CN102917455B - A kind of uplink semi-persistent scheduling resource allocation methods and device - Google Patents
A kind of uplink semi-persistent scheduling resource allocation methods and device Download PDFInfo
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- CN102917455B CN102917455B CN201110217794.3A CN201110217794A CN102917455B CN 102917455 B CN102917455 B CN 102917455B CN 201110217794 A CN201110217794 A CN 201110217794A CN 102917455 B CN102917455 B CN 102917455B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1816—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of the same, encoded, message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/04—Wireless resource allocation
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- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention discloses a kind of uplink semi-persistent scheduling of resource distribution method and device, methods described to include：Obtain the available scope of resource of present sub-frame, judge that present sub-frame whether there is the user for needing to activate SPS, if so, being then assigned as principle since the both ends of available scope of resource respectively with subframe n and subframe n+t SPS resources, the starting resource block RB of resource needed for present sub-frame activation SPS is determinedstart, t is the time interval that SPS new biographies and SPS non-self-adaptings retransmit；Based on starting resource block RBstart, dispatching uplink mandate activation SPS, and the available scope of resource of present sub-frame is updated；Judge present sub-frame activation SPS in need user whether scheduling complete, if it is not, the then available resources scope of the present sub-frame based on renewal, is repeated.The present invention solves more up SPS resource conflict problems of UE caused by Gap, improves the transmission performance of up SPS business.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of uplink semi-persistent scheduling of resource distribution method and device.
Background technology
LTE (Long Term Evolution, Long Term Evolution) system carries out user data by the way of shared resource
Scheduling, this scheduling mode can utilize wireless communication resources with high degree, but this mode needs larger control simultaneously
Information overhead.In LTE system, the voice service of whole circuit domains is eliminated, and the instead VoIP business of data field, and talk about
The quantity of sound user is often bigger, and LTE uses shared resource allocation scheduling mode again, and transmission every time is required for the control of correlation
Information processed, because the expense of control information is excessive, so as to limit the number of users that LTE system can be supported simultaneously.Therefore, for
The real-time service that data package size is relatively more fixed, arrival time interval meets certain rule, LTE introduce semi-persistent scheduling
(Semi-Persistent Scheduling, SPS) technology.Briefly, semi-persistent scheduling mode refers to the scheduling biography in LTE
During defeated, eNB (evolved Node B, evolved base station) passes through downlink physical control channel in initial schedule
The current tune of (Physical downlink control channel, PDCCH) instruction user (User Equipment, UE)
Information is spent, UE identifications are semi-persistent schedulings, then current schedule information are preserved, every the fixed cycle on identical running time-frequency resource
Carry out the transmission or reception of the business datum.
In LTE system, measurement interval (Measurement Gap, hereinafter referred GAP) refers to that UE is measured due to needs
And the time of measuring length of data transmit-receive can not be normally carried out, provided according to current LTE related protocols, measurement Gap is also with week
Phase property occurs, and its length is 6ms.According to the regulation of 36.321 agreements, if up SPS initial transmission time slot and measurement
Gap conflicts, and UE can stop the transmission of upstream data, and corresponding time point carries out non-self-adapting re-transmission after Gap terminates.According to
This processing mode, it may result in and the phenomenon that different UE SPS resources clash occur, so that SPS business demodulates
Failure.
Unit of the resource block (Resource Block, RB) as distribution shared service channel resource is used in LTE system,
Such as 20M bandwidth can be divided into 100 RB, these RB can number consecutively be 0,1 ..., 99 since low-frequency range.It is assuming that all
The UE SPS cycles are T ms, and UE1 activates SPS in radio frames A subframe n, and uses synchronous HARQ according to LTE system is up
(Hybrid Automatic Repeat Request, hybrid automatic repeat-request), new biography is fixed as with retransmission time interval
The characteristics of 8ms, if UE2 activates SPS in the radio frames B of (A*10+n+8) modT=(B*10+m) the modT conditions of satisfaction subframe m,
Now because two UE not activate SPS in same subframe, therefore UE1 is from first available resource block of frequency domain low side
(RBlow_available) start the SPS resources of distribution, and UE2 is also from RBlow_availableStart the SPS resources of distribution, when UE1 swashs
SPS new biography time points after SPS living can then cause two UE SPS transmission collisions when just conflicting with its Gap.It is divided to two kinds as follows
Scene illustrates to this conflict.
Scene 1：(radio frames A subframe n) is exactly its Gap first or second son to UE1 SPS periodic points
Frame, as shown in Figure 1.The SPS business that now subframe n fails to be transmitted will correspond to subframe in n+8 and carry out non-self-adapting re-transmission,
And n+8 corresponds to the SPS new biography time points that subframe is exactly UE2, and because two UE SPS resources are all from RBlow_availableOpen
Begin, therefore two UE SPS transmission will clash and cause two UE SPS business can not unsuccessful demodulation.Under this scene
It is less than 4ms because n+8 corresponds to subframe and terminates the sub-frame interval time relative to UE1 Gap, therefore eNB also has no chance under
The adaptive corresponding re-transmission of scheduling n+8 subframes of the mode of uplink authorization is sent out, thus self-adjusted block UE1SPS weights can not be passed through
The mode for passing resource avoids conflicting.
Scene 2：(radio frames A subframe n) is exactly a certain in its Gap rear four subframes to UE1 SPS periodic point
Subframe, as shown in Figure 2.The SPS business that now subframe n fails to be transmitted will correspond to subframe in n+8 and carry out non-self-adapting weight
Pass, same n+8 corresponds to the SPS new biography time points that subframe is exactly UE2, and due to two UE SPS resources be all from
RBlow_availableStart, therefore two UE SPS transmission can clash and cause two UE SPS business can not unsuccessful demodulation.
What it is different from scene 1 is that n+8 corresponds to subframe and terminates the sub-frame interval time relative to UE1 Gap and is more than or equal under this scene
4ms, therefore the scheduling UE1 that eNB can be adaptive by way of issuing uplink authorization is being retransmitted corresponding to n+8 subframes, so as to keep away
When opening UE2 SPS resources, but so this conflict occur equivalent to each UE1 and UE2, UE1 SPS business transmission is required for
ENB issues uplink authorization and completes scheduling, and this original intention that control channel resource is saved with SPS is disagreed.
Because SPS and Gap are periodically to occur, therefore once there is this conflict, subsequent SPS resources also occur
Corresponding conflict, so as to which the demodulation to SPS business causes to have a strong impact on.
The content of the invention
The present invention provides a kind of uplink semi-persistent scheduling of resource distribution method and device, to solve in the prior art due to
Time of measuring Gap presence so that up SPS resources have the problem of conflict between different UE.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is as follows：
On the one hand, the present invention provides a kind of uplink semi-persistent scheduling of resource distribution method, including：
Step 1, the available scope of resource of present sub-frame is obtained, judging that present sub-frame whether there is needs to activate semi-static tune
SPS user is spent, if so, performing step 2；Otherwise, flow terminates；
Step 2, distributed respectively since the both ends of the available scope of resource with subframe n and subframe n+t SPS resources
For principle, determine that present sub-frame activates the starting resource block RB of resource needed for the SPS of the userstart；The t is SPS new biographies
The time interval retransmitted with SPS non-self-adaptings；
Step 3, based on the starting resource block RBstart, dispatching uplink mandate activation SPS, and it is available to present sub-frame
Scope of resource is updated；
Step 4, judge present sub-frame activation SPS in need user whether scheduling is completed, if so, flow terminates,
Otherwise, the available resources scope of the present sub-frame based on renewal, step 2 is performed.
Further, it is described to determine that present sub-frame activates resource needed for the SPS of the user in the method for the invention
Starting resource block RBstartAfterwards, in addition to：
Judge with the RBstartCarry out whether the shared resource size of SPS activation is presetting for starting resource block
In the range of, if so, then performing step 3；Otherwise, step 4 is performed.
Wherein, the scope set in advance includes：Resource shared by activation SPS is no more than the available money of present sub-frame
The half of source range.
