WO2007111406A1 - Procédé et appareil permettant de régler la largeur de bande d'un dispositif - Google Patents

Procédé et appareil permettant de régler la largeur de bande d'un dispositif Download PDF

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Publication number
WO2007111406A1
WO2007111406A1 PCT/KR2006/004938 KR2006004938W WO2007111406A1 WO 2007111406 A1 WO2007111406 A1 WO 2007111406A1 KR 2006004938 W KR2006004938 W KR 2006004938W WO 2007111406 A1 WO2007111406 A1 WO 2007111406A1
Authority
WO
WIPO (PCT)
Prior art keywords
bandwidth
allocating
request
adjusting
requesting
Prior art date
Application number
PCT/KR2006/004938
Other languages
English (en)
Inventor
Jin-Woo Hong
Hyun-Ah Sung
Dae-Gyu Bae
Se-Hoon Moon
Original Assignee
Samsung Electronics Co., Ltd.
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 Samsung Electronics Co., Ltd. filed Critical Samsung Electronics Co., Ltd.
Publication of WO2007111406A1 publication Critical patent/WO2007111406A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present invention relates to wireless universal serial bus (WUSB) communication, and more particularly, to a method and apparatus for efficiently performing WUSB communication.
  • WUSB wireless universal serial bus
  • USB is an interface standard for connecting a personal computer (PC) to peripherals, and the scope of USB application is being expanded to consumer electronics (CE) and mobile devices.
  • CE consumer electronics
  • the development of a wireless communication environment requires wireless communication support for existing wired communication standards.
  • a WUSB standard for supporting wireless communication to USB has been established.
  • DRD dual role device
  • P2P peer-to-peer
  • the DRD can operate as a host or a device at the same time in various WUSB clusters.
  • a multifunction USB host and a multifunction USB device are combined as a single physical device.
  • P2P In the P2P method, two devices perform P2P communication by each operating as a host and a device at the same time by generating a default link and a reverse link between the two devices.
  • P2P models the USB On-The-Go (OTG) standard, performing role swapping through host negotiation.
  • OOG USB On-The-Go
  • the present invention provides a method and apparatus for adjusting a bandwidth of a device when the device connected in a P2P method by WUSB cannot provide a sufficient service with a currently allocated bandwidth.
  • a method of adjusting a bandwidth of a device comprising: requesting the device to additionally allocate a bandwidth; and obtaining a predetermined bandwidth allocated from the device.
  • the requesting may comprise if a sufficient service cannot be provided with a currently allocated bandwidth, requesting the device to additionally allocate a bandwidth.
  • a method of adjusting a bandwidth of a device comprising: receiving a request for additionally allocating a bandwidth from the device; and allocating a predetermined bandwidth to the device in response to the request.
  • the allocating may comprise allocating a bandwidth as the requested bandwidth.
  • the allocating may comprise allocating a remaining bandwidth by excluding a currently used portion of the bandwidth as the requested bandwidth.
  • a computer readable recording medium storing a computer readable program for executing the method described above.
  • an apparatus for adjusting a bandwidth of a device comprising: a bandwidth requesting unit requesting the device to additionally allocate a bandwidth; and a bandwidth adjuster obtaining a predetermined bandwidth allocated from the device.
  • the bandwidth requesting unit may request the device to additionally allocate a bandwidth if a sufficient service cannot be provided with a currently allocated bandwidth.
  • an apparatus for adjusting a bandwidth of a device comprising: a request receiver receiving a request for additionally allocating a bandwidth from the device; and a bandwidth allocator allocating a predetermined bandwidth to the device in response to the request.
  • the bandwidth allocator may allocate a bandwidth as the requested bandwidth.
  • the bandwidth allocator may allocate a remaining bandwidth by excluding a currently used portion of the bandwidth as the requested bandwidth.
  • FlG. 1 is a conceptual diagram of devices connected by wireless universal serial bus (WUSB) using a P2P method;
  • FlG. 2 is a flowchart illustrating a method of adjusting a bandwidth of a device according to an embodiment of the present invention
  • FlG. 3 is a block diagram of a bandwidth adjustment apparatus of a first device and a second device according to an embodiment of the present invention.
  • FIGS. 4 A through 4C are reference diagrams for explaining a method of adjusting a bandwidth of a device according to an embodiment of the present invention.
  • FlG. 1 is a conceptual diagram of devices 100 and 110 connected by wireless universal serial bus (WUSB) using a P2P method.
  • WUSB wireless universal serial bus
  • FlG. 2 is a flowchart illustrating a method of adjusting a bandwidth of a device according to an embodiment of the present invention.
  • a default link 120 by which a first device 100 operates as a host and a second device 110 operates as a device is generated.
  • the second device 110 is associated with the first device 100 by transmitting a connect device notification message to the first device 100 in response to the MMC.
  • MMC microscheduled management command
