Ascending precoding indication information descending feedback method, device, feedback system and receiving device

A technology of precoding indication and indication information, which is applied in the direction of preventing/detecting errors through diversity reception and using the return channel for error prevention/detection.

Inactive Publication Date: 2012-07-18
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Otherwise, uplink closed-loop transmit diversity cannot be realized

Method used

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  • Ascending precoding indication information descending feedback method, device, feedback system and receiving device
  • Ascending precoding indication information descending feedback method, device, feedback system and receiving device
  • Ascending precoding indication information descending feedback method, device, feedback system and receiving device

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Embodiment Construction

[0051] The basic idea of ​​the embodiment of the present invention is, by setting the E-PCICH carrying the uplink diversity precoding indication information; assigning the E-PCICH for each uplink diversity precoding indication information of the UE, and indicating the channel corresponding to each E-PCICH code and signature sequence index, so that the UE can realize the feedback of uplink diversity precoding indication information.

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0053] In view of the technical problems involved in the aforementioned background technology, it is necessary to determine an appropriate feedback channel for carrying feedback weight information, and design the channel time slot format and transmission mode of the channel according to the number of bits fed...

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Abstract

The invention discloses an ascending precoding indication information descending feedback method, which is characterized in that E-PCICHs (Enhanced Common Pilot Channels) for bearing ascending diversity precoding indicating information are arranged. The ascending precoding indication information descending feedback method comprises the following steps: network equipment respectively distributes one E-PCICH for each ascending diversity precoding indication information bit of UE (User Equipment) and indicating a channel code and feature code sequence index corresponding to the E-PCICH; the network equipment feeds back the ascending diversity precoding indicating information according to the indication of the channel code and feature code sequence index; and the UE receives the ascending diversity precoding indication information according to the indication of the channel code and feature code sequence index. The invention simultaneously discloses an ascending precoding indication information descending feedback device, a system and a receiving device for realizing the method. According to the invention, by effectively utilizing the existing channel design format, E-PCICHs of a plurality of UE and E-RGCHs (Enhanced Relative Grant Channels) share 40 feature codes of one channel code, so that the change of the existing protocol and the system is smaller.

Description

technical field [0001] The present invention relates to a downlink feedback technology of uplink diversity precoding indication information, in particular to a downlink feedback method, device and feedback of uplink diversity precoding indication information in a High Speed ​​Uplink Packet Access (HSUPA, High Speed ​​Uplink Packet Access) system systems and receivers. Background technique [0002] High Speed ​​Uplink Packet Access (HSUPA, High Speed ​​Uplink Packet Access) is an enhanced technology introduced in 3GPP Release 6, which aims to increase the transmission rate of the uplink, and is a solution to Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access) ) Enhancement and expansion of uplink transmission performance of the system. HSUPA improves the transmission performance of the uplink system by introducing HARQ (Hybrid Automatic Repeat Request), NodeB-based uplink scheduling and simpler multi-code transmission than the previous vers...

Claims

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Application Information

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IPC IPC(8): H04L1/06H04L1/16
Inventor刘俊强杨光刘淑慧常永宇
OwnerZTE CORP