Random access channel hopping for frequency division multiplexing access systems
AssigneeLG Electronics Inc.
InventorsDragan Vujcic, Patrick Fischer
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Abstract
A method of coordinating resources for repetition of random access bursts performed by a mobile terminal, the method comprising: determining groups of access slots based on parameters from a network, wherein each access slot is defined by any combination of frequency, time and code, and the access slots are organized according to a frequency pattern; transmitting an access burst on an access slot from a chosen group of access slots; and re-transmitting the access burst on the next access slot from the chosen group of access slots.
Claims17
A method of coordinating resources for repetition of random access bursts performed by a mobile terminal, the method comprising:
- determining, by the mobile terminal, groups of access slots based on parameters from a network, wherein the access slots are organized according to a frequency pattern and each access slot is defined by at least frequency, time or code;
- transmitting, by the mobile terminal, an access burst on an access slot of a chosen group of the groups of access slots;
- and
- re-transmitting, by the mobile terminal, the access burst on a next access slot of the chosen group,
- wherein the groups of access slots comprise:
- a first group of access slots corresponding to a first path loss greater than or equal to a first threshold value;
- a second group of access slots corresponding to a second path loss less than the first threshold value and greater than a second threshold value;
- and
- a third group of access slots corresponding to a third path loss less than the second threshold value;
- and
- wherein the first path loss, the second path loss and the third path loss represent a signal attenuation between the mobile terminal and the network.
A method of coordinating resources for repetition of random access bursts performed by a network, the method comprising:
- configuring, by the network, parameters for a terminal to determine groups of access slots, wherein the access slots are organized according to a frequency pattern and each access slot is defined by at least frequency, time or code;
- using, by the network, the configured parameters to determine when resources should not be allocated for other uplink transmissions;
- and
- transmitting, by the network, the configured parameters to the terminal,
- wherein the groups of access slots comprise:
- a first group of access slots corresponding to a first path loss greater than or equal to a first threshold value;
- a second group of access slots corresponding to a second path loss less than the first threshold value and greater than a second threshold value;
- and
- a third group of access slots corresponding to a third path loss less than the second threshold value;
- and
- wherein the first path loss, the second path loss and the third path loss represent a signal attenuation between the terminal and the network.
Dependencies are inferred from the claim text.