# US 2024/0205778 A1 · Methods of Facilitating the Handover of a User Equipment, UE, in a Telecommunication Network from a Base Station to a Relay Node, as well as Corresponding Nodes and Modules > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0205778 A1 - Document ID: US20240205778A1 - Status: Published application - Kind: A1 - Application number: 17/909,923 - Filed: 2020-07-30 - Published: 2024-06-20 - Earliest claimed: 2020-03-12 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (PUBL) - Inventors: Ahmet Serdar TAN; Elham DEHGHAN BIYAR - Web page: https://patentgrep.com/patent/US20240205778A1 ## CPC - H04W 36/0005: {Control or signalling for completing the hand-off} - H04W 36/0061: {of neighbour cell information} - H04W 36/04: Reselecting a cell layer in multi-layered cells - H04W 36/083: {wherein at least one of the access points is a moving node} - H04W 36/22: for handling the traffic - H04W 36/26: by agreed or negotiated communication parameters - H04W 36/304: {due to measured or perceived resources with higher communication quality} - H04W 84/047: {using dedicated repeater stations} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method of facilitating the handover of a User Equipment, UE, in a telecommunication network from a base station to a relay node, which relay node is arranged to relay traffic between serving UE and said base station, wherein said method comprises the steps of receiving, by said relay node, from said base station a request for handing over a UE connected to said base station, determining, by said relay node, that a Quality-of-Service, QoS parameter of said UE is below a QoS threshold, transmitting, by said relay node, to said base station, based on said determining, a handover acknowledgement message thereby facilitating the handover of said CE from said base station to said relay node. ## Claims ### Claim at position 1 -17. (canceled) ### Claim 18 A method of handing over a User Equipment, UE, in a telecommunication network from a base station to a relay node, which relay node is arranged to relay traffic between a UE and said base station, wherein said method comprises the steps of: receiving, by said relay node, from said base station a request for handing over said UE connected to said base station; characterized by the steps of: transmitting, by said relay node, a QoS query request to a QoS Status module for querying whether a QoS parameter of said UE is below a QoS threshold for said relay node; receiving, by said relay node, from said QOS Status module a QoS query acknowledgement thereby acknowledging that said QoS parameter of said UE is below said QoS threshold for said relay node; transmitting, by said relay node, to said base station, based on said QoS query acknowledgement, a handover acknowledgement message thereby acknowledging the handover of said UE from said base station to said relay node. ### Claim 19 (depends on 18) A method in accordance with claim 18, wherein said method further comprises the steps of: receiving, by said relay node, from said UE, a reconfiguration complete message thereby indicating that said UE is handed over from said base station to said relay node; transmitting, by said relay node, to said QoS Status module a UE status update message thereby indicating that said UE is connected to said relay node. ### Claim 20 A method of handing over a User Equipment, UE, in a telecommunication network from a base station to a relay node, which relay node is arranged to relay traffic between a UE and said base station, characterized in that said method comprises the steps of: receiving, by a Quality-of-Service, QoS, status module, from said relay node, a QOS query request for requesting whether a QoS parameter of said UE served by said base station, is below a QoS threshold for said relay node; transmitting, by said QoS status module, to said relay node, a QoS query acknowledgement thereby acknowledging that said QoS parameter of said UE is below said QoS threshold if it is determined that the QoS parameter of said UE is below said QoS threshold. ### Claim 21 (depends on 20) A method in accordance with claim 20, wherein said method further comprises the steps of: determining, by a Quality-of-Service, QoS, Status module, QoS parameters of UE served by said base station; retrieving, by said QoS Status module, from a Location Management Function, LMF, locations of said UE served by said base station; determining, by said QoS status module, a QOS region in which a plurality of UE are located having QoS parameters below a QoS threshold based on said retrieving and determining steps; requesting, by said QoS status module, deployment of a relay node in said QoS region for serving said plurality of UE having QoS parameters below said QoS threshold. ### Claim 22 (depends on 21) A method in accordance with claim 21, wherein said step of determining said QoS region comprises determining a centroid of said QoS region, and wherein said step of requesting comprises requesting deployment of said relay node at said determined centroid. ### Claim 23 (depends on 21) A method in accordance with claim 21, wherein said step of determining said QoS region comprises forecasting future QoS parameters and locations of said UE served by said base station based on previous QoS parameters and previous locations of said UE served by said base station. ### Claim 24 A relay node for facilitating the handover of a User Equipment, UE, in a telecommunication network from a base station to a relay node, which relay node is arranged to relay traffic between a UE and said base station, wherein said relay node comprises: receive equipment arranged for receiving, from said base station a request for handing over said UE connected to said base station; characterized in that the relay node further comprises: transmit equipment arranged for transmitting, to a QoS status module, a Quality of Service, QoS, query request for querying whether a QoS parameter of said UE is below a QoS threshold; said receive equipment being further arranged for receiving, from said QoS status module, a QoS query acknowledgement thereby acknowledging that said QoS parameter of said UE is below said QoS threshold; said transmit equipment being further arranged for transmitting, to said base station, based on said QoS query acknowledgement, a handover acknowledgement message thereby acknowledging the handover of said UE from said base station to said relay node. ### Claim 25 (depends on 24) A relay node in accordance with claim 24, wherein said receive equipment is further arranged for receiving, from said UE, a reconfiguration complete message thereby indicating that said UE is handed over from said base station to said relay node, and wherein said transmit equipment is arranged for transmitting to a QoS Status Module a UE status update message thereby indicating that said UE is connected to said relay node. ### Claim 26 A Quality-of-Service, QoS, status module for handing over a User Equipment, UE, in a telecommunication network from a base station to a relay node, which relay node is arranged to relay traffic between a UE and said base station, characterized in that said QoS status module comprises: receive equipment arranged for receiving, from said relay node, a QoS query request for requesting whether a QoS parameter of said UE served by said base station, is below a QoS threshold for said relay node; transmit equipment arranged for transmitting, to said relay node, a QoS query acknowledgement, thereby acknowledging that said QoS parameter of said UE is below said QoS threshold if it is determined that the QoS parameter of said UE is below said QoS threshold. ### Claim 27 (depends on 26) A QoS status module in accordance with claim 26, wherein said QoS status module further comprises: process equipment arranged for determining QoS parameters of UE served by said base station; retrieve equipment arranged for retrieving, from a Location Management Function, LMF, locations of said UE served by said base station; process equipment arranged for determining a QoS region in which a plurality of UE are located having QoS parameters below a QoS threshold based on said retrieving and determining steps; request equipment arranged for requesting deployment of a relay node in said QOS region for serving said plurality of UE having QoS parameters below said QoS threshold. ### Claim 28 (depends on 27) A QoS status module in accordance with claim 27, wherein said process equipment is further arranged for determining a centroid of said QoS region, and wherein said request equipment is arranged for requesting deployment of said relay node at said determined centroid. ### Claim 29 (depends on 27) A QoS status module in accordance with claim 27, wherein said process equipment is further arranged for forecasting future QoS parameters and locations of said UE served by said base station based on previous QoS parameters and previous locations of said UE served by said base station. ### Claim 30 (depends on 18) Computer program product comprising computer readable medium having instructions stored thereon which, when executed by a relay node, cause said relay node to implement a method in accordance with claim 18. ### Claim 31 (depends on 20) Computer program product comprising computer readable medium having instructions stored thereon which, when executed by a QoS status module, cause said QoS status module to implement a method in accordance with claim 20.