EXTENDING EARFCN VALUE RANGE IN GERAN

摘要

An E-UTRAN neighbor cell list is broadcast in a GERAN network using the extended EARFCN value ranges (i.e., 18 bits). Extending the EARFCN value ranges in GERAN and signaling EARFCN values within the extended EARFCN value range to inter-RAT-capable UEs that camp in GERAN allow GERAN to support continued inter-RAT mobility between GERAN and E-UTRAN networks. E-UTRAN neighbor cell information may be communicated to UEs in the GERAN network by System Information message broadcasts using the extended EARFCN value ranges.

主权项

1. A method, performed by a multi-RAT-capable User Equipment (UE) that supports an extended E-UTRA Absolute Radio Frequency Channel Number (EARFCN) value range in GSM EDGE Radio Access Network (GERAN), the UE capable of operating in a GERAN network, the method comprising:
determining that a System Information (SI) 23 message is broadcast by the GERAN network; in response to determining that the SI23 message is broadcast, determining that the GERAN network broadcasts E-UTRAN neighbor cell information using the extended EARFCN value range; and processing the E-UTRAN neighbor cell information using the extended EARFCN value range.