WO2014019229A1 - 基站分群方法、基站、系统、终端分群方法、终端、机器可读程序和存储介质 - Google Patents
基站分群方法、基站、系统、终端分群方法、终端、机器可读程序和存储介质 Download PDFInfo
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- WO2014019229A1 WO2014019229A1 PCT/CN2012/079674 CN2012079674W WO2014019229A1 WO 2014019229 A1 WO2014019229 A1 WO 2014019229A1 CN 2012079674 W CN2012079674 W CN 2012079674W WO 2014019229 A1 WO2014019229 A1 WO 2014019229A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
Definitions
- Base station grouping method base station, system, terminal grouping method, terminal, machine readable program and storage medium
- the present invention relates to the field of wireless communications, and in particular, to a base station grouping method, a base station, a system, a terminal grouping method, a terminal, a machine readable program, and a storage medium. Background technique
- the environment of wireless communication is more complicated.
- the signal fading caused by environmental factors makes the coverage of the macro-NodeB (mNB) signal in the room poor, and even the dead zone of the communication signal is reduced.
- the wireless link channel capacity is more complicated.
- HeNB home NodeB
- femtocell a macro base station
- Microcell another type of base station that appears after the microcells and picocells, representing the new mobile communication concept. It is a small, low-power base station device that targets residential and enterprise environments, addresses the problem of inadequate coverage of Acer's signal, and increases user data transmission rates.
- HeNB The structure of the HeNB is shown in Figure 1. It communicates wirelessly with the terminal and connects to the mobile communication network of the operator using an ip-based wired network. HeNB has various standards and support for CDMA, GSM, UMTS, etc.
- 2G, 2.5G, 3G products are in the same standard and same frequency band as other mobile base stations of the carrier, so mobile terminals such as mobile phones can be used universally.
- the home base station brings a lot of interference while bringing high-quality data transmission.
- the spectrum resource allocation of the home base station is the same as that used by the macro base station, so there is interference between the macro base station and the home base station (mNB to HeNB), the home base station, and the home base station (HeNB to HeNB).
- the mNB to HeNB interference mainly refers to the uplink interference of the macro base station user (mUE) to the home base station (HeNB), the uplink base 4 of the home base station user (HUE) to the macro base station (mNB), and the downlink dry 4.
- the interference from the HeNB to the HeNB refers to the uplink interference of the home base station user (HUE) to other HeNBs and the downlink interference of the HeNB to other cell HUEs.
- the methods for handling the interference problem of the home base station are divided into two methods: power control and resource management.
- the current 3GPP protocol TS25.967 R10 version is more concerned with the power control method.
- the power control method protects the uplink and downlink signal to interference and noise ratio of the user by adjusting the transmission power of the user or the base station, so as to achieve the purpose of increasing the throughput.
- the resource management method avoids the phenomenon of overlapping of wireless signal resources by using techniques such as time division multiplexing, frequency division multiplexing, and code division multiplexing in the wireless channel.
- the interference control method mainly has the following disadvantages:
- Ignore interference from HeNB to HeNB is very limited, and these researches focus on the uplink interference of the macro base station users to the home base station users and the downlink interference of the home base station users to the macro base station users.
- a large number of researchers have positioned the interference scene as a macro.
- the research scenario is set or disguised as a macro base station to a home base station. This research method lacks complete consideration of the source of interference.
- the technical problem to be solved by the present invention is to provide a technical solution for the problem of interference between a base station and a base station, which can accurately determine which base stations have interference between them in an environment where the base stations are densely deployed, and divide the interference between the base stations.
- the base station group is used to provide reference for subsequent inter-base station interference control methods.
- the present invention provides a method for grouping a base station, including: acquiring signal strengths of other base stations in a cell of a current base station, and/or the other base station and/or a terminal served by the other base station to the a path loss of the current base station; determining, according to the signal strength and/or the path loss, whether there is interference between the other base station and the current base station; determining whether there is interference between the other base station and the current base station As a result, the interfering base station group of the current base station is determined.
- a base station including: a signal strength/path loss acquisition module, acquiring signal strengths of other base stations in a cell of a current base station, and/or the other base stations and/or Determining, by the interference determining module, whether there is interference between the other base station and the current base station according to the signal strength and/or the path loss; the group determining module, Determining an interfering base station group of the current base station according to a determination result of whether there is interference between the other base station and the current base station.
- an interfering base station group can be established, and then the established interfering base station group is provided to reduce inter-base station interference
- the present invention also provides a system, including a base station and a terminal, wherein a current base station in the base station acquires signal strengths of other base stations in the current base station cell, and/or the other base stations and/or are a path loss of the terminal served by the other base station to the current base station, and determining, according to the signal strength and/or the path loss, whether there is interference between the other base station and the current base station, and the other base station and the A determination result of whether there is interference between the current base stations, and determining an interference base station group of the current base station.
- an interfering base station group can be established, and then the established interfering base station group is provided to reduce inter-base station interference.
- the present invention also provides a machine readable program for causing a machine to perform the above-described base station grouping method in the base station when the program is executed in a base station.
- the present invention also provides a storage medium storing a machine readable program, wherein the machine readable program causes a machine to perform the above base station grouping method in a base station.
- the present invention also provides a terminal grouping method, including: acquiring signal strength of other terminals, and/or path loss of the other terminal to the current terminal; determining, according to the signal strength and/or the path loss, Whether there is interference between the other terminal and the current terminal; determining the interference terminal group of the current terminal according to the determination result of whether there is interference between the other terminal and the current terminal.
- determining whether the interference exists by using the signal strength and/or the path loss, determining the interference terminal group according to the judgment result provides an effective organization model for reducing the interference between the terminals.
- the present invention also provides a machine readable program, wherein when the program is executed in a terminal, the program causes the terminal to perform a terminal grouping method as described in any one of the above technical solutions.
- the present invention also provides a storage medium storing a machine readable program, wherein the machine readable program enables The terminal performs the terminal grouping method as described in any one of the foregoing technical solutions.
- the present invention also provides a terminal, comprising: an obtaining module, configured to acquire signal strength of other terminals, and/or path loss of the other terminal to the terminal; and an interference judging module, according to the signal strength and/or Determining whether there is interference between the other terminal and the terminal; the group determining module determining the interference terminal group of the terminal according to the determination result of whether there is interference between the other terminal and the terminal .
- the terminal of the present invention it is possible to determine the interference terminal group of the terminal, and provide an effective organization model for reducing interference between the terminals.
- FIG. 1 is a schematic structural diagram of a HeNB in the related art
- FIG. 2 shows a flow chart of a base station grouping method according to an embodiment of the present invention
- Figure 3 shows a block diagram of a base station in accordance with an embodiment of the present invention
- Figure 4 shows a block diagram of a system in accordance with an embodiment of the present invention
- FIG. 5A is a schematic diagram showing a research scene location of a base station grouping method according to an embodiment of the present invention
- FIG. 5B is a schematic diagram showing a group model of a base station grouping method according to an embodiment of the present invention
- 6A is a flowchart showing a specific implementation of constructing an uplink home base station definition 1 and definition 2 in a densely deployed home base station environment according to an embodiment of the present invention
- FIG. 6B is a schematic diagram showing HeNB dense deployment of a base station grouping method according to an embodiment of the present invention
- FIG. 7 is a flowchart showing a terminal grouping method according to an embodiment of the present invention
- Figure 8 shows a block diagram of a terminal in accordance with an embodiment of the present invention. detailed description
- a self-organizing model for uplink and downlink interference control between densely deployed home base stations is provided for a change brought by the new technology of the home base station to the existing communication network.
- the interference resolution methods such as power control and resource allocation for the HeNB to HeNB uplink and downlink interference problem have strong self-organization and independence, and reduce the complexity on the network side.
- the present invention overcomes the shortcomings of low-power densely deployed base stations (such as home base stations), first analyzes the scenario of densely deployed home base stations, proposes the concept of a home base station subgroup and a home base station group, and mines between the home base stations. Correlation of interference exists; Secondly, the design method and construction conditions of the family base station group are designed to reflect the dynamic characteristics and self-organization of the family base station group.
- FIG. 2 shows a flow chart of a method of grouping a base station according to an embodiment of the present invention.
- a method for grouping a base station includes: Step 202: Acquire a signal strength of another base station in a cell of a current base station, and/or the other base station and/or by the other base station Step 204, determining, according to the signal strength and/or the path loss, whether there is interference between the other base station and the current base station; Step 206, according to the other base station Determining whether there is interference between the current base station, determining an interference base station group of the current base station.
