CN107889114A - A kind of method and apparatus of unlicensed spectrum channel occupancy - Google Patents
A kind of method and apparatus of unlicensed spectrum channel occupancy Download PDFInfo
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- CN107889114A CN107889114A CN201710313512.7A CN201710313512A CN107889114A CN 107889114 A CN107889114 A CN 107889114A CN 201710313512 A CN201710313512 A CN 201710313512A CN 107889114 A CN107889114 A CN 107889114A
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- 238000001228 spectrum Methods 0.000 title claims abstract description 34
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- 230000005540 biological transmission Effects 0.000 claims description 145
- 238000012546 transfer Methods 0.000 claims description 34
- 230000002860 competitive effect Effects 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 13
- 238000013475 authorization Methods 0.000 claims description 12
- 230000001960 triggered effect Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 abstract description 15
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 11
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Classifications
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
- H04W74/0816—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA carrier sensing with collision avoidance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
A kind of method and apparatus of unlicensed spectrum channel occupancy, method include：Network side equipment generates the first control information, and first control information is used to indicate the channel occupancy parameter at least one COT；First control information is sent at least one terminal device by network side equipment, so that at least one terminal device is communicated according to first control information with the network side equipment at least one COT.By using this programme, on the premise of the signaling consumption of dynamic notification channel occupancy parameter is reduced, the channel occupancy configuration overall picture during terminal device channel knowledge occupancy can also be caused, then the more fine-grained channel occupancy parameter provided according to the first control information, the monitoring to down channel is adjusted flexibly, so as to be advantageous to the power consumption that terminal device reduces monitoring, accordingly reduction terminal device to down channel.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of unlicensed spectrum channel occupancy method and apparatus.
Background technology
In the communication system disposed based on unlicensed spectrum, each node is big by the receiving power in unlicensed spectrum
It is small to judge its busy-idle condition, if receiving power is less than certain thresholding, then it is assumed that do not interfere with source and place in unlicensed spectrum
In idle condition, then can sends signal in unlicensed spectrum, and this mechanism sent afterwards of first monitoring is referred to as first listening
(English full name is said afterwards：Listen Before Talk, English abbreviation：LBT), can avoid between each node using unauthorized
Conflict during frequency spectrum resource.Because each node is come using/shared Radio Resource, so can cause non-award by way of competition
Transmission initial time on power frequency spectrum is not fixed, and the shared frequency domain channel width of transmission is assessed also with channel idle every time
As a result difference and change, while the maximum channel occupancy duration once transmitted is also restrained, and is moved without each node of normal direction
State indicates each channel occupancy duration.
At present, in adopting wireless fidelity technology (Wi-Fi) system, carrying package contains transmission opportunity in each packet header
(English full name：Transmit Opportunity, English abbreviation：TXOP control information), the TXOP are used to indicate notebook data
Remaining TXOP durations after bag transmission bandwidth used, the duration of notebook data bag transmission and notebook data end-of-packet.It is although surplus
Remaining TXOP durations can dynamic update instruction, but subframe up-downgoing that can not be in dynamic instruction residue channel occupancy duration is matched somebody with somebody
Put, node still needs lasting monitoring control information and can not enter energy saver mode.
Because the channel occupancy parameter of each channel occupancy can be varied from, the TXOP used at present mechanism is not active
State, quickly notify to each node, so as to the communication being unfavorable between each node, also can not preferably adapt to the channel of change/
Business.
The content of the invention
The invention provides a kind of method and apparatus of unlicensed spectrum channel occupancy, channel in the prior art can solve the problem that
The problem of taking the informing mechanism of parameter can not adapt to change faster channel or business.
In the method for the unlicensed spectrum channel occupancy that first aspect provides, network side equipment obtains the control of channel,
Then the first control information is generated, first control information is used to indicate the channel occupancy parameter at least one COT.Wherein
Channel occupancy parameter at least may include one of following information element：
It is the first COT, the frequency domain parameter that transmission signal uses in the first COT at least one COT, described
Time domain unit structure or the first transmission triggering information in first COT.
Wherein, the COT of information element the first refers to any COT at least one COT, if the first COT refers to last
During individual COT, then the data transfer that the channel occupancy parameter in the first indicated COT can only be used in the first COT；If
When first COT does not refer to last COT, the channel occupancy parameter in the first indicated COT can be only used for this
Data transfer in one COT, the data transfer in several COT behind the first COT is can be also used for, the embodiment of the present invention is not
The COT numbers of control can be used for be defined the channel occupancy parameter of data transfer in the first COT of instruction.
The frequency domain parameter that transmission signal uses in the first COT is mainly included in transmission signal in the first COT and used
Maximum channel frequency domain bandwidth and the frequency domain sub-band parameter that is used in the first COT.By the way that frequency domain sub-band parameter is indicated into end
End equipment, enable to terminal device accurately and rapidly to obtain frequency domain parameter, so as to carry out up transmission and downlink reception, carry
High uplink/downlink efficiency of transmission.
Time domain unit structure in first COT refers to：The type of time domain unit structure in first COT, and/or, first
The length of time domain unit structure in COT.By notifying the time domain unit structure in the first COT to terminal device, can cause
Terminal device only takes monitoring down channel in descending time domain unit, so as to reduce power consumption, also, according to this first
Time domain unit structure in COT carries out uplink in up domain portion, reach optimization terminal device up transmission and under
The purpose of row reception mechanism.
First transmission triggering information is the triggering information for referring to play COT transmission of triggering so that terminal device energy
Enough up domain portions after the first transmission triggering information is received carry out uplink, and the first transmission triggering information is specific
It can be used for：In the first COT of network side equipment triggering, the terminal device is using duration less than first threshold
LBT competitive channels.The first transmission triggering information can be a kind of specific random sequence, such as synchronizing sequence or leading sequence
Row.
Then, the first control information of generation is sent at least one terminal device by network side equipment so that it is described extremely
A few terminal device can enter according to first control information with the network side equipment at least one COT
Row communication.Optionally, network side equipment can send first control from the downlink transfer initial time in the first COT
Information.In addition, above-mentioned first control information can also be made by common control channel or terminal device dedicated control signaling or mandate
The descending control signaling of channel is sent, and can reach the purpose for reducing terminal device the first control information of blind detection.
Compared with current mechanism, in the embodiment of the present invention, network side equipment is by for indicating the channel at least one COT
The first control information for taking parameter is sent at least one terminal device, has both reduced the letter of dynamic notification channel occupancy parameter
Expense is made, again so that the channel occupancy during terminal device understand that channel occupancy configures overall picture, then according to the first control
The more fine-grained channel occupancy parameter that information is provided, is adjusted flexibly the monitoring to down channel, is set so as to be advantageous to terminal
The standby monitoring reduced to down channel, the corresponding power consumption for reducing terminal device.
To make more terminal devices listen to first control information, and accurately, quickly navigate to monitoring
The time-frequency location of one control information, the first control information can also be arranged and pass through common control channel order or the special control of terminal device
The descending control signaling of signaling or authorization channel is sent, so as to improve the probability that terminal device receives first control information,
And terminal device only needs to receive first control information in pre-defined time-frequency location, so as to reduce terminal device
The operation of the control information of blind detection first, accordingly also reduce the power consumption of terminal device.
