CN1134126C - Mobile communication system - Google Patents

Mobile communication system Download PDF

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Publication number
CN1134126C
CN1134126C CNB971817162A CN97181716A CN1134126C CN 1134126 C CN1134126 C CN 1134126C CN B971817162 A CNB971817162 A CN B971817162A CN 97181716 A CN97181716 A CN 97181716A CN 1134126 C CN1134126 C CN 1134126C
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China
Prior art keywords
travelling carriage
speed
switching centre
communication system
data
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Expired - Lifetime
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CNB971817162A
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Chinese (zh)
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CN1245603A (en
Inventor
内田吉则
之
铃木邦之
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BlackBerry Ltd
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Mitsubishi Electric Corp
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Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to CN200510089482.3A priority Critical patent/CN1722644B/en
Priority to CNB971817162A priority patent/CN1134126C/en
Publication of CN1245603A publication Critical patent/CN1245603A/en
Application granted granted Critical
Publication of CN1134126C publication Critical patent/CN1134126C/en
Priority to HK06105814.7A priority patent/HK1085859A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A mobile switching center 27 changes the transmission speed of communication data transmitted from a mobile station 16 to a database 11 or the transmission speed of communication data transmitted from the database 11 to the mobile station 16 respectively and individually according to the request from the mobile station 16, etc. or the database.

Description

Mobile communication system
Technical field
The present invention relates to set and make from the mobile communication system of travelling carriage to the transmission speed of the communication data of the base station transmission asymmetric data communication channel different with the transmission speed of the communication data that transmits to travelling carriage from the base station.
Background technology
Fig. 1 is a structure chart of representing for example to open the spy disclosed existing mobile communications system in flat 8～No. 331153 communiques.In the drawings, the 1st, movably be installed in interior travelling carriages such as automobile, the 2nd, transmitting transmission speed to base station 5 is the low speed dispensing device of the communication data of low speed, the 3rd, 5 receive the high speed receiving system that transmission speed is a communication data at a high speed from the base station, the 4th, the up link of data communication channel, the 5th, and belong to the base station that travelling carriage 1 in the wireless coverage area carries out radio communication, the 6th, receiving transmission speed from travelling carriage 1 is the low speed receiving system of the communication data of low speed, the 7th, transmit the high speed dispensing device that transmission speed is a communication data at a high speed, the 8th, the down link of data communication channel to travelling carriage 1.
Below, action is described.
For example, when travelling carriage 1 need receive the control channel of base station 5 when the communicator (not shown) that is connected with public network transmits communication data, and call out by the control channel of distributing to travelling carriage 1.
Promptly, travelling carriage 1, by control channel to base station 5 send the needed control information of radio communications (for example, be used to indicate when when base station 5 sends communication datas, sending with the transmission speed of low speed when from the base station during 5 received communication data the reception transmission speed be the information of the communication data of high speed).
Then, when when travelling carriage 1 sends control information, base station 5 will be sent to not shown mobile switching centre etc. from the control information that travelling carriage 1 sends, permitted the intention of travelling carriage 1 in this mobile switching centre after, the information notice travelling carriage 1 that base station 5 has been allowed its intention by control channel.
Thus, be set to the transmission speed of low speed to the transmission speed of the communication data of base station 5 transmission from travelling carriage 1, and will be from the base station transmission speed of 5 communication datas that transmit to travelling carriage 1 be set at high transmission speed, thereby realize the different asymmetric radio communication of transmission speed of up link 4 and down link 8.
Because existing mobile communications system constitutes by aforesaid mode, therefore can realize the different asymmetric radio communication of transmission speed of up link 4 and down link 8, but because the device of change communication data transmission speed is not set, so, in case set back data volume passing in time later on the problem that can not change to the transmission speed that adapts with this data volume has taken place to change although exist the transmission speed of communication data.
The present invention develops for solving aforesaid problem, its objective is transmission speed that a kind of communication data is provided in case mobile communication system that still can appropriate change communication data transmission speed after setting.
Disclosure of an invention
In mobile communication system of the present invention, mobile switching centre, according to request from travelling carriage or the communicator that is connected with public network etc. etc., the transmission speed of the communication data that change transmits to communicator from travelling carriage.
In this manner, have such effect, that is, after in a single day the transmission speed of communication data is set,, also still can suitably change to the transmission speed that adapts to data volume even the data volume that is sent to the communication data of communicator from travelling carriage changes.
In mobile communication system of the present invention, mobile switching centre, according to the request from travelling carriage or communicator, mobile switching centre's change is from the transmission speed of communicator to the communication data of travelling carriage transmission.
In this manner, have such effect, that is, after in a single day the transmission speed of communication data is set,, also still can suitably change to the transmission speed that adapts to data volume even the data volume that is sent to the communication data of travelling carriage from communicator changes.
In mobile communication system of the present invention, mobile switching centre, according to request, change independently respectively from travelling carriage to the communication data of communicator transmission or from the transmission speed of communicator to the communication data of travelling carriage transmission from travelling carriage or communicator.
In this manner, has such effect, promptly, after in a single day the transmission speed of communication data is set, even be sent to the communication data of communicator or change from travelling carriage, also can suitably change to the transmission speed that adapts to data volume from the data volume that communicator is sent to the communication data of travelling carriage.
In mobile communication system of the present invention,, be the speed that belongs to the high speed data transfer scope by mobile switching centre's transmission speed after changing.
In this manner, has the effect that the transmission time is shortened.
In mobile communication system of the present invention,, be the speed that belongs to the medium speed data transmission range by mobile switching centre's transmission speed after changing.
In this manner, has the effect that can realize the radio communication that adapts with data volume.
In mobile communication system of the present invention,, be the speed that belongs to the low speed data transmission range by mobile switching centre's transmission speed after changing.
In this manner, has the effect that can realize the radio communication that adapts with data volume.
Mobile communication system of the present invention in the low speed data transmission range, comprises the interruption transfer of data.
In this manner, having can be with the effect of data communication channel release in the time of transport communication data not band.
In mobile communication system of the present invention, as the transmission means of high speed data transfer, TDMA/TDD mode, TDMA/FDD mode have been adopted, Time Division-Code Division Multiple Access/TDD mode, Time Division-Code Division Multiple Access/FDD mode or CDMA/TDD mode.
In this manner, have and to adopt aforesaid way etc. to carry out the effect of high speed data transfer.
In mobile communication system of the present invention, the transmission means as the medium speed data transmission has adopted TDMA/TDD mode, TDMA/FDD mode, Time Division-Code Division Multiple Access/TDD mode, Time Division-Code Division Multiple Access/FDD mode or CDMA/TDD mode.
In this manner, has the effect that can adopt aforesaid way etc. to carry out the medium speed data transmission.
In mobile communication system of the present invention, the transmission means as the low speed data transmission has adopted TDMA/TDD mode, TDMA/FDD mode, Time Division-Code Division Multiple Access/TDD mode, Time Division-Code Division Multiple Access/FDD mode or CDMA/TDD mode.
In this manner, has the effect that can adopt aforesaid way etc. to carry out the low speed data transmission.
Mobile communication system of the present invention is provided with the transfering state processor controls in mobile switching centre, and is a plurality of when sending the travelling carriage of received communication data by the base station when existing, and is used to manage the state transitions of the transmission speed of each travelling carriage.
In this manner, have such effect, that is,, also can change the transmission speed of communication data exactly even exist a plurality of travelling carriages by base station transmission received communication data.
Mobile communication system of the present invention is provided with the priority processor controls in mobile switching centre, is used to manage the alter operation of the transmission speed of the setting operation of data communication channel of mobile switching centre and mobile switching centre.
In this manner, the effect that has the setting operation etc. of management data communication channel reliably.
In mobile communication system of the present invention, mobile switching centre, when travelling carriage carries out the position login, the accessible transmission speed of logging mobile station, the speed switching time of logining this travelling carriage simultaneously.
