CBRS Technology Overview
Aug 11, 2020
In this 37 minute video, we discuss the technology of CBRS and how it relates to the unlicensed Wi-Fi we know as 802.11 or Wi-Fi 6.
We've seen a lot of evolution in the Wi-Fi space, as things have migrated and technology has improved, and we're now seeing Wi-Fi 6 certification come onto the radar. As we are reaching peak capacity with older technology, we are reaching bottlenecks with uplink throughput. So we're seeing the same sort of improvements within the CBRS space. Keep in mind that CBRS is not a protocol or a technology implementation. It is similar to the spectrum bands that we know of in Wi-Fi. So think of LTE and 5G as akin to the 2.4 or 5 GHz spectrum with CBRS. We see differences in spectral efficiency and an almost a service level agreement (SLA) guarantee of transmission and reception between an AP and an end user CBRS device.
CBRS has some obvious benefits over even Wi-Fi 6. CBRS is non-blocking meaning that there's no contention for the spectrum. The “lightly licensed” model ensures that no interference is going to take place. The queuing and scheduling functions are controlled by the CBRS network devices. So there's dedicated spectrum and an OFDMA based scheduler. OFDMA stands for orthogonal frequency division, multiple access. CBRS has better coverage, indoors and outdoors. The underlying technology supports high-speed roaming of up to 300 kilometers per hour. There are global standards for CBRS and certification enabled interoperability between suppliers, which we don't see in the Wi-Fi space. The ability to reuse frequencies provide spectral efficiency and therefore more capacity.
CBRS security uses SIM based credentials and SIM stands for a subscriber identity module. You may be familiar with SIM cards because you likely have one in your cell phone. It uses IP sec routing, which stands for IP security with local breakout for privacy. Security is built in at the hardware level with CBRS.
Within CBRS, LTE and 5G technologies have been adopted in the spectrum. LTE and 5G can be thought about as new freeway lanes that can increase capacity and reduce interference. The way the channels are assigned within CBRS, a “lightly licensed” model is used. There is coordinated use of spectrum frequency and coordination is managed by Spectrum Access Service or SAS. The Spectrum Access Service is a cloud based, database interference management architecture. The current SAS members are Google, Comscope, Federated Wireless Amdocs, and Sony. This group administers the assignment of spectrum channels and dynamically manages that spectrum through an Environmental Sensing Capability network; to avoid interfering with Navy incumbent radar systems.
The spectrum is at maximum 150 MHz spectrum with 10, 20 or 40 MHz wide channels. The throughput that is capable is up to 200 megabits download and 50 megabits upload with radio power levels up to 30 dBm or 47 dBm EIRP. EIRP stands for Effective Isotropic Radiated Power, which is basically the power that comes out of the radio antenna element.
The timeline of progress for CBRS begins in 2010, where the NTIA Fast Track Report identified the 50 MHz broadband spectrum. Most recently the FCC approved full commercial deployment in January of 2020, and the auction for the spectrum took place the fourth week of July, 2020.
The CBRS tiers of shared spectrum are defined by Tier-1, Tier-2 and Tier-3. We see the Incumbents are listed out as us Navy Radar, Fixed Satellite Service and Wireless Service Providers. Tier-1 incumbents involves Naval Ship borne radar. There are 17 Naval ships, 3 ground-based radar installations. Fixed Satellite Service organizations are out there that have received operating capabilities in this band. The Fixed Satellite Services are in very specific locations throughout the continental United States.
In Tier-2, we have Priority Access Licenses. This section of spectrum was a big focus by the FCC to enable 5g deployment across the United States. Spectrum access in Tier-2 is to the lower 100 MHz only, and not all of the spectrum can be used. The FCC auction for this spectrum took place July 24th, 2020 on a County by County basis. In any given County, only 70 MHz could be auctioned off at any one time
Tier-3 General Authorized Access of the 150 MHz available for the General Authorized Access , it is guaranteed to have about 80 MHz for use within the GAA. If your device is certified by the FCC and you register with a Spectrum Access System, a SAS system, then you can use the spectrum. We will see most enterprise deployments taking place within the GAA tier three section within the bidding structure of the Priority Access Licenses. We will see the typical bidders being Verizon, ATT or T-Mobile. Prices for spectrum will be higher in urban areas versus spectrum in rural areas. PAL holders will still need to register and integrate with the Spectrum Access System.
So how much is 150 megahertz? It doesn't sound like a whole lot when you come from a Wi-Fi background, but 150 megahertz in the mid band spectrum is actually quite a lot. This range has good RF, propagation and attenuation characteristics. And this is more mid band spectrum than any of the licensed carriers have today.
Digging a little bit deeper into the CBRS Tier-1 Incumbents, this is the U S Government ship born in ground radar. This map shows the Dynamic Protection Areas where Environmental Sensing Capability protection is activated in around 60 seconds through a ground based sensor system. The known sites are 17 ships at three different sites in Norfolk, San Diego and Seattle. There are 3 ground-based radar installations. All of the geographic locations of these potential sources of transmissions within the CBRS spectrum are known. There are a set of Environmental Sensing Capability sensors that are deployed that will detect Federal frequency use in the 3550 to 3650 Mhz band in these Dynamic Protection Areas. So even if you are a GAA spectrum holder and you're near one of these 17 sites or 3 ground locations, there are still less than 5 Mhz of spectrum that will be used by any aircraft carrier or ground radar system at any given time. This leaves plenty of opportunity to use the CBRS spectrum.
CBRS Tier-2 Priority Access Licenses cellular providers lobbied to get the regions to be auctioned off to be as large as possible. They wanted the areas to be as large as Cellular Market Areas (CMAs), which aligns more with County sizes than Census Region boundaries. The winners get a certain amount of spectrum, but it isn't guaranteed to be contiguous. A bidder may get awarded 40 MHz of spectrum, but it might not be contiguous and another Bidder could win 30 MHz of spectrum, and it could potentially be contiguous. The licenses are awarded with a 10 year term and the winner of the bid must meet performance requirements by the end of the term. Priority Access Licenses are not for specific frequencies, the frequencies are still allocated by the Spectrum Access System upon registration or grant of the spectrum.
The CBRS Tier-3 General Authorized Access is licensed by rule, there is no auction process and no cost involved. Devices must be FCC certified and integrate within the Spectrum Access System. If winners of a Tier-2 PAL spectrum have no radios deployed, GAA systems can use that spectrum to operate. Once the PAL channels go live, this will change on a case by case basis or a County by County basis.
To give you some idea of what the channels look like within CBRS. Let's take a look at band 48. This is often referred to as the private LTE. It is the frequency band of 3.5 GHZ operating in the LTE spectrum in the United States. CBRS supports channel bandwidths of 10, 15, and 20. EARFCN stands for E-Utra Absolute Radio Frequency Channel Number and is the term used to refer to the CBRS Channel. The channel could be referred to by its frequency in MHz or its EARFCN number. When we divide the Band 48 spectrum into 10 MHz wide channels, we get 15 channels to use. If we divide the spectrum into 20 MHz wide channels, we get 7 channels to choose from.
Let's look at CBRS terminology in relation to Wi-Fi terminology. From the top level, the CBRS system is described as Evolved Packet System or called EPS. You may also see it referred to as System Architecture Evolution or SAE. The Evolved Packet Core (EPC) can be thought of loosely as analogous to a wireless controller. This could also be called an All IP packet network (AIPN). There are multiple components contained within an EPC or an AIPN and this will be the subject of a separate article.
The Radio Access Network (RAN) is the physical spectrum itself, where we see terms like LTE (Long Term Evolution). LTE refers to the 4G cellular air interface, similar to the 802.11 radio interface, whether it be a 2.4 or 5 GHz radio interface on a physical Wi-Fi access point. The previous 3G air interface is the Universal Mobile Telecommunications Systems (UMTS). The Evolved Node B (eNodeB) is a base station or analogous to a Wi-Fi Access Point. The terms radio, carrier and sector can all be seen used interchangeably. The term UE refers to User Equipment which is the end user client device.
Compare and contrast the technology of Wi-Fi and what we know to be true in CBRS
In Wi-Fi spectrum, we know it to be an unlicensed spectrum, totaling 663.5 MHz of spectrum. The typical channel widths that we see are anywhere between 20 and 160 MHz. There is a technology called Dynamic Frequency Selection that is enabled to avoid interfering with Radar Systems. There are certain channels in outdoor spaces that are subject to Dynamic Frequency Selection, meaning that they need to be able to sense Radar transmissions and tell the AP to stop transmitting to clients and pick a channel that's not being affected by radar systems.
