According to an embodiment, a communication apparatus creates a prediction model taking into consideration of the actual fluctuation of a self-interference signal. The communication apparatus selects, where the self-interference signal has largely fluctuated, a prediction model in accordance with a fluctuation pattern at an early stage of the fluctuation. The communication apparatus generates a cancel signal by control applying a gain and an amount of phase shift represented by the prediction model.

According to an embodiment, a communication apparatus creates a prediction model taking into consideration of the actual fluctuation of a self-interference signal. The communication apparatus selects, where the self-interference signal has largely fluctuated, a prediction model in accordance with a fluctuation pattern at an early stage of the fluctuation. The communication apparatus generates a cancel signal by control applying a gain and an amount of phase shift represented by the prediction model.

A bridge network and an antenna module are provided. The antenna module includes n antennas, the bridge network includes n bridge modules, a third port of a 1.sup.st bridge module in the n bridge modules is connected to a second port of an n.sup.th bridge module in the n bridge modules, a third port of an i.sup.th bridge module in the n bridge modules is connected to a second port of an (i−1).sup.th bridge module in the n bridge modules, and fourth ports of the n bridge modules are respectively connected to the n antennas, where i is an integer greater than or equal to 2 and less than or equal to n, and n is an integer greater than or equal to 2.

An antenna interface arrangement is disclosed for cancellation of a transmit signal at a receiver port of a transceiver. The antenna interface arrangement comprises a distributed transformer and an impedance. The distributed transformer has a primary side winding connectable to an antenna port of the transceiver and having a first part (111) and a second part (112), a first secondary side winding (113) connectable to a transmitter port of the transceiver and having a first inductive coupling to the first part of the primary side winding, and a second secondary side winding (114) connectable to the receiver port of the transceiver and having a second inductive coupling to the second part of the primary side winding. The impedance (106, 107) is connected between the first secondary side winding and the second secondary side winding. The first and second inductive couplings are adapted to provide a first version of the transmit signal at the receiver port, and the impedance is adapted to provide a second version of the transmit signal at the receiver port, for cancelling the first version of the transmit signal. In some embodiments, the antenna interface arrangement is also for cancellation of a received signal at the transmitter port of the transceiver. Corresponding transceiver and communication device are also disclosed. In some embodiments, the antenna interface arrangement is also for cancellation of a received signal at the transmitter port of the transceiver. Corresponding transceiver and communication device are also disclosed.

An electronic apparatus and a method for determining which of a plurality of coexistence modes to execute with a processor. The processor selectively runs one or more applications. Each coexistence mode when executed enables coexistence of wireless communication according to first and second wireless communication protocols. The processor executes a program so as to: measure wireless signal conditions of signals received with the first and second wireless communication protocols, respectively; determine packet statistics of communication packets received with the first and second wireless communication protocols, respectively; obtain, for each application being run by the processor, an application performance indication, an application first communication protocol setting; and an application second communication protocol setting; determine which one of the coexistence modes to execute based on the wireless signal conditions, the packet statistics, the application performance indication, application first communication protocol setting; and the application second communication protocol setting.

An electronic apparatus and a method for determining which of a plurality of coexistence modes to execute with a processor. The processor selectively runs one or more applications. Each coexistence mode when executed enables coexistence of wireless communication according to first and second wireless communication protocols. The processor executes a program so as to: measure wireless signal conditions of signals received with the first and second wireless communication protocols, respectively; determine packet statistics of communication packets received with the first and second wireless communication protocols, respectively; obtain, for each application being run by the processor, an application performance indication, an application first communication protocol setting; and an application second communication protocol setting; determine which one of the coexistence modes to execute based on the wireless signal conditions, the packet statistics, the application performance indication, application first communication protocol setting; and the application second communication protocol setting.

An antenna interface arrangement is disclosed for cancellation of a transmit signal at a receiver port of a transceiver. The antenna interface arrangement comprises an amplifier and a distributed transformer having a primary side winding, a first secondary side winding, and a second secondary side winding. The primary side winding is connectable to a transmitter port of the transceiver and has a first part (311) and a second part (312), the first secondary side winding (313) is connectable to an antenna port of the transceiver and has a first inductive coupling to the first part of the primary side winding, and the second secondary side winding (314, 315) is connectable to the receiver port of the transceiver and has a second inductive coupling to the second part of the primary side winding. The amplifier (305, 306) has an input connected to the first secondary side winding and an output connected to the second secondary side winding. The second inductive coupling is adapted to provide a first version of the transmit signal at the receiver port, and the first inductive coupling and the amplifier are adapted to provide a second version of the transmit signal at the receiver port, for cancelling the first version of the transmit signal. Corresponding transceiver and communication device are also disclosed.

A wireless communication chip includes an analog front-end circuit and a baseband circuit. The analog front-end circuit includes a first transceiver circuit and a second transceiver circuit, wherein the first transceiver circuit is arranged to transmit or receive signals through a first antenna, and the second transceiver circuit is arranged to transmit or receive signals through a second antenna. The baseband circuit is arranged to control the first transceiver circuit to use a first band or a second band for communication, and/or to control the second transceiver circuit to use the first band or the second band for communication. The baseband circuit controls the first transceiver circuit and the second transceiver circuit so that the analog front-end circuit alternately performs 2T2R in the first band and 2T2R in the second band.

A wireless communication chip includes an analog front-end circuit and a baseband circuit. The analog front-end circuit includes a first transceiver circuit and a second transceiver circuit, wherein the first transceiver circuit is arranged to transmit or receive signals through a first antenna, and the second transceiver circuit is arranged to transmit or receive signals through a second antenna. The baseband circuit is arranged to control the first transceiver circuit to use a first band or a second band for communication, and/or to control the second transceiver circuit to use the first band or the second band for communication. The baseband circuit controls the first transceiver circuit and the second transceiver circuit so that the analog front-end circuit alternately performs 2T2R in the first band and 2T2R in the second band.

A process for dual subscriber identity module (SIM) dual standby (DR-DSDS) operation including receiving event data indicating a trigger event configuring radio frequency (RF) hardware; identifying a conflict between a communication band of a first SIM and a communication band of a second SIM for DR-DSDS operation; determining a type of the conflict; determining, a first priority value for a component carrier (CC) corresponding to the first SIM, and a second priority value for a CC corresponding to the second SIM, the first and second priority values based at least on the type of the conflict; determining a timing scenario for configuring the RF hardware; searching for a RF hardware configuration to resolve the conflict based on the first and second priority values; and generating RF handle data, corresponding to the conflict resolution, specifying a RF hardware configuration for the DR-DSDS operation.