CN106559797A - For the method and apparatus intercepted before the session in multi-carrier transmission - Google Patents
For the method and apparatus intercepted before the session in multi-carrier transmission Download PDFInfo
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- CN106559797A CN106559797A CN201510623301.4A CN201510623301A CN106559797A CN 106559797 A CN106559797 A CN 106559797A CN 201510623301 A CN201510623301 A CN 201510623301A CN 106559797 A CN106559797 A CN 106559797A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
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- Engineering & Computer Science (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Each embodiment of the disclosure is there is provided the method and apparatus for LBT is intercepted before the session in multi-carrier transmission.The method includes for multiple carrier waves being divided into the packet of at least one carrier wave.The method also include based on will be in multiple carrier waves each carrier wave on the type of service of data block transmitted, corresponding LBT priority types are determined for each the carrier wave packet in the packet of at least one carrier wave, wherein each LBT priority type corresponds to the different parameters set for being used to performing LBT.The method further includes the corresponding parameter sets of LBT priority types based on determined by, performs LBT, whether can be used for transmission data block with each carrier wave determined in multiple carrier waves on the included carrier wave of each the carrier wave packet in the packet of at least one carrier wave.
Description
Technical field
Embodiment of the disclosure relates generally to wireless communication field, and more particularly, to
For the side of (Listen-Before-Talk, LBT) is intercepted before the session in multi-carrier transmission
Method and device.
Background technology
In recent years, the portfolio on cellular communications networks constantly increases, so that more
Many frequency spectrums are to provide higher network capacity.However, due to authorize frequency spectrum be it is limited,
In order to further improve the utilization rate of frequency spectrum resource, how discussed using unauthorized now
Frequency spectrum, such as 2.4GHz and 5GHz frequency ranges etc..These unlicensed spectrums are main by all at present
The communication systems such as such as Wi-Fi, bluetooth, radar, medical treatment are used.For example, 3GPP the (the 3rd
For partner program) propose LAA-LTE (Licensed-Assistant Access using
Long Term Evolution, using LTE mandate assist access) concept, by LTE
Authorize frequency spectrum to help use unlicensed spectrum.
It is existing using the communication system for authorizing frequency spectrum, such as LTE is it has been specified that various machines
Make for ensure avoid interference, so between base station and user uplink downlink transmission without
Whether other base stations or other users are had just in transmission data around considering.If however, LTE
Also whether there is other equipment using unauthorized frequency around not considering when using unlicensed spectrum
Spectrum, this by the user that unlicensed spectrum is currently in use to such as Wi-Fi equipment etc bring compared with
It is big to disturb.Current Wi-Fi systems have the rule for avoiding interference, its ultimate principle
It is the access point or user terminal of Wi-Fi before transmitting data in unlicensed spectrum
Intercept in single carrier wave whether the carrier wave is used by other access points or other users terminal
(that is, whether intercepting the carrier wave in busy state).Before this mechanism is referred to as session
Intercept (LBT) mechanism.
In order to realize and the system for being currently in use unlicensed spectrum of Wi-Fi systems etc.
Coexist, LTE system should also be as adopting LBT when communications are carried out using unlicensed spectrum
Mechanism.For LTE system, generally data will be dispatched across multiple carrier waves, but in Wi-Fi
The LBT mechanism applied in system is confined to the detection to single carrier wave.Accordingly, it would be desirable to many
The scheme of the LBT in carrier-wave transmission.
The content of the invention
The purpose of embodiment of the disclosure is to provide to intercept before the session in multi-carrier transmission
Scheme.
According to the first aspect of the disclosure, there is provided a kind of in multi-carrier transmission
The method of LBT.The method includes for multiple carrier waves being divided into the packet of at least one carrier wave.Should
Method also include based on will be in multiple carrier waves each carrier wave on the business of data block transmitted
Type, is that each the carrier wave packet in the packet of at least one carrier wave determines that corresponding LBT is preferential
Level type, wherein each LBT priority type correspond to the different parameters for being used to performing LBT
Set.The method further includes the corresponding parameter of LBT priority types based on determined by
Set, performs on the included carrier wave of each the carrier wave packet in the packet of at least one carrier wave
Whether LBT, can be used for transmission data block with each carrier wave determined in multiple carrier waves.
According to one embodiment of the disclosure, multiple carrier waves are divided into at least one carrier wave point
Group includes for multiple carrier waves being divided into multiple carrier wave packets, and wherein each carrier wave packet is including more
A carrier wave in individual carrier wave.
According to one embodiment of the disclosure, multiple carrier waves are divided into at least one carrier wave point
Group includes at least two carrier waves adjacent on same frequency band being divided in a carrier wave packet
In.
According to one embodiment of the disclosure, multiple carrier waves include unauthorized carrier wave.
According to one embodiment of the disclosure, it is each carrier wave in the packet of at least one carrier wave
Packet determines that corresponding LBT priority types include that determination will be in the packet of at least one carrier wave
The included carrier wave of first carrier packet on the type of service of data block transmitted corresponding to many
Individual LBT priority types；And highest or minimum is selected from multiple LBT priority types
LBT priority types be used as first carrier packet LBT priority types.
According to one embodiment of the disclosure, the parameter sets of each LBT priority type are extremely
Include maximum contention window and minimum competition window less.It is every in the packet of at least one carrier wave
LBT is performed on the included carrier wave of individual carrier wave packet includes：It is determined that right with each carrier wave packet
It is excellent that the contention window size answered, wherein contention window size are grouped corresponding LBT in carrier wave
Between maximum contention window and minimum competition window in the parameter sets of first level type；It is based on
Each carrier wave is grouped corresponding contention window size, it is determined that corresponding with carrier wave packet move back at random
Count window size is kept away, the random back count window size is indicated it is determined that carrier wave can be used for
Accumulative clear channel assessment (CCA) time slot of the carrier wave in idle condition before transmission data block；With
And corresponding random back count window size is grouped based on each carrier wave, institute is grouped in carrier wave
Including carrier wave on perform LBT.
According to one embodiment of the disclosure, the parameter sets of each LBT priority type are extremely
Include the time delay for LBT less, indicate time delay to comment detecting idle channel
Estimate after busy state to the minimum proceeded before clear channel assessment (CCA) next time etc.
Treat the time.LBT is performed on the included carrier wave of carrier wave packet to further include based on each
The time delay of carrier wave packet correspondence LBT priority types, in the included load of carrier wave packet
LBT is performed on ripple.
According to one embodiment of the disclosure, the method further includes many in response to detecting
At least one of individual carrier wave carrier wave can be used for transmission data block, upload at least one carrier wave
Defeated corresponding data block.
According to one embodiment of the disclosure, the parameter sets of each LBT priority type are extremely
Include maximum transmitted holding time less, and wherein at least two carrier wave is detected as can be used for
Transmission data block, and at least two carrier waves are included in different carrier waves packets.The party
Method further comprises determining that the carrier wave including at least two carrier waves is grouped corresponding LBT priority
The minimum time value in maximum transmitted holding time in the parameter sets of type.At least one
Corresponding data block is transmitted on individual carrier wave to be included using minimum time value at least two carrier waves
Corresponding data block is transmitted simultaneously.
According to one embodiment of the disclosure, the method further includes number corresponding in transmission
After according to block, the carrier wave packet correspondence including at least one carrier wave is adjusted based on predetermined criterion
Contention window size or adjustment at least one carrier wave packet in each carrier wave packet correspondence
Contention window size.According to one embodiment of the disclosure, adjusted competition window is big
It is little to perform once LBT for being grouped on included carrier wave in corresponding carriers.
According to one embodiment of the disclosure, predetermined criterion based on the following at least one
The feedback of the data transfer on the item carrier wave included to each carrier wave packet；And at each
The result of the LBT performed on the included carrier wave of carrier wave packet.
According to one embodiment of the disclosure, the method further includes number corresponding in transmission
After according to block, update each carrier wave and be grouped corresponding random back count window size.According to
One embodiment of the disclosure, adjusted random back count window size is for corresponding
LBT next time is performed on the included carrier wave of carrier wave packet.
According to the second aspect of the disclosure, there is provided a kind of in multi-carrier transmission
The device of LBT.The device includes carrier wave division unit, is configured to divide multiple carrier waves
It is grouped at least one carrier wave.The device also includes priority determining unit, is configured to base
In will be in multiple carrier waves each carrier wave on the type of service of data transmitted, be at least one
Each carrier wave packet in individual carrier wave packet determines corresponding LBT priority types, each
LBT priority types are corresponding to the different parameters set for LBT.The device is further wrapped
Include and intercept performance element, be configured to the corresponding ginseng of LBT priority types based on determined by
Manifold is closed, and is held on the included carrier wave of each the carrier wave packet in the packet of at least one carrier wave
Whether row LBT, can be used for transmission data block with each carrier wave determined in multiple carrier waves.
Will be understood that by being described below, according to the example embodiment of the disclosure, in multicarrier
In communication, based on will be in multiple carrier waves each carrier wave on the business of data block transmitted
Type, is that the carrier wave packet for including one or more carrier waves determines corresponding LBT priority class
Type.Each LBT priority type corresponds to the different parameter sets for LBT.According to
The difference of data block to be transmitted, can be that different carrier wave packets determines that different LBT are excellent
First level type, such that it is able to perform LBT based on different parameter sets on this carrier wave.
Other benefits that the example embodiment of the disclosure is brought will be clear by being described below.
Description of the drawings
Detailed description below is read by reference to accompanying drawing, the embodiment of the present disclosure above-mentioned and
Other purposes, feature and advantage will become prone to understand.In the accompanying drawings, with exemplary rather than
Restricted mode shows some embodiments of the disclosure, wherein：
Fig. 1 is the example ring that system described herein and/or method can be carried out wherein
The figure in border；
Fig. 2 is the figure of the exemplary components of one or more equipment of Fig. 1；
Fig. 3 show the one embodiment according to the disclosure for multicarrier pass transmission in
Session before the flow chart of process intercepted；
Fig. 4 shows that the example LBT priority type of the one embodiment according to the disclosure is reflected
The schematic diagram of firing table；
Before Fig. 5 shows the session over a number of carriers of the one embodiment according to the disclosure
Intercept the schematic diagram of process；And
Fig. 6 show the one embodiment according to the disclosure for multicarrier pass transmission in
Session before the block diagram of device intercepted.
Specific embodiment
The some exemplary embodiments illustrated in below with reference to the accompanying drawings are describing the original of the disclosure
Reason and spirit.It should be appreciated that describing these embodiments just for the sake of making people in the art
Member better understood when further to realize the disclosure, and not limit the disclosure by any way
Scope.
In the description of embodiment of this disclosure, term " including " and its similar term should
Include when opening is interpreted as, i.e. " including but not limited to ".Term "based" should be understood
For " being based at least partially on ".Term " one embodiment " or " embodiment " should be managed
Solve as " at least one embodiment ".
In the description of embodiment of this disclosure, user equipment (UE) may refer to terminal,
Mobile terminal (MT), subscriber station (SS), portable subscriber station (PSS), movement station
(MS), or access terminal (AT), and UE, terminal, MT, SS, PSS,
Some or all functions of MS or AT can be included.UE can be any type
Mobile terminal, fixed terminal or portable terminal, including cell phone, website, unit,
Equipment, multimedia computer, multimedia flat board, internet node, communicator, desk-top meter
Calculation machine, laptop computer, notebook, netbook computer, tablet PC,
PCS Personal Communications System (PCS) equipment, personal navigation equipment, personal digital assistant (PDA),
It is audio/video player, digital camera/video camera, location equipment, television receiver, wireless
Electric radio receiver, electronic book equipment, game station or its combination in any, including these
The accessory and peripheral hardware or its combination in any of equipment.It is also contemplated that be, it would be preferable to support arbitrarily
The interface (" wearable " circuit etc.) for user of type.
In the description of embodiment of this disclosure, term " base station (BS) " is sometimes referred to
For " BS/ points " or " point ", with consistent with 3GPP terms.It should be noted that term " BS/
Point ", " point " and " BS " have same implication, and they in this disclosure
In each can represent, such as node B (NodeB or NB), evolved NodeB
(eNodeB or eNB), Radio heads (RH), Remote Radio head end (RRH),
Relaying, femto base station, low power nodes of femto base station etc..
Fig. 1 is the example context that method described herein and/device can be carried out wherein
100 figure.As shown in figure 1, base station (BS) 110 can be set to user via link 132
Standby (UE) 122 transmission data, and can be via link 136 to 124 transmission datas of UE.
Link 132 and 136 can be referred to as downlink (DL).BS 110 can be carried wherein
Geographic area for servicing can be referred to as cell, and UE 122 and 124 is in the cell range
It is interior.As is further illustrated in figure 1, UE 122 can transmit number to BS 110 via link 134
According to, and UE 124 can be via link 138 to 110 transmission datas of BS.Link 134
Up-link (UL) can be referred to as with 138.
BS 110 can be dispatched on multiple carrier waves, such as carrier wave 1 to 5 and be gone to 122 and of UE
124 data, and UE 122 or 124 can also dispatch on carrier wave 1 to 5 and go to BS
110 data.The frequency range of each the carrier occupancy certain length in carrier wave 1 to 5.For example,
Each carrier wave can have the length of 20MHz.Alternatively or additionally, carrier wave 1 to 5
In some or all of carrier waves can be adjacent to each other.In other examples, carrier wave 1 to 5 can
With not adjacent to each other.(for example, BS 110, UE 122 or UE be 124) for sending ending equipment
Each carrier wave that can independently in scheduling carrier wave 1 to 5 is used to carry data.Pass from data
From the perspective of defeated, each carrier wave is also independent from other carrier waves and is operated.
One or more carrier waves in carrier wave 1 to 5 are probably unauthorized carrier wave.These are non-to award
The system call that power carrier wave is also possible to be operated in unauthorized frequency range by Wi-Fi systems etc. is used to count
According to transmission.In embodiment of the disclosure, sending ending equipment (for example, BS 110, UE 122
Or before any carrier waves of the UE 124) in using carrier wave 1 to 5 carries out data transmission,
In order to avoid with just may be conflicted using the data transfer of the carrier wave, can first in the carrier wave
Intercept before upper execution session.If detecting the carrier wave is the free time and can be used for transmission data,
Then carry out transmission data using the carrier wave.If detecting the carrier wave is not useable for transmission data,
Then continue to intercept the carrier wave.
As previously mentioned, carrier wave 1 to 5 is independent of one another from for the angle of data transfer
's.Therefore, the type of service of the data block transmitted on different carrier waves can be with difference.It is different
The data of type generally have different quality of service requirements.For example, for requirement of real-time
High business, such as speech data or video data, it is desired to be able to rapidly obtain to letter
The access in road (that is, carrier wave).However, for some the best services or backstage industry
Business, the requirement to the access of channel may not be so strict.In the logical of such as LTE etc
In letter system, sending ending equipment can be across the different types of data of multiple carrier-wave transmissions.For example,
BS 110 can transmit voice and video to UE 122 and 124 on carrier wave 1 to 5 respectively.
Again for example, UE 122 may need to send voice and video to BS 110 simultaneously.In this feelings
Under condition, the data for being desired based on transmitting on each carrier carry out the meeting of execution in corresponding carriers
Intercept before words, to meet the quality of service requirement of different pieces of information.Due to intercepting before session
During the LBT parameters that use for result (for example, the number waiting for transmission intercepted before session
According to channel access chance, Channel holding time etc.) with impact, when over a number of carriers
When intercepting before performing session, for intercepting the LBT used by process before the session of each carrier wave
Parameter needs configuration.This will be described in detail below.
The number and arrangement of the equipment that figure 1 illustrates is provided as an example.
In practice, there may be other equipment, less equipment, different equipment, or with
The equipment being differently arranged with these equipment illustrated in Fig. 1.Additionally, environment 100
Cluster tool (for example, one or more equipment) can perform and be described as by environment 100
Another cluster tool performed by one or more functions.
Fig. 2 is the figure of the exemplary components of equipment 200.Equipment 200 can correspond to BS 110,
UE 122 or UE 124.In certain embodiments, objective BS 110, UE 122 or UE
124 one or more assemblies that can include one or more equipment 200, and/or equipment 200.
As shown in Fig. 2 equipment 200 can include bus 210, processor 220, memorizer 230,
Storage assembly 240, input module 250, output precision 260 and communication component 270.
Bus 210 can include the component for allowing the communication among the component of equipment 200.
Processor 220 is realized with the combination of hardware, firmware or hardware and software.Processor 220
Can include processor (for example, CPU (CPU), Graphics Processing Unit (GPU),
Accelerate processing unit (APU) etc.), microprocessor, and/or interpretation and/or execute instruction
Any process assembly (for example, field programmable gate array (FPGA), special IC
(ASIC) etc.).Memorizer 230 can include random access storage device (RAM), only
Read memorizer (ROM), and/or the information that used by processor 220 of storage and/or instruction
Another type of dynamic or static storage device (for example, flash memory, magnetic memory, optical storage
Device etc.).
Storage assembly 240 can store the operation with equipment 200 and using relevant information and/
Or software.For example, storage assembly 240 can include the hard disk together with corresponding driver
(for example, disk, CD, magneto-optic disk, solid-state disk etc.), compact disk (CD), numeral
Change generic diskette (DVD), floppy disk, disk (cartridge), tape, and/or another
The computer-readable medium of type.
