# US 2019/0174391 A1 · Wireless base station, first wireless control apparatus, second wireless control apparatus, and wireless apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174391 A1 - Document ID: US20190174391A1 - Status: Published application - Kind: A1 - Application number: 16/233,997 - Filed: 2018-12-27 - Published: 2019-06-06 - Earliest claimed: 2016-08-12 - Assignees: Fujitsu Limited - Applicants: Fujitsu Limited - Inventors: Takayoshi Ode; Yuki Shinada; Yoshiaki Ohta; SHINICHIRO AIKAWA; YOSHIHIRO KAWASAKI - Web page: https://patentgrep.com/patent/US20190174391A1 ## CPC - H04W 40/24: Connectivity information management, e.g. connectivity discovery or connectivity update - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 80/02: Data link layer protocols - H04W 80/08: Upper layer protocols {(network arrangements or communication protocols for networked applications H04L67/00)} - H04W 88/08: Access point devices - H04W 88/12: Access point controller devices - H04W 92/12: between access points and access point controllers - 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 base station for wireless communication includes: a wireless apparatus configured to perform first signal processing that is a part of signal processing in the wireless communication; a first wireless control apparatus configured to perform a user plane (U-plane) processing of the wireless communication; and a second wireless control apparatus configured to perform a control plane (C-plane) processing of the wireless communication. ## Claims ### Claim 1 A wireless base station for wireless communication, the wireless base station comprising: a wireless apparatus configured to perform first signal processing that is a part of signal processing in the wireless communication; a first wireless control apparatus configured to perform a user plane (U-plane) processing of the wireless communication; and a second wireless control apparatus configured to perform a control plane (C-plane) processing of the wireless communication. ### Claim 2 (depends on 1) The wireless base station according to claim 1, wherein the first signal processing performed in the wireless apparatus includes medium access control (MAC) processing of the wireless communication. ### Claim 3 (depends on 1) The wireless base station according to claim 1, further comprising: an interface configured to couple the first wireless control apparatus and the second wireless control apparatus. ### Claim 4 (depends on 1) The wireless base station according to claim 1, wherein the U-plane processing performed in the first wireless control apparatus comprises a U-plane part of packet data convergence protocol (PDCP) processing of the wireless communication, and wherein the C-plane processing performed in the second wireless control apparatus comprises a C-plane part of the PDCP processing of the wireless communication. ### Claim 5 (depends on 1) The wireless base station according to claim 1, wherein the C-plane processing performed in the second wireless control apparatus includes radio resource control (RRC) processing of the wireless communication. ### Claim 6 (depends on 3) The wireless base station according to claim 3, wherein the U-plane processing performed in the first wireless control apparatus is controlled by the second wireless control apparatus through the first interface. ### Claim 7 A first wireless control apparatus for wireless communication, the first wireless control apparatus comprising: a controller configured to perform user plane (U-plane) processing of the wireless communication; an interface configured to receive a signal for controlling the U-plane processing of the wireless communication. ### Claim 8 (depends on 7) The first wireless control apparatus according to claim 7, wherein the interface is further configured to be coupled to a second wireless control apparatus, wherein the second wireless control apparatus is configured to perform control plane (C-plane) processing of the wireless communication. ### Claim 9 (depends on 7) The first wireless control apparatus according to claim 7, further comprising: a second interface configured to be coupled to a wireless apparatus, wherein the wireless apparatus is configured to perform first signal processing that is a part of signal processing in the wireless communication, wherein the first signal processing performed in the wireless apparatus includes medium access control (MAC) processing of the wireless communication. ### Claim 10 (depends on 8) The first wireless control apparatus according to claim 8, wherein the U-plane processing performed in the first wireless control apparatus includes a U-plane part of packet data convergence protocol (PDCP) processing of the wireless communication, and wherein the C-plane processing performed in the second wireless control apparatus includes a C-plane part of the PDCP processing of the wireless communication. ### Claim 11 (depends on 8) The first wireless control apparatus according to claim 8, wherein the C-plane processing performed in the second wireless control apparatus includes radio resource control (RRC) processing of the wireless communication. ### Claim 12 (depends on 7) The first wireless control apparatus according to claim 7, wherein the U-plane processing performed in the first wireless control apparatus is controlled by the signal received via the interface. ### Claim 13 A second wireless control apparatus for wireless communication, the second wireless control apparatus comprising: a controller configured to perform control plane (C-plane) processing of the wireless communication; an interface configured to transmit a signal for controlling user plane (U-plane) processing of the wireless communication. ### Claim 14 (depends on 13) The second wireless control apparatus according claim 13, wherein the interface is further configured to be coupled to a first wireless control apparatus configured to perform the U-plane processing of the wireless communication. ### Claim 15 (depends on 13) The second wireless control apparatus according to claim 13, further comprising: a second interface configured to be coupled to a wireless apparatus configured to perform first signal processing that is a part of signal processing in the wireless communication, wherein the first signal processing performed in the wireless apparatus includes medium access control (MAC) processing of the wireless communication. ### Claim 16 (depends on 14) The second wireless control apparatus according to claim 14, wherein the U-plane processing performed in the first wireless control apparatus includes a U-plane part of packet data convergence protocol (PDCP) processing of the wireless communication, and wherein the C-plane processing performed in the second wireless control apparatus includes a C-plane part of the PDCP processing of the wireless communication. ### Claim 17 (depends on 14) The second wireless control apparatus according to claim 14, wherein the C-plane processing performed in the second wireless control apparatus includes radio resource control (RRC) processing of the wireless communication. ### Claim 18 (depends on 14) The second wireless control apparatus according to claim 14, wherein the U-plane processing performed in the first wireless control apparatus is controlled by the second wireless control apparatus. ### Claim 19 A wireless apparatus for wireless communication, the wireless apparatus comprising: a controller configured to perform first signal processing that is a part of signal processing in the wireless communication; an interface configured to receive a first signal for user plane (U-plane) processing of the wireless communication and a second signal for control plane (C-plane) processing of the wireless communication. ### Claim 20 (depends on 19) The wireless apparatus according to claim 19, wherein the interface is further configured to be coupled to a first wireless control apparatus and a second wireless control apparatus, the first wireless control apparatus being configured to perform the U-plane processing of the wireless communication, the second wireless control apparatus being configured to perform the C-plane processing of the wireless communication. ### Claim 21 (depends on 19) The wireless apparatus according to claim 19, wherein the first signal processing performed in the wireless apparatus includes medium access control (MAC) processing of the wireless communication. ### Claim 22 (depends on 20) The wireless apparatus according to claim 20, wherein the U-plane processing performed in the first wireless control apparatus includes a U-plane part of packet data convergence protocol (PDCP) processing of the wireless communication, and wherein the C-plane processing performed in the second wireless control apparatus includes a C-plane part of the PDCP processing of the wireless communication. ### Claim 23 (depends on 20) The wireless apparatus according to claim 20, wherein the C-plane processing performed in the second wireless control apparatus includes radio resource control (RRC) processing of the wireless communication.