CN101128038B - Joint control method and device for sharing control channels in high-speed downlink packet access - Google Patents
Joint control method and device for sharing control channels in high-speed downlink packet access Download PDFInfo
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Abstract
The utility model discloses a combined control method which shares the sending power of control channels in a high-speed downlink packet access, comprising: arranging data structure of a subscriber equipment UE with carrier as a unit in a base station NodeB; when NodeB uses a sharing control channel HS-SCCH in the carrier to dispatch UE, the sending power of the HS-SCCH is adjusted by UE according to the downlink power control command feedback through the sharing information channel HS-SICH of the carrier last time. The utility model discloses a combined control method which shares the information channel of the high-speed downlink packet access. The utility model also discloses a corresponding combined control device which shares the sending power of control channels in the high-speed downlink packet access, and a corresponding combined control device which shares the information channel of the high-speed downlink packet access. The utility model has the advantages of combined controlling all HS-SCCH/HS-SICH distributed on the same carrier, more than mutually controlling HS-SCCH/HS-SICH with corresponding relationship.
Description
Technical field
The present invention relates to high speed downlink packet and insert (HSDPA, High Speed Downlink PackageAccess) technology, relate in particular to the combination control method and the device of shared control channel among a kind of HSDPA (HS-SCCH/HS-SICH).
Background technology
For adapting to the multimedia service needs growing to high speed data transfer, for improving user's peak-data transmission rate and throughput of system, 3-G (Generation Three mobile communication system) has been introduced the HSDPA technology.HSDPA has introduced shared control channel in physical layer, promptly, up shared information channel (HS-SICH, Shared Information Channel for HS-DSCH) and descending shared control channel (HS-SCCH, Shared Control Channel for HS-DSCH).HS-SCCH is used to carry the control information of all relevant bottoms, and HS-SICH is used to feed back relevant uplink information.HS-SICH and HS-SCCH always occur in pairs, promptly for each HS-SCCH, all correspondingly have a HS-SICH associated.By HS-SICH and HS-SCCH can make subscriber equipment (UE, UserEquipment) and base station (Node B) carry out information interaction apace.
HS-SICH need control transmitted power and uplink synchronous, and HS-SCCH need control transmitted power.At present, adopt with a pair of HS-SCCH/HS-SICH mutually the method for control realize to the control of the transmitted power of HS-SICH and uplink synchronous with to the control of HS-SCCH transmitted power.Below in conjunction with Fig. 1, be that example is done this method and specified with the transmitted power of control HS-SCCH:
Have only 1 to be example with online HSDPA user, in step 101, when NodeB adopt certain carrier wave in a pair of HS-SCCH/HS-SICH when this user is carried out scheduling controlling, NodeB will adopt HS-SCCH to UE transmitting control commands and scheduling of resource assignment information.In step 102, UE can compare HS-SCCH signal to noise ratio that measures and the HS-SCCH signal to noise ratio that presets, and generates the descending power control command.In step 103, UE with the corresponding HS-SICH of described HS-SCCH on comprise the relevant information of descending power control command to NodeB feedback.In step 104, NodeB will adjust the transmitted power of described HS-SCCH according to the descending power control command.In step 105, when this is scheduled once more to HS-SCCH/HS-SICH, described NodeB will adopt adjusted HS-SCCH transmitted power.
To the control method of HS-SICH transmitted power to similar to the control method of HS-SCCH transmitted power, promptly, NodeB detects the HS-SICH that UE sends, and the HS-SICH signal to noise ratio that measures is compared the order of generation uplink power control with the HS-SICH signal to noise ratio of setting; When this is scheduled once more to HS-SCCH/HS-SICH, will this uplink power control order be sent to described UE by HS-SCCH, described UE can adjust this transmitted power to HS-SICH according to this uplink power control order.
To the control method of HS-SICH uplink synchronous to similar to the control method of HS-SICH transmitted power, promptly, NodeB detects the HS-SICH that UE sends, HS-SICH channel impulse response timing information that measures and the target timing position that presets are compared, generate HS-SICH uplink synchronous control command; When this is scheduled once more to HS-SCCH/HS-SICH, will this uplink synchronous control command be sent to described UE by HS-SCCH, described UE can adjust the Timing Advance that HS-SICH sends according to this uplink synchronous control command.The pre-set time of ascending time slot position in own relatively frame structure when wherein, described Timing Advance is UE transmission upward signal.
