Communications apparatuses and method for multi-level transmission power control thereof

摘要

A communications apparatus is provided. A radio module transmits first packets before establishing a connection with a peer communications device. A transmission power utilized for transmitting the first packets is adjustable, so that multiple levels of transmission power are utilized for transmitting the first packets.

主权项

1. A communications apparatus, comprising:
a radio module transmitting a plurality of first packets in a Bluetooth network before establishing a connection with a peer communications device, wherein a transmission power utilized for transmitting the first packets in the Bluetooth network is adjustable, so that multiple levels of transmission power are utilized for transmitting the first packets in one procedure before establishing the connection with the peer communications device in the same Bluetooth network, wherein the first packets are transmitted in response to at least a first inquiry command and a second inquiry command; and a power amplifier utilizing a first transmission power to transmit the first packets in response to the first inquiry command and uses a second transmission power to transmit the first packets in response to the second inquiry command, wherein the first packets are identity packets transmitted in compliance with a Bluetooth protocol for establishing an Asynchronous Connection-Oriented Link (ACL) connection, wherein the first transmission power and the second transmission power have different levels, and wherein the radio module uses different levels of transmission power to transmit the first packets in different time slots.