公开(公告)号：US10516614B2

公开(公告)日：2019-12-24

申请号：US14469111

申请日：2014-08-26

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Sameer Vermani

IPC: H04L12/801 ,  H04N7/173 ,  H04L1/18 ,  H04W72/12 ,  H04W74/04 ,  H04L12/927 ,  H04L1/00 ,  H04L12/911 ,  H04L12/851 ,  H04B7/26 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0452 ,  H04W52/14 ,  H04W74/00 ,  H04W74/08 ,  H04L1/16 ,  H04W28/24 ,  H04W52/50 ,  H04W28/06

Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting a quality of service (QoS) message to a device. The QoS message includes a request for a transmission opportunity for sending uplink data to the device. The QoS message includes at least one of a sequence control field or a QoS control field. The method further includes receiving a clear to transmit (CTX) message in response to the QoS message. The method further includes transmitting data to the device in response to the CTX message.

公开(公告)号：US10454538B2

公开(公告)日：2019-10-22

申请号：US16125654

申请日：2018-09-07

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian ,  Lochan Verma ,  Jialing Li Chen ,  Lin Yang

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/024 ,  H04L5/00

Abstract: One aspect includes a method of establishing, via a first access point, a distributed MIMO joint transmission opportunity with one or more second access points to one or more stations. The method comprises generating, via a processor, a first message for transmission to the stations and the second access points. The first message indicates a null data packet transmission and the stations configured to receive a stream during the joint transmission opportunity. The method also comprises transmitting the first message to the second access points and the stations. The method further comprises generating, via the processor, a reference phase signal for transmission to the second access points.

公开(公告)号：US10412718B2

公开(公告)日：2019-09-10

申请号：US15387364

申请日：2016-12-21

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Bin Tian ,  Lochan Verma ,  Sameer Vermani

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04L12/24 ,  H04B7/0452 ,  H04W84/12 ,  H04W74/00

Abstract: Methods, apparatuses, and computer readable media for resource allocation signaling in a high efficiency wireless local area network (WLAN) are disclosed. A receiver may receive, at a first station, a transmission frame that includes a WLAN signaling field decodable by a plurality of stations. The receiver may identify, in a station-specific portion of the WLAN signaling field, an order for a plurality of station-specific information blocks associated with the plurality of stations. The receiver may determine a number of spatial streams allocated to the first station based at least in part on the identified order for the plurality of station-specific information blocks.

公开(公告)号：US20190253296A1

公开(公告)日：2019-08-15

申请号：US16274122

申请日：2019-02-12

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Bin Tian ,  Lin Yang ,  Sameer Vermani ,  Lochan Verma ,  Youhan Kim ,  Stephen Jay Shellhammer

IPC: H04L27/26 ,  H04L12/24 ,  H04W72/04

CPC classification number: H04L27/2626 ,  H04L27/2605 ,  H04L41/0896 ,  H04W72/0453 ,  H04W84/12

Abstract: Methods and apparatuses are disclosed for communicating over a wireless communication network. One such apparatus may include a memory and a processor configured to identify a transmission mode for a transmission of a signal; select a tone plan for transmission of the signal within a 320 MHz total channel bandwidth or a 240 MHz total channel bandwidth, where the tone plan includes a 256 point tone plan, 512 point tone plan, 1024 point tone plane, 2048 point tone plan, 4096 point tone plan, and where the tone plan is selected based on the transmission mode; generate the signal according to the tone plan; and transmit the signal over the 320 MHz total channel bandwidth or over the 240 MHz total channel bandwidth. The selected tone plan may include one or more duplicates of an IEEE 802.11ax 80 MHz (HE80) tone plan which may include one or more null space 26 tone resource units.

公开(公告)号：US20190124556A1

公开(公告)日：2019-04-25

申请号：US16162804

申请日：2018-10-17

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Bin Tian ,  Sameer Vermani ,  Lin Yang ,  Jialing Li Chen ,  George Cherian

IPC: H04W28/26 ,  H04W72/04 ,  H04W88/10

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for multiplexing clients of different generations in trigger-based transmissions, including trigger-based transmissions in extremely-high throughput (EHT) Wi-Fi systems. An access point (AP) may generate a trigger frame compatible with two types of stations (STAs), such as EHT STAs and legacy (or high efficiency (HE)) STAs. The AP may transmit the trigger frame to a group of STAs, where legacy STAs may process the trigger frame a legacy trigger frame. EHT STAs may process the trigger frame to determine resource unit (RU) allocations for uplink transmissions in a bandwidth greater than a legacy bandwidth. An EHT STA may determine the resources in the larger bandwidth based on an EHT RU allocation table, a legacy RU allocation table and an additional bit in the trigger frame, or an ordering of RU allocations in the trigger frame.

