Wireless terminal, wireless controller, core-network device, and wireless base station

• US 8,483,695 B2
• Filed: 01/16/2009
• Issued: 07/09/2013
• Est. Priority Date: 05/12/2008
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Nakahara, Tohru
• Primary Examiner(s): Patel, Ajit
• Assistant Examiner(s): HEIBER, SHANTELL LAKETA
• Application Number:
  US12/355,726
• Publication Number:
  US 20090280820A1
• Time in Patent Office: 1,635 Days
• Field of Search: None
• US Class Current: 455/450
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

In a wireless terminal, a receiver receives information being broadcasted from a wireless base station as a femtocell and indicating that the wireless base station is a femtocell, and a transmitter transmits to the wireless base station a signal of a first request to secure one or more wireless resources when the receiver receives the information before the wireless terminal receives a call and a request to initiate a call. When the wireless terminal receives a second request to initiate a call, the wireless terminal performs operations for establishing a communication path by using the one or more wireless resources secured in response to the first request, where the operations do not include an operation for securing the one or more wireless resources. Therefore, it is possible to reduce the time taken to start communication after the user of the wireless terminal requests the start of the communication.

Claims

1. A wireless terminal comprising:

a receiver which receives information being broadcasted from a wireless base station;

a transmitter which changes determination of when to transmit to the wireless base station a request to secure one or more wireless resources depending on the information received by the receiver, wherein the request is to be transmitted regardless of calls from or to the wireless terminal when the received information indicates that the wireless base station is of a femtocell, while the request is to be transmitted in response to a call from or to the wireless base station when the received information indicates that the wireless base station is of a cell other than femtocell; and

a wireless resource receiver which receives and maintains the one or more wireless resources from the wireless base station at least until the wireless terminal initiates a call when the received information indicates that the wireless base station is of a femtocell;

wherein, when the wireless terminal is operated to initiate a call, the wireless terminal performs operations for establishing a communication path by using the one or more wireless resources that have been received and maintained, where the operations do not include an operation for securing the one or more wireless resources.