Qualcomm Incorporated

Joshua Tennyson MacDonald

Scott Hoover

Aziz Gholmieh

Yongle Wu

Feilu Liu

Manjinder Singh Sandhu

Madhusudan Kinthada Venkata

Uzma Khan Qazi

Huilin Xu

Alexei Yurievitch Gorokhov

Tom Chin

Raghu Narayan Challa

Srinivasan Balasubramanian

Reza Shahidi

Brian Clarke Banister

Jun Zhu

Shyamal Ramachandran

Thawatt Gopal

Troy Russell Curtiss

Feng Lu

Vishnu Namboodiri Karakkad Kesavan Namboodiri

Sridhar Bandaru

Sundaresan Tambaram Kailasam

Yi Su

Mariam Motamed

Ammar Kitabi

Brian George

Patrick J Kusbel

Arnab Pal

Udayan Murli Bhawnani

Hemanth Kumar Rayapati

Vishal Mahajan

Stanley Tsai

Siva Kumar Jujaray

Sandeep Rao

Chunchung Chan

Yu Fu

Srivatsa Venkata Chivukula

Vivek Padi

Raj Surya Pratha

Tak Wai Wu

Nikhil Mali

Sandeep Ramannavar

Tian Mai

Satish Pavan Kumar Nichanametla

Sunil Kc

Vani Chaitanya Ginnela

Alvin S Ng

Vikram Ramesh Babu

Kai Xie

Alex Mateen

Juchuan Ma

Yu Hu

Omkar Reddy Seelam

Yash Pathak

Bhupesh Manoharial Umatt

Disclosed are techniques for wireless communication. In an aspect, a UE determines a completion time associated with a communication event for a wakeup period, the wakeup period characterized by at least radio frequency (RF) circuitry being set to an active state. The UE schedules a transition from the wakeup period to a sleep period at the completion time, the sleep period characterized by at least the RF circuitry being set to an inactive state. The UE performs the communication event during the wakeup period. The UE transitions from the wakeup period to the sleep period at the completion time in accordance with the scheduling. The UE determines, after the transition from the wakeup period to the sleep period, a wakeup time associated with a next wakeup period.

Scheduling sleep time transition for a wakeup period of a user equipment

A user equipment (UE) may monitor a channel for wireless communication associated with a first radio access technology (RAT) during one or more of a first active duration or a first inactive duration. The UE may operate in a first power mode during the first inactive duration. The UE may monitor the channel for wireless communication associated with a second RAT during one or more of a second active duration or a second inactive duration. The UE may operate during the second inactive duration in one or more of the first power mode or a second power. The UE may operate according to the first mode or the second mode based on the monitoring of the channel associated with the first RAT and the second RAT.

Techniques for managing a radio transceiver chain for multiple radio access technologies

A base station may configure a user equipment (UE) with a discontinuous reception (DRX), e.g., connected mode DRX (CDRX), and the UE may select a synchronization signal block (SSB) set to perform an SSB warm-up to wake up, search, and measure the SSB set to improve the performance of the UE during a DRX ON duration. The UE may select the SSB set based on a time difference of the SSB set relative to the DRX ON duration. The UE may be configured to wake up to measure one of a first SSB set or a second SSB set having a smaller time difference relative to the DRX ON duration.

SSB set selection for DRX

A method for wireless communication performed by a user equipment (UE) includes transmitting an uplink message to a first base station associated with a first radio access technology (RAT). The method also includes transmitting one or more scheduling requests (SRs) to a second base station associated with a second RAT to trigger a connected mode discontinuous reception (CDRX) ON period. The method further includes receiving a downlink message from the second base station during the CDRX ON period in response to transmitting the uplink message to the first base station.

Split bearer round trip time (RTT) latency optimization

Aspects of the present disclosure relate to wireless communications and, more particularly, to identifying a cell as a handover candidate in coverage areas based on decoding a secondary synchronization signal and/or a primary broadcast channel of the handover candidate cell. An example method generally includes initiating a search for a secondary synchronization signal (SSS) for a first cell of one or more handover candidate cells, and reporting the first cell as a handover candidate in a measurement report if the SSS for the first cell is detected a threshold number of times.

Handover candidate cell identification and radio link failure (RLF) mitigation in coverage areas

Aspects of frequency error detection with Physical Broadcast CHannel (PBCH) frequency hypothesis are described. For example, a method and apparatus are disclosed for frequency tracking in a user equipment (UE) may include detecting a change in frequency that exceeds a pull-in range of a frequency tracking loop (FTL) of the UE. The method and apparatus may also include identifying a tracking recovery frequency in response to the change in frequency being detected, wherein the tracking recover frequency is identified from a set of frequency hypotheses and based on decoding of the PBCH received by the UE. The method and apparatus may further include updating the FTL with the tracking recovery frequency.

Frequency error detection with PBCH frequency hypothesis

Cell reselection for transitioning a user device from a macro cell to a small cell may be performed by comparing a first reselection candidate small cell and a second reselection candidate small cell based on reselection criteria, and selecting a final reselection candidate based on the comparison.

Inter-RAT and intra-RAT small cell reselection

A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may include memory and at least one processor, coupled to the memory, configured to determine a power parameter associated with communication using a first radio access technology (RAT). The at least one processor may be further configured to determine a quality parameter associated with the communication using the first RAT. The at least one processor may be further configured to apply, based on the quality parameter, an offset to the power parameter to form a modified power parameter. The at least one processor may be further configured to transmit a measurement report including the modified power parameter. The apparatus may be a wireless device, such as a user equipment (UE) and, more specifically, a high gain UE.

Techniques for managing inter-radio access technology handovers for high gain user equipment

Techniques for determining if it is safe for a mobile device to transition directly from a traffic session to a paging mode and for avoiding network re-synchronization procedures in stationary M2M devices are disclosed. It may be safe for direct transition if before-call and in-call network parameters correspond. If safe, the mobile device may transition from the traffic session directly to the paging mode to begin immediately monitoring the paging channel. In stationary M2M devices, paging information is stored before the traffic session and, once the traffic session is complete, the M2M device may be configured to receive paging messaging based on the stored paging information. The M2M device may also store system access information and confirm the validity of the information before returning to the sleep state. The stationary M2M device avoids network re-synchronization procedures. Other aspects, embodiments, and features are also claimed and described.

Method and apparatus for fast TCH to idle transition

Aspects disclosed herein relate to determining frequencies for measuring cells in reselection. A set of frequencies over which to measure cells for reselection can be prioritized, wherein one or more first frequencies in the set of frequencies correspond to frequencies of previously visited closed subscriber group (CSG) cells, multimedia broadcast multicast services (MBMS) frequencies, etc. A command to deprioritize one or more second frequencies for reselection can be received, and it can be determined whether to deprioritize the one or more second frequencies in the prioritized set of frequencies based at least in part on the command. One or more cells can be measured over the prioritized set of frequencies based at least in part on respective priorities of the set of frequencies and may be evaluated for reselection.

Techniques for resolving conflicting rules in measuring cells for reselection

Growing community of inventors

Superior, CO, United States of America

Joshua Tennyson MacDonald