HNB-CS Network Configuration Mode Commands

HNB-CS Network Configuration Mode Commands
 
The HNB-CS Network configuration mode provides the commands to create, provide, and manage the circuit switched (CS) network instance allowing the Home Evolved NodeB Gateway (HNB-GW) access with the CS core network in a 3G UMTS network.
associate alcap-service
Associates a previously defined Access Link Control Application Part (ALCAP) service with the CS network instance for multiplexing of different users onto one AAL2 transmission path using channel IDs (CIDs). This configuration is provided to support IuCS-over-ATM functionality
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
associate alcap-service svc_name context ctx_name
no associate alcap-service
no
Removes the associated ALCAP service from this HNB-CS network instance configuration.
svc_name
Identifies the name of the ALCAP service preconfigured in Context configuration mode to associate with an HNB-CS network instance for multiplexing of different users onto one AAL2 transmission path using channel IDs (CIDs).
svc_name must be a preconfigured ALCAP service.
Only one instance of this command can be configured.
Caution_iconCaution: If this CLI is not configured any RAB-ASST-REQ requesting AAL2 connection setup shall be rejected with an appropriate cause.
contextctx_name
Specifies the name of the context in which ALCAP service is configured.
ctx_name must be an existing context name in which this ALCAP service is configured.
Usage
Use this command to configure IuCS-over-ATM support. This association of ALCAP protocol service configuration in HNB-CS network instance provides multiplexing of different users onto one AAL2 transmission path using channel IDs (CIDs).
Caution_iconCaution: If this CLI is not configured any RAB-ASST-REQ message requesting AAL2 connection setup shall be rejected with an appropriate cause.
note_smallImportant: This command must not be used more than once to configure IuCS-over-ATM support.
Example
Following command associates ALCAP service alcap_svc1 configured in context named Ctx_alcap1 with specific HNB-CS network instance:
associate alcap-service alcap_svc1context ctx_alcap1
associate rtp pool
Associates a previously defined RTP pool (IP pool) with the CS network instance to be used for assignment of IP address/port as RTP streams end point address over IuCS interface. This configuration support is provided for RTP stream management feature in an HNB-GW service.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
associate rtp pool pool_name context ctx_name
no associate rtp pool
no
Removes the associated RTP pool (IP pool) from this HNB-CS network instance configuration.
pool_name
Identifies the name of the RTP IP pool preconfigured in Context configuration mode to associate with an HNB-CS network instance to be used for assignment of IP address/port over the IuCS interface RTP streams.
pool_name must be an existing IP pool name configured in Context configuration mode.
note_smallImportant: For IP pool (RTP pool) configuration, refer Context Configuration Commands Mode chapter.
contextctx_name
Specifies the name of the context in which RTP pool (IP pool) is configured.
ctx_name must be an existing context name in which this IP pool is configured.
Usage
Use this command to associate RTP pool (IP Pool) with an HNB-CS network instance for allotment of IP address/port over IuCS interface for RTP streams across all sessions. A fixed range of RTP ports from 5000 through 65000 shall be used to allocate to RTP stream.
note_smallImportant: This command must be used to provide IP address/port for RTP streams end point address over IuCS interface.
note_smallImportant: This configuration support is provided for RTP stream management feature on an HNB-GW service.
Example
Following command associates RTP pool named rtp_1 with specific HNB-CS network instance:
associate rtp pool rtp_1
associate sccp-network
Associates a predefined Signaling Connection Control Part (SCCP) network id with the CS network instance in order to route the messages towards MSC/VLR over IuCS interface.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
associate-sccp-network sccp_net_id
no associate-sccp-network
no
Removes the associated SCCP network id from this HNB-CS network instance configuration.
sccp_network_id
Identifies the predefined SCCP network id to associate with an HNB-CS network instance over IuCS/IuFlex interface to enable connection with MSC/VLR(s).
sccp_network_id must be a predefined SCCP network id in Global configuration mode.
Usage
Use this command to associate a preconfigured SCCP network id over IuCS interface in HNB-GW service to connect with CS network elements; i.e. MSC.
Caution_iconCaution: The SCCP network id must be defined in Global Configuration mode before using it with this command.
note_smallImportant: A single SCCP network configuration instance can not be shared with multiple HNB-CS network instances.
