Transmission resource management
A communication network comprises a management entity adapted for allocating a transmission resource to a terminal from a plurality of terminals. A mobility value is associated with each terminal of the plurality of terminals, this mobility value indicating a level of mobility of a terminal in the communication network. Next, a terminal is selected from among the plurality of terminals on the basis of a characteristic relating to a condition of instantaneous transmission of the terminal and of a characteristic relating to a condition of mean transmission of the terminal, while taking account of the mobility value which is associated therewith. Thereafter, the transmission resource is allocated to the selected terminal.
1. A method for the management of transmission resources in a communication network comprising a management entity adapted for allocating a transmission resource to a terminal from a plurality of terminals,
said method comprising the following steps at the level of the management entity:
/a/ associating a mobility value with each terminal of said plurality of terminals, said mobility value indicating a level of mobility of a terminal in the communication network, said mobility value being determined while taking account of at least one from among a first value indicating a cell change frequency and a second value indicating a modulation and coding change frequency for said terminal during a given period of time;
/b/ selecting a terminal from among the plurality of terminals on the basis of a selection value m i (t) relating to a condition of instantaneous transmission of the terminal and of a characteristic relating to a condition of mean transmission of the terminal, while taking account of the mobility value which is associated therewith; and
/c/ allocating the transmission resource to the selected terminal;
wherein the selection value m i (t) is a combination of the instantaneous transmission rate and the mean transmission rate in which the mean transmission rate is weighted in function of the value of a parameter α k(i) varying inversely to the mobility value k(i) associated with the considered terminal (i).
2. The management method according to claim 1 , wherein the selection value m i (t) is determined for each terminal i of the plurality of terminals according to the following equation:
m
i
(
t
)
=
r
i
(
t
)
(
R
i
(
t
)
)
α
k
(
i
)
where r i (t) is a value of the instantaneous transmission rate of the terminal i;
where R i (t) is a value of the mean transmission rate achieved by the terminal i over a given period of time; and
where α k(i) is the parameter which varies inversely to the mobility value k(i) associated with the terminal i, when the mobility value increases with the mobility of a terminal; and
wherein the management entity selects the terminal with which the highest selection value is associated.
3. The management method according to claim 2 , wherein the communication network is a cellular network, the parameter α k(i) is a value fixed for each cell.
4. The management method according to claim 2 , wherein successive sets of successive mobility values k(i) represent respective classes of mobility, and wherein the parameter α k(i) is a value fixed for each class of mobility.
5. A transmission resource management entity in a communication network adapted for allocating a transmission resource to a terminal from among a plurality of terminals,
said management entity comprising:
a determination entity adapted for determining a mobility value to be associated with a terminal while taking account of at least one from among a first value indicating a cell change frequency and a second value indicating a modulation and coding change frequency for said terminal during a given period of time;
an association entity adapted for associating the determined mobility value to each terminal from said plurality of terminals, said mobility value indicating a level of mobility of a terminal in the communication network;
a selection entity adapted for selecting a terminal from among the plurality of terminals on the basis of a selection value m i (t) relating to a condition of instantaneous transmission of the terminal and of a characteristic relating to a condition of mean transmission of the terminal, while taking account of the mobility value which is associated therewith; and
a decision entity adapted for a transmission resource to the selected terminal;
wherein the selection value m i (t) is a combination of the instantaneous transmission rate and the mean transmission rate in which the mean transmission rate is weighted in function of the value of a parameter α k(i) varying inversely to the mobility value k(i) associated with the considered terminal (i).
6. The transmission resource management entity according to claim 5 , wherein the determination entity is further adapted for determining the selection value m i (t) for each terminal i of the plurality of terminals according to the following equation:
m
i
(
t
)
=
r
i
(
t
)
(
R
i
(
t
)
)
α
k
(
i
)
where r i (t) is a value of the instantaneous transmission rate of the terminal i;
where R i (t) is a value of the mean transmission rate achieved by the terminal i over a given period of time; and
where α k(i) is the parameter which varies inversely to the mobility value k(i) associated with the terminal i, when the mobility value increases with the mobility of a terminal; wherein the management entity selects the terminal with which the highest selection value is associated.
7. A base station in a communication network adapted for allocating a transmission resource to a terminal from a plurality of terminals, said base station comprising the transmission resource management entity according to claim 5 .
8. A network controller in a communication network adapted for allocating a transmission resource to a terminal from among a plurality of terminals, said network controller comprising the transmission resource management entity according to claim 5 .
9. A non-transitory computer-readable storage medium with a program stored thereon, wherein the program comprises program code instructions for implementing the method according to claim 1 .