CN106455000A - Method and device of realizing uplink access - Google Patents
Method and device of realizing uplink access Download PDFInfo
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- CN106455000A CN106455000A CN201510487574.0A CN201510487574A CN106455000A CN 106455000 A CN106455000 A CN 106455000A CN 201510487574 A CN201510487574 A CN 201510487574A CN 106455000 A CN106455000 A CN 106455000A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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Abstract
The invention discloses a method of realizing uplink access on a base station end. The method comprises steps that a plurality of user terminals to be connected with the base station end are divided into a plurality of access groups; corresponding frequency spectrum resources are allocated to every access group, and in each access group, the same frequency spectrum resource is allocated to every user terminal; in each access group, an initial clear channel assessment iCCA boundary and a transmission boundary are allocated to every user terminal, and the iCCA boundary of every user terminal is disposed on an ending boundary in a corresponding time slot; the information of the corresponding frequency spectrum resource, the information of the corresponding iCCA boundary, and the information of the corresponding transmission boundary are transmitted to every user terminal. The iCCA boundaries and the transmission boundaries are dynamically provided for the user terminals explicitly or implicitly, and can be configured by high level signaling in a semi-static way. The invention also discloses a method and a device of realizing the uplink access on the user terminals.
Description
Technical field
Embodiment of the disclosure is related to wireless communication field, in particular it relates to realize in base station end
The method of multi-upstream access and its device and method and its dress of realizing multi-upstream access in user side
Put.
Background technology
Having agreed in the 78th meeting of RAN1 will " session after first monitoring " (LBT：
Listen-Before-Talk) as a kind of necessary identification function, to meet the right of some regions
The management and control demand of unauthorized frequency range, for example, Europe, for LAA system.According to LBT's
Require, user should implement idle channel and comment before implementing uplink on undelegated carrier wave
Estimate (CCA：Clear Channel Assessment).
Compared with operation with existing enforcement, the master of the uplink implemented on undelegated carrier wave
Distinguish and be：Before transmission PUSCH in LAA system, need to implement in transmitting pusher side
LBT.In this case, pass through PDCCH success from the cell that it runs in user side
After receiving uplink authorization, only when user side successfully confirms CCA, uplink just can start.
Accordingly, there exist a risk, that is,：User side finds channel busy and can not transmit PUSCH.
This situation will increase time delay, reduce resource utilization and make base station run complexity.Additionally,
In LTE, multiple user sides can be scheduled in a subframe.If some users can not become
The acquisition channel of work(, other nodes (for example, adjacent WIFI access point) can perceive this
Channel is in idle condition, is then attempt to using this channel.Up biography therefore can be led to
Contribute bears huge interference because of the data transfer of neighbouring competition node.
May be with the utilization rate of ascending resource it is necessary to strengthen in order to increase the transmission of each user uplink
The LBT process of existing uplink scheduling authorization and the uplink on unauthorized carrier wave.
For up-LBT, due to more less than the perceptron meeting of WIFI system, based on FBE
The LBT of (Frame Based Equipment) is difficult to access with WIFI competitive channel.Some
Simulation result show have the LBT based on FBE LAA uplink user throughput ratio other
The low 50%-75% of WIFI network.Nearest 4th class LBT has attracted for up in LAA
More research interests of transmission.In R1-153664, if node determines in eCCA mistake
Do not implement after journey to transmit, as shown in figure 1, it allows that base station is back to idle condition.Work as section
When point determines transmission, only pass through the availability that an extra iCCA checks channel.This meaning
Taste node and be may be in self delaying state, even and if this node have been completed
ECCA process, it can not also implement to transmit.
Based on above-mentioned 2 points, embodiment of the disclosure propose one new have staggered
The up LBT algorithm accessing, this algorithm is designed to increase user side in undelegated carrier wave
On the chance of uplink and improve the utilization rate of resource.
Content of the invention
For this reason, the first aspect of the disclosure provides one kind for realizing multi-upstream access in base station end
Method, including：Multiple user sides of base station end to be accessed to described are divided into multiple access groups；
Access component for each and join corresponding frequency spectrum resource, wherein in each access group described, for every
Individual user side distributes identical frequency spectrum resource；In each access group, for the configuration of each user side
Initial idle channel estimating iCCA border and transmission border, the wherein iCCA of each user side
Border is configured in the end boundary of different time-gap；And it is right to the transmission of each user side
The information of the frequency spectrum resource, iCCA border and transmission border answered.
In one embodiment, multiple user sides of base station end to be accessed to described are divided into multiple
Access group includes：According to the first pre-defined rule, by multiple users of base station end to be accessed to described
End is divided into multiple access groups；Wherein said first pre-defined rule is：Each in each access group
User side can be measured that the preserved signal that the other users end in described access group is sent.
