Abstract:
The method for supporting pilot boost to the uplink dedicated channels in the WCDMA system comprising steps of: transmitting E-TFCI to a Node B by a UE; adjusting an uplink pilot power boosting amplitude by the UE according to the E-TFCI; and performing a uplink inner loop power control by the Node B according to a measured SIR, a target preset by the inner loop power control and a pilot boost amplitude resulted from the E-TFCI. The object of supporting pilot boost is achieved by transmitting E-TFCI in advance by the UE, adjusting the power of pilot according to the E-TFCI properly, and considering the pilot power boosting amplitude when the Node B performs inner loop power control in the invention. Thus, the object of improving the capacity of the wireless communication system can be accomplished through supporting the pilot boost in the invention.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to enhanced uplink dedicated channel (Enhanced DCH, hereinafter referred to simply as E-DCH) in WCDMA, especially to the method for supporting pilot boost by transmitting the transport format combination indicator of the E-DCH (E-TFCI) in advance in the E-DCH. 
   2. Description of the Related Art 
     FIG. 1  shows the uplink physical channel structure of a user equipment (hereinafter referred to simply as UE) in version R99/Rel-4 in a frequency division duplex (hereinafter referred to simply as FDD) WCDMA system. 
     101  Dedicated Physical Data Channel (hereinafter referred to simply as DPDCH). In the FDD system, the physical channel includes the dedicated physical data channel and the dedicated physical control channel. The DPDCH is used for transmitting a dedicated channel (hereinafter referred to simply as DCH). 
     102  Dedicated Physical Control Channel (hereinafter referred to simply as DPCCH). The DPCCH is used for transmitting control information of the physical layer. Gain factors are applied to set the power ratio for the corresponding DPDCH and DPCCH respectively. The DPCCH is composed of pilot, transport format combination indicator (hereinafter referred to simply as TFCI), feedback information (hereinafter referred to simply as FBI) and transmit power control commands (hereinafter referred to simply as TPC). 
     102 A Pilot which is used for channel estimation and power control. In the wireless communication system, it is difficult to recover the transmitted signal by directly processing the received signal since the wireless channel has made some modification to the phase of the transmitted signal. To solve this problem, the transmitter should transmit some known training sequences. Therefore, the receiver can recover the phase of the transmit signal by obtaining the information on the channel from the received training sequence so as to improve the correctness of signal receiving. This process is called channel estimation. The pilot is a kind of training sequence for channel estimation. In addition, because the pilot is a known sequence and the measure of Signal-to-Interference Ratio (hereinafter referred to simply as SIR) is easily conducted for it, it is also often used for power control. 
     102 B TFCI which is the concept of TFCI is specially described in the following section. 
     102 C FBI which is used for transmitting the feedback information from the UE to the network in the techniques such as closed-loop transmit diversity and site selection diversity transmit power control. 
     102 D TPC which is the uplink transmitted TPC of the UE are used for power control on the downlink transmitted signal of Node B. 
   Now, the concept of the TFCI will be explained. In the WCDMA system, the transport channels are services that the physical layer provides to the higher layers. The DCH mentioned above is one of the transport channels. Within one transmission time interval (hereinafter referred to simply as TTI), the physical layer exchanges transport blocks which is from zero to several with the media access control layer (hereinafter referred to simply as MAC) in one transport channel. At present, the TTI of the DCH in the FDD can be 10 ms, 20 ms, 40 ms or 80 ms. The number of bits in each transport block is called transport block size (hereinafter referred to simply as TBS). The set of transport blocks within one TTI of a transport channel is called the transport block set. The number of bits in one transport block set is called transport block set size (hereinafter referred to simply as TBSS). One transport channel or more can be multiplexed to one code composite transport channel (hereinafter referred to simply as CCTrCH) simultaneously and then mapped to the physical layer. The TBS reflects the data rate of the transport channel, while the TBSS reflects the total data rate of CCTrCH. For the transport channel, the format used for data exchanging between the physical layer and the MAC layer within one TTI is defined as the transport format (hereinafter referred to simply as TF). The TF mainly includes the TBS and the TBSS. The set of transport formats corresponding to each transport channel is called transport format set. The number of each TF in the transport format set is called the transport format indicator (hereinafter referred to simply as TFI). In the CCTrCH, one combination of the TF of one transport channel is called transport format combination (hereinafter referred to simply as TFC). The TFCI is used for notifying the receiver of the TFC mapped to the current CCTrCH so as to receive the DPDCH correctly. With the received TFCI, the TFI of each transport channel in the CCTrCH can be obtained so that the receiving end can decode the information included in each transport channel. In existing systems, the TFCI and the DPDCH corresponding to it are transmitted simultaneously. 
