11.
    发明专利
    未知

    公开(公告)号:AT398871T

    公开(公告)日:2008-07-15

    申请号:AT04755537

    申请日:2004-06-18

    Applicant: CISCO TECH INC

    Abstract: A power-save QSTA notifies an Access Point (AP) that its operating in a automatic power-save delivery (APSD) mode and negotiates a periodic wakeup schedule and a scheduled startup time with the AP. Wakeup times are synchronized with the 802.11 Timer Synchronization Function (TSF). The AP automatically sends frames to the QSTA when it determines the QSTA is in an awake state, otherwise downlink frames are buffered. The AP uses a combination poll+EDCF access method wherein at the start of each wakeup period the AP sends a poll to the QSTA, the poll having a flag that indicates to the QSTA if the AP has a downlink fame buffered for the QBTA. In addition, a Proxy ARP Server in an AP maintains IP/MAC bindings for associated clients so that when the AP receives a proxy ARP request for a client, the AP may respond for the client.

    A METHOD FOR MULTICAST LOAD BALANCING IN WIRELESS LANS

    公开(公告)号:CA2585881A1

    公开(公告)日:2006-05-11

    申请号:CA2585881

    申请日:2005-10-11

    Applicant: CISCO TECH INC

    Abstract: A method for multicast load balancing in a wireless network having a plurality of access points. The method includes setting a maximum Internet protocol multicast bandwidth for the access points, receiving an admissions control request from a client at one of the access points, and determining whether the admissions control request from the client is for an admitted or unadmitted multicast stream at the access point. The access point is responsive to the admissions control request for the admitted multicast stream by servicing the admitted multicast stream and to the admissions control request for the unadmitted multicast stream by servicing the unadmitted multicast stream where the bandwidth required for the unadmitted multicast stream, plus that portion of the access point bandwidth currently used for all existing downlink multicast streams, does not exceed the maximum internet protocol multicast bandwidth for the access point.

    A uniform power save method for 802.11E stations

    公开(公告)号:AU2004301581B2

    公开(公告)日:2009-11-19

    申请号:AU2004301581

    申请日:2004-06-18

    Applicant: CISCO TECH INC

    Abstract: A power-save QSTA notifies an Access Point (AP) that its operating in a automatic power-save delivery (APSD) mode and negotiates a periodic wakeup schedule and a scheduled startup time with the AP. Wakeup times are synchronized with the 802.11 Timer Synchronization Function (TSF). The AP automatically sends frames to the QSTA when it determines the QSTA is in an awake state, otherwise downlink frames are buffered. The AP uses a combination poll+EDCF access method wherein at the start of each wakeup period the AP sends a poll to the QSTA, the poll having a flag that indicates to the QSTA if the AP has a downlink fame buffered for the QBTA. In addition, a Proxy ARP Server in an AP maintains IP/MAC bindings for associated clients so that when the AP receives a proxy ARP request for a client, the AP may respond for the client.

    15.
    发明专利
    未知

    公开(公告)号:DE602004014510D1

    公开(公告)日:2008-07-31

    申请号:DE602004014510

    申请日:2004-06-18

    Applicant: CISCO TECH INC

    Abstract: A power-save QSTA notifies an Access Point (AP) that its operating in a automatic power-save delivery (APSD) mode and negotiates a periodic wakeup schedule and a scheduled startup time with the AP. Wakeup times are synchronized with the 802.11 Timer Synchronization Function (TSF). The AP automatically sends frames to the QSTA when it determines the QSTA is in an awake state, otherwise downlink frames are buffered. The AP uses a combination poll+EDCF access method wherein at the start of each wakeup period the AP sends a poll to the QSTA, the poll having a flag that indicates to the QSTA if the AP has a downlink fame buffered for the QBTA. In addition, a Proxy ARP Server in an AP maintains IP/MAC bindings for associated clients so that when the AP receives a proxy ARP request for a client, the AP may respond for the client.

