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    • 25. 发明申请
    • ADJUSTMENT OF NEGATIVE WEIGHTS IN WEIGHTED ROUND ROBIN SCHEDULING
    • 加权ROBR调度中的负权重调整
    • US20120327948A1
    • 2012-12-27
    • US13165852
    • 2011-06-22
    • Govindarajan MohandossSantosh NarayananRayesh Kashinath RaikarPrabhakar Ballapalle
    • Govindarajan MohandossSantosh NarayananRayesh Kashinath RaikarPrabhakar Ballapalle
    • H04L12/56
    • H04L47/623H04L47/21
    • In one embodiment, a network processor services a plurality of queues having data using weighted round robin scheduling. Each queue is assigned an initial weight based on the queue's priority. During each cycle, an updated weight is generated for each queue by adding the corresponding initial weight to a corresponding previously generated decremented weight. Further, each queue outputs as many packets as it can without exceeding its updated weight. As each packet gets transmitted, the updated weight is decremented based on the number of blocks in that packet. If, after those packets are transmitted, the decremented weight is still positive and the queue still has data, then one more packet is transmitted, no matter how many blocks are in the packet. When a decremented weight becomes negative, the weights of the remaining queues are increased to restore the priorities of the queues as set by the initial weights.
    • 在一个实施例中,网络处理器使用加权轮询调度来服务具有数据的多个队列。 每个队列根据队列的优先级分配初始权重。 在每个周期期间,通过将相应的初始权重加到相应的先前产生的递减权重来为每个队列生成更新权重。 此外,每个队列输出尽可能多的分组,而不超过其更新的权重。 当每个分组被发送时,更新的权重基于该分组中的块的数量减少。 如果在发送这些分组之后,递减的权重仍然是正的,并且队列仍然具有数据,则无论数据包中有多少个块,都会发送一个数据包。 当递减的权重变为负值时,剩余队列的权重将增加,以恢复由初始权重设置的队列优先级。
    • 27. 发明授权
    • Receiver for error-protected packet-based frame
    • 接收器,用于基于错误保护的基于分组的帧
    • US08543893B2
    • 2013-09-24
    • US12837556
    • 2010-07-16
    • Atul Kisanrao HedaooRayesh Kashinath Raikar
    • Atul Kisanrao HedaooRayesh Kashinath Raikar
    • H03M13/00
    • H03M13/05H03M13/13H04L1/0052H04L1/0057
    • In one embodiment, a receiver for a frame of media packets employing the real-time transmission protocol (RTP) and forward error correction (FEC) is disclosed. The receiver comprises a packet buffer and an FEC decoder. After a packet is received by the packet buffer, the FEC decoder reads the packet and, as part of FEC processing, performs an XOR operation on the packet, without waiting for the entire frame (or, indeed, for any subsequent packet of the frame) to be received. The XOR operation results are accumulated until sufficient packets are received to reconstruct a missing packet in the frame. Because the XOR operations are performed immediately after a packet is received, without any delay from waiting for subsequent packets, the receiver has a very low latency, and the packet buffer may be relatively small.
    • 在一个实施例中,公开了一种采用实时传输协议(RTP)和前向纠错(FEC)的媒体分组帧的接收机。 接收机包括分组缓冲器和FEC解码器。 在分组缓冲器接收到分组之后,FEC解码器读取分组,并且作为FEC处理的一部分,在分组上执行XOR操作,而不等待整个帧(或实际上,对于帧的任何后续分组) )被接收。 积累XOR运算结果,直到接收到足够的数据包来重构帧中丢失的数据包。 由于在接收到分组之后立即执行XOR操作,所以接收机没有等待后续分组的任何延迟,所以接收机具有非常低的延迟,并且分组缓冲器可能相对较小。