公开(公告)号：US11432332B2

公开(公告)日：2022-08-30

申请号：US16652140

申请日：2018-09-25

Applicant: Qualcomm Incorporated

Inventor： Alberto Rico Alvarino ,  Wanshi Chen ,  Xiao Feng Wang ,  Le Liu ,  Umesh Phuyal ,  Peng Cheng ,  Chao Wei ,  Hao Xu

IPC: H04W74/08 ,  H04L27/26

Abstract: Methods, systems, and devices for increasing physical random access channel (PRACH) capacity using orthogonal cover codes (OCCs) in wireless communications systems are described. A base station may transmit a PRACH configuration that indicates PRACH resources for system access, for example, in a system information block (SIB). A user equipment (UE) may receive the PRACH configuration, and may identify PRACH resources that support OCCs for system access. For example, PRACH configurations with small time domain spacing between PRACH resources may support OCCs. The UE may determine whether to transmit random access (RACH) preamble messages using OCCs in the PRACH resources, and may transmit a RACH preamble message to the base station based on the determination. In some cases, the base station may additionally indicate PRACH resources not configured for OCCs, and the UE may determine which set of resources to transmit in based on one or more parameters.

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：US11369001B2

公开(公告)日：2022-06-21

申请号：US16583009

申请日：2019-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Le Liu

IPC: H04L5/00 ,  H04L5/10 ,  H04W76/30 ,  H04W68/02 ,  H04W74/02 ,  H04W72/04 ,  H04W74/08 ,  H04W76/27 ,  H04W76/36 ,  H04W36/08 ,  H04W72/12 ,  H04W68/00 ,  H04J13/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a connection release message, the connection release message including a resource indicator indicating that a set of resources are to be used for grant-free uplink transmissions by the UE while operating in a disconnected state. The UE may transition from a connected state to a disconnected state based at least in part on the connection release message. The UE may perform, while operating in the disconnected state, the grant-free uplink transmissions using the set of resources.

公开(公告)号：US11356141B2

公开(公告)日：2022-06-07

申请号：US16865214

申请日：2020-05-01

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Ayan Sengupta ,  Le Liu ,  Umesh Phuyal

IPC: H04B1/7143 ,  H04W76/27 ,  H04B1/713 ,  H04L1/18 ,  H04L5/00 ,  H04W8/24 ,  H04W24/08 ,  H04W52/02 ,  H04W72/04 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described that support techniques for wireless communications using preconfigured uplink resources. Generally, the described techniques provide for enhancement of communication features including frequency hopping, an uplink control channel, coverage enhancement, timing advance, uplink power control, reconfiguration, a downlink control channel, a downlink data channel, retransmissions, or subcarrier spacing for a UE in idle mode. The UE may receive an uplink resource configuration for uplink communications in idle mode, the uplink resource configuration comprising an indicator associated with allocated resources for the uplink communications in idle mode and a set of parameters. The UE may transmit, while in idle mode, a first uplink transmission associated with a transport block on the allocated resources and according to one or more of the parameters, and monitor for a response to the first uplink transmission.

公开(公告)号：US11343652B2

公开(公告)日：2022-05-24

申请号：US16730642

申请日：2019-12-30

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Le Liu ,  Alberto Rico Alvarino ,  Prasad Reddy Kadiri ,  Umesh Phuyal ,  Wanshi Chen ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo

IPC: H04H20/71 ,  H04W4/06 ,  H04W72/04 ,  H04L12/18

Abstract: This disclosure provides methods, devices, and systems for resource selection supporting user equipment (UE)-shared multicast feedback. In some systems, a UE and a base station may support multicast communications. The base station may configure a set of physical uplink control channel (PUCCH) resources that the UE may use for multicast feedback messages. The base station may transmit an indication of the set of PUCCH resources to the UE, and the UE may determine to use a PUCCH resource of the set of PUCCH resources based on one or more indications from the base station. The UE may fail to receive a multicast message from the base station and may transmit a UE-shared negative acknowledgment (NACK) feedback message. The base station may re-transmit the multicast message according to a set of transmission parameters that is based on which PUCCH resource was used by one or more UEs for multicast NACK feedback.

