Methods and tools for expanding coverage of an ofdm broadcast transmitter via transmit timing advance
AssigneeQUALCOMM Incorporated
InventorGordon Kent Walker
Life of this patent
Estimating the term…
Abstract
Systems and methods are provided for determining transmitter phase adjustments that advance or delay transmissions from one or more transmitters to increase coverage of a wireless network and mitigate noise in the network. An analysis tool is provided that considers various parameters in a given network configuration and generates predictions for transmitter phase adjustments in view of such configurations.
Claims27
A method to increase broadcast coverage in a wireless network, comprising:
- adjusting a signal phase of at least one transmitter clock in view fo determined transmitter parameter information;
- and
- broadcasting the signal phase across a wireless network to increase broadcast coverage of the wireless network.
A machine readable medium having machine readable instructions stored thereon, comprising:
- configuring a network having a number of transmit sites at locations within a geographical area;
- determining a field strength associated with the transmit sites for mobile stations within the geographical area;
- calculating a signal interference and noise ratio (SINR) based on the determined field strengths;
- and
- adjusting one or more signal phases at the transmit sites based on the SINR.
A component to determine network phase adjustments, comprising:
- means for analyzing a network having a subset of transmit sites at locations within a geographical area;
- means for determining field strengths associated with the subset of transmit sites for mobile stations within the geographical area;
- means for adjusting a phase of at least one of the transmit sites based on the determined interference pattern.
A wireless communications processor, comprising:
- a memory that includes a component to analyze a wireless field strengths in a given geographical area;
- and
- at least one processor to generate trnasmitter phase akjustments for at least one transmitter in a transmitter subset to mitigate transmitter interference in the geographical area.
A wireless communications apparatus, comprising:
- a component to determine signal strengths from a subset of transmitters;
- a processor to determine a phase adjustment for at least one transmitter form the subset of transmitters;
- and
- a generator to transmit the phase adjustment across a wireless network.
A base station for a wireless communications system, comprising:
- a component to adjust a signal phase of a wireless transmitter;
- a processor to determine an interference pattern in view of at least one other transmitter broadcast;
- and
- a transmitter to broadcast the signal phase across a wireless network.
An access point for a wireless communications system, comprising:
- a component to receive a signal from a subset of wireless transmitters;
- a component to determine a signal interference and noise ratio (SINR) for the subset of wireless transmitters;
- and
- a component process a phase adjustment from the wireless transmitters in view of the SINR.
Dependencies are inferred from the claim text.