Method and apparatus for operating system in cellular mobile communication system

Patent metadata

Field	Value
Publication number	US-2016183233-A1
Application number	US-201514973795-A
Country	US
Kind code	A1
Filing date	Dec 18, 2015
Priority date	Dec 19, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

A base station including a plurality of antenna assemblies in a mobile communication system divides an ultra wideband into a plurality of unit-bands (UBs), forms a plurality of beams by the plurality of antenna assemblies, groups a plurality of beam component carriers distinguished by the plurality of UBs into beam component carriers that belong to the same UB to operate the grouped beam component carriers as a plurality of cells, and configures one cell among the plurality of cells as a cell for movement of a terminal.

First claim

What is claimed is:

1 . A method for operating a system in a base station including a plurality of antenna assemblies in a mobile communication system, the method comprising:
dividing an ultra wideband into a plurality of unit-bands (UBs); forming a plurality of beams by the plurality of antenna assemblies; grouping a plurality of beam component carriers distinguished by the plurality of UBs into beam component carriers that belong to the same UB with respect to each beam to operate the grouped beam component carriers as a plurality of cells; and configuring one cell among the plurality of cells as a cell for movement of a terminal.

2 . The method of claim 1 , further comprising
allocating the same resource by pairing the beam component carriers based on interference among the beam component carriers that belong to the same UB.

3 . The method of claim 2 , wherein
the allocating includes estimating interference based on feedback information from a plurality of terminals and pairing beam component carriers in which the interference does not occur, and the feedback information includes information on a reference signal of a detected beam component carrier.

4 . The method of claim 1 , wherein
the configuring includes transmitting a common reference signal through the plurality of beam component carriers constituting each cell, and supporting, when cell handover is determined based on an average value of a received strength measured from the common reference signal by the terminal, the cell handover.

5 . The method of claim 1 , wherein
the configuring includes transmitting unique reference signals from the plurality of beam component carriers constituting each cell, respectively, and supporting, when beam switching is determined based on the received strength of the reference signal by the terminal, the beam switching.

6 . The method of claim 1 , further comprising:
transmitting measurement control information associated with beam tracking to the terminal through system information of a cell in which the terminal resides when the terminal is in an idle state; and transmitting the measurement control information through a dedicated channel of an accessed cell when the terminal is in an accessed state, wherein the cell handover or the beam switching is determined by the terminal based on the beam tracking.

7 . The method of claim 1 , wherein
the configuring includes aggregating residual beam component carriers other than a beam component carrier of a cell for movement of the terminal among a plurality of beam component carriers in a beam in which the terminal resides.

8 . The method of claim 1 , wherein
the cell for the movement of the terminal is a cell of the same UB as a neighboring base station or a cell of a different UB from the neighboring base station.

9 . The method of claim 1 , wherein
the configuring includes executing advanced resource preparation of at least one neighboring beam corresponding to 1 tier around a beam which the terminal currently accesses in the configured cell.

10 . The method of claim 9 , wherein
the configuring further includes changing, by the terminal, a radio access link from a serving beam of the configured cell to a target beam, performing resource release of beams of which advanced resource preparation is not required among beams of which advanced resource preparation is made, and executing the advanced resource preparation of new beams of which advanced resource preparation is required.

11 . The method of claim 10 , wherein
the changing includes recovering, by the terminal, a failure of the radio access link to the target beam when the failure is detected in the radio access link with the serving beam.

12 . The method of claim 11 , wherein
the recovering includes requesting and receiving context information of the terminal from the neighboring base station when there is no context information of the terminal.

13 . The method of claim 10 , wherein
the target beam is a beam controlled by a base station controlling the serving beam or includes a beam controlled by a base station different from the base station controlling the serving beam.

14 . The method of claim 10 , wherein
the target beam is the serving beam or includes a different beam from the serving beam.

15 . The method of claim 9 , wherein
the configuring further includes transmitting advanced resource preparation information of at least one neighboring beam to the terminal.

16 . An apparatus for operating a system in a base station operating a plurality of beam in a mobile communication system, the apparatus comprising:
a processor dividing an ultra wideband into a plurality of unit-bands (UBs), a plurality of beams including a plurality of beam component carriers using the plurality of UBs, grouping beam component carriers using the same UB to operate a plurality of UB grouping cells, and supporting movement of a terminal by configuring one cell among the plurality of UB grouping cells as a cell for movement of the terminal; and a transceiver transceiving signaling for the movement of the terminal with the terminal or an adjacent base station.

17 . The apparatus of claim 16 , wherein
the processor allocates the same resource by pairing beam component carriers which do not interfere with each other among the beam component carriers that belong to the same UB.

18 . The apparatus of claim 16 , wherein
the processor aggregates and operates residual beam component carriers other than a beam component carrier of a cell for movement of the terminal among a plurality of beam component carriers in a beam in which the terminal resides.

19 . The apparatus of claim 16 , wherein
the processor executes advanced resource preparation of at least one neighboring beam corresponding to 1 tier around a beam which the terminal currently accesses in the configured cell, and when the terminal changes a radio access link from a serving beam to a target beam, the processor performs resource release of beams of which advanced resource preparation is not required among beams of which advanced resource preparation is made, and executes the advanced resource preparation of new beams of which advanced resource preparation is required.

20 . The apparatus of claim 16 , wherein
the transceiver receives a context information request of the terminal from the neighboring base station, and the processor verifies context information of the corresponding terminal and transmits the context information of the corresponding terminal through the transceiver.

Assignees

• Korea Electronics Telecomm

Inventors

• Park Soongi

Classifications

• H04W24/08

  Testing, {supervising or monitoring} using real traffic · CPC title

• H04W36/30

  by measured or perceived connection quality data · CPC title

• H04W72/541

  using the level of interference · CPC title

• H04W72/046 Primary

  the resource being in the space domain, e.g. beams · CPC title

• H04B7/0617

  for beam forming · CPC title