Further, in the method for the invention, the step 2 specifically includes：
System Frame Number and subframe numbers according to corresponding to present sub-frame, obtain time point corresponding to present sub-frame；
According to time point corresponding to the present sub-frame, judge whether present sub-frame is certain subframe after t time intervals
Subframe, if so, the starting resource block that the starting resource block then chosen and certain described subframe are chosen is respectively the available money
The resource block at source range both ends；Otherwise, the resource block RB of lower frequency region one end in the available scope of resource is chosenlow_available
Or the resource block RB that frequency domain is high-endhigh_availableFor starting resource block.
Further,, can in present sub-frame by the way of bit map in the step 3 in the method for the invention
In scope of resource will the activation scheduled resource blocks used of SPS labeled as unavailable, money can be used to present sub-frame by realizing
The renewal in source.
Other hand, the present invention also provide a kind of uplink semi-persistent scheduling of resource distributor, including：
Resource status acquisition module, for obtaining the available scope of resource of present sub-frame；
First judge module, for when judging that present sub-frame has the user for needing activation SPS, triggering starting resource
Block acquisition module；
Starting resource block acquisition module, for subframe n and subframe n+t SPS resources respectively from the available resource
The both ends of scope start to be assigned as principle, determine that present sub-frame activates the starting resource block of resource needed for the SPS of the user
RBstart；The t is the time interval that SPS new biographies and SPS non-self-adaptings retransmit；
Scheduler module, for based on the starting resource block RBstart, dispatching uplink mandate activation SPS；
Resource status update module, after the completion of being dispatched in the scheduler module, to the available resource model of present sub-frame
Enclose and be updated；
Second judge module, for judge present sub-frame activation SPS in need user whether scheduling complete, if
It is end operation, otherwise, the available resources scope of the present sub-frame based on renewal, triggers the starting resource block acquisition module.
Further, device of the present invention also includes：
Detection module is activated, for judging with the RBstartIt is big that the shared resource of SPS activation is carried out for starting resource block
It is small whether in the range of presetting, if so, then triggering the scheduler module；Otherwise, second judge module is triggered.
Wherein, the scope set in advance includes：Resource shared by activation SPS is no more than the available money of present sub-frame
The half of source range.
Further, in device of the present invention, the starting resource block acquisition module specifically includes：
Acquisition of information submodule, for the System Frame Number according to corresponding to present sub-frame and subframe numbers, obtain present sub-frame pair
The time point answered；
Starting resource block acquisition submodule, for the time point according to corresponding to the present sub-frame, judge that present sub-frame is
No is subframe of certain subframe after t time intervals, if so, the starting that the starting resource block then chosen is chosen with certain described subframe
Resource block is respectively the resource block at the available scope of resource both ends；Otherwise, low frequency in the available scope of resource is chosen
The resource block RB of domain one endlow_availableOr the resource block RB that frequency domain is high-endhigh_availableFor starting resource block.
Further, in device of the present invention, the resource status update module, by the way of bit map,
In the available scope of resource of present sub-frame will the activation scheduled resource blocks used of SPS labeled as unavailable, realize to current
The renewal of subframe available resources.
The present invention has the beneficial effect that：
The SPS resource distribution modes that the method for the invention and device provide, by the way that the resource of SPS new biographies and SPS is non-
The resource distribution of adaptive retransmission is at the both ends of available resources, so as to avoid the up SPS resource contentions of more UE caused by Gap
Problem, improve the transmission performance of up SPS business.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the SPS resource contentions as caused by measurement Gap in the prior art；
Fig. 2 is the another schematic diagram of the SPS resource contentions as caused by measurement Gap in the prior art；
Fig. 3 is a kind of flow chart of uplink semi-persistent scheduling of resource distribution method provided by the invention；
Fig. 4 is a kind of flow chart of uplink semi-persistent scheduling of resource distribution method provided in an embodiment of the present invention；
Fig. 5 be the method for the invention for Gap be present when more UE SPS resource conflict problems solution diagram；
Fig. 6 is a kind of structure chart of uplink semi-persistent scheduling of resource distributor provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The present invention provides a kind of uplink semi-persistent scheduling method and apparatus, to solve due to measurement interval Gap presence,
So that up SPS resources have the technical problem of conflict between different UE, improve up SPS business and demodulate successful probability.
