Multi-carrier operation in data transmission systems

• US 20060274712A1
• Filed: 04/05/2006
• Published: 12/07/2006
• Est. Priority Date: 04/28/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Malladi, Durga Prasad, Montojo, Juan, Willenegger, Serge D.
• Granted Patent: US 7,961,700 B2
• Time in Patent Office: Days
• US Class Current: 370/345
• CPC Class Codes: H04B 1/70735 Code identification H04B1/7083 takes precedence
• CPC Class Codes: H04B 1/7083 Cell search, e.g. using a three-step approach
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

Multi-carrier point-to-multi-point CDMA system implementation reduces hardware changes in legacy single-carrier systems. The number of common downlink channels, such as timing/synchronization and paging channels, is reduced by designating an anchor carrier for transmitting these channels. Procedures for adding carriers and carrier acquisition are simplified through common carrier timing, signaling by the network to the user equipment (UE) of timing offsets and scrambling code selection, and other measures. Channel reuse is employed to minimize changes in asymmetric systems with different numbers of uplink and downlink carriers. Channel Quality Indicator (CQI) field is divided into multiple subfields to enable transmission of multiple CQIs and ACK/NACK indicators on one uplink carrier. Joint and separate scheduling schemes are shown for concurrent scheduling of a data stream transmission to a UE via multiple downlink carriers.

Claims

1. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

a receiver configured to receive from the base transceiver station data on a first downlink carrier and on a second downlink carrier, to determine values of a first channel quality indicator for the first downlink carrier, and to determine values of a second channel quality indicator for the second downlink carrier, one value of the first channel quality indicator per time slot, one value of the second channel quality indicator per time slot;

a transmitter configured to transmit on a first uplink carrier to the base transceiver station channel quality indicator values in a CQI field, one CQI field per time slot; and

a processing circuit coupled to the receiver and to the transmitter, the processing circuit being configured to encode the CQI field for each time slot of a first plurality of time slots with (1) a value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots, and (2) a value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots, so that the CQI field transmitted on the first uplink carrier conveys information regarding channel quality of the first downlink carrier and information regarding channel quality of the second downlink carrier for said each time slot of the first plurality of time slots.

2. The wireless user equipment device of claim 1, the processing circuit being further configured to obtain the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots by reducing resolution of the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots.

3. The wireless user equipment device of claim 2, the processing circuit being further configured to obtain the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots by computing a difference between (1) the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots, and (2) the value of the second channel quality indicator corresponding to a time slot immediately preceding said each time slot of the first plurality of time slots.

4. The wireless user equipment device of claim 3, wherein:

the processing circuit is further configured to encode the CQI field for each time slot of a second plurality of time slots with a value derived from the value of the first channel quality indicator corresponding to said each time slot of the second plurality of time slots, and a value derived from the value of the second channel quality indicator corresponding to said each time slot of the second plurality of time slots; and

time slots of the first plurality of time slots do not belong to the second plurality of time slots, and time slots of the second plurality of time slots do not belong to the first plurality of time slots.

5. The wireless user equipment device of claim 4, wherein the time slots of the first and second pluralities of time slots are interleaved.

6. The wireless user equipment device of claim 4, wherein the CQI field is five bits in length, the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots is three bits in length, and the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots is two bits in length.

7. The wireless user equipment device of claim 3, the processing circuit being further configured to encode the CQI field for said each time slot of the first plurality of time slots with an ACK/NAK acknowledgment value that corresponds to payload data received by the wireless user device from the base transceiver station on a downlink carrier.

8. The wireless user equipment device of claim 7, wherein the CQI field is five bits in length, the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots is three bits in length, the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots is one bit in length, and the ACK/NAK acknowledgement value is one bit in length.

9. The wireless user equipment device of claim 2, the processing circuit being further configured to

obtain the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots by reducing resolution of the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots;

and

encode the CQI field for said each time slot of the first plurality of time slots with an ACK/NAK acknowledgment value that corresponds to payload data received by the wireless user device from the base transceiver station on a downlink carrier.

10. The wireless user equipment device of claim 9, wherein the CQI field is five bits in length, the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots is two bits in length, the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots is two bits in length, and the ACK/NAK acknowledgement value is one bit in length.

11. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

a receiver configured to receive from the base transceiver station data on a plurality of downlink carriers, and to determine values of channel quality indicator for each downlink carrier of the plurality of downlink carriers;

a transmitter configured to transmit on a first uplink carrier to the base transceiver station channel quality indicator values in a CQI field, one CQI field per time slot; and

a processing circuit coupled to the receiver and to the transmitter, the processing circuit being configured to

select for each time slot a selected downlink carrier from the plurality of downlink carriers, each downlink carrier of the plurality of downlink carriers being selected once in a cycle period, and

encode the CQI field with the channel quality indicator of the selected downlink carrier for said each time slot.

12. The wireless user equipment device of claim 11, wherein the cycle period corresponds to the number of time slots equal to the number of downlink carriers in the plurality of downlink carriers.

13. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

a receiver configured to receive from the base transceiver station data on a plurality of downlink carriers, and to determine values of channel quality indicator for each downlink carrier of the plurality of downlink carriers;

a transmitter configured to transmit on a first uplink carrier to the radio network data in a FeedBack Indicator (FBI) field, one FBI field per time slot; and

a processing circuit coupled to the receiver and to the transmitter, the processing circuit being configured to encode the FBI field with at least a portion of a value of a channel quality indicator of a first downlink carrier selected from the plurality of downlink carriers.

