Release 11.0

Release Notes and User Guide Supplement

10 Performance Benchmarking Process

This section describes the performance benchmarking process.

10.1DEFINITIONS

The following terms are used where these release notes discuss packet processing:

Aggregate Throughput Sum of uplink plus downlink traffic.

Offered Load Test equipment generates a specified load to the Ethernet interface of a module (SM or the AP). The specifications of the load include both packet size and packet rate.

Carried Load Test equipment measures the load delivered at the Ethernet interface of a module. The load is calculated from packet size and number of packets. As resources are exhausted at any point in the system, packets may be dropped. The Carried Load equals the Offered Load minus Dropped Packets.

Downlink/Uplink Load Ratio The ratio of downlink Carried Load to uplink Carried Load.

NOTE: Do not confuse the Downlink/Uplink Load Ratio with the Downlink Data configuration parameter. The Downlink/Uplink Load Ratio is determined from the Carried Loads. The Downlink Data is set by the operator and determines the split of downlink and uplink slots in the air frame.

10.2SYSTEM PERFORMANCE AND SYSTEM CONSTRAINTS

Different combinations of system inputs will result in different constraints limiting system performance.

Larger Packets

With larger packets (the system handles packets up to 1522 Bytes), the system constraint is airtime, which can also be stated as slots, or maximum bits per second.

This can be calculated as follows:

PMP 100 and PTP 100 Backhauls with 20MHz Channels:

64 Bytes/fragment x 2 fragments/slot x 34 slots/frame x 400 frames/sec x 8 bits/byte = 14 Mbps

This is an aggregate (uplink plus downlink) limit, as the Canopy system is a Time Division Duplex (TDD) system.

14 Mbps is a typical maximum aggregate throughput for larger packet sizes for an FSK system. Longer range settings can reduce the number of slots in a frame and packet size (breakage on 64-byte boundaries) can affect packing efficiency (the percentage of fragments fully packed with 64 bytes).

PMP 430 (5.4 and 5.8-GHz OFDM) with 5MHz Channels:

For 1/4 Cyclic Prefix the calculation is

64 Bytes/fragment x 3 fragments/slot x 15 slots/frame x 400 frames/sec x 8 bits/byte = 9.2 Mbps

Issue 1, March 2011

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Motorola PTP 100 (FSK), PMP 100 Performance Benchmarking Process, Definitions, System Performance and System Constraints

PTP 100 (FSK), PMP 400, PTP 200 (OFDM, PMP 100 specifications

Motorola has long been a key player in the wireless communications market, known for its innovative solutions that cater to various connectivity needs. Among its diverse product range, the Motorola PMP 100 and PTP 200 series stand out as robust solutions for both point-to-multipoint (PMP) and point-to-point (PTP) applications, utilizing advanced modulation technologies such as OFDM (Orthogonal Frequency-Division Multiplexing) and FSK (Frequency Shift Keying).

The Motorola PMP 100 series is designed for wireless broadband access, enabling operators to provide high-speed internet connectivity to rural and underserved areas. Its capability to support multiple users makes it an ideal choice for ISPs looking to deliver last-mile connectivity. The PMP 100 operates in the 2.4 GHz and 5.7 GHz frequency bands, ensuring flexibility and compliance with various regulatory requirements. One of its key features is the use of OFDM technology, which enhances spectral efficiency and minimizes interference, resulting in reliable data transmission even in challenging environments.

On the other hand, the PTP 200 series focuses on point-to-point communication, offering high-capacity backhaul links between two locations. The PTP 200 is optimized for performance in line-of-sight scenarios, featuring advanced antenna options and narrow beam width capabilities. This product also leverages OFDM technology, which provides increased data rates and improved capacity, supporting applications such as video surveillance, voice over IP, and enterprise connectivity.

In addition to the PMP and PTP 200 series, Motorola also offers the PMP 400 and PTP 100, which utilize FSK modulation. The PMP 400 series further advances the capabilities of wireless broadband access, featuring enhanced error correction, allowing for better performance in adverse conditions. This series is particularly well-suited for environments with high noise levels, making it a reliable choice for industrial applications. The PTP 100 series, on the other hand, operates effectively in point-to-point scenarios with lower bandwidth requirements, ensuring cost-effective solutions for dedicated leased line services.

In summary, the Motorola PMP and PTP series represent a comprehensive suite of wireless communication solutions, utilizing advanced modulation technologies like OFDM and FSK to deliver high-speed, reliable connectivity. These products demonstrate Motorola's commitment to innovation, addressing the diverse needs of users ranging from ISPs to enterprise customers, all while ensuring robust performance and ease of deployment in various environments.