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    • 30. 发明授权
    • Systems and methods for improved medium access control messaging
    • 改进介质访问控制消息传递的系统和方法
    • US06621872B1
    • 2003-09-16
    • US09282516
    • 1999-03-31
    • Vincent K. JonesMichael PollackGregory G. Raleigh
    • Vincent K. JonesMichael PollackGregory G. Raleigh
    • H04L2302
    • H04L1/0065H04L1/0042H04L1/0054H04L1/0057H04L1/006H04L1/007
    • Systems and methods for communicating medium access control (MAC) data without errors. Different encoding processes may be used to encode MAC data and data unrelated to MAC. The encoding processes used for MAC data employ more redundancy and are therefore capable of transmitting data without errors in more severe conditions than the encoding processes used for non-MAC data. Both MAC data and non-MAC data may be represented as a series of so-called symbols where each symbol is a complex value used to modulate a sinusoidal carrier signal. MAC data transmissions may employ a set of symbols having more widely spaced complex values than the symbol set used for non-MAC data transmissions. While the receiver is receiving MAC data, it may more easily distinguish which symbols have been sent, even when the symbols have been heavily corrupted with noise and interference. Thus network operation may be properly coordinated even in the presence of severe degradation of data transmission quality.
    • 用于传送媒体访问控制(MAC)数据的系统和方法没有错误。 可以使用不同的编码过程对MAC数据和与MAC无关的数据进行编码。 用于MAC数据的编码处理使用更多的冗余,并且因此能够在比用于非MAC数据的编码处理更恶劣的条件下传输数据而不发生错误。 MAC数据和非MAC数据都可以表示为一系列所谓的符号,其中每个符号是用于调制正弦载波信号的复数值。 MAC数据传输可以采用具有比用于非MAC数据传输的符号集具有更广泛间隔的复数值的一组符号。 当接收机正在接收MAC数据时,即使当符号已经被噪声和干扰严重损坏时,它可以更容易地区分已发送哪些符号。 因此,即使在数据传输质量严重恶化的情况下,也可以适当地协调网络操作。