CN102196550A - Mobile communication system, base station control device and mobile terminal - Google Patents

Abstract

The invention provides a mobile communication system, a base station control device and a mobile terminal. In the mobile communication system, the maximum numbers of non-serving base stations selected by the base station control devices (25) are prepared, and the maximum number is selected from the plurality of prepared maximum numbers of the non-serving base stations according to the capability of the mobile terminal (21). Therefore, the effect of reducing the circuit scale of a receiving circuit of the mobile terminal (21) can be achieved if the mobile terminal (21) is the mobile terminal B at a lower transmission rate.

Description

Mobile body communication system, base-station control apparatus and portable terminal

Technical field

The present invention relates to a kind of portable terminal, the base-station control apparatus of data and mobile body communication system that constitutes by this base-station control apparatus etc. of sending, wherein said base-station control apparatus receives a plurality of base stations of the data that this portable terminal sends from grand diversity (macrodiversity), selects to have the non-serving base stations of the controlled function of the transmitted power of data in this portable terminal of control.

Background technology

Portable terminal in the existing mobile body communication system constitutes by data and arrives successively, sends this data to the base station.

That is, in the existing mobile body communication system, allow each portable terminal in the sub-district to send data arbitrarily.

But, in recent years, being accompanied by the high speed that sends data, it is big that the transmission data power of portable terminal becomes, so the interference volume of base station increases.

As a result, send arbitrarily under the data conditions at each portable terminal, the interference volume of base station surpasses allowance, causes and can not communicate by letter.

Therefore, in the mobile body communication system of high-speed data packet communication, by scheduler program is equipped on the base station, this scheduler program is controlled transmission rate in each portable terminal or transmitted power etc., makes the power that sends simultaneously from each portable terminal be no more than boundary.

That is, the scheduler program of base station is by considering the interference volume of base station, controls the transmission rate of each portable terminal or transmitted power etc., sends the base station interference amount that causes in the data by each portable terminal to be no more than in the scope of boundary, near maximum magnitude.

Thus, owing to can effectively utilize Radio Resource,, improve the throughput of mobile body communication system so can increase the saturation of the portable terminal in the sub-district.

In addition, in existing mobile body communication system, send the possibility of data simultaneously with high speed from each portable terminal owing to exist the base station can not control interference volume, so suppose this situation, estimate surplus to a certain degree, limit maximum transmission rate, if but above-mentioned scheduler program can be controlled the interference volume of base station reliably, then can reduce this surplus, and improve the transmission throughput of portable terminal.

Here, in the up transmission of data, the data that send from portable terminal arrive a plurality of base stations sometimes, and the base station in addition, base station of taking on scheduling also can receive these data.

A plurality of base stations are received the processing that improves quality after the data that send from 1 portable terminal and be called grand diversity, when existing a plurality of receptions under the situation of the base station of the data of 1 portable terminal transmission, will take on the base station that the scheduling of this portable terminal is handled and be called main (Primary) base station or service (Serving) base station.

On the other hand, although be called non-serving base stations with not taking on the base station that scheduling handle to receive the data that send from portable terminal, the set of a plurality of base stations that will communicate with certain portable terminal is called active group (active set).

Wherein, with the relation of certain portable terminal in, even if non-serving base stations, with the relation of other portable terminal in, also must take on scheduling sometimes and handle, install so scheduler program self is carried out.The scheduling whether take on specific portable terminal the base station can be used for distinguishing serving BS and non-serving base stations.

Even if in existing data uplink sends, also in soft handover (soft handover), implement grand diversity reception, the whole base stations that constitute active group in soft handover all receive wireless link.

But, in having imported the high-speed data packet communication of scheduler program, purpose is to reduce the power that sends data, covers higher error rate with the control that sends again with the base station, but in order to make whole base stations can receive data, portable terminal sends after improving the transmitted power of data superfluously.

On the contrary, can receive under the data conditions at the serving BS that only constitutes scheduler program, the transmission path quality change of these data in case this transfer path quality worsens, then produces the retransmission process of a plurality of these data, and throughput can descend.

Even if in considering the mobile body communication system that above content constitutes, scheduler program also can be grasped the interference volume of the base station that is provided with scheduler program self, but can not grasp the interference volume of other base station that scheduler program self is not set at once.

Therefore, the interference that causes even if the data of specific portable terminal send is in the allowed band with respect to the base station that is provided with this specific portable terminal self, also can exceed allowed band with respect to other base station that this specific portable terminal self is not set.

Thereby, even if the function that the non-serving base stations of scheduling processing also possesses the data sending power in the control portable terminal is not taken in expectation.

Function as the data sending power in the control portable terminal, the Down instruction that non-serving base stations will ask to reduce transmission rate sends to portable terminal (the Down instruction uses E-RGCH (E-DCH Relative Grant Channel:E-DCH relative distribution channel) to send by non-serving base stations), and the data sending power in the control portable terminal (with reference to following non-patent literature 1).

Thus, interference volume surpasses the transmitted power of the non-serving base stations control of allowance from the data of portable terminal transmission, can suppress the deterioration of transmission quality.

Specific as follows:

For example, the mobile body communication system that has following base station is studied, and this base station comprises: the portable terminal B that portable terminal A, the transmission rate that transmission rate is high is low, implement the scheduling of portable terminal A, B serving BS SB, do not implement the non-serving base stations NSB of the scheduling of portable terminal A, B.

In serving BS SB,, can fully guarantee interference margins by implementing the scheduling of transmission rate height, portable terminal A that transmitted power is big.

But, in non-serving base stations NSB, owing to do not implement the scheduling of portable terminal A, so can not fully guarantee interference margins with the current transmission rate of portable terminal A (transmitted power) sometimes.

In this case, non-serving base stations NSB reduces the transmitted power of portable terminal A by send the Down instruction to portable terminal A, fully guarantees interference margins.

The low portable terminal B of transmission rate is because transmitted power is little, so even if in the non-serving base stations NSB of the scheduling of not implementing portable terminal B, the interference volume increase that the power of the data that send from portable terminal B causes also tails off.

For example, study following situation, that is: in mobile communication system, the maximum number (maximum number of serving BS SB+ non-serving base stations NSB) of active group of E-DCH is set at " 5 ".

Usually, the serving BS SB of enforcement portable terminal scheduling is 1 for 1 portable terminal.

At this moment, in mobile body communication system, except that service base station SB, 4 non-serving base stations NSB of maximum existence.

The scheduling of serving BS SB enforcement transmission rate height in the mobile body communication system, the portable terminal A that transmitted power is big fully guarantees interference margins.

On the other hand, 4 non-serving base stations NSB in the mobile body communication system reduce the transmitted power of portable terminal A by send the Down instruction to portable terminal A, fully guarantee interference margins.

Therefore, portable terminal A, B in the mobile body communication system must constitute receiving circuit, can receive the Down instruction from the base station of active group of E-DCH.That is, must constitute the receiving circuit that holds 1 serving BS SB and 4 employed 5 E-RGCH of non-serving base stations NSB.

Like this, must constitute the receiving circuit of portable terminal A, B corresponding to the maximum number of active group of E-DCH, but the transmission rate of portable terminal B is low, even if it is portable terminal B sends data, also less to the influence of the interference margins of non-serving base stations NSB.

Therefore, in fact non-serving base stations NSB seldom sends the Down instruction to portable terminal B, needn't constitute the receiving circuit of portable terminal B with the receiving circuit of portable terminal A comparably.The receiving circuit of portable terminal A, B will be described in detail in the execution mode hurdle below.

There is the soft hand-off that does not use scheduler program in the prior art.The optimization of active group of quantity for example, is disclosed in the following patent documentation 1.

In patent documentation 1, following method is disclosed, promptly radio communication is implemented in portable terminal and base station, measured signal intensity or RF performance etc. are utilized two threshold values to regulate active group of quantity and (if bigger than the 1st threshold value, are then selected 1 active group, Ruo Bidi 2 threshold values are big, then select two active group.The 1st threshold value＞the 2nd threshold value).

But in patent documentation 1, only disclosing only is purpose with the save radio resources, measured signal intensity or RF performance etc., and limit the method for active group quantity, and the not shown receiving circuit scale that reduces portable terminal.

In addition, the technology that imports the high-speed data packet communication of scheduler program is disclosed in the following patent documentation 2.

In the patent documentation 2, disclose following method, promptly when the portable terminal that is positioned at soft handover area receives different mutually dispatching commands from a plurality of base stations, implemented effective E-DCH (Enhanced DCH) scheduling.

But, the unexposed receiving circuit scale that reduces portable terminal in the patent documentation 2.

Patent documentation 1: the spy opens 2002-95031 communique (paragraph sequence number [0010]-[0017], Fig. 1);

Patent documentation 2: the spy opens 2004-248300 communique (paragraph sequence number [0070]-[0090], Figure 10);

Non-patent literature 1:3GPP TS25.309V6.3.0 (2005-06).

Because existing mobile body communication system constitutes as mentioned above, even if so do not implement the non-serving base stations NSB of portable terminal A, B scheduling, also can pass through to send the Down instruction, thereby reduce the transmitted power of the high portable terminal A of transmission rate, fully guarantee interference margins to portable terminal A.But, even if different mutually portable terminal A, B mix under the situation about existing at data transmission capabilities, in system, determine the maximum number (maximum number of serving BS SB+ non-serving base stations NSB) of active group of 1 E-DCH only, so have following problem, promptly in fact receive the lower also necessary formation of portable terminal B (portable terminal that transmission rate is low) and the equal receiving circuit of portable terminal A of possibility of Down instruction from non-serving base stations NSB.

Summary of the invention

The present invention makes in order to solve above-mentioned problem, and its purpose is to provide a kind of mobile body communication system and base-station control apparatus, can reduce the circuit scale of the receiving circuit of the low portable terminal of maximum transmission rate.

In addition, the present invention also aims to provide a kind of portable terminal that reduces the circuit scale of receiving circuit.

Mobile body communication system of the present invention is set the maximum number of the non-serving base stations of being selected by base-station control apparatus according to the ability of portable terminal.

Thus, the effect that has the circuit scale of the receiving circuit that can reduce the low portable terminal of transmission rate.

Description of drawings

Fig. 1 is the pie graph of the mobile body communication system when representing portable terminal from active group of base station reception of a plurality of DCH DCH.

Fig. 2 is the pie graph of the mobile body communication system when representing portable terminal from active group of base station reception of E-DCH E-RGCH.