When simultaneously online HSDPA number of users was many, the continuity to same user is difficult to guarantee the HS-SCCH/HS-SICH scheduling had 5 to be the example explanation with online HSDPA user of while below.
Suppose that online HSDPA user has 5 simultaneously, be respectively UE1, UE2, UE3, UE4 and UE5, NodeB adopts 4 pairs of shared channels in the carrier wave, be HS-SCCH1/HS-SICH1, HS-SCCH2/HS-SICH2, HS-SCCH3/HS-SICH3 and HS-SCCH4/HS-SICH4, dispatch described 5 UE.At this moment, during the 1st scheduling of NodeB UE1, may adopt the HS-SCCH1 of this carrier wave, based on timing relationship, UE1 feeds back to NodeB with the descending power control command of HS-SCCH1 by HS-SICH1, and NodeB will adjust the transmitted power of HS-SCCH1 according to this command word; During the 2nd scheduling of NodeB UE1, may adopt the HS-SCCH3 of this carrier wave, at this moment NodeB can't be according to transmitted power transmitting control commands and the scheduling of resource assignment information on HS-SCCH3 of adjusted HS-SCCH1; During the 3rd scheduling of NodeB UE1, may adopt the HS-SCCH2 of this carrier wave, at this moment NodeB can't be according to transmitted power transmitting control commands and the scheduling of resource assignment information on HS-SCCH2 of adjusted HS-SCCH1; During NodeB the 4th scheduling UE1, if adopt the HS-SCCH1 of this carrier wave, at this moment NodeB could be according to transmitted power transmitting control commands and the scheduling of resource assignment information on HS-SCCH1 of adjusted HS-SCCH1.But this moment, conversion may take place in the position of UE1, or other objective factor may change, and caused actual HS-SCCH1 transmitted power also to change, and so just caused the control precision reduction to HS-SCCH.In like manner, also can cause the control precision of HS-SICH is reduced.
The above-mentioned explanation of just UE1 being carried out, also like this to UE2, UE3, UE4 and UE5.
From the above, when simultaneously online HSDPA number of users is many, be difficult to guarantee to adopt the continuity of dispatching same user with a pair of HS-SCCH/HS-SICH, thereby the time interval that will cause dispatching same user with a pair of HS-SCCH/HS-SICH increases, increase the time interval that HS-SCCH/HS-SICH controls mutually, reduce the HS-SCCH/HS-SICH frequency of control mutually, reduce the HS-SCCH/HS-SICH precision of control mutually.
Summary of the invention
In view of this, the technical problem that the present invention solves provides the combination control method and the device of shared control channel among a kind of HSDPA, compared with prior art, can reduce the time interval that HS-SCCH/HS-SICH controls mutually by this method and apparatus, improve the HS-SCCH/HS-SICH frequency of control mutually, improve the HS-SCCH/HS-SICH precision of control mutually.
The present invention includes:
The combination control method of the transmitted power of shared control channel during a kind of high speed downlink packet inserts comprises:
In base station node B, be that unit is provided with data structure with the carrier wave to each user equipment (UE), when the shared control channel HS-SCCH scheduling UE in the NodeB employing carrier wave, will be according to the transmitted power that once adjust described HS-SCCH before this UE by the descending power control command of the shared information channel HS-SICH feedback in this carrier wave; Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
Wherein, described UE obtains the descending power control command by following step:
The signal to noise ratio of the HS-SCCH corresponding with described HS-SICH that described UE will measure compares with the HS-SCCH signal to noise ratio that presets, and generates the descending power control command.
Wherein, further comprise:
If on described carrier wave, distribute the following special physical channel DPCH of described UE, then NodeB this follow the difference of DPCH transmitted power and preset value to be set to the minimum threshold of the transmitted power of HS-SCCH.
Wherein, further comprise:
When NodeB adopt the described UE of the double scheduling of HS-SCCH in the described carrier wave interval greater than the value that presets the time, when dispatching described UE for the second time, adopt the transmitted power of initial transmission power as HS-SCCH.
