Method of allocating resources using hybrid duplexing technique

• US 8,331,283 B2
• Filed: 12/28/2006
• Issued: 12/11/2012
• Est. Priority Date: 12/28/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Seung-Young, Yun, Sang-Boh, Lee, Yeon-Woo, Kang, Chung-Gu, Kim, Il-Whan
• Primary Examiner(s): Harper, Kevin C
• Application Number:
  US11/646,912
• Publication Number:
  US 20070230376A1
• Time in Patent Office: 2,175 Days
• Field of Search: 370/294, 370/295, 370/330, 370/343, 370/345
• US Class Current: 370/328
• CPC Class Codes: H04W 16/02 Resource partitioning among network components, e.g. reuse partitioning
• CPC Class Codes: H04W 16/12 Fixed resource partitioning
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 74/02 Hybrid access

Abstract

A resource allocation method in a wireless communication system for providing a communication service in a given system frequency band to access terminals (ATs) within a broad-band service area around an access point (AP) and to ATs within a narrow-band service area having a radius larger than the radius of the broad-band service area. In the resource allocation method, the system frequency band is divided into a Time Division Duplexing (TDD) interval and a Frequency Division Duplexing (FDD) interval in time, and the TDD interval and the FDD interval are defined as TDD resources and FDD resources, respectively. The TDD resources are allocated to an AT within the broad-band service area, and the FDD resources are allocated to an AT within the narrow-band service area.

Claims

1. A method for allocating resources in a wireless communication system, comprising the steps of:

allocating, to first access terminals located within a first area, first resources divided into an uplink resource and a downlink resource in a time region;

the first resources having a predetermined time interval being allocated in the time region, and

allocating, to second access terminals located within a second area, second resources in the predetermined time interval located between the uplink resource and the downlink resource in the time region, wherein the second resources are divided into an uplink resource and a downlink resource in a frequency region.

2. The method of claim 1, wherein the uplink resource and the downlink resource in the time region are allocated using different sub-bands allocated in neighbor cells.

3. The method of claim 1, wherein the second resources comprise a plurality of sub-channels, and guard intervals are set between sub-channels.

4. The method of claim 3, wherein allocating the second resource comprises:

allocating one of remaining sub-channels, when sub-channels used in neighbor cells are excluded from among the plurality of sub-channels, to the second access terminals.

5. The method of claim 1, wherein the first area is a center area that is determined based on a threshold within a service coverage in each cell, and the second area is an edge area that is determined based on the threshold.

6. An apparatus for allocating resources in a wireless communication system,

wherein the apparatus allocates, to first access terminals located within a first area, first resources divided into an uplink resource and a downlink resource in a time region, the first resources having a predetermined time interval being allocated in the time region;

and

allocates, to second access terminals located within a second area, second resources in the predetermined time interval located between the uplink resource and the downlink resource in the time region, wherein the second resources are divided into an uplink resource and a downlink resource in a frequency region.

7. The apparatus of claim 6, wherein the uplink resource and the downlink resource in the time region are allocated using different sub-bands allocated in neighbor cells.

8. The apparatus of claim 6, wherein the second resources comprise a plurality of sub-channels, and guard intervals are set between sub-channels.

9. The apparatus of claim 8, wherein the apparatus allocates one of remaining sub-channels, when sub-channels used in neighbor cells are excluded from among the plurality of sub-channels, to the second access terminals.

10. The apparatus of claim 6, wherein the first area is a center area that is determined based on a threshold within a service coverage in each cell, and the second area is an edge area that is determined based on the threshold.