CN109041241A - SR resource allocation methods and device - Google Patents
SR resource allocation methods and device Download PDFInfo
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- CN109041241A CN109041241A CN201710439895.2A CN201710439895A CN109041241A CN 109041241 A CN109041241 A CN 109041241A CN 201710439895 A CN201710439895 A CN 201710439895A CN 109041241 A CN109041241 A CN 109041241A
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- resource
- preempted
- allocated
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- preset
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Classifications
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- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
Abstract
The embodiment of the invention discloses a kind of SR resource allocation methods and devices, which comprises determines the SR resource of the user terminal UE being preempted in access cell；It is the UE distribution SR resource of SR resource to be allocated from the SR resource that can be preempted.The resource utilization of LTE communication system can be improved by being that the UE of SR resource to be allocated distributes SR resource from the SR resource for the UE that can be preempted in the embodiment of the present invention in this way.
Description
Technical field
The present embodiments relate to wireless communication technology field more particularly to a kind of SR resource allocation methods and device.
Background technique
In long term evolution (Long Term Evolution, LTE) communication system, user terminal (User
Equipment, UE) it needs to tell whether base station needs uplink by uplink scheduling request (Scheduling Request, SR)
Resource, that is, physical uplink control channel (Physical Uplink Control CHannel, PUCCH), for use in
Uplink Shared Channel (UL-SCH) transmits data.
But the PUCCH resource for transmitting SR is not used to user and transmits data, and as cell supports the increasing of number of users
Add, SR resource increases therewith, means that uplink leaves Physical Uplink Shared Channel (Physical Uplink Shared in this way
Channel, PUSCH) resource block (Resource Block, RB) reduce, the resource utilization of entire LTE communication system is therewith
Decline.
Especially in the case where LTE communication system band width configuration is small bandwidth scenarios, band system band resource itself is limited, and SR resource is big
Amount occupies so that whole system uplink throughput declines.In addition in carrier aggregation scene, since the SR of major-minor carrier wave is in master
Serving cell is sent, and a large amount of RB resource of SR resource occupation influences system uplink spectrum efficiency.
Summary of the invention
The present invention provides a kind of SR resource allocation methods and device, to improve the resource utilization of LTE communication system.
In a first aspect, the embodiment of the invention provides a kind of SR resource allocation methods, comprising:
Determine the SR resource of the user terminal UE being preempted in access cell；
It is the UE distribution SR resource of SR resource to be allocated from the SR resource that can be preempted.
Second aspect, the embodiment of the invention also provides a kind of SR resource allocation devices, comprising:
SR resource determination module, for determining the SR resource of the user terminal UE being preempted in access cell；
SR resource distribution module, the UE for from the SR resource that can be preempted being SR resource to be allocated distribute SR resource.
The embodiment of the present invention by be from the SR resource for the UE that can be preempted SR resource to be allocated UE distribute SR resource,
The resource utilization of LTE communication system can be improved in this way.
Detailed description of the invention
Fig. 1 is the flow chart of one of embodiment of the present invention one SR resource allocation methods；
Fig. 2 is the flow chart of one of embodiment of the present invention two SR resource allocation methods；
Fig. 3 is the structure chart of one of embodiment of the present invention three SR resource allocation device.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of flow chart for SR resource allocation methods that the embodiment of the present invention one provides, and the present embodiment is applicable to
The case where carrying out SR resource allocation to UE, this method can be executed by SR resource allocation device provided in an embodiment of the present invention,
Software can be used in the device or the mode of hardware is realized, which is integrated in mobile management nodes (Master of
Mechanical Engineering, MME) in.The executing subject of the present embodiment can provide to be integrated with the embodiment of the present invention
SR resource allocation device MME, as shown in Figure 1, specifically including:
S101, the SR resource for determining the user terminal UE being preempted accessed in cell.
Specifically, the SR resource for the user terminal UE that can be preempted in access cell can be marked in advance, there is the change of UE business
When more or when new UE access cell or UE switch in cell, triggering executes the operation of this step.Or, it is further, there is UE
When business change or when new UE access cell or UE switch in cell, and when being assigned in cell without remaining SR resource, touching
Hair executes the operation of this step.