Share the combination control method of information channel during a kind of high speed downlink packet inserts, comprising:
In UE, be that unit is provided with data structure, when UE during to the NodeB feedback information, will adjust described HS-SICH by the HS-SICH in the carrier wave according to the upload control order that once sends by the HS-SCCH in this carrier wave before this NodeB with the carrier wave; Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
Wherein, described control command is the uplink power control order, and the transmitted power of described HS-SICH is adjusted in the uplink power control order that described UE once sends before according to described NodeB.
Wherein, described control command is the uplink synchronous control command, and the uplink synchronous control command adjustment that described UE once sends before according to described NodeB is by the Timing Advance of described HS-SICH feedback information.
Wherein, described NodeB obtains the uplink power control order by following step:
Described NodeB adopts the HS-SCCH in the described carrier wave to dispatch described UE;
Described NodeB will measure the signal to noise ratio with the corresponding HS-SICH of described HS-SCCH, and the signal to noise ratio of this HS-SICH of obtaining is compared with the HS-SICH signal to noise ratio that presets, and generate the uplink power control order.
Wherein, described NodeB obtains the uplink synchronous control command by following step:
Described NodeB adopts the HS-SCCH in the described carrier wave to dispatch described UE;
Described NodeB will measure the channel impulse response timing information with the corresponding HS-SICH of described HS-SCCH, the channel impulse response timing information of this HS-SICH of obtaining is compared with the target timing positional information that presets, generate the uplink synchronous control command.
Wherein, further comprise:
When described UE by the double feedback information of HS-SICH in the described carrier wave interval greater than the value that presets the time, if on described carrier wave, distribute the DPCH that follows of described UE, and the HS-SICH when this follows DPCH with feedback information for the second time is at identical ascending time slot, then for the second time during feedback information, adopt this to follow the transmitted power of DPCH transmitted power as HS-SICH; Otherwise, adopt open-loop power control method to adjust the transmitted power of this HS-SICH.
Wherein, further comprise:
When described UE by the double feedback information of HS-SICH in the described carrier wave interval greater than the value that presets the time, if on described carrier wave, distribute the DPCH that follows of described UE, then, adopt this to follow the Timing Advance of the transmitting time lead of DPCH as feedback information in second time during feedback information.
Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
The Combined Control Unit of the transmitted power of shared control channel during a kind of high speed downlink packet inserts comprises:
Data structure is provided with the unit, and being used for each UE is that unit is provided with data structure with the carrier wave;
Power adjustment unit is used for when adopting the HS-SCCH scheduling UE of carrier wave, will be according to the transmitted power of once adjusting described HS-SCCH before this UE by the descending power control command of the feedback of the HS-SICH in this carrier wave; Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
Share the Combined Control Unit of information channel during a kind of high speed downlink packet inserts, comprising:
Data structure is provided with the unit, and being used for the carrier wave is that unit is provided with data structure;
Jointly control the unit, be used for to adjust described HS-SICH according to the upload control order that once sends before this NodeB by the HS-SCCH in this carrier wave as the HS-SICH of UE by carrier wave during to the NodeB feedback information; Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
Wherein, described upload control order comprises uplink power control order and uplink synchronous control command.
Wherein, describedly jointly control the unit and comprise:
Power adjustment unit is used for the transmitted power according to the uplink power control order adjustment HS-SICH that once sends before the NodeB.
Wherein, describedly jointly control the unit and comprise:
The time adjustment unit is used for according to the Timing Advance of the uplink synchronous control command adjustment that once sends before the NodeB by the HS-SICH feedback information.
In the present invention, no matter at NodeB still at UE, all be that unit is provided with data structure with the carrier wave, when the HS-SCCH scheduling UE in the NodeB employing carrier wave, will be according to the transmitted power that once adjust described HS-SCCH before this UE by the descending power control command of the feedback of the HS-SICH in this carrier wave; When UE during to the NodeB feedback information, will adjust described HS-SICH by the HS-SICH in the carrier wave according to the upload control order that once sends by the HS-SCCH in this carrier wave before this NodeB.As can be seen, realized jointly controlling of HS-SCCH on the same carrier wave and HS-SICH by method of the present invention, rather than based on the mutual control with a pair of HS-SCCH/HS-SICH, HS-SCCH and HS-SICH can there be corresponding relation.Thereby, reduced the HS-SCCH and the mutual time interval of controlling of HS-SICH on the same carrier wave, improve HS-SCCH and the HS-SICH frequency of control mutually, the precision of the mutual control of raising HS-SCCH and HS-SICH.