- an interfering base station group can be established, and then the established interfering base station group is provided to reduce inter-base station interference.
- An effective organizational model by acquiring the signal strengths of other base stations and related path losses in the current base station cell, an interfering base station group can be established, and then the established interfering base station group is provided to reduce inter-base station interference.
- the acquiring the signal strengths of the other base stations in the current base station cell includes: measuring, by using a receiver module (also referred to as a measurement module) in the current base station, signal strength of the other base stations And/or measuring a signal strength of the other base station by a sensor module disposed in the current base station cell; and/or receiving a signal strength of the other base station from a terminal served by the current base station, where The signal strength of other base stations is measured by the terminal served by the current base station.
- a receiver module also referred to as a measurement module
- the signal can be detected by the terminal itself, which is relatively simple to implement, and can also be used for arranging the sensor at a suitable position in the cell for accurate measurement.
- the terminal can be fully utilized to detect signals using the terminal.
- the path loss of the terminal to the current base station includes: receiving transmit power of the other base station from the other base station; determining, according to signal strength and transmit power of the other base station, the other base station and/or being used by the other base station The path loss of the serving terminal to the current base station.
- the path loss may be obtained by calculating a ratio of a signal strength of the other base station to a transmit power of the other base station received by the current base station, and further, by using the path loss and no sound Comparing the minimum value of the path loss of the other base station and/or the terminal served by the other base station to the current base station during interference, the other base station and/or the terminal served by the other base station may be determined. Whether there is interference to the current base station.
- the acquiring the path loss of the other base station and/or the terminal served by the other base station to the current base station comprises: receiving the current base station and/or receiving the current base station from the other base station.
- the path loss of the terminal served by the current base station to the other base station comprises: determining the other base station and/or according to the path loss of the current base station and/or the terminal served by the current base station to the other base station. The path loss of the terminal served by the other base station to the current base station.
- the current base station since the interferences are mutual, the current base station and the other base stations are in opposite positions when forming interference, and because the deployment scope of the low-power base station is small, that is, the interference is generated from the probability. The degree of interference between the two parties to the other party is at a considerable level. Therefore, for the path loss, the current base station may also accept the other base station and/or the terminal served by the current base station. The path loss of other base stations is determined to further reduce the computational load of the current base station.
- the method further includes: updating, according to the information about the interfering base station group of the other base station, sent by the other base station, the interfering base station group of the current base station.
- the current base station can make a more reasonable interference base station group for itself by combining the interference base station group information of other base stations.
- the method further includes: transmitting, to the other base stations in the interfering base station group of the current base station, information related to the interfering base station group of the current base station.
- a distributed control method is implemented, that is, the base station transmits its own base station group information, and updates its own interfering base station group according to the received base station group information.
- the method further includes: transmitting information related to the interfering base station group of the current base station to a specific base station and/or a specific server or a network unit; receiving from the specific base station and/or the specific network device New information related to the interfering base station group to be updated according to the new information related to the interfering base station group The interfering base station group of the current base station.
- the interfering base station group may be constructed by means of centralized control, that is, all relevant information of the interfering base station group with the current base station is concentrated by a specific base station and/or a specific network device, thereby reducing complexity.
- the information exchange process mitigates the information processing pressure of the current base station.
- the method further includes: receiving, by the other base station, information of the interference base station group of the other base station; according to information of the interference base station group of the other base station, and the interference base station group of the current base station; And updating the interfering base station group of the current base station and the other base station; and transmitting information of the interfering base station group of the other base station to the other base station.
- the interfering base station group may be constructed by using a distributed control manner, that is, each base station establishes an interfering base station group together for the center, and collects related information of the interfering base station group of other base stations, and according to This updates its own interfering base station group. In this way, through the distributed information interaction, the interfering base station group can be constructed more timely and effectively.
- the updating comprises: taking a union of the interfering base station group of the other base station and the interfering base station group of the current base station, as an updated interfering base station group of the current base station.
- any one of the interfering base station groups causes interference to at least another base station in the interfering base station group, and therefore,
- the information about the interfering base station group of the other base station that is sent by the other base station, and further the base station that has an interference relationship with any one of the interfering base station groups of the current base station is included in the interfering base station group of the current base station, And continuously updating the interfering base station group of the current base station, until a new base station that can join the interfering base station group of the current base station is no longer found, that is, a stable interfering base station group of the current base station is constructed, Reducing interference between the base stations provides an efficient organizational model.
- the current base station communicates with the other base station through a wired and/or wireless link.
- the communication between the base stations can be performed by wired or wireless, and finally, the data interaction can be successfully completed.
- the method further includes: sending, by the current base station, a signal according to a predetermined transmit power.
- the base station can send a test signal according to a certain power, and the other base station in the neighboring cell or the terminal in the cell can measure the signal, and finally complete the base station grouping based on the measurement result.
- the method further includes: detecting whether a terminal exists in the current base station cell, And performing the step of acquiring the signal strength of the other base station in the current base station cell, and/or the path loss of the other base station to the current base station, only when the terminal exists in the current base station cell.
- the base station cell in which the terminal does not exist does not cause interference to other base stations
- the base station when the other base station establishes the interfering base station group, the base station may be absent, and therefore, the The base station constructs the interfering base station group, and thus does not have to perform the steps of acquiring other base station signal strengths and corresponding path losses in its cell.
- Figure 3 shows a block diagram of a base station in accordance with an embodiment of the present invention.
- a base station 300 includes: a signal strength/path loss acquisition module 302, acquiring signal strengths of other base stations in a cell of a current base station, and/or the other base stations and/or The path loss of the terminal served by the other base station to the current base station; the interference determining module 304, determining, according to the signal strength and/or the path loss, whether there is interference between the other base station and the current base station; The determining module 306 determines the interfering base station group of the current base station according to the determination result of whether there is interference between the other base station and the current base station.
- an interfering base station group can be established, and the established interfering base station group is effectively provided for reducing interference between the base stations.
- the signal strength/path loss acquisition module 302 measures the signal strength of the other base stations by using a receiver module (also referred to as a measurement module) in the current base station; and/or The signal strength/path loss acquisition module 302 measures the signal strength of the other base stations by a sensor module disposed in the current base station cell; and/or the signal strength/path loss acquisition module 302 is from the current The terminal served by the base station receives the signal strength of the other base station, wherein the signal strength of the other base station is measured by the terminal served by the current base station.
- a receiver module also referred to as a measurement module
- the signal can be detected by the terminal itself, which is relatively simple to implement, and can also be used for arranging the sensor at a suitable position in the cell for accurate measurement.
- the terminal can be fully utilized to detect signals using the terminal.
- the signal strength/path loss acquisition module 302 receives the transmit power of the other base station from the other base stations, and determines the other according to the signal strength and the transmit power of the other base stations. The path loss of the base station and/or the terminal served by the other base station to the current base station.
- the path loss may be calculated by calculating the signal strength of the other base station.
- the ratio of the transmit powers of the other base stations received by the former base station is obtained, and the other base stations and/or the terminals served by the other base stations to the current base station are further used when the path loss and the non-sound interference occur.
- the minimum values of the path losses it can be determined whether the other base stations and/or terminals served by the other base stations have interference with the current base station.
- the signal strength/path loss acquisition module 302 receives, from the other base stations, path loss of the current base station and/or the terminal served by the current base station to the other base station, according to a path loss of the current base station and/or a terminal served by the current base station to the other base station, and determining a path loss of the other base station and/or a terminal served by the other base station to the current base station.
- the current base station since the interferences are mutual, the current base station and the other base stations are in an equal position when forming interference, that is, the degree of interference between any one of the two sides that theoretically generates interference to the other side is Is equal, therefore, for the path loss, the current base station may also determine by accepting the path loss of the other base station and/or the terminal served by the current base station to the other base station, thereby reducing the current The computing burden of the base station.
- the group determining module 306 further updates the interfering base station group of the current base station according to the information about the interfering base station group of the other base station that is sent by the other base station.
- the current base station can make a more reasonable interference base station group for itself by combining the interference base station group information of other base stations.
- the group determining module 306 further transmits information related to the interference base station group of the current base station to other base stations in the interfering base station group of the current base station.
- a distributed control method is implemented, that is, the base station transmits its own base station group information, and updates its own interfering base station group according to the received base station group information.