As shown in figure 3, the present invention provides a kind of uplink semi-persistent scheduling of resource distribution method, specifically include：
Step S301, the available scope of resource of present sub-frame is obtained, judges that present sub-frame is quiet with the presence or absence of activation half is needed
State dispatches SPS user, if so, performing step S302；
Step S302, with subframe n and subframe n+t SPS resources respectively since the both ends of the available scope of resource
Principle is assigned as, determines that present sub-frame activates the starting resource block RB of resource needed for the SPS of the userstart；The t is SPS
The time interval that new biography and SPS non-self-adaptings retransmit；
The step is specially：
(1) System Frame Number and subframe numbers according to corresponding to present sub-frame, obtain time point corresponding to present sub-frame；
(2) time point according to corresponding to the present sub-frame, judge whether present sub-frame is that certain subframe passes through t time intervals
Subframe afterwards, if so, the starting resource block then chosen is respectively described available with the starting resource block that certain described subframe is chosen
The resource block at scope of resource both ends is (for example, it is assumed that the starting resource block that certain subframe is chosen is lower frequency region in available scope of resource
The resource block RB of one endlow_available, then the starting resource block that present sub-frame is chosen is available scope of resource medium-high frequency domain one
The resource block RB at endhigh_available；Vice versa)；Otherwise, the resource of lower frequency region one end in the available scope of resource is chosen
Block RBlow_availableOr the resource block RB that frequency domain is high-endhigh_availableFor starting resource block.
Preferably, in step S302, it is determined that present sub-frame activates the starting resource of resource needed for the SPS of the user
Block RBstartAfterwards, in addition to：
Judge with the RBstartCarry out whether the shared resource size of SPS activation is presetting for starting resource block
In the range of, if so, performing step S303；Otherwise, step S304 is performed.
Wherein, the resource set in advance ranged preferably from shared by activation SPS is no more than the available resource of present sub-frame
The half of scope.
Step S303, based on the starting resource block RBstart, dispatching uplink mandate activation SPS, and present sub-frame can use
Scope of resource be updated；
In the step, by the way of bit map, activation SPS has been adjusted in the available scope of resource of present sub-frame
The resource block that uses is spent labeled as unavailable, realizes the renewal to present sub-frame available resources.
Step S304, judge present sub-frame activation SPS in need user whether scheduling complete, if it is not, being then based on
The available resources scope of the present sub-frame of renewal, perform step S302；If so, flow terminates.
A preferred embodiment of the invention is provided below according to Fig. 4~Fig. 5, and combines the description to embodiment, enters one
Step provides the ins and outs of the present invention.
As shown in figure 4, a kind of uplink semi-persistent scheduling resource allocation methods provided in an embodiment of the present invention, including following step
Suddenly：
Step S401, according to the resource behaviour in service of present sub-frame, the available resources scope of present sub-frame is determined；
In the present embodiment, the available resources scope is made to be：RBlow_available~RBhigh_available；Wherein, RBlow_available
For first available RB, RB of frequency domain low sidehigh_availableFor first high-end available RB of frequency domain.
In the present embodiment, RBlow_availableAnd RBhigh_availableAcquisition except consider ascending physical signal control channel
(Physical uplink control channel, PUCCH) etc. is using outside RB resources, it is also desirable to considers inter-cell interference
The RB for coordinating technical stipulations such as (Inter Cell Interference Coordination, ICIC) uses rule.
Step S402, judge that present sub-frame whether there is the UE for needing to activate SPS, if having；Then perform step S403；It is no
Then, flow terminates；
Step S403, according to corresponding to present sub-frame, time point determines the starting resource block of this SPS resource allocation
RBstart；That is, it is determined that being from frequency domain low side RBlow_availableOr the high-end RB of frequency domainhigh_availableProceed by SPS resources point
Match somebody with somebody.
