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Content for  TS 26.501  Word version:  18.0.0

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5.11 Procedures for downlink media streaming data collection, reporting and exposure  5.11.1 Configuration of 5GMSd AS data collection client for downlink media streaming access reporting  5.11.2 Downlink media streaming access activity reporting by 5GMSd AS  5.11.3 Downlink media streaming access event exposure  5.11.4 Downlink media streaming access reporting parameters  5.11.5 Triggering downlink media streaming access reporting 
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5.11  Procedures for downlink media streaming data collection, reporting and exposure |R17|  p. 82

5.11.1  Configuration of 5GMSd AS data collection client for downlink media streaming access reporting  p. 82

The 5GMSd AS obtains its data collection client configuration at reference point R4 as part of its initialisation procedure, as shown in Figure 5.11.1-1.
Copy of original 3GPP image for 3GPP TS 26.501, Fig. 5.11.1-1: Data collection client configuration
Figure 5.11.1-1: Data collection client configuration
(⇒ copy of original 3GPP image)
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for downlink media streaming access reporting
The 5GMSd AS shall periodically refresh its data collection client configuration and act appropriately on any changes in the configuration.

5.11.2  Downlink media streaming access activity reporting by 5GMSd AS  p. 82

The 5GMSd AS shall use the procedure shown in Figure 5.11.2-1 to report downlink media streaming access to the Data Collection AF instantiated in the 5GMSd AF when the data collection client configuration obtained using the procedure in clause 5.10.1 indicates that it should do so.
Copy of original 3GPP image for 3GPP TS 26.501, Fig. 5.11.2-1: Downlink media streaming access reporting
Figure 5.11.2-1: Downlink media streaming access reporting
(⇒ copy of original 3GPP image)
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The data report defined in clause 4.6.1 of TS 26.531 shall be used by the 5GMSd AS to report the activity of downlink media streaming access by the Media Player. Each downlink access logged by the 5GMSd AS in relation to such activity shall be reported as a single record in a report submitted to the Data Collection AF at reference point R4. The parameters included in the data report are defined in clause 5.11.4. The frequency of reporting is defined in clause 5.11.5.
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5.11.3  Downlink media streaming access event exposure  p. 83

Copy of original 3GPP image for 3GPP TS 26.501, Fig. 5.11.3-1: Downlink media streaming access event exposure
Figure 5.11.3-1: Downlink media streaming access event exposure
(⇒ copy of original 3GPP image)
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The 5GMS System shall follow the procedures for event reporting defined in clause 4.15.1 of TS 23.502. In the context of downlink media streaming:
  • The role of event provider NF (also referred to in TS 23.502 as event provider NF, event provider, or NF producer) is performed by the 5GMSd AF and its subordinate Data Collection AF or the NEF.
  • The role of event consumer NF (also referred to in TS 23.502 as consumer NF, NF service consumer, or NF consumer) is performed by the NWDAF, the NEF and/or the Event Consumer AF of the 5GMSd Application Provider.
When one of the abovementioned event consumer entities subscribes to event reporting at the 5GMSd AF:
  • Event subscription parameters contained in Event Reporting Information (such as maximum number of reports, maximum duration of reporting, sampling ratio, partitioning criteria, etc. as defined in clause 4.15.1 of TS 23.502) shall be limited or superseded by similar or identical rules optionally set by a 5GMSd Application Provider in the Event Data Processing Configuration of the 5GMSd AF Provisioning Session, as defined in clause 5.3.1 of the present document.
  • UE targeting rules contained in the Target of Event Reporting (see clause 4.15.1 of TS 23.502) shall be limited or superseded by similar or identical rules optionally set by a 5GMSd Application Provider in Data Access Profiles in the Event Data Processing Configuration of the 5GMSd AF Provisioning Session, as defined in clause 5.3.1 of the present document.
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5.11.4  Downlink media streaming access reporting parameters  p. 84

Table 5.11.4-1 below describes the parameters reported by the 5GMSd AS in clause 5.11.2 for each downlink media streaming access.
Parameter Cardinality Description
Date-time1..1The date and time of access.
UE identity1..1A unique identifier of the UE accessing the 5GMSd AS, such as the source IP address and port number of the Media Player.
5GMSd AS service endpoint1..1The service endpoint on the 5GMSd AS to which the Media Player is connected for this access, such as the server IP address and port number.
Session identifier0..1An identifier for the HTTP session on which the Media Player request was made for this access.
HTTP request method1..1The HTTP method used for this access.
HTTP request URL1..1The URL requested by the Media Player for this access.
HTTP request version1..1The HTTP version requested by the Media Player for this access.
HTTP request range0..1The value of the Range HTTP request header, if present for this access.
HTTP request size1..1The total number of bytes in the HTTP client request message from the Media Player for this access.
HTTP User Agent0..1A string describing the Media Player that made this access.
User identity0..1A string identifying the user that made the access.
Referrer URL0..1The URL that the Media Player reports being referred from.
Cache status0..1An indication of whether the 5GMSd AS is able to serve the requested URL from cache for this access (a hit) or whether there is a stale object cached (expired) or the requested URL is not present in cache (miss).
For non-caching implementations of the 5GMSd AS, the status is miss for all accesses.
HTTP response code1..1The HTTP response code issued by the 5GMSd AS for this access.
HTTP response size1..1The total number of bytes returned by the 5GMSd AS in the HTTP response message for this access.
HTTP response body size1..1The number of bytes returned by the 5GMSd AS in the HTTP response body for this access.
HTTP response content type0..1The MIME content type of the HTTP response message returned by the 5GMSd AS for this access.
Processing latency1..1The time taken by the 5GMSd AS to respond to the Media Player request, measured from the first byte of the HTTP request being processed by the 5GMSd AS to the last byte of the response being sent.
Mean network round-trip time1..1A rolling mean average of the network round-trip time for the HTTP session on which the access was received.
Network round-trip time variance1..1The variance in the average network round-trip time for the HTTP session on which the access was received.
Transport congestion window size1..1The current size (in bytes) of the congestion window for the transport connection supporting the HTTP session on which the access was received.
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5.11.5  Triggering downlink media streaming access reporting  p. 84

Reports shall be sent by the 5GMSd AS to the Data Collection AS as indicated in the data collection client configuration obtained using the procedure defined in clause 5.11.1.

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