Description of drawings
Fig. 1 is the method flow diagram of in the prior art transmitted power of HS-SCCH being controlled;
Fig. 2 is the method flow diagram that among the present invention the transmitted power of HS-SCCH is jointly controlled;
Fig. 3 is the method flow diagram that among the present invention the transmitted power of HS-SICH is jointly controlled;
Fig. 4 is the method flow diagram that among the present invention the uplink synchronous of HS-SICH is jointly controlled;
Fig. 5 is the schematic diagram of the Combined Control Unit of HS-SCCH transmitted power among the present invention;
Fig. 6 is the schematic diagram of the Combined Control Unit of HS-SICH among the present invention.
Embodiment
In the shared control channel resource allocation proposal of present HSDPA, usually all HS-SCCH on certain carrier wave are configured in identical descending time slot, all HS-SICH are configured in identical ascending time slot, promptly, if certain carrier wave has 4 couples of HS-SCCH/HS-SICH, be respectively HS-SCCH1/HS-SICH1, HS-SCCH2/HS-SICH2, HS-SCCH3/HS-SICH3 and HS-SCCH4/HS-SICH4, HS-SCCH1 then, HS-SCCH2, HS-SCCH3 is dispensed on identical descending time slot with HS-SCCH4, and HS-SICH1, HS-SICH2, HS-SICH3 is dispensed on identical ascending time slot with HS-SICH4.Based on this allocation plan, when a user by many on the same carrier wave during to the HS-SCCH/HS-SICH channel dispatch, all HS-SICH are at identical ascending time slot, all HS-SCCH are at identical descending time slot, the present invention is by utilizing at measured values such as the transmitted power of identical time slot and signal to noise ratios, all HS-SCCH/HS-SICH on the same carrier wave of dispatching same user are jointly controlled, thereby reduce the time interval that HS-SCCH/HS-SICH controls mutually, improve the HS-SCCH/HS-SICH frequency of control mutually, improve the control precision of shared control channel.
Below in conjunction with embodiment 1, specify the method that the HS-SCCH descending power is jointly controlled.Fig. 1 is the method flow diagram that the transmitted power to HS-SCCH jointly controls.As shown in Figure 1, can the transmitted power of HS-SCCH being jointly controlled for making NodeB, is that unit is provided with data structure at NodeB with the carrier wave to UE in step 201 at first, rather than is that unit is provided with data structure with each to HS-SCCH/HS-SICH.Through after above-mentioned the setting, NodeB will be all measured values that comprise signal to noise ratio of the storage HS-SCCH/HS-SICH of unit with the carrier wave.
In step 202, when NodeB adopts UE of certain carrier dispatching, from the HS-SCCH that described carrier wave is supported, select this UE of scheduling.
In step 203, described UE can compare the signal to noise ratio of this HS-SCCH of measuring with the HS-SCCH signal to noise ratio that presets, generate the descending power control command.
In step 204, described UE can be by feeding back the relevant information that comprises the descending power control command with the corresponding HS-SICH of this HS-SCCH to NodeB.
In step 205, NodeB will adjust the transmitted power of HS-SCCH in the described carrier wave according to the descending power control command of the feedback of UE described in the step 204.
In step 206, when NodeB selects the described UE of described carrier dispatching once more, will from the HS-SCCH of its support, select this UE of scheduling, and on this HS-SCCH, adopt the regulated transmission power that in step 205, obtains to send control information.
More particularly, be after unit is provided with data structure with the carrier wave, suppose that online HSDPA user has 5 simultaneously, be respectively UE1, UE2, UE3, UE4 and UE5, NodeB can adopt 4 couples of HS-SCCH/HS-SICH on the carrier wave, be HS-SCCH1/HS-SICH1, HS-SCCH2/HS-SICH2, HS-SCCH3/HS-SICH3 and HS-SCCH4/HS-SICH4, dispatch described 5 UE.At this moment, when the 1st scheduling of NodeB UE1, may select the HS-SCCH1 of this carrier wave; UE1 can compare the signal to noise ratio of the HS-SCCH1 that measures with the HS-SCCH signal to noise ratio that presets, generate the descending power control command; UE1 will feed back to NodeB with the descending power control command of HS-SCCH1 by HS-SICH1 at system's official hour; NodeB will adjust the transmitted power of HS-SCCH1 according to this descending power control command; When the 2nd scheduling of NodeB UE1, may select the HS-SCCH3 of this carrier wave, NodeB will adopt transmitted power transmitting control commands and the scheduling of resource assignment information on HS-SCCH3 of adjusted HS-SCCH1, thereby realize the transmission power control to the HS-SCCH of described carrier wave.
