公开(公告)号：US11470651B2

公开(公告)日：2022-10-11

申请号：US17075653

申请日：2020-10-20

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Hung Dinh Ly ,  Yi Huang ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Amir Aminzadeh Gohari ,  Wanshi Chen ,  Linhai He ,  Tingfang Ji

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: A user equipment (UE) may be configured to receive configuration information from a base station, and the configuration information may indicate at least two different random access channel (RACH) request configuration parameters that each is associated with a respective radio resource control (RRC) state. The UE may be further configured to generate a first message associated with a two-step RACH procedure including a preamble and a payload, the payload including data on an uplink data channel and at least one reference signal. The UE may be further configured to transmit the first message to the base station using at least one of the at least two different RACH request configuration parameters that corresponds to an RRC state of the UE. The preamble may be transmitted on a first set of resources associated with a RACH occasion, and the payload may be transmitted on a second set of resources.

公开(公告)号：US20220322309A1

公开(公告)日：2022-10-06

申请号：US17220764

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Kazuki Takeda ,  Alberto Rico Alvarino ,  Mostafa Khoshnevisan ,  Peter Gaal ,  Wanshi Chen ,  Ayan Sengupta

IPC: H04W72/04 ,  H04W72/10

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive one or more retransmissions of an initial group-common transmission. The UE may receive, in accordance with a first SPS configuration, a group-common transmission of a group-common downlink shared channel, the group-common transmission being associated with a first RNTI. The UE may transmit feedback information for the group-common transmission. The UE may then receive a downlink control information (DCI) message scheduling either a group-common retransmission of the group-common downlink shared channel or a unicast retransmission of the group-common downlink shared channel. The DCI may indicate that either the group-common retransmission is associated with the first RNTI or that the unicast retransmission is associated with a second RNTI that may be different from the first RNTI.

公开(公告)号：US11463297B2

公开(公告)日：2022-10-04

申请号：US17264261

申请日：2018-08-07

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Liangming Wu ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal

IPC: H04L23/02 ,  H04L27/34 ,  H04B17/336 ,  H04B17/373 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for adaptive modulo base selection for non-linear precoding. Aspects provide a method for wireless communications that can be performed by a base station (BS). The BS adaptively selects a modulo base for a data stream for at least one user equipment (UE) in a transmission to one or more UEs. The BS selects the modulo base based on one or more parameters. The BS transmits a signal for at least one UE of the one or more UEs to identify the selected modulo base. The BS performs the transmission to the one or more UEs. The UE receives the transmission from the BS and the signal for the identification of the selected modulo base. Based on the signal, the UE determines the modulo base for at least one data stream in the transmission and decodes the data stream using the modulo base.

公开(公告)号：US11463192B2

公开(公告)日：2022-10-04

申请号：US16799515

申请日：2020-02-24

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Peter Gaal ,  Jing Sun ,  Wanshi Chen

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

Abstract: Techniques for monitoring for control information in sets of downlink control channel resources are described, where multiple sets of downlink control channel resources may overlap. The described techniques include monitoring for one or more search spaces in a set of downlink control channel resources by rate matching downlink control channel resources independently of other sets of downlink control channel resources. Alternatively, overlapping sets of downlink control channel resources may be rate-matched accounting for reference signals of overlapping sets of downlink control channel resources.

公开(公告)号：US11456906B2

公开(公告)日：2022-09-27

申请号：US16991609

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal ,  Tingfang Ji ,  John Edward Smee

IPC: H04L27/26 ,  H04L5/00 ,  G01S13/50 ,  H04L23/02 ,  H04L25/02

Abstract: Certain aspects of the present disclosure provide techniques for transmitting and processing reference signals, such as DMRS, that may account for mobility characteristics (e.g., that relate to a Doppler measurement) of a wireless node (e.g., a UE), such as Doppler measurements indicating how fast such a device is moving.