公开(公告)号：US20190116545A1

公开(公告)日：2019-04-18

申请号：US16159313

申请日：2018-10-12

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Bin Tian ,  Sameer Vermani ,  Lin Yang ,  Jialing Li Chen

IPC: H04W48/10 ,  H04W8/00 ,  H04W72/04 ,  H04W8/24

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for techniques for an access point (AP) in a basic service set (BSS) to advertise or indicate 320 MHz bandwidth operation and frequency segment composition in the 320 MHz bandwidth to a station (STA) in a Wireless Local Area Network (WLAN). Also, a WLAN device may advertise or indicate its 320 MHz bandwidth support capability to other WLAN devices in the WLAN.

公开(公告)号：US20190116513A1

公开(公告)日：2019-04-18

申请号：US16160909

申请日：2018-10-15

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Bin Tian ,  Sameer Vermani ,  Lin Yang ,  Jialing Li Chen

IPC: H04W24/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. An access point (AP) may configure a preamble for a wireless transmission to include information indicative of a corresponding extremely high throughput (EHT) packet. In some cases, the preamble may be configured to include a signaling field indicative of the EHT packet. In some cases, symbols or bits of the preamble may be configured to indicate the EHT packet. In yet other cases, a field of the packet may be masked to indicate the EHT packet. A wireless station (STA) may receive the configured preamble, and based on the preamble, may receive (e.g., decode) the EHT packet.

公开(公告)号：US10165551B2

公开(公告)日：2018-12-25

申请号：US15232711

申请日：2016-08-09

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Bin Tian ,  Sameer Vermani

IPC: H04W72/04 ,  H04B7/0452 ,  H04L27/26 ,  H04W84/12

Abstract: A device may signal a resource allocation scheme in a high efficiency wireless local area network (WLAN) preamble. In one example, a high efficiency (HE) WLAN signaling field is used to signal a resource allocation pattern to multiple devices. The HE WLAN signaling field includes a common user field that is decodable by the multiple devices and includes a resource allocation field. The resource allocation indicates resource unit distributions to the multiple devices and indicates which resource units in a multi-user PPDU correspond to multi-user MIMO transmissions and which resource units correspond to OFDMA single-user transmissions. The HE WLAN signaling field also includes dedicated user fields that are assigned to certain devices. The order of the dedicated user fields corresponds to the allocated resource units. The HE WLAN signaling field is transmitted with a WLAN preamble to the multiple devices.

公开(公告)号：US10154476B2

公开(公告)日：2018-12-11

申请号：US14843538

申请日：2015-09-02

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Dung Ngoc Doan ,  Bin Tian ,  Sameer Vermani

IPC: H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04W28/20 ,  H04W72/04

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, an apparatus is configured to transmit user data in a first symbol of a first symbol type. The first symbol type has a first symbol duration, a first frequency bandwidth, and a first tone plan. The first tone plan includes a first valid start tone index, a first valid end tone index, and a first set of DC tones. The apparatus is further configured to transmit an LTF in a second symbol of a second symbol type. The second symbol type has a second symbol duration, a second frequency bandwidth, and a second tone plan. The second tone plan includes a second valid start tone index, a second valid end tone index, and a second set of DC tones.

公开(公告)号：US10136358B2

公开(公告)日：2018-11-20

申请号：US15092467

申请日：2016-04-06

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Youhan Kim ,  Vishvabhusan Pati ,  Bin Tian ,  Sameer Vermani

IPC: H04W28/06 ,  H04L1/00 ,  H04L1/16

Abstract: A wireless device may selectively add padding to an end of a data transmission in order to provide adequate time for a receiving device to process the transmitted data and transmit feedback related to the transmitted data. A wireless device may identify a total amount of data capable of being transmitted in a transmission, and determine a number of data bits to be transmitted in the transmission. An amount of padding may be selected based on a proportion of the total amount of data capable of being transmitted and the number of data bits. In some examples, a preamble for a feedback transmission may be transmitted concurrently with processing of the received transmission.