WO2010096985A1 - 干扰控制信息的传输方法 - Google Patents

干扰控制信息的传输方法 Download PDF

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Publication number
WO2010096985A1
WO2010096985A1 PCT/CN2009/074706 CN2009074706W WO2010096985A1 WO 2010096985 A1 WO2010096985 A1 WO 2010096985A1 CN 2009074706 W CN2009074706 W CN 2009074706W WO 2010096985 A1 WO2010096985 A1 WO 2010096985A1
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WIPO (PCT)
Prior art keywords
base station
interference
information
terminal
frequency
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PCT/CN2009/074706
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English (en)
French (fr)
Inventor
鲁照华
刘锟
刘扬
谢峰
Original Assignee
中兴通讯股份有限公司
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Publication of WO2010096985A1 publication Critical patent/WO2010096985A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • a base station is a device that provides services for a terminal.
  • the base station can communicate with the terminal through the uplink/downlink, where the downlink (forward) refers to the direction of the base station to the terminal, and the uplink (reverse) refers to the direction of the terminal to the base station.
  • multiple terminals can simultaneously transmit data to the base station through the uplink, or can simultaneously receive data from the base station through the downlink.
  • scheduling allocation of system resources is usually performed by a base station.
  • the base station can schedule allocation of resources for downlink transmission and resources that can be used when the terminal performs uplink transmission.
  • the types of base stations are various, and may include, for example, a macro base station, a home base station, a relay station, a micro base station, and the like.
  • the Femtocell BS can have multiple operations.
  • the Femtocell BS can serve all terminals (in this case, the Femtocell BS is in the open state), and the Femtocell BS can also be a specific group.
  • the 4 authorized terminals provide monthly services (when jt ⁇ , the Femtocell BS is in the close state;).
  • the self-organizing network technology (self organizing network) is proposed for the network optimization technology based on artificial adjustment, and the technology can automatically configure the base station (for example, Including the parameters of the macro base station, the home base station, the relay station, the base station, etc., and automatically optimize the performance, coverage and capacity of the network.
  • the usual configuration process includes self configuration and self optimization. And there is usually a small amount of human intervention in these processes.
  • the self-configuration process is a process of base station initialization and automatic configuration, which may include cell initialization, neighbor discovery, and macro base station self-configuration.
  • the self-optimization process is to analyze the self-organizing network technology related to the base station/terminal. The results are measured to fine tune the base station parameters to optimize system performance (eg, optimized objects may include quality of service, network efficiency, throughput, cell coverage, and cell capacity, etc.).
  • optimized objects may include quality of service, network efficiency, throughput, cell coverage, and cell capacity, etc.
  • one problem that needs to be solved is the interference problem between cells. This problem is inherent in cellular mobile communication systems, and the presence of this problem can have a negative impact on the capacity of the system, which is caused by users who use the same frequency resources in each cell to interfere with each other.
  • FIG. 1a is a schematic diagram of an uplink trunk 4 in the related art.
  • BS1 is the serving base station of MS1
  • BS2 is the serving base station of MS2.
  • SCI the set of subcarriers allocated by BS1 to MS1 for uplink transmission
  • SC2 the set of subcarriers allocated by BS2 to MS2 for uplink transmission
  • SC The intersection of SC1 and SC2 is SC.
  • the SC is not an empty set, when the 'J BS2 receives the uplink signal sent by the MS2 (ie, the dedicated signal shown in FIG. 1a), the subcarriers in the set SC will simultaneously receive the MS1 transmission.
  • the wireless signal, and for MS2 and BS2, the above signal from MS1 is the interference signal (such as the signal shown by the dashed line in la).
  • the interference signal such as the signal shown by the dashed line in la.
  • the intensity of interference between cells will be relatively large and may result in BS2 cannot correctly demodulate the uplink signal (dedicated signal) sent by MS2, which leads to a decrease in system monthly performance.
  • Figure lb is a schematic diagram of downlink interference in the related art. As shown in FIG. 1B, BS1 is the monthly base station of MS1, and BS2 is the serving base station of MS2.
  • the subcarrier set for downlink transmission of BS1 to MS1 is SCI
  • the subcarrier set for downlink transmission of BS2 to MS2 is SC2, SC1 and The intersection of SC2 is SC.
  • SC Similar to the case of the uplink 4, if the SC at this time is not an empty set, when the downlink signal transmitted by the BS2 to the MS2 (ie, the dedicated signal shown in FIG. 1b), the subcarriers in the set SC will be transmitted.
  • the wireless signal will be received by MS1, and for MS1, the above signal from BS2 is the interference signal.
  • the present invention has been made in view of the problem of inter-cell interference existing in a plurality of frequency sets existing in the prior art. Therefore, it is a primary object of the present invention to provide a transmission scheme of interference control information. According to an aspect of the present invention, a method of transmitting interference control information is provided.
  • the method for transmitting interference control information according to the present invention includes: the first communication node transmitting the interference information to the second communication node, wherein the interference information is used to describe a plurality of frequency sets constituting the frequency resource, part or all of the frequency set Interference.
  • a method of transmitting interference control information is provided.
  • the method for transmitting interference control information according to the present invention includes: the interfered terminal reports interference information to its serving base station, wherein the interference information includes: all or part of system parameter information of the base station that is not allowed to access the terminal.
  • a method of transmitting interference control information is provided.
  • the method for transmitting interference control information according to the present invention includes: the terminal detects the frequency resource with the least interference, and transmits the information of the frequency resource to the serving base station of the terminal.
  • the base station sends the interference situation on the frequency set to the other network element.
  • the other network element can perform subsequent processing by using the interference condition, so as to avoid the same frequency on each network element. The interference is caused, the interference between cells can be reduced, and the performance and frequency utilization of the entire wireless communication system can be improved.
  • FIG. 1 a and 1b are schematic diagrams of inter-cell interference in the related art
  • FIG. 2 is a schematic diagram of division of uplink frequency resources in the related art
  • FIG. 3 is an interference control information according to the first embodiment of the method of the present invention.
  • FIG. 4 is a flowchart of a method for transmitting interference control information according to Embodiment 2 of the method of the present invention
  • FIG. 5 is a flowchart of a method for transmitting interference control information according to Embodiment 3 of the method of the present invention
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a self-optimization scheme for a wireless communication system, based on uplink/downlink measurement results from a terminal or a base station, in order to avoid the problem of inter-cell interference in the case of multiple frequency sets in the related art.
  • Adjusting resource usage and transmission power can avoid inter-cell interference, thereby improving the performance of the entire wireless communication system and simultaneously improving the spectrum utilization efficiency of the cellular system.
  • the technical solution of the present invention will be described in detail below with reference to the accompanying drawings.
  • the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • the division of the frequency set of the uplink frequency resources according to the embodiment of the present invention is first described. 2 is a schematic diagram of frequency set partitioning of uplink frequency resources of a wireless communication system employing IEEE 802.16 technology in this embodiment. As shown in FIG.
  • all or part of the available uplink frequency resources are divided into four frequency parts (Frequency Partitions) FP1 to FP4, each frequency set is composed of several subcarriers (not shown), and the horizontal direction in FIG.
  • the coordinates are frequency domain coordinates, and the ordinate is time domain coordinates. It should be noted that all or part of the available uplink frequency resources can be flexibly set according to needs, and divided into arbitrary frequency sets, not limited to four.
  • a method for transmitting interference control information comprising: transmitting, by a first communication node, interference information to a second communication node, where the interference information is used to describe multiple frequencies constituting a frequency resource
  • the interference in the set, part or all of the frequency set, the interference information includes at least one of the following: interference level information, interference measurement information.
  • the second communications node may send a request to obtain the interference information to the first communications node, where the first communications node sends the acquired interference to the second communications node in the interference information.
  • the first communications node may The interference information is transmitted to the second communication node in one of the following ways: through the air interface, through the backbone network; the second communication node receives the interference information, and adjusts according to the interference information
  • the allocation of physical resources in the entire or all of the frequency sets, and/or the transmission power used when transmitting the data on the physical resources, and/or the second communication node further forwards the interference information.
  • the first communication node sends the acquired interference to the second communication node by using one of the following modes: a broadcast mode, a multicast mode, and a unicast mode.
  • the frequency resource includes at least one of the following: all downlink frequency resources, part of downlink frequency resources, all uplink frequency resources, and some uplink frequency resources;
  • the interference information includes at least one of the following: interference level information, interference measurement information.
  • the first communication node includes one of the following: a terminal, a macro base station, a micro base station, a home base station, a relay station, an access service network, a connection service network, a self-organizing network server, and a core network; and the second communication node includes one of the following: Macro base station, micro base station, home base station, relay station, access service network, connection service network, self-organizing network server, core network.
  • FIG. 3 is a flowchart of a method for transmitting interference control information according to an embodiment of the present invention in an uplink available resource division manner of FIG. 2, as shown in FIG. 3, the flow includes the following processing (step S302 to step S304).
  • Step S302 The base station acquires an uplink interference (a condition) on a part or all of the frequency sets of the plurality of frequency sets of the uplink frequency resource, where the base station may obtain the uplink interference by using the uplink interference, or may receive the uplink interference from the outside.
