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公开(公告)号：US20200092791A1
公开(公告)日：2020-03-19
申请号：US16093214
申请日：2018-09-18
IPC分类号： H04W40/24 , H04W84/18 , H04W40/12 , H04L12/751
摘要： A method for supporting the establishment of a path for transmitting a message in a mesh network, wherein said message is to be transmitted from a source node in said mesh network to a destination node, via one or more intermediary nodes, in said mesh network. The method comprises the steps of receiving, by an intermediary node in said mesh network, a path discovery message originating from said source node in said mesh network, said path discovery message comprising a path quality parameter, updating, by said intermediary node, said path quality parameter based on a quality of link associated with a node from which said intermediary node received said path discovery message, and broadcasting, by said intermediary node, said path discovery message wherein said broadcasted path discovery message comprises said updated path quality parameter. A complementary method and corresponding node are also presented herein.
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公开(公告)号：US20200084689A1
公开(公告)日：2020-03-12
申请号：US16309569
申请日：2018-11-12
IPC分类号： H04W40/24 , H04W84/20 , H04L12/721 , H04L12/725 , H04W40/28 , H04L12/751
摘要： A method for identifying a critical link in a path between a source node and a destination node in a wireless mesh network, wherein said method comprises the steps of receiving, a forwarding path request, PREQ, message relating to a discovery of a path between said source node and said destination node, determining that further PREQ message relating to the discovery of said path are not received during a predetermined duration, and, triggered by said determination, setting a first critical flag in a discovery table entry associated with said path between said source node and said destination node, and forwarding said received PREQ message to one or more other nodes in said wireless mesh network
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公开(公告)号：US10123367B2
公开(公告)日：2018-11-06
申请号：US14915660
申请日：2016-01-22
IPC分类号： H04W4/00 , H04J3/00 , G08C17/00 , H04L12/26 , H04B7/00 , H04W76/11 , H04W76/27 , H04W8/00 , H04W48/12 , H04W74/08 , H04W4/80 , H04W84/12 , H04W74/00
摘要： The present disclosure relates to an advertising device (310) in a wireless communication network. Embodiments include a method implemented by the advertising device (310) comprising transmitting an advertisement message (340) from the advertising device (310) over a first channel (330). An advertisement message (340) advertises that the advertising device (310) is available to connect with one or more other devices in the wireless communication network (300). The method also comprises, after transmitting the advertisement message (340), receiving at the advertising device (310) a connection request message (360) from a requesting device (320) in the wireless communication network (300) over a second channel (350) different than the first channel (330). A connection request message (360) requests the advertising device to connect with the requesting device. Embodiments also include a requesting device (320) in a wireless communication network and methods implemented by a requesting device (320).
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公开(公告)号：US10972959B2
公开(公告)日：2021-04-06
申请号：US16093214
申请日：2018-09-18
IPC分类号： H04W40/24 , H04L12/751 , H04W40/12 , H04W84/18
摘要： A method for supporting the establishment of a path for transmitting a message in a mesh network, wherein said message is to be transmitted from a source node in said mesh network to a destination node, via one or more intermediary nodes, in said mesh network. The method comprises the steps of receiving, by an intermediary node in said mesh network, a path discovery message originating from said source node in said mesh network, said path discovery message comprising a path quality parameter, updating, by said intermediary node, said path quality parameter based on a quality of link associated with a node from which said intermediary node received said path discovery message, and broadcasting, by said intermediary node, said path discovery message wherein said broadcasted path discovery message comprises said updated path quality parameter. A complementary method and corresponding node are also presented herein.
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公开(公告)号：US10743343B2
公开(公告)日：2020-08-11
申请号：US15777240
申请日：2018-04-12
IPC分类号： H04W74/08 , H04L12/753 , H04L12/939 , H04L12/715 , H04W4/80 , H04W48/10 , H04W84/18
摘要： A method performed by a first network node for reducing the number of colliding transmissions in a mesh network is provided. The first network node and the second network node are configured to use periodic advertising for transmissions in the mesh network. The first network node calculates (402a) a first duration related to a transmission of data of a first size to be transmitted to the second network node. The first network node further calculates (402b) a second duration related to a period of time until a reception or a transmission of data is scheduled for second network node will occur. Based on the first and second duration the first network node decides (403) whether or not to decrease the first size of the transmission to a second size, so that first duration becomes shorter than the second duration. The first network then performs (404) the transmission according to the outcome of the deciding (403).
