# US 2019/0174353 A1 · Dynamic link selection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174353 A1 - Document ID: US20190174353A1 - Status: Published application - Kind: A1 - Application number: 16/325,165 - Filed: 2017-08-14 - Published: 2019-06-06 - Earliest claimed: 2016-08-12 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget Lm Ericsson (Publ) - Inventors: Osman Nuri Can YILMAZ; Stefan WAGER; Riikka SUSITAIVAL - Web page: https://patentgrep.com/patent/US20190174353A1 ## CPC - H04W 28/0278: {using buffer status reports (dynamic wireless traffic scheduling definition H04W72/12)} - H04W 76/15: Setup of multiple wireless link connections - H04W 28/0236: {radio quality, e.g. interference, losses or delay} - H04W 36/00695: {using split of the control plane or user plane} - H04W 36/00698: {using different RATs} - H04W 36/144: {over a different radio air interface technology} - H04W 92/20: between access points - 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 for dynamic link selection that comprises providing at least two wireless links between one or more network nodes and a wireless device. The at least two wireless links associated with at least two different radio access technologies. The method additionally includes obtaining control data to be sent to a first network node of the one or more network nodes. The control data is associated with a first radio access technology. The method additionally includes selecting one or more wireless links from among the at least two wireless links. The one or more links selected based on a first selection parameter. The one or more selected wireless links are to be used for the transmission of the control data to the first network node. The one or more selected wireless links comprise at least a first wireless link associated with a second radio access technology. The method further includes transmitting the control data associated with the first radio access technology to the first network node via at least the first wireless link associated with the second radio access technology. The method also includes obtaining the control data at the first network node and determining whether the received control data is duplicated control data. ## Claims ### Claim 1 A method for dynamic link selection comprising: providing at least two wireless links between one or more network nodes and a wireless device the at least two wireless links associated with at least two different radio access technologies; obtaining control data to be sent to a first network node of the one or more network nodes, the control data associated with a first radio access technology; selecting one or more wireless links from among the at least two wireless links based on a first selection parameter, the selected one or more wireless links to be used for the transmission of the control data to the first network node, the selected one or more wireless links comprising at least a first wireless link associated with a second radio access technology; transmitting the control data associated with the first radio access technology to the first network node via at least the first wireless links associated with the second radio access technology; obtaining the control data at the first network node; and determining whether the received control data is duplicated control data. ### Claim 2 A method for dynamic link selection comprising: obtaining data to be sent to a network node; selecting one or more wireless links to use for the transmission of the data to be sent to the network node, the one or more wireless links selected from a group of at least two available wireless links, the at least two available wireless links associated with at least two different radio access technologies; and transmitting the data to the network node via the selected one or more wireless links. ### Claim 3 (depends on 2) The method of claim 2, wherein: the data to be sent comprises control data for a first wireless link of the at least two available wireless links, the first wireless link is associated with a first radio access technology; and transmitting the data to the network node comprises transmitting the control data via at least a second wireless link of the at least two available wireless links, the second wireless link is associated with a second radio access technology different than the first radio access technology. ### Claim 4 (depends on 2) The method of claim 2, further comprising, upon selecting at least two wireless links from the group of at least two available wireless links: replicating the data to be transmitted; transmitting the replicated data to the network node via the at least two selected wireless links, the at least two selected wireless links conveying the same data via different radio access technologies; wherein the data transmitted on at least one of the selected wireless links is transmitted to the network node via a second network node. ### Claim 5 (depends on 2) The method of claim 2, wherein selecting one or more wireless links to use for the transmission of the data comprises evaluating a link quality associated with each of the wireless links of the group of at least two available wireless links. ### Claim 6 (depends on 2) The method of claim 2, wherein selecting one or more wireless links to use for the transmission of the data comprises evaluating buffer status associated with each of the wireless links of the group of at least two available wireless links. ### Claim 7 (depends on 2) The method of claim 2: wherein the data to be sent is control plane data; and transmitting the data comprises, for each selected wireless link, forwarding a Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) to a respective lower layer link. ### Claim 8 (depends on 2) The method of claim 2, wherein selecting the one or more wireless links is done on a per Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) basis. ### Claim 9 (depends on 2) The method of claim 2, wherein selecting the one or more wireless links is done on a per Radio Link Control (RLC) Protocol Data Unit (PDU) basis. ### Claim 10 (depends on 2) The method of claim 2, wherein the data comprises Radio Resource Control (RRC) messages. ### Claim 11 A wireless device for dynamic link selection comprising: processing circuitry configured to: obtain data to be sent to a network node; select one or more wireless links to use for the transmission of the data to be sent to the network node, the one or more wireless links selected from a group of at least two available wireless links, the at least two available wireless links associated with at least two different radio access technologies; a wireless interface configured to transmit the data to the network node via the selected one or more wireless links; a user interface; and a power source configured to provide the wireless device with