irelay Using LTE Relay as a Backhaul for Small Cells High Performance, Low Cost Backhaul Extending the range of LTE-Advanced Public Access

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1 irelay Using LTE Relay as a Backhaul for Small Cells High Performance, Low Cost Backhaul Extending the range of LTE-Advanced Public Access a leading LTE Small and Compact RAN solution provider

2 irelay Saving OPEX. Immediate Backhaul Activation. Self Organising, Plug and Play

3 Backhaul Management Solution for Small Cell Deployments. irelay is Airspan s innovative new portfolio of backhaul solutions, based on LTE Relay. LTE Relay is an out of band relay solution, using different frequencies for the backhaul and access links. The backhaul link leverages existing LTE macro networks to provide a backhaul solution for small cell deployments. Traditional backhaul technologies require upfront investment without any guarantee of a return. irelay allows investment to be targeted towards small cells that are already generating revenue. LTE Relay technology leverages existing LTE deployments for immediate access to cost effective backhaul. irelay supports all 3GPP TDD and FDD frequency bands, ensuring compatibility with existing LTE deployments. It preserves Quality of Service through an end-to-end solution which provides one-to-one QCI mapping between the access and backhaul networks. irelay contains a sophisticated multi-band antenna system, which is steerable over 360 degrees to enable connectivity across any band, in any direction. irelay contains algorithms to ensure connectivity with the highest performing enb for maximum capacity, and can also be directed to alternative cells if required by the operator. Most importantly, irelay does not require any change to existing LTE enodebs, and supports 3GPP Release 9 onwards. irelay supports tight or loose integration with the LTE access network. It can be run as a standalone small cell backhaul solution, or can be tightly integrated with the access to provide a single box, single management solution. In addition, Airspan can supply irelay modules for integration with 3rd party access solutions.

4 RAPID ROLLOUT irelay enables the operator to rapidly rollout small cells, without waiting for lengthy deployment of more traditional backhaul technologies such as Fibre or Microwave point-to-point radios. irelay can automatically establish a backhaul link using the existing Macro enb network (Donor enb), providing immediate service to the small cells. SELF ORGANISING / STEERABLE ANTENNAS irelay contains steerable antennas, which automatically align with the best Donor enb, selected using a comprehensive policy based selection algorithm based on a combination of RSSI, MIMO, SNR and other parameters, to maximise backhaul performance. This allows for a simple deployment model with unskilled labor, and eliminates the need for upfront RF design or planning. This technology also enables automatic reselection of the Donor enb as the network changes or evolves. Overall, this provides a significant saving on the OPEX required to rollout and maintain the network. INTEROPERABLE / EASY TO INTEGRATE Interoperability is a key aspect of irelay, which is fully compliant with the 3GPP protocols, acting as a standard UE, and fully interoperable with today s LTE deployments (Rel 9 onwards). Importantly, no changes are required in either the Macro enb or EPC when deploying the irelay solution, and irelay can co-exist with the existing subscriber base, without impacting functionality or performance. IMPROVES NETWORK PERFORMANCE irelay consists of a high gain, directional antenna, which establishes a high performance connection with the Donor enb. This ensures optimal performance, and enables irelay to utilise the higher order modulation typically offered to cell centre users, even if irelay is deployed at the cell edge. The LTE small cell can then help off-load cell-edge users fromf the Macro cell, improving the performance of the macro cell, the enduser, and the overall network. CELL RE-SELECTION irelay provides an ongoing operational advantage to conventional backhaul, by automatically scheduling the re-selection of Donor cells according to rules established by the operator. This process ensures that the performance of the backhaul is maintained above a minimum level, and the backhaul can leverage changes in the macro network; either the deployment of new macro cells (in any band), or the optimisation of the macro cell network. Donor enb re-selection can also be invoked in case of service outage, or during overload conditions. irelay performs continuous measurements of the network which are collected by the Network management system. In addition, irelay can perform periodic 360 degree measurements to provide a comprehensive map of coverage provided by the Macro network. This information, coupled with the load information of the macro cells can be used to perform network initiated alignment changes to optimise the overall network.

