公开(公告)号：US09813081B2

公开(公告)日：2017-11-07

申请号：US15422272

申请日：2017-02-01

Applicant: QUALCOMM Incorporated

Inventor： Natan Tamari ,  Amir Shwartz

IPC: H04B1/40 ,  H04B1/00 ,  H04B1/3827 ,  H04B17/14

CPC classification number: H04B1/0064 ,  H04B1/3827 ,  H04B17/14

Abstract: Certain aspects relate to methods and apparatus for identifying which antenna module is attached to a baseband module port at runtime. For example, an apparatus includes a first radio frequency (RF) module that generates first RF signals based on first intermediate frequency (IF) signals corresponding to a known sequence, and outputs the first RF signals for transmission via a first antenna element, a second RF module that obtains the first RF signals via a second antenna element and processes the first RF signals to generate second IF signals, and a baseband module having first and second ports and generates the first IF signals, to determine which port of the first or second RF modules is coupled to, based on at least one of the first or second IF signals, and to configure at least one of the first or second RF module, according to known configurations, based on the determination.

公开(公告)号：US09673918B1

公开(公告)日：2017-06-06

申请号：US15154746

申请日：2016-05-13

Applicant: QUALCOMM Incorporated

Inventor： Amir Shwartz ,  Elad Hadari

IPC: H04B17/21 ,  H04B1/10 ,  H04B17/318 ,  H04W52/02

CPC classification number: H04B17/21 ,  H03F1/26 ,  H03F3/189 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/447 ,  H03F2200/451 ,  H03G3/3052 ,  H04B1/1036 ,  H04B17/318 ,  H04W52/0229 ,  H04W52/0245 ,  Y02D70/142 ,  Y02D70/40

Abstract: One aspect of this disclosure provides an apparatus for wireless communication. The apparatus comprises a low noise amplifier (LNA), an attenuator, and a processing system. The attenuator is configured to receive a signal from the LNA, generate a first attenuated signal based on the received signal, and generate a second attenuated signal based on the received signal. The processing system is configured to measure a first signal strength of the first attenuated signal at a position and measure a second signal strength of the second attenuated signal at the position. The processing system is further configured to determine a first value based on the first signal strength and the second signal strength and determine a second value based on the first attenuated signal and the second attenuated signal. The processing system is also configured to adjust a current of the LNA if the first value exceeds the second value.