S102, be from the SR resource that can be preempted SR resource to be allocated UE distribution SR resource.
Wherein, the SR resource that can be preempted may be one or more.The UE of SR resource to be allocated can also be one or more
It is a.
When the UE of the SR resource and SR resource to be allocated that can be preempted is one, then directly the SR resource allocation is given
The UE of SR resource to be allocated.When the UE that the SR resource that can be preempted is SR resource multiple, to be allocated is one, need from can quilt
A SR resource allocation is chosen in the SR resource seized to the UE of SR resource to be allocated.When the SR resource that can be preempted be it is multiple,
When the UE of SR resource to be allocated is also multiple, need to choose from the SR resource that can be preempted corresponding with the UE of SR resource to be allocated
The SR resource of number is respectively allocated to the UE of multiple SR resources to be allocated.
A kind of optional embodiment of this step is: when the UE of SR resource to be allocated is 1, then basis can be preempted
The SR resource of highest priority is reassigned to the UE of SR resource to be allocated by the priority of SR resource.When SR resource to be allocated
UE when being multiple, then according to the priority of SR resource can be preempted, it is higher and with SR resource to be allocated to choose priority
The identical SR resource of UE number is reassigned to the UE of multiple SR resources to be allocated.
Before executing this step, it is thus necessary to determine that the priority of the SR resource of the UE being preempted in access cell.Tool
Body, it according to the service attribute of each UE, can determine the priority of the SR resource of the UE being preempted in access cell.Wherein,
Service attribute may include following at least one: continuity, data packet uniformity and handling capacity.For example, if the SR that can be preempted
Resource calculates its priority that can be preempted according to the service attribute and real data continuity of its corresponding UE.It can specifically be robbed
The priority calculation method accounted for can be weighted and averaged, after then normalizing using service attribute and real data continuity grade
It obtains.Alternatively, for the SR resource that can be preempted, if its corresponding UE uplink has been started up continuous business data transmission,
Priority can be preempted and be set as highest；If its corresponding UE uplink does not initiate business data transmission also, priority can be preempted
It is set as minimum；The priority that is preempted of remaining SR resource can be according to the continuity difference of transmitting uplink data business datum point
It is not arranged.
Another optional embodiment of this step is: first according to the service attribute for the UE that can be preempted, to can be robbed
The SR resource accounted for is grouped, and the grouping is greater than the first SR resource group and the time domain week of the first preset threshold comprising the time domain period
Twoth SR resource group of the phase less than the second preset threshold；Then, it is determined that the service attribute of the UE of the SR resource to be allocated；According to
The service attribute chooses SR resource allocation to the SR resource to be allocated from the first SR resource group or the 2nd SR resource group
UE。
Wherein, the first preset threshold is greater than the second preset threshold, and the value of the first preset threshold and the second preset threshold can
With identical, can also be different.
Wherein, MME is when initiation UE business is established, in business service quality (Quality of Service, QoS) attribute
Middle carrying service attribute, the service attribute include following at least one: continuity, data packet uniformity and handling capacity.
Specifically, the SR total number resource of cell can be made to increase due to increasing the time domain period of SR resource, can support more
More UE.It can choose and distributed in different SR resource groups based on service attribute accordingly, the SR resource of cell is divided into two groups
One the 2nd SR resource group for conventional resource, that is, time domain period less than the second preset threshold, another is time domain large period group
The time domain period is greater than the first SR resource group of the first preset threshold.Wherein, conventional resource group is no continuity for service attribute
The UE of strong business, the UE that time domain large period group is used to have the strong business of continuity.Because of the utilization rate of the strong business SR of continuity
Lower, even if being configured with, the time domain period is biggish, only will affect the time delay of the packet of continuous data packet first, and opposite QoS influences smaller.
For a small amount of scene, if a UE has been set up continuous business, but actual uplink has no any data and passes
It is defeated, if after SR resource is occupied, when which initiates transmitting uplink data again, carrying out conventional random access uplink synchronous stream
Journey obtains uplink authorization by random access.
