CN105763308B - A kind of method and apparatus of LAA communication - Google Patents
A kind of method and apparatus of LAA communication Download PDFInfo
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- CN105763308B CN105763308B CN201410822028.3A CN201410822028A CN105763308B CN 105763308 B CN105763308 B CN 105763308B CN 201410822028 A CN201410822028 A CN 201410822028A CN 105763308 B CN105763308 B CN 105763308B
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Abstract
The invention proposes a kind of method and apparatus of LAA communication.UE receives the first signaling and the second signaling in step 1, and uplink of first signaling scheduling in the first time window on first carrier is sent, and the second signaling indicates transmission sequence of the UE in the first time window on first carrier.In step 2, judge whether the scheduling for executing the first signaling according to the received signal power detected on first carrier and transmission sequence.In step 3, determined whether to send uplink signal in the first time window of first carrier according to judging result.Wherein, first carrier is deployed in unlicensed spectrum.The present invention can be avoided UE and abandon the wasting of resources caused by uplink is sent, while avoiding multiple UE for being scheduled in identical running time-frequency resource using the transmission of configuration sequence and clashing.
Description
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).It is complete at RAN#65 times
In meeting, LAA is formally set up the project.
Summary of the invention
In existing cellular network communication system, UE (User Equipment, user equipment) is always deterministic in base station
The transmitting-receiving of wireless signal is executed under scheduling controlling, which can effectively avoid rushing between multiple UE
It is prominent.Especially in wide-band communication system, it is the time-frequency that UE selects its channel quality best that deterministic scheduling, which facilitates base station,
Resource, in turn (compared to such as Wifi system using perfect competition occupy resource by the way of) greatly improve spectrum efficiency.This hair
It is bright inventors discovered through research that, existing deterministic schedule scheme may encounter one more in LTE LAA communication
Serious problem: when UE transmission wireless signal is dispatched in base station, if scheduled UE executes LBT operation and fails to execute base station
Scheduling, the then running time-frequency resource that base station keeps for the UE to send wireless signal just waste, that is, lead to the reduction of spectrum efficiency.Needle
To the above problem, the invention discloses a kind of method and apparatus of LAA communication.
The invention discloses a kind of methods in UE, wherein includes the following steps:
Step A. receives the first signaling and the second signaling, and the first signaling scheduling is in the first time window on first carrier
Uplink send, the second signaling indicate the UE in the first time window on first carrier transmission sequence
Step B. judges whether to execute according to the received signal power detected on first carrier and transmission sequence
The scheduling of first signaling
Step C. is if it is determined that execute the scheduling of the first signaling, and transmission uplink is believed in the first time window of first carrier
Number；If it is determined that not executing the scheduling of the first signaling, zero is kept to send power in the first time window of first carrier.
Wherein, first carrier is deployed in unlicensed spectrum.
As one embodiment, the index of the transmission sequence is the integer of the second signaling mark.As one embodiment,
First signaling is physical layer signaling.As one embodiment, the second signaling is high-level signaling, and the second signaling is being deployed in authorization frequency
It is transmitted on the carrier wave of spectrum.As one embodiment, the first signaling and the second signaling are the same DCI (Downlink respectively
Control Information, Downlink Control Information) in information bit.As one embodiment, the second signaling includes 1
Bit, the transmission sequence are one in { the first sequence, the second sequence }.
Specifically, according to an aspect of the present invention, which is characterized in that the step B further includes following steps:
Second time window of the step B1. on first carrier detects the received signal power.If the reception signal
Power is less than specific threshold and then judges to execute the scheduling of the first signaling, if the received signal power is greater than the specific threshold
Then judge the scheduling for not executing the first signaling
Step B2. indicates whether to execute the scheduling of the first signaling using the first wireless signal.
Wherein, the transmission sequence is the first sequence, and the second time window is located at before first time window, the specific threshold
It is predetermined either by base station configuration.
In above-mentioned aspect, the first sequence is that have the sequence of highest priority, and the UE only needs to operate using LBT
Judge whether the scheduling of the first signaling of execution.As one embodiment, if the received signal power is equal to specific threshold
Judgement executes the scheduling of the first signaling.As one embodiment, judge if the received signal power is equal to specific threshold
The scheduling of the first signaling is not executed.As described step B2 one embodiment, first if the scheduling for executing the first signaling
The first wireless signal is sent on carrier wave, the first wireless communication reserved on first carrier if the scheduling for not executing the first signaling
Number running time-frequency resource on keep zero send power.
