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System information transmission method, device and system

A technology of system information and transmission method, which is applied in the field of system information transmission method, equipment and system, and can solve the problems of system information time extension and increase of system information receiving delay, etc.

Pending Publication Date: 2021-10-22
HUAWEI TECH CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] However, the time delay for receiving system information using the above scheme is long. In particular, when the terminal device fails to receive SIB1, it needs to wait for the next cycle to receive SIB1 again, and then receive system information according to DCI after SIB1 is successfully received, which further increases the system message reception delay

Method used

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  • System information transmission method, device and system
  • System information transmission method, device and system
  • System information transmission method, device and system

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Embodiment Construction

[0065] In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction of relevant technologies or terms of the present application is given as follows.

[0066] First, a radio resource control (radio resource control, RRC) state.

[0067] Taking the new radio (NR) system as an example, in NR, the RRC state of the terminal device includes the following three states: RRC connected state (RRC_CONNECTED), RRC inactive state (RRC_INACTIVE) and RRC idle state (RRC_IDLE), Three state transitions such as figure 1 shown.

[0068] Among them, when the terminal device is in the RRC connection state, the terminal device has established a connection with the access network device and the core network device, and when there is data arriving on the network, it can be directly transmitted to the terminal device; when the terminal device is in the RRC deactivated state , the link between the terminal device and the access n...

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Abstract

The embodiment of the invention provides a system information transmission method, device and system. The method comprises the following steps that: a network device instructs a terminal device to receive first system information and sends configuration information for transmission of the first system information to the terminal device, such as scheduling information of the first system information or time domain position information of the scheduling information of the first system information, therefore, the terminal equipment can receive the first system information according to the configuration information sent by the network equipment when the network equipment indicates the terminal equipment to receive the first system information. Or, when the network device instructs the terminal device to receive the first system information and does not send the configuration information for transmission of the first system information, the terminal device can receive the first system information according to the previously acquired transmission configuration information. Therefore, the terminal equipment does not need to receive the SIB1 and then receive the system information according to the SIB1, so that the receiving time delay of the system information is reduced.

Description

technical field [0001] The present application relates to the communication field, in particular to a system information transmission method, device and system. Background technique [0002] In a mobile communication network, the paging of the terminal equipment by the network is generally divided into two types, one is used to notify the terminal equipment to perform random access, so that the terminal equipment enters the radio resource control (radio resource control, RRC) connection state, so that subsequent Perform data communication; the other is used to notify the terminal device to receive system information (system information, SI) through a short message. [0003] At present, when a terminal device determines to receive system information, it first receives a system information block (SIB) 1, and then obtains scheduling information of downlink control information (DCI) from SIB1, and then obtains according to the scheduling information of the DCI. DCI, finally rec...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/12H04W76/27H04L1/00
CPCH04L1/0061H04W76/27H04W72/23H04W72/04H04L1/00H04W72/12Y02D30/70
Inventor 温容慧余政王俊伟
Owner HUAWEI TECH CO LTD
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