CN100593918C - A method for hand-over between asynchronous communication network and synchronous communication network of multi mode multi band mobile communication terminal and corresponding mobile communication te - Google Patents
A method for hand-over between asynchronous communication network and synchronous communication network of multi mode multi band mobile communication terminal and corresponding mobile communication te Download PDFInfo
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Abstract
Disclosed are a method for hand-over between an asynchronous communication network and a synchronous communication network of multi mode multi band mobile communication terminal and mobile communication terminal therefor to improve the hand-over connecting rate between an asynchronous communication network and a synchronous communication network in a mixed mobile communication system of an asynchronous network and a synchronous network.
Description
Invention field
The present invention relates to a kind of method that multi mode multi band switches of between asynchronous communication networks and synchronous communication network, carrying out, more particularly, the present invention relates to a kind of method and corresponding mobile communication terminal that multi mode multi band switches that between asynchronous communication networks and synchronous communication network, carry out.
Technical background
Along with the development of mobile communication technology and the improvement of communication network, developed various types of mobile communication system, in order to solve the global roaming problem between the mobile communication system, the IMT-2000 system arises at the historic moment.The IMT-2000 system is divided into based on the synchro system of CDMA 2000 with based on the asynchronous system of WCDMA.
In addition, in order to support the global roaming between the mobile communication system, there is a kind of mobile communication terminal (multi mode multi band mobile communication terminal) both to can be used in the synchro system, also can be used in the asynchronous system, use this mobile communication terminal, in synchro system zone and asynchronous system zone, all can use various service system.
Current, the realization of asynchronous mobile communiation system concentrates on the zone that this service is had very big demand.Therefore, the following exploitation of synchronous mobile communication system: the coverage of synchronous mobile communication system comprises the coverage of asynchronous system.In this process, if the user moves around between asynchronous mobile communiation system zone and synchronous mobile communication system zone, so, need between system, switch, thereby continuous service is provided.
Thus, because the communication system of asynchronous mobile communiation system is different from the communication system of synchronous mobile communication system, so, be difficult to the switching between the realization system, and it is limited improving success rate for switching by current changing method.In addition, because multi mode multi band also comprises two modulator-demodulators, so be very important the switching time of determining these two modulator-demodulators.
If the multi mode multi band mobile communication terminal switches in the borderline region of asynchronous mobile communiation system, then terminal needs about 10 seconds time to trigger switching and makes synchronous modem work.After the synchronous modem work, often do not carry out switching, this is because mobile communication terminal has moved to the bad place of receiving state signal of wireless environment.
In addition, from asynchronous mobile communiation system when synchronous mobile communication system switches, if the synchronous modem of mobile communication terminal early than required and work, then asynchronous modem controller and synchronous modem are simultaneously in running order.Therefore, exist the mobile communication terminal power consumption and increase this shortcoming.
In addition, if handover success then needs the initial power computational methods in mobile communication terminal, so that be transformed into the successful traffic state in the synchronous mobile communication system.But, just to attempt from asynchronous mobile communiation system to regard to synchronous mobile communication system switches, mobile communication terminal without random access, and directly is transformed into traffic state under the idle condition of synchronous mobile communication system.Therefore, the mobile communication terminal that switches to synchronous mobile communication system often can't be transformed into traffic state.
Summary of the invention
Technical problem
Correspondingly, in order to address the above problem, the purpose of this invention is to provide a kind of method of between asynchronous communication networks and synchronous communication network, switching, comprise: from asynchronous mobile communiation system before synchronous mobile communication system switches, make the synchronous modem work of mobile communication system and make it to remain under the low-power mode; According to the implementation status of switching to synchronous mobile communication system from asynchronous mobile communiation system, use the low power state of multi mode multi band mobile communication terminal, improve success rate for switching.
In addition, another object of the present invention is: when the mobile communication terminal that switches to synchronous mobile communication system from asynchronous mobile communiation system is transformed into traffic state the synchronous mobile communication system, a kind of method of setting the initial transmission power of mobile communication system is provided, the switching of execution from the asynchronous communication networks to the synchronous communication network, thus determine initial transmission power value.
