CN106470502B

CN106470502B - A kind of scheduling of resource, application method and the device of the unauthorized frequency range of LTE

Info

Publication number: CN106470502B
Application number: CN201510515999.8A
Authority: CN
Inventors: 柯颋; 刘建军; 侯雪颖; 沈晓冬; 童辉; 王锐
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2015-08-20
Filing date: 2015-08-20
Publication date: 2019-09-17
Anticipated expiration: 2035-08-20
Also published as: CN106470502A

Abstract

The invention discloses a kind of scheduling of resource of the unauthorized frequency range of LTE, application method and devices.To solve the problems, such as that UL scheduling crash rate existing in the prior art is higher.This method are as follows: base station divides the scheduled UE using identical running time-frequency resource for multiple UE groups, then, respectively each UE group configures mutually different additional time of intercept, each UE is after obtaining channel access chance, continue to correspond in corresponding additional time of intercept and carries out channel sense in duration, at the end of listening to, channel access is executed if still determining channel idle.In this way, it can accomplish to enable multiple UE chance of competitive channel access simultaneously by 1 scheduling, the interference environment as locating for different UE is different, it is thus unlikely all UE all disturbed the case where blocking occur, the suitable UE that can thus have ready conditions eventually is successfully accessed channel, transmitting uplink data is carried out, so that effectively increasing UL dispatches successfully hit rate, significantly improves the probability of success of UL transmission.

Description

A kind of scheduling of resource, application method and the device of the unauthorized frequency range of LTE

Technical field

The present invention relates to the communications field, in particular to scheduling of resource, application method and the dress of a kind of unauthorized frequency range of LTE It sets.

Background technique

With the surge of data traffic in mobile Internet, long term evolution (Long Term is used in unauthorized frequency range Evolution, LTE) technology become development trend.Unauthorized frequency range is for all wireless access technology (Radio Access Technologies, RAT) and all operation commercial cities be it is open, different operators right having the same is in unauthorized frequency Respective RAT system (such as WIFI and unlicensed spectrum LTE) is disposed in section.

Due to be between the website of different RAT operator deployments do not do interference coordination planning (e.g., do not do Bus stop planning, Site planning), therefore do not allow these website simultaneous transmission business, otherwise will cause and stronger interfere with each other phenomenon.

Similarly, even if belonging to identical RAT, by being generally also that will not do interference coordination between the system of different operators deployment Planning, therefore do not allow these website simultaneous transmission business yet, otherwise will cause and stronger interfere with each other phenomenon.

In order to make different RAT system or with RAT system different operator it is fair orderly, do not conflict and (forbid simultaneous transmission industry Business) compete using unauthorized frequency range, introduce listem-before-talk (Listen Before Talk, LBT) mechanism, i.e., every time into Before the transmission of row data, reserves a period of time first to perceive to carrier wave, carry out clear channel assessment (CCA) (Clear Channel Assessment, CCA) process, can be with just starting to carry out data transmission when perceiving carrier wave, and carry out data transmission having every time The limitation of maximum time.

In addition, the reliability in order to guarantee business transmission in unauthorized frequency range, can be assisted unauthorized using authorized spectrum band Frequency range carries out business transmission, and the reliability of authorized spectrum band is combined with unauthorized frequency range bandwidth resources abundant, is guaranteeing industry Lifting system handling capacity while business transmission reliability.Specifically, in order to guarantee that LTE in the performance of unauthorized frequency range, is assisted at present View requires to use LTE skill in unauthorized frequency range using the mode of carrier wave polymerization (Carrier Aggregation, CA) or dual link Art.In CA mode, using the carrier wave in authorized spectrum band as main carrier, using the carrier wave in unauthorized frequency range as subcarrier, Realize the unauthorized frequency range access way under authorized spectrum band auxiliary, auxiliary authorization access (Licensed Assisted Access, LAA).Particularly, in unauthorized frequency range, in order to guarantee either to transport with others LAA with others RAT system Battalion quotient is fair orderly, does not compete with not conflicting using unauthorized frequency range, and the base station (eNB) of LAA system and user equipment (UE) are passing When defeated business, equally require to follow LBT mechanism.

Since the base station LAA disposed in unlicensed spectrum and WIFI website do not do interference coordination planning, and it is different Interference coordination planning will not be done between the base station LAA of operator deployment, in order to avoid due to these website simultaneous transmission business Cause it is stronger interfere with each other phenomenon, the eNB and UE of LAA system require to follow LBT mechanism in transmission services, with guarantee Justice is orderly between different RAT and different LAA operator, do not compete the unauthorized frequency range of use with not conflicting.

UE uplink (Up Load) transmission belongs to chance transmission, i.e., not necessarily every time can successful contention after UE is dispatched by UL To channel access chance.If UE fails, to channel access chance, UE will not send UL in the subframe that is scheduled for competition Data will also result in eNB by the waste of the UE UL resource distributed to will lead to meaningless UL dispatch expense.Obviously, Excessively high UL scheduling crash rate will significantly deteriorate the UL transmission performance of LAA.

Influencing " UL dispatches crash rate " has 2 factors, it may be assumed that 1) positional factor；2) time factor.Wherein based on time factor Want influence factor.

Positional factor: since eNB and UE are located in a different geographical location, the Blind channel that eNB and UE are perceived is not busy State is different, i.e. the CCA channel-aware result that eNB and UE are done does not have reciprocity；

Time factor: in LTE system, the UL resource of UE is distributed in advance by eNB.Due to U-band channel competition ring Border is complicated and changeable, is whether to predict UE in advance when (such as at subframe n) UL resource scheduling information is sent to UE by eNB It can be competed at scheduled moment (such as at subframe n+k) and arrive channel access chance.If UE fails at subframe n+k Channel access chance is competed, then the UL resource scheduling information sent at subframe n will be cancelled because of failure.

For example, it is assumed that eNB forward scheduling UE1 does UL transmission.But UE1 nearby has a interference source (e.g., WIFI equipment), and And interference source a period of time interior transmission data and busy channel before and after the scheduled UL subframe of UE1.At this moment, UE1 can only be abandoned Specifically scheduled UL transmission.

But near other farther away UE (such as UE2 and UE3) of distance UE1 and interference source or these interference are not present Source a period of time before and after the UL subframe that UE1 is scheduled is interior without using channel.Therefore, if eNB does not dispatch UE1, change To dispatch UE2 or UE3, then UE2 or UE3 can successful contention to current UL transmission opportunity.

It is clear that in order to improve the successful hit rate of UL scheduling, however it remains biggish performance improvement space.

Therefore the higher problem of crash rate is dispatched for UL in current unauthorized frequency range, this case will study one kind can be effective Improve the technology that UL dispatches successfully hit rate.

Summary of the invention

The embodiment of the present invention provides scheduling of resource, application method and the device of a kind of unauthorized frequency range of LTE.It is existing to solve There is UL present in technology to dispatch the higher problem of crash rate.

Specific technical solution provided in an embodiment of the present invention is as follows:

A kind of resource regulating method of the unauthorized frequency range of LTE, comprising:

Base station divides the scheduled UE using identical running time-frequency resource for multiple UE groups, wherein a UE group includes each Interference value is lower than setting thresholding when UE uses identical running time-frequency resource；

Base station is respectively that each UE group configures mutually different additional time of intercept；Wherein, the volume that a UE group obtains Outer time of intercept, all UE being used to indicate in one UE group executed LBT operation and obtain channel access chance after, Continue to correspond in corresponding additional time of intercept and carry out channel sense in duration, at the end of listening to, if still determining channel idle Then execute channel access.

Preferably, dispatch multiple UE using identical running time-frequency resource, it is characterized in time domain and dispatches multiple UE and use identical use In the subframe of transmission upstream data, the multiple UE is then dispatched on frequency domain and uses identical or different PRB.

Preferably, being that channel is non-orthogonal between difference UE group, the channel is nonopiate to be referred to if the difference UE Multiple UE of group use identical running time-frequency resource, then interference value is greater than or equal to setting thresholding.

Preferably, including a UE in a UE group, alternatively, containing at least two UE.

Preferably, further comprising:

Base station is respectively that each UE group configures corresponding LBT time of intercept, wherein the UE for belonging to same UE group has Identical LBT time of intercept；

Preferably, further comprising:

Base station is that the additional time of intercept of any one UE group configuration is less than minimum LBT time of intercept unit.

Preferably, further comprising:

The additional time of intercept configuration information of each UE group is carried in UL DCI by base station, is sent in corresponding UE group Each UE；Alternatively,

Base station first pass through in advance high-level signaling by the calculating initial value of the additional time of intercept configuration information of each UE group notify to Each UE in corresponding UE group indicates that each UE group is based on obtaining and calculates initial value, obtains in conjunction with preset computation rule corresponding Additional time of intercept configuration information.

