公开(公告)号：US11553518B2

公开(公告)日：2023-01-10

申请号：US17090812

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Jing Sun ,  Xiaoxia Zhang ,  Andrei Dragos Radulescu

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/14 ,  H04W72/10 ,  H04W80/02 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, from a network entity, a configured grant associated with a listen-before-talk (LBT) procedure; determining a transmission priority on the configured grant associated with the LBT procedure; and determining a logical channel based on the transmission priority on the configured grant, wherein determining the logical channel further comprises determining that a scheduled transmission includes one or more signaling data transmissions on the configured grant, the one or more signaling data transmissions corresponding to at least one of a signaling radio bearer 0 (SRB0), SRB1, and SRB3; adjusting a priority level for the one or more signaling data transmissions to a highest priority level corresponding to a higher channel access priority class; and transmitting, to the network entity, on the configured logical channel of the configured grant after successfully performing the LBT procedure.

公开(公告)号：US11516770B2

公开(公告)日：2022-11-29

申请号：US16796750

申请日：2020-02-20

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Jing Sun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Peter Gaal ,  Aleksandar Damnjanovic

IPC: H04W68/02 ,  H04W72/04 ,  H04L5/00 ,  H04W68/00

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication. A user equipment (UE) may acquire a triggering synchronization signal block (SSB), which enables the UE to monitor for a floating Type-2 physical downlink control channel (PDCCH) and to determine a subset of paging occasions (POs) to monitor. Or, the UE may monitor for a fixed Type-2 PDCCH, where the UE does not require a triggering signal to monitors POs. In another aspect, the UE may monitor for a paging transmission during a monitoring period. The UE may determine the monitoring period based on received signaling. The UE may receive the signaling, during the monitoring period, indicating that the monitoring period is to be ended before a scheduled end of the monitoring period. In this way, the UE may support a continuity requirement associated with downlink reference signaling (DRS) and may support reception of paging in a shared channel.

公开(公告)号：US11463985B2

公开(公告)日：2022-10-04

申请号：US16857051

申请日：2020-04-23

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Xiaoxia Zhang ,  Andrei Dragos Radulescu ,  Jing Sun

IPC: H04W68/00 ,  H04W24/08 ,  H04W72/04 ,  H04W76/11 ,  H04W74/08 ,  H04W16/14 ,  H04W8/20

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for determining a time to stop monitoring a wireless channel for paging information. In some examples, a user equipment (UE) may identify a plurality of paging occasions associated with a wireless channel (e.g., of an unlicensed radio frequency spectrum band) and monitor the wireless channel for paging information from a base station during a first paging occasion of the plurality of paging occasions. The UE may determine a channel occupancy status of the base station with respect to the wireless channel and may determine a time to stop monitoring the wireless channel for paging information. The UE may ignore a remainder of the plurality of paging occasions based on the determined time to stop monitoring the wireless channel.

公开(公告)号：US20210211886A1

公开(公告)日：2021-07-08

申请号：US17143661

申请日：2021-01-07

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Andrei Dragos Radulescu ,  Xiaoxia Zhang

IPC: H04W16/14 ,  H04L5/00 ,  H04W24/10 ,  H04B17/336 ,  H04B17/318 ,  H04W76/11

Abstract: Methods, systems, and devices for wireless communications are described in which wireless nodes may use licensed shared radio frequency spectrum band for communications and one or more neighboring networks may use a same licensed shared radio frequency spectrum band. A second network of the one or more neighboring networks may have priority of use of the licensed shared radio frequency spectrum band within a particular geographic area. Disclosed techniques provide that nodes of each network may indicate an identification of the network, a network priority, or both, in over-the-air signaling. Wireless nodes may determine if another neighboring network is present based on the over-the-air signaling, may determine whether the other network has a higher priority, and may adjust one or more transmissions in the event that a higher priority network is identified, such as through reducing transmission power.

公开(公告)号：US11019504B2

公开(公告)日：2021-05-25

申请号：US16372917

申请日：2019-04-02

Applicant: QUALCOMM incorporated

Inventor： Xiaoxia Zhang ,  Zhifei Fan ,  Jing Sun ,  Andrei Dragos Radulescu ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04W16/26 ,  H04W74/08

Abstract: Wireless communications systems and methods related to on-demand cell coverage extension for broadcast signals are provided. A first wireless communication device communicates, with a second wireless communication device, a first extended cell coverage request. The first wireless communication device communicates, with the second wireless communication device, a first broadcast communication signal in an extended cell coverage mode in response to the first extended cell coverage request. The first broadcast communication signal includes a system information block repeated in at least one of a time domain or a frequency domain.

