公开(公告)号：US20200274682A1

公开(公告)日：2020-08-27

申请号：US16793836

申请日：2020-02-18

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Huilin XU ,  Xiaoxia ZHANG

IPC: H04L5/00 ,  H04W16/14 ,  H04W72/12 ,  H04W74/08 ,  H04J11/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a configuration for a control resource set (CORESET) of a shared radio frequency spectrum carrier. The UE may identify a bitmap included in the configuration. Each bit in the bitmap may be associated with a respective control resource block group. The UE may identify, based at least in part on a value for each bit in the bitmap, one or more control resource block groups that are included in the CORESET. The UE may monitor for downlink communications in the one or more control resource block groups. Numerous other aspects are provided.

公开(公告)号：US20200274675A1

公开(公告)日：2020-08-27

申请号：US16872850

申请日：2020-05-12

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok ANG ,  Wanshi CHEN ,  Heechoon LEE ,  Jing SUN ,  Joseph Binamira SORIAGA ,  Yang YANG

IPC: H04L5/00 ,  H04L1/18 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a first hybrid automatic repeat request acknowledgement (HARQ-ACK) payload for a first component carrier (CC) set based at least in part on a first downlink assignment index (DAI). The UE may determine a second HARQ-ACK payload for a second CC set based at least in part on a second DAI. The UE may transmit the first HARQ-ACK payload for the first CC set and the second HARQ-ACK payload for the second CC set. Numerous other aspects are provided.

公开(公告)号：US20200252974A1

公开(公告)日：2020-08-06

申请号：US16775056

申请日：2020-01-28

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Xiaoxia ZHANG ,  Jing SUN ,  Tao LUO ,  Muhammad Nazmul ISLAM

IPC: H04W74/08 ,  H04W76/27 ,  H04W72/04 ,  H04W52/36

Abstract: Certain aspects of the disclosure provide techniques for random access channel (RACH) power control, including for message (MSGA) transmission by a user equipment (UE) for two-step RACH procedure. Certain aspects provide a method for wireless communication generally including determining a transmit power for transmitting a first message to a base station (BS) as part of a two-step RACH procedure, the first message comprising a first part and a second part. Determining the transmit power comprises determining a first transmit power for transmitting the first part based on a first function having parameters including a power ramping counter and a power ramping step. Determining the transmit power further comprises determining a second transmit power for transmitting the second part based on a second function having parameters including the power ramping counter and the power ramping step. The method further includes incrementing the power ramping counter based on transmitting the first message.

公开(公告)号：US20200252820A1

公开(公告)日：2020-08-06

申请号：US16776321

申请日：2020-01-29

Applicant: QUALCOMM Incorporated

Inventor： Ozcan OZTURK ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN

IPC: H04W24/10 ,  H04W16/14

Abstract: A configuration to enable a UE to obtain access to an unlicensed frequency channel of the unlicensed frequency spectrum in the event of channel access failures. The apparatus performs a radio link monitoring (RLM) for a first unlicensed frequency channel of an unlicensed frequency spectrum for a transmission from a first base station. The apparatus determines that the first unlicensed frequency channel is unavailable for the transmission based on a comparison of one or more of a reference signal received power (RSRP), a reference signal received quality (RSRQ), a received signal strength indicator (RSSI), a signal to interference plus noise ratio (SINR), a signal to noise ratio (SNR), or a channel occupancy or interference metric to a corresponding threshold. The apparatus sends a report to the first base station indicating a failure of the transmission upon determining that the first unlicensed frequency channel is unavailable for the transmission.

公开(公告)号：US20200221309A1

公开(公告)日：2020-07-09

申请号：US16735504

申请日：2020-01-06

Applicant: QUALCOMM Incorporated

Inventor： Ozcan OZTURK ,  Aleksandar DAMNJANOVIC ,  Andrei Dragos RADULESCU ,  Xiaoxia ZHANG ,  Tao LUO ,  Jing SUN

