Method and apparatus for user equipment directed radio resource control in a UMTS network

• US 9,661,611 B2
• Filed: 03/19/2014
• Issued: 05/23/2017
• Est. Priority Date: 12/14/2005
• Status: Active Grant

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Islam, Muhammad Khaledul, Wirtanen, Jeffery
• Primary Examiner(s): Nguyen, Tu X
• Application Number:
  US14/219,333
• Publication Number:
  US 20140206369A1
• Time in Patent Office: 1,161 Days
• Field of Search: 455574, 455450
• CPC Class Codes: H04W 52/0251 using monitoring of local events, e.g. events related to user activity
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and apparatus for improved battery performance of user equipment in a wireless network having multiple radio resource control (RRC) states, the method comprising the steps of: monitoring, at the user equipment, application data exchange; determining when no application on the user equipment is expected to exchange data; and initiating, from the user equipment, a transition to a less battery demanding radio resource control state or mode.

Claims

1. A method performed by a user equipment (UE) to report preference information relating to a radio resource control (RRC) configuration, the method comprising:

determining no applications executed on the UE are expected to exchange data;

in response to no expected data, determining a delay for transmitting an RRC preference indication based on at least one of traffic history or application profiles;

after expiration of the delay, transmitting, at the UE, an RRC preference indication to a wireless network while the UE is in a connected state and the connected state comprises a CELL_DCH state, the indication relating to a preference for a more battery-efficient RRC configuration; and

in response to the RRC preference indication, receiving a message from the wireless network to adjust the RRC configuration, wherein the message received from the wireless network causes the UE to change a discontinuous reception (DRX) configuration, wherein the UE continues to be in the connected state after the UE changes the DRX configuration in response to the message from the wireless network.

2. The method of claim 1, further comprising receiving at a connection manager within the UE, status indications for each of a plurality of applications running on the UE.

3. The method of claim 2, further comprising determining, based at least in part on the received status indications, a preference relating to the RRC configuration.

4. The method of claim 1, wherein the message received from the wireless network causes a dedicated channel previously allocated to the UE to be released.

5. The method of claim 1, wherein the message received from the wireless network causes a change in data rate of a radio resource assigned to the UE.

6. The method of claim 1, wherein the connected state provides a higher latency for downlink data after the change in the DRX configuration.

7. A user equipment (UE) to report preference information relating to a radio resource control (RRC) configuration comprising a processor, the processor configured to:

determine no applications executed on the UE are expected to exchange data;

in response to no expected data, determine a delay for transmitting an RRC preference indication based on at least one of traffic history or application profiles;

after expiration of the delay, transmit an RRC preference indication to a wireless network while the UE is in a connected state and the connected state comprises a CELL_DCH state, the indication relating to a preference for a more battery-efficient RRC configuration; and

in response to the RRC preference indication, receive a message from the wireless network to adjust the RRC configuration, wherein the message received from the wireless network causes the UE to change a discontinuous reception (DRX) configuration, wherein the UE continues to be in the connected state after the UE changes the DRX configuration in response to the message from the wireless network.

8. The UE of claim 7, wherein the processor is further configured to receive at a connection manager within the UE, status indications for each of a plurality of applications running on the UE.

9. The UE of claim 8, wherein the processor is further configured to determine, based at least in part on the received status indications, a preference relating to the RRC configuration.

10. The UE of claim 7, wherein the message received from the wireless network causes a dedicated channel previously allocated to the UE to be released.

11. The UE of claim 7, wherein the message received from the wireless network causes a change in data rate of a radio resource assigned to the UE.

12. The UE of claim 7, wherein the connected state provides a higher latency for downlink data after the change in the DRX configuration.