CN106304369B - 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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- CN106304369B CN106304369B CN201510250280.6A CN201510250280A CN106304369B CN 106304369 B CN106304369 B CN 106304369B CN 201510250280 A CN201510250280 A CN 201510250280A CN 106304369 B CN106304369 B CN 106304369B
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- 238000013475 authorization Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram 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
- 238000001228 spectrum Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000013461 design 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)
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Abstract
The invention discloses the methods and device of a kind of resource contention based on access priority, comprising: serving BS establishes or re-establish user group according to the interference environment of user equipment each in cell；It includes uplink scheduling license of the user equipment in the access priority of unauthorized frequency range that user equipment, which is received from serving BS,；User 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 signals of other user equipmenies in unauthorized frequency range in blind examination user group；And clear channel assessment (CCA) is carried out to the unauthorized frequency range based on uplink frame structure: if it to the result of other preserved signals and clear channel assessment (CCA) is the free time that the user equipment, which does not have blind examination, sending the first preserved signal and progress transmitting uplink data；If blind examination arrived other preserved signals or clear channel assessment (CCA) result be it is busy, stop competing the unauthorized frequency range.
Description
Technical field
The present invention relates to wireless communication networks, more particularly, to for the preferential based on access of unauthorized frequency range
The method and device of the resource contention of grade.
Background technique
Access LTE authorization photocarrier method access (LAA:Licensed Assisted Access) system of unauthorized frequency range
Supplementary mode as legacy system is essential.(LBT:Listen Before Talk), carrier wave sense are listened to before session
It surveys or on some carrier wave with the discontinuous transmission of limited maximum transmission time, dynamic frequency selection (DFS:Dynamic
Frequency Selection), carrier wave selection and transmitting power control (TPC:Transmission Power Control)
Etc. being considered as function needed for meeting code requirement.These functions make the energy of LTE LAA system Yu other WLANs
It is coexisted while enough fine.
Such as the requirement that certain areas standardize, such as in Europe, in order to realize multiple operator/wireless access technologys (RAT)
Between coexist, before being transmitted in unauthorized frequency range, should sending device side execute carrier sense.It is unauthorized in consideration
When uplink in frequency range, when user equipment (UE:User Equipment) is as transmitting equipment, it should hold UE is collateral
Carrier sense.
After UE permits (grant) from the uplink scheduling of serving cell by (e) PDCCH reception, only in the side UE
When the clear channel assessment (CCA) (CCA) in unauthorized frequency range is idle, UE just can execute uplink in the unauthorized frequency range；
Otherwise, even if UE has received the uplink scheduling license from serving cell, UE can not start in the unauthorized frequency range
Uplink.The chance of uplink is lowered by as a result, and wastes resource, because being already allocated to the resource of the UE not
It can be used by other users.In order to improve the uplink probability and ascending resource utilization rate of each user, must just improve
Uplink scheduling license and uplink frame structure design for unauthorized frequency range uplink.
Summary of the invention
According to it is above-mentioned to background technique and understanding, if it is possible to base in a user device is provided
It will be very useful in the method and device of the resource contention of access priority.
According to the first aspect of the invention, one kind is provided in a user device based on the resource contention of access priority
Method, method includes the following steps: A. receive from serving BS uplink scheduling permit, the uplink scheduling license packet
Include the access priority in unauthorized frequency range of the user equipment；B. the root access priority is configured to the unauthorized frequency range
The uplink frame structure of uplink, the uplink frame structure are one of uplink frame structured set frame structure；C. it is based on the uplink
Frame structure, other preserved signals of other user equipmenies in the unauthorized frequency range in blind examination user group；And D. is based on being somebody's turn to do
Uplink frame structure carries out clear channel assessment (CCA) to the unauthorized frequency range: if the user equipment does not have blind examination to other reserved letters
Number and the result of the clear channel assessment (CCA) be the free time, then sent in the unauthorized frequency range and the first preserved signal and carry out the user
The transmitting uplink data of equipment；If other preserved signals or the result of the clear channel assessment (CCA) have been arrived in the user equipment blind examination
To be busy, then stop competing the unauthorized frequency range.
Advantageously, uplink scheduling license is the specific uplink scheduling license of the user equipment.
Advantageously, uplink scheduling license is the uplink scheduling license that the user group is shared, and uplink scheduling license includes
The access priority of each user equipment in the user group.
Advantageously, when which includes that free timeslot, CCA time slot, preserved signal time slot and maximum channel occupy
Gap.
Advantageously, the uplink frame structure and the access priority are associated.
Advantageously, the time slot index of the clear channel assessment (CCA) in the uplink frame structure is related to the access priority.
Advantageously, the access priority of the user equipment is higher, the time slot rope of the clear channel assessment (CCA) of the uplink frame structure
Draw smaller.
Advantageously, which is than the user equipment there is the user of higher priority to set in the user group
Standby transmitted preserved signal.
Advantageously, sky of the time slot of first preserved signal in the low user equipment of the access priority than the user equipment
Before the time slot of channel assessment terminates.
Advantageously, which is pre-configured by system, or by the serving BS the serving BS cell
It sends in downlink broadcast channel, or is sent in the downlink broadcast channel in the user group by the serving BS.
Advantageously, which is the specific preserved signal of cell, and the base station is made to determine that occupying this non-awards
It weighs the user equipment of frequency range and occupies the uplink frame structure of the user equipment of unauthorized frequency range.
According to the second aspect of the invention, provide it is a kind of in serving BS based on the resource contention of access priority
Method, method includes the following steps: i. is established or rebuild user group, the user equipment in the user group is by pre-authorization with competing
Strive unauthorized frequency range；Ii. the user equipment into the user group sends uplink scheduling license, and uplink scheduling license includes the use
The access priority in unauthorized frequency range of family equipment；Iii. the preserved signal that the user equipment in the blind examination user group is sent；
Iv. it according to the preserved signal received, determines the user equipment for occupying unauthorized frequency range and occupies the user of unauthorized frequency range
The uplink frame structure of equipment.
Advantageously, step i includes: that the user equipment in the cell for notify the serving BS measures preserved signal and reports survey
Measure result；According to the measurement result that the user equipment in the cell of the serving BS is reported, the user group and the use are determined
User equipment in the group of family.
Advantageously, the user equipment in the user group has different interference environments.
Advantageously, the user equipment in the user group is able to detect the use with different access priorities in the user group
The preserved signal of family equipment.
According to the third aspect of the present invention, one kind is provided in a user device based on the resource contention of access priority
Device, which includes: receiving unit, be used to receive from serving BS uplink scheduling license, the uplink scheduling
License includes the access priority in unauthorized frequency range of the user equipment；Configuration unit is used for according to the access priority
It is configured to the uplink frame structure of the uplink of the unauthorized frequency range, which is one in uplink frame structured set
Kind frame structure；First blind examination unit is used for based on the uplink frame structure, and blind examination is in the user group in the unauthorized frequency range
Other preserved signals of other user equipmenies；Assessment unit is used to carry out the unauthorized frequency range based on the uplink frame structure
Clear channel assessment (CCA)；And judging unit, it is used to determine whether other preserved signals have been arrived in blind examination to the user equipment,
If the user equipment does not have blind examination to the result of other preserved signals and the clear channel assessment (CCA) to be idle,
The first preserved signal is sent in the unauthorized frequency range and carries out the transmitting uplink data of the user equipment；If the user
Equipment blind examination arrived other preserved signals or the clear channel assessment (CCA) result be it is busy, then stop competing described non-award
Weigh frequency range.
According to the fourth aspect of the present invention, provide it is a kind of in serving BS based on the resource contention of access priority
Device, which includes: that user group establishes unit, is used to establish or rebuild user group, the user equipment in the user group
By pre-authorization to compete unauthorized frequency range；Transmission unit, the user equipment being used for into the user group send uplink scheduling and are permitted
Can, uplink scheduling license includes the access priority in unauthorized frequency range of the user equipment；Second blind examination unit, is used for
The preserved signal that user equipment in the blind examination user group is sent；And preserved signal receiving unit, it is used for basis and receives
Preserved signal, determine the user equipment for occupying unauthorized frequency range and occupy the uplink frame knot of the user equipment of unauthorized frequency range
Structure.