In the present embodiment, starting resource block RB is determinedstartBasic principle be ensure subframe n and subframe n+t SPS resources
Distributed respectively since the both ends of frequency domain；Wherein, t is the time interval that SPS new biographies and SPS non-self-adaptings retransmit；The t is usual
Take 8ms；In order to facilitate description, follow-up process illustrates so that t takes 8ms as an example.
During concrete application, it can determine in the following way：System Frame Number (the System according to corresponding to present sub-frame
Frame Number, SFN) and subframe numbers (subframe) to obtain time point corresponding to present sub-frame be (10*SFN+
Subframe), judge whether time point corresponding to present sub-frame meets { floor [(10*SFN+subframe)/8] } mod2=
0, if so, choosing RBstartEqual to RBlow_available；Otherwise, RB is chosenstartEqual to RBhigh_available。
Step S404, the SPS resource requirements whether Current resource situation meets UE to be activated are judged, if so, then performing step
Rapid S405, otherwise, perform step S406；
Wherein, meeting the most basic principle of SPS resource requirements is：With RBstartWhen dividing resource for starting resource block, activation
Resource block number needed for SPS is no more than currently available scope of resource.However, at the time of corresponding to present sub-frame, Ke Nengtong
When new biography and non-adaptive re-transmission be present, then in order to avoid new biography and non-self-adapting retransmit (the method according to the invention, now
New biography and non-adaptive re-transmission should be since the both ends of available resources scope distribution resource) used in resource block superposition,
The SPS resource requirements for meeting UE to be activated are preferably defined as by the present invention：Activate whether the resource needed for SPS is no more than currently
The half of the available resources of subframe, if not exceeded, being then judged to meeting to require；Otherwise, it is determined that to be unsatisfactory for.
Step S405, according to the RB of determinationstartDispatching uplink mandate activates SPS, and the resource for updating present sub-frame uses
State；
In the step, resource status can safeguard each RB of full bandwidth service condition by way of bit map, and such as 1 represents
The RB has been used, and 0 represents that the RB is not yet used, and RB corresponding bits position will have been distributed after finishing scheduling as 1.
Step S406, judge whether that all SPS to be activated of present sub-frame UE has been dispatched, if so, then flow terminates, it is no
Then, based on the resource using status after renewal, step S403 is performed.
In summary, methods described of the embodiment of the present invention, the SPS resource conflict problems of more UE caused by Gap be can solve the problem that.
As shown in figure 5, when UE1 causes it in the corresponding subframe progress non-self-adapting re-transmissions of n+8 in subframe n SPS new biographies and its Gap conflict
When, other UE of the SPS resources subframe corresponding with n+8 of its non-self-adapting re-transmission SPS new biography resources are just distributed in available resources
Both ends, the phenomenon for conflicting with other UE SPS new biographies and causing SPS demodulation to fail is transmitted from the SPS without UE1, is entered
And improve the transmission success probability of SPS business.
As shown in fig. 6, the present invention also provides a kind of uplink semi-persistent scheduling resource allocation device, including：
Resource status acquisition module 610, for obtaining the available scope of resource of present sub-frame；
First judge module 620, for judging that present sub-frame whether there is the user for needing to activate SPS, if in the presence of touching
Initiate beginning resource block acquisition module；
Starting resource block acquisition module 630, for subframe n and subframe n+t SPS resources respectively from the available money
The both ends of source range start to be assigned as principle, determine that present sub-frame activates the starting resource block of resource needed for the SPS of the user
RBstart；The t is the time interval that SPS new biographies and SPS non-self-adaptings retransmit；
Scheduler module 640, for based on the starting resource block RBstart, dispatching uplink mandate activation SPS；
Resource status update module 650, it is available to present sub-frame after the completion of being dispatched in the scheduler module 640
Scope of resource is updated；
Second judge module 660, for judge present sub-frame activation SPS in need user whether scheduling complete,
If it is not, the then available resources scope of the present sub-frame based on renewal, triggers the starting resource block acquisition module 630.
Further, described device also includes：
Detection module 670 is activated, for judging with the RBstartThe shared money of SPS activation is carried out for starting resource block
Whether source size is in the range of presetting, if so, triggering the scheduler module 640；Otherwise, triggering described second judges mould
Block 660.