In one embodiment, multiple user sides of base station end to be accessed to described are divided into multiple
Access group includes：According to the second pre-defined rule, by multiple users of base station end to be accessed to described
End is divided into multiple access groups；Wherein said second pre-defined rule is：Each in each access group
User side can be measured that the preserved signal that the other users end in described access group is sent, and
And the user being in disturbance environment is divided into one group.
In one embodiment, wherein in same access group, the transmission border of each user side
Position in time domain is identical.
In one embodiment, wherein in same access group, the transmission border of each user side
Multiple correspondence positions are had on time domain, the position on the transmission border wherein between different user end respectively
Put and be offset from each other.
In one embodiment, wherein in same access group, the iCCA side of each user side
Boundary has multiple correspondence positions in time domain respectively, the position on wherein said iCCA border and described
The position on transmission border is identical.
The second aspect of the disclosure provides a kind of method realizing multi-upstream access in user side, bag
Include：I. obtain and distribute to the information of the frequency spectrum resource of access group that described user side belonged to and join
Put the information on the initial idle channel estimating iCCA border to described user side and transmission border；
II. when the qualified and described frequency spectrum resource of the clear channel assessment (CCA) of unauthorized frequency range is in described use
The other users end that family end starts to send in the access group not belonged to before upstream data accounts for
Used time, preserved signal is sent on described frequency spectrum resource to take described frequency spectrum resource and real
The transmission of existing upstream data.
In one embodiment, wherein, the described initial idle channel being allocated to described user side
The information on assessment iCCA border and transmission border obtains from the signaling that base station end sends, or
Obtain from predefined specification.
In one embodiment, wherein when described transmission border is in the time domain of described frequency spectrum resource
When being configured on a fixed position, step II includes：II-1. on described iCCA border
Before position, implement extension clear channel assessment (CCA) eCCA；II-1-1. when on described iCCA side
When completing described extension clear channel assessment (CCA) before the position on boundary, confirm the end side of current time slots
Whether boundary is located on described iCCA border：If the II-1-1-1. end side of described current time slots
Boundary is located on described iCCA border, then send preserved signal on described frequency spectrum resource；II-1-1-2.
If the end boundary of described current time slots is not located on described iCCA border, described user
End enters delaying state, and implements initial idle channel estimating on iCCA time slot afterwards；
When described initial idle channel estimating is qualified and is not detected by preserved signal, then described
Preserved signal is sent on frequency spectrum resource；When described initial idle channel estimating is unqualified or detects
During preserved signal, terminate described user uplink and access；II-1-2. when on described iCCA border
When can not complete described extension clear channel assessment (CCA) before position, terminate described user uplink and connect
Enter；II-2., on described frequency spectrum resource, start to send upper line number from the position on described transmission border
According to.
In one embodiment, wherein when described transmission border is in the time domain of described frequency spectrum resource
When being configured for multiple position, step II includes II-1. detecting in described access group other use
Before the preserved signal that family end sends, implement extension clear channel assessment (CCA) eCCA；II-1-1. when
Completed described before detecting the preserved signal that in described access group, other users end sends
During extension clear channel assessment (CCA), confirm whether the end boundary of current time slots is located at described iCCA
On border：If II-1-1-1. the end boundary of described current time slots is located at described iCCA border
On, then preserved signal is sent on the next time slot of described frequency spectrum resource；If II-1-1-2.
The end boundary of described current time slots is not located on described iCCA border, then described user side enters
Enter delaying state, and initial idle channel estimating is implemented on iCCA time slot afterwards；Work as institute
State initial idle channel estimating qualified when, then on described frequency spectrum resource send preserved signal；When
When described initial idle channel estimating is unqualified, terminates described user uplink and access；II-1-2. when
It is impossible to complete institute before detecting the preserved signal that in described access group, other users end sends
When stating extension clear channel assessment (CCA), terminate described user uplink and access；II-2. provide in described frequency spectrum
On source, second time slot after the position on described transmission border starts to send upstream data.
In one embodiment, wherein when described user side detected before sending preserved signal
During the preserved signal that the other users end in described access group sends, terminate described user uplink and connect
Enter.
The third aspect of the disclosure provides a kind of dress for realizing multi-upstream access in base station end
Put, including：Grouped element, for being divided into multiple user sides of base station end to be accessed to described
Multiple access groups；Frequency spectrum allocation unit, joins corresponding frequency spectrum resource for accessing component for each,
Wherein in each access group described, distribute identical frequency spectrum resource for each user side；Border
Setup unit, for, in each access group, commenting for each user side configuration initial idle channel
Estimate iCCA border and transmission border, the iCCA border of wherein each user side is configured to position
In the end boundary of different time-gap；And transmitting element, right for sending to each user side
Frequency spectrum resource, iCCA border and the transmission boundary information answered.
