公开(公告)号：US20210410120A1

公开(公告)日：2021-12-30

申请号：US17192782

申请日：2021-03-04

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Alberto Rico Alvarino ,  Peter Gaal ,  Huilin Xu ,  Wanshi Chen ,  Tao Luo ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W72/04 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may connect with a base station over a set of component carriers according to a carrier aggregation configuration. The UE may then monitor a search space configured for scheduling multiple component carriers and may receive downlink control information (DCI) based on monitoring the search space. The DCI may include a carrier indicator field (CIF) and may schedule a set of data transmissions over two or more component carriers (e.g., from the set of component carriers). The UE may determine that the two or more component carriers include the first component carrier and the second component carrier based on the monitored search space, the CIF within the DCI, or both. The UE may then transmit and receive the set of data transmissions over the first and second component carriers.

公开(公告)号：US20210410119A1

公开(公告)日：2021-12-30

申请号：US17192719

申请日：2021-03-04

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Alberto Rico Alvarino ,  Peter Gaal ,  Huilin Xu ,  Wanshi Chen ,  Tao Luo ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station over a set of component carriers according to a carrier aggregation configuration. In some cases, the UE may receive an indication of one or more groups of units, where each group may include one or more component carriers and/or one or more time intervals of each component carrier. The UE may receive downlink control information (DCI) including one or more fields that are common to a group of units that may schedule a set of data transmissions over the one or more groups of units such that the single DCI may schedule multiple component carriers (e.g., two or more) over one or more time intervals. The UE may transmit or receive the set of data transmissions (e.g., uplink or downlink data transmissions) over the scheduled units based on receiving the DCI.

公开(公告)号：US20210410118A1

公开(公告)日：2021-12-30

申请号：US16915399

申请日：2020-06-29

Applicant: QUALCOMM Incorporated

Inventor： Mehmet Izzet Gurelli ,  Qiang Wu ,  Iyab Issam Sakhnini ,  Jun Ma ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Tao Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Juan Montojo

IPC: H04W72/04

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method of wireless communication performed by a user equipment (UE) includes receiving, from a base station, a scheduling downlink control information (DCI) message in a physical downlink control channel (PDCCH). The scheduling DCI message indicates a resource allocation for a scheduled DCI message in a subsequent physical downlink shared channel (PDSCH). The method further includes receiving, from the base station, the scheduled DCI message within the subsequent PDSCH. Other aspects and features are also claimed and described.

公开(公告)号：US11212796B2

公开(公告)日：2021-12-28

申请号：US16796305

申请日：2020-02-20

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Peter Gaal ,  Juan Montojo ,  Tao Luo ,  Wanshi Chen

IPC: H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H04W68/00 ,  H04W74/00 ,  H04L5/00 ,  H04W28/02 ,  H04W72/12 ,  H04W72/14 ,  H04W16/14 ,  H04W52/02 ,  H04W52/14 ,  H04W52/36 ,  H04W56/00 ,  H04W74/08

Abstract: Techniques are described for wireless communication. One method includes detecting a first reference signal received from a user equipment (UE) in a reference scheduled transmission burst including a plurality of contiguous transmission time intervals (TTIs) received over a shared radio frequency spectrum band; identifying a reference TTI in which the first reference signal is received; determining a contention window size usable by the UE to contend for access to the shared radio frequency spectrum band; and transmitting an indication of the determined contention window size to the UE.

公开(公告)号：US11212151B2

公开(公告)日：2021-12-28

申请号：US16107783

申请日：2018-08-21

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Yi Huang ,  Renqiu Wang ,  Sony Akkarakaran ,  Peter Gaal ,  Tao Luo

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

Abstract: Methods, systems, and devices for wireless communications are described. Pre-discrete Fourier transform (DFT) time-domain spreading codes may be applied for UE multiplexing for uplink control information (e.g., over shared resources of an uplink slot). For example, a moderate number of UEs may be multiplexed within the same slot by having each UE spread modulation symbols before DFT-spreading by different spreading code. For orthogonality across UEs, the pre-DFT spreading codes may be selected as orthogonal cover codes (OCCs). The spreading sequences can be generated from a set of any orthogonal sequences or generated from unitary matrices. In some cases, orthogonality in the time domain may be kept as well as a frequency division multiplexed (FDM) structure in the frequency domain. For such property, a Fourier basis OCC design may be used. In some other examples, a Hadamard matrix based OCC design may be used.