14. The wireless user equipment device of claim 13, wherein:

the transmitter is further configured to transmit on the first uplink carrier to the base transceiver station network data in a CQI field, one CQI field per time slot; and

the processing circuit is further configured to encode the CQI field with a value of a channel quality indicator of a second downlink carrier selected from the plurality of downlink carriers.

15. A base transceiver station in a radio network, for communicating with a wireless user equipment device, the base transceiver station comprising:

a receiver configured to receive data from the wireless user equipment device on a first uplink carrier, the first uplink carrier including a channel with a CQI field;

a transmitter configured to transmit data to the wireless user equipment device on a first downlink carrier and on a second downlink carrier; and

a processor coupled to the receiver and to the transmitter, wherein the processor is configured to;

receive values in the CQI field, one received value in the CQI field per time slot,

adjust output power of the first downlink carrier in accordance with a first subfield of the received value in the CQI field in each time slot, and

adjust output power of the second downlink carrier in accordance with a second subfield of the received value in the CQI field in said each time slot.

16. The base transceiver station of claim 15, the processor being further configured to:

read a third subfield of the received value in the CQI field, and

if the third subfield has a first value, inform a radio network controller of the radio network that at least one packet sent on a downlink carrier to the wireless user equipment device has been successfully received by the wireless user equipment device.

17. The base transceiver station of claim 15, wherein:

the first uplink carrier includes a channel with a FeedBack Information (FBI) field;

the processor is further configured to inform a radio network controller of the radio network that at least one packet sent on a downlink carrier to the wireless user equipment device has been successfully received by the wireless user equipment device, if a third subfield of the FBI field has a first predetermined value.

18. A method of operating a wireless user equipment device for communicating with a base transceiver station of a radio network, the method comprising:

receiving from the base transceiver station data on a first downlink carrier and on a second downlink carrier;

determining values of a first channel quality indicator for the first downlink carrier, one value of the first channel quality indicator per time slot;

determining values of a second channel quality indicator for the second downlink carrier, one value of the second channel quality indicator per time slot;

transmitting on a first uplink carrier to the radio network channel quality indicator values in a CQI field, one CQI field per time slot; and

encoding the CQI field for each time slot of a first plurality of time slots with a value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots, and a value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots.

19. The method of claim 18, further comprising:

obtaining the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots by reducing resolution of the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots.

20. The method of claim 19, further comprising:

obtaining the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots by computing a difference between (1) the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots, and (2) the value of the second channel quality indicator corresponding to a time slot immediately preceding said each time slot of the plurality of time slots.

21. The method of claim 20, further comprising:

encoding the CQI field for each time slot of a second plurality of time slots with a value derived from the value of the first channel quality indicator corresponding to said each time slot of the second plurality of time slots, and a value derived from the value of the second channel quality indicator corresponding to said each time slot of the second plurality of time slots;

wherein time slots of the first plurality of time slots do not belong to the second plurality of time slots, and time slots of the second plurality of time slots do not belong to the first plurality of time slots.

22. The method of claim 21, wherein the time slots of the first and second pluralities of time slots are interleaved.

23. The method of claim 21, wherein the CQI field is five bits in length, the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots is three bits in length, and the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots is two bits in length.

24. The method of claim 20, further comprising:

encoding the CQI field for each time slot of the first plurality of time slots with an ACK/NAK acknowledgment value that corresponds to payload data received by the wireless user device from the radio network on a downlink carrier.

25. The method of claim 24, wherein the CQI field is five bits in length, the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots is three bits in length, the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots is one bit in length, and the ACK/NAK acknowledgement value is one bit in length.

26. The method of claim 19, further comprising:

obtaining the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots by reducing resolution of the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots; and

encoding the CQI field for each time slot of the first plurality of time slots with an ACK/NAK acknowledgment value that corresponds to payload data received by the wireless user device from the radio network on a downlink carrier.

27. The method of claim 26, wherein the CQI field is five bits in length, the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots is two bits in length, the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots is two bits in length, and the ACK/NAK acknowledgement value is one bit in length.

28. A method of operating a wireless user equipment device for communicating with a base transceiver station of a radio network, the method comprising:

receiving from the base transceiver station data on a plurality of downlink carriers;

determining values of channel quality indicator for each downlink carrier of the plurality of downlink carriers;

transmitting on a first uplink carrier to the radio network channel quality indicator values in a CQI field, one CQI field per time slot;

selecting for each time slot a selected downlink carrier from the plurality of downlink carriers, each downlink carrier of the plurality of downlink carriers being selected once in a cycle period; and

encoding the CQI field with the channel quality indicator of the selected downlink carrier for said each time slot, so that the CQI field transmitted on the first uplink carrier conveys information regarding channel quality of said each downlink carrier once within the cycle period.

29. The method of claim 28, wherein the cycle period corresponds to the number of time slots equal to the number of downlink carriers in the plurality of downlink carriers.

31. The method of claim 29, further comprising:

transmitting on the first uplink carrier to the base transceiver station data in a CQI field, one CQI field per time slot;

encoding the CQI field with a value of a channel quality indicator of a second downlink carrier selected from the plurality of downlink carriers.

30. A method of operating a wireless user equipment device for communicating with a base transceiver station of a radio network, the method comprising:

receiving from the base transceiver station data on a plurality of downlink carriers;

determining values of channel quality indicator for each downlink carrier of the plurality of downlink carriers;

transmitting on a first uplink carrier to the radio network data in a FeedBack Indicator (FBI) field, one FBI field per time slot; and

encoding the FBI field with at least a portion of a value of a channel quality indicator of a first downlink carrier selected from the plurality of downlink carriers.

