CN106330283A - Full duplex networking method for cellular system - Google Patents
Full duplex networking method for cellular system Download PDFInfo
- Publication number
- CN106330283A CN106330283A CN201510359921.1A CN201510359921A CN106330283A CN 106330283 A CN106330283 A CN 106330283A CN 201510359921 A CN201510359921 A CN 201510359921A CN 106330283 A CN106330283 A CN 106330283A
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- CN
- China
- Prior art keywords
- base station
- full duplex
- transmitter
- receiver node
- receiver nodes
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a full duplex networking method for a cellular system and discloses a same-frequency synchronous full duplex networking scheme for a mobile network. The scheme comprises the following steps: dividing a traditional base station into a base station transmitter node and a plurality of base station receiver nodes, distributing the plurality of base station receiver nodes in a cellular cell, and connecting all receiver nodes by using an optical fiber, so that these receiver nodes complete an uplink channel task of the traditional base station together. Each base station receiver node is provided with an antenna array, the arrays inhibit the interference of the adjacent base station via beam zero points thereof, and the array beams of the receiver nodes are overlapped with each other in the space to form coverage of a mobile station without blind spots. The coverage scheme provides a simple and practical method for same-frequency synchronous full duplex networking.
Description
Technical field
The present invention relates to a kind of network-building method supported with frequency full duplex system up channel seamless coverage simultaneously, be specifically related to
One utilizes transceiver to split method, uses antenna array beam manufacturing process, press down with its beam null at receiver node
System carrys out the interference of (many) base stations, and it belongs to wireless communication network field.
Background technology
Frequency spectrum resource in radio communication becomes more and more rare, needs for this to increase substantially spectrum efficiency, and we use
Co-channel full duplex technology is in base station simultaneously, and this technology will become one of spectrum efficiency and power system capacity effective ways.
With frequency simultaneously full duplex technology be a kind of transmitter and receiver making a communication node be operated in same frequency and
On same time slot, for contrast conventional frequency division duplex and time division duplex, with frequency, full duplex technology can be by system bandwidth efficiency simultaneously
Double.
The present invention relates to base station use with frequency full duplex technology simultaneously, needing the problem solved is that base station downlink signal is to up
The interference of channel, it may be assumed that when base station up channel receives the signal from movement station, its receiver receives from base station transmitter
Signal disturbing (also becomes downlink channel signals).In the cellular system, these disturb not only from this base station, and from many
Individual adjacent cell base station.
Although, full duplex technology uses antenna partition method, radio frequency to disappear interference method and base-band digital interference fire-fighting method.
But, eliminate these interference and remain an insoluble problem.
The basic ideas of the present invention are by the method for aerial array, suppress from this base station and each cell base station transmitters
Interference so that base station up channel normally works.
Summary of the invention
Present invention design is applicable to the distributed multi-receiver nodal method of base station up channel: the method is by base station transmitter
Separating with receiver, the signal using distributed multiple receiver node to combine up channel receives task.When receiver saves
When point is away from transmitter, the interference from transmitter increases with distance and reduces.
Another feature of the present invention be on each base station receiver node outfit one aerial array, its Wave beam forming be with
Receiving beam null suppression is criterion from each base station transmitter signal.
Due to certain receiver node as reference, it is understood that there may be some are in the movement station in orientation, base station so that receiver
Node in the interference of suppression base station simultaneously, also inhibits the uplink channel signals from these movement stations.As a example by Fig. 1, Wo Menbiao
Shown two base station transmitters (see: Tx1 and Tx2), the task of base station receiver node (see a Rx2) .RX2 is to connect
Receive from three movement station (see mobile phone 1, mobile phone 2 and mobile phone 3) uplink channel signals.Owing to its beam null is directed at Tx1,
So the signal from mobile phone 2 cannot be received.
Another feature of the present invention is, utilizes multiple base station receiver node being in diverse location so that their ripple
Restraint and form overlapped coverage in space, with the covering blind spot avoiding single base station receiver node to be formed.Such as: as Fig. 2 is arranged
Rx2, it can suppress under Tx1 and Tx2 disturbed condition, receive the signal from mobile phone 2.
