Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, particularly solves the problem of multicarrier HUSPA power control.
For achieving the above object, one aspect of the present invention proposes a kind of multi-carrier high-speed uplink packet access HSUPA Poewr control method, may further comprise the steps: base station and user equipment (UE) receive respectively the power contorl parameters group that network side issues by high-level signaling, wherein, the carrier level power contorl parameters that comprises all carrier waves in the described multi-carrier HSUPA in the described power contorl parameters group, and each carrier level power contorl parameters is indicated the frequency sign of corresponding carrier wave; Described base station and UE carry out outer sub-carrier ring power control to each carrier wave in the described multi-carrier HSUPA respectively according to described power contorl parameters group.
As one embodiment of the present of invention, described carrier level power contorl parameters comprises code check and the mapping relations of signal to noise ratio and the frequency sign of corresponding carrier wave that radio network controller (RNC) sends.
As one embodiment of the present of invention, described base station and UE receive respectively network side and comprise by the power contorl parameters group that high-level signaling issues: the power contorl parameters group that the NBAP/RNSAP signaling of described RNC by the Iub/Iur interface will include the carrier level power contorl parameters of each carrier wave sends to described base station; And the power contorl parameters group that the RRC signaling of described RNC by the Uu interface will include the carrier level power contorl parameters of each carrier wave sends to described UE.
As one embodiment of the present of invention, system is synchronous code division multiple access TD-SCDMA system or broadband demal multiplex (MUX) access WCDMA system of time-division.
As one embodiment of the present of invention, described carrier level power contorl parameters comprises the frequency sign of initial Pebase Configuration Values and the corresponding carrier wave of network side transmission.
As one embodiment of the present of invention, described base station and UE receive respectively network side and comprise by the power contorl parameters group that high-level signaling issues: the power contorl parameters group that the NBAP/RNSAP signaling of network side by the Iub/Iur interface will include the carrier level power contorl parameters of each carrier wave sends to described base station; And the power contorl parameters group that the RRC signaling of network side by the Uu interface will include the carrier level power contorl parameters of each carrier wave sends to described UE.
As one embodiment of the present of invention, system is the TD-SCDMA system.
As one embodiment of the present of invention, each carrier level power contorl parameters indicates the frequency sign of corresponding carrier wave to comprise: each carrier level power contorl parameters includes the frequency sign of corresponding carrier wave, and perhaps other carrier waves except the carrier wave of acquiescence all include the frequency sign of corresponding carrier wave.
As one embodiment of the present of invention, the carrier wave of described acquiescence is the carrier wave at main carrier or DPCH place.
The present invention also proposes a kind of multi-carrier HSUPA power control system, the UE that comprises network equipment, base station and the service of described base station, described network equipment, be used for by high-level signaling the power contorl parameters group being handed down to described base station and UE, wherein, the carrier level power contorl parameters that comprises all carrier waves in the described multi-carrier HSUPA in the described power contorl parameters group, and each carrier level power contorl parameters is indicated the frequency sign of corresponding carrier wave; Described base station is used for according to described power contorl parameters group each carrier wave of described multi-carrier HSUPA being carried out the control of sub-carrier exterior ring power; Described UE is used for according to described power contorl parameters group each carrier wave of described multi-carrier HSUPA being carried out the control of sub-carrier exterior ring power.
The present invention also proposes a kind of network equipment, comprise that the control parameter arranges module and sending module, described control parameter arranges module, be used for arranging the power contorl parameters group, wherein, the carrier level power contorl parameters that comprises all carrier waves in the described multi-carrier HSUPA in the described power contorl parameters group, and each carrier level power contorl parameters is indicated the frequency sign of corresponding carrier wave; Described sending module, be handed down to base station and UE for the power contorl parameters group that described control parameter is arranged the module setting by high-level signaling, described base station and UE carry out the control of sub-carrier exterior ring power to each carrier wave in the described multi-carrier HSUPA respectively according to described power contorl parameters group.
