Methods and apparatus for providing base station position information and using position information to support timing and/or frequency corrections

A communications method comprising:

• operating a first base station to:
• periodically transmit first base station identification information identifying the first base station;
• and
• periodically transmit, over an airlink, a signal communicating a first base station determined current base station position, to a wireless communication terminal, wherein a timing adjustment is made at the wireless communication terminal based on a distance between the first base station and the wireless communication terminal and a Doppler shift frequency adjustment at the wireless communication terminal is determined from the first base station determined current base station position, the Doppler shift frequency adjustment based on a determined relative velocity of said wireless communication terminal relative to said first base station, the wireless communication terminal generating uplink signals for transmission from the wireless communication terminal, the uplink signals comprising the Doppler shift frequency adjustment based on the determined relative velocity of said wireless communication terminal relative to said first base station combined with a baseband signal or a carrier frequency.

A wireless terminal comprising:

• means for receiving, over an airlink, a signal from a base station communicating a base station determined current base station position;
• means for determining the relative distance between the base station and the wireless terminal based on the communicated current base station position;
• means for performing a timing adjustment operation as a function of the determined relative distance;
• means for determining the relative velocity of said wireless terminal relative to said base station;
• means for outputting a Doppler shift correction signal, the Doppler shift correction signal based on the determined relative velocity of said wireless terminal relative to said base station;
• and
• means for generating uplink signals for transmission from said wireless terminal, the uplink signals comprising the Doppler shift correction signal being based on the determined relative velocity of said wireless terminal relative to said base station combined with a baseband signal or a carrier frequency.

A method of operating a wireless terminal, comprising:

• receiving, over an airlink, a signal from a base station communicating a base station determined current base station position;
• determining the relative distance between the base station and the wireless terminal based on the communicated current base station position;
• performing a timing adjustment operation as a function of the determined relative distance;
• determining the relative velocity of said wireless terminal relative to said base station;
• outputting a Doppler shift correction signal, the Doppler shift correction signal being based on the determined relative velocity of said wireless terminal relative to said base station;
• and
• generating uplink signals for transmission from said wireless terminal, the uplink signals comprising the Doppler shift correction signal based on the determined relative velocity of said wireless terminal relative to said base station combined with a baseband signal or a carrier frequency.

A non-transitory machine readable medium for use in a wireless terminal, the non-transitory machine readable medium including executable instructions which when executed by a processor, control said wireless terminal to:

• receive, over an airlink, a signal from a base station communicating a base station determined current base station position;
• determine the relative distance between the base station and the wireless terminal based on the communicated current base station position;
• perform a timing adjustment operation as a function of the determined relative distance;
• determine the relative velocity of said wireless terminal relative to said base station;
• output a Doppler shift correction signal, the Doppler shift correction signal being based on the determined relative velocity of said wireless terminal relative to said base station;
• and
• generate uplink signals for transmission from said wireless terminal, the uplink signals comprising the Doppler shift correction signal based on the determined relative velocity of said wireless terminal relative to said base station combined with a baseband signal or a carrier frequency.