two UE of scheduling at LAA carrier wave, as shown in Figure 2.In accompanying drawing 2, base station N3 safeguards the second community, and the second community is UEU4 and the UEU5 Serving cell at first carrier.
For base station N3, in step S31, send the first signaling, the second signaling, the 3rd signaling the 4th signaling.Up transmission in first signaling scheduling UEU4 very first time window on first carrier, the transmission order in the second signaling instruction UEU4 very first time window on first carrier is the second order.Up transmission in 3rd signaling scheduling UEU5 very first time window on first carrier, the transmission order in the 4th signaling instruction UEU5 very first time window on first carrier is the first order.
For UEU4, in step S41, receive the first signaling and the second signaling.In the step s 420, the 3rd time window detection received signal power on first carrier, judge that whether (the 3rd time window) received signal power is more than specific threshold, if it is judged that be yes, in step S423, in the very first time window of first carrier, then keep zero transmit power, if it is judged that be no, in step S421, then judge whether the equipment (i.e. UEU5) of the first sequential index takies very first time window, if it is determined that the equipment of the first sequential index be not take up very first time window then in step S422 very first time window at first carrier send the second upward signal, in step S423, in the very first time window of first carrier, otherwise then keep zero transmit power.Step S424 utilize the second wireless signal indicate whether to take very first time window (namely whether performing the scheduling of the first signaling).
For UEU5, in step s 51, the 3rd signaling and the 4th signaling are received.In step S520, the second time window detection received signal power on first carrier, judge that whether (the second time window) received signal power is more than specific threshold, if it is judged that be no, step S521 sends the first upward signal in the very first time window of first carrier, if it is judged that be yes, step S522 keeps in the very first time window of first carrier zero transmit power.Step S523 utilize the first wireless signal indicate whether to take very first time window (namely whether performing the scheduling of the 3rd signaling).The intended receivers of the first wireless signal includes UEU4 (execution for additional step S421).With base station N3 (for whether there is the transmission UE of upward signal and upward signal in auxiliary judgment very first time window).The intended receivers of the second wireless signal at least includes base station N3 (for whether there is the transmission UE of upward signal and upward signal in auxiliary judgment very first time window), it is possible to also include UEU5.
In embodiment 2, first carrier is deployed in unlicensed spectrum, and described specific threshold is configurable or predetermined.
Embodiment 3
The very first time window that embodiment 3 example is heretofore described, the sequential chart of the second time window and the 3rd time window, as shown in Figure 3.In accompanying drawing 3, oblique line mark very first time window, backslash identifies the second time window, thick line mark the 3rd time window.
Second time window be very first time window before one shorter time gap, the 3rd time window is made up of two parts, and before Part I is positioned at very first time window, Part II is positioned among very first time window (namely after very first time window).
As the sub-embodiment 1 of embodiment 3, described first wireless signal in the present invention be arranged in the 3rd time window Part II (as accompanying drawing 3 W1 identify).
As the sub-embodiment 2 of embodiment 3, after described second wireless signal in the present invention is arranged in the 3rd time window (as accompanying drawing 3 W2 identify).
Embodiment 4
Embodiment 4 illustrates the structured flowchart processing device in UE, as shown in Figure 4.In accompanying drawing 4, UE processes device 200 by receiver module 201, it is judged that module 202 and processing module 203 form.
Receiver module 201 is used for receiving the first signaling and the second signaling, the up transmission in first signaling scheduling very first time window on first carrier, the transmission order in the second signaling instruction described UE very first time window on first carrier.Judge module 202 is for judging whether to perform the scheduling of the first signaling according to the received signal power detected on first carrier and described transmission order.Processing module 203 for if it is determined that perform the scheduling of the first signaling, sending upward signal in the very first time window of first carrier；If it is determined that do not perform the scheduling of the first signaling, the very first time window of first carrier keeps zero transmit power.Wherein, first carrier is deployed in unlicensed spectrum.
