Uplink transmissions in a wireless device

• US 10,523,390 B2
• Filed: 09/18/2017
• Issued: 12/31/2019
• Est. Priority Date: 04/16/2012
• 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:
  US15/707,275
• Publication Number:
  US 20180249427A1
• Time in Patent Office: 834 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

Methods and apparatuses are described for wireless communications. Cells may be grouped into a plurality of cell groups. A wireless device may transmit an uplink packet overlapping in time with a transmission of a random access preamble. Transmission power of the uplink packet may be adjusted based on an allowable transmission power 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;

determining a total transmission power value comprising;

a first transmission power value for a random access preamble transmission, via a random access channel of a first cell of the plurality of cells, overlapping in time with a transmission of an uplink packet via the first cell; and

a second transmission power value for the uplink packet;

transmitting, via the first cell and at the first transmission power value, the random access preamble; and

based on the total transmission power value exceeding an allowable transmission power, transmitting, via the first cell, at an adjusted transmission power, and overlapping in time with the transmitting the random access preamble, the uplink packet.

2. The method of claim 1, wherein the adjusted transmission power is a transmission power adjusted downward with respect to the second transmission power value.

3. The method of claim 1, wherein the total transmission power value exceeds the allowable transmission power.

4. The method of claim 3, wherein the adjusted transmission power is based on a difference, for a first subframe of the first cell, between the first transmission power value for the random access preamble and the allowable transmission power.

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

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

7. 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.

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

9. The method of claim 1, further comprising receiving, by the wireless device, a control command configured to cause the wireless device to transmit the random access preamble via the random access channel of the first cell, wherein the control command comprises an index of the random access preamble.

10. The method of claim 1, wherein the first cell is a secondary cell of a secondary cell group.

11. 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;

determining a total transmission power value comprising;

a first transmission power value for a random access preamble transmission, via a random access channel of a first cell of the plurality of cells, overlapping in time with a transmission of an uplink packet via the first cell; and

a second transmission power value for the uplink packet;

transmitting, by the wireless device, to the base station, via the first cell, and at the first transmission power value, the random access preamble; and

based on the total transmission power value exceeding an allowable transmission power, transmitting, by the wireless device, to the base station, via the first cell, at an adjusted transmission power, and overlapping in time with the transmitting the random access preamble, the uplink packet.

12. The method of claim 11, wherein the adjusted transmission power is a transmission power adjusted downward with respect to the second transmission power value.

13. The method of claim 11, wherein the total transmission power value exceeds the allowable transmission power.

14. The method of claim 13, wherein the adjusted transmission power is based on a difference, for a first subframe of the first cell, between the first transmission power value for the random access preamble and the allowable transmission power.

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

16. The method of claim 11, wherein each cell of the plurality of cells is assigned a corresponding allowable transmission power.

17. The method of claim 11, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

18. The method of claim 11, wherein the at least one message is configured to cause configuration of the random access channel.

19. The method of claim 11, further comprising receiving, by the wireless device, a control command configured to cause the wireless device to transmit the random access preamble via the random access channel of the first cell, wherein the control command comprises an index of the random access preamble.

20. The method of claim 11, wherein the first cell is a secondary cell of a secondary cell group.

21. 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;

determine a total transmission power value comprising;

a first transmission power value for a random access preamble transmission, via a random access channel of a first cell of the plurality of cells, overlapping in time with a transmission of an uplink packet via the first cell; and

a second transmission power value for the uplink packet;

transmit, via the first cell and at the first transmission power value, the random access preamble; and

based on the total transmission power value exceeding an allowable transmission power, transmit, via the first cell, at an adjusted transmission power, and overlapping in time with the transmission of the random access preamble, the uplink packet.

22. The wireless device of claim 21, wherein the instructions, when executed by the one or more processors, cause the wireless device to adjust a transmission power downward with respect to the second transmission power value.

23. The wireless device of claim 21, wherein the total transmission power value exceeds the allowable transmission power.

24. The wireless device of claim 23, wherein the adjusted transmission power is based on a difference, for a first subframe of the first cell, between the first transmission power value for the random access preamble and the allowable transmission power.

25. The wireless device of claim 21, wherein the allowable transmission power is an allowable transmission power for the first cell.

26. The wireless device of claim 21, wherein each cell of the plurality of cells is assigned a corresponding allowable transmission power.

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

28. The wireless device of claim 21, wherein the at least one message is configured to cause configuration of the random access channel.

29. The wireless device of claim 21, wherein the instructions, when executed by the one or more processors, cause the wireless device to receive a control command, and wherein the control command comprises an index of the random access preamble and is configured to cause the wireless device to transmit the random access preamble via the random access channel of the first cell.

30. The wireless device of claim 21, wherein the first cell is a secondary cell of a secondary cell group.

31. A system comprising:

a base station and a wireless device;

wherein the base station comprises;

first one or more processors; and

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

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

wherein the wireless device comprises;

second one or more processors; and

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

determine a total transmission power value comprising;

a first transmission power value for a random access preamble transmission, via a random access channel of a first cell of the plurality of cells, overlapping in time with a transmission of an uplink packet via the first cell; and

a second transmission power value for the uplink packet;

transmit, to the base station, via the first cell, and at the first transmission power value, the random access preamble; and

based on the total transmission power value exceeding an allowable transmission power, transmit, via the first cell, at an adjusted transmission power, and overlapping in time with the transmission of the random access preamble, the uplink packet.

32. The system of claim 31, wherein the second instructions, when executed by the second one or more processors, cause the wireless device to adjust a transmission power downward with respect to the second transmission power value.

33. The system of claim 31, wherein the total transmission power value exceeds the allowable transmission power.

34. The system of claim 33, wherein the adjusted transmission power is based on a difference, for a first subframe of the first cell, between the first transmission power value for the random access preamble and the allowable transmission power.

35. The system of claim 31, wherein the allowable transmission power is an allowable transmission power for the first cell.

36. The system of claim 31, wherein each cell of the plurality of cells is assigned a corresponding allowable transmission power.

37. The system of claim 31, wherein the uplink packet is a physical uplink shared channel data packet or a physical uplink control channel control packet.

38. The system of claim 31, wherein the at least one message is configured to cause configuration of the random access channel.

39. The system of claim 31, wherein the second instructions, when executed by the second one or more processors, cause the wireless device to receive a control command, and wherein the control command comprises an index of the random access preamble and is configured to cause the wireless device to transmit the random access preamble via the random access channel of the first cell.

40. The system of claim 31, wherein the first cell is a secondary cell of a secondary cell group.