WO2013127310A1 - Procédé et dispositif de coordination d'interférences - Google Patents

Procédé et dispositif de coordination d'interférences Download PDF

Info

Publication number
WO2013127310A1
WO2013127310A1 PCT/CN2013/071726 CN2013071726W WO2013127310A1 WO 2013127310 A1 WO2013127310 A1 WO 2013127310A1 CN 2013071726 W CN2013071726 W CN 2013071726W WO 2013127310 A1 WO2013127310 A1 WO 2013127310A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
base station
radio resource
transmit power
specified
Prior art date
Application number
PCT/CN2013/071726
Other languages
English (en)
Chinese (zh)
Inventor
时洁
柴丽
蔺波
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2013127310A1 publication Critical patent/WO2013127310A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • H04J11/0056—Inter-base station aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning

Definitions

  • Embodiments of the present invention relate to the field of communications and, more particularly, to methods and apparatus for interference coordination. Background technique
  • the carrier frequency band involves two components of the central carrier frequency and the corresponding bandwidth.
  • an evolved Node B eNB
  • eNB evolved Node B
  • the 5MHz bandwidth is further divided into Resource Blocks (RBs), also known as Physical Resource Blocks (PRBs).
  • RBs Resource Blocks
  • PRBs Physical Resource Blocks
  • Each PRB consists of 12 carriers, each of which is typically 15KHz or 7.5KHz.
  • the user equipment (UE) in the cell edge area receives interference from the downlink signal transmitted by the neighboring cell base station on the same frequency domain resource.
  • the radio resources mentioned here are radio resources in the frequency domain.
  • the source eNB sends a Relative Narrowband Tx Power (RNTP) threshold to the target eNB and a relative narrowband transmit power indication corresponding to the PRB.
  • the indication information is bit
  • E - is the ratio of the relatively narrow-band transmit power.
  • the relative narrowband transmit power indication information is 0, that is, the relative narrowband transmit power ratio of PRB1 is less than the relative narrowband transmit power threshold, and the implicit source base station has lower transmit power at PRB1.
  • ⁇ refers to the physical resource block at antenna port p in the foreseeable period of time in the future.
  • Orthogonal Frequency Division Multiplexing (OFDM) symbol does not include the reference signal based on the user equipment physical downlink shared channel (Physical
  • N RB represents the number of downlink resource blocks RB (Resource BLock), and ⁇ identifies the number of subcarriers in one RB.
  • ⁇ / is the bandwidth of the subcarrier.
  • the above definition based on PRB can also be changed based on the definition of new unit radio resources.
  • the corresponding parameter or ratio is also changed to the corresponding value of the radio resource based on the new unit. For example, modify to 0 when n brain, ⁇ RNT p
  • the URB identifies a new Unit Resource Block.
  • w is the number of downlink URBs
  • N sc is the number of subcarriers in a URB.
  • a carrier frequency band may be composed of multiple PRBs. If the RNTP ratio of the source eNB on the PRB does not exceed a predetermined RNTP threshold, the value corresponding to the PRB on the bitmap is 0, otherwise it is 1. "1" implies that the source eNB calls the UE with high power on the PRB, and in general, this also implies that the source eNB uses this PRB to perform scheduling for UEs at the cell edge at a long distance.
  • the target eNB After receiving the information, the target eNB does not send a signal or a low-power transmission signal on the corresponding PRB, or does not perform scheduling on the same frequency domain resource for the UE in its own edge region, so as to avoid the possible source eNB using the corresponding PRB.
  • Downlink interference of the UE of the resource is only applicable to a traditional homogeneous network, that is, a network deployed only by a macro base station (Macro). In a homogeneous network, all base stations are the same size, performance characteristics are similar, and the wireless environment formed by the deployment is similar.
  • a small base station for example, a micro base station Pico
  • Pico is not the same as other homogeneous Macros, and may only occupy a part of the frequency domain resources. Therefore, the existing method of using the same RNTP threshold for all PRBs is no longer suitable for interference. coordination.
  • Embodiments of the present invention provide a method and apparatus for interference coordination, which can solve the problem of co-channel interference in an LTE network deployment scenario.
  • a method for cell interference coordination where: the first base station generates interference coordination information, where the interference coordination information includes RNTP threshold information corresponding to a radio resource of a specified dimension, where the specified dimension includes the following dimensions. At least one of: time, frequency, and space; the first base station sends the interference coordination information to the second base station, so that the second base station determines the interference according to the interference coordination information
  • the interference coordination strategy is to reduce the co-channel interference of the first base station and the second base station on the respective sub-bands.
  • a method for cell interference coordination including: the first base station sends the negotiation request information to the second base station, where the negotiation request information includes the negotiation content, where the negotiation content includes the identifier information of the UE, or the scheduling information, or The storage time of the historical scheduling information, or the length of the historical scheduling information in the time domain or the frequency domain, where the scheduling information or the historical scheduling information includes the SRS information sent by the UE, or the configuration information used by the UE to send the SRS, or the UE is scheduled.
  • Radio resource information the first base station receives the authentication information sent by the second base station, where the authentication information includes the confirmation information that agrees to the negotiation content, or the confirmation information of the negotiation request information, or the modified negotiation content information, or Refuse to give confirmation of the negotiation information.
  • a method for cell interference coordination including: receiving, by a second base station, interference coordination information sent by a first base station, where the interference coordination information includes a radio resource corresponding to a specified dimension.
  • the RNTP threshold information where the specified dimension includes at least one of the following dimensions: time, frequency, or space; the second base station determines an interference coordination policy according to the interference coordination information, to reduce the first base station and the second base station. Interference on the same subband.
  • a method for cell interference coordination including: receiving, by a second base station, negotiation request information sent by a first base station, where the negotiation request information includes a negotiation content, where the negotiation content includes identifier information of the UE, or scheduling information, Or the storage time of the historical scheduling information, or the length of the time domain or the frequency domain of the historical scheduling information, where the scheduling information or the historical scheduling information includes the sounding reference signal SRS sent by the UE, or the configuration information used by the UE to send the SRS, or The radio resource information that is scheduled by the UE; the second base station sends the authentication information to the first base station, where the authentication information includes the confirmation information that agrees to the negotiation content, or the confirmation information of the negotiation request information, or the modified negotiation content. Information, or refusal to give confirmation of the negotiation information.
  • a method for cell interference coordination including: receiving interference coordination information from a first base station, where the interference coordination information includes RNTP threshold information corresponding to a radio resource of a specified dimension, where the specified dimension includes the following At least one of the dimensions: time, frequency or space; forwarding the interference coordination information to the at least one second base station, so that the second base station determines an interference coordination policy according to the interference coordination information, to reduce the first base station and the second The interference of the base station on the same subband.
  • a method for cell interference coordination including: receiving, from a first base station, negotiation request information, where the negotiation request information includes a negotiation content, where the negotiation content includes identifier information of the user equipment UE, or scheduling information, or history.
  • Storage time of scheduling information, or historical scheduling information The length of the time domain or the frequency domain, where the scheduling information or the historical scheduling information includes the sounding reference signal SRS sent by the UE, or the configuration information used by the UE to send the SRS, or the radio resource information scheduled by the UE;
  • the base station forwards the negotiation request information.
  • an apparatus for cell interference coordination including: a generating unit, configured to: generate, by a first base station, interference coordination information, where the interference coordination information includes RNTP threshold information corresponding to a radio resource of a specified dimension, where The specified dimension includes at least one of the following dimensions: time, frequency, or space; the first sending unit is configured to enable the first base station to send the interference coordination information to the second base station, so that the second base station according to the interference coordination information An interference coordination strategy is determined to reduce interference of the first base station and the second base station on the same sub-band.
  • an apparatus for cell interference coordination including: a second sending unit, configured to: send, by a first base station, negotiation request information to a second base station, where the negotiation request information includes a negotiation content, where the negotiation content includes a user equipment
  • the UE sends the configuration information of the SRS, or the radio resource information that is scheduled by the UE
