DUAL MODE RADIO FOR FREQUENCY DIVISION DUPLEXING AND TIME DIVISION DUPLEXING COMMUNICATION MODES

• US 20130343244A1
• Filed: 08/30/2013
• Published: 12/26/2013
• Est. Priority Date: 05/12/2009
• Status: Active Grant

• Current Assignee: AirHop Communications, Inc.
• Original Assignee: AirHop Communications, Inc.
• Inventors: Hui, Yan, On, Hanson, Park, Edwin
• Granted Patent: US 9,432,137 B2
• Time in Patent Office: Days
• US Class Current: 370/280
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04J 4/00 Combined time-division and frequency-division multiplex systems H04J13/00 takes precedence ; data transmission H04L5/26; telemetry G08C15/00
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

Dual mode radio for frequency division duplexing and time division duplexing communication modes. In some embodiments, dual mode radio for frequency division duplexing and time division duplexing communication modes includes a multi-mode communication unit for wireless communication, in which the multi-mode communication unit allocates access for a time based communication mode and a frequency based communication mode; and a processor configured to implement at least in part the multi-mode communication unit. In some embodiments, the time based communication mode includes a time division duplexing (TDD) communication mode, and the frequency based communication mode includes a frequency division duplexing (FDD) communication mode.

Claims

1. A system, comprising:

a multi-mode communication unit for wireless communication, wherein the multi-mode communication unit allocates access for a time based communication mode and a frequency based communication mode;

a first RF/analog front end, wherein the multi-mode communication unit using the time based communication mode is provided at least in part using the first RF/analog front end;

a second RF/analog front end, wherein the multi-mode communication unit using the frequency based communication mode is provided at least in part using the second RF/analog front end; and

a processor configured to implement at least in part the multi-mode communication unit,

wherein the multi-mode communication unit allocates access for communication by operating a TDD Downlink (TDD DL) communication mode and a TDD Uplink (TDD UL) communication mode in an FDD Uplink (FDD UL) carrier frequency, using a first carrier is frequency for FDD UL and TDD DL/UL, and using a second carrier frequency for FDD Downlink (FDD DL).

2. The system recited in claim 1, wherein the time based communication mode includes a time division duplexing (TDD) communication mode, and the frequency based communication mode includes a frequency division duplexing (FDD) communication mode.

3. The system recited in claim 1, wherein the time based communication mode includes a time division duplexing (TDD) communication mode for a 3GPP Long Term Evolution (LTE) standard, and the frequency based communication mode includes a frequency division duplexing (FDD) communication mode for a 3GPP Long Term Evolution (LTE) standard.

4. The system recited in claim 1, wherein the processor implements the multi-mode communication unit.

5. The system recited in claim 1, wherein the processor is a digital processor, and wherein the digital processor implements the multi-mode communication unit.

6. The system recited in claim 1, wherein the multi-mode communication unit includes a plurality of executable instructions for allocating access for communication using the time based communication mode and the frequency based communication mode, and wherein the processor is configured to execute the multi-mode communication unit.

7. The system recited in claim 1, wherein the multi-mode communication unit further comprises:

a dual mode radio in communication with the multi-mode communication unit, wherein the dual mode radio communicates using the time based communication mode and the frequency based communication mode.

8. The system recited in claim 1, further comprising:

an RF/analog front end in communication with the multi-mode communication unit, to wherein the multi-mode communication is provided at least in part using the RF/analog front end.

9. The system recited in claim 1, further comprising:

a first RF/analog front end receiver, wherein the multi-mode communication for the time based communication mode is received using at least in part the first RF/analog front end;

a second RF/analog front end receiver, wherein the multi-mode communication for the frequency based communication mode is received using at least in part the second RF/analog front end; and

a shared RF/analog front end transmitter, wherein the multi-mode communication for the frequency based communication mode and the time based communication mode is transmitted using at least in part the shared RF/analog front end transmitter.

10. The system recited in claim 1, further comprising:

a shared RF/analog front end receiver, wherein the multi-mode communication for the frequency based communication mode and the time based communication mode is received using at least in part the shared RF/analog front end receiver;

a first RF/analog front end transmitter, wherein the multi-mode communication for the time based communication mode is transmitted using at least in part the first RF/analog front end transmitter; and

a second RF/analog front end transmitter, wherein the multi-mode communication for the frequency based communication mode is transmitted using at least in part the second RF/analog front end transmitter.

