# US 10,122,506 B2 · Single TTI transmission of control data in wireless communications > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,122,506 B2 - Document ID: US10122506B2 - Status: Granted - Kind: B2 - Application number: 14/946,448 - Filed: 2015-11-19 - Published: 2016-06-23 - Granted: 2018-11-06 - Earliest claimed: 2014-12-23 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Shimman Arvind Patel; Wanshi Chen; Peter Gaal - Web page: https://patentgrep.com/patent/US10122506B2 ## CPC - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 25/0226: {sounding signals per se} - H04L 27/2614: {Peak power aspects} - H04L 27/34: Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/20: Control channels or signalling for resource management - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Various aspects described herein relate to wireless communications, including generating a waveform including a combined reference signal and control data signal, the reference signal and the control data signal being phase offset from one another in the waveform, and transmitting the waveform on one resource block in a transmission time interval having a duration that is less than a subframe. ## Claims ### Claim 1 A method of wireless communication, comprising: generating a waveform including a combined signal including a reference signal and control data signal, wherein the reference signal and the control data signal are phase offset from one another in the waveform; and transmitting, over a transmission time interval (TTI) having a duration that is less than a subframe, the waveform including the combined signal on one resource block, wherein the duration of the TTI is of a two-symbol duration, wherein transmitting the waveform comprises transmitting the waveform on a first symbol of the TTI, and transmitting the waveform on a different resource block in a second symbol of the TTI, wherein the different resource block is of a different frequency than the one resource block. ### Claim 2 (depends on 1) The method of claim 1, wherein generating the waveform comprises combining the reference signal as a base sequence with the control data signal, wherein the control data signal comprises the base sequence combined with control data. ### Claim 3 (depends on 2) The method of claim 2, wherein the control data is modulated using a quadrature phase shift keying (QPSK) constellation or a 16-quadrature amplitude modulation (QAM) constellation. ### Claim 4 (depends on 3) The method of claim 3, wherein the QPSK constellation or the 16-QAM constellation is selected to decrease a peak-to-average power ratio (PAPR) of the waveform. ### Claim 5 (depends on 3) The method of claim 3, further comprising setting the QPSK constellation or the 16-QAM constellation to zero to indicate feedback of discontinuous transmission (DTX) in the control data. ### Claim 6 (depends on 1) The method of claim 1, wherein the phase offset comprises a first phase offset for the reference signal, and a second phase offset for the control data signal, wherein the first phase offset is different from the second phase offset. ### Claim 7 (depends on 1) The method of claim 1, wherein the control data signal includes hybrid automatic repeat/request (HARQ) feedback. ### Claim 8 A user equipment for wireless communication, comprising: a transceiver; at least one processor communicatively coupled with the transceiver via a bus; and a memory communicatively coupled with the at least one processor and/or the transceiver via the bus; wherein the at least one processor is configured to: generate a waveform including a combined signal including a reference signal and control data signal, wherein the reference signal and the control data signal are phase offset from one another in the waveform; and transmit, via the transceiver over a transmission time interval (TTI) having a duration that is less than a subframe, the waveform including the combined signal on one resource block, wherein the duration of the TTI is of a two-symbol duration, wherein the at least one processor is configured to transmit the waveform on a first symbol of the TTI, and transmit the waveform on a different resource block in a second symbol of the TTI, wherein the different resource block is of a different frequency than the one resource block. ### Claim 9 (depends on 8) The user equipment of claim 8, wherein the at least one processor is further configured to generate the waveform at least in part by combining the reference signal as a base sequence with the control data signal, wherein the control data signal comprises the base sequence combined with control data. ### Claim 10 (depends on 9) The user equipment of claim 9, wherein the control data is modulated using a quadrature phase shift keying (QPSK) constellation or a 16-quadrature amplitude modulation (QAM) constellation. ### Claim 11 (depends on 10) The user equipment of claim 10, wherein the QPSK constellation or