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Random access method, device and storage medium of communication device

A communication device and random access technology, applied in the field of communication, can solve problems such as complex interactions, and achieve the effects of improving transmission efficiency, saving signaling overhead, and reducing power consumption

Active Publication Date: 2022-05-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if you want to transmit data at the same time during the random access process, it may involve a fallback mechanism due to network resource shortage or air interface transmission failure. At this time, the interaction between the RRC layer and the MAC layer may be more complicated.

Method used

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  • Random access method, device and storage medium of communication device
  • Random access method, device and storage medium of communication device
  • Random access method, device and storage medium of communication device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0148] image 3 An interactive schematic diagram of Embodiment 1 of the random access method for a communication device provided by the present application, as shown in image 3 As shown in the figure, in this solution, the RRC entity generates an RRC message each time, and whether to initiate early data transmission (EDT for short) in the initial stage, that is, data transmission in the random access process, is determined by the MAC entity. The interaction process is:

[0149] Step 1, the RRC entity generates an RRC message containing the data to be transmitted, and sends the RRC message containing the data to be transmitted to the MAC entity.

[0150] In this application, the information of the interaction between the RRC entity and the MAC entity can be divided into service data and signaling. It should be understood that the data to be transmitted refers to the service data that needs to be carried and uploaded in the RRC message, not the RRC signaling. The information...

Embodiment 2

[0169] Figure 4 An interactive schematic diagram of Embodiment 2 of the random access method for a communication device provided by the present application, as shown in Figure 4 As shown, in this solution, the RRC entity generates two RRC messages at the same time, one of which contains the data to be transmitted, and the other does not contain the data to be transmitted. The data transmission in the random access process is determined by the MAC entity. The specific interaction process of this method for:

[0170] Step 1, the RRC entity generates an RRC message including the data to be transmitted and a conventional RRC message, and sends the RRC message including the data to be transmitted and the conventional RRC message to the MAC entity at the same time.

[0171] In step 2, the MAC entity receives the RRC message containing the data to be transmitted and the traditional RRC message sent by the RRC entity, and can judge whether the data amount corresponding to the cover...

Embodiment 3

[0185] Figure 5 An interactive schematic diagram of Embodiment 3 of the random access method for a communication device provided by the present application, as shown in Figure 5 As shown in the figure, whether to initiate traditional random access or EDT in the initial stage of this solution is determined by the RRC entity. The specific interaction process of this method is as follows:

[0186] Step 1, the RRC entity sends indication information to the MAC entity, indicating that data needs to be transmitted in the random access process.

[0187] In this solution, the meaning of the indication information is different from that in the previous solution. Here, the purpose of sending the indication information to the MAC entity by the RRC entity is to obtain the coverage level. Therefore, the indication information can indicate that the data to be transmitted is transmitted during the random access process. The indication information may also be used to instruct obtaining the...

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Abstract

Embodiments of the present application provide a random access method, device, and storage medium for a communication device. The communication device includes a MAC entity and an RRC entity. The method includes: the RRC entity sends a first RRC message to a lower-layer entity, and the MAC entity receives a message from an upper layer The entity receives a first RRC message, the first RRC message includes data to be transmitted, and if the amount of data supported by the coverage level of the communication device satisfies the size of the first RRC message, the MAC entity determines the first random access An input preamble, the first random access preamble is used to indicate that the first RRC message is sent during the random access process. The MAC entity decides whether to perform early data transmission, and provides a reasonable interaction mechanism, so that the data early transmission process and the traditional random access process can be switched flexibly, which is beneficial to reduce the power consumption and transmission delay of the communication device.

Description

technical field [0001] The present application relates to communication technologies, and in particular, to a random access method, device and storage medium of a communication device. Background technique [0002] Mobile communications have profoundly changed people's lives, but people's pursuit of higher-performance mobile communications has never stopped. In order to cope with the explosive growth of mobile data traffic in the future, massive device connections, and various new services and application scenarios that are emerging, such as: 4th Generation (4G) mobile communications, 5th Generation (5th-Generation, 5G) The mobile communication system will emerge as the times require. As an integral part of 5G, the market demand for IoT is growing rapidly. [0003] At present, the 3rd Generation Partnership Project (3GPP) standard has been based on cellular networks, and solutions have been proposed for the characteristics of the Internet of Things, such as cellular-based ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/04
CPCH04W74/0833Y02D30/70H04W72/52
Inventor 单宝堃王宏奥黛尔.罗林杰布莱恩.亚历山大.马丁
Owner HUAWEI TECH CO LTD
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