公开(公告)号：US20210250918A1

公开(公告)日：2021-08-12

申请号：US17157778

申请日：2021-01-25

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Xiaoxia ZHANG ,  Tao LUO ,  Prasad Reddy KADIRI ,  Ayan SENGUPTA ,  Kazuki TAKEDA ,  Umesh PHUYAL

IPC: H04W72/04 ,  H04W4/06 ,  H04L1/18

Abstract: Aspects described herein relate to indicating downlink control information (DCI) for multicast and/or broadcast (MB) communications using DCI formats that may be based on existing DCI formats and/or size for unicast communications, paging signals, system information signals, etc., or may include shortened formats without fields for information that may not be used in MB communications.

公开(公告)号：US20210014096A1

公开(公告)日：2021-01-14

申请号：US16922586

申请日：2020-07-07

Applicant: QUALCOMM Incorporated

Inventor： Ayan SENGUPTA ,  Alberto RICO ALVARINO ,  Arash MIRBAGHERI ,  Chu-Hsiang HUANG

IPC: H04L27/26 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a set of resources, in a set of physical multicast channel symbols, for receiving a first type of reference signal and a second type of reference signal. The UE may receive one or more reference signal transmissions in accordance with the set of resources. Numerous other aspects are provided.

公开(公告)号：US20200252903A1

公开(公告)日：2020-08-06

申请号：US16780741

申请日：2020-02-03

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Le LIU ,  Arash MIRBAGHERI ,  Umesh PHUYAL ,  Mungal Singh DHANDA ,  Ayan SENGUPTA

IPC: H04W68/02 ,  H04W72/12 ,  H04L5/00

Abstract: A base station may calculate a scheduling value based on at least one of a number of groups associated with a set of UEs operating on a cell provided by the base station a radio frame number, or a subframe number. The base station may send, based on the calculated scheduling value, at least one NRS in at least one PO on a narrowband control channel. A UE may receive, from the base station providing the cell, information associated with at least one PO for the UE. The UE may determine, based on the received information, scheduling information associated with at least one NRS in the at least one PO. The UE may detect the at least one NRS in the at least one PO on a narrowband control channel when the determined scheduling information indicates the at least one NRS is in the at least one PO.

公开(公告)号：US20250159683A1

公开(公告)日：2025-05-15

申请号：US18506987

申请日：2023-11-10

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Ayan SENGUPTA

IPC: H04W72/1273 ,  H04L1/00 ,  H04W4/06 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A network entity may transmit DCIs to a UE to schedule instances of one or more MBS TBs, the multiple instances of the one or more TBs being time-interleaved. For example, the network entity may transmit a first set of DCIs scheduling a first set of instances of a first TB, and a second set of DCIs scheduling a second set of instances of a second TB, where at least one instance of the first set of instances may be interleaved with the second set of instances. In some cases, the first and second set of DCIs may include one DCI to schedule the respective set of instances, or one DCI per instance of the respective set of instances. Additionally, or alternatively, the network entity may indicate one or more parameters to the UE associated with MBS inter-TB time interleaving.

公开(公告)号：US20250119250A1

公开(公告)日：2025-04-10

申请号：US18471140

申请日：2023-10-04

Applicant: QUALCOMM Incorporated

Inventor： Syed Hashim Ali SHAH ,  Ayan SENGUPTA ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Liangping MA

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A reference signal distribution scheme described herein may allow for the benefits of orthogonal cover codes, and improve mechanisms to identify and address resulting carrier frequency offset. Techniques are described for distributing reference signals (e.g., demodulation reference signals) over a set of resources. The reference signals may be arranged in equi-spaced clusters, where groups of the reference signals per cluster are spaced according to a first timing offset, and where each cluster may be spaced according to a second timing offset. The network may configure the reference signal distribution scheme at various user equipments, indicating values for the timing offset. The user equipments may transmit reference signals according to the indicated scheme.

公开(公告)号：US20250106841A1

公开(公告)日：2025-03-27

申请号：US18472690

申请日：2023-09-22

Applicant: QUALCOMM Incorporated

Inventor： Syed Hashim Ali SHAH ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Liangping MA ,  Ayan SENGUPTA

IPC: H04W72/1268 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration associated with an orthogonal cover code (OCC), wherein the configuration indicates a multiplexing order, an OCC codeword for multiplexing, and a type of OCC, and the type of OCC is one of: frequency domain OCC (FD-OCC), time domain OCC (TD-OCC), sub physical resource block (sub-PRB) OCC, or sub-slot OCC. The UE may apply, based at least in part on the configuration, the OCC to an uplink transmission. The UE may transmit the uplink transmission with the OCC applied based at least in part on the configuration. Numerous other aspects are described.

