CN1700628A - Data link transmission control method, mobile communication system and base station - Google Patents

Abstract

A data link transmission control method according to the present invention is a data link transmission control method of performing data link transmission control comprising automatic repeat request control for transmission/reception of a packet between a mobile station and a plurality of base stations, wherein when during connection with a first base station, the mobile station sends a request for connection with a second base station to the first base station, the first base station transfers data link transmission control information to the second base station. Furthermore, a data link transmission control method of performing data link transmission control comprising automatic repeat request control for transmission/reception of a packet between a mobile station and a plurality of base stations, wherein a first base station stores and makes a-copy of packet in which identification information specifying the packet has been added to packet addressed to the mobile station, wherein the first base station delivers the packet copy to a second base station, wherein the second base station stores the delivered packet copy, and wherein one or more base stations comprising the first base station transmit to the mobile station the packet accompanied by the identification information, or the delivered packet copy.

Description

Data link transmission control method, mobile communication system and base station

The application is that application number is the dividing an application for the patent application of " data link transmission control method, mobile communication system, data chain transmitting controller, base station, travelling carriage, travelling carriage control program and machine readable recording medium " that 02118674.x, the applying date be on April 26th, 2002, denomination of invention.

Technical field

The present invention relates to data link transmission control method, mobile communication system and base station, in more detail, the data link that sends requirement control automatically again that comprises that the present invention relates to be used to divide into groups to receive and dispatch between travelling carriage and base station is transmitted the data link transmission control method of control, pass through the mobile communication system that information transmit-receive is carried out in grouping by what travelling carriage and a plurality of base station constituted, between travelling carriage, carry out the data chain transmitting controller that loads in the base station of information transmit-receive by grouping, be used for the travelling carriage control program carried out with the computer of travelling carriage and travelling carriage loading in the base station that constitutes mobile communication system and relevant machine readable medium.

Background technology

Fig. 1 and 2 is used for illustrating that existing mobile communication system comprises the structure chart of the data link transmission control method that sends requirement control automatically again and the example of program.

Data link transmission control part 3 will at first be imported from the grouping of network 1 input by the arrow T1 among Fig. 2 in base station 2, carry out the control of data link transmission when carrying out sending requirement control more automatically.This data link transmission control part 3 is given the packet number of this grouping that can discern input, again to this grouping additional can check transmit in generation error code CRC (cyclic redundancy check) but etc. the parity of error correction, store this grouping then, export transceiver 5 to through transducer 4 simultaneously.Transceiver 5 in modulated transmit signal after antenna for base station 6 sends to travelling carriage 31 (the arrow T2 of Fig. 2).

After travelling carriage 31 receives signal from mobile portable antennas 32 by transceiver 33, data link transmission control part 34 is exported in the grouping that receives.Execution comprises the data link transmission control that sends requirement control automatically again.This grouping of 34 pairs of inputs of data link transmission control part is carried out error coded check with additional parity.The result of check transmits control part by data link NACK (Negative ACKnowledgement) letter is sent to base station 2, and the data link that requires informing base station that sends again that will divide into groups is transmitted control part 3 (arrow T3 among Fig. 2) when this grouping has error code.Data link transmission control part 3 sends and requires the grouping (arrow 4 among Fig. 2) of transmission again.

Divide into groups when errorless at this, data link transmission control part 34 should divide into groups from the output of data I/O end, by ACK (affirmation) letter is sent to base station 2, the data link of the arrival affirmation informing base station of this grouping was transmitted control part 3 (arrow T5 among Fig. 2).These data link transmission control part 3 deletions are for sending the grouping of this packet number of storing again then.

But when because travelling carriage 31 moves that the communication quality that makes the base station 2 of also communicate by letter with travelling carriage 31 so far worsens with the communication quality of other base stations 12 when good, travelling carriage 31 can be through the base station 12 pairs of base stations (arrow T6, the T7 of Fig. 2) that base stations 2 require change to communicate by letter.According to this requirement, the data link of base station 2 transmission control part 3 can be altered to the network 1 from transceiver 5 by the connecting object with converter 4, sends change subject base-station 12 (arrow T8, T9 among Fig. 2) to and will carry out sending the grouping that requires control automatically again.Data link with respect to base station 12 transmits control part 13 then, does not carry out to send automatically to require control again, and carries out its former state ground warp converter 14 is exported to the control (arrow 10 among Fig. 2) of transceiver 15.

According to the method, since can with can communication object irrelevant will the transmission more automatically of the change of base station require control former state ground to carry out (the arrow T8 of Fig. 2～T16) by 1 data link transmission control part 3, when becoming the base station change of communication object, can not produce resetting of packet number yet and transmit grouping.

Even be altered to base station 2 away from base station 22 time, by said method, also can send again automatically and require control to transmit grouping simultaneously.

In the transfer of existing mobile communication system, as described in Japanese kokai publication hei 10-136426 communique, by carrying out the switching of base station by the virtual region control device when shifting, the controlled quentity controlled variable that shifts in the time of can reducing the small wireless compartmentalization is to shorten the wink break time of telecommunication circuit.

But the data link transmission control method in this existing mobile communication system, be irrespectively to make to comprise with moving of travelling carriage to send the data link transmission that requires control automatically again, gather by the data link transmission control part 3 of the base station 2 of a series of transmitted in packets of beginning and to carry out, thereby moving along with travelling carriage, the transmission that is grouped between the base station after the data link transmission control increases, so can increase the transmission packets time delay.Because the increasing of propagation delay time will reduce throughput.

Like this, data link transmission control method in the existing mobile communication system, even travelling carriage moves in the sub-district of another base station, though by a base station comprise automatically send the data link transmission control that requires control again can be to celebrating mobility, because propagation delay time increases and can reduce throughput in travelling carriage.

In addition, in mobile communication system, in order to alleviate the load of switch in the network, known have a technology (for example above-mentioned spy opens in the flat 10-136426 communique and also is described to) of establishing the circuit control desk that sends control again outside the base station in addition.

But above-mentioned technology is for the grouping that arrives from network, at first arrive the circuit control desk more thus the circuit control desk duplicate, be distributed to the distribution subject base-station.The distribution subject base-station receives from travelling carriage and specifies the signal of base station that should receive grouping.Then, the base station of distribution object judges that according to this signal this TV station should not send, and when having judged that this TV station should send, just this grouping is sent to travelling carriage.At this moment, when in the grouping that travelling carriage receives error code taking place, travelling carriage just requires to send this grouping via the base station to the circuit control desk again.Like this, do not increased the time delay that sends to again, made to occur the problem that the traffic increases between circuit control desk and the base station in sending grouping again by the circuit control desk, making by the base station.

On the other hand, though opening the described system of flat 10-136426 communique, above-mentioned spy reduced the transfer controlled quentity controlled variable.But once shift with to send the required time more still like this.With previous and no change or need the unnecessary time, thereby the problem of communication disruption can take place.

Summary of the invention

The present invention proposes in order to solve above-mentioned problem, its purpose is to provide and can increases circulation to improve data link transmission control method, mobile communication system and the base station of overall system performance by shortening the transmission packets time delay corresponding to the moving of travelling carriage.

In order to solve above-mentioned problem, data link transmission control method of the present invention, be that the data link that sends requirement control automatically again that comprises that is used for dividing into groups to receive and dispatch between travelling carriage and a plurality of base station is transmitted the data link transmission control method of control, it is characterized in that, when requiring this base station to be connected with other base stations in being connected of travelling carriage and a base station, this base station sends the data link control information transmission to this these other base stations.

Mobile communication system of the present invention is to be made of travelling carriage and a plurality of base station, carry out the mobile communication system of information transmit-receive by grouping, it is characterized in that: travelling carriage have be used to carry out with the base station between divide into groups to receive and dispatch and comprise the travelling carriage transmission control unit that sends the data link transmission control that requires control automatically again, require the connection request device that is connected with the base station that becomes communication object; The base station have be used to carry out and travelling carriage between divide into groups to receive and dispatch and comprise the base station transmits control device that sends the data link transmission control that requires control automatically again, transmit the conveyer of data link control information transmissions with respect to other base stations; This base station transmits control device have from travelling carriage be connected with other base stations require the time, send the data link control information transmission to corresponding other base stations by conveyer.

Data chain transmitting controller of the present invention be and travelling carriage between carry out the data chain transmitting controller that loads in the base station of information transmit-receive by grouping, it is characterized in that having: comprising of being used to divide into groups to receive and dispatch automatically sent the conveyer that the relevant data link control information transmission of data link transmission control that requires control sends other base stations to again, when travelling carriage has had connection request with other base stations, the data link control information transmission is sent to the base station transmits control device of these other base stations by conveyer.

Because the invention of the invention of above-mentioned data link transmission control method, mobile communication system, the invention of data chain transmitting controller are identical on technical thought, below only effect of the present invention and effect are described by data link transmission control method.

Though data link transmission control method of the present invention is to send the data link transmission control method that requires control automatically again comprising of being used for dividing into groups to receive and dispatch between travelling carriage and a plurality of base station, but when travelling carriage with being connected an of base station in when requiring to be connected with other base stations, this base station is promptly transmitting the relevant link transmission control information of controlling and send these other base station to sending the data link that requires to control comprising of grouping transmitting-receiving automatically again.Thus, according to moving of travelling carriage, a series of data link control information transmission just transmits between the base station of carrying out the control of data link transmission, and this data link transmission control is just continued in new base station, carries out the transmission again of the grouping that no show confirms.

So, compare with the existing situation of proceeding data link transmission control by a base station, just can avoid strengthening it and transmitting into and prolong because of being grouped in increasing of transmitting between the base station, thereby can moving corresponding to travelling carriage, shorten the transmission packets time delay, increase circulation and improve the overall performance of system.

Under data link transmission control method of the present invention, base station can send the data link control information transmission to these other base station in the moment of transmitting with the grouping that sends to travelling carriage to other base stations simultaneously, also can send these other base station to constantly different moment of the transmission of the grouping that sends to travelling carriage.

In other words, can constitute in mobile communication system of the present invention, make the conveyer of being located in the base station also transmit the grouping that sends to travelling carriage with respect to other base stations, the base station transmits control device then with the data link control information transmission with to the constantly identical or different moment of the transmission of the grouping that sends to travelling carriage of other base stations, send other base stations to by conveyer.Perhaps, data chain transmitting controller of the present invention can constitute, the grouping that makes transmitting device also will send to travelling carriage sends other base stations to, the base station transmits control device then the data link control information transmission with to the constantly identical or different moment of the transmission of the grouping that sends to travelling carriage of other base stations, send other base stations to by conveyer.

In data link transmission control method of the present invention, preferably make the base station that becomes transfer source according to travelling carriage and connection requests other base stations, with the data link control information transmission relevant and/or send to the grouping of this travelling carriage and after the data link control information transmission is sent to other base stations with this travelling carriage, when receiving the grouping that sends to this travelling carriage, send the grouping that receives to this other base stations, perhaps, in mobile communication system of the present invention, preferably make the base station transmits control device be located in the base station according to travelling carriage and connection requests other base stations, with the data link control information transmission relevant and/or send to the grouping of this travelling carriage and after the data link control information transmission is sent to other base stations with this travelling carriage, when receiving the grouping that sends to this travelling carriage, the grouping that receives is sent to other base station by the conveyer conveyer.In addition, in data chain transmitting controller of the present invention, preferably make the base station transmits control device according to travelling carriage and connection requests other base stations, with the data link control information transmission relevant with this travelling carriage and/or send to this travelling carriage grouping and after the data link control information transmission is sent to other base stations, when receiving the grouping that sends to this travelling carriage, the grouping that receives is sent to other base station by conveyer.

At this moment, after sending other base stations to, the received meeting in group that sends to this travelling carriage in this base station (base station of transfer source) fully sends this base station to, the data link that therefore can continue more reliably to carry out between the base station transmits control, thereby can improve the reliability of data link transmission control.

Data link transmission control method of the present invention also preferably, after there have been travelling carriage and connection request this base station in other base stations that become transmission object soon, during the base station receives the data link control information transmission of relevant this travelling carriage and/or receives the grouping and data link transmission control control information of relevant this travelling carriage thus, receiving when sending to the grouping of this travelling carriage, with the packet memory that receives in memory.Perhaps, mobile communication system of the present invention preferably is constructed such that the base station transmits control device of being located in the base station, after being right after travelling carriage and connection request this base station, to by before during the base station that connected receives the data link control information transmission of relevant this travelling carriage and/or sends to the grouping and data link control information transmission of this travelling carriage, with the packet memory that receives in memory, perhaps, data chain transmitting controller of the present invention preferably constitutes, be right after travelling carriage had make base station transmits control device and the connection request of base station that is mounted with this data chain transmitting controller after, to by before during the base station that connected receives the data link control information transmission of relevant this travelling carriage and/or sends to the grouping and data link control information transmission of this travelling carriage, when receiving the grouping that sends to this travelling carriage, with the packet memory that receives in memory.

At this moment, in becoming other base stations of transmission object, after being right after travelling carriage and connection requests these other base stations, during receiving the data link control information transmission of relevant this travelling carriage by a base station and/or sending to the grouping and data link control information transmission of travelling carriage, the received packet memory that sends to this travelling carriage is in the memory that can not discard, thereby can continue to carry out data link transmission between the base station more reliably, be improved the reliability of data link transmission control.

In data link transmission control method of the present invention, other base stations of becoming transmission object are sent in the grouping that receives travelling carriage again require and do not receive when sending to the grouping of this travelling carriage, send transmission requirement the grouping that sends to this travelling carriage with respect to this base station by a base station.In addition, mobile communication system of the present invention, preferably constitute and the base station transmits control device be located in the base station is sent in the grouping that receives travelling carriage require and do not receive when sending to the grouping of this travelling carriage again, send transmission requirement the grouping that sends to this travelling carriage with respect to the base station that connects before this by a base station.Have again, data chain transmitting controller of the present invention preferably constitutes and the base station transmits control device is sent in the grouping that receives travelling carriage require and do not receive when sending to the grouping of this travelling carriage by a base station, send sending to the transmission requirement of this travelling carriage with respect to the base station that connects before this again.

At this moment, becoming among other base stations of transmission object, send requirement again though received the grouping of travelling carriage.But for do not receive one base station, transfer source send to the grouping of this travelling carriage the time, owing to this base station has been sent the transmission requirement of the grouping that sends to this travelling carriage, just can transmit the grouping of issuing this travelling carriage quickly, by make continue after rapidization of processing and can increase circulation.

The present invention is the continuation process of the transmission of the data link from a base station to other base stations control, be not limited to send to the grouping of travelling carriage and the mode that the data link control information transmission transmits simultaneously, also can be as shown below, transmit stage by stage, specifically, in data link transmission control method of the present invention, base station is when having had connection request travelling carriage and other base stations, transmission is with respect to the data link control information transmission of this travelling carriage, and, also the grouping that sends to this travelling carriage can be transmitted these other base station when receiving transmission from the grouping that sends to travelling carriage of this base station when requiring.Mobile communication system of the present invention also can constitute, make the base station transmits control device be located in this base station when connection request travelling carriage and other base stations has been arranged, transmission is with respect to the data link control information transmission of this travelling carriage, and when the transmission that receives the grouping that sends to this travelling carriage from these other base stations required, the grouping that then will send to this travelling carriage sent this base station to.Data chain transmitting controller of the present invention also can constitute, make the base station transmits control device when connection request travelling carriage and other base stations has been arranged, transmission is with respect to the Data Transmission Controlling information of this travelling carriage, and receive the transmission that sends to this travelling carriage from this base station when requiring, send the grouping that sends to this travelling carriage to this base station.

Like this, when between a base station and other base stations, exchanging, application receives the transmission requirement of the grouping that sends to this travelling carriage from other base stations of transmission object, by passing on the grouping that sends to this travelling carriage, just can carry out the continuation process of data link data unit more reliably from a base station to other base stations.

In addition, the transmission of grouping can also be that unit transmits with the piece of cutting apart 1 grouping with the unit of being grouped into not only preferably.Owing to can just can between the base station, send the piece of no show again with block unit in passing on, thereby help reducing the conveying capacity of grouping.But, data link transmission control method of the present invention, preferably can carry out following judgement: in a base station, make the grouping capsuleization of data link control information transmission and transmission, and will represent that being recorded in this capsule by the aggregate value of length that the capsule that capsuleization obtains divides the grouping of the length of data link control information transmission of group length and transmission divides in the title of group and transmit this capsule and divide group, when dividing from the capsule that sends after length that this capsule that is write down the title of group divides group deducts the length for heading that this capsule divides group, when being not equal to the length of grouping of this transmission of writing down in the title that is transmitted, judge that this capsule divides group and constituted by having comprised the data link control information transmission.

In addition, in the mobile communication system of the present invention, conveyer preferably includes: the capsule makeup of the grouping capsuleization of data link control information transmission and transmission is put; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of data link control information transmission of length of group and transmission is recorded in this capsule divides in the title of group, transmits the capsule that this capsule divides group and divides the group conveyer; Divide length that this capsule that is write down the title of group divides group from the capsule that is transmitted and deduct this capsule and divide the length of grouping of this transmission of writing down in the title of grouping of the length of length gained of title of group and transmission when unequal, judge that it is by the judgment means that constitutes that comprises that the data link control information transmission constituted that this capsule divides group.