In one embodiment, wherein in same access group, the transmission border of each user side
Position in time domain is identical.
In one embodiment, wherein in same access group, the transmission border of each user side
Multiple correspondence positions are had on time domain, the position on the transmission border wherein between different user end respectively
Put and be offset from each other.
The fourth aspect of the disclosure provides a kind of device realizing multi-upstream access in user side, bag
Include：Receiving unit, obtains and distributes to the frequency spectrum resource of access group that described user side is belonged to
Information and the initial idle channel estimating iCCA border and the transmission border that are allocated to described user side
Information；Multi-upstream access unit, for when the clear channel assessment (CCA) of described unlicensed spectrum is qualified,
And described frequency spectrum resource was not belonged to before described user side starts to send upstream data
Access group in other users end take when, implement multi-upstream access.
In one embodiment, described multi-upstream access unit includes：Location confirmation module, is used for
Confirm the described transmission border and/or iCCA border position in time domain, and current time slots
Position；Counting module, for the qualified number of times of computation-free channel estimating；Channel estimation module,
For implementing clear channel assessment (CCA) CCA and initial idle channel estimating iCCA；Delaying state mould
Block, is used for making described user side enter delaying state；Detecting module, for implementing preserved signal
Detecting to determine whether the preserved signal that other users end in access group belonging to it sends.
Scheme in accordance with an embodiment of the present disclosure can increase the access chance of uplink, and
Improve the utilization rate of unauthorized carrier wave.
Brief description
By reading retouching in detail with reference to being made to non-limiting example of being made of the following drawings
State, the other features, objects and advantages of the disclosure will become more apparent：
Fig. 1 shows the time slot schematic diagram of the LBT of the 4th class with self delay；
Fig. 2 shows the method flow for realizing multi-upstream access in accordance with an embodiment of the present disclosure
Schematic diagram；
Fig. 3 shows the device realizing multi-upstream access in base station end in accordance with an embodiment of the present disclosure
Module map；
Fig. 4 shows the device realizing multi-upstream access in user side in accordance with an embodiment of the present disclosure
Module map；
Fig. 5 disclose in accordance with an embodiment of the present disclosure for realizing multi-upstream access in base station end
Method flow diagram；
Fig. 6 disclose in accordance with an embodiment of the present disclosure for realizing multi-upstream access in base station end
Method flow diagram.
Fig. 7 shows the user under the transmission border condition of fixation in accordance with an embodiment of the present disclosure
End time slot schematic diagram；And
Fig. 8 shows the user under dynamic transmission border condition in accordance with an embodiment of the present disclosure
End time slot schematic diagram.
Specific embodiment
In the specific descriptions of following preferred embodiment, by with reference to a composition disclosure part
Appended accompanying drawing.Appended accompanying drawing has been illustrated by way of example the spy being capable of the disclosure
Fixed embodiment.The embodiment of example is not intended as all embodiments according to the disclosure for the limit.
It is appreciated that on the premise of without departing from the scope of the present disclosure, it is possible to use other embodiment,
Structural or logicality modification can also be carried out.Therefore, specific descriptions below not limit
Property processed, and the scope of the present disclosure is defined by the claims appended hereto.Although additionally, explanation
The step describing method in book in a particular order, but this does not require that or implies necessary
To execute these operations according to this particular order, or to have to carry out all shown operation ability
Realize desired result, on the contrary, the step of description can change execution sequence.Additionally or standby
Selection of land, it is convenient to omit some steps, multiple steps are merged into a step execution, and/or will
One step is decomposed into execution of multiple steps.
Embodiment of the disclosure disclose a kind of meet the 4th class LBT there is LBT process
The scheme of multi-upstream access, the program can increase the access chance of uplink and improving and not award
The utilization rate of power carrier wave.We introduce the basic ideas of embodiment of the disclosure first below.
First, in embodiment of the disclosure, base station will configure transmission border for each user side.
In embodiment of the disclosure, each user side is independently implemented for unauthorized carrier wave
Up LBT process.Base station end can be complete based on the user side estimating for requirement
Become the time quantum of the wait needed for enhanced clear channel assessment (CCA) (eCCA), determine user side
The possible starting position of uplink, and configure transmission border for this user side.Wherein should
Transmission border indicates the possible starting position of this user side uplink in the time domain.Referring to
Fig. 1, completes enhanced clear channel assessment (CCA) mistake if user side is before this transmission border
Journey, then this user side can switch to self delaying state, and before transmission border
Initial idle channel estimating (iCCA) is implemented on time slot with the availability of acknowledgement channel again.
