公开(公告)号：US20220264346A1

公开(公告)日：2022-08-18

申请号：US17177468

申请日：2021-02-17

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Tao Luo ,  Junyi Li ,  Aleksandar Damnjanovic ,  Ozcan Ozturk

IPC: H04W24/10 ,  H04W72/04 ,  H04W72/06 ,  H04W72/10 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described that enable a user equipment (UE) in a distributed system to transmit measurement reports for layer 1 (L1) or layer 2 (L2) mobility on a per distributed unit (DU) basis such that each measurement report for L1/L2 mobility contains only measurements of cells that are supported by the same DU. The UE may generate and transmit a DU-specific measurement report to the DU (e.g., via L1/L2 signaling) that includes measurements of cells controlled by the DU. The UE may support various reporting configurations for measurement reporting including per cell, per group of activated cells, or per group of deactivated cells, in each case reporting to the corresponding DU. The UE may also perform joint reporting that includes the measurements of both activated and deactivated cell sets transmitted to the corresponding

公开(公告)号：US11388604B2

公开(公告)日：2022-07-12

申请号：US16783372

申请日：2020-02-06

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Yongbin Wei

IPC: H04W4/00 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08

Abstract: A method, apparatus, and computer-readable medium that enable and disable autonomous downlink transmission (ADT) capability at a user equipment (UE) or a gNB are disclosed. The ADT capability is enabled when a triggering event occurs. The ADT capability is realized in part via initiating a listen before talk (LBT) procedure of a first LBT type to obtain an uplink (UL) transmission opportunity (TxOP) after determining that the UE does not have any UL data to transmit, transmitting uplink control information (UCI) with a limited amount of data to request for a resource grant of the TxOP for pending DL data; and receiving the pending DL data, wherein resources for receiving the pending DL data is dynamically configured via the UCI or semi-statically configured through a radio resource control (RRC) protocol message.

公开(公告)号：US11356882B2

公开(公告)日：2022-06-07

申请号：US16925002

申请日：2020-07-09

Applicant: QUALCOMM Incorporated

Inventor： Linhai He ,  Aleksandar Damnjanovic ,  Gavin Bernard Horn ,  Aziz Gholmieh ,  Yue Yang ,  Tao Luo ,  Sumeeth Nagaraja

IPC: H04W24/10 ,  H04W72/12 ,  H04W84/04

Abstract: Various techniques are proposed to enhance or expand the capabilities or usage of buffer status request (BSR) and scheduling request (SR) in new radio (NR) applications. In an implementation, techniques are proposed to extend the SR in long term evolution (LTE) baseline with additional information to help a base station (e.g., gNB) schedule faster and more efficiently. Moreover, a new BSR triggering condition is proposed to report new data based on particular events instead of being time-based. Modifications being proposed to both BSR and SR can be customized for different numerologies/transmission time intervals (TTIs). Modifications being proposed to SR can also be used to indicate a user equipment (UE) new beam selection after recovering from a beam failure.

公开(公告)号：US11319107B2

公开(公告)日：2022-05-03

申请号：US15398515

申请日：2017-01-04

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Peter Gaal ,  Wanshi Chen ,  Juan Montojo ,  Aleksandar Damnjanovic

IPC: H04W56/00 ,  H04W74/00 ,  H04H20/08 ,  B65D5/38 ,  H04J11/00 ,  H04W16/32 ,  H04W88/02 ,  B65D1/34 ,  B65D81/02

Abstract: Aspects of the present disclosure relate to wireless communications and, more particularly, to synchronization for standalone long term evolution (LTE) broadcast. In one aspect, a method is provided which may be performed by a wireless device such as a user equipment (UE). The method generally monitoring, within anchor subframes occurring at a first periodicity, for synchronization signals of a first type, obtaining an indication of one or more unicast subframes scheduled to occur between anchor subframes, and obtaining an indication of one or more broadcast subframes scheduled to occur between anchor subframes.

公开(公告)号：US20220132408A1

公开(公告)日：2022-04-28

申请号：US17647698

申请日：2022-01-11

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Andrei Dragos Radulescu ,  Tamer Kadous ,  Jing Sun ,  Xiaoxia Zhang ,  Taesang Yoo

IPC: H04W48/16 ,  H04W74/04 ,  H04W72/04 ,  H04W28/26

Abstract: A discovery measurement timing configuration (DMTC) window reservation signal is disclosed for new radio (NR) shared spectrum (NR-SS) networks. The DMTC window is defined providing a reserved location for transmission of essential control signaling and potentially high priority traffic that may be transmitted in a prioritized manner. Access within the DMTC window may be provided with a clear channel assessment (CCA) exempt transmission (CET) option or a non-CET option. When the CET option is used, the reservation duration and period may be conveyed through the channel reservation signal. User equipments (UEs) that detect the reservation signal may re-transmit with added offset to inform neighboring base station that may not be within range of the serving base station. Base station that receive either the transmitted or re-transmitted reservation signal will refrain from communications that may interfere with the reception at the UEs.

