Method and apparatus for handover in heterogeneous system
AssigneeNokia Technologies Oy
InventorsYixue Lei, Haitao Li, Kodo Shu
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Abstract
Embodiments of the disclosure provide methods and apparatuses for handover in a heterogeneous network. According to the method, a candidate radio connectivity mode for use after handover from a source BS to a first target BS and/or a second target BS is determined; a first handover related message which comprises the candidate radio connectivity mode is sent to the source BS; and in response to receiving a second handover related message, the first target BS and/or the second target BS may be accessed, wherein the source BS is not associated with the first target BS, and wherein the first target BS is a LPN and is associated with the second target BS.
Claims21
1-42. (canceled)
A method, comprising:
- determining a candidate radio connectivity mode for use after handover from a source base station (BS) to at least one of a first target BS and a second target BS;
- sending to the source BS a first handover related message which comprises the candidate radio connectivity mode;
- and
- in response to receiving a second handover related message, accessing at least one of the first target BS and the second target BS,
- wherein the source BS is not associated with the first target BS, and
- wherein the first target BS is a low power node (LPN) and is associated with the second target BS.
An apparatus, comprising:
- at least one processor;
- and
- at least one memory including compute program instructions,
- wherein the at least one memory and computer program instructions are configured to, with the at least one processor, cause the apparatus at least to:
- determine a candidate radio connectivity mode for use after handover from a source base station (BS) to at least one of a first target BS and a second target BS;
- send to the source BS a first handover message which comprises the candidate radio connectivity mode;
- and
- in response to receiving a second handover related message from the source BS, access at least one of the first target BS and the second target BS,
- wherein the source BS is not associated with the first target BS, and
- wherein the first target BS is a low power node (LPN) and is associated with the second target BS.
An apparatus, comprising:
- at least one processor;
- and
- at least one memory including compute program instructions,
- wherein the at least one memory and computer program instructions are configured to, with the at least one processor, cause the apparatus at least to:
- in response to receiving from a use equipment (UE) a first handover related message comprising a candidate radio connectivity mode, which is for use after handover from a source base station (BS) to at least one of a first target BS and a second target BS, transmit the handover request to the second target BS;
- and
- in response to receiving an acknowledgement of the handover request, send a second handover related message to the UE,
- wherein the source BS is not associated with the first target BS, and
- wherein the first target BS is a low power node (LPN) and is associated with the second target BS.
Dependencies are inferred from the claim text.