Communication apparatus and automatic gain control method

• US 9,125,150 B2
• Filed: 09/16/2013
• Issued: 09/01/2015
• Est. Priority Date: 03/02/2009
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Takano, Hiroaki, Kunihiro, Takushi
• Primary Examiner(s): WILSON, ROBERT W
• Application Number:
  US14/027,614
• Publication Number:
  US 20140016632A1
• Time in Patent Office: 715 Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/088 using beam selection
• CPC Class Codes: H04W 56/00 Synchronisation arrangements
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams

Abstract

Provided is a communication apparatus including a first communication unit for performing communication using a carrier having a first frequency, a second communication unit having a plurality of antennas, for performing communication using a carrier having a second frequency, a first communication processing unit for processing a signal received by the first communication unit and causing to transmit a signal, and a second communication processing unit for processing a signal received by the second communication unit and causing to transmit a signal. The second communication processing unit includes a synchronization unit for specifying a start position of a second transmission request in which a plurality of transmission beam patterns are set in one packet based on information indicating reception initiation, and an automatic gain control unit for performing automatic gain control based on a first automatic gain control setting value.

Claims

1. An electronic device comprising:

a plurality of antennas; and

circuitry configured to;

control performing wireless communication using a first frequency;

control performing wireless communication using a second frequency, the second frequency higher than the first frequency;

identify a start position of a second received signal including a beam training field based on a synchronization information, the synchronization information based on a first received signal, wherein the first received signal is received via the first frequency and the second received signal is received via the second frequency; and

conduct gain control for beam patterns indicated by the beam training field included in the identified second received signal via the plurality of antennas.

3. The electronic device of claim 1, wherein the second signal is received with a predetermined no signal period.

4. The electronic device of claim 3, wherein the beam training field includes a plurality of beam patterns, and the predetermined no signal period is set between the plurality of beam patterns.

2. A communication apparatus comprising:

a plurality of antennas; and

circuitry configured to;

control performing wireless communication using a first frequency via a first antenna of the plurality of antennas;

control performing wireless communication using a second frequency via at least a second antenna of the plurality of antennas, the second frequency higher than the first frequency;

identify a start position of a second received signal including a beam training field based on a synchronization information, the synchronization information based on a first received signal, wherein the first received signal is received via the first frequency and the second received signal is received via the second frequency; and

conduct gain control for beam patterns indicated by the beam training field included in the identified second received signal.

5. The communication apparatus of claim 2, wherein the second signal is received with a predetermined no signal period.

6. The communication apparatus of claim 5, wherein the beam training field includes a plurality of beam patterns, and the predetermined no signal period is set between the plurality of beam patterns.