Capacity enhancement schemes for forward and reverse links of distributed cellular base stations
AssigneesAirvana, Inc., Solid Technologies, Inc.
InventorsSae-Young Chung, M. Vedat Eyuboglu, Yong Hoon Kang, Dae-Young Kim, Jin Hwa Ku, Seung Hee Lee, Michael D. Pollman
Life of this patent
Estimating the term…
Abstract
Capacity enhancement schemes are described for forward and reverse links of distributed cellular base stations consisting of a central unit and one or more remote units. In general, in one aspect, reverse link capacity is shared among remote units. The capacity sharing can be determined dynamically. The forward link capacity can also be enhanced by estimating the location of the mobile stations.
Claims33
A distributed base station comprising:
- a central unit having one or more modems, each modem including one or more input ports;
- one or more remote units, at least one of the remote units in communication with the central unit via a transmission medium, the one or more remote units each having one or more RF elements, each RF element having one or more receive antennas;
- and
- one or more combining modules configured to select one or more subsets of reverse link signals from the RF elements to be combined before each input port of the modem,
- wherein more than one of the RF elements share a reverse link capacity of at least one of the modems.
A method comprising
- generating, by a central unit, a signal associated with a mobile station;
- determining a first RF element associated with the mobile station based on an estimated location of the mobile station;
- and
- transmitting the signal to the first RF element,
- wherein the first RF element is included in remote units located separate from the central unit
A base station comprising:
- RF elements;
- and
- a central unit located separate from the RF elements, the central unit including:
- a modem, and
- a selection module configured to determine a first RF element associated with a mobile station based on an estimated location of the mobile station.
A distributed base station comprising:
- a central unit having one or more modems;
- one or more remote units, at least one of the remote units in communication with the central unit via a transmission medium, each remote unit having one or more RF elements;
- and
- a selection module configured to determine a first RF element associated with a mobile station based on an estimated location of the mobile station,
- wherein more than one RF element in the remote units share a forward link capacity of at least one of the modems.
Dependencies are inferred from the claim text.