Generally, clear channel assessment (CCA) CCA needs to implement repeatedly, only in the conjunction of specific times
This clear channel assessment (CCA) just can be considered as after lattice assessment implement to complete that (eCCA can be considered to be
The combination of multiple CCA).This specific times can pass through random back (Back-off
Counter) value to be representing, that is,：If this random back value is random to be 5, idle channel is commented
Estimate and need to implement 5 times, when the result of once clear channel assessment (CCA) is qualified, this value subtracts
1.When this value is 0, illustrate successfully to implement 5 qualified clear channel assessment (CCA)s,
This clear channel assessment (CCA) completes.
In embodiment of the disclosure, if user corrected before transmission border, this is random
Backoff value is reduced to 0, then user side need not switch to self delaying state, also need not implement just
Beginning clear channel assessment (CCA).
In embodiment of the disclosure, transmission border can be believed by, for example, uplink scheduling authorization
Order, is dynamically informed to user side in the way of expressing or implying.Additionally, transmission border
Can semi-statically be configured by high-level signaling, or predefined in specification.Such as conduct
One or more function of user side mark (such as C-RNTI, subframe index etc.).
Secondly, in embodiment of the disclosure, base station is multiple by base station end to be accessed to described
User side is divided into multiple access groups, and distributes a frequency spectrum resource for this access group.
In the prior art, base station is that the user side that each needs to access to base station end distributes one
Frequency spectrum resource, but if this user side because some reasons cannot access to this base station end when, should
Allocated frequency spectrum resource will be wasted.To this embodiment of the disclosure by multiple to be accessed to institute
The multiple user sides stating base station end are divided into multiple access groups, are respectively provided with multiple in each access group
Need to access to the user side of described base station, so that multiple user side competition same frequency spectrum money
Source.By this setting so that when the certain user end in this group cannot using this frequency spectrum resource when,
Other users end in this group can be carried out data transmission using this frequency spectrum resource.
Packet for user side can be implemented based on some pre-defined rules.Due in same group
User side need to perceive mutually the data is activation state of other side, to avoid because simultaneously using above-mentioned
Identical frequency spectrum resource and the data collision that causes, therefore can specify that each in this pre-defined rule
Each user side in access group can be measured that the other users end in described access group is sent out
The signal sending.This signal can include data signal or preserved signal, and wherein preserved signal refers to
User side sends to other users end in access group belonging to it, and is used for having represented this user side
Through taking the signal of the frequency spectrum resource corresponding to this access group.Additionally, also may be used in this pre-defined rule
With further provide for by be respectively at user side in different interference environments as far as possible be divided into one group,
Thus increasing the multiformity of sensing results.The multiformity of sensing results may insure user side in group
Clear channel assessment result always not consistent, thus improving the utilization rate of frequency spectrum resource.
3rd, in order to avoid the user side in same access group occurs transmission collision, in the disclosure
Embodiment in, base station be each user side configure an initial idle channel estimating border
(iCCA border).In same access group, the iCCA border of each user side is configured to
In the end boundary of different time-gap, that is,：The iCCA border of each user side is staggered.
It is appreciated that successfully implement initial idle channel if there are multiple user sides comment simultaneously
Estimate, then they can implement transmitting uplink data using this frequency spectrum resource, thus causing to count
According to transmission collision.In order to avoid the generation of this problem, in embodiment of the disclosure, each
In access group, the iCCA border of each user side is staggered setting, so that each user side
Implement iCCA on different time slots, therefore avoid multiple user sides and successfully implement simultaneously
Initial idle channel estimating.
In each access group, in order to increase the probability of user side multi-upstream access, in time domain
Multiple iCCA borders and/or multiple transmission border can be configured for each user side.Or in order to
Reduce the LBT synchronicity in the expense of monitoring signaling and improvement multicarrier of user side, also may be used
Think that each user side configures iCCA border and/or the transmission border of a fixation.
4th, in order to avoid the generation of transmission collision, embodiment of the disclosure also includes one in advance
Stay signal (for example, preamble).After the iCCA success of user side, this preserved signal
Sent, to have informed this user side to the other users end in access group belonging to this user side
Occupy this frequency spectrum resource.
The function of this preserved signal at least includes one or more of described below：
- make a reservation for for channel；
- by the frequency spectrum resource corresponding to access group is can be identified to the detecting of preserved signal
Shared by user side in the no group by access；
- for the user side belonging to different access groups, by permissible to the detecting of preserved signal
Revise the result of CCA energy measuring.(otherwise because component frequency resource is connect by difference in cell
Enter shared by the user side of group, the user side of different access groups cannot successful implementation measuring energy)；
- for base station, the detecting of preserved signal can be used for identifying opening of preserved signal
The starting position of beginning position data transmission, and the uplink frame that therefore identification transmitter is used
Structure
- in order to be grouped, base station can configure the user side measurement that it is serviced and report it not
The signal condition being detected is authorized on carrier wave.