In application scenes, the control that network side equipment obtains channel mainly passes through following two kinds of approach：
A, the control is voluntarily obtained by network side equipment
Before the network side equipment carries out downlink transfer, the network side equipment competes the first channel by LBT, into
After work(competes the first channel, it is possible to carry out downlink transfer by the first channel competed, while can also generate above-mentioned first
Control information, and it is handed down at least one terminal device.
Or when knowing that terminal device has uplink demand, the network side equipment passes through the letter of LBT competitions first
Road, after the channel of successful contention first, then above-mentioned first control information can be generated, and the first control information be issued at least one
Terminal device, and sent respectively to each terminal device for indicating that the terminal device carries out the up transmission of uplink
Authorization message, so that each terminal device carries out up transmission on the up running time-frequency resource sent indicated by authorization message.
B, by terminal device by the control right transfer of acquirement to network side equipment
After terminal device obtains the control of the first channel by LBT, the first channel can be used to carry out uplink, should
The second transmission triggering information can be carried in the uplink of terminal device, not carrying the second transmission triggering information can also be by the end
The operation that the uplink of end equipment is transmitted as a kind of triggering COT.
In the method that the unlicensed spectrum that second aspect provides takes, terminal device receives first that network side equipment is sent
Control information, first control information are used to indicate the channel occupancy parameter at least one COT.First control information is extremely
It may include one of following information element less：
The first COT, the frequency domain parameter that transmission signal uses in the first COT at least one COT, institute
State the time domain unit structure or the first transmission triggering information in the first COT.
Wherein, the COT of information element the first refers to any COT at least one COT, if the first COT refers to last
During individual COT, then the data transfer that the channel occupancy parameter in the first indicated COT can only be used in the first COT；If
When first COT does not refer to last COT, the channel occupancy parameter in the first indicated COT can be only used for this
Data transfer in one COT, the data transfer in several COT behind the first COT is can be also used for, the embodiment of the present invention is not
The COT numbers of control can be used for be defined the channel occupancy parameter of data transfer in the first COT of instruction.
The frequency domain parameter that transmission signal uses in the first COT is mainly included in transmission signal in the first COT and used
Maximum channel frequency domain bandwidth and the frequency domain sub-band parameter that is used in the first COT.By the way that frequency domain sub-band parameter is indicated into end
End equipment, enable to terminal device accurately and rapidly to obtain frequency domain parameter, so as to carry out up transmission and downlink reception, carry
High uplink/downlink efficiency of transmission.
Time domain unit structure in first COT refers to：The type of time domain unit structure in first COT, and/or, first
The length of time domain unit structure in COT.By notifying the time domain unit structure in the first COT to terminal device, can cause
Terminal device only takes monitoring down channel in descending time domain unit, so as to reduce power consumption, also, according to this first
Time domain unit structure in COT carries out uplink in up domain portion, reach optimization terminal device up transmission and under
The purpose of row reception mechanism.
First transmission triggering information is the triggering information for referring to play COT transmission of triggering so that terminal device energy
Enough up domain portions after the first transmission triggering information is received carry out uplink, and the first transmission triggering information is specific
It can be used for：In the first COT of network side equipment triggering, the terminal device is using duration less than first threshold
LBT competitive channels.The first transmission triggering information can be a kind of specific random sequence, such as synchronizing sequence or leading sequence
Row.
The terminal device according to first control information, at least one COT with the network side equipment
Communicated.
It is following it is several in the case of, terminal device may actively remove competitive channel：
1st, the control right transfer of channel can voluntarily be set to network side after competing to channel by LBT competitive channels
It is standby, above-mentioned first control information is then configured by network side equipment,
2nd, when following several situations occur, terminal device just actively goes to compete the first channel, so as to obtain the first channel
Control, such as be used in the 2nd COT at least one COT in the absence of the time domain unit structure of transmission signal
During row domain portion, or the time domain unit knot in the COT (such as the first COT) of network side equipment triggering for transmission signal
When descending domain portion in structure is not used to the second transmission triggering information, terminal device can remove competitive channel, or work as
When terminal device can not complete uplink in the COT that network side equipment triggers, the terminal device can be in current network side
After the COT of equipment triggering terminates, by LBT competitive channels, and uplink is carried out after competitive channel success, so as to trigger one
Secondary new COT transmission.
3rd, network side equipment informed some channel occupancy parameters needed for terminal device subsequent transmission in advance, then, should
Terminal device can carry the second transmission triggering letter by LBT competitive channels, and in the uplink after channel competition success
Breath.
, can be by the control right transfer of channel after terminal device obtains the control of channel in above-mentioned tri- kinds of situations of 1-3
To network side equipment, for example, the terminal device is in a manner of uplink, and the second transmission triggering is carried in the uplink
Information, the second transmission triggering information are used to notify the network side equipment and/or another terminal device：Will be at least one
The original transmission moment of the terminal device of first progress uplink in each COT in 3rd COT is as up
Triggering moment.So as to so that network side equipment generates corresponding control information and is handed down to each after the control of channel is obtained
Terminal device.Certainly, the terminal device can it is similar find signal by way of by the second transmission trigger information be sent to
The adjacent terminal device in own physical position, the LBT competitive channels that these terminal devices are less than first threshold using duration are triggered,
And uplink is carried out at least one 3rd COT of above-mentioned terminal device triggering, it is of course also possible to not send the second transmission
Information is triggered, can also reach and trigger the purpose that these terminal devices carry out uplink.
It should be noted that terminal device actively goes the control of competitive channel to need using duration higher than Second Threshold
LBT competitive channels, wherein, length of the duration higher than the LBT of Second Threshold and moving back at random during the terminal device monitor channel
Keep away duration correlation, it is seen then that by the random back duration for providing each terminal device monitor channel, it is ensured that multi-user is simultaneously
The progress of transmission without any confusion, so as to improve the efficiency of transmission of multi-user's simultaneous transmission.
In other application scenarios, terminal device is in addition to above-mentioned active competitive channel is to carry out uplink, also
Uplink can be carried out at least one 4th COT after other-end equipment active competitive channel, it is specific as follows：
The terminal device receives the second control information that network side equipment is sent, and the second control information indicates another end
Channel occupancy parameter at least one 4th COT of end equipment triggering, another terminal device trigger at least one 4th COT and passed
The flow of defeated flow and above-mentioned terminal device active competitive channel control, here is omitted.
Then, the terminal device can be according at least one 4th COT that second control information indicates
Channel occupancy parameter, enter at least one 4th COT of second control information instruction with the network side equipment
Row communication.
In addition, above-mentioned first control information and above-mentioned second control information are special by common control channel order or terminal device
The descending control signaling of control signaling or authorization channel is sent, and can be reached and be reduced terminal device the first control information of blind detection
Purpose.
Third aspect present invention provides a kind of network side equipment, has non-the awarding realized and correspond to the offer of above-mentioned first aspect
Weigh the function for the method that spectral channel takes.The function can be realized by hardware, can also be performed by hardware corresponding
Software is realized.Hardware or software include one or more modules corresponding with above-mentioned function phase, the module can be software and/
Or hardware.
In a kind of possible design, network side equipment includes：
Processing module, for generating the first control information, first control information is used to indicate at least one COT
Channel occupancy parameter；
Transceiver module, the first control information for the processing module to be generated are sent at least one terminal device,
So that at least one terminal device is according to first control information, with the network side equipment described at least one
Communicated in COT.
