CN106304369A - The method and device of resource contention based on access priority - Google Patents
The method and device of resource contention based on access priority Download PDFInfo
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- CN106304369A CN106304369A CN201510250280.6A CN201510250280A CN106304369A CN 106304369 A CN106304369 A CN 106304369A CN 201510250280 A CN201510250280 A CN 201510250280A CN 106304369 A CN106304369 A CN 106304369A
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- frequency range
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000013475 authorization Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
- H04W74/0875—Non-scheduled access, e.g. ALOHA using a dedicated channel for access with assigned priorities based access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses method and the device of a kind of resource contention based on access priority, including: serving BS is set up according to the interference environment of each subscriber equipment in community or re-establishes user's group；Subscriber equipment receive come from serving BS include subscriber equipment the access priority of unauthorized frequency range uplink scheduling permit；Subscriber equipment is configured to the uplink frame structure of the uplink of unauthorized frequency range according to access priority；Based on uplink frame structure, other preserved signal of other subscriber equipment in blind check user group in unauthorized frequency range；And based on uplink frame structure, this unauthorized frequency range carried out clear channel assessment (CCA): if the result that this subscriber equipment does not has blind check to arrive other preserved signal and clear channel assessment (CCA) is the free time, then sends the first preserved signal and carry out transmitting uplink data；If blind check is busy to the result of other preserved signal or clear channel assessment (CCA), then stop competing this unauthorized frequency range.
Description
Technical field
The present invention relates to wireless communication network, more particularly, to for unauthorized frequency
The method and device of the resource contention based on access priority of section.
Background technology
The LTE accessing unauthorized frequency range authorizes photocarrier method to access (LAA:Licensed
Assisted Access) system is requisite as the supplementary mode of legacy system.Session
Before intercept (LBT:Listen Before Talk), carrier sense or have on certain carrier wave has
The discontinuous transmission of the maximum transmission time of limit, dynamic frequency selection (DFS:Dynamic
Frequency Selection), carrier wave selects, and transmitting power control (TPC:Transmission
Power Control) etc. be considered as compliant require needed for function.These functions make
LTE LAA system and other WLANs can be good at coexist simultaneously.
Such as the requirement of certain areas specification, such as in Europe, in order to realize multiple operator/
Coexisting between wireless access technology (RAT), before unauthorized frequency range is transmitted,
Carrier sense should be performed sending equipment side.When the uplink considered in unauthorized frequency range,
When subscriber equipment (UE:User Equipment) is as when launching equipment, it should in UE side
Support carrier sense.
The uplink scheduling coming from Serving cell by (e) PDCCH reception as UE is permitted
(grant) after, the only clear channel assessment (CCA) (CCA) in unauthorized frequency range in UE side
During for the free time, UE just can perform uplink in this unauthorized frequency range；Otherwise, though UE
Have received the uplink scheduling license coming from Serving cell, UE can not be at this unauthorized frequency
Uplink is started on Duan.Thus, the chance of uplink is lowered by, and wastes resource,
Because the resource being already allocated to this UE can not be used by other users.Each in order to improve
The uplink probability of user and ascending resource utilization rate, be necessary for being modified to unauthorized frequency range
The uplink scheduling license of uplink and up frame structure design.
Summary of the invention
According to above-mentioned to background technology and the understanding of the technical problem of existence, if it is possible to carry
For method and the device of resource contention based on access priority in a user device, by right and wrong
Chang Youyi's.
According to the first aspect of the invention, it is provided that one is in a user device based on access
The method of the resource contention of priority, the method comprises the following steps: A. receives and comes from clothes
Business base station uplink scheduling license, this uplink scheduling license include this subscriber equipment unauthorized
The access priority of frequency range；B. this access priority of root is configured to the upper of this unauthorized frequency range
The uplink frame structure of row transmission, this uplink frame structure is a kind of frame knot in uplink frame structured set
Structure；C. based on this uplink frame structure, other in blind check user's group in this unauthorized frequency range
Other preserved signal of subscriber equipment；And D. based on this uplink frame structure to this unauthorized frequency
Duan Jinhang clear channel assessment (CCA): if this subscriber equipment do not have blind check arrive this other preserved signal and
The result of this clear channel assessment (CCA) is idle, then send the first reserved letter in this unauthorized frequency range
Number and carry out the transmitting uplink data of this subscriber equipment；If this subscriber equipment blind check has arrived this its
The result of its preserved signal or this clear channel assessment (CCA) is busy, then stop competing this unauthorized frequency
Section.
