公开(公告)号：US11622365B1

公开(公告)日：2023-04-04

申请号：US17524716

申请日：2021-11-11

Applicant: QUALCOMM Incorporated

Inventor： Abdelrahman Mohamed Ahmed Mohamed Ibrahim ,  Muhammad Sayed Khairy Abdelghaffar ,  Tingfang Ji ,  Ahmed Attia Abotabl ,  Wanshi Chen ,  Huilin Xu ,  Renqiu Wang

IPC: H04W72/12 ,  H04W56/00 ,  H04W72/1268

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify that it is scheduled to transmit an uplink message during one or more symbols of a first transmission time interval (TTI) is scheduled to receive a downlink message during a second TTI subsequent to the first TTI. The UE may advance transmission of the uplink message in accordance with a timing advance (TA) value and a TA offset value, such that the timing advance offset value is zero. The UE may proceed to apply a transient power mitigation scheme to mitigate potential interference to reception of the downlink message during a transient power duration associated with turning off an uplink transmission chain used for transmitting the uplink message. In some examples, the transient power mitigation scheme may be applied based on the TA offset value being zero.

公开(公告)号：US11616582B2

公开(公告)日：2023-03-28

申请号：US17190227

申请日：2021-03-02

Applicant: QUALCOMM Incorporated

Inventor： Yeliz Tokgoz ,  Jay Kumar Sundararajan ,  Naga Bhushan ,  Taesang Yoo ,  Krishna Kiran Mukkavilli ,  Hwan Joon Kwon ,  Tingfang Ji

IPC: H04B17/345 ,  H04B17/327 ,  H04B17/336 ,  H04B17/373 ,  H04B17/391 ,  H04L5/00 ,  H04W4/021

Abstract: A method of wireless communication by a network device includes receiving a location of a user equipment (UE). The method also includes receiving information associated with neighbor cell transmit beams. The method further includes predicting a spatial inter-cell interference-based distribution at the location of the UE based on the information associated with the neighbor cell transmit beams.

公开(公告)号：US11606782B2

公开(公告)日：2023-03-14

申请号：US14963814

申请日：2015-12-09

Applicant: QUALCOMM Incorporated

Inventor： Kambiz Azarian Yazdi ,  Jing Jiang ,  Tingfang Ji ,  John Edward Smee

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/1867 ,  H04L1/1607 ,  H04L1/00 ,  H04W72/08 ,  H04W24/08

Abstract: A transmitter may allocate resources across multiple links for a transmission to a receiver. The transmitter may transmit a resource grant to the receiver. The transmission may include a data packet allocated across multiple links, and pilot signals on a number of links. The receiver may use an indicator included with the resource grant to trigger measurement of channel quality for links with pilot signals.

公开(公告)号：US11581982B2

公开(公告)日：2023-02-14

申请号：US16863903

申请日：2020-04-30

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Amir Aminzadeh Gohari ,  Jaeyoung Kwak ,  Peter Gaal ,  Aamod Khandekar ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Wanshi Chen ,  Enoch Shiao-Kuang Lu ,  Gabi Sarkis ,  Chao Jin

IPC: H04L1/18 ,  H04L1/1812 ,  H04L1/00 ,  H04L1/1829

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may interrupt a user equipment (UE) during transport block (TB) encoding. The UE may cancel transmission (e.g., suppress processing) of a TB based on the interruption, such that a first subset of code blocks is encoded and a second subset is unencoded. In some cases, the UE may receive a re-transmission request for a code block including cyclic redundancy check (CRC) bits for the TB, where the CRC bits are not prepared. In one example, the UE may modify the CRC bits (e.g., set them to a common value, drop them, etc.) to reduce processing time. In another example, the base station may request re-transmission of all preempted code blocks, supporting TB CRC calculation. In another example, the base station or UE may extend a processing timeline for the re-transmission to support TB CRC calculation.

公开(公告)号：US11570760B2

公开(公告)日：2023-01-31

申请号：US16579472

申请日：2019-09-23

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Jing Jiang ,  Tingfang Ji

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/26 ,  H04L41/0896 ,  H04L27/00

Abstract: Methods, systems, and devices for wireless communication are described that provide for uplink channel multiplexing and waveform selection. Uplink channels to be transmitted from one or more user equipment (UEs) to a base station are multiplexed together or separately into an uplink subframe. Each UE is capable of using different waveforms to transmit different channels. Reference signals are communicated according to an RS pattern, which is symmetric across uplink and downlink channels.