The solution of the present invention can be realized so that dispatching in user group multiple user equipmenies and other operators are intra/inter-
Sending device carries out resource contention.It is other in the user group even if the UE of high access priority cannot occupy unauthorized frequency range
The preferential user equipment of low access still has an opportunity to occupy the unauthorized frequency range for being used for uplink.Therefore, the solution of the present invention can
To improve uplink chance, to reduce ascending resource waste.In addition, uplink frame structure of the invention and existing LBT rule
Model is mutually compatible with.
Detailed description of the invention
The following detailed description to non-limiting embodiment, other spies of the invention are read by referring to accompanying drawing
Sign, objects and advantages will become more apparent upon.
Fig. 1 shows the schematic diagram of the uplink frame structure according to an embodiment of the invention based on access priority；
Fig. 2 shows according to an embodiment of the invention in a user device based on the resource contention of access priority
Flow chart；
Fig. 3 show it is according to an embodiment of the invention in serving BS based on the resource contention of access priority
Flow chart；
Fig. 4 shows the schematic device of the resource contention based on access priority of embodiment according to fig. 2；And
Fig. 5 shows the schematic device of the resource contention based on access priority of the embodiment according to Fig. 3.
Run through different diagrams in the figure, same or similar appended drawing reference indicates the same or similar device (module)
Or step.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.Therefore, it is below specific descriptions and it is unrestricted, and this
The range of invention is defined by the claims appended hereto.It should be noted that although describing this hair in attached drawing with particular order
The step of bright middle method, but this does not require that or implies must execute these operations in this particular order, or
It is to have to carry out operation shown in whole to be just able to achieve desired as a result, on the contrary, step described herein can change and hold
Row sequence.Additionally or alternatively, it is convenient to omit multiple steps are merged into step and executed by certain steps, and/or by one
A step is decomposed into execution of multiple steps.
Central scope of the invention be one group of base station pre-authorization with different access priorities user equipment and its
It passes the competition that loser carries out uplink transmission resource in unauthorized frequency range, wherein the uplink frame structure for uplink is base
It is designed in access priority.The embodiment of the present invention using user equipment as the sender of uplink for illustrate this
The technical solution of invention, it will be understood by those skilled in the art that this is not intended to limit the sender of uplink, phase
Instead, the sender of uplink can be any suitable communication equipment.
Fig. 1 shows the schematic diagram of the uplink frame structure according to an embodiment of the invention based on access priority.
The uplink frame structure is mutually compatible with equipment (FBE:Frame-based Equipment) specification based on frame.
First, it is assumed that the different uplink frame structures FBE frame period having the same, each frame period at least may include the free time
Time slot, CCA time slot and maximum channel holding time.Uplink frame structured set has high access priority, middle access priority in Fig. 1
With the uplink frame structure of low access priority, the access priority of uplink frame structure and user equipment is associated to avoid user group
Collision between interior user equipment.The time slot of clear channel assessment (CCA) in uplink frame structure indexes and the access priority phase
It closes, the access priority of user equipment is higher, and the time slot index of the clear channel assessment (CCA) of uplink frame structure is smaller.Uplink frame structure
Set can be pre-configured by system, or sent in the cell downlink broadcast channel of the serving BS, or in the serving BS
It is sent in downlink broadcast channel in the user group.
In addition, can also have preserved signal time slot after CCA time slot, and when CCA result is idle, user equipment hair
Send preserved signal.The effect of the preserved signal includes at least:
Channel reservation after CCA time slot；
For the user in user group, the detection of preserved signal can be used for determining the unauthorized frequency range whether be
Occupied by other user equipmenies in user group；
For serving BS, the detection of preserved signal may make serving BS to determine the user for occupying unauthorized frequency range
Equipment and the uplink frame structure for occupying the user equipment of unauthorized frequency range and the user equipment of the unauthorized frequency range of occupancy.
