Multimode/Multiband Mobile Station and Method for Operating the Same
First Claim
1. A multimode/multiband mobile station for wireless networks operating based on various wireless interface standards, the mobile station comprising:
- a plurality of low-noise amplifiers (LNAs), each matched to a selected frequency band; and
a near-zero intermediate frequency (NZIF) broadband image rejection (IR) mixer for receiving an amplified radio frequency (RF) signal from one amplifier selected among the plurality of LNAs and generating a first analog intermediate frequency (IF) signal by down converting the amplified RF signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A multimode/multiband mobile station and a method for operating the same are provided. A transmission module transmits multimode/multiband signals through transmitters. A reception module receives radio signals for different services of the same frequency band among multimode/multiband signals through receivers for the same frequency band, and receives radio signals of different frequency bands among the multimode/multiband signals through receivers for the different frequency bands. As compared with the conventional mobile station, the multimode/multiband mobile station can reduce the number of receivers by making use of one receiver to receive radio signals for different services of the same frequency band. The multimode/multiband mobile station can use a duplexer of the conventional frequency division duplex (FDD) technique (e.g., wideband code division multiple access (WCDMA)) in a time division duplex (TDD) technique (e.g., Global System for Mobile Communication (GSM) 850 or Personal Communication Service (PCS) 1900).
134 Citations
42 Claims
-
1. A multimode/multiband mobile station for wireless networks operating based on various wireless interface standards, the mobile station comprising:
-
a plurality of low-noise amplifiers (LNAs), each matched to a selected frequency band; and
a near-zero intermediate frequency (NZIF) broadband image rejection (IR) mixer for receiving an amplified radio frequency (RF) signal from one amplifier selected among the plurality of LNAs and generating a first analog intermediate frequency (IF) signal by down converting the amplified RF signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An operating method of a multimode/multiband mobile station for wireless networks operating based on various wireless interface standards, the method comprising the steps of:
-
amplifying a receive radio frequency (RF) signal by selecting one of a plurality of low-noise amplifiers (LNAs), and matching each of the plurality of LNAs to a selected frequency band; and
generating, by a near-zero intermediate frequency (NZIF) broadband image rejection (IR) mixer, a first analog intermediate frequency (IF) signal by down converting the RF signal amplified by the selected LNA. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
-
21. A multimode/multiband mobile station comprising:
-
a transmission module for transmitting multimode/multiband signals through transmitters; and
a reception module for receiving signals corresponding to the same frequency bands among the multiple modes and multiple bands through combined receivers, which receive at least one radio signal of the same frequency band for different services together, and receiving signals not corresponding to the same frequency bands through receivers for different frequency bands. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
-
-
32. A multimode/multiband mobile station comprising:
-
a switch module for performing a switching operation for selecting a mode and band to be received among multiple modes and multiple bands based on a predetermined control;
receivers, each for receiving its own mode/band signal among multimode/multiband signals based on the switching operation;
mixers, each for down converting the received signal using a local frequency corresponding to the mode and band to be received;
a baseband processing module for controlling a receiver corresponding to the mode and band to be received among the receivers based on a predetermined control, baseband-processing the down converted reception signal, and outputting a baseband signal by classifying the baseband signal for each mode; and
a modem module for outputting a control signal for receiving a signal of the mode and band to be received, controlling the local frequency to a local frequency corresponding to the mode and band to be received, and demodulating the baseband signal for each mode through a modem for each mode. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
-
Specification