CN102932903A - Uplink synchronization control method and device, and base station - Google Patents
Uplink synchronization control method and device, and base station Download PDFInfo
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Abstract
The invention discloses an uplink synchronization control method. The uplink synchronization control method comprises the following steps that: a base station receives a time slot signal which is sent by terminal equipment, and measures a time shift value RxTiming of the arrival time of the time slot signal; the base station determines a time shift compensation value which is stored by the terminal equipment; and the base station generates a synchronization shift (SS) command according to a sum of an accumulated value delta Temp of the time shift compensation value and the RxTiming, and sends the SS command to the terminal equipment. By the invention, the uplink synchronization control accuracy of the base station can be improved, uplink synchronization control over the terminal equipment is well realized, and the problem of low uplink synchronization control accuracy is solved. The invention also discloses an uplink synchronization control device and the base station.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of ascending synchronous control method, device and base station.
Background technology
Along with increasing sharply of mobile communication subscriber quantity and improving constantly of user's request, more and more higher to the Mobile Communication Service quality requirement, the raising of service quality has also brought challenge to Synchronization Control simultaneously, and is namely also higher to convergence rate and the precise control requirement of Synchronization Control.Particularly for the communication system of time-division duplex, such as the TD-SCDMA system, especially obvious to the accuracy requirement of Synchronization Control.
Synchronization Control refers to: the time slot signal of controlling the different terminal equipment (User Equipment, UE) in same residential quarter, the same time slot arrives the process of base station receiver synchronously.The UE that belongs to same cell base station and take same time slot may change at any time apart from different and this distance, so will carry out respectively Synchronization Control to the time of each UE sending time slots signal, so that the time slot signal that each UE sends can as far as possible synchronously arrive base station receiver.
Comparatively effectively ascending synchronous control method is at present: base station measurement go out UE sending time slots signal the time of advent the time partially be worth (RxTiming), then the base station sends simultaneous bias (Synchronization Shift according to the RxTiming that measures to UE, SS) order, UE adjusts the transmitting time of time slot signal according to the SS order that receives.
Particularly, the process of above-mentioned ascending synchronous control method is:
The first step: the base station pre-determines the expected approach time of the time slot signal of UE transmission.
Second step: the actual time of arrival of the time slot signal of UE transmission is measured in the base station within the predetermined time interval.
The 3rd step: the base station compares described actual time of arrival and expected approach time, obtains the RxTiming of this UE sending time slots signal, and RxTiming produces the SS order accordingly.
Described RxTiming represents the relation of actual time of arrival and expected approach time.
If the actual time of arrival of described time slot signal is later than the expected approach time (RxTiming is greater than 0) of described time slot signal, then the SS order that produces of base station is used to indicate UE sending time slots signal in advance in the available ascending time slot of the next one, as filling in " UP " at the specific field of SS order, as the sign that shifts to an earlier date the sending time slots signal.
If the actual time of arrival of described time slot signal is early than the expected approach time (RxTiming is less than 0) of described time slot signal, then the SS order of base station generation is used to indicate UE and delays the sending time slots signal in the available ascending time slot of the next one, as filling in " DOWN " at the specific field of SS order, as the sign of delaying the sending time slots signal.
If the actual time of arrival of described time slot signal equals the expected approach time (RxTiming equals 0) of described time slot signal, then the SS order that produces of base station is used to indicate UE and does not change time at the available ascending time slot sending time slots signal of the next one, as filling in " 0 " at the specific field of SS order, as the sign that does not change the sending time slots signal time.
The 4th step: described base station sends the SS order to described UE.
The 5th step: described UE adjusts the time of next available ascending time slot sending time slots signal according to the SS order that receives.
In described ascending synchronous control method, the base station generates the SS order according to the RxTiming that measures, determines that UE needs sending time slots signal in advance, delays the sending time slots signal or do not change time of sending time slots signal.
But in described ascending synchronous control method, the base station is not to return the SS order to UE immediately behind the time slot signal that receives the UE transmission, measures RxTiming but need to take certain duration, exists and measures time delay; Simultaneously, it is next according to described RxTiming generation SS order that inside of base station also needs to take certain duration, has the generation time delay (mainly containing measuring process, data forwarding process, upper strata algorithm process process, SS order reception and the shared duration of process of transmitting) of SS order; Distinguishingly, certain time delay also can be brought to the processing of abnormal conditions in the base station, as: the time delay brought when congested appears at network.
