公开(公告)号：US20210076363A1

公开(公告)日：2021-03-11

申请号：US17102170

申请日：2020-11-23

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Jing Jiang ,  Yang Yang ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Wanshi Chen ,  Heechoon Lee

IPC: H04W72/04 ,  H04W28/04

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a communication that includes downlink control information (DCI), wherein a size of the DCI affects a cyclic redundancy check (CRC) value associated with the communication; and determine the DCI or the size of the DCI based at least in part on the CRC value. Numerous other aspects are provided.

公开(公告)号：US10938496B2

公开(公告)日：2021-03-02

申请号：US16453821

申请日：2019-06-26

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Yang Yang ,  June Namgoong ,  Jing Jiang

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04J13/00 ,  H04B7/06 ,  H04W56/00

Abstract: Wireless communication devices are adapted to facilitate multiplexing of signals. According to one example, a wireless communication device can multiplex a first signal and a second signal for transmission across a first resource element and a second resource element. The first resource element may utilize a first subcarrier in a first symbol employing a first numerology. The second resource element may utilize a second subcarrier in a second symbol employing a second numerology that is different from the first numerology, where the second subcarrier overlaps in frequency at least a portion of the first subcarrier. The first and second symbols including the multiplexed first and second signals may subsequently be transmitted. Other aspects, embodiments, and features are also included.

公开(公告)号：US10904871B2

公开(公告)日：2021-01-26

申请号：US16201844

申请日：2018-11-27

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Jing Sun ,  Tao Luo ,  Peter Gaal ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Heechoon Lee ,  Wanshi Chen

IPC: H04L1/00 ,  H04W72/04 ,  H04W72/14 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for aggregation level specific PDCCH modification.

公开(公告)号：US10892811B2

公开(公告)日：2021-01-12

申请号：US16051053

申请日：2018-07-31

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Muhammad Nazmul Islam ,  Sundar Subramanian ,  Wanshi Chen ,  Peter Gaal ,  Rahul Malik ,  Heechoon Lee ,  Yang Yang

IPC: H04B7/06 ,  H04B7/08 ,  H04B7/0408 ,  H04W74/08 ,  H04W24/10 ,  H04W72/04 ,  H04W16/28 ,  H04L5/00 ,  H04W76/19 ,  H04W36/30 ,  H04W36/06 ,  H04W80/02

Abstract: Systems, methods, and apparatuses for performing a beam recovery procedure using a second CC are disclosed. A UE may perform a beam recovery procedure using two component carriers (CCs): for example, CC1 may be a beam formed millimeter wave (MMW) carrier having a beam recovery procedure and CC2 may be an assisting carrier such as a sub-6 GHz carrier. In a first example, a UE may trigger beam recovery for CC1 (on CC2), generate a beam measurement report, and transmit the beam report on resources allocated for uplink transmission on CC2. In a second example, a new scheduling request (SR) may be defined on CC1 for CC2 beam recovery. In a third example, RACH resources or procedures on CC2 may be used to perform the beam recovery for CC1.

公开(公告)号：US10805939B2

公开(公告)日：2020-10-13

申请号：US15710248

申请日：2017-09-20

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Yang Yang

IPC: H04W72/08 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H03M13/35 ,  H03M13/13 ,  H03M13/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for code rate selection for control channels. An exemplary method generally includes selecting, from a set of code rates, a code rate to be used to encode a stream of bits using a polar code, based on at least one of a downlink control channel aggregation size, an uplink control channel assignment, or a payload size of the stream of bits, encoding the stream of bits using the polar code and the selected code rate, and transmitting the encoded stream of bits.

公开(公告)号：US10784991B2

公开(公告)日：2020-09-22

申请号：US15988853

申请日：2018-05-24

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Yang Yang ,  Tao Luo

IPC: H03M13/00 ,  H04L1/00

Abstract: A transmitter may select a control message format of a set of possible control message formats, each of the possible control message formats corresponding to a different number of information bits. The transmitter may polar encode a payload in the selected control message format to generate and transmit a polar-encoded codeword, the payload having a same number of bits for any of the set of possible control message formats. A receiver may determine the set of possible control message formats for the polar-encoded codeword, and may decode the polar-encoded codeword to identify a candidate control message. The receiver may identify a control message format in the set of possible control message formats for the candidate control message based on multiple hypotheses corresponding to the different number of information bits, and may obtain control information from the candidate control message based on the identified control message format.

