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The resource allocation method of tti bundling in lte system

A resource allocation and physical resource technology, applied in the field of physical resource allocation, can solve the problems of low uplink rate and poor channel quality of users

Active Publication Date: 2016-09-28
WUHAN POST & TELECOMM RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the LTE system, when the user is at the edge of the cell, due to the poor channel quality, the user's uplink transmission power is limited to the limit, so that the user's uplink rate at the cell edge is very low

Method used

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  • The resource allocation method of tti bundling in lte system
  • The resource allocation method of tti bundling in lte system
  • The resource allocation method of tti bundling in lte system

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Embodiment Construction

[0064] The present invention divides uplink physical resources from frequency bands by limiting respective resource allocation ranges, thereby solving resource allocation conflicts caused by inconsistency of respective occupied times during resource allocation. In conjunction with the accompanying drawings, the specific description of the embodiments of the present invention is provided as follows.

[0065] During the specific implementation, software technology can be used to realize the automatic operation of the technical solution. see figure 1 , the embodiment of the present invention solves the resource allocation problem of TTI Bundling by determining the occupancy range of each resource requester on the frequency band, including the following steps:

[0066] Step 101, during cell configuration or reconfiguration, obtain cell bandwidth, PUCCH and PRACH related configuration information.

[0067] Embodiment Obtaining cell bandwidth during cell configuration or reconfigu...

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Abstract

A resource allocation method for TTI bundling in an LTE system, comprising: step 1, in cell configuration or reconfiguration, acquiring cell bandwidth and related configuration information of PUCCH and PRACH; step 2, calculating physical resources of PUCCH and PRACH according to the configuration information Position; Step 3, determine the maximum number of RBs that MSG3 can occupy according to the cell bandwidth; Step 4, calculate the resource allocation range of MSG3 and TTI Bundling users in the scheduling process; Step 5, perform MSG3 and TTI Bundling in scheduling according to the result in step 4. RB allocation for TTI Bundling users. The present invention divides the uplink physical resources from the frequency band by limiting the respective resource allocation ranges, thereby solving the resource allocation conflict caused by the inconsistent time occupied by the respective resources during resource allocation, and simplifying the resource allocation in the scheduling process. process.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a physical resource allocation method for ensuring TTI bundling (uplink subframe bundling) in an LTE (Long Term Evolution, long-term evolution system) system. Background technique [0002] In the LTE system, when a user is at the edge of a cell, due to poor channel quality, the user's uplink transmission power is limited to a limited extent, so that the uplink rate of the user at the cell edge is very low. In order to solve this problem, the LTE system adopts a method of bundling uplink subframes with TTI Bundling to allocate the same physical TTI (Transmission Time Interval, transmission time interval, in the LTE system, a TTI is 1 millisecond) to edge users. resources, allowing the user to send the same uplink data with different redundancy versions (versions 0, 2, 3, 1) in four consecutive TTIs, and the base station uses different redundancy versions when demodulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
Inventor 颜志凌舒刚张艳欢
Owner WUHAN POST & TELECOMM RES INST CO LTD
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