Preferably, the preset computation rule is first passed through high-level signaling by base station in advance notifies each UE group, alternatively, by base It stands side and terminal side is made an appointment.

Preferably, the computation rule are as follows:

Additional time of intercept=f (calculating initial value), wherein f () is setting function；And f (x) ≠ f (y), if x ≠ y, In, x, y are to calculate initial value；Alternatively,

Additional time of intercept=f (calculating initial value), wherein f (x)=ax, x are to calculate initial value and x ∈ [1,2 ..., m], ax The preset discrete value interval of ∈ [a1, a2, a3 ..., am].

Preferably, the computation rule are as follows:

Additional time of intercept=g (calculating initial value, setup parameter ... ...), wherein g () is based on pseudo random pattern or wheel Ask the setting function of patterns of change；And g (x, setup parameter ... ...) ≠ g (y, setup parameter ...), if x ≠ y, x, y are to calculate Initial value；Alternatively,

Additional time of intercept=g (calculating initial value, setup parameter ... ...), wherein g () is based on pseudo random pattern or wheel Ask the setting function of patterns of change；G (x, u1 ...)=av, x be calculate initial value and x ∈ [1,2 ..., m], av ∈ it is preset from Dissipate value interval [a1, a2, a3 ..., am].

Preferably, further comprising:

Base station uses a UL DCI, and one group of identical running time-frequency resource is scheduled to multiple UE simultaneously and is used, wherein base station Using preset g-RNTI, the UL DCI is scrambled, and the g-RNTI is prenoticed into UE by high-level signaling, is enabled UE descrambles search space based on the g-RNTI when carrying out DCI search, when determining that descrambling obtains UL DCI, in institute State competitive channel access chance on the running time-frequency resource of UL DCI instruction.

Preferably, further comprising:

Base station is respectively after each described UE group configures mutually different additional time of intercept, what is be scheduled accordingly At running time-frequency resource, the RNTI in advance for each UE distribution is respectively adopted and carries out data de-scrambling, determines and is obtained using any RNTI After corresponding upstream data, determine that the corresponding UE of any RNTI is successfully accessed channel；Alternatively,

Base station is respectively after each described UE group configures mutually different additional time of intercept, what is be scheduled accordingly At running time-frequency resource, the cyclic shift demodulated reference signal OCC index in advance for each UE distribution is respectively adopted and is detected, really After regular inspection measures any cyclic shift demodulated reference signal OCC index, any cyclic shift demodulated reference signal OCC is determined It indexes corresponding UE and is successfully accessed channel；Alternatively,

Base station is respectively after each described UE group configures mutually different additional time of intercept, what is be scheduled accordingly At running time-frequency resource, the cyclic shift demodulated reference signal OCC index in advance for each UE distribution is respectively adopted and is detected, really After regular inspection measures any cyclic shift demodulated reference signal OCC index, for any cyclic shift demodulated reference signal OCC Corresponding multiple UE are indexed, at the running time-frequency resource, are continued to be respectively adopted in advance as each UE distribution in the multiple UE RNTI carry out data de-scrambling, determine after obtaining corresponding upstream data using any RNTI, determine that any RNTI is corresponding UE be successfully accessed channel；Alternatively,

Base station is respectively after each described UE group configures mutually different additional time of intercept, what is be scheduled accordingly At running time-frequency resource, the tune scrambling code RNTI in advance for each UE distribution is respectively adopted and carries out Seize ACK message descrambling, determines to use and appoint When one RNTI obtains the designated symbols in Seize ACK message, determine that the corresponding UE of any RNTI is successfully accessed channel.

A kind of resource using method of the unauthorized frequency range of LTE, comprising:

UE is indicated according to base station, obtains the additional time of intercept of base station configuration, wherein the UE is divided to one by base station UE group, each UE in one UE group it is scheduled using interference value when identical running time-frequency resource lower than setting door Limit；

The UE continues after having executed LBT operation and having obtained channel access chance in corresponding additional time of intercept pair It answers and carries out channel sense in duration, at the end of listening to, execute channel access if still determining channel idle.

Preferably, scheduled use identical running time-frequency resource, characterizes multiple UE and be scheduled in the time domain and be used for using identical The subframe for transmitting upstream data is then scheduled on frequency domain and uses identical or different Physical Resource Block PRB.

Preferably, further comprising:

If UE at the end of listening to, determines that channel is occupied, then this channel access chance is abandoned.

Preferably, further comprising:

UE is indicated according to base station, obtains the LBT time of intercept of base station configuration, wherein in a UE group of the UE ownership Each UE be configured identical LBT time of intercept.

Preferably, further comprising:

The additional time of intercept that UE obtains base station configuration is less than minimum LBT time of intercept unit.

Preferably, further comprising:

UE obtains additional time of intercept configuration information according to the UL DCI that base station is sent；Alternatively,

UE first passes through the calculating initial value that high-level signaling obtains the additional time of intercept configuration information of base station notice in advance, and is based on It obtains and calculates initial value, obtain corresponding additional time of intercept configuration information in conjunction with preset computation rule.

Preferably, the preset computation rule is obtained by UE by the high-level signaling that base station is sent, alternatively, by base station side It makes an appointment with terminal side.

Preferably, the computation rule are as follows:

Preferably, further comprising:

When UE carries out DCI search, search space is solved by the g-RNTI that high-level signaling is prenoticed based on base station It disturbs, when determining that descrambling obtains UL DCI, competitive channel accesses chance on the running time-frequency resource of UL DCI instruction；Wherein, institute Stating UL DCI is that base station is used for one group of identical running time-frequency resource while being scheduled to multiple UE and use, and by base station using institute G-RNTI is stated, the UL DCI is scrambled.

A kind of resource scheduling device of the unauthorized frequency range of LTE, comprising:

Division unit, for dividing the scheduled UE using identical running time-frequency resource for multiple UE groups, wherein a UE group packet Interference value is lower than setting thresholding when each UE contained uses identical running time-frequency resource；

Scheduling unit, for being respectively that each UE group configures mutually different additional time of intercept；Wherein, a UE group Obtain additional time of intercept, all UE being used to indicate in one UE group has executed LBT operation and acquisition channel connect After entering chance, continuation corresponds in corresponding additional time of intercept and carries out channel sense in duration, at the end of listening to, if still determining Channel idle then executes channel access.

Preferably, the scheduling unit is further used for:

Multiple UE are dispatched using identical running time-frequency resource, i.e., dispatches multiple UE in the time domain using identical and is used for transmission uplink The subframe of data then dispatches the multiple UE on frequency domain and uses identical or different PRB.

Preferably, be that channel is non-orthogonal between the different UE groups that the division unit divides, the nonopiate finger of channel Be that interference value, which is greater than or equal to, to be set if multiple UE of the difference UE group are using identical running time-frequency resource Determine thresholding.

Preferably, including a UE in the UE group that the division unit divides, alternatively, containing at least two UE.

Preferably, the scheduling unit is further used for:

Respectively each UE group configures corresponding LBT time of intercept, wherein belongs to the UE of same UE group with identical LBT time of intercept；

Preferably, the scheduling unit is further used for:

Additional time of intercept for the configuration of any one UE group is less than minimum LBT time of intercept unit.

Preferably, the scheduling unit is further used for:

The additional time of intercept configuration information of each UE group is carried in UL DCI, is sent to every in corresponding UE group A UE；Alternatively,

High-level signaling is first passed through in advance to notify the calculating initial value of the additional time of intercept configuration information of each UE group to corresponding UE group in each UE, indicate that each UE group is based on obtaining and calculate initial value, obtain corresponding volume in conjunction with preset computation rule Outer time of intercept configuration information.

Preferably, the preset computation rule first passes through high-level signaling by the scheduling unit in advance notifies each UE group, Alternatively, being made an appointment by described device and terminal side.

Preferably, the computation rule are as follows:

Preferably, the scheduling unit is further used for:

Using a UL DCI, one group of identical running time-frequency resource is scheduled to multiple UE simultaneously and is used, wherein the scheduling Unit uses preset g-RNTI, scrambles to the UL DCI, and the g-RNTI is prenoticed by high-level signaling UE is enabled UE when carrying out DCI search, is descrambled based on the g-RNTI to search space, when determining that descrambling obtains UL DCI, Competitive channel accesses chance on the running time-frequency resource of UL DCI instruction.

