CN201260226Y - Dual frequency terminal - Google Patents
Dual frequency terminal Download PDFInfo
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- CN201260226Y CN201260226Y CNU2008201344923U CN200820134492U CN201260226Y CN 201260226 Y CN201260226 Y CN 201260226Y CN U2008201344923 U CNU2008201344923 U CN U2008201344923U CN 200820134492 U CN200820134492 U CN 200820134492U CN 201260226 Y CN201260226 Y CN 201260226Y
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Abstract
The utility model discloses a dual-frequency terminal. The terminal comprises: a first radio-frequency module for searching signal of a first frequency-band network; a second radio-frequency module for searching the signal of a second frequency-band network; a base-band module for processing the output signal of a radio-frequency module; a switch module for connecting the base-band module with the first or the second radio-frequency module; and a network accessing module for directing the dual-frequency terminal to access into a network which corresponds to the first or the second radio-frequency module. The terminal further comprises a switch control module for directing the switch module to connect the base-band module with different radio-frequency modules and for directing the connected radio-frequency module to start network searching; after executing the switching, if the network signal is searched and the quality of the signal is higher than the specified threshold, the terminal is accessed into the corresponding network. By utilizing the dual-frequency terminal, the switching between networks of different frequency bands is realized, thus utilizing the advantages of networks with different frequency bands.
Description
Technical field
The utility model relates to the communications field, relates in particular to a kind of dual band terminal.
Background technology
The network---450M cdma network and the 800M cdma network that comprise two kinds of frequency ranges in present CDMA (Code Division Multiple Access, the code division multiple access inserts) network.
800M cdma network coverage is wider, has accomplished that at present the whole nation covers, but from far-off regions because the base station equipment of disposing is few at some, the network data mass ratio that the user receives by the 800M cdma network is relatively poor.The cdma network of 450M replenishes as a kind of, mostly be deployed in some remote districts, do not form a national connected network, coverage is narrower, in the scope of its covering, the network data mass ratio is better, and in a single day the user leaves the network's coverage area of 450M, just can not obtain the service of mobile communication.
Present portable terminal can only be supported a kind of network (800M cdma network or 450MCDMA network) of frequency range, thereby can not take into account the advantage of these two kinds of networks.
The utility model content
The utility model embodiment provides a kind of dual band terminal, switches to be implemented between the different frequency range network, thereby takes into account the advantage of different frequency range network.
The dual band terminal that the utility model embodiment provides comprises:
First radio-frequency module is used to search for the signal of the first frequency range network;
Second radio-frequency module is used to search for the signal of the second frequency range network;
Baseband module is used to receive and handle the network signal that current first or second radio-frequency module that is connected with this baseband module is searched for;
The diverter switch module is used for switching indication according to switch, and baseband module is connected with the current radio-frequency module disconnection that is connected and with another radio-frequency module;
The switching controls module is used for switching indication to described diverter switch module output switch, and indicates the radio-frequency module by current connection to carry out web search; Also be used for after described diverter switch module is carried out switch and switched indication, search network signal and signal quality when being higher than prescribed limit at the radio-frequency module of current connection, output network inserts indication;
Network access module is used for the network insertion indication according to described switching controls module, and dual band terminal is linked into the frequency range network corresponding with the radio-frequency module of current connection.
In the foregoing description of the present utility model, comprise two cover radio-frequency modules and the diverter switch module that the selection of radio-frequency module and baseband module is connected in the dual band terminal, be connected with baseband module by the different radio-frequency module of switching controls module indication, to realize the internetwork search of different frequency range, thereby when searching network signal or searching network signal and signal quality is higher than when setting limit, insert the network of this frequency range, be implemented between the different frequency range network and switch, thereby taken into account the advantage of different frequency range network aspect coverage and signal quality.
