CN101222775B - Method and base station for remaining ascending synchronization - Google Patents
Method and base station for remaining ascending synchronization Download PDFInfo
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Abstract
The invention provides a method for keeping up-link synchronization and a base station to carry out the method, wherein the method comprises the following steps that: the base station starts a preset calibration timer to time when receiving scheduling resource information special for a user terminal (UE) or a notice on relieving non-scheduling resource notice; if the timing of the calibration timer reaches a preset time threshold, but the station neither receive the up-link data or command sent by the UE nor transmit an authorization message to the UE, then the base station allocates the scheduling resource for the UE and transmits a synchronization shift command to the UE via the down-link scheduling resource accessed through high speed down-link packet access(HSDPA) or high speed up-link packet access (HSUPA. The invention prevents that the base station cannot allocate scheduling resources to the UE and cannot transmit SS command to the UE for a long time after receiving the scheduling resource information of the UE or a notice on relieving non-scheduling resource and causes the UE to be out of step, ensuring the stability of up-link synchronization.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly a kind of method and base station that keeps uplink synchronous.
Background technology
TD SDMA (TD-SCDMA) system is a system that strict demand is synchronous, because down link is always synchronous, therefore, how to keep the synchronous of up link, and promptly uplink synchronous is a research emphasis of improving systematic function.Especially be in the user terminal (UE) of sub-district-dedicated channel (CELL-DCH) state, the time that self sends upstream data is adjusted in simultaneous bias (SS) order that needs to receive base station (NodeB) transmission, thereby maintenance uplink synchronous, require the UE will be continuously or periodically send upstream data or up signaling simultaneously, so that the SS that NodeB can send to this UE according to upstream data or the up signaling real-time update of this UE order.Wherein, the SS order is carried NodeB and is carried out with the calibration information behind the step calibration for this UE, this calibration information can be to be the shift time amount between the time of this UE scheduled resources time corresponding and current transmission upstream data of UE or signaling employing, therefore, UE can adjust the time that self sends upstream data or signaling according to the shift time amount in this SS order, thereby keeps uplink synchronous.Usually, UE is sent the launch time that time that upstream data or signaling adopt is called UE.
In the TD-SCDMA system, after UE finishes initial access and sets up uplink synchronous, be in the CELL-DCH state, radio network controller (RNC) can be UE configuration non-scheduling resource or scheduling resource according to the state of affairs of UE, if for UE has disposed scheduling resource, then send scheduling resource information or discharge the non-scheduling resource notice to NodeB, NodeB carries out the data transmission procedure that high speed downlink packet inserts (HSDPA) or high speed uplink packet access (HSUPA) after receiving this scheduling resource information or discharging the non-scheduling resource notice.At the UE that is in the CELL-DCH state, the scheduling resource that can be utilized as the UE configuration in the prior art keeps uplink synchronous, for example, can keep uplink synchronous by the transfer of data of HSPDA or the scheduled transmission of HSPUA.To prior art these two kinds keep the mode of uplink synchronous to carry out simple declaration below.
Fig. 1 is the method flow diagram that keeps uplink synchronous in the prior art by the transfer of data of HSDPA, and as shown in Figure 1, the transfer of data of HSPDA mainly comprises: NodeB sends the physical layer control information by descending High-Speed Shared Control Channel (HS-SCCH) to UE; NodeB transmitting downlink data on HS-PDSCH is given UE; After UE receives downlink data on the high speed downlink packet access technology (HS-PDSCH), go up at high-speed shared information channel (HS-SICH) and to return success response (ACK) or failure response (NACK) to NodeB.In the prior art, NodeB can carry the SS order by descending HS-SCCH and be used for UE maintenance uplink synchronous, simultaneously, ACK that NodeB can return on HS-SICH according to UE or NACK are to carrying out same step calibration the launch time of UE, and real-time update sends to the SS order of this UE.
Fig. 2 is the method flow diagram that keeps uplink synchronous in the prior art by the transfer of data of HSUPA, as shown in Figure 2, the transfer of data of HSPUA mainly comprises: when UE has data to send but do not obtain the authorization information as yet, go up transmission dispatch request (SI) at enhanced uplink random access channel (E-RUCCH) and give NodeB, E-RUCCH is mapped on the PRACH and inserts at random, thereby has set up uplink synchronous for UE; After NodeB receives the SI of this UE, be this UE allocation schedule resource, and go up the transmission authorization message to UE, be included as the scheduling resource information that this UE distributes in this authorization message in E-DCH absolute grant channel (E-AGCH); UE goes up the transmission upstream data at the corresponding uplink physical channel (E-PUCH) that strengthens after receiving authorization message on the E-AGCH; NodeB is confirming indicating channel (E-HICH) upward answer ACK or NACK.In the prior art, NodeB can carry SS order and be used for UE and keep uplink synchronous on E-AGCH, and simultaneously, the upstream data that NodeB can send on E-PUCH according to UE is to carrying out same step calibration the launch time of UE, and real-time update sends to the SS order of this UE.