IPC: H04W16/14 ,  H04W74/08 ,  H04W76/27 ,  H04W80/02 ,  H04L25/02 ,  H04L5/00 ,  H04W24/10 ,  H04B17/318 ,  H04B17/336

Abstract: A UE determines to send a transmission to a first base station on a first unlicensed frequency channel. The UE determines, for one or more attempts of a listen before talk (LBT) protocol, whether each attempt is a failed attempt or a successful attempt. The UE determines that the first unlicensed frequency channel is one of unavailable based on the LBT protocol failing due to a number of failed attempts exceeding for a first threshold number of failed attempts or a duration of failed attempts exceeding a first threshold duration, or available based on the LBT protocol being successful. The UE sends a report to the first base station indicating whether the first unlicensed frequency channel is unavailable or available through a unicast radio resource control (RRC) message or a medium access control (MAC) control element (CE).

公开(公告)号：US20200187239A1

公开(公告)日：2020-06-11

申请号：US16703604

申请日：2019-12-04

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Jing SUN ,  Tao LUO ,  Peter GAAL

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/14

Abstract: A method of scheduling uplink and downlink packet transmission in a mobile communication system is disclosed. The method of scheduling includes receiving (or transmitting if from a BS perspective) a first scheduling indication and receiving (or transmitting if from a BS perspective) a second scheduling indication, the first scheduling indication and the second scheduling indication comprise scheduling information for a UE.

公开(公告)号：US20200154471A1

公开(公告)日：2020-05-14

申请号：US16674763

申请日：2019-11-05

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Xiaoxia ZHANG ,  Srinivas YERRAMALLI ,  Ozcan OZTURK

IPC: H04W74/00 ,  H04W16/14 ,  H04W74/08 ,  H04W72/12

Abstract: Uplink signaling in unlicensed or shared spectrum may be subject to listen before talk procedures resulting in failed signaling transmissions. A user equipment (UE) may perform uplink signaling using a configuration based on whether a base station has entered a channel occupancy time (COT) shared with the UE. A UE may determine that the UE has an uplink transmission for a base station. A UE may determine whether the base station has entered a channel occupancy time that is shared with the UE. A UE may determine configured random access or scheduling request transmission resources based on the channel occupancy time, wherein a density of transmission opportunities is greater outside of the shared channel occupancy time than within the shared channel occupancy time. A UE may transmit a random access message or the scheduling request on selected configured resources.

公开(公告)号：US20200153543A1

公开(公告)日：2020-05-14

申请号：US16664361

申请日：2019-10-25

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Jing SUN

IPC: H04L1/00 ,  H04B7/06 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive demodulation reference signal (DMRS) information that indicates a first DMRS configuration for a first transmit receive point (TRP) and a second DMRS configuration for a second TRP; generate a first DMRS-based channel quality report, based at least in part on a first set of DMRS received from the first TRP according to the first DMRS configuration, and a second DMRS-based channel quality report based at least in part on a second set of DMRS received from the second TRP according to the second DMRS configuration; and transmit the first DMRS-based channel quality report and the second DMRS-based channel quality report. Numerous other aspects are provided.

公开(公告)号：US20200100277A1

公开(公告)日：2020-03-26

申请号：US16579333

申请日：2019-09-23

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Jing SUN ,  Farhad MESHKATI

IPC: H04W72/12 ,  H04W72/04

Abstract: Aspects of the present disclosure provide techniques for signaling PDCCH with relevant QCL relationships for CE for a UE to use to process a multi-TRP transmission sent using disjoint RBs.

公开(公告)号：US20200045744A1

公开(公告)日：2020-02-06

申请号：US16526682

申请日：2019-07-30

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Kapil BHATTAD ,  Aleksandar DAMNJANOVIC ,  Tamer KADOUS ,  Taesang YOO ,  Xiaoxia ZHANG

IPC: H04W74/08 ,  H04W72/12 ,  H04W88/12

Abstract: Aspects directed towards facilitating multi-node listen before talk (LBT) functionality via a centralized controller are disclosed. In one example, for each of a plurality of scheduled entities, a corresponding set of scheduling entities is identified, and each scheduling entity of the set of scheduling entities is instructed to perform at least one LBT evaluation. This example then further includes controlling whether any of the plurality of scheduled entities is served by a corresponding one or more scheduling entities of the set of scheduling entities based on the at least one LBT evaluation performed by each scheduling entity.