公开(公告)号：US20220014409A1

公开(公告)日：2022-01-13

申请号：US17369518

申请日：2021-07-07

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Wei Yang ,  Krishna Kiran Mukkavilli

IPC: H04L27/26

Abstract: Peak to average power ratio (PAPR) reduction with respect to signals of component carriers of a carrier aggregation configuration may be provided using preconfigured or fixed PRT location sequences (e.g., fixing the number and location of PRTs). A device transmitting signals of component carriers of a carrier aggregation configuration may perform PRT magnitude and phase optimization processing with respect to PRTs of a PRT location sequence using techniques, such as may use a signal to clipping noise ratio, tone reservation (SCR-TR) algorithm. Various PRT location sequence configurations, such as PRT sideband location sequence configurations, PRT inband location sequence configurations, etc., may be selected to facilitate reduction of PAPR associated with the data tones of one or more carrier aggregation component carriers, such as to satisfy a PAPR threshold. Other aspects and features are also claimed and described.

公开(公告)号：US11218282B2

公开(公告)日：2022-01-04

申请号：US16432767

申请日：2019-06-05

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Jing Jiang ,  Linhai He ,  Wanshi Chen ,  Tingfang Ji ,  Peter Pui Lok Ang

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

Abstract: Methods, systems, and devices for wireless communications are described. As described herein, a service type may be configured, activated, and utilized for subsequent communications according to the service type. For example, a user equipment (UE) may monitor a downlink control channel associated with the service type based on configuring the service type and activating the service type, receive downlink messages associated with the service type, or transmit uplink messages associated with the service type. In some cases, the service type may be activated by transmitting a medium access control (MAC) control element (CE) or a downlink control information (DCI) message. When traffic associated with the service type is no longer present, the service type may be deactivated based on a deactivation indication and/or a deactivation timer. In some cases, the service type may include an ultra-reliable low latency communication (URLLC) service or a low latency service.

公开(公告)号：US11212786B2

公开(公告)日：2021-12-28

申请号：US16405817

申请日：2019-05-07

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Gabi Sarkis ,  Wei Yang ,  Chih-Ping Li ,  Heechoon Lee ,  Jing Jiang ,  Peter Gaal ,  Wanshi Chen ,  Linhai He ,  Joseph Binamira Soriaga

IPC: H04W72/04 ,  H04W28/12 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described that provide for service indication via downlink control information (DCI) in which different services have a same DCI size. Techniques provide also that a DCI format may be indicated by a masking operation on a cyclic redundancy check (CRC) of the DCI. The DCI may include an indicator field that may indicate the service of the associated operation. The indication may also be provided via different monitoring occasions of the DCI transmissions that are associated with different services. Different DCI search spaces also may be associated with different services and provide the service indication. Additionally or alternatively, different scrambling sequences used on all or a portion of control information or demodulation reference signal transmissions may be associated with different services.

公开(公告)号：US11184134B2

公开(公告)日：2021-11-23

申请号：US16702369

申请日：2019-12-03

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Alexandros Manolakos ,  Wanshi Chen ,  Peter Gaal ,  Gokul Sridharan ,  Juan Montojo

IPC: H04L5/00 ,  H04B7/0456 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may identify multiple demodulation reference signal (DMRS) symbols corresponding to multiple DMRS ports of a multiple input multiple output configuration. The transmitting device may generate multiple phase-rotated and precoded DMRS symbols by applying an orthogonal cover code, a phase rotation scheme, and a precoding matrix to the identified DMRS symbols. The transmitting device may map the phase-rotated and precoded DMRS symbols to time-frequency resources corresponding to multiple antenna ports, and transmit a DMRS based on the mapped phase-rotated and precoded DMRS symbols. The transmitting device may transmit the DMRS using multiple antennas that correspond to the antenna ports.

公开(公告)号：US20210320739A1

公开(公告)日：2021-10-14

申请号：US17152402

申请日：2021-01-19

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Yang ,  Peter Gaal ,  Wanshi Chen ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04J13/12 ,  H04J13/00 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an uplink payload in a wireless communications system. The UE may identify a set of sequences configured for conveying a payload including a set of bits, where each sequence of the set of sequences is orthogonal to each other sequence of the set of sequences. The UE may select a first sequence from the set of sequences based on a mapping between the set of sequences and payload values corresponding to the set of bits. The UE may transmit the payload including the set of bits using the first sequence.