Fig. 3 is the pie graph of the demodulation section in the expression portable terminal.

Fig. 4 is the interference volume of expression base station and the schematic diagram of interference margins.

Fig. 5 is the pie graph of the mobile body communication system of expression embodiment of the present invention 1.

Fig. 6 is the pie graph of the portable terminal of expression embodiment of the present invention 1.

Fig. 7 is the pie graph of the base-station control apparatus of expression embodiment of the present invention 1.

Fig. 8 is the sequence chart that the expression portable terminal is notified to the step of base-station control apparatus with maximum number or the Capabilities information of active group of E-DCH.

Fig. 9 be mobile terminal main body ground carry out active group of E-DCH append (renewals) processing the time sequence chart.

Figure 10 be base-station control apparatus main body ground carry out active group of E-DCH append (renewals) processing the time sequence chart.

Figure 11 is the key diagram that expression relates to the capacity of mobile terminal (UE Capabilities) by the standardized E-DCH of 3GPP standard book.

Figure 12 is an expression Capabilities information and the corresponding routine key diagram of the maximum number of active group of E-DCH.

The detailed pie graph of the modulation portion of the portable terminal when Figure 13 is many codes of expression.

Figure 14 is the key diagram of the Capabilities supposition table of the E-DCH of expression when relating to mobile body communication system and having prepared the maximum number of active group of a plurality of E-DCH.

Embodiment

Below, in order to be described in more detail the present invention, enforcement best mode of the present invention is described with reference to accompanying drawing.

Execution mode 1

Fig. 1 is that (DCH is the abbreviation of " Dedicated Channel " to the expression portable terminal from active group of base station reception of DCH DCH, DCH is a channel of carrying out exchanges data separately, is the channel of mainly handling the lower data of speed such as sound) time the pie graph of mobile body communication system.

Here, active group of base station of DCH be for implement soft handover, from a plurality of base stations of the grand diversity reception DCH of portable terminal data.

The mobile body communication system of Fig. 1 is disclosed in the 3GPP standard book (3GPP R ' 99) of non-patent literature.(subscriber equipment: UE) in order to implement soft handover, (the active group node Bs of DCH) 2a, 2b receives DCH to portable terminal 1 from active group of base station of a plurality of DCH, but the DCH that sends from a plurality of DCH active group of base station 2a, 2b is identical data.In addition, DCH active group of base station 2a, 2b regulates the DCH transmission timing when arriving portable terminal 1.Thus, can implement soft merging, and construct the synthetic portion of RAKE etc. by the structure of 1 system.

Here, specify the DCH transmission control method regularly that DCH active group of base station 2a, 2b carry out.

Among Fig. 1, for the purpose of simplifying the description, illustrate and distributed 2, but each portable terminal 1 maximum can be distributed active group of base station of 6 DCH as DCH soft handover DCH active group of base station 2a, 2b with the base station.

In the W-CDMA system, the asynchronous each other action in base station.

That is, between active group of base station 2a of DCH and portable terminal 1 DCH of transmitting-receiving from the benchmark of active group of base station 2a of DCH regularly (for example regularly) as the benchmark of the CPICH (Common Pilot Channel) of common pilot channel postponed the timed sending of retardation Δ Ta (each independent portable terminal 1 is determined retardation Δ Ta).

For example, when soft handover, portable terminal 1 is when a plurality of DCH active group of base station 2a, 2b receive DCH, and (radio network controller: RNC) 3 transmissions of reporting the CPICH among active group of base station 2a of DCH for example regularly and retardation Δ Ta to base-station control apparatus in advance for active group of base station 2a of DCH.

If base-station control apparatus 3 is from the report of active group of base station 2a reception of DCH CPICH transmission timing with retardation Δ Ta, and then the transmission with this CPICH regularly is notified to the active group of base station 2b of DCH that constitutes soft handover end (target node b) with retardation Δ Ta.

Active group of base station 2b of DCH is if receive the transmission timing of CPICH and the notice of retardation Δ Ta from base-station control apparatus 3, then regularly and retardation Δ Ta with reference to the transmission of this CPICH, definite retardation Δ Tb that each independent portable terminal 1 is determined, so that the DCH that sends from active group of base station 2a of DCH and the DCH of own transmission portable terminal 1 as far as possible with identical timing reception, and from the benchmark fixed response time of active group of base station 2b of the DCH timed sending DCH of retardation Δ Tb late.

Thus, even if send to portable terminal 1 under the situation of DCH, when portable terminal 1 receives DCH, also can constitute by synthetic grade of RAKE that constituting of 1 system constructed in the DCH demodulation section of portable terminal 1 at a plurality of DCH active group of base station 2a, 2b.

Fig. 2 is the pie graph of the mobile body communication system when representing portable terminal from active group of base station reception of E-DCH E-RGCH.

E-RGCH is the abbreviation of " E-DCH Rel ative Grant Channel ", E-RGCH is the down direction channel that sends the request (Down instruction) of the transmission rate that reduces up-high speed packet (E-DCH), sends to portable terminal 1 from non-serving base stations 12-1,12-2.In addition, also send to portable terminal 1 from serving BS 11.

Serving BS 11 is following base stations, takes on the scheduling of portable terminal 1 is handled, and by transmission rate in the control portable terminal 1 or transmitted power etc., makes the power that sends simultaneously from a plurality of portable terminals 1 be no more than boundary.Among Fig. 2,1 portable terminal 1 only is shown, but has a plurality of portable terminals 1 usually.

Non-serving base stations 12-1,12-2 are the base stations that possesses following function, do not handle though that is: do not take on scheduling, by send the Down instruction that request reduces transmission rate, the data sending power in the control portable terminal 1 to portable terminal 1.

In the example of Fig. 2, though the not shown base station that is equivalent to DCH active group of base station 2a, the 2b of Fig. 1, promptly is equivalent to the base station of DCH active group of base station 2a, the 2b of Fig. 1 at active group of base station of DCH of serving BS 11 and non-serving base stations 12-1, the 12-2 data that to be grand diversity reception send from portable terminal 1.In other words, active group of base station of DCH can be changed into serving BS 11 or non-serving base stations 12-1,12-2.

E-DCH (Enhanced DCH) is a data channel of carrying out the up-high speed data packet communication.

E-AGCH (the absolute allocated channel of E-DCH Absolute Grant Channel:E-DCH) is a down direction channel of determining the transmission rate of up-high speed packet (E-DCH), sends to portable terminal 1 from serving BS 11.

E-HICH (E-DCH Hybrid ARQ Indicator Channel) sends that the E-DCH be used for notification service base station 11 and non-serving base stations 12-1,12-2 receives successfully or the channel of the ack/nack signal of failing.

In addition, will by serving BS 11 and the grand diversity reception of non-serving base stations 12-1,12-2 to the E-DCH transfer of data to base-station control apparatus 3.

Fig. 3 is the pie graph of the demodulation section in the expression portable terminal 1.The integral body that aftermentioned is described the portable terminal 1 among Fig. 6 constitutes.

Among Fig. 3, frequency conversion part 201 comprises faint wireless signal that antenna 114 receives, is that the RF signal (Radio Frequency) of multi-path signal is when amplifying when 115 pairs of the low noise enlarging sections of Fig. 6, the frequency of this RF signal of conversion, the signal after the output frequency conversion.

A/D transformation component 202 will be from the analog signal of frequency conversion part 201 output, be that signal transformation after the frequency translation is digital signal.

Search section 203-1 carries out the branch timing to the reception of the E-RGCH that sends from serving BS 11, if from A/D transformation component 202 receiving digital signals, then by implementing cell search process, detect this multi-path signal the transmission source base station, be serving BS 11.

Code generator 204-1 produces corresponding to the scrambling code by the detected serving BS 11 of search section 203-1.

Finger distributes the synthetic 206-1 of portion of control part 205-1 control RAKE, distributing the digital signal relate to the 1st multi-path signal that sends from serving BS 11 (below be called digital signal A-1) to finger section 206a-1, or distribute the digital signal that relates to the 2nd multi-path signal (below be called digital signal A-2) to finger section 206b-1.

Here for the purpose of simplifying the description, though, for example also can distribute the digital signal that relates to the 3rd multi-path signal, distribute the digital signal that relates to the 4th multi-path signal to finger section 206d-1 to finger section 206c-1 not to finger section 206c-1,206d-1 distribute digital signal.

Under the situation of the reception that has distributed the E-RGCH that sends from non-serving base stations 12-1, if from A/D transformation component 202 receiving digital signals, then search section 203-2 is by implementing cell search process, detect thus this multi-path signal the transmission source base station, be non-serving base stations 12-1.

Code generator 204-2 produces corresponding to the scrambling code by the detected non-serving base stations 12-1 of search section 203-2.

Finger distributes the synthetic 206-2 of portion of control part 205-2 control RAKE, distributing the digital signal relate to the 1st multi-path signal that sends from non-serving base stations 12-1 (below be called digital signal B-1) to finger section 206a-2, or distribute the digital signal that relates to the 2nd multi-path signal (below be called digital signal B-2) to finger section 206b-2.

Here for the purpose of simplifying the description, though, for example also can distribute the digital signal that relates to the 3rd multi-path signal, distribute the digital signal that relates to the 4th multi-path signal to finger section 206d-2 to finger section 206c-2 not to finger section 206c-2,206d-2 distribute digital signal.

Under the situation of the reception that distributes the E-RGCH that sends from non-serving base stations 12-2, if from A/D transformation component 202 receiving digital signals, then search section 203-3 is by implementing cell search process, detect this multi-path signal the transmission source base station, be non-serving base stations 12-2.

Code generator 204-3 produces corresponding to the scrambling code by the detected non-serving base stations 12-2 of search section 203-3.

Finger distributes the synthetic 206-3 of portion of control part 205-3 control RAKE, distributing the digital signal relate to the 1st multi-path signal that sends from non-serving base stations 12-3 (below be called digital signal C-1) to finger section 206a-3, or distribute the digital signal that relates to the 2nd multi-path signal (below be called digital signal C-2) to finger section 206b-3.

Here for the purpose of simplifying the description, though, for example also can distribute the digital signal that relates to the 3rd multi-path signal, distribute the digital signal that relates to the 4th multi-path signal to finger section 206d-3 to finger section 206c-3 not to finger section 206c-3,206d-3 distribute digital signal.

