US 12,335,864 B2
Transmission system control
Pål Frenger, Linköping (SE); Richard Tano, Stockholm (SE); and Erik Eriksson, Linköping (SE)
Assigned to Telefonaktiebolagget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/275,889
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Sep. 14, 2018, PCT No. PCT/EP2018/074938
§ 371(c)(1), (2) Date Mar. 12, 2021,
PCT Pub. No. WO2020/052786, PCT Pub. Date Mar. 19, 2020.
Prior Publication US 2022/0046533 A1, Feb. 10, 2022
Int. Cl. H04W 52/02 (2009.01)
CPC H04W 52/0206 (2013.01) [H04W 52/0274 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for controlling a transmission system, the method comprising:
responsive to the occurrence of a condition for the transmission system to exit a sleep state in which certain transmission components of the transmission system are de-activated, triggering the transmission system to transition from the sleep state to an active state in which the certain transmission components are activated and comply with certain component performance requirements, the certain transmission components including an oscillator, the certain component performance requirements including a frequency error requirement of the oscillator;
controlling the transmission system to transmit, during at least a fraction of a transition period over which the transmission system transitions from the sleep state to the active state, in compliance with relaxed component performance requirements that are reduced with respect to the certain component performance requirements, the relaxed component performance requirements including a relaxed frequency error requirement that permits the oscillator to have larger frequency error than the frequency error requirement, the controlling comprising controlling the transmission system to transmit, during at least a fraction of the transition period, with a reduced capability that is reduced compared to a corresponding capability with which the transmission system is capable of transmitting in the active state and the reduced capability comprising one or more of a reduced maximum modulation order, a reduced maximum channel coding rate, a reduced maximum number of transmission streams, a reduced maximum number of component carriers, or a reduced maximum number of served users; and
signaling that the transmission system is: transmitting or will transmit during the transition period over which the transmission system transitions from the sleep state to the active state, transmitting or will transmit in compliance with relaxed component performance requirements, and transmitting or will transmit with a reduced transmission rate that is reduced compared to a transmission rate with which the transmission system is capable of transmitting in the active state.