MULTIPLE ACCESS HIERARCHICAL CELLULAR NETWORK AND MULTIPLE ACCESS MOBILE COMMUNICATION TERMINAL

• US 20060182018A1
• Filed: 12/12/2005
• Published: 08/17/2006
• Est. Priority Date: 12/18/2004
• Status: Abandoned Application

• Current Assignee: Seoul National University Industry Foundation (Seoul National University)
• Original Assignee: Seoul National University Industry Foundation (Seoul National University)
• Inventors: BAHK, SAE-WOONG, CHOI, YOUNG-JUNE, JUN, JUNG-HYON
• Application Number:
  US11/164,945
• Publication Number:
  US 20060182018A1
• Time in Patent Office: Days
• US Class Current: 370/208
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04L 5/023 Multiplexing of multicarrier modulation signals multicarrier modulation H04L27/2601
• CPC Class Codes: H04W 16/32 Hierarchical cell structures

Abstract

Disclosed herein are a multiple access hierarchical cellular network and a multiple access mobile communication terminal using the multiple access hierarchical cellular network. The multiple access hierarchical cellular network includes a macrocell that is served by Frequency Hopping-Orthogonal Frequency Division Multiple Access (FH-OFDMA), and microcells that are served by Orthogonal Frequency Division Multiple Access (OFDMA). The multiple access mobile communication terminal accesses a macrocell, which is served by FH-OFDMA, using FH-OFDMA when it moves at a speed higher than a predetermined speed, and a microcell, which is served by OFDMA, using OFDMA when it moves at a speed lower than the predetermined speed.

Claims

1. A multiple access hierarchical cellular network, comprising:

a macrocell that is served by Frequency Hopping-Orthogonal Frequency Division Multiple Access (FH-OFDMA); and

microcells that are served by Orthogonal Frequency Division Multiple Access (OFDMA).

2. A multiple access mobile communication terminal accessing a macrocell, which is served by FH-OFDMA, using FH-OFDMA when it moves at a speed higher than a predetermined speed, and a microcell, which is served by OFDMA, using OFDMA when it moves at a speed lower than the predetermined speed.

3. A multiple access mobile communication terminal accessing a macrocell, which is served by FH-OFDMA, using FH-OFDMA when it moves at a speed higher than a predetermined speed or voice traffic is used, and a microcell, which is served by OFDMA, using OFDMA when it moves at a speed lower than the predetermined speed and data traffic is used.