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Multi-user multiple input multiple output (MU-MIMO) packet processing method and system for access point (AP)

A grouping processing and multi-user technology, applied in the multi-user multi-input multi-output grouping processing method and system field, can solve the problem that multiple STAs cannot be notified to receive data at the same time, and achieve the effect of saving system resources

Active Publication Date: 2015-06-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a MU-MIMO packet processing method and system of an access point to solve the defect that the AP cannot notify multiple STAs to receive data at the same time when transmitting MU-MIMO data

Method used

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  • Multi-user multiple input multiple output (MU-MIMO) packet processing method and system for access point (AP)
  • Multi-user multiple input multiple output (MU-MIMO) packet processing method and system for access point (AP)
  • Multi-user multiple input multiple output (MU-MIMO) packet processing method and system for access point (AP)

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Embodiment Construction

[0057] Various preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0058] The basic idea of ​​the MU-MIMO packet processing method of the AP of the present invention includes the following steps: the AP (Access Point, access point) sends MU-MIMO group information to all STAs associated with it and supports MU-MIMO, and the MU -The MIMO group information includes the identification information of each group and the member information of each subgroup contained in each group; wherein, each subgroup in the same group contains at least one member STA unique to this subgroup in the same group .

[0059] When the AP wants to send data to multiple member STAs in the same subgroup at the same time, it only needs to use the identification information of the group where the subgroup is located and the subgroup in the same group included in the subgroup through the MAC frame. Just send the MAC address of the mem...

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Abstract

The invention discloses a multi-user multiple input multiple output (MU-MIMO) packet processing method and a MU-MIMO processing system for an access point (AP). The system comprises an information transmitting subsystem and a data transmitting subsystem. The method comprises the following step that: the AP transmits MU-MIMO packet information to all related stations (STA) which support MU-MIMO, wherein the MU-MIMO packet information comprises identification information of every packet and member information of every subgroup included in every packet; and every subgroup in the same packet comprises at least one particular member STA of the subgroup in the same packet. By adopting the method and the system, system resources are saved; and meanwhile, one MAC (Media Access Control) address is adopted, so that the medium occupation right of MU-MIMO data transmission can be reserved by a control frame transmitted in allusion to a single user in an omnibearing way.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a multi-user multi-input multi-output packet processing method and system of an access point. Background technique [0002] In a cellular system (such as an LTE (Long Term Evolution, long-term evolution) system), the MU-MIMO (MultiUser Multiple-Input Multiple-Output, multi-user multiple-input multiple-output) technology that uses spatial multiplexing technology to achieve multi-user transmission can be extremely Greatly improve the spectral efficiency of the system. Taking the LTE system as an example, the system assigns identities to terminals. When sending MU-MIMO data, the control channel XORs the verification information with the terminal identities to implicitly transmit the information of the receiver. When receiving, the terminal uses its terminal identities and The received verification information is XORed again, so that the data sent to it can be demodulated...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/16H04L1/06
Inventor 李峰田开波姜静孙波吕开颖李楠
Owner ZTE CORP