公开(公告)号：US20220295518A1

公开(公告)日：2022-09-15

申请号：US17200167

申请日：2021-03-12

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Assaf Touboul ,  Shay Landis ,  Michael Levitsky

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/08

Abstract: Wireless communication techniques for supporting, selecting, and using multiple waveforms and/or multiple decoders for downlink wireless communication are discussed. A UE may transmit to a base station a request to use a first waveform during a first time period for downlink wireless communication. The UE may receive from the base station a response to the request that includes an indication of a selected waveform to use during the first time period for the downlink wireless communication.

公开(公告)号：US11444733B2

公开(公告)日：2022-09-13

申请号：US16942223

申请日：2020-07-29

Applicant: QUALCOMM Incorporated

Inventor： Sharon Levy ,  Assaf Touboul ,  Guy Wolf ,  Igor Gutman

IPC: H04W4/00 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/08

Abstract: Methods, systems, and devices for wireless communications are described. Some systems may support digital post-distortion (DPoD) processing at a base station. In some such systems, a user equipment (UE) may process a data message for transmission, where a resulting signal associated with the data message includes non-linear characteristics that are handled by DPoD on the receiver-side. The non-linear characteristics may cause the signal to leak into out-of-band (OOB) resources, potentially resulting in interference. In some examples, the UE may transmit the data message to the base station in a multi-user system. To support mitigation of non-linear interference on signaling by other UEs, the UE may additionally transmit pilot signals in OOB resources (e.g., in addition to in-band resources) where the non-linearity may be expected to negatively affect other communications. The base station may use the OOB pilot signals to perform channel estimation and interference mitigation.

公开(公告)号：US11444672B2

公开(公告)日：2022-09-13

申请号：US17202922

申请日：2021-03-16

Applicant: QUALCOMM Incorporated

Inventor： Peer Berger ,  Shay Landis ,  Moshe Ben-Ari ,  Assaf Touboul ,  Amit Bar-Or Tillinger ,  Michael Levitsky ,  Cheol Hee Park ,  Haim Weissman ,  Jungsik Park ,  In Hyuck Yeo

IPC: H04B7/06 ,  H04L5/00

Abstract: Aspects relate to mechanisms for a wireless communication device to select between a cyclic delay diversity mode and an antenna switch diversity mode for transmission of a signal based on at least one parameter associated with communication over a wireless channel. The parameter(s) may include a channel estimation parameter associated with the wireless channel, a communication parameter associated with at least one communication on the wireless channel, or a combination thereof.

公开(公告)号：US20220287016A1

公开(公告)日：2022-09-08

申请号：US17194140

申请日：2021-03-05

Applicant: QUALCOMM Incorporated

Inventor： Shay Landis ,  Assaf Touboul ,  Gideon Kutz ,  Ran Berliner

IPC: H04W72/04 ,  H04L12/24 ,  H04L5/00

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support short control messaging using index modulation on DMRS. In a first aspect, a method of wireless communication includes a base station determining a configuration action for a served user equipment (UE) in communication with the base station. The base station may then generate a short control message associated with the configuration action and map that short control message onto a set of inactive subcarrier resource elements (REs) of a demodulation reference signal (DMRS) sequence. The served UE may then receive the transmitted DMRS sequence and determine the short control message within the set of inactive subcarrier REs of the DMRS sequence. Other aspects and features are also claimed and described.

公开(公告)号：US11431538B2

公开(公告)日：2022-08-30

申请号：US17146696

申请日：2021-01-12

Applicant: QUALCOMM Incorporated

Inventor： Ory Eger ,  Assaf Touboul ,  Noam Zach ,  Sharon Levy ,  Guy Wolf ,  Shay Landis ,  Ran Berliner ,  Gideon Kutz

IPC: H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. In one example, a receiving device (e.g., a UE) may transmit, to a transmitting device (e.g., a base station), a capability indicator indicating a capability of the receiving device to perform peak reconstruction using soft metrics (e.g., expected value, covariance) on symbol decisions. The receiving device may receive, from the transmitting device and based on the capability indicator, control signaling indicating a clipping level applied to generate a signal and a subset of peaks clipped from the signal. The receiving device may receive the signal generated in accordance with the control signaling from the transmitting device and may decode a reconstructed signal based on performing the peak reconstruction on the signal using the soft metrics on symbol decisions, the clipping level, and the subset of the peaks clipped from the signal.