Description of drawings
Fig. 1 is the structural representation of dual band terminal among the utility model embodiment;
Fig. 2 is the baseband module and the radio-frequency module connection diagram of the dual band terminal among the utility model embodiment;
Fig. 3 A, Fig. 3 B are the structural representation of switching controls module among the utility model embodiment;
Fig. 4 selects flow through a network figure when starting shooting for user among the utility model embodiment;
Fig. 5 is the flow chart that holding state is manually selected network down among the utility model embodiment;
Fig. 6 is the flow chart that holding state is selected network down automatically among the utility model embodiment;
Fig. 7 calls out among the utility model embodiment to discharge the flow chart that network is selected in the back.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Referring to Fig. 1, dual band terminal structure chart for the utility model embodiment, different with dual band terminal of the prior art is, the dual band terminal that the utility model embodiment provides comprises 2 cover radio-frequency modules, with realization signal is modulated to the network of different frequency ranges respectively, and the diverter switch module and the control module thereof that are used between 2 cover radio-frequency modules, switching connection.As shown in Figure 1, the Anneta module 7 that this dual band terminal mainly comprises baseband module 1, the diverter switch module 2 that is connected with baseband module 1, selects the radio-frequency module 4 that is connected and radio-frequency module 5, the Anneta module 6 that is connected with radio-frequency module 4, is connected with radio-frequency module 5 with diverter switch module 2, and switching controls module 3 and network access module 8, also comprise other peripheral functional modules, as, (not illustrating in the drawings) such as transmitter, receiver, keyboard, displays.Wherein, radio-frequency module 4 and radio-frequency module 5 modulate the signal to the network of different frequency ranges respectively, and in the present embodiment, radio-frequency module 4 modulates the signal to the 450M cdma network, and radio-frequency module 5 modulates the signal to the 800MCDMA network.
Anneta module 6 is used to receive the data of 450M cdma network and transfers to radio-frequency module 4, and the data of received RF module 4 transmission also send to the 450M cdma network;
Anneta module 7 is used to receive the data of 800M cdma network and transfers to radio-frequency module 5, and the data of received RF module 5 transmission also send to the 800M cdma network.Anneta module (6,7) comprises antenna-matching circuit unit, duplexer etc., and duplexer is divided into signal reception and sends part, and duplexer will be received and dispatched the radiofrequency signal isolation, to reduce the phase mutual interference;
Radio-frequency module 4 is used for receiving data from baseband module 1, carries out forming the data-signal of 450M cdma network and the Anneta module 6 that is transferred to after the radio frequency processing such as Channel Modulation; And, from carrying out exporting to baseband module 1 after the radio frequency processing such as channel demodulation after Anneta module 6 receives data (comprising the network signal that searches);
Radio-frequency module 5 is used for receiving data from baseband module 1, carries out forming the data-signal of 800M cdma network and being transferred to Anneta module 7 after the radio frequency processing such as Channel Modulation; And, from carrying out exporting to baseband module 1 after the radio frequency processing such as channel demodulation after Anneta module 7 receives data (comprising the network signal that searches);
Baseband module 1 is used for the data that received RF module 4 or radio-frequency module 5 transmit, and carries out sending to other peripheral functional modules after the Base-Band Processing (as demodulation, decoding etc.); And, receive data (comprising voice data) and carry out offering radio-frequency module 4 or radio-frequency module 5 after the Base-Band Processing (as coding, modulation etc.) from other peripheral functional modules;
Fig. 2 has provided the connection diagram of baseband module and radio-frequency module among the utility model embodiment, and wherein, radio-frequency module 4 or radio-frequency module 5 are connected with baseband module 1 by diverter switch module 2.As shown in the figure:
Baseband module 1 is mainly by central control circuit unit, memory circuit cells, display circuit unit, voicefrequency circuit unit, ringing circuit unit, keyboard circuit unit, power supply circuits unit and interface circuit unit, wherein:
The central control circuit unit is the core interface unit of dual band terminal, RF is provided (Radio Frequency, radio frequency) and the control of baseband portion interface (as Rx interface among Fig. 2 and Rt interface) and signal, voicefrequency circuit unit, memory interface etc., (be chip manufacturer: MSM6000 chip high pass) or MSM6025 chip are realized can to adopt QUALCOMM.Comprise CDMA processor, digital audio amplifier, general A/D conversion circuit unit, ARM7TDMI microprocessor in the MSM6000/MSM6025 chip, and support forward direction and the data communication of reverse link sync peaks and High Speed UART and USB interface.In the present embodiment, dual band terminal is realized the good support to the data business if desired, then can adopt the MSM6025 chip, if dual band terminal is lower and the data business do not had special requirement to cost requirement, then can adopt the MSM6000 chip.The CDMA processor of MSM6000/MSM6025 chip is carried out the digital modulation and demodulation function of 3G 1X CDMA IS2000 completely.Modulated process comprises convolutional encoding, interweaves, quadrature modulation, direct sequence long code spread spectrum, baseband filtering etc., finally provides i/q signal to radio-frequency module.Demodulating process comprises RAKE receiver processing, correlation demodulation, deinterleaves, Viterbi decoding etc., finally offers the vocoder digital audio signal and provides data message to other peripheral hardware.