It is a feature of the present invention that and propose a kind of new full duplex system, following three key element is combined as a whole by it, it may be assumed that
(1) base station transmitter be placed in base station receiver space different local, (2) utilize receiver antenna array beams zero point to press down
The interference that neighbor base station transmitter processed brings, (3) utilize the method for multi-receiver node overlapped coverage, it is to avoid up channel goes out
Existing coverage hole.
The base station that is applicable to of the present invention uses full duplex technology, and movement station uses full duplex or half-duplex.
The technical scheme that the present invention provides is as follows:
This base station transmitter and adjacent base station transmitter is suppressed to do so that each base station receiver node above-mentioned is formed
The wave beam disturbed receives zero point, and each base station transmitter will provide training sequence.Each receiver node utilizes these training sequences
Form the suppression reception wave beam from base station transmitter interference.After each base station receiver node beam is formed, mobile phone starts to send out
Penetrate signal, and the mobile station signal that each receiver node receives sends into base station up channel, just completes movement station and arrives base station
Signal transmits.
Beneficial effects of the present invention: the system and method that the present invention provides can suppress the transmitter of full duplex base station to dock effectively
The interference that receipts machine brings, thus increase spectrum efficiency and the power system capacity of base station.
Claims (6)
1. a new full duplex base station networking scheme, comprises several base stations in system, they all use full duplex technical communication, and base station uses transmitter and is distributed in multiple receiver node schemes in space.
2. communication system described in, claim protection: each distributed base station receiver node is equipped with aerial array, it receives beam shaping criterion is to suppress from this base station transmitter and neighbour's base station transmitter signal with its zero point.
3. communication system described in; claim is protected: distributed base station receiver node in each suppression from this base station transmitter with under adjacent base station transmitter RST; each Wave beam forming overlapped coverage; to make up the reception signal blind zone occurred due to the interference of suppression base station, it is achieved the seamless coverage of up channel.
4. communication system described in, claim protection: the system that claim 1,2 and 3 is integrated.
5., in the case of claim 1-4, base station transmitter provides the method for training sequence.
6., in the case of claim 1-5, mobile terminal uses half-duplex or full duplex technology to carry out radio communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359921.1A CN106330283A (en) | 2015-06-26 | 2015-06-26 | Full duplex networking method for cellular system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359921.1A CN106330283A (en) | 2015-06-26 | 2015-06-26 | Full duplex networking method for cellular system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106330283A true CN106330283A (en) | 2017-01-11 |
Family
ID=57729341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510359921.1A Pending CN106330283A (en) | 2015-06-26 | 2015-06-26 | Full duplex networking method for cellular system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106330283A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888460A (en) * | 2015-12-16 | 2017-06-23 | 焦秉立 | A kind of arranging network plan for eliminating the interference of full duplex up channel |
| WO2018171025A1 (en) * | 2017-03-21 | 2018-09-27 | 深圳大学 | Mobile networking method and system for minimizing interference |
| CN113692163A (en) * | 2021-08-30 | 2021-11-23 | 重庆鑫杰力科技有限公司 | Airborne data transmission remote measuring receiver based on network operation service |
-
2015
- 2015-06-26 CN CN201510359921.1A patent/CN106330283A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888460A (en) * | 2015-12-16 | 2017-06-23 | 焦秉立 | A kind of arranging network plan for eliminating the interference of full duplex up channel |
| WO2018171025A1 (en) * | 2017-03-21 | 2018-09-27 | 深圳大学 | Mobile networking method and system for minimizing interference |
| US10536214B2 (en) | 2017-03-21 | 2020-01-14 | Shenzhen University | Mobile networking method and system for minimizing interference |
| CN113692163A (en) * | 2021-08-30 | 2021-11-23 | 重庆鑫杰力科技有限公司 | Airborne data transmission remote measuring receiver based on network operation service |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |