Primary and secondary cell group configuration

• US 10,652,928 B2
• Filed: 04/18/2017
• Issued: 05/12/2020
• Est. Priority Date: 01/25/2012
• Status: Active Grant

• Current Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Original Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Inventors: Dinan, Esmael Hejazi
• Primary Examiner(s): Park, Jung H
• Application Number:
  US15/490,496
• Publication Number:
  US 20170332408A1
• Time in Patent Office: 1,120 Days
• CPC Class Codes: H04J 2011/0096 Network synchronisation
• CPC Class Codes: H04L 27/2692 with preamble design, i.e. with negotiation of the synchronisation sequence with transmitter or sequence linked to the algorithm used at the receiver
• CPC Class Codes: H04L 27/32 Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04L 65/1066 Session management
• CPC Class Codes: H04W 28/00 Network traffic management; Network resource management
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 48/00 Access restriction access security to prevent unauthorised access H04W12/08; Network selection; Access point selection
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 52/14 Separate analysis of uplink or downlink
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/18 TPC being performed according to specific parameters
• CPC Class Codes: H04W 52/242 taking into account path loss
• CPC Class Codes: H04W 52/248 where transmission power control commands are generated based on a path parameter
• CPC Class Codes: H04W 52/34 TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment
• CPC Class Codes: H04W 56/00 Synchronisation arrangements
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 56/001 : Synchronization between nodes
• CPC Class Codes: H04W 56/0045 : compensating for timing error by altering transmission time
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/002 : Transmission of channel access control information
• CPC Class Codes: H04W 74/006 : in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/0833 : Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/15 : Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/18 : Management of setup rejection or failure
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/08 : Access point devices

Abstract

A wireless device receives at least one control message comprising configuration parameters of a plurality of cells grouped into at least a first cell group and a second cell group. The first cell group comprises a first reference cell. The second cell group comprises a second reference cell. The at least one control message comprises a pathloss reference for a secondary cell in the second cell group. The pathloss reference is configurable to one of a) a downlink of the second reference cell and b) a downlink of the secondary cell.

Claims

1. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to;

receive at least one control message comprising;

configuration parameters of a plurality of cells, wherein the plurality of cells comprise a plurality of cell groups, and wherein a secondary cell group of the plurality of cell groups comprises one or more secondary cells (SCells); and

one or more pathloss reference parameters associated with the one or more SCells, wherein a first pathloss reference parameter, of the one or more pathloss reference parameters, associated with a first SCell of the one or more SCells indicates either;

a downlink carrier associated with a timing reference cell, wherein the timing reference cell is associated with a cell group of the first SCell;

or

a downlink carrier associated with the first SCell; and

transmit uplink signals via the first SCell, wherein a transmission power of the uplink signals via the first SCell is based on a received power of a downlink signal associated with the first pathloss reference parameter associated with the first SCell.

2. The wireless device of claim 1, wherein the instructions, when executed by the one or more processors, further cause the wireless device to transmit uplink signals via a second SCell of the one or more SCells, wherein a transmission power of the uplink signals via the second SCell is based on a received power of a downlink signal associated with a second pathloss reference parameter, of the one or more pathloss reference parameters, associated with the second SCell.

3. The wireless device of claim 2, wherein the transmission power of the uplink signals via the second SCell is further based on at least one power control parameter in the at least one control message.

4. The wireless device of claim 2, wherein:

the first pathloss reference parameter is a first binary information element having two states; and

the second pathloss reference parameter is a second binary information element having two states.

5. The wireless device of claim 1, wherein the at least one control message further comprises:

a first timer value for a first time alignment timer, wherein the first time alignment timer is associated with a first cell group of the plurality of cell groups; and

a second timer value for a second time alignment timer, wherein the second time alignment timer is associated with the secondary cell group.

6. The wireless device of claim 5, wherein:

the first time alignment timer indicates a duration of time that the first cell group is uplink time aligned; and

the second time alignment timer indicates a duration of time that the secondary cell group is uplink time aligned.

7. The wireless device of claim 1, wherein the instructions, when executed by the one or more processors, further cause the wireless device to receive a media access control (MAC) timing advance command, wherein the MAC timing advance command is for one of the plurality of cell groups.