the 16-QAM constellation is selected to decrease a peak-to-average power ratio (PAPR) of the waveform. ### Claim 12 (depends on 10) The user equipment of claim 10, the at least one processor is further configured to set the QPSK constellation or the 16-QAM constellation to zero to indicate feedback of discontinuous transmission (DTX) in the control data. ### Claim 13 (depends on 8) The user equipment of claim 8, wherein the phase offset comprises a first phase offset for the reference signal, and a second phase offset for the control data signal, wherein the first phase offset is different from the second phase offset. ### Claim 14 (depends on 8) The user equipment of claim 8, wherein the control data signal includes hybrid automatic repeat/request (HARQ) feedback. ### Claim 15 A user equipment for communications, comprising: means for generating a waveform including a combined signal including a reference signal and control data signal, wherein the reference signal and the control data signal are phase offset from one another in the waveform; and means for transmitting, over a transmission time interval (TTI) having a duration that is less than a subframe, the waveform including the combined signal on one resource block, wherein the duration of the TTI is of a two-symbol duration, wherein the means for transmitting the waveform transmits the waveform on a first symbol of the TTI, and transmits the waveform on a different resource block in a second symbol of the TTI, wherein the different resource block is of a different frequency than the one resource block. ### Claim 16 (depends on 15) The user equipment of claim 15, wherein the means for generating the waveform is further configured to combine the reference signal as a base sequence with the control data signal, wherein the control data signal comprises the base sequence combined with control data. ### Claim 17 (depends on 16) The user equipment of claim 16, wherein the control data is modulated using a quadrature phase shift keying (QPSK) constellation or a 16-quadrature amplitude modulation (QAM) constellation. ### Claim 18 (depends on 17) The user equipment of claim 17, wherein the QPSK constellation or the 16-QAM constellation is selected to decrease a peak-to-average power ratio (PAPR) of the waveform. ### Claim 19 (depends on 17) The user equipment of claim 17, further comprising means for setting the QPSK constellation or the 16-QAM constellation to zero to indicate feedback of discontinuous transmission (DTX) in the control data. ### Claim 20 (depends on 15) The user equipment of claim 15, wherein the phase offset comprises a first phase offset for the reference signal, and a second phase offset for the control data signal, wherein the first phase offset is different from the second phase offset. ### Claim 21 A non-transitory computer-readable storage medium comprising computer-executable code, comprising code to: generate a waveform including a combined signal including a reference signal and control data signal, wherein the reference signal and the control data signal are phase offset from one another in the waveform; and transmit, over a transmission time interval (TTI) having a duration that is less than a subframe, the waveform including the combined signal on one resource block, wherein the duration of the TTI is of a two-symbol duration, wherein the code to transmit the waveform transmits the waveform on a first symbol of the TTI, and transmits the waveform on a different resource block in a second symbol of the TTI, wherein the different resource block is of a different frequency than the one resource block. ### Claim 22 (depends on 21) The non-transitory computer-readable storage medium of claim 21, wherein the code further combines the reference signal as a base sequence with the control data signal, wherein the control data signal comprises the base sequence combined with control data. ### Claim 23 (depends on 22) The non-transitory computer-readable storage medium of claim 22, wherein the control data is modulated using a quadrature phase shift keying (QPSK) constellation or a 16-quadrature amplitude modulation (QAM) constellation. ### Claim 24 (depends on 23) The non-transitory computer-readable storage medium of claim 23, wherein the QPSK constellation or the 16-QAM constellation is selected to decrease a peak-to-average power ratio (PAPR) of the waveform. ### Claim 25 (depends on 23) The non-transitory computer-readable storage medium of claim 23, the code further configured to set the QPSK constellation or the 16-QAM constellation to zero to indicate feedback of discontinuous transmission (DTX) in the control data. ### Claim 26 (depends on 21) The non-transitory computer-readable storage medium of claim 21, wherein the phase offset comprises a first phase offset for the reference signal, and a second phase offset for the control data signal, wherein the first phase offset is different from the second phase offset.