Geographical scheduling and association procedure for wimax systems

• US 20090245160A1
• Filed: 03/28/2008
• Published: 10/01/2009
• Est. Priority Date: 03/28/2008
• Status: Active Grant

• Current Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Original Assignee: Intel Corporation
• Inventors: Maltsev, Alexander JR., Maltsev, Alexander, Sydir, Jaroslaw J., Pudeyev, Andrey
• Granted Patent: US 8,155,015 B2
• Time in Patent Office: Days
• US Class Current: 370/315
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

Techniques to manage communication between a subscriber station and a base station or a relay station are disclosed.

Claims

1. A method to manage communications in a wireless network comprising at least one base station encompassing a first geographic region and at least one relay station encompassing a second geographic region, comprising:

assigning a subscriber station in the wireless network into one of a plurality of zones, wherein the zones are characterized by at interference characteristic; and

encoding communication packets between the subscriber station and at least one of the base station or the relay station into a frame structure segment that is transmitted according to one of a time/frequency multiplexed protocol or a resource sharing protocol as a function of the one of the plurality of zones.

2. The method of claim 1, wherein assigning a subscriber station in the wireless network into one of a plurality of zones based on its geographical position, signal strength and interference environment.

3. The method of claim 1, wherein assigning a subscriber station in the wireless network into one of a plurality of zones comprises dividing the region into:

zones which utilize time/frequency multiplexing, wherein different links between subscriber stations and at least one base station or relay station operate using separate time-frequency resources; and

zones which utilize time-frequency resource reuse, wherein two or more links between subscriber stations and base station or relay stations operate simultaneously utilizing the same time-frequency resource

4. The method of claim 1, wherein assigning a subscriber station in the wireless network into one of a plurality of zones comprises determining whether a received signal quality indicator exceed threshold.

5. The method of claim 1, wherein assigning a subscriber station in the wireless network into one of a plurality of zones comprises determining whether an interference parameter from the subscriber station exceeds a threshold.

6. The method of claim 1, wherein managing a frame structure of wireless communication between a subscriber station and at least one of a base station or a relay station according to a protocol specific to the plurality of zones comprises assigning communication with a subscriber station categorized as exhibiting high signal strength and low interference into a simultaneous transmission zone of the frame structure.

7. The method of claim 1, wherein managing a frame structure of wireless communication between a subscriber station and at least one of a base station or a relay station according to a protocol specific to the plurality of zones comprises assigning communication with a subscriber station categorized as exhibiting low signal strength and high interference into a zone of the frame structure that is multiplexed by at least one of a time dimension or a frequency dimension.

8. A system to manage communications in a wireless network encompassing a geographic region, comprising:

a receiver to receive a communication signal from a subscriber station;

a signal analysis module to assigning a subscriber station in the geographic region into one of a plurality of zones; and

a signal framing module comprising logic to encode communication packets between the subscriber station and at least one of a base station or a relay station into a frame structure segment that is transmitted according to one of a time/frequency multiplexed protocol or a resource sharing protocol as a function of the one of the plurality of zones.

9. The system of claim 8, wherein the signal analysis module further comprises logic to assign a subscriber station into one of:

zones which utilize time/frequency multiplexing, wherein different links between subscriber stations and at least one base station or relay station operate using separate time-frequency resource; and

zones which utilize time/frequency resource reuse, wherein two or more links between subscriber stations and base station or relay stations operate simultaneously utilizing the same time-frequency resource.

10. The system of claim 8, wherein the signal analysis module further comprises logic to determine whether a received signal quality indicator exceed threshold.

11. The system of claim 8, wherein the signal analysis module further comprises logic to determine whether an interference parameter from the subscriber station exceeds a threshold.

12. The system of claim 8, wherein the signal framing module comprises logic to manage a frame structure of wireless communication between a subscriber station and at least one of a base station or a relay station according to a protocol specific to the plurality of zones comprises assigning communication with a subscriber station categorized as exhibiting high signal strength and low interference into a simultaneous transmission frame structure.

13. The system of claim 8, wherein the signal framing module comprises logic to manage a frame structure of wireless communication between a subscriber station and at least one of a base station or a relay station according to a protocol specific to the plurality of zones comprises assigning communication with a subscriber station categorized as exhibiting low signal strength and high interference into a frame structure multiplexed by at least one of a time dimension or a frequency dimension.

14. The system of claim 8, wherein the signal framing module comprises logic to manage a frame structure in the way to maximize the overall system spectral efficiency.