CN104717686B - A kind of channel detection method and network element device of unauthorized frequency range - Google Patents
A kind of channel detection method and network element device of unauthorized frequency range Download PDFInfo
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Abstract
The embodiment of the invention discloses the channel detection methods and network element device of a kind of unauthorized frequency range to realize the fair co-existence between the LAA cell of different operators for reducing detection collision.Present invention method includes：Whether the channel that network element device detects unauthorized frequency range within the destination channel free time assessment CCA detection period is idle, the target CCA detection period is contained in CCA detection time window, the CCA detection time window includes at least N number of CCA and detects the period, and at least two different operators detect the period using CCA different in N number of CCA detection period；When detecting channel idle, the network element device, which is based on the idle channel, to carry out data transmission.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to the channel detection method and network element of a kind of unauthorized frequency range are set
It is standby.
Background technique
With the sharp increase of message volume, third generation cooperative partner program (the 3rd Generation
Partnership Project, abbreviation 3GPP) authorized spectrum band seems less and less adequate to provide higher network capacity, in turn,
How unauthorized frequency range is used with the help of authorized spectrum band, become current 3GPP discusses one of project, unauthorized frequency
Section such as 2.4GHz and 5GHz frequency range.Presently mainly WiFi, bluetooth, radar, the systems such as medical treatment are using.It is designed for authorized spectrum band
Access technology, frequency range efficiency and user experience are optimized such as long term evolution (Long Term Evolution, abbreviation LTE)
It is required that it is very high, be not suitable for using in unauthorized frequency range, and carrier wave polymerize (Carrier Aggregation, abbreviation CA) function
Can make LTE technology being deployed in unauthorized frequency range becomes possible.Therefore, 3GPP proposes LTE auxiliary access technology (LTE
Assisted Access, abbreviation LAA) concept, come by the help of LTE authorized spectrum band using unauthorized frequency range.Wherein, not
Authorized spectrum band can be there are two types of working method, and one is supplements downlink (Supplemental Downlink, abbreviation SDL), are exactly
Frequency range is only used in downlink transfer, by carrier aggregation technology；Another kind is time division duplex (Time Division Duplex, letter
Claim TDD) mode, it can be used for downstream transmission, (Dual Connectivity, abbreviation DC) can be led to by doubly-linked and used,
It can independently use.
The existing access technology used in unauthorized frequency range, such as WiFi have weaker anti-interference ability.In order to keep away
Exempt to interfere, WiFi system devises many interference and avoids rule, such as Carrier Sense Multiple Access/collision detection method (Carrier
Sense Multiple Access/Collision Detection, abbreviation CSMA/CA), the basic principle is that the access of WiFi
Either whether terminal has AP around first Monitor detection before sending signaling or data to point (Access Point, abbreviation AP)
Or terminal is in transmission/reception signaling or data, if so, then continue to monitor, until listen to without until.If not provided,
Then one random number of generation is as back off time, in this back off time, if not detected signaling or data transmission, that
After back off time terminates, AP or terminal can start to send signaling or data.As shown in Figure 1.
And LTE network is due to there is good orthogonality to ensure that interference level, so the downstream transmission of base station and terminal
Without whether thering is base station or terminal being transmitted around considering.If LTE does not also consider week when using in unauthorized frequency range
Whether have other equipment using unauthorized frequency range, then great interference will be brought to WiFi equipment if enclosing.Because as long as LTE has
Business is just transmitted, without any monitoring rule, then WiFi equipment cannot just be transmitted when LTE has business transmission, it can only
Until LTE business is transmitted, it can just detect channel clear, just can be carried out transmission.
So LTE, when using unauthorized frequency range, one of most important key point is to ensure that LAA can be fair close friend's
On the basis of and existing access technology (such as WiFi) coexist, and then propose listem-before-talk (Listen Before Talk, letter
Claim LBT) mechanism avoid collision.
The LBT mechanism of equipment (Frame based equipment, abbreviation FBE) based on frame is as shown in Fig. 2, wherein believe
Road free time assessment (Clear Channel Assessment, abbreviation CCA) detection time is repeated cyclically appearance, detects in CCA
If the time detects channel idle, busy channel.After Channel holding time, there is idle (idle) time,
Idle time, sending point do not send signal and data, seize channel convenient for other sending points.After the idle time, and occur
CCA detection time is not take up channel if detecting channel busy, examines again when the CCA detection time in next period occurs
Survey channel.
If the CCA detection time of the LBT between operator based on frame structure cannot be staggered, that is to say, that A and B operator
If the LBT time it is identical, as shown in Figure 3.The LAA cell of A operator and the LAA cell of B operator all detect channel sky
Spare time can thus generate collision, wherein the LAA of A operator then simultaneously data occur for the two after the LBT time terminates
Base station, and the terminal in the base station range are respectively included in cell and the LAA cell of B operator.
But if the CCA time of operator is staggered, and is repeated cyclically appearance, then it is easy so that A is runed in the case of certain
The LAA cell of quotient busy channel always, and the LAA cell of B operator occupies always less than channel, to bring time delay and injustice
It is flat.As shown in figure 4, channel idle then busy channel is detected because the cell of operator 1 detects channel in front, and
Channel always detects below in operator 2, and channel has been occupied by operator 1 at this time, thus 2 long-time of operator seize less than
Channel is brought compared with long time delay and unfairness.
Summary of the invention
In view of the foregoing drawbacks, the embodiment of the invention provides a kind of channel detection methods of unauthorized frequency range, for reducing
Detection collision, realizes the fair co-existence between the LAA cell of different operators, reduces the waiting time delay of base station or terminal, improves
The data transmission efficiency of base station or terminal.
First aspect present invention provides a kind of channel detection method of unauthorized frequency range, it may include：
Whether the channel that network element device detects unauthorized frequency range within the destination channel free time assessment CCA detection period is idle,
The above-mentioned target CCA detection period is contained in CCA detection time window, and above-mentioned CCA detection time window is included in the frame knot of FBE
In the CCA detection cycle of structure, above-mentioned CCA detection cycle includes above-mentioned CCA detection time window, and is examined in each above-mentioned CCA
It surveys in time window and includes at least N number of CCA detection period, be at least two different operators in above-mentioned N number of CCA detection period
The different CCA detection periods is configured, and detects the period using different CCA in continuous N CCA detection time window, wherein on
Stating N, M is the positive integer more than or equal to 2；
When detecting channel idle, said network element equipment is based on above-mentioned idle channel and carries out data transmission.
