Radio device, method to operate a radio device

A method to operate a transmitting radio device (TxDev) of a radio communications network (RCN), wherein the method comprises:

• transmitting, towards a receiving radio device (RxDev), first data (p1;
• p2) according to a first transmit mode (m1);
• determining a first transmit mode time period (m1t) of the first transmit mode (m1) so that the first transmit mode time period (m1t) is less than half of a sum of a survival time period (st) and a cycle time period (k) associated with the transmitting radio device (TxDev);
• determining a last reception time (t1) when a positive acknowledgment (ACK(p1)) was received from the receiving radio device (RxDev), the positive acknowledgement (ACK(p1) indicating a successful reception of the transmitted first data (p1) at the side of the receiving radio device (RxDev);
• and
• transmitting, towards the receiving radio device (RxDev), second data (p3) according to a second transmit mode (m2), wherein the second transmit mode (m2) is activated upon expiry of the first transmit mode time period (m1t) since the determined last reception time (t1).

A receiving radio device (RxDev) of a radio communications network (RCN), wherein said receiving radio device (RxDev) comprises at least one processor, at least one memory comprising computer program code, at least one communication module, and at least one antenna, wherein the computer program code is configured to interact with the at least one processor, the at least one communication module, and the at least one antenna to cause the receiving radio device (RxDev) at least to:

• receive, from a transmitting radio device (TxDev), first data (p4);
• determine a maximum value based on a first transmit mode time period (m1t) of a first transmit mode (m1) so that the first transmit mode time period (m1t) is less than half of a sum of a survival time period (st) and a cycle time period (k) associated with the transmitting radio device (TxDev);
• determine a last reception time (t1) when the first data (p4) was successfully received from the transmitting radio device (TxDev);
• and
• transmit, towards the transmitting radio device (TxDev), a second transmit mode indicator (m2i) upon expiry of the first transmit mode time period (m1t) since the determined last reception time (t1).

A method to operate a receiving radio device (RxDev) of a radio communications network (RCN), wherein the method comprises:

• receiving, from a transmitting radio device (TxDev), first data (p4);
• determining a maximum value based on a first transmit mode time period (m1t) of a first transmit mode (m1) so that the first transmit mode time period (m1t) is less than half of a sum of a survival time period (st) and a cycle time period (k) associated with the transmitting radio device (TxDev);
• determining a last reception time (t1) when the first data (p4) was successfully received from the transmitting radio device (TxDev);
• and
• transmitting, towards the transmitting radio device (TxDev), a second transmit mode indicator (m2i) upon expiry of the first transmit mode time period (m1t) since the determined last reception time (t1).

A transmitting radio device (TxDev) of a radio communications network (RCN), wherein said transmitting radio device (TxDev) comprises at least one processor, at least one memory comprising computer program code, at least one communication module, and at least one antenna, wherein the computer program code is configured to interact with the at least one processor, the at least one communication module, and the at least one antenna to cause the transmitting radio device (TxDev) at least to:

• transmit, towards a receiving radio device (RxDev), first data (p4;
• p5) according to a first transmit mode (m1);
• receive, from the receiving radio device (RxDev), a second transmit mode indicator (m2i), wherein the second transmit mode indicator (m2i) indicates that a first mode time period (m1t) of the first transmit mode (m1) has lapsed and the first transmit mode time period (m1t) is less than half of a sum of a survival time period (st) and a cycle time period (k);
• and
• transmit, towards the receiving radio device (RxDev), second data (p6) according to a second transmit mode (m2), wherein the second transmit mode (m2) is activated upon reception of the second transmit mode indicator (m2i).

A method to operate a transmitting radio device (TxDev) of a radio communications network (RCN), wherein the method comprises:

• transmitting, towards a receiving radio device (RxDev), first data (p4;
• p5) according to a first transmit mode (m1);
• receiving, from the receiving radio device (RxDev), a second transmit mode indicator (m2i), wherein the second transmit mode indicator (m2i) indicates that a first mode time period (m1t) of the first transmit mode (m1) has lapsed and the first transmit mode time period (m1t) is less than half of a sum of a survival time period (st) and a cycle time period (k);
• and
• transmitting, towards the receiving radio device (RxDev), second data (p6) according to a second transmit mode (m2), wherein the second transmit mode (m2) is activated upon reception of the second transmit mode indicator (m2i).

A transceiving radio device (TxRxDev) of a radio communications network (RCN), wherein said transceiving radio device (TxRxDev) comprises at least one processor, at least one memory comprising computer program code, at least one communication module, and at least one antenna, wherein the computer program code is configured to interact with the at least one processor, the at least one communication module, and the at least one antenna to cause the transceiving radio device (TxRxDev) at least to:

• receive from a transmitting radio device (TxDev), first data (p7;
• p8);
• transmit, to a receiving radio device (RxDev), the first data (p7;
• p8);
• determine a last reception time (t1) when a positive acknowledgment (ACK(p7)) was received from the receiving radio device (RxDev), the positive acknowledgement (ACK(p7)) indicating a successful reception of the transmitted first data (p7) at the side of the receiving radio device (RxDev);
• and
• transmit, towards the transmitting radio device (TxDev), a second transmit mode indicator (m2i) upon expiry of a first transmit mode time period (m1t) since the determined last reception time (t1), wherein the first transmit mode time period (m1t) of a first transmit mode (m1) is less than half of a sum of a survival time period (st) and a cycle time period (k) associated with the transmitting radio device (TxDev).

A method to operate a transceiving radio device (TxRxDev) of a radio communications network (RCN), wherein the method comprises:

• receiving from a transmitting radio device (TxDev), first data (p7;
• p8);
• transmitting, to a receiving radio device (RxDev), the first data (p7;
• p8);
• determining a last reception time (t1) when a positive acknowledgment (ACK(p7)) was received from the receiving radio device (RxDev), the positive acknowledgement (ACK(p7)) indicating a successful reception of the transmitted first data (p7) at the side of the receiving radio device (RxDev);
• and
• transmitting towards the transmitting radio device (TxDev), a second transmit mode indicator (m2i) upon expiry of a first transmit mode time period (m1t) since the determined last reception time (t1), wherein the first transmit mode time period (m1t) of a first transmit mode (m1) is less than half of a sum of a survival time period (st) and a cycle time period (k).