Technical scheme
To achieve these goals, according to one embodiment of the invention, a kind of multi mode multi band mobile communication terminal, it can communicate with asynchronous mobile communiation system and synchronous mobile communication system, and between described asynchronous mobile communiation system and described synchronous mobile communication system, switch, comprise: asynchronous modem controller, in the process that communicates with described asynchronous mobile communiation system, if with the predetermined condition that switches to, then export the modulator-demodulator working signal, be used to make modulator-demodulator work, thereby transmit and receive the signal of described synchronous mobile communication system; Synchronous modem operates under the closed condition according to the described modulator-demodulator working signal from described asynchronous mobile communiation system output, is transformed into low-power mode then, i.e. standby; Wherein, by being in the described synchronous modem of described standby, described multi mode multi band mobile communication terminal switches to described multi mode multi band mobile communication terminal according to the handover trigger from described asynchronous mobile communiation system.
In order to realize this purpose, according to a further embodiment of the invention, between asynchronous communication networks and synchronous communication network, carry out the method that multi mode multi band switches, can communicate with asynchronous mobile communiation system and synchronous mobile communication system, and comprise asynchronous modem controller and the synchronous modem that is in the mobile communications network, wherein, between described asynchronous mobile communiation system and described synchronous mobile communication system, exist the switching cell of pre-sizing, comprise: the first step, determine switching condition; In second step,, then make the described synchronous communication network work of described mobile communication terminal, and be transformed into low-power mode, be i.e. standby if in the first step, determined switching condition; Wherein, by being in the described synchronous modem of described standby, described changing method switches to described synchronous mobile communication system according to the handover trigger from described asynchronous mobile communiation system.
In order to realize this purpose, according to other embodiments of the invention, between asynchronous communication networks and synchronous communication network, carry out the method that multi mode multi band switches, can communicate with asynchronous mobile communiation system and synchronous mobile communication system, and comprise asynchronous modem controller and the synchronous modem that is in the mobile communications network, wherein, between described asynchronous mobile communiation system and described synchronous mobile communication system, exist the switching cell of pre-sizing, may further comprise the steps: when mobile communication terminal from described asynchronous mobile communiation system when described synchronous mobile communication system switches, from the initial gain value of described asynchronous mobile communiation system transmission by the asynchronous modem controller reception of described mobile communication system, wherein, described synchronous mobile communication system comprises the following steps: to receive the connection request signal from described mobile communication terminal, and to the response of described mobile communication terminal transmission at described connection request signal, wherein, described connection request signal is to transmit with the Initial Trans value of described mobile communication terminal, and described initial gain value calculates and the Initial Trans value of described mobile communication terminal is based on; Between described synchronous mobile communication system and described mobile communication terminal, send and receive Business Stream.
Beneficial effect
An effect of the present invention is to improve success rate for switching, it is realized in the following manner: from asynchronous mobile communiation system before synchronous mobile communication system switches, make the synchronous modem work of mobile communication system and make it to remain under the low-power mode, carry out the switching from the asynchronous mobile communiation system to the synchronous mobile communication system then.
In addition, an effect of the present invention is: when the mobile communication terminal that switches to synchronous mobile communication system from asynchronous mobile communiation system is transformed into traffic state the synchronous mobile communication system, a kind of method of setting the initial transmission power of mobile communication terminal is provided, it carries out the switching from asynchronous mobile communication network to the synchronous mobile communication network, thereby determines the Initial Trans value.
Description of drawings
Fig. 1 is the block diagram of utilization mobile communications network of the present invention;
Fig. 2 is the block diagram of utilization mobile communication terminal of the present invention;
The flow chart of Fig. 3 shows the method for switching between synchronous communication network and asynchronous communication networks according to first embodiment;
The flow chart of Fig. 4 shows the method for switching according to second embodiment between synchronous communication network and asynchronous communication networks;
The schematic diagram of Fig. 5 has provided the state variation that is in the mobile communication terminal in the asynchronous mobile communiation system according to third embodiment of the invention; And
The flow chart of Fig. 6 shows the method that the Initial Trans of the synchronous mobile communication terminal in the asynchronous communication networks is set according to third embodiment of the invention.
