US Patent No. 10,798,721

WIRELESS BASE STATION DEVICE, SERVER, AND WIRELESS COMMUNICATION METHOD FOR COMMUNICATING PRIORITY DATA AND NON-PRIORITY DATA


Patent No. 10,798,721
Issue Date October 06, 2020
Title Wireless Base Station Device, Server, And Wireless Communication Method For Communicating Priority Data And Non-priority Data
Inventorship Sojiro Norita, Kanagawa (JP)
Osamu Kato, Fukuoka (JP)
Hiroaki Asano, Kanagawa (JP)
Yasufumi Ichikawa, Kanagawa (JP)
Noriyuki Shimizu, Kanagawa (JP)
Assignee Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)

Claim of US Patent No. 10,798,721

1. A wireless base station device comprising:a processor; and
a memory coupled to the processor;
wherein the processor, in operation,
controls transmission, to a wireless communication terminal, of information regarding vacant wireless resources among wireless resources reserved for priority calls via which priority data requiring a low delay transmission are transmitted,
counts a number of one or more priority calls that are generated,
responsive to determining that the wireless resources reserved for priority calls can be allocated to the one or more priority calls that are generated, allocates the wireless resources reserved for priority calls to the one or more priority calls that are generated,
controls transmission of priority data via the one or more priority calls that are generated using the allocated wireless resources,
responsive to determining that the wireless resources reserved for priority calls cannot be allocated to the one or more priority calls that are generated, counts a number of insufficient wireless resources which indicates a shortage of the wireless resources required for the one or more priority calls that are generated, and determines whether disconnectable call(s) exist, wherein the disconnectable call(s) are non-priority call(s) that are currently connected,
responsive to determining that the disconnectable call(s) exist, disconnects the disconnectable call(s) and allocates wireless resources previously allocated to the disconnectable call(s) to the one or more priority calls that are generated,
responsive to determining that the disconnectable call(s) do not exist, loses the one or more priority calls that are generated, and
adjusts a reserve amount of the wireless resources reserved for the priority calls based on the counted number of insufficient wireless resources, by increasing the reserve amount in response to a parameter, which corresponds to the counted number of insufficient wireless resources, exceeding a threshold value, and decreasing the reserve amount in response to the parameter not exceeding the threshold value.