Based on above invention thinking, we will be implemented in combination with we by specific example below
The device of case is discussed in detail a kind of method for realizing multi-upstream access disclosed in the disclosure.
Fig. 2 discloses the method flow for realizing multi-upstream access in accordance with an embodiment of the present disclosure
Schematic diagram.The method can be by base station side for realizing device 300 and the user of multi-upstream access
The device 400 (400 ') for realizing multi-upstream access of side to be realized.As shown in figure 3, should
The device 300 for realizing multi-upstream access of base station side includes receiving unit 301, grouped element
302nd, frequency spectrum allocation unit 303, border setup unit 304 and transmitting element 305.As Fig. 4
Shown, the device 400 for realizing multi-upstream access of user side includes：Transmitting element 401,
Multi-upstream access unit 402 and receiving unit 403, wherein multi-upstream access unit 402 include:Position
Confirm module, it is used for confirming the described transmission border and/or iCCA border position in time domain
Put, and the position of current time slots；Counting module, it is used for the conjunction of computation-free channel estimating
Lattice number of times；Channel estimation module, it is used for implementing clear channel assessment (CCA) CCA and initial idle
Channel estimating iCCA；Delaying state module, it is used for making described user side enter delaying state；
Detecting module, for implementing the detecting of preserved signal to determine whether in access group belonging to it
The preserved signal that his user side sends.
Fig. 5,6 it is method flow schematic diagram shown in Fig. 2 respectively in base station end and user side
Method flow diagram.
In step 202., the grouped element 302 in base station 300 is by base station to be accessed to described
Multiple user sides at end, such as user side 400,400 ' etc., (though it is to be noted that in Fig. 2
So illustrate only two user sides, but the quantity of user side is not limited only to 2, and can be more
Many) it is divided into multiple access groups, wherein, this packet can be implemented according to certain pre-defined rule.
In a specific embodiment, this pre-defined rule can include：In each access group
Each user side can be measured that the reserved letter that the other users end in described access group is sent
Number.In another specific embodiment, this pre-defined rule can include：To be in not as far as possible
Assign to one group with the user side in interference environment to increase the multiformity of sensing results.
In step 203, the group result based on grouped element 302, frequency spectrum allocation unit 303
It is respectively allocated corresponding frequency spectrum resource for each access group.
In step 204, the group result based on grouped element 302, border setup unit 304
For each user side configuration initial idle channel estimating iCCA border and transmission border.Wherein,
For each access group, in group the iCCA border of each user side be configured to positioned at difference when
In the end boundary of gap.
There are in embodiment of the disclosure two kinds of setting means for transmission border, that is,：Gu
Fixed transmission border sets and dynamic transmission border sets.
Fig. 7 shows user side when having fixing transmission border in accordance with an embodiment of the present disclosure
Time slot schematic diagram.In this setting, for same access group, the transmission side of each user side
Position in time domain for the boundary is identical.As shown in the figure in this example, the iCCA of user side 1
Border is arranged on the position of 2 time slots before transmission border；The iCCA of user side 2
Position be arranged to transmission border before 1 time slot position on；User side 3
The position of iCCA is arranged to and transmits on the identical position of border.
Fig. 8 shows user side when having dynamic transmission border in accordance with an embodiment of the present disclosure
Time slot schematic diagram.In this setting, for same access group, the transmission side of each user side
Boundary has multiple correspondence positions in time domain respectively, the transmission border wherein between different user end
Position is offset from each other.Accordingly, the iCCA border of each user side is also divided in time domain
There are not multiple correspondence positions, the position on the position on wherein said iCCA border and described transmission border
Put identical (coincidence).As shown in the figure in this example, each user side is at interval of 3 time slots just
It is provided with an iCCA border and transmission border.This interval can be according to the user side in access group
Setting, such as in group, number of users is n to quantity, and this is just provided with one at interval of n time slot
ICCA border and transmission border.
In step 205, transmitting element 305 sets list from frequency spectrum allocation unit 303 and border
The corresponding frequency spectrum resource of each user side, iCCA border and transmission side is obtained respectively in unit 304
Boundary, and corresponding frequency spectrum money is sent to each user side 400,400 ' by configured information
Source, iCCA border and transmission border.Wherein this configured information can be uplink authorization instruction letter
Breath.
Corresponding, the receiving unit 403 of user side, receive corresponding with this user side from base station end
Distribute to this user side ownership the frequency spectrum resource of access group, be allocated to described user side just
Beginning clear channel assessment (CCA) iCCA border and transmission border.
In another specific embodiment, the receiving unit 403 of this user side can also be from predetermined
Justice specification in obtain be allocated to described user side initial idle channel estimating iCCA border and
Transmission border.
In step 206, the multi-upstream access unit 402 in each user side 400,400 ',
Result according to the clear channel assessment (CCA) to this frequency spectrum resource and the occupancy situation of this frequency spectrum resource,
Implement multi-upstream access.
