公开(公告)号：US10728080B2

公开(公告)日：2020-07-28

申请号：US15428879

申请日：2017-02-09

Applicant: QUALCOMM Incorporated

Inventor： Hari Sankar ,  Jing Jiang ,  Alexei Yurievitch Gorokhov ,  Joseph Binamira Soriaga ,  Brian Banister

IPC: H04L27/36 ,  H04L1/00 ,  H03M13/25 ,  H03M13/13 ,  H03M13/35 ,  H04L27/20

Abstract: Methods, systems, and devices for wireless communication are described. A transmitter, such as a user equipment and/or a base station, may perform polar coding to encode bits. The polar coding may be associated with a plurality of component channels associated with a polar code length. The transmitter may interleave the encoded bits. The transmitter may map the interleaved encoded bits to a modulation symbol. The interleaving and mapping of each encoded bit may be based on an asymmetry of a polar code construction. The transmitter may transmit the interleaved encoded bits based on the mapping.

公开(公告)号：US20200228280A1

公开(公告)日：2020-07-16

申请号：US16837423

申请日：2020-04-01

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Jing Jiang ,  Alexandros Manolakos ,  Chih-Ping Li

IPC: H04L5/00 ,  H04W76/27 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. One method may include receiving radio resource control signaling configured with a first set of demodulation reference signal parameters for transmission of an uplink data channel of a type, receiving downlink control information of a format to activate the transmission of the uplink data channel, identifying a second set of demodulation reference signal parameters for transmission of the uplink data channel of the type based on the received downlink control information, and activating the transmission of the uplink data channel using the first and second set of demodulation reference signal parameters.

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：US10680751B2

公开(公告)日：2020-06-09

申请号：US16192697

申请日：2018-11-15

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 ,  H04L5/00 ,  H04L5/14

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：US20200100257A1

公开(公告)日：2020-03-26

申请号：US16582944

申请日：2019-09-25

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Jing Jiang ,  Chih-Ping Li ,  Seyedkianoush Hosseini ,  Heechoon Lee

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. In one example, a base station may dynamically configure a user equipment (UE) to monitor or avoid monitoring for a preemption indication. Accordingly, the UE may have a lower chance of monitoring for a preemption indication when it is unlikely that an uplink or downlink transmission will be preempted. In another example, a base station may transmit a control message indicating whether future indications received from the base station are to be interpreted as preemption indications or permission indications. Accordingly, the base station may choose to use either preemption indications or permission indications (e.g., based on the probability of collisions between mobile broadband (MBB) and low latency transmissions) to facilitate MBB and low latency communication multiplexing with limited signaling.

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：US10594532B2

公开(公告)日：2020-03-17

申请号：US16228168

申请日：2018-12-20

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Jing Jiang ,  Yi Huang ,  Wei Zeng ,  Wanshi Chen ,  Tingfang Ji

IPC: H04L27/26 ,  H04B7/0404 ,  H04B7/06 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0456 ,  H04J13/12

Abstract: A configurable new radio (NR) uplink (UL) transmission may use transmit diversity. A user equipment (UE) may identify an uplink transmission of at least one stream as using one of cyclic prefix orthogonal frequency division multiplexing or discrete Fourier transform spread orthogonal frequency division multiplexing. The UE may apply a precoding matrix to the at least one identified stream. The precoding matrix changes over time. The precoding matrix may change based on closed loop feedback, a precoding cycling pattern, and/or a code division multiplexing group. The UE may transmit the at least one identified stream from multiple antennas according to the applied precoding matrix.

公开(公告)号：US10548155B2

公开(公告)日：2020-01-28

申请号：US16434133

申请日：2019-06-06

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli ,  Peter Pui Lok Ang ,  Tingfang Ji ,  Peter Gaal

IPC: H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04W76/10

Abstract: Aspects of the present disclosure provide various wireless communication numerology designs that can maintain symbol boundary alignment while multiplexing different numerologies in wireless communication. The symbols may be scaled for different tone or subcarrier spacings while maintaining the symbol boundary alignment between different numerologies. Maintaining the symbol-boundary alignment between different numerologies enables symbol-level numerology multiplexing. The disclosed numerology designs enable low latency communication and improved interference management, and provide non-ambiguous symbol boundary timing reference for multiplexing different numerologies.

公开(公告)号：US10541780B2

公开(公告)日：2020-01-21

申请号：US15067914

申请日：2016-03-11

Applicant: QUALCOMM Incorporated

Inventor： Krishna Kiran Mukkavilli ,  Jing Jiang ,  Naga Bhushan ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Kambiz Azarian Yazdi ,  Santosh Paul Abraham ,  John Edward Smee

IPC: H03M13/00 ,  H04L1/00 ,  H04L1/18

Abstract: Various features pertain to mitigating interference on downlink/uplink channels caused by bursty traffic transmissions. A transmitting node encodes data into transport blocks, each including code blocks in which the data is encoded. The transport blocks are then wirelessly transmitted over a channel specific to a receiving node, where the code blocks of the transport blocks are transmitted without redundant parity code blocks or with a desired amount of redundant parity code blocks. The transmitting node then receives an indication from the receiving node of a number of failed data code blocks. The transmitting node generates an error correction code sufficient to recover all of the failed code blocks and transmits the error correction code within a new transport block along with new data. The receiving node receives the new transport block including the error correction code and then recovers the failed code blocks from the error correction code via erasure decoding, a combination of erasure decoding and error decoding, and/or other suitable techniques at the code block level.