Priority-based fairness and interference signalling technique in a flexible spectrum use wireless communication system
The exemplary embodiments of the invention relate to at least a method, computer program, and apparatus to transmit a beacon from a first access node to a first user terminal associated with the first access node and also to a second user terminal associated with a second access node, where the beacon includes information indicating a priority of the first access node with respect to a radio resource allocation, and receive feedback from the first user equipment associated with the first access node, where the feedback includes information indicating a priority of the second access node. Further, in accordance with the first embodiments there is adjusting a value of a priority of a wireless network access node over time depending on an amount of radio resources reserved for use by the wireless network access node, such that the priority value decreases as more radio resources are reserved and increases as fewer radio resources are reserved, and transmitting the value of the priority to at least one other wireless network access node. Additionally, the exemplary embodiments of the invention relate to receiving an identification of a radio resource from a serving access node, and transmitting an interfering signal that specifies the identified radio resource. In addition, exemplary embodiments of the invention include detecting at an access node, uplink interference in a radio resource, and releasing a radio resource identified by the radio resource in which uplink interference was detected for use by another access node.
1. A method comprising:
transmitting a beacon from a first access node to a first user equipment associated with the first access node and also to a second user equipment associated with a second access node, where the beacon includes information indicating a priority of the first access node with respect to a radio resource allocation; and
receiving feedback from the first user equipment associated with the first access node, where the feedback includes information indicating a priority of the second access node, where the first access node relinquishes radio resources if the second access node has a higher priority and has a need for additional resources,
wherein the priority is configured to provide a penalty for reserving more resources than are actually needed by the first access node and/or the second access node,
the method further comprises computing a value of the priority based on an average amount of the radio resources reserved in the past; and
the value of the priority is computed by implementing the following equation:
pr
(
t
+
1
)
=
α
·
pr
(
t
)
+
(
1
-
α
)
·
(
1
-
#
reserved_RBs
#
total_RBs
+
1
)
,
wherein
pr=priority value
t=time unit,
α=weighting factor or forgetting factor, and
RBs=resource blocks.
2. The method according to claim 1 , where the priority of the first access node has a value that changes over time depending on an amount of radio resources reserved by the first access node, where the priority decreases as the first access node reserves more radio resources and increases as the first access node reserves fewer radio resources.
3. The method according to claim 1 , where the priority of the second access node was received by the first user equipment in a beacon from the second access node.
4. An apparatus comprising:
at least one processor; and at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least:
transmit a beacon from a first access node to a first user equipment associated with the first access node and also to a second user equipment associated with a second access node, where the beacon includes information indicating a priority of the first access node with respect to a radio resource allocation; and
receive feedback from the first user equipment associated with the first access node, where the feedback includes information indicating a priority of the second access node, where the apparatus relinquishes radio resources at the first access node if the second access node has a higher priority and has a need for additional resources,
wherein the priority is configured to provide a penalty for reserving more resources than are actually needed by the first access node and/or the second access node,
the at least one memory and the computer program code are further configured, with the at least one processor, to cause the apparatus to at least compute a value of the priority based on an average amount of the radio resources reserved in the past, and
the value of the priority is computed by implementing the following equation:
pr
(
t
+
1
)
=
α
·
pr
(
t
)
+
(
1
-
α
)
·
(
1
-
#
reserved_RBs
#
total_RBs
+
1
)
,
wherein
pr=priority value,
t=time unit,
α=weighting factor or forgetting factor, and
RBs=resource blocks.
5. The apparatus according to claim 4 , where the priority of the first access node has a value that changes over time depending on an amount of radio resources reserved by the first access node, where the priority decreases as the apparatus reserves more radio resources for the first access node and increases as the apparatus reserves fewer radio resources for the first access node.
6. A method comprising:
adjusting a value of a priority of a wireless network access node over time depending on an amount of radio resources reserved for use by the wireless network access node, where the priority value decreases as more radio resources are reserved and increases as fewer radio resources are reserved; and
transmitting the value of the priority to at least one other wireless network access node,
wherein the priority is configured to provide a penalty for reserving more resources than are actually needed by the wireless network access node,
the method further comprises computing a value of the priority based on an average amount of the radio resources reserved in the past, and
the value of the priority is computed by implementing the following equation:
pr
(
t
+
1
)
=
α
·
pr
(
t
)
+
(
1
-
α
)
·
(
1
-
#
reserved_RBs
#
total_RBs
+
1
)
,
wherein
pr=priority value,
t=time unit,
α=weighting factor or forgetting factor, and
RBs=resource blocks.
7. The method according to claim 6 , where transmitting takes place via a wireless network mobile node.
8. An apparatus comprising:
at least one processor; and
at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least: adjust a value of a priority of a wireless network access node over time depending on an amount of radio resources reserved for use by the wireless network access node, where the priority value decreases as more radio resources are reserved and increases as fewer radio resources are reserved; and
transmit the value of the priority to at least one other wireless network access node,
wherein the priority is configured to provide a penalty for reserving more resources than are actually needed by the wireless network access node,
the at least one memory and the computer program code are further configured, with the at least one processor, to cause the apparatus to at least compute a value of the priority based on an average amount of the radio resources reserved in the past, and
the value of the priority is computed by implementing the following equation:
pr
(
t
+
1
)
=
α
·
pr
(
t
)
+
(
1
-
α
)
·
(
1
-
#
reserved_RBs
#
total_RBs
+
1
)
,
wherein
pr=priority value,
t=time unit,
α=weighting factor or forgetting factor, and
RBs=resource blocks.
9. The apparatus according to claim 8 , where transmitting takes place via a wireless network mobile node.
10. The method according to claim 1 , wherein the value of the priority decreases in time once the resources are reserved for use.
11. The method according to claim 1 , wherein any free or unreserved resources are taken regardless of the priority of the first access node or the second access node.
12. The method according to claim 1 , wherein the first access node and the second access node are not left without any radio resources regardless of how low each of their priorities are.
13. The method according to claim 1 , wherein the penalty is that it lowers the priority of the first access node or the second access node proportionately when more resources are reserved than used.
14. The apparatus according to claim 4 , wherein the penalty is that it lowers the priority of the first access node or the second access node proportionately when more resources are reserved than used.
15. The apparatus according to claim 4 , wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least compute a value of the priority based on an average amount of the radio resources reserved in the past.
16. The apparatus according to claim 4 , wherein a value of the priority decreases in time once the resources are reserved for use.
17. The apparatus according to claim 4 , wherein any free or unreserved resources are taken regardless of the priority of the first access node or the second access node.
18. The apparatus according to claim 4 , wherein the first access node and the second access node are not left without any radio resources regardless of how low each of their priorities are.