公开(公告)号：US20170180001A1

公开(公告)日：2017-06-22

申请号：US15279991

申请日：2016-09-29

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Xiao Feng WANG ,  Wanshi CHEN ,  Peter GAAL ,  Juan MONTOJO ,  Alberto RICO ALVARINO ,  Seyed Ali Akbar FAKOORIAN

IPC: H04B1/7143 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04B1/7143 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0053 ,  H04L27/2613 ,  H04W4/70 ,  H04W74/002 ,  H04W74/0833

Abstract: Due to the limited dimension of a NB that may be used by multiple users, as well as possible large coverage areas, timing offset estimation may be outside of NCP. The inaccuracy in the timing estimate can be improved by using more than one tone hopping distance for PRACH. An apparatus may then transmit a first and second tone of the PRACH at a first hopping distance from the first tone. The apparatus may then transmit a third tone of the PRACH and a fourth tone of the PRACH at a second hopping distance from the third tone. The second hopping distance may be greater than first hopping distance. The apparatus may also transmit an additional tone of the PRACH using a random hopping distance. A receiving apparatus may receive the transmitted PRACH and determine a phase estimation based on the sets of tones having different hopping distances.

公开(公告)号：US20170134199A1

公开(公告)日：2017-05-11

申请号：US15255069

申请日：2016-09-01

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Xiao Feng WANG ,  Wanshi CHEN ,  Yongbin WEI ,  Seyed Ali Akbar FAKOORIAN ,  Alberto RICO ALVARINO ,  Madhavan Srinivasan VAJAPEYAM ,  Jing LEI

IPC: H04L27/26 ,  H04W74/08 ,  H04B1/713 ,  H04L5/00

CPC classification number: H04L27/2602 ,  H04B1/713 ,  H04B7/066 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/0091 ,  H04L27/26 ,  H04L27/2666 ,  H04L69/24

Abstract: An apparatus may receive signaling from a base station that indicates different tone indices. The apparatus may further transmit a plurality of symbols in a single tone uplink transmission. In an aspect, groups of symbols in the plurality of symbols are transmitted using the different tone indices of the single tone uplink transmission indicated by the received signaling. A second apparatus may signal to at least one user equipment (UE) information associated with different tone indices for use in transmitting a plurality of symbols in a single tone uplink transmission. The second apparatus may further receive the plurality of symbols in the single tone uplink transmission. In an aspect, pairs of symbols in the plurality of symbols are received in different tone indices of the single tone uplink transmission.

公开(公告)号：US20250150160A1

公开(公告)日：2025-05-08

申请号：US18503442

申请日：2023-11-07

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Xiao Feng WANG ,  Umesh PHUYAL ,  Alberto RICO ALVARINO

IPC: H04B7/185 ,  H04W48/10 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a distributed unit (DU) of a network node associated with a non-terrestrial network (NTN), an uplink transmission, wherein the DU is onboard a satellite and a central unit (CU) of the network node is on ground. The UE may receive, from the DU, a downlink transmission based at least in part on a delayed downlink channel monitoring window, wherein the delayed downlink channel monitoring window is based at least in part on a first time offset and a second time offset, the first time offset is associated with a UE-DU round-trip time (RTT), and the second time offset is associated with a CU-DU RTT. Numerous other aspects are described.

公开(公告)号：US20250142586A1

公开(公告)日：2025-05-01

申请号：US18500038

申请日：2023-11-01

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Jing SUN ,  Xiao Feng WANG

IPC: H04W72/232 ,  H04W72/044

Abstract: Apparatus, methods, and computer program products for wireless communication are provided. An example method may include receiving, from a network node, a first stage downlink control information (DCI) associated with a second stage DCI, where the first stage DCI comprises information regarding a set of time and frequency resources associated with a physical downlink shared channel (PDSCH), and where the second stage DCI includes decoding information associated with the PDSCH. The example method may further include receiving, from the network node based on the information regarding the set of time and frequency resources, a transmission including the second stage DCI and the PDSCH, where the second stage DCI is multiplexed with the PDSCH, and where the second stage DCI is overlapping in time with the PDSCH. The example method may further include decoding the PDSCH based on the second stage DCI.