In this manner, has the effect that mobile switching centre can change the communication data transmission speed as required rapidly.
Mobile communication system of the present invention is provided with information-storing device in mobile switching centre, is used for the accessible transmission speed of storing mobile station, stores the speed switching time of this travelling carriage simultaneously.
In this manner, has the effect that mobile switching centre can grasp accessible transmission speed of travelling carriage etc. reliably.
In mobile communication system of the present invention, when travelling carriage and communicator begin the transmission of communication data, mobile switching centre, in the accessible transmission speed of travelling carriage, select the maximum transfer speed that the current data communication channel can be allowed, and will indicate the transfer rate information informing base station and the travelling carriage of this transmission speed.
In this manner, has the effect that can shorten the communication data transmission speed.
In mobile communication system of the present invention, after with transfer rate information informing base station and travelling carriage, when having passed through speed during switching time that is stored in the travelling carriage in the information-storing device, will instruction switch the switching timing information informing base station and the travelling carriage of transmission speed.
In this manner, having can be rapidly and change the effect of transmission speed reliably.
In mobile communication system of the present invention, after receiving the switching timing notification of information from mobile switching centre, the time slot the initial frame after receiving this notice begins to communicate with new transmission speed the transmission reception of data.
In this manner, having can be rapidly and change the effect of transmission speed reliably.
In mobile communication system of the present invention, when in the scope of translational speed at walking speed, as detect this translational speed and surpassed the walking speed scope, then will indicate the automobile driving speed information of this situation to notify mobile switching centre by the base station.
In this manner, have and to change time slot and make it be suitable for the effect of automobile driving speed.
In mobile communication system of the present invention, when in the scope of translational speed at automobile driving speed, as detect this translational speed and be reduced to below the automobile driving speed scope, then will indicate the automobile driving speed of this situation to remove information and notify mobile switching centre by the base station.
In this manner, have and to change time slot and make it be suitable for the effect of walking speed.
Mobile communication system of the present invention is provided with information-storing device in mobile switching centre, from travelling carriage automobile driving speed information during by base station notice mobile switching centre, is being used to store this automobile driving speed information.
In this manner, have the translational speed that to grasp travelling carriage reliably and remain on the interior effect of automobile driving speed scope.
Mobile communication system of the present invention is provided with information-storing device in mobile switching centre, when travelling carriage is removed information by base station notice mobile switching centre with automobile driving speed, is used to store this automobile driving speed and removes information.
In this manner, have the translational speed that to grasp travelling carriage reliably and remain on the interior effect of walking speed scope.
Mobile communication system of the present invention is provided with mode in mobile switching centre and sets processor, when in information-storing device stored automobile driving speed information, is used to change time slot so that the guard time of data communication channel is suitable for automobile driving speed.
In this manner, has the effect that the guard time of data communication channel can be remained on appropriate value.
Mobile communication system of the present invention is provided with mode in mobile switching centre and sets processor, when when information-storing device stored automobile driving speed is removed information, is used to change time slot so that the guard time of data communication channel is suitable for walking speed.
In this manner, has the effect that the guard time of data communication channel can be remained on appropriate value.
In mobile communication system of the present invention, when from communicator when travelling carriage transmits communication data, this communicator is with the data volume notice mobile switching centre of communication data.
In this manner, have such effect, that is, because mobile switching centre can grasp the data volume of communication data, so when communicator transmits a large amount of communication datas, can judge whether travelling carriage can receive a large amount of communication datas reliably.
In mobile communication system of the present invention, when from travelling carriage when communicator sends communication data, this travelling carriage is with the data volume notice mobile switching centre of communication data.
In this manner, have such effect, that is, because mobile switching centre can grasp the data volume of communication data, so when travelling carriage transmits a large amount of communication datas, can judge whether communicator can receive a large amount of communication datas reliably.
In mobile communication system of the present invention, when from communicator or travelling carriage when other communicators or other travelling carriages send communication data, send the communicator of communication data or travelling carriage data volume notice mobile switching centre with communication data.
In this manner, have such effect, that is, because mobile switching centre can grasp the data volume of communication data, so when communicator or travelling carriage transmit a large amount of communication datas, can judge whether other communicators or other travelling carriages can receive a large amount of communication datas reliably.
In mobile communication system of the present invention, state according to executable maximum transfer speed of travelling carriage and current empty data communication channel is judged the actual maximum transfer speed of transmitting, simultaneously, when beginning the transport communication data with this maximum transfer speed, judging whether can be at certain hour with the data volume of interior transmission from the communicator notice, and can not be at certain hour during with interior transmission when being judged as, the transmission of refusal communication data.
In this manner, the effect that has the reception mistake that to avoid communication data.
In mobile communication system of the present invention, state according to executable maximum transfer speed of travelling carriage and current empty data communication channel is judged the actual maximum transfer speed of transmitting, simultaneously, when beginning the transport communication data with this maximum transfer speed, judging whether can be at certain hour with the data volume of interior transmission from the travelling carriage notice, and can not be at certain hour during with interior transmission when being judged as, the transmission of refusal communication data.
In this manner, the effect that has the reception mistake that to avoid communication data.
In mobile communication system of the present invention, state according to executable maximum transfer speed of travelling carriage and current empty data communication channel is judged the actual maximum transfer speed of transmitting, simultaneously, when beginning the transport communication data with this maximum transfer speed, judge whether can be at certain hour with interior transmission from the communicator that transmits communication data or the data volume of travelling carriage notice, and can not be at certain hour during with interior transmission when being judged as, the transmission of refusal communication data.
In this manner, the effect that has the reception mistake that to avoid communication data.
In mobile communication system of the present invention, when carrying out the handover of travelling carriage, mobile switching centre is according to the Status Change travelling carriage of the empty data communication channel of handover-target base station and the transmission speed between the base station.
In this manner, has the optimized effect of the transmission speed that when carrying out the handover of travelling carriage, makes communication data.
Mobile communication system of the present invention determined handover-target base station before the handover that carries out travelling carriage, judge the state of the empty data communication channel of handover-target base station simultaneously.
In this manner, has the effect that can prevent that the wireless connections that take place along with the handover of travelling carriage from disconnecting.
In mobile communication system of the present invention, detect from current the connection the electric field strength of electric wave of all base station of base station adjacency, and this electric field strength circulated a notice of to mobile switching centre.
In this manner, has the effect that the standard of selecting best base station can be offered mobile switching centre.
In mobile communication system of the present invention, when receiving indication from mobile switching centre, travelling carriage circulates a notice of electric field strength to mobile switching centre.
In this manner, has the effect that when mobile switching centre needs electric field strength, can obtain this electric field strength.
In mobile communication system of the present invention, when receiving indication from the base station, travelling carriage circulates a notice of electric field strength to mobile switching centre.
In this manner, have and judge when mobile switching centre needs electric field strength when the base station and can make mobile switching centre obtain the effect of this electric field strength.
In mobile communication system of the present invention, will compare mutually from the electric field strength of the electric wave of each base station, and the base station decision that will launch the electric wave of electric field strength maximum is handover-target base station.
In this manner, have and the base station decision of the best can be the effect of handover-target base station.
In mobile communication system of the present invention, the selected data communication channel that can in the executable maximum transfer speed scope of travelling carriage, realize maximum transfer speed in the empty data communication channel of handover-target base station.
In this manner, has the optimized effect of the transmission speed that when carrying out the handover of travelling carriage, makes communication data.
In mobile communication system of the present invention, under the situation that transmission speed accelerates behind the handover that carries out travelling carriage, before the change transmission speed, carry out handover.
In this manner, has the effect that to carry out the handover of travelling carriage rapidly.
In mobile communication system of the present invention, under the situation of transmission speed step-down behind the handover that carries out travelling carriage, after the change transmission speed, carry out handover.
