Qualcomm Incorporated

Qijia Liu

Junyi Li

Alexei Yurievitch Gorokhov

Vasanthan Raghavan

Jianghong Luo

Assaf Touboul

Raghu Narayan Challa

Ashok Mantravadi

Amir Aminzadeh Gohari

Daniel Fred Filipovic

Jifeng Geng

Ankit Maheshwari

Subbarayudu Mutya

Jae Won Yoo

Revathi Sundara Raghavan

Li Gao

Parthiban Rajendran

A method, an apparatus, and a computer-readable medium may be described in the present disclosure. The apparatus may be a user equipment. The apparatus may determine whether a number of unsuccessful repetitions associated with performance of a first type of scanning exceeds a repetition threshold. The apparatus may perform a second type of beam scanning based on the determination that the number of unsuccessful repetitions exceeded the repetition threshold.

Steady-state beam scanning and codebook generation

Techniques are described for wireless communication at a wireless communication device. A determination may be made regarding the number of receive chains, of a plurality of receive chains, to enable for a channel. Power to the receive chains may be regulated based on the determined number of enabled receive chains. The determination may be based on a transmission scheduling rate for the wireless communication device and a rank for the channel. In some examples, the determination may further be based on a channel quality of the channel and/or a type of traffic scheduled for the channel.

Techniques for determining a number of receive chains to enable for a channel

Exemplary embodiments are related to power amplifier power level compensation in a pre-distortion system. A method may include applying digital pre-distortion (DPD) of a power amplifier at a frequency channel, a fixed input power value, and a fixed temperature. The method may also include determining an optimal input power value for the power amplifier in response to a change in at least one of frequency and temperature.

Power amplifier signal compensation

Various embodiments enable a multi-SIM multi-active (MSMA) communication device to operate a power amplifier in a power saving envelope tracking mode when a first radio frequency (RF) resource is supporting data transmission to a communication network associated with a first SIM and a second RF resource is supporting a voice call in discontinuous transmission mode. A MSMA communication device processor may monitor the second RF resource supporting the voice call for silence periods, the power amplifier of the first RF resource may operate in a first power-saving mode during silence periods on the voice call, and the power amplifier of the first RF resource may operate in a second power-saving mode when the voice call on second RF resource is not in a period of silence. Periods of silence may be determined by monitoring a protocol stack of the second RF resource for silence descriptor (SID) frames scheduled for transmission.

System and methods for improving opportunistic envelope tracking in a multi-subscriber identity module (SIM) wireless communication device

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San Diego, CA, United States of America

Qijia Liu