Communication terminal apparatus

• US 6,807,425 B2
• Filed: 12/13/2002
• Issued: 10/19/2004
• Est. Priority Date: 06/23/2000
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Miya, Kazuyuki, Kanemoto, Hideki
• Primary Examiner(s): TRAN, CONGVAN
• Application Number:
  US10/318,193
• Publication Number:
  US 20030083074A1
• Time in Patent Office: 676 Days
• Field of Search: 455/403, 455/407, 455/408, 455/414.1, 455/420, 455/422.1, 455/423, 455/464, 455/450, 455/509, 455/510, 455/515, 455/452.2, 370/320, 370/321, 370/330, 370/337, 370/287
• US Class Current: 455/450
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A determination section 301 determines whether or not a DSCH has been assigned to the communication terminal apparatus in question, and outputs a signal indicating the result of that determination to a transmission controller 102, and the transmission controller 102 changes as appropriate the degree of frequency of transmission of a signal containing shared channel information according to the result of determination by the determination section 301. That is to say, the transmission controller 102 outputs a signal containing shared channel information to a modulator 103 with a high degree of frequency when the DSCH has been assigned to that terminal, and outputs a signal containing shared channel information to the modulator 103 with a low degree of frequency when the DSCH has not been assigned to that terminal.

Claims

1. A communication terminal apparatus comprising:

a transmitter that transmits shared channel information necessary for assignment of a shared channel shared with other communication terminal apparatuses,

a determiner that determines whether or not said shared channel is assigned to the communication terminal apparatus, and

a controller that controls a frequency of transmission of the shared channel information from said transmitter to be a predetermined frequency when said shared channel is assigned to said communication terminal apparatus and to be a frequency lower than the predetermined frequency when said shared channel is not assigned to said communication terminal apparatus.

2. A communication terminal apparatus comprising:

a transmitter that transmits shared channel information necessary for assignment of a shared channel shared with other communication terminal apparatuses,

a determiner that determines whether or not said shared channel is assigned to the communication terminal apparatus, and

a controller that controls a frequency of transmission of the shared channel information from said transmitter to be higher when said shared channel is assigned to the communication terminal apparatus than when said shared channel is not assigned to the communication terminal apparatus.