CN101754338A - Power control method and system for base station, user equipment and uplink multi-carrier system - Google Patents
Power control method and system for base station, user equipment and uplink multi-carrier system Download PDFInfo
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- CN101754338A CN101754338A CN200810239056A CN200810239056A CN101754338A CN 101754338 A CN101754338 A CN 101754338A CN 200810239056 A CN200810239056 A CN 200810239056A CN 200810239056 A CN200810239056 A CN 200810239056A CN 101754338 A CN101754338 A CN 101754338A
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Abstract
The invention discloses a power control method and a system for a base station, an user equipment and an uplink multi-carrier system. The method includes that at least two transmitting power control commands are carried in at least a special downlink physical channel, the at least one special downlink psychical channel is loaded on at least a downlink carrier, the transmitting power control commands are used for instructing the user equipment to perform power control on a special uplink physical channel of an uplink carrier; and the transmitting power control commands are transmitted to the user equipment. By adopting the invention embodiment, the closed loop power control technology can be applied to uplink dual-carrier or multi-carrier situations.
Description
Technical field
The present invention relates to mobile communication technology, Poewr control method and system in particularly a kind of base station, subscriber equipment, the up multicarrier system.
Background technology
Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, hereinafter to be referred as WCDMA) system's employing wide-band spread spectrum technology, all signals are shared same frequency spectrum, each subscriber equipment (User Equipment, hereinafter to be referred as UE) signal energy be dispensed in the whole frequency band scope, the signal energy of UE just becomes broadband noise concerning other UE like this.If all UE are all with identical power emission in the sub-district, and the position of UE and base station distance is different, therefore the signal in the time of can causing UE near the base station to arrive the base station is stronger, signal when arriving the base station away from the UE of base station a little less than, because WCDMA is with the frequency receiving system, cause weak signal to be submerged in the strong signal, can't operate as normal thereby make apart from base station UE far away, " near-far interference " that exists in the WCDMA system that Here it is.Power control can overcome " near-far interference ", thereby the purpose of power control is at utmost to reduce transmitting power to increase power system capacity to reduce system interference under the prerequisite that guarantees quality of services for users, guarantees promptly that for uplink power control all signals arrive enough the getting final product of power of base station.One of method of power control is closed power control, be the signal interference ratio that is carried on the signal on the carrier wave (the Signal-to-Interference Radio that the recipient will receive, hereinafter to be referred as SIR) compare with the target signal interference ratio, send transmitting power control (Transmitted Power Control according to result relatively to transmit leg, hereinafter to be referred as TPC) order, order increases or reduces transmitting power to transmit leg according to TPC.
The inventor finds prior art in realizing process of the present invention there are the following problems at least: along with the development of technology, at the two carrier waves of up configuration or more during multicarrier, up multicarrier is carried out power control become problem anxious to be solved.
Summary of the invention
The present invention provides Poewr control method and system in a kind of base station, subscriber equipment, the up multicarrier system, in order to solve existing up pair of carrier wave or the problem of power control under the multicarrier scene more.
The embodiment of the invention provides Poewr control method in a kind of up multicarrier system, comprising:
At least two emissive power control commands are carried at least one downward special physical channel, described at least one downward special physical channel is carried at least one descending carrier, and described emissive power control command is used to indicate subscriber equipment that the uplink special physical channel of up-link carrier is carried out power control;
Described emissive power control command is sent to subscriber equipment.
The embodiment of the invention also provides Poewr control method in a kind of up multicarrier system, comprising:
Receive at least one downward special physical channel that the base station sends, described at least one downward special physical channel is carried at least one descending carrier, carries at least two emissive power control commands in described at least one downward special physical channel;
According to described at least two emissive power control commands the uplink special physical channel of up-link carrier is carried out power control.
The embodiment of the invention provides a kind of base station, comprising:
Add module, be used at least two emissive power control commands are carried at least one downward special physical channel, and described at least one downward special physical channel is carried at least one descending carrier, described emissive power control command is used to indicate subscriber equipment that the uplink special physical channel of up-link carrier is carried out power control;
Sending module is used for described emissive power control command is sent to subscriber equipment.
The embodiment of the invention provides a kind of subscriber equipment, comprising:
Receiver module, be used to receive at least one downward special physical channel that the base station sends, described at least one downward special physical channel is carried at least one descending carrier, carries at least two emissive power control commands in described at least one downward special physical channel;
Control module is used for according to described at least two emissive power control commands the uplink special physical channel of up-link carrier being carried out power control.
The embodiment of the invention provides power control system in a kind of up multicarrier system, comprising:
The base station, be used at least two emissive power control commands are carried at least one downward special physical channel, described at least one downward special physical channel is carried at least one descending carrier, and described emissive power control command is used to indicate subscriber equipment that the uplink special physical channel of up-link carrier is carried out power control;
Subscriber equipment is used to receive at least one downward special physical channel that described base station sends, and according to described at least two emissive power control commands the uplink special physical channel of up-link carrier is carried out power control.
As shown from the above technical solution, the embodiment of the invention sends to UE by at least two of generals' emissive power control command, the corresponding up-link carrier of each emissive power control command, can make UE know that the TPC at each up-link carrier orders, and then make UE according to the control of this TPC order carrying out power, realizes up pair of carrier wave or more under the multicarrier scene power of each up-link carrier is controlled.