    OPTIMIZING 802.11 POWER-SAVE FOR IP MULTICAST GROUPS

    公开(公告)号:CA2543240A1

    公开(公告)日:2005-06-23

    申请号:CA2543240

    申请日:2004-08-31

    Applicant: CISCO TECH INC

    Abstract: A method for providing a superior quality of service for multicast data streams delivered over a wireless local area network. As Internet Protocol multicast data streams are received by an access point, the access point observes Internet Group Multicast Protocol registration messages to determine which of its associated stations subscribe to each multicast data stream. The access point then determines which of the multicast data streams it receives have only active subscribing stations as opposed to those data streams having at least one associated station operating in power-save mode. The access point will automatically transmit each multicast data stream having only active subscribers immediately to the associated active stations, while buffering the multicast data stream for which there is at least one associated station operating in power-save mode.

    Optimizing 802.11 power-save for IP multicast groups

    公开(公告)号:AU2004297927A1

    公开(公告)日:2005-06-23

    申请号:AU2004297927

    申请日:2004-08-31

    Applicant: CISCO TECH INC

    Abstract: A method for providing a superior quality of service for multicast data streams delivered over a wireless local area network. As Internet Protocol multicast data streams are received by an access point, the access point observes Internet Group Multicast Protocol registration messages to determine which of its associated stations subscribe to each multicast data stream. The access point then determines which of the multicast data streams it receives have only active subscribing stations as opposed to those data streams having at least one associated station operating in power-save mode. The access point will automatically transmit each multicast data stream having only active subscribers immediately to the associated active stations, while buffering the multicast data stream for which there is at least one associated station operating in power-save mode.

    A UNIFORM POWER SAVE METHOD FOR 802.11E STATIONS

    公开(公告)号:CA2706062C

    公开(公告)日:2015-09-01

    申请号:CA2706062

    申请日:2004-06-18

    Applicant: CISCO TECH INC

    Abstract: A power-save QSTA notifies an Access Point (AP) that its operating in a automatic power-save delivery (APSD) mode and negotiates a periodic wakeup schedule and a scheduled startup time with the AP. Wakeup times are synchronized with the 802.11 Timer Synchronization Function (TSF). The AP automatically sends frames to the QSTA when it determines the QSTA is in an awake state, otherwise downlink frames are buffered. The AP uses a combination poll+EDCF access method wherein at the start of each wakeup period the AP sends a poll to the QSTA, the poll having a flag that indicates to the QSTA if the AP has a downlink fame buffered for the QSTA. In addition, a proxy ARP Server in an AP maintains IP/MAC bindings for associated clients so that when the AP receives a proxy ARP request for a client, the AP may respond for the client.

    MOBILE ETHERNET
    19.
    发明专利

    公开(公告)号:CA2521505C

    公开(公告)日:2014-05-20

    申请号:CA2521505

    申请日:2004-04-05

    Applicant: CISCO TECH INC

    Inventor: MEIER ROBERT C

    Abstract: A Mobile Ethernet Protocol that is used to logically extend a "home VLAN", through an Ethernet/IP "campus network", to mobile nodes on "foreign subnets". The network architecture used for Mobile Ethernet is hierarchical and includes a Subnet Context Manager per subnet and a central Campus Context Manager. The protocol is generally based on the standard Mobile IPv4 protocol, but includes significant extensions to standard Mobile IP including using an 802 address as the permanent MN identifier, rather than an IP address, encapsulating and sending Ethernet frames through IP tunnels, and configuring a single Mobile Ethernet HA to provide access to multiple home VLANs wherein Home VLAN bindings for MNs are dynamically established. A MN does not need to be configured with a permanent IP address.

    OPTIMIZING 802.11 POWER-SAVE FOR IP MULTICAST GROUPS

    公开(公告)号:CA2543240C

    公开(公告)日:2010-10-12

    申请号:CA2543240

    申请日:2004-08-31

    Applicant: CISCO TECH INC

    Abstract: A method for providing a superior quality of service for multicast data streams delivered over a wireless local area network. As Internet Protocol multicast data streams are received by an access point, the access point observes Internet Group Multicast Protocol registration messages to determine which of its associated stations subscribe to each multicast data stream. The access point then determines which of the multicast data streams it receives have only active subscribing stations as opposed to those data streams having at least one associated station operating in power-save mode. The access point will automatically transmit each multicast data stream having only active subscribers immediately to the associated active stations, while buffering the multicast data stream for which there is at least one associated station operating in power-save mode.

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