CN108282889A - A method of improving resource utilization in a distributed system - Google Patents

A method of improving resource utilization in a distributed system Download PDF

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Publication number
CN108282889A
CN108282889A CN201710008945.1A CN201710008945A CN108282889A CN 108282889 A CN108282889 A CN 108282889A CN 201710008945 A CN201710008945 A CN 201710008945A CN 108282889 A CN108282889 A CN 108282889A
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CN
China
Prior art keywords
csi
transmission point
neighboring transmission
base station
carries out
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Granted
Application number
CN201710008945.1A
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Chinese (zh)
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CN108282889B (en
Inventor
于小红
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Putian Information Technology Co Ltd
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Putian Information Technology Co Ltd
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Priority to CN201710008945.1A priority Critical patent/CN108282889B/en
Publication of CN108282889A publication Critical patent/CN108282889A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

This application discloses a kind of methods improving resource utilization in a distributed system, including：When base station configures the channel state information reference mark CSI RS resources of transfer point, to the CSI RS resources of neighboring transmission point, zero energy configuration is carried out using part, part carries out the mode of non-zero power configuration；The size of the signal energy for the UE that base station is received according to transfer point judges the transfer point belonging to UE；The size of the signal energy for the UE that base station is received according to neighboring transmission point judges the size that UE is interfered by neighboring transmission point；If neighboring transmission point is more than setting thresholding to the interference of UE, base station is the CSI RS resources that the UE distributes that neighboring transmission point carries out zero energy configuration, otherwise, the CSI RS resources that neighboring transmission point carries out non-zero power configuration is distributed for the UE.It using technical solution disclosed in the present application, can avoid interference, while save CSI RS resources.

Description

A method of improving resource utilization in a distributed system
Technical field
This application involves field of communication technology, more particularly to a kind of side for improving resource utilization in a distributed system Method.
Background technology
In the distributed communication system of certain uses, a usually baseband processing unit (BBU) is drawn with multiple radio frequencies Remote unit (RRU).The downlink data of BBU is sent by multiple RRU, and the data that RRU is received also all submit to BBU processing.Fig. 1 For the schematic diagram of existing distributed communication system.
To improve the transmittability of communication system, the transmission of data is carried out in 5G using extensive antenna, to save resource, Use the measurement that channel state information reference mark (CSI-RS) carries out channel.According to the prior art, in LTE multi-antenna transmissions The CSI-RS of two-port has 20 kinds of patterns, the CSI-RS of four ports to have 10 kinds of patterns, the CSI-RS of 8 ports to have 5 kinds of patterns.
According to the prior art, after a transfer point is configured with CSI-RS resource, in order to avoid interference, the phase of the transfer point Adjacent transfer point can carry out zero energy transmission in corresponding resource location, so that the CSI-RS of neighboring transmission point avoids interference mutually, It will lead to the waste of some resources in this way.
Invention content
This application provides a kind of methods improving resource utilization in a distributed system, to avoid interference, the same to time Save CSI-RS resource.
This application discloses a kind of methods improving resource utilization in a distributed system, including：
When base station configures the channel state information reference mark CSI-RS resource of transfer point, to the CSI-RS of neighboring transmission point Resource carries out zero energy configuration using part, and part carries out the mode of non-zero power configuration；
The size of the signal energy for the UE that base station is received according to transfer point judges the transfer point belonging to UE；
It is big to judge that UE is interfered by neighboring transmission point for the size of the signal energy for the UE that base station is received according to neighboring transmission point It is small；
If neighboring transmission point is more than setting thresholding to the interference of UE, base station is that the UE distributes neighboring transmission point progress zero Otherwise the CSI-RS resource of power configuration distributes the CSI-RS resource that neighboring transmission point carries out non-zero power configuration for the UE.
Preferably, in distributed communication system, the transfer point is radio frequency remote unit RRU.
As seen from the above technical solution, using method provided by the present application, zero power is reduced in distributed communication system The configuration of rate CSI-RS can either avoid interference, and can also save CSI-RS resource.
Description of the drawings
Fig. 1 is the schematic diagram of existing distributed communication system；
Fig. 2 is the schematic diagram that two UE of the present invention adhere to remote RRU separately；
Fig. 3 is the flow chart for the method that the present invention improves resource utilization in a distributed system.
Specific implementation mode
To make the object, technical solution and advantage of the application be more clearly understood, develop simultaneously embodiment referring to the drawings, right The application is described in further detail.
The present invention proposes：It, can be with when each transmission point carries out the configuration of CSI-RS zero energy points in distributed communication system Zero energy configuration is carried out to the positions the CSI-RS part of neighboring transmission point, is partly configured without zero energy.By judging UE phases To the position of transfer point, reasonable disposition CSI-RS can either avoid interference, and can also save resource.
In a distributed system, it can know UE belongs to which RRU's according to the signal energy of each RRU users measured Coverage area.
Assuming that UE1 and UE2 belong to the coverage area of RRU1, as shown in Figure 2.Two CSI-RS configurations are distributed in RRU1, It is expressed as CSI-RS1 and CSI-RS2.When carrying out the configuration of CSI-RS zero energys in RRU2, zero is carried out to the position of CSI-RS1 Power configuration carries out the position of CSI-RS2 the configuration of non-zero power.
In Fig. 2, UE1 and UE2 belong to RRU1, and RRU2 is less than threshold value to the reception power of UE1, so the signal pair of RRU2 Therefore the interference very little of UE1 can distribute CSI-RS2 to UE1, even if RRU2 does not carry out zero energy in the position of CSI-RS2 Distribution, will not influence the channel measurement of UE1.On the other hand, RRU2 is higher than threshold value, this feelings to the reception power of UE2 Illustrate that RRU2 is very big to the interference of UE2 under condition, so in order to avoid interference, needs to distribute CSI-RS1 to UE2, because RRU2 exists The configuration of zero energy has been carried out in the position of CSI-RS1, therefore can avoid the interference to UE2 channel measurements.
It is configured by this CSI-RS zero energys, can both avoid the interference of neighboring transmission point, resource can also be saved.
Present invention could apply to distributed communication systems, such as high ferro, hot zones, marketplace etc..
Fig. 3 is the flow chart for the method that the present invention improves resource utilization in a distributed system, is included the following steps：
Step 1：When base station configures the CSI-RS resource of transfer point, to the CSI-RS resource of neighboring transmission point, using part Zero energy configuration is carried out, part carries out the mode of non-zero power configuration.
Step 2：The size of the signal energy for the UE that base station is received according to transfer point judges the transfer point belonging to UE.
Step 3：The size of the signal energy for the UE that base station is received according to neighboring transmission point judges that UE is dry by neighboring transmission point The size disturbed.
Step 4：If neighboring transmission point is more than setting thresholding to the interference of UE, base station is that the UE distributes neighboring transmission point The CSI-RS resource of zero energy configuration is carried out, otherwise, the CSI-RS that neighboring transmission point carries out non-zero power configuration is distributed for the UE Resource.
In distributed communication system, the transfer point is RRU.
The foregoing is merely the preferred embodiments of the application, not limiting the application, all essences in the application With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of the application protection god.