Description of drawings
Fig. 1 is the schematic flow sheet of the inventive method embodiment one;
Fig. 2 is the schematic flow sheet of the inventive method embodiment two;
Fig. 3 is the structural representation of descending time slot and ascending time slot embodiment one among the inventive method embodiment;
Fig. 4 is the structural representation of descending time slot and ascending time slot embodiment two among the inventive method embodiment;
Fig. 5 is the schematic flow sheet of the inventive method embodiment three;
Fig. 6 is the structural representation of descending time slot and ascending time slot embodiment three among the inventive method embodiment;
Fig. 7 is the structural representation of descending time slot and ascending time slot embodiment four among the inventive method embodiment;
Fig. 8 is the structural representation of base station embodiment one of the present invention;
Fig. 9 is the structural representation of base station embodiment two of the present invention;
Figure 10 is the structural representation of subscriber equipment embodiment one of the present invention;
Figure 11 is the structural representation of subscriber equipment embodiment two of the present invention;
Figure 12 is the structural representation of system embodiment of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Along with the develop rapidly of the communication technology, WCDMA has obtained extensive studies and application in the world as one of mainstream technology of 3-G (Generation Three mobile communication system).In order to improve message transmission rate, satisfy different needs, introduced high-speed packet access (High Speed Packet Access among the WCDMA, hereinafter to be referred as HSPA) technology, the HSPA technology comprises that high speed downlink packet inserts (High SpeedDownlink Packet Access, hereinafter to be referred as HSDPA) technology and high speed uplink packet access (HighSpeed Uplink Packet Access is hereinafter to be referred as HSUPA) technology.
Get message transmission rate in order further to improve the HSPA system, reduce data transmission delay, on the HSPA system-based that is carried on the single frequency point, further introduce two carrier wave high speed downlink packet and inserted (Dual-Cell HSDPA, hereinafter to be referred as DC-HSDPA) technology, DC-HSPDA adopts descending two carrier waves, the uplink single-carrier configuration, UE can receive the data that two carrier waves send simultaneously, wherein the descending carrier that is associated with up-link carrier is called main carrier, be called service high-speed downlink shared channel sub-district (Serving High Speed Downlink Shared Channel Cell again, hereinafter to be referred as service HS-DSCH sub-district), the another one carrier wave is called auxilliary carrier wave, is called the second service HS-DSCH sub-district (SecondaryServing HS-DSCH Cell) again.The activation and the deexcitation of the two carrier modes of network controls, when two carrier mode deexcitations, UE receives only service HS-DSCH sub-district, and when two carrier modes activation, UE receives the service HS-DSCH sub-district and the second service HS-DSCH sub-district simultaneously.
Along with further developing of WCDMA technology, two ZAP will continue to strengthen, and promptly not only adopt descending pair of carrier wave, also may further introduce up pair of carrier wave to improve up message transmission rate.But because up pair of ZAP is emerging technology, some technology that are applied under the uplink single-carrier scene can not directly be moved in the up pair of ZAP.The present inventor finds this problem just, has proposed the solution at the power control techniques under up pair of carrier wave or the further up multicarrier scene.
In the embodiment of the invention, at least two transmitting power control TPC order is carried at least one downward special physical channel, this emissive power control command is used to indicate subscriber equipment that the uplink special physical channel of up-link carrier is carried out power control; Then this downward special physical channel is carried at least one descending carrier and sends to subscriber equipment.By this method, can make subscriber equipment realize the power of up a plurality of carrier waves is controlled.
Fig. 1 is the schematic flow sheet of the inventive method embodiment one, comprising:
Step 11: at least two TPC orders are carried at least one downward special physical channel, at least one downward special physical channel is carried at least one descending carrier, and the TPC order is used to indicate UE that the uplink special physical channel of up-link carrier is carried out power control.
With up pair of carrier wave is example, and two up-link carriers can be defined as first up-link carrier and second up-link carrier.Therefore, the TPC that two up-link carriers is carried out power control also needs two, can be defined as a TPC and the 2nd TPC.Suppose that UE adjusts the power of the uplink special physical channel of first up-link carrier according to a TPC, adjusts the power of the uplink special physical channel of second up-link carrier according to the 2nd TPC.The SIR of the uplink special physical channel that the process of a kind of power control can receive by up-link carrier for: base station measurement, and with predefined target SIR relatively; If the value of the SIR of the uplink special physical channel that receives is more than or equal to the value of target SIR, then the base station TPC indication UE that sends to UE reduces the transmitting power of corresponding uplink special physical channel, otherwise indication increases the transmitting power of corresponding uplink special physical channel.For example, the sir value of the signal of the uplink special physical channel on base station measurement first up-link carrier is greater than the value of target SIR, then base station the one TPC is set to 0, the sir value of the signal of the uplink special physical channel on base station measurement second up-link carrier is less than the value of target SIR, and then base station the 2nd TPC is set to 1; After UE receives a TPC and the 2nd TPC, just can according to predefined power control algorithm (as the value that preestablishes TPC be 0 o'clock be to reduce transmitting power, the value of TPC be 1 o'clock be to increase transmitting power), carry out power control.
Above-mentioned downward special physical channel can be DPCH (Dedicated PhysicalChannel is hereinafter to be referred as DPCH) or fractional dedicated physical channel (Fractional Dedicated PhysicalChannel is hereinafter to be referred as F-DPCH).Wherein, two TPC can be carried on one or two downward special physical channel of a descending carrier; Perhaps, be carried at respectively on the downward special physical channel of different descending carriers.With uplink and downlink be two carrier waves, TPC is carried among the F-DPCH is example, can a TPC and the 2nd TPC all be carried among the F-DPCH of first descending carrier; Perhaps, a TPC is carried among the F-DPCH of first descending carrier, and the 2nd TPC is carried among second descending carrier the 2nd F-DPCH; Perhaps, a TPC and the 2nd TPC are carried among the F-DPCH and the 2nd F-DPCH of first descending carrier.
Step 12: the base station sends to UE with above-mentioned TPC order.
To be two carrier waves be example with descending and up:
If a TPC and the 2nd TPC all are carried among the F-DPCH, a F-DPCH is carried on first descending carrier, and then UE can need not to monitor second descending carrier, only needs to monitor that first descending carrier to obtain TPC, helps saving the resource of UE.
If a TPC and the 2nd TPC are carried at respectively among a F-DPCH and the 2nd F-DPCH, and a F-DPCH and the 2nd F-DPCH all be carried on the same descending carrier, and then UE also only needs to monitor a descending carrier, so that the UE economize on electricity.
