# US 11,910,239 B1 · Assigning component carriers for relay nodes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,239 B1 - Document ID: US11910239B1 - Status: Granted - Kind: B1 - Application number: 17/126,540 - Filed: 2020-12-18 - Granted: 2024-02-20 - Earliest claimed: 2020-12-18 - Assignees: Sprint Spectrum L.P. - Applicants: Sprint Spectrum LP - Inventors: Sreekar Marupaduga - Web page: https://patentgrep.com/patent/US11910239B1 ## CPC - H04B 7/15542: {Selecting at relay station its transmit and receive resources (selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003)} - H04W 28/16: Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service] - H04B 7/155: Ground-based stations (H04B7/204 takes precedence) - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling} - H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands} - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Optimizing carrier aggregation assignment for relay nodes by assigning all available component carriers within a sector towards relay node transmissions regardless of a buffer status of the relay nodes. Embodiments include stationary relay nodes and those with consistent channel states. ## Claims ### Claim 1 A method for assigning component carriers for relay nodes, the method comprising: identifying a relay node accessing network services from a donor access node, the donor access node deploying a plurality of component carriers; determining that channel state information is consistent over a time period; based on determining that the channel state information is consistent over a time period, determining all available component carriers of the plurality of component carriers to avoid delays or failures in setting up the plurality of component carriers; and assigning all available component carriers towards data transmission between the relay node and the donor access node to provide continuous resources to a backhaul link of the relay nodes. ### Claim 2 (depends on 1) The method of claim 1, wherein the relay node is configured to aggregate two or more of the all available component carriers. ### Claim 3 (depends on 1) The method of claim 1, wherein assigning all available component carriers is performed by default regardless of a low buffer size of the relay node. ### Claim 4 (depends on 1) The method of claim 1, further comprising identifying all available component carriers for the relay node based on channel state information reported by the relay node to the donor access node. ### Claim 5 (depends on 1) The method of claim 1, further comprising determining that a channel state information is consistent over a time period as a condition to assigning the all available component carriers. ### Claim 6 (depends on 1) The method of claim 1, further comprising determining that the relay node is a stationary relay node as a condition to assigning the all available component carriers. ### Claim 7 (depends on 1) The method of claim 1, further comprising identifying the relay node based on a unique identifier. ### Claim 8 (depends on 1) The method of claim 1, further comprising: monitoring a load of the donor access node; and upon the load exceeding one or more thresholds, incrementally reducing a quantity of component carriers assigned to the relay node. ### Claim 9 (depends on 8) The method of claim 8, wherein the relay node is configured to relay traffic between the donor access node and end-user wireless devices attached to the relay node. ### Claim 10 A system for assigning component carriers for relay nodes, the system comprising: a processing node; and a processor coupled to the processing node, the processor configured to perform operations comprising: receiving an attach request from a relay node at a donor access node, the donor access node being configured to deploy a plurality of component carriers; determining that channel state information is consistent over a time period; based on determining that the channel state information is consistent over a time period, determining all available component carriers of the plurality of component carriers to avoid delays or failures in setting up the plurality of component carriers; and assigning all available component carriers towards data transmission between the relay node and the donor access node by default to provide continuous resources to a backhaul link of the relay nodes. ### Claim 11 (depends on 10) The system of claim 10, wherein assigning all available component carriers is performed by default regardless of a buffer status of the relay node. ### Claim 12 (depends on 10) The system of claim 10, wherein the operations further comprise determining that channel state information for the relay node is consistent over a time period as a condition to assigning the all available component carriers. ### Claim 13 (depends on 10) The system of claim 10, wherein the operations further comprise determining that the relay node is a stationary relay node as a condition to assigning the all available component carriers. ### Claim 14 (depends on 10) The system of claim 10, wherein the operations further comprise monitoring a load of the donor access node and, upon the load exceeding one or more thresholds, incrementally reducing a quantity of component carriers assigned to the relay node. ### Claim 15 (depends on 10) The system of claim 10, wherein the relay node is configured to relay traffic between the donor access node and end-user wireless devices attached to the relay node. ### Claim 16 A processing node for assigning component carriers for relay nodes, the processing node comprising: one or more processors being operably coupled to one or more relay nodes and one or more donor access nodes, the one or more processors configured to perform operations comprising: initiating a connection between a relay node of the one or more relay nodes and a donor access node of the one or more donor access nodes, the donor access node being configured to deploy a plurality of component carriers; determining that channel state information is consistent over a time period; based on determining that the channel state information is consistent over a time period, determining all available component carriers of the plurality of component carriers to avoid delays or failures in setting up the plurality of component carriers; assigning all available component carriers towards the relay node by default to provide continuous resources to a backhaul link of the relay nodes; and incrementally reducing a quantity of component carriers of the available component carriers based on a load level of the donor access node exceeding different thresholds. ### Claim 17 (depends on 16) The processing node of claim 16, wherein assigning all available component carriers is performed by default regardless of a buffer status of the relay node. ### Claim 18 (depends on 16) The processing node of claim 16, wherein the operations further comprise determining that channel state information for the relay node is consistent over a time period as a condition to assigning the all available component carriers. ### Claim 19 (depends on 16) The processing node of claim 16, wherein the operations further comprise determining that the relay node is a stationary relay node as a condition to assigning the all available component carriers. ### Claim 20 (depends on 16) The processing node of claim 16, wherein the relay node is configured to relay traffic between the donor access node and end-user wireless devices attached to the relay node.