公开(公告)号：US10033577B2

公开(公告)日：2018-07-24

申请号：US14863408

申请日：2015-09-23

Applicant: QUALCOMM Incorporated

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

IPC: H04L12/24 ,  H04L27/26 ,  H04W72/04 ,  H04W88/06 ,  H04W8/00 ,  H04W52/02 ,  H04W72/12 ,  H04W84/18

Abstract: Methods, apparatus, and systems for wireless communication are provided. A method for wireless communication using a single radio air interface includes configuring a radio air interface of a first device to operate in accordance with a first variant of resource-spread multiple access technology, communicating wirelessly from a first device to a base station of a wide area network using the first variant of resource-spread multiple access technology, reconfiguring the radio air interface to operate in accordance with a second variant of resource-spread code division multiple access technology, and communicating wirelessly with a second device in a mesh network subsequent to reconfiguring the radio. The first device and the second device communicate wirelessly at power levels below a power level threshold selected to cause the base station to ignore transmissions between the first device and the second device.

公开(公告)号：US20180098348A1

公开(公告)日：2018-04-05

申请号：US15821391

申请日：2017-11-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/00 ,  H04L5/14 ,  H04W76/00

CPC classification number: H04W72/1289 ,  H04L1/00 ,  H04L1/1671 ,  H04L1/1854 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/1469 ,  H04W72/0446 ,  H04W76/00

Abstract: Aspects of the present disclosure provide a self-contained subframe structure for time division duplex (TDD) carriers. Information transmitted on a TDD carrier may be grouped into subframes, and each subframe can provide communications in both directions (e.g., uplink and downlink) to enable such communications without needing further information in another subframe. In one aspect of the disclosure, a single subframe may include scheduling information, data transmission corresponding to the scheduling information, and acknowledgment packets corresponding to the data transmission. Furthermore, the subframe may additionally include a header and/or a trailer to provide certain bi-directional communications functions.

公开(公告)号：US20180098287A1

公开(公告)日：2018-04-05

申请号：US15831251

申请日：2017-12-04

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Amir Aminzadeh Gohari ,  Alexei Yurievitch Gorokhov ,  Raghu Narayan Challa ,  Tingfang Ji ,  Krishna Kiran Mukkavilli ,  Ravi Agarwal ,  Joseph Binamira Soriaga ,  Hao Xu

IPC: H04W52/02 ,  H04W76/04 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W52/0235 ,  H04W52/0216 ,  H04W52/0229 ,  H04W72/0406 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/20 ,  Y02D70/24 ,  Y02D70/26

Abstract: Systems and method of embodiments herein operate to conserve battery power of user equipment (UE). Embodiments determine whether waking up a UE receiver would be beneficial and based on the determination, the UE either wakes up the receiver or returns to sleep. Embodiments determine whether to wake up the receiver by performing pre-wake up (PWU) operation which either wakes up the receiver in a low power mode or wakes up the UE's wake up receiver. It may be determined whether a wake up (WU) signal is received during a PWU stage. If a WU signal is received during the PWU stage the UE may perform a full wake up of the receiver. If a WU signal is not received the UE may return to idle mode. In embodiments, WU (Wake Up) DRX cycles are supplemented with a Full DRX (Discontinuous Reception) cycle.

公开(公告)号：US09929812B2

公开(公告)日：2018-03-27

申请号：US15225593

申请日：2016-08-01

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  June Namgoong ,  Raghuraman Krishnamoorthi ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Krishna Kiran Mukkavilli

IPC: H04B10/50 ,  H04L25/02 ,  H04B7/06 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04L12/26 ,  H04B7/0456 ,  H04W88/02

CPC classification number: H04B10/5055 ,  H04B7/0456 ,  H04B7/0639 ,  H04B7/0691 ,  H04L5/0051 ,  H04L5/14 ,  H04L25/0202 ,  H04L43/16 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described. One method includes identifying a plurality of intermediate precoders corresponding to a plurality of tone subsets. The plurality of intermediate precoders define a plurality of vectors across the plurality of tone subsets. The method further includes selecting, for each vector of the plurality of vectors, a subset of non-frequency domain components of the vector, such as time-domain components; modifying the plurality of intermediate precoders to a plurality of smoothed precoders based at least in part on the selected subset of non-frequency domain components for each vector; and precoding a plurality of transmit streams using the plurality of smoothed precoders. The plurality of smoothed precoders is smoothed in a frequency domain compared to the plurality of intermediate precoders. Smoothing precoders may enable application of wideband channel estimation techniques using user equipment (UE)-specific reference signals.

公开(公告)号：US20170302352A1

公开(公告)日：2017-10-19

申请号：US15369069

申请日：2016-12-05

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Krishna Kiran Mukkavilli ,  Juergen Cezanne ,  Tao Luo ,  Sundar Subramanian ,  Junyi Li

IPC: H04B7/06 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04B7/0626 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/0228 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a phase noise correction reference signal (PC-RS) and a channel state information reference signal (CSI-RS) during a symbol period of a subframe. A user equipment (UE) may identify a first channel information using the PC-RS and the CSI-RS. The UE may transmit a channel information message to the base station that includes the first channel information. The first channel information may include a phase noise corrected channel measurement. The UE may the CSI-RS during the symbol period. Channel and phase noise estimates may be generated using a joint estimation based on the CSI-RS. The CSI-RS may be repeated periodically. In some cases, the UE may additionally or alternatively receive pilot tones that may include PC-RSs. The joint estimation may be further based on the pilot tones.

公开(公告)号：US09781693B2

公开(公告)日：2017-10-03

申请号：US15445616

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: H04W48/20 ,  H04W56/00 ,  H04W8/00 ,  H04W4/06 ,  H04W76/04

CPC classification number: H04W56/0015 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0058 ,  H04W4/06 ,  H04W8/005 ,  H04W48/14 ,  H04W56/00 ,  H04W72/04 ,  H04W76/20 ,  H04W76/27 ,  H04W76/28

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：US09756563B2

公开(公告)日：2017-09-05

申请号：US15393736

申请日：2016-12-29

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Joseph Patrick Burke ,  Tingfang Ji ,  Naga Bhushan ,  Krishna Kiran Mukkavilli ,  Joseph Binamira Soriaga ,  John Edward Smee

IPC: H04W72/00 ,  H04W52/02 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04W52/0212 ,  H04L1/0018 ,  H04W52/0206 ,  H04W52/0209 ,  H04W52/0216 ,  H04W52/028 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/048 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

Abstract: Systems, methods, apparatuses, and computer-program products for performing dynamic bandwidth switching between control signals and data signals of differing bandwidths are disclosed. Frame formats are disclosed in which control signals are transmitted at different bandwidths than data signals. Receiver architectures for receiving the signaling formats are disclosed. A receiver can receive a relatively narrowband control signal while consuming a relatively low power and then dynamically adjust characteristics of various components to receive a data signal at a higher bandwidth while consuming a relatively higher power.

公开(公告)号：US09686689B2

公开(公告)日：2017-06-20

申请号：US14853186

申请日：2015-09-14

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  John Edward Smee ,  Tingfang Ji ,  Ahmed Kamel Sadek ,  Krishna Kiran Mukkavilli ,  Joseph Binamira Soriaga

IPC: H04W16/14 ,  H04W74/08 ,  H04W84/04

CPC classification number: H04W16/14 ,  H04W74/0808 ,  H04W84/042

Abstract: Shared spectrum operation is disclosed for sharing spectrum among multiple wireless deployments. Coordination procedures between and among 2nd and 3rd Tier deployments include the use of beacons transmitted by the 2nd Tier for clearing access to spectrum occupied by 3rd Tier users and multiple 3rd Tier deployments sharing resources using a group-listen before talk (LBT) protocol, rather than a per-node LBT protocol. The 2nd Tier beacon signals are transmitted to alert 3rd Tier users of their presence, which, upon detection, will leave the particular spectrum within a predetermined time. For the shared LBT protocol, the 3rd Tier deployments share the channel with each other through an LBT with random backoff, in which the start time of clear channel assessment (CCA) procedure and the random backoff values are synchronized among nodes of the same deployment.

公开(公告)号：US20170171850A1

公开(公告)日：2017-06-15

申请号：US15268207

申请日：2016-09-16

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Wei Zeng ,  Krishna Kiran Mukkavilli ,  Tao Luo ,  Tingfang Ji ,  Yang Yang

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04L5/0055 ,  H04L5/1469 ,  H04W72/0413 ,  H04W72/0446

Abstract: Control information may be identified and provided to a user equipment (UE) that is formatted into a codeword that is transmitted in a first symbol of a downlink transmission to the UE. The control information may include an allocation of downlink or uplink resources for the UE and data processing parameters. The control information may be partitioned into first control information transmitted in a first codeword and second control information that may be formatted into a second codeword. The second control information may be determined based at least in part on the data acknowledgment from the UE. Such partitioned control information may allow a base station to perform some processing related to transmissions for a transmission time interval (TTI) prior to the start of the TTI, and allow the base station to perform some processing for the TTI after the start of the TTI.

公开(公告)号：US20170164397A1

公开(公告)日：2017-06-08

申请号：US15274738

申请日：2016-09-23

Applicant: QUALCOMM Incorporated

Inventor： Wei Zeng ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  Peter Pui Lok Ang ,  Jing Jiang ,  Tao Luo ,  Naga Bhushan ,  John Edward Smee

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04L5/14

CPC classification number: H04W72/1278 ,  H04L1/1854 ,  H04L1/1864 ,  H04L5/0055 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/1273

Abstract: Various aspects of the disclosure provide for apparatus, methods, and software for implementing a time division duplex (TDD) wireless communication system that can utilize configurable delays to relax data processing timelines when needed. By implementing these configurable delays, very high data rates may be accommodated at the same time as lower data rates for devices that may have reduced or lesser processing capabilities.