# US 9,439,103 B2 · Systems, methods, and apparatuses for modem coordination > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,439,103 B2 - Document ID: US9439103B2 - Status: Granted - Kind: B2 - Application number: 13/521,728 - Filed: 2010-12-22 - Published: 2013-01-24 - Granted: 2016-09-06 - Earliest claimed: 2010-01-14 - Assignees: Nokia Technologies Oy - Applicants: Mikko Pesola; Petri Vasenkari; Tommi Auranen; Woonhee Hwang; Sabine Rossel; Michael Schopp; Sari Nielsen - Inventors: Mikko Pesola; Petri Vasenkari; Tommi Auranen; Woonhee Hwang; Sabine Rossel; Michael Schopp; Sari Nielsen - Web page: https://patentgrep.com/patent/US9439103B2 ## CPC - H04W 28/04: Error control - H04W 52/365: {Power headroom reporting} - H04W 72/54: based on quality criteria - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 76/15: Setup of multiple wireless link connections - H04W 76/16: Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer - H04W 76/18: Management of setup rejection or failure - H04W 88/08: Access point devices - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Methods, apparatuses, and systems are provided for modem coordination. A method may include establishing a coordinated communication session with a base station on a first communication channel. The method may further include causing transmission, to the base station, of an indication of an occurrence of an irregular transmission of data on a second communication channel. The second communication channel may be with a station logically separated from the base station. The base station maybe configured to respond to the indication of the occurrence of the irregular transmission by modifying transmission on the first communication channel to avoid interfering with the irregular transmission. The method may additionally include causing transmission, to the base station, of an indication of completion of the irregular transmission to allow the base station to resume normal transmission on the first communication channel. Corresponding apparatuses and systems are also provided. ## Claims ### Claim 1 A method comprising: causing, by a user equipment, establishment of a coordinated communication session with a first base station on a first communication channel and with a second base station on a second communication channel; causing, by the user equipment, transmission of a coordinated communication session activation confirmation including one or more coordination configuration parameters indicative of a regular transmission pattern on the second communication channel; and causing, by the user equipment, transmission, to the first base station, of an indication of an occurrence of an irregular transmission of data on the second communication channel with the second base station, wherein the transmission of the indication is in response to detecting the irregular transmission of data on the second communication channel to enable the first base station to modify transmission on the first communication channel to avoid interfering with the irregular transmission, wherein the indication of the regular transmission on the second communication channel enables the user equipment to detect the irregular transmission on the second communication channel. ### Claim 2 (depends on 1) The method of claim 1, further comprising causing, by the user equipment, transmission, to the first base station, of an indication of completion of the irregular transmission to enable the first base station to resume normal transmission on the first communication channel. ### Claim 3 (depends on 1) The method of claim 1, further comprising: determining, by the user equipment, that the resynchronization of the coordinated communication session is required; and causing, by the user equipment, resynchronization of the coordinated communication session with the first base station in response to determining that resynchronization of the coordinated communication session is required. ### Claim 4 (depends on 1) The method of claim 1, wherein the one or more coordination configuration parameters about the regular transmission pattern on the second communication channel comprise an indication of a quantity of transmission time intervals until a start of a transmission on the second communication channel. ### Claim 5 (depends on 1) The method of claim 1, wherein the one or more coordination configuration parameters about the regular transmission pattern on the second communication channel comprise a quantity of transmission time intervals in a scheduled transmission on the second communication channel. ### Claim 6 (depends on 1) The method of claim 1, wherein the one or more coordination configuration parameters about the regular transmission pattern on the second communication channel comprise a quantity of transmission time intervals in a scheduled transmission on the second communication channel plus a safety margin. ### Claim 7 (depends on 1) The method of claim 1, wherein the user equipment includes a first modem to provide the coordinated communication with the first base station on the first communication channel and further includes a second modem to provide the coordinated communication with the second base station on the second communication channel. ### Claim 8 (depends on 7) The method of claim 7, wherein the coordinated communication session modifies communications on the first communication channel to avoid interference caused by the irregular transmission on the second communication channel. ### Claim 9 An apparatus comprising at least one processor and at least one memory storing computer program code, wherein the at least one memory and stored computer program code are configured, with the at least one processor, to cause the apparatus to at least: cause, by a user equipment, establishment of a coordinated communication session with a first base station on a first communication channel and with a second base station on a second communication channel; causing, by the user equipment, transmission of a coordinated communication session activation confirmation including one or more coordination configuration parameters indicative of a regular transmission pattern on the second communication channel; and cause, by the user equipment, transmission, to the first base station, of an indication of an occurrence of an irregular transmission of data on the second communication channel with the second base station, wherein the transmission of the indication is in response to detecting the irregular transmission of data on the second communication channel to enable the first base station to modify transmission on the first communication channel to avoid interfering with the irregular transmission, wherein the indication of the regular transmission on the second communication channel enables the user equipment to detect the irregular transmission on the second communication channel. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein the at least one memory and stored computer program code are configured, with the at least one processor, to further cause the apparatus to: cause, by the user equipment, transmission, to the first base station, of an indication of completion of the irregular transmission to enable the first base station to resume normal transmission on the first communication channel. ### Claim 11 (depends on 9) The apparatus of claim 9, wherein the one or more coordination configuration parameters comprise an additional maximum power reduction parameter indicating a maximum power useable for transmission of data on the first communication channel during transmissions on the second communication channel. ### Claim 12 (depends on 9) The apparatus of claim 9, wherein the one or more coordination configuration parameters comprise one or more of an indication of one or more allowed carrier frequencies that are useable for transmission of data on the first communication channel during transmissions on the second communication channel or an indication of one or more disallowed carrier frequencies that are not useable for transmission of data on the first communication channel during transmissions on the second communication channel. ### Claim 13 (depends on 9) The apparatus of claim 9, wherein the at least one memory and stored computer program code are configured, with the at least one processor, to further cause the apparatus to: determine, by the user equipment, that resynchronization of the coordinated communication session is required; and cause, by the user equipment, resynchronization