Radio-frequency module 5 can adopt RFR6122 chip+RFT6122 chip, wherein, the signal that receives from Anneta module 7, enter the low noise amplifier of RFR6122 chip by duplexer filtering selective reception, directly downconvert to baseband signal, generate I, Q two-way analog signal, enter the MSM6000/MSM6025 chip and carry out further demodulation, finish reception 800M CDAM signal; Again by RFT6122 chip, Tx RF-SAW radio-frequency filter, power amplifier CX77105, and the emission to the 800MCDMA signal is finished in burst mode/PA-ON control circuit unit and power-sensing circuit unit.
Radio-frequency module 4 can adopt RFR6170 chip+RFT6170 chip, wherein, the signal that receives from Anneta module 6, enter the low noise amplifier of RFR6170 chip by duplexer filtering selective reception, directly downconvert to baseband signal, generate I, Q two-way analog signal, enter the MSM6000/MSM6025 chip and carry out further demodulation, finish reception 450M CDAM signal; By RFT6170 chip, Tx RF-SAW radio-frequency filter, power amplifier CX77105, and the emission to 450M CDMA signal is finished in burst mode/PA-ON control circuit unit and power-sensing circuit unit.
The switching controls module 3 of above-mentioned dual band terminal can be passed through control its switch module 2 and network access module 8, and dual band terminal is switched between the different frequency range network.The structural representation of switching controls module 3 can be shown in Fig. 3 A, Fig. 3 B.
Referring to Fig. 3 A, be the structural representation of switching controls module 3.Switching controls module 3 comprises receiving element 31, judging unit 32 and output unit 33, wherein:
Receiving element 31 is used under the dual band terminal holding state, receives the signal of the current place of the dual band terminal network that searches from baseband module 1, dual band terminal in real time (as according to setting-up time or cycle) carry out web search;
Output unit 33 is used for not receiving network signal when receiving element 31, is perhaps receiving under the situation of network signal, when signal quality is lower than prescribed limit, switch indication to diverter switch module 2 output switches, and the indication dual band terminal carries out web search; After dual band terminal moves according to switch switching indication, receiving element 31 receives network signal by the radio-frequency module of current connection, or receiving under the situation of network signal, when signal quality is higher than prescribed limit, insert indication to network access module 8 output networks.
When dual band terminal carries out web search, the current radio-frequency module that is connected with baseband module 1 through diverter switch module 2 is by its Anneta module search network signal, if search network signal, then, send to the receiving element 31 of switching controls module 3 with after its processing by radio-frequency module and baseband module 1.
After diverter switch module 2 receives switch switching indication, baseband module 1 is disconnected, is connected with another radio-frequency module with the current radio-frequency module that is connected; Network access module 8 is linked into and the pairing network of the network signal that searches (being the corresponding network of radio-frequency module of baseband module 1 current connection) after receiving the network insertion indication.
