Extended dynamic resource allocation in packet data transfer

Abstract

A method for control of packet data transmissions in a TDMA wireless network to provide for additional choices in the allocation of communication channels. The fixed relationship in the timing of the downlink allocation signalling and subsequent uplink transmission is altered for certain classes of mobile station to avoid physical constraints. Examples of variations in USF signalling in GPRS are given.

What is claimed is:  
     
         1 . A method for controlling packet data transmissions in a TDMA mobile communications system wherein transmitters and receivers share channel resources dynamically for uplink and downlink operating periods and where downlink signals control subsequent uplink resource allocations in a fixed predefined timing relationship, wherein assignment of alternative redefined timing relationships to increase the availability of uplink resources when uplink resources are otherwise constrained by prescribed allocations of measurement and turnaround periods.  
     
     
         2 . A mobile station for packet data transmissions in a mobile communications system, comprising: 
 a transmitter adapted to dynamically share channel resources for uplink and downlink operating periods with a receiver; and    a slot allocation calculator adapted to allocate uplink resources in a predefined timing relationship controlled by the downlink signals,    wherein said slot allocation calculator is adapted to redefine timing relationships to increase the availability of uplink resources when uplink resources are otherwise constrained by prescribed allocations of measurement and turnaround periods.    
     
     
         3 . A base station for packet data transmissions in a mobile communications system, comprising: 
 a transmitter adapted to dynamically share channel resources for uplink and downlink operating periods with a receiver; and    a slot allocation calculator adapted to allocate uplink resources in a predefined timing relationship controlled by the downlink signals,    wherein said slot allocation calculator is adapted to redefine timing relationships to increase the availability of uplink resources when uplink resources are otherwise constrained by prescribed allocations of measurement and turnaround periods.