Vehicle-mounted movable relay switching method based on user movable state perception

A mobile relay and state-aware technology, applied in wireless communication, electrical components, etc., can solve problems such as unsatisfactory requirements, and achieve the effect of avoiding handover failure

Active Publication Date: 2014-01-22
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the current mobile relay is deployed on a low-speed moving bus, the existing research cannot meet the needs due to the change of the application scenario.

Method used

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  • Vehicle-mounted movable relay switching method based on user movable state perception
  • Vehicle-mounted movable relay switching method based on user movable state perception
  • Vehicle-mounted movable relay switching method based on user movable state perception

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Embodiment Construction

[0028] In the following, the vehicle-mounted mobile relay handover method based on the perception of the user's mobile state of the present invention will be described by taking the deployment of the mobile relay on the bus as an example. In the mobile relay application scenario, the bus deployed with the mobile relay stops at the station, and the mobile terminal user (hereinafter referred to as the user) gets on and off the bus; this embodiment includes the switching process of the user boarding and the user getting off The switching method of the vehicle switching process;

[0029] The switching steps of the switching process when the user gets on the car are as follows: figure 1 shown. include:

[0030] 11) When the mobile relay stops at the station along with the bus, the user detects the RSRP (Reference Signal Received Strength) from the mobile relay, and reports the detection result to the current serving base station (the serving base station is preset to start The t...

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Abstract

The invention relates to a vehicle-mounted movable relay switching method based on user movable state perception and belongs to the technical field of wireless communication. The method comprises the steps of user getting-on switching: when a bus stops in a station position, a user detects RSRP (Reference Signal Received Power) from a movable relay and reports to a current service base station; if the reported RSRP is less than a threshold value of a start timer T1, the timer T1 is turned on; the service base station judges a user state according to a received RSRP result within T1 time; if the user is on the bus, the service base station performs switching judgment on the user according to switching parameter setting of the user and conditions meeting the switching judgment; the result is transmitted to the movable relay; and the movable relay performs switching processing on the user according to the switching judgment result. A user getting-off switching process is similar. The method can effectively achieve getting-on and getting-off switching of the user of the vehicle-mounted movable relay, and can effectively avoid switching failure when many users get on or off the bus.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular to a vehicle-mounted mobile relay switching method based on user mobile state perception. Background technique [0002] Compared with previous mobile communication systems, LTE-Advanced (long-term evolution project enhanced technology) can use high-frequency carriers with poor coverage and support high data rate services, so more macro base stations need to be deployed. The wired backhaul link of traditional macro base stations brings great deployment difficulty and cost to operators, and the flexibility of macro base station deployment is also greatly restricted. Therefore, 3GPP (Third Generation Partnership Project) started research on relay technology in LTE-Advanced. Through the use of relay technology, the coverage of high-speed data rate services and the capacity of cell boundaries can be effectively improved, and problems such as temporary network ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/30H04W36/08
Inventor 曾捷粟欣张琛李泽娇方娜燕肖驰洋
Owner TSINGHUA UNIV
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