The above-mentioned explanation of just UE1 being carried out, also like this to UE2, UE3, UE4 and UE5, no longer repeat here to illustrate.
If on this carrier wave, distributed the following special physical channel (DPCH of this UE, DedicatedPhysical Channel), for preventing to reduce owing to the control precision that control frequency reduces or the flase drop of joint-detection module causes, for improving control precision to HS-SCCH, NodeB can also carry out following processing after the transmitted power of HS-SCCH is adjusted:
When NodeB sends HS-SCCH at every turn, can set the minimum threshold of HS-SCCH transmitted power, the transmitted power that is HS-SCCH is to be not less than this to follow the poor of a DPCH transmitted power and a preset value, for example: if follow the transmitted power of DPCH is M, and then the minimum threshold of the transmitted power of HS-SCCH is set to M-N.Wherein, N can provide by emulation for default fixed value.
For preventing to reduce owing to control frequency reduces the control precision that causes, for improving the control precision to HS-SCCH, NodeB can also carry out following processing after the transmitted power of HS-SCCH is adjusted:
When NodeB this scheduling UE and preceding once dispatch UE interval greater than a value that presets the time, then adopt the transmitted power of initial transmission power as this HS-SCCH.
By embodiment 1, the method that jointly controls the HS-SCCH transmitted power is specified, the present invention also provides a kind of method that the transmitted power of HS-SICH is jointly controlled, this method is similar to the method that transmitted power to HS-SCCH jointly controls, below in conjunction with embodiment 2, this method done specifying.
Fig. 3 is the method flow diagram that the HS-SICH ascending power is jointly controlled.As shown in Figure 3, for NodeB and UE can be jointly controlled the ascending power of HS-SICH, at first in step 301, need for each UE is that unit is provided with data structure with the carrier wave, rather than be that unit is provided with data structure to HS-SCCH/HS-SICH with each.
In step 302, when NodeB adopts UE of certain carrier dispatching, will from the HS-SCCH of its support, select this UE of scheduling.
In step 303, based on timing relationship, NodeB with the corresponding HS-SICH of the described HS-SCCH of step 302 in detect the feedback information of described UE, and measure the signal to noise ratio of this HS-SICH.
In step 304, the signal to noise ratio of the HS-SICH that NodeB will measure in step 303 compares with the HS-SICH signal to noise ratio that presets, and generates the uplink power control order.
In step 305, when NodeB adopted the described UE of described carrier dispatching once more, the uplink power control order that will generate in step 304 by HS-SCCH sent to described UE.
In step 306, the adjusted value of closed loop is a fiducial value before the UE, adjusts the transmitted power of HS-SICH according to the uplink power control order of NodeB transmission.
In step 307, based on timing relationship, UE by with step 305 in the corresponding HS-SICH of HS-SCCH to the NodeB feedback information, and on this HS-SICH, adopt regulated transmission power to send feedback information.
More particularly, be after unit is provided with data structure with the carrier wave, suppose that online HSDPA user has 5 simultaneously, be respectively UE1, UE2, UE3, UE4 and UE5, NodeB adopts 4 pairs of shared control channels in the carrier wave, be HS-SCCH1/HS-SICH1, HS-SCCH2/HS-SICH2, HS-SCCH3/HS-SICH3 and HS-SCCH4/HS-SICH4, dispatch described 5 UE.At this moment, when the 1st scheduling of NodeB UE1, may select the HS-SCCH1 of this carrier wave; Based on timing relationship, NodeB detects the UE1 feedack from HS-SICH1, and measures the signal to noise ratio of HS-SICH1; NodeB compares the signal to noise ratio of HS-SICH1 with the HS-SICH signal to noise ratio that presets, generate the uplink power control order; When the 2nd scheduling of NodeB UE1, may select the HS-SCCH3 of this carrier wave, NodeB sends to UE1 by HS-SCCH3 with described uplink power control order; The UE1 adjusted value of closed loop in the past is a fiducial value, adjusts the transmitted power of HS-SICH1 according to the uplink power control order of NodeB transmission; Based on timing relationship, when UE1 during to the NodeB feedback information, will adopt adjusted HS-SICH1 transmitted power to send feedback information by HS-SICH3 on HS-SICH3, thereby realize transmission power control to the HS-SICH of described carrier wave.
