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Fast Dormancy

Date post: 13-May-2017
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L/O/G/O www.themegallery.com Fast Dormancy & Enhanced Fast Dormancy
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Page 1: Fast Dormancy

L/O/G/Owww.themegallery.com

Fast Dormancy &

Enhanced Fast Dormancy

Page 2: Fast Dormancy

Tổng quan

Fast Dormancy

Enhanced Fast Dormancy

Các parameters liên quan 4

1

2

3

Contents

Page 3: Fast Dormancy

Tổng quan

Mục đích1

Giảm tiêu tốn pin, kéo dài thời gian sống của Pin UEs

Page 4: Fast Dormancy

Click to add Title

Click to add Title

Click to add Title

Fast Dormancy

Page 5: Fast Dormancy

Fast Dormancy

UEs chuẩn 3GPP R8 hỗ trợ chức năng FD

Khi UEs hoàn thành truyền dữ liệu PS, nó sẽ gửi SCRI đến RNC

RNC release RRC connection của UE và chuyển UE đến trạng thái tiết kiệm năng lượng

Page 6: Fast Dormancy

T323 <> 03

Timer T323: được send trên SIB1 hoặc UTRAN Mobility Infomation đến UE để điều kiển FD

T323 có giá trị INVALID1

T323 = 02

Fast Dormancy

Page 7: Fast Dormancy

Các trạng thái của UEs Fast Dormancy

Nhận biết UE Fast Dormancy

Overview

Enhanced Fast Dormancy

Page 8: Fast Dormancy

Overview

Sự khác nhau giữa FD và EFD

Vấn đề overflow SPU trong RNC

Page 9: Fast Dormancy

Compare FD & EFD

Page 10: Fast Dormancy

Identifying Fast Dormancy UEs

1

2

R8 fast dormancy

   Pre-R8 fast dormancy

Two types of the fast dormancy mechanism are implemented in UEs. These UEs are referred to as fast dormancy UEs in this document.

Page 11: Fast Dormancy

The procedure of identifying fast dormancy UE

1.     If the RNC supports the function of the enhanced fast dormancy, the RNC performs the next step. Otherwise, the process ends.

2.     If the RNC supports the function of TAC match, the following UEs are identified as fast dormancy UE.

3.     If the RNC does not support the function of TAC match, the UEs complying with 3GPP Release 5 or later releases are identified as fast dormancy UE

Page 12: Fast Dormancy

State Transition of Fast Dormancy UEs

Page 13: Fast Dormancy

State transition of a fast dormancy UE

1.    From CELL_DCH or CELL_FACH to CELL_PCH

2.    From CELL_PCH to IDLE

3.    From CELL_PCH to CELL_FACH

4.    From CELL_PCH to CELL_DCH

Page 14: Fast Dormancy

State transition of a fast dormancy UEWhen the fast dormancy UE is in the CELL_FACH state, the state transition of the UE is performed as follows: If the UE reports event 4A to the RNC, the RNC instructs the UE to enter the CELL_DCH state. If the UE reports event 4B to the RNC, the RNC instructs the UE to enter the CELL_PCH state.

Page 15: Fast Dormancy

Parameters

Mức RNC

Mức Cell

Timer

FAST_DORMANCY_ADCTRLFastDormancy

FAST_DORMANCY_SWITCH FD_TAC_MATCH_SWITCH

PsInactTmrForFstDrmDch PsInactTmrForFstDrmFach PsInactTmrForPreFstDrm

Page 16: Fast Dormancy

L/O/G/Owww.themegallery.com

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