CN101316126A - HSDPA system power, synchronization control, beam shaping method and base station - Google Patents
HSDPA system power, synchronization control, beam shaping method and base station Download PDFInfo
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Abstract
The invention discloses a method for controlling the power of the HSDPA system, which aims at the HS-SICH and includes the steps of: real-time monitoring the corresponding relationship between the HS-SCCH as well as the HS-SICH and UE, and obtaining a time parameter of the corresponding relationship between the channel and the UE; a first stage, which is the stage from the first HS-SCCH subframe transmitted from the base station to the generation of the power control instruction by utilizing the first HS-SICH subframe fed back by the UE, wherein, the power control instruction can be set to be up or down randomly or alternately; a second stage, which is the stage from the generation of the power control instruction by utilizing the first HS-SICH subframe fed back by the UE to the last HS-SCCH subframe transmitted for the UE, wherein, the power control instruction can be set by utilizing the power control parameters obtained from the calculation of the HS-SICH subframe; the base station transmits the HS-SCCH subframe carrying the power control instruction to the UE. The invention also discloses a power control method aiming at the HS-SCCH, a base station and a down beam shaping proposal.
Description
Technical field
The present invention relates to high speed downlink packet and insert (HSDPA) technical field, relate in particular to a kind of method, beam-forming method and base station equipment of HSDPA system power/Synchronization Control.
Background technology
High speed downlink packet inserts (High Speed Downlink Package Access, HSDPA) be that propose among the 3GPP R5 a kind of provides the high-speed down data transmission technology at the multi-user, be the time-division synchronously-code division multiple access inserts (Time DivisionSynchronous CDMA, enhancing version TD-SCDMA).In the HSDPA technology, used three kinds of shared physical channels to realize the data communication of base station (Node B) and subscriber equipment (UE).These three kinds of physical channels are respectively that downlink high-speed shared control channel (HS-SCCH), high speed uplink are shared information channel (HS-SICH) and High-Speed Physical Downlink Shared Channel (HS-PDSCH).
Wherein, HS-SCCH is the HSDPA down control channel, is a physical channel, and it is used to carry all relevant control informations.That is to say that terminal receives the data of HS-PDSCH and must just can finish under the cooperation of HS-SCCH control information.HS-SCCH is shared by a plurality of HSDPA UE by time division multiplexing, but at the Transmission Time Interval (TTI) of a 5ms, each HS-SCCH only is a relevant Downlink Control Information of UE carrying HS-DSCH.Corresponding with HS-SCCH, HS-SICH is an ascending control channel, also is a physical channel, and it is used to feed back relevant uplink information, and is similar with HS-SCCH, also is to be shared by a plurality of HSDPA UE by time division multiplexing.HS-SCCH and HS-SICH are one to one.RNC determines which HS-SCCH and which HS-SICH pairing, and the configuration information of every couple of HS-SCCH and HS-SICH is sent to NodeB.Each HSDPA UE has a HS-SCCH collection, comprises four HS-SCCH in this HS-SCCH collection at most.RNC sends to UE with the configuration information of the HS-SICH of each HS-SCCH in each UE HS-SCCH collection and this HS-SCCH pairing.In the HSDPA system, sometime, for distributing a pair of HS-SCCH, certain UE transmits related control information mutually with HS-SICH by NodeB.
In TD-SCDMA, signal transmission power and signal Synchronization all are unusual important index.Because TD-SCDMA is an interference limiting system, necessary power control is the interference level of restriction system inside effectively; Uplink synchronous also can be brought very big benefit to HSDPA, because mobile communication system is to be operated in the actual environment of serious interference, multipath transmisstion and Doppler effect, that realizes ideal is difficult to synchronously, but allow the main footpath of each upward signal reach synchronous, benefit to improving systematic function, and can significantly reduce in the sub-district and disturb, increase cell coverage area between each user and improve power system capacity, optimization link budget.
Though there is a cover frequency/Synchronization Control scheme in the TD-SCDMA system, but HSDPA can not continue to use the scheme of TD-SCDMA fully, reason is, power/Synchronization Control of TD-SCDMA is at DPCH (DPCH), each physical channel only belongs to certain UE, in power control or Synchronization Control,, do not need to be concerned about the corresponding relation situation of change of physical channel and UE in case connect; And HS-SCCH among the HSDPA and HS-SICH belong to shared physical channel (DSCH), HS-SCCH and HS-SICH are for a plurality of UE time-sharing multiplexs, for example for certain HS-SCCH, often need between a plurality of UE, switch, and existing TD-SCDMA power/Synchronization Control scheme is not considered power control and Synchronization Control problem when channel switches.
Summary of the invention
The object of the invention provides a kind of method, to realize that the HSDPA system is carried out power/Synchronization Control; Simultaneously, the present invention also provides a kind of base station equipment, is used for the HSDPA system is carried out power and/or Synchronization Control.
For this reason, the embodiment of the invention adopts following technical scheme:
A kind of HSDPA system power control method at HS-SICH, comprising: the base station is monitored HS-SCCH, HS-SICH and UE corresponding relation in real time, obtains the time parameter of channel and UE corresponding relation; From the base station to UE send first HS-SCCH subframe, phase I before generating power control command to the HS-SICH subframe of utilizing UE feedback, at random or be arranged alternately power control command for raising up or downward modulation down; From first HS-SICH subframe of utilizing UE feedback generate power control command, to the second stage that sends last HS-SCCH subframe for UE, utilization is provided with power control command at the power contorl parameters that the HS-SICH subframe calculates; The HS-SCCH subframe that power control command will be carried in the base station sends to UE.
Described method also comprises: judge whether the HS-SICH subframe is empty, if power control command is set adjusts step-length for increasing by one.
Described method also comprises: judge whether empty HS-SICH subframe is last HS-SICH subframe that UE sends, if not when determining next HS-SICH not for sky: the power contorl parameters to storage before carries out initialization; And adopt the mode of described second stage that power control command is set.
A kind of HSDPA system synchronization control method at HS-SICH, comprising: the base station is monitored HS-SCCH, HS-SICH and UE corresponding relation in real time, obtains the time parameter of channel and UE corresponding relation; Send first HS-SCCH subframe, generate the synchronous control command phase I before from the base station to UE to first HS-SICH subframe of utilizing the UE feedback, utilization is provided with synchronous control command at the synchronous control command that up following special physical channel generates; From first HS-SICH subframe of utilizing UE feedback generate synchronous control command, to the second stage that sends last HS-SCCH subframe for UE, utilize Synchronization Control parameter at the generation of HS-SICH subframe, synchronous control command is set; The HS-SCCH subframe that synchronous control command will be carried in the base station sends to UE.
Said method also comprises: judge whether the HS-SICH subframe is empty, if synchronous control command is set for remaining unchanged.
