Wireless communication device and wireless communication method
First Claim
1. A wireless communication device for transmitting and receiving packets, the wireless communication device comprising:
- a first transmitting unit configured to periodically or occasionally transmit a scheduling table, in which a transmission order is written by at least one of a plurality of wireless communication devices, to a wireless base station;
a recognizing and retaining unit configured to recognize and retain a scheduling table received when the wireless communication device is connected to the wireless base station and is not communicating with another wireless communication device;
a second transmitting unit configured to additionally write information of the wireless communication device to the scheduling table which is retained by the recognizing and retaining unit at the beginning of communication and to transmit the additionally-written scheduling table at least once;
an updating unit configured to update the retained scheduling table, when an update time of another scheduling table received by the wireless base station in communication is later than an update time of the retained scheduling table and another transmission order received by the wireless base station is different from the transmission order in the retained scheduling table; and
a third transmitting unit configured to communicate during a transmission priority period set in accordance with the scheduling table updated by the updating unit to transmit the packets with a high priority.
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Accused Products
Abstract
An object of the present invention is to realize a distributed autonomous transmission scheduling by using a terminal without the need to observe packets in relation to communication of other wireless terminals in a cell, such as VoIP, in which a plurality of wireless terminals that periodically transmit packets exist, thereby allowing intermittent reception during the packet observation and enabling to control power consumption of the wireless terminal as well as to reduce the load to thereby improve the communication quality. To attain the object, a VoIP terminal 100 recognizes and retains a scheduling table received by a wireless terminal that is connected to a wireless base station and that is not communicating with other wireless terminals, additionally writes terminal information of the terminal in the scheduling table at the start of communication of the terminal, and broadcasts the scheduling table.
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Citations
6 Claims
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1. A wireless communication device for transmitting and receiving packets, the wireless communication device comprising:
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a first transmitting unit configured to periodically or occasionally transmit a scheduling table, in which a transmission order is written by at least one of a plurality of wireless communication devices, to a wireless base station; a recognizing and retaining unit configured to recognize and retain a scheduling table received when the wireless communication device is connected to the wireless base station and is not communicating with another wireless communication device; a second transmitting unit configured to additionally write information of the wireless communication device to the scheduling table which is retained by the recognizing and retaining unit at the beginning of communication and to transmit the additionally-written scheduling table at least once; an updating unit configured to update the retained scheduling table, when an update time of another scheduling table received by the wireless base station in communication is later than an update time of the retained scheduling table and another transmission order received by the wireless base station is different from the transmission order in the retained scheduling table; and a third transmitting unit configured to communicate during a transmission priority period set in accordance with the scheduling table updated by the updating unit to transmit the packets with a high priority. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless communication method for transmitting and receiving packets, the wireless communication method comprising the steps of:
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periodically or occasionally transmitting a scheduling table, in which a transmission order is written by at least one of a plurality of wireless communication devices, to a wireless base station; recognizing and retaining a scheduling table received when the wireless communication device is connected to the wireless base station and is not communicating with another wireless communication device; additionally writing information of the wireless communication device to the scheduling table which is retained by the recognizing and retaining step at the beginning of communication, and transmitting the additionally-written scheduling table at least once; updating the retained scheduling table, when an update time of another scheduling table received by the wireless base station in communication is later than an update time of the retained scheduling table and another transmission order received by the wireless base station is different from the transmission order in the retained scheduling table; and communicating during a transmission priority period set in accordance with the scheduling table updated at the updating step to transmit the packets with a high priority.
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Specification