公开(公告)号：US10411833B2

公开(公告)日：2019-09-10

申请号：US15662012

申请日：2017-07-27

Applicant: QUALCOMM Incorporated

Inventor： Thomas Sun ,  Alexei Yurievitch Gorokhov ,  Hari Sankar

IPC: H03M13/13 ,  H04L1/00 ,  H03M13/09 ,  H03M13/29 ,  H03M13/37 ,  H03M13/00

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may initiate a successive decoding process for an encoded code block received at the wireless device, and generate, using a successive decoder, one or more candidate paths for a first portion of the code block, where the first portion of the code block includes a first data portion and a first data check portion. The wireless device may then perform a checking function on respective first data portions for the one or more candidate paths using respective first data check portions, and determine whether to terminate the successive decoding process prior to completing decoding of the encoded code block based at least in part on determining whether the checking function for each of the one or more candidate paths for the first data portion has failed the checking function.

公开(公告)号：US20190222449A1

公开(公告)日：2019-07-18

申请号：US16360262

申请日：2019-03-21

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Alexei Yurievitch Gorokhov ,  Junyi Li ,  Juergen Cezanne ,  Ashwin Sampath

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/08 ,  H04B7/06 ,  H04W72/04 ,  H04B7/04

Abstract: Methods, systems, and devices for wireless communication are described in which a number of reference signal processes may be configured for a number of slots in a radio frame, and a corresponding reference signal process for each slot may be based at least in part on a location of the slot within the radio frame and a number of configured reference signal processes. An indication may be provided to a user equipment (UE) in each slot that indicates a presence or absence of a reference signal transmission in the slot.

公开(公告)号：US10237892B2

公开(公告)日：2019-03-19

申请号：US15846510

申请日：2017-12-19

Applicant: QUALCOMM Incorporated

Inventor： Arak Sutivong ,  Edward Harrison Teague ,  Alexei Yurievitch Gorokhov

IPC: H04W74/00 ,  H04W52/04 ,  H04L1/16 ,  H04W74/08 ,  H04L1/00 ,  H04W72/08

Abstract: An apparatus and method for transmitting an indicator of channel quality while minimizing the use of a broadcast channel is described. A metric of forward link geometry of observed transmission signals is determined. An indicator of channel quality value is determined as a function of the observed transmission signals. An access sequence is selected, randomly, from one group of a plurality of groups of access sequences, wherein each of the plurality of groups of access sequences correspond to different ranges of channel quality values.

公开(公告)号：US20180302251A1

公开(公告)日：2018-10-18

申请号：US16011234

申请日：2018-06-18

Applicant: QUALCOMM Incorporated

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

IPC: H04L25/03 ,  H04W28/20 ,  H04L27/26 ,  H04J11/00 ,  H04L5/00

Abstract: Apparatuses and methods for performing asynchronous multicarrier communications are provided. One such method involves generating, at a first wireless device, a waveform including one or more carriers, shaping the waveform to reduce interference between the waveform and adjacent waveforms, and transmitting, on a spectrum, the shaped waveform asynchronously.

公开(公告)号：US10028240B2

公开(公告)日：2018-07-17

申请号：US15445572

申请日：2017-02-28

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Gavin Bernard Horn ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Jing Jiang ,  Kambiz Azarian Yazdi ,  Peter Pui Lok Ang ,  Peter Gaal ,  Krishna Kiran Mukkavilli ,  Alexei Yurievitch Gorokhov

IPC: H04W56/00 ,  H04W48/14 ,  H04L5/00 ,  H04W4/06 ,  H04W8/00

Abstract: Methods, systems, and devices are described for wireless communication. In one method, a method of wireless communication at a user equipment (UE) includes receiving a synchronization signal. The synchronization signal may be common to a plurality of cells within a network. The method further includes acquiring a timing of the network based on the synchronization signal, and transmitting a pilot signal in response to acquiring the timing of the network. The pilot signal may identify the UE and be concurrently receivable by the plurality of cells within the network. Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US09985802B2

公开(公告)日：2018-05-29

申请号：US14705787

申请日：2015-05-06

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

CPC classification number: H04L25/0226 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0058 ,  H04L5/0082 ,  H04L5/0096 ,  H04L47/12 ,  H04W72/0446