Further, when said network element equipment is base station, said network element equipment is in destination channel free time assessment CCA detection
Include before whether the channel of detection unauthorized frequency range is idle in period：When detecting that data need to transmit, above-mentioned base station from
Above-mentioned CCA detection time window is retrieved as the target CCA detection period that operator belonging to above-mentioned base station is distributed, above-mentioned base station
The period is detected using different CCA in the above-mentioned CCA detection time window of continuous N by affiliated operator, and above-mentioned M is less than or waits
In above-mentioned N.
Further, when said network element equipment is base station, said network element equipment is in destination channel free time assessment CCA detection
Include before whether the channel of detection unauthorized frequency range is idle in period：When detecting that data need to transmit, above-mentioned base station from
Above-mentioned CCA detection time window selection target CCA detects the period, and above-mentioned base station is in the above-mentioned CCA detection time window of continuous N
Different CCA is selected to detect the period, above-mentioned M is less than or equal to above-mentioned N.
Further, when said network element equipment is terminal, said network element equipment is in destination channel free time assessment CCA detection
Include before whether the channel of detection unauthorized frequency range is idle in period：Above-mentioned terminal receives the first Channel Detection that base station is sent
Configuration information, above-mentioned first Channel Detection configuration information include at least CCA detection cycle and are operation belonging to above-mentioned terminal
The target CCA in above-mentioned CCA detection time window that quotient is distributed detects the period；It is above-mentioned when detecting that data need to transmit
What terminal was retrieved as that operator belonging to above-mentioned terminal distributed from above-mentioned first Channel Detection configuration information examines in above-mentioned CCA
The above-mentioned target CCA for surveying time window detects the period, and operator belonging to above-mentioned terminal is in the above-mentioned CCA detection time of continuous N
The period is detected using different CCA in window, above-mentioned M is less than or equal to above-mentioned N.
Further, when said network element equipment is terminal, said network element equipment is in destination channel free time assessment CCA detection
Include before whether the channel of detection unauthorized frequency range is idle in period：Above-mentioned terminal receives the second channel detection that base station is sent
Configuration information, above-mentioned second channel detection configuration information include at least CCA detection cycle, the CCA in above-mentioned CCA detection cycle
The CCA that detection time window, above-mentioned CCA detection time window include detects the period；It is above-mentioned when detecting that data need to transmit
Terminal detects the period from above-mentioned CCA detection time window selection target CCA, and above-mentioned terminal is in the above-mentioned CCA detection time of continuous N
Different CCA is selected to detect the period in window, above-mentioned M is less than or equal to above-mentioned N.
Second aspect of the present invention provides a kind of configuration method, it may include：
Channel idle is set in the CCA detection cycle based on FBE frame structure and assesses CCA detection time window, and every
N number of CCA is included at least in a above-mentioned CCA detection time window detects the period；
In above-mentioned N number of CCA detection period, different CCA is configured at least two different operators and detects the period, and even
The period is detected using different CCA in continuous M CCA detection time window, wherein above-mentioned N, M are just whole more than or equal to 2
Number.
Further, above-mentioned is that at least two different operators configure the different CCA detection periods and include：It is at least two
Different operators configure the different CCA detection periods, and any one above-mentioned operator is in the above-mentioned CCA detection time of continuous N
The CCA detection period configured in window is not identical, and above-mentioned M is less than or equal to above-mentioned N.
Third aspect present invention provides a kind of network element device, it may include：
First detection module, for detecting the channel of unauthorized frequency range within the destination channel free time assessment CCA detection period
Whether idle, the above-mentioned target CCA detection period is contained in CCA detection time window, and above-mentioned CCA detection time window is included in
In the CCA detection cycle of the frame structure of FBE, above-mentioned CCA detection cycle includes above-mentioned CCA detection time window, and each
N number of CCA is included at least in above-mentioned CCA detection time window and detects the period, is at least two in above-mentioned N number of CCA detection period
Different operators configure the different CCA detection periods, and when in continuous N CCA detection time window using different CCA detections
Section, wherein above-mentioned N, M are the positive integer more than or equal to 2；
First transmission module, for being carried out based on above-mentioned idle channel when above-mentioned detection module detects channel idle
Data transmission.
Further, when said network element equipment is base station, said network element equipment further includes：First obtains module, is used for
When detecting that data need to transmit, operator belonging to above-mentioned base station is retrieved as from above-mentioned CCA detection time window and is distributed
Target CCA detect the period, operator belonging to above-mentioned base station uses difference in the above-mentioned CCA detection time window of continuous N
CCA detect the period, above-mentioned M be less than or equal to above-mentioned N.
Further, when said network element equipment is base station, said network element equipment further includes：First choice module, is used for
When detecting that data need to transmit, the period is detected from above-mentioned CCA detection time window selection target CCA, above-mentioned base station is even
Different CCA is selected to detect the period in continuous M above-mentioned CCA detection time windows, above-mentioned M is less than or equal to above-mentioned N.
Further, when said network element equipment is terminal, said network element equipment further includes：First receiving module, is used for
The first Channel Detection configuration information that base station is sent is received, above-mentioned first Channel Detection configuration information includes at least CCA detection week
The target CCA in above-mentioned CCA detection time window that phase and the operator belonging to above-mentioned terminal distribute detects the period；
Second obtains module, for being retrieved as from above-mentioned first Channel Detection configuration information when detecting that data need to transmit
It states the above-mentioned target CCA in above-mentioned CCA detection time window that operator belonging to terminal is distributed and detects period, above-mentioned terminal
The period is detected using different CCA in the above-mentioned CCA detection time window of continuous N by affiliated operator, and above-mentioned M is less than or waits
In above-mentioned N.
Further, when said network element equipment is terminal, said network element equipment further includes：Second receiving module, is used for
It receives the second channel that base station is sent and detects configuration information, above-mentioned second channel detection configuration information includes at least CCA detection week
The CCA that phase, the CCA detection time window in above-mentioned CCA detection cycle, above-mentioned CCA detection time window include detects the period；
Third selecting module, for being detected from above-mentioned CCA detection time window selection target CCA when detecting that data need to transmit
Period, above-mentioned terminal select different CCA to detect the period in continuous N above-mentioned CCA detection time window, above-mentioned M be less than or
Equal to above-mentioned N.
As can be seen that on the one hand, the embodiment of the invention provides a kind of CCA detection time sections to belong to dynamic LBT mechanism,
It wherein, include N number of CCA detection period in CCA detection time window, different operators can be used in N number of CCA detection period
Different CCA detect the periods, and then the network element device under operator's LAA cell then can detect the period based on target CCA
It whether idle detects channel, is staggered, reduces between the LAA cell of different operators or the LAA of operator from detection time
Cell collides the detection between WIFI, and the target CCA that each operator uses in CCA detection time window detects the period
It is dynamic, that is to say, that the different target CCA detection periods can be used in each CCA detection time window, it is ensured that work
Network element device under the LAA cell of different operators has fair Channel Detection probability, realizes that the LAA of different operators is small
Fair co-existence between area.
