Semiconductor chips are made increasingly smaller, thanks to improved design techniques and process scaling. Sometimes the bottleneck is not the chip itself but the package size due to many necessary pins. To help reduce the number of package pins, the chip should use less pins by sharing or reusing pins if possible. Therefore, single-ended RF input/output is used for transceiver, and the same pin is shared between RX and TX. A receiver (RX)-transmitter (TX) impedance co-matching method uses multiple bondwires for transceivers sharing one input/output (I/O) pin between RX and TX. The RX input impedance and TX output impedance are transformed closer to each other or even to the same impedance, which makes it possible to get the best RX and TX performance with just one matching network. The chip area is also saved without using on-chip inductors.

Semiconductor chips are made increasingly smaller, thanks to improved design techniques and process scaling. Sometimes the bottleneck is not the chip itself but the package size due to many necessary pins. To help reduce the number of package pins, the chip should use less pins by sharing or reusing pins if possible. Therefore, single-ended RF input/output is used for transceiver, and the same pin is shared between RX and TX. A receiver (RX)-transmitter (TX) impedance co-matching method uses multiple bondwires for transceivers sharing one input/output (I/O) pin between RX and TX. The RX input impedance and TX output impedance are transformed closer to each other or even to the same impedance, which makes it possible to get the best RX and TX performance with just one matching network. The chip area is also saved without using on-chip inductors.

A transceiver device includes a digital baseband circuit, a first circuit portion, and a second circuit portion. The digital baseband circuit is configured to analyze power of an input signal, in order to generate a first control signal and a second control signal. The first circuit portion has a first gain, and is configured to be selected according to the first control signal to process the input signal to generate output signals. The second circuit portion has a second gain higher than the first gain, and is configured to be selected according to the second control signal to process the input signal to generate the output signals. The first circuit portion includes an N-way filter circuit, and the N-way filter circuit is configured to modulate the input signal according to first oscillating signals to perform a filtering operation.

A transceiver device includes a digital baseband circuit, a first circuit portion, and a second circuit portion. The digital baseband circuit is configured to analyze power of an input signal, in order to generate a first control signal and a second control signal. The first circuit portion has a first gain, and is configured to be selected according to the first control signal to process the input signal to generate output signals. The second circuit portion has a second gain higher than the first gain, and is configured to be selected according to the second control signal to process the input signal to generate the output signals. The first circuit portion includes an N-way filter circuit, and the N-way filter circuit is configured to modulate the input signal according to first oscillating signals to perform a filtering operation.

Apparatuses, methods, and computer programs for a mobile transceiver and for a network entity, a mobile transceiver, a network entity and a system, an apparatus, a method, and a computer program for a mobile transceiver. The method for a mobile transceiver to communicate in a mobile communication system includes providing information on a field of application of the mobile transceiver to the mobile communication system.

Apparatuses, methods, and computer programs for a mobile transceiver and for a network entity, a mobile transceiver, a network entity and a system, an apparatus, a method, and a computer program for a mobile transceiver. The method for a mobile transceiver to communicate in a mobile communication system includes providing information on a field of application of the mobile transceiver to the mobile communication system.

A communication system includes a plurality of full duplex transceiver assemblies each having an ON condition and an OFF condition, and configured to be worn by a different user, each of the plurality of full duplex transceiver assemblies having a housing and printed circuit board coupled to the housing, the printed circuit board including a transceiver having a microprocessor. Each microprocessor is configured to emit a different stream of controlling data when the plurality of full duplex transceiver assemblies are in the ON condition, thereby allowing each of the plurality of full duplex transceiver assemblies to communicate among a plurality of different logical channels. Embedded with each different stream of controlling data is a unique identification number for grouping each of the plurality of full duplex transceiver assemblies together.

A communication system includes a plurality of full duplex transceiver assemblies each having an ON condition and an OFF condition, and configured to be worn by a different user, each of the plurality of full duplex transceiver assemblies having a housing and printed circuit board coupled to the housing, the printed circuit board including a transceiver having a microprocessor. Each microprocessor is configured to emit a different stream of controlling data when the plurality of full duplex transceiver assemblies are in the ON condition, thereby allowing each of the plurality of full duplex transceiver assemblies to communicate among a plurality of different logical channels. Embedded with each different stream of controlling data is a unique identification number for grouping each of the plurality of full duplex transceiver assemblies together.

Provided is a radio frequency transceiver. The radio frequency transceiver includes: a receiving unit for converting a radio frequency signal received by an antenna into an intermediate signal based on an intermediate local signal; a transmitting unit for converting an intermediate signal into a radio frequency signal based on a radio frequency local signal; and a local signal generating unit for generating the intermediate local signal and the radio frequency local signal.

Provided is a radio frequency transceiver. The radio frequency transceiver includes: a receiving unit for converting a radio frequency signal received by an antenna into an intermediate signal based on an intermediate local signal; a transmitting unit for converting an intermediate signal into a radio frequency signal based on a radio frequency local signal; and a local signal generating unit for generating the intermediate local signal and the radio frequency local signal.