公开(公告)号：US11375464B2

公开(公告)日：2022-06-28

申请号：US16542285

申请日：2019-08-15

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Arjun Bharadwaj ,  Shuanshuan Wu ,  Tien Viet Nguyen ,  Sudhir Kumar Baghel

IPC: H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first kind of synchronization signals from a first synchronization source and may receive a second kind of synchronization signals from a second synchronization source. Additionally, the UE may determine a first priority for the first synchronization source and a second priority for the second synchronization source based on whether each synchronization source is connected to a global navigation satellite system from information in the synchronization signals. Accordingly, the UE may then select the synchronization source with the higher priority and communicate with one or more additional UEs based on synchronizing with the selected synchronization source. In some cases, the first kind of synchronization signals may include sidelink synchronization signals, and the second kind of synchronization signals may include data-based synchronization signals (e.g., demodulation reference signals).

公开(公告)号：US11343666B2

公开(公告)日：2022-05-24

申请号：US16239383

申请日：2019-01-03

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Zhibin Wu ,  Junyi Li ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Libin Jiang

IPC: H04W8/00 ,  H04W72/00 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04L27/26 ,  H04L27/00

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may broadcast a discovery preamble to identify a receiving device or to identify a suitable beam for communicating with a receiving device prior to broadcasting a discovery message to the receiving device. In such systems, the wireless device may use the techniques described herein to generate the discovery preamble and to reduce interference between discovery preamble transmissions and avoid data loss. In one example, a wireless device may append a cyclic prefix (CP) to a discovery preamble with a suitable length to protect the discovery preamble from interference from another transmission. In another example, the wireless device may generate a cyclically periodic signal including multiple copies of the discovery preamble so a receiving device may be able to receive a portion of the signal and identify the discovery preamble.

公开(公告)号：US11337233B2

公开(公告)日：2022-05-17

申请号：US16511994

申请日：2019-07-15

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Wanshi Chen ,  Peter Gaal

IPC: H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a first transmission, wherein the first transmission includes information identifying a window, and wherein the UE is to transmit at least part of a second transmission in the window; and transmit at least part of the second transmission in the window. Numerous other aspects are provided.

公开(公告)号：US11329789B2

公开(公告)日：2022-05-10

申请号：US16790375

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Shuanshuan Wu ,  Naga Bhushan ,  Junyi Li ,  Sudhir Kumar Baghel ,  Arjun Bharadwaj ,  Shailesh Patil

IPC: H04L5/00 ,  H04W72/10 ,  H04W4/70 ,  H04W72/04 ,  H04L1/00 ,  H04W4/40 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. A first device may identify that a first set of transmission resources in a transmission time interval (TTI) has a higher priority at a second device than a second set of transmission resources in the TTI. The first device may identify that a message is to be transmitted from the first device to the second device via the TTI and process the message into a bit sequence based on the identification of the second set of transmission resources in the TTI, where the processing increases a likelihood that systematic bits of the message are received at the second device despite presence of the second set of transmission resources in the TTI. The first device may transmit the bit sequence to the second device via the TTI.

公开(公告)号：US11252777B2

公开(公告)日：2022-02-15

申请号：US16750449

申请日：2020-01-23

Applicant: QUALCOMM Incorporated

Inventor： Zhibin Wu ,  Hong Cheng ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Shailesh Patil ,  Junyi Li

IPC: H04W76/27 ,  H04W76/11 ,  H04W4/40 ,  H04W28/02 ,  H04W80/02 ,  H04W80/08 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may initiate a radio resource control (RRC) layer signaling procedure between the UE and a target UE, include an upper layer signaling message in an RRC message based in part on the RRC layer signaling procedure, and transmit the RRC message including the upper layer signaling message to the target UE. Alternatively, upper layer signaling messages may be transmitted separately before or after the RRC layer signaling procedure.

公开(公告)号：US11234169B2

公开(公告)日：2022-01-25

申请号：US16562044

申请日：2019-09-05

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Sudhir Kumar Baghel ,  Peter Gaal ,  Shailesh Patil ,  Shuanshuan Wu

IPC: H04W28/26 ,  H04W4/40 ,  H04B1/7143 ,  H04L27/26

Abstract: Certain aspects of the present disclosure provide techniques for signaling frequency hopping information for data transmissions sent over a plurality of transmission time intervals. In some cases, a sequence may be selected and transmitted to indicate whether frequency hopping is used and/or additional information about how the frequency hopping will occur.

公开(公告)号：US11228995B2

公开(公告)日：2022-01-18

申请号：US16534770

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Shailesh Patil ,  Sudhir Kumar Baghel ,  Naga Bhushan ,  Tien Viet Nguyen ,  Arjun Bharadwaj

IPC: H04L12/28 ,  H04W56/00 ,  G01S19/04 ,  H04J1/16

Abstract: Aspects of the present disclosure provide synchronization techniques for user equipment (UEs) that may be otherwise unable to support sidelink communication a synchronized UE and may have also lost global navigation satellite system (GNSS) and/or Evolved Node Base Stations (eNBs) as a synchronization source. In such instance, the unsynchronized UE may utilize reference signals (RS) from the data packets received from other UEs to track the timing and perform autonomous timing adjustments based thereon for synchronized packet transmission or reception.

公开(公告)号：US11197303B2

公开(公告)日：2021-12-07

申请号：US16746433

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan Wu ,  Kapil Gulati ,  Navid Abedini ,  Sudhir Kumar Baghel ,  Arjun Bharadwaj ,  Tien Viet Nguyen ,  Shailesh Patil

IPC: H04W72/10 ,  H04W56/00 ,  H04W72/02 ,  H04W92/18

Abstract: Aspects described herein relate to transmitting a direct link synchronization signal for wireless communications. A user equipment (UE) may determine a synchronization signal priority level. The UE may determine a number of resources in a synchronization signal period on which to transmit a direct link synchronization signal block from the UE based on the synchronization signal priority level. The UE may transmit the direct link synchronization signal block on the number of resources.

公开(公告)号：US11191077B2

公开(公告)日：2021-11-30

申请号：US16813164

申请日：2020-03-09

Applicant: QUALCOMM Incorporated

Inventor： Zhibin Wu ,  Jose Edson Vargas ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Tao Luo

IPC: H04W72/04 ,  H04W48/16 ,  H04W4/46 ,  H04L27/26 ,  H04W16/28 ,  H04W76/14

Abstract: Techniques and apparatus for peer discovery using directional transmissions are described. The techniques described herein may be used by wireless nodes (e.g., vehicles or UEs incorporated in vehicles) for efficient peer discovery in V2X systems.

公开(公告)号：US11172508B2

公开(公告)日：2021-11-09

申请号：US16669344

申请日：2019-10-30

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Sudhir Kumar Baghel ,  Kapil Gulati

IPC: H04W74/08 ,  H04W36/00 ,  H04L5/00 ,  H04W72/12 ,  H04W4/40 ,  H04W28/26 ,  H04W88/06

Abstract: To improve the performance of a user equipment (UE) with V2X capability using two radio access technologies (RATs), such as NR V2X and LTE V2X capabilities, a method is disclosed for the UE having a first and a second RAT component to allocate or adjust resources for V2X transmission using the first RAT and/or V2X transmission using the second RAT to avoid or reduce potential collisions. The second RAT component may receive from the first RAT component information on first resources for V2X transmission using the first RAT. The second RAT component may determine if there is a potential collision between the first resources for V2X transmission using the first RAT and second resources for V2X transmission using the second RAT. The second RAT component may change the second resources if there is a potential collision. The first and second RAT components may transmit their respective V2X transmissions to UEs.