Integrated self-optimizing multi-parameter and multi-variable point to multipoint communication system

• US 8,867,473 B2
• Filed: 10/17/2012
• Issued: 10/21/2014
• Est. Priority Date: 12/30/1999
• Status: Expired due to Fees

• Current Assignee: Monument Bank of Intellectual Property, LLC (Dominion Harbor Enterprises, LLC)
• Original Assignee: Quarterhill Inc. (f/k/a Wi-LAN Inc.)
• Inventors: Majidi-Ahy, Reza, Hakim, Joseph, Varma, Subir
• Primary Examiner(s): Phillips, Hassan
• Assistant Examiner(s): JONES, PRENELL P
• Application Number:
  US13/653,781
• Publication Number:
  US 20130039328A1
• Time in Patent Office: 734 Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0001 Systems modifying transmission characteristics according to link quality, e.g. power backoff adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0007 by modifying the frame length
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0015 characterised by the adaptation strategy
• CPC Class Codes: H04L 1/1816 with retransmission of the same, encoded, message
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1867 Arrangements specially adapted for the transmitter end
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04W 28/0252 per individual bearer or channel dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 52/04 TPC
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 76/40 for selective distribution or broadcast
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The invention provides a method and system for adaptive point to multipoint wireless communication. The wireless physical layer and the wireless media-access-control (MAC) layer collectively include a set of parameters, which are adaptively modified by a base station controller for communication with a plurality of customer premises equipment. The base station controller adjusts communication with each customer premises equipment individually and adaptively in response to changes in characteristics of communication, including physical characteristics, amount of communication traffic, and nature of application for the communication traffic.

Claims

1. A base station for use in a point to multipoint wireless network including one or more customer premises equipment (CPE), each with two or more antennas, the base station comprising:

two or more antennas; and

a controller which is programmed to

maintain a set of parameters for wireless communication with a customer premises equipment (CPE) having two or more antennas, the set of parameters comprising an antenna selection parameter, a power level and a modulation type,

establish wireless communication with the CPE using the set of parameters, and

independently adapt the set of parameters based on changing conditions in the wireless communication with the CPE.

2. The base station of claim 1, wherein the controller is further programmed to transmit simultaneously a portion of a communication signal from the two or more antennas of the base station to the two or more antennas of at least one of the one or more CPE.

3. The base station of claim 1, wherein the set of parameters further includes a channel selection parameter.

4. The base station of claim 1, wherein the controller is further programmed to select a frequency channel for communication of a communication signal to the one or more CPE.

5. The base station of claim 1, wherein the controller is further programmed to select at least two channel frequencies, each of the at least two channel frequencies for simultaneous transmission of a portion of a communication signal to the one or more CPE.

6. The base station of claim 1, wherein the controller is further programmed to select at least two channel frequencies for transmitting successively portions of a communication signal to the one or more CPE.

7. The base station of claim 1, wherein the controller is further programmed to select a channel type for transmitting a portion of a communication signal to the one or more CPE.

8. The base station of claim 1, wherein the set of parameters further includes one or more of an error code type, symbol rate, and equalization technique.

9. The base station of claim 1, wherein the power level and the modulation type are adapted as an optimal pair.

10. The base station of claim 1, wherein the set of parameters further includes a media access control (MAC) parameter.

11. The base station of claim 1, wherein the set of parameters includes one or more of a message size, an acknowledgement parameter, a retransmission parameter, and a time division duplex (TDD) duty cycle.

12. The base station of claim 1, wherein the controller is further programmed to:

maintain a second set of parameters for wireless communication with a second CPE having two or more antennas;

establish wireless communication with the second CPE using the second set of parameters; and

independently adapt the second set of parameters based on changing conditions in the wireless communication with the second CPE.

13. A base station for use in a point to multipoint wireless network, the base station comprising:

two or more antennas;

a controller programmed to

maintain a set of parameters for wireless communication with each of one or more customer premises equipment (CPE), each CPE having two or more antennas,

establish wireless communication with a CPE of the one or more CPE using a particular set of parameters of the set of parameters, and

independently adapt the particular set of parameters based on changing conditions in the wireless communication with the CPE,

wherein, in association with the adapting, the base station is further programmed to select an antenna selection parameter to indicate how to transmit a communication signal to the CPE and transmit successively a first portion of the communication signal from a first antenna of the base station to the CPE and a second portion of the communication signal from a second antenna to the CPE.

14. A base station comprising:

a processor; and

a memory coupled to the processor, the memory comprising instructions which, when read and executed cause the processor to

maintain a set of parameters for wireless communication with one or more customer premises equipment (CPE),

establish a wireless communication link with a respective CPE of the one of more CPE using a respective set of parameters of the set of parameters, the wireless communication link comprising two or more frequency channels, and

independently adapt the respective set of parameters based on changing conditions in the wireless communication link,

wherein, in association with the adapting, the instructions, when read and executed further cause the processor to

select a frequency channel for transmissions to the respective CPE, and

select a pair of parameters including a power level and modulation type for transmissions to the respective CPE.

15. The base station of claim 14, further comprising two or more antennas, wherein, in association with the adapting, the instructions, when read and executed further cause the processor to select an antenna parameter for transmissions from the two or more antennas of the base station to two or more antennas of a respective CPE.

16. The base station of claim 14, wherein the instructions, when read and executed further cause the processor to transmit simultaneously a plurality of portions of a communication signal on at least two frequency channels in association with the selecting the frequency channel.

17. The base station of claim 15, wherein the instructions, when read and executed further cause the processor to:

transmit a first portion of a communication signal on a first antenna on a first frequency channel; and

transmit a second portion of a communication signal on a second antenna on a second frequency channel.

18. A base station comprising:

a processor; and

a memory coupled to the processor, the memory comprising instructions which, when read and executed cause the processor to

maintain a first set of parameters for wireless communication between the base station and a first customer premises equipment (CPE),

maintain a second set of parameters for wireless communication between the base station and a second customer premises equipment (CPE),

establish a first wireless communication link with the first CPE in association with the first set of parameters, the wireless communication link comprising two or more frequency channels,

establish a second wireless communication link with the second CPE in association with the second set of parameters,

adapt the first set of parameters based on changing conditions in the first wireless communication link, and

adapt the second set of parameters based on changing conditions in the second wireless communication link, independent of the adapting of the first set of parameters, including

select a channel selection parameter for communications with the first CPE, and

select a pair of parameters including a power level and modulation type for communications with the first CPE.

19. The base station of claim 18, further comprising two or more antennas, wherein the first CPE comprises two or more antennas, and wherein, in association with the adapting, the instructions, when read and executed further cause the processor to select an antenna for communications from the two or more antennas of the base station to the two or more antennas of the first CPE.

20. The base station of claim 18, wherein the instructions, when read and executed further cause the processor to transmit simultaneously a plurality of portions of a communication signal on at least two frequency channels according to the selected channel selection parameter.

21. The base station of claim 18, wherein the instructions, when read and executed further cause the processor to

transmit a first portion of a communication signal on a first antenna on a first frequency channel;

and

transmit a second portion of the communication signal on a second antenna on a second frequency channel.