公开(公告)号：US10998995B2

公开(公告)日：2021-05-04

申请号：US16800757

申请日：2020-02-25

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Peter Gaal ,  Kapil Bhattad

IPC: H04J11/00 ,  H04W72/08 ,  H04W28/04 ,  H04W74/08 ,  H04L1/06 ,  H04L5/00 ,  H04L25/02

Abstract: A base station (BS) may transmit, and a user equipment (UE) may receive, a physical channel, such as a narrowband physical downlink control channel (NPDCCH) or a narrowband physical downlink shared channel (NPDSCH). In an interference-limited scenario in a network, it may be desirable to perform additional processing to introduce interference randomization into the control channel to ensure that the UE can recover data of the control channel. Some types of UEs, such as legacy UEs, may not be capable of recovering the control channel when the additional processing is performed. In some aspects, the BS may identify a type of UE associated with a cell, and may transmit a physical channel processed using a processing scheme selected based at least in part on the type of UE associated with the cell.

公开(公告)号：US20210112500A1

公开(公告)日：2021-04-15

申请号：US17066666

申请日：2020-10-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/10 ,  H04W52/32 ,  H04W72/12 ,  H04L5/00 ,  H04W52/24

Abstract: Methods, systems, and devices for wireless communications are described. In one example, a user equipment (UE) may be configured to receive a control message scheduling a multicast transmission, and the UE may identify an open loop power control parameter for transmitting acknowledgment feedback responsive to the multicast transmission. The identification of the open loop power control parameter may be based on the transmission being multicast to a plurality of UEs, and in some cases a UE may identify an open loop power control parameter that is different than an open loop power control parameter associated with feedback responsive to unicast transmissions. In various examples, open loop power control parameters may correspond to respective feedback resources (e.g., according to a configuration for a set of open loop power control parameters), or to respective physical resource indicators (e.g., as signaled in downlink control information).

公开(公告)号：US20210105154A1

公开(公告)日：2021-04-08

申请号：US17125772

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Wanshi Chen ,  Peter Gaal

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. These wireless communications may include channel estimation procedures between communicating devices such as a base station and user equipment (UE). For example, the UE may receive, from the base station, a resource grant triggering a given reference signal configuration. Based at least in part on the type of reference signal configuration, the UE (e.g., and the base station) may determine a timing offset relative to the resource grant. The UE may transmit (and the base station may receive) the reference signal based at least in part on the timing offset. In some cases, the reference signal may be transmitted in a transmission opportunity of a set of transmission opportunities, where the set of transmission opportunities is determined based at least in part on the reference signal configuration.

公开(公告)号：US10959175B2

公开(公告)日：2021-03-23

申请号：US16224679

申请日：2018-12-18

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino

IPC: H04W52/02 ,  H04W4/70 ,  H04W68/02 ,  H04W52/26 ,  H04W24/10 ,  H04W52/24 ,  H04W52/14 ,  H04W4/00 ,  H04W52/32

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment (UE), may receive a wakeup signal (WUS) from a network node, such as a base station, before listening for a paging message. The UE may assume a maximum duration (Wmax) for the WUS based on a dependency on variables associated with the base station and WUS. In some cases, the UE may determine not to monitor a WUS for the Wmax and may engage in an early termination based on the determination. That is, the UE may monitor the WUS for a time shorter than Wmax. The UE may assume the shorter time has a dependency on variables associated with the base station and WUS. The base station may indicate this dependency to the UE either implicitly or explicitly.

公开(公告)号：US20210058912A1

公开(公告)日：2021-02-25

申请号：US17076613

申请日：2020-10-21

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Wanshi Chen ,  Seyed Ali Akbar Fakoorian ,  Peter Gaal ,  Shimman Arvind Patel ,  Madhavan Srinivasan Vajapeyam ,  Renqiu Wang ,  Jing Lei ,  Hao Xu

IPC: H04W72/04 ,  H04W72/00 ,  H04L5/00 ,  H04B7/0456

Abstract: Various techniques for narrowband communications in a wireless communications network are provided. Narrowband communications may be transmitted using a single resource block (RB) of a number of RBs used for wideband communications. In order to provide for efficient device discovery and synchronization using narrowband communications, a synchronization signal, such as a primary synchronization signal (PSS) or secondary synchronization signal (SSS), may be transmitted within the single resource block. The synchronization signal may be transmitted, for example, using multiple orthogonal frequency division multiplexing (OFDM) symbols within the single RB. A common reference signal (CRS) may also be present in the single resource block, which may puncture the synchronization signal, in some examples. In other examples, the synchronization signal may be mapped to non-CRS symbols of the single resource block.

公开(公告)号：US10932149B2

公开(公告)日：2021-02-23

申请号：US16371687

申请日：2019-04-01

Applicant: QUALCOMM Incorporated

Inventor： Raghavendra Shyam Ananda ,  Srikanth Menon ,  Alberto Rico Alvarino ,  Le Liu ,  Tae Min Kim

IPC: H04W24/08 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a configuration for identifying narrowband reference signal (NRS) tones that are to be received in association with a scheduled paging occasion, wherein the NRS tones are configured to be received via a non-anchor carrier regardless of whether a page is to be received in connection with the scheduled paging occasion; and receive the NRS tones via the non-anchor carrier based at least in part on the configuration. Numerous other aspects are provided.

公开(公告)号：US10931500B2

公开(公告)日：2021-02-23

申请号：US16234375

申请日：2018-12-27

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Le Liu

IPC: H04L27/26 ,  H04J11/00 ,  H04W56/00 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first synchronization signal for synchronizing with a cell, the first synchronization signal transmitted at a first periodicity by a base station serving the cell. The UE may then receive, subsequent to the synchronizing, a second synchronization signal for resynchronizing with the cell. In some cases, the second synchronization signal may be transmitted by the base station according to a second periodicity that is different from the first periodicity. In some cases, the second synchronization signal may include a plurality of repetitions of a first sequence that is based at least in part on a cell identifier of the cell. The UE may communicate over the cell with the base station based at least in part on the resynchronizing.

公开(公告)号：US20210051703A1

公开(公告)日：2021-02-18

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

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.

公开(公告)号：US20210051595A1

公开(公告)日：2021-02-18

申请号：US16928997

申请日：2020-07-14

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Marco Papaleo ,  Le Liu ,  Umesh Phuyal ,  Stefano Faccin ,  Timo Ville Vintola ,  Gene Fong ,  Valentin Alexandru Gheorghiu

IPC: H04W52/14 ,  H04W52/28 ,  H04W52/42

Abstract: Methods, systems, and devices for wireless communications are described in which a base station may signal one or more emission limits for one or more different frequency bands, and two or more values for one of the emission limits may be provided. A first subset of user equipments (UEs) may be capable of aerial operations (e.g., unmanned aerial vehicles (UAVs) or drones) and may use a first value of the first emission limit and the second subset of UEs may not capable of aerial operations and may use a second value of the first emission limit. A UE status such as altitude or position, or transmission directivity may also be used to determine if the UE is to apply the first value or the second value for an emission limit of a frequency band.

公开(公告)号：US20210050975A1

公开(公告)日：2021-02-18

申请号：US16992846

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Ahmed Zaki ,  Ayan Sengupta ,  Le Liu ,  Umesh Phuyal ,  Prasad Reddy Kadiri ,  Vijayvaradharaj Tirucherai Muralidharan ,  Ravinder Kumar ,  Murali Menon

IPC: H04L5/00 ,  H04W8/22 ,  H04W72/04 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described to enable a base station to configure additional reference signals, which may be referred to as configured reference signals, to include in a transmission to a user equipment (UE). The UE may transmit a report to the base station, indicating a UE capability for supporting configured reference signals, and the base station may configure a pattern for the configured reference signals. The base station may transmit an indication of the pattern to the UE, where the indication may include one or more characteristics associated with the configured reference signals. The base station may transmit the configured reference signals to the UE according to the pattern, along with one or more baseline reference signals, within an associated transmission. The UE may use the configured reference signals and the baseline reference signals to receive a transmission from the base station.