Advantageously, the license of this uplink scheduling is permitted for the specific uplink scheduling of this subscriber equipment.
Advantageously, the license of this uplink scheduling organizes shared uplink scheduling license for this user, should
Uplink scheduling license includes the access priority of each subscriber equipment in this user's group.
Advantageously, this uplink frame structure includes free timeslot, CCA time slot, preserved signal
Time slot and maximum channel take time slot.
Advantageously, this uplink frame structure and this access priority are associated.
Advantageously, the time slot of the clear channel assessment (CCA) in this uplink frame structure indexes and this access
Priority is correlated with.
Advantageously, the access priority of this subscriber equipment is the highest, the free time of this uplink frame structure
The time slot index of channel estimating is the least.
Advantageously, having more than this subscriber equipment during this other preserved signal is this user's group
The preserved signal that the subscriber equipment of high priority is sent.
Advantageously, the time slot of this first preserved signal is at the access priority than this subscriber equipment
Before the time slot of the clear channel assessment (CCA) of low subscriber equipment terminates.
Advantageously, this uplink frame structured set is pre-configured by system, or is existed by this serving BS
The cell downlink broadcast channel of this serving BS sends, or by this serving BS in this user's group
Interior downlink broadcast channel sends.
Advantageously, this first preserved signal is the specific preserved signal in community, and it makes this base
Station determines the subscriber equipment taking this unauthorized frequency range and the subscriber equipment taking unauthorized frequency range
Uplink frame structure.
According to the second aspect of the invention, it is provided that a kind of in serving BS based on access
The method of the resource contention of priority, the method comprises the following steps: i. sets up or rebuilds user
Group, the subscriber equipment in this user's group by pre-authorization to compete unauthorized frequency range；Ii. to this use
Subscriber equipment in the group of family sends uplink scheduling license, and the license of this uplink scheduling includes that this user sets
The standby access priority in unauthorized frequency range；Iii. the subscriber equipment in this user's group of blind check is sent out
The preserved signal sent；Iv. according to this preserved signal received, determine and take unauthorized frequency range
Subscriber equipment and take the uplink frame structure of subscriber equipment of unauthorized frequency range.
Advantageously, step i includes: notify that the subscriber equipment in the community of this serving BS is surveyed
Amount preserved signal also reports measurement result；According to the subscriber equipment institute in the community of this serving BS
The measurement result reported, determines the subscriber equipment in this user's group and this user's group.
Advantageously, the subscriber equipment in this user's group has different interference environments.
Advantageously, the subscriber equipment in this user's group can detect having not in this user's group
Preserved signal with the subscriber equipment of access priority.
According to the third aspect of the present invention, it is provided that one is in a user device based on access
The device of the resource contention of priority, this device includes: receive unit, its for receive from
In serving BS uplink scheduling permit, this uplink scheduling license include this subscriber equipment non-
Authorize the access priority of frequency range；Dispensing unit, it is for using according to the configuration of this access priority
In the uplink frame structure of the uplink of this unauthorized frequency range, this uplink frame structure is uplink frame knot
A kind of frame structure in structure set；First blind check unit, it is for based on this uplink frame structure,
Other preserved signal of other subscriber equipment in blind check user's group in this unauthorized frequency range；
Assessment unit, it is commented for this unauthorized frequency range being carried out idle channel based on this uplink frame structure
Estimate；And identifying unit, its be used for judging the whether blind check of described subscriber equipment arrived described other
Preserved signal, if described subscriber equipment does not has blind check to arrive other preserved signal described and described sky
The result of channel assessment is idle, then send the first preserved signal in described unauthorized frequency range
With the transmitting uplink data carrying out described subscriber equipment；If institute has been arrived in described subscriber equipment blind check
The result stating other preserved signal or described clear channel assessment (CCA) is busy, then stop competition described
Unauthorized frequency range.
According to the fourth aspect of the present invention, it is provided that a kind of in serving BS based on access
The device of the resource contention of priority, this device includes: user sets up vertical unit, and it is used for building
Vertical or rebuild user's group, the subscriber equipment in this user's group by pre-authorization to compete unauthorized frequency
Section；Transmitting element, it is for the subscriber equipment transmission uplink scheduling license in this user's group,
The license of this uplink scheduling includes the access priority in unauthorized frequency range of this subscriber equipment；Second
Blind check unit, the preserved signal that its subscriber equipment in this user's group of blind check sends；And
Preserved signal receives unit, and it is for according to the preserved signal that receives, determine take unauthorized
The subscriber equipment of frequency range and take the uplink frame structure of subscriber equipment of unauthorized frequency range.
