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Subframe configuration method and device

A technology of subframe configuration and frame configuration, applied in the field of communication, can solve the problem that the receiving end cannot receive public information correctly, interference, etc.

Active Publication Date: 2017-11-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a subframe configuration method and device to at least solve the problem of "the information transmission directions of different terminal devices in the same subframe are opposite" As a result, the public information transmitted by one of the terminal devices in this subframe will be interfered by information in the opposite direction transmitted by other terminal devices in this subframe, and the receiving end (network device or terminal device) cannot receive it correctly. The common information, and thus the problem of not being able to work with the common information transmitted in the subframe

Method used

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Embodiment Construction

[0041] The structural diagram of a frame (that is, a wireless frame) is as follows figure 1 As shown, the length of a frame is 10 ms (milliseconds), which is composed of two half frames of 5 ms, each half frame is composed of five subframes of 1 ms, and each subframe is composed of two time slots. Generally, if a symbol includes an extended cyclic prefix (CP), each slot includes 6 symbols; if a symbol includes a regular CP, each slot includes 7 symbols.

[0042] The subframe type may include: an uplink subframe type (represented as "U"), a downlink subframe type (represented as "D"), and a special subframe type (represented as "S"). Among them, the type of uplink subframe refers to the type of subframe used to transmit uplink information, the type of downlink subframe refers to the type of subframe used to transmit downlink information, and the type of special subframe refers to the type of subframe used to transmit uplink information and downlink information. Types of. Spec...

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Abstract

The invention discloses a subframe configuration method and device, and relates to the technical field of communication. The subframe configuration method and device are used for at least solving the problem that public information which is transmitted by one terminal device in a subframe can be disturbed by information which is transmitted by other terminal devices in the subframe in the opposite direction. The method comprises the steps that a network device sends subframe configuration information to at least two terminal devices, wherein the subframe configuration information carries the subframe type of the first part of subframes in a target frame and is used for indicating the terminal devices to configure the subframe type of the first part of subframes in the target frame, so that the terminal devices conduct information transmission in the same direction in any one subframe of the first part of subframes in the target frame, the same direction comprises at least one of the uplink direction and the downlink direction, the first part of subframes represent subframes at the specified positions in the frame, and the first part of subframes in the target frame are used for transmitting the public information.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a subframe configuration method and device. Background technique [0002] Time division duplexing (time division duplexing, TDD) is a duplex communication technology in a mobile communication system. In the TDD system, uplink and downlink information are transmitted at different times on the same frequency channel (ie carrier), and uplink channels and downlink channels are distinguished by time. [0003] With the expansion of service scope and improvement of service flexibility, the communication system needs to support the transmission of more types of service data, which requires the communication system to be able to flexibly set uplink and downlink subframes, so as to flexibly transmit uplink and downlink information. The TDD mode supports flexible configuration of uplink and downlink subframes. In TDD mode, each subframe in a frame can be set as any ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/00
CPCH04L5/0055H04L5/0057H04W72/0446H04W72/23H04B7/2656H04W56/00H04L5/14H04W74/00H04W74/0833
Inventor 栗忠峰曹永照
Owner HUAWEI TECH CO LTD
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