Communication mode control method, mobile communication system, base station control apparatus, base station, and mobile communication terminal

• US 7,684,408 B2
• Filed: 09/30/2003
• Issued: 03/23/2010
• Est. Priority Date: 09/30/2003
• Status: Expired

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Wakabayashi, Hideji
• Primary Examiner(s): MEHRPOUR, NAGHMEH
• Application Number:
  US10/572,599
• Publication Number:
  US 20060256756A1
• Time in Patent Office: 2,366 Days
• Field of Search: 455/500, 455/68, 455/7, 455/417, 455/453, 455/525, 455/524, 455/519, 455/414.1, 370/335, 370/412, 370/395.4
• US Class Current: 370/395.4
• CPC Class Codes: H04B 1/1027 assessing signal quality or detecting noise/interference for the received signal
• CPC Class Codes: H04B 1/406 with more than one transmission mode, e.g. analog and digital modes
• CPC Class Codes: H04W 28/14 using intermediate storage
• CPC Class Codes: H04W 28/16 Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 8/245 from a network towards a terminal

Abstract

A communication mode which should be set to a mobile communication terminal having a function of switching between an autonomous mode and a scheduling mode is determined based on an amount of interference in each of the communication modes in the cell of a base station, and/or communication characteristics of each of the communication modes, and a signal indicating an amount of communication data notified from the mobile communication terminal. The base station then notifies the determined communication mode to the mobile communication terminal.

Claims

1. A communication method comprising:

an interference amount measuring step of measuring an amount of interference about received signals at a base station;

an interference amount notifying step of notifying said amount of interference measured in said measuring step from said base station to an RNC (Radio Network Controller);

a maximum interference amount indicating step of indicating, from said RNC to which said amount of interference is notified to said base station, a maximum amount of interference which must not be exceeded as a result of scheduling;

a buffer state information transmitting step of transmitting terminal buffer state information indicating a state of a terminal buffer, the terminal buffer storing uplink data to be transmitted from a terminal to said base station, from said terminal to said base station;

an uplink radio resource indicating step of performing said scheduling at said base station which receives said terminal buffer state information, and performing indicating of uplink radio resources to said terminal; and

a data transmitting step of transmitting the data from said terminal to said base station according to said indication of the uplink radio resources performed by said base station.