CN101389078B - Radio terminal device, radio communication system and method for connecting network - Google Patents
Radio terminal device, radio communication system and method for connecting network Download PDFInfo
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Abstract
A wireless terminal device, a wireless communication system and a method that connects the networks, the wireless terminal device comprises a first network module being selectively started or closed; a second network module connected with a second base desk to access a wireless local network and receive the service information; wherein when the first network module is closed and the second network module is opened, the wireless terminal device starts the first network module according to a rule, making the first network module be selecting a servo base desk connected from a plurality of first base desks to access a wireless wide area network. The invention assists the wireless terminal device to switch rapidly from the wireless local network to the wireless wide area network, which reduces failure rate of the wireless terminal device switching from the wireless local network to the wireless wide area network when it is deposited on dialing, standby or conversation, thereby providing a seamless communication network.
Description
Technical field
The invention belongs to the method for a kind of wireless terminal device (wireless terminal), wireless telecommunication system (wireless communication system) and this wireless terminal device connected network in the field of wireless communication.
Background technology
Along with the development of mechanics of communication, mobile communication device now can provide the user to see through multiple pipeline to carry out communication, for example, sees through radio wide area networks such as Global System for Mobile Communication (GSM) network or third generation mobile communication network and carries out communication; Perhaps, see through WLAN, carry out communication with the mode of radio network telephone (VoWLAN).
At present existing fixing and action network (the Fixed Mobile Convergence that confluxes; FMC) framework is suggested and actual the use; The FMC main purpose is to integrate aforesaid WWAN and WLAN, supplies the user between these two types of networks, to switch, and carries out communication to select suitable network.In addition, also be pushed out, for example, have the mobile communication device of gsm module and WiFi module in response to the Mobile Communications product of FMC framework.The user can (Wireless fidelity, the mode that the place that WiFi) network signal is good is selected to see through VoWLAN be carried out communication, and when the WiFi network signal dies down, switches to the GSM network and continue communication at wireless authentication.Yet, when carrying out communication, need open gsm module and WiFi module simultaneously with aforementioned mobile communication device, this will make mobile communication device can open the comparatively power consumption of two pack modules simultaneously.If power saving and when using the WiFi module, close gsm module; Then die down at the WiFi network signal; When the user desires to switch to the GSM network; The gsm module of mobile communication device can begin to scan the program of contiguous base station information, may have little time to search suitable base station or have little time to be attached to the GSM network, thereby cause communicating interrupt.In sum, how to make the aforementioned mobile communication device can power saving and can in time between two kinds of networks, switch, just become the problem that the anxious desire of researcher of association area solves.
Summary of the invention
The invention provides the method for a kind of wireless terminal device, wireless telecommunication system and connected network; But the assist wireless device switches to radio wide area network from WLAN soon; Effectively reduce wireless terminal device switches to radio wide area network from WLAN when dialing, standby or conversation mortality, reach the purpose that no seam (seamless) communication network is provided.
The technical scheme that the present invention adopts is following:
A kind of wireless terminal device; Optionally (selectively) links a radio wide area network (Wireless Wide Area Network; WWAN) and a WLAN (Wireless Local Area Network, WLAN), this radio wide area network comprises a plurality of first base stations (base station); It is characterized in that this WLAN comprises one second base station in order to capture the information on services of these a plurality of first base stations, this wireless terminal device comprises:
First mixed-media network modules mixed-media optionally starts and close; And
Second mixed-media network modules mixed-media connects this second base station in order to access this WLAN and to receive this information on services;
Wherein close and this second mixed-media network modules mixed-media when opening when this first mixed-media network modules mixed-media; This wireless terminal device can start this first mixed-media network modules mixed-media according to a criterion; Make this first mixed-media network modules mixed-media in these a plurality of first base stations, select a servo base station to link, to access this radio wide area network according to this information on services.
Concretely, said criterion comprises: when being connected signal strength and being lower than one first default value between this second mixed-media network modules mixed-media and this second base station, start this first mixed-media network modules mixed-media; When being connected signal strength and being higher than one second default value between this second mixed-media network modules mixed-media and this second base station, close this first mixed-media network modules mixed-media.
Wherein, said second base station comprises one the 3rd wireless module, in order to capture the information on services of these a plurality of first base stations.
Said information on services comprises: the signal strength information of these first base stations, channel information and base station identification code (Base Station Identity Code, BSIC) information.