Preferably, the scheduling unit is further used for:

After each respectively described UE group configures mutually different additional time of intercept, in time-frequency scheduled accordingly Energy Resources Service is respectively adopted the tune scrambling code RNTI in advance for each UE distribution and carries out data de-scrambling, determined and obtained using any RNTI After obtaining corresponding upstream data, determine that the corresponding UE of any RNTI is successfully accessed channel；Alternatively,

After each respectively described UE group configures mutually different additional time of intercept, in time-frequency scheduled accordingly Energy Resources Service is respectively adopted the cyclic shift demodulated reference signal OCC index in advance for each UE distribution and is detected, determines inspection After measuring any cyclic shift demodulated reference signal OCC index, any cyclic shift demodulated reference signal OCC index is determined Corresponding UE is successfully accessed channel；Alternatively,

After each respectively described UE group configures mutually different additional time of intercept, in time-frequency scheduled accordingly Energy Resources Service is respectively adopted the cyclic shift demodulated reference signal OCC index in advance for each UE distribution and is detected, determines inspection After measuring any cyclic shift demodulated reference signal OCC index, for any cyclic shift demodulated reference signal OCC index Corresponding multiple UE continue to be respectively adopted in advance at the running time-frequency resource as each UE distribution in the multiple UE RNTI carries out data de-scrambling, determines after obtaining corresponding upstream data using any RNTI, determines that any RNTI is corresponding UE is successfully accessed channel；Alternatively,

After each respectively described UE group configures mutually different additional time of intercept, in time-frequency scheduled accordingly Energy Resources Service is respectively adopted the tune scrambling code RNTI in advance for each UE distribution and carries out Seize ACK message descrambling, determines using any When RNTI obtains the designated symbols in Seize ACK message, determine that the corresponding UE of any RNTI is successfully accessed channel.

A kind of resource use device of the unauthorized frequency range of LTE, comprising:

Acquiring unit obtains the additional time of intercept of base station configuration, wherein described device quilt for indicating according to base station Base station is divided to a UE group, and each UE in one UE group is scheduled using dry between when identical running time-frequency resource Value is disturbed lower than setting thresholding；

Access unit, for after having executed LBT operation and having obtained channel access chance, continuation additionally to be listened to accordingly Time, which corresponds to, carries out channel sense in duration, at the end of listening to, execute channel access if still determining channel idle.

Preferably, described device is scheduled to use identical running time-frequency resource with other UE, characterizes multiple UE and adjusted in the time domain Degree is then scheduled on frequency domain using the identical subframe for being used for transmission upstream data and is used identical or different PRB.

Preferably, the access unit is further used for:

If determining that channel is occupied at the end of listening to, then this channel access chance is abandoned.

Preferably, the acquiring unit is further used for:

It is indicated according to base station, obtains the LBT time of intercept of base station configuration, wherein in a UE group of described device ownership Each UE be configured identical LBT time of intercept.

Preferably, the additional time of intercept for the base station configuration that the acquiring unit obtains is less than minimum LBT time of intercept list Position.

Preferably, the acquiring unit is further used for:

Additional time of intercept configuration information is obtained according to the UL DCI that base station is sent；Alternatively,

The calculating initial value that high-level signaling obtains the additional time of intercept configuration information of base station notice is first passed through in advance, and is based on obtaining Initial value must be calculated, obtains corresponding additional time of intercept configuration information in conjunction with preset computation rule.

Preferably, the preset computation rule is obtained by the acquiring unit by the high-level signaling that base station is sent, or Person is made an appointment by base station side and described device.

Preferably, the computation rule are as follows:

Preferably, the access unit is further used for:

When carrying out DCI search, search space is descrambled by the g-RNTI that high-level signaling is prenoticed based on base station, When determining that descrambling obtains UL DCI, competitive channel accesses chance on the running time-frequency resource of UL DCI instruction；Wherein, the UL DCI is that base station is used to that one group of identical running time-frequency resource to be scheduled to multiple UE and used simultaneously, and by base station using the g- RNTI scrambles the UL DCI.

In the embodiment of the present invention, base station divides the scheduled UE using identical running time-frequency resource for multiple UE groups, wherein one Interference value is lower than setting thresholding when each UE that UE group includes uses identical running time-frequency resource, then, respectively Each UE group configures mutually different additional time of intercept, and each UE in each UE group is executing LBT operation and obtaining After channel access chance, continuation corresponds in corresponding additional time of intercept and carries out channel sense in duration, at the end of listening to, if Still determine that channel idle then executes channel access.In this way, can accomplish to enable multiple UE competitive channel access simultaneously by 1 scheduling Chance, the interference environment as locating for different UE is different, the unlikely feelings for all disturbed obstruction of all UE occur Condition, therefore, the suitable UE that eventually has ready conditions are successfully accessed channel, transmitting uplink data are carried out, to effectively increase UL tune Successful hit rate is spent, the probability of success of UL transmission is significantly improved.

Detailed description of the invention

Fig. 1 carries out scheduling of resource flow chart in unauthorized LTE frequency range for eNB in the embodiment of the present invention；

Fig. 2 carries out scheduling of resource flow chart in unauthorized LTE frequency range by eNB for UE in the embodiment of the present invention；

Fig. 3 is eNB illustrative view of functional configuration in the embodiment of the present invention；

Fig. 4 is UE illustrative view of functional configuration in the embodiment of the present invention.

Specific embodiment

In order to solve the problems, such as that UL scheduling crash rate existing in the prior art is higher, in the embodiment of the present invention, eNB is UL When scheduling, one group of identical running time-frequency resource is scheduled to multiple UE simultaneously and is used；ENB passes through interference coordination mechanism again, so that this Only part can compete UL channel access chance simultaneously in a little UE.

Further description is made to the preferred embodiment of the invention with reference to the accompanying drawing.

As shown in fig.1, eNB is as follows in the detailed process that unauthorized frequency range carries out scheduling of resource in the embodiment of the present invention:

Step 100: base station divides the scheduled UE using identical running time-frequency resource for multiple UE groups, wherein a UE group packet Interference value is lower than setting thresholding when each UE contained uses identical running time-frequency resource.

Wherein, so-called scheduled using identical running time-frequency resource, refer to that these UE are scheduled in the time domain and uses identical use In the subframe of transmission upstream data, and it can be scheduled on frequency domain and use identical or different Physical Resource Block (Physical Resource Block, Physical Resource Block), i.e., it can be overlapped on frequency domain, alternatively, identical.

It can only include a UE in one UE group, also may include more than two UE, alternatively referred to as multiple UE.

On the other hand, each UE that a UE group includes is lower than using interference value when identical running time-frequency resource Thresholding is set, specifically, can be realized by following two mode:

First way are as follows: be between each UE that a UE group includes channel quadrature (between i.e. each UE channel that This independence), so-called channel is nonopiate to be referred to if multiple UE of the difference UE group are using identical running time-frequency resource, each other Between interference value be greater than or equal to setting thresholding.In such cases, it belongs between each UE of same UE group using identical Interference value must be lower than setting thresholding when running time-frequency resource.

The second way are as follows: it is that channel is non-orthogonal between each UE that a UE group includes, i.e., channel between each UE Dependent each other, in such cases, it is also necessary to when dividing UE group, further ensure that

It belongs between each UE of same UE group using interference value when identical running time-frequency resource lower than setting Thresholding.

Further, it is nonopiate to can be channel between different UE groups, since only one final UE group can compete To channel access chance, therefore, the transmission interference between will not causing.And working as only includes a UE in a UE group When, identical running time-frequency resource is dispatched to different UE groups by base station, is equivalent to, and identical running time-frequency resource is scheduled to channel simultaneously Non-orthogonal difference UE is used, and certainly, has finally been only capable of a UE successful contention to channel access chance, details are not described herein.

Step 110: base station is respectively that each UE group configures mutually different additional time of intercept；Wherein, a UE group Obtain additional time of intercept, all UE being used to indicate in one UE group has executed LBT operation and acquisition channel connect After entering chance, continuation corresponds in corresponding additional time of intercept and carries out channel sense in duration, at the end of listening to, if still determining Channel idle then executes channel access.

Since the additional time of intercept that each UE group obtains is different, even if two UE groups are executing LBT operation Channel access chance is obtained simultaneously afterwards, it can also be after executing different additional time of intercept, it is ensured that only one most UE group Practical access channel.

After the practical access channel of some UE group, meeting busy channel sends uplink signal, since each UE in UE group makes With interference value when identical running time-frequency resource lower than setting thresholding, therefore, even if these UE access channel simultaneously, that It will not be interfered between this.

On the other hand, if each UE in a UE group corresponds to progress channel in duration in corresponding additional time of intercept and detects It listens, and at the end of listening to, determining that channel is occupied, then the UE in this UE group can abandon this time accessing chance, Waiting accesses chance next time.

Further, base station can also be respectively that each UE group configures corresponding LBT time of intercept, wherein belong to The UE of same UE group LBT time of intercept having the same, that is, each UE in same UE group is not only having the same additionally to be listened to Time, it may have identical LBT time of intercept.

Preferably, it is that any one UE group minimum LBT is detectd that the additional time of intercept that base station is the configuration of any one UE group, which is less than, Listen time quantum (e.g., single ECCA time of intercept, i.e. CCA rollback time slot).

