Variable state length initialization

• US 7,272,171 B2
• Filed: 07/31/2003
• Issued: 09/18/2007
• Est. Priority Date: 06/07/2001
• Status: Expired due to Term

• Current Assignee: Intellectual Ventures II LLC (Intellectual Ventures LLC)
• Original Assignee: Aware Incorporated (Crowley Holdings Preferred LLC)
• Inventors: Tzannes, Marcos C
• Primary Examiner(s): VO, DON NGUYEN
• Application Number:
  US10/630,673
• Publication Number:
  US 20040022305A1
• Time in Patent Office: 1,510 Days
• Field of Search: 375/219, 375/260, 375/220, 375/222, 375/223, 370/282
• US Class Current: 375/222
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/1438 Negotiation of transmission parameters prior to communication modified according to link quality H04L1/0001
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 11/062 using different frequency bands for speech and other data

Abstract

Through the use of a variable state length initialization, both the transmitter and the receiver can have control of the length of one or more initialization states. For example, a transmitter can send information, such as a message, to the receiver at the commencement of, during initialization or prior to entering a variable length initialization state. The information can specify, for example, a minimum length of an initialization state as needed by the transmitter.

Claims

1. In a multicarrier communication system including a first multicarrier transceiver and a second multicarrier transceiver, a variable state length initialization method comprising:

transmitting from the first multicarrier transceiver to the second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

transmitting from the second multicarrier transceiver to the first multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

transmitting from the first multicarrier transceiver to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

2. In a multicarrier transceiver, a variable state length initialization method comprising:

transmitting to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

receiving from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

transmitting to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

3. In a multicarrier transceiver, a variable state length initialization method comprising:

transmitting to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

receiving from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

selecting a number equal to the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

receiving from the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

4. A variable state length initialization multicarrier communication system, including a first multicarrier transceiver and a second multicarrier transceiver, comprising:

means for transmitting from the first multicarrier transceiver to the second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

means for transmitting from the second multicarrier transceiver to the first multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

means for selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

means for transmitting from the first multicarrier transceiver to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

5. A variable state length initialization multicarrier transceiver comprising:

means for transmitting to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

means for receiving from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

means for selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

means for transmitting to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

6. A variable state length initialization multicarrier transceiver comprising:

means for transmitting to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

means for receiving from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

means for selecting a number equal to the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

means for receiving from the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

7. A variable state length initialization multicarrier communication system comprising:

a first multicarrier transceiver capable of transmitting information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

a second multicarrier transceiver capable of transmitting to the first multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols,

wherein the first multicarrier transceiver is capable of selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols, and

transmitting to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

8. A variable state length initialization multicarrier transceiver capable of transmitting to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols,

wherein the multicarrier transceiver is also capable of receiving from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols, selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols, and transmitting to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

9. A variable state length initialization multicarrier transceiver capable of transmitting to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols,

wherein the multicarrier transceiver is also capable of receiving from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols, selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols, and receiving from the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

10. An information storage media having recorded thereon executable information for variable state length initialization in a multicarrier communication system comprising:

information that transmits from a first multicarrier transceiver to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

information that transmits from the second multicarrier transceiver to the first multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

information that selects the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

information that transmits from the first multicarrier transceiver to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

11. An information storage media having recorded thereon executable information for variable state length initialization in a multicarrier transceiver comprising:

information that transmits to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

information that receives from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

information that selects the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

information that transmits to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

12. An information storage media having recorded thereon executable information for variable state length initialization in a multicarrier transceiver comprising:

information that transmits to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

information that receives from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

information that selects a number equal to the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

information that receives from the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

13. In a multicarrier communication system including a first multicarrier transceiver and a second multicarrier transceiver, a variable state length initialization protocol comprising:

transmitting from the first multicarrier transceiver to the second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

transmitting from the second multicarrier transceiver to the first multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

transmitting from the first multicarrier transceiver to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

14. In a multicarrier transceiver, a variable state length initialization protocol comprising:

transmitting to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

receiving from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

selecting the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

transmitting to the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.

15. In a multicarrier transceiver, a variable state length initialization protocol comprising:

transmitting to a second multicarrier transceiver information identifying a first value that is used to determine a first minimum number of multicarrier symbols;

receiving from the second multicarrier transceiver information identifying a second value that is used to determine a second minimum number of multicarrier symbols;

selecting a number equal to the greater of the first minimum number of multicarrier symbols and the second minimum number of multicarrier symbols; and

receiving from the second multicarrier transceiver, during an initialization state, the selected number of multicarrier symbols.