  • the second receiving unit is configured to enable the first base station to receive the authentication information sent by the second base station, where the authentication information includes the confirmation information that agrees to the content of the negotiation. Or, the confirmation information of the negotiation request information, or the modified negotiation content information, or the confirmation information of the negotiation information is rejected.
  • a device for cell interference coordination including: a first receiving unit, configured to enable a second base station to receive interference coordination information sent by a first base station, where the interference coordination information includes a radio resource corresponding to a specified dimension
  • the RNTP threshold information where the specified dimension includes at least one of the following dimensions: a time, a frequency, or a space
  • a determining unit configured to enable the second base station to determine an interference coordination policy according to the interference coordination information, to reduce the first base station Interference with the second base station on the same sub-band.
  • an apparatus for cell interference coordination including: a third receiving unit, configured to: receive, by a second base station, negotiation request information sent by a first base station, where the negotiation request information includes a negotiation content, where the negotiation content includes a user The identifier information of the device, or the scheduling information, or the storage time of the historical scheduling information, or the length of the time domain or the frequency domain of the historical scheduling information, where the scheduling information or the historical scheduling information includes the sounding reference signal SRS sent by the UE, or Configuration information for the UE to send the SRS, or radio resource information scheduled by the UE; a third sending unit, configured to enable the second base The station sends the authentication information to the first base station, where the authentication information includes the confirmation information that agrees to the negotiation content, or the confirmation information of the negotiation request information, or the modified negotiation content information, or the confirmation information of the negotiation information is rejected. .
  • an apparatus for cell interference coordination including: a first switching unit, configured to receive interference coordination information from a first base station, where the interference coordination information includes a RNTP threshold corresponding to a radio resource of a specified dimension Information, where the specified dimension includes at least one of the following dimensions: time, frequency, or space; the first forwarding unit is configured to forward the interference coordination information to the at least one second base station, so that the second base station obtains the interference coordination information according to the interference
  • An interference coordination strategy is determined to reduce interference of the first base station and the second base station on the same sub-band.
  • an apparatus for cell interference coordination including: a second switching unit, configured to receive negotiation request information from a first base station, where the negotiation request information includes a negotiation content, where the negotiation content includes an identifier of the user equipment UE The information, or the scheduling information, or the storage time of the historical scheduling information, or the length of the time domain or the frequency domain of the historical scheduling information, where the scheduling information or the historical scheduling information includes the sounding reference signal SRS sent by the UE, or is used for the UE to send The configuration information of the SRS, or the radio resource information that is scheduled by the UE.
  • the second forwarding unit is configured to forward the negotiation request information to the at least one second base station.
  • the embodiment of the present invention can enable the base station to determine the interference coordination policy according to the interference coordination information sent by the neighboring base station, so as to reduce the interference between the base station and the neighboring base station in the same sub-band, thereby solving the problem of co-channel interference in the LTE network deployment scenario.
  • FIG. 1 is a flowchart of a method for cell interference coordination on a downlink side according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of a method for cell interference coordination on the downlink side according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for cell interference coordination on a downlink side according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a heterogeneous network.
  • FIG. 5 is a schematic structural diagram of a heterogeneous network.
  • FIG. 6 is a flowchart of a method for cell interference coordination on an uplink side according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a method for cell interference coordination on an uplink side according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a method for cell interference coordination on an uplink side according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of a method for cell interference coordination on an uplink side according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of an apparatus for cell interference coordination according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of an apparatus for cell interference coordination according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of an apparatus for cell interference coordination according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of an apparatus for cell interference coordination according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of an apparatus for cell interference coordination according to an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of an apparatus for cell interference coordination according to an embodiment of the present invention.
  • FIG. 16 is a schematic structural diagram of an apparatus for cell interference coordination according to an embodiment of the present invention. detailed description
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • the base station may be a base station in GSM (BTS, Base)
  • the Transceiver Station can also be a base station (NB, NodeB) in WCDMA, an evolved base station (eNB or eNodeB, Evolutional Node B) in LTE, or an access point (AP, Access Point).
  • NB NodeB
  • eNB evolved base station
  • AP Access Point
  • the embodiment of the present invention is applicable to the LTE heterogeneous network deployed by the macro base station and the small base station.
  • the embodiment of the present invention is not limited thereto.
  • the small base station is an RRH (Remote Radio Head)
  • the embodiment of the present invention is also applicable.
  • the embodiments of the present invention can also be applied to a homogeneous network and a heterogeneous network.
  • the first base station generates interference coordination information, where the interference coordination information includes RNTP threshold information corresponding to the radio resource of the specified dimension.
  • the specified dimension may include at least one of the following dimensions: time, frequency, and space, such as time, frequency, space, a combination of time and frequency, a combination of time and space, a combination of frequency and space, or time, frequency, and space.
  • the combination In general, a specified dimension of time is characterized by a specified radio frame or subframe or OFDM symbol, or a specified radio frame or subframe or OFDM symbol within a specified periodic time.
  • the specified dimension of the frequency is characterized as a radio resource block PRB or other frequency band of a specified width.
  • the specified dimension of the space is characterized by the specified direction angle of the base station, or the specified angle of arrival of the base station, or the specified spatial location.
  • the interference coordination information further includes indication bit information, where the indication bit information is used to indicate whether the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension exceeds the RNTP threshold value corresponding to the radio resource of the specified dimension. Or indicating whether the upper limit of the relative narrowband transmit power ratio of the unit radio resource block corresponding to the radio resource of the specified dimension of the first base station is restricted.
  • the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension of the first base station exceeds the RNTP threshold value corresponding to the radio resource of the specified dimension, or the unit radio corresponding to the radio resource of the specified dimension of the first base station
  • the RNTP ratio upper limit of the resource block is not limited, and the value of the bit information is 1; or if the first base station and the radio resource corresponding to the specified dimension are wireless
  • the RNTP ratio of the resource block does not exceed the RNTP threshold corresponding to the radio resource of the specified dimension, and the value of the bit information is 0.
  • the interference coordination information may include multiple RNTP threshold information corresponding to the radio resource of the specified dimension.
  • two or more indication bit information may be considered to represent two or more sets of RNTP threshold information corresponding to radio resources of a specified dimension, and two sets of indication bit information may be considered to reflect two sets. Or two or more sets of RNTP threshold information corresponding to radio resources of a specified dimension.
  • the plurality of sets of indication bit information are used to indicate a comparison result of a relative narrowband transmit power ratio of the unit radio resource block of the first base station and a plurality of the relatively narrowband transmit power threshold values corresponding to the radio resources of the specified dimension
  • the relative narrowband transmit power ratio of the unit radio resource block of the first base station refers to the unit radio corresponding to the radio resource of the specified dimension of the relative narrowband transmit power threshold corresponding to the radio resource of the specified dimension.
  • the relative narrowband transmit power ratio of the resource block For each RNTP threshold corresponding to the radio resource of the specified dimension, there is a bitmap indicating the comparison between the RNTP ratio of the corresponding unit radio resource in the bitmap and the RNTP threshold.
  • the base station transmits multiple RNTP thresholds and corresponding bitmaps to another base station.