As one embodiment of the present of invention, described carrier level power contorl parameters comprises the mapping relations of code check and signal to noise ratio and the frequency sign of corresponding carrier wave.
As one embodiment of the present of invention, system is TD-SCDMA system or WCDMA system.
As one embodiment of the present of invention, described network equipment is RNC.
As one embodiment of the present of invention, described carrier level power contorl parameters comprises the frequency sign of initial Pebase Configuration Values and corresponding carrier wave.
As one embodiment of the present of invention, system is the TD-SCDMA system.
Can solve the Power Control Problem of multi-carrier HSUPA by the present invention by distinguishing carrier wave, thereby the effectively performance of lifting mobile communication system applications multi-carrier HSUPA technology can be arranged.
The aspect that the present invention adds and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
The present invention mainly is, consider the multi-carrier HSUPA technology in actual applications, the channel quality of each carrier wave may be had any different, and therefore can distinguish carrier wave, each carrier wave is carried out respectively the external circule power control adjustment, thereby solve the problem of in the multi-carrier HSUPA system, carrying out power control.Particularly, in one embodiment of the invention, for the difference of outer-loop power controlling method, can in the NBAP/RNSAP related news of the Iub/Iur of existing protocol interface, increase frequency point information for the relevant parameter of adjusting external circule power control; Or in the RRC of Uu interface related news, increase frequency point information for the relevant parameter of adjusting external circule power control, so that the relevant adjustment parameter of the corresponding external circule power control of frequency point information can be learnt with UE in the base station, thereby can carry out respectively the external circule power control adjustment to each carrier wave.Certainly distinguish the thought that carrier wave is adjusted based on the present invention, can also calculate the external circule power control of each carrier wave and adjust the mean value of parameter, thereby according to this mean value each carrier wave be carried out respectively the external circule power control adjustment.From foregoing description, can find out, can carry out in many ways sub-carrier power control, based on any modification of the above-mentioned thought of the present invention or change and to be included within protection scope of the present invention.
In order to the present invention clearer and comprehensive understanding to be arranged, at first control is simply introduced to exterior ring power.For WCDMA (Wide band Code Division Multiple Access, broadband demal multiplex (MUX)) system, the channel of transmission of high speed uplink packet access business datum is E-DPDCH (E-DCHDedicated Physical Data Channel, E-DCH Dedicated Physical Data Channel); For the TD-SCDMA system, the channel of transmission of high speed uplink packet access business datum is E-PUCH channel (E-DCHPhysical Uplink Channel, E-DCH physical uplink channel).Carry out exterior ring power control for E-PUCH channel or E-DPDCH, can the transmitting power of channel effectively be adjusted based on Block Error Rate or the residual Bler of this channel, to guarantee the signal transmission quality of this channel.Take the TDD system as example, the transmitted power of E-PUCH arranges as follows:
P
E-PUCH=P
e-base+L+β
e
β
e=β
0,e+α
e+Δ
harq dB
Namely have:
P
E-PUCH=P
e-base+L +β
0,e+α
e+Δ
harq
Wherein, β
0, eRelevant with the code check that the TBS of the upper carrying of E-PUCH is corresponding, be the normalization target signal to noise ratio of unit resource unit (SF16 code channel), carry out linear interpolation by the middle normalized code check that disposes of high-level signaling IE " E-TFCS Infor " and signal to noise ratio (with reference to Beta) corresponding relation and calculate;
α
eThe spreading factor that uses with E-PUCH is corresponding;
Δ
HarqMay be:
If 1 correspondence is scheduled transmission, then Δ
HarqFor all of configuration are used maximum among HARQ power offset corresponding to the MAC-d stream of scheduling transmission resources mandates;
If 2 correspondences is non-scheduled transmission, then Δ
HarqFor all of configuration are used maximum among HARQ power offset corresponding to the MAC-d stream of non-scheduled transfer resource mandate;
If SI information, then Δ are only carried in 3 this time transmission
HarqThe HARQpower offset of individual transmission SI for configuration.
