# US 2014/0192766 A1 · Wireless communication apparatus and wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192766 A1 - Document ID: US20140192766A1 - Status: Published application - Kind: A1 - Application number: 14/241,516 - Filed: 2012-08-30 - Published: 2014-07-10 - Earliest claimed: 2011-09-14 - Assignees: Yokogawa Electric Corporation - Inventors: Yukiyo Akisada; Kazunori Miyazawa; Yasuki Sakurai - Web page: https://patentgrep.com/patent/US20140192766A1 ## CPC - H04W 76/11: Allocation or use of connection identifiers - H04L 63/06: {for supporting key management in a packet data network (cryptographic mechanisms or cryptographic arrangements for key management H04L9/08)} - H04W 12/02: Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII] - H04W 12/04: Key management, e.g. using generic bootstrapping architecture [GBA] - H04W 12/35: {Protecting application or service provisioning, e.g. securing SIM application provisioning} - H04W 24/02: Arrangements for optimising operational condition - H04W 12/10: Integrity - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A wireless communication apparatus for performing wireless communication between wireless devices via a wireless communication network, wherein the wireless communication apparatus comprises: a packet processor for generating a first packet including first control information and discrimination information for discriminating between the first control information for connecting to the wireless communication network a set wireless device, which is a wireless device for which the setting of instrument information required for accessing the wireless communication network has been performed, and second control information for connecting to the wireless communication network a setting-required wireless device, which is a wireless device for which there is a need to set instrument information, and a second packet including the discrimination information and the second control information; and a wireless communication unit for transmitting the first packet and the second packet generated by the packet processor to the wireless communication network. ## Claims ### Claim 1 A wireless communication apparatus that wirelessly communicates with a wireless device via a wireless communication network, the wireless communication apparatus comprising: a packet processor that generates a first packet including first control information and discrimination information for discriminating between the first control information for connecting an already-set wireless device in which necessary device information for joining to the wireless communication network has been set and a second control information for connecting a setting-required wireless device requiring setting of the device information, and a second packet including the discrimination information and the second control information; and a wireless communication unit that transmits the first packet and the second packet generated by the packet processor to the wireless communication network. ### Claim 2 (depends on 1) The wireless communication apparatus according to claim 1, wherein the wireless communication unit transmits the first packet and the second packet to the wireless communication network as a router advertisement. ### Claim 3 (depends on 1) The wireless communication apparatus according to claim 1, further comprising: a storage unit that stores a first encryption key for encrypting the content communicated with the already-set wireless device connected to the wireless communication network and a second encryption key for encrypting the content communicated with the setting-required wireless device connected to the wireless communication network; and an encryption processor that encrypts the content communicated with the already-set wireless device connected to the wireless communication network using the first encryption key stored in the storage unit and that encrypts the content communicated with the setting-required wireless device connected to the wireless communication network using the second encryption key stored in the storage unit. ### Claim 4 (depends on 3) The wireless communication apparatus according to claim 3, further comprising: an encryption key selection unit that selects an encryption key for use in encryption processing by the encryption processor from among the first and second encryption keys stored in the storage unit based on a management table establishing a method of using the first and second encryption keys. ### Claim 5 (depends on 4) The wireless communication apparatus according to claim 4, wherein in the management table, the wireless communication resources allocated based on the first and second control information is associated with information indicating an encryption key used for encrypting content communicated wirelessly with a wireless device using the wireless communication resources. ### Claim 6 (depends on 4) The wireless communication apparatus according to claim 4, wherein in the management table, discrimination information allocated uniquely to each wireless device is associated with information indicating the encryption keys used for encrypting content communicated with the wireless devices. ### Claim 7 (depends on 4) The wireless communication apparatus according to claim 4, wherein in the management table, block information indicating the block of discrimination information allocable to a wireless device is associated with information indicating an encryption key used for encrypting content communicated with a wireless device to which is allocated discrimination information included in the block indicated by the block information. ### Claim 8 (depends on 4) The wireless communication apparatus according to claim 4, wherein the packet processor updates the contents of the management table in accordance with the contents of a received packet. ### Claim 9 (depends on 4) The wireless communication apparatus according to claim 4, wherein the packet processor adds to the management table discrimination information of the already-set wireless device included in the packet and information indicating the first encryption key, in association with one another if the transmitting source of a received packet is the already-set wireless device, and adds to the management table discrimination information of the setting-required wireless device included in the packet and information indicating the second encryption key, in association with one another, if the transmitting source of a received packet is the setting-required wireless device. ### Claim 10 (depends on 1) The wireless communication apparatus according to claim 1, wherein the first and second control information identify a time slot and a communication channel of wireless communication by time division multiple access via the wireless communication network. ### Claim 11 (depends on 1) The wireless communication apparatus according to claim 1, wherein the discrimination information stored in a packet including the first information indicates a message integrity symbol that assures integrity of the contents of the packet, and the discrimination information stored in a packet including the second information indicates a special value that cannot be taken by the message integrity symbol. ### Claim 12 A wireless communication system in which wireless communication is performed via a wireless communication network, the wireless communication system comprising: a wireless communication apparatus that has a packet processor that generates a first packet including first control information and discrimination information for discriminating between the first control information for connecting an already-set wireless device in which necessary device information for joining to the wireless communication network has been set and a second control information for connecting a setting-required wireless device requiring setting of the device information, and a second packet including the discrimination information and the second control information; and a wireless communication unit that includes a router transmitting the first packet and the second packet generated by the packet processor to the wireless communication network as a router advertisement; and a wireless device that discriminates between the first and second control information based on the discrimination information included in the router advertisement transmitted from the wireless communication apparatus and, when the second control information is the discrimination result and the device information is not set, connects to the wireless communication network based on the second control information included in the router advertisement. ### Claim 13 (depends on 12) The wireless communication system according to claim 12, further comprising: a management apparatus that establishes the first and second control information to manage wireless communication via the wireless communication network, and sets the device information with respect to a wireless device connected to the wireless communication network based on the second control information. ### Claim 14 A wireless communication method of wirelessly communicating with a wireless device via a wireless communication network, the method comprising: generating a first packet including a first control information and discrimination information for discriminating between the first control information for connecting an already-set wireless device in which necessary device information for joining to the wireless communication network has been set and a second control information for connecting a setting-required wireless device requiring setting of the device information, and a second packet including the discrimination information and the second control information; and transmitting the generated first packet and second packet to the wireless communication network. ### Claim 15 (depends on 14) The wireless communication method according to claim 14, further comprising: storing a first encryption key for encrypting the content communicated with the already-set wireless device connected to the wireless communication network and a second encryption key for encrypting the content communicated with the setting-required wireless device connected to the wireless communication network; encrypting the content communicated with the already-set wireless device connected to the wireless communication network using the stored first encryption key; and encrypting the content communicated with the setting-required wireless device connected to the wireless communication network using the stored second encryption key.