# US 2016/0262102 A1 · Wireless communication device and system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0262102 A1 - Document ID: US20160262102A1 - Status: Published application - Kind: A1 - Application number: 14/879,271 - Filed: 2015-10-09 - Published: 2016-09-08 - Earliest claimed: 2015-03-05 - Assignees: Kabushiki Kaisha Toshiba - Applicants: Kabushiki Kaisha Toshiba - Inventors: Ren SAKATA; Hiroki KUDO - Web page: https://patentgrep.com/patent/US20160262102A1 ## CPC - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04B 7/15542: {Selecting at relay station its transmit and receive resources (selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003)} - H04L 5/0078: {Timing of allocation} - H04L 5/16: Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/563: of the wireless resources - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract A wireless communication device according to an embodiment includes a transceiver and a timer. The transceiver transmits and receives data and transmits the data in a first direction and a second direction. The timer determines a timing for the transceiver to transmit data such that a transmission interval in the first direction is longer than a transmission interval in the second direction. ## Claims ### Claim 1 A wireless communication device comprising: a transceiver configured to transmit and receive data and transmit the data in a first direction and a second direction; and a timer configured to determine a timing for the transceiver to transmit the data such that a transmission interval in the first direction is longer than a transmission interval in the second direction. ### Claim 2 (depends on 1) The device according to claim 1, wherein data volume transmitted in the first direction is larger than data volume transmitted in the second direction. ### Claim 3 (depends on 1) The device according to claim 1, wherein the transmission intervals in the first direction and the second direction are set according to data volume transmitted in the first direction and the second direction. ### Claim 4 (depends on 1) The device according to claim 1, wherein transmission in the first direction is uplink transmission, and transmission in the second direction is downlink transmission. ### Claim 5 (depends on 1) The device according to claim 1, wherein the timer comprises: a frame determiner configured to determine whether a current frame is a duplex communication frame where transmission in the first direction and the second direction is performed, or a simplex communication frame where transmission in the second direction is performed; and a transmission slot determiner configured to determine a transmission slot, where the transceiver transmits the data, from the frame time-divided into a plurality of slots, based on a rank value of the present node corresponding to the number of hops to a root node. ### Claim 6 (depends on 1) The device according to claim 1, wherein the transceiver is configured to transmit the data in the first direction for every M frames (where M is an integer of 2 or more) and in the second direction for every frame. ### Claim 7 (depends on 5) The device according to claim 5, wherein a plurality of slot groups including the plurality of consecutive slots is set to the frame, the rank values different from each other are set to the respective slot groups, and the transmission slot determiner determines the transmission slot from among the slots included in the slot group to which the rank value of the present node is set. ### Claim 8 (depends on 7) The device according to claim 7, wherein the rank values for transmission in the first direction and the rank values for transmission in the second direction are set to the frame. ### Claim 9 (depends on 8) The device according to claim 8, wherein the larger rank value for transmission in the first direction is set to the earlier slot group. ### Claim 10 (depends on 8) The device according to claim 8, wherein the smaller rank value for transmission in the second direction is set to the earlier slot group. ### Claim 11 (depends on 8) The device according to claim 8, wherein, in the duplex communication frame, the rank value R+1 for the first direction and the rank value R−1 for the second direction are set to the different slot groups. ### Claim 12 (depends on 7) The device according to claim 7, wherein, in the simplex communication frame, the transceiver receives the data during the slot group to which the rank value smaller by 1 than the rank value of the present node is set. ### Claim 13 (depends on 7) The device according to claim 7, wherein, in the simplex communication frame, the transceiver receives the data during the transmission slot of a parent node. ### Claim 14 (depends on 13) The device according to claim 13, wherein, when the transceiver has failed in reception of the data in the transmission slot of the parent node, the transceiver continues reception of the data until the transmission slot of the present node starts. ### Claim 15 (depends on 14) The device according to claim 14, wherein, when the transceiver has failed in reception of the data before the transmission slot of the present node starts, in a next simplex communication frame, the transceiver receives the data during the slot group including the transmission slot of the parent node. ### Claim 16 (depends on 1) The device according to claim 1, further comprising a sleep controller configured to halt transmission and reception of the data by the transceiver. ### Claim 17 (depends on 1) A wireless communication system comprising: the device according to claim 1; and a concentrator configured to concentrate the data from the device.