公开(公告)号：US11153830B2

公开(公告)日：2021-10-19

申请号：US16928997

申请日：2020-07-14

Applicant: QUALCOMM incorporated

Inventor： Alberto Rico Alvarino ,  Marco Papaleo ,  Le Liu ,  Umesh Phuyal ,  Stefano Faccin ,  Timo Ville Vintola ,  Gene Fong ,  Valentin Alexandru Gheorghiu

IPC: H04W52/14 ,  H04W52/42 ,  H04W52/28

Abstract: Methods, systems, and devices for wireless communications are described in which a base station may signal one or more emission limits for one or more different frequency bands, and two or more values for one of the emission limits may be provided. A first subset of user equipments (UEs) may be capable of aerial operations (e.g., unmanned aerial vehicles (UAVs) or drones) and may use a first value of the first emission limit and the second subset of UEs may not capable of aerial operations and may use a second value of the first emission limit. A UE status such as altitude or position, or transmission directivity may also be used to determine if the UE is to apply the first value or the second value for an emission limit of a frequency band.

公开(公告)号：US20210306125A1

公开(公告)日：2021-09-30

申请号：US17208349

申请日：2021-03-22

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Tao Luo ,  Peter Gaal ,  Le Liu ,  Wanshi Chen ,  Alberto Rico Alvarino ,  Juan Montojo

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

Abstract: Quasi-colocation (QCL) indication is discussed after downlink transmission. In the management of multiple transmission-reception point (TRP) downlink transmissions, a second indication of a QCL assumption for a particular downlink transmission may be transmitted to receiving user equipment (UEs) after transmission of the downlink transmission. Once a TRP passes a listen before talk (LBT) procedure in a first time interval, it may send a first downlink control information (DCI) with indication of a first QCL assumption for the transmission in the first time interval. The TRP then transmits the downlink transmission intended for part of the multi-TRP downlink transmission. Upon receiving an indication that another of the TRPs was unsuccessful in its part of the multi-TRP transmission, the TRP may transmit a second DCI in a subsequent time interval with adjustments to the QCL assumption for the UEs to use in processing the downlink transmission from the first time interval.

公开(公告)号：US11129188B2

公开(公告)日：2021-09-21

申请号：US16581004

申请日：2019-09-24

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Le Liu ,  Mungal Singh Dhanda ,  Umesh Phuyal

IPC: H04W72/14 ,  H04W72/12 ,  H04W80/08 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18

Abstract: A method for early termination of an ongoing uplink transmission based on implicit HARQ-ACK is disclosed. A wireless device may receive a first grant for a first uplink transmission and may begin repetitions of the first uplink transmission. The wireless device may receive a second grant for a second uplink transmission during the ongoing first uplink transmission. The wireless device may determine if the second grant is an implicit HARQ-ACK and may perform an early detection of the HARQ-ACK. The wireless device may terminate early the first uplink transmission based on the detection of the HARQ-ACK. Allowing the wireless device to terminate the first uplink transmission through an implicit HARQ-ACK frees up channel resources and saves power. The wireless device may also start the second uplink transmission earlier than a schedule time based on the early detection of the HARQ-ACK, eliminating the waste of unused uplink resources and saving power.

公开(公告)号：US20210282115A1

公开(公告)日：2021-09-09

申请号：US17188128

申请日：2021-03-01

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Peter Gaal ,  Tao Luo ,  Kazuki Takeda ,  Juan Montojo ,  Le Liu ,  Xiaoxia Zhang ,  Wanshi Chen ,  Umesh Phuyal ,  Prasad Reddy Kadiri

IPC: H04W72/00 ,  H04W72/04 ,  H04W72/02 ,  H04L1/18 ,  H04W80/02

Abstract: Wireless communications are described. A user equipment (UE) may receive a configuration message identifying a set of resources available for a plurality of UEs for transmission of feedback indications of multi-cast (or broadcast) transmission to the plurality of UEs, the set of resources comprising a plurality of subsets of resources, each subset of resources being associated with a corresponding channel metric for each UE of the plurality of UEs receiving the multi-cast transmission. The UE may determine that a feedback indication is to be provided in response to the multi-cast transmission. The UE may select, based at least in part on a channel metric of the UE, a first subset of the plurality of subsets of resources to use for transmitting a feedback message including the feedback indication. The UE may transmit the feedback message for the multi-cast transmission using resources within the selected first subset of resources.