Wherein, the scope set in advance includes：Resource shared by activation SPS is no more than the available money of present sub-frame
The half of source range.
Further, the starting resource block acquisition module 630 specifically includes：
Acquisition of information submodule 631, for the System Frame Number according to corresponding to present sub-frame and subframe numbers, obtain present sub-frame
Corresponding time point；
Starting resource block acquisition submodule 632, for the time point according to corresponding to the present sub-frame, judge present sub-frame
Whether it is subframe of certain subframe after t time intervals, if so, the starting resource block then chosen rises with what certain described subframe was chosen
Beginning resource block is respectively the resource block at the available scope of resource both ends；Otherwise, choose low in the available scope of resource
The resource block RB of frequency domain one endlow_availableOr the resource block RB that frequency domain is high-endhigh_availableFor starting resource block.
Further, the resource status update module 650, it is available in present sub-frame by the way of bit map
In scope of resource will the activation scheduled resource blocks used of SPS labeled as unavailable, realize to present sub-frame available resources
Renewal.
The ins and outs of device of the present invention are illustrated below by a specific embodiment, with continued reference to Fig. 6, sheet
Inventive embodiments described device includes：
Resource status acquisition module, for obtaining the resource behaviour in service of present sub-frame, determine present sub-frame frequency domain low side
First available RB (RBlow_available) and the high-end first available RB (RB of frequency domainhigh_available)；
First judge module, for judging whether present sub-frame has UE to need to carry out SPS activation, if so, triggering starting money
Source block acquisition module；
Starting resource block acquisition module, for the RB determined according to resource status acquisition modulelow_availableWith
RBhigh_availableValue, this SPS is judged based on System Frame Number corresponding to present sub-frame (SFN) and subframe numbers (subframe)
Resource is from RBlow_availableOr RBhigh_availableDistribution is proceeded by, that is, determines the RB of SPS distribution resourcesstart；
Wherein it is determined that the basic principle of the starting resource block of SPS distribution resources is：Subframe n and subframe n+t SPS resources
Distributed respectively since the both ends of the available scope of resource；
During concrete application, then have：System Frame Number and subframe numbers, are obtained corresponding to present sub-frame according to corresponding to present sub-frame
Time point；
According to time point corresponding to the present sub-frame, judge whether present sub-frame is certain subframe after t time intervals
Subframe, if so, the starting resource block that the starting resource block then chosen and certain described subframe are chosen is respectively the available money
The resource block at source range both ends is (for example, it is assumed that the starting resource block that certain subframe is chosen is lower frequency region one in available scope of resource
The resource block RB at endlow_available, then the starting resource block that present sub-frame is chosen is available scope of resource medium-high frequency domain one end
Resource block RBhigh_available；Vice versa)；Otherwise, the resource block of lower frequency region one end in the available scope of resource is chosen
RBlow_availableOr the resource block RB that frequency domain is high-endhigh_availableFor starting resource block.
Detection module is activated, for judging with the RBstartIt is big that the shared resource of SPS activation is carried out for starting resource block
It is small whether in the range of presetting, if so, triggering the scheduler module；Otherwise；Trigger second judge module.
Wherein, the scope set in advance is preferably：Resource shared by activation SPS can use no more than present sub-frame
Scope of resource half.
Scheduler module, for according to the RBstartSPS resources are distributed for SPS to be activated UE, issue uplink authorization activation
SPS；And the scheduling of announcing resource state update module uses RB positions and RB numbers.
Resource status update module, for after finishing scheduling according to scheduling activation SPS used in RB positions and RB numbers
Resource status is updated, in order to be carried out when all SPS periodic points activate other UE SPS corresponding to this subframe and this subframe
Corresponding operating.Wherein, resource status can safeguard each RB of full bandwidth service condition by way of bit map, and such as 1 represents to be somebody's turn to do
RB has been used, and 0 represents that the RB is not yet used, and RB corresponding bits position will have been distributed after finishing scheduling as 1.
Second judge module, finished for judging that present sub-frame needs the UE for activating SPS whether to dispatch, if so, terminating；It is no
Then, the resource status of the present sub-frame based on renewal, the starting resource block acquisition module is triggered.