  • a reverse link 130 by which the second device 110 operates as a host and the first device 100 operates as a device is generated.
  • the first device 100 is associated with the second device 110 by transmitting a connect device notification message to the second device 110 in response to the MMC.
  • the first device 100 determines whether an application operating as a host can provide sufficient quality of service (QoS) with the currently allocated bandwidth.
  • QoS quality of service
  • the first device 100 requests the second device 110 to additionally allocate a bandwidth, which is not used by the second device 110, to the first device 100.
  • the first device 100 performs a control transfer using a PASS-MAS (medium access slot) command for transferring the number of MASs additionally needed.
  • PASS-MAS medium access slot
  • the second device 110 allocates a predetermined bandwidth to the first device 100 in response to the request from the first device 100.
  • the bandwidth allocated by the second device 110 may be a remaining bandwidth excluding the bandwidth to be used by the second device 110.
  • the second device 110 transmits location information of supportable MASs excluding the bandwidth to be used by the second device 110 based on the number of MASs transferred by the PASS-MAS command from the first device 100.
  • FlG. 4A illustrates data transmitted from the second device 110 to the first device 100 in operation 240. In FlG. 4A, 'bmRe- questType' is illustrated in FlG.
  • 'w Value' denotes the number of MASs requested by the first device 100
  • 'wLength' denotes the length of distributed reservation protocol (DRP) allocation
  • 'Data' denotes information on the MASs allocated by the second device 110.
  • the first device 100 inserts a DRP information element (IE) corresponding to DRP allocation changed by the predetermined bandwidth allocated by the second device 110 into a beacon and broadcasts the beacon.
  • IE DRP information element
  • the first device 100 communicates via WUSB using a bandwidth changed by including the predetermined bandwidth allocated by the second device 110.
  • FIG. 3 is a block diagram of a bandwidth adjustment apparatus of the first device
  • the bandwidth adjustment apparatus includes a bandwidth request unit 101, a bandwidth adjuster 102, a request receiver 111, and a bandwidth allocator 112.
  • the first device 100 and the second device 110 are associated with each other by the P2P method used with WUSB. That is, the first device 100 and the second device 110 are associated with each other through the default link 120 by which the first device 100 operates as a host and the second device 110 operates as a device and the reverse link 130 by which the second device 110 operates as a host and the first device 100 operates as a device.
  • the first device 100 includes the bandwidth request unit 101 and the bandwidth adjuster 102.
  • the bandwidth request unit 101 requests the second device 110 to additionally allocate a bandwidth, which is not used by the second device 110, to the first device 100.
  • the bandwidth request unit 101 performs a control transfer using a PASS-MAS command for transferring the number of MASs additionally needed.
  • the bandwidth request unit 101 requests the second device 110 to additionally allocate a bandwidth to the first device 100.
  • the bandwidth adjuster 102 obtains a predetermined bandwidth allocated by the bandwidth allocator 112 of the second device 110.
  • the second device 110 includes the request receiver 111 and the bandwidth allocator 112.
  • the request receiver 111 receives a request for additionally allocating a bandwidth from the bandwidth request unit 101 of the first device 100 in the form of a PASS_MAS command.
  • the bandwidth allocator 112 allocates a predetermined bandwidth to the first device 100.
  • the bandwidth allocated by the bandwidth allocator 112 may be a remaining bandwidth excluding a bandwidth to be used by the second device 110.
  • the bandwidth allocator 112 transmits location information of supportable MASs excluding the bandwidth to be used by the second device 110 based on the number of MASs transferred by the PASS-MAS command from the bandwidth request unit 101.
  • the invention can also be embodied as computer readable codes on a computer
  • the computer readable recording medium is any data storage device that can store programs or data which can be thereafter read by a computer system. Examples of the computer readable recording medium include read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tapes, hard disks, floppy disks, flash memory, optical data storage devices, and so on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un procédé et un appareil permettant de régler la largeur de bande d'un dispositif utilisé dans le cadre d'une communication par bus sériel universel sans fil (WUSB). Lorsqu'un dispositif relié à l'aide d'un procédé poste à poste utilisé pour une communication WUSB ne peut pas fournir un service suffisant avec une largeur de bande attribuée actuellement, la qualité de service de la communication peut être améliorée par un réglage souple de la largeur de bande.
PCT/KR2006/004938 2006-03-24 2006-11-23 Procédé et appareil permettant de régler la largeur de bande d'un dispositif WO2007111406A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020060026983A KR20070096461A (ko) 2006-03-24 2006-03-24 디바이스의 대역폭 조절 방법 및 장치
KR10-2006-0026983 2006-03-24