  • Step S304 the base station sends the uplink interference information (also referred to as the uplink interference situation information) to the other network element, where the uplink interference information is used to indicate the acquired uplink interference, and the uplink interference information includes at least one of the following: Level information and uplink interference measurement information, where other network elements include: a terminal, a macro base station, a micro base station, a home base station, a relay station, an access service network, a connection monthly service network, a self-organizing network server, and a core network.
  • the uplink interference information also referred to as the uplink interference situation information
  • the uplink interference information includes at least one of the following: Level information and uplink interference measurement information, where other network elements include: a terminal, a macro base station, a micro base station, a home base station, a relay station, an access service network, a connection monthly service network, a self-organizing network server, and a core network.
  • the base station may send the uplink interference information to other network elements in one of the following ways: The base station transmits the uplink interference information to other network elements through the air interface, and/or the backbone network. Further, after the base station sends the uplink interference information to other network elements, the other The network element receives the uplink interference information, and adjusts the allocation of physical resources in part or all of the frequency sets according to the uplink interference information, and/or the transmission power used when transmitting the uplink data on the physical resources, and/or other network elements further.
  • the uplink interference information is forwarded. For example, after the terminal receives the uplink interference information sent by the base station, the terminal may forward the message to other base stations.
  • the base station sends the interference situation on the frequency set to other network elements, so that other network elements can perform subsequent processing through the interference situation, thereby avoiding interference on the same frequency and reducing Small-area interference improves the performance and spectrum utilization of the entire wireless communication system.
  • the method shown in FIG. 2 will be described in detail below with reference to specific example 1, example 2, example 3, example 4, example 5, example 6, and example 7.
  • the base station BS-A measures the respective uplink interference values of the four frequency sets (i.e., the above-mentioned dry information) (in dB, preferably, the value is an absolute value),
  • the backhaul (backbone) is used to send the four uplinks to each of the four uplinks.
  • the transmitted trunk 4 value can be passed by the absolute value (dry ⁇ especially measurement information) and / or relative value (dry ⁇ ⁇
  • the level is expressed in the form of a neighboring base station BS-B (i.e., other network elements as described above).
  • the uplink interference value on the uplink frequency set FP1 of the BS-A is found to be large, the uplink interference value according to the frequency set is lowered to use the base station BS-A as the serving base station.
  • the uplink interference value on the uplink frequency FP4 of the base station BS-A is found to be small, the uplink interference value according to the frequency set is increased by using the base station BS-A as the serving base station.
  • the base station BS-A measures the respective uplink interference values of the four frequency sets (i.e., the dry 4 information described above) and compares these values with a predetermined set of threshold values (usually It may include one or two thresholds, where two thresholds are respectively set, 6 dB and 8 dB respectively. If the uplink interference measurement value on a certain frequency set is greater than 6 dB, it is considered that the uplink interference received on the frequency set is large.
  • the interference indication information '01 is generated and sent to other base stations.
  • the uplink interference measurement value on a certain frequency set is greater than 8 dB, the uplink interference received on the frequency set is considered to be very large, and the interference indication bit information '10 is generated, and then sent to Other base stations, assuming uplink interference on the frequency set FP1 7dB, the uplink interference on the frequency set FP2 is 10dB, and the 'j BS-A sends the uplink interference indication information to the base station BS-B through the backbone network, where the information includes at least one bit sequence of '01100000, which is eight bits long. (By the bit sequence, the uplink interference can be represented by a relative value).
  • the BS-B After receiving the relevant information, the BS-B finds that there is a large uplink interference on the uplink frequency set FP1 and FP2 of the BS-A, according to the uplink.
  • the interference value is reduced by the transmission power of the terminal of the serving base station on these frequency sets.
  • the threshold number is greater than two
  • the processing is similar to the processing in the case of two thresholds, and is not repeated here.
  • the base station BS-A measures the respective uplink interference values of the four frequency sets (i.e., the above-mentioned dry information), and sets these values with a preset threshold (for example, preset)
  • the threshold is set to 8 dB) for comparison.
  • the uplink 4 received on the set of frequency sets FP2 and FP4 is greater than the threshold, and the
  • the BS-A sends the uplink interference message to the terminal.
  • the terminal may send the uplink ⁇ ⁇ message in one of the following manners: a broadcast mode, a multicast mode, a unicast mode, and an air interface; After the uplink interference message, the uplink transmission power of the terminal on the corresponding frequency set is controlled according to the uplink interference message. It should be noted here that the terminal is not a terminal with BS-A as the uplink monthly cell.
  • the base station BS-A measures the respective uplink interference values of the four frequency sets (i.e., the interference information described above), and compares these values with a preset threshold (8 dB), assuming the frequency If the uplink 4 received on the set FP2 and FP4 is greater than the threshold, the BS-A generates a bit sequence '0101, where the first bit in the sequence indicates that the uplink interference received by the FP1 is small, and the second bit indicates that the FP2 is received. The uplink interference is large, the third bit indicates that the uplink interference received by FP3 is small, and the fourth bit indicates that the uplink interference received by FP4 is large, and the bit sequence is carried in the uplink interference message.
  • a preset threshold 8 dB
  • the BS-A sends the uplink interference message to the terminal.
  • the terminal may send the uplink 4 message in one of the following ways: broadcast mode, multicast mode, unicast mode, air
  • the terminal forwards the uplink interference message to the base station BS-B, and the BS-B controls, according to the uplink interference message, the terminal with the own (ie BS-B) as the serving base station on the frequency set. Transmit power.
  • the base stations BS-A, BS-B, and BS-C respectively report the uplink interference information received by the self-organizing network server on all or part of the frequency set (ie, the interference information described above).
  • the BS-A reports to the ad hoc network server the uplink interference information received by the BS-A on all or part of the frequency set (the cartridge is called the uplink interference information A), and the BS-B reports the BS- to the ad hoc network server.
  • the uplink interference information received on all or part of the frequency set (the cylinder is called the uplink interference information B)
  • the BS-C reports to the ad hoc network server the uplink interference information received by the BS-C on all or part of the frequency set ( The cartridge is called uplink interference information C).
  • the self-organizing network server determines the power control policy of each base station on each frequency set based on the uplink interference information A, the uplink interference information B, and the uplink interference information C, and the load conditions of each base station, and sends the relevant power control policy to the corresponding
  • the base station that is, the self-organizing network server determines the power control strategy of the BS-A on each frequency set based on the uplink interference information A, the uplink interference information B, and the uplink interference information C, and the load conditions of each base station (the cylinder is called power control).
  • the self-organizing network server allocates a token to the base station according to the load condition or a specific period of the base station, and the base station that obtains the token sends the uplink interference situation that it receives on each uplink frequency set to the neighboring base station (ie, The interference information described above, the neighboring base station adjusts the uplink transmission power of the terminal that serves as the serving base station by itself based on the information.
  • the ad hoc network server allocates a token to the BS-A according to the load condition or a specific period of the base station BS-A, and after obtaining the token, the BS-A sends the BS-A to the neighboring base station BS-B of the BS-A.
  • the BS-B Based on the uplink interference condition received by each set of uplink frequencies, the BS-B adjusts the uplink transmission power of the terminal using the BS-B as the serving base station based on the uplink interference condition.
  • the base station that obtains the token can actively inform the self-organizing network server to release the token that belongs to itself, and the self-organizing network server can also obtain the base station release token of the token according to the load change condition of the base station.
  • the BS-A can be sent to the ad hoc network server through a signaling message.
  • the self-organizing network server release the token belonging to the BS-A, and the self-organizing network server may also request the BS-A to actively release the token according to the load change of the BS-A.
  • Example 7 In this example, a token exists in a wireless communication system, and a base station that obtains a token can transmit uplink interference information (cases) and/or an entire uplink that it receives on each uplink frequency set to other base stations within a configured time interval.
  • the average uplink interference information on the frequency (case), the base station that obtains the information adjusts the uplink transmission power of the terminal that serves as the serving base station according to the uplink interference information and/or the average uplink interference information.
  • the BS-A obtains the token, and the BS-A transmits the uplink interference information (case) received by the BS-A on each uplink frequency set to the BS-B and the BS-C during the configured time interval, and/or the entire uplink frequency.
  • the average uplink interference information (case), the BS-B adjusts the uplink transmission power of the terminal using the BS-B as the serving base station according to the uplink interference information and/or the average uplink interference information, and the BS-C according to the uplink interference information and/or Or the average uplink interference information, and adjust the uplink transmission power of the terminal that uses the BS-C as the serving base station.
  • the information related to the uplink interference situation may share a value by a plurality of frequency sets. Through the above examples, it is avoided to cause interference on the same frequency of each network element, which can reduce interference between cells and improve the performance of the entire wireless communication system.
  • Method Embodiment 2 FIG.
  • Step S402 The terminal measures downlink interference on some or all of the plurality of frequency sets of the downlink frequency resource.
  • Step S404 The terminal sends the measured downlink interference to the base station by using the downlink interference information, where the downlink interference information includes at least one of the following: downlink interference level information and downlink interference measurement information.
  • the base station requests the terminal to acquire downlink interference information, and the terminal measures downlink interference on some or all of the frequency sets of the multiple frequency sets of the downlink frequency resource according to the request, and passes the measured downlink interference.
  • the downlink interference information is sent to the base station; the base station receives the downlink interference information, and adjusts the downlink resource allocation of the terminal that uses the base station as the serving base station according to the downlink interference information.
