System and method for performance optimization in and through a distributed antenna system
First Claim
1. A method for operating a Distributed Antenna System (DAS), the method comprising:
- providing a first Digital Remote Unit (DRU) and a second DRU, wherein the first DRU and the second DRU are operable to send and receive wireless radio signals, wherein the first DRU is associated with a first geographic area and the second DRU is associated with a second geographic area adjacent to the first geographic area;
providing a Digital Access Unit (DAU) operable to communicate with the first DRU and the second DRU via an optical signal, wherein the DAU is coupled to at least one sector of a base transceiver station (BTS);
receiving first uplink signals at the first DRU;
monitoring, at the first DRU, train activity in the first geographic area;
increasing a first gain coefficient associated with the first DRU in response to determining an increase in monitored train activity in the first geographic area;
scaling the first uplink signals received at the first DRU by the first gain coefficient;
transmitting, to the DAU, the first scaled uplink signals;
decreasing the first gain coefficient associated with the first DRU in response to determining a decrease in monitored train activity in the first geographic area;
increasing a second gain coefficient associated with the second DRU in response to determining an increase in monitored train activity in the second geographic area;
receiving second uplink signals at the second DRU;
scaling the second uplink signals received at the second DRU by the second gain coefficient; and
transmitting, to the DAU, the second scaled uplink signals.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for operating a DAS includes providing a set of digital remote units (remotes) operable to send and receive wireless radio signals. Each of the set of remotes is associated with a geographic area. The method also includes providing a digital access unit (host) operable to communicate with the set of remotes, receiving uplink signals at one or more of the set of remotes, and monitoring train activity in the geographic areas. The method further includes increasing a gain coefficient associated with one of the set of remotes in response to determining an increase in monitored train activity, decreasing a gain coefficient associated with another of the set of remotes in response to determining a decrease in monitored train activity, and transmitting, to the host, scaled uplink signals associated with the one of the set of remotes and the another of the set of remotes.
-
Citations
20 Claims
-
1. A method for operating a Distributed Antenna System (DAS), the method comprising:
-
providing a first Digital Remote Unit (DRU) and a second DRU, wherein the first DRU and the second DRU are operable to send and receive wireless radio signals, wherein the first DRU is associated with a first geographic area and the second DRU is associated with a second geographic area adjacent to the first geographic area; providing a Digital Access Unit (DAU) operable to communicate with the first DRU and the second DRU via an optical signal, wherein the DAU is coupled to at least one sector of a base transceiver station (BTS); receiving first uplink signals at the first DRU; monitoring, at the first DRU, train activity in the first geographic area; increasing a first gain coefficient associated with the first DRU in response to determining an increase in monitored train activity in the first geographic area; scaling the first uplink signals received at the first DRU by the first gain coefficient; transmitting, to the DAU, the first scaled uplink signals; decreasing the first gain coefficient associated with the first DRU in response to determining a decrease in monitored train activity in the first geographic area; increasing a second gain coefficient associated with the second DRU in response to determining an increase in monitored train activity in the second geographic area; receiving second uplink signals at the second DRU; scaling the second uplink signals received at the second DRU by the second gain coefficient; and transmitting, to the DAU, the second scaled uplink signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A system for operating a Distributed Antenna System (DAS), the system comprising:
-
a plurality of Digital Remote Units (DRUs), each configured to receive wireless radio uplink signals and transmit wireless radio downlink signals wherein a first DRU of the plurality of DRUs is associated with a first geographic area and a second DRU of the plurality of DRUs is associated with a second geographic area adjacent to the first geographic area, each of the plurality of DRUs configured to; receive uplink signals; scaling the uplink signals received by a corresponding gain coefficient; and a plurality of inter-connected Digital Access Units (DAUs), each configured to communicate with at least one of the plurality of DRUs via optical signals and each being coupled to at least one sector of a base station to receive scaled uplink signals; a plurality of stationary detectors, each configured to measure uplink power at one of the plurality of DRUs and motion of a train; and a train activity monitor, co-located at each DRU of the plurality of DRUs, communicatively coupled to the plurality of stationary detectors and configured to; monitor a level of train activity in a geographic coverage area for each of the plurality of DRUs using the measured uplink power and the measured motion of the train; and vary gain coefficients for each of the wireless radio uplink signals in response to the measured uplink power and the level of train activity in the geographic coverage area for each of the plurality of DRUs by; decreasing a first gain coefficient associated with the first DRU in response to determining a decrease in monitored train activity in the first geographic area; and increasing a second gain coefficient associated with the second DRU in response to determining an increase in monitored train activity in the second geographic area. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification