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Indicating method and indicating device for MCS (Modulation Coding Scheme) of spatial stream

A technology of indicating device and spatial flow, applied in the direction of digital transmission system, error prevention, electrical components, etc., can solve the problem of inability to indicate MCS and so on

Inactive Publication Date: 2012-07-11
ZTE CORP
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  • Claims
  • Application Information

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Problems solved by technology

When different spatial streams can be transmitted using different MCSs, the optional MCSs will be expanded on the basis of the existing 10 MCSs, and the existing MCS field will not be able to indicate all types of MCSs

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  • Indicating method and indicating device for MCS (Modulation Coding Scheme) of spatial stream
  • Indicating method and indicating device for MCS (Modulation Coding Scheme) of spatial stream
  • Indicating method and indicating device for MCS (Modulation Coding Scheme) of spatial stream

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Embodiment Construction

[0039] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0040] The MCS indication method of a spatial stream provided by the present invention divides a Multiple User Multiple-Input Multiple-Output (MU-MIMO, Multiple User Multiple-Input Multiple-Output) signal into a control information part and a load information part; wherein, the control The information part is further divided into a public control information part and a dedicated control information part. The public control information part is used to indicate the public control information of each user, and the dedicated control information part is used to indicate the respective exclusive control information for each user. The MCS adopted by each user is indicated to the terminal where the user is located by using multiple bits in the control information part.

[0041]Preferably, in the present invention, the public...

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Abstract

The invention discloses an indicating method and an indicating device for a modulation coding scheme (MCS) of a spatial stream. The indicating method comprises the following steps of: dividing a multiple user-multiple input / multiple output (MU-MIMO) signal into a control information part and a loading information part, wherein the control information part comprises a public control information part and a dedicated control information part, the public control information part is used for indicating public control information of each user and the dedicated control information part is used for indicating respective dedicated control information for each user; and the MCS adopted by each user is indicated for a terminal where the user is positioned through the public control information part and / or the dedicated control information part. According to the indicating method and the indicating device, disclosed by the invention, on the premise that the transmission reliability is ensured, data transmission can be carried out by adopting different MCSs through different spatial streams; and in addition, more MCSs can be selected for data transmission.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a coding and modulation scheme (MCS, Modulation Coding Scheme) indication method and device for a spatial stream. Background technique [0002] Wireless local area network (WLAN, Wireless Local Area Networks) is the application of wireless communication technology to interconnect computer equipment to form a network system that can communicate with each other and realize resource sharing. The Institute of Electrical and Electronics Engineers (IEEE) 802.11 is one of the mainstream technologies of wireless local area networks at present. This protocol mainly specifies the physical layer (PHY) and media access control (MAC, Media Access Control) layer specifications. [0003] WLAN has gone through the development process from 802.11 to 802.11b to 802.11a / g, then to 802.11n, and finally to 802.11ac. With the improvement of users' requirements for wireless netw...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/06
Inventor 江岸明姜静孙波田开波
Owner ZTE CORP
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