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An Anchor-Based User-Centric Multi-Connection Mobility Design Method

A design method and multi-connection technology, applied in the field of mobility research, can solve problems such as increased signaling overhead

Active Publication Date: 2020-10-23
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] However, the number of handovers in user-centric multi-connection networks increases with the number of serving APs, making the corresponding signaling overhead from the base station to the network

Method used

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  • An Anchor-Based User-Centric Multi-Connection Mobility Design Method
  • An Anchor-Based User-Centric Multi-Connection Mobility Design Method
  • An Anchor-Based User-Centric Multi-Connection Mobility Design Method

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Experimental program
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Embodiment Construction

[0021] Implementation steps of the user-centered power control mechanism:

[0022] In step 300, the user initially accesses the network, and M APs with the strongest DL-RSS form an active set for the user, and transmit data for the user at the same time. The AP with the largest backhaul capacity in the active set is responsible for the control plane as the AP C.

[0023] Step 310 , each time slot, the user reports the RSRP of surrounding APs to AP C as a measurement report, so as to determine whether to trigger a handover.

[0024] Step 320, AP C judges whether there is a new AP, which can provide stronger DL-RSS signal strength than any AP in the active set. If there is, and AP C in the active set remains unchanged, AP C triggers the switch.

[0025]Step 330, if the DL-RSS provided by AP C in the active set is weaker than that of the new AP C, before switching the control plane, the serving AP C selects the AP with the largest backhaul capacity from the active set as the ta...

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Abstract

The invention provides a user-centered multi-connection mobility design method based on an anchor point. In a user-centered network, multiple APs serve users simultaneously through multi-connection technology, which is called active set. The AP with the largest backhaul capacity is responsible for the control plane as an AP C, and is responsible for the user plane together with other APs. AP C updates the active set AP according to DL-RSS to ensure that the user is always at the center of the active set. When there is a new AP that provides stronger RSS than any service AP, if AP C is unchanged, then AP C controls the switch of user plane. If the AP C leaves the active set, the AP with the largest backhaul capacity is selected from the active set as the target AP C, and the switch of the control plane occurs. Compared with traditional dense network handoff design, anchor-based user-centered multi-connection mobility performance is significantly improved, and the control plane handoff probability is reduced by at least 30%.

Description

technical field [0001] The present invention relates to the field of wireless communication technologies, and in particular to research on mobility of user-centric networks in ultra-dense network scenarios in the 5th generation mobile communication system (the 5th generation, referred to as 5G for short). Background technique [0002] The dramatic growth in the number of mobile subscribers and their traffic demands is driving cellular network operators to offer higher capacity networks. Ultra-dense network (Ultra-Dense Network, UDN), as one of the emerging technologies of 5G, can provide higher network capacity by shortening the service distance through intensive deployment of small cells, and achieve a significant increase in capacity and frequency reuse efficiency. Therefore, it is considered to be the main technical means to meet the mobile data traffic demand in the 5G network in 2020. [0003] However, network densification means an increase in the number of potential ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/08H04W36/30
CPCH04W36/0027H04W36/0083H04W36/08H04W36/30
Inventor 张鸿涛黄婉晴牛沐楚
Owner BEIJING UNIV OF POSTS & TELECOMM
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