Uplink transmission power and bit rate control
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsKrister Norlund, Anders Hansson
Life of this patent
Estimating the term…
Abstract
Joint uplink transmission power and bit rate control is provided. Data bits are received by a network Node B on an enhanced dedicated channel, E-DCH, from a user equipment, UE. End-user quality of service, QoS, for the received data bits is estimated. System coverage at a radio receiver of the network Node B is estimated. The estimated end-user QoS and the estimated system coverage represent a current working point of the UE. The current working point of the UE is related to a preferred working point. As a result thereof a transmission power control, TPC, command and a scheduling grant, SG, is determined for the UE so as to move the current working point towards the preferred working point and thereby adjust uplink transmission power and bit rate.
Claims21
A method of joint uplink transmission power and bit rate control, the method being performed in a network Node B, comprising the steps of:
- receiving data bits on an enhanced dedicated channel (E-DCH) from a user equipment, UE;
- estimating end-user quality of service (QoS) for the received data bits;
- estimating system coverage at a radio receiver of the network Node B;
- wherein the estimated end-user QoS and the estimated system coverage represent a current working point of the UE;
- relating the current working point of the UE to a preferred working point;
- and as a result thereof:
- determining a transmission power control (TPC) command and a scheduling grant (SG) for the UE so as to move the current working point towards the preferred working point and thereby adjust uplink transmission power and bit rate.
The method according to 6, wherein the preferred system coverage range corresponds to a RoT between 15 and 20 dB.
A network Node B for joint uplink transmission power and bit rate control, comprising:
- a receiver arranged to receive data bits on an enhanced dedicated channel (E-DCH) from a user equipment (UE);
- a processing unit arranged to estimate end-user quality of service (QoS) for the received data bits;
- the processing unit further being arranged to estimate system coverage at a radio receiver of the network Node B;
- wherein the estimated end-user QoS and the estimated system coverage represent a current working point of the UE;
- the processing unit further being arranged to relate the current working point of the UE to a preferred working point;
- and
- the processing unit further being arranged to, as a result thereof, determine a transmission power control (TPC) command and a scheduling grant (SG) for the UE so as to move the current working point towards the preferred working point and thereby adjust uplink transmission power and bit rate.
A non-transitory computer readable storage medium comprising a computer program of joint uplink transmission power and bit rate control, the computer program comprising computer program code which, when run on a network Node B, causes the network Node B to:
- receive data bits on an enhanced dedicated channel (E-DCH) from a user equipment (UE);
- estimate end-user quality of service (QoS) for the received data bits;
- estimate system coverage at a radio receiver of the network Node B;
- wherein the estimated end-user QoS and the estimated system coverage represent a current working point of the UE;
- relate the current working point of the UE to a preferred working point;
- and as a result thereof:
- determine a transmission power control (TPC) command and a scheduling grant (SG) for the UE so as to move the current working point towards the preferred working point and thereby adjust uplink transmission power and bit rate.
(canceled)
Dependencies are inferred from the claim text.