公开(公告)号：US11108526B2

公开(公告)日：2021-08-31

申请号：US16370594

申请日：2019-03-29

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Jing Jiang ,  Wanshi Chen ,  Wei Yang ,  Ying Wang ,  Chih-Ping Li

IPC: H04L5/00 ,  H04L1/00 ,  H04W52/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a block error rate (BLER) target for communications associated with the user equipment; determine a resource allocation pattern for transmission of channel state information reference signals (CSI-RS) based at least in part on the BLER target; and monitor one or more resources, indicated by the resource allocation pattern, for the CSI-RS. Numerous other aspects are provided.

公开(公告)号：US20210259010A1

公开(公告)日：2021-08-19

申请号：US17174272

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyedkianoush Hosseini ,  Peter Gaal ,  Wanshi Chen ,  Yi Huang

IPC: H04W72/14 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. Wireless communications systems may employ one or more scheduling constraints to support efficient utilization of techniques for intra-device handling of overlapping scheduled uplink transmissions (e.g., intra-device dynamic resource cancelation and multiplexing) as well as inter-device handling of overlapping scheduled uplink transmissions (e.g., inter-device dynamic resource cancelation and multiplexing). Scheduling constraints may define how a device may apply intra-device and inter-device multiplexing and cancelation rules for various scenarios. For example, a device may apply intra-UE cancelation rules before inter-device cancelation rules. In some examples, later-received grants or uplink preemption indications (ULPIs) may not change a device's previously established decision to drop an uplink transmission. As another example, a device may not expect to receive a grant for an uplink transmission that would arise in subsequent cancelation of that uplink transmission due to a previously-received grant or previously-received ULPI.

公开(公告)号：US20210258992A1

公开(公告)日：2021-08-19

申请号：US17171842

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Hwan Joon Kwon ,  Peter Gaal ,  Seyedkianoush Hosseini ,  Wei Yang

IPC: H04W72/12 ,  H04L5/00

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support resolution of uplink (UL) transmission overlap of communication types having different priorities. In some implementations, a method of wireless communication includes determining, at a user equipment (UE), that a first scheduled UL transmission corresponding to a first communication type having a first priority overlaps with a second scheduled UL transmission corresponding to a second communication type having a second priority. The first priority is higher than the second priority. The method also includes multiplexing at least a portion of the first scheduled UL transmission with at least a portion of the second scheduled UL transmission to generate a third UL transmission. The method further includes transmitting, from the UE to a base station, the third UL transmission. Other aspects and features are also claimed and described.

公开(公告)号：US11070310B2

公开(公告)日：2021-07-20

申请号：US16399466

申请日：2019-04-30

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Gabi Sarkis ,  Wei Yang ,  Wanshi Chen ,  Peter Gaal

IPC: H04L1/00 ,  H04L1/18 ,  H04W72/04 ,  H04W72/12 ,  H04W56/00 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described that provide for determining downlink control resources for transmitting control information to a user equipment (UE) that indicates downlink resources for a downlink transmission and a number of repetitions of the downlink transmission. The control information may be provided in a first transmission time interval (TTI), and the repetitions may span a number of TTIs. The UE may rate-match a shared channel containing the downlink transmission around the downlink control resources of the first TTI, and also perform the same rate-matching around corresponding resources in each subsequent TTI of the plurality of TTIs.

公开(公告)号：US20210219331A1

公开(公告)日：2021-07-15

申请号：US17146373

申请日：2021-01-11

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Yang ,  Wanshi Chen ,  Peter Gaal ,  Seyedkianoush Hosseini ,  Krishna Kiran Mukkavilli

IPC: H04W72/14 ,  H04W72/12 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify and schedule a set of bits in the physical uplink shared channel (PUSCH) for transmission of feedback for downlink transmissions occurring after transmission of the uplink grant scheduling the PUSCH. After receiving the uplink grant, a user equipment (UE) may receive control channel (PDCCH) transmissions that schedule downlink transmissions. The UE may monitor for and generate feedback for the downlink transmission. The UE may then utilize the bits indicated by the UL grant to transmit the feedback. In some examples, the UE may determine whether the indicated bits are adequate to transmit the feedback for the later downlink transmissions. When the UE determines that the extra bits are not adequate (e.g., there are not enough bits), then the UE may determine to transmit the feedback separate from the PUSCH resources scheduled by the uplink grant.