32. A method of operating a base transceiver station in a radio network, the method comprising:

receiving data from a wireless user equipment device on a first uplink carrier, the first uplink carrier including a channel with a CQI field;

transmitting data to the wireless user equipment device on a first downlink carrier and on a second downlink carrier;

reading values received in the CQI field, one value received in the CQI field per time slot;

adjusting output power of the first downlink carrier in accordance with a first subfield of the value received in the CQI field in each time slot; and

adjusting output power of the second downlink carrier in accordance with a second subfield of the value received in the CQI field in said each time slot.

33. The method of claim 32, further comprising:

if a third subfield of the value received in the CQI field has a first predetermined value, informing a radio network controller of the radio network that at least one packet sent on a downlink carrier to the wireless user equipment device has been successfully received by the wireless user equipment device.

34. The method of claim 32, further comprising:

if a predetermined subfield of a FeedBack Information (FBI) field of a channel of the first uplink carrier has a first predetermined value, informing a radio network controller of the radio network that at least one packet sent on a downlink carrier to the wireless user equipment device has been successfully received by the wireless user equipment device.

35. A method of operating a base transceiver station in a radio network, the method comprising:

transmitting at least one downlink anchor carrier with full 3GPP Release 99 capability; and

transmitting at least one downlink non-anchor carrier with partial 3GPP Release 99 capability, the step of transmitting at least one downlink non-anchor carrier overlapping in time with the step of transmitting at least one downlink anchor carrier.

36. The method of claim 35, wherein the at least one downlink non-anchor carrier does not carry a synchronization timing channel (SCH).

37. The method of claim 35, wherein the at least one downlink non-anchor carrier does not carry a Primary Common Control Physical channel (P-CCPCH).

38. The method of claim 35, wherein the at least one downlink non-anchor carrier does not carry a Secondary Common Control Physical channel (S-CCPCH).

39. The method of claim 35, wherein the at least one downlink non-anchor carrier does not carry a Physical Random Access Channel (PRACH).

40. The method of claim 35, wherein the at least one downlink non-anchor carrier does not carry a paging channel.

41. The method of claim 35, wherein the base transceiver station does not transmit downlink anchor carriers in addition to the at least one downlink anchor carrier, and the at least one downlink anchor carrier consists of a single downlink anchor carrier.

42. The method of claim 35, further comprising:

synchronizing all downlink carriers transmitted by the base transceiver station to a single time reference.

43. The method of claim 35, further comprising:

synchronizing to a single time reference all downlink carriers transmitted by all base transceiver stations of site of the base transceiver station.

44. A method of operating a base transceiver station in a radio network, the method comprising:

transmitting at least one downlink anchor carrier with a first common channel; and

transmitting at least one downlink non-anchor carrier that does not carry the first common channel, the step of transmitting at least one downlink non-anchor carrier overlapping in time with the step of transmitting at least one downlink anchor carrier.

45. The method of claim 44, wherein the first common channel is a synchronization timing channel (SCH).

46. The method of claim 44, wherein the first common channel is a Primary Common Control Physical channel (P-CCPCH).

47. The method of claim 44, wherein the first common channel is a Secondary Common Control Physical channel (S-CCPCH).

48. The method of claim 44, wherein the first common channel is a Physical Random Access Channel (PRACH).

49. The method of claim 44, wherein the first common channel is a paging channel.

50. A base transceiver station in a radio network, the base transceiver station comprising:

a receiver for receiving data from user equipment devices on at least one uplink carrier; and

a transmitter for transmitting data to user equipment devices on a plurality of downlink carriers, the transmitter being configured to transmit at least one downlink anchor carrier with full 3GPP Release 99 capability, and transmit at least one downlink non-anchor carrier with partial 3GPP Release 99 capability, transmissions of the at least one downlink anchor carrier overlapping in time with transmissions of the at least one downlink non-anchor carrier.

51. The base transceiver station of claim 50, wherein the at least one downlink non-anchor carrier does not carry a synchronization timing channel (SCH).

52. The base transceiver station of claim 50, wherein the at least one downlink non-anchor carrier does not carry a Primary Common Control Physical channel (P-CCPCH).

53. The base transceiver station of claim 50, wherein the at least one downlink non-anchor carrier does not carry a Secondary Common Control Physical channel (S-CCPCH).

54. The base transceiver station of claim 50, wherein the at least one downlink non-anchor carrier does not carry a Physical Random Access Channel (PRACH).

55. The base transceiver station of claim 50, wherein the at least one downlink non-anchor carrier does not carry a paging channel.

56. A base transceiver station in a radio network, the base transceiver station comprising:

a receiver for receiving data from user equipment devices on at least one uplink carrier; and

a transmitter for transmitting data to user equipment devices on a plurality of downlink carriers, the transmitter being configured to transmit at least one downlink anchor carrier with a first common channel, and transmit at least one downlink non-anchor carrier that does not carry the first common channel, transmissions of the at least one downlink anchor carrier overlapping in time with transmissions of the at least one downlink non-anchor carrier.

