Method and apparatus for facilitating a hand-in of user equipment to femto cells

摘要

Aspects are disclosed for facilitating a hand-in to a femto cell. An identifier is assigned to a femto cell in which the identifier is based on a scrambling parameter and a timing parameter. A relationship between the identifier and the femto cell is then communicated. In another embodiment, a user equipment report is received, which includes attributes related to a signal broadcast by a femto cell. An identifier associated with the femto cell is ascertained from an attribute included in the report. The femto cell is then identified based on the identifier. In a further embodiment, a timing parameter is received, and a scrambling parameter is set. A signal including the scrambling parameter is then broadcast according to an offset related to the timing parameter. In yet another embodiment, a femto cell is detected during an active call. An identifier associated with the femto cell is then ascertained and reported.

主权项

1. A method that facilitates a hand-in of a user equipment to a femto cell, comprising:
identifying, by a network entity, a macro node assigned for the femto cell; assigning, by the network entity, a unique identifier to the femto cell, wherein the unique identifier is taken from a Cartesian product of a set of primary scrambling codes and a set of offset values, and the set of offset values is related to a timing parameter including a first system frame number of the macro node; and transmitting an assignment of the unique identifier and the femto cell and the timing parameter to the femto cell for determining a second system frame number of the femto cell based on the first system frame number of the macro node and an offset value in the unique identifier, wherein the first and second system frame numbers are configured to synchronize with each other based on a periodic increment of the first system frame number received by the femto cell via a downlink channel to avoid time drifts, the periodic increment of the first system frame number is configured to be broadcast through a transport channel, and the transport channel is configured to be mapped to the downlink channel.