Because may there be above-mentioned several time delay in the base station in the process of carrying out described ascending synchronous control method, therefore, the SS order that the base station only produces according to this RxTiming value that measures, differ and reflect exactly surely the state of UE sending time slots signal in the available ascending time slot of the next one, after UE adjusts the time of sending time slots signal according to the SS order that receives, also differing reaches higher synchronous accuracy surely, even may be because the poor service disconnection of UE or the situation of termination of causing of synchronous regime in dark weak environment.
Summary of the invention
The embodiment of the invention provides a kind of ascending synchronous control method, device and base station, to solve in the prior art synchronously the problems such as accuracy is not good.
A kind of uplink synchronous control command production method comprises:
The time slot signal that the base station receiving terminal apparatus sends, and measure the time inclined to one side value RxTiming of the time of advent of described time slot signal;
The base station determines to be the partial compensation for the time value of described terminal equipment storage, described partial compensation for the time value is: the base station determines according to the sign that carries in the simultaneous bias SS order that has sent to this terminal equipment, and described sign is used to indicate the mode that terminal equipment is adjusted the time slot signal transmitting time;
The base station produces the SS order and sends to terminal equipment according to accumulated value Δ Temp and the RxTiming sum of the described partial compensation for the time value of determining.
A kind of uplink synchronous control device comprises:
The partial compensation for the time generation module, be used for determining at least one partial compensation for the time value and storing according to the sign that at least one the simultaneous bias SS order that sends to this terminal equipment has been carried, described sign is used to indicate the mode that terminal equipment is adjusted the time slot signal transmitting time;
Receiver module is used for the time slot signal that receiving terminal apparatus sends;
Measurement module is for the time inclined to one side value RxTiming of the time of advent of measuring described time slot signal;
SS orders generation module, be used for to determine that the partial compensation for the time generation module be at least one partial compensation for the time value of described terminal equipment storage, and according to accumulated value Δ Temp and the RxTiming sum of at least one partial compensation for the time value of determining, generation SS orders;
SS orders sending module, is used for the SS order that SS orders generation module to produce is sent to described terminal equipment.
A kind of base station comprises described uplink synchronous control device.
Beneficial effect of the present invention is as follows:
In the scheme of the embodiment of the invention, the base station considers this RxTiming that measures, and the base station the content of the SS order that sends to this UE the last period in the duration, be that UE produces the SS order.Because the RxTiming that the solution of the present invention not only measures this is as the condition that produces the SS order, also will send to the SS order of UE also as the condition that produces the SS order, the interior UE of duration the last period that is about to produces the condition of SS order to the adjustment state of the time of sending time slots signal as this, so that the SS of this generation order more can reflect the state of UE sending time slots signal in the available ascending time slot of the next one, after UE adjusts the time of sending time slots signal according to the SS order of this generation, but the synchronous accuracy of Effective Raise UE.
Description of drawings
Fig. 1 is uplink synchronous control command production method schematic diagram in the embodiment of the invention one;
Fig. 2 be in the embodiment of the invention two Home eNodeB in the TD-SCDMA system to the ascending synchronous control method schematic diagram of UE;
Fig. 3 is a kind of uplink synchronous control device schematic diagram in the embodiment of the invention three.
Embodiment
The technical problem that proposes in order to solve the present invention, the embodiment of the invention proposes a kind of uplink synchronous control program, the base station is when being a certain UE generation SS order, consider the RxTiming that this measures, and the base station the content of the SS order that sends to this UE the last period in the duration, be that UE produces the SS order, the foundation of adjusting as the time of UE sending time slots signal in the available ascending time slot of the next one.Because the RxTiming that the solution of the present invention not only measures this is as the condition that produces the SS order, also will send to the SS order of UE also as the condition that produces the SS order, the interior UE of duration the last period that is about to produces the condition of SS order to the adjustment state of the time of sending time slots signal as this, so that the SS of this generation order more can reflect the state of UE sending time slots signal in the available ascending time slot of the next one, after UE adjusts the time of sending time slots signal according to the SS order of this generation, but the synchronous accuracy of Effective Raise UE.
Need to prove, the base station that relates in the various embodiments of the present invention can be the macro base station in the 3G network, such as the macro base station in the TD-SCDMA system, also can be the Home eNodeB (Home NodeB, HNB) in the TD-SCDMA system.If the embodiment of the invention is applied to the Home eNodeB environment, then because Home eNodeB has the advantage of having improved indoor covering, improving indoor access rate, reduced time delay, therefore, when being applied in the scheme of the embodiment of the invention, the scheme of the embodiment of the invention can improve uplink synchronous control convergence rate and precise control effectively, can satisfy Home eNodeB to the requirement of the uplink synchronous process of high accuracy.