5 PLUG & PLAY irelay is a complete Plug and Play solution, only requiring power to enable backhaul to be established. Unlike conventional backhaul solutions, irelay does not require equipment to be installed at each end of the radio link. Instead, irelay can leverage the existing Macro network infrastructure, further increasing the speed at which backhaul links can be deployed. irelay supports auto-discovery of the Donor enb & EMS equipment, as well as auto-configuration and provisioning. irelay can also adapt to the capability of the Macro network, switching frequency bands as appropriate (to utilise unloaded bands), and also enabling Carrier Aggregation for additional performance whenever possible. ADVANCED PERFORMANCE irelay is based on the latest UE chipsets providing enhanced performance in both the uplink and downlink, with up to 4 Receivers, 2 Transmitters, Uplink MIMO and Uplink Carrier aggregation. This ensures that irelay can provide significantly improved performance and spectral efficiency compared to the current UE on the network, thereby further improving the overall Relay Gain of the network. Whilst improved irelay performance can enhance the backhaul capacity of the system, it can also effectively increase the operational range, enabling installation of small cells in today s coverage holes. ALL-IN-ONE SOLUTION irelay is available as an integrated solution with Airspan s enb, to provide all classes of enb with self backhauling capability. All-in-one solutions benefit from integrated electronics, common GPS, and a single power supply. MULTI-BAND DONOR ENB SELECTION irelay is a mute-band solution, supporting a wide range of TDD and FDD frequency bands. irelay Plug & Play solution can scan across all available bands to select the best Donor enb, and can support carrier aggregation across up to 3 bands for maximum performance, and to fully utilise the available Macro network. irelay also supports ongoing optimisation of the backhaul network, enabling migration to new frequency bands as the network expands to provide additional capacity - for example, leveraging Band 38 / 40 / 41 as the network expands. END-TO-END QOS irelay provides true end-to-end Quality of Service, ensuring that services such as VoLTE benefit from guaranteed data rates and reduced latency on both the LTE air interface (from the small cell), and the irelay backhaul (to the Donor enb). irelay supports Co- Operative QOS to ensure that the service requirements are always synchronised between the access and backhaul interfaces, including support to ensure that bandwidth is dynamically sized to fit the traffic load. ELIMINATES SITE VISITS TO CHANGE ANTENNA DIRECTIONS Network evolution means best Macro changes over time Automatic alignment with best Macro enb during initial installation Automatic re-alignment of relay antenna to establish link to another Macro enb

6 FIRST STEP IN THE BACKHAUL LIFECYCLE irelay is a rapidly deployable small cell backhaul solution, which enables the immediate deployment of small cells anywhere in the network. It eliminates the need to deploy equipment at both end of the backhaul link (as per traditional microwave solutions) by leveraging the existing LTE network, and immediately halving the cost of deployment. irelay can be deployed as an integral part of the access network, or as a standalone small cell backhaul solution. The advantage of deploying such a low cost, rapidly deployable solution, is that small cells can be targeted to provide coverage / capacity hotspots without a comprehensive business justification. The low cost approach means that higher capacity backhaul solutions (e.g. Fibre) need only be provided to small cells which have a proven high traffic demand, and therefore generate sufficient revenue to justify the investment. The backhaul lifecycle enables irelay solution to support initial deployment and low usage cells, with other backhaul technologies being used for longer term, higher capacity cells.

7 SPECIFICATION SUMMARY irelay 460 irelay 464 3GPP Specs: 3GPP Rel 9/10/11 3GPP Rel 10/11 Channel Bandwidth: 3/5/10/15/20MHz 3/5/10/15/20MHz Spectrum: Most 3GPP Bands Most 3GPP Bands Duplexing: FDD and TDD FDD and TDD UE Category: 6 5/6/7 Downlink MIMO: 2x2 MIMO 2x2 MIMO, 4x2 MIMO, 4x4 MIMO Uplink MIMO: SISO only 1x2 MU-MIMO, 2x2 MIMO Modulation: DL: QPSK / 16QAM / 64 QAM DL: QPSK / 16QAM / 64 QAM UL: QPSK / 16QAM UL: QPSK / 16QAM / 64 QAM Transmission Modes: TM 3/4/9 TM 1/2/3/4/5/6/7/8/9/10 Transmit Power: 23dBm 23dBm DL Carrier Aggregation: 2CA 3CA UL Carrier Aggregation: N/A 2CA Peak Thru-put: DL = 220 Mbit/s DL = 300 Mbit/s PHYSICAL SPECIFICATIONS Antenna: GPS: Dimensions: Weight: Power Consumption: Operating Temp: IP Rating: Integrated, Steerable XPOL Integrated 200mm x 330mm (Diameter, Height) 4kg 20W -40 C to +50 C IP66

8 Evolving 4G Networks by Densification to 5G For more information about Airspan, its products and solutions, please visit our web site: or Airspan has sales offices in the following countries Australia China India Indonesia Israel Japan Philippines Russia Sri Lanka United Kingdom United States About Airspan With over 1000 customers in over 100 countries and as a top vendor for carrier-class LTE RAN access and backhaul solutions, Airspan is recognized as a leader and pioneer in LTE and OFDMA technologies. Providing an expansive product portfolio, Airspan offers customers the widest selection of LTE products in the industry with an unsurpassed level of technology to benefit their business case. Airspan has solutions spanning the 700 MHz to 6 GHz frequency bands. Contact Airspan today! Headquarters 777 Yamato Road, Boca Raton, Florida USA irelay 04/16