Said method also comprises: judge whether empty HS-SICH subframe is last HS-SICH subframe that UE sends, if not, when determining next HS-SICH: the Synchronization Control parameter of utilizing the Synchronization Control parameter update HS-SICH of up following special physical channel not for sky; And adopt the mode of described second stage that synchronous control command is set.
Described method also comprises: whether judge HS-SICH and up following special physical channel at same time slot, if utilize the synchronous control command of up following special physical channel; Otherwise, synchronous control command is set respectively according to phase I and second stage.
A kind of HSDPA system power control method at HS-SCCH, comprising: the base station is monitored HS-SCCH, HS-SICH and UE corresponding relation in real time, obtains the time parameter of channel and UE corresponding relation; Send first HS-SCCH subframe, phase I before the power control command that obtains first HS-SICH subframe from the base station to UE, adopt the HS-SCCH transmitting power of base station acquiescence; Power control command from obtain first HS-SICH subframe, to the second stage that sends last HS-SCCH subframe for UE, according to the power control command in the HS-SICH subframe of receiving indication, adjust HS-SCCH subframe transmitting power.
Said method also comprises: judge whether the HS-SICH subframe is empty, if the HS-SCCH transmitting power is increased by one adjust step-length.
Described method also comprises: when determining the HS-SCCH transmitting power greater than the HS-SCCH maximum transmission power that presets, adopt maximum transmission power as the HS-SCCH transmitting power.
A kind of beam-forming method, at HS-SCCH, comprise: judge whether up following special physical channel is up discontinuous sending mode: if, utilize on the up following special physical channel special burst pulse to generate weight vector, as HS-SCCH or/and the weight vector of HS-PDSCH; Otherwise, directly utilize the preceding D of up following special physical channel
ULIndividual subframe generates weight vector, as HS-SCCH or/and the weight vector of HS-PDSCH; Described D
ULRepresentative produces the time of delay of weight vector.
A kind of base station is used for the HSDPA system is carried out power control at HS-SICH, comprising: the monitoring record unit, monitor UE and HS-SCCH, HS-SICH corresponding relation in real time, and obtain the time parameter of UE and channel corresponding relation; The uplink power control performance element is known when being in the phase I from described monitoring record unit, and replacing or the uplink power control order is set randomly is up or down; Know when being in second stage from described monitoring record unit, utilize the power contorl parameters that generates at the HS-SICH subframe, the uplink power control order is set.
Above-mentioned base station also comprises: gap frame judging unit: judge whether the HS-SICH subframe is empty, if indicate described uplink power control performance element that power control command is set and adjust step-length for increasing by one.
Above-mentioned base station also comprises: the gap frame processing unit; Described gap frame judging unit determine empty HS-SICH subframe be not last HS-SICH subframe of sending of UE and should the next HS-SICH of sky HS-SICH subframe when empty, indicate described gap frame processing unit that power contorl parameters is carried out initialization, and indicate described uplink power control performance element to adopt the mode of described second stage that power control command is set.
A kind of base station is used for the HSDPA system is carried out Synchronization Control at HS-SICH, comprising: the monitoring record module, monitor UE and HS-SCCH, HS-SICH corresponding relation in real time, and obtain the time parameter of UE and channel corresponding relation; The uplink synchronous Executive Module is provided when being in the phase I from described monitoring record module by the synchronous control command that utilizes up following special physical channel to provide; Know when being in second stage from described monitoring record module, utilize the Synchronization Control parameter that generates at the HS-SICH subframe, the uplink synchronous control command is set.
Above-mentioned base station also comprises: gap frame judge module: judge whether the HS-SICH subframe is empty, if indicate described uplink synchronous Executive Module synchronous control command to be set for remaining unchanged.
Above-mentioned base station also comprises: gap frame processing module; Described gap frame judging unit determine empty HS-SICH subframe be not last HS-SICH subframe of sending of UE and should the next HS-SICH of sky HS-SICH subframe when empty, indicate described gap frame processing module to utilize the Synchronization Control parameter of the Synchronization Control parameter update HS-SICH of up following special physical channel, simultaneously, indicate described uplink synchronous Executive Module to adopt the mode of described second stage that synchronous control command is set.
Above-mentioned base station also comprises: follow judge module: whether be used to judge HS-SICH and up following special physical channel at same time slot, if indicate described uplink synchronous Executive Module to adopt the synchronous control command of described up following special physical channel; Otherwise, indicate described uplink synchronous Executive Module the uplink synchronous control command to be set according to phase I and second stage.
A kind of base station is used for the HSDPA system is carried out power control at HS-SCCH, comprising: the monitoring record unit, monitor UE and HS-SCCH, HS-SICH corresponding relation in real time, and obtain the time parameter of UE and channel corresponding relation; The down-going synchronous performance element is known when being in the phase I from described monitoring record unit, adopts default transmit power emission HS-SCCH information; Know when being in second stage from described monitoring record unit,, adjust the transmitting power of HS-SCCH according to HS-SICH descending power control command.
Above-mentioned base station also comprises: gap frame acknowledgment unit: judge whether the HS-SICH subframe is empty, if indicate described down-going synchronous performance element that the HS-SCCH transmitting power is increased by one and adjust step-length.
Above-mentioned base station also comprises: the maximum power processing unit: when determining the HS-SCCH transmitting power greater than the HS-SCCH maximum transmission power that presets, indicate described down-going synchronous performance element to adopt maximum transmission power as the HS-SCCH transmitting power.
A kind of base station is used for the HSDPA system is carried out wave beam forming at HS-SCCH, comprising: judging unit: be used to judge whether up following special physical channel is up discontinuous sending mode; Weight vector generation unit: when described judging unit determines that up following special physical channel is discontinuous sending mode, the weight vector that the Last special burst pulse of up following special physical channel is generated, as HS-SCCH or/and the weight vector of High-Speed Physical Downlink Shared Channel HS-PDSCH; Otherwise, directly utilize the preceding D of up following special physical channel
ULThe weight vector of individual subframe as HS-SCCH or/and the weight vector of HS-PDSCH; Described D
ULRepresentative produces the time of delay of weight vector.
The technique effect that the scheme that the embodiment of the invention provides is brought is analyzed as follows:
The embodiment of the invention is from obtaining HS-SCCH, HS-SICH is taken angle by which UE and sets out, monitor HS-SCCH in real time by Node B, which UE service HS-SICH is, special concern HS-SCCH, HS-SICH and UE corresponding relation situation of change, to be the HS-SCCH of certain UE service, HS-SICH carries out time slice: phase I and second stage, and for being in the different power/Synchronization Control strategy of channel employing of different phase, take into full account and share physical channel by the characteristics of time-sharing multiplex, assurance control effectively to switch step and stabilization sub stage signal power and synchronism, helps improving signal transmission accuracy.
