CA2246470A1 - Wireless lan with enhanced capture provision - Google Patents

Wireless lan with enhanced capture provision

Info

Publication number
CA2246470A1
CA2246470A1 CA002246470A CA2246470A CA2246470A1 CA 2246470 A1 CA2246470 A1 CA 2246470A1 CA 002246470 A CA002246470 A CA 002246470A CA 2246470 A CA2246470 A CA 2246470A CA 2246470 A1 CA2246470 A1 CA 2246470A1
Authority
CA
Canada
Prior art keywords
message
receiver
detected
carrier
mode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002246470A
Other languages
French (fr)
Other versions
CA2246470C (en
Inventor
Jan Boer
Hendrik Van Bokhorst
Wilhelmus Josephus Diepstraten
Adriaan Kamerman
Rienk Mud
Hans Van Driest
Robert John Kopmeiners
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2246470A1 publication Critical patent/CA2246470A1/en
Application granted granted Critical
Publication of CA2246470C publication Critical patent/CA2246470C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
    • H04W74/0816—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA carrier sensing with collision avoidance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A receiver and a method for operating the receiver, for a station in a wireless local area network using a common wireless communication channel and employi ng a CSMA/CA (carrier sense multiple access with collision avoidance) protocol includes various modes. In normal mode, the receiver follows typical states in order to detect a message and demodulate data from the message properly. Meanwhile, a proce ss implements a message-in-message (MIM) mode when an energy increase above a specified level is detected. While in the MIM mode, if a carrier is detected , the energy increase is caused by a new message; otherwise, the energy increase is cause d by an interfering station. If the carrier is detected, the receiver begins retraining so that it can start receiving the new message as soon as the first message ends. If no carrier is detected, the receiver waits a specified time to detect a carrier or for the end of the first message, after which the receiver returns to the beginning of the normal mod e. While in the normal mode, if a message is detected that is not addressed to the station, the receiver enters a hunt mode. While in the hunt mode, the receiver waits for the curre nt message to finish. At the same time, a process implements retraining when both an energ y increase above a specified leveland a carrier are detected. If no carrier is detected within a specified time, or if the energy level decreases below the specified level, the receiver returns to the beginning of the normal mode.
CA002246470A 1997-09-08 1998-09-03 Wireless lan with enhanced capture provision Expired - Fee Related CA2246470C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/925,416 US5987033A (en) 1997-09-08 1997-09-08 Wireless lan with enhanced capture provision
US08/925,416 1997-09-08

Publications (2)

Publication Number Publication Date
CA2246470A1 true CA2246470A1 (en) 1999-03-08
CA2246470C CA2246470C (en) 2003-07-29

Family

ID=25451701

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002246470A Expired - Fee Related CA2246470C (en) 1997-09-08 1998-09-03 Wireless lan with enhanced capture provision

Country Status (4)

Country Link
US (1) US5987033A (en)
EP (1) EP0901252A3 (en)
JP (1) JP3435076B2 (en)
CA (1) CA2246470C (en)

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Also Published As

Publication number Publication date
CA2246470C (en) 2003-07-29
EP0901252A2 (en) 1999-03-10
EP0901252A3 (en) 1999-03-24
JP3435076B2 (en) 2003-08-11
US5987033A (en) 1999-11-16
JPH11168480A (en) 1999-06-22

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