In CBRS spectrum, it's a shared tiered spectrum model, where there is 150 MHz total spectrum available. The carriers are channels, 10 to 20 MHz wide, plus there are 5 Carrier Aggregation Channels. Carrier Aggregation essentially combines 5 separate channels together, for increased capacity.
Similar to Dynamic Frequency Selection where Wi-Fi Access Points need to be listening for Radar transmissions, the Environmental Sensing Capability network allows for avoiding interference with Navy Incumbent Radar systems through a network of sensors deployed that are detecting Federal frequency use and the 3550 to 3650 MHz band in known Dynamic Protection Areas (DPA).
CBRS radio power output has a 30 dBm EIRP limit indoors and outdoors. The EIRP limit is the transmit power output allowed from the antenna element in the access point. Sensitivity for access points is typically -90 dBm and coverage is anywhere from 5 to 10,000 square feet per Wi-Fi Access Point. Wi-Fi Technology refers to Signal to Noise Ratio, channel noise floors, and the SNR metric doesn't include Wi-Fi Co-Channel Interference (CCI). There is a great variance in how different vendors’ chip sets measure SNRs and correlate SNR to MCS data rates in relation to performance.
In CBRS, the transmission power limits are 30 dBm EIRP indoor and 47 DBM EIRP outdoor. A CBRS radio Receive sensitivity is -120 dBm, and the typical coverage area for a CBRS radio is 20 to 30,000 square feet. The equivalent terminology in CBRS to Wi-Fi SNR is called SINR (Signal to Interference plus Noise). SINR is a measure of the Resource Block noise floor. The SINR metric does include InterCell Interference Coordination (ICIC). CBRS has well-defined SINR to Data Rate relationships and performance values whereas in Wi-Fi, the relationships between signal and performance vary greatly between hardware vendors.
Diving into protocols in Wi-Fi, we have what is called a distributed contention model: Carrier Sense, Multiple Access with Collision Detection (CSMA-CD). Distributed contention is how the systems operate, meaning if there has been a collision detected which has taken place within the RF spectrum, all devices stop transmitting until they get the Clear To Send or that they can tell that the spectrum is free to use. Sometimes we have Hidden Node issues where the client device cannot transmit loud enough for an access point to hear it. When situations like that arise, Ready To Send/Clear To Send packets are used and using those packets slows down the overall network transmission speeds.
The technology that we use to transmit now in Wi-Fi 6 is called OFDMA. It is frame based and only operates within the Frequency domain, not the Time domain. Clients are assigned Resource Units for a duration of frames and padding is required in order to coordinate this transmission mechanism.
In CBRS, the communication is non-blocking, it is centrally coordinated. Contention for the spectrum is not a concern within CBRS, all communication is scheduled, downlink and uplink. All transmissions are scheduled, which prevents hidden node issues. Within CBRS, OFDMA uses both Frequency and Time domains to schedule transmissions. Clients are assigned specific tones within the spectrum. The specific tone could be thought of as a Resource Unit for the client to transmit on, but no padding is required because everything is scheduled, assigned and organized within CBRS. No decisions are left up to the client.
Quality of service within WI-Fi and CBRS
Wi-Fi frequency reuse requires complete spatial separation. You cannot have an access point on channel 1 operating within the same RF space as another access point on channel 1. If you do have this situation, you are going to have a higher noise floor and more co-channel interference. If a transmission preamble is detected on the RF spectrum, client devices will defer communicating, access points will go into radio blocking mode until the air is clear for another device to transmit in the RF spectrum.
All Access Points must contend to acquire a transmit opportunity since it is shared bandwidth between access points and client devices, all of this traffic (transmit and receive) must be coordinated. There is statistical prioritization through 4 Wi-Fi Multimedia (WMM) queues. This is where we get Quality of Service (QoS) capabilities within Wi-Fi.
With CBRS there is universal frequency reuse, no spatial separation is needed because the entire system is organized to be non-interfering. The Intercell Interference Coordination (ICIC) is non-blocking, all OFDMA transmissions are scheduled, there is no contention for the wireless space. There are also guaranteed Service Level Agreements (SLAs) through 9 Evolved Packet Systems (EPS) bearers, creating the built in QoS capability within CBRS.
Speaking to mobility and roaming within Wi-Fi — all roaming within Wi-Fi networks is controlled by the client device. Within Wi-Fi roaming coordination is defined but not well supported. 802.11 k/r/v are all standards, but they're not well supported from one infrastructure to another. Roaming is dependent upon proprietary client implementations and algorithms in each client card. Each client chip set will have a different algorithm, and when clients Rome, there's a limited client roaming speed. When the client decides to roam, it may have hung on to an access point until it rate limited down to the slowest data rate that that access point supports, before it will make the decision to look for a better access point to connect to.
