PILOT GROUPING AND ROUTE PROTOCOLS IN MULTI-CARRIER COMMUNICATION SYSTEMS

• US 20140269616A1
• Filed: 12/16/2013
• Published: 09/18/2014
• Est. Priority Date: 09/22/2005
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Black, Peter John
• Application Number:
  US14/108,055
• Publication Number:
  US 20140269616A1
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 27/261 Details of reference signals
• CPC Class Codes: H04L 27/2613 Structure of the reference signals
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 36/0069 in case of dual connectivity, e.g. decoupled uplink/downlink
• CPC Class Codes: H04W 36/185 using make before break
• CPC Class Codes: H04W 74/04 Scheduled access hybrid access H04W74/02

Abstract

Embodiments disclosed herein relate to methods and systems for pilot grouping, route protocols, and scheduling in multi-carrier communication systems. In an embodiment, an access terminal may group a plurality of pilot signals characterized by different frequencies into one or more pilot groups, each pilot grouping being identified by a plurality of parameters (e.g., a PN offset and a group ID). Each pilot group may include pilot signals having substantially the same coverage area. The access terminal may further select a representative pilot signal from each pilot group for pilot strength reporting. The access terminal may also use the pilot grouping for effective set management.

Claims

1. A method in a communication system, comprising:

receiving a message indicating a plurality of forward link channels each carrying reverse link-related information for each of reverse link channels associated with an access terminal; and

assigning one of the reverse link channels to carry forward link-related information associated with at least one of the forward link channels.

2. The method of claim 1, wherein the forward link-related information includes at least one of a cell selection, a sector selection, an automatic repeat request (ARQ) acknowledgment (ACK), and a signal-to-noise-and-interference (C/I) feedback.

3. The method of claim 1, wherein the reverse link-related information includes a reverse power control (RPC) bit stream.

4. The method of claim 1, further comprising monitoring a control channel carried by one of the forward link channels.

5. An apparatus adapted for multi-carrier communications, comprising:

means for receiving a message indicating a plurality of forward link channels each carrying reverse link-related information for each of reverse link channels associated with an access terminal; and

means for assigning one of the reverse link channels to carry forward link-related information associated with at least one of the forward link channels.

6. The apparatus of claim 5, wherein the forward link-related information includes at least one of a cell selection, a sector selection, an automatic repeat request (ARQ) acknowledgment (ACK), and a signal-to-noise-and-interference (C/I) feedback

7. The apparatus of claim 5, wherein the reverse link-related information includes a reverse power control (RPC) bit stream.

8. The apparatus of claim 5, further comprising means for monitoring a control channel carried by one of the forward link channels.

9. A method in a multi-carrier communication system, comprising:

grouping a plurality of pilot signals into one or more scheduler groups in accordance with sequence numbers of the pilot signals, the pilot signals characterized by a plurality of frequencies; and

associating each scheduler group with a transmission queue.

10. The method of claim 9, wherein each scheduler group includes one or more pilot signals having a same sequence number.

11. The method of claim 10, wherein the sequence number is associated with detecting gaps in a received data packet.

12. The method of claim 9, wherein each scheduler group includes one or more pilot signals associated with a sub-active set of an access terminal.

13. The method of claim 12, wherein the pilot signals in each scheduler group are associated with a plurality of sectors in softer handoff.

14. An apparatus adapted for multi-carrier communications, comprising:

means for grouping a plurality of pilot signals into one or more scheduler groups in accordance with sequence numbers of the pilot signals, the pilot signals characterized by a plurality of frequencies; and

means for associating each scheduler group with a transmission queue.

15. The apparatus of claim 14, wherein each scheduler group includes one or more pilot signals having a same sequence number.

16. The apparatus of claim 15, wherein the sequence number is associated with detecting gaps in a received data packet.

17. The apparatus of claim 14, wherein each scheduler group includes one or more pilot signals associated with a sub-active set of an access terminal

18. The apparatus of claim 17, wherein the pilot signals in each scheduler group are associated with a plurality of sectors in softer handoff.