The above-mentioned explanation of just UE1 being carried out, also like this to UE2, UE3, UE4 and UE5, no longer repeat here to illustrate.
For preventing to reduce owing to control frequency reduces the control precision that causes, for improving the control precision to HS-SICH, UE can also carry out following processing after the transmitted power of HS-SICH is adjusted:
When UE this by a HS-SICH feedback information and a preceding feedback information interval greater than a value that presets the time, if also distributed the DPCH that follows of this UE on the carrier wave, and this follows DPCH and HS-SICH at identical ascending time slot, then adopts this to follow the transmitted power of the transmitted power of DPCH as this HS-SICH; Otherwise, adopt open-loop power control method to adjust the transmitted power of this HS-SICH.
By embodiment 2, the method that jointly controls the HS-SICH transmitted power is specified, the present invention also provides a kind of method that the HS-SICH uplink synchronous is jointly controlled, this method is similar to the method that the HS-SICH transmitted power is jointly controlled, below in conjunction with embodiment 3, this method done specifying.
Fig. 4 is the method flow diagram that the HS-SICH uplink synchronous is jointly controlled.As shown in Figure 4, can the uplink synchronous of HS-SICH be jointly controlled, at first in step 401, need, rather than be that unit is provided with data structure to HS-SCCH/HS-SICH with each for each UE is that unit is provided with data structure with the carrier wave for making UE.
In step 402, when NodeB adopts UE of certain carrier dispatching, will from the HS-SCCH that this carrier wave is supported, select this UE of scheduling.
In step 403, based on timing relationship, NodeB with the corresponding HS-SICH of the described HS-SCCH of step 402 in detect the feedback information of described UE, and measure the channel impulse response timing information of this HS-SICH.
In step 404, the channel impulse response timing information of the HS-SICH that NodeB will measure in step 403 compares with the target timing positional information that presets, and generates the uplink synchronous control command.
In step 405, when NodeB adopted the described UE of described carrier dispatching once more, the uplink synchronous control command that will generate in step 404 by HS-SCCH sent to described UE.
In step 406, the Timing Advance of HS-SICH feedback information is passed through in the uplink synchronous control command adjustment that UE sends according to NodeB.
In step 407, based on timing relationship, UE by with step 405 in the corresponding HS-SICH of HS-SCCH when the NodeB feedback information, will be according to the Timing Advance feedback information of adjusted HS-SICH.
More particularly, be after unit is provided with data structure with the carrier wave, suppose that online HSDPA user has 5 simultaneously, be respectively UE1, UE2, UE3, UE4 and UE5, NodeB adopts 4 pairs of shared control channels in the carrier wave, be HS-SCCH1/HS-SICH1, HS-SCCH2/HS-SICH2, HS-SCCH3/HS-SICH3 and HS-SCCH4/HS-SICH4, dispatch described 5 UE.At this moment, when the 1st scheduling of NodeB UE1, may select the HS-SCCH1 of this carrier wave; Based on timing relationship, NodeB detects the UE1 feedack from HS-SICH1, and measures the channel impulse response timing information of HS-SICH1; NodeB compares the channel impulse response timing information of HS-SICH1 with the target timing positional information that presets, generate the uplink synchronous control command; When the 2nd scheduling of NodeB UE1, may select the HS-SCCH3 of this carrier wave, NodeB sends to UE1 by HS-SCCH3 with described uplink synchronous control command; The Timing Advance of HS-SICH1 feedback information is passed through in the uplink synchronous control command adjustment that UE1 sends according to NodeB; Based on timing relationship, when UE1, will send feedback information according to amount pre-set time of described adjusted feedback information, thereby realize the uplink synchronous control to the HS-SICH of described carrier wave during to the NodeB feedback information by HS-SICH3 on HS-SICH3.
The above-mentioned explanation of just UE1 being carried out, also like this to UE2, UE3, UE4 and UE5, no longer repeat here to illustrate.
