Wireless local loop system for interfacing with analog communication device
AssigneeLG Electronics Inc.
InventorsSeung Ki Min, Sung Chul Yang
Life of this patent
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Abstract
A wireless local loop (WLL) system capable of interfacing with an analog communication device is provided. The WLL system comprises: a SLIC (SLT interface Circuit) capable of matching analog data line characteristics of an analog communication device; and a MODEM for at least (1) receiving an analog data signal provided by the analog communication device through the SLIC, and converting the analog data signal into a class ‘0’ digital data, or (2) receiving a class ‘0’ digital data provided by an MSM, converting the class ‘0’ digital data into an analog data signal, and providing the analog data signal to the analog communication device through the SLIC.
Claims42
A wireless local loop system for interfacing with one or more analog communication devices, the wireless local loop system comprising:
- a MODEM for converting between analog and digital data;
- a MSM for providing an interface between an antenna and the MODEM;
- and
- a SLIC (SLT interface Circuit) for providing an interface between one or more analog communication devices and the MODEM, wherein the SLIC matches analog data line characteristics of at least a telephone or that of the one or more analog communication devices;
- and
- wherein the MODEM operates to at least (1) receive an analog data signal provided by the one or more analog communication devices via the SLIC, convert the analog data signal into a class ‘0’ digital data, and provide the class ‘0’ digital data to the MSM, or (2) receive a class ‘0’ digital data provided by the MSM, convert the class ‘0’ digital data into an analog data signal, and provide the analog data signal to the analog communication device through the SLIC;
- and
- wherein the MSM operates to at least (1) code digital data provided by the MODEM, convert the coded digital data into a digital baseband signal, and provide the digital baseband signal to an antenna, or (2) decode a digital baseband signal received through the antenna to produce information data, and provide the information data to the MODEM.
A wireless local loop system for interfacing with an analog communication device comprising:
- a SLIC (SLT interface Circuit) capable of matching analog data line characteristics of an analog communication device;
- and
- a MODEM for at least (1) receiving an analog data signal provided by the analog communication device through the SLIC, and converting the analog data signal into a class ‘0’ digital data, or (2) receiving a class ‘0’ digital data provided by an MSM, converting the class ‘0’ digital data into an analog data signal, and providing the analog data signal to the analog communication device through the SLIC.
A wireless local loop system capable of interfacing with an analog communication device comprising:
- an SLIC (SLT interface Circuit) for matching analog data line characteristics of a telephone set;
- and
- a CODEC for at least (1) receiving an analog voice signal provided by the telephone set through the SLIC, and coding the analog voice signal into a digital voice data, or (2) converting a digital voice data provided by the MSM into an analog voice signal, and providing the analog voice signal to the telephone set through the SLIC.
A method used in a wireless local loop (WLL) system for transmitting data from one or more analog communication devices to a base station, the method comprising:
- receiving an analog data signal provided by one or more analog communication devices;
- converting the analog data signal into digital data;
- coding the digital data;
- converting the coded digital data into a digital baseband signal;
- and
- providing the digital baseband signal to an antenna for transmission to a base station.
A method used in a wireless local loop (WLL) system for communicating data received from a base station via an antenna to one or more analog communication devices interfacing with the WLL system, the method comprising:
- receiving a RF baseband signal transmitted by a base station through an antenna;
- converting the RF baseband signal to an IF signal;
- converting the IF signal to a digital baseband signal;
- converting the digital baseband signal to information data;
- and
- converting the information data to an analog signal for transmission to the an analog communication device.
A method used in a wireless local loop (WLL) system for communicating data between a base station and one or more analog communication devices interfacing with the WLL system, the method comprising:
- receiving an analog data signal provided by an analog communication device through an SLIC interfacing with a WLL system;
- converting the analog data signal into a class ‘0’ digital data;
- coding the class ‘0’ digital data;
- converting the coded class ‘0’ digital data into a digital baseband signal;
- converting the digital baseband signal into an analog IF signal;
- and
- converting the IF signal into a RF baseband signal intended for transmission to a base station through an antenna.
Dependencies are inferred from the claim text.