Qualcomm Incorporated

Seyed Mohammad Ehsan Hosseini

Le Nguyen Luong

RaviKiran Gopalan

Eunmo Kang

Yu-Han Yang

Dongsik Kim

Markos Troulis

This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, related to low power techniques for a BLE device during a scanning state. The BLE device is configured to scan for a preamble of a packet while in a first power mode and detect when a bit of the preamble is received. Upon detecting that the bit of the preamble is received, the BLE device switches from the first power mode to a second power having a higher operating power for the BLE device than the first power mode. The switch in power modes occurs while the preamble is being received or immediately after the preamble is received and before an access address of the packet is received. The BLE device, while in the second power mode, then scans for the access address of the packet.

Low power techniques for bluetooth low energy in scanning state

A method for wireless communication is described. The method includes receiving a signal that is pattern-mapped and Gaussian frequency-shift keying (GFSK) modulated. The method also includes performing a joint demapping and demodulation of the received signal based on a stored accumulated phase. The method may further include updating the stored accumulated phase based on the joint demapping and demodulation.

Systems and methods for joint demodulation and demapping

Growing community of inventors

San Diego, CA, United States of America

Seyed Mohammad Ehsan Hosseini