11. The system recited in claim 1, further comprising:

a first RF/analog front end receiver, wherein the multi-mode communication for the time based communication mode is received using at least in part the first RF/analog front end receiver;

a second RF/analog front end receiver, wherein the multi-mode communication for the frequency based communication mode is received using at least in part the second RF/analog front end receiver;

a first RF/analog front end transmitter, wherein the multi-mode communication for the time based communication mode is transmitted using at least in part the first RF/analog front end transmitter; and

a second RF/analog front end transmitter, wherein the multi-mode communication for the frequency based communication mode is transmitted using at least in part the second RF/analog front end transmitter.

12. The system recited in claim 1, further comprising:

a first RF/analog front end receiver, wherein the multi-mode communication for the time is based communication mode is received using at least in part the first RF/analog front end receiver;

a second RF/analog front end receiver, wherein the multi-mode communication for the frequency based communication mode is received using at least in part the second RF/analog front end receiver; and

a first RF/analog front end transmitter, wherein the multi-mode communication for the time based communication mode is transmitted using at least in part the first RF/analog front end transmitter; and

a second RF/analog front end transmitter, wherein the multi-mode communication for the frequency based communication mode is transmitted using at least in part the second RF/analog front end transmitter;

wherein the frequency based communication mode includes a frequency based uplink communication mode and a frequency based downlink communication mode, and the time based communication mode and the frequency based uplink communication mode share a common carrier frequency and are communicated using a time division multiplexing (TDM) frame structure.

13. The system recited in claim 1, further comprising:

a first RF/analog front end receiver, wherein the multi-mode communication for the time based communication mode is received using at least in part the first RF/analog front end receiver;

a second RF/analog front end receiver, wherein the multi-mode communication for the frequency based communication mode is received using at least in part the second RF/analog front end receiver; and

a first RF/analog front end transmitter, wherein the multi-mode communication for the time based communication mode is transmitted using at least in part the first RF/analog front end transmitter; and

a second RF/analog front end transmitter, wherein the multi-mode communication for the to frequency based communication mode is transmitted using at least in part the second RF/analog front end transmitter;

wherein the frequency based communication mode includes a frequency based uplink communication mode and a frequency based downlink communication mode, and the time based communication mode and the frequency based uplink communication mode share a common carrier frequency and are communicated using a time division multiplexing (TDM) frame structure.

14. The system recited in claim 1, further comprising:

a tunable receiver in communication with the multi-mode communication unit, wherein the multi-mode communication for the frequency based communication mode and the time based communication mode is received using at least in part the tunable receiver; and

a tunable transmitter in communication with the multi-mode communication unit, wherein the multi-mode communication for the frequency based communication mode and the time based communication mode is transmitted using at least in part the tunable transmitter.

15. The system recited in claim 1, further comprising:

a tunable receiver in communication with the multi-mode communication unit, wherein the multi-mode communication for the frequency based communication mode and the time based communication mode is received using at least in part the tunable receiver, and wherein the tunable receiver is tunable to a first frequency and a second frequency; and

a tunable transmitter in communication with the multi-mode communication unit, wherein the multi-mode communication for the frequency based communication mode and the time based communication mode is transmitted using at least in part the tunable transmitter, and wherein the tunable transmitter is tunable to a first frequency and a second frequency.

16. The system recited in claim 1, further comprising:

an antenna in communication with the multi-mode communication unit.

17. The system recited in claim 1, further comprising:

an antenna in communication with the multi-mode communication unit, wherein the multi-mode communication is provided at least in part using the antenna, wherein the antenna is shared for providing the multi-mode communication using the frequency based communication mode and the time based communication mode.

18. The system recited in claim 1, wherein the multi-mode communication unit allocates access for communication using the frequency based communication mode and the time based communication mode based on a scheduling function.

19. The system recited in claim 1, wherein the multi-mode communication unit allocates access for communication using the frequency based communication mode and the time based communication mode based on a scheduling function to optimize capacity usage based on one or more criteria.

20. The system recited in claim 1, wherein the multi-mode communication unit allocates access for communication using the frequency based communication mode and the time based communication mode based on a scheduling function, and wherein the scheduling function includes one or more of the following:

proportional fairness, round robin, maximum throughput, time multiplex function, a spatial multiplex function, a time reuse function, and a frequency reuse function.

21. The system recited in claim 1, wherein the multi-mode communication unit allocates access for communication using the frequency based communication mode and the time based communication mode using at least two frequency bands, wherein the at least two frequency bands are overlapping, and wherein a first frequency band can be a subset and/or a superset of a second frequency band.

22. The system recited in claim 1, wherein the system is a multi-mode device, wherein the multi-mode device is selected from one or more of the following:

a terminal, a base station, and a repeater.

