公开(公告)号：US20210250998A1

公开(公告)日：2021-08-12

申请号：US17125021

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Xiaoxia ZHANG ,  Vinay CHANDE ,  Arumugam CHENDAMARAI KANNAN ,  Srinivas YERRAMALLI ,  Tao LUO ,  Juan MONTOJO ,  Aleksandar DAMNJANOVIC

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

Abstract: Aspects are provided that allow a base station to provide a user equipment (UE) multiple timing opportunities to transmit an acknowledgment to a pre-grant (APG) after receiving a pre-grant for a downlink transmission. The base station transmits to the UE a pre-grant for a downlink transmission from the base station, the pre-grant triggering a plurality of timing opportunities for the UE to send an APG to the base station. The UE performs, after receiving the pre-grant, a clear channel assessment (CCA) during at least one timing opportunity of the plurality of timing opportunities. The UE transmits one or more APGs to the base station when the CCA is successful, and the UE receives the downlink transmission from the base station in response to the one or more APGs. The UE transmits the one or more APGs to the base station until the downlink transmission is received from the base station.

公开(公告)号：US20210250982A1

公开(公告)日：2021-08-12

申请号：US17125059

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Vinay CHANDE ,  Xiaoxia ZHANG ,  Arumugam CHENDAMARAI KANNAN ,  Srinivas YERRAMALLI ,  Tao LUO ,  Juan MONTOJO ,  Aleksandar DAMNJANOVIC

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

Abstract: Aspects are provided which improve LBT by associating contention windows with transmission burst lengths and by allowing contention windows and maximum burst lengths to be adjusted based on interference activity. For downlink, a UE receives a PG for a downlink transmission from a base station indicating a CCA length based on a contention window size associated at least with a burst length for the downlink transmission. The UE performs, after receiving the pre-grant, a CCA based on the CCA length, transmits an APG to the base station when the CCA is successful, and receives the downlink transmission in response to the APG. For uplink, the base station performs a CCA based on a contention window associated at least with a burst length for an uplink transmission, transmits an uplink grant to the UE when the CCA is successful, and receives the uplink transmission in response to the uplink grant.

公开(公告)号：US20210112420A1

公开(公告)日：2021-04-15

申请号：US17125182

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan VAJAPEYAM ,  Jelena DAMNJANOVIC ,  Aleksandar DAMNJANOVIC ,  Tao LUO ,  Jing SUN ,  Taesang YOO ,  Yongbin WEI

IPC: H04W16/14 ,  H04L1/00 ,  H04L1/18 ,  H04W76/28 ,  H04W74/00 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communication are described. Discontinuous reception (DRX) operation may be configured differently on enhanced component carriers (eCCs) than on other component carriers, including a primary cell (PCell). In some cases, a user equipment (UE) may be configured with several different eCC DRX modes. An eCC DRX configuration may, for example, be coordinated with downlink (DL) transmission time interval (TTI) scheduling so each DRX ON duration may correspond to a DL burst duration of the corresponding eCC. The eCC DRX ON durations may also be scheduled according to hybrid automatic repeat request (HARQ) process scheduling. In some examples, eCC DRX ON durations may be based on listen-before-talk (LBT) procedures. In some cases, eCC DRX ON durations may be configured to contain an uplink (UL) burst to enable channel state information (CSI) reporting. The eCC DRX may also be configured to minimize interruption of the PCell.

公开(公告)号：US20210100027A1

公开(公告)日：2021-04-01

申请号：US17017324

申请日：2020-09-10

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN ,  Piyush GUPTA ,  Hua WANG

IPC: H04W74/00 ,  H04W74/08 ,  H04W74/02 ,  H04W8/00 ,  H04W40/24 ,  H04W76/14 ,  H04W52/36 ,  H04W76/27 ,  H04W80/02 ,  H04W72/04 ,  H04W56/00

Abstract: Some aspects described herein relate to receiving a configuration defining resources for transmitting a first message in a two-step random access procedure, wherein the first message includes a random access preamble and a payload, generating a beacon signal for transmitting as the first message, where the beacon signal includes one or more parameters to facilitate discovery by other UEs for pairing in sidelink communications, and transmitting, based on the configuration, the beacon signal as the first message over the resources.