For preventing to reduce owing to control frequency reduces the control precision that causes, for improving the control precision to HS-SICH, UE can also carry out following processing after the transmitted power of HS-SICH is adjusted:
When UE this by a HS-SICH feedback information and a preceding feedback information interval greater than the value that presets the time, if also distributed the DPCH that follows of this UE on the carrier wave, then the Timing Advance value of this HS-SICH channel transmission is followed the transmitting time lead of DPCH for this.
Each HS-SCCH that said method all is based in the same carrier wave is configured in identical descending time slot, and each HS-SICH is configured in identical ascending time slot.If each HS-SCCH in the same carrier wave is configured in different descending time slots, each HS-SICH is configured in different ascending time slots, and method of the present invention is suitable equally, here no longer repeat specification.
Based on said method, the present invention also proposes the Combined Control Unit of corresponding HS-SCCH transmitted power and the Combined Control Unit of HS-SICH.
The Combined Control Unit of the transmitted power of described HS-SCCH as shown in Figure 5, comprising: data structure is provided with unit 51 and power adjustment unit 52.By data structure unit 51 being set can be that unit is provided with data structure with the carrier wave to UE.When the HS-SCCH in adopting carrier wave dispatches UE, will be by power adjustment unit 52, according to the transmitted power that once adjust described HS-SCCH before this UE by the descending power control command of the feedback of the HS-SICH in this carrier wave.
The Combined Control Unit of described HS-SCCH as shown in Figure 6, comprising: data structure is provided with unit 61 and jointly controls unit 62.By data structure unit 61 being set can carrier wave be that unit is provided with data structure.When UE during to the NodeB feedback information, will adjust described HS-SICH according to the upload control order that once sends by the HS-SCCH in this carrier wave before this NodeB by the HS-SICH in the carrier wave by jointly controlling unit 62.
In jointly controlling unit 62, comprise: power adjustment unit 621 and time adjustment unit 622.When the upload control order that once sends before the NodeB is the uplink power control order, will adjust the transmitted power of HS-SICH according to the uplink power control order that once sends before the NodeB by power adjustment unit 621; When the upload control order that once sends before the NodeB is the uplink synchronous control command, will be by time adjustment unit 622, according to the Timing Advance of the uplink synchronous control command adjustment that once sends before the NodeB by the HS-SICH feedback information.
Claims (16)
1. the combination control method of the transmitted power of shared control channel is characterized in that during a high speed downlink packet inserted, and comprising:
In base station node B, be that unit is provided with data structure with the carrier wave to each user equipment (UE), when the shared control channel HS-SCCH scheduling UE in the NodeB employing carrier wave, will be according to the transmitted power that once adjust described HS-SCCH before this UE by the descending power control command of the shared information channel HS-SICH feedback in this carrier wave;
Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
2. method according to claim 1 is characterized in that, described UE obtains the descending power control command by following step:
The signal to noise ratio of the HS-SCCH corresponding with described HS-SICH that described UE will measure compares with the HS-SCCH signal to noise ratio that presets, and generates the descending power control command.
3. method according to claim 1 is characterized in that, further comprises:
If on described carrier wave, distribute the following special physical channel DPCH of described UE, then NodeB this follow the difference of DPCH transmitted power and preset value to be set to the minimum threshold of the transmitted power of HS-SCCH.
4. method according to claim 1 is characterized in that, further comprises:
When NodeB adopt the described UE of the double scheduling of HS-SCCH in the described carrier wave interval greater than the value that presets the time, when dispatching described UE for the second time, adopt the transmitted power of initial transmission power as HS-SCCH.
5. share the combination control method of information channel during a high speed downlink packet inserts, it is characterized in that, comprising:
In UE, be that unit is provided with data structure, when UE during to the NodeB feedback information, will adjust described HS-SICH by the HS-SICH in the carrier wave according to the upload control order that once sends by the HS-SCCH in this carrier wave before this NodeB with the carrier wave;
Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
6. method according to claim 5 is characterized in that, described control command is the uplink power control order, and the transmitted power of described HS-SICH is adjusted in the uplink power control order that described UE once sends before according to described NodeB.
7. method according to claim 5 is characterized in that, described control command is the uplink synchronous control command, and the uplink synchronous control command adjustment that described UE once sends before according to described NodeB is by the Timing Advance of described HS-SICH feedback information.
