Method for improving performances of a mobile radiocommunication system using a power control algorithm

Claim 3

A method according to claim 1 , wherein said at least one parameter is the power control step size of the algorithm.

Claim 4

A method according to claim 2 , wherein said at least one modified parameter is an increased power control step size.

Claim 5

A method according to claim 1 , wherein said at least one modified parameter and said given duration have predetermined values.

Claim 6

A method according to claim 1 , wherein said given duration is determined as being passed when a given condition is fulfilled.

Claim 7

A method according to claim 5 , wherein said given condition is determined to be fulfilled based on successive power control results with said at least one modified parameter.

Claim 8

A method according to claim 6 , wherein said given condition is that two consecutive power control commands obtained with said at least one modified parameter are opposed.

Claim 9

A method according to claim 1 , wherein said at least one modified parameter and said given duration are determined based on statistics on power control results for a period before said transmission interruption.

Claim 10

A method according to claim 1 , wherein said power control is performed in the uplink transmission direction of said mobile radiocommunication system.

Claim 11

A method according to claim 1 , wherein said power control is performed in the downlink transmission direction of said mobile radiocommunication system.

Claim 12

A method according to claim 1 , wherein said mobile radiocommunication system is of CDMA type.

Claim 13

A mobile radiocommunication network entity ( 40 ) for performing a method according to claim 1 in an uplink transmission direction, comprising: means ( 41 ) for performing a power control algorithm, modified according to said method, means ( 42 ) for sending corresponding power control commands (C 1 ) to a mobile station ( 43 ).

Claim 14

A mobile station ( 43 ) for performing a method according to claim 1 in an uplink transmission direction, comprising: means ( 44 ) for receiving power control commands (C 1 ) from a mobile radiocommunication network entity ( 40 ), according to said method.

Claim 15

A mobile radiocommunication network entity ( 40 ′) for performing a method according to claim 1 in an uplink transmission direction, comprising: means ( 41 ′) for implementing a power control algorithm not modified according to said method, means ( 42 ′) for sending corresponding power control commands (C′ 1 ) to a mobile station ( 43 ′).

Claim 16

A mobile station ( 43 ′) for performing a method according to claim 1 in an uplink transmission direction, comprising: means ( 44 ′) for receiving power control commands (C′ 1 ) from a mobile radiocommunication network entity ( 40 ′), and for modifying said power control commands according to said method.

Claim 17

A mobile station ( 45 ) for performing a method according to claim 1 in a downlink transmission direction, comprising: means ( 46 ) for performing a power control algorithm, modified according to said method, means ( 47 ) for sending corresponding power control commands (C 2 ) to a mobile radiocommunication network entity ( 48 ).

Claim 18

A mobile network entity ( 48 ) for performing a method according to claim 1 in a downlink transmission direction, comprising: means ( 49 ) for receiving power control commands (C 2 ) from a mobile station, according to said method.

Claim 19

A mobile station ( 45 ′) for performing a method according to claim 1 in a downlink transmission direction, comprising: means ( 46 ′) for implementing a power control algorithm, not modified according to said method, means ( 47 ′) for sending corresponding power control commands (C′ 2 ) to a mobile radiocommunication network entity ( 48 ′).

Claim 20

A mobile network entity ( 48 ′) for performing a method according to claim 1 in a downlink transmission direction, comprising: means ( 49 ′) for receiving power control commands (C′ 2 ) from a mobile station ( 45 ′), and for modifying said power control commands according to said method.

Claim 21

A mobile radiocommunication system, comprising at least one mobile station according to any one of claims 13 , 15 , 16 , 18 .

Claim 22

A mobile radiocommunication system, comprising at least one mobile network entity according to any one of claims 12 , 14 , 17 and 19 .

Claim 25

The method according to claim 22 , wherein said modified power control step size is an increased power control step size.

Claim 26

The method according to claim 23 , wherein said increased power control step size is equal to two times said non-modified power control step size.

Claim 27

The method according to claim 22 , wherein said given duration is equal to the transmission interruption period.

Claim 28

A mobile station for a mobile radiocommunication system using a power control algorithm in an uplink transmission direction, said mobile station comprising: means for, if transmission is not resumed after a transmission interruption, or if transmission is resumed after a transmission interruption and a given duration following said transmission interruption has passed, setting a power control step size for said mobile station to a non-modified power control step size, and means for, if transmission is resumed after a transmission interruption, and if a given duration following said transmission interruption is still running, setting a power control step size for said mobile station to a modified power control step size, said modified power control step size and said given duration being determined so as to compensate for effects of said transmission interruption on power control.

Claim 29

A mobile station for a mobile radiocommunication system using a power control algorithm in an uplink transmission direction, said mobile station comprising: means for, if transmission is not resumed after a transmission interruption, or if transmission is resumed after a transmission interruption and a given duration following said transmission interruption has passed, setting a power control step size for said mobile station to a non-modified power control step size, and means for, if transmission is resumed after a transmission interruption, and if a given duration following said transmission interruption is still running, setting a power control step size for said mobile station to a modified power control step size, said modified power control step size and said given duration being determined so as to compensate for effects of said transmission interruption on power control.

Claim 30

The mobile station according to claim 26 , wherein said modified power control step size is an increased power control step size.

Claim 31

The mobile station according to claim 27 , wherein said increased power control step size is equal to two times said non-modified power control step size.

Claim 32

The mobile station according to claim 26 , wherein said given duration is equal to the transmission interruption period.

Claim 33

The mobile radiocommunication system, including at least one mobile station according to claim 26 .

Claim 34

A mobile radiocommunication network entity for a mobile radiocommunication system using a power control algorithm in an downlink transmission direction, said mobile radiocommunication network entity comprising: means for, if transmission is not resumed after a transmission interruption, or if transmission is resumed after a transmission interruption and a given duration following said transmission interruption has passed, setting a power control step size for said mobile station to a non-modified power control step size, and means for, if transmission is resumed after a transmission interruption, and if a given duration following said transmission interruption is still running, setting a power control step size for said mobile station to a modified power control step size, said modified power control step size and said given duration being determined so as to compensate for the effects of said transmission interruption on power control.

Claim 35

A mobile radiocommunication network entity for a mobile radiocommunication system using a power control algorithm in an downlink transmission direction, said mobile radiocommunication network entity comprising: means for, if transmission is not resumed after a transmission interruption, or if transmission is resumed after a transmission interruption and a given duration following said transmission interruption has passed, setting a power control step size for said mobile station to a non-modified power control step size, and means for, if transmission is resumed after a transmission interruption, and if a given duration following said transmission interruption is still running, setting a power control step size for said mobile station to a modified power control step size, said modified power control step size and said given duration being determined so as to compensate for the effects of said transmission interruption on power control.

Claim 36

The mobile radiocommunication network entity according to claim 31 , wherein said modified power control step size is an increased power control step size.

Claim 37

The mobile radiocommunication network entity according to claim 31 , wherein said increased power control step size is equal to two times said non-modified power control step size.

Claim 38

The mobile radiocommunication network entity according to claim 31 , wherein said given duration is equal to the transmission interruption period.

Claim 39

The mobile radiocommunication system, including at least one mobile radiocommunication network entity according to claim 31 .