In a kind of possible design, network side equipment includes：
Processor, transceiver and the memory of interconnection；
Wherein, the memory is used for store program codes, and the processor is used to call the program in the memory
Code performs the technical scheme described in first aspect.
Fourth aspect present invention provides a kind of terminal device, has and realizes corresponding to the unauthorized of above-mentioned second aspect offer
The function for the method that spectral channel takes.The function can be realized by hardware, can also be performed by hardware corresponding soft
Part is realized.Hardware or software include one or more modules corresponding with above-mentioned function phase, the module can be software and/or
Hardware.
In a kind of possible design, terminal device includes：
Transceiver module, for receiving the first control information of network side equipment transmission, first control information is used to refer to
Show the channel occupancy parameter at least one COT；
Processing module, for first control information received according to the transceiver module, utilize the transmitting-receiving mould
Block is communicated at least one COT with the network side equipment.
In a kind of possible design, terminal device includes：
Processor, transceiver and the memory of interconnection；
Wherein, the memory is used for store program codes, and the processor is used to call the program in the memory
Code performs the technical scheme described in second aspect.
Compared to prior art, in scheme provided by the invention, network side equipment is by for indicating at least one COT
First control information of channel occupancy parameter is sent at least one terminal device, has both reduced dynamic notification channel occupancy parameter
Signaling consumption, again cause terminal device understand that channel occupancy during channel occupancy configuration overall picture, then according to first
The more fine-grained channel occupancy parameter that control information is provided, is adjusted flexibly the monitoring to lower channel, so as to be advantageous to terminal
Equipment reduces the monitoring to down channel, the corresponding power consumption for reducing terminal device.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the method for unlicensed spectrum channel occupancy in the present embodiment；
Fig. 2 is a kind of schematic diagram of time domain unit structure in the present embodiment；
Fig. 3 is another schematic diagram of time domain unit structure in the present embodiment；
Fig. 4 is another schematic diagram of time domain unit structure in the present embodiment；
Fig. 5 is another schematic diagram of time domain unit structure in the present embodiment；
Fig. 6 is a kind of structural representation of network side equipment in the present embodiment；
Fig. 7 is a kind of structural representation of terminal device in the present embodiment；
Fig. 8 is a kind of structural representation of the entity apparatus for the method that unlicensed spectrum channel occupancy is realized in the present embodiment
Figure.
Embodiment
The invention provides a kind of method and apparatus of unlicensed spectrum channel occupancy, it is mainly used in unlicensed spectrum, energy
Enough more fine-grained channel occupancy parameter is provided for terminal device so that terminal device understand that the channel during channel occupancy
Configuration overall picture is taken, so as to be advantageous to the power consumption that terminal device reduces monitoring, accordingly reduction terminal device to down channel.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments, is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing etc. are to be used to distinguish
Similar object, without for describing specific order or precedence.It should be appreciated that the data so used are in appropriate feelings
It can be exchanged under condition, so that the embodiments described herein can be real with the order in addition to the content for illustrating or describing herein
Apply.In addition, term " comprising " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, bag
Contained series of steps or module process, method, system, product or equipment be not necessarily limited to those steps clearly listed or
Module, but may include not list clearly or for the intrinsic other steps of these processes, method, product or equipment or
Module, the division of the module appeared in this paper, a kind of only division in logic, can have when realizing in practical application another
Outer dividing mode, such as multiple modules can be combined into or are integrated in another system, or some features can be ignored, or
Do not perform, in addition, shown or discussion mutual coupling or direct-coupling or communication connection can be passed through
Interface, INDIRECT COUPLING between module or communication connection can be electrical or other similar forms are not construed as limiting herein.
Also, the module or submodule illustrated as separating component can may not be separation physically, and can be can also
Be not physical module, or can be distributed in multiple circuit modules, can select according to the actual needs part therein or
Whole modules realize the purpose of scheme of the embodiment of the present invention.
Some concepts that first may relate to below to the embodiment of the present invention are simply introduced.
LBT：It is a kind of mechanism for avoiding the conflict between each node when using unlicensed spectrum resource, specifically,
Because the communication system disposed in unlicensed spectrum is typically based on the mode of competition to use/share Radio Resource, institute is following
For each node of linchpin whether before signal is sent, it is idle to monitor unlicensed spectrum first, such as by unlicensed spectrum
The size of receiving power judges its busy-idle condition, if receiving power is less than certain thresholding, then it is assumed that do not have in unlicensed spectrum
There is interference source and be in idle condition, then signal can be sent in the unlicensed spectrum, does not otherwise send signal.
Maximum channel takes duration (English full name：Maximum Channel Occupancy Time, English abbreviation：
MCOT)：Represent channel occupancy duration (the English full name of a transmitting procedure：Channel Occupancy Time, English letter
Claim：COT maximum).Type of service and shared unlicensed spectrum of the MCOT limited size in transmitted data
Use regulation.
Time domain unit：Referring to predefined spatial structure, the spatial structure present invention divided in time domain is not construed as limiting,
The structure of time domain unit mainly includes：Complete descending spatial structure, complete up spatial structure, the descending self-contained spatial structure of starting and
Originate up self-contained spatial structure.Time domain unit can be referred to as subframe, time slot (slot), mini-slot (mini-slot) or
Other similar titles of person, available for representing time-domain resource.By taking subframe as an example, the length of a subframe can be 1ms.With time slot
Exemplified by, can include in a time slot 7 OFDM (Orthogonal Frequency-Division Multiplexing, just
Hand over frequency division multiplexing) symbol, or, 14 OFDM symbols can be included in a time slot；By taking mini-slot as an example, in a mini-slot
Comprising OFDM symbol number can be less than OFDM symbol included in time slot.
Network side equipment in the present invention is a kind of equipment that terminal device is linked into wireless network, can be referred to as base
Stand, include but is not limited to：Evolved node B (English full name：Evolved Node Base, English abbreviation：ENB), wireless network
Controller (English full name：Radio Network Controller, English abbreviation：RNC), node B (English full name：Node B,
English abbreviation：NB), base station controller (English full name：Base Station Controller, English abbreviation：BSC), base station is received
Send out platform (English full name：Base Transceiver Station, English abbreviation：BTS), Home eNodeB is (for example, Home
Evolved NodeB, or Home Node B, English abbreviation：HNB), Base Band Unit (English full name：BaseBand Unit, English
Literary abbreviation：BBU).
Terminal device (Terminal Device) of the present invention, can refer to provide a user voice and/or data
Connective equipment, the portable equipment with wireless connecting function or other processing for being connected to radio modem are set
It is standby.Terminal device can be through wireless access network (English full name：Radio Access Network, English abbreviation：RAN) with one
Or multiple core nets are communicated, terminal device can be mobile terminal, such as mobile phone (or being " honeycomb " phone) and tool
There is the computer of mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted movement
Device, they exchange language and/or data with wireless access network.For example, PCS (English full name：Personal
Communication Service, English abbreviation：PCS) phone, wireless phone, Session initiation Protocol (SIP) phone, wireless sheet
Ground loop (Wireless Local Loop, English abbreviation：WLL) stand, personal digital assistant (English full name：Personal
Digital Assistant, English abbreviation：The equipment such as PDA).Wireless terminal is referred to as system, subscri er unit
(Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station
(Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote
Terminal), access terminal (Access Terminal), user terminal (User Terminal), terminal device, user agent
(User Agent), user equipment (User Device) or subscriber's installation (User Equipment).
