Siemens Aktiengesellschaft

Huawei Technologies Co., Limited

Jun Zou

Tao Li

Yalin Liu

Xiaohu You

Ming Hua Liu

Hengjie Hu

Mao Wang

Su Ying Song

Xiao Bo Wang

Ming Liu

Provided is an extension module for independently storing calibration data, including: a first interface, adapted to receive a first external input signal; a second interface, adapted to output the first output signal of the extension module; a signal processing circuit, connected between the first interface and the second interface; and a first memory, the first memory storing first calibration data, and the first calibration data being associated with the extension module. Furthermore, also provided is a component using the above extension module, and a component calibration method. On the one hand, the extension module of an embodiment may share an ADC sampling circuit on a main module, so that the manufacturing cost of the extension module is reduced. On the other hand, an embodiment can facilitate the replacement of different extension modules for the main module without repeated calibration.

Extension module for independently storing calibration data, component, and component calibration method

A communication method includes: determining, by a first device, a first synchronization signal, where the first synchronization signal is used by a second device for symbol timing alignment and frequency synchronization; and sending, by the first device, the first synchronization signal on each group of subcarriers of M groups of subcarriers, where M is a positive integer greater than or equal to 2. According to the communication method in this application, the first device sends the first synchronization signal on each group of subcarriers of a plurality of groups of subcarriers, so that the second device can select, based on a reception capability of the second device, an appropriate bandwidth to receive the first synchronization signal.

Communication method and device

Growing community of inventors

Nanjing, China

Jun Zou