In this manner, has the effect that can prevent that the wireless connections that take place along with the handover of travelling carriage from disconnecting.
In mobile communication system of the present invention, when the transmission speed of the communication data of accelerating to transmit to communicator from travelling carriage, make transmission speed confirm the transmitted power of travelling carriage before accelerating.
In this manner, has the effect that to judge the transmission speed quickening that in fact whether can make communication data.
In mobile communication system of the present invention, when the transmission speed of the communication data of accelerating to transmit to travelling carriage from communicator, make transmission speed confirm the transmitted power of base station before accelerating.
In this manner, has the effect that to judge the transmission speed quickening that in fact whether can make communication data.
In mobile communication system of the present invention, confirm the transmitted power of travelling carriage by the received power of confirming the base station.
In this manner, has the effect that to confirm the transmitted power of travelling carriage reliably.
In mobile communication system of the present invention, confirm the transmitted power of base station by the received power of confirming travelling carriage.
In this manner, has the effect that to confirm the transmitted power of base station reliably.
In mobile communication system of the present invention, should improve the indication notice travelling carriage of transmission power level, should circulate a notice of the indication informing base station of received power simultaneously.
In this manner, has the effect that to judge the transmission speed quickening that in fact whether can make communication data.
In mobile communication system of the present invention, should improve the indication informing base station of transmission power level, should circulate a notice of the indication notice travelling carriage of received power simultaneously.
In this manner, has the effect that to judge the transmission speed quickening that in fact whether can make communication data.
In mobile communication system of the present invention, when the increase of the transmitted power of travelling carriage can not adapt to the speed change of transmission speed, the change of refusal transmission speed.
In this manner, have such effect, that is, when transmission speed is accelerated, can prevent the invalid processing procedure of still trying hard to accelerate transmission speed, simultaneously, can prevent the communication abnormality that takes place along with this invalid process.
In mobile communication system of the present invention, when the increase of the transmitted power of base station can not adapt to the speed change of transmission speed, the change of refusal transmission speed.
In this manner, have such effect, that is, when transmission speed is accelerated, can prevent the invalid processing procedure of still trying hard to accelerate transmission speed, simultaneously, can prevent the communication abnormality that takes place along with this invalid process.
In mobile communication system of the present invention, when the increase of the transmitted power of travelling carriage can adapt to the speed change of transmission speed, allow the change of transmission speed.
In this manner, has the effect that can make communication data transmission speed high speed.
In mobile communication system of the present invention, when the increase of the transmitted power of base station can adapt to the speed change of transmission speed, allow the change of transmission speed.
In this manner, has the effect that can make communication data transmission speed high speed.
In mobile communication system of the present invention, when transmission speed is doubled, should make transmitted power improve 3 decibels indication notice travelling carriage.
In this manner, has the effect that transmission speed is doubled.
In mobile communication system of the present invention, when transmission speed is doubled, should make transmitted power improve 3 decibels indication informing base station.
In this manner, has the effect that transmission speed is doubled.
The simple declaration of accompanying drawing
Fig. 1 is the structure chart of expression existing mobile communications system.
Fig. 2 is the structure chart of the mobile communication system of expression the invention process form 1.
Fig. 3 is a presentation surface to the data structure diagram of the structure of time slot of the PCS of Time Division-Code Division Multiple Access, high speed TDMA and low speed TDMA etc. and honeycomb.
Fig. 4 is the state transition diagram of mobile communication system.
Fig. 5 is the flow chart of action of the mobile communication system of explanation the invention process form 1.
Fig. 6 is the detailed structure view of mobile switching centre of representing the mobile communication system of the invention process form 2 in detail.
Fig. 7 is the state transition diagram of the control main body of explanation mobile communication system.
Fig. 8 is the transfer process figure of the mobile communication system of expression the invention process form 3.
Fig. 9 is the tabular drawing of the content of the expression mobile station information memory 35 that is used for the accessible transmission speed of storing mobile station and speed switching time.
Figure 10 is the transfer process figure of the mobile communication system of expression the invention process form 4.
Figure 11 is the transfer process figure of the mobile communication system of expression the invention process form 5.
Figure 12 is the flow chart of the affirmation process before the expression handover.
Figure 13 is the transfer process figure of the mobile communication system of expression the invention process form 6.
Figure 14 is the transfer process figure of the mobile communication system of expression the invention process form 7.
Figure 15 is the flow chart that the expression transmitted power is confirmed process.
The optimal morphology that is used to carry out an invention
Below, for the present invention will be described in more detail, be used to implement optimal morphology of the present invention with reference to description of drawings.Example 1
Fig. 2 is the structure chart of the mobile communication system of expression the invention process form 1.In the drawings, the 11st, the database (communicator) that is connected with public network 12, the 12nd, public network (utility telephone network: PSTN), 13, the 14, the 15th, belong to the switching center of PSTN12,16～22 are mounted in communicator, portable type communicator or semifixed WLL (wireless local loop) platform in the automobile etc., below, these communicators are called travelling carriage.23～26th, exchange the required control information of radio communication sent and received the communication data that comprises voice data and pictorial data etc. simultaneously by data communication channel base station mutually by control channel and travelling carriage 16 grades that belong in the wireless coverage area, 23a is the wireless coverage area of base station 23,24a is the wireless coverage area of base station 24,25a is the wireless coverage area of base station 25,26a is the wireless coverage area of base station 26,27,28, the 29th, receive control information that the required control information of data communication sends from travelling carriage 16 by reception such as base stations 23 simultaneously and be set in the mobile switching centre of the transmission speed etc. of the communication data of transmission reception between this travelling carriage 16 etc. and the database 11 according to the control information of two aspects from the database that is connected with PSTN12 11.
Below, action is described.
At first, the Subscriber Number in the mobile communication system, user ID, charging, checking etc. are and the irrelevant control information of the characteristic of communication medium.
Different therewith, the allowable transmission of user terminal (travelling carriage 16 or database 11 etc.) or speed switching time, can be very different according to the setting of each user terminal or system.
Below, in this manual, describe the processing of the transmission speed depend on the communication medium characteristic etc. in detail, the former is then no longer ad hoc mentioned.
At first, mobile switching centre 27 that base station 23 grades are controlled etc., as shown in Figure 2, carry out wired connection with PSTN12, but travelling carriage 16 grades and base station 23 etc. are adopted the modulation system of digital modulation mode to send and received control signal etc., and with frequency division multiple access time division duplex communication mode (Frequency Division Mulitiple Access/Time DivisionDuplex:FDMA/TDD mode), code division multiple access time division duplex communication mode (CodeDivision Mulitiple Access/Time Division Duplex:CDMA/TDD mode), multicarrier time-division multiple access frequency duplex communications mode (Multi-Carriers TimeDivision Mulitiple Access/Frequency Division Duplex:TDMA/FDD mode), the TDMA/TDD mode, Time Division-Code Division Multiple Access/FDD mode or Time Division-Code Division Multiple Access/TDD mode etc. is carried out wireless connections.
Here, Fig. 3 illustrates the PCS (PCS Personal Communications System) towards Time Division-Code Division Multiple Access and the structure of time slot of honeycomb, and #41-0～3rd is used for the time slot of PCS, and #47-T1/R1, T2/R2 are the time slots that is used for honeycomb.
In addition, also illustrate the time slot #44-T0/R0 that is used for the communication of TDMA medium speed data, be used for time slot #51-T0/R0, T1/R1, T2/R2, T3, the T7A of TDMA high-speed data communication and be used for the time slot #52-T7C of Time Division-Code Division Multiple Access high-speed data communication.
But,, voice data, low speed data are shown or as the example of control channel to other low speed tdma slots (mark * person).
In Fig. 3, the time slot of down link is T0, T1, T2, T3 and five time slots of T7, and the time slot of up link is R0, R1 and three time slots of R2, constitutes asymmetrical time division duplex communication mode (TDD mode).
