Combining uplink radio signals

A remote radio head controller for controlling an uplink contribution for combining uplink radio signals from a plurality of remote radio heads in at least one combiner, the remote radio head controller comprising:

• a processor;
• and
• a memory storing instructions that, when executed by the processor, causes the remote radio head controller to:
• obtain a number of available baseband processor devices for uplink processing, each available baseband processor device being connected to at least one of the at least one combiner;
• connect uplink signals from a set of zero or more remote radio heads in each one of the at least one combiner;
• determine a respective radio channel measurement for uplink radio communication from the first wireless device via the at least one combiner;
• repeat the instructions to connect and determine until radio channel measurements for uplink communication from the wireless device have been determined for all of the plurality of remote radio heads;
• select a first subset of at least one remote radio head from the plurality of remote radio heads for receiving radio communication from the first wireless device;
• and
• reduce an uplink contribution from at least one remote radio head, of the plurality of remote radio heads, which is not part of the first subset.

A remote radio head controller comprising:

• means for obtaining a number of available baseband processor devices for uplink processing, each available baseband processor device being connected to at least one of the at least combiner, each connected to one or more remote radio heads;
• means for connecting uplink signals from a set of zero or more remote radio heads in each one of the at least one combiner;
• means for determining a respective radio channel measurement for uplink radio communication from a first wireless device via the at least one combiner;
• means for repeating the connecting and determining until radio channel measurements for uplink communication from the wireless device have been determined for all of the plurality of remote radio heads;
• means for selecting a first subset of at least one remote radio head from the plurality of remote radio heads for receiving radio communication from the first wireless device;
• and
• means for reducing an uplink contribution from at least one remote radio head, of the plurality of remote radio heads, which is not part of the first subset.

A computer program for controlling remote radio head contribution by a plurality of remote radio heads in at least one combiner, the computer program comprising computer program code which, when run on a remote radio head controller, causes the remote radio head controller to:

• obtain a number of available baseband processor devices for uplink processing, each available baseband processor device being connected to at least one of the at least one combiner;
• connect uplink signals from a set of zero or more remote radio heads in each one of the at least one combiner;
• determine a respective radio channel measurement for uplink radio communication from the first wireless device via the at least one combiner;
• repeat the computer program code to connect and determine until radio channel measurements for uplink communication from the wireless device have been determined for all of the plurality of remote radio heads;
• select a first subset of at least one remote radio head from the plurality of remote radio heads for receiving radio communication from the first wireless device;
• and
• reduce an uplink contribution from at least one remote radio head, of the plurality of remote radio heads, which is not part of the first subset.