Because network side equipment or terminal device are to obtain unlicensed spectrum based on competition, so competing unauthorized frequency every time
The channel occupancy parameters such as the channel occupancy duration of spectrum, channel occupancy bandwidth are not unalterable, in order that terminal device is timely
Know current channel occupancy parameter, and the advantageously communication between terminal device and network side equipment, the present invention is in fact
Apply example and mainly provide following technical scheme to the current channel occupancy parameter of terminal device offer：
Network side equipment obtains the control of channel, it is then determined that taking a COT of the channel, and generates for indicating
The control information of channel occupancy parameter at least one COT, the control information of generation is handed down at least one terminal device,
Due to indicating fine-grained channel occupancy parameter to terminal device, so, it can make it that these terminal devices are thin according to these
The channel occupancy parameter of granularity carries out up transmission and downlink reception, and the benefit of one of them has：Reach terminal device only to exist
Ability monitor channel when needing monitor channel, so as to reduce the purpose of terminal device power consumption.
Fig. 1 is refer to, providing a kind of method of unlicensed spectrum channel occupancy to the present invention below is illustrated,
Under unlicensed spectrum scene, network side equipment needs to be scheduled frequency spectrum resource therein, and network side equipment is obtaining first
After the control of channel, the control information of the first channel can be sent to each terminal device so that each terminal device can be true
Surely the time-frequency location of down dispatch information is received, so as to which the downlink reception mandate in down dispatch information receives data,
And up transmission mandate in down dispatch information sends data.The embodiment of the present invention specifically includes：
101st, network side equipment generates the first control information.
Wherein, first control information is used to indicate the channel occupancy parameter at least one COT.In view of based on competing
The channel occupancy parameter striven in each COT of the unlicensed spectrum of acquisition is not quite similar, can be only in first control information
Comprising the common control information that parameter is taken for describing the common signal channel in current COT, and/or, comprising follow-up for describing
The continuous COT of one or more in common signal channels take the common control informations of parameters, can also only include and be used to describe
The privately owned control information of channel occupancy parameter in current COT, or only include the channel for being used for describing in a follow-up COT and account for
With the privately owned control information of parameter, the common control information and the privately owned control information can also be included simultaneously.
Specifically, the first control information can take the first channel with instruction terminal equipment in a COT, can also refer to
Show that terminal device takes the first channel in follow-up COT.First control information can be only used for controlling terminal device working as
The first channel is taken in secondary COT；It can be used for controlling terminal device to take the first channel in continuous multiple COT；Can be with
Only when notifying terminal device first, how notice terminal device takes the first channel in first COT, COT below
Terminal device is not notified still further, but acquiescence follows the control information in first COT to take the first channel.In the present invention
Control information for channel occupancy each time, also, as the change of the factors such as type of service, terminal device exist
The control information meeting respective change of busy channel after each LBT, therefore, network side equipment needs the change according to type of service,
A control information is dynamically generated, also, can issue generation to terminal device after the control of acquirement channel every time
Control information.
Illustrated below for the channel occupancy parameter indicated by the first control information：
The channel occupancy parameter at least may include one of following information element：
It is the first COT, the frequency domain parameter that transmission signal uses in the first COT at least one COT, described
Time domain unit structure or the first transmission triggering information in first COT.
Wherein, the COT of information element the first refers to any COT at least one COT, if the first COT refers to last
During individual COT, then the data transfer that the channel occupancy parameter in the first indicated COT can only be used in the first COT；If
When first COT does not refer to last COT, the channel occupancy parameter in the first indicated COT can be only used for this
Data transfer in one COT, the data transfer in several COT behind the first COT is can be also used for, the embodiment of the present invention is not
The COT numbers of control can be used for be defined the channel occupancy parameter of data transfer in the first COT of instruction.Information element first
COT can represent with chronomere such as us or ms, or can also be with the OFDM symbol number included in the first COT come table
Show.Exemplarily, if with 10bits come the COT of indication information element the first, if value unit is us, information element first
COT span is [0~1023] us；If value unit is symbol, the COT of information element the first span for [0~
1023] individual symbol., can be by indicating grain in the case where not increasing the bits numbers for the COT of indication information element the first
(or being quantified precision) is spent to extend the span of information element.Such as when it is 1 OFDM symbol to indicate granularity,
2bits (sharing [00,01,10,11] four kind of situation) can represent [0,1,2,3] individual symbol；It is that 2 OFDM are accorded with instruction granularity
Number when, 2bits can represent [0,2,4,6] individual symbol；Indicate granularity be 3 OFDM symbols when, 2bits can represent [0,
3,6,9] individual symbol.
By the COT of information element the first by its OFDM symbol number included come exemplified by representing, as cyclic prefix (Cyclic
Prefix, CP) known to type or length when (for example being defaulted as conventional CP), can be shown by the channel occupancy parameter or
Implicit mode notifies the subcarrier spacing of terminal device OFDM symbol, and this is due to that the length of OFDM symbol depends primarily on it
The size at subcarrier in frequency domain interval；Otherwise, the channel occupancy parameter or other modes are passed through, it is also necessary to inform terminal device
CP types or length.Exemplarily, a kind of mode of display can be that first control information includes being used to represent first
The configuration parameter of COT OFDM symbol, it can include but is not limited in length, subcarrier spacing, CP types or length extremely
One item missing.A kind of implicit mode can be that the parameter for being used to represent the first COT OFDM symbol is with sending the first control
Parameter configuration is identical used by information, or it is described be used for represent the first COT OFDM symbol corresponding to subcarrier spacing with
Maximum subcarrier spacing is identical used by downlink transfer, or corresponding to the OFDM symbol for being used for the first COT of expression
Subcarrier spacing carries with maximum on each subband indicated in the frequency domain parameter used in transmission signal in the first COT
Wave spacing is identical.
The frequency domain parameter that transmission signal uses in the first COT is mainly included in transmission signal in the first COT and used
Maximum channel frequency domain bandwidth and the frequency domain sub-band parameter that is used in the first COT, transmission signal uses most in the first COT
Big channel frequency bandwidth refers to：Terminal device transmission signal is (including from network side equipment reception signal and to net in the first COT
Network side apparatus sends signal) the maximum channel frequency domain bandwidth that can use, then terminal device transmission signal in the first COT
The bandwidth that can be taken can only be less than or equal to the maximum channel bandwidth indicated by the first control information.
The frequency domain sub-band parameter used in the first COT refers to：For indicating that frequency band divides, between the subcarrier on each subband
Every the configured information with circulating prefix-length, the configured information includes any of following a, b and c：
A, in the value of frequency band division, the value of subcarrier spacing or the value of circulating prefix-length on each subband extremely
One item missing.
B, the sequence number that instruction frequency band divides, the sequence number of the subcarrier spacing on each subband of instruction or instruction circulating prefix-length
Sequence number at least one of.
C, the sequence number of the default combination of instruction, the default combination include frequency band divide, the subcarrier spacing on each subband and
At least one of in circulating prefix-length.
Because when terminal device carries out up transmission and downlink reception, network side equipment can be that terminal equipment configuration is a variety of
Frequency domain parameter, then terminal device can be indicated to by a, b or c so that terminal device can accurately and rapidly obtain frequency
Field parameter, also, can save signaling consumption when indicating c.