Below, with the state transitions of the radiolink between the state transition diagram of Fig. 4 and the flowchart text travelling carriage 16 of Fig. 5 etc. and the base station 23 etc. (still, a plurality of during when existing with travelling carriage that base station radio is connected, should have quantity and be equivalent to the state transition diagram same of this travelling carriage number with Fig. 4, and, the state transitions between travelling carriage 16 and the base station 23 only is described here for ease of explanation).
At first, when travelling carriage 16 was called out, in state J1, travelling carriage 16 received the control channel that base station 23 sends, and by the time slot request wireless connections (step ST1) in the control channel of distributing to travelling carriage 16.
Then, when when travelling carriage 16 sends the wireless connections requests, mobile switching centre 27 receives the request of wireless connections by base station 23, judges simultaneously whether wireless connections normal, and between travelling carriage 16 and base station 23 set conversation channel (step ST2).
On the other hand, when call out base station 23 (calling of base station 23 is callings of carrying out simultaneously with the calling of database 11), in state J1, base station 23, the broadcast channel in the use control channel sends the telephone number (step ST3) by the travelling carriage 16 of database 11 appointments.
Then, when the travelling carriage 16 that receives its own telephone number responded base station 23 by specified control channel, mobile switching centre 27 is set conversation channel or low speed data channel (step ST4) between travelling carriage 16 and base station 23.
But when the set conversation channel, mobile switching centre 27 receives the required control information of radio communication by control channel from travelling carriage.For example, information such as receiving mobile 16 accessible transmission speeds.
Then, behind set conversation channel between travelling carriage 16 and the base station 23, the FACCH (fast access control channel) of the on-line operation person of PSTN12 by talk channel be from travelling carriage 16 receiving mobile ID, and carry out (step ST5) such as checkings to travelling carriage 16.
After the on-line operation person by PSTN12 verified travelling carriage 16, mobile switching centre 27 is setting data communication channel (step ST6, ST7) between travelling carriage 16 and base station 23, and transferred to state J2 from state J1.
Thus, the transmission that can begin communication data between travelling carriage 16 and database 11 receives, but at first begins to be used to confirm by database 11 whether travelling carriage 16 has the preparation property communication of the ability of handling communication data etc.
When carrying out the communication of above-mentioned preparation property, because the transmission quantity of communication data is little, so the transmission speed with up link (transmitting the transmission line of communication data from travelling carriage 16 to database 11) and down link (transmitting the transmission line of communication data from database 11 to travelling carriage 16) is set in the scope (below the 19.6Kbps) that low speed data transmits usually.
Though up link and down link all are set in the scope that low speed data transmits, but the transmission speed of up link and down link is not necessarily consistent, for example, sometimes the transmission speed with up link is set at 8Kbps, and the transmission speed of down link is set at 2Kbps (setting of asymmetric radio communication).
In addition, when needing to carry out the transmission of high speed data transfer or medium speed data at the very start, also transmission speed is set in the scope (more than the 200Kbps) of high speed data transfer or the scope of medium speed data transmission (more than the 19.6Kbps, below the 200Kbps) sometimes.
According to as upper type, be set in the transmission speed of carrying out the data communication channel of wireless connections between travelling carriage 16 and the base station 23, and the transmission of beginning communication data receives, but the data volume of communication data is not often fixed, As time goes on, data volume can change, so, under the transmission speed of initial setting, faults such as communication data will take place to transmit at short notice sometimes.
Therefore, in this example 1, after in a single day the transmission speed of communication data is set, if the request from the relevant transmission speed change of travelling carriage 16 or database 11 is arranged, then mobile switching centre 27 will consider the state of travelling carriage 16 accessible transmission speeds and current empty data communication channel and change the transmission speed of up link and down link respectively independently.
J3～J8, mobile switching centre 27 is shown according to from the request of travelling carriage 16 or database 11 transmission speed state after changing with up link and down link, but the what is called among J6～J8 is interrupted transfer of data, is still keeping the travelling carriage 16 and the wireless connections of base station 23 to exist the data transfer mode of the time band that does not transmit communication data though refer to.As when distinguishing the state transitions that exists to this interruption transfer of data, in this case, the charging of continued expense is only carried out when the transport communication data, so have the advantage that can make communication cost become cheap, in addition, do not transmit the time band of communication data, can also play the effect that can make base station 23 discharge data communication channel.
From as can be seen above-mentioned, according to this example 1, structurally can make mobile switching centre 27 according to changing independently respectively from the request of travelling carriage 16 or database 11 from travelling carriage 16 to the transmission speed of the communication data of database 11 transmission or from the transmission speed of database 11 to the communication data of travelling carriage 16 transmission, so can obtain such effect, promptly, after in a single day the transmission speed of communication data is set, even change to the data volume of the communication data of database 11 transmission or from the data volume of database 11 from travelling carriage 16, also still can suitably change to the transmission speed that adapts to data volume to the communication data of travelling carriage 16 transmission.
Therefore, can also obtain the effect of setting up the multi-media radio environment.Example 2
Fig. 6 is the structure chart of mobile switching centre of representing the mobile communication system of the invention process form 2 in detail, in the drawings, the 31st, the PSTN interface, the 32nd, talk line exchange portion, the 33rd, play the high-speed data storage device of the buffer effect of communication data when carrying out high speed data transfer, the 34th, the data number management processor, the 35th, accessible transmission speeds such as storing mobile station 16 are stored the mobile station information memory of speed switching time of these travelling carriage 16 grades simultaneously, in addition, mobile station information memory 35 is also stored automobile driving speed information or automobile driving speed releasing information.
In addition; the 36th, the transfering state processor controls; a plurality of when sending the travelling carriage of received communication data when existing by base station 23 grades; be used to manage the state transitions of the transmission speed of each travelling carriage; the 37th, the priority processor controls; be used to manage the setting operation of the data communication channel of mobile switching centre 27; network operator is to the alter operation of the transmission speed of the verification operation of travelling carriage 16 grades and mobile switching centre 27; the 38th, mode is set processor; when exporting the change request of transmission speed; change transmission speed; simultaneously; when in mobile station information memory 35 stored automobile driving speed information or automobile driving speed releasing information, the change time slot is so that the guard time of data communication channel is suitable for the speed of travelling carriage 16 grades.The 39th, signal processor, the 40th, base-station interface.In Fig. 6, the structure of mobile switching centre 27 is shown, mobile switching centre 28,29 also has same structure.
Below, action is described.
In above-mentioned example 1, do not specifically describe the structure of mobile switching centre's 27 grades, but mobile switching centre 27 etc., by formation shown in Figure 6, in the data speed change process of change communication data transmission speed, as shown in Figure 7, mobile switching centre and base station, as the window of reception from the change request of the transmission speed of travelling carriage 16 grades or database 11, mobile switching centre's 27 grades are being born the control of data speed change process.
In addition, particularly, in mobile switching centre's 27 grades, set processor 38 by mode and carry out reception transmission speed change processing of request, and transmission speed is set, make it consistent with the speed that the communication data transmission speed is asked.
When database 11 for example as data such as the in store a large amount of geology of the database of One Earth One Family physics Institute, the earth's crust and have the function that sends this mass data and during the function that receives mass data, can consider to send between database 11 and the travelling carriage 16 etc. and the situation of reception mass data.
But, when the transmission lot of data, transmission speed etc. is not managed if just send lot of data, then the transmittability of travelling carriage 16 grades or database 11 is not in full use, and takes place sometimes that data transmission period is spun out and the inappropriate situation that exceeds schedule time.
Therefore, in this case, because mobile switching centre can receive from the transmission speed of travelling carriage or database 11 change request and change transmission speed, so, can obtain the effect that the transmittability that can make travelling carriage or database 11 is not fully exerted.Example 3
Fig. 8 is the transfer process figure of the mobile communication system of expression the invention process form 3, and Fig. 9 to be expression be used to stores the tabular drawing of content of the mobile station information memory 35 of the accessible transmission speed of each travelling carriage and speed switching time.
