A communication device for reporting control information, the communication device comprising: a storage unit for storing instructions of: receiving a first period for transmitting first antenna array dimension precoding information from a network ; receiving a second period for transmitting second antenna array dimension precoding information from the network, wherein the first period is different from the second period , and the first period and the second period are received in a control signal; transmitting the first antenna array dimension precoding information to the network according to the first period and a first time instant; transmitting the second antenna array dimension precoding information to the network according to the second period and a second time instant, wherein the first time instant and the second time instant are different; receiving a third period for transmitting the first antenna array dimension precoding information from the network; and transmitting the first antenna array dimension precoding information to the network according to the third period; and a processing means, coupled to the storage unit, configured to execute the instructions stored in the storage unit. a storage unit for storing instructions of: receiving a first period for transmitting first antenna array dimension precoding information from a network ; receiving a second period for transmitting second antenna array dimension precoding information from the network, wherein the first period is different from the second period , and the first period and the second period are received in a control signal; transmitting the first antenna array dimension precoding information to the network according to the first period and a first time instant; transmitting the second antenna array dimension precoding information to the network according to the second period and a second time instant, wherein the first time instant and the second time instant are different; receiving a third period for transmitting the first antenna array dimension precoding information from the network; and transmitting the first antenna array dimension precoding information to the network according to the third period; and receiving a first period for transmitting first antenna array dimension precoding information from a network ; receiving a second period for transmitting second antenna array dimension precoding information from the network, wherein the first period is different from the second period , and the first period and the second period are received in a control signal; transmitting the first antenna array dimension precoding information to the network according to the first period and a first time instant; transmitting the second antenna array dimension precoding information to the network according to the second period and a second time instant, wherein the first time instant and the second time instant are different; receiving a third period for transmitting the first antenna array dimension precoding information from the network; and transmitting the first antenna array dimension precoding information to the network according to the third period; and a processing means, coupled to the storage unit, configured to execute the instructions stored in the storage unit. <EOS>