SCHEDULING BASED ON SIGNAL QUALITY MEASUREMENTS

• US 20150085686A1
• Filed: 09/25/2014
• Published: 03/26/2015
• Est. Priority Date: 09/26/2013
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: CHANDE, Vinay, PATEL, Chirag Sureshbhai, KADOUS, Tamer Adel
• Application Number:
  US14/496,913
• Publication Number:
  US 20150085686A1
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

Systems and methods for resource coordination and management in a communication environment are disclosed. The resource coordination and management may comprise, for example: transmitting channel and interference measurement signals over a plurality of resources; receiving link signal quality measurements that are based on the transmission of the channel and interference measurement signals over the plurality of resources; exchanging link signal quality measurement information with at least one apparatus, wherein the exchange of the link signal quality measurement information comprises sending information based on the received link signal quality measurements; and determining a data transmission schedule based on the exchange of the link signal quality measurement information.

Claims

1. A method of communication, comprising:

transmitting channel and interference measurement signals over a plurality of resources;

receiving link signal quality measurements that are based on the transmission of the channel and interference measurement signals over the plurality of resources;

exchanging link signal quality measurement information with at least one apparatus, wherein the exchange of the link signal quality measurement information comprises sending information based on the received link signal quality measurements; and

determining a data transmission schedule based on the exchange of the link signal quality measurement information.

2. The method of claim 1, further comprising coordinating with the at least one apparatus to identify the plurality of resources.

3. The method of claim 2, wherein coordinating with the at least one apparatus comprises exchanging messages via a wired or wireless interface or exchanging messages via an operations, administration, and management entity.

4. The method of claim 3, wherein exchanging messages via the wired or wireless interface comprises exchanging a measurement coordination message via the wired or wireless interface.

5. The method of claim 2, wherein coordinating with the at least one apparatus comprises:

sending an indication of resources being used by an access point; and

receiving at least one indication of resources being used by at least one other access point.

6. The method of claim 2, wherein coordinating with the at least one apparatus comprises exchanging messages that indicate at least one of:

positions of the plurality of resources, periodicity associated with the plurality of resources, transmit power associated with the plurality of resources, or combinations thereof.

7. The method of claim 1, wherein the plurality of resources comprises at least one of:

cell specific reference signal (CRS) resources, channel state information reference signal (CSI-RS) resources, interference management resources (IMR), or combinations thereof.

8. The method of claim 1, wherein the link signal quality measurement information comprises at least one of:

a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator (RI), a reference signal received power (RSRP) indicator, or combinations thereof.

9. The method of claim 8, wherein the CQI, PMI, or RI measurement information is obtained for one or more configurations of the plurality of resources for one or more cells.

10. The method of claim 8, wherein the RSRP indicator corresponds to one or more cells.

11. The method of claim 1, further comprising:

exchanging, in conjunction with the exchange of the link signal quality measurement information, configurations of channel and interference measurement signals determined through coordination with the at least one apparatus,

wherein the determination of the data transmission schedule is further based on the exchanged configurations.

12. The method of claim 1, wherein:

the link signal quality measurement information is derived from reference signal received power (RSRP) information;

the method further comprises exchanging, in conjunction with the exchange of the link signal quality measurement information, indications of access point conditions used to derive link signal quality; and

the determination of the data transmission schedule is further based on the exchanged indications.

13. The method of claim 1, further comprising:

exchanging, in conjunction with the exchange of the link signal quality measurement information, ancillary information comprising at least one of;

access terminal rate information, access terminal throughput information, queue size information, backhaul bandwidth information, access terminal QoS requirements, or combinations thereof,

wherein the determination of the data transmission schedule is further based on the exchanged ancillary information.

14. The method of claim 1, wherein:

the received link signal quality measurements comprise measurements of reference signal power received at at least one access terminal for the at least one apparatus;

the method further comprises deriving channel quality information from the received link signal quality measurements; and

the information based on the received link signal quality measurements comprises the derived channel quality information.

15. The method of claim 1, further comprising processing the received link signal quality measurements, wherein the information based on the received link signal quality measurements comprises the processed received link signal quality measurements.

16. The method of claim 1, further comprising receiving at least one other data transmission schedule from the at least one apparatus, wherein the determination of the data transmission schedule is further based on the received at least one other data transmission schedule.

17. The method of claim 1, wherein exchanging the link signal quality measurement information comprises exchanging messages via a wired or wireless interface.

18. The method of claim 17, wherein exchanging messages via the wired or wireless interface comprises exchanging a link quality message via the wired or wireless interface.

19. The method of claim 1, wherein determining the data transmission schedule comprises defining the data transmission schedule.

20. The method of claim 19, further comprising sending the defined data transmission schedule to the at least one apparatus.

21. The method of claim 20, wherein sending the defined data transmission schedule comprises sending messages via a wired or wireless interface.

22. The method of claim 21, wherein sending messages via the wired or wireless interface comprises sending a scheduling coordination message via the wired or wireless interface.

23. The method of claim 1, wherein determining the data transmission schedule comprises receiving the data transmission schedule.

24. The method of claim 23, wherein receiving the data transmission schedule comprises receiving messages via a wired or wireless interface.

25. The method of claim 24, wherein receiving messages via the wired or wireless interface comprises receiving a scheduling coordination message via the wired or wireless interface.

26. The method of claim 1, wherein the determined data transmission schedule indicates at least one of:

access point transmit timing, access point transmit power, transmit power for particular time and frequency resources, simultaneous use of resources, and combination thereof.

27. An apparatus for communication, comprising:

a transmitter configured to transmit channel and interference measurement signals over a plurality of resources;

a receiver configured to receive link signal quality measurements that are based on the transmission of the channel and interference measurement signals over the plurality of resources;

a wired or wireless transceiver configured to exchange link signal quality measurement information with at least one other apparatus, wherein the exchange of the link signal quality measurement information comprises sending information based on the received link signal quality measurements; and

a processor configured to determine a data transmission schedule based on the exchange of the link signal quality measurement information.

28. The apparatus of claim 27, wherein:

the processor is further configured to coordinate with the at least one apparatus to identify the plurality of resources; and

the wired or wireless transceiver is further configured to support the coordination with the at least one apparatus by exchanging messages via a wired or wireless interface or exchanging messages via an operations, administration, and management entity.

29. The apparatus of claim 27, wherein the wired or wireless transceiver is further configured to:

exchange, in conjunction with the exchange of the link signal quality measurement information, configurations of channel and interference measurement signals determined through coordination with the at least one apparatus,

wherein the determination of the data transmission schedule is further based on the exchanged configurations.

30. An apparatus for communication, comprising:

means for transmitting channel and interference measurement signals over a plurality of resources;

means for receiving link signal quality measurements that are based on the transmission of the channel and interference measurement signals over the plurality of resources;

means for exchanging link signal quality measurement information with at least one apparatus, wherein the exchange of the link signal quality measurement information comprises sending information based on the received link signal quality measurements; and

means for determining a data transmission schedule based on the exchange of the link signal quality measurement information.