Infineon Technologies Ag

Intel Mobile Communications Gmbh

Alexander Uwah

Roland Hellfajer

Britta Felbecker

Markus Hammes

Dieter Brückmann

This disclosure relates frequency channel qualification in wire-free communications system.

Channel qualification for an adaptive frequency hopping method by means of bit or packet error rate measurement and simultaneous field strength measurement

A packet-oriented mobile radio transmission system takes account of a packet utilization level that indicates how much of the maximum amount of payload information that can be transmitted is used for transmission. Such packet utilization level is a function of the packet type. A packet type that is suitable in the respective reception conditions is selected at the receiving end as a function of a variable that is characteristic of the integrity of the received data, and of the packet utilization level. At the transmission end, the packet type is switched as a function of the selection result.

Optimization of the data throughput of a mobile radio connection by efficient packet type changing

In a method for channel qualification and selection, an actual data packet length and a data packet error rate in a received data packet are determined, and are used for a qualification decision. The measured data packet error rate is compared with a previously calculated data packet error threshold value, which depends on an assumed bit error rate and the ratio of a possible actual to a maximum data packet length.

Channel qualification and selection in a multichannel radio system by packet error rate measurement

In a method for qualification of a frequency channel in a wire-free communication system, data is transmitted on different frequency channels by means of an adaptive frequency hopping method. The transmission and reception are carried out in time slots using a time slot method which is based on the radio standard. In order to qualify the transmission quality of the frequency channels, data packet error rates and/or bit error rates and the field strength of the received data signal are measured, and the measured field strength is compared with a threshold value field strength in order to make a selection decision.

Growing community of inventors

Mülheim, Germany

Alexander Uwah