Method and apparatus of physical cell identifier allocation
OwnerHenrik Olofsson, Xuelong Wang +3inventors
InventorsHenrik Olofsson, Xuelong Wang, Binsong Tang, Huan Zhang, Xiaoli Shi
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Abstract
A method and apparatus of allocating a Physical Cell Identifier (PCI) is disclosed in an embodiment of the present invention allowing different cells to operate on different frequencies while eliminating or reducing risk of PCI conflicts. Thereby PCI allocation is provided that is effective also in a multi-frequency environment.
Claims32
A method of physical cell identifier allocation in a wireless cellular communications system, comprising:
- communication of at least one signaling message comprising neighboring cell information of at least one cell neighboring a first cell in addition to information on the first cell, said neighboring cell information comprising a physical cell identifier, and
- transfer of the at least one signaling message from a first eNB serving the first cell to a second eNB.
A method of physical cell identifier allocation in a wireless cellular communications system, comprising:
- communication of at least one signaling message comprising neighboring cell information of at least one cell neighboring a first cell, said neighboring cell information comprising a physical cell identifier irrespective of operating frequency of the at least one cell, which is neighboring said first cell, and its at least one neighboring cell;
- and
- determination of neighboring cell operating frequency on the basis of said neighboring cell information in response to the communicated information.
A method of physical cell identifier allocation, comprising:
- obtaining neighboring cell information from at least one cell neighboring a first cell, said neighboring cell information comprising physical cell identifier information of at least one cell, which is neighboring said at least one cell neighboring the first cell, wherein the neighboring cell information comprises operation frequency information corresponding to the physical cell identifier information.
An apparatus of physical cell identifier allocation, said apparatus comprising:
- an information obtaining module configured to obtain neighboring cell information of at least one cell neighboring a cell served by the apparatus, said neighboring cell information comprising physical cell identifier information of at least one cell which is neighboring said at least one cell neighboring said cell served by the apparatus.
An apparatus of physical cell identifier allocation, said apparatus comprising:
- processing circuitry arranged to compile a signaling message comprising neighboring cell information, wherein the neighboring cell information comprises an element of physical cell identifier of at least one cell neighboring a first cell served by the apparatus;
- and
- a transmitter arranged to transmit the signaling message as controlled by the processing circuitry.
Dependencies are inferred from the claim text.