On the other hand the embodiment of the invention provides the LBT mechanism that a kind of CCA detection cycle can be changed, wherein operator LAA
Whether the network element device under cell first uses the first CCA detection cycle idle to detect the channel under unauthorized frequency range, when a certain
When the detection number that channel idle is not detected in network element device meets preset threshold, which can be examined the first CCA
The survey period changes the 2nd CCA detection cycle into, then detects the channel under unauthorized frequency range again using the 2nd CCA detection cycle again
It is whether idle, since the 2nd CCA detection cycle is less than the first CCA detection cycle, that is, the period by shortening Channel Detection,
To improve the number of Channel Detection, provide the detection probability of justice for network element device, realize different operators LAA cell it
Between fair co-existence, and can't detect the network element device of idle channel after by the replacement of CCA detection cycle, that is, can be
Be staggered in CCA detection time with the CCA detection time of other network element devices, reduce operator LAA cell between and operator LAA
Cell collides the detection of WIFI.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is csma/collision detection method schematic diagram that the prior art provides；
Fig. 2 is the FBE frame structure that the prior art provides；
Fig. 3 is that the data after the LBT detection that the prior art provides transmit impact applications schematic diagram of a scenario；
Fig. 4 is the application schematic diagram of the channel detection method for the operator that the prior art provides；
Fig. 5 a is the flow diagram of the channel detection method of unauthorized frequency range provided in an embodiment of the present invention；
Fig. 5 b is the flow diagram of configuration method provided in an embodiment of the present invention；
Fig. 6 a is CCA detection time window schematic diagram provided in an embodiment of the present invention；
Fig. 6 b is that CCA provided in an embodiment of the present invention detects period distribution schematic diagram；
Fig. 7 be another embodiment of the present invention provides unauthorized frequency range channel detection method flow diagram；
Fig. 8 a is the application schematic diagram of channel detection method provided in an embodiment of the present invention；
Fig. 8 b is the Channel Detection application schematic diagram of the LBT mechanism provided in an embodiment of the present invention based on FBE；
Fig. 9 is the structural schematic diagram of network element device provided in an embodiment of the present invention；
Figure 10 be another embodiment of the present invention provides network element device structural schematic diagram.
Specific embodiment
The embodiment of the invention provides a kind of channel detection methods of unauthorized frequency range, reduce detection collision, realize different
Fair co-existence between the LAA cell of operator reduces the waiting time delay of base station or terminal, and the data for improving base station or terminal pass
Defeated efficiency.The embodiment of the invention also provides corresponding network element devices.
Below in conjunction with the attached drawing of the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
The present invention can be reached for realizing the Channel Detection in unauthorized frequency range, operator using the unauthorized resource of frequency range
The purpose shunted to network capacity, but need to defer to different regions and different frequency ranges wants the regulation of unauthorized frequency range
Ask, these laws and regulations requirements be usually be the protection public systems such as radar, and guarantee that multisystem does not cause from each other as far as possible
Adverse effect, fair co-existence and formulate, including transmission power limitation, band outward leakage index, indoor and outdoor using limitation, Yi Jiyi
There are also some additional coexistence policies etc. for a little regions.
For example, the unauthorized frequency range for the 5GHz that national governments open, it includes LBT, transmission power control that specification, which coexists,
(Transmit Power Control, abbreviation TPC), dynamic frequency selection (Dynamic Frequency Selection, letter
Claim DFS) and channel occupancy bandwidth etc..Wherein, LBT is the coexistence policies between system, and the network element device under operator's LAA cell exists
LBT rule need to be deferred to when occupying unauthorized band communication, i.e. whether empty network element device first listens to channel before using channel
The channel in the unauthorized frequency range can be used in spare time if channel idle, but the time for occupying the channel is restricted.?
Occupy the channel time reach maximum limitation after, it is necessary to discharge the channel for a period of time.Unauthorized frequency is being occupied next time
Before channel in section, it is necessary to whether idle once again listen for channel.According to the current regulation of ETSI EN301 893, network element device
In use, needing to meet the LBT of the equipment (Frame Based Equipment, abbreviation FBE) based on frame in unauthorized frequency range
Mechanism requirement, or the LBT mechanism requirement of the equipment (Load Based Equipment, abbreviation LBE) based on load.
On the basis of the present invention mainly introduces the requirement of the LBT mechanism based on FBE, the Channel Detection of unauthorized frequency range is realized.
Based on above-mentioned introduction, the embodiment of the invention provides a kind of channel detection methods of unauthorized frequency range.Please refer to figure
5a, Fig. 5 a are the flow diagram of the channel detection method of unauthorized frequency range provided in an embodiment of the present invention；As shown in Figure 5 a, one
The channel detection method of kind unauthorized frequency range, it may include：
501, whether the channel of network element device detection unauthorized frequency range within the destination channel free time assessment CCA detection period is empty
Spare time, above-mentioned target CCA detection period are contained in CCA detection time window, and above-mentioned CCA detection time window includes at least N number of
CCA detects the period, and at least two different operators detect the period using CCA different in above-mentioned N number of CCA detection period；
Said network element equipment works under operator's LAA cell, can be base station or terminal, wherein terminal is covered in base station
Within the scope of lid.
Wherein, CCA detection time window specifically includes in the CCA detection cycle of the frame structure of FBE, and CCA detection week
Phase further includes CCA detection time window, includes N number of CCA detection period in CCA detection time window, at one
In CCA detection cycle, an operator only uses the detection period progress Channel Detection of a CCA in CCA detection time window,
And ensure that at least two different operators use the different CCA detection periods in a CCA detection time window, wherein
Above-mentioned N is the positive integer more than or equal to 2.
It is understood that in a CCA detection cycle, including CCA detection window and Channel holding time and sky
Not busy (idle) time.Therefore, there are also Channel holding times and idle (idle) time behind CCA detection window.
It should be noted that if operator uses second CCA detection period, if that detecting channel sky
Spare time, since third CCA detection the period can transmit data, start busy channel.
502, when detecting channel idle, said network element equipment is based on above-mentioned idle channel and carries out data transmission.
Above-mentioned data are transmitted in a frame format, specifically include signaling or data payload.