Wherein, closed loop power control command is forgiven at P
E-baseIn:
Wherein, PRX
De_baseBe P
EbaseThe initial setting up value, usually be set to the interference mean value of up E-PUCH time slot.
Based on above exterior ring power control algolithm, the present invention can realize exterior ring power control with following dual mode, below will be described in the mode of specific embodiment.
Embodiment one,
In this embodiment can be by RNC (Radio Network Controller, radio network controller) FP (the Frame Protocol of the user plane by Iub interface, Frame Protocol) the HARQFailure Indicator (mixed automatic retransfer is unsuccessfully indicated) that reports of frame carries out the decision-making of exterior ring power, and pass through the high-level signaling informing base station (by NBAP (the Node B Application Protocol of Iub interface, the Node B application protocol) signaling) and terminal (by RRC (the Radio ResourceControl of Uu interface, Radio Resource control) signaling) mapping relations of code check and signal to noise ratio, thus so that base station and terminal reach the purpose that exterior ring power is controlled by the code check (Reference Code Rate) of application renewal and the mapping relations of power (Reference Beta).Need to prove that not being only applicable to the TD-SCDMA system for this embodiment also is applicable to the WCDMA system, perhaps other similar systems.For Iub interface, the NBAP message of RNC by the Radio Link level parameter of certain terminal configuration (namely for) comprises that wireless link request message, wireless link increasing request message, radio link reconfiguration prepare to carry the configuration of the relevant IE informing base station code check of E-TFCS Information (E-DCH Transport Format Combination Set Information, E-DCH transport format combination set information) and power mapping relations in message and the radio link reconfiguration request message and reshuffle; For the Uu interface, RNC by carrying the relevant IE notice UE code check of E-TFCS Information and power mapping relations in the RRC message such as RRC connection setup (RRC connects foundation), Radio Bearersetup (radio bearer foundation), Radio Bearer Reconfiguration (radio bearer is reshuffled) configuration and reshuffle.
Carry out the mode of external circule power control decision-making based on RNC, thereby need to expand to the reference code check among the E-TFCS Information with reference to the mapping table of Beta and realize external circule power control, and carry out external circule power control based on distinguishing carrier wave, at first need to increase corresponding frequency point information (UARFCN IE) in order to indicate corresponding carrier wave, after base station or terminal receive corresponding information, obtain on the corresponding carriers with reference to code check with reference to the mapping relations of Beta according to the carrier wave of UARFCN IE indication, thereby use different mapping relations for different carrier waves.But as a preferred embodiment of the present invention, for main carrier or DPCH (Dedicated Physical Channel, DPCH) carrier wave at place can not arrange UARFCN IE, and it is the acquiescence carrier wave, but other carrier waves need to add corresponding UARFCN IE.As shown in Figure 1, be the multi-carrier HSUPA (High Speed Uplink Packet Access) power control method flow chart of the embodiment of the invention one, this embodiment may further comprise the steps:
Step S101, RNC by high-level signaling to base station and UE transmission power control parameter group, in this embodiment, the power contorl parameters group comprises the carrier level power contorl parameters of all carrier waves in the multi-carrier HSUPA, and the carrier level power contorl parameters comprises the mapping relations of code check and signal to noise ratio and the frequency sign of corresponding carrier wave in this embodiment.In one embodiment of the invention, each carrier level power contorl parameters includes the frequency sign of corresponding carrier wave, and perhaps other carrier waves except the carrier wave of acquiescence all include the frequency sign of corresponding carrier wave.Wherein, the carrier wave of acquiescence can be the carrier wave at main carrier or DPCH place.The signaling that adopts for different system in this embodiment is not identical with the parameter configuration mode yet, is described respectively as an example of TD-SCDMA system and WCDMA system example in this embodiment, and other system can be realized with reference to present embodiment.
Take the TD-SCDMA system as example,
RNC sends to the base station by the NBAP/RNSAP signaling of Iub/Iur interface with carrier level power contorl parameters (comprising the mapping relations of code check and signal to noise ratio and the frequency sign of corresponding carrier wave), and wherein the carrier level power contorl parameters comprises:
E-TFCS Information
IE/Group Name |
Presence |
Range |
IEType and Reference |
Semantics Description |
Reference Beta Information Per UARFCN (the reference signal to noise ratio information of each carrier wave) |
|
1.. the carrier number of<maxnoofU ARFCNs maximum 〉 |
|
|
>UARFCN (frequency point information) |
O |
|
|
Frequency point information shows with reference to the applied carrier frequency of the corresponding relation of code check and beta. |
>Reference Beta Information QPSK (the reference signal to noise ratio information under the QPSK modulation system) |
|
1.. the reference signal to noise ratio number of<maxnoo fRefbeta s maximum 〉 |
|
|
>>Reference Code Rate (with reference to code check) |
M |
|
INTEGER (0..10) |
Umt:-Range:0..1 Step:0.1 |
>>Reference Beta (with reference to signal to noise ratio) |
M |
|
INTEGER (15..16) |
Unit:-Range:-15..+16 Step:1 dB |
>Reference Beta Information 16QAM (the reference signal to noise ratio information under the 16QAM modulation system) |
|
1.. the reference signal to noise ratio number of<maxnoo fRefbeta s maximum 〉 |
|
|
>>Reference Code Rate (with reference to code check) |
M |
|
INTEGER (0..10) |
Unit:-Range:0..1 |
|
|
|
|
Step:0.1 |
>>Reference Beta (with reference to signal to noise ratio) |
M |
|
INTEGER(-15..16) |
Unit:- Range:-15..+16 Step:1 dB |
E-TFCS Information IE increases carrier frequency information in the table 1Iub interface NBAP message
RNC sends to UE by the RRC signaling of Uu interface with carrier level power contorl parameters (comprising the mapping relations of code check and signal to noise ratio and the frequency sign of corresponding carrier wave), and wherein the carrier level power contorl parameters comprises:
E-TFCS info
IE/Group Name |
Presence |
Multi |
IE Type and Reference |
Semantics Description |
Version |
Reference Beta Information Per UARFCN (the reference signal to noise ratio information of each carrier wave) |
|
1.. the carrier number of<maxnoofU ARFCNs maximum 〉 |
|
|
|
>UARFCN (frequency point information) |
OP |
|
|
Frequency point information shows with reference to the applied carrier frequency of the corresponding relation of code check and beta. |
|
>Reference Beta Information QPSK list (the reference signal to noise ratio information list under the QPSK modulation system) |
MP |
<1 to 8 〉 |
|
|
REL-7 |
>>Reference Code Rate (with reference to code check) |
MP |
|
Integer (0..10) |
Unit:-Range:0..1 Step:0.1 |
REL-7 |
>>Reference Beta (with reference to signal to noise ratio) |
MP |
|
Integer (15..16) |
Unit range-15db to+16db |
REL-7 |
>Reference Beta Information 16QAM list (the reference signal to noise ratio information list under the 16QAM modulation system) |
MP |
<1 to 8 〉 |
|
|
REL-7 |
>>Reference Code Rate (with reference to code check) |
MP |
|
Integer (0..10) |
Unit:-Range:0..1 Step:0.1 |
REL-7 |
>>Reference Beta (with reference to signal to noise ratio) |
MP |
|
Integer (15..16) |
Unit range-15db to+16db |
REL-7 |
E-TFCS Information IE increases carrier frequency information in the table 2Uu interface RRC message
From above-mentioned table 1 and table 2, can find out the mapping relations that in each carrier level power contorl parameters, not only comprise code check and signal to noise ratio, the frequency sign (UARFCN) that also comprises corresponding carrier wave, so that the base station is used different mapping relations with UE for different carrier waves, realize the purpose of multi-carrier HSUPA power control like this.But need to prove that in above-mentioned two tables, UARFCN is not necessary to occur, if UARFCN IE does not occur, the reference code check of expression configuration and be applied on the main carrier with reference to the Beta mapping relations then, or DPCH place carrier wave is first-class.In addition; need to prove that also the message modification mode that increases carrier information is not limited to above-mentioned example, all in Iub/Iur and RRC signaling by increasing the carrier information indication with reference to code check and all should be within protection scope of the present invention with reference to the scheme of Beta carrier wave that mapping relations are used.
For the WCDMA system
RNC sends to the base station by the NBAP/RNSAP signaling of Iub/Iur interface with carrier level power contorl parameters (comprising the mapping relations of code check and signal to noise ratio and the frequency sign of corresponding carrier wave), and wherein the carrier level power contorl parameters comprises:
IE/Group Name |
Presence |
Range |
IE Type and Reference |
Semantics Description |
Criticali ty |
Assigne d Criticali ty |
E-TFCI Table Index |
M |
|
INTEGER (0..1 ..., 2..7) |
Indicates which standardised E-TFCS Transport Block Size Table shall be used.The related tables are specified in[32]. |
- |
|
E-DCH Minimum Set E-TFCI |
O |
|
INTEGER (0..127) |
Forthe concept of " E-DCH Minimum Set of TFCs " see[32] and[18]. |
- |
|
Reference E-TFCI Information Per UARFCN (the reference E-TFCI information of each carrier wave) |
|
1..<maxno ofUARF CNs 〉 |
|
|
|
|
>UARFCN (frequency point information) |
OP |
|
|
Frequency point information shows with reference to the applied carrier frequency of the corresponding relation of code check and beta. |
|
|
>Reference E-TFCI Information (with reference to E-TFCI information) |
|
1..<max noofRefE TFCIs 〉 |
|
|
- |
|
>>Reference E-TFCI (with reference to E-TFCI) |
M |
|
INTEGER (0..127) |
|
- |
|
>>Reference E-TFCI Power Offset (with reference to the E-TFCI power excursion) |
M |
|
9.2.2.13Dp |
If the Extended Reference E-TFCI Power Offset IE is present, this IE shall be ignored |
- |
|
(the reference E-TFCI power of expansion is inclined to one side for>>Extended Reference E-TFCI Power Offset |
O |
|
9.2.2.13Dq |
|
YES |
Reject |
Move) |
|
|
|
|
|
|
E-TFCI Boost Information |
O |
|
9.2.2.88B |
|
YES |
reject |
E-DPDCH Power Interpolation |
O |
|
BOOLEAN |
True means that the E-DPDCH power interpolation formula shall be applied, False means that the E-DPDCH power extrapolation formula shall be applied for the computation of the gain factorβ
ed according to[10]
|
YES |
reject |
E-TFCS Information IE increases carrier frequency information in the table 3Iub interface NBAP message
RNC sends to UE by the RRC signaling of Uu interface with carrier level power contorl parameters (comprising the mapping relations of code check and signal to noise ratio and the frequency sign of corresponding carrier wave), and wherein the carrier level power contorl parameters comprises:
E-DPDCH Info
E-D Information IE increases carrier frequency information in the table 4Uu interface RRC message
From above-mentioned table 3 and table 4, can find out the mapping relations that in each carrier level power contorl parameters, not only comprise code check and signal to noise ratio, the frequency sign (UARFCN) that also comprises corresponding carrier wave, so that the base station is used different mapping relations with UE for different carrier waves, realize the purpose of multi-carrier HSUPA power control like this.
Step S102, base station and UE carry out exterior ring power control to each carrier wave in the multi-carrier HSUPA respectively according to the power contorl parameters group.By the corresponding relation between the mapping relations of above-mentioned frequency sign (UARFCN) and each carrier wave code check and signal to noise ratio, base station and UE just can distinguish carrier wave and carry out exterior ring power control, thereby realize the power control of multi-carrier HSUPA.
Embodiment two,
As shown in Figure 2, be the multi-carrier HSUPA (High Speed Uplink Packet Access) power control method flow chart of the embodiment of the invention two.This embodiment is different from embodiment one, mainly carries out the external circule power control decision-making based on the base station, needs to realize exterior ring power control by adjusting Pebase.Therefore in this embodiment, need to increase for initial Pebase Configuration Values corresponding frequency point information UARFCN IE to distinguish corresponding carrier wave, after base station or terminal receive corresponding information, according to the Pebase initial value on the carrier wave acquisition corresponding carriers of UARFCN IE indication, thereby use different Pebase fiducial values to carry out follow-up adjustment for different carrier waves.
Step S201, network side by high-level signaling to base station and UE transmission power control parameter group, in this embodiment, the power contorl parameters group comprises the carrier level power contorl parameters of all carrier waves in the multi-carrier HSUPA, and each carrier level power contorl parameters comprises the frequency sign of initial Pebase Configuration Values and the corresponding carrier wave of network side transmission.Be described for example with the TD-CDMA system in this embodiment, other system can be realized with reference to the TD-CDMA system.
The TD-CDMA system
NBAP/RNSAP signaling by the Iub/Iur interface sends to the base station with carrier level power contorl parameters (the frequency sign that comprises initial Pebase Configuration Values and corresponding carrier wave), and wherein the carrier level power contorl parameters comprises:
E-PUCH Information LCR
IE/Group Name |
Presence |
Range |
IE Type and Reference |
Semantics Description |
Criticali ty |
Assign ed Critica lity |
Minimum code rate |
M |
|
INTEGER (0..63) |
Unit:-Range:0.055..1 Step:0.015 |
- |
|
Maximum code rate |
M |
|
INTEGER (0..63) |
Unit:-Range:0.055..1 Step:0.015 |
- |
|
HARQ Info for E-DCH |
M |
|
ENUMERAT ED (rv0, rvtable) |
" rv0 " indicates that the UE will only use E_DCH RV index 0. " rvtable " indicates that the UE will use an RSN based RV index as specified in[8] |
- |
|
PRXDes_base per UARFCN (the reference expected power of accepting of each carrier wave) |
|
|
1..<maxnoofUA RFCNs 〉 |
|
|
|
>UARFCN (frequency point information) |
O |
|
|
|
Frequency point information shows the applied carrier frequency of Pebase initial value. |
|
>PRXdes_base (the reference expected power of accepting) |
M |
|
INTEGER (112..-50) |
DBm.Reference Desired RX power level for E-PUCH. Reference to Pe-base in [21] |
- |
|
E-PUCH TPC Step Size |
M |
|
TDD TPC UL Step Size 9.2.3.21a |
|
- |
|
E-AGCH TPC Step Size |
M |
|
TDD TPC DL Step Size 9.2.3.21 |
|
- |
|
E-PUCH Power Control GAP |
O |
|
INTEGER (1..255) |
Unit:Number of subframes. Reference to E-PUCH Power Control for 1.28Mcps TDD in[21].If it is not present, UE shall deem it to be infinite in which case closed loop power control shall always be used. |
YES |
ignore |
Increase carrier frequency information for initial Pebase Configuration Values in the table 5Iub/Iur interface message
RRC signaling by the Uu interface sends to UE with carrier level power contorl parameters (the frequency sign that comprises initial Pebase Configuration Values and corresponding carrier wave), and wherein the carrier level power contorl parameters comprises:
E-PUCH Info1.28Mcps
Information Element/Group name |
Need |
Multi |
Type and reference |
Semantics description |
Version |
E-TFCS information |
MP |
|
E-TFCS info 10.3.6.105 |
|
REL-8 |
SNPL Reporting Type |
OP |
|
Enumerated (type1, type2) |
|
REL-8 |
PRX_des_base Per UARFCN (the reference expected power of accepting of each carrier wave) |
|
1..<maxmoofU ARFCNs 〉 |
|
|
|
>UARFCN (frequency point information) |
OP |
|
|
Frequency point information shows the applied carrier frequency of Pebase initial value. |
|
>PRXdes_base (the reference expected power of accepting) |
MP |
|
Integer (112..-50by step of 1) |
DBm.Reference desired power level for E-PUCH |
REL-8 |
Beacon PL Est. |
MD |
|
Boolean |
TRUE indicates that the UE may take into account path loss estimated from beacon function physical channels Default value is FALSE |
REL-8 |
TPC step size |
MP |
|
Integer (1,2,3) |
DB. |
REL-8 |
The below omits some uncorrelated IE.。。 |
|
|
|
|
|
Increase carrier frequency information for initial Pebase Configuration Values in Fig. 6 Uu interface message
Equally, in above-mentioned two tables, UARFCN is not necessary to occur, if UARFCNIE does not occur, and the reference code check of expression configuration and be applied on the main carrier with reference to the Beta mapping relations then, or on the carrier wave of DPCH place.
From above-mentioned table 5 and table 6, can find out and in each carrier level power contorl parameters, not only comprise initial Pebase Configuration Values, the frequency sign (UARFCN) that also comprises corresponding carrier wave, so that the base station is used different mapping relations with UE for different carrier waves, realize the purpose of multi-carrier HSUPA power control like this.
Step S202, base station and UE carry out exterior ring power control to each carrier wave in the multi-carrier HSUPA respectively according to the power contorl parameters group.By the corresponding relation between the initial Pebase Configuration Values of above-mentioned frequency sign (UARFCN) and each carrier wave, base station and UE just can distinguish carrier wave and carry out exterior ring power control, thereby the power of realization multi-carrier HSUPA is controlled.
As shown in Figure 3, be the multi-carrier HSUPA power control system structure chart of the embodiment of the invention, this system comprises the UE 300 of network equipment 100, base station 200 and base station 200 services.Network equipment 100 is used for by high-level signaling the power contorl parameters group being handed down to base station 200 and UE 300, wherein, the carrier level power contorl parameters that comprises all carrier waves in the multi-carrier HSUPA in the power contorl parameters group, and each carrier level power contorl parameters is indicated the frequency sign of corresponding carrier wave.Base station 200 is used for according to the power contorl parameters group each carrier wave of multi-carrier HSUPA being carried out exterior ring power control.UE 300 is used for according to the power contorl parameters group each carrier wave of multi-carrier HSUPA being carried out exterior ring power control.
Wherein, network equipment 100 comprises that the control parameter arranges module 110 and sending module 120.The control parameter arranges module 110 and is used for arranging the power contorl parameters group, wherein, the carrier level power contorl parameters that comprises all carrier waves in the multi-carrier HSUPA in the power contorl parameters group, and each carrier level power contorl parameters is indicated the frequency sign of corresponding carrier wave.Sending module 120 is used for control parameter and the power contorl parameters group that module 110 arranges is set is handed down to base station 200 and UE300 by high-level signaling, and base station 200 and UE 300 carry out exterior ring power to each carrier wave in the multi-carrier HSUPA respectively according to the power contorl parameters group and control.
As one embodiment of the present of invention, the carrier level power contorl parameters comprises the mapping relations of code check and signal to noise ratio and the frequency sign of corresponding carrier wave.Wherein, system can be TD-SCDMA system or WCDMA system, and network equipment 100 can be RNC.
As an alternative embodiment of the invention, the carrier level power contorl parameters comprises the frequency sign of initial Pebase Configuration Values and corresponding carrier wave.Wherein, system can be the TD-SCDMA system.
Can solve the Power Control Problem of multi-carrier HSUPA by distinguishing carrier wave by the present invention, thus the performance of lifting mobile communication system applications multi-carrier HSUPA technology effectively.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment that scope of the present invention is by claims and be equal to and limit.