-dB improvement in selectivity would translate into a doubling of the downlink data rate in an interference-limited environment. Some RX RF performance improvements can deliver a double benefit. Achieving bet- ter/lower phase noise in a front-end PLL and LNA improves sensitivity, but also improves the accuracy with which antenna adaptive matching can be realised. The impact of a link budget gain in a mobile broadband network is similar to but different from the impact of a link budget gain in a legacy voice and text network. Improving the link budget in a voice and text network improves capacity and coverage, depending on whether any particular link at any particular time is noise or interference limited. The user experiences better voice quality (though the operator can trade this against capacity gain by using a lower rate codec), improved geographic coverage and in building penetration better, fewer blocked calls, fewer dropped calls and a longer duty cycle (minutes of use between battery recharge). Improving the link budget in a mobile broadband network increases coverage and capacity and average per user data throughout rates and improves end-to-end latency. This translates into reduced application latency for the user, lower blocked session rates, lower dropped session rates and a longer data duty cycle (megabytes of use between battery recharge). Assuming a mobile broadband network will also be supporting voice and assuming voice traffic is on an IP virtual circuit then the link budget will need to be sufficient to ensure users have the same voice quality, coverage and talk time that they have on present devices. The link budget can be improved by increasing network density, improving base-station efficiency up to an interference threshold, or by improving user-equipment efficiency or a mix of all three. Increasing network density has a capital and operational cost implication in terms of site acquisition, site rental, site energy costs and backhaul. The increased burstiness of offered traffic in a mobile 