Below, action is described.
At first, when travelling carriage 16 enters the wireless coverage area 23a of base station 23 (in this example 3, being that example describes with travelling carriage 16), travelling carriage 16 sends position logging request (P1) by control channel to base station 23.
Then, when position logging request from travelling carriage 16 is received in base station 23, carry out the position login of travelling carriage 16, simultaneously this position logging request is sent to mobile switching centre 27 (P1).
Then, when position logging request from base station 23 is received by mobile switching centre 27, indicate the signal of the information of the accessible transmission speed of travelling carriage (below, claim " transfer rate ") and speed switching time to be sent to travelling carriage 16 (P2) service request by base station 23.
Therefore, at travelling carriage 16 transfer rate and speed are sent to mobile switching centre 27 backs (P3) by base station 23 switching time, mobile switching centre 27, to be stored in the mobile station information memory 35 switching time from transfer rate and the speed that travelling carriage 16 is sent to, and logging mobile station 16 (with reference to Fig. 9) such as transfer rates.
Press as upper type, under the state that transfer rate of travelling carriage 16 etc. has been logged, (information that in calling, comprises the needed transmission speed in indicating call side) (P4, P5) when database 11 or travelling carriage 16 are called out, mobile switching centre 27, the needed transfer rate in selective call side the transfer rate in being stored in mobile station information memory 35, and with the information informing base station 23 and the travelling carriage 16 (P6, P7) of this transfer rate.
In addition, mobile switching centre 27, behind information informing base station 23 and travelling carriage 16 with this transfer rate, be that starting point was counted the time constantly also with sending of this notice, and arrive the speed that is stored in the mobile station information memory 35 during switching time, with switching timing information informing base station 23 and travelling carriage 16 (P9, P10) when this time.Here, show 27 pairs of time countings of mobile switching centre and notify the situation of switching timing information, but also can count the time according to the indication of mobile switching centre 27 and with switching timing information notice travelling carriage 16 by base station 23.
Then, after mobile switching centre's 27 notice switching timing information, base station 23 and travelling carriage 16, the transmission that begins communication data with the transfer rate information transmission speed corresponding with previous notice receives (P11, P12).
According to as upper type, the transmission that can begin communication data receives, but when the change request of having sent transmission speed by database 11 or travelling carriage 16 in the communication at communication data (P13, P14), mobile switching centre 27, select the transfer rate in being stored in mobile station information memory 35 to ask corresponding transfer rate with this change, and with the information informing base station 23 and the travelling carriage 16 (P15, P16) of this transfer rate.
In addition, mobile switching centre 27, behind information informing base station 23 and travelling carriage 16 with this transfer rate, be that starting point was counted the time constantly also with sending of this notice, and arrive the speed that is stored in the mobile station information memory 35 during switching time, with switching timing information informing base station 23 and travelling carriage 16 (P18, P19) when this time.
Then, after mobile switching centre's 27 notice switching timing information, base station 23 and travelling carriage 16, the transmission that the time slot the initial frame after receiving this notice restarts communication data with new transmission speed receives (P20,21).
According to as upper type; it is the transmission speed of variable communication data; but when along with the change of transmission speed also when travelling carriage 16 sends the request of guard time of change TDMA, mobile switching centre 27, the information informing base station 23 and the travelling carriage 16 (P23, P24) of will indication new guard time.
In addition; mobile switching centre 27; behind the information informing base station 23 that will indicate new guard time and travelling carriage 16; be that starting point was counted the time constantly also with sending of this notice; and when this time arrives the time of travelling carriage 16 appointments, with switching timing information informing base station 23 and travelling carriage 16 (P26, P27).
After mobile switching centre's 27 notice switching timing information, base station 23 and travelling carriage 16, the transmission that restarts communication data with new guard time receives (P28,29).
From as can be seen above-mentioned; according to this example 3; when travelling carriage 16 carries out location storage; structurally make the transfer rate of mobile switching centre's 27 storing mobile stations 16; store the transmission speed switching time of this travelling carriage 16 simultaneously; so, can obtain the effect that makes mobile switching centre 27 can change communication data transmission speed or guard time as required rapidly.
In addition; in above-mentioned example 3; also show the situation of the guard time of asking to change TDMA along with the change of transmission speed; specifically; a kind of situation is; when translational speed in the walking speed scope (for example; speed per hour is below 4km) time; as detect this translational speed and surpassed the walking speed scope; then will indicate the automobile driving speed information of this situation to notify mobile switching centre by the base station; thereby request change guard time, and another kind of situation is, in the scope of translational speed at automobile driving speed (for example; speed per hour is more than 4km) time; as detect this translational speed and be reduced to below the automobile driving speed scope, then will indicate the automobile driving speed of this situation to remove information and notify mobile switching centre by the base station, thus request change guard time.
Then; automobile driving speed information or automobile driving speed are removed information stores in the mobile station information memory 35 of mobile switching centre 27; and when the time in these mobile station information memory 35 stored automobile driving speed information or automobile driving speed releasing information; mode is set processor 38, and the change time slot is so that the guard time of data communication channel is suitable for walking speed or automobile driving speed.Example 4
Figure 10 is the transfer process figure of the mobile communication system of expression the invention process form 4.
Below, action is described.
At first, the same with above-mentioned example 1, by sending data transfer request by travelling carriage 16, setting data communication channel between travelling carriage 16 and base station 23, and the transmission of beginning communication data receives (in this example 4, being that example describes with travelling carriage 16).
But, in this example 4, when travelling carriage 16 requested databases 11 send data (P31), database 11 asks mobile switching centre 27 that the information (P32) of travelling carriage 16 executable maximum transfer speed is provided the data volume notice mobile switching centre 27 of communication data simultaneously.
Then, because but the maximum transmission speed is by the state decision of the transmission performance of travelling carriage 16 and current empty data communication channel, so, mobile switching centre 27, with reference to the transfer rate that is stored in the travelling carriage 16 in the mobile station information memory 35, confirm the state of current empty data communication channel simultaneously, thus the maximum transfer speed that in fact decision can be transmitted.
Then, when having begun the transmission of communication data with the maximum transfer speed that in fact can transmit, mobile switching centre 27, judging whether can be at certain hour with the data volume of interior transmission by database 11 notices, and can not be during with interior transmission at certain hour when judging, the transmission of refusal communication data, and with this advisory travelling carriage 16 and database 11.
On the other hand, can during with interior transmission, will indicate information notification database 11, base station 23 and the travelling carriage 16 (P33, P34, P35) of this maximum transfer speed at certain hour when judging.
Then, when ack signal notice mobile switching centre 27 that will confirm to change to maximum transfer speed from travelling carriage 16 and database 11 (P36, P37), the same with above-mentioned example 3, mobile switching centre 27 carries out the processing (P38) of switching the communication data transmission speeds.
After the communication data transmission speed was switched in mobile switching centre 27, database 11 was sent to travelling carriage 16 (P39) with this transmission speed with communication data.
Secondly, when travelling carriage 16 when database 11 transmits lot of data, the data sending request that travelling carriage 16 will comprise the data volume of communication data is sent to mobile switching centre 27 and database 11 (P40, P41).
Then, mobile switching centre 27 with reference to the transfer rate that is stored in the travelling carriage 16 in the mobile station information memory 35, confirms the state of current empty data communication channel simultaneously, thus the maximum transfer speed that in fact decision can be transmitted.
Then, when having begun the transmission of communication data with the maximum transfer speed that in fact can transmit, mobile switching centre 27, judging whether can be at certain hour with the data volume of interior transmission by travelling carriage 16 notices, and can not be during with interior transmission at certain hour when judging, the transmission of refusal communication data, and with this advisory travelling carriage 16 and database 11.