Time domain unit structure in first COT refers to：The type of time domain unit structure in first COT, and/or,
The length of time domain unit structure in first COT.Time domain unit type refer to a time domain unit be descending time domain unit, it is up
(the descending self-contained time domain unit of starting, or starting are up self-contained for time domain unit, part time domain unit, special time domain unit
Time domain unit) or blank time domain unit.Time domain unit length is the duration of time domain unit, the length on time domain unit
The division present invention is not construed as limiting.If the length of each time domain unit is included in the time domain unit structure in the first COT, then just
The first COT this information element need not be carried again., can by notifying the time domain unit structure in the first COT to terminal device
To cause terminal device only to take monitoring down channel in descending time domain unit, so as to reduce power consumption, also, according to this
Time domain unit structure in first COT carries out uplink in up domain portion, reaches the up hair of optimization terminal device
Send the purpose with downlink reception mechanism.
The length of time domain unit can represent with chronomere such as us or ms, or can also be with institute in the time domain unit
Comprising OFDM symbol represent, either can also be subframe, time slot or mini-slot according to the time domain unit to represent.
Exemplarily, the mode of the time domain unit structure in a kind of the first COT of instruction is at least to indicate described first
The length of first time domain unit in COT, the either length of last time domain unit or first time domain unit and most
The length of the latter time domain unit, the OFDM symbol number that above-mentioned indicating length mode can be included by indicating time domain unit
Or other manner is realized.In other embodiments, network side equipment can indicate that in first time domain
Other time domain units (for example, in units of subframe, time slot or mini-slot) between unit and last time domain unit
Number.
In some embodiments, when the protection intervals for being used for descending-up conversion in the first COT in the presence of one or more
(including required reserved transmitting-receiving conversion time between downlink transfer and uplink, and (can be for LBT time
Zero) when), i.e., needing to carry out downlink transfer and uplink in the first COT, the time domain unit knot in a kind of the first COT of instruction
The method of structure is the structure for the time domain unit at least indicating the protection interval comprising descending-up conversion, using time domain unit as
Exemplified by time slot, downlink transfer part and uplink part, downlink transfer part and uplink portion are included in a time slot
It can be mini-slot to divide, then the time domain unit is a time slot and is located at comprising two mini-slot and one between two mini-slot
Protection interval structure.In other embodiments, network side equipment can also further indicating downlink-up conversion guarantor
Initial time of the time domain unit (such as time slot) in the first COT where shield interval or the protection interval, such as
Relative to the time offset of the first COT initial times.
Network side equipment indicates that the benefit of the time domain unit structure in the first COT also includes to terminal device：If first
Indicate that a COT includes 8 subframes in control information, in addition to first subframe is descending sub frame, remaining is all up son
Frame, then, if terminal device is not received by the up transmission on itself in the descending control signaling of first subframe
Authorization message, then the terminal device can no longer monitor down channel since the second subframe, into energy-conservation or park mode, from
And reduce the power consumption of terminal device.
The first transmission triggering information is the triggering information for referring to play COT transmission of triggering so that terminal is set
It is standby to carry out uplink in the uplink part after receiving the first transmission triggering information, specifically, described the
One transmission triggering information may be used to indicate terminal device：In the first COT of network side equipment triggering, the terminal device
It is less than LBT (such as second class LBT) competitive channel of first threshold using duration, then carries out uplink.First transmission is touched
Photos and sending messages can be a kind of specific random sequence, such as synchronizing sequence or targeting sequencing, can play COT of triggering and pass
Defeated effect, it is easy to terminal device to carry out uplink in the first COT.
The term of validity of above-mentioned each channel occupancy parameter is the hair from the first control information for carrying the channel occupancy parameter
Moment or finish time is sent to count.
In addition, before network side equipment generates the first control information, network side equipment also needs to obtain the first channel
Control, obtain the mode of the control mainly have it is following two：
A, the control is voluntarily obtained by network side equipment
1st, before the network side equipment carries out downlink transfer, the network side equipment competes the first channel by LBT,
After the channel of successful contention first, it is possible to carry out downlink transfer by the first channel for competing, while can also generate above-mentioned the
One control information, and it is handed down at least one terminal device.
2nd, when knowing that terminal device has uplink demand, the network side equipment competes the first channel by LBT, into
After work(competes the first channel, then above-mentioned first control information can be generated, and the first control information is issued at least one terminal
Equipment, and sent respectively to each terminal device for indicating that the terminal device carries out the up transmission mandate of uplink
Information, so that each terminal device carries out up transmission on the up running time-frequency resource sent indicated by authorization message.
After the first control information is handed down to each terminal device by network side equipment, each terminal device is according to the first control
The instruction content of information, it can be competed in the COT that network side equipment triggers by using LBT of the duration less than first threshold
First channel, uplink is then carried out again, the time domain unit structure chart in COT transmission that network side equipment is triggered can
So that with reference to figure 2, i is positive integer, the data (Data) of transmission may include upstream data and/or downlink data in each COT.
B, the control is obtained by terminal device
Terminal device can take the first channel by LBT, obtain the control of the first channel, then entered using the first channel
Row uplink, a channel occupancy for the first channel can be then triggered accordingly.
After the control of the first channel is obtained, the triggering terminal adjacent with the physical position of terminal equipment is set terminal device
The standby situation for carrying out uplink is mainly including following (1), (2) and (3) three kinds：
(1), the authority of the resource allocation of the first channel can be transferred to network side equipment by the terminal device so that network
Side apparatus can be controlled to the first channel.After control is obtained, network side equipment firstly generates above-mentioned first control letter
Breath, then can be after terminal device carries out uplink can with send in the time domain unit of downlink transfer the first control information to
Each terminal device.In above-mentioned (1) in this case, because network side equipment has obtained control, then, receive this
The terminal device can of one control information goes to compete the first channel using duration less than the LBT of first threshold, to each terminal
Physical location between equipment is not required, can be it is adjacent to each other, can also be non-conterminous.
As shown in figure 3, under the scene of terminal device triggering COT transmission, network side equipment is obtaining the control of channel
Afterwards, the time for issuing control information can be using as shown in figure 3, the COT that Fig. 3 triggers as terminal deviceiInterior time domain unit structure, figure
3 DL Trigger then represent first descending domain portion of the network side equipment in the terminal device after uplink is originated
The first control information issued, current COT can be included in the DL TriggeriResidual time length configured information, COTiInterior biography
Defeated data (Data) may include upstream data and/or downlink data.
(2), the terminal device sends the second transmission triggering information, adjacent with the physical position of terminal equipment so as to trigger
Terminal device carries out uplink, can it is similar find signal by way of be sent to its adjacent with physical position of terminal equipment
His terminal device, the second transmission triggering information are carried in the upward signal of terminal device transmission.
(3), the terminal device does not send the second transmission triggering information, but the terminal adjacent with the physical position of terminal equipment
The uplink of the terminal device is considered as the triggering of a channel occupancy by equipment, can so as to the uplink of the terminal device
The triggering terminal device adjacent with the physical position of terminal equipment carries out uplink.
It is the time domain unit knot at least one COT for the channel occupancy that terminal device triggers such as Fig. 4 in the case of (3)
Structure, arranged from left to right according to time domain increasing, Fig. 4 is first COT1Interior time domain unit structure, represents the starting of terminal device
Uplink, another terminal device can be as DL Trigger, in COT using the uplink of the terminal device in Fig. 41
It is interior similarly, to be repeated no more come competitive channel, follow-up terminal device triggering COT transmission by LBT.Another terminal device can be
Multiple terminal devices, each terminal device in multiple terminal devices can be gone to compete the channel using shorter LBT and can passed through
LBT competes the channel, can carry out uplink afterwards.