When this servo base station of first mixed-media network modules mixed-media binding was failed, this first mixed-media network modules mixed-media scanned the channel information in this information on services, searches the first suitable base station and replaces this servo base station.
Said information on services comprises one first channel information and the one first signal strength information that is relevant to this servo base station, and wherein the first signal strength information is signal strength soprano in these a plurality of first base stations.
When this first mixed-media network modules mixed-media starts, link this servo base station according to this first channel information.
This radio wide area network is a Global System for Mobile Communication (Global System for Mobile Communications; GSM) network, a general packet wireless service (General Packet Radio Service, GPRS) network or a third generation mobile communication network.
Perhaps, this WLAN be one wireless all can LAN (Wireless Metro Area Network; WMAN) or a wireless personal local area network network (Wireless Personal Area Network, WPAN).
Moreover this WLAN is a global intercommunication microwave access (Worldwide Interoperability for Microwave Access, a WiMax) network.
Person again, this wireless personal local area network network is a wireless authentication (Wireless fidelity, WiFi) network or a blueteeth network.
This radio wide area network and this WLAN can be integrated in fixing and an action network conflux (Fixed Mobile Convergence, FMC) framework.
A kind of wireless telecommunication system is characterized in that it comprises:
(Wireless Wide Area Network WWAN), comprises a plurality of first base stations (base station) to radio wide area network;
(Wireless Local Area Network WLAN), comprises one of each these first base station of one second base station acquisition information on services to WLAN; And
Wireless terminal device; Comprise first mixed-media network modules mixed-media and second mixed-media network modules mixed-media; This first mixed-media network modules mixed-media system optionally (selectively) starts and closes, and this second mixed-media network modules mixed-media is in order to connect this second base station, to access this WLAN and to receive this information on services;
Wherein close and second mixed-media network modules mixed-media when opening when first mixed-media network modules mixed-media; This wireless terminal device can start this first mixed-media network modules mixed-media according to a criterion; Make this first mixed-media network modules mixed-media one of select in these first base stations to connect, to access this radio wide area network according to this information on services as servo base station.
In this wireless telecommunication system, said criterion comprises: when being connected signal strength and being lower than one first default value between this second mixed-media network modules mixed-media and this second base station, start this first mixed-media network modules mixed-media; When being connected signal strength and being higher than one second default value between this second mixed-media network modules mixed-media and this second base station, close this first mixed-media network modules mixed-media.
This second base station system comprises that one the 3rd wireless module is in order to capture this information on services of these a plurality of first base stations.
This information on services comprises these first base stations, signal strength information, channel information and base station identification code (Base Station Identity Code, BSIC) information.
When this this servo base station of first mixed-media network modules mixed-media binding was failed, this first mixed-media network modules mixed-media scanned the channel information in this information on services, replaces this servo base station to search the first suitable base station.
This information on services comprises first channel information and the first signal strength information that is relevant to this servo base station, and wherein this first signal strength information is signal strength soprano in said a plurality of first base station.
When this first mixed-media network modules mixed-media starts, link this servo base station according to this first channel information.
This radio wide area network is a Global System for Mobile Communication (Global System for Mobile Communications; GSM) network, a general packet wireless service (General Packet Radio Service, GPRS) network or a third generation mobile communication network.
Perhaps, this WLAN be one wireless all can LAN (Wireless Metro Area Network; WMAN) or a wireless personal local area network network (Wireless Personal Area Network, WPAN).
Moreover this is wireless all can to can be a global intercommunication microwave access (Worldwide Interoperability for Microwave Access, WiMax) network by LAN.
Person again, this wireless personal local area network network is a wireless authentication (Wireless fidelity, WiFi) network or a blueteeth network.
This radio wide area network and this WLAN can be integrated in fixing and an action network conflux (Fixed Mobile Convergence, FMC) framework.
This wireless terminal device is in dialing (call setup) state, a standby (idle) state or a talking state.
A kind of method of wireless terminal device connected network; This wireless terminal device connects a radio wide area network and a WLAN in order to selectivity; It is characterized in that this radio wide area network comprises a plurality of first base stations (base station); This WLAN comprises second base station, and to capture an information on services of these a plurality of first base stations, this wireless terminal device comprises first mixed-media network modules mixed-media in order to connect this radio wide area network; And second mixed-media network modules mixed-media connect this second base station, this method comprises the following step:
(a) close and this second mixed-media network modules mixed-media when opening when this first mixed-media network modules mixed-media, start this first mixed-media network modules mixed-media according to a criterion;
(b) this second mixed-media network modules mixed-media receives this information on services according to this criterion from this second base station;
(c) this second mixed-media network modules mixed-media is sent to this first mixed-media network modules mixed-media with this information on services; And
(d) this first mixed-media network modules mixed-media selects a servo base station to connect according to this information on services from a plurality of first base stations, to access this radio wide area network.
