Methods and devices for granting DPCCH bursts for enhanced uplink

Patent metadata

Field	Value
Publication number	US-10149316-B2
Application number	US-201415024512-A
Country	US
Kind code	B2
Filing date	Sep 26, 2014
Priority date	Sep 27, 2013
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

The present invention relates to granting time intervals for transmitting a control signal burst and, more particularly, to methods and devices for granting Dedicated Physical Control Channel (DPCCH) bursts for Wideband Code Division Multiple Access (WCDMA). A base station determines whether a predetermined condition for transmitting a grant signal is satisfied and, if so, determines a schedule for receiving a control signal burst from a mobile device and transmits, in accordance with the determined schedule, the grant signal to at least said mobile device. Correspondingly, a mobile device transmits a report to a base station causing it to determine, in accordance with the report, a schedule for transmitting a control signal burst. Then the mobile device receives grant signals in accordance with the determined schedule and transmits a control signal burst in accordance with the grant signal.

First claim

The invention claimed is:

1. A method implemented in a base station that is in communication with a plurality of mobile devices in a communications network, the method comprising:
determining whether a predetermined condition for transmitting a grant signal is satisfied by receiving a report from a first mobile device included in the plurality of mobile devices and comparing the received report with other reports received from other mobile devices, wherein the report specifies an amount of data that the first mobile device needs to transmit to the base station;
in response to determining that the predetermined condition is satisfied, determining, a schedule for receiving a control signal burst from the first mobile device, wherein the schedule for receiving the control signal burst from the first mobile device is determined in accordance with the received report; and
transmitting, in accordance with the determined schedule, the grant signal to at least the first mobile device included in the plurality of mobile devices that causes the first mobile device to transmit the control signal burst to the base station in accordance with the grant signal.

2. The method according to claim 1 , wherein the control signal burst is a Dedicated Physical Control Channel (DPCCH) burst that is transmitted over a control channel.

3. The method according to claim 2 , wherein the grant signal specifies a data rate for transmission of data over a data channel that is separate from the control channel.

4. The method according to claim 1 , wherein the predetermined condition specifies receiving the report from the first mobile device included in the plurality of mobile devices.

5. The method according to claim 1 , wherein the predetermined condition specifies that a predetermined period of time has elapsed since the base station received a control signal burst or data from the first mobile device.

6. The method according to claim 1 , wherein the grant signal specifies a time limit in which the first mobile device must transmit the control signal burst.

7. The method according to claim 1 , wherein the grant signal specifies that the first mobile device is permitted to transmit data after transmission of the control burst signal.

8. The method according to claim 1 , wherein the grant signal specifies that the control signal burst must be transmitted on a control channel other than a DPCCH control channel.

9. The method according to claim 1 , wherein the schedule is determined such that the first mobile device is scheduled to transmit the control signal burst during a time period in which no other mobile device included in the plurality of mobile devices is permitted to transmit the control signal burst to the base station.

10. The method according to claim 1 , wherein the first mobile device is scheduled to transmit the control signal burst ahead of a second mobile device from the plurality of mobile devices that includes an amount of buffered data less than the first mobile device.

11. The method according to claim 1 , wherein the control signal burst is transmitted to the base station regardless of an amount of data buffered at the first mobile device.

12. A method implemented in a mobile device that is in communication with a base station in a communications network, the method comprising:
transmitting a report to the base station that causes the base station to determine, in accordance with the report, a schedule for transmitting a control signal burst, wherein the report specifies an amount of data that the first mobile device needs to transmit to the base station;
receiving in accordance with the determined schedule, a grant signal from the base station; and
transmitting a control signal burst in accordance with the grant signal;
wherein the schedule is determined such that the mobile device is scheduled to transmit the control signal burst during a time period in which no other mobile device in communication with the base station is permitted to transmit the control signal burst to the base station.

13. The method according to claim 12 , wherein the control signal burst is a Dedicated Physical Control Channel (DPCCH) burst that is transmitted over a control channel.

14. The method according to claim 13 , wherein the grant signal specifies a data rate for transmission of data over a data channel that is separate from the control channel.

15. The method according to claim 12 , wherein the grant signal specifies a time limit in which the mobile device must transmit the control signal burst.

16. The method according to claim 12 , wherein the grant signal specifies that the mobile device is permitted to transmit data after transmission of the control burst signal.

17. The method according to claim 12 , wherein the grant signal specifies that the control signal burst must be transmitted on a control channel other than a DPCCH control channel.

18. The method according to claim 12 , wherein the mobile device is scheduled to transmit the control signal burst ahead of another mobile device in communication with the base station that includes an amount of buffered data less than the mobile device.

19. The method according to claim 12 , wherein the control signal burst is transmitted to the base station regardless of an amount of data buffered at the mobile device.

20. A base station that is in communication with a plurality of mobile devices in a communications network, the base station comprising:
a processor;
a memory coupled to the processor;
a transceiver coupled to the processor; and
an antenna coupled to the transceiver configured to transmit and receive messages,
wherein the processor is configured to:
determine whether a predetermined condition for transmitting a grant signal is satisfied by receiving a report from a first mobile device included in the plurality of mobile devices and comparing the received report with other reports received from other mobile devices, wherein the report specifies an amount of data that the first mobile device needs to transmit to the base station;
in response to determining that the predetermined condition is satisfied, determine a schedule for receiving a control signal burst from the first mobile device, wherein the schedule for receiving the control signal burst from the first mobile device is determined in accordance with the received report; and
transmit, in accordance with the determined schedule, a grant signal to at least a first mobile device included in the plurality of mobile devices that causes the first mobile device to transmit the control signal burst to the base station in accordance with the grant signal.

21. The base station according to 20 , wherein the control signal burst is a Dedicated Physical Control Channel (DPCCH) burst that is transmitted over a control channel.

22. The base station according to claim 21 , wherein the grant signal specifies a data rate for transmission of data over a data channel that is separate from the control channel.

23. The base station according to claim 20 , wherein the predetermined condition specifies receiving a report from the first mobile device included in the plurality of mobile devices.

24. The base station according to claim 20 , wherein the predetermined condition specifies that a predetermined period of time has elapsed since the base station received a control signal burst or data from the first mobile device.

25. The base station accor

Assignees

• Ericsson Telefon Ab L M

Inventors

• Hogan Billy
• Konuskan Cagatay
• Medina Acosta Gerardo Agni
• Tessier Stéphane

Classifications

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/20 Primary

  Control channels or signalling for resource management · CPC title

• H04W72/0406

  Electricity · mapped topic

• H04W72/1278 Primary

  Electricity · mapped topic

• H04W72/1284

  Electricity · mapped topic