Millimeter-wave relay device with bounded delay and method for retransmission of symbols

A method for per-symbol relay operations comprising:

• receiving one or more of independent symbol streams from a master device, each independent symbol stream comprising packets that include groups of one or more symbols, each group within a packet being destined for a different one of the client devices;
• and
• receiving symbols or groups of symbols within the packet from the master device that are encoded with different modulation and coding schemes (MCSs);
• separately decoding each symbol or group of symbols for recoding retransmitting to each client device using beamforming;
• retransmitting groups of symbols of symbols to the client devices using the different MCSs;
• performing, link adaptation with the master device and with the associated client devices for determination of the MCSs, wherein the MCSs are based on link characteristics between the relay device and the master device and link characteristics between the relay device and the client device,
• wherein each symbol or group of symbols is to be received, decoded, recoded and retransmitted within a delay that is bounded by the number of symbols in the group.

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors to perform operations comprising:

• receiving one or more of independent symbol streams from a master device, each independent symbol stream comprising packets that include groups of one or more symbols, each group within a packet being destined for a different one of the client devices;
• and
• receiving symbols or groups of symbols within the packet from the master device that are separately decoding each symbol or group of symbols for recoding retransmitting to each client device using beamforming;
• retransmitting groups of symbols or symbols to the client devices using the different MCSs:
• performing link adaptation with the master device and with the associated client devices for determination of the MCSs, wherein the MCSs are based on link characteristics between the relay device and the master device and link characteristics between the relax device and the client device,
• wherein each symbol or group of symbols is to be received, decoded, recoded and retransmitted within a delay that is bounded by the number of symbols in the group.

A wireless communication system to operate as a per-symbol relay device for retransmission of symbols between client devices and a master device using millimeter-wave links, the wireless communication system comprising:

• one or more antennas to receive one or more of independent symbol streams from the master device, each independent symbol stream comprising packets that include groups of one or more symbols, each group within a packet being destined for a different one of the client devices;
• and
• processing circuitry to separately decode each symbol or group of symbols for recoding and retransmission to the client devices using beamforming,
• wherein the processing circuitry is arranged to receive symbols or groups of symbols within the packet from the master device that are encoded with different modulation and coding schemes (MCSs),
• wherein the processing circuitry is arranged to retransmit groups of symbols or symbols to the client devices using the different MCSs,
• wherein the processing circuitry is arranged to perform link adaptation with the master device and with the associated client devices for determination of the MCSs,
• wherein the MCS for symbols or groups of symbols destined for a same client device is selected based on link characteristics between the relay device and the master device and link characteristics between the relay device and the client device, and
• wherein the processing circuitry is arranged to receive, decode, recode and retransmit each received symbol or group of symbols within a delay that is bounded by a number of symbols in the group.