In addition, in the data chain transmitting controller of the present invention, conveyer preferably includes: the capsule makeup of the grouping capsuleization of data link control information transmission and transmission is put; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of data link control information transmission of length of group and transmission is recorded in this capsule divides in the title of group, transmits the capsule that this capsule divides group and divides the group conveyer; Divide length that this capsule that is write down the title of group divides group from the capsule that is transmitted and deduct this capsule and divide the length of grouping of this transmission of writing down in the title of grouping of the length of length gained of title of group and transmission when unequal, judge that it is by the judgment means that constitutes that comprises that the data link control information transmission constituted that this capsule divides group.

By foregoing invention, can judge reliably that in a base station capsule that is transmitted divides group and whether comprises the data link control information transmission, and can carry out control glossily based on the data link control information transmission.

But the base station of carrying out in the present invention, data link transmission control also can adopt the control base station identification information that the data link control information transmission will not be used to discern the base station of carrying out this data link transmission control to send to the mode of travelling carriage.

In other words, data link transmission control method of the present invention is to be used between travelling carriage and a plurality of base station, comprising of dividing into groups to receive and dispatch sends the data link transmission control method that the data link that requires control is transmitted control automatically again, it is characterized in that, carry out the base station of data link transmission control, replace and send the data link control information transmission, and the control base station identification information that will be used to discern the base station of carrying out this data link transmission control sends to travelling carriage, this travelling carriage base station that then data link transmission control is carried out in identification according to the control base station identification information.

Mobile communication system of the present invention is to pass through the mobile communication system that information transmit-receive is carried out in grouping by what travelling carriage and a plurality of base station constituted, it is characterized in that, the base station has: be used for and travelling carriage between the transmitting-receiving of dividing into groups, comprise the base station transmits control device that sends the data link transmission control that requires control automatically again, replace the dispensing device that the control base station identification information that sends the data link control information transmission and will be used to discern the base station of carrying out data link transmission control sends to travelling carriage; Travelling carriage has: the base station of carrying out data link transmission control with identification according to the control base station identification information carry out with the base station between be used to divide into groups to receive and dispatch comprise the travelling carriage transmission control unit that sends the data link transmission control that requires control automatically again, require the connection request device that is connected with the base station that becomes communication object.

Data chain transmitting controller of the present invention be and travelling carriage between carry out the data chain transmitting controller that loads in the base station of information transmit-receive by grouping, it is characterized in that having: carry out and travelling carriage between be used to divide into groups to receive and dispatch comprise the base station transmits control device that automatic transmission requires the data link transmission control controlled; The control base station identification information that replace to send the data link control information transmission and will be used to discern the base station of carrying out data link transmission control sends to the dispensing device of travelling carriage.

Under said circumstances, the base station of carrying out data link transmission control replace send the data link control information transmission and send be used to discern the base station of carrying out this data link transmission control the control base station identification information to travelling carriage, thus, travelling carriage can be discerned the base station of carrying out data link control according to the control base station identification information.So travelling carriage can and carry out between the base station of this data link transmission control, send comprising of being used to divide into groups to receive and dispatch the data link transmission control that requires control (for example with the connection request of new base station etc.) automatically again.Like this, travelling carriage and base station use the control base station identification information to carry out data link transmission control by replacing the data link control information transmission, just can reduce the data volume of the control information of transmitting-receiving, are reduced the traffic of network.But, data link transmission control method of the present invention, preferably can carry out following judgement: in a base station, make the control base station identification information and transmit the grouping capsuleization, and will represent that being recorded in this capsule by the aggregate value of length that the capsule that capsuleization obtains divides the grouping of the length of data link control information transmission of group length and transmission divides in the title of group and transmit this capsule and divide group, when dividing from the capsule that sends after length that this capsule that is write down the title of group divides group deducts the length for heading that this capsule divides group, when being not equal to the length of grouping of this transmission of writing down in the title that is transmitted, judge that this capsule divides group and constituted by having comprised the data link control information transmission.

In addition, in the mobile communication system of the present invention, dispensing device preferably includes: the capsule makeup of the grouping capsuleization of control base station identification information and transmission is put; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of data link control information transmission of length of group and transmission is recorded in this capsule divides in the title of group, transmits the capsule that this capsule divides group and divides the group conveyer; Divide length that this capsule that is write down the title of group divides group from the capsule that is transmitted and deduct this capsule and divide the length of grouping of this transmission of writing down in the title of grouping of the length of length gained of title of group and transmission when unequal, judge that it is by the judgment means that constitutes that comprises control base station identification information constituted that this capsule divides group.

In addition, in the data chain transmitting controller of the present invention, dispensing device preferably includes: the capsule makeup of the grouping capsuleization of control base station identification information and transmission is put; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of data link control information transmission of length of group and transmission is recorded in this capsule divides in the title of group, transmits the capsule that this capsule divides group and divides the group conveyer; Divide length that this capsule that is write down the title of group divides group from the capsule that is transmitted and deduct this capsule and divide the length of grouping of this transmission of writing down in the title of grouping of the length of length gained of title of group and transmission when unequal, judge that it is by the judgment means that constitutes that comprises that control desk base identifying information constituted that this capsule divides group.

By foregoing invention, can judge reliably that in a base station capsule that is transmitted divides group and whether comprises the control base station identification information, and can carry out control glossily based on the control base station identification information.

To achieve these goals, data link transmission control method of the present invention is that the automatic data link that requires control that sends again that comprises that is used for dividing into groups to receive and dispatch between travelling carriage and a plurality of base station is transmitted the data link transmission control method of controlling, it is characterized in that: the grouping after to the additional identifying information that is useful on specific this grouping of the grouping that sends to travelling carriage of base station is stored, and duplicates simultaneously; Other base stations are given with this packet distribution of duplicating in a base station; The grouping that other base station stored should be distributed; Comprise a base station or a plurality of base station then will add identification packets of information maybe the grouping of this distribution send to travelling carriage.

In other words, in said method, a base station among a plurality of base stations is additional identifying information (for example uniqueness number, literal, mark or their combination etc.) to be used for specific this grouping in the grouping that sends to travelling carriage, the packet memory that this is additional is duplicated simultaneously, gives other base stations with this packet distribution of duplicating.In addition, for the additional grouping that this identifying information is arranged, both can be additional in local exchange with identifying information by a base station, also can receive the additional in advance identification packets of information that has by other base stations.

Like this, other base station stored are somebody's turn to do the grouping of distribution.Then, the one or more base stations that comprise a base station will add the identification packets of information maybe the grouping of this distribution send to travelling carriage.So, owing to can outside the base station, not establish the circuit control desk that carries out packet distribution in addition, by one or more base station grouping is sent to travelling carriage in each base station stored grouping, just can reduce the traffic, shortening transmission packets time delay in the network, and can increase circulation, improve the overall performance of system.

In order to achieve the above object, data link transmission control method of the present invention is used for dividing into groups to receive and dispatch between travelling carriage and a plurality of base station, comprise and send the data link transmission control method that requires control automatically again, it is characterized in that, a base station is for the additional identifying information that is used for specific this grouping of the grouping that sends to travelling carriage, a base station stored is duplicated the additional identification packets of information that has simultaneously, other base stations are given with this packet distribution of duplicating in a base station, other base station stored should distribution grouping, the one or more base stations that comprise a base station then will with the grouping of identifying information maybe the grouping of this distribution send to travelling carriage.

In other words, under the method, a base station among a plurality of base stations is to the additional identifying information (for example symbol of uniqueness, literal, mark or their combination etc.) to be used for specific this grouping of the grouping that sends to travelling carriage, the additional grouping that this identifying information is arranged is duplicated in storage simultaneously, gives other base stations with the packet distribution of being duplicated.Then, the one or more base stations that comprise a base station will add the identification packets of information maybe the grouping of this distribution send to travelling carriage.Like this, needn't outside the base station, establish the circuit control desk that carries out packet distribution in addition, stores packets in each base station, because one or more base station sends to travelling carriage with grouping, just can reduce the traffic in the network, by shortening the transmission packets time delay, just can increase the overall performance that circulation improves system.

In data link transmission control method of the present invention, base station (comprising a base station and other base station) is utilized with respect to the overtime deletion of the timer that divides into groups divides into groups, or arrive the notice deletion grouping of the intention of travelling carriage by grouping and same grouping, perhaps according to the notice deletion of the identifying information that is used for the specific grouping that should delete grouping corresponding to identifying information.The deletion of the grouping in can storing in the base station is glossily thus handled.

At this moment, base station will be when will being used for the specific identifying information that should delete grouping and notifying other base stations, preferably adopt first method of when the deletion grouping of this base station, notifying this identifying information, fix time in second method of information of the notice grouping of deleting at last, or according to one or more the combination in these three kinds of methods of third party's method of the establish rules identifying information of notifying this grouping when then deleting determined specific cluster.

In data link transmission control method of the present invention, preferably make a base station receive intention with new base station during as the requiring of the base station of packet distribution object from travelling carriage, duplicate the additional grouping that identifying information in this base station stored is arranged, and the packet distribution of duplicating is arrived new base station.Thus, new base station can obtain the additional grouping that the identifying information of storing in the base station is arranged, and can be according to the feasible base station work as the packet distribution object of the requirement of travelling carriage.

In data link transmission control method of the present invention, preferably make other base stations receive intention when these other base stations being excluded in outside the base station of packet distribution object from travelling carriage, delete the grouping that sends to travelling carriage in these other base station stored.Like this, be excluded in the grouping that sends to this travelling carriage that storage just can be deleted in base station outside the packet distribution subject base-station.Promptly put in order and be unwanted grouping.In addition, above-mentioned other base stations also can directly receive the requirement of the travelling carriage except being intended to from this travelling carriage.Or also can carry out this reception via a base station.

In the link transmission control method of data of the present invention road, preferably make a base station, other base stations or the two are when reception sends to the grouping of travelling carriage with storage, notify this travelling carriage with the information of this grouping of storage, this travelling carriage is after receiving this notice, select a base station from the base station of being notified, require this base station to divide into groups to send, the base station that is required promptly sends this grouping.That is to say, owing to be not only a base station, the grouping that sends to this travelling carriage has also been stored in other base stations, thereby by having stored the information notice travelling carriage of this grouping, travelling carriage is by selecting just to realize that a base station that will require to divide into groups to send sends to travelling carriage from this grouping.

Preferably make a base station, other base stations or the two this moment, when storing a plurality of grouping that sends to travelling carriage, send when requiring when receiving from this travelling carriage, this grouping is sent to this travelling carriage, to store a plurality of these travelling carriages of Notice of Intention that send to the grouping of this travelling carriage simultaneously, in view of the above, can carry out notifying travelling carriage in the concentrated area, can alleviate the load of this notifier processes the information of stores packets.For example can consider the grouping that sends from the base station is carried out segmentation and notified the mode that has later grouping.

In data link transmission control method of the present invention, preferably make travelling carriage when change is seted out the base station of sending to the grouping that sends to local exchange, in the base station in change source, when sending later on, the base station of transmission intention and the identifying information notice change object of the initial grouping that sends object of the grouping of local exchange will be required to send to.Like this, end and the communicating by letter of change base, source, from the base station of change object to the grouping transmission of travelling carriage, just can be according to the requirement of travelling carriage, from once more, carry out grouping is sent to the change of the base station of travelling carriage glossily corresponding to the grouping that sends the initial identifying information that divides into groups of object.

In the transfer control method of data link of the present invention, preferably make travelling carriage measure the quality of reception of the signal that sends by a plurality of base stations, and travelling carriage is according to the quality of reception of relevant each base station, selection will send to the base station that the grouping of local exchange sends, and travelling carriage then requires to send to the transmission of the grouping of local exchange to a selected base station.For example can be elected to be the highest base station of the quality of reception etc. thus is a base station, realizes that the grouping from the base station of this selection to travelling carriage sends and be able to good state.

In data link transmission control method of the present invention, preferably make travelling carriage measure the quality of reception of the signal that sends from a plurality of base stations, travelling carriage is then according to the quality of reception about each base station, selection is notified a selected base station to the base station that the grouping that sends to local exchange sends with the receiving quality of relevant each base station, other each base stations are judged from the predetermined packet of packets of this base distribution whether send to travelling carriage, and this base station then will be indicated to other base stations according to the transmit operation of this judged result.Thus, according to the quality of reception of each base station, award the indication of other each base stations corresponding to above-mentioned judged result, other base station just can appropriately be carried out transmit operation and avoid transmit operation.

In data link transmission control method of the present invention, preferably make the quality of reception of travelling carriage mensuration by the signal that a plurality of base station sent, travelling carriage and/or each base station then will send to the base station of answering the call forwarding state to the requirement that communications status is done to shift according to the quality of reception of relevant each base station.Thus, can send transfer requirement from travelling carriage, and the base station just can be transferred to appropriate communication attitude corresponding to the appropriate communications status of the time averaging quality of reception.

Above-mentioned communications status preferably includes: first state that travelling carriage is not carried out the branch group of received; The additional identifying information that is used for specific this grouping in the grouping that sends to travelling carriage.Make grouping after additional can send to second state of travelling carriage; The additional identifying information that is used for specific this grouping duplicates the grouping after adding in the grouping that sends to travelling carriage, distributes the grouping after duplicating and can send this at the same time the third state of the grouping after adding; Receive the four condition that the grouping of losing a group and can will duplicate sends to travelling carriage that duplicates from the base station that is in the third state.

In addition, data link transmission control method of the present invention, preferably can carry out following judgement: in a base station, make the grouping capsuleization of identifying information and distribution, and will represent that being recorded in this capsule by the aggregate value of length that the capsule that capsuleization obtains divides the grouping of the length of identifying information of group length and distribution divides in the title of group and distribute this capsule and divide group, when the capsule of sending from branch divides after length that this capsule that is write down the title of group divides group deducts the length for heading that this capsule divides group, when being not equal to the length of grouping of this distribution of writing down in the title of being distributed, judge that this capsule divides group and constituted by having comprised the data link control information transmission.In this case, the base station can judge reliably that the capsule of being distributed divides group and whether contains identifying information, and can carry out the control based on identifying information glossily.

But the invention of above-mentioned data link transmission control also can be used as the invention of following mobile communication system to be understood.The invention of this two aspect is identical on technical thought, can serve the same role and effect.

In other words, mobile communication system of the present invention is to be made of travelling carriage and a plurality of base station, the transmitting-receiving of carrying out the information of being undertaken by grouping comprises the mobile communication system that sends the data link transmission control that requires control automatically more simultaneously, it is characterized in that the base station has: the grouping that sends to travelling carriage has been added the reproducing unit that the grouping of the identifying information that is used for specific this grouping is duplicated; The packet distribution of duplicating is given the dispensing device of other base stations; Will be by the additional storage device that the identification packets of information is arranged or stored of local exchange by the grouping of other base station distributions; The additional grouping that has identification packets of information or branch to send is sent to the dispensing device of travelling carriage.

In other words, mobile communication system of the present invention is made of travelling carriage and a plurality of base station, carry out information transmit-receive by grouping and comprise the mobile communication system that sends the data link transmission control that requires automatically more simultaneously, it is characterized in that this base station has: to the additional identifying information attachment device that is used for the identifying information of specific this grouping of the grouping that sends to travelling carriage; Duplicate the additional reproducing unit that the identification packets of information is arranged; The dispensing device of other base stations is given in the grouping that distribution is duplicated; Store the storage device of the grouping or the grouping that distribute other base stations of additional identification information by local exchange; The additional grouping that has identification packets of information or other base stations to distribute is sent to the dispensing device of travelling carriage.

At this moment, in mobile communication system of the present invention, the base station preferably also is provided with the delete device that is used to delete storage device institute stored packet.

The identifying information that above-mentioned base station preferably also is provided with the grouping that should delete is notified the elimination packet notification device of other base stations, when carrying out this notice then according to following method: notify when the deletion grouping by this base station this deletion grouping identifying information first method, fix time in the notice grouping of deleting at last information second method or according to establish rules and notify the three therapeutic methods of traditional Chinese medicine of the identifying information of this grouping when then deleting determined specific cluster, the combination of one or more of these three kinds of methods.

Base station in the mobile communication system of the present invention preferably also is provided with, and sends when requiring receiving grouping from travelling carriage again, sends the grouping retransmission unit that requires and send grouping more again according to this.

Base station in the mobile communication system of the present invention preferably also is provided with, and sends to the grouping of travelling carriage and when storing, the information of this group of storage is notified the storage notifying device of this travelling carriage in reception; The feature of dispensing device then is grouping to be sent to this travelling carriage according to the request of this travelling carriage; This travelling carriage also is provided with: the choice device of selecting a base station when receiving this notice from the base station of being notified; Selected base station is required the transmission claimed apparatus of grouping transmission.

Above-mentioned base station preferably also is provided with the notice control device.To receive under the situation that sends requirement from this travelling carriage storing the many groupings that send to travelling carriage, when grouping being sent to this travelling carriage, when notifying this travelling carriage, many items that send to the grouping of this travelling carriage control for storing by the storage notifying device by dispensing device.

The notifying device when travelling carriage in the mobile communication system of the present invention preferably also is provided with change, with when change sends to the base station of local exchange with grouping, when after will ending, sending the original base station of notice change, intention that notice request sends the grouping that sends to local exchange and the identifying information that sends the initial grouping of object.

Travelling carriage in the mobile communication system of the present invention preferably also is provided with: the determinator of measuring the quality of reception of the signal that sends a plurality of base stations; According to the quality of reception of relevant each base station, select the choice device of a base station that the grouping that sends to local exchange is sent; Selected base station required transmission claimed apparatus that the grouping that sends to local exchange is sent.