Another optional embodiment of this step is: the SR resource of the first UE is chosen from the SR resource that can be preempted,
Control layer (Multiple is intervened by wireless heterogeneous networks (Radio Resource Control, RRC) reallocation message or media
Access Control Protocol, MAC) Downlink Control Information notify the first UE discharge SR resource；By the SR resource weight of release
It is newly assigned to the UE of SR resource to be allocated.
In addition, if the SR resource of UE can not be all preempted in cell, the SR resource point of the UE of SR resource to be allocated
With failure, which will use conventional random access to complete uplink scheduling request without SR resource.
The present embodiment is by being that the UE of SR resource to be allocated distributes SR resource from the SR resource for the UE that can be preempted, in this way
The resource utilization of LTE communication system can be improved.
Embodiment two
Fig. 2 is a kind of flow chart of SR resource allocation methods provided by Embodiment 2 of the present invention, and the present embodiment is in above-mentioned reality
On the basis of applying example, following steps are further increased: according to the service attribute of each UE in access cell, determining the SR money of each UE
Whether source is that can be preempted resource；It is then that can be preempted resource by corresponding SR resource mark if resource can be preempted, if
It can not be preempted resource, then be that can not be preempted resource by corresponding SR resource mark.As shown in Fig. 2, specifically including:
S201, according to access cell in each UE service attribute, determine whether the SR resource of each UE is that can be preempted money
Source.
Wherein, the service attribute includes following at least one: continuity, data packet uniformity and handling capacity.Wherein connect
Continuous property is business datum continuity.
A kind of optional embodiment of this step is, if the service attribute of UE meets the following conditions: continuous strength is greater than pre-
If the uniform handling capacity of intensity threshold, data packet is greater than preset throughputs threshold value, it is determined that corresponding SR resource is that can be preempted
Resource；Or, if the service attribute of UE meets the following conditions: continuous strength is less than preset strength threshold value, data packet unevenly and gulps down
The amount of spitting is less than preset throughputs threshold value, it is determined that corresponding SR resource is that can not be preempted resource.
If resource can be preempted, S202 is thened follow the steps, if resource can not be preempted, thens follow the steps S203.
S202, by corresponding SR resource mark be can be preempted resource.
S203, by corresponding SR resource mark be can not be preempted resource.
S204, SR resource is distributed from labeled as the UE in the SR resource that can be preempted being SR resource to be allocated.
Since the main function of SR resource is that UE is allowed to initiate scheduling request, apply for uplink authorization；It is continuous for there is uplink
Under property data transmission scenarios, UE not will use SR resource, that is, SR resource is in idle condition, therefore be not required in the meantime
SR resource is distributed to UE.Whether being preempted for SR resource determined according to UE service attribute based on this characteristic for the present embodiment, will
The SR resource mark of the strong UE of business continuance is that can be occupied by other UE, can reduce the system resource of SR occupancy, is improved
The utilization rate of SR resource, and then lifting system ascending resource utilization rate, enhance power system capacity, promote small bandwidth configuration utility
Value.
Embodiment three
Fig. 3 is a kind of structural schematic diagram for SR resource allocation device that the embodiment of the present invention three provides, and the present embodiment can fit
The case where for carrying out SR resource allocation to UE, which can be used software or the mode of hardware is realized, which is integrated in shifting
In dynamic management node (Master of Mechanical Engineering, MME).As shown in figure 3, the specific structure of the device
It is as follows: SR resource determination module 31 and SR resource distribution module 32.
SR resource determination module 31 is for determining the SR resource of the user terminal UE being preempted in access cell；
SR resource distribution module 32 is for being that the UE of SR resource to be allocated distributes SR resource from the SR resource that can be preempted.
SR resource allocation device described in the present embodiment is used to execute SR resource allocation methods described in the various embodiments described above,
Its technical principle is similar with the technical effect of generation, and which is not described herein again.
On the basis of the above embodiments, described device further include: SR resource mark module 33；
SR resource mark module 33 is used to determine that the SR resource of each UE is according to the service attribute of each UE in access cell
No is that can be preempted resource；It is then that can be preempted resource by corresponding SR resource mark, if can not if resource can be preempted
It is preempted resource, then is that can not be preempted resource by corresponding SR resource mark.
