CN101388722B - A method for uplink synchronization control, base station and user equipment - Google Patents
A method for uplink synchronization control, base station and user equipment Download PDFInfo
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Abstract
本发明公开了一种上行同步控制方法、基站和用户设备。其中，方法包括：对同一个用户设备的不同上行信道，根据设定的选取规则从中选取一个基准上行信道，将所述基准上行信道的定时提前量作为各上行信道的统一定时提前量，根据所述统一定时提前量对各上行信道进行上行同步控制。本发明所公开的技术方案，提高了用户设备各上行信道的同步性能，进而提高了数据吞吐量。
The invention discloses an uplink synchronization control method, a base station and user equipment. Wherein, the method includes: for different uplink channels of the same user equipment, select a reference uplink channel according to a set selection rule, and use the timing advance of the reference uplink channel as the unified timing advance of each uplink channel, according to the selected Uplink synchronization control is performed on each uplink channel according to the unified timing advance. The technical solution disclosed by the invention improves the synchronization performance of each uplink channel of the user equipment, and further improves the data throughput.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of ascending synchronous control method, base station and subscriber equipment (UE).
Background technology
In the mobile communication technology field, two or more up channel might appear in sub-frame of uplink or time slot simultaneously.Take TD-SCDMA (TD SDMA) system as example, these up channels can comprise: continuous or discrete up DPCH (DPCH), HS-SICH (high speed HS-DSCH shares information channel), scheduling and non-scheduled E-PUCH (E-DCH physical uplink channel) etc.
In order to realize the synchronous of each up channel, UE need to send uplink synchronous code and carry out uplink synchronous for Node B (base station) in ascending time slot.Wherein, the Timing Advance (TA) that sends uplink synchronous code calculated according to the time difference of the timing of the timing of Node B and UE.In addition, because UE generally is in the motion attitude, so Node B also needs according to the situation of UE, the Timing Advance that UE sends uplink synchronous code to be adjusted, and realizes that uplink synchronous controls.
At present, the uplink synchronous of different up channels being controlled is the method for taking each channel independently to control.For example, in the TD-SCDMA system, the uplink synchronous of up DPCH is controlled simultaneous bias (SS) order of using descending DPCH or PLCCH (public physic channel) to carry.During specific implementation, the time of NodeB continuous measurement UE, and the necessary SS order of transmission in each subframe, UE makes up the SS order in front M the corresponding control slot of subframe that receives, when the SS order of combination is judged as ' downward ', the emission of the controlled ascending time slot of UE timing will postpone k/8 chip period; When order is judged as ' rise ', the emission of the controlled ascending time slot of UE regularly will shift to an earlier date k/8 chip period; When order is judged as ' uncomfortable ', do not change timing.Wherein, k is the synchronous step-length of adjusting, and the value of k is configured by high level.After the synchronous foundation of initial uplink, Node B and UE begin to enter closed-loop uplink Synchronization Control program, and this process is connecting execution continuously under the DPCH pattern.
The synchronous Timing Advance of the initial uplink of HS-SICH is taken from the up DPCH that follows.UE will adjust by the SS order of HS-SCCH (High-Speed Shared Control Channel) transmission the synchronization timing of HS-SICH afterwards.In some cases, if the HS-SCCH Transmission of one or more subframe, when making UE can't receive the SS order, UE can adjust the synchronization timing of HS-SICH according to the SS order on the descending DPCH that follows, until HS-SCCH is received again.
The uplink synchronous control procedure of E-PUCH and the Synchronization Control process of up DPCH are similar.Wherein, the E-PUCH of scheduling uses the SS order of carrying on E-AGCH (E-DCH absolute grant channel) synchronously to adjust; Non-scheduled E-PUCH uses the SS order of carrying on E-HICH (E-DCH mixed automatic re-transmission indicating channel) synchronously to adjust.In addition, if configured up DPCH, the synchronization timing of E-PUCH can directly be set to the synchronization timing of DPCH.If configured non-scheduled transmission, the synchronization timing of scheduling E-PUCH can directly be set to the synchronization timing of non-scheduled E-PUCH.
Can find out by said process, will produce a plurality of Timing Advances when in same subframe or time slot, multiple up channel coexists, and the possible value of these a plurality of Timing Advances is different, so, the burst that corresponding different up channels send on different code channels will not line up in time, and this problem of situation that especially coexists in same time slot for multiple up channel is more outstanding, makes the orthogonality between code channel reduce, produce each other and disturb, affect the quality of reception.
Summary of the invention
In view of this, provide a kind of ascending synchronous control method on the one hand in the present invention, a kind of base station and UE are provided on the other hand, to improve receptivity.
Ascending synchronous control method provided by the present invention comprises:
Choose a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of same user equipment (UE);
With the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE;
According to described unified Timing Advance, current each up channel to be sent of this UE being carried out uplink synchronous controls.
Preferably, the different up channels of the current configuration of described same UE comprise: the continuous uplink special physical channel DPCH in TD SDMA TD-SCDMA system, discrete up DPCH, high speed HS-DSCH share any two kinds or multiple arbitrarily in the E-DCH physical uplink channel E-PUCH of information channel HS-SICH, scheduling and non-scheduled E-PUCH.
