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公开(公告)号：US20230397036A1
公开(公告)日：2023-12-07
申请号：US18250776
申请日：2021-11-29
Applicant: Kamstrup A/S
Inventor： Flemming HALD , Jeppe HOFNI , Mathias Rønholt KIELGAST , Torben MARKUSSEN
CPC classification number: H04W28/0231 , H04W28/10 , H04L67/12
Abstract: A method provides link management for wireless communication between measuring devices (7), installed to measure or detect a value at a utility installation, and a collection unit (5), collecting data from the measuring devices. Uplink data frames are sent from a measuring device to the data collection unit. Some of the uplink data frames are provide a time-limited access opportunity (AO) for receiving downlink frames from the data collection unit. A counter value (FC) in the measuring device is updated by adjusting the counter value for each non-used or unsuccessfully used access opportunity. An urgency indicator is transmitted to the data collection unit by at least some of the uplink data frames that provide an access opportunity. The urgency indicator depends on the counter value. Downlink frames are sent from the data collection unit to the measuring device according to a prioritization scheme, based on the urgency indicator.
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公开(公告)号：US20160285588A1
公开(公告)日：2016-09-29
申请号：US15037519
申请日：2015-11-21
Applicant: KAMSTRUP A/S
Inventor： Flemming HALD , Rene Rørbye PEDERSEN , Johnny Dørken CHRISTIANSEN , Rasmus Melchior JACOBSEN
CPC classification number: H04L1/0041 , G06Q50/06 , G08C17/02 , H04L1/0002 , H04L1/0033 , H04L1/0045 , H04L1/0057 , H04L1/0084 , H04Q9/00 , H04Q2209/50 , H04Q2209/60
Abstract: The present invention relates to a device and a system for transmitting data messages which can be received by different types of receivers. A device and system are disclosed where data transmissions are based on data messages (2) comprising two parts, a first part (20) being encoded in accordance with a communication protocol, such as the wireless MBus protocol, and a second part (21) which comprises error-correcting information for enabling a receiver device to correct errors in the data message (2), such as parity information related to turbo coding. The first part (20) forms an independent sub data message which can be received independently of the content of the second part (21). The sub data message can be received as is within a first communication range (6), and the entire data message can by virtue of the error correction information, and subsequent error correction, be received within a second longer communication range (7).
Abstract translation: 本发明涉及用于发送可由不同类型的接收机接收的数据消息的装置和系统。 公开了一种设备和系统，其中数据传输基于包括两部分的数据消息（2），第一部分（20）根据诸如无线MBus协议的通信协议进行编码，第二部分（21） 其包括用于使接收机设备能够校正数据消息（2）中的错误的纠错信息，诸如与turbo编码相关的奇偶校验信息。 第一部分（20）形成独立的子数据消息，该消息可独立于第二部分（21）的内容被接收。 可以在第一通信范围（6）内接收子数据消息，并且可以在第二较长的通信范围（7）内接收整个数据消息，借助于纠错信息和随后的纠错。
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公开(公告)号：US20220200749A1
公开(公告)日：2022-06-23
申请号：US17557903
申请日：2021-12-21
Applicant: Kamstrup A/S
Inventor： Flemming HALD , Jeppe HOFNI , Mathias Rønholt KIELGAST , Torben MARKUSSEN
Abstract: A wireless communication link management method includes sending data in a primary uplink data frame from the measuring device (7) to the data collection unit (5) via a primary channel. After sending, the measuring device provides a time-limited primary access opportunity (AO) for receiving a link management downlink frame. A primary signal quality is evaluated. A secondary uplink frame is sent from the measuring device via a secondary channel. A time-limited secondary access opportunity for receiving a link management downlink frame is provided. Secondary signal qualities are evaluated. One among the primary access opportunity and the secondary access opportunities is selected for sending a link management downlink frame from the data collection unit to the measuring device depending on the signal qualities. The associated channel is used as the primary channel for sending data in a primary uplink data frame from the measuring device to the data collection unit.
