公开(公告)号：US20220095324A1

公开(公告)日：2022-03-24

申请号：US17447563

申请日：2021-09-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04L5/00

Abstract: Aspects are provided which allow for multiplexing of higher priority uplink transmissions with lower priority uplink transmissions while maintaining URLLC of the higher priority uplink transmission. A UE receives from a base station information including resources for first and second uplink data, where at least a portion of the resources for the first and second uplink data overlap in time. The first and second uplink data are associated with different priority levels. The UE determines whether to multiplex the uplink data based on a transmission timing difference between a scheduled transmission time and a multiplexed transmission time for the second uplink data on the respective resources. The base station makes a similar determination. If the transmission timing difference fails to meet a delay threshold, multiplexing is performed; otherwise, the lower priority transmission is dropped. Thus, different priority multiplexing may occur in low latency situations, satisfying URLLC.

公开(公告)号：US11234252B2

公开(公告)日：2022-01-25

申请号：US16552810

申请日：2019-08-27

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang

IPC: H04L25/02 ,  H04L5/00 ,  H04L1/00 ,  H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for configuring group indices for uplink transmissions from a user equipment (UE) such that the UE may be able to determine whether to combine uplink transmissions scheduled on overlapping time resources. Specifically, the UE may combine uplink transmissions associated with a same group index for transmission in a single channel, and the UE may avoid combining uplink transmissions associated with different group indices. In some cases, the indication of a group index associated with an uplink transmission from a UE may be explicit (e.g., provided in a downlink control information (DCI) message), and, in other cases, the indication of a group index associated with an uplink transmission from a UE may be implicit (e.g., corresponding to a resource allocated for the uplink transmission).

公开(公告)号：US11233685B2

公开(公告)日：2022-01-25

申请号：US16243722

申请日：2019-01-09

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Xiao Feng Wang ,  Seyong Park ,  Peter Gaal

IPC: H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: The present disclosure relates generally to wireless communication systems, and more particularly, to a design for generating and utilizing orthogonal cover code (OCC) sequences for physical uplink control channel (PUCCH) transmissions. An exemplary method includes a user equipment (UE) selecting an orthogonal cover code (OCC) sequence for an uplink transmission, wherein the OCC sequence is selected from a first set of OCC sequences designed to achieve target peak to average power ratios (PAPRs) for a plurality of different modulation schemes; and transmitting the uplink transmission, via a wireless medium, with one of the modulation schemes using the selected OCC sequence.

公开(公告)号：US11218993B2

公开(公告)日：2022-01-04

申请号：US16453851

申请日：2019-06-26

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Linhai He ,  Wanshi Chen ,  Wei Yang ,  Peter Gaal

IPC: H04W72/02 ,  H04L5/00 ,  H04W72/12 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for service request (SR) prioritization for intra-UE (user equipment) ultra-reliable low-latency communication (URLLC) service and enhanced mobile broadband (eMBB) service multiplexing. Aspects provide a method for wireless communications by a UE. The method includes determining one or more transmission resources for one or more service requests (SRs) for a first type of service and/or a second type of service. The method includes determining one or more priority levels associated with the one or more transmission resources. The method includes transmitting the one or more SRs using the determined one or more transmission resources based on the associated priority levels.

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：US20210360670A1

公开(公告)日：2021-11-18

申请号：US17315744

申请日：2021-05-10

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Muhammad Sayed Khairy Abdelghaffar ,  Ahmed Attia Abotabl ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04W72/12 ,  H04L5/14 ,  H04W72/04 ,  H04W8/24

Abstract: Methods, systems, and devices for wireless communications are described. A base station of a wireless communications system may transmit, to a user equipment (UE), a configuration message that indicates a transmission time interval (TTI) format for a plurality of TTIs. At least one format for the plurality of TTIs includes uplink resources and downlink resources separated in the frequency domain, which may be an example of a subband full duplex (SBFD) slot. Since the pattern may include some transitions between uplink and downlink resources, one or more gap periods (e.g., time gaps) may be positioned between such resources.

公开(公告)号：US20210360634A1

公开(公告)日：2021-11-18

申请号：US17314591

申请日：2021-05-07

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Jing Lei ,  Wanshi Chen ,  Hwan Joon Kwon

IPC: H04W72/04 ,  H04W8/24 ,  H04W72/10 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine whether to perform a simplified uplink control information (UCI) multiplexing procedure or select an overlapping uplink channel having the highest priority and drop the remaining overlapping uplink channels. The UE may determine that a first symbol period of the physical uplink scheduled channel (PUSCH) is aligned with a first symbol period of the physical uplink control channel (PUCCH) and the UE may multiplex UCI with an uplink data transmission. The UE may transmit the multiplexed UCI and uplink data on the PUSCH and drop the PUCCH. The UE may perform UCI multiplexing for overlapping PUCCH and PUSCH, located on the same component carrier (CC). The UE may refrain from performing UCI multiplexing if the PUSCH and the PUCCH are located on different CCs, and may simultaneously transmit UCI and uplink data over the different CCs.

公开(公告)号：US11177903B2

公开(公告)日：2021-11-16

申请号：US16168453

申请日：2018-10-23

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Yi Huang ,  Heechoon Lee

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L1/18

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a modulation and coding scheme (MCS) for an uplink communication of the UE; identify a set of beta values for uplink control information of the uplink communication according to a mapping between the set of beta values and the MCS, wherein the set of beta values is for determination of a number of resource elements or modulation symbols for the uplink control information; and transmit the uplink control information based at least in part on the set of beta values. Numerous other aspects are provided.

公开(公告)号：US20210351821A1

公开(公告)日：2021-11-11

申请号：US17313918

申请日：2021-05-06

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Elshafie ,  Mahdi Zamani ,  Yi Huang ,  Peter Gaal ,  Hwan Joon Kwon

IPC: H04B7/0456 ,  H04L1/00 ,  H04L12/26 ,  H04B17/336

Abstract: Methods, systems, and devices for wireless communications are described. A method of wireless communication at a user equipment (UE) is described that may include receiving a data packet transmission over a wireless channel from a base station. The method may further include determining a set of intrinsic log likelihood ratios (LLRs) based at least in part on the data packet transmission and determining an accumulated capacity for the wireless channel based at least in part on the set of intrinsic LLRs. The method may also include determining a channel quality indicator index or a transmission rank for the wireless channel based at least in part on the accumulated capacity and transmitting a feedback message that indicates the channel quality indicator index or the transmission rank for the wireless channel to the base station.

公开(公告)号：US20210345388A1

公开(公告)日：2021-11-04

申请号：US17241849

申请日：2021-04-27

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Jing Lei ,  Huilin Xu ,  Hwan Joon Kwon ,  Wanshi Chen

IPC: H04W72/12 ,  H04L1/18 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may receive a downlink control message from a base station scheduling multiple downlink messages and indicating a first offset for communicating a first feedback message of multiple feedback messages including feedback information for the multiple downlink messages. The UE may additionally receive, from the base station, a second offset for communicating the remaining feedback messages of the multiple feedback messages after communicating the first feedback message. The UE may transmit the first feedback message a quantity of resources equal to the first offset after receiving a first downlink message. The UE may then transmit the remaining feedback messages a quantity of resources equal to the second offset after transmitting the first feedback message. Each of the feedback messages may include feedback information for one downlink message.