Description of drawings
Fig. 1 is HS-SCCH, HS-SICH sub-frame allocation schematic diagram;
Fig. 2 is the embodiment of the invention one a uplink power control flow chart;
Fig. 3 is the embodiment of the invention two uplink synchronous control flow charts;
Fig. 4 is the embodiment of the invention one a base station equipment structural representation;
Fig. 5 is the embodiment of the invention two base station equipment structural representations;
Fig. 6 is the embodiment of the invention three base station equipment structural representations;
Fig. 7 is the embodiment of the invention four base station equipment structural representations.
Embodiment
The present invention carries out the time division by real-time judge HS-SCCH/HS-SICH and UE corresponding relation to the channel of distributing to certain UE, carries out power/Synchronization Control in different ways for the channel that is in different time sections.
Power/Synchronization Control of the present invention specifically is meant: uplink power control (ULPC), uplink synchronous control (ULSC) and descending power control (DLPC); Downlink wave beam shaping (Downlinkbeamforming, DLBF) scheme of a kind of HS-SCCH channel and HS-PDSCH channel are provided simultaneously.
At first introduce embodiment one, in the HSDPA system, carry out ULPC at HS-SICH:
State as preceding, HS-SICH is a up shared physical channel, and it can be by a plurality of UE time-sharing multiplexs, and when some UE take some subframes (sub-frame) of this HS-SICH certain period, all the other UE then can not transmit on these HS-SICH subframes.And HS-SCCH and HS-SICH are distributed in pairs by RNC, are carried to UE by its corresponding HS-SCCH according to PC (PowerControl, power control) and SS orders such as (Synchronization Shift, simultaneous bias) that the HS-SICH parameter generates.Suppose that HS-SICH is shared by a plurality of UE: UE1, UE2 ... UEn, each HSDPA user all have one's own up/downward special physical channel (UL/DL DPCH).Existing ULPC algorithm need be set up the relevant parameter that this channel ULPC is preserved in a ULPC memory block (ULPC memory block) for the channel that will carry out uplink power control, and these parameters comprise:
1. the signal interference ratio of this channel received signal (Signal Interference Ratio, recursive average SIR)
2. the recursive average of the received power of this channel
3. calculate the needed relevant recursion mean value of coefficient correlation of this channel path loss (path loss) signal interference ratio, comprising: the parameters such as recursive average of the recursive average of path loss, path loss signal interference ratio
4. (D-1) subframe ULPC orders compensating parameter before this channel, and wherein, D represents that Node B adnation becomes the time delay of ULPC order and the time delay sum of UE side response ULPC order
5. the sir target value and the power control step-size of this channel
Existing ULPC algorithm is when carrying out the channel generation ULPC order of uplink power control, to need two class parameters in each subframe:
(i) based on this channel at the measurement parameter that the received signal of current subframe obtains, comprising: parameters such as the signal interference ratio of current subframe, received power, path loss, path loss signal interference ratio
(ii) this channel ULPC memory block parameter of preserving
With UL DPCH channel is example, and existing ULPC algorithm adopts following steps to generate the ULPC order of each UL DPCH subframe:
I, to first subframe of this channel, the measurement parameter that is obtained by the received signal of this subframe generates the TPC order, and upgrades all parameters of this channel ULPC memory block with the measurement parameter of this subframe.That is: to first subframe, only generate the TPC order of this subframe by the first kind parameter of ULPC algorithm.
II, each subframe later to first subframe, the measurement parameter that is obtained by the received signal of current subframe and the calculation of parameter of this channel ULPC memory block generate the TPC order, and upgrade this channel ULPC memory block parameter.That is: to each subframe since second subframe, its TPC order is determined jointly by two class parameters.
The concrete steps that produce since the TPC order of each subframe of second subframe are as follows:
(II.1) calculate the received power of UE signal on this channel of current subframe, and calculate the recursive average of current subframe received power by the recurrence averaging method;
(II.2) estimate the path loss of UE signal on this channel of current subframe and when frame path loss and the ratio that disturbs when frame: the path loss signal interference ratio;
(II.3) calculate the recursive average of current subframe path loss and the recursive average of path loss signal interference ratio by the recurrence averaging method;
(II.4) coefficient correlation of calculating path loss signal interference ratio;
(II.5) signal interference ratio of UE signal on later this channel of the current subframe integrated detection of calculating;
(II.6) calculate the recursive average of current subframe signal interference ratio by the recurrence averaging method;
(II.7) recursive average, power control step-size and preceding (D-1) the subframe ULPC by the coefficient correlation of path loss signal interference ratio, current subframe signal interference ratio, current subframe signal interference ratio orders compensating parameter, calculating is used to generate the signal interference ratio of this channel TPC order, and generates the TPC order.
The ULPC algorithm of HS-SICH channel is similarly HS-SICH and sets up a ULPC memory block, and the ULPC parameter of HS-SICH is preserved in this memory block.Parameter that preserve this memory block and existing ULPC algorithm are that to carry out the parameter of memory block that the channel of uplink power control sets up preserving identical.But even during HS-SICH is taken by a HSDPA UE, each does not interfere the ULPC parameter memory block of following channel of HS-SICH and this UE, and more new situation is controlled separately.Order from the ULPC that generates HS-SICH below and set forth.
Node B monitors HS-SCCH, HS-SICH and UE corresponding relation in real time, know this period they be which UE service, next period for which UE serves.As shown in Figure 1, for each subframe of HS-SCCH, HS-SICH is assigned to the schematic diagram of UE_i (i UE), each square is represented a subframe among the figure, and by monitoring, Node B can be known relevant each subframe time point of UE_i service for this reason.
Now be described as follows to each subframe according to time point:
First HS-SCCH subframe that SFN_SCCH_first:UE_i takies, just in this subframe, HS-SCCH is the UE_i service;
First HS-SICH subframe that SFN_SICH_first:UE_i takies, just in this subframe, HS-SICH is the UE_i service;
SFN_SCCH_first_1: the number of a HS-SCCH subframe, this subframe carry the HS-SICH ULPC order that SFN_SICH_first work song frame generates;
Last HS-SCCH subframe that SFN_SCCH_last:UE_i takies, just number might be taken by other UE or the free time for the HS-SCCH subframe of (SFN_SCCH_last+1) can not taken by UE_i again;
SFN_SICH_last_1: the number of a HS-SICH subframe, the HS-SICH ULPC order that this subframe generates is carried to UE by " SFN_SCCH_last " number HS-SCCH subframe;
Last HS-SICH subframe that SFN_SICH_last:UE_i takies, just number can not taken by UE_i for the HS-SICH subframe of (SFN_SICH_last+1) again.
More than the relation of these subframes referring to Fig. 1, as seen, (SFN_SCCH_first, SFN_SCCH_last) during this period of time, HS-SCCH is assigned to UE_i, during this period, HS-SCCH is that UE_i carries HSDPA phase related control information and HS-SICHULPC order.(SFN_SICH_first, SFN_SICH_last) during this period of time, HS-SICH is assigned to UE_i, and during this period, Node B belongs to UE_i according to the ULPC order that the HS-SICH parameter generates.
When UE_i took HS-SCCH/HS-SICH each time, Node B can monitor out these parameters of SFN_SCCH_first, SFN_SICH_first, SFN_SCCH_first_1, SFN_SCCH_last, SFN_SICH_last_1 and SFN_SICH_last.
Suppose D
UL(unit: subframe) representative produces the time of delay of ULPC order, then D
ULCan be expressed as:
D
UL＝SFN_SCCH_first_1-SFN_SICH_first＝SFN_SCCH_last-SFN_SICH_last_1
D among Fig. 1
UL=1.
Suppose T (unit: the subframe) time difference between representative every couple of HS-SCCH, the HS-SICH, then:
T＝SFN_SICH_first-SFN_SCCH_first＝SFN_SICH_last-SFN_SCCH_last
T just determines when RNC is NodeB and every couple of HS-SCCH/HS-SICH of UE configuration.
By real-time monitoring, Node B can judge in which section period which UE which is assigned to HS-SCCH/HS-SICH, and, D
ULDetermine that by the NodeB self-ability this value is a known quantity in the NodeB side.Simultaneously, NodeB sends to its HS-SCCH and the configuration information of HS-SICH by RNC, can calculate the T value.That is: when HS-SCCH and HS-SICH were configured to NodeB, T was exactly a known quantity in the NodeB side.
Being taken during this period of time by UE_i at HS-SCCH, UE_i is implemented HS-SICH ULPC mechanism of the present invention, generally, is to be divided into two stages during this period of time, to adopt the different capacity controlling mechanism respectively.
Referring to Fig. 1, wherein, each grid is represented a subframe:
Phase I: from SFN_SCCH_first to (SFN_SICH_first+D
UL-1) subframe is carried TPC order " up " or " down " randomly or alternately in each HS-SCCH subframe in this stage;
Because in the phase I, Node B does not also receive HS-SICH information, Node B has no way of according to parameter generating ULPC such as the reception signal interference ratio order of HS_SICH subframe so, so, just adopt above-mentioned pressure that the mode of TPC order is set in this stage, effectively solve the power control problem that occurs in the channel switching process.
Second stage: from (SFN_SICH_first+D
UL) to the SFN_SCCH_last subframe, producing the TPC order according to existing ULPC order generating mode, n HS-SCCH subframe carried (n-D
UL) ULPC order that individual HS-SICH subframe produces, n meets the following conditions:
SFN_SICH_first+D
UL≤n≤SFN_SCCH_last
Because in second stage, Node B has received HS-SICH information, just can generate relevant TPC order according to its ULPC memory block parameter, the TPC order is carried by HS-SCCH send to UE_i.
Be actually in second stage and adopt existing ULPC algorithm to generate the mechanism of ULPC order: Node B receives first HS-SICH subframe (referring to " SFN_SICH_first " subframe here) in this stage, and the ULPC parameter that is measured by the received signal of this HS-SICH subframe generates the ULPC order; When the k that receives this stage (k＞=2) HS-SICH subframe (that is: since (SFN_SICH_first+1) subframe), the parameter of utilizing ULPC parameter that the received signal of k HS-SICH subframe obtains and HS-SICH ULPC memory block to preserve produces the ULPC order.
From above the UE_i busy channel is separated by time, effectively solve the problem of having no way of carrying out power control when channel switches.
When (SFN_SCCH_last+1) subframe is assigned to UE_j, the mode that adopts the above-mentioned HS-SICH that UE_i is taken to carry out power control is carried out uplink power control to the HS-SICH that UE_j takies.
In the ULPC of HSDPA system process, following two kinds of special circumstances are arranged:
1) monitors HS-SCCH when subframe SFN_SCCH is not taken by any UE as Node B, illustrate that this moment, the HS-SCCH channel was idle, so under these circumstances, be not required to be the HS-SICH channel at (SFN_SCCH-D
UL) subframe is provided with ULPC order;
2) in phase I or second stage process, it is empty might Node B monitoring the HS-SICH subframe, and just the HS-SICH subframe is a no signal sub-frame, and this subframe is not carried any information.From Node B angle, think that causing the HS-SICH subframe is the incorrect HS-SCCH of the parsing information of UE for empty reason, to such an extent as to do not send the HS-SICH feedback information.This moment, the TPC order of the HS-SICH subframe that Node B should sky was changed to " up ", just required UE that transmitting power is increased a step-length.Especially, when no signal HS-SICH is (SFN_SICH_Iast_1) subframe, this moment, Node B needn't carry out initialization to the ULPC memory block.Because last HS-SICH subframe that this subframe is a second stage.
Processing mode to each no signal sub-frame is the same.
If the next subframe of a no signal HS-SICH subframe is not the gap frame, need initialization is carried out in the ULPC memory block; And from this subframe of " sky " not, HS-SICH ULPC algorithm restarts.That is: this subframe is restarted first later subframe as second stage, the measurement parameter that is obtained by this subframe calculates generation TPC order and sends to UE_i by HS-SCCH, and is upgraded all parameters of HS-SICH ULPC memory block by the measurement parameter of this subframe.The measurement parameter that the TPC of the HS-SICH subframe that this subframe is later order is obtained by the received signal of current subframe and the parameter of HS-SICH ULPC memory block are determined.
Above the ULPC scheme of HS-SICH is introduced in detail, can be reduced several committed steps,, comprising referring to Fig. 2:
Step 201: monitor HS-SCCH/HS-SICH and UE corresponding relation in real time;
Step 202: obtain HS-SCCH/HS-SICH each time parameter for certain UE service stage, time parameter comprises SFN_SCCH_first, SFN_SICH_first, SFN_SCCH_first_1, SFN_SCCH_last, SFN_SICH_last_1, SFN_SICH_last, D
ULWith T etc.;
Step 203: the parameter of utilizing step 202 to obtain is divided into phase I and second stage with HS-SCCH/HS-SICH for certain UE service process;
Step 204: in the phase I, power control command TPC is changed to " up " or " down " randomly or alternately, TPC is carried to UE by n HS-SCCH;
Step 205: in second stage, according to (n-D
UL) the ULPC relevant parameter that provides of HS-SICH, produce the TPC order, carry to UE by n HS-SCCH;
Step 206:UE increases or reduces the uplink transmission power step-length according to TPC order indication.
State as preceding, in phase I and second stage, need to judge HS-SCCH whether free time and HS-SICH whether do not have carrying signal, and make different disposal according to different situations.
