公开(公告)号：US10541791B2

公开(公告)日：2020-01-21

申请号：US14689853

申请日：2015-04-17

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/18 ,  H04W74/02 ,  H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices are described for wireless communication. In one method, a first transmission may be transmitted on a contention-based channel, and a scheduling request for the first transmission may be transmitted on a scheduled channel. The scheduling request may be transmitted prior to determining that an acknowledgment (ACK) message has been received for the first transmission. In another method, a scheduling request for a first transmission may be received on a scheduled channel from a wireless device. Upon decoding a reception of the first transmission on a contention-based channel, transmission of a transmission grant to the wireless device may be withheld. Upon failing to decode the reception of the first transmission on the contention-based channel, the transmission grant may be transmitted to the wireless device.

公开(公告)号：US10484135B2

公开(公告)日：2019-11-19

申请号：US14968376

申请日：2015-12-14

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Tao Luo ,  Jing Jiang ,  Tingfang Ji ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Joseph Binamira Soriaga ,  Kambiz Azarian Yazdi ,  Peter Gaal ,  John Edward Smee ,  Chih Ping Li

IPC: H04L1/00 ,  H03M13/29 ,  H04L1/18

Abstract: Coding for bursty interference is discussed in which a base station receives data bits for transmission. The base station may generate code blocks including information bits and parity bits. The base station may also generate parity check code blocks including information bits corresponding to information bits of the generated code blocks. The base station may transmit the code blocks and the parity check code blocks to a mobile device to improve decoding. When errors are detected, the mobile device may decode the received code blocks using hard or soft parity checks and the parity check code blocks.

公开(公告)号：US20190327062A1

公开(公告)日：2019-10-24

申请号：US16456876

申请日：2019-06-28

Applicant: Qualcomm Incorporated

Inventor： Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Kambiz Azarian Yazdi ,  Krishna Kiran Mukkavilli ,  John Edward Smee

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/16 ,  H04L5/14

Abstract: Methods, systems, and devices are described for fountain hybrid automatic repeat request (HARD) for reliable low latency communication. A wireless device may transmit a data block based on a low latency operational mode. The device may then transmit a number of redundancy versions of the data block prior to determining whether an acknowledgement (ACK) has been received. In some examples the ACK may be an augmented ACK, which may be based on the number of redundancy versions received prior to successfully decoding the data block, and which may include an additional resource request. In some examples, the device may select an updated modulation and coding scheme (MCS) based on the augmented ACK. In some examples, the device may increase a number of frequency resources (e.g., component carriers) used for transmission based on the augmented ACK.

公开(公告)号：US10440726B2

公开(公告)日：2019-10-08

申请号：US15784036

申请日：2017-10-13

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Peter Pui Lok Ang ,  Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli

IPC: H04W4/00 ,  H04W72/12 ,  H04L1/16 ,  H04L5/14 ,  H04L1/00 ,  H04L5/00

Abstract: In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The method may be performed by a scheduling entity. The scheduling entity transmits control information in a control portion of the subframe, the control information corresponding to data information within the subframe, transmits the data information in a data portion of the subframe, receives a pilot signal from the set of subordinate entities in a pilot portion of the subframe, and receives an ACK/NACK signal from the set of subordinate entities in an ACK portion of the subframe. The ACK portion is subsequent to the pilot portion of the subframe. The ACK/NACK signal includes acknowledgment information corresponding to the data information. The control portion, the data portion, the pilot portion, and the ACK portion are contained in the same subframe.

公开(公告)号：US10432378B2

公开(公告)日：2019-10-01

申请号：US15717713

申请日：2017-09-27

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Krishna Kiran Mukkavilli ,  Raghu Challa ,  Yang Yang ,  Alexei Yurievitch Gorokhov ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  Heechoon Lee

IPC: H04L5/00 ,  H04W48/08 ,  H04W52/02 ,  H04W76/28 ,  H04W88/02

Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes identifying a transmission timing of a control reference signal transmitted over a radio frequency spectrum band during an OFF duration of the UE with respect to the radio frequency spectrum band, in which the identified transmission timing is relative to a transition from the OFF duration to an ON duration of the UE with respect to the radio frequency spectrum band; receiving the control reference signal at the identified transmission timing; and performing a warm-up procedure, before the ON duration, based at least in part on the identified transmission timing of the control reference signal. A method for wireless communication at a wireless network includes indicating, to the UE, the transmission timing of the control reference signal; and transmitting the control reference signal at the indicated transmission timing. The OFF duration and the ON duration are coordinated with a wireless network.