57. A method of operating a base transceiver station in a radio network, the method comprising:

transmitting a first downlink anchor carrier with a first common channel;

receiving a first signal from a user equipment device, the first signal notifying the base transceiver station that the user equipment device has acquired radio network system to which the base transceiver station belongs using the first downlink anchor carrier;

transmitting a second downlink anchor carrier with the first common channel, the step of transmitting the second downlink anchor carrier overlapping in time with the step of transmitting the first downlink anchor carrier; and

after receiving the first signal, sending to the user equipment device a second signal, the second signal notifying the user equipment device to acquire the radio network system using the second downlink anchor carrier.

58. The method of claim 57, further comprising:

synchronizing the first and second downlink anchor carriers to the same timing reference.

59. The method of claim 57, further comprising:

after receiving the first signal, sending the user equipment device a third signal notifying the user equipment device of timing offset of the second downlink anchor carrier with respect to the first downlink anchor carrier.

60. The method of claim 57, further comprising:

after receiving the first signal, sending the user equipment device a third signal notifying the user equipment device of scrambling code of the second downlink anchor carrier.

61. The method of claim 57, wherein the first and second downlink anchor carriers use the same scrambling code.

62. The method of claim 61, further comprising:

after receiving the first signal, sending the user equipment device a third signal notifying the user equipment device that the scrambling code of the second downlink anchor carrier is the same as the scrambling code of the first downlink anchor carrier.

63. A base transceiver station in a radio network, the base transceiver station comprising:

a receiver for receiving data from user equipment devices on at least one uplink carrier;

a transmitter for transmitting data to user equipment devices on a plurality of downlink carriers; and

a processor controlling the transmitter and the receiver, wherein the processor is arranged to configure the transmitter and the receiver

to transmit a first downlink anchor carrier with a first common channel,

to receive a first signal from a first user equipment device, the first signal notifying the base transceiver station that the first user equipment device has acquired radio network system to which the base transceiver station belongs using the first downlink anchor carrier,

to transmit a second downlink anchor carrier with the first common channel, and

after receipt of the first signal, to send to the first user equipment device a second signal, the second signal notifying the first user equipment device to acquire the radio network system using the second downlink anchor carrier.

64. The base transceiver station of claim 63, wherein the processor is further arranged to configure the transmitter to synchronize the first and second downlink anchor carriers to the same timing reference.

65. The base transceiver station of claim 63, wherein the processor is further arranged to configure the transmitter to send to the first user equipment device a third signal notifying the first user equipment device of timing offset of the second downlink anchor carrier with respect to the first downlink anchor carrier, after receipt of the first signal.

66. The base transceiver station of claim 63, wherein the processor is further arranged to configure the transmitter to send to the first user equipment device a third signal notifying the user equipment device of scrambling code of the second downlink anchor carrier, after receipt of the first signal.

67. The base transceiver station of claim 63, wherein the first and second downlink anchor carriers use the same scrambling code.

68. The base transceiver station of claim 67, wherein the processor is further arranged to configure the transmitter to send to the first user equipment device a third signal notifying the first user equipment device that the scrambling code of the second downlink anchor carrier is the same as the scrambling code of the first downlink anchor carrier, after receiving the first signal.

69. A method of operating a user equipment device in a radio network, the method comprising:

receiving from a base transceiver station of the radio network at least one downlink anchor carrier with full 3GPP Release 99 capability; and

receiving from the base transceiver station at least one downlink non-anchor carrier with partial 3GPP Release 99 capability at the same time as receiving the at least one downlink anchor carrier.

70. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

a receiver; and

a processing circuit;

wherein the processing circuit is arranged to

configure the receiver to receive from a base transceiver station at least one downlink anchor carrier with full 3GPP Release 99 capability,

acquire radio network system using the at least one downlink carrier, and

configure the receiver to receive from the base transceiver station at least one downlink non-anchor carrier with partial 3GPP Release 99 capability at the same time as receiving the at least one downlink anchor carrier.

71. A method of operating a user equipment device in a radio network, the method comprising:

receiving from a base transceiver station of the radio network at least one downlink anchor carrier with a first common channel;

acquiring radio network system using the at least one downlink anchor carrier; and

receiving payload data on at least one downlink non-anchor carrier that does not carry the first common channel, the step of receiving payload data overlapping in time with the step of receiving at least one downlink anchor carrier.

72. A wireless user equipment device for communicating with a radio network, the wireless user equipment device comprising:

a receiver; and

a processing circuit;

wherein the processing circuit is arranged to

configure the receiver to receive from a base transceiver station of the radio network at least one downlink anchor carrier with a first common channel,

acquire radio network system using the at least one downlink anchor carrier, and

configure the receiver to receive payload data on at least one downlink non-anchor carrier that does not carry the first common channel at the same time as receiving the at least one downlink anchor carrier.

73. A method of operating a base transceiver station in a radio network, the method comprising:

transmitting a first downlink anchor carrier with a first common channel;

transmitting a second downlink carrier;

receiving a first signal from a user equipment device, the first signal indicating that the user equipment device has acquired radio network system using the first downlink anchor carrier; and

after receiving the first signal, transmitting a second signal, the second signal commanding the user equipment device to receive the second downlink carrier.

74. The method of claim 73, further comprising:

after transmitting the second signal, receiving a third signal from the user equipment device, the third signal indicating that the user equipment device is ready to receive data using the second downlink carrier; and

after receiving the third signal, transmitting to the user equipment device data on the second downlink carrier.