Present embodiment takes into full account shares physical channel by the characteristics of time-sharing multiplex, guarantees switch step and stabilization sub stage signal power are control effectively, and helps improving signal transmission accuracy.
Introduce embodiment two below, in the HSDPA system, carry out ULSC at HS-SICH:
State as preceding, HS-SICH is a up shared physical channel, and it can be by a plurality of UE time-sharing multiplexs, and when some UE carve some subframes (sub-frame) that take this HS-SICH at a time, all the other UE then can not transmit on these HS-SICH subframes.And HS-SCCH and HS-SICH are distributed in pairs by RNC, are carried to UE by its corresponding HS-SCCH according to PC (PowerControl, power control) and SS orders such as (Synchronization Shift, simultaneous bias) that the HS-SICH parameter generates.Suppose that HS-SICH is shared by a plurality of UE: UE1, UE2 ... UEn, each HSDPA user all have one's own up/downward special physical channel (UL/DL DPCH).Existing ULSC algorithm need be set up the parameter that the ULSC of this channel is preserved in a ULSC memory block (ULSC memory block) for the channel that carries out uplink synchronous control, and these parameters comprise:
(1) channel impulse response (Channel Impulse Response, the recursive average of the recursive average of original position CIR), the recursive average of peak and end position
(2) Lei Ji SS (simultaneous bias) measured value
(3) the needed recurrence mean parameter of coefficient correlation of calculating propagation delay (propagation delay)
(4) preceding (D-1) individual subframe ULSC order compensating parameter
(5) CIR (channel impulse response) target peak and Synchronization Control are adjusted step-length
Existing ULSC algorithm is when carrying out the channel generation ULSC order of uplink power control, to need two class parameters in each subframe:
(a) based on this channel at the measurement parameter that the received signal of current subframe obtains, comprising: the original position of current subframe channel impulse response, peak and end position, parameters such as current subframe propagation delay
(b) parameter of this channel ULSC memory block preservation
With UL DPCH channel is example, and existing ULPC algorithm adopts following steps to generate the ULSC order of each UL DPCH subframe:
(A) to first subframe of this channel, the measurement parameter that is obtained by the received signal of this subframe generates the ULSC order, and upgrades all parameters of this channel ULSC memory block with the measurement parameter of this subframe.That is: to first subframe, only generate the ULSC order of this subframe by the first kind parameter of ULSC algorithm.
(B) each subframe later to first subframe, the measurement parameter that is obtained by the received signal of current subframe and the calculation of parameter of this channel ULSC memory block generate the ULSC order, and upgrade this channel ULSC memory block parameter.That is: to each subframe since second subframe, its ULSC order is determined jointly by two class parameters.
The concrete steps that produce since the ULSC order of each subframe of second subframe are as follows:
(B-1) original position of the channel impulse response of this channel received signal of the current subframe of calculating, peak and end position, and calculating channel impulse response original position, the recursive average of peak and end position;
(B-2) estimate to begin till the current subframe simultaneous bias value SS of UE response ULSC order accumulative total adjustment from the ULSC process;
(B-3) estimate current subframe, receive the time delay between the moment of UE signal and moment that the UE signal is supposed to receive;
(B-4) by the time delay of being calculated in (B-3), the coefficient correlation of calculating channel time delay;
(B-5) by the recursive average and the instantaneous value of the recursive average of the recursive average of the original position of the channel impulse response of the coefficient correlation of channel delay, current subframe UL DPCH and instantaneous value, peak and instantaneous value, end position, and preceding (D-1) subframe ULSC order compensating parameter, calculating is used to generate original position, peak and the end position of channel impulse response of the UL DPCH of current subframe ULSC order, and generates the ULSC order.
In the HSDPA system, HS-SICH also needs to keep uplink synchronous.But the ULSC scheme similar with ULPC, that the ULSC of HS-SICH can not simple copy UL DPCH.Reason is that when HS-SCCH/HS-SICH and UE corresponding relation changed, existing ULSC mechanism was not considered the Synchronization Control in the handoff procedure.
The ULSC algorithm of HS-SICH channel is similarly HS-SICH and sets up a ULSC memory block, and the ULSC parameter of HS-SICH is preserved in this memory block.Parameter that preserve this memory block and existing ULSC algorithm are that to carry out the parameter of ULSC memory block that the channel of uplink synchronous control sets up being preserved identical.But even during HS-SICH is taken by a HSDPA UE, each does not interfere the ULSC parameter memory block of following channel of the ULSC memory block of HS-SICH and this UE, and more new situation is controlled separately.Order from the ULSC that generates HS-SICH below and set forth.
When the present invention carries out ULSC at HS-SICH in the HSDPA system, judge that at first working as UE_i takies during the HS-SICH, whether the up following special physical channel of UE_i and HS-SICH be at a time slot (timelot), if the ULSC order that then directly generates on the UL DPCH channel with this UE is gone up the ULSC order that produces as the HS-SICH of the same subframe of same time slot and is sent to UE by HS-SCCH.If not, then HS-SCCH and HS-SICH are taken during this period of time by UE_i, still adopt shown in Figure 1ly to be divided into two stages, and different phase adopts different ULSC mechanism.
The ULSC concrete steps comprise referring to Fig. 3:
Step 301: monitor HS-SCCH/HS-SICH and UE corresponding relation in real time;
Step 302: obtain HS-SCCH/HS-SICH each time parameter for certain UE service stage, time parameter comprises SFN_SCCH_first, SFN_SICH_first, SFN_SCCH_first_1, SFN_SCCH_last, SFN_SICH_last_1, SFN_SICH_last, D
ULWith T etc.;
Similar among above-mentioned time parameter and the embodiment one, do not give unnecessary details one by one, wherein, D
UL(unit: subframe), representative produces the time of delay of ULSC order; T (unit: subframe), represent the time difference between every couple of HS-SCCH, the HS-SICH.
Step 303: judge that HS-SICH and up following special physical channel are at same time slot? if, execution in step 304; Otherwise, execution in step 305;
Step 304: directly (n-D
UL) the ULSC order that generates of up following special physical channel is as (n-D
UL) the ULSC order of subframe, carry to UE by n HS-SCCH; Execution in step 308 then;
Wherein, SFN_SCCH_first≤n≤SFN_SCCH_last;
Step 305: the parameter of utilizing step 302 to obtain is divided into phase I and second stage with HS-SCCH/HS-SICH for certain UE service process;
Wherein, the phase I is: SFN_SCCH_first≤n≤SFN_SICH_first+D
UL-1
Second stage is: SFN_SICH_first+D
UL≤ n≤SFN_SCCH_last
Step 306: in the phase I, to each subframe " n " in this stage, directly (n-D
UL) the ULSC order that generates of up following special physical channel is as (n-D
UL) the ULSC order of subframe, carry to UE by n HS-SCCH; Utilize the ULSC memory block of the ULSC memory block content update HS-SICH of UL DPCH simultaneously, that is: make HS-SICH ULSC memory block and DL DPCH ULSC memory block content just the same;
Step 307: in second stage, to each subframe " n " in this stage, according to (n-D
ULThe instantaneous value of the instantaneous value of the original position of the channel impulse response of current subframe HS-SICH, the instantaneous value of peak, end position etc.) and the data of HS-SICH ULSC memory block) the ULSC measurement data that provides of subframe HS-SICH (comprising:, produce the ULSC order, carry to UE by n HS-SCCH;
Step 308:UE carries out the uplink synchronous adjustment according to SS order indication, and comprising increases a step-length, reduces by a step-length or remain unchanged.