Preferably, the selection rule of described setting comprises: when the different up channels of the current configuration of described same UE comprise continuous up DPCH, choose described continuous up DPCH as the timing base up channel.
Preferably, the selection rule of described setting further comprises: when not comprising continuous up DPCH in the different up channels of the current configuration of described same UE, choose the timing base up channel from other up channel.
Preferably, the described timing base up channel of choosing from other up channel is: when the different up channels of the current configuration of described same UE comprise discontinuous up DPCH, choose described discontinuous up DPCH as the timing base up channel.
Preferably, describedly according to unified Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control and comprise: UE adjusts the unified Timing Advance of current each up channel to be sent according to the simultaneous bias SS order of carrying on descending DPCH or public physic channel PLCCH, and ignores the SS order of carrying on other down channel except described descending DPCH or PLCCH.
Preferably, describedly according to unified Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control and further comprise: the SS command set that base station node B will be carried on other down channel except described descending DPCH or PLCCH is invalid.
Perhaps, the described timing base up channel of choosing from other up channel is: when the different up channels of the current configuration of described same UE comprise discontinuous up DPCH and non-scheduled E-PUCH, send the less up channel in interval as the timing base up channel in choosing both.
Preferably, describedly according to unified Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control and comprise: the SS order of carrying on the UE down channel corresponding according to selected up channel is adjusted the unified Timing Advance of current each up channel to be sent, and ignores the SS order of carrying on other down channel except down channel corresponding to described selected up channel.
Preferably, describedly according to unified Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control and further comprise: the SS command set that Node B will be carried on other down channel except down channel corresponding to described selected up channel is invalid.
Perhaps, the described timing base up channel of choosing from other up channel is: choice of dynamical the last time is completed the up channel of up transmission as current timing base up channel from other up channel.
Preferably, describedly according to unified Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control and comprise: the simultaneous bias SS order of carrying on the down channel that UE received according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.
Preferably, the simultaneous bias SS order of carrying on the down channel that described UE received according to the last time further comprises before the unified Timing Advance of current each up channel to be sent is adjusted:
Node B calculates new Timing Advance, according to the adjustment step-length number that the Timing Advance needs are adjusted, determines the SS command number M that needs;
When described SS command number M counts N less than UE for the down channel of the up channel transmission SS order of corresponding current configuration, Node B chooses M down channel and successively sends a SS order from a described N down channel, and is invalid with the SS command set in other N-M down channel; Perhaps Node B chooses a down channel and sends the SS order from a described N down channel, and is invalid with the SS command set in other N-1 down channel.
Preferably, described new Timing Advance is: the Timing Advance that calculates according to any one up channel in a plurality of up channels that receive in current subframe;
Be perhaps: the weighted average of the Timing Advance that calculates according to each up channel that receives in current subframe;
Be perhaps: according to a Timing Advance that up channel calculates that receives in current subframe.
Base station provided by the present invention comprises:
The benchmark determining unit, be used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of same UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE;
Synchronous control unit is used for according to described unified Timing Advance, current each up channel to be sent of this UE being carried out uplink synchronous and controls.
Preferably, described benchmark determining unit comprises the first selection of datum subelement, is used for choosing described continuous up DPCH as the timing base up channel when the different up channels of the current configuration of same UE comprise continuous up DPCH;
Described synchronous control unit comprises the first Synchronization Control subelement, be used for calculating new Timing Advance according to described continuous up DPCH, and obtaining being carried at SS order on descending DPCH or PLCCH according to described new Timing Advance, the SS command set on will other down channel except described descending DPCH or PLCCH is invalid.
Preferably, described benchmark determining unit further comprises the second selection of datum subelement, when comprising discontinuous up DPCH for the different up channels in the current configuration of same UE do not comprise continuous up DPCH, choose described discontinuous up DPCH as the timing base up channel;
Described synchronous control unit further comprises the second Synchronization Control subelement, be used for calculating new Timing Advance according to described discontinuous up DPCH, and obtaining being carried at SS order on descending DPCH or PLCCH according to described new Timing Advance, the SS command set on will other down channel except described descending DPCH or PLCCH is invalid.
Perhaps, described benchmark determining unit further comprises the 3rd selection of datum subelement, be used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH and non-scheduled E-PUCH, send the less up channel in interval as the timing base up channel in choosing both;
Described synchronous control unit further comprises the 3rd Synchronization Control subelement, be used for calculating new Timing Advance according to selected up channel, and obtain being carried at SS order on the down channel of corresponding selected up channel according to described new Timing Advance, be invalid with the SS command set on other down channel except the down channel of the selected up channel of described correspondence.
Perhaps, described benchmark determining unit further comprises the 4th selection of datum subelement, be used for when the different up channels of the current configuration of same UE do not comprise continuous up DPCH, choice of dynamical the last time is completed the up channel of up transmission as current timing base up channel from other up channel;
Described synchronous control unit further comprises the 4th Synchronization Control subelement, any one up channel in a plurality of up channels that are used for receiving according to current subframe calculates new Timing Advance, or after calculating respectively a Timing Advance according to each up channel that receives in current subframe, the weighted average of each Timing Advance as new Timing Advance, or is calculated new Timing Advance according to a up channel that receives in current subframe; According to the adjustment step-length number that the Timing Advance needs are adjusted, determine the SS command number M that needs; When described SS command number M counts N less than UE for the down channel of the up channel transmission SS order of corresponding current configuration, Node B chooses M down channel and successively sends a SS order from a described N down channel, and be invalid with the SS command set in other N-M down channel, perhaps Node B chooses a down channel and sends the SS order from a described N down channel, and is invalid with the SS command set in other N-1 down channel.
