Content for  TS 27.007  Word version:  18.5.0

Execution command causes the TA to return one or more lines of information text <report>, determined by the MT manufacturer, which should offer the user of the TA an extended report of the reason for

• the failure in the last unsuccessful call setup (originating or answering) or in-call modification;
• the last call release;
• the last unsuccessful GPRS attach or unsuccessful PDP context activation;
• the last GPRS detach or PDP context deactivation.

Typically, the text will consist of a single line containing the cause information given by the network in textual format.

<report>

Optional.

Set command controls whether or not the extended format of incoming call indication or GPRS network request for PDP context activation or notification for VBS/VGCS calls is used. When enabled, an incoming call is indicated to the TE with unsolicited result code +CRING: <type> instead of the normal RING. Read command returns the current value of <mode>. Test command returns values supported as a compound value.

<mode> <type>: <priority> <subaddr> <satype> <ccidx> <PDP_type>, <PDP_addr> and <APN> <L2P> <GCA> <GId> <ackflag>

Mandatory when data or fax circuit mode calls are implemented, or for an MT supporting AT commands only and eMLPP or VGCS or VBS is implemented.

Execution command returns information about HSCSD features (refer TS 22.034) supported by the MT/TA. Refer to clause 9.2 for possible <err> values. The return information is only applicable in GERAN.

<mclass> <maxRx> <maxTx> <sum> <codings>

Mandatory when HSCSD implemented. This command is only applicable to GERAN UEs.

Set command controls parameters for transparent HSCSD calls in GERAN. Changing them during a call does not affect the current call. Read command returns the current values.

<wRx> <codings>

Mandatory when transparent HSCSD implemented. This command is only applicable to GERAN UEs.

Set command controls parameters for originating non-transparent HSCSD calls. Values may also be used during mobile terminated data call setup. In GERAN, changing <topRx> or <codings> value during a call does not affect the current call. In GERAN, changing of <wAiur> or <wRx> affects the current call only if <topRx> was non-zero when call was established. Read command returns the current values. Test command returns values supported as compound values.

<wAiur> <wRx> <topRx> <codings>

Mandatory when non-transparent HSCSD implemented.

Execution command returns information about current HSCSD call. If no HSCSD call is active, all parameters returned shall equal zero. If HSCSD call is active in UTRAN, all non-applicable parameters returned shall be equal to zero. (It is manufacturer specific whether non-zero information is returned in case of an active normal single-slot data call.)

<rx> <tx> <aiur> <coding>

Optional.

Enabled command returns intermediate result code +CHSR: <type> from the TA to the TE when an HSCSD call is being set up. The result code represents the current (negotiated or renegotiated) HSCSD parameters. If enabled, the intermediate result code is transmitted at the point of the call setup negotiation where the TA has determined what type of an HSCSD connection will be used. Result code transmission is done after possible service (+CR), error control (+ER), and/or compression (+DR) reporting but before possible TE-TA rate (+ILRR) reporting and before the intermediate result code CONNECT is transmitted. The format of the intermediate result code is: +CHSR: <rx>,<tx>,<aiur>,<coding> For the value definitions, refer to +CHSN and +CHSC commands. For instance, for a non-transparent HSCSD call, result code '+CHSR: 2,2,4,8' means that the call has two timeslots in both up- and downlink, the air interface user rate is 28800 bps, and the used channel coding TCH/F14.4. For HSCSD in UTRAN, all non-applicable parameters returned shall be equal to zero. Read command returns the current value of <mode>. Test command returns the values supported by the UE as a compound value.

<mode>

Mandatory when HSCSD implemented.

Set command controls whether or not automatic user initiated service level upgrading shall be used for non-transparent HSCSD calls. "Automatic" means that, if enabled, the ME/TA shall use the UP bit in the received RLP frames to determine when to initiate user initiated service level upgrading (i.e. when to modify the +CHSN parameters <wAiur> and/or <wRx> for the current call). Refer to TS 27.001 for details on the interpretation of the UP bit(s). Read command returns the current value of <mode>. Test command returns values supported as a compound value.

<mode>

Optional. This command is only applicable to GERAN UEs.

Set command controls the preferred asymmetry bias for non-transparent ECSD calls. Downlink biased asymmetry means that 8-PSK modulation is preferred downlink and GMSK modulation uplink. Uplink based asymmetry means that 8-PSK modulation is preferred uplink and GMSK downlink. Changing of <mode> affects the current call only if <topRx> (refer +CHSN) was non-zero when call was established. Read command returns the current value of <type>. Test command returns values supported by the MT/TA as a compound value. The <mode> subparameter range indirectly indicates the UE Type; range (0-1) indicates UE Type A and range (0-2) indicates UE Type B.

<mode>

Mandatory when non-transparent ECSD is implemented. This command is only applicable to GERAN UEs.

Set command selects the bearer or teleservice to be used when mobile terminated single numbering scheme call is established. Parameter values set with +CBST command shall be used when <mode> equals to a data service. Read command returns the current value of <mode>. Test command returns values supported as a compound value.

<mode>

Optional.