公开(公告)号：US20210092627A1

公开(公告)日：2021-03-25

申请号：US17024607

申请日：2020-09-17

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Jing Sun ,  Kapil Bhattad ,  Xiaoxia Zhang

IPC: H04W24/10 ,  H04W72/12 ,  H04L5/00 ,  H04W56/00 ,  H04L1/00 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and base station may communicate in on a wireless channel of an unlicensed radio frequency spectrum band. The base station may transmit synchronization signal blocks (SSBs) in a discovery reference signal (DRS) slot. The base station may multiplex a channel state information (CSI) reference signal (CSI-RS). The base station may multiplex an aperiodic CSI-RS or a periodic CSI-RS with the SSBs in the DRS slot. For an aperiodic CSI-RS, the base station may separately trigger the CSI-RS measurement and CSI-RS reporting. For periodic CSI-RS, the base station may transmit an indication of whether the periodic CSI-RS is present.

公开(公告)号：US10959267B2

公开(公告)日：2021-03-23

申请号：US16046425

申请日：2018-07-26

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Damnjanovic ,  Andrei Dragos Radulescu ,  Tamer Kadous ,  Srinivas Yerramalli

IPC: H04W74/08 ,  H04W74/00 ,  H04W48/16 ,  H04W56/00 ,  H04W72/12 ,  H04W16/14 ,  H04L5/00 ,  H04W48/12 ,  H04W16/28 ,  H04W88/08

Abstract: Random access channel (RACH) configurations for new radio (NR) shared spectrum (NR-SS) networks are disclosed. A base station may perform a listen before talk (LBT) procedure on a shared communication channel at a beginning of a discovery measurement timing configuration (DMTC) window. In response to a successful LBT, the base station may transmit synchronization signals over a plurality of directional beams according to a predetermined sequence. The user equipment (UE) may determine the predetermined sequence through the detected synchronization signals. The base station may signal configuration of additional random access resources when the LBT procedure delays beyond dedicated random access resources. The base station may then monitor for UEs to transmit random access signals from each direction corresponding to directional beams within the additional random access resources according to the predetermined sequence.

公开(公告)号：US20200252959A1

公开(公告)日：2020-08-06

申请号：US16778170

申请日：2020-01-31

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Srinivas Yerramalli ,  Andrei Dragos Radulescu ,  Xiaoxia Zhang

IPC: H04W72/14 ,  H04L5/00 ,  H04W56/00 ,  H04W74/08

Abstract: Design of uplink transmissions and random access transmission is disclosed. A user equipment (UE) that has established a connection with a serving base station may receive an uplink grant that includes an identification of a starting position relative to the starting symbol associated with the uplink grant. The UE determines that the starting symbol associated with the uplink grant also aligns with a configured random access occasion. When the scheduled uplink symbol overlaps with the random access opportunity, the UE can transmit its uplink transmission from the starting position identified in the uplink grant, wherein the starting position is shifted from the starting symbol by a shift value equal to at least a timing advance associated with the serving base station.

公开(公告)号：US10720980B2

公开(公告)日：2020-07-21

申请号：US16027735

申请日：2018-07-05

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Andrei Dragos Radulescu

IPC: H04B7/06 ,  H04B7/0413 ,  H04W48/16 ,  H04W74/00 ,  H04W16/28 ,  H04W74/08

Abstract: Techniques are described herein for coordinating a random access channel (RACH) procedure with a beam discovery procedure. A timing and configuration of a RACH window may be coordinated with a beam discovery window. By coordinating the two windows, a user equipment (UE) may be configured to use information learned from the beam discovery procedure during the RACH procedure, thereby increasing the likelihood that the RACH procedure is successful. In some cases, the RACH procedure is triggered by the transmission of directional beam reference signals during the beam discovery window. In such cases, the UE determines the timing of the RACH window based at least in part on the receipt of the directional beam reference signals. In some cases, the RACH window is configured using a static configuration relative to the beam discovery window.

公开(公告)号：US10674389B2

公开(公告)日：2020-06-02

申请号：US15828002

申请日：2017-11-30

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Andrei Dragos Radulescu ,  Chirag Sureshbhai Patel ,  Tamer Adel Kadous ,  Ashok Mantravadi ,  Aamod Khandekar

IPC: H04W24/10 ,  H04W36/30 ,  H04B7/06 ,  H04L5/00 ,  H04W84/12 ,  H04L1/00 ,  H04W16/14 ,  H04W24/02

Abstract: Techniques for access terminal radio link monitoring on a shared communication medium are disclosed. In an aspect, an access terminal detects a missed reference signal event associated with a radio link established on the shared communication medium, wherein detecting the missed reference signal event comprises determining that the access terminal did not detect a reference signal for measuring a quality of the radio link transmitted during a reference signal configuration window, assigns an error metric to the missed reference signal event based on reference signal monitoring capabilities of the access terminal, and triggers a radio link failure based on the assigned error metric. In an aspect, the missed reference signal event may be a missed Discovery Reference Signaling (DRS) event, the error metric may be a Block Error Rate (BLER) weight, and the reference signal for measuring the quality of the radio link comprises a Cell-specific Reference Signal (CRS).