UE provided by the present invention comprises:
The benchmark determination module, be used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of self UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of current configuration;
Synchronization control module is used for according to described unified Timing Advance, current each up channel to be sent being carried out uplink synchronous and controls.
Preferably, described benchmark determination module comprises the first selection of datum submodule, is used for choosing described continuous up DPCH as the timing base up channel when the different up channels of the current configuration of self UE comprise continuous up DPCH;
Described synchronization control module comprises the first Synchronization Control submodule, is used for according to the simultaneous bias SS order of carrying on descending DPCH or public physic channel PLCCH, the unified Timing Advance of current each up channel to be sent being adjusted.
Perhaps, described benchmark determination module further comprises the second selection of datum submodule, when comprising discontinuous up DPCH for the different up channels in the current configuration of self UE do not comprise continuous up DPCH, choose described discontinuous up DPCH as the timing base up channel.
Perhaps, described benchmark determination module further comprises the 3rd selection of datum submodule, be used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH and non-scheduled E-PUCH, send the less up channel in interval as the timing base up channel in choosing both;
Described synchronization control module comprises the 3rd Synchronization Control submodule, is used for the SS order of carrying on the down channel corresponding according to selected up channel the unified Timing Advance of current each up channel to be sent is adjusted.
Perhaps, described benchmark determination module further comprises the 4th selection of datum submodule, be used for when the different up channels of the current configuration of self UE do not comprise continuous up DPCH, choice of dynamical the last time is completed the up channel of up transmission as current timing base up channel from other up channel;
Described synchronization control module comprises the 4th Synchronization Control submodule, and the simultaneous bias SS order of carrying on the down channel that is used for receiving according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.
Can find out from such scheme, safeguard a unified Timing Advance by the different up channels to same UE in the present invention, the up transmission of each up channel is as the criterion with this Timing Advance, thereby make when having multiple up channel in a subframe or time slot, the burst that corresponding different up channels send on different code channels can be alignd in time, strengthen the orthogonality between code channel, improved receptivity.
During specific implementation, for the TD-SCDMA system, be a kind of continuous control due to the Synchronization Control of continuous up DPCH when the closed-loop power control, therefore during the Timing Advance take the Timing Advance of this up DPCH as each up channel, the more simple and reliable property of Synchronization Control process is higher.
Further, when network does not configure continuous up DPCH to UE, by the Timing Advance of up channel that rational rule chooses other being set as the Timing Advance of each up channel, according to this Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control, improved the receptivity of system.
Description of drawings
Fig. 1 is the exemplary process diagram of ascending synchronous control method in the embodiment of the present invention;
The schematic diagram that Fig. 2 a to Fig. 2 c is the example one enumerated in the embodiment of the present invention channel sends to the example three;
Fig. 3 is the exemplary block diagram of base station in the embodiment of the present invention;
Fig. 4 a to Fig. 4 c is several internal structure schematic diagrames of base station in the TD-SCDMA system in the embodiment of the present invention;
Fig. 5 is the exemplary block diagram of UE in the embodiment of the present invention;
Fig. 6 a to Fig. 6 c is several internal structure schematic diagrames of UE in the TD-SCDMA system in the embodiment of the present invention.
Embodiment
In the embodiment of the present invention, in order to improve receptivity, strengthen the orthogonality between code channel, can safeguard a unified Timing Advance to the different up channels of same UE, the up transmission of each up channel is as the criterion with this Timing Advance.
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
Fig. 1 is the exemplary process diagram of ascending synchronous control method in the embodiment of the present invention.As shown in Figure 1, this flow process comprises the steps:
Wherein, according to different network systems and actual needs, the selection rule that sets may be different.All be described as an example of the TD-SCDMA system example in the embodiment of the present invention.In the TD-SCDMA system, the different up channels of the current configuration of same UE can comprise: in continuous up DPCH, discrete up DPCH, HS-SICH, the E-PUCH of scheduling and non-scheduled E-PUCH etc. any two kinds or multiple arbitrarily.
Wherein, be a kind of continuous control due to the Synchronization Control of continuous up DPCH when the closed-loop power control, if therefore during the Timing Advance take the Timing Advance of this up DPCH as each up channel, the more simple and reliable property of Synchronization Control process is higher.Given this, selection rule in the present embodiment can comprise: when the different up channels of the current configuration of same UE comprise continuous up DPCH (being that network is that this UE has configured continuous up DPCH), can choose described continuous up DPCH as the timing base up channel.
In addition, if network does not comprise continuous up DPCH not to the continuous up DPCH of current UE configuration in the different up channels of the i.e. current configuration of UE, can choose a timing base up channel this moment from other up channel.Concrete choosing method can comprise following two class situations:
The first kind: choose fixing timing base up channel.Can comprise at least following dual mode in such.