When (SFN_SCCH_last+1) subframe is assigned to UE_j, adopts and carry out uplink synchronous with HS-SICH under the above-mentioned mode the same with UE_i takies UE_j and control.
In the ULSC of HSDPA system process, following two kinds of special circumstances are arranged also:
1. monitor HS-SCCH when subframe SFN_SCCH is not taken by any UE as Node B, illustrate that this moment, the HS-SCCH channel was idle, so under these circumstances, be not required to be the HS-SICH channel at (SFN_SCCH-D
UL) subframe is provided with ULSC order;
2. in phase I or second stage process, it is empty might Node B monitoring the HS-SICH subframe, and just the HS-SICH subframe is not carried any information.From Node B angle, think and cause the HS-SICH subframe to be that UE is incorrect to resolve HS-SCCH information, to such an extent as to the incorrect HS-SICH feedback information that sends for empty reason.At HS-SICH is under the situation of sky, and Node B is changed to " do-nothing " (remaining unchanged) with the SS order, just requires UE not carry out the sequential adjustment.If next subframe is not empty, then initialization is carried out in the ULSC memory block, be updated to the content of the ULSC memory block of the UL DPCH of this UE HS-SICH ULSC memory block just the same; And, directly generate the ULSC order by measurement data when frame in next subframe first subframe that next subframe begins as the ULSC algorithm.
Present embodiment takes into full account shares physical channel by the characteristics of time-sharing multiplex, guarantees switch step and stabilization sub stage signal Synchronization are control effectively, and helps improving signal transmission accuracy.
Introduce embodiment three below, in the HSDPA system, carry out DLPC at HS-SCCH:
In the TD-SCDMA mobile communication system, the DLPC process is: the down channel that the UE period measurement obtains carrying out DLPC (for example: sir measurement value DL DPCH channel), and compare with the target SIR of this channel, when measured value greater than desired value, the TPC order is changed to " down ", when measured value less than desired value, TPC order is changed to " up "; The TPC order that produces by the up channel by this down channel correspondence (for example: UL DPCH) send to NodeB.Node B by corresponding up channel (for example: UL DPCH) receive TPC, the TPC bit is adjudicated, if court verdict is " down ", then the transmitting power with this down channel reduces a power control step-size, if court verdict is " up ", then transmitting power is increased a power control step-size.
In the HSDPA system DLPC process of HS-SCCH and top general down channel (for example: DLPC process DL DPCH) is similar, and just UE feeds back to NodeB by the TPC order that the SIR that measures HS-SCCH obtains by the HS-SICH with this HS-SCCH pairing.As shared channel, the DLPC of HS-SCCH has its feature that is different from general down channel again, still adopts shown in Figure 1 HS-SCCH DLPC process to be described, and each parameter and Fig. 1 among the embodiment three are similar, do not repeat them here.
Phase I: from (SFN_SCCH_first) individual subframe to the (SFN_SICH_first+D
UL-1) individual subframe, the Initial Trans emission HS-SCCH signal that NodeB adopts the HS-SCCH channel to be provided with; Because in this stage, Node B does not also receive corresponding HS-SICH, just has no way of learning the DLPC order of HS-SCCH yet;
Second stage: from (SFN_SICH_first+D
UL) the individual subframe of individual subframe to the (SFN_SCCH_last), adopt general DLPC mechanism: Node B is (n-D from sequence number
UL) the HS-SICH subframe parse DLPC order TPC, n HS-SCCH subframe transmitting power adjusted, meet the following conditions:
SFN_SICH_first+D
UL≤n≤SFN_SCCH_last。
When indicating the HS-SCCH transmitting power that calculates greater than the HS-SCCH maximum transmission power P that presets according to TPC
M, then adopt P
MAs the HS-SCCH transmitting power.
When (SFN_SCCH_last+1) subframe is assigned to UE_j, adopts and above-mentionedly UE_i is carried out the HS-SCCH that the mode of descending power control takies UE_j carry out descending power control.
When HS-SICH is detected as gap frame (that is: no signal sub-frame), then Node B thinks that DL TPC order is " up ", increases by one to the HS-SCCH transmitting power and adjusts step-length.
When n HS-SCCH do not take for any UE, then there is no need to resolve (n-D
UL) the TPC order of individual HS-SICH.
Except ULPC, ULSC and DLPC, the embodiment of the invention four also provides the DLBF solution of a kind of HS-SCCH channel and HS-PDSCH channel.This scheme can be used in combination with at least one embodiment among embodiment one, embodiment two and the embodiment three, also can use separately.
Specifically be that during UE_i took HS-SCCH, the downlink wave beam that generates on the UL DPCH channel of this UE formed (DLBF) weight vector and directly is used as the weight vector that HS-SCCH/HS-PDSCH channel downlink wave beam forms.Further, the weight vector of the DLBF of the HS-SCCH/HS-PDSCH of n subframe is that UL DPCH channel by UE_i is at (n-D
UL) the DLBF weight vector that generates of subframe, wherein, D
ULUnit is a subframe, and representative produces the time of delay of DLBF weight vector.When the UL of UE_i DPCH channel is in up discontinuous transmission (UL DTX, Uplink Discontinuous Transmission) pattern, the weight vector (weightvector) that then utilizes the nearest SB (special burst pulse) of n subframe of distance of up following special physical channel to generate, as the weight vector of HS-SCCH/HS-PDSCH, finish DLBF in the n subframe.If utilize the HS-SICH of HS-SCCH correspondence to generate the DLBF weight vector, because HS-SICH is that time-sharing multiplex is given a plurality of UE, the DLBF weight vector that is provided by HS-SICH might not be very accurate.And above-mentioned DLBF utilizes UL DPCH, and it is the special-purpose channel of following, and can not guaranteed the accuracy of weight vector by time-sharing multiplex.
The present invention also provides a kind of base station equipment (Node B), is used for the HSDPA system is carried out power, Synchronization Control and/or wave beam forming.