In addition, serving BS can also notify serving cell user equipment measure preserved signal and report measurement result with
It establishes user group or re-establishes user group.Preserved signal can be that cell is specific, other users in same user group
Equipment can be based on the infomation detection preserved signal of serving cell.The time slot of the preserved signal of the user equipment of high access priority
Index can be before the preserved signal time slot of the user equipment of low access priority index, so that the low access in user group is preferential
The user equipment of grade has sufficient time to detect preserved signal transmitted by the user equipment of high access priority.
Establish user group purpose be a user equipment in user group successful busy channel in the case where, mention
The uplink chance in unauthorized frequency range of other user equipmenies in the high user group.Traditional method is one use of scheduling
Family equipment goes to compete unauthorized frequency range, and is then in the present invention one group of the pre-authorization user equipment with different access priorities
It goes to compete unauthorized frequency range.
The access priority of each user equipment in user group is corresponding with the access priority of its uplink frame, can root
It requires to dynamically adjust according to the access of user equipment.The access priority of each user in user group can explicitly or implicitly
Ground notifying user equipment.
Optionally, each user in user group has the specific uplink scheduling license of the user equipment, which is permitted
It may include the access priority in unauthorized frequency range of the user equipment.Influence of this scheme to the prior art is smaller, such as
The access priority of user equipment can explicitly include existing downlink for uplink scheduling authorization control information (DCI:
Downlink Control Information) in.
Optionally, each user equipment in user group can share the uplink scheduling license of the user group, this is shared upper
Row scheduling grant includes the access priority of each user equipment in user group.For example, designing what the new user group of one kind was shared
Uplink scheduling license includes at least the access priority of each user equipment in user group in uplink scheduling license.With
The access priority of family equipment can also be implicitly by each user's Modulation and Coding Scheme (MCS:Modulation and Coding
Scheme) sequencing indicates.The information of the user group can be sent in advance user equipment for example, by high-level signaling.Such as
The all possible uplink frame structure of the group membership of the user group, group identifier etc..
It is other in the user group in order to enable a user equipment in user group does not succeed in the case where busy channel
User equipment can also carry out resource contention in unauthorized frequency range.Base station needs to establish the user of a unauthorized frequency range of competition
Group.
User equipment in the user group can have different interference environments.For example, two user equipmenies in user group
The distance between far make interference environment between the two user equipmenies different as far as possible.
User equipment in the user group is able to detect the user equipment with different access priorities in the user group
Preserved signal, so that user equipment determines whether unauthorized frequency range has been occupied by other user equipmenies of the user group.
In order to establish user group or re-establish user group, such as serving BS can be for example, by high-level signaling notifying cell
Interior some user equipmenies are measured in specific time/frequency resource (such as some subframe) and are sent by intra-cell users equipment
Preserved signal.Some user equipmenies report the measurement result of preserved signal, example for example, by high-level signaling to serving BS
Detection label/preserved signal intensity/annoyance level such as on each subband.The survey reported based on some user equipmenies
Amount is as a result, serving BS determines the user equipment in user group and the user group.Serving BS may be based on some users
The measurement result and scheduling requirement that equipment is reported determine the user equipment in user group and the user group.Serving BS may be used also
With according to the measurement result of preserved signal, customer position information etc. is grouped user, so that the user equipment in user group
With different interference environments.
In addition, user equipment, which can be improved, in serving BS sends the power of preserved signal to increase the detectable of preserved signal
Property, so that the channel and interference environment between the user equipment in same user group have identification degree, this is conducive to
Improve the chance that user group occupies unauthorized frequency range uplink.
Fig. 2 shows according to an embodiment of the invention in a user device based on the resource contention of access priority
Flow chart.
In step s 201, user equipment receives the uplink scheduling license from serving BS, uplink scheduling license
The access priority in unauthorized frequency range including the user equipment.
Optionally, uplink scheduling license is the specific uplink scheduling license of the user equipment.
Optionally, uplink scheduling license is the uplink scheduling license that user group is shared, and uplink scheduling license includes using
The access priority of each user equipment in the group of family.