8. The wireless device of claim 1, wherein the transmission power of the uplink signals via the first SCell is further based on measurements of the received power of the downlink signal associated with the first pathloss reference parameter associated with the first SCell.

9. The wireless device of claim 1, wherein the transmission power of the uplink signals via the first SCell is further based on at least one power control parameter in the at least one control message.

10. A method comprising:

receiving, by a wireless device and from a base station, at least one control message comprising;

configuration parameters of a plurality of cells, wherein the plurality of cells comprise a plurality of cell groups, and wherein a secondary cell group of the plurality of cell groups comprises one or more secondary cells (SCells); and

one or more pathloss reference parameters associated with the one or more SCells, wherein a first pathloss reference parameter, of the one or more pathloss reference parameters, associated with a first SCell of the one or more SCells indicates either;

a downlink carrier associated with a timing reference cell, wherein the timing reference cell is associated with a cell group of the first SCell;

or

a downlink carrier associated with the first SCell; and

transmitting uplink signals via the first SCell, wherein a transmission power of the uplink signals via the first SCell is based on a received power of a downlink signal associated with the first pathloss reference parameter associated with the first SCell.

11. The method of claim 10, further comprising transmitting uplink signals via a second SCell of the one or more SCells, wherein a transmission power of the uplink signals via the second SCell is based on a received power of a downlink signal associated with a second pathloss reference parameter, of the one or more pathloss reference parameters, associated with the second SCell.

12. The method of claim 11, wherein the transmission power of the uplink signals via the second SCell is further based on at least one power control parameter in the at least one control message.

13. The method of claim 11, wherein:

the first pathloss reference parameter is a first binary information element having two states; and

the second pathloss reference parameter is a second binary information element having two states.

14. The method of claim 10, wherein the at least one control message further comprises:

a first timer value for a first time alignment timer, wherein the first time alignment timer is associated with a first cell group of the plurality of cell groups; and

a second timer value for a second time alignment timer, wherein the second time alignment timer is associated with the secondary cell group of the plurality of cell groups.

15. The method of claim 14, wherein:

the first time alignment timer indicates a duration of time that the first cell group is uplink time aligned; and

the second time alignment timer indicates a duration of time that the secondary cell group is uplink time aligned.

16. The method of claim 10, further comprising receiving, by the wireless device, a media access control (MAC) timing advance command, wherein the MAC timing advance command is for one of the plurality of cell groups.

17. The method of claim 10, wherein the transmission power of the uplink signals via the first SCell is further based on measurements of the received power of the downlink signal associated with the first pathloss reference parameter associated with the first SCell.

18. The method of claim 10, wherein the transmission power of the uplink signals via the first SCell is further based on at least one power control parameter in the at least one control message.

19. A base station comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the base station to;

transmit at least one control message comprising;

configuration parameters of a plurality of cells, wherein the plurality of cells comprise a plurality of cell groups, and wherein a secondary cell group of the plurality of cell groups comprises one or more secondary cells (SCells); and

one or more pathloss reference parameters associated with the one or more SCells, wherein a first pathloss reference parameter, of the one or more pathloss reference parameters, associated with a first SCell of the one or more SCells indicates either;

a downlink carrier associated with a timing reference cell, wherein the timing reference cell is associated with a cell group of the first SCell;

or

a downlink carrier associated with the first SCell; and

receive uplink signals via the first SCell, wherein a transmission power of the uplink signals via the first SCell is based on the first pathloss reference parameter associated with the first SCell.

20. The base station of claim 19, wherein the instructions, when executed by the one or more processors, further cause the base station to receive uplink signals via a second SCell of the one or more SCells, wherein a transmission power of the uplink signals via the second SCell is based on a second pathloss reference parameter, of the one or more pathloss reference parameters, associated with the second SCell.

21. The base station of claim 20, wherein the transmission power of the uplink signals via the second SCell is further based on at least one power control parameter in the at least one control message.

22. The base station of claim 20, wherein:

the first pathloss reference parameter is a first binary information element having two states; and

the second pathloss reference parameter is a second binary information element having two states.