Though above-mentioned dual mode can keep the uplink synchronous of UE,, can't guarantee that NodeB is the satisfied time requirement that keeps uplink synchronous of time of UE scheduling resource.If NodeB can not be UE allocation schedule resource for a long time in the scheduling resource information that receives RNC or after discharging the non-scheduling resource notice, also just can't send the SS order to UE.UE is under the situation that does not receive the SS order, can't in time adjust the launch time of self in uplink synchronous in the retention time, can send upstream data or signaling according to the transmitting time that UE obtains when inserting, this just can cause the step-out of UE, the time that promptly sends upstream data or signaling is offset with the resource time corresponding of calling for this UE, and NodeB possibly can't correctly resolve upstream data or the signaling that receives.
Summary of the invention
The invention provides a kind of method and base station that keeps uplink synchronous,, guarantee the stability of uplink synchronous so that avoid the step-out of UE.
A kind of method that keeps uplink synchronous, this method comprises:
A. base station node B receives at the scheduling resource information of user terminal UE or when discharging the non-scheduling resource notice, starts default calibration timer and carry out timing;
If B. the timing duration of this calibration timer reaches default time threshold, described NodeB does not receive upstream data or the signaling that described UE sends as yet, and do not send authorization message to described UE, then described NodeB is this UE allocation schedule resource, and sends simultaneous bias SS order by the descending scheduling resource of high-speed downlink packet access HSDPA or high speed uplink packet access HSUPA to this UE;
Wherein, described NodeB comprises for the scheduling resource that this UE distributes: the priority of resource allocation that described NodeB is provided with described UE is a limit priority, and distributes minimal code channel resource and the MIN power resource of presetting for this UE.
In addition, between described steps A and step B, also comprise:
Step C: if the timing duration of described calibration timer is in described time threshold, described NodeB receives upstream data or the signaling that described UE sends, and then restarts described calibration timer and carries out timing, and re-execute described step C, otherwise, continue execution in step B.
Describedly between described steps A and step B, also comprise:
Step D: if the timing duration of described calibration timer is in described time threshold, described NodeB sends authorization message to described UE, then stop the timing of described calibration timer, and when the resource continuous time that is described UE distribution finishes, restart described calibration timer and carry out timing, and re-execute described step D, otherwise, execution in step B continued; Wherein, the resource continuous temporal information of distributing for described UE is carried in the described authorization message.
Upstream data or signaling that described UE sends comprise: success response ACK that described UE sends on high-speed shared information channel HS-SICH or failure response NACK, perhaps, the dispatch request that described UE sends on enhanced uplink random access channel E-RUCCH.
Described NodeB receives the dispatch request that described UE sends in described time threshold, and this dispatch request indication is when having uplink business data to send, and the scheduling timer that starts at this UE carries out timing, and according to the timing duration t of described scheduling timer
WaitUE is carried out the setting of scheduling of resource priority, when the timing duration of described calibration timer reaches default time threshold,, and stop the timing of described scheduling timer the timing zero clearing of described scheduling timer.
Timing duration t according to described scheduling timer
WaitUE is carried out the setting of scheduling of resource priority to be comprised:
To t
Wait〉=f
AsyThe UE of * TA carries out the setting of scheduling of resource priority, t
WaitBig more, scheduling of resource priority is high more; Wherein, 0≤f
Asy≤ 1, and f
AsyValue pre-determine according to throughput of system or experiment simulation result, TA is the time threshold of described calibration timer.
Described default time threshold is less than or equal to the uplink synchronous retention time of system.
The descending scheduling resource of described HSDPA comprises high-speed shared control channel HS-SCCH; The descending scheduling resource of described HSUPA comprises: absolute grant channel E-AGCH.
Also comprised before described steps A: described NodeB judges whether RNC is that described UE has distributed non-scheduling resource, if not, then continues to carry out described steps A; If then adopt the non-scheduled transmission of HSUPA to keep the uplink synchronous of described UE, and close described calibration timer.
The non-scheduled transmission of described employing HSUPA keeps uplink synchronous to comprise:
Described UE sends upstream data to described NodeB on for the non-scheduling resource enhancing uplink physical channel E-PUCH that self distributes; Described NodeB carries out with step calibration and generates SS ordering to described UE according to send upstream data on E-PUCH, is confirming on the indicating channel E-HICH this SS order to be sent to described UE; Described UE adjusts the launch time of self according to described SS order.