On the other hand, can during with interior transmission, will indicate information notification database 11, base station 23 and the travelling carriage 16 (P42, P43, P44) of this maximum transfer speed at certain hour when judging.
When ack signal notice mobile switching centre 27 that will confirm to change to maximum transfer speed from database 11 and travelling carriage 16 (P45, P46), the same with above-mentioned example 3, mobile switching centre 27 carries out the processing (P47) of switching the communication data transmission speeds.
After the communication data transmission speed was switched in mobile switching centre 27, travelling carriage 16 was sent to database 11 (P48) with this transmission speed with communication data.
From as can be seen above-mentioned, according to this example 4, when from database 11 grades when travelling carriage 16 grades send communication data, database 11 grades need the data volume notice mobile switching centre 27 with communication data, so, mobile switching centre 27 can grasp the data volume of communication data, consequently, has when a large amount of communication data of transmission such as database 11 and can judge whether travelling carriage 16 grades can receive the effect of mass communication data reliably.
In addition, when having begun the transmission of communication data with maximum transfer speed, can judge whether can be at certain hour with the data volume of interior transmission by database 11 notices, and can not be during with interior transmission at certain hour when judging, the transmission of refusal communication data is so also have the effect of the reception mistake that can avoid communication data.
In this example 4, show from database 11 and reach the situation that transmits communication datas from travelling carriage 16 to database 11 to the situation that travelling carriage 16 transmits communication data, but when from database 11 when other databases transmit communication datas or from travelling carriage 16 when other travelling carriages transmit communication datas, also can be suitable for, and can obtain same effect.Example 5
Figure 11 is the transfer process figure of the mobile communication system of expression the invention process form 5, and Figure 12 is the flow chart of the affirmation process before the expression handover.
Below, action is described.
In this example 5, for example, the processing when carrying out handover owing to the travelling carriage 16 wireless coverage area 23a that 24 overlay area 24a moves to base station 23 from the base station is described.
At first, when when hand-off request is sent in travelling carriage 16 or base station 24 (step ST11), mobile switching centre 27,16 pairs of travelling carriages of indication from current the connection the electric field strength of electric wave of all base stations 23,25 emissions of base station 24 adjacency detect, and to mobile switching centre's 27 circular these electric field strength (step ST12).
Then, mobile switching centre 27, when the electric field strength that receives from travelling carriage 16 by the electric wave of base station 23,25 emission of adjacency, this electric field strength is compared mutually, and the base station decision that will launch the electric wave of electric field strength maximum is handover-target base station (step ST13).But, for ease of explanation, below being that handover-target base station is that example describes with base station 23 decision.
After the decision handover-target base station, the mode of mobile switching centre 27 is set processor 38, with reference to the memory contents of mobile station information memory 35, and from as the data communication channel (step ST14) of selecting in the scope of the executable maximum transfer speed of travelling carriage 16, to realize maximum transfer speed the empty data communication channel of the base station 23 of handover-target base station.
Then, transmission speed before switching and the transmission speed after the switching are compared (step ST15), when the transmission speed after switching is fast, for promptly carrying out the handover of travelling carriage 16, as shown in figure 11, before transmission speed is switched, carry out the handover (P54) of travelling carriage 16.And for the fast situation of transmission speed before switching, will in example 6, describe.
According to after carrying out the handover of travelling carriage 16 as upper type, the mode of mobile switching centre 27 is set processor 38, once more empty data communication channel is confirmed, and by with quadrat method selected data communication channel, simultaneously with the information informing base station 23 and the travelling carriage 16 (P55, P56) of maximum transfer speed.
In addition, mobile switching centre 27, behind information informing base station 23 and travelling carriage 16 with this maximum transfer speed, be that starting point was counted the time constantly also with sending of this notice, and arrive the speed that is stored in the mobile station information memory 35 during switching time, with switching timing information informing base station 23 and travelling carriage 16 (P58, P59) when this time.
Then, after mobile switching centre 27 notice switching timing information, base station 23 and travelling carriage 16, the transmission that begins communication data with the information transmission speed corresponding with the maximum transfer speed of previous notice receives (P60, P61).
From as can be seen above-mentioned, according to this example 5, owing to from the empty data communication channel of handover-target base station, select in the scope of travelling carriage 16 executable maximum transfer speed, to realize the data communication channel of maximum transfer speed, so when carrying out the handover of travelling carriage 16, can obtain the optimized effect of the transmission speed that makes communication data.
In addition, under the situation that transmission speed accelerates behind the handover that carries out travelling carriage, before the change transmission speed, carry out handover, so, the effect that can carry out the handover of travelling carriage 16 rapidly can be obtained.Example 6
In above-mentioned example 5, show the situation that transmission speed accelerates after carrying out handover, but as shown in figure 13, after carrying out handover, under the situation of transmission speed step-down, can after the change transmission speed, carry out handover.
Therefore, can obtain the effect that can prevent that the wireless connections that take place along with the handover of travelling carriage 16 from disconnecting.Example 7
Figure 14 is the transfer process figure of the mobile communication system of expression the invention process form 7, and Figure 15 is the flow chart that the expression transmitted power is confirmed process.
Below, action is described.
In above-mentioned example 5, show the situation that after carrying out handover, changes transmission speed immediately, but, for example, for transmission speed is doubled, the transmitted power of transmitter side device must be doubled (representing with decibel value) for increasing by 3 decibels, so as shown in figure 14, can be after carrying out handover acknowledgment transmit power.
For example, when the transmission that communicates data between travelling carriage 16 and base station 23 receives (step ST21), whether mobile switching centre 27, judging has the empty data communication channel (step ST22) higher than current transmission speed in current sub-district of communicating by letter.
When not having vacant channels, this process is finished, but when vacant channels (step ST23), mobile switching centre 27, by reference mobile station information memory 35 grades judge travelling carriage 16 and database 11 whether can execution speed than current high communicating by letter (step ST24).
Then, mobile switching centre 27 is when judgement might be carried out high-speed communication, if travelling carriage 16 is recipients, then the transmitted power of base station 23 is confirmed, and judged whether transmitted power has enough and to spare (step ST24) by the received power of confirming travelling carriage 16.
On the other hand, if base station 23 is recipients, then the transmitted power of travelling carriage 16 is confirmed, and judged whether transmitted power has enough and to spare (step ST24) by the received power of confirming base station 23.
When judging that transmitted power has enough and to spare (step ST27), mobile switching centre 27, carry out the switching (step ST28) of transmission speed immediately, when judging that transmitted power does not have enough and to spare (step ST27), should improve the travelling carriage 16 (or base station 23) of the indication notice transmit leg of transmission power level, recipient's base station 23 (or travelling carriage 16) is notified in the indication that should circulate a notice of received power simultaneously.
Thus, judge after received power increases whether to guarantee that the enough and to spare of transmitted power can adapt to the change of transmission speed, and only when can guarantee enough and to spare, carry out the switching of transmission speed, and in the time can not guaranteeing enough and to spare, with the switching termination of transmission speed.
From as can be seen above-mentioned, according to this example 7, be enough to adapt in the increase of transmitted power under the situation of speed change of transmission speed, allow to carry out the change of transmission speed, but when the increase of transmitted power can not adapt to the speed change of transmission speed, the invalid processing procedure of still trying hard to accelerate transmission speed can be prevented, simultaneously, the communication abnormality that takes place along with this invalid process can be prevented.
Applicability on the industry
As mentioned above, GSM of the present invention is when setting makes from travelling carriage to database The biography of the transmission speed of the communication data that transmits and the communication data that transmits from database to travelling carriage During the different asymmetrical data communication channel of defeated speed, be applicable to and set up data volume in time The multimedia radio communication that passing changes.

