公开(公告)号：US20210112525A1

公开(公告)日：2021-04-15

申请号：US17068561

申请日：2020-10-12

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Wanshi CHEN ,  Alexandros MANOLAKOS ,  Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Gideon Shlomo KUTZ

IPC: H04W72/02 ,  H04L1/00 ,  H04L27/26 ,  H04L27/38

Abstract: Certain aspects of the present disclosure provide techniques for mapping two-stage sidelink control with multiple layer sidelink data channel. A first user equipment (UE) can rate-match a multiple-layer second stage of a two-stage sidelink control information (SCI) transmission as a single layer. The first UE transmits the multiple-layer second stage of the two-stage SCI, to a second UE, using multiple antenna ports.

公开(公告)号：US20210105817A1

公开(公告)日：2021-04-08

申请号：US17027645

申请日：2020-09-21

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Gabi SARKIS ,  Kapil GULATI ,  Sudhir Kumar BAGHEL

IPC: H04W74/08 ,  H04B17/327 ,  H04B17/27

Abstract: A receiving device identifies a collision between first resources reserved by a first transmitting device and second resources reserved by a second transmitting device and transmits a collision indication to the first transmitting device or the second transmitting device based on the identified collision. A transmitting device that receives a collision indication from the receiving device backs off from transmitting during the resources received by the resource reservation in response to receiving the collision indication from the receiving device.

公开(公告)号：US20210105728A1

公开(公告)日：2021-04-08

申请号：US16948798

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Sudhir Kumar BAGHEL ,  Kapil GULATI ,  Gabi SARKIS ,  Junyi LI ,  Shuanshuan WU

IPC: H04W52/46 ,  H04W52/36 ,  H04L1/18 ,  H04L5/00 ,  H04W8/24 ,  H04W24/10 ,  H04B17/318 ,  H04L1/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify multiple candidate sets of physical sidelink feedback channel (PSFCH) transmissions that include hybrid automatic repeat request (HARQ) feedback for sidelink communications received from one or more peer UEs. The UE may select, from one or more of the multiple candidate sets that satisfy a PSFCH transmit power constraint, at least one candidate set that has a highest value for a utility parameter among utility parameters associated with each of the one or more candidate sets that satisfy a PSFCH transmit power constraint. The UE may transmit, on a PSFCH, the plurality of PSFCH transmissions included in the at least one candidate set in a HARQ feedback occasion. Numerous other aspects are provided.

公开(公告)号：US20210105119A1

公开(公告)日：2021-04-08

申请号：US17062020

申请日：2020-10-02

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Kapil GULATI ,  Alexandros MANOLAKOS ,  Shuanshuan WU ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN

IPC: H04L5/00 ,  H04W72/12 ,  H04L5/02

Abstract: Certain aspects of the present disclosure provide techniques for channel estimation for two-stage sidelink control using sidelink data channel demodulation reference signals (DMRS). A user equipment (UE) can transmit DMRS for the sidelink data channel. The UE may transmit the second stage of the sidelink control using antenna ports or a precoder used for the sidelink data channel. The receiving device may receive the DMRS, estimate the channel, and demodulate the second stage of the sidelink control based on the estimated channel. The receiving device may flexibly determine the DMRS to use for the estimation and demodulation.

公开(公告)号：US20210099918A1

公开(公告)日：2021-04-01

申请号：US17031325

申请日：2020-09-24

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Kapil GULATI ,  Tien Viet NGUYEN ,  Shuanshuan WU ,  Sudhir Kumar BAGHEL

IPC: H04W28/26 ,  H04W72/02 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for flexible resource reservations in sidelink communications. An example method that may be executed by a first user equipment (UE) includes determining, for sidelink communications with a second UE, one or more first resource reservations and one or more second resource reservations. The second resource reservations may have a different frequency resource allocation than the first resource reservations. The method also includes transmitting, to the second UE, control information having an indication of the first resource reservations and the second resource reservations. The method further includes communicating with the second UE based on the first resource reservations and the second resource reservations.

公开(公告)号：US20200374034A1

公开(公告)日：2020-11-26

申请号：US16759255

申请日：2018-11-20

Applicant: Changlong XU ,  Kai CHEN ,  Jing JIANG ,  Gabi SARKIS ,  Hao XU ,  QUALCOMM Incorporated

Inventor： Changlong XU ,  Kai CHEN ,  Jing JIANG ,  Gabi SARKIS ,  Hao XU

IPC: H04L1/00 ,  H04L1/08 ,  H04L1/18

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining a target coding rate, RT, for transmitting a group of K information bits, based on a first coding rate, R1, corresponding to a first target block error rate (BLER) for a first transmission of a first redundancy version (RV) of the packet and a second coding rate, R2, corresponding to a second target BLER for a last transmission of a last RV of the packet; determining a circular buffer size, N, of a circular buffer for use in transmitting the first RV and the last RV of the packet; generating encoded information bits from the K information bits using a polar code having a mother code size of N; writing the encoded information bits to the circular buffer; determining a maximum number of retransmissions, based on a latency requirement for the packet; generating different RVs from the encoded information bits in the circular buffer, each RV based on a corresponding target BLER; and transmitting the first RV via a wireless medium.

公开(公告)号：US20200351776A1

公开(公告)日：2020-11-05

申请号：US16860871

申请日：2020-04-28

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Peter Pui Lok ANG ,  Wooseok NAM ,  Hung Dinh LY ,  Wanshi CHEN ,  Olufunmilola Omolade AWONIYI-OTERI ,  Peter GAAL

IPC: H04W52/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a multi-UE wake-up signal in a downlink control information (DCI) communication. The DCI communication may include a set of content field groups. The UE may identify a content field group of the set of content field groups that is to be read by the UE, and determine a behavior associated with performing a UE wake-up operation based at least in part on the identified content field group. Numerous other aspects are provided.

公开(公告)号：US20200288401A1

公开(公告)日：2020-09-10

申请号：US16791255

申请日：2020-02-14

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Peter Pui Lok ANG ,  Olufunmilola Omolade AWONIYI-OTERI ,  Tao LUO ,  Gabi SARKIS ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W52/02 ,  H04W72/04 ,  H04L5/00

Abstract: A UE receives a first indication of a Wake-Up Signal (WUS) resource for another UE. The UE identifies a conflict between a resource allocated to the UE and the WUS resource for the other UE based on the first indication. The UE modifies communication with a base station in the resource in response to the identifying of the conflict. A base station identifies a conflict between a resource for communication with a first UE and a WUS for another UE and modifies the communication with the first UE in the resource in response to identifying the conflict.

公开(公告)号：US20200280394A1

公开(公告)日：2020-09-03

申请号：US16877398

申请日：2020-05-18

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Joseph Binamira SORIAGA ,  Jing SUN ,  Jing JIANG

IPC: H04L1/00 ,  H03M13/11 ,  H03M13/00 ,  H04L27/26 ,  H03M13/09 ,  H04B7/0456 ,  H04W28/06

Abstract: Apparatuses and methods are disclosed for determining a transport block size (TBS) as a function of various parameters without cyclic dependencies between the parameters and TBS. The disclosed function can determine a TBS in a single pass, and the determined TBS allows the use of code blocks with equal code block size (CBS) in a transport block segmentation process. The determined TBS can provide byte-aligned code block lengths and require no padding bits in a transport block.

公开(公告)号：US20200059317A1

公开(公告)日：2020-02-20

申请号：US16664157

申请日：2019-10-25

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind PATEL ,  Joseph Binamira SORIAGA ,  Gabi SARKIS ,  June NAMGOONG

IPC: H04L1/00 ,  H04L1/18

Abstract: Certain aspects of the present disclosure generally relate to techniques for selecting a base graph to be used for wireless communications. Selection can be based on a variety of factors. Abase graph can be used to derive a low-density parity-check (LDPC) code used for encoding a retransmission of an original transmission. An exemplary method generally includes selecting, based on a modulation and coding scheme (MCS) and a resource allocation (RA) for transmitting a codeword, a base graph (BG), from which to derive a low density parity check (LDPC) code for use in encoding data bits in the codeword (e.g., encoding data bits of a bitstream such that some redundant bits are included in the codeword), encoding the data bits to generate the codeword using the LDPC code derived from the selected BG, and transmitting the codeword using the MCS via resources of the