公开(公告)号：US20250141535A1

公开(公告)日：2025-05-01

申请号：US18495664

申请日：2023-10-26

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Chiranjib SAHA

IPC: H04B7/185

Abstract: A method of wireless communication at a UE is disclosed herein. The method includes receiving, via a satellite and over a first bandwidth and a first beam, at least one of an SSB or a SIB for a cell. The method includes receiving, via the satellite and over a second bandwidth and a second beam, at least one of a CSI-RS or DM-RS for data transmission for a zone within the cell, where the first bandwidth is less than the second bandwidth, and where a first width of the first beam is greater than a second width of the second beam. The method includes communicating via the satellite based on at least one of the SSB, the SIB, the CSI-RS, or the DM-RS.

公开(公告)号：US20250113317A1

公开(公告)日：2025-04-03

申请号：US18791807

申请日：2024-08-01

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Umesh PHUYAL ,  Xiao Feng WANG

IPC: H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine that it is communicating with a particular type of cell (e.g., an air to ground (ATG) cell), and may utilize a timing advance (TA) report format corresponding to the determined cell type. The TA report for an ATG cell may use all 16 bits of a TA report to indicate a TA value according to a small time unit. The TA report for an ATG cell may utilize a subset of bits to indicate a symbol-level TA, and the remainder of bits in the TA report may be unused. The TA report for an ATG cell may be a single octet TA report, including reserved bits and a bit that indicates a format for the TA report, and the TA value. The TA report may include reserved bits and the TA value.

公开(公告)号：US20250105955A1

公开(公告)日：2025-03-27

申请号：US18473112

申请日：2023-09-22

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Ayan SENGUPTA

IPC: H04L5/00 ,  H04J13/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may account for the application of orthogonal cover coding (OCC) to an uplink transmission when determining the transport block size (TBS) for the uplink transmission. OCC may be used to multiplex transmissions from multiple UEs and may involve spreading information. Described techniques may involve accounting for the spreading of information bits when determining the TBS for the uplink transmission to which OCC is applied. Sub-physical resource block (sub-PRB) frequency allocations may be provided for uplink transmissions. The UE may account for the allocated quantity of sub-carriers when determining the quantity of information bits. To indicate a sub-PRB, the UE may be configured to reinterpret one or more fields of an existing downlink control information (DCI) format as indicating the allocated sub-carriers, or a new DCI format may be configured that includes fields for indicating a sub-PRB allocation.

公开(公告)号：US20250081283A1

公开(公告)日：2025-03-06

申请号：US18459054

申请日：2023-08-31

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Xiao Feng WANG ,  Alberto RICO ALVARINO

IPC: H04W76/28 ,  H04B7/185 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control messages including information indicative of a resource allocation associated with a discontinuous operation at a serving cell of the UE. The resource allocation may further be associated with at least one non-terrestrial network (NTN) cell serving a coverage area including the UE. The UE may communicate, during an active period associated with the discontinuous operation, data messages via frequency resources of a first frequency band in accordance with the resource allocation associated with the discontinuous operation. The active period at the serving cell may be non-overlapping with a second active period associated with a second discontinuous operation at a second cell. The UE may communicate, during an inactive period associated with the discontinuous operation, signals via frequency resources of a second frequency band in accordance with the resource allocation associated with the discontinuous operation.

公开(公告)号：US20250056505A1

公开(公告)日：2025-02-13

申请号：US18644911

申请日：2024-04-24

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Gokul SRIDHARAN ,  Chiranjib SAHA ,  Harikumar KRISHNAMURTHY

IPC: H04W72/0446 ,  H04B7/06 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a nominal time domain window duration and at least one of a quantity of nominal time domain windows or a quantity of actual time domain windows for demodulation reference signal bundling. The UE may calculate, in accordance with the quantity of nominal time domain windows being a single nominal time domain window or the quantity of actual time domain windows being a single actual time domain window, and in accordance with an indication that antenna switching is enabled, an adjusted nominal time domain window duration in accordance with applying a parameter to the nominal time domain window duration. The UE may calculate an adjusted quantity of nominal time domain windows and may identify a plurality of actual time domain windows. Numerous other aspects are described.

公开(公告)号：US20250016795A1

公开(公告)日：2025-01-09

申请号：US18348206

申请日：2023-07-06

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Xiao Feng WANG ,  Jing SUN

IPC: H04W72/232 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of an association between first-stage downlink control information (DCI) and second-stage DCI. The UE may recover the second-stage DCI based at least in part on the indication of the association. Numerous other aspects are described.