Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Radio communication apparatus and method

a radio communication and apparatus technology, applied in the field of radio communication apparatus and methods, can solve the problems of insufficient capability of a programmable device such as a dsp for high-speed processing of broadband radio communication signals, and insufficient disclosure of how to realize such devices under various conditions, so as to achieve accurate and efficient resource management

Inactive Publication Date: 2008-10-23
MUKAI MANABU +4
View PDF10 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention provides a radio communication apparatus and method that can efficiently manage resources and perform digital signal processing for multiple communication systems and application services. The apparatus includes a transceiver, executing unit, processor, and communication control processing. The method involves executing the first part of digital signal processing, controlling the connection between the apparatus and a communication system, and processing at least one application program. The second part of digital signal processing is executed and controls the first part, resulting in greater processing power. Overall, the invention improves the performance and efficiency of radio communication."

Problems solved by technology

However, how to realize such devices under various conditions has not been sufficiently disclosed.
However, the capability of a programmable device such as a DSP may be insufficient for high-speed processing of broadband radio communication signals.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Radio communication apparatus and method
  • Radio communication apparatus and method
  • Radio communication apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0024]FIG. 1 shows the configuration of a radio communication apparatus according to a first embodiment of the invention. This radio communication apparatus receives, via an antenna 1, an RF (Radio Frequency) signal transmitted from a base station (not shown), and transmits an RF signal to the base station. The receiving signal from the antenna 1 is converted into a digital receiving IF (Intermediate Frequency) signal by a radio transmitting / receiving unit 2, and supplied to a signal processing circuit 3. The digital transmitting IF signal generated by the signal processing circuit 3 is converted into a transmitting RF signal by the radio transmitting / receiving unit 2, and supplied to the antenna 1.

[0025]The signal processing circuit 3 is a programmable hardware circuit, such as a PLD (Programmable Logic Device) or FPGA (Field Programmable Gate Array), and executes part of the digital signal processing that may be executed when the radio transmitting / receiving unit 2 transmits or re...

second embodiment

[0036]FIG. 2 shows the configuration of a radio communication apparatus according to a second embodiment of the invention as a modification of the first embodiment. In FIG. 2, elements similar to those of FIG. 1 are denoted by corresponding reference numerals. In the second embodiment, an instruction memory 12A and data memory 13A, which form a main memory for the first processor 11, are constructed as external memories detachable from the radio communication apparatus. The size of the LSI employed in the radio communication apparatus can be reduced to reduce the size of the entire device and the power consumption of the device, by using external memories to form the main memory of the first processor 11.

[0037]Specifically, the instruction memory 12A as an external memory is formed of, for example, a flash memory (electrically rewritable nonvolatile memory). The data memory 13A as an external memory is formed of, for example, a DRAM (Dynamic Access Memory). On the other hand, an ins...

third embodiment

[0042]FIG. 3 shows the configuration of a radio communication apparatus according to a third embodiment of the invention. The third embodiment employs first, second and third processors 11, 21 and 31. Further, there are provided an instruction memory 12, data memory 13 and cache memory 14, which form a main memory for the first processor 11, an instruction memory 22 and data memory 23, which form a main memory for the second processor 21, and an instruction memory 32 and data memory 33, which form a main memory for the third processor 31. The instruction memory 22 and data memory 23 for the second processor 21 may be formed of external memories, as in the second embodiment. The third processor 31 formed of, for example, a CPU or DSP, and instruction memory 32 and data memory 33 belonging to the processor 31 are connected to the bus 4A, to which the signal processing circuit 3 is connected. The second processor 21 formed of, for example, a CPU, and instruction memory 22 and data memo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A radio communication apparatus compatible with a plurality of communication systems and application services comprises a radio transmitting / receiving unit for transmitting and receiving a radio signal, signal processing circuit for executing part of digital signal processing which may be executed when a radio signal is transmitted or received, first processors connected to the signal processing circuit for at least executing communication control related to connection between the radio communication apparatus and the communication systems, and an application program related to the application services, and second processors connected to the signal processing circuit for at least executing another part of the digital signal processing, and control of the signal processing circuit, the amount of processing of the second processors being greater than the amount of processing of the first processors, the processing concerning the executing unit.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. application Ser. No. 10 / 392,866, filed Mar. 21, 2003, and is based upon and claims the benefit of priority from the prior Japanese Patent Applications No. 2002-081990, filed Mar. 22, 2002; and No. 2002-191407, filed Jun. 28, 2002, the entire contents of each of which is incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a radio communication apparatus and method which utilize a so-called software radio technique and are compatible with a plurality of communication systems or applications due to changing programs.[0004]2. Description of the Related Art[0005]Software radio devices have been proposed as one of the means for realizing a multi-mode terminal. In such devices, at least part of the signal processing necessary for signal transmission or reception is executed by software, using a programmable device such as a digital s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): H04M1/00H04W8/24
CPCH04W8/245
Inventor MUKAI, MANABUTOMIZAWA, TAKESHITAKEDA, DAISUKEWAKUTSU, TAKASHISERIZAWA, MUTSUMU
Owner MUKAI MANABU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com