CN1551658B - Mobile communication terminal supporting three pattern communication mode - Google Patents
Mobile communication terminal supporting three pattern communication mode Download PDFInfo
- Publication number
- CN1551658B CN1551658B CN031601103A CN03160110A CN1551658B CN 1551658 B CN1551658 B CN 1551658B CN 031601103 A CN031601103 A CN 031601103A CN 03160110 A CN03160110 A CN 03160110A CN 1551658 B CN1551658 B CN 1551658B
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- gprs
- gsm
- scdma
- emission
- signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A mobile terminal for supporting GSM (Global System for Mobile Communications)/GPRS (General Packet Radio Service) and TD-SCDMA (Time Division-Synchronous Code Division Multiple Access). A reception GSM/GPRS RF module supports an RF mode of a GSM signal inputted through an antenna. A reception TD-SCDMA RF module supports an RF mode of a TD-SCDMA signal inputted through the antenna. A transmissionGSM/GPRS RF module supports an RF mode for a baseband signal of GSM/GPRS inputted from a modem chip. A transmission TD-SCDMA RF module supports an RF mode for a baseband signal of TD-SCDMA inputted from the modem chip. An SP4T (Single Pole 4 Throw) switch switches a signal received through the antenna according to the GSM/GPRS and TD-SCDMA mode in a reception mode, and outputs an RF-processed transmission signal through the antenna according to the GSM/GPRS and TD-SCDMA mode in a transmission mode. An SPDT (Single Pole Double Throw) switch switches the RF-processed transmission signal accordingto the GSM/GPRS and TD-SCDMA mode in the transmission mode.
Description
Technical field
The present invention relates to a kind of mobile communication terminal, especially a kind of mobile communication terminal of supporting GSM/GPRS and TD-SCDM, it can reduce the accessory number in compatible multimode, dwindle the whole big or small of terminal by dwindling the PCB design space.
Background technology
The trend of portable terminal is in compatible multimode (multimode) more than 2, realizes the miniaturization of terminal size, and this is a kind of global trend.
At present in multimode terminal, developed the mobile communication terminal of using three moulds (Triple Mode), the mobile communication terminal kind of above-mentioned application three moulds is more, such as using GSM (GlobalSystem for Mobile Communications-global system for mobile communications)/GPRS (GeneralPacket Radio Service-GPRS), WCDMA (Wideband CodeDivision Multiple Access-wideband code division location), CDMA-2000, use the sinotype 3G terminal of TD-SCDMA (Time Division-Synchronous Code Divion Multiple Access-TD SDMA) etc.
Wherein, as shown in Figure 1, in the side of terminal, can see the Frequency Distribution zone of GSM/GPRS and TD-SCDMA, for said GSM/GPRS, the emission that is called as EGSM receives and has distributed the 35MHz frequency band respectively, and the emission that is called as DCS receives and distributed the 75MHz frequency band respectively.
For above-mentioned TD-SCDMA, be to distribute the above frequency band of 55MHz in China at present, use identical emission receive frequency in the TDD mode that is different from GSM/GPRS, so the emission frequency acceptance band does not separate.
For should terminal in two ways, antenna be shared, for the signal that is received by antenna is separated, use switch etc., but this has just increased accessory, the increase meeting of accessory is when the RF of design terminal part, increase and insert loss, reduce the efficient and the receiving sensitivity of transmitting power.
And the increase of accessory guarantees that the PCB space brings certain difficulty during not only to Terminal Design, and has increased expense, also production efficiency and failure rate is produced harmful effect.
Therefore, as shown in Figure 2, the RF of terminal partly carry out chip-scaleization, made RF receiver module (1) and RF transmitter module (2) (CASE2), or the RF transmitter module (2) of having made the power amplifier (3) that comprises emission part (CASE1).
But, because the accessory before from above-mentioned power amplifier rear end to low power amplifier is made of passive component, be difficult to make the IC form, therefore have a kind of like this problem, insertion loss before promptly from the power amplifier rear end of transmitting terminal to antenna and the insertion loss from the antenna of receiving terminal to the low noise amplifier front end can reduce receiving sensitivity and transmit power efficiency.
