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    Low latency communication
    1.
    发明授权
    Low latency communication 有权

    公开(公告)号：US12302334B2

    公开(公告)日：2025-05-13

    申请号：US17110025

    申请日：2020-12-02

    Applicant: QUALCOMM Incorporated

    Inventor： Shimman Arvind Patel ,  Wanshi Chen ,  Peter Gaal

    IPC: H04W72/23 ,  H04L5/00 ,  H04W4/70 ,  H04W8/00 ,  H04W48/12 ,  H04W72/0446 ,  H04W76/14 ,  H04W88/02 ,  H04W88/08

    Abstract: Methods, systems, and devices for wireless communication using various patterns of data and reference signals are described. For example, in a system that supports operation using different duration transmission time intervals (TTIs), a base station may initiate communication with a user equipment (UE) or between two UEs, and UEs may communicate with the base station or with one another using an indicated pattern of data and reference signals. The base station may send a downlink control message indicating a transmission pattern selected from a set of patterns. UEs may identify the pattern based on the indicator and decode a sequence of data and reference signals based on the pattern. In some examples, the sequence may include a set of TTIs, which may have a shorter duration than other TTIs.

    Timing improvements for wireless communications systems
    2.
    发明授权
    Timing improvements for wireless communications systems 有权

    公开(公告)号：US12302264B2

    公开(公告)日：2025-05-13

    申请号：US18440963

    申请日：2024-02-13

    Applicant: QUALCOMM Incorporated

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

    IPC: H04W56/00 ,  H04W4/029 ,  H04W74/0833

    Abstract: Non-terrestrial networks (NTNs) may establish uplink (UL) and downlink (DL) radio frame timing structures to efficiently account for propagation delay and propagation delay variation associated with communications in the NTN. NTNs may manage (synchronize) radio frame timing structures of base stations (e.g., satellites) and user equipment (UEs) in the NTN. Further, UEs may determine timing advance (TA) values to be applied to UL transmissions based on their respective scheduling offset (e.g., offset in UL and DL radio frame timing structures), as well as based on propagation delay or round trip time (RTT). As such, served UEs may determine UL timing such that UL transmissions from the UEs to a satellite arrives at the satellite in a time synchronized manner. In other cases, a satellite may determine UL timing, based on reception timing, such that various UEs in the NTN may implement uniform UL and DL radio frame timing structures.

    Using automatic gain control symbol to indicate sidelink mini-slot
    3.
    发明授权
    Using automatic gain control symbol to indicate sidelink mini-slot 有权

    公开(公告)号：US12302261B2

    公开(公告)日：2025-05-13

    申请号：US17647718

    申请日：2022-01-11

    Applicant: QUALCOMM Incorporated

    Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Piyush Gupta ,  Junyi Li ,  Peter Gaal ,  Hua Wang ,  Juan Montojo ,  Jing Sun ,  Wooseok Nam

    IPC: H04W52/52 ,  H04W72/1263

    Abstract: Aspects of the present disclosure provide techniques for using automatic gain control symbols to indicate a sidelink mini-slot. A method performed by a transmitting user equipment includes transmitting, during a first time portion of a symbol within a slot, a first beam associated with a first receiving user equipment. The first time portion of the symbol is configured to indicate that the first receiving user equipment will receive another transmission from the transmitting user equipment during a first mini-slot within the slot associated with the first time portion. The method may further include transmitting, during a second time portion of the symbol within the slot, a second beam associated with a second receiving user equipment. The second time portion of the symbol is configured to indicate that the second receiving user equipment will receive another transmission from the transmitting user equipment during a second mini-slot within the slot.

    Antenna ports determination of UL TX switching
    4.
    发明授权
    Antenna ports determination of UL TX switching 有权

    公开(公告)号：US12294429B2

    公开(公告)日：2025-05-06

    申请号：US18268909

    申请日：2021-03-03

    Applicant: QUALCOMM Incorporated

    Inventor： Yiqing Cao ,  Peter Gaal ,  Alberto Rico Alvarino ,  Enoch Shiao-Kuang Lu ,  Wanshi Chen ,  Kazuki Takeda ,  Yan Li ,  Zhimin Du ,  Bin Han

    IPC: H04B7/06 ,  H04L5/00

    Abstract: A UE may determine a number of antenna ports associated with a frequency band that includes one or more CCs. The determined number of antenna ports may be based on a plurality of UL Tx chains for the one or more CCs/frequency band. The UE may switch from a first UL Tx chain to a second UL Tx chain, at least one of which may be associated with the one or more CCs/frequency band. The number of antenna ports may correspond to a maximum number of antenna ports of an individual CC of the one or more CCs, or to a sum of antenna ports of the one or more CCs. For the latter, the number of antenna ports may be limited to an available number of UE antenna ports when the sum of antenna ports is greater than the available number of UE antenna ports.