  • the base station may send the downlink interference information to other network elements, where
  • the network element may include one of the following: other terminals, a macro base station, a micro base station, a home base station, a relay station, an access service network, a connection service network, a self-organizing network server, and a core network.
  • the terminal sends the interference situation on the frequency set to the network side.
  • the network side can perform subsequent processing through the dry 4, so as to avoid interference on the same frequency of each network element. It can reduce inter-cell interference and improve the performance and spectrum utilization of the entire wireless communication system.
  • the method shown in FIG. 4 will be exemplified below with reference to Example 8, Example 9, Example 10, Example 11, Example 12, and Example 13.
  • Example 8 the terminal MS-A measures the downlink 4 on each frequency set (ie, the interference information described above), and sends the uplink/downlink interference measurement values of each frequency set to its own.
  • the serving base station BS-A; BS-A determines whether to request adjustment of downlink transmission power on all or part of the frequency sets of other base stations according to the location of the MS-A and the load condition of itself (BS-A), and/or The frequency set size.
  • Example 9 The difference between Example 9 and Example 8 is: In Example 8, BS-A - subsequent processing according to the location of MS-A and the load of itself (BS-A), in Example 9, BS-A According to the reception condition and content of the downlink interference measurement value on the frequency set greater than the preset threshold, subsequent processing is performed, that is, the example 8 and the example 9 give the scenario that the base station performs subsequent processing.
  • the terminal MS-A measures the downlink 4 on the primary frequency set (ie, the above-mentioned dry information), wherein the primary frequency set can be used by the MS-A monthly base station BS.
  • the specific codeword sends, to the BS-A, notification information indicating that the downlink interference measurement value on the primary frequency set is greater than a preset threshold, and the BS-A determines according to the reception quality of the notification information, and/or the content of the notification information. Whether it is necessary to send a request to other base stations, requesting other base stations to reduce the downlink transmit power on the set of frequencies.
  • the BS-A After receiving the notification information from the MS-A, the BS-A finds that the reception quality of the notification information is high, and requests other base stations to reduce the downlink transmission power on the frequency set, and vice versa.
  • Example 10 The difference between the example 10 and the example 9 is that in the example 9, the MS-A sends relevant information to its monthly base station BS-A, and the BS-A requests other base stations according to the related information (except BS-A). The base station) performs corresponding processing. In the example 10, the MS-A directly transmits relevant information to other base stations, and the other base stations 4 process correspondingly according to the related information.
  • the terminal MS-A measures the downlink 4 in the primary frequency set (ie, the interference information described above), and the serving base station of the MS-A is the BS-A, where the primary frequency set It may be specified by MS-A's monthly base station BS-A or by standard default; if MS-A finds that the downlink interference measurement on the primary frequency set is greater than a preset threshold (for example, a preset threshold of 8 dB)
  • the MS-A may send a command to the primary frequency set by using a specific codeword to other base stations other than the BS-A (for example, BS-B, BS-C, etc., hereinafter, taking BS-B as an example).
  • the downlink interference measurement value is greater than the notification information of the preset threshold, and the BS-B determines whether it is necessary to reduce the downlink transmission power on the frequency set according to the reception quality of the notification information and/or the information content. For example, after receiving the notification information from the MS-A, the BS-B finds that the reception quality of the notification information is high, and the BS-B reduces the downlink transmission power on the frequency set, and vice versa.
  • the terminal MS-A measures the downlink 4 on the primary frequency set (ie, the dry information described above), wherein the primary frequency set can be configured by the MS-A
  • the base station BS-A specifies or is configured by the standard default; if the MS-A finds that the downlink 4th measurement value on the primary frequency set is greater than a preset threshold (for example, a preset threshold is 8 dB), the MS-A
  • the notification information indicating that the downlink interference measurement value on the primary frequency set is greater than a preset threshold may be transmitted to the network side (for example, BS-A, or other base stations other than BS-A) through a specific codeword.
  • the transmission power of the codeword depends on the size of the MS-A received on the primary frequency set.
  • BS-A other base stations than BS-A (for example, BS-B, BS-C, etc., hereinafter, BS-B is taken as an example) according to the reception quality of the notification information, and / Or information content, to determine if it needs to be reduced
  • the downlink transmit power on this set of frequencies For example, after receiving the notification information from the MS-A, the BS-B finds that the reception quality of the notification information is high, and the BS-B reduces the downlink transmission power on the frequency set, and vice versa.
  • the base station BS-A requires the terminal MS-A (close to the base station BS-B) to measure the signal strength measurement of neighbor BS on all or part of the frequency set through downlink signaling.
  • the MS-A measures the downlink interference condition on the relevant frequency set according to the requirements of the BS-A, obtains the interference measurement result (that is, the interference information described above), and reports the interference measurement result to the BS-A; BS-A And determining, according to the interference measurement result, a downlink power adjustment amount of the base station BS-B that generates downlink interference on the relevant frequency set, and transmitting the downlink power adjustment quantity to the BS-B through the backbone network.
  • Example 13 differs from Example 12 in that: In Example 13, the frequency set FP4 is specifically indicated.
  • the base station BS-A requests the terminal MS-A (near the base station BS-B) to measure the downlink interference condition (i.e., the interference information described above) on the frequency set FP4 through downlink signaling.
  • the MS-A measures the downlink interference on the relevant frequency set according to the requirements of the BS-A, obtains the measurement result, and reports the measurement result to the BS-A.
  • the BS-A determines the base station that generates downlink interference to itself according to the measurement result. Whether the BS-B needs to adjust the downlink power on the frequency set FP4, if adjustment is needed, the BS-A sends a request to the BS-B through the backbone network, requesting the BS-B to reduce the downlink transmit power of the BS-B on the FP4.
  • the information related to the uplink interference situation may share a value by a plurality of frequency sets.
  • the third embodiment of the present invention provides a method for transmitting interference control information, where the method includes: the interfered terminal reports interference information to the serving base station 4, and the interference information includes: All or part of the system of all or part of the base station (Inaccessible Base Station)
  • the parameter information, where the base station that does not allow the terminal to access may be all the base stations that are not allowed to access the terminal, or some base stations that are not allowed to access the terminal, and the base station that is not allowed to access the terminal is close to the terminal.
  • the terminal may be caused by the terminal.
  • the base station that does not allow the terminal to access may be a base station that cannot provide the terminal, or the terminal is not allowed to send the probe or the ranging code.
  • a base station or a base station that denies access by the terminal during an access procedure.
  • the terminal reports interference information to the serving base station, and the serving base station receives the interference information, and sends a power request to the home base station according to the interference information.
  • the information requires the home base station to reduce the transmission power on the corresponding frequency resource or prohibit the use of the corresponding frequency resource.
  • the interference information includes at least one of the following: at least one of the following: the frequency resource description information, the interference measurement value, and the interference level information of the terminal
  • the parameter information includes at least one of the following: a base station identifier, a type information of the base station (also referred to as cell type information), an operation mode information of the base station, carrier frequency information of the base station, and bandwidth information of the base station; One: a home base station, a macro base station, a micro base station, and a relay station.
  • FIG. 5 is a flowchart of downlink inter-cell interference control performed by the system according to the third embodiment of the method. As shown in FIG. 5, the following processing is included (step S502 to step S504).
  • Step S502 The terminal that is interfered by the home base station that is not allowed to access the device reports the interference information to the serving base station, and the interference information includes at least all or part of the system parameter information of the home base station that is not allowed to access the terminal.
  • Step S504 The serving base station receives the interference information and performs subsequent processing.
  • the terminal sends the interference situation to the serving base station.
  • the network side can perform subsequent processing by using the interference situation, thereby avoiding interference on the same frequency of each network element, and reducing inter-cell Interference, improve the performance and frequency utilization of the entire wireless communication system.
  • the method shown in FIG. 5 will be exemplified below with reference to Example 14 and Example 15.
  • the terminal MS-A is close to the home base station Femtocell BS-A in the close state and the Femtocell BS-A does not allow MS-A access.
  • the serving base station of the MS-A is the BS-B (the BS-B can be one of the following: a macro base station, a micro base station, a home base station, a relay station), and the MS-A measures the interference condition on the downlink frequency resource (ie, Interference information described in the text), for example, MS-A measures the interference situation of the frequency set. If MS-A finds that the downlink interference received on the frequency set FP2 is large (greater than a predetermined threshold), MS-A will correlate the interference information.
  • the information is reported to the BS-B or the upper-layer network element (Network), where the interference information carries related parameter information and frequency set information of the home base station Femtocell BS-A, and the related parameter information may be Femtocell BS-A.
  • the transmit power to control the inter-cell dry ⁇ .
  • Example 15 The difference between the example 15 and the example 14 is:
  • the terminal measures the interference of the frequency set, so that the network side controls the transmit power on the frequency set.
  • the terminal measures the LRU.
  • the interference situation causes the network side to control the transmit power on the LRU.
  • the terminal MS-A is close to the home base station Femtocell BS-A in the close state and the Femtocell BS-A does not allow MS-A access.
  • the serving base station of the MS-A is the BS-B (the BS-B can be one of the following: a macro base station, a micro base station, a home base station, a relay station), and the MS-A measures the interference condition on the downlink frequency resource (ie, The interference information described in the document), for example, MS-A measures the dry 4 situation of a logical resource unit (Logical Resource Unit).