Summary of the invention
The present invention proposes just in view of the above problems, its purpose is to provide a kind of support GSM/GPRS and TD-SCDMA mobile communication terminal, so that can reduce the accessory number in compatible multimode, by dwindling the PCB design space, reduce the whole size of terminal greatly.
And, its purpose also is to provide a kind of support GSM/GPRS and TD-SCDMA mobile communication terminal, when it can be launched under the GSM/GPRS pattern, utilize biasing PLL structure to realize the bandpass filtering function, thereby reduce to become the RF front end and insertion loss of the low reason of terminal RF performance.
For achieving the above object, feature of the present invention is to support at the same time to be made of following several sections in the mobile communication terminal of GSM/GPRS and TD-SCDMA: receive GSM/GPRS RF device, in order to support the RF pattern by the GSM/GPRS signal of antenna input; Receive TD-SCDMA RF device, in order to support RF pattern by the TD-SCDMA signal of antenna input; Emission GSM/GPRS RF device is in order to support the RF pattern by the GSM/GPRS baseband signal of modem chip input; Emission TD-SCDMA RF device is in order to support the RF pattern by the TD-SCDMA baseband signal of modem chip input; The SP4T switch when being receiving mode, is pressed GSM/GPRS and TD-SCDMA mode switch by the signal that antenna receives, and when being emission mode, switches according to GSM/GPRS and TD-SCDMA pattern, makes through transmitting of RF processing and exports by antenna; The SPDT switch when being emission mode, according to GSM/GPRS and TD-SCDMA pattern, switches through transmitting that RF handles.
For achieving the above object, another feature of the present invention is to support at the same time in the mobile communication terminal of GSM/GPRS and TD-SCDMA, constitute by following several sections: receive GSM/GPRS/TD-SCDMA RF device, in order to support by the GSM/GPRS signal of antenna input and the RF pattern of TD-SCDMA signal; Emission GSM/GPRS/TD-SCDMA RF device is in order to support the RF pattern by the GSM/GPRS/TD-SCDMA baseband signal of modem chip input; The SP4T switch when being receiving mode, is pressed GSM/GPRS and TD-SCDMA mode switch by the signal that antenna receives, and when being emission mode, switches according to GSM/GPRS and TD-SCDMA pattern, makes through transmitting of RF processing and exports by antenna; The SPDT switch when being emission mode, according to GSM/GPRS and TD-SCDMA pattern, switches through transmitting that RF handles.
For achieving the above object, another feature of the present invention is to support at the same time in the mobile communication terminal of GSM/GPRS and TD-SCDMA, be made of following several sections: emission receives GSM/GPRS RF device, in order to support the RF pattern by the GSM/GPRS signal of antenna or modem chip input; Emission receives TD-SCDMA RF device, in order to support the RF pattern by the TD-SCDMA signal of antenna or modem chip input; The SP4T switch when being receiving mode, is pressed GSM/GPRS and TD-SCDMA mode switch by the signal that antenna receives, and when being emission mode, switches according to GSM/GPRS and TD-SCDMA pattern, makes through transmitting of RF processing and exports by antenna; The SPDT switch when being emission mode, according to GSM/GPRS and TD-SCDMA pattern, switches through transmitting that RF handles.
For achieving the above object, another feature of the present invention is to support at the same time in the mobile communication terminal of GSM/GPRS and TD-SCDMA, be made of following several sections: emission receives GSM/GPRS/TD-SCDMA RF device, in order to support by antenna or the GSM/GPRS of modem chip input and the RF pattern of TD-SCDMA signal; The SP4T switch when being receiving mode, is pressed GSM/GPRS and TD-SCDMA mode switch by the signal that antenna receives, and when being emission mode, switches according to GSM/GPRS and TD-SCDMA pattern, makes through transmitting of RF processing and exports by antenna; The SPDT switch when being emission mode, according to GSM/GPRS and TD-SCDMA pattern, switches through transmitting that RF handles.
Description of drawings
Fig. 1 is the Frequency Distribution location drawing of GSM/GPRS and TD-SCDMA.
Fig. 2 is the concise and to the point pie graph of the mobile communication terminal of the support TD-SCDMA under the general single-mode.
Fig. 3 is the concise and to the point pie graph of an embodiment of the present invention's mobile communication terminal of supporting GSM/GPRS and TD-SCDMA.
