Content for TS 23.437 Word version: 19.0.0
9.4 Spatial localization services p. 53
9.4.1 General p. 53
This spatial localization services enables consumer to request SEAL SM Server for localization of a VAL user or VAL UE.
9.4.2 Procedure p. 53
Figure 9.4.2-1 depicts the procedure for the authorized spatial map consumer (VAL server or SEAL SM client) to invoke spatial localization services. The service is provided by SEAL SM server.
Pre-condition:
- Spatial map is created and the authorized consumer is aware of the spatial map identity.
Step 1.
The VAL server (or SEAL SM client) sends request to perform localization service in the spatial map to the SEAL SM server. The request includes identity of the map on which the action is to be performed. The request may include list of users (or UEs) to localize.
Step 2.
The SEAL SM server authorizes the requestor (e.g. VAL server or SEAL SM client). If the requestor is not authorized then the SEAL SM server sends failure response. If the request is authorized: the SEAL SM server, identifies all users/UEs along with their three dimensional location in the spatial map. If area of interest IE is present then the SEAL SM server identifies the target users/UEs within the area of interest only, otherwise, the SEAL SM server identifies the target users for whole map (according to the area associated with spatial map identifier).
Step 3.
The SEAL SM server sends response to the VAL server (or SEAL SM client). The response includes the object localization and identity.
9.4.3 Information flows p. 53
9.4.3.1 Spatial localization service request p. 53
Table 9.4.3.1-1 describes information elements for the spatial localization service request from the SM client or VAL server to the SM server.
| Information element | Status | Description |
|---|---|---|
| Requestor identity | M | The identity of the requestor (e.g., SEAL SM client, VAL server). |
| Requestor security credentials | M | The security credentials of the requestor. |
| Spatial Map Id | M | Identity of the spatial map. |
| Area of interest | O | Contains three dimensional area within spatial map. |
| Target identities | O | List of identity of the users or objects to localize. |
9.4.3.2 Spatial localization service response p. 54
Table 9.4.3.2-1 describes information elements for the spatial localization service response from the SM server to the SM client or VAL server.
| Information element | Status | Description |
|---|---|---|
| Result | M | Indicates success or failure of the action. |
| Object details (NOTE) | O | A list of objects or users. |
| >> UE id | O | Identity of the UE. |
| >> localization | O | 3D position and pose of the VAL UE. |
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NOTE:
This IE should be added in case of successful response.
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