公开(公告)号：US20220272527A1

公开(公告)日：2022-08-25

申请号：US17180596

申请日：2021-02-19

Applicant: QUALCOMM Incorporated

Inventor： Noam Zach ,  Guy Wolf ,  Sharon Levy ,  Ory Eger ,  Ori Ben Shahar ,  Lior Uziel ,  Assaf Touboul

IPC: H04W12/037 ,  H04W12/041 ,  H04W12/63 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may communicate, with a second wireless device, a first set of messages of a first message type that are acknowledged according to an acknowledgement procedure. The first wireless device, the second wireless device, or both may select a first subset of messages of the first plurality of messages and a first subset of bits from each message of the first subset of messages based on the first set of messages being acknowledged and according to a sampling configuration common to both the first wireless device and the second wireless device. The first wireless device, the second wireless device, or both may generate a key using bit values of the first subset of bits from each message of the first subset of messages, encoding a message using the key, and communicate the encoded message.

公开(公告)号：US20220255778A1

公开(公告)日：2022-08-11

申请号：US17169280

申请日：2021-02-05

Applicant: QUALCOMM Incorporated

Inventor： Daniel Paz ,  Michael Levitsky ,  Assaf Touboul ,  Shay Landis ,  Amit Bar-Or Tillinger ,  Ronen Shaked

IPC: H04L25/49 ,  H04W72/04 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit signaling that configures a wireless device to use a multi-level coding (MLC) procedure to communicate with a base station. Based on receiving the signaling, the wireless device may select a channel quality indicator (CQI) index from a set of CQI indices that are associated with an MLC procedure. In some examples, the wireless device selects the CQI index from a set of CQI indices that includes both bit-interleaved coded modulation (BICM)-based and MLC-based CQI indices. In other examples, the wireless device selects the CQI index from a set of CQI indices that includes solely MLC-based CQI indices. The wireless device may transmit the selected CQI index to the base station. And the base station may select a modulation and coding scheme for subsequent transmissions to the wireless device based on the received CQI index.

公开(公告)号：US20220190900A1

公开(公告)日：2022-06-16

申请号：US17118490

申请日：2020-12-10

Applicant: QUALCOMM Incorporated

Inventor： Ran Berliner ,  Shay Landis ,  Yehonatan Dallal ,  Assaf Touboul

IPC: H04B7/06 ,  H04W76/19 ,  H04W72/04 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications networks may support carrier aggregation such that a user equipment (UE) may operate on both a primary cell using a first frequency range and a secondary cell using a second frequency range. In some cases, a beam failure associated with one or more beams of the secondary cell may be identified by the UE, and a beam failure recovery procedure may be triggered. The UE may send a beam failure recovery request message in an uplink data field of a physical uplink control channel (PUCCH) message to a base station of the primary cell. In response to the beam failure recovery request message, the base station of the primary cell may transmit a response to the UE which includes beam failure mitigation information.

公开(公告)号：US20220141889A1

公开(公告)日：2022-05-05

申请号：US17085759

申请日：2020-10-30

Applicant: QUALCOMM Incorporated

Inventor： Shay Landis ,  Assaf Touboul ,  Ran Berliner ,  Amit Bar-Or Tillinger

IPC: H04W76/10 ,  H04L27/26 ,  H04W72/04 ,  H04W24/08 ,  H04L5/00 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described for reducing overhead associated with a cyclic prefix (CP) by supporting dynamic determination of a CP length. For example, a user equipment (UE) may establish a wireless connection with a base station by receiving initial communications according to a numerology and a first CP configuration associated with a first CP length. The UE may determine a second CP length after establishing the wireless connection and may transmit an indication to the base station, indicating the second CP length. The base station may receive the indication and may transmit downlink signals according to a second CP configuration associated with the second CP length. The initial communications and the downlink signals may be associated with a same numerology or subcarrier spacing.

公开(公告)号：US11310021B2

公开(公告)日：2022-04-19

申请号：US16876575

申请日：2020-05-18

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Assaf Touboul ,  Ran Berliner ,  Shay Landis ,  Lior Uziel

IPC: H04L5/10 ,  H04L5/00 ,  H04B7/01 ,  H04B17/336 ,  H04L25/02 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit repetitions of a tracking reference signal to a user equipment (UE). The UE may determine a Doppler frequency for the downlink channel by measuring the repetitions of the tracking reference signal. The UE may transmit an indication of the downlink Doppler frequency to the base station. The base station may determine the uplink Doppler frequency based on the downlink Doppler frequency. The base station may use the uplink Doppler frequency to select an uplink demodulation reference signal (DMRS) configuration for the UE.