75. A base transceiver station in a radio network, the base transceiver station comprising:

a receiver for receiving data from user equipment devices;

a transmitter for transmitting data to user equipment devices on a plurality of downlink carriers; and

a processor for controlling the receiver and the transmitter, wherein the processor is arranged

to configure the transmitter to transmit a first downlink anchor carrier with a first common channel and a second downlink carrier,

to configure the receiver to receive a first signal from a first user equipment device, the first signal indicating that the first user equipment device has acquired radio network system using the first downlink anchor carrier, and

to configure the transmitter to transmit, after receipt of the first signal, a second signal, the second signal commanding the first user equipment device to receive the second downlink carrier.

76. The base transceiver station of claim 75, wherein the processor is further arranged

to configure the receiver to receive, after transmission of the second signal, a third signal from the first user equipment device, the third signal indicating that the first user equipment device is ready to receive data using the second downlink carrier;

and

to configure the transmitter to transmit, after receipt of the third signal, data on the second downlink carrier to the first user equipment device.

77. A method of operating a base transceiver station in a radio network, the method comprising:

transmitting a first downlink anchor carrier with a common channel;

receiving a first uplink carrier from a user equipment device;

transmitting a first signal, the first signal commanding the user equipment device to transmit a second uplink carrier; and

synchronizing to the second uplink carrier transmitted by the user equipment device.

78. The method of claim 77, further comprising:

after the step of synchronizing, transmitting a second signal, the second signal indicating to the user equipment device that the base transceiver station is ready to receive data on the second uplink carrier transmitted by the user equipment device; and

receiving data from the user equipment device on the second uplink carrier.

79. A base transceiver station in a radio network, the base transceiver station comprising:

a receiver for receiving data;

a transmitter for transmitting data on a plurality of downlink carriers; and

a processor controlling the receiver and the transmitter, wherein the processor is configured to

cause the transmitter to transmit a first downlink anchor carrier with a common channel,

cause the receiver to receive a first uplink carrier from a user equipment device,

cause the transmitter to transmit a first signal, the first signal commanding the user equipment device to transmit a second uplink carrier, and

synchronize the receiver to the second uplink carrier transmitted by the user equipment device.

80. The base transceiver station of claim 79, wherein the processor is further configured, after synchronizing the receiver,

to cause the transmitter to transmit a second signal, the second signal indicating to the user equipment device that the base transceiver station is ready to receive data on the second uplink carrier transmitted by the user equipment device;

and

to cause the receiver to receive data from the user equipment device on the second uplink carrier.

81. A method of operating a user equipment device in a radio network, the method comprising:

receiving at the user equipment device a first downlink anchor carrier with a common channel from a base transceiver station;

transmitting at the user equipment device a first uplink carrier to the base transceiver station;

receiving at the user equipment device a first signal from the base transceiver station, the first signal commanding the user equipment device to transmit a second uplink carrier; and

transmitting the second uplink carrier in response to receiving the first signal.

82. The method of claim 81, further comprising:

receiving at the user equipment device a second signal from the base transceiver station, the second signal indicating to the user equipment device that the base transceiver station is ready to receive data on the second uplink carrier transmitted by the user equipment device; and

in response to receiving the second signal, transmitting data from the user equipment device to the base transceiver station on the second uplink carrier.

83. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

a receiver;

a transmitter; and

a processing circuit, wherein the processing circuit is configured

to cause the receiver to receive from the base transceiver station a first downlink anchor carrier with a common channel,

to cause the transmitter to transmit a first uplink carrier to the base transceiver station,

to cause the receiver to receive a first signal from the base transceiver station, the first signal commanding the user equipment device to transmit a second uplink carrier, and

to cause the transmitter to transmit the second uplink carrier in response to receiving the first signal.

84. The wireless user equipment device of claim 83, wherein the processing circuit is further configured

to cause the receiver to receive a second signal from the base transceiver station, the second signal indicating to the user equipment device that the base transceiver station is ready to receive data on the second uplink carrier transmitted by the user equipment device;

and

to cause the transmitter to transmit data to the base transceiver station on the second uplink carrier in response to the second signal.

85. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

means for receiving from the base transceiver station data on a first downlink carrier and on a second downlink carrier;

means for determining values of a first channel quality indicator for the first downlink carrier, and values of a second channel quality indicator for the second downlink carrier, one value of the first channel quality indicator per time slot, one value of the second channel quality indicator per time slot;

means for transmitting on a first uplink carrier to the base transceiver station channel quality indicator values in a CQI field, one CQI field per time slot; and

means for encoding the CQI field for each time slot of a first plurality of time slots with (1) a value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots, and (2) a value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots, so that the CQI field transmitted on the first uplink carrier conveys information regarding channel quality of the first downlink carrier and information regarding channel quality of the second downlink carrier for said each time slot of the first plurality of time slots.

86. The wireless user equipment device of claim 85, the means for encoding being further configured to obtain the value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots by reducing resolution of the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots.

87. The wireless user equipment device of claim 86, the means for encoding being further configured to obtain the value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots by computing a difference between (1) the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots, and (2) the value of the second channel quality indicator corresponding to a time slot immediately preceding said each time slot of the first plurality of time slots.

88. The wireless user equipment device of claim 87, the circuit being further configured to encode the CQI field for said each time slot of the first plurality of time slots with an ACK/NAK acknowledgment value that corresponds to payload data received by the wireless user device from the base transceiver station on a downlink carrier.

89. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

means for receiving from the base transceiver station data on a plurality of downlink carriers;

means for determining values of channel quality indicator for each downlink carrier of the plurality of downlink carriers;

means for transmitting on a first uplink carrier to the base transceiver station channel quality indicator values in a CQI field, one CQI field per time slot; and

means for selecting for each time slot a selected downlink carrier from the plurality of downlink carriers, each downlink carrier of the plurality of downlink carriers being selected once in a cycle period; and

means for encoding the CQI field with the channel quality indicator of the selected downlink carrier for said each time slot.

90. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

means for receiving from the base transceiver station data on a plurality of downlink carriers;

means for determining values of channel quality indicator for each downlink carrier of the plurality of downlink carriers;

means for transmitting on a first uplink carrier to the radio network data in a FeedBack Indicator (FBI) field, one FBI field per time slot; and

means for encoding the FBI field with at least a portion of a value of a channel quality indicator of a first downlink carrier selected from the plurality of downlink carriers.

91. The wireless user equipment device of claim 90, wherein:

the means for transmitting is configured to transmit on the first uplink carrier to the base transceiver station network data in a CQI field, one CQI field per time slot; and

the means for encoding is configured to encode the CQI field with a value of a channel quality indicator of a second downlink carrier selected from the plurality of downlink carriers.

92. A base transceiver station in a radio network, for communicating with a wireless user equipment device, the base transceiver station comprising:

means for receiving data from the wireless user equipment device on a first uplink carrier, the first uplink carrier including a channel with a CQI field;

means for transmitting data to the wireless user equipment device on a first downlink carrier and on a second downlink carrier; and

means for processing configured to;

receive values in the CQI field, one received value in the CQI field per time slot,

adjust output power of the first downlink carrier in accordance with a first subfield of the received value in the CQI field in each time slot, and

adjust output power of the second downlink carrier in accordance with a second subfield of the received value in the CQI field in said each time slot.

93. The base transceiver station of claim 92, wherein the means for processing is further configured to:

read a third subfield of the received value in the CQI field, and if the third subfield has a first value, inform a radio network controller of the radio network that at least one packet sent on a downlink carrier to the wireless user equipment device has been successfully received by the wireless user equipment device.

94. The base transceiver station of claim 92, wherein:

the first uplink carrier includes a channel with a FeedBack Information (FBI) field;

the means for processing is further configured to inform a radio network controller of the radio network that at least one packet sent on a downlink carrier to the wireless user equipment device has been successfully received by the wireless user equipment device, if a third subfield of the FBI field has a first predetermined value.

95. A method of operating a wireless user equipment device for communicating with a base transceiver station of a radio network, the method comprising:

a step for receiving from the base transceiver station data on a first downlink carrier and on a second downlink carrier;

a step for determining values of a first channel quality indicator for the first downlink carrier, one value of the first channel quality indicator per time slot;

a step for determining values of a second channel quality indicator for the second downlink carrier, one value of the second channel quality indicator per time slot;

a step for transmitting on a first uplink carrier to the radio network channel quality indicator values in a CQI field, one CQI field per time slot; and

a step for encoding the CQI field for each time slot of a first plurality of time slots with a value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots, and a value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots.

96. A method of operating a wireless user equipment device for communicating with a base transceiver station of a radio network, the method comprising:

a step for receiving from the base transceiver station data on a plurality of downlink carriers;

a step for determining values of channel quality indicator for each downlink carrier of the plurality of downlink carriers;

a step for transmitting on a first uplink carrier to the radio network channel quality indicator values in a CQI field, one CQI field per time slot;

a step for selecting for each time slot a selected downlink carrier from the plurality of downlink carriers, each downlink carrier of the plurality of downlink carriers being selected once in a cycle period; and

a step for encoding the CQI field with the channel quality indicator of the selected downlink carrier for said each time slot, so that the CQI field transmitted on the first uplink carrier conveys information regarding channel quality of said each downlink carrier once within the cycle period.

97. A method of operating a wireless user equipment device for communicating with a base transceiver station of a radio network, the method comprising:

a step for receiving from the base transceiver station data on a plurality of downlink carriers;

a step for determining values of channel quality indicator for each downlink carrier of the plurality of downlink carriers;

a step for transmitting on a first uplink carrier to the radio network data in a FeedBack Indicator (FBI) field, one FBI field per time slot; and

a step for encoding the FBI field with at least a portion of a value of a channel quality indicator of a first downlink carrier selected from the plurality of downlink carriers.

98. A method of operating a base transceiver station in a radio network, the method comprising:

a step for receiving data from a wireless user equipment device on a first uplink carrier, the first uplink carrier including a channel with a CQI field;

a step for transmitting data to the wireless user equipment device on a first downlink carrier and on a second downlink carrier;

a step for reading values received in the CQI field, one value received in the CQI field per time slot;

a step for adjusting output power of the first downlink carrier in accordance with a first subfield of the value received in the CQI field in each time slot; and

a step for adjusting output power of the second downlink carrier in accordance with a second subfield of the value received in the CQI field in said each time slot.

99. A method of operating a base transceiver station in a radio network, the method comprising:

a step for transmitting at least one downlink anchor carrier with full 3GPP Release 99 capability; and

a step for transmitting at least one downlink non-anchor carrier with partial 3GPP Release 99 capability, the step for transmitting at least one downlink non-anchor carrier overlapping in time with the step for transmitting at least one downlink anchor carrier.

100. A method of operating a base transceiver station in a radio network, the method comprising:

a step for transmitting at least one downlink anchor carrier with a first common channel; and

a step for transmitting at least one downlink non-anchor carrier that does not carry the first common channel, the step for transmitting at least one downlink non-anchor carrier overlapping in time with the step for transmitting at least one downlink anchor carrier.