If a TPC and the 2nd TPC are carried at respectively among a F-DPCH and the 2nd F-DPCH, and a F-DPCH is carried on first descending carrier, the 2nd F-DPCH is carried on second descending carrier, then UE need monitor two descending carriers to obtain TPC, can keep compatible well with single carrier mode like this.
Present embodiment sends to UE by indicating the TPC that the power of uplink special physical channel is controlled, can expand present uplink single-carrier and use, and then make the power between base station and the UE control the scene that can be applied to up pair of carrier wave or up multicarrier.
Each following embodiment is at the specific descriptions of this embodiment under some scenes.Embodiment shown in Figure 2 is that two TPC are carried at respectively among two F-DPCH, and two F-DPCH are carried on the situation of two descending carriers respectively, and Fig. 5 is that two TPC all are carried on the situation among the same F-DPCH.
Fig. 2 is the schematic flow sheet of the inventive method embodiment two, and referring to Fig. 3 or Fig. 4, Fig. 3 is the structural representation of descending time slot and ascending time slot embodiment one among the inventive method embodiment, and Fig. 4 is the structural representation of descending time slot and ascending time slot embodiment two among the inventive method embodiment.As shown in Figure 2, Poewr control method comprises in a kind of up multicarrier system:
Step 201: the base station sends to UE with the F-DPCH configuration information of radio network controller (Radio Network Controller is hereinafter to be referred as RNC) configuration by information unit (Information Element is hereinafter to be referred as IE).The form of the IE of the F-DPCH configuration information correspondence of every wireless links (Radio Link is hereinafter to be referred as RL) (being Downlink F-DPCH info for each RL) can be as shown in table 1:
Table 1
| ??Information?Element/Group?name | ??Need | ??Multi | ??Type?and??reference | ??Semantics??description | ??Version |
| Primary CPICH usage for channel estimation (using Primary Common Pilot Channel to do channel estimating) | ??MP | ??Primary??CPICH??usage????for??channel??estimation??10.3.6.62 | ??REL-6 | ||
| F-DPCH frame offset (F-DPCH vertical shift) | ??MP | ??Integer??(0..38144??by?step?of??256) | ??Offset(in??number?of??chips)??between?the??beginning?of??the??P-CCPCH??frame?and??the??beginning?of??the?F-DPCH??fraame??This?is?called??τF-DPCH，n??in | ??REL-6 | |
| F-DPCH slot format (F-DPCH time slot format) | ??OP | ??Integer??(0..9by??steps?of?1) | ??Slot?format??used?by??F-DPCH?in??[26] | ??REL-7 | |
| Secondary CPICH info (secondary common pilot channel information) | ??OP | ??Secondary??CPICH??info | ??REL-6 | ||
| ??Information?Element/Group?name | ??Need | ??Multi | ??Type?and??reference | ??Semantics??description | ??Version |
| ??10.3.6.73 |
| ??Information?Element/Group?name | ??Need | ??Multi | ??Type?and??reference | ??Semantics??description | ??Version |
| Secondary scrambling code (auxilliary scrambler) | ??MD | ??Secondary??scrambling??code??10.3.6.74 | ??Default?is?the??same??scrambling??code?as?for??the?Primary??CPICH | ??REL-6 | |
| Code number (channel code) | ??MP | Integer (0..255) integer (0..255) | ??REL-6 | ||
| TPC combination index (TPC merges index) | ??MP | ??TPC??combinatio??nindex??10.3.6.85 | ??REL-6 | ||
| STTD indication (space time transmit diversity indication) | ??CV-No??HOtoU??TRAN | ??Enumerate??d??(true) | ??This?IE??shall?be?set??to?TRUE??when?STTD??is?used.??Absence?of??this?element??means?STTD??is?not?used. | ??REL-6 |
The element that this configuration information comprises is shown in first tabulation of table 1, wherein, vertical shift (F-DPCH frameoffset), time slot format (F-DPCH slot format) and channel code (Code number) are corresponding with F-DPCH, can be used to distinguish different F-DPCH channels.All the other contents are that those skilled in the art can be known, repeat no more.F-DPCH is carried on two descending carriers in the present embodiment, therefore needs the F-DPCH configuration information of two descending carriers of configuration.Be descending carrier during at least two, need at least two DPCH configuration informations of configuration, each DPCH configuration information is corresponding with a descending carrier, is used to indicate each TPC to order the mode of carrying on the descending carrier of correspondence.
Step 202: the base station is carried at two TPC respectively among two F-DPCH.
For example, a TPC is carried among the F-DPCH, the 2nd TPC is carried among the 2nd F-DPCH.The structure chart that carries the F-DPCH of TPC can be referring to Fig. 3 or Fig. 4, and the base station is carried at TPC the network side F-DPCH that obtains behind the F-DPCH among Fig. 3,4.Only show situation among Fig. 3,4 at a TPC, identical at the situation principle of another TPC.The difference of Fig. 3 and Fig. 4 be time slot starting end among TPC order and the F-DPCH apart from N
OffiDifference is worked as N
OffiDuring=0 or 2 bits (situation of Fig. 3), the TPC of F-DPCH current time slots order is used to control the transmitting power control of the DPCCH current time slots corresponding with it; Work as N
Ofi＞2 o'clock (situation of Fig. 4), the TPC order of F-DPCH current time slots is used to control the transmitting power control of DPCCH next time slot corresponding with it.The arrow (arrow 31 and arrow 41) that characterizes power control in following being used to can be explained this time slot relation visually.
Step 203: the base station is carried on two F-DPCH on two descending carriers.
For example, a F-DPCH is carried on the first service HS-DSCH sub-district, the 2nd F-DPCH is carried on the second service HS-DSCH sub-district.
Step 204: the base station sends to UE by descending carrier with F-DPCH.Be that UE receives this F-DPCH after certain propagation delay time, an example of the structure chart of this F-DPCH can be referring to the end side F-DPCH of Fig. 3 or 4.
Step 205:UE adjusts the transmitting power of the uplink special physical channel of corresponding up-link carrier according to the TPC among the F-DPCH that receives.
