CN-122029759-A - Ground-assisted non-terrestrial uplink path switching

Abstract

A zone timing advance value corresponding to a zone associated with a non-terrestrial network node may be determined. A ground network node facilitating delivery of traffic regarding a user device may determine to offload portions of the traffic for delivery via a non-ground network node. The terrestrial node may request the regional timing advance value from the core network or from a non-terrestrial node and may send a path switch request message including the regional timing advance value to the user equipment. The path switch request message may indicate a traffic flow for which traffic is to be offloaded to a non-terrestrial node and may include an indication of uplink resources corresponding to the non-terrestrial node that are usable by the user equipment to send offloaded uplink traffic to the non-terrestrial node.

Inventors

• A. Esway

Assignees

• 戴尔产品有限公司

Dates

Publication Date

20260512

Application Date

20240131

Priority Date

20231024

Claims (20)

1. 1.A method, comprising: Facilitating, by a wireless network node comprising at least one processor, receipt of a region timing advance indication from a network entity, the region timing advance indication indicating a region timing advance value associated with a non-terrestrial geographic region corresponding to a non-terrestrial network node; Facilitating, by the wireless network node, terrestrial delivery of at least one traffic flow associated with a user device in accordance with at least one terrestrial resource corresponding to the wireless network node; facilitating, by the wireless network node, determining to offload delivery of the at least one traffic flow to deliver the at least one traffic flow in accordance with at least one non-terrestrial resource corresponding to the non-terrestrial network node, and -Facilitating, by the radio network node, transmission of at least one path switch information element to the user equipment, the at least one path switch information element comprising the region timing advance indication, the region timing advance indication being usable by the user equipment to facilitate the non-terrestrial delivery of the at least one traffic flow according to the at least one non-terrestrial resource via the non-terrestrial network node.
2. 2. The method of claim 1, wherein the at least one traffic flow corresponds to at least one QoS criterion, the method further comprising: Determining by the radio network node that the at least one non-terrestrial resource corresponds to the satisfaction of the at least one QoS criterion, Wherein determining to offload the delivery of the at least one traffic flow is based on the at least one non-terrestrial resource being determined to correspond to the satisfaction of the at least one QoS criterion.
3. 3. The method of claim 1, wherein a ground coverage area corresponding to the wireless network node geographically overlaps with the non-ground geographic area.
4. 4. The method of claim 1, wherein the at least one path switch information element further comprises at least one non-terrestrial resource indication indicating the at least one non-terrestrial resource.
5. 5. The method of claim 1, wherein the at least one path switch information element further comprises a non-terrestrial network node identifier corresponding to the non-terrestrial network node.
6. 6. The method of claim 1, wherein the network entity is part of a core network.
7. 7. The method of claim 1, wherein the network entity comprises the non-terrestrial network node.
8. 8. The method of claim 1, wherein the non-terrestrial network node comprises a satellite.
9. 9. The method of claim 1, further comprising obtaining, by the radio network node, a regional timing advance value that has been determined to preclude transmission of signals between the user equipment and the non-terrestrial network node.
10. 10. The method of claim 1, wherein the user equipment is a first user equipment, the method further comprising obtaining, by the radio network node, the region timing advance value having been determined based on at least one measurement value corresponding to a second user equipment.
11. 11. The method of claim 1, wherein the user equipment is a first user equipment, the method further comprising obtaining, by the radio network node, the region timing advance value having been determined based on application of a defined function to a measured timing advance value, the measured timing advance value corresponding to a user equipment other than the first user equipment.
12. 12. The method of claim 1, wherein a region perimeter defines the non-ground-based geographic region, wherein the region perimeter comprises a first location and a second location, wherein the first location and the second location are separated by a maximum separation distance corresponding to the region perimeter, and wherein a first timing advance corresponding to the first location and a second timing advance corresponding to the second location do not deviate by more than a minimum schedule time unit.
13. 13. A radio access network node, comprising: a processor configured to process executable instructions that, when executed by the processor, facilitate performance of operations comprising: Transmitting a regional timing advance information request to at least one network entity; Receiving, from at least one of the at least one network entity, zone timing advance information in response to sending the zone timing advance information request, the zone timing advance information including at least one zone timing advance indication indicating a zone timing advance value associated with a non-terrestrial geographic area corresponding to a non-terrestrial network node; delivering, on the ground, at least one traffic flow associated with a user equipment according to at least one ground resource scheduled by the radio access network node; Determining to offload delivery of the at least one traffic flow to deliver the at least one traffic flow based on at least one non-terrestrial resource corresponding to the non-terrestrial network node, and A path switch information message is sent to the user equipment, the path switch information message comprising the zone timing advance value usable by the user equipment to facilitate the non-terrestrial delivery of the at least one traffic flow according to the at least one non-terrestrial resource via the non-terrestrial network node.
14. 14. The radio access network node of claim 13, wherein the regional timing advance information request comprises a region identifier corresponding to the non-terrestrial geographic region.
15. 15. The radio access network node of claim 14, wherein the at least one network entity determines the region timing advance value corresponding to the non-terrestrial geographic region associated with the region identifier.
16. 16. The radio access network node according to claim 13, wherein the at least one non-terrestrial resource is scheduled by the radio access network node, and wherein the at least one non-terrestrial resource is operable to transmit uplink traffic corresponding to the at least one traffic flow to the non-terrestrial network node.
17. 17. A non-transitory machine-readable medium comprising executable instructions that, when executed by a processor of a wireless network node, facilitate performance of operations comprising: Transmitting a regional timing advance information request to a network entity; receiving, from the network entity, zone timing advance information in response to sending the zone timing advance information request, the zone timing advance information including at least one zone timing advance value associated with a satellite coverage area corresponding to a satellite node; receiving uplink traffic directed to the radio network node and corresponding to traffic flows associated with user equipment according to at least one terrestrial resource scheduled by the radio network node; Determining to request the user equipment to transmit the uplink traffic via the satellite node according to at least one non-terrestrial uplink resource, and Transmitting a path switch information message to the user equipment, the path switch information message comprising the regional timing advance value usable by the user equipment to facilitate non-terrestrial transmission of the uplink traffic via the satellite node in accordance with the at least one non-terrestrial resource.
18. 18. The non-transitory machine readable medium of claim 17, wherein the satellite node excludes a non-ground node gateway.
19. 19. The non-transitory machine-readable medium of claim 17, the operations further comprising: the at least one non-terrestrial resource is scheduled, Wherein the path switch information message comprises at least one non-terrestrial uplink resource indication indicating the at least one non-terrestrial uplink resource that can be used by the user equipment to transmit the uplink traffic directed to the wireless network node via the satellite node, and wherein the path switch information message comprises a satellite node identifier indicating the satellite node.
20. 20. The non-transitory machine-readable medium of claim 17, wherein the uplink traffic corresponds to at least one QoS criterion, the operations further comprising: determining that the congestion value corresponds to the at least one terrestrial resource that violates the congestion criterion to obtain a determined congestion value, and Responsive to the determined congestion value being determined to correspond to the violation of the congestion criterion, determining that the at least one non-terrestrial resource corresponds to the satisfaction of the at least one QoS criterion, Wherein the wireless network node determines to request the user equipment to transmit the uplink traffic via the satellite node according to the at least one non-terrestrial uplink resource based on the at least one non-terrestrial resource being determined to correspond to the satisfaction of the at least one QoS criterion.