Finger section 206a-1～206d-1 of the synthetic 206-1 of portion of RAKE uses the scrambling code that is produced by code generator 204-1, extracts the digital signal of distributing control part 205-1 to distribute by finger, and this digital signal is outputed to the synthetic 206e-1 of portion in sub-district.

The synthetic 206e-1 of portion in sub-district that RAKE synthesizes the 206-1 of portion implements to handle with the high specific of the digital signal A-2 that exports from finger section 206b-1 is synthetic from the digital signal A-1 of finger section 206a-1 output.

Finger section 206a-2～206d-2 of the synthetic 206-2 of portion of RAKE uses the scrambling code that is produced by code generator 204-2, extracts the digital signal of distributing control part 205-2 to distribute by finger, and this digital signal is outputed to the synthetic 206e-2 of portion in sub-district.

The synthetic 206e-2 of portion in sub-district that RAKE synthesizes the 206-2 of portion implements to handle with the high specific of the digital signal B-2 that exports from finger section 206b-2 is synthetic from the digital signal B-1 of finger section 206a-2 output.

Finger section 206a-3～206d-3 of the synthetic 206-3 of portion of RAKE uses the scrambling code that is produced by code generator 204-3, extracts the digital signal of distributing control part 205-3 to distribute by finger, and this digital signal is outputed to the synthetic 206e-3 of portion in sub-district.

The synthetic 206e-3 of portion in sub-district that RAKE synthesizes the 206-3 of portion implements to handle with the high specific of the digital signal C-2 that exports from finger section 206b-3 is synthetic from the digital signal C-1 of finger section 206a-3 output.

Lsb decoder 207-1 deciphering outputs to this decrypted signal the E-RGCH receiving circuit 119-1 of E-RGCH acceptance division 119 by the synthetic composite signal of the synthetic 206e-1 of the portion high specific in sub-district.

Lsb decoder 207-2 deciphering outputs to this decrypted signal the E-RGCH receiving circuit 119-2 of E-RGCH acceptance division 119 by the synthetic composite signal of the synthetic 206e-2 of the portion high specific in sub-district.

Lsb decoder 207-3 deciphering outputs to this decrypted signal the E-RGCH receiving circuit 119-3 of E-RGCH acceptance division 119 by the synthetic composite signal of the synthetic 206e-3 of the portion high specific in sub-district.

Here, the situation that portable terminal 1 receives E-RGCH from serving BS 11 and non-serving base stations 12-1,12-2 as active group of base station of E-DCH is described.

Fig. 4 is the interference volume of expression base station and the schematic diagram of interference margins, and thermal noise is the unescapable noise that depends on temperature, and other area interference is the interference volume from other base station.Wherein, thermal noise and other area interference can't be distinguished in the base station.

Interference margins is the value after up reception allows to deduct the power whole received powers.

Part shown in the UE1-UE3 (UE is the abbreviation of " User Equipment ", and UE means terminal) is the received power of obtaining by the signal that sends from portable terminal 1 with the spreading code demodulation in this base station (code power).

Interference volume surpasses the base station (serving BS 11 or non-serving base stations 12-1,12-2) of allowance to be passed through to send the Down instruction that request reduces transmission rate to portable terminal 1, controls the data sending power in the portable terminal 1, guarantees the surplus of interference margins.

But, in serving BS 11 and non-serving base stations 12-1,12-2, exist with each base station independently to produce the problem that lacks interference margins.

Therefore, interference volume is all different in each base station above the content of the Down instruction of base station (serving BS 11 or non-serving base stations 12-1, the 12-2) transmission of allowance.

Like this, because the content difference of Down instruction in each base station so can not implement soft merging, need be synthesized portion 206 etc. corresponding to the RAKE of E-RGCH quantity.

In addition, the DCH of data such as the E-RGCH that serving BS 11 and non-serving base stations 12-1,12-2 send the Down instruction and processing sound is different, between the serving BS 11 and non-serving base stations 12-1,12-2 of the active group of base station as E-DCH, the timing when not carrying out portable terminal 1 arrival is regulated.

Therefore, the E-RGCH that also considers to send situation about arriving simultaneously from a plurality of base stations.

Portable terminal 1 can not be controlled from the arrival timing of the E-RGCH of serving BS 11 and non-serving base stations 12-1,12-2 transmission, so even if lsb decoder 207 grades also are difficult to carry out time-division processing.

In the example of Fig. 2, the base station number that E-DCH is active group is 3, in case and the base station number of active group of E-DCH increases, then the quantity of portable terminal 1 E-RGCH that must receive increases.

If the base station number that E-DCH is active group is 3, then as shown in Figure 3, the RAKE synthetic 206-1 of portion, 206-2 in the demodulation section of portable terminal 1,206-3 etc. install in 3 systems, in case but the base station number of active group of E-DCH increase, then corresponding to this increment, system quantities such as the synthetic portion of RAKE also increase.That is, if the quantity of active group of base station of E-DCH is increased to 3+N from 3, then the system quantity of the synthetic portion of RAKE etc. is increased to 3+N.

Like this, on viewpoints such as 1 pair of software installation influence of portable terminal degree, think and compare that the degree of influence that the quantity of active group of base station of E-DCH increases is bigger with the quantity increase of active group of base station of DCH.

Thus, clearly,, also need almost obsolete Down command reception hardware (E-RGCH receives and uses hardware) be installed with the scale identical with high-performance portable terminal A even if in the portable terminal B of the low low performance of maximum transmission rate.

In addition, E-HICH is to send that the E-DCH be used for notification service base station 11 and non-serving base stations 12-1,12-2 receives successfully or the channel of the ack/nack signal of failing as mentioned above.

Therefore, also all different to each base station from serving BS 11 with the data of the E-HICH of non-serving base stations 12-1,12-2 transmission.

Like this, because the data content difference of E-HICH in each base station so can not implement soft merging, need be synthesized portion 206 etc. corresponding to the RAKE of E-HICH quantity.

In addition, the DCH of data such as the E-HICH that sends from serving BS 11 or non-serving base stations 12-1,12-2 and processing sound is different, between the serving BS 11 and non-serving base stations 12-1,12-2 of the active group of base station as E-DCH, the timing when not carrying out portable terminal 1 arrival is regulated.

Therefore, the E-HICH that also considers to send situation about arriving simultaneously from a plurality of base stations.

Portable terminal 1 can not be controlled from the arrival timing of the E-HICH of serving BS 11 and non-serving base stations 12-1,12-2 transmission, so even if lsb decoder 207 grades also are difficult to carry out time-division processing.

Therefore, in this execution mode 1, prepare the maximum number (maximum number that E-DCH is active group) of a plurality of non-serving base stations of being selected by base-station control apparatus 3, even if the quantity of active group of base station of E-DCH increases, it is big that the hardware size of low performance portable terminal B can not become yet.That is, in active group of base station of DCH, prepare a plurality of maximum numbers that constitute the base station of non-serving base stations,,, set the maximum number of active group of E-DCH for eigenvalue according to the ability of this portable terminal 1 to constituting each portable terminal 1 of mobile body communication system.

That is, the portable terminal A high to ability sets bigger value, and as the maximum number of non-serving base stations, the portable terminal B low to ability sets less value, as the maximum number of non-serving base stations.

Fig. 5 is the pie graph of the mobile body communication system of expression embodiment of the present invention 1.

Among the figure, portable terminal 21 is the abilities that possess prior basis oneself, set the maximum number (can constitute the maximum number of base station of the non-serving base stations of oneself) of active group of E-DCH, the maximum number of active group of this E-DCH is expressed or terminals such as the portable phone of the non-function that is notified to base-station control apparatus 25 expressly or mobile PC.

Maximum number to active group of the E-DCH of portable terminal 21 is the eigenvalue of portable terminal 21, separates independently with maximum number to the non-serving base stations of other not shown portable terminal 21 and sets.

Serving BS 22 is the same with the serving BS 11 of Fig. 2, it is following base station, that is: take on the scheduling of portable terminal 21 is handled,, thereby make the power that sends simultaneously from a plurality of portable terminals 21 be no more than boundary by transmission rate in the control portable terminal 21 or transmitted power etc.

The control of the transmitted power here is meant by to the maximum transmission rate of portable terminal 21 indications, controls the transmission permission power of portable terminal 21, and is not the power control in the high-speed closed loop.

Non-serving base stations 23 is the base stations with following function, that is: non-serving base stations 12-1, the 12-2 with Fig. 2 is the same, handle though do not take on scheduling, pass through to send the Down instruction that request reduces transmission rate, thereby control the data sending power in the portable terminal 21 to portable terminal 21.

Active group of base station 2a, 2b are the same for active group of base station 24 of DCH and the DCH of Fig. 1, by implementing the transmitting-receiving of DCH with portable terminal 21, carry out the data that grand diversity reception sends from portable terminal 21 jointly with serving BS 22 and non-serving base stations 23, but do not implement the reception of E-DCH.Therefore, in active group of base station 24 of DCH, E-DCH becomes interference.

Active group of base station 24 of DCH can be changed into non-serving base stations under the condition that is no more than the maximum number of active group of maximum number of the E-DCH of portable terminal 21, under the indication of base-station control apparatus 25, change to non-serving base stations sometimes.

Like this, select in the base station (being active group of base station 24 of DCH this moment) that the base station that comprises among active group of the E-DCH comprises from active group of DCH, but it be the reasons are as follows.

Because in the up channel, (Dedicated Physical Control Channel: the pilot tone that comprises Dedicated Physical Control Channel) obtains synchronously with DPCCH, use this pilot tone to determine the phase reference of signal, so if not the base station that comprises among active group of the DCH then can not receive E-DCH.

Base-station control apparatus 25 implements these base stations 22,23,24 are divided into the processing of active group of base station of serving BS, non-serving base stations or DCH (the DCH soft handover is used the base station) according to the Data Receiving situation in the base station 22,23,24.

That is, base-station control apparatus 25 possesses under the condition that is no more than the maximum number of the non-serving base stations of portable terminal 21, selects to constitute the function of the base station of non-serving base stations.

In the example of Fig. 5, select base station 23 as non-serving base stations, select base station 24 as non-serving base stations.

At this moment, serving BS 22 becomes active group of E-DCH with the combination of non-serving base stations 23.

Fig. 6 is the pie graph of the portable terminal 21 of expression embodiment of the present invention 1, among the figure, and in the control of each handling part of control part 101 in implementing portable terminal 21, the transmission of implementation data or parameter.

