Uplink transmissions in a wireless device

• US 9,769,772 B2
• Filed: 01/17/2015
• Issued: 09/19/2017
• Est. Priority Date: 04/20/2012
• 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): LIN, KENNY S
• Application Number:
  US14/599,493
• Publication Number:
  US 20150131590A1
• Time in Patent Office: 976 Days
• Field of Search: None
• CPC Class Codes: H04B 7/2618 using hybrid code-time division multiple access [CDMA-TDMA]
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04J 2011/0096 Network synchronisation
• CPC Class Codes: H04L 2101/622 Layer-2 addresses, e.g. medium access control [MAC] addresses
• CPC Class Codes: H04L 27/18 Phase-modulated carrier systems, i.e. using phase-shift keying H04L27/32 takes precedence
• CPC Class Codes: H04L 41/0681 Configuration of triggering conditions
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 52/06 TPC algorithms
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/346 distributing total power among users or channels
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 52/40 during macro-diversity or soft handoff
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 56/0045 compensating for timing error by altering transmission time
• CPC Class Codes: H04W 56/005 compensating for timing error by adjustment in the receiver
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0473 : the resource being transmission power
• 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 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/56 : based on priority criteria
• CPC Class Codes: H04W 74/0833 : Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 88/02 : Terminal devices

Abstract

A wireless device receives a control command instructing the wireless device to transmit a random access preamble on a random access channel of a first cell. The wireless device transmits, overlapping in time with transmission of the random access preamble, an uplink packet on a first subframe of the first cell. Transmission power of the uplink packet is calculated considering a maximum allowable transmission power in the first subframe of the first cell and the transmission power of the random access preamble.

Claims

1. A method comprising:

receiving, by a wireless device and from a base station, at least one message comprising configuration parameters of a plurality of cells comprising a primary cell and at least one secondary cell, wherein the plurality of cells are grouped into a plurality of cell groups;

receiving, by the wireless device, a control command configured to cause the wireless device to transmit a random access preamble via a random access channel associated with a first cell of a first cell group of the plurality of cell groups; and

transmitting, overlapping in time with a transmission of the random access preamble and in a first subframe of the first cell, an uplink packet, wherein transmission power associated with the uplink packet is based on;

a maximum allowable transmission power associated with the first subframe of the first cell; and

transmission power associated with the random access preamble.

2. The method of claim 1, wherein the transmission power associated with the uplink packet is further based on:

a difference between a determined power associated with the random access preamble and the maximum allowable transmission power associated with the first subframe of the first cell, if a combined power of a determined transmission power associated with the uplink packet and the determined power associated with the random access preamble exceeds the maximum allowable transmission power.

3. The method of claim 1, wherein the maximum allowable transmission power is an allowable transmission power for the first cell.

4. The method of claim 1, wherein each cell of the plurality of cells is assigned a corresponding maximum allowable transmission power.

5. The method of claim 1, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

6. The method of claim 1, wherein the at least one message is configured to cause configuration of the random access channel.

7. The method of claim 1, wherein the control command comprises an index of the random access preamble.

8. The method of claim 1, wherein:

the first cell group is a secondary cell group; and

the first cell is a secondary cell of the secondary cell group.

9. A method comprising:

receiving, by a wireless device and from a base station, at least one message comprising configuration parameters of a plurality of cells comprising a primary cell and at least one secondary cell;

b) receiving, by the wireless device, a control command configured to cause the wireless device to transmit a random access preamble via a random access channel associated with a first cell of the plurality of cells; and

transmitting, overlapping in time with a transmission of the random access preamble and in a first subframe of the first cell, an uplink packet, wherein transmission power associated with the uplink packet is based on;

a maximum allowable transmission power associated with the first subframe of the first cell; and

a transmission power associated with the random access preamble.

