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Scheduling of measurement occasions of a mobile terminal

A terminal, time technology, applied in the direction of advanced technology, access restriction, electrical components, etc., can solve problems such as repeated transmission loss

Active Publication Date: 2013-01-02
NOKIA SOLUTIONS & NETWORKS GESELLSCHAFT MITT BESCHLENKTEL HAFZUNG & KOMPANIE KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can cause repeated transmission losses due to the length of time the UE is not on the scheduled frequency

Method used

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  • Scheduling of measurement occasions of a mobile terminal
  • Scheduling of measurement occasions of a mobile terminal
  • Scheduling of measurement occasions of a mobile terminal

Examples

Experimental program
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Embodiment Construction

[0029] The invention solves the problem of base stations trying to schedule terminals during measurement times by providing the base station with information about the measurement times.

[0030] The technical specification TS25.331 defines the measurement time as follows:

[0031] When in the CELL_FACH state and the variable C_RNTI is non-empty, the UE in FDD mode shall complete the measurements specified in sub-items 8.4.1.6 and 8.4.1.9 during the frame, where the cell system frame number (SFN) satisfies the following equation:

[0032] SFN div N=C_RNTI mod M_REP+n*M_REP

[0033] - where N is the transmission time interval (TTI) in 10 ms frames of the FACH having the largest TTI on the S-CCPCH selected by the UE according to the procedure in sub-item 8.5.19. FACHs carrying only Multimedia Broadcast Multipoint Service (MBMS) logical channels (MBMS Traffic Channel (MTCH), MBMS Point-Multipoint Scheduling Channel (MSCH) or MBMS Point-Multipoint Control Channel (MCCH)) are excl...

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Abstract

In a method of downlink operation in a communication system having a network controller, a base station and a terminal, one communication channel is scheduled by the base station; and one communication channel is scheduled by the network controller. The terminal listens to the channel scheduled by the base station at predetermined times known to the terminal and the network controller. Information is signalled from the network controller to the base station, relating to the predetermined times.

Description

technical field [0001] The invention relates to a method of downlink operation in a communication system. Background technique [0002] In the 6th version of the Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN) Frequency Division Duplex (FDD) system, the terminal can be in one of two states when the offline link is connected, Cell Forwarding Access Channel (Cell_FACH) Or a cell dedicated channel (Cell_DCH). In the Cell_FACH state, there is no active connection to the Node B on the physical layer, no regular power control or uplink. In Cell_DCH state, there is continuous power control and active uplink and downlink. However, it is not desirable to keep the terminal in the Cell_DCH state, as this would exhaust resources, so it is common to transfer the terminal to another state when there is no actual communication. Although doing so is generally inefficient, the Cell_FACH state can be used to transfer small amounts of data. Some d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W72/12H04W88/08H04W88/12H04W48/12H04W52/02H04W92/12
CPCH04W52/02H04W48/12H04W52/0229H04W72/12H04W92/12Y02D30/70
Inventor T·M·查普曼V·布鲁尔T·乌尔里克
Owner NOKIA SOLUTIONS & NETWORKS GESELLSCHAFT MITT BESCHLENKTEL HAFZUNG & KOMPANIE KG
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