Method and device for switching between base stations

A base station, comprising:

• a base station interface module, which is configured to send first handover request messages to neighboring base stations, and receive request response messages comprising judgment results of whether to accept handover returned by the neighboring base stations;
• a selection module, which is configured to determine one destination base station from the neighboring base stations which are able to accept the handover, and send a confirmation handover message to said destination base station through the base station interface module;
• and
• a user interface module, which is configured to send a handover indication message for indicating that a user equipment hands over to the destination base station to the user equipment after said base station interface module receives a confirmation handover response message comprising allocated resources;
• wherein said selection module is configured to determine one destination base station from the neighboring base stations which are able to accept the handover in following ways:
• determining, from the neighboring base stations which are able to accept the handover, a neighboring base station which first sends the request response message of accepting the handover as the destination base station;
• or
• determining, from the neighboring base stations which are able to accept the handover, a neighboring base station of which a signal quality of the request response message is the best as the destination base station;
• wherein said selection module is configured to determine, from the neighboring base stations which are able to accept the handover, a neighboring base station of which a signal quality of the request response message is the best as the destination base station in following ways:
• determining a request response message with the best signal quality and denoting accepting the handover from first n1 received request response messages, and taking the neighboring base station corresponding to the determined request response message as the neighboring base station, wherein n1 is a preset parameter value;
• or
• determining a request response message with the best signal quality from first n2 received request response messages which denote accepting the handover, and taking the neighboring base station corresponding to the determined request response message as the neighboring base station, wherein n2 is a preset parameter value.

A base station, comprising:

• a base station interface module, which is configured to:
• receive a handover request message;
• a judgment module, which is configured to:
• judge whether to accept the handover according to information in the handover request message, and send a request response message to a base station which sends the handover request message through the base station interface module;
• and
• an allocation module, which is configured to:
• allocate resources for a user equipment after the base station interface module receives the confirmation handover message, and send a confirmation handover response message comprising the allocated resources to the base station which sends the handover request message through the base station interface module;
• wherein said judgment module judging whether to accept the handover according to information in the handover request message refer to:
• judging whether a local load reaches a preset load threshold, if the local load reaches the preset load threshold, refusing the handover, and if the local load does not reach the preset load threshold, accepting the handover;
• judging whether services required by a user equipment are provided locally, if the services required by the user equipment are provided locally, accepting the handover, and if the services required by the user equipment are not provided locally, refusing the handover;
• judging whether local available resources satisfy requirements of a user equipment, if the local available resources satisfy the requirements of the user equipment, accepting the handover, if the local available resources do not satisfy the requirements of the user equipment, refusing the handover;
• or
• judging whether a user equipment has abilities to work locally, if the user equipment has the abilities to work locally, accepting the handover, if the user equipment has not the abilities to work locally, refusing the handover.