Mode one: when the different up channels of the current configuration of UE comprise discontinuous up DPCH, can choose this discontinuous up DPCH as the timing base up channel, namely as long as discontinuous up DPCH exists, other all channels comprise that the Timing Advance of non-scheduled E-PUCH, scheduling E-PUCH and HS-SICH all takes from the Timing Advance of discontinuous up DPCH.
Mode two: when the different up channels of the current configuration of UE comprise discontinuous up DPCH and non-scheduled E-PUCH, send the less up channel in interval as the timing base up channel in choosing both.At this moment, the Timing Advance of the E-PUCH of another one channel and scheduling, HS-SICH is all got the Timing Advance of selected up channel.
Equations of The Second Kind: choose indefinite timing base up channel.
When network did not configure continuous up DPCH to UE, other channels comprised that the E-PUCH of discrete up DPCH, HS-SICH, scheduling and non-scheduled E-PUCH are not continuous in time.Each up channel unification can be carried out Synchronization Control in the present embodiment, can make synchronously mutually using of each up channel like this, and take full advantage of the Synchronization Control instruction, thereby the synchronization accuracy of raising UE improves the error rate of single UE.Namely when there is no continuous up DPCH, do not establish definite timing reference channel between discrete DPCH, HS-SICH and E-PUCH, the Timing Advance that on same subframe or same time slot, the Timing Advance of the uplink synchronous of each channel is completed the up channel of up transmission according to the last time is determined.Namely choose dynamically the last time and complete the up channel of up transmission as current timing base up channel.
Below by three examples, the situation in such is described in detail.
Example one: as shown in Fig. 2 a, Fig. 2 a is that the channel in example one sends schematic diagram, and the little lattice of each in figure represent a subframe.Wherein, the up-downgoing channel is the interval one by one, and namely in same subframe, existing up channel has again down channel.In Fig. 2 a, owing to having sent simultaneously a plurality of up channels in first subframe, therefore for second subframe, can choose some up channels as current timing base up channel from these up channels, with the Timing Advance of this up channel unified lead as current each channel.Perhaps, also can be with the weighted average of the Timing Advance of these up channels unified lead as current each channel.
Example two: as shown in Fig. 2 b, Fig. 2 b is that the channel in example two sends schematic diagram, and the little lattice of each in figure represent a subframe.Wherein, the sub-frame of uplink number is greater than the descending sub frame number.In Fig. 2 b, owing to only having sent E-PUCH in the 3rd subframe, therefore for the 4th subframe, can be with this E-PUCH as current timing base up channel, with the Timing Advance of this E-PUCH unified lead as current each channel.
Example three: as shown in Fig. 2 c, Fig. 2 c is that the channel in example three sends schematic diagram, and the little lattice of each in figure represent a subframe.Wherein, the descending sub frame number is greater than the sub-frame of uplink number.In Fig. 2 c, owing to only having sent E-PUCH in the 5th subframe, therefore for the 6th subframe, can be with this E-PUCH as current timing base up channel, with the Timing Advance of this E-PUCH unified lead as current each channel.
Step 102 is carried out uplink synchronous according to determined unified Timing Advance to current each up channel to be sent of this UE and is controlled.
During specific implementation, for with the Timing Advance of continuous up DPCH or the discrete DPCH situation as the unified fixed pattern lead of each channel, Node B can be continuous according to this up DPCH or discrete DPCH calculate new Timing Advance, and obtain being carried at SS order on descending DPCH or PLCCH according to the new Timing Advance that calculates.Further, Node B can be invalid (as being set to Do Nothing) with the SS command set on other down channel except descending DPCH or PLCCH.
At this moment, UE can adjust the unified Timing Advance of current each up channel to be sent according to the SS order of carrying on descending DPCH or PLCCH, and ignores the SS order of carrying on other down channel except descending DPCH or PLCCH.When if Node B is invalid with the SS command set on other down channel except descending DPCH or PLCCH, UE also can not ignore the SS order of carrying on other down channel, but therefore also can make the adjustment of Timing Advance inoperative because these SS command sets are invalid this moment.
For with the Timing Advance of the non-scheduled E-PUCH situation as the unified fixed pattern lead of each channel, Node B can be non-scheduled according to this E-PUCH calculate new Timing Advance, and obtain being carried at SS order on HS-SCCH or descending DPCH according to the new Timing Advance that calculates.Further, Node B can be invalid (as being set to Do Nothing) with the SS command set on other down channel except HS-SCCH or descending DPCH.
At this moment, UE can adjust the unified Timing Advance of current each up channel to be sent according to the SS order on HS-SCCH or descending DPCH, and ignores the SS order of carrying on other down channel except HS-SCCH or descending DPCH.When if the SS command set of Node B on will other down channel except HS-SCCH or descending DPCH is invalid, UE also can not ignore the SS order of carrying on other down channel, but therefore also can make the adjustment of Timing Advance inoperative because these SS command sets are invalid this moment.