A kind of base station, this base station comprises: receiving element, calibration timer, transmitting element, allocation units and order generation unit;
Described receiving element when being used to receive the scheduling resource information that sends at UE or discharging the non-scheduling resource notice, sends initiate notification to described calibration timer, receives upstream data or signaling that UE sends;
Described calibration timer when being used to receive described initiate notification, picks up counting;
Described transmitting element is used for sending authorization message to described UE, and sends the SS order that described order generation unit generates by the descending scheduling resource of HSDPA or HSUPA to described UE;
Described allocation units, be used for reaching default time threshold at the timing duration of described calibration timer, described receiving element does not receive up-downgoing data or the signaling that described UE sends as yet, and described transmitting element is described UE allocation schedule resource not when described UE sends authorization message; Wherein, the scheduling resource that distributes for described UE comprises: the priority of resource allocation that described UE is set is a limit priority, and is that described UE distributes default minimal code channel resource and MIN power resource;
Described order generation unit, being used for according to described allocation units is that the scheduling resource that described UE distributes generates the SS order.
This base station also comprises: first restarts trigger element, and the timing length that is used for described calibration timer when described receiving element receives upstream data that described UE sends or signaling, sends to described calibration timer and to restart notice in described time threshold;
Described calibration timer, also be used to receive restart notice after, restart and pick up counting.
This base station also comprises: second restarts trigger element, the timing length that is used for described calibration timer is in described time threshold, described transmitting element sends authorization message to described UE, then send expiry notification to described calibration timer, when the resource continuous time that is described UE distribution finishes, restart notice to described calibration timer transmission;
Described calibration timer stops timing after also being used to receive expiry notification, receive restart notice after, restart beginning regularly.
This base station also comprises: start trigger element, scheduling timer and priority the unit is set;
Described startup trigger element, the timing duration that is used for described calibration timer is in described time threshold, described receiving element receives the dispatch request that described UE sends, and when this dispatch request indication has uplink business data to send, send initiate notification to the scheduling timer, when the timing time of described calibration timer reaches described time threshold, send the zero clearing notice to described scheduling timer
Described scheduling timer, after being used to receive initiate notification, startup picks up counting, receive zero clearing notice after, with the timing zero clearing and stop timing;
Described priority is provided with the unit, is used for the timing duration t according to described scheduling timer
WaitUE is carried out the setting of scheduling of resource priority;
Described allocation units also are used for according to described priority the scheduling of resource priority that the unit is provided with being set, to described UE allocation schedule resource.
This base station also comprises: judging unit and non-scheduling service unit;
Described receiving element also is used to receive the non-scheduling resource information at described UE;
Described judging unit is used to judge whether described receiving element receives the non-scheduling resource information at described UE, if then send synchronization notice to the non-scheduling service unit, and close notice to described calibration timer transmission;
Described non-scheduling service unit, after being used to receive synchronization notice, the non-scheduled transmission of employing HSUPA keeps the uplink synchronous of described UE;
Described calibration timer, also be used to receive close notice after, stop timing.
As can be seen from the above technical solutions, in method provided by the invention and base station, by being set, the calibration timer controls the time that NodeB is a UE allocation schedule resource, receive upstream data or the signaling that UE sends if surpassed the time threshold of setting, and do not send authorization message to this UE, show that NodeB is not this UE allocation schedule resource as yet, at this moment, NodeB is this UE allocation schedule resource immediately, prevent that NodeB is in the scheduling resource information that receives UE or after discharging the non-scheduling resource notice, can not and can't send SS order for UE allocation schedule resource for a long time, and the step-out of the UE that causes, thereby guarantee the stability of uplink synchronous to UE.
Description of drawings
Fig. 1 is the method flow diagram that keeps uplink synchronous in the prior art by the transfer of data of HSDPA;
Fig. 2 is the method flow diagram that keeps uplink synchronous in the prior art by the transfer of data of HSUPA;
The method flow diagram that Fig. 3 provides for the embodiment of the invention;
The non-scheduled transmission of employing that Fig. 4 provides for the embodiment of the invention keeps the flow chart of uplink synchronous;
The NodeB structure chart that Fig. 5 provides for the embodiment of the invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, invention is described in detail below in conjunction with the drawings and specific embodiments.
Method provided by the invention mainly comprises: when NodeB receives at the scheduling resource information of UE or release non-scheduling resource notice, start default calibration timer and carry out timing; If the timing duration of this calibration timer reaches default time threshold, this NodeB does not receive upstream data or the signaling that this UE sends as yet, and do not send authorization message to this UE, then NodeB is this UE allocation schedule resource, and sends the SS order by the descending scheduling resource of HSDPA or HSUPA to this UE.
Wherein, the descending scheduling resource of HSDPA can be HS-SCCH, and the descending scheduling resource of HSUPA can be E-AGCH.