  • the BS-B can be one of the following: a macro base station, a micro base station, a home base station, a relay station
  • the MS-A measures the interference condition on the downlink frequency resource (ie, The interference information described in the document), for example, MS-A measures the dry 4 situation of a logical resource unit (Logical Resource Unit).
  • a logical resource unit Logical Resource Unit
  • the MS-A detects that the downlink interference received on the frequency resources LRU1 to LRU4 is large (greater than the predetermined threshold), the MS-A reports the related interference information to the BS-B or the upper network element (Network), where the network 4
  • the specific information carries the parameter information and frequency set information of the femtocell BS-A of the femtocell BS-A, and the related parameter information may be information such as the base station of the Femtocell BS-A and the base station type of the Femtocell BS-A;
  • the BS-B or the upper-layer NE sends a request to the Femtocell BS-A to request the Femtocell BS-A to reduce the transmit power of the Femtocell BS-A on the frequency sets LRU1 to LRU4 to control the inter-cell interference.
  • Method Embodiment 4 provides a method for transmitting interference control information according to an embodiment of the present invention, where the method includes: detecting, by a terminal, a frequency resource that is least interfered by a base station other than a serving base station of the terminal, And transmitting the information of the frequency resource to the serving base station, where the information of the frequency resource may include the location information of the detected frequency resource, the information of the channel, the channel quality information, and the channel state information.
  • the terminal detects the frequency resource with the least downlink interference generated by the terminal or all other base stations except the base station, and carries the information of the detected frequency resource in the message and sends the message to the serving base station, where the service
  • the base station may include at least one of the following: a macro base station, a micro base station, a home base station, and a relay station, and the other base stations may include at least one of the following: a macro base station, a micro base station, a home base station, and a relay station.
  • the serving base station selects a resource for transmitting data for the terminal according to the frequency resource information.
  • Step S602 the terminal detects that the frequency resource with the lowest downlink interference is not the serving base station and reports the related frequency resource information to the serving base station.
  • Step S604 the serving base station selects the appropriate resource for the terminal to transmit the downlink data according to the information.
  • the terminal sends the frequency resource with the smallest interference to the serving base station.
  • the network side can perform subsequent processing by using the interference condition to avoid interference on the same frequency of each network element, which can be reduced.
  • Example 16 the serving base station of the terminal MS-A is the macro base station BS-A, and the MS-A is close to the home base station Femtocell BS-A, the home base station Femtocell BS-B, and the macro base station BS-B.
  • the MS-A measures the dry 4 on the downlink frequency resource (ie, the dry 4 especially mentioned above) If the frequency resource LRU8 ⁇ LRU11 is detected to be the least interfered by the home base station and/or the macro base station around the MS-A, the MS-A reports the frequency resource information of the LRU8 to the LRU 11 to the serving base station BS-A.
  • the BS-A obtains the frequency resource, and allocates an appropriate downlink resource to the MS-A according to at least one of the following information: the frequency resource information, the service situation, the load condition, and the terminal distribution.
  • Example 17 The difference between the example 17 and the example 16 is:
  • the monthly base station of the terminal is a macro base station
  • the serving base station of the terminal is a home base station, and it can be seen that the macro base station or the home base station , the terminal can be allocated appropriate downlink resources according to the frequency resources from the terminal.
  • the serving base station of the terminal MS-A is the home base station Femtocell BS-A, and
  • the MS-A is close to the home base station Femtocell BS-B, Femtocell BS-C, and macro base station BS-B.
