Transmit power control in multicarrier communications

• US 10,681,701 B2
• Filed: 07/20/2018
• Issued: 06/09/2020
• 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): Sheikh, Ayaz R
• Assistant Examiner(s): Hampton, Tarell A
• Application Number:
  US16/041,163
• Publication Number:
  US 20190215836A1
• Time in Patent Office: 690 Days
• Field of Search: None
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0078 Timing of allocation
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 52/362 Aspects of the step size
• CPC Class Codes: H04W 52/40 during macro-diversity or soft handoff
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment
• CPC Class Codes: H04W 56/0045 compensating for timing error by altering transmission time
• 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 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

Methods, apparatuses, and systems are described for wireless communications. Cells may be grouped into a plurality of cell groups. A wireless device may transmit or drop one or more of a plurality of signals.

Claims

1. A method comprising:

receiving, by a wireless device, at least one message comprising configuration parameters of;

a plurality of cells; and

a sounding reference signal (SRS) that is configured to be transmitted in a last symbol of a first subframe via a first cell of the plurality of cells;

transmitting, via a plurality of symbols of the first subframe via a second cell of the plurality of cells, a packet, wherein the plurality of symbols of the first subframe comprise the last symbol of the first subframe, wherein the wireless device has sufficient power to transmit the SRS in parallel with the packet, and wherein the first cell and second cell are different cells of a same cell group; and

based on determining whether the wireless device is configured for more than one cell group;

transmitting the SRS, if the wireless device is configured for more than one cell group; and

dropping the SRS, if the wireless device is not configured for more than one cell group.

2. The method of claim 1, further comprising determining that the wireless device has sufficient power to transmit the SRS in parallel with the packet.

3. The method of claim 1, further comprising:

based on a determination that a random access preamble is configured for transmission in one or more symbols comprising the last symbol of the first subframe;

dropping the SRS.

4. The method of claim 1, further comprising:

based on a determination that a random access preamble is not configured for transmissions in one or more symbols comprising the last symbol of the first subframe, transmitting the SRS.

5. The method of claim 1, further comprising transmitting the SRS after one or more of:

receiving a physical downlink control channel packet;

or

receiving a radio resource control message.

6. The method of claim 1, further comprising prioritizing a transmission of the SRS lower than:

a transmission of a random access preamble; and

a transmission of the packet.

7. The method of claim 1, wherein the packet comprises one or more of:

a physical uplink control channel packet;

or

a physical uplink shared channel packet.

8. 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 message comprising configuration parameters of;

a plurality of cells; and

a sounding reference signal (SRS) that is configured to be transmitted in a last symbol of a first subframe via a first cell of the plurality of cells;

transmit, via a plurality of symbols of the first subframe via a second cell of the plurality of cells, a packet, wherein the plurality of symbols of the first subframe comprise the last symbol of the first subframe, wherein the wireless device has sufficient power to transmit the SRS in parallel with the packet, and wherein the first cell and second cell are different cells of a same cell group; and

based on determining whether the wireless device is configured for more than one cell group;

transmit the SRS, if the wireless device is configured for more than one cell group; and

drop the SRS, if the wireless device is not configured for more than one cell group.

9. The wireless device of claim 8, wherein the instructions, when executed by the one or more processors, further cause the wireless device to:

determine that the wireless device has sufficient power to transmit the SRS in parallel with the packet.

10. The wireless device of claim 8, wherein the instructions, when executed by the one or more processors, cause the wireless device to:

based on a determination that a random access preamble is configured for transmission in one or more symbols comprising the last symbol of the first subframe, drop the SRS.

11. The wireless device of claim 8, wherein the instructions, when executed by the one or more processors, cause the wireless device to:

based on a determination that a random access preamble is not configured for transmissions in one or more symbols comprising the last symbol of the first subframe, transmit the SRS.

12. The wireless device of claim 8, wherein the instructions, when executed by the one or more processors, cause the wireless device to transmit the SRS after on one or more of:

a physical downlink control channel packet;

or

a radio resource control message.

