A wireless device receives messages indicating CSI measurement resources of cells
belonging to at least two base stations or belonging to at least two sectors of a base station …

A base station receives a message comprising at least one index identifying a subset of a
second plurality of beamforming codewords. Each of the second plurality of beamforming …

According to one or more aspects, a wireless device may transmit a message to a serving
base station comprising parameters indicating that the wireless device supports …

According to one or more aspects, a serving base station may transmit a message to a target
base station based on a handover decision for a wireless device. The message may include …

Jul. 12, 2015, now Pat. No. 9, 450, 656, which is a continuation of application No. 14/705,
497, filed on May 6, 2015, now Pat. No. 9, 131, 414, which is a continuation of application …

H04/24/02(2009.01) H04B 7/0456(2017.01) H04. 736/00(2009.01) H04. 736/30(2009.01)
H04. 736/24(2009.01) H04L 25/03(2006.01) H04L 27/26(2006.01) H04B 7/06(2006.01) …

A first base station receives a first message comprising one or more parameters indicating
whether a wireless device supports configuration of a number of channel state information …

A first base station transmits a message to a second base station after a handover decision
for a wireless device supporting beamforming and multiple carrier configurations. The …

A wireless receives at least one channel state input information element (IE) from a first base
station. The wireless device computes a precoding matrix indicator (PMI) employing, at least …

According to some aspects, a first base station employing a first beamforming codebook may
receive a second beamforming codebook from a second base station. The first beamforming …