Input module 250 such as can be received via user input including permission equipment 200
Component (for example, touch-screen display, keyboard, keypad (keypad), the Mus of information
Mark, button, switch, mike etc.).Additionally or alternatively, input module 250 can
With include for induction information induction apparatuss (for example, global positioning system (GPS) component,
Accelerator, gyroscope, actuator etc.).Output precision 260 can be included from equipment 200
There is provided output information component (for example, display, speaker, one or more luminous two
Pole pipe (LED) etc.).
Communication interface 270 can include enable equipment 200 via such as wired connection,
Wireless connection or the class for combining to be communicated with other equipment of wired and wireless connection
The component (for example, transceiver, single receptor and emitter etc.) of transceiver.Communication
Interface 270 can allow equipment 200 to carry from another equipment receiving information and/or to another equipment
For information.For example, communication interface 270 can include Ethernet interface, optical interface, coaxial
Interface, infrared interface, radio frequency (RF) interface, USB (universal serial bus) (USB) interface,
Wi-Fi interface, cellular network interface etc..
Equipment 200 can perform one or more processes described herein and/or method.If
Standby 200 can perform by computer-readable medium (such as memorizer in response to processor 200
230 and/or the software instruction that 240) stored of storage assembly performing these processes.Computer
Computer-readable recording medium is defined herein as non-transient storage device.Storage device includes single thing
Memory space or empty across the storage of multiple physical storage devices extension in reason storage device
Between.
Software instruction can be from another computer-readable medium or via communication interface 270
And in being read into memorizer 230 and/or storage assembly 240 from another equipment.Held
During row, the software instruction in being stored in memorizer 230 and/or storage assembly 240 can promote
Computer 220 performs one or more processes described herein.Additionally or alternatively,
Hard-wired circuitry can replace software instruction or be combined together to perform with software instruction
One or more processes described herein.Therefore, embodiment described herein is not limited to
Any particular combination of hardware circuit and software.
The number and arrangement of component shown in figure 2 is provided as an example.
In practice, equipment 200 can include other component, less component, different components,
Or the component to be differently arranged with these components for illustrating in Fig. 2.Additionally or
Alternatively, the assembly set (for example, one or more assemblies) of equipment 200 can be performed
The one or more functions being described as by performed by another assembly set of equipment 200.
Fig. 3 show the one embodiment according to the disclosure in multi-carrier transmission
The flow chart of the process 300 intercepted before session.In certain embodiments, process 300 can be with
Performed by the sending ending equipment of multi-carrier transmission.For example, process 300 can be from will be to UE
The BS 110 of 122 and/or 124 transmission data is performing.Again for example, process 300 can be by
To perform to the UE 122 or 124 of the transmission data of BS 110.Additionally or alternatively,
Process 300 can be being performed by equipment detached with sending ending equipment or cluster tool.To the greatest extent
Pipe Fig. 3 shows the example frame of process 300, and in certain embodiments, process 300 can be with
Including other frame, less frame, different frames or with these frames for describing in Fig. 3
The frame being differently arranged.Additionally or alternatively, two or more frames of process 300 can
To be concurrently performed.
As shown in figure 3, process 300 can include for multiple carrier waves being divided at least one load
Wavelength-division group, each carrier wave packet include at least one of the plurality of carrier wave carrier wave (frame
310).In certain embodiments, by sending ending equipment (for example, BS 110, UE 122 or
124) person UE performs the division of carrier wave.In certain embodiments, sending ending equipment is detected
There are multiple data flows transmit respectively over a number of carriers, so that holding to multiple carrier waves
Intercept before the session of row process 300, to determine whether to transmit on these carrier waves accordingly
Data block.In certain embodiments, multiple carrier waves can include taking unlicensed spectrum
Unauthorized carrier wave, authorizes carrier wave, or unauthorized carrier wave and the combination for authorizing carrier wave.This public affairs
The scope of the embodiment opened is not limited in this respect.
In embodiment of the disclosure, according to the corresponding clothes of type of service of different data blocks
Business prescription is come to intercepting before the execution session of multiple carrier waves.The Service Quality of different data blocks
The different parameters that amount is used during requiring to can correspond to intercept before session.In some realities
Apply in example, each carrier wave being desired in multiple carrier waves determines independent parameter for before session
Intercept.In other embodiment, some or all carrier waves being desired in multiple carrier waves
Public parameter is determined for intercepting before session.Thus, sending ending equipment can first will be more
Individual carrier wave is divided into one or more carrier waves and is grouped, and then determines phase in units of carrier wave packet
Answer for the parameter intercepted before session.
In certain embodiments, each the carrier wave packet for being divided can include only one carrier wave.
And say, independent parameter can be determined for intercepting before session for each carrier wave.At some
In embodiment, a carrier wave packet can include two or more carrier waves.For same load
Multiple carrier waves in wavelength-division group, can have public parameter to intercept before being used for session.One
In the case of a little, at least two adjacent on the same frequency band carrier waves can be divided into one
In carrier wave packet.For example, if each carrier wave has 20MHz bandwidth, for 100MHz
Frequency band, five carrier waves in the frequency band can be divided into a carrier wave packet, from
And this five carrier wave packets can be intercepted before being conversated using identical parameter.
As further shown in figure 3, process 300 is also included based on every in multiple carrier waves
The type of service of the data block transmitted on individual carrier wave, is each during at least one carrier wave is grouped
Carrier wave packet determines corresponding LBT priority types, and each LBT priority type is corresponded to
For performing the different parameters set (frame 320) of LBT.In certain embodiments, by sending
(for example, 124) BS 110, UE 122 or UE perform the LBT of carrier wave packet to end equipment
Priority type determines.
As it was previously stated, in embodiment of the disclosure, can be determined in units of carrier wave packet
The corresponding parameter for being used for LBT.No matter a carrier wave packet includes only one carrier wave or bag
Multiple carrier waves are included, the carrier wave packet can have oneself independent parameter to be used for LBT.
In embodiment of the disclosure, multiple LBT priority types can be pre-defined, often
Individual LBT priority types can have the corresponding different parameters set for LBT (under
Wen Zhong, is also referred to as " LBT parameters " or " LBT parameter sets " sometimes).One
In a little embodiments, LBT parameter sets can at least include that maximum contention window (can be by table
It is shown as " CWmax"), minimum competition window (" CW can be represented asmin") and postpone when
Between (Defer Time).Additionally or alternatively, LBT parameter sets can be with maximum transmitted
Holding time (transmission opportunity " Transmission Opportunity " can also be referred to as,
TXOP), after each determination carrier wave of instruction can be used for transmission data block, the carrier wave can be occupied
Maximum time.These parameters in LBT parameter sets can be pre-configured with.For
Different LBT priority types, in these parameters, some or all parameters can
With difference.In one example, LBT priority is higher, corresponding CWmax、CWmin、
Time delay and/or TXOP can be less.In other examples, LBT priority and parameter
Size can have other corresponding relations.Will be with regard to use of these parameters during LBT
It is described in detail below.
In embodiment of the disclosure, to transmit on each carrier depending on sending ending equipment
Data block type of service, it may be determined that each carrier wave is grouped corresponding LBT priority class
Type.For example, there may be the type of service (or quality of service requirement) and LBT of data block
Mapping relations between priority type.According to this mapping relations, it may be determined that at each
The corresponding LBT priority types of data block transmitted on carrier wave, and then determination includes the carrier wave
Carrier wave be grouped corresponding LBT priority types.
Fig. 4 shows the corresponding LBT parameter sets of multiple LBT priority types.Will
It is noted that these parameters in LBT parameter sets are configurable.Lead in different
LBT priority types and LBT can be configured in letter system or in different cells
Different mappings between parameter sets.
In the example of fig. 4, maximum contention window and minimum competition window are integers, its list
Position can be carried out session before intercept a time slot, such as clear channel assessment (CCA) (Clearance
Channel Assessment, CCA) time slot.CCA time slots can be such as 9 μ s.In figure
In 4 example, as LBT priority types are lower, maximum transmitted holding time is (i.e.
TXOP it is) bigger.In the LBT parameters shown in Fig. 4, parameter n is determined for prolonging
The slow time.For example, can be calculated based on equation below time delay：
Tdefer=(16+n × tslot)μs (1)
Wherein TdeferRepresent time delay；And tslotRepresent and perform a CCA time slot.At one
In example, tslotCan be 9 μ s.From formula (1), when different LBT priority class
The corresponding n of type it is different when, corresponding time delay is also different.It should be noted that may be used also
With otherwise based on parameter n determining T time delaydefer。
Fig. 4 also show the mapping relations between LBT priority types and different service types.