Referring to Fig. 7, in a specific embodiment, when described transmission border is located at described frequency spectrum
On a fixed position in the time domain of resource (i.e.：Fixing transmission border sets) when.Step
Rapid 206 specifically include following steps：
Location confirmation module confirms the described transmission border and iCCA border position in time domain.
Then before the position on this iCCA border, implemented the conjunction of specific times by channel estimation module
The clear channel assessment (CCA) of lattice, this specific times is determined by random back value.In multi-upstream access unit
Including counting module for counting this qualified number of times.As shown in fig. 7, needing the conjunction completing
Lattice number of times is expressed as n, and often qualified once this value subtracts 1.
The qualified free time of specific times can not be completed before the position on described iCCA border
During channel estimating, terminate the multi-upstream access process (user side in such as Fig. 7 of described user side
1).
The qualified free time of specific times can be completed before the position on described iCCA border
During channel estimating, it is described that location confirmation module confirms whether the end boundary of current time slots is located at
On iCCA border：
If the end boundary of-current time slots is located on described iCCA border, by sending out
Unit 401 is sent preserved signal to be sent on described frequency spectrum resource to take this frequency spectrum resource, and
Transmission boundary position starts to send upstream data.
If the end boundary of-current time slots is not located on described iCCA border (i.e.：Should
ICCA border is in the end boundary of certain time slot afterwards) when, then delaying state module makes
Obtain this user side and enter and postpone (defer) state (user side 2,3 in such as Fig. 7).So
Afterwards when reaching on iCCA time slot through delaying state after a while, user side exits this and prolongs
State late, and initial idle channel estimating is implemented by channel estimation module, wherein, during iCCA
Gap refers to the time slot that the position of end boundary is overlapped with the position on iCCA border, that is, needs
Implement the time slot of initial idle channel estimating.Then channel estimation module confirms the knot of this iCCA
Fruit and detecting module detection is either with or without other users in access group belonging to this user side is detected
The preserved signal that end sends.If iCCA is qualified and is not detected by this preserved signal, say
This frequency spectrum resource bright can use, and sends reserved letter by transmitting element 401 on described frequency spectrum resource
Number to seize this frequency spectrum resource, and start to send upstream data in transmission boundary position afterwards
(user side 2 in such as Fig. 7)；If iCCA is unqualified or this preserved signal is detected
Then illustrate that this frequency spectrum resource is unavailable, terminate multi-upstream access process (such as Fig. 7 of this user side
In user side 3).
Referring to Fig. 8, in another specific embodiment, when described transmission border is in described frequency spectrum
When multiple correspondence position had on the time domain of resource (：Dynamic transmission border sets) when.Step
Rapid 206 specifically include following steps：
The preserved signal that other users end sends in the access group detecting belonging to this user side
Before, the qualified clear channel assessment (CCA) of specific times is completed by channel estimation module.With above-mentioned
Example is identical, and this specific times is determined by random back value, and shown in FIG as n.
When before detecting the preserved signal that other users end in described access group sends it is impossible to
Complete described specific times qualified clear channel assessment (CCA) when, terminate the up of described user side
Access procedure (user side 2 in such as Fig. 8).
When completing before detecting the preserved signal that other users end in described access group sends
During the qualified clear channel assessment (CCA) of described specific times, when location confirmation module confirms current
Whether the end boundary of gap is located on described iCCA border：
If the end boundary of-current time slots is located on described iCCA border, by sending out
Unit 401 is sent preserved signal to be sent on next time slot to seize this frequency spectrum resource, and at it
Second position afterwards starts to send upstream data.
If the end boundary of-current time slots is not located on described iCCA border (i.e.：Should
ICCA border is in the end boundary of certain time slot afterwards) when, then delaying state module makes
Obtain this user side and enter and postpone (defer) state (user side 1 in such as Fig. 8).Then
When reaching on iCCA time slot through delaying state after a while, user side exits this delay
State, and initial idle channel estimating, wherein, iCCA time slot are implemented by channel estimation module
Refer to the time slot that the position of end boundary is overlapped with the position on iCCA border, that is, need reality
Apply the time slot of initial idle channel estimating.Then channel estimation module confirms the result of this iCCA.
If qualified, illustrate that this frequency spectrum resource can use, by transmitting element 401 on next time slot
Send preserved signal to seize this frequency spectrum resource, and start to send in second position afterwards
Row data (user side 1 in such as Fig. 8)；If unqualified, illustrate that this frequency spectrum resource can not
With terminating the multi-upstream access process of this user side.
