Wireless base station and a wireless phone
View Patent ↗On receiving a link channel assignment request or a link channel reassignment request from a mobile station, a wireless base station specifies a unique word (UW) that is not assigned to any other mobile stations, and sends a channel assignment notification containing the specified UW to the requesting mobile station. The base station also sends the specified UW to its user processing unit, which extracts a signal sent from the requesting mobile station and generates a signal to be sent to this mobile station. The base station then defines a reference signal based on the sent UW, and adjusts each weight vector by using the defined reference signal and a signal estimated to have been sent from the requesting mobile station, thereby directing the directivity pattern to the requesting mobile station.
1. A wireless phone that wirelessly communicates with a wireless base station capable of transmitting a different word for synchronization to each of a plurality of mobile phones with which the wireless base station wirelessly communicates by using space division multiplexing, comprising:
receiving means for receiving the word for synchronization sent from a wireless base station; and
sending means for sending the word for synchronization to the wireless base station, the word for synchronization being sent preceding a main data that is a content of communication,
wherein the wireless base station extracts communication data relating to a wireless phone with which the wireless base station is communicating, by:
(a) defining a reference signal containing a word for synchronization that is sent to the wireless phone with which the wireless base station is communicating;
(b) obtaining a second signal that is estimated to be a signal relating to the communication data by forming a directivity pattern, using a plurality of first signals that are seguentially received via an antenna;
(c) sequentially calculating based on the reference signal and the second signal;
(d) adiusting the second signal by seguentially adiusting the directivity pattern by reflecting a result of the calculation; and
(e) regarding the adjusted second signal as communication data sent from the wireless phone with which the wireless base station is communicating.
2. A wireless phone, comprising:
receiving means for receiving a word for synchronization sent from a wireless base station; and
sending means for sending the word for synchronization to the wireless base station, the word for synchronization being sent preceding a main data that is a content of communication, wherein
the wireless base station extracts communication data relating to a wireless phone with which the wireless base station is communicating, by:
(a) defining a reference signal containing a word for synchronization that is sent to the wireless phone with which the wireless base station is communicating;
(b) obtaining a second signal that is estimated to be a signal relating to the communication data by forming a directivity pattern, using a plurality of first signals that are sequentially received via an antenna;
(c) sequentially calculating based on the reference signal and the second signal;
(d) adjusting the second signal by sequentially adjusting the directivity pattern by reflecting a result of the calculation; and
(e) regarding the adjusted second signal as communication data sent from the wireless phone with which the wireless base station is communicating.