In the example of fig. 4, the higher data block of quality of service requirement (for example, voice, video
Deng) corresponding to higher LBT priority types.It will be appreciated that in other embodiments,
Can also be entered come the data by LBT priority types with different service types according to other criterions
Row mapping.
Based on the mapping relations between LBT priority types and type of service, for each load
The difference of the type of service of data block to be transmitted on carrier wave included by wavelength-division group, can be true
The fixed carrier wave is grouped corresponding LBT grades.In certain embodiments, if a carrier wave point
Group includes the data block that single type is transmitted in only single carrier wave, and the carrier wave, then according to
Mapping relations can determine corresponding LBT grades for the carrier wave packet.In certain embodiments,
If a carrier wave packet includes multiple carrier waves and will transmit different business on each carrier
The data block of type, or the packet of carrier wave includes single carrier wave and will pass on the carrier wave
The data block (i.e. including the data block of different service types) of defeated mixing, then closed according to mapping
System can determine multiple LBT priority types corresponding with these types of service.In this feelings
Under condition, from multiple LBT priority types, highest LBT priority type can be selected to use
Make the LBT priority types of the carrier wave packet.In another embodiment, if LBT ginsengs
Manifold defines maximum transmitted holding time (that is, TXOP), and LBT priority in closing
Type is lower, and TXOP is bigger, then can select most from multiple LBT priority types
LBT priority type of the low LBT priority types as the carrier wave packet, to support most
The quality of service requirement of the business of high priority.In other embodiments, can be from multiple LBT
A LBT priority type is randomly choosed in priority type corresponding as the carrier wave packet
LBT priority types.The scope of embodiment of the disclosure is not limited in this respect.
Although some LBT priority types, corresponding LBT parameter sets are shown in Fig. 4
And the type of service for being mapped it should be appreciated that can also configure more or more
Few LBT priority types, more or less of type of service, and can configure and institute
The different LBT parameters for illustrating.Additionally or alternatively, LBT priority class can be configured
The different mappings of type and type of service.For example, can be with two or more different business
Type corresponds to a LBT priority type.
As further shown in figure 3, process 300 also includes the LBT priority based on determined by
The corresponding parameter sets of type, each the carrier wave packet in the packet of at least one carrier wave are wrapped
LBT is performed on the carrier wave for including, whether can be used for passing with each carrier wave determined in multiple carrier waves
Transmission of data block (frame 330).In certain embodiments, by sending ending equipment (for example, BS 110,
124) UE 122 or UE perform LBT.
In embodiment of the disclosure, for the included carrier wave of each carrier wave packet, can be with
Using the corresponding parameter sets of LBT priority types of the carrier wave packet come to included load
Ripple performs LBT.If a carrier wave packet includes multiple carrier waves, multiple carrier waves shared
Individual public LBT parameter sets.Depending on number to be transmitted on the carrier wave in being grouped in carrier wave
According to the LBT parameter sets of some carrier wave packets may be identical, it is also possible to differs.
In embodiment of the disclosure, although multiple carrier waves be divided into carrier wave packet in with
In it is determined that corresponding LBT parameters, but determine the corresponding LBT parameters of each carrier wave it
Afterwards, LBT can be executed separately for each carrier wave.It is used for performing LBT based on determined by
Parameter, intercept before session being performed using intercept technology before polytype session.
Hereinafter process is intercepted before describing an example session in one embodiment.
In certain embodiments, during intercepting before the session of each carrier wave, can be many
Clear channel assessment (CCA) is performed in individual CCA time slots whether idle to assess the carrier wave.Specifically,
Competition window can be determined between the maximum contention window of LBT parameters and minimum competition window
Size (can be represented as " CWS ").In one example, CWS can be by initially
It is set to minimum competition window CWmin, afterwards CWS further can adjust.Competition window
The adjustment of size CWS is discussed further below.In certain embodiments, can be according to competing
Strive window size determine that random back counts (Backoff Counter) window size (can be by
It is expressed as " N ").Random back count window size N can be indicated it is determined that carrier wave is available
Before transmission data block during clear channel assessment (CCA) of accumulative of the carrier wave in idle condition
Gap.Generally, not made if the determination carrier wave in certain CCA time slot is in the free time immediately
The carrier wave is used, and is the need to ensure that the carrier wave is in the free time within a certain period of time, to avoid
With the transmission collision of other equipment.
In certain embodiments, can be from 0 to uniform point contention window size CWS
A pseudo random number is chosen in cloth as random back count window size N.N is usually whole
Number.During intercepting before the session to each carrier wave, every time (for example, in a CCA
In time slot) detect carrier wave in idle condition, then by random back count window size N
Subtract 1.If the carrier wave is detected in busy state, keep random back count window chi
Very little N is constant.If N is reduced to 0, can determine that the carrier wave can be used for transmission data block.
In certain embodiments, LBT parameter sets can include T time delaydefer, indicate
In clear channel assessment (CCA) to carrier wave, after busy state, on proceeding, once the free time believes
Minimum latency before road assessment.In this case it is also possible to be based on time delay
TdeferTo intercept before performing the session to carrier wave.In one example, the load is detected every time
When ripple is in busy state, T is waited at least for firstdeferTime, it is random within the time period
Keep out of the way count window size N and keep constant.Waiting TdeferTime after continue detection should
The state (idle or busy) of carrier wave.
Determined by above-mentioned basis, random back count window size N (goes back root in one example
According to T time delaydefer) can be referred to as extension idle for the process of clear channel assessment (CCA) that performs
Channel estimating (eCCA) process.In certain embodiments, carry if eCCA processes determine
Ripple can be used to transmit, then corresponding data block is transmitted on the carrier wave.In other embodiments,
The short period can be waited again, determine that carrier wave is still constantly in idle shape within the time period
State.This process can be referred to as initial idle channel estimating (ICCA).In one example,
During ICCA, such as 25 μ s can be waited.If during ICCA, carrier wave
Idle condition is still within, is then intercepted before can determine the session to the carrier wave successfully and can
To start in the carrier wave transmitting data block.If the carrier wave quilt is detected during ICCA
Take, it is determined that to intercepting failure before the session of the carrier wave.
Revealed as radio frequency (RF) may occur between adjacent carrier, if adjacent carrier
In a carrier wave on transmit, then intercept before performing session on other idle carrier waves
Successfully probability will very little.Therefore, in certain embodiments, can synchronous multiple carrier waves
Session before intercept process and/or subsequent data transmission procedure.In one embodiment, may be used
To intercept before performing session to multiple carrier waves simultaneously.Additionally or alternatively, one can be arranged
Individual LBT synchronous boundaries, the carrier wave intercepted before having completed session before LBT synchronous boundaries
To continue waiting for until reaching the LBT synchronous boundaries.If after LBT synchronous boundaries are reached
Intercept before remaining unfulfilled the session to carrier wave, it is determined that LBT synchronous detecting fails.Additionally
Or alternatively, synchronous transfer border can also be set, it is determined after intercepting before session
Data biography is started simultaneously in the synchronous transfer boundary to can be used for the carrier wave of transmission data block
It is defeated.
Fig. 5 shows a specific example for performing LBT processes over a number of carriers.As schemed
Shown in 5, the sending ending equipment in LTE system is expected corresponding number is sent on carrier wave 1 to 5
According to.In the example of hgure 5, carrier wave 1 to 5 can include unauthorized carrier wave, thus other
System, such as Wi-Fi systems may dispatch these carrier waves for transmission data block.LTE
Sending ending equipment in system can perform session to these carrier waves before transmission data block
Before intercept.In the example of fig. 5, it is assumed that individually determining corresponding LBT for each carrier wave
Priority type (corresponding LBT parameters) is for detecting.That is, each carrier wave point
Group includes a carrier wave.For the impact for preventing RF from revealing, sending ending equipment can be opened simultaneously
Intercept before beginning session, and LBT synchronous boundaries are set process is intercepted before simultaneous session
Terminate and arrange synchronous transfer border to synchronous data transmission.Intercept before session and can wrap
Include eCCA processes and ICCA processes.
For carrier wave 1, the LBT parameter determinations random back count window chi according to determined by
Very little (that is, keeping out of the way counting) N1It is 4.Examine in the 1st time slot intercepted before session is started
Carrier wave 1 is measured in idle condition, thus by N1Subtract 1.Detect in front 4 time slots
Idle condition, N are in carrier wave 11It is reduced to 0.At this point it is possible to determine the eCCA of carrier wave 1
The testing result of process is successful, and does not continue to perform detection, and is to wait for LBT
Synchronous boundaries.
