公开(公告)号：US11438812B2

公开(公告)日：2022-09-06

申请号：US16450771

申请日：2019-06-24

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Amer Catovic ,  Umesh Phuyal ,  Masato Kitazoe ,  Karthika Paladugu ,  Alberto Rico Alvarino

IPC: H04W36/00 ,  H04L69/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a source base station (BS), an indication that the UE is to perform a conditional handover from the source BS to a target BS and is to perform at least one of: a two protocol stack handover from the source BS to the target BS or a dual connectivity handover from the source BS to the target BS. The UE may perform the conditional handover and at least one of the two protocol stack handover or the dual connectivity handover based at least in part on the indication. Numerous other aspects are provided.

公开(公告)号：US11388642B2

公开(公告)日：2022-07-12

申请号：US16900142

申请日：2020-06-12

Applicant: QUALCOMM Incorporated

Inventor： Karthika Paladugu ,  Gavin Bernard Horn ,  Prashanth Haridas Hande ,  Keiichi Kubota ,  Prasad Reddy Kadiri ,  Alberto Rico Alvarino ,  Masato Kitazoe ,  Umesh Phuyal ,  Supratik Bhattacharjee

IPC: H04W36/18 ,  H04W36/00 ,  H04W36/08 ,  H04W76/27 ,  H04W12/04 ,  H04W12/033 ,  H04W12/106

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment concurrently communicates with a source base station (BS) and a target BS on a connection with the source BS and a connection with the target BS as part of a make-before-break (MBB) handover procedure; and performs a common packet data convergence protocol (PDCP) function for the connection with the source BS and the connection with the target BS before the connection with the source BS is released as part of the MBB handover procedure. Numerous other aspects are provided.

公开(公告)号：US11197251B2

公开(公告)日：2021-12-07

申请号：US15601727

申请日：2017-05-22

Applicant: QUALCOMM Incorporated

Inventor： Valentin Alexandru Gheorghiu ,  Peter Gaal ,  Masato Kitazoe

IPC: H04W56/00 ,  H04W8/14 ,  H04W28/20 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08 ,  H04W88/02

Abstract: As wireless communication technology advances, the bandwidth usage of wireless communications systems becomes increasingly flexible. For example, different user equipment (UEs) may support different bandwidths or radio frequency capabilities. However, a scheduling entity may not know wireless capabilities or characteristics (e.g., supported bandwidths, RF chain configurations, reconfiguration times, and/or the like) of the UEs for which the scheduling entity is to manage communications, which may hamper the ability of the scheduling entity to take advantage of the advances in flexible bandwidth usage described above. Techniques for synchronization, scheduling, bandwidth allocation, and reference signal transmission in a wireless communications system associated with flexible bandwidth allocation, such as a 5G network, are described herein.

公开(公告)号：US11166202B2

公开(公告)日：2021-11-02

申请号：US17248099

申请日：2021-01-08

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Masato Kitazoe ,  Gavin Bernard Horn ,  Shyamal Ramachandran ,  Arvind Vardarajan Santhanam ,  Tom Chin ,  Min Wang ,  Kuo-Chun Lee

IPC: H04W4/00 ,  H04W36/00 ,  H04W36/12 ,  H04W36/08

Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.

公开(公告)号：US11128341B2

公开(公告)日：2021-09-21

申请号：US16562930

申请日：2019-09-06

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Hao Xu ,  Alberto Rico Alvarino ,  Peter Gaal ,  Masato Kitazoe ,  Sharad Sambhwani

IPC: H04B1/713 ,  H04L5/00 ,  H04W4/70 ,  H04L1/00 ,  H04W68/00 ,  H04W76/27 ,  H04B1/7156 ,  H04W68/04 ,  H04W68/02 ,  H04W74/08 ,  H04W88/06

Abstract: Coverage enhancements and coverage mode switching related optimizations are discussed for user equipments (UEs) that may switch between various coverage extension (CE) and non-CE modes of operation. In such enhancements, paging uncertainty and delays may be reduced by sending pages either simultaneously or using historical information over multiple coverage modes available to UEs. Random access procedures may be improved by providing CE mode random access procedures that are available when normal mode random access attempts fail and before declaring radio link failure. Additional aspects include improvements for more advanced UEs to improve coverage within normal mode operations by leveraging techniques used for narrowband CE mode operations, including transmission repetition and gapless transmission scheduling over hopped narrowband frequencies.

