Improving network capacity.
Qualcomm Research has been working on enhancing LTE network capacity and the broadband user experience in a ubiquitous and cost-effective manner.
Since radio link performance is approaching theoretical limits, the next performance and capacity leap will come from an evolution of network topology by using a mix of macro cells and small cells in a co-channel deployment. Qualcomm Research has been spearheading the introduction of heterogeneous network (HetNet) techniques in LTE Advanced, including enhanced inter-cell interference coordination (eICIC) in the network and advanced terminal receivers with interference cancellation (IC). To further facilitate HetNet densification, opportunistic small cell and Relays using Non-Line-Of-Sight (NLOS) wireless backhaul are also introduced to ease HetNets deployment and operation constraints. Using these techniques, LTE Advanced HetNets offer a scalable path to achieve tremendous growth in spectrum efficiency per unit area.
Along with our partners, we have proposed a new licensing model, Authorized Shared Access (ASA), to allow operators to access underutilized spectrum on a shared basis, without interfering with incumbent spectrum holders. ASA can potentially unlock hundreds of MHz of high-quality spectrum suitable for LTE small cell deployment.
LTE Advanced Techniques
Advanced interference management techniques enable significant gains in LTE HetNets capacity.
Authorized Shared Access
A new license model to access underutilized, high quality spectrum.
Carrier aggregation allows operators to leverage spectrum assets across multiple carriers and multiple bands.
Opportunistic Small Cells
Opportunistic small cells reduce unnecessary interference to neighboring cells and improve energy efficiency.
Relays use NLOS wireless backhaul to ease backhaul constraint for small cell deployment.
Data IC Receiver
Next generation UE receivers cancel the data and control channel interference from neighboring cells to further improve LTE performance.
Tight integration of small cells and Wi-Fi APs enables management of Wi-Fi access via LTE/UMTS.
LTE Multiflow is an extension of LTE Carrier Aggregation across non co-located nodes.