# US 2020/0288351 A1 · Management of Uplink Bitrates > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288351 A1 - Document ID: US20200288351A1 - Status: Published application - Kind: A1 - Application number: 16/763,590 - Filed: 2018-11-16 - Published: 2020-09-10 - Earliest claimed: 2017-11-17 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Angelo Centonza; Martin Skarve; Alexander Vesely - Web page: https://patentgrep.com/patent/US20200288351A1 ## CPC - H04W 28/22: Negotiating communication rate - H04L 43/0894: Packet rate - H04W 28/12: using signalling between network elements - H04W 76/15: Setup of multiple wireless link connections - 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 In one aspect, one or more network nodes are configured to manage bitrates for dedicated radio bearers (DRBs) for a UE served by two or more distributed transmission units, where the DRBs include at least one DRB terminating at a first control unit and at least one DRB terminating at a second control unit. The network nodes determine at least a first UL AMBR value for the UE for the first control unit and at least a second UL AMBR value for the UE for the second control unit. The network nodes then signal the first UL AMBR to the first control unit and the second UL AMBR to the second control unit, for enforcement by the first and second control units. ## Claims ### Claim at position 1 1-44. (canceled) ### Claim 45 A method, in one or more network nodes of a wireless communication system, for managing bitrates for dedicated radio bearers (DRBs) for a user equipment (UE) served by two or more distributed transmission units, the DRBs including at least one DRB terminating at a first control unit and at least one DRB terminating at a second control unit, the method comprising: determining at least a first uplink aggregated maximum bit rate (UL AMBR) value for the UE for the first control unit and at least a second UL AMBR value for the UE for the second control unit; and signaling the first UL AMBR to the first control unit and signaling the second UL AMBR to the second control unit, for enforcement by the first and second control units. ### Claim 46 (depends on 45) The method of claim 45, wherein the first UL AMBR value is an aggregated value for two or more DRBs for the UE terminated at the first control unit and the second UL AMBR value is an aggregated value for two or more DRBs for the UE terminated at the second control unit. ### Claim 47 (depends on 45) The method of claim 45, wherein the determining comprises determining a UL AMBR value for each of multiple DRBs for the UE terminated at the first control unit and determining a UL AMBR value for each of multiple DRBs for the UE terminated at the second control unit, and wherein the signaling comprises signaling the UL AMBR values to the respective control units. ### Claim 48 (depends on 45) The method of claim 45, wherein the first and second control units host first and second Packet Data Convergence Protocol (PDCP) terminations, respectively, for the UE. ### Claim 49 (depends on 45) The method of claim 45, wherein the determining and the signaling are carried out by a gNB central unit (CU) for the control plane (CP) and wherein the first and second control units are first and second gNB CUs for the user plane (UP). ### Claim 50 (depends on 45) The method of claim 45, wherein the method further comprises enforcing the first and second UL AMBR values at the first and second control units, respectively. ### Claim 51 (depends on 50) The method of claim 50, wherein the enforcing comprises monitoring UL traffic bitrates for the DRBs of the UE terminated at the respective control unit, with respect to the respective UL AMBR values. ### Claim 52 (depends on 51) The method of claim 51, wherein: the determining comprises determining a UL AMBR value for each of multiple DRBs for the UE terminated at the first control unit and determining a UL AMBR value for each of multiple DRB s for the UE terminated at the second control unit, the signaling comprises signaling the UL AMBR values to the respective control units; and the monitoring comprises, for each of the first and second control units, monitoring a UL traffic bitrate for each of multiple DRBs terminated at the control unit, with respect to corresponding multiple UL AMBR values. ### Claim 53 (depends on 51) The method of claim 51, wherein the enforcing comprises, for at least one of the first and second control units, detecting that an UL traffic bitrate for one or more DRB s for the UE exceeds a corresponding UL AMBR value, and signaling an indication of a UL AMBR breach to a control plane control unit, in response to the detecting. ### Claim 54 (depends on 53) The method of claim 53, further comprising, in response to the signaling of the indication, receiving and implementing one or more of: an instruction to remove one or more DRBs for the UE; an instruction to limit UL traffic for one or more DRB s for the UE; and UL traffic bitrate limits for one or more DRB s for the UE. ### Claim 55 A method for managing bitrates for dedicated radio bearers (DRBs) for a user equipment (UE) served by two or more distributed transmission units, the DRBs including at least one DRB terminating at a first control unit and at least one DRB terminating at a second control unit, the method comprising, for one or more network nodes acting as the first control unit: receiving signaling indicating at least a first uplink aggregated maximum bit rate (UL AMBR) value for the UE; and enforcing the first UL AMBR value for the UE. ### Claim 56 (depends on 55) The method of claim 55, wherein the first UL AMBR value is an aggregated value for two or more DRBs for the UE terminated at the first control unit. ### Claim 57 (depends on 55) The method of claim 55, wherein the receiving comprises receiving a UL AMBR value for each of multiple DRB s for the UE terminated at the first control unit, and wherein the enforcing comprises enforcing each of the UL AMBR values. ### Claim 58 One or more network nodes of a wireless communication system configured to manage bitrates for dedicated radio bearers (DRBs) for a user equipment (UE) served by two or more distributed transmission units, the DRBs including at least one DRB terminating at a first control unit and at least one DRB terminating at a second control unit, the one or more network nodes comprising: communication circuitry; and processing circuitry operatively associated with the communication circuitry and configured to: determine at least a first uplink aggregated maximum bit rate (UL AMBR) value for the UE for the first control unit and at least a second UL AMBR value for the UE for the second control unit; and signal the first UL AMBR to the first control unit and signal the second UL AMBR to the second control unit, for enforcement by the first and second control units. ### Claim 59 One or more network nodes of a wireless communication system configured to manage bitrates for dedicated radio bearers (DRBs) for a user equipment (UE) served by two or more distributed transmission units, the DRB s including at least one DRB terminating at a first control unit and at least one DRB terminating at a second control unit, the one or more network nodes configured to act as a first control unit and comprising: communication circuitry; and processing circuitry operatively associated with the communication circuitry and configured to: receive signaling indicating at least a first uplink aggregated maximum bit rate (UL AMBR) value for the UE; and enforce the first UL AMBR value for the UE.