Abstract: A method and corresponding apparatus and system of controlling access to communication services by a roaming wireless device are described. The method includes receiving a request for roaming wireless device service information related to a roaming user and determining which services the user has access to for the requesting system, if the user is determined to have access to the requesting system. The method also includes transmitting user service information concerning the services to which the user has access. The apparatus includes a memory, a communication system, and a processor. The memory stores: (1) user information including a class of service (COS) identifier and (2) COS restriction information. The processing system, coupled with the communication system and the memory, generates a reply message based on comparing information in a service request message received by the communication system with the stored information in the memory.

Abstract: A method and corresponding apparatus and system of controlling access to communication services by a roaming wireless device are described. The method includes receiving a request for roaming wireless device service information related to a roaming user and determining which services the user has access to for the requesting system, if the user is determined to have access to the requesting system. The method also includes transmitting user service information concerning the services to which the user has access. The apparatus includes a memory, a communication system, and a processor. The memory stores: (1) user information including a class of service (COS) identifier and (2) COS restriction information. The processing system, coupled with the communication system and the memory, generates a reply message based on comparing information in a service request message received by the communication system with the stored information in the memory.

Abstract: A method and corresponding apparatus and system of controlling access to communication services by a roaming wireless device are described. The method includes receiving a request for roaming wireless device service information related to a roaming user and determining which services the user has access to for the requesting system, if the user is determined to have access to the requesting system. The method also includes transmitting user service information concerning the services to which the user has access. The apparatus includes a memory, a communication system, and a processor. The memory stores: (1) user information including a class of service (COS) identifier and (2) COS restriction information. The processing system, coupled with the communication system and the memory, generates a reply message based on comparing information in a service request message received by the communication system with the stored information in the memory.

Abstract: Systems, methods, and devices for a database are provided. One database embodiment includes a set of executable instructions operable on the database. One or more database partitions are provided, each having a defined key range. The set of executable instructions is operable to reverse octets in variable length keys. A last digit in an odd-length key value, plus a pad, is placed in a dedicated octet to partition the variable length keys in the one or more database partitions.

Abstract: Systems, methods, and devices for a database are provided. One database embodiment includes a set of executable instructions operable on the database. One or more database partitions are provided, each having a defined key range. The set of executable instructions is operable to reverse octets in variable length keys. A last digit in an odd-length key value, plus a pad, is placed in a dedicated octet to partition the variable length keys in the one or more database partitions.

Abstract: Methods, devices, architectures and data structures are provided for sorting variable length keys in a database. An embodiment includes a variable length key having a series of octets. Each octet includes a pair of hexadecimal values, e.g. representing digits. At least one octet includes a sort key having a value representing a digit length for a received variable length key minus a minimum digit length of an object key.

Abstract: In a communication system network, a communication unit may maintain allocation of a telephone resource when it roams into another communication system. Having established a communication in a first communication system, the communication unit is allocated a communication resource in the first communication system and is also allocated a telephone resource. While the communication unit is allocated the communication resource and the telephone resource, it determines whether the transceiving quality of the allocated communication resource has degraded below a predetermined level. When the transceiving quality has degraded below a predetermined level, the communication unit transmits a registration packet to second communication system via the central controller. Upon receiving the registration packet, the central controller reclaims the allocated communication resource in the first communication unit and attempts to allocate a communication resource in the second communication system.