Specifically, according to an aspect of the present invention, which is characterized in that the step B further includes following steps:
Third time window of the step B3. on first carrier detects the received signal power.If the reception signal
The specific threshold that power is less than then detects the first wireless signal and whether occupies first time window with the equipment for determining the first sequential index,
If it is determined that the equipment of the first sequential index, which occupies first time window, then judges the scheduling for not executing the first signaling, if it is determined that the
The equipment of one sequential index is not take up first time window and then judges to execute the scheduling of the first signaling.If the received signal power
The scheduling for not executing the first signaling is then judged greater than specific threshold.
Wherein, the transmission sequence is the second sequence, and third time window is located at before first time window, the specific threshold
It is predetermined either by base station configuration.
In above-mentioned aspect, lower than the first sequence, the UE is operated first with LBT and is determined the transmission priority of the second sequence
The received signal power is less than specific threshold, when further determining whether the equipment for being configured as the first sequence occupies first
Between window, only under conditions of the equipment for being configured as the first sequence vacant first time window, the UE could execute first
The scheduling (i.e. transmission uplink signal) of signaling.As one embodiment, if the received signal power is equal to the certain threshold
Value then determines that the equipment of the first sequential index is not take up first time window.As one embodiment, if the reception signal function
Rate is equal to the equipment that specific threshold then determines the first sequential index and occupies first time window.An implementation as the step B3
Example, the equipment that the first sequential index is determined if detecting the first wireless signal occupies first time window, if do not detected
Then determine that the equipment of the first sequential index is not take up first time window to the first wireless signal.
Specifically, according to an aspect of the present invention, which is characterized in that the step B further includes following steps:
Step B4. sends second wireless singal and indicates whether to execute the scheduling of the first signaling.
As one embodiment, the reserved frequency domain resource of second wireless singal is located at authorization frequency spectrum.As one embodiment,
Second wireless singal includes at least one of { pseudo-random sequence, ZC (Zadoff-Chu) sequence, information bit }.
Specifically, according to an aspect of the present invention, which is characterized in that the first wireless signal includes { pseudo-random sequence, ZC
At least one of sequence }.
Specifically, according to an aspect of the present invention, which is characterized in that the reserved frequency domain resource of the first wireless signal is located at
On authorization frequency spectrum or the reserved frequency domain resource of the first wireless signal is located at first carrier.
As one embodiment, the reserved frequency domain resource of the first wireless signal is located on authorization frequency spectrum, the first wireless signal
Indicate whether execute the first signaling scheduling (the first wireless signal of scheduling for whether executing the first signaling can all be sent out
It send).
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is physical layer signaling, the first signaling
Mark RNTI (Radio Network Temporary Identifier, wireless network tentative mark) be with reference to except RNTI
Value, described with reference to RNTI is RNTI for dispatching downlink transfer of the UE on first carrier.
In above-mentioned aspect, the first signaling is DCI, and (Cyclic Redundancy Check is recycled superfluous the CRC of the first signaling
Remaining verification) bit is by the mark RNTI scrambling code.As one embodiment, the first signaling is located at PDCCH (Physical
Downlink Control Channel, Physical Downlink Control Channel) CSS (Common Search Space, common search
Space).As one embodiment, the first signaling is located at USS (UE-specific Search Space, UE the search sky of PDCCH
Between), the CCE (Control Channel Element, control channel unit) that the first signaling occupies is referred to by the mark RNTI
Show.
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, the first UE of the first signaling scheduling on first carrier first when
Between uplink in window send, the second signaling indicates transmission sequence of the first UE in the first time window on first carrier
Step B. judges in the first time window of first carrier with the presence or absence of uplink signal.
Wherein, first carrier is deployed in unlicensed spectrum, and the first UE is the target UE of the first signaling.
As one embodiment, the base station is according to the reception signal function detected in first time window on first carrier
Rate judges whether there is uplink signal.As one embodiment, the base station detect the first wireless signal with auxiliary judgment whether
There are uplink signals.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. sends third signaling and the 4th signaling, the 2nd UE of third signaling scheduling on first carrier first when
Between uplink in window send, the 4th signaling indicates transmission sequence of the 2nd UE in the first time window on first carrier
If it is determined that being there are uplink signal in the first time window of first carrier, the step B further includes following steps:
Step B1. judges the transmission UE of the uplink signal.
Wherein, the 2nd UE is the target UE of third signaling.The transmission sequence of first UE is the first sequence and the hair of the 2nd UE
Send sequence be second sequence or the first UE transmission sequence be second sequence and the 2nd UE transmission sequence be first sequence,
The transmission UE includes at least one of { the first UE, the 2nd UE }, the frequency domain resource of third signaling scheduling and the first signaling tune
The frequency domain resource of degree is least partially overlapped.
