公开(公告)号：US20210051720A1

公开(公告)日：2021-02-18

申请号：US16990352

申请日：2020-08-11

Applicant: QUALCOMM INCORPORATED

Inventor： Ananta Narayanan Thyagarajan ,  Kapll Bhattad ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12 ,  H04W72/04 ,  H04L5/00

Abstract: Wireless communications systems and methods related to communicating a structure of a channel occupancy time (COT) are provided. A first wireless communication device communicates with a second wireless communication device, a first indicator indicating at least one of a subband configuration for a COT or a duration of the COT. The first wireless communication device communicates with the second wireless communication device during the COT, a first communication signal based on at least one of the subband configuration for the COT or the duration of the COT. The first wireless communication device communicates with the second wireless communication device during the COT, a second indicator indicating an update for at least one of the subband configuration for the COT or the duration of the COT. Additionally, the first wireless communication device communicates with the second wireless communication device during the COT, a second communication signal based on the update.

公开(公告)号：US20210045153A1

公开(公告)日：2021-02-11

申请号：US16912261

申请日：2020-06-25

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Ananta Narayanan Thyagarajan ,  Jing Sun ,  Kapil Bhattad

IPC: H04W74/08 ,  H04W16/14 ,  H04L5/00 ,  H04L1/16 ,  H04W24/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications in unlicensed spectrum are described. In some wireless communications systems, a user equipment may identify a service parameter configured for the user equipment for a shared radio frequency channel, such as a subcarrier spacing or beam direction for a directional beam for communications with a base station. The base station may acquire a channel occupancy time for the shared radio frequency channel. The user equipment may monitor for and receive a control message for the channel occupancy time from the base station. The control message may include an indication of service associated with the service parameter and a remaining duration of the channel occupancy time. Based on the indications, the user equipment may adapt one or more receive parameters (e.g., a monitoring periodicity, monitoring time occasions, and whether to skip monitoring) for communicating with the base station during the channel occupancy time.

公开(公告)号：US20200351758A1

公开(公告)日：2020-11-05

申请号：US16861197

申请日：2020-04-28

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Ananta Narayanan Thyagarajan ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W48/10 ,  H04W16/14 ,  H04W74/08

Abstract: Wireless communications systems and methods related to channel access for discovery reference signal (DRS) transmissions in a spectrum shared by multiple network operating entities are provided. A first wireless communication device identifies a plurality of allowable transmission starting locations within a DRS measurement time configuration (DMTC) window, where at least one of the plurality of allowable transmission starting locations is offset from boundaries of a plurality of transmission slots of the DMTC window. The plurality of allowable transmission starting locations is associated with an allowable number of category 2 (CAT2) listen-before-talks (LBTs) within the DMTC window and a duration of the DRS transmission. The first wireless communication device communicates, with a second wireless communication device, a DRS beginning at a first transmission starting location of the plurality of allowable transmission starting locations.

公开(公告)号：US20200314871A1

公开(公告)日：2020-10-01

申请号：US16814759

申请日：2020-03-10

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Kapil Bhattad ,  Xiaoxia Zhang ,  Tanumay Datta ,  Ananta Narayanan Thyagarajan

IPC: H04W72/12 ,  H04W24/10 ,  H04L5/00 ,  H04W74/08 ,  H04W72/04 ,  H04W76/27

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for group reference signal triggering for contention-based systems. The described techniques may enable a network node to trigger a group of one or more user equipments (UEs) to transmit a reference signal to the network node. The network node may transmit a group common control channel indicating timing information or configuration information corresponding to a set of resources for the transmission of the reference signal. The one or more UEs may transmit the reference signal according to the timing information or configuration information.

公开(公告)号：US20200252821A1

公开(公告)日：2020-08-06

申请号：US16777618

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

Inventor： Pravjyot Singh Deogun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Jing Sun ,  Kapil Bhattad ,  Ananta Narayanan Thyagarajan

IPC: H04W24/10 ,  H04W72/04 ,  H04W16/14

Abstract: Design of robust radio link monitoring framework for unlicensed spectrum is disclosed. The network may configured two different types of radio link monitoring (RLM) reference signal (RS) resources: default resources, which are transmitted throughout a connection, and additional resources, which may be transmitted only when there has been failure of transmission or reception of the default resources. Various criteria may be used by the network to trigger scheduling transmission of the additional RLM-RS. Moreover, different criteria may prompt a user equipment (UE) to begin monitoring the additional RLM-RS resources, including autonomous and network-initiated criteria.

公开(公告)号：US10701671B2

公开(公告)日：2020-06-30

申请号：US16143179

申请日：2018-09-26

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Ananta Narayanan Thyagarajan ,  Xiaoxia Zhang ,  Jing Sun ,  Taesang Yoo

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W72/12 ,  H04W88/02 ,  H04W88/10 ,  H04W92/10 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communications are described. One method may include determining symbol level scheduling for symbols allocated to a plurality of user equipments (UEs) within a transmission time interval (TTI); transmitting, in a control channel of the TTI, control information indicating the symbol level scheduling; and communicating, in accordance with the symbol level scheduling, the symbols within the TTI in a plurality of beamformed transmissions. Another method may include receiving, by a UE, control information in a control channel of a TTI; processing the control information to determine a subset of symbols of the TTI allocated to the UE, a symbol length or duration of the subset of the symbols allocated to the UE, and symbol level scheduling for the subset of the symbols within the TTI; and receiving the subset of the symbols based on the control information.