  • a set of indication bit information is used to indicate a comparison between a relative narrowband transmit power ratio of a unit radio resource block of the first base station and a relative narrowband transmit power threshold corresponding to the specified radio resource of a specified dimension.
  • the relative narrowband transmit power ratio of the unit radio resource block of the first base station refers to a specified dimension of the relatively narrowband transmit power threshold value corresponding to the designated radio resource of the specified dimension compared with the specified a relative narrowband transmit power ratio of the radio resource corresponding to the radio resource, wherein the specified narrowband transmit power threshold corresponding to the radio resource of the specified dimension is a plurality of the relatively narrowband corresponding to the radio resource of the specified dimension.
  • One of the transmit power thresholds is used to indicate a comparison between a relative narrowband transmit power ratio of a unit radio resource block of the first base station and a relative narrowband transmit power threshold corresponding to the specified radio resource of a specified dimension.
  • the base radio resource block of the base station will only select one wireless with the specified dimension.
  • the RNTP threshold corresponding to the resource is compared, and the RNTP ratio of the unit radio resource of the base station is an RNTP ratio corresponding to the radio resource of the specified dimension of the RNTP threshold corresponding to the radio resource of the specified dimension.
  • the base station transmits a corresponding RNTP threshold information of one bitmap information and or bitmap information to another base station. If multiple bits correspond to the same RNPT threshold information, the base station can use an RNPT threshold information to indicate.
  • the first base station sends interference coordination information to the second base station, so that the second base station determines an interference coordination policy according to the interference coordination information, so as to reduce interference of the first base station and the second base station on the same sub-band.
  • the first base station may also send interference coordination information to the third node, and then the third party node forwards the interference coordination information to the second base station.
  • the third-party node is OAM (Operation Administration and Maintenance) or UE.
  • the second base station receives the interference coordination information sent by the first base station, where the interference coordination information includes RNTP threshold information corresponding to the radio resource of the specified dimension.
  • the specified dimension may include at least one of the following dimensions: time, frequency or space, such as time, frequency, space, combination of time and frequency, combination of time and space, combination of frequency and space, or time, frequency and space The combination.
  • the second base station receives the interference coordination information forwarded by the third-party node, where the interference coordination information is sent by the first base station to a third-party node, such as an OAM or a UE.
  • a third-party node such as an OAM or a UE.
  • the second base station determines an interference coordination policy according to the interference coordination information to reduce interference of the first base station and the second base station on the same sub-band.
  • the second base station determines not to perform scheduling on the subband, or determines to reduce the transmit power on the subband.
  • the second base station determines that scheduling can be performed on the sub-band. Or it is determined that the transmit power on the sub-band can be increased.
  • the interference coordination information includes RNTP threshold information corresponding to a radio resource of a specified dimension, where the specified dimension includes at least one of the following dimensions: time, frequency, or space.
  • the interference coordination information further includes indication bit information, where the indication bit information is used to indicate whether the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension exceeds the RNTP threshold value corresponding to the radio resource of the specified dimension. Or indicating whether the upper limit of the relative narrowband transmit power ratio of the unit radio resource block corresponding to the radio resource of the specified dimension is determined.
  • the method for cell interference coordination according to the foregoing embodiment of the present invention can solve the problem of co-channel interference in a network deployment scenario.
  • the source base station generates interference coordination information characterized by the RNTP threshold value and the bit information, so that the target base station determines the interference coordination policy based on the interference coordination information, so as to reduce the co-channel interference of the first base station and the second base station on each sub-band.
  • a specific embodiment of a method for cell interference coordination according to an embodiment of the present invention applied to a heterogeneous network will be described below. It should be understood that the method of cell interference coordination according to an embodiment of the present invention can also be applied to a homogeneous network.
  • Pico and Macro 1 are deployed in a heterogeneous manner, and Pico only occupies a part of the frequency band in the middle of the corresponding band of Macro.
  • Macrol configures an RNTP threshold for the PRB resource corresponding to Pico, such as ThresholdA.
  • ThresholdA the transmit power of Macrol on the corresponding PRB resource is higher than ThresholdA, the bit information "1" of the corresponding PRB is sent to Pico, otherwise the bit information of the corresponding PRB is sent to Pico.
  • Pico is in the same When scheduling a UE on a frequency domain resource, it is necessary to reduce the power on the PRB whose bit information is "1", avoid co-channel interference, or avoid scheduling the edge UE on the frequency domain resource. Meanwhile, due to the same frequency transmission of Macrol and Macro2 is far away. Macrol sets the RNTP threshold for Macro2, such as ThresholdB, which can be larger. Because Macorl sends high-power signals at this time, the impact on Macro2 is much less than that on Pico. Further, Macrol will be part of the frequency.
  • the separation of the domain resources is not used to schedule the UE, for example, the bandwidth is allocated to the Pico or used for the enhanced physical downlink control channel (ePDCCH), then the transmission power requirement and other resources of Macror on this part of the resources.
  • the transmit power requirements are different, may be low or high, and other frequency domain resources can be pressed
  • the transmit power of a conventional homogeneous network transmits a signal.
  • the power of the source eNB and the target eNB is adjusted, thereby reducing co-channel interference.
  • the source eNB needs to send different RNTP threshold information and bit information corresponding to different PRBs to the target eNB.
  • the source eNB separates the frequency domain resources for use by the Pico, if all the PRBs use the previous RNTP threshold ThresholdB, If the transmit power corresponding to the separated frequency domain resource is lower than ThresholdB, it is based on ThresholdA, which means that the target eNB receives ThresholdB and finds that the bit information on the separated frequency domain resource is less than 0, then High-power transmission on the same radio resource, and the actual RNTP threshold ThresholdA of the actually separated frequency domain resource may be very close to ThresholdB, resulting in high-frequency transmission of high-frequency interference.
  • the Macro separates some of the frequency domain resources and transmits them with high power, if all PRBs use the same RNTP threshold, it will also cause the target eNB's transmit power setting to be incorrect, which will cause co-channel interference.
  • the eNB divides the entire bandwidth into multiple sub-bands, where each sub-band can be in units of PRBs. Or in other widths.
  • the eNB transmits the RNTP threshold corresponding to the subband and the bit information corresponding to the RNTP threshold to the target eNB.
  • the RNTP threshold corresponding to each sub-band in the entire bandwidth may take different values according to the needs of a specific deployment scenario.
  • the entire bandwidth can be part of the downstream frequency band for the target eNB and the source eNB.
  • the target eNB determines whether it can schedule the UE on the corresponding sub-band and the size of the transmit power according to the RNTP threshold value of each sub-band and the corresponding bit information.
  • the source eNB sends different RNTP thresholds corresponding to the PRB and bit information corresponding to the RNTP threshold to the target eNB, so that the target eNB according to the real RNTP threshold of each PRB and the transmit power and the RNTP.
  • the bit information corresponding to the threshold value determines its own transmit power, so that the UE is scheduled with reasonable power and radio resources to avoid downlink co-channel interference.
  • the source eNB may transmit the RNTP threshold value and the bit information corresponding to the entire bandwidth PRB to the target eNB, or the source eNB may transmit each RNTP threshold value and bit information corresponding to each set of RNTP threshold values to the target eNB. .
  • the PRB herein may also be changed to other information capable of identifying a frequency band, or other granularity of frequency domain resources.
  • the radio resource may include information in both frequency and time, and thus the interaction of the interference coordination information may be further extended from the frequency domain to the time domain.
  • a downlink signal is transmitted in units of radio frames, and a radio frame is typically 10 milliseconds (ms), where each lms is one subframe.
  • ms milliseconds
  • Macrol in order to reduce the interference to multiple Picos and ensure the performance of multiple Picos covered by the same frequency of Macrol, Macrol can select low-power in certain subframes within a certain period of time. Send a signal on.
  • the 0th sub-frame transmits the signal according to the power P3 that does not interfere with the Pico3 in the A-point area.
  • the downlink signal sent by Macrol on this sub-frame does not interfere with Pico2 and Picol.
  • Macro 1 can determine the transmit power according to the needs of Pico2 or Picol, and other subframes are not interfered according to point B or point C.