公开(公告)号：US11109438B2

公开(公告)日：2021-08-31

申请号：US16018475

申请日：2018-06-26

Applicant: QUALCOMM Incorporated

Inventor： Prasad Kadiri ,  Umesh Phuyal ,  Masato Kitazoe ,  Srinivasan Balasubramanian ,  Arvind Santhanam ,  Aziz Gholmieh ,  Arnaud Meylan

IPC: H04W4/00 ,  H04W76/27 ,  H04W24/10 ,  H04W12/00 ,  H04W76/15 ,  H04W76/18 ,  H04W74/08 ,  H04W76/19 ,  H04W76/14

Abstract: In an aspect, while a mobile device is operating in a RRC_Idle State, an RRC_Suspended State, an RLF State and/or an RLF Recovery Procedure State, the mobile device may transmit a connection establishment message to a base station of a plurality of base stations. In an aspect, the connection establishment message includes information that indicates whether the mobile device has information associated with signals transmitted by one or more base stations of the plurality of base stations. The mobile device may initiate transmission of the information associated with the signals to the base station subsequent to establishing a security context for the connection between the mobile device and the base station. In some aspects, the mobile device may scramble the information associated with signals and transmit the information associated with signals to the base station prior to establishing a security context for a connection between the mobile device and the base station.

公开(公告)号：US11064549B2

公开(公告)日：2021-07-13

申请号：US16534694

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Tingfang Ji ,  John Edward Smee ,  Masato Kitazoe ,  Keiichi Kubota ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Hung Dinh Ly ,  Valentin Alexandru Gheorghiu ,  Renqiu Wang

IPC: H04W76/18 ,  H04L5/00 ,  H04W76/27 ,  H04L27/26 ,  H04W72/04 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described that provide for configuration of channel bandwidth that may be specific to a particular user equipment (UE). A UE may be configured with a channel bandwidth that is less than or equal to a channel bandwidth of the serving base station, and may also be different than a channel bandwidth of one or more other UEs that are served by the base station. The base station may signal the UE-specific channel bandwidth in UE-specific signaling, such as UE-specific radio resource control (RRC) signaling.

公开(公告)号：US11044111B2

公开(公告)日：2021-06-22

申请号：US15646018

申请日：2017-07-10

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Peter Gaal ,  Masato Kitazoe

IPC: H04L12/18 ,  H04L5/00 ,  H04W4/00 ,  H04W72/04 ,  H04W88/02 ,  H04W72/00 ,  H04W4/70 ,  H04W4/06

Abstract: Aspects of the present disclosure provided techniques that for wireless communications by a user equipment (UE). An exemplary method, performed by a UE, generally includes obtaining a first system information message from a wireless network configured to utilize Multimedia Broadcast multicast service Single Frequency Network (MBSFN) subframes and non-MBSFN subframes, determining, based on the first system information message, a first set of valid subframes and a first set of non-MBSFN subframes, obtaining a second system information message from the wireless network based on the first set of valid subframes and the first set of non-MBSFN subframes, and accessing the wireless network based on the first system information message and the second system information message.

公开(公告)号：US11025401B2

公开(公告)日：2021-06-01

申请号：US15957526

申请日：2018-04-19

Applicant: QUALCOMM Incorporated

Inventor： Prasad Kadiri ,  Masato Kitazoe ,  Umesh Phuyal

IPC: H04W76/27 ,  H04W24/10 ,  H04L5/00 ,  H04W48/12 ,  H04W76/20 ,  H04W36/00 ,  H04W36/04

Abstract: Certain aspects of the present disclosure relate to techniques for secondary cell (SCell) configuration signaling and activation procedures. For example, certain aspects provide a method for configuring a plurality of secondary cells of a base station for a user equipment. The method includes receiving, at the user equipment from the base station, a message including at least one configuration parameter applicable to the plurality of secondary cells. The method further includes configuring the user equipment for the plurality of secondary cells based on the at least one configuration parameter.

公开(公告)号：US11012929B2

公开(公告)日：2021-05-18

申请号：US16031961

申请日：2018-07-10

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Ozcan Ozturk ,  Gavin Bernard Horn ,  Masato Kitazoe ,  Lenaig Genevieve Chaponniere ,  Haris Zisimopoulos ,  Stefano Faccin ,  Hong Cheng ,  Miguel Griot

IPC: H04W48/18 ,  H04W76/18 ,  H04W76/11 ,  H04W16/14 ,  H04W48/02 ,  H04W48/12 ,  H04W88/12

Abstract: Methods, systems, and devices for wireless communication are described that provide for identification, on a per-PLMN basis of a type of core network associated with each PLMN in a list of networks associated with a base station. A user equipment (UE) may receive the list of networks and, based at least in part on the type(s) of core network accessible via each PLMN and a capability of the UE, initiate a connection establishment with a PLMN and associated core network. In some cases, UEs that are not capable of connections with a first type of core network (e.g., a 5G core network) may be restricted from camping on a cell or PLMN that may provide only connections with the first type of core network (e.g., a 4G core network).