For carrier wave 2, the data that transmitted on carrier 2 are different from carrier wave 1, thus to carry
Random back count window size N that ripple 2 determines2With N1Differ, N2Equal to 6.Opening
After 6 time slots intercepted before beginning session, it may be determined that carrier wave 2 is constantly in idle condition,
Thus N2The testing result for being reduced to 0 and eCCA process is successful.Now may not be used
Perform detection is further continued for, and is to wait for LBT synchronous boundaries.
For carrier wave 3, the LBT parameter determinations random back count window chi according to determined by
Very little N3It is 5.In front 2 time slots, carrier wave 3 is determined in idle condition, and at random
Keep out of the way count window size N3It is reduced to 3.In the 3-5 time slot, carrier wave 3 is by Wi-Fi
System takes, thus the sending ending equipment in LTE system detects carrier wave 3 in busy shape
State and keep N3It is constant.From the 6th time slot, continue to detect carrier wave 3 in the free time
State, thus to N3Execution is successively decreased and (is assumed not using T time delaydefer).At 8
After time slot, it may be determined that the testing result of the eCCA processes of carrier wave 3 is successful.This
When can not continue to perform detection, and be to wait for LBT synchronous boundaries.
For carrier wave 4, the LBT parameter determinations random back count window chi according to determined by
Very little N4It is 6.During eCCA, N40 is reduced to, thus determines the eCCA of carrier wave 4
The testing result of process is successful.
For carrier wave 5, the LBT parameter determinations random back count window chi according to determined by
Very little N5It is 6.During the eCCA intercepted before session, carrier wave 4 is risen in the 2nd time slot
Taken by Wi-Fi systems always.When LBT synchronous boundaries are reached, carrier wave 5 is moved back at random
Keep away count window size N5Equal to 1,0 is not also reduced to.Hence, it can be determined that carrier wave 5
The testing result of eCCA processes be failure.
When LBT synchronous boundaries are reached, it may be determined that the eCCA processes of carrier wave 1 to 4
As a result it is successful, and the eCCA processes of carrier wave 5 are failures.Therefore, carrier wave 5 exists
It is confirmed as being not useable for transmission data block during intercepting before this session.Afterwards, continue
ICCA processes are performed, whether assessment carrier wave 1 to 4 is still within the free time during ICCA
State.As carrier wave 4 is still taken (that is, carrier wave by Wi-Fi systems during ICCA
4 ICCA processes are blocked), therefore, carrier wave 4 intercept before this session during quilt
It is defined as being not useable for transmission data block, and carrier wave 1 to 3 is confirmed to be and can be used to transmit number
According to block.Sending ending equipment is corresponding using 1 to 3 simultaneous transmission of carrier wave in synchronous transfer boundary
Data block.
In certain embodiments, the corresponding LBT parameters of LBT priority types can also be specified
Corresponding maximum transmitted holding time TXOP.If intercepting before session that process determines can be with
In at least one of multiple carrier waves carrier wave transmitting data block, then the carrier wave institute can be based on
Carrier wave be grouped the maximum transmitted holding time of corresponding LBT priority types to transmit phase
The data block answered.As previously mentioned, in order to avoid the RF between adjacent carrier is revealed, such as
At least two carrier waves in really multiple carrier waves can be used for transmission data block, expect while at these
Carry out data transmission on carrier wave (for example, start simultaneously at transmission, and while terminate transmission).
In certain embodiments, if at least two carrier waves that can be used for transmission data block are included in
In different carrier wave packets, it means that different carrier waves are grouped corresponding LBT priority types
Different TXOP may be defined.In order to realize synchronous data transmission, can be determined by
Minimum time value is selected to be used for simultaneously in these carrier wave transmitting datas in different TXOP
Block.In other embodiments, can randomly choose from different maximum transmitted holding times
One time value is to synchronous data transmission.
In certain embodiments, after performing data transfer on the corresponding carrier wave, can be with
Intercept what process was used before adjusting the session performed on the carrier wave in different carrier wave packets
Parameter.Due to maximum contention window CWmax, minimum competition window CWmin, time delay
Tdefer, the parameter such as maximum transmitted holding time TXOP be pre-configured with, generally will not be
Change after intercepting before performing session every time.In certain embodiments, detect before session is performed
After listening, and in data transfer (if at least one carrier wave is confirmed as can be used to pass
Transmission of data block) after, each carrier wave can be adjusted and be grouped corresponding contention window size CWS
With random back count window size N.
In one embodiment, transmission data can be had been used for adjusting based on predetermined criterion
The carrier wave that the carrier wave of block is located is grouped corresponding contention window size CWS.And say, it is based on
The result intercepted before previous session, is used to the corresponding parameter of carrier wave of transmission data block
It is adjusted.For example, in the example of hgure 5, carrier wave 1 to 3 is confirmed as transmitting number
According to block.After these carrier waves complete data transfer, the load that these carrier waves are located can be adjusted
Corresponding contention window size CWS of wavelength-division group.
In certain embodiments, can based on the feedback of the data transfer on carrier wave, for example
HARQ (mixed automatic retransfer) feedbacks carry out Competition adjustment window size CWS.Due to HARQ
Feedback generally has delay, and the HARQ being obtained in that when adjustment is performed is for
The feedback of data transfer rather than this data transfer.Whether any data transfer be directed to
Feedback, can reflect some channel conditions of the carrier wave.In one example, such as
Fruit HARQ feedback is ACK (confirmation) feedbacks, indicates the data transfer quilt on the carrier wave
It is properly received, then the size of competition window can be reduced.If HARQ feedback is NACK
(Negative Acknowledgement) is fed back, and indicates that the data transfer on the carrier wave is not successfully received, that
The size of competition window can be increased.Either contention window size is increased or decreased,
Which is always at corresponding maximum contention window CWmaxWith minimum competition window CWminBetween.
If specific carriers packet only includes a carrier wave, the carrier wave is grouped corresponding competition window
Size can be adjusted according to the HARQ feedback on the carrier wave.If specific carriers are grouped
Including multiple carrier waves, then the carrier wave is grouped corresponding contention window size and can consider many simultaneously
HARQ feedback on individual carrier wave is being adjusted.
Additionally or alternatively, can be adjusted based on the result intercepted before the session on carrier wave
Whole contention window size CWS.What the result intercepted before the session of institute's foundation can be performed with this
The result intercepted before session, or the result intercepted before the session for previously having performed.One
Individual example, if intercepted before session in process (including eCCA processes and ICCA processes),
Detect the carrier wave busy state is in (for example, continuously on multiple continuous CCA time slots
Busy time slot is more than a threshold value), then can increase the size of competition window.Alternatively or
Additionally, whether one can be more than based on the sum of the time slot in busy state for detecting
Individual threshold value come determine whether increase competition window size.Similarly, if specific carriers point
Group only includes a carrier wave, then the corresponding contention window size of carrier wave packet can foundation
The result intercepted before the session on the carrier wave is adjusted.If specific carriers packet includes
Multiple carrier waves, then the carrier wave be grouped corresponding contention window size and can be considered multiple simultaneously
Intercept to be adjusted before session on each carrier wave of carrier wave.
In certain embodiments, can adjusted based on predetermined criterion all multiple carrier waves (
That is, all carrier wave packets) corresponding contention window size.For example, in the example of hgure 5,
The contention window size of carrier wave 1 to 3 is not only adjusted, this is also adjusted and is not used for transmitting number
According to the contention window size of the carrier wave 4 to 5 of block.With the contention window of the carrier wave only to being used
The adjustment of mouth size is similar to, and the predetermined criterion for being used can be included in the data on carrier wave and pass
Defeated feedback (for example, HARQ feedback), and/or the result intercepted before the session on carrier wave.
In certain embodiments, for the carrier wave for being confirmed as being not used by intercepting before previous session,
Can be set to the condition of Competition adjustment window size CWS more strict.For example,
For the given carrier wave being not used by, can only in the HARQ feedback of many data transfers
When being that ACK feeds back, just reduce corresponding contention window size.
In certain embodiments, after the transmission of the data, each carrier wave can also be adjusted to be grouped
Corresponding random back count window size N.In one embodiment, in previous meeting
The value of random back count window size N being decremented by intercepting before words can keep.For example,
In the example of hgure 5, at LBT synchronous boundaries, the random back count window of carrier wave 5
Size N5It is reduced to 1.Now, keep N5Random back count window size constancy it is (false
If carrier wave 5 is separately included in a carrier wave packet), for next time for carrier wave 5
Intercept before session.In this way, the carrier wave being not used by can be increased once upper
It is confirmed as can be used for the probability of data transfer when intercepting before words.
In one embodiment, each carrier wave can be reset and is grouped corresponding random back
Count window size N.For example, corresponding contention window size can be grouped in each carrier wave
CWS is uniformly distributed and middle determines that pseudo random number is used as moving back at random for carrier wave packet with 0
Keep away count window size N.