As the sub-embodiment 1 of embodiment 4, if described transmission order is the first order, the second module is additionally operable to:
-. the second time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, judges the scheduling performing the first signaling, if described received signal power is more than described specific threshold, judge the scheduling not performing the first signaling.The first wireless signal is utilized to indicate whether to perform the scheduling of the first signaling.Wherein, before the second time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
If described transmission order is the second order, the second module is additionally operable to:
-. the 3rd time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, detect whether the first wireless signal takies very first time window with the equipment determining the first sequential index, if it is determined that the hold facility very first time window of the first sequential index then judges the scheduling not performing the first signaling, if it is determined that the equipment of the first sequential index is not take up very first time window and then judges to perform the scheduling of the first signaling.If described received signal power is more than specific threshold, judge the scheduling not performing the first signaling.Wherein, before the 3rd time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
As the sub-embodiment 2 of embodiment 4, the first signaling is DCI, and the second signaling is RRC signaling.
As the sub-embodiment 3 of embodiment 4, the first signaling is DCI, and the mark RNTI of the first signaling is with reference to the value outside RNTI, and described is the RNTI for dispatching described UE downlink transfer on first carrier with reference to RNTI.
Same DCI is belonged to as the sub-embodiment 4 of embodiment 4, the first signaling and the second signaling.Namely base station can dynamically configure the transmission order of UE, improves configuration flexibility.
Embodiment 5
Embodiment 5 illustrates the structured flowchart processing device in base station, as shown in Figure 5.In accompanying drawing 5, base station processes device 300 by sending module 301, it is judged that module 302 and processing module 303 form.Wherein processing module 303 is optional module.
Receiver module 301 is used for sending the first signaling, the second signaling, the 3rd signaling and the 4th signaling.Up transmission in first signaling scheduling the oneth UE very first time window on first carrier, transmission order in second signaling instruction the oneth UE very first time window on first carrier, up transmission in 3rd signaling scheduling the 2nd UE very first time window on first carrier, the transmission order in the 4th signaling instruction the 2nd UE very first time window on first carrier.Judge module 302 is for judging whether there is upward signal in the very first time window of first carrier.If it is determined that the very first time window of first carrier is to there is upward signal, it is judged that the transmission UE of described upward signal.Processing module 303 for if it is determined that the transmission UE that there is upward signal and described upward signal only includes 1 UE, receiving upward signal in the very first time window of first carrier；If it is determined that the transmission UE being absent from upward signal or described upward signal includes 2 UE, abandon receiving upward signal in the very first time window of first carrier.
In embodiment 5, first carrier is deployed in unlicensed spectrum, and a UE is the target UE of the first signaling.2nd UE is the target UE of the 3rd signaling.The transmission order of the oneth UE is the transmission order of the first order and the 2nd UE is the second order, or the transmission order of a UE is the transmission order of the second order and the 2nd UE is the first order, described transmission UE includes { a UE, at least one in 2nd UE}, the frequency domain resource of the 3rd signaling scheduling and the frequency domain resource of the first signaling scheduling are least partially overlapped.
As the sub-embodiment 1 of embodiment 5, the first signaling is the 3rd signaling, and the first signaling is physical layer signaling (namely UE and the two UE shares the mark RNTI of the identical DCI for uplink scheduling).
One of ordinary skill in the art will appreciate that all or part of step in said method can be carried out instruction related hardware by program and complete, described program can be stored in computer-readable recording medium, such as read only memory, hard disk or CD etc..Optionally, all or part of step of above-described embodiment can also use one or more integrated circuit to realize.Accordingly, each modular unit in above-described embodiment, it is possible to adopt example, in hardware to realize, it is also possible to being 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.Described UE in the present invention includes but not limited to the Wireless Telecom Equipments such as mobile phone, notebook, panel computer, card of surfing Internet, and the described base station in the present invention includes but not limited to eNB, macrocell base stations, microcell base station, Home eNodeB, the Wireless Telecom Equipment such as relay base station.
