Method and device for transferring session related information
A technology of related information and transfer method, applied in the field of transfer method and device of session related information, can solve problems such as poor user experience, inability to transfer session control right, inability to realize CS media stream transfer, etc., and achieve the goal of improving user experience Effect
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Embodiment 1
[0037] Assuming that UE-1 and UE-2 are local user equipment, UE-1 and UE-2 have real-time media streams media-B and media-A, media-B and media-A respectively with Remote-UE (peer UE) Constitute the current Collaborative Session. Wherein, UE-2 is an SC UE, media-A is a CS media stream, UE-1 is currently a controller UE, and UE-2 is a controller UE.
[0038] This embodiment provides a method for transferring the Collaborative Session Control of UE-1 to UE-2, see figure 1 shown, including the following steps:
[0039]S101. UE-1 initiates a control right transfer request to SCC AS, requesting to transfer Collaborative SessionControl to UE-2, and the request can reach SCC AS through S-CSCF (Serving-Call Session Control Function, Serving-Call Session Control Function entity). The request message can use messages such as refer (reference), re-Invite (re-invite) or Update (update).
[0040] In the request message, a specific message header needs to be carried to indicate the transf...
Embodiment 2
[0069] Assuming that UE-1 and UE-2 are local user equipment, UE-1 and UE-2 have real-time media streams media-B and media-A with Remote-UE respectively, and media-B and media-A constitute the current Collaborative Session . The UE-1 is the SC UE, the current UE-1 is the controller UE, and the UE-2 is the controller UE.
[0070] This embodiment provides a method for transferring media-A of UE-2 to the CS domain of UE-1, see figure 2 shown, including the following steps:
[0071] S201. UE-1 initiates a media stream transfer request to the SCC AS, requesting to transfer media-A to UE-2, and the request can reach the SCC AS through the S-CSCF. The request message can use messages such as refer, re-Invite, or Update.
[0072] In the request message, a specific message header needs to be carried to indicate the transfer operation of the media stream. For example, if the IUT-Transfer (inter-user equipment transfer) message header is used, it is used to indicate the specific messa...
Embodiment 3
[0094] Assuming that UE-1 and UE-2 are local user equipment, UE-1 and UE-2 have real-time media streams media-B and media-A with Remote-UE respectively, and media-B and media-A constitute the current Collaborative Session . The UE-1 is the SC UE, the current UE-1 is the controller UE, and the UE-2 is the controller UE.
[0095] In practical applications, user equipment may switch between access networks with different functions. For example, when a user equipment is switched from a PS1 network that supports VOIP (Voice over Internet Protocol, IP network voice transmission) to a PS2 network that does not support VOIP, it is necessary to transfer the voice service originally carried on the PS1 network to the CS network to ensure service continuity. continuity. For example, when the user equipment is handed over from the WLAN network to the GPRS network, since the GPRS network does not support VOIP, it is necessary to transfer related voice services to the GSM network.
[0096...
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