Adaptive digital wireless communications network apparatus and process

In a single channel, star configuration, wireless digital communication network of cellular topology wherein a central unit is radio frequency linked to a plurality of remote units and multiple access is synchronously controlled by the central unit through a time division multiplexed cycle,

• wherein the improvement comprises:
• the cycle having a total cycle time of variable duration divided into two phases, one phase being an up-link phase and the other phase being a down-link phase which follows the up-link phase, each phase having a plurality of time slots in which information is transferred from the central units to the remote units and from the remote units to the central units,
• in the up-link phase, a variable number of fixed size time slots, each pre-assigned on request of a remote unit in a prior up-link phase for use by the requesting remote unit in uploading information to the central unit in the next up-link phase,
• in the down-link phase, a variable number of variable size time slots for downloading information from the central unit to selected ones of the remote units
• the central unit and its associated plurality of remote units forming a major cell,
• a repeater unit having a local remote unit-local central unit pair coupled back to back to operate as a mini-cell within the major cell, and
• frames from the major cell central unit received by the local remote unit of the back to back pair being passed through a UART channel of the local remote unit to a UART channel of the local central unit which in turn acts as a central unit to other remote units in the minicell and vice versa whereby the local remote unit acts as a regular remote unit in the major cell.

In a single channel, star configuration, wireless digital communication network of cellular topology wherein a central unit is radio frequency linked to a plurality of remote units and multiple access is synchronously controlled by the central unit through a time division multiplexed cycle,

• wherein the improvement comprises:
• the cycle having a total cycle time of variable duration divided into two phases, one phase being an up-link phase and the other phase being a down-link phase which follows the up-link phase, each phase having a plurality of time slots in which information is transferred from the central unit to the remote units and from the remote units to the central unit,
• in the up-link phase, a variable number of fixed size data transfer time slots for use in uploading data information to the central unit, and, in the down-link phase, a variable number of variable size time slots for use in downloading data information to the remote units, and
• the up-link variable being adaptively allocated by the central unit on demand by remote units with non-requesting units being temporarily suspended from the entire up-link phase of the cycle of the network until a predetermined condition is satisfied.

In a process of a central unit, radio frequency linked in a star configuration to a plurality of remote units, synchronously controlling multiple access of the remote units to a single channel, wireless, digital, communication network of cellular topology through a cyclic time division multiplexed process,

• wherein the improvement comprises the steps of:
• providing a total cycle time of variable duration,
• dividing the cycle into two phases, one phase being an up-link phase and the other phase being a down-link phase which follows the up-link phase, each phase having a plurality of time slots in which information is transferred from the central unit to the remote units and from the remote units to the central unit,
• pre-assigning each of a variable number of fixed size up-link phase data transfer time slots on reservation by a remote unit in an up-link phase of an immediately preceding cycle for use by the reserving remote unit in uploading data to the central unit in the up-link phase of the next succeeding cycle, and
• providing a variable number of variable size down-link phase data transfer time slots for downloading data from the central unit to selected ones of the remote units.

In a process of a central unit, radio frequency linked in a star configuration to a plurality of remote units, synchronously controlling multiple access of the remote units to a single channel, wireless, digital, communication network of cellular topology through a cyclic time division multiplexed process,

• wherein the improvement comprises the steps of:
• providing a total cycle time of variable duration,
• dividing the cycle into two phases, one phase being an up-link phase and the other phase being a down-link phase which follows the up-link phase, each phase having a plurality of time slots in which information is transferred from the central unit to the remote units and from the remote units to the central unit,
• pre-assigning each of a variable number of fixed size up-link phase time slots on reservation by a remote unit in a prior up-link phase for use by the requesting remote unit in uploading information to the central unit in the next up-link phase,
• providing a variable number of variable size down-link phase time slots for downloading data from the central unit to selected ones of the remote units
• configuring the central unit and its associated plurality of remote units as a major cell,
• providing a repeater unit having a local remote unit-local central unit pair coupled back to back to operate as a mini-cell within the major cell, and
• passing frames from the major cell central unit received by the local remote unit of the back to back pair through a UART channel of the local remote unit to a UART channel of the local central unit which in turn operates as a central unit to other remote units in the minicell and vice versa whereby the local remote unit operates as a regular remote unit in the major cell.

In a single channel, star configuration, wireless digital communication network of cellular topology wherein a central unit is radio frequency linked to a plurality of remote units and multiple access is synchronously controlled by the central unit through a time division multiplexed cycle,

• wherein the improvement comprises:
• the cycle having a total cycle time of variable duration divided into two phases, one phase being an up-link phase and the other phase being a down-link phase which follows the up-link phase, each phase having a plurality of time slots in which information is transferred from the central unit to the remote units and from the remote units to the central unit,
• in the up-link phase, a variable number of fixed size data transfer time slots, each pre-assigned on request of a remote unit in one up-link phase of a cycle for use by the requesting remote in uploading data to the central unit in another up-link phase of a cycle, and
• in the down-link phase, a variable number of variable size data transfer time slots for downloading data from the central unit to selected ones of the remote units.

In a single channel, star configuration, wireless digital communication network of cellular topology wherein a central unit is radio frequency linked to a plurality of remote units and multiple access is synchronously controlled by the central unit through a time division multiplexed cycle,

• wherein the improvement comprises:
• the cycle having a total cycle time of variable duration divided into two phases, one phase being an up-link phase and the other phase being a down-link phase which follows the up-link phase, each phase having a plurality of time slots in which information is transferred from the central unit to the remote units and from the remote units to the central unit,
• in the up-link phase, a variable number of data transfer time slots, each pre-assigned on request of a remote unit in an up-link phase of an immediately preceding cycle for use by the requesting remote in uploading data to the central unit in the up-link phase of the next succeeding cycle, and
• in the down-link phase, a variable number of variable size data transfer time slots for downloading data from the central unit to selected ones of the remote units.