Method and apparatus for communication site planning
First Claim
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1. A method of selecting transmission mode in a wireless network cell, comprising the steps of:
- receiving in an infrastructure node at least one wireless signal from a mobile node in the wireless cell;
the signal being received in a plurality of antennas;
analyzing in the infrastructure node the signal using an algorithm for determining a spectrum flatness property of the signal;
storing in the infrastructure node in a database the determined flatness property of the signal in relation to a geographical position in the wireless cell;
using the determined flatness property for selecting transmission mode in communication between the infrastructure node and to a node located at the geographical position.
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Abstract
The present invention relates to a solution for determining wireless communication cell characteristics related to wireless MIMO transmission mode and dynamically selecting suitable communication transmission mode for certain parts of the wireless communication cell. The solution uses a flatness spectrum analysis of received impulse response from a plurality of measurement points in the cell using a plurality of antennas in a wireless network access gateway, e.g. a base station.
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Citations
12 Claims
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1. A method of selecting transmission mode in a wireless network cell, comprising the steps of:
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receiving in an infrastructure node at least one wireless signal from a mobile node in the wireless cell;
the signal being received in a plurality of antennas;analyzing in the infrastructure node the signal using an algorithm for determining a spectrum flatness property of the signal; storing in the infrastructure node in a database the determined flatness property of the signal in relation to a geographical position in the wireless cell; using the determined flatness property for selecting transmission mode in communication between the infrastructure node and to a node located at the geographical position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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- 11. A communication node (4) for controlling wireless communication in a communication network, the node comprising a transceiver portion (208), a processing unit (201), a memory unit (202), and a network communication interface (203), the transceiver portion is arranged to communicate with a plurality of antennas (1), characterized in that the processing unit (201) is arranged to receive at least one wireless signal via the transceiver portion from a mobile node, to analyze the received signal using a flatness algorithm, to characterize a geographical position in a communication cell of the mobile node according to a flatness index, and to use the determined flatness index when selecting transmission mode between the communication node and a mobile node located at the geographical position.
Specification