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Signaling processing method and system for relay node switching

A relay node and signaling processing technology, applied in service signaling, wireless communication, electrical components, etc., can solve problems such as failure of UE-related signaling process, failure of signaling forwarding, and failure of S1AP signaling to be forwarded correctly. achieve the effect of reducing the impact

Active Publication Date: 2017-02-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this scenario, since the target DeNB does not have a corresponding S1AP ID mapping table, the target DeNB cannot forward the UE-related S1AP signaling to the correct RN / MME after the RN handover is completed, resulting in failure of the UE-related signaling process
like Figure 4 In the handover method shown, because the target DeNB does not have the S1APID mapping table corresponding to the UE, after the RN handover is completed, the target DeNB cannot forward the UE-related S1AP signaling to the correct RN / MME

Method used

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  • Signaling processing method and system for relay node switching
  • Signaling processing method and system for relay node switching
  • Signaling processing method and system for relay node switching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] After the source base station or the target base station receives the user control signaling, it processes it according to the signaling processing mode of the base station. When the signaling processing mode is the modification mode, the user control signaling is modified according to the user's control signaling identifier mapping information. After the user control signaling is sent to the destination of the user control signaling, when the signaling processing mode is the forwarding mode, the user control signaling is forwarded to the destination of the user control signaling.

[0043] The signaling processing mode of the source base station is forwarding mode and the signaling processing mode of the target base station is modifying mode; or, the signaling processing mode of the source base station is modifying mode and the signaling processing mode of the target base station is forwarding mode.

[0044] Wherein, modifying the user control signaling by the source bas...

Embodiment 2

[0050] After receiving the mapping information, the target base station updates the user's control signaling identifier according to the mapping relationship; after the relay node switches from the source base station to the target base station, when the source base station or the target base station receives the user control signaling, according to this The user control signaling identifier mapping information modifies the user control signaling and sends it to the destination of the user control signaling.

[0051] The method further includes: after receiving the mapping information, the target base station judges whether it conflicts with the user's control signaling identifier stored in the target base station, and if there is a conflict, the target base station allocates a new control signaling identifier for the user and notifies to the source base station. The target base station may send newly allocated user-related control signaling identifier mapping information to t...

Embodiment 3

[0058] After receiving the mapping information, the target base station updates the user's control signaling identifier according to the mapping relationship; after the relay node switches from the source base station to the target base station, when the target base station receives the user's control signaling, it The identifier mapping information modifies the user control signaling and sends it to the relay node or the mobility management entity corresponding to the user.

[0059]The manner in which the source base station sends the control signaling identifier mapping information to the target base station is to send the control signaling identifier mapping information to the target base station through a handover request message.

[0060] After receiving the mapping information, the target base station judges whether it conflicts with the user's control signaling identifier stored in the target base station, and if it conflicts, the target base station allocates a new cont...

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Abstract

The present invention discloses a signaling processing method and system for relay node switching. The method includes: the source base station to which the relay node belongs sends the control signaling identifier mapping information of the user managed by the relay node to the the target base station to which the relay node needs to handover; after the relay node is handed over from the source base station to the target base station, the source base station and / or the target base station performs the user control signal received according to the mapping information order to process. The present invention notifies the source base station of the control signaling identifier mapping information to the target base station, and through simple identifier mapping or updating, ensures the smooth forwarding and execution of the user-related S1 signaling process and reduces the impact of relay node switching on control signaling. the impact.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a signaling processing method and system for relay node switching. Background technique [0002] In order to meet the increasing demand for large bandwidth and high-speed mobile access, the Third Generation Partnership Projects (Third Generation Partnership Projects, 3GPP for short) launched the Long-Term Evolution advanced (LTE-Advanced for short) standard. LTE-Advanced retains the core of LTE for the evolution of Long-Term Evolution (LTE for short), and uses a series of technologies to expand the frequency domain and air domain on this basis to improve spectrum utilization and increase system capacity. capacity etc. [0003] Wireless relay (Wireless Relay) technology is one of the technologies in LTE-Advanced. ) transmit power. Such as figure 1 As shown, a relay node (Relay Node, referred to as RN) provides UEs accessing its cell with functions and se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/20H04W36/08
CPCH04W36/0033H04W84/047H04W4/20
Inventor 陈琳奚进陈思翟恒星
Owner ZTE CORP