Transmission buffer 102 is in case receive the data of being imported by the user from control part 101, the then temporary transient processing that keeps these data of enforcement.

DPCH sending part 103 is implemented the data that will keep in the transmission buffer 102 or is equipped on the DCH from the incident of protocol processes portion 130 outputs (for example the Capabilities information of the ability of the maximum number of active group of E-DCH or expression portable terminal 21 etc.), and sends the processing of this DCH.DPCH (Dedicated Phisical Channel) is the title that is used to carry the physical layer of DCH, is meant except that the DCH data, also comprises the channel that all comprise pilot signal or power control instruction etc., the actual information that sends.

The absolute distribution), RG (the Relateive Grant: relative distribution), and calculate the power that can be used among the E-DCH that receives from E-RGCH acceptance division 119 power management portion 104 implements the following processing: according to the AG that receives from the DCH power of DPCH sending part 103 output, by E-AGCH acceptance division 118 (Absolute Grant:.

AG is the result who utilizes scheduler program, will directly be designated as absolute value from the permission transmitted power that serving BS 22 sends to portable terminal 21.

RG is used for relatively permitting to portable terminal 21 indications the increase or the minimizing of transmitted powers.

Serving BS 21 can indicate rising, the present situation of permission transmitted power to keep 3 kinds of (DTX), following degradations.

Non-serving base stations 22 can indicate present situation to keep two kinds of (DTX), following degradations.This decline indication is the Down instruction.

The processing of the data output that transmission rate control part 105 is implemented under the indication of scheduler program of serving BS 21, keep in the control transmission buffer 102.

In addition, transmission rate control part 105 is implemented according to the dump power of the portable terminal 21 that is calculated by power management portion 104, from the SG of SG management department 128 outputs (Serving Grant: the value of the permission power of the E-DCH that control provides from scheduler program), calculate E-TFCI (E-DCHTransport Format Combination Indicator: transport format combination indicator), the E-DCH transmission block size of transmitter side or the information that relates to modulation system are encoded, and be equipped on processing on the E-TFCI (control bit).Receiver side is obtained transmission block size or modulation system according to E-TFCI (control bit), implements demodulation or decryption processing.

HARQ handling part 106 is implemented to determine as systematic bits that sends data message and processing as the ratio of the check digit of redundant bit.

Dispatch request information issuing portion 107 implements the following processing: according to spendable power from the data of transmission buffer 102 output and the E-DCH that is calculated by power management portion 104, make dispatch request information.

Encoding section 108 implements the following processing: according to from the RV that retransmits control part 110 outputs (Redundancy Version: redundancy versions) information, hybrid system bit (information bit) and check digit (error correction bit), and encrypt this mixing resultant.RV is the information of the combination of expression systematic bits and check digit.

E-DCH sending part 109 implements the following processing: consider from retransmitting the RV information of control part 110 outputs, make E-DCH be equipped on the physical channel and set the state that can send for.

Retransmitting control part 110 implements the following processing: according to the ACK/NACK information that is received by E-HICH acceptance division 127, calculate RV and RSN (Retransmissin Sequence Number: retransmission sequence number).RSN is the information that number of times is retransmitted in expression.

E-DPCCH sending part 111 implements the following processing: the E-TFCI (control bit) that will be calculated by transmission rate control part 105, the dispatch request information of being made by dispatch request information issuing portion 107 and be encrypted to the form that can send from the RSN that retransmits control part 110 outputs.

Modulation portion 112 implements the following processing: at the signal of multiplexed back each channel of spread spectrum, and be modulated into the carrier wave of expectation.

Power amplification portion 113 implements to be amplified to the processing of expectation power from the carrier wave of modulation portion 112 outputs.

The carrier wave that antenna 114 will be amplified by power amplification portion 113, be that modulation signal sends to serving BS 22, non-serving base stations 23 and active group of base station 24 of DCH, on the other hand, the carrier wave that reception sends from serving BS 22, non-serving base stations 23 and active group of base station of DCH 24, i.e. modulation signal.

Constitute maximum number notice parts or ability notice parts by DPCH sending part 103, modulation portion 112, power amplification portion 113, antenna 114 and protocol processes portion 130.

Low noise enlarging section 115 implements to be amplified to the processing of the required level of demodulation by the faint modulation signal that antenna 114 receives.

Demodulation section 116 implements the following processing: separate spread spectrum (adopting the code identical to separate spread spectrum) with the code of the source of transmission institute spread spectrum by the modulation signal of low noise enlarging section 115 amplifications, be separated into original channel signal.

CPICH acceptance division 117 is implemented the reception of common pilot channels and is handled, and the incoming level of this common pilot channel is outputed to protocol processes portion 130.

E-AGCH acceptance division 118 implements to receive from serving BS 22 processing of AG.

E-RGCH acceptance division 119 is implemented from the processing of serving BS 22 or non-serving base stations 23 reception RG.

Maximum number corresponding to active group of E-DCH is prepared E-RGCH acceptance division 119.

Constitute the power adjustment component by E-AGCH acceptance division 118, E-RGCH acceptance division 119, power management portion 104 and transmission rate control part 105.

DPCH acceptance division 120 implements to receive the processing of DCH.

P-CCPCH acceptance division 121 implements to receive the processing of report information.

E-CCPCH is the abbreviation of " Primary Common Control Physical Channel ".

Active group of management department of DCH 122 implements to confirm according to the report information that is received by P-CCPCH acceptance division 121 processing of the state of current active group (with active group of active group of different DCH of E-DCH).

Active group of control part 123 of DCH implements the following processing: the interference volume of obtaining each base station from P-CCPCH acceptance division 121 or E-AGCH acceptance division 118 etc., interference volume and current active group the state of confirming by active group of management department of DCH 122 according to each base station, determine the control content of active group of DCH, this control content is outputed to protocol processes portion 130.

Active group of management department 124 of E-DCH obtains the state of active group of current E-DCH from P-CCPCH acceptance division 121 or active group of control part 126 of E-DCH, under the indication of active group of control part 126 of E-DCH, upgrades current active group.

The relevant portion 125 of calculating calculates the common pilot channel that received by CPICH acceptance division 117, is that the power of CPICH is relevant, with relevant active group of control part 126 of E-DCH that output to of power of this CPICH.

Active group of control part 126 of E-DCH implements the following processing, that is: obtain the Capabilities information of ability of maximum number or the expression portable terminal 21 of active group of E-DCH by protocol processes portion 130, in addition, obtain the interference volume of each base station from P-CCPCH acceptance division 121 or E-AGCH acceptance division 118 etc., simultaneously, obtain the state of active group of current E-DCH from active group of management department 124 of E-DCH, in addition, obtain SG from SG management department 128, determine the control content of active group of E-DCH, this control content is outputed to protocol processes portion 130.

E-HICH acceptance division 127 is implemented to receive and is represented whether serving BS 22 and non-serving base stations 23 receive the processing of the ack/nack signal of E-DCH.Maximum number corresponding to active group of E-DCH is prepared E-HICH acceptance division 127.

SG management department 128 implements to wait the processing of upgrading SG according to the AG that is received by E-AGCH acceptance division 118 with by the RG that E-RGCH acceptance division 119 receives.

Storage part 129 is memories of the maximum number of active group of storage E-DCH or the Capabilities information that is used for base-station control apparatus 25 setting E-DCH ability active group of maximum number, expression portable terminal 21 etc. etc., and storage part 129 constitutes the maximum number memory units.

Read-only memory), (Random Access Memory: internal storage such as can be the SIM card external memory storages such as (Subscriber Identity Module) that is inserted into portable terminal 21 from the outside to RAM random access memory) storage part 129 also can be ROM (the Read Only Memory: in the portable terminal 21.

In addition, also can read in the Capabilities information of ability of maximum number or the expression portable terminal 21 of active group of the E-DCH that writes down in the SIM card, this information of reading in is written in the internal RAM of portable terminal 21.

The Capabilities information of the ability of maximum number that E-DCH is active group or expression portable terminal 21 is eigenvalues of portable terminal 21, can be 1 value, also can be a plurality of values.

In addition, in storage part 129, in the mode that illustrates below, the Capabilities information of the ability of maximum number that storage E-DCH is active group or expression portable terminal 21.

The 1st mode be the Capabilities information of ability with the maximum number of active group of E-DCH or expression portable terminal 21 as initial value, be stored in the storage part 129 of portable terminal 21.

The 2nd mode is to obtain from equipment such as base-station control apparatus 25 or base station 22,23,24 or mobile body communication systems by utilizing to communicate by letter, thereby is stored in the storage part 129 of portable terminal 21.

The 3rd mode is the initial value that the protocol processes portion 130 of for example portable terminal 21 comes storage in the storage part 129 of handle mobile terminal 21, and, be stored in the storage part 129 of portable terminal 21 the Capabilities information of this result as the ability of the maximum number of active group of E-DCH or expression portable terminal 21.

At this moment, it also can be following mode, that is: the initial value with storage in the storage part 129 of portable terminal 21 sends to base station 22,23,24, base-station control apparatus 25 or miscellaneous equipment, this base station 22,23,24, base-station control apparatus 25 or miscellaneous equipment are handled initial value, with the Capabilities information of this result, be stored in the storage part 129 of portable terminal 21 as the ability of the maximum number of active group of E-DCH or expression portable terminal 21.

Protocol processes portion 130 is in case of necessity with reference to the Capabilities information by the ability of the maximum number of active group of the E-DCH of storage part 129 storage or expression portable terminal 21.

Protocol processes portion 130 the quantity of active group of current E-DCH than storage part 129 under the maximum number of active group of E-DCH of the storage situation about lacking, or under the beguine situation few, implement the handling of append request of non-serving base stations according to the maximum number of active group of the E-DCH of the unique setting of Capabilities information of the ability of expression portable terminal 21.In addition, under the situation more than the quantity of active group of current E-DCH is the maximum number of active group of E-DCH of storage in the storage part 129, or be according to the situation more than the maximum number of active group of the E-DCH of the unique setting of Capabilities information of the ability of expression portable terminal 21 under, the handling of update request of implementing non-serving base stations.

In addition, protocol processes portion 130 is handling parts of implementing the protocol processes of communication.

Constitute by DPCH sending part 103, modulation portion 112, power amplification portion 113, antenna 114 and protocol processes portion 130 and to append the update request parts.

Fig. 7 is the pie graph of the base-station control apparatus 25 of expression embodiment of the present invention 1.Among the figure, control part 301 is implemented the processing of each handling part of control base-station control apparatus 25.

