# US 10,375,673 B2 · Method and apparatus for enhancing broadcast service > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,375,673 B2 - Document ID: US10375673B2 - Status: Granted - Kind: B2 - Application number: 15/329,225 - Filed: 2014-08-04 - Published: 2017-08-03 - Granted: 2019-08-06 - Earliest claimed: 2014-08-04 - Assignees: Nokia Solutions and Networks Oy - Applicants: Nokia Solutions and Networks Oy - Inventors: Xiang Xu; Henri Markus Koskinen; Tsunehiko Chiba - Web page: https://patentgrep.com/patent/US10375673B2 ## CPC - H04W 72/30: Resource management for broadcast services - H04L 65/1069: Session establishment or de-establishment - H04L 65/611: for multicast or broadcast (systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06) - H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services - H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) - H04W 84/042: {Public Land Mobile systems, e.g. cellular systems} - 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 A method and apparatus can be configured to receive an indication for support for a broadcast service enhancement layer from a first network node. The method may also comprise transmitting the indication for support for the broadcast service enhancement layer to a second network node. The method may also comprise receiving a broadcast service session request message from the second network node. The broadcast service session request message may indicate that a broadcast service session is for a base layer or for the enhancement layer. ## Claims ### Claim 1 A first base station comprising: at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the first base station to: receive an indication for support for a broadcast service enhancement layer from a second base station; transmit the indication for support for the broadcast service enhancement layer to a broadcast service coordination entity; receive a broadcast service session request message from the broadcast service coordination entity; determine that the broadcast service session request message indicates that a broadcast service session is for an enhancement layer; provide a base layer of the broadcast service session to a user equipment having a low data rate connection and to a user equipment having a high data rate connection; transmit the broadcast service session request message to the second base station; and cause the second base station to transmit the enhancement layer of the broadcast service session to the user equipment having the high data rate connection. ### Claim 2 (depends on 1) The first base station according to claim 1, wherein the first base station comprises a master evolved Node B, the second base station comprises a secondary evolved Node B, and-the second network node comprises a multimedia-broadcast-multicast-service-coordination entity wherein the first and second base stations operate in dual connectivity. ### Claim 3 (depends on 1) The first base station according to claim 1, wherein the broadcast service enhancement layer is a multimedia-broadcast-multicast service enhancement layer. ### Claim 4 (depends on 1) The first base station according to claim 1, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the first base station to: determine a resource allocation for the broadcast service session for the enhancement layer; and transmit the resource allocation to the second base station. ### Claim 5 (depends on 1) The first base station according to claim 1, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the first base station to: receive from the broadcast service coordination entity a resource allocation for the broadcast service session for the enhancement layer; and forward the resource allocation to the second base station. ### Claim 6 (depends on 1) The first base station according to claim 1, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the first base station to: provide an indication to the user equipment having the high data rate connection so that the user equipment having the high data rate connection can decode broadcast service data that is transmitted via the second base station. ### Claim 7 (depends on 1) The first base station according to claim 1, wherein the first base station is on a coverage-oriented frequency layer, and the second base station is on a capacity-oriented frequency layer. ### Claim 8 (depends on 1) The first base station according to claim 1, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the first base station to: decide that an on-going broadcast service session for the enhancement layer is to be shifted from the second base station to the first base station. ### Claim 9 (depends on 8) The first base station according to claim 8, wherein the deciding is based on a request from the second base station. ### Claim 10 (depends on 8) The first base station according to claim 8, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the first base station to: transmit an indication to the user equipment having the high data rate connection so that the user equipment having the high data rate connection knows that both the base layer and the enhancement layer are to be broadcasted by the first base station. ### Claim 11 A second base station comprising: at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the second base station to: determine that the second base station supports for a broadcast service enhancement layer; transmit an indication for support for the broadcast service enhancement layer to a first base station; receive a broadcast service session request message from the first base station; determine that the received broadcast service session request message indicates that a broadcast service session is for an enhancement layer; and transmit the enhancement layer of the broadcast service session to a user equipment having a high data rate connection, wherein a base layer of the broadcast service session is provided to the user equipment having the high data rate connection and to a user equipment having a low data rate connection by the first base station. ### Claim 12 (depends on 11) The second base station according to claim 11, wherein the second base station comprises a secondary evolved Node B, and the first base station comprises a master evolved Node B, and wherein the first and second base stations operate in dual connectivity. ### Claim 13 (depends on 11) The second base station according to claim 11, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the second base station to: receive a resource allocation for the broadcast service session for the enhancement layer. ### Claim 14 A method, comprising: receiving, by a first base station, an indication for support for a broadcast service enhancement layer from a second base station; transmitting the indication for support for the broadcast service enhancement layer to a broadcast service coordination entity; receiving a broadcast service session request message from the broadcast service coordination entity; determining that the broadcast service session request message indicates that a broadcast service session is for an enhancement layer; providing a base layer of the broadcast service session to a user equipment having a low data rate connection and to a user equipment having a high data rate connection; transmitting the broadcast service session request message to the second base station; and causing the second base station to transmit the enhancement layer of the broadcast service session to the user equipment having the high data rate connection. ### Claim 15 (depends on 14) The method according to claim 14, further comprising: determining a resource allocation for the broadcast service session for the enhancement layer; and transmitting the resource allocation to the second base station. ### Claim 16 (depends on 14) The method according to claim 14, further comprising: receiving from the broadcast service coordination entity a resource allocation for the broadcast service session for the enhancement layer; and forwarding the resource allocation to the second base station. ### Claim 17 (depends on 14) The method according to claim 14, further comprising: providing an indication to the user equipment having the high data rate connection so that the user equipment having the high data rate connection can decode broadcast service data that is transmitted via the second base station. ### Claim 18 (depends on 14) The method according to claim 14, further comprising: deciding that an on-going broadcast service session for the enhancement layer is to be shifted from the second base station to the first base station. ### Claim 19 (depends on 18) The method according to claim 18, wherein the deciding is based on a request from the second base station. ### Claim 20 (depends on 18) The method according to claim 18, further comprising: transmitting an indication to the user equipment having the high data rate connection so that the user equipment having the high data rate connection knows that both the base layer and the enhancement layer are to be broadcasted by the first base station.