EP2103045A2 - Station de base, système et procédé destinés à signaler la présence d'un premier dispositif non conforme entre des émissions de signaux de balise - Google Patents

Station de base, système et procédé destinés à signaler la présence d'un premier dispositif non conforme entre des émissions de signaux de balise

Info

Publication number
EP2103045A2
EP2103045A2 EP07871390A EP07871390A EP2103045A2 EP 2103045 A2 EP2103045 A2 EP 2103045A2 EP 07871390 A EP07871390 A EP 07871390A EP 07871390 A EP07871390 A EP 07871390A EP 2103045 A2 EP2103045 A2 EP 2103045A2
Authority
EP
European Patent Office
Prior art keywords
conforming
conforming device
base station
signal
protection mechanism
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.)
Withdrawn
Application number
EP07871390A
Other languages
German (de)
English (en)
Inventor
Kaberi Banerjee
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.)
NXP BV
Original Assignee
NXP BV
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 NXP BV filed Critical NXP BV
Publication of EP2103045A2 publication Critical patent/EP2103045A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the wireless communication system 100 includes a base station (BS) 102 and a number of user equipments (UEs) 104 and 106.
  • the UEs 104 and 106 are wireless devices, which may be mobile stations, cellular phone, laptop computers, personal digital assistants (PDAs) or any other wireless devices that can operate in a wireless environment.
  • the BS 102 may be an access point (AP), an evolved Node B (eNB) or any other type of wireless central device that can operate in a wireless environment.
  • AP access point
  • eNB evolved Node B
  • the wireless communication system 100 may include any number of BSs and UEs.
  • the required protection mechanism is GF protection mechanism.
  • the announcement signal is used to notify the GF devices in the BSS supported by the BS 102 the presence of the first non-GF device in the BSS when the non-GF device is associated with the BSS.
  • the announcement signal is a management action frame 302 in which GF protection announcement information is embedded in the HT Information Element 304 of the management action frame.
  • the GF protection announcement information is a bit of digital data in the thirty- fourth bit location 306 in the HT Information Element 304 of the management action frame 302.
  • the control module 214 may be implemented in the BS 102 as software, hardware and/or firmware. In some embodiments, the control module 214 is a program being executed by the processor 212, and thus, the functions of the control module 214 are performed by the processor 212.
  • the processor 212 can be any type of a signal processor.
  • the BS 102 includes other conventional components commonly found in a wireless BS, which are not described herein so as to not obscure the inventive features of the BS 102.
  • the UE 104 includes at least one antenna 216, a transmitter 218, a receiver 220, a processor 222, an association module 224 and a protection mechanism module 226.
  • the transmitter 218 and the receiver 220 are connected to the antenna 216.
  • the transmitter 218 is configured to transmit outgoing signals to the BS 102 using the antenna 216.
  • the receiver 220 is configured to receive incoming signals from the BS 102 using the antenna 218.
  • the association module 224 operates with the processor 222 to perform operations related to associating with the BSS supported by the BS 102.
  • a beacon signal 402 is transmitted from the BS 102 to the UEs 104 in the BSS during the target beacon transmission time (TBTT) for that beacon signal, announcing that there are no non-GF devices in the BSS.
  • TBTT target beacon transmission time
  • an association request signal from the UE 106 which in this embodiment is a non-GF device, is received by the BS 102.
  • the association response signal is an acceptance of the requested association from the UE 106.
  • the technique described above can be used for Reduced Interframe Spacing (RIFS) protection.
  • the conforming devices 104 are RIFS-capable HT devices, i.e., HT devices that are capable of supporting RIFS and the non-conforming device 106 is a non-HT device or a non- RIFS-capable HT device, i.e., a HT device that is not capable of supporting RIFS.
  • an announcement signal is transmitted from the base station to the at least one conforming device of the presence of the non-conforming device in the wireless communication system before the transmission of the next beacon signal from the base station so that the at least one conforming device can implement a protection mechanism for transmissions.
  • announcement signals between beacon transmissions to notify conforming devices, e.g., the UE 104, in a BSS populated with only the conforming devices regarding the entry of non-conforming devices, e.g., the UE 106, into the BSS may allow the beacon transmission intervals to be increased, which will result in saved power for the devices in the BSS since there will be fewer beacon signals to be processed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Alarm Systems (AREA)

Abstract

L'invention concerne une station de base, un système et un procédé destinés à signaler la présence d'un premier dispositif non conforme dans un système de communication sans fil entre des émissions de signaux de balise, et faisant appel à un signal d'annonce concernant la présence du dispositif non conforme dans le système, ce signal étant émis à partir de la station de base en direction d'au moins un dispositif conforme avant l'émission du signal de balise suivant à partir de la station de base, de sorte que le dispositif conforme puisse mettre en oeuvre un mécanisme de protection pour les émissions.
EP07871390A 2006-11-07 2007-11-07 Station de base, système et procédé destinés à signaler la présence d'un premier dispositif non conforme entre des émissions de signaux de balise Withdrawn EP2103045A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85771906P 2006-11-07 2006-11-07
PCT/US2007/083916 WO2008067123A2 (fr) 2006-11-07 2007-11-07 Station de base, système et procédé destinés à signaler la présence d'un premier dispositif non conforme entre des émissions de signaux de balise

Publications (1)

Publication Number Publication Date
EP2103045A2 true EP2103045A2 (fr) 2009-09-23

Family

ID=39468598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07871390A Withdrawn EP2103045A2 (fr) 2006-11-07 2007-11-07 Station de base, système et procédé destinés à signaler la présence d'un premier dispositif non conforme entre des émissions de signaux de balise

Country Status (3)

Country Link
EP (1) EP2103045A2 (fr)
CN (1) CN101536421A (fr)
WO (1) WO2008067123A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101984696B (zh) * 2010-10-20 2012-09-05 苏州中科半导体集成技术研发中心有限公司 无线局域网中不同格式帧的检测方法及检测装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004057899A1 (fr) * 2002-12-19 2004-07-08 Nokia Corporation Systeme et mecanisme de transfert dans un environnement de bande de frequence multiple et equipement pour realisation
CA2594847A1 (fr) * 2005-02-07 2006-08-10 Samsung Electronics Co., Ltd. Procede et appareil servant a determiner une trame ack comme accuse de reception d'une trame de transmission sur un reseau wlan

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008067123A3 *

Also Published As

Publication number Publication date
WO2008067123A2 (fr) 2008-06-05
CN101536421A (zh) 2009-09-16
WO2008067123A3 (fr) 2009-02-12

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