The solution of the present invention be capable of so that scheduling user organize interior multiple subscriber equipment and other
The intra/inter-transmission equipment of operator carry out resource contention.Even if the UE of high access priority is not
Can take unauthorized frequency range, the preferential subscriber equipment of other low access in this user's group is the most organic
The unauthorized frequency range for uplink can be taken.Therefore, on the solution of the present invention can improve
Row transmission opportunity, thus reduce ascending resource waste.Additionally, the uplink frame structure of the present invention and
Existing LBT specification is mutually compatible.
Accompanying drawing explanation
The following detailed description to non-limiting example is read by referring to accompanying drawing,
The other features, objects and advantages of the present invention will become more apparent upon.
Fig. 1 shows according to an embodiment of the invention based on access priority up
The schematic diagram of frame structure；
Fig. 2 shows according to an embodiment of the invention in a user device based on access
The flow chart of the resource contention of priority；
Fig. 3 show according to an embodiment of the invention in serving BS based on access
The flow chart of the resource contention of priority；
Fig. 4 shows the resource contention based on access priority of the embodiment according to Fig. 2
Device schematic diagram；And
Fig. 5 shows the resource contention based on access priority of the embodiment according to Fig. 3
Device schematic diagram.
In the drawings, run through different diagrams, same or similar reference represent identical or
Similar device (module) or step.
Detailed description of the invention
In the specific descriptions of following preferred embodiment, will be with reference to constituting a present invention part
Appended accompanying drawing.Appended accompanying drawing has been illustrated by way of example and has been capable of the present invention's
Specific embodiment.The embodiment of example is not intended as the limit all enforcements according to the present invention
Example.It is appreciated that without departing from the scope of the present invention, it is possible to use other are implemented
Example, it is also possible to carry out the structural or amendment of logicality.Therefore, following specific descriptions are also
Nonrestrictive, and the scope of the present invention is defined by the claims appended hereto.Need explanation
It is, although accompanying drawing describes the step of method in the present invention with particular order, but this
Do not require that or imply and according to this particular order to perform these operations, or must must hold
Operation shown in row is whole could realize desired result, on the contrary, step described herein
Execution sequence can be changed.Additionally or alternatively, it is convenient to omit some step, by multiple steps
Suddenly merge into a step to perform, and/or a step is decomposed into the execution of multiple step.
The central scope of the present invention is that base station pre-authorization one group has different access priorities
Subscriber equipment and other pass loser in unauthorized frequency range, carry out the competition of uplink transmission resource,
Wherein the uplink frame structure for uplink designs based on access priority.The present invention
Embodiment using subscriber equipment as the sender of uplink as a example by the skill of the present invention is described
Art scheme, it will be understood by those skilled in the art that this is not intended to limit uplink
Sender, on the contrary, the sender of uplink can be any suitable communication equipment.
Fig. 1 shows according to an embodiment of the invention based on access priority up
The schematic diagram of frame structure.This uplink frame structure and equipment (FBE:Frame-based based on frame
Equipment) specification is mutually compatible.
First, it is assumed that different uplink frame structures has the identical FBE frame period, each
Frame period at least can include free timeslot, CCA time slot and maximum channel holding time.Fig. 1
Middle uplink frame structured set has high access priority, middle access priority and low access priority
Uplink frame structure, the access priority of uplink frame structure and subscriber equipment is associated to avoid user
The collision between subscriber equipment in group.The time slot rope of the clear channel assessment (CCA) in uplink frame structure
Drawing relevant with this access priority, the access priority of subscriber equipment is the highest, uplink frame structure
The time slot index of clear channel assessment (CCA) is the least.The set of uplink frame structure can be pre-configured by system,
Or send in the cell downlink broadcast channel of this serving BS, or this use at this serving BS
In the group of family, downlink broadcast channel sends.
