Methods and nodes for controlling uplink transmissions

A network node of a wireless network, the network node being arranged to control uplink transmission from wireless devices, the network node comprising:

• a memory storing a computer program;
• and
• a processor operable to execute the computer program to cause the processor to:
• signal a first Absolute Grant Scope (AGS) bit to a first wireless device, wherein the first AGS bit includes a first value indicating a grant for a first uplink transmission in only a first Transmit Time Interval (TTI), the value of the first AGS bit also indicating that a previous grant for persistent uplink transmission during any number of Transmit Time Intervals (TTIs) is terminated and the first wireless device is to cease transmissions after the first TTI;
• schedule a second wireless device for a second uplink transmission in a second TTI that is immediately after the first TTI;
• signal a second ABS bit to the second wireless device, wherein the second AGS bit includes a second value indicating a grant for a second uplink transmission in only the second TTI that is immediately after the first TTI;
• and
• receive the second uplink transmission from the second wireless device in the second TTI that is immediately after the first TTI.

A wireless device arranged to control uplink transmission when being served by a network node of a wireless network, the wireless device comprising:

• a memory storing a computer program;
• and
• a processor operable to execute the computer program to cause the processor to receive an Absolute Grant Scope (AGS) bit from a network node, wherein the AGS bit includes a first value indicating a grant for a first uplink transmission in only a first Transmit Time Interval (TTI), the value of the AGS bit also indicating that a previous grant for persistent uplink transmission during any number of TTIs is terminated and the first wireless device is to cease transmissions after the first TTI;
• wherein a second wireless device that is also served by the network node is scheduled for a second uplink transmission in only a second TTI that is immediately after the first TTI.