Method and apparatus for logging

• US 9,647,914 B2
• Filed: 01/09/2013
• Issued: 05/09/2017
• Est. Priority Date: 01/09/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Sang Bum, Kim, Soeng Hun, Jeong, Kyeong In
• Primary Examiner(s): Pasia, Redentor
• Assistant Examiner(s): MAK, PETER K
• Application Number:
  US14/360,822
• Publication Number:
  US 20140317456A1
• Time in Patent Office: 1,581 Days
• CPC Class Codes: H04L 43/0847 Transmission error
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 52/228 using past power values or information
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/18 Management of setup rejection or failure
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention relates to a method and an apparatus for logging a radio resource control (RRC) failure of user equipment (UE) and receiving the log. According to one embodiment of the present invention, a method for logging an RRC failure of UE may comprise the steps of: attempting random access; if the failure of random access is sensed, logging information on the failure; and if the success of random access is sensed, transmitting information on the failure logged before the success to a connected base station. According to one embodiment of the present invention, an apparatus and a method which effectively log a channel state or a connection failure can be provided.

Claims

1. A terminal in a wireless communication system, the terminal comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

transmit, through the transceiver, at least one preamble for a random access,

transmit, through the transceiver, a first message for requesting a radio resource control (RRC) connection setup,

start a timer,

set, if the timer expires, first information indicating whether a maximum power level was used for a last transmitted preamble among the at least one transmitted preamble, and

transmit, through the transceiver, a second message including the first information.

2. The terminal of claim 1, wherein the controller is further configured to increase a transmit power level for the at least one preamble step by step.

3. The terminal of claim 1, wherein the controller is further configured to set, if the timer expires, second information indicating a number of the at least one transmitted preamble.

4. The terminal of claim 3, wherein the controller is further configured to perform, if the timer expires, at least one of:

setting a cell identity of a cell;

setting channel measurement information of the cell;

setting channel measurement information of at least one neighbor cell;

or

setting a content of location information.

5. The terminal of claim 4, wherein the second message further includes at least one of the second information indicating the number of the at least one transmitted preamble, the cell identity of the cell, the channel measurement information of the cell, the channel measurement information of the at least one neighbor cell, or the content of the location information.

6. A method performed by a terminal in a wireless communication system, the method comprising:

transmitting at least one preamble for a random access;

transmitting a first message for requesting a radio resource control (RRC) connection setup;

starting a timer;

setting, if the timer expires, first information indicating whether a maximum power level was used for a last transmitted preamble among the at least one transmitted preamble; and

transmitting a second message including the first information.

7. The method of claim 6, wherein the at least one preamble is transmitted by increasing a transmit power level step by step.

8. The method of claim 6, further comprising:

setting, if the timer expires, second information indicating a number of the at least one transmitted preamble.

9. The method of claim 8, further comprising, if the timer expires, at least one of:

setting a cell identity of a cell;

setting channel measurement information of the cell;

setting channel measurement information of at least one neighbor cell;

or

setting a content of location information.

10. The method of claim 9, wherein the second message further includes at least one of the second information indicating the number of the at least one transmitted preamble, the cell identity of the cell, the channel measurement information of the cell, the channel measurement information of the at least one neighbor cell, or the content of the location information.