Fig. 4 is the concise and to the point pie graph of an embodiment of the present invention's mobile communication terminal of supporting GSM/GPRS and TD-SCDMA.
Fig. 5 is the concise and to the point pie graph of an embodiment of the present invention's mobile communication terminal of supporting GSM/GPRS and TD-SCDMA.
Fig. 6 is the concise and to the point pie graph of an embodiment of the present invention's mobile communication terminal of supporting GSM/GPRS and TD-SCDMA.
Embodiment
With reference to the accompanying drawings, describe effect and the effect that the present invention supports the mobile communication terminal of GSM/GPRS/TD-SCDMA in detail.
Fig. 3 is the concise and to the point pie graph of an embodiment of the present invention's mobile communication terminal of supporting GSM/GPRS/TD-SCDMA, it is made of following several sections: receive GSM/GPRS RF device (20), in order to support the RF pattern by the GSM/GPRS signal of antenna input; Receive TD-SCDMA RF device (40), in order to support RF pattern by the TD-SCDMA signal of antenna input; Emission GSM/GPRS RF device (30) is in order to support the RF pattern by the GSM/GPRS baseband signal of modem chip (10) input; Emission TD-SCDMA RF device (50) is in order to support the RF pattern by the TD-SCDMA baseband signal of modem chip (10) input; The SP4T switch when being receiving mode, is pressed GSM/GPRS and TD-SCDMA mode switch by the signal that antenna receives, and when being emission mode, switches according to GSM/GPRS and TD-SCDMA pattern, makes through transmitting of RF processing and exports by antenna; The SPDT switch when being emission mode, according to GSM/GPRS and TD-SCDMA pattern, switches through transmitting that RF handles.Below, respectively with regard to receiving mode and emission mode, illustrate that the emission of the invention described above receives change action.
At first, according to receiving mode or emission mode and GSM/GPRS and TD-SCDMA pattern, switch above-mentioned SPDT switch.
During reception, GSM pattern in this way, then the SP4T switch switches to GSM RX path one side, the signal that receives by antenna is linked into reception GSM/GPRS RF module (20) by the passband bandpass filter, therefore, above-mentioned reception GSM/GPRS RF module (20) is carried out the RF signal processing to above-mentioned received signal, inserts modem chip (10) with the baseband signal form.
In addition, GPRS pattern in this way, then the SP4T switch switches to GPRS RX path one side, the signal that receives by antenna is linked into reception GSM/GPRS RF module (20) by the passband bandpass filter, therefore, above-mentioned reception GSM/GPRS RF module (20) is carried out the RF signal processing to above-mentioned received signal, inserts modem chip (10) with the baseband signal form.
In addition, TD-SCDMA pattern in this way, then the SP4T switch switches to TD-SCDMA RX path one side, the signal that receives by antenna is linked into reception TD-SCDMA RF module (40) by band pass filter, therefore, above-mentioned reception TD-SCDMA RF module (40) is carried out the RF signal processing to above-mentioned received signal, inserts modem chip (10) with the baseband signal form.
On the other hand, during emission, GSM pattern in this way, then SP4T switch and SPDT switch switch to emission GSM/GPRS path one side, GSM/GPRS RF module (30) is handled carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
In addition, during emission, GPRS pattern in this way, then SP4T switch and SPDT switch switch to emission GSM/GPRS path one side, emission GSM/GPRS RF module (30) is handled carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
In addition, during emission, TD-SCDMA pattern in this way, then SPDT switch and SP4T switch switch to emission TD-SCDMA path one side, emission TD-SCDMA RF module (50) is handled carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
Fig. 4 is the pie graph of another embodiment of the present invention, and it is made of following several sections: emission receives GSM/GPRS RF device (60), in order to support the RF pattern by the GSM/GPRS signal of antenna or modem chip (10) input; Emission receives TD-SCDMA RF device (70), in order to support from the RF pattern of the TD-SCDMA of antenna or modem chip (10) input; The SP4T switch when being receiving mode, is pressed GSM/GPRS and TD-SCDMA mode switch by the signal that antenna receives, and when being emission mode, switches according to GSM/GPRS and TD-SCDMA pattern, makes through transmitting of RF processing and exports by antenna; The SPDT switch when being emission mode, according to GSM/GPRS and TD-SCDMA pattern, switches through transmitting that RF handles.