For the Timing Advance of the up channel of completing up transmission with the last time situation as the unified fixed pattern lead of each channel, Node B can calculate new Timing Advance according to any one up channel in a plurality of up channels that receive in current subframe, or after calculating respectively a Timing Advance according to each up channel that receives in current subframe, the weighted average of each Timing Advance as new Timing Advance, or is calculated new Timing Advance according to a up channel that receives in current subframe.Afterwards, adjustment step-length number according to the adjustment of Timing Advance needs, definite SS command number M that needs, when this SS command number M counts N less than UE for the down channel of the up channel transmission SS order of corresponding current configuration, Node B can choose M down channel and successively send a SS order from a described N down channel, can be invalid with the SS command set in other N-M down channel further.At this moment, larger adjustment step-length can be arranged, make convergence rate very fast, just the processing meeting of Node B is more.Perhaps when this SS command number M counts N less than UE for the down channel of the up channel transmission SS order of corresponding current configuration, NodeB also can choose a down channel and send the SS order from a described N down channel, and can be further invalid with the SS command set in other N-1 down channel.At this moment, the processing of Node B is relatively simple, is that each adjustment amount is limited, makes convergence rate slower.
The simultaneous bias SS order of carrying on the down channel that at this moment, UE can receive according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.For example, for Fig. 2 b in example two, the E-PUCH that sends on the E-PUCH that sends on second subframe and the 3rd subframe, all carry out Synchronization Control according to the SS on the descending DPCH in first subframe, i.e. the Timing Advance of up transmission is Timing Advance corresponding to first subframe+SS adjustment amount.For Fig. 2 c in example three, if the SS on the SCCH/AGCH/HICH that the AGCH that NodeB sends second subframe and the 3rd subframe send all is set to Do Nothing, the E-PUCH that sends on the E-PUCH that sends on the 4th subframe and the 5th subframe, all carry out Synchronization Control according to the SS on the descending DPCH in first subframe, i.e. the Timing Advance of up transmission is Timing Advance corresponding to first subframe+SS adjustment amount.
Above ascending synchronous control method in the embodiment of the present invention is described in detail, the below is described in detail the base station in the embodiment of the present invention and UE again.
Fig. 3 is the exemplary block diagram of base station in the embodiment of the present invention.As shown in Figure 3, this base station comprises: benchmark determining unit and synchronous control unit.
Wherein, the benchmark determining unit is used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of same UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE.
Synchronous control unit is used for according to described unified Timing Advance, current each up channel to be sent of this UE being carried out uplink synchronous and controls.
During specific implementation, according to different network systems and actual needs, the benchmark determining unit in the base station and synchronous control unit can have multiple specific implementation form.
Take the TD-SCDMA system as example, Fig. 4 a to Fig. 4 c is several internal structure schematic diagrames of base station in the TD-SCDMA system in the embodiment of the present invention.As shown in the part of the solid line in Fig. 4 a to Fig. 4 c, the benchmark determining unit can comprise the first selection of datum subelement, and synchronous control unit can comprise the first Synchronization Control subelement.
Wherein, the first selection of datum subelement is used for choosing described continuous up DPCH as the timing base up channel when the different up channels of the current configuration of same UE comprise continuous up DPCH.
The first Synchronization Control subelement is used for calculating new Timing Advance according to described continuous up DPCH, and obtaining being carried at SS order on descending DPCH or PLCCH according to described new Timing Advance, the SS command set on will other down channel except described descending DPCH or PLCCH is invalid.
Further, as shown in the dotted portion in Fig. 4 a, the benchmark determining unit can further comprise the second selection of datum subelement, and synchronous control unit can further comprise the second Synchronization Control subelement.
Wherein, when the second selection of datum subelement comprises discontinuous up DPCH for the different up channels in the current configuration of same UE do not comprise continuous up DPCH, choose described discontinuous up DPCH as the timing base up channel.
The second Synchronization Control subelement is used for calculating new Timing Advance according to described discontinuous up DPCH, and obtaining being carried at SS order on descending DPCH or PLCCH according to described new Timing Advance, the SS command set on will other down channel except described descending DPCH or PLCCH is invalid.
Perhaps, as shown in the dotted portion in Fig. 4 b, the benchmark determining unit can further comprise the 3rd selection of datum subelement, and synchronous control unit can further comprise the 3rd Synchronization Control subelement.
Wherein, the 3rd selection of datum subelement, be used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH and non-scheduled E-PUCH, send the less up channel in interval as the timing base up channel in choosing both.
The 3rd Synchronization Control subelement is used for calculating new Timing Advance according to selected up channel, and obtain being carried at SS order on the down channel of corresponding selected up channel according to described new Timing Advance, be invalid with the SS command set on other down channel except the down channel of the selected up channel of described correspondence.
Or as shown in the dotted portion in Fig. 4 c, the benchmark determining unit can further comprise the 4th selection of datum subelement, and synchronous control unit can further comprise the 4th Synchronization Control subelement.
Wherein, the 4th selection of datum subelement is used for when the different up channels of the current configuration of same UE do not comprise continuous up DPCH, and choice of dynamical the last time is completed the up channel of up transmission as current timing base up channel from other up channel.
Any one up channel in a plurality of up channels that the 4th Synchronization Control subelement is used for receiving according to current subframe calculates new Timing Advance, or after calculating respectively a Timing Advance according to each up channel that receives in current subframe, the weighted average of each Timing Advance as new Timing Advance, or is calculated new Timing Advance according to a up channel that receives in current subframe; According to the adjustment step-length number that the Timing Advance needs are adjusted, determine the SS command number M that needs; When described SS command number M counts N less than UE for the down channel of the up channel transmission SS order of corresponding current configuration, Node B chooses M down channel and successively sends a SS order from a described N down channel, and be invalid with the SS command set in other N-M down channel, perhaps Node B chooses a down channel and sends the SS order from a described N down channel, and is invalid with the SS command set in other N-1 down channel.
