Strengthen Quality with Reliable Signal Technology

Introduction

In today’s hyper-connected world, maintaining a stable, clear, and efficient signal is crucial for industries such as telecommunications, broadcasting, and wireless communications. Whether it’s delivering uninterrupted broadcasts, ensuring fast data transmission, or optimizing network performance, reliable signal technology is the backbone of seamless connectivity. Our patented receiving and transmitting apparatus provides an advanced solution to overcome the typical hurdles of signal interference, loss of clarity, and inefficiency, allowing industries to stay connected without compromise.

Challenges in Signal Transmission and Reception

Signal quality can often be compromised by interference, distance, or environmental factors, creating disruptions in service that impact user experience and operational efficiency. For industries like telecommunications, broadcasting, and wireless communications, these disruptions result in reduced customer satisfaction and costly downtime. The demand for faster, more stable, and reliable signals continues to grow as data traffic increases and more devices come online.

These challenges call for cutting-edge technology that not only strengthens signal reception but also optimizes the entire transmission process, ensuring consistent performance across various applications.

Why Choose Reliable Signal Technology?

Our advanced receiving and transmitting apparatus tackles these challenges head-on by significantly improving signal strength and transmission efficiency. This technology ensures clear, uninterrupted communication, minimizing interference and optimizing signal flow even in challenging environments. The result is a more reliable, high-performance system that supports industries reliant on constant data flow and connectivity.

Whether you’re operating in telecommunications, broadcasting, or wireless network systems, this patented technology enhances signal quality and reduces the chance of dropped or unclear transmissions. It’s designed to integrate seamlessly into current systems, allowing companies to upgrade their communication infrastructure with ease and improve overall network performance.

Key Benefits

  • Improved Signal Clarity: Delivers stronger, clearer signals with reduced interference.
  • Wide Range of Applications: Suitable for telecommunications, wireless networks, and broadcasting systems.
  • Reliable Data Flow: Ensures consistent, efficient transmission of signals, reducing service interruptions.
  • Easy Integration: Can be incorporated into existing systems, optimizing performance without major overhauls.

Boost Your Connectivity with Reliable Signal Technology

Licensing this cutting-edge receiving and transmitting apparatus provides industries with the tools they need to strengthen signal quality, enhance transmission reliability, and improve overall network performance. With this advanced technology, you can deliver a superior experience to customers, ensuring seamless, efficient, and reliable communication at all times.

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A partial bit demodulation section that demodulates partial bits among a plurality of bits that form 1 symbol of each modulated signal using a detection method different from likelihood detection, signal point reduction sections that reduce the number of candidate signal points using demodulated partial bits, and a likelihood detection section obtains received digital signals by performing likelihood detection based on the Euclidian distances between the reduced candidate signal points and a reception point, are provided. By this, only some bits which are unlikely to be erroneous are found by the partial bit demodulation section, and other bits can be found by the likelihood detection section, enabling bit error rate performances to be effectively improved with a comparatively small computational complexity.
1. A transmitting apparatus comprising:

a first symbol generation section that generates a first symbol from first transmission data based on a first mapping pattern;
a second symbol generation section that generates a second symbol from second transmission data based on a second mapping pattern;
a first antenna that transmits the first symbol; and
a second antenna that transmits the second symbol in a common frequency band and a common transmission time with the first symbol, wherein:
the first mapping pattern assigns the first transmission data to one of a plurality of first signal points arranged on an IQ plane;
a plurality of bits are allocated to each of the plurality of first signal points;
the plurality of first signal points are divided into four groups by specific two bits of the plurality of bits;
in each of the groups, the plurality of first signal points are arranged in each first distance in a horizontal direction or in a vertical direction;
a minimum distance between signal points in one of the four groups and signal points in the rest of the groups is a second distance which differs from the first distance;
the second mapping pattern assigns the second transmission data to one of a plurality of second signal points arranged on the IQ plane; and
the plurality of second signal points include one or more signal points different from the plurality of first signal points.
2. The transmitting apparatus according to claim 1, wherein a number of first signal points is sixteen or sixty-four.
3. The transmitting apparatus according to claim 1, further comprising an encoding section that collectively encodes transmission bits mapped on a specific signal point in the first mapping pattern.
4. The transmitting apparatus according to claim 3, wherein the encoding section encodes the transmission bits mapped on the specific signal point in the first mapping pattern, with higher error correction capability than other transmission bits.
5. A signal generating apparatus that generates a first symbol to be transmitted by a first antenna and a second symbol to be transmitted by a second antenna in a common transmission time, the apparatus comprising:

a first symbol generation section that outputs the first symbol generated from first transmission data based on a first mapping pattern, to the first antenna and
a second symbol generation section that outputs the second symbol from second transmission data based on a second mapping pattern, to the second antenna, wherein:
the first mapping pattern assigns the first transmission data to one of a plurality of first signal points arranged on an IQ plane;
a plurality of bits are allocated to each of the plurality of first signal points;
the plurality of first signal points are divided into four groups by specific two bits of the plurality of bits;
in each of the groups, the plurality of first signal points are arranged in each first distance in a horizontal direction or in a vertical direction;
a minimum distance between signal points in one of the four groups and signal points in the rest of the groups is a second distance which differs from the first distance;
the second mapping pattern assigns the second transmission data to one of a plurality of second signal points arranged on the IQ plane; and
the plurality of second signal points include one or more signal points different from the plurality of first signal points.
6. The signal generating apparatus according to claim 5, wherein a number of the plurality of first signal points is sixteen or sixty-four.
7. The signal generating apparatus according to claim 5, further comprising an encoding section that collectively encodes transmission bits mapped on a specific signal point in the first mapping pattern.
8. The signal generating apparatus according to claim 6, wherein the encoding section encodes the transmission bits mapped on the specific signal point in the first mapping pattern, with higher error correction capability than other transmission bits.
9. A transmission method comprising:

a first symbol generation step of generating a first symbol from first transmission data based on a first mapping pattern;
a second symbol generation step of generating a second symbol from second transmission data based on a second mapping pattern; and
a transmission step in which a first antenna transmits the first symbol and a second antenna transmits the second symbol in a common frequency band and a common transmission time with the first symbol, wherein:
the first mapping pattern assigns the first transmission data to one of a plurality of first signal points arranged on an IQ plane;
a plurality of bits are allocated to each of the plurality of first signal points;
the plurality of first signal points are divided into four groups by specific two bits of the plurality of bits;
in each of the groups, the plurality of first signal points are arranged in each first distance in a horizontal direction or in a vertical direction;
a minimum distance between signal points in one of the four groups and signal points in the rest of the groups is a second distance which differs from the first distance;
the second mapping pattern assigns the second transmission data to one of a plurality of second signal points arranged on the IQ plane; and
the plurality of second signal points include one or more signal points different from the plurality of first signal points.
10. The transmission method according to claim 9, wherein a number of the plurality of first signal points is sixteen or sixty-four.
11. The transmission method according to claim 9, further comprising an encoding step of collectively encoding transmission bits mapped on a specific signal point in the first mapping pattern.
12. The transmission method according to claim 11, wherein the encoding step encodes the transmission bits mapped on the specific signal point in the first mapping pattern, with higher error correction capability than other transmission bits.
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Title

Receiving apparatus and transmitting apparatus

Inventor(s)

Yutaka Murakami, Kiyotaka Kobayashi, Masayuki Orihashi, Akihiko Matsuoka

Assignee(s)

Panasonic Intellectual Property Corp of America

Patent #

7920647

Patent Date

April 5, 2011

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