In above-mentioned (2) and (3) two kinds of situations, the terminal device adjacent with the physical position of terminal equipment only needs to use
Duration goes to compete the first channel less than the LBT of first threshold.
For the COT of above-mentioned terminal device triggering scene, terminal device uses the first letter at least one 3rd COT
Road, upward signal is sent to the network side equipment, after network side equipment obtains control, another terminal device can also receive
The first control information sent to network side equipment, then another terminal device can be logical in corresponding at least one 3rd COT
Duration is crossed to go to compete the first channel less than the LBT of first threshold, and at least one 3rd COT of above-mentioned terminal device triggering
Up transmission and/or downlink reception are carried out, the physical location residing for another terminal device is near aforementioned terminals equipment.
It was found from the effect of the first control information, network side equipment can inform the terminal device subsequently every time transmission needed for
Channel occupancy parameter, then the terminal device can also carry when carrying out uplink in the upward signal of transmission
Two transmission triggering information, the second transmission triggering information refer to that network side equipment informs some of the terminal device subsequent transmission in advance
Channel occupancy parameter, in the COT transmitting scenes of terminal device triggering, the second transmission can be triggered into information forwarding by terminal device
Give other-end equipment.The second transmission triggering information can be used for notice network side equipment and/or other-end equipment：It incite somebody to action this
The original transmission of the terminal device of first progress uplink in each COT at least one 3rd COT of secondary triggering
Moment is as the uplink triggering moment.Or the second transmission triggering information can not also be carried, actively initiated for terminal device
Uplink can also play a part of the second transmission triggering information.Optionally, if terminal device this time take channel and it
Before to account for used channel identical, because each busy channel can change some channel occupancy parameters, then the second transmission triggering
Some public channel occupancy parameters in information still may come from the first control information issued before network side equipment.
It should be noted that the situation that terminal device competes the first channel mainly divides following several classes：
1st, terminal device directly can actively go to compete the first channel.
2nd, when following several situations occur, terminal device just actively goes to compete the first channel, so as to obtain the first channel
Control, such as be used in the 2nd COT at least one COT in the absence of the time domain unit structure of transmission signal
During row domain portion, or the time domain unit knot in the COT (such as the first COT) of network side equipment triggering for transmission signal
When descending domain portion in structure is not used to the second transmission triggering information, terminal device can remove competitive channel, or work as
When terminal device can not complete uplink in the COT that network side equipment triggers, the terminal device can be in current network side
After the COT of equipment triggering terminates, by LBT competitive channels, and uplink is carried out after competitive channel success, so as to trigger one
Secondary new COT transmission.
3rd, network side equipment informed some channel occupancy parameters needed for terminal device subsequent transmission in advance, then, should
Terminal device can carry the second transmission triggering letter by LBT competitive channels, and in the uplink after channel competition success
Breath.
In addition, for the COT transmission of terminal device triggering, terminal device is needed by duration higher than Second Threshold
LBT (such as the 4th class LBT) removes competitive channel, can just trigger once new COT transmission.In the more scene of uplink service
Under, if each terminal device is all spontaneous by LBT competitive channels, efficiency of transmission can be so influenceed, so in order to ensure to use
Family simultaneous transmission, by LBT competitive channel can be gone to limit on terminal device.For example, each terminal device can be supervised
The random back duration of channel is listened to be provided, accordingly, length of the foregoing duration higher than the LBT of Second Threshold and the terminal
Random back duration during equipment monitor channel is related, by providing the random back duration of each terminal device monitor channel,
The progress of multi-user's simultaneous transmission without any confusion can be ensured, so as to improve the efficiency of transmission of multi-user's simultaneous transmission.
After the control that network side equipment obtains the first channel, it may be determined that the COT of first channel, then generation control
Information processed is sent to terminal device, and the COT indicated in the control information sent first in this COT is the occupancy of whole channel
Duration, the channel occupancy duration indicated in the control information sent in follow-up data transfer then refer to this COT residue
Duration.In addition, the content of the control information transmitted by each data transfer in a COT may be the same or different.
102nd, the first control information is sent at least one terminal device by network side equipment.
Wherein, first control information can pass through common control channel order or terminal device dedicated control signaling or mandate
The descending control signaling of channel is sent, the common control channel order or terminal device dedicated control signaling or authorization channel it is descending
Control signaling includes control field, and the control field is used to carry first control information, what the control field was carried
First control information can be marked as Trigger.
First control information can be sent from the downlink transfer initial time of the first COT, for example, being used in the first COT
Descending domain portion in the time domain unit of transmission signal is sent, or in the initial time of the first COT or in institute
State in the starting downlink transfer moment transmission after the starting uplink in the first COT or the starting in the first COT
The descending domain portion of starting after row transmission is sent.
By taking a COT transmitting scene of terminal device triggering as an example, network side equipment can use when sending control information
Up self-contained time domain unit structure, descending time domain unit structure or descending self-contained time domain unit structure are originated, specifically may be used
So that with reference to figure 5, Fig. 5 is the time domain unit structure at least one COT, is arranged from left to right according to time domain increasing, the i in figure is
Positive integer, the data (Data) of the interior transmission of each COT may include upstream data and/or downlink data.(a) in Fig. 5 is i-th
Time domain unit structure (i.e. descending time domain unit structure) in COT, the DL Trigger in i-th of COT be after LBT,
And before downlink data transmission, and DL Trigger instruction be COT whole durations.
(b) in Fig. 5 is the time domain unit structure (originating up self-contained time domain unit structure) in i+1 COT,
The DL Trigger of (b) in Fig. 5 then represent network side equipment in the terminal device under first after originating uplink
The control information that row domain portion issues, and DL Trigger instruction be COT residual time length.Certainly, sent out in each COT
Sending the time-domain position of control information can change according to the structure of time domain unit.
Further, since the information transmitted in DL trigger can include channel occupancy parameter most basic in a COT, that
, DL trigger can be transmitted using a kind of time-frequency structure of acquiescence so that more terminal devices can understand the DL
Trigger, for example, the frequency domain position and subcarrier spacing of channel for transmitting DL trigger are preconfigured to fixed value,
DL trigger can also will be carried and periodically find signal (English full name：Discovery Signal, English letter
Claim：DRS in the time domain unit where), or carry in system broadcast message, or the descending control of authorization channel can also be passed through
Signaling processed indicates.
Above-mentioned at least one terminal device may include at least one end using identical time-domain resource and different frequency domain resources
End equipment, it be able to can also include making including the use of at least one terminal device of different time domain resource and same frequency resource
With at least one terminal device of different time domain resource and different frequency domain resources.Then existed using the terminal device of identical time-domain resource
The up domain portion of identical carries out uplink at least one COT of identical.
It should be noted that in the present invention, network side equipment can also continue to send the first control letter in a COT
Breath, the terminal device avoided do not hear first control information in Initial Channel Assignment.
103rd, at least one terminal device and the network side equipment according to first control information it is described extremely
Communicated in a few COT.
Each terminal device at least one terminal device can receive first control information, the control information
In initial issue while at least one terminal device can be issued, can also be in follow-up communication interaction, can be with broadcast
The mode such as message or periodic signal issues at least one terminal device.