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：US20180139758A1

公开(公告)日：2018-05-17

申请号：US15808637

申请日：2017-11-09

Applicant: QUALCOMM Incorporated

Inventor： Hari Sankar ,  Alexei Yurievitch Gorokhov ,  Paolo Minero ,  Hobin Kim ,  Raghu Challa ,  Jing Jiang ,  Joseph Binamira Soriaga

IPC: H04W72/04 ,  H04W72/08 ,  H04W24/08 ,  H04W24/02

CPC classification number: H04W72/0466 ,  H04L1/0023 ,  H04L1/005 ,  H04L1/0075 ,  H04W24/02 ,  H04W24/08 ,  H04W72/085

Abstract: Systems, methods and apparatus select a code book based on channel conditions and performance of a demodulator or demapper in a wireless receiver. The method may include determining that the receiver in a first wireless communication apparatus is configured for iteratively processing signals received from a channel, selecting a code book for use in communicating over the channel based on conditions affecting transmission of the signals through the channel and performance information associated with a demapper in the receiver, and identifying the selected code book in one or more control channels transmitted to a second wireless communication apparatus.

公开(公告)号：US20180054780A1

公开(公告)日：2018-02-22

申请号：US15633376

申请日：2017-06-26

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Alexei Yurievitch Gorokhov ,  Chengjin Zhang ,  Chirag Sureshbhai Patel ,  Tamer Kadous

IPC: H04W52/02 ,  H04W72/12 ,  H04W24/02

CPC classification number: H04W52/0219 ,  H04W24/02 ,  H04W52/0216 ,  H04W68/02 ,  H04W72/12 ,  H04W72/1257 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/1242 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/20 ,  Y02D70/21 ,  Y02D70/24

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station operating in unlicensed spectrum may temporarily increase a paging opportunity window (POW) size, or reduce a time between POWs, in order to meet performance metrics or account for time periods when a base station is unable to win access to the wireless medium during a POW. In some cases, a UE may identify a failed listen-before-talk procedure and autonomously update the POW size. In other examples, a base station may initiate a change in POW size or increase a number of paging opportunities in order to meet achieve one or more key performance indicators (KPIs). After a predetermined period, or after a triggering condition is no longer present, the UE and the base station may reset the POW size or the number of paging opportunities to a nominal amount to conserve power.

公开(公告)号：US09872242B2

公开(公告)日：2018-01-16

申请号：US14606757

申请日：2015-01-27

Applicant: QUALCOMM Incorporated

Inventor： Lei Xiao ,  Brian Clarke Banister ,  Amir Farajidana ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04W48/20 ,  H04B7/0417 ,  H04B7/04 ,  H04W24/10 ,  H04W72/04

CPC classification number: H04W48/20 ,  H04B7/0417 ,  H04B7/0478 ,  H04L5/0035 ,  H04L5/0057 ,  H04L5/0073 ,  H04W24/10 ,  H04W72/042

Abstract: Certain example embodiments of the present disclosure provide techniques for joint transmission of channel state information reference signals (CSI-RS) from multiple transmission points (TPs) for channel state feedback and/or TP selection. An example method generally includes coordinating with one or more other TPs to jointly transmit a channel state information reference signal (CSI-RS) to a user equipment (UE); signaling a reporting restriction to the UE; receiving precoding matrix indicator (PMI) feedback from the UE based on the jointly transmitted CSI-RS and subject to the reporting restriction; and selecting one or more of the TPs to serve based on the PMI feedback.

公开(公告)号：US20170359714A1

公开(公告)日：2017-12-14

申请号：US15386114

申请日：2016-12-21

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Tingfang Ji ,  Chong Li ,  Shailesh Patil ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Wei Zeng ,  Alexei Yurievitch Gorokhov ,  Junyi Li

IPC: H04W8/00 ,  H04W74/08 ,  H04W64/00 ,  H04W72/02

CPC classification number: H04W8/005 ,  H04W64/006 ,  H04W72/02 ,  H04W74/08 ,  H04W74/0825 ,  H04W92/18

Abstract: Device detection in networks with mixed mobility devices is discussed. Devices in the network first determine a discovery mode from a plurality of discovery modes, wherein the determining is based on a mobility state of the wireless device. The device identifies a set of resources associated with the determined discovery mode, wherein each of the plurality of discovery modes is provisioned with separate resources. A discovery signal is transmitted using the identified set of resources according to the discovery mode. Thus, devices with higher mobility will generally send discovery signals more often than devices that are static or semi-static.