Title:
無線通信システム
Document Type and Number:
Japanese Patent JP4372549
Kind Code:
B2
Abstract:
A radio communication system includes a communication channel for the transmission of data packets from a primary station to a secondary station. In operation, on detection of a data packet, the secondary station transmits an acknowledgement signal to the primary station to indicate the status of the received data packet, and resets a timer. While the timer is running, the secondary station modifies a characteristic of uplink transmissions. In one embodiment the modification includes the secondary station transmitting a negative acknowledgement for each time at which a data packet could have been transmitted if no indication of a data packet is received. In another embodiment the modification includes the secondary station altering a parameter relating to transmission of channel quality information to the primary station.
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Inventors:
Timothy Ye Moulsley
Matthew P. Baker
Matthew P. Baker
Application Number:
JP2003544931A
Publication Date:
November 25, 2009
Filing Date:
October 02, 2002
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H04L1/16; H04B1/00; H04B7/00; H04B7/005; H04B7/01; H04B7/015; H04B7/24; H04B15/00; H04L1/18; H04W52/32; H04W52/48
Domestic Patent References:
| JP2001217771A |
Other References:
Philips,Improvement in power requirements for ACK/NACK signalling,R1-01-1199,2001年11月25日,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_22/Docs/Zips/R1-01-1199.zip
Philips,Power requirements for uplink ACK/NACK signalling,R1-01-1058,2001年11月 7日,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_AH/HSDPA_Ad_Hoc/Docs/Zips/R1-01-1058.zip
Motorola,ACK/NACK COntrol Channel Reliability for High Speed Downlink Packet Access(HSDPA),R1-01-0744,2001年 6月,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_AH/Rel-5_Ad_Hoc/Docs/R1-01-0744.zip
Philips,Power requirements for uplink ACK/NACK signalling,R1-01-1058,2001年11月 7日,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_AH/HSDPA_Ad_Hoc/Docs/Zips/R1-01-1058.zip
Motorola,ACK/NACK COntrol Channel Reliability for High Speed Downlink Packet Access(HSDPA),R1-01-0744,2001年 6月,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_AH/Rel-5_Ad_Hoc/Docs/R1-01-0744.zip
Attorney, Agent or Firm:
Susumu Tsugaru
High Bridge Rie
Fueda Shusen
Akihiko Miyazaki
High Bridge Rie
Fueda Shusen
Akihiko Miyazaki