System and method for coordinating multiple wireless communications devices in a wireless communications network

Patent metadata

Field	Value
Publication number	US-9647807-B2
Application number	US-201514630693-A
Country	US
Kind code	B2
Filing date	Feb 25, 2015
Priority date	Jul 13, 2010
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A method for allocating radio resources by a coordinating wireless communications device in a wireless communications network including a plurality of wireless communications devices includes: obtaining a plurality of supported narrow-band channels in the wireless communications network; selecting a primary channel from the supported narrow-band channels and using the primary channel to communicate with the plurality of wireless communications devices; organizing the plurality of wireless communications devices into one or more communication groups; and assigning one of the one or more communication group a non-overlapping operating channel for multi-user multiple-input multiple-output (MU MIMO) communication with the coordinating wireless communications device.

First claim

What is claimed is:

1. A method for allocating radio resources by a coordinating wireless communications device in a wireless communications network including a plurality of wireless communications devices, the method comprising:
obtaining a plurality of supported narrow-band channels in the wireless communications network;
selecting a primary channel from the supported narrow-band channels and using the primary channel to communicate with the plurality of wireless communications devices;
organizing the plurality of wireless communications devices into one or more communication groups; and
assigning one of the one or more communication groups a non-overlapping operating channel for multi-user multiple-input multiple-output (MU MIMO) communication with the coordinating wireless communications device, wherein the non-overlapping operating channel contains at least two of the plurality of supported narrow-band channels in a coalesced manner;
wherein the plurality of wireless communications devices in the one of the one or more communication groups communicate with the coordinating wireless communications device concurrently.

2. The method of claim 1 , wherein the selecting step is based on parameters selected from a group comprising an availability number of the narrow-band channels, an interference level of each narrow-band channel and the respective supported narrow-band channels supported by each of the wireless communications device.

3. The method of claim 1 , wherein the organizing step is based on algorithms selected from a group comprising a best fit algorithm, a first fit algorithm, a population of non-overlapping operating channel and application requirements.

4. The method of claim 1 , wherein the assigning step is either static or dynamic.

5. The method of claim 1 , wherein in the assigning step, channel access of the allocated wireless communications device is determined based on a carrier sensing collision avoidance algorithm, a request based algorithm or a mix thereof.

6. The method of claim 1 , further comprising,
assigning another one of the one or more communication group another non-overlapping operating channel for orthogonal frequency-division multiple access (OFDMA) communication with the coordinating wireless communications device.

7. The method of claim 1 , further comprising,
assigning another one of the one or more communication group another non-overlapping operating channel for multi-user down-link frequency domain multiplexing (MU DL FDM) operation.

8. A wireless communications network including:
a coordinating wireless communications device; and
a plurality of wireless communications devices, coordinated by the coordinating wireless communications device;
wherein:
the coordinating wireless communications device obtains a plurality of supported narrow-band channels in the wireless communications network;
the coordinating wireless communications device selects a primary channel from the supported narrow-band channels and using the primary channel to communicate with the plurality of wireless communications devices;
the coordinating wireless communications device organizes the plurality of wireless communications devices into one or more communication groups; and
the coordinating wireless communications device assigns one of the one or more communication group a non-overlapping operating channel for multi-user multiple-input multiple-output (MU MIMO) communication with the coordinating wireless communications device, wherein the non-overlapping operating channel contains at least two of the plurality of supported narrow-band channels in a coalesced manner;
wherein the plurality of wireless communications devices in the one of the one or more one communication group communicate with the coordinating wireless communications device concurrently.

9. The wireless communications network of claim 8 , wherein the coordinating wireless communications device selects the primary channel based on parameters selected from a group comprising an availability number of the narrow-band channels, an interference level of each narrow-band channel and the respective supported narrow-band channels supported by each of the wireless communications device.

10. The wireless communications network of claim 8 , wherein the coordinating wireless communications device organizes the plurality of wireless communications devices based on algorithms selected from a group comprising a best fit algorithm, a first fit algorithm, a population of non-overlapping operating channel and application requirements.

11. The wireless communications network of claim 8 , wherein the coordinating wireless communications device assigns either statically or dynamically.

12. The wireless communications network of claim 8 , wherein in assign by the coordinating wireless communications device, channel access of the allocated wireless communications device is determined based on a carrier sensing collision avoidance algorithm, a request based algorithm or a mix thereof.

13. The wireless communications network of claim 8 , wherein
the coordinating wireless communications device assigns another one of the one or more communication group another non-overlapping operating channel for orthogonal frequency-division multiple access (OFDMA) communication with the coordinating wireless communications device.

14. The wireless communications network of claim 8 , wherein
the coordinating wireless communications device assigns another one of the one or more communication group another non-overlapping operating channel for multi-user down-link frequency domain multiplexing (MU DL FDM) operation.

Assignees

• Mediatek Singapore Pte Ltd

Inventors

• Wang Chao-Chun
• Yee Chih-Shi

Classifications

• H04W72/121 Primary

  for groups of terminals or users · CPC title

• H04W72/04

  Wireless resource allocation · CPC title

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04L5/0037 Primary

  Inter-user or inter-terminal allocation · CPC title

• H04J11/003

  at the transmitter (transmission to multiple receive units in multiple input multiple output [MIMO] H04B7/0452; transmit antenna weighting H04B7/0615) · CPC title