Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and device for allocating physical cell identifiers

A technology of physical cell identification and cell, applied in connection management, wireless communication, electrical components, etc., can solve the problems of complex handover process, conflict, difficult network deployment, etc., to avoid PCI conflicts

Active Publication Date: 2019-12-13
CHINA MOBILE COMM GRP CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when these allocation methods are applied to LTE small base stations, due to the characteristics of LTE small base stations, these allocation methods often have PCI conflicts, resulting in difficulties in network deployment, difficulty in obtaining network topology, complex handover process, and difficulty in operation and cost. at least one of these issues

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and device for allocating physical cell identifiers
  • A method and device for allocating physical cell identifiers
  • A method and device for allocating physical cell identifiers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The method for allocating PCI in this embodiment, such as figure 2 shown, including the following steps:

[0058] Step 201: receiving neighbor cell information sent by the small base station;

[0059] Here, the small base station may be an LTE small base station or the like.

[0060] The neighboring cell information may include: frequency point information, PCI and ECGI of neighboring cell base stations.

[0061] Wherein, for frequency point information and PCI, the small base station may obtain it through a cell synchronization channel; for ECGI, the small base station may obtain it through a cell broadcast message.

[0062] Step 202: Using the neighboring cell information, assign a PCI to the small base station.

[0063] Wherein, the PCI allocated for the small base station does not conflict with the PCI of the small base station in the neighboring cell information, and does not conflict with the PCI of a specific neighboring small base station; Other adjacent sm...

Embodiment 2

[0083] In this embodiment, on the basis of Embodiment 1, the process of allocating PCIs for small base stations is described in detail. like image 3 As shown, the process includes the following steps:

[0084] Step 301: After the small base station is turned on, the air interface interception module of the small base station searches for all surrounding cells and obtains information of neighboring cells;

[0085] Here, the neighboring cell information includes: frequency point, PCI and ECGI of the neighboring cell base station. Among them, the small base station obtains the frequency point and PCI of the neighboring cell base station through the cell synchronization channel; obtains the ECGI of the neighboring cell base station through the cell broadcast message.

[0086] Step 302: the small base station sends a PCI allocation request to the network management device of the small base station system;

[0087] Here, the PCI request carries the neighbor cell information acqu...

Embodiment 3

[0103] In order to implement the method of the embodiment of the present invention, this embodiment provides a device for allocating PCI, such as Figure 5 As shown, the device includes: a receiving unit 51 and a distributing unit 52; wherein,

[0104] The receiving unit 51 is configured to receive neighboring cell information sent by the small base station;

[0105] The allocating unit 52 is configured to allocate a PCI for the small base station by using the neighboring cell information; wherein, the PCI allocated for the small base station does not conflict with the PCI of the small base station in the neighboring cell information, and does not conflict with a specific The PCI conflict of the adjacent small base station; the specific adjacent small base station is other adjacent small base stations except the small base station in the neighboring cell of the macro base station; the macro base station is the macro base station in the neighboring cell information.

[0106] H...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method of distributing a physical cell ID (PCI). The method comprises steps: neighborhood information sent by a small cell is received; and by using the neighborhood information, a PCI is distributed for the small cell, wherein the PCI distributed for the small cell does not conflict with the PCI of the small cell in the neighborhood information and does not conflict with PCIs of specific neighbor small cells; the specific neighbor small cells are other neighbor small cells except the small cell in the neighborhood of a large cell; and the large cell is a large cell in the neighborhood information. The invention also discloses a device for distributing the PCI.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method and device for allocating Physical Cell ID (PCI, Physical CellID). Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) small base station (Small Cell, Picocell, or Nanocell) is a miniaturized LTE base station with the characteristics of small size, low transmission power, and easy deployment and installation. It is suitable for homes, venues, and buildings. and other areas to achieve the purpose of hotspot supplementation, coverage blind spot supplementation, and precise coverage. [0003] An LTE small base station must be configured with PCI during deployment. PCI is a key parameter for the physical layer of the LTE base station. It directly determines the cell synchronization sequence and affects the scrambling methods of multiple physical channels. [0004] Existing PCI allocation methods for LTE base stations mainly include: manu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/18H04W24/02H04W76/11
CPCH04W16/18H04W24/02
Inventor 许宁曹汐
Owner CHINA MOBILE COMM GRP CO LTD