101. A base transceiver station in a radio network, the base transceiver station comprising:

means for receiving data from user equipment devices on at least one uplink carrier; and

means for transmitting data to user equipment devices on a plurality of downlink carriers, the means for transmitting being configured to transmit at least one downlink anchor carrier with full 3GPP Release 99 capability, and transmit at least one downlink non-anchor carrier with partial 3GPP Release 99 capability, transmissions of the at least one downlink anchor carrier overlapping in time with transmissions of the at least one downlink non-anchor carrier.

102. The base transceiver station of claim 101, wherein the at least one downlink non-anchor carrier does not carry a synchronization timing channel (SCH).

103. A base transceiver station in a radio network, the base transceiver station comprising:

means for receiving data from user equipment devices on at least one uplink carrier; and

means for transmitting data to user equipment devices on a plurality of downlink carriers, the means for transmitting being configured to transmit at least one downlink anchor carrier with a first common channel, and transmit at least one downlink non-anchor carrier that does not carry the first common channel, transmissions of the at least one downlink anchor carrier overlapping in time with transmissions of the at least one downlink non-anchor carrier.

104. A method of operating a base transceiver station in a radio network, the method comprising:

a step for transmitting a first downlink anchor carrier with a first common channel;

a step for receiving a first signal from a user equipment device, the first signal notifying the base transceiver station that the user equipment device has acquired radio network system to which the base transceiver station belongs using the first downlink anchor carrier;

a step for transmitting a second downlink anchor carrier with the first common channel, the step for transmitting the second downlink anchor carrier overlapping in time with the step for transmitting the first downlink anchor carrier; and

a step for sending to the user equipment device a second signal, after receiving the first signal, the second signal notifying the user equipment device to acquire the radio network system using the second downlink anchor carrier.

105. A base transceiver station in a radio network, the base transceiver station comprising:

means for receiving data from user equipment devices on at least one uplink carrier;

means for transmitting data to user equipment devices on a plurality of downlink carriers; and

means for controlling the means for receiving and the means for transmitting, wherein the means for controlling is arranged to configure the means for transmitting and the means for receiving

to transmit a first downlink anchor carrier with a first common channel,

to receive a first signal from a first user equipment device, the first signal notifying the base transceiver station that the first user equipment device has acquired radio network system to which the base transceiver station belongs using the first downlink anchor carrier,

to transmit a second downlink anchor carrier with the first common channel, and

after receipt of the first signal, to send to the first user equipment device a second signal, the second signal notifying the first user equipment device to acquire the radio network system using the second downlink anchor carrier.

106. The base transceiver station of claim 105, wherein the means for controlling is further arranged to configure the means for transmitting to synchronize the first and second downlink anchor carriers to the same timing reference.

107. The base transceiver station of claim 105, wherein the means for controlling is further arranged to configure the means for transmitting to send to the first user equipment device a third signal notifying the first user equipment device of timing offset of the second downlink anchor carrier with respect to the first downlink anchor carrier, after receipt of the first signal.

108. The base transceiver station of claim 105, wherein the means for controlling is further arranged to configure the means for transmitting to send to the first user equipment device a third signal notifying the user equipment device of scrambling code of the second downlink anchor carrier, after receipt of the first signal.

109. A method of operating a user equipment device in a radio network, the method comprising:

a step for receiving from a base transceiver station of the radio network at least one downlink anchor carrier with full 3GPP Release 99 capability; and

a step for receiving from the base transceiver station at least one downlink non-anchor carrier with partial 3GPP Release 99 capability at the same time as receiving the at least one downlink anchor carrier.

110. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

means for receiving downlink carriers; and

means for controlling the means for receiving;

wherein the means for controlling is arranged to

configure the means for receiving to receive from a base transceiver station at least one downlink anchor carrier with full 3GPP Release 99 capability,

acquire radio network system using the at least one downlink carrier, and

configure the means for receiving to receive from the base transceiver station at least one downlink non-anchor carrier with partial 3GPP Release 99 capability at the same time as receiving the at least one downlink anchor carrier.

111. A method of operating a user equipment device in a radio network, the method comprising:

a step for receiving from a base transceiver station of the radio network at least one downlink anchor carrier with a first common channel;

a step for acquiring radio network system using the at least one downlink anchor carrier; and

a step for receiving payload data on at least one downlink non-anchor carrier that does not carry the first common channel, the step for receiving payload data overlapping in time with the step for receiving at least one downlink anchor carrier.

112. A wireless user equipment device for communicating with a radio network, the wireless user equipment device comprising:

means for receiving downlink carriers; and

means for controlling arranged to

configure the means for receiving to receive from a base transceiver station of the radio network at least one downlink anchor carrier with a first common channel,

acquire radio network system using the at least one downlink anchor carrier, and

configure the means for receiving to receive payload data on at least one downlink non-anchor carrier that does not carry the first common channel at the same time as receiving the at least one downlink anchor carrier.

113. A method of operating a base transceiver station in a radio network, the method comprising:

a step for transmitting a first downlink anchor carrier with a first common channel;

a step for transmitting a second downlink carrier;

a step for receiving a first signal from a user equipment device, the first signal indicating that the user equipment device has acquired radio network system using the first downlink anchor carrier; and

a step for transmitting a second signal, after receiving the first signal, the second signal commanding the user equipment device to receive the second downlink carrier.