23. The system recited in claim 1, wherein the system is a multi-mode device, wherein the multi-mode device is a terminal, and wherein the terminal is selected from one or more of the following:

a mobile phone, UE, Datacard, broadcast receiver, and broadcast transmitter.

24. The system recited in claim 1, wherein the system is a multi-mode device, wherein the multi-mode device communicates with other multi-mode devices in a peer-to-peer wireless communication network, wireless backhaul, or relay using time division duplexing (TDD) frames.

25. The system recited in claim 1, wherein the system is a multi-mode device, wherein the multi-mode device is a base station, wherein the base station is selected from one or more of the following:

a cellular base station, a microcell base station, a Microcell base station, a Pico cell base station, a Femto cell base station, an Access Point (AP), a Set Top Box (STB), a Home Gateway, a Hot Spot Device, a User Terminal, a repeater, a relay, and a WiFi.

26. The system recited in claim 1, wherein the system includes a repeater, and wherein the repeater operates as a terminal and as a base station.

27. The system recited in claim 1, wherein the multi-mode communication unit is communicates using a protocol, and wherein the protocol includes one or more of the following:

LTE, WiMax, HSPA, CDMA2000/1xEVDO, TD-SCDMA, and WiFi.

28. The system recited in claim 1, wherein a wireless backhaul subframe or a wireless peer-to-peer subframe is located directly adjacent to the TDD DL subframe.

29. The system recited in claim 1, wherein a guard band subframe, using the first carrier frequency, is between a TDD DL subframe and a TDD UL subframe.

30. The system recited in claim 1, wherein within the first carrier frequency, using a TDM frame structure to separate FDD UL communications from TDD DL and TDD UL communications.

31. A system, comprising:

a processor comprising;

a multi-mode communication unit, wherein the multi-mode communication unit allocates access for a time based communication mode and a frequency based communication mode;

a first RF/analog front end, wherein the multi-mode communication unit using the time based communication mode is provided at least in part using the first RF/analog front end;

a second RF/analog front end, wherein the multi-mode communication unit using the frequency based communication mode is provided at least in part using the second RF/analog front end; and

a communication interface coupled to the processor and configured to provide the communication interface with instructions,

wherein the multi-mode communication unit allocates access for communication by operating a TDD Downlink (TDD DL) communication mode and a TDD Uplink (TDD UL) communication mode in an FDD Uplink (FDD UL) carrier frequency, using a first carrier frequency for FDD UL and TDD DL/UL, and using a second carrier frequency for FDD Downlink (FDD DL).

32. A method, comprising:

executing a multi-mode communication unit, wherein the multi-mode communication unit allocates access for a time based communication mode and a frequency based communication mode, and wherein the multi-mode communication unit allocates access for communication using the time based communication mode and the frequency based communication mode based on a scheduling function to coordinate transmissions using a shared RF front end;

executing a first RF/analog front end, wherein the multi-mode communication unit using the time based communication mode is provided at least in part using the first RF/analog front end;

executing a second RF/analog front end, wherein the multi-mode communication unit using the frequency based communication mode is provided at least in part using the second RF/analog front end; and

executing radio resource manager, wherein the radio resource manager performs at least in part the allocation of access to the shared RF front end for communication using the time based communication mode and the frequency based communication mode,

wherein the multi-mode communication unit allocates access for communication by operating a TDD Downlink (TDD DL) communication mode and a TDD Uplink (TDD UL) communication mode in an FDD Uplink (FDD UL) carrier frequency, using a first carrier frequency for FDD UL and TDD DL/UL, and using a second carrier frequency for FDD Downlink (FDD DL).

33. A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:

executing a multi-mode communication unit, wherein the multi-mode communication unit allocates access for a time based communication mode and a frequency based communication mode;

executing a first RF/analog front end, wherein the multi-mode communication unit using the time based communication mode is provided at least in part using the first RF/analog front end;

executing a second RF/analog front end, wherein the multi-mode communication unit to using the frequency based communication mode is provided at least in part using the second RF/analog front end; and

executing radio resource manager, wherein the radio resource manager performs at least in part the allocation of access for communication using the time based communication mode and the frequency based communication mode,

wherein the multi-mode communication unit allocates access for communication by operating a TDD Downlink (TDD DL) communication mode and a TDD Uplink (TDD UL) communication mode in an FDD Uplink (FDD UL) carrier frequency, using a first carrier frequency for FDD UL and TDD DL/UL, and using a second carrier frequency for FDD Downlink (FDD DL).