The above, be only presently preferred embodiments of the present invention, is not intended to limit protection scope of the present invention.All within the spirit and principles in the present invention, any amendment made, equivalent replace, improvement etc., should be included within protection scope of the present invention.
Claims (16)
1. the method in UE, wherein, comprises the steps:
-step A. receives the first signaling and the second signaling, the up transmission in first signaling scheduling very first time window on first carrier, the transmission order in the second signaling instruction described UE very first time window on first carrier
-step B. judges whether to perform the scheduling of the first signaling according to the received signal power detected on first carrier and described transmission order
-step C., if it is determined that perform the scheduling of the first signaling, sends upward signal in the very first time window of first carrier；If it is determined that do not perform the scheduling of the first signaling, the very first time window of first carrier keeps zero transmit power.
Wherein, first carrier is deployed in unlicensed spectrum.
2. method according to claim 1, it is characterised in that described step B also comprises the steps:
-step the B1. the second time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, judges the scheduling performing the first signaling, if described received signal power is more than described specific threshold, judge the scheduling not performing the first signaling
-step B2. utilizes the first wireless signal to indicate whether to perform the scheduling of the first signaling.
Wherein, described transmission order is the first order, and before the second time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
3. method according to claim 1, it is characterised in that described step B also comprises the steps:
-step the B3. the 3rd time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, detect whether the first wireless signal takies very first time window with the equipment determining the first sequential index, if it is determined that the hold facility very first time window of the first sequential index then judges the scheduling not performing the first signaling, if it is determined that the equipment of the first sequential index is not take up very first time window and then judges to perform the scheduling of the first signaling.If described received signal power is more than specific threshold, judge the scheduling not performing the first signaling.
Wherein, described transmission order is the second order, and before the 3rd time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
4. method according to claim 3, it is characterised in that described step B also comprises the steps:
-step B4. sends the second wireless signal and indicates whether to perform the scheduling of the first signaling.
5. the method according to claim 2-4, it is characterised in that the first wireless signal includes at least one in { pseudo-random sequence, ZC sequence }.
6. the method according to claim 2-5, it is characterised in that the reserved frequency domain resource of the first wireless signal is positioned on mandate frequency spectrum, or the reserved frequency domain resource of the first wireless signal is positioned at first carrier.
7. the method according to claim 2-6, it is characterised in that the first signaling is physical layer signaling, the mark RNTI of the first signaling is with reference to the value outside RNTI, and described is the RNTI for dispatching described UE downlink transfer on first carrier with reference to RNTI.
8. the method in base station, wherein, comprises the steps:
-step A. sends the first signaling and the second signaling, the up transmission in first signaling scheduling the oneth UE very first time window on first carrier, the transmission order in the second signaling instruction the oneth UE very first time window on first carrier
-step B. judges whether there is upward signal in the very first time window of first carrier.
Wherein, first carrier is deployed in unlicensed spectrum, and a UE is the target UE of the first signaling.
9. method according to claim 8, it is characterised in that described step A also comprises the steps:
-step A1. sends the 3rd signaling and the 4th signaling, the up transmission in the 3rd signaling scheduling the 2nd UE very first time window on first carrier, the transmission order in the 4th signaling instruction the 2nd UE very first time window on first carrier
If it is determined that be there is upward signal in the very first time window of first carrier, described step B also comprises the steps:
-step B1. judges the transmission UE of described upward signal.
Wherein, the 2nd UE is the target UE of the 3rd signaling.The transmission order of the oneth UE is the transmission order of the first order and the 2nd UE is the second order, or the transmission order of a UE is the transmission order of the second order and the 2nd UE is the first order, described transmission UE includes { a UE, at least one in 2nd UE}, the frequency domain resource of the 3rd signaling scheduling and the frequency domain resource of the first signaling scheduling are least partially overlapped.
10. according to Claim 8, the method described in 9, it is characterised in that also comprise the steps:
-step C., if it is determined that the transmission UE that there is upward signal and described upward signal only includes 1 UE, receives upward signal in the very first time window of first carrier；If it is determined that the transmission UE being absent from upward signal or described upward signal includes 2 UE, abandon receiving upward signal in the very first time window of first carrier.
