Method and a network node for muting antenna elements of an active antenna system
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsAndreas Nilsson, Fredrik Athley, Martin Johansson, Sven Petersson
Life of this patent
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Abstract
A method performed in a network node of a communication system for muting antenna elements of an active antenna system. The method comprises determining, based on a priori information relating to performance of the communication system, an antenna element separation between one or more pairs of active antenna elements of at least a subset of all active antenna elements of the active antenna system; and muting at least one antenna element such that the determined antenna element separation is obtained between each of the one or more pairs of active antenna elements of at least the subset of all active antenna elements.
Claims16
A network node of a communication system for muting antenna elements of an active antenna system comprising M antenna elements wherein each adjacent pair of antenna elements is separated by a first antenna element separation, the network node being configured to:
- obtain information relating to performance in the communication system dependent on antenna element separation, wherein:
- the information comprises a set of performance data points,
- each performance data point being associated with an antenna element separation, and
- further wherein the set of performance data points comprises:
- a first performance data point indicating a performance of the first antenna element separation for a first traffic load;
- and
- a second performance data point indicating a performance of the second antenna element separation for the first traffic load, the second antenna element separation being greater than the first antenna element separation;
- based on the first and second performance data points, determining that the second antenna element separation is expected to provide a greater performance than the first antenna element separation;
- and
- in response to determining that the second antenna element separation is expected to provide a greater performance than the first antenna element separation, select a set of N of the M antenna elements to mute and mute the selected set of N antenna elements, wherein, after said muting, each adjacent pair of non-muted antenna elements is separated by the second antenna element separation.
A method performed by a network node of a communication system for muting antenna elements of an active antenna system comprising M antenna elements wherein each adjacent pair of antenna elements is separated by a first antenna element separation, the method comprising:
- obtaining information relating to performance in the communication system dependent on antenna element separation, wherein the information comprises a set of performance data points, each performance data point being associated with an antenna element separation, and further wherein the set of performance data points comprises a first performance data point indicating a performance of the first antenna element separation for a first traffic load and a second performance data point indicating a performance of a second antenna element separation for the first traffic load, the second antenna element separation being greater than the first antenna element separation;
- based on the first and second performance data points, determining that the second antenna element separation is expected to provide a greater performance than the first antenna element separation;
- and
- in response to determining that the second antenna element separation is expected to provide a greater performance than the first antenna element separation, selecting a set of N of the M antenna elements to mute and muting the selected set of N antenna elements, wherein
- after muting the selected set of N antenna elements, each adjacent pair of non-muted antenna elements is separated by the second antenna element separation.
Dependencies are inferred from the claim text.