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公开(公告)号：US20180234951A1
公开(公告)日：2018-08-16
申请号：US15724164
申请日：2017-10-03
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar SOMICHETTY , Kapil BHATTAD , Alberto RICO ALVARINO , Xiao feng WANG , Manikandan CHANDRASEKAR
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine to transmit a narrowband physical downlink channel in a subframe in a narrowband TDD frame structure of a plurality of narrowband TDD frame structures for narrowband communications. In addition, the apparatus may determine whether the subframe is a special subframe or a downlink subframe when the narrowband TDD frame structure includes one or more special subframes. Further, the apparatus may determine how to transmit a narrowband physical downlink channel based on the determination whether the subframe is a special subframe or a downlink subframe. Additionally, the apparatus may transmit the narrowband physical downlink channel.
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公开(公告)号：US20180234170A1
公开(公告)日：2018-08-16
申请号：US15706966
申请日：2017-09-18
Applicant: QUALCOMM Incorporated
Inventor： Arvind SRIDHARAN , Kapil BHATTAD , Manikandan CHANDRASEKAR , Gowrisankar SOMICHETTY , Alberto RICO ALVARINO , Xiao feng WANG
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a TDD mode for narrowband communications. The apparatus may determine a TDD frame structure for the narrowband communications from a group of narrowband TDD frame structures. In one aspect, at least one common subframe in each narrowband TDD frame structure in the group of narrowband TDD frame structures may be configured as a downlink subframe. The apparatus may transmit a PSS using the at least one common subframe in the narrowband TDD frame structure determined for the narrowband communications.
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公开(公告)号：US20240260094A1
公开(公告)日：2024-08-01
申请号：US18162670
申请日：2023-01-31
Applicant: QUALCOMM Incorporated
Inventor： Abhijit BHATTACHARYA , Sudheer Manjunath POOJARY , Akshay Kumar BAJPAI , Manikandan CHANDRASEKAR , Raj Kumar KRISHNA KUMAR
IPC: H04W74/08 , H04B17/318 , H04B17/336
CPC classification number: H04W74/085 , H04B17/318 , H04B17/336
Abstract: This disclosure provides methods, devices and systems for clear channel assessment (CCA) for wireless communications in wireless local area networks (WLANs). In some aspects, an access point (AP) may detect an interfering transmission associated with an overlapping basic service set (OBSS). The AP may further transmit, to at least one station (STA), a probe frame soliciting information indicating an interference environment observed by the at least one STA when an interfering transmission fails to satisfy an interference criterion associated with the AP. The AP may further transmit the probe frame to the at least one STA after a backoff period when the interfering transmission satisfies the interference criterion associated with the AP.
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公开(公告)号：US20240146370A1
公开(公告)日：2024-05-02
申请号：US18050847
申请日：2022-10-28
Applicant: QUALCOMM Incorporated
Inventor： Manikandan CHANDRASEKAR , Devangam Kotha KIRANKUMAR , Raj Kumar KRISHNA KUMAR , Rohit KAPOOR
CPC classification number: H04B7/0617 , H04B7/024 , H04W72/0406 , H04W74/0816
Abstract: Certain aspects of the present disclosure provide techniques for handling coordinated beamforming in wireless communications systems. An example method performed by a first access point (AP) generally includes outputting, for transmission to a second AP, at least one of a first indication that the first AP supports spatial reuse of transmission resources or a second indication that the first AP supports asymmetric coordinated beamforming (CBF); and outputting, for transmission, signaling to one or more stations (STAs) supported by the first AP without intent to form nulls directed toward other STAs supported by the second AP.
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公开(公告)号：US20240056238A1
公开(公告)日：2024-02-15
申请号：US17818693
申请日：2022-08-09
Applicant: QUALCOMM Incorporated
Inventor： Manikandan CHANDRASEKAR , Raj Kumar KRISHNA KUMAR , Venkatesh BHAT
CPC classification number: H04L5/0007 , H04W72/0453 , H04L5/0094
Abstract: This disclosure provides methods, devices and systems for communicating over a 60 GHz band and reusing legacy hardware for communication over sub-6 bands. Certain aspects are directed to outputting, for transmission to a second wireless device, a first packet, wherein the first packet is output via a radio frequency (RF) front end defined by a first clock accuracy requirement having an acceptable error rate that is lower than a legacy clock accuracy requirement, and wherein the first packet is output for transmission via a first band. Certain aspects are directed to obtaining, from the second wireless device, a second packet via the first band.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20250056265A1
公开(公告)日：2025-02-13
申请号：US18447168
申请日：2023-08-09
Applicant: QUALCOMM Incorporated
Inventor： Amol SAXENA , Devangam Kotha KIRANKUMAR , Raj Kumar KRISHNA KUMAR , Manikandan CHANDRASEKAR , Abhijit BHATTACHARYA , Srinivas PILLAPPAKKAM , Rohit KAPOOR
Abstract: This disclosure provides methods, components, devices and systems for interference reduction between wireless communication devices of overlapping basic service sets (OBSSs). Some aspects more specifically relate to signaling mechanisms associated with an OBSS channel sounding operation and power control mechanisms associated with OBSS interference mitigation, either or both of which a first access point (AP) associated with a first basic service set (BSS) may leverage as part of a coordinated beamforming scheme with a second AP associated with a second BSS. In accordance with OBSS channel sounding, the first AP may associate a set of sounding packets with one or more parameters indicative of the second BSS such that the sounding packets appear, to OBSS stations (STAs), as in-BSS sounding packets. Additionally, or alternatively, the first AP may employ a power control mechanism according to which the first AP may apply portion-by-portion transmission power control.
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公开(公告)号：US20250047364A1
公开(公告)日：2025-02-06
申请号：US18927585
申请日：2024-10-25
Applicant: QUALCOMM Incorporated
Inventor： Venkatesh BHAT , Manikandan CHANDRASEKAR , Raj Kumar KRISHNA KUMAR
Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for passive beamforming for Wi-Fi. A first wireless device communicating in an active session via a first bandwidth with a second wireless device may use a passive beamforming technique to identify a transmission sector of the second wireless device and/or a receive sector for communications on a second bandwidth, while the first wireless device is in an inactive session state for the second bandwidth. The second wireless device may transmit beacons in the second bandwidth via directional transmission sectors while the first wireless device is in the inactive session state for the second bandwidth. The first wireless device may receive the beacons and may select a transmission sector based on the beacons. The first wireless device may indicate the selected transmission sector to the second wireless device. The first wireless device may select a receive sector based on the beacons.
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公开(公告)号：US20190327735A1
公开(公告)日：2019-10-24
申请号：US16460739
申请日：2019-07-02
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar SOMICHETTY , Kapil BHATTAD , Alberto RICO ALVARINO , Xiao Feng WANG , Manikandan CHANDRASEKAR
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a TDD frame structure of a group of TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.
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公开(公告)号：US20190319698A1
公开(公告)日：2019-10-17
申请号：US16453940
申请日：2019-06-26
Applicant: QUALCOMM Incorporated
Inventor： Arvind SRIDHARAN , Kapil BHATTAD , Manikandan CHANDRASEKAR , Gowrisankar SOMICHETTY , Alberto RICO ALVARINO , Xiao Feng WANG
Abstract: A UE may determine a frame structure for narrowband communications, the frame structure corresponding to one frame structure from a group of TDD frame structures of different downlink and uplink subframe configurations. The UE receives configuration information indicating a first carrier to monitor for a BCH and/or a SIB1. Then, the UE receives a PSS, an SSS, and the BCH and/or the SIB1 using the frame structure determined for the narrowband communications. The first carrier that is used to receive the BCH and/or the SIB1 may be different from a second carrier used to receive one or more of the PSS or the SSS.
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公开(公告)号：US20180234966A1
公开(公告)日：2018-08-16
申请号：US15724068
申请日：2017-10-03
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar SOMICHETTY , Kapil BHATTAD , Alberto RICO ALVARINO , Xiao feng WANG , Manikandan CHANDRASEKAR
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In addition, the apparatus may determine a first set of subframes in the narrowband TDD frame structure used for transmitting a downlink control channel to a UE. In one aspect, a last subframe in the first set of subframes may be subframe n. Further, the apparatus may determine a second set of subframes in the narrowband TDD frame structure used for transmitting a downlink data channel to the UE. In certain aspects, a first subframe in the second set of subframes may be delayed based on k0 number of subframes after the subframe n. In certain other aspects, a last subframe in the second set of subframes may be subframe n+k0+x. Additionally, the apparatus may signal first information associated with the k0 number of subframes to the UE in a first delay field in a DCI transmission.
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