Fig. 5 is the exemplary block diagram of UE in the embodiment of the present invention.As shown in Figure 5, this UE comprises: benchmark determination module and synchronization control module.
Wherein, the benchmark determination module is used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of self UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of current configuration.
Synchronization control module is used for according to described unified Timing Advance, current each up channel to be sent being carried out uplink synchronous and controls.
During specific implementation, according to different network systems and actual needs, the benchmark determining unit in the base station and synchronous control unit can have multiple specific implementation form.
Take the TD-SCDMA system as example, Fig. 6 a to Fig. 6 c is several internal structure schematic diagrames of UE in the TD-SCDMA system in the embodiment of the present invention.As shown in the part of the solid line in Fig. 6 a to Fig. 6 c, the benchmark determination module can comprise the first selection of datum submodule, and synchronization control module can comprise the first Synchronization Control submodule.
Wherein, the first selection of datum submodule is used for choosing described continuous up DPCH as the timing base up channel when the different up channels of the current configuration of self UE comprise continuous up DPCH.
The first Synchronization Control submodule, be used for according to the simultaneous bias SS order of carrying on descending DPCH or public physic channel PLCCH, the unified Timing Advance of current each up channel to be sent being adjusted, and ignore the SS order of carrying on other down channel except described descending DPCH or PLCCH.
Further, as shown in the dotted portion in Fig. 6 a, the benchmark determination module can further comprise the second selection of datum submodule.
Wherein, when the second selection of datum submodule comprises discontinuous up DPCH for the different up channels in the current configuration of self UE do not comprise continuous up DPCH, choose described discontinuous up DPCH as the timing base up channel.
Perhaps, as shown in the dotted portion in Fig. 6 b, the benchmark determination module can further comprise the 3rd selection of datum submodule, and synchronization control module can further comprise the 3rd Synchronization Control submodule.
Wherein, the 3rd selection of datum submodule is used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH and non-scheduled E-PUCH, sends the less up channel in interval as the timing base up channel in choosing both.
The 3rd Synchronization Control submodule is used for the SS order of carrying on the down channel corresponding according to selected up channel to be adjusted the unified Timing Advance of current each up channel to be sent, and ignores the SS order of carrying on other down channel except down channel corresponding to described selected up channel.
Or as shown in the dotted portion in Fig. 6 c, the benchmark determination module can further comprise the 4th selection of datum submodule, and synchronization control module can further comprise the 4th Synchronization Control submodule.
Wherein, the 4th selection of datum submodule is used for when the different up channels of the current configuration of self UE do not comprise continuous up DPCH, and choice of dynamical the last time is completed the up channel of up transmission as current timing base up channel from other up channel.
The simultaneous bias SS order of carrying on the down channel that the 4th Synchronization Control submodule is used for receiving according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.
Technical scheme in the embodiment of the present invention compared with prior art, can overcome the shortcoming of UE to a plurality of Timing Advances of different channels maintenance in prior art, the Timing Advance of the different channels of UE on same subframe or same time slot is identical, improve the net synchronization capability of UE and even whole system, and then improved throughput.When not having continuous up DPCH, synchronously mutually using of each channel improved the Synchronization Control frequency, thereby improved net synchronization capability.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above is only preferred embodiment of the present invention; be not for limiting protection scope of the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (13)
1. an ascending synchronous control method, is characterized in that, the method comprises:
Choose a timing base up channel from the different up channels of the current configuration of same user equipment (UE); Wherein, when the different up channels of the current configuration of described same UE comprise continuous up DPCH, choose described continuous up DPCH as the timing base up channel; When not comprising continuous up DPCH in the different up channels of the current configuration of described same UE and comprising discontinuous up DPCH and during non-scheduled E-PUCH, choose in discontinuous up DPCH and non-scheduled E-PUCH and send the less up channel in interval as the timing base up channel;
With the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE; According to described unified Timing Advance, current each up channel to be sent of this UE being carried out uplink synchronous controls.
2. the method for claim 1, it is characterized in that, the different up channels of the current configuration of described same UE comprise: the continuous uplink special physical channel DPCH in TD SDMA TD-SCDMA system, discrete up DPCH, high speed HS-DSCH share any two kinds or multiple arbitrarily in the E-DCH physical uplink channel E-PUCH of information channel HS-SICH, scheduling and non-scheduled E-PUCH.
3. method as claimed in claim 2, it is characterized in that, describedly according to unified Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control and comprise: the SS order of carrying on the UE down channel corresponding according to selected up channel is adjusted the unified Timing Advance of current each up channel to be sent, and ignores the SS order of carrying on other down channel except down channel corresponding to described selected up channel.
4. method as claimed in claim 3, it is characterized in that, describedly according to unified Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control and further comprise: the SS command set that Node B will be carried on other down channel except down channel corresponding to described selected up channel is invalid.
