An embodiment of the present disclosure may provide an inter-MeNB handover method in a small cell system, including: making, by a source MeNB and/or target MeNB, a determination as to whether to maintain a SeNB when handover is performed; and triggering different handover processes according to a result of the determination as to whether to maintain the SeNB. Another embodiment of the present disclosure may further provide an inter-MeNB handover device in a small cell system. With the inter-MeNB handover method and device in a small cell system provided by the present disclosure, unnecessary deletion and re-establishment of the bearers at the SeNB for the UE may be reduced. False bearer deletion may be avoided and data forwarding may be reduced. Furthermore, the SeNB may be maintained according to network deployment and SGW re-selection may be supported. Therefore, system capacity and transmission speed of the data may be improved.

An embodiment of the present disclosure may provide an inter-MeNB handover method in a small cell system, including: making, by a source MeNB and/or target MeNB, a determination as to whether to maintain a SeNB when handover is performed; and triggering different handover processes according to a result of the determination as to whether to maintain the SeNB. Another embodiment of the present disclosure may further provide an inter-MeNB handover device in a small cell system. With the inter-MeNB handover method and device in a small cell system provided by the present disclosure, unnecessary deletion and re-establishment of the bearers at the SeNB for the UE may be reduced. False bearer deletion may be avoided and data forwarding may be reduced. Furthermore, the SeNB may be maintained according to network deployment and SGW re-selection may be supported. Therefore, system capacity and transmission speed of the data may be improved.

Described are methods, apparatuses, and computer program products for bandwidth part (BWP) handling. Apparatus can receive information on limitation(s) of BWP(s) supported in a cell of the base station and inhibit a terminal from accessing the cell based on limitation(s) of the BWP(s) supported in the cell and limitation(s) of BWP(s) supported by the terminal. Apparatus can select access parameter(s) based on limitation(s) of the BWP(s) supported in the cell and limitation(s) of the BWP(s) supported by the terminal, and instruct the terminal to reselect/camp on the cell using the access parameter(s). BWP(s) supported by the terminal can include a network BWP usable for early data transmission. Apparatus can allow/inhibit cell access by terminal based on, e.g., type of access or terminal type. Apparatus can instruct base station to provide information on limitation(s) of BWP(s) provided by the base station. Each BWP can be subcarrier spacing specific.

Described are methods, apparatuses, and computer program products for bandwidth part (BWP) handling. Apparatus can receive information on limitation(s) of BWP(s) supported in a cell of the base station and inhibit a terminal from accessing the cell based on limitation(s) of the BWP(s) supported in the cell and limitation(s) of BWP(s) supported by the terminal. Apparatus can select access parameter(s) based on limitation(s) of the BWP(s) supported in the cell and limitation(s) of the BWP(s) supported by the terminal, and instruct the terminal to reselect/camp on the cell using the access parameter(s). BWP(s) supported by the terminal can include a network BWP usable for early data transmission. Apparatus can allow/inhibit cell access by terminal based on, e.g., type of access or terminal type. Apparatus can instruct base station to provide information on limitation(s) of BWP(s) provided by the base station. Each BWP can be subcarrier spacing specific.

The present disclosure relates to a serving wireless communication node (AP.sub.1) in a wireless communication system (1), wherein the serving node (AP.sub.1) is adapted to determine that a served user terminal (2) is going to enter a zone (3) that switches between being reachable and unreachable for the serving node (AP.sub.1), and to predict data (x.sub.m+1 . . . x.sub.n) to be transmitted to the user terminal (2) for at least a part of the time the user terminal (2) is in the zone (3) and is unreachable for the serving node (AP.sub.1). When the zone (3) is reachable, the sewing node (AP.sub.1) is adapted to transfer predicted data (x.sub.m+1 . . . x.sub.n) to a cache node (AP.sub.C) positioned within the zone (3), enabling the cache node (AP.sub.C) to transfer the predicted data (x.sub.m+1 . . . x.sub.n) to the user terminal (3) when the user terminal (2) is in the zone (3) and is unreachable for the serving node (AP.sub.1).

The present disclosure relates to a serving wireless communication node (AP.sub.1) in a wireless communication system (1), wherein the serving node (AP.sub.1) is adapted to determine that a served user terminal (2) is going to enter a zone (3) that switches between being reachable and unreachable for the serving node (AP.sub.1), and to predict data (x.sub.m+1 . . . x.sub.n) to be transmitted to the user terminal (2) for at least a part of the time the user terminal (2) is in the zone (3) and is unreachable for the serving node (AP.sub.1). When the zone (3) is reachable, the sewing node (AP.sub.1) is adapted to transfer predicted data (x.sub.m+1 . . . x.sub.n) to a cache node (AP.sub.C) positioned within the zone (3), enabling the cache node (AP.sub.C) to transfer the predicted data (x.sub.m+1 . . . x.sub.n) to the user terminal (3) when the user terminal (2) is in the zone (3) and is unreachable for the serving node (AP.sub.1).

In one embodiment, a method includes receiving a trigger to dynamically modify a serving site of a communication endpoint, wherein the communication endpoint is registered to receive digital communication service from a first serving site. The method further includes determining a stored serving-site selection policy applicable to the communication endpoint. The method also includes selecting a second serving site for the communication endpoint based, at least part, on a stored serving-site selection policy. Also, the method includes determining endpoint-configuration requirements of the second serving site. Furthermore, the method includes dynamically generating endpoint configurations that satisfy the endpoint-configuration requirements of the second serving site. Moreover, the method includes writing the generated endpoint configurations to the communication endpoint. Additionally, the method includes causing the communication endpoint to register to receive digital communication service from the second serving site in place of the first serving site.

In one embodiment, a method includes receiving a trigger to dynamically modify a serving site of a communication endpoint, wherein the communication endpoint is registered to receive digital communication service from a first serving site. The method further includes determining a stored serving-site selection policy applicable to the communication endpoint. The method also includes selecting a second serving site for the communication endpoint based, at least part, on a stored serving-site selection policy. Also, the method includes determining endpoint-configuration requirements of the second serving site. Furthermore, the method includes dynamically generating endpoint configurations that satisfy the endpoint-configuration requirements of the second serving site. Moreover, the method includes writing the generated endpoint configurations to the communication endpoint. Additionally, the method includes causing the communication endpoint to register to receive digital communication service from the second serving site in place of the first serving site.

Some approaches are provided for a user equipment (UE) to acquire the accurate reference timing of a target cell during the handover procedure. The scheme ensures that UE meets the synchronization accuracy requirement during the process of handover and the continuity of time sensitive services is guaranteed.

Some approaches are provided for a user equipment (UE) to acquire the accurate reference timing of a target cell during the handover procedure. The scheme ensures that UE meets the synchronization accuracy requirement during the process of handover and the continuity of time sensitive services is guaranteed.