UL/DL SCHEDULING FOR FULL BANDWIDTH UTILIZATION

• US 20090275340A1
• Filed: 04/30/2008
• Published: 11/05/2009
• Est. Priority Date: 04/30/2008
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Schliwa-Bertling, Paul, Ahl, Johnny, Axelsson, Hakan
• Granted Patent: US 8,081,984 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/569 of the traffic information

Abstract

A method may include receiving, by a user equipment incapable of transmitting and receiving simultaneously, a schedule to transmit data on an uplink, detecting, by the user equipment, whether there is data to be transmitted on the uplink, and receiving, by the user equipment, during a time corresponding to the schedule, data associated with a downlink, when it is determined that there is no data to be transmitted.

Claims

1. A method, comprising:

receiving, by a user equipment incapable of transmitting and receiving simultaneously, a schedule to transmit data on an uplink;

detecting, by the user equipment, whether there is data to be transmitted on the uplink; and

receiving, by the user equipment, during a time corresponding to the schedule, data associated with a downlink, when it is determined that there is no data to be transmitted.

2. The method of claim 1, further comprising:

prioritizing the transmission of the data on the uplink over the receiving of data associated with the downlink, when it is determined that there is data to be transmitted on the uplink; and

transmitting the data on the uplink based on the schedule.

3. The method of claim 1, further comprising:

prioritizing the transmission of the data on the uplink over the receiving of data associated with the downlink, when it is determined that there is data to be transmitted on the uplink; and

selecting a time within the schedule to begin transmitting the data on the uplink so that a remaining time within the schedule for receiving data associated with the downlink is maximized.

4. The method of claim 3, where the data to be transmitted is of an amount that is smaller than an available bandwidth associated with the schedule.

5. The method of claim 1, further comprising:

receiving, by the user equipment, data on the downlink, during the time corresponding to the schedule.

6. The method of claim 1, where the user equipment is operating in one of extended dynamic allocation mode or dynamic allocation mode.

7. The method of claim 1, where the schedule to transmit the data identifies timeslots associated with an uplink timeslot assignment.

8. The method of claim 7, further comprising:

selecting from the timeslots, by the user equipment, beginning from a latest timeslot of the timeslots for transmitting the data, when it is determined that there is data to be transmitted on the uplink.

9. A device comprising:

a memory to store instructions; and

a processor to execute the instructions to;

receive an uplink schedule to transmit to another device,

detect whether there is data to be transmitted, and

select a time within a time window of the uplink schedule to transmit when it is determined that there is data to be transmitted, or receive from a downlink within the time window of the uplink schedule, when it is determined that there is no data to be transmitted, where the device is of a multislot class that is incapable of receiving from the downlink and transmitting to the uplink at the same time.

10. The device of claim 9, where the processor is further configured to:

prioritize a transmission of the data over receiving from the downlink, when it is determined that there is data to be transmitted.

11. The device of claim 9, where, when selecting the time, the processor is further configured to:

select a timeslot to begin transmitting so that a remaining time within the uplink schedule is used for receiving from the downlink.

12. The device of claim 9, where the processor is further configured to:

transmit the data on the uplink based on the selected time.

13. The device of claim 12, where the processor is further configured to:

receive from the downlink within the time window of the uplink schedule before the data is transmitted on the uplink.

14. The device of claim 9, where the device includes a mobile telephone.

15. The device of claim 9, where the device includes a user equipment compatible with a Global Systems for Mobile communications/EDGE Radio Access Network (GERAN) specification.

16. A device comprising:

a memory to store instructions; and

a processor to execute the instructions to;

recognize a multislot class of a user equipment that is incapable of receiving and transmitting simultaneously,

transmit on a downlink to the user equipment a schedule for the user equipment to transmit, and

transmit data on the downlink to the user equipment to be received during the schedule to transmit.

17. The device of claim 16, where the device includes a wireless station of a mobile network.

18. A system comprising:

a user equipment capable of;

receiving an uplink schedule to transmit;

reading the uplink schedule;

determining whether there is data to be transmitted;

prioritizing a transmission of data when it is determined that there is data to be transmitted and transmitting the data based on the uplink schedule, or

receiving data associated with a downlink during the uplink schedule when it is determined that there is no data to be transmitted.

19. The system of claim 18, where the user equipment is incapable of transmitting and receiving at the same time.

20. The system of claim 18, further comprising:

a wireless station capable of;

transmitting to the user equipment the uplink schedule to transmit.

21. A computer-readable medium containing instructions executable by at least one processor of a device that is incapable of receiving and transmitting at the same time, the computer-readable medium comprising:

one or more instructions for receiving a schedule to transmit data on an uplink;

one or more instructions for determining whether there is data to be transmitted on the uplink; and

one or more instructions for receiving data associated with a downlink, during a time corresponding to the schedule to transmit, when it is determined that there is no data to be transmitted.

22. The computer-readable medium of claim 21, where the device includes a user equipment of a Type 1 classification.

23. The computer-readable medium of claim 21, further comprising:

one or more instructions for prioritizing a transmission of data over the receiving of data associated with the downlink, when it is determined that there is data to be transmitted on the uplink; and

one or more instructions for selecting timeslots within the schedule to transmit, beginning from a latest timeslot of the timeslots, to be utilized to transmit the data.