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Information sending method and device, base station and storage medium

A technology for information transmission and base station, which is applied in the field of communication and can solve the problems of random access failure of user equipment and base station, inaccurate judgment, and inconsistent search space between user equipment and base station.

Active Publication Date: 2020-05-15
BEIJING XIAOMI PINECONE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the channel quality is not good, the judgment based on the received power will be inaccurate, which may cause the search space of the user equipment and the base station to be inconsistent, and cause the random access of the user equipment and the base station to fail

Method used

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  • Information sending method and device, base station and storage medium
  • Information sending method and device, base station and storage medium
  • Information sending method and device, base station and storage medium

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Embodiment Construction

[0045] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0046] When the user equipment in the Narrow Band Internet of Things (NB-IoT) NB-IoT needs to apply for uplink resources, it will trigger the random access process with the temporary identification of the wireless network of the cell. In this random access process, the transmission of downlink control information (Downlink Control Information, DCI) involves two search spaces, one is the common search space (common search space, CSS) used in the random access process, and the other is A dedicated search space (UE-specific search space, USS) for the connected state (random access is completed). When the user equipment successfully decodes the downlink control ...

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Abstract

The invention relates to an information sending method and device, a base station and a storage medium, and aims to improve the probability of successful random access of the base station and user equipment. The information sending method comprises the steps of in the process of random access between the base station and user equipment, when the base station does not receive a random access establishment message sent by the user equipment, selecting a target search space from a public search space and a proprietary search space; and sending downlink control information to the user equipment through the target search space.

Description

technical field [0001] The present disclosure relates to the technical field of communications, and in particular, to an information sending method, device, base station, and storage medium. Background technique [0002] The random access process refers to the process from when the user equipment sends a random access preamble and starts trying to access the network to when a basic signaling connection is established with the network. In NB-IoT (Narrow Band Internet of Things, narrowband Internet of Things), when a user equipment needs to apply for an uplink resource, it will trigger a random access process with a cell wireless network temporary identifier. [0003] In this random access process, when the user equipment successfully decodes the downlink control information sent by the base station, the search space of the user equipment is a dedicated search space, and when the user equipment fails to decode the downlink control information sent by the base station, the user...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/00H04W74/08H04L1/16
CPCH04L1/1607H04W74/004H04W74/006H04W74/0833
Inventor 祝文敏
Owner BEIJING XIAOMI PINECONE ELECTRONICS CO LTD
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