公开(公告)号：US10687252B2

公开(公告)日：2020-06-16

申请号：US15466663

申请日：2017-03-22

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  June Namgoong ,  Yang Yang ,  Jing Jiang

IPC: H04W4/00 ,  H04W28/20 ,  H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04W72/12

Abstract: A method at a scheduling entity might include determining that interference is present from a neighboring scheduling entity, which implements a second subcarrier spacing that is different from a first subcarrier spacing of the scheduling entity. The scheduling entity might request the neighboring scheduling entity to negotiate a bandwidth group (BWG), where the BWG is a bandwidth occupied by downlink subcarriers within which a transmission parameter is maintained. The method might include negotiating a bandwidth of the bandwidth group and transmitting, if negotiating is successful, downlink data to a scheduled entity served by the scheduling entity according to the negotiated bandwidth. The transmission parameter might be a precoder, rank, modulation order, power inside each BWG, or numerology. The numerology might be scalable and might be a combination of subcarrier spacing and cyclic prefix (CP) overhead, The subcarrier spacing might be scaled while keeping constant the CP overhead as a percentage of a symbol duration.

公开(公告)号：US10686469B2

公开(公告)日：2020-06-16

申请号：US15953239

申请日：2018-04-13

Applicant: QUALCOMM Incorporated

Inventor： Huang Lou ,  Jing Jiang ,  Enoch Shiao-Kuang Lu ,  Gabi Sarkis ,  Yang Yang ,  Hari Sankar

IPC: H03M13/09 ,  H03M13/15 ,  H04L1/00 ,  H03M13/13 ,  H03M13/00

Abstract: Size ambiguity and false alarm rate reduction for polar codes. A user equipment (UE) may determine a decoding candidate bit sequence for a polar-encoded codeword having a codeword size based on a decoding hypothesis for control information having a particular bit length of multiple different bit lengths for the codeword size. The UE may calculate an error detection code (EDC) value for a payload portion of the decoding candidate bit sequence using an EDC algorithm, and may initialize an EDC variable state with at least one non-zero bit value. Scrambling or interleaving of bits may also be performed prior to, or after, polar encoding and may depend on the bit length. In examples, information bits may be bit-reversed prior to generating an EDC value. In examples, the encoded bits may include multiple EDC values to assist the UE in performing early termination and to reduce a false alarm rate.

公开(公告)号：US20200099469A1

公开(公告)日：2020-03-26

申请号：US16467463

申请日：2017-12-07

Applicant: Jing JIANG ,  Gabi SARKIS ,  Yang YANG ,  Shrinivas KUDEK ,  Josph Binamira SORIAGA ,  Hari SANKAR ,  Changlong XU ,  Chao WEI ,  Shrinivas KUDEKAR ,  Qualcomm Incorporated

Inventor： Jing Jiang ,  Gabi Sarkis ,  Yang Yang ,  Shrinivas Kudekar ,  Joseph Binamira Soriaga ,  Hari Sankar ,  Changgiong Xu ,  Chao Wei

IPC: H04L1/00

Abstract: Methods, systems, and devices for encoding and decoding are described. To encode a vector, an encoder allocates information bits of the vector to channel instances of a channel that are separated into groups. The groups may vary in size and allocation of the information bits is based on a base sequence of a given length. During decoding, a decoder assigns different bit types to channels instances by dividing a codeword into a plurality of groups and assigning bit types to channel instances of the plurality of groups using the base sequence.

公开(公告)号：US10476998B2

公开(公告)日：2019-11-12

申请号：US15619115

申请日：2017-06-09

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Yang Yang ,  Joseph Binamira Soriaga

IPC: H04L29/08 ,  H04W72/04 ,  H04W72/08 ,  H04L12/26 ,  H03M13/29 ,  H03M13/37 ,  H03M13/41 ,  H03M13/09 ,  H04L1/00 ,  H03M13/00

Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for increasing decoding performance and/or reducing decoding complexity. A transmitter may divide data of a codeword into two or more sections and then calculate redundancy check information (e.g., a cyclic redundancy check or a parity check) for each section and attach the redundancy check information to the codeword. A decoder of a receiver may decode each section of the codeword and check the decoding against the corresponding redundancy check information. If decoding of a section fails, the decoder may use information regarding section(s) that the decoder successfully decoded in re-attempting to decode the section(s) that failed decoding. In addition, the decoder may use a different technique to decode the section(s) that failed decoding. If the decoder is still unsuccessful in decoding the section(s), then the receiver may request retransmission of the failed section(s) or of the entire codeword.