The embodiment of the present invention belongs to dynamic LBT mechanism by providing a kind of CCA detection time section, wherein when CCA is detected
Between include N number of CCA detection period in window, the different CCA inspections in N number of CCA detection period can be used in different operators
It surveys the period, and then whether the network element device under operator's LAA cell then can empty based on target CCA detection period detection channel
Spare time is staggered from detection time, reduces between the LAA cell of different operators or the LAA cell of operator is between WIFI
Detection collision, and each operator uses in CCA detection time window the target CCA detection period be it is dynamic, also
It is to say that the different target CCA detection periods can be used in each CCA detection time window, it is ensured that work is in different operators
Network element device under LAA cell has fair Channel Detection probability, realizes that the justice between the LAA cell of different operators is total
It deposits.
It is understood that in the above-described embodiments, operator target CCA used in CCA detection time window inspection
Surveying the period can be pre-configured with, and in turn, as shown in Figure 5 b, another embodiment of the present invention additionally provides a kind of configuration method, can wrap
It includes：
511, N number of CCA detection period is configured in channel idle assessment CCA detection time window；
Wherein, above-mentioned N is the positive integer more than or equal to 2.
512, in above-mentioned N number of CCA detection period, different CCA is configured at least two different operators and detects the period.
Configuration method provided by Fig. 5 b can be configured taking human as according to configuration strategy, which is specifically in base
CCA detection time window is set in the CCA detection cycle of FBE frame structure, and configures N in each CCA detection time window
A CCA detects the period, then configures different CCA in N number of CCA detection period for different operators and detects the period, wherein
There are two the CCA of different operators detection period differences at least in a CCA detection time window, so that operator
It is staggered between when detecting.
It further, is at least two in above-mentioned N number of CCA detection period when to operator's configuration CCA detection period
A different operators configure the different CCA detection periods, and any one above-mentioned operator is in continuous N above-mentioned CCA detection
Between CCA detection period for being configured in window it is not identical.The period is detected based on configuration strategy configuration CCA, not will cause some
The CCA detection period of operator always in preceding, constant testing to channel idle, busy channel always, and the CCA of other operator
The period is detected always rear, constant testing is unable to always busy channel less than channel idle.
For example, as shown in Figure 6 a, Fig. 6 a is the schematic diagram of CCA detection time window provided in an embodiment of the present invention；
In Fig. 6 a, by taking 5 CCA detection cycles as an example, respectively A1, A2, A3, A4 and A5 include one in each CCA detection cycle
CCA detection time window, therefore, 5 CCA detection cycles one share 5 CCA detection time windows, respectively B1, B2, B3, B4
And B5, it is respectively 1,2,3,4 and 5 according to its sequence of positions that interior each CCA detection time window, which includes that 5 CCA detect the periods,.
When needing to distribute target CCA detection in continuous 3 CCA detection time window for operator 1, operator 2 and operator 3 now
Section, wherein the CCA detection period of operator 1 is in CCA detection time window 1, CCA detection time window 2 and CCA detection time
The sequence of positions of window 3 is 1,2 and 3, in CCA detection time window 4, CCA detection time window 5 and CCA detection time window 6
The sequence of positions of (not marking in Fig. 6 a) recalculates, and respectively 1,2 and 3, and so on；Equally, the CCA inspection of operator 2
The survey period is 2,3 Hes in the sequence of positions of CCA detection time window 1, CCA detection time window 2 and CCA detection time window 3
1, in the position of CCA detection time window 4, CCA detection time window 5 and CCA detection time window 6 (not marked in Fig. 6 a)
Sequence recalculates, and respectively 2,3 and 1, and so on；The CCA detection period of operator 3 is in CCA detection time window 1, CCA
The sequence of positions of detection time window 2 and CCA detection time window 3 is 3,1 and 2, is detected in CCA detection time window 4, CCA
The sequence of positions of time window 5 and CCA detection time window 6 (not marking in Fig. 6 a) recalculates, and respectively 3,1 and 2, according to
It is secondary to analogize.
Wherein, the CCA detection period with operator 1, operator 2 and the operator 3 postponed is as shown in Figure 6 b, wherein every
The sequencing of the CCA detection period of a operator is all changing, and the CCA detection period that not will cause some operator exists always
Before, and constant testing is to channel idle, can busy channel always, and the CCA of the other operator detection period is always rearward, always
The case where can't detect channel idle, being unable to busy channel always generation.
It should be noted that the present invention can also be configured using other configurations strategy, no except above-mentioned configuration strategy
Which kind of configuration strategy is managed, as long as realizing technical effect of the invention, belongs to protection scope of the present invention.
It should also be noted that, be related to relevant information in above-mentioned configuration strategy, including CCA detection cycle, examine in the CCA
The CCA for including in CCA detection time window, each CCA detection time window in the survey period detects the period and is operator
The target CCA in CCA detection time window of distribution detects the period, these information can be referred to as Channel Detection with confidence
Breath.Wherein it is possible to Channel Detection configuration information is embedded in base station ic with a kind of configuration strategy or protocol mode, in turn
It base station, then can be according to the target CCA detection period configured in above-mentioned configuration strategy come complete when detecting that data need to transmit
At Channel Detection, and when monitoring channel idle, carried out data transmission based on the channel detected.
It is, of course, also possible to the Channel Detection configuration information being embedded in configuration strategy or protocol mode in base station ic
It carries out rewriting operation, for example, with the increase of operator, needs to configure CCA again for operator when detecting the period, then it can be into
Row rewriting operation.
Channel Detection configuration information is embedded in base station ic with configuration strategy or protocol mode due to above-mentioned, because
This, base station can send configuration information to the terminal in its coverage area, so that terminal is when carrying out data transmission, using matching
The target CCA detection period set carries out Channel Detection.
Therefore, on the basis of above-mentioned configuration method, in an enforceable mode of the invention, said network element equipment is specific
For base station, then whether the channel for detecting unauthorized frequency range within the destination channel free time assessment CCA detection period in network element device is empty
It further include step before spare time：
When detecting that data need to transmit, above-mentioned base station is retrieved as above-mentioned base station institute from above-mentioned CCA detection time window
The target CCA that the operator of category is distributed detects the period, and operator belonging to above-mentioned base station is in continuous N above-mentioned CCA detection
Between detect the period using different CCA in window, above-mentioned M is less than or equal to above-mentioned N.
As can be seen that can be adopted as what its corresponding operator was configured when base station detects that data need to transmit
Whether target CCA detection period detection channel is idle, due to CCA of each operator in continuous N CCA detection time window
The detection period is different from, so that the CCA of some base station will not be caused to detect the period always in preceding, constant testing to channel sky
Spare time, busy channel always, and the CCA of the base station or terminal under the other operator detection period always rear, constant testing less than
Channel idle is unable to always busy channel.