13. The wireless device of claim 8, wherein the instructions, when executed by the one or more processors, further cause the wireless device to:

prioritize a transmission of the SRS lower than;

a transmission of a random access preamble; and

a transmission of the packet.

14. The wireless device of claim 8, wherein the packet comprises one or more of:

a physical uplink control channel packet;

or

a physical uplink shared channel packet.

15. 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; and

a sounding reference signal (SRS) that is configured to be transmitted in a last symbol of a first subframe via a first cell of the plurality of cells; 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, via a plurality of symbols of the first subframe via a second cell of the plurality of cells, a packet, wherein the plurality of symbols of the first subframe comprise the last symbol of the first subframe, wherein the wireless device has sufficient power to transmit the SRS in parallel with the packet, and wherein the first cell and second cell are different cells of a same cell group; and

based on determining whether the wireless device is configured for more than one cell group;

transmit the SRS, if the wireless device is configured for more than one cell group; and

drop the SRS, if the wireless device is not configured for more than one cell group.

16. The system of claim 15, wherein the instructions, when executed by the one or more processors of the wireless device, further cause the wireless device to:

determine that the wireless device has sufficient power to transmit the SRS in parallel with the packet.

17. The system of claim 15, wherein the instructions, when executed by the one or more processors of the wireless device, cause the wireless device to:

based on a determination that a random access preamble is configured for transmission in one or more symbols comprising the last symbol of the first subframe, drop the SRS.

18. The system of claim 15, wherein the instructions, when executed by the one or more processors of the wireless device, cause the wireless device to:

based on a determination that a random access preamble is not configured for transmissions in one or more symbols comprising the last symbol of the first subframe, transmit the SRS.

19. The system of claim 15, wherein the instructions, when executed by the one or more processors of the wireless device, cause the wireless device to transmit the SRS after on one or more of:

a physical downlink control channel packet;

or

a radio resource control message.

20. The system of claim 15, wherein the instructions, when executed by the one or more processors of the wireless device, further cause the wireless device to:

prioritize a transmission of the SRS lower than;

a transmission of a random access preamble; and

a transmission of the packet.

21. The system of claim 15, wherein the packet comprises one or more of:

a physical uplink control channel packet;

or

a physical uplink shared channel packet.

22. A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:

receive at least one message comprising configuration parameters of;

a plurality of cells; and

a sounding reference signal (SRS) that is configured to be transmitted in a last symbol of a first subframe via a first cell of the plurality of cells;

transmit, via a plurality of symbols of the first subframe via a second cell of the plurality of cells, a packet, wherein the plurality of symbols of the first subframe comprise the last symbol of the first subframe, wherein the wireless device has sufficient power to transmit the SRS in parallel with the packet, and wherein the first cell and second cell are different cells of a same cell group; and

based on determining whether the wireless device is configured for more than one cell group;

transmit the SRS, if the wireless device is configured for more than one cell group; and

drop the SRS, if the wireless device is not configured for more than one cell group.

23. The non-transitory computer-readable medium of claim 22, wherein the instructions, when executed, configure the wireless device to:

determine that the wireless device has sufficient power to transmit the SRS in parallel with the packet.

24. The non-transitory computer-readable medium of claim 22, wherein the instructions, when executed, configure the wireless device to:

based on a determination that a random access preamble is configured for transmission in one or more symbols comprising the last symbol of the first subframe, drop the SRS.

25. The non-transitory computer-readable medium of claim 22, wherein the instructions, when executed, configure the wireless device to:

based on a determination that a random access preamble is not configured for transmissions in one or more symbols comprising the last symbol of the first subframe,

transmit the SRS.

26. The non-transitory computer-readable medium of claim 22, wherein the instructions, when executed, configure the wireless device to transmit the SRS after on one or more of:

a physical downlink control channel packet;

or

a radio resource control message.

27. The non-transitory computer-readable medium of claim 22, wherein the instructions, when executed, configure the wireless device to:

prioritize a transmission of the SRS lower than;

a transmission of a random access preamble; and

a transmission of the packet.

28. The non-transitory computer-readable medium of claim 22, wherein the packet comprises one or more of:

a physical uplink control channel packet;

or

a physical uplink shared channel packet.