Abstract: A method for controlling unwelcome communication among a network of users (a) maintains for each user an account to which communication units are credited by the network according to a schedule; and (b) for each user that initiates communication with a respondent user, the network (i) determines whether or not the account of the initiator user holds greater than a predetermined number of communication units; and (ii) when the account is determined to hold greater than the predetermined number of communicating units, deducts from the account of the initiator user the predetermined number of communication units, and allows the initiated communication to proceed.

Abstract: To transmit data packets between a transmitter and a receiver, the data packets are transmitted in coded from as coding units. The received data packets are stored in coded or uncoded form in the receiver inside a memory. The receiver notifies the transmitter of the capacity utilization of the memory.

Abstract: According to the invention, a message belonging to a protocol is signalled by a base station subsystem (BSS) in a radio communications system to user equipment (UE), said message consisting of at least one message element. The changes to the message elements in comparison to an older version of the message are signalled at the beginning of the message.

Abstract: According to the invention, a message belonging to a protocol is signalled by a base station subsystem (BSS) in a radio communications system to user equipment (UE), said message consisting of at least one message element. The changes to the message elements in comparison to an older version of the message are signalled at the beginning of the message.

Abstract: Several subscriber stations transmit a respective access sequence to a base station of a radio communications systems on a channel for random access. Afterwards, the radio communications system confirms reception of the access sequences on another channel by a message which selects a subscriber station that can subsequently transmit additional sequences to the base station on a physical access channel.

Abstract: To transmit data packets between a transmitter and a receiver, the data packets are transmitted in coded from as coding units. The received data packets are stored in coded or uncoded form in the receiver inside a memory. The receiver notifies the transmitter of the capacity utilization of the memory.

Abstract: A method of operating a high speed, error-free data transmission system in a noisy medium includes compressing data determined to be compressible, forward error correcting the data and interleaving the data in a bit matrix memory to enhance the forward error correction. Digital information packets are formulated including a header bearing a packet number, the total packet byte count, any packet number resend request, the data byte count of the actual data and a CRC. The digital information packet is loaded onto a transmitter carousel having a fixed number of sectors. The receiver receives the data, requests resend of any packet (by number) that is defective, error corrects if necessary and sequentially loads the packet onto a receiver carousel. Packets or sequential packet groups are removed from the carousel, selectively decompressed and the data words extracted and sent to the output.