# US 9,439,097 B2 · Selective signaling information sharing for CoMP enhancement > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,439,097 B2 - Document ID: US9439097B2 - Status: Granted - Kind: B2 - Application number: 14/176,670 - Filed: 2014-02-10 - Published: 2015-08-13 - Granted: 2016-09-06 - Earliest claimed: 2014-02-10 - Assignees: Alcatel Lucent - Applicants: Min Zhang; Matthew Baker; Hakon Helmers; Philippe Godin; Fangchen Cheng - Inventors: Min Zhang; Matthew Baker; Hakon Helmers; Philippe Godin; Fangchen Cheng - Web page: https://patentgrep.com/patent/US9439097B2 ## CPC - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04L 5/0035: {Resource allocation in a cooperative multipoint environment} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04L 43/06: Generation of reports - H04W 28/02: Traffic management, e.g. flow control or congestion control - 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 of facilitating coordinated multi-point communication (CoMP) in a wireless communications network including at least a first base station (BS) and a second BS, a plurality of user equipment (UEs) being associated with the second BS, includes generating, at the first BS, a status request message for requesting the second BS to report one or more types of status information, the status request message including at least one of an aggregation indicator and conditional reporting indicator, the aggregation indicator specifying whether the second BS is to report individual measurements or aggregated measurements to the first BS, the conditional reporting indicator indicating to the second BS to report measurements corresponding to the one or more types of resource status information to the first BS only when one or more conditions are met; and sending the status request message to the second BS. ## Claims ### Claim 1 A method of facilitating coordinated multi-point communication (CoMP) in a wireless communications network including at least a first base station (BS) and a second BS, a plurality of user equipment (UEs) being associated with the second BS, the method comprising: generating, at a the first BS, a status request message for requesting the second BS to report one or more types of status information, the status request message including at least one of an aggregation indicator and a conditional reporting indicator, the aggregation indicator being an indicator that specifies whether the second BS is to report individual measurements or aggregated measurements to the first BS, the conditional reporting indicator being an indicator that indicates to the second BS to report measurements corresponding to one or more of the one or more types of resource status information to the first BS only when one or more first conditions are met; sending the status request message to the second BS; and receiving, at the first BS from the second BS, a status response message in response to the sent status request message, the status response message including measurements that conform to the at least one of an aggregation indicator and a conditional reporting indicator. ### Claim 2 (depends on 1) The method of claim 1, wherein the generated status request message includes the conditional reporting indicator, the conditional reporting indicator indicates to the second BS to report only measurements that correspond to UEs, from among the plurality of UEs, that meet the one or more first conditions. ### Claim 3 (depends on 2) The method of claim 2, wherein one of the one or more first conditions is a threshold value or range corresponding to a first information type from among the one of the one or more types of resource status information, and the condition reporting indicator indicates to the second BS to report only measurements of UEs, from among the plurality of UEs, having measurements of the first information type that have a desired relationship with the threshold value or range. ### Claim 4 (depends on 1) The method of claim 1, wherein the generated status request message includes the aggregation indicator, and the aggregation indicator specifies whether the second BS is to report individual measurements corresponding, respectively, to individual UEs, from among the plurality of UEs, or one or more aggregated measurements corresponding, respectively, to one or more groups of UEs, from among the plurality of UEs. ### Claim 5 (depends on 4) The method of claim 4, wherein the aggregation indicator indicates to the second BS to report an aggregated measurement of a first information type from among the one of the one or more types of resource status information, the aggregated measurement being at least one of an average, sum or an statistical value of a plurality of measurements of the first information type, the plurality of measurements corresponding, respectively, to a group of UEs from among the plurality of UEs. ### Claim 6 (depends on 1) The method of claim 1, wherein the wireless communications network includes long term evolution (LTE) radio access technology, the first and second BSs are evolved Node-Bs (eNBs), and the sending the status request message includes sending the status request message from the first eNB to the second eNB through an X2 link. ### Claim 7 A method of facilitating coordinated multi-point communication (CoMP) in a wireless communications network including at least a first base station (BS) and a second BS, a plurality of user equipment (UEs) being associated with the second BS, the method comprising: receiving, at the second BS from the first BS, a status request message requesting the second BS to report one or more types of status information, the status request message including at least one of an aggregation indicator and conditional reporting indicator, the aggregation indicator being an indicator that specifies whether the second BS is to report individual measurements or aggregated measurements to the first BS, the conditional reporting indicator being an indicator that indicates to the second BS to report measurements corresponding to the one or more types of resource status information to the first BS only when one or more first conditions are met; selecting one or more UEs, from among the plurality of UEs, based on the at least one of an aggregation indicator and a conditional reporting indicator; generating, at the second BS, a status response message based on measurements corresponding only to the selected one or more UEs; and sending the status response message from the second BS to the first BS. ### Claim 8 (depends on 7) The method of claim 7, wherein the received status request message includes the conditional reporting indicator, and the selecting one or more UEs includes selecting only one or more UEs, from among the plurality of UEs, that meet the one or more first conditions. ### Claim 9 (depends on 8) The method of claim 8, wherein one of the one or more first conditions is a threshold value or range corresponding to a first information type from among the one of the one or more types of resource status information, and the selecting one or more UEs includes selecting only one or more UEs, from among the plurality of UEs, having measurements of the first information type that have a desired relationship with the threshold value or range. ### Claim 10 (depends on 7) The method of claim 7, wherein the received status request message includes the aggregation indicator, and the generating the status response message includes the second BS selecting between including, in the generated status report, individual measurements corresponding, respectively, to individual UEs, from among the plurality of UEs, and including, in the generated status report, one or more aggregated measurements corresponding, respectively, to one or more groups of UEs, from among the plurality of UEs, the selection being based on the aggregation indicator. ### Claim 11 (depends on 10) The method of claim 10, wherein, based on the aggregation indicator, the generating a status response message includes including, in the status response message, an aggregated measurement of a first information type from among the one of the one or more types of resource status information, the aggregated measurement being at least one of an average, sum, or statistical value of a plurality of measurements of the first information type, the plurality of measurements corresponding, respectively, to a group of UEs from among the plurality of UEs. ### Claim 12 (depends on 7) The method of claim 7, wherein the wireless communications network includes long term evolution (LTE) radio access technology, the first and second BSs are evolved Node-Bs (eNBs), and the sending the status response message includes sending the status response message from the second eNB to the first eNB through an X2 link. ### Claim 13 A network element comprising: a processor, the network element being programmed such that the processor executes operations for facilitating coordinated multi-point communication (COMP) in a wireless communications network including at least a first base station (BS) and a second BS, the network element being the first BS, a plurality of user equipment (UEs) being associated with the second BS, the operations including, generating a status request message for requesting the second BS to report one or more types of status information, the status request message including at least one of an aggregation indicator and conditional reporting indicator, the aggregation indicator being an indicator that specifies whether the second BS is to report individual measurements or aggregated measurements to the first BS, the conditional reporting indicator being an indicator that indicates to the second BS to report measurements corresponding to the one or more types of resource status information to the first BS only when one or more first conditions are met, sending the status request message to the second BS, and receiving, from the second BS, a status response message in response to the sent status request message, the status response message including only measurements that conform to the at least one of an aggregation indicator and a conditional reporting indicator. ### Claim 14 (depends on 13) The first BS of claim 13, wherein first BS is programmed to generate the status request message such that the status request message includes the conditional reporting indicator, and the conditional reporting indicator indicates to the second BS to report only measurements that correspond to UEs, from among the plurality of UEs, that meet the one or more first conditions. ### Claim 15 (depends on 13) The first BS of claim 13, wherein first BS is programmed to generate the status request message such that the status request message includes the aggregation indicator, and the aggregation indicator specifies whether the second BS is to report individual measurements corresponding, respectively, to individual UEs, from among the plurality of UEs, or one or more aggregated measurements corresponding, respectively, to one or more groups of UEs, from among the plurality of UEs. ### Claim 16 A network element comprising: a processor, the network element being programmed such that the processor executes operations for facilitating coordinated multi-point communication (CoMP) in a wireless communications network including at least a first base station (BS) and a second BS, the network element being the second BS, a plurality of user equipment (UEs) being associated with the second BS, the operations including, receiving a status request message requesting the second BS to report to the first BS one or more types of status information, the status request message including at least one of an aggregation indicator and conditional reporting indicator, the aggregation indicator being an indicator that specifies whether the second BS is to report individual measurements or aggregated measurements to the first BS, the conditional reporting indicator being an indicator that indicates to the second BS to report measurements corresponding to the one or more types of resource status information to the first BS only when one or more first conditions are met, selecting one or more UEs, from among the plurality of UEs, based on the report control information, generating a status response message based on measurements corresponding only to the selected one or more UEs, and sending the status response message to the first BS. ### Claim 17 (depends on 16) The second BS of claim 16, wherein the second BS is programmed such that, if the received status request message includes the conditional reporting indicator, all the one or more UEs selected by the second BS meet the one or more first conditions. ### Claim 18 (depends on 17) The second BS of claim 17, wherein the second BS is programmed such that, if the received status request message includes the conditional reporting indicator and one of the one or more first conditions is a threshold value or range corresponding to a first information type from among the one of the one or more types of resource status information, all the one or more UEs selected by the second BS have measurements of the first information type that have a desired relationship with the threshold value or range. ### Claim 19 (depends on 16) The second BS of claim 16, wherein the second BS is programmed such that, if the received status request message includes the aggregation indicator, the second BS generates the status response message by selecting between including, in the status response message, individual measurements corresponding, respectively, to individual UEs, from among the plurality of UEs, and including, in the status response message, one or more aggregated measurements corresponding, respectively, to one or more groups of UEs, from among the plurality of UEs, the selection being based on the aggregation indicator. ### Claim 20 (depends on 19) The second BS of claim 19, wherein the second BS is programmed such that, if the received status request message includes an aggregation indicator that indicates to the second BS to generate an aggregated measurement, the second BS generates the status response message by including, in the status response message, an aggregated measurement of a first information type from among the one or more types of resource status information, the aggregated measurement being at least one of an average, sum or statistical value of a plurality of measurements of the first information type, the plurality of measurements corresponding, respectively, to a group of UEs from among the plurality of UEs.