For example, when the value of TPC is 1, the transmitting power of the uplink special physical channel of the up-link carrier of increase TPC correspondence.Referring to Fig. 3,4, UE adjusts transmitting power (referring to the arrow among Fig. 3 31, the arrow 41 among Fig. 4) according to the TPC that carries among the end side F-DPCH.
To 205, can realize control by step 201 to the transmitting power of the uplink special physical channel of up-link carrier.Further, can also comprise:
Step 206:UE measures the SIR (descending sir measurement value) of the signal that receives from descending carrier, and compare with predefined target SIR, obtain up channel, Dedicated Physical Control Channel (Dedicated Physical Control Channel for example, hereinafter to be referred as DPCCH), in the value (referring to the arrow among Fig. 3 32, the arrow 42 among Fig. 4) of TPC.For example, SIR is during more than or equal to target SIR, show and to reduce SIR, promptly need to reduce the transmitting power of F-DPCH, the value that therefore can obtain TPC is 0, and SIR is during less than target SIR, show that needs increase SIR, promptly need to increase the transmitting power of F-DPCH, the value that therefore can obtain TPC is 1 (reduce power with 0 expression, it is example that 1 expression increases power).DPCCH is used for up a kind of DPCH in the WCDMA system, referring to Fig. 3,4, its time slot format comprise pilot tone (Pilot) partly, transformat combination indication (Transport FormatCombination Indicator is hereinafter to be referred as TFCI) part and TPC partly etc.To be used to indicate UE to carry out at the power control of the DPCCH of up-link carrier similar with TPC among the descending F-DPCH, and the TPC among the up DPCCH is used to indicate the base station to carry out the power control of the downward special physical channel (for example F-DPCH) at descending carrier.Among Fig. 3,4, only show the DPCCH (end side DPCCH) of a corresponding TPC, another DPCCH is identical with composition and the acquisition process of this DPCCH.
Above-mentioned steps 205,206 does not have sequential front and back restriction relation.
Step 207:UE is carried on DPCCH and sends to the base station in the up-link carrier.Among Fig. 3,4, end side DPCCH sends to base station (network side DPCCH) through certain propagation delay time.
Step 208: the principle of carrying out with UE is identical, and the transmitting power (referring to the arrow among Fig. 3 33, the arrow 43 among Fig. 4) of the downward special physical channel of corresponding descending carrier is adjusted in the base station according to the TPC among the DPCCH.
Step 209: the SIR of uplink special physical channel in the base station measurement up-link carrier, and compare with target SIR, obtain the TPC value (referring to the arrow among Fig. 3 34, the arrow 44 among Fig. 4) among the corresponding F-DPCH.
Above-mentioned steps 208,209 does not have sequential front and back restriction relation.
Afterwards, above-mentioned steps 202-209 is carried out in circulation, can form closed power control (transmitting power according to the TPC value adjustment self of opposite end obtains being used to indicate the opposite end to carry out the TPC that power is controlled according to the SIR that measures) between base station and UE.
Above-mentioned flow process is sent as example with a TPC on a carrier wave, identical with this TPC corresponding to the handling process of the TPC of another up-link carrier.Certainly, the base station need dispose two IE, such as one be " DownlinkF-DPCH info for each RL ", another is at another up-link carrier " Downlink F-DPCH info for secondary E-DCH cell for each RL ".
The F-DPCH that carries the TPC of the uplink special physical channel that is used for controlling different up-link carriers in the present embodiment is carried on different descending carriers, can realize that not only the closed power control procedure of every pair of up-downgoing carrier wave of up a plurality of carrier waves can keep identical with single carrier mode compatible well.
In the present embodiment, the vertical shift of the F-DPCH of two descending carriers can be identical, timing relationship with the DPCH that guarantees two up-link carriers is consistent, can simplify timing relationship and reduce the complexity of scheduling, improves the discontinuous gain that brings that transmits and receives.Therefore, can not comprise the F-DPCH frame offset information among the IE " Downlink F-DPCH info for secondary E-DCH cell for each RL " at another up-link carrier.
Fig. 5 is the schematic flow sheet of the inventive method embodiment three, and referring to Fig. 6, and Fig. 6 is the structural representation of descending time slot and ascending time slot embodiment three among the inventive method embodiment.The difference of present embodiment and embodiment two is that two F-DPCH of embodiment two are carried on respectively on two descending carriers, and two F-DPCH of present embodiment are carried on the same descending carrier.The method of present embodiment comprises:
Step 501: the base station sends to UE with the F-DPCH configuration information of RNC configuration by IE.Different with embodiment two is, present embodiment is carried on the descending carrier owing to two F-DPCH, only need F-DPCH configuration information IE of configuration, but owing to will distinguish different TPC, therefore need the F-DPCH configuration information IE shown in the his-and-hers watches 1 to expand, increase by one group of sub-configuration information (comprising vertical shift, time slot format and channel code), the form of the IE of present embodiment can be as shown in table 2:
Table 2
| ??Information?Element/Group?name | ??Need | ??Multi | ??Type?and??reference | ??Semantics??description | ??Version |
| Primary CPICH usage for channel estimation (using Primary Common Pilot Channel to do channel estimating) | ??MP | ??Primary??CPICH??usage?for??channel??estimation??10.3.6.62 | ??REL-6 | ||
| F-DPCH frame offset (F-DPCH vertical shift) | ??MP | ??Integer??(0..38144??by?step?of??256) | ??Offset(in??number?of??chips)??between?the??beginning?of | ??REL-6 | |
| ??Information?Element/Group?name | ??Need | ??Multi | ??Type?and??reference | ??Semantics??description | ??Version |
| ??Information?Element/Group?name | ??Need | ??Multi | ??Type?and??reference | ??Semantics??description | ??Version |
| ??the??P-CCPCH??frame?and??the??beginning?of??the?F-DPCH??frame??This?is?called??τF-DPCH，n??in[26] | |||||
| F-DPCH frame offset for secondary E-DCH cell (second F-DPCH vertical shift) | ??OP | ??Integer??(0..9by??steps?of?1) | ??Slot?format??used?by??F-DPCH?in??[26] | ??REL-7 | |
| F-DPCH slot format for secondary E-DCH cell (second F-DPCH time slot format) | ??OP | ??Integer??(0..9by??steps?of?1) | ??Slotformat??used?by??F-DPCH?in??[26] | ??REL-8 | |
| Secondary CPICH info (secondary common pilot channel information) | ??OP | ??Secondary??CPICH??info??10.3.6.73 | ??REL-6 | ||
| Secondary scrambling code (auxilliary scrambler) | ??MD | ??Secondary??scrambling??code??10.3.6.74 | ??Default?is?the??same??scrambling??code?as?for??the?Primary??CPICH | ??REL-6 | |
| Code number (channel code) | ??MP | ??Integer??(0..255) | ??REL-6 | ||
| Code number for secondary E-DCH cell (second channel code) | ??MP | ??Integer??(0..255) | ??REL-8 | ||
| TPC combination index (TPC merges index) | ??MP | ??TPC??combinatio??n?index??10.3.6.85 | ??REL-6 |
| ??Information?Element/Group?name | ??Need | ??Multi | ??Type?and??reference | ??Semantics??description | ??Version |
| STTD indication (space time transmit diversity indication) | ??CV-??NoH??Oto??UTR??AN | ??Enumerate??d??(true) | ??This?IE?shall??be?set?to??TRUE?when??STTD?is??used.??Absence?of??this?element??means?STTD??isnotused. | ??REL-6 |
The composition of each parameter and definition can be referring to the explanations of his-and-hers watches 1 in the table 2.