- the group determining module 306 further transmits information related to the interfering base station group of the current base station to a specific base station and/or a specific server or a network unit, and from the specific base station and/or Or the specific network device receives new information related to the interfering base station group to update the interfering base station group of the current base station according to the new information related to the interfering base station group.
- the interfering base station group may be constructed by means of centralized control, that is, all relevant information of the interfering base station group with the current base station is concentrated by a specific base station and/or a specific network device, thereby reducing complexity.
- the information exchange process mitigates the information processing pressure of the current base station.
- the group determining module 306 receives the other from the other base stations.
- Information of the interfering base station group of the base station, updating the interfering base station group of the current base station and the other base station according to the information of the interfering base station group of the other base station, and the interfering base station group of the current base station, and the other The information of the interfering base station group of the base station is sent to the other base stations.
- the interfering base station group may be constructed by using a distributed control manner, that is, each base station establishes an interfering base station group together for the center, and collects related information of the interfering base station group of other base stations, and according to This updates its own interfering base station group. In this way, through the distributed information interaction, the interfering base station group can be constructed more timely and effectively.
- the group determining module 306 takes the union of the interfering base station group of the other base station and the interfering base station group of the current base station as the interfering base station group of the updated current base station.
- any one of the interfering base station groups causes interference to at least another base station in the interfering base station group, and therefore,
- the information about the interfering base station group of the other base station that is sent by the other base station, and further the base station that has an interference relationship with any one of the interfering base station groups of the current base station is included in the interfering base station group of the current base station, And continuously updating the interfering base station group of the current base station, until a new base station that can join the interfering base station group of the current base station is no longer found, that is, a stable interfering base station group of the current base station is constructed, Reducing interference between the base stations provides an efficient organizational model.
- the current base station communicates with the other base station through a wired and/or wireless link.
- the communication between the base stations can be performed by wired or wireless, and finally, the data interaction can be successfully completed.
- the method further includes: a transmit power control module 308, configured to control the current base station to send a signal according to a predetermined transmit power.
- the base station can send a test signal according to a certain power, and the other base station in the neighboring cell or the terminal in the cell can measure the signal, and finally complete the base station grouping based on the measurement result.
- the method further includes: a detecting module 310, detecting whether a terminal exists in the current base station cell, and starting the signal strength/path loss acquiring module only when the terminal exists in the current base station cell 302.
- the base station cell in which the terminal does not exist does not cause interference to other base stations
- the base station when the other base station establishes the interfering base station group, the base station may be absent, and therefore, the Base The station constructs the interfering base station group, and thus does not have to perform the steps of acquiring other base station signal strengths and corresponding path losses in its cell.
- Figure 4 shows a block diagram of a system in accordance with an embodiment of the present invention.
- a system 400 includes a base station 402 and a terminal 404, wherein a current base station in the base station 402 acquires signal strengths of other base stations in the current base station cell, and/or Determining the path loss of the other base station and/or the terminal served by the other base station to the current base station, and determining whether the other base station and the current base station exist according to the signal strength and/or the path loss Determining, and determining whether there is interference between the other base station and the current base station, determining an interference base station group of the current base station.
- an interfering base station group can be established, and then the established interfering base station group is provided to reduce inter-base station interference.
- An effective organizational model by acquiring the signal strengths of other base stations and related path losses in the current base station cell, an interfering base station group can be established, and then the established interfering base station group is provided to reduce inter-base station interference.
- the current base station measures a signal strength of the other base station by using a receiver module (measurement module) in the current base station, and/or by setting in the current base station cell a sensor module to measure a signal strength of the other base station, and/or a signal strength of the other base station from a terminal served by the current base station, wherein a signal strength of the other base station passes through a terminal served by the current base station measuring.
- a receiver module measurement module
- the signal can be detected by the terminal itself, which is relatively simple to implement, and can also be used for arranging the sensor at a suitable position in the cell for accurate measurement.
- the terminal can be fully utilized to detect signals using the terminal.
- the current base station receives the transmit power of the other base station from the other base station, and determines the other base station and/or the location according to the signal strength and the transmit power of the other base station. The path loss of the terminal served by the other base station to the current base station.
- the path loss may be obtained by calculating a ratio of a signal strength of the other base station to a transmit power of the other base station received by the current base station, and further, by using the path loss and no sound Comparing the minimum value of the path loss of the other base station and/or the terminal served by the other base station to the current base station during interference, the other base station and/or the terminal served by the other base station may be determined. Whether there is interference to the current base station.
- the current base station receives the current base station and/or from the other base stations. Or the path loss of the terminal served by the current base station to the other base station, determining the other base station and/or according to the path loss of the current base station and/or the terminal served by the current base station to the other base station. Or the path loss of the terminal served by the other base station to the current base station.
- the current base station since the interferences are mutual, the current base station and the other base stations are in an equal position when forming interference, that is, the degree of interference between any one of the two sides that theoretically generates interference to the other side is Is equal, therefore, for the path loss, the current base station may also determine by accepting the path loss of the other base station and/or the terminal served by the current base station to the other base station, thereby reducing the current The computing burden of the base station.
- the current base station further updates the interfering base station group of the current base station according to information about the interfering base station group of the other base station that is sent by the other base station.
- the current base station can make a more reasonable interference base station group for itself by combining the interference base station group information of other base stations.
- the current base station further sends information related to the interfering base station group of the current base station to other base stations in the interfering base station group of the current base station.
- a distributed control method is implemented, that is, the base station transmits its own base station group information, and updates its own interfering base station group according to the received base station group information.
- the current base station further sends information related to the interfering base station group of the current base station to a specific base station and/or a specific server or network unit, and from the specific base station and/or specific
- the network device receives new information related to the interfering base station group to update the interfering base station group of the current base station according to the new information related to the interfering base station group.
- the interfering base station group may be constructed by means of centralized control, that is, all relevant information of the interfering base station group with the current base station is concentrated by a specific base station and/or a specific network device, thereby reducing complexity.
- the information exchange process mitigates the information processing pressure of the current base station.
- the current base station receives information of the interference base station group of the other base station from the other base stations, according to information of the interference base station group of the other base station, and the interference base station of the current base station. And updating the interfering base station group of the current base station and the other base station, and transmitting information of the interference base station group of the other base station to the other base station.
- the interfering base station group may be constructed by using a distributed control manner, that is, each base station establishes an interfering base station group together for the center, and collects related information of the interfering base station group of other base stations, and Based on this, its own interfering base station group is updated. In this way, through the distributed information interaction, the interfering base station group can be constructed in a timely and effective manner.
- the current base station takes the union of the interfering base station group of the other base station and the interfering base station group of the current base station as the interfering base station group of the updated current base station.
- any one of the interfering base station groups causes interference to at least another base station in the interfering base station group, and therefore,
- the information about the interfering base station group of the other base station that is sent by the other base station, and further the base station that has an interference relationship with any one of the interfering base station groups of the current base station is included in the interfering base station group of the current base station, And continuously updating the interfering base station group of the current base station, until a new base station that can join the interfering base station group of the current base station is no longer found, that is, a stable interfering base station group of the current base station is constructed, Reducing interference between the base stations provides an efficient organizational model.
- the current base station communicates with the other base station through a wired and/or wireless link.
- the communication between the base stations can be performed by wired or wireless, and finally, the data interaction can be successfully completed.
- the current base station controls the current base station to send a signal according to a predetermined transmit power.
- the base station can send a test signal according to a certain power, and the other base station in the neighboring cell or the terminal in the cell can measure the signal, and finally complete the base station grouping based on the measurement result.
- the current base station detects whether there is a terminal in the current base station cell, and acquires the signal strength and/or the path loss only when the terminal exists in the current base station cell.
- the base station cell in which the terminal does not exist does not cause interference to other base stations
- the base station when the other base station establishes the interfering base station group, the base station may be absent, and therefore, the The base station constructs the interfering base station group, and thus does not have to perform the steps of acquiring other base station signal strengths and corresponding path losses in its cell.
- Figs. 6A through 6B are related diagrams showing specific implementation details of a base station grouping method according to an embodiment of the present invention.
- 3GPP 3rd Generation Partnership Project
- the channel allocation modes of the home base station and the macro base station are classified into three modes: a shared channel, a mixed channel, and a dedicated channel.
- the dedicated channel and the mixed channel mode enable the home base station to enjoy its own independent channel, and the interference is small in this case.
- the shared channel mode the spectrum resources are mutually occupied between the home base station and the macro base station, and between the home base station and the home base station, which may cause serious uplink and downlink interference.
- the home base station user group is divided into a closed user group, an open user group, and a mixed user group.
- the research condition as a shared channel, a closed user group (co-channel; CSG).
- the research scene location in the embodiment is as shown in FIG. 5A.
- the home base station 504 is densely distributed in a certain area according to architectural features.
- FIG. 5B when the user belongs to the HeNB cell, when the user Ki appears in a position where the HeNB cell and other HeNB cells (for example, J 2 ) are interleaved, the user Id will be The HeNB cell such as the HeNB cell J 2 generates uplink interference.
- the user K 2 belongs to the HeNB cell J 2 .
- the user K 2 When the user K 2 appears in the interlaced position of the HeNB cell J 2 and other HeNB cells (for example, ⁇ 2 ), the user K 2 generates uplink interference to the HeNB cell such as the HeNB cell. When the user K 2 is located in a position in the HeNB cell that is not interleaved with the HeNB cell J 2 , the user K 2 also generates uplink interference to the HeNB cell.
- the present invention proposes the definition of the uplink home base station subgroup and the uplink home base station group. If the deployment of the Femto cell is such that the isolation between cells is not so good, in the case of this CSG, the uplink and downlink interference will be relatively large, so this group and subgroup can also be used for downlink.
- the network side can further implement a more detailed radio resource management scheme (power control, time domain frequency domain resource allocation) to achieve interference management purposes.
- a more detailed radio resource management scheme power control, time domain frequency domain resource allocation
- Uplink home base station group :
- the q at this time is defined as the uplink family.
- Base station group Q When no HeNB cell can be absorbed by the uplink home base station subgroup q, the q at this time is defined as the uplink family. Base station group Q.
- the above definition is for uplink interference.
- the HeNB cell with no user presence does not have uplink interference to the surrounding HeNB cells, and temporarily considers it non-existent.
- the construction of the uplink home base station subgroup and the uplink home base station group is performed by the HeNB cell in which the user exists.
- Characteristics 2 The elements in the uplink home base station subgroup and the uplink home base station group (HeNB cell) are dynamic. Its elements change as the users in the HeNB cell appear or disappear.
- the uplink home base station subgroup and the uplink home base station group will be converted to each other due to user changes.
- the uplink home base station group obtained from the establishment of the uplink home base station subgroup from any HeNB cell is the same.
- the present invention designs the HeNB state parameter C Jt ⁇ PJJ 2 ... Jache ⁇ to describe the state of the HeNB.
- the meanings of the elements are as follows:
- ⁇ ' ⁇ ... ⁇ A list of uplink HeNB subgroups or group members constructed with user ⁇ as the center.
- FIG. 6A shows a detailed implementation flow diagram for constructing an uplink home base station definition 1 and definition 2 in a densely deployed home base station environment, in accordance with an embodiment of the present invention.
- a specific implementation process for constructing an uplink home base station definition 1 and definition 2 in a densely deployed home base station environment is as follows:
- Step 601 The user confirms the working status with the HeNB cell where the user is located, and the system marks that the user exists.
- the measurement may be performed on the user terminal side, or may be performed by a measurement module (also referred to as a receiver module) on the base station side, or may be measured using a sensor attached to the base station.
- the base station grouping may be based on the path loss of the other base station to the current base station cell, or may be based on the real-time interference strength (signal strength) of the other base station to the current base station cell.
- the base station may include not only the HeNB, but also a Pico cell, an RRH, and the like.
- the measurement strength of the signal transmitted by the neighboring cell base station is measured, and the measurement signal may include CRS (Common Reference Signal), CSI-RS (Channel Status Indication-Reference signal), DMRS (Demodulation Reference Symbol), PSS/SSS (Primary Synchronization Signal/ Secondary Synchronization Signal), one of PBCH (Physical Broadcast Channel), or the like.
- CRS Common Reference Signal
- CSI-RS Channel Status Indication-Reference signal
- DMRS Demodulation Reference Symbol
- PSS/SSS Primary Synchronization Signal/ Secondary Synchronization Signal
- PBCH Physical Broadcast Channel
- the measurement methods include:
- Option 1 The measurement is performed by the measurement module on the base station side;
- Option 2 The measurement is implemented by a user terminal that belongs to the current base station service, and is reported to the base station.
- the base station side may select to notify the user of the related information of the measured signal sent by the neighboring base station, and assist the user to perform measurement;
- Option 3 The measurement is performed by a sensor attached to the current base station, and the base station knows the measured value of the sensor in real time.
- L M be .
- This step occurs independently at the same time in all HeNBs that are in working state.
- the way to determine whether there is interference between base stations includes the following:
- Option 1 On the network side, the measured signal strength of the neighboring base station is used to determine whether one or some neighboring base stations cause strong interference to the current base station or user. If yes, join the base station subgroup, if not , Then do not join the base station subgroup;
- Option 2 On the network side, calculate the path loss by measuring the signal strength of the neighboring base station, determine whether the corresponding neighboring base station causes strong interference to the current base station cell, and if so, join the base station subgroup, if not, Then do not join the base station subgroup.
- Step 604 The sub-group information constructed by each HeNB is broadcasted in its sub-group or interactively transmitted through a wired/wireless link between the HeNBs.
- the HeNB needs to transmit interference information. Since the HeNB is installed according to the building distribution, the HeNB in the unified building can form a dense deployment. Therefore, the number of densely deployed HeNBs in a certain area is limited, and the amount of data brought by the broadcast is limited. And latency does not bring too much work to the system.
- Step 605 Each HeNB performs a "AND" operation on its own subgroup information and all received subgroup information. Consolidate cells that have a link or potential presence in the interference control into a subgroup.
- Step 606 Determine whether the sub-group information of each HeNB is stable. If the members of one of the uplink HeNB sub-groups in the uplink HeNB sub-group are still changing, go to step 604; if each HeNB sub-group member in the uplink HeNB sub-group Fixed, the uplink HeNB subgroup at this time is the uplink HeNB group.
- the base stations can exchange the sub-group information constructed by the X2, the S1 interface, or the air interface, and then update and maintain the base station sub-group information stored by the base station. List.
- a centralized control mode is provided, and the serving center base station, or the OAM side, or other upper layer network elements update and maintain the interference group of each base station by using the respective subgroup information reported by each base station.
- Information List is provided, and the serving center base station, or the OAM side, or other upper layer network elements update and maintain the interference group of each base station by using the respective subgroup information reported by each base station.
- Step 607 The uplink HeNB group is completed, and the algorithm ends.
- FIG. 6B it is assumed that 10 HeNBs are densely deployed within a certain range.
- the dashed line indicates the effective communication range boundary of each HeNB, and each HeNB has its own sensor for detecting the signal strength of the surrounding HeNB.
- the overlap of the effective communication range of the HeNB in FIG. 6B indicates the uplink interference or potential uplink interference existing between the HeNBs.
- a gray cell indicates that a user is communicating in the cell. The cell being communicated in this figure is: J 2 ,
- the HeNB of the user periodically transmits a power test signal to the surrounding, and the HeNB J k uses the sensor to collect the power test signal strength ⁇ ' ⁇ » of the other HeNB (J m ) at the edge of the cell.
- HeNB J k deploy a plurality of edge sensors, the plurality of sensors take a strongest signal as the P.
- Ji's sensor can detect the J 2 test signal P , ⁇ ;
- the sensor of h can detect the test signals p and p of J 3 ;
- the sensor of J 3 can detect the test signals ⁇ , p , p, p ' j " of J 2 , J 4 , J 5 , J 6 ,
- J 4 sensor can detect J 3 , J 6 test signal corpse ', corpse;
- the sensor of J 5 can detect the test signals of J 3 , J 6 , J 8 ⁇ , ⁇ ' P
- the J 6 sensor can detect the test signals of h. J 4 and J 5 , P , P
- the J 8 sensor can detect the test signals ⁇ 5 ⁇ , ⁇ ' ⁇ , P of J 5 , J 6 , j 9 ,
- the sensor can detect the J 8 , Jio test signal, ⁇ '. , ;
- JlO's sensor can detect the J 9 test signal"
- HeNB J k calculates the HeNB J m in the vicinity
- the path loss J J of the J k edge is the path loss generated by HeNB ⁇ to the communication edge of its cell. If » it indicates that the communication range of HeNB J m and HeNB J k overlaps, and the overlap of users in HeNB J m When communicating in the area, it will cause interference to HeNB J k .