Describe the present invention program in detail below in conjunction with specific embodiment.
Embodiment one:
As shown in Figure 1, the step schematic diagram for ascending synchronous control method in the embodiment of the invention one may further comprise the steps:
Step 101: the base station receives the time slot signal that UE sends.
Because can belong to a plurality of UE under the base station, then the scheme of the embodiment of the invention one is the scheme for arbitrary UE, uplink synchronous control can all be carried out according to the scheme of the present embodiment one to each UE of ownership in the base station.
Step 102: the RxTiming of the described time slot signal of base station measurement.
In this step, the mode of base station measurement RxTiming is:
The expected approach time of base station default time slot signal in this locality, and measuring the actual time of arrival that receives the time slot signal that UE sends is with the difference of actual time of arrival and the expected approach time value as RxTiming.
If RxTiming is greater than 0, the actual time of arrival of expression UE sending time slots signal is later than expection;
If RxTiming is less than 0, the actual time of arrival of expression UE sending time slots signal is early than expection;
If RxTiming equals 0, the actual time of arrival of expression UE sending time slots signal equals expection.
Step 103: the base station determines to be the partial compensation for the time value of described UE storage.
In the scheme of the present embodiment one, when the UE that Radix Angelicae Sinensis belongs to the base station was activated, the base station, was used for being stored as the array that this UE distributes for this UE opens up a memory space according to the array length of setting, and the element in the described array is the partial compensation for the time value.
Described partial compensation for the time value is: the sign that carry in ordering according to the simultaneous bias SS that sends to this terminal equipment the base station is determined, described sign is used to indicate the mode that terminal equipment is adjusted the time slot signal transmitting time, namely is used to indicate the transmitting time how described terminal equipment adjusts time slot signal.
As: when the sign that carry in the upper SS order that once sends to UE the base station was " UP ", indication UE in expression base station shifted to an earlier date the sending time slots signal, and the partial compensation for the time value that then can be sent the SS order last time is set to-1; As: when the sign that carry in the upper SS order that once sends to UE the base station was " DOWN ", indication UE in expression base station delayed the sending time slots signal, and the partial compensation for the time value that then can be sent the SS order last time is set to 1; As: when the sign that carries during the SS of the last SS of transmission order orders was " 0 ", indication UE in expression base station did not change the time of sending time slots signal, and the partial compensation for the time value that then can be sent the SS order last time is set to 0.
Suppose in setting duration before, the base station sent 5 SS orders to same UE, order the sign that carries the SS order that sends to the 5th to be respectively from the SS that sends for the 1st time: " DOWN ", " 0 ", " 0 ", " UP ", " UP ", the partial compensation for the time value of having stored that then this UE is corresponding is: 1,0,0 ,-1 ,-1.
Need to prove, also be not limited in SS order, carry other in the present embodiment one and identify to represent how to adjust UE sending time slots signal in advance in the available ascending time slot of the next one, and also be not limited to other parameter values and represent the partial compensation for the time value.
In the scheme of the present embodiment one, UE is activated and first to base station sending time slots signal, then the base station is defined as the array sky that this UE distributes if work as.At this moment, UE does not also have the partial compensation for the time value.
UE is activated and M (M is greater than 1) is inferior to base station sending time slots signal if work as, and then the base station is defined as interior existing at least one partial compensation for the time value of array that this UE distributes.
Step 104: base station at least one partial compensation for the time value of having stored that UE is corresponding adds up, and obtains partial compensation for the time accumulated value Δ Temp.
If in the present embodiment, be UE storage partial compensation for the time value according to the mode of array, then in this step 104, the base station can be read at least one partial compensation for the time value and be added up from the array for this UE distribution.
Distinguishingly, if UE is first to base station sending time slots signal, the array of distributing for this UE be sky, then can also see the accumulation result in this step as sky.
Step 105: the base station produces the SS order according to RxTiming and the Δ Temp sum measured.
In this step, the base station is with RxTiming and Δ Temp addition, obtain the time offset estimation value, this time offset estimation value combines all the partial compensation for the time values in this RxTiming that measures and the partial compensation for the time array, the base station can produce the SS order according to this time offset estimation value, namely determines according to the time offset estimation value which kind of adjustment the base station carries out to next ascending time slot sending time slots signal time of this UE.