Travelling carriage in the mobile communication of the present invention preferably also is provided with: measure the determinator of the quality of reception of the signal that a plurality of base stations send, select the choice device of a base station that the grouping that sends to local exchange is sent according to the quality of reception of relevant each base station, the quality of reception of relevant each base station notified the quality of reception notifying device of a selected base station; And this base station is preferably also comprised when selecting as a base station for local exchange: according to the quality of reception of relevant each base station, whether the predetermined packet of packets that local exchange is distributed sends to the judgment means that travelling carriage is judged with regard to other each base stations; To indicate indicating device according to the transmit operation of this judged result to the base station, base.

The travelling carriage of communication system of the present invention preferably also is provided with, and when receiving same grouping respectively by a plurality of base stations, carries out the diversity receiver that receives with respect to this grouping diversity type.

Travelling carriage in the mobile communication system of the present invention preferably also is provided with: the determinator of measuring the quality of reception of the signal that a plurality of base stations send; According to relevant each base station institute quality of reception judge each base station have how can decide in the multiple communications status a kind of decision maker of communications status; Require the state transitions claimed apparatus of call forwarding state according to the base station of the corresponding call forwarding state of this result of determination.

This fixed a plurality of communications status preferably include; Travelling carriage is not carried out first state of branch group of received; The additional identifying information that is used for specific this grouping in the grouping that sends to travelling carriage makes grouping after adding can send to second state of travelling carriage; The additional identifying information that is used for specific this grouping duplicates the grouping after adding in the grouping that sends to travelling carriage, distributes the grouping after duplicating and can send this at the same time the third state of the grouping after adding; Receive the grouping duplicated from the base station that is in the third state and the grouping that can will duplicate sends to the four condition of travelling carriage.

In addition, in the mobile communication system of the present invention, dispensing device preferably includes: the capsule makeup of the grouping capsuleization of identifying information and distribution is put; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of identifying information of length of group and distribution is recorded in this capsule divides in the title of group, distributes the capsule that this capsule divides group and divides the component transmitting apparatus; Divide length that this capsule that is write down the title of group divides group from the capsule of being distributed and deduct this capsule and divide the length of grouping of this distribution of writing down in the title of grouping of the length of length gained of title of group and distribution when unequal, judge that it is by the judgment means that constitutes that comprises that identifying information constitutes that this capsule divides group.

But for the major part of aforementioned data link transmission control of the present invention and mobile communication system of the present invention, also can be applicable to the invention of following base station and the invention of travelling carriage.These inventions can have identical effect and effect because technical thought is identical.

In other words, base station of the present invention be with travelling carriage together, constitute and carry out carrying out the base station that information transmit-receive comprises the mobile communication system that sends the data link transmission control that requires control automatically more simultaneously by grouping, and a plurality of base stations are arranged in mobile communication system, and this base station is characterised in that and has: the reproducing unit that the additional grouping that is useful on the identifying information of specific this grouping of the grouping that sends to travelling carriage is duplicated; Give the dispensing device of other base stations with the packet distribution of being duplicated, the storage device that will be stored by additional grouping with identifying information of local exchange and the grouping of sending by other base station branches; Institute's stored packet is sent to the dispensing device of travelling carriage.

Specifically, base station of the present invention is to comprise mobile communication system that sends the data link transmission control that requires control automatically again and the base station that travelling carriage constitutes together simultaneously with carry out information transmit-receive by grouping, it is characterized in that having: include a plurality of to the additional identifying information attachment device that is used for the identifying information of specific this grouping of the grouping that sends to travelling carriage in mobile communication system; Duplicate the additional reproducing unit that the identification packets of information is arranged; The packet distribution of duplicating is given the dispensing device of other base stations; The additional storage device that the grouping that identification packets of information and other base stations distribute is arranged of storage in local exchange; Institute's stored packet is sent to the dispensing device of travelling carriage.

Above-mentioned travelling carriage is that the quality of reception of the signal that sends according to a plurality of base stations is selected a base station that the grouping that sends to this travelling carriage is sent, and notify each base station with the quality of reception of relevant each base station, therefore this travelling carriage preferably also is provided with: when selecting local exchange as a base station, according to the quality of reception of relevant each base station, judge with respect to each other base stations whether the predetermined packet of packets of local exchange distribution sends to the judgment means of travelling carriage; To indicate indicating device according to the transmit operation of this judged result to other base stations.

In addition, in the base station of the present invention, dispensing device preferably includes: the capsule makeup of the grouping capsuleization of identifying information and distribution is put; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of identifying information of length of group and distribution is recorded in this capsule divides in the title of group, distributes the capsule that this capsule divides group and divides the component transmitting apparatus; Divide length that this capsule that is write down the title of group divides group from the capsule of being distributed and deduct this capsule and divide the length of grouping of this distribution of writing down in the title of grouping of the length of length gained of title of group and distribution when unequal, judge that it is by the judgment means that constitutes that comprises that identifying information constitutes that this capsule divides group.

Travelling carriage of the present invention is to constitute by grouping with a plurality of base stations to carry out the travelling carriage that information transmit-receive comprises the mobile communication system that automatically sends the data link transmission control that requires again simultaneously together, it is characterized in that having: the determinator of measuring the quality of reception of the signal that a plurality of base stations send; Select a choice device that is used for base station that the grouping that sends to local exchange is sent according to the quality of reception of relevant each base station; A selected base station required transmission claimed apparatus that the grouping that sends to local exchange is sent.

Travelling carriage of the present invention is to constitute by grouping with a plurality of base stations to carry out the travelling carriage that information transmit-receive comprises the mobile communication system that sends the data link transmission control that requires automatically more simultaneously together, it is characterized in that having: each judges whether the predetermined grouping of local exchange distribution is sent to travelling carriage with regard to other according to the quality of reception of relevant each base station, to having the determinator of measuring to the quality of reception of a plurality of base stations signal transmitted of other base station functions indicating according to the transmit operation of this judged result; Select the choice device of a base station that the grouping that sends to local exchange is sent according to the quality of reception of relevant each base station; The quality of reception of relevant each base station is notified the quality of reception notifying device of a selected base station.

Travelling carriage of the present invention is to constitute by grouping with a plurality of base stations to carry out the travelling carriage that information transmit-receive comprises the mobile communication system that automatically sends the data link transmission control that requires control more simultaneously together, it is characterized in that having: the determinator of measuring the quality of reception of the signal that a plurality of base stations send; According to the quality of reception of relevant each base station judge each base station be in decide the decision maker of which kind of communications status among the multiple communications status; Base station that should the call forwarding state is required the state transitions claimed apparatus of call forwarding state according to this result of determination.

This fixed a plurality of communications status preferably include: first state that travelling carriage is not carried out the branch group of received; The additional identifying information that is used for specific this grouping in the grouping that sends to travelling carriage makes grouping after adding can send to second state of travelling carriage; The additional identifying information that is used for specific this grouping duplicates the grouping after adding in the grouping that sends to travelling carriage, distributes the grouping after duplicating and can send this at the same time the third state of the grouping after adding; Receive the grouping duplicated from the base station that is in the third state and the grouping that can will duplicate sends to the four condition of travelling carriage.

Among each of above-mentioned travelling carriage, preferably also be provided with, when receiving same grouping respectively, can carry out the diversity receiver that diversity type receives this grouping by a plurality of base stations.

The travelling carriage control program that the invention of above-mentioned travelling carriage is carried out as the computer that is used for loading in the travelling carriage then can be described below.

Specifically, travelling carriage control program of the present invention is to carry out information transmit-receive by grouping and comprise simultaneously in the travelling carriage in the mobile communication system that sends the data link transmission control that requires control automatically again constituting with a plurality of base stations together, the travelling carriage control program that is used for execution in the set therein computer, as shown in Figure 3, it is characterized in that carrying out following step: the determination step S441 that measures the quality of reception of a plurality of base stations signal transmitted by computer; Select to send to the selection step S442 of the base station that the grouping of local exchange sends according to the quality of reception of relevant each base station; The transmission that selected base station is required the grouping that sends to local exchange is sent requires step S443.

Travelling carriage control program of the present invention is to constitute in the travelling carriage that comprises when carrying out information transmit-receive by grouping in the mobile communication system that sends the data link transmission control that requires control automatically again with a plurality of base stations together, the travelling carriage control program that is used for execution in the set therein computer, as shown in Figure 4, it is characterized in that carrying out following step by computer: each judges whether the predetermined grouping of local exchange distribution is sent to travelling carriage with regard to other according to the quality of reception of relevant each base station, to having the determination step S451 that measures to the quality of reception of a plurality of base stations signal transmitted of other base station functions indicating according to the transmit operation of this judged result; Select the selection step S452 of a base station that the grouping that sends to local exchange is sent according to the quality of reception of relevant each base station; The quality of reception of relevant each base station is notified the quality of reception controlled step S453 of a selected base station.

Travelling carriage control program of the present invention is to constitute in the travelling carriage that comprises when carrying out information transmit-receive by grouping in the mobile communication system that sends the data link transmission control that requires control automatically again with a plurality of base stations together, the travelling carriage control program that is used for execution in the set therein computer, as shown in Figure 5, it is characterized in that carrying out following step: the determination step S461 that measures the quality of reception of the signal that a plurality of base stations send by computer; According to the quality of reception of relevant each base station judge each base station be in decide the determination step S462 of which kind of communications status among the multiple communications status; Require the state transitions of call forwarding state to require step S463 according to this result of determination to base station that should the call forwarding state.

Machine readable recording medium of the present invention is characterised in that and can writes down any of above-mentioned travelling carriage control program.As shown in Figure 6, the travelling carriage control program that is write down on this recording medium 62 can be read by the reading part of computer set in the travelling carriage 60 61.

Description of drawings

Fig. 1 is the system construction drawing of existing mobile communication system.

Fig. 2 is the time diagram that is used to illustrate the operation of existing data in mobile communication system link transmission control method.

Fig. 3 is the flow chart that shows bright travelling carriage control program first pattern of the present invention.

Fig. 4 is the flow chart that shows bright travelling carriage control program second pattern of the present invention.

Fig. 5 is the flow chart that shows bright travelling carriage control program three-mode of the present invention.

Fig. 6 records the recording medium of travelling carriage control program and the structure chart of ancillary equipment thereof.

Fig. 7 is the system construction drawing of the mobile communication system of first, second form of implementation.

Fig. 8 is the time diagram of the operation of explanation first form of implementation.

Fig. 9 is used for specifying the operation correlation diagram that first form of implementation is operated.

Figure 10 A shows the packet configuration in the data link transmission control part of bright first form of implementation.

Figure 10 B shows the grouping in the data link transmission control part of bright second form of implementation and the structure of piece.

Figure 11 is the system construction drawing of the communication system of the 3rd form of implementation.

Figure 12 is the functional block diagram of the structure of the data link transmission control part in the base station of the 3rd form of implementation.

Figure 13 is the functional block diagram of the structure of the interior data link transmission control part of the travelling carriage of the 3rd form of implementation.

Figure 14 A is the state transition diagram that is used to illustrate the sending control method of the 3rd form of implementation.

Figure 14 B is the state-transition table that shows bright each incident.

Figure 15 illustrates the position of travelling carriage in the 3rd form of implementation.

Processing when Figure 16 illustrates the base station that is grouped into Danone transmission Packet State.

Figure 17 illustrates the processing when grouping arrives the base station of idling conditions.

Figure 18 is used to illustrate that being grouped into Danone duplicates processing with the base station of transmit status.

First method of Figure 19 A explanation base station 202 notice deletion object packet numbers when the deletion grouping.

Figure 19 B explanation fix time in second method of the notice packet numbers of deleting at last.

Third party's method of Figure 19 C explanation packet numbers of the last deletion of notice when eliminating ten groupings.

Figure 20 illustrates the timer as the trigger of stored packet in deletion Figure 18 processing.

Figure 21 illustrates the situation that base station 202,212 sends to same grouping the base station respectively.

Figure 22 illustrates the operation of subject base-station and travelling carriage among the incident A.

Figure 23 illustrates the operation of subject base-station and travelling carriage among the incident B.

Figure 24 illustrates the operation of subject base-station and travelling carriage among the incident C.

Figure 25 illustrates the operation of subject base-station and travelling carriage among the incident D.

Figure 26 illustrates the operation of subject base-station and travelling carriage among the incident E.

Figure 27 is used for illustrating that the 4th form of implementation transmitted in packets shifts the table that sends control operation.

Figure 28 is the system construction drawing of the 5th form of implementation mobile communication system.

Operation when Figure 29 is used for the 5th form of implementation initial condition is described.

Figure 30 is used for illustrating transfering state operation when travelling carriage sends grouping from a plurality of base stations of the 5th form of implementation.

Figure 31 is used for illustrating transfering state operation when travelling carriage sends grouping from single base station of the 5th form of implementation.

Figure 32 is the system construction drawing of mobile communication system of carrying out first method of the 6th form of implementation.

Figure 33 A is the functional block diagram of capsuleization and transport unit.

Figure 33 B is the functional block diagram of capsuleization and distribution portion.

Figure 34 shows the structure that the IP of first method of bright the 6th form of implementation divides into groups.

Figure 35 shows the flow process of first and second method handling procedure of bright the 6th form of implementation.

Figure 36 is the system construction drawing of mobile communication system of carrying out second method of the 6th form of implementation.

Figure 37 shows the structure that the IP of second method of bright the 6th form of implementation divides into groups.

Embodiment

The following describes the various forms of implementation of data link transmission control method of the present invention and mobile communication system.

First form of implementation

At first with Fig. 7 and 8 explanations, first form of implementation of the present invention.The structure of mobile communication system in first form of implementation is described according to Fig. 7 earlier.The mobile communication system of first form of implementation comprises travelling carriage 131, a plurality of base station 102,112,122, and each base station can intercom mutually by network 1.

Travelling carriage 131 comprise by its antenna 32 with respect to wireless network carry out data transmit-receive transceiver 33, comprise aftermentioned and automatically send the data link transmission control part 34 that requires control again, and as the data I/O end 35 of the input/output terminal of grouping.Wherein data link transmission control part 34 comprises: be used for and the base station between divide into groups to receive and dispatch comprise the travelling carriage transmission control part 34A that sends the data link transmission control that requires control automatically again; The 34B of connection request portion that requirement is connected with the communication object base station.

Base station 102 comprise through its antenna 6 with respect to wireless network carry out data transmit-receive transceiver 5, comprise and described laterly automatically send the data link transmission control that requires control again and control the data link transmission control part 103 of each one base station 102 in simultaneously, when receiving the requiring of base station change, the data link control information transmission sent to the transport unit 105 of change subject base-station, and have the storage part 104 that transmits the temporary storage aera functions such as grouped data of control part 103 as data link.The structure of other base stations 112,122 is identical with base station 102.

The operation of first form of implementation is described again.At this by the communication quality of mobile station supervision with a most contiguous above base station, can be so that more the excellent communications quality communicates when judging than the base station in the communication now, this travelling carriage just requires to change the base station.When perhaps travelling carriage 131 and communication quality between the base station 102 are good when initial, then set a state of communicating by letter with this base station 102.

Base station 102 shows to importing data link input data link transmission control part 103 from the grouping of network 1 input by Fig. 8 arrow S1, comprises the data link transmission control that sends requirement control automatically again.Data link transmission control part 103 at first gives grouping attached can discern its packet numbers, exports to transceiver 5 in this packet memory.

When the packet numbers of being remembered in the packet header of this data link transmission control part 103 of input can be discerned, transceiver 5 was stored and is exported on the then not attached former state ground that should divide into groups as mentioned previously with new packet numbers.Transceiver 5 sends to travelling carriage 131 (the arrow S2 among the figure) through antenna for base station 6 after the grouping that will import is modulated into the transmission signal.

After travelling carriage 131 receives signal from travelling carriage 32 by transceiver 33,, comprise and send the data link transmission control that requires control automatically again the grouping input data link transmission control part 34 that receives.Data link transmission control part 34 is used the parity additional with respect to the grouping of input and is carried out error detection.When the result who detects had mistake for grouping, data link transmission control part 34 sent the NACK signals just for base station 102, and will send this grouping again require notification data link transmission control part 103 (arrow S3 among Fig. 8).Then, data link transmission control part 103 sends the grouping (arrow S4 among Fig. 8) of this packet numbers of having stored again.

When this divides into groups when errorless, data link transmission control part 34 should divide into groups in the output of data I/O end, the arrival of this grouping was confirmed the data link transmission control part 103 (arrow S5 among Fig. 8) of informing base station 102 by ack signal being sent to base station 102.This control part 103 is just deleted to sending the grouping of this packet numbers of storing again.

Then, by moving of travelling carriage 131, when the communication quality of travelling carriage 131 and the base station 102 of now communicating by letter worsens and with the communication quality of adjacent base station 112 when good, travelling carriage 131 at first sends the requirement (arrow S6, S7 among Fig. 8) of base station changes by the data link transmission control part 103 of 112 pairs of base stations 102, base station.This form of implementation is the method as the number of base stations of notice change object when requiring to change the base station.

The data link transmission control part 103 that receives the base station 102 that requires this base station of change sends to the data link control information transmission base station 112 (arrow S8 among Fig. 8) of changing object through transport unit 105.Be not describe with the method that up-to-date packet numbers is used as the data link control information transmission in this form of implementation becoming packet numbers that arrive to confirm.Data link transmission control part 103 is just ended grouping and is sent after the grouping with respect to travelling carriage 131 that will store is deleted fully.Be set at then, shown in arrow S9 among Fig. 8, arrive data link transmission control part 103 send to travelling carriage 131 send out group by arrow S10 show to, be sent to base station 112 to former state by transport unit 105.