Serving cell of first UE and the 2nd UE on first carrier is identical.In the above method, base station is in overlapping
More than 1 UE is dispatched on running time-frequency resource, scheduled UE successively determines whether to occupy the time-frequency according to the transmission sequence of distribution
Resource, once the UE for having high priority transmission sequence occupies the running time-frequency resource, the UE for having low priority transmission sequence is put
Abandoning occupies the running time-frequency resource.The above method is to avoid UE (determining after executing LBT operation) and do not execute base station and dispatch to cause
The scheduling wasting of resources, in turn avoid multiple UE and occupy identical running time-frequency resource and clash.
(Multi-User Multiple Input Multiple Output is mostly used by the above method and uplink MU-MIMO
Family multiple-input and multiple-output) difference be: multiple users scheduled in uplink MU-MIMO be performed simultaneously base station scheduling, UE will not
It is configured transmission sequence and determines whether to execute the scheduling of base station according to transmission sequence.
As one embodiment, third signaling is the first signaling, i.e. the first UE and the 2nd UE shares identical dispatch.
The embodiment saves dispatch expense.
As one embodiment, the frequency domain resource of the frequency domain resource of third signaling scheduling and the first signaling scheduling is completely heavy
It is folded.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step C. is if it is determined that there are the transmission UE of uplink signal and the uplink signal to only include 1 UE, in the first load
Uplink signal is received in the first time window of wave；If it is determined that there is no uplink signal or the transmission UE packets of the uplink signal
2 UE are included, abandon receiving uplink signal in the first time window of first carrier.
Specifically, according to an aspect of the present invention, which is characterized in that base station detection the first wireless signal, second
Wireless signal } in first time window to judge first carrier with the presence or absence of the transmission of uplink signal and the uplink signal
UE judges that the transmission UE is the first UE, if the base station is only examined if the base station only detects the first wireless signal
It measures second wireless singal and then judges that the transmission UE is the first UE, if the base station detects the first wireless signal and second
Wireless signal then judge the transmission UE include the first UE and the 2nd UE, if the base station be not detected the first wireless signal and
Second wireless singal then judges that there is no uplink signals in the first time window of first carrier.
As one embodiment, the first wireless signal includes at least one of { pseudo-random sequence, ZC sequence }.As one
A embodiment, the reserved frequency domain resource of second wireless singal are located at authorization frequency spectrum, second wireless singal include pseudo-random sequence,
At least one of ZC sequence, information bit }.As one embodiment, the reserved frequency domain resource of the first wireless signal, which is located at, is awarded
On power frequency spectrum or the reserved frequency domain resource of the first wireless signal is located at first carrier.
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, the first signaling scheduling on first carrier first when
Between uplink in window send, the second signaling indicates transmission sequence of the UE in the first time window on first carrier
Second module: for being according to the received signal power detected on first carrier and transmission sequence judgement
The no scheduling for executing the first signaling
Third module: for if it is determined that execute the first signaling scheduling, sent in the first time window of first carrier
Uplink signal；If it is determined that not executing the scheduling of the first signaling, zero is kept to send power in the first time window of first carrier.
Wherein, first carrier is deployed in unlicensed spectrum.
As one embodiment, above equipment is characterized in that, the second module is also used at least one of:
The second time window of-on first carrier detects the received signal power.If the received signal power is small
The scheduling of the first signaling of execution is then judged in specific threshold, is judged if the received signal power is greater than the specific threshold
The scheduling of the first signaling is not executed.The scheduling of the first signaling of execution is indicated whether using the first wireless signal.Wherein, the transmission
Sequence is the first sequence, and the second time window is located at before first time window, the specific threshold be predetermined or by
Base station configuration.
The third time window of-on first carrier detects the received signal power.If the received signal power is small
The first wireless signal is then detected in specific threshold, whether first time window is occupied with the equipment for determining the first sequential index, if really
The equipment of fixed first sequential index occupies first time window and then judges the scheduling for not executing the first signaling, if it is determined that the first sequence
The equipment of index is not take up first time window and then judges to execute the scheduling of the first signaling.If the received signal power is greater than spy
Determine threshold value and then judges the scheduling for not executing the first signaling.Wherein, transmission sequence is the second sequence, and third time window is located at the
Before one time window, the specific threshold is predetermined either by base station configuration.
The invention discloses a kind of base station equipments, which is characterized in that the equipment includes:
First module: for sending the first signaling, the second signaling, third signaling and the 4th signaling.First signaling scheduling
Uplink of one UE in the first time window on first carrier is sent, and the second signaling indicates first of the first UE on first carrier
Transmission sequence in time window, uplink of the 2nd UE of third signaling scheduling in the first time window on first carrier are sent, the
Four signalings indicate transmission sequence of the 2nd UE in the first time window on first carrier
Second module: it whether there is uplink signal in the first time window for judging first carrier.If it is determined that first
It is the transmission UE that the uplink signal is judged there are uplink signal in the first time window of carrier wave.