Description

Ground-assisted non-terrestrial uplink path switching RELATED APPLICATIONS The present application claims priority from U.S. NON-provisional patent application Ser. No. 18/493,711 entitled, "TERRESTRIAL-ASSISTED NON-TERRESREIAL UPLINK PATH SWITCH (ground ASSISTED NON-ground uplink path switching)" filed on month 24 of 2023, the entire contents of which are incorporated herein by reference. Background The term 'new air interface' (NR) associated with the fifth generation mobile wireless communication system ("5G") refers to a technical aspect used in a wireless radio access network ("RAN") that includes several quality of service classes ("QoS"), including ultra-reliable and low latency communications ("URLLC"), enhanced mobile broadband ("eMBB"), and large-scale machine type communications ("mMTC"). The URLLC QoS category is associated with stringent latency requirements (e.g., low latency or low signal/message latency) and high reliability of wireless performance, while conventional eMBB use cases may be associated with high capacity wireless communications, which may allow for less stringent latency requirements (e.g., higher latency than URLLC) and less reliable wireless performance than URLLC. Performance requirements for mMTC may be lower than eMBB use case. Some use case applications involving mobile devices or mobile user devices (such as smartphones, wireless tablets, smartwatches, etc.) may impose varying loads or demands on a given RAN resource. The RAN node may activate a network energy saving mode to reduce power consumption at the RAN node or a non-terrestrial wireless node. Disclosure of Invention The following presents a simplified summary of the disclosed subject matter in order to provide a basic understanding of some of the various embodiments. This summary is not an extensive overview of the various embodiments. It is intended to neither identify key or critical elements of the various embodiments nor delineate the scope of the various embodiments. Its sole purpose is to present some concepts of the disclosure in a simplified form as a prelude to the more detailed description that is presented later. In an example embodiment, a method may include facilitating, by a wireless network node including at least one processor, receiving a region timing advance indication from a network entity, the region timing advance indication indicating a region timing advance value associated with a non-terrestrial geographic region corresponding to a non-terrestrial network node. The method may include facilitating, by the wireless network node, terrestrial delivery of at least one traffic flow associated with the user equipment based on at least one terrestrial resource corresponding to the wireless network node. The method may also include facilitating, by the wireless network node, determining to offload delivery of the at least one traffic flow to deliver the at least one traffic flow in accordance with the at least one non-terrestrial resource corresponding to the non-terrestrial network node. The method may also include facilitating, by the wireless network node, transmission of at least one path switch information element to the user equipment, the path switch information element including a region timing advance indication usable by the user equipment to facilitate non-terrestrial delivery of at least one traffic flow according to at least one non-terrestrial resource via the non-terrestrial network node. In an embodiment, at least one traffic flow may correspond to at least one QoS criterion. The method may also include determining, by the radio network node, that the at least one non-terrestrial resource corresponds to satisfaction of the at least one QoS criterion. The determining to offload delivery of the at least one traffic flow may be determined to correspond to meeting at least one QoS criterion based on the at least one non-terrestrial resource. In an embodiment, the ground coverage area corresponding to the wireless network node may geographically overlap with a non-ground geographical area. In an embodiment, the at least one path switch information element may further comprise at least one non-terrestrial resource indication indicating at least one non-terrestrial resource. In an embodiment, the at least one path switch information element may further comprise a non-terrestrial network node identifier corresponding to the non-terrestrial network node. In an embodiment, the network entity may be part of a core network. In an embodiment, the network entity may comprise a non-terrestrial network node. In an embodiment, the non-terrestrial network node may comprise a satellite. In an embodiment, the method may further comprise obtaining, by the radio network node, a zone timing advance value that has been determined to exclude the transmission of signals between the user equipment and the non-terrestrial network node. In an embodiment, the user equipment may be a first user equipment. The m