Uplink transmissions in a wireless device

• US 8,971,280 B2
• Filed: 04/14/2013
• Issued: 03/03/2015
• Est. Priority Date: 04/20/2012
• Status: Active Grant

• Current Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Original Assignee: Ofinno Technologies, LLC (Ofinno, LLC)
• Inventors: Dinan, Esmael Hejazi
• Primary Examiner(s): LIN, KENNY S
• Application Number:
  US13/862,426
• Publication Number:
  US 20130279435A1
• Time in Patent Office: 688 Days
• Field of Search: 370/328, 370/329
• US Class Current: 370/329
• 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 causing 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:

a) receiving, by a wireless device, at least one radio resource control message from a base station, said at least one radio resource control message to cause in said wireless device;

i) configuration of a plurality of cells comprising a primary cell and at least one secondary cell; and

ii) assignment of each of said at least one secondary cell to a cell group in a plurality of cell groups, each of said plurality of cell groups comprising a subset of said plurality of cells;

b) receiving, by said wireless device, a control command causing said wireless device to transmit a random access preamble on a random access channel of a first cell in a first cell group in said plurality of cell groups; and

c) transmitting, by said wireless device, overlapping in time with transmission of said random access preamble, an uplink packet on a first subframe of said first cell; and

wherein transmission power of said uplink packet is calculated considering;

i) a maximum allowable transmission power in said first subframe of said first cell; and

ii) transmission power of said random access preamble.

2. The method of claim 1, wherein said calculation of transmission power of said uplink packet comprises subtracting a calculated power of said random access preamble from said maximum allowable transmission power in said first subframe of said first cell if a summation of transmission powers of said uplink packet and said random access preamble in said first subframe of said first cell exceeds said maximum allowable transmission power.

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

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

5. The method of claim 1, wherein said uplink packet is one of the following:

a) a physical uplink shared channel data packet; and

b) a physical uplink control channel control packet.

6. The method of claim 1, wherein said at least one radio resource control message causes configuration of said random access channel.

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

8. The method of claim 1, wherein:

a) said first cell group is a secondary cell group; and

b) said first cell is a secondary cell in said secondary cell group.

9. A method comprising:

a) receiving, by a wireless device, at least one radio resource control message from a base station, said at least one radio resource control message to cause in said wireless device configuration of a plurality of cells comprising a primary cell and at least one secondary cell;

b) receiving, by said wireless device, a control command causing said wireless device to transmit a random access preamble on a random access channel of a first cell in a first cell group in said plurality of cell groups; and

c) transmitting, by said wireless device, overlapping in time with transmission of said random access preamble, an uplink packet on a first subframe of said first cell; and

wherein transmission power of said uplink packet is calculated considering;

i) a maximum allowable transmission power in said first subframe of said first cell; and

ii) transmission power of said random access preamble.

10. The method of claim 9, wherein said calculation of transmission power of said uplink packet comprises subtracting a calculated power of said random access preamble from said maximum allowable transmission power in said first subframe of said first cell if a summation of transmission powers of said uplink packet and said random access preamble in said first subframe of said first cell exceeds said maximum allowable transmission power.

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

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

13. The method of claim 9, wherein said uplink packet is one of the following:

a) a physical uplink shared channel data packet; and

b) a physical uplink control channel control packet.

14. The method of claim 9, wherein at least one radio resource control message causes configuration of said random channel.

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

16. The method of claim 9, wherein:

a) said first cell group is a secondary cell group; and

b) said first cell is a secondary cell in said secondary cell group.

17. A wireless device comprising:

a) one or more communication interfaces;

b) one or more processors; and

c) memory storing instructions that, when executed, cause said wireless device to;

i) receive at least one radio resource control message from a base station, said at least one radio resource control message to cause in said wireless device configuration of a plurality of cells comprising a primary cell and at least one secondary cell;

ii) receive a control command causing said wireless device to transmit a random access preamble on a random access channel of a first cell in a first cell group in said plurality of cell groups; and

iii) transmit, overlapping in time with transmission of said random access preamble, an uplink packet on a first subframe of said first cell; and

wherein transmission power of said uplink packet is calculated considering;

i) a maximum allowable transmission power in said first subframe of said first cell; and

ii) transmission power of said random access preamble.

18. The wireless device of claim 17, wherein said calculation of transmission power of said uplink packet comprises subtracting a calculated power of said random access preamble from said maximum allowable transmission power in said first subframe of said first cell if a summation of transmission powers of said uplink packet and said random access preamble in said first subframe of said first cell exceeds said maximum allowable transmission power.

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

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