# US 5,706,330 A · Method and apparatus for tracking and transmitting communication information for wireless communication systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,706,330 A - Document ID: US5706330A - Status: Granted - Kind: A - Application number: 08/390,921 - Filed: 1995-02-14 - Granted: 1998-01-06 - Earliest claimed: 1995-02-14 - Inventors: Cary Bufferd; Rick Harris - Web page: https://patentgrep.com/patent/US5706330A ## CPC - H04W 4/24: Accounting or billing - H04M 17/02: Coin-freed or check-freed systems {, e.g. mobile- or card-operated phones, public telephones or booths} - H04M 2215/2026: Wireless network, e.g. GSM, PCS, TACS - H04M 2215/32: Involving wireless systems - H04W 8/14: between corresponding nodes - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract A communications accounting system is provided wherein the transfer of call detail record information from a remotely located phone may be accomplished in an efficient manner. During non-billable processes or during airtime billed at a reduced rate, the call detail record (CDR) information from the previous registration is simultaneously sent to the collector system for processing to the billing system. More specifically, encrypted and compressed authorization information and call details records (CDRs) from the previous use of the phone are simultaneously communicated from the Cellular Call Computer--Programmable Off-line (C3PO) to the host computer system by modem or other suitable manner. At the validation server, the authorization information is decrypted and uncompressed and stripped away from the CDRs, while the call is live, and sent to an authorization service. While the validation system is working on completing the authorization, the system is uploading the CDRs from calls made since the last authorization attempt. These CDRs are stored for later processing. The invention also provides a roaming management system integrated with the accounting system. By the method of the instant invention, equipment is efficiently utilized, internal airtime charges are minimized, and customers are billed in a timely manner. ## Claims ### Claim 1 A usage monitoring system for monitoring, storing and analyzing the usage of a wireless communications system by at least one customer, comprising: at least one remote unit including a real time clock generating clock signals, a memory for storing usage data, said usage data being indicative of usage of said communication system, and a microprocessor coupled to said clock and said memory and having a program for processing and storing said usage data; a collector means for receiving and storing said usage data from said at least one remote unit, said collector means including a computer with memory and an evaluation program, said evaluation program being operative to evaluate said usage data indicative of usage of said communications system; and a communications interface means for communicating transmission information between said at least one remote unit and said collector means, and for transferring said usage information from said memory in said at least one remote unit to said collector means for evaluation by said evaluation program, wherein said communications interface means transfers said usage data simultaneously with said transmission information, and wherein said transmission information comprises authorization data enabling said at least one customer to gain access to said communication system, said authorization data being analyzed in order to meet predetermined authorization criteria established by said communication system, and wherein said usage data is generated by a first customer and said transmission information is generated by a second customer, said first customer and said second customer defining sequential users of said communication system. ### Claim 2 (depends on 1) The system recited in claim 1, wherein transmission information comprises diagnostic data indicating an operating condition of said at least one remote unit. ### Claim 3 (depends on 1) The system recited in claim 1, wherein transmission information comprises maintenance data evaluating an operating condition of said at least one remote unit. ### Claim 4 (depends on 1) The system recited in claim 1, wherein said usage data and said transmission information are encrypted and compressed by said at least one remote unit. ### Claim 5 (depends on 4) The system recited in claim 4, wherein said usage data and said transmission information are decrypted and uncompressed by said collector means. ### Claim 6 (depends on 1) The system recited in claim 1, wherein said at least one remote unit comprises an automatic communication means for automatically communicating with said collector means when said at least one remote unit detects a predetermined condition. ### Claim 7 (depends on 6) The system recited in claim 6, wherein said predetermined condition is a predetermined period of time in which the at least one remote unit is unused. ### Claim 8 (depends on 6) The system recited in claim 6, wherein said predetermined condition is a roaming state, said roaming state occurring when said at least one remote unit is relocated outside a predetermined region. ### Claim 9 (depends on 6) The system recited in claim 6, wherein said at least one remote unit is adapted to perform a self-diagnostic analysis, and said predetermined condition is a diagnostic problem discovered during said self-diagnostic analysis. ### Claim 10 A usage monitoring system for monitoring, storing and analyzing the usage of a wireless communications system by at least one customer, comprising: at least one remote unit including a real time clock generating clock signals, a memory for storing usage data and identification data, and a microprocessor coupled to said clock and said memory and having a program for processing and storing said usage data, said usage data being indicative of usage of said communication system and said identification data adapted to uniquely identify said at least one remote unit; a collector means for receiving and storing said usage data from said at least one remote unit, said collector means including a computer with memory and an evaluation program, said evaluation program being operative to evaluate said usage data indicative of usage of said communications system; and a communications interface means for communicating transmission information between said at least one remote unit and said collector means, and for transferring said usage information from said memory in said at least one remote unit to said collector means for evaluation by said evaluation program, wherein said at least one remote unit further comprises a roaming status means for detecting a roaming status defined by a relocation of said at least one remote unit outside a predetermined communication region; and wherein said communications interface means is transfers said usage data to said collector means simultaneously with said roaming status. ### Claim 11 (depends on 10) The system recited in claim 10, wherein said roaming status is further defined by said relocation continuing for more than a predetermined period of time. ### Claim 12 (depends on 10) The system recited in claim 10, wherein when said roaming status is detected said at least one remote unit communicates said roaming status to said collector means. ### Claim 13 (depends on 12) The system recited in claim 12, wherein said collector means changes said identification data of said at least one remote unit to updated identification data. ### Claim 14 (depends on 13) The system recited in claim 13, wherein said updated identification data is determined by said relocation. ### Claim 15 (depends on 13) The system recited in claim 13, wherein said updated identification data is defined by a site identification number related to a region to which said at least one remote unit has relocated.