User station for a serial bus system, and method for communicating in a serial bus system

A user station for a serial bus system, comprising:

• a communication control device configured to control a communication of the user station with at least one other user station of the bus system;
• and
• a transceiver device configured to transmit a transmission signal, generated by the communication control device, onto a bus of the bus system, so that for a message that is exchanged between the user stations of the bus system, a bit time of a signal transmitted onto the bus in a first communication phase may differ from a bit time of a signal transmitted in a second communication phase;
• wherein the communication control device is configured to generate the transmission signal according to a frame, and to insert into the frame at least one field that is configured for checking whether a bit stream of the frame in a user station of the bus system that receives the frame is shifted by at least one bit compared to an expected frame.

A bus system, comprising:

• a bus;
• and
• at least two user stations that are connected to one another via the bus in such a way that they may communicate serially with one another, and of which at least one user station is a user station including:
• a communication control device configured to control a communication of the user station with at least one other user station of the bus system, and
• a transceiver device configured to transmit a transmission signal, generated by the communication control device, onto a bus of the bus system, so that for a message that is exchanged between the user stations of the bus system, a bit time of a signal transmitted onto the bus in a first communication phase may differ from a bit time of a signal transmitted in a second communication phase,
• wherein the communication control device is configured to generate the transmission signal according to a frame, and to insert into the frame at least one field that is configured for checking whether a bit stream of the frame in a user station of the bus system that receives the frame is shifted by at least one bit compared to an expected frame.