  • the MS-A detects that the frequency resources LRU8 ⁇ LRU11 are interfered by the home base station and/or the macro base station around the MS-A by measuring the dry 4 condition on the downlink frequency resource (ie, the above-mentioned dry information). If the MS-A is the smallest, the MS-A reports the frequency resource information of the LRU8 to the LRU 11 to the serving base station Femtocell BS-A.
  • the Femtocell BS-A obtains the frequency resource and then according to at least one of the following information: Frequency resource information, service The situation, load situation, and terminal distribution are assigned to the appropriate downlink resources for MS-A.
  • the interference measurement information includes at least one of the following: interference mean, interference variance, signal to interference and noise ratio mean, signal to interference and noise ratio variance, signal to noise ratio mean, signal to noise ratio variance, signal quality information .
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the base station/terminal measures the uplink/downlink dry 4 in the frequency set, and transmits the measured result, so that After that, the uplink/downlink transmission can be adjusted according to the measured result; Specifically, for the downlink interference caused by the base station to the terminal that is not served by the base station, and the downlink interference caused by the home base station to the unlicensed terminal, the terminal reports the related information of the interference to the serving base station, and then allocates new resources to the terminal.
  • the base station causing the interference is adjusted for downlink transmission, thereby avoiding interference on the same frequency, thereby reducing inter-cell interference and improving spectrum utilization efficiency of the cellular system.

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Description

干扰控制信息的传输方法
技术领域 本发明涉及通信领域, 尤其涉及一种干扰控制信息的传输方法。 背景技术 无线通信系统中, 基站是为终端提供服务的设备。 通常, 基站可以通过 上 /下行链路与终端进行通信, 其中, 下行(前向) 是指基站到终端的方向, 上行(反向) 是指终端到基站的方向。 并且, 多个终端可同时通过上行链路 向基站发送数据, 也可以通过下行链路同时从基站接收数据。 通常 , 在采用基站调度控制的数据传输系统中 , 系统资源的调度分配通 常由基站进行, 例如, 基站可以调度分配用于进行下行传输的资源分配以及 终端进行上行传输时所能使用的资源等。 基站的类型多种多样, 例如, 可以包括宏基站、 家庭基站、 中继站、 微 基站等。 其中, 家庭小区基站 ( Femtocell BS ) 可以有多种工作^)犬态, 例如, Femtocell BS可以为所有终端提供服务(此时, 称 Femtocell BS处于 open状 态), Femtocell BS 也可以只为一组特定的 4受权终端提供月 务 (jt匕时, 称 Femtocell BS处于 close 犬态;)。 随着无线通信技术的发展, 系统优化过程也变得越来越复杂, 系统中任 何一个参数的改变都可能会对系统性能产生较大的影响, 同时也会浪费运营 商大量的人力物力资源来进行系统优化, 这就对传统的基于人为调整的网络 优化技术提出了新的挑战。 针对采用基于人为调整的网络优化技术所带来的优化成本高、优化过程 自主' I·生差的问题, 目前提出了自组织网络技术 ( self organizing network ), 该 技术可以自动配置基站(例如, 包括宏基站、 家庭基站、 中继站、 啟基站等) 的参数并自动优化网络的性能、 覆盖和容量, 通常所采用的配置过程包括自 配置 ( self configuration ) 和自优化 ( self optimization ) 两 4分, 并且在这些 过程中通常会存在少量的人为干预。 具体地, 自配置过程是基站初始化和自动配置的过程, 其中可以包括小 区初始化、 邻区发现、 宏基站自配置等处理; 自优化过程则是分析来自基站 / 终端的与自组织网络技术有关的测量结果来精细地调节基站参数, 从而优化 系统的性能 (例如, 优化的对象可以包括服务质量、 网络效率、 吞吐量、 小 区覆盖、 和小区容量等)。 在自优化过程中, 需要解决的一个问题是小区间的干扰问题。 该问题是 蜂窝移动通信系统中所固有的 , 并且该问题的存在会对系统的容量产生不良 的影响 ,其形成原因是各个小区中使用相同频率资源的用户会相互产生干扰。 图 la是相关技术中上行链路干 4尤的示意图。如图 la所示, BS1为 MS1 的服务基站, BS2为 MS2的服务基站, 假设 BS1分配给 MS1用于上行传输 的子载波集合为 SCI , BS2分配给 MS2用于上行传输的子载波集合为 SC2 , SC1和 SC2的交集为 SC。 此时, 如果 SC不是空集, 贝' J BS2在接收到 MS2 发送的上行信号 (即, 图 la中所示的专用信号) 时, 在集合 SC内的子载波 将会同时收到 MS1 发送的无线信号, 且对于 MS2和 BS2来说, 上述来自 MS1的信号就是干扰信号 (如图 la中的虚线所示的信号)。 并且, 如果 MS1和 MS2之间的 巨离 艮小 ( :1设 MS1和 MS2都处于两 个服务小区覆盖区域的重叠部分),此时小区间的干扰的强度将会比较大, 并 且可能会导致 BS2无法正确解调出 MS2发送的上行信号(专用信号), 进而 导致系统月 务性能的下降。 图 lb是相关技术中下行链路干扰的示意图。如图 lb所示, BS1为 MS1 的月 务基站, BS2为 MS2的服务基站, 假设 BS1向 MS1进行下行传输的子 载波集合为 SCI , BS2向 MS2进行下行传输的子载波集合为 SC2, SC1 和 SC2的交集为 SC。 与上行干 4尤的情况类似, 如果此时的 SC不是空集, 则在 BS2向 MS2发送的下行信号(即, 图 lb中所示的专用信号)时, 在集合 SC 内的子载波将发送的无线信号将会被 MS1接收到, 且对于 MS1来说, 上述 来自 BS2的信号就是干扰信号。 目前, 虽然提出了将频率资源划分为多个频率集合的技术, 但是针对在 多个频率集合中存在的小区间干扰的问题, 目前尚未提出有效的解决方案。 发明内容 考虑到现有技术中存在的在多个频率集合中存在的小区间干扰的问题 而 丈出本发明, 为此, 本发明的主要目的在于提供一种干扰控制信息的传输 方案。 根据本发明的一个方面, 提供了一种干扰控制信息的传输方法。 根据本发明的干扰控制信息的传输方法包括:第一通信节点将干扰信息 发送给第二通信节点, 其中, 该干扰信息用于描述构成频率资源的多个频率 集合中, 部分或全部频率集合上的干扰。 根据本发明的另一方面 , 提供一种干扰控制信息的传输方法。 才艮据本发明的干扰控制信息的传输方法包括:受到干扰的终端向其服务 基站报告干扰信息, 其中, 该干扰信息中包括: 不允许终端接入的基站的全 部或部分系统参数信息。 根据本发明的又一方面 , 提供一种干扰控制信息的传输方法。 才艮据本发明的干扰控制信息的传输方法包括:终端检测出干扰最小的频 率资源, 并将频率资源的信息发送给终端的服务基站。 通过本发明的上述技术方案,基站将频率集合上的干扰情况发送给其他 网元, 相比于现有技术, 可以使其他网元通过该干扰情况进行后续处理, 避 免在各网元相同频率上造成干扰, 可以降低小区间的干扰, 提升整个无线通 信系统的性能及频 i普利用率。 附图说明 此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中: 图 1 a和 lb是相关技术中小区间干扰的示意图; 图 2是相关技术中上行频率资源的划分的示意图; 图 3是才艮据本发明方法实施例一的干扰控制信息的传输方法的流程图; 图 4是才艮据本发明方法实施例二的干扰控制信息的传输方法的流程图; 图 5是才艮据本发明方法实施例三的干扰控制信息的传输方法的流程图; 图 6是才艮据本发明方法实施例四的干扰控制信息的传输方法的流程图。 具体实施方式 功能相克述 针对相关技术中在多频率集合情况下无法避免小区间干扰的问题,本发 明提供了一种无线通信系统的自优化方案, 通过基于来自终端或基站的上 / 下行测量结果调整资源的使用情况和传输功率, 能够避免小区间的干扰, 进 而提升整个无线通信系统的性能, 并同时提升蜂窝系统的频谱利用效率。 下 面将结合附图详细描述本发明的技术方案。 在不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组 合。 