Claims (50)

1. mobile communication system has: the base station exchanges the required control information of radio communication mutually by control channel and the travelling carriage that belongs in the wireless coverage area; And mobile switching centre, receive the required control information of data communication from the communicator that is connected with public network, receive the control information that sends from above-mentioned travelling carriage by above-mentioned base station simultaneously, and be set in the transmission speed that sends the communication data that receives between this travelling carriage and the communicator according to the control information of two aspects; This mobile communication system is characterised in that: above-mentioned mobile switching centre, and according to the request from above-mentioned travelling carriage or communicator, change is from the transmission speed of this travelling carriage to the communication data of communicator transmission;
Each travelling carriage was specified until the transmission speed change time to the elapsed time of changing transmission speed;
Behind transmission speed change effluxion, carry out the change of transmission speed to each travelling carriage appointment.
2. mobile communication system has: the base station exchanges the required control information of radio communication mutually by control channel and the travelling carriage that belongs in the wireless coverage area; And mobile switching centre, receive the required control information of data communication from the communicator that is connected with public network, receive the control information that sends from above-mentioned travelling carriage by above-mentioned base station simultaneously, and be set in the transmission speed that sends the communication data that receives between this travelling carriage and the communicator according to the control information of two aspects; This mobile communication system is characterised in that: above-mentioned mobile switching centre, and according to the request from above-mentioned travelling carriage or communicator, change is from the transmission speed of this communicator to the communication data of travelling carriage transmission;
Each travelling carriage was specified until the transmission speed change time to the elapsed time of changing transmission speed;
Behind transmission speed change effluxion, carry out the change of transmission speed to each travelling carriage appointment.
3. mobile communication system has: the base station exchanges the required control information of radio communication mutually by control channel and the travelling carriage that belongs in the wireless coverage area; And mobile switching centre, receive the required control information of data communication from the communicator that is connected with public network, receive the control information that sends from above-mentioned travelling carriage by above-mentioned base station simultaneously, and be set in the transmission speed that sends the communication data that receives between this travelling carriage and the communicator according to the control information of two aspects; This mobile communication system is characterised in that: above-mentioned mobile switching centre, according to request, change independently respectively from this travelling carriage to the communication data of communicator transmission or from the transmission speed of this communicator to the communication data of travelling carriage transmission from above-mentioned travelling carriage or communicator;
Each travelling carriage was specified until the transmission speed change time to the elapsed time of changing transmission speed;
Behind transmission speed change effluxion, carry out the change of transmission speed to each travelling carriage appointment.
4. according to any one the described mobile communication system in the claim 1～3, it is characterized in that:, be the speed that belongs to the high speed data transfer scope by mobile switching centre's transmission speed after changing.
5. according to any one the described mobile communication system in the claim 1～3, it is characterized in that:, be the speed that belongs to the medium speed data transmission range by mobile switching centre's transmission speed after changing.
6. according to any one the described mobile communication system in the claim 1～3, it is characterized in that:, be the speed that belongs to the low speed data transmission range by mobile switching centre's transmission speed after changing.
7. mobile communication system according to claim 6 is characterized in that: in the low speed data transmission range, comprise the interruption transfer of data.
8. mobile communication system according to claim 4 is characterized in that: the transmission means of high speed data transfer is TDMA/TDD mode, TDMA/FDD mode, Time Division-Code Division Multiple Access/TDD mode, Time Division-Code Division Multiple Access/FDD mode or CDMA/TDD mode.
9. mobile communication system according to claim 5 is characterized in that: the transmission means of medium speed data transmission is TDMA/TDD mode, TDMA/FDD mode, Time Division-Code Division Multiple Access/TDD mode, Time Division-Code Division Multiple Access/FDD mode or CDMA/TDD mode.
10. mobile communication system according to claim 6 is characterized in that: the transmission means of low speed data transmission is TDMA/TDD mode, TDMA/FDD mode, Time Division-Code Division Multiple Access/TDD mode, Time Division-Code Division Multiple Access/FDD mode or CDMA/TDD mode.
11. according to any one the described mobile communication system in the claim 1～3, it is characterized in that: be provided with the transfering state processor controls in mobile switching centre, a plurality of when sending the travelling carriage of received communication data when existing by the base station, be used to manage the state transitions of the transmission speed of each travelling carriage.
12. according to any one the described mobile communication system in the claim 1～3, it is characterized in that: be provided with the priority processor controls in mobile switching centre, be used to manage the alter operation of the transmission speed of the setting operation of data communication channel of mobile switching centre and mobile switching centre.
13. a mobile communication system has: the base station exchanges the required control information of radio communication mutually by control channel and the travelling carriage that belongs in the wireless coverage area; And mobile switching centre, receive the required control information of data communication from the communicator that is connected with public network, receive the control information that sends from above-mentioned travelling carriage by above-mentioned base station simultaneously, and be set in the transmission speed that sends the communication data that receives between this travelling carriage and the communicator according to the control information of two aspects; This mobile communication system is characterised in that: each travelling carriage was specified until the transmission speed change time to the elapsed time of changing transmission speed; Above-mentioned mobile switching centre when above-mentioned travelling carriage carries out the position login, stores the information of the accessible transmission speed of this travelling carriage, the transmission speed switching time of storing this travelling carriage simultaneously.
14. mobile communication system according to claim 13 is characterized in that: be provided with information-storing device in mobile switching centre, be used for the accessible transmission speed of storing mobile station, store the transmission speed switching time of this travelling carriage simultaneously.
15. mobile communication system according to claim 14, it is characterized in that: when travelling carriage and communicator begin the transmission of communication data, mobile switching centre, in the accessible transmission speed of travelling carriage, select the maximum transfer speed that the current data communication channel can be allowed, and will indicate the transfer rate information informing base station and the travelling carriage of this transmission speed.
16. mobile communication system according to claim 15, it is characterized in that: mobile switching centre, after with transfer rate information informing base station and travelling carriage, when having passed through transmission speed during switching time that is stored in the travelling carriage in the information-storing device, will instruction switch the switching timing information informing base station and the travelling carriage of transmission speed.
17. mobile communication system according to claim 16, it is characterized in that: base station and travelling carriage, after receiving the switching timing notification of information from mobile switching centre, the time slot the initial frame after receiving this notice begins to begin with new transmission speed the transmission reception of communication data.
18. mobile communication system according to claim 13, it is characterized in that: travelling carriage, when in the scope of translational speed at walking speed, as detect this translational speed and surpassed the walking speed scope, then will indicate the automobile driving speed information of this situation to notify mobile switching centre by the base station.
19. mobile communication system according to claim 13, it is characterized in that: travelling carriage, when in the scope of translational speed at automobile driving speed, as detect this translational speed and be reduced to below the automobile driving speed scope, then will indicate the automobile driving speed of this situation to remove information and notify mobile switching centre by the base station.
20. mobile communication system according to claim 18 is characterized in that: be provided with information-storing device in mobile switching centre,, be used to store this automobile driving speed information when travelling carriage is notified automobile driving speed information by the base station.
21. mobile communication system according to claim 19 is characterized in that: be provided with information-storing device in mobile switching centre,, be used to store this automobile driving speed and remove information when travelling carriage is removed automobile driving speed information and notified by the base station.
22. mobile communication system according to claim 20; it is characterized in that: be provided with mode in mobile switching centre and set processor; when in information-storing device stored automobile driving speed information, be used to change time slot so that the guard time of data communication channel is suitable for automobile driving speed.
23. mobile communication system according to claim 21; it is characterized in that: be provided with mode in mobile switching centre and set processor; when when information-storing device stored automobile driving speed is removed information, be used to change time slot so that the guard time of data communication channel is suitable for walking speed.
24. a mobile communication system has: the base station exchanges the required control information of radio communication mutually by control channel and the travelling carriage that belongs in the wireless coverage area; And mobile switching centre, receive the required control information of data communication from the communicator that is connected with public network, receive the control information that sends from above-mentioned travelling carriage by above-mentioned base station simultaneously, and be set in the transmission speed that sends the communication data that receives between this travelling carriage and the communicator according to the control information of two aspects; This mobile communication system is characterised in that: when from above-mentioned communicator when travelling carriage transmits communication data, this communicator is with the data volume notice mobile switching centre of communication data.