23. The base station of claim 19, wherein the at least one control message further comprises:

a first timer value for a first time alignment timer, wherein the first time alignment timer is associated with a first cell group of the plurality of cell groups; and

a second timer value for a second time alignment timer, wherein the second time alignment timer is associated with the secondary cell group of the plurality of cell groups.

24. The base station of claim 23, wherein:

the first time alignment timer indicates a duration of time that the first cell group is uplink time aligned; and

the second time alignment timer indicates a duration of time that the secondary cell group is uplink time aligned.

25. The base station of claim 19, wherein the instructions, when executed by the one or more processors, further cause the base station to transmit a media access control (MAC) timing advance command, wherein the MAC timing advance command is for one of the plurality of cell groups.

26. The base station of claim 19, wherein the transmission power of the uplink signals via the first SCell is further based on measurements of a received power of a downlink signal associated with the first pathloss reference parameter associated with the first SCell.

27. The base station of claim 19, wherein the transmission power of the uplink signals via the first SCell is further based on at least one power control parameter in the at least one control message.

28. A method comprising:

transmitting, by a base station and to a wireless device, at least one control message comprising;

configuration parameters of a plurality of cells, wherein the plurality of cells comprise a plurality of cell groups, and wherein a secondary cell group of the plurality of cell groups comprises one or more secondary cells (SCells); and

one or more pathloss reference parameters associated with the one or more SCells, wherein a first pathloss reference parameter, of the one or more pathloss reference parameters, associated with a first SCell of the one or more SCells indicates either;

a downlink carrier associated with a timing reference cell, wherein the timing reference cell is associated with a cell group of the first SCell;

or

a downlink carrier associated with the first SCell; and

receiving uplink signals via the first SCell, wherein a transmission power of the uplink signals via the first SCell is based on the first pathloss reference parameter associated with the first SCell.

29. The method of claim 28, further comprising receiving uplink signals via a second SCell of the one or more SCells, wherein a transmission power of the uplink signals via the second SCell is based on a second pathloss reference parameter, of the one or more pathloss reference parameters, associated with the second SCell.

30. The method of claim 29, wherein the transmission power of the uplink signals via the second SCell is further based on at least one power control parameter in the at least one control message.

31. The method of claim 29, wherein:

the first pathloss reference parameter is a first binary information element having two states; and

the second pathloss reference parameter is a second binary information element having two states.

32. The method of claim 28, wherein the at least one control message further comprises:

a first timer value for a first time alignment timer, wherein the first time alignment timer is associated with a first cell group of the plurality of cell groups; and

a second timer value for a second time alignment timer, wherein the second time alignment timer is associated with the secondary cell group of the plurality of cell groups.

33. The method of claim 32, wherein:

the first time alignment timer indicates a duration of time that the first cell group is uplink time aligned; and

the second time alignment timer indicates a duration of time that the secondary cell group is uplink time aligned.

34. The method of claim 28, further comprising transmitting, by the base station, a media access control (MAC) timing advance command, wherein the MAC timing advance command is for one of the plurality of cell groups.

35. The method of claim 28, wherein the transmission power of the uplink signals via the first SCell is further based on measurements of a received power of a downlink signal associated with the first pathloss reference parameter associated with the first SCell.

36. The method of claim 28, wherein transmission power of the uplink signals via the first SCell is further based on at least one power control parameter in the at least one control message.

37. A system comprising:

a base station comprising;

one or more processors; and

memory storing instructions that, when executed by the one or more processors of the base station, cause the base station to;

transmit at least one control message comprising;

configuration parameters of a plurality of cells, wherein the plurality of cells comprise a plurality of cell groups, and wherein a secondary cell group of the plurality of cell groups comprises one or more secondary cells (SCells); and

one or more pathloss reference parameters associated with the one or more SCells, wherein a first pathloss reference parameter, of the one or more pathloss reference parameters, associated with a first SCell of the one or more SCells indicates either;

 

a downlink carrier associated with a timing reference cell, wherein the timing reference cell is associated with a cell group of the first SCell;

or

 

a downlink carrier associated with the first SCell; and

a wireless device comprising;

one or more processors; and

memory storing instructions that, when executed by the one or more processors of the wireless device, cause the wireless device to;

transmit uplink signals via the first SCell, wherein a transmission power of the uplink signals via the first SCell is based on a received power of a downlink signal associated with the first pathloss reference parameter associated with the first SCell.