Transmission control part 302 implements to carry out the transmission control and treatment of faultless data link.

RRM portion 303 manages interference volume or load etc. in Radio Resources such as managing frequency or code.

Interference volume Storage Department 304 is implemented the processing of the interference volume of keeping subordinate base station 22,23,24.

Path loss Storage Department 305 implements the following processing: keeping subordinate's base station 22,23,24 portable terminals of being grasped 21 and the path loss between the base station 22,23,24.

Active group of management department 306 of DCH implements the following processing: in management subordinate's the base station 22,23,24, current which base station is active group of base station of DCH.

Active group of control part of DCH 307 judges which base station is contained among active group of the DCH, implements any one base station is contained in control among active group of the DCH.

Signaling traffic load Storage Department 308 is implemented the processing of keeping by the signaling quantity of base station 22,23,24 mensuration.

Maximum number Storage Department 309 implements the following processing: base-station control apparatus 25 becomes the portable terminal 21 of Serving RNC (Serving RNC is a base-station control apparatus of taking on the management of specific portable terminal) to each, and keeping relates to active group of maximum number of E-DCH of this portable terminal 21.

In the maximum number Storage Department 309, in the mode that illustrates below, the maximum number that keeping E-DCH is active group.

The 1st mode be by will be in the portable terminal 21 maximum number of active group of E-DCH of storage come the mode of keeping via base station 22,23,24 transmission from portable terminal 21.At this moment, maximum number Storage Department 309 formation maximum numbers are obtained parts.

The 2nd mode is that the Capabilities information of storage in the portable terminal 21 is transmitted via base station 22,23,24 from portable terminal 21, handling parts such as RRM portion 303 or base-station control apparatus 25 are set the maximum number of active group of E-DCH uniquely according to this Capabilities information, thereby take care of this maximum number.At this moment, RRM portion 303 constitutes the maximum number set parts.

Active group of management department of E-DCH 310 implements in management subordinate's the base station 22,23,24, and current which base station becomes the processing of active group of base station of E-DCH.

Active group of control part of E-DCH 311 implemented following control, that is: with the active group of maximum number of E-DCH of keeping in the maximum number Storage Department 309 as the upper limit, the base station shown in the appointed information of base station of appending that comprises incident of appending that will send from portable terminal 21 or the update event is contained among active group of the E-DCH.

Active group of control part of E-DCH 311 constitutes the non-serving base stations alternative pack.

Fig. 8 is the sequence chart that expression portable terminal 21 is notified to the step of base-station control apparatus 25 with maximum number or the Capabilities information of active group of E-DCH.

Fig. 9 be portable terminal 21 main bodys ground carry out active group of E-DCH append (renewals) processing the time sequence chart.

Below, action is described.

In the storage part 129 of portable terminal 21, the maximum number that the E-DCH that storage is set according to the ability of this portable terminal 21 is active group.

The maximum number that the E-DCH of storage in the storage part 129 of portable terminal 21 is active group is that each portable terminal is intrinsic, if portable terminal 21 is the high portable terminal A of performance that for example support two-forty, then for example set the maximum number of active group of E-DCH for " 5 ", if the low portable terminal B of performance that only sends with low rate then sets the maximum number of active group of E-DCH for all the time

“3”。

Here, establish the maximum number of active group of storage E-DCH in the storage part 129 of portable terminal 21, but but the also Capabilities information of the ability of storage representation portable terminal 21 replaces the maximum number of active group of E-DCH.

The protocol processes portion 130 of portable terminal 21 obtains maximum number or the Capabilities information of active group of E-DCH from storage part 129, and maximum number or the Capabilities information of active group of this E-DCH temporarily is stored in the transmission buffer 102.

The DPCH sending part 103 of portable terminal 21 implements the following processing (step ST1), promptly when the maximum number of active group with E-DCH in protocol processes portion 130 or Capabilities information stores are in transmission buffer 102, make the maximum number of active group of the E-DCH that is stored in this transmission buffer 102 or Capabilities information embarkation on DCH, send this DCH.

The channel that uses in the carrying of maximum number that E-DCH is active group or Capabilities information also can be the up channel beyond the DCH.

When the modulation portion 112 of portable terminal 21 is implemented DCH transmission processing when DPCH sending part 103, with the channel signal after send handling (maximum number that overlapping E-DCH is active group or the signal of Capabilities information) with for example from the multiplexed back of other channel signal spread spectrum of E-DCH sending part 109 outputs, and be modulated into the carrier wave of expectation.

The power amplification portion 113 of portable terminal 21 implements to be amplified to when from modulation portion 112 reception carriers, with this carrier wave the processing of expectation power.

The carrier wave of antenna 114 by will amplifying by power amplification portion 113, be that modulation signal sends to serving BS 22, non-serving base stations 23 and active group of base station 24 of DCH, thereby this modulation signal is sent to base-station control apparatus 25.

The transmission control part 302 of base-station control apparatus 25 is if receive from the modulation signal of portable terminal 21 transmissions through the base station, this modulation signal of demodulation then outputs to RRM portion 303 with the maximum number of active group of overlapping E-DCH or the channel signal of Capabilities information.

The RRM portion 303 of base-station control apparatus 25 when the channel signal of the maximum number of active group of the E-DCH that is overlapping of the channel signal from the output of transmission control part 302, with the maximum number former state keeping of active group of this E-DCH in maximum number Storage Department 309.

On the other hand, if from the channel signal of the transmission control part 302 output channel signal of Capabilities information that has been overlapping, then set the maximum number of active group of E-DCH uniquely, this maximum number is taken care of in maximum number Storage Department 309 (step ST2) according to this Capabilities information.

For example, at the ability height of Capabilities information representation portable terminal 21, support under the situation of two-forty, set the maximum number of active group of E-DCH for " 5 ", ability at this Capabilities information representation portable terminal 21 is low, do not support under the situation of two-forty, sets the maximum number of active group of E-DCH for " 3 ".

In addition, even if from the channel signal of the transmission control part 302 output channel signal of Capabilities information that has been overlapping, RRM portion 303 also can be with the keeping of Capabilities information former state in maximum number Storage Department 309, when active group of control part of E-DCH described later 311 confirmed the maximum number of active group of E-DCH, set the maximum number of active group of E-DCH according to the Capabilities information of keeping in the maximum number Storage Department 309.

In the example of Fig. 8, portable terminal 21 is notified to base-station control apparatus 25 with maximum number or the Capabilities information of active group of E-DCH, but, for example when base-station control apparatus 25 had kept grasping the information (but for example maximum transmitted power) of the ability of portable terminal 21, portable terminal 21 needn't be to maximum number or the Capabilities information of active group of base-station control apparatus 25 notice E-DCH.

Under the situation of the maximum number of not notifying active group of E-DCH or Capabilities information, has following advantage.

(1) do not need the signaling of newly appending.

(2) do not need the maximum number Storage Department 309 of base-station control apparatus 25.

(3) compare with the maximum number of active group of E-DCH of notice or the situation of Capabilities information, in the base-station control apparatus 25 with the interchangeability height of prior art (R ' 99).

Below, describe active group of E-DCH append (renewal) in detail and handle.

The protocol processes portion 130 of portable terminal 21 is for example by measuring the incoming level of the common pilot channel that is received by CPICH acceptance division 117, monitor the incoming level of contiguous a plurality of base stations, when this incoming level takes place was base station more than the defined threshold, the incident of appending (step ST11) of active group of E-DCH took place.

In addition, protocol processes portion 130 obtains in the storage part 129 maximum number of active group of the E-DCH of storage, outputs to active group of control part 126 of E-DCH (step ST12).

In storage part 129 under the situation of storage Capabilities information, set the maximum number of active group of E-DCH according to this Capabilities information, this maximum number is outputed to active group of control part 126 of E-DCH.

The incident of appending that E-DCH is active group must be distinguished in the incident of appending of active group of receiver side and DCH.Therefore, the incident of appending as active group of E-DCH must redefine incident.

Perhaps, will active group of information element that appends incident of E-DCH take place in receiver side identification and be additional to appending on the incident of active group of DCH, sent the incident of appending of active group of the DCH that has added this information element to receiver side.

The update event that E-DCH the is active group also incident of appending with active group of E-DCH is the same, must be distinguished with the update event of active group of DCH.

The incident of appending of active group of E-DCH takes place in active group of control part of the E-DCH of portable terminal 21 126 when protocol processes portion 130, when protocol processes portion 130 receives the maximum number of active group of E-DCH, the quantity (step ST13) of active group of the current E-DCH that manages in the maximum number of active group of this E-DCH and active group of management department 124 of E-DCH relatively.

Active group of control part 126 of E-DCH in the quantity of active group of current E-DCH after a little while than the maximum number of active group of E-DCH, the incident of appending that permission E-DCH is active group.

On the other hand, reached in the quantity of active group of current E-DCH under the situation of maximum number of active group of E-DCH, or active group of E-DCH of permission append incident the time, under the situation of the quantity that E-DCH is active group above the maximum number of active group of E-DCH, the incident of appending that refusal E-DCH is active group, the update event that generation E-DCH is active group.

Here, show following content: reached in the quantity of active group of current E-DCH under the situation of maximum number of active group of E-DCH, maybe when active group of E-DCH of permission append incident the time, under the situation of the quantity that E-DCH is active group above the maximum number of active group of E-DCH, refuse the incident of appending of active group of E-DCH, thereby the update event of active group of E-DCH takes place.But also can the update event that active group of E-DCH takes place as follows.

Promptly, the protocol processes portion 130 of portable terminal 21 measures the incoming level of the common pilot channel that is received by CPICH acceptance division 117, when this incoming level is compared with defined threshold, except that the threshold value of appending incident generation usefulness, also prepare the threshold value of update event generation usefulness, not only with the incoming level of this common pilot channel and the threshold of appending incident generation usefulness, also with the threshold of update event generation usefulness.

Afterwards, according to the comparative result of two threshold values, the update event of active group of the incident of appending of active group of E-DCH or E-DCH takes place.

When the update event of active group of the incident of appending that active group of E-DCH takes place or E-DCH, also can under other condition different, take place with the threshold value of incoming level.

The protocol processes portion 130 of portable terminal 21 when active group of active group of control part of E-DCH 126 permission E-DCH append incident the time, this incident of appending is outputed to DPCH sending part 103 (step ST14), when the update event of active group of E-DCH takes place active group of control part of E-DCH 126, this update event is outputed to DPCH sending part 103 (step ST15).