  • the neighbor macro base station Macro2 it is necessary to determine the RNTP parameters used for interference coordination and the radio resources and power used for scheduling according to the RNTP parameters further refined in the time domain.
  • the source eNB sends the transmit power thresholds in different subframes to the target eNB, or the RNTP parameters corresponding to the transmit power thresholds in different subframes (ie, the RNTP thresholds in different subframes) and Whether the RNTP ratio of the unit radio resource block corresponding to the radio resource in the specified time domain is super
  • the target eNB adjusts its scheduling and transmission power of the corresponding subframe in the corresponding radio resource or time.
  • the width of the transmit power on different subframes may be different during a time period T.
  • the interference coordination information can be further refined to the time domain and the frequency domain two-dimensional.
  • the source eNB may send the RNTP threshold corresponding to the radio resource in the specified time domain and the specified frequency domain to the target eNB, or the target eNB according to the RNTP threshold corresponding to the radio resource in the specified time domain and the specified frequency domain, and the designated Whether the RNTP ratio of the unit radio resource block corresponding to the radio resource corresponding to the radio resource in the time domain and the specified frequency domain exceeds the bit information of the RNTP threshold corresponding to the radio resource in the specified time domain and the specified frequency domain is sent to the target eNB.
  • the target eNB determines the interference scheduling policy according to the received interference coordination information: for example, whether to schedule the UE on the corresponding resource, or to schedule the UE with how much power. If the corresponding bit information indicates that the downlink transmit power corresponding to the radio resource in the specified time domain and the specified frequency domain is greater than the RNTP threshold, the target eNB will avoid the same time domain and frequency according to the received interference coordination information. The UE is scheduled on the domain resource, or the UE is scheduled with low power.
  • the interference coordination information may be further refined into the spatial domain.
  • the source eNB may send the RNTP threshold corresponding to the radio resource in the specified time domain and the specified frequency domain and the specified spatial domain to the target eNB, or the source eNB corresponds to the radio resource in the specified time domain and the specified frequency domain and the specified spatial domain.
  • the RNTP threshold value and the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified time domain and the specified frequency domain and the specified spatial domain exceed the RNTP corresponding to the radio resource of the specified time domain and the specified frequency domain and the designated spatial domain.
  • the bit information of the threshold is transmitted to the target eNB.
  • the target eNB will determine the interference scheduling policy based on the received interference coordination information.
  • the target eNB will avoid scheduling UEs on radio resources in the same time domain and frequency domain and spatial domain as much as possible, or scheduling UEs with low power.
  • RNTP information including frequency domain, time domain, spatial domain, or combined downlink transmission power information of multiple dimensions
  • RNTP information are transmitted through the X2 interface between the eNBs.
  • the embodiment of the present invention may further forward, by using the UE, information that needs to be exchanged between two eNBs.
  • the UE when the UE switches from Pico to Macro, or from Macro to Pico, the UE reports the channel quality of the neighboring intra-frequency cell-specific PRB, and the eNB determines to increase or decrease the RNTP threshold. For example, when the UE switches from the Pico edge to the Macro or when the UE switches from the Pico edge to the After the macro, the channel quality (for example, Reference Signal Receiving Power (RSRP) and/or Reference Signal Received Quality (RSRQ)) on different PRBs obtained by the UE measurement may be carried in the handover message.
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Received Quality
  • the reference signal may be a cell-specific refraction signal (CRS), a demodulation reference signal (DMRS), a channel state information-reference signal (CSI-RS), or the like. .
  • CRS cell-specific refraction signal
  • DMRS demodulation reference signal
  • CSI-RS channel state information-reference signal
  • the UE may cause interference to the surrounding base station when transmitting the uplink signal.
  • the interfered base station needs to notify the interference base station of the scheduling information of the interference source (for example, the identification information of the interference UE), or notify the interfered condition (for example, the interfered time domain or frequency domain resource information)
  • the interfering base station is provided so that the interfering base station recognizes the interfering UE.
  • the interfering base station reduces the transmit power of the interfering UE, or schedules the interfering UE to other radio resources to reduce interference to the interfered base station.
  • the two base stations need to coordinate the amount of data that can be stored.
  • the interfering base station can identify the interfering UE by using the stored historical scheduling information, or the interfered radio resource information sent by the interfering base station is within the interfering base station storage data range.
  • the first base station sends the negotiation request information to the second base station, where the negotiation request information includes the negotiation content, where the negotiation content includes the identification information of the UE, or the scheduling information, or the historical scheduling information.
  • Storage time or the length of the time domain or frequency domain of historical scheduling information.
  • the scheduling information or the historical scheduling information includes a Sounding Reference Signal (SRS) sent by the UE, or configuration information used by the UE to send the SRS, or radio resource information scheduled by the UE.
  • SRS Sounding Reference Signal
  • the second base station learns which UEs need to store scheduling information or historical scheduling information.
  • the first base station sends the negotiation request information to the third-party node, and the third-party node forwards the negotiation request information to the second base station.
  • the third-party node may be an OAM or a UE.
  • the negotiation request information may also be sent to the first base station. Therefore, the method for cell interference coordination on the uplink side of the embodiment of the present invention may further include the following steps.
  • the first base station receives the negotiation request information or the authentication information sent by the second base station, where the authentication information includes the confirmation information that agrees to the negotiation content, or the confirmation information of the negotiation request information, or the modified negotiation content information, or the rejection Confirmation information of the negotiation information.
  • the third party node receives the negotiation request information or the authentication information sent by the second base station, and then the third party node forwards the negotiation request information or the authentication information to the first base station.
  • the second base station receives the negotiation request information sent by the first base station, where the negotiation request information includes the negotiation content, where the negotiation content includes the identification information of the UE, or the scheduling information, or the storage time of the historical scheduling information, or the time of the historical scheduling information.
  • the scheduling information or the historical scheduling information includes an SRS sent by the UE, or configuration information used by the UE to send the SRS, or radio resource information scheduled by the UE.
  • the third party node receives the negotiation request information sent by the first base station, and then the third party node forwards the negotiation request information to the second base station.
  • the second base station sends the negotiation request information or the authentication information to the first base station, where the authentication information includes the confirmation information that agrees to the negotiation content, or the confirmation information of the negotiation request information, or the modified negotiation content information, or the rejection Give confirmation of the negotiation information.
  • the second base station sends the negotiation request information or the authentication information to the third-party node, and then the third-party node forwards the negotiation request information or the authentication information to the first base station.
  • the negotiation request information is received from the first base station, where the negotiation request information includes the negotiation content, where the negotiation content includes the identifier information of the UE, or the scheduling information, or the storage time of the historical scheduling information, or the time domain or the frequency domain of the historical scheduling information. length.
  • the scheduling information or the historical scheduling information includes an SRS sent by the UE, or configuration information used by the UE to send the SRS, or radio resource information scheduled by the UE,
  • receiving negotiation request information or authentication information from at least one second base station where the authentication information includes confirmation information agreeing to the negotiation content, or receiving confirmation information of the negotiation request information, or the modified negotiation Content information, or refusal to give confirmation information of the negotiation information;
  • the method for cell interference coordination can solve the problem of co-channel interference in a network deployment scenario.
  • the interference negotiation mechanism is used. Specifically, in order to avoid uplink co-channel interference, the interfered base station records radio resource information of the interference source interference or scheduling information of the dry-wound source. The interfering base station confirms interference with the UE according to the obtained information and the scheduling information of the UE recorded by itself.
