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Content for TR 44.901 Word version: 16.0.0

1… 4…

4 Introduction and Motivation

4.1 Task Description

4.2 GPRS Cell Reselection pre-Release 4

4.3 NACC in GERAN Release 4, Short description

4.3.1 System Information Reception Word‑p. 8

4.3.2 Cell Change Notification (CCN) Mode Procedures

4.4 Extension of NACC in Release 5

4.4.1 General

4.4.2 Short Technical Description Word‑p. 10

5 Requirements

5.1 Architectural Requirements

5.1.1 Case 16 - Intra-UTRAN case Word‑p. 11

5.1.2 Case 4, 8, 12: GERAN → UTRAN Word‑p. 12

5.1.3 Case 13 - 15: UTRAN → GERAN

5.2 Node Requirements

5.2.1 BSC

5.2.2 RNC

5.2.3 SGSN Word‑p. 13

5.2.4 MSC

5.3 Interface Requirements

5.3.1 Gb interface

5.3.2 A interface

5.3.3 Iu interface

5.3.4 Iur-g (Iur) interface Word‑p. 14

5.3.5 Gn interface

5.3.6 Uu interface

5.3.7 Um interface

6 Generic mechanism for exchange of RAN information

6.1 General

6.2 Generic RIM procedures for exchange of RAN information Word‑p. 15

6.2.1 General

6.2.2 RAN Information Request procedure

6.2.3 RAN Information Send procedure

6.2.4 RIM support in CN/RAN nodes. Word‑p. 16

6.3 Messages for RAN information

6.3.1 Message format

6.3.2 Message Type Word‑p. 17

6.3.3 Addressing and routeing

6.3.4 Container Prefix and Container Units Word‑p. 18

6.3.4.1 General

6.3.4.2 Container Prefix

6.3.4.3 Container Unit

7 Exchange of RAN information for external NACC

7.1 Principles for use of the generic mechanism for exchange of RAN information for NACC application

7.1.1 General

7.1.2 Container Unit Disposition for NACC Word‑p. 19

7.1.3 Error Handling

7.1.4 External NACC software support in RAN nodes

8 Interface load

9 Phased approach for the implementation Word‑p. 20

10 Open Issues

11 Specification Impact and Associated Change Requests

11.1 General

11.2 3GPP TS 23.060 GPRS; Stage 2 description

11.3 3GPP TS 44.018 Mobile radio interface layer 3 specification Word‑p. 21

11.4 3GPP TS 44.060 GPRS RLC/MAC Protocol

11.5 3GPP TS 48.018 BSS GPRS Protocol (BSSGP)

11.6 3GPP TS 29.060 GPRS Tunneling Protocol (GTP)

11.7 3GPP TS 25.41x UTRAN Iu interface

$ Change History Word‑p. 22