Telefonaktiebolaget Lm Ericsson (publ)

Dejan Miljkovic

Jonas Bengtsson

Per-Inge Tallberg

Tönu Trump

Dan Korsfeldt

Karol Krakowiak

Johan Svensson

Jens Kongstad

Niklas Larsson

Milica Bogdanovic

Peter Nessrup

A scheduler and method for scheduling data transmission in a wireless communication system are disclosed. The scheduler buffers data packets in a buffer and monitors status of the buffer. The buffered data packets will remain in the buffer, until the buffer contains a data packet which is associated with a priority level higher than a priority level of a predefined priority threshold. Then, the scheduler selects a modulation and coding scheme for the buffered data packets and sends the buffered data packets to a radio unit for transmission.

Scheduler and methods therein for scheduling data transmission in a wireless communication system

A method and arrangement in a receiving communication device for compensating for the difference between the clock-frequency controlled sample rate of the receiving device and the sample rate of a sending communication device. The sending device transmits packets comprising M audio samples to be stored in a buffer in the receiving device accommodating at least 2&#xb7;M samples before play-out. An estimation of the clock skew is continuously updated from a calculated accumulated difference between an expected and an actual point of time of reception of the M audio samples. Before play-out, an adjusted number N of audio samples to be read from the buffer before play-out is calculated using the estimated clock skew. Thereafter, the N audio samples are resampled by interpolation to M audio samples to play-out.

Clock skew compensation

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Solna, Sweden

Dejan Miljkovic