Example
Following command associates SCCP network 2 with specific HNB-CS network instance:
associate-sccp-network 2
end
Exits the current configuration mode and returns to the Exec mode.
Product
All
Privilege
Security Administrator, Administrator
Syntax
end
Usage
Use this command to return to the Exec mode.
exit
Exits the current mode and returns to the parent configuration mode.
Product
All
Privilege
Security Administrator, Administrator
Syntax
exit
Usage
Use this command to return to the parent configuration mode.
map core-network-id
Maps/associates the CS core network id to a default Mobile Switching Center (MSC) in network using MSC point code in HNB-CS network to allow HNBs to access UMTS network.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
map core-network-id cn_id point-code msc_point_code
no map core-network-id cn_id
no
Removes the mapping of a CS core network id with particular MSC point code.
cn_id
Specifies the core network identifier configured to represent a UMTS CS core network as an integer from 0 through 4095.
Multiple instance of this command can be mapped with different MSC point code.
point-code msc_point_code
Specifies the SS7 address of the default MSC in the CS network in point code value to a configured HNB-CS network instance.
point_code is an SS7 point code in dotted-decimal ###.###.### or 8-digit decimal ######## format.
Only one instance of this MSC point code can be mapped with one CS core network id.
Usage
Use this command to map a UMTS CS core network identifier with a particular MSC point code.
This command can be entered multiple times with same MSC point code to map with one or more CS core network Id, but a particular core network identifier can be mapped to one MSC only.
This command is instrumental in Iu-Flex functionality, whenever HNB-GW receives RESET/RESET-RES messages from MSC with Global CN-ID information element, the response from HNB-GW is sent to the node configured for that particular Global CN-ID.
If the RESET/RESET-RES messages do not have Global CN-ID IE, then the response of those messages is directed to the default MSC which is configured using msc point-code command in this mode.
Example
The following command configures the CS core network identifier 101 with an MSC point code 1.2.3:
map core-network-id 101 point-code 1.2.3
The following command configures the CS core network identifier 102 with the same MSC point code 1.2.3:
map core-network-id 102 point-code 1.2.3
map idnns
Configures the mapping of Intra-Domain NAS Node Selector (IDNNS) IE received from UE in RUA connect message towards HNB-GW to MSC point code. This is an important configuration for CS network resource sharing over Iu-Flex interface.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
map idnns range idnns_start to idnns_end point-code msc_point_code [ backup point-code bkup_msc_point_code]
no map idnns range idnns_start to idnss_end
no
Removes the entries of mapping of range of IDNNS received from UE with particular MSC point code.
range idnns_start to idnns_end
Specifies the range of IDNNS received from the UE to map with a particular MSC point code during initial CS core network node selection.
idnns_start is an integer from 0 through 1023 that should be less than idnns_end.
idnns_end must be an integer from 0 through 1023 that should be more than idnns_start.
The command can be entered more than once to map multiple IDNNS ranges to the same MSC, but overlapping and mapping of the same range to different MSC point codes is not allowed.
point-code msc_point_code
Specifies the SS7 address of the MSC in the CS network to map with a range of IDNNS values.
msc_point_code is an SS7 point code in dotted-decimal ###.###.### or 8-digit decimal ######## format.
backup point-code bkup_msc_point_code
Specifies the SS7 address of the MSC to be used as a backup in the CS network to map with a range of IDNNS values.
bkup_msc_point_code is an SS7 point code in dotted-decimal ###.###.### or 8-digit decimal ######## format.
Usage
Use this command to map a NRI received from UE during initial CS network node selection to MSC point code through NRI range mapping over Iu-Flex interface.
The IDNNS refers to the information element in RUA connect message from UE towards RAN (HNB-GW). In IDNNS IE, if the choice of routing mentioned is other than local P-TMSI, then the value it provides is used against this configuration to map the MSC point code.
If backup MSC point-code is specified, then specified MSC works as backup for the IDNS range configured. This Backup MSC is selected if the mapped MSC for a given IDNNS range is going for offloading using offload-msc point-code command.
The command can be entered more than once to map multiple IDNNS ranges to same MSC point code, but overlapping and mapping of same range to different MSC point code is not allowed.
