Metal plating compositions
A method of providing spatial diversity for critical data delivery in a beamformed mmWave small cell is proposed. The proposed spatial diversity scheme offers duplicate or incremental data/signal transmission and reception by using multiple different beams for the same source and destination. The proposed spatial diversity scheme can be combined with other diversity schemes in time, frequency, and code, etc. for the same purpose. In addition, the proposed spatial diversity scheme combines the physical-layer resources associated with the beams with other resources of the same or different protocol layers. By spatial signaling repetition to avoid Radio Link Failure (RLF) and Handover Failure (HOF), mobility robustness can be enhanced. Mission-critical and/or time-critical data delivery can also be achieved without relying on retransmission.
1. A reaction product comprising one or more diamines comprising primary or secondary amine moieties with a reaction product comprising one or more monoamines comprising primary or secondary amine moieties and one or more compounds having formula:
where R is a linking group having formula:
where R 1 , R 2 may be the same or different and comprise hydrogen, linear or branched (C 1 -C 4 )alkyl, hydroxyl, hydroxy(C 1 -C 3 )alkyl, carboxyl, carboxy(C 1 -C 3 )alkyl or (C 1 -C 3 )alkoxy; and m is an integer of 1 to 15, wherein the one or more diamines comprises a formula:
where R″ is a linking group and R 42 and R 43 may be the same or different and comprise hydrogen, linear or branched (C 1 -C 12 )alkyl, alkyleneoxy or substituted or unsubstituted (C 6 -C 18 )aryl, wherein R″ comprises:
or
a substituted or unsubstituted (C 6 -C 18 )aryl; where R 44 -R 51 may be the same or different and comprise hydrogen, linear or branched (C 1 -C 5 )alkyl, linear or branched hydroxy(C 1 - C 5 )alkyl or linear or branched (C 1 -C 5 )alkoxy; and Z is a carbon atom or nitrogen atom; and p and t may be the same or different and are independently integers of one or greater, e is an integer of 0 to 3, and a, b, c and d may be the same or different and are numbers from 1 or greater.