The data link transmission control part 113 of the base station 112 of change object is when having imported the grouping that sends to travelling carriage 131 before the 102 input data link control information transmissions of base station, before the input of data link control information transmission, this grouping is temporary in storage part 114.After data link control information transmission input, just the next number of the up-to-date packet numbers of data link control information transmission is invested in the storage part 114 on the stored packet, described processing (arrow S11, S12, S13, S14) sends then before carrying out.

Can carry out like this and carry out the step that packet numbers resets, and can utilize data link transmission control part with the base station of travelling carriage direct communication, thereby can often can carry out data link transmission control by shortest path with moving irrespectively of travelling carriage, can shorten the transmission packets time delay than past thus.

Be described more specifically aforesaid operations with Fig. 9 below.

At first establishing travelling carriage 131 is kilter with the communication quality that changes source base station 102.Form of implementation is illustrated in F.When change subject base-station 112 is when carrying out the adjacent base station of base station 102 of data link transmission control, because sending the traffic that causes again increases with the influence of time delay increase little, so comprising, former state ground sends the data link transmission control that requires control automatically again in change source base station 102, when the change subject base-station becomes the base station 122 of leaving the base station 102 of carrying out this data link transmission control, be about to send to this travelling carriage grouping and data link control information transmission and send change subject base-station 122 to, comprise the data link transmission control that sends requirement control automatically again by change subject base-station 122.

In the moment of (1) in Fig. 9, the grouping that sends to travelling carriage is from network input base station 102.The grouping of input is given with packet numbers 1 in base station 102, additional CRC, after this grouping of storage, send to travelling carriage 131 when receiving this grouping owing to not detecting error code, will arrive affirmation and send at platform 120.Then, base station 102 is confirmed according to the arrival of this packet numbers 1, the grouping of this packet number black horse 1 that deletion is stored.

In the moment of (2) in Fig. 9, base station 102 is imported in the grouping that sends to this travelling carriage.Giving of packet numbers 2 and adding of CRC are carried out in base station 102.This sends to travelling carriage 131 after being grouped in storage.Because travelling carriage 131 detects mistake in the grouping that receives, the NACK signal is sent to base station 102 at this, require the grouping of packet numbers 2 to send again to base station 102 thus.Base station 102 sends the grouping that requires to send again packet numbers 2 in view of the above again.But owing to also detect mistake in the grouping that receives once more, 131 pairs of base stations 102 of travelling carriage require the transmission again of packet numbers 2.Carve at this moment since with good than with base station 102 of the communication quality of base station 112.112 pairs through base station base stations 102 of event require the change of base station.Base station 112 is adjacent base stations of base station 102, require the data link transmission of control to carry out in base station 102 so comprise automatic transmission again, thereby former state ground sends control to base station 102 with controlling former state.The grouping of block code 2 that then this is sent again grouping 112 sends to and moves 131 through the base station.Travelling carriage 131 is not owing to detect mistake in this grouping, just ack signal 112 sent to base station 102 through the base station, will arrive affirmation thus and send to base station 102.The arrival of the grouping of this packet numbers 2 has been confirmed in base station 102, so just delete the grouping of this packet numbers 2 of being stored.

The next one is grouped in the moment input base station 102 of (3) among Fig. 9.Adding of giving of packet numbers and CRC carried out in base station 102, storing this grouping after base station 112 sends to travelling carriage 131.Travelling carriage 131 just will arrive and confirm to send to base station 102 by base station 121 owing to undetected error in this grouping that receives.Base station 102 arrival of packet numbers 3 is in view of the above confirmed, the grouping of deletion this packet numbers 3 of storing.

The next one is grouped in the moment input base station 102 of (4) among Fig. 9.Same as described above, carry out giving and CRC additional of people's sets of numbers 4, with this packet memory after base station 111 sends to travelling carriage 131.Owing in moving, detect mistake, just require to send again packet numbers 4 at this by 112 pairs of base stations, base station 102 with 131 groupings that received.Carve at this moment, owing to be better than with base station 112 with the communication quality of base station 122, travelling carriage 131 just requires the change of base station by 122 pairs of base stations 102, base station.Because base station 102 is not the adjacent base station of change subject base-station, just base station 122 notices are comprised the change that sends the data link transmission control that requires control automatically again.

By the number of base stations that travelling carriage 131 notices are carried out data link transmission control now, base station 122 just can be recognized the data link transmission that must carry out this travelling carriage 131 after this, thereby this moment, this notice needn't be carried out in base station 102.Then grouping in the change network is sent the device of object, requirement will send to the grouping input base station 122 of this later travelling carriage.This device is to have function that change grouping such as the position log-on message that can use travelling carriage 131 sends object.In base station 102, because being the next-door neighbour, sends after the grouping of transmission again of packet numbers 4 in the moment that receives this base station change requirement, so can't help travelling carriage 131 notices with respect to the arrival affirmation of this grouping or send requirement again.Therefore, before notifying this arrival that sends grouping again affirmation or sending requirement again, base station 102 is not just to base station 122 output data link control information transmissions.So the base station 122 of Keing moment of (5) in Fig. 9 just is limited to the status of packets that sends to this travelling carriage that is in continuation storage input at this moment.

Supposing then that travelling carriage 131 sends in this does not again detect mistake in grouping.The 122 arrival affirmations with packet numbers 4 send to base station 102 so travelling carriage 131 is through the base station.Up-to-date packet numbers 4 is just notified the base station 122 of change subject base-station owing to confirmed that this sends the arrival of packet numbers 4 again in base station 102 as the data chainning control information transmission.Suppose to have when failing to arrive the grouping of affirmation, then notice fails to arrive the packet numbers and the up-to-date packet numbers of affirmation.And after this, owing to do not utilize base station 112 to send to the grouping of this travelling carriage.Base station 102 is just with this situation informing base station 112.In view of the above, the resource of the base station 112 of distributing to travelling carriage 131 can be separated in base station 112.

Base station 112 is for moment of (5) among Fig. 9 input stored packet, is that up-to-date packet numbers is 4 according to the data link control information transmission of base station 102, just gives this grouping with packet numbers 5, after adding CRC, with this packet memory and send to move and advise platform 131.Travelling carriage 131 just will arrive and confirm to send to base station 122 owing to do not detect mistake in this grouping that receives, and base station 122 is confirmed according to the arrival of this packet numbers 5, the grouping of this packet numbers 5 that deletion is stored.

As mentioned above, by carrying out aforementioned operation repeatedly, can irrespectively realize data link transmission control method of the present invention with moving of travelling carriage 131.

According to this first form of implementation, can carry out that step that packet numbers resets just can be used and the data link of the base station of travelling carriage 131 direct communications is transmitted control part, thereby the data link transmission that can have nothing to do and often can carry out shortest path with moving of travelling carriage 131 is controlled, compare with existing situation, can shorten the circulation of transmission packets time delay and increase system.

Second form of implementation

Now second form of implementation of the present invention is described with Fig. 7 and Figure 10 B.The communication quality of at first establishing travelling carriage 131 and base station 102 is a kilter.That is to say that travelling carriage 131 is in the state that can communicate by letter with the base station.

Base station 102 will comprise automatically the data link transmission control that transmission again requires control from the grouping input data link transmission control part 103 of network 1 input.This form of implementation is the situation explanation when just a packet fragmentation being become polylith to send with suitable celebrating radio frames.Data link transmission control part 103 is shown in Figure 10 B, the packet fragmentation of input is become polylith, for the succession of maintainance block gives piece attached with piece number and the packet numbers that is used to discern the grouping before cutting apart, but and then the parity of additional energy error detections such as CRC with the mistake of being given birth in the detected transmission, export to transceiver 5 then.After the piece that transceiver 5 will be imported is modulated to and sends signal, by antenna for base station 6 send to travelling carriage 131, Figure 10 A shows the packet configuration in the data link transmission control part of understanding first form of implementation.

On the other hand, after travelling carriage 131 receives signal from mobile portable antennas 32 by transceiver 33, the piece that receives is exported to data link transmission control part.Then, data link transmission control part carries out error detection with respect to the piece of input with additional parity.Testing result is in this piece during zero defect, and link data transmission control part 34 is just confirmed the arrival of this piece the data link transmission control part 103 of informing base station 102.When this piece had mistake, the data link transmission control part 103 that data link transmission control part 34 just requires informing base station 102 with sending again of this piece was also sent this piece of being stored again by the latter.Like this, if zero defect when receiving all pieces of 1 grouping, data link transmission control part 103 by with the inverse operation that is divided into each piece.Just can in data link transmit in the control part 34 these pieces are synthesized a grouping after with this grouping from data input pin 35 outputs.

Below explanation is by the situation that moves the change that produces the base station of travelling carriage 131.In this form of implementation to the base station number that travelling carriage is communicated by letter the simultaneously system of not limiting, travelling carriage can receive grouping from a plurality of base stations simultaneously.In addition, can it can be one with the other side base station that travelling carriage is communicated by letter simultaneously as described in first form of implementation certainly.

When the communication quality of the base station 102 of communicating by letter with travelling carriage 131 now has some deteriorations and with the communication quality of adjacent base station 112 when good, then can be with base station 102 and 112 two base station communications in base station.At this moment, the data link of 131 pairs of base stations 102 of travelling carriage transmission control part 103 requires the connection of base station.Because communication quality is some deteriorations, different with first form of implementation, travelling carriage 131 be in can with base station 102 and 112 two states that communicate.103 pairs of base stations of data link transmission control part, the 112 notice travelling carriages 131 that receive the base station 120 of above-mentioned connection request require the incident of connection.So it is attached with corresponding packet numbers that after this data link transmission control part 103 will import the part grouping of travelling carriage 131, sends to base station 112 by transport unit 105 then.The control that send to require again automatically to each piece is to be undertaken by data link transmission control part 113, but be used for keeping order of packets that travelling carriage receives accordingly the additional packet number then can carry out at the data link transmission control part of arbitrary base station.In this form of implementation, set data link transmission control part 103 by the base station 102 corresponding packet numbers of for this reason dividing into groups to add.The data link of base station 112 transmission control part 113 carries out the grouping of base station 102 inputs after piece cuts apart, give the preceding packet numbers of cutting apart of adding accordingly in piece number and the data link transmission control part 103, add again and send to travelling carriage 131 then with parity.

Next communication quality of establishing travelling carriage 131 and base station 102 further worsens, and can only communicate by letter with base station 112.At this moment, travelling carriage 131 is via the good base station 112 of communication quality, to data link transmission control part 103 requirements 102 transmission groupings from the base station of base station 102.The data link transmission control part 103 that receives the base station 102 of this requirement will comprise packet numbers that the grouping of the piece that arrives affirmation divides into groups therewith and the piece number that arrives affirmation, be that up-to-date packet numbers is passed through transport unit 105 then, send to the data link transmission control part 113 of base station 112 as the data link control information transmission.Then, sending to the piece of travelling carriage 131 or grouping in statu quo stores from the base station 112 into and has had the piece that sends to travelling carriage 131 or the transmission of grouping to require constantly.In addition, also stored to former state the moment that above-mentioned transmission requires into from the grouping that sends to this travelling carriage of network 1 input.

After this, sometime, the base station 102 that 112 pairs of base stations send the data link control information transmission requires to transmit grouping or the piece that sends to this travelling carriage.Above-mentioned also can be the moment that receive to promote with the signal of the transmission that sends data from travelling carriage sometime.Then, receive this data link that transmits the base station 102 that requires transmission control part 103 and be sent to all deletions of 112 backs, base station at the piece that sends to travelling carriage 131 that will be stored or grouping.Send base station 112 to with being set in the grouping former state that sends to travelling carriage 131 that arrives base station 102 after this.The data link of base station 112 transmission control part 113, will include from failing of sending of base station 102 reach affirmation piece be grouped in be divided into each piece after, only the piece that will require to send again re-sends to travelling carriage 131.Because block length fixes, when the grouping of input is known with its packet numbers and piece number, the piece of only transmission necessity just.The packet numbers according to the up-to-date packet numbers of being notified is then given in the new grouping that is distributed to travelling carriage 131 that is input to base station 112 later on.Data link transmission control part 103 also can only transmit necessary piece.

By above operation, can realize data link transmission control method of the present invention.

Like this, transmit control part owing to can use and not produce in the base station of the mobile communications that packet numbers resets data link, just can often can carry out data link transmission control, thereby can shorten the circulation of transmission packets time delay and increase system than the past with moving irrespectively of travelling carriage with shortest path.

Can consider the following as above-mentioned data link control information transmission, can adopt wherein any; (1) packet numbers, (2) that arrive affirmation have been carried out arriving packet numbers, (3) confirmed and are proposed to send the up-to-date packet numbers in the packet numbers, (4) that require, piece number, (6) that (5) arrive affirmation again and carried out arriving the form that piece number, (7) confirmed propose to send up-to-date piece number, (9) above-mentioned (1)～(8) combination in the piece number, (8) that require again.

The 3rd form of implementation

The 3rd form of implementation of the present invention now is described.The structure of the mobile communication system of the 3rd form of implementation at first is described according to Figure 11～13.The mobile communication system of this 3rd form of implementation comprises travelling carriage 231 and a plurality of base stations 202,212 and 222 as shown in figure 11, and each base station can intercom mutually by network.

Travelling carriage 231 comprises: by mobile portable antennas 232 with respect to wireless network carry out data transmit-receive transceiver 233, comprise the data link transmission control part 234 that aftermentioned automatically sends the data link transmission control that requires control again, and as the data I/O end 235 of grouped data input/input terminal.

Above-mentioned data link transmission control part 234 its functions are made up of functional block shown in Figure 13, comprise particularly: when receiving the packet memory notice of base station, from this base station, select a base station, select the selection portion 234A of a base station that the grouping that sends to local exchange is sent simultaneously according to the quality of reception of each base station; The transmission that selected base station is required to send grouping requires the 234B of portion; When change sent to the base station of grouping of local exchange, the base station in notice change source ended to send, and will send the notice 234C of portion when requiring change that the initial packet numbers notice with object changes subject base-station simultaneously; Measure the quality of reception of the signal that a plurality of base stations send determination part 234D, with relevant each base station quality of reception notice according to the quality of reception selected the quality of reception notice 234E of portion of the base station of position, based on the quality of reception of each base station, judge that each base station is the judging part 234F of that communications status in a plurality of communications status of stipulating; With based on this judged result, the state transitions requirement 234G of portion that the base station of response call forwarding state requires communications status to shift.In addition, transceiver 233 includes, and when receiving same grouping respectively by a plurality of base stations, carries out the diversity type acceptance division with respect to the diversity type reception of this grouping.

On the other hand, base station 202 comprises as shown in figure 11: the transceiver 207 that carries out data transmit-receive by antenna for base station 208 with respect to wireless network; Carry out sending control automatically again and giving as the uniqueness number of identifying information etc., comprise sending the data link transmission control that requires control automatically again, control the data link transmission control part 203 of each one in the base station 202 simultaneously each grouping for carrying out aftermentioned; The packet copies portion 206 of duplication packets; The packet distribution of duplicating is arrived the distribution portion 205 of other base stations; Can be used as storage part 204 to the temporary storage aera of the grouped data in the data link transmission control part 203.

Above-mentioned data link transmission control part 203 its functions are made of functional block shown in Figure 12, specifically comprise: for the additional identifying information appendix 203A that is used for the identifying information of specific this grouping of the grouping that sends to travelling carriage; Grouping arrival notice according to the overtime or travelling carriage of timer is deleted first 203B of deletion portion of grouping; Deletion packet numbers notice according to overtime or other base stations of timer delete second 203C of deletion portion that divides into groups; With the requirement of this base station from the travelling carriage of the base station eliminating of packet distribution object, the branch in the storage of deletion local exchange is given the 3rd 203D of deletion portion of the grouping of this travelling carriage according to intention; The packet numbers that should delete is notified the deletion packet notification 203E of portion of other base stations; The distribution control part 203F of distribute packets in newly becoming to the base station of packet distribution object; According to the grouping that send to require again to send grouping again of travelling carriage sending part 203G again; Receiving and storage when sending to the grouping of travelling carriage, the information of this grouping of storage is notified the storage notice 203H of portion of this travelling carriage; When storing a plurality of grouping that sends to travelling carriage, the situation in that the transmission that receives this travelling carriage requires sends to this travelling carriage with grouping, will store this travelling carriage of Notice of Intention of a plurality of groupings simultaneously, with the notice control part 203I that controls; According to the quality of reception of each base station, other each base stations are judged the judging part 203J that whether is distributed to travelling carriage by local exchange distribution predetermined packet of packets; To indicate instruction unit 203R according to the transmit operation of this judged result to other base stations.In addition, the structure of other base stations 212,222 and base station 202 is identical.

Each base station becomes one of four kinds of states shown in Figure 14 A with respect to travelling carriage 231, transfers to each state according to the requirement of travelling carriage 231.The following describes this four kinds of states.

First kind is spatiality, and this state is the base station to the do not divide into groups state received and dispatched of travelling carriage 231.

Second kind is to send status of packets.This state is the base station when network receives grouping, behind the number to the additional uniqueness of this grouping, this grouping can be sent to the state of travelling carriage.Perhaps, this state at a time is to have only the workable state in one of them base station (a plurality of base stations can not be arranged simultaneously under this state).And other base stations become spatiality.

