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：US20210259031A1

公开(公告)日：2021-08-19

申请号：US17154921

申请日：2021-01-21

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Bharat Shrestha ,  Mungal Singh Dhanda ,  Alberto Rico Alvarino ,  Luis Fernando Brisson Lopes ,  Umesh Phuyal ,  Miguel Griot ,  Sebastian Speicher

IPC: H04W76/11 ,  H04W76/27 ,  H04W8/24 ,  H04W8/08 ,  H04W48/16 ,  H04W4/70

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may truncate or remove a number of bits from its UE identity based on identity truncating information to generate a truncated UE identity. The truncated UE identity can be transmitted by eMTC devices to a base station in an RRC connection request, and can be used by the base station to determine which core network entity stores the UE's capabilities. In some implementations, the UE may truncate or remove a number of bits from the 48-bit 5G-S-TMSI based on the identity truncating information to generate a 40-bit truncated 5G-S-TMSI that can be transmitted by an eMTC device to the base station in the RRC connection request and yet still provide the base station with enough information to determine which AMF stores the UE context.

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：US11025373B2

公开(公告)日：2021-06-01

申请号：US16407579

申请日：2019-05-09

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Umesh Phuyal ,  Peter Gaal

IPC: H04L1/18 ,  H04W28/02 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, devices may implement transmission repetitions for transport blocks (TBs) to improve reception reliability. However, to support low latency, TBs may be transmitted in any transmission time interval (TTI) within a subframe. The systems may implement process to handle these TB repetitions. In some cases, a device may receive, during a TTI of a subframe, control information including an indication of transmission repetitions of a TB for a plurality of TTIs, identify a quantity of transmission repetitions of the TB based on the control information, and monitor for the transmission repetitions of the TB.

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：US10736019B2

公开(公告)日：2020-08-04

申请号：US16123354

申请日：2018-09-06

Applicant: QUALCOMM Incorporated

Inventor： Dominique Francois Bressanelli ,  Chun-Hao Hsu ,  Alberto Rico Alvarino ,  Umesh Phuyal

IPC: H04W48/14 ,  H04W76/11 ,  H04W72/04 ,  H04W76/27 ,  H04W4/70 ,  H04L5/00 ,  H04W36/30 ,  H04W8/26 ,  H04W36/14

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for improving service recovery using communications systems operating according to new radio (NR) technologies. For example, a method may include receiving an uplink transmission from a user equipment (UE) with a Cell Radio Network Temporary Identifier (C-RNTI), determining the C-RNTI lacks context at the network entity, and signaling, in response to the determination, an indication of an immediate C-RNTI release to the UE.

公开(公告)号：US20200245334A1

公开(公告)日：2020-07-30

申请号：US16749790

申请日：2020-01-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L1/18 ,  H04W80/02 ,  H04W80/08 ,  H04W76/27 ,  H04W24/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. that support preconfigured uplink resources (PUR) in wireless communications. A base station may communicate that support for PUR is available, and may allocate PUR resources to a user equipment (UE) based on requests from the UE. The UE may receive an indication that the base station supports PUR, such as via a system information block (SIB), determine to request PUR, and transmit a PUR request message to the base station. A PUR response from the base station may indicate a PUR allocation for the UE that may be used for uplink transmissions. Uplink transmissions that use PUR may be acknowledged by the base station based on a QOS associated with the uplink transmissions.

公开(公告)号：US20200100318A1

公开(公告)日：2020-03-26

申请号：US16583009

申请日：2019-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Le Liu

IPC: H04W76/30 ,  H04W74/08 ,  H04W72/04 ,  H04W74/02 ,  H04W68/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a connection release message, the connection release message including a resource indicator indicating that a set of resources are to be used for grant-free uplink transmissions by the UE while operating in a disconnected state. The UE may transition from a connected state to a disconnected state based at least in part on the connection release message. The UE may perform, while operating in the disconnected state, the grant-free uplink transmissions using the set of resources.