User equipment grouping and common control signaling to user equipment groups
A cellular telecommunications system and method of scheduling a group of user equipments is provided. The system includes a macro cell with a macro base station and multiple associated low power nodes (LPN's). The macro base station and the LPN's share the same cell ID. The system and method provide for scheduling a group of UE's by grouping a plurality of the UE's together, assigning a group identifier to the group, notifying the group and encoding a control channel with the group identifier. A single control channel is delivered to each UE in the group of UE's. The UE's of the group of UE's may be processed by different LPN's. The transmitted control channel may be included in a DCI (downlink control information) and delivers uplink scheduling grants to the UE's. Based on the transmitted control channel, the UE's are scheduled for uplink transmission.
1. A method of scheduling a group of user equipment devices (UE's), comprising:
grouping a plurality of UE's together thereby forming a UE group;
assigning a group identifier to said UE group;
notifying said UE group of said group identifier;
encoding a control channel with said group identifier; and
transmitting said control channel with said group identifier to said UE group, wherein said transmitting said control channel comprises transmitting a common control command to each UE of said UE group,
wherein each of said UE's of said UE group is associated with a macro cell including a plurality of low power nodes (LPN's) associated with a single macro base station, wherein at least one UE of said UE group is configured to send an uplink signal to more than one of said LPN's and said macro base station, and wherein said plurality of LPN's share a same cell identification.
2. The method as in claim 1 , further comprising repeating the transmitting said control channel, a plurality of times.
3. The method as in claim 1 , wherein said group identifier includes all said UE's of said UE group having the same UE identity number.
4. The method as in claim 1 , wherein said group identifier comprises a Group Radio Network Temporary Identifier (G-RNTI) group identifier.
5. The method as in claim 1 , wherein each UE of said UE group is processed by an associated LPN of said plurality of LPN's and no two UE's of said UE group are processed by the same one of said LPN's, and said macro base station and said plurality of LPN's share the same cell identification.
6. The method as in claim 1 , wherein said transmitting comprises broadcasting, and said plurality of UE's are a plurality of UE's that are scheduled on the same resources.
7. The method as in claim 6 , wherein said plurality of UE's that are scheduled on the same resources is determined based on location estimation of the UE's positions, and said transmitting said control channel comprises transmitting a common control command to each UE of said UE group.
8. The method as in claim 1 , wherein said macro cell is a macro cell of an LTE system and said macro base station and said plurality of LPN's share the same cell identification.
9. The method as in claim 1 , wherein said transmitting said control channel includes delivering uplink scheduling grants to said UE's and further comprising scheduling transmissions of said UE's for uplink transmission, based on said transmitting said control channel.
10. The method as in claim 1 , further comprising, after said transmitting,
further grouping a further plurality of UE's together thereby forming a further UE group;
further assigning a further group identifier to the further UE group;
notifying said further UE group of said further group identifier;
encoding a further control channel with said further group identifier; and
further transmitting said further control channel with said further group identifier to said further UE group.
11. The method as in claim 10 , wherein said further UE group is different from said UE group.
12. The method as in claim 10 , wherein said plurality of UE's are part of a population of UE's and said further grouping comprises regrouping said population of UE's to form said further UE group.
13. A non-transitory, tangible computer readable storage medium encoded with computer program code, wherein, when the computer program code is executed by a processor, the processor performs a method for scheduling a group of user equipment devices (UE's) in a telecommunication system that includes a plurality of low power nodes (LPN's) associated with a single macro base station, said method comprising:
grouping a plurality of UE's together thereby forming a UE group;
assigning a group identifier to said UE group;
notifying said UE group of said group identifier;
encoding a control channel with said group identifier; and
transmitting said control channel with said group identifier to said UE group, wherein said transmitting said control channel comprises transmitting a common control command to each UE of said UE group,
wherein each of said UE's of said UE group is associated with a macro cell including said plurality of LPN's associated with said single macro base station, wherein at least one UE of said UE group is configured to send an uplink signal to more than one of said LPN's and said macro base station, and wherein said plurality of LPN's share a same cell identification.
14. The non-transitory, tangible computer readable storage medium as in claim 13 , wherein said method further comprises repeating said transmitting said control channel, a plurality of times.
15. The non-transitory, tangible computer readable storage medium as in claim 13 , wherein said group identifier being a Group Radio Network Temporary Identifier (G-RNTI) group identifier.
16. The non-transitory, tangible computer readable storage medium as in claim 13 , wherein each UE of said UE group is associated with a different one of said LPN's and said macro base station and said plurality of LPN's share the same cell identification.
17. The non-transitory, tangible computer readable storage medium as in claim 16 , wherein said plurality of UE's are a plurality of UE's that are scheduled on the same resources based on location estimation of the UE positions.
18. The non-transitory, tangible computer readable storage medium as in claim 13 , wherein said method further comprises:
further grouping a further plurality of UE's together thereby forming a further UE group;
further assigning a further group identifier to said further UE group;
notifying said further UE group of said further group identifier;
encoding a further control channel with said further group identifier; and
further transmitting said further control channel with said further group identifier to said further UE group.
19. The non-transitory, tangible computer readable storage medium as in claim 18 , wherein said method includes each of said UE's of said UE group being processed by more than one of said LPN's, said macro base station and said plurality of LPN's share the same cell identification and said further transmitting said further control channel comprises further transmitting said further control command to each UE of said UE group.
20. The non-transitory, tangible computer readable storage medium as in claim 13 , wherein said method includes said transmitting said control channel including delivering uplink scheduling grants to said UE's and further comprising scheduling transmissions of said UE's for uplink transmission, based on said transmitting said control channel.
21. A method of scheduling a group of user equipment devices (UE's), comprising:
grouping a plurality of UE devices together thereby forming a UE group;
assigning a group identifier to said UE group;
notifying said UE group of said group identifier;
encoding a control channel with said group identifier; and
transmitting said control channel with said group identifier to said UE group, wherein said transmitting said control channel comprises transmitting a common control command to each UE of said UE group,
wherein each of said UE's of said UE group is associated with a macro cell including a plurality of low power nodes (LPN's) associated with a macro base station and each of said LPN's is configured to receive an uplink signal from said UE group and a further UE group, and wherein said plurality of LPN's share a same cell identification.
22. The method as in claim 21 , wherein at least one UE of said UE group is associated with more than one LPN of said plurality of LPN's.
23. The method as in claim 21 , wherein said transmitting said control channel includes delivering uplink scheduling grants to said UE's such that said plurality of UE's are scheduled on common resources.
24. The method as in claim 23 , wherein said common resources comprise common physical resource blocks (PRB's).
25. The method as in claim 21 , wherein said transmitting said control channel includes delivering uplink scheduling grants to said UE's and further comprising scheduling transmissions of said UE's for uplink transmission, based on said transmitting said control channel.
26. The method as in claim 21 , wherein each UE of said UE group is processed by an associated LPN of said plurality of LPN's and no two UE's of said UE group are processed by the same one of said LPN's, and said macro base station and said plurality of LPN's share the same cell identification.