The case where network element device is base station in corresponding above-described embodiment, it is another in the present invention when network element device is terminal
In a enforceable mode, said network element equipment detects unauthorized frequency range within the destination channel free time assessment CCA detection period
It include step before whether channel is idle：
S1, above-mentioned terminal receive the first Channel Detection configuration information that base station is sent, and above-mentioned first Channel Detection matches confidence
Breath include at least that CCA detection cycle and the operator belonging to above-mentioned base station distribute in above-mentioned CCA detection time window
Target CCA detect the period；
S2, when detecting that data need to transmit, above-mentioned terminal is retrieved as from above-mentioned first Channel Detection configuration information
The above-mentioned target CCA in above-mentioned CCA detection time window that operator belonging to above-mentioned terminal is distributed detects period, above-mentioned end
The period is detected using different CCA in continuous N above-mentioned CCA detection time window by operator belonging to end, above-mentioned M be less than or
Equal to above-mentioned N.
It is understood that the first Channel Detection configuration information that base station is sent is received for terminal, from the first letter
Road, which detects, obtains the target CCA detection period in configuration information, when detecting that data need to transmit, target CCA is utilized to detect
Whether the period detects channel idle.So as to under other operators base station or terminal be staggered detection time, reduce operation
Detection collision between quotient's LAA cell between operator's LAA cell and WIFI.
It is above-mentioned to describe the channel in unauthorized frequency range from the angle for configuring the target CCA detection period in advance for operator
Network element device is further described by detection method from the angle of CCA detection time window selection CCA detection period below
Channel detection method in unauthorized frequency range.
It, can will be in above-mentioned Channel Detection configuration information it is appreciated that in order to provide the user with better user experience
CCA detection cycle includes in the CCA detection time window and each CCA detection time window in the CCA detection cycle
CCA detect the period, be embedded in base station ic with a kind of configuration strategy or protocol mode, existed in advance for operator
CCA detection time window configures target CCA and detects the period, therefore, when base station needs to transmit data, needs first to detect from CCA
Whether selection target CCA detects the period in time window, then idle based on target CCA detection period detection channel.
Channel Detection configuration information is embedded in base station ic with configuration strategy or protocol mode due to above-mentioned, because
This, base station can send configuration information to the terminal in its coverage area, so that terminal is when carrying out data transmission, from CCA
The target CCA detection period is selected in detection time window, it is whether idle based on target CCA detection period detection channel.
Certainly, in order to realize CCA detection period not phase of each operator in continuous N CCA detection time window
Together, so that the CCA of some operator will not be caused to detect the period always in preceding, constant testing to channel idle, letter is occupied always
Road, and the CCA of the other operator detection period always rear, constant testing is unable to always busy channel less than channel idle.Base
It stands or terminal is when unrestricted choice target CCA detects the period from CCA detection time window, be referred to above-mentioned configuration strategy
(details are not described herein), i.e., each base station or terminal select different CCA to examine respectively in continuous N CCA detection time window
Survey the period.
Therefore, it in another enforceable mode of the invention, if said network element equipment is specially base station, is set in network element
It further include step before whether the standby channel for detecting unauthorized frequency range within the destination channel free time assessment CCA detection period is idle：
When detecting that data need to transmit, when above-mentioned base station is detected from above-mentioned CCA detection time window selection target CCA
Section, above-mentioned base station select different CCA to detect the period in the above-mentioned CCA detection time window of continuous N, and above-mentioned M is less than or waits
In above-mentioned N.
Correspondingly, when said network element equipment is terminal, in other enforceable modes of the invention, in said network element
It include step before whether the channel of equipment detection unauthorized frequency range within the destination channel free time assessment CCA detection period is idle：
S3, above-mentioned terminal receive the second channel that base station is sent and detect configuration information, and confidence is matched in above-mentioned second channel detection
Breath includes at least CCA detection cycle, the CCA detection time window in above-mentioned CCA detection cycle, above-mentioned CCA detection time window
The CCA detection period that mouth includes；
S4, when detecting that data need to transmit, above-mentioned terminal is examined from above-mentioned CCA detection time window selection target CCA
It surveys the period, above-mentioned terminal selects different CCA to detect the period in the above-mentioned CCA detection time window of continuous N, and above-mentioned M is less than
Or it is equal to above-mentioned N.
It is understood that receiving the second channel that base station is sent for terminal and detecting configuration information, according to second
Channel Detection configuration information, selection target CCA detects the period from CCA detection time window.
Referring to Fig. 7, another embodiment of the present invention additionally provides a kind of channel detection method of unauthorized frequency range, can wrap
It includes：
701, network element device detection unauthorized frequency within the CCA detection period of the first channel idle assessment CCA detection cycle
Whether the channel of section is idle；
Wherein, said network element equipment can be base station or terminal,
702, when channel idle is not detected, said network element equipment determines that the detection number that channel idle is not detected is
It is no to meet preset threshold；
703, when above-mentioned detection number meets above-mentioned preset threshold, above-mentioned first CCA is detected week by said network element equipment
Phase is changed to the 2nd CCA detection cycle, and detects above-mentioned unauthorized within the CCA of the above-mentioned 2nd CCA detection cycle detection period
Whether the channel of frequency range is idle, and above-mentioned 2nd CCA detection cycle is less than above-mentioned first CCA detection cycle；
704, when detecting channel idle, said network element equipment is based on above-mentioned idle channel and carries out data transmission.
A kind of LBT mechanism that CCA detection cycle is variable is provided in the embodiment of the present invention, wherein under operator's LAA cell
Network element device whether first use the first CCA detection cycle idle to detect the channel under unauthorized frequency range, when a certain network element is set
When the standby detection number that channel idle is not detected meets preset threshold, which can be by the first CCA detection cycle
It changes the 2nd CCA detection cycle into, whether empty then uses the 2nd CCA detection cycle to detect the channel under unauthorized frequency range again again
Spare time, since the 2nd CCA detection cycle is less than the first CCA detection cycle, that is, the period by shortening Channel Detection, to mention
The number of high channel detection, fair detection probability is provided for network element device, realizes the public affairs between the LAA cell of different operators
It is flat to coexist, and can't detect the network element device of idle channel after by the replacement of CCA detection cycle, that is, can detect in CCA
Be staggered on time with the CCA detection time of other network element devices, reduce operator LAA cell between and operator LAA cell pair
The detection of WIFI is collided.
Optionally, above-mentioned preset threshold can be the positive integer more than or equal to 2, be specifically dependent upon portfolio or business pair
The susceptibility of time delay, for example portfolio is big or business is strong to delay sensitive, then preset threshold is smaller；Conversely, preset threshold can
With larger.Preset threshold can be configured using semi-static mode.
