A STA’s membership in a BSS is dynamic (STAs turn on, turn off, come within range, and go out of range).
To become a member of an infrastructure BSS or an IBSS, a STA joins the BSS using the synchronization
procedure described in 11.1.3.4. To start a new mesh BSS or to become a member of a mesh BSS, a STA
starts beaconing and the synchronization maintenance procedure described in 11C.12. To access all the
services of an infrastructure BSS, a STA becomes “associated.” These associations are dynamic and involve
the use of the distribution system service (DSS), which is described in 5.3.2. A mesh STA does not become
associated as there is no central entity in a mesh BSS (MBSS). Instead, a mesh STA peers with other mesh
STAs and thereby they form the MBSS.
2019-12-21 19:46:19
2.39MB
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该规范定义了OPC统一架构（OPC UA）PubSub通信模型。 PubSub通信模型定义了OPC UA发布订阅模式，而不是第4部分中由服务定义的客户机服务器模式。
该规范包括：
概念的一般介绍，
PubSub通信参数的定义，
一个PubSub配置信息模型，
并映射到消息和协议
2019-12-21 19:37:12
3.23MB
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FlexRay Communications System Protocol Specification Version 3.0.1
2019-12-21 19:35:04
2.78MB
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Type 1000BASE-T PCS, type 1000BASE-T PMA sublayer, and type 1000BASE-T Medium
Dependent Interface (MDI) are defined. This supplement provides fully functional, electrical
and mechanical specifications for the type 1000BASE-T PCS, PMA, and MDI. This supplement also
specifies the baseband medium used with 1000BASE-T.
2019-12-21 19:28:17
1.35MB
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。DisplayPort1.4将支持 8K 分辨率的信号传输，兼容 USB Type-C 接口。从本次更新的技术参数可以看到，这次的eDP 1.4a接口在显示适配器及显示器之间提供4条HBR3高速通道，单通道带宽达到了8.1Gbps，这些通道可独立运行，也可以成对使用，4通道理论带宽达到了32.4Gbps，足以支持10位色彩的4K 120Hz输出，也可以支持8K 60Hz输出。
2019-12-21 18:57:34
9.66MB
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现在网上很难找到USB3.0的中文规格，而这里我们提供了USB3.0协议的中文版，让大家能够快速的上手usb3.0
2019-12-21 18:57:17
5.4MB
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