11. method according to claim 10, it is characterized in that, described base station detection { the first wireless signal, second wireless signal } to judge the transmission UE that whether there is upward signal and described upward signal in the very first time window of first carrier, if described base station only detects the first wireless signal, judge that described transmission UE is a UE, if described base station only detects the second wireless signal, judge that described transmission UE is a UE, if described base station detects the first wireless signal and the second wireless signal, judge that described transmission UE includes UE and the two UE, if described base station is not detected by the first wireless signal and the second wireless signal, judge the very first time window of first carrier is absent from upward signal.
12. the method according to claim 9-11, it is characterised in that the first signaling and the 3rd signaling are same physical layer signalings.
13. a subscriber equipment, it is characterised in that this equipment includes:
First module: be used for receiving the first signaling and the second signaling, the up transmission in first signaling scheduling very first time window on first carrier, the transmission order in the second signaling instruction described UE very first time window on first carrier
Second module: for judging whether to perform the scheduling of the first signaling according to the received signal power detected on first carrier and described transmission order
Three module: for if it is determined that perform the scheduling of the first signaling, sending upward signal in the very first time window of first carrier；If it is determined that do not perform the scheduling of the first signaling, the very first time window of first carrier keeps zero transmit power.
Wherein, first carrier is deployed in unlicensed spectrum.
14. equipment according to claim 13, it is characterised in that the second module is additionally operable at least one of:
-. the second time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, judges the scheduling performing the first signaling, if described received signal power is more than described specific threshold, judge the scheduling not performing the first signaling.The first wireless signal is utilized to indicate whether to perform the scheduling of the first signaling.Wherein, described transmission order is the first order, and before the second time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
-. the 3rd time window on first carrier detects described received signal power.If described received signal power is less than specific threshold, detect whether the first wireless signal takies very first time window with the equipment determining the first sequential index, if it is determined that the hold facility very first time window of the first sequential index then judges the scheduling not performing the first signaling, if it is determined that the equipment of the first sequential index is not take up very first time window and then judges to perform the scheduling of the first signaling.If described received signal power is more than specific threshold, judge the scheduling not performing the first signaling.Wherein, described transmission order is the second order, and before the 3rd time window is positioned at very first time window, described specific threshold is predetermined or is configured by base station.
15. a base station equipment, it is characterised in that this equipment includes:
First module: be used for sending the first signaling, the second signaling, the 3rd signaling and the 4th signaling.Up transmission in first signaling scheduling the oneth UE very first time window on first carrier, transmission order in second signaling instruction the oneth UE very first time window on first carrier, up transmission in 3rd signaling scheduling the 2nd UE very first time window on first carrier, the transmission order in the 4th signaling instruction the 2nd UE very first time window on first carrier
Second module: for judging whether there is upward signal in the very first time window of first carrier.If it is determined that the very first time window of first carrier is to there is upward signal, it is judged that the transmission UE of described upward signal.
Wherein, first carrier is deployed in unlicensed spectrum, and a UE is the target UE of the first signaling.2nd UE is the target UE of the 3rd signaling.The transmission order of the oneth UE is the transmission order of the first order and the 2nd UE is the second order, or the transmission order of a UE is the transmission order of the second order and the 2nd UE is the first order, described transmission UE includes { a UE, at least one in 2nd UE}, the frequency domain resource of the 3rd signaling scheduling and the frequency domain resource of the first signaling scheduling are least partially overlapped.
16. equipment according to claim 15, it is characterised in that this equipment also includes:
Three module: if it is determined that the transmission UE that there is upward signal and described upward signal only includes 1 UE, receives upward signal in the very first time window of first carrier；If it is determined that the transmission UE being absent from upward signal or described upward signal includes 2 UE, abandon receiving upward signal in the very first time window of first carrier.
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110191515B (en) | 2022-06-17 |
| CN105763308B (en) | 2019-09-06 |
| CN110191515A (en) | 2019-08-30 |
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