Wireless apparatus, baseband processing apparatus, and communication method

Patent metadata

Field	Value
Publication number	US-9307500-B2
Application number	US-201414321887-A
Country	US
Kind code	B2
Filing date	Jul 2, 2014
Priority date	Mar 30, 2012
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

A wireless apparatus includes a wireless unit to convert a wireless signal received by an antenna into a baseband signal; and a baseband processing apparatus to receive a packet corresponding to the baseband signal via a communication line connected with the wireless unit, to detect an error in a transmission process of the packet via the communication line, to obtain the baseband signal based on packets other than the packet in which the error is detected, to generate transmission power information used for downlink transmission power control based on the obtained baseband signal, to transmit the baseband signal having the generated transmission power information reflected to the wireless unit via the communication line, and to have the wireless unit execute wireless transmission of a wireless signal corresponding to the baseband signal having the transmission power information reflected.

First claim

What is claimed is:

1. A wireless apparatus comprising:
a wireless unit configured to convert a wireless signal received by an antenna into a baseband signal; and
a baseband processing apparatus configured
to receive a packet corresponding to the baseband signal via a communication line connected with the wireless unit,
to detect whether an error occurs in a transmission process of the packet via the communication line, the packet being received from the wireless unit via the communication line,
to obtain the baseband signal based on a plurality of packets other than the packet in which the error is detected without waiting for arrival of retransmission data transmitted in a retransmission control process of the packet in which the error is detected,
to generate transmission power information used for downlink transmission power control, based on the obtained baseband signal,
to transmit the baseband signal including the generated transmission power information to the wireless unit via the communication line, and
to have the wireless unit execute uplink wireless transmission of a wireless signal corresponding to the baseband signal including the transmission power information.

2. The wireless apparatus as claimed in claim 1 , wherein the baseband processing apparatus calculates, for every predetermined number of packets, an average value of reception quality based on the baseband signal corresponding to a plurality of chips included in the packets other than the packet in which the error is detected, and generates the transmission power information based on the average value.

3. The wireless apparatus as claimed in claim 1 , wherein the baseband processing apparatus executes error detection in a DPCH, and outputs a DPCCH including the transmission power information to the wireless unit.

4. The wireless apparatus as claimed in claim 1 , wherein the wireless unit includes a driver configured to generate a DigRF packet of the baseband signal converted from the received wireless signal,
wherein the baseband processing apparatus includes a driver configured to receive the DigRF packet from the driver of the wireless unit via the communication line, and to detect whether the error occurs in the received DigRF packet in the transmission process via the communication line.

5. A baseband processing apparatus having an interface to connect with a wireless unit via a communication line, the wireless unit being configured to convert a wireless signal received by an antenna into a baseband signal, the baseband processing apparatus comprising:
a processor configured
to receive a packet corresponding to the baseband signal via a communication line connected with the wireless unit,
to detect whether an error occurs in a transmission process of the packet via the communication line,
to obtain the baseband signal based on a plurality of packets other than the packet in which the error is detected without waiting for arrival of retransmission data transmitted in a retransmission control process of the packet in which the error is detected,
to generate transmission power information used for downlink transmission power control, based on the obtained baseband signal,
to transmit the baseband signal including the generated transmission power information to the wireless unit via the communication line, and
to have the wireless unit execute uplink wireless transmission of a wireless signal corresponding to the baseband signal including the transmission power information.

6. A communication method executed by a processor, the method comprising:
receiving a packet corresponding to a baseband signal via a communication line connected with a wireless unit;
detecting whether an error occurs in a transmission process of the packet via the communication line;
obtaining the baseband signal based on a plurality of packets other than the packet in which the error is detected without waiting for arrival of retransmission data transmitted in a retransmission control process of the packet in which the error is detected;
generating transmission power information used for downlink transmission power control, based on the obtained baseband signal;
transmitting the baseband signal including the generated transmission power information to the wireless unit via the communication line; and
having the wireless unit execute uplink wireless transmission of a wireless signal corresponding to the baseband signal including the transmission power information.

Assignees

• Fujitsu Ltd

Inventors

• Nibe Keiji

Classifications

• H04W52/24 Primary

  using SIR [Signal to Interference Ratio] or other wireless path parameters · CPC title

• H04W52/20 Primary

  using error rate · CPC title

• H04W52/48

  during retransmission after error or non-acknowledgment · CPC title