5. an ascending synchronous control method, is characterized in that, the method comprises:
Choose a timing base up channel from the different up channels of the current configuration of same user equipment (UE); Wherein, when the different up channels of the current configuration of described same UE comprise continuous up DPCH, choose described continuous up DPCH as the timing base up channel; When not comprising continuous up DPCH in the different up channels of the current configuration of described same UE, choice of dynamical the last time is completed the up channel of up transmission as current timing base up channel from other up channel;
With the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE; According to described unified Timing Advance, current each up channel to be sent of this UE being carried out uplink synchronous controls.
6. method as claimed in claim 5, it is characterized in that, the different up channels of the current configuration of described same UE comprise: the continuous uplink special physical channel DPCH in TD SDMA TD-SCDMA system, discrete up DPCH, high speed HS-DSCH share any two kinds or multiple arbitrarily in the E-DCH physical uplink channel E-PUCH of information channel HS-SICH, scheduling and non-scheduled E-PUCH.
7. method as claimed in claim 6, it is characterized in that, describedly according to unified Timing Advance, current each up channel to be sent of this UE is carried out uplink synchronous and control and comprise: the simultaneous bias SS order of carrying on the down channel that UE received according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.
8. method as claimed in claim 7, is characterized in that, the simultaneous bias SS order of carrying on the down channel that described UE received according to the last time further comprises before the unified Timing Advance of current each up channel to be sent is adjusted:
Node B calculates new Timing Advance, according to the adjustment step-length number that the Timing Advance needs are adjusted, determines the SS command number M that needs;
When described SS command number M counts N less than UE for the down channel of the up channel transmission SS order of corresponding current configuration, Node B chooses M down channel and successively sends a SS order from a described N down channel, and is invalid with the SS command set in other N-M down channel; Perhaps Node B chooses a down channel and sends the SS order from a described N down channel, and is invalid with the SS command set in other N-1 down channel.
9. method as claimed in claim 8, is characterized in that, described new Timing Advance is: the Timing Advance that calculates according to any one up channel in a plurality of up channels that receive in current subframe;
Be perhaps: the weighted average of the Timing Advance that calculates according to each up channel that receives in current subframe;
Be perhaps: according to a Timing Advance that up channel calculates that receives in current subframe.
10. a base station, is characterized in that, this base station comprises:
The benchmark determining unit, be used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of same UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE;
Synchronous control unit is used for according to described unified Timing Advance, current each up channel to be sent of this UE being carried out uplink synchronous and controls;
Wherein, described benchmark determining unit comprises the first selection of datum subelement and the 3rd selection of datum subelement; Described synchronous control unit comprises the first Synchronization Control subelement and the 3rd Synchronization Control subelement;
Described the first selection of datum subelement is used for choosing described continuous up DPCH as the timing base up channel when the different up channels of the current configuration of same UE comprise continuous up DPCH;
Described the first Synchronization Control subelement, be used for calculating new Timing Advance according to described continuous up DPCH, and obtaining being carried at SS order on descending DPCH or PLCCH according to described new Timing Advance, the SS command set on will other down channel except described descending DPCH or PLCCH is invalid;
Described the 3rd selection of datum subelement, be used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH and non-scheduled E-PUCH, send the less up channel in interval as the timing base up channel in choosing both;
Described the 3rd Synchronization Control subelement, be used for calculating new Timing Advance according to selected up channel, and obtain being carried at SS order on the down channel of corresponding selected up channel according to described new Timing Advance, be invalid with the SS command set on other down channel except the down channel of the selected up channel of described correspondence.
11. base station, it is characterized in that, the benchmark determining unit, be used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of same UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE;
Synchronous control unit is used for according to described unified Timing Advance, current each up channel to be sent of this UE being carried out uplink synchronous and controls;
Wherein, described benchmark determining unit comprises the first selection of datum subelement and the 4th selection of datum subelement; Described synchronous control unit comprises the first Synchronization Control subelement and the 4th Synchronization Control subelement;
Described the first selection of datum subelement is used for choosing described continuous up DPCH as the timing base up channel when the different up channels of the current configuration of same UE comprise continuous up DPCH;
Described the first Synchronization Control subelement, be used for calculating new Timing Advance according to described continuous up DPCH, and obtaining being carried at SS order on descending DPCH or PLCCH according to described new Timing Advance, the SS command set on will other down channel except described descending DPCH or PLCCH is invalid;
Described the 4th selection of datum subelement, be used for when the different up channels of the current configuration of same UE do not comprise continuous up DPCH, choice of dynamical the last time is completed the up channel of up transmission as current timing base up channel from other up channel;
Described the 4th Synchronization Control subelement, any one up channel in a plurality of up channels that are used for receiving according to current subframe calculates new Timing Advance, or after calculating respectively a Timing Advance according to each up channel that receives in current subframe, the weighted average of each Timing Advance as new Timing Advance, or is calculated new Timing Advance according to a up channel that receives in current subframe; According to the adjustment step-length number that the Timing Advance needs are adjusted, determine the SS command number M that needs; When described SS command number M counts N less than UE for the down channel of the up channel transmission SS order of corresponding current configuration, the base station is chosen M down channel and is successively sent a SS order from a described N down channel, and be invalid with the SS command set in other N-M down channel, perhaps Node B chooses a down channel and sends the SS order from a described N down channel, and is invalid with the SS command set in other N-1 down channel.
