# US 12,192,124 B2 · Multi-band channel aggregation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,124 B2 - Document ID: US12192124B2 - Status: Granted - Kind: B2 - Application number: 17/682,717 - Filed: 2022-02-28 - Published: 2022-10-13 - Granted: 2025-01-07 - Earliest claimed: 2007-03-07 - Assignees: Wi-LAN, Inc. - Applicants: Wi-LAN Inc. - Inventors: Kenneth L. Stanwood; Ramon Khalona; Lei Wang; Yair Bourlas; Gene W. Marsh; Robert P. Gilmore; Ron Porat; Paul W. Piggin - Web page: https://patentgrep.com/patent/US12192124B2 ## CPC - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 1/18: Automatic repetition systems, e.g. Van Duuren systems - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/06: the signals being represented by different frequencies (combined with time-division multiplexing H04L5/26) - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04L 27/265: {Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators (H04L27/26524 takes precedence)} - H04W 72/04: Wireless resource allocation - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 76/15: Setup of multiple wireless link connections - 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 Multiple channels are aggregated. In an example embodiment, first data is transmitted on a first channel to a wireless device, and second data is simultaneously transmitted on a second channel to the wireless device. The first data and the second data are transmitted in a coordinated manner by aggregating the first channel and the second channel. Various example channel characteristics and combinations thereof are described. Different data allocation options for aggregated channels are described. Other alternative implementations are also presented herein. ## Claims ### Claim 1 A wireless device comprising: a receiver; and a processor; the receiver configured to: receive a first subframe via a first orthogonal frequency division multiplexing (OFDM) communication channel that includes a first set of OFDM subcarriers used for data and control, the first set of OFDM subcarriers spanning an entire bandwidth of the first OFDM communication channel, the first OFDM communication channel having a single, first carrier frequency, wherein first control information is transmitted spanning the entire bandwidth of the first OFDM communication channel, the first control information is located in a front portion of the first subframe and data is located in a remaining portion; and receive a second subframe via a second OFDM communication channel that includes a second set of OFDM subcarriers used for data and control, the second set of OFDM subcarriers spanning an entire bandwidth of the second OFDM communication channel, the second OFDM communication channel having a single, second carrier frequency, wherein second control information is transmitted spanning the entire bandwidth of the second OFDM communication channel, the second control information is located in a front portion of the second subframe and data is located in a remaining portion; wherein downlink assignments are received via at least one of the first control information or the second control information, wherein the downlink assignments assign OFDM subcarriers on a subframe basis and the downlink assignments indicate a first group of OFDM subcarriers of the first set of OFDM subcarriers and a second group of OFDM subcarriers of the second set of OFDM subcarriers; wherein a first portion of data for a single service is received via the first group of OFDM subcarriers and a second portion of data for the single service is received via the second group of OFDM subcarriers, wherein the first portion of data is received at least in-part simultaneously with the second portion of data; and the processor is configured to combine the first portion of data for the single service with the second portion of data for the single service to produce integrated data. ### Claim 2 (depends on 1) The wireless device of claim 1, wherein the first OFDM communication channel is received using frequency division duplexing (FDD) and the second OFDM communication channel is received using time division duplexing (TDD). ### Claim 3 (depends on 1) The wireless device of claim 1, wherein the first OFDM communication channel is in a first Federal Communications Commission (FCC) band and the second OFDM communication channel is in a second FCC band that is different than the first FCC band. ### Claim 4 (depends on 3) The wireless device of claim 3, wherein the first FCC band is licensed to a service provider and the second FCC band is not licensed to the service provider. ### Claim 5 (depends on 1) The wireless device of claim 1, wherein the first communication channel uses a different wireless scheme than the second communication channel. ### Claim 6 (depends on 1) The wireless device of claim 1, wherein the first communication channel uses a different medium access control (MAC) layer than the second communication channel. ### Claim 7 (depends on 1) The wireless device of claim 1, wherein the downlink assignments are based on a quality of service. ### Claim 8 (depends on 1) The wireless device of claim 1, wherein the data for the single service is routed to at least one of the first OFDM communication channel or the second OFDM communication channel based on a quality of service. ### Claim 9 (depends on 1) The wireless device of claim 1, wherein the receiver is further configured to receive data for a second service via only one of the first OFDM communication channel or the second OFDM communication channel. ### Claim 10 (depends on 1) The wireless device of claim 1, wherein the combined data for the single service is integrated data. ### Claim 11 (depends on 1) The wireless device of claim 1, wherein a gap exists between the first OFDM communication channel and the second OFDM communication channel wherein no OFDM subcarriers are transmitted in the gap. ### Claim 12 (depends on 1) The wireless device of claim 1, wherein the first OFDM communication channel is independently and properly formed and the second OFDM communication channel is independently and properly formed. ### Claim 13 (depends on 1) The wireless device of claim 1, wherein the first OFDM communication channel belongs to a first cell and the second OFDM communication channel belongs to a second cell, and wherein the first cell is larger than the second cell. ### Claim 14 (depends on 1) The wireless device of claim 1, wherein the receiver includes a first radio and a second radio, wherein the first radio is configured to receive the first transmission and the second radio is configured to receive the second transmission. ### Claim 15 (depends on 1) The wireless device of claim 1, wherein the downlink assignments assign resources based on channel conditions of the first OFDM communication channel and the second OFDM communication