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CN-122002487-A - Apparatus, method and computer program

CN122002487ACN 122002487 ACN122002487 ACN 122002487ACN-122002487-A

Abstract

The present disclosure relates to internet of things devices and in particular provides an apparatus, method and computer program product for managing internet of things devices in a communication system. The internet of things device includes at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the internet of things device to at least perform receiving a first physical reader-to-device channel transmission from a reader that includes first timing information, determining a duration between the first physical reader-to-device channel transmission and a second physical reader-to-device channel transmission based on the first timing information, determining whether the duration is greater than a duration threshold, and switching from an active mode to a sleep mode or an idle mode based on the duration being greater than the duration threshold.

Inventors

  • G. Venkatraman
  • T Weierdesicheke
  • Che Juanshou

Assignees

  • 诺基亚技术有限公司

Dates

Publication Date
20260508
Application Date
20251105
Priority Date
20241107

Claims (20)

  1. 1. An apparatus for communication comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least perform: Receiving a first physical reader-to-device channel transmission from the reader including first timing information; determining a duration between the first physical reader-to-device channel transmission and a second physical reader-to-device channel transmission based on the first timing information; determining whether the duration is greater than a duration threshold, and Switching from the active mode to the sleep mode or the idle mode based on the duration being greater than the duration threshold.
  2. 2. The apparatus of claim 1, wherein the first timing information indicates at least one of a transmission time of the first physical reader-to-device channel transmission or a transmission time of the second physical reader-to-device channel transmission.
  3. 3. The apparatus of claim 1, wherein the first physical reader-to-device channel transmission comprises handoff information indicating a handoff from the active mode to the sleep mode or the idle mode when the duration is greater than the duration threshold.
  4. 4. The apparatus of claim 1, wherein in the active mode, the apparatus is configured to send a physical device-to-reader channel transmission to the reader, and Wherein in the sleep mode or the idle mode, the apparatus is configured to forgo sending a physical device-to-reader channel transmission to the reader.
  5. 5. The apparatus of claim 1, wherein in the sleep mode, the apparatus is configured to at least one of: collecting energy; maintaining the memory; running another clock of the device, the other clock of the device being different from the sampling clock of the device running in the active mode, or The number of ticks of the other clock of the device is counted.
  6. 6. The apparatus of claim 1, wherein in the idle mode, the apparatus is configured to: Energy is collected.
  7. 7. The device of claim 1, wherein the at least one memory stores instructions that, when executed by the at least one processor, cause the device to at least perform: the number of ticks of the other clock of the apparatus is counted upon receipt of the first physical reader-to-device channel transmission.
  8. 8. The device of claim 7, wherein the at least one memory stores instructions that, when executed by the at least one processor, cause the device to at least perform: determining an elapsed time from the first physical reader to device channel transmission based on the counted number of drops of the other clock of the apparatus and a specified frequency of the other sampling clock of the apparatus; determining that an elapsed time from the first physical reader-to-device channel transmission differs from a duration between the first physical reader-to-device channel transmission and the second physical reader-to-device channel transmission by less than a difference threshold; switching from the sleep mode to the active mode, and The second physical reader-to-device channel transmission including the second timing information is received from the reader.
  9. 9. The apparatus of claim 1, wherein at least one of the duration threshold or the variance threshold is received from the reader.
  10. 10. The apparatus of claim 1, wherein at least one of the duration threshold or the variance threshold is predefined.
  11. 11. The apparatus of claim 1, wherein the first timing information is included in control information of the first physical reader-to-device channel transmission.
  12. 12. The device according to claim 1, wherein the first timing information is included in a preamble, a preamble of the first physical reader-to-device channel transmission at least one of a midamble or a postamble or at least one of a preamble, a midamble or a postamble appended to the first physical reader-to-device channel transmission.
  13. 13. The apparatus of claim 1, wherein the apparatus comprises an environmental internet of things device.
  14. 14. The apparatus of any of claims 1 to 13, wherein the reader comprises a user equipment or a base station.
  15. 15. An apparatus for communication comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least perform: A first physical reader-to-device channel transmission including first timing information is sent to an internet of things device.
  16. 16. The apparatus of claim 15, wherein the first timing information indicates at least one of a transmission time of the first physical reader-to-device channel transmission or a transmission time of the second physical reader-to-device channel transmission.
  17. 17. The apparatus of claim 15, wherein the first timing information is included in control information transmitted by the first physical reader-to-device channel.
  18. 18. An apparatus according to claim 15, wherein the first timing information is included in a preamble, a preamble of the first physical reader-to-device channel transmission at least one of a midamble or a postamble or at least one of a preamble, a midamble or a postamble appended to the first physical reader-to-device channel transmission.
  19. 19. The apparatus of claim 15, wherein the internet of things device comprises an environmental internet of things device.
  20. 20. The apparatus of claim 15, wherein the apparatus comprises a reader.

