Apple Inc.

Yaoqi Yan

Zhiwei Wang

Longda Xing

Qiang Miao

Dawei Zhang

Fangli Xu

Yuqin Chen

Srinivasan Nimmala

Sethuraman Gurumoorthy

Srirang Ashok Lovlekar

Murtaza A Shikari

Sree Ram Kodali

Muthukumaran Dhanapal

Haijing Hu

Jing Wang

Vijay Venkataraman

Jianxiong Shi

Beibei Wang

Lele Cui

Tao Xie

Shangfeng Li

Jishan Gao

Li Su

Huarui Liang

Madhusudan Chaudhary

Lijie Zhang

Qin Zhang

Umesh K Shukla

Yong Zhong

Junzhen Qin

Bo Wang

Xiao Nie

Ruirui Zong

Zhu Ji

Lei Li

Sreevalsan Vallath

Wanping Zhang

Faraz Faheem

Yu P Sun

Yingjie Zhao

Wenping Lou

Elliot S Briggs

Ye Dai

Wenshan Pan

Devices and associated methods for operating a dual-subscriber identity module (SIM) dual-standby (DSDS) user equipment device (UE) configured with a first SIM and a second SIM. The UE performs communications with a first cellular network using the first SIM and a first radio resource control (RRC) connection, and receives a request to perform a higher priority communication using the second SIM. In response to the request to perform the higher priority communication, the UE transmits a request to the first network to suspend the first RRC connection. After transmission of the request to suspend the first RRC connection, the UE receives a message from the first network to place the first RRC connection in an inactive state, and initiates a timer, wherein the timer is used to determine whether the first RRC connection remains in the inactive state or transitions to an idle state.

User equipment having multiple subscriber identity modules with improved suspend / resume operation

A user equipment (UE) includes first and second subscriber identity modules (SIMs), possibly subscribed to different carriers. When the first SIM is in a connected state and the second SIM is in an idle state, the UE may need to periodically tune away a radio from a first frequency used for communication under the first SIM to a second frequency used for idle mode activity under the second SIM. The UE may provide to the network of the first SIM the second SIMs traffic activity pattern and/or serving frequency so that the network may provide coordinated configuration and/or scheduling for the UE device, e.g., in order to make the action of tuning away (and tuning back) the radio more efficient and/or to decrease the network impact of such radio tune aways (e.g., to decrease wasted uplink scheduling and wasted downlink transmissions for the first SIM).

Throughput and radio resource utilization for user equipment having multiple subscriber identity modules

This disclosure relates to systems, apparatuses, and methods for coordinating communication and avoiding and/or mitigating collisions for multi-subscriber identity module devices in a wireless communication system. A wireless device may coordinate communication associated with different subscriber identity modules and/or may mitigate collisions between communications associated with different subscriber identity modules. A network may provide information to improve coordination and/or mitigate collisions. A network may adjust paging schedules and/or provision of alert messages to improve coordination.

Communication coordination and collision mitigation for multi-subscriber identity module

Communication coordination and collision mitigation for multi-subscriber identity module devices

A mobile device collects received information and processes it. In some instances, the mobile device detects, based on the collected information, that a base station is likely not legitimate, i.e., it is likely a fake base station, and the mobile device bars communication with the base station for a time. In some embodiments, the mobile device determines, based on the received information, that the base station is a genuine base station. When the mobile device determines that the base station is a genuine base station or the mobile device does not determine that it is likely the base station is a fake base station, the mobile device allows or continues communication with the base station.

Fake base station detection

Embodiments are presented herein of apparatuses, systems, and methods for a user equipment (UE) device to adaptively enhance the quality of service (QoS) configuration of a bearer of communications conducted over a cellular network between a UE application and a server. The UE may use various information, including a QoS profile associated with the application, to determine requested QoS parameters and/or whether the UE is permitted to request or access enhanced QoS functionality. The UE may then send a request to the cellular network indicating the requested QoS parameters, and the network may adjust the QoS configuration of the bearer in response. The UE and the network may perform routine QoS measurements and exchange information in order to adaptively maintain and optimize the QoS configuration. These techniques may tend to provide more appropriate QoS to the application, which may improve user experience.

Adaptive quality of service for latency-sensitive applications

This disclosure relates to techniques for a wireless device to detect and operate in an elevator or elevator-like conditions. The wireless device may establish a cellular link with a cellular base station. One or more conditions associated with being in an elevator may be detected. The wireless device may determine to operate in an elevator mode based at least in part on detecting the one or more conditions associated with being in an elevator. The wireless device may operate in the elevator mode. One or more conditions associated with exiting an elevator may be detected. The wireless device may determine to operate in a normal mode based at least in part on detecting the one or more conditions associated with exiting an elevator. The wireless device may operate in the normal mode.

Elevator scenario detection and operation for wireless devices

A device, system, and method adaptively adjusts uplink power transmission to component carriers in carrier aggregation. The method is performed at a user equipment configured with a carrier aggregation functionality including a primary component carrier (PCC) and a secondary component carrier (SCC), the UE using a first transmit power for an uplink transmission on the PCC and using a second transmit power for the uplink transmission on the SCC. The method includes determining whether a total transmit power including the first and second transmit powers for the uplink transmission exceeds a predetermined threshold. The method includes, when the total transmit power exceeds the predetermined threshold, adjusting the first transmit power based on a connectivity parameter for the PCC. The method includes adjusting the second transmit power based on the adjusting of the first transmit power.

Device, system, and method for adaptive transmission power allocation in uplink carrier aggregation

This disclosure relates to techniques for performing radio link monitoring and cell searching when moving at high speeds. A movement speed of a wireless device may be determined. When performing a cell search, the manner of the cell search may depend on the movement speed of the wireless device, potentially including cells that are associated with high movement speed being more highly prioritized when the wireless device is determined to be at a higher movement speed than when the wireless device is determined to be at a lower movement speed.

Radio link monitoring and cell search techniques for high movement speeds

Generating and using a device-type specific preferred public land mobile network (PLMN) list for roaming PLMN selection. Wireless devices sharing one or more common characteristics may be tasked with collecting roaming PLMN selection data. That data may be collected and used to generate a preferred PLMN list specific to wireless devices sharing those common characteristics. The preferred PLMN list may be distributed to wireless devices sharing those common characteristics, which may then use it in conjunction with roaming PLMN selection.

Device-type specific preferred PLMN list

Growing community of inventors

Beijing, China

Yaoqi Yan