Method and system for allocating communication network resources
A method for allocating communication network resources assigns beam to multiple items of user equipment based on beam-closed manner, and allocates the beam to the item of user equipment with the smallest value if more than one item of the user equipment is assigned to the same beam Then, the method uses a rate control to the multiple items of user equipment according to rate closure manner, and determines whether all items of user equipment is assigned to the beam. Hence, the beam is emitted by the base station and the direction of the user ability align for efficient data transfer.
1. A method for allocating communication network resources, comprising:
initializing network parameters and collecting queue status information and channel status information;
assigning beam to multiple items of user equipment based on beam-closed manner;
allocating the beam to the item of user equipment with the smallest value if more than one item of the user equipment is assigned to the same beam;
using a rate control to the multiple items of user equipment according to rate closure manner; and
determining whether all items of user equipment is assigned to the beam;
wherein the rate closure manner is given by
R
U
m
,
n
(
t
)
=
log
2
(
1
+
d
U
m
,
n
(
t
)
I
SI
m
,
n
(
t
)
+
I
U
m
,
n
(
t
)
+
σ
Um
,
n
2
)
,
where the d U m,n (t) is a power of transmit signals from m-th uplink (UL) user equipment UE to n-th full duplex (FD) small cell base station (SBS) at time slot t.
2. The method according to claim 1 , wherein the queue status information is generated after obtaining update signal via the uplink (UL) user equipment (UE) of the full duplex (FD) small cell base station (SBS).
3. The method according to claim 1 , wherein the channel status information is generated via feedback of the full duplex (FD) small cell base station (SBS).
4. The method according to claim 1 , wherein the beam-closed manner is given by
Q U m ( t+ 1)=max[ Q U m ( t )−Σ n=1 N R U m,n ( t ),0]+ A U m ( t ),
where the Q U m (t) represents data backlog of m-th UL UE at time slot t, the R U m,n (t) is a data transmission rate from m-th UL UE to n-th FD SBS at time slot t, the A U m (t) is the amount of new data that enters into queue backlog (QB) of m-th UL UE at time slot t.
5. A system for allocating communication network resources, comprising:
multiple items of user equipment; and
a full duplex small cell base station, initializing network parameters and collecting queue status information and channel status information, assigning beam to the multiple items of user equipment based on beam-closed manner, allocating the beam to the item of user equipment with the smallest value if more than one the user equipment is assigned to the same beam, using a rate control to the multiple items of user equipment according to rate closure manner; and determining whether all items of user equipment is assigned to the beam;
wherein the rate closure manner is given by
R
U
m
,
n
(
t
)
=
log
2
(
1
+
d
U
m
,
n
(
t
)
I
SI
m
,
n
(
t
)
+
I
U
m
,
n
(
t
)
+
σ
Um
,
n
2
)
,
where the d U m,n (t) is a power of transmit signals from m-th uplink (UL) user equipment (UE) to n-th full duplex (FD) small cell base station (SBS) at time slot t.
6. The system according to claim 5 , wherein the queue status information is generated after obtaining update signal via the uplink (UL) user equipment (UE) of the full duplex (FD) small cell base station (SBS).
7. The system according to claim 5 , wherein the channel status information is generated via feedback of the full duplex small cell base station.
8. The system according to claim 5 , wherein the beam-closed manner is given by
Q U m ( t+ 1)=max[ Q U m ( t )−Σ n=1 N R U m,n ( t ),0]+ A U m ( t ),
where the Q U m (t) represents data backlog of m-th UL UE at time slot t, the R U m,n (t) is a data transmission rate from m-th UL UE to n-th FD SBS at time slot t, the A U m (t) is the amount of new data that enters into QB of m-th UL UE at time slot t.