ENHANCED MACHINE TYPE COMMUNICATIONS PHYSICAL UPLINK CONTROL CHANNEL DESIGN

• US 20190037376A1
• Filed: 07/25/2018
• Published: 01/31/2019
• Est. Priority Date: 07/31/2017
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Liu, Chih-Hao, Yerramalli, Srinivas, Kadous, Tamer
• Granted Patent: US 10,616,737 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 88/023 with message or information receiving capability

Abstract

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a configuration message indicating a payload size configuration for machine type communication (MTC) physical uplink control channel (PUCCH) messages. The UE may generate an MTC PUCCH message based at least in part on the payload size configuration and a PUCCH format of MTC uplink control information for transmission by the UE. The UE may transmit the MTC PUCCH message over a plurality of RBs in a frequency domain.

Claims

1. A method for wireless communication, comprising:

receiving, at a user equipment (UE), a configuration message indicating a payload size configuration for machine type communication (MTC) physical uplink control channel (PUCCH) messages;

generating an MTC PUCCH message based at least in part on the payload size configuration and a PUCCH format of MTC uplink control information for transmission by the UE; and

transmitting the MTC PUCCH message over a plurality of resource blocks (RBs) in a frequency domain.

2. The method of claim 1, further comprising:

identifying, based at least in part on the payload size configuration, a data symbol to use for modulating data bits in a computer generated sequence (CGS) of an RB of the plurality of RBs; and

modulating each CGS of the RB, wherein each CGS of the RB is modulated with a different data symbol.

3. The method of claim 1, further comprising:

identifying, based at least in part on the payload size configuration, a data symbol to use for modulating data bits in a computer generated sequence (CGS) of an RB of the plurality of RBs; and

modulating each CGS of the RB, wherein each CGS of the RB is modulated with a same data symbol.

4. The method of claim 1, further comprising:

repeating a reference signal in the plurality of RBs of the MTC PUCCH message.

5. The method of claim 1, further comprising:

applying, for the UE, a sequence to different tones of the plurality of RBs of the MTC PUCCH message, wherein the sequence is non-repeating in a frequency domain over the plurality of RBs.

6. The method of claim 5, further comprising:

applying, for the UE, a same cyclic shift to each of the plurality of RBs of the MTC PUCCH message; and

applying, for the UE, a same cover code to different symbol periods in each of the plurality of RBs of the MTC PUCCH message.

7. The method of claim 1, further comprising:

applying a first sequence to a first subset of RBs according to a first PUCCH format; and

applying a second sequence to the first subset of RBs according to a second PUCCH format, wherein the first sequence is the same as the second sequence.

8. The method of claim 7, further comprising:

applying a first cyclic shift to a first portion of the first subset of RBs; and

applying a second cyclic shift to a second portion of the first subset of RBs, wherein the first cyclic shift is different from the second cyclic shift.

9. The method of claim 7, further comprising:

using different reference signal and data symbol location configuration for a first portion of the first subset of RBs and a second portion of the first subset of RBs.

10. The method of claim 7, further comprising:

using a same base sequence for a first portion of the first subset of RBs and a second portion of the first subset of RBs.

11. A method for wireless communication, comprising:

selecting a payload size configuration for a machine type communication (MTC) physical uplink control channel (PUCCH) message from a user equipment (UE), the payload size configuration comprising a maximum amount of data available for the MTC PUCCH message;

transmitting a configuration message to the UE to indicate the payload size configuration; and

receiving the MTC PUCCH message from the UE over a plurality of resource blocks (RBs).

12. The method of claim 11, further comprising:

demodulating each CGS of the plurality of RBs of the MTC PUCCH message, wherein each CGS of the plurality of RBs is modulated with a different data symbol.

13. The method of claim 11, further comprising:

demodulating each CGS of the plurality of RBs of the MTC PUCCH message, wherein each CGS of the plurality of RBs is modulated with a same data symbol.

14. The method of claim 11, further comprising:

receiving a reference signal in the plurality of RBs of the MTC PUCCH message, wherein the reference signal is repeated in the plurality of RBs.

