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Method and system for obtaining inter-beam interference relationship

A technology of interference relationship and beam, applied in the field of communication, can solve problems such as interference

Active Publication Date: 2018-04-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention provides a method and system for obtaining the inter-beam interference relationship, so as to at least solve the problem of how to suppress the pair of transmit beams of a cell in the environment where complex ground or building scattering / reflection effects exist. Same-frequency and / or adjacent-channel interference between receiving beams of adjacent cells, a problem for which no effective solution has been proposed so far

Method used

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  • Method and system for obtaining inter-beam interference relationship
  • Method and system for obtaining inter-beam interference relationship

Examples

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Embodiment 1

[0091] The method for obtaining the inter-beam interference relationship described in this preferred embodiment is suitable for obtaining the in-band and / or out-of-band interference relationship between the transmitting beam of the neighboring cell and the receiving beam of the own cell in the communication system of the shaped beam, such as Figure 5 As shown, the following steps S502 to S508 are included.

[0092] Step S502, controlling the direction of the main transmit beam of the shaped beam of the adjacent cell, so that the main transmit beam points to different directions in different time intervals to cover different areas in the adjacent cell, and the main transmit beam has one beam in one time interval In the dwell state, at least two beam dwell states form a beam dwell state sequence.

[0093] Step S504, corresponding to the beam dwell state, the array antenna of the local cell receives the transmission signal from the shaped beam and sends the received transmission...

Embodiment 2

[0137] The communication method based on the inter-beam interference relationship described in this preferred embodiment is suitable for suppressing the same-frequency and / or adjacent-frequency interference between beams between cells using shaped beams, and specifically includes: obtaining the main The beam dwell state sequence information of the transmit beam uses the interference relationship between the shaped beam of the local cell and the shaped beam of the adjacent cell to determine whether the main receiving beam pointing sequence corresponding to the beam dwell state in the beam dwell state sequence exists The direction of the weakly interfered main receiving beam, if there is a weakly interfered main receiving beam pointing, then the cell in the weakly interfered The main receiving beam points upward to receive the signal sent by the terminal in the cell.

[0138] The specific method for obtaining the beam dwell state sequence information of the main transmit beam of...

Embodiment 3

[0148] The system for obtaining the inter-beam interference relationship described in this preferred embodiment is suitable for obtaining the in-band and / or out-of-band interference relationship between the transmitting beam of the neighboring cell and the receiving beam of the own cell in the communication system of the shaped beam, such as Figure 7 shown, including:

[0149] The adjacent cell shaped beam transmitting unit 702 includes a group of antenna units and a group of transmission channels corresponding to the antenna units for transmitting the shaped beam;

[0150] The beamforming receiving unit 701 of this cell includes a group of antenna units and a group of receiving channels corresponding to the antenna units, which are used to receive signals transmitted by the shaped beams of neighboring cells in the form of shaped beams;

[0151] The adjacent cell shaped beam transmission control unit 707 is used to control the beam dwell state of the adjacent cell shaped beam...

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Abstract

The invention discloses a method and system for obtaining inter-beam interference relations. The method includes: controlling the main transmitting beam of the shaped beam of the first cell to point to different directions in different time intervals, and the main transmitting beam has a beam station in a time interval. Stay state; corresponding to the beam dwell state, calculate the receiving intensity or power of the electromagnetic radiation of the second cell adjacent to the first cell under the direction of at least one main receiving beam; determine the beam dwelling position of the main transmitting beam according to the receiving intensity or power state and the interference relationship between the main receive beam. The present invention determines the interference relationship between the main transmitting beam of the first cell and the main receiving beam of the second cell in each beam dwell state, and within the weak interference existence time, the cell can receive the cell in the direction of the weakly interfered main receiving beam The signal of the terminal avoids being affected by strong interference, and suppresses the interference of the transmitting beam of the cell to the receiving beam of the neighboring cell in the scattering / reflecting environment of the building.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and system for acquiring interference relationships between beams. Background technique [0002] One of the characteristics of data services is the asymmetry of uplink and downlink. In order to efficiently use spectrum when supporting data services, the wireless access system needs to be able to flexibly coordinate uplink spectrum and downlink spectrum according to the asymmetry of uplink and downlink services. For Time Division Duplex (TDD) wireless access points deployed in isolation, its significant advantage is that uplink and downlink time slots can be flexibly configured. However, when TDD wireless access points or TDD base stations are deployed in continuous coverage In some cases, if the adjacent base stations work on the same frequency, it is required that the adjacent TDD base stations maintain synchronization on the air interface and their respective uplink ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/28
Inventor 刁心玺蓝善福
Owner ZTE CORP
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