In the said method, said step (b) further comprises the following step:
(b1) this second mixed-media network modules mixed-media requires signal to this second base station according to this criterion transmission one;
(b2) this second base station requires this information on services of contiguous first base station of signal capturing according to this; And
(b3) this second base station is back to this second mixed-media network modules mixed-media with this information on services.
In this method, this criterion comprises: when being connected signal strength and being lower than one first default value between this second mixed-media network modules mixed-media and this second base station, start this first mixed-media network modules mixed-media.
Perhaps, this criterion comprises: when being connected signal strength and being higher than one second default value between this second mixed-media network modules mixed-media and this second base station, close this first mixed-media network modules mixed-media.
Perhaps, this information on services comprises these first base stations, signal strength information, channel information and base station identification code (Base Station Identity Code, BSIC) information.
This method also can further comprise the following step:
(e) when this this servo base station of first mixed-media network modules mixed-media binding was failed, this first mixed-media network modules mixed-media scanned the channel information in this information on services, replaces this servo base station to search the first suitable base station.
This information on services comprises one of this servo base station first channel information and the one first signal strength information of being relevant to, and wherein this first signal strength information system is signal strength soprano in these a plurality of first base stations.
When this first mixed-media network modules mixed-media starts, link this servo base station according to this first channel information.
Can detail the present invention and appendedly graphicly further understood by following execution mode about beneficial effect of the present invention.
Description of drawings
Fig. 1 is the functional block diagram of the wireless terminal device and the wireless telecommunication system of one specific embodiment according to the present invention.
Fig. 2 is the method flow diagram of the wireless terminal device connected network of one specific embodiment according to the present invention.
Fig. 3 is the method flow diagram of the wireless terminal device connected network of one specific embodiment according to the present invention.
Embodiment
The invention provides the method for a kind of wireless terminal device, wireless telecommunication system and wireless terminal device connected network.Disclose as follows according to a particular embodiment of the invention.
See also Fig. 1, Fig. 1 illustrates the functional block diagram of the wireless terminal device and the wireless telecommunication system of one specific embodiment according to the present invention.As shown in the figure, this wireless telecommunication system 1 comprises wireless terminal device 10, radio wide area network 12 and WLAN 14.
In reality, this radio wide area network 12 can be, but is not subject to, like GSM network, GPRS network or 3G mobile communication network.
In practice, this WLAN 14 can be wireless all can LAN (Wireless Metro Area Network; WMAN) or the wireless personal local area network network (Wireless Personal Area Network, WPAN).In practical application, this WMAN can be, but is not subject to, like global intercommunication microwave access (Worldwide Interoperability for Microwave Access, WiMax) network.And this WPAN can be WiFi network or bluetooth (Bluetooth) network.
In addition, in practice, this radio wide area network 12 and this WLAN 14 can be integrated in the FMC framework.Certainly, this radio wide area network 12 and this WLAN 14 be the possibility individualism also, perhaps is integrated in other framework.
As shown in the figure, this radio wide area network 12 comprises a plurality of first base stations (base station) 122a, 122b, 122c.And this WLAN 14 comprises one second base station 142 (for example, but not being subject to bridger (access point)) in order to the information on services of acquisition about these a plurality of first base station 122a, 122b, 122c.In practical application; This information on services can comprise the essential information of these first base stations 122a, 122b, 122c; As the base station identification code (Base Station Identity Code, BSIC), signal strength information, channel information and other suitable message.
In addition, as shown in the figure, in this specific embodiment, this second base station 142 can comprise the 3rd wireless module 1420, and base station radio frequency receiver (cellular RF receiver) for example is to capture aforesaid information on services.
Further, this wireless terminal device 10 comprises first mixed-media network modules mixed-media 102 and second mixed-media network modules mixed-media 104.This first mixed-media network modules mixed-media 102 optionally starts and closes, and this second mixed-media network modules mixed-media 104 can connect second base station 142, accesses WLAN 14 to see through second base station 142, and receives information on services from second base station 142.
When first mixed-media network modules mixed-media 102 is closed and second mixed-media network modules mixed-media 104 when opening; Wireless terminal device 10 can or be closed first mixed-media network modules mixed-media 102 according to criterion startup; When first mixed-media network modules mixed-media 102 starts; First mixed-media network modules mixed-media 102 can select a servo base station in these first base stations 122a, 122b, 122c (in this specific embodiment according to the information on services that second mixed-media network modules mixed-media 104 is received; The first base station 122c is servo base station) link, access radio wide area network 12 to see through servo base station 122c.
In practical application, first base station that first mixed-media network modules mixed-media can be selected to have maximum signal strength in the information on services links as servo base station.In addition, first mixed-media network modules mixed-media also can further be selected servo base station according to the out of Memory in the information on services, for example, belongs to specific telecommunications dealer's base station according to the BSIC Information Selection.
This criterion for example comprises several conditions in the practical application: when being connected signal strength and being lower than one first default value between second mixed-media network modules mixed-media 104 and second base station 142, start first mixed-media network modules mixed-media 102; Or the duration that can be lower than second default value according to above-mentioned connection signal strength greater than a scheduled time, start first mixed-media network modules mixed-media 102.This criterion can comprise in addition in addition: when being connected signal strength and being higher than one second default value between second mixed-media network modules mixed-media 104 and second base station 142; Close first mixed-media network modules mixed-media 102; Make wireless terminal device 10 only see through second base station 142 and access WLAN 14, also can set this criterion certainly according to actual state with second mixed-media network modules mixed-media 104.In the practice, wireless terminal device 10 can start first mixed-media network modules mixed-media 102 according to other suitable criterion, and accesses radio wide area network 12 with first mixed-media network modules mixed-media 102 through servo base station 122c.
When utilizing this information on services, first mixed-media network modules mixed-media (for example links servo base station failure; First mixed-media network modules mixed-media can't link servo base station; Perhaps interrupt with the binding of servo base station) time; First mixed-media network modules mixed-media can scan the channel information in this information on services, searching other first base station, and selects the first suitable base station to replace this servo base station.
See also Fig. 2, the method flow diagram of the wireless terminal device connected network of Fig. 2 one specific embodiment according to the present invention.As previously mentioned, alternative radio wide area network and the WLAN of connecting of this wireless terminal device.This radio wide area network comprises a plurality of first base stations, and this WLAN comprises the information on services of these a plurality of first base stations of one second base station acquisition.
Equally as previously mentioned, this radio wide area network and this WLAN can be integrated in the FMC framework.In addition, this radio wide area network can be, but is not subject to, like GSM network, GPRS network or 3G mobile communication network.And this WLAN can be, but is not subject to, like WMAN (for example, WiMax network) or WPAN (for example, WiFi network or blueteeth network).
In addition, this wireless terminal device comprises first mixed-media network modules mixed-media and connects this radio wide area network, and this second base station of second mixed-media network modules mixed-media connection, to access this WLAN.As shown in Figure 2, this method comprises the following step:
At first,, close and this second mixed-media network modules mixed-media when opening, start this first mixed-media network modules mixed-media according to a criterion when this first mixed-media network modules mixed-media in step S50.For example, this criterion can be: when being connected signal strength and being lower than a default value between this second mixed-media network modules mixed-media and this second base station, start this first mixed-media network modules mixed-media.
Subsequently, in step S52, this second mixed-media network modules mixed-media receives the information on services that is relevant to contiguous first base station from this second base station, and step S52 can carry out preceding execution at step S50, or the carrying out that continues captured up-to-date information on services.As previously mentioned, this information on services can comprise the essential information of first base station, like BSIC, signal strength information, channel information and other suitable message.
Then, in step S54, this second mixed-media network modules mixed-media is sent to this first mixed-media network modules mixed-media with this information on services.At last, in step S56, this first mixed-media network modules mixed-media selects a servo base station to connect according to this information on services from a plurality of first base stations, to access this radio wide area network.In practical application, first base station that first mixed-media network modules mixed-media can be selected to have maximum signal strength in the information on services links as servo base station.In addition, first mixed-media network modules mixed-media also can further be selected servo base station according to the out of Memory in the information on services, and for example, the base station that belongs to specific telecommunications dealer according to the BSIC Information Selection is as servo base station.
In addition, when this this servo base station of first mixed-media network modules mixed-media binding was failed, this first mixed-media network modules mixed-media can scan the channel information in this information on services, replaces this servo base station to search the first suitable base station.