8. method according to claim 6 is characterized in that, described NodeB obtains the uplink power control order by following step:
Described NodeB adopts the HS-SCCH in the described carrier wave to dispatch described UE;
Described NodeB will measure the signal to noise ratio with the corresponding HS-SICH of described HS-SCCH, and the signal to noise ratio of this HS-SICH of obtaining is compared with the HS-SICH signal to noise ratio that presets, and generate the uplink power control order.
9. method according to claim 7 is characterized in that, described NodeB obtains the uplink synchronous control command by following step:
Described NodeB adopts the HS-SCCH in the described carrier wave to dispatch described UE;
Described NodeB will measure the channel impulse response timing information with the corresponding HS-SICH of described HS-SCCH, the channel impulse response timing information of this HS-SICH of obtaining is compared with the target timing positional information that presets, generate the uplink synchronous control command.
10. method according to claim 6 is characterized in that, further comprises:
When described UE by the double feedback information of HS-SICH in the described carrier wave interval greater than the value that presets the time, if on described carrier wave, distribute the DPCH that follows of described UE, and the HS-SICH when this follows DPCH with feedback information for the second time is at identical ascending time slot, then for the second time during feedback information, adopt this to follow the transmitted power of DPCH transmitted power as HS-SICH; Otherwise, adopt open-loop power control method to adjust the transmitted power of this HS-SICH.
11. method according to claim 7 is characterized in that, further comprises:
When described UE by the double feedback information of HS-SICH in the described carrier wave interval greater than the value that presets the time, if on described carrier wave, distribute the DPCH that follows of described UE, then, adopt this to follow the Timing Advance of the transmitting time lead of DPCH as feedback information in second time during feedback information.
12. the Combined Control Unit of the transmitted power of shared control channel is characterized in that during a high speed downlink packet inserted, and comprising:
Data structure is provided with the unit, and being used for each UE is that unit is provided with data structure with the carrier wave;
Power adjustment unit is used for when adopting the HS-SCCH scheduling UE of carrier wave, will be according to the transmitted power of once adjusting described HS-SCCH before this UE by the descending power control command of the feedback of the HS-SICH in this carrier wave;
Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
13. share the Combined Control Unit of information channel during a high speed downlink packet inserts, it is characterized in that, comprising:
Data structure is provided with the unit, and being used for the carrier wave is that unit is provided with data structure;
Jointly control the unit, be used for to adjust described HS-SICH according to the upload control order that once sends before this NodeB by the HS-SCCH in this carrier wave as the HS-SICH of UE by carrier wave during to the NodeB feedback information;
Wherein, each HS-SCCH in the described carrier wave is at identical descending time slot, and each HS-SICH in the described carrier wave is at identical ascending time slot.
14. device according to claim 13 is characterized in that, described upload control order comprises uplink power control order and uplink synchronous control command.
15. device according to claim 14 is characterized in that, describedly jointly controls the unit and comprises:
Power adjustment unit is used for the transmitted power according to the uplink power control order adjustment HS-SICH that once sends before the NodeB.
16. device according to claim 14 is characterized in that, describedly jointly controls the unit and comprises:
The time adjustment unit is used for according to the Timing Advance of the uplink synchronous control command adjustment that once sends before the NodeB by the HS-SICH feedback information.
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| CN101656558B (en) * | 2008-08-20 | 2013-06-12 | 电信科学技术研究院 | Method and device for controlling power of control channel |
| CN101754339B (en) * | 2008-12-19 | 2012-02-01 | 电信科学技术研究院 | Power control method and device of high-speed shared indication channel |
| CN102026352B (en) * | 2009-09-22 | 2013-06-05 | 鼎桥通信技术有限公司 | Uplink united power control method and downlink united power control method in high speed packet access |
| EP2375850B1 (en) * | 2010-04-06 | 2016-09-07 | Alcatel Lucent | Controlling communications in a multi-carrier wireless communication system |
| CN102036354B (en) * | 2010-12-22 | 2014-01-01 | 大唐移动通信设备有限公司 | Method and device for allocating power to downlink control channel, and base station |
| CN103458488B (en) * | 2012-05-28 | 2017-07-14 | 展讯通信（上海）有限公司 | Method for controlling downlink power, device and mobile terminal |
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