On the other hand, in order to realize interference coordination mechanism between group, in the embodiment of the present invention, eNB needs for different UE groups Different additional time of intercept is configured, and eNB can be used and is not limited to following methods for the configuration of additional time of intercept Information notifies UE, specific as follows:

The first situation: the additional time of intercept configuration information of each UE group is carried on uplink scheduling downlink and controlled by base station In information (UL DCI), each UE for being sent to after being updated in each scheduling in corresponding UE group.

Second situation: base station first passes through high-level signaling for the calculating of the additional time of intercept configuration information of each UE group in advance Initial value notifies to indicate that each UE group is based on obtaining to each UE in corresponding UE group and calculate initial value, advise in conjunction with preset calculating Then obtain corresponding additional time of intercept configuration information.Wherein, so-called preset computation rule can first pass through height by base station in advance Layer signals each UE group, can also be made an appointment by base station side and terminal side, e.g., the mode of making an appointment includes but is not limited to Standardized instrument.

Preferably, the value based on above-mentioned computation rule additional time of intercept obtained, can be it is relatively-stationary, or Person is changed over time based on setting rule, and UE does not need temporarily to interact again additional when calculating specific additional time of intercept Signaling.

It describes in detail separately below.

Under the first scene, the value of additional time of intercept be it is relatively-stationary, this case be usually applied to have spy Determine the scene of priority.Such as, it is assumed that the channel access priority of UE group A is higher than the channel access priority of UE group B, then base station is UE group A configures shorter additional time of intercept.For another example, include the more UE of number UE group have higher channel access it is preferential Grade, then base station is that this kind of UE group configures shorter additional time of intercept.

For example, base station is that each UE group assigns different additional time of intercept seeds (i.e. above-mentioned calculating initial value) respectively, it is real The value of the additional time of intercept on border is calculated by additional time of intercept seed.

Such as, computation rule are as follows: additional time of intercept=f (additional time of intercept seed), wherein f () is setting function； And there is characteristic: f (x) ≠ f (y), if x ≠ y, wherein x, y are additional time of intercept seed (i.e. above-mentioned calculating initial value).

For another example: additional time of intercept=f (additional time of intercept seed), wherein f (x)=ax, x are to calculate initial value, and x ∈ [1,2 ..., m], and enable；In such cases, the value of additional time of intercept is the value in a discrete time set, such as: Additional time of intercept ∈ [a1, a2, a3 ..., am], wherein 0≤a1 < a2 < a3 < ... the LBT time of intercept of < am < common.

Under second of scene, the value of additional time of intercept is changed over time, and this case is usually applied to justice Scene says in the sense that statistical average, different UE groups channel access chance having the same.Such as, in moment t1, UE group The additional time of intercept of A is less than the additional time of intercept of UE group B, but in next moment t2, the additional time of intercept of UE group A It may will be greater than the additional time of intercept of UE group B.Particularly, the rule that additional time of intercept changes over time can be it is pseudo- with Machine, or specific rule is followed, such as poll rule.

Such as: base station is that each UE group assigns different additional time of intercept seeds (i.e. above-mentioned calculating initial value) respectively, real The value of the additional time of intercept on border is calculated by additional time of intercept seed.

Additional time of intercept=g (calculating initial value, setup parameter ... ...), wherein g () is based on pseudo random pattern or wheel Ask the setting function of patterns of change；G (x, u1 ...)=a_v, x is to calculate initial value and x ∈ [1,2 ..., m], a_v∈ is preset discrete Value interval [a1, a2, a3 ..., am]

Wherein, setup parameter may include: that wireless frame number, subframe number, time-gap number etc. are related with current time Parameter is also possible to include the parameter related with environment such as cell number.

Such as, additional time of intercept=g (additional time of intercept seed, current subframe number), alternatively, additional time of intercept= G (additional time of intercept seed, current subframe number, current wireless frame number), alternatively, additional time of intercept=g (is additionally listened to Time seed, current wireless frame number), wherein g () is setting function；And with characteristic: g (x, u1, u2 ...) ≠ g (y, u1, U2 ...), if x ≠ y, wherein x, y are additional time of intercept seed (i.e. above-mentioned calculating initial value), and u1, u2 ... they are preset solid Determine parameter, e.g., current subframe number and current wireless frame number etc.；Particularly, g (x, u1, u2 ...) changes with time rule It can be pseudorandom, be also possible to follow specific rule, e.g., poll rule.

For another example additional time of intercept=g (additional time of intercept seed, current subframe number), alternatively, additional time of intercept =g (additional time of intercept seed, current subframe number, current wireless frame number), alternatively, additional time of intercept=g (is additionally detectd Time seed is listened, current wireless frame number), wherein g () is setting function；Enable g (x, u1 ...)=av, [e.g., g (x, u1)= Av, alternatively, g (x, u1, u2)=av ... ...], wherein x be additional time of intercept seed (i.e. above-mentioned calculating initial value) and x ∈ [1, 2 ..., m], the preset discrete value interval [a1, a2, a3 ..., am] of av ∈；Wherein,

For pseudo random pattern, g (x, u1)=a is enabled_v, wherein v=[(x+h (u1) -1) mod m]+1, or, person enable g (x, U1, u2)=av, wherein v=[(x+h (d (u1, u2)) -1) mod m]+1, wherein h is preset pseudo-random function, is such as obeyed equal Even distribution, normal distribution or it is other distribution patterns or is to be generated by cyclically shifted sequences, or have Gold sequence Column generate, or have other pseudo-random sequences generations etc.；And d (u1, u2) can be arbitrary function, as d (u1, u2)= U1+u2 or d (u1, u2)=u1*u2 etc..

For poll pattern, g (x, u1)=a is enabled_v, wherein v=[(x+u1-1) mod m]+1；H is enabled g (x, u1, u2) =a_v, wherein v=[(x+u1+u2-1) mod m]+1.

Further, in the embodiment of the present invention, when eNB does UL scheduling, one group of identical running time-frequency resource is scheduled to simultaneously Multiple UE are used, and particularly, in order to improve UL dispatching efficiency, eNB can introduce group scheduling mechanism, that is, use a UL One group of identical running time-frequency resource is just scheduled to multiple UE simultaneously and used, wherein can define a kind of new scrambling code by DCI --- Group scheduling scrambling code (g-RNTI), eNB scramble UL DCI using g-RNTI, and the g-RNTI is preparatory by high-level signaling It notifies UE, can enable UE when carrying out DCI search in this way, search space is descrambled based on above-mentioned g-RNTI, determine descrambling When obtaining UL DCI, competitive channel accesses chance on the running time-frequency resource of UL DCI instruction.

It may be noted that it is not same concept that group, which adjusts so-called " group " and the UE group of front in scrambling code, here, refer to " all It using the UE " of identical running time-frequency resource, that is, include all UE groups.

Further, in the embodiment of the present invention, when eNB does UL scheduling, one group of identical running time-frequency resource is scheduled to simultaneously Multiple UE are used, and particularly, in order to improve UL dispatching efficiency, long-acting UL scheduling mechanism can be introduced, in this way, eNB can be flexible It is UE schedule UL transmissions resource, and does not have to worry because UE competition dispatches Problem of Failure less than UL caused by channel.Specifically , in the embodiment of the present invention, base station is divided into scheduled using multiple UE of identical running time-frequency resource according to channel independence feature Multiple UE groups, so that the channel between the internal difference UE of same UE group is independent of one another, and eNB allows and is under the jurisdiction of not by configuring UE with UE group has different additional time of intercept；So, after eNB determines that any one UE group obtains channel access chance, After any one UE in any one UE group completes transmitting uplink data, another channel independence feature that meets is chosen again UE replaces any one UE.

For example, it is assumed that the UEy successful contention in UE group x is to channel access chance, and completes the transmission of UL data, then eNB A UEz can be optionally taken to replace the UEy of UE group again, the UEz being newly added is also required to meet channel independence spy in UE group x It levies, i.e., channel is independent of one another between each UE.

On the other hand, in the embodiment of the present invention, when doing UL scheduling due to eNB, one group of identical running time-frequency resource is adjusted simultaneously It spends and is used to multiple UE, eNB passes through interference coordination mechanism again, so that only part can compete UL channel simultaneously in these UE Chance is accessed, on specific running time-frequency resource, eNB needs know whether that there are UE to obtain UL transmission opportunity, and by which UE is practical to obtain UL transmission opportunity；For this problem, it can use but be not limited to following several solutions:

The first solution are as follows: eNB is respectively after each UE group configures mutually different additional time of intercept, in phase It (at the scheduled identical running time-frequency resource used of i.e. each UE, is similarly hereinafter repeated no more) at the scheduled running time-frequency resource answered, respectively It uses and carries out data de-scrambling in advance for the tune scrambling code (RNTI) of each UE distribution, determine and obtained on corresponding using any RNTI After row data, determine that the corresponding UE of any RNTI is successfully accessed channel.

