Method and system for single antenna receiver system for WCDMA
View Patent ↗Aspects of a method and system for a single antenna receiver system for W-CDMA are provided and may comprise computing channel estimates based on received multipath signals. Timing correction signals indicating a location of the received multipath signals may be generated and the received multipath signals may be combined based on the computed channel estimates and/or the generated timing reference signals. The multipath signals may be combined as a signal cluster. Circuitry may be provided that computes channel estimates based on at least one of a plurality of received multipath signals, and generates timing reference signals indicating a location of at least one of the plurality of received multipath signals. Circuitry may also be provided that combines at least a portion of the plurality of received multipath signals based on at least a portion of the computed channel estimates and/or the generated timing reference signals.
1. A method for processing radio frequency (RF) signals, the method comprising:
receiving a plurality of chip-level data items via a plurality of received multipath signals;
generating channel estimates and timing reference signals utilizing said plurality of received chip-level data items;
generating one or more combined chip-level data items by combining at least a portion of said plurality of received chip-level data items based on said generated channel estimates and said generated timing reference signals, wherein each of said plurality of chip-level data items corresponds to one of a plurality of rake receiver fingers; and
generating each of a plurality of symbol-level data items by despreading a corresponding one of said generated one or more combined chip-level data items.
2. The method according to claim 1 , comprising processing said plurality of received multipath signals as a signal cluster during said combining.
3. The method according to claim 1 , comprising generating said each of said plurality of symbol-level data items by utilizing one or more generated despreading codes.
4. The method according to claim 3 , comprising combining at least a portion of said plurality of symbol-level data items.
5. The method according to claim 4 , comprising combining said at least a portion of said plurality of symbol-level data items when said plurality of received multipath signals are received from a plurality of base transceiver stations.
6. The method according to claim 4 , comprising:
determining whether said combined at least a portion of said plurality of symbol-level data items comprise voice communications information or data communications information;
decoding said combined at least a portion of said plurality of symbol-level data items by utilizing convolutional decoding when said combined at least a portion of said plurality of symbol-level data items comprise voice communications information; and
decoding said combined at least a portion of said plurality of symbol-level data items by utilizing turbo decoding when said combined at least a portion of said plurality of symbol-level data items comprise data communications information.
7. The method according to claim 1 , comprising computing said channel estimates based on at least one of said plurality of received multipath signals prior to said combining.
8. The method according to claim 7 , comprising generating said timing reference signals that indicate a location for said at least one of said plurality of received multipath signals.
9. The method according to claim 8 , comprising combining said at least a portion of said plurality of received chip-level data items based on said computed channel estimates and said generated timing reference signals.
10. The method according to claim 8 , wherein each of said plurality of received multipath signals is received at a distinct time instant.
11. The method according to claim 10 , comprising determining each said distinct time instant based on said generated timing reference signals.
12. A system for processing RF signals, the system comprising:
one or more circuits comprising at least one cluster path processor and a maximum ratio combining processor, said one or more circuits enable reception of a plurality of chip-level data items via a plurality of received multipath signals;
said one or more circuits enable generation of channel estimates and timing reference signals utilizing said plurality of received chip-level data items;
said one or more circuits enable generation of one or more combined chip-level data items by combining at least a portion of said plurality of received chip-level data items based on said generated channel estimates and said generated timing reference signals, wherein each of said plurality of chip-level data items corresponds to one or a plurality of rake receiver fingers; and
said one or more circuits enable generation of each of a plurality of symbol-level data items by despreading a corresponding one of said generated one or more combined chip-level data items.
13. The system according to claim 12 , wherein said one or more circuits enable processing of said plurality of received multipath signals as a signal cluster during said combining.
14. The system according to claim 12 , wherein said one or more circuits comprising a despreader, and wherein said one or more circuits enable generation of said each of said plurality of symbol-level data items by utilizing one or more generated despreading codes.
15. The system according to claim 14 , wherein said one or more circuits comprising a diversity processor, and wherein said one or more circuits enable combination of at least a portion of said plurality of symbol-level data items.
16. The system according to claim 15 , wherein said one or more circuits comprising a macrocell combiner, and wherein said one or more circuits enable combination of said at least a portion of said plurality of symbol-level data items when said plurality of received signals are received from a plurality of base transceiver stations.
17. The system according to claim 15 , wherein said one or more circuits enable:
determination of whether said combined at least a portion of said plurality of symbol-level data items comprise voice communications information or data communications information;
decoding of said combined at least a portion of said plurality of symbol-level data items by utilizing convolutional decoding when said combined at least a portion of said plurality of symbol-level data items comprise voice communications information; and
decoding of said combined at least a portion of said plurality of symbol-level data items by utilizing turbo decoding when said combined at least a portion of said plurality of symbol-level data items comprise data communications information.
18. The system according to claim 12 , wherein said one or more circuits enable computation of said channel estimates based on at least one of said plurality of received multipath signals prior to said combining.
19. The system according to claim 18 , wherein said one or more circuits enable generation of said timing reference signals that indicate a location for said at least one of said plurality of received multipath signals.
20. The system according to claim 19 , wherein said one or more circuits enable combination of said at least a portion of said plurality of received chip-level data items based on said computed channel estimates and said generated timing reference signals.
21. The system according to claim 19 , wherein each of said plurality of received multipath signals is received at a distinct time instant.
22. The system according to claim 21 , wherein said one or more circuits enable determination of each said distinct time instant based on said generated timing reference signals.