Wherein, first carrier is deployed in unlicensed spectrum, and the first UE is the target UE of the first signaling.2nd UE is third letter
The target UE of order.The transmission sequence of first UE is first sequentially and the transmission of the 2nd UE sequence is the second sequence or the first UE
Transmission sequence be second sequence and the 2nd UE transmission sequence be first sequence, the transmissions UE including the first UE, second
At least one of UE }, the frequency domain resource of the frequency domain resource of third signaling scheduling and the first signaling scheduling is least partially overlapped.
As one embodiment, above equipment is characterized in that, the equipment further include:
Third module: if it is determined that there are the transmission UE of uplink signal and the uplink signal to only include 1 UE, first
Uplink signal is received in the first time window of carrier wave；If it is determined that there is no uplink signal or the transmission UE of the uplink signal
Including 2 UE, abandon receiving uplink signal in the first time window of first carrier.
Essence of the invention is that two (even more than) UE are dispatched for same running time-frequency resource in base station, and base station is each
Scheduled UE distributes a transmission sequence, and described two (even more than) UE successively determine whether according to the transmission sequence of distribution
Occupy the running time-frequency resource.The UE for having high priority transmission sequence sends D2D signal (if occupying the running time-frequency resource
One wireless signal) notify the UE for having low priority transmission sequence (notify the latter to abandon occupying the running time-frequency resource).With it is existing
There is scheme to compare, the present invention can be avoided UE (executing LBT operation) and abandon the wasting of resources caused by uplink is sent, while utilizing and matching
The transmission sequence set, which avoids multiple UE for being scheduled in identical running time-frequency resource and clashes, (i.e. while to be occupied the time-frequency and provides
Source).The present invention is suitable for traditional LTE framework, has good compatibility.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart according to an embodiment of the invention that uplink scheduling is carried out on LAA carrier wave；
Fig. 2 shows the streams that the first time window according to an embodiment of the invention in LAA carrier wave dispatches two UE
Cheng Tu；
Fig. 3 shows first time window according to an embodiment of the invention, the second time window and third time window
Timing diagram；
Fig. 4 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 5 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart that uplink scheduling 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 serving cell of the UE U2 on first carrier.Wherein, it is identified in box F1 and F2
Step is optional step.
For base station N1, in step s 11, the first signaling and the second signaling are sent, the first signaling scheduling UE U2 is first
Uplink in first time window on carrier wave is sent, and the second signaling indicates UE U2 in the first time window on first carrier
Transmission sequence is the first sequence.Judged in the first time window of first carrier in step s 12 with the presence or absence of uplink signal.If
Uplink signal is not present in judgement, in step S123, abandons receiving uplink signal in the first time window of first carrier, if
There are uplink signals for judgement, judge the transmission UE of the uplink signal in the step s 120, the hair is judged in step S121
The UE number that UE includes is sent, if sending UE only includes 1 UE, is connect in the first time window of first carrier in step S122
Receive uplink signal；If the transmission UE of the uplink signal includes 2 UE, in step S123, in the first of first carrier
Between abandon in window receiving uplink signal.
As a sub- embodiment for abandoning receiving uplink signal, base station is closed in first time window for first
The receiver of carrier wave.As the another sub- embodiment for abandoning receiving uplink signal, base station assumes the of first carrier
Reception signal in one time window is interference noise.
For UE U2, in the step s 21, the first signaling and the second signaling are received.In step S22, carried according to first
The received signal power and the first sequence detected on wave judges whether to execute the scheduling of the first signaling.If it is determined that executing first
The scheduling of signaling sends uplink signal in the first time window of first carrier in step S220；If it is determined that not executing
The scheduling of one signaling keeps zero to send power in step S221 in the first time window of first carrier.In step S222
In, the scheduling for executing the first signaling is indicated whether using the first wireless signal.
In embodiment 1, first carrier is deployed in unlicensed spectrum.
As the sub- embodiment 1 of embodiment 1, the second signaling is RRC (Radio Resource Control, radio resource
Control) signaling.
As the sub- embodiment 2 of embodiment 1, in the step s 120, base station N1 detects the first wireless signal and determines that UE U1 is
No transmission uplink signal.
Sub- embodiment 3 as embodiment 1, which is characterized in that the first wireless signal is a characteristic sequence.The feature
The information that a bit is carried whether appearance of sequence or the generation parameter of the characteristic sequence (pass through there are two types of candidate value
The selection of candidate value carries the information of a bit).The characteristic sequence includes at least one in { pseudo-random sequence, ZC sequence }
Kind.
