Enhance Connectivity with Advanced Communication

Introduction

In today’s interconnected world, reliable communication systems are the backbone of every industry, from telecommunications and wireless communications to networking and consumer electronics. With data transfer demands growing exponentially, industries are constantly seeking ways to enhance connectivity, optimize transmission quality, and reduce interference. Our patented communication apparatus and method offer a state-of-the-art solution that meets the rising demand for faster, more efficient data transmission across multiple sectors.

The Need for Reliable Communication Systems

Modern communication systems are under immense pressure to deliver faster data speeds, handle larger bandwidths, and ensure uninterrupted connectivity. As more devices come online and data traffic grows, current communication methods can struggle to meet these demands. Issues such as signal interference, reduced quality during transmission, and inefficient use of bandwidth can lead to poor user experiences and operational inefficiencies.

Industries need advanced communication technologies that can handle this growing demand while providing high-quality, reliable transmissions.

Why Choose Advanced Communication Technology?

Our patented communication apparatus and method offer a comprehensive solution to these challenges. This technology is designed to improve both the quality and efficiency of communication systems, ensuring that signals are transmitted with minimal interference and maximum reliability. By optimizing data flow and transmission pathways, it allows industries to enhance the speed and clarity of their communications, even in high-demand environments.

Whether it’s used in telecommunications networks, wireless communication devices, or electronics systems, this technology provides a powerful, flexible tool for improving connectivity. It’s adaptable to a wide range of applications and can be easily integrated into existing communication infrastructures. With this solution, businesses can reduce delays, improve signal strength, and provide a more seamless user experience.

Key Benefits

Improved Signal Quality: Enhances data transmission for clearer, more reliable communication.
Reduced Interference: Minimizes disruptions and ensures consistent performance.
Broad Applications: Ideal for telecommunications, wireless networks, and electronic systems.
Faster Data Transmission: Optimizes communication methods for improved speed and efficiency.

Boost Performance with Advanced Communication Technology

Licensing this communication apparatus and method offers companies a chance to significantly improve their communication networks. Whether in telecommunications, networking, or wireless industries, this advanced technology ensures that your systems are operating at peak efficiency, providing better connectivity and a more seamless user experience across the board.

Please see terms and conditions

Abstract
Claims

Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.

1. A transmitting apparatus comprising:

a frame configuration section that is configured to select a mapping pattern of a predefined modulation operation from among a first mapping operation having a first pattern and a second mapping operation, which is different from the first mapping operation and which comprises one or more second patterns, and to output a frame configuration signal including information related to the selected mapping pattern;

a modulation section that is configured to output at least one of a plurality of modulated signals, which are mapped using the first mapping operation, as a first modulated signal based solely on the first mapping operation, to re-map the rest of the plurality of modulated signals other than the first modulated signal, which is mapped using the first mapping operation, using the selected mapping pattern included in the frame configuration signal to produce a re-mapped signal, and to output the re-mapped signal as a second modulated signal; and

a plurality of antennas that are configured to transmit the first modulated signal and the second modulated signal, respectively, at the same time period and in the same frequency band, wherein;

the first mapping operation and the second mapping operation are operations for mapping a signal point corresponding to a bit set, which consists of a plurality of bits, on an IQ plane;

a first phase formed between an I axis of the IQ plane and a line drawn between an origin of the IQ plane and a first signal point on the IQ plane, to which a first bit set is mapped using the first mapping operation, is different from a second phase formed between the I axis of the IQ plane and a line drawn between the origin of the IQ plane and a second signal point on the IQ plane, to which the first bit set is mapped using the second mapping operation;

a distance between the first signal point and the origin is the same as a distance between the second signal point and the origin; and

the first bit set is selected from all combinations possible with the plurality of bits.

2. The transmitting apparatus according to claim 1, wherein the modulation section is further configured to output a signal indicative of the selected mapping pattern used for the second modulated signal, and the plurality of antennas are further configured to transmit the signal indicative of the selected mapping pattern used for the second modulated signal.

3. The transmitting apparatus according to claim 1, wherein the first modulated signal and the second modulated signal are orthogonal frequency-division multiplexing (OFDM) signals.

4. A transmission method comprising:

(a) selecting a mapping pattern of a predefined modulation method from among a first mapping method having a first pattern and a second mapping method, which is different from the first mapping method and which comprises one or more second patterns, and outputting a frame configuration signal including information related to the selected mapping pattern;

(b) outputting at least one of a plurality of modulated signals, which are mapped using the first mapping method, as a first modulated signal based solely on the first mapping method, re-mapping the rest of the plurality of modulated signals other than the first modulated signal, which is mapped using the first mapping method, using the selected mapping pattern included in the frame configuration signal to produce a re-mapped signal, and outputting the re-mapped signal as a second modulated signal; and

(c) transmitting the first modulated signal and the second modulated signal from the plurality of antennas, respectively, at the same time period and in the same frequency band, wherein:

the first mapping method and the second mapping method are methods for mapping a signal point corresponding to a bit set, which consists of a plurality of bits, on an IQ plane;

a first phase formed between an I axis of the IQ plane and a line drawn between an origin of the IQ plane and a first signal point on the IQ plane, to which a first bit set is mapped using the first mapping method, is different from a second phase formed between the I axis of the IQ plane and a line drawn between the origin of the IQ plane and a second signal point on the IQ plane, to which the first bit set is mapped using the second mapping method;

a distance between the first signal point and the origin is the same as a distance between the second signal point and the origin; and

the first bit set is selected from all combinations possible with the plurality of bits.

5. The transmission method according to claim 4, wherein step (b) further comprises outputting a signal indicative of the selected mapping pattern used for the second modulated signal, and step (c) further comprises transmitting the signal indicative of the selected mapping pattern used for the second modulated signal.

6. The transmitting method according to claim 4, wherein the first modulated signal and the second modulated signal are orthogonal frequency-division multiplexing (OFDM) signals.

Title

Communication apparatus and communication method

Inventor(s)

Yutaka Murakami, Kiyotaka Kobayashi, Masayuki Orihashi, Akihiko Matsuoka

Assignee(s)

Panasonic Intellectual Property Corp of America

Patent #

7773694

Patent Date

August 10, 2010