公开(公告)号：US11563472B2

公开(公告)日：2023-01-24

申请号：US17427585

申请日：2020-01-31

Applicant: Qualcomm Incorporated

Inventor： Bo Chen ,  Yuwei Ren ,  Renqiu Wang ,  Ruifeng Ma ,  Pavan Kumar Vitthaladevuni ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Hao Xu

IPC: H04B7/0456 ,  H04B7/06 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit feedback to a base station indicating phase values for sub-bands in a bandwidth part (BWP). The base station may use the phase feedback to perform precoding on a set of beams. To support a reduced payload overhead for the feedback, the UE may implement differential phase feedback. For example, the UE may divide the BWP into a number of sub-band groups and may generate, for each sub-band group of each beam, a first set of bits indicating an absolute phase value for a first sub-band of the sub-band group. The UE may additionally generate a second set of bits indicating differential phase values for the other sub-bands of each sub-band group. The UE may report the first and second sets of bits for the beams to the base station for precoding.

公开(公告)号：US11558846B2

公开(公告)日：2023-01-17

申请号：US16824349

申请日：2020-03-19

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Sven Fischer ,  Stephen William Edge ,  Joseph Binamira Soriaga ,  Tao Luo ,  Peter Gaal ,  Alexandros Manolakos ,  Guttorm Ringstad Opshaug ,  Zhimin Du ,  Yiqing Cao ,  Tingfang Ji ,  Lorenzo Casaccia

IPC: H04W64/00 ,  H04W12/037

Abstract: A reference signal periodically transmitted by a base station in a wireless network can have certain proprietary properties to help prevent detection and utilization of the signal for unauthorized positioning of mobile devices. More specifically, a network node can obscure and introduce time-variation in mapping between positioning signals and a corresponding physical base stations. The network node may also introduce time variations in fields of a base station almanac (BSA) provided to subscribing user equipments (UEs). The information transmitted to the subscribing UEs may be encrypted.

公开(公告)号：US11509368B1

公开(公告)日：2022-11-22

申请号：US17482219

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Danlu Zhang ,  Naga Bhushan ,  Abdelrahman Mohamed Ahmed Mohamed Ibrahim ,  Pinar Sen ,  Renqiu Wang ,  Tingfang Ji ,  Krishna Kiran Mukkavilli

IPC: H04L23/02 ,  H04B7/0456 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a request for beamforming information associated with line-of-sight (LoS) multiple input multiple output (MIMO) communication from a second wireless device. The first wireless device may generate a channel estimation matrix for a channel between rectangular antenna arrays of the respective wireless devices, the channel estimation matrix including one or more quadratic terms for the LoS MIMO communication. The first wireless device may generate a first sub-matrix and a second sub-matrix based on the channel estimation matrix. The first wireless device may transmit an indication of a set of precoders for the LoS MIMO communication, the set of precoders based on a symmetry associated with the first and second sub-matrices, and may receive the LoS MIMO communication from the second wireless device based on the set of precoders.

公开(公告)号：US11502790B2

公开(公告)日：2022-11-15

申请号：US17180639

申请日：2021-02-19

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Yang ,  Peter Gaal ,  Wanshi Chen ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04L5/00 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) or a base station, or both, may generate a set of orthogonal sequences that the UE may use to convey a payload of a number of bits based on a product of an orthogonal matrix and a cell-specific sequence. The UE or the base station, or both, may select a subset of the set of orthogonal sequences based on the number of bits in the payload, and the UE may construct a codebook including the subset of orthogonal sequences. The UE may select an orthogonal sequence from the constructed codebook based on the bits in the payload. The UE may transmit the payload including the number of bits to the base station using the selected orthogonal sequence.

公开(公告)号：US11470664B2

公开(公告)日：2022-10-11

申请号：US16866788

申请日：2020-05-05

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Durga Prasad Malladi ,  Yongbin Wei ,  Peter Gaal ,  Tao Luo ,  Tingfang Ji ,  Gavin Bernard Horn ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04L1/00 ,  H04L27/26 ,  H04L5/14 ,  H04L27/00 ,  H04W76/15 ,  H04L5/00 ,  H04W48/10 ,  H04W72/08 ,  H04W74/00 ,  H04L1/06 ,  H04W28/02 ,  H04W74/08 ,  H04W24/02 ,  H04W28/08 ,  H04W28/16 ,  H04W72/04 ,  H04W56/00 ,  H04W74/04 ,  H04W16/14 ,  H04W88/06 ,  H04W88/08 ,  H04W84/12 ,  H04J11/00 ,  H04W88/02

Abstract: Methods and apparatuses are described for wireless communications. A first method includes transmitting a first Orthogonal Frequency-Division Multiple Access (OFDMA) communications signal to a wireless node in a licensed spectrum, and transmitting, concurrently with the transmission of the first OFDMA communications signal, a second OFDMA communications signal to the wireless node in an unlicensed spectrum. A second method includes receiving a first Orthogonal Frequency-Division Multiple Access (OFDMA) communications signal from a wireless node in a licensed spectrum, and receiving, concurrently with the reception of the first OFDMA communications signal, a second OFDMA communication signal from the wireless node in an unlicensed spectrum. A third method includes generating a periodic gating interval for a cellular downlink in an unlicensed spectrum, and synchronizing at least one boundary of the periodic gating interval with at least one boundary of a periodic frame structure associated with a primary component carrier of the cellular downlink.