The third is the state of grouping reproducible and transmission.This state is the state that following sequence of operations is carried out in the base station.Here it is, this base station is when receiving grouping from network 1, after giving the number of uniqueness to this grouping, comprise this packet replication of this number, the grouping (" duplication packets " made in following letter) of duplicating is distributed to travelling carriage 231 desired other base stations.Then, this base station receives grouping from travelling carriage 231 and sends when requiring, and this grouping is sent to travelling carriage 231.In addition, this state also is to have only the workable state in one of them base station (a plurality of base stations can not be arranged simultaneously under this state) a certain moment.Other base station then becomes duplication packets transmit status described later or spatiality.

The 4th kind is the state that can send duplication packets.At this state is that the base station receives duplication packets from reproducible and the base station that sends Packet State, and duplication packets can be sent to the state of travelling carriage when travelling carriage 231 receives requiring of transmission grouping in the base station.The state that this state took place in other base stations when transferring to reproducible in certain base station and sending status of packets.

The following describes the operation of the 3rd form of implementation.The operation of base station and travelling carriage 231 under above-mentioned each state at first is described.

(1) can send the operation of base station and travelling carriage under the Packet State.

When set up (1) down, ψ _i=1 i base station becomes with respect to travelling carriage 231 can send Packet State, ψ _j=0 (other base stations of i ≠ j) become spatiality.

(formula 1)

$\underset{i=1}{\overset{N}{\mathrm{\Σ}}}{\mathrm{\ψ}}_i=1---\left(1\right)$

Here

${\mathrm{\ψ}}_i=\left\{\begin{array}{cc}1& (P_{\mathrm{med}\_\max }-P_{\mathrm{med}}\left(i\right)\≤\mathrm{Th},i=1,\·\·\·,N)\\ 0& (P_{\mathrm{med}\_\max }-P_{\mathrm{med}}\left(i\right)>\mathrm{Th},i=1,\·\·\·,N)\end{array}\right.$

P _{med_max}＝max(P _med(1)，…，P _med(N))

In the following formula, the time average received power value of report signal that Pmed (i) expression sends about the i base station or shared pilot signal etc. (ratio of for example short interval received power intermediate value or this time mean receiving power and interference power (below be called " the time average received power is to noise power ratio ") Pmed-max represents by the maximum of the time average received power of the 1st to N base station or the time average received power maximum to noise power ratio.ψ _iExpression with the value of Pmed-max and Pmed (i) with respect to the diadic (1 or 0) of deciding threshold ratio than result of determination.Be with regard to the explanation of the situation of N=3 in this form of implementation, the base station 202,212,222 of Figure 11 is described as first, second, third base station respectively.

When setting up, following formula (1) is arranged in the situation of Figure 15 place A just like travelling carriage 231, be that the report signal or shared pilot signal equal time mean receiving power or received power that a plurality of base stations (being base station 202～212,222 in this form of implementation) of measuring in travelling carriage 231 send has only 1 big situation to noise power ratio etc., for example become ψ _i=1, ψ _i=0, ψ _i=0 situation, base station 202 become with respect to this travelling carriage 231 can send status of packets, and base station 212 and 222 becomes spatiality.

The relevant processing that is grouped into the base station scenario of its state of Danone transmission illustrates with Figure 16.Base station 202 is given the number of uniqueness for this grouping that arrives from network 1 in data link transmission control part 203, and is attached to be used for the reception grouping of travelling carriage is carried out the storages (S301 of Figure 16 and S302) afterwards such as CRC of error detection.After this, data link transmission control part 203 by to packet copies portion 206 former states export to transceiver 207 and control, this grouping is sent to travelling carriage 231 (S303).The grouping of 231 pairs of receptions of travelling carriage is carried out error detection and is handled (S304), when undetected error, informing base station 202 (S305 and S306) is confirmed in the arrival of grouping.When detecting mistake, the transmission again that travelling carriage 231 will divide into groups requires informing base station 202 (S305 and S307).When base station 202 arrives affirmation in travelling carriage 231 notices, promptly delete grouping (S308 and S310) corresponding to the uniqueness number storage.And when travelling carriage 231 notices sent again, base station 202 promptly sent again and the uniqueness number divides into groups accordingly (S308 and S309).

(2) operation of base station and travelling carriage under the spatiality

As previously mentioned, ψ _j=0 the j base station platform that relatively moves becomes spatiality.

Processing when grouping arrives the base station of this spatiality illustrates with Figure 17.Establish base station 212 at this and be spatiality with base station 222.In the base station 212 of spatiality, for making the grouping former state ground that sends to travelling carriage 231 directly be sent to the base station 202 that other base stations maybe can send Packet State, by data link transmission control part 213 control distribution portions 215, for this reason, be grouped in when arriving base station 212, base station 212 is about to other base stations or base station 202 (S311 of Figure 17 and the S312) that grouping sends transmission object to.

Base station 212 and 222 is owing to there being same structure, so operation same as described above is also carried out in grouping when arriving base station 222.

(3) base station under grouping reproducible and transmit status, the duplication packets energy transmit status and the operation of travelling carriage.

When following formula (2) is set up, ψ _iThe base station of one of them of a plurality of base stations of=1 becomes the state that grouping is reproducible and send with respect to travelling carriage 231; ψ _i=1 and non-grouping reproducible and base station transmit status become the state that duplication packets can send.

(formula 2)

$\underset{i=1}{\overset{N}{\mathrm{\Σ}}}{\mathrm{\ψ}}_i\≥2---\left(2\right)$

Here,

${\mathrm{\ψ}}_i=\left\{\begin{array}{cc}1& (P_{\mathrm{med}\_\max }-P_{\mathrm{med}}\left(i\right)\≤\mathrm{Th},i=1,\·\·\·,N)\\ 0& (P_{\mathrm{med}\_\max }-P_{\mathrm{med}}\left(i\right)>\mathrm{Th},i=1,\·\·\·,N)\end{array}\right.$

P _{med_max}＝max(P _med(1)，…，P _med(N))

Wherein the meaning of used symbol and formula (1) is identical.

Be arranged in the situation at B place, Figure 15 place when formula (2) is set up just like travelling carriage 231, when the time average received power value of mensuration or time average received power have a plurality of values big to the ratio of interference power in the travelling carriage 231, for example become ψ in this form of implementation ₁=1, ψ ₂=1 and ψ ₃=0 situation becomes the reproducible and transmit status of grouping one of in the base station 202 and 212.Above-mentioned one of them base station may be base station or the time average received power value or the time average received power base station big to noise power ratio that can send Packet State before shifting.In this form of implementation, the base station is made as the reproducible and transmit status of grouping, but being made as the duplication packets transmit status, base station 212 goes on to say.

The processing that grouping arrives base station 202 situations of divide into groups reproducible and transmit status illustrates with Figure 18.Base station 202 is for the additional uniqueness number of this grouping that arrives from network 1, and additional with after the CRC that is used for the grouping that travelling carriage receives is carried out error detection etc., store this packet replication (S321 of Figure 18 and S322) that this grouping comprises this number simultaneously.But base station 202 is distributed to the base station 212 (S323) of duplication packets transmit status, the grouping (S324) of base station 212 storage distribution with duplication packets then.Base station 202 is again storing the grouping event notice travelling carriage 321 (S325b) that sends to travelling carriage 321.

Travelling carriage 231, as previously mentioned, for make mean receiving power value into or time average received power to interference power become maximum base station be in grouping complicated with send possible state, claimed condition shifts.Thus, the base station that travelling carriage 231 is carried out new packet notification can be 1.This is to notify owing to becoming the highest base station from the time average quality of reception, so can realize.At this moment can reduce the surplus power that is used for this notice, can suppress to disturb.

But when this interference not too is a problem, also can be shown in the S325b and S325a of Figure 18, the base station that employing is divided into groups by reception (packet copies and the base station that sends the possibility state, or the base station of duplication packets transmission possibility state) notifies the method for travelling carriage 231 respectively.

The travelling carriage that receives this notice (is base station 202 and 212 two platforms) from a plurality of base stations 231 this moments this form of implementation, the received power of reporting signal, shared pilot signal etc. that selection is sent or instantaneous received power become maximum base station (S326) to noise power ratio, require the base station of this selection that grouping is sent to travelling carriage 231 (S327).The concrete grammar of this requirement can be that the base station is required the number of specific this base station of energy and the number of the grouping of being notified.

The above-mentioned requirements method can adopt the method that is directly required selected base station by upstream circuitry, or by base station network with non-selected to this requirement that the base station received notify the method for selected base station.At this, because travelling carriage is different to upstream circuitry and downstream circuitry with the instantaneous quality of reception between each base station, even if the quality of reception of downgoing line is the highest between selected base station and travelling carriage, but that the quality of reception of upstream circuitry can become between other base stations and travelling carriage is the highest.

Then, the base station (in this form of implementation for base station 202) that receives this requirement sends to travelling carriage 231 with this grouping.The base station 202 of this moment also can be with a plurality of Notice of Intention travelling carriages 231 that send to the grouping of travelling carriage 231 of storage.Thus, for the later grouping of storage, the base station there is no need to reinform.

(S329) handled in travelling carriage 231 pairs of groupings that receive carrying out error detection, when not detecting mistake, with the arrival of grouping confirm notice packet duplicate and send may state base station 202 (S330 and S331), above-mentioned notice can directly be undertaken in base station 202 or by base station 212.When detecting mistake, travelling carriage 231 is selected instantaneous or the time averaging quality of reception becomes the highest base station (S332) in this constantly, and the transmission again of grouping is required to notify this base station.

Collect and arrive base station 202 deletions of confirming and the corresponding stored packet of uniqueness number (S334 and S337).But the base station 212 (S336) of the number notifying duplication packets transmit status that will divide into groups in 202 of base stations.The base station that receives this notice is notified the duplication packets (S338) of deletion storage in view of the above.

On the other hand, base station 202 receives and sends when requiring again, and sends the grouping (S333, S334, S335) corresponding with the uniqueness number again.

As mentioned above owing to do not need outside the base station, to establish the circuit control desk that carries out packet distribution in addition, but in each base station stores packets.With one or more base station grouping is sent to travelling carriage, so just can reduce the traffic in the network, shorten the transmission packets time delay, thereby can increase circulation, improve the overall performance of system.

Among Figure 18 relevant from base station 202 to the base station notice of deletion duplication packets 212 the S336, can adopt three kinds of methods shown in Figure 19 A～Figure 19 C.

First method is shown in Figure 19 A, and base station 202 is by receiving when arrive confirming from travelling carriage in S331, and informing base station 212 should be deleted the uniqueness packet numbers (A1) of grouping.Hereat, delete this grouping of base station 202 stored simultaneously with notice.

Second method be base station 202 in carry out the notice of up-to-date packet numbers in fixing time.Specifically, base station 202 by among the S331 from travelling carriage receive arrive confirm after, the processing of beginning Figure 19 B, starting are provided with predetermined deletion deletion timer (B1) at interval, storage and the corresponding packet numbers (B2) of above-mentioned arrival affirmation.Also can delete this grouping of base station 202 stored hereat simultaneously.Receiving new arrival affirmation back (B3 judges certainly), storage is confirmed corresponding packet number number (B2) with this arrival.Arrive overtime back (B4 judges certainly) at the deletion timer, notify this up-to-date packet numbers in stored packet number constantly, the arrival affirmation that receives in also promptly fixing time by the institute of timing ga(u)ge timing the up-to-date packet numbers in the grouping of correspondence.

In the third method, base station 202 is notified by the deletion (for example every 10 groupings of deleting) of specific cluster.Specifically, base station 202 by in S331 from travelling carriage receive arrive to confirm after, the processing of beginning Figure 19 C, after resetting to counter n=1 (C1), the storage packet numbers (C2) corresponding with above-mentioned arrival affirmation also can be stored this grouping of deleting base station 202 stored simultaneously (among the C5 too) therewith.Then, (C3 judges certainly) makes counter n increase progressively 1 (C4) when receiving new arrival affirmation, and storage arrives affirmation corresponding packet numbers (C5) therewith.Arrive for 10 the moment at calculator n, promptly in receive 10 branch components the time be engraved on C6 judgements of answering affirmatively, notify up-to-date packet numbers (C7) in this moment stored packet number.

In above-mentioned first method, increase owing to the frequency of notifying causes amount of information, but the advantage of carrying out buffer management is easily arranged.It is miscellaneous that second method generally causes buffer management owing to frequency of notification is low, but the few advantage of the traffic that causes because of notice is arranged.The third method amount of information and cache management two aspects generally speaking all belongs to second stream, is in the centre position of first and second kind method.

This form of implementation is by suitably adopting above-mentioned three kinds of methods, well two aspects of balancedly control information amount and buffer management.

Among Figure 18, the trigger as stored packet in the deletion base station 202,212 also can adopt timer.This example is described as follows according to Figure 20.As shown in figure 20, base station 202 awards this grouping of being arrived by network 1 with the uniqueness number, after having added the CRC that is used for the grouping error detection that travelling carriage receives etc., in this grouping of storage, (S321 of Figure 20 and S323X) duplicated in this grouping that includes this number.As triggering the input of grouping this moment to base station 202, the deletion timer that is used for relevant stored packet deletion timing constantly can be started in base station 202.In addition, the deletion timer is started in base station 202 grouping that also can hand begins to send object constantly.

Base station 202 is distributed to the base station 212 (S323) that duplication packets sends the possibility state with duplication packets then.Base station 212 is in the grouping while of storage distribution, and the deletion timer that starting is constantly carried out timing to relevant stored packet deletion is to trigger the input (S324X) of dividing into groups to base station 212.Base station 202 sends to storage the situation notice travelling carriage 231 (S325b) of the grouping of travelling carriage 231 again.

As previously mentioned, travelling carriage 231 is to make time average received power value or time average received power become packet copies and send the possibility state for maximum base station noise power ratio, need ask state transitions, can make the base station of carrying out new packet notification to travelling carriage thus is one.Because this is to notify from the highest base station of the time average quality of reception, thus may realize that 0 can reduce the surplus power that is used for this notice in this case, so can suppress to disturb.

But when above-mentioned interference not too is a problem, shown in the S325b and S325a of Figure 18, also can adopts by receiving the base station (base station that the base station of packet copies and transmission possibility state or duplication packets send the possibility state) of dividing into groups and notify the method for travelling carriage 231 respectively.

Receive the travelling carriage 231 of notice, select from a plurality of base stations the signal of reporting of (here for base station 202 with 212 two) transmission this moment, the instantaneous received power of signals such as shared pilot signal or instantaneous received power become maximum base station (S326) to noise power ratio, and requirement sends to this base station (327) with this grouping.The concrete grammar of this requirement can be that the base station is required the number of base stations of specific this base station of energy and the method for the number of the grouping of being notified.

This method that requires also can adopt by the method for upstream circuitry to the direct requirement in selected base station, or notifies the method for selected base station by this requirement that the network between the base station receives non-selected base station.At this, because travelling carriage is different with the instantaneous quality of reception between each base station on upstream circuitry and downstream circuitry, even thereby the quality of reception of downstream circuitry is the highest between base station of selecting and travelling carriage, but that the quality of reception of uplink then can become between other base stations and travelling carriage is the highest.

Then, the base station (being base station 202 at this) that receives this requirement sends to travelling carriage 231 (S328) at this moment with this grouping, and the grouping that sends to 231 also can be done the Notice of Intention travelling carriage 231 of a plurality of storages in base station 202.

Travelling carriage 231 carries out error detection for the grouping that receives and handles (S329), when not detecting mistake, the arrival affirmation notice packet of grouping is duplicated and sent the base station 202 (S330 and S331) of possibility state.This notice can directly be undertaken in base station 202 or by base station 212.When detecting mistake, travelling carriage 231 selects instantaneous at this moment or the time average quality of reception becomes the highest base station (S332), with respect to the requirement of transmission again (S333) of this base station notice packet.

Base station 202 sends when requiring being received by travelling carriage 231 more then, sends and the corresponding grouping of uniqueness number (S333, S334, S335) again.

In the example of Figure 20, in the base station 202, the deletion timer that begins at S322X becomes the overtime moment, i.e. deletion and the corresponding stored packet of this timer (S336 and S337).In addition, the moment of the deletion timer expiry that base station 212 also begins at S324X, the grouping (S336 and S338) of deletion and this timer corresponding stored.

According to the processing of Figure 20, owing to needn't delete notice (S336 of Figure 18), just can suppress increases because of these control groupings cause the amount of information of network between the base station.In addition, confirm (S331 of Figure 20), also might reduce amount of information owing to not necessarily need the network of travelling carriage to arrive.Have again, among Figure 20 the timeout value of deletion timer be consider with respect to this grouping send the time require no show again the time set.

This form of implementation is that the base station of dividing into groups with respect to transmission is that a situation (Figure 18,20) illustrates, but receive the same grouping that is sent by a plurality of base stations by diversity type and can improve under the situation of the quality of reception under not too debatable situations such as interference or in travelling carriage, base station 202 and 212 also can send same grouping respectively.Specify this example with Figure 21 below.

The additional uniqueness number of this grouping that arrives from network is given in base station 202, after the additional CRC that is used for grouping error detection that travelling carriage is received etc., in this grouping of storage simultaneously, comprises this packet replication (S341 of Figure 21 and S342) of this number.Base station 202 is distributed to the base station 212 (S343) that duplication packets sends the possibility state with duplication packets then, and the grouping (S344) that base station 212 storages are distributed.

