A method for mediating a communication link by a first electronic device, the method comprising: transmitting, via a first Near Field Communication, NFC, communication link, a first handover request message from the first electronic device to a second electronic device; receiving, via the first NFC communication link, a first handover response message from the second electronic device in response to the first handover request message, the first handover response message including first alternative carrier information supported by the second electronic device; transmitting, via a second NFC communication link, a second handover request message from the first electronic device to a third electronic device; receiving, via the NFC second communication link, a second handover response message from the third electronic device in response to the second handover request message, the second handover response message including second alternative carrier information supported by the third electronic device; wherein each of the first handover request message and the second handover request message includes handover carried record which is used for identifying an alternative carrier, and wherein the handover carrier record includes a carrier type format field, a carrier type length field, a carrier type field and a carrier data field; and transmitting a handover initiate request message to the second electronic device via the first NFC communication link or to the third electronic device via the second NFC communication link, to establish the communication link for connecting the second electronic device and the third electronic device through a selected alternative carrier, the selected alternative carrier being determined based on the first alternative carrier information and the second alternative carrier information. transmitting, via a first Near Field Communication, NFC, communication link, a first handover request message from the first electronic device to a second electronic device; receiving, via the first NFC communication link, a first handover response message from the second electronic device in response to the first handover request message, the first handover response message including first alternative carrier information supported by the second electronic device; transmitting, via a second NFC communication link, a second handover request message from the first electronic device to a third electronic device; receiving, via the NFC second communication link, a second handover response message from the third electronic device in response to the second handover request message, the second handover response message including second alternative carrier information supported by the third electronic device; wherein each of the first handover request message and the second handover request message includes handover carried record which is used for identifying an alternative carrier, and wherein the handover carrier record includes a carrier type format field, a carrier type length field, a carrier type field and a carrier data field; and transmitting a handover initiate request message to the second electronic device via the first NFC communication link or to the third electronic device via the second NFC communication link, to establish the communication link for connecting the second electronic device and the third electronic device through a selected alternative carrier, the selected alternative carrier being determined based on the first alternative carrier information and the second alternative carrier information.