公开(公告)号：US20220294597A1

公开(公告)日：2022-09-15

申请号：US17198011

申请日：2021-03-10

Applicant: QUALCOMM Incorporated

Inventor： Abdelrahman Mohamed Ahmed Mohamed Ibrahim ,  Muhammad Sayed Khairy Abdelghaffar ,  Ahmed Attia Abotabl ,  Wanshi Chen ,  Tingfang Ji

IPC: H04L5/14 ,  H04L12/24 ,  H04W72/12

Abstract: Systems, methods, and devices for wireless communication that support cell-group slot format indication (SFI) facilitating dynamic cross-cell operation are described. Cell-group SFI information of some examples supports full duplex operation implemented using cross-cell communication techniques. Devices may be provided with information regarding cell-groups and information regarding cell slot formats for cells in the cell-groups. For example, cell-group SFI may be provided for switching slot (symbol) types across cells for a number of slots, wherein a base station may define a cell-group and a cell-group SFI applies to cells within the cell-group. Cell-group SFI information may indicate cell slot formats for each cell of a selected cell-group to provide a device with slot formats used with respect to the cells of the cell-group. Other aspects and features are also claimed and described.

公开(公告)号：US11432324B2

公开(公告)日：2022-08-30

申请号：US16778956

申请日：2020-01-31

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Linhai He ,  Hung Dinh Ly ,  Seyong Park ,  Naga Bhushan ,  Ying Wang ,  Wanshi Chen ,  Joseph Binamira Soriaga

IPC: H04W74/08 ,  H04W72/14 ,  H04W76/27 ,  H04L1/18 ,  H04L5/00 ,  H04L5/10 ,  H04W24/08 ,  H04W80/02

Abstract: Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.

公开(公告)号：US11431459B2

公开(公告)日：2022-08-30

申请号：US14456880

申请日：2014-08-11

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Naga Bhushan ,  Wanshi Chen ,  Durga Prasad Malladi ,  Tingfang Ji ,  Tao Luo ,  Yongbin Wei ,  Peter Gaal

IPC: H04L5/00 ,  H04W16/14 ,  H04W74/08 ,  H04L1/16

Abstract: Methods, systems, devices, and apparatuses are described for wireless communications. In one method, a set of one or more data subframes of a data frame may be transmitted over an unlicensed spectrum, to a user equipment (UE), during a transmission period. A group hybrid automatic repeat request (HARQ) feedback message for a plurality of data subframes including at least one of the data subframes in the set of one or more data subframes may then be received over the unlicensed spectrum, from the UE, during the transmission period. In another method, a set of one or more data subframes of a data frame may be received over an unlicensed spectrum during a transmission period. A group HARQ feedback message for a plurality of data subframes including at least one of the data subframes in the set of one or more data subframes may then be transmitted over the unlicensed spectrum during the transmission period.

公开(公告)号：US11425714B2

公开(公告)日：2022-08-23

申请号：US16947385

申请日：2020-07-30

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Peter Gaal ,  Wanshi Chen ,  Tao Luo ,  Juan Montojo ,  Tingfang Ji

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04W72/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit or otherwise indicate a semi-static slot format configuration and a dynamic slot format configuration to a user equipment (UE). The UE may determine a slot format configuration based on the received semi-static and dynamic slot format configurations. In some cases, the UE may replace certain resources of the semi-static slot format configuration with resources from the dynamic slot format configuration depending on a certain embodiment. Additionally or alternatively, the base station may transmit an anchor slot configuration to the UE, which may indicate which resources of the semi-static slot format configuration can be overridden or replaced by the dynamic slot format configuration.

公开(公告)号：US11424790B2

公开(公告)日：2022-08-23

申请号：US17424097

申请日：2020-01-20

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Parisa Cheraghi ,  Yu Zhang ,  Lei Xiao ,  Peter Gaal ,  Wanshi Chen ,  Alexei Yurievitch Gorokhov

IPC: H04B7/02 ,  H04B7/0417 ,  H04B7/0456

Abstract: A user equipment (UE) may utilize frequency domain (FD) compression for reporting channel state information (CSI) including a precoding matrix indicator (PMI). The UE may receive a CSI configuration specifying a first set of configured FD units to be reported. The UE may determine a first number of FD units based on the first set of configured FD units. The UE may select a second number of FD units that is greater than or equal to the first number of FD units. The UE may calculate, for one or more layers, a PMI for a second set of FD units including a number of FD units equal to the second number of FD units. The UE may allocate, according to a mapping rule, a number of PMIs for the first set of FD units to a subset of the PMIs for the second set of FD units.