Patent ID: 6430413
Filing Date: 2002-08-06
Classification: H04W

Abstract:
A mobile radio receiver for cellular radio telecommunications systems, comprising:a plurality of stationary radio transmitters that communicate with one another, the stationary radio transmitters being arranged in radio cells of the radio telecommunications system for radio-cell-related transmission of radio messages which are included in a multiplex structure having a plurality of structure elements and allow telecommunications connections to be set up between the stationary radio transmitters and a mobile radio receiver each of the stationary radio transmitters connected to a telecommunications network, synchronously or asynchronously with respect to one another, via a switching center; a functional unit having first means for receiving and processing the radio messages, second means for producing and controlling the radio links to the stationary radio transmitters, and third means for detecting and evaluating additional information which indicates radio link quality and is contained in the radio messages; a first radio link, produced and maintained, to a first stationary radio transmitter based on receiving a first radio message which is included in first structure elements of the multiplex structure, this first radio link being used as a telecommunications link; the first means, second means and third means are structured and connected to one another such that in addition to the first radio link, at least one second radio link to at least one second stationary radio transmitter is produced and maintained in the background based on receiving radio messages which are included in second to n-th structure elements of the multiplex structure, which second radio link is useable as a telecommunications link, depending on a comparison between link quality of the first radio link and link quality of the second radio link, a respective link quality being determined from evaluation of respective radio-link-specific additional information, either the first radio link continuing to be used as the telecommunications link, or the second radio link being used as a new telecommunications link; the second means having a number of counting devices corresponding to the number of radio links.