At first, during reception, GSM pattern in this way, then the SP4T switch switches to GSM RX path one side, the signal that receives by electric wire is linked into emission reception GSM/GPRS RF module (60) by band pass filter, therefore, above-mentioned emission receives GSM/GPRS RF module (60) above-mentioned received signal is carried out the RF signal processing, inserts modem chip (10) with the baseband signal form.
In addition, GPRS pattern in this way, then the SP4T switch switches to GPRS RX path one side, the signal that receives by electric wire is linked into emission reception GSM/GPRS RF module (60) by band pass filter, therefore, above-mentioned emission receives GSM/GPRS RF module (60) above-mentioned received signal is carried out the RF signal processing, inserts modem chip (10) with the baseband signal form.
In addition, TD-SCDMA pattern in this way, the SP4T switch switches to TD-SCDMA RX path one side, and the signal that receives by antenna is linked into emission by band pass filter and receives TD-S
CDMA RF module (70), therefore, above-mentioned emission receives TD-SCDMA RF module (70) above-mentioned received signal is carried out the RF signal processing, is linked into modem chip (10) with the baseband signal form.
On the other hand, during emission, GSM pattern in this way, then SP4T switch and SPDT switch switch to emission GSM/GPRS path one side, emission receives GSM/GPRS RF module (60) and handles carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
In addition, during emission, GPRS pattern in this way, then SP4T switch and SPDT switch switch to emission GSM/GPRS path one side, emission receives GSM/GPRS RF module (70) and handles carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
In addition, during emission, TD-SCDMA pattern in this way, then SP4T switch and SPDT switch switch to emission TD-SCDMA path one side, emission receives TD-SCDMA RF module (70) and handles carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
Fig. 5 is an another embodiment of the present invention, and it is made of following several sections: receive GSM/GPRS/TD-SCDMA RF device (80), in order to support by the GSM/GPRS signal of antenna input and the RF pattern of TD-SCDMA signal; Emission GSM/GPRS/TD-SCDMA RF device (90) is in order to support from the RF pattern of the GSM/GPRS/TD-SCDMA baseband signal of modem chip (10) input; The SP4T switch when being receiving mode, is pressed GSM/GPRS and TD-SCDMA mode switch by the signal that antenna receives, and when being emission mode, switches according to GSM/GPRS and TD-SCDMA pattern, makes through transmitting of RF processing and exports by antenna; The SPDT switch when being emission mode, according to GSM/GPRS and TD-SCDMA pattern, switches through transmitting that RF handles.
During reception, GSM pattern in this way, then the SP4T switch switches to GSM RX path one side, the signal that receives by antenna is linked into reception GSM/GPRS/TD-SCDMA RF module (80) by band pass filter, therefore, above-mentioned reception GSM/GPRS/TD-SCDMA RF module (80) is carried out the RF signal processing to above-mentioned received signal, inserts modem chip (10) with the baseband signal form.
In addition, GPRS pattern in this way, then the SP4T switch switches to GPRS RX path one side, the signal that receives by antenna is linked into reception GSM/GPRS/TD-SCDMA RF module (80) by band pass filter, therefore, above-mentioned reception GSM/GPRS/TDSCDMA RF module (80) is carried out the RF signal processing to above-mentioned received signal, inserts modem chip (10) with the baseband signal form.
In addition, TD-SCDMA pattern in this way, then the SP4T switch switches to TD-SCDMA path one side, the signal that receives by antenna is linked into reception GSM/GPRS/TD-SCDMA RF module (80) by band pass filter, therefore, above-mentioned reception GSM/GPRS/TD-SCDMA RF module (80) is carried out the RF signal processing to above-mentioned received signal, is linked into modem chip (10) with the form of baseband signal.
