| 摘要 |
A method of radio link monitoring (RLM) and radio link failure (RLF) handling over a small cell network is proposed. In a wireless network, a user equipment (UE) establishes a radio resource control (RRC) connection with a base station (eNB), which is UE anchor. The UE applies carrier aggregation for multiple component carriers (CCs) configured as multiple serving cells. The aggregated serving cells can be in the same eNB or in the other eNB, i.e., the drift eNB. The UE performs radio link monitoring over a primary serving cell (PCELL). The UE also performs radio link monitoring over a secondary serving cell (SCELL). The SCELL belongs to a cell group. When the radio link problem, i.e., RLF, happens in a serving cell, the UE and the eNB apply certain actions over the serving cell or all serving cells in the group. The RLF procedures in the anchor eNB and in the drift eNB are proposed. Both UE side and network side behaviors are included. |