- HeNBs that overlap with J 2 and the communication range are: Ji, h;
- the HeNBs that overlap with J 4 and the communication range are: J 3 , J 6 ;
- the HeNB that overlaps with J 5 and the communication range is: J 6 ;
- the HeNB that overlaps with J 10 and the communication range is: J 9 .
- each HeNB updates the uplink HeNB sub-group information according to its overlap with the surrounding HeNB communication range.
- the uplink HeNB subgroup J k are constructed directly uplink interference exists J k.
- Each HeNB broadcasts the subgroup information in its state parameters in its subgroup, and performs a "parallel" operation on the received subgroup information and its own subgroup information to obtain new subgroup information, and update the state parameter ⁇ . After the first broadcast,
- C j4 (l, , ⁇ J 2 ,J 3 ,J 4 ,J 5 ,J 6 ⁇ j .
- C j5 )1, , ⁇ J 4 ,J 5 ,J 6 ⁇ j .
- c j6 ⁇ ,P , ⁇ J 3 , J 4 , J 5 , J (
- Steps 604 and 605 need to be repeated.
- the subgroup information of J 3 does not change, so the subgroup of ⁇ still needs to repeat step 604, step 605.
- J 2 , J 3 , J 4 , J 5 , J 6 need to repeat steps 604 and 605.
- the obtained subgroup information is as follows:
- C A ⁇ , ⁇ , ⁇ 2 , ⁇ 4 , ⁇ 6 ⁇ .
- c j4 ⁇ i, , ⁇ J 1 ,J 2 ,J ,J 4 ,J 5 ,J 6 ⁇ >
- C J5 ⁇ ,P 5 , ⁇ JJ 2 ,J 3 ,J 4 ,J 5 ,J 6 ⁇
- C J6 ⁇ ,P 6 , ⁇ JJ 2 ,J 3 ,J 4 ,J 5 ,J 6 ⁇ ⁇
- the information is stable, and J 2 , J 3 , J 4 , J 5 , and J 6 construct an uplink HeNB group, and the algorithm ends.
- the present invention proposes a concept of an uplink HeNB group, and designs its construction process, and combines the characteristics of densely deployed HeNBs to propose a dynamic self-organizing structure for the interference of the uplink interference control method between HeNBs.
- the present invention also provides a machine readable program for causing a machine to perform the above-described base station grouping method in the base station when the program is executed in a base station.
- the present invention also provides a storage medium storing a machine readable program, wherein the machine readable program causes a machine to perform the above base station grouping method in a base station.
- the terminal grouping method includes: Step 702: Obtain signal strength of other terminals, and/or path loss of the other terminal to the current terminal; Step 704, determine, according to the signal strength and/or the path loss, the other Whether there is interference between the terminal and the current terminal; Step 706: Determine, according to a determination result of whether interference exists between the other terminal and the current terminal, determine an interference terminal group of the current terminal.
- the acquiring the path loss of the other terminal to the current terminal includes: receiving, by the other terminal, a transmit power of the other terminal; according to signal strength and transmission of the other terminal Power, determining a path loss of the other terminal to the current terminal.
- the method further includes: updating, according to the information about the interference terminal group of the other terminal sent by the other terminal, the interference terminal group of the current terminal.
- the method further includes: transmitting, to the other terminals in the interference terminal group of the current terminal, information related to the interference terminal group of the current terminal.
- the method further includes: a letter related to the interference terminal group of the current terminal
- the information is sent to the third party device; the new information related to the interfering terminal group is received from the third party device to update the interfering terminal group of the current terminal according to the new information related to the interfering terminal group.
- the method further includes: receiving, by the other terminal, information of the interference terminal group of the other terminal; according to the information of the interference terminal group of the other terminal, and the interference terminal group of the current terminal, Updating the current terminal and the interference terminal group of the other terminal; and transmitting information of the interference terminal group of the other terminal to the other terminal.
- the updating includes: taking a union of the interference terminal group of the other terminal and the interference terminal group of the current terminal as the interfering terminal group of the updated current terminal.