  • the serving eNB of the UE needs to negotiate the principle of saving the history scheduling information with the interfering eNB. That is, the two base stations negotiate the principle of saving the historical scheduling information based on the above method.
  • the negotiation content can include:
  • Information about historical scheduling information including the length of scheduling, and frequency domain resources.
  • the length of time may be several radio frames or subframes.
  • the frequency domain resource can be the number of PRBs.
  • the negotiation method may be a request response mode, that is, one party issues information requesting the negotiation content, including the above negotiation content, and the other party gives the authentication information.
  • the authentication information may include, for example, agreeing to the setting of the requesting negotiation content information of the other party, or merely giving the confirmation information of the received message, or feeding back the setting of the requesting negotiation content information of the modified transmitting end.
  • the method of negotiation may also be: one party sends out the information requesting the negotiation content, and asks the other party to give the information of the negotiation content, and after receiving the information, the other party may choose to give the information of the content of the negotiation, or give a refusal to give the negotiation. Information about the content, or giving feedback on the receipt of the information.
  • the method for cell interference coordination according to the foregoing embodiment of the present invention can solve the problem of co-channel interference in uplink and downlink in a network deployment scenario.
  • a schematic structural diagram of an apparatus for cell interference coordination according to an embodiment of the present invention will be described below with reference to FIG. 10 to FIG. As shown in FIG. 10, the apparatus 100 for cell interference coordination includes a generating unit 101 and a first transmitting unit 102.
  • the generating unit 101 is configured to enable the first base station to generate interference coordination information, where the first sending unit 102 is configured to enable the first base station to send the interference coordination information to the second base station, so that the second base station is configured according to the
  • the interference coordination information determines an interference coordination strategy to reduce interference of the first base station and the second base station on the same sub-band.
  • the interference coordination information includes RNTP threshold information corresponding to the radio resource of the specified dimension. Further, the interference coordination information further includes indication bit information.
  • the specified dimension may include at least one of the following dimensions: time, frequency, and space, such as time, frequency, space, a combination of time and frequency, a combination of time and space, a combination of frequency and space, or time, frequency, and space.
  • time, frequency, and space such as time, frequency, space, a combination of time and frequency, a combination of time and space, a combination of frequency and space, or time, frequency, and space.
  • a specified dimension of time is characterized by a specified radio frame or subframe or OFDM symbol, or a specified radio frame or subframe or OFDM symbol within a specified periodic time.
  • the specified dimension of the frequency is characterized by a radio resource block PRB or other frequency band of a specified width.
  • the specified dimension of the space is characterized by the specified direction angle of the base station, or the specified angle of arrival of the base station, or the specified spatial location.
  • the indication bit information is used to indicate whether the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension exceeds the RNTP threshold value corresponding to the radio resource of the specified dimension, or is used to indicate the pair Whether the upper limit of the relative narrowband transmit power ratio of the unit radio resource block corresponding to the radio resource of the specified dimension is limited by the first base station.
  • the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension exceeds the RNTP threshold corresponding to the radio resource of the specified dimension, or the unit radio corresponding to the radio resource of the specified dimension of the first base station
  • the upper limit of the RNTP ratio of the resource block is not limited, and the value of the bit information is 1; or the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension does not exceed the RNTP corresponding to the radio resource of the specified dimension.
  • the threshold value indicates that the value of the bit information is 0.
  • the interference coordination information may include two or more sets of RNTP threshold information corresponding to the radio resource of the specified dimension. So you can consider using two or two More than one indicator bit information is used to represent two or more sets of RNTP threshold information corresponding to radio resources of a specified dimension, and one or more sets of two or more sets of specified dimensions may be considered in one indication bit information. RNTP threshold information corresponding to the radio resource.
  • the multiple sets of indication bit information are used to indicate a comparison result between a relative narrowband transmit power ratio of a unit radio resource block of the first base station and a plurality of the relatively narrowband transmit power threshold values corresponding to the radio resources of the specified dimension,
  • the relative narrowband transmit power ratio of the unit radio resource block of the first base station, and the relative narrowband transmit power ratio of the unit radio resource block corresponding to the radio resource of the specified dimension are used to indicate a comparison result between a relative narrowband transmit power ratio of a unit radio resource block of the first base station and a plurality of the relatively narrowband transmit power threshold values corresponding to the radio resources of the specified dimension.
  • the relative narrowband transmit power ratio of the unit radio resource block of the first base station and the relative narrowband transmit power ratio of the unit radio resource block corresponding to the radio resource of the specified dimension.
  • the set of indication bit information is used to indicate a comparison result between a relative narrowband transmit power ratio of the unit radio resource block of the first base station and a relative narrowband transmit power threshold value corresponding to the designated radio resource of the specified dimension
  • the relative narrowband transmit power ratio of the unit radio resource block of the first base station refers to the specified dimension of the radio resource corresponding to the specified narrowband transmit power threshold corresponding to the radio resource of the specified dimension.
  • a relative narrowband transmit power ratio of the corresponding unit radio resource block, wherein the specified one of the relatively narrowband transmit powers corresponding to the radio resource of the specified dimension is specified.
  • the unit radio resource block of the base station selects only one RNTP threshold corresponding to the radio resource of the specified dimension, and the RNTP ratio of the unit radio resource of the base station is the RNTP gate corresponding to the radio resource of the specified dimension.
  • the base station will send a corresponding RNTP threshold value to each bit map information and or bitmap information. The information is sent to another base station. If multiple bits correspond to the same RNPT threshold information, the base station can use an RNPT threshold information to indicate.
  • the first sending unit 102 is further configured to enable the first base station to send interference coordination information to the third node, and then the third-party node forwards the interference coordination information to the second base station.
  • the third-party node is an OAM or a UE.
  • the apparatus 110 for cell interference coordination as shown in FIG. 11 includes a first receiving unit 111 and a determining unit 112.
  • the first receiving unit 111 may be configured to enable the second base station to receive the interference coordination information sent by the first base station.
  • the first receiving unit 111 is further configured to enable the second base station to receive the interference coordination information forwarded by the third party node, where the interference coordination information is sent by the first base station to the third-party node.
  • the third-party node is an OAM or a UE.
  • the determining unit 112 is configured to enable the second base station to determine an interference coordination policy according to the interference coordination information, so as to reduce co-channel interference of the first base station and the second base station on each sub-band.
  • the determining unit 112 is configured to: when the ReNB ratio of the unit radio resource block corresponding to the radio resource of the specified dimension of the first base station exceeds the RNTP threshold value corresponding to the radio resource of the specified dimension, or to the first base station
  • the upper limit of the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension is not limited, so that the second base station determines not to perform scheduling on the subband, or determines to reduce the transmit power on the subband; when the first base station The RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension does not exceed the RNTP threshold corresponding to the radio resource of the specified dimension, so that the second base station determines that the sub-band can be scheduled on the sub-band, or is determined to be improved.
  • the transmit power on this subband when the ReNB ratio of the unit radio resource block corresponding to the radio resource of the specified dimension of the first base station exceeds the RNTP threshold value corresponding to the radio resource of the specified dimension, or to the first
  • the device 100 for cell interference coordination and the device 110 for cell interference coordination can be set on the same base station.
  • the device 120 for cell interference coordination shown in FIG. 12 includes a second transmitting unit 121 and a second interface. Receive unit 122.
  • the second sending unit 121 is configured to enable the first base station to send the negotiation request information to the second base station, where the negotiation request information includes the negotiation content, where the negotiation content includes the identifier information of the UE, or the scheduling information, or the storage time of the historical scheduling information. Or the length of the time domain or the frequency domain of the historical scheduling information, where the scheduling information or the historical scheduling information includes an SRS sent by the UE, or configuration information used by the UE to send the SRS, or radio resource information scheduled by the UE.