Thus, with the situation that maximum number of active group of E-DCH etc. sends to base-station control apparatus 25 is the same, the incident of appending or the update event of active group of E-DCH sent to base-station control apparatus 25 through the base station from portable terminal 21.

Currently implement the signaling of E-DCH, but also consider in the future not use DPCH, and implement with E-DCH with DPCH.

At this moment, considering to append incident or update event etc. all sends with E-DCH or other channel without DPCH.

Incident is appended with this or update event outputs to active group of control part 311 of E-DCH by the RRM portion 303 of base-station control apparatus 25 when incident of appending that receives active group of the E-DCH that sends from portable terminal 21 or update event (step ST16).

Active group of control part 311 of the E-DCH of base-station control apparatus 25 obtained this and appended the appointed information of appending the base station that comprises in incident or the update event when incident of appending that receives active group of E-DCH from RRM portion 303 or update event.

Active group of control part of E-DCH 311 be if obtain the appointed information of appending the base station, and the base station that the maximum number of then implementing active group of E-DCH that will keeping in the maximum number Storage Department 309 is made as the upper limit, represent this appointed information is contained in the control among active group of the E-DCH.

Be under the situation of situation of Fig. 5 in the current structure of mobile body communication system, receive active group of E-DCH append incident the time, when for example the maximum number of active group of E-DCH is " 3 ", the quantity that then current E-DCH is active group is " 2 " (serving BS 22 and the base station of non-serving base stations 23 for active group of E-DCH), exists 1 base station is contained in surplus among active group of the E-DCH.If active group of base station 24 of DCH be appointed as append the base station, then implement active group of base station 24 of DCH is contained in control among active group of the E-DCH.

In addition, when receiving the update event of active group of E-DCH,, then new base station has not been contained in the surplus among active group of the E-DCH for example if the maximum number of active group of E-DCH is " 2 ".If active group of base station 24 of DCH be appointed as append the base station, then be implemented in when being contained in active group of base station 24 of DCH among active group of the E-DCH control of deletion non-serving base stations 23 from active group of base station of E-DCH.

The RRM portion 303 of base-station control apparatus 25 is when receiving from active group of control part of E-DCH 311 when active group of base station 24 of DCH be appended to the request of active group of E-DCH, and the append request of active group of E-DCH is sent to active group of base station 24 of DCH (step ST17).

In addition, at active group of control part 311 when active group of base station 24 is appended to active group of E-DCH with DCH from E-DCH, if receive the request of deletion non-serving base stations 23 from active group of base station of E-DCH, then the update request with active group of E-DCH sends to active group of base station 24 of DCH (step ST17).

Signaling traffic load (the signaling quantity of using in E-AGCH transmission, E-RGCH transmission and the E-HICH transmission etc., code quantity, transmitted power etc.) is measured in active group of base station 24 of DCH when append request that receives active group of E-DCH from base-station control apparatus 25 or update request.

Active group of base station of DCH 24 judges then whether signaling traffic load has surplus (step ST18) if measure signaling traffic load.

Whether for example, whether arrive specified quantity by judging the signaling quantity in the current use, judging has surplus.

In addition, the signaling quantity in current use, also can judge the surplus of the hardware handles ability of active group of base station 24 of DCH.

DCH does not have at signaling traffic load active group of base station 24 under the situation of surplus, notifies owing to current signaling deficiency to base-station control apparatus 25, thus can not implement append (step ST 19) of active group of E-DCH, and end process.

On the other hand, have at signaling traffic load under the situation of surplus, can implement append (the step ST20) of active group of E-DCH to base-station control apparatus 25 notices.

If active group of control part of the E-DCH of base-station control apparatus 25 311 be from active group of base station 24 reception notifications of DCH, then according to this content of announcement, judges whether to implement appending or upgrading (step ST21) of active group of E-DCH.

The transmission control part 302 of base-station control apparatus 25 is judged as can implement the appending of active group of E-DCH the time at active group of control part 311 of E-DCH, and the indication of appending of active group of E-DCH is sent to active group of base station 24 of DCH (step ST22).

In addition, when active group of control part 311 of E-DCH is judged as the renewal that can implement active group of E-DCH, the renewal indication (appending the renewal indication of indication usefulness) of active group of E-DCH is sent to active group of base station 24 of DCH, simultaneously, the renewal indication (the renewal indication of deletion indication usefulness) with active group of E-DCH sends to non-serving base stations 23 (step ST22).

Among Fig. 9, in order to simplify accompanying drawing, not shown non-serving base stations 23 from active group of deletion of E-DCH.

Active group of base station 24 of DCH is when receiving the appending indication or upgrade indication of active group of E-DCH from base-station control apparatus 25, that implements active group of E-DCH appends processing (step ST23).

When handled when appending of active group of enforcement E-DCH active group of base station 24 of DCH, will append finishes dealing with was notified to base-station control apparatus 25 (step ST24).

Non-serving base stations 23 is implemented the deletion of active group of E-DCH and is handled when receiving the renewal indication of active group of E-DCH from base-station control apparatus 25.

When non-serving base stations 23 was handled when the deletion of implementing active group of E-DCH, deletion finished dealing with was notified to base-station control apparatus 25.

The transmission control part 302 of base-station control apparatus 25 when receive from the active group of base station of DCH 24 that is appended to active group of E-DCH append processing finish notice the time, through the base station, appending indication or upgrading indication and send to portable terminal 21 (step ST25) active group of E-DCH.

Active group of management department 124 of the E-DCH of portable terminal 21 when P-CCPCH acceptance division 121 when base-station control apparatus 25 receives appending indication or upgrading indication of active group of E-DCH, under the indication of active group of control part 126 of E-DCH, upgrade current active group (step ST26).

When the protocol processes portion 130 of portable terminal 21 implements appending processing or upgrading processing of active group of E-DCH when active group of management department of E-DCH 124, be notified to base-station control apparatus 25 (step ST27) with appending processing or upgrading finishing of processing.

Fig. 9 shows portable terminal 21 main bodys ground and carries out the sequence of the appending of active group of E-DCH (renewals) when handling as mentioned above, and Figure 10 show base-station control apparatus 25 main bodys ground carry out active group of E-DCH append (renewal) processing the time sequence.

Below, illustrate that active group of the E-DCH's that implements on base-station control apparatus 25 main bodys ground appends (renewals) processing.

The protocol processes portion 130 of portable terminal 21 is notified to base-station control apparatus 25 (step ST31) with the incoming level or the information on path loss of CPICH acceptance division 117.

The RRM portion 303 of base-station control apparatus 25 is stored in this incoming level and information on path loss in the path loss Storage Department 305 when incoming level that receives the CPICH acceptance division 117 that sends from portable terminal 21 or information on path loss (step ST32).

Interference volume and signaling traffic load are measured in base-station control apparatus 25 subordinates' base station 22,23,24, and this interference volume and signaling traffic load are notified to base-station control apparatus 25 (step ST33, ST35).

The RRM portion 303 of base-station control apparatus 25 is if receive interference volume and the signaling traffic load (step ST34, ST36) that sends from portable terminal 21, then this interference volume is stored in the interference volume Storage Department 304, this signaling traffic load is stored in the signaling traffic load Storage Department 308.

The RRM portion 303 of base-station control apparatus 25 is with reference to the signaling traffic load of keeping in the interference volume of keeping in the information on path loss, interference volume Storage Department 304 of keeping in the path loss Storage Department 305 and the signaling traffic load Storage Department 308, judges whether to append the base station (step ST37) that comprises among active group of the E-DCH.

The incident of appending (step ST38) of active group of E-DCH takes place when being judged as must append the base station that comprises among active group of the E-DCH time in RRM portion 303.

Active group of control part 311 of the E-DCH of base-station control apparatus 25 when receive from RRM portion 303 active group of E-DCH append incident the time, confirm the maximum number (step ST39) of active group of the E-DCH of keeping in the maximum number Storage Department 309.

In maximum number Storage Department 309, during the maximum number of active group of storage Capabilities information but not E-DCH, set the maximum number of active group of E-DCH according to this Capabilities information.

Active group of control part 311 of E-DCH when the maximum number of active group of the E-DCH that confirms portable terminal 21, the quantity (step ST40) of active group of the current E-DCH that manages in the maximum number of active group of this E-DCH and active group of management department 310 of E-DCH relatively.

Active group of control part 311 of E-DCH in the quantity of active group of current E-DCH after a little while than the maximum number of active group of E-DCH, the incident of appending that permission E-DCH is active group.

On the other hand, when the quantity of active group of current E-DCH has reached the maximum number of active group of E-DCH, but perhaps active group of E-DCH append incident the time, under the situation of quantity of active group of E-DCH above the maximum number of active group of E-DCH, refuse the incident of appending of active group of E-DCH, thereby the update event of active group of E-DCH takes place.

The transmission control part 302 of base-station control apparatus 25 when active group of active group of control part of E-DCH 311 permission E-DCH append incident the time, the indication of appending of active group of E-DCH is sent to active group of base station 24 of DCH (step ST41).

In addition, when the update event of active group of E-DCH takes place in active group of control part of E-DCH 311, the renewal indication (appending the renewal indication of indication usefulness) of active group of E-DCH is sent to active group of base station 24 of DCH, simultaneously, the renewal indication (the renewal indication of deletion indication usefulness) with active group of E-DCH sends to non-serving base stations 23 (step ST42).

In addition, among Figure 10, in order to simplify accompanying drawing, not shown non-serving base stations 23 from active group of deletion of E-DCH.

Active group of base station of DCH 24 be if receive appending indication or upgrading indication of active group of E-DCH from base-station control apparatus 25, and that then implements active group of E-DCH appends processing (step ST43).

Active group of base station of DCH 24 is if implement the processing of appending of active group of E-DCH, and then will appending finishes dealing with is notified to base-station control apparatus 25 (step ST44).

Non-serving base stations 23 is then implemented the deletion of active group of E-DCH and is handled if indicate from the renewal of active group of base-station control apparatus 25 reception E-DCH.

Non-serving base stations 23 is then finished dealing with deletion and is notified to base-station control apparatus 25 if implementing the deletion of active group of E-DCH handles.

The transmission control part 302 of base-station control apparatus 25 when receive from the active group of base station of DCH 24 that is appended to active group of E-DCH append processing finish notice the time, through the base station, appending indication or upgrading indication and send to portable terminal 21 (step ST45, ST46) active group of E-DCH.

Active group of management department 124 of the E-DCH of portable terminal 21 when P-CCPCH acceptance division 121 when base-station control apparatus 25 receives appending indication or upgrading indication of active group of E-DCH, under the indication of active group of control part 126 of E-DCH, upgrade current active group (step ST47).

The protocol processes portion 130 of portable terminal 21 handles or upgrades when handling when active group of management department of E-DCH 124 implements appending of active group of E-DCH, will append to handle or upgrade to finish dealing with to be notified to base-station control apparatus 25 (step ST48).

From as can be known above-mentioned, according to this execution mode 1, owing to adopted following structure, that is: prepare the maximum number of a plurality of non-serving base stations of selecting by base-station control apparatus 25, from the maximum number of a plurality of non-serving base stations of preparing, according to the ability of portable terminal 21, set maximum number, so can be achieved as follows effect, even portable terminal 21 is portable terminal B that for example transmission rate is low, then can reduce the circuit scale of the receiving circuit of portable terminal 21.

Below, specify the effect of this execution mode 1.

The effect of portable terminal 21 at first, is described.

From the maximum number of a plurality of non-serving base stations of preparing, ability according to portable terminal 21, setting is applicable to the maximum number of the non-serving base stations of this portable terminal 21, be stored in the storage part 129, so can be achieved as follows effect, be under the situation of portable terminal B (the low portable terminal of maximum transmission rate that can send) of low performance at portable terminal 21 promptly, (for example the E-RGCH acceptance division 119 needn't to adopt the scale identical with high performance portable terminal A (the high portable terminal of maximum transmission rate that can send) that the hardware that the Down command reception uses is installed, RAKE synthesizes portion 206, lsb decoder 207).

In addition, whether received with regard to the hardware (E-HICH acceptance division 127) that the ACK/NACK message pick-up of E-DCH uses, also can be achieved as follows effect, that is: needn't adopt the scale identical to install with high performance portable terminal A from base station 22,23,24 with regard to expression.That is,, then can be achieved as follows effect: can reduce hardware such as E-RGCH acceptance division 119 or E-HICH acceptance division 127 if portable terminal 21 is portable terminal B of low performance.In addition, because high performance portable terminal A can carry out the transmission of two-forty, thus need the quantity of consideration to the non-serving base stations of the influence of interference margins, more than the portable terminal B of low performance usually.

In this execution mode 1, because the maximum number of preparing active group of a plurality of E-DCH is as mobile body communication system, so as prior art, with regard to the interference volume among the high performance portable terminal A surpasses the non-serving base stations of allowance, may command is from the transmitted power of the data of portable terminal A transmission, do not make the disturb worsens of up transmission, can deal with problems non-serving base stations.

Below, the effect of mobile body communication system integral body is described.

The effect of the E-RGCH acceptance division 119 in can reducing portable terminal 21 or the hardware of E-HICH acceptance division 127, also can realize reducing assignment of code in the non-serving base stations or transmitted power etc., reduce E-DCH in the non-serving base stations and receive and handle, reduce the effects such as the traffic that the E-DCH that sends to base-station control apparatus 25 from non-serving base stations receives data.

Execution mode 2

In above-mentioned execution mode 1, show from the maximum number of a plurality of non-serving base stations of preparing, set the situation of maximum number according to the ability of portable terminal 21, but in present embodiment 2, specified the establishing method of this maximum number.

In 3GPP (3rd Generation Partnership Project) standard book, admitted existing of the ability (UE Capabilities) as portable terminal, the low performance portable terminal B that can not send with higher transmission rate.

Figure 11 is the key diagram that expression relates to the capacity of mobile terminal (UE Capabilities) by the standardized E-DCH of 3GPP standard book, and among the figure, TTI is the abbreviation of " Transmission Timing Interval ".

Figure 12 is an expression Capabilities information and the corresponding routine key diagram of the maximum number of active group of E-DCH.

Described in above-mentioned execution mode 1, the portable terminal A that the ability of expecting usually is high increases the maximum number of active group of E-DCH, and the portable terminal B that ability is low reduces the maximum number of active group of E-DCH.

Do not limit the concrete number range of size of the maximum number of active group of E-DCH especially, but the maximum number that it has been generally acknowledged that active group of E-DCH is got the scope below 6, under the less situation of the maximum number of active group of E-DCH, thinks about 3-4, under bigger situation, think about 5-6.

(1), considers that portable terminal 21 keeps the maximum number of active group of E-DCH, is notified to base-station control apparatus 25 with this maximum number as direct Notification Method.

As concrete Notification Method, the agreement that is called RRC (Radio Resouce Control) by utilization sends layer 3 message, and is notified to base-station control apparatus 25.

Owing to can specify independently with existing UE Capabilities definition, so have the high advantage of the degree of freedom of setting.

(2) the indirect Notification Method that is associated as the UE Capabilities that relates to E-DCH is considered that portable terminal 21 keeps Capabilities information, and this Capabilities information is notified to base-station control apparatus 25.

As the maximum number of active group of concrete E-DCH and the correlating method of UE Capabilities, illustrate 5 below, but this moment, base-station control apparatus 25 induction signalizations only be the kind sequence number, if know the sequence number of kind, then can derive the maximum number of active group of actual E-DCH, so can reduce the amount of signaling.

As the 1st example, consider ' kind ' of Capabilities information is made as key, set the maximum number of active group of E-DCH.

Kind means classification, and usually, the quantity of kind is big more, and then the ability of portable terminal 21 is high more.

Therefore, distribute big more maximum number (with reference to Figure 12 to the many more portable terminals of kind quantity

(1))。

In Figure 12 (1), show kind 1 and be " 1 ", kind 2 is " 1 ", and kind 3 is " 2 ", and kind 4 is " 3 ", kind 5 is the situation of " 4 ", but this is an example, with regard to kind, to the maximum number of active group of the high overabsorption E-DCH of maximum transmission rate, on the contrary, to the low few maximum number that distributes active group of E-DCH of maximum transmission rate.

As the 2nd example, the maximum of the physical channel that consideration can send sends the number (maximum number of E-DCH code: Maximum number ofE-DCH codes transmited) be made as key, set the maximum number of active group of E-DCH.

Code means the channelization codes of the spreading code of using as channel separation.

Use a plurality of channelization codes to mean simultaneously in order to send E-DCH a plurality of physical channels are used for E-DCH, this state is called many codes.

The detailed pie graph of the modulation portion 112 of the portable terminal 21 when Figure 13 is many codes of expression.Figure 13 shows the situation of the kind of Figure 11 for " 6 ".

Usually, the many more portable terminals of number of many codes (physical channel of Fa Songing simultaneously) in E-DCH sends, are called as high performance portable terminal.

Therefore, the maximum of this physical channel sends the many portable terminals of number, the overstepping the bounds of propriety big maximum number (with reference to Figure 12 (2)) of joining.

Allotment shown in Figure 12 (2) is an example, with regard to the maximum of physical channel sends number, and to the maximum number of active group of the big overabsorption E-DCH of hardware size, on the contrary, to the maximum number of active group of the little few distribution E-DCH of hardware size.

As the 3rd example, the minimum spread spectrum coefficient that consideration can send (MSF:Minimum spreading factor) is made as key, sets the maximum number of active group of E-DCH.

Spread spectrum coefficient SF is the coefficient what chips expression spreads to 1 code element (symbol).

The chip-count that per second can transmit depends on chip rate, is fixed value.Chip rate in the current W-CDMA system is 3.84MHz.That is, the chip-count transmitted of per second is 3.84Mchip/s.

The little portable terminal of spread spectrum coefficient SF increases the code element number that per second can send more.

In addition, SF is more little for spread spectrum coefficient, then can't obtain gain more, needs transmitted power more.

Thus, support the portable terminal of less spread spectrum coefficient SF, in E-DCH sends, be called high performance portable terminal more.

Therefore, can be with the portable terminal of less spread spectrum coefficient SF transmission, the overstepping the bounds of propriety big maximum number (with reference to Figure 12 (3)) of joining.

Allotment shown in Figure 12 (3) is an example, with regard to the minimum spread spectrum coefficient that can send, and to the maximum number of active group of the high overabsorption E-DCH of maximum transmission rate, on the contrary, to the maximum number of active group of the low few distribution E-DCH of maximum transmission rate.And, to the maximum number of active group of the big overabsorption E-DCH of hardware size, on the contrary, to the maximum number of active group of the little few distribution E-DCH of hardware size.

As the 4th example, consider that TTI length with E-DCH as key, sets the maximum number of active group of E-DCH.

TTI is the abbreviation of " Transmission Timing Interval ".

At first, consider the TTI length of E-DCH.In the standard book (the standard book before the standardization E-DCH) of 3GPP R ' 99, do not support 2msTTI.That is, append the stage, have the surplus that to support 2msTTI (for example portable terminal install surplus) and be called as high performance portable terminal at hardware in the E-DCH function.

All portable terminals all can send under the 10msTTI, and 2msTTI only limits to by high performance portable terminal support.

Therefore,, then be considered as high performance portable terminal,, do not support 2msTTI, then be considered as the portable terminal of low performance, reduce the maximum number (with reference to Figure 12 (4)) of active group of E-DCH if increase the maximum number of active group of E-DCH if support 2msTTI.

In DCH (the standard book of 3GPP R ' 99), TTI length is opposite with above-mentioned situation with the consideration method of the ability of portable terminal, and TTI length is long more, gets over the memory that need should receive, so think high performance portable terminal.

In addition, also other consideration.When the hypothesis portable terminal sent the data of same amount, TTI length was compared with 10ms, thinks that when TTI length is for 2ms be peak rate, we can say to uprise.Therefore,, then be considered as high performance portable terminal, increase the maximum number of active group of E-DCH,, then be considered as the portable terminal of low performance, reduce the maximum number (with reference to Figure 12 (4)) of active group of E-DCH if do not support 2msTTI if support 2msTTI.Allotment shown in Figure 12 (4) is an example, with regard to the TTI length of E-DCH, and to the maximum number of active group of the high overabsorption E-DCH of maximum transmission rate, on the contrary, to the maximum number of active group of the low few distribution E-DCH of maximum transmission rate.

Allotment shown in Figure 12 (4) is an example, with regard to the TTI length of E-DCH, and to the maximum number of active group of the big overabsorption E-DCH of hardware size, on the contrary, to the maximum number of active group of the little few distribution E-DCH of hardware size.

