Method of optimizing data format selection procedure for up link communication

1. A method of optimizing a data format selection procedure (E-TFC) for up link transmission between a terminal and a base station, comprising:

optimizing the number of time slots to be used by the terminal to detect a command value transmitted from the base station to use the entire period of time T limit , and executing an update, wherein the base station transmits a signal including at least one repetition command to the terminal in a predetermined number of time slots, the command constructed to update at least one predetermined parameter intervening in the data format selection, and the terminal detects, on receiving the signal, the command value and conducts the update according to the detected value during a time window having a predetermined period of time T limit ;

calculating a period of time T rg between an end of the time slots and a start of the up link transmission;

estimating a period of time T limit available to execute the update;

comparing the period of time T rg with the period of time T limit ; and

reducing, if the period of time T rg is less than the period of time T limit , the number of time slots dedicated to the signal detection.

2. The method in accordance with claim 1 , wherein the transmission of the signal including the repetition command is carried out via an Enhanced Relative Grant Channel (E-RGCH channel) and the up link transmission is carried out via an Enhanced Dedicated Physical Data Channel (E-DPDCH).

3. The method in accordance with claim 1 , wherein the update parameter during the period of time T limit is associated with at least one of:

a relative/absolute grant detection procedure;

a procedure to update a serving grant procedure;

an E-TFC limitation/selection procedure;

a data encryption procedure; and

a data turbo encoding procedure.

4. The method in accordance with claim 1 , wherein the communication network between the terminal and the base station is a UMTS network.

5. A terminal comprising:

a unit that detects, on receiving a signal including a repetition command constructed to update at least one predetermined parameter intervening in a data format selection, a command value and conducting the update according to the detected value during a time window having a predetermined period of time T limit ;

a unit that optimizes the number of time slots to be used to detect the command value and conducting the update by using the entire period of time T limit ;

a unit that calculates a period of time T rg between an end of the time slots and a start of the up link transmission;

a unit that estimates a period of time T limit available to execute the update;

a unit that compares the period of time T rg with the period of time T limit ; and

a unit that reduces, if the period of time T rg is less than the period of time T limit ,the number of time slots dedicated to the signal detection.

6. The terminal in accordance with claim 5 , wherein the number of time slots dedicated to the detection of the command value is optimized.

7. A method comprising:

detecting, on receiving a signal including a repetition command constructed to update at least one predetermined parameter intervening in a data format selection, a command value and conducting the update according to the detected value during a time window having a predetermined period of time T limit ;

optimizing the number of time slots to be used to detect the command value and conducting the update by using the entire period of time T limit ,

wherein the optimizing comprises:

calculating a period of time T rg between an end of the time slots and a start of the up link transmission;

estimating a period of time T limit available to execute the update;

comparing the period of time T rg with the period of time T limit ; and

reducing, if the period of time T rg is less than the period of time T limit , the number of time slots dedicated to the signal detection.

8. A non-transitory computer-readable medium storing a program making a computer to execute:

processing which detects, on receiving a signal including a repetition command constructed to update at least one predetermined parameter intervening in a data format selection, a command value and which conducts the update according to the detected value during a time window having a predetermined period of time T limit ;

processing which optimizes the number of time slots to be used to detect the command value and which conducts the update by using the entire period of time T limit ,

wherein the processing which optimizes the number of time slots comprises:

processing which calculates a period of time T rg between an end of the time slots and a start of the up link transmission;

processing which estimates a period of time T limit available to execute the update;

processing which compares the period of time T rg with the period of time T limit ; and

processing which reduces, if the period of time T rg is less than the period of time T limit , the number of time slots dedicated to the signal detection.

9. A terminal comprising:

means for detecting, on receiving a signal including a repetition command constructed to update at least one predetermined parameter intervening in a data format selection, a command value and conducting the update according to the detected value during a time window having a predetermined period of time T limit ;

means for optimizing the number of time slots to be used to detect the command value and conducting the update by using the entire period of time T limit ;

means for calculating a period of time T rg between an end of the time slots and a start of the up link transmission;

means for estimating a period of time T limit available to execute the update;

means for comparing the period of time T rg with the period of time T limit ; and

means for reducing, if the period of time T rg is less than the period of time T limit , the number of time slots dedicated to the signal detection.