In step S202, which configures the uplink frame structure collection of the unauthorized frequency range according to the access priority
Uplink frame structure in conjunction.
The uplink frame structured set can be pre-configured by system, or be sent out in the cell downlink broadcast channel of the serving BS
It send, or is sent in downlink broadcast channel in the user group of the serving BS.
The uplink frame structure includes that free timeslot, CCA time slot, preserved signal time slot and maximum channel occupy time slot.
The uplink frame structure and the access priority are associated.Specifically, the clear channel assessment (CCA) in the uplink frame structure
Time slot index it is related to the access priority.The access priority of the user equipment is higher, the uplink frame knot of the user equipment
The time slot index of the clear channel assessment (CCA) of structure is smaller.
For example, as shown in Figure 1, user equipment 1,2 and 3 corresponds respectively to the uplink frame structure A of high access priority, in connect
Enter the uplink frame structure B of priority, the uplink frame structure C of low access priority.
In step S203, which is based on its uplink frame structure, in unauthorized frequency range in blind examination user group
Other preserved signals of other user equipmenies.
Other preserved signals is than the user equipment there is the user equipment of higher priority to be sent out in the user group
The preserved signal sent.
In step S204, which is based on uplink frame structure and carries out clear channel assessment (CCA) to unauthorized frequency range:
If the user equipment does not have blind examination to the result of other preserved signals and clear channel assessment (CCA) to be idle, non-
The first preserved signal is sent in authorized spectrum band and carries out the transmitting uplink data of the user equipment；
If the user equipment blind examination arrived other preserved signals or the clear channel assessment (CCA) result be it is busy, stop
Compete unauthorized frequency range.
First preserved signal is the specific preserved signal of cell, and serving BS can determine and occupy unauthorized frequency
The uplink frame structure of the user equipment of the user equipment and unauthorized frequency range of occupancy of section.
For example, as shown in Figure 1, user equipment 1 carries out idle channel before the free timeslot of uplink frame structure A terminates comments
Estimate, it is assumed that the result of clear channel assessment (CCA) be it is busy, then user equipment 1 stops competing unauthorized frequency range.Meanwhile user equipment 2
The specific preserved signal detection of such as cell is carried out in the preserved signal time slot of uplink frame structure A with user equipment 3.Due to user
The preserved signal time slot that equipment 1 is not sent in uplink frame structure A sends preserved signal, and user equipment 2 and user equipment 3 do not have
Detect preserved signal transmitted by the user equipment in user group, uplink frame structure B of the user equipment 2 in middle access priority
Clear channel assessment (CCA) time slot carry out clear channel assessment (CCA), user equipment 3 carries out pre- in the preserved signal time slot of uplink frame structure B
Stay signal detection.If the result of the clear channel assessment (CCA) of user equipment 2 be free time, user equipment 2 clear channel assessment (CCA) it
Afterwards, preserved signal is sent in the preserved signal time slot of uplink frame structure B, and enterprising in unauthorized frequency range after sending preserved signal
Row transmitting uplink data.User equipment 3 is detected in the preserved signal time slot of uplink frame structure B and is sent by user equipment 2
Preserved signal, user equipment 3 stop competing unauthorized frequency range.
Fig. 3 show it is according to an embodiment of the invention in serving BS based on the resource contention of access priority
Flow chart；
In step S301, serving BS is established or rebuilds user group, the user equipment in the user group by pre-authorization with
Compete unauthorized frequency range.
Specifically, the user equipment in serving BS notifying cell measures preserved signal and reports measurement result.Service base
It stands the measurement result reported according to the user equipment in cell, determines the user equipment in user group and user group.The use
User equipment in the group of family can have different interference environments.User equipment in the user group is able to detect in the user group
The preserved signal of user equipment with different access priorities.
In step s 302, user equipment of the serving BS into the user group sends uplink scheduling license, the uplink tune
Degree license includes the access priority in unauthorized frequency range of the user equipment.
In step S303, the preserved signal of the user equipment transmission in the serving BS blind examination user group.