Embodiment
In the following description, mobile communication terminal means the multi mode multi band mobile communication terminal, and it both can be used in the synchronous mobile communication system, also can be used in the asynchronous mobile communiation system.For example, when mobile communication terminal enters handover cell area, synchronous modem work; Call out or receive when calling out synchronous modem work from asynchronous mobile communiation system when sending from mobile communication terminal.To provide specific description below.
Fig. 1 is the block diagram of utilization mobile communications network of the present invention.
Multi mode multi band mobile communication terminal 10 is wirelessly visited asynchronous mobile communiation system 20 and synchronous mobile communication system 30 respectively, so that use speech and data, services.
Asynchronous mobile communiation system 20 comprises: Node B, and it communicates with the mobile communication terminal with radio communications component as the base station; Radio network controller 210 (Node B/RNC), be used for Control Node B; Mobile switching centre 220 (MSC), it links to each other with RNC 210, carry out to call out exchange, thereby provides service for mobile communication terminal 10; SMS service center 240 (SMSC), it links to each other with MSC 220 by No. 7 common signaling nets 230; Home Location Register 260 (HLR); Serving GPRS support node 270 (SGSN), it is connected between RNC 210 and the general packet radio service net 280, is used to preserve the position record of mobile communication terminal 10 and carry out access control and safety measure; GGSN 290 (Gateway GPRS Support Node), it links to each other with GPRS network 280 by SGSN 270 and is connected to the Internet 40, is used to support the network interconnection with external packet.
Synchronous mobile communication system 30 also comprises: base transceiver station (BTS), and it supports the radio communication with mobile communication terminal 10 and base station controller 310 (BSC); Mobile switching centre 320 (MSC), it links to each other with at least one or a plurality of BSC, is used for carrying out calling out switching; SMS service center 340, it links to each other with MSC 320 by No. 7 common signaling nets 330; Home Location Register 360 (HLR); Packet data serving node (PDSN 370), it is connected to BSC 310, is used for providing packet data service to the user; Data core net 380 (DCN) is used to support the connection between PDSN 370 and the Internet 40.
The MSC of asynchronous mobile communiation system 20 and synchronous mobile communication system 30 interconnects by No. 7 common signaling nets 230,330, thereby sends and receive the required information such as switching of mobile communication terminal 10.HLR 260,360 can be embodied as two stack Home Location Registers, the use of its storage and managing user information, supplemental services etc., and, provide user profile according to the request of MSC 220,320.
Fig. 2 is the block diagram of the used mobile communication terminal of the present invention.
As shown in the figure, the used multi mode multi band mobile communication terminal 10 of the present invention comprises: antenna 110; Asynchronous mobile communiation system module 120; Synchronous mobile communication system module 130; Public module 140.
More particularly, antenna 110 can be handled the frequency bandwidth of synchronous mobile communication service and the frequency bandwidth of asynchronous mobile communiation system simultaneously.
Multi mode multi band mobile communication terminal 10 also is equipped with software, the user is used for managing user interface, supplementary service and mobility and control connection/session control, resource and agreement, so can use various application services, carry out and switch and the realization agreement, so that be fit to mobile communication system.
Explained an example of mobile communication terminal above, when it entered handover cell area, synchronous modem work was called out or is received when calling out synchronous modem work from asynchronous mobile communiation system when sending from mobile communication terminal.To be described in more detail below.
The flow chart of Fig. 3 shows the method for switching between synchronous communication network and asynchronous communication networks according to first embodiment of the invention.For example, call out or receive when calling out synchronous modem 133 work of mobile communication terminal 10 from asynchronous mobile communication network when the multi mode multi band mobile communication terminal that is arranged in asynchronous communication networks sends.
If being arranged in the mobile communication terminal 10 of asynchronous communication system coverage sends and calls out or receive (S101) when calling out, asynchronous modem controller 123 request synchronous modems 133 work (S103) of mobile communication terminal 10 from synchronous mobile communication system 20.
Correspondingly, synchronous modem 133 work of mobile communication terminal 10 are searched the initialization procedure of modulator-demodulator and the pilot channel of synchronous mobile communication system 30, thereby are carried out initialization (S105).
