Multi-AP Specification V2.0 中文翻译 第10章 Link metric collection（链路度量采集）

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10 Link metric collection（链路度量采集）

10.1 Backhaul link metrics

This section defines the protocol for a Multi-AP device to convey backhaul link metric information associated with each of the BSSs in which the Multi-AP device is operating.

本节定义了用于Multi-AP设备的协议，以传达与Multi-AP设备在其中运行的每个BSS相关联的回程链路度量信息。

 The 1905 link metric information dissemination protocol is used to query and report link metrics for backhaul links (e.g. link between a Multi-AP Agent AP interface and a Multi-AP Agent backhaul STA interface, or between two Multi-AP Agent Ethernet interfaces. See [2]). If triggered, a Multi-AP Controller and Multi-AP Agent shall send a 1905 Link metric query message to a Multi-AP Agent.

1905链路量度信息分发协议用于查询和报告BACKHAUL链路的链路量度（例如，Multi-AP Agent AP接口和Multi-AP Agent backhaul STA接口之间的链路，或者两个Multi-AP Agent以太网接口之间的链路。 见[2]）。 如果被触发，则Multi-AP控制器和Multi-AP代理应向Multi-AP代理发送1905链路度量查询消息。

Note: Additional clarifications with respect to fields in a 1905 Transmitter link metric TLV are as follows:

注意：关于1905 Transmitter链路度量TLV中的字段的其他说明如下：

• macThroughputCapacity field is the estimated MAC data rate in Mb/s for the backhaul link in the downlink direction when reported by a Multi-AP Agent that operates the AP for the link, or the estimated MAC data rate in Mb/s for the backhaul link in the uplink direction when reported by the Multi-AP Agent that operates the backhaul STA for the link, if 100% of channel air time and BSS operating bandwidth were to be available.

•macThroughputCapacity字段是操作该链路的AP的Multi-AP代理报告时，下行的backhaul链路的评估MAC数据速率（Mb/s），或者操作该链路的backhaul STA的Multi-AP代理报告时，上行的backhaul链路的评估MAC数据速率（Mb/s），如果信道广播时间和BSS工作带宽都是100%，则可用。

• linkAvailability field is the predicted percentage of Air Time that the backhaul link would consume given the current channel condition, assuming sufficient BE traffic is generated over the backhaul link to the client STAs and/or other backhaul STAs associated with the downstream Multi-AP Agent to fill this Air Time.

•linkAvailability字段是在给定当前信道条件下backhaul链路将消耗的时空的预测百分比，假设通过回程链路生成足够的BE通信量到客户端sta和/或与下游多AP代理相关联的其他回程sta以填充此广播时间。。

Note: Additional clarifications with respect to fields in a 1905 Receiver link metric TLV are as follows:

注意：关于1905 Receiver link metric TLV中字段的其他说明如下：

• The RSSI field is calculated from the RCPI of a number of PPDU received when reported by a Multi-AP Agent that operates the AP for the link, or the Beacon RSSI when reported by a Multi-AP Agent that operates the backhaul STA for the link.

•RSSI字段是根据由操作链路的AP的Multi-AP代理报告时接收到的多个PPDU的RCPI计算的，或者由操作链路的backhaul STA的Multi-AP 代理报告的Beacon RSSI计算的。

Note: A Multi-AP Agent supporting [11] might use the transmitter and receiver Link metric TLVs as defined in [11] to report the metrics of Generic Phy non-Wi-Fi interfaces.

注意：支持[11]的Multi-AP Agent可能会使用[11]中定义的发送器和接收器链路度量TLV来报告通用Phy非Wi-Fi接口的度量。

10.2 Per-AP metrics and bulk STA metrics（本节每AP指标和批量STA指标）

This section defines the protocol for a Multi-AP Agent to convey per-AP metric information about each of the BSS (fronthaul and/or backhaul) it is operating. These metrics pertain to the BSS overall, and can also include information relating to every STA associated to the AP. For metrics relating to a single specific STA that might be associated to the BSS, see section 10.3.

