Method and equipment for transmitting data
A transmission method and data technology, applied in the field of communication, can solve problems such as large transmission delay, reduced user experience, consumption of backhaul link resources, etc., to achieve the effect of reducing transmission load, reducing transmission delay, and saving backhaul link resources
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Example Embodiment
[0079] Example one
[0080] The first embodiment of the present invention provides a data transmission method to optimize user plane data routing in a scenario where a mobile RN is used; for example, Image 6 As shown, the method includes the following steps:
[0081] Step 601: RN (mobile RN) obtains the transport layer care-of address allocated by the target DeNB for itself.
[0082] Method 1: Before the RN accesses the target DeNB, the RN obtains the transport layer care-of address from the handover command; Figure 7 As shown, it is a schematic diagram of the RN obtaining the transport layer care-of address from the handover command. This process includes the following steps:
[0083] Step 701: The source DeNB sends a handover request to the target DeNB. The handover request carries an RN indication, and the RN indication is used to indicate that the handover node is an RN; in addition, the handover request may also carry RN Context: such as RN Capability information, configuration...
Example Embodiment
[0125] Example two
[0126] Based on the same inventive concept as the above method, an embodiment of the present invention also provides a relay node RN, such as Picture 10 As shown, the relay node RN includes:
[0127] The obtaining module 11 is used to obtain the transport layer care-of address allocated by the target donor base station DeNB for the RN; the sending module 12 is used to notify the service gateway S-GW corresponding to the user equipment UE of the transport layer care-of address. -The GW uses the transport layer care-of address to send the data that needs to be sent to the RN to the target DeNB.
[0128] The obtaining module 11 is specifically configured to obtain the transport layer care-of address by receiving a handover command from the source DeNB before accessing the target DeNB; wherein, the handover command carries the transport layer care-of address, and The transport layer care-of address is notified by the target DeNB to the source DeNB through a handove...
Example Embodiment
[0132] Example three
[0133] Based on the same inventive concept as the above method, an embodiment of the present invention also provides a serving gateway S-GW, where the S-GW is the S-GW corresponding to the user equipment UE, such as Picture 11 As shown, the service gateway S-GW includes:
[0134] The obtaining module 21 is used to obtain the transport layer care-of address allocated by the target donor base station DeNB to the relay node RN; the sending module 22 is used to use the transport layer care-of address to send data that needs to be sent to the RN to the target DeNB.
[0135] The obtaining module 21 is specifically configured to obtain the transport layer care-of address by receiving a bearer modification request from the mobility management entity MME corresponding to the UE; wherein the bearer modification request carries the transport layer care-of address, And the transport layer care-of address is sent by the RN to the MME through a path switching request.
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