The method that produces the SS order according to described time offset estimation value is:
With described time offset estimation value and 0 relatively, if the time offset estimation value, represents that this base station receives the time slot signal that UE sends and receives partially evening greater than 0, then the sign that carries in the SS order is set to UP, requires UE to shift to an earlier date the sending time slots signal;
If the time offset estimation value, represents this base station less than 0 and receives the inclined to one side morning of time slot signal reception that UE sends, then the sign that carries in the SS order is set to DOWN, require UE to delay the sending time slots signal;
If the time offset estimation value equals 0, then the sign that carries in the SS order can be set to 0, require UE not change the time of sending time slots signal.
For example: establishing the RxTiming value that the base station records is 1, the array length that distributes for UE be 5 and array in stored 5 partial compensation for the time values, they are respectively: 1,0,0 ,-1 ,-1, Δ Temp=1+0+0+ (1)+(1)=-1 then, time offset estimation value=RxTiming+ Δ Temp=1+ (1)=0, at this moment, the sign that carries in the SS order is set to 0.
Step 106: the base station is sent to UE with the SS order, and UE adjusts the transmitting time of next available ascending time slot time slot signal according to the SS order that receives.
In the scheme of this step 106, UE according to the sign that carries in the described SS order, adjusts the transmitting time of next available ascending time slot time slot signal after receiving the SS order, and at described transmitting time sending time slots signal, realized the uplink synchronous control procedure of base station to UE.
By step 101 in the embodiment of the invention one to the method for step 106, the adjustment that comprehensive this RxTiming that measures and UE had carried out the time of sending time slots signal, determine that this produces the SS order, so that the SS of this generation order more can reflect the state of UE sending time slots signal in the available ascending time slot of the next one, but the synchronous accuracy of Effective Raise UE.
For example, suppose that this RxTiming value that measures is 1, then according to the scheme of prior art, the sign that the base station will be carried in the SS order that this sends to UE requires UE to shift to an earlier date the sending time slots signal at next ascending time slot for " UP "; And in the step 105 of the present embodiment one, if the SS that sends for 5 times before order has required UE to shift to an earlier date the sending time slots signal generally, in conjunction with this measured value, then the base station sign that will carry in the SS order that this sends to UE is " 0 ".
More preferably, after this step 105 produces the SS order, in the scheme of the present embodiment one, can also may further comprise the steps:
Step 107: this will be determined to the partial compensation for the time value that this UE generates according to the SS order of this generation in the base station, be stored in the array of described UE distribution.
Particularly, the sign that the base station is adjusted the time of UE sending time slots signal according to conduct in the SS order, determine the partial compensation for the time value, for example, if the sign that carries in the SS that produces in the step 105 order is " 0 ", indication UE in expression base station does not change the time of sending time slots signal, and the partial compensation for the time value of then determining is 0.
The mode of the described partial compensation for the time value of base station stored is:
Suppose the base station be UE to distribute the array length of array be N (N is not less than 1), can store N partial compensation for the time value in the expression array.
If before this partial compensation for the time value that obtains of storage, stored N partial compensation for the time value in the array, then when the partial compensation for the time value that this is obtained is stored to array, with this partial compensation for the time value that obtains first element as array, N-1 element of first element to the moves one successively afterwards in the former array, and former N element overflows.If before this partial compensation for the time value that obtains of storage, the partial compensation for the time value quantity of having stored in the array is less than N, then when the partial compensation for the time value that this is obtained was stored to array, with this partial compensation for the time value that obtains first element as array, each element moved one successively afterwards in the former array.
In the scheme of the present embodiment one, array length N can rule of thumb be worth definite, also can be according to the network environment calculative determination once, or when each network environment changes, dynamically determine.
Particularly, include but not limited to following definite mode according to network environment calculative determination array length N:
The first step: the subframe numbers of the time slot signal that UE sends, i.e. SFN_start are determined to receive in the base station.
Second step: the base station is determined according to the time slot signal that receives, the subframe numbers when producing and sending the SS order, i.e. SFN_end.
The sub-frame number at interval among the described SFN_end to SFN_start represents base station receiving slot signal, and is the time delay that UE produced, sent SS in the base station.
When definite array length N, can determine the value of SFN_end-SFN_start according to the mode of prior art, also can according to the mode of step 101 of the present invention to step 106, determine the value of SFN_end-SFN_start.
