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Method and device for determining sub-band indexes

A determination method and a technology for determining indicators, which are applied in the directions of separation devices, access restrictions, and electrical components of transmission paths, and can solve problems such as increasing eNB hardware costs and large storage space.

Inactive Publication Date: 2013-03-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when using the direct table lookup method to determine the subband index, storing the lookup table requires a large storage space, which increases the hardware cost of the eNB

Method used

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  • Method and device for determining sub-band indexes
  • Method and device for determining sub-band indexes
  • Method and device for determining sub-band indexes

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Embodiment Construction

[0043] The implementation flow of the method for determining the band index by adopting the embodiment of the present invention is as follows: figure 1 As shown, the method includes the following steps:

[0044] Step 101: eNB obtains in advance according to the possible values ​​of M and N sequence, and store the resulting sequence as an intermediate value table;

[0045] Among them, the specific generation and storage methods are:

[0046] Substitute the possible values ​​of M and N into in, calculated value, and according to the order of h from small to large, each value calculated when M, N and i take the same value The values ​​of are sorted separately, and each corresponding to different values ​​of M, N and i is obtained. Sequence, store the obtained sequences to obtain the intermediate value table;

[0047] Wherein, i=0, 1, ..., (M-1), h=0, 1, ..., N, N is the number of sub-bands of the downlink system, and M is the number of sub-bands selected by the mobile ...

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Abstract

The present invention discloses a method for determining a subband index, the method comprises: an Evolved Node B (eNB) receives r, calculates a difference between the received r and a formula Œ© N - s i M - i Œª corresponding to each obtained subband index, searches sequences Œ© N - 1 M - i Œª , Œ© N - 2 M - i Œª , €¦ , Œ© 0 M - i Œª in a stored intermediate value table according to the calculated difference to obtain each S i constituting s i i = 0 M - 1 . The present invention further discloses a device for determining a subband index, the device comprises a table generation module, a receiving module and a calculation module. The method and device disclosed in the present invention are capable of reducing the storage space needed for a subband index report.

Description

technical field [0001] The present invention relates to Long Term Evolution (LTE, Long Term Evolution) technology, in particular to a method and device for determining a subband index. Background technique [0002] In the 3rd Generation Partnership Project LTE (3GPP LTE) system, the mobile terminal can use the Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel) to report the Channel Quality Indicator (CQI, Channel Quality Indicator) aperiodically, and the aperiodically report includes Three modes: broadband, mobile terminal selection, high-level configuration, which reporting mode is used by the high-level semi-static configuration. [0003] When reporting the CQI, the mobile terminal first needs to report the combined index related to the subband index of the M subbands selected by itself. When using the mobile terminal selection mode to report CQI, define: [0004] <mfenced open='<' close='>'> x ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W72/04
CPCH04L5/0007H04W72/00
Inventor 萧少宁苏小明
Owner ZTE CORP