On the other hand, during emission, GSM pattern in this way, then SP4T switch and SPDT switch switch to emission GSM/GPRS path one side, emission GSM/GPRS/TD-SCDMA RF module (90) is handled carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
In addition, during emission, GPRS pattern in this way, then SP4T switch and SPDT switch switch to emission GSM/GPRS path one side, emission GSM/GPRS/TD-SCDMA RF module (90) is handled carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
In addition, during emission, TD-SCDMA pattern in this way, then SP4T switch and SPDT switch switch to emission TD-SCDMA path one side, emission GSM/GPRS/TD-SCDMA RF module (90) is handled carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
Fig. 6 is the pie graph of another embodiment of the present invention, it is made of following several sections: emission receives GSM/GPRS/TD-SCDMA RF device (100), in order to support by antenna or the GSM/GPRS signal of modem chip (10) input and the RF pattern of TD-SCDMA signal; The SP4T switch when being receiving mode, is pressed GSM/GPRS and TD-SCDMA mode switch by the signal that antenna receives, and when being emission mode, switches according to GSM/GPRS and TD-SCDMA pattern, makes through transmitting of RF processing and exports by antenna; The SPDT switch when being emission mode, according to GSM/GPRS and TD-SCDMA pattern, switches through transmitting that RF handles.
At first, during reception, GSM pattern in this way, then the SP4T switch switches to GSM path one side, the signal that receives by antenna is linked into emission reception GSM/GPRS/TD-SCDMA RF module (100) by band pass filter, therefore, above-mentioned emission receives GSM/GPRS/TD-SCDMA RF module (100) above-mentioned received signal is carried out the RF signal processing, inserts modem chip (10) with the baseband signal form.
In addition, GPRS pattern in this way, then the SP4T switch switches to GPRS RX path one side, and the signal that receives by antenna is linked into emission and is received GSM/GPRS/TD-SCDMA RF module (100) by band pass filter, therefore, above-mentioned emission receives GSM/GPRS/TD-SCDMA
RF module (10) is carried out the RF signal processing to above-mentioned received signal, inserts modem chip (10) with the baseband signal form.
In addition, TD-SCDMA pattern in this way, then the SP4T switch switches to TD-SCDMA RX path one side, the signal that receives by antenna is linked into emission reception GSM/GPRS/TD-SCDMA RF module (100) by band pass filter, therefore, above-mentioned emission receives GSM/GPRS/TD-SCDMA RF module (100) above-mentioned received signal is carried out the RF signal processing, is linked into modem chip (10) with the form of baseband signal.
On the other hand, during emission, GSM pattern in this way, then SP4T switch and SPDT switch switch to emission GSM/GPRS path one side, emission receives GSM/GPRS/TD-SCDMA RF module (100) and handles carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
In addition, during emission, GPRS pattern in this way, then SP4T switch and SPDT switch switch to emission GSM/GPRS path one side, emission receives GSM/GPRS/TD-SCDMA RF module (100) and handles carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
In addition, during emission, TD-SCDMA pattern in this way, then SP4T switch and SPDT switch switch to emission TD-SCDMA path one side, emission receives GSM/GPRS/TD-SCDMARF module (100) and handles carrying out RF from the baseband signal of modem chip (10) input, and is transmitted into the base station by above-mentioned SPDT switch and SP4T switch and day bundle of lines through the signal that RF handles.
That is to say that the present invention has realized the chip-scaleization of terminal RF part, can in compatible multimode, reduce the accessory number, reduce the whole size of terminal by dwindling the PCB design space.And, when under the GSM/GPRS pattern, launching, utilize biasing PLL structure to realize the bandpass filtering function, thereby reduced to become the RF front end and insertion loss of the low reason of terminal RF performance, improved transmit power efficiency and receiving sensitivity.
Concrete example or embodiment during the invention described above describes in detail are used for clearly stating more technology contents of the present invention, can not limit this specific embodiment, make an explanation to narrow sense, can in the scope of claims of spirit of the present invention and following record, carry out multiple variation.
As the above-mentioned detailed description of doing, the present invention has such effect, i.e. the present invention has realized the chip-scaleization of mobile communication terminal RF part, can reduce the accessory number in compatible multimode, reduces the whole size of terminal by dwindling the PCB design space.
And, when under the GSM/GPRS pattern, launching, utilize biasing PLL structure to realize the bandpass filtering function, thereby reduced to become the RF front end and insertion loss of the low reason of mobile communication terminal RF performance, improved transmit power efficiency and receiving sensitivity.