Updated contention window size CWS and random back count window size can be directed to
Corresponding carrier wave is stored.If the type of service of the data transmitted on the carrier wave is not sent out
It is raw to change, when intercepting before session is performed on the carrier wave next time, can directly using
The CWS and random back count window size of storage is performing.
In described above, when intercepting before session is performed to multiple carrier waves, can be each
Carrier wave determines that each carrier wave (for example, is divided into one at frame 310 by single LBT parameters
Individual carrier wave packet), public LBT parameters can also be determined (for example, in frame for multiple carrier waves
Two or more carrier waves are divided in a carrier wave packet at 310).Each carrier wave packet tool
Have single LBT parameters for transmission mode in share public compared to multiple carrier waves
The mode of LBT parameters, can have lower complexity and single carrier LBT processes are had
Minimum change, and the different services of the different pieces of information transmitted on each carrier wave can be met
Prescription.However, due to being to use different LBT parameters for each carrier wave, it is high
The data of priority are by correspondence high LBT priority types, and thus may have higher
Carrier wave access chance.The lower priority for being so likely difficult to guarantee on other carrier waves
The carrier wave of the quality of service requirement of data and these data accesses chance.In this case,
Carrier wave can multiple carrier waves between be maintained to access using public LBT parameters across multiple carrier waves
It is well balanced between the quality of service requirement of the data transmitted in chance and carrier wave.
Although discussing embodiments of the invention in the environment of LTE, it should be noted that
Embodiments of the invention can be using to other communication systems, including but not limited to：Broadband code
Divide UMTS (UMTS) the land wireless access of multiple access (WCDMA)
(UTRA), which adopts following communication protocol：Such as high-speed packet access (HSPA) and/
Or evolved HSPA (HSPA+), also including CDMA2000, CDMA20001X,
CDMA2000EV-DO, global system for mobile communications (GSM), enhanced data rates
GSM evolution (EDGE), GSM EDGE (GERAN) networks and support exist
LTE- specified in one or more third generation partner programs (3GPP) specification is senior
(LTE-A) Evolved UMTS Terrestrial wireless access (E-UTRA) network eated dishes without rice or wine.
Fig. 6 show the one embodiment according to the disclosure in multi-carrier transmission
The schematic block diagram of the device 600 intercepted before session.In certain embodiments, device 600
Can be that (for example, 124) UE 122 or UE or are included in user equipment to user equipment
Among.In other embodiment, device 600 can be that (for example, BS is 110) for base station
Or among being included in base station.
As shown in fig. 6, device 600 includes carrier wave division unit 610, being configured to will be multiple
Carrier wave is divided into the packet of at least one carrier wave.Device 600 also includes priority determining unit
620, be configured to based on will be in multiple carrier waves each carrier wave on the industry of data block transmitted
Service type, is that each the carrier wave packet in the packet of at least one carrier wave determines that corresponding LBT is excellent
First level type, wherein each LBT priority type correspond to what is intercepted before being used to perform session
Different parameters set.Device 600 further includes to intercept performance element 630, is configured to base
The corresponding parameter sets of LBT priority types determined by, are grouped at least one carrier wave
In the included carrier wave of each carrier wave packet on perform session before intercept, to determine multiple loads
Whether each carrier wave in ripple can be used for transmission data block.
According to one embodiment of the disclosure, carrier wave division unit 610 is configured to
Multiple carrier waves are divided into into multiple carrier wave packets, during each carrier wave packet includes multiple carrier waves
One carrier wave.
According to one embodiment of the disclosure, carrier wave division unit 610 is configured to
At least two carrier waves adjacent on same frequency band are divided in a carrier wave packet.
According to one embodiment of the disclosure, multiple carrier waves include unauthorized carrier wave.
According to one embodiment of the disclosure, priority determines that Unit 620 are further configured
For：It is determined that will be grouped on included carrier wave in the first carrier in the packet of at least one carrier wave
The type of service of the data block of transmission corresponds to multiple LBT priority types；And from multiple
Highest or minimum LBT priority types is selected to be used as first carrier in LBT priority types
The LBT priority types of packet.
According to one embodiment of the disclosure, the parameter sets of each LBT priority type are extremely
Include maximum contention window and minimum competition window less.In this embodiment, intercept execution
Unit 630 can include contention window size determining unit, be configured to determine that and each load
The corresponding contention window size of wavelength-division group, contention window size are grouped corresponding in carrier wave
Maximum contention window in the parameter sets of LBT priority types and minimum competition window it
Between.Intercepting performance element 630 can also include random back count window size determining unit,
It is configured to be grouped corresponding contention window size based on each carrier wave, it is determined that being grouped with carrier wave
Corresponding random back count window size, the random back count window size are indicated true
Determine accumulative idle channel of the carrier wave in idle condition before carrier wave can be used for transmission data block
Assessment time slot.Intercept performance element 630 and may further include and intercept performance element, matched somebody with somebody
It is set to and corresponding random back count window size is grouped based on each carrier wave, is grouped in carrier wave
Intercept before session is performed on included carrier wave.
According to one embodiment of the disclosure, the parameter sets of each LBT priority type are extremely
Include the time delay for intercepting before session less, indicate the time delay to comment in idle channel
Estimate carrier wave after the busy state to before proceeding clear channel assessment (CCA) next time
Minimum latency.In this embodiment, intercept performance element and be configured to base
The time delay of each carrier wave packet correspondence LBT priority type, wrapped in carrier wave packet
Intercept before session is performed on the carrier wave for including.
According to one embodiment of the disclosure, device 600 may further include data transfer
Unit, is configured to respond to detect at least one of multiple carrier waves carrier wave and can be used to pass
Transmission of data block, transmits corresponding data block at least one carrier wave.
According to one embodiment of the disclosure, the parameter sets of each LBT priority type are extremely
Include maximum transmitted holding time less, and wherein at least two carrier wave is detected as can be used for
Transmission data block, and at least two carrier waves are included in different carrier waves packets.At this
In individual embodiment, device 600 may further include holding time determining unit, be configured
To determine that the carrier wave for including at least two carrier waves is grouped the parameter of corresponding LBT priority types
The minimum time value in maximum transmitted holding time in set.Data transmission unit can enter
One step is configured to, with minimum time value and simultaneously transmits accordingly at least two carrier waves
Data block.
According to one embodiment of the disclosure, adjusted contention window size is for corresponding
LBT next time is performed on the included carrier wave of carrier wave packet.
According to one embodiment of the disclosure, device 600 may further include competition window
Size adjustment unit, is configured to after corresponding data block is transmitted, based on predetermined criterion
Carrier wave to adjust including at least one carrier wave is grouped corresponding contention window size or adjustment
Each carrier wave in the packet of at least one carrier wave is grouped corresponding contention window size.
According to one embodiment of the disclosure, predetermined criterion based on the following at least one
：The feedback of the data transfer on the carrier wave included to each carrier wave packet；And every
The result of the LSB detections performed on the included carrier wave of individual carrier wave packet.
According to one embodiment of the disclosure, device 600 may further include random back
Count window size adjusting unit, is configured to after corresponding data block is transmitted, updates
Each carrier wave in the packet of at least one carrier wave is grouped corresponding random back count window chi
It is very little.
According to one embodiment of the disclosure, adjusted random back count window size is used
Once LBT is performed in being grouped on included carrier wave in corresponding carriers.
As can be seen that the device 600 of Fig. 6 can realize process as shown in Figure 3, and
Although and be not further indicated, device 600 can include more functional units with realize knot
Close the multiple embodiments described by the process 300 of Fig. 3.
It should be noted that embodiment of the disclosure can pass through hardware, software or software
With being implemented in combination in for hardware.Hardware components can be realized using special logic；Software portion
Point can store in memory, by appropriate instruction execution system, for example microprocessor or
Person's special designs hardware is performing.It will be understood by those skilled in the art that above-mentioned sets
Standby and method using computer executable instructions and/or can be included in processor control routine
To realize, such as in the such as mounting medium of disk, CD or DVD-ROM, such as read-only
The programmable memory or such as optics or electrical signal carrier of memorizer (firmware)
Such code is provided in data medium.The equipment and its device of the disclosure can be by such as
The quasiconductor of super large-scale integration OR gate array, logic chip, transistor etc.,
Or the programmable hardware device of field programmable gate array, programmable logic device etc.
Hardware circuit realize, it is also possible to by various types of computing devices software realize,
Can also be realized by the combination of above-mentioned hardware circuit and software such as firmware.
Although it should be noted that some units of device are referred in above-detailed
Or subelement, but this division is only not enforceable.In fact, according to the disclosure
Embodiment, the feature and function of above-described two or more devices can be filled at one
Put middle materialization.Conversely, the feature and function of an above-described device can be further
It is divided into by multiple devices to embody.
