How iBwave is Connecting the Corporate HQ

Read this Business Campus DAS Case Study by iBwave for a better understanding of the ground realities affecting such challenging scenarios and how iBwave’s market proven solutions can help telecom operators design better networks.

Today’s office buildings are very diverse venues, varying in layout, size, and number of floors. Often these buildings are grouped together in a business campus.

A typical business campus has a cluster of multi-level officebuildings located off public streets. Very often such a campus is occupied by a single tenant that uses the space as its corporate headquarters.

Business campuses that have multiple tenants are less common. In a multi-tenant campus, the in-building networkis most often built piecewise for each tenant or building instead of all at once across the whole campus. This is nota preferred way to deploy a network because it is time-consuming and therefore more costly.


In our specific case study, the business campus consists of two buildings. The larger building has an 80 meter by 20meter rectangular cross section and ten floors. The smaller building has a 60 meter by 17 meter rectangular crosssection and six floors. Each floor is 3 meters high. The buildings are 30 meters apart and directly across from eachother.

Both buildings have a single tenant who requires good voice and data coverage throughout. As the company has adopted a “bring your own device to work” policy, the employees use their own smart phones forbusiness, for which they are reimbursed monthly, by the company. In order to provide good coverage for everybody,all major wireless service providers (WSP) must be included in the network.

The Solution

As neutral host small cells are not commercially viable yet, the best solution is a Distributed Antenna System (DAS).

In the shorter building, the DAS is fed by one trunked radio sector, one UMTS sector, and two LTE sectors. The tallerbuilding has one trunked radio sector, two UMTS sectors, and three LTE sectors. Public safety (PS) has additional technological, regulatory and jurisdictional requirements. PS and WSPs may be deployed in a converged DAS, or two separate DAS may be built, one for PS and one for all WSPs.

The decision whether to deploy the converged or the discrete DAS architecture should be based on EIRP, spectrumbands and technologies that are being deployed.

Link to the full Case Study