Additionally, also can have preserved signal time slot after CCA time slot, when CCA result is
The when of idle, subscriber equipment sends preserved signal.The effect of this preserved signal at least includes:
Channel reservation after CCA time slot；
For the user in user's group, the detection of preserved signal can be used for determining that this non-is awarded
Power frequency range is the most shared by other subscriber equipment in user's group；
For serving BS, the detection of preserved signal can make serving BS determine to take
The subscriber equipment of unauthorized frequency range and take the subscriber equipment of unauthorized frequency range and take unauthorized
The uplink frame structure of the subscriber equipment of frequency range.
Additionally, preserved signal measured by the subscriber equipment that serving BS can also notify Serving cell
And report measurement result to set up user's group or to re-establish user's group.Preserved signal can be little
District is specific, and other subscriber equipment in same user's group can information based on Serving cell
Detection preserved signal.The time slot index of the preserved signal of the subscriber equipment of high access priority can be
Before the preserved signal time slot index of the subscriber equipment of low access priority, thus in user's group
The subscriber equipment of low access priority has sufficient time to detect the use of high access priority
The preserved signal that family equipment is sent.
The purpose setting up user's group is that a subscriber equipment in user's group the most successfully accounts for
In the case of channel, improve this user organize in other subscriber equipment in unauthorized frequency range
Uplink chance.Traditional method is that one subscriber equipment of scheduling goes to compete unauthorized frequency range,
It is the most then that one group of subscriber equipment with different access priority of pre-authorization goes competing
Strive unauthorized frequency range.
The access priority of each subscriber equipment in user's group and the access of its uplink frame are excellent
First level is corresponding, and it can require to dynamically adjust according to the access of subscriber equipment.In user's group
The access priority of each user can explicitly or implicitly notifying user equipment.
Alternatively, each user in user's group has the specific uplink scheduling of this subscriber equipment
License, the license of this uplink scheduling includes that the access in unauthorized frequency range of this subscriber equipment is preferential
Level.This scheme is less on the impact of prior art, and the access priority of such as subscriber equipment can
Explicitly be included in the existing descending control information for uplink scheduling authorization (DCI:
Downlink Control Information) in.
Alternatively, each subscriber equipment in user's group can share the uplink scheduling of this user group
License, the uplink scheduling license that this is shared includes that the access of each subscriber equipment in user's group is preferential
Level.Such as, design a kind of new user and organize shared uplink scheduling license, at this uplink scheduling
License at least includes the access priority of each subscriber equipment in user's group.Subscriber equipment
Access priority also can be implicitly by each user's Modulation and Coding Scheme (MCS:Modulation and
Coding Scheme) sequencing indicates.The information of this user group can be by such as high-rise
Signaling is sent to subscriber equipment in advance.Such as the group membership's of this user group is all possible up
Frame structure, group identifier etc..
So that a subscriber equipment in user's group does not has the situation of successful busy channel
Under, in this user organizes, other subscriber equipment can also carry out resource contention in unauthorized frequency range.Base
Station needs to set up a user's group competing unauthorized frequency range.
Subscriber equipment in this user's group can have different interference environments.Such as, user's group
The interior distance between two subscriber equipmenies far makes doing between the two subscriber equipment as far as possible
Disturb environment different.
The difference that has that subscriber equipment in this user's group can detect in this user's group accesses
The preserved signal of the subscriber equipment of priority, thus subscriber equipment has judged unauthorized frequency range the most
Other subscriber equipment through being organized by this user occupies.
In order to set up user's group or re-establish user's group, such as serving BS can be by such as
Some subscriber equipmenies in high-level signaling notifying cell specific time/frequency resource (such as certain
Individual subframe) above measure the preserved signal sent by intra-cell users equipment.These some subscriber equipmenies
The measurement result of preserved signal is reported to serving BS, such as each by such as high-level signaling
Detection labelling on subband/preserved signal intensity/annoyance level etc..Based on these some subscriber equipmenies
The measurement result reported, serving BS determines that the user in user's group and this user's group sets
Standby.Serving BS may be based on measurement result and the scheduling requirement that these some subscriber equipmenies are reported
Determine the subscriber equipment in user's group and this user's group.Serving BS can also be according to reserved letter
Number measurement result, user is grouped by customer position information etc. so that the use in user's group
Family equipment has different interference environments.
Additionally, serving BS can improve the power of subscriber equipment transmission preserved signal thus increase
The detectability of preserved signal, so that the letter between the subscriber equipment in same user's group
Road and interference environment have identification degree, and this is conducive to improving user's group and takies unauthorized frequency range
The chance of uplink.
Fig. 2 shows according to an embodiment of the invention in a user device based on access
The flow chart of the resource contention of priority.
In step s 201, subscriber equipment receives and comes from the uplink scheduling of serving BS perhaps
Can, the license of this uplink scheduling includes the access priority in unauthorized frequency range of this subscriber equipment.
Alternatively, the license of this uplink scheduling is permitted for the specific uplink scheduling of this subscriber equipment.
Alternatively, the license of this uplink scheduling organizes shared uplink scheduling license for user, on this
Row scheduling grant includes the access priority of each subscriber equipment in user's group.
In step S202, it is unauthorized that this subscriber equipment configures this according to this access priority
Uplink frame structure in the uplink frame structured set of frequency range.
This uplink frame structured set can be pre-configured by system, or under the community of this serving BS
Row broadcast channel sends, or organizes in interior downlink broadcast channel this user of this serving BS and send out
Send.
This uplink frame structure includes free timeslot, CCA time slot, preserved signal time slot and
Big channel occupancy time slot.
This uplink frame structure and this access priority are associated.Specifically, this uplink frame structure
In clear channel assessment (CCA) time slot index relevant with this access priority.Connecing of this subscriber equipment
Enter priority the highest, the time slot index of the clear channel assessment (CCA) of the uplink frame structure of this subscriber equipment
The least.
Such as, as it is shown in figure 1, subscriber equipment 1,2 and 3 correspond respectively to high access excellent
Uplink frame structure A of first level, uplink frame structure B of middle access priority, low access priority
Uplink frame structure C.
In step S203, this subscriber equipment is based on its uplink frame structure, at unauthorized frequency
Other preserved signal of other subscriber equipment in blind check user group in section.
This other preserved signal be in this user's group than this subscriber equipment have the highest preferentially
The preserved signal that the subscriber equipment of level is sent.
In step S204, unauthorized frequency range is entered by this subscriber equipment based on uplink frame structure
Line space channel assessment:
If this subscriber equipment does not has blind check to arrive other preserved signal and clear channel assessment (CCA)
Result is idle, then send the first preserved signal in unauthorized frequency range and carry out this subscriber equipment
Transmitting uplink data；
If other preserved signal or this clear channel assessment (CCA) have been arrived in this subscriber equipment blind check
Result is busy, then stop competing unauthorized frequency range.
This first preserved signal is the specific preserved signal in community, and it makes the serving BS can
Determine the subscriber equipment taking unauthorized frequency range and subscriber equipment upper taking unauthorized frequency range
Row frame structure.
Such as, as it is shown in figure 1, subscriber equipment 1 is tied at the free timeslot of uplink frame structure A
Clear channel assessment (CCA) is carried out, it is assumed that the result of clear channel assessment (CCA) is busy, then user before bundle
Equipment 1 stops competing unauthorized frequency range.Meanwhile, subscriber equipment 2 and subscriber equipment 3 are up
The preserved signal time slot of frame structure A carries out the specific preserved signal detection of such as community.Due to
Family equipment 1 is not sent in the preserved signal time slot of uplink frame structure A and sends preserved signal, uses
It is reserved that the subscriber equipment that family equipment 2 and subscriber equipment 3 are not detected by user's group is sent
Signal, subscriber equipment 2 is when the clear channel assessment (CCA) of uplink frame structure B of middle access priority
Gap carries out clear channel assessment (CCA), and subscriber equipment 3 enters at the preserved signal time slot of uplink frame structure B
Row preserved signal detects.If the result of the clear channel assessment (CCA) of subscriber equipment 2 is idle, use
Family equipment 2 is after clear channel assessment (CCA), and the preserved signal time slot in uplink frame structure B sends
Preserved signal, and in unauthorized frequency range, carry out transmitting uplink data after sending preserved signal.
Subscriber equipment 3 detects by subscriber equipment 2 at the preserved signal time slot of uplink frame structure B
The preserved signal sent, subscriber equipment 3 stops competing unauthorized frequency range.
Fig. 3 show according to an embodiment of the invention in serving BS based on access
The flow chart of the resource contention of priority；
In step S301, serving BS is set up or rebuilds user's group, in this user's group
Subscriber equipment by pre-authorization to compete unauthorized frequency range.
