Fourth generation mobile communication and impulse radio ultra-wideband integrated reconfigurable system
A pulse radio and mobile communication technology, applied in wireless communication, transmission system, electrical components, etc., can solve the problems of unsatisfactory streaming media application, small dynamic range of service rate, lack of global uniform standards, etc., and achieve rich wireless communication services Effect
Inactive Publication Date: 2010-09-08
SOUTHEAST UNIV +1
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[0006] Therefore, relatively speaking, 3G still has limitations in the current mature system integration technology: 1. Code Division Multiple Access (CDMA) is difficult to achieve a high communication rate; 2. The dynamic range of the service rate that can be provided Not much; 3. The frequency resources allocated to 3G have become saturated; 4. The lack of global unified standards; 5. The voice switching architecture adopted is not pure IP; 6. Streaming media applications are not ideal; 7. The data transmission rate is only close to At the level of ordinary dial-up access
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[0014] Since the 4G mobile communication system adopts a zero-IF structure, and the IR-UWB communication system does not require modulation and demodulation, the system solution includes different circuit unit parts to process two communication signals respectively. At the same time, the two communication systems need to amplify and filter the signal at their respective transmitting end and receiving front end. Therefore, in the system solution, a reconfigurable design is adopted for this part of the circuit unit, and the same reconfigurable circuit can be changed through the control bus. Unit configurations (such as gain, bandwidth, etc.) handle different communication signals.
[0015]As shown in Figure 1, the fourth generation mobile communication (4G) of the present invention and the integrated reconfigurable system of pulse radio ultra-wideband (IR-UWB) include a transmitter and a receiver, and the transmitter includes a 4G baseband module 11 , up-conversion in-phase mixe...
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The present invention discloses a fourth generation mobile communication and impulse radio ultra-wideband integrated reconfigurable system, belongs to wireless communication dual-mode reconfigurable system integration field. The system includes transmitter and a receiver, the transmitter selects direct upconversion fourth generation mobile communication (4G) radiofrequency signal or impulse radioultra-wideband (IR-UWB) communication signals, and amplifying by a reconfigurable power amplifier then transmitting to space by a intelligent antenna; the receiver receives signal from the intelligentantenna and then input into a reconfigurable low noise amplifier, proceeding down-conversion and analog-to-digital conversion to the 4G mobile communication signal or high speed sampling the IR-UWB signal, and then inputting into baseband for signal processing so as to implement reconfigurable integration of two communication systems. The invention provided 4G system is a wide-band communicationsystem of direct frequency conversion structure, the IR-UWB no longer has traditional intermediate frequency and radio frequency concepts, there is no modulation / demodulation needed in communication process so as to make the system compatible with two communication standard.
Description
technical field [0001] The invention relates to a reconfigurable system integrated with a fourth-generation mobile communication (4G) and an impulse radio ultra-wideband (IR-UWB) communication system, belonging to the field of wireless communication dual-mode reconfigurable system integration. Background technique [0002] At present, an important trend in the development of mobile communication is that a single communication terminal can be compatible with multiple communication standards. For example, the integration of the third generation (3G) cellular mobile communication system and wireless communication systems such as Bluetooth or WLAN. Compatible with multiple communication standards, such as communication terminals compatible with GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), Bluetooth (Bluetooth) or wireless local area network (WLAN), etc. can be used as mobile communication terminals, and can also send and recei...
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IPC IPC(8): H04W84/10H04W88/06H04B1/69H04B1/717
Inventor 黄风义姜楠唐旭升张在琛
Owner SOUTHEAST UNIV