Invention Grant
- Patent Title: Providing multicast transmissions with partial state block acknowledgments and retries
- Patent Title (中): 提供多播传输与部分状态块确认和重试
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Application No.: US13280835Application Date: 2011-10-25
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Publication No.: US08730960B2Publication Date: 2014-05-20
- Inventor: Brian Donald Hart , Santosh Pandey , Rohit Suri
- Applicant: Brian Donald Hart , Santosh Pandey , Rohit Suri
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Tucker Ellis LLP
- Main IPC: H04J3/26
- IPC: H04J3/26 ; H04H20/71 ; H04W4/00

Abstract:
Described herein are techniques that provide for the transmission of a multicast stream that can resend frames that were not received using the partial state block acknowledgement mechanism. In an example embodiment, an access point reserves a channel for a transmission opportunity of a sufficient length to allow the sending of multicast data, block acknowledgement request, and receipt of a block acknowledgement. Optionally, the transmission opportunity may be of sufficient length to enable packets that re resent to be sent during the transmission opportunity, thereby preventing other stations on the channel from gaining control of the channel. Alternatively the access point may employ an appropriate backoff between TXOPs to AP prevent (T)DLS traffic to the recipients of the multicast stream. The access point does not send any frames from other queues during the transmission opportunity.
Public/Granted literature
- US20130100952A1 PROVIDING MULTICAST TRANSMISSIONS WITH PARTIAL STATE BLOCK ACKNOWLEDGMENTS AND RETRIES Public/Granted day:2013-04-25
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