Base station 202 and 212 will have stored packet notice travelling carriage (S345) respectively subsequently.Travelling carriage can be wiped the notice of S345 receiving under the status of packets.After this, base station 202 and 212 sends to stored packet travelling carriage (S346) respectively.

(S347) handled in travelling carriage 231 pairs of groupings of receiving carrying out error detection.At this moment also can carry out diversity type for same group that is sent by a plurality of base stations receives.Can adopt as this deversity scheme: first method that the same position of the same grouping that receives is synthesized every former state ground; To the power of the power that receives or reception to interfering after the power ratio weighting to every synthetic second method; Select not detect the third method of amiss grouping the grouping after error detection.When undetected error, travelling carriage 231 just will divide into groups to arrive the base station 202 (S348 and S349) that the possibility state was duplicated and sent to the affirmation notice packet.

Collect that just delete the base station of arrive confirming 202 and the grouping (S351 and S355) of uniqueness number corresponding stored.The number notifying duplication packets that also will divide into groups in while base station 202 sends the base station 212 (S354) of possibility state.The duplication packets (S356) of being stored is deleted according to this notice in the base station 212 that receives this notice.By adopting the method for the sort of timer among aforementioned Figure 20, can economize notice except that S354.

On the other hand, when S348 detected mistake, travelling carriage sent requirement (S350) again with respect to base station 202 or base station 212 notice packet.Base station 202 sends when requiring receiving again, or this is sent grouping again is distributed to base station 212 again or notifies this to send packet numbers (S352) again.Base station 202 and 212 sends the grouping (S353) that requires respectively more then.

In the time of near travelling carriage among Figure 15 231 moves to place C, just become and further to obtain big time average received power value and time average received power, for example becoming the state of noise power ratio ₁=1, ₂=1, ₃The packet replication form that=1 situation, base station 202 similarly will arrive base station 202 is distributed to base station 212 and 222.

The following describes and transfer to the operation that is different from the base station in the variety of event and travelling carriage under the state shown in Figure 14 B.

(4) explanation of incident A

In travelling carriage, by the state that the state transitions of setting up from following formula (1) is set up to formula (2), the base station ( of transmit status but 231 pairs of travelling carriages divide into groups ₁=1 i base station) requirement is transferred to and is duplicated and send the possibility state, and for newly becoming _iFree time of=1 state base station transfer replication grouping send may state.The above is incident A (referring to Figure 14 A, Figure 14 B).

Will from grouping send may state transitions to packet copies with send may state the base station be made as base station 202, but will be made as base station 212 from the base station that spatiality is transferred to the duplication packets transmit status simultaneously, and be specifically described with Fig. 2.

When setting up from formula (1) when becoming the state that formula (2) sets up, travelling carriage 231 will be transferred to grouping and send may state with respect to base station 202, simultaneously with the specific that newly becomes _iThe number notifying base station 202 of=1 base station (S361 of Figure 22 and S362).

But the 202 pairs of base stations, base station 212 that receive this notice require to transfer to duplication packets transmit status (S363), and in the grouping that sends to travelling carriage 231 (S364) of duplicating storage at this moment, duplication packets are distributed to base station 212 (S366).Base station 202 is transferred to packet copies then and is sent possibility state (S367).

Base station 212 requires to transfer to duplication packets transmission possibility state (S365) according to the transfer of base station 202.Base station 212 is the duplication packets of storage distribution (S368) again.Like this, even base station 212 is required to send again, also can send again at once.

The grouping of arrival base station 202 is then duplicated by base station 202 as previously mentioned and is distributed to base station 212 after this.

(5) explanation of incident B

In incident B (with reference to figure 14A, 14B), for travelling carriage, by the state that the state transitions of setting up from formula (2) is set up to formula (1), the base station that sends the possibility state in copy group becomes _i=0 and have only packet copies with send may state the base station become _i=1 (other base stations, _i=0) time, travelling carriage 231 requires the base station of packet copies and transmission possibility state to transfer to grouping and sends the possibility state, and requires the base station of duplication packets transmission possibility state to transfer to spatiality (referring to Figure 14 A, 14B).

Now base station 202 is made as from packet copies with send may state transitions to grouping send may state the base station, and with base station 212 be made as from duplication packets send may state transitions to the base station of spatiality, specify by Figure 13 again.

Travelling carriage 231 when the state of formula (2) establishment becomes the state of formula (1) establishment, but will be transferred to the grouping transmit status simultaneously with specific with respect to base station 202 _i=0 promptly becomes the number of base stations informing base station 202 (S371 and S372 among Figure 23) of the base station 212 of spatiality.The method to base station 212 requirements also can be adopted owing to handle the grouping that sends to this travelling carriage in these two base stations, at this moment, can require transfer to spatiality to the base station, and notice is transferred to the number (base station 202) that grouping sends the base station of possibility state simultaneously.This form of implementation goes on to say as preceding a kind of method.

The 202 pairs of base stations, base station 212 that receive this notice require to transfer to spatiality (S373), transfer to grouping simultaneously and send possibility state (S374).

This grouping (S375) of storage is deleted in base station 212 when transferring to spatiality.Whether the 202 pairs of groupings that arrive later in base station or not, and is not distributed to other base stations yet.

(6) explanation of incident C

In incident C, for travelling carriage, the state by the state transitions of being set up by formula (2) is set up to formula (1) becomes in packet copies and the base station that sends the possibility state _i=0 and duplication packets send may state the base station become _i=1 o'clock, the base station of 231 pairs of packet copies of travelling carriage and transmission possibility state required to transfer to spatiality, the base station requirement of duplication packets transmission possibility state is transferred to divided into groups to send the possibility state.

Now base station 202 is made as from packet copies and the base station of transmission possibility state transitions, base station 212 is made as from duplication packets sends the base station of possibility state transitions, and specify with Figure 24 to grouping transmission possibility state to spatiality.

Travelling carriage 231, when the state of formula (2) establishment becomes the state of formula (1) establishment, will move to spatiality simultaneously with the specific number of base stations informing base station 202 (S381 and S382 among Figure 24) of transferring to the base station 212 of grouping transmission possibility state with respect to base station 202.

The base station 202 that receives this notice requires base station 212 to transfer to grouping and sends the possibility state.Then, change owing to give the base station of uniqueness number, base station 202 first form of implementation is for another example offered some clarification on, and notifies the number and the last look (S383a) of giving the uniqueness number of grouping of current stored packet (not obtaining arriving the grouping of affirmation).When present event took place, because also stores packets of base station 212, by inquiry base station 212, also can adopt and send what store in two base stations only was the method (S383b) of different grouping.Therefore can carry out any method of S383a or S383b.

Spatiality is transferred in base station 202 then, deletion stored packet (S384).When base station 202 receives the grouping that sends to travelling carriage 231 in spatiality, described in " operation of base station and travelling carriage under (2) spatiality ", base station 212 will be controlled to former state ground and transmit as described above.

On the other hand, base station 212 is transferred to grouping and sends possibility state (S385) according to the transfer requirement of base station 202.

(7) explanation of incident D

In incident D, for travelling carriage, to the state of formula (2) establishment the time, making newly becomes by the state transitions set up from formula (1) _iThe time average received power value or the time average received power of=1 base station become maximum etc. to noise power ratio, and travelling carriage 231 requires grouping to send the base station ( of possibility state _i=1 i base station) transfers to duplication packets and send the possibility state, require to set up again simultaneously _iThe base station of=1 spatiality is transferred to packet copies and is sent the possibility state.

If base station 202 is may state transitions send the base station of possibility state to duplication packets from the transmission of dividing into groups, is to transfer to the base station 212 of duplicating and send the possibility state and establish base station 212, and specifies with Figure 25 from spatiality.

Travelling carriage 231, when the state of formula (1) establishment becomes the state of formula (2) establishment, to transfer to duplication packets for base station 202 and send the possibility state simultaneously with the specific number of base stations of newly transferring to packet copies and sending the base station of possibility state, informing base station 202 (S391 of Figure 25 and S392).

The 202 pairs of base stations, base station 212 that receive this notice require to transfer to duplication packets and duplicate and send the possibility state.Then, owing to give the base station change of uniqueness number, base station 202 first form of implementation for another example clearly shows, the number of notifying base station 202 stored packet (not obtaining arriving the grouping of affirmation) now and the last look (S393) of giving the uniqueness number of grouping, this is to shift the event because the spatiality of the grouping that sends to travelling carriage never store in base station 212.Base station 202 is transferred to duplication packets and is sent possibility state (S394) then.

Base station 212 is transferred to packet copies and is sent the possibility state, this grouping (S395) that the storage base station sends according to above-mentioned notice.Then, the grouping that arrives new base station 212 is duplicated in base station 212, controls this duplication packets and is distributed to base station 202.

(8) explanation of incident E

In incident E for travelling carriage, formula (2) is set up, by being altered to time average received power value or time average received power interference power is become maximum base station etc., travelling carriage 231 is transferred to duplication packets transmission possibility state for the base station requirement of packet copies and transmission possibility state, the base station requirement of duplication packets transmission possibility state is transferred to duplicated and send the possibility state simultaneously.

With base station 202 be made as from packet copies with send may state transitions to grouping send may state the base station, with base station 212 be made as from duplication packets send may state transitions to packet copies with send may state the base station.

Suppose that time average received power value or time average received power become maximum base station to noise power ratio and 202 become base station 212 from the base station, but 231 of travelling carriages require to be transferred to the duplication packets transmit status to base station 202, require base station 212 to shift packet copies simultaneously and send may state (S401 of Figure 26 and S402).

Duplication packets transmission possibility state (S404) is transferred in the base station 202 that receives this notice.Then, owing to give the base station change of uniqueness number,, notify now the number of stored packet (not obtaining arriving the grouping of affirmation) and the last look of giving the uniqueness number of grouping so clearly explain in implementing base station 202 as first.Owing to base station 212 also stores packets, inquiry base station 212 is passed through in base station 202, even can adopt the method (S403) that only sends the different grouping of storing in two base stations again.Though base station 202 stored packet are in statu quo stored, utilizing overtime deleting in the method for falling, then be with respect to whole grouping starting deletion timers of being stored this moment.

Base station 212 is transferred to packet copies and is sent possibility state (S405) according to above-mentioned notice.Then, the grouping of new arrival base station 212 is duplicated in base station 212, controls the distribution of this duplication packets to base station 202.

According to above-mentioned the 3rd form of implementation, owing to the base station is not established the circuit control desk that carries out packet distribution in addition in the base station stores packets, by one one-tenth a plurality of base station grouping is sent to travelling carriage, so can reduce the traffic in the network, shorten the transmission packets time delay and increase circulation and improve the overall performance of system.

The 4th form of implementation

Below with Figure 27 the relevant operation that sends control of shifting is described, the structure of mobile communication system is identical with the 3rd form of implementation, gets structure shown in Figure 11 equally.

Travelling carriage is by receiving the report signal that a plurality of base stations send, and shared pilot signal etc. are asked the time average quality of reception (for example is loss at this) between travelling carriage and a plurality of base station.Then, travelling carriage is with the additional packet copies and the base station that sends the possibility state that the uniqueness number is arranged of the time average quality of reception notice of trying to achieve.The base station of this packet copies and transmission possibility state is according to a plurality of time average qualities of reception of being notified, and each indication that sends the base station of possibility state with respect to duplication packets sends with the unit of being grouped into.Each base station is indicated in view of the above and is sent new grouping, and is that the desired base station that sends again of mobile attitude just sends grouping again when sending again.

By the transmission indication that the additional base station that the uniqueness number arranged is done, specifically carry out by the following stated process by the grouping unit.The additional a plurality of time averaging losses of base station applies that the uniqueness number is arranged, Si (j) asks this S according to following formula (3) _i(j), with respect to the grouping of input local exchange, press S _i(j) little base station additional in proper order " identifier of indication transmission ".As this S _iWhen (j) identical, additional have the base station of uniqueness number to the littler base station of time average loss additional " identifier that indication sends ".Loss for following formula (3), the index of showing the bright quality of reception can also be the useful wave signal to noise power ratio (CZR), received signal to noise power ratio (SZR), the useful wave signal is to noise power ratio (CNR), and received signal is to any one of noise power ratio (SNR)

[formula 3]

$S_i\left(j\right)=\frac{L_i}{\underset{i=1}{\overset{N}{\mathrm{\Σ}}}{L}_i}\·j---\left(3\right)$

Wherein i is a number of base stations, and j represents that loss Li upgrades the packet count of back input.

Illustrate below with respect to travelling carriage and can send under three base stations (i=1～3) existence of grouping, the operation after when the time average loss is upgraded.With the corresponding packet copies of i=1 with send may state the base station, and the corresponding duplication packets with 3 of i=2 sends the base station of possibility state, establishing its each time average loss is following situation.

Loss between first base station (i=1) and travelling carriage: L ₁=1

Loss between second base station (i=2) and travelling carriage: L ₂=2

Loss between the 3rd base station (i=3) and travelling carriage: L ₃=3

If first after the time average loss is upgraded is grouped into the K grouping.At this moment, because each Si (j) is zero entirely, the additional additional identifier that sends from first base station of minimum transfer loss that is useful in base station that the uniqueness number is arranged.

This identifier can be 1 long.In other words, making identifier is that transmit operation is carried out in the grouping of " 1 ", and making identifier is that the grouping of " 0 " does not send and the still operation of storage, so just can be indicated by 1 long identifier, and each Si (j) that adds after this identifier is worth as shown below

[formula 4]

S ₁(1)＝1/6 S ₂(0)＝0 S ₃(0)＝0 (4)

Import (K+1) number grouping then.This moment is because S ₂(0) and S ₃(0) be zero, additional have the base station of uniqueness number to add the identifier that has in order to from littler second base station transmission of loss.Each Si (j) of this moment as shown below

[formula 5]

S ₁(1)＝1/6 S ₂(1)＝2/6 S ₃(0)＝0 (5)

When (K+2) grouping input, owing to be S ₃(0) get zero minimum value, thus the additional additional identifier in base station that the uniqueness number is arranged in order to send from the 3rd base station, value such as following the showing of each Si this moment (j)

[formula 6]

S ₁(1)＝1/6 S ₂(1)＝2/6 S ₃(1)＝3/6 (6)

Like this, the additional base station that the uniqueness number is arranged when the distribution duplication packets, according to aforementioned formula (3), makes that the sent identifier corresponding to the grouping of certain base station becomes effectively in the grouping of duplicating input.From (K+3) to the result of calculation of the grouping pairing formula (3) of (K+10) and the state of identifier be shown in Figure 27 thereafter.

As shown in figure 27, thereafter when (K+3) grouping input, owing to press the above, S ₁(1) is minimum value, the additional just additional identifier in base station that the uniqueness number is arranged to be used for sending from first base station.

When (K+4) grouping input, because S ₁(2) and S ₂(1) all equals " 2/6 ", the additional additional identifier in base station that the uniqueness number is arranged to send in order to first base from littler loss.

When (K+5) grouping input, because S ₂(1) be minimum value, additional have the base station of uniqueness number just additional with the identifier in order to send from second base station.

When (K+6) grouping input, because S ₁(3) and S ₃(1) all equals " 3/6 ".Additional have the base station of uniqueness number just additional with the identifier in order to send from the first littler base of loss.

When (K+7) grouping input, because S ₃(1) be minimum value, additional have the base station of uniqueness number just additional with the identifier in order to send from the 3rd base station.

When (K+8) grouping input, because S ₁(4) and S ₂(2) all equal " 4/6 ".Additional have the base station of uniqueness number just additional with the identifier in order to send from the first littler base of loss.

When (K+9) grouping input, because S ₂(2) be minimum value, additional have the base station of uniqueness number just additional with the identifier in order to send from the second littler base station of loss.

When (K+10) grouping input, because S ₁(5) be minimum value, additional have the base station of uniqueness number just additional with the identifier in order to send from the first littler base station of loss.

Then, each base station 2 is that 1 grouping sends to travelling carriage with identifier.

When time average transmission loss was upgraded, the additional base station that the uniqueness number arranged resetted and removes Si (j) back and continue to carry out above-mentioned processing by getting j=0.

When travelling carriage required to send again, this moment, the mobile station in selecting loss was minimum base station, required to send from selected base station again.Why can carry out the transmission again of grouping in this wise from any base station of mobile station in selecting, be because each base station stored has the grouping of duplicating.

By above-described structure and operation, owing to can not carry out reporting the step that grouping arrives from travelling carriage, each base station can be carried out definite grouping according to the time average loss and be sent, sending grouping simultaneously again can send immediately from the base station of loss minimum this moment, thereby can reduce interference, and can promptly send again other cells or other travelling carriages.

[the 5th form of implementation]

Below with Figure 28-31 explanation the 5th form of implementation of the present invention.As shown in figure 28, identical in the mobile communication system of the 5th form of implementation and aforementioned first form of implementation comprises travelling carriage 1131 and a plurality of base stations 1102,1112, and each base station can be passed through network 1 and intercom mutually.

Wherein the structure of travelling carriage 1131 is identical with the travelling carriage 131 of first form of implementation.Structure as for base station 1102 then is the packet copies portion 1107 that the base station 102 of first form of implementation has been added duplication packets, has replaced the transport unit 105 of Fig. 7 simultaneously and is provided with the transmission/distribution portion 1105 that divides into groups to transmit in the base station of the distribution of duplication packets and other data link transmission control is carried out in other base stations.In addition, also have with not existing together of first form of implementation, data link transmission control part 1103 be used for and travelling carriage between divide into groups to receive and dispatch comprise send again automatically require control link transmission control simultaneously, be not with the data link control information transmission, but the control base station identification information that will be used to discern the base station of carrying out data link transmission control send to travelling carriage.There is same structure 1112 of base stations with base station 1102.