Wherein, two TPC in the present embodiment can be carried on the F-DPCH, therefore, two vertical shifts (frame offset) among the above-mentioned IE are corresponding identical respectively with channel code (Code number), can distinguish different TPC by the difference of two time slot formats (F-DPCH slot format).
Perhaps, two TPC in the present embodiment also can be carried on two F-DPCH, and two F-DPCH all are carried on the same descending carrier.At this moment, the time slot format that carries a TPC among each F-DPCH can be referring to embodiment two, but because two F-DPCH all carry on the same descending carrier, do not need as embodiment two, to dispose two IE, only need IE of configuration as shown in table 2, increase by one group of subchannel arrangements information (comprising vertical shift, time slot format and channel code).Because two TPC are carried among the different F-DPCH, therefore, two channel codes in the table 2 are different, two time slot formats can be identical can be different, two vertical shifts can be identical can be different.Be that descending carrier is when being one, need DPCH configuration information of configuration, carry the sub-configuration information of at least two groups in the described DPCH configuration information, every group of sub-configuration information is corresponding with a TPC order, is used to indicate the carry mode of this TPC order on a described descending carrier.
Step 502: the base station is carried at two TPC among the same F-DPCH.Referring to Fig. 6, a TPC and the 2nd TPC all are carried among the network side F-DPCH (suppose that a TPC and time slot begin apart from N
OffiLess than 2 bits, the 2nd TPC and time slot begin apart from N
OffiGreater than 2 bits).
Step 503: the base station is carried on this F-DPCH that carries two TPC on the descending carrier.For example, this F-DPCH is carried on the service HS-DSCH sub-district or is carried on second and serve on the HS-DSCH sub-district.
Step 504: the base station sends to UE by descending carrier with F-DPCH.Be that UE receives this F-DPCH after certain propagation delay time, an example of the structure of this F-DPCH can be referring to the end side F-DPCH of Fig. 6.
Step 505:UE is according to the transmitting power of the uplink special physical channel of the corresponding up-link carrier of value adjustment of TPC.
For example, when the value of TPC is 1, the transmitting power of the uplink special physical channel of the up-link carrier of increase TPC correspondence.Referring to Fig. 6, UE adjusts the transmitting power (referring to the arrow among Fig. 6 61) of the uplink special physical channel of first up-link carrier according to a TPC who carries among the end side F-DPCH; Adjust the transmitting power (referring to the arrow among Fig. 6 65) of the uplink special physical channel of second up-link carrier according to the 2nd TPC that carries among the end side F-DPCH.
To 505, can realize control by step 501 to the transmitting power of the uplink special physical channel of up-link carrier.Further, can also comprise:
Step 506:UE measures the SIR (descending sir measurement value) of the downward special physical channel that receives from descending carrier, and compare with predefined target SIR, obtain the value of the TPC among the DPCCH, promptly obtain TPC value (referring to the arrow among Fig. 6 62) among the DPCCH and the TPC value (referring to the arrow among Fig. 6 66) among the 2nd DPCCH.
Above-mentioned steps 505,506 does not have sequential front and back restriction relation.
Step 507:UE is carried on two DPCCH in the different up-link carriers and sends to the base station.For example, a DPCCH is carried on first up-link carrier, the 2nd DPCCH is carried on second up-link carrier.Among Fig. 6, end side DPCCH sends to base station (network side DPCCH) through certain propagation delay time.
Step 508: the principle of carrying out with UE is identical, and the transmitting power (referring to the arrow among Fig. 6 63) of the downward special physical channel (this channel includes only TPC) of first descending carrier is adjusted in the base station according to the TPC among end side the one DPCCH.
Step 509: the transmitting power (referring to the arrow among Fig. 6 67) of the downward special physical channel (this channel includes only TPC) of second descending carrier is adjusted in the base station according to the TPC among end side the 2nd DPCCH.
Step 510: the SIR of signal in the base station measurement up-link carrier, and compare with target SIR, obtain the TPC value (referring to arrow among Fig. 6 64 and arrow 68) among the corresponding F-DPCH.
Above-mentioned steps 508,509,510 does not have sequential front and back restriction relation.
Afterwards, above-mentioned steps 502-510 is carried out in circulation, can form closed power control (transmitting power according to the TPC value adjustment self of opposite end obtains being used to indicate the opposite end to carry out the TPC that power is controlled according to the SIR that measures) between base station and UE.
