METHOD AND APPARATUS FOR INTERFERENCE REPORTING IN A N-MIMO COMMUNICATION SYSTEM
First Claim
1. A method, comprising:
- identifying a set of network cells operable to conduct communication with inter-site coordination;
measuring an amount of received power from respective network cells not associated with the identified set of network cells; and
reporting a measured amount of received power to one or more network cells in the identified set of network cells.
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Accused Products
Abstract
Systems and methodologies are described herein that facilitate interference measurement and reporting in a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, a network device can measure and report interference corresponding to network nodes outside a designated set of nodes that can cooperatively serve the device. Respective interference reports can additionally identify dominant interfering nodes, correlation between transmit antennas of respective nodes, or the like. Subsequently, respective interference reports can be combined with per-node channel information to manage coordination and scheduling across respective network nodes. As further described herein, interference from a network node can be measured by observing reference and/or synchronization signals from the network node. To aid such observation, respective non-interfering network nodes can define null pilot intervals in which transmission is silenced or otherwise reduced. As additionally described herein, loading information broadcasted by respective interfering network nodes can be identified and utilized in connection with interference calculation.
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Citations
55 Claims
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1. A method, comprising:
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identifying a set of network cells operable to conduct communication with inter-site coordination; measuring an amount of received power from respective network cells not associated with the identified set of network cells; and reporting a measured amount of received power to one or more network cells in the identified set of network cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A wireless communications apparatus, comprising:
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a memory that stores data relating to a set of serving network nodes operable to conduct communication with inter-node coordination; and a processor configured to measure an amount of received power from respective network nodes not associated with the set of serving network nodes and to report a measured amount of received power to one or more serving network nodes. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An apparatus, comprising:
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means for identifying a set of associated network nodes operable to perform at least one of uplink communication or downlink communication using inter-node coordination; and means for reporting an amount of received power corresponding to respective network nodes not associated with the set of associated network nodes. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. A computer program product, comprising:
a computer-readable medium, comprising; code for causing a computer to identify a set of associated network nodes operable to perform at least one of uplink communication or downlink communication using inter-node coordination; and code for causing a computer to report an amount of received power corresponding to respective network nodes not associated with the set of associated network nodes. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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44. A method, comprising:
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defining an interference reporting schedule for one or more associated user equipment units (UEs); scheduling respective null pilot intervals within the interference reporting schedule; and conducting limited transmission upon occurrence of a scheduled null pilot interval within the interference reporting schedule. - View Dependent Claims (45, 46, 47)
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48. A wireless communications apparatus, comprising:
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a memory that stores data relating to one or more user devices and an interference reporting schedule associated with the one or more user devices; and a processor configured to define respective null pilot intervals within the interference reporting schedule such that limiting is performed for communication occurring substantially simultaneously with the respective null pilot intervals. - View Dependent Claims (49, 50, 51)
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52. An apparatus, comprising:
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means for defining an interference reporting schedule for respective associated user devices, wherein the interference reporting schedule includes one or more null pilots; and means for performing at least one of transmit silencing or transmit power backoff upon occurrence of respective null pilots in the interference reporting schedule. - View Dependent Claims (53)
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54. A computer program product, comprising:
a computer-readable medium, comprising; code for causing a computer to define an interference reporting schedule for respective associated user equipment units (UEs), wherein the interference reporting schedule includes one or more null pilots; and code for causing a computer to conduct at least one of transmit silencing or transmit power backoff upon occurrence of respective null pilots in the interference reporting schedule. - View Dependent Claims (55)
Specification