公开(公告)号：US11330478B2

公开(公告)日：2022-05-10

申请号：US16532195

申请日：2019-08-05

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Haris Zisimopoulos ,  Alberto Rico Alvarino ,  Mungal Singh Dhanda ,  Amer Catovic ,  Umesh Phuyal

IPC: H04B7/00 ,  H04W36/00 ,  H04W36/08 ,  H04W4/80 ,  H04W8/24

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine a UE capability for available radio access technologies. The UE may determine which of the available radio access technologies are suitable for idle cell reselection (e.g., inter-radio access technology idle cell reselection, intra-radio access technology idle cell reselection) according to the UE capabilities, which may be related to a UE category or UE usage mode (e.g., voice centric mode, data centric mode) of the UE, etc. The UE may transmit a signal indicating the UE capabilities to a network entity (e.g., a serving cell). The network entity may receive the signaling and determine suitable radio access technologies for the idle cell reselection, and transmit a set of parameters in a message for the UE to use as part of the idle cell reselection.

公开(公告)号：US20220038151A1

公开(公告)日：2022-02-03

申请号：US17369724

申请日：2021-07-07

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Le Liu ,  Bharat Shrestha ,  Peter Gaal ,  Liangping Ma ,  Umesh Phuyal ,  Jun Ma

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08 ,  H04W24/10 ,  H04W36/06 ,  H04W76/19

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a network may establish communications over a directional beam. The UE may receive, from the network, a configuration of one or more channel sounding messages for one or more directional beams, where each directional beam of the one or more directional beams is associated with a set of narrowband carriers, and each of the one or more channel sounding messages being configured for transmission on a narrowband carrier of the set of narrowband carriers. The UE may determine a trigger for transmitting the one or more channel sounding messaged based at least in part on the configuration and transmit, to the network, the one or more channel sounding messages on respective narrowband carriers in accordance with the trigger and the configuration.

公开(公告)号：US20220007248A1

公开(公告)日：2022-01-06

申请号：US17324982

申请日：2021-05-19

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Liangping Ma ,  Ayan Sengupta ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Jun Ma

IPC: H04W36/08 ,  H04W36/00 ,  H04W24/08 ,  H04W72/02 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) receives one or more downlink signals using a first beam associated with a first set of frequency resources, switches from the first beam to a second beam associated with a second set of frequency resources, selects a set of frequency resources for transmitting feedback information associated with the one or more downlink signals, and transmits the feedback information to the base station using the selected set of frequency resources. In some examples, the UE transmits one or more uplink signals to a base station using a first beam associated with a first set of frequency resources, switches from the first beam to a second beam associated with a second set of frequency resources, and determines whether to send a retransmission of the one or more uplink signals based at least in part on switching.

公开(公告)号：US20210321441A1

公开(公告)日：2021-10-14

申请号：US17224829

申请日：2021-04-07

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Xiao Feng Wang ,  Umesh Phuyal ,  Bharat Shrestha ,  Le Liu ,  Ayan Sengupta ,  Jun Ma ,  Liangping Ma

IPC: H04W72/12 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A receiving device may use enhanced techniques for determining whether a transmission is scheduled to include new data when a mode for reporting acknowledgment feedback is disabled for one or more hybrid automatic repeat request (HARQ) processes used by the receiving device. An enhanced technique may include increasing a quantity of bits used to convey an indication of whether a scheduled data transmission includes new data. An enhanced technique may include monitoring a duration between transmissions scheduled by different control messages based on a timing parameter that indicates a maximum time between transmissions of a data set and corresponding transmission including the data set.

公开(公告)号：US20210273748A1

公开(公告)日：2021-09-02

申请号：US17323747

申请日：2021-05-18

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Umesh Phuyal ,  Peter Gaal

IPC: H04L1/18 ,  H04W28/02 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, devices may implement transmission repetitions for transport blocks (TBs) to improve reception reliability. However, to support low latency, TBs may be transmitted in any transmission time interval (TTI) within a subframe. The systems may implement process to handle these TB repetitions. In some cases, a device may receive, during a TTI of a subframe, control information including an indication of transmission repetitions of a TB for a plurality of TTIs, identify a quantity of transmission repetitions of the TB based on the control information, and monitor for the transmission repetitions of the TB.