  • the first receiving unit 122 is configured to enable the first base station to receive the negotiation request information or the authentication information sent by the second base station, where the authentication information includes the confirmation information that agrees to the negotiation content, or the confirmation information of the negotiation request information, or the modified negotiation. Content information, or refusal to give confirmation of the negotiation information.
  • the second sending unit 121 is further configured to enable the first base station to send the negotiation request information to the third-party node, and then the third-party node forwards the negotiation request information to the second base station.
  • the second receiving unit 122 is further configured to receive the negotiation request information or the authentication information sent by the second base station from the third-party node, and then forward the negotiation request information or the authentication information to the first base station by the third-party node.
  • the third-party node is an OAM or a UE.
  • the apparatus 130 for cell interference coordination as shown in FIG. 13 includes a third receiving unit 131 and a third transmitting unit 132.
  • the third receiving unit 131 is configured to enable the second base station to receive the negotiation request information sent by the first base station, where the negotiation request information includes the content of the negotiation, where the content of the negotiation includes the identifier information of the UE, or the scheduling information, or the storage time of the historical scheduling information. Or the length of the time domain or the frequency domain of the historical scheduling information, where the scheduling information or the historical scheduling information includes an SRS sent by the UE, or configuration information used by the UE to send the SRS, or radio resource information scheduled by the UE.
  • the third sending unit 132 is configured to enable the second base station to send the negotiation request information or the authentication information to the first base station, where the authentication information includes the confirmation information that agrees to the negotiation content, or the confirmation information of the negotiation request information, or the modified association. Business content information, or refusal to give confirmation information of the negotiation information.
  • the third receiving unit 131 is configured to receive, by the third-party node, the negotiation request information sent by the first base station, and the third-party node forwards the negotiation request information to the second base station.
  • the third sending unit 132 is configured to enable the second base station to send the negotiation request information or the authentication information to the third-party node, and then the third-party node forwards the negotiation request information or the authentication information to the first base station.
  • the third-party node is an OAM or a UE.
  • the cell interference coordination device 120 and the cell interference coordination device 130 can be located on the same base station.
  • the apparatus 140 for cell interference coordination as shown in FIG. 14 includes a first switching unit 141 and a first forwarding unit 142.
  • the first switching unit 141 is configured to receive interference coordination information from the first base station, where the interference coordination information includes RNTP threshold information corresponding to the radio resource of the specified dimension, where the specified dimension includes at least one of the following dimensions: , frequency and space.
  • the interference coordination information further includes indication bit information, where the indication bit information is used to indicate whether the RNTP ratio of the unit radio resource block corresponding to the radio resource of the specified dimension exceeds the radio resource with the specified dimension.
  • Corresponding RNTP threshold value or used to indicate whether the upper limit of the relative narrowband transmit power ratio of the unit radio resource block corresponding to the radio resource corresponding to the specified size of the first base station is limited.
  • the first forwarding unit 142 is configured to forward the interference coordination information to the at least one second base station, so that the second base station determines the interference coordination policy according to the interference coordination information, so as to reduce the interference of the first base station and the second base station on the same sub-band.
  • the device 150 for cell interference coordination as shown in FIG. 15 includes a second switching unit 151 and a second forwarding unit 152.
  • the second switching unit 151 is configured to receive the negotiation request information from the first base station, where the negotiation request information includes the negotiation content, where the content of the negotiation includes the identification information of the UE, or the scheduling information. Or the storage time of the historical scheduling information, or the length of the time domain or the frequency domain of the historical scheduling information, where the scheduling information or the historical scheduling information includes the SRS sent by the UE, or the configuration information used by the UE to send the SRS, or the wireless scheduled by the UE. Resource information.
  • the second forwarding unit 152 is configured to forward the negotiation request information to the at least one second base station. As shown in FIG.
  • the cell interference coordination apparatus 150 further includes a third switching unit 153 and a third forwarding unit 154.
  • the third switching unit 153 is configured to receive negotiation request information or authentication information from the at least one second base station, where the authentication information includes confirmation information that agrees to the content of the negotiation, or confirmation information of the negotiation request information, or modified negotiation. Content information, or refusal to give confirmation of the negotiation information.
  • the third forwarding unit 154 is configured to forward the negotiation request information or the authentication information to the first base station. As the network evolves, the RNTP threshold and the RNTP ratio of the base radio resource block of the base station can be further extended to the control domain or other areas for downlink interference coordination between the eNBs.
  • the source eNB sends a Relative Narrowband Tx Power (RNTP) threshold to the target eNB and a corresponding narrowband transmit power indication information corresponding thereto.
  • the indication information is bit information, which is specifically defined as follows:
  • the source base station transmits a relatively narrowband transmit power indication information forming bitmap corresponding to all PRBs to the target base station. For example, the bitmap (10001%), the first "1" identifies the relative narrowband transmit power of PRB0.
  • the indication information is 1, that is, no upper limit commitment is made to the relative narrowband transmit power ratio of PRB0, and the second "0"
  • ⁇ (" means The physical downlink control channel of the user equipment that does not include the reference signal in the Orthogonal Frequency Division Multiplexing (OFDM) symbol in the physical resource block PRB of the antenna port p in the foreseeable time interval in the future.
  • OFDM Orthogonal Frequency Division Multiplexing
  • PDCCH Downlink Control Channel
  • Enhanced Physical Channel Enhanced Physical
  • « is the maximum output power of the base station, indicating the number of downlink resource blocks RB (Resource BLock), and ⁇ identifies the number of subcarriers in one RB.
  • ⁇ is the bandwidth of the subcarrier.
  • the above definition based on PRB can also be changed based on the definition of new unit radio resources.
  • the corresponding parameter or ratio is also changed to the corresponding value of the radio resource based on the new unit. For example, modify to R NT p
  • the URB identifies a new Unit Resource Block.
  • ⁇ identifies the number of subcarriers in a URB.
  • All of the unit radio resource blocks mentioned in this document, or a description of the unit radio resources, may refer to the PRBs described in the prior art, or may be described based on new definitions.
  • the device for cell interference coordination can solve the problem of co-channel interference in uplink and downlink in a network deployment scenario.
  • the parameters transmitted between the base stations mentioned in the present document including various RNTP thresholds, RNTP ratios of various types of unit radio resources, and negotiation request information, etc., may be information obtained based on the cells, that is, the parameters are dependent. In a specific cell.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or Some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the components displayed by the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif de coordination d'interférences de cellules. Le procédé de coordination d'interférences de cellules comprend les étapes suivantes : un premier Nœud B génère des informations de coordination d'interférences, les informations de coordination d'interférences contenant des informations au sujet d'un seuil de puissance d'émission de bande étroite relatif correspondant à la dimension désignée de ressources sans fil, la dimension désignée contenant au moins une des dimensions suivantes : temps, fréquence ou espace ; et le premier Nœud B envoie les informations de coordination d'interférences à un deuxième Nœud B pour permettre au deuxième Nœud B de déterminer une stratégie de coordination d'interférences d'après les informations de coordination d'interférences, de façon à réduire les interférences entre le premier Nœud B et le deuxième Nœud B sur la même sous-bande. Les modes de réalisation de la présente invention permettent à un Nœud B de déterminer une stratégie de coordination d'interférences d'après les informations de coordination d'interférences émises par un Nœud B adjacent, de façon à réduire les interférences entre le Nœud B et le Nœud B adjacent sur la même sous-bande, ce qui permet de résoudre le problème des interférences de canal commun dans un scénario de déploiement de réseau LTE.
PCT/CN2013/071726 2012-03-01 2013-02-21 Procédé et dispositif de coordination d'interférences WO2013127310A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210052066.6 2012-03-01
CN201210052066.6A CN103297980B (zh) 2012-03-01 2012-03-01 干扰协调的方法和装置

