System and method for adjusting monitoring of timeslots during data transmission

• US 8,477,741 B2
• Filed: 04/20/2010
• Issued: 07/02/2013
• Est. Priority Date: 04/21/2009
• Status: Active Grant

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Hole, David Philip, Kreuzer, Werner, Dwyer, Johanna Lisa
• Primary Examiner(s): Huq, Obaidul
• Application Number:
  US12/763,970
• Publication Number:
  US 20100322206A1
• Time in Patent Office: 1,169 Days
• Field of Search: 370/241, 370/252, 370/310, 370/315, 370/316, 370/319, 370/321, 370/322, 370/328, 370/329, 370/336, 370/345, 370/347, 370/348, 370/431, 370/442, 370/443, 370/464, 370/478, 455/403, 455/422.1, 455/450, 455/452.1
• US Class Current: 370/336
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/535 based on resource usage policies
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station, and reducing a number of timeslots monitored by the user equipment to less than the first set of timeslots for communications. The method includes, after reducing the number of timeslots monitored by the user equipment to less than the first set of timeslots for communications, transmitting a block to the base station, the block signaling a resumption of timeslot monitoring by the user equipment, wherein the block includes at least one of a dummy block format, a specified block format, and a predetermined communication, and increasing the number of timeslots monitored by the user equipment.

Claims

1. A method for coordinating communications between a user equipment and a base station, comprising:

receiving an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station;

determining, at the user equipment, a usage metric defining a threshold for a communication activity between the user equipment and the base station;

after detecting, at the user equipment, that the communication activity between the user equipment and the base station has reached the threshold, reducing, at the user equipment and without an input from the base station, a number of timeslots monitored by the user equipment to a second set of timeslots having fewer timeslots than the first set of timeslots for communications; and

after reducing the number of timeslots monitored by the user equipment to the second set of timeslots;

transmitting a block to the base station, the block signaling a resumption of timeslot monitoring by the user equipment, wherein the block includes at least one of a dummy block format, a specified block format, and a predetermined communication, and

without receiving a second assignment of timeslots from the base station, increasing, at the user equipment, the number of timeslots monitored by the user equipment to the first set of timeslots.

2. The method of claim 1, wherein the block comprises a packet uplink dummy control block.

3. The method of claim 1, including, after reducing the number of timeslots monitored by the user equipment to less than the first set of timeslots for communications, transmitting a control block identifying one or more timeslots being monitored by the user equipment.

4. The method of claim 1, wherein receiving the assignment of the first set of timeslots includes receiving an assignment message from the base station.

5. The method of claim 1, wherein the usage metric is received at least one of in an assignment message and via packet data protocol (PDP) context establishment procedures.

6. A method for coordinating communications between a user equipment and a base station, comprising:

transmitting an assignment of a first set of timeslots for uplink and downlink communications between the user equipment and the base station;

determining, at the base station, a usage metric defining a threshold for a communication activity between the user equipment and the base station;

after detecting that the communication activity between the user equipment and the base station has reached the threshold, determining, at the base station and without transmitting an instruction to the user equipment, that the user equipment has reduced a number of timeslots monitored by the user equipment to a second set of timeslots having fewer timeslots than the first set of timeslots for communications; and

after determining that the user equipment is monitoring the second set of timeslots;

receiving a block from the user equipment, the block signaling a resumption of timeslot monitoring by the user equipment, wherein the block includes at least one of a dummy block format, a specified block format, and a predetermined communication, and

after receiving the block from the user equipment and without transmitting a second assignment of timeslots to the user equipment, communicating with the user equipment using the first set of timeslots.

7. The method of claim 6, wherein the block includes a packet uplink dummy control block.

8. The method of claim 6, including, after determining that the user equipment has reduced a number of timeslots monitored by the user equipment, receiving a control block from the user equipment identifying one or more timeslots being monitored by the user equipment.

9. The method of claim 6, wherein transmitting an assignment of a first set of timeslots includes transmitting an assignment message to the user equipment.

10. A user equipment for use with a communications network including a base station, comprising:

a processor configured to;

receive an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station;

determine a usage metric defining a threshold for a communication activity between the user equipment and the base station;

after detecting that the communication activity between the user equipment and the base station has reached the threshold, reduce, at the user equipment and without an input from the base station, a number of timeslots monitored by the user equipment to a second set of timeslots having fewer timeslots than the first set of timeslots for communications; and

after reducing the number of timeslots monitored by the user equipment to less than the first set of timeslots for communications;

transmit a block to the base station, the block signaling a resumption of timeslot monitoring by the user equipment, wherein the block includes at least one of a dummy block format, a specified block format, and a predetermined communication, and

without receiving a second assignment of timeslots from the base station, increase the number of timeslots monitored by the user equipment to the first set of timeslots.

11. A base station for use with a communications network including a user equipment, comprising:

a processor configured to;

transmit an assignment of a first set of timeslots for uplink and downlink communications between the user equipment and the base station;

determine a usage metric defining a threshold for a communication activity between the user equipment and the base station;

after detecting that the communication activity between the user equipment and the base station has reached the threshold, determine, without transmitting an instruction to the user equipment, that the user equipment has reduced a number of timeslots monitored by the user equipment to a second set of timeslots having fewer timeslots than the first set of timeslots for communications; and

after determining that the user equipment is monitoring the second set of timeslots;

receive a block from the user equipment, the block signaling a resumption of timeslot monitoring by the user equipment, wherein the block includes at least one of a dummy block format, a specified block format, and a predetermined communication, and

after receiving the block from the user equipment and without transmitting a second assignment of timeslots to the user equipment, communicating with the user equipment using the first set of timeslots.