As the 5th example, consideration as key, is set the maximum number of active group of E-DCH with transmission block size (size of the data unit of transmission).

The big expression of maximum transmission block size is its disposal ability height only, thus be considered as high performance portable terminal, and distribute the bigger maximum number (with reference to Figure 12 (5)) of active group of E-DCH.

Allotment shown in Figure 12 (5) is an example, with regard to the transmission block size, and to the maximum number of active group of the high overabsorption E-DCH of maximum transmission rate, on the contrary, to the maximum number of active group of the low few distribution E-DCH of maximum transmission rate.And, to the maximum number of active group of the big overabsorption E-DCH of hardware size, on the contrary, to the maximum number of active group of the little few distribution E-DCH of hardware size.

The 1st example-the 5th example is example just, also can set the maximum number of active group of E-DCH corresponding to other Capabilities information that relates to E-DCH.

In addition, the maximum number that the E-DCH of appointment in the 1st example-the 5th example is active group is a value as an example, and is in fact different.

Figure 14 is the key diagram of the Capabilities supposition table of the E-DCH of expression when relating to mobile body communication system and preparing the maximum number of active group of a plurality of E-DCH.

In the example of Figure 14, in the maximum ordered series of numbers of active group of the E-DCH of right-hand member, insert the identical value of value with Figure 12 (3), but also can insert the value of Figure 12 (1), (2), (4), (5) or value in addition.

(3), for example need not to carry out signalling especially and determine the method for number in advance as the non-Notification Method of expressing that is associated with the UE Capabilities that relates to 3GPP R ' 99.

Find and to judge it is the out of Memory of the high portable terminal of ability,, set the maximum number of active group of E-DCH uniquely according to this information.

As the high pointer of expression ability, but " UE power grade (the UE Power Class) " of the maximum transmitted power of consideration expression portable terminal or receivable maximum TTI length etc." UE power grade " is big, and then maximum transmit power is big.Therefore, " UE power grade " is big, then is considered as high performance portable terminal, increases the maximum number of active group of E-DCH, and " UE power grade " is little, then is considered as the portable terminal of low performance, reduces the maximum number of active group of E-DCH.In addition, when receivable maximum TTI length is big, receives necessary memory and become big.Therefore, when receivable maximum TTI length is big, be considered as high performance portable terminal, increase the maximum number of active group of E-DCH,, be considered as the portable terminal of low performance, reduce the maximum number of active group of E-DCH when receivable maximum TTI length hour.The function of signaling also can be with existing the same, by there not being the new signaling of appending, so have the high advantage of interchangeability.

Execution mode 3

In this execution mode 3, the variation 1,2 of above-mentioned execution mode 1 is described.

As conversion example 1, suppose following situation.

That is, suppose in non-serving base stations 23 that deficiencies such as the quantity allotted of following line code or transmitted power want to save the situation of the down channel of transmission.

And the change of establishing transmission path is violent, and in serving BS 22, the frequency height that the reception mistake of E-DCH takes place is so as mobile body communication system, want to improve the request of grand diversity.

In addition, in non-serving base stations 23, interfere the limit that surplus is arranged, needn't send the Down instruction to portable terminal 21.

Under above-mentioned condition, consider following mobile body communication system, the several non-serving base stations 23 that promptly comprise among active group of the E-DCH receive the E-DCH data that send from portable terminal 21, but do not send the Down instruction.

At this moment, can reduce the hardware of the E-RGCH acceptance division 119 in the portable terminal 21.

In addition, as mobile body communication system integral body, can reduce the assignment of code of non-serving base stations 23 or transmitted power etc.

Then, as variation 2, suppose following situation.

That is, suppose following situation: in non-serving base stations 23, deficiencies such as the quantity allotted of following line code or transmitted power want to save the down channel of transmission.

And, suppose following situation: because transmission path is stable, so in serving BS 22, the frequency that the reception mistake of E-DCH takes place is low, as mobile body communication system, is not to need very much grand diversity.

But, because non-serving base stations 23 needs to consider that the portable terminal number of interference volume is more, or non-serving base stations 23 needs to consider that the transmission rate of portable terminal of interference volume is higher, so the interference margins of hypothesis non-serving base stations 23 does not have surplus, must send the Down instruction to portable terminal 21.

Under above-mentioned condition, consider that the several non-serving base stations 23 that comprise among active group of the E-DCH do not receive the E-DCH data that send from portable terminal 21, but send the mobile body communication system of Down instruction.

At this moment, can reduce the hardware of the E-HICH acceptance division 127 of portable terminal 21 in the portable terminal 21.

In addition, as mobile body communication system integral body, can obtain following effect: the assignment of code of minimizing non-serving base stations 23 or transmitted power etc., the traffic that the E-DCH reception is handled, minimizing receives data to the E-DCH of base-station control apparatus 25 transmissions from non-serving base stations 23 of non-serving base stations 23 etc. that reduces.

Industrial usability

As mentioned above, mobile body communication system of the present invention is applicable to the field that is starved of the hardware size that reduces the portable terminals such as portable phone.

Claims (13)

1. mobile body communication system possesses:

A plurality of base stations, the data that grand diversity reception is sent from portable terminal; With

Base-station control apparatus is selected non-serving base stations from above-mentioned a plurality of base stations, this non-serving base stations has the controlled function of the data sending power in the above-mentioned portable terminal of control,

This mobile body communication system is characterised in that,

Above-mentioned base-station control apparatus is set the maximum number of above-mentioned non-serving base stations according to the ability information that receives from above-mentioned portable terminal.

2. mobile body communication system possesses:

A plurality of base stations, the data that grand diversity reception is sent from portable terminal; With

Base-station control apparatus is selected non-serving base stations from above-mentioned a plurality of base stations, this non-serving base stations has the controlled function of the data sending power in the above-mentioned portable terminal of control,

This mobile body communication system is characterised in that,

Above-mentioned base-station control apparatus from a plurality of maximum numbers of preparing, is set the maximum number of above-mentioned non-serving base stations according to the ability information that receives from above-mentioned portable terminal.

3. mobile body communication system according to claim 2 is characterized in that,

From the maximum number of a plurality of non-serving base stations of preparing,, set maximum number according to the ability of portable terminal.

4. mobile body communication system according to claim 3 is characterized in that,

According to the ability of portable terminal, set the maximum number of non-serving base stations in advance, the maximum number that this portable terminal will be set in advance is notified to base-station control apparatus.

5. mobile body communication system according to claim 3 is characterized in that,

Base-station control apparatus is grasped the ability of portable terminal, according to the ability of this portable terminal, sets the maximum number of non-serving base stations.

6. mobile body communication system according to claim 5 is characterized in that,

Portable terminal will represent that the ability information of own ability is notified to base-station control apparatus, and this base-station control apparatus is grasped the ability of above-mentioned portable terminal according to this ability information.

7. base-station control apparatus possesses:

Maximum number is obtained parts, when being set with the maximum number of non-serving base stations in portable terminal, obtains the maximum number of non-serving base stations from this portable terminal, and this non-serving base stations has the controlled function of the data sending power in the above-mentioned portable terminal of control; With

The non-serving base stations alternative pack will be obtained maximum number that parts obtain as the upper limit by above-mentioned maximum number, a plurality of base stations of the data of being sent by above-mentioned portable terminal from grand diversity reception, select non-serving base stations.

8. base-station control apparatus possesses:

Ability is grasped parts, grasps the ability of portable terminal;

The maximum number set parts, when preparing the maximum number of a plurality of non-serving base stations is arranged, from the maximum number of this non-serving base stations, according to grasping the ability that parts are grasped by aforementioned capabilities, set the maximum number of non-serving base stations, this non-serving base stations has the controlled function of the data sending power in the control portable terminal; With

Non-serving base stations alternative pack, the maximum number that will be set by above-mentioned maximum number set parts be as the upper limit, a plurality of base stations of the data of being sent by above-mentioned portable terminal from grand diversity reception, selects non-serving base stations.

9. base-station control apparatus according to claim 8 is characterized in that,

Ability is grasped parts and is collected the ability information of representing own ability from portable terminal, according to this ability information, grasps the ability of portable terminal.

10. portable terminal possesses:

The maximum number memory unit when the ability of prior basis oneself is set with the maximum number of non-serving base stations, is stored the maximum number of this non-serving base stations, and this non-serving base stations has the controlled function of control data transmitted power;

Maximum number notice parts are notified to base-station control apparatus with the maximum number of the non-serving base stations stored in the above-mentioned maximum number memory unit; With

The power adjustment component, carry and the corresponding receiving circuit of maximum number that is stored in the non-serving base stations in the above-mentioned maximum number memory unit, when this receiving circuit when the selected non-serving base stations of above-mentioned base-station control apparatus receives the control signal of transmitted power, send the power of data according to this control signal adjustment.

11. portable terminal according to claim 10 is characterized in that,

Be provided with: append the update request parts,

This maximum number that appends the non-serving base stations that the update request parts store in than maximum number memory unit in the number of current non-serving base stations after a little while, send the append request of non-serving base stations to base-station control apparatus, in the number of current non-serving base stations is the maximum number of the non-serving base stations stored in above-mentioned maximum number memory unit when above, sends the update request of non-serving base stations to above-mentioned base-station control apparatus.

12. a portable terminal possesses:

The maximum number memory unit when the ability of prior basis oneself is set with the maximum number of non-serving base stations, is stored the maximum number of this non-serving base stations, and this non-serving base stations has the controlled function of control data transmitted power;

Ability notice parts are to the ability information of the own ability of base-station control apparatus notice expression; With

The power adjustment component, carry and the corresponding receiving circuit of maximum number that is stored in the non-serving base stations in the above-mentioned maximum number memory unit, when this receiving circuit when the selected non-serving base stations of above-mentioned base-station control apparatus receives the control signal of transmitted power, send the power of data according to this control signal adjustment.

13. portable terminal according to claim 12 is characterized in that,

Be provided with: append the update request parts,

This maximum number that appends the non-serving base stations that the update request parts store in than maximum number memory unit in the number of current non-serving base stations after a little while, send the append request of non-serving base stations to base-station control apparatus, in the number of current non-serving base stations is the maximum number of the non-serving base stations stored in above-mentioned maximum number memory unit when above, sends the update request of non-serving base stations to above-mentioned base-station control apparatus.

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