Note that in practice aforesaid step can be carried out suitable transposing or adjustment, the embodiment that is not limited to here to be lifted.For example, step S50 and step S52 can change, that is can receive information on services from second base station by second mixed-media network modules mixed-media, when this criterion meets, restart first mixed-media network modules mixed-media.In addition, in practice, this criterion comprises in addition: when being connected signal strength and being higher than one second default value between this second mixed-media network modules mixed-media and this second base station, close this first mixed-media network modules mixed-media.
Please again referring to Fig. 3, Fig. 3 illustrates the method flow diagram of the wireless terminal device connected network of one specific embodiment according to the present invention.As shown in Figure 3, when second mixed-media network modules mixed-media 104 finds that aforesaid criterion meets (for example, itself with second base station 142 between be connected signal strength and be lower than a default value time), second mixed-media network modules mixed-media, 104 startups, the first mixed-media network modules mixed-media arouse machine processed (step S70).
At this moment, second mixed-media network modules mixed-media 104 sends according to this criterion and requires signal to the second base station 142.And second base station 142 as requested signal transmit to drive signal to the three mixed-media network modules mixed-medias 1420.The 3rd mixed-media network modules mixed-media 1420 is read the information on services of the first contiguous base station according to driving signal, and this information on services can be continued or periodically scanned the first contiguous base station signal gained (step S72) by the 3rd mixed-media network modules mixed-media 1420.
Behind the 3rd mixed-media network modules mixed-media 1420 acquisition information on services, it returns information on services to second mixed-media network modules mixed-media 104.Then, second mixed-media network modules mixed-media 104 transmits and starts signal and information on services to the first mixed-media network modules mixed-media 102.First mixed-media network modules mixed-media 102 can be activated according to starting signal, and beginning one of selects in this a plurality of first base stations as servo base station according to information on services, and with this servo base station synchronous (step S74).
After first mixed-media network modules mixed-media 102 and servo base station were accomplished synchronously, it transmits confirmed signal to the second mixed-media network modules mixed-media 104.Then, second mixed-media network modules mixed-media 104 is according to confirming that signal carries out follow-up switching flow (step S76).And, first mixed-media network modules mixed-media 102 with servo base station synchronously after, begin to access radio wide area network (step S78).
Please note; No matter this wireless terminal device is in any state; Like dialing (call setup) state, standby (idle) state, talking state or other suitable state, this wireless terminal device all can see through system and method for the present invention to carry out the binding of radio wide area network or switches to radio wide area network from WLAN.
In sum; The method of wireless telecommunication system of the present invention and wireless terminal device connected network; But the assist wireless device switches to radio wide area network from WLAN soon; Effectively reduce wireless terminal device switches to radio wide area network from WLAN when dialing, standby or conversation mortality, reach the purpose that no seam (seamless) communication network is provided.
Claims (8)
1. wireless terminal device; Optionally link a radio wide area network and a WLAN; This radio wide area network comprises a plurality of first base stations; It is characterized in that this WLAN comprises one second base station in order to capture the information on services of these a plurality of first base stations, this wireless terminal device comprises:
First mixed-media network modules mixed-media optionally starts and close; And
Second mixed-media network modules mixed-media connects this second base station in order to access this WLAN and to receive this information on services;
Wherein close and this second mixed-media network modules mixed-media when opening when this first mixed-media network modules mixed-media; This wireless terminal device can start this first mixed-media network modules mixed-media according to a criterion; Make this first mixed-media network modules mixed-media in these a plurality of first base stations, select a servo base station to link, to access this radio wide area network according to this information on services;
Said criterion comprises: when the signal strength that is connected between this second mixed-media network modules mixed-media and this second base station is lower than duration that one first default value or this connection signal strength be lower than second default value during greater than a scheduled time, start first mixed-media network modules mixed-media; When being connected signal strength and being higher than one second default value between this second mixed-media network modules mixed-media and this second base station, close this first mixed-media network modules mixed-media.
2. wireless terminal device as claimed in claim 1 is characterized in that said second base station comprises one the 3rd wireless module, in order to capture the information on services of these a plurality of first base stations.
3. wireless terminal device as claimed in claim 1 is characterized in that said information on services comprises: the signal strength information of these first base stations, channel information and base station information of identification code.
4. wireless terminal device as claimed in claim 3; It is characterized in that when this servo base station of first mixed-media network modules mixed-media binding is failed; This first mixed-media network modules mixed-media scans the channel information in this information on services, searches the first suitable base station and replaces this servo base station.
