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01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.10.5.7 Use of reason code "Setup again after n frames" | The release reason "set up again" is used to instruct the PT to attempt to establish a ULE packet mode connection at some future time. It could be used if the FT is too busy to deal with the original packet mode connection or if it cannot respond to the PT immediately (a delay in the application layer). The delay befor... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.10.5.8 Use of reason code "No such connection / virtual circuit" | The release reason "No such connection / virtual circuit" is used to indicate that the PT is known at the RFP (PP registered), however the NWK layer PVC is not in active state and the DLC link and MAC MBC are not created. Therefore, expedited operations cannot be used yet and any attempt to setup a bearer with expedite... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.11.1.1 General | The D-field mapping for the full slot structure (physical packet P32), as defined by EN 300 175-3 [3], clause 6.2.1.1.2 shall be supported. ETSI ETSI TS 102 939-1 V1.1.1 (2013-04) 119 The B-field mapping for the full slot structure (physical packet P32), as defined by EN 300 175-3 [3], clause 6.2.1.3.1.2 shall be suppo... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.11.1.2 Use of full slot in C/O bearers | Full slot shall be used in C/O bearers, in all cases except in the cases listed in clause 10.11.2.2, when short slot may also be used. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.11.1.3 Use of full slot in C/L dummy bearers | Full slot shall be used in the dummy C/L bearers in all cases. 10.11.2 Short Slot |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.11.2.1 General | The D-field mapping for the short slot structure (physical packet P00), as defined by EN 300 175-3 [3], clause 6.2.1.1.2 shall be supported in both PT and FT, at least in receiving mode. Use (transmission) of the slot is optional at both sides. The B-field mapping for the full slot structure (physical packet P00), as d... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.11.2.2 Use of short slot in C/O bearers | In order to further save energy, it is allowed to transmit as short slots frames that do not carry any B-field (BA code = no B-field) in certain cases. The use of short slots is optional at sending side (transmitter choice). However its understanding by the receiving side is mandatory. The rules given in EN 300 175-3 [... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.12.1.1 Unilateral jump | FT and PT shall support unilateral data jump procedure according to EN 300 175-3 [3], clause 10.8.2.5.2. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.12.1.2 Bearer reset | FT and PT shall support bearer reset according to EN 300 175-3 [3], clause 10.8.2.5.3. ETSI ETSI TS 102 939-1 V1.1.1 (2013-04) 120 10.12.2 Lifetime management with TWO separate maximum MAC packet lifetimes The FT and PT shall operate with TWO separate maximum MAC packet lifetimes, differentiating the maximum lifetime a... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.13.1.1 GFA channel transmission | The transmitter side of FT and PT shall support the GFA channel transmission as defined in EN 300 175-3 [3], clause 5.3.1.3 over the following MT messages: • ready for release with GFA transmission • expedited_release with GFA transmission • Null or GFA channel transmission |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.13.1.2 GFA channel reception | The receiver side of FT and PT shall support the of GFA channel reception, as defined in EN 300 175-3 [3], clause 5.3.1.3 and shall understand the frame format FU10d when transmitted over the GFA channel. The receiver side (FT or PT) shall be able to understand GFA channel messages when transmitted over the following M... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.14.2.1 Priority schema of the CF channel | This clause defines the relative priority of the CF channel over U-plane (I-channels) and other B-field control channels in ULE connections. In ULE, it is possible to select the priority level of CF channel by means of the NWK layer IE <Connection Attributes> (see EN 300 175-5 [5], clause 7.7.11). The setting is done b... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.15.2.1 General | The procedure shall be performed as defined in EN 300 444 (GAP) [9], clause 10.14 and EN 300 175-7 [7], clause 6.4.6. Figure 54 summarizes the sequence and timing of MAC encryption control procedures. Start-Cfm Start-Req From the beginning of that half-frame, where the first Start-Cfm- message is expected, all B-field-... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.15.2.2 MT message | The provisions of EN 300 444 (GAP) [9], clause 10.14.1 shall apply. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.15.2.3 Procedure for enabling encryption | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.15.2.3.1 Prerequisite | In order to execute the MAC procedure for enabling encryption, it is a prerequisite that the NWK layer procedure Cipher-switching has been previously successfully executed with the Y/N value in <<Cipher-info>> indicating Cipher activation ("1"). Any of the following NWK layer procedures qualifies for the prerequisite: ... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.15.2.3.2 Procedure | The connection should be in active state (it should be resumed if suspended). The PT-MAC shall start the encryption switching process on one bearer as described in EN 300 175-7 [7], clause 6.4.6.3. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.15.2.4 Procedure for disabling encryption | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.15.2.4.1 Prerequisite | In order to execute the MAC procedure for disabling encryption, it is a prerequisite that the NWK layer procedure Cipher-switching has been previously successfully executed with the Y/N value in <<Cipher-info>> indicating Cipher deactivation ("0"). Any of the following NWK layer procedures qualifies for the prerequisit... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 10.15.2.4.2 Procedure | The connection should be in active state (it should be resumed if suspended). The PT-MAC shall start the encryption switching process on one bearer as described in EN 300 175-7 [7], clause 6.4.6.4. 10.15.3 Handover encryption process In ULE part 1, the handover encryption process is only used for circuit mode connectio... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11 DLC layer procedures | 11.1 LU14 Enhanced Frame RELay service with CCM (EFREL- CCM) The procedure shall be performed as defined in EN 300 175-4 [4], clause 11.16. The following text together with the associated clauses defines the mandatory requirements with regard to the present document. The packet received from the U-plane application lay... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.2 LU10 Enhanced Frame RELay service (EFREL) | The procedure shall be performed as defined in EN 300 175-4 [4], clause 11.12. The following text together with the associated clauses defines the mandatory requirements with regard to the present document. The SDU shall be segmented into fixed length segments, where the segment length shall depend on the PDU structure... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.2.1 Window size | The window size can be negotiated in the range of 8 to 128 by the NWK-layer. The default value for the window size is 16. This default value will be used in absence or failure of NWK-Layer negotiation. Any ULE device shall support at least the following values for the window size: 8, 16 and 32. The window size in use a... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.2.2 SDU transmission and delivery mode | The standard delivery mode shall be used in all cases. ETSI ETSI TS 102 939-1 V1.1.1 (2013-04) 127 The option of transporting parts of several SDUs in one PDU shall not be used. Only one segment of one SDU shall be carried in each PDU. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.3 FU10 framing (FU10a, FU10d) | The procedure shall be performed as defined in EN 300 175-4 [4], clause 12.11. The following text together with the associated clauses defines the mandatory requirements with regard to the present document. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.3.1 FU10a | FU10a frames as defined in see EN 300 175-4 [4], clause 12.11 shall be used for the forward path of unidirectional links. Bi-directional links may be implemented using two unidirectional links for each direction. FU10a is the standard frame for carrying data in ULE. Modulus shall be 512 for the send sequence number. Th... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.3.2 FU10d | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.3.2.1 General | FU10d frames as defined in see EN 300 175-4 [4], clause 12.11, with total length shall be used for the backward control path. Both, the shortened and the full format shall be supported: • Shortened format shall be used when the frame is transported over GFA channel, messages MT "Expedited Release" and "Expedited Ready ... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.3.2.2 Transport of FU10d frames over GFA channel | The transport of FU10d frame over channel GFA shall be supported in all cases: • Shortened format shall be used when the frame is transported over messages MT "Expedited Release" and "Expedited Ready for Release". • Full format shall be used the frame is transported over message MT "Null or GFA packet". |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.3.2.3 Insertion of FU10d frames in FU10a frames of the opposite link | The FT and PT shall support the transport of FU10d frames by insertion in the frame FU10a of the opposite link using the procedure described in EN 300 175-4 [4], clause 12.11.2.3. ETSI ETSI TS 102 939-1 V1.1.1 (2013-04) 128 The sending side can take dynamically the decision on how to transport the FU10d frames accordin... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4 Class A operation | The class A link operation can be either PT or FT initiated. To simplify the description this clause considers on the PT initiated procedures; for the FT initiated procedures, "PT" shall be replaced with "FT" and vice versa. This is valid for the entire clause 11.4 and the associated clauses. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1 Class A link establishment | The procedure shall be performed as defined in EN 300 175-4 [4], clause 9.2.3.1. The following text together with the associated clauses define the mandatory requirements with regard to the present document. If, class B acknowledged transfer is requested but not supported (B acknowledged transfer is not required to be ... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.1 Associated procedures | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.1.1 Timer P<DL.07> management | <DL.07>: class A establishment timer; value: refer to EN 300 175-4 [4], annex A; start: a Class A link establishment I_frame is transmitted; stop: on receipt of: a Class A errorless RR_response with the New Link Flag (NLF) bit set to "1"; a DL_RELEASE-req primitive indicating "abnormal"; a MAC_DIS-ind primitive. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.1.2 Re-transmission counter management | Refer to EN 300 175-4 [4], clauses 9.2.3.1 and 9.2.3.6. Each LAPC entity shall maintain an internal Re-transmission count variable determining the maximum number of re-transmissions of an I_frame. The default value shall be 3. For Class A operations the Re-transmission counter shall be reset any time a new I_frame has ... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.1.3 Multiple frame operation variables management | Refer to EN 300 175-4 [4], clause 7.5.2. For the DLC layer acknowledged transfer to be performed the V(S), V(A), and V(R) operation variables together with their appropriate management shall be supported. The allowed values of all state variables for a given class of operation shall always be defined by the modulus ope... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.1.4 Lower Layer Management Entity (LLME) establishment of a MAC connection | The procedure shall be performed as defined in EN 300 175-4 [4], clause 10.2 and EN 300 175-3 [3], clause 8.1.1. The following text together with the associated clauses define the mandatory requirements with regard to the present document. For a link to be established a suitable MAC connection is needed. If such one do... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.2 Exceptional cases | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.2.1 Timer P<DL.07> expiry | If a RR response is received with the NLF bit set to "0" or containing errors the LAPC entity shall discard it. If the peer finds errors in the I_frame, response shall not be generated. In both cases timer P<DL.07> shall expire. An action shall be taken according to EN 300 175-4 [4], clause 9.2.3.1. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.2.2 Receipt of a request for link release | If DL_RELEASE-req primitive is received timer P<DL.07> shall be stopped. Class A link release procedure shall be performed (see clause 9.3). |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.1.2.3 Receipt of an indication for a connection release | Timer P<DL.07> shall be stopped, all outstanding data shall be discarded, and, the NWK layer shall be informed for the MAC failure by DL_RELEASE-ind primitive. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2 Class A Acknowledged Information transfer | The procedure shall be performed as defined in EN 300 175-4 [4], clauses 9.2.3.2 to 9.2.3.6. The following text together with the associated clauses define the mandatory requirements with regard to the present document. The following cases, depending on the frame which confirms the reception of the frame-request, shall... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.1 Acknowledgement with an I_frame | PT FT I_frame V(S) V(R) V(A) V(S) V(R) V(A) X Y X X+1 Y X I_frame X+1 Y+1 X+1 Y X Y Y X+1 Y Y+1 X+1 Y NOTE 1: During the calculation of the variable's values the assumptions have been made that the I_frame sent by PT is not used for acknowledgement of previous received I_frames and, both frames are not re-transmission.... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.2 Acknowledgement with a RR_frame | PT FT I_frame V(S) V(R) V(A) V(S) V(R) V(A) X Y X X+1 Y X RR_frame X+1 Y X+1 Y X Y Y X+1 Y NOTE 1: During the calculation of the variable's values an assumption has been made that the I_frame sent by PT is not used for acknowledgement of previous received I_frames and is not a re-transmission. NOTE 2: A Class A acknowl... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.3 Class A acknowledged information transfer with segment reassemble | If procedure 11.4.5 "Handling of NWK layer messages longer than 63 octets" is not supported the following provisions shall apply: If an implementation supporting longer messages wants to access an implementation which does not support segmentation, the last shall act as follows: • acknowledge the receipt of each error ... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.4 Associated procedures | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.4.1 Timer <DL.04> management | DL.04>: re transmission timer; value: refer to EN 300 175-4 [4], annex A; start: a I_frame is transmitted; stop: on receipt of: an acknowledgement for that frame; a DL_RELEASE-req primitive indicating "abnormal"; a MAC_DIS-ind primitive. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.4.2 Re-transmission counter management | Refer to clause 11.4.1.1.2. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.4.3 Multiple frame operation variables management | Refer to clause 11.4.1.1.3. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.5 Exceptional cases | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.5.1 Timer <DL.04> expiry | Refer to EN 300 175-4 [4], clause 9.2.3.6. An errored or erroneous I-frame shall be discarded and therefore shall not generate peer response. An errored or erroneous frame-acknowledgement shall be discarded and timer <DL.04> shall not be stopped. PT FT I_frame V(S) V(R) V(A) V(S) V(R) V(A) X Y X X+1 Y X I_frame Y X Y D... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.5.2 Receipt of a request for link release | On receipt of a DL_RELEASE-req after an I-frame has been transmitted timer <DL.04> shall be stopped and class A link release procedure (see clause 9.3) shall be performed. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.5.3 Receipt of an indication for a connection release | On receipt of an indication from the MAC layer for a release meaning either a bearer release started by the MAC layer or a bearer release resulting from a link release initiated by the peer, the timer <DL.04> shall be stopped and class A Link release procedure (see clause 9.3) shall be performed. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.2.5.4 DLC wants to make a connection handover | See class A basic connection handover procedure given in clause 9.7. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.3 Class A link release | The procedure shall be performed as defined in EN 300 175-4 [4], clauses 9.2.3.7, 9.2.7.1.2, 10.2.2, and 10.4.1, EN 300 175-3 [3], clause 8.1.6, and EN 300 175-5 [5], clause 17.9. The following text together with the associated clauses define the mandatory requirements with regard to the present document. The procedure... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.3.1 Associated procedures | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.3.1.1 LLME U-plane release | The procedure shall be performed as defined in EN 300 175-4 [4], clause 10.4.2. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.3.1.2 LLME release a MAC connection | The procedure shall be performed as defined in of EN 300 175-4 [4], clause 10.2 and EN 300 175-3 [3], clause 8.1.6. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.4 Class A link re-establishment | The procedure shall be performed as defined in of EN 300 175-4 [4], clause 9.2.3.8 and EN 300 175-5 [5], clause 17.8. The following text together with the associated clauses define the mandatory requirements with regard to the present document. A class A link may be re-established at any time using the procedure for cl... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.4.5 Handling of NWK layer messages longer than 63 octets | Both PT and FT shall be able to handle NWK layer messages longer than 63 octets. Longer than 63 octets messages shall be segmented at DLC sending side and re-assembled in DLC receiving side as specified in EN 300 175-4 [4], clause 7.7.2. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.5 U-plane frame transmission procedures | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.5.1 DLC U-plane transmission Class 1 | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.5.1.1 General | The general provisions given in EN 300 175-4 [4], clause 14.3.1 and clause 14.3.3 shall be followed. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.5.1.2 Sending side procedure | The procedure shall be performed as defined in EN 300 175-4 [4], clause 14.3.3.1. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.5.1.3 Receiving side procedure | The procedure shall be performed as defined in EN 300 175-4 [4], clause 14.3.3.2 with the following specific provisions: • The value of timer L(R) shall be set as equal to the MAC packet lifetime. • Timer L(R) shall be understood as running with the absolute TDMA frame counter. This timer shall not be stopped if the co... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.6 Lc frame delimiting and sequencing service | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.6.1 CS channel fragmentation and recombination | The procedure shall be performed as defined in EN 300 175-4 [4], clauses 6.1.2, 6.1.3, 6.1.4 and 6.1.4.2. The following text together with the associated clauses defines the mandatory requirements with regard to the present document. The complete frame shall be fragmented into 5 octet fragments. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.6.2 CF channel fragmentation and recombination | The CF channel shall be operated according to the procedures defined in EN 300 175-4 [4], clauses 6.1.2, 6.1.3, 6.1.4 and 6.1.4.1. The following text together with the associated clauses defines the mandatory requirements with regard to the present document. The complete frame shall be fragmented into 8 octet fragments... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.6.3 Selection of logical channels (CS and CF) | The selection of the CF instead of the CS channel for Lc operation, shall be done according to the conditions defined in EN 300 175-4 [4], clause 10.2.5. If both sides have indicated that they support CF channel (see 10.3.2.2.1 for the FT and 12.3 for the PT) all C-plane transmission shall take place on the CF channel.... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.7 Broadcast Lb service | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.7.1 Normal broadcast | The procedure shall be performed as defined in EN 300 175-4 [4], clauses 6.2.1, 8.3.3.1, 9.4.1.1 and 9.4.1.2 and EN 300 175-3 [3], clause 8.2.1. The following text together with the associated clauses defines the mandatory requirements with regard to the present document. Short frame format (frame length = 3) and full ... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.9 Encryption switching | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.9.1 MAC layer encryption switching | This procedure refers to the activation or deactivation of the MAC layer encryption (see for instance EN 300 175-3 [3], clause 6.2.3). For activation of the CCM encryption, see clause 11.9.2. The procedure shall be performed as defined in EN 300 175-4 [4], clause 10.6, EN 300 175-7 [7], clauses 6.5.3 and 6.4.6 and EN 3... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.9.1.1 Associated procedure | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.9.1.1.1 Providing Encryption key to the MAC layer | On receipt of the DCK in a DL-ENC_KEY-req primitive the DLC shall transmit it to the MAC layer. A record shall be kept for the active (the one used for the current encryption) DCK for use in case of connection handover. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.9.1.2 Exceptional cases | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.9.1.2.1 Encryption fails | An encryption attempt which fails means the desired "Crypted" mode is not achieved. If the MAC fails to switch from clear to encrypted mode the connection is released and the DLC layer is informed by a MAC_DIS-ind primitive. At the peer side this indication shall arrive as a result of the connection release. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.9.1.2.2 Connection handover of ciphered connections | Connection handover is for further study and not supported by this revision of the present document. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 11.9.2 CCM encryption switching | When a DLC LU14 instance (DLC layer U-plane service with CCM) is created, a valid derived cipher key stored under the cipher key nr. associated to CCM should exist. Such derived cipher key has had to be created using a MM process: • The key shall be automatically retrieved from NWK layer MM and transferred to the CCM e... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12 NWK layer procedures | |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1 Simplified NWK layer control procedures for ULE phase 1 | In ULE phase 1, a simplified CC control model is used. Such model is based on the concept of a PVC (Permanent Virtual Circuit) controllable by means of Service Change operations. 12.1.1 General pre-requisites The CC transaction value number 5, FT initiated, is reserved and shall not be used by any other service. This t... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.2 Creation of the ULE PVC and states | When a ULE phase 1 PP is registered in a phase 1 RFP, a CC transaction with transaction value 5 (FT initiated), is automatically created without any CC operation. Such CC transaction may only have two states: • Connected and NWK suspended • Connected and NWK resumed NOTE: The states "NWK suspended" and "NWK resumed" re... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.2.1 State diagram | Figure 62 shows the two possible states of the transaction and the possible operations. ETSI ETSI TS 102 939-1 V1.1.1 (2013-04) 142 Figure 62: States and allowed transitions of the CC transaction The ULE transaction only supports the CC operation "Service Change" by means of the message{CC Service Change} and its two p... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.2.2 Creation of the transaction | The transaction is always created (at registration) with the state NWK suspended. Transition between states is done by means of Service change CC operations as described in clause 12.1.3. When the transaction is created, the default parameters given in clause 12.1.3.8 shall apply. NOTE: The normal state of the transact... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3 Allowed CC Operations over the ULE transaction | The ULE transaction only supports the CC operation "Service Change" by means of the message {CC Service Change} and its two possible replies {CC-Service Accept} and {CC-Service Reject}. Any other CC message over this transaction shall be ignored. Only the following three operations are possible: • Service Change "NWK r... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.1 Service Change "NWK resume" | This operation changes the state of the CC transaction from "NWK suspended" to "NWK resumed". This operation should always be invoked for any ULE activation (since the ULE CC transaction is always created in suspended state). |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.1.1 Pre-requisite: | The following pre-requisite applies if the required DLC service is LU14: • A suitable (unused) Derived Cipher key for CCM shall exist before the completion of the CC Service Change operation (i.e. before the responding side sends the {CC-Service-Accept} response). Such Derived Cipher Key will be the key for LU14 and is... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.1.2 Coding of the operation messages | This operation is coded as follows: • Initiating message {CC Service Change} • Possible replies {CC-Service Accept} and {CC-Service Reject} • Transaction value : 5, FT originated • The IEs << SERVICE-CHANGE-INFO >> and << CONNECTION-IDENTITY >> shall be included and coded as follows Table 53: Mandatory IEs and their va... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.1.3 Actions after a successfully CC Service Change "NWK resume" operation | 12.1.3.1.2.1 DLC layer After a successfully CC Service Change "NWK resume" operation, a DLC U-plane link (LU) shall be created at both peers. The LU shall be LU13 or LU14 according to the parameter currently set for the transaction. Since the default parameter is LU14 (see clause 12.1.3.5) the LU shall be LU14 unless t... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.2 Service Change "NWK suspend" | This operation changes the state of the CC transaction from "NWK resumed" to "NWK suspended". This operation may be invoked only if needed. NOTE: A possible reason for the use of the "NWK suspend" operation is the need to reset the DLC link. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.2.1 Pre-requisite: | Not applicable. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.2.2 Coding of the operation messages | This operation is coded as follows: • Initiating message {CC Service Change} • Possible replies {CC-Service Accept} and {CC-Service Reject} • Transaction value : 5, FT originated • The IEs << SERVICE-CHANGE-INFO >> shall be included and coded as follows ETSI ETSI TS 102 939-1 V1.1.1 (2013-04) 145 Table 54: Mandatory IE... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.2.3 Actions after a successful CC Service Change "NWK suspend" operation | 12.1.3.2.3.1 DLC layer DLC LU entity is released. 12.1.3.2.3.2 MAC layer Case A: If the CC message was carried by a different MBC to the one associated to the transaction. • The CC operation is completed and the MAC MBC associated to the transaction (with ECN = 7) is released at both peers without any further signallin... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.3 Service Change "other" | At any state, it is possible to perform service change operations that are neither suspend nor resume. They are used to configure parameters of the PVC. The transaction state remains unchanged. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.3.1 Pre-requisite: | Not applicable. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.3.2 Coding of the operation messages | This operation is coded as follows: • Initiating message {CC Service Change} ETSI ETSI TS 102 939-1 V1.1.1 (2013-04) 146 • Possible replies {CC-Service Accept} and {CC-Service Reject}. • Transaction value : 5, FT originated • The IEs << SERVICE-CHANGE-INFO >> shall be included and coded as follows Table 55: Mandatory I... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.4 Allowed parameters in any service change operation | The following parameters may be inserted in any service change operation. In all cases they will be transmitted in addition to the mandatory IEs. All IEs shall always be transmitted over the air in the standard DECT order, as indicated in EN 300 175-5 [5], clause 6.3.1. For FT initiated operations, the PT shall repeat ... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.5 Default parameters | The ULE PVC transactions are created with the following default parameters, which shall apply unless changed by any Service Change operation. Table 57: Default parameters for ULE PVC transactions Information element Field within the information element Default values Normative action/comment << ULE-MAC- CONFIGURATION-I... |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.6 Initiating part of the Service Change operations | Service change operations may be initiated by any of the peers. |
01d4cead4603302c51d644c860b8516f | 102 939-1 | 12.1.3.6.1 Rule for handling collisions | In case of collision of PT initiated and FT initiated operations, the FT shall reject the colliding PT initiated operation. The release reason IE with the code '0C'H (collision) shall be inserted in the {Service Reject} message. The PT shall continue processing the FT initiated operation. |
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