Specifically, the subscriber equipment in serving BS notifying cell is measured preserved signal and reports
Measurement result.The measurement result that serving BS is reported according to the subscriber equipment in community, determines
Subscriber equipment in user's group and user's group.Subscriber equipment in this user's group can have difference
Interference environment.Subscriber equipment in this user's group can detect has difference in this user's group
The preserved signal of the subscriber equipment of access priority.
In step s 302, serving BS subscriber equipment in this user's group sends up
Scheduling grant, the license of this uplink scheduling includes that the access in unauthorized frequency range of this subscriber equipment is excellent
First level.
In step S303, the subscriber equipment in this user's group of serving BS blind check sends
Preserved signal.
In step s 304, serving BS, according to the preserved signal received, determines and takies
The subscriber equipment of unauthorized frequency range and take the uplink frame structure of subscriber equipment of unauthorized frequency range.
Such as, serving BS is after setting up user's group, and base station is according to the user in user's group
The access priority of equipment knows the uplink frame structured set that user organizes.Serving BS is according to all
Subscriber equipment in all uplink frame structure blind check user's groups in uplink frame structured set may
The time slot of the preserved signal sent.If be detected that preserved signal, serving BS determine take non-
The subscriber equipment authorizing frequency range and the uplink frame structure of the subscriber equipment taking unauthorized frequency range.Example
As, if the preserved signal time slot that serving BS detects uplink frame structure B has preserved signal,
Serving BS, based on this preserved signal received, determines that subscriber equipment 2 takies unauthorized frequency range
And it is uplink frame structure B, thus base station may determine that the time started of transmitting uplink data also
Carry out corresponding upstream data detection.
Fig. 4 shows the resource contention based on access priority of the embodiment according to Fig. 2
Device schematic diagram.Device 400 can be such as or can be implemented in and retouched above in association with Fig. 2
Subscriber equipment in the embodiment stated.
As shown in Figure 4, device 400 includes receiving unit 401, and it comes from for reception
Serving BS uplink scheduling license, this row scheduling grant include this subscriber equipment unauthorized
The access priority of frequency range；Dispensing unit 402, it is for according to this, to enter priority be this user
Equipment configures the uplink frame structure in the uplink frame structured set of this unauthorized frequency range；First blind check
Unit 403, it is for based on this uplink frame structure, blind check user in this unauthorized frequency range
Other preserved signal of other subscriber equipment in group；Assessment unit 404 is in based on this uplink frame
Structure carries out clear channel assessment (CCA) to this mandate frequency range；And identifying unit 405, it is used for sentencing
Whether other preserved signal described has been arrived in blind check to fixed described subscriber equipment, if described subscriber equipment
The result not having blind check to arrive other preserved signal described and described clear channel assessment (CCA) is the free time, then
Described unauthorized frequency range sends the first preserved signal and carries out the up of described subscriber equipment
Data are transmitted；If other preserved signal described or described free time have been arrived in described subscriber equipment blind check
The result of channel estimating is busy, then stop competing described unauthorized frequency range..
Fig. 5 shows the resource contention based on access priority of the embodiment according to Fig. 3
Device schematic diagram.Device 500 can be such as or can be implemented in and retouched above in association with Fig. 3
Subscriber equipment in the embodiment stated.
As it is shown in figure 5, device 500 includes that user sets up vertical unit 501, it is used for setting up
Or rebuild user's group, the subscriber equipment in this user's group by pre-authorization to compete unauthorized frequency range；
Transmitting element 502, it is for the subscriber equipment transmission uplink scheduling license in this user's group,
The license of this uplink scheduling includes the access priority in unauthorized frequency range of this subscriber equipment；Second
Blind check unit 503, the preserved signal that its subscriber equipment in this user's group of blind check sends；
And preserved signal receives unit 504, it is for according to the preserved signal received, determining and account for
With the uplink frame knot of the subscriber equipment of unauthorized frequency range and the subscriber equipment taking unauthorized frequency range
Structure.
It is obvious to a person skilled in the art that the invention is not restricted to above-mentioned exemplary enforcement
The details of example, and without departing from the spirit or essential characteristics of the present invention, it is possible to
Other concrete form realizes the present invention.Therefore, in any case from the point of view of, embodiment all should be seen
Work is exemplary, and is nonrestrictive.Additionally, it will be evident that " an including " word is not arranged
Except other elements and step, and wording " one " is not excluded for plural number.In device claim old
The multiple elements stated can also be realized by an element.The first, the second word such as grade is used for representing
Title, and it is not offered as any specific order.