If the terminal device does not complete uplink in the first COT, then network side equipment can also be again
It is determined that using at least one COT of first channel, corresponding control information is then sent to above-mentioned at least one terminal
Equipment, the control information are the channel occupancy parameter at least one COT of this determination so that above-mentioned at least one terminal is set
For according to the control information, communicated at least one COT of this determination with network side equipment.The control information can be with
It is identical or different with the first control information before, can be directed to identical channel (the first channel) or different channel (its
His channel) channel occupancy parameter, each channel occupancy parameter present invention specifically carried is not construed as limiting.
In addition, carrying out uplink in the COT itself triggered in above-mentioned terminal device, can also be set in another terminal
Uplink is carried out in the standby COT triggered, the flow of specific another terminal device triggering COT transmission is retouched with preceding sections
That states is obtained the control of the first channel by above-mentioned terminal device, identical with the COT transfer process for triggering once new, specifically no longer
Repeat.Accordingly, after the triggering of another terminal device is for the COT transmission of second channel, another terminal device equally can
By the control right transfer of second channel to network side equipment, network side equipment can then generate corresponding second control information,
Then the second control information is handed down to each terminal device (including above-mentioned terminal device and another terminal device), the second control letter
The entrained channel occupancy parameter of breath refers to the explanation of the first control information, and here is omitted.So, above-mentioned terminal device
, can be according to the channel at least one 4th COT that second control information indicates after second control information is received
Parameter is taken, at least one 4th COT of the second control information instruction, is communicated with network side equipment.
Compared with current mechanism, in the embodiment of the present invention, network side equipment is by for indicating the channel at least one COT
The first control information for taking parameter is sent at least one terminal device, has both reduced the letter of dynamic notification channel occupancy parameter
Expense is made, again so that the channel occupancy during terminal device understand that channel occupancy configures overall picture, then according to the first control
The more fine-grained channel occupancy parameter that information is provided, is adjusted flexibly the monitoring to down channel, is set so as to be advantageous to terminal
The standby monitoring reduced to down channel, the corresponding power consumption for reducing terminal device.
When multiple cells be present, if the terminal device receives the channel occupancy parameter in other cells COT, then
Conflict is taken to reduce transmission interference or channel resource, the terminal device can judge certainly according to these channel occupancy parameters
Oneself can wait the COT to terminate and then carry out LBT triggerings at which time domain unit in a COT without uplink
One new COT.
Accordingly, when multiple cells be present, if network side equipment receives the channel occupancy parameter in other cells COT
When, then conflict is taken to reduce transmission interference or channel resource, network side equipment can be according to these channel occupancy parameters
To judge that oneself which time domain unit in a COT can go to take the channel resource, the COT can be waited to terminate it
Afterwards, LBT busy channels are carried out then.
A kind of method that unlicensed spectrum takes in the present invention is illustrated above, below to the net of the execution above method
Network side apparatus and terminal device are described respectively.On channel occupancy parameter in any scheme shown in above-mentioned Fig. 1-Fig. 5,
The delivery time of one control information and the second control information, sending method and control action, the first transmission triggering information, second passes
Defeated triggering information etc. may be applicable to following network side equipments 60 and terminal device 70, subsequently repeat no more.
First, reference picture 6, network side equipment 60 is illustrated, network side equipment 60 includes：
Processing module 601, for generating the first control information, first control information is used to indicate at least one COT
Interior channel occupancy parameter；
Transceiver module 602, for the first control information to be sent at least one terminal device, so that described at least one
Terminal device is communicated according to first control information with the network side equipment at least one COT.
2nd, reference picture 7, terminal device 70 is illustrated, terminal device 70 includes：
Transceiver module 701, for receiving the first control information of network side equipment transmission, first control information is used for
Indicate the channel occupancy parameter at least one COT；
Processing module 702, for first control information received according to the transceiver module 701, using described
Transceiver module is communicated at least one COT with the network side equipment.
The processing module 702 is also used for the LBT competitive channels that duration is higher than Second Threshold；
Appearance during random back when length and the terminal device monitor channel of the duration higher than the LBT of Second Threshold
Close.
In some inventive embodiments, the processing module 702 is additionally operable to：
When time domain unit structure in the 2nd COT at least one COT for transmission signal is not present descending
During the part of domain, or it can not be used for the descending domain portion in the time domain unit structure of transmission signal in the first COT
When the second transmission triggering information, the channel or another channel are used at least one 3rd COT, utilizes the transmitting-receiving mould
Block 701 sends upward signal to the network side equipment, so that another terminal device is less than the LBT of first threshold using duration
The channel or another channel are competed, and uplink is carried out at least one 3rd COT.
Wherein, the upward signal carries the second transmission triggering information, and the second transmission triggering information is used to lead to
Know the network side equipment and/or another terminal device：By in each COT at least one 3rd COT
The original transmission moment of the terminal device of one progress uplink is as the uplink triggering moment.
In some inventive embodiments, the processing module 702 is additionally operable to：
The second control information of the network side equipment transmission, the instruction of the second control information are received using the transceiver module
Channel occupancy parameter at least one 4th COT of another terminal device triggering；
At least one 4th COT that second control information received according to the transceiver module 701 indicates
Interior channel occupancy parameter, the described at least one 4th indicated using the transceiver module 701 in second control information
Communicated in COT with the network side equipment.
It should be noted that receipts all in various embodiments of the present invention (including each embodiment shown in Fig. 6 and Fig. 7)
Entity device corresponding to sending out module can be transceiver, and entity device corresponding to all processing modules can be processor.Fig. 6
And each device shown in Fig. 7 can have structure as shown in Figure 8, when one of which device has knot as shown in Figure 8
During structure, processor and transceiver in Fig. 8 can realize it is foregoing to should device device embodiment provide processing module and
The same or analogous function of transceiver module, the method that the above-mentioned unlicensed spectrum of memory storage computing device in Fig. 8 takes
When need the program code that calls.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and module, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the module
Division, only a kind of division of logic function, can there is other dividing mode, such as multiple module or components when actually realizing
Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or
The mutual coupling discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or module
Close or communicate to connect, can be electrical, mechanical or other forms.
The module illustrated as separating component can be or may not be physically separate, show as module
The part shown can be or may not be physical module, you can with positioned at a place, or can also be distributed to multiple
On mixed-media network modules mixed-media.Some or all of module therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional module in each embodiment of the present invention can be integrated in a processing module, can also
That modules are individually physically present, can also two or more modules be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.
If the integrated module is realized in the form of software function module and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the present invention
Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (English full name：Read-Only
Memory, English abbreviation：ROM), random access memory (English full name：Random Access Memory, English abbreviation：
RAM), magnetic disc or CD etc. are various can be with the medium of store program codes.
Technical scheme provided by the present invention is described in detail above, specific case used herein is to this hair
Bright principle and embodiment is set forth, the explanation of above example be only intended to help the method for understanding the present invention and its
Core concept；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, in embodiment and application
There will be changes in scope, in summary, this specification content should not be construed as limiting the invention.
Claims (28)
- A kind of 1. method of unlicensed spectrum channel occupancy, it is characterised in that methods described includes：Network side equipment generates the first control information, and first control information is used to indicate that the channel at least one COT accounts for Use parameter；First control information is sent at least one terminal device by network side equipment, so that at least one terminal device root According to first control information, communicated with the network side equipment at least one COT.