为了便于理解, 在对本发明实施例进行说明之前, 首先对本发明实施例 涉及的上行频率资源进行频率集合的划分进行筒要的描述。 图 2是本实施例中对于采用 IEEE 802.16技术的无线通信系统的上行频 率资源进行频率集合划分的示意图。 如图 2所示, 全部或部分可用上行频率 资源被划分成四个频率集合 ( Frequency Partition ) FP1 ~ FP4, 每个频率集合 由若干个子载波(未示出)构成, 并且, 图 2中的横坐标为频域坐标, 纵坐 标为时域坐标, 需要说明的是, 全部或部分的可用上行频率资源可以才艮据需 要灵活设置, 划分成任意个频率集合, 并不限于四个。 才艮据本发明实施例, 提供一种干扰控制信息的传输方法, 该方法包括: 第一通信节点将干扰信息发送给第二通信节点, 其中, 干扰信息用于描述构 成频率资源的多个频率集合中, 部分或全部频率集合上的干扰, 该干扰信息 包括以下至少之一: 干扰级别信息、 干扰测量信息。 在具体实施过程中,第二通信节点可以向第一通信节点发送请求获取干 扰信息,第一通信节点将获取的干扰携带在干扰信息中发送给第二通信节点, 具体地, 第一通信节点可以通过以下方式之一将干扰信息传输给第二通信节 点: 通过空口、 通过骨干网; 第二通信节点接收干扰信息, 根据干扰信息调 整部分或全部频率集合中物理资源的分配情况、和 /或在物理资源上传输数据 时所使用的传输功率、 和 /或第二通信节点进一步转发干扰信息。 其中,第一通信节点通过以下方式之一将获取的干扰通过干扰信息发送 给第二通信节点: 广播方式、 组播方式、 单播方式。 其中, 频率资源包括以下至少之一: 全部下行频率资源、 部分下行频率 资源、 全部上行频率资源、 部分上行频率资源; 干扰信息包括以下至少之一: 干扰级别信息、 干扰测量信息。 第一通信节点包括以下之一: 终端、 宏基站、 微基站、 家庭基站, 中继 站、 接入服务网、 连接服务网、 自组织网络服务器、 核心网; 第二通信节点 包括以下之一: 终端、 宏基站、 微基站、 家庭基站, 中继站、 接入服务网、 连接服务网、 自组织网络服务器、 核心网。 下面结合方法实施例一和方法实施例二对上述方法进行详细说明。 方法实施例一 根据本发明实施例, 提供一种干扰控制信息的传输方法。 图 3 ^^于图 2的上行可用资源划分方式下,根据本发明实施例的干扰 控制信息的传输方法的流程图 ,如图 3所示,该流程包括以下处理(步骤 S302 至步骤 S304 )。 步骤 S302, 基站获取上行频率资源的多个频率集合中部分或全部频率 集合上的上行干扰(情况), 其中, 基站可以通过测量得到该上行干扰, 也可 以从外界接收该上行干扰。 步骤 S304, 基站将上行干扰信息 (也可称为上行干扰情况信息) 发送 给其它网元, 其中, 该上行干扰信息用于表示获取的上行干扰, 该上行干扰 信息包括以下至少之一: 上行干扰级别信息、 上行干扰测量信息, 其中, 其 它网元包括: 终端、 宏基站、 微基站、 家庭基站, 中继站、 接入服务网、 连 接月 务网、 自组织网络月 务器、 核心网。 在上述步骤 S304中的具体实施过程中, 基站可以通过以下方式之一将 上行干扰信息发送给其它网元: 基站通过空口、 和 /或骨干网向其它网元传输 上行干扰信息。 进一步地, 基站将上行干扰信息发送给其它网元之后, 其它 网元接收上行干扰信息 , 才艮据上行干扰信息调整部分或全部频率集合中物理 资源的分配情况、 和 /或在物理资源上传输上行数据时所使用的传输功率、 和 /或其它网元进一步转发上行干扰信息, 例如, 当终端接收到基站发送的上行 干扰信息之后, 终端可以将该消息转发给其他基站。 通过上述技术方案, 通过本发明的上述技术方案, 通过基站将频率集合 上的干扰情况发送给其他网元, 可以使其他网元通过该干扰情况进行后续处 理, 避免在相同频率上造成干扰, 降低小区间的干扰, 提升了整个无线通信 系统的性能及频谱利用率。 下面结合具体的实例 1、 实例 2、 实例 3、 实例 4、 实例 5、 实例 6、 实 例 7对图 2所示的方法进行详细说明。 实例 1 在本实例中, 基站 BS-A测量四个频率集合各自的上行干扰值(即, 上 文所述的干 4尤信息)(以 dB 为单位, 优选地, 该值为绝对值), 通过骨干网 ( backhaul, backbone )将四个频率集合各自的上行干 4尤值发送 (发送的上行 干 4尤值可以通过绝对值(干 ·ί尤测量信息)和 /或相对值(干 ·ί尤级别)形式来表 示)给相邻基站 BS-B (即, 上述的其它网元)。 BS-B收到基站 BS-A发送的 相关信息后, 如果发现 BS-A的上行频率集合 FP1上的上行干扰值很大, 则 依据频率集合的上行干扰值降低以基站 BS-A为服务基站的终端在该频率集 合上的发射功率; 同理, 如果发现基站 BS-A的上行频率 FP4上的上行干扰 值很小, 则依据该频率集合的上行干扰值增加以基站 BS-A为服务基站的终 端在该频率集合上的发射功率。 对于其它频率分区, 同样可以采用类似的操 作。 实例 2 在本实例中, 基站 BS-A测量四个频率集合各自的上行干扰值(即, 上 文所述的干 4尤信息), 并将这些值和预先设定的一组阈值比较 (通常可以包含 一个或两个阈值, 此处 支设有两个阈值, 分别是 6dB和 8dB ), 如果某频率 集合上的上行干扰测量值大于 6dB, 则认为该频率集合上受到的上行干扰较 大, 生成干扰指示信息 '01, 后发送给其它基站, 如果某频率集合上的上行 干扰测量值大于 8dB, 则认为该频率集合上受到的上行干扰非常大, 生成干 扰指示比特信息 ' 10, 后发送给其它基站, 假设频率集合 FP1上的上行干扰 为 7dB, 频率集合 FP2上的上行干扰为 10dB , 贝' j BS-A通过骨干网向基站 BS-B发送上行干扰指示信息,该信息中至少包含一个长度为八个比特的比特 序列 '01100000, (通过该比特序列, 能够以相对值的方式表示上行干扰), BS-B收到相关信息后 , 发现 BS-A的上行频率集合 FP1、 FP2上的存在较大 的上行干扰, 则依据该上行干扰值降低以自己为服务基站的终端在这些频率 集合上的发射功率。 对于阈值数量大于两个的情况,其处理过程与 2个阈值情况下的处理方 式类似, 这里不再重复。 实例 3 在本实例中 , 基站 BS-A测量四个频率集合各自的上行干扰值(即, 上 文所述的干 4尤信息), 并将这些值和预先设定的阈值(例如, 预先设定的阈值 为 8dB )进行比较。 支设频率集合 FP2、 FP4上受到的上行干 4尤大于该阈值, 贝 |J BS-A生成比特序列 '0101,, 该比特序列中第一个比特表示 FP1受到的上 行干扰较小,第二个比特表示 FP2受到的上行干扰较大,第三个比特表示 FP3 受到的上行干扰较小, 第四个比特表示 FP4受到的上行干扰较大, 并将该比 特序列携带在上行干扰消息中。
BS-A将上述上行干扰消息发送给终端, 在实施过程中, 终端可以通过 以下方式之一发送该上行干 ·ί尤消息: 广播方式、 组播方式、 单播方式、 空中 接口; 终端接收到该上行干扰消息之后, 才艮据该上行干扰消息控制该终端在 对应的频率集合上的上行发射功率。这里需要说明的是, 该终端不是以 BS-A 为上行月 务小区的终端。 实例 4 在本实例中, 基站 BS-A测量四个频率集合各自的上行干扰值(即, 上 文所述的干扰信息), 并将这些值和预先设定的阈值(8dB ) 比较, 假设频率 集合 FP2、FP4上受到的上行干 4尤大于该阈值,则 BS-A生成比特序列 '0101,, 该序列中第一个比特表示 FP1受到的上行干扰较小, 第二个比特表示 FP2受 到的上行干扰较大, 第三个比特表示 FP3受到的上行干扰较小, 第四个比特 表示 FP4受到的上行干扰较大, 并将该比特序列携带在上行干扰消息中。
BS-A将上述上行干扰消息发送给终端, 在实施过程中, 终端可以通过 以下方式之一发送该上行干 4尤消息: 广播方式、 组播方式、 单播方式、 空中 接口; 终端接收到该上行干扰消息之后 , 终端该上行干扰消息转发给基站 BS-B , BS-B根据该上行干扰消息控制以自己(即 BS-B )为服务基站的终端 在这些频率集合上的发射功率。 实例 5 在本实例中, 基站 BS-A、 BS-B, BS-C分别向自组织网络服务器上报 自己在全部或部分频率集合上接收到的上行干扰信息 (即, 上文所述的干扰 信息), 即 , BS-A向自组织网络服务器上报 BS-A在全部或部分频率集合上 接收到的上行干扰信息 (筒称为上行干扰信息 A ), BS-B向自组织网络服务 器上报 BS-B在全部或部分频率集合上接收到的上行干扰信息 (筒称为上行 干扰信息 B )、 BS-C向自组织网络服务器上报 BS-C在全部或部分频率集合 上接收到的上行干扰信息 (筒称为上行干扰信息 C )。 自组织网络服务器基于上行干扰信息 A、 上行干扰信息 B和上行干扰 信息 C, 以及各基站的负载情况, 确定各基站在各频率集合上的功率控制策 略, 将相关的功率控制策略发送给相应的基站, 即, 自组织网络服务器基于 上行干扰信息 A、 上行干扰信息 B和上行干扰信息 C , 以及各基站的负载情 况, 确定 BS-A在各频率集合上的功率控制策略 (筒称为功率控制策略 A )、 BS-B在各频率集合上的功率控制策略(筒称为功率控制策略 B )、 BS-C在各 频率集合上的功率控制策略, 并将功率控制策略 A发送给 BS-A, 功率控制 策略 B发送给 BS-B , 功率控制策略 C发送给 BS-C。 实例 6 在本实例中 , 自组织网络服务器根据基站的负载情况或特定周期 , 为基 站分配令牌, 获得令牌的基站向相邻基站发送自己在各上行频率集合上受到 的上行干扰情况(即, 上文所述的干扰信息), 相邻基站基于这些信息调整以 自己为服务基站的终端的上行传输功率。 例如 , 自组织网络服务器根据基站 BS-A的负载情况或特定周期, 为 BS-A分配令牌, BS-A获得该令牌后, 向 BS-A的相邻基站 BS-B发送 BS-A在各上行频率集合上受到的上行干扰情况 , BS-B基于该上行干扰情况调整以 BS-B为服务基站的终端的上行传输功率。 上述过程中,获得令牌的基站可主动告知自组织网络服务器释放属于自 己的令牌, 自组织网络服务器也可以根据基站的负载变化情况要求获得令牌 的基站释放令牌。 例如, BS-A可以通过信令消息发送给自组织网络服务器, 让自组织网络服务器释放属于 BS-A的令牌, 自组织网络服务器也可以根据 BS-A的负载变化情况, 要求 BS-A主动释放令牌。 实例 7 在本实例中, 无线通信系统中存在令牌, 获得令牌的基站可在配置时间 间隔内向其它基站发送自己在各上行频率集合上受到的上行干扰信息 (情 况)、 和 /或整个上行频率上的平均上行干扰信息(情况), 获得这些信息的基 站根据上行干扰信息和 /或平均上行干扰信息,调整以自己为服务基站的终端 的上行传输功率。 