CARRIER AGGREGATION OF CARRIERS WITH SUBFRAME RESTRICTIONS

• US 20130114472A1
• Filed: 04/27/2012
• Published: 05/09/2013
• Est. Priority Date: 04/29/2011
• Status: Active Grant

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Inventors: Tamaki, Nobuyuki, Stern-Berkowitz, Janet A., Shin, Sung-Hyuk, Sadeghi, Pouriya, Pelletier, Ghyslain
• Granted Patent: US 9,125,188 B2
• Time in Patent Office: Days
• US Class Current: 370/280
• CPC Class Codes: H04B 7/14 Relay systems
• CPC Class Codes: H04B 7/15542 Selecting at relay station its transmit and receive resources selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/0097 Relays
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

Embodiments contemplate enabling relay node uplink control information transmission on an interface between a relay node and a donor eNodeB (DeNB) in one or more subframes. Embodiments contemplate techniques to avoid restrictions on uplink transmissions on a cell (perhaps due to subframe configuration), such as on a primary cell, where the restrictions may make relay node uplink control information transmission difficult (if not impossible) on the interface between a relay node and a donor eNodeB (DeNB). Embodiments also contemplate that resources on the interface between the relay node and the donor eNodeB may be scheduled across one or more component carriers or serving cells.

Claims

1. A node, the node in communication with a wireless communication system, the node configured, at least in part, to:

communicate with at least a first serving cell and a second serving cell;

receive a first subframe partitioning configuration for the first serving cell;

receive a second subframe partitioning configuration for the second serving cell; and

apply at least a part of the first subframe partitioning configuration and at least a part of the second subframe partitioning configuration to at least one of the first serving cell or the second serving cell.

2. The node of claim 1, wherein the first serving cell is a primary serving cell (Pcell) and the second serving cell is a secondary serving cell (Scell).

3. The node of claim 1, wherein the first subframe partitioning configuration is different than the second subframe partitioning configuration.

4. The node of claim 1, wherein the node is further configured to apply a union of the at least part of the first subframe partitioning configuration and the at least part of the second subframe partitioning configuration to the at least one of the first serving cell or the second serving cell.

5. The node of claim 1, wherein the node is further configured to apply an intersection of the at least part of the first subframe partitioning configuration and the at least part of the second subframe partitioning configuration to the at least one of the first serving cell or the second serving cell.

6. The node of claim 1, wherein the node is further configured to limit the application of the at least part of the first subframe partitioning configuration and the at least part of the second subframe partitioning configuration to an uplink (UL) subframe configuration of the at least one of the first serving cell or the second serving cell.

7. The node of claim 1, wherein the node is further configured to limit the application of the at least part of the first subframe partitioning configuration and the at least part of the second subframe partitioning configuration to a downlink (DL) subframe configuration of the at least one of the first serving cell or the second serving cell.

8. The node of claim 2, wherein the at least a part of the first subframe partitioning configuration and the at least a part of the second subframe partitioning configuration respectively include uplink (UL) subframe partitioning configurations, and the node is further configured to apply the respective UL subframe partitioning configurations to an UL subframe configuration of the Pcell.

9. The node of claim 1, wherein the first subframe partitioning configuration and the second subframe partitioning configuration is provided from a second node via a radio resource control (RRC) signal, the second node being in communication with the wireless communication system, and the second node being at least one of an evolved-Node B (eNB) or a donor evolved-Node B (DeNB).

10. The node of claim 9, wherein the node is a relay node.

11. The node of claim 10, wherein the node is further configured to communicate with the at least one of the eNB or DeNB via a Un interface.

12. The node of claim 1, wherein the node is a wireless transmit/receive unit (WTRU).

13. The node of claim 12, wherein the WTRU is further configured to operate in a Time-Division Duplexing mode.

14. A node, the node in communication with a wireless communication system, the node configured, at least in part, to:

communicate with at least a first serving cell and a second serving cell, the first serving cell being a primary serving cell (Pcell) and the second serving cell being a secondary serving cell (Scell);

receive a first subframe partitioning configuration for the Pcell;

receive a second subframe partitioning configuration for the Scell; and

transmit at least a portion of uplink control information (UCI) via a subframe of a Physical Uplink Control Channel (PUCCH) of the Scell based on a condition, the condition based at least in part on at least one of the first subframe partitioning configuration or the second subframe partitioning configuration.

15. The node of claim 14, wherein the condition includes the first subframe partitioning configuration for the Pcell having a restricted uplink in a subframe corresponding to the subframe of the Physical Uplink Control Channel (PUCCH) of the Scell.

16. The node of claim 14, wherein node is further configured to transmit the at least a portion of the UCI to at least one of an evolved-Node B (eNB) or a donor evolved-Node B (DeNB).

17. A node, the node in communication with a wireless communication system, the node configured, at least in part, to:

communicate with at least a first serving cell and a second serving cell, the first serving cell being a primary serving cell (Pcell) and the second serving cell being a secondary serving cell (Scell);

receive a subframe partitioning configuration for the Pcell; and

transmit at least a portion of uplink control information (UCI) via a subframe of a Physical Uplink Control Channel (PUCCH) of the Scell, the Scell having no subframe partitioning configuration.

18. A node, the node in communication with a wireless communication system, the node configured, at least in part, to:

communicate with a first component carrier and a second component carrier;

receive a first subframe partitioning configuration for the first component carrier;

receive a second subframe partitioning configuration for the second component carrier, the first subframe partitioning configuration being different than the second subframe partitioning configuration; and

implement cross-carrier scheduling between the first component carrier and the second component carrier utilizing a timing offset value.

19. The node of claim 18, wherein the node is further configured to:

receive downlink control information (DCI), the timing offset value being provided within the DCI; and

implement the cross-carrier scheduling on a downlink (DL) control channel, the timing offset value representing a number of subframes between a subframe of a scheduled downlink transmission and a subframe in which the node received the DCI.

20. The node of claim 18, wherein the node is further configured to:

receive downlink control information (DCI) on a downlink (DL) control channel, the timing offset value being provided within the DCI, the timing offset value representing a number of subframes between a subframe of a scheduled uplink transmission and a subframe in which the node received the DCI, the DL control channel being at least one of a Relay-Physical Downlink Control Channel (R-PDCCH) or a Physical Downlink Control Channel (PDCCH).