公开(公告)号：US10313160B2

公开(公告)日：2019-06-04

申请号：US15984241

申请日：2018-05-18

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  Peter Gaal ,  John Edward Smee ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04L12/801

Abstract: The disclosure relates in some aspects to techniques for improved channel estimation. For example, a device can specify a pilot structure where pilot density differs over time. As another example, a device can indicate that a pilot from a prior transmission time interval (TTI) can be used for channel estimation. As another example, a device can employ frequency domain physical resource block (PRB) bundling with the bundling information signaling. As yet another example, a device can use an adjustable traffic-to-pilot ratio (TPR) for throughput optimization. Other aspects, embodiments, and features are also discussed and claimed.

公开(公告)号：US10257844B2

公开(公告)日：2019-04-09

申请号：US15681296

申请日：2017-08-18

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Gabi Sarkis ,  Jamie Menjay Lin ,  Tao Luo

IPC: H04L1/00 ,  H04L1/08 ,  H04W16/28 ,  H04W72/00 ,  H04W72/04 ,  H04W72/08 ,  H04B7/06 ,  H03M13/37 ,  H04W88/02 ,  H04W88/08

Abstract: Various features related to decoding jointly coded broadcast information and beam/symbol index information to achieve higher reliability and reduced decoding errors from the perspective of a receiving device such as a UE are described. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to receive a first beam and a second beam of a plurality of beams from a base station, the first beam including broadcast information and a first beam index information jointly encoded together, and the second beam including broadcast information and a second beam index information jointly encoded together, determine a first LLR of the first beam, determine a second LLR of the second beam, and decode the broadcast information and the first beam index information in the first beam based on both the first LLR and the second LLR.

公开(公告)号：US10237889B2

公开(公告)日：2019-03-19

申请号：US15186998

申请日：2016-06-20

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Jing Jiang ,  Tingfang Ji ,  Chih Ping Li ,  Gavin Bernard Horn ,  Keiichi Kubota

IPC: H04W72/14 ,  H04W72/12 ,  H04W72/00 ,  H04W72/04 ,  H04W52/02 ,  H04W74/04

Abstract: A method, an apparatus, and a processor-readable storage medium for wireless communication are provided. In an aspect, the apparatus is a subordinate entity that receives an indication of a resource allocated for an uplink transmission. The subordinate entity also receives a condition associated with the resource. The subordinate entity evaluates whether the condition is satisfied and determines whether to transmit a packet using the resource based on the condition being satisfied. In another aspect, the apparatus is a scheduling entity that generates an indication of a resource allocated for an uplink transmission. The resource is associated with a condition that limits access to the resource. The scheduling entity transmits the indication and the condition to a subordinate entity and receives a packet from the subordinate entity via the resource based on the condition being satisfied.

公开(公告)号：US10231259B2

公开(公告)日：2019-03-12

申请号：US14948099

申请日：2015-11-20

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Jing Jiang ,  Tingfang Ji

IPC: H04W72/12 ,  H04W72/14

Abstract: The disclosure relates in some aspects to techniques for use in systems where a plurality of devices with different priority levels share a common set of resources for communication (e.g., downlink transmissions). Certain aspects provide a new indication channel and a procedure to signal scheduling information (e.g., priority information). Such information may serve as an indicator for possible new grants. Such information may additionally serve as an indicator for higher-priority scheduling conflicts or include explicit commands that result from conflicts (e.g., conflicts relating to puncturing of resources allocated for transmissions to lower priority devices).

公开(公告)号：US10224966B2

公开(公告)日：2019-03-05

申请号：US15851303

申请日：2017-12-21

Applicant: QUALCOMM Incorporated

Inventor： Jian Li ,  Changlong Xu ,  Chao Wei ,  Jilei Hou ,  Jing Jiang

IPC: G06F11/10 ,  H03M13/29 ,  H03M13/00 ,  H03M13/15

Abstract: Methods, systems, and devices for wireless communication are described that support channel selection for parity bits in polar coding techniques. In some cases, an encoder or decoder of a wireless device may assign information bits, frozen bits, and parity check bits to polar channels of an encoder or decoder based on reliability metrics. The information bits may initially be assigned and based on a channel index of the first information bit, the parity check bits may be assigned to channels having higher channel indices than the first information bit. After assignment, the bits may be encoded or decoded.

