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公开(公告)号：US11197344B2
公开(公告)日：2021-12-07
申请号：US16638110
申请日：2018-08-09
Applicant: Qualcomm Incorporated
Inventor： Ruiming Zheng , Yu-Ting Yu , Keiichi Kubota , Gavin Bernard Horn
Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a transmitting device may identify a Radio Link Control (RLC) service data unit (SDU) to be transmitted to a receiving device. In some cases, the transmitting device may not have access to sufficient resources to transmit the entire RLC SDU. As such, the transmitting device may segment the RLC SDU into RLC SDU segments, and the transmitting device may transmit the RLC SDU segments to the receiving device. If an RLC layer at the receiving device receives one or more RLC SDU segments out of sequence, the RLC layer may initiate a reassembly (or reordering) timer. The RLC layer may reassemble the successfully received RLC SDU segments to be passed to upper layers. Once the timer expires, the RLC layer may declare that the missing RLC SDU segments are lost.
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公开(公告)号：US10972947B2
公开(公告)日：2021-04-06
申请号：US16373205
申请日：2019-04-02
Applicant: QUALCOMM Incorporated
Inventor： Arun Prasanth Balasubramanian , Masato Kitazoe , Yu-Ting Yu , Keiichi Kubota
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a message that indicates a change from an evolved universal mobile telecommunications system (UMTS) terrestrial radio access (E-UTRA) packet data convergence protocol (PDCP) to a New Radio (NR) PDCP, wherein the message includes an instruction to perform an intra-cell handover; generate one or more security keys based at least in part on receiving the message that includes the instruction to perform the intra-cell handover; and communicate using the one or more security keys after the intra-cell handover is performed. Numerous other aspects are provided.
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公开(公告)号：US10798775B2
公开(公告)日：2020-10-06
申请号：US16057265
申请日：2018-08-07
Applicant: QUALCOMM Incorporated
Inventor： Yu-Ting Yu , Keiichi Kubota
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may determine a deactivation of a duplication bearer for a packet data convergence protocol (PDCP) connection, wherein a first link and a second link are configured for the duplication bearer. The device may schedule data communication for the first link and not for the second link based at least in part on the deactivation of the duplication bearer. Numerous other aspects are provided.
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公开(公告)号：US20200245400A1
公开(公告)日：2020-07-30
申请号：US16638110
申请日：2018-08-09
Applicant: Qualcomm Incorporated
Inventor： Ruiming Zheng , Yu-Ting Yu , Keiichi Kubota , Gavin Bernard Horn
Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a transmitting device may identify a Radio Link Control (RLC) service data unit (SDU) to be transmitted to a receiving device. In some cases, the transmitting device may not have access to sufficient resources to transmit the entire RLC SDU. As such, the transmitting device may segment the RLC SDU into RLC SDU segments, and the transmitting device may transmit the RLC SDU segments to the receiving device. If an RLC layer at the receiving device receives one or more RLC SDU segments out of sequence, the RLC layer may initiate a reassembly (or reordering) timer. The RLC layer may reassemble the successfully received RLC SDU segments to be passed to upper layers. Once the timer expires, the RLC layer may declare that the missing RLC SDU segments are lost.
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公开(公告)号：US10687263B2
公开(公告)日：2020-06-16
申请号：US16275214
申请日：2019-02-13
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
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.
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Patent Agency Ranking
公开(公告)号：US20200169927A1
公开(公告)日：2020-05-28
申请号：US16777785
申请日：2020-01-30
Applicant: QUALCOMM Incorporated
Inventor： Keiichi Kubota , Tingfang Ji , Naga Bhushan , Gavin Bernard Horn , John Edward Smee , Joseph Binamira Soriaga , Wei Zeng
IPC: H04W36/00 , H04W48/12 , H04B7/0413 , H04L12/18
Abstract: A wireless network may provide system information by either a fixed periodic broadcast or broad-beam transmission or in response to a request by a user equipment (UE). The wireless network may broadcast (or broad-beam transmit) a signal that indicates to the UEs within a cell or zone coverage area that system information is to be transmitted on a fixed periodic schedule or in response to a request sent by one or more UEs.
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公开(公告)号：US20200084705A1
公开(公告)日：2020-03-12
申请号：US16562024
申请日：2019-09-05
Applicant: QUALCOMM Incorporated
Inventor： Huilin Xu , Peter Pui Lok Ang , Heechoon Lee , Keiichi Kubota
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may obtain access to a base station by performing an initial access procedure within an initial access bandwidth. In some cases, the UE may monitor for a cell specific configuration in the initial access bandwidth that indicate one or more first common search spaces within the initial access bandwidth that the UE may monitor for control information. Additionally, the UE may receive dedicated signaling after the initial access procedure that indicates a downlink bandwidth part (BWP) and one or more second common search spaces within the downlink BWP to monitor for control information. Accordingly, the UE may monitor the first common search spaces, the second common search spaces, or both based on the dedicated signaling.
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公开(公告)号：US10542547B2
公开(公告)日：2020-01-21
申请号：US15017476
申请日：2016-02-05
Applicant: QUALCOMM Incorporated
Inventor： Keiichi Kubota , Gavin Bernard Horn , Chih Ping Li
Abstract: Systems and techniques are disclosed for selecting service-specific cells that considers additional information about service availability at the cells. A base station stores service availability information in system information. A UE searching for a service-specific cell on which to camp receives the system information with service availability. The UE analyzes its service requirements against the service availability as well as measured radio conditions and selects a cell that enables service-specific support on which to camp. When a change occurs to availability of the service support at the base station, it notifies the camped UE of the change and the UE obtains the changed system information to determine whether to reselect a different cell on which to camp. When a service-specific cell is not available, the UE may select a suitable cell for normal service and periodically perform cell reselection in an attempt to again camp on a service-specific cell.
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公开(公告)号：US20190387561A1
公开(公告)日：2019-12-19
申请号：US16440220
申请日：2019-06-13
Applicant: QUALCOMM Incorporated
Inventor： Karthika Paladugu , Yu-Ting Yu , Gavin Bernard Horn , Keiichi Kubota
Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications system may support multi-connectivity for a user equipment (UE) with multiple distributed units (DUs) under one central unit (CU), the DUs and the CU belonging to a base station. The UE may establish radio resource control (RRC) connections with multiple cell groups corresponding to multiple DUs under the CU. The UE may transmit measurement reports that provide measurement information for cells in proximity to the UE. The UE may maintain a set of active cell groups and a set of inactive cell groups. In some cases, one or more cell groups may be identified as controlling cell groups used to transmit control information. In some examples, the UE may replicate an uplink packets and transmit the uplink packet and replicates on multiple cell groups. In some cases, the UE may aggregate an uplink transmission among multiple cell groups.
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公开(公告)号：US20190230513A1
公开(公告)日：2019-07-25
申请号：US16239102
申请日：2019-01-03
Applicant: QUALCOMM Incorporated
Inventor： Peter Pui Lok ANG , Wanshi Chen , Prashanth Haridas Hande , Keiichi Kubota
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may transmit and a user equipment (UE) may receive cloned bandwidth part configuration information. In some aspects, the UE may determine a linkage between a primary bandwidth part and the cloned bandwidth part. In some aspects, the BS may transmit and the UE may receive a downlink control information message identifying the primary bandwidth part to signal a bandwidth part switch for the primary bandwidth part and a first bandwidth part or identifying the cloned bandwidth part to signal the bandwidth part switch for the primary bandwidth part and a second bandwidth part. In some aspects, the UE may perform the bandwidth part switch based at least in part on the downlink control information message. Numerous other aspects are provided.
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