Further, when dual band terminal start (being that dual band terminal powers on), output unit 33 can be according to the configuration information of the first search network that sets in advance, the output switch connects indication, control its switch module 2 radio-frequency module that baseband module 1 is corresponding with the network of first search connects, and indication is carried out the search of network signal by this radio-frequency module that is connected with baseband module 1.Output unit 33 can also be exported switch and connect indication behind the dual band terminal call release, control its switch module 2 radio-frequency module that baseband module 1 is corresponding with the network that service is provided for this calling connects, and indication is carried out the search of network signal by this radio-frequency module that is connected with baseband module 1.This output unit 33 is after dual band terminal moves according to switch connection indication, and receiving element 31 receives network signal, or is receiving under the situation of network signal, and signal quality is higher than prescribed limit, then inserts indication to network access module 8 output networks; After dual band terminal moves according to switch connection indication, receiving element 31 does not receive network signal, is perhaps receiving under the situation of network signal, when signal quality is lower than prescribed limit, switch indication to diverter switch module 2 output switches, and the indication dual band terminal carries out web search; After dual band terminal switched the indication action according to switch, receiving element 31 received network signal, or is receiving under the situation of network signal, when signal quality is higher than prescribed limit, inserted indication to network access module 8 output networks.
Referring to Fig. 3 B, structural representation for the another kind of switching controls module of the utility model embodiment, this module comprises input unit 34, receiving element 31, judging unit 32, output unit 35, can realize carrying out change action according to the commands for controlling diverter switch module 2 of user's input by this switching controls module.Wherein:
Switching controls module shown in above-mentioned Fig. 3 A and Fig. 3 B also can unite two into one, promptly, the function of output unit 33 is integrated in the output unit 35, thereby realize both can under the dual band terminal ideal case, carrying out change action, also can switch indication control its switch module 2 according to the network of user's input and carry out change action based on the automatic control its switch module 2 of this terminal network Search Results.
Switching controls module shown in above-mentioned Fig. 3 A, Fig. 3 B can realize by software.Among the utility model embodiment, the realization of switching controls module is adopted the operating mechanism of REX+DMSS6000/6025+BREW (vedio on radio binary operation environment) based on DMSS 6000/6025 chip.In the also configurable central control circuit unit of switching controls module (MSM6000/MSM6025 chip) in baseband module 1, utilize the GPIO signal controlling diverter switch module 2 of central control circuit unit output to connect or change action, as, represent to indicate 2 connections of diverter switch module when the GPIO signal is high or switch to radio-frequency module 4, represent to indicate 2 connections of diverter switch module when the GPIO signal is low or switch to radio-frequency module 5.
The dual band terminal of the utility model embodiment can be on the basis of matured product, adopt the framework of above-mentioned switching controls module the software-driven support to be provided, to revise agreement and master control design cycle at radio frequency part, switch thereby be implemented between the different frequency range network.
As shown in Figure 4, be dual band terminal network selecting flow process when the user starts shooting that the utility model embodiment describes, when the user starts shooting, carry out following steps:
In this step, set in advance the information of the network of search when starting shooting in the dual band terminal, and the network of which frequency range of first search can be set.As, the priority of the network information of configuration is 800MCDMA network, 450M cdma network from high to low.Because the 800M cdma network is big with respect to the coverage of 450M cdma network, acquiescence first search 800M cdma network in the present embodiment.
After the dual band terminal start, switching controls module 3 is according to the 800MCDMA network of the first search of configuration information appointment, indication diverter switch module 2 is connected to the radio-frequency module corresponding with this network 5, carries out network sweep search 800M cdma network signal by radio-frequency module 5.
Can step 410, dual band terminal are judged search the high network of priority preset; If can, then execution in step 440; If can not, then execution in step 420.
In this step, the switching controls module 3 of dual band terminal judges that search is less than 800M cdma network (promptly searching for less than network signal), then control its switch module 2 is connected to the radio-frequency module corresponding with the 450M cdma network 4, carries out network sweep search 450M cdma network signal by radio-frequency module 4.
Can step 430, dual band terminal judge the network that search other frequency range, if can, then execution in step 440; Otherwise execution in step 420 promptly continues to search for the network of other frequency range, will continue search 800M cdma network in the present embodiment.
Generally, have at least a network to search in 450M cdma network and the 800M cdma network, if do not search, then search for the network of two frequency ranges repeatedly, till searching or stop search (reach the searching times of setting and stop) according to above-mentioned flow process.