When using the first solution, the U-band Physical Uplink Shared Channel of the side eNB is really used (Unlicensed-band, Physical Uplink Shared Channel, U-band PUSCH) detection, that is, be successfully accessed The RNTI that the UE of channel first passes through high-level signaling distribution in advance when sending upstream data, using eNB is scrambled；And eNB is every Descrambled at a possible running time-frequency resource position using the RNTI for being directed to each UE distribution in advance, if it is possible to using a certain RNTI successfully descrambles upstream data out, then it can be asserted that corresponding UE is competed to channel resource.

Second of solution are as follows: eNB is respectively after each UE group configures mutually different additional time of intercept, in phase At the scheduled running time-frequency resource answered, it is respectively adopted in advance as the cyclic shift demodulated reference signal OCC rope of each UE distribution Draw (Cyclic shift for DMRS and OCC index) to be detected, confirmly detects any Cyclic shift After for DMRS and OCC index, determine that any Cyclic shift for DMRS and OCC index is corresponding UE is successfully accessed channel.

When using second of solution, really detected using the U-band UL DMRS of the side eNB, i.e. the side eNB Accelerate to judge whether UE competes channel resource by the DMRS (or others RS) in blind examination U-band PUSCH.It is i.e. successful The UE for accessing channel can send UL DMRS, the signal sequence of the UL DMRS, the UL sent by eNB by high-level signaling to eNB Cyclic shift for DMRS and OCC index field in DCI determines.And Cyclic shift for DM RS And OCC index technology maximum supports 8 UE multiplexings, therefore, if the called UE using identical running time-frequency resource Cyclic shift for DMRS and OCC index is different, then it is which UE obtains channel access that eNB, which can be distinguished uniquely, Chance.

The third solution are as follows: eNB is respectively after each UE group configures mutually different additional time of intercept, in phase At the scheduled running time-frequency resource answered, it is respectively adopted in advance as the Cyclic shift for DM RS and of each UE distribution OCC index is detected, after confirmly detecting any Cyclic shift for DM RS and OCC index, for this The corresponding multiple UE of any Cyclic shift for DM RS and OCC index continue point at above-mentioned running time-frequency resource It does not use the RNTI distributed in advance for each UE in multiple UE to carry out data de-scrambling, determines corresponding using any RNTI acquisition Upstream data after, determine that the corresponding UE of any RNTI is successfully accessed channel；Alternatively,

When using the third solution, really using the U-band UL DMRS detection of the side eNB and the side eNB U-band PUSCH detection combination.I.e. if the Cyclic shift for of the scheduled UE using identical running time-frequency resource DM RS and OCC index field may repeat (number > 8 UE e.g., being scheduled using identical running time-frequency resource), then eNB It first passes through U-band UL DMRS detection and reduces the possible search range UE, if still having uncertainty, then pass through again Uniquely distinguish to the demodulation of U-band PUSCH is which UE obtains channel access chance.

4th kind of solution are as follows: eNB is respectively after each UE group configures mutually different additional time of intercept, in phase At the scheduled running time-frequency resource answered, the RNTI in advance for each UE distribution is respectively adopted and carries out Seize ACK message (preamble) Descrambling determines when obtaining the designated symbols in preamble using any RNTI, determines that the corresponding UE of any RNTI successfully connects Enter channel.

When using the 4th kind of solution, really it is based on indicating in UL preamble, even in UL preamble Specific part (such as symbol) is scrambled by RNTI.When UE competition is to channel access chance, it can first send one section of preamble and be used for Occupy-place, eNB is utilized demodulates the special symbol in corresponding preamble by the RNTI that high-level signaling prenotices each UE respectively, Successfully show that the UE with the special symbol obtains channel access chance if demodulated.

In above-described embodiment, when using the U-band UL DMRS detection technique based on the side eNB, eNB is as far as possible Scheduled multiple UE using identical running time-frequency resource configure mutually different Cyclic shift for DM RS and OCC Index, still, if UE number is greater than the reusing degree (such as 8 of Cyclic shift for DMRS and OCC index field It is a), then at least need to guarantee that difference UE has different Cyclic shift in the UE group of additional time of intercept having the same for DM RS and OCC index；The Cyclic shift for DM RS and OCC that UE between different UE groups has Index can be the same or different, and similarly hereinafter will not be described in great detail.

As shown in fig.2, UE is carried out the detailed process of scheduling of resource in unauthorized frequency range by eNB in the embodiment of the present invention It is as follows:

Step 200:UE is indicated according to base station, obtains the additional time of intercept of base station configuration, wherein UE is divided to by base station One UE group, each UE in a UE group it is scheduled using interference value when identical running time-frequency resource lower than setting Thresholding.

Wherein, it is scheduled and uses identical running time-frequency resource, refer to that multiple UE are scheduled in the time domain using identical for passing The subframe of defeated upstream data is then scheduled on frequency domain and uses identical or different PRB.

First way are as follows: be channel quadrature between each UE that a UE group includes, i.e., between each UE channel that This independence belongs between each UE of same UE group using interference when identical running time-frequency resource in such cases Value must be lower than setting thresholding.

Step 210:UE continues after having executed LBT operation and having obtained channel access chance when additionally listening to accordingly Between correspond to and carry out channel sense in duration, at the end of listening to, execute channel access if still determining channel idle.

Correspondingly, then abandoning this channel access chance if UE at the end of listening to, determines that channel is occupied.

Further, if UE abandons current channel access chance, next time execute LBT operation when, using but Following three kinds of modes are not limited to be handled:

First way are as follows: renew competition channel access chance when from fallback counter=0.

Several concepts are defined in LBT, (chronomere can be equal to 0), when CCA retracts initial latency T1 Gap T2.

LBT general step are as follows:

1) for node when preparing to access channel, one Backoff timer N, N of initialization first is a random number, and maximum Value is no more than Backoff window CW；It is transferred to step 2)

2) node does CCA channel sense, when finding that idle time of channel reaches initial latency T1, is transferred to step 3)

3) node continues to do CCA channel sense, when finding that idle time of channel reaches CCA rollback time slot T2, will retract The value of timer N subtracts 1 (i.e. N--).If N not yet reduces to 0, step 3) is continued to execute；Otherwise, if N value reduces to 0, table Show that node has arrived channel access chance by LBT mechanism successful contention, node can send data.

4) above-mentioned 2) and in 3) step, if node, during CCA, discovery channel is occupied by other node, Step 2) so can be all come back to, i.e., after waiting channel entirely to idle initial latency T1 again, subsequent step could be continued Suddenly.

In above-mentioned steps 1) in, the value of Backoff window CW is also that can change.In general, CW value has a value model It encloses: CW ∈ [minimum Backoff window CWmin, maximum Backoff window CWmas].A kind of common Backoff window CW adjustable strategies are as follows: If node determines to obtain channel access chance and transmission failure in upper primary execution LBT operation, by Backoff window CW value Increase, for example, can be double by CW, i.e. CW:=min { 2*CW, CWmax }., whereas if node determines in upper primary execution When obtaining channel access chance and transmission success when LBT is operated, Backoff window CW value is reset to minimum value, it may be assumed that CW:= CWmin。

The second way are as follows: determine to obtain channel access chance and transmission failure in upper primary execution LBT operation, lay equal stress on New competitive channel accesses chance.

The third mode are as follows: determine to obtain channel access chance and transmission success in upper primary execution LBT operation, lay equal stress on New competitive channel accesses chance.

Therefore, the difference of the second way and the third mode is: being adjusted in LBT mechanism and is retracted using different modes The size of window CW.

Further, UE can also be indicated according to base station, obtain the LBT time of intercept of base station configuration, wherein above-mentioned UE returns The each UE in a UE group belonged to is configured identical LBT time of intercept, that is, each UE in same UE group not only has phase Same additional time of intercept, it may have identical LBT time of intercept.Preferably, when additionally the listening to of base station configuration that UE is obtained Between be less than UE obtain base station configuration common LBT time of intercept (e.g., single ECCA time of intercept).Preferably, it additionally detects Listen the time value can in a discrete time set value, such as: additional time of intercept ∈ [a1, a2, a3 ..., am], In 0≤a1 < a2 < a3 < ... the LBT time of intercept of < am < common.

In the embodiment of the present invention, in order to which interference coordination mechanism between group is better achieved, UE can be used but is not limited to following Several ways obtain the configuration information of the additional time of intercept of eNB notice, specific as follows:

1, UE obtains additional time of intercept configuration information according to the UL DCI that base station is sent.