After synchronous modem 133 work and carrying out initialization, synchronous modem 133 is transformed into low-power mode (S107).At this moment, the low-power mode of synchronous modem 133 is represented: though synchronous modem 133 energisings,, the transmission of information and reception suspend, and the CPU of modulator-demodulator quits work.The current power consumption amount is 1～1.5, and it is less than the amount of power consumption of existing idle condition.Here, synchronous modem 133 needs about 1 second time to be transformed into idle condition from low-power mode.
When the mobile communication terminal 10 that uses asynchronous mobile communiation system 20 services passed the coverage that handover cell area moves on to synchronous mobile communication system 30, asynchronous mobile communiation system 20 and asynchronous modem controller 123 were carried out the triggering (S109) of switching.
According to the request that is transformed into idle condition among the step S111, the pilot channel and the synchronizing channel (S115, S117) of synchronous modem 133 search synchronous mobile communication systems are transformed into idle condition (S119) then.
Afterwards, asynchronous mobile communiation system 20 indication asynchronous modem controllers 123 are according to the system information of obtaining from the base transceiver station of asynchronous mobile communiation system in step S113, carry out and switch (S121), asynchronous modem controller 123 is transformed into traffic state (S123) by public module 140 request synchronous modems 133.
Correspondingly, synchronous modem 133 is carried out initialization, so that be transformed into traffic state, and sends the back to business, so as with synchronous mobile communication system 30 synchronous (S127).
Then, synchronous modem 133 is to the base transceiver station report of synchronous mobile communication system 30, finishing switching (S129), then, by public module 140 asynchronous modem controller 123 and asynchronous vocoder 124 are not worked, and making synchronous mobile communication system work, vocoder 134 is changed vocoders synchronously.
After asynchronous mobile communiation system 20 switches to synchronous mobile communication system 30, the synchronous modem 133 of mobile communication terminal 10 is kept the calling connection status before switching intact.
The flow chart of Fig. 4 shows the method for switching according to second embodiment between synchronous communication network and asynchronous communication networks.For example, move to handover cell area, then synchronous modem 133 work of mobile communication terminal 10 if be arranged in the multi mode multi band mobile communication terminal of asynchronous communication networks.
If mobile communication terminal 10 enters the coverage of synchronous mobile communication system from asynchronous mobile communiation system, then the asynchronous modem controller 123 of mobile communication terminal 10 obtains system information from the base transceiver station of synchronous handover cell area, and recognizes that mobile communication terminal 10 enters handover cell area.Correspondingly, asynchronous modem controller 123 is by 133 work (S203) of public module 140 request synchronous modems.
In the present invention, if the asynchronous modem controller 123 of mobile communication terminal 10 enters handover cell area, it just asks operation synchronous modem 133 automatically.
Correspondingly, synchronous modem 133 work of mobile communication terminal 10, thus search the initialization procedure of modulator-demodulator and the pilot channel of synchronous mobile communication system 30, and carry out initialization (S205).
After synchronous modem 133 work and carrying out initialization, synchronous modem 133 is transformed into low-power mode (S207).At this moment, the low-power mode of synchronous modem 133 is represented: though synchronous modem 133 energisings,, the transmission of information and reception suspend, and the CPU of modulator-demodulator quits work.The current power consumption amount is 1～1.5, and it is less than the amount of power consumption of existing idle condition.Here, synchronous modem 133 needs about 1 second time to be transformed into idle condition from low-power mode.
When the mobile communication terminal 10 that uses asynchronous mobile communiation system 20 services passed the coverage that handover cell area moves on to synchronous mobile communication system 30, asynchronous mobile communiation system 20 and asynchronous modem controller 123 were carried out the triggering (S209) of switching.
According to the request that is transformed into idle condition among the step S211, the pilot channel and the synchronizing channel (S215, S217) of synchronous modem 133 search synchronous mobile communication systems are transformed into idle condition (S219) then.
Afterwards, asynchronous mobile communiation system 20 indication asynchronous modem controllers 123 are according to the system information of obtaining from the base transceiver station of asynchronous mobile communiation system in step S213, carry out and switch (S221), asynchronous modem controller 123 is transformed into traffic state (S223) by public module 140 request synchronous modems 133.