例如, BS-A获得令牌, BS-A在配置时间间隔内向 BS-B 和 BS-C发送 BS-A在各上行频率集合上受到的上行干扰信息 (情况)、 和 / 或整个上行频率上的平均上行干扰信息 (情况), BS-B根据该上行干扰信息 和 /或平均上行干扰信息, 调整以 BS-B为服务基站的终端的上行传输功率, BS-C根据该上行干扰信息和 /或平均上行干扰信息,调整以 BS-C为服务基站 的终端的上行传输功率。 上述实例中,与上行干扰情况有关的信息中可以由多个频率集合共用一 个值。 通过上述各实例, 避免来在各网元相同频率上造成干扰, 可以降氐小区 间的干扰, 提升整个无线通信系统的性能。 方法实施例二 i设图 2所示的是对采用 IEEE 802.16技术的无线通信系统的下行频率 资源进行频率集合划分的示意图, 当然, 对下行频率资源的划分仍可以才艮据 需要灵活设置, 划分成任意个频率集合。 图 4为在基于图 2的下行可用资源划分方式下,才艮据本发明实施例的干 扰控制信息的传输方法的流程图, 用于对系统进行下行小区间的干扰控制, 如图 4所示, 该流程包括以下处理 (步骤 S402至步骤 S404 ): 步骤 S402, 终端测量下行频率资源的多个频率集合中部分或全部频率 集合上的下行干扰。 步骤 S404, 终端将测量的下行干扰通过下行干扰信息发送给基站, 其 中, 该下行干扰信息包括以下至少之一: 下行干扰级别信息、 下行干扰测量 信息。 在具体实施过程中, 首先, 基站会向终端请求获取下行干扰信息, 终端 根据该请求, 测量下行频率资源的多个频率集合中部分或全部频率集合上的 下行干扰, 并将测量的下行干扰通过下行干扰信息发送给基站; 基站接收该 下行干扰信息 , 并根据下行干扰信息调整以基站作为服务基站的终端的下行 资源分配, 进一步地, 基站可以将下行干扰信息发送给其它网元, 其中, 其 它网元可以包括以下之一: 其它终端、 宏基站、 微基站、 家庭基站, 中继站、 接入服务网、 连接服务网、 自组织网络服务器、 核心网。 通过上述技术方案, 终端将频率集合上的干扰情况发送给网络侧, 相比 于现有技术, 可以使网络侧通过该干 4尤情况进行后续处理, 避免在各网元相 同频率上造成干扰, 可以降低小区间的干扰, 提升整个无线通信系统的性能 及频谱利用率。 下面结合实例 8、 实例 9、 实例 10、 实例 11、 实例 12、 实例 13对图 4 所示的方法进行举例说明。 实例 8 在本实例中 , 终端 MS-A测量各频率集合上的下行干 4尤情况(即 , 上文 所述的干扰信息), 并将各频率集合的上 /下行干扰测量值发送给自己的服务 基站 BS-A; BS-A会根据 MS-A的位置和自己( BS-A )的负载情况, 确定是 否向其它基站请求调整其它基站全部或部分频率集合上的下行传输功率、和 / 或频率集合大小。 实例 9 实例 9与实例 8的不同点在于: 在实例 8中, BS-A -据 MS-A的位置 和自己 (BS-A ) 的负载情况进行后续处理, 在实例 9中, BS-A才艮据频率集 合上的下行干扰测量值大于预先设定的阈值的接收情况和内容, 进行的后续 处理, 即, 实例 8和实例 9给出了基站进行后续处理的两种场景。 在本实例中 , 终端 MS-A测量主频率集合上的下行干 4尤情况(即 , 上文 所述的干 4尤信息), 其中, 该主频率集合可以由 MS-A的月 务基站 BS-A指定 或由标准缺省配置; 如果 MS-A发现主频率集合上的下行干 4尤测量值大于预 先设定的阈值(例如, 预先设定的阈值为 8dB ), 则 MS-A可以通过特定的码 字向 BS-A发送指示主频率集合上的下行干扰测量值大于预先设定的阈值的 通知信息, BS-A根据该通知信息的接收质量、 和 /或通知信息的内容, 确定 是否需要向其它基站发送请求 , 请求其它基站降低在该频率集合上的下行发 射功率。 例如, BS-A接收来自 MS-A的通知信息后, 发现该通知信息的接 收质量高, 则请求其它基站降低在该频率集合上的下行发射功率,反之亦然。 实例 10 实例 10与实例 9的不同点在于:在实例 9中, MS-A向其月 务基站 BS-A 发送相关信息 , BS-A根据该相关信息请求其他基站 (除 BS-A之外的基站) 进行相应地处理, 在实例 10中, MS-A直接向其他基站发送相关信息, 其他 基站 4艮据该相关信息进行相应地处理。 在本实例中 , 终端 MS-A测量主频率集合上的下行干 4尤情况(即 , 上文 所述的干扰信息), 该 MS-A的服务基站为 BS-A, 其中, 该主频率集合可以 由 MS-A的月 务基站 BS-A指定或由标准缺省配置; 如果 MS-A发现主频率 集合上的下行干扰测量值大于预先设定的阈值 (例如, 预先设定的阈值为 8dB ),则 MS-A可以通过特定的码字向除 BS-A之外的其他基站(例如, BS-B、 BS-C等, 下面以 BS-B为例进行说明)发送指示主频率集合上的下行干扰测 量值大于预先设定的阈值的通知信息, BS-B才艮据该通知信息的接收质量、和 /或信息内容, 确定是否需要降低在该频率集合上的下行发射功率。 例如, BS-B接收来自 MS-A的通知信息后,发现该通知信息的接收质量高,则 BS-B 会降低在该频率集合上的下行发射功率, 反之亦然。 实例 11 在本实例中 , 终端 MS-A测量主频率集合上的下行干 4尤情况(即 , 上文 所述的干 4尤信息), 其中, 该主频率集合可以由 MS-A的月 务基站 BS-A指定 或由标准缺省配置; 如果 MS-A发现主频率集合上的下行干 4尤测量值大于预 先设定的阈值(例如, 预先设定的阈值为 8dB ), 则 MS-A可以通过特定的码 字向网络侧 (例如, BS-A, 或者, 除 BS-A之外的其他基站)发送指示主频 率集合上的下行干扰测量值大于预先设定的阈值的通知信息。 其中, 码字的发送功率依赖于 MS-A 在该主频率集合上受到的干 4尤大 小, 通常情况下, MS-A 在该主频率集合上受到的干扰越大, 码字的发射功 率越大, MS-A 在该主频率集合上受到的干扰越大。 如果码字的发射功率越 小, 除 BS-A之外的其他基站(例如, BS-B、 BS-C等, 下面以 BS-B为例进 行说明)根据该通知信息的接收质量、 和 /或信息内容, 确定是否需要降低在 该频率集合上的下行发射功率。 例如, BS-B接收来自 MS-A的通知信息后, 发现该通知信息的接收质量高, 则 BS-B会降低在该频率集合上的下行发射 功率, 反之亦然。 实例 12 在本实例中,基站 BS-A通过下行信令要求终端 MS-A(靠近基站 BS-B ) 测量全部或部分频率集合上的下行干 4尤情况(signal strength measurement of neighbor BS )。
MS-A根据 BS-A的要求, 测量相关频率集合上的下行干扰情况, 获取 干扰测量结果(即, 上文所述的干扰信息), 并将干扰测量结果上报给 BS-A; BS-A根据该干扰测量结果,确定对自己产生下行干扰的基站 BS-B在相关频 率集合上的下行功率调整量, 并将该下行功率调整量通过骨干网传输给 BS-B。 实例 13 实例 13与实例 12的不同点在于: 在实例 13中, 具体指出了频率集合 FP4。 在本实例中,基站 BS-A通过下行信令要求终端 MS-A(靠近基站 BS-B ) 测量频率集合 FP4上的下行干扰情况 (即, 上文所述的干扰信息)。
MS-A根据 BS-A的要求, 测量相关频率集合上的下行干扰情况, 获取 测量结果, 并将测量结果上报给 BS-A; BS-A根据该测量结果, 确定对自己 产生下行干扰的基站 BS-B在频率集合 FP4上是否需要调整下行功率, 如果 需要调整, 则 BS-A通过骨干网向 BS-B发送请求, 请求 BS-B降低 BS-B在 FP4上的下行发射功率。 上述实例中,与上行干扰情况有关的信息中可以由多个频率集合共用一 个值。 方法实施例三 才艮据本发明实施例, 提供一种干扰控制信息的传输方法, 其中, 该方法 包括: 受到干扰的终端向其服务基站4艮告干扰信息, 干扰信息中包括: 不允 许终端接入的全部或部分基站( Inaccessible Base Station )的全部或部分系统 参数信息, 其中, 上述不允许终端接入的基站可以为不允许终端接入的全部 基站, 也可以为不允许终端接入的部分基站, 并且, 该不允许终端接入的基 站靠近该终端, 并可能对该终端造成干 4尤, 需要说明, 所述不允许终端接入 的基站可以是不能为所述终端提供服务的基站 , 或者是不允许所述终端发接 入试探或测距码的基站, 或者是在接入过程中拒绝所述终端接入的基站。 在具体实施过程中,终端接近或位于不允许其接入的基站覆盖范围的情 况下, 终端向其服务基站报告干扰信息, 该服务基站会接收干扰信息, 并根 据干扰信息向家庭基站发送功率请求信息 , 要求家庭基站降低相应频率资源 上的发射功率或禁止使用相应频率资源。 其中, 干扰信息中至少包括不允许 终端接入的基站的全部或部分系统参数信息, 该干扰信息可以包括以下至少 之一: 终端受到干扰的频率资源描述信息、 干扰测量值、 干扰级别信息, 系 统参数信息包括以下至少之一: 基站标识、 基站的类型信息 (也称小区类型 信息)、 基站的工作模式信息、 基站的载频信息、 基站的带宽信息; 上述不允 许终端接入的基站为以下之一: 家庭基站、 宏基站、 微基站、 中继站。 图 5是根据方法实施例三的系统进行下行小区间干扰控制的流程图,如 图 5所示, 包括以下处理 (步骤 S502至步骤 S504 )。 步骤 S502, 受到不允许其接入的家庭基站的干扰的终端向自己的服务 基站报告干扰信息 , 干扰信息中至少包括不允许终端接入的家庭基站的全部 或部分系统参数信息。 步骤 S504, 服务基站收到干扰信息后进行后续处理。 通过上述技术方案, 终端将干扰情况发送给其服务基站, 相比于现有技 术, 可以使网络侧通过该干扰情况进行后续处理, 避免在各网元相同频率上 造成干扰, 可以降低小区间的干扰, 提升整个无线通信系统的性能及频 i普利 用率。 下面结合实例 14、 实例 15对图 5所示的方法进行举例说明。 实例 14 在本实例中 ,终端 MS-A靠近处于 close状态的家庭基站 Femtocell BS-A 且 Femtocell BS-A不允许 MS-A接入。 假设 MS-A的服务基站为 BS-B (该 BS-B可以为以下之一: 宏基站、 微基站、家庭基站、中继站), MS-A通过测量下行频率资源上的干扰情况(即, 上文所述的干扰信息),例如, MS-A会测量频率集合的干扰情况,如果 MS-A 发现频率集合 FP2上受到的下行干扰很大(大于预定阈值), MS-A会将相关 干扰信息上报给 BS-B或上层网元 ( Network ), 其中, 该干扰信息中携带有 产生干扰的家庭基站 Femtocell BS-A的相关参数信息和频率集合信息 , 该相 关参数信息可以为 Femtocell BS-A的基站标识、 Femtocell BS-A的基站类型 等信息; BS-B或上层网元获取该干扰信息后, 会向 Femtocell BS-A发送请 求,请求 Femtocell BS-A减少 Femtocell BS-A在频率集合 FP2上的发射功率, 来控制小区间干 ·ί尤。 