It is pointed out that the competition process in multi-upstream access (includes iCCA, CCA, prolongs
Late during state) in, in the case that dynamic transmission border sets, detecting module can be constantly
Implement signal detection reserved to determine whether that other users end in access group belonging to it sends
Signal, as long as user side measures the reserved letter that in access group belonging to it, other users end sends
Number, this user side will terminate multi-upstream access process to avoid occurring the transmission of upstream data to touch
Hit.
It is obvious to a person skilled in the art that the disclosure is not limited to above-mentioned one exemplary embodiment
Details, and in the case of the spirit or essential attributes without departing substantially from the disclosure, can be with it
His concrete form realizes embodiment of the disclosure.Therefore, from the point of view of anyway, all should be by reality
Apply example and regard exemplary as, and be nonrestrictive.Additionally, it will be evident that " inclusion " one
Word is not excluded for other elements and step, and wording " one " is not excluded for plural number.Device right will
The multiple element asking middle statement can also be realized by an element.The first, the second grade word is used
To represent title, and to be not offered as any specific order.
Claims (15)
1. a kind of method for realizing multi-upstream access in base station end, including：
Multiple user sides of base station end to be accessed to described are divided into multiple access groups；
Access component for each and join corresponding frequency spectrum resource, wherein in each access group described,
Distribute identical frequency spectrum resource for each user side；
In each access group, configure initial idle channel estimating iCCA side for each user side
Boundary and transmission border, the iCCA border of wherein each user side is configured to positioned at different time-gap
End boundary on；And
Send the letter of corresponding frequency spectrum resource, iCCA border and transmission border to each user side
Breath.
2. method according to claim 1 is wherein many by base station end to be accessed to described
Individual user side is divided into multiple access groups to include：
According to the first pre-defined rule, multiple user sides of base station end to be accessed to described are divided into many
Individual access group；
Wherein said first pre-defined rule is：Each user side in each access group can measure
The preserved signal that other users end in described access group is sent.
3. method according to claim 1 is wherein many by base station end to be accessed to described
Individual user side is divided into multiple access groups to include：
According to the second pre-defined rule, multiple user sides of base station end to be accessed to described are divided into many
Individual access group；
Wherein said second pre-defined rule is：Each user side in each access group can detect
The preserved signal that other users end in described access group is sent, and different dry will be in
Disturb the user in environment and be divided into one group.
4. method according to claim 1, wherein in same access group, each user
The transmission position in time domain for the border at end is identical.
5. method according to claim 1, wherein in same access group, each user
There are multiple correspondence positions on the transmission border at end, wherein between different user end in time domain respectively
The position on transmission border is offset from each other.
6. method according to claim 4, wherein in same access group, each user
The iCCA border at end has multiple correspondence positions, wherein said iCCA border in time domain respectively
Position identical with the position on described transmission border.
7. a kind of method realizing multi-upstream access in user side, including：
I. obtain distribute to the information of the frequency spectrum resource of access group that described user side belonged to and
It is allocated to the initial idle channel estimating iCCA border of described user side and the letter on transmission border
Breath；
II. when the qualified and described frequency spectrum resource of the clear channel assessment (CCA) of unauthorized frequency range is in institute
State user side to start to send the other users in the access group not belonged to before upstream data
When end takies, preserved signal is sent on described frequency spectrum resource to take described frequency spectrum resource, and
And realize the transmission of upstream data.
8. method according to claim 7, wherein, described is allocated to described user side
The signaling that the information on initial idle channel estimating iCCA border and transmission border sends from base station end
Middle acquisition, or obtain from predefined specification.
9. method according to claim 8, wherein when described transmission border is in described frequency spectrum
When being configured in the time domain of resource on a fixed position, step II includes：
II-1., before the position on described iCCA border, implement extension clear channel assessment (CCA)
eCCA；
II-1-1. complete the idle letter of described extension before the position on described iCCA border
During road assessment, confirm whether the end boundary of current time slots is located on described iCCA border：
If II-1-1-1. the end boundary of described current time slots is located at described iCCA
On border, then preserved signal is sent on described frequency spectrum resource；
If described in II-1-1-2. the end boundary of described current time slots is not located at
On iCCA border, then described user side enters delaying state, and in iCCA afterwards
Initial idle channel estimating is implemented on time slot；
When described initial idle channel estimating is qualified and is not detected by reserving
During signal, then preserved signal is sent on described frequency spectrum resource；
When described initial idle channel estimating is unqualified or preserved signal is detected
When, terminate described user uplink and access；
II-1-2. described extension can not be completed before the position on described iCCA border empty
During channel assessment, terminate described user uplink and access；
II-2., on described frequency spectrum resource, start to send upper line number from the position on described transmission border
According to.