Within CBRS, the handover (roaming) is controlled by the infrastructure. It is not left up to the client device. The handover coordination is standardized between infrastructure devices and client devices. Mobility management (roaming) is based on standardized thresholds within RSRP (Reference Signals, Received Power), SINR (Signal Interference Plus Noise) and RSRQ (Referenced Signal Received Quality). These are key measures of signal, level and quality for modern LTE networks. It is entirely possible to have high-speed mobility handover up to speeds of 500 to 700 kilometers per hour in a CBRS network.
When designing a wireless network, the design target typically is -65 dBm RSSI (Received Signal Strength Indicator), approximately 3000 square feet per access point for capacity coverage or voice coverage and approximately 10,000 square foot coverage per access point for data coverage. Designing for Wi-Fi cellular edge performance requires decoding the basic rate at 6 Mbps. This of course can be adjusted by enabling or disabling lower data rates, but your standard cell edge is going to have a Basic rate of 6 Mbps. Channel planning can require careful attention in order to avoid co-channel interference, but most wireless controllers, whether they be physical controllers or virtual controllers or controllerless solutions will have a built in channel planning algorithms so that the system can best decide what channels the AP should be on.
Within CBRS. When you're designing for a CBRS network, the design target is -105 RSRP (Reference Signals Received Power). We typically see 10,000 square foot coverage per CBRS radio for voice grade service, and 1 CBRS radio can cover 30,000 square feet just for data coverage. The cell edge performance of a CBRS radio will allow clients to remain connected at very low kbps speeds. Within CBRS, channel planning is less strict because ICIC (Intercell Interference Coordination) is non-blocking.
In Wi-Fi, if an access point has had its client density capped, that access point maintains active associations for every client, even if the clients are sleeping. Latency varies from client to client and contention is distributed across the RF spectrum. As density increases, management and control overhead increases. Channel utilization is a value that can be used to monitor the density of a wireless infrastructure.
High client density is possible within CBRS, the UE (User Equipment) idle mode can be offloaded to the EPC core until the UE is scheduled to transmit, which means the CBRS access point doesn't need to maintain an active association for idling clients. Within CBRS, latency is consistent because transmissions are scheduled, even under high density loads management and control overhead is constant and does not change. RSRQ (Reference Signal Received Quality) is what is used to monitor density of clients within CBRS.
When designing for Best Practices within a wireless network, our minimum coverage is typically designed to be a received signal strength (RSSI) of -65 dBm. For high density coverage areas, we design for an RSSI cell edge of -55 to -50 dBm. Our Signal to Noise Ratio (SNR) is commonly targeted at 25 dB with a minimal amount of co-channel interference (CCI). We attempt to match the power output power and the client power within 10 dBm of EIRP.
In Wi-Fi networks, we don't aim to use wider channels, we aim to set them at 20 MHz and let the infrastructure determine when it's possible to make the channels wider. With Wi-Fi channel planning, we use non-overlapping channels and in the 2.4 GHz spectrum (1, 6, and 11) to support mobility (roaming). We overlap the signal strength from several access points to support client roaming. To calibrate the predictive modeling of wireless access points in a given RF space, we use an AP on a stick survey.
With CBRS, we design for minimum coverage with an RSRP (Reference Signal Receive Power) of -105dBm, for a high density coverage we aim for an RSRP of -95 to -90 dBm for a noise floor. We designed to support a SINR (Signal to Interference plus Noise Ratio) value of 10 dBm for output power. Within CBRS, the LTE Base station (eNodeB/radio) controls the output power of the UE (User Equipment) device. We designed for an uplink downlink power imbalance of around 10dB between the AP and the client device for channel widths. We definitely use wider channels to support more throughput. When planning for channels, we use non-overlapping EARFCN (E-Utra Absolute Radio Frequency Channel Number) channels. The channel numbers will look something like 55740, 55940, 56140.
If we are designing for 20 MHz wide channels to support client mobility, we design to support channel overlap for handover (roaming). To do a predictive model calibration in a CBRS design, it's called a CW test (Client Walk Test).
CBRS use cases
CBRS can leverage Enterprise PrivateLTE networks for mission-critical applications to support everything from increased security, isolation from public networks, higher reliability, enterprise owned analytics, ease of management or extending coverage.
