Bandwidth allocation in a wireless personal area network

A network, comprising:

• a plurality of peripheral devices;
• and
• a hub device, communicably connected to the peripheral devices via a plurality of communication streams, comprising:
• a send token register containing tokens for allocation of output data bandwidth;
• a receive token register containing tokens for allocation of input data bandwidth;
• and
• a communication protocol engine that alternates between the send and receive token registers to ensure a split of the output and input data bandwidth on the network.

A network having a hub device connected to a plurality of peripheral devices, the hub device comprising:

• a send token FIFO containing tokens for allocation of output data bandwidth;
• a receive token FIFO containing tokens for allocation of input data bandwidth;
• a status request token ring containing tokens for allocation of status response messages;
• and
• digital control logic configured to
• alternate between the send and receive token FIFOs to ensure a division of send and receive data bandwidth when both the send and receive token FIFOs are non-empty,
• write tokens into the status request token ring to schedule transmission of the status response messages,
• add tokens to the send token FIFO to schedule data transmissions,
• add tokens to the send token FIFO when no acknowledgments are received from the peripheral devices after data transmissions from the hub device,
• receive, from the peripheral devices, data messages and status response messages indicating that data messages are available for transmission,
• add tokens to the receive token FIFO in response to the received status response messages,
• perform integrity checks on the received data messages,
• add tokens to the receive token FIFO in response to failed ones of the integrity checks,
• analyze the received data messages to determine whether a bit is set indicating that the peripheral devices have additional data messages to transmit, and
• add tokens to the receive token FIFO in response to set bits in the received data messages.

In a network having a hub device connected to a plurality of peripheral devices, the hub device including a send token FIFO containing tokens for allocation of output data bandwidth, a receive token FIFO containing tokens for allocation of input data bandwidth, a status request token ring containing tokens for allocation of status response messages, a memory having program instructions, and digital control logic configured to use the program instructions, a method, executed by the digital control logic, for managing transmissions on the network, comprising the steps of:

• alternating between the send and receive token FIFOs to ensure a division of send and receive data bandwidth when both the send and receive token FIFOs are non-empty;
• writing tokens into the status request token ring to schedule transmission of the status response messages;
• adding tokens to the send token FIFO to schedule data transmissions;
• adding tokens to the send token FIFO when no acknowledgments are received from the peripheral devices after data transmissions from the hub device;
• receiving, from the peripheral devices, data messages and status response messages indicating that data messages are available for transmission;
• adding tokens to the receive token FIFO in response to the received status response messages;
• performing integrity checks on the received data messages;
• adding tokens to the receive token FIFO in response to failed ones of the integrity checks;
• analyzing the received data messages to determine whether a bit is set indicating that the peripheral devices have additional data messages to transmit;
• and
• adding tokens to the receive token FIFO in response to set bits in the received data messages.