Bluetooth low energy module systems and methods

US9185652B2 · kind B2 · utility

Assignee

• Broadcom Corporation · US

Inventors

• Guoxin Xie · San Diego, US
• Yuan Zhuang · San Francisco, US
• Angel Polo · San Diego, US
• Chikan Kwan · San Diego, US
• Cindy (Xin) Tian · San Diego, US
• Arthur Jin · San Diego, US
• Long Wang · 安丰镇, CN

Key dates

• Filing date: Dec 22, 2011
• Grant date: Nov 10, 2015
• Expiry date: Jul 10, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02D30/70
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Disclosed are various embodiments of Bluetooth low energy (BLE) modules and methods implemented therein. An embodiment of the disclosure can obtain in a BLE module an advertiser packet transmitted by a BLE advertiser. An advertiser cache can be checked to determine whether the advertiser cache in the BLE module contains an entry associated with an advertiser address from the advertiser packet. The BLE module can determine whether a payload value of the advertiser packet has changed relative to a previous advertiser packet associated with the advertiser address. The BLE module can then suppress forwarding of the packet to a host processor and/or on-board processor executing firmware. The BLE module can also suppress sending a scan request packet back to the BLE advertiser.