Default time threshold can be less than or equal to the uplink synchronous retention time of system.
In the method, if the timing duration of this calibration timer does not reach default time threshold as yet, NodeB receives upstream data or the signaling that this UE sends, and then restarts default calibration timer and carries out timing; If the timing duration of this calibration timer does not reach default time threshold as yet, NodeB sends authorization message to this UE, then stop the timing of this calibration timer, and when the resource continuous time of distributing for this UE finishes, restart default calibration timer and carry out timing, wherein, the resource continuous temporal information of distributing for this UE is carried in the authorization message.
In addition, before this method, RNC is UE configuration schedules resource or non-scheduling resource according to the service condition of UE, if for UE has disposed scheduling resource, then can send this scheduling resource information or discharge the non-scheduling resource notice to NodeB, carries out said method this moment; If for UE has disposed non-scheduling resource, then this RNC can send non-scheduling resource information to NodeB, at this moment, after NodeB receives non-scheduling resource information, can adopt the non-scheduled transmission of HSUPA to keep uplink synchronous.
Understand for convenience, this method is described below in conjunction with specific embodiment.The method flow diagram that Fig. 3 provides for the embodiment of the invention, as shown in Figure 3, this method can may further comprise the steps:
Step 301:NodeB judges whether that to UE has disposed non-scheduling resource if then execution in step 307, if not, then execution in step 302.
In this step,, then be defined as UE and disposed non-scheduling resource if NodeB receives the non-scheduling resource information at this UE that RNC sends; If receive that RNC sends at the scheduling resource information of this UE but do not receive non-scheduling resource information, the notice at the release non-scheduling resource of this UE that receives perhaps that RNC sends then determines to be UE distribution non-scheduling resource.
When step 302:NodeB receives at the scheduling resource information of UE or release non-scheduling resource notice, start default calibration timer and carry out timing.
In this step, can increase new functional entity, promptly calibrate timer for NodeB.If when NodeB receives at the scheduling resource information of this UE or release non-scheduling resource notice, should calibrate timer and be set to enable (Enable) state, and start the calibration timer and carry out timing.
Whether step 303:NodeB receives upstream data or the signaling that UE sends in the time threshold of calibration timer, perhaps send authorization message to UE.If not, execution in step 304 then; If, judge that then whether what receive is upstream data or the signaling that UE sends in time threshold, if what receive is upstream data or the signaling that UE sends, then execution in step 305, otherwise, execution in step 306.
Calibration Preset Time thresholding regularly can specifically be provided with according to the requirement of uplink synchronous retention time, the uplink synchronous retention time that this time threshold is less than or equal to system is set, thereby avoid NodeB after the scheduling resource information or release non-scheduling resource notice that receive at this UE, can not be UE allocation schedule resource for a long time.
The timing of this calibration timer can be adopted the mode of counting, and the timing of the accurate timer of each TTI high-ranking officers adds 1.Can add 1, the judgement in carry out this step when promptly each TTI finishes at every turn.
In this step, it can be UE in the ACK that sends on the HS-SICH or NACK or the dispatch request that sends on E-RUCCH or E-PUCH etc. that NodeB receives upstream data that UE sends or signaling.
Step 304: the calibration timer reaches when presetting thresholding, and NodeB is this UE allocation schedule resource immediately, and this UE is carried out same step calibration, and sends the SS order by HS-SCCH or E-AGCH to this UE.When treating that NodeB receives upstream data that UE sends or signaling, execution in step 305.
In this step, if reaching default thresholding, the calibration timer do not receive upstream data or the signaling that this UE sends yet, do not send authorization message to this UE yet, show that NodeB is not this UE allocation schedule resource as yet, in order to keep the uplink synchronous stability of UE, NodeB is this UE allocation schedule resource immediately.Can adopt this UE to be set to the mode of the limit priority of resource allocation, make NodeB can be this UE allocation schedule resource immediately.
In addition, normally channel circumstance is abominable or do not have business datum to be passed for the reason of this UE allocation schedule resource owing to not have for a long time, and therefore, NodeB can be minimal code channel resource and the MIN power resource that this UE distribution is preset.The scheduling resource that utilizes this distribution is to calibrating the launch time of UE, and calibration information is carried in the SS order sends to this UE.
When sending the SS order to UE, can send to this UE by the descending scheduling resource of HSDPA or HSUPA, promptly the SS order can be sent, also the SS order can be sent by the E-AGCH that uses in the HSUPA data transmission procedure by the HS-SCCH that uses in the HSDPA transfer of data.
Step 305: restart the calibration timer and carry out timing, go to execution in step 303.
NodeB receives upstream data that UE sends or signaling and shows that this NodeB for this UE has distributed scheduling resource, therefore, can restart the calibration timer, carries out next time that NodeB is the control of the time of this UE allocation schedule resource, prevents the step-out of UE.