10. The method of claim 9, wherein the transmission power associated with the uplink packet is further based on:

a difference between a determined power associated with the random access preamble and the maximum allowable transmission power associated with the first subframe of the first cell, if a combined power of a determined transmission power associated with the uplink packet and the determined power associated with the random access preamble exceeds the maximum allowable transmission power.

11. The method of claim 9, wherein the maximum allowable transmission power is an allowable transmission power for the first cell.

12. The method of claim 9, wherein each cell of the plurality of cells is assigned a corresponding maximum allowable transmission power.

13. The method of claim 9, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

14. The method of claim 9, wherein the at least one message is configured to cause configuration of the random access channel.

15. The method of claim 9, wherein the control command comprises an index of the random access preamble.

16. The method of claim 9, wherein the first cell is a secondary cell of a secondary cell group.

17. 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, from a base station, at least one message comprising configuration parameters of a plurality of cells comprising a primary cell and at least one secondary cell;

receive, from the base station, a control command configured to cause the wireless device to transmit a random access preamble via a random access channel associated with a first cell of the plurality of cells; and

transmit, overlapping in time with a transmission of the random access preamble and in a first subframe of the first cell, an uplink packet, wherein transmission power associated with the uplink packet is based on;

a maximum allowable transmission power associated with the first subframe of the first cell; and

a transmission power associated with the random access preamble.

18. The wireless device of claim 17, wherein the transmission power associated with the uplink packet is further based on:

a difference between a determined power associated with the random access preamble and the maximum allowable transmission power associated with the first subframe of the first cell, if a combined power of a determined transmission power associated with the uplink packet and the determined power associated with the random access preamble exceeds the maximum allowable transmission power.

19. The wireless device of claim 17, wherein the maximum allowable transmission power is an allowable transmission power for the first cell.

20. The wireless device of claim 17, wherein each cell of the plurality of cells is assigned a corresponding maximum allowable transmission power.

21. The wireless device of claim 17, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

22. The wireless device of claim 17, wherein the at least one message is configured to cause configuration of the random access channel.

23. The wireless device of claim 17, wherein the control command comprises an index of the random access preamble.

24. The wireless device of claim 17, wherein the first cell is a secondary cell of a secondary cell group.

25. 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, to a wireless device, at least one message comprising configuration parameters of a plurality of cells comprising a primary cell and at least one secondary cell;

transmit, to the wireless device, a control command configured to cause the wireless device to transmit a random access preamble via a random access channel associated with a first cell of the plurality of cells; and

receive, from the wireless device, transmitted overlapping in time with a transmission of the random access preamble, and in a first subframe of the first cell, an uplink packet, wherein transmission power associated with the uplink packet is based on;

a maximum allowable transmission power associated with the first subframe of the first cell; and

a transmission power associated with the random access preamble.

26. The base station of claim 25, wherein the transmission power associated with the uplink packet is further based on:

a difference between a determined power associated with the random access preamble and the maximum allowable transmission power associated with the first subframe of the first cell, if a combined power of a determined transmission power associated with the uplink packet and the determined power associated with the random access preamble exceeds the maximum allowable transmission power.

27. The base station of claim 25, wherein the maximum allowable transmission power is an allowable transmission power for the first cell.

28. The base station of claim 25, wherein each cell of the plurality of cells is assigned a corresponding maximum allowable transmission power.

29. The base station of claim 25, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

30. The base station of claim 25, wherein the at least one message is configured to cause configuration of the random access channel.

31. The base station of claim 25, wherein the control command comprises an index of the random access preamble.

32. The base station of claim 25, wherein the first cell is a secondary cell of a secondary cell group.

33. A method comprising:

transmitting, by a base station and to a wireless device, at least one message comprising configuration parameters of a plurality of cells comprising a primary cell and at least one secondary cell;

transmitting, to the wireless device, a control command configured to cause the wireless device to transmit a random access preamble via a random access channel associated with a first cell of the plurality of cells; and

receiving, from the wireless device, transmitted overlapping in time with a transmission of the random access preamble, and in a first subframe of the first cell, an uplink packet, wherein transmission power associated with the uplink packet is based on;

a maximum allowable transmission power associated with the first subframe of the first cell; and

a transmission power associated with the random access preamble.