5. wireless terminal device as claimed in claim 1; It is characterized in that said information on services comprises one first channel information and the one first signal strength information that is relevant to this servo base station, wherein the first signal strength information is signal strength soprano in these a plurality of first base stations.
6. wireless telecommunication system is characterized in that it comprises:
Radio wide area network comprises a plurality of first base stations;
WLAN comprises one of each these first base station of one second base station acquisition information on services; And
Wireless terminal device comprises first mixed-media network modules mixed-media and second mixed-media network modules mixed-media, and this first mixed-media network modules mixed-media system optionally starts and closes, and this second mixed-media network modules mixed-media is in order to connect this second base station, to access this line LAN and to receive this information on services;
Wherein close and second mixed-media network modules mixed-media when opening when first mixed-media network modules mixed-media; This wireless terminal device can start this first mixed-media network modules mixed-media according to a criterion; Make this first mixed-media network modules mixed-media one of select in these first base stations to connect, to access this radio wide area network according to this information on services as servo base station;
Said criterion comprises: when the signal strength that is connected between this second mixed-media network modules mixed-media and this second base station is lower than duration that one first default value or this connection signal strength be lower than second default value during greater than a scheduled time, start first mixed-media network modules mixed-media; When being connected signal strength and being higher than one second default value between this second mixed-media network modules mixed-media and this second base station, close this first mixed-media network modules mixed-media.
7. the method for a wireless terminal device connected network; This wireless terminal device connects a radio wide area network and a WLAN in order to selectivity; It is characterized in that this radio wide area network comprises a plurality of first base stations; This WLAN comprises second base station, and to capture an information on services of these a plurality of first base stations, this wireless terminal device comprises first mixed-media network modules mixed-media in order to connect this radio wide area network; And second mixed-media network modules mixed-media connect this second base station, this method comprises the following step:
(a) close and this second mixed-media network modules mixed-media when opening when this first mixed-media network modules mixed-media, start this first mixed-media network modules mixed-media according to a criterion;
(b) this second mixed-media network modules mixed-media receives this information on services according to this criterion from this second base station;
(c) this second mixed-media network modules mixed-media is sent to this first mixed-media network modules mixed-media with this information on services; And
(d) this first mixed-media network modules mixed-media selects a servo base station to connect according to this information on services from a plurality of first base stations, to access this radio wide area network;
Said criterion comprises: when the signal strength that is connected between this second mixed-media network modules mixed-media and this second base station is lower than duration that one first default value or this connection signal strength be lower than second default value during greater than a scheduled time, start first mixed-media network modules mixed-media; When being connected signal strength and being higher than one second default value between this second mixed-media network modules mixed-media and this second base station, close this first mixed-media network modules mixed-media.
8. the method for wireless terminal device connected network as claimed in claim 7 is characterized in that said step (b) further comprises the following step:
(b1) this second mixed-media network modules mixed-media requires signal to this second base station according to this criterion transmission one;
(b2) this second base station requires this information on services of contiguous first base station of signal capturing according to this; And
(b3) this second base station is back to this second mixed-media network modules mixed-media with this information on services.
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| CN101808386B (en) * | 2010-01-25 | 2012-08-22 | 深圳奥士达电子有限公司 | Wireless mobile device and wireless network connection method thereof |
| CN103079252B (en) * | 2011-10-26 | 2015-07-29 | 宏碁股份有限公司 | Portable wireless device sets up the method for network on-line |
| WO2017000147A1 (en) * | 2015-06-30 | 2017-01-05 | 深圳走天下科技有限公司 | Data transmission method and apparatus, and data reception method and apparatus |
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| CN1606891A (en) * | 2000-12-28 | 2005-04-13 | 讯宝科技公司 | Automatic seamless vertical roaming between WLANs and WWANs |
| CN1898984A (en) * | 2003-10-24 | 2007-01-17 | 高通股份有限公司 | Handoff between a wireless local area network and a cellular communication system |
| CN1665328A (en) * | 2005-03-18 | 2005-09-07 | 杭州斯达康通讯有限公司 | Dual-mode/multi-mode portable device and intelligent switching method thereof |
| CN1997189A (en) * | 2006-01-06 | 2007-07-11 | 鸿富锦精密工业（深圳）有限公司 | A method for dual-mode handset power management |
| WO2007130800A1 (en) * | 2006-04-20 | 2007-11-15 | Qualcomm Incorporated | Wireless handoffs between multiple networks |
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