公开(公告)号：US11265748B2

公开(公告)日：2022-03-01

申请号：US16576447

申请日：2019-09-19

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Jing Sun ,  Yongbin Wei

IPC: H04W24/10 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

Abstract: Uplink clear channel assessment (CCA) status is disclosed as a new uplink control message for new radio (NR) unlicensed (NR-U) operations. When an opportunity for potential uplink transmissions arises for a user equipment (UE), the UE will perform a CCA procedure on available uplink resources. The UE reports the results of the CCA procedure to a serving base station via an uplink control message, such as an uplink control information (UCI), physical uplink control channel (PUCCH), or the like. The serving base station may then use the CCA results in scheduling uplink transmissions and reserving uplink resources.

公开(公告)号：US20220061088A1

公开(公告)日：2022-02-24

申请号：US17389554

申请日：2021-07-30

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Damnjanovic ,  Yisheng Xue ,  Maarten Menzo Wentink ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W74/08

Abstract: Wireless communications systems and methods related to channel access contention management in a shared radio frequency band are provided. A first wireless communication device performs, during a first time period, a first clear channel assessment (CCA) in a shared radio frequency band based on a first energy detection threshold, wherein performing the first CCA comprises obtaining at least one signal energy measurement. The first wireless communication device then performs, during a second time period subsequent to the first time period, a second CCA in the shared radio frequency band based on a second energy detection threshold, the second energy detection threshold being based on the at least one signal energy measurement. The wireless communication device then transmits, to a second wireless communication device in the shared radio frequency band based on the second CCA, a communication signal.

公开(公告)号：US20210400730A1

公开(公告)日：2021-12-23

申请号：US17325816

申请日：2021-05-20

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Maarten Menzo Wentink ,  Yisheng Xue ,  Marco Papaleo

IPC: H04W74/08 ,  H04W74/00

Abstract: Adaptive energy detection (ED) threshold medium access is discussed based on deployment and traffic type. The network nodes sharing a shared communication network are configured with multiple discrete ED thresholds or a range of ED values. As a transmitting node prepares to attempt access to the shared communication spectrum, it identifies an access trigger condition within the network. Such a condition may include traffic type, deployment, or access conditions. In response to detecting an access trigger condition, the transmitting node may select an ED threshold associated with the access trigger condition. Alternatively, upon detection of the access trigger condition, the transmitting node may implement a random ED threshold from the candidate range of ED threshold values.

公开(公告)号：US20210385824A1

公开(公告)日：2021-12-09

申请号：US17406683

申请日：2021-08-19

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan ,  Yisheng Xue ,  Xiaoxia Zhang ,  Tamer Kadous

IPC: H04W72/12 ,  H04W52/28 ,  H04W72/04 ,  H04W72/10 ,  H04W74/08

Abstract: A method of wireless communication may include determining a communication operation between a base station and one or more served UEs. The method may further include monitoring for radio frequency (RF) energy on a communication channel at a beginning of a listen before talk (LBT) window of a current frame in a shared spectrum shared between at least one or more opportunistic general authorized users. The method may further include transmitting an LBT trigger signal in response to detection of no RF energy above a minimum energy threshold at the beginning of the LBT window. The method may further include receiving an LBT trigger response signal from the one or more served UEs. The method may also include communicating, by the base station, with the one or more UEs during a channel occupancy time (COT) of the current frame after the LBT window.

公开(公告)号：US11191106B2

公开(公告)日：2021-11-30

申请号：US16553894

申请日：2019-08-28

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04W74/00 ,  H04W74/08

Abstract: Wireless devices may exchange data related to multiple available random access procedures for network access. A random access procedure of the available random access procedures may be selected, and a random access message transmitted based on the selected random access procedure. Available random access procedures may include procedures that provide for a different number of random access messages or that are for use in communications having different transmission time intervals (TTIs). The available random access procedures may include a contention-based random access procedure, in which an initial random access message may include a payload. In some examples, a number of random access resources may be provided within different frequency resources available to provide efficient usage of a channel bandwidth.