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Method for allocating transmission modes

A technology of transmission mode and configuration method, which is applied in the field of data transmission and can solve problems such as undetermined and unproposed transmission modes

Inactive Publication Date: 2013-01-23
TD TECH COMM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the HS-SCCH does not carry the transmission mode type information, the UE in the MIMO system performing single-stream transmission cannot obtain its own transmission mode through the HS-SCCH without establishing a static mapping relationship between the time slot resource and the transmission mode. Therefore, it is impossible to determine whether the transmission mode determined by the base station is the transmission mode of the non-MIMO system or the transmission mode of the MIMO system
At present, no configuration method of transmission mode that can overcome the above problems has been proposed

Method used

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  • Method for allocating transmission modes

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Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] The main idea of ​​the present invention is that the base station first determines the transmission mode of the scheduled UE in the time slot by judging whether there is a non-MIMO system UE in the current scheduling time slot, that is, when there is a non-MIMO system UE in the time slot, then determine the The transmission mode of the scheduled UE in the slot is the transmission mode in the non-MIMO system. When there is no non-MIMO system UE in the time slot, it is determined that the transmission mode of the scheduled UE in the slot is single-stream or dual-stream in the non-MIMO system. Afterwards, for the MIMO system UE, by monitoring the two sets of HS-SCCH channels allocated by the base station, according to the system preset...

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Abstract

The invention discloses a method for allocating transmission modes, which comprises that: a base station allocates a time slot for user equipment UE currently requesting scheduling; the base station judges whether a non-multi-input multi-output system UE exists in the current transmission time slot allocated to the UE requesting the scheduling, and if so, the transmission mode of the UE is determined to be a non-multi-input multi-output system transmission mode, otherwise, the transmission mode of the UE is determined to be a corresponding MIMO system transmission mode according to the known data stream allocation information; the base station sends a data frame to the UE according to the determined transmission mode; and when the UE is the MIMO system UE, the transmission mode determinedby the base station is determined to be the MIMO system transmission mode or the non MIMO system transmission mode through the number of shift codes of blind training sequences in a training sequencedomain corresponding to the data frame or in the transmission mode corresponding to an HS-SCCH channel. In a TDD MIMO system where the single-stream transmission MIMO system UE and the non MIMO system UE multiplex the same time slot, the single-stream transmission MIMO system UE can determine the transmission mode thereof determined by the base station.

Description

technical field [0001] The invention relates to data transmission technology, in particular to a method for configuring a transmission mode. Background technique [0002] The existing Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system does not support MIMO (Multiple Input Multiple Output) technology, and all downlink time slots use non-MIMO system transmission methods for data transmission. In a time-division multiple-input multiple-output (TDD MIMO) system, the downlink high-speed shared control channel (HS-PDSCH) adopts single-stream or dual-stream transmission, and the user equipment (UE) needs to be configured with two receiving antennas to support downlink MIMO. In this way, The UE can use the single-stream or dual-stream transmission mode of the MIMO system for data transmission. [0003] The transmission mode of the non-MIMO system is different from that of the MIMO system. The main differences between the two are: [0004] In the transmission...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04B7/08H04B7/26
Inventor 范晨杨薇王大飞
Owner TD TECH COMM TECH LTD