Correspondingly, synchronous modem 133 is carried out initialization, so that be transformed into traffic state, and sends the back to business, so as with synchronous mobile communication system 30 synchronous (S227).
Then, synchronous modem 133 is to the base transceiver station report of synchronous mobile communication system 30, finishing switching (S229), then, by public module 140 asynchronous modem controller 123 and asynchronous vocoder 124 are not worked, and making synchronous mobile communication system work, vocoder 134 is changed vocoders (S231) synchronously.
After step S231, synchronous modem 133 keeps idle condition.
The schematic diagram of Fig. 5 has provided the state variation that is in the mobile communication terminal in the synchronous mobile communication system according to third embodiment of the invention, shows the process that is transformed into traffic state from asynchronous mobile communiation system to the mobile communication terminal of synchronous mobile communication system switching.
As shown in Figure 5, after switching to synchronous mobile communication system 30 from asynchronous mobile communiation system 20 and being transformed into idle condition from the synchronous modem init state, be transformed into traffic state if be arranged in the multi mode multi band mobile communication terminal 10 of synchronous mobile communication system, it just directly is transformed into traffic state, and without the existing systems access state.
After carry out switching, directly be transformed into traffic state and be without the reason of existing systems access state: from asynchronous mobile communiation system when synchronous mobile communication system switches, search for pilots channel and synchronizing channel etc. in advance.To be described in detail this below.
The flow chart of Fig. 6 shows the method for the Initial Trans of setting the mobile communication terminal in the synchronous communication network according to third embodiment of the invention.For example, at the asynchronous mobile communiation system viability, mobile communication terminal can send signal or from the synchronous mobile communication system received signal to synchronous mobile communication system.
If mobile communication terminal 10 enters the coverage of synchronous mobile communication system from asynchronous mobile communiation system, then the asynchronous modem controller 123 of mobile communication terminal 10 obtains system information (S301) from the base transceiver station of synchronous handover cell area, and recognizes that mobile communication terminal 10 enters handover cell area.Correspondingly, asynchronous modem controller 123 is by public module 140 request operation synchronous modems 133, and request simultaneously switches to asynchronous mobile communiation system (S303).
In the present invention, if the synchronous modem 133 of mobile communication terminal 10 enters handover cell area, it just asks operation synchronous modem 133 automatically, comprises that the signal of system information uses identical frequency with asynchronous mobile communiation system.
Correspondingly, synchronous modem 133 work of mobile communication terminal 10, and carry out initialization, thus search the initialization procedure of modulator-demodulator and the pilot channel (S304) of synchronous mobile communication system; The pilot channel and the synchronizing channel (S305, S306) of search synchronous mobile communication system 30; And be transformed into idle condition (S307).
Afterwards, asynchronous mobile communiation system 20 indication asynchronous modem controllers 123 are carried out according to the system information of obtaining from asynchronous mobile communiation system in step S303 and are switched (S308), and asynchronous modem controller 123 is to synchronous modem 133 channel assignment message (S309).
In step S308 and S309, asynchronous mobile communiation system 20 sends the INIT-PWR (initial gain value of asynchronous communication networks to asynchronous modem controller 123, the back is referred to as " initial gain value "), asynchronous modem controller 123 sends the initial gain value that sends from synchronous mobile communication system 20 to synchronous modem 133 channel assignment message the time.
At this moment, initial gain value (INIT-PWR) is represented the value that Virtual network operator can use erratically according to specific cell environment.Its size is that the latter is depended on cell environment erratically from the average power content of mobile communication terminal output.
Correspondingly, synchronous modem 133 is carried out initialization, so that be transformed into traffic state (S310), and sends the back to business, so as with synchronous mobile communication system 30 synchronous (S311).
Then, synchronous modem 133 is to the base transceiver station report finishing switching (S312) of synchronous mobile communication system 30, then, by public module 140 asynchronous modem controller 123 and asynchronous vocoder 124 are not worked, and making synchronous mobile communication system work, vocoder 134 is changed vocoders (S313) synchronously.