On the basis of the above embodiments, the service attribute includes following at least one: continuity, data packet uniformity
And handling capacity.
On the basis of the above embodiments, the SR resource mark module 33 is specifically used for:
If the service attribute of UE meets the following conditions: continuous strength is greater than that preset strength threshold value, data packet is uniform handles up
Amount is greater than preset throughputs threshold value, it is determined that corresponding SR resource is that can be preempted resource；Or, if UE service attribute meet with
Lower condition: continuous strength is less than preset strength threshold value, data packet unevenly and handling capacity is less than preset throughputs threshold value, it is determined that
Corresponding SR resource is that can not be preempted resource.
On the basis of the above embodiments, the SR resource distribution module 32 is specifically used for: according to can be preempted SR resource
Priority, the SR resource of highest priority is reassigned to the UE of SR resource to be allocated.
On the basis of the above embodiments, described device further include: SR resource grouping module 34；
SR resource grouping module 34 is used for the service attribute according to the UE that can be preempted, and carries out to the SR resource that can be preempted
Grouping, the grouping are default less than second greater than the first SR resource group of the first preset threshold and time domain period comprising the time domain period
2nd SR resource group of threshold value；
Correspondingly, the SR resource distribution module 32 is specifically used for:
Determine the service attribute of the UE of the SR resource to be allocated；According to the service attribute from the first SR resource group or
SR resource allocation is chosen in two SR resource groups to the UE of the SR resource to be allocated.
On the basis of the above embodiments, the SR resource distribution module 32 is specifically used for: from the SR resource that can be preempted
The middle SR resource for choosing the first UE intervenes control layer MAC downlink control letter by radio resource control RRC reallocation message or media
Breath notifies the first UE to discharge SR resource；The SR resource of release is reassigned to the UE of SR resource to be allocated.
On the basis of the above embodiments, the UE of the SR resource to be allocated be it is following any one: the UE of business change,
The UE of the new access cell and UE for switching in cell.
SR resource allocation device described in the various embodiments described above is for executing SR resource allocation described in the various embodiments described above
The technical effect of method, technical principle and generation is similar, and which is not described herein again.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (16)
1. a kind of SR resource allocation methods characterized by comprising
Determine the SR resource of the user terminal UE being preempted in access cell；
It is the UE distribution SR resource of SR resource to be allocated from the SR resource that can be preempted.
2. the method according to claim 1, wherein the method also includes:
According to the service attribute of each UE in access cell, determine whether the SR resource of each UE is that can be preempted resource；
It is then that can be preempted resource by corresponding SR resource mark, if resource can not be preempted, then if resource can be preempted
It is that can not be preempted resource by corresponding SR resource mark.
3. according to the method described in claim 2, it is characterized in that, the service attribute includes following at least one: continuity,
Data packet uniformity and handling capacity.
4. according to the method described in claim 2, it is characterized in that, it is described according to access cell in each UE service attribute,
Whether the SR resource for determining each UE is that can be preempted resource to include:
If the service attribute of UE meets the following conditions: it is big that continuous strength is greater than preset strength threshold value, the uniform handling capacity of data packet
In preset throughputs threshold value, it is determined that corresponding SR resource is that can be preempted resource；
Or, if the service attribute of UE meets the following conditions: continuous strength is less than preset strength threshold value, data packet unevenly and handles up
Amount is less than preset throughputs threshold value, it is determined that corresponding SR resource is that can not be preempted resource.
5. the method according to claim 1, wherein described is SR money to be allocated from the SR resource that can be preempted
The UE in source distributes SR resource
According to the priority that can be preempted SR resource, the SR resource of highest priority is reassigned to SR resource to be allocated
UE。
6. the method according to claim 1, wherein the method also includes:
According to the service attribute for the UE that can be preempted, the SR resource that can be preempted is grouped, the grouping includes time domain week
Phase be greater than the first preset threshold the first SR resource group and the time domain period less than the second preset threshold the 2nd SR resource group；
Correspondingly, described is that the UE distribution SR resource of SR resource to be allocated includes: from the SR resource that can be preempted
Determine the service attribute of the UE of the SR resource to be allocated；
SR resource allocation is chosen from the first SR resource group or the 2nd SR resource group according to the service attribute to described to be allocated
The UE of SR resource.