In the foregoing description, the base station is adjusted the transmitting power of first descending carrier and second descending carrier respectively according to the TPC among two DPCCH.Because F-DPCH is carried on the descending carrier, so first descending carrier in the present embodiment and second descending carrier be actually same descending carrier, that is: the descending carrier of carrying F-DPCH.At this moment, only need once power adjustment, that is: only carry out one in the step 508,509 F-DPCH of descending carrier; In other words, the power of the F-DPCH of a descending carrier is adjusted in the base station according to the TPC among TPC among the DPCCH or the 2nd DPCCH.Further, according to this principle, because the TPC of power controlling adjustment is redundant, therefore, adopt and carry a TPC among the DPCCH and get final product, can not carry TPC among another DPCCH, perhaps partly carry other content with TPC, for example, TPC partly carried invalid information, carry DTX information or other control informations.Referring to Fig. 7, Fig. 7 is the structural representation of descending time slot and ascending time slot embodiment four among the inventive method embodiment, mark 71-76 wherein, 78 corresponding identical with the mark 61-66 of Fig. 6,68 implication, be owing to need TPC order in the up-link carrier with the difference of Fig. 6, therefore, the step of descending carrier power is adjusted in TPC order among Fig. 7 among the 2nd DPCCH of no use, does not promptly have the step shown in the arrow 67 among Fig. 6.Be among Fig. 7 among the DPCCH and carry TPC, the TPC among another DPCCH is partly as keeping position (control information that can idle also can carry other).
In the present embodiment, the vertical shift of two F-DPCH can be identical, timing relationship with the DPCH that guarantees two up-link carriers is consistent, can simplify timing relationship and reduce the complexity of scheduling, improves the discontinuous gain that brings that transmits and receives.Therefore, can not comprise the F-DPCH frame offset information in one group of subchannel arrangements information that IE increases.
The F-DPCH that present embodiment carries TPC is carried on the same descending carrier, can make UE only monitor a carrier wave, helps the economize on electricity of UE.
Above-mentioned is example with up pair of carrier wave, also can be applied to up multicarrier.Promptly be used for indicating the TPC that up-link carrier is carried out power control to be carried at down channel (as F-DPCH), the F-DPCH that carries TPC can be carried on the descending carrier, also can be carried on the different descending carriers the corresponding IE of quantity base station configuration of corresponding up-link carrier.Different TPC can be carried among the F-DPCH, and at this moment, the time slot format that comprises among the IE of base station configuration is different; Also can be configured among the different F-DPCH of a descending carrier, at this moment, the channel code that comprises among the IE of base station configuration is different.Above-mentioned analyzed descending, for up, if all F-DPCH are carried in the descending carrier, because the power of the F-DPCH of a carrier wave only need be controlled in the base station, therefore, only need the TPC in the up channel (as DPCCH), therefore, in DPCCH of up need, carry TPC, carried the control information that the part of TPC can idle also can be carried other among other the DPCCH originally.
And the embodiment of the invention can also provide a kind of new DPCCH time slot format, does not comprise the TPC order in this DPCCH time slot format.For example, include only pilot tone in this DPCCH time slot format, perhaps include only pilot tone and TFCI, perhaps have other the time slot format that does not comprise the TPC order.This DPCCH time slot format can be referring to the time slot format of the 2nd DPCCH among Fig. 7.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 8 is the structural representation of base station embodiment one of the present invention, comprises adding module 81 and sending module 82.Add module 81 and be used for the TPC order of at least two corresponding up-link carriers is carried at least one downward special physical channel, and at least one downward special physical channel is carried at least one descending carrier; Sending module 82 is used for the TPC order that is carried at least one downward special physical channel that is carried at least one descending carrier that interpolation module 81 obtains is sent to UE.
Concrete, adding module 81 and be used for described TPC order all is carried at a downward special physical channel, the above-mentioned downward special physical channel that sending module 82 is used for carrying all TPC orders is carried on a descending carrier.Perhaps, adding module 81 is used for described TPC order is carried at different downward special physical channels respectively; At this moment, sending module 82 can be used for described different downward special physical channel all is carried on a descending carrier, and perhaps, sending module 82 also can be used for described different downward special physical channel is carried on different descending carriers respectively.
Present embodiment sends to UE by the TPC that will be used to indicate uplink special physical channel to each up-link carrier to carry out power control, can expand present uplink single-carrier uses, and then be implemented under the scene of up pair of carrier wave or up multicarrier, UE is to the power control of the uplink special physical channel of each up-link carrier.
Fig. 9 is the structural representation of base station embodiment two of the present invention, comprises and adds module 91 and sending module 92, also comprises single channel configuration module 93 or multichannel configuration module 94.Wherein, add module 91 and sending module 92 and can realize the interpolation module 81 among the embodiment 8 and the function of sending module 82, all right:
Be carried on the scene of a descending carrier for DPCH, present embodiment can further include single channel configuration module 93, link to each other with interpolation module 91, be used to dispose a DPCH configuration information, carry the sub-configuration information of at least two groups in the described DPCH configuration information, sub-configuration information comprises vertical shift, time slot format and channel code, every group of corresponding TPC order of sub-configuration information, to distinguish different the carry mode of TPC order on a descending carrier, by each sub-configuration information, same descending carrier can carry a plurality of TPC orders to avoid each TPC command collision; Interpolation module 91 is carried at different TPC orders in the downward special physical channel according to the configuration information of single channel configuration module 93, and finally is carried on the descending carrier.
Be carried on the scene of different descending carriers for DPCH, present embodiment can further include multichannel configuration module 94, link to each other with interpolation module 91, be used at least two DPCH configuration informations of configuration, each DPCH configuration information is corresponding with a descending carrier, interpolation module 91 is carried at different TPC orders in the downward special physical channel according to the configuration information of multichannel configuration module 94, and finally is carried on the different descending carriers.
Present embodiment can dispose different configuration informations according to the difference of descending carrier quantity, realizes more effectively being applied to different scenes.
Figure 10 comprises receiver module 101 and control module 102 for the structural representation of subscriber equipment embodiment one of the present invention.Receiver module 101 is used to receive at least one downward special physical channel that the base station sends, and described at least one downward special physical channel is carried at least one descending carrier, carries at least two TPC orders in described at least one downward special physical channel; Control module 102 is used for ordering the uplink special physical channel to corresponding up-link carrier to carry out power control according to described at least two TPC that receiver module 101 receives.
Present embodiment is used to indicate the TPC that the uplink special physical channel of up-link carrier is carried out power control by reception, and this TPC order is at least two, can expand present uplink single-carrier and use, and is applicable to the scene of up pair of carrier wave or up multicarrier.
Figure 11 comprises receiver module 111, control module 112 for the structural representation of subscriber equipment embodiment two of the present invention, also comprises sending module 113.Receiver module 111 is used to receive at least one downward special physical channel that is carried on the descending carrier, carry at least two in the described downward special physical channel when being used to indicate UE to carry out TPC order that power adjusts, sending module 113 is used for obtaining being used to indicate the base station to carry out the TPC order of power control according to the SIR of the signal on the descending carrier that receives, and at least two uplink special physical channels are carried on respectively send to the base station in the up-link carrier, in the described uplink special physical channel one carries and above-mentionedly is used to indicate the base station to carry out the TPC order that power is adjusted, and the TPC part in remaining uplink special physical channel can also can be carried remaining control information the free time.Control module 112 is used for ordering the uplink special physical channel to corresponding up-link carrier to carry out power control according to described at least two TPC that receiver module 101 receives.
Present embodiment is used to indicate the TPC that the uplink special physical channel of up-link carrier is carried out power control by reception, can expand present uplink single-carrier uses, and then make the closed power between base station and the UE control the scene that can be applied to up pair of carrier wave or up multicarrier, and, present embodiment is carried on a situation on the descending carrier at different downward special physical channels especially, can when up, only need to carry TPC in a uplink special physical channel, TPC part free time in remaining uplink special physical channel or the control information of carrying other can be saved signal resource and the new application of expansion.
Figure 12 comprises base station 121 and UE122 for the structural representation of system embodiment of the present invention.Base station 121 is used at least two TPC orders are carried at downward special physical channel, sends described downward special physical channel to UE122; UE122 is used for according to the described TPC order that base station 121 sends corresponding up-link carrier being carried out power control.Wherein, at least two TPC orders can all be carried in the downward special physical channel, perhaps, at least two TPC orders can be carried in the different downward special physical channels, these different downward special physical channels can be carried on the same descending carrier, perhaps, at least two TPC orders can be carried in the different downward special physical channels, and these different downward special physical channels can be carried on respectively on the different descending carriers.
Further in order to realize closed power control, the TPC order that UE122 also is used for being used to indicating described base station 121 to carry out power control is carried at uplink special physical channel and sends to described base station 121, and described uplink special physical channel is at least two; Described base station 121 also is used for according to the TPC order of described uplink special physical channel the corresponding downstream carrier wave being carried out power control.
Wherein, when if base station 121 is used for described downward special physical channel is carried at a descending carrier and sends to UE122, UE122 can be used for carrying TPC order at a uplink special physical channel, and the part of the TPC in other the uplink special physical channel can be idle or be carried other control informations.
Present embodiment sends to UE by the TPC that the base station will be used to indicate uplink special physical channel to up-link carrier to carry out power control, can expand present uplink single-carrier uses, and then make the closed power between base station and the UE control the scene that can be applied to up pair of carrier wave or up multicarrier, and, present embodiment can be carried on a situation on the descending carrier at different downward special physical channels, can when up, only need to carry TPC in a uplink special physical channel, TPC part free time in remaining uplink special physical channel or the control information of carrying other can be saved signal resource and the new application of expansion.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (23)
1. Poewr control method in the up multicarrier system is characterized in that, comprising:
At least two emissive power control commands are carried at least one downward special physical channel, described at least one downward special physical channel is carried at least one descending carrier, and described emissive power control command is used to indicate subscriber equipment that the uplink special physical channel of up-link carrier is carried out power control;
Described emissive power control command is sent to subscriber equipment.
2. method according to claim 1 is characterized in that,
Described at least two emissive power control commands are carried at least one downward special physical channel comprises: described at least two emissive power control commands all are carried in the downward special physical channel;
Described described at least one downward special physical channel is carried at least one descending carrier comprises: the downward special physical channel that will carry all emissive power control commands is carried on the descending carrier.
3. method according to claim 1, it is characterized in that described at least two emissive power control commands are carried at least one downward special physical channel comprises: described emissive power control command is carried at respectively in the different downward special physical channels.
4. method according to claim 3 is characterized in that, described described at least one downward special physical channel is carried at least one descending carrier comprises: described different downward special physical channel all is carried on the descending carrier.
5. method according to claim 3 is characterized in that, described described at least one downward special physical channel is carried at least one descending carrier comprises: described different downward special physical channel is carried on respectively on the different descending carriers.
6. according to claim 2 or 4 described methods, it is characterized in that, also comprise: dispose a DPCH configuration information, carry the sub-configuration information of at least two groups in the described DPCH configuration information, every group of sub-configuration information is corresponding with an emissive power control command, is used to indicate the carry mode of this emissive power control command on a described descending carrier.
7. method according to claim 6 is characterized in that: the configure dedicated physical channel configuration information comprises: be the identical vertical shift of each downward special physical channel configuration.
8. method according to claim 5, it is characterized in that, also comprise: dispose at least two DPCH configuration informations, each DPCH configuration information is corresponding with a descending carrier, is used to indicate the carry mode of each emissive power control command on the descending carrier of correspondence.
9. method according to claim 8 is characterized in that: the configure dedicated physical channel configuration information comprises: be the identical vertical shift of each downward special physical channel configuration.