In step s 304, serving BS determines that the user for occupying unauthorized frequency range sets according to the preserved signal received
The uplink frame structure of user equipment that is standby and occupying unauthorized frequency range.
For example, serving BS is after establishing user group, base station is according to the access priority of the user equipment in user group
Know the uplink frame structured set of user group.Serving BS is blind according to all uplink frame structures in all uplink frame structured sets
The time slot for the preserved signal that user equipment in inspection user group may be sent.If detecting preserved signal, serving BS is determined
It occupies the user equipment of unauthorized frequency range and occupies the uplink frame structure of the user equipment of unauthorized frequency range.For example, if service
Base station detects that the preserved signal time slot of uplink frame structure B has a preserved signal, serving BS based on the preserved signal received,
Determine that user equipment 2 occupies unauthorized frequency range and is uplink frame structure B, so that base station can determine opening for transmitting uplink data
Time beginning simultaneously carries out corresponding upstream data detection.
Fig. 4 shows the schematic device of the resource contention based on access priority of embodiment according to fig. 2.Device
400 for example can be or may be implemented above in association with the user equipment in embodiment described in Fig. 2.
As shown in figure 4, device 400 includes receiving unit 401, it is used to receive the uplink scheduling from serving BS and is permitted
Can, which includes the access priority in unauthorized frequency range of the user equipment；Configuration unit 402, is used for root
Enter the uplink frame structure in the uplink frame structured set that priority is the user device configuration unauthorized frequency range according to this；First is blind
Unit 403 is examined, is used for based on the uplink frame structure, other user equipmenies of the blind examination in the user group in the unauthorized frequency range
Other preserved signals；Assessment unit 404 in based on the uplink frame structure to the authorized spectrum band carry out clear channel assessment (CCA)；And
Judging unit 405 is used to determine whether other preserved signals to have been arrived in blind examination to the user equipment, if the user sets
For being the free time without blind examination to the result of other preserved signals and the clear channel assessment (CCA), then in the unauthorized frequency range
The upper transmitting uplink data for sending the first preserved signal and carrying out the user equipment；If institute has been arrived in the user equipment blind examination
State other preserved signals or the clear channel assessment (CCA) result be it is busy, then stop competing the unauthorized frequency range.
Fig. 5 shows the schematic device of the resource contention based on access priority of the embodiment according to Fig. 3.Device
500 for example can be or may be implemented above in association with the user equipment in embodiment described in Fig. 3.
As shown in figure 5, device 500 includes that user group establishes unit 501, it is used to establish or rebuild user group, the user
User equipment in group is competed unauthorized frequency range by pre-authorization；Transmission unit 502, the user being used for into the user group set
Preparation serves row scheduling grant, and uplink scheduling license includes the access priority in unauthorized frequency range of the user equipment；The
Two blind examination units 503, the preserved signal that the user equipment being used in the blind examination user group is sent；And preserved signal receives list
Member 504 is used to determine the user equipment for occupying unauthorized frequency range according to the preserved signal received and occupy unauthorized frequency range
User equipment uplink frame structure.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
How from the point of view of, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that one word of " comprising " not
Exclude other elements and steps, and wording "one" be not excluded for plural number.The multiple element stated in device claim can also
To be implemented by one element.The first, the second equal words are used to indicate names, and are not indicated any particular order.
Claims (16)
1. a kind of method of the resource contention based on access priority in a user device, method includes the following steps:
A. the uplink scheduling license from serving BS is received, the uplink scheduling license includes the user equipment non-
The access priority of authorized spectrum band；
B. the uplink frame structure of the uplink of the unauthorized frequency range, the uplink are configured to according to the access priority
Frame structure is one of uplink frame structured set frame structure；
C. be based on the uplink frame structure, other user equipmenies in the unauthorized frequency range in blind examination user group it is other pre-
Signal is stayed, wherein other preserved signals have the user of higher priority for user equipment described in the ratio in the user group
Preserved signal transmitted by equipment；And
D. clear channel assessment (CCA) is carried out to the unauthorized frequency range based on the uplink frame structure:
If the user equipment does not have blind examination to the result of other preserved signals and the clear channel assessment (CCA) to be idle,
The first preserved signal is then sent in the unauthorized frequency range and carries out the transmitting uplink data of the user equipment；
If the user equipment blind examination arrived other preserved signals or the clear channel assessment (CCA) result be it is busy,
Stop competing the unauthorized frequency range.
