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Key, parameter sending method and device, user plane entity, control plane entity

A technology of user plane entities and transmission methods, which is applied in the field of communication and can solve problems such as unproposed solutions and unspecified

Active Publication Date: 2021-11-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] With the physical separation of CP / UP, on the premise that the UP entity is successfully configured, the UP entity can independently process the user service data flow to and from the core network element UPF, but how to realize the secure transmission of the user service data flow in this scenario , has not been specified in the prior art
[0009] For the above-mentioned technical problems in related technologies, no effective solution has been proposed yet

Method used

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  • Key, parameter sending method and device, user plane entity, control plane entity
  • Key, parameter sending method and device, user plane entity, control plane entity
  • Key, parameter sending method and device, user plane entity, control plane entity

Examples

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Embodiment 1

[0037] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, image 3 It is a block diagram of the hardware structure of a mobile terminal according to a method for transmitting a key in an embodiment of the present invention. like image 3 As shown, the mobile terminal 30 may include one or more (only one is shown in the figure) processor 302 (the processor 302 may include but not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA, etc.), for A memory 304 for storing data, and a transmission device 306 for communication functions. Those of ordinary skill in the art can understand that, image 3 The shown structure is only for illustration, and it does not limit the structure of the above-mentioned electronic device. For example, mobile terminal 30 may also include ima...

Embodiment 2

[0062]In this embodiment, a parameter sending method running on the above-mentioned mobile terminal or network architecture is provided, Figure 5 is a flowchart of a parameter sending method according to an embodiment of the present invention, such as Figure 5 As shown, the process includes the following steps:

[0063] Step S502, generating necessary configuration parameters for secure transmission of user plane data; wherein, the configuration parameters include: public root key KgNB, mobile next-hop parameter NH, or configuration parameters include KgNB, NH and at least one of the following parameters: security algorithm identification , the auxiliary value of the subkey corresponding to each data radio bearer DRB configured for the terminal;

[0064] Step S504, sending configuration parameters to the user plane entity; where the configuration parameters are used by the user plane entity to generate independent subkeys for each DRB configured for the terminal.

[0065] ...

Embodiment 3

[0078] In this embodiment, a key sending device is also provided, which is used to implement the above embodiments and preferred implementation modes, and what has already been described will not be repeated. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0079] Image 6 is a structural block diagram of a key sending device according to an embodiment of the present invention, such as Image 6 As shown, the device includes:

[0080] The obtaining module 62 is used to obtain necessary configuration parameters for secure transmission of user plane data; wherein, the configuration parameters include: public root key KgNB, mobile next hop parameter NH, security algorithm identifier, and each data radi...

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PUM

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Abstract

The present invention provides a key, a parameter sending method and device, a user plane entity, and a control plane entity; wherein, the key sending method includes: obtaining configuration parameters necessary for safe transmission of user plane data; wherein, the configuration parameters include: public The root key KgNB, the mobile next hop parameter NH, the security algorithm identifier, and the auxiliary value of the subkey corresponding to each data radio bearer DRB configured for the terminal; generate an independent subkey for each DRB according to the configuration parameters; The independent subkeys generated by each DRB are sent to the terminal. The present invention solves the problem of how to realize the safe transmission of user service data flow under the condition of physical separation of CP and UP, and further achieves the effect of safe transmission.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a key, a parameter sending method and device, a user plane entity, and a control plane entity. Background technique [0002] With the entry into the fifth generation of mobile communication technology (5 th -Generation, referred to as 5G) mobile communication era, mass connections and higher data transmission rate requirements of users, the LTE system between the baseband unit (Baseband Unit, referred to as BBU) and the remote radio unit (Remote Radio Unit, referred to as RRU) The transmission capacity of the fronthaul interface Common Public Radio Interface (CPRI for short) poses a great challenge. Since the CPRI interface transmits in-phase quadrature (IQ) signals processed by physical layer coding and modulation, the corresponding digital bit stream rate is huge, so the CPRI interface has relatively high transmission delay and working bandwidth. Big requirement, otherwise ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/041H04L9/08H04W12/0433
CPCH04L9/0819H04W12/04H04L9/08H04W12/02
Inventor 杨立刘旸
Owner ZTE CORP
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