公开(公告)号：US10420088B2

公开(公告)日：2019-09-17

申请号：US15613014

申请日：2017-06-02

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Tao Luo ,  Krishna Kiran Mukkavilli ,  June Namgoong ,  Yang Yang ,  Tingfang Ji

IPC: H04W72/04 ,  H04B7/0413 ,  H04L5/00 ,  H04W72/12

Abstract: Aspects of the disclosure provide a slot structure (e.g., the arrangement of channels and pilot signals within a slot) that can relax the processing timeline for a wireless communication device. For example, in the first or initial symbol of a slot, control information may be frequency division multiplexed (FDM) with a demodulation reference signal (DMRS) or with user data. In some cases, delayed-processing data may be sampled, and the samples may be buffered at the receiving device, for processing later, after control information needed to process the data has been received and processed. Further aspects provide for payload pre-tapering. That is, when a device delays the processing of data bits, this can cause a processing bottleneck after that buffering delay. By virtue of various pre-tapering techniques described herein, the processing load needed to process the delayed-processing data can be reduced. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US10389503B2

公开(公告)日：2019-08-20

申请号：US15811289

申请日：2017-11-13

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0452

Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal (SRS) to the base station. The base station characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. As part of applying the channel information, the base station forms the beam to the UE based on the uplink channel information obtained from the SRS. The UE may include an array of antennas, each UE transmitting a different SRS that the base station receives and uses to characterize the downlink. Multiple UEs (or a single UE with multiple antennas) transmit SRS at the same time and frequency allocation (non-orthogonal), but with each sending its own unique SRS. Further, multiple UEs (or a single UE with multiple antennas) may send their SRS at unique time/frequency allocations (orthogonal).

公开(公告)号：US10333752B2

公开(公告)日：2019-06-25

申请号：US14979951

申请日：2015-12-28

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Tingfang Ji ,  Peter Gaal ,  Brian Clarke Banister ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli ,  John Edward Smee

IPC: H04J3/00 ,  H04L27/26 ,  H04L5/00

Abstract: A method of multiplexing scaled numerology OFDM waveforms in an orthogonal frequency division multiplexing is presented. A first data can be encoded into a first numerology at a first set of tones and a second data can be encoded into a second numerology at second set of tones. A third data can be encoded into a guard band in such a way that the third data can be interpreted under either the first numerology or the second numerology.

公开(公告)号：US10237037B2

公开(公告)日：2019-03-19

申请号：US15947489

申请日：2018-04-06

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04B17/309

Abstract: Adaptive pilot signaling is disclosed in which resources allocated to pilot symbols are allowed to vary to more closely match channel conditions. User equipments (UEs) may request different pilot configurations depending on channel conditions. In one embodiment, a method includes receiving a first set of pilot symbols using a first number of resource elements during a first transmission time interval (TTI), and receiving a second set of pilot symbols using a second number of resource elements during a second TTI. In the embodiment, the first TTI and the second TTI include the same number of resource elements, and the first number of resource elements is different than the second number of resource elements.

公开(公告)号：US10075271B2

公开(公告)日：2018-09-11

申请号：US14866803

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04 ,  H04L25/03 ,  H04B7/06 ,  H04L25/02 ,  H04B7/0452

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/0051 ,  H04L25/0222 ,  H04L25/0398 ,  H04W72/0446

Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal to the base station, which characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. The base station may form the beam to the UE based on the uplink channel information obtained from the SRS. As the downlink channel changes the base station needs updated information to maintain its beamforming, meaning it needs a new SRS. Transmission of the SRS takes resources; to minimize this, the UE or the base station can determine a period during which the downlink channel will predictably remain coherent and set up a schedule for sending SRS. Alternatively, the UE or the base station can determine on demand that the channel is losing coherence and initiate an on demand SRS.