RACH procedures and power level for MTC devices

摘要

The present document relates to a wireless device in a digital cellular telecommunications network. For example, the present document relates to the request of an access channel from a wireless device to a base station of the digital cellular telecommunications network. Example methods for controlling one or more transmissions between a wireless device and a base station are described. The one or more transmissions include at least an initial transmission. One example method comprises determining the quality of a radio uplink between the wireless device and the base station, the quality being based on at least one parameter associated with a previous transmission; setting a control parameter for controlling the transmission between the wireless device and the base station based on the determined quality of the radio uplink; and transmitting the initial transmission.

主权项

1. A method, for use in a wireless device, for controlling one or more transmissions between the wireless device and a base station, the one or more transmissions including at least an initial transmission on a radio uplink from the wireless device to the base station, the method comprising:
determining a quality of the radio uplink between the wireless device and the base station, the quality being based on at least one parameter used for a previous transmission on the radio uplink from the wireless device to the base station; setting a control parameter for controlling the initial transmission between the wireless device and the base station based on the determined quality of the radio uplink; and transmitting the initial transmission, wherein determining the quality comprises: providing a plurality of previous modulation and coding schemes used for a plurality of previous transmissions on the radio uplink; determining a plurality of bit-rates associated with the plurality of previous modulation and coding schemes; applying a filter to the plurality of bit-rates; and determining the quality based on the filtered plurality of bit-rates.