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Logical resource identification distribution method and device

A technology for logical resource and identification allocation, applied in the field of logical resource identification allocation, can solve problems such as no solution yet, conflicts between users, etc., to achieve the effect of avoiding conflicts and efficient reception

Inactive Publication Date: 2015-05-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, different users will transmit different information but use the same logical resource identifier, resulting in conflicts between users
[0011] In order to avoid conflicts in the HARQ (ACK / NACK) information fed back by NodeB to multiple users in MU-MIMO, it is necessary to modify the selection of 80 logical resource identifiers in the existing protocol, but no suitable solution has been proposed yet

Method used

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  • Logical resource identification distribution method and device
  • Logical resource identification distribution method and device
  • Logical resource identification distribution method and device

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Embodiment Construction

[0054] The basic idea of ​​the present invention is: associating the allocation of HICH logical resource identifiers with the E-DCH Midamble code allocation index of MU-MIMO users, and assigning the index M, and slot number t 0 ; or calculate the logical resource identifier by introducing the MU-MIMO user Midamble code allocation index, so as to ensure that different logical resource identifiers are obtained corresponding to different users.

[0055] Here, the Midamble code allocation index M corresponding to the K, Midamble code and channelization code according to the high-level configuration, and the time slot number t 0 Calculating the logical resource identifier is: calculate according to the corresponding formula, and can be grouped. For example, the high-level configuration parameter K divides the 80-bit logical resource identifiers of 80 HICHs into K groups, and each group The 80-bit logical resource identifier of each HICH, and then calculate the logical resource id...

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Abstract

The invention discloses a logical resource identification distribution method. The method comprises the following steps of: distributing indexes M and time slot numbers t0 according to K and Midamble codes of high-layer configuration and Midamble codes corresponding to channelized codes, and calculating logical resource identifications r; and mapping the logical resource identifications r to physical distribution resource identifications r', and performing XOR, bit scrambling and physical channel mapping, modulation and weighted stacking. The invention also discloses the other logical resource identification distribution method and logical resource identification distribution devices corresponding to the two distribution methods at the same time. Through the methods and the devices, a NodeB can accurately feed back acknowledgement / non-acknowledgement (ACK / NACK) information corresponding to the user to each user, and conflict among users is avoided.

Description

technical field [0001] The present invention relates to a logical resource allocation technology in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system, in particular to a logical resource in a Multi-User-Multiple-Input Multiple-Output (MU-MIMO) system of a TD-SCDMA system Identification distribution method and device. Background technique [0002] With the development of the fourth-generation (4G) mobile communication technology, multiple-input multiple-output (MIMO) technology is proposed. Because MIMO technology can increase system capacity, improve transmission performance, and can be well integrated with other physical layer technologies, etc. Features, become the key technology of 4G mobile communication. MIMO includes two modes: Single User Multiple Input Multiple Output (SU-MIMO, Simple User Multiple Input Multiple Output) mode and Multi-User Multiple Input Multiple Output (MU-MIMO, Multiple User Multiple Input Multiple Output) mode. Among t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
Inventor 刘虎杨宁林伟黄河谢琼栾义兵
Owner ZTE CORP