# US 2014/0153502 A1 · Wireless link method and system using multiband > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153502 A1 - Document ID: US20140153502A1 - Status: Published application - Kind: A1 - Application number: 13/953,312 - Filed: 2013-07-29 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: Electronics and Telecommunications Research Institute - Applicants: Electronics and Telecommunications Research Institute - Inventors: Bong Su KIM; Min Soo KANG; Kwang Seon KIM; Woo Jin BYUN - Web page: https://patentgrep.com/patent/US20140153502A1 ## CPC - H04L 1/0001: {Systems modifying transmission characteristics according to link quality, e.g. power backoff (adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04)} - H04B 1/0064: {with separate antennas for the more than one band (H04B1/0053 takes precedence)} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION ## Abstract Provided is a wireless link system using a multiband, the system including: a common baseband module to operate in a first frequency band and a second frequency band higher than the first frequency band; at least one low radio frequency (RF) module to process a signal output from the common baseband module in the first frequency band; at least one high RF module to process a signal output from the common baseband module in the second frequency band; a plurality of antennas electrically connected to the at least one low RF module and the at least one high RF module; and a control unit to adaptively allocate a control signal and data to the at least one low RF module and the at least one high RF module based on state information of a wireless channel. ## Claims ### Claim 1 A wireless link system using a multiband, the system comprising: a common baseband module to operate in a first frequency band and a second frequency band higher than the first frequency band; at least one low radio frequency (RF) module to process a signal output from the common baseband module in the first frequency band; at least one high RF module to process a signal output from the common baseband module in the second frequency band; a plurality of antennas electrically connected to the at least one low RF module and the at least one high RF module; and a control unit to adaptively allocate a control signal and data to the at least one low RF module and the at least one high RF module based on state information of a wireless channel. ### Claim 2 (depends on 1) The system of claim 1, wherein when a data transmission and reception rate of the second frequency band is greater than or equal to a first parameter, the control unit allocates the control signal to the at least one low RF module and allocates the data to the at least one high RF module. ### Claim 3 (depends on 2) The system of claim 2, wherein when the data transmission and reception rate of the second frequency band is less than or equal to a second parameter, the control unit allocates a portion of the data and the control signal to the at least one low RF module and allocates the data to the at least one high RF module. ### Claim 4 (depends on 3) The system of claim 3, wherein when the data transmission and reception rate of the second frequency band is less than or equal to a third parameter that is less than the second parameter, the control unit allocates the control signal and the data to the (*at least one low RF module without using the at least one high RF module. ### Claim 5 (depends on 1) The system of claim 1, wherein state information of the wireless channel is obtained based on information about the data or is received from the at least one low RF module. ### Claim 6 A wireless link method using a multiband, the method comprising: outputting a signal of each of a first frequency band and a second frequency band higher than the first frequency band using a common baseband module; adaptively allocating a control signal and data to at least one low radio frequency (RF) module electrically connected to at least one antenna, and at least one high RF module electrically connected to at least one antenna, based on state information of a wireless channel; processing the signal of the first frequency band using the at least one low RF module; and processing the signal of the second frequency band using the at least one high RF module. ### Claim 7 A wireless link system using a multiband, the system comprising: a common baseband module to operate in a first frequency band and a second frequency band higher than the first frequency band; at least one low radio frequency (RF) module to process a signal output from the common baseband module in the first frequency band; at least one high RF module to process a signal output from the common baseband module in the second frequency band; a plurality of antennas electrically connected to the at least one low RF module and the at least one high RF module; and a control unit to adaptively connect the at least one low RF module and the at least one high RF module to an uplink and a downlink based on state information of a wireless channel. ### Claim 8 (depends on 7) The system of claim 7, wherein when a data transmission and reception rate of the second frequency band is greater than or equal to a first parameter, the control unit connects the at least one low RF module to the uplink and connects the at least one high RF module to the downlink. ### Claim 9 (depends on 8) The system of claim 8, wherein when the data transmission and reception rate of the second frequency band is less than or equal to a second parameter, the control unit adjusts a data amount of signals processed by the at least one low RF module and the at least one high RF module. ### Claim 10 (depends on 9) The system of claim 9, wherein when the data transmission and reception rate of the second frequency band is less than or equal to a third parameter that is less than the second parameter, the control unit connects the at least one low frequency RF band to the uplink and the downlink without using the at least one high RF module. ### Claim 11 A wireless link method using a multiband, the method comprising: outputting a signal of each of a first frequency band and a second frequency band higher than the first frequency band using a common baseband module; adaptively connecting, to an uplink and a downlink, at least one low radio frequency (RF) module electrically connected to at least one antenna, and at least one high RF module electrically connected to at least one antenna; processing the signal of the first frequency band using the at least one low RF module; and processing the signal of the second frequency band using the at least one high RF module.