12. a user equipment (UE) is characterized in that, this UE comprises:
The benchmark determination module, be used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of self UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of current configuration;
Synchronization control module is used for according to described unified Timing Advance, current each up channel to be sent being carried out uplink synchronous and controls;
Wherein, described benchmark determination module comprises the first selection of datum submodule and the 3rd selection of datum submodule, and described synchronization control module comprises the first Synchronization Control submodule and the 3rd Synchronization Control submodule;
Described the first selection of datum submodule is used for choosing described continuous up DPCH as the timing base up channel when the different up channels of the current configuration of self UE comprise continuous up DPCH;
Described the first Synchronization Control submodule is used for according to the simultaneous bias SS order of carrying on descending DPCH or public physic channel PLCCH, the unified Timing Advance of current each up channel to be sent being adjusted;
Described the 3rd selection of datum submodule, be used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH and non-scheduled E-PUCH, send the less up channel in interval as the timing base up channel in choosing both;
Described the 3rd Synchronization Control submodule is used for the SS order of carrying on the down channel corresponding according to selected up channel the unified Timing Advance of current each up channel to be sent is adjusted.
13. a user equipment (UE) is characterized in that, this UE comprises:
The benchmark determination module, be used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of self UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of current configuration;
Synchronization control module is used for according to described unified Timing Advance, current each up channel to be sent being carried out uplink synchronous and controls;
Wherein, described benchmark determination module comprises the first selection of datum submodule and the 4th selection of datum submodule, and described synchronization control module comprises the first Synchronization Control submodule and the 4th Synchronization Control submodule;
Described the first selection of datum submodule is used for choosing described continuous up DPCH as the timing base up channel when the different up channels of the current configuration of self UE comprise continuous up DPCH;
Described the first Synchronization Control submodule is used for according to the simultaneous bias SS order of carrying on descending DPCH or public physic channel PLCCH, the unified Timing Advance of current each up channel to be sent being adjusted;
Described the 4th selection of datum submodule, be used for when the different up channels of the current configuration of self UE do not comprise continuous up DPCH, choice of dynamical the last time is completed the up channel of up transmission as current timing base up channel from other up channel;
Described the 4th Synchronization Control submodule, the simultaneous bias SS order of carrying on the down channel that is used for receiving according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.
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| CN102318233B (en) * | 2009-04-24 | 2014-01-22 | 华为技术有限公司 | Uplink synchronization method and apparatus |
| CN101888648A (en) * | 2009-05-11 | 2010-11-17 | 大唐移动通信设备有限公司 | Uplink synchronous control method and device |
| CN101990295B (en) * | 2009-08-04 | 2013-03-20 | 鼎桥通信技术有限公司 | Uplink synchronous control method and system and base station |
| CN101646234A (en) * | 2009-09-01 | 2010-02-10 | 中兴通讯股份有限公司 | Obtaining method of timing lead |
| CN103338506B (en) * | 2009-09-15 | 2016-10-05 | 华为技术有限公司 | Uplink synchronization processing method, subscriber equipment and base station |
| WO2011032308A1 (en) | 2009-09-15 | 2011-03-24 | 华为技术有限公司 | Uplink synchronization processing method, user equipment and base station |
| AU2010303984B2 (en) * | 2009-10-09 | 2013-10-17 | Telefonaktiebolaget L M Ericsson (Publ) | Extended cell range |
| CN102014476B (en) | 2009-10-10 | 2013-09-04 | 电信科学技术研究院 | Uplink synchronization method, system and equipment |
| CN102045839B (en) * | 2009-10-16 | 2013-07-03 | 电信科学技术研究院 | Method, system and device for determining position information of user terminal |
| CN102014477B (en) * | 2009-10-30 | 2013-11-06 | 电信科学技术研究院 | Method, apparatus and system for uplink synchronization |
| JP5454123B2 (en) | 2009-12-16 | 2014-03-26 | ソニー株式会社 | Method for handover, terminal device and radio communication system |
| KR101512388B1 (en) | 2010-01-08 | 2015-04-16 | 인터디지탈 패튼 홀딩스, 인크 | Maintaining time alignment with multiple uplink carriers |
| CN102196479B (en) * | 2010-03-10 | 2014-01-08 | 华为技术有限公司 | Timing advance value sharing detection method, user equipment, base station and system |
| EP2367386B1 (en) * | 2010-03-12 | 2020-08-12 | BlackBerry Limited | Timing advance enhancements for cellular communications |
| CN102884848B (en) * | 2010-04-06 | 2016-02-17 | 上海贝尔股份有限公司 | For the method and apparatus of timing advance in the wireless network of carrier aggregation |
| US8798030B2 (en) | 2010-04-07 | 2014-08-05 | Qualcomm Incorporated | Facilitating uplink synchronization in TD-SCDMA multi-carrier systems |
| CN102386957B (en) * | 2010-08-27 | 2014-11-05 | 中兴通讯股份有限公司 | Multiple-antenna combining method for uplink time advance and base station |
| CN102318415B (en) * | 2010-10-21 | 2014-08-20 | 高通股份有限公司 | Facilitating uplink synchronization in TD-SCDMA multi-carrier systems |
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| EP2739099B1 (en) * | 2011-07-29 | 2019-09-25 | NEC Corporation | Wireless station, wireless terminal, and time alignment timer control method in wireless communication system |
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