2. the method according to claim 1, wherein uplink scheduling license is that the user equipment is specific
Uplink scheduling license.
3. the method according to claim 1, wherein the uplink scheduling license be the user group share it is upper
Row scheduling grant, the uplink scheduling license include the access priority of each user equipment in the user group.
4. the method according to claim 1, wherein the uplink frame structure include free timeslot, CCA time slot,
Preserved signal time slot and maximum channel occupy time slot.
5. the method according to claim 1, wherein the uplink frame structure is related to the access priority
Connection.
6. according to the method described in claim 5, it is characterized in that, the time slot of the clear channel assessment (CCA) in the uplink frame structure
It indexes related to the access priority.
7. according to the method described in claim 6, it is characterized in that, the access priority of the user equipment is higher, it is described on
The time slot index of the clear channel assessment (CCA) of row frame structure is smaller.
8. the method according to claim 1, wherein the time slot of first preserved signal is set than the user
Before the time slot of the clear channel assessment (CCA) of the low user equipment of standby access priority terminates.
9. the method according to claim 1, wherein the uplink frame structured set is pre-configured by system, or by
The serving BS is sent in the cell downlink broadcast channel of the serving BS, or by the serving BS in the user
It is sent in downlink broadcast channel in group.
10. the method according to claim 1, wherein first preserved signal is that cell specifically reserves letter
Number, make the base station determine the user equipment for occupying the unauthorized frequency range and occupies the user equipment of unauthorized frequency range
Uplink frame structure.
11. a kind of method of the resource contention in serving BS based on access priority, the described method comprises the following steps:
I. user group is established or rebuilds, the user equipment in the user group is competed unauthorized frequency range by pre-authorization；
Ii. the user equipment into the user group sends uplink scheduling license, and the uplink scheduling license includes the user
The access priority in unauthorized frequency range of equipment；
Iii. the preserved signal that the user equipment in user group described in blind examination is sent；
Iv. it according to the preserved signal received, determines the user equipment for occupying unauthorized frequency range and occupies unauthorized frequency range
User equipment uplink frame structure.
12. according to the method for claim 11, which is characterized in that the step i includes:
It notifies the user equipment in the cell of the serving BS to measure preserved signal and reports measurement result；
According to the measurement result that the user equipment in the cell of the serving BS is reported, the user group and described is determined
User equipment in user group.
13. according to the method for claim 12, which is characterized in that the user equipment in the user group has different do
Disturb environment.
14. according to the method for claim 11, which is characterized in that the user equipment in the user group is able to detect described
The preserved signal of the user equipment with different access priorities in user group.
15. a kind of device of the resource contention based on access priority in a user device, described device include:
Receiving unit is used to receive the uplink scheduling license from serving BS, and the uplink scheduling license includes described
The access priority in unauthorized frequency range of user equipment；
Configuration unit is used to be configured to the uplink frame of the uplink of the unauthorized frequency range according to the access priority
Structure, the uplink frame structure are one of uplink frame structured set frame structure；
First blind examination unit is used for based on the uplink frame structure, and blind examination is in the user group in the unauthorized frequency range
Other preserved signals of other user equipmenies, wherein other preserved signals are user equipment described in the ratio in the user group
Preserved signal transmitted by user equipment with higher priority；
Assessment unit is used to carry out clear channel assessment (CCA) to the unauthorized frequency range based on the uplink frame structure；And
Judging unit is used to determine whether other preserved signals to have been arrived in blind examination to the user equipment, if the user
Equipment does not have blind examination to the result of other preserved signals and the clear channel assessment (CCA) to be idle, then in the unauthorized frequency
The first preserved signal is sent in section and carries out the transmitting uplink data of the user equipment；If the user equipment blind examination is arrived
The result of other preserved signals or the clear channel assessment (CCA) be it is busy, then stop competing the unauthorized frequency range.