of the coordinated communication session with the first base station in response to determining that resynchronization of the coordinated communication session is required. ### Claim 14 A non-transitory computer program product comprising at least one computer-readable storage medium having computer-readable program instructions stored therein, the computer-readable program instructions comprising program instructions configured to cause an apparatus to perform a method comprising: causing, by a user equipment, establishment of a coordinated communication session with a first base station on a first communication channel and with a second base station on a second communication channel; causing, by the user equipment, transmission of a coordinated communication session activation confirmation including one or more coordination configuration parameters indicative of a regular transmission pattern on the second communication channel; and causing, by the user equipment, transmission, to the first base station, of an indication of an occurrence of an irregular transmission of data on the second communication channel with the second base station, wherein the transmission of the indication is in response to detecting the irregular transmission of data on the second communication channel to enable the first base station to modify transmission on the first communication channel to avoid interfering with the irregular transmission, wherein the indication of the regular transmission on the second communication channel enables the user equipment to detect the irregular transmission on the second communication channel. ### Claim 15 A method comprising: causing, by a first base station, establishment of a coordinated communication session with a user equipment on a first communication channel and with a second base station on a second communication channel; causing, by the first base station, reception of a coordinated communication session activation confirmation including one or more coordination configuration parameters indicative of a regular transmission pattern on the second communication channel; receiving, by the first base station, an indication of an occurrence of an irregular transmission of data on the second communication channel between the user equipment and the second base station, wherein the receiving the indication is in response to detecting, by the user equipment, the irregular transmission of data on the second communication channel, wherein the indication of the regular transmission on the second communication channel enables the user equipment to detect the irregular transmission on the second communication channel; and causing, by the first base station, modification of transmission on the first communication channel to avoid interfering with the irregular transmission on the second communication channel. ### Claim 16 (depends on 15) The method of claim 15, further comprising: receiving, by the first base station, an indication of completion of the irregular transmission; and causing, by the first base station, resumption of normal transmission on the first communication channel in response to the indication of completion of the irregular transmission. ### Claim 17 (depends on 15) The method of claim 15, wherein causing, by the first base station, modification of transmission on the first communication channel comprises causing modification of transmission on the first communication channel based at least in part on one or more coordination configuration parameters established for the coordinated communication session. ### Claim 18 (depends on 15) The method of claim 15, wherein causing, by the first base station, modification of transmission on the first communication channel comprises one or more of causing cessation of data transmission on the first communication channel during the irregular transmission, reducing a maximum power for transmission on the first communication channel, or restricting transmission on the first communication channel to one or more predefined allowable carrier frequencies. ### Claim 19 An apparatus comprising at least one processor and at least one memory storing computer program code, wherein the at least one memory and stored computer program code are configured, with the at least one processor, to cause the apparatus to at least: cause, by a first base station, establishment of a coordinated communication session with a user equipment on a first communication channel and with a second base station on a second communication channel; cause, by the first base station, reception of a coordinated communication session activation confirmation including one or more coordination configuration parameters indicative of a regular transmission pattern on the second communication channel; receive, by the first base station, an indication of an occurrence of an irregular transmission of data on the second communication channel between the user equipment and the second base station, wherein the receive the indication is in response to detecting, by the user equipment, the irregular transmission of data on the second communication channel, wherein the indication of the regular transmission on the second communication channel enables the user equipment to detect the irregular transmission on the second communication channel; and cause, by the first base station, modification of transmission on the first communication channel to avoid interfering with the irregular transmission on the second communication channel. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the at least one memory and stored computer program code are configured, with the at least one processor, to further cause the apparatus to: receive, by the first base station, an indication of completion of the irregular transmission; and cause, by the first base station, resumption of normal transmission on the first communication channel in response to the indication of completion of the irregular transmission. ### Claim 21 (depends on 19) The apparatus of claim 19, wherein the at least one memory and stored computer program code are configured, with the at least one processor, to cause the apparatus to cause, by the first base station, modification of transmission on the first communication channel based at least in part on one or more coordination configuration parameters established for the coordinated communication session. ### Claim 22 (depends on 19) The apparatus of claim 19, wherein the at least one memory and stored computer program code are configured, with the at least one processor, to cause the apparatus to cause, by the first base station, modification of transmission on the first communication channel at least in part by one or more of causing cessation of data transmission on the first communication channel during the irregular transmission, reducing a maximum power for transmission on the first communication channel, or restricting transmission on the first communication channel to one or more predefined allowable carrier frequencies. ### Claim 23 A non-transitory computer program product comprising at least one computer-readable storage medium having computer-readable program instructions stored therein, the computer-readable program instructions comprising program instructions configured to cause an apparatus to perform a method comprising: causing, by a first base station, establishment of a coordinated communication session with a user equipment on a first communication channel and with a second base station on a second communication channel; causing, by the first base station, reception of a coordinated communication session activation confirmation including one or more coordination configuration parameters indicative of a regular transmission pattern on the second communication channel; receiving, by the first base station, an indication of an occurrence of an irregular transmission of data on the second communication channel between the user equipment and the second base station, wherein the receiving the indication is in response to detecting, by the user equipment, the irregular transmission of data on the second communication channel, wherein the indication of the regular transmission on the second communication channel enables the user equipment to detect the irregular transmission on the second communication channel; and causing, by the first base station, modification of transmission on the first communication channel to avoid interfering with the irregular transmission on the second communication channel.