- the present invention also provides a machine readable program, wherein when the program is executed in a terminal, the program causes the terminal to perform a terminal grouping method as described in any one of the above technical solutions.
- the present invention also provides a storage medium storing a readable program of a machine, wherein the machine readable program causes the terminal to perform a terminal grouping method as described in any one of the above technical solutions.
- Figure 8 shows a block diagram of a terminal in accordance with an embodiment of the present invention.
- the terminal 800 includes: an obtaining module 802, configured to acquire signal strength of other terminals, and/or path loss of the other terminal to the terminal; an interference determining module 804, according to the signal strength and/or the path loss Determining whether there is interference between the other terminal and the terminal; the group determining module 806 determines the interference terminal group of the terminal according to the determination result of whether there is interference between the other terminal and the terminal.
- the method further includes: an information receiving module 808, receiving information of the interference terminal group of the other terminal from the other terminal; and an updating module 810, according to the information of the interference terminal group of the other terminal, and the The interfering terminal group of the terminal updates the interfering terminal group of the terminal and the other terminal.
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Abstract
本发明提供了基站分群方法,包括:在当前基站的小区内获取其他基站的信号强度,和/或其他基站和/或被其他基站服务的终端至当前基站的路径损耗;根据信号强度和/或路径损耗,判断其他基站与当前基站之间是否存在干扰;根据其他基站与当前基站之间是否存在干扰的判断结果,确定当前基站的干扰基站群。相应地,本发明还提供了基站、系统、终端分群方法、终端及机器可读程序和存储有机器可读程序的存储介质。通过本发明的技术方案,能够在密集部署基站的环境或终端至终端的点对点通信的场景下,基于有效的测量来判定哪些基站之间或终端之间存在干扰,划分出相互之间存在干扰的基站群或终端群,以便于为后续的基站间或终端间干扰控制方法提供参考。
Description
基站分群方法、 基站、 系统、 终端分群方法、 终端、 机器可读程序和存储介质 技术领域
本发明涉及无线通信领域, 具体而言, 涉及基站分群方法、 基站、 系统、 终端分 群方法、 终端、 机器可读程序和存储介质。 背景技术
在城市中, 无线通信的环境较为复杂, 由于环境因素引起的信号衰落使蜂窝网宏 基站 ( macro-NodeB, mNB )信号在室内的覆盖效果较差, 甚至出现通信信号死区的现 象, 减小了无线链路信道容量。
提高无线通信链路容量的最佳方法就是减小终端和基站之间的距离, 为实现这点 同时避免添加微基站 (Microcell ) 、 热点 (hot spots ) 或中继等昂贵设备, 家庭基站 的概念被提出。 家庭基站 (Home NodeB, HeNB , 也被称为 femtocell ) , 是继宏基站
(Macrocell), 微基站 (Microcell)、 微微基站 (Pieocell)之后出现的又一类代表全新移动通 信理念的基站。 它是一种小型、 低功率的基站设备, 面向住宅与企业环境, 解决宏基 站信号的覆盖不足的问题, 提高用户的数据传输速率。
HeNB的结构如图 1所示, 它与终端进行无线通信, 利用基于 ip的有线网络与运 营商的移动通信网相连。 HeNB 有适用于 CDMA、 GSM、 UMTS 等各种标准和支持
2G、 2.5G、 3G 的产品, 与运营商的其它移动基站同制式、 同频段, 因此手机等移动 终端可以通用。
家境基站在带来高质量的数据传输的同时也带来了大量的干扰。 在 co-channel模 式下, 家庭基站的频谱资源分配为与宏基站使用相同的传输频段, 所以在宏基站与家 庭基站 (mNB to HeNB ) 、 家庭基站与家庭基站 (HeNB to HeNB ) 间存在干扰。 mNB to HeNB干扰主要指宏基站用户 ( mUE ) 对家庭基站 (HeNB ) 的上行干扰、 家 庭基站用户 (HUE )对宏基站 (mNB ) 的上行干 4尤和下行干 4尤。 HeNB to HeNB的干 扰指家庭基站用户 (HUE )对其他 HeNB 的上行干扰和 HeNB对其他小区 HUE的下 行干扰。
处理家庭基站干扰问题的方法分为功率控制和资源管理两种方法。 当前 3GPP 协 议 TS25.967 R10版本对功率控制方法更加关注。 功率控制方法通过调整用户或基站的 发射功率来保护用户的上下行链路信干噪比, 以达到提高呑吐量的目的。 资源管理方 法通过对无线信道中利用时分复用、 频分复用、 码分复用等技术避免无线信号资源重 叠的现象。 目前在 HeNB中, 干扰控制方法主要存在以下不足:
1 ) 忽视 HeNB 到 HeNB 的干扰问题。 当前各个组织对家庭基站干扰问题的研究 十分有限, 而这些研究将关注点基本完全集中在宏基站用户对家庭基站用户上行干扰 和家庭基站用户对宏基站用户下行干扰。 虽然大量研究人员将干扰场景定位为一个宏 基站覆盖下存在多个家庭基站, 但提出优化方案时为简化干扰问题, 将研究场景设定 或变相设定为一个宏基站对一个家庭基站。 这种研究方法欠缺对干扰来源的完整考虑。
2 ) HeNB之间缺乏关联性研究。 已有方法对 HeNB特性的研究在 HeNB之间相对 独立, 没有考虑密集部署 HeNB环境下干扰控制方法在 HeNB之间的关联性。 缺少测 量和自组织的过程, 使干扰控制方法缺乏快速自适应的能力。 每个 HeNB独立的干扰 控制方法甚至可能使一些已有方法陷入死循环。
因此, 需要一种针对基站与基站之间干扰问题的技术方案, 能够在密集部署基站 的环境下, 准确判断哪些基站之间存在干扰, 划分出相互之间存在干扰的基站群, 以 便于为后续的基站间干扰控制方法提供参考。 发明内容
本发明所要解决的技术问题在于, 提供一种针对基站与基站之间干扰问题的技术 方案, 能够在密集部署基站的环境下, 准确判断哪些基站之间存在干扰, 划分出相互 之间存在干扰的基站群, 以便于为后续的基站间干扰控制方法提供参考。
有鉴于此, 本发明提供了一种基站分群方法, 包括: 在当前基站的小区内获取其 他基站的信号强度, 和 /或所述其他基站和 /或被所述其他基站服务的终端至所述当前 基站的路径损耗; 根据所述信号强度和 /或所述路径损耗, 判断所述其他基站与当前基 站之间是否存在干扰; 根据所述其他基站与所述当前基站之间是否存在干扰的判断结 果, 确定所述当前基站的干扰基站群。 在本技术方案中, 通过在当前基站小区内获取 其他基站的信号强度, 和相关的路径损耗, 可以建立起干扰基站群, 进而通过建立起 的干扰基站群, 为减小基站间的干扰提供了有效的组织模型。
根据本发明的另一方面, 还提供了一种基站, 包括: 信号强度 /路径损耗获取模块, 在当前基站的小区内获取其他基站的信号强度, 和 /或所述其他基站和 /或被所述其他 基站服务的终端至所述当前基站的路径损耗; 干扰判断模块, 根据所述信号强度和 /或 所述路径损耗, 判断所述其他基站与当前基站之间是否存在干扰; 群确定模块, 根据 所述其他基站与所述当前基站之间是否存在干扰的判断结果, 确定所述当前基站的干 扰基站群。 在本技术方案中, 通过在当前基站小区内获取其他基站的信号强度, 和相 关的路径损耗, 可以建立起干扰基站群, 进而通过建立起的干扰基站群, 为减小基站 间的干扰提供了有效的组织模型。