As shown in Figure 5, the dual band terminal that provides for the utility model embodiment is manually selected the flow process of network under holding state, may further comprise the steps:
In this step, the switching controls module 3 of dual band terminal is according to the order that receives, and indication diverter switch module 2 is connected to the radio-frequency module corresponding with the 450M cdma network 4, carries out network sweep search 450M cdma network by radio-frequency module 4.In network search procedure, can show the information of " searching for new network " on the dual band terminal screen.
Can step 520, dual band terminal are judged successfully search the 450M cdma network, if can, then execution in step 530; Otherwise, execution in step 540.
In this step, dual band terminal can be after repeatedly searching for the 450M cdma network and all failing, or in setting duration after the failure of search 450M cdma network, execution in step 540.
In this step, after dual band terminal searches the 450M cdma network, can point out the user " to search for new network success ".The network access module 8 of dual band terminal carries out network according to the switching indication of switching controls module 3 and switches.Before switching to the 450M cdma network, current 800M cdma network carries out shutdown process earlier, so that withdraw from from current 800M cdma network, be connected to the 450M cdma network then, the Signalling exchange flow process in the shutdown process between dual band terminal and the current network is identical with the standard shutdown process of this carrier frequency.
In this step, the switching controls module 3 judgement search of dual band terminal are then indicated diverter switch module 2 to be connected to the radio-frequency module corresponding with the 800M cdma network 5, thereby are still communicated under the 800M cdma network less than the 450M cdma network.
As shown in Figure 6, the dual band terminal that provides for the utility model embodiment is selected the flow process of network automatically under holding state, may further comprise the steps:
In order further to guarantee the user's communications quality, also can be to the network signal quality prescribed limit, dual band terminal when the quality of the network signal that judgement searches is lower than this prescribed limit, is then searched for the network signal of another frequency range according to web search results.Such as: the sensitivity of terminal being-106dBm, the intensity data that receives when terminal is lower than-and during 100dBm, dual band terminal is carried out the web search of another frequency range, herein-100dBm is exactly so-called prescribed limit.
In this step, the switching controls module 3 of dual band terminal judges that search is lower than when setting limit less than current 800MCDMA network signal or the network signal quality that searches, indication diverter switch module 2 is connected to the radio-frequency module corresponding with the 450M cdma network 4, carries out network sweep search 450M cdma network by radio-frequency module 4.
In this step, dual band terminal can be after repeatedly searching for the 450M cdma network and all failing, or in setting duration after the failure of search 450M cdma network, execution in step 640.
In this step, the switching controls module 3 judgement search of dual band terminal are then indicated diverter switch module 2 to be connected to the radio-frequency module corresponding with the 800M cdma network 5, thereby are still communicated under the 800M cdma network less than the 450M cdma network.
In this step, the network access module 8 of dual band terminal carries out network according to the switching indication of switching controls module 3 and switches.Dual band terminal was carried out shutdown process earlier before current 800M cdma network switches to the 450M cdma network, so that withdraw from from current 800M cdma network, be connected to the 450MCDMA network then, the Signalling exchange flow process in the shutdown process between dual band terminal and the current network is identical with the standard shutdown process of this carrier frequency.
As shown in Figure 7, the dual band terminal that provides for the utility model embodiment may further comprise the steps in the flow process of calling out the network selecting after discharging:
In this step, dual band terminal is determined to after this calling provides the network of service to be the 450M cdma network, be connected to radio-frequency module 4 by switching controls module 3 indication diverter switch modules 2, carry out network sweep search 450M cdma network signal by radio-frequency module 4.
Can step 710, dual band terminal are judged search this network; If can, then execution in step 740; If can not, then execution in step 720.
In this step, the switching controls module 3 of dual band terminal judges that search is less than the 450M cdma network, then indicate diverter switch module 2 to be connected to the radio-frequency module corresponding 5, carry out network sweep search 8000M cdma network signal by radio-frequency module 5 with the 800M cdma network.