2, UE first passes through the calculating initial value that high-level signaling obtains the additional time of intercept configuration information of base station notice, and base in advance In the calculating initial value of acquisition, corresponding additional time of intercept configuration information is obtained in conjunction with preset computation rule.Wherein, so-called pre- If the high-level signaling that can be sent by the preparatory base station UE of computation rule obtain, can also be appointed in advance by base station side and terminal side It is fixed.

Preferably, the value based on above-mentioned computation rule additional time of intercept obtained, can be it is relatively-stationary, or Person is changed over time based on setting rule.

It describes in detail separately below.

Under the first scene, the value of additional time of intercept be it is relatively-stationary, this case be usually applied to have spy Determine the scene of priority.Such as, it is assumed that the channel access priority of UE group A is higher than the channel access priority of UE group B, then base station is UE group A configures shorter additional time of intercept.For another example, include the more UE of number UE group it is preferential by higher channel access Grade, then base station is that this kind of UE group configures shorter additional time of intercept.

Additional time of intercept=g (calculating initial value, setup parameter ... ...), wherein g () is based on pseudo random pattern or wheel Ask the setting function of patterns of change；G (x, u1 ...)=av, x be calculate initial value and x ∈ [1,2 ..., m], av ∈ it is preset from Dissipate value interval [a1, a2, a3 ..., am]

For pseudo random pattern, enable g (x, u1)=av, wherein v=[(x+h (u1) -1) mod m]+1, or, person enable g (x, U1, u2)=av, wherein v=[(x+h (d (u1, u2)) -1) mod m]+1, wherein h is preset pseudo-random function, is such as obeyed equal Even distribution, normal distribution or it is other distribution patterns or is to be generated by cyclically shifted sequences, or have Gold sequence Column generate, or have other pseudo-random sequences generations etc.；And d (u1, u2) can be arbitrary function, as d (u1, u2)= U1+u2 or d (u1, u2)=u1*u2 etc..

For poll pattern, g (x, u1)=av is enabled, wherein v=[(x+u1-1) mod m]+1；H is enabled g (x, u1, u2) =av, wherein v=[(x+u1+u2-1) mod m]+1.

When UE carries out DCI search, search space is solved by the g-RNTI that high-level signaling is prenoticed based on base station It disturbs, when determining that descrambling obtains UL DCI, competitive channel accesses chance on the running time-frequency resource of UL DCI instruction；Wherein, above-mentioned UL DCI is that base station is used to that one group of identical running time-frequency resource to be scheduled to multiple UE and used simultaneously, and base station is using above-mentioned g- RNTI scrambles above-mentioned UL DCI.

Based on the above embodiment, as shown in fig.3, in the embodiment of the present invention, base station includes that division unit 30 and scheduling are single Member 31:

Division unit 30, for dividing the scheduled UE using identical running time-frequency resource for multiple UE groups, wherein a UE group Interference value is lower than setting thresholding when each UE for including uses identical running time-frequency resource；

Scheduling unit 31, for being respectively that each UE group configures mutually different additional time of intercept；Wherein, a UE The additional time of intercept that group obtains, all UE being used to indicate in a UE group are executing LBT operation and are obtaining channel access After chance, continuation corresponds in corresponding additional time of intercept and carries out channel sense in duration, at the end of listening to, if still determining letter The road free time then executes channel access.

Preferably, scheduling unit 31 is further used for:

Multiple UE are dispatched using identical running time-frequency resource, i.e., dispatches multiple UE in the time domain using identical and is used for transmission uplink The subframe of data then dispatches multiple UE on frequency domain and uses identical or different PRB.

Preferably, being that channel is non-orthogonal between the different UE groups that division unit 30 divides, channel is nonopiate refer to as Multiple UE of fruit difference UE group use identical running time-frequency resource, then interference value is greater than or equal to setting thresholding.

Preferably, including a UE in the UE group that division unit 30 divides, alternatively, containing at least two UE.

Preferably, scheduling unit 31 is further used for:

Preferably, preset computation rule first passes through high-level signaling by scheduling unit 31 in advance notifies each UE group, alternatively, by Base station side and terminal side are made an appointment.

Preferably, computation rule are as follows:

Preferably, scheduling unit 31 is further used for:

Using a UL DCI, one group of identical running time-frequency resource is scheduled to multiple UE simultaneously and is used, wherein scheduling unit Using preset group of tune scrambling code g-RNTI, UL DCI is scrambled, and g-RNTI is prenoticed into UE by high-level signaling, is enabled UE descrambles search space based on g-RNTI when carrying out DCI search, when determining that descrambling obtains UL DCI, in UL DCI Competitive channel accesses chance on the running time-frequency resource of instruction.

Preferably, scheduling unit 31 is further used for:

After respectively each UE group configures mutually different additional time of intercept, in running time-frequency resource scheduled accordingly Place is respectively adopted the tune scrambling code RNTI in advance for each UE distribution and carries out data de-scrambling, determines and obtain phase using any RNTI After the upstream data answered, determine that the corresponding UE of any RNTI is successfully accessed channel；Alternatively,

After respectively each UE group configures mutually different additional time of intercept, in running time-frequency resource scheduled accordingly Place is respectively adopted the cyclic shift demodulated reference signal OCC index in advance for each UE distribution and is detected, confirmly detected After any cyclic shift demodulated reference signal OCC index, the corresponding UE of any cyclic shift demodulated reference signal OCC index is determined It is successfully accessed channel；Alternatively,

After respectively each UE group configures mutually different additional time of intercept, in running time-frequency resource scheduled accordingly Place is respectively adopted the cyclic shift demodulated reference signal OCC index in advance for each UE distribution and is detected, confirmly detected It is corresponding more for any cyclic shift demodulated reference signal OCC index after any cyclic shift demodulated reference signal OCC index A UE continues to be respectively adopted the RNTI in advance for each UE distribution in multiple UE and carries out data de-scrambling, really at running time-frequency resource Surely after obtaining corresponding upstream data using any RNTI, determine that the corresponding UE of any RNTI is successfully accessed channel；Alternatively,

After respectively each UE group configures mutually different additional time of intercept, in running time-frequency resource scheduled accordingly Place is respectively adopted the tune scrambling code RNTI in advance for each UE distribution and carries out Seize ACK message descrambling, determined and obtained using any RNTI When obtaining the designated symbols in Seize ACK message, determine that the corresponding UE of any RNTI is successfully accessed channel.

Based on the above embodiment, as shown in fig.4, in the embodiment of the present invention, UE includes acquiring unit 40 and access unit 41, wherein

Acquiring unit 40 obtains the additional time of intercept of base station configuration, wherein above-mentioned UE quilt for indicating according to base station Base station is divided to a UE group, and each UE in a UE group is scheduled to use interference value when identical running time-frequency resource Lower than setting thresholding；

Access unit 41, for after having executed LBT operation and having obtained channel access chance, continuation additionally to be detectd accordingly It listens the time to correspond to and carries out channel sense in duration, at the end of listening to, execute channel access if still determining channel idle.

Preferably, above-mentioned UE is scheduled to use identical running time-frequency resource with other UE, characterizes multiple UE and be scheduled in the time domain Using the identical subframe for being used for transmission upstream data, then it is scheduled on frequency domain and uses identical or different PRB.

Preferably, access unit 41 is further used for:

Preferably, be that channel is non-orthogonal between difference UE group, channel is nonopiate refer to if difference UE group it is multiple UE uses identical running time-frequency resource, then interference value is greater than or equal to setting thresholding.

Preferably, acquiring unit 40 is further used for:

It is indicated according to base station, obtains the LBT time of intercept of base station configuration, wherein in a UE group of above-mentioned UE ownership Each UE is configured identical LBT time of intercept.

Preferably, the additional time of intercept for the base station configuration that acquiring unit 40 obtains is less than minimum LBT time of intercept unit.

Preferably, acquiring unit 40 is further used for:

Preferably, preset computation rule is obtained by acquiring unit 40 by the high-level signaling that base station is sent, alternatively, by base It stands side and terminal side is made an appointment.

Preferably, computation rule are as follows:

Preferably, access unit 41 is further used for:

When carrying out DCI search, search space is descrambled by the g-RNTI that high-level signaling is prenoticed based on base station, When determining that descrambling obtains UL DCI, competitive channel accesses chance on the running time-frequency resource of UL DCI instruction；Wherein, UL DCI is base It stands for by one group of identical running time-frequency resource while being scheduled to what multiple UE were used, and g-RNTI is used by base station, to UL DCI is scrambled.

