System and method for radio node location
First Claim
Patent Images
1. A method for determining if a radio node has been relocated, comprising:
- a. for a set of radio nodes connected to a services node, causing a first scan to be performed with respect to a subject radio node to determine a baseline set of transmission characteristics of neighboring radio nodes, the first scan measuring at least one transmission characteristic of a neighboring radio node with respect to the subject radio node;
b. detecting if a radio node has been off-line for greater than a first predetermined duration of time;
c. causing a second scan to be performed with respect to the radio node when the radio node has been off-line for greater than the first predetermined duration of time, the second scan being performed once the radio node is back online, the second scan measuring at least one transmission characteristic of a neighboring radio node; and
d. determining that the radio node that has been off-line for greater than the first predetermined duration of time has been relocated by performing the steps of;
identifying a number (N) of neighboring radio nodes to compare changes in the at least one transmission characteristic;
calculating a score based on a number of new radio nodes found in the second scan which were not found in the first scan and based on a number of radio nodes not found in the second scan which were found in the first scan and based on a change of the at least one transmission characteristic for one or more of the neighbor nodes between the first scan and the second scan; and
determining that the radio node has been relocated when the score is greater than a predetermined threshold.
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Accused Products
Abstract
Systems and methods disclosed detect significant changes in the RN topology after an E-RAN system has been installed and provisioned. If a significant change is detected, the operator is notified through an alarm, and the operator can take action to correct it. For example, an RN whose location was moved may be disabled. Alternatively, the movement operation may be approved and the alarm cleared so long as the operation falls within certain approved guidelines or categories, e.g., is appropriately reported and a new location noted.
6 Citations
23 Claims
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1. A method for determining if a radio node has been relocated, comprising:
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a. for a set of radio nodes connected to a services node, causing a first scan to be performed with respect to a subject radio node to determine a baseline set of transmission characteristics of neighboring radio nodes, the first scan measuring at least one transmission characteristic of a neighboring radio node with respect to the subject radio node; b. detecting if a radio node has been off-line for greater than a first predetermined duration of time; c. causing a second scan to be performed with respect to the radio node when the radio node has been off-line for greater than the first predetermined duration of time, the second scan being performed once the radio node is back online, the second scan measuring at least one transmission characteristic of a neighboring radio node; and d. determining that the radio node that has been off-line for greater than the first predetermined duration of time has been relocated by performing the steps of; identifying a number (N) of neighboring radio nodes to compare changes in the at least one transmission characteristic; calculating a score based on a number of new radio nodes found in the second scan which were not found in the first scan and based on a number of radio nodes not found in the second scan which were found in the first scan and based on a change of the at least one transmission characteristic for one or more of the neighbor nodes between the first scan and the second scan; and determining that the radio node has been relocated when the score is greater than a predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for determining if a radio node has been relocated, comprising:
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a. a scanner configured to perform a first scan, such that the scanner, for a set of radio nodes connected to a services node, causes the first scan to be performed with respect to a subject radio node to determine a baseline set of transmission characteristics of neighboring radio nodes, the first scan measuring at least one transmission characteristic of a neighboring radio node with respect to the subject radio node; b. a detector for detecting if a radio node has been off-line for greater than a first predetermined duration of time; c. the scanner, further configured to cause a second scan to be performed with respect to the radio node when the radio node has been off-line for greater than the first predetermined duration of time, the second scan being performed once the radio node is back online, the second scan measuring at least one transmission characteristic of a neighboring radio node; and d. a signal transmitter configured to transmit a signal indicating that the radio node that has been off-line for greater than the first predetermined duration of time has been relocated when a determination has been made that the radio node has been relocated by a controller performing the steps of; identifying a number (N) of neighboring radio nodes to compare changes in the at least one transmission characteristic; calculating a score based on a number of new radio nodes found in the second scan which were not found in the first scan and based on a number of radio nodes not found in the second scan which were found in the first scan and based on a change of the at least one transmission characteristic for one or more of the neighbor nodes between the first scan and the second scan; and determining that the radio node has been relocated when the score is greater than a predetermined threshold. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification