KR20170090917A - Enhanced data transmission method for reducing delay time and energy consumption of terminal for transmitting small data in Internet-of-Things environment - Google Patents
Enhanced data transmission method for reducing delay time and energy consumption of terminal for transmitting small data in Internet-of-Things environment Download PDFInfo
- Publication number
- KR20170090917A KR20170090917A KR1020160011893A KR20160011893A KR20170090917A KR 20170090917 A KR20170090917 A KR 20170090917A KR 1020160011893 A KR1020160011893 A KR 1020160011893A KR 20160011893 A KR20160011893 A KR 20160011893A KR 20170090917 A KR20170090917 A KR 20170090917A
- Authority
- KR
- South Korea
- Prior art keywords
- data transmission
- small data
- terminal
- delay time
- energy consumption
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
- H04W28/0221—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices power availability or consumption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
-
- H04W72/042—
-
- Y02B60/50—
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
In the present invention, a transmission protocol that can streamline the operation of a terminal performing Small Data transmission in the IoT environment is provided. In a small data transmission method provided by the present invention, terminals transmitting small data in a cellular based IoT system Delay time and energy consumption can be reduced.
Description
The present invention relates to a technology for providing a data transmission method differentiated according to the data size transmitted by a mobile station in a cellular-based IoT system, and more particularly to a technology for providing a data transmission method in which a delay time and energy consumption of terminals transmitting small data .
In the Internet of Things (IoT) environment, various objects are expected to form a huge interconnected intelligent network by sharing information through wireless communication. In this IoT environment, a large number of terminals generate vast amount of data, and a cellular-based IoT system that provides a reliable connection based on a wide coverage in a license band is getting attention.
Cellular IoT systems are required to accommodate large scale access (massive connection) of low cost / low complexity terminals, improve low power and terminal operation life for network maintenance, and expand service support range by improving coverage. Also, each of the UEs of the cellular based IoT will transmit small data (Small Data) and is expected to operate at a low data rate.
In a cellular-based IoT system, which is currently being standardized, the UE performs synchronization, system information reception, RACH (Random Access Channel), resource allocation information reception, data transmission, and ACK reception for data transmission. However, the terminal transmitting small data has a relatively large overhead for delay time and power consumption due to the received message for small size data transmission. In particular, in case of DCI (Downlink Control Information) transmitted from the network to inform the resource allocation information, there is a problem that it is required to receive for a relatively long time according to the coverage class of each UE.
Accordingly, the present invention simplifies the data transmission / reception process according to data characteristics expected to be transmitted by a cellular-based IoT terminal, and studies a technique for reducing energy consumed in the process.
The present invention provides a simplified data transmission method for reducing delay time and energy consumption of terminals transmitting small data in a cellular-based IoT system.
In the present invention, the base station can broadcast the reference to determine whether it is Small Data in the system information or the DCI, and can define the reference in advance and determine the terminal itself. In addition, the base station can separately configure a RACH channel for a RACH for a small data terminal and a general terminal, and transmits a DCI including resource allocation information for uplink / downlink transmission. Each terminal transmits data of a predetermined size and operates in a sleep mode until data to be transmitted occurs.
The method of supporting Small Data transmission of the present invention is divided into a small data transmission request process and a small data transmission process. The terminal is first powered on and generates data to be transmitted. For data transmission, the terminal first synchronizes with the base station and receives system information. After receiving the system information, the terminal can determine whether or not the small data can be transmitted through comparison with the information displayed on the system information or a predefined value. If Small Data transmission is possible, the terminal performs a Small Data transmission request process.
The present invention provides a transmission protocol that can streamline the operation of a terminal performing Small Data transmission in an IoT environment.
The delay time and the energy consumption of the terminals transmitting Small Data in the cellular based IoT system can be reduced through the Small Data transmission method provided by the present invention.
FIG. 1 is a flowchart illustrating a Small Data transmission request and transmission process according to an embodiment of the present invention.
In FIG. 1, a process of requesting a Small Data transmission is shown. The UE transmits a RA (Random Access) Request message in order to perform a random access, and transmits the RA Request Type or Access Cause of the modified RA Request as 'Small Data Request'. After receiving it, the base station transmits the DCI to inform the resource to transmit the RA Response. In addition, the BS determines whether resource allocation for Small Data transmission is possible to the MS. The availability of Small Data support can be determined through the congestion of RACH resources for Small Data at the time of the request. If the BS can support Small Data transmission, the BS allocates a newly defined SD-RNTI (Small Data Radio Network Temporary Identifier) instead of C-RNTI and transmits an RA Response message.
The MS having allocated the SD-RNTI can efficiently perform data transmission through the Small Data transmission process of the present invention. For small data transmission, the mobile station transmits data including the SD-RNTI to the message to be transmitted when the RACH is performed. The base station receiving the data through the RA Request can transmit the ACK to the corresponding terminal through the subsequent DCI. Thus, it is possible to reduce the transmission delay time and the power consumption from transmitting the uplink data and receiving the DCI again after performing the existing RACH process and acquiring the resources through the DCI reception. This procedure can be performed until the UE can no longer hold the SD-RNTI, and the criterion for expiration of the SD-RNTI can be defined in advance in the network by the number of transmissions of the UE, the amount of transmission (bits) .
Claims (1)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160011893A KR20170090917A (en) | 2016-01-29 | 2016-01-29 | Enhanced data transmission method for reducing delay time and energy consumption of terminal for transmitting small data in Internet-of-Things environment |
| PCT/KR2017/000939 WO2017131459A1 (en) | 2016-01-29 | 2017-01-26 | Random access method considering coverage level and subcarrier spacing configuration and/or multi-tone configuration in internet of things environment |
| CN201780007132.9A CN108476539B (en) | 2016-01-29 | 2017-01-26 | Random access method considering coverage grade and subcarrier spacing configuration and/or multi-frequency configuration in Internet of things environment |
| US15/524,466 US10506605B2 (en) | 2016-01-29 | 2017-01-26 | Random access method considering a coverage level, subcarrier spacing configuration and/or multi-tone configuration in internet of things environment |
| US16/591,704 US11064495B2 (en) | 2016-01-29 | 2019-10-03 | Random access method considering a coverage level, subcarrier spacing configuration and/or multi-tone configuration in internet of things environment |
| US17/342,862 US11805534B2 (en) | 2016-01-29 | 2021-06-09 | Random access method considering a coverage level, subcarrier spacing configuration and/or multi-tone configuration in internet of things environment |
| US18/469,846 US20240008064A1 (en) | 2016-01-29 | 2023-09-19 | Random access method considering a coverage level, subcarrier spacing configuration and/or multi-tone configuration in internet of things environment |
| US18/404,968 US20240147549A1 (en) | 2016-01-29 | 2024-01-05 | Random access method considering a coverage level, subcarrier spacing configuration and/or multi-tone configuration in internet of things environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160011893A KR20170090917A (en) | 2016-01-29 | 2016-01-29 | Enhanced data transmission method for reducing delay time and energy consumption of terminal for transmitting small data in Internet-of-Things environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170090917A true KR20170090917A (en) | 2017-08-08 |
Family
ID=59653019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160011893A KR20170090917A (en) | 2016-01-29 | 2016-01-29 | Enhanced data transmission method for reducing delay time and energy consumption of terminal for transmitting small data in Internet-of-Things environment |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20170090917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109429355A (en) * | 2017-08-23 | 2019-03-05 | 维沃移动通信有限公司 | A kind of processing method of random access, user terminal and network side equipment |
-
2016
- 2016-01-29 KR KR1020160011893A patent/KR20170090917A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109429355A (en) * | 2017-08-23 | 2019-03-05 | 维沃移动通信有限公司 | A kind of processing method of random access, user terminal and network side equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10952138B2 (en) | Machine type communication method, terminal, and base station | |
| CN108702740B (en) | Communication method and communication device | |
| EP3288298B1 (en) | Machine type communication method, base station, and terminal | |
| CN108462998B (en) | Base station, user equipment and method for random access | |
| US10708944B2 (en) | Preconfigured grants with a distribution pattern | |
| US20180013524A1 (en) | Macro cell, small cell and user equipment for mobile communication system | |
| CA3127384C (en) | User-equipment-coordination set for a wireless network using an unlicensed frequency band | |
| US20140194126A1 (en) | Mobile station, base station, and method for managing synchronization state | |
| EP2949172A1 (en) | Fast device discovery for device to device communication | |
| US20210195657A1 (en) | Transport block size for contention free random access in random access procedure | |
| US10652899B2 (en) | Data transmission method and apparatus | |
| JP6513222B2 (en) | Method and apparatus for transmitting device to device (D2D) synchronization signal | |
| CN111096030B (en) | Method, apparatus and computer readable storage medium for unlicensed band communication | |
| CN108834107B (en) | Method and apparatus for sidelink discovery | |
| WO2019128997A1 (en) | Method, device and computer-readable medium for reducing signaling overhead and data latency | |
| EP3498019B1 (en) | Methods and devices for semi-persistent scheduling | |
| CN111800873B (en) | Resource scheduling method, device and system | |
| CN111147193B (en) | Retransmission request method, terminal and network side device for Internet of vehicles | |
| KR20170090917A (en) | Enhanced data transmission method for reducing delay time and energy consumption of terminal for transmitting small data in Internet-of-Things environment | |
| WO2022183406A1 (en) | Method for transmitting data channel, terminal device and network device | |
| CN109391924B (en) | Method, device, and computer readable medium for device-to-device (D2D) communication | |
| CN110178404A (en) | A kind of resource using method, relevant apparatus and system | |
| TW201531133A (en) | Method and apparatus for transmitting an uplink response message | |
| US20170257805A1 (en) | Message transmission method, user equipment, base station, and system | |
| JP7456551B2 (en) | Signal transmission and reception methods, devices and communication systems |