114. A base transceiver station in a radio network, the base transceiver station comprising:

means for receiving data from user equipment devices;

means for transmitting data to user equipment devices on a plurality of downlink carriers; and

means for controlling the means for receiving and the means for transmitting, wherein the means for controlling is arranged

to configure the means for transmitting to transmit a first downlink anchor carrier with a first common channel and a second downlink carrier,

to configure the means for receiving to receive a first signal from a first user equipment device, the first signal indicating that the first user equipment device has acquired radio network system using the first downlink anchor carrier, and

to configure the means for transmitting to transmit, after receipt of the first signal, a second signal, the second signal commanding the first user equipment device to receive the second downlink carrier.

115. A method of operating a base transceiver station in a radio network, the method comprising:

a step for transmitting a first downlink anchor carrier with a common channel;

a step for receiving a first uplink carrier from a user equipment device;

a step for commanding the user equipment device to transmit a second uplink carrier; and

a step for synchronizing to the second uplink carrier transmitted by the user equipment device.

116. A base transceiver station in a radio network, the base transceiver station comprising:

means for receiving data;

means for transmitting data on a plurality of downlink carriers; and

means for controlling the means for receiving and the means for transmitting, wherein the means for controlling is configured to

cause the means for transmitting to transmit a first downlink anchor carrier with a common channel,

cause the means for receiving to receive a first uplink carrier from a user equipment device, and

cause the means for transmitting to transmit a first signal, the first signal commanding the user equipment device to transmit a second uplink carrier; and

means for synchronizing the means for receiving to the second uplink carrier transmitted by the user equipment device.

117. A method of operating a user equipment device in a radio network, the method comprising:

a step for receiving at the user equipment device a first downlink anchor carrier with a common channel from a base transceiver station;

a step for transmitting at the user equipment device a first uplink carrier to the base transceiver station;

a step for receiving at the user equipment device a first signal from the base transceiver station, the first signal commanding the user equipment device to transmit a second uplink carrier; and

a step for transmitting the second uplink carrier in response to receiving the first signal.

118. A wireless user equipment device for communicating with a base transceiver station of a radio network, the wireless user equipment device comprising:

means for receiving;

means for transmitting; and

means for controlling the means for receiving and the means for transmitting, wherein the means for controlling is configured

to cause the means for receiving to receive from the base transceiver station a first downlink anchor carrier with a common channel,

to cause the means for transmitting to transmit a first uplink carrier to the base transceiver station,

to cause the means for receiving to receive a first signal from the base transceiver station, the first signal commanding the user equipment device to transmit a second uplink carrier, and

to cause the means for transmitting to transmit the second uplink carrier in response to receiving the first signal.

119. A machine-readable medium comprising instructions, the instructions when executed by at least one processor of a wireless user equipment device, cause the wireless user equipment device to perform operations comprising:

receiving from a base transceiver station of a radio network data on a first downlink carrier and on a second downlink carrier;

determining values of a first channel quality indicator for the first downlink carrier, one value of the first channel quality indicator per time slot;

determining values of a second channel quality indicator for the second downlink carrier, one value of the second channel quality indicator per time slot;

transmitting on a first uplink carrier to the radio network channel quality indicator values in a CQI field, one CQI field per time slot; and

encoding the CQI field for each time slot of a first plurality of time slots with a value derived from the value of the first channel quality indicator corresponding to said each time slot of the first plurality of time slots, and a value derived from the value of the second channel quality indicator corresponding to said each time slot of the first plurality of time slots.

120. A machine-readable medium comprising instructions, the instructions, when executed by at least one processor of a base transceiver station in a radio network, cause the base transceiver station to perform operations comprising:

receiving data from a wireless user equipment device on a first uplink carrier, the first uplink carrier including a channel with a CQI field;

transmitting data to the wireless user equipment device on a first downlink carrier and on a second downlink carrier; and

reading values received in the CQI field, one value received in the CQI field per time slot;

adjusting output power of the first downlink carrier in accordance with a first subfield of the value received in the CQI field in each time slot;

adjusting output power of the second downlink carrier in accordance with a second subfield of the value received in the CQI field in said each time slot.

121. A machine-readable medium comprising instructions, the instructions, when executed by at least one processor of a base transceiver station in a radio network, cause the base transceiver station to perform operations comprising:

transmitting at least one downlink anchor carrier with full 3GPP Release 99 capability; and

transmitting at least one downlink non-anchor carrier with partial 3GPP Release 99 capability, the step of transmitting at least one downlink non-anchor carrier overlapping in time with the step of transmitting at least one downlink anchor carrier.

122. A machine-readable medium comprising instructions, the instructions, when executed by at least one processor of a base transceiver station in a radio network, cause the base transceiver station to perform operations comprising:

transmitting a first downlink anchor carrier with a first common channel;

receiving a first signal from a user equipment device, the first signal notifying the base transceiver station that the user equipment device has acquired radio network system to which the base transceiver station belongs using the first downlink anchor carrier;

transmitting a second downlink anchor carrier with the first common channel, the step of transmitting the second downlink anchor carrier overlapping in time with the step of transmitting the first downlink anchor carrier; and

after receiving the first signal, sending to the user equipment device a second signal, the second signal notifying the user equipment device to acquire the radio network system using the second downlink anchor carrier.

123. A machine-readable medium comprising instructions, the instructions, when executed by at least one processor of a wireless user equipment device, cause the wireless user equipment device to perform operations comprising:

receiving from a base transceiver station of a radio network at least one downlink anchor carrier with full 3GPP Release 99 capability; and

receiving from the base transceiver station at least one downlink non-anchor carrier with partial 3GPP Release 99 capability at the same time as receiving the at least one downlink anchor carrier.