     FIG. 2  shows the process of generating, transmitting and receiving the TFCI in the WCDMA system. In the transmitter of the UE, two dedicated channels  201  and  205  are multiplexed to one CCTrCH. The Dedicated channel  201  corresponding to the TFI  202  includes two transport blocks, i.e., block  203  and  204 . Similarly, the dedicated channel  205  corresponding to the TFI  206  includes two transport blocks, i.e., block  207  and  208 . The TFI  202  and the TFI  206  are combined and indicated with the TFCI  209  by the physical layer of the UE. Then, the TFCI  209  is multiplexed into the DPCCH  210  after it is encoded by the physical layer of the UE and transport block  203 ,  204 ,  207  and  208  are transmitted through the DPDCH  212  after they are encoded and multiplexed (this process is implemented by the module  211 ). The DPCCH  210  and DPDCH  212  are transmitted via the wireless channel to reach the base station (hereinafter referred to simply as Node B). The Node B obtains the TFCI  214  from the received DPCCH  213 , and the TFI  217  of dedicated channel  201  and the TFI  220  of dedicated channel  205  are obtained after the TFCI  214  is decoded. The Node B obtains the transport block  219  and  218  after decoding and demultiplexing the module  216  according to the TFI  217 , and the transport block  219  and  218  correspond to the transmitted block  203  and  204  respectively. Similarly, the Node B obtains transport block  222  and  221  after decoding and demultiplexing the module  216  according to the TFI  220 , and the transport block  222  and  221  correspond to the transmitted block  207  and  208  respectively. 
   The E-DCH is a research issue on enhancing the existing uplink dedicated channels under the standardization by 3rd Generation Partnership Project (hereinafter referred to simply as 3GPP). The object of the research is to improve the uplink system performance for the FDD system by studying on techniques of adaptive modulation &amp; coding, hybrid automatic repeat request and Node B controlled scheduling. The concepts of E-DCH, E-DPDCH, E-DPCCH and E-TFCI have been introduced in the research of E-DCH. The E-DCH per se is a new kind of dedicated transport channel or an improved to the existing DCH. It should be noted that the E-DCH represents following two aspects in the present application: the research project and the research object in the project. Similar to the relationship between the E-DCH and the DCH, the E-DPDCH is a new kind of dedicated physical data channel or an improved to the existing DPDCH. Likewise, the E-DPCCH is the new kind of dedicated physical control channel associating to the E-DPDCH or an improved to the existing DPCCH. Several DCHs and E-DCHs can exist in the uplink transport channel of the UE. Following two multiplexing methods can be applied in the E-DCH and the existing DCH: the time division multiplexing (hereinafter referred to simply as TDM) and the code division multiplexing (hereinafter referred to simply as CDM). Here, the former means that the E-DCH and the DCH are multiplexed to the same code channel, while the latter to different ones, i.e., different code channels are adopted in the E-DPDCH and the DPDCH. Corresponding to the E-DCH, the E-TFCI is adopted to indicate the transport format combination of the E-DCH. After the concept of the E-TFCI has been introduced in the present application and for the convenience of distinguishing, the TFCI corresponding to the DCH is called D-TFCI, which indicates the transport format combination of the DCH. The E-TFCI can be transmitted via the existing DPCCH, i.e., the E-TFCI and the D-TFCI can be multiplexed to TFCI  102 B of DPCCH with the method of coding. Also, the E-TFCI can be transmitted via the physical channel (e.g., E-DPCCH) other than the DPCCH. 