    定义了Multi-AP代理的协议，该协议用于传送有关其正在运行的每个BSS（fronthaul和/或backhaul）的每个AP度量信息。这些度量与BSS总体相关，还可以包括与AP相关联的每个STA的相关信息， 有关可能与BSS相关连的单个特定STA的指标，见10.3节。

10.2.1 Link metric measurements from the AP

If triggered, a Multi-AP Controller shall send an AP Metrics Query message per section 17.1.16 to a Multi-AP Agent.

如果被触发，则Multi-AP控制器应按照第17.1.16节的要求向Multi-AP代理发送AP度量查询消息。

If a Multi-AP Agent receives an AP Metrics Query message, then it shall respond within one second with an AP Metrics response message (section 17.1.17) containing the following TLVs:

如果Multi-AP代理收到AP 度量查询消息，则它应在1秒内用包含以下TLV的AP 度量响应消息（第17.1.17节）进行响应：

• One AP Metrics TLV per section 17.2.22 for each of the BSSs specified in the query.

•根据第17.2.22节，为查询中指定的每个BSS提供一个AP度量TLV。

• If the Multi-AP Agent implements Profile-2, it shall include one AP Extended Metrics TLV for each of the BSSs specified in the query.

•如果Multi-AP代理实现Profile-2，它应为查询中指定的每个BSS包含一个AP扩展度量TLV。

• If the Multi-AP Agent implements Profile-2, it shall include one Radio Metrics TLV for each of the radios specified in the query.

•如果Multi-AP代理实现Profile-2，它应包括查询中指定的每个radio的一个radio度量TLV。

The AP Metrics Response message shall contain the same MID that was received in the AP Metrics Query message.

AP Metrics Response消息应包含与AP Metrics Query消息中收到的相同的MID。

If a Multi-AP Agent receives a Metric Reporting Policy TLV with AP Metrics Reporting Interval field set to a non-zero value, it shall send an AP Metrics Response message to the Multi-AP Controller once every reporting interval specified in the field and containing the following TLVs:

如果Multi-AP代理接收到一个度量报告策略TLV，并且AP度量报告间隔字段设置为非零值，则它应在字段中指定的每个报告间隔中向Multi-AP控制器发送一个AP度量响应消息，该消息包含以下TLV：

• One AP Metrics TLV for each BSS which it is operating.

•一个AP度量其正在运行的每个BSS的TLV。

• If the Multi-AP Agent implements Profile-2, it shall include one AP Extended Metrics TLV for each BSS which it is operating

•如果Multi-AP代理实施Profile-2，它应为其正在运行的每个BSS包括一个AP扩展度量TLV

• If the Multi-AP Agent implements Profile-2, it shall include one Radio Metrics TLV for each radio which it is operating.

•如果Multi-AP代理实现Profile-2，则它应包括其正在运行的每个无线电的一个无线电指标TLV。

If a Multi-AP Agent receives a Metric Reporting Policy TLV with AP Metrics Channel Utilization Reporting Threshold field set to a non-zero value for a given radio, it shall measure the channel utilization on that radio in each consecutive implementation-specific measurement period and, if the most recently measured channel utilization has crossed the reporting threshold in either direction (with respect to the previous measurement), it shall send an AP Metrics Response message to the Multi-AP Controller containing the following TLVs:

如果Multi-AP代理接收到一个度量报告策略TLV，并且AP Metrics Channel Utilization Reporting Threshold字段设置为给定无线电的非零值，则它应在每个连续的特定于实现的测量周期中测量该无线电上的信道利用率，并且如果最近测量的信道利用率已经超过在任一方向上的报告阈值（相对于先前的测量），它应向包含以下TLV的Multi-AP控制器发送AP度量响应消息：

• One AP Metrics TLV for each of the BSSs on that radio.

•一个AP度量该无线电上每个BSS的TLV。

• If the Multi-AP Agent implements Profile-2, it shall include one AP Extended Metrics TLV for each of the BSSs on that radio.

•如果多AP代理实现Profile-2，它应包括该无线电上每个BSS的一个AP扩展度量TLV。

• If the Multi-AP Agent implements Profile-2, it shall include o