- 2. according to the method for claim 1, it is characterised in that the channel occupancy parameter comprises at least one of following item：The first COT, the frequency domain parameter that transmission signal uses in the first COT at least one COT, described first Time domain unit structure or the first transmission triggering information in COT.
- 3. according to the method for claim 2, it is characterised in that under first control information is out of described first COT Row transmission initial time is sent.
- 4. according to the method in claim 2 or 3, it is characterised in that the first transmission triggering information is used for：In the net In the first COT of network side apparatus triggering, the terminal device is less than the LBT competitive channels of first threshold using duration.
- 5. according to any described methods of claim 1-4, it is characterised in that first control information passes through common control channel Order or the descending control signaling of terminal device dedicated control signaling or authorization channel are sent.
- A kind of 6. method of unlicensed spectrum channel occupancy, it is characterised in that methods described includes：Terminal device receives the first control information that network side equipment is sent, and first control information is at least one for indicating Channel occupancy parameter in COT；The terminal device is carried out according to first control information at least one COT with the network side equipment Communication.
- 7. according to the method for claim 6, it is characterised in that first control information comprises at least one of following item：The first COT, the frequency domain parameter that transmission signal uses in the first COT at least one COT, described Time domain unit structure or the first transmission triggering information in one COT.
- 8. according to the method for claim 7, it is characterised in that under first control information is out of described first COT Row transmission initial time is sent.
- 9. the method according to claim 7 or 8, it is characterised in that the first transmission triggering information is used for：In the net In the first COT of network side apparatus triggering, trigger the terminal device and use LBT competition letter of the duration less than first threshold Road.
- 10. according to the method for claim 9, it is characterised in that methods described also includes：The terminal device is higher than the LBT competitive channels of Second Threshold using duration；Duration is related to the random back duration during terminal device monitor channel higher than the LBT of Second Threshold length.
- 11. according to any described methods of claim 7-10, it is characterised in that methods described also includes：Descending time domain portion is not present in time domain unit structure in the 2nd COT at least one COT for transmission signal Timesharing, or it is not used to for the descending domain portion in the time domain unit structure of transmission signal in the first COT During two transmission triggering information, the terminal device uses the channel or another channel at least one 3rd COT, will be up Signal is sent to the network side equipment, so that another terminal device competes the letter using LBT of the duration less than first threshold Road or another channel, and carry out uplink at least one 3rd COT.
- 12. according to the method for claim 11, it is characterised in that the upward signal carries the second transmission triggering letter Breath, the second transmission triggering information are used to notify the network side equipment and/or another terminal device：By described at least The original transmission moment conduct of the terminal device of first progress uplink in each COT in one the 3rd COT The uplink triggering moment.
- 13. the method according to claim 11 or 12, it is characterised in that methods described also includes：The terminal device connects The second control information that the network side equipment is sent is received, the second control information instruction another terminal device triggering is at least Channel occupancy parameter in one the 4th COT；The channel occupancy at least one 4th COT that the terminal device indicates according to second control information is joined Number, communicated at least one 4th COT of second control information instruction with the network side equipment.
- 14. according to the method described in claim 7 and 13, it is characterised in that first control information and second control Information is made by common control channel or the descending control signaling of terminal device dedicated control signaling or authorization channel is sent.
- 15. a kind of network side equipment, it is characterised in that the network side equipment includes：Processing module, for generating the first control information, first control information is used to indicate the channel at least one COT Take parameter；Transceiver module, for the first control information to be sent at least one terminal device, so that at least one terminal is set For according to first control information, communicated with the network side equipment at least one COT.
- 16. network side equipment according to claim 15, it is characterised in that the channel occupancy parameter comprises at least following One of：The first COT, the frequency domain parameter that transmission signal uses in the first COT at least one COT, described first Time domain unit structure or the first transmission triggering information in COT.
- 17. network side equipment according to claim 16, it is characterised in that first control information is from described first Downlink transfer initial time in COT is sent.
- 18. the network side equipment according to claim 16 or 17, it is characterised in that the first transmission triggering information is used In：In the first COT of network side equipment triggering, the terminal device is less than the LBT of first threshold using duration Competitive channel.
- 19. according to any described network side equipments of claim 15-18, it is characterised in that first control information passes through Common control channel is made or the descending control signaling of terminal device dedicated control signaling or authorization channel is sent.
- 20. a kind of terminal device, it is characterised in that the terminal device includes：Transceiver module, for receiving the first control information of network side equipment transmission, first control information is used to indicate extremely Channel occupancy parameter in a few COT；Processing module, for first control information received according to the transceiver module, existed using the transceiver module Communicated at least one COT with the network side equipment.
- 21. terminal device according to claim 20, it is characterised in that first control information comprises at least following item One of：The first COT, the frequency domain parameter that transmission signal uses in the first COT at least one COT, described Time domain unit structure or the first transmission triggering information in one COT.
- 22. terminal device according to claim 21, it is characterised in that first control information is from the first COT Interior downlink transfer initial time is sent.
- 23. the terminal device according to claim 21 or 22, it is characterised in that the first transmission triggering information is used for： In the first COT of network side equipment triggering, the LBT that the terminal device is less than first threshold using duration is triggered Competitive channel.
- 24. terminal device according to claim 23, it is characterised in that the processing module is additionally operable to：It is higher than the LBT competitive channels of Second Threshold using duration；Duration is related to the random back duration during terminal device monitor channel higher than the LBT of Second Threshold length.
- 25. according to any described terminal devices of claim 21-24, it is characterised in that the processing module is additionally operable to：Descending time domain portion is not present in time domain unit structure in the 2nd COT at least one COT for transmission signal Timesharing, or it is not used to for the descending domain portion in the time domain unit structure of transmission signal in the first COT During two transmission triggering information, the channel or another channel are used at least one 3rd COT, will using the transceiver module Upward signal is sent to the network side equipment, so that another terminal device uses LBT competition institute of the duration less than first threshold Channel or another channel are stated, and uplink is carried out at least one 3rd COT.
- 26. terminal device according to claim 25, it is characterised in that the upward signal carries second transmission and touched Photos and sending messages, the second transmission triggering information are used to notify the network side equipment and/or another terminal device：By described in The original transmission moment of the terminal device of first progress uplink in each COT at least one 3rd COT As the uplink triggering moment.
- 27. the terminal device according to claim 25 or 26, it is characterised in that the processing module is additionally operable to：The second control information that the network side equipment sends is received using the transceiver module, described in the instruction of the second control information Channel occupancy parameter at least one 4th COT of another terminal device triggering；The channel at least one 4th COT that second control information received according to the transceiver module indicates Take parameter, using the transceiver module at least one 4th COT that second control information indicates with it is described Network side equipment is communicated.
- 28. according to the terminal device described in claim 21 and 27, it is characterised in that first control information and described second Control information is made by common control channel or the descending control signaling of terminal device dedicated control signaling or authorization channel is sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/099692 WO2018059179A1 (en) | 2016-09-30 | 2017-08-30 | Unlicensed spectrum channel occupation method and device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016108776166 | 2016-09-30 | ||
| CN201610877616 | 2016-09-30 |
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| CN107889114A true CN107889114A (en) | 2018-04-06 |
| CN107889114B CN107889114B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710313512.7A Active CN107889114B (en) | 2016-09-30 | 2017-05-05 | Method and equipment for occupying unlicensed spectrum channels |
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