公开(公告)号：US20210084697A1

公开(公告)日：2021-03-18

申请号：US16942686

申请日：2020-07-29

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Sharad SAMBHWANI

IPC: H04W76/11 ,  H04W80/02 ,  H04W72/04 ,  H04W16/14 ,  H04W88/08

Abstract: A UE may establish a communications link with a base station. The UE may determine at least two radio network temporary identifiers (RNTIs) associated with the communications link, wherein each of the at least two RNTIs is associated with a respective relay device of a plurality of relay devices. The UE may receive, from a first relay device of the plurality of relay devices, at least one first stream associated with a first RNTI of the at least two RNTIs, wherein the at least one first stream carries data or control information associated with the communications link. The UE may receive, from a second relay device of the plurality of relay devices, at least one second stream associated with a second RNTI of the at least two RNTIs, wherein the at least one second stream carries data or control information associated with the communications link.

公开(公告)号：US20210051717A1

公开(公告)日：2021-02-18

申请号：US16990724

申请日：2020-08-11

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN ,  Yongbin WEI

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for reuse one channel access for new radio communications in unlicensed spectrum. A method that may be performed by a first base station (BS) includes occupying a bandwidth, based on a category 4 (CAT4) listen before talk (LBT) procedure on the bandwidth, wherein the CAT4 LBT procedure is based on a first contention window (CW); arranging a category 2 (CAT2) LBT occasion for the bandwidth during a channel occupancy time (COT) for the bandwidth; and receiving an indication that at least a second BS has occupied the bandwidth during the CAT2 LBT occasion.

公开(公告)号：US20210045096A1

公开(公告)日：2021-02-11

申请号：US16941294

申请日：2020-07-28

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN ,  Qingjiang TIAN ,  Yongbin WEI

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

Abstract: Certain aspects of the present disclosure provide techniques for new radio (NR) communications in narrowband regions of unlicensed spectrum. A method that may be performed by a user equipment (UE) includes determining, using an energy detector (ED), that received energy in a first bandwidth (BW) is lower than a threshold; and transmitting, in response to determining that received energy in the first BW is lower than the threshold, a first uplink (UL) transmission to a base station (BS) in a second BW smaller than the first BW and contained within the first BW.

公开(公告)号：US20200344631A1

公开(公告)日：2020-10-29

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

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：US20200221391A1

公开(公告)日：2020-07-09

申请号：US16734210

申请日：2020-01-03

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Xiaoxia ZHANG ,  Jing SUN ,  Seyed Ali Akbar FAKOORIAN

IPC: H04W52/28 ,  H04W52/22 ,  H04W76/27 ,  H04W52/08 ,  H04W52/36 ,  H04W52/26

Abstract: Apparatus, methods, and computer-readable media for applying different power control commands for particular transmissions on a same channel are disclosed. An example method of wireless communication at a User Equipment includes determining a first transmission power for a first transmission using first transmission power control parameters, and transmitting the first transmission using the first transmission power. The example method also includes determining a second transmission power for a re-transmission using second transmission power control parameters. The example method further includes transmitting the re-transmission using the second transmission power.

公开(公告)号：US20200045623A1

公开(公告)日：2020-02-06

申请号：US16599050

申请日：2019-10-10

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Durga Prasad MALLADI ,  Siddhartha MALLIK ,  Naga BHUSHAN ,  Yongbin WEI ,  Gavin Bernard HORN

IPC: H04W48/00 ,  H04W74/00 ,  H04W72/04 ,  H04W24/02 ,  H04W8/22

Abstract: A method of wireless communication includes configuring a small cell with activation parameters. The activation parameters include a new carrier type having a reduced periodicity. The method also includes configuring a UE with time restricted measurements. The time restricted measurements correspond to the new carrier type and the reduced periodicity. The method further includes receiving small cell signal measurements from the UE and initiating an activation sequence in response to the small cell signal measurements.