Method and apparatus for determining transmitter identification information in terrestrial digital multimedia broadcasting system

• US 20060239378A1
• Filed: 03/27/2006
• Published: 10/26/2006
• Est. Priority Date: 03/25/2005
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jung, Suk-Jin, Lee, Kyung-Ha, Lee, Kyung-Eun
• Application Number:
  US11/389,529
• Publication Number:
  US 20060239378A1
• Time in Patent Office: Days
• US Class Current: 375/295
• CPC Class Codes: H04H 20/28 Arrangements for simultaneous broadcast of plural pieces of information
• CPC Class Codes: H04H 60/74 using programme related information, e.g. title, composer or interpreter
• CPC Class Codes: H04N 21/2265 Server identification by a unique number or address, e.g. serial number network arrangements, protocols or services for addressing or naming H04L61/00
• CPC Class Codes: H04N 21/6112 involving terrestrial transmission, e.g. DVB-T
• CPC Class Codes: H04N 7/1675 Providing digital key or authorisation information for generation or regeneration of the scrambling sequence pseudo-random number generators in general G06F7/58

Abstract

An apparatus and method are provided for determining transmitter identification information (TII) in terrestrial digital multimedia broadcasting (T-DMB) system. The TII is detected by determining whether the TII occurs during the slot for a null symbol. The detected TII is stored into a TII database preferably continuously until a point of time for a TII update, and a TII detection result is output at the point of time for the TII update.

Claims

1. A method for determining transmitter identification information (TII) in a terrestrial digital multimedia broadcasting (T-DMB) system, the method comprising the steps of:

detecting the TII occurs during the slot for a null symbol;

storing the detected TII into a TII database until a point of time for a TII update; and

outputting a TII detection result at the point of time for the TII update,

wherein the point of time for the TII update comprises a time when the value of a Common Interleaved Frame (CIF) counter is a predetermined target value.

2. The method as claimed in claim 1, wherein the detection result is output as a value of the detected TII.

3. The method as claimed in claim 1, wherein the detection result is output as a maximum frequency value of the detected TII associated with an accumulative or average value of the detected TII thereof.

4. A method for determining transmitter identification information (TII) in a terrestrial digital multimedia broadcasting (T-DMB) system, the method comprising the steps of:

initializing a value of a detection repetition counter;

detecting the TII during the slot for a null symbol;

storing the detected TII into a TII database until a point of time for a TII update;

increasing the value of the detection repetition counter except in the case of a point of time for a TII update, and determining whether the detection repetition counter is a predetermined target value; and

outputting a TII detection result at the point of time for the TII update,

wherein information comprising the point of time for a TII update is transmitted via a predetermined field.

5. The method as claimed in claim 4, further comprising the step of determining a mode at the point of time for a TII update.

6. The method as claimed in claim 5, wherein the mode comprises a restart mode for returning to the step of initializing, or a utilization mode of interim findings for jumping to the step of outputting.

7. The method as claimed in claim 4, wherein the predetermined field is Fast Information Group (FIG) Type 0 field for extension 8.

8. The method as claimed in claim 4, wherein the detection result is output as a value of the detected TII.

9. The method as claimed in claim 4, wherein the detection result is output as a maximum frequency value of the detected TII associated with an accumulative or average value of the detected TII thereof.

10. A transmission system for determining transmitter identification information (TII) in a terrestrial digital multimedia broadcasting (T-DMB) system, the system comprising:

a key center for storing a value of a Common Interleaved Frame (CIF) counter;

a Fast Information Channel (FIC) for including CIF counter update information provided from the key center at a predetermined field when the TII is updated;

a Main Service Channel (MSC) comprising broadcast data;

a stream generator for generating a frame by multiplexing the FIC and the MSC; and

a transmitter for transmitting the multiplexed frame.

11. The system as claimed in claim 10, wherein the key center is provided a value of the CIF counter from the stream generator.

12. A receiver for determining transmitter identification information (TII) in a terrestrial digital multimedia broadcasting (T-DMB) system, the receiver comprising:

a radio frequency (RF) block;

a broadcasting data (BD) block for decoding a synchronization channel (SC) in broadcast data provided from the RF block;

a detector for detecting the TII by using a null symbol and a common interleaved frame (CIF) counter provided from the BD block;

a fast information channel (FIC) decoder for decoding the FIC in broadcast data provided from the BD block;

a network identification system (NIS) decoder for identifying a network by using the TII and entitlement checking messages (ECM) provided from the FIC decoder;

a descrambler for descrambling broadcast data provided from the BD block and a network identification information (NII) provided from the NIS decoder; and

a broadcasting data decoder for decoding a main service channel (MSC) of broadcast data provided from the descrambler,

wherein the detector is provided with CIF counter update information from the FIC decoder.