Apparatus and method for creating signal and profiles at a receiving station

• US 6,947,477 B2
• Filed: 04/20/2001
• Issued: 09/20/2005
• Est. Priority Date: 01/19/2001
• Status: Expired due to Term

• Current Assignee: Access Solutions, Ltd. (LOXAM SAS)
• Original Assignee: Raze Technologies, Inc.
• Inventors: McKown, Russell C., Struhsaker, Paul F.
• Primary Examiner(s): Chin, Stephen
• Assistant Examiner(s): Vartanian, Harry
• Application Number:
  US09/839,719
• Publication Number:
  US 20020097685A1
• Time in Patent Office: 1,614 Days
• Field of Search: 375/222, 370/314, 370/321, 370/347
• US Class Current: 375/222
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H04B 7/022 Site diversity; Macro-diversity using two or more spaced independent antennas H04B7/04
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0005 applied to payload information
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0017 where the mode-switching is based on Quality of Service requirement
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04L 12/403 with centralised control, e.g. polling
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 2001/0098 Unequal error protection
• CPC Class Codes: H04L 2001/125 Arrangements for preventing errors in the return channel
• CPC Class Codes: H04L 27/2647 Arrangements specific to the receiver only equalisation H04L27/01
• CPC Class Codes: H04M 2207/206 composed of PSTN and wireless network
• CPC Class Codes: H04M 2242/04 for emergency applications
• CPC Class Codes: H04M 2242/06 Lines and connections with preferential service
• CPC Class Codes: H04M 3/42 Systems providing special services or facilities to subscribers specially adapted for wireless communication networks H04W4/00
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 84/14 : WLL [Wireless Local Loop]; RLL [Radio Local Loop]
• CPC Class Codes: H04W 88/021 : adapted for Wireless Local Loop operation
• CPC Class Codes: H04W 88/08 : Access point devices

Abstract

Apparatus, and an associated method, for creating a profile associated with burst data signals communicated to a base station of a fixed wireless access communication system. The profile is created to facilitate receive operations performed upon subsequent bursts of the burst data signal. The profile is stored at a storage device and retrieved when subsequent bursts of the bursts data signal are received at the base station.

Claims

1. Profile-creating apparatus for creating at least a first profile associated with transmission upon at least a first channel of at least a first burst-data signal transmitted in bursts to a receiving station, said profile-creating apparatus comprising:

a profile parameter determiner coupled to receive an indication of an initial burst of the first burst data signal transmitted upon the first channel to the receiving station, said profile parameter determiner for determining a value of at least one signal-related parameter and at least one channel-related parameter, wherein the signal-related and channel-related parameters are collectively representative of communication of the first burst data signal over the first channel to the receiving station; and

a profile parameter storage device coupled to said profile parameter determiner, said profile parameter storage device for storing values representative of the at least one signal-related parameter and the at least one channel-related parameter determnined by said profile parameter determiner, the values stored at said profile parameter storage device to be used to facilitate receive operations performed at the receiving station on subsequent bursts of the first burst data signal.

2. The apparatus of claim 1 wherein the receiving station is operable in a communication system in which communication protocols include a contention period and wherein the initial burst of the first burst data signal, responsive to which said profile parameter determiner determines the at least one parameter, is communicated during the contention period.

3. The apparatus of claim 1 wherein the channel-related parameter is representative of a channel condition of the first channel.

4. The apparatus of claim 3 wherein the channel-related parameter determined by said profile parameter determiner comprises a value representative of fading exhibited upon the first channel.

5. The apparatus of claim 4 wherein the receiving station comprises an equalizer for performing equalization operations when the at least the first burst data signal and wherein the value representative of fading exhibited when the first channel comprises an equalizer weighting value to be used by the equalizer during the equalization operations.

6. The apparatus of claim 3 wherein the receiving station comprises an antenna assembly and wherein the channel-related parameter determined by said profile parameter determiner comprises an antenna parameter related to the antenna assembly.

7. The apparatus of claim 3 wherein the first burst data signal is transmitted by a first sending station having an antenna assembly and wherein the channel-related parameter determined by said profile parameter determiner comprises an antenna parameter related to the antenna assembly.

8. The apparatus of claim 1 wherein the signal-related parameter is representative of a signal characteristic of the first burst data signal transmitted over the first channel.

9. The apparatus of claim 8 wherein the signal-related parameter determined by said profile parameter determiner comprises a value representative of a frequency characteristic of the first burst data signal.

10. The apparatus of claim 8 wherein the signal-related parameter determined by said profile parameter determiner comprises a value representative of a time-shift characteristic of the first burst data signal.

11. The apparatus of claim 8 wherein the first burst data signal includes forward error correction (FEC) and wherein the signal-related parameter determined by said profile parameter determiner comprises a value representative of the FEC included in the first burst data signal.

12. The apparatus of claim 8 wherein the signal related parameter determined by said profile parameter determiner comprises a value related to power-levels of the first burst data signal.

13. The apparatus of claim 1 wherein said profile parameter determiner is further coupled to receive an indication of at least one additional burst of the first burst data signal, said profile parameter determiner further for determining an updated value of the at least one parameter responsive to the at least one additional burst of the first burst signal.

14. The apparatus of claim 13 wherein the receiving station is operable in a communication system in which communication protocols include a contention period and wherein the initial burst and the at least one additional burst of the first burst data signal, responsive to which said profile parameter determiner determines the at least on parameter is communicated during the contention period.

15. The apparatus of claim 1 wherein at least the first burst data signal transmitted upon the at least the first channel comprises a plurality of burst data signals transmitted upon a plurality of channels and wherein said profile parameter determiner determines a value of a plurality of parameters representative of communication of the plurality of burst data signals and each of the plurality of channels.

16. A method for creating at least a first profile associated with transmission upon at least a first channel of at least a first burst data signal in bursts to a receiving station, said method comprising:

responsive to reception at the receiving station of an initial burst of the first burst data signal transmitted upon the first channel, determining a value of at least one signal-related parameter and at least one channel-related parameter, wherein the signal-related and channel-related parameters are collectively representative of communication of the first burst data signal over the first channel to the receiving station;

storing values representative of the at least one signal-related parameter and the at least one channel-related parameter determined during said operation of determining; and

using the values stored during said operation of storing to facilitate receive operations performed at the receiving station upon at least one subsequent burst of the first burst data signal.

17. The method of claim 16 further comprising the operations of:

detecting, at the receiving station, the at least one subsequent burst of the first burst data signal;

responsive to detecting the at least one subsequent burst, updating the previously-determined value(s) of one or both of the at least one signal-related parameter and the at least one channel-related parameter.

18. The method of claim 16 wherein the receiving station is operable in a communication system in which communication protocols include a contention period and wherein the initial burst of the first burst data signal responsive to which the at least one signal-related parameter and the at least one channel-related parameter are determined is transmitted to the receiving station during the contention period.

19. The method of claim 16 wherein the at least channel-related parameter comprises one or more of equalization weighting and antenna parameters.

20. The method of claim 16 wherein the at least signal-related parameter comprises one or more of forward error correction (FEC) amount, frequency change, burst time change, and burst power level change.