7. the method according to claim 1, wherein described is SR money to be allocated from the SR resource that can be preempted
The UE in source distributes SR resource
The SR resource that the first UE is chosen from the SR resource that can be preempted, passes through radio resource control RRC reallocation message or media
Intervention control layer MAC Downlink Control Information notifies the first UE to discharge SR resource；
The SR resource of release is reassigned to the UE of SR resource to be allocated.
8. method according to claim 1-7, which is characterized in that the UE of the SR resource to be allocated is following
Anticipate one kind: the UE of business change, new access cell UE and switch in the UE of cell.
9. a kind of SR resource allocation device characterized by comprising
SR resource determination module, for determining the SR resource of the user terminal UE being preempted in access cell；
SR resource distribution module, the UE for from the SR resource that can be preempted being SR resource to be allocated distribute SR resource.
10. device according to claim 9, which is characterized in that described device further include:
SR resource mark module, for according to access cell in each UE service attribute, determine each UE SR resource whether be
Resource can be preempted；It is then that can be preempted resource by corresponding SR resource mark, if can not be robbed if resource can be preempted
Resource is accounted for, then is that can not be preempted resource by corresponding SR resource mark.
11. device according to claim 10, which is characterized in that the service attribute includes following at least one: continuous
Property, data packet uniformity and handling capacity.
12. device according to claim 10, which is characterized in that the SR resource mark module is specifically used for:
If the service attribute of UE meets the following conditions: it is big that continuous strength is greater than preset strength threshold value, the uniform handling capacity of data packet
In preset throughputs threshold value, it is determined that corresponding SR resource is that can be preempted resource；Or, if the service attribute of UE meets following item
Part: continuous strength is less than preset strength threshold value, data packet unevenly and handling capacity is less than preset throughputs threshold value, it is determined that corresponding
SR resource be can not be preempted resource.
13. device according to claim 9, which is characterized in that the SR resource distribution module is specifically used for: according to can quilt
The SR resource of highest priority is reassigned to the UE of SR resource to be allocated by the priority for seizing SR resource.
14. device according to claim 9, which is characterized in that described device further include:
SR resource grouping module is grouped the SR resource that can be preempted for the service attribute according to the UE that can be preempted,
The grouping is comprising the time domain period greater than the first SR resource group of the first preset threshold and time domain period less than the second preset threshold
The 2nd SR resource group；
Correspondingly, the SR resource distribution module is specifically used for:
Determine the service attribute of the UE of the SR resource to be allocated；According to the service attribute from the first SR resource group or the 2nd SR
SR resource allocation is chosen in resource group to the UE of the SR resource to be allocated.
15. device according to claim 9, which is characterized in that the SR resource distribution module is specifically used for: from can be robbed
The SR resource that the first UE is chosen in the SR resource accounted for intervenes control layer MAC by radio resource control RRC reallocation message or media
Downlink Control Information notifies the first UE to discharge SR resource；The SR resource of release is reassigned to the UE of SR resource to be allocated.
16. according to the described in any item devices of claim 9-15, which is characterized in that the UE of the SR resource to be allocated is following
Any one: the UE of business change, the new UE for accessing cell and the UE for switching in cell.
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| CN201710439895.2A CN109041241A (en) | 2017-06-12 | 2017-06-12 | SR resource allocation methods and device |
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| CN201710439895.2A CN109041241A (en) | 2017-06-12 | 2017-06-12 | SR resource allocation methods and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112312566A (en) * | 2020-11-18 | 2021-02-02 | 中国联合网络通信集团有限公司 | Communication method, device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112312566A (en) * | 2020-11-18 | 2021-02-02 | 中国联合网络通信集团有限公司 | Communication method, device and system |
| CN112312566B (en) * | 2020-11-18 | 2024-02-02 | 中国联合网络通信集团有限公司 | Communication method, device and system |
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Application publication date: 20181218 |