As the sub- embodiment 4 of embodiment 1, the reserved frequency domain resource of the first wireless signal is located on authorization frequency spectrum.
As the sub- embodiment 5 of embodiment 1, the reserved frequency domain resource of the first wireless signal is located at first carrier.
Embodiment 2
Embodiment 2 illustrates the flow chart in two UE of first time window scheduling of LAA carrier wave, as shown in Fig. 2.Attached drawing
In 2, base station N3 safeguards second community, and second community is serving cell of UE U4 and the UE U5 in first carrier.
For base station N3, in step S31, the first signaling, the second signaling, the 4th signaling of third signaling are sent.First letter
Uplink of the scheduling UE U4 in the first time window on first carrier is enabled to send, the second signaling indicates UE U4 on first carrier
First time window in transmission sequence be second sequence.First time window of the third signaling scheduling UE U5 on first carrier
In uplink send, the 4th signaling indicates that transmission sequence of the UE U5 in first time window on first carrier is the first sequence.
For UE U4, in step S41, the first signaling and the second signaling are received.In the step s 420, in first carrier
On third time window detect received signal power, judgement (third time window) received signal power whether be greater than certain threshold
Value, if it is judged that be it is yes, then in step S423 in the first time window of first carrier keep zero transmission power, if
Judging result be it is no, then judge whether the equipment (i.e. UE U5) of the first sequential index occupies first time window in step S421,
If it is determined that the equipment of the first sequential index is not take up first time window then in step S422 in the first time of first carrier
Window sends the second uplink signal, otherwise then keeps zero to send power in the first time window of first carrier in step S423.
Indicate whether to occupy whether first time window (performs the tune of the first signaling using second wireless singal in step S424
Degree).
For UE U5, in step s 51, third signaling and the 4th signaling are received.In step S520, in first carrier
On the second time window detect received signal power, judgement (the second time window) received signal power whether be greater than certain threshold
Value, if it is judged that be it is no, send the first uplink signal in the first time window of first carrier in step S521, if
Judging result be it is yes, in step S522 in the first time window of first carrier keep zero send power.In step S523
Indicate whether to occupy first time window (whether performing the scheduling of third signaling) using the first wireless signal.First wireless communication
Number intended receivers include UE U4 (execution for additional step S421).(at the first time for auxiliary judgment with base station N3
With the presence or absence of uplink signal and the transmission UE of uplink signal in window).The intended receivers of second wireless singal include at least base
Stand N3 (for whether there is the transmission UE of uplink signal and uplink signal in auxiliary judgment first time window), may further include
UE U5。
In embodiment 2, first carrier is deployed in unlicensed spectrum, and the specific threshold is configurable either true in advance
Fixed.
Embodiment 3
The heretofore described first time window of 3 example of embodiment, the timing diagram of the second time window and third time window, such as
Shown in attached drawing 3.In attached drawing 3, oblique line identifies first time window, and backslash identifies the second time window, and thick line identifies third time window.
Second time window be first time window before it is one shorter when gap, third time window consists of two parts, first
Part is located at before first time window, and second part is located among first time window (i.e. after first time window).
As the sub- embodiment 1 of embodiment 3, first wireless signal in the present invention is located at the second of third time window
Partially (as the W1 in attached drawing 3 is identified).
As the sub- embodiment 2 of embodiment 3, the second wireless singal in the present invention is located at after third time window
(as the W2 in attached drawing 3 is identified).
Embodiment 4
Embodiment 4 illustrates the structural block diagram of the processing unit in UE, as shown in Fig. 4.In attached drawing 4, UE processing unit
200 are made of receiving module 201, judgment module 202 and processing module 203.
Receiving module 201 for receiving the first signaling and the second signaling, the first signaling scheduling on first carrier first
Uplink in time window is sent, and the second signaling indicates transmission sequence of the UE in the first time window on first carrier.Sentence
Disconnected module 202 is used to judge whether according to the received signal power detected and the transmission sequence execution the on first carrier
The scheduling of one signaling.Processing module 203 is used for if it is determined that the scheduling of the first signaling is executed, in the first time window of first carrier
Middle transmission uplink signal；If it is determined that not executing the scheduling of the first signaling, zero hair is kept in the first time window of first carrier
Send power.Wherein, first carrier is deployed in unlicensed spectrum.
As the sub- embodiment 1 of embodiment 4, if transmission sequence is the first sequence, the second module is also used to:
The second time window of-on first carrier detects the received signal power.If the received signal power is small
The scheduling of the first signaling of execution is then judged in specific threshold, is judged if the received signal power is greater than the specific threshold
The scheduling of the first signaling is not executed.The scheduling of the first signaling of execution is indicated whether using the first wireless signal.Wherein, the second time
Window is located at before first time window, and the specific threshold is predetermined either by base station configuration.