The mobile communication terminal 10 that switches to synchronous mobile communication system and be transformed into idle condition from asynchronous mobile communiation system is asked according to the user, be transformed into traffic state, thereby send a SMS (Short Message Service) from another mobile communication terminal, perhaps carry out paging.
In synchronous mobile communication system 30, the synchronous modem 133 that is in the mobile communication terminal 10 of idle condition calculates Initial Trans, so that send to traffic state (S314).
In step S314, calculate according to [formula I] by the Initial Trans value that the synchronous modem 133 of mobile communication terminal 10 is set:
[formula I]
The Initial Trans value=-(mean receiving power of synchronous modem)+initial power+offset power
In the present invention, the mean receiving power of synchronous modem is represented the average power content that sends and received by synchronous modem from base transceiver station.High received power means: the environment of the synchronous mobile communication system 30 under the current mobile communication is good.Therefore, when setting the Initial Trans value of mobile communication terminal, if the mean receiving power value height of synchronous modem 133 determines that then the Initial Trans value is low, if the mean receiving power value of synchronous modem 133 is low, determine that then the Initial Trans value is high.
In addition, initial gain value is to send and be sent to by asynchronous modem controller the value of synchronous modem in step S309 from asynchronous mobile communiation system.Because mobile communication terminal 10 directly is transformed into traffic state and without the existing systems access state, thereby determine the Initial Trans under the idle condition, so, reflected the initial power of in asynchronous mobile communiation system, determining, thereby determined Initial Trans.In the present invention, initial power is based on the mobile communication system in particular network environment output and the value determined by the average power content of asynchronous mobile communiation system storage in network.This cell environment has obtained reflection.
Offset power is the value of determining according to the bulk properties of mobile communication terminal, determines to carry out with network the degree of signal emission and signal reception, is used to proofread and correct this value, and its characteristic according to mobile communication system terminal 10 changes.
The synchronous modem 133 of mobile communication terminal 10 sends connection request signal to synchronous mobile communication system 30, and as the initial gain value of calculating, request connects synchronous mobile communication system (S315) with this.
After step S315, synchronous mobile communication system 30 is received the connection request signal that sends as Initial Trans from the synchronous modem 133 of mobile communication terminal 10, and its response of transmission in S316, synchronous mobile communication system 30 and mobile communication terminal 10 send and receiving control message, are used for setting up calling etc.
Mobile communication terminal has only been introduced in above detailed description can send signal and from the situation of synchronous mobile communication system received signal to synchronous mobile communication system at the asynchronous mobile communiation system viability.
But the signal that the mobile communication terminal that is suitable for also can only receive synchronous mobile communication system uses the service of asynchronous mobile communiation system simultaneously.
Though the invention has been described in conjunction with the preferred embodiments above and description; but; those skilled in the art are to be understood that; under the prerequisite of spirit that does not break away from claims and protection range; can make various modifications and accommodation, protection scope of the present invention is defined by appended claim.
Industrial applicibility
The present invention relates to the multi mode multi band mobile communication terminal at asynchronous communication networks and synchronous A kind of method of switching between the communication network more particularly, the present invention relates to asynchronous Carry out a kind of method that multi mode multi band switches between communication network and the synchronous communication network, use In improving the multi mode multi band mobile communication terminal at asynchronous communication networks and synchronous communication network Between the success rate switched.
Claims (14)
1, a kind of multi mode multi band mobile communication terminal can communicate with asynchronous mobile communiation system and synchronous mobile communication system, and switch between described asynchronous mobile communiation system and described synchronous mobile communication system, comprising:
Asynchronous modem controller, it is in the process that communicates with described asynchronous mobile communiation system, if with the predetermined condition that switches to, then export the modulator-demodulator working signal, be used to make modulator-demodulator work, thereby transmit and receive the signal of described synchronous mobile communication system; And
Synchronous modem, it operates under the closed condition according to the described modulator-demodulator working signal from described asynchronous mobile communiation system output, is transformed into low-power mode then, i.e. standby;
Wherein, by being in the described synchronous modem of described standby, described multi mode multi band mobile communication terminal is carried out the switching to described synchronous mobile communication system according to the handover trigger from described asynchronous mobile communiation system.
