(RRU)Ericsson Remote Radio Unit

AN Ericsson RRU Image


A Remote Radio Unit (RRU) is a critical component in modern wireless communication systems, especially in cellular networks

 It is an essential part of the base station and plays a key role in transmitting and receiving radio signals between the network and user devices

:Key Functions

Signal Processing: The RRU handles the conversion of digital signals to radio frequency (RF) signals and vice versa

.Amplification: It amplifies the RF signals to ensure they can travel long distances between the base station and mobile devices
.Filtering: The RRU filters the signals to minimize interference and ensure high-quality communication
Duplexing: It manages the simultaneous transmission and reception of signals using techniques like Time Division Duplexing (TDD) or Frequency Division Duplexing (FDD)

:Advantages

.Reduced Latency: Placing RRUs closer to antennas reduces the latency in the communication process
.Improved Signal Quality: Proximity to the antennas helps in improving the overall signal quality and strength
.Scalability: RRUs enable easier and more flexible network expansion, as additional units can be added to meet increasing demand

.Cost-Effectiveness: They reduce the need for extensive cabling and large equipment shelters, cutting down infrastructure costs

:Deployment

RRUs are typically mounted on towers, rooftops, or other elevated structures. They are connected to the Baseband Unit (BBU) via fiber optic cables, which allows for efficient data transmission between the RRU and the core network

:Ericsson RRU 4415 b7

Ericsson macro Radio 4415 is a 4T/4R radio with 4x40W output power. As part of the Ericsson Radio System portfolio Radio 4415 has best in class design when it comes to radio performance and power efficiency for wide area 3GPP radio products. Radio 4415 has by use of its small and smart dimensions support for a wide range of mounting scenarios and provides a pioneering flexibility within its product segment with the Onebolt Installation. With Radio 4415 Ericsson evolves the macro radio part of the portfolio to become even more flexible and making it easier than ever to make small and efficient single and multiband macro radio installations. The Radio 4415 should preferably be located near the antenna and can be located up to 40 km from the baseband unit. A fiber optic cable can be used to connect the Radio 4415 to the baseband unit and several radio units can be connected in a cascade or star configuration. Radio 4415 provides support for AISG TMA and RET towards the antenna system. GSM, WCDMA and LTE is supported with up to 8 carriers on both GSM and WCDMA as well as up to 90 MHz LTE. Four duplex (TX/RX) branches provide in-built support for MIMO, antenna calibration and TX/RX diversity

:Different Models

.Ericsson offers various RRU models tailored for different applications. Some of these models include

:Ericsson RRU 2203

.Frequency Bands: Supports multiple frequency bands, primarily for 4G LTE
.Power Output: Moderate power output suitable for urban and suburban areas
.Size and Weight: Compact and lightweight, facilitating easy installation
.Applications: Ideal for areas requiring high performance in a small form factor

:Ericsson RRU 2212

.Frequency Bands: Similar to RRU 2203, supporting multiple frequency bands
.Power Output: Higher power output compared to RRU 2203, providing broader coverage
.Size and Weight: Slightly larger but still compact for its power class
.Applications: Suitable for areas needing more extensive coverage, such as suburban and rural environments

:Ericsson RRU 2242

.Frequency Bands: Designed for lower frequency bands
.Power Output: Optimized for lower frequencies, offering extended coverage
.Size and Weight: Compact design tailored for broader and more challenging environments
.Applications: Perfect for rural and remote areas where coverage is critical

:Ericsson RRU 4418

.Frequency Bands: Supports high-frequency bands, including Band 40 (2300 MHz)
.Power Output: High power output for dense urban environments
.Size and Weight: Relatively compact given its high power capabilities
.Applications: Designed for high-density urban areas needing robust and reliable connectivity

:Ericsson RRU 4418 B40T

.Frequency Bands: Specifically tuned for Band 40 (2300 MHz)
.Power Output: High power output, ideal for providing coverage in busy urban areas
.Size and Weight: Similar in size to other high-power models, balancing performance and ease of installation
.Applications: Best suited for high-traffic areas where high capacity and reliability are required

:Ericsson RRU 8843

.Frequency Bands: Supports a wide range of bands, including mid-band frequencies for 5G NR
.Power Output: High power output to support 5G applications
.Size and Weight: Designed for compact deployment in various environments
.Applications: Ideal for 5G deployments, providing high capacity and low latency

:Ericsson RRU 8873

.Frequency Bands: Designed for low and mid-band frequencies, suitable for both 4G and 5G
.Power Output: High power output for extensive coverage and high capacity
.Size and Weight: Efficient design for easy installation and integration
.Applications: Suitable for both urban and suburban deployments, enhancing network performance

:Ericsson RRU 4480

.Frequency Bands: Supports a wide range of frequencies, including high-band mmWave for 5G
.Power Output: Extremely high power output for dense urban and hotspot areas
.Size and Weight: Compact but powerful design to handle high data rates
.Applications: Ideal for dense urban areas, stadiums, and other high-traffic locations requiring ultra-fast connectivity

:AIR (Antenna Integrated Radio)

.Frequency Bands: Various models support multiple bands, integrating both antenna and radio
.Power Output: Varies by model but generally designed to optimize the integrated approach
.Size and Weight: Integrated design reduces the need for separate antenna and radio units, streamlining installation
.Applications: Ideal for modern network deployments aiming for reduced infrastructure complexity and cost