In conclusion in the embodiment of the present invention, base station divides the scheduled UE using identical running time-frequency resource for multiple UE groups, Wherein, interference value is lower than setting thresholding when each UE that a UE group includes uses identical running time-frequency resource, so Afterwards, respectively each UE group configures mutually different additional time of intercept, and each UE in each UE group is executing LBT behaviour After making and obtaining channel access chance, continuation corresponds in corresponding additional time of intercept and carries out channel sense in duration, is listening to At the end of, channel access is executed if still determining channel idle.In this way, can accomplish to enable multiple UE competing simultaneously by 1 scheduling Channel access chance is striven, the interference environment as locating for different UE is different, unlikely all UE of appearance are disturbed The case where obstruction, therefore, the suitable UE that eventually has ready conditions, are successfully accessed channel, transmitting uplink data are carried out, to effectively have Effect, which improves UL, dispatches successfully hit rate, significantly improves the probability of success of UL transmission.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of resource regulating method of the unauthorized frequency range of long term evolution LTE characterized by comprising

The scheduled user equipment (UE) using identical running time-frequency resource is divided into multiple UE groups by base station, wherein a UE group includes Interference value is lower than setting thresholding when each UE uses identical running time-frequency resource；

Base station is respectively that each UE group configures mutually different additional time of intercept；Wherein, what a UE group obtained additionally detects The time is listened, all UE being used to indicate in one UE group are executing listem-before-talk LBT operation and obtaining channel access machine After the meeting, continue to correspond in corresponding additional time of intercept and carry out channel sense in duration, at the end of listening to, if still determining channel It is idle then execute channel access.

2. the method as described in claim 1, which is characterized in that dispatch multiple UE using identical running time-frequency resource, be characterized in time domain Multiple UE are using the identical subframe for being used for transmission upstream data for upper scheduling, then dispatched on frequency domain the multiple UE use it is identical Or different Physical Resource Block PRB.

3. the method as described in claim 1, which is characterized in that be that channel is non-orthogonal between different UE groups, the channel is non- It is orthogonal to refer to if multiple UE of the difference UE group are using identical running time-frequency resource, interference value be greater than or Equal to setting thresholding.

4. the method as described in claim 1, which is characterized in that include a UE in a UE group, alternatively, containing at least two UE。

5. the method as described in claim 1, which is characterized in that further comprise:

Base station is respectively that each UE group configures corresponding LBT time of intercept, wherein belongs to the UE of same UE group with identical LBT time of intercept.

6. the method as described in claim 1, which is characterized in that further comprise:

7. as the method according to claim 1 to 6, which is characterized in that further comprise:

The additional time of intercept configuration information of each UE group is carried in uplink scheduling Downlink Control Information UL DCI by base station, hair Give each UE in corresponding UE group；Alternatively,

Base station first passes through high-level signaling in advance and notifies the calculating initial value of the additional time of intercept configuration information of each UE group to corresponding UE group in each UE, indicate that each UE group is based on obtaining and calculate initial value, obtain corresponding volume in conjunction with preset computation rule Outer time of intercept configuration information.

8. the method for claim 7, which is characterized in that the preset computation rule is first passed through high-rise letter by base station in advance Order notifies each UE group, alternatively, being made an appointment by base station side and terminal side.

9. the method for claim 7, which is characterized in that the computation rule are as follows:

Additional time of intercept=f (calculating initial value), wherein f () is setting function；And f (x) ≠ f (y), if x ≠ y, wherein x, Y is to calculate initial value；Alternatively,

Additional time of intercept=f (calculating initial value), wherein f (x)=ax, x are calculating initial value and x ∈ [1,2 ..., m], ax ∈ are pre- If discrete value interval [a1, a2, a3 ..., am].

10. the method for claim 7, which is characterized in that the computation rule are as follows:

Additional time of intercept=g (calculating initial value, setup parameter ... ...), wherein g () is based on pseudo random pattern or poll mould The setting function of formula variation；And g (x, setup parameter ... ...) ≠ g (y, setup parameter ...), if x ≠ y, x, y are to calculate just Value；Alternatively,

Additional time of intercept=g (calculating initial value, setup parameter ... ...), wherein g () is based on pseudo random pattern or poll mould The setting function of formula variation；G (x, u1 ...)=av, x are to calculate initial value and x ∈ [1,2 ..., m], a_v∈ is preset discrete to be taken Value section [a1, a2, a3 ..., am].

11. as the method according to claim 1 to 6, which is characterized in that further comprise:

Base station uses a UL DCI, and one group of identical running time-frequency resource is scheduled to multiple UE simultaneously and is used, wherein base station uses Preset group of tune scrambling code g-RNTI, scrambles the UL DCI, and the g-RNTI is prenoticed by high-level signaling UE is enabled UE when carrying out DCI search, is descrambled based on the g-RNTI to search space, when determining that descrambling obtains UL DCI, Competitive channel accesses chance on the running time-frequency resource of UL DCI instruction.

12. method as claimed in claim 11, which is characterized in that further comprise:

Base station is respectively after each described UE group configures mutually different additional time of intercept, in time-frequency scheduled accordingly Energy Resources Service is respectively adopted the tune scrambling code RNTI in advance for each UE distribution and carries out data de-scrambling, determined and obtained using any RNTI After obtaining corresponding upstream data, determine that the corresponding UE of any RNTI is successfully accessed channel；Alternatively,

Base station is respectively after each described UE group configures mutually different additional time of intercept, in time-frequency scheduled accordingly Energy Resources Service is respectively adopted the cyclic shift demodulated reference signal OCC index in advance for each UE distribution and is detected, determines inspection After measuring any cyclic shift demodulated reference signal OCC index, any cyclic shift demodulated reference signal OCC index is determined Corresponding UE is successfully accessed channel；Alternatively,

Base station is respectively after each described UE group configures mutually different additional time of intercept, in time-frequency scheduled accordingly Energy Resources Service is respectively adopted the cyclic shift demodulated reference signal OCC index in advance for each UE distribution and is detected, determines inspection After measuring any cyclic shift demodulated reference signal OCC index, for any cyclic shift demodulated reference signal OCC index Corresponding multiple UE continue to be respectively adopted in advance at the running time-frequency resource as each UE distribution in the multiple UE RNTI carries out data de-scrambling, determines after obtaining corresponding upstream data using any RNTI, determines that any RNTI is corresponding UE is successfully accessed channel；Alternatively,

Base station is respectively after each described UE group configures mutually different additional time of intercept, in time-frequency scheduled accordingly Energy Resources Service is respectively adopted the tune scrambling code RNTI in advance for each UE distribution and carries out Seize ACK message descrambling, determines using any When RNTI obtains the designated symbols in Seize ACK message, determine that the corresponding UE of any RNTI is successfully accessed channel.

13. a kind of resource using method of the unauthorized frequency range of long term evolution LTE characterized by comprising

User terminal UE is indicated according to base station, obtains the additional time of intercept of base station configuration, wherein the UE is divided to by base station One UE group, each UE in one UE group it is scheduled using interference value when identical running time-frequency resource lower than setting Determine thresholding, the additional time of intercept that each UE group obtains is different；

The UE continues after having executed listem-before-talk LBT operation and having obtained channel access chance when additionally listening to accordingly Between correspond to and carry out channel sense in duration, at the end of listening to, execute channel access if still determining channel idle.

14. method as claimed in claim 13, which is characterized in that it is scheduled to use identical running time-frequency resource, it characterizes multiple UE and exists It is scheduled in time domain and uses the identical subframe for being used for transmission upstream data, be then scheduled on frequency domain using identical or different Physical Resource Block PRB.

15. method as claimed in claim 13, which is characterized in that further comprise:

16. method as claimed in claim 13, which is characterized in that it is that channel is non-orthogonal between different UE groups, the channel It is nonopiate to refer to that interference value is greater than if multiple UE of the difference UE group are using identical running time-frequency resource Or it is equal to setting thresholding.

17. method as claimed in claim 13, which is characterized in that include a UE in a UE group, alternatively, including at least two A UE.

18. method as claimed in claim 13, which is characterized in that further comprise:

UE is indicated according to base station, obtains the LBT time of intercept of base station configuration, wherein each in a UE group of the UE ownership A UE is configured identical LBT time of intercept.

19. method as claimed in claim 13, which is characterized in that further comprise:

20. such as the described in any item methods of claim 13-19, which is characterized in that further comprise:

UE obtains additional time of intercept configuration information according to the uplink scheduling Downlink Control Information UL DCI that base station is sent；Alternatively,

UE first passes through the calculating initial value that high-level signaling obtains the additional time of intercept configuration information of base station notice in advance, and based on acquisition Initial value is calculated, obtains corresponding additional time of intercept configuration information in conjunction with preset computation rule.

21. method as claimed in claim 20, which is characterized in that the preset computation rule was sent by UE by base station High-level signaling obtains, alternatively, being made an appointment by base station side and terminal side.

22. method as claimed in claim 20, which is characterized in that the computation rule are as follows:

Additional time of intercept=f (calculating initial value), wherein f (x)=a_x, x is to calculate initial value and x ∈ [1,2 ..., m], a_x∈ is pre- If discrete value interval [a1, a2, a3 ..., am].