When step 306:NodeB sends authorization message to this UE, stop the timing of this calibration timer, after waiting to receive the upstream data or signaling of this UE transmission, execution in step 305.
In this step, NodeB sends authorization message to this UE and shows that this NodeB has distributed scheduling resource for this UE, therefore, can be when this UE sends authorization message at NodeB, stop this calibration timer timing, be that this scheduling resource distribution at this UE is finished, need do not carry out the control of this scheduling of resource time; When treating to finish for resource continuous time that this UE distributes, restart the calibration timer, beginning is the control of the time of this UE allocation schedule resource next time, prevents the step-out of UE.
When NodeB sends authorization message to this UE, use E-AGCH to send, referring to Fig. 2, therefore, NodeB can wait for Δ T+T after sending authorization message to UE
RDIDuration after restart the calibration timer.Wherein, Δ T is the time interval between the E-PUCH transmission for the first time after D-AGCH and this D-AGCH, and value is between 4 to 15 time slots usually; T
RDIBe the duration for the scheduling resource in this UE branch of authorization message indication.
Step 307:NodeB receive that RNC sends at the non-scheduling resource information of this UE the time, adopt non-scheduled transmission to keep uplink synchronous, and close the calibration timer.
Close the calibration timer, be about to calibrate timer and be set to close (Disable) state, this calibration timer stops timing.
In this step, distributed non-scheduling resource if RNC is UE, then this RNC sends non-scheduling resource information to NodeB and UE, and UE can utilize distributed time slot and code channel to send upstream data on E-PUCH according to this non-scheduling resource information.Data on this non-scheduling resource E-PUCH send complete discontinuous transmission (DTX) pattern that adopts, if promptly UE has uplink business data to need to send, then send this uplink business data, if there is not uplink business data to need to send, then, then can send some specific informations in order to keep synchronously.
The process of the non-scheduled transmission maintenance of employing uplink synchronous can be as shown in Figure 4 in this step, and UE sends upstream data to NodeB on non-scheduling resource E-PUCH; NodeB carries out generating the SS order with step calibration to this UE according to the upstream data that receives on E-PUCH, and is carrying this SS order of transmission on the non-scheduling resource E-HICH of ACK or NACK; When UE receives this SS order on E-HICH, according to the SS order, adjust the launch time of self, thereby keep uplink synchronous according to synchronous adjustment step-length.Because adopting the mode of non-scheduled transmission to keep uplink synchronous is prior art, does not repeat them here.
In above-mentioned flow process, if NodeB receives the dispatch request that UE sends in default time threshold, this dispatch request indication UE has uplink business data to need to send, then in order to guarantee to be as early as possible this UE allocation schedule resource, reduce the number of times of calibration timer expiry, NodeB can start the scheduling timer and carry out timing when receiving the dispatch request of UE transmission, and according to the timing duration t that dispatches timer
WaitEach UE is carried out the setting of scheduling of resource priority, t
WaitBig more, scheduling of resource priority is high more.More preferably, can be at t
WaitReach f
AsyDuring * TA, carry out the setting of UE scheduling of resource priority again, with t
Wait〉=f
AsyThe scheduling of resource priority of the UE of * TA is set to be only second to the UE that retransmits, and, t
WaitBig more, scheduling of resource priority is high more.Wherein, TA is the time threshold of calibration timer, f
AsyBe the step-out factor, 0≤f
Asy≤ 1, concrete value can pre-determine according to throughput of system or experiment simulation result etc.In addition, when the timing duration of calibration timer reaches default time threshold, timing zero clearing that will the scheduling timer, and the timing that stops to dispatch timer.
More than be the description that the method that the embodiment of the invention provides is carried out, below the NodeB that the embodiment of the invention provides be described in detail.The NodeB structure chart that Fig. 5 provides for the embodiment of the invention, as shown in Figure 5, this NodeB can comprise: receiving element 501, calibration timer 502, transmitting element 503, allocation units 504 and order generation unit 505.
Receiving element 501 when being used to receive the scheduling resource information that sends at UE or discharging the non-scheduling resource notice, sends initiate notification to calibration timer 502, receives upstream data or signaling that UE sends.
Transmitting element 503 is used for sending authorization message to UE, and sends the SS order that order generation unit 505 generates by the descending scheduling resource of HSDPA or HSUPA to UE.
Should can specifically be provided with according to the requirement of uplink synchronous retention time by default time threshold, the uplink synchronous retention time that this time threshold is less than or equal to system is set, thereby avoid NodeB after the scheduling resource information or release non-scheduling resource notice that receive at this UE, can not be UE allocation schedule resource for a long time.