The 3rd step: the base station is set as array length N with the value of SFN_end-SFN_start+1.
Because UE response SS order needs the time of a subframe, therefore, the base station is with the value of the SFN_end-SFN_start+1 synchronization delayed time as base station and UE, the number of sub frames that this synchronization delayed time is represented is as array length, namely as the partial compensation for the time value quantity that can be used for adjusting this SS order, so that carry out the state that the related partial compensation for the time value of the present embodiment one scheme can reflect this synchronization delayed time.For example: if the synchronization delayed time of base station and UE is longer, then can adjust this SS order with more partial compensation for the time values, namely base station in one period long period be affected this Synchronization Control to the Synchronization Control of UE, make this Synchronization Control process more accurate.
Embodiment two:
Based on embodiment one described ascending synchronous control method, the embodiment of the invention two is elaborated to the ascending synchronous control method of the Home eNodeB in the TD-SCDMA system to UE take the TD-SCDMA system as example.As shown in Figure 2, said method comprising the steps of:
Step 201: the base station receives certain time slot signal that activates the current transmission of UE, and generates measurement message, comprises in the described measurement message: the channel type sign of the channel of the RxTiming of described time slot signal and the described time slot signal of transmission.
Can also comprise in the described measurement message: transformat indication (Transport Format Combination Indicator, TFCI), signal interference ratio (Signal to Interference, SIR), received signal code power (Received Signal Code Power, RSCP), carrier identification, UE sign, and the subframe numbers etc. that receives this time slot signal.
Step 202: the base station identifies according to described channel type, judges the channel type of the channel of the described time slot signal of transmission, if described channel type is DPCH (Dedicated Physical Channel, DPCH), then execution in step 203; Share indicating channel (Shared Information Channel for HS-DSCH, HSSICH) if described channel type is up-high speed, then execution in step 207.
In the scheme of the present embodiment two, the base station can be with regard to execution in step 201 at every turn behind the time slot signal that receives a UE transmission, but the base station can each generate measure message after execution in step 202 immediately, but can periodically read measurement message and the execution in step 202 that has generated.For example: the base station is read and is measured message and execution in step 202 take 5ms (subframe) as the cycle.
Step 203: the base station judges whether the DPCH channel is in the stage of mourning in silence, if then execution in step 204; Otherwise, execution in step 205.
When also comprising TFCI and SIR in described measurement message, the base station judges whether described channel is in the mode in the stage of mourning in silence and is:
The base station judge described TFCI whether be 0 and sir value whether normal, if TFCI be 0 and sir value normal, represent that then current state is non-mourning in silence the stage (such as the SB signal phase), revising simultaneously the DTX Status Flag is TRUE; Otherwise if TFCI is not 0 and sir value is normal or quiet interval time when reaching, the expression current state is the stage of mourning in silence, and revising simultaneously the DTX Status Flag is FSLSE.
Judge in the present embodiment whether channel is in the purpose in the stage of mourning in silence and is: when channel was in SB signal phase (non-mourning in silence the stage), channel can normally carry the SS order and keep link by this SB signal, realizes the normal transmission of SS; When channel is in when mourning in silence the stage, UE does not send real time slot signal, and at this moment, the RxTiming that the base station is measured in step 201 can not represent Link State, therefore, needs to distinguish the state of channel in the scheme of the present embodiment.
Step 204: the base station arranges sign in the SS order be 0, and this SS order is sent to UE, finishes the uplink synchronous process.
Step 205: add up to all the partial compensation for the time values in the array of distributing for this UE and obtain Δ Temp in the base station, and inclined to one side assessed value compares with 0 when the RxTiming that measures in the step 201 produced with described Δ Temp addition, and generation SS orders.
Step 206: the base station is sent to UE with the SS order that step 205 produces, and after the partial compensation for the time value in the renewal array, finishes the uplink synchronous process.
When described inclined to one side compensating for variations array cumulative, by the time inclined to one side assessed value produce the SS order, to upgrade the embodiment of the method one of the partial compensation for the time value in the array according to the SS order of this generation identical, repeat no more here.
Step 207: the base station judges whether the HSSICH channel is in the stage of mourning in silence, if then execution in step 208; Otherwise, execution in step 209.
Step 208: the base station arranges sign in the SS order be 0, and this SS order is sent to UE, finishes the uplink synchronous process.