25. a mobile communication system has: the base station exchanges the required control information of radio communication mutually by control channel and the travelling carriage that belongs in the wireless coverage area; And mobile switching centre, receive the required control information of data communication from the communicator that is connected with public network, receive the control information that sends from above-mentioned travelling carriage by above-mentioned base station simultaneously, and be set in the transmission speed that sends the communication data that receives between this travelling carriage and the communicator according to the control information of two aspects; This mobile communication system is characterised in that: when from above-mentioned travelling carriage when communicator sends communication data, this travelling carriage is with the data volume notice mobile switching centre of communication data.
26. a mobile communication system has: the base station exchanges the required control information of radio communication mutually by control channel and the travelling carriage that belongs in the wireless coverage area; And mobile switching centre, receive the required control information of data communication from the communicator that is connected with public network, receive the control information that sends from above-mentioned travelling carriage by above-mentioned base station simultaneously, and be set in the transmission speed that sends the communication data that receives between this travelling carriage and the communicator according to the control information of two aspects; This mobile communication system is characterised in that: when from above-mentioned communicator or travelling carriage when other communicators or other travelling carriages send communication data, send the communicator of communication data or travelling carriage data volume notice mobile switching centre with communication data.
27. mobile communication system according to claim 24, it is characterized in that: mobile switching centre, state according to executable maximum transfer speed of travelling carriage and current empty data communication channel is judged the actual maximum transfer speed of transmitting, simultaneously, when beginning the transport communication data with this maximum transfer speed, judging whether can be at certain hour with the data volume of interior transmission from the communicator notice, and can not be at certain hour during with interior transmission when being judged as, the transmission of refusal communication data.
28. mobile communication system according to claim 25, it is characterized in that: mobile switching centre, state according to executable maximum transfer speed of travelling carriage and current empty data communication channel is judged the actual maximum transfer speed of transmitting, simultaneously, when beginning the transport communication data with this maximum transfer speed, judging whether can be at certain hour with the data volume of interior transmission from travelling carriage notice, and can not during with interior transmission, refuse the transmission of communication data at certain hour when being judged as.
29. mobile communication system according to claim 26, it is characterized in that: mobile switching centre, state according to executable maximum transfer speed of travelling carriage and current empty data communication channel is judged the actual maximum transfer speed of transmitting, simultaneously, when beginning the transport communication data with this maximum transfer speed, judge whether can be at certain hour with interior transmission from the communicator that transmits communication data or the data volume of travelling carriage notice, and can not be at certain hour during with interior transmission when being judged as, the transmission of refusal communication data.
30. a mobile communication system has: the base station exchanges the required control information of radio communication mutually by control channel and the travelling carriage that belongs in the wireless coverage area; And mobile switching centre, receive the required control information of data communication from the communicator that is connected with public network, receive the control information that sends from above-mentioned travelling carriage by above-mentioned base station simultaneously, and be set in the transmission speed that sends the communication data that receives between this travelling carriage and the communicator according to the control information of two aspects; This mobile communication system is characterised in that: when carrying out the handover of above-mentioned travelling carriage, above-mentioned mobile switching centre is according to this travelling carriage of Status Change of the empty data communication channel of handover-target base station and the transmission speed between the base station; And
Each travelling carriage was specified until the transmission speed change time to the elapsed time of changing transmission speed;
Behind transmission speed change effluxion, carry out the change of transmission speed to each travelling carriage appointment.
31. mobile communication system according to claim 30 is characterized in that: mobile switching centre, before the handover that carries out travelling carriage, determine handover-target base station, judge the state of the empty data communication channel of handover-target base station simultaneously.
32. mobile communication system according to claim 31 is characterized in that: travelling carriage, detect from current the connection the electric field strength of electric wave of all base station of base station adjacency, and this electric field strength circulated a notice of to mobile switching centre.
33. mobile communication system according to claim 32 is characterized in that: travelling carriage, when receiving indication from mobile switching centre, electric field strength is circulated a notice of to mobile switching centre.
34. mobile communication system according to claim 32 is characterized in that: travelling carriage, when receiving indication from the base station, electric field strength is circulated a notice of to mobile switching centre.
35. mobile communication system according to claim 32 is characterized in that: mobile switching centre will compare mutually from the electric field strength of the electric wave of each base station, and the base station decision that will launch the electric wave of electric field strength maximum is handover-target base station.
36. mobile communication system according to claim 31, it is characterized in that: mobile switching centre, the selected data communication channel that can in the executable maximum transfer speed scope of travelling carriage, realize maximum transfer speed in the empty data communication channel of handover-target base station.
37. mobile communication system according to claim 36 is characterized in that: mobile switching centre, under the situation that transmission speed accelerates behind the handover that carries out travelling carriage, carried out handover before the change transmission speed.
38. mobile communication system according to claim 36 is characterized in that: mobile switching centre, under the situation of transmission speed step-down behind the handover that carries out travelling carriage, carry out handover after the change transmission speed.
39. according to claim 1 or 3 described mobile communication system, it is characterized in that: mobile switching centre when the transmission speed of the communication data of accelerating to transmit to communicator from travelling carriage, makes transmission speed confirm the transmitted power of travelling carriage before accelerating.
40. according to claim 2 or 3 described mobile communication system, it is characterized in that: mobile switching centre when the transmission speed of the communication data of accelerating to transmit to travelling carriage from communicator, makes transmission speed confirm the transmitted power of base station before accelerating.
41., it is characterized in that according to the described mobile communication system of claim 39: mobile switching centre, confirm the transmitted power of travelling carriage by the received power of confirming the base station.
42., it is characterized in that according to the described mobile communication system of claim 40: mobile switching centre, confirm the transmitted power of base station by the received power of confirming travelling carriage.
43., it is characterized in that according to the described mobile communication system of claim 39: mobile switching centre, should improve the indication of transmission power level and notify travelling carriage, should circulate a notice of the indication informing base station of received power simultaneously.
44., it is characterized in that according to the described mobile communication system of claim 40: mobile switching centre, should improve the indication informing base station of transmission power level, should circulate a notice of the indication notice travelling carriage of received power simultaneously.
45., it is characterized in that according to the described mobile communication system of claim 43: mobile switching centre, when the increase of the transmitted power of travelling carriage can not adapt to the speed change of transmission speed, the change of refusal transmission speed.
46., it is characterized in that according to the described mobile communication system of claim 44: mobile switching centre, when the increase of the transmitted power of base station can not adapt to the speed change of transmission speed, the change of refusal transmission speed.
47. according to the described mobile communication system of claim 43, it is characterized in that: mobile switching centre when the increase of the transmitted power of travelling carriage can adapt to the speed change of transmission speed, allows the change of transmission speed.
48. according to the described mobile communication system of claim 44, it is characterized in that: mobile switching centre when the increase of the transmitted power of base station can adapt to the speed change of transmission speed, allows the change of transmission speed.
49. according to the described mobile communication system of claim 43, it is characterized in that: mobile switching centre when transmission speed is doubled, should make transmitted power improve 3 decibels indication notice travelling carriage.
50. according to the described mobile communication system of claim 44, it is characterized in that: mobile switching centre when transmission speed is doubled, should make transmitted power improve 3 decibels indication informing base station.
CNB971817162A 1997-12-10 1997-12-10 Mobile communication system Expired - Lifetime CN1134126C (en)

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CN200510089482.3A CN1722644B (en) 1997-12-10 1997-12-10 Communication control method
CNB971817162A CN1134126C (en) 1997-12-10 1997-12-10 Mobile communication system
HK06105814.7A HK1085859A1 (en) 1997-12-10 2006-05-19 A communication control method

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US5619503A (en) * 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
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