15. The method of claim 11, further comprising:

recovering each of the plurality of RBs of the MTC PUCCH message using a sequence applied to different tones of the plurality of RBs of the PUCCH message, wherein the sequence is non-repeating over the plurality of RBs.

16. The method of claim 11, further comprising:

reversing cyclically shifting, for the UE, each of the plurality of RBs of the MTC PUCCH message using a same cyclic shift code; and

recovering each of the plurality of RBs of the MTC PUCCH message using a same cover code.

17. The method of claim 11, further comprising:

identifying a first subset of cyclic shifts applied to a first subset of RBs according to a first PUCCH format; and

identifying a second subset of cyclic shifts applied to the first subset of RBs according to a second PUCCH format.

18. The method of claim 17, further comprising:

recovering a first portion of the first subset of RBs using a first cyclic shift; and

recovering a second portion of the first subset of RBs using a second cyclic shift, wherein the first cyclic shift is different from the second cyclic shift.

19. The method of claim 17, further comprising:

recovering, according to a different reference signal and data symbol location configuration, a first portion of the first subset of RBs and a second portion of the first subset of RBs.

20. The method of claim 17, further comprising:

recovering, according to a same base sequence, a first portion of the first subset of RBs and a second portion of the first subset of RBs.

21. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to;

receive, at a user equipment ((UE), a configuration message indicating a payload size configuration for machine type communication (MTC) physical uplink control channel (PUCCH) messages,

generate an MTC PUCCH message based at least in part on the payload size configuration and a PUCCH format of MTC uplink control information for transmission by the UE, and

transmit the MTC PUCCH message over a plurality of resource blocks (RBs) in a frequency domain.

22. The apparatus of claim 21, wherein the instructions are further executable by the processor to:

identify, based at least in part on the payload size configuration, a data symbol to use for modulating data bits in a computer generated sequence (CGS) of an RB of the plurality of RBs, and

modulate each CGS of the RB, wherein each CGS of the RB is modulated with a different data symbol.

23. The apparatus of claim 21, wherein the instructions are further executable by the processor to:

identify, based at least in part on the payload size configuration, a data symbol to use for modulating data bits in a computer generated sequence (CGS) of an RB of the plurality of RBs, and

modulate each CGS of the RB, wherein each CGS of the RB is modulated with a same data symbol.

24. The apparatus of claim 21, wherein the instructions are further executable by the processor to:

repeat a reference signal in the plurality of RBs of the MTC PUCCH message.

25. The apparatus of claim 21, wherein the instructions are further executable by the processor to:

apply, for the UE, a sequence to different tones of the plurality of RBs of the MTC PUCCH message, wherein the sequence is non-repeating in a frequency domain over the plurality of RBs.

26. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to;

select a payload size configuration for a machine type communication (MTC) physical uplink control channel (PUCCH) message from a user equipment (UE), the payload size configuration comprising a maximum amount of data available for the MTC PUCCH message,

transmit a configuration message to the UE to indicate the payload size configuration, and

receive the MTC PUCCH message from the UE over a plurality of resource blocks (RBs).

27. The apparatus of claim 26, wherein the instructions are further executable by the processor to:

demodulate each CGS of the plurality of RBs of the MTC PUCCH message, wherein each CGS of the plurality of RBs is modulated with a different data symbol.

28. The apparatus of claim 26, wherein the instructions are further executable by the processor to:

demodulate each CGS of the plurality of RBs of the MTC PUCCH message, wherein each CGS of the plurality of RBs is modulated with a same data symbol.

29. The apparatus of claim 26, wherein the instructions are further executable by the processor to:

receive a reference signal in the plurality of RBs of the MTC PUCCH message, wherein the reference signal is repeated in the plurality of RBs.

30. The apparatus of claim 26, wherein the instructions are further executable by the processor to:

recover each of the plurality of RBs of the MTC PUCCH message using a sequence applied to different tones of the plurality of RBs of the PUCCH message, wherein the sequence is non-repeating over the plurality of RBs.