If reaching default thresholding, calibration timer 502 do not receive upstream data or the signaling that this UE sends yet, do not send authorization message to this UE yet, show that allocation units 504 are not this UE allocation schedule resource as yet, for the uplink synchronous stability allocation units 504 that keep UE are this UE allocation schedule resource immediately.Can adopt this UE to be set to the mode of the limit priority of resource allocation, make NodeB can be this UE allocation schedule resource immediately.
This NodeB can also comprise: first restarts trigger element 506, and the timing length that is used to calibrate timer 502 when receiving element 501 receives upstream data that UE sends or signaling, sends to calibration timer 502 and to restart notice in time threshold.
First restarts trigger element 506 can be when the dispatch request that receives ACK that UE sending on the HS-SICH or NACK or send on E-RUCCH or E-PUCH, sends to calibration timer 502 and restarts notice.
Receiving element 501 receives upstream data that UE sends or signaling and shows and therefore, can restart calibration timer 502 for this UE has distributed scheduling resource that carrying out is the control of the time of this UE allocation schedule resource, prevents the step-out of UE next time.
This NodeB can also comprise: second restarts trigger element 507, be used to calibrate the timing length of timer 502 in time threshold, transmitting element 503 sends authorization message to UE, then send expiry notification to calibration timer 502, when the resource continuous time of distributing for this UE finishes, restart notice to 502 transmissions of calibration timer.
Transmitting element 503 sends authorization message to this UE and shows and distributed scheduling resource for this UE, therefore, can be when this UE sends authorization message, stop the timing of this calibration timer 502, be that this scheduling resource distribution at this UE is finished, need do not carry out the control of this scheduling of resource time; After treating that receiving element 501 receives the upstream data or signaling of this UE transmission, restart calibration timer 502, beginning is the control of the time of this UE allocation schedule resource next time, prevents the step-out of UE.
This NodeB can also comprise: start trigger element 508, scheduling timer 509 and priority unit 510 is set.
Start trigger element 508, be used to calibrate the timing duration of timer 502 in time threshold, receiving element 501 receives the dispatch request that UE sends, and when this dispatch request indication has uplink business data to send, send initiate notification to scheduling timer 509, when the timing time of calibration timer 502 reaches default time threshold, send the zero clearings notice to scheduling timer 509.
This dispatch request can be that UE sends on E-RUCCH or E-PUCH.
Priority is provided with unit 510, is used for the timing duration t according to scheduling timer 509
WaitUE is carried out the setting of scheduling of resource priority.
Carrying out priority when being provided with, can be to t
Wait〉=f
AsyThe UE of * TA carries out the setting of scheduling of resource priority, t
WaitBig more, scheduling of resource priority is high more; Wherein, 0≤f
Asy≤ 1, and f
AsyValue pre-determine according to throughput of system or experiment simulation result, TA is the time threshold of described calibration timer.
This NodeB can also comprise: judging unit 511 and non-scheduling service unit 512.
Receiving element 501 also is used to receive the non-scheduling resource information at this UE.
Judging unit 511 is used to judge whether receiving element 501 receives the non-scheduling resource information at UE, if then send synchronization notice to non-scheduling service unit 512, and close notice to 502 transmissions of calibration timer.
By above description as can be seen, method and system provided by the invention can have the following advantages:
(1) NodeB receives at the scheduling resource information of UE or when discharging the non-scheduling resource notice, starts default calibration timer and carry out timing; If the timing duration of this calibration timer reaches default time threshold, NodeB does not receive upstream data or the signaling that UE sends as yet, and do not send authorization message to this UE, then NodeB is this UE allocation schedule resource, and sends simultaneous bias SS order by the descending scheduling resource of HSDPA or HSUPA to this UE.Promptly, the calibration timer controls the time that NodeB is a UE allocation schedule resource by being set, receive upstream data or the signaling that UE sends if surpassed the time threshold of setting, and do not send authorization message to this UE, show that NodeB is not this UE allocation schedule resource as yet, at this moment, NodeB is this UE allocation schedule resource immediately, prevent that NodeB is in the scheduling resource information that receives UE or after discharging the non-scheduling resource notice, can not and can't send the SS order for UE allocation schedule resource for a long time to UE, and the step-out of the UE that causes, thereby guaranteed the stability of uplink synchronous.
