In a 5G or 6G network with high traffic density, wireless users are often forced to delay important transmissions, to avoid interference with other users. For enhanced efficiency and reduced overall latency, a base station can provide an uplink grant to the waiting user before the mandated delay has expired, thereby avoiding wasted time and wasted resources. The base station can determine which user has waited the longest time, and can provide the grant to that longest-delayed user. Message priority and length, and other factors, can also be considered in selecting which user to accelerate, depending on network rules. By allowing a delayed user to immediately transmit when conditions allow, the base station can reduce the average delay per message transmission, assist users in uploading their messages, and enhance network efficiency generally.