IP Library Granted Patent US 7,558,293
Granted Patent B2
US 7,558,293 · App. 11/213,518 · Granted Jul 7, 2009

Method for detecting initial operation mode in wireless communication system employing OFDMA scheme

Assignee: Samsung Electronics Co., Ltd.
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Quick Facts
Patent No.
US 7,558,293
App. No.
11/213,518
Granted
Jul 7, 2009
Kind
B2
Abstract

Disclosed is a method for detecting an initial operating mode in an OFDMA wireless communication system the method includes receiving from a BS a reference signal having a specific pattern, and detecting an initial operation mode according to the received reference signal.

Claims (54)

1. A method for acquiring synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

generating and transmitting, in a transmitter, a first sequence for acquiring synchronization with a receiver;

receiving the first sequence in the receiver; and

acquiring synchronization with the transmitter by using the first sequence and a second sequence,

wherein each of the first and second sequences is represented by,

473A0B21CE9537F3A0B20316AC873A0B21CE95378C5F4DFCE9537F3A0B21CE9537F3A0B20316AC80C5F4DE316AC873A0B20316AC800

when the receiver has a Fast Fourier Transform (FFT) size of 1024.

2. A method for acquiring synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

generating and transmitting, in a transmitter, a first sequence for acquiring synchronization with a receiver,

receiving the first sequence in the receiver; and

acquiring synchronization with the transmitter by using the first sequence and a second sequence,

wherein each of the first and second sequences is represented by,

5642862D90FE75642862A6F018B642862D90FE749BD79D590FE740

when the receiver has a Fast Fourier Transform (FFT) size of 512.

3. A method for acquiring synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

generating and transmitting, in a transmitter, a first sequence for acquiring synchronization with a receiver;

receiving the first sequence in the receiver; and

acquiring synchronization with the transmitter by using the first sequence and a second sequence,

wherein each of the first and second sequences are represented by,

590A18B643F9D0

when the receiver has a Fast Fourier Transform (FFT) size of 128.

4. A method for operating a transmitter in order to acquire synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

generating a first sequence for acquiring synchronization with a receiver; and

transmitting the first sequence to the receiver,

wherein the first sequence is represented by,

473A0B21CE9537F3A0B20316AC873A0B21CE95378C5F4DFCE9537F3A0B21CE9537F3A0B20316AC80C5F4DE316AC873A0B20316AC800

when the receiver has a Fast Fourier Transform (FFT) size of 1024.

5. A method for operating a transmitter in order to acquire synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

generating a first sequence for acquiring synchronization with a receiver; and

transmitting the first sequence to the receiver,

wherein the first sequences is represented by,

5642862D90FE75642862A6F018B642862D90FE749BD79D590FE740

when the receiver has a Fast Fourier Transform (FFT) size of 512.

6. A method for operating a transmitter in order to acquire synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

generating a first sequence for acquiring synchronization with a receiver; and

transmitting the first sequence to the receiver,

wherein the first sequence is represented by,

590A18B643F9D0

when the receiver has a Fast Fourier Transform (FFT) size of 128.

7. A method for operating a receiver in order to acquire synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

receiving a first sequence from a transmitter; and

acquiring synchronization with the transmitter by using the first sequence and a second sequence wherein each of the first and second sequences is represented by,

473A0B21CE9537F3A0B20316AC873A0B21CE95378C5F4DFCE9537F3A0B21CE9537F3A0B20316AC80C5F4DE316AC873A0B20316AC800

when the receiver has a Fast Fourier Transform (FFT) size of 1024.

8. A method for operating a receiver in order to acquire synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

receiving a first sequence from a transmitter; and

acquiring synchronization with the transmitter by using the first sequence and a second sequence wherein each of the first and second sequences is represented by,

5642862D90FE75642862A6F018B642862D90FE749BD79D590FE740

in case where the receiver has a Fast Fourier Transform (FFT) size of 512.

9. A method for operating a receiver in order to acquire synchronization in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:

receiving a first sequence from a transmitter; and

acquiring synchronization with the transmitter by using the first sequence and a second sequence wherein each of the first and second sequences is represented by,

590A18B643F9D0

when the receiver has a Fast Fourier Transform (FFT) size of 128.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2019
From: SAMSUNG ELECTRONICS CO., LTD.
To: NOKIA TECHNOLOGIES OY
Reel/Frame 048083/0361 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2005
From: CHOI, SEUNG-HOON; PARK, SUNG-EUN; KIM, JAE-YOEL; PARK, DONG-SEEK
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 016929/0388 →
Priority Claims (1)
KR 10-2004-0067646 · Aug 26, 2004 · national
Continuity (1)
Related Publication 20060045003A1 · Mar 2, 2006