The operation of this 5th form of implementation is described again.It is good and radio communication quality that establish between this travelling carriage and the base station 1112 is bad to establish when initial radio communication quality between the travelling carriage 1131 and base station 1102 at this, so the initial condition that can only communicate by letter with base station 1102 of travelling carriage 1131 at this moment.Operating basis Figure 29 explanation of this initial condition.

In the base station 1102, in the grouping input link transmission control part 1103 that the S41 of Figure 29 imports from network 1, the latter comprises automatically the control of transmission requirement again and gives respectively grouping with identifying information (S42) in this.The identifying information that this form of implementation is used comprises and is used for discerning the information and the control base station identification information that is used for discerning the control base station (promptly carrying out the base station that identifying information is given) of carrying out this data link transmission control that the input data link is transmitted the grouping of control part 1103.Data link transmission control part 1103 is to dividing into groups additional being used for after the CRC of its error detection etc., this grouping (promptly having given the grouping of identifying information) is stored in that (S42) exports simultaneously in the storage part 104, transceiver 5 sends signal by antenna for base station 6 with this and sends to travelling carriage 1131 after this grouping being modulated to the transmission signal.

Travelling carriage 1131 transceiver 33 will receive from the signal of mobile portable antennas 32 with demodulation after, grouping input data link transmission control part 1034 with this demodulation gained, the latter carries out error detection (S44) with the CRC that adds to the grouping of input comprising the link transmission control while of sending requirement control automatically again.When detecting grouping when mistake is arranged, the packet numbers that data link transmission control part 1034 sends according to the identifying information identification requirement of giving again and the base station 1102 of control base station send to base station 1102 (S45) based on this recognition result with the NACK signal; The transmission again that to divide into groups again requires notification data link transmission control part 1103.Can adopt direct notice as this Notification Method, the method for base station 1102 and the method for notifying through other base station intermediaries.Then, data link transmission control part 1103 judgement ack signals are not imported (S47) and are sent this grouping (S43) of being stored again.

On the other hand, when dividing into groups zero defect in the error detection, then according to the base station 1102 of the identifying information identification control base station of being given, according to this recognition result ack signal is sent to base station 1102 (S46), then the arrival of this grouping is confirmed to send to data link transmission control part 1103, the latter judges ack signal input back (S47).The stored packet (S48) that deletion is used for sending again.

Subsequently, travelling carriage 1131 is by moving, become the situation of same degree with the communication quality of adjacent base station 1102 for keeping the communication quality of the base station 1102 of communicating by letter to worsen so far with travelling carriage 1131, form of implementation is described as described above, travelling carriage 1131 requires base station 1,102 1102 to send same groupings (S49) with base station 1112 from the base station, according to this requirement, the data link transmission control part 1103 of base station 1102, when having grouping to be input to base station 1102 after this moment (S50), then this grouping is carried out the processing (S51) identical with above-mentioned S42 and sent to travelling carriage 1131 (S52) by transceiver 5, meanwhile, duplicate this grouping (S53) by packet copies portion 1107, again transmission/distribution portion 1105 is passed through in the grouping of being duplicated, be distributed to the data link transmission control part 1113 (S54) of base station 1112.

Because data link transmission control part 1113 is 1103 pairs of distribute packets of data-driven link transmission control part to be exported to transceiver 15 same as before and controls, so can the 1102 and 1112 transmission same groupings (S52) from the base station.

This moment is to data link transmission control part 1113 the grouping whether output of former state ground arrives and whether carried out comprising the aforementioned judgement that sends the data link transmission control that requires control etc. automatically again, can detect and whether give identifying information to the grouping of arrival.Specifically, when data link transmission control part 1113 detects and given identifying information to the grouping of input, export to the grouping former state that just will arrive transceiver 15; When its grouping that detects input then comprises the data link transmission control that sends control automatically again when not giving identifying information.

Travelling carriage 1131 docks the contracture group as hereinbefore to carry out error detection (S55) and NACK or ACK is exported to base station 1102 (S56 and S57).Base station 1102 is same as described above, judges ACK input not (S58), if NACK then sends grouping (S52) again, if ACK then deletes stored packet (S59).

It is good with the communication quality of base station 1112 with the communication quality deterioration of base station 1102 that next establishes travelling carriage 1131.Sending operation in the grouping situation by a plurality of base stations to travelling carriage according to Figure 30 explanation under the transfering state below.

The base station (S61 of Figure 30) that the control of data link transmission is carried out in the data link transmission control part 1103 notice requests change of 1131 pairs of base stations 1102 of travelling carriage.This notice also can adopt the method for direct informing base station 1102 or the method for notifying through other base station intermediaries as hereinbefore.

Receive the data link transmission control part 1103 of this base station change requirement, transmit control (S62) with respect to the data link of travelling carriage 1131 by the base station 1112 requirement beginnings of transmission/distribution portion 1105 pairs of changes object.Import the grouping that data link is transmitted control part 1103 after being set in this moment again, send base station 1112 (S63) to former state, so (S63) just sends base station (S64) to by transmission/distribution portion 1105 to former state during grouping input data link transmission control part 1103 by transmission/distribution portion 1105.

The data link transmission control part 1103 in change source will be only for transmitting control for the data link that sends stored packet again, by proceeding to the same operation former state from S52 to S59 among Figure 29.In other words, described being grouped in arrives when confirming to finish, and transmits control part 1103 by the data link in change source and carries out the transmission again of former state.This moment, 1102 and 1112 sent to travelling carriage 1131 with same grouping from the base station also as hereinbefore.

On the other hand, the data link transmission control part 1113 of the base station 1112 of change object comprises automatically transmission again and requires control for the grouping of not giving identifying information that arrives (according to the grouping of S64 or S65 arrival).At this moment, data link transmission control part 1113 is when giving identifying information to each grouping, after the CRC of the grouping error detection that will be used to receive etc. is additional to grouping, this grouping (promptly having given the grouping of identifying information) is stored in storage part 114 (S66), exports to transceiver 15 simultaneously.Transceiver 15 sends signal through antenna for base station 16 with this and sends to travelling carriage 1131 after this grouping is modulated to the transmission signal.

Given the grouping of above-mentioned identifying information and duplicated (S68) by the portion of duplicating 1117, this duplication packets is distributed to the data link transmission control part 1103 (S69) of base station 1102 by transmission/distribution portion 1115.This data link transmission control part 1003 is owing to give grouping with identifying information, also because this grouping is exported to transceiver 5 through control or former state ground, and just can be by base station 1102 and 1112 transmission same groupings (S67).

Travelling carriage 1131 carries out error detection (S70) to grouping as hereinbefore, and base station 1112 (S71 and S72) is exported to NACK or ACK in identification base station 1112.Base station 1112 judges whether to have imported ACK (S73), if NACK then sends grouping (S67) again; If ACK then deletes stored packet (S74).

Below, same as described above, according to Figure 31 illustrate that the communication quality of travelling carriage 1131 and base station 1102 worsens and with the communication quality of base station 1112 be under the good transfering state, by the operation of single base station when travelling carriage sends grouping.

Form of implementation is illustrated as described above, and the data link transmission control part 1113 of base station 1112 is by receiving the requirement (S81 of Figure 31) that only 1112 reception groupings send from the base station from travelling carriage 1131, and packet replication is not carried out in control.Therefore, when grouping input base station 1102 is arranged after at this moment (S82), this grouping just sends base station 1112 (S83) to, carries out aforesaid processing (S84-S90) by base station 1112.

Specifically, the data link of base station 1112 transmission control part 1113 give each grouping with identifying information in, the CRC etc. that will be used for the grouping that receives is done error detection appends to this grouping (promptly having given the grouping of identifying information), exports to transceiver 15 and will carry out this packet memory after additional to storage part 114 (S84)-simultaneously.Transceiver 15 sends to travelling carriage 1131 (S85) with it through antenna for base station 16 after this grouping is modulated to the transmission signal.

Travelling carriage 1131 docks the contracture group as hereinbefore and carries out error detection (S86), and base station 1112 (S87 and S88) is exported to NACK or ACK in identification base station 1112.Base station 1112 judges whether to have imported ACK (S89), if NACK then sends grouping (S85) again, if ACK then deletes stored packet (S90).

As mentioned above, the control base station of carrying out data link transmission control is not with the data link control information transmission but the control base station identification information that will be used to discern this control base station sends to travelling carriage, thereby travelling carriage can be discerned this control base station according to the control base station identification information, travelling carriage then can and the control desk base between them, comprise and automatically send the data link transmission that requires control again and control (for example with the connection request of new base station etc.).Like this, travelling carriage and base station use the control base station identification information to carry out data link transmission control by replacing the link transmission control information, just can reduce the data volume of the control information of transmitting-receiving, reduce Internet traffic.

In addition, the identifying information of this form of implementation often is as the information of identification base station and the result that information constituted of identification grouping, but the present invention can: only comprised under the state that sends the data link transmission control that requires control automatically again by the data link transmission control part of a base station, only the information by the identification grouping constitutes identifying information; And comprise under the state that sends the data link transmission control that requires control automatically again at the data link transmission control part by two above base stations, just the information by the identification grouping constitutes identifying information with the information of discerning the base station, so just can increase the figure place of identifying information not manyly.

The 6th form of implementation

The following describes the 6th form of implementation of the present invention, this the 6th form of implementation will be with respect to only transmitting first method of data link control information transmission from a base station to other base stations, and transmit data link control information transmission and grouping simultaneously or transmit the such order explanation of second method of the grouping of additional identification information.In addition, though this form of implementation is to describe with regard to the situation of using IP (Internet Protocol) grouping, to this IP grouping the grouping of same packet configuration being arranged, this form of implementation also can be suitable for.

First method at first is described.Figure 32 illustration is used to carry out the structure of this first method.In mobile communication system shown in Figure 32, a plurality of base stations 2102,2112 pass through network 1 and intercom mutually.

Base station 2102 has: the transceiver 5 that carries out data transmit-receive through antenna for base station 6 with respect to wireless network; Comprise the described data link that requires control that sends again automatically of first form of implementation and transmit the data link transmission control part 2103 that control is controlled each one in the base station 2102 simultaneously; Receive the base station that under the situation such as base station change requirement the data link control information transmission is sent to the change object, carrying out the capsuleization and transport unit 2105 of capsuleization described later simultaneously; Can be to the grouped data of transfer of data control part 2103 etc. as the storage part 2104 of temporary storage aera; Go to capsule portion 2106 to what the capsule that receives divided that group goes capsuleization (untiing capsule).

Wherein capsuleization is made of the functional block shown in Figure 33 A on function with transport unit 2105.Specifically, capsuleization comprises with transport unit 2105: the 2105A of capsule portion that makes the grouping capsuleization of data link control information transmission and transmission; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of data link control information transmission of length of group and transmission is recorded in this capsule divides in the title of group, transmits the capsule that this capsule divides group and divides group transport unit 2105B; Divide length that this capsule that is write down the title of group divides group from the capsule that is transmitted and deduct this capsule and divide the length of grouping of this transmission of writing down in the title of grouping of the length of length gained of title of group and transmission when unequal, judge that it is to constitute judging part 2105C by what comprise that the data link control information transmission constituted that this capsule divides group.

There is same structure 2112 of another base stations with aforementioned base station 2102.

The following describes the operation of first method.The data link transmission control part 2103 of base station 2102 is exported to capsuleization and transport unit 2105 with the data link control information transmission.This capsuleization and transport unit 2105 are set the IP address of base station 2102 to the source IP address of posting a letter of IP title portion as shown in figure 34, and to the IP address of network address IP address setting base station 2112.And then in order to send the data link control information transmission to base station as UDP or tcp data, in protocol number, set the number of expression UDP or TCP, block length is set the aggregate value of IP title portion and each length of IP data portion (data portion of UDP or TCP title portion and UDP or TCP).The data link control information transmission of input transfer in the data portion of UDP or TCP constitutes the IP grouping that sends the base station to then.This IP grouping that constitutes passes out to network 1.This IP grouping that is sent arrives base station 2112 by the network address IP address of setting.

In the base station 2112, capsule portion 2116 is gone in this IP grouping input of arrival, and the latter handles according to flow chart shown in Figure 35.In addition, Figure 35 has also described the handling procedure of aftermentioned second method.

At first discern the protocol number (S501 of Figure 35) of the outermost IP title of the grouping portion of input.In this routine situation, the protocol number that identifies is not represented the capsuleization (S502, negative evaluation) of IP, thereby the data portion of extracting certain UDP in the IP data portion or TCP out is as data link control information transmission (S507).This data link control information transmission portion 2113 of extracting out is according to the data link control information transmission of input, carries out the data link transmission control that aforementioned form of implementation has illustrated.

When for example in the data link control information transmission, including the number of grouping of the information of specific travelling carriages such as the IP address of travelling carriage or mobile phone body number or the up-to-date grouping of uniqueness ground identification, control for sending again automatically of the grouping that sends to this travelling carriage, then can adopt the next number of this number.In addition, during when the information that includes specific travelling carriage in the data link control information transmission with from the information of the deletion of the information of the ACK of travelling carriage or stores packets, promptly delete the pairing grouping of the ACK that sends to this travelling carriage or the corresponding deletion of the deletion packets of information of storage in the storage part 2114.

Second method (transmit data link control information transmission and grouping simultaneously or transmit the additional method that the identification packets of information is arranged) below is described.This second method is used in by transfer in the transmitted in packets or visual field diversity etc., will wait for that the information of stored packet and this grouping of identification of uniqueness ground sends the transfer object base station scenario to as ACK; Or be used in will divide into groups in order to send from the transfer object base station with the information of uniqueness ground this grouping of identification with control base station identification information or one of them is transmitted situation; But or be used in uniqueness discern this grouping information, control base station identification information, show the bright information that whether sends grouping or their combination and the packet distribution of being duplicated to the situation of the base station of duplication packets transmit status.

Figure 36 illustration be used to carry out the apparatus structure of second method.Base station 2202 shown in Figure 36 is except that the structure of the base station 2102 that Figure 32 is arranged, the packet copies portion 2206 that also has duplication packets replaces capsuleization and has the capsuleization and distribution portion 2205 that the packet distribution of will duplicate carries out capsuleization described later for other base stations simultaneously with transport unit 2105.

Capsuleization wherein is made of the functional block shown in Figure 33 B on function with distribution portion 2205.Specifically, capsuleization comprises with distribution portion: the capsule portion 2205 that makes the grouping capsuleization of data link control information transmission and transmission; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of data link control information transmission of length of group and transmission is recorded in this capsule divides in the title of group, transmits capsule that this capsule divides group and divides component and send out the 2205B of portion; Divide length that this capsule that is write down the title of group divides group from the capsule that is transmitted and deduct this capsule and divide the length of grouping of this transmission of writing down in the title of grouping of the length of length gained of title of group and transmission when unequal, judge that it is to constitute judging part 2205C by what comprise that the data link control information transmission constituted that this capsule divides group.

In addition, same structure is also got with above-mentioned base station 2202 in another base station 2212.

The operation of this second method is described again.At this is that just the 2202 additional situations that have the identification packets of information to be distributed to base station 2212 that will duplicate describe from the base station.

The data link transmission control part 2103 of base station 2202 will add the input of identification packets of information and duplicate portion 2206.When the grouping that this identifying information of input will add in this packet copies portion 2206 is input to transceiver 5, after with this packet copies, export to capsuleization and distribution portion 2205, the latter as shown in figure 37, set 2202IP address, base station for the transmission source IP address of IP title portion (a), to the IP address of network address IP address setting base station 2212.And send other base stations to for the IP grouping that will be sent to the purpose travelling carriage, again protocol number is set the number of the capsuleization of expression IP, simultaneously block length is then set the grouping that sends IP title portion (a) and purpose base station to and the identifying information aggregate value of length separately.

In the IP data portion of IP title portion (a), the IP title and the identifying information of purpose travelling carriage given in input transfer, constitutes the IP grouping that sends the base station to.This IP grouping that is constituted arrives base station 2212 by network address IP address.

Base station 2112 makes this IP grouping input of arrival go to capsule portion 2116.This goes to capsule portion 2116 as hereinbefore, handles by flow chart shown in Figure 35.The protocol number (S501 of Figure 35) of outermost IP title portion in the grouping of identification input at first.In this example, because identification number has shown the capsuleization (S502, affirmative determination) of IP, thereby by analyzing the block length of outermost IP title portion (the IP title portion (a) of Figure 37), just can obtain to send to the block length X1 (S503) of the grouping of base station.By analyze the block length of the 2nd IP title portion (the IP title portion (b) of Figure 37) from the outside, obtain to send to the block length X2 (S504) of purpose travelling carriage grouping again.Then, (S505 when adopting gained to divide group leader X1 and X2 and outermost IP title minister's following formula (4) to set up, the affirmative determination situation), then can judge no identifying information, that is in the IP data portion of IP title portion (a), only send the IP grouping of purpose base station to.

(X1)-(outermost IP length for heading)=(X2) (4)

At this moment, extract the IP data portion of IP title portion (a) out, as IP grouping the carrying out following processing (S508) that sends the purpose travelling carriage to, just, the IP grouping that sends the purpose travelling carriage to of this extraction is input to data link transmission control part 2113, and the latter promptly carries out the illustrated data link transmission control of aforementioned form of implementation to this IP grouping of input.

