IP Library Granted Patent US 8,320,343
Granted Patent B2
US 8,320,343 · App. 10/528,019 · Granted Nov 27, 2012

Radio cell station apparatus, reference signal allocation method and reference signal allocation program

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Quick Facts
Patent No.
US 8,320,343
App. No.
10/528,019
Granted
Nov 27, 2012
Kind
B2
Abstract

A CS searches in advance for information about unique words used by neighboring CSs to hold the information in a storage unit. When an LCH establishment request is made by a PS in the cell of the CS, it is confirmed whether or not there is an empty traffic slot. Further, with reference to the unique word information of the neighboring CSs of the same frequency and the same slot as the empty slot to be allocated, an unused unique word pattern is allocated.

Claims (12)

1. A radio cell station apparatus in a mobile communication system, signals transmitted/received in said mobile communication system including already-known reference signals, comprising:

storage means for storing a plurality of reference signals sent along a radio frequency different from each other, wherein a cell station number is assigned to each cell station; and

reference signal allocation means for, when a connection request is received from a terminal device at a cell station assigned a receiving cell station number, allocating an i-th reference signal corresponding to value i of a remainder of division of said receiving cell station number by total number m of reference signals stored in said storage means, where m is a natural number and i is a natural number of at most m.

2. A reference signal allocation method performed by a radio cell station apparatus in a mobile communication system, signals transmitted/received in said mobile communication system including already-known reference signals, comprising the steps of:

storing a plurality of reference signals sent along a radio frequency different from each other, wherein a cell station number is assigned to each cell station; and

allocating, when a connection request is received from a terminal device at a cell station assigned a receiving cell station number, an i-th reference signal corresponding to value i of a remainder of division of said receiving cell station number by total number m of said reference signals stored, where m is a natural number and i is a natural number of at most m.

3. A tangible computer readable medium containing program code which, when executed, causes a radio cell station apparatus in a mobile communication system to execute a reference signal allocation method, signals transmitted/received in said mobile communication system including already-known reference signals, comprising:

program code for storing a plurality of reference signals sent along a radio frequency different from each other, wherein a cell station number is assigned to each cell station; and

program code for allocating, when a connection request is received from a terminal device at a cell station assigned a receiving cell station number, an i-th reference signal corresponding to value i of a remainder of division of said receiving cell station number by total number m of said reference signals stored, where m is a natural number and i is a natural number of at most m.

4. A radio cell station apparatus in a mobile communication system, signals transmitted/received in said mobile communication system including already-known reference signals, comprising:

a storage unit configured to store a plurality of reference signals sent along a radio frequency different from each other, wherein a cell station number is assigned to each cell station; and

a reference signal allocation unit configured to allocate, when a connection request is received from a terminal device at a cell station assigned a receiving cell station number, an i-th reference signal corresponding to value i of a remainder of division of said receiving cell station number by total number m of reference signals stored in said storage unit, where m is a natural number and i is a natural number of at most m.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2009
From: SANYO ELECTRIC CO., LTD.
To: KYOCERA CORPORATION
Reel/Frame 022959/0760 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 16, 2005
From: ITO, TADAYOSHI
To: SANYO ELECTRIC CO., LTD.
Reel/Frame 017466/0113 →