Although additionally, describe the operation of method of disclosure in the accompanying drawings with particular order,
It is that this does not require that or imply and these operations must be performed according to the particular order, or
It is that the operation having to carry out shown in whole could realize desired result.Conversely, in flow chart
The step of description, can change execution sequence.Additionally or alternatively, it is convenient to omit some steps
Suddenly, multiple step stipulations are performed for a step, and/or a step is decomposed into multiple
Step is performed.
Although describing the disclosure by reference to some specific embodiments, it should be appreciated that, this
It is open to be not limited to disclosed specific embodiment.The disclosure is intended to claims
Spirit and scope in included various modifications and equivalent arrangements.The model of claims
Enclose and meet broadest explanation, so as to include all such modifications and equivalent structure and function.
Claims (29)
1. a kind of method for LBT is intercepted before the session in multi-carrier transmission, including：
Multiple carrier waves are divided into into the packet of at least one carrier wave；
Based on will be in the plurality of carrier wave each carrier wave on the service class of data block transmitted
Type, is that each the carrier wave packet at least one carrier wave packet determines that corresponding LBT is excellent
First level type, wherein each LBT priority type are corresponded to for performing the LBT not
Same parameter set；And
The corresponding parameter sets of LBT priority types based on determined by, described at least one
The LBT is performed on each carrier wave included by carrier wave packet in individual carrier wave packet, with true
Whether each carrier wave in fixed the plurality of carrier wave can be used for transmitting the data block.
2. method according to claim 1, wherein multiple carrier waves are divided at least
Individual carrier wave packet includes：
The plurality of carrier wave is divided into into multiple carrier wave packets, wherein each carrier wave packet includes
A carrier wave in the plurality of carrier wave.
3. method according to claim 1, wherein multiple carrier waves are divided at least
Individual carrier wave packet includes：
At least two carrier waves adjacent on same frequency band are divided in a carrier wave packet.
4. method according to claim 1, wherein the plurality of carrier wave includes unauthorized
Carrier wave.
5. method according to claim 1, wherein being grouped at least one carrier wave
In the packet of each carrier wave determine that corresponding LBT priority types include：
It is determined that load that will be included by the first carrier packet at least one carrier wave packet
The type of service of the data block transmitted on ripple corresponds to multiple LBT priority types；And
Highest or minimum LBT priority class are selected from the plurality of LBT priority types
Type is used as the LBT priority types of first carrier packet.
6. method according to any one of claim 1 to 5, wherein each LBT
The parameter sets of priority type at least include maximum contention window and minimum competition window, and
And
The carrier wave included by each carrier wave packet wherein at least one carrier wave packet
It is upper to perform the LBT and include：
It is determined that with each carrier wave corresponding contention window size of packet, the competition window
Size is grouped the maximum in the parameter sets of corresponding LBT priority types in the carrier wave
Between competition window and minimum competition window；
Corresponding contention window size is grouped based on each carrier wave, it is determined that with the carrier wave
Corresponding random back count window size is grouped, wherein the random back count window chi
It is very little to indicate it is determined that carrier wave can be used for transmission data block as described before carrier wave in idle condition
Accumulative clear channel assessment (CCA) time slot；And
Corresponding random back count window size is grouped based on each carrier wave, described
The LBT is performed on the included carrier wave of carrier wave packet.
7. method according to claim 6, the wherein ginseng of each LBT priority type
Manifold is bonded to the time delay for including for the LBT less, indicates in sky the time delay
Channel assessment is commented to proceeding idle channel next time after the busy state to carrier wave
Minimum latency before estimating, and
Wherein perform the LBT on the included carrier wave of carrier wave packet further to wrap
Include：
Based on the time delay of each carrier wave packet correspondence LBT priority type, in institute
State the LBT is performed on the included carrier wave of carrier wave packet.
8. method according to claim 6, further includes：
Can be used for transmission data in response to detecting at least one of the plurality of carrier wave carrier wave
Block, transmits corresponding data block at least one carrier wave.
9. method according to claim 8, the wherein ginseng of each LBT priority type
Manifold is bonded to, and wherein at least two carrier wave is detected
To can be used for transmission data block, and at least two carrier wave is included in different carrier waves
In packet, methods described is further included：
It is determined that being grouped corresponding LBT priority types including the carrier wave of at least two carrier wave
Parameter sets in maximum transmitted holding time in minimum time value, and
Wherein transmitting corresponding data block at least one carrier wave includes：
Phase is transmitted simultaneously using the minimum time value at least two carrier wave
The data block answered.
10. method according to claim 8, further includes：
After corresponding data block is transmitted, adjusted including described based on predetermined criterion
The carrier wave of at least one carrier wave is grouped at least one described in corresponding contention window size or adjustment
Each carrier wave in individual carrier wave packet is grouped corresponding contention window size.
11. methods according to claim 10, wherein adjusted contention window size
For performing once LBT on the included carrier wave of corresponding carriers packet.
12. methods according to claim 10, wherein the predetermined criterion is based on following
At least one in items：
The feedback of the data transfer on the carrier wave included to each carrier wave packet；And
The result of the LBT performed on the included carrier wave of each carrier wave packet.
13. methods according to claim 8, further include：
After corresponding data block is transmitted, update at least one carrier wave packet
Each carrier wave be grouped corresponding random back count window size.
14. methods according to claim 13, wherein adjusted random back is counted
Window size performs once LBT for being grouped on included carrier wave in corresponding carriers.
A kind of 15. devices for LBT is intercepted before the session in multi-carrier transmission, including：
Carrier wave division unit, is configured to for multiple carrier waves to be divided into the packet of at least one carrier wave；
Priority determining unit, is configured to based on will carry in each in the plurality of carrier wave
The type of service of the data block transmitted on ripple, is each during at least one carrier wave is grouped
Carrier wave packet determines corresponding LBT priority types, wherein each LBT priority type pair
Ying Yu is used for the different parameters set for performing the LBT；And
Performance element is intercepted, the LBT priority types based on determined by is configured to corresponding
Parameter sets, the included load of each the carrier wave packet at least one carrier wave packet
The LBT is performed on ripple, whether be can be used for each carrier wave determined in the plurality of carrier wave
Transmit the data block.
16. devices according to claim 15, wherein the carrier wave division unit enters one
Step is configured to for the plurality of carrier wave to be divided into multiple carrier wave packets, wherein each carrier wave point
Group includes a carrier wave in the plurality of carrier wave.
17. devices according to claim 15, wherein the carrier wave division unit enters one
Step is configured to at least two carrier waves adjacent on same frequency band to be divided in a carrier wave point
In group.
18. devices according to claim 15, wherein the plurality of carrier wave includes not awarding
Power carrier wave.
19. devices according to claim 16, wherein the priority determining unit is entered
One step is configured to：
It is determined that load that will be included by the first carrier packet at least one carrier wave packet
The type of service of the data block transmitted on ripple corresponds to multiple LBT priority types；And
Highest or minimum LBT priority class are selected from the plurality of LBT priority types
Type is used as the LBT priority types of first carrier packet.
20. devices according to any one of claim 15 to 19, wherein each LBT
The parameter sets of priority type at least include maximum contention window and minimum competition window, and
And
Wherein described performance element of intercepting includes：
Contention window size determining unit, it is right with each carrier wave packet to be configured to determine that
The contention window size answered, the contention window size are grouped corresponding in the carrier wave
Maximum contention window in the parameter sets of LBT priority types and minimum competition window it
Between；
Random back count window size determining unit, is configured to based on each carrier wave
Corresponding contention window size is grouped, it is determined that random back meter corresponding with carrier wave packet
Number window size, the random back count window size are indicated it is determined that carrier wave can be used to pass
Accumulative clear channel assessment (CCA) time slot of the transmission of data block as described before carrier wave in idle condition；
And
Performance element is intercepted, is configured to be moved back based on the packet of each carrier wave is corresponding at random
Count window size is kept away, and the LBT is performed on the included carrier wave of carrier wave packet.
21. devices according to claim 20, wherein each LBT priority type
Parameter sets at least include the time delay for the LBT, indicate the time delay
Clear channel assessment (CCA) to carrier wave after the busy state to proceeding idle channel next time
Minimum latency before assessment, and
Wherein intercept performance element to be configured to based on each carrier wave packet correspondence LBT
The time delay of priority type, perform on the included carrier wave of carrier wave packet described
LBT。
22. devices according to claim 20, further include：
Data transmission unit, is configured to respond to detect in the plurality of carrier wave at least
One carrier wave can be used for transmission data block, and corresponding number is transmitted at least one carrier wave
According to block.
