# US 10,772,084 B2 · Method and apparatus for scheduling information for a downlink data channel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,772,084 B2 - Document ID: US10772084B2 - Status: Granted - Kind: B2 - Application number: 15/866,191 - Filed: 2018-01-09 - Published: 2018-07-12 - Granted: 2020-09-08 - Earliest claimed: 2017-01-09 - Assignees: Motorola Mobility LLC - Applicants: Motorola Mobility LLC - Inventors: Hyejung Jung; Ravikiran Nory; Vijay Nangia; Robert Love - Web page: https://patentgrep.com/patent/US10772084B2 ## CPC - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04J 1/04: Frequency-transposition arrangements {(modulation with carrier or side-band suppression H03C1/52, H03C1/60; single-band suppression H04B1/00, H04B15/00; telegraphic communication H04L27/02, H04L25/49; transference of modulation from one carrier to another, e.g. frequency- changing H03D7/00; demodulation or transference of modulation of modulated electromagnetic waves H03D9/00)} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 72/1215: {for collaboration of different radio technologies} - H04W 72/1268: of uplink data flows - H04W 72/1273: of downlink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04J 2011/0016: {with FDM/FDMA and TDM/TDMA} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method and apparatus provide for scheduling information for a downlink data channel. Scheduling information can be transmitted to a user equipment regarding a downlink data channel in a slot. The scheduling information can include information regarding at least a set of allocated subcarriers. The downlink data channel can require the user equipment to send an immediate hybrid automatic repeat request acknowledgement feedback within the slot. Downlink data can be transmitted using every x-th subcarrier among the allocated subcarriers in the last symbol of the downlink data channel. ## Claims ### Claim 1 A method comprising: transmitting scheduling information to a user equipment regarding a downlink data channel in a slot, where the scheduling information includes information regarding at least a set of allocated subcarriers and the downlink data channel requires the user equipment to send an immediate hybrid automatic repeat request acknowledgement feedback within the slot; and transmitting downlink data by using every x-th subcarrier among the allocated subcarriers in the last symbol of the downlink data channel, wherein every x-th subcarrier comprises every subcarrier that skips a number of subcarriers, wherein the method further comprises setting a value of x based on user equipment processing capability corresponding to at least the user equipment processing time of downlink data and indicating to the user equipment the value of x, and wherein x comprises a positive integer greater than one. ### Claim 2 (depends on 1) The method according to claim 1, wherein the user equipment receives only a first part of time-domain samples out of x repeated samples in the last symbol of the downlink data channel. ### Claim 3 (depends on 1) The method according to claim 1, wherein the user equipment demodulates and decodes the downlink data channel by employing a first fast Fourier transform size in symbols except for the last symbol and a second fast Fourier transform size in the last symbol. ### Claim 4 (depends on 3) The method according to claim 3, wherein the second fast Fourier transform size is smaller than the first fast Fourier transform size by a factor of a value of x. ### Claim 5 An apparatus comprising: a controller that controls operations of the apparatus; and a transceiver coupled to the controller, where the transceiver transmits scheduling information to a user equipment regarding a downlink data channel in a slot, wherein scheduling information includes information regarding at least a set of allocated subcarriers and the downlink data channel requires the user equipment to send an immediate hybrid automatic repeat request acknowledgement feedback within the slot, and transmits downlink data by using every x-th subcarrier among the allocated subcarriers in the last symbol of the downlink data channel, wherein every x-th subcarrier comprises every subcarrier that skips a number of subcarriers, wherein the controller sets a value of x based on user equipment processing capability corresponding to at least the user equipment processing time of downlink data and indicates to the user equipment the value of x, and wherein x comprises a positive integer greater than one. ### Claim 6 (depends on 5) The apparatus according to claim 5, wherein the user equipment receives only a first part of time-domain samples out of x repeated samples in the last symbol of the downlink data channel. ### Claim 7 A method comprising: receiving scheduling information from a network entity at a user equipment, the scheduling information regarding a downlink data channel in a slot, where the scheduling information includes information regarding at least a set of allocated subcarriers and the downlink data channel requires the user equipment to send an immediate hybrid automatic repeat request acknowledgement feedback within the slot; receiving downlink data by using every x-th subcarrier among the allocated subcarriers in the last symbol of the downlink data channel; and transmitting a hybrid automatic repeat request acknowledgement in response to receiving the downlink data, wherein every x-th subcarrier comprises every subcarrier that skips a number of subcarriers, and wherein the method further comprises receiving a value of x that is set based on user equipment processing capability corresponding to at least user equipment processing time of downlink data, and wherein x comprises a positive integer greater than one. ### Claim 8 (depends on 7) The method according to claim 7, further comprising receiving only a first part of time-domain samples out of x repeated samples in the last symbol of the downlink data channel. ### Claim 9 (depends on 8) The method according to claim 8, further comprising using remaining time, after receiving only a first part of time-domain samples in the last symbol, for processing time of decoding downlink data. ### Claim 10 (depends on 7) The method according to claim 7, further comprising demodulating and decoding the downlink data channel by employing a first fast Fourier transform size in symbols except for the last symbol and a second fast Fourier transform size in the last symbol. ### Claim 11 (depends on 10) The method according to claim 10, wherein the second fast Fourier transform size is smaller than the first fast Fourier transform size by a factor of x. ### Claim 12 An apparatus comprising: a controller that controls operations of the apparatus; and a transceiver that receives scheduling information from a network entity, the scheduling information regarding a downlink data channel in a slot, where the scheduling information includes information regarding at least a set of allocated subcarriers and the downlink data channel requires the user equipment to send an immediate hybrid automatic repeat request acknowledgement feedback within the slot, receives downlink data by using every x-th subcarrier among the allocated subcarriers in the last symbol of the downlink data channel, and transmits a hybrid automatic repeat request acknowledgement in response to receiving the downlink data, wherein every x-th subcarrier comprises every subcarrier that skips a number of subcarriers, wherein the transceiver receives a value of x that is set based on a processing capability of the apparatus corresponding to at least apparatus processing time of downlink data, and wherein x comprises a positive integer greater than one. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the transceiver receives only a first part of time-domain samples out of x repeated samples in the last symbol of the downlink data channel.