Simply, resource status acquisition module is responsible for judge module offer currently in described device of the embodiment of the present invention
The resource service condition of subframe, mainly including RBlow_availableAnd RBhigh_availableValue；Starting resource block acquisition module
The resource behaviour in service provided according to resource status acquisition module determines the starting RB (RB of SPS resource allocationsstart)；Activation detection
Module needs RB number to determine whether that SPS is activated according to SPS activation, when allowing SPS to activate by identified RBstartPass
Give scheduler module；The starting RB that scheduler module provides according to starting resource block acquisition module completes scheduling, and in finishing scheduling
Announcing resource state update module scheduling afterwards uses RB positions and RB numbers, so that resource status update module updates this subframe
Resource behaviour in service.By above-mentioned technological means, device of the present invention is by by the resource of SPS new biographies and SPS non-self-adaptings
The resource distribution of re-transmission is at the both ends of available resources, so as to avoid the up SPS resource conflict problems of more UE caused by Gap,
Improve the transmission performance of up SPS business.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
- A kind of 1. uplink semi-persistent scheduling resource allocation methods, it is characterised in that including：Step 1, the available scope of resource of present sub-frame is obtained, and need to activate semi-persistent scheduling judging that present sub-frame is present During SPS user, step 2 is performed；Step 2, original is assigned as since the both ends of the available scope of resource with subframe n and subframe n+t SPS resources respectively Then, determine that present sub-frame activates the starting resource block RB of resource needed for the SPS of the userstart；The t is SPS new biographies and SPS The time interval that non-self-adapting retransmits；Step 3, based on the starting resource block RBstart, dispatching uplink mandate activation SPS, and to the available resource of present sub-frame Scope is updated；Step 4, judge present sub-frame activation SPS in need user whether scheduling complete, if so, flow terminates；Otherwise, The available resources scope of present sub-frame based on renewal, perform step 2.
- 2. the method as described in claim 1, it is characterised in that described to determine that present sub-frame is activated needed for the SPS of the user The starting resource block RB of resourcestartAfterwards, in addition to：Judge with the RBstartWhether the shared resource size of SPS activation is carried out in model set in advance for starting resource block In enclosing, if so, then performing step 3；Otherwise, step 4 is performed.
- 3. method as claimed in claim 2, the scope set in advance includes：Resource shared by activation SPS is no more than The half of the available scope of resource of present sub-frame.
- 4. the method as described in claim 1 or 2 or 3, it is characterised in that the step 2 specifically includes：System Frame Number and subframe numbers according to corresponding to present sub-frame, obtain time point corresponding to present sub-frame；According to time point corresponding to the present sub-frame, judge whether present sub-frame is son of certain subframe after t time intervals Frame, if so, the starting resource block that the starting resource block then chosen is chosen with certain described subframe is respectively the available resource model Enclose the resource block at both ends；Otherwise, the resource block RB of lower frequency region one end in the available scope of resource is chosenlow_availableOr frequency The high-end resource block RB in domainhigh_availableFor starting resource block.
- 5. the method as described in claim 1 or 2 or 3, it is characterised in that in the step 3, by the way of bit map, In the available scope of resource of present sub-frame will the activation scheduled resource blocks used of SPS labeled as unavailable, realize to working as The renewal of preceding subframe available resources.
- A kind of 6. uplink semi-persistent scheduling resource allocation device, it is characterised in that including：Resource status acquisition module, for obtaining the available scope of resource of present sub-frame；First judge module, for when judging that present sub-frame has the user for needing activation SPS, triggering starting resource block to obtain Modulus block；Starting resource block acquisition module, for subframe n and subframe n+t SPS resources respectively from the available scope of resource Both ends start to be assigned as principle, determine that present sub-frame activates the starting resource block RB of resource needed for the SPS of the userstart； The t is the time interval that SPS new biographies and SPS non-self-adaptings retransmit；Scheduler module, for based on the starting resource block RBstart, dispatching uplink mandate activation SPS；Resource status update module, for after the completion of scheduler module scheduling, entering to the available scope of resource of present sub-frame Row renewal；Second judge module, for judge present sub-frame activation SPS in need user whether scheduling complete, if so, knot Beam operates；Otherwise, the available resources scope of the present sub-frame based on renewal, the starting resource block acquisition module is triggered.
