A system information transmission method, user terminal and network side equipment

A network-side device and system information technology, applied in the field of communication, can solve problems such as excessive system information overhead

Active Publication Date: 2020-03-20
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a system information transmission method, user terminal and network side equipment, which solves the problem of excessive system information overhead in wireless communication systems

Method used

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  • A system information transmission method, user terminal and network side equipment
  • A system information transmission method, user terminal and network side equipment
  • A system information transmission method, user terminal and network side equipment

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0286] In this example, the process of broadcasting and sending on-demand system information through the random access process in the case of an idle state / inactive UE receiving only the broadcast period of on-demand system information is used as an example. The specific workflow is as follows:

[0287] Step 1. The idle state / inactive UE1 receives the system information periodically broadcasted by the network side equipment, which only includes the broadcast period of the system information on demand.

[0288] Step 2, the system information required by UE1 is SIB3 and SIB4, and the on-demand system information request message is sent through the random access process, that is, the on-demand system information request message is included in the Msg3 of the random access process, which includes The system information list on demand is {SIB3,SIB4}.

[0289] Step 3: The network side device broadcasts and sends an on-demand system information response message when the next on-deman...

example 2

[0292] In this example, the process of broadcasting and sending system information on demand through the uplink signal process under the condition that the idle state / inactive UE receives the existence indication as 0 or does not appear as an example is illustrated. The specific workflow is as follows:

[0293] Step 1. Idle state / inactive UE2 and UE3 receive the system information periodically broadcast by the network side equipment, which includes the broadcast period of the on-demand system information, and receive the presence indication as 0 or no presence indication at the same time. In addition, the network side device sends a mapping table between Preamble and on-demand system information through periodic broadcast of system information, Preamble1 corresponds to SIB3, Preamle2 corresponds to SIB4, and Preamble3 corresponds to SIB5 and SIB6.

[0294] Step 2, the on-demand system information required by UE2 is SIB3 and SIB4, then UE2 sends Preamble1 and Preamble2 to the ne...

example 3

[0298] This example uses an example to illustrate the on-demand system information broadcast sending process when the idle state / inactive UE receives the existence indication as 1 or true. The specific workflow is as follows:

[0299] Step 1. The idle / inactive UE4 receives the system information periodically broadcasted by the network side equipment, which includes the broadcast period of the on-demand system information, and receives the existence indication as 1 or true at the same time.

[0300] Step 2. The network side device broadcasts and sends an on-demand system information response message when the next on-demand system information broadcast period arrives, which includes the available system information of SIB3, SIB4, SIB5 and SIB6. Specifically, the network side device uses the PDCCH scrambled by the SI-RNTI to schedule an on-demand system information response message.

[0301] Step 3. UE4 receives the on-demand system information response message when the next on-d...

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Abstract

Provided are a system information (SI) transmission method, user equipment (UE) and a network side device. The method comprises: the UE acquiring broadcast cycle information of on-demand SI of the network side device; the UE acquiring, according to the broadcast cycle information, the on-demand SI transmitted by the network side device.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a system information transmission method, a user terminal and a network side device. Background technique [0002] The system information (SI, System Information) of the wireless communication system is mainly divided into a master information block (MIB, Master Information Block) and a plurality of system information blocks (SIBs, System Information Blocks), wherein the system information block may include SIB1-SIB20 system message. In practical applications, system information needs to be broadcasted in many scenarios, for example, when the UE newly accesses a cell or the broadcast message changes, the system information will be broadcasted. At present, each broadcast broadcasts all system information, including system information such as MIB, SIB1 and SI, wherein SI includes SIB2-SIB20, and of course, it may continue to expand. Since the system information ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/10H04W48/16
CPCH04W48/10H04W48/16
Inventor 贺媛
Owner DATANG MOBILE COMM EQUIP CO LTD
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