Radio transmitting/receiving circuit, wireless communication apparatus, and radio transmitting/receiving method

• US 8,594,160 B2
• Filed: 03/26/2010
• Issued: 11/26/2013
• Est. Priority Date: 04/02/2009
• Status: Expired due to Fees

• Current Assignee: Sovereign Peak Ventures, LLC (Dominion Harbor Enterprises, LLC)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Yoshikawa, Hiroyuki
• Primary Examiner(s): Washburn, Daniel
• Assistant Examiner(s): Tadese, Berhanu
• Application Number:
  US13/262,063
• Publication Number:
  US 20120020391A1
• Time in Patent Office: 1,341 Days
• Field of Search: 375/219, 375/295, 375/316, 375/371, 455/552, 455/73, 455/88
• US Class Current: 375/219
• CPC Class Codes: H04W 52/0203 in the radio access network or backbone network of wireless communication networks
• CPC Class Codes: H04W 52/0251 using monitoring of local events, e.g. events related to user activity
• CPC Class Codes: H04W 52/029 reducing the clock frequency of the controller
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A radio transmitting/receiving circuit, a wireless communication apparatus and a radio transmitting/receiving method, wherein low power consumption can be achieved without complicating software. In a control unit of the radio transmitting/receiving circuit, according to a communication system applied to a radio transmitting/receiving unit, a clock control unit selects a clock frequency; a program decoder adjusts information included in a transmission/reception program and related to the execution timing of the transmission/reception program for the radio transmitting/receiving unit; and a timing control unit controls the execution timing on the basis of the adjusted information related to the execution timing. The information related to the execution timing includes a bit sequence indicating an ON/OFF timing for the radio transmitting/receiving unit in accordance with a first communication system, and the program decoder bit-shifts the bit sequence if a second communication system is applied to the radio transmitting/receiving unit.

Claims

1. A radio transmitting/receiving circuit that is formed to be able to transmit and receive in a plurality of communication schemes, and transmits and receives a radio signal using one transmitting/receiving program that is common among the plurality of communication schemes, the circuit comprising:

a radio transmitting/receiving section; and

a control section comprising;

a clock control section that switches a clock frequency according to a communication scheme applied to the radio transmitting/receiving section;

an adjustment section that adjusts information, the information defining executing timing at which an execution of the transmitting/receiving program of the radio transmitting/receiving section starts and the information being included in the transmitting/receiving program, according to the communication scheme applied to the radio transmitting/receiving section; and

a timing control section that controls executing timing of the transmitting/receiving program based on the switched clock frequency and the information about the adjusted executing timing.

2. The radio transmitting/receiving circuit according to claim 1, wherein:

the information defining the executing timing includes a first bit stream showing on timing of the radio transmitting/receiving section according to a first communication scheme; and

when a second communication scheme different from the first communication scheme is applied to the radio transmitting/receiving section, the adjustment section adjusts the executing timing of transmitting/receiving program by using a second bit stream that is generated by bit-shifting the first bit stream for M bits, M being a positive integer.

3. The radio transmitting/receiving circuit according to claim 2, wherein, when the second communication scheme is applied to the radio transmitting/receiving section, the adjustment section adjusts the executing timing of transmitting/receiving program by the second bit stream and a third bit stream acquired by adding the second bit stream generated by bit-shifting the first bit stream for N bits, N being a different positive integer from M.

4. The radio transmitting/receiving circuit according to claim 2, wherein, when the second communication scheme is applied to the radio transmitting/receiving section, the adjustment section generates a plurality of bit streams generated by bit-shifting the first bit stream for a plurality of bits, and adjusts the executing timing of transmitting/receiving program by using a bit stream acquired by adding the plurality of bit streams.

5. The radio transmitting/receiving circuit according to claim 2, wherein, when a third communication scheme different from the first communication scheme and the second communication scheme is applied, the adjustment section bit-shifts the first bit stream by a shift value that is different from when the second communication scheme is applied.

6. A radio communication apparatus comprising:

a radio transmitting/receiving circuit according to claim 1; and

a baseband process circuit that outputs a transmitting baseband signal to the radio transmitting/receiving circuit and receives a receiving baseband signal from the radio transmitting/receiving circuit.

7. A radio transmitting/receiving method to transmit and receive a radio signal using one transmitting/receiving program that is common among a plurality of communication schemes, the method comprising:

switching a clock frequency according to a communication scheme applied to a radio transmitting/receiving section;

adjusting information, the information defining executing timing at which an execution of the transmitting/receiving program of the radio transmitting/receiving section starts and the information being included in the transmitting/receiving program, according to the communication scheme applied to the radio transmitting/receiving section; and

controlling the executing timing of the transmitting/receiving program based on the switched clock frequency and the information about the adjusted executing timing.

8. The radio transmitting/receiving method according to claim 7, wherein:

the information defining the executing timing includes a first bit stream showing on timing of the radio transmitting/receiving section according to a first communication scheme;

when a second communication scheme different from a first communication scheme is applied to the radio transmitting/receiving section, the executing timing is adjusted by using a second bit stream generated by bit-shifting the first bit stream for M bits, M being a positive integer.

9. The radio transmitting/receiving method according to claim 8, wherein, when the second communication scheme is applied to the radio transmitting/receiving section, the executing timing is adjusted by using the second bit stream and a third bit stream acquired by adding the second bit stream generated by bit-shifting the first bit stream for N bits, N being a different positive integer from M.

10. The radio transmitting/receiving method according to claim 8, wherein, when the second communication scheme is applied to the radio transmitting/receiving section, the adjustment of executing timing generates a plurality of bit streams generated by bit-shifting the first bit stream for a plurality of bits, and adjusts the executing timing of transmitting/receiving program by using a bit stream acquired by adding a plurality of bit streams.

11. The radio transmitting/receiving method according to claim 8, wherein, when a third communication scheme different from the first communication scheme and the second communication scheme is applied, the adjustment of executing timing bit-shifts the first bit stream by a shift value that is different from when the second communication scheme is applied.