Claims (4)
1. mobile communication terminal of supporting the three-mode communication mode is characterized in that supporting at the same time comprising in the mobile communication terminal of GSM, GPRS and TD-SCDMA following several sections:
Receive GSM/GPRS RF device, in order to support by the GSM signal of antenna input or the RF pattern of GPRS signal;
Receive TD-SCDMA RF device, in order to support RF pattern by the TD-SCDMA signal of antenna input;
Emission GSM/GPRS RF device is in order to support by the GSM baseband signal of modem chip input or the RF pattern of GPRS baseband signal;
Emission TD-SCDMA RF device is in order to support the RF pattern by the TD-SCDMA baseband signal of modem chip input;
The SP4T switch, in order to when receiving, press present mode and switch, make the signal that receives by antenna access to described reception GSM/GPRS RF device or described reception TD-SCDMA RF device by respective path to the GSM of correspondence RX path, GPRS RX path or TD-SCDMA RX path one side;
The SPDT switch, in order to when launching, switch to the emission GSM/GPRS path of correspondence or emission TD-SCDMA path one side according to present mode, carry out RF transmitting after handling to described SP4T switch to switch through described emission GSM/GPRS RF device or described emission TD-SCDMA RF device;
Described SP4T switch also in order to when launching, switches to transmission path one side, so that export by antenna through transmitting of RF processing.
2. mobile communication terminal of supporting the three-mode communication mode is characterized in that supporting at the same time comprising in the mobile communication terminal of GSM, GPRS and TD-SCDMA following several sections:
Receive GSM/GPRS/TD-SCDMA RF device, in order to support RF pattern by GSM signal, GPRS signal or the TD-SCDMA signal of antenna input;
Emission GSM/GPRS/TD-SCDMA RF device is in order to support the RF pattern of GSM baseband signal, GPRS baseband signal or TD-SCDMA baseband signal that modem chip is imported;
The SP4T switch, in order to when receiving, press present mode and switch, make the signal that receives by antenna be linked into described reception GSM/GPRS/TD-SCDMA RF device by respective path to the GSM of correspondence RX path, GPRS RX path or TD-SCDMA RX path one side;
The SPDT switch is in order to when launching, according to the emission GSM/GP of present mode to correspondence
RS path or emission TD-SCDMA path one side are switched, so that transmitting after described emission GSM/GPRS/TD-SCDMA RF device carries out the RF processing switches to described SP4T switch through respective path;
Described SP4T switch in order to when launching, switches to transmission path one side, so that export by antenna through transmitting of RF processing.
3. mobile communication terminal of supporting the three-mode communication mode is characterized in that supporting at the same time comprising in the mobile communication terminal of GSM, GPRS or TD-SCDMA following several sections:
Emission receives GSM/GPRS RF device, in order to support by antenna or the GSM signal of modem chip input or the RF pattern of GPRS signal;
Emission receives TD-SCDMA RF device, in order to support the RF pattern by the TD-SCDMA signal of antenna or modem chip input;
The SP4T switch, in order to when receiving, press present mode and switch, make the signal that receives by antenna access to described emission and receive GSM/GPRS RF device or described emission reception TD-SCDMA RF device by respective path to the GSM of correspondence RX path, GPRS RX path or TD-SCDMA RX path one side;
The SPDT switch, when emission, switch to the emission GSM/GPRS path of correspondence or emission TD-SCDMA path one side according to present mode, receive GSM/GPRS RF device or described emission through described emission and receive TD-SCDMA RF device and carry out RF transmitting after handling to described SP4T switch to switch;
Described SP4T switch also in order to when launching, switches to transmission path one side, so that export by antenna through transmitting of RF processing.