23. method as claimed in claim 20, which is characterized in that the computation rule are as follows:

Additional time of intercept=g (calculating initial value, setup parameter ... ...), wherein g () is based on pseudo random pattern or poll mould The setting function of formula variation；G (x, u1 ...)=av, x are to calculate initial value and x ∈ [1,2 ..., m], av ∈ are preset discrete takes Value section [a1, a2, a3 ..., am].

24. such as the described in any item methods of claim 13-19, which is characterized in that further comprise:

When UE carries out DCI search, the group tune scrambling code g-RNTI that is prenoticed based on base station by high-level signaling to search space into Row descrambling, when determining that descrambling obtains UL DCI, competitive channel accesses chance on the running time-frequency resource of UL DCI instruction；Its In, the UL DCI is that base station is used for one group of identical running time-frequency resource while being scheduled to multiple UE and use, and by base station Using the g-RNTI, the UL DCI is scrambled.

25. a kind of resource scheduling device of the unauthorized frequency range of long term evolution LTE characterized by comprising

Division unit, for the scheduled user equipment (UE) using identical running time-frequency resource to be divided into multiple UE groups, wherein a UE Interference value is lower than setting thresholding when each UE that group includes uses identical running time-frequency resource；

Scheduling unit, for being respectively that each UE group configures mutually different additional time of intercept；Wherein, a UE group obtains Additional time of intercept, all UE being used to indicate in one UE group executing listem-before-talk LBT operation and believed After road accesses chance, continuation corresponds in corresponding additional time of intercept and carries out channel sense in duration, at the end of listening to, if still Determine that channel idle then executes channel access.

26. device as claimed in claim 25, which is characterized in that the scheduling unit is further used for:

Multiple UE are dispatched using identical running time-frequency resource, i.e., dispatches multiple UE in the time domain using identical and is used for transmission upstream data Subframe, the multiple UE is then dispatched on frequency domain using identical or different Physical Resource Block PRB.

27. device as claimed in claim 25, which is characterized in that be channel between the different UE groups that the division unit divides Non-orthogonal, the channel is nonopiate to be referred to if multiple UE of the difference UE group use identical running time-frequency resource, that Interference value between this is greater than or equal to setting thresholding.

28. device as claimed in claim 27, which is characterized in that include one in the UE group that the division unit divides UE, alternatively, containing at least two UE.

29. device as claimed in claim 25, which is characterized in that the scheduling unit is further used for:

Respectively each UE group configures corresponding LBT time of intercept, wherein the UE for belonging to same UE group is having the same LBT time of intercept.

30. device as claimed in claim 25, which is characterized in that the scheduling unit is further used for:

31. such as the described in any item devices of claim 25-30, which is characterized in that the scheduling unit is further used for:

The additional time of intercept configuration information of each UE group is carried in uplink scheduling Downlink Control Information UL DCI, is sent to Each UE in corresponding UE group；Alternatively,

High-level signaling is first passed through in advance to notify the calculating initial value of the additional time of intercept configuration information of each UE group to corresponding UE Each UE in group indicates that each UE group is based on obtaining and calculates initial value, additionally detects accordingly in conjunction with the acquisition of preset computation rule Listen time configuration information.

32. device as claimed in claim 31, which is characterized in that the preset computation rule is preparatory by the scheduling unit Each UE group is notified by high-level signaling, alternatively, being made an appointment by described device and terminal side.

33. device as claimed in claim 31, which is characterized in that the computation rule are as follows:

34. device as claimed in claim 31, which is characterized in that the computation rule are as follows:

35. such as the described in any item devices of claim 25-30, which is characterized in that the scheduling unit is further used for:

Using a UL DCI, one group of identical running time-frequency resource is scheduled to multiple UE simultaneously and is used, wherein the scheduling unit Using preset group of tune scrambling code g-RNTI, the UL DCI is scrambled, and the g-RNTI is preparatory by high-level signaling It notifies UE, enables UE when carrying out DCI search, search space is descrambled based on the g-RNTI, determine that descrambling obtains UL When DCI, competitive channel accesses chance on the running time-frequency resource of UL DCI instruction.

36. device as claimed in claim 35, which is characterized in that the scheduling unit is further used for:

After each respectively described UE group configures mutually different additional time of intercept, in running time-frequency resource scheduled accordingly Place is respectively adopted the tune scrambling code RNTI in advance for each UE distribution and carries out data de-scrambling, determines and obtain phase using any RNTI After the upstream data answered, determine that the corresponding UE of any RNTI is successfully accessed channel；Alternatively,

After each respectively described UE group configures mutually different additional time of intercept, in running time-frequency resource scheduled accordingly Place is respectively adopted the cyclic shift demodulated reference signal OCC index in advance for each UE distribution and is detected, confirmly detected After any cyclic shift demodulated reference signal OCC index, determine that any cyclic shift demodulated reference signal OCC index corresponds to UE be successfully accessed channel；Alternatively,

After each respectively described UE group configures mutually different additional time of intercept, in running time-frequency resource scheduled accordingly Place is respectively adopted the cyclic shift demodulated reference signal OCC index in advance for each UE distribution and is detected, confirmly detected After any cyclic shift demodulated reference signal OCC index, corresponded to for any cyclic shift demodulated reference signal OCC index Multiple UE, at the running time-frequency resource, continue to be respectively adopted in advance for the RNTI of each UE distribution in the multiple UE into Row data de-scrambling determines after obtaining corresponding upstream data using any RNTI, determines the corresponding UE success of any RNTI Access channel；Alternatively,

After each respectively described UE group configures mutually different additional time of intercept, in running time-frequency resource scheduled accordingly Place is respectively adopted the tune scrambling code RNTI in advance for each UE distribution and carries out Seize ACK message descrambling, determined and obtained using any RNTI When obtaining the designated symbols in Seize ACK message, determine that the corresponding UE of any RNTI is successfully accessed channel.

37. a kind of resource use device of the unauthorized frequency range of long term evolution LTE characterized by comprising

Acquiring unit obtains the additional time of intercept of base station configuration, wherein described device is by base station for indicating according to base station It is divided to a UE group, each UE in one UE group is scheduled to use interference value when identical running time-frequency resource Lower than setting thresholding, the additional time of intercept that each UE group obtains is different；

Access unit, for continuing corresponding additional after having executed listem-before-talk LBT operation and having obtained channel access chance Time of intercept, which corresponds to, carries out channel sense in duration, at the end of listening to, execute channel access if still determining channel idle.

38. device as claimed in claim 37, which is characterized in that described device is scheduled to be provided with other UE using identical time-frequency Source characterizes multiple UE and is scheduled in the time domain using the identical subframe for being used for transmission upstream data, is then scheduled on frequency domain Use identical or different Physical Resource Block PRB.

39. device as claimed in claim 37, which is characterized in that the access unit is further used for:

40. device as claimed in claim 37, which is characterized in that it is that channel is non-orthogonal between different UE groups, the channel It is nonopiate to refer to that interference value is greater than if multiple UE of the difference UE group are using identical running time-frequency resource Or it is equal to setting thresholding.

41. device as claimed in claim 40, which is characterized in that include a UE in a UE group, alternatively, including at least two A UE.

42. device as claimed in claim 37, which is characterized in that the acquiring unit is further used for:

It is indicated according to base station, obtains the LBT time of intercept of base station configuration, wherein is in a UE group of described device ownership each A UE is configured identical LBT time of intercept.

43. device as claimed in claim 37, which is characterized in that the base station configuration that the acquiring unit obtains additionally is listened to Time is less than minimum LBT time of intercept unit.

44. such as the described in any item devices of claim 37-43, which is characterized in that the acquiring unit is further used for:

Additional time of intercept configuration information is obtained according to the uplink scheduling Downlink Control Information UL DCI that base station is sent；Alternatively,

The calculating initial value that high-level signaling obtains the additional time of intercept configuration information of base station notice is first passed through in advance, and based on obtaining Initial value is calculated, obtains corresponding additional time of intercept configuration information in conjunction with preset computation rule.

45. device as claimed in claim 44, which is characterized in that the preset computation rule is passed through by the acquiring unit The high-level signaling that base station is sent obtains, alternatively, being made an appointment by base station side and described device.

46. device as claimed in claim 44, which is characterized in that the computation rule are as follows:

47. device as claimed in claim 44, which is characterized in that the computation rule are as follows:

48. such as the described in any item devices of claim 37-43, which is characterized in that the access unit is further used for:

When carrying out DCI search, search space is carried out by the group tune scrambling code g-RNTI that high-level signaling is prenoticed based on base station Descrambling, when determining that descrambling obtains UL DCI, competitive channel accesses chance on the running time-frequency resource of UL DCI instruction；Wherein, The UL DCI is that base station is used for one group of identical running time-frequency resource while being scheduled to multiple UE and use, and is used by base station The g-RNTI scrambles the UL DCI.