34. The method of claim 33, wherein the transmission power associated with the uplink packet is further based on:

a difference between a determined power associated with the random access preamble and the maximum allowable transmission power associated with the first subframe of the first cell, if a combined power of a determined transmission power associated with the uplink packet and the determined power associated with the random access preamble exceeds the maximum allowable transmission power.

35. The method of claim 33, wherein the maximum allowable transmission power is an allowable transmission power for the first cell.

36. The method of claim 33, wherein each cell of the plurality of cells is assigned a corresponding maximum allowable transmission power.

37. The method of claim 33, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

38. The method of claim 33, wherein the at least one message is configured to cause configuration of the random access channel.

39. The method of claim 33, wherein the control command comprises an index of the random access preamble.

40. The method of claim 33, wherein the first cell is a secondary cell of a secondary cell group.

41. 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 message comprising configuration parameters of a plurality of cells comprising a primary cell and at least one secondary cell; 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;

receive the at least one message;

receive, from the base station, a control command configured to cause the wireless device to transmit a random access preamble via a random access channel associated with a first cell of the plurality of cells; and

transmit, overlapping in time with a transmission of the random access preamble and in a first subframe of the first cell, an uplink packet, wherein transmission power associated with the uplink packet is based on;

a maximum allowable transmission power associated with the first subframe of the first cell; and

a transmission power associated with the random access preamble.

42. The system of claim 41, wherein the transmission power associated with the uplink packet is further based on:

a difference between a determined power associated with the random access preamble and the maximum allowable transmission power associated with the first subframe of the first cell, if a combined power of a determined transmission power associated with the uplink packet and the determined power associated with the random access preamble exceeds the maximum allowable transmission power.

43. The system of claim 41, wherein the maximum allowable transmission power is an allowable transmission power for the first cell.

44. The system of claim 41, wherein each cell of the plurality of cells is assigned a corresponding maximum allowable transmission power.

45. The system of claim 41, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

46. The system of claim 41, wherein the at least one message is configured to cause configuration of the random access channel.

47. The system of claim 41, wherein the control command comprises an index of the random access preamble.

48. The system of claim 41, wherein the first cell is a secondary cell of a secondary cell group.

49. A method comprising:

transmitting, by a base station and to a wireless device, at least one message comprising configuration parameters of a plurality of cells comprising a primary cell and at least one secondary cell;

transmitting, by the base station, a control command configured to cause the wireless device to transmit a random access preamble via a random access channel associated with a first cell of the plurality of cells; and

transmitting, by the wireless device, overlapping in time with a transmission of the random access preamble, and in a first subframe of the first cell, an uplink packet, wherein transmission power associated with the uplink packet is based on;

a maximum allowable transmission power associated with the first subframe of the first cell; and

a transmission power associated with the random access preamble.

50. The method of claim 49, wherein the transmission power associated with the uplink packet is further based on:

a difference between a determined power associated with the random access preamble and the maximum allowable transmission power associated with the first subframe of the first cell, if a combined power of a determined transmission power associated with the uplink packet and the determined power associated with the random access preamble exceeds the maximum allowable transmission power.

51. The method of claim 49, wherein the maximum allowable transmission power is an allowable transmission power for the first cell.

52. The method of claim 49, wherein each cell of the plurality of cells is assigned a corresponding maximum allowable transmission power.

53. The method of claim 49, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

54. The method of claim 49, wherein the at least one message is configured to cause configuration of the random access channel.

55. The method of claim 49, wherein the control command comprises an index of the random access preamble.

56. The method of claim 49, wherein the first cell is a secondary cell of a secondary cell group.