Broadcom Corporation

Abhishek Pandit

Yuan Liu

Stephen Richards

Sudip Alexei Gupta

Navin K Karra

Giridhar Pattaswamy

Sethuraman Gurumoorthy

Sridhar Prakasam

Yaxin Cao

Sultan Budhwani

Yongqian Wang

Aniruddha Subhash Diwan

Soma Majumdar

Dong Zheng

Vikram Shantveer Mhetre

Odile Rollinger

Jun Lin

Mojan Mohajer

Sandeep Sarthavalli Ramesh

Sagar Nargundkar

Romain Marie Pierre Raymond Garcin

Navin Karra

User equipment (UE) includes an architecture for locating femtocells. The architecture implements a phased search approach. The phased search helps the UE find the correct femtocells in a time and power efficient manner, by performing the search in a way that matches the likely changes to femtocell configurations.

Phased search for femtocells

User equipment (UE) includes an architecture for handling femtocell fingerprints, and searching for femtocells. The architecture may control the frequencies for which the femtocell search is performed in various manners. For example, the architecture may schedule a round-robin list of femtocell frequencies for measurement, and may reduce the search space according to the frequency bands actually in use in the region in which the UE is located, according to whether or not reselection timers are running for specific frequencies, or in other ways.

Cell selection techniques for femtocell measurements

User equipment (UE) includes an architecture for handling femtocell fingerprints. The architecture may, as examples, maintain the validity and reliability of fingerprints and coordinate enhancement to existing fingerprints. The architecture also supports fingerprint creation, updating, and deletion.

Femtocell fingerprinting

An acknowledgement technique reduces packet-switched communication delays. The technique may be implemented in a mobile communication device with multiple SIMs. The technique facilitates enhanced communication capability for the mobile communication device. In one implementation, the technique helps reduce delays caused by switching between packet-switched and circuit-switched communications. Specifically, in one aspect, the technique reduces delays caused by exponential backoff that may occur during suspension of a packet-switched communication.

Communication protocol technique for improving data throughput

User equipment with multiple subscriber identity modules (SIMs) includes techniques for intelligently allowing the SIMs to access the radio resources. In one aspect, the techniques determine whether a network signaling criteria is satisfied. When the network signaling criteria is satisfied, the user equipment may communicate a signaling connection release indication to a network controller handling a first SIM network connection. When the network signaling criteria is not satisfied, however, the user equipment may forgo communicating the signaling connection release indication to the network controller handing the first SIM network connection. In either case, the user equipment may locally deactivate the first SIM network connection so that the radio frequency interface may be transitioned to a second SIM.

Virtual modem suspension handler in multiple SIM user equipment

Systems and methods are presented to support operation of a multiple subscriber identity module (SIM) device. A first SIM may perform a data transfer or voice call. During the first SIM's data transfer or voice call, transition times are identified to transition communication resources to a second SIM for use in performing a registration update communication with a network controller that supports the second SIM. The registration update communication may include a periodic location update, a periodic routing update, or a periodic tracking update. The multiple SIM device may identify the transition time by obtaining periodic registration timing information from the network controller, configuring a periodic registration timer based on the periodic registration timing information, and setting the transition time as an expiration time of the periodic registration timer.

Periodic registration updates for multiple SIM user equipment

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Wokingham, United Kingdom

Abhishek Pandit