Description

Apparatus, method and computer program Technical Field The present disclosure relates to apparatus, methods, and computer programs for managing internet of things devices (e.g., environmental internet of things devices) in a communication system. Background A communication system may be seen as a facility that enables communication sessions between two or more entities, such as communication devices, base Stations (BSs) and/or other nodes, by providing carriers between the various entities involved in a communication path. The communication system may be a wireless communication system. Examples of wireless systems include Public Land Mobile Networks (PLMNs) operating based on radio standards such as provided by 3GPP, satellite-based communication systems, and different wireless local area networks, such as Wireless Local Area Networks (WLANs). A wireless system may be generally divided into cells and is therefore generally referred to as a cellular system. Communication systems and associated devices typically operate in accordance with a given standard or specification which sets out what the various entities associated with the system are permitted to do and how that should be achieved. Communication protocols and/or parameters which shall be used for the connection are also typically defined. Examples of standards are 4G, 5G or 6G standards. Disclosure of Invention According to one aspect, an apparatus is provided that includes at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least perform receiving a first physical reader-to-device channel transmission from a reader that includes first timing information, receiving a second physical reader-to-device channel transmission from the reader that includes second timing information, determining a duration between the first physical reader-to-device channel transmission and the second physical reader-to-device channel transmission based on at least one of the first timing information or the second timing information, and determining a sampling frequency offset between a sampling clock of the apparatus and a sampling clock of the reader based on the duration. The expressions "sampling frequency offset", "sampling clock error" or "drift" may be used interchangeably. The sampling clock may comprise a real time clock or a crystal oscillator. The first timing information may indicate at least one of a transmission time of a first physical reader to device channel transmission or a transmission time of a second physical reader to device channel transmission, and the second timing information may indicate at least one of a transmission time of a second physical reader to device channel transmission or a transmission time of a third physical reader to device channel transmission. The first timing information may include at least one clock counter value (e.g., a timestamp). The clock counter value may be derived from the sampling clock of the reader. The second timing information may include at least one clock counter value (e.g., a timestamp). The clock counter value may be derived from the sampling clock of the reader. The physical reader-to-device channel transmission may include at least one of a preamble, control information, payload, midamble, or postamble. The preamble may include a synchronization signal. The synchronization signal may include a delimiter (e.g., a start indication) and a clock signal. The clock signal may comprise a square wave signal. The square wave signal may be modulated (e.g., via amplitude shift keying) based on a predetermined sequence (e.g., an m-sequence or gold sequence). As a result, the clock signal may include a set of on and off pulses having rising and falling edges based on a predetermined sequence. The first timing information may be included in control information transmitted by the first physical reader to device channel and the second timing information may be included in control information transmitted by the second physical reader to device channel. The first timing information may be included in or appended to at least one of a preamble, midamble, or postamble of the first physical reader-to-device channel transmission, and the second timing information may be included in or appended to at least one of a preamble, midamble, or postamble of the second physical reader-to-device channel transmission. Determining a sampling frequency offset between a sampling clock of the device and a sampling clock of the reader based on the duration may include determining a sampling frequency offset between the sampling clock of the device and the sampling clock of the reader based on the duration and a counted number of ticks of the sampling clock of the device over the duration. Determining a sampling frequency offset between the sampling clock of the device and the sampling clock of the reader based on the duration and the counted number of t