Isolating from public networks is possible because this is a clean 3.5 GHz LTE band. The authentication is built in at the physical layer through SIM based authentication. We have high reliability because LTE has built in transmit and receive scheduling. Nothing is left up to the decision of the client device. Advanced control of the data pool as possible because it is an Enterprise PrivateLTE network. Management can be simplified because it could be Enterprise managed or Service Provider managed. The CBRS coverage can be extended because you could potentially cover up to 20,000 square feet per access point. We see use cases in stadiums, retail, healthcare, hospitality, industrial and Internet of Things.
Early PrivateLTE use cases
In the industrial space, we can see ruggedized tablets, push to talk walkie talkies, sensors in remote controls, robots, Automated Guided Vehicles (AGVs), Autonomous Mobile Robots (AMRs) and in venues and in the enterprise, we can see Point of Sale solutions, critical voice and data applications, secure collaboration, even security cameras. There is a broad demand for private LTE networks, from everything from transportation, venues, logistics, Higher Ed, retail, manufacturing, industrial, and energy and municipalities. Transportation can leverage IOT sensors, video surveillance and high-speed mobility. Venues can enable mobile ticketing, Point of Sales, digital signage, and kiosks. Logistics can use ruggedized tablets or Computer Aided Vision. In Higher Ed, we could see vehicle connectivity, video surveillance, outdoor coverage, or smart buildings. Within retail, we see lots of robotics sensors, video surveillance and public LTE offload. In manufacturing, we see outdoor connectivity, Autonomous Guided Vehicles (AGVs) and other robotics. In industrial and energy, we see IoT sensors and more ruggedized tablets. Municipalities can leverage PrivateLTE to support public safety, vehicular connectivity and critical communications. CBRS is wireless with Service Level Agreement (SLA) like time slices of coordinated transmit and receive communications. There are guaranteed metrics for latency, throughput, jitter and packet error rate. There is greater performance at longer ranges. We see higher receive and sensitivity levels for large area coverage. We can keep mission critical staff applications from the visitor Wi-Fi traffic, thereby keeping private communications private. Seamless mobility (roaming) is possible because the infrastructure controls the handover of mobile devices as well as the operating power levels of the UE (User Equipment) across radios. CBRS is also ready for IOT coverage because we have strong rate range, characteristics and cell edge connectivity.
CBRS ready devices are already in the marketplace. Current CBRS ready devices are the iPhone 11, the iPad pro 11, the Samsung S 10, Google pixel 3 and 4, the LG G8, Motorola two way radios, Cisco ISR C 1101 -4PLTEP, the Cisco integrated router 1101, devices from MultiTech, Amit, Serrcom, Foxconn and Zebra.
There are two categories of Citizens Broadband Radio Service devices. Category A does not require a Certified Professional Installer (CPI). Category A devices can be installed indoors or outdoors, less than 6 meters high. The power output limit of a Category A device would be defined as “low power” because the power output limit is 30 dBm EIRP, which is 1 watt. A CBRS B category device requires a CPI to install it. It is an outdoor only device, and the output could be defined as a “high power” because it is limited to 47 dBM EIRP, which is 50 Watts transmit power. GPS location information is required by the CBRS Base Stations to send to the SAS (Spectrum Access System) for channel allocation. The Geo Location accuracy that is required to install these devices is +/- 50 meters horizontal and +/- 3 meters in elevation.
The steps to operation of a CBRS Base Station
Step one, register the radio in the network with a Spectrum Access System (SAS).
Step two, the CBRS radio will check the spectrum. It will use the configured GSP location information to inquire with the Spectrum Access System for spectrum allocation and incumbent usage nearby
Step three, channel request. The CBRS radio will request use of the specific list of desired frequency channels.
Step four is the channel assignment. Ongoing channel assignments are managed by the Spectrum Access System (SAS),
CBRS planning, and deployment. For wireless coverage and capacity planning, we have to identify the spectrum availability and the number of indoor or outdoor radios. We update those estimates based upon device density and application requirements. We then select our device and begin to provision our SIMs. We map business use cases to CBRS capable devices and create a process for SIM management, for devices and provisioning. Then we integrate this into the Enterprise network.
We finalize the location and placement of indoor and outdoor radios and plan for integration with the LAN/WAN network and security services.