公开(公告)号：US20250097954A1

公开(公告)日：2025-03-20

申请号：US18467299

申请日：2023-09-14

Applicant: QUALCOMM Incorporated

Inventor： Ayan SENGUPTA ,  Alberto RICO ALVARINO ,  Javier RODRIGUEZ FERNANDEZ

IPC: H04W72/231 ,  H04W72/0446 ,  H04W72/30 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communication are described. In some aspects, a network entity may encode, at an application layer, multiple internet protocol (IP) packets with an application level outer code to generate outer encoded IP packets. In such aspects, the network entity may generate, for each of the outer encoded IP packets, a medium access control (MAC) packet data unit (PDU) at a MAC layer. In one aspect, the network entity may map each MAC PDU to a respective code block of a single transport block (TB) and broadcast the TB. Alternatively, the network entity may map each MAC PDU to a single codeblock of a respective TB and broadcast the TB via a single time slot. In some other aspects, the network entity may perform physical or MAC layer outer encoding on the IP packets, where the network entity may perform outer encoding on multiple MAC PDUs.

公开(公告)号：US20250055748A1

公开(公告)日：2025-02-13

申请号：US18928647

申请日：2024-10-28

Applicant: QUALCOMM Incorporated

Inventor： Ayan SENGUPTA ,  Javier RODRIGUEZ FERNANDEZ ,  Alberto RICO ALVARINO

IPC: H04L27/26 ,  H04L5/00 ,  H04W4/06

Abstract: Methods, systems, and devices for wireless communications are described. A device may receive a set of demodulation reference signals (DMRSs) over a multi-path channel on a set of resources in accordance with a reference signal pattern. The reference signal pattern may be associated with a non-uniform frequency spacing that results in a row-sampled Discrete Fourier Transform (DFT) matrix associated with the reference signal pattern having a lower coherence than other row-sampled DFT matrices. Additionally or alternatively, the device may receive a set of tracking reference signals (TRSs) over the multi-path channel. The set of TRSs may be specific to wide-area terrestrial broadcast services, single frequency network (SFN)-based broadcast services, multimedia broadcast multicast services (MBMSs), or the reference signal pattern. The device may perform channel estimation based on receiving one or both of the set of DMRSs or the set of TRSs over the multi-path channel.

公开(公告)号：US20240340890A1

公开(公告)日：2024-10-10

申请号：US18625011

申请日：2024-04-02

Applicant: QUALCOMM Incorporated

Inventor： Ayan SENGUPTA ,  Alberto RICO ALVARINO ,  Le LIU ,  Xiao Feng WANG ,  Syed Hashim Ali SHAH

IPC: H04W72/1268 ,  H04L1/00 ,  H04L1/1812 ,  H04W8/22

CPC classification number: H04W72/1268 ,  H04L1/0071 ,  H04L1/1812 ,  H04W8/22

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a grant scheduling a multi-transport block uplink transmission by the UE, the multi-transport block uplink transmission comprising two or more transport blocks associated with a common hybrid automatic repeat/request process identifier. The UE may perform the multi-transport block uplink transmission according to the grant.

公开(公告)号：US20240297761A1

公开(公告)日：2024-09-05

申请号：US18573886

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Peter GAAL ,  Changhwan PARK ,  Ayan SENGUPTA ,  Wanshi CHEN ,  Jun MA ,  Bharat SHRESTHA ,  Huilin XU ,  Umesh PHUYAL ,  Juan MONTOJO ,  Yiqing CAO

IPC: H04L5/00 ,  H04W72/1268 ,  H04W84/06

CPC classification number: H04L5/0051 ,  H04W72/1268 ,  H04W84/06

Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a UE that generally includes transmitting a first sounding reference signal (SRS), from a first antenna port in a first symbol, on one or more tones determined by a first comb size and a first tone offset, transmitting a second SRS, from a second antenna port in the first symbol, on one or more tones determined by the first comb size and a second tone offset different than the first tone offset, transmitting a third SRS, from the first antenna port in a second symbol, on one or more tones determined by the first comb size and the second tone offset, and transmitting a fourth SRS, from the second antenna port in the second symbol, on one or more tones determined by the first comb size and the first tone offset.