Cross-carrier scheduling
To effectively and efficiently provide control information, a broadcast pointer channel (BPCH) may be used to identify the type and perhaps relative location of control information that is being provided in a given frame structure, such as a sub-frame, frame, or superframe. A sub-frame (or like framing entity, such a frame or superframe) may have a BPCH and a corresponding system control information segment in which control information may reside. The system control information segment may have any number of control information blocks, wherein each control information block that is present may correspond to a particular type of control information. The BPCH is used to identify the type of control information that is present in a corresponding system control information segment, and if needed or desired, the relative locations of the various control information.
1. A mobile station comprising:
one or more antennas; and
a transceiver coupled to the one or more antennas, and configured to receive signals on a plurality of carriers, wherein the transceiver is further configured to:
read resource allocation information and a carrier identifier from a first carrier of the carriers, wherein the carrier identifier indicates a second carrier of the carriers, wherein the resource allocation information indicates resources allocated for the mobile station in a particular resource partition of the second carrier;
recover transmitted data from the particular resource partition of the second carrier using the resource allocation information.
2. The mobile station of claim 1 , wherein the transceiver is further configured to:
read resource partitioning information for the second carrier, wherein the resource partitioning information defines a plurality of partitions of the second carrier, wherein the plurality of partitions includes the particular resource partition.
3. The mobile station of claim 1 , wherein each of the carriers includes synchronization channels.
4. The mobile station of claim 1 , wherein the transceiver is further configured to:
for one or more of the carriers, measure channel quality information (CQI) of the carrier, and transmit the CQI to a base station.
5. The mobile station of claim 1 , wherein the transceiver is further configured to:
measure channel quality information (CQI) of the second carrier; and
transmit the CQI on the second carrier to a base station.
6. The mobile station of claim 1 , wherein the transceiver is configured to transmit a first channel quality information on the first carrier and transmit a second channel quality information on the second carrier, wherein the first channel quality information is quality information for the first carrier, wherein the second channel quality information is quality information for the second carrier.
7. The mobile station of claim 1 , wherein the transceiver is further configured to:
send ACK/NACK feedback to a base station on the second carrier, wherein said ACK/NACK feedback indicates positive or negative acknowledgement of receipt of the transmitted data from said resources of the particular resource partition.
8. The mobile station of claim 1 , wherein the transceiver is further configured to:
monitor only one of the carriers when the mobile station is in an idle mode.
9. The mobile station of claim 1 , wherein the transceiver is configured to:
for a retransmission of data:
read a second carrier identifier from the first carrier, wherein the second carrier identifier identifies a given one of the plurality of carriers; and
read one or more HARQ retransmissions of the transmitted data from the given carrier.
10. The mobile station of claim 1 , wherein said reading the resource allocation information and the carrier identifier includes reading the resource allocation information and the carrier identifier from a unicast message on the first carrier.
11. The mobile station of claim 1 , wherein the first carrier carries system-wide static physical-layer control information, wherein the second carrier does not carry system-wide static physical-layer control information.
12. A method for operating a mobile station, wherein the mobile station is configured to receive signals on a plurality of carriers, the method comprising:
reading, by the mobile station, resource allocation information and a carrier identifier from a first carrier of the carriers, wherein the carrier identifier indicates a second carrier of the carriers, wherein the resource allocation information indicates resources allocated for the mobile station in a particular resource partition of the second carrier;
recovering, by the mobile station, transmitted data from the particular resource partition of the second carrier using the resource allocation information.
13. The method of claim 12 , further comprising:
reading resource partitioning information for the second carrier, wherein the resource partitioning information defines a plurality of partitions of the second carrier, wherein the plurality of partitions includes the particular resource partition.
14. The method of claim 12 , wherein each of the carriers includes synchronization channels.
15. The method of claim 12 , further comprising:
for one or more of the carriers, measure channel quality information (CQI) of the carrier, and transmit the CQI to a base station.
16. The method of claim 12 , further comprising:
measuring channel quality information (CQI) of the second carrier; and
transmitting the CQI on the second carrier to a base station.
17. A non-transitory memory medium for operating a mobile station that is configured to receive signals on a plurality of carriers, wherein the memory medium stores program instructions, wherein the program instructions, when executed by a processor, cause the processor to implement:
reading, by the mobile station, resource allocation information and a carrier identifier from a first carrier of the carriers, wherein the carrier identifier indicates a second carrier of the carriers, wherein the resource allocation information indicates resources allocated for the mobile station in a particular resource partition of the second carrier;
recovering, by the mobile station, transmitted data from the particular resource partition of the second carrier using the resource allocation information.
18. The memory medium of claim 17 , wherein the program instructions, when executed by the processor, cause the processor to further implement:
reading resource partitioning information for the second carrier, wherein the resource partitioning information defines a plurality of partitions of the second carrier, wherein the plurality of partitions includes the particular resource partition.
19. The memory medium of claim 17 , wherein each of the carriers includes synchronization channels.
20. The memory medium of claim 17 , wherein the program instructions, when executed by the processor, cause the processor to further implement:
for one or more of the carriers, measure channel quality information (CQI) of the carrier, and transmit the CQI to a base station.