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Terminal, network cell equipment, device and method for service transmission on basis of configurable structural frames

A technology of service transmission and configuration structure, applied in the direction of transmission system, digital transmission system, multiple use of transmission path, etc. Waste of transmission resources and other issues

Active Publication Date: 2017-01-25
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current communication method cannot flexibly adapt to various business needs, and will not be able to meet some extreme demands of 5G
For example, the fixed 1ms transmission time length (TTI, Time Transmission Interval) in the current LTE system cannot meet the needs of some extremely low-latency services and wastes resources for the ultra-small packet transmission that appears in the Internet of Things system.

Method used

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  • Terminal, network cell equipment, device and method for service transmission on basis of configurable structural frames
  • Terminal, network cell equipment, device and method for service transmission on basis of configurable structural frames
  • Terminal, network cell equipment, device and method for service transmission on basis of configurable structural frames

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] A frame length is 10ms, including 10 subframes, each subframe length is 1ms, and each subframe contains 7 unit time slots; each unit time slot contains 2 OFDM symbols, and the duration of each OFDM symbol is 66.7us; The subcarrier spacing of the OFDM system is 15KHz;

[0105] The base station divides the users in the system into multiple user sets according to the service characteristics of the users, and the users in each set correspond to a transmission service type. Considering the simultaneous transmission of service type 1 and service type 2 in the system, service type 1 is an ultra-low-latency service, such as intelligent industrial control, virtual reality, etc., and service type 2 is a high-speed download service that is not sensitive to delay, such as ultra-high-definition video Wait. Allocate 2 unit time slots for service type 1 to form a transmission time slot, and allocate 7 unit time slots for service type 2 to form a transmission time slot; service 1 and ...

Embodiment 2

[0110] Consider a frame structure that supports large bandwidth, the system bandwidth can be 100 / 125 / 175 / 250 / 300 / 500MHz, the OFDM subcarrier spacing is 240KHz, and the length of each OFDM symbol is 4.17us. The cyclic prefix (CP) length is 0.79us. It is defined that one unit time slot in this system contains 10 OFDM symbols, and the time length is about 50us. A transmission slot may consist of a variable number of unit slot bundles. The length of one subframe is 1ms, each frame is composed of 10 subframes, and the time length is 10ms.

[0111] The base station divides the users in the system into multiple user sets according to the service characteristics of the users, and the users in each set correspond to a transmission service type. Considering the simultaneous transmission of service type 1 and service type 2 in the system, service type 1 is an ultra-low-latency service, such as intelligent industrial control, virtual reality, etc., and service type 2 is a high-speed dow...

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Abstract

An embodiment of the invention discloses a terminal, network cell equipment, a device and a method for service transmission on the basis of configurable structural frames. The method includes that after receiving a service request from a requester, a service side determines a format of a transmission frame for a request service according to a service type of the request service and informs the requester of the determined format of the transmission frame. The transmission frame comprises a plurality of subframes, each subframe comprises one or more transmission time slots, and each transmission time slot comprises one or more unit time slot, wherein each unit time slot is a minimum time unit in the transmission frame and comprises one or more data symbols, and the unit time slots are identical in fixed duration. The unit time slots in each format of the transmission frame are different in pilot frequency patterns, the pilot frequency patterns of the unit time slots can be adjusted according to lengths of the transmission time slots, and the unit time slot pilot frequency patterns in each transmission time slot can be identical or not.

Description

technical field [0001] The present invention relates to a service transmission technology with a dynamically configurable structured frame, in particular to a service transmission method and device, network element equipment and a terminal based on a configurable structured frame. Background technique [0002] At present, the frame structure in the Long Term Evolution (LTE, Long Term Evoluation) system is fixed. One frame has a long-term length of 10ms and contains 10 subframes, and each subframe has a length of 1ms. Contains 14 OFDM symbols. In the case of an extended CP, one subframe includes 12 OFDM symbols (with a subcarrier spacing of 15 KHz) or 6 OFDM symbols (with a subcarrier spacing of 7.5 KHz). Among them, the subcarrier spacing of 7.5KHz is only used for MBSFN transmission. Based on the above-mentioned fixed frame structure configuration, the pilot configuration in the LTE system is also several fixed configurations, which cannot be changed dynamically according...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/00
CPCH04L5/0048H04W72/0446H04W72/04
Inventor 孙奇韩双锋潘成康易芝玲潘振岗
Owner CHINA MOBILE COMM GRP CO LTD
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