On the other hand, at formula (4) (S505 when being false, the negative evaluation situation), from the section start of the IP data portion of IP title portion (a) information of length X 2 is separated as the IP grouping that sends the purpose travelling carriage to and to extract out, extract out and the remainder of the IP data portion of IP title portion (a) separated as identifying information.IP grouping that sends the purpose travelling carriage to of being extracted out and identifying information input data link transmission control part 2113, this data link transmission control part 2113 utilizes this IP of input identifying information therewith that divides into groups, and carries out the data link transmission control that illustrates in the aforementioned form of implementation.

Here, as the grouping that transmits or be distributed to the base station is that the situation that the IP with respect to Figure 34 and two kinds of different structures shown in Figure 37 divides into groups illustrates respectively, but by adopting method discussed above, transmit or be distributed to the grouping of other base stations from certain base station, for the situation that only contains the data link control information transmission, include data link control information transmission and IP grouping situation that sends the purpose travelling carriage to or the additional situation that identifying information IP grouping is arranged, and the situation that only contains the IP grouping that sends the purpose travelling carriage to, all can discern one by one and can carry out control glossily based on data link control information transmission and identifying information.

As mentioned above, according to the present invention, comprise the data link transmission control that sends requirement control automatically again by mobile change corresponding to travelling carriage, just can suppress propagation delay time increases, comparable existing situation increases circulation, in addition, comprise the base station that sends the data link transmission control that requires control automatically again even if changed, since can by being grouped into of transmitting that a series of data link control information transmission makes that new base station carries out that no show confirms or transmission again, just can avoid the decline of circulation.

In addition, according to the present invention,, just can reduce the increase of intra network communication amount between the time delay of transmission again and base station, even and be when transfer, also can transmit grouping glossily by making the grouping of each base station stored.

Have again, according to the present invention, when travelling carriage be present in should shift when deciding in the scope of incoming level, by in send the phase transformation base station that same grouping travelling carriage then moves outside aforementioned range by a plurality of base stations, just can realize by shifting control and in shifting control, do not need spended time near the base station of travelling carriage, shorten to the time delay when sending again and more effectively carry out the transmission of data link.

Claims (33)

1. data link transmission control method, it is the data link transmission control method that is used to carry out sending again automatically comprising of many group transmitting-receivings the data link transmission control that requires control between travelling carriage and a plurality of base station, it is characterized in that: the grouping after to the additional identifying information that is useful on specific this grouping of the grouping that sends to travelling carriage of base station is stored, duplicate simultaneously, other base stations are given with this packet distribution of duplicating in an aforementioned base station; The grouping that aforementioned other base station stored should be distributed; Comprise an aforementioned base station or a plurality of base station then will add identification packets of information maybe the grouping of this distribution send to travelling carriage.

2. data link transmission control method, it is to send the data link transmission control method that requires control automatically again comprising of being used for dividing into groups to receive and dispatch between travelling carriage and a plurality of base station, and it is characterized in that: a base station is to the additional identifying information that is used for specific this grouping of the grouping that sends to aforementioned travelling carriage; Additional before the above-mentioned base station have the packet memory of above-mentioned identifying information to duplicate simultaneously; Other base stations are given with this packet distribution of duplicating in an above-mentioned base station, above-mentioned other base station stored should distribution grouping, and the grouping that the one or more base stations that comprise an above-mentioned base station will add above-mentioned identifying information maybe the grouping of this distribution send to above-mentioned travelling carriage.

3. data link transmission control method according to claim 1, it is characterized in that, according to the above-mentioned grouping of overtime deletion, or delete above-mentioned grouping according to the notice that above-mentioned grouping and same grouping arrive aforementioned travelling carriage situation with respect to the timer of above-mentioned grouping; Or according to the identifying information that is used for the specific grouping that should delete, or, delete the grouping of identifying information correspondence therewith according to the identifying information that is used for the specific grouping that should delete.

4. data link transmission control method according to claim 3, it is characterized in that, following method is adopted in an above-mentioned base station when the identifying information that will be used for the specific above-mentioned grouping that should delete is notified aforementioned other base stations: when the deletion grouping of this base station, notify this identifying information first method, fix time in the last deletion of notice grouping identifying information second method and deletion according to notify third party's method of the identifying information of this grouping, the combination of one or more of this several method when establishing rules specific cluster then definite.

5. data link transmission control method according to claim 1, it is characterized in that, an aforementioned base station is when receiving requiring of aforementioned travelling carriage under as the purpose of the base station of packet distribution object with new base station, there is the grouping of above-mentioned identifying information to duplicate to additional in this base station stored, and gives aforementioned new base station the packet distribution of duplicating.

6. data link transmission control method according to claim 1, it is characterized in that, aforementioned other base stations are during with the order of these other base stations except the packet distribution subject base-station, to delete the above-mentioned grouping that sends to travelling carriage in this base station stored in the requirement that receives aforementioned travelling carriage.

7. data link transmission control method according to claim 1, it is characterized in that, an aforementioned base station, aforementioned other base stations or this both when receiving the grouping that sends to above-mentioned travelling carriage and storage, this travelling carriage of event notice of this grouping will have been stored, this travelling carriage is after receiving this notice, select a base station and this base station is required the transmission of grouping from the base station of being notified, desired base station promptly sends this grouping.

8. data link transmission control method according to claim 7, it is characterized in that, both receive an aforementioned base station, aforementioned other base stations or this when storing a plurality of grouping that sends to aforementioned travelling carriage and by this travelling carriage and send when requiring, when this grouping is sent to this travelling carriage, a plurality of these travelling carriages of event notice that send to the grouping of this travelling carriage will be stored.

9. data link transmission control method according to claim 1, it is characterized in that, aforementioned travelling carriage will send to the situation of the base station that the grouping of local exchange sends in change, later transmission will be ended in base station in notice change source, simultaneously, will require to send the order of the grouping that sends to local exchange and send the base station that the initial identifying information that divides into groups of object is notified the change object.

10. data link transmission control method according to claim 1, it is characterized in that aforementioned travelling carriage is measured the quality of reception of the signal that sends from a plurality of base stations, the quality of reception of relevant each base station of basis selects base station that the grouping that sends to local exchange is sent and the grouping that selected this base station is required to send to local exchange to send.

11. data link transmission control method according to claim 1, it is characterized in that, aforementioned travelling carriage is measured the quality of reception of the signal that sends from a plurality of base stations, base station selecting the grouping that sends to local exchange is sent according to the quality of reception of relevant each base station and notify a selected base station with the quality of reception of relevant each base station, this base station is then judged with respect to other each base stations according to the quality of reception of aforementioned each base station, whether the predetermined grouping by this base station distribution sends to aforementioned travelling carriage, and this base station will be indicated to other base stations according to the transmit operation of judged result.

12. data link transmission control method according to claim 1 is characterized in that, aforementioned travelling carriage carries out receiving with respect to the diversity type of this grouping when receiving same grouping respectively by a plurality of base stations.

13. data link transmission control method according to claim 1, it is characterized in that, aforementioned travelling carriage is measured the quality of reception of the signal that sends from a plurality of base stations, aforementioned travelling carriage or each base station be the base station of the corresponding call forwarding state of the quality of reception of relevant each base station of basis then, requires the transfer of communications status.

14. data link transmission control method according to claim 13 is characterized in that, the aforementioned communication state comprises: first state that travelling carriage is not divided into groups to receive and dispatch; Can the grouping after additional be sent to second state of travelling carriage to the additional identifying information that is used for specific this grouping of the grouping that sends to above-mentioned travelling carriage; Can duplicate the grouping after adding to the additional identifying information that is used for specific this grouping of the grouping that sends to above-mentioned travelling carriage, the third state of the grouping after the grouping after distribution is duplicated sends this simultaneously and adds; Can receive the grouping of having duplicated from the base station of the third state, this grouping of duplicating be sent to the four condition of travelling carriage.

15. data link transmission control method according to claim 1, it is characterized in that, it can carry out following judgement: in an above-mentioned base station, make the grouping capsuleization of above-mentioned identifying information and distribution, and will represent that being recorded in this capsule by the aggregate value of length that the capsule that capsuleization obtains divides the grouping of the length of above-mentioned identifying information of group length and distribution divides in the header of group and distribute this capsule and divide group, when the capsule of sending from branch divides after length that this capsule that is write down the header of group divides group deducts the header length that this capsule divides group, when being not equal to the length of grouping of this transmission of writing down in the header of being distributed, judge that this capsule divides group and is made of identifying information.

16. mobile communication system, it is to be made of travelling carriage and a plurality of base station, the transmitting-receiving of carrying out the information of being undertaken by grouping comprises the mobile communication system that sends the data link transmission control that requires control automatically more simultaneously, it is characterized in that aforementioned base station has: the grouping that sends to aforementioned travelling carriage has been added the reproducing unit that the grouping of the identifying information that is used for specific this grouping is duplicated; The packet distribution of duplicating is given the dispensing device of other base stations; Will be by the additional storage device that the identification packets of information is arranged or stored of local exchange by the grouping of other base station distributions; The aforementioned additional grouping that has identification packets of information or aforementioned branch to send is sent to the dispensing device of aforementioned travelling carriage.

17. a mobile communication system, it is to be made of travelling carriage and a plurality of base station, comprises the communication system that sends the Data Control that requires link transmission control automatically again when carrying out information transmit-receive by grouping, it is characterized in that comprising: aforementioned base station; To the additional identifying information attachment device that is used for the identifying information of specific this grouping of the grouping that is distributed to aforementioned travelling carriage; To the above-mentioned additional device that has the identification packets of information to duplicate; The packet distribution of duplicating is arrived the dispensing device of other base stations; In the storage device of the aforementioned additional grouping that the identification packets of information is arranged or send from other base station branches of local exchange stored, and will the aforementioned additional dispensing device of discerning packets of information or sending to aforementioned travelling carriage from the grouping that other base station branches are sent that has.

18. mobile communication system according to claim 16 is characterized in that this system also is provided with the delete device of deletion by the aforementioned groupings of aforementioned memory device stores.

19. mobile communication system according to claim 18, it is characterized in that this system also is provided with the deletion packet notification device of the aforementioned identifying information that should delete grouping being notified other base stations, and the notify party rule of this notifying device comprises: first method of deleting the identifying information of the grouping of notifying this deletion when dividing into groups in this base station, fix time in second method of identifying information of grouping of the last deletion of notice, and deleting the third method of notifying the identifying information of this grouping according to establish rules during specially dividing into groups of then determining, the combination of one or more in such three kinds of methods.

20. mobile communication system according to claim 16, it is characterized in that this system also be provided with when above-mentioned base station from aforementioned travelling carriage receive grouping transmission requires again the time, send the grouping retransmission unit that requires and send grouping more again according to this.

21. mobile communication system according to claim 16, it is characterized in that: above-mentioned base station also is provided with when reception sends to the grouping of aforementioned travelling carriage and stores, the storage notifying device of this travelling carriage of event notice that will this grouping of storage, the feature of aforementioned dispensing device are that the requirement according to this travelling carriage sends to this travelling carriage with grouping; This travelling carriage also is provided with receiving this notice and selects the choice device of 1 base station and the transmission claimed apparatus that selected base station is required the transmission of grouping from the base station of being notified.

22. mobile communication system according to claim 21, it is characterized in that, aforementioned base station also has the notice control device, in order to when storing a plurality of grouping that sends to aforementioned travelling carriage, send when requiring when receiving from this travelling carriage, when grouping being sent to this travelling carriage, control, notify this travelling carriage will store a plurality of situations that send to the grouping of this travelling carriage by aforementioned storage notifying device by aforementioned dispensing device.

23. mobile communication system according to claim 16, it is characterized in that, notifying device when aforementioned base station also has change, in order to when the base station change that the grouping that sends to local exchange is sent, after will ending, in the base station in communication notifications change source, will require to send the order of the grouping that sends to local exchange and send the base station that the initial difference identifying information notice of object changes object.

24. mobile communication system according to claim 16 is characterized in that, aforementioned travelling carriage also comprises: the determinator of measuring the quality of reception of the signal that sends from a plurality of base stations; Select the choice device of a base station that the grouping that sends to local exchange is sent according to the quality of reception of each base station; Require a selected base station to send the transmission claimed apparatus of grouping for this station.

25. mobile communication system according to claim 16 is characterized in that, aforementioned travelling carriage also comprises: the determinator of measuring the quality of reception of the signal that sends from a plurality of base stations; Select the choice device of a base station that the grouping that sends to local exchange is sent according to the quality of reception of each base station, the quality of reception of relevant each base station is notified the quality of reception notifying device of a selected base station; Aforementioned base station also comprises: when local exchange being selected as an above-mentioned base station, judge whether that with respect to other each base stations the predetermined grouping with the local exchange distribution sends to the judgment means of aforementioned travelling carriage according to the quality of reception of above-mentioned relevant base station; To indicate indicating device based on the transmit operation of this judged result to other base stations.

26. mobile communication system according to claim 16 is characterized in that, aforementioned travelling carriage also has: when receiving same grouping respectively by a plurality of base stations, carry out the diversity receiver with respect to the diversity type reception of this grouping.

27. mobile communication system according to claim 16 is characterized in that, aforementioned base station also comprises: the determinator of measuring the quality of reception of the signal that a plurality of base stations send; According to the quality of reception of relevant each base station judge each base station be in any decision maker in fixed a plurality of communications status; According to this result of determination, the base station of corresponding call forwarding state requires the state transitions claimed apparatus of the transfer of communications status.

28. mobile communication system according to claim 27 is characterized in that, aforementioned fixed a plurality of communications status comprise: first state that travelling carriage is not divided into groups to receive and dispatch; Can additional grouping be sent to second state of travelling carriage to the additional identifying information that is used for specific this grouping of the grouping that sends to above-mentioned travelling carriage; To the additional identifying information that is used for specific this grouping of the grouping that sends to above-mentioned travelling carriage, duplicate the grouping after adding, the third state of the grouping after the grouping after distribution is duplicated sends this simultaneously and adds; Can receive the grouping of having duplicated from the base station of the third state, this grouping of duplicating be sent to the four condition of travelling carriage.

29. mobile communication system according to claim 16 is characterized in that aforementioned dispensing device comprises: the capsule makeup of the grouping capsuleization of aforementioned identification information and distribution is put; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of aforementioned identification information of length of group and distribution is recorded in this capsule divides in the header of group, distributes the capsule that this capsule divides group and divides the group conveyer; Deduct this capsule and divide the length of grouping of this distribution of writing down in the header of grouping of the length of length gained of header of group and transmission when unequal when divide length that this capsule that is write down the header of group divides group from the capsule of being distributed, judge that it is by the judgment means that constitutes that comprises that identifying information constitutes that this capsule divides group.

30. base station, it be with travelling carriage together, constitute and carry out carrying out the base station that information transmit-receive comprises the mobile communication system that sends the data link transmission control that requires control automatically more simultaneously by grouping, it is characterized in that, be provided with a plurality of such base stations in the aforementioned communication system, this base station has: the reproducing unit that the additional grouping that is useful on the identifying information of specific this grouping of the grouping that sends to travelling carriage is duplicated; The packet distribution of being duplicated is given the dispensing device of other base stations; Will be by the additional storage device that has identification packets of information and the grouping of sending to be stored of local exchange by other base station branches; Institute's stored packet is sent to the dispensing device of travelling carriage.

31. base station, it is formed in travelling carriage and comprises the mobile communication system that sends the data link transmission control that requires control automatically again when carrying out carrying out information transmit-receive by grouping, and in above-mentioned mobile communication system, also contain a plurality of such base stations, this base station has: to the additional identifying information attachment device that is used for the identifying information of specific this grouping in the grouping that sends to above-mentioned travelling carriage; Duplicate the aforementioned additional reproducing unit that the identification packets of information is arranged; The packet distribution of duplicating is given the dispensing device of other base stations; Storage is aforementioned in local exchange additional has the identification packets of information and by the storage device of the grouping of other base stations distributions; This stored packet is sent to the dispensing device of aforementioned travelling carriage.

32. base station according to claim 30, it is characterized in that also having: base station that the quality of reception of the signal that sends according to a plurality of base stations is selected to give to branch that the grouping of this travelling carriage sends and notify the travelling carriage of this base station with the quality of reception of relevant each base station, when local exchange being chosen as an aforementioned base station, can judge with regard to each other base stations whether the predetermined packet of packets of being distributed by local exchange send to the judgment means of aforementioned travelling carriage thus according to the quality of reception of above-mentioned relevant each base station; Indicate indicating device with the transmit operation of judged result in view of the above to other base stations.

33. base station according to claim 30 is characterized in that, described dispensing device comprises: the capsule makeup of the grouping capsuleization of above-mentioned identifying information and distribution is put; The aggregate value of length that the capsule that expression is tried to achieve by capsuleization divides the grouping of the length of aforementioned identification information of length of group and distribution is recorded in this capsule divides in the header of group, distributes the capsule that this capsule divides group and divides the group conveyer; Deduct this capsule and divide the length of grouping of this distribution of writing down in the header of grouping of the length of length gained of header of group and distribution when unequal when divide length that this capsule that is write down the header of group divides group from the capsule of being distributed, judge that it is by the judgment means that constitutes that comprises that identifying information constitutes that this capsule divides group.

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