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公开(公告)号：US10602565B2
公开(公告)日：2020-03-24
申请号：US15741678
申请日：2015-07-10
发明人： Per Skillermark , Pontus Arvidson , Bo Hagerman
摘要： Method performed by a first communication device (511) for performing one or more actions to resolve a state mismatch between the first communication device (511) and a second communication device (512) operating in a communications network (500). The first communication device (511) searches (601, 704) for one or more transmissions from the second communication device (512) that are indicative of a state mismatch between the first communication device (511) and the second communication device (512). Upon detection of the one or more transmissions, the first communication device (511) performs (602, 705) one or more actions to resolve the state mismatch. The performing (602, 705) of the one or more actions is according to one of: a) a current state of the second communication device (512) and b) a transition to a state different from a current state of the first communication device (511).
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公开(公告)号：US20200029360A1
公开(公告)日：2020-01-23
申请号：US15777240
申请日：2018-04-12
摘要： A method performed by a first network node for reducing the number of colliding transmissions in a mesh network is provided. The first network node and the second network node are configured to use periodic advertising for transmissions in the mesh network. The first network node calculates (402a) a first duration related to a transmission of data of a first size to be transmitted to the second network node. The first network node further calculates (402b) a second duration related to a period of time until a reception or a transmission of data is scheduled for second network node will occur. Based on the first and second duration the first network node decides (403) whether or not to decrease the first size of the transmission to a second size, so that first duration becomes shorter than the second duration. The first network then performs (404) the transmission according to the outcome of the deciding (403).
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公开(公告)号：US11246081B2
公开(公告)日：2022-02-08
申请号：US16891473
申请日：2020-06-03
IPC分类号： H04W40/24 , H04W84/20 , H04L12/721 , H04W40/28 , H04L12/751 , H04L12/725 , H04W4/80
摘要： Embodiments include methods, for an intermediate node in a wireless mesh network, to identify a critical link in a path between a source node and a destination node in the wireless mesh network. Such methods include receiving a first message relating to a discovery of a path between the source node and the destination node. Such methods also include forwarding the first message to one or more other nodes in the wireless mesh network based on an entry in a discovery table, stored in the intermediate node, that indicates that the intermediate node is part of a critical link in the path. The first message can be a path request message or a path reply message, and the methods can include various other operations associated with each type of first message. Other embodiments include wireless devices configured to operate as intermediate nodes in accordance with these methods.
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公开(公告)号：US20200296627A1
公开(公告)日：2020-09-17
申请号：US16314739
申请日：2016-07-11
摘要： Embodiments herein relate to a method performed by a radio network node (12) for handling communication of data to a wireless device (10) in a wireless communication network (1). The radio network node (12) determines to transmit data associated with a first radio access technology, RAT, using a second RAT when a criterion is fulfilled, and triggers a transmission of the data to the wireless device (10) using the second RAT.
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10.发明申请公开(公告)号：US20200275459A1
公开(公告)日：2020-08-27
申请号：US16762556
申请日：2018-11-14
摘要： A method by an end node (102) operating in a Mesh communications network (100) is described herein. The end node (102) monitors (601), a first channel, for transmissions of first information from one or more relay nodes (103) operating in the network. The first information indicates transmission, from the one or more relay nodes (103), of second information on a second channel associated with the first channel. The second information indicates transmission, from the one or more relay nodes (103), of third information on a third channel. The third channel is associated with the second channel and the first channel. The end node (102) then determines (603), based on the second information, time periods during which no transmission of the third information is predicted to be performed by the one or more relay nodes (103) on the third channel. The end node (102) then schedules (604) a transmission of fourth information in a fourth channel during the determined time periods.
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