Publications (1)

Publication Number Publication Date
WO2013127310A1 true WO2013127310A1 (fr) 2013-09-06

Family

ID=49081627

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/071726 WO2013127310A1 (fr) 2012-03-01 2013-02-21 Procédé et dispositif de coordination d'interférences

Country Status (2)

Country Link
CN (2) CN106230542B (fr)
WO (1) WO2013127310A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015109441A1 (fr) * 2014-01-21 2015-07-30 Telefonaktiebolaget L M Ericsson (Publ) Procédés et appareils de coordination de la programmation de ressources entre réseaux sans fil
CN104902484A (zh) * 2014-03-04 2015-09-09 中国电信股份有限公司 Lte小区间干扰协调方法与装置
US10004084B2 (en) 2014-01-21 2018-06-19 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for coordinating resource scheduling between wireless networks
US10285064B2 (en) 2014-04-09 2019-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for coordinating resources between different networks
WO2019196952A1 (fr) * 2018-04-13 2019-10-17 电信科学技术研究院有限公司 Procédé et dispositif d'attribution de bwp
CN110383722A (zh) * 2017-01-09 2019-10-25 Lg电子株式会社 报告测量数据的方法及其终端
US12127029B2 (en) 2021-10-25 2024-10-22 Lg Electronics Inc. Method for reporting measurement data, and terminal therefor

