公开(公告)号：US20190007901A1

公开(公告)日：2019-01-03

申请号：US16022586

申请日：2018-06-28

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Yanjun Sun ,  Santosh Paul Abraham ,  Bin Tian

IPC: H04W52/02

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for generating wake-up radio (WUR) frames formats and implementing WUR communications between transmitting and receiving wireless devices. A transmitting wireless device may identify one or more intended receiving wireless devices for which to send a WUR frame. The transmitting wireless device may generate the WUR frame, where the WUR frame has a first portion that includes a first field. The first field may indicate whether the WUR frame is a fixed length frame or a variable length frame. The transmitting wireless device may also determine a frame check sequence (FCS) type for use with a WUR frame for transmission. The FCS portion may be capable of being one of a plurality of FCS types. The transmitting wireless device may transmit the WUR frame to the one or more intended receiving wireless devices.

公开(公告)号：US10128917B2

公开(公告)日：2018-11-13

申请号：US14853872

申请日：2015-09-14

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Lin Yang ,  Jialing Li Chen ,  Sameer Vermani ,  Rahul Tandra ,  Youhan Kim ,  Didier Johannes Richard van Nee

IPC: H04L5/00 ,  H04B7/022 ,  H04L1/06 ,  H04L1/00 ,  H04L27/26 ,  H04W48/12

Abstract: Methods and apparatuses for communicating over a wireless communication network are disclosed herein. One method includes forming a message that includes a plurality of data tones and one or more direct current (DC) protection tones. The method further includes setting a value for a data tone of the plurality of data tones to carry a data portion of the message. The method further includes setting a value for a DC protection tone of the one or more DC protection tones by repeating the value for the data tone as the value for the DC protection tone. The method further includes transmitting the message to one or more wireless communication devices utilizing the plurality of data tones and the one or more DC protection tones.

公开(公告)号：US20180242384A1

公开(公告)日：2018-08-23

申请号：US15893477

申请日：2018-02-09

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Sameer Vermani

IPC: H04W76/15 ,  H04W24/02 ,  H04W74/08

CPC classification number: H04W76/15 ,  H04L5/0098 ,  H04W24/02 ,  H04W74/0808 ,  H04W84/12

Abstract: Methods, systems, and devices for wireless communication are described that provide for bandwidth aggregation for wireless local area network (WLAN) systems. A first device may monitor multiple anchor channels of at least one radio frequency (RF) spectrum band, and receive, from another device, a bandwidth aggregation indication on an anchor channel of the monitored plurality of anchor channels. The first device may then identify based on the received bandwidth aggregation indication, a bandwidth aggregation configuration including a first and second portion of the at least one RF spectrum band to use to receive communications from the other device. A transmitting device may select one of multiple anchor channels, transmit the indication of the bandwidth aggregation configuration to another device using the anchor channel, then transmit communications using the bandwidth aggregation configuration.

公开(公告)号：US20180152333A1

公开(公告)日：2018-05-31

申请号：US15823214

申请日：2017-11-27

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Lin Yang

IPC: H04L27/34 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04L27/34 ,  H04L1/0023 ,  H04L1/0033 ,  H04L1/0056 ,  H04L5/001 ,  H04L27/0008 ,  H04L27/02 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/2643 ,  H04L27/2697 ,  H04L27/30 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: Methods, systems, and devices for wireless communication are described that provide for generating a multicarrier wakeup signal that is modulated using multiple on-off keying (OOK) patterns. In some cases, the OOK pattern may be constructed using one or more of the following techniques: forward error correction (FEC) coding, spreading, encoding (e.g., DC balance encoding such as Manchester encoding), and orthogonal frequency division multiplexing (OFDM) overlay mapping. The resulting signal may serve to increase the sensitivity of the receiver. The OOK patterns may include on portions and off portions that are indicative of different bit values, such as a one bit or a zero bit. The multicarrier wakeup signal may be decoded by a first radio of a wireless device that compares the energy of the signal over different time periods to determine the bit value. Once determined, the wireless device may choose to activate a second radio for communication.

公开(公告)号：US20180145812A1

公开(公告)日：2018-05-24

申请号：US15816560

申请日：2017-11-17

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Sameer Vermani ,  Bin Tian

IPC: H04L5/00

CPC classification number: H04L5/0053 ,  H04B7/0413 ,  H04L1/0025 ,  H04L5/0091 ,  H04L27/261 ,  H04L69/323 ,  H04W84/12

Abstract: Various aspects of the disclosure relate to communication using a data unit that includes at least one mid-amble. In some aspects, an apparatus may use mid-ambles for mobility scenarios (e.g., when the apparatus is moving outdoors). The disclosure relates in some aspects to signaling associated with the use of mid-ambles. In some aspects, an apparatus may signal whether it supports sending and/or receiving data with mid-ambles. In some aspects, an apparatus may signal whether a particular data unit includes at least one mid-amble. In some aspects, an apparatus may signal an indication of at least one mid-amble update interval. In some aspects, an apparatus may signal whether a mid-amble includes a short training field.

公开(公告)号：US09973879B2

公开(公告)日：2018-05-15

申请号：US13685602

申请日：2012-11-26

Applicant: QUALCOMM Incorporated

Inventor： Alok K. Gupta ,  Bin Tian

IPC: H04W52/02 ,  H04W4/00

CPC classification number: H04W4/70 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for managing wireless communications in a machine-to-machine (M2M) wireless Wide Area Network (WAN). A packet is decoded and demodulated by an M2M device that is received during a time slot of a physical layer forward link frame in the M2M wireless WAN. The packet is transmitted by a base station. The M2M device enters a sleep state before a physical layer acknowledgment (ACK) message is transmitted to the base station to indicate receipt of the packet.

公开(公告)号：US20180132176A1

公开(公告)日：2018-05-10

申请号：US15808639

申请日：2017-11-09

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Stephen Jay Shellhammer ,  Linhai He ,  Bin Tian

IPC: H04W52/02 ,  H04L12/26

CPC classification number: H04W52/0212 ,  H04L43/087 ,  H04W52/0235 ,  H04W52/0293 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may identify a jitter pattern for a wakeup message. A station may listen using a wakeup radio for a wakeup message during wakeup listening periods according to the identified jitter pattern. A station may receive a preamble having a first bandwidth and a wakeup message having a second bandwidth. An AP may transmit an identifier key to a station, and the station may determine a rotating identifier associated with the AP based on the received identifier key. The station may receive a wakeup message from the AP, compare a sender identifier with the rotating identifier, and power on a second radio. A station may also receive a wakeup message that includes an indication of which station are to be activated.

公开(公告)号：US20180115952A1

公开(公告)日：2018-04-26

申请号：US15788471

申请日：2017-10-19

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian

IPC: H04W52/02 ,  H04L12/26 ,  H04W64/00

CPC classification number: H04W52/0229 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/16 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0238 ,  H04W64/003 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/1262 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: Techniques are described in this disclosure of a physical layer design for wakeup messages having multiple types of wakeup messages. Such designs may include a standard wakeup message having a first bit duration and a low-sensitivity wakeup message having a second bit duration. During operation, the access point (AP) may select which type of wakeup message to use when communicating with a wireless device or a group of wireless devices. Wakeup intervals during a low-power mode of the wireless device may be adjusted based at least in part on which type of wakeup message is being used. Parameter values for the wakeup messages may be determined based at least in part on proximity of the wireless device relative to the AP.

公开(公告)号：US09930147B2

公开(公告)日：2018-03-27

申请号：US14726348

申请日：2015-05-29

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Simone Merlin ,  George Cherian ,  Gwendolyn Denise Barriac ,  Rahul Tandra ,  Bin Tian

IPC: H04L29/06 ,  H04L5/00 ,  H04W88/10 ,  H04L5/14

CPC classification number: H04L69/14 ,  H04L5/0092 ,  H04L5/1423 ,  H04W88/10

Abstract: An 802.11ac access point (AP) may be capable of communicating with both 802.11n (on 40 MHz band) and 802.11ac devices (on 80 MHz band). While the 802.11ac AP is communicated with 802.11n devices on 40 MHz band, the remaining 40 MHz band is wasted because the 802.11n devices are not capable of communicating on this band. The AP may operate as if it is two virtual APs, one capable of communicating with 802.11n devices on a first primary and a first secondary channels (basic service set 1—BSS1) and the second communicating with 802.11ac devices on a second primary and a second secondary channels (BSS2). Individual beacons may be sent for BSS1 and BSS2. The transmissions on BSS2 may be performed simultaneously with transmissions on BSS1. However, transmission on one channel and receiving on the second channel cannot happen simultaneously.

公开(公告)号：US20180083747A1

公开(公告)日：2018-03-22

申请号：US15270242

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Dung Doan ,  Vinayak Chowdiah ,  Ronald Gibson ,  Balakumar Jayaraman ,  Maksim Krasnyanskiy ,  Bin Tian ,  Rahul Tandra ,  Luiza Timariu ,  Harshit Joshi

IPC: H04L5/00 ,  H04L29/06 ,  H04L12/26

CPC classification number: H04L5/0023 ,  H04B7/0452 ,  H04L27/2646 ,  H04L27/2657 ,  H04L27/2675 ,  H04L2027/0026 ,  H04W84/12

Abstract: Methods, systems, and devices for wireless communication are described including determining one or more unfiltered CFOs, filtering the one or more unfiltered CFOs to identify a refined CFO based at least in part on the one or more unfiltered CFOs and a predetermined number of packets, modifying a transmission parameter based at least in part on the refined CFO, and transmitting a signal in a MU-MIMO environment based at least in part on the modified transmission parameter.