# US 11,445,487 B2 · Single user super position transmission for future generation wireless communication systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,487 B2 - Document ID: US11445487B2 - Status: Granted - Kind: B2 - Application number: 16/010,068 - Filed: 2018-06-15 - Published: 2019-12-19 - Granted: 2022-09-13 - Earliest claimed: 2018-06-15 - Assignees: AT&T Intellectual Property I, L.P. - Applicants: AT&T Intellectual Property I, L.P. - Inventors: SaiRamesh Nammi; Arunabha Ghosh - Web page: https://patentgrep.com/patent/US11445487B2 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/0617: {for beam forming} - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling} - H04W 72/541: using the level of interference - H04W 84/042: {Public Land Mobile systems, e.g. cellular systems} - H04W 88/02: Terminal devices - H04W 88/08: Access point devices - 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) - H04B: TRANSMISSION ## Abstract A base station device can transmit data via multiple data channels to a single user equipment device. Each of the multiple data channels can be configured and scheduled via respective downlink control channels to the user equipment device. In an embodiment, the downlink control information and data can be processed in the transmitter via separate coding structures, and then the separate channel data can be combined for transmission to the mobile equipment. The data channels can use overlapping resource elements, and the receiver can use interference cancellation to remove interference from the subsequent data channel after decoding the data from the first data channel. In other embodiments, the data channels can be associated with different beamforming matrices, demodulation reference signal ports, constellation points and resource elements. ## Claims ### Claim 1 A transmitter device, comprising: a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising: receiving channel state information from a user equipment; in response to receiving the channel state information, determining a quality of an uplink channel of the user equipment based on a distance of the user equipment from the transmitter device and an estimated path loss associated with the user equipment; based on the channel state information, determining: first downlink control information associated with a first data channel to the user equipment, second downlink control information associated with a second data channel to the user equipment; transmitting the first downlink control information and the second downlink control information to the user equipment; remapping, via a first remapper, a first coding chain for a first transport block of the first data channel, resulting in first remapped data; remapping, via a second remapper, a second coding chain for a first transport block of the second data channel the second downlink control information, resulting in second remapped data; remapping, via a third remapper, a third coding chain for a second transport block of the first data channel, resulting in third remapped data; remapping, via a fourth remapper, a fourth coding chain for a second transport block of the second data channel, resulting in fourth remapped data; combining the first remapped data with the second remapped data, resulting in first combined remapped data; combining the third remapped data with the fourth remapped data, resulting in second combined remapped data; performing a first inverse Fourier transform function on the first combined remapped data, resulting in first transformed output; performing a second inverse Fourier transform function on the second combined remapped data, resulting in second transformed output; transmitting, via a first antenna, the first transformed output to the user equipment; and transmitting, via a second antenna, the second transformed output to the user equipment, wherein the first transformed output and the second transformed output are transmitted concurrently. ### Claim 2 (depends on 1) The transmitter device of claim 1, wherein a first demodulation reference signal port associated with the first data channel is different than a second demodulation reference signal port associated with the second data channel. ### Claim 3 (depends on 1) The transmitter device of claim 1, wherein a first beamforming matrix associated with the first data channel is different than a second beamforming matrix associated with the second data channel. ### Claim 4 (depends on 1) The transmitter device of claim 1, wherein a first group of constellation points associated with the first data channel is different than a second group of constellation points associated with the second data channel. ### Claim 5 (depends on 1) The transmitter device of claim 1, wherein a same resource element is associated with the first data channel and the second data channel. ### Claim 6 (depends on 1) The transmitter device of claim 1, wherein a first group of resource elements associated with the first data channel partially overlaps a second group of resource elements associated with the second data channel. ### Claim 7 (depends on 1) The transmitter device of claim 1, wherein the first downlink control information and the second downlink control information are transmitted concurrently to the user equipment. ### Claim 8 A method, comprising: based on a distance of a user equipment from a base station, comprising a processor, and an estimated path loss associated with the user equipment, determining, by the base station, a quality of an uplink channel of the user equipment; based on channel state information received from the user equipment, determining, by the base station: first downlink control information, wherein the first downlink control information configures a first data channel to the user equipment, and second downlink control information, wherein the second downlink control information configures a second data channel to the user equipment; transmitting, by the base station, the first downlink control information and the second downlink control information to the user equipment; remapping, by the base station via a first remapper, a first coding chain for a first transport block of the first data channel, resulting in first remapped data; remapping, by the base station via a second remapper, a second coding chain for a first transport block of the second data channel, resulting in second remapped data; remapping, by the base station via a third remapper, a third coding chain for a second transport block of the first data channel, resulting in third remapped data; remapping, by the base station via a fourth remapper, a fourth coding chain for a second transport block of the second data channel, resulting in fourth remapped data; combining, by the base station, the first remapped data with the second remapped data, resulting in first combined remapped data; combining, by the base station, the third remapped data with the fourth remapped data, resulting in second combined remapped data; performing, by the base station, a first inverse Fourier transform function on the first combined remapped data, resulting in first transformed output; performing, by the base station, a second inverse Fourier transform function on the second combined remapped data, resulting in second transformed output; transmitting, by the base station, via a first antenna, the first transformed output to the user equipment; and transmitting, by the base station, via a second antenna, the second transformed output to the user equipment, wherein the first transformed output and the second transformed output are transmitted concurrently. ### Claim 9 (depends on 8) The method of claim 8, wherein a first demodulation reference signal port associated with the first data channel is different than a second demodulation reference signal port associated with the second data channel. ### Claim 10 (depends on 8) The method of claim 8, wherein a first beamforming matrix associated with the first data channel is different than a second beamforming matrix associated with the second data channel. ### Claim 11 (depends on 8) The method of claim 8, wherein a first group of constellation points associated with the first data channel is different than a second group of constellation points associated with the second data channel. ### Claim 12 (depends on 8) The method of claim 8, wherein a resource element is associated with both the first data channel and the second data channel. ### Claim 13 (depends on 8) The method of claim 8, wherein a first group of resource elements associated with the first data channel is different than a second group of resource elements, and wherein the first group of resource elements comprises a sub group of resource elements of the second group of resource elements associated with the second data channel. ### Claim 14 (depends on 8) The method of claim 8, wherein the first downlink control information and the second downlink control information are transmitted concurrently to the user equipment. ### Claim 15 A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor of network equipment, facilitate performance of operations, comprising: based on a distance of a user equipment from the network equipment and an estimated path loss associated with the user equipment, determining a quality of an uplink channel of the user equipment; based on channel state information received from the user equipment, determining: first downlink control information, wherein the first downlink control information configures a first data channel to the user equipment, and second downlink control information, wherein the second downlink control information configures a second data channel to the user equipment; transmitting the first downlink control information and the second downlink control information to the user equipment; remapping, via a first remapper, a first coding chain for a first transport block of the first data channel, resulting in first remapped data; remapping, via a second remapper, a second coding chain for a first transport block of the second data channel, resulting in second remapped data; remapping, via a third remapper, a third coding chain for a second transport block of the first data channel, resulting in third remapped data; remapping, via a fourth remapper, a fourth coding chain for a second transport block of the second data channel, resulting in fourth remapped data; combining the first remapped data with the second remapped data, resulting in first combined remapped data; combining the third remapped data with the fourth remapped data, resulting in second combined remapped data; performing a first inverse Fourier transform function on the first combined remapped data, resulting in first transformed output; performing a second inverse Fourier transform function on the second combined remapped data, resulting in second transformed output; transmitting, via a first antenna, the first transformed output to the user equipment; and transmitting, via a second antenna, the second transformed output to the user equipment, wherein the first transformed output and the second transformed output are transmitted concurrently. ### Claim 16 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein a first demodulation reference signal port associated with the first data channel is different than a second demodulation reference signal port associated with the second data channel. ### Claim 17 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein a first beamforming matrix associated with the first data channel is different than a second beamforming matrix associated with the second data channel. ### Claim 18 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein a first group of constellation points associated with the first data channel is different than a second group of constellation points associated with the second data channel. ### Claim 19 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein a resource element is associated with both the first data channel and the second data channel. ### Claim 20 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein a first group of resource elements associated with the first data channel is different than a second group of resource elements, and wherein the first group of resource elements comprises a sub group of resource elements of the second group of resource elements associated with the second data channel.