If preset threshold is 2, that is to say, that as soon as can't detect idle channel using CCA detection cycle continuous 2 times,
It is replaced with the 2nd CCA detection cycle, to shorten detection cycle.
Optionally, above-mentioned first CCA detection cycle can be the multiple of the 2nd CCA detection cycle, such as 2 times or 2 times
More than.
It is understood that equally letter can be continuously not detected in the first CCA detection cycle, the first CCA detection cycle
The Channel Detections configuration information such as the detection number of road free time and the 2nd CCA detection cycle is with a kind of configuration strategy or protocol mode
It is embedded in base station ic.Wherein, the detection number that channel idle is continuously not detected of the first CCA detection cycle is above-mentioned pre-
If threshold values.
Therefore, correspond to base station side, in some enforceable modes of the present invention, a kind of Channel Detection of unauthorized frequency range
Method may include：The letter of unauthorized frequency range is detected within the CCA detection period of the first channel idle assessment CCA detection cycle in base station
Whether road is idle；When channel idle is not detected, above-mentioned base station determines whether the detection number that channel idle is not detected is full
Sufficient preset threshold；When above-mentioned detection number meets above-mentioned preset threshold, above-mentioned first CCA detection cycle is replaced in above-mentioned base station
For the 2nd CCA detection cycle, and above-mentioned unauthorized frequency range is detected within the CCA of the above-mentioned 2nd CCA detection cycle detection period
Whether channel is idle, and above-mentioned 2nd CCA detection cycle is less than above-mentioned first CCA detection cycle；When detecting channel idle, on
Base station is stated to carry out data transmission based on above-mentioned idle channel.
For terminal side, need to obtain third Channel Detection configuration information, third Channel Detection configuration from base station
Information includes that the detection number and of channel idle is continuously not detected in above-mentioned first CCA detection cycle, the first CCA detection cycle
Two CCA detection cycles.Therefore, in other enforceable modes of the invention, in said network element equipment in the first channel idle
It includes step that whether the channel of detection unauthorized frequency range is idle in the CCA detection period of assessment CCA detection cycle before：Above-mentioned end
End receives the third Channel Detection configuration information that base station is sent.
For example, as shown in Figure 8 a, operator 1 uses CCA detection cycle TL(TL=10ms) CCA detection the period inspection
It whether idle surveys channel, detects channel idle, and send data for continuous 4 times.Operator 2 is in continuous N=3 TLIn detect
Channel busy, next by T since the 4th detection cycleLIt is replaced with TS(TS=2ms), in next 5th TSIn, this
The CCA detection period then detects channel idle in the time in the free time (idle) of operator 1 just, and sends data, and by TS
It is replaced with TL。
It is understood that above-mentioned third Channel Detection configuration information can also include the 2nd CCA detection cycle continuously not
The detection number for detecting channel idle, when the detection number that idle channel is not detected using the 2nd CCA detection cycle is met
The detection number of channel idle is continuously not detected in the 2nd CCA detection cycle provided in configuration information, then examines the 2nd CCA
Periodic transformation is surveyed into the first CCA detection cycle, alternatively, the 2nd CCA detection cycle can also be replaced with to smaller 3rd CCA inspection
Survey the period.
It should be noted that the limit that CCA detection cycle shortens is exactly the CCA detection being equal in CCA detection cycle in the period
Period.
When CCA detection cycle is equal to the CCA detection period, actually become the existing LBT machine based on LBE
System selects random number N=1, continues to test always, as long as detecting a channel idle, account for that is, when detecting channel busy
Use channel.
Wherein, shown in the following Fig. 8 b of LBT mechanism based on LBE：LBT mechanism based on LBE is no periodic, as long as there is number
According to needing to transmit, then CCA detection is triggered, if CCA detection is idle, horse transmitting data；If detecting channel busy, one is taken
A random number N, the value range of N are 1 to q, and the value range of q is 4 to 32.The case where q=16 is shown in Fig. 8 b, at this moment,
When detecting channel idle, channel maximum holding time is (13/32) * q=6.5ms.Then after 6.5ms, window is taken
(extended CCA) mechanism of competition, i.e., and the range of random value N, N are 1 to 16, if value is 8, then it represents that in the case where connecing
In the continuous CCA detection period come, each CCA detection period will detect channel, if detecting channel idle, N-1, if
Detect channel busy, then N is constant, when N is 0, sends signaling or data.
Therefore, the limit that CCA detection cycle shortens is to detect the period equal to CCA, has actually reformed into random number N=1
The LBT mechanism based on LBE.That is in the next CCA detection period, as long as once CCA detects the free time,
Horse transmitting data.
Referring to Fig. 9, Fig. 9 is a kind of structural schematic diagram of network element device provided in an embodiment of the present invention；As shown in figure 9,
The embodiment of the invention also provides a kind of network element devices, it may include：
First detection module 910, for detecting the letter of unauthorized frequency range within the destination channel free time assessment CCA detection period
Whether road is idle, and the above-mentioned target CCA detection period is contained in CCA detection time window, and above-mentioned CCA detection time window is at least
The period is detected including N number of CCA, when at least two different operators are detected using CCA different in above-mentioned N number of CCA detection period
Section；
First transmission module 920, for when above-mentioned detection module detects channel idle, based on above-mentioned idle channel into
The transmission of row data.
Wherein, above-mentioned N is the positive integer more than or equal to 2.Network element device in embodiments of the present invention can be base station
Or terminal.
As can be seen that in embodiments of the present invention, since first detection module 910 detects period detection by target CCA
Whether channel is idle, and when determining channel idle, the first transmission module 920 is based on the channel transmission data detected, due to CCA
It include N number of CCA detection period in detection time window, different operators can be used different in N number of CCA detection period
CCA detects the period, and then the network element device under operator's LAA cell then can detect channel based on the target CCA detection period
It is whether idle, it is staggered, reduces between the LAA cell of different operators or the LAA cell pair of operator from detection time
Detection collision between WIFI, and the target CCA detection period that each operator uses in CCA detection time window is dynamic
, that is to say, that the different target CCA detection periods can be used in each CCA detection time window, it is ensured that work is in difference
Network element device under the LAA cell of operator has fair Channel Detection probability, realizes between the LAA cell of different operators
Fair co-existence.
It is understood that in the above-described embodiments, operator target CCA used in CCA detection time window inspection
Surveying the period can be pre-configured with, and specifically be referred to configuration method shown in attached drawing 5b and Jie in above method embodiment
It continues, details are not described herein.
