Handover method and apparatus for multiple transmission and reception points
AssigneeElectronics and Telecommunications Research Institute
InventorSung Cheol CHANG
Life of this patent
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Abstract
A handover method of a terminal may comprise: performing a procedure to search for neighbor TRPs including a target TRP; transmitting a neighbor TRP information report message including information on searched neighbor TRPs to a current serving TRP; receiving, from a DU to which the terminal is connected and through the current serving TRP, a command indicating TRP switching for switching a serving TRP of the terminal from the current serving TRP to the target TRP; and performing an access procedure to the target TRP according to the command indicating the TRP switching, wherein the TRP switching is determined based on the neighbor TRP information report message.
Claims20
A handover method of a terminal, comprising:
- performing a procedure to search for neighbor transmission and reception points (TRPs) including a target TRP;
- transmitting a neighbor TRP information report message including information on searched neighbor TRPs to a current serving TRP;
- receiving, from a distributed unit (DU) to which the terminal is connected and through the current serving TRP, a command indicating TRP switching for switching a serving TRP of the terminal from the current serving TRP to the target TRP;
- and
- performing an access procedure to the target TRP according to the command indicating the TRP switching,
- wherein the TRP switching is determined based on the neighbor TRP information report message.
A handover method of a terminal, comprising:
- detecting a beam change within a dual access transmission and reception point (TRP) through a beam search procedure;
- reporting a beam search result indicating the beam change to a current serving distributed unit (DU) through the dual access TRP;
- receiving, from a central unit (CU) to which the terminal is connected and through the dual access TRP, a command message indicating DU switching for switching a serving TRP of the terminal from the current serving DU to a target DU;
- and
- performing an access procedure to the target DU.
A method of a terminal, comprising:
- receiving a master information block (MIB) from a master distributed unit (DU) connected to a first transmission and reception point (TRP) through the first TRP;
- and
- receiving, through the first TRP, a first system information block (SIB) of the master DU and a second SIB of a first secondary DU connected to the first TRP,
- wherein the master DU and at least one secondary DU including the first secondary DU belong to a same central unit (CU) or different CUs, and different radio resources are allocated to the master CU and the first secondary DU.
Dependencies are inferred from the claim text.