Can step 730, dual band terminal judge the network that search other frequency range, if can, then execution in step 740; Otherwise execution in step 720 promptly continues to search for the network of other frequency range, will continue search 450M cdma network in the present embodiment.
In sum, the utility model embodiment is by being provided with two radio-frequency modules on dual band terminal, handle the radiofrequency signal of 800M CDMA and 450M CDMA respectively, and the form by electronic switch, carry out two switchings between frequency range according to different application scenarios, realized the CDMA terminal equipment of a terminal support 800M/450M frequency range, thereby solved because a terminal is only supported the inconvenience that a frequency range is brought, make 450M CDMA user when leaving the network area of 450M, to switch to 800MCDMA network coverage area preferably; Simultaneously also can make the user of CDMA800M switch to the good 450M cdma network carrier frequency of local networks resource in some second-rate remote districts of the network coverage, overcome the defective that user in the prior art can not well enjoy communication service.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (10)
1, a kind of dual band terminal is characterized in that, comprising:
First radio-frequency module is used to search for the signal of the first frequency range network;
Second radio-frequency module is used to search for the signal of the second frequency range network;
Baseband module is used to receive and handle the network signal that current first or second radio-frequency module that is connected with this baseband module is searched for;
The diverter switch module is used for switching indication according to switch, and baseband module is connected with the current radio-frequency module disconnection that is connected and with another radio-frequency module;
The switching controls module is used for switching indication to described diverter switch module output switch, and indicates the radio-frequency module by current connection to carry out web search; Also be used for after described diverter switch module is carried out switch and switched indication, search network signal and signal quality when being higher than prescribed limit at the radio-frequency module of current connection, output network inserts indication;
Network access module is used for the network insertion indication according to described switching controls module, and dual band terminal is linked into the frequency range network corresponding with the radio-frequency module of current connection.
2, dual band terminal as claimed in claim 1 is characterized in that, described switching controls module comprises:
First receiving element is used for when described dual band terminal standby, receives the network signal of searching for by the radio-frequency module of current connection;
Judging unit be used to judge whether to receive network signal, and whether the quality of the network signal that receives is higher than prescribed limit;
First output unit is used for when described judgment unit judges is higher than prescribed limit for receiving network signal and signal quality, and output network inserts indication; Otherwise the output switch switches indication.
3, dual band terminal as claimed in claim 2 is characterized in that, described switching controls module also comprises input unit;
Described input unit is used for when described dual band terminal standby, and the network that receives user's input switches indication;
Described first output unit is further used for, the network that receives according to described input unit switches indication output switch and switches indication, indicate the radio-frequency module disconnection that baseband module is corresponding with the current place of described dual band terminal frequency range network and is connected with another radio-frequency module;
Described diverter switch module is further used for, and operates according to the described switch switching indication of described first output unit.
4, dual band terminal as claimed in claim 1 is characterized in that, described switching controls module comprises:
Input unit is used for when described dual band terminal standby, and the network that receives user's input switches indication;
Second output unit, the network that is used for receiving according to described input unit switches indication output switch and switches indication, the indication radio-frequency module that baseband module is corresponding with the current place of described dual band terminal frequency range network disconnects and is connected with another radio-frequency module, and after described diverter switch module is carried out described switch switching indication, judge and receive network signal that the radio-frequency module by current connection searches and signal quality when being higher than prescribed limit, then output network inserts indication; Otherwise the output switch switches indication;
Second receiving element is used for receiving the network signal by the radio-frequency module search of current connection after described diverter switch module is carried out the switch switching indication of described second output unit;
Judging unit be used to judge whether to receive network signal, and whether the quality of the network signal that receives is higher than prescribed limit.
5, as claim 2 or 3 or 4 described dual band terminals, it is characterized in that, described first or second output unit is further used for, after described diverter switch module is carried out described switch switching indication, do not receive network signal or receive network signal but signal quality when being lower than prescribed limit from the radio-frequency module of current connection in the regulation duration, the output switch switches indication.