channel. ### Claim 16 (depends on 1) The wireless device of claim 1, wherein the first portion of data for the single service and the second portion of data for the single service is received with automatic repeat request (ARQ) sequence numbers; and wherein the processor is further configured to combine the first portion of data for the single service with the second portion of data for the single service using the ARQ sequence numbers. ### Claim 17 (depends on 1) The wireless device of claim 1, wherein the first set of OFDM subcarriers is formed from a first inverse fast Fourier transform (IFFT) and the second set of OFDM subcarriers is formed from a second IFFT, and wherein the first IFFT is different than the second IFFT. ### Claim 18 (depends on 1) The wireless device of claim 1, wherein the first group of OFDM subcarriers is a subset of the first set of OFDM subcarriers and the second group of OFDM subcarriers is a subset of the second set of OFDM subcarriers. ### Claim 19 A method performed by a wireless device, the method comprising: receiving a first subframe via a first orthogonal frequency division multiplexing (OFDM) communication channel that includes a first set of OFDM subcarriers used for data and control, the first set of OFDM subcarriers spanning an entire bandwidth of the first OFDM communication channel, the first OFDM communication channel having a single, first carrier frequency, wherein first control information is transmitted spanning the entire bandwidth of the first OFDM communication channel, the first control information is located in a front portion of the first subframe and data is located in a remaining portion; receiving a second subframe via a second OFDM communication channel that includes a second set of OFDM subcarriers used for data and control, the second set of OFDM subcarriers spanning an entire bandwidth of the second OFDM communication channel, the second OFDM communication channel having a single, second carrier frequency, wherein second control information is transmitted spanning the entire bandwidth of the second OFDM communication channel, the second control information is located in a front portion of the second subframe and data is located in a remaining portion; wherein downlink assignments are received via at least one of the first control information or the second control information, wherein the downlink assignments assign OFDM subcarriers on a subframe basis and the downlink assignments indicate a first group of OFDM subcarriers of the first set of OFDM subcarriers and a second group of OFDM subcarriers of the second set of OFDM subcarriers; wherein a first portion of data for a single service is received via the first group of OFDM subcarriers and a second portion of data for the single service is received via the second group of OFDM subcarriers, wherein the first portion of data is received at least in-part simultaneously with the second portion of data; and combining the first portion of data for the single service with the second portion of data for the single service to produce integrated data. ### Claim 20 (depends on 19) The method of claim 19, wherein the first OFDM communication channel is received using frequency division duplexing (FDD) and the second OFDM communication channel is received using time division duplexing (TDD). ### Claim 21 (depends on 19) The method of claim 19, wherein the first OFDM communication channel is in a first Federal Communications Commission (FCC) band and the second OFDM communication channel is in a second FCC band that is different than the first FCC band. ### Claim 22 (depends on 21) The method of claim 21, wherein the first FCC band is licensed to a service provider and the second FCC band is not licensed to the service provider. ### Claim 23 (depends on 19) The method of claim 19, wherein the first communication channel uses a different wireless scheme than the second communication channel. ### Claim 24 (depends on 19) The method of claim 19, wherein the first communication channel uses a different medium access control (MAC) layer than the second communication channel. ### Claim 25 (depends on 19) The method of claim 19, wherein the downlink assignments are based on a quality of service. ### Claim 26 (depends on 19) The method of claim 19, wherein the data for the single service is routed to at least one of the first OFDM communication channel or the second OFDM communication channel based on a quality of service. ### Claim 27 (depends on 19) The method of claim 19, further comprising receiving data for a second service via only one of the first OFDM communication channel or the second OFDM communication channel. ### Claim 28 (depends on 19) The method of claim 19, wherein the combined data for the single service is integrated data. ### Claim 29 (depends on 19) The method of claim 19, wherein a gap exists between the first OFDM communication channel and the second OFDM communication channel wherein no OFDM subcarriers are transmitted in the gap. ### Claim 30 (depends on 19) The method of claim 19, wherein the first OFDM communication channel is independently and properly formed and the second OFDM communication channel is independently and properly formed. ### Claim 31 (depends on 19) The method of claim 19, wherein the first OFDM communication channel belongs to a first cell and the second OFDM communication channel belongs to a second cell, and wherein the first cell is larger than the second cell. ### Claim 32 (depends on 19) The method of claim 19, wherein the receiver includes a first radio and a second radio, wherein the first radio is configured to receive the first transmission and the second radio is configured to receive the second transmission. ### Claim 33 (depends on 19) The method of claim 19, wherein the downlink assignments assign resources based on channel conditions of the first OFDM communication channel and the second OFDM communication channel. ### Claim 34 (depends on 19) The method of claim 19, wherein the first portion of data for the single service and the second portion of data for the single service is received with automatic repeat request (ARQ) sequence numbers; and wherein the processor is further configured to combine the first portion of data for the single service with the second portion of data for the single service using the ARQ sequence numbers. ### Claim 35 (depends on 19) The method of claim 19, wherein the first set of OFDM subcarriers is formed from a first inverse fast Fourier transform (IFFT) and the second set of OFDM subcarriers is formed from a second IFFT, and wherein the first IFFT is different than the second IFFT. ### Claim 36 (depends on 19) The method of claim 19, wherein the first group of OFDM subcarriers is a subset of the first set of OFDM subcarriers and the second group of OFDM subcarriers is a subset of the second set of OFDM subcarriers.