公开(公告)号：US20220006600A1

公开(公告)日：2022-01-06

申请号：US17359377

申请日：2021-06-25

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Peter Pui Lok Ang ,  Ayan Sengupta ,  Bharat Shrestha

IPC: H04L5/00 ,  H04B7/185

Abstract: Methods, systems, and devices for wireless communications are described. Various techniques for bandwidth part activation and signaling are described. Control messaging may be used to indicate a mapping of beams and bandwidth part to respective indices, such as a bandwidth part identifier or a transmission configuration indicator (TCI) state codepoint. Further control messaging may specify one of these indices, and a user equipment (UE) may communicate with a network entity, such as a satellite or base station using a bandwidth part in a beam specified in the control messaging.

公开(公告)号：US20210410220A1

公开(公告)日：2021-12-30

申请号：US17352866

申请日：2021-06-21

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/19 ,  H04W4/06 ,  H04W72/14 ,  H04W72/12 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to the base station, a beam recovery request including an indication of a multicast beam, where the beam recovery request is transmitted based at least in part on a unicast uplink grant, and where the unicast uplink grant comprises a set of uplink resources for a multicast beam recovery procedure based at least in part on a failure of the multicast beam associated with multicast communications between the UE and the base station. The UE may receive, from the base station in response to the beam recovery request, a response message including an indication of a second uplink grant, an indication of a second beam for communications between the UE and the base station, or both. The UE may transmit a first uplink transmission via the second uplink grant, the second beam, or both.

公开(公告)号：US20210392466A1

公开(公告)日：2021-12-16

申请号：US17341801

申请日：2021-06-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/06 ,  H04W8/24 ,  H04L1/18 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a multicast service available for subscription by the UE or to which the UE is already subscribed. The UE may transmit a message, to a network node, that may include UE assistance information (UAI) indicating at least one of a UE capability to process multicast transmissions or a feedback scheme preference for reporting feedback for the multicast transmissions. The UAI may also include at least one of a multicast carrier preference, band or carrier measurement report, a multicast priority indication, or a measurement and reporting scheme preference for the multicast transmissions. The network node may receive the UAI and determine one or more parameters for multicast communications with the UE based on the UAI. The UE may receive the multicast transmissions from the network node in accordance with the UAI.

公开(公告)号：US20210314892A1

公开(公告)日：2021-10-07

申请号：US17173682

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Seyedkianoush Hosseini ,  Xiao Feng Wang ,  Liangping Ma ,  Ayan Sengupta ,  Jun Ma ,  Huilin Xu ,  Peter Gaal ,  Bharat Shrestha

IPC: H04W56/00 ,  H04L1/18 ,  H04W72/04 ,  H04L27/26 ,  H04W74/08

Abstract: A scheduling offset between an uplink and downlink radio frame timing structure of a user equipment (UE) may be updated to provide for more efficient utilization of hybrid automatic repeat request (HARQ) processes in a non-terrestrial network. For instance, different UEs may experience different round trip delays (RTDs) with a non-terrestrial cell. Different UEs may be configured with different scheduling offsets such that scheduling delays may be reduced and HARQ processes identifiers may be reused more rapidly. Additionally or alternatively, wireless communications systems may define one or more separation distances (or timing thresholds) for timing between communications and HARQ processes may be reused based on the separation distance threshold (e.g., such that a satellite may reuse a HARQ process ID for two scheduled communications that have not yet been performed by the UE).

公开(公告)号：US11121902B2

公开(公告)日：2021-09-14

申请号：US16372378

申请日：2019-04-01

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino

IPC: H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may identify a first signal in a time domain, the first signal including multiple sequences spanning a bandwidth for multiple symbol periods. The transmitting device may segment the first signal into signal segments, where each signal segment corresponds to a respective symbol period of the multiple symbol periods. The transmitting device may apply a first transform operation to each signal segment of the signal segments and apply a bandwidth restriction in the frequency domain to the transformed signal segments. Then, the transmitting device may apply a second transform operation to each transformed signal segment to return the bandwidth-restricted segments to the time domain. The transmitting device may generate a second signal in the time domain based on the bandwidth-restricted segments. The transmitting device may then transmit the second signal to a receiving device.

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：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：US20210051636A1

公开(公告)日：2021-02-18

申请号：US16992952

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Le Liu

IPC: H04W72/04 ,  H04B1/713

Abstract: Methods, systems, and devices for wireless communications are described. Transport blocks may be scheduled using a single downlink control information (DCI) message. A wireless device may identify mapping pattern for mapping the transport blocks and repetitions of the transport blocks to communication resources. Mapping the transport blocks, or determining a mapping of the transport blocks, to communication resources may include partitioning the communication resources into subunits, where each subunit includes resources spread across each subband of a frequency hopping pattern and at least one instance of each of the scheduled transport blocks.

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.