公开(公告)号：US20200037328A1

公开(公告)日：2020-01-30

申请号：US16523103

申请日：2019-07-26

Applicant: QUALCOMM Incorporated

Inventor： Gokul Sridharan ,  Jay Kumar Sundararajan ,  Yi Huang ,  Wei Yang ,  Joseph Binamira Soriaga ,  Tingfang Ji

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

Abstract: Techniques are described herein for allocating transmit power between precoding resource groups (PRGs) and/or transmit chains of a user equipment (UE) to reduce the amount of total transmit power that is unused. The UE may determine a set of precoding scaling factors for each PRG to efficiently allocate a total transmit power between the PRGs using a two-stage approach. During a first stage, the UE may determine PRG-specific precoding scaling factors for each PRG associated with an uplink transmission. During a second stage, the UE may determine a residual precoding scaling factor to apply to all the PRGs associated with the uplink transmission and determine overall precoding scaling factors for each PRG. The second stage may be configured to refine the scaling factors determined in the first stage such that at least some of the unused transmit power is allocated to at least one of the PRGs or transmit chains.

公开(公告)号：US20200015250A1

公开(公告)日：2020-01-09

申请号：US16460064

申请日：2019-07-02

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Joseph Binamira Soriaga ,  Gokul Sridharan ,  Jay Kumar Sundararajan

IPC: H04W72/12 ,  H04W72/14 ,  H04W24/08 ,  H04W72/04 ,  H04W76/11 ,  H04W52/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment (UE), may receive, via a first control resource set (CORESET) of a plurality of CORESETs monitored by the UE, a first downlink grant that schedules a downlink data transmission to the UE. The UE may receive the downlink data transmission from a first transmission reception point (TRP) of a plurality of TRPs and transmit feedback information for the downlink data transmission to the first TRP based at least in part on the first TRP being associated with the first CORESET or the first downlink grant being received via the first CORESET.

公开(公告)号：US20200007294A1

公开(公告)日：2020-01-02

申请号：US16451827

申请日：2019-06-25

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Alexandros Manolakos ,  Jing Jiang ,  Yi Huang

IPC: H04L5/00 ,  H04W52/14

Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure a user equipment (UE) with quasi co-located (QCL) associations between a physical uplink control channel and a sounding reference signal (SRS) transmission for at least one time and frequency domain channel parameter. The UE may transmit, in accordance with the QCL association, a control channel transmission via the physical uplink control channel using an antenna port that is quasi co-located with at least one antenna port for transmitting the SRS transmission and transmit, in accordance with the QCL association, the SRS transmission via the at least one antenna port. In another example, the base station may configure the UE with an antenna port association between an SRS transmission and a physical uplink control channel. The UE may transmit the SRS transmission and a control channel transmission in accordance with the antenna port association.

公开(公告)号：US20190393931A1

公开(公告)日：2019-12-26

申请号：US16449246

申请日：2019-06-21

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Gokul Sridharan ,  Wei Yang ,  Taesang Yoo ,  Peter Gaal

IPC: H04B7/0456 ,  H04W52/08 ,  H04B7/0491 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) having partially coherent antennas may be configured for simultaneous transmissions on groups of antennas (e.g., multiple pairs of antennas). To achieve the benefits of simultaneous transmissions using groups of antenna that are partially coherent, without having the transmissions affect each other (e.g., interference), the UE may apply a hybrid closed-loop multiple-input multiple-output (MIMO) scheme among each antenna in the antenna groups where phase coherence can be maintained. Following the hybrid closed-loop MIMO scheme, the UE may apply a transparent diversity scheme across each antenna of the groups. Alternatively, the UE may first apply the transparent diversity scheme and next apply the hybrid closed-loop MIMO scheme. By applying a hybrid closed-loop MIMO scheme, as well as a transparent diversity scheme, the UE may fully realize its resources and contribute to an improved spatial diversity for a MIMO system.

公开(公告)号：US20190230655A1

公开(公告)日：2019-07-25

申请号：US16252939

申请日：2019-01-21

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Sanghoon Kim ,  Amir Aminzadeh Gohari ,  Peter Gaal ,  Wanshi Chen ,  Tingfang Ji ,  Sony Akkarakaran ,  Wei Yang

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/28

Abstract: A wireless device may identify a set of resources reserved for feedback information (e.g., resource elements (REs) reserved for feedback such as acknowledgement (ACK) or negative ACK (NACK) information) within a transmission time interval (TTI). Feedback information may be mapped to the reserved set of resources (e.g., reserved REs). The wireless device may determine a set of unused reserved resources (e.g., a set of unused reserved REs) based on the number of feedback bits. The wireless device may then map other bits (e.g., zeros, known bits, pattern or sequence of bits, random bits, etc.) to the set of unused reserved REs, or boost transmission power of bits mapped around the unused reserved REs. In some cases, the number of reserved REs may be determined based on the number of feedback bits (e.g., the size of the ACK/NACK payload). The wireless device may then transmit the information to a base station.