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105009667B (zh) * 2013-12-30 2019-06-21 华为技术有限公司 一种干扰协调方法、装置及系统
WO2016000149A1 (fr) * 2014-06-30 2016-01-07 Orange Procédé et appareil de programmation multipoint coordonnée décentralisée, avec optimisation de la performance statistique
CN105323839A (zh) * 2014-07-28 2016-02-10 宇龙计算机通信科技(深圳)有限公司 资源配置方法及配置系统、基站和终端
CN110099385B (zh) * 2014-09-10 2023-03-14 上海朗帛通信技术有限公司 一种蜂窝网中的授权频谱辅助接入通信方法和装置
JP2019511159A (ja) * 2016-02-19 2019-04-18 富士通株式会社 情報伝送装置、方法及び通信システム
CN107104686B (zh) * 2016-02-19 2019-11-29 华为技术有限公司 信号发送方法和发射机
CN108966348B (zh) * 2017-05-18 2021-10-22 普天信息技术有限公司 一种参考信息干扰处理方法及装置
CN107196730B (zh) * 2017-06-19 2019-06-14 中国移动通信集团江苏有限公司 用于tdd系统的通信方法和装置
CN108352974B (zh) * 2017-09-07 2021-02-19 北京小米移动软件有限公司 规避小区间干扰的方法及基站
CN109756976B (zh) 2017-11-03 2022-06-17 维沃移动通信有限公司 规避信号干扰的方法及网络设备
CN107947890B (zh) * 2017-11-14 2019-07-02 京信通信系统（中国）有限公司 一种小区间干扰协调方法及网络设备
EP3740001A4 (fr) * 2018-01-11 2021-11-10 Ntt Docomo, Inc. Dispositif de station de base
CN110139353A (zh) * 2018-02-08 2019-08-16 华为技术有限公司 一种多接入点ap协调传输的方法以及相关装置
CN108990074B (zh) * 2018-07-24 2021-09-17 国网湖南省电力有限公司 基于地图信息的电力系统无线专网基站建设规划方法
CN110858994A (zh) * 2018-08-23 2020-03-03 中国移动通信有限公司研究院 一种节能信息发送方法、装置和存储介质
CN114079943B (zh) * 2020-08-17 2023-08-15 大唐移动通信设备有限公司 一种干扰处理方法和装置
CN116326116A (zh) * 2020-12-18 2023-06-23 Oppo广东移动通信有限公司 干扰规避方法和基站
CN115085835B (zh) * 2021-03-15 2024-04-09 中国电信股份有限公司 信息交互方法、基站和通信系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102271337A (zh) * 2010-06-03 2011-12-07 中兴通讯股份有限公司 小区间干扰协调信息的处理方法及装置
CN102348216A (zh) * 2010-07-31 2012-02-08 华为技术有限公司 一种干扰处理方法和装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101394649A (zh) * 2007-09-21 2009-03-25 夏普株式会社 上行蜂窝通信系统中降低小区间干扰的方法及基站
CN102036249B (zh) * 2009-09-24 2015-01-14 株式会社Ntt都科摩 一种小区间干扰协调方法及基站
CN102014440B (zh) * 2009-09-28 2015-05-06 电信科学技术研究院 一种小区间干扰协调方法、装置和系统
US8868091B2 (en) * 2010-01-18 2014-10-21 Qualcomm Incorporated Methods and apparatus for facilitating inter-cell interference coordination via over the air load indicator and relative narrowband transmit power
CN102143595A (zh) * 2010-01-28 2011-08-03 华为技术有限公司 干扰协调处理方法和装置
CN101815301A (zh) * 2010-03-17 2010-08-25 华为技术有限公司 干扰协调方法、系统及设备
US20110249642A1 (en) * 2010-04-13 2011-10-13 Qualcomm Incorporated Adaptive resource negotiation between base stations for enhanced interference coordination
KR101673906B1 (ko) * 2010-04-29 2016-11-22 삼성전자주식회사 Ｏｆｄｍ 시스템에서 공간 다중화 제어 채널 지원을 위한 상향 링크 ａｃｋ／ｎａｃｋ 채널의 맵핑 방법 및 장치
CN102026207B (zh) * 2010-12-13 2014-09-10 中兴通讯股份有限公司 一种异构网络中小区间干扰协调方法及装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102271337A (zh) * 2010-06-03 2011-12-07 中兴通讯股份有限公司 小区间干扰协调信息的处理方法及装置
CN102348216A (zh) * 2010-07-31 2012-02-08 华为技术有限公司 一种干扰处理方法和装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015109441A1 (fr) * 2014-01-21 2015-07-30 Telefonaktiebolaget L M Ericsson (Publ) Procédés et appareils de coordination de la programmation de ressources entre réseaux sans fil
US10004084B2 (en) 2014-01-21 2018-06-19 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for coordinating resource scheduling between wireless networks
US10111250B2 (en) 2014-01-21 2018-10-23 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for coordinating resource scheduling between wireless networks
CN104902484A (zh) * 2014-03-04 2015-09-09 中国电信股份有限公司 Lte小区间干扰协调方法与装置
CN104902484B (zh) * 2014-03-04 2018-06-19 中国电信股份有限公司 Lte小区间干扰协调方法与装置
US10285064B2 (en) 2014-04-09 2019-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for coordinating resources between different networks
CN110383722A (zh) * 2017-01-09 2019-10-25 Lg电子株式会社 报告测量数据的方法及其终端
US11202218B2 (en) 2017-01-09 2021-12-14 Lg Electronics Inc. Method for reporting measurement data, and terminal therefor
WO2019196952A1 (fr) * 2018-04-13 2019-10-17 电信科学技术研究院有限公司 Procédé et dispositif d'attribution de bwp
US11032836B2 (en) 2018-04-13 2021-06-08 China Academy Of Telecommunications Technology Method and device for BWP allocation
US12127029B2 (en) 2021-10-25 2024-10-22 Lg Electronics Inc. Method for reporting measurement data, and terminal therefor

Also Published As

Publication number Publication date
CN106230542B (zh) 2020-08-25
CN103297980A (zh) 2013-09-11
CN103297980B (zh) 2016-12-14
CN106230542A (zh) 2016-12-14

Similar Documents

Publication Publication Date Title
WO2013127310A1 (fr) Procédé et dispositif de coordination d'interférences
KR102462602B1 (ko) 이동 통신 시스템에서 복수 연결을 지원하기 위한 제어 방법 및 복수 연결 지원 장치
EP3707948B1 (fr) Conception sur mappage de dmrs de pdcch et attribution de ressources de coreset
KR102488415B1 (ko) 채널 리소스 이용에 따라 우선순위화된 트래픽을 위한 lte-v2v 에서의 혼잡 제어
KR102479624B1 (ko) 비대칭 캐리어 집성에서 충돌들을 갖는 사운딩 참조 신호들
CN113196838B (zh) 针对功率节省配置的ue辅助信息
US10321294B2 (en) Signaling for proximity services and D2D discovery in an LTE network
US10631287B2 (en) Method and apparatus for supporting multi-radio access technology
EP3209039B1 (fr) Signalisation des services de proximité et découverte d2d dans un réseau lte
JP6283121B2 (ja) 二重連結システムにおけるパワーヘッドルーム報告をトリガリングする方法及びこのための装置
TWI729086B (zh) 經由pdcch來指示pdsch和pusch的開始符號和停止符號
RU2633524C1 (ru) Способ для сообщения запаса мощности и устройство для этого
US9521683B2 (en) Device to device communications
US9674743B2 (en) Method for performing measurement of objects and a device therefor
CN111295912A (zh) 定向波束环境中的功率控制
CN103891384B (zh) 传输调度请求的方法和装置、用户设备以及基站
EP3198988B1 (fr) Procédé et appareil de prise en charge de technologie d'accès multi-radio
CN114830590B (zh) 全双工干扰测量和报告
KR20160111359A (ko) 다수의 캐리어를 가지는 단말이 TTI (transmission time interval) 번들링을 설정하는 방법 및 그 장치
TW202123760A (zh) 用於無線通信系統中的實體上行鏈路共享信道排程的技術
US20220141873A1 (en) Channel occupancy information multi-access reporting
Reinikainen Performance Evaluation of LTE-Advanced Carrier Aggregation
CN118383052A (zh) 基于波束特定测量的有条件切换

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13754645

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13754645

Country of ref document: EP

Kind code of ref document: A1