Methods and nodes for controlling uplink transmissions

Patent metadata

Field	Value
Publication number	US-10455567-B2
Application number	US-201715618440-A
Country	US
Kind code	B2
Filing date	Jun 9, 2017
Priority date	Apr 1, 2014
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

A network node (100), a wireless device (102) and methods therein, for controlling uplink transmission from the wireless device (102), e.g. in a time division multiplexing scheme. The network node (100) signals (1:2) an Absolute Grant Scope, AGS, bit to the wireless device (102), wherein the AGS bit indicates one of: the wireless device (102) is granted for uplink transmission (204) during a single Transmit Time Interval, TTI, and the wireless device (102) is granted for uplink transmission (206) until a next grant is signalled to the wireless device (102).

First claim

The invention claimed is:

1. A method, performed by a network node of a wireless network, for controlling uplink transmission from wireless devices, the method comprising:
signalling 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 TTIs is terminated and the first wireless device is to cease transmissions after the first TTI;
scheduling a second wireless device for a second uplink transmission in a second TTI that is immediately after the first TTI;
signalling 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
receiving the second uplink transmission from the second wireless device in the second TTI that is immediately after the first TTI.

2. A method according to claim 1 , wherein the network node signals the first AGS bit in an Enhanced Dedicated Channel, E-DCH, Absolute Grant Channel, E-AGCH.

3. A method according to claim 1 , wherein the network node signals the first AGS bit to grant the first uplink transmission from the wireless device on a clean carrier dedicated to high bitrate transmissions.

4. A method according to claim 1 , wherein the first value of the first AGS bit that indicates the grant for the first uplink transmission during only the first TTI is different than a third value of the AGS bit that indicated the grant for the persistent uplink transmission during the any number of TTIs.

5. 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.

6. A network node according to claim 5 , wherein the processor is operable to signal the first AGS bit in an Enhanced Dedicated Channel, E-DCH, Absolute Grant Channel, E-AGCH.

7. A network node according to claim 1 , wherein the processor is operable to signal the first AGS bit to grant the first uplink transmission from the first wireless device on a clean carrier dedicated to high bitrate transmissions.

8. A network node according to claim 1 , wherein the first value of the first AGS bit that indicates the grant for uplink transmission during only the first TTI is different than a third value of the AGS bit that indicated the grant for the persistent uplink transmission during the any number of TTIs.

9. A method, performed by a first wireless device being served by a network node of a wireless network, for controlling uplink transmission, the method comprising:
receiving from the network node signaling with a first Absolute Grant Scope (AGS) bit, 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.

10. A method according to claim 9 , wherein the wireless device receives the AGS bit from the network node in an Enhanced Dedicated Channel, E-DCH, Absolute Grant Channel, E-AGCH.

11. A method according to claim 9 , wherein the AGS bit received from the network node grants the first uplink transmission on a clean carrier dedicated to high bitrate transmissions.

12. A method according to claim 9 , wherein the wireless device interprets the first value of the AGS bit as indicating the grant for the first uplink transmission during only the first TTI, and wherein the first value is different than a second value of the AGS bit used to indicate the previous grant for the persistent uplink transmission during the any number of TTIs.

13. 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.

14. A wireless device according to claim 13 , wherein the processor is further operable to receive the AGS bit from the network node in an Enhanced Dedicated Channel, E-DCH, Absolute Grant Channel, E-AGCH.

15. A wireless device according to claim 13 , wherein the AGS bit grants the first uplink transmission on a clean carrier dedicated to high bitrate transmissions.

16. A wireless device according to claim 13 , wherein the processor is further operable to execute the computer program to cause the processor to interpret the first value of the AGS bit as indicating the grant for the first uplink transmission during only the first TTI, and wherein the first value is different than a second value of the AGS bit used to indicate the previous grant for the persistent uplink transmission during the any number of TTIs.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Konuskan Cagatay
• Hogan Billy
• Kwong Waikwok
• Medina Acosta Gerardo Agni

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W74/006

  in the downlink, i.e. towards the terminal · CPC title

• H04W28/22

  Negotiating communication rate · CPC title

• H04W72/042 Primary

  Electricity · mapped topic

• H04W72/14

  Electricity · mapped topic