公开(公告)号：US20210266957A1

公开(公告)日：2021-08-26

申请号：US17179019

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Umesh Phuyal ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Prasad Reddy Kadiri ,  Le Liu

IPC: H04W74/00 ,  H04W74/08 ,  H04L1/18 ,  H04W80/02 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may transmit a random access message (e.g., a message 3) associated with a random access procedure. A hybrid automatic repeat request (HARQ) feedback may be disabled for the random access procedure. The UE may initiate a contention resolution window associated with the random access procedure for a first downlink data channel transmission of a set of downlink data channel transmissions associated with the random access procedure. The UE may receive, during the contention resolution window, the first downlink data channel transmission carrying a contention resolution medium access control-control element (MAC-CE). The UE may transmit acknowledgment information for the first downlink data channel transmission carrying the contention resolution MAC-CE based on an indication to enable the HARQ feedback.

公开(公告)号：US20210250964A1

公开(公告)日：2021-08-12

申请号：US17239301

申请日：2021-04-23

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Le Liu

IPC: H04W72/12 ,  H04L1/00 ,  H04W76/27 ,  H04L27/34 ,  H04W8/24

Abstract: Methods, systems, and devices for wireless communications are described for identifying a modulation and coding scheme (MCS) independently of a channel quality indicator (CQI) table that is configured at a user equipment (UE). A rate matching parameter may be determined based on one or more of the MCS or CQI table, which may be used for dimensioning a soft buffer that is used to store received transmissions for decoding. The MCS field may be a six-bit field and may indicate an MCS that exceeds a highest MCS associated with the CQI table. The base station may activate a semi-persistent scheduling (SPS) configuration at the UE through an activation command, and the UE may verify that SPS is activated based on information in a number of different fields of control information which may include the MCS field.

公开(公告)号：US20210250904A1

公开(公告)日：2021-08-12

申请号：US17170324

申请日：2021-02-08

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Kazuki Takeda ,  Amer Catovic ,  Prasad Reddy Kadiri ,  Umesh Phuyal

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

Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure an outer coded block which a user equipment (UE) may implement to recover an unsuccessfully decoded transmission. The base station may send, to the UE, downlink control information (DCI) indicating an outer coding scheme for the group of data blocks (e.g., a first data block and a second data block). The UE may monitor for the data blocks and the outer coded block. The UE may decode the data blocks based on the outer coded block and the outer coding scheme. In some examples, the outer code block may be made up of a combination of the first and second data blocks. The UE may use the combination of the outer coded block and one of the data blocks to decode an unsuccessfully decode data block.

公开(公告)号：US20210152307A1

公开(公告)日：2021-05-20

申请号：US17097877

申请日：2020-11-13

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Jing Sun ,  Le Liu ,  Miguel Griot ,  Mostafa Khoshnevisan ,  Peter Gaal ,  Prasad Reddy Kadiri ,  Xiaoxia Zhang ,  Tao Luo ,  Umesh Phuyal ,  Wanshi Chen

IPC: H04L5/00 ,  H04W24/08 ,  H04W4/06

Abstract: Methods, systems, and devices for wireless communications are described. A set of reference signal resources that are configured for sounding reference signal transmissions may be shared among user equipments (UEs) that are enabled to receive multicast communications. Each of the shared set of reference signal resources may be associated with set(s) of channel state information. UEs may measure a multicast channel to determine channel state information for the multicast channel and transmit sounding reference signals over one of the shared reference signal resources that is associated with the set of channel state information determined by the UE. A base station that receives the sounding reference signal may transmit a subsequent multicast transmission for the UEs using transmission parameters that are adapted for the set(s) of channel state information associated with the occupied sounding reference signal resource.

公开(公告)号：US20210144639A1

公开(公告)日：2021-05-13

申请号：US17090721

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Alberto Rico Alvarino ,  Le Liu ,  Peter Gaal ,  Xipeng Zhu

IPC: H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, such as a user equipment (UE) may monitor a pre-wakeup window during an inactive duration of a multicast discontinuous reception (DRX) cycle that includes multiple active durations and multiple inactive durations. The UE may receive, in the pre-wakeup window, a wakeup signal that indicates a quantity of the active durations in the multicast DRX cycle that the UE is to monitor and the UE may monitor the indicated quantity of active durations for multicast signals for the UE.

公开(公告)号：US20210112499A1

公开(公告)日：2021-04-15

申请号：US17066325

申请日：2020-10-08

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Le Liu ,  Alberto Rico Alvarino ,  Wanshi Chen

IPC: H04W52/08 ,  H04W4/06 ,  H04W52/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive a control message scheduling a multicast transmission, where the UE may identify a closed loop power control parameter for transmitting acknowledgment feedback responsive to the multicast transmission based on the multicast transmission transmitted to multiple UEs. The closed loop power control parameter may be indicated by a base station in a separate message than a downlink control information (DCI) scheduling the multicast transmission. For example, the base station may transmit the indication of the closed loop power control parameter in a group-transmit power control DCI or in a configuration for transmitting sounding reference signals. Additionally, the UE may adjust a transmit power for the acknowledgment feedback based on whether or not a DCI scheduling a retransmission is received in a time window after transmitting the acknowledgment feedback.