System combination of an asynchronous and a synchronous radio system

Patent metadata

Field	Value
Publication number	US-12225520-B2
Application number	US-202117492073-A
Country	US
Kind code	B2
Filing date	Oct 1, 2021
Priority date	Apr 5, 2019
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

What is describes is a participant of a communication system, the participant being configured to transmit data using a first radio network and a second radio network in a frequency band, the participant being configured to transmit data in the first radio network according to a first time and/or frequency hopping pattern in a first frequency range of the frequency band, the participant being configured to transmit data in the second radio network according to a second time and/or frequency hopping pattern in a second frequency range of the frequency band, wherein the first time and/or frequency hopping pattern and the second time and/or frequency hopping pattern are different, wherein the first frequency range and the second frequency range overlap at least partially.

First claim

The invention claimed is:

1. A participant of a communication system, the participant comprising:
a transceiver,
wherein the transceiver is configured to transmit data using a first radio network and a second radio network in a frequency band,
wherein the transceiver is configured to transmit data in the first radio network according to a first time/frequency hopping pattern in a first frequency range of the frequency band,
wherein the transceiver is configured to transmit data in the second radio network according to a second time/frequency hopping pattern in a second frequency range of the frequency band,
wherein the first time/frequency hopping pattern and the second time/frequency hopping pattern are different,
wherein the first frequency range and the second frequency range overlap at least partially,
wherein the first radio network is an asynchronous radio network in which participants of the communication system are able to transmit data to a base station at any points in time,
wherein the second radio network is a synchronous radio network in which exclusive resources to transmit the data are allocated to the participants,
wherein the transceiver is configured to transmit an asynchronous uplink data transmission to a base station of the communication system using the first radio network and to receive a downlink data transmission from the base station synchronized in time with the transmitted uplink data transmission using the first radio network, the downlink data transmission comprising signaling information,
wherein the transceiver is configured to receive, based on the signaling information, at least one beacon transmitted by the base station using the second radio network to switch to the second radio network,
wherein the signaling information comprise information on a point in time and/or a frequency channel of the at least one beacon.

2. The participant according to claim 1 ,
wherein the transceiver is configured to switch during operation between a first operating mode in which the transceiver transmits data using the first radio network, and a second operating mode in which the transceiver transmits data using the second radio network.

3. The participant according to claim 1 ,
wherein the transceiver is configured to acquire information used for communication in the second radio network, using the first radio network, and/or
wherein the transceiver is configured to acquire information used for communication in the first radio network, using the second radio network.

4. The participant according to claim 1 ,
wherein the transceiver is configured to transmit data to a base station or an other transceiver of the communication system at a first point in time using the first radio network and to transmit data to the base station or the other transceiver at a second point in time using the second radio network.

5. The participant according to claim 1 ,
wherein the transceiver is configured to transmit data using the first radio network and to receive data using the second radio network,
or wherein the transceiver is configured to transmit data using the second radio network and to receive data using the first radio network.

6. The participant according to claim 1 ,
wherein the signaling information comprise information on at least one beacon transmission parameter, the at least one beacon transmission parameter being at least one of:
a time/frequency hopping pattern of the at least one beacon,
a calculation rule for the points in time and/or frequency channels and/or time/frequency hopping patterns of the transmission of the at least one beacon,
a time interval between successive transmissions of the beacon,
a calculation rule for the time intervals between successive transmissions of the beacon,
a cryptographic key for the transmission of the beacon, and
a calculation rule for generating a cryptographic key for the transmission of the at least one beacon.

7. The participant according to claim 1 ,
wherein the transceiver is configured to transmit a new uplink data transmission to the base station using the first radio network upon non-reception of at least one beacon transmitted using the second radio system, and to receive a further downlink data transmission from the base station synchronized in time with the transmitted uplink data transmission using the first radio network, the further downlink data transmission comprising signaling information,
wherein the transceiver is configured to receive again, based on the signaling information, at least one beacon transmitted by the base station using the second radio network to switch again to the second radio network.

8. The participant according to claim 1 ,
wherein the data comprise a data packet, the transceiver being configured to transmit the data packet divided into a plurality of sub-data packets, the plurality of sub-data packets each being shorter than the data packet, the transceiver being configured to transmit the plurality of sub-data packets according to the respective time/frequency hopping pattern.

9. A base station 9 comprising:
a transceiver,
wherein the transceiver is configured to transmit data using a first radio network and a second radio network in a frequency band,
wherein the transceiver is configured to transmit data in the first radio network according to a first time/frequency hopping pattern in a first frequency range of the frequency band,
wherein the transceiver is configured to transmit data in the second radio network according to a second time/frequency hopping pattern in a second frequency range of the frequency band,
wherein the first time/frequency hopping pattern and the second time/frequency hopping pattern are different,
wherein the first frequency range and the second frequency range overlap at least partially,
wherein the first radio network is an asynchronous radio network in which participants of the communication system are able to transmit data to the base station at any points in time,
wherein the second radio network is a synchronous radio network in which the base station allocates exclusive resources to transmit the data to the participants of the communication system,
wherein the transceiver is configured to receive an asynchronous uplink data transmission from a participant of the communication system using the first radio network and to transmit a downlink data transmission to the participant synchronized in time with the received uplink data transmission using the first radio network, the downlink data transmission comprising signaling information on a transmission of at least one beacon,
wherein the transceiver is configured to transmit the at least one beacon for synchronizing participants of the second radio network using the second radio network,
wherein the signaling information comprise information on a point in time and/or a frequency channel of the at least one beacon.

10. The base station according to claim 9 ,
wherein the transceiver is configured to transmit the at least one beacon only when required.

11. The base station according to claim 9 ,
wherein the signaling information comprise information on at least one beacon transmission parameter, the at least one beacon transmission parameter being at least one of:
a time/frequency hopping pattern of the at least one beacon,
a calculation rule for the points in time and/or frequency channels and/or time/frequency hopping patterns of the transmission of the at least one beacon,
a time interval between successive transmissions of the beacon,
a calculation rule for the time intervals between successive transmissions of the beacon,
a cryptographic key for the tran

Assignees

• Fraunhofer Ges Forschung

Inventors

• Kilian Gerd
• Bernhard Josef
• Soller Dominik
• Rohmer Günter
• Nachtrab Frank
• Kneissl Jakob
• Ereth Stefan
• Schlicht Michael

Classifications

• H04W88/06 Primary

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title

• H04B2001/6908

  using time hopping · CPC title

• H04B1/713

  using frequency hopping · CPC title

• H04B1/692

  Hybrid techniques using combinations of two or more spread spectrum techniques · CPC title