本发明还提供了一种系统, 包括基站和终端, 其中, 所述基站中的当前基站在所 述当前基站小区内获取其他基站的信号强度, 和 /或所述其他基站和 /或被所述其他基 站服务的终端至所述当前基站的路径损耗, 并根据所述信号强度和 /或所述路径损耗, 判断所述其他基站与当前基站之间是否存在干扰, 以及所述其他基站与所述当前基站 之间是否存在干扰的判断结果, 确定所述当前基站的干扰基站群。 在本技术方案中, 通过在当前基站小区内获取其他基站的信号强度, 和相关的路径损耗, 可以建立起干 扰基站群, 进而通过建立起的干扰基站群, 为减小基站间的干扰提供了有效的组织模 型。
本发明还提供了一种机器可读程序, 当在基站中执行所述程序时, 所述程序使得 机器在所述基站中执行上述基站分群方法。
本发明还提供了一种存储有机器可读程序的存储介质, 其中所述机器可读程序使 得机器在基站中执行上述基站分群方法。
本发明还提供了一种终端分群方法, 包括: 获取其他终端的信号强度, 和 /或所 述其他终端至当前终端的路径损耗; 根据所述信号强度和 /或所述路径损耗, 判断所述 其他终端与所述当前终端之间是否存在干扰; 根据所述其他终端与所述当前终端之间 是否存在干扰的判断结果, 确定所述当前终端的干扰终端群。 在本技术方案中, 通过 信号强度和 /或路径损耗来判断干扰是否存在, 根据判断结果确定干扰终端群, 为减小 终端间的干扰提供了有效的组织模型。
本发明还提供了一种机器可读程序, 其中当在终端中执行所述程序时, 所述程序 使所述终端执行如上述任一技术方案中所述的终端分群方法。
本发明还提供了一种存储有机器可读程序的存储介质, 其中所述机器可读程序使
所述终端执行如上述任一技术方案中所述的终端分群方法。
本发明还提供了一种终端, 包括: 获取模块, 用于获取其他终端的信号强度, 和 / 或所述其他终端至所述终端的路径损耗; 干扰判断模块, 根据所述信号强度和 /或所述 路径损耗, 判断所述其他终端与所述终端之间是否存在干扰; 群确定模块, 根据所述 其他终端与所述终端之间是否存在干扰的判断结果, 确定所述终端的干扰终端群。
根据本发明的终端, 能够确定该终端的干扰终端群, 为减小终端间的干扰提供了 有效的组织模型。 附图说明
图 1示出了相关技术中的 HeNB的结构示意图;
图 2示出了根据本发明的实施例的基站分群方法的流程图;
图 3示出了根据本发明的实施例的基站的框图;
图 4示出了根据本发明的实施例的系统的框图;
图 5A示出了根据本发明的实施例的基站分群方法的研究场景定位示意图; 图 5B示出了根据本发明的实施例的基站分群方法的群模型的示意图;
图 6A 示出了根据本发明的实施例的基站分群方法在密集部署家庭基站环境下构 建上行家庭基站定义 1和定义 2的具体实施流程图;
图 6B示出了根据本发明的实施例的基站分群方法的 HeNB密集部署的示意图; 图 7示出了根据本发明的实施例的终端分群方法的流程图; 以及
图 8示出了根据本发明的实施例的终端的框图。 具体实施方式
为了能够更清楚地理解本发明的上述目的、 特征和优点, 下面结合附图和具体实 施方式对本发明进行进一步的详细描述。 需要说明的是, 在不冲突的情况下, 本申请 的实施例及实施例中的特征可以相互组合。
在本发明的实施例中, 针对家庭基站新技术对现有通信网络带来的改变, 提供一 种密集部署家庭基站 (HeNB ) 之间上下行干扰控制的自组织模型。 使针对 HeNB to HeNB 上下行干扰问题的功率控制、 资源分配等干扰解决方法具备较强的自组织性和 独立性, 降低网络侧的复杂度。
为了达到上述目的, 本发明为了克服低功率密集部署基站 (例如家庭基站) 已有 研究的不足, 首先分析密集部署家庭基站场景, 提出家庭基站子群和家庭基站群的概 念, 挖掘家庭基站之间干扰存在的关联性; 其次设计家庭基站群的组建方法以及组建 条件, 体现出家庭基站群所具备的动态特性和自组织性。
以下通过实施例, 来详细描述本发明提供的技术方案的原理。 需要注意的是, 本 方案虽然针对家庭基站进行描述, 但实际上适用于所有密集式部署的低功率基站环境, 另外, 虽然重点强调了针对上行干扰问题, 但也适用于针对下行干扰问题的功率控制 方案。
在下面的描述中阐述了很多具体细节以便于充分理解本发明, 但是, 本发明还可 以釆用其他不同于在此描述的其他方式来实施, 因此, 本发明的保护范围并不受下面 公开的具体实施例的限制。
图 2示出了根据本发明的实施例的基站分群方法的流程图。
如图 2 所示, 根据本发明的实施例的基站分群方法, 包括: 步骤 202 , 在当前基 站的小区内获取其他基站的信号强度, 和 /或所述其他基站和 /或被所述其他基站服务 的终端至所述当前基站的路径损耗; 步骤 204 , 根据所述信号强度和 /或所述路径损耗, 判断所述其他基站与当前基站之间是否存在干扰; 步骤 206 , 根据所述其他基站与所 述当前基站之间是否存在干扰的判断结果, 确定所述当前基站的干扰基站群。
在本技术方案中, 通过在当前基站小区内获取其他基站的信号强度, 和相关的路 径损耗, 可以建立起干扰基站群, 进而通过建立起的干扰基站群, 为减小基站间的干 扰提供了有效的组织模型。
在上述技术方案中, 优选地, 所述在当前基站小区内获取其他基站的信号强度包 括: 通过所述当前基站中的接收机模块 (又称作测量模块) 来测量所述其他基站的信 号强度; 和 /或通过所述当前基站小区内设置的传感器模块来测量所述其他基站的信号 强度; 和 /或从被所述当前基站服务的终端接收所述其他基站的信号强度, 其中, 所述 其他基站的信号强度通过被所述当前基站服务的终端测量。
在本技术方案中, 对于所述信号强度的测量方法, 可以釆取多种方式, 可以利用 终端本身检测信号, 实现起来比较简便, 也可以为了测量准确, 在小区内合适的位置 布置传感器, 也可以充分利用终端的作用, 利用终端来检测信号。
在上述技术方案中, 优选地, 所述获取所述其他基站和 /或被所述其他基站服务的
终端至所述当前基站的路径损耗包括: 从所述其他基站接收所述其他基站的发射功率; 根据所述其他基站的信号强度和发射功率, 确定所述其他基站和 /或被所述其他基站服 务的终端至所述当前基站的路径损耗。
在本技术方案中, 所述路径损耗可以通过计算所述其他基站的信号强度与所述当 前基站接收到的所述其他基站的发射功率的比值来得到, 进而通过以所述路径损耗与 不发声干扰时所述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损 耗的最小值进行比较, 就可以判断出所述其他基站和 /或被所述其他基站服务的终端对 所述当前基站是否存在干扰。
在上述技术方案中, 优选地, 所述获取所述其他基站和 /或被所述其他基站服务的 终端至所述当前基站的路径损耗包括: 从所述其他基站接收所述当前基站和 /或被所述 当前基站服务的终端至所述其他基站的路径损耗; 根据所述当前基站和 /或被所述当前 基站服务的终端至所述其他基站的路径损耗, 确定所述其他基站和 /或被所述其他基站 服务的终端至所述当前基站的路径损耗。
在本技术方案中, 由于干扰是相互的, 因此所述当前基站与所述其他基站在形成 干扰时处于相对的位置, 而且又因为低功率基站的部署范围较小, 即从概率上生成干 扰的双方的其中任何一方对另一方的干扰程度都是处于相当的水平, 因此, 对于所述 路径损耗, 所述当前基站也可以通过接受所述其他基站和 /被所述当前基站服务的终端 至所述其他基站的路径损耗来确定, 进而减少所述当前基站的运算负担。
在上述技术方案中, 优选地, 还包括: 根据所述其他基站发送的与所述其他基站 的干扰基站群相关的信息, 更新所述当前基站的干扰基站群。
在本技术方案中, 当前基站结合其他基站的干扰基站群信息, 可以为自己制定更 合理的干扰基站群。
在上述技术方案中, 优选地, 还包括: 将与所述当前基站的干扰基站群相关的信 息发送至所述当前基站的干扰基站群中的其他基站。
在本技术方案中, 结合前述方案, 实现了一种分布式的控制方法, 即基站之间传 输自己的基站群信息, 并根据接收到的基站群信息, 对自己的干扰基站群进行更新。
在上述技术方案中, 优选地, 还包括: 将与所述当前基站的干扰基站群相关的信 息发送至特定基站和 /或特定服务器或网络单元; 从所述特定基站和 /或特定网络设备 接收新的与干扰基站群相关的信息, 以根据所述新的与干扰基站群相关的信息来更新
所述当前基站的干扰基站群。
在本技术方案中, 可以釆取集中控制的方式来构建所述干扰基站群, 即通过一个 特定基站和 /或特定网络设备将所有与当前基站的干扰基站群的相关信息集中, 进而减 少复杂的信息交互过程, 减轻所述当前基站的信息处理压力。
在上述技术方案中, 优选地, 还包括: 从所述其他基站接收所述其他基站的干扰 基站群的信息; 根据所述其他基站的干扰基站群的信息, 和所述当前基站的干扰基站 群, 更新所述当前基站和所述其他基站的干扰基站群; 将所述其他基站的干扰基站群 的信息, 发送至所述其他基站。
在本技术方案中, 可以釆用分布式控制的方式来构建所述干扰基站群, 即每一个 基站都一起为中心建立起干扰基站群, 并收集其他基站的干扰基站群的相关信息, 并 据此更新其自身的干扰基站群。 这样, 通过分布式的信息交互, 能够更加及时有效地 构建出所述干扰基站群。
在上述技术方案中, 优选地, 所述更新包括: 取所述其他基站的干扰基站群与所 述当前基站的干扰基站群的并集, 作为经更新的当前基站的干扰基站群。
在本技术方案中, 由于基站之间的干扰与基站之间的密集程度有关, 所述干扰基 站群其中的任一个基站都至少对该干扰基站群中的另一个基站造成干扰, 因此, 通过 综合所述其他基站发送的与所述其他基站的干扰基站群相关的信息, 进而将与当前基 站的干扰基站群中的任一个基站有干扰关系的基站纳入到所述当前基站的干扰基站群 中, 进而不断更新所述当前基站的干扰基站群, 直到不再发现新的能够加入到所述当 前基站的干扰基站群中的基站为止, 即构建出了稳定的所述当前基站的干扰基站群, 为减少所述基站之间的干扰提供了有效的组织模型。
在上述技术方案中, 优选地, 所述当前基站通过有线和 /或无线链路与所述其他基 站进行通信。
在本技术方案中, 基站之间的通信利用有线或无线的方式均可, 最终是保证可以 顺利完成数据交互。
在上述技术方案中, 优选地, 还包括: 由所述当前基站按预定发射功率发出信号。 在本技术方案中, 从实用角度考虑, 基站可以按一定功率发出测试信号, 则邻区 其他基站或其小区内终端可以对该信号进行测量, 并基于测量结果最终完成基站分群。
在上述技术方案中, 优选地, 还包括: 检测所述当前基站小区内是否存在终端,