38. The system of claim 37, wherein the instructions, when executed by the one or more processors of the wireless device, further cause the wireless device to transmit uplink signals via a second SCell of the one or more SCells, wherein a transmission power of the uplink signals via the second SCell is based on a received power of a downlink signal associated with a second pathloss reference parameter, of the one or more pathloss reference parameters, associated with the second SCell.

39. The system of claim 38, wherein the transmission power of the uplink signals via the second SCell is further based on at least one power control parameter in the at least one control message.

40. The system of claim 38, wherein:

the first pathloss reference parameter is a first binary information element having two states; and

the second pathloss reference parameter is a second binary information element having two states.

41. The system of claim 37, wherein the at least one control message further comprises:

a first timer value for a first time alignment timer, wherein the first time alignment timer is associated with a first cell group of the plurality of cell groups; and

a second timer value for a second time alignment timer, wherein the second time alignment timer is associated with the secondary cell group of the plurality of cell groups.

42. The system of claim 41, wherein:

the first time alignment timer indicates a duration of time that the first cell group is uplink time aligned; and

the second time alignment timer indicates a duration of time that the secondary cell group is uplink time aligned.

43. The system of claim 37, wherein the instructions, when executed by the one or more processors of the base station, further cause the base station to transmit a media access control (MAC) timing advance command, wherein the MAC timing advance command is for one of the plurality of cell groups.

44. The system of claim 37, wherein the transmission power of the uplink signals via the first SCell is further based on measurements of the received power of the downlink signal associated with the first pathloss reference parameter associated with the first SCell.

45. The system of claim 37, wherein the transmission power of the uplink signals via the first SCell is further based on at least one power control parameter in the at least one control message.

46. A method comprising:

transmitting, by a base station and to a wireless device, at least one control message comprising;

configuration parameters of a plurality of cells, wherein the plurality of cells comprise a plurality of cell groups, and wherein a secondary cell group of the plurality of cell groups comprises one or more secondary cells (SCells); and

one or more pathloss reference parameters associated with the one or more SCells, wherein a first pathloss reference parameter, of the one or more pathloss reference parameters, associated with a first SCell of the one or more SCells indicates either;

a downlink carrier associated with a timing reference cell, wherein the timing reference cell is associated with a cell group of the first SCell;

or

a downlink carrier associated with the first SCell; and

transmitting, by the wireless device, uplink signals via the first SCell, wherein a transmission power of the uplink signals via the first SCell is based on a received power of a downlink signal associated with the first pathloss reference parameter associated with the first SCell.

47. The method of claim 46, further comprising transmitting, by the wireless device, uplink signals via a second SCell of the one or more SCells, wherein a transmission power of the uplink signals via the second SCell is based on a received power of a downlink signal associated with a second pathloss reference parameter, of the one or more pathloss reference parameters, associated with the second SCell.

48. The method of claim 47, wherein the transmission power of the uplink signals via the second SCell is further based on at least one power control parameter in the at least one control message.

49. The method of claim 47, wherein:

the first pathloss reference parameter is a first binary information element having two states; and

the second pathloss reference parameter is a second binary information element having two states.

50. The method of claim 46, wherein the at least one control message further comprises:

a first timer value for a first time alignment timer, wherein the first time alignment timer is associated with a first cell group of the plurality of cell groups; and

a second timer value for a second time alignment timer, wherein the second time alignment timer is associated with the secondary cell group of the plurality of cell groups.

51. The method of claim 50, wherein:

the first time alignment timer indicates a duration of time that the first cell group is uplink time aligned; and

the second time alignment timer indicates a duration of time that the secondary cell group is uplink time aligned.

52. The method of claim 46, further comprising transmitting, by the base station, a media access control (MAC) timing advance command, wherein the MAC timing advance command is for one of the plurality of cell groups.

53. The method of claim 46, wherein the transmission power of the uplink signals via the first SCell is further based on measurements of the received power of the downlink signal associated with the first pathloss reference parameter associated with the first SCell.

54. The method of claim 46, wherein the transmission power of the uplink signals via the first SCell is further based on at least one power control parameter in the at least one control message.