Qualcomm Incorporated

Krishna Rao Mandadapu

Parthasarathy Krishnamoorthy

Chetan Chakravarthy

Vijay Marwah

Ozcan Ozturk

Tao Luo

Thawatt Gopal

Muhammad Nazmul Islam

Kuo-Chun Lee

Srinivasan Balasubramanian

Qingxin Chen

Ruiming Zheng

Fan Wang

Arvindhan Kumar

Shravan Kumar Raghunathan

An-Swol Clement Hu

Tom Chin

Raghu Narayan Challa

Zhen Zhang

Mueez Ahmad

Shyamal Ramachandran

Sundaresan Tambaram Kailasam

Uzma Khan

Kumarabhijeet Singh

Yonas Kidane

Ran Berliner

Thomas Klingenbrunn

Daniel Amerga

Supratik Bhattacharjee

Bhupesh Manoharlal Umatt

Divaydeep Sikri

Jafar Mohseni

Nitin Pant

Sathish Krishnamoorthy

Chintan Shirish Shah

Ammar Kitabi

Pavan Kaivaram

Kiran Patil

Farrukh Rashid

Praveen Kumar Appani

Sunil Suresh Patil

Srivatsa Venkata Chivukula

Swaminathan Sureshchandran

Anindya Majumder

Peng Wu

Jayesh Bathija

Haiqin Liu

Joe Thomas

Yunsong Mu

Ta Yan Siu

Venkata Potnuru

Srinivasa Prasad Vangaru

Premshankar Umasankar

Vigneshwar Sekarbabu

Jiming Guo

An-Swol C Hu

A MSIM UE may perform network operations for each network subscription. However, if the MSIM UE employs subscriptions for the same network, these operations may be performed redundantly. By notifying the network of multiple subscriptions at the UE and associating the multiple subscriptions at the network, the present invention provides power-saving at the UE and reduces network signaling overhead by optimizing communication for MSIM UE. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to indicate to a network that the UE is associated with a plurality of network subscriptions, the plurality of network subscriptions including at least a first network subscription and a second network subscription, transmit location information using the first network subscription to the network, wherein the location information corresponds to a UE location, and receive data associated with the second subscription from the network.

Location update optimizations for intra-PLMN multi-SIM UEs

A MSIM UE may perform various network operations for each network subscription. However, if the MSIM UE employs subscriptions for different network operators, the UE may need to periodically tune away for an active data transmission. Such tune-away may cause the UE to miss scheduled communications from the network. Aspects of the present invention are directed to a mechanism by which a UE can notify a base station of the MSIM state, and thereby allow the network to improve scheduling for the UE to allow for periodic tune-away by the UE with minimal impact on scheduled communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may by a UE, such as MSIM UE. The apparatus may be configured to determine that the UE is associated with one or more network subscriptions, and transmit a subscription indication to a network device, wherein the subscription indication identifies a subscription state of the UE to the network.

UE SIM state network notifications

Methods, systems, and devices are described for enhanced power savings in wireless devices through mobile initiated dormancy procedure. A user equipment (UE) may establish radio resource control (RRC) connectivity with a base station of the network, and transmit and receive one or more distinct signaling messages for dormancy state initialization and suspension at the UE. Dormancy state implementation at the UE may conserve available power resources at the UE during periods of inactive data transaction. The one or more signaling messages may contain a single or multi-bit indication for the receiving device, and may be transmitted via direct signaling on upper layer protocols of the data network or mapped to allocated resources of a data transmission. The signaling messages may sustain synchronization between the interpreted functional mode of the UE at the base station and the implemented mode at the UE.

Enhanced power savings through mobile initiated dormancy

Methods, systems, and devices for wireless communication are described in relation to a Multiple Subscriber Identify Module (MSIM) user equipment (UE). The UE associated with multiple network subscriptions may determine a first timing of a first set of paging occasions associated with a first network subscription of the multiple network subscriptions, wherein the first network subscription is associated with a first network; determine a second timing of a second set of paging occasions associated with a second network subscription of the multiple network subscriptions, wherein the second network subscription is associated with a second network; compare the first timing and the second timing; detect a paging time adjustment condition based on the comparing; and based on the detecting, transmit to the first network, the second network or both a random access signal using a random access resource configured to convey a paging time adjustment request.

Paging adjustment in a multiple subscriber identity module device

Methods, systems, and devices for wireless communication are described in relation to a Multiple Subscriber Identify Module (MSIM) user equipment (UE). The UE associated with multiple network subscriptions may determine a first timing of a first set of paging occasions associated with a first network subscription of the multiple network subscriptions, wherein the first network subscription is associated with a first network; determine a second timing of a second set of paging occasions associated with a second network subscription of the multiple network subscriptions, wherein the second network subscription is associated with a second network; compare the first timing and the second timing; detect a paging time adjustment condition based on the comparing; and transmit, based on detecting the paging time adjustment condition, a paging frame offset adjustment request to the first network, the second network or both.

A multi-SIM UE may perform network SIB acquisition for each network subscription. However, if the multi-SIM UE employs subscriptions for the same network these operations may be performed redundantly. By identifying that the UE is employing multiple subscriptions, the UE and network can perform a single SIB acquisition for multiple subscriptions, which reduces power consumption and optimize network signaling overhead. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE configured to determine that the UE is associated with a plurality of network subscriptions, the plurality of network subscriptions being associated with a network, select a network subscription from the plurality of network subscriptions, perform a random-access procedure using the network subscription, receive system information broadcast in response to the random-access procedure, and configure the plurality of network subscriptions at the UE based on the system information.