Step 209: the base station judges whether the interval that described UE was scheduled apart from the last time surpasses threshold value, if surpass threshold value, execution in step 210, otherwise execution in step 211.
In the HSDPA business, use and share at a high speed down channel (High Speed Downlink Shared Channel, HS-DSCH) carry out transfer of data, because HS-DSCH is shared channel, must share the shared transfer resource of HS-DSCH by a plurality of users and come transport service, so need certain dispatching algorithm that each user is carried out the timesharing scheduling.
The base station determines that the described UE last time is scheduled the time to the interval of this time that is scheduled, compare with the threshold value GAP value of dispatching algorithm design, if the interval is more than or equal to GAP, expression UE was not scheduled in the long period section, the partial compensation for the time value of this UE of storage can not accurately reflect current user link situation in the base station, therefore can not be used for definite process of this SS order.Otherwise, still can be used for definite process of this SS order if the interval, represents the partial compensation for the time value of this UE of storage in the base station less than the GAP value.
Step 210: the base station will send to UE as the SS order of the following special physical channel (Acompanied Dedicated Physical Channel, ADPCH) of this HSSICH channel, finish the uplink synchronous process.
In the HSDPA business, there is the up ADPCH of the special use of always carrying synchronically controlling information in the HSSICH channel, when the information in the HSSICH channel can't be for generation of the order of SS accurately, the SS order that the SS order that can use the ADPCH of this HSSICH channel to produce produces as this HSSICH channel;
SS order among the described ADPCH can produce according to the mode of the present embodiment one, repeats no more here.
Step 211: add up to all the partial compensation for the time values in the array of distributing for this UE and obtain Δ Temp in the base station, and inclined to one side assessed value compares with 0 when the RxTiming that measures in the step 201 produced with described Δ Temp addition, and generation SS orders.
Step 212: the base station is sent to UE with the SS order that step 211 produces, and after the partial compensation for the time value in the renewal array, finishes the uplink synchronous process.
Embodiment three
Ascending synchronous control method based on embodiment one and embodiment two, embodiment three proposes a kind of uplink synchronous control device, as shown in Figure 3, described device comprises: receiver module 31, measurement module 32, SS order generation module 33, SS order sending module 34 and partial compensation for the time generation module 35, wherein:
Partial compensation for the time generation module 35, be used for determining at least one partial compensation for the time value and storing according to the sign that at least one the simultaneous bias SS order that sends to this terminal equipment has been carried, described sign is used to indicate the mode that terminal equipment is adjusted the time slot signal transmitting time; Receiver module 31 is used for the time slot signal that receiving terminal apparatus sends; Measurement module 32 is for the time inclined to one side value RxTiming of the time of advent of measuring described time slot signal; SS orders generation module 33, be used for to determine that the partial compensation for the time generation module be at least one partial compensation for the time value of described terminal equipment storage, and according to accumulated value Δ Temp and the RxTiming sum of at least one partial compensation for the time value of determining, generation SS orders; SS orders sending module 34, is used for the SS order that SS orders generation module to produce is sent to described terminal equipment.
More preferably, described SS order generation module 33 specifically is used for:
If Δ Temp and RxTiming sum greater than 0, are then carried in the SS order that produces and are used to indicate the sign that terminal equipment shifts to an earlier date the sending time slots signal;
If Δ Temp and RxTiming sum less than 0, are then carried in the SS order that produces and are used to indicate the sign that terminal equipment is delayed the sending time slots signal;
If Δ Temp and RxTiming sum equal 0, then in the SS order that produces, carry and be used to indicate the sign that terminal equipment does not change the sending time slots signal time.
Partial compensation for the time generation module 35 shifts to an earlier date the sending time slots signal if the sign that specifically carries for the SS order is used to indicate terminal equipment, and the partial compensation for the time value of then determining is-1; If the sign that carries in the SS order is used to indicate middle terminal equipment and delays the sending time slots signal, the partial compensation for the time value of then determining is 1; If the sign that carries in the SS order is used to indicate the time that terminal equipment does not change the sending time slots signal, the partial compensation for the time value of then determining is 0.
Described partial compensation for the time generation module 35 concrete at least one partial compensation for the time value that is used for determining are stored in the array of distributing to described terminal equipment; Described SS order generation module 33 specifically is used for determining to be the partial compensation for the time value of described terminal equipment storage from described array.
Described partial compensation for the time generation module 35 specifically is used for the partial compensation for the time value is stored in the array that array length is N.