公开(公告)号：US20190044540A1

公开(公告)日：2019-02-07

申请号：US16051262

申请日：2018-07-31

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Gabi Sarkis ,  Yang Yang ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Shrinivas Kudekar

IPC: H03M13/13 ,  H04L1/00 ,  H03M13/27 ,  H04W72/04

Abstract: A wireless device (e.g., a base station or user equipment (UE)) may encode a codeword using a polar code for transmission over a wireless channel. The device may identify a set of bit locations of the polar code for a set of information bits based on a bit index reliability sequence. The bit index reliability sequence may be based on applying an ordered combination of a universal partial order, an analytical method, and a simulation. The bit index reliability sequence may be determined based on a binary bit weighting for the set of bit channels that applies one or more weighting factors. In some cases, the device may store the bit index reliability sequence in a lookup table for encoding, decoding, or both. A device receiving the transmitted codeword may similarly utilize the bit index reliability sequence to decode the codeword and determine the transmitted information bits.

公开(公告)号：US10142060B2

公开(公告)日：2018-11-27

申请号：US15905243

申请日：2018-02-26

Applicant: QUALCOMM INCORPORATED

Inventor： Changlong Xu ,  Jing Jiang ,  Yang Yang ,  Gabi Sarkis

IPC: H03M13/00 ,  H04L1/00

Abstract: Polar encoding using two or more concatenated cyclic redundancy check (CRC) data values may enhance CRC-aided successive cancellation list decoding in a communication system. A polar encoding method may include determining first CRC data from source data, combining the source data and the first CRC data to form first combined data, determining second CRC data from the first combined data, and combining the source data, the first CRC data, and the second CRC data to form second combined data.

公开(公告)号：US20180331693A1

公开(公告)日：2018-11-15

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

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：US10123219B2

公开(公告)日：2018-11-06

申请号：US14996902

申请日：2016-01-15

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  John Edward Smee ,  Jing Jiang ,  Joseph Binamira Soriaga

IPC: H04W4/00 ,  H04W24/02 ,  H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H04L5/14 ,  H04L5/00

Abstract: Techniques are described for wireless communication. A first method includes wirelessly communicating at a first device, with a second device, according to a first subframe structure; receiving a subframe truncation parameter from the second device; and terminating the first subframe structure based at least in part on the subframe truncation parameter. The first subframe structure includes a first periodic sequence of downlink transmission time intervals (TTIs) and uplink TTIs. A second method includes wirelessly communicating at a first device, with a second device, according to a parameterized self-contained subframe structure having an interlaced portion and a tail portion; and reducing a delay indicated by a nominal trigger-response delay parameter associated with a downlink TTI, to enable a response message corresponding to the downlink TTI to be transmitted during the tail portion and before termination of the subframe structure.

公开(公告)号：US10104616B2

公开(公告)日：2018-10-16

申请号：US15053679

申请日：2016-02-25

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Stephen Jay Shellhammer ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Tingfang Ji ,  Cong Nguyen ,  Joseph Patrick Burke ,  Wei Zeng ,  Jing Jiang

IPC: H04W52/02 ,  H04L5/00 ,  H04W76/27

Abstract: Systems and methods are disclosed for enhancing the power efficiency of low power internet of everything (IOE) devices or user equipments (UEs). A UE or IOE having a low power companion receiver maintains its full power receiver in a sleep state until it receives a wake up indicator from a base station. In response to the wake up signal, the UE or IOE powers up its full power receiver and receives data from the base station. The base station further schedules the wake up signals so as not to collide with control signals expected by UEs or IOEs without low power receivers, or those UEs and IOEs are configured to detect and react to the wake up signals.