Claims (2)

1. a kind of method improving resource utilization in a distributed system, which is characterized in that including：
When base station configures the channel state information reference mark CSI-RS resource of transfer point, the CSI-RS of neighboring transmission point is provided Source carries out zero energy configuration using part, and part carries out the mode of non-zero power configuration；
The size of the signal energy for the UE that base station is received according to transfer point judges the transfer point belonging to UE；
The size of the signal energy for the UE that base station is received according to neighboring transmission point judges the size that UE is interfered by neighboring transmission point；
If neighboring transmission point is more than setting thresholding to the interference of UE, base station is that the UE distributes neighboring transmission point progress zero energy Otherwise the CSI-RS resource of configuration distributes the CSI-RS resource that neighboring transmission point carries out non-zero power configuration for the UE.
2. according to the method described in claim 1, it is characterized in that：
In distributed communication system, the transfer point is radio frequency remote unit RRU.
CN201710008945.1A 2017-01-06 2017-01-06 Method for improving resource utilization rate in distributed system Expired - Fee Related CN108282889B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710008945.1A CN108282889B (en) 2017-01-06 2017-01-06 Method for improving resource utilization rate in distributed system

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CN201710008945.1A CN108282889B (en) 2017-01-06 2017-01-06 Method for improving resource utilization rate in distributed system

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CN108282889A true CN108282889A (en) 2018-07-13
CN108282889B CN108282889B (en) 2020-08-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108848524A (en) * 2018-07-20 2018-11-20 徐州海派科技有限公司 Energy consumption appraisal procedure under mobile cloud environment

Citations (3)

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CN103037395A (en) * 2011-09-29 2013-04-10 华为技术有限公司 Method for configuring channel state information-reference signal (CSI-RS) for multiple access points, base station and access points
CN103068046A (en) * 2011-10-18 2013-04-24 中兴通讯股份有限公司 Uplink control information resource distribution method, apparatus and base station thereof
US20150237520A1 (en) * 2011-02-09 2015-08-20 Telefonaktiebolaget L M Ericsson (Publ) Efficient Use of Reference Symbol Resources in a Hierarchical Heterogeneous Cell Deployment

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US20150237520A1 (en) * 2011-02-09 2015-08-20 Telefonaktiebolaget L M Ericsson (Publ) Efficient Use of Reference Symbol Resources in a Hierarchical Heterogeneous Cell Deployment
CN103037395A (en) * 2011-09-29 2013-04-10 华为技术有限公司 Method for configuring channel state information-reference signal (CSI-RS) for multiple access points, base station and access points
CN103068046A (en) * 2011-10-18 2013-04-24 中兴通讯股份有限公司 Uplink control information resource distribution method, apparatus and base station thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108848524A (en) * 2018-07-20 2018-11-20 徐州海派科技有限公司 Energy consumption appraisal procedure under mobile cloud environment

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