   In the CDMA system, the power control is the very important approach in solving the problem of near-far effect and improving the system capacity. The power control includes two levels of inner loop power control and the outer loop power control. The outer loop power control sets the target for the inner loop power control according to the requirements of the QoS. And the inner loop power control adjusts the transmitting power according to the target preset by the outer loop power control, that is, adjusting the received SIR within the permitted range of the target of the inner loop power control (hereinafter referred to simply as SIR target ). In the FDD system, the inner loop power control operates once in every time slot (Slot for short). The uplink inner loop power control refers to the one that the Node B controls uplink transmitting power of the UE. And the downlink inner loop power control refers to the one that UE controls downlink transmitting power of the Node B. 
     FIG. 3  illustrates the process that the uplink inner loop power control operates in the existing WCDMA system. Data  301  transmitted from the UE reaches the base station after it is adjusted by the transmitting power control module  302  and passes through the radio channel. Denote the SIR that the Node B has measured for the uplink DPCCH by SIR est . The SIR est  is obtained mainly by measuring the pilot, or it can be obtained by the measured data or other techniques. In the comparing and judging module  304 , the Node B compares the SIR est  with the SIR target  and if the SIR est  is less than the SIR target , the Node B sends the “TPC UP” command to the UE to increase the transmitting power; otherwise, it sends the “TPC DOWN” command to the UE to decrease the transmitting power. In the existing system, the SIR target  per se is adjusted by the outer loop power control but this adjustment has nothing to do with the data rate. The TPC commands  305  sent from the Node B are transmitted to the UE via the radio channel  306 . Having received the downlink TPC command, the UE adjusts the transmitting power for the uplink DPCCH, DPDCH and E-DPDCH (only in the E-DCH) according to the requirement of the received TPC command in the transmitting power control module  302 . The adjustment amplitude called the power control step size that UE operates to the transmitting power is specified by the network. In current WCDMA standard, the power control step size can be 1 dB, 2 dB or 3 dB. The power adjustment of the DPCCH can be calculated by equation (1) below:
 Δ DPCCH =Δ TPC ×TPC —   cmd   (1) 
   Where: Δ TPC  stands for the power control step size; TPC_cmd is determined by the downlink TPC sent from the Node B. When Node B sends the TPC UP via the downlink, TPC_cmd=+1; otherwise, TPC_cmd=−1. For instance, when the power control step is 2 dB and the Node B sends TPC UP via the downlink, the UE boost the transmission power by 2 dB for the DPCCH. 
   The UE adjusts the transmitting power for other physical channels other than the DPCCH according to the corresponding gain factors. Every physical channel has a gain factor corresponding to a TFC.  FIG. 9  shows the structure of a kind of physical channel of E-DCH. All four physical channels like  901 ,  902 ,  903  and  904  corresponding to DPDCH, E-DPCCH, E-DPDCH and DPCCH respectively are shown in  FIG. 9 . In the uplink of the FDD system, every physical channel requires the process of spreading, then multiplies by the gain factor. c d , c T , c eu/d  and c c  are the channel codes for the DPDCH, E-DPCCH, E-DPDCH and DPCCH respectively. And the corresponding gain factors are β d , β T , β eu/d  and β c  respectively. The DPDCH&#39;s spreading module and product of gain factor module are  905  and  909  respectively. Similarly, the spreading module and the product of gain factor module of the E-DPCCH are  906  and  910  respectively, spreading module and product of gain factor module of the E-DPDCH are  907  and  911  respectively, and the spreading module and product of gain factor module of the DPCCH are  908  and  912  respectively. The data of the DPDCH multiplied by the gain factor and that of E-DPCCH multiplied by the gain factor are added in the adder  913  to yield the data of branch I. The data of the E-DPDCH multiplied by the gain factor and that of the DPCCH multiplied by the gain factor are added in the adder  914  and multiply by j in procedure  915  to yield the data of branch Q. Finally, data of branch I and Q pass through the adder  916  to yield the data of base band signal. Above is the explanation to the structure of a kind of physical channel of E-DCH. It should be noted that the transmitting power of any other physical channel other than the DPCCH can be determined by the corresponding gain factor, i.e., the transmitting power of any other physical other than the DPCCH is determined when that of the DPCCH has been adjusted according to the downlink TPC commands. 
   In the wireless communication system, reducing the SNR (signal-to-noise ratio) of the receiver will improve the capacity of the entire system on condition that certain QoS is satisfied. In the research of E-DCH, it is found that: proper boosting of the pilot SIR for the high rate data can improve the performance of channel estimation, therefore the SNR of all signals of the UE for the Node B has been greatly reduced so that the system capacity has been improved. This idea is called pilot boost. However, in the existing system, the pilot SIR has nothing to do with the application data rate but is under the control of the outer loop power control. The inner loop power control aims at adjusting the pilot SIR to approach the target preset by the outer loop power control. If the pilot SIR is boosted, the Node B will make a wrong assumption that channels have been improved. Consequently, the pilot SIR will be reduced to its original level through the power control. So, the object of improving the pilot SIR for high data rate system can not be reached simply through increasing the pilot SIR with no other associated techniques. 
   SUMMARY OF THE INVENTION 
   The object of present invention is to provide a simple but effective method for supporting pilot boost so as to improve the capacity of the wireless communication system. 
   To achieve the object mentioned above, a method for supporting pilot boost to the uplink dedicated channels in the Wideband Code Division Multiple Access system comprising steps of: 
   transmitting E-TFCI to a Node B by a UE before transmitting a E-DCH corresponding to the E-TFCI; 
   adjusting an uplink pilot power boosting amplitude by the UE according to the E-TFCI; and 
   performing a uplink inner loop power control by the Node B according to a measured SIR, a target preset by the inner loop power control and a pilot boost amplitude resulted from the E-TFCI. 
   The method for supporting pilot boost through transmitting E-TFCI in advance is proposed in the present invention. In this method, the object of supporting pilot boost is achieved by transmitting E-TFCI in advance by the UE, adjusting the power of pilot according to the E-TFCI properly, and considering the pilot power boosting amplitude when the Node B performs inner loop power control. Thus, the object of improving the capacity of the wireless communication system can be accomplished through supporting the pilot boost in the invention. The power of pilot is completely used for the channel estimation and the power control, so that the uplink power resource has been made full use of in the present invention. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  shows the uplink physical channel structure of the FDD in R99/Rel-4. 
       FIG. 2  illustrates the process of generation transmission and receiving of the TFCI in the WCDMA system. 
       FIG. 3  illustrates the process of uplink power control in the WCDMA system. 
       FIG. 4  illustrates the process that the RNC notifies the Node B and UE of the pilot power boosting amplitude corresponding to the reference E-TFCI. 
       FIG. 5  illustrates the inner loop power control operations performed by the Node B in each time slot in the present invention. 
       FIG. 6  illustrates the inner loop power control operations performed by the UE in each time slot in the present invention corresponding to  FIG. 5 . 
       FIG. 7  illustrates the operations of transmitting both D-TFCI and E-TFCI in advance. 
       FIG. 8  illustrates the operations of transmitting the E-TFCI in advance while the D-TFCI synchronously. 
       FIG. 9  shows the structure of a kind of physical channel of E-DCH. 
       FIG. 10  illustrates the process of boosting the pilot power in DPCCH. 
       FIG. 11  shows an example of hardware block diagram of the UE. 
       FIG. 12  shows an example of hardware block diagram of the Node B. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   A method for supporting pilot boost by transmitting E-TFCI in advance is proposed in the present invention. This method is composed of following three important parts: 
   1) The UE adjusts the uplink pilot power boosting amplitude according to the E-TFCI. 
     FIG. 10  illustrates the process of boosting the power of the pilot in the DPCCH. In  FIG. 10 , the pilot power boosting amplitude ΔP pilot  refers to the power increment of pilot  102 A with regard to the power of rest (e.g., TFCI  102 B and TPC  102 D) in the DPCCH. The power boosting of the Pilot can be 0 dB (i.e., no boosting to the power of the pilot). For high data rate, system capacity can be improved by boosting the power of the pilot properly. 
   The relationship between the E-TFCI and the corresponding pilot power boosting amplitude can be specified in following two approaches. One is to clearly specify the correspondence relationship with a table or a computation formula in the standard. The other is to specify the algorithm in the standard to compute the pilot power boosting amplitudes of the other E-TFCI according to that of the reference E-TFCI. 
   2) The UE transmits the E-TFCI to the Node B before transmitting the E-DCH corresponding to the E-TFCI. 
   Following two methods may be adopted for the UE to transmit the E-TFCI in advance: one is that UE transmits the E-TFCI to the Node B before transmitting the E-DCH corresponding to the E-TFCI, and transmits the D-TFCI to the Node B before transmitting the DCH corresponding to the D-TFCI. In this case, if the E-TFCI and the D-TFCI are encoded and multiplexed into the TFCI of DPCCH, it means that the TFCI has been transmitted before the transmission of the E-DCH corresponding to the E-TFCI. The other is that the UE transmits the E-TFCI before the transmission of the E-DCH corresponding to the E-TFCI, but transmits the D-TFCI and the corresponding DCH synchronously. The advantage of the method is that ensures the compatibility with the previous versions. 
     FIG. 7  shows the operations of transmitting both the D-TFCI and the E-TFCI in advance. In  FIG. 7 ,  701 ,  702 ,  703  and  704  are the DCH, D-TFCI, E-TFCI and E-DCH respectively at TTI n. And at TTI n+1,  705 ,  706 ,  707  and  708  are the DCH, D-TFCI, E-TFCI and E-DCH respectively. At TTI n, the D-TFCI  702  indicates the DCH  705  at TTI n+1, and the E-TFCI  703  indicates the E-DCH  708  at TTI n+1. 
     FIG. 8  illustrates the operation process of transmitting E-TFCI in advance but D-TFCI synchronously. In  FIG. 8 ,  801 ,  802 ,  803  and  804  are the DCH, D-TFCI, E-TFCI and E-DCH respectively at TTI n. And at TTI n+1,  805 ,  806 ,  807  and  808  are DCH, D-TFCI, E-TFCI and E-DCH respectively. At TTI n, the D-TFCI  802  indicates the DCH  801  at TTI n+1, and the E-TFCI  803  indicates the E-DCH  808  at TTI n+1. 
     FIGS. 7 and 8  do not show the actual frame structure but the timing relationship. In  FIGS. 7 and 8 , the DCH and E-DCH share the same TTI for the convenience of explanation. It is clearly that the DCH and the E-DCH can have different TTIs. In  FIGS. 7 and 8 , the E-TFCI is transmitted one TTI earlier than the transmission of the E-DCH. It is clearly that the E-TFCI can be transmitted several TTIs earlier than the transmission of the E-DCH. 
   With the transmission of the E-TFCI in advance, the Node B can obtain the pilot power boosting amplitude from the received information on the E-TFCI and consider this factor when performing inner loop power control. The timing relationship on the transmission of the E-TFCI in advance must satisfy that the end time of E-TFCI&#39;s TTI must be earlier than the starting time of TTI of the E-DCH corresponding to the E-TFCI. 
   3) The Node B must consider the pilot power boosting amplitude when performing the inner loop power control. 
   In the existing FDD system, the Node B compares the measured SIR with the inner loop power control target to determine whether to make the UE increase or decrease the transmitting power. The Node B makes a comprehensive consideration on the measured pilot SIR, the inner loop power control target and the pilot power boosting amplitude derived from the E-TFCI to generate a TPC command for the downlink in present invention. That is to say, if SIR est &lt;SIR target +ΔP pilot , the Node B sends the TPC UP command to demand the UE to increase the transmitting power; otherwise, it sends the TPC DOWN command to demand the UE to decrease the transmitting power. The present invention does not relate to the adjustment of SIR target , i.e., the present invention does not relate to the outer loop power control. 
   Embodiments 
   Referring to the figures attached, one embodiment of the invention is described in the following. To avoid making the description of the application be too tedious, detailed descriptions for functions or means being familiar to the public are omitted. 
   Now, one embodiment of the invention is described in two aspects of the operations in the network and that in the UE. 
   1) Operations in the Network End: 
     FIG. 4  illustrates the process that the Radio Network Controller (hereinafter referred to simply as RNC) notifies the Node B and the UE of the pilot power boosting amplitude corresponding to the reference E-TFCI.  401  is the process that the RNC notifies the Node B through the Iub signaling of the pilot power boosting amplitude corresponding to the reference E-TFCI.  402  is the process that the RNC notifies the UE through RRC signaling of the pilot power boosting amplitude corresponding to the reference E-TFCI. For the consideration of simplification, the signaling returned from the Node B and the UE to the RNC has not been plotted in  FIG. 4 . Furthermore, the timing relationship of signaling in  FIG. 4  is not critical, i.e., it can be either the signaling  402  is transmitted to the UE first or the signaling  401  is transmitted to the Node B first. The Signaling  401  is either the new Iub signaling or the extension of the existing Iub signaling. Similarly, the signaling  402  is either the new RRC signaling or the extension of the existing RRC signaling. After receiving the signaling  401 , the Node B should save the contents of this signaling. In this way, the Node B can calculate the pilot power boosting amplitudes corresponding to the other E-TFCI or TFCI according to that of the received corresponding to the reference E-TFCI. 
   Following is an algorithm of calculating the ΔP pilot  corresponding to any other E-TFCI according to the ΔP pilot  corresponding to the reference E-TFCI. 
   It is assumed the sum of TBSS of all E-DCHs corresponding to the reference E-TFCI is TBSS ref , and the corresponding ΔP pilot  is ΔP pilot,ref , the sum of TBSS of all E-DCHs corresponding to a certain E-TFCI is TBSS other , then the ΔP pilot  corresponding to the E-TFCI can be calculated (in logarithm domain) according to equation (2) below:
 
Δ P   pilot,other   =ΔP   pilot,ref   +K ×log 10 (TBSS other /TBSS ref )  (2)
 
   Where: K is used for adjusting the amplitude of ΔP pilot  with the change of the TBSS. K can be specified directly in the standard, or can be notified the UE and the Node B through the RRC signaling and Iub signaling respectively. Similar to the signaling used for transmitting the ΔP pilot  corresponding to the reference E-TFI, the RRC signaling used for transmitting K is either a new one or the extension of the existing RRC signaling. And the Iub signaling used for transmitting K can be either a new one or to the extension of the existing Iub signaling. K can also be incorporated in the RRC signaling or Iub signaling used for transmitting the pilot power boosting amplitude signaling corresponding to the reference E-TFCI. 
     FIG. 5  illustrates the inner loop power control operations performed by the Node B in each time slot in the present invention. Corresponding to  FIG. 5 ,  FIG. 6  illustrates the inner loop power control operations performed by the UE in each time slot in the present invention. 
   In step  501  in  FIG. 5 , the Node B obtains the pilot power boosting amplitude ΔP pilot  according to the E-TFCI when performing inner loop power control. 
   In step  502  in  FIG. 5 , the Node B estimates the SIR est  of the received signal. 
   In step  503  in  FIG. 5 , the Node B judges whether the SIR est  is less than the sum of SIR target +ΔP pilot  or not. If so, the process goes to  504 . If not, goes to  505 . The SIR target  is still adjusted according to the approach of outer loop power control specified in the R99/Rel-4/Rel-5, i.e., the present invention has no modification to the operations of outer loop power control in the existing system. 
   In step  504  in  FIG. 5 , the Node B sends the TPC UP command to demand the UE to increase the transmitting power. 
   In step  505  in  FIG. 5 , the Node B sends the TPC DOWN command to demand the UE to decrease the transmitting power. 
   2) Operations in the UE End: 
   After the UE receives signaling  402 , it should save the contents of this signaling. In this way, it can calculate the ΔP pilot  corresponding to any other E-TFCI according to the ΔP pilot  corresponding to the reference E-TFCI. For details, please refer to equation (2). 
   Corresponding to  FIG. 5 ,  FIG. 6  illustrates the inner loop power control operations performed by the UE in each time slot in the present invention. 
   In step  601  in  FIG. 6 , the UE sets the transmitting power of other parts like the TFCI and the TPC for the DPCCH according to the TPC transmitted from the Node B via the downlink. The setting approach is consistent with the inner loop power control specified in existing R99/Rel-4/Rel5. Denote P c  as the transmitting power (in logarithm domain) of other parts of the set DPCCH. 
   In step  602  in  FIG. 6 , the UE obtains the pilot power boosting amplitude ΔP pilot  according to the received E-TFCI. Denote P pilot  as the transmitting power of the pilot (in logarithm domain). Then the P pilot  can be calculated according to equation (3) below:
 
 P   pilot   =P   c   +ΔP   pilot   (3)
 
   In step  603  in  FIG. 6 , the UE sets the transmitting power for the uplink physical channels (such as DPDCH, E-DPDCH and E-DPCCH) other than the DPCCH by the gain factors according to the method in the existing system. 
   In  FIG. 6 , the calculation in step  601  must be conducted earlier than the operations in step  602  and  603 , because the adjustments to the power of the pilot and other physical channels conducted in step  602  and  603  must be based on that the power of other parts in the DPCCH have been adjusted well according to the downlink TPC commands. Since there is no interaction between the calculation of step  602  and  603 , the operation timing relationship can be at will, i.e., it is OK that either step  602  is conducted earlier than step  603  (as shown in  FIG. 6 ) or vice versa. It should be noted that the process shown in  FIG. 6  is not the one that the Node B actually adjusts the power but determines the power of every uplink physical channel. Referring to  FIG. 1 , the DPDCH  101  and the DPCCH  102  are transmitted in parallel, so the adjustments to the power of DPDCH and the pilot are conducted at the same time. However, the adjustment to the power of the pilot is conducted earlier than that to the power of the other parts (e.g., TFCI, TPC, etc.) of the DPCCH. 
     FIG. 11  shows an example of the hardware block diagram of the UE implemented the present invention. 
   Firstly, the hardware structure of UE transmitter will be explained. Data  1101  of the E-DCH passes through the module  1104  for Turbo encoding. Then the encoded data is input into the H-ARQ module  1105 . The H-ARQ module  1105  is mainly used for utilizing the link efficiency improvement introduced by the re-transmission of the physical layer. Data output from the H-ARQ module  1105  is input into the interleaver  1106  for interleaving to reduce the performance loss resulted from the fading channel. Then it passes through the spreading module  907  and multiplies by the gain factor in module  911 . And in the physical layer of the UE, the D-TFCI  1102  which indicates the DCH and the E-TFCI  1103  which indicates the E-DCH are combined into the TFCI  102 B. In the power adjustment module  1107 , the E-TFCI  102 B, the FBI  102 C and the TPC  102 D begin to set the transmitting power according to the received downlink TPC  1122  and the directions in process  601 . And in the power adjustment module, the transmitting power of pilot  102 A is set according to the directions in process  602 . In module  904 , the pilot  102 A, E-TFCI  1001 , FBI  102 C and TPC  102  are multiplexed to the DPCCH. Then the DPCCH is processed by the spreading module  908  and multiplies by the gain factor in module  912 . According to process  603 , the UE sets the transmitting power for the DPDCH  901 , the E-DPCCH  902  and the E-DPDCH. The base band signal is scrambled in module  1108 . It is for the object of distinguishing the signal of the UE from the other UEs. The scrambled signal passes through the pulse shaping filter  1109 , which is adopted to confine the signal of the UE within a specific bandwidth. Then the signal passes through the DAC  1110  and is converted from digital to analog signal. Next, the signal is input into the RF (Radio Frequency) transmitter  1111  to execute the RF related operations. The output from the RF transmitter is input into the duplexer  1112  and finally transmitted to the wireless channel through antenna  1113 . 
   Secondly, the hardware structure of the UE receiver will be explained. Signal transmitted from the Node B is received by antenna  1113  of the UE and passes through the duplexer  1112  to enter RF receiver  1114  of the UE. Here, the oscillator is adjusted and operation of AGC (Automatic Gain Control) is performed on the signal. Then the received signal is converted from analog to digital in the ADC (Analog-to-Digital Converter)  1115 . The digital signal is subject to de-scramble, de-spreading, and multi-path signal combining process and demodulation process sequentially in the RAKE receiver  1117 . And the demodulated data is demultiplexed into the DCH data, TFCI  1119  and TPC  1122 , etc. through the de-multiplexer  1118 . The DCH data is recovered to data  1123  after passing through the de-interleaver  1120  and the decoder  1121 . The UE transmits the TPC  1122  received via the downlink to the power adjustment module  1107  to complete the function of inner loop power control. 
     FIG. 12  shows an example of the hardware block diagram of the Node in the present invention. 
   Firstly, the hardware structure of the Node B transmitter will be explained. DCH data  1201  passes through the encoder  1202  for channel encoding. Then the encoded data is input into the interleaver  1203  for interleaving. Now, the data is multiplexed (this process is conducted in the multiplexer  1207 ) with the Pilot  1205 , TFCI  1206  and the downlink TPC  1204  transmitted from the uplink power control module  1235 . The multiplexed data is modulated by the modulator  1209  after it experiences serial-parallel conversion in module  1208 . And the modulated data is subject to spreading by module  1210  in branch I and module  1211  in branch Q respectively. Data of branch Q multiplies j in the module  1212 . Data of branch I and Q compose the base band signal in module  1213  and the base band signal is scrambled in module  1214 . Then the scrambled signal is multiplexed (this process is conducted in the adder  1216 ) with other downlink physical channels in the mode of CDM after it is multiplied by the gain factor in module  1215 . The downlink signal is converted from digital to analog after it passes through the pulse shaping filter  1217  and the DAC  1218 . Next, the signal is input into the RF (Radio Frequency) transmitter  1219  to experience RF related operations. The output from the RF transmitter is input into the duplexer  1220  and finally transmitted to the wireless channel through antenna  1221 . 
   Secondly, the hardware structure of the Node B receiver will be explained. Signal transmitted from the UE is received by antenna  1221  of the Node B and passes through the duplexer  1220  to enter RF receiver  1222  of the Node B. Then the received signal is converted from analog to digital in the Analog-to-Digital Converter  1223 . The digital signal is subject to the de-scramble, de-spreading, multi-path signal combining process and demodulation process sequentially in the RAKE receiver  1225 . And the demodulated data is demultiplexed into the E-DCH data, the TFCI  1230 , the FBI  1229  and the TPC  1228 , etc. through the de-multiplexer  1227 . The E-DCH data is recovered to data  1234  after passing through the de-interleaver  1231 , the H-ARQ module  1232  and the decoder  1233 . The TFCI  1230  can be split into the D-TFCI  1236  and the E-TFCI  1237 . The Node B obtains the corresponding pilot power boosting amplitude according to the TFCI  1230  or the E-TFCI  1237 . And the SIR est  (Signal-to-Interference Ratio) of the signal is estimated in the RAKE receiver  1225  of the Node B. The uplink power control module  1235  of the Node B generates the TPC commands  1204  according to SIR est , the pilot power boosting amplitude, the current SIR target  and the directions in process  503 .