10. Poewr control method in the up multicarrier system is characterized in that, comprising:
Receive at least one downward special physical channel that the base station sends, described at least one downward special physical channel is carried at least one descending carrier, carries at least two emissive power control commands in described at least one downward special physical channel;
According to described at least two emissive power control commands the uplink special physical channel of up-link carrier is carried out power control.
11. method according to claim 10 is characterized in that:
At least one downward special physical channel that described reception base station sends is specially: receive at least one DPCH that the base station sends, described at least one DPCH is carried in the descending carrier;
Described method also comprises: at least two uplink special physical channels are carried on respectively send to the base station in the up-link carrier, in the described uplink special physical channel one carries and is used to indicate the base station to carry out the emissive power control command that power is adjusted.
12. a base station is characterized in that, comprising:
Add module, be used at least two emissive power control commands are carried at least one downward special physical channel, and described at least one downward special physical channel is carried at least one descending carrier, described emissive power control command is used to indicate subscriber equipment that the uplink special physical channel of up-link carrier is carried out power control;
Sending module is used for described emissive power control command is sent to subscriber equipment
13. base station according to claim 12 is characterized in that:
Described interpolation module specifically is used for described emissive power control command all is carried at a downward special physical channel;
The downward special physical channel that described sending module specifically is used for carrying all emissive power control commands is carried on a descending carrier.
14. base station according to claim 12 is characterized in that, described interpolation module specifically is used for described emissive power control command is carried at different downward special physical channels respectively.
15. base station according to claim 14 is characterized in that, described sending module specifically is used for described different downward special physical channel all is carried on a descending carrier.
16. base station according to claim 14 is characterized in that, described sending module specifically is used for described different downward special physical channel is carried on different descending carriers respectively.
17. according to claim 13 or 15 described base stations, it is characterized in that, also comprise:
The single channel configuration module is used to dispose a DPCH configuration information, carries the sub-configuration information of at least two groups in the described DPCH configuration information, and every group of sub-configuration information is corresponding with an emissive power control command;
Described interpolation module is carried at described emissive power control command on the descending carrier according to described DPCH configuration information.
18. base station according to claim 16 is characterized in that, also comprises:
The multichannel configuration module is used at least two DPCH configuration informations of configuration, and each DPCH configuration information is corresponding with a descending carrier;
Described interpolation module is carried at described emissive power control command on the descending carrier according to described DPCH configuration information.
19. a subscriber equipment is characterized in that, comprising:
Receiver module, be used to receive at least one downward special physical channel that the base station sends, described at least one downward special physical channel is carried at least one descending carrier, carries at least two emissive power control commands in described at least one downward special physical channel;
Control module is used for according to described at least two emissive power control commands the uplink special physical channel of up-link carrier being carried out power control.
20. subscriber equipment according to claim 19 is characterized in that:
Described receiver module specifically is used to receive the descending carrier that the base station sends;
Described subscriber equipment also comprises sending module, be used for that at least two uplink special physical channels are carried on up-link carrier respectively and send to the base station, in the described uplink special physical channel one carries and is used to indicate the base station to carry out the emissive power control command that power is adjusted.
21. power control system in the up multicarrier system is characterized in that, comprising:
The base station, be used at least two emissive power control commands are carried at least one downward special physical channel, described at least one downward special physical channel is carried at least one descending carrier, and described emissive power control command is used to indicate subscriber equipment that the uplink special physical channel of up-link carrier is carried out power control;
Subscriber equipment is used to receive at least one downward special physical channel that described base station sends, and according to described at least two emissive power control commands the uplink special physical channel of up-link carrier is carried out power control.
22. system according to claim 21 is characterized in that:
Described subscriber equipment also is used for sending at least two uplink special physical channels to described base station, carries the emissive power control command that power control is carried out in the described base station of indication in the described DPCH;
Described base station also is used for the emissive power control command that carries according to described uplink special physical channel the downward special physical channel of descending carrier is carried out power control.
23. system according to claim 22 is characterized in that:
Described base station is used for that specifically described downward special physical channel is carried at a descending carrier and sends to described subscriber equipment;
Described subscriber equipment specifically is used for carrying emissive power control command at a described uplink special physical channel.
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| CN200810239056A CN101754338A (en) | 2008-12-05 | 2008-12-05 | Power control method and system for base station, user equipment and uplink multi-carrier system |
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| WO2014161158A1 (en) * | 2013-04-02 | 2014-10-09 | 华为技术有限公司 | Channel configuration method, device and system |
| WO2015127628A1 (en) * | 2014-02-27 | 2015-09-03 | 华为技术有限公司 | User equipment, network side equipment and dpcch transmission method |
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| WO2021147776A1 (en) * | 2020-01-23 | 2021-07-29 | Qualcomm Incorporated | Transmission power control command for a group of cells |
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| CN107105490A (en) * | 2010-11-09 | 2017-08-29 | 瑞典爱立信有限公司 | Using the Power Control of the ACK/NACK forms of carrier aggregation |
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| CN103945353A (en) * | 2013-01-22 | 2014-07-23 | 华为技术有限公司 | Signaling method, user equipment and base station |
| WO2014161158A1 (en) * | 2013-04-02 | 2014-10-09 | 华为技术有限公司 | Channel configuration method, device and system |
| CN104303560A (en) * | 2013-04-02 | 2015-01-21 | 华为技术有限公司 | Channel configuration method, device and system |
| EP2950594A4 (en) * | 2013-04-02 | 2016-03-02 | Huawei Tech Co Ltd | Channel configuration method, device and system |
| US10194460B2 (en) | 2014-02-27 | 2019-01-29 | Huawei Technologies Co., Ltd. | User equipment, network side device, and method for sending DPCCH |
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| CN108632970A (en) * | 2017-03-24 | 2018-10-09 | 华为技术有限公司 | Poewr control method, terminal and the network equipment |
| CN108632970B (en) * | 2017-03-24 | 2021-02-09 | 华为技术有限公司 | Power control method, terminal and network equipment |
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