Apparatus, systems and methods for providing enhancements to ATSC networks using synchronous vestigial sideband (VSB) frame slicing

• US 8,675,773 B2
• Filed: 04/03/2009
• Issued: 03/18/2014
• Est. Priority Date: 03/02/2005
• Status: Active Grant

• Current Assignee: Rohde & Schwarz GmbH & Company KG
• Original Assignee: Rohde & Schwarz GmbH & Company KG
• Inventors: Simon, Michael
• Primary Examiner(s): ODOM, CURTIS B
• Application Number:
  US12/418,113
• Publication Number:
  US 20090225872A1
• Time in Patent Office: 1,810 Days
• Field of Search: 375/295, 375/299, 375/324, 375/349
• US Class Current: 375/299
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 27/02 Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation H04L27/32 takes precedence
• CPC Class Codes: H04L 27/04 Modulator circuits; Transmitter circuits
• CPC Class Codes: H04N 21/23412 for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/242 Synchronization processes, e.g. processing of PCR [Program Clock References] arrangements for synchronising broadcast or distribution via plural systems in broadcast distribution systems H04H20/18
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006

Abstract

Systems, methods, apparatus and computer program products are provided for signaling to a receiver an availability of a service and a deterministic mapping of a service content corresponding to the service. A modulator receives a digital signal and generates a data frame from the digital signal, where the data frame is divided into segments, where at least one grouping of the segments contains the service content. The modulator modulates at least one grouping in accordance with the deterministic mapping. A receiving device receives a digital signal containing the availability of a service, the deterministic mapping corresponding to the service, and the service content, and performs an operation on the service content in accordance with the deterministic mapping.

Claims

1. A method for processing a digital signal in a receiver, comprising the steps of:

receiving a digital signal containing an availability of a service, a deterministic mapping corresponding to the service, and a service content, wherein the service content is recognized at one or more known symbol locations within a physical layer based on the deterministic mapping, wherein the deterministic mapping further corresponds at least to a mapping of an interleaver; and

performing an operation on the service content in accordance with the deterministic mapping.

2. The method of claim 1, wherein the operation is error correction decoding a block of packets encoded in a transverse direction with respect to an inner error correction coding performed in a modulator.

3. The method of claim 1, wherein the operation is a power conservation operation.

4. A handheld device configured to use the method according to any one of claims 1-3.

5. A method for processing a digital signal in a receiver, comprising the steps of:

receiving a digital signal containing an availability of a plurality of services;

receiving a plurality of deterministic mappings respectively corresponding to the plurality of services, wherein each of the plurality of services is recognized at one or more known symbol locations within a physical layer based on a corresponding one of the plurality of deterministic mappings, wherein the deterministic mapping further corresponds at least to a mapping of an interleaver; and

switching between the services in accordance with the plurality of deterministic mappings.

6. A receiving device, comprising:

a receiver operable to receive a digital signal containing an availability of a service, a deterministic mapping corresponding to the service, and a service content, wherein the service content is recognized at one or more known symbol locations within a physical layer based on the deterministic mapping, wherein the deterministic mapping further corresponds at least to a mapping of an interleaver; and

a processor operable to perform an operation on the service content in accordance with the deterministic mapping.

7. The receiving device of claim 6, wherein the operation is error correction decoding a block of packets encoded in a transverse direction with respect to an inner error correction coding performed in a modulator.

8. The receiving device of claim 6, wherein the operation is a power conservation operation.

9. A receiving device, comprising:

a receiver operable to receive a digital signal containing an availability of a plurality of services and a plurality of deterministic mappings respectively corresponding to the plurality of services, wherein each of the plurality of services is recognized at one or more known symbol locations within a physical layer based on a corresponding one of the plurality of deterministic mappings, wherein the deterministic mapping further corresponds at least to a mapping of an interleaver; and

a switching unit operable to switch between the services in accordance with the plurality of deterministic mappings.

10. A receiver, comprising:

means for receiving a digital signal containing an availability of a service, a deterministic mapping corresponding to the service, and a service content, wherein the service content is recognized at one or more known symbol locations within a physical layer based on the deterministic mapping, wherein the deterministic mapping further corresponds at least to a mapping of an interleaver; and

means for performing an operation on the service content in accordance with the deterministic mapping.

11. A non-transitory computer readable medium having control logic stored therein for processing a digital signal in a receiver, said control logic comprising:

computer readable program code means for causing the computer to receive a digital signal containing an availability of a service, a deterministic mapping corresponding to the service, and a service content, wherein the service content is recognized at one or more known symbol locations within a physical layer based on the deterministic mapping, wherein the deterministic mapping further corresponds at least to a mapping of an interleaver; and

computer readable program code means for causing the computer to perform an operation on the service content in accordance with the deterministic mapping.

12. The non-transitory computer readable medium of claim 11, wherein the operation is error correction decoding a block of packets encoded in a transverse direction with respect to an inner error correction coding performed in a modulator.

13. The non-transitory computer readable medium of claim 11, wherein the operation is a power conservation operation.