公开(公告)号：US20220132547A1

公开(公告)日：2022-04-28

申请号：US17451745

申请日：2021-10-21

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Peter Gaal ,  Huilin Xu ,  Jun Ma ,  Bharat Shrestha ,  Umesh Phuyal

IPC: H04W72/12 ,  H04L1/16 ,  H04L5/00 ,  H04L1/18

Abstract: Certain aspects of the present disclosure are directed to techniques for hybrid automatic repeat request (HARQ) codebook design. For example, a user equipment (UE) configured for feedback processing may comprise a memory and a processor configured to receive, from a base station (BS), a first indication of a first feedback process type for providing feedback to the BS for a plurality of feedback processes of the UE. The memory and the processor may also be configured to receive one or more first downlink transmissions from the BS associated with at least one feedback process of the plurality of feedback processes. The memory and the processor may also be configured to transmit feedback or withhold transmission of feedback to the BS regarding decoding of the one or more first downlink transmissions according to the first feedback process type.

公开(公告)号：US11303492B2

公开(公告)日：2022-04-12

申请号：US16326355

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Wanshi Chen ,  Peter Gaal

IPC: H04L27/26 ,  H04L1/08 ,  H04L5/00

Abstract: Comb adaptation for interlaced frequency division multiplex (IFDM) demodulation reference signals (DMRS) is discussed. Transmission configuration for DMRS may be assigned to UEs with a coded combination of cyclic shift, OCC, and comb value. Some assigned combinations provide for a different comb value to be used for the different slots in the same subframe. Further aspects provide additional interference randomization through comb shifting, using inter-subframe hopping functions. Additionally, where retransmissions are present without uplink grant, the UE may select comb values for retransmissions based on the counter number for the retransmissions, which are different than the comb values used for the original DMRS transmissions.

公开(公告)号：US20220110149A1

公开(公告)日：2022-04-07

申请号：US17458056

申请日：2021-08-26

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Alberto Rico Alvarino ,  Peter Gaal ,  Wanshi Chen ,  Tao Luo ,  Jing Sun ,  Juan Montojo ,  Mostafa Khoshnevisan

IPC: H04W72/12 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described. In some implementations, a method for wireless communication at a user equipment (UE) is described that includes identifying that the UE is in carrier aggregation communication with a primary and secondary cell. The method may also include monitoring, during one or more time intervals, UE-specific search spaces of the secondary cell for control information scheduling data communications on the primary cell. The method may include switching, during one or more different time intervals, to monitoring UE-specific search spaces of the primary cell. Another method describes wireless communication at a base station that may configure a UE to communicate via carrier aggregation, transmit control information via the secondary cell to the UE during downlink TTIs, and transmit control information via the primary cell to the UE during uplink TTIs.

公开(公告)号：US11297621B2

公开(公告)日：2022-04-05

申请号：US16670932

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Peter Gaal

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/10 ,  H04W76/27 ,  H04W80/02

Abstract: Various examples herein may be used to select scrambling sequences that avoid repetitive sequences that cause high PAPR. In one example, a UE or BS may be configured with a first selected scrambling selection value and a second selected scrambling selection value and perform a DPS between the first selected scrambling selection value and the second selected scrambling selection value based on a DCI bit. In another example, a UE or BS may be configured with a third scrambling selection value and perform the DPS for the third selected scrambling selection value based on the first selected scrambling selection value. In still another example, a UE or BS may be configured with a first selected scrambling selection value, a second selected scrambling selection value, and a third selected scrambling selection value that are one of a first value, a second value, or a third value.