2, multi mode multi band mobile communication terminal according to claim 1 is characterized in that:
Be used to set up the signal of calling or received the signal that is used to set up calling from described asynchronous mobile communiation system if described asynchronous modem controller has sent to described asynchronous mobile communiation system, it just determines to have satisfied switching condition.
3, multi mode multi band mobile communication terminal according to claim 2 is characterized in that:
After making described modulator-demodulator work and carrying out described switching, described synchronous modem sends signal and receives signal from described synchro system to described synchro system, and keeps the call setup state.
4, multi mode multi band mobile communication terminal according to claim 1 is characterized in that:
Described multi mode multi band mobile communication terminal enters switching cell, and the borderline region in promptly described asynchronous mobile communiation system zone and described synchronous mobile communication system zone, then described asynchronous modem controller request automatically make described synchronous modem work.
5, multi mode multi band mobile communication terminal according to claim 4 is characterized in that:
After making described synchronous modem work and carrying out described switching, described synchronous modem is kept idle condition.
6, multi mode multi band mobile communication terminal according to claim 1 is characterized in that:
The low-power mode of described synchronous modem is represented: though the energising of described synchronous modem,, the transmission of information and reception suspend, and the CPU of described synchronous modem quits work.
7, a kind of method of between asynchronous mobile communiation system and synchronous mobile communication system, carrying out the multi mode multi band switching, wherein, the multi mode multi band mobile communication terminal can communicate with this asynchronous mobile communiation system and synchronous mobile communication system, and comprise asynchronous modem controller and synchronous modem, wherein, exist the switching cell of pre-sizing between described asynchronous mobile communiation system and described synchronous mobile communication system, described method comprises:
The first step is determined switching condition; And
In second step,, then make the described synchronous communication network work of mobile communication terminal, and be transformed into low-power mode, be i.e. standby if in the first step, determined switching condition;
Wherein, by being in the described synchronous modem of described standby, described changing method is carried out the switching to described synchronous mobile communication system according to the handover trigger from described asynchronous mobile communiation system.
8, method of between asynchronous mobile communiation system and synchronous mobile communication system, carrying out the multi mode multi band switching according to claim 7, wherein, the described first step is characterised in that:
Be used to set up the signal of calling or received the signal that is used to set up calling from described asynchronous mobile communiation system if described asynchronous modem controller has sent to described asynchronous mobile communiation system, it just determines to have satisfied switching condition, and request makes described synchronous modem work.
9, method of carrying out the multi mode multi band switching between asynchronous mobile communiation system and synchronous mobile communication system according to claim 8 is characterized in that:
After making described synchronous modem work and carrying out described switching, described synchronous modem sends signal and from described synchro system received signal to described synchronous mobile communication system, and keeps the call setup state.
10, method of between asynchronous mobile communiation system and synchronous mobile communication system, carrying out the multi mode multi band switching according to claim 7, wherein, the described first step is characterised in that:
If described multi mode multi band mobile communication terminal enters switching cell, i.e. the borderline region in asynchronous mobile communiation system zone and synchronous mobile communication system zone, then described asynchronous modem controller asks to make described synchronous modem work automatically.
11, method of carrying out the multi mode multi band switching between asynchronous mobile communiation system and synchronous mobile communication system according to claim 10 is characterized in that:
After making described synchronous modem work and carrying out described switching, described synchronous modem is kept idle condition.
12, method of carrying out the multi mode multi band switching between asynchronous mobile communiation system and synchronous mobile communication system according to claim 11 is characterized in that:
The low-power mode of described synchronous modem is represented: though the energising of described synchronous modem,, the transmission of information and reception suspend, and the CPU of described synchronous modem quits work.
