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.

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：US11350444B2

公开(公告)日：2022-05-31

申请号：US16990962

申请日：2020-08-11

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Wanshi Chen ,  Seyedkianoush Hosseini ,  Alberto Rico Alvarino ,  Peter Gaal ,  Xiao Feng Wang

IPC: H04W72/14 ,  H04L5/14 ,  H04W8/24 ,  H04W24/08 ,  H04W72/12 ,  H04W76/15 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station and while operating in a dual connectivity mode, an uplink grant in a first subframe of a set of subframes. The uplink grant may schedule transmission of uplink data. The UE may determine a second subframe of the set of subframes to transmit the uplink data and a third subframe of the set of subframes to monitor for feedback associated with transmission of the uplink data. The second subframe and the third subframe may be determined based on combinations of a primary cell time division duplex (TDD) uplink-downlink (UL-DL) configuration and a DL-reference UL-DL configuration. each of the combinations may have at least three uplink transmission subframes or three downlink monitoring subframes within a ten-subframe cycle. The UE may thus perform wireless communications in accordance with the transmission timelines.