Mimo configuration for ues with hybrid uniform and non-uniform antenna ports

An apparatus comprising at least one processor;

• and at least one memory storing instructions that, when executed by the at least one processor, cause a user equipment at least to perform:
• for the user equipment supporting a hybrid antenna port configuration comprising uniform antenna ports and non-uniform antenna ports, determining a configuration for two patch feed connections on dual polarized panel elements of an antenna array to be used for transmission on the uniform antenna ports;
• receiving, from an access node, information indicative of a first uplink reference signal configuration associated with the non-uniform antenna ports and a second uplink reference signal configuration associated with the uniform antenna ports;
• and
• transmitting, to the access node, at least one of a first set of uplink reference signals based on the first uplink reference signal configuration associated with the non-uniform antenna ports or a second set of uplink reference signals based on the second uplink reference signal configuration associated with the uniform antenna ports and based on the configuration for the two patch feed connections.

A method, comprising:

• for a user equipment supporting a hybrid antenna port configuration comprising uniform antenna ports and non-uniform antenna ports, determining a configuration for two
• patch feed connections on dual polarized panel elements of an antenna array to be used for transmission on the uniform antenna ports;
• receiving, by the user equipment from an access node, information indicative of a first uplink reference signal configuration associated with the non-uniform antenna ports and a second uplink reference signal configuration associated with the uniform antenna ports;
• and
• transmitting, to the access node by the user equipment, at least one of a first set of uplink reference signals based on the first uplink reference signal configuration associated with the non-uniform antenna ports or a second set of uplink reference signals based on the second uplink reference signal configuration associated with the uniform antenna ports and based on the configuration for the two patch feed connections.

A non-transitory computer readable medium comprising program instructions that, when executed by an apparatus, cause a user equipment to perform at least the following:

• for the user equipment supporting a hybrid antenna port configuration comprising uniform antenna ports and non-uniform antenna ports, determining a configuration for two patch feed connections on dual polarized panel elements of an antenna array to be used for transmission on the uniform antenna ports;
• receiving, by the user equipment from an access node, information indicative of a first uplink reference signal configuration associated with the non-uniform antenna ports and a second uplink reference signal configuration associated with the uniform antenna ports;
• and
• transmitting, to the access node by the user equipment, at least one of a first set of uplink reference signals based on the first uplink reference signal configuration associated with the non-uniform antenna ports or a second set of uplink reference signals based on the second uplink reference signal configuration associated with the uniform antenna ports and based on the configuration for the two patch feed connections.