(2) NodeB can judge whether RNC is that UE has distributed non-scheduling resource, if for UE has distributed non-scheduling resource, then use the non-scheduled transmission that adopts HSUPA to keep the uplink synchronous of described UE, and close described calibration timer, if for UE has distributed non-scheduling resource, then when receiving at the scheduling resource information of UE or discharging the non-scheduling resource notice, adopt the scheduled transmission of HSDPA and HSUPA to keep the uplink synchronous of UE, and start default calibration timer and carry out timing and control the time that NodeB is a UE allocation schedule resource.This mode can make full use of network side when having distributed non-scheduling resource for UE be that the non-scheduling resource that UE disposes is kept the synchronous of UE; Also can be when not distributing non-scheduling resource for UE, needn't be in addition, UE only be used to the non-scheduling resource that keeps synchronous for disposing, made full use of the scheduling resource that has disposed, save system resource more, improved power system capacity.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (15)
1. a method that keeps uplink synchronous is characterized in that, this method comprises:
A. base station node B receives at the scheduling resource information of user terminal UE or when discharging the non-scheduling resource notice, starts default calibration timer and carry out timing;
If B. the timing duration of this calibration timer reaches default time threshold, described NodeB does not receive upstream data or the signaling that described UE sends as yet, and do not send authorization message to described UE, then described NodeB is this UE allocation schedule resource, and sends simultaneous bias SS order by the descending scheduling resource of high-speed downlink packet access HSDPA or high speed uplink packet access HSUPA to this UE;
Wherein, described NodeB comprises for the scheduling resource that this UE distributes: the priority of resource allocation that described NodeB is provided with described UE is a limit priority, and distributes minimal code channel resource and the MIN power resource of presetting for this UE.
2. method according to claim 1 is characterized in that, also comprises between described steps A and step B:
Step C: if the timing duration of described calibration timer is in described time threshold, described NodeB receives upstream data or the signaling that described UE sends, and then restarts described calibration timer and carries out timing, and re-execute described step C, otherwise, continue execution in step B.
3. method according to claim 1 is characterized in that, describedly also comprises between described steps A and step B:
Step D: if the timing duration of described calibration timer is in described time threshold, described NodeB sends authorization message to described UE, then stop the timing of described calibration timer, and when the resource continuous time that is described UE distribution finishes, restart described calibration timer and carry out timing, and re-execute described step D, otherwise, execution in step B continued; Wherein, the resource continuous temporal information of distributing for described UE is carried in the described authorization message.
4. method according to claim 1 and 2, it is characterized in that, upstream data or signaling that described UE sends comprise: success response ACK that described UE sends on high-speed shared information channel HS-SICH or failure response NACK, perhaps, the dispatch request that on enhanced uplink random access channel E-RUCCH, sends of described UE.
5. method according to claim 4, it is characterized in that, described NodeB receives the dispatch request that described UE sends in described time threshold, and when this dispatch request indication has uplink business data to send, startup is carried out timing at the scheduling timer of this UE, and according to the timing duration t of described scheduling timer
WaitUE is carried out the setting of scheduling of resource priority, when the timing duration of described calibration timer reaches default time threshold,, and stop the timing of described scheduling timer the timing zero clearing of described scheduling timer.
6. method according to claim 5 is characterized in that, according to the timing duration t of described scheduling timer
WaitUE is carried out the setting of scheduling of resource priority to be comprised:
To t
Wait〉=f
AsyThe UE of * TA carries out the setting of scheduling of resource priority, t
WaitBig more, scheduling of resource priority is high more; Wherein, 0≤f
Asy≤ 1, and f
AsyValue pre-determine according to throughput of system or experiment simulation result, TA is the time threshold of described calibration timer.
7. method according to claim 1 is characterized in that, described default time threshold is less than or equal to the uplink synchronous retention time of system.
8. method according to claim 1 is characterized in that, the descending scheduling resource of described HSDPA comprises high-speed shared control channel HS-SCCH; The descending scheduling resource of described HSUPA comprises: absolute grant channel E-AGCH.
9. method according to claim 1 is characterized in that, also comprises before described steps A: described NodeB judges whether RNC is that described UE has distributed non-scheduling resource, if not, then continues to carry out described steps A; If then adopt the non-scheduled transmission of HSUPA to keep the uplink synchronous of described UE, and close described calibration timer.
10. method according to claim 9 is characterized in that, the non-scheduled transmission of described employing HSUPA keeps uplink synchronous to comprise:
Described UE sends upstream data to described NodeB on for the non-scheduling resource enhancing uplink physical channel E-PUCH that self distributes; Described NodeB carries out with step calibration and generates SS ordering to described UE according to send upstream data on E-PUCH, is confirming on the indicating channel E-HICH this SS order to be sent to described UE; Described UE adjusts the launch time of self according to described SS order.