Particularly, described array length N be rule of thumb be worth definite, or partial compensation for the time generation module 35 determines to receive the subframe numbers SFN_start of terminal equipment sending time slots signal, and determine according to the time slot signal that receives, subframe numbers SFN_end when producing and sending the SS order is set as array length N with the value of SFN_end-SFN_start+1.
Described device also comprises judge module 36, is used for judging that the channel type of the channel that transmits described time slot signal is that DPCH DPCH or up-high speed are shared indicating channel HSSICH.
Uplink synchronous control device in the present embodiment three also has the functional module that can realize the embodiment of the invention one and embodiment two each steps, repeats no more herein.
Uplink synchronous control device in the present embodiment three can be integrated in the base station, makes it to become the Novel base station that can realize the embodiment of the invention one and embodiment two each steps.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1. an ascending synchronous control method is characterized in that, the method comprises:
The time slot signal that the base station receiving terminal apparatus sends, and measure the time inclined to one side value RxTiming of the time of advent of described time slot signal;
The base station determines to be at least one partial compensation for the time value of described terminal equipment storage, described partial compensation for the time value is that the sign that carries during order according at least one the simultaneous bias SS that sends to this terminal equipment the base station is determined, described sign is used to indicate the mode that terminal equipment is adjusted the time slot signal transmitting time;
The base station produces the SS order and sends to terminal equipment according to accumulated value Δ Temp and the RxTiming sum of at least one partial compensation for the time value of determining.
2. the method for claim 1 is characterized in that, described partial compensation for the time value is determined in the following manner:
If the sign that carries in the SS order is used to indicate terminal equipment and shifts to an earlier date the sending time slots signal, the partial compensation for the time value of then determining is-1;
If the sign that carries in the SS order is used to indicate terminal equipment and delays the sending time slots signal, the partial compensation for the time value of then determining is 1;
If the sign that carries in the SS order is used to indicate the time that terminal equipment does not change the sending time slots signal, the partial compensation for the time value of then determining is 0.
3. the method for claim 1 is characterized in that, the base station produces the SS order, specifically comprises:
If Δ Temp and RxTiming sum greater than 0, are then carried in the SS order that produces and are used to indicate the sign that terminal equipment shifts to an earlier date the sending time slots signal;
If Δ Temp and RxTiming sum less than 0, are then carried in the SS order that produces and are used to indicate the sign that terminal equipment is delayed the sending time slots signal;
If Δ Temp and RxTiming sum equal 0, then in the SS order that produces, carry and be used to indicate the sign that terminal equipment does not change the sending time slots signal time.
4. such as the arbitrary described method of claim 1～3, it is characterized in that, the base station determines to be at least one partial compensation for the time value of described terminal equipment storage, specifically comprises:
At least one partial compensation for the time value of this terminal equipment is read in the base station from the array of distributing for described terminal equipment.
5. method as claimed in claim 4 is characterized in that, described array length N rule of thumb is worth definite; Perhaps
Described array in array length N is determined in the following manner:
The subframe numbers SFN_start of terminal equipment sending time slots signal is determined to receive in the base station;
The base station is determined according to the time slot signal that receives, the subframe numbers SFN_end when producing and sending the SS order;
The base station is set as array length N with the value of SFN_end-SFN_start+1.
6. method as claimed in claim 5 is characterized in that, store the partial compensation for the time value of determining according to the sign that carries in the SS order that has sent at every turn the base station, comprising:
The quantity of the partial compensation for the time value of having stored in the base station inquiry array:
If stored N partial compensation for the time value in the array, the partial compensation for the time value that then this is obtained is as the 1st element of array, and N-1 element of former first element to the moves successively afterwards, and former N element overflows;
If the partial compensation for the time value quantity of having stored in the array is less than N, the partial compensation for the time value that then this is obtained is as the 1st element of array, and former each element moves successively afterwards.
7. the method for claim 1 is characterized in that, after the time slot signal that the base station receiving terminal apparatus sends, and the base station determines be before described terminal equipment at least one partial compensation for the time value of storing, and described method also comprises:
The channel type of the channel of the described time slot signal of transmission is judged in the base station;
If the channel type of described channel is DPCH DPCH, judge then whether DPCH is in the stage of mourning in silence, if be in the stage of mourning in silence, then the sign with the SS order is set to 0, if not be in the stage of mourning in silence, then carrying out the base station definite has been the operation of at least one partial compensation for the time value of described terminal equipment storage;
If being up-high speed, the channel type of described channel shares indicating channel HSSICH, judge then whether HSSICH is in the stage of mourning in silence, if be in the stage of mourning in silence, then the sign with the SS order is set to 0, if not be in the stage of mourning in silence, further judge whether the time interval that described terminal equipment was scheduled apart from the last time surpass threshold value, if surpass threshold value, then carry out the operation that at least one partial compensation for the time value of storing for described terminal equipment is determined in the base station; Otherwise the base station will send to terminal equipment as the SS order of the following special physical channel ADPCH of this HSSICH.