If the transmission sequence is the second sequence, the second module is also used to:
The third time window of-on first carrier detects the received signal power.If the received signal power is small
The first wireless signal is then detected in specific threshold, whether first time window is occupied with the equipment for determining the first sequential index, if really
The equipment of fixed first sequential index occupies first time window and then judges the scheduling for not executing the first signaling, if it is determined that the first sequence
The equipment of index is not take up first time window and then judges to execute the scheduling of the first signaling.If the received signal power is greater than spy
Determine threshold value and then judges the scheduling for not executing the first signaling.Wherein, third time window is located at before first time window, the certain threshold
Value is predetermined either by base station configuration.
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 except RNTI
Value, described with reference to RNTI is RNTI for dispatching downlink transfer of the UE on first carrier.
As the sub- embodiment 4 of embodiment 4, the first signaling and the second signaling belong to the same DCI.I.e. base station being capable of dynamic
The transmission sequence for configuring UE, improves configuration flexibility.
Embodiment 5
Embodiment 5 illustrates the structural block diagram of the processing unit in base station, as shown in Fig. 5.In attached drawing 5, base station processing
Device 300 is made of sending module 301, judgment module 302 and processing module 303.Wherein processing module 303 is optional module.
Receiving module 301 is for sending the first signaling, the second signaling, third signaling and the 4th signaling.First signaling scheduling
Uplink of first UE in the first time window on first carrier is sent, and the second signaling indicates the of the first UE on first carrier
Transmission sequence in one time window, uplink of the 2nd UE of third signaling scheduling in the first time window on first carrier are sent,
4th signaling indicates transmission sequence of the 2nd UE in the first time window on first carrier.Judgment module 302 is for judging the
It whether there is uplink signal in the first time window of one carrier wave.If it is determined that being that there are uplinks in the first time window of first carrier
Signal judges the transmission UE of the uplink signal.Processing module 303 is used for if it is determined that there are uplink signal and uplink letters
Number transmission UE only include 1 UE, receive uplink signal in the first time window of first carrier；If it is determined that uplink is not present
The transmission UE of signal or the uplink signal includes 2 UE, abandons receiving uplink letter in the first time window of first carrier
Number.
In embodiment 5, first carrier is deployed in unlicensed spectrum, and the first UE is the target UE of the first signaling.2nd UE is
The target UE of third signaling.The transmission sequence of first UE is first sequentially and the transmission of the 2nd UE sequence is the second sequence, or
First UE transmission sequence be second sequence and the 2nd UE transmission sequence be first sequence, the transmissions UE including the first UE,
At least one of 2nd UE }, the frequency domain resource of the frequency domain resource of third signaling scheduling and the first signaling scheduling is at least partly heavy
It is folded.
As the sub- embodiment 1 of embodiment 5, the first signaling is third signaling, and the first signaling is physical layer signaling (i.e. first
UE and the 2nd UE shares the mark RNTI of the identical DCI for uplink scheduling).
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 UE in the present invention includes but is not limited to
Mobile phone, notebook, tablet computer, the wireless telecom equipments such as card of surfing Internet, the present invention in the base station include but is not limited to eNB,
Macrocell base stations, microcell base station, Home eNodeB, the wireless telecom equipments such as relay base station.
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 (16)
1. a kind of method in UE, wherein include the following steps:
Step A. receives the first signaling and the second signaling, the first signaling scheduling are upper in the first time window on first carrier
Row is sent, and the second signaling indicates transmission sequence of the UE in the first time window on first carrier；
Step B. judges whether execution first according to the received signal power detected on first carrier and transmission sequence
The scheduling of signaling；Step C. if it is determined that execute the first signaling scheduling, send uplink in the first time window of first carrier
Signal；If it is determined that not executing the scheduling of the first signaling, zero is kept to send power in the first time window of first carrier；
Wherein, first carrier is deployed in unlicensed spectrum；There is more than one terminal in the running time-frequency resource that the UE is scheduled
It is scheduled；More than one terminal successively determines whether to occupy the running time-frequency resource according to the transmission sequence of distribution.
2. the method according to claim 1, wherein the step B further includes following steps:
Second time window of the step B1. on first carrier detects the received signal power；If the received signal power
The scheduling that the first signaling of execution is then judged less than specific threshold is sentenced if the received signal power is greater than the specific threshold
The disconnected scheduling for not executing the first signaling；
Step B2. indicates whether to execute the scheduling of the first signaling using the first wireless signal；
Wherein, the transmission sequence is the first sequence, and the second time window is located at before first time window, and the specific threshold is pre-
It is first determining or by base station configuration.