When UE_i took HS-SCCH/HS-SICH each time, Node B can monitor out these parameters of SFN_SCCH_first, SFN_SICH_first, SFN_SCCH_first_1, SFN_SCCH_last, SFN_SICH_last_1 and SFN_SICH_last.These meaning of parameters such as Fig. 1 do not repeat them here.When (SFN_SCCH_last+1) individual subframe is assigned to UE_j, adopts above-mentioned mode of UE_i being carried out power/Synchronization Control that the HS-SICH of UE_j is carried out ascending power/Synchronization Control, and HS-SCCH is carried out descending power control and wave beam formation.When HS-SICH is a no signal sub-frame, Node B is changed to " up " with descending TPC order in power control scheme, the HS-SCCH transmitting power is increased by one adjust step-length; In the uplink synchronous controlling schemes, Node B is changed to " do-nothing " with SS order, and should order and send to UE by HS-SCCH; In the uplink power control scheme, Node B is changed to " up " with UL TPC order, and should order and send to UE by HS-SCCH.
From uplink power control (ULPC), uplink synchronous control (ULSC) and descending power control (DLPC) downlink wave beam shaping (DLBF) scheme, set forth base station equipment provided by the invention below from four embodiment.
Be illustrated in figure 4 as embodiment one base station equipment structural representation, it comprises monitoring record unit 401 and uplink power control performance element 402.
UE and HS-SCCH, HS-SICH corresponding relation are responsible for monitoring in real time in monitoring record unit 401, obtain the time parameter of UE and channel corresponding relation, and divide phase I and second stage according to time parameter;
Uplink power control performance element 402 is known when being in the phase I from monitoring record unit 401, and replacing or the uplink power control order is set randomly is up or down; Know when being in second stage from monitoring record unit 401, utilize the HS-SICH power contorl parameters, the uplink power control order is set.
Preferably, base station equipment also comprises gap frame judging unit 403 among the embodiment one, is used to judge whether the HS-SICH subframe is empty, if indication uplink power control performance element 402 is provided with power control command and adjusts step-length for increasing by one.
Preferably, base station equipment also comprises gap frame processing unit 404 among the embodiment one; When gap frame judging unit 403 determine empty HS-SICH subframes be not last HS-SICH subframe of sending of UE and should the next HS-SICH of sky HS-SICH subframe when empty, 404 pairs of power contorl parameters of indication gap frame processing unit carry out initialization, and indication uplink power control performance element 402 adopts the mode of described second stage that power control command is set.
Referring to Fig. 5, be base station equipment embodiment two schematic diagrames of the present invention.It comprises monitoring record module 501 and uplink synchronous Executive Module 502.
Uplink synchronous Executive Module 502 is provided when being in the phase I from monitoring record module 501 by the synchronous control command that utilizes up following special physical channel to provide; Know from monitoring record module 501 and to utilize HS-SICH Synchronization Control parameter when being in second stage, the uplink synchronous control command is set.
Preferably, the base station equipment among the embodiment two also comprises gap frame judge module 503, is used to judge whether the HS-SICH subframe is empty, if indication uplink synchronous Executive Module 502 is provided with synchronous control command for remaining unchanged.
Preferably, base station equipment also comprises gap frame processing module 504 among the embodiment two; When gap frame judging unit 503 determine empty HS-SICH subframes be not last HS-SICH subframe of sending of UE and should the next HS-SICH of sky HS-SICH subframe when empty, indication gap frame processing module 504 is utilized the Synchronization Control parameter of the Synchronization Control parameter update HS-SICH of up following special physical channel, simultaneously, indication uplink synchronous Executive Module 502 adopts the mode of described second stage that synchronous control command is set.
Preferably, base station equipment also comprises and follows judge module 505 among the embodiment two, whether be used to judge HS-SICH and up following special physical channel at same time slot, if indication uplink synchronous Executive Module 502 adopts the synchronous control command of described up following special physical channel.
Referring to Fig. 6, be base station equipment embodiment three structural representations of the present invention.It comprises monitoring record unit 601 and downlink power control performance element 602.
Down-going synchronous performance element 602 is known when being in the phase I from monitoring record unit 601, adopts default transmit power emission HS-SCCH information; Know when being in second stage from monitoring record unit 601,, adjust the transmitting power of HS-SCCH according to HS-SICH descending power control command.
Preferably, the base station equipment among the embodiment three also comprises gap frame acknowledgment unit 603, is used to judge whether the HS-SICH subframe is empty, if the synchronous performance element 602 of indicating downlink increases by one with the HS-SCCH transmitting power and adjusts step-length.
Preferably, base station equipment among the embodiment three also comprises maximum power processing unit 604, when being used for determining the HS-SCCH transmitting power greater than the HS-SCCH maximum transmission power that presets, the synchronous performance element 602 of indicating downlink adopts maximum transmission power as the HS-SCCH transmitting power.
Referring to Fig. 7, be base station equipment embodiment four structure schematic diagrames of the present invention.It comprises judging unit 701 and weight vector generation unit 702.
Judging unit 701 is used to judge whether up following special physical channel is up discontinuous sending mode, and the result is informed weight vector generation unit 702;
Weight vector generation unit 702, when judging unit 701 knew that UL DPCH is continuous sending mode, the weight vector of the DLBF of the HS-SCCH/HS-PDSCH of n subframe was that the UL DPCH channel of UE_i is at (n-D
UL) the DLBF weight vector that generates of subframe; When UL DPCH is discontinuous sending mode on judging unit 701 is known, the weight vector (weight vector) that then utilizes the nearest SB (special burst pulse) of n subframe of distance of UL DPCH to generate, as the weight vector of HS-SCCH/HS-PDSCH, finish DLBF in the n subframe.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (18)
1. a high-speed downlink packet access HSDPA system power control method is shared information channel HS-SICH at high speed uplink, it is characterized in that, comprising:
The base station is monitored downlink high-speed shared control channel HS-SCCH, HS-SICH and user equipment (UE) corresponding relation in real time, obtains the time parameter of channel and UE corresponding relation;
From the base station to UE send first HS-SCCH subframe, phase I before generating power control command to the HS-SICH subframe of utilizing UE feedback, at random or be arranged alternately power control command for raising up or downward modulation down;
From first HS-SICH subframe of utilizing UE feedback generate power control command, to the second stage that sends last HS-SCCH subframe for UE, utilization is provided with power control command at the power contorl parameters that the HS-SICH subframe calculates;
The HS-SCCH subframe that power control command will be carried in the base station sends to UE.
2. HSDPA system power control method according to claim 1 is characterized in that, also comprises:
Judge whether the HS-SICH subframe is empty, if power control command is set adjusts step-length for increasing by one.
3. HSDPA system power control method according to claim 2 is characterized in that, also comprises:
Judge whether empty HS-SICH subframe is last HS-SICH subframe that UE sends, if not when determining next HS-SICH not for sky: the power contorl parameters to storage before carries out initialization; And adopt the mode of described second stage that power control command is set.