13, a kind of method of between asynchronous mobile communiation system and synchronous mobile communication system, carrying out the multi mode multi band switching, wherein, the multi mode multi band mobile communication terminal can communicate with this asynchronous mobile communiation system and synchronous mobile communication system, and comprise asynchronous modem controller and synchronous modem, wherein, between described asynchronous mobile communiation system and described synchronous mobile communication system, exist the switching cell of pre-sizing, said method comprising the steps of:
When described multi mode multi band mobile communication terminal from described asynchronous mobile communiation system when described synchronous mobile communication system switches, from the initial gain value of described asynchronous mobile communiation system transmission by the asynchronous modem controller reception of described multi mode multi band mobile communication terminal, wherein, described synchronous mobile communication system may further comprise the steps:
Reception is from the connection request signal of described mobile communication terminal, and transmit the pairing response of described connection request signal to described mobile communication terminal, wherein, described connection request signal is to transmit with the Initial Trans value of described mobile communication terminal, and described initial gain value calculates and the Initial Trans value of described mobile communication terminal is based on; And
Between described synchronous mobile communication system and described mobile communication terminal, send and receive Business Stream;
Wherein, the computational methods of the described Initial Trans value of being calculated by described mobile communication terminal are: described initial gain value is deducted the average received value of described synchronous modem, then, add offset power;
The mean receiving power value of described synchronous modem is the mean value of the performance number that sends and receive at described synchronous modem from base transceiver station, and described initial gain value depends on the mean value of described asynchronous mobile communiation system to the performance number of described mobile communication terminal output; And
Proofread and correct described Initial Trans value by described offset power.
14, method of carrying out the multi mode multi band switching between asynchronous mobile communiation system and synchronous mobile communication system according to claim 13 is characterized in that:
When described mobile communication terminal switches, described initial gain value is transferred to described mobile communication terminal together with the handoff request message that sends from described asynchronous mobile communiation system.
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|---|---|---|---|
| KR1020040021964A KR100612682B1 (en) | 2004-03-31 | 2004-03-31 | Method for Hand-over Between Asynchronous Communication Network and Synchronous Communication Network Using Low Power Mode of Multi Mode Multi Band Mobile Communication Terminal and Mobile Communication Terminal therefor |
| KR1020040021964 | 2004-03-31 | ||
| KR1020040022947 | 2004-04-02 |
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| CN1961503A CN1961503A (en) | 2007-05-09 |
| CN100593918C true CN100593918C (en) | 2010-03-10 |
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| CN200580017469A Expired - Fee Related CN100593918C (en) | 2004-03-31 | 2005-03-31 | A method for hand-over between asynchronous communication network and synchronous communication network of multi mode multi band mobile communication terminal and corresponding mobile communication te |
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| KR (1) | KR100612682B1 (en) |
| CN (1) | CN100593918C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100713493B1 (en) * | 2005-12-26 | 2007-04-30 | 삼성전자주식회사 | Method for reducing consumption of an electric current in multi-mode terminal and the terminal thefefor |
| KR100652931B1 (en) * | 2005-12-26 | 2006-12-01 | (주)케이티에프테크놀로지스 | Multiband-multimode terminal and modem power control method for multiband-multimode terminal |
| KR100739183B1 (en) * | 2005-12-30 | 2007-07-13 | 엘지전자 주식회사 | Mobile communications terminal and method for reducing power consumption of a first communications module according to the activation of a second communications module |
| KR100879664B1 (en) * | 2006-02-28 | 2009-01-21 | (주)케이티에프테크놀로지스 | Method of performing traffic handover between synchronous mobile radio communication network and asynchrous mobile radio communication network and mobile communication terminal for performing the traffic handover |
| KR101221908B1 (en) * | 2006-09-04 | 2013-01-15 | 엘지전자 주식회사 | Method of executing hand-over and Mobile Station implementing the same |
| US7936708B2 (en) * | 2008-02-26 | 2011-05-03 | Intel Corporation | Device, system, and method of wireless network selection and handover |
| CN108268416B (en) * | 2017-12-13 | 2021-02-23 | 深圳市国微电子有限公司 | Asynchronous interface to synchronous interface control circuit |
| KR102338504B1 (en) * | 2018-02-08 | 2021-12-14 | 삼성전자 주식회사 | Method and apparatus for performing enhanced synchronization in wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7564810B2 (en) * | 2002-05-08 | 2009-07-21 | Microsoft Corporation | Method and system for managing power consumption of a network interface module in a wireless computing device |
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| KR20050096554A (en) | 2005-10-06 |
| CN1961503A (en) | 2007-05-09 |
| KR100612682B1 (en) | 2006-08-14 |
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