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Methods for notifying and starting multi user MIMO (multi input multi output) and apparatus

A multi-user, start-up module technology, applied in the field of communication, can solve the problems that the base station does not save the multi-user MIMO information, cannot start the multi-user MIMO, etc.

Active Publication Date: 2014-07-16
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method and device for starting multi-user MIMO, so as to solve the problem in the prior art that when the terminal changes from other connected states to the CELL_PCH state, because the base station does not save the multi-user MIMO information of the terminal, it cannot The problem of starting the multi-user MIMO of the user when the terminal changes from the CELL_PCH state to the applicable state of the multi-user MIMO again, for this reason, the embodiment of the present invention adopts the following technical solution:

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  • Methods for notifying and starting multi user MIMO (multi input multi output) and apparatus
  • Methods for notifying and starting multi user MIMO (multi input multi output) and apparatus
  • Methods for notifying and starting multi user MIMO (multi input multi output) and apparatus

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Embodiment Construction

[0033] In view of the above-mentioned problems existing in the prior art, an embodiment of the present invention proposes a technical solution for enabling MU-MIMO (ie, multi-user MIMO). In this technical solution, the RNC notifies the base station of the MU-MIMO information of the terminal, so that when the terminal transfers from the CELL_PCH state to the MU-MIMO applicable state such as CELL_FACH, the base station finds the MU-MIMO information of the terminal through the dedicated terminal identifier, and then the terminal Start MU-MIMO operation synchronously with the base station.

[0034] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] see figure 2 , is a schematic flowchart of starting MU-MIMO during a state transition process provided by an embodiment of the present invention. Such as figure 2 As indicated, the process may include:

[0036] In steps 201-202, when the RNC decides to swi...

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Abstract

The invention discloses methods for notifying and starting multi user MIMO (multi input multi output) and an apparatus in a state transition process. In the methods, before notifying a terminal to transfer to a CELL_PCH (cell paging channel) state, an RNC (radio network controller) sends an NBAP (node B application part) signaling carrying MU-MIMO (multi user multi input multi output) information through an Iub interface to notify a base station, simultaneously the NBAP signaling carries a dedicated identifier of the terminal so as to enable the base station to associate with the MU-MIMO information through the dedicated identifier, thus an MU-MIMO operation on a corresponding terminal is started, simultaneously a terminal side can start an MU-MIMO operation of the terminal according to maintained MU-MIMO information. By employing the methods and the apparatus in the invention, a problem that in the prior art, when the terminal transfers to the CELL_PCH state from other connection states, since the base station does not save the MU-MIMO information of the terminal, thus MU-MIMO of a user can not be started when the terminal transfers to a suitable state of MU-MIMO from the CELL_PCH state again can be solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for starting multi-user MIMO. Background technique [0002] For the UTRAN (Global System for Mobile Communications Terrestrial Radio Access Network) system, the MU-MIMO (Multi User Multi Input Multi Output) feature was introduced in 3GPP Release10. The MU-MIMO technology improves spectrum utilization efficiency by allowing multiple terminals to share the same channelization code and using different midamble shift technologies. Starting the MU-MIMO feature needs to start based on the HS-DSCH (High-Speed ​​Downlink Shared Channel, high-speed downlink shared channel) and E-DCH (Enhanced Dedicated Channel, enhanced dedicated channel) features, that is to say, starting MU-MIMO After the operation, the base station schedules the terminal to send through the control channel, such as HS-SCCH (High-Speed ​​Shared Control Channel, high-speed shared contr...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/02H04W88/08H04W88/12
Inventor 陈东李晓卡严杲
Owner DATANG MOBILE COMM EQUIP CO LTD