4. a HSDPA system synchronization control method at HS-SICH, is characterized in that, comprising:
The base station is monitored HS-SCCH, HS-SICH and UE corresponding relation in real time, obtains the time parameter of channel and UE corresponding relation;
Send first HS-SCCH subframe, generate the synchronous control command phase I before from the base station to UE to first HS-SICH subframe of utilizing the UE feedback, utilization is provided with synchronous control command at the synchronous control command that up following special physical channel generates;
From first HS-SICH subframe of utilizing UE feedback generate synchronous control command, to the second stage that sends last HS-SCCH subframe for UE, utilize Synchronization Control parameter at the generation of HS-SICH subframe, synchronous control command is set;
The HS-SCCH subframe that synchronous control command will be carried in the base station sends to UE.
5. HSDPA system synchronization control method according to claim 4 is characterized in that, also comprises:
Judge whether the HS-SICH subframe is empty, if synchronous control command is set for remaining unchanged.
6. HSDPA system synchronization control method according to claim 5 is characterized in that, also comprises:
Judge whether empty HS-SICH subframe is last HS-SICH subframe that UE sends, if not, when determining next HS-SICH: the Synchronization Control parameter of utilizing the Synchronization Control parameter update HS-SICH of up following special physical channel not for sky; And adopt the mode of described second stage that synchronous control command is set.
7. according to claim 4,5 or 6 described HSDPA system synchronization control methods, it is characterized in that,
Whether judge HS-SICH and up following special physical channel at same time slot, if utilize the synchronous control command of up following special physical channel; Otherwise, synchronous control command is set according to phase I and second stage.
8. a HSDPA system power control method at HS-SCCH, is characterized in that, comprising:
The base station is monitored HS-SCCH, HS-SICH and UE corresponding relation in real time, obtains the time parameter of channel and UE corresponding relation;
Send first HS-SCCH subframe, phase I before the power control command that obtains first HS-SICH subframe from the base station to UE, adopt the HS-SCCH transmitting power of base station acquiescence;
Power control command from obtain first HS-SICH subframe, to the second stage that sends last HS-SCCH subframe for UE, according to the power control command in the HS-SICH subframe of receiving indication, adjust HS-SCCH subframe transmitting power.
9. a beam-forming method at HS-SCCH, is characterized in that, comprising:
Judge whether up following special physical channel is up discontinuous sending mode:
If, utilize on the up following special physical channel special burst pulse to generate weight vector, as HS-SCCH or/and the weight vector of HS-PDSCH;
Otherwise, directly utilize the preceding D of up following special physical channel
ULIndividual subframe generates weight vector, as HS-SCCH or/and the weight vector of HS-PDSCH; Described D
ULRepresentative produces the time of delay of weight vector.
10. a base station is used for the HSDPA system and carries out power control at HS-SICH, it is characterized in that, comprising:
The monitoring record unit is monitored UE and HS-SCCH, HS-SICH corresponding relation in real time, obtains the time parameter of UE and channel corresponding relation;
The uplink power control performance element is known when being in the phase I from described monitoring record unit, and replacing or the uplink power control order is set randomly is up or down; Know when being in second stage from described monitoring record unit, utilize the power contorl parameters that calculates at the HS-SICH subframe, the uplink power control order is set.
11. base station according to claim 10 is characterized in that, also comprises:
Gap frame judging unit: judge whether the HS-SICH subframe is empty, if indicate described uplink power control performance element that power control command is set and adjust step-length for increasing by one.
12. base station according to claim 11 is characterized in that, also comprises: the gap frame processing unit; Described gap frame judging unit determine empty HS-SICH subframe be not last HS-SICH subframe of sending of UE and should the next HS-SICH of sky HS-SICH subframe when empty, indicate described gap frame processing unit that power contorl parameters is carried out initialization, and indicate described uplink power control performance element to adopt the mode of described second stage that power control command is set.
13. a base station is used for the HSDPA system and carries out Synchronization Control at HS-SICH, it is characterized in that, comprising:
The monitoring record module is monitored UE and HS-SCCH, HS-SICH corresponding relation in real time, obtains the time parameter of UE and channel corresponding relation;
The uplink synchronous Executive Module is provided when being in the phase I from described monitoring record module by the synchronous control command that utilizes up following special physical channel to provide; Know when being in second stage from described monitoring record module, utilize the Synchronization Control parameter that calculates at the HS-SICH subframe, the uplink synchronous control command is set.
14. according to the described base station of claim 13, it is characterized in that, also comprise:
Gap frame judge module: judge whether the HS-SICH subframe is empty, if indicate described uplink synchronous Executive Module synchronous control command to be set for remaining unchanged.
15. according to the described base station of claim 14, it is characterized in that, also comprise: gap frame processing module; Described gap frame judging unit determine empty HS-SICH subframe be not last HS-SICH subframe of sending of UE and should the next HS-SICH of sky HS-SICH subframe when empty, indicate described gap frame processing module to utilize the Synchronization Control parameter of the Synchronization Control parameter update HS-SICH of up following special physical channel, simultaneously, indicate described uplink synchronous Executive Module to adopt the mode of described second stage that synchronous control command is set.
16. according to claim 13,14 or 15 described base stations, it is characterized in that, also comprise:
Follow judge module: whether be used to judge HS-SICH and up following special physical channel at same time slot, if indicate described uplink synchronous Executive Module to adopt the synchronous control command of described up following special physical channel; Otherwise, indicate described uplink synchronous Executive Module the uplink synchronous control command to be set according to phase I and second stage.
17. a base station is used for the HSDPA system and carries out power control at HS-SCCH, it is characterized in that, comprising:
The monitoring record unit is monitored UE and HS-SCCH, HS-SICH corresponding relation in real time, obtains the time parameter of UE and channel corresponding relation;
Downlink power control system performance element is known when being in the phase I from described monitoring record unit, adopts default transmit power emission HS-SCCH information; Know when being in second stage from described monitoring record unit,, adjust the transmitting power of HS-SCCH according to the descending power control command among the HS-SICH.
18. a base station is used for the HSDPA system is carried out wave beam forming at HS-SCCH, it is characterized in that, comprising:
Judging unit: be used to judge whether up following special physical channel is up discontinuous sending mode;
Weight vector generation unit: when described judging unit determines that up following special physical channel is discontinuous sending mode, the weight vector that the Last special burst pulse of up following special physical channel is generated, as HS-SCCH or/and the weight vector of High-Speed Physical Downlink Shared Channel HS-PDSCH; Otherwise, directly utilize the preceding D of up following special physical channel
ULIndividual subframe generate weight vector as HS-SCCH or/and the weight vector of HS-PDSCH, described D
ULRepresentative produces the time of delay of weight vector.
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