Some differences with regard to CBRS coverage and capacity planning
There are some important parameters that are a little bit different. We need facility geo-location because the access points, when they register with the SAS, need GPS specific information on where they're deployed in order to make sure that they don’t interfere with Tier-1 incumbents. The CBRS radio will check for spectrum availability. We need to define a facility type a coverage area. We need to know how many devices, what applications we're going to use, what are the characteristics of the applications and what type of capacity is required? How many client devices are going to leverage this CBRS infrastructure? So eNodeB or CBRS radios of requirements will scale with available spectrum.
Capacity planning requirements are modeled based upon how much spectrum is currently available. Any LTE Inter-Cell Interference Coordination (ICIC) modeling is based upon required frequency reuse. So how much spectrum should I plan for? Best case scenarios is 150 MHz, 110 MHz is more realistic for most locations, 80 MHz is conservative if all Priority Access Licenses (PALs) have been deployed and 70 MHz is more conservative, if all Priority Access Licenses have been deployed and are in a Dynamic Protection Areas.
This chart gives us a good idea of how many access points we would need based upon a best case scenario of 150 MHz spectrum available, a more realistic of 110 MHz spectrum available shows we need five more access points. We see we can go from 150 CBRS radios in the best case scenario to 155. When we lose a little bit of the spectrum, if all Priority Access Licenses are in use our required number of CBRS radios goes up to 164. In order to get the channel separation in a worst case scenario, if we have 70 MHz of spectrum available, we need a handful more access points. We need to go from 164 to 170.
When surveying for CBRS, there are dedicated tools designed to survey those spaces within the spectrum. There are solutions from IB wave and there are dedicated physical scanners that can be used to detect CBRS networks.
There are more than 20 models of tablets and smartphones that can support single physical SIMs or physical SIMs and eSIMs. There are more than 10 models of gateways routers and edge computers that can support single or dual physical SIMs. And these devices are either capable of both enterprise and or public cellular network connectivity.
SIMs are provisioned to contain all the required information to connect to the cellular network. The SIM contains files for various functions. There's Asymmetric Cryptography Keys, network requirements are: a Home PLMN (Public Land Mobile Network), which is your primary mobile operator network that you would connect to. Your Equivalent PLMN list, which is used when traveling (typically out of the country) and your Roaming PLMN list, which is only used when you're out of the Home PLMN range, your device IMSI (International Mobile Subscriber Identity), your phonebook (including service dialing number for the operator) and any kind of SMS (Short Message Service) parameters. This information is all programmed into the physical SIM or virtual SIM in a CBRS UE (User Equipment) device.
Form factors that we have to choose from are physical, removable SIMS (that have various form factors) and multiple SIMs could be supported at once. eSims are embedded SIMs and only one SIM profile can be loaded on an eSIM, but they typically support multiple authentication types, including EAP. The eSIM format is standardized, but provisioning methods are most often proprietary. AT this time, eSIMSs are not fully supported in Enterprise CBRS hardware. Several CBRS hardware vendors have eSIM support on their hardware roadmaps. Integrated SIMs are systems on chips with a processor and their size is much smaller and more in line with being used for an IOT deployment.
When does it make sense to have dual SIMs? Well, if you're traveling, International travelers can avoid roaming charges by purchasing and using a local country SIM. You can have multiple subscriptions to combine two separate phone services into a single device to merge a business and a personal line through multiple subscriptions on one physical device, or you could have a device on a public carrier network and handoff to PrivateLTE. You could have constant coverage and achieve greater geographic cell coverage with SIMs from different cell carriers,
WWT supports mobility solutions
WWT has a depth and breadth of knowledge in the wireless space. Not only do we have significant relationships with top OEMs in the space, but we can demonstrate our capabilities in our Advanced Technology Center through proof of concepts or Lab as a Service. We can bring together multiple vendor technology to demonstrate true solutions, in campus and branch deployments. WWT can successfully perform any and all manner of wireless site surveys; from software based predictive surveys to onsite RF testing. Our Big Data team can enhance the business relevance of location aware Wi-Fi, and our Application Development team can create a front-end user interface to your location, aware Wi-Fi or CBRS network, ready for any business use case imaginable.
We know that deploying wireless technology can be complex. WWT offers a number of workshops and offers customized lab, or proof of concept environments in our Advanced Technology Center. We can support onsite wireless services for site surveys, workshops, or briefings. Our Integrated Technology Center can help speed staging and deployment or our Managed Services offerings could enable you to offload the ongoing operations of your wireless infrastructure to us.