公开(公告)号：US11476982B2

公开(公告)日：2022-10-18

申请号：US17326752

申请日：2021-05-21

Applicant: QUALCOMM incorporated

Inventor： Ayan Sengupta ,  Kazuki Takeda ,  Alberto Rico Alvarino ,  Le Liu ,  Peter Gaal ,  Wanshi Chen ,  Tao Luo ,  Juan Montojo ,  Xiaoxia Zhang ,  Mostafa Khoshnevisan ,  Prasad Reddy Kadiri ,  Umesh Phuyal ,  Bharat Shrestha

IPC: H04L1/18 ,  H04L27/26 ,  H04L1/16 ,  H04W4/06

Abstract: Methods, systems, and devices for wireless communications are described that support multiplexing multicast and unicast feedback. A base station may provision different subsets of resources from a set of resources for multicast feedback message transmission based on channel metric(s) of a user equipment (UE). The set of resources may include a plurality of subsets of resources, with each subset of resources being associated with a corresponding channel metric or range of channel metrics associated with each UE receiving the multicast transmission. A UE may determine that a feedback indication is to be provided in response to the multicast transmission, and select a subset of resources from the plurality of subsets of resources based on its own channel metric. The UE may multiplex the multicast feedback, an indication of the selected subset, and unicast feedback in a multiplexed feedback transmission to the base station.

公开(公告)号：US20220322477A1

公开(公告)日：2022-10-06

申请号：US17220902

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/18 ,  H04W56/00 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. The method may include establishing a connection between the UE and a network node of a non-terrestrial network, identifying, based on a synchronization failure event and while the UE is in a connected mode in accordance with establishing the connection, that a location failure condition has occurred for the connection, and performing, at least in part in response to the location failure condition, one or more actions of a location failure recovery procedure to restore a synchronization associated with the connection.

公开(公告)号：US20220322406A1

公开(公告)日：2022-10-06

申请号：US17220749

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Kazuki Takeda ,  Alberto Rico Alvarino ,  Wanshi Chen

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may activate or release one or more semi-persistent scheduling (SPS) configurations for group-common downlink shared channels based on signaling from a base station. For example, the UE may receive downlink control information (DCI) from the base station that includes a feedback process field, where a value of the feedback process field indicates at least one of one or more SPS configurations is to be activated. In some examples, the base station may transmit the DCI in a group-common downlink control channel or in a UE-specific downlink control channel. Additionally, the base station may transmit a deactivation message to the UE to indicate for the UE to release one or more activated SPS configurations, where the deactivation message is transmitted in a group-common downlink control channel or a UE-specific downlink control channel.

公开(公告)号：US11463956B2

公开(公告)日：2022-10-04

申请号：US16948986

申请日：2020-10-08

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Peter Pui Lok Ang

IPC: G08C17/00 ,  H04W52/02

Abstract: A method, an apparatus, a base station, a user equipment (UE), and a computer program product for wireless communication are provided. The base station may encode a wakeup signal so that a preamble of the wakeup signal indicates whether the wakeup signal is relevant to the UE. The UE may select a technique for detecting the wakeup signal based at least in part on a partial, full, or no synchronization. In some aspects, the wakeup signal may be encoded with a system frame number. In some aspects, wakeup signals for guardband/standalone UEs are provided. Numerous other aspects are provided.

公开(公告)号：US11438748B2

公开(公告)日：2022-09-06

申请号：US17035647

申请日：2020-09-28

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Le Liu

IPC: H04W4/80 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08 ,  H04W68/00 ,  H04W76/11 ,  H04W8/24

Abstract: The described techniques relate to methods, systems, devices, and apparatuses that support narrowband reference signal (NRS) configuration for non-anchor carriers. Generally, the described techniques provide for increasing the length of an NRS scrambling sequence for non-anchor carriers. For example, the NRS scrambling sequence initialization equation may be a function of system frame number. A base station may transmit to a user equipment (UE) a non-anchor carrier configuration indicating that the NRS scrambling sequence is extended with respect to other NRS scrambling sequences. For example, the non-anchor carrier configuration may indicate the scrambling sequence initialization for the NRS. In some examples, the length of the NRS scrambling sequence is increased by extending the number of possible initializations. The base station and UE may communicate based on the extended length of the NRS scrambling sequence for non-anchor carriers of the NRS.

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：US11425724B2

公开(公告)日：2022-08-23

申请号：US16909412

申请日：2020-06-23

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Raghavendra Shyam Ananda ,  Srikanth Menon ,  Murali Menon

IPC: H04W72/04 ,  H04L1/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may signal, to a base station, a capability of the UE relating to carrier aggregation for a particular category or class of the UE, such as for narrowband Internet of Things (NB-IoT) UEs. The UE may receive, from the base station, a configuration for carrier aggregation for the particular category or class of the UE based at least in part on the capability of the UE relating to carrier aggregation for the particular category or class of the UE. The UE may communicate with the base station using carrier aggregation based at least in part on the configuration for carrier aggregation for the particular category or class of the UE. Numerous other aspects are provided.

公开(公告)号：US20220240249A1

公开(公告)日：2022-07-28

申请号：US17248555

申请日：2021-01-28

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino

IPC: H04W72/04 ,  H04W24/08 ,  H04L5/00 ,  H04W56/00 ,  H04W52/32

Abstract: Wireless communications systems and methods related to control resource set (CORESET) configuration for narrowband new radio (NR) are provided. A user equipment (UE) performs physical downlink control channel (PDCCH) monitoring in a first portion of a CORESET. The first portion is within a channel bandwidth, and the CORESET includes a second portion outside the channel bandwidth. The UE receives a system information block (SIB) based on the PDCCH monitoring.

公开(公告)号：US20220225384A1

公开(公告)日：2022-07-14

申请号：US17148410

申请日：2021-01-13

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Le Liu ,  Ayan Sengupta ,  Alberto Rico Alvarino

IPC: H04W72/12 ,  H04L12/18 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured with a mapping between downlink control information (DCI) codepoint values, multicast configurations, and unicast configurations. A DCI may then signal to the UE to apply one of a multicast configuration or a unicast configuration to receive a shared data channel transmission. For example, for a given DCI field of a group-common downlink control channel for multicast data, one or some DCI codepoint values may be associated with values configured for a multicast configuration, while remaining codepoints are associated with values configured for a unicast configuration. In some implementations, the UE may identify which multicast configuration or unicast configuration to apply based on the mapping, a type of data transmission scheduled by the DCI, specified values for the DCI codepoint values, whether the shared data channel transmission is a retransmission, or a combination thereof.

公开(公告)号：US20220224374A1

公开(公告)日：2022-07-14

申请号：US17705579

申请日：2022-03-28

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Peter Pui Lok Ang ,  Huilin Xu ,  Hung Dinh Ly ,  Renqiu Wang

IPC: H04B1/7143 ,  H04W72/04 ,  H04L1/18 ,  H04W74/08 ,  H04W24/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit uplink transmissions according to a frequency hopping pattern. The UE may identify that a first set of uplink transmissions are to be transmitted to a base station by a first set of resources (e.g., a first set of slots, a first set of frequency resources) as indicated by the frequency hopping pattern. The UE may further identify, based on the frequency hopping pattern, that a second set of uplink transmissions are to be transmitted to the base station by a second set of resources (e.g., a second set of slots, a second set of frequency resources). The first set of slots and the second set of slots may each include more than one slot. Additionally, the first and second set of resources may be within a same bandwidth part or in different bandwidth parts.