3. the method according to claim 1, wherein the step B further includes following steps:
Third time window of the step B3. on first carrier detects the received signal power；If the received signal power
The first wireless signal is then detected less than specific threshold, and whether first time window is occupied with the equipment for determining the first sequential index, if
The equipment for determining the first sequential index occupies first time window and then judges the scheduling for not executing the first signaling, if it is determined that first is suitable
The equipment of sequence index is not take up first time window and then judges to execute the scheduling of the first signaling；If the received signal power is greater than
Specific threshold then judges the scheduling for not executing the first signaling；
Wherein, the transmission sequence is the second sequence, and third time window is located at before first time window, and the specific threshold is pre-
It is first determining or by base station configuration.
4. according to the method described in claim 3, it is characterized in that, the step B further includes following steps:
Step B4. sends second wireless singal and indicates whether to execute the scheduling of the first signaling.
5. the method according to any claim in claim 2 to 4, which is characterized in that the first wireless signal includes puppet
At least one of random sequence or ZC sequences.
6. the method according to any claim in claim 2 to 4, which is characterized in that the first wireless signal is reserved
Frequency domain resource is located on authorization frequency spectrum or the reserved frequency domain resource of the first wireless signal is located at first carrier.
7. the method according to any claim in claim 2 to 4, which is characterized in that the first signaling is physical layer letter
It enables, the mark RNTI of the first signaling is with reference to the value except RNTI, and the RNTI that refers to is to carry for dispatching the UE first
The RNTI of downlink transfer on wave.
8. a kind of method in base station, wherein include the following steps:
Step A. sends the first signaling and the second signaling, first time window of the first UE of the first signaling scheduling on first carrier
In uplink send, the second signaling indicates transmission sequence of the first UE in first time window on first carrier；
Step B. judges in the first time window of first carrier with the presence or absence of uplink signal；
Wherein, first carrier is deployed in unlicensed spectrum, and the first UE is the target UE of the first signaling；It is scheduled in the first UE
Running time-frequency resource in there is more than one terminal and be scheduled；More than one terminal is successively determined according to the transmission sequence of distribution
Whether the running time-frequency resource is occupied.
9. according to the method described in claim 8, it is characterized in that, the step A further includes following steps:
Step A1. sends third signaling and the 4th signaling, first time window of the 2nd UE of third signaling scheduling on first carrier
In uplink send, the 4th signaling indicates transmission sequence of the 2nd UE in first time window on first carrier；
If it is determined that being there are uplink signal in the first time window of first carrier, the step B further includes following steps:
Step B1. judges the transmission UE of the uplink signal；
Wherein, the 2nd UE is the target UE of third signaling；The transmission sequence of first UE is first sequentially and the transmission of the 2nd UE is suitable
Sequence is second sequentially or the transmission of the first UE sequence is second sequentially and the transmission of the 2nd UE sequence is the first sequence, described
Sending UE includes at least one of { the first UE, the 2nd UE }, the frequency domain resource of third signaling scheduling and the first signaling scheduling
Frequency domain resource is least partially overlapped.
10. method according to claim 8 or claim 9, which is characterized in that further include following steps:
Step C. is if it is determined that there are the transmission UE of uplink signal and the uplink signal to only include 1 UE, in first carrier
Uplink signal is received in first time window；If it is determined that including 2 there is no the transmission UE of uplink signal or the uplink signal
A UE abandons receiving uplink signal in the first time window of first carrier.
11. according to the method described in claim 10, it is characterized in that, the base station is detected, { the first wireless signal, second is wireless
Signal } in first time window to judge first carrier with the presence or absence of uplink signal and the transmission UE of the uplink signal, such as
Base station described in fruit only detects that the first wireless signal then judges that the transmission UE is the first UE, if the base station only detects
Two wireless signals then judge that the transmission UE is the first UE, if the base station detects the first wireless signal and the second wireless communication
Number then judge that the transmission UE includes the first UE and the 2nd UE, if the first wireless signal and the second nothing is not detected in the base station
Line signal then judges that there is no uplink signals in the first time window of first carrier.
12. the method according to claim 9 or 11, which is characterized in that the first signaling and third signaling are the same physics
Layer signaling.