Publications (1)

Publication Number Publication Date
WO2007111406A1 true WO2007111406A1 (fr) 2007-10-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2006/004938 WO2007111406A1 (fr) 2006-03-24 2006-11-23 Procédé et appareil permettant de régler la largeur de bande d'un dispositif

Country Status (2)

Country Link
KR (1) KR20070096461A (fr)
WO (1) WO2007111406A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012047924A1 (fr) * 2010-10-06 2012-04-12 Qualcomm Incorporated Procédés et appareil permettant de supporter le partage des privilèges dans un système de poste à poste

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5805203A (en) * 1996-05-21 1998-09-08 Jsm Co., Inc. Time division, multiplexed, shared bandwidth communication system
US20020181504A1 (en) * 2001-05-09 2002-12-05 Ulrich Abel Method and apparatus for adjusting the bandwidth of a connection between at least two communication endpoints in a data network
EP1367783A1 (fr) * 2002-05-29 2003-12-03 Nokia Corporation Demande comprenant la classe d'appareil pour l'allocation dynamique de largeur de bande pour connections au point d'accès de type bluetooth
US20050083842A1 (en) * 2003-10-17 2005-04-21 Yang Mi J. Method of performing adaptive connection admission control in consideration of input call states in differentiated service network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5805203A (en) * 1996-05-21 1998-09-08 Jsm Co., Inc. Time division, multiplexed, shared bandwidth communication system
US20020181504A1 (en) * 2001-05-09 2002-12-05 Ulrich Abel Method and apparatus for adjusting the bandwidth of a connection between at least two communication endpoints in a data network
EP1367783A1 (fr) * 2002-05-29 2003-12-03 Nokia Corporation Demande comprenant la classe d'appareil pour l'allocation dynamique de largeur de bande pour connections au point d'accès de type bluetooth
US20050083842A1 (en) * 2003-10-17 2005-04-21 Yang Mi J. Method of performing adaptive connection admission control in consideration of input call states in differentiated service network

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012047924A1 (fr) * 2010-10-06 2012-04-12 Qualcomm Incorporated Procédés et appareil permettant de supporter le partage des privilèges dans un système de poste à poste
CN103141134A (zh) * 2010-10-06 2013-06-05 高通股份有限公司 用于支持对对等系统中的权限进行共享的方法和装置
US8938509B2 (en) 2010-10-06 2015-01-20 Qualcomm Incorporated Methods and apparatus for supporting sharing of privileges in a peer to peer system
CN103141134B (zh) * 2010-10-06 2016-08-03 高通股份有限公司 用于支持对对等系统中的权限进行共享的方法和装置

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Publication number Publication date
KR20070096461A (ko) 2007-10-02

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