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公开(公告)号：US11689900B2
公开(公告)日：2023-06-27
申请号：US17330715
申请日：2021-05-26
Applicant: Texas Instruments Incorporated
Inventor： Alper Sinan Akyurek , Ariton E. Xhafa , Jianwei Zhou , Ramanuja Vedantham
IPC: H04W4/18 , H04L61/103 , H04W84/18 , H04L101/659 , H04L101/672 , H04L101/681 , H04L101/604
CPC classification number: H04W4/18 , H04L61/103 , H04L2101/604 , H04L2101/659 , H04L2101/672 , H04L2101/681 , H04W84/18
Abstract: A method for managing Internet Protocol Version 6 (IPv6) addresses in a wireless sensor network is provided that includes storing, on a wireless sensor device in the wireless sensor network, a prefix of an IPv6 address in association with a key, forming an address indicator for the IPv6 address, the address indicator consisting of the key and a node address of the IPv6 address, and storing the address indicator in at least one memory location on the wireless sensor device in lieu of the IPv6 address.
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公开(公告)号：US20230012741A1
公开(公告)日：2023-01-19
申请号：US17933245
申请日：2022-09-19
Applicant: Texas Instruments Incorporated
Inventor： Wonsoo Kim , Il Han Kim , Jianwei Zhou
IPC: H04W72/00 , H04W72/12 , H04L67/1097
Abstract: A selected network element is arranged for distributed transmission resource allocation conflict reduction. The selected network element receives a transmission from one of a first other network element and a second other network element and identifies at least one transmission resource indicated by the received transmission as being reserved by the first other network element and the second other network element. The selected network element stores an indication of each of the at least one identified transmission resource. In response to reading the stored indications, the selected network element selects a different transmission resource that is different from the transmission resource indicated by the stored indications. The selected network element transmits a transmission from the selected network element using the selected different transmission resource.
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公开(公告)号：US11528653B2
公开(公告)日：2022-12-13
申请号：US16864405
申请日：2020-05-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ariton E. Xhafa , Jianwei Zhou , Xiaolin Lu
IPC: H04W40/24 , H04L45/02 , H04W84/18 , H04B1/7156 , H04W84/20
Abstract: A network includes at least one node to communicate with at least one other node via a wireless network protocol. The node includes a network configuration module to periodically switch a current node function of the node between an intermediate node function and a leaf node function. The switch of the current node function enables automatic reconfiguration of the wireless network based on detected communications between the at least one node and at least one intermediate node or at least one leaf node via the wireless network protocol.
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公开(公告)号：US11197222B2
公开(公告)日：2021-12-07
申请号：US15703668
申请日：2017-09-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ariton Xhafa , Jianwei Zhou , Xiaolin Lu , Il Han Kim , Kaichien Tsai
IPC: H04W40/02 , H04W74/08 , H04W36/00 , H04W72/04 , H04L12/931 , H04W8/26 , H04W72/00 , H04L12/18 , H04W92/20 , H04W76/15 , H04W84/18
Abstract: A network includes a mobile network node (MNN) that includes a mobile node communications manager (MNCM) to facilitate wireless communications to a plurality of stationary network nodes (SNNs) in a wireless network via a wireless network protocol. The MNCM utilizes a multicast address received over the wireless network. The multicast address is assigned to a predetermined network time slot to communicate uplink data from the MNN to the SNNs. The MNN receives downlink data via a separate predetermined network address and time slot assigned to a given SNN.
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公开(公告)号：US20210281985A1
公开(公告)日：2021-09-09
申请号：US17330715
申请日：2021-05-26
Applicant: Texas Instruments Incorporated
Inventor： Alper Sinan Akyurek , Ariton E. Xhafa , Jianwei Zhou , Ramanuja Vedantham
Abstract: A method for managing Internet Protocol Version 6 (IPv6) addresses in a wireless sensor network is provided that includes storing, on a wireless sensor device in the wireless sensor network, a prefix of an IPv6 address in association with a key, forming an address indicator for the IPv6 address, the address indicator consisting of the key and a node address of the IPv6 address, and storing the address indicator in at least one memory location on the wireless sensor device in lieu of the IPv6 address.
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Patent Agency Ranking
公开(公告)号：US20200280339A1
公开(公告)日：2020-09-03
申请号：US16877062
申请日：2020-05-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Jyotirmoy Banik , II Han Kim , Jianwei Zhou , Xiaolin Lu
IPC: H04B1/7143
Abstract: A method of generating a channel hopping sequence for a link in a wireless sensor network includes receiving performance quality data for respective frequency channels of frequency channels in the link in a monitoring system, determining a channel quality indicator (CQI) by the monitoring system for each frequency channel based on the respective performance quality data, and determining a repetition factor by the monitoring system for each frequency channel based on the respective CQI. A repetition factor for a frequency channel indicates a number of times the frequency channel is repeated in the channel hopping sequence.
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公开(公告)号：US20200260360A1
公开(公告)日：2020-08-13
申请号：US16864405
申请日：2020-05-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ariton E. Xhafa , Jianwei Zhou , Xiaolin Lu
IPC: H04W40/24
Abstract: A network includes at least one node to communicate with at least one other node via a wireless network protocol. The node includes a network configuration module to periodically switch a current node function of the node between an intermediate node function and a leaf node function. The switch of the current node function enables automatic reconfiguration of the wireless network based on detected communications between the at least one node and at least one intermediate node or at least one leaf node via the wireless network protocol.
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公开(公告)号：US10536891B1
公开(公告)日：2020-01-14
申请号：US16024336
申请日：2018-06-29
Applicant: Texas Instruments Incorporated
Inventor： Ariton E. Xhafa , Jianwei Zhou
Abstract: A method for operating a node in a wireless network is provided that includes computing an estimated time drift between the node and a parent node of the node, and using the estimated time drift and a number of hops between the node and a root node of the wireless network to determine a keep alive period for the node.
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公开(公告)号：US10129725B2
公开(公告)日：2018-11-13
申请号：US15458876
申请日：2017-03-27
Applicant: Texas Instruments Incorporated
Inventor： Ariton E. Xhafa , Jianwei Zhou , Arvind Kandhalu Raghu , Ryan Nuzzaci
Abstract: A method of transmitting association requests in a wireless sensor network includes transmitting an association request from a leaf node to an intermediate node. The method further includes transmitting the association request from the intermediate node during one of either a shared time slot or a dedicated time slot in response to at least one of the timing of dedicated time slots and data collision rates during shared time slots.
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公开(公告)号：US09614580B2
公开(公告)日：2017-04-04
申请号：US14993552
申请日：2016-01-12
Applicant: Texas Instruments Incorporated
Inventor： Chao-Fang Shih , Ariton E. Xhafa , Jianwei Zhou
IPC: H04B1/00 , H04B1/7143
CPC classification number: H04B1/7143
Abstract: Disclosed examples include methods and network devices for communicating in a wireless network, in which the device generates frequency hopping sequence y(j) having a prime number sequence length p, using cyclotomic classes in a field of p or using a baby-step giant-step algorithm, where y(0)=p−1 and the remaining sequence values y(j)=logα(j) mod (p−1). In certain examples, α=2 and the sequence is generated without solving logarithms using one or more algorithms to conserve memory and processing complexity for low power wireless sensors or other IEEE 802.15.4e based networks using Time-Slotted Channel Hopping (TSCH) communications.
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