8. a uplink synchronous control device is characterized in that, described device comprises:
The partial compensation for the time generation module, be used for determining at least one partial compensation for the time value and storing according to the sign that at least one the simultaneous bias SS order that sends to this terminal equipment has been carried, described sign is used to indicate the mode that terminal equipment is adjusted the time slot signal transmitting time;
Receiver module is used for the time slot signal that receiving terminal apparatus sends;
Measurement module is for the time inclined to one side value RxTiming of the time of advent of measuring described time slot signal;
SS orders generation module, be used for to determine that the partial compensation for the time generation module be at least one partial compensation for the time value of described terminal equipment storage, and according to accumulated value Δ Temp and the RxTiming sum of at least one partial compensation for the time value of determining, generation SS orders;
SS orders sending module, is used for the SS order that SS orders generation module to produce is sent to described terminal equipment.
9. device as claimed in claim 8 is characterized in that, SS orders generation module, if specifically be used for Δ Temp and RxTiming sum greater than 0, then carry in the SS order that produces and is used to indicate the sign that terminal equipment shifts to an earlier date the sending time slots signal; If Δ Temp and RxTiming sum less than 0, are then carried in the SS order that produces and are used to indicate the sign that terminal equipment is delayed the sending time slots signal; If Δ Temp and RxTiming sum equal 0, then in the SS order that produces, carry and be used to indicate the sign that terminal equipment does not change the sending time slots signal time.
10. device as claimed in claim 8 is characterized in that, described partial compensation for the time generation module shifts to an earlier date the sending time slots signal if the sign that specifically carries for the SS order is used to indicate terminal equipment, and the partial compensation for the time value of then determining is-1; If the sign that carries in the SS order is used to indicate middle terminal equipment and delays the sending time slots signal, the partial compensation for the time value of then determining is 1; If the sign that carries in the SS order is used to indicate the time that terminal equipment does not change the sending time slots signal, the partial compensation for the time value of then determining is 0.
11. device as claimed in claim 10 is characterized in that, described partial compensation for the time generation module, and concrete at least one partial compensation for the time value that is used for determining is stored in the array of distributing to described terminal equipment;
Described SS order generation module, concrete being used for determines to be at least one partial compensation for the time value of described terminal equipment storage from described array.
12. device as claimed in claim 11 is characterized in that, described partial compensation for the time generation module, and concrete being used for is stored in the array that array length is N with the partial compensation for the time value;
Described array length N be rule of thumb be worth definite, or determine to receive the subframe numbers SFN_start of terminal equipment sending time slots signal, and determine according to the time slot signal that receives, subframe numbers SFN_end when producing and sending the SS order is set as array length N with the value of SFN_end-SFN_start+1.
13. device as claimed in claim 8 is characterized in that, described device also comprises:
Judge module is used for the channel type that the channel of described time slot signal is transmitted in judgement;
The DPCH module is used for judging whether DPCH is in the stage of mourning in silence when judged result is DPCH, if be in the stage of mourning in silence, then trigger SS order generation module the sign that SS orders is set to 0; If not be in the stage of mourning in silence, then trigger SS order generation module and produce the SS order;
The HSDPA module is used for judging whether HSSICH is in the stage of mourning in silence when judged result is HSSICH, if be in the stage of mourning in silence, trigger SS order generation module the sign that SS orders is set to 0; If not be in the stage of mourning in silence, judge whether the time interval that described terminal equipment was scheduled apart from the last time surpass threshold value, if surpass threshold value, then trigger SS order generation module and produce the SS order; If surpass threshold value, triggering SS order generation module orders the SS of the following special physical channel ADPCH of this HSSICH as the SS order that produces.
14. a base station is characterized in that, comprises uplink synchronous control device as claimed in claim 8.
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| WO2021109447A1 (en) * | 2020-05-07 | 2021-06-10 | Zte Corporation | System and method for uplink compensation gap |
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