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Method, system and device for indicating transmission mode

A technology of transmission mode and indication message, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., which can solve problems such as system performance loss

Active Publication Date: 2010-06-23
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Embodiments of the present invention provide a method, system, and device for indicating a transmission mode to solve the problem that the existing DCI format in the prior art can only correspond to one transmission mode, so that when the transmission mode is indicated by an indication message, certain limitations, resulting in loss of system performance

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  • Method, system and device for indicating transmission mode
  • Method, system and device for indicating transmission mode
  • Method, system and device for indicating transmission mode

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Embodiment Construction

[0033] In the embodiment of the present invention, the base station generates an indication message containing downlink control information and a transmission mode identifier, and sends the indication message to the terminal, and instructs the terminal to demodulate data in the transmission mode corresponding to the transmission mode identifier through the transmission mode identifier, so that the transmission mode 7 is in any All scenarios can support transmit diversity mode and DRS transmission mode at the same time, which improves the application range and system performance of transmission mode 7.

[0034] Among them, the embodiments of the present invention can be applied to dynamic scheduling and semi-persistent scheduling.

[0035] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1 As shown, the system for indicating a transmission mode in this embodiment of the pre...

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Abstract

The invention relates to a wireless communication technology, in particular to a method, a system and a device for indicating a transmission mode, which is used for solving the problem existing in the prior art that the existing DCI format can only correspond to a transmission mode to cause certain limitations in indicating the transmission mode by indication messages to cause losses on the system performance. The method comprises the following steps: a base station determines the corresponding transmission mode identification of the transmission mode needing to be destined to a terminal according to the pre-set transmission mode and the corresponding relationship of the transmission mode; indication messages containing downlink control information and determined transmission mode identification are generated and are sent to the terminal by a physical-layer downlink control channel to be used for indicating the corresponding transmission mode demodulating data of the transmission mode identification of the terminal. The embodiment of the invention can cause the transmission mode 7 to simultaneously support a transmit diversity mode and a DRS transmission mode in any environment, and increases the application range of the transmission mode 7.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method, system and device for indicating a transmission mode. Background technique [0002] The LTE (Long Term Evolution; long-term evolution) system has designed 7 different transmission modes for PDSCH (Physical Downlink Shared Channel, physical downlink shared channel), which are applied to different service requirements and channel environments. The 7 transmission modes are: [0003] Single-antenna port; port 0 (single antenna port; port 0); Transmit diversity (transmit diversity); Open-loop spatial multiplexing (open-loop spatial multiplexing); Closed-loop spatial multiplexing (closed-loop spatial multiplexing); Multi-user MIMO (multi-user MIMO); Closed-loopRank=1 precoding (closed-loop precoding with rank 1); Single-antenna port; port 5 (single-antenna port; port 5). [0004] Wherein, for the seventh transmission mode, it is further divided into a transmission...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/14H04W28/18
Inventor 潘学明丁昱肖国军
Owner DATANG MOBILE COMM EQUIP CO LTD