# US 10,772,093 B2 · Communication control device, communication control method, and communication device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,772,093 B2 - Document ID: US10772093B2 - Status: Granted - Kind: B2 - Application number: 16/053,288 - Filed: 2018-08-02 - Published: 2018-11-29 - Granted: 2020-09-08 - Earliest claimed: 2013-03-07 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Ryo Sawai - Web page: https://patentgrep.com/patent/US10772093B2 ## CPC - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04B 15/00: Suppression or limitation of noise or interference (by means associated with receiver H04B1/10) - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/20: Control channels or signalling for resource management - H04W 72/542: using measured or perceived quality - 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 communication control device controls wireless communication in compliance with a time division duplex (TDD) scheme. The communication control device includes a selection unit configured to select a link direction configuration for the wireless communication among a plurality of candidates for the link direction configuration which indicates a link direction in units of sub-frames of a radio frame which includes a plurality of sub-frames, and an application unit configured to apply the selected link direction configuration to the wireless communication. The plurality of candidates include at least one of a link direction configuration dedicated to a downlink and a link direction configuration dedicated to an uplink. ## Claims ### Claim 1 An electronic device comprising: circuitry configured to perform wireless communication via one or more frequency channels in a secondary system, the one or more frequency channels being determined to be utilized in the secondary system by a primary system; and receive one or more link direction configurations for the secondary system among a plurality of candidates, each of the plurality of candidates indicating a link direction in time domain units, wherein the link direction configuration is applied to the wireless communication in the secondary system, each of the one or more link direction configurations being applied to each of the one or more frequency channels, the plurality of candidates includes at least one of a first link direction configuration and a second link direction configuration, the first link direction configuration including more time domain units dedicated to a downlink than time domain units dedicated to an uplink, the second link direction configuration including more time domain units dedicated to an uplink than time domain units dedicated to a downlink, and in a case that the second link direction is applied to each of the one more frequency channels, which are separated in frequency from one or more frequency channels of the primary system, additional resources for the uplink can be secured resulting in increased throughput of the uplink. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein transmission is not performed in a part or all of a first sub-frame indicated by the link direction configuration. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the link direction configuration corresponds to the second link direction configuration and uplink transmission is performed in all sub-frames indicated by the second link direction configuration with the exception of one sub-frame. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the link direction configuration corresponds to the first link direction configuration and downlink reception is performed in all sub-frames indicated by the first link direction configuration with the exception of one sub-frame. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein the time-domain units correspond to sub-frames. ### Claim 6 (depends on 5) The electronic device of claim 5, wherein the wireless communication is performed in accordance with time division duplex (TDD) scheme. ### Claim 7 An electronic device comprising: circuitry configured to perform wireless communication via one or more frequency channels in a secondary system, the one or more frequency channels being determined to be utilized in the secondary system by a primary system; and receive one or more link direction configurations for the secondary system among a plurality of candidates, each of the plurality of candidates indicating an uplink or downlink direction for each sub-frame of a frame, wherein the link direction configuration is applied to the wireless communication in the secondary system, each of the one or more link direction configurations being applied to each of the one or more frequency channels, the plurality of candidates includes at least one of a first link direction configuration and a second link direction configuration, the first link direction configuration including more sub-frames dedicated to the downlink direction than sub-frames dedicated to the uplink direction, the second link direction configuration including more sub-frames dedicated to the uplink direction than sub-frames dedicated to the downlink direction, and in a case that the second link direction is applied to each of the one more frequency channels, which are separated in frequency from one or more frequency channels of the primary system, additional resources for the uplink can be secured resulting in increased throughput of the uplink. ### Claim 8 (depends on 7) The electronic device of claim 7, wherein the link direction configuration corresponds to the first link direction configuration and downlink reception is performed in all sub-frames with the exception of at least one sub-frame in a first half of the frame. ### Claim 9 (depends on 7) The electronic device of claim 7, wherein the link direction configuration corresponds to the second link direction configuration and uplink transmission is performed in all sub-frames with the exception of at least one sub-frame in a first half of the frame. ### Claim 10 (depends on 7) The electronic device of claim 7, wherein transmission is not performed in a part or all of a first sub-frame indicated by the link direction configuration. ### Claim 11 (depends on 7) The electronic device of claim 7, wherein the wireless communication is performed in accordance with time division duplex (TDD) scheme. ### Claim 12 An electronic device comprising: circuitry configured to perform wireless communication via one or more frequency channels in a secondary system, the one or more frequency channels being determined to be utilized in the secondary system from a primary system; receive one or more link direction configurations for the secondary system among a plurality of candidates, each of the plurality of candidates indicating an uplink or downlink direction for each sub-frame of a frame; applying the link direction configuration in the secondary system to each of the one or more frequency channels, wherein the plurality of candidates includes at least one of an uplink direction configuration and a downlink direction configuration, and in a case that the uplink direction configuration is applied to each of the one more frequency channels, which are separated in frequency from one or more frequency channels of the primary system, additional resources for an uplink can be secured resulting in increased throughput of the uplink. ### Claim 13 (depends on 12) The electronic device of claim 12, wherein transmission is not performed in a part or all of a first sub-frame indicated by the link direction configuration. ### Claim 14 (depends on 12) The electronic device of claim 12, wherein the uplink direction configuration indicates that a majority of the sub-frames are dedicated to uplink transmission. ### Claim 15 (depends on 14) The electronic device of claim 14, wherein uplink transmission is performed in all sub-frames with the exception of at least one sub-frame in a first half of the frame. ### Claim 16 (depends on 12) The electronic device of claim 12, wherein the downlink direction configuration indicates that a majority of the sub-frames are dedicated to downlink reception. ### Claim 17 (depends on 16) The electronic device of claim 16, wherein downlink reception is performed in all sub-frames with the exception of at least one sub-frame in a first half of the frame. ### Claim 18 (depends on 12) The electronic device of claim 12, wherein the wireless communication is performed in accordance with time division duplex (TDD) scheme.