Sib acquisition optimizations for intra-PLMN multi-SIM UEs

Methods, systems, and devices for wireless communications are described that provide for call continuity following radio link failure (RLF) through re-establishment of a voice call using a same or different radio access technology (RAT) before the call is dropped. Upon detection of RLF on a connection supporting a voice call, a UE may initiate a drop call timer and scan for available connections. The voice call may be attempted to be re-established if a connection is available on using a RAT of an existing connection. The voice call in such cases may continue without the call being dropped. Upon expiration of the drop call timer, the UE may attempt to establish a connection using a RAT identified during the duration of the drop call timer.

Voice call management techniques in wireless communications

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a first set of synchronization signal blocks (SSBs) for a first subscription of the UE and a second set of SSBs for a second subscription of the UE; select a first SSB, from the first set of SSBs, for communications of the first subscription; identify a third set of SSBs by modifying the second set of SSBs to remove one or more SSBs from the second set of SSBs, at least one SSB of the one or more SSBs overlapping in time with the first SSB; select a second SSB from the third set of SSBs; and monitor the second SSB for paging messages of the second subscription. Numerous other aspects are provided.

Page collision avoidance for 5G NR single receiver multiple subscriber identity module devices

When a user equipment performs inter-cell measurement, it may desire to measure signal quality and signal level of a source radio access technology (RAT) cell and a target cell. The signal quality measurement may be Squal and the signal level measurement may be Srxlev. Because Squal is not defined for TD-SCDMA, a new measurement criteria is defined to allow proper comparison of source RAT cell measurements with target RAT cell measurements when a user equipment is considering switching to a target cell.

Inter-system cell reselection in TD-SCDMA systems

Certain aspects of the present disclosure relate to techniques for improving a circuit-switched fallback (CSFB) user experience. In aspects, methods and systems for autonomously returning a user equipment (UE) from a 2G (2generation)/3G (3generation) network to an LTE (Long Term Evolution) network are provided. The UE may store a flag to note whether a current circuit switched (CS) call in the 2G/3G network is a result of a CSFB. The UE, in response to detecting a termination of the current CS call in the 2G/3G network and determining that the terminated call was a CSFB call (e.g., from the status of the flag), may trigger a mobility mechanism to autonomously return the UE to the LTE network.

Methods and apparatus for improving a call fallback user experience

The present disclosure presents a method and an apparatus for inter radio access technology (IRAT) cell reselection. For example, the method may include identifying that a user equipment (UE) in an idle or a discontinuous reception (DRX) mode is camped on a cell of a first RAT, determining that the cell the UE is camped on is not broadcasting any neighbor cell of a second RAT, scanning for one or more frequencies of the second RAT based on the determination, and triggering a cell reselection to a cell of the second RAT, wherein the cell of the second RAT is associated with a frequency identified during the scanning. As such, an autonomous IRAT cell reselection may be achieved.

Method and apparatus for inter radio access technology (IRAT) cell reselection

Methods and apparatus for wireless communication in a wireless communication network include maintaining a Public Land Mobile Network (PLMN) list and receiving an information request from a network, wherein the information request is associated with configuration parameters associated with the PLMN list. Aspects of the methods and apparatus configuring the UE based on the configuration parameters associated with the PLMN list. Aspects also include replying to the network that the UE is configured with the configuration parameters associated with the PLMN list.

Apparatus and method for signaling network capabilities for a wireless device

Apparatus and method for wireless communication in a wireless communication network include operating a wireless device on a first wireless communication technology and detecting a first cell in first frequency of a second wireless communication technology. The aspects also include determining the detected cell of the second wireless communication technology satisfies a first reselection criterion based on a first measurement and identifying a second frequency of the second wireless communication technology as an undetected frequency based on monitoring the second frequency without detecting a second cell. Aspects also include expediting a determination of whether to perform cell reselection to the second wireless communication technology based on the undetected frequency and the detected cell of the second wireless communication technology satisfying the first reselection criterion and determining to reselect to the detected cell of the second wireless communication technology.

Apparatus and method of inter-radio access technology measurement scheduling based on an undetected frequency

Embodiments are provided herein for reducing neighbor cell monitoring by a mobile communication device that may include measuring a channel condition of the cell serving the idle network subscription, determining whether the measured channel condition of the cell serving the idle network subscription satisfies a threshold value, and in response to determining that the measured channel condition of the cell serving the idle network subscription satisfies the threshold value, reducing a frequency at which neighbor cells associated with the idle network subscription are monitored and monitoring the neighbor cells associated with the idle network subscription according to the reduced frequency.

System and method for controlling neighbor cell monitoring activity based on conditions of serving cell in a mobile communication device

Apparatus and method for wireless communication in a wireless communication network includes operating a wireless device on a first wireless communication technology. Aspects also include detecting a cell of a second wireless communication technology and determining the detected cell of the second wireless communication technology satisfies a first reselection criterion based on a first measurement. Still further the aspects includes expediting a determination of whether to perform cell reselection to the second wireless communication technology based on the detected cell of the second wireless communication technology satisfying the first reselection criterion. Additionally, aspects include determining to reselect to the detected cell of the second wireless communication technology when the at least one new measurement satisfies a second reselection criterion for the reselection time period.

Apparatus and method of inter-radio access technology measurement scheduling

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San Diego, CA, United States of America

Krishna Rao Mandadapu