公开(公告)号：US20190223207A1

公开(公告)日：2019-07-18

申请号：US16243958

申请日：2019-01-09

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Peter Gaal ,  Peter Pui Lok Ang

IPC: H04W72/12 ,  H04W72/14

CPC classification number: H04W72/1289 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/1278 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink control message from a base station. The downlink control message may include a grant for communication with the base station and an indication of a component carrier (CC) to use for transmission of uplink control information (UCI). The UE may determine a CC for UCI transmission based at least in part on the CC indication, and the UE may transmit an uplink message including the UCI via the determined CC.

公开(公告)号：US20190207723A1

公开(公告)日：2019-07-04

申请号：US16238268

申请日：2019-01-02

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Renqiu Wang ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Naga Bhushan ,  Yi Huang ,  Ying Wang

IPC: H04L5/00 ,  H04L27/06 ,  H04J13/00 ,  H04W76/28 ,  H04W76/27 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described that provide a number of groups of transmitters, each group of transmitters having at least one user equipment (UE), and each group of transmitters having an associated transmission opportunity (TXO) for transmission of a reference signal. A number of UEs may transmit transmissions to a base station according to non-orthogonal multiple access (NOMA) techniques in which two or more UEs concurrently transmit to the base station. Depending upon a number of UEs, a number of groups of transmitters, an overloading factor of NOMA transmissions, a system bandwidth, a time span of the reference signal TXO, or any combination thereof, a binary or non-binary orthogonal cover code (OCC) may be applied to transmitted reference signals, which the base station may use to identify reference signals from particular UEs.

公开(公告)号：US20190159206A1

公开(公告)日：2019-05-23

申请号：US16190762

申请日：2018-11-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Peter Pui Lok Ang ,  Yang Yang ,  Yi Huang ,  Joseph Binamira Soriaga ,  Peter Gaal

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L1/1664 ,  H04L1/1861 ,  H04L1/1896 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0094 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/048 ,  H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an uplink grant that includes multiple total downlink assignment indexes (DAIs) corresponding to multiple DAI groups associated with the UE, wherein each of the multiple DAI groups is associated with a different set of component carriers used by the UE for carrier aggregation; and transmit (ACK/NACK) feedback for the multiple DAI groups based at least in part on the multiple total DAIs included in the uplink grant. In some aspects, a base station may determine multiple total DAIs corresponding to multiple DAI groups associated with a UE, wherein each of the multiple DAI groups is associated with a different set of component carriers used by the UE for carrier aggregation; and transmit the multiple total DAIs to the UE in an uplink grant. Numerous other aspects are provided.

公开(公告)号：US20190069321A1

公开(公告)日：2019-02-28

申请号：US16105813

申请日：2018-08-20

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Peter Gaal ,  Tao Luo ,  Yi Huang

IPC: H04W72/14 ,  H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described that support control and data multiplexing in uplink wireless transmissions. Described techniques provide for efficient communication of uplink control information (UCI) through rate-matching uplink data around uplink control information in uplink transmissions, including information on amounts or types of UCI to be transmitted by a UE, indications in downlink transmissions of allocated UCI resources and whether associated UCI is to be included in allocated UCI resources, formatting and multiplexing of multiple wireless services at the UE, or any combination thereof.

公开(公告)号：US20190045498A1

公开(公告)日：2019-02-07

申请号：US16045535

申请日：2018-07-25

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Juan Montojo ,  Peter Gaal ,  Tao Luo ,  Renqiu Wang ,  Seyong Park

IPC: H04W72/04 ,  H04W72/08

Abstract: Methods, systems, and devices are described for wireless communications. A wireless device may receive an allocation of uplink resources for an uplink transmission of uplink control information (UCI) during a long physical uplink control channel (PUCCH), which may range from four to fourteen symbol periods in length. The wireless device may identify a frequency hopping location based on the length of the PUCCH and a number of bits used to represent the UCI. In some cases, the frequency hopping location partitions the long PUCCH into a first set of symbol periods and a second set of symbol periods. After identifying the frequency hopping location, the wireless device may transmit a UCI message, which may include information and reference symbols, over a first frequency bandwidth during the first set of symbol periods and over a second frequency bandwidth during the second set of symbol periods.