- 7. device as claimed in claim 6, it is characterised in that described device also includes：Detection module is activated, for judging with the RBstartCarrying out the shared resource size of SPS activation for starting resource block is It is no in the range of presetting, if so, then triggering the scheduler module；Otherwise, second judge module is triggered.
- 8. device as claimed in claim 7, it is characterised in that the scope set in advance includes：Activate shared by SPS Resource is no more than the half of the available scope of resource of present sub-frame.
- 9. the device as described in claim 6 or 7 or 8, it is characterised in that the starting resource block acquisition module specifically includes：Acquisition of information submodule, for the System Frame Number according to corresponding to present sub-frame and subframe numbers, obtain corresponding to present sub-frame Time point；Starting resource block acquisition submodule, for the time point according to corresponding to the present sub-frame, judge present sub-frame whether be Subframe of certain subframe after t time intervals, if so, the starting resource that the starting resource block then chosen is chosen with certain described subframe Block is respectively the resource block at the available scope of resource both ends；Otherwise, lower frequency region one in the available scope of resource is chosen The resource block RB at endlow_availableOr the resource block RB that frequency domain is high-endhigh_availableFor starting resource block.
- 10. the device as described in claim 6 or 7 or 8, it is characterised in thatThe resource status update module, will activation in the available scope of resource of present sub-frame by the way of bit map The scheduled resource blocks used of SPS realize the renewal to present sub-frame available resources labeled as unavailable.
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| CN201110217794.3A CN102917455B (en) | 2011-08-01 | 2011-08-01 | A kind of uplink semi-persistent scheduling resource allocation methods and device |
| PCT/CN2012/071632 WO2012155589A1 (en) | 2011-08-01 | 2012-02-24 | Method and apparatus for allocating uplink semi-persistent scheduling resource |
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| WO2014186958A1 (en) * | 2013-05-22 | 2014-11-27 | 华为技术有限公司 | Uplink information transmission method and device after measuring gap |
| CN104469807B (en) * | 2013-09-23 | 2017-11-24 | 成都鼎桥通信技术有限公司 | The method of allocating and measuring gap and base station |
| CN104853441B (en) * | 2014-02-17 | 2018-04-13 | 普天信息技术有限公司 | A kind of semi-persistent scheduling reallocating method and system |
| WO2015165536A1 (en) * | 2014-04-30 | 2015-11-05 | Telecom Italia S.P.A. | Method and system for allocating radio resources for uplink transmission in cellular networks |
| CN105592557A (en) * | 2014-11-17 | 2016-05-18 | 中兴通讯股份有限公司 | SPS control method, apparatus and base station |
| CN107852622B (en) * | 2015-08-14 | 2020-04-14 | 华为技术有限公司 | Gap selection method and device |
| CN107509246B (en) * | 2016-06-14 | 2020-06-23 | 成都鼎桥通信技术有限公司 | Semi-static scheduling method and base station |
| CN107567056B (en) * | 2016-06-30 | 2022-07-12 | 中兴通讯股份有限公司 | Method and device for allocating resources |
| CN107567104B (en) * | 2016-06-30 | 2022-11-04 | 中兴通讯股份有限公司 | Semi-static scheduling method and base station |
| CN108156629A (en) | 2016-12-02 | 2018-06-12 | 索尼公司 | Equipment and wireless communications method in wireless communication system |
| CN108401301B (en) * | 2017-02-04 | 2022-01-14 | 华为技术有限公司 | Semi-static scheduling method, network equipment and terminal equipment |
| WO2018161337A1 (en) * | 2017-03-10 | 2018-09-13 | Qualcomm Incorporated | Techniques and apparatuses for scheduling request (sr) suppression during multimedia communication |
| CN110572879B (en) * | 2019-10-29 | 2023-06-20 | 展讯通信（上海）有限公司 | Resource control method, device and storage medium |
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