11. a base station is characterized in that, this base station comprises: receiving element, calibration timer, transmitting element, allocation units and order generation unit;
Described receiving element when being used to receive the scheduling resource information that sends at UE or discharging the non-scheduling resource notice, sends initiate notification to described calibration timer, receives upstream data or signaling that UE sends;
Described calibration timer when being used to receive described initiate notification, picks up counting;
Described transmitting element is used for sending authorization message to described UE, and sends the SS order that described order generation unit generates by the descending scheduling resource of HSDPA or HSUPA to described UE;
Described allocation units, be used for reaching default time threshold at the timing duration of described calibration timer, described receiving element does not receive up-downgoing data or the signaling that described UE sends as yet, and described transmitting element is described UE allocation schedule resource not when described UE sends authorization message; Wherein, the scheduling resource that distributes for described UE comprises: the priority of resource allocation that described UE is set is a limit priority, and is that described UE distributes default minimal code channel resource and MIN power resource;
Described order generation unit, being used for according to described allocation units is that the scheduling resource that described UE distributes generates the SS order.
12. base station according to claim 11, it is characterized in that, this base station also comprises: first restarts trigger element, the timing length that is used for described calibration timer is in described time threshold, when described receiving element receives upstream data that described UE sends or signaling, send to described calibration timer and to restart notice;
Described calibration timer, also be used to receive restart notice after, restart and pick up counting.
13. base station according to claim 11, it is characterized in that, this base station also comprises: second restarts trigger element, the timing length that is used for described calibration timer is in described time threshold, described transmitting element sends authorization message to described UE, then send expiry notification, when the resource continuous time that is described UE distribution finishes, restart notice to described calibration timer transmission to described calibration timer;
Described calibration timer stops timing after also being used to receive expiry notification, receive restart notice after, restart beginning regularly.
14., it is characterized in that this base station also comprises: start trigger element, scheduling timer and priority the unit is set according to claim 11 or 12 described base stations;
Described startup trigger element, the timing duration that is used for described calibration timer is in described time threshold, described receiving element receives the dispatch request that described UE sends, and when this dispatch request indication has uplink business data to send, send initiate notification to the scheduling timer, when the timing time of described calibration timer reaches described time threshold, send the zero clearing notice to described scheduling timer;
Described scheduling timer, after being used to receive initiate notification, startup picks up counting, receive zero clearing notice after, with the timing zero clearing and stop timing;
Described priority is provided with the unit, is used for the timing duration t according to described scheduling timer
WaitUE is carried out the setting of scheduling of resource priority;
Described allocation units also are used for according to described priority the scheduling of resource priority that the unit is provided with being set, to described UE allocation schedule resource.
15. base station according to claim 11 is characterized in that, this base station also comprises: judging unit and non-scheduling service unit;
Described receiving element also is used to receive the non-scheduling resource information at described UE;
Described judging unit is used to judge whether described receiving element receives the non-scheduling resource information at described UE, if then send synchronization notice to the non-scheduling service unit, and close notice to described calibration timer transmission;
Described non-scheduling service unit, after being used to receive synchronization notice, the non-scheduled transmission of employing HSUPA keeps the uplink synchronous of described UE;
Described calibration timer, also be used to receive close notice after, stop timing.
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| CN101355818B (en) * | 2008-09-17 | 2011-04-20 | 新邮通信设备有限公司 | Transmission method, system and apparatus for internet protocol voice communication in wireless system |
| CN101730244B (en) * | 2008-10-30 | 2013-01-02 | 电信科学技术研究院 | Resource allocation method, base station and user end |
| CN101841905B (en) * | 2009-03-18 | 2012-12-26 | 电信科学技术研究院 | Method and base station for indicating restart of time alignment timer of terminal |
| CN101932033A (en) * | 2009-06-26 | 2010-12-29 | 鼎桥通信技术有限公司 | Method for configuring or releasing resources of semi-continuous channel |
| CN105681003B (en) * | 2009-06-29 | 2019-01-18 | 瑞典爱立信有限公司 | Method and arrangement in wireless communication system |
| CN103491597B (en) * | 2013-09-06 | 2016-05-11 | 京信通信系统（中国）有限公司 | A kind of connection control method of micro-base station and device |
| CN108353390A (en) * | 2015-11-11 | 2018-07-31 | 华为技术有限公司 | A kind of method of uplink scheduling and base station |
| WO2018170742A1 (en) * | 2017-03-21 | 2018-09-27 | Oppo广东移动通信有限公司 | Method enabling terminal to maintain uplink synchronization, and terminal |
| CN108810976B (en) * | 2017-05-05 | 2023-09-29 | 华为技术有限公司 | Method and device for transmitting data |
| CN107317602A (en) * | 2017-05-16 | 2017-11-03 | 北山网电电力技术（北京）有限公司 | Power line carrier communication data transmission method based on QoS service quality |
| CN109429323B (en) * | 2017-06-30 | 2021-06-25 | 中国电信股份有限公司 | Method, device and system for activating and deactivating synchronization of transmission time interval-B (TTI-B) |
| CN113630860B (en) * | 2020-05-06 | 2023-11-24 | 北京佰才邦技术股份有限公司 | Information confirmation method, terminal equipment and network equipment |
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