Claims (17)
1. a method for resource contention based on access priority in a user device, should
Method comprises the following steps:
A. receiving the uplink scheduling license coming from serving BS, described uplink scheduling is permitted
The access priority in unauthorized frequency range including described subscriber equipment；
B. the uplink of described unauthorized frequency range it is configured to according to described access priority
Uplink frame structure, described uplink frame structure is a kind of frame structure in uplink frame structured set；
C. based on described uplink frame structure, in described unauthorized frequency range, blind check user organizes
Other preserved signal of other subscriber equipment；And
D. based on described uplink frame structure described unauthorized frequency range carried out clear channel assessment (CCA):
If described subscriber equipment does not has blind check to arrive other preserved signal described and described free time
The result of channel estimating is idle, then send in described unauthorized frequency range the first preserved signal and
Carry out the transmitting uplink data of described subscriber equipment；
If other preserved signal described or described idle letter have been arrived in described subscriber equipment blind check
The result of road assessment is busy, then stop competing described unauthorized frequency range.
Method the most according to claim 1, it is characterised in that described uplink scheduling is permitted
It can be the license of described subscriber equipment specific uplink scheduling.
Method the most according to claim 1, it is characterised in that described uplink scheduling is permitted
Can be that described user organizes shared uplink scheduling license, the license of described uplink scheduling includes described use
The access priority of each subscriber equipment in the group of family.
Method the most according to claim 1, it is characterised in that described uplink frame structure
Time slot is taken including free timeslot, CCA time slot, preserved signal time slot and maximum channel.
Method the most according to claim 1, it is characterised in that described uplink frame structure
It is associated with described access priority.
Method the most according to claim 5, it is characterised in that described uplink frame structure
In clear channel assessment (CCA) time slot index relevant with described access priority.
Method the most according to claim 6, it is characterised in that described subscriber equipment
Access priority is the highest, and the time slot index of the clear channel assessment (CCA) of described uplink frame structure is the least.
Method the most according to claim 1, it is characterised in that other reserved letter described
Number there is the subscriber equipment institute of higher priority for subscriber equipment described in the ratio in described user's group
The preserved signal sent.
Method the most according to claim 1, it is characterised in that the described first reserved letter
Number time slot at the idle channel of the subscriber equipment lower than the access priority of described subscriber equipment
Before the time slot of assessment terminates.
Method the most according to claim 1, it is characterised in that described uplink frame is tied
Structure set is pre-configured by system, or by described serving BS at the cell downlink of described serving BS
Broadcast channel sends, or by described serving BS downlink broadcast channel in described user's group
Middle transmission.
11. methods according to claim 1, it is characterised in that described first reserves
Signal is the specific preserved signal in community, and it makes described base station determine and takies described unauthorized frequency
The subscriber equipment of section and take the uplink frame structure of subscriber equipment of unauthorized frequency range.
12. 1 kinds of method of resource contention based on access priority, institutes in serving BS
The method of stating comprises the following steps:
I. set up or rebuild user's group, the subscriber equipment in described user's group by pre-authorization with competing
Strive unauthorized frequency range；
Ii. the subscriber equipment in described user's group sends uplink scheduling license, described up
Scheduling grant includes the access priority in unauthorized frequency range of described subscriber equipment；
Iii. the preserved signal that the subscriber equipment in user's group described in blind check sends；
Iv. according to the described preserved signal received, the user taking unauthorized frequency range is determined
Equipment and take the uplink frame structure of subscriber equipment of unauthorized frequency range.
13. methods according to claim 12, it is characterised in that described step i bag
Include:
Notify that the subscriber equipment in the community of described serving BS is measured preserved signal and reports
Measurement result；
The measurement result that the subscriber equipment in community according to described serving BS is reported, really
Subscriber equipment in fixed described user's group and described user's group.
14. methods according to claim 13, it is characterised in that in described user organizes
Subscriber equipment there is different interference environments.
15. methods according to claim 12, it is characterised in that in described user organizes
The user with different access priority that can detect in described user's group of subscriber equipment set
Standby preserved signal.