Example
The following command maps the IDNNS range from 101 to 201 with MSC point code 1.2.3 and point code 7.8.9 as backup MSC point code:
map nri range 101 to 201 point-code 1.2.3 backup point-code 7.8.9
The following command removes all IDNNS range matching entries between 301 to 399 from the configuration:
no map idnns range 301 to 399
map lac
Configures the mapping of the Location Area Code (LAC) received from UE to an MSC point code. This is an important configuration for CS network resource sharing without Iu-Flex interface configuration.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
map lac range lac_start to lac_end point-code msc_point_code
no map lac range lac_start to lac_end
no
Removes the entries of mapping of range of LACs received from UE with particular MSC point code.
range lac_start to lac_end
Specifies the range of LACs received from UE to map with particular MSC point code during initial CS core network node selection.
lac_start is an integer from 0 through 65535 that should be less than lac_end.
lac_end is an integer from 0 through 65535 that should be more than lac_start.
The command can be entered more than once to map multiple LAC ranges to same MSC, but overlapping is not allowed.
point-code msc_point_code
Specifies the SS7 address of the MSC in the CS network to map with a range of LAC values.
point_code is an SS7 point code in dotted-decimal ###.###.### or 8-digit decimal ######## format.
Usage
Use this command to map a LAC, received from UE during HNB registration, for MSC selection over IuCS interface through LAC range mapping with MSC point code.
This configuration is used during initial CS core network node selection when the LAC from the UE is available. This configuration is used when the core network is not using Iu-Flex interface for MSC selection.
The command can be entered more than once to map multiple LAC ranges to same MSC point code.
note_smallImportant: This command can be used together with Iu-Flex configuration, but MSC selection based on LAC takes place only if Iu-Flex is not configured. If both Iu-Flex and LAC are configured then selection of MSC is based on Iu-Flex configuration only.
Example
The following command maps the LAC range from 20 to 50 with MSC point code 1.2.3:
map lac range 20 to 50 point-code 1.2.3
The following command removes all LAC range matching entries between 20 to 50 from the configuration:
no map lac range 20 to 50
map nri
Configures the mapping of Network Resource Identifier (NRI) sent from UE to the MSC point code. This is an important configuration for CS network resource sharing over Iu-Flex interface.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
map nri range nri_start to nri_end point-code msc_point_code
no map nri range nri_start to nri_end
no
Removes the entries of mapping of range of NRIs received from UE with particular MSC point code.
range nri_start to nri_end
Specifies the range of NRIs received from UE to map with pa articular MSC point code during initial CS core network node selection.
nri_start is an integer from 0 through 1023 that should be less than nri_end.
nri_end is an integer from 0 through 1023 that should be more than nri_start.
The command can be entered more than once to map multiple NRI ranges to same MSC, but overlapping is not allowed.
point-code msc_point_code
Specifies the SS7 address of the MSC in the CS network to map with a range of NRI values.
point_code is an SS7 point code in dotted-decimal ###.###.### or 8-digit decimal ######## format.
Usage
Use this command to map a NRI received from UE during initial CS network node selection to MSC point code through NRI range mapping over Iu-Flex interface.
This configuration is used during initial CS core network node selection when the network resource identifier (NRI) from the UE is available. The NRI range is mapped to MSC point code. This configuration is used when the core network uses Iu-Flex interface.
The command can be entered more than once to map multiple NRI ranges to same MSC point code.
It is possible to configure multiple ranges to more than one MSC however this configuration is required only when the CS core network is configured as Multi-Operator Core Network (MOCN).
When the CS core network is not MOCN and one range is mapped to more than one MSC then MSC is selected randomly in a non-predictable manner.
Example
The following command maps the NRI range from 101 to 201 with MSC point code 1.2.3:
map nri range 101 to 201 point-code 1.2.3
The following command maps the NRI range from 301 to 399 with MSC point code 1.2.3:
map nri range 301 to 399 point-code 1.2.3
The following command removes all NRI range matching entries between 301 to 399 from the configuration:
no map nri range 301 to 399
msc deadtime
Configures a timer on the HNB-GW to manage MSC availability in a CS core network on receiving of a PC-STATE-DOWN or SSN-STATE-DOWN (RANAP) indication from an SCCP instance.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
msc deadtime { immidiate |dur }
[ no | default ] msc deaddtime
no
Marks the peer node (MSC) as always available; it can never be marked down for a specific HNB-CS network instance.
default
Sets the default action for HNB-GW and provisions it as such that the peer node (MSC) is marked down as soon as HNB-GW receives PC-STATE-DOWN or SSN-STATE-DOWN (RANAP) indication from SCCP in a specific HNB-CS network instance. Default: Enabled
immidiate
Sets the HNB-GW to mark the peer node (MSC) down immediately and clears all Iu-CS connections towards the MSC. Default: Disabled
dur
Sets the duration (in seconds) for a timer that starts when the HNB-GW receives a PC-STATE-DOWN or SSN-STATE-DOWN (RANAP) indication from SCCP for a peer MSC. On expiry of this timer the peer MSC is marked as dead and all Iu-CS connections towards that MSC are released.
dur is an integer from 1 through 30.
Only one instance of this command can be configured.
Usage
This command is used to configure a timer on HNB-GW to manage MSC availability in a CS core network on receiving of PC-STATE-DOWN or SSN-STATE-DOWN (RANAP) indication from SCCP. This configuration plays important role during RANAP reset procedure as well.
Timer value sets the duration in seconds for a timer which started once HNB-GW receives PC-STATE-DOWN or SSN-STATE-DOWN (RANAP) indication from SCCP for a peer MSC. On expiry of this timer the peer MSC is marked as dead and all Iu-CS connections towards that MSC shall be released.
note_smallImportant: This command can be entered only once. Reentering this command overwrites the previous parameters.
Example
The following command configures the deadtime timer value for 10 seconds on HNB-GW. Once HNB-GW receives PC-STATE-DOWN or SSN-STATE-DOWN (RANAP) indication from SCCP for a peer MSC the HNB-GW waits for configured period and on expiry of timer it marks the specific MSC as dead:
msc deadtime 10
msc point-code
Configures the default MSC point-code within an HNB-CS network instance. This command is used when HNB-GW is to be connected to only one MSC with in a CS network or as default MSC for all HNBs connected through specific HNB-CS network instance.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
[ no ] msc point-code point_code
no
Removes the configured default MSC point code from a specific HNB-CS network instance.
Caution_iconCaution: Removing the MSC point code is a disruptive operation and affects all HNB sessions which are connected to particular MSC through an HNB-CS network instance.
msc point_code
Specifies the SS7 address of the default MSC in the CS network to this configured HNB-CS network instance.
point_code is an SS7 point code in dotted-decimal ###.###.### or 8-digit decimal ######## format.
Only one instance of this command can be configured.
Usage
Use this command to configure a default MSC to which HNB connects for CS network access through HNB-GW service.
Point-code is an SS7 address for an element in the SS7 network. Point-codes must be defined in dotted-decimal format in a string of 1 to 11 digits. Format options include:
•
0.0.1 to 7.255.7 for point-code in the ITU range.
•
0.0.1 to 255.255.255 for point-code in the ANSI range.
•
0.0.1 to 15.31.255 for point-code in the TTC Range.
•
a string of 1 to 11 digits in dotted-decimal to represent a point-code in a different range.
note_smallImportant: This command can be entered only once. If entered again the previous value shall be overwritten.
Example
The following command configures a default MSC with point code 101.201.101 for HNBs to access CS network through HNB-GW service in this HNB-CS network instance:
msc point-code 101.201.101
nri length
Configures the network resource identifier (NRI) length in bits to identify a specific MSC serving in a pooled area. At least one NRI value has to be assigned to an MSC serving in a pool. The NRI is coded inside of the temporary mobile subscriber identity (TMSI), located within bits 14 to 23 with an variable length between 0 and 10 bits. Operator needs to set this NRI length to indicates the number of bits that shall be used for the NRI field to set the parameters for Iu-Flex (MSC pooling) functionality.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
nri length nri_value
default nri length
default
Sets the NRI length to the default value of 0 and disables the Iu-Flex (MSC pooling) functionality.
nri length nri_value
Default: 0
Specifies the number of bits to be used in the P-TMSI (bits 23 to 18) to define the network resource identifier (NRI). The NRI length configuration also sets the maximum size of the pool. If not configured, the NRI length is of zero length.
length is an integer from 1 to 10 that identifies the number of bits. When a non-zero value is configured the CS network is considered to be a pool.
