# US 11,451,355 B2 · Reception apparatus, reception method, transmission apparatus, and transmission method

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- Number: US 11,451,355 B2
- Document ID: US11451355B2
- Status: Granted
- Kind: B2
- Application number: 17/040,504
- Filed: 2019-03-15
- Published: 2021-01-28
- Granted: 2022-09-20
- Earliest claimed: 2018-03-30
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Lachlan Bruce Michael
- Web page: https://patentgrep.com/patent/US11451355B2

## CPC

- H04H 20/42: Arrangements for resource management
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04H 20/28: Arrangements for simultaneous broadcast of plural pieces of information
- H04H 20/72: of terrestrial networks
- H04H 60/07: characterised by processes or methods for the generation
- H04Q 11/04: for time-division multiplexing {(H04Q11/0001 takes precedence)}
- H04N 21/643: Communication protocols {(network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP], H04L65/65)}
- H04H: BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04Q: SELECTING (switches, relays, selectors H01H; wireless communication networks H04W)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

The present technology relates to a reception apparatus, a reception method, a transmission apparatus, and a transmission method that enable efficient data transmission. When a reception apparatus including a processing unit that, when a transmission signal including transmission data is received, processes the transmission signal including a pilot signal on which layered division multiplexing (LDM) has been performed, and demodulates a part of the transmission data included in a second layer which is different from a first layer including the pilot signal, it is possible to efficiently perform data transmission using the pilot signal. The present technology can be applied to, for example, a broadcasting system compatible with a broadcasting method such as ISDB-T, ATSC, and the like.

## Claims

### Claim 1

A reception apparatus, comprising:
a processing unit configured to:
process, when a transmission signal including transmission data is received, the transmission signal including a pilot signal on which layered division multiplexing (LDM) has been performed, and
demodulate a part of the transmission data included in a second layer which is different from a first layer including the pilot signal, wherein
a core layer of the LDM includes the pilot signal,
an enhanced layer of the LDM includes a part of the transmission data,
the transmission signal includes a broadcast signal multiplexed by frequency division multiplexing (FDM),
a layer divided in a frequency direction includes a first tier and a second tier on which different modulation methods have been performed, and
the pilot signal is included in one tier of the first tier and the second tier on which a more robust modulation method has been performed.

### Claim 2 (depends on 1)

The reception apparatus according to claim 1, wherein
the broadcast signal includes a signal compatible with Integrated Services Digital Broadcasting-Terrestrial (ISDB-T).

### Claim 3

A reception apparatus, comprising:
a processing unit configured to:
process, when a transmission signal including transmission data is received, the transmission signal including a pilot signal on which LDM has been performed, and
demodulate a part of the transmission data included in a second layer which is different from a first layer including the pilot signal, wherein
a core layer of the LDM includes the pilot signal,
an enhanced layer of the LDM includes a part of the transmission data,
the transmission signal includes a broadcast signal multiplexed by time division multiplexing (TDM),
a layer divided in a time direction includes a first tier and a second tier on which different modulation methods have been performed, and
the pilot signal is included in one tier of the first tier and the second tier on which a more robust modulation method has been performed.

### Claim 4 (depends on 3)

The reception apparatus according to claim 3, wherein
the broadcast signal includes a signal compatible with Advanced Television Systems Committee (ATSC).

### Claim 5

A reception method of a reception apparatus, wherein
the reception apparatus, when a transmission signal including transmission data is received, processes the transmission signal including a pilot signal on which LDM has been performed, and demodulates a part of the transmission data included in a second layer which is different from a first layer including the pilot signal,
a core layer of the LDM includes the pilot signal,
an enhanced layer of the LDM includes a part of the transmission data,
the transmission signal includes a broadcast signal multiplexed by FDM,
a layer divided in a frequency direction includes a first tier and a second tier on which different modulation methods have been performed, and
the pilot signal is included in one tier of the first tier and the second tier on which a more robust modulation method has been performed.

### Claim 6

A transmission apparatus, comprising:
a processing unit configured to:
process, when a transmission signal including transmission data is transmitted, the transmission signal including a pilot signal on which LDM has been performed, and
modulate a part of the transmission data included in a second layer which is different from a first layer including the pilot signal, wherein
a core layer of the LDM includes the pilot signal,
an enhanced layer of the LDM includes a part of the transmission data,
the transmission signal includes a broadcast signal multiplexed by FDM,
a layer divided in a frequency direction includes a first tier and a second tier on which different modulation methods have been performed, and
the pilot signal is included in one tier of the first tier and the second tier on which a more robust modulation method has been performed.

### Claim 7 (depends on 6)

The transmission apparatus according to claim 6, wherein
the broadcast signal includes a signal compatible with ISDB-T.

### Claim 8

A transmission apparatus, comprising:
a processing unit configured to:
when a transmission signal including transmission data is transmitted, the transmission signal including a pilot signal on which LDM has been performed, and
modulate a part of the transmission data included in a second layer which is different from a first layer including the pilot signal, wherein
a core layer of the LDM includes the pilot signal,
an enhanced layer of the LDM includes a part of the transmission data,
the transmission signal includes a broadcast signal multiplexed by TDM,
a layer divided in a time direction includes a first tier and a second tier on which different modulation methods have been performed, and
the pilot signal is included in one tier of the first tier and the second tier on which a more robust modulation method has been performed.

### Claim 9 (depends on 8)

The transmission apparatus according to claim 8, wherein
the broadcast signal includes a signal compatible with ATSC.

### Claim 10

A transmission method of a transmission apparatus, wherein
the transmission apparatus, when a transmission signal including transmission data is transmitted, processes the transmission signal including a pilot signal on which LDM has been performed, and modulates a part of the transmission data included in a second layer which is different from a first layer including the pilot signal,
a core layer of the LDM includes the pilot signal,
an enhanced layer of the LDM includes a part of the transmission data,
the transmission signal includes a broadcast signal multiplexed by FDM,
a layer divided in a frequency direction includes a first tier and a second tier on which different modulation methods have been performed, and
the pilot signal is included in one tier of the first tier and the second tier on which a more robust modulation method has been performed.