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Method and device for determining physical cell identity

A technology of physical cell identification and determination method, applied in electrical components, wireless communication, network planning, etc., can solve problems such as unreasonable PCI selection, and achieve the effect of solving unreasonable PCI selection

Active Publication Date: 2016-01-27
CHINA MOBILE GROUP DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] An embodiment of the present invention provides a method for determining a physical cell identifier, which is used to solve the problem in the prior art that PCI planning based on uncertain data leads to unreasonable PCI selection

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  • Method and device for determining physical cell identity
  • Method and device for determining physical cell identity
  • Method and device for determining physical cell identity

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Embodiment Construction

[0017] Aiming at the problem of unreasonable PCI planning in the prior art, the embodiment of the present invention proposes a PCI determination scheme to solve the problem.

[0018] In the determination scheme of PCI provided by the embodiment of the present invention, under the no-load state based on the current PCI, the no-load RSRP of the cell and the no-load RSRP of other cells received by the cell (that is, each no-load interference of the cell) are obtained respectively. RSRP), and obtain the two-way total traffic of the cell and the load RSRP of the cell in the load state in the measurement report, and the cell receives the load RSRP of each adjacent cell, (that is, each load of the cell interferes with the RSRP) ; and according to the obtained two-way total traffic of the cell, the cell load RSRP, and the load interference RSRP of the cell, carry out weighting processing on the cell no-load RSRP and each no-load interference RSRP of the cell, and judge that after the w...

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Abstract

The invention discloses a method and device for determining a physical cellular identification. According to the method, total bidirectional telephone traffic of a cell, load reference signal receiving power (RSRP) of the cell in a measurement report and load RSRP, which is received by the cell, of adjacent cells are loaded to no-load RSRP of the cell and no-load RSRP, which is received by the cell, of all the adjacent cells in a weighting mode to obtain the RSRP of the cell and all interference RSRP of the cell, wherein the RSRP of the cell and the interference RSRP of the cell are weighted and reflect the actual load and network operation conditions of the cell. PCI selection is conducted under the situation that the RSRP of the cell and the interference RSRP of the cell meet predetermined adjustment conditions according to judgment after the RSRP of the cell and the interference RSRP of the cell are weighted. By means of the method and device for determining the physical cellular identification, the network no-load conditions, the actual traffic load conditions of the cell and the actual network operation conditions can be combined for PCI planning and selection, and the problem that the PCI selection is unreasonable due to the fact that PCI planning is conducted according to uncertain data in the prior art can be solved.

Description

technical field [0001] The present invention relates to a mobile communication system, in particular to a method and device for determining a physical cell identifier. Background technique [0002] A Physical Cell Identifier (Physical Cell Identifier, PCI) is an important identifier of a cell in a wireless network in a Long Term Evolution (Long Term Evolution, LTE) system, and is also a unique identifier for a terminal to distinguish a cell and report a measurement. PCI planning is a very important link in LTE system wireless network planning and LTE system wireless network construction. Rationally allocating and using the PCI of the LTE system can reduce interference, improve system resource utilization, and improve overall network quality. At present, the number of PCIs in the LTE system is only 504, and they are only divided into 168 groups. In the case of large-scale networking, it is difficult to meet the actual network requirements without multiplexing. In the case o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/18
Inventor 孙浩李楠董江波陈燕雷刘娜韩云波刘玮高鹏
Owner CHINA MOBILE GROUP DESIGN INST
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