The device of 16. 1 kinds of resource contentions based on access priority in a user device, institute
State device to include:
Receiving unit, it is for receiving the uplink scheduling license coming from serving BS, described
Uplink scheduling license includes the access priority in unauthorized frequency range of described subscriber equipment；
Dispensing unit, it is for being configured to described unauthorized frequency according to described access priority
The uplink frame structure of the uplink of section, described uplink frame structure is in uplink frame structured set
A kind of frame structure；
First blind check unit, it is for based on described uplink frame structure, and blind check non-is awarded described
Other preserved signal of other subscriber equipment in user's group in power frequency range；
Assessment unit, it is for carrying out described unauthorized frequency range based on described uplink frame structure
Clear channel assessment (CCA)；And
Identifying unit, it is used for judging that the whether blind check of described subscriber equipment has arrived that described other is pre-
Stay signal, if described subscriber equipment does not has blind check to arrive other preserved signal described and described free time
The result of channel estimating is idle, then send in described unauthorized frequency range the first preserved signal and
Carry out the transmitting uplink data of described subscriber equipment；If described subscriber equipment blind check has been arrived described
The result of other preserved signal or described clear channel assessment (CCA) is busy, then stop competition described non-
Authorize frequency range.
17. 1 kinds of device of resource contention based on access priority, institutes in serving BS
State device to include:
User sets up vertical unit, and it is used for setting up or rebuilding user's group, in described user's group
Subscriber equipment by pre-authorization to compete unauthorized frequency range；
Transmitting element, it sends uplink scheduling for the subscriber equipment in described user's group and is permitted
Can, the license of described uplink scheduling includes that the access in unauthorized frequency range of described subscriber equipment is preferential
Level；
Second blind check unit, it is pre-that its subscriber equipment in user's group described in blind check sends
Stay signal；And
Preserved signal receives unit, and it is for according to the preserved signal received, determining and take
The subscriber equipment of unauthorized frequency range and take the uplink frame structure of subscriber equipment of unauthorized frequency range.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250280.6A CN106304369B (en) | 2015-05-15 | 2015-05-15 | The method and device of resource contention based on access priority |
| TW105114000A TW201701703A (en) | 2015-05-15 | 2016-05-05 | Method and apparatus for resource contention based on access priority |
| PCT/IB2016/000738 WO2016185275A1 (en) | 2015-05-15 | 2016-05-09 | Method and apparatus for resource contention based on access priority |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250280.6A CN106304369B (en) | 2015-05-15 | 2015-05-15 | The method and device of resource contention based on access priority |
Publications (2)
| Publication Number | Publication Date |
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| CN106304369A true CN106304369A (en) | 2017-01-04 |
| CN106304369B CN106304369B (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510250280.6A Active CN106304369B (en) | 2015-05-15 | 2015-05-15 | The method and device of resource contention based on access priority |
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| Country | Link |
|---|---|
| CN (1) | CN106304369B (en) |
| TW (1) | TW201701703A (en) |
| WO (1) | WO2016185275A1 (en) |
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| CN106937401A (en) * | 2017-03-07 | 2017-07-07 | 电子科技大学 | A kind of MAC connection control methods of cognitive radio Adhoc networks |
| WO2018209956A1 (en) * | 2017-05-14 | 2018-11-22 | 深圳市金立通信设备有限公司 | Unlicensed band random access method and device |
| WO2019109945A1 (en) * | 2017-12-06 | 2019-06-13 | 华为技术有限公司 | Method and device for transmitting data on unlicensed spectrum, and storage medium |
| CN109906627A (en) * | 2017-02-27 | 2019-06-18 | 华为技术有限公司 | Exempt from the competing method and equipment of licensed spectrum |
| CN110169188A (en) * | 2017-01-26 | 2019-08-23 | 高通股份有限公司 | Orthotype listem-before-talk scheme |
| WO2020061922A1 (en) * | 2018-09-27 | 2020-04-02 | 富士通株式会社 | Processing method and device based on load on unlicensed band |
| WO2020093330A1 (en) * | 2018-11-08 | 2020-05-14 | 华为技术有限公司 | Spectrum resource determination method, apparatus, and system |
| WO2024021978A1 (en) * | 2022-07-29 | 2024-02-01 | 华为技术有限公司 | Wifi communication method, apparatus and system |
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| CN106686738A (en) * | 2015-11-05 | 2017-05-17 | 索尼公司 | Apparatus and method of base station side and user equipment side, and wireless communication system |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016185275A1 (en) | 2016-11-24 |
| CN106304369B (en) | 2019-08-23 |
| TW201701703A (en) | 2017-01-01 |
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