23. devices according to claim 22, wherein each LBT priority type
Parameter sets at least include maximum transmitted holding time, and wherein at least two carrier wave is tested
Survey to can be used for transmission data block, and at least two carrier wave is included in different loads
In wavelength-division group, described device is further included：
Holding time determining unit, is configured to determine that the load including at least two carrier wave
In maximum transmitted holding time in the parameter sets of the corresponding LBT priority types of wavelength-division group
Minimum time value, and
Wherein described data transmission unit is configured to exist using the minimum time value
Corresponding data block is transmitted simultaneously at least two carrier wave.
24. devices according to claim 22, further include：
Contention window size adjustment unit, be configured to transmit corresponding data block it
Afterwards, it is corresponding including the carrier wave packet of at least one carrier wave to adjust based on predetermined criterion
Contention window size or each the carrier wave packet adjusted at least one carrier wave packet are right
The contention window size answered.
25. devices according to claim 24, wherein adjusted contention window size
For performing once LBT on the included carrier wave of corresponding carriers packet.
26. devices according to claim 24, wherein the predetermined criterion is based on following
At least one in items：
The feedback of the data transfer on the carrier wave included to each carrier wave packet；And
The result of the LBT performed on the included carrier wave of each carrier wave packet.
27. devices according to claim 22, further include：
Random back count window size adjusting unit, is configured to corresponding in transmission
After data block, each the carrier wave packet updated at least one carrier wave packet is corresponding
Random back count window size.
28. devices according to claim 27, wherein adjusted random back is counted
Window size performs once LBT for being grouped on included carrier wave in corresponding carriers.
29. devices according to claim 15, wherein described device include base station or
User equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510623301.4A CN106559797B (en) | 2015-09-25 | 2015-09-25 | Method and apparatus for being listened to before the session in multi-carrier transmission |
| PCT/IB2016/001339 WO2017051236A1 (en) | 2015-09-25 | 2016-08-25 | Method and apparatus for listen-before-talk in multi-carrier transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510623301.4A CN106559797B (en) | 2015-09-25 | 2015-09-25 | Method and apparatus for being listened to before the session in multi-carrier transmission |
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| CN106559797B CN106559797B (en) | 2019-09-03 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028489A1 (en) * | 2016-08-12 | 2018-02-15 | 中兴通讯股份有限公司 | Data transmission method and apparatus |
| CN109151844A (en) * | 2017-06-15 | 2019-01-04 | 中兴通讯股份有限公司 | Method, terminal and the system communicated between a kind of terminal |
| CN109392176A (en) * | 2017-08-11 | 2019-02-26 | 华为技术有限公司 | Method for sending information and relevant device |
| WO2019104470A1 (en) * | 2017-11-28 | 2019-06-06 | 南通朗恒通信技术有限公司 | Method and apparatus used in base station device of unlicensed frequency spectrum |
| CN109937603A (en) * | 2017-05-03 | 2019-06-25 | 华为技术有限公司 | Transmission method competition-based and equipment |
| WO2020029262A1 (en) * | 2018-08-10 | 2020-02-13 | 北京小米移动软件有限公司 | Monitoring method and apparatus, device, and storage medium |
| CN110999364A (en) * | 2017-08-08 | 2020-04-10 | 夏普株式会社 | Communication device and communication method |
| CN111758293A (en) * | 2018-01-23 | 2020-10-09 | 三星电子株式会社 | Listen-before-talk for broadband operation of NR unlicensed spectrum |
| CN112166626A (en) * | 2018-07-27 | 2021-01-01 | 索尼公司 | Electronic device, wireless communication method, and computer-readable medium |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10951366B2 (en) | 2018-02-16 | 2021-03-16 | Qualcomm Incorporated | Uplink transmission collision management |
| US11849482B2 (en) * | 2019-09-13 | 2023-12-19 | Qualcomm Incorporated | Synchronization of listen before talk back-off for synchronous access in unlicensed spectrum |
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| CN116939799A (en) * | 2022-04-02 | 2023-10-24 | 维沃移动通信有限公司 | Carrier wave determining method, device, terminal and readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971682A (en) * | 2008-03-14 | 2011-02-09 | 艾利森电话股份有限公司 | Method and arrangement for prioritising channel allocation |
| CN102098696A (en) * | 2009-12-10 | 2011-06-15 | 大唐移动通信设备有限公司 | Method, system and device for measuring multi-carrier system |
| CN104333902A (en) * | 2014-11-06 | 2015-02-04 | 东莞宇龙通信科技有限公司 | Data synchronization method, synchronization system, equipment having base station functions and terminal |
| CN104333873A (en) * | 2014-11-28 | 2015-02-04 | 东莞宇龙通信科技有限公司 | Channel detection method and system, as well as equipment and terminal having functions of base station |
-
2015
- 2015-09-25 CN CN201510623301.4A patent/CN106559797B/en active Active
-
2016
- 2016-08-25 WO PCT/IB2016/001339 patent/WO2017051236A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971682A (en) * | 2008-03-14 | 2011-02-09 | 艾利森电话股份有限公司 | Method and arrangement for prioritising channel allocation |
| CN102098696A (en) * | 2009-12-10 | 2011-06-15 | 大唐移动通信设备有限公司 | Method, system and device for measuring multi-carrier system |
| CN104333902A (en) * | 2014-11-06 | 2015-02-04 | 东莞宇龙通信科技有限公司 | Data synchronization method, synchronization system, equipment having base station functions and terminal |
| CN104333873A (en) * | 2014-11-28 | 2015-02-04 | 东莞宇龙通信科技有限公司 | Channel detection method and system, as well as equipment and terminal having functions of base station |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028489A1 (en) * | 2016-08-12 | 2018-02-15 | 中兴通讯股份有限公司 | Data transmission method and apparatus |
| CN109937603B (en) * | 2017-05-03 | 2021-12-28 | 华为技术有限公司 | Contention-based transmission method and device |
| CN109937603A (en) * | 2017-05-03 | 2019-06-25 | 华为技术有限公司 | Transmission method competition-based and equipment |
| CN109151844A (en) * | 2017-06-15 | 2019-01-04 | 中兴通讯股份有限公司 | Method, terminal and the system communicated between a kind of terminal |
| CN110999364A (en) * | 2017-08-08 | 2020-04-10 | 夏普株式会社 | Communication device and communication method |
| CN109392176A (en) * | 2017-08-11 | 2019-02-26 | 华为技术有限公司 | Method for sending information and relevant device |
| WO2019104470A1 (en) * | 2017-11-28 | 2019-06-06 | 南通朗恒通信技术有限公司 | Method and apparatus used in base station device of unlicensed frequency spectrum |
| CN111133706A (en) * | 2017-11-28 | 2020-05-08 | 上海朗帛通信技术有限公司 | Method and device used in base station equipment of unlicensed spectrum |
| US11381440B2 (en) | 2017-11-28 | 2022-07-05 | Shanghai Langbo Communication Technology Company Limited | Method and device in base station for unlicensed spectrum |
| US11743088B2 (en) | 2017-11-28 | 2023-08-29 | Shanghai Langbo Communication Technology Company Limited | Method and device in base station for unlicensed spectrum |
| CN111133706B (en) * | 2017-11-28 | 2020-11-06 | 上海朗帛通信技术有限公司 | Method and device used in base station equipment of unlicensed spectrum |
| CN111758293A (en) * | 2018-01-23 | 2020-10-09 | 三星电子株式会社 | Listen-before-talk for broadband operation of NR unlicensed spectrum |
| US11785649B2 (en) | 2018-01-23 | 2023-10-10 | Samsung Electronics Co. , Ltd. | Listen-before-talk for wideband operations of NR unlicensed spectrum |
| CN112166626B (en) * | 2018-07-27 | 2024-04-09 | 索尼公司 | Electronic device, wireless communication method, and computer-readable medium |
| CN112166626A (en) * | 2018-07-27 | 2021-01-01 | 索尼公司 | Electronic device, wireless communication method, and computer-readable medium |
| WO2020029262A1 (en) * | 2018-08-10 | 2020-02-13 | 北京小米移动软件有限公司 | Monitoring method and apparatus, device, and storage medium |
| US11937296B2 (en) | 2018-08-10 | 2024-03-19 | Beijing Xiaomi Mobile Software Co., Ltd. | Monitoring method and apparatus, device, and storage medium |
| CN113692776A (en) * | 2019-04-08 | 2021-11-23 | 高通股份有限公司 | Multi-subband LBT operation |
| CN113692776B (en) * | 2019-04-08 | 2023-11-21 | 高通股份有限公司 | Multi-subband LBT operation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017051236A1 (en) | 2017-03-30 |
| CN106559797B (en) | 2019-09-03 |
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