公开(公告)号：DE69331438D1

公开(公告)日：2002-02-14

申请号：DE69331438

申请日：1993-10-12

Applicant: ERICSSON TELEFON AB L M

Inventor： DAHLIN ERIK ,  MUELLER GERHARD

IPC: H04B7/26 ,  H04W72/14 ,  H04B7/24 ,  H04W74/04 ,  H04W74/08 ,  H04Q7/28

Abstract: A method for detecting a flag in connection with random access in a time divided mobile radio system, for instance, an FDMA/TDMA system, which includes digital traffic channels and control channels which are organized so that four traffic channels (TC) and two control channels (CC) are included in a TDMA-frame. A base station (BS) transmits continuously flags (B/I, R/N, R/F) in the time slots (1, 4) of the control channels. According to the invention, different numbers of binary values are assigned to the different states of one flag. A state (B) in a flag (B/I) which is particularly senstitive to errors in the transmission is given a greater number of binary values than the other state (I), whereby a secure detection of the flag is achieved.

公开(公告)号：DE60002479D1

公开(公告)日：2003-06-05

申请号：DE60002479

申请日：2000-08-18

Applicant: ERICSSON TELEFON AB L M

Inventor： PETERSSON JUSTUS ,  NAESMAN ANDERS ,  MUELLER GERHARD

IPC: H04B7/005 ,  H04W36/06 ,  H04W36/12 ,  H04W36/30 ,  H04W52/40 ,  H04W52/44 ,  H04Q7/38

Abstract: In a mobile communication system (T1) a time interval selection means (TIFM) in a network control means (RNC) determines a time interval and sends an indication about this time interval to a subscriber station (MS) in a time interval indication signal. A time interval signal determining means (TIFDM) in the subscriber station (MS) detects the time interval and an IF measurement means (IFMM) carries out inter-frequency/inter-system measurements in the detected time interval specified by the network control means (RNC). In this time interval the temporary reduction of the quality of service QoS on the communication connection (CC) is planed by the network control means (RNC). However, independent as to whether a delay-sensitive or loss-sensitive data transmission is carried out, the network control means (RNC) can make provisions in order to compensate the temporary reduction of the quality of service. Such procedure is superior to performing IF measurements in an idle time interval of a compressed time slot in which a temporary degradation of the quality of service must always be accepted due to a compressed mode of operation.

公开(公告)号：DE60002479T2

公开(公告)日：2004-03-18

申请号：DE60002479

申请日：2000-08-18

Applicant: ERICSSON TELEFON AB L M

Inventor： PETERSSON JUSTUS ,  NAESMAN ANDERS ,  MUELLER GERHARD

IPC: H04B7/005 ,  H04W36/06 ,  H04W36/12 ,  H04W36/30 ,  H04W52/40 ,  H04W52/44 ,  H04Q7/38

Abstract: In a mobile communication system (T1) a time interval selection means (TIFM) in a network control means (RNC) determines a time interval and sends an indication about this time interval to a subscriber station (MS) in a time interval indication signal. A time interval signal determining means (TIFDM) in the subscriber station (MS) detects the time interval and an IF measurement means (IFMM) carries out inter-frequency/inter-system measurements in the detected time interval specified by the network control means (RNC). In this time interval the temporary reduction of the quality of service QoS on the communication connection (CC) is planed by the network control means (RNC). However, independent as to whether a delay-sensitive or loss-sensitive data transmission is carried out, the network control means (RNC) can make provisions in order to compensate the temporary reduction of the quality of service. Such procedure is superior to performing IF measurements in an idle time interval of a compressed time slot in which a temporary degradation of the quality of service must always be accepted due to a compressed mode of operation.