Terminal equipment switching control method, mobile relay node and terminal equipment

A technology for mobile relay and terminal equipment, applied in the field of mobile relay nodes and terminal equipment, can solve the problems of extra consumption of wireless backhaul link air interface resources, increased network load, and heavy network load of mobile relay nodes.

Active Publication Date: 2014-12-03
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the mobile relay node is in a moving state (high-speed rail operation), the terminal equipment switched from the static position needs to be switched to the original macro base station again, resulting in frequent switching and increasing network load
In addition, since the mobile relay node does not have wired backhaul resources, when a terminal device at a static location switches back to the macro base station from the mobile relay node, the wireless backhaul link (backhaul link) of the mobile relay node will also be consumed additionally. ) air interface resource
[0010] To sum up, in the communication system with mobile relay nodes proposed in the prior art, when the terminal equipment switches, the network load of the mobile relay node will be heavy, and frequent switching of terminal equipment will also waste resources.

Method used

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  • Terminal equipment switching control method, mobile relay node and terminal equipment
  • Terminal equipment switching control method, mobile relay node and terminal equipment
  • Terminal equipment switching control method, mobile relay node and terminal equipment

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Experimental program
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Effect test

Embodiment 1

[0034] Embodiment 1 of the present invention proposes a method for controlling switching of terminal equipment in a relay system, such as Figure 3a As shown, on the network side, the specific processing flow is as follows:

[0035] Step 31, determine the current speed value of the mobile relay node.

[0036] The mobile relay node is set on a moving object, and it has two states of operation and rest. Preferably, in the technical solution proposed here in the embodiment of the present invention, a mobile relay node on a high-speed rail is taken as an example for detailed elaboration. Then when the high-speed rail is running, the mobile relay has the same speed value as the high-speed rail. When the high-speed rail enters the station and is at rest, the mobile relay node is also in a static state. At this time, the current speed of the mobile relay node is 0.

[0037] Specifically, the current speed value of the mobile relay node can be determined by using, but not limited t...

Embodiment 2

[0061] Among them, in the heterogeneous network (HetNet) system architecture, there are usually two types of nodes, high-power nodes and low-power nodes. High power nodes such as macro base stations. A low power node (LPN, low power node) may include, but is not limited to, a micro station (pico), a relay node (relay), and the like. The coverage of the signal transmitted by the LPN is small. In order to allow more terminal devices to be connected (offload) to the LPN to play a role in offloading, a cell coverage extension (RE, range extension) technology is proposed. RE specifically means that in the traditional cell selection or reselection process, the terminal device generally selects the cell with the largest Reference Signal Receiving Power (RSRP, Reference Signal Receiving Power) for access. After the range extension technology is proposed, when the terminal equipment performs cell selection or reselection, the terminal equipment adds a bias value (bias) to the RSRP of ...

Embodiment 3

[0086] Embodiment 3 of the present invention Here, a method for controlling switching of terminal equipment in a relay system is proposed, such as Figure 5a As shown, the specific processing flow is as follows:

[0087] Step 51, determine whether there is a mobile relay node in the station that the terminal device can currently connect to, if the judgment result is yes, then execute step 52, otherwise end the process.

[0088] Wherein, the stations that the terminal device can currently connect to include a relay node, a macro base station, a micro station, or a mobile relay node. According to the detected cell physical identifier, determine whether there is a mobile relay node in the site that the terminal device can currently connect to, where the mobile relay node is pre-configured with a reserved cell physical identifier for identifying the mobile relay node; or according to The received relay indication message determines whether there is a mobile relay node in the site...

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Abstract

The invention discloses a terminal equipment switching control method, a mobile relay node and terminal equipment. A problem of a relatively high network load of a mobile relay in terminal equipment switching can be greatly solved, and resource can be saved. The method comprises the steps that a current speed value of the mobile relay node is confirmed; transmitting power of the mobile relay node is adjusted according to the confirmed current speed value; and signal intensity of the mobile relay node is confirmed by the terminal equipment according to transmitting power of the mobile relay node through control according to transmitting power after adjustment, and the terminal equipment is switched between the mobile relay node and a macro base station according to signal intensity of the mobile relay node after confirmation.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for controlling switching of terminal equipment in a relay system, a mobile relay node and terminal equipment. Background technique [0002] In order to cope with various complex wireless propagation environments and solve the coverage problem of future Long Term Evolution (LTE, Long Term Evolution) network deployment, the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) is working on the enhanced Long Term Evolution (LTE-A , Long Term Evolution-Advanced) the relay node (RN, Relay Node) (which can be referred to as relay for short) is standardized in the R10 protocol. By adding a relay node between the macro base station (eNB) and the terminal equipment (UE), the direct transmission link between the macro base station and the terminal equipment is divided into two sections, such as figure 1 As shown in , the wireless l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W36/24H04W36/32
Inventor 闫渊王军程广辉
Owner CHINA MOBILE COMM GRP CO LTD
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