Therefore, in some enforceable modes of the present invention, when said network element equipment is base station, said network element equipment is also
Including：
First obtains module, for being retrieved as from above-mentioned CCA detection time window when detecting that data need to transmit
The target CCA detection period that operator belonging to base station is distributed is stated, operator belonging to above-mentioned base station is above-mentioned in continuous N
The period is detected using different CCA in CCA detection time window, above-mentioned M is less than or equal to above-mentioned N.
In other enforceable modes of the invention, when said network element equipment is terminal, said network element equipment is also wrapped
It includes：
First receiving module, for receiving the first Channel Detection configuration information of base station transmission, above-mentioned first Channel Detection
Configuration information include at least that CCA detection cycle and the operator belonging to above-mentioned base station distribute in above-mentioned CCA detection
Between window target CCA detect the period；
Second obtains module, for when detecting that data need to transmit, from above-mentioned first Channel Detection configuration information
It is retrieved as the above-mentioned target CCA in above-mentioned CCA detection time window that operator belonging to above-mentioned base station is distributed and detects the period,
Period, above-mentioned M detect using different CCA in the above-mentioned CCA detection time window of continuous N in operator belonging to above-mentioned base station
Less than or equal to above-mentioned N.
It is above-mentioned to describe network element device from the angle for configuring the target CCA detection period in advance for operator,
Network element device is further described this from the angle of CCA detection time window selection CCA detection period below
Network element device.
Therefore, in other enforceable modes of the invention, when said network element equipment is base station, said network element equipment
Further include：
First choice module, for when detecting that data need to transmit, from above-mentioned CCA detection time window selection target
CCA detects the period, and above-mentioned base station selects different CCA to detect period, above-mentioned M in the above-mentioned CCA detection time window of continuous N
Less than or equal to above-mentioned N.
In other enforceable modes of the invention, when said network element equipment is terminal, said network element equipment is also wrapped
It includes：
Second receiving module, the second channel for receiving base station transmission detect configuration information, above-mentioned second channel detection
Configuration information includes at least CCA detection cycle, the CCA detection time window in above-mentioned CCA detection cycle, above-mentioned CCA detection
The CCA that time window includes detects the period；
Third selecting module, for when detecting that data need to transmit, from above-mentioned CCA detection time window selection target
CCA detects the period, and above-mentioned terminal selects different CCA to detect period, above-mentioned M in the above-mentioned CCA detection time window of continuous N
Less than or equal to above-mentioned N.
Referring to Fig. 10, Figure 10 is a kind of structural schematic diagram of network element device provided in an embodiment of the present invention；Such as Figure 10 institute
Show, a kind of network element device may include：
Second detection module 1010, for being detected within the CCA detection period of the first channel idle assessment CCA detection cycle
Whether the channel of unauthorized frequency range is idle；
Second determining module 1020, for determining the detection that channel idle is not detected when channel idle is not detected
Whether number meets preset threshold；
Third detection module 1030, for when above-mentioned detection number meets above-mentioned preset threshold, above-mentioned first CCA to be examined
Surveying the period is changed to the 2nd CCA detection cycle, and detect within the CCA of the above-mentioned 2nd CCA detection cycle detection period it is above-mentioned not
Whether the channel of authorized spectrum band is idle, and above-mentioned 2nd CCA detection cycle is less than above-mentioned first CCA detection cycle；
Second transmission module 1040, for being carried out data transmission based on above-mentioned idle channel when detecting channel idle.
As can be seen that in embodiments of the present invention, the second detection module 1010 detects letter using the first CCA detection cycle
Road, when the second determining module 1020 determines that the number that can't detect channel idle meets preset threshold, third detection module
1030 can change the first CCA detection cycle into the 2nd CCA detection cycle, then be examined again using the 2nd CCA detection cycle again
Whether the channel surveyed under unauthorized frequency range is idle, is finally detecting idle channel number by the second transmission module 1040
According to, since the 2nd CCA detection cycle is less than the first CCA detection cycle, that is, the period by shortening Channel Detection, to mention
The number of high channel detection, fair detection probability is provided for network element device, realizes the public affairs between the LAA cell of different operators
It is flat to coexist, and can't detect the network element device of idle channel after by the replacement of CCA detection cycle, that is, can detect in CCA
Be staggered on time with the CCA detection time of other network element devices, reduce operator LAA cell between and operator LAA cell pair
The detection of WIFI is collided.
Optionally, above-mentioned preset threshold can be the positive integer more than or equal to 2, be specifically dependent upon portfolio or business pair
The susceptibility of time delay, for example portfolio is big or business is strong to delay sensitive, then preset threshold is smaller；Conversely, preset threshold can
With larger.Preset threshold can be configured using semi-static mode.
If preset threshold is 2, that is to say, that as soon as can't detect idle channel using CCA detection cycle continuous 2 times,
It is replaced with the 2nd CCA detection cycle, to shorten detection cycle.
Optionally, above-mentioned first CCA detection cycle can be the multiple of the 2nd CCA detection cycle, such as 2 times or 2 times
More than.
It is understood that equally letter can be continuously not detected in the first CCA detection cycle, the first CCA detection cycle
The Channel Detections configuration information such as the detection number of road free time and the 2nd CCA detection cycle is with a kind of configuration strategy or protocol mode
It is embedded in base station ic, wherein the detection number that channel idle is continuously not detected in the first CCA detection cycle here is upper
State the preset threshold in embodiment.
Therefore, in some enforceable modes of the invention, when said network element equipment is base station, which is specifically wrapped
Attached module shown in Fig. 10 is included.
In some enforceable modes of the invention, when said network element equipment is terminal, said network element equipment is also wrapped
It includes：
Third receiving module, for receiving the third Channel Detection configuration information of base station transmission, above-mentioned third Channel Detection
Configuration information include the first CCA detection cycle, the first CCA detection cycle continuously be not detected channel idle detection number and
2nd CCA detection cycle, the detection number that channel idle is continuously not detected of above-mentioned first CCA detection cycle are above-mentioned default
Threshold values.
Wherein, above-mentioned first CCA detection cycle is the multiple of above-mentioned 2nd CCA detection cycle, above-mentioned 2nd CCA detection week
Phase is greater than or equal to above-mentioned CCA and detects the period.