16. a kind of device of the resource contention in serving BS based on access priority, described device include:
User group establishes unit, is used to establish or rebuild user group, the user equipment in the user group is by pre-authorization with competing
Strive unauthorized frequency range；
Transmission unit, the user equipment being used for into the user group send uplink scheduling license, the uplink scheduling license
The access priority in unauthorized frequency range including the user equipment；
Second blind examination unit, the preserved signal that the user equipment being used in user group described in blind examination is sent；And
Preserved signal receiving unit is used to determine the user equipment for occupying unauthorized frequency range according to the preserved signal received
With the uplink frame structure for the user equipment for occupying 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 |
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| CN201510250280.6A CN106304369B (en) | 2015-05-15 | 2015-05-15 | The method and device of resource contention based on access priority |
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| CN106304369A CN106304369A (en) | 2017-01-04 |
| CN106304369B true CN106304369B (en) | 2019-08-23 |
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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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| CN (1) | CN106304369B (en) |
| TW (1) | TW201701703A (en) |
| WO (1) | WO2016185275A1 (en) |
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| CN106686738A (en) * | 2015-11-05 | 2017-05-17 | 索尼公司 | Apparatus and method on base station side and user equipment side, and wireless communication system |
| US10327261B2 (en) * | 2017-01-26 | 2019-06-18 | Qualcomm Incorporated | Directional listen before talk scheme |
| CN106922032B (en) * | 2017-02-27 | 2019-12-24 | 北京佰才邦技术有限公司 | Data time domain transmission method, control method, terminal, base station and baseband chip |
| WO2018153006A1 (en) * | 2017-02-27 | 2018-08-30 | 华为技术有限公司 | Unlicensed spectrum contention method and device |
| CN106937401A (en) * | 2017-03-07 | 2017-07-07 | 电子科技大学 | A MAC access control method for cognitive radio Adhoc network |
| US11622381B2 (en) * | 2017-05-03 | 2023-04-04 | Qualcomm Incorporated | Control information update for dynamic time-division duplexing (TDD) |
| KR102315778B1 (en) | 2017-05-04 | 2021-10-22 | 삼성전자 주식회사 | Method and apparatus for identifying uplink transmission timing in wirelss communication system |
| CN108882340A (en) * | 2017-05-14 | 2018-11-23 | 深圳市金立通信设备有限公司 | A kind of unlicensed band accidental access method and equipment |
| US11229051B2 (en) | 2017-09-14 | 2022-01-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for carrier sensing |
| US10863542B2 (en) | 2017-09-19 | 2020-12-08 | Qualcomm Incorporated | Listen-before-talk and channel reservation for millimeter wave systems |
| 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 |
| CN109075878B (en) * | 2018-08-10 | 2021-01-26 | 北京小米移动软件有限公司 | Monitoring method, device, equipment and storage medium |
| US11968713B2 (en) | 2018-09-26 | 2024-04-23 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving signal in wireless communication system |
| 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 |
| WO2022027292A1 (en) * | 2020-08-05 | 2022-02-10 | Apple Inc. | Techniques for channel access by a user device with uplink (ul) cancellation in unlicensed bands |
| CN112770270A (en) * | 2020-12-23 | 2021-05-07 | 广州技象科技有限公司 | Data transmission method, device, system and storage medium based on channel reservation |
| CN115696624A (en) * | 2021-07-21 | 2023-02-03 | 中兴通讯股份有限公司 | Channel sharing method, device and storage medium |
| CN117528821A (en) * | 2022-07-29 | 2024-02-06 | 华为技术有限公司 | WiFi communication method, device and system |
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| WO2014200951A2 (en) * | 2013-06-11 | 2014-12-18 | Qualcomm Incorporated | Lte/lte-a uplink carrier aggregation using unlicensed spectrum |
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| Publication number | Publication date |
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| WO2016185275A1 (en) | 2016-11-24 |
| CN106304369A (en) | 2017-01-04 |
| TW201701703A (en) | 2017-01-01 |
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