6, as claim 2 or 3 or 4 described dual band terminals, it is characterized in that, described first or second output unit is further used for, when described dual band terminal is started shooting, frequency range network output switch according to preassigned first search connects indication, the indication radio-frequency module that baseband module is corresponding with the frequency range network of first search connects, and indication is carried out web search by the radio-frequency module that connects; After carrying out switch connection indication, radio-frequency module by current connection searches network signal or searches network signal and signal quality when being higher than prescribed limit, output network inserts indication, otherwise the output switch switches indication, and indication is carried out web search by the radio-frequency module that is connected to; After carrying out switch and switching indication, the radio-frequency module of current connection searches network signal or searches network signal and signal quality when being higher than prescribed limit, and output network inserts indication.
7, as claim 2 or 3 or 4 described dual band terminals, it is characterized in that, described first or second output module is further used for, the output switch connects indication behind described dual band terminal call release, indication is connected baseband module with the pairing radio-frequency module of network that service is provided for described calling, and indicates the radio-frequency module by current connection to carry out web search; After carrying out switch connection indication, the radio-frequency module of current connection searches network signal or searches network signal and signal quality when being higher than prescribed limit, output network inserts indication, otherwise the output switch switches indication, and indication is carried out web search by the radio-frequency module that is connected to; After carrying out switch and switching indication, the radio-frequency module of current connection searches network signal or searches network signal and signal quality when being higher than prescribed limit, and output network inserts indication.
8, dual band terminal as claimed in claim 1 or 2 is characterized in that, described switching controls module is further used for, and exports described switch to described baseband module and switches indication;
Described baseband module is further used for, and switches the central control circuit unit output control signal corresponding of indication by baseband module according to the switch that receives;
Described diverter switch module is further used for, and according to the described control signal that receives from described baseband module baseband module is connected with the current radio-frequency module disconnection that is connected and with another radio-frequency module.
9, as claim 1 or 2 or 3 or 4 described dual band terminals, it is characterized in that described diverter switch module is an electronic switch.
10, dual band terminal as claimed in claim 1, it is characterized in that, described first radio-frequency module and described second radio-frequency module be respectively with the code division multiple access of 450M frequency range insert the corresponding radio-frequency module of cdma network and with the corresponding radio-frequency module of the cdma network of 800M frequency range in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201344923U CN201260226Y (en) | 2008-08-21 | 2008-08-21 | Dual frequency terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201344923U CN201260226Y (en) | 2008-08-21 | 2008-08-21 | Dual frequency terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201260226Y true CN201260226Y (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201344923U Expired - Fee Related CN201260226Y (en) | 2008-08-21 | 2008-08-21 | Dual frequency terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024828A (en) * | 2015-07-31 | 2015-11-04 | 国家电网公司 | Baseband module based on DSP (Digital Signal Process) |
| WO2016065758A1 (en) * | 2014-10-29 | 2016-05-06 | 小米科技有限责任公司 | Communication method and apparatus |
| US9723639B2 (en) | 2014-10-29 | 2017-08-01 | Xiaomi Inc. | Communication method and terminal |
| CN112367691A (en) * | 2020-10-30 | 2021-02-12 | 重庆芯讯通无线科技有限公司 | LoRA-integrated multimode communication module, communication control method and electronic equipment |
-
2008
- 2008-08-21 CN CNU2008201344923U patent/CN201260226Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016065758A1 (en) * | 2014-10-29 | 2016-05-06 | 小米科技有限责任公司 | Communication method and apparatus |
| RU2604514C2 (en) * | 2014-10-29 | 2016-12-10 | Сяоми Инк. | Communication method and terminal |
| US9723639B2 (en) | 2014-10-29 | 2017-08-01 | Xiaomi Inc. | Communication method and terminal |
| CN105024828A (en) * | 2015-07-31 | 2015-11-04 | 国家电网公司 | Baseband module based on DSP (Digital Signal Process) |
| CN105024828B (en) * | 2015-07-31 | 2018-04-24 | 国家电网公司 | Baseband module based on DSP |
| CN112367691A (en) * | 2020-10-30 | 2021-02-12 | 重庆芯讯通无线科技有限公司 | LoRA-integrated multimode communication module, communication control method and electronic equipment |
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