公开(公告)号：US20210399833A1

公开(公告)日：2021-12-23

申请号：US17342023

申请日：2021-06-08

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Le Liu ,  Kazuki Takeda ,  Peter Gaal ,  Tao Luo ,  Wanshi Chen ,  Xiaoxia Zhang ,  Juan Montojo ,  Umesh Phuyal ,  Prasad Reddy Kadiri

IPC: H04L1/16 ,  H04W4/06 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently facilitating acknowledgment (ACK) or negative acknowledgment (NACK) feedback from a user equipment (UE) for a set of transport blocks in one or more multicast transmissions from a base station. The UE may determine control channel resources for transmitting the ACK/NACK feedback, and each respective control channel resource may correspond to a distinct subset of the set of transport blocks. Once the UE determines a subset of transport blocks that the UE failed to decode (such as at least one transport block), the UE may determine a respective control channel resource that corresponds to the at least one transport block that the UE failed to decode. The UE may transmit ACK/NACK feedback on the respective control channel resource, which, in some examples, may indicate that the UE failed to decode the subset of transport blocks.

公开(公告)号：US11196512B2

公开(公告)日：2021-12-07

申请号：US16454979

申请日：2019-06-27

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Joseph Binamira Soriaga ,  Peter Gaal ,  Hari Sankar ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to decode or refrain from decoding a transport block (TB) transmitted from a base station based on a decodability condition. The decodability condition may include whether an effective UE throughput for decoding the TB is greater than a predetermined decoding throughput threshold or not. If the effective UE throughput is greater than the predetermined decoding throughput threshold, the UE may refrain from decoding the TB. In some cases, the TB may be a subsequent transmission from the base station based on an initial transmission not being correctly decoded, and the UE may refrain from decoding the subsequent transmission.

公开(公告)号：US11191083B2

公开(公告)日：2021-11-30

申请号：US16576361

申请日：2019-09-19

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Peter Gaal ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W72/08 ,  H04W72/12 ,  H04W76/11 ,  H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for interference randomization for multiple transmission configuration indicator (multi-TCI) state communications with disjoint resource sets for certain systems, such a new radio (NR). A method for wireless communication by a user equipment (UE) is provided. The method generally includes determining a disjoint resource split of a set of resource blocks (RBs) for a multi-TCI state transmission, the determination based on a pseudo-random sequence. The UE decodes the multi-TCI state transmission based on the determination. A base station (BS) also determines the disjoint resource split based on the pseudo-random sequence and transmit the multi-TCI state transmission to a UE on a subset of the RBs based on the determination.

公开(公告)号：US11184923B2

公开(公告)日：2021-11-23

申请号：US16406563

申请日：2019-05-08

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Wanshi Chen ,  Jing Sun ,  Peter Gaal

IPC: H04W74/08 ,  H04W76/28 ,  H04W16/14 ,  H04W28/02 ,  H04W72/02

Abstract: Various aspects described herein relate to reducing transmission latency in unlicensed spectrum. These latency reduction techniques include enabling ultra low latency (ULL) traffic to gain fast channel access. These latency reduction techniques further include updating a size of a contention window for channel access. In addition, these latency reduction techniques include enhancing CPDCCH-based signaling to accommodate the ULL frame structure. Further, these latency reduction techniques include providing robust operation against bursty interference for ULL transmissions. Moreover, these techniques include managing DRX for ULL. Additionally, these latency reduction techniques include joint scheduling of different TTI durations. These latency reduction techniques further include updating SRS transmission opportunities. In addition, these latency reduction techniques include reducing latency associated with PRACH transmissions. Further, these latency reduction techniques include reducing ULL transmission delays by either ignoring or cancelling scheduled uplink (e.g., LTE) transmissions.

公开(公告)号：US20210360669A1

公开(公告)日：2021-11-18

申请号：US17315525

申请日：2021-05-10

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Tao Luo ,  Peter Gaal ,  Juan Montojo ,  Jing Sun ,  Iyab Issam Sakhnini

IPC: H04W72/12 ,  H04W72/04

Abstract: Techniques for alternative semi-persistent scheduling (SPS) parameter implementation in association with preemption of use of resources corresponding to other SPS parameters are described. Wireless devices may be implicitly informed with respect to implementing alternative resources corresponding to one or more alternative SPS parameters when use of resources corresponding to first SPS parameters is preempted. A disruption indication (DI), such as used to indicate preemption of downlink transmission on downlink SPS allocated resources and/or a cancellation indication of uplink transmission on uplink SPS allocated resources, may be used to inform (e.g., implicitly) one or more wireless devices to employ alternative resources corresponding to alternative SPS parameters available to the wireless devices. Other aspects and features are also claimed and described.