Granted Patent B2

US 12,289,743 · App. 18/057,729 · Granted Apr 29, 2025

Inventors: Dariush Mohammad Soleymani (Erlangen, DE); Martin Leyh (Erlangen, DE); Elke Roth-Mandutz (Erlangen, DE); Shubhangi Bhadauria (Erlangen, DE); Mehdi Harounabadi (Erlangen, DE); Dietmar Lipka (Erlangen, DE); Bernhard Niemann (Erlangen, DE); Amany Abdelkader Ahmed Abdou Mohamed (Erlangen, DE)

Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

H04W72/40H04W72/02H04W72/1263H04W72/52H04W4/46H04W74/0808

Abstract

Claims (55)

1. A method for sharing resources between at least two transceivers of a wireless communication system, at least a first transceiver and a second transceiver of the at least two transceivers operating in a NR sidelink mode 2, in which resources for a sidelink communication over a sidelink are scheduled autonomously, the method comprising:

reporting, by a first transceiver of the at least two transceivers, a set of resources to the second transceiver by transmitting an information describing the set of resources,

determining, by the second transceiver, a set of candidate resources out of the resources of the sidelink taking into account the set of resources reported by the first transceiver,

performing, by the second transceiver, a sidelink transmission using selected resources selected out of the set of candidate resources,

wherein the set of resources is determined at the first transceiver,

wherein the set of resources is a set of not preferred resources which is not preferred for the sidelink transmission of the second transceiver,

transmitting, with the second transceiver, a first reservation information indicating a reservation of one or more selected resources selected by the second transceiver for a first sidelink transmission,

transmitting, with a third transceiver, a second reservation information indicating a reservation of one or more selected resources selected by the third transceiver for a second sidelink transmission,

receiving, with the first transceiver, the first reservation information and the second reservation information and determining whether at least one reserved resource is reserved by both the first reservation information and the second reservation information,

transmitting, with the first transceiver, an assistance information or coordination information to the second transceiver or the third transceiver, wherein the assistance information or coordination information is configured to control the respective transceiver to pre-empt the at least one reserved resource.

2. The method according to claim 1 ,

wherein the information describing the set of resources is one out of

the set of resources itself,

a sensing information, and

a resource map.

3. The method according to claim 1 ,

wherein the set of resources reported from the first transceiver to the second transceiver comprises a set of resources selected by the first transceiver in dependence on a selection criterion.

4. The method according to claim 1 ,

wherein the information describing the set of resources is transmitted from the first transceiver to the second transceiver via

a physical layer, or

a higher layer.

5. The method according to claim 1 ,

wherein the set of resources indicated by the information js determined by the first transceiver by monitoring a number of resource pools in a bandwidth part,

wherein the number of monitored resource pools is adaptively adjusted in dependence on a power consumption criterion.

6. The method according to claim 5 ,

wherein the method further comprises transmitting from the first transceiver to the second transceiver or another transceiver of the wireless communication system an information describing the resource pools of the bandwidth part that are monitored by the first transceiver.

7. The method according to claim 6 ,

wherein the information is transmitted via a second stage SCI format or a PC5-RRC message.

8. The method according to claim 1 ,

wherein the method further comprises transmitting a contextual information from the first transceiver to the second transceiver, wherein the contextual information describes at least one out of

a set of preferred resources, and

a set of not preferred resources.

9. The method according to claim 8 ,

wherein the sidelink transmission is performed by the second transceiver using selected resources selected out of the set of candidate resources based on the set of preferred resources and/or the set of not preferred resources.

10. The method according to claim 8 ,

wherein the contextual information is transmitted via a second SCI format indicated by a first SCI.

11. The method according to claim 9 ,

wherein, in case that the contextual information describes a set of not preferred resources, the set of not preferred resources may be excluded from the set of candidate resources.

12. The method according to claim 1 ,

wherein the first reservation information and the second reservation information are transmitted in a same slot.

13. A first transceiver of a wireless communication system,

wherein the first transceiver is configured to operate in a NR sidelink mode 2, in which resources for a sidelink communication over a sidelink are scheduled autonomously by the first transceiver,

wherein the first transceiver is configured to determine a set of resources and to report the set of resources to a second transceiver of the wireless communication system,

wherein the set of resources is a set of not preferred resources which is not preferred for a sidelink transmission of the second transceiver,

wherein the first transceiver is configured to receive from the second transceiver a first reservation information indicating a reservation of one or more selected resources selected by the second transceiver for a first sidelink transmission,

wherein the first transceiver is configured to receive from a third transceiver a second reservation information indicating a reservation of one or more selected resources selected by the third transceiver for a second sidelink transmission,

wherein the first transceiver is configured to transmit, in case that the first reservation information and the second reservation information indicate that at least one reserved resource is reserved by both the first reservation information and the second reservation information, an assistance information or coordination information to the second transceiver or the third transceiver, wherein the assistance information or coordination information is configured to control the respective transceiver to pre-empt the at least one reserved resource.

14. A second transceiver of a wireless communication system,

wherein the second transceiver is configured to operate in a NR sidelink mode 2, in which resources for a sidelink communication over a sidelink are scheduled autonomously by the second transceiver,

wherein the second transceiver is configured to receive from a first transceiver of the wireless communication system an information describing a set of resources,

wherein the set of resources is determined at the first transceiver,

wherein the set of resources is a set of not preferred resources which is not preferred for a sidelink transmission of the second transceiver,

wherein the second transceiver is configured to transmit a reservation information indicating a reservation of one or more selected resources selected by the second transceiver for a sidelink transmission,

wherein the second transceiver is configured to receive from the first transceiver an assistance information or coordination information, wherein the assistance information or the coordination information is transmitted by the first transceiver in case that the first reservation information of the second transceiver and a second reservation information of a third transceiver indicate that at least one reserved resource is reserved by both the first reservation information and the second reservation information, the second reservation information indicating a reservation of one or more selected resources selected by the third transceiver for a second sidelink transmission,

wherein the second transceiver is configured to pre-empt the at least one reserved resource based on the assistance information or coordination information.

Assignments (1)

Priority Claims (2)

Continuity (2)

References Cited (30)