    CARRIER AGGREGATION SWITCHING FOR SWITCHING MULTIPLE RADIO FREQUENCY BANDS
    5.
    发明申请
    CARRIER AGGREGATION SWITCHING FOR SWITCHING MULTIPLE RADIO FREQUENCY BANDS 有权

    公开(公告)号：US20250126531A1

    公开(公告)日：2025-04-17

    申请号：US18694719

    申请日：2022-10-26

    Applicant: QUALCOMM INCORPORATED

    Inventor： Yiqing Cao ,  Peter Gaal ,  Wanshi Chen ,  Juan Montojo ,  Timo Ville Vintola ,  Bin Han ,  Alberto Rico Alvarino ,  Yi Huang ,  Yan Li ,  Zhimin Du

    IPC: H04W36/00 ,  H04W72/0453 ,  H04W72/1268

    Abstract: Methods, systems, and devices for wireless communication are described. A device may transmit first control signaling indicating a capability for switching between carriers of a group of carriers during uplink communications using carrier aggregation. The group of carriers include three or more carriers that are each associated with different radio frequency bands. The device may receive second control signaling that includes an indication for the device to switch to a subset of carriers of the group of carriers for transmission of an uplink message. The subset of carriers may be associated with a combination of radio frequency bands. The device may transmit the uplink message on at least one of the subset of carriers in accordance with a mapping between the combination of radio frequency bands and the at least one of the subset of carriers, where the mapping is based on the capability.

    UCI feedback enhancement for inter-band uplink carrier aggregation
    6.
    发明授权
    UCI feedback enhancement for inter-band uplink carrier aggregation 有权

    公开(公告)号：US12279264B2

    公开(公告)日：2025-04-15

    申请号：US17804968

    申请日：2022-06-01

    Applicant: QUALCOMM Incorporated

    Inventor： Kazuki Takeda ,  Peter Gaal ,  Gokul Sridharan

    IPC: H04W72/21 ,  H04L5/00 ,  H04W52/34 ,  H04W52/36 ,  H04W72/0453

    Abstract: Aspects are provided which allow a UE to apply power-efficient UCI multiplexing rules accounting for situations in which CCs of overlapping PUCCH and PUSCH are in different carrier groups during inter-band CA to result in improved transmission performance. The UE transmits UCI in a PUCCH in a first CC in response to the PUCCH overlapping in time with a PUSCH in a second CC and the first CC being associated with a different carrier group than the second CC. Alternatively, the UE transmits UCI in the PUSCH in the second CC in response to the PUCCH overlapping in time with the PUSCH and the first CC being associated with a same carrier group as the second CC. Furthermore, the UE may apply a diversity scheme for UCI transmissions to achieve improved reliability of UCI feedback. The UE may also indicate which carrier includes UCI based on different DMRS configurations.

    Interleaver design for multi-slot uplink shared channel transmission
    7.
    发明授权
    Interleaver design for multi-slot uplink shared channel transmission 有权

    公开(公告)号：US12279238B2

    公开(公告)日：2025-04-15

    申请号：US17655655

    申请日：2022-03-21

    Applicant: QUALCOMM Incorporated

    Inventor： Gokul Sridharan ,  Seyedkianoush Hosseini ,  Hung Dinh Ly ,  Peter Gaal

    IPC: H04W72/0446

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select, for a communication on a multi-slot transmission occasion, coded bits of a plurality of coded bits on a per slot basis, for each of multiple slots of the multi-slot transmission occasion. The UE may interleave the coded bits on a per slot basis to form one or more interleaved encoded bit sequences of a codeblock. The UE may transmit the communication including the one or more interleaved encoded bit sequences. Numerous other aspects are provided.

    Signaling a power offset between reference and data tones
    8.
    发明授权
    Signaling a power offset between reference and data tones 有权

    公开(公告)号：US12262332B2

    公开(公告)日：2025-03-25

    申请号：US17853695

    申请日：2022-06-29

    Applicant: QUALCOMM Incorporated

    Inventor： Hemant Saggar ,  Iyab Issam Sakhnini ,  Tao Luo ,  Peter Gaal

    IPC: H04W52/36 ,  H04L27/26

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish, with a network entity, a wireless connection that uses a set of symbols per transmission time interval (TTI) for orthogonal frequency division multiplexing (OFDM) communications, where each symbol of the set of symbols may correspond to a fast Fourier transform (FFT) window and may include a guard interval (GI) portion and a data portion within the FFT window. In some examples, the UE may receive a control message indicating at least one parameter associated with a power offset between a data signal of the set of symbols and a reference signal of the set of symbols that is associated with the data signal. As such, the UE may communicate with the network entity, the data signal, and the reference signal according to the indicated power offset using the set of symbols.

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