13. a kind of user equipment, which is characterized in that the equipment includes:
First module: for receiving the first signaling and the second signaling, first time window of first signaling scheduling on first carrier
In uplink send, the second signaling indicate the user equipment in the first time window on first carrier transmission sequence；
Second module: for judging whether to hold according to the received signal power detected on first carrier and transmission sequence
The scheduling of the first signaling of row；
Third module: for if it is determined that execute the first signaling scheduling, send uplink in the first time window of first carrier
Signal；If it is determined that not executing the scheduling of the first signaling, zero is kept to send power in the first time window of first carrier；
Wherein, first carrier is deployed in unlicensed spectrum；Exist in the running time-frequency resource that the user equipment is scheduled more than one
A terminal is scheduled；More than one terminal successively determines whether to occupy the running time-frequency resource according to the transmission sequence of distribution.
14. equipment according to claim 13, which is characterized in that the second module is also used at least one of:
Second time window of the first function on first carrier detects the received signal power；If the reception signal function
Rate is less than specific threshold and then judges to execute the scheduling of the first signaling, if the received signal power is greater than the specific threshold
Judgement does not execute the scheduling of the first signaling；The scheduling of the first signaling of execution is indicated whether using the first wireless signal；Wherein, described
Transmission sequence is the first sequence, and the second time window is located at before first time window, the specific threshold be predetermined or
It is to be configured by base station；
Third time window of the second function on first carrier detects the received signal power；If the reception signal function
Rate then detects the first wireless signal less than specific threshold and whether occupies first time window with the equipment for determining the first sequential index, such as
The equipment that fruit determines the first sequential index occupies first time window and then judges the scheduling for not executing the first signaling, if it is determined that first
The equipment of sequential index is not take up first time window and then judges to execute the scheduling of the first signaling；If the received signal power is big
The scheduling for not executing the first signaling is then judged in specific threshold；Wherein, the transmission sequence is the second sequence, third time window position
Before first time window, the specific threshold is predetermined either by base station configuration.
15. a kind of base station equipment, which is characterized in that the equipment includes:
First module: for sending the first signaling, the second signaling, third signaling and the 4th signaling；The first UE of first signaling scheduling
Uplink in first time window on first carrier is sent, and the second signaling indicates first time of the first UE on first carrier
Transmission sequence in window, uplink of the 2nd UE of third signaling scheduling in the first time window on first carrier are sent, the 4th letter
Enable transmission sequence of the 2nd UE of instruction in the first time window on first carrier；
Second module: it whether there is uplink signal in the first time window for judging first carrier；If it is determined that first carrier
First time window in be the transmission UE that the uplink signal is judged there are uplink signal；
Wherein, first carrier is deployed in unlicensed spectrum, and the first UE is the target UE of the first signaling；2nd UE is third signaling
Target UE；The transmission sequence of first UE is first sequentially and the transmission of the 2nd UE sequence is the second sequence or the hair of the first UE
It is the first sequence that send sequence, which be the transmission sequence of the second sequence and the 2nd UE, and the transmissions UE is including in { the first UE, the 2nd UE }
At least one, the frequency domain resource of the frequency domain resource of third signaling scheduling and the first signaling scheduling is least partially overlapped.
16. equipment according to claim 15, which is characterized in that the equipment further include:
Third module: if it is determined that there are the transmission UE of uplink signal and the uplink signal to only include 1 UE, in first carrier
First time window in receive uplink signal；If it is determined that the transmission UE that uplink signal or the uplink signal is not present includes
2 UE abandon receiving uplink signal in the first time window of first carrier.
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| CN201910420617.1A CN110191515B (en) | 2014-12-19 | 2014-12-19 | LAA communication method and device |
| CN201410822028.3A CN105763308B (en) | 2014-12-19 | 2014-12-19 | A kind of method and apparatus of LAA communication |
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| CN107690190B (en) * | 2016-08-06 | 2019-11-15 | 上海朗帛通信技术有限公司 | A kind of method and apparatus in wireless communication |
| US10390379B2 (en) | 2016-12-21 | 2019-08-20 | Huawei Tehcnologies Co., Ltd. | System and method for network-assisted distributed user equipment cooperation in unlicensed spectrum |
| CN110035499B (en) * | 2018-01-11 | 2023-07-25 | 上海朗帛通信技术有限公司 | Method and apparatus in a communication node for wireless communication |
| CN110113817B (en) * | 2018-02-01 | 2021-06-25 | 上海朗帛通信技术有限公司 | Method and device for wireless communication in base station and user equipment |
| CN113517968A (en) * | 2018-12-24 | 2021-10-19 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN113163487B (en) * | 2020-01-07 | 2022-12-27 | 维沃移动通信有限公司 | Resource scheduling method, communication device, network device, and storage medium |
| WO2023211015A1 (en) * | 2022-04-27 | 2023-11-02 | 엘지전자 주식회사 | Method for transmitting and receiving uplink channel and downlink channel, and device therefor |
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| CN105763308A (en) | 2016-07-13 |
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