Resources & Intellectual Property

Please download PlusN’s Smart Carrier Aggregator (SCA) White Paper.

Intellectual Property — only domestic, issued patents are listed below on (8 patents with 194 claims), but the company has foreign applications including two that have been approved and will be granted in the near future:

  • “System and Method for Controlling Combined Radio Signals” is a set of 4 issued patents with 103 combined claims (6/26/09 priority): A method for controlling a combined waveform, representing a combination of at least two signals having orthogonal frequency multiplexed signal components, comprising: receiving information defining the at least two signals; transforming the information defining each signal to a representation having orthogonal frequency multiplexed signal components, such that at least one signal has at least two alternate representations of the same information, and combining the transformed information using the at least two alternate representations, in at least two different ways, to define respectively different combinations; analyzing the respectively different combinations with respect to at least one criterion; and outputting a respective combined waveform or information defining the waveform, representing a selected combination of the transformed information from each of the at least two signals selected based on the analysis.
  • “System and Method for Radio Frequency Carrier Aggregation” is a set of 2 patents with 52 combined claims (11/26/13 priority): A system and method for aggregation of a plurality of wireless communication signals in a common radio frequency transmitter. A multiple subchannel multiplexed (MSM) signal within a frequency band, and having a communication protocol with pilot signals estimating a channel state and efficient signal demodulation with a mobile receiver is combined with another signal. An automated digital processor at the transmitter modifies the MSM to meet at least one fitness criterion of the combined signal, selected from among alternatives that will maintain good reception of all transmitted signals within system protocols, without requiring transmitting additional side information specifying the modification. The range of alternates include modifications that disrupt the pilot signals. The fitness criterion may include minimizing the peak-to-average power ratio of the combination, and a signal modification may comprise a cyclic permutation of a portion of the time-domain representation of a signal, while maintaining compatibility with prior pilot signals.
  • “System and Method for Communicating using Bandwidth On Demand” is a set of 2 patents with 39 combined claims (11/4/11 priority): A system and method for dynamically changing the quality of service (QoS) for a subscriber of a cellular radio system. Bandwidth-on-Demand (BoD) enables the subscriber to dynamically switch to higher bandwidth and to enable a higher throughput. This may be for a limited time or amount of data, for example. The initiation may be by the subscriber, carrier, sponsor, or automatically by an application. The QoS increase may be dynamically priced in a kind of auction. The wireless device may contact the policy servers of a multiple network operator (MNO), which in turn contacts the Authentication, Authorization and Accounting (AAA) server in the MNO’s core network. The policy server contacts the scheduler on the serving basestation which then determines whether to allocate more resources (i.e. bandwidth in the form of subcarriers, resource blocks, resource elements, timeslots) to the subscriber. The initiation may start a timer or data counter.