A system information transmission method and device

A technology of system information and transmission method, which is applied in the field of system information transmission method and device, can solve problems such as high complexity, high power consumption, and inability to obtain base station broadcast system information, so as to reduce power consumption, complexity and power consumption , the effect of reducing signaling overhead

Active Publication Date: 2021-10-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the remote user equipment within the coverage of the cell, the system information broadcast by the base station of the cell can be received through the cellular link between the remote user equipment and the base station, but in this case, the remote user equipment needs to maintain two links road, which are the cellular link and the sidelink (the link between the remote user equipment and the relay user equipment), respectively, with high complexity and high power consumption
For remote user equipment outside the coverage of the cell, it will not be able to obtain the system information broadcast by the base station of the cell

Method used

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  • A system information transmission method and device
  • A system information transmission method and device
  • A system information transmission method and device

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Embodiment Construction

[0048] Embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0049] The system information transmission method provided in the embodiment of the present application can be applied to a communication scenario of direct communication between two devices. The devices for direct communication in the embodiment of the present application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment (User Equipment, UE), mobile station (Mobile station, MS), terminal (Terminal), terminal equipment (Terminal Equipment) and so on. For convenience of description, a device performing direct communication is referred to as a terminal device in the following embodiments of the present application.

[0050] The UE-to-Network relay scenario is a typical applica...

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Abstract

A system information transmission method and device to reduce the complexity and power consumption of system information transmission. The second terminal device sends identification information, and the first terminal device obtains the identification information sent by the second terminal device. The identification information includes the first cell identification, and the first cell identification is before the second terminal device completes the establishment of the direct link with the first terminal device. The cell ID of the cell where the cell resides or the serving cell. If the first terminal device determines that the first cell ID is inconsistent with the second cell ID, it sends a first message to the second terminal device, and the second terminal device receives the first message. The cell ID of the cell where the device resides or the serving cell after the direct link is established, or the cell ID of the cell where the first terminal device resides or the serving cell, the first message is the cell ID of the cell where the first terminal device resides or the serving cell Some or all of the system information in System Information.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a system information transmission method and device. Background technique [0002] The device-to-device (D2D) communication method refers to a communication method in which the sending end directly sends data to the receiving end without transiting through a base station or a cellular network. A special method in the D2D communication method is the UE-to-Network relay scenario. In the UE-to-Network relay scenario, a terminal device (such as user equipment (User Equipment, UE)) passes another terminal with a relay function The equipment is connected to the network, and the former is generally called a remote user equipment (Remote UE), and the latter is called a relay user equipment (Relay UE). [0003] In the UE-to-Network relay scenario, when the remote user equipment newly accesses a cell or the system information of the cell accessed by the remote user ...

Claims

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Application Information

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IPC IPC(8): H04W88/04
CPCH04W4/70H04W8/14H04W52/0209H04W76/23H04W88/04H04W48/08
Inventor 邝奕如徐海博坦尼纳坦·爱德华王键
Owner HUAWEI TECH CO LTD
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