实例 15 实例 15与实例 14的不同点在于: 在实例 14中, 终端会测量出频率集 合的干扰情况, 使得网络侧对频率集合上的发射功率进行控制, 在实例 15 中, 终端会测量出 LRU的干扰情况, 使得网络侧对 LRU上的发射功率进行 控制。 在本实例中 ,终端 MS-A靠近处于 close状态的家庭基站 Femtocell BS-A 且 Femtocell BS-A不允许 MS-A接入。 假设 MS-A的服务基站为 BS-B (该 BS-B可以为以下之一: 宏基站、 微基站、家庭基站、中继站), MS-A通过测量下行频率资源上的干扰情况(即, 上文所述的干扰信息), 例如, MS-A会测量逻辑资源单元(Logical Resource Unit, 筒称为 LRU )的干 4尤情况。 如果 MS-A检测出频率资源 LRU1 ~ LRU4 上受到的下行干扰很大 (大于预定阈值), MS-A 会将相关干扰信息上报给 BS-B 或上层网元 (Network ), 其中, 该干 4尤信息中携带有产生干 4尤的家庭 基站 Femtocell BS-A的相关参数信息和频率集合信息, 该相关参数信息可以 为 Femtocell BS-A的基站标只、 Femtocell BS-A的基站类型等信息; BS-B或 上层网元获取该干 4尤信息后, 会向 Femtocell BS-A发送请求, 请求 Femtocell BS-A减少 Femtocell BS-A在频率集合 LRU1 ~ LRU4上的发射功率, 来控制 小区间干扰。 方法实施例四 才艮据本发明实施例, 提供一种干扰控制信息的传输方法, 其中, 该方法 包括: 终端检测出其受到除终端的服务基站之外的其它基站的干扰最小的频 率资源, 并将该频率资源的信息发送给服务基站, 其中, 该频率资源的信息 可以包括检测的频率资源的位置信息, 干 4尤信息, 信道质量信息, 信道状态 信息。 在具体实施过程中 ,终端检测其 ^务基站之外的全部或部分其它基站对 终端产生下行干扰最小的频率资源 , 并将检测的频率资源的信息携带在消息 中发送给服务基站, 其中, 服务基站可以包括以下至少之一: 宏基站、 微基 站、 家庭基站、 中继站, 上述其它基站可以包括以下至少之一: 宏基站、 微 基站、 家庭基站、 中继站。 在上述方法中,在终端将检测的频率资源通过频率资源信息发送给服务 基站之后 , 服务基站根据频率资源信息为终端选择用于传输数据的资源。 图 6是才艮据方法实施例三的系统进行下行小区间干扰控制的流程图,如 图 6所示, 包括以下处理 (步骤 S602至步骤 S604 )。 步骤 S602, 终端检测出受到不是其服务基站的下行干扰最小的频率资 源并将相关频率资源信息报告给其服务基站; 步骤 S604, 服务基站依据该信息为终端选择合适的资源传输下行数据。 通过上述技术方案, 终端将干扰最小的频率资源发送给其服务基站, 相 比于现有技术, 可以使网络侧通过该干扰情况进行后续处理, 避免在各网元 相同频率上造成干扰, 可以降低小区间的干扰, 提升整个无线通信系统的性 能及频谱利用率。 下面结合实例 16、 实例 17对图 6所示的方法进行举例说明。 实例 16 在本实例中, 终端 MS-A的服务基站为宏基站 BS-A, 并且, MS-A靠 近家庭基站 Femtocell BS-A, 家庭基站 Femtocell BS-B、 宏基站 BS-B。
MS-A 通过测量下行频率资源上的干 4尤情况 (即, 上文所述的干 4尤信 息 ), 检测出频率资源 LRU8 ~ LRU11受到 MS-A周围的家庭基站和 /或宏基 站的干扰最小 , 则 MS-A将携带有 LRU8 ~ LRU 11的频率资源信息上报给服 务基站 BS-A, BS-A获取该频率资源, 并根据以下信息至少之一: 频率资源 信息、 业务情况、 负载情况、 终端分布情况, 为 MS-A分配合适的下行资源。 实例 17 实例 17与实例 16的不同点在于: 在实例 16中, 终端的月 务基站为宏 基站 , 在实例 17中, 终端的服务基站为家庭基站 , 可以看出, 无论宏基站 , 还是家庭基站, 均可以才艮据来自终端的频率资源, 为终端分配合适的下行资 源。 在本实例中 ,终端 MS-A的服务基站为家庭基站 Femtocell BS-A,并且,
MS-A靠近家庭基站 Femtocell BS-B、 Femtocell BS-C、 宏基站 BS-B。
MS-A 通过测量下行频率资源上的干 4尤情况 (即, 上文所述的干 4尤信 息 ), 检测出频率资源 LRU8 ~ LRU11受到 MS-A周围的家庭基站和 /或宏基 站的干扰最小 , 则 MS-A将携带有 LRU8 ~ LRU 11的频率资源信息上报给服 务基站 Femtocell BS-A, Femtocell BS-A获取该频率资源, 并才艮据以下信息 至少之一: 频率资源信息、 业务情况、 负载情况、 终端分布情况, 为 MS-A 分配合适的下行资源。 需要指出, 上述实例 1 ~ 17中, 干扰测量信息至少包括以下之一: 干扰 均值、 干扰方差、 信干噪比均值、 信干噪比方差、 信噪比均值、 信噪比方差、 信号质量信息。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 或 者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制 作成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软 件结合。 借助于本发明的上述技术方案 , 通过将上 /下行频率资源分为多个频率 集合, 由基站 /终端测量这些频率集合中的上 /下行干 4尤情况, 并将测量的结 果进行发送, 使得之后在进行上 /下行传输时能够根据测量的结果进行调整; 具体地, 对于基站对于非其服务的终端所造成的下行干扰、 以及家庭基站对 其非授权终端造成的下行干扰,终端会将干扰的相关信息报告给其服务基站, 进而对终端分配新的资源或使造成干扰的基站进行下行发射调整, 从而避免 在相同频率上造成干扰, 能够达到降低小区间干扰、 同时提升蜂窝系统的频 谱利用效率。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和 原则之内, 所作的任何修改、 等同替换、 ?丈进等, 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种千扰控制信息的传输方法, 其特征在于, 包括:
第一通信节点将千扰信息发送给第二通信节点, 其中, 所述千扰信 息用于描述构成频率资源的多个频率集合中, 部分或全部频率集合上的 千扰。
2. 根据权利要求 1所述的方法, 其特征在于, 所述频率资源包括以下至少 之一: 全部下行频率资源、 部分下行频率资源、 全部上行频率资源、 部 分上行频率资源。
3. 根据权利要求 1所述的方法, 其特征在于, 所述第一通信节点将获取的 所述千扰通过所述千扰信息发送给所述第二通信节点的方式为所述第一 通信节点通过空口、 和 /或骨千网向所述第二通信节点发送所述千扰信 息。
4. 根据权利要求 1所述的方法, 其特征在于, 所述第一通信节点通过以下 方式之一将获取的所述千扰通过所述千扰信息发送给所述第二通信节 点: 广播方式、 组播方式、 单播方式。
5. 根据权利要求 1所述的方法, 其特征在于, 在所述第一通信节点将千扰 信息发送给所述第二通信节点之后, 进一步包括:
所述第二通信节点根据所述千扰信息调整所述部分或全部频率集 合中物理资源的分配情况、 和 /或在所述物理资源上传输数据时所使用的 传输功率、 和 /或所述第二通信节点进一步转发所述千扰信息。
6. 根据权利要求 1所述的方法, 其特征在于, 在所述第一通信节点发送所 述千扰信息之前, 进一步包括:
所述第二通信节点向所述第一通信节点发送请求获取所述千扰信 息。
7. 根据权利要求 1至 6中任一项所述的方法, 其特征在于, 所述千扰信息 包括以下至少之一: 千扰级别信息、 千扰测量信息。
8. 根据权利要求 1至 6中任一项所述的方法, 其特征在于, 所述第一通信节点包括以下之一: 终端、 宏基站、 微基站、 家庭基 站, 中继站、 接入服务网、 连接服务网、 自组织网络服务器、 核心网; 所述第二通信节点包括以下之一: 终端、 宏基站、 微基站、 家庭基 站, 中继站、 接入服务网、 连接服务网、 自组织网络服务器、 核心网。
9. 一种千扰控制信息的传输方法, 其特征在于, 包括:
受到千扰的终端向其服务基站报告千扰信息, 其中, 所述千扰信息 中包括: 不允许所述终端接入的基站的全部或部分系统参数信息。
10. 根据权利要求 9所述的方法, 其特征在于, 所述终端靠近所述不允许其 接入的基站。
11. 根据权利要求 9所述的方法, 其特征在于, 所述终端受到所述不允许其 接入的基站的千扰。
12. 根据权利要求 9所述的方法, 其特征在于, 在所述终端报告所述千扰信 息之后, 进一步包括:
所述服务基站接收所述千扰信息,并根据所述千扰信息向所述不允 许所述终端接入的基站发送功率请求信息, 要求所述不允许所述终端接
13. 根据权利要求 9至 12中任一项所述的方法, 其特征在于, 所述千扰信息 包括以下至少之一: 所述终端受到千扰的频率资源描述信息、 千扰测量 值、 千扰级别信息。
14. 根据权利要求 9至 12中任一项所述的方法, 其特征在于, 所述系统参数 信息包括以下至少之一: 基站标识、 基站的类型信息、 基站的工作模式 信息、 基站的载频信息、 基站的带宽信息。
15. 根据权利要求 9至 12中任一项所述的方法, 其特征在于, 所述不允许所 述终端接入的基站为以下之一: 家庭基站、 宏基站、 微基站、 中继站。
16. 根据权利要求 9所述的方法, 其特征在于, 所述终端受到的千扰大于预 定阈值。
17. —种千扰控制信息的传输方法, 其特征在于, 包括:
终端检测出千扰最小的频率资源,并将所述频率资源的信息发送给 所述终端的服务基站。
18. 根据权利要求 17所述的方法, 其特征在于, 所述频率资源上的千扰来自 于除所述终端的 艮务基站之外的其它基站。
19. 根据权利要求 17所述的方法, 其特征在于, 在所述终端将所述频率资源 的信息发送给所述服务基站之后, 进一步包括:
所述服务基站根据所述频率资源信息为所述终端选择用于传输数 据的资源。
20. 根据权利要求 17至 19中任一项所述的方法, 其特征在于,
所述服务基站包括以下至少之一: 宏基站、 微基站、 家庭基站、 中 继站;
所述其它基站包括以下至少之一: 宏基站、 微基站、 家庭基站、 中 继站。
21. 根据权利要求 17至 19中任一项所述的方法, 其特征在于, 所述频率资 源的信息包括以下至少之一: 所述频率资源的位置信息、 千扰信息、 信 道质量信息、 信道状态信息。
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