power. ### Claim 12 (depends on 11) The wireless device of claim 11, wherein the data to be sent comprises control data for a first wireless link of the at least two available wireless links, the first wireless link is associated with a first radio access technology; and the wireless interface configured to transmit the data to the network node is further configured to transmit the control data via at least a second wireless link of the at least two available wireless links, the second wireless link is associated with a second radio access technology different than the first radio access technology. ### Claim 13 (depends on 11) The wireless device of claim 11, wherein: the processing circuitry is further configured, upon selecting at least two wireless links from the group of at least two available wireless links, to replicate the data to be transmitted; and the wireless interface is further configured to transmit the replicated data to the network node via the at least two selected wireless links, the at least two selected wireless links conveying the same data, wherein the data transmitted on at least one of the selected wireless links is transmitted to the network node via a second network node. ### Claim 14 (depends on 11) The wireless device of claim 11, wherein the processing circuitry configured to select one or more wireless links to use for the transmission of the data is further configured to evaluate a link quality associated with each of the wireless links of the group of at least two available wireless links. ### Claim 15 (depends on 11) The wireless device of claim 11, wherein the processing circuitry configured to select one or more wireless links to use for the transmission of the data is further configured to evaluate buffer status associated with each of the wireless links of the group of at least two available wireless links. ### Claim 16 (depends on 11) The wireless device of claim 11, wherein: the data to be sent is control plane data; and the wireless interface configured to transmit the data is further configured, for each selected wireless link, to forward a Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) to a respective lower layer link. ### Claim 17 (depends on 11) The wireless device of claim 11, wherein the processing circuitry configured to select the one or more wireless links is further configured to select the one or more wireless links on a per Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) basis. ### Claim 18 (depends on 11) The wireless device of claim 11, wherein the processing circuitry configured to select the one or more wireless links is further configured to select the one or more wireless links on a per Radio Link Control (RLC) Protocol Data Unit (PDU) basis. ### Claim 19 (depends on 11) The wireless device of claim 11, wherein the data comprises Radio Resource Control (RRC) messages. ### Claim 20 A network node for dynamic link selection comprising: a wireless interface configured to provide at least a first wireless link for wireless communication with a wireless device, the first wireless link associated with a first radio access technology; a second interface configured to obtain control data from the wireless device, the control data transmitted by the wireless device via a second wireless link, the second wireless link associated with a second radio access technology different than the first radio access technology; and processing circuitry configured to determine whether the received control data is duplicated control data. ### Claim 21 A wireless device for dynamic link selection comprising a processor and computer readable storage media, the storage media containing instructions executable by the processor, whereby the wireless device is operative to: obtain data to be sent to a network node; select one or more wireless links to use for the transmission of the data to be sent to the network node, the one or more wireless links selected from a group of at least two [available wireless links, the at least two available wireless links associated with at least two different radio access technologies; and transmit the data to the network node via the selected one or more wireless links. ### Claim 22 (depends on 21) The wireless device of claim 21, wherein: the data to be sent comprises control data for a first wireless link of the at least two available wireless links, the first wireless link is associated with a first radio access technology; and the wireless device operative to transmit the data to the network node is further operative to transmit the control data via at least a second wireless link of the at least two available wireless links, the second wireless link is associated with a second radio access technology different than the first radio access technology. ### Claim 23 (depends on 21) The wireless device of claim 21, wherein the wireless device is further operative to, upon selecting at least two wireless links from the group of at least two available wireless links: replicate the data to be transmitted; transmit the replicated data to the network node via the at least two selected wireless links, the at least two selected wireless links conveying the same data via different radio access technologies; wherein the data transmitted on at least one of the selected wireless links is transmitted to the network node via a second network node. ### Claim 24 (depends on 21) The wireless device of claim 21, wherein the wireless device operative to select one or more wireless links to use for the transmission of the data is further operative to evaluate a link quality associated with each of the wireless links of the group of at least two available wireless links. ### Claim 25 (depends on 21) The wireless device of claim 21, wherein the wireless device operative to select one or more wireless links to use for the transmission of the data is further operative to evaluate buffer status associated with each of the wireless links of the group of at least two available wireless links. ### Claim 26 (depends on 21) The wireless device of claim 21: wherein the data to be sent is control plane data; and the wireless device operative to transmit the data is further operative to, for each selected wireless link, forward a Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) to a respective lower layer link. ### Claim 27 (depends on 21) The wireless device of claim 21, wherein the one or more wireless links are selected on a per Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) basis. ### Claim 28 (depends on 21) The wireless device of claim 21, wherein the one or more wireless links are selected on a per Radio Link Control (RLC) Protocol Data Unit (PDU) basis. ### Claim 29 (depends on 21) The wireless device of claim 21, wherein the data comprises Radio Resource Control (RRC) messages. ### Claim at position 30 -38. (canceled)