Usage
Use this command to enable the Iu-Flex functionality on HNB-GW. This command identifies a unique MSC serving a pooled area for Iu-Flex functionality and at least one NRI value has to assigned to an MSC serving in a pool. It performs MSC pooling/offloading scenario over Iu-Flex interface. The NRI is stored in the bits 14 to 23 of TMSI. The HNB-GW uses a portion of this NRI to set the parameters for Iu-Flex (MSC pooling) functionality.
If more than one NRI is configured, the HNB-GW service does round-robin between the available NRIs when new subscriber(s) (re)connect.
This command must be used in conjunction with null nri command to configured MSC pooling/offloading over Iu-Flex interface.
Example
The following command sets the HNB-GW to a bit length of 6 to derive the values from the NRI field (stored in bits 14 to 23 of TMSI) to set the parameters for Iu-Flex (MSC pooling) functionality:
nri length 6
null-nri
Configures the null NRI for load redistribution in support of Iu-Flex functionality. The NRI value defined with this command must be unique across the pool areas. This null-NRI is used by HNB-GW for load redistribution during MSC offloading.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
null-nri null_nri_value
no null-nri null_nri_value
no
Disables/removes the configured null-NRI value used for MSC offloading procedure.
null_nri_value
Specifies the null-NRI value to be used by HNB-GW for load re-distribution during MSC offloading as an integer from 0 through 1023.
Without MOCN configuration this value can be entered only once.
For MOCN a unique null-NRI must be assigned to each MOCN operator identified by its PLMN-ID (MCC+MNC).
A 0 (zero) value configured as a null-NRI indicates the keyword is not to be used. There is no default value for this parameter.
Usage
Use this command to identify the MSC to be used by HNB-GW for load redistribution during MSC offloading over an Iu-Flex interface.
There is one unique null-NRI in a PLMN supporting pool functionality.
Without MOCN configuration this command can be entered only once. For MOCN a unique null-NRI must be assigned to each MOCN operator identified by its PLMN-ID (MCC+MNC).
Example
The following command sets the null-NRI as 1001 to be used by HNB-GW for load redistribution during MSC offloading:
null-nri 1001
offload-msc
Provisions the HNB-GW to enable or disable the exclusion of a particular primary MSC node during an NAS Node Selection Function (NNSF) procedure when it needs to be offloaded while using Iu-Flex functionality on the HNB-GW.
Product
HNB-GW
Privilege
Security Administrator, Administrator
Syntax
[ no ] offload-msc point-code msc_point_code
no
Removes the specified primary MSC point code from the exclusion list for NNSF function on HNB-GW and re-enables the inclusion of the primary MSC to be considered by HNB-GW.
point-code msc_point_code
Specifies the SS7 address of the primary MSC in the CS network to be excluded for NNSF function on HNB-GW when it needs to be offloaded via Iu-Flex functionality.
point_code is an SS7 point code in dotted-decimal ###.###.### or 8-digit decimal ######## format.
Only one instance of this primary MSC point code can be mapped with one CS core network id.
Usage
Use this command to provision the HNB-GW to enable or disable the exclusion of the primary MSC node when it needs to be offloaded.
When this command is enabled for exclusion of primary MSC node during NNSF function in HNB-GW, the HNB-GW excludes the particular node from being considered.
User can re-enable the inclusion of the primary MSC node to be considered for NNSF functionality by no offload-msc point-code command.
note_smallImportant: Offload check is only for the primary point code and NOT for the backup point code.
This command can be used for planned maintenance as well.
Example
The following command configures the HNB-GW to exclude the primary MSC point code 1.2.3 from being considered in NSSF function for Iu-Flex support:
offload-msc point-code 1.2.3
The following command re-enables the inclusion of MSC point code 1.2.3 from being considered in NSSF function for Iu-Flex support:
no offload-msc point-code 1.2.3
 
 
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