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Robust topology wireless communication using broadband access pointsRelated Patent Categories: Telecommunications, Radiotelephone System, Zoned Or Cellular Telephone System, Including Other Radio Communication System (e.g., Cordless Telephone, Paging, Trunking, Etc.)Robust topology wireless communication using broadband access points description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070184828, Robust topology wireless communication using broadband access points. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of prior U.S. patent application Ser. No. 09/540,674 (Attorney Docket No. 164.1001.01), now allowed, entitled: Robust Topology Wireless Communication Using Broadband Access Points, by Reza Majidi-Ahy, filed Mar. 31, 2000, hereby incorporated by reference in its entirety. BACKGROUND OF THE INVENTION Field of the Invention [0002] This invention relates to robust topology wireless communication using access points. [0003] Wireless communication between a sender and a receiver includes sending information using a wireless communication link, in which the sender modulates information onto a wireless communication channel (such as a frequency band reserved for wireless communication between the sender and the receiver), and the receiver demodulates that information from the wireless communication channel, so as to recover the original information. [0004] One problem with known systems is that wireless communication channels are subject to several communication problems that make them relatively unreliable in comparison to wireline communication channels. Among these communication problems are interference, random or pseudo random noise, and multi-path effects. For a first example, a wireless communication channel can be subject to information sent on other wireless communication channels having nearby frequencies or other similar modulation formats. For a second example, a wireless communication channel can be subject to random or pseudo random noise, such as might be generated by ambient noise sources. For a third example, the information sent on a wireless communication channel can be reflected or refracted so as to arrive at its destination at more than one time and with varying degrees of attenuation. Of course, a most serious communication problem involves complete lack of communication between sender and receiver due to an obstruction on the line of sight path between sender and receiver. [0005] One known method to account for these communication problems is to attempt to determine the nature of the communication problems likely to plague the wireless communication channel between a selected sender and receiver, and to attempt to reverse the effects of these communication problems. For a first example, the effects of interference and noise can be alleviated in part by error correcting codes and other known techniques of communication using noisy channels. For a second example, multi-path effects can be alleviated in part by attempting to determine an impulse response of the wireless communication link, and to invert that impulse response at either the sender or the receiver, so as to cancel those multi-path effects in the signal eventually presented to the receiver. [0006] Although these known methods generally achieve the result of improving communication on wireless communication links, they are subject to several drawbacks. First, these known methods are severely limited in their ability to provide wireless communication to locations not reachable by point to point links, such as locations behind obstructions like buildings or mountains, or locations at nodes in an interference or reflection pattern at the selected communication frequency. Second, these known methods are severely degraded with increases in interference or noise (of any kind), and can at best achieve communication capability associated with a noiseless communication link. Moreover, none of these known methods achieve the capability of solving the problem of complete lack of communication between sender and receiver due to an obstruction on the line of sight path between sender and receiver. [0007] Accordingly, it would be advantageous to provide a technique for wireless communication, such as for use in a wireless communication system, that is not subject to drawbacks of the known art. SUMMARY OF THE INVENTION [0008] The invention provides a method and system for robust topology wireless communication using access points. In a preferred embodiment, a wireless communication system includes a communication cell having a base station controller and at least one set of customer premises equipment. The customer premises equipment is disposed within a sector of the cell, and communication between the base station controller and the customer premises equipment is controlled by the base station controller is so as to prevent interference between multiple sets of customer premises equipment. When customer premises equipment is subject to relatively larger amounts of interference or noise, one or more access points are disposed within the sector, so as to propagate or route communication between the base station controller and one or more sets of customer premises equipment. In aspects of the invention described herein, the access points may range in complexity from simple reflectors, to repeaters, to routing devices operative within the cell. [0009] The invention provides an enabling technology for a wide variety of applications for wireless communication, so as to obtain substantial advantages and capabilities that are novel and non-obvious in view of the known art. Examples described below primarily relate to cellular wireless communication systems, but the invention is broadly applicable to many different types of wireless and other communication systems. BRIEF DESCRIPTION OF THE DRAWINGS [0010] FIG. 1 shows a first block diagram of a system for wireless communication using robust topology. [0011] FIG. 2 shows a second block diagram of a system for wireless communication using robust topology. [0012] FIG. 3 shows a third block diagram of a system for wireless communication using robust topology. [0013] FIG. 4 shows a fourth block diagram of a system for wireless communication using robust topology. [0014] FIG. 5 shows a fifth block diagram of a system for wireless communication using robust topology. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0015] In the following description, a preferred embodiment of the invention is described with regard to preferred process steps and data structures. Embodiments of the invention can be implemented using general-purpose processors or special purpose processors operating under program control, or other circuits, adapted to particular process steps and data structures described herein. Implementation of the process steps and data structures described herein would not require undue experimentation or further invention. Related Applications [0016] Inventions described herein can be used in conjunction with inventions described in the following documents. [0017] U.S. patent application Ser. No. 09/475,642, Express Mail Mailing No. EL524 780 018 US, filed Dec. 30, 1999, in the name of of Varma, Subir, Ngo, Khuong, Fuentes, Jean, Truong, Paul, and Majidi-Ahy, Reza, attorney docket number 164.1002.01, titled "Adaptive Link Layer for Point to Multipoint Communication System." [0018] U.S. patent application Ser. No. 09/475,716, Express Mail Mailing No. EL 524 780 021 US, filed Dec. 30, 1999, in the name of Majidi-Ahy, Reza, Hakim, Joseph, and Varma, Subir, attorney docket number 164.1003.01, titled "Integrated Self-Optimizing Multi-Parameter and Multi-Variable Point to MultiPoint Communication System." [0019] Each of these documents is hereby incorporated by reference as if fully set forth herein. These documents are sometimes collectively referred to herein as the "Incorporated Disclosures." Continue reading about Robust topology wireless communication using broadband access points... Full patent description for Robust topology wireless communication using broadband access points Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Robust topology wireless communication using broadband access points patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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