10. method according to claim 8, wherein when described transmission border is in described frequency
When being configured for multiple position in the time domain of spectrum resource, step II includes：
II-1. before detecting the preserved signal that in described access group, other users end sends, real
Apply extension clear channel assessment (CCA) eCCA；
II-1-1. when in the reserved letter detecting other users end transmission in described access group
When number completing described extension clear channel assessment (CCA) before, confirm the end side of current time slots
Whether boundary is located on described iCCA border：
If II-1-1-1. the end boundary of described current time slots is located at described iCCA
On border, then preserved signal is sent on the next time slot of described frequency spectrum resource；
If described in II-1-1-2. the end boundary of described current time slots is not located at
On iCCA border, then described user side enters delaying state, and in iCCA afterwards
Initial idle channel estimating is implemented on time slot；
When described initial idle channel estimating is qualified, then provide in described frequency spectrum
Preserved signal is sent on source；
When described initial idle channel estimating is unqualified, terminate described user
Multi-upstream access；
II-1-2. when in the reserved letter detecting other users end transmission in described access group
Number before it is impossible to when completing described extension clear channel assessment (CCA), terminate described user uplink
Access；
II-2. on described frequency spectrum resource, during after the position on described transmission border second
Gap starts to send upstream data.
11. methods according to claim 10, wherein when described user side is sending in advance
When the preserved signal that the other users end in described access group sends is detected before staying signal, knot
Shu Suoshu user uplink accesses.
A kind of 12. devices for realizing multi-upstream access in base station end, including：
Grouped element, for being divided into multiple connecing by multiple user sides of base station end to be accessed to described
Enter group；
Frequency spectrum allocation unit, joins corresponding frequency spectrum resource for accessing component for each, wherein exists
In each access group described, distribute identical frequency spectrum resource for each user side；
Border setup unit, in each access group, initially empty for the configuration of each user side
Channel assessment iCCA border and transmission border, the wherein iCCA border quilt of each user side
It is configured in the end boundary of different time-gap；And
Transmitting element, for sending corresponding frequency spectrum resource, iCCA border to each user side
With transmission boundary information.
13. devices according to claim 12, wherein in same access group, each use
The transmission position in time domain for the border at family end is identical.
14. devices according to claim 12, wherein in same access group, each use
The transmission border at family end has multiple correspondence positions in time domain respectively, wherein between different user end
Transmission border position be offset from each other.
A kind of 15. devices realizing multi-upstream access in user side, including：
Receiving unit, obtains and distributes to the frequency spectrum resource of access group that described user side is belonged to
Information and the initial idle channel estimating iCCA border and the transmission border that are allocated to described user side
Information；
Multi-upstream access unit, for when the clear channel assessment (CCA) of described unlicensed spectrum is qualified and
And described frequency spectrum resource was not belonged to before described user side starts to send upstream data
When other users end in access group takies, implement multi-upstream access.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019091446A1 (en) * | 2017-11-10 | 2019-05-16 | 索尼公司 | Apparatus and method in wireless communication system, and computer readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355724A (en) * | 2007-07-26 | 2009-01-28 | 中兴通讯股份有限公司 | Method and apparatus for reducing information transmission conflict in mobile communication system |
| CN102209391A (en) * | 2010-03-29 | 2011-10-05 | 华为技术有限公司 | Random access resource configuration method and device |
| CN102333381A (en) * | 2011-10-28 | 2012-01-25 | 电信科学技术研究院 | Resource scheduling and data transmission methods and devices |
| CN102595633A (en) * | 2011-01-17 | 2012-07-18 | 华为技术有限公司 | Random access method, user equipment and network equipment |
-
2015
- 2015-08-10 CN CN201510487574.0A patent/CN106455000B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355724A (en) * | 2007-07-26 | 2009-01-28 | 中兴通讯股份有限公司 | Method and apparatus for reducing information transmission conflict in mobile communication system |
| CN102209391A (en) * | 2010-03-29 | 2011-10-05 | 华为技术有限公司 | Random access resource configuration method and device |
| CN102595633A (en) * | 2011-01-17 | 2012-07-18 | 华为技术有限公司 | Random access method, user equipment and network equipment |
| CN102333381A (en) * | 2011-10-28 | 2012-01-25 | 电信科学技术研究院 | Resource scheduling and data transmission methods and devices |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP: "《3rd Generation Partnership Project;Technical Specification Group Radio Access Network;Study on Licensed-Assisted Access to Unlicensed Spectrum;(Release 13)》", 《ISEARCH.3GPP.ORG/ISYSQUERY/3B180723-59A0-4E53-8074-FB2A924795E9/1/DOC/》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019091446A1 (en) * | 2017-11-10 | 2019-05-16 | 索尼公司 | Apparatus and method in wireless communication system, and computer readable storage medium |
| US10944449B2 (en) | 2017-11-10 | 2021-03-09 | Sony Corporation | Apparatus and method in wireless communication system, and computer readable storage medium |
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|---|---|
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