4. mobile communication terminal of supporting the three-mode communication mode is characterized in that supporting at the same time comprising in the mobile communication terminal of GSM, GPRS or TD-SCDMA following several sections:
Emission receives GSM/GPRS/TD-SCDMA RF device, in order to support the RF pattern by GSM signal, GPRS signal or the TD-SCDMA signal of antenna or modem chip input;
The SP4T switch, in order to when receiving, press present mode and switch, make the signal that receives by antenna access to described emission and receive GSM/GPRS/TD-SCDMA RF device by respective path to the GSM of correspondence RX path, GPRS RX path or TD-SCDMA RX path one side;
The SPDT switch, in order to when launching, switch to the emission GSM/GPRS path or emission TD-SCDMA path one side of correspondence according to present mode, so that transmitting after described emission receives GSM/GPRS/TD-SCDMA RF device to carry out the RF processing switches to described SP4T switch through respective path;
Described SP4T switch also in order to when launching, switches to transmission path one side, so that export by antenna through transmitting of RF processing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR0030984/2003 | 2003-05-15 | ||
| KR10-2003-0030984A KR100504837B1 (en) | 2003-05-15 | 2003-05-15 | Mobile communication terminal in using gsm/gprs and td-scdma |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1551658A CN1551658A (en) | 2004-12-01 |
| CN1551658B true CN1551658B (en) | 2010-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN031601103A Expired - Fee Related CN1551658B (en) | 2003-05-15 | 2003-09-26 | Mobile communication terminal supporting three pattern communication mode |
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| Country | Link |
|---|---|
| KR (1) | KR100504837B1 (en) |
| CN (1) | CN1551658B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100690790B1 (en) * | 2005-03-05 | 2007-03-09 | 엘지전자 주식회사 | Apparatus for switching gsm mode and cdma mode |
| CN101005657B (en) * | 2006-01-18 | 2010-05-26 | 英华达（南京）科技有限公司 | Intelligent identifying circuit for double mode mobile phone |
| EP1987564A1 (en) * | 2006-02-22 | 2008-11-05 | Nokia Corporation | An antenna arrangement |
| CN101110633B (en) * | 2006-07-19 | 2011-08-31 | 电信科学技术研究院 | Method and device for initial synchronization between GSM system and TD-SCDMA system |
| CN101267652B (en) * | 2007-03-13 | 2011-04-20 | 中兴通讯股份有限公司 | Method for canceling continuous switch from TDCDMA to other networks in HLR amalgamation mode |
| CN101453756B (en) * | 2007-11-30 | 2010-12-01 | 中国移动通信集团公司 | Load balance control method and apparatus |
| CN101800566B (en) * | 2010-01-06 | 2015-09-09 | 华为终端有限公司 | A kind of radio-frequency front-end system |
| CN102938080A (en) * | 2011-11-10 | 2013-02-20 | 厦门英诺尔电子科技股份有限公司 | Radio frequency (RF) information channel gating circuit of radio frequency identification (RFID) reader-writer |
| CN104065396B (en) * | 2014-06-13 | 2017-12-26 | 福建星网锐捷网络有限公司 | A kind of wireless access device and the network equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6134427A (en) * | 1998-09-30 | 2000-10-17 | Conexant Systems, Inc. | Using a single low-noise amplifier in a multi-band wireless station |
| US6411820B1 (en) * | 1999-04-20 | 2002-06-25 | Conexant Systems, Inc. | Switchable phase lock loop for dual mode applications |
| US6526034B1 (en) * | 1999-09-21 | 2003-02-25 | Tantivy Communications, Inc. | Dual mode subscriber unit for short range, high rate and long range, lower rate data communications |
| CN2543293Y (en) * | 2002-03-25 | 2003-04-02 | 阳庆电子股份有限公司 | Communication switching unit |
-
2003
- 2003-05-15 KR KR10-2003-0030984A patent/KR100504837B1/en not_active IP Right Cessation
- 2003-09-26 CN CN031601103A patent/CN1551658B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6134427A (en) * | 1998-09-30 | 2000-10-17 | Conexant Systems, Inc. | Using a single low-noise amplifier in a multi-band wireless station |
| US6411820B1 (en) * | 1999-04-20 | 2002-06-25 | Conexant Systems, Inc. | Switchable phase lock loop for dual mode applications |
| US6526034B1 (en) * | 1999-09-21 | 2003-02-25 | Tantivy Communications, Inc. | Dual mode subscriber unit for short range, high rate and long range, lower rate data communications |
| CN2543293Y (en) * | 2002-03-25 | 2003-04-02 | 阳庆电子股份有限公司 | Communication switching unit |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040098748A (en) | 2004-11-26 |
| KR100504837B1 (en) | 2005-07-29 |
| CN1551658A (en) | 2004-12-01 |
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