Radio communication device and method for controlling RF-BB state in the same

摘要

A radio communication device enabling a serial interface to restart transmission in a short time when interface setting is changed, as well as a method for controlling RF-BB state in the device, are provided. According to the radio communication device in which a radio frequency section (20) and a baseband section (10) are connected through a serial interface, exclusive signals (Act, Act_Ack) for triggering an interface state change and for acknowledging it are provided between the radio frequency section and the baseband section, respectively. Interface state change control is performed by transmitting and receiving the interface state change trigger exclusive signal and its acknowledgement exclusive signal between the radio frequency section and the baseband section.

主权项

1. A radio communication device comprising:
a radio frequency section; and a baseband section which are connected through a serial interface for exchanging predetermined interface signals, wherein the serial interface is provided with a dedicated interface state change trigger signal, a dedicated interface state change trigger signal acknowledgement, and the predetermined interface signals, wherein the dedicated interface state change trigger signal and the dedicated interface state change trigger signal acknowledgement are used for interface state change control, wherein the baseband section transmits an interface setting change command to the radio frequency section and then starts interface state change processing therein, wherein upon receiving the interface setting change command, the radio frequency section starts interface state change processing therein, wherein while the baseband section performs interface state change processing, the baseband section transmits the dedicated interface state change trigger signal to the radio frequency section, and wherein the radio frequency section, upon completing interface state change processing therein, transmits the dedicated interface state change trigger signal acknowledgement to the baseband section as an acknowledgement of receipt of the dedicated interface state change trigger signal.