公开(公告)号：US11296827B2

公开(公告)日：2022-04-05

申请号：US16523911

申请日：2019-07-26

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Peter Gaal ,  Wanshi Chen ,  Joseph Binamira Soriaga ,  Gokul Sridharan

IPC: G08C25/02 ,  H04L1/18 ,  H04W76/27 ,  H04L1/00 ,  H04L1/16

Abstract: Certain aspects of the present disclosure provide techniques for wireless communication. The techniques include a method wireless communication by a user equipment including receiving a configuration message, wherein the configuration message in part configures the UE to communicate coordinated transmissions with a plurality of transmission reception points using a coordinated transmission mode. The method further includes, receiving one or more physical downlink shared channel transmissions from a plurality of transmission reception points in accordance with the coordinated transmission mode. The method further includes, selecting a HARQ-ACK feedback mode based in part on the coordinated transmission mode. The method further includes, transmitting HARQ-ACK feedback to at least one of the plurality of transmission reception points using the selected HARQ-ACK feedback mode.

公开(公告)号：US11290987B2

公开(公告)日：2022-03-29

申请号：US16052968

申请日：2018-08-02

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Heechoon Lee ,  Peter Gaal

IPC: H04J3/00 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communication are described. A base station and user equipment (UE) may utilize different slot structures for communications depending on the type of data to be transmitted. A base station may configure the slot structures based on a capability of a UE or operation conditions. The base station may identify a slot structure for a first slot, which may be group-specific or UE-specific, and determine a slot structure for a subsequent slot, which may be UE-specific or based on the slot structure of the first slot. A set of slot structure combinations may be identified to be used by a UE for combining the first and subsequent slots, and one combination may be selected based on a capability of the UE, an operation to be performed by the UE, an operational condition associated with the UE, or a combination thereof.

公开(公告)号：US11290896B2

公开(公告)日：2022-03-29

申请号：US13801358

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Yongbin Wei ,  Peter Gaal ,  Hao Xu ,  Tao Luo ,  Tingfang Ji

IPC: H04W76/27 ,  H04W24/02 ,  H04W52/02 ,  H04W88/08 ,  H04W24/08 ,  H04W36/00 ,  H04W48/08

Abstract: Systems and methods providing an enhanced new carrier type (eNCT) operable to adapt cells of a wireless communication network for opportunistic behavior that adapts to the geo-temporal traffic distribution are disclosed. Embodiments of eNCT operation provide for transmission of downlink common channels by cells employing eNCT techniques only when needed. Base stations implementing eNCT techniques herein may transition between two or more operational states, such as an active state wherein full base station functionality is performed and a dormant state wherein limited base station functionality is performed, based upon geo-temporal traffic distribution within the network. Thus, when a base station is not actively serving a user equipment (UE), the downlink transmission by the base station, and resulting interference, may be reduced or even eliminated.

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：US20220078710A1

公开(公告)日：2022-03-10

申请号：US17400547

申请日：2021-08-12

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Peter Gaal ,  Peter Pui Lok Ang ,  Alexei Yurievitch Gorokhov ,  Le Liu ,  Wooseok Nam ,  Heechoon Lee ,  Hari Sankar ,  Changhwan Park ,  Yuchul Kim

IPC: H04W52/02 ,  H04W68/00 ,  H04L5/00 ,  H04W72/14

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to reference signal (RS) designs that allow for tracking loop updates and paging of UEs using various RSs. One example method includes identifying reference signal (RS) monitoring occasions for a user equipment (UE) in an idle or inactive mode; and transmitting, to the UE, reference signals in the identified RS monitoring occasions, the RS monitoring occasions being associated with RS for tracking purposes and RS for an indication the UE is to wake up to process additional signaling.

公开(公告)号：US11271701B2

公开(公告)日：2022-03-08

申请号：US16216850

申请日：2018-12-11

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Wanshi Chen ,  Peter Gaal ,  Jing Sun ,  Joseph Binamira Soriaga

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04W72/08

Abstract: Wireless communications systems and methods related to downlink (DL) control channel communications are provided. A wireless communication device identifies a search space set including a plurality of PDCCH candidate search spaces for a downlink control channel. The wireless communication device determines that a first resource associated with a first PDCCH candidate search space of the plurality of PDCCH candidate search spaces overlaps with a preconfigured resource. The wireless communication device monitors for a downlink control message over the downlink control channel by excluding monitoring in at least the first PDCCH candidate search space based on the determining.