Particular content in network element device embodiment sees being discussed in detail in above method embodiment, no longer superfluous herein
It states.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
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 unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, said units
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
Above-mentioned unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The channel detection method and network element device of a kind of unauthorized frequency range provided by the present invention have been carried out in detail above
It introduces, for those of ordinary skill in the art, thought according to an embodiment of the present invention, in specific embodiment and application range
Upper there will be changes, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (12)
1. a kind of channel detection method of unauthorized frequency range, which is characterized in that including：
Whether the channel that network element device detects unauthorized frequency range within the destination channel free time assessment CCA detection period is idle, described
The target CCA detection period is contained in CCA detection time window, and the CCA detection time window is included in the frame structure of FBE
In CCA detection cycle, the CCA detection cycle includes the CCA detection time window, and in each CCA detection
Between include at least N number of CCA in window and detect the period, configured in N number of CCA detection period at least two different operators
Different CCA detects the period, and detects the period using different CCA in continuous N CCA detection time window, wherein the N,
M is the positive integer more than or equal to 2；
When detecting channel idle, the network element device, which is based on the idle channel, to carry out data transmission.
2. the method according to claim 1, wherein
When the network element device is base station, the network element device detects not within the destination channel free time assessment CCA detection period
Include before whether the channel of authorized spectrum band is idle：
When detecting that data need to transmit, the base station is retrieved as belonging to the base station from the CCA detection time window
The target CCA that operator is distributed detects the period, and operator belonging to the base station is in the continuous N CCA detection time window
The period is detected using different CCA in mouthful, the M is less than or equal to the N.
3. the method according to claim 1, wherein
When the network element device is base station, the network element device detects not within the destination channel free time assessment CCA detection period
Include before whether the channel of authorized spectrum band is idle：
When detecting that data need to transmit, the period is detected from the CCA detection time window selection target CCA in the base station,
The base station selects different CCA to detect the period in the continuous N CCA detection time window, and the M is less than or equal to institute
State N.
4. method according to claim 1 or 2, which is characterized in that
When the network element device is terminal, the network element device detects not within the destination channel free time assessment CCA detection period
Include before whether the channel of authorized spectrum band is idle：
The terminal receives the first Channel Detection configuration information that base station is sent, and the first Channel Detection configuration information at least wraps
Include CCA detection cycle and the target in the CCA detection time window that the operator belonging to the terminal distributes
CCA detects the period；
When detecting that data need to transmit, the terminal is retrieved as the terminal from the first Channel Detection configuration information
The target CCA in the CCA detection time window that affiliated operator is distributed detects the period, belonging to the terminal
The period is detected using different CCA in the continuous N CCA detection time window by operator, and the M is less than or equal to described
N。
5. method according to claim 1 or 3, which is characterized in that
When the network element device is terminal, the network element device detects not within the destination channel free time assessment CCA detection period
Include before whether the channel of authorized spectrum band is idle：
The terminal receives the second channel that base station is sent and detects configuration information, and the second channel detection configuration information at least wraps
Including CCA detection cycle, the CCA detection time window in the CCA detection cycle, the CCA detection time window includes
CCA detects the period；
When detecting that data need to transmit, the terminal detects the period from the CCA detection time window selection target CCA,
The terminal selects different CCA to detect the period in the continuous N CCA detection time window, and the M is less than or equal to institute
State N.
6. a kind of configuration method, which is characterized in that including：
Channel idle is set in the CCA detection cycle based on FBE frame structure and assesses CCA detection time window, and in each institute
It states and includes at least N number of CCA detection period in CCA detection time window；
In N number of CCA detection period, different CCA is configured at least two different operators and detects period, and continuous N
The period is detected using different CCA in a CCA detection time window, wherein described N, M are the positive integer more than or equal to 2.
7. according to the method described in claim 6, it is characterized in that,
Described is that at least two different operators configure the different CCA detection periods and include：
Different CCA is configured at least two different operators and detects the period, and any one of operator is in continuous N institute
State configured in CCA detection time window CCA detection the period it is not identical, the M be less than or equal to the N.
8. a kind of network element device, which is characterized in that including：
First detection module, for the destination channel free time assessment CCA detection period in detect unauthorized frequency range channel whether
Free time, the target CCA detection period are contained in CCA detection time window, and the CCA detection time window is included in FBE
Frame structure CCA detection cycle in, the CCA detection cycle includes the CCA detection time window, and each described
N number of CCA is included at least in CCA detection time window detects the period, it is different at least two in N number of CCA detection period
Operator configures the different CCA detection periods, and detects the period using different CCA in continuous N CCA detection time window,
Wherein, described N, M are the positive integer more than or equal to 2；
First transmission module, for carrying out data based on the idle channel when the detection module detects channel idle
Transmission.
9. network element device according to claim 8, which is characterized in that
When the network element device is base station, the network element device further includes：
First obtains module, for being retrieved as the base from the CCA detection time window when detecting that data need to transmit
The target CCA that operator belonging to standing is distributed detects the period, and operator belonging to the base station is in the continuous N CCA inspection
It surveys in time window and detects the period using different CCA, the M is less than or equal to the N.
10. network element device according to claim 8, which is characterized in that
When the network element device is base station, the network element device further includes：
First choice module, for when detecting that data need to transmit, from the CCA detection time window selection target CCA
The period is detected, the base station selects different CCA to detect the period in the continuous N CCA detection time window, and the M is small
In or equal to the N.
11. network element device according to claim 8 or claim 9, which is characterized in that
When the network element device is terminal, the network element device further includes：
First receiving module, for receiving the first Channel Detection configuration information of base station transmission, the first Channel Detection configuration
Information include at least that CCA detection cycle and the operator belonging to the terminal distribute in the CCA detection time window
The target CCA of mouth detects the period；
Second obtains module, for being obtained from the first Channel Detection configuration information when detecting that data need to transmit
The target CCA in the CCA detection time window that the operator belonging to the terminal distributes detects the period, described
The period is detected using different CCA in the continuous N CCA detection time window by operator belonging to terminal, and the M is less than
Or it is equal to the N.
12. network element device according to claim 9 or 10, which is characterized in that
When the network element device is terminal, the network element device further includes：
Second receiving module, the second channel for receiving base station transmission detect configuration information, the second channel detection configuration
Information includes at least CCA detection cycle, the CCA detection time window in the CCA detection cycle, the CCA detection time
The CCA that window includes detects the period；
Third selecting module, for when detecting that data need to transmit, from the CCA detection time window selection target CCA
The period is detected, the terminal selects different CCA to detect the period in the continuous N CCA detection time window, and the M is small
In or equal to the N.
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| CN201510149726.6A CN104717686B (en) | 2015-03-31 | 2015-03-31 | A kind of channel detection method and network element device of unauthorized frequency range |
| PCT/CN2015/082968 WO2016155134A1 (en) | 2015-03-31 | 2015-06-30 | Unlicensed frequency band channel detection method and network element device |
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| CN201510149726.6A CN104717686B (en) | 2015-03-31 | 2015-03-31 | A kind of channel detection method and network element device of unauthorized frequency range |
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