并仅在所述当前基站小区内存在终端时, 执行所述获取当前基站小区内所述其他基站 的信号强度, 和 /或所述其他基站至所述当前基站的路径损耗的步骤。
在本技术方案中, 由于不存在终端的基站小区并不会对其他的基站产生干扰, 在 其他基站建立所述干扰基站群时, 可以将该基站是为不存在, 因此, 就不需要对该基 站构建干扰基站群, 也就不必执行在其小区内获取其他基站信号强度和相应的路径损 耗的步骤。
图 3示出了根据本发明的实施例的基站的框图。
如图 3所示, 根据本发明的实施例的基站 300 , 包括: 信号强度 /路径损耗获取模 块 302 , 在当前基站的小区内获取其他基站的信号强度, 和 /或所述其他基站和 /或被所 述其他基站服务的终端至所述当前基站的路径损耗; 干扰判断模块 304 , 根据所述信 号强度和 /或所述路径损耗, 判断所述其他基站与当前基站之间是否存在干扰; 群确定 模块 306 , 根据所述其他基站与所述当前基站之间是否存在干扰的判断结果, 确定所 述当前基站的干扰基站群。
在本技术方案中, 通过在当前基站小区内获取其他基站的信号强度, 和相关的路 径损耗, 可以建立起干扰基站群, 进而通过建立起的干扰基站群为减小基站间的干扰 提供了有效的组织模型。
在上述技术方案中, 优选地, 所述信号强度 /路径损耗获取模块 302通过在所述当 前基站中的接收机模块 (又称作测量模块) 来测量所述其他基站的信号强度; 和 /或所 述信号强度 /路径损耗获取模块 302通过在所述当前基站小区内设置的传感器模块来测 量所述其他基站的信号强度; 和 /或所述信号强度 /路径损耗获取模块 302 从被所述当 前基站服务的终端接收所述其他基站的信号强度, 其中所述其他基站的信号强度通过 被所述当前基站服务的终端测量。
在本技术方案中, 对于所述信号强度的测量方法, 可以釆取多种方式, 可以利用 终端本身检测信号, 实现起来比较简便, 也可以为了测量准确, 在小区内合适的位置 布置传感器, 也可以充分利用终端的作用, 利用终端来检测信号。
在上述技术方案中, 优选地, 所述信号强度 /路径损耗获取模块 302从所述其他基 站接收所述其他基站的发射功率, 并根据所述其他基站的信号强度和发射功率, 确定 所述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗。
在本技术方案中, 所述路径损耗可以通过计算所述其他基站的信号强度与所述当
前基站接收到的所述其他基站的发射功率的比值来得到, 进而通过以所述路径损耗与 不发声干扰时所述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损 耗的最小值进行比较, 就可以判断出所述其他基站和 /或被所述其他基站服务的终端对 所述当前基站是否存在干扰。
在上述技术方案中, 优选地, 所述信号强度 /路径损耗获取模块 302从所述其他基 站接收所述当前基站和 /或被所述当前基站服务的终端至所述其他基站的路径损耗, 根 据所述当前基站和 /或被所述当前基站服务的终端至所述其他基站的路径损耗, 确定所 述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗。
在本技术方案中, 由于干扰是相互的, 因此所述当前基站与所述其他基站在形成 干扰时处于对等的位置, 即理论上生成干扰的双方的其中任何一方对另一方的干扰程 度都是相等的, 因此, 对于所述路径损耗, 所述当前基站也可以通过接受所述其他基 站和 /被所述当前基站服务的终端至所述其他基站的路径损耗来确定, 进而减少所述当 前基站的运算负担。
在上述技术方案中, 优选地, 所述群确定模块 306还根据所述其他基站发送的与 所述其他基站的干扰基站群相关的信息, 更新所述当前基站的干扰基站群。
在本技术方案中, 当前基站结合其他基站的干扰基站群信息, 可以为自己制定更 合理的干扰基站群。
在上述技术方案中, 优选地, 所述群确定模块 306还将与所述当前基站的干扰基 站群相关的信息发送至所述当前基站的干扰基站群中的其他基站。
在本技术方案中, 结合前述方案, 实现了一种分布式的控制方法, 即基站之间传 输自己的基站群信息, 并根据接收到的基站群信息, 对自己的干扰基站群进行更新。
在上述技术方案中, 优选地, 所述群确定模块 306还将与所述当前基站的干扰基 站群相关的信息发送至特定基站和 /或特定服务器或网络单元, 并从所述特定基站和 / 或特定网络设备接收新的与干扰基站群相关的信息, 以根据所述新的与干扰基站群相 关的信息来更新所述当前基站的干扰基站群。
在本技术方案中, 可以釆取集中控制的方式来构建所述干扰基站群, 即通过一个 特定基站和 /或特定网络设备将所有与当前基站的干扰基站群的相关信息集中, 进而减 少复杂的信息交互过程, 减轻所述当前基站的信息处理压力。
在上述技术方案中, 优选地, 所述群确定模块 306从所述其他基站接收所述其他
基站的干扰基站群的信息, 根据所述其他基站的干扰基站群的信息, 和所述当前基站 的干扰基站群, 更新所述当前基站和所述其他基站的干扰基站群, 并将所述其他基站 的干扰基站群的信息, 发送至所述其他基站。
在本技术方案中, 可以釆用分布式控制的方式来构建所述干扰基站群, 即每一个 基站都一起为中心建立起干扰基站群, 并收集其他基站的干扰基站群的相关信息, 并 据此更新其自身的干扰基站群。 这样, 通过分布式的信息交互, 能够更加及时有效地 构建出所述干扰基站群。
在上述技术方案中, 优选地, 所述群确定模块 306取所述其他基站的干扰基站群 与所述当前基站的干扰基站群的并集, 作为经更新的当前基站的干扰基站群。
在本技术方案中, 由于基站之间的干扰与基站之间的密集程度有关, 所述干扰基 站群其中的任一个基站都至少对该干扰基站群中的另一个基站造成干扰, 因此, 通过 综合所述其他基站发送的与所述其他基站的干扰基站群相关的信息, 进而将与当前基 站的干扰基站群中的任一个基站有干扰关系的基站纳入到所述当前基站的干扰基站群 中, 进而不断更新所述当前基站的干扰基站群, 直到不再发现新的能够加入到所述当 前基站的干扰基站群中的基站为止, 即构建出了稳定的所述当前基站的干扰基站群, 为减少所述基站之间的干扰提供了有效的组织模型。
在上述技术方案中, 优选地, 所述当前基站通过有线和 /或无线链路与所述其他基 站进行通信。
在本技术方案中, 基站之间的通信利用有线或无线的方式均可, 最终是保证可以 顺利完成数据交互。
在上述技术方案中, 优选地, 还包括: 发射功率控制模块 308 , 控制所述当前基 站按预定发射功率发出信号。
在本技术方案中, 从实用角度考虑, 基站可以按一定功率发出测试信号, 则邻区 其他基站或其小区内终端可以对该信号进行测量, 并基于测量结果最终完成基站分群。
在上述技术方案中, 优选地, 还包括: 检测模块 310 , 检测所述当前基站小区内 是否存在终端, 并仅在所述当前基站小区内存在终端时, 启动所述信号强度 /路径损耗 获取模块 302。
在本技术方案中, 由于不存在终端的基站小区并不会对其他的基站产生干扰, 在 其他基站建立所述干扰基站群时, 可以将该基站是为不存在, 因此, 就不需要对该基
站构建干扰基站群, 也就不必执行在其小区内获取其他基站信号强度和相应的路径损 耗的步骤。
图 4示出了根据本发明的实施例的系统的框图。
如图 4所示, 根据本发明的实施例的系统 400 , 包括基站 402和终端 404 , 其中, 所述基站 402中的当前基站在所述当前基站小区内获取其他基站的信号强度, 和 /或所 述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗, 并根据所述 信号强度和 /或所述路径损耗, 判断所述其他基站与当前基站之间是否存在干扰, 以及 所述其他基站与所述当前基站之间是否存在干扰的判断结果, 确定所述当前基站的干 扰基站群。
在本技术方案中, 通过在当前基站小区内获取其他基站的信号强度, 和相关的路 径损耗, 可以建立起干扰基站群, 进而通过建立起的干扰基站群, 为减小基站间的干 扰提供了有效的组织模型。
在上述技术方案中, 优选地, 所述当前基站通过在所述当前基站中的接收机模块 (测量模块) 来测量所述其他基站的信号强度, 和 /或通过在所述当前基站小区内设置 传感器模块来测量所述其他基站的信号强度, 和 /或从被所述当前基站服务的终端接收 所述其他基站的信号强度, 其中所述其他基站的信号强度通过被所述当前基站服务的 终端测量。
在本技术方案中, 对于所述信号强度的测量方法, 可以釆取多种方式, 可以利用 终端本身检测信号, 实现起来比较简便, 也可以为了测量准确, 在小区内合适的位置 布置传感器, 也可以充分利用终端的作用, 利用终端来检测信号。
在上述技术方案中, 优选地, 所述当前基站从所述其他基站接收所述其他基站的 发射功率, 并根据所述其他基站的信号强度和发射功率, 确定所述其他基站和 /或被所 述其他基站服务的终端至所述当前基站的路径损耗。
在本技术方案中, 所述路径损耗可以通过计算所述其他基站的信号强度与所述当 前基站接收到的所述其他基站的发射功率的比值来得到, 进而通过以所述路径损耗与 不发声干扰时所述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损 耗的最小值进行比较, 就可以判断出所述其他基站和 /或被所述其他基站服务的终端对 所述当前基站是否存在干扰。
在上述技术方案中, 优选地, 所述当前基站从所述其他基站接收所述当前基站和 /
或被所述当前基站服务的终端至所述其他基站的路径损耗, 根据所述当前基站和 /或被 所述当前基站服务的终端至所述其他基站的路径损耗, 确定所述其他基站和 /或被所述 其他基站服务的终端至所述当前基站的路径损耗。
在本技术方案中, 由于干扰是相互的, 因此所述当前基站与所述其他基站在形成 干扰时处于对等的位置, 即理论上生成干扰的双方的其中任何一方对另一方的干扰程 度都是相等的, 因此, 对于所述路径损耗, 所述当前基站也可以通过接受所述其他基 站和 /被所述当前基站服务的终端至所述其他基站的路径损耗来确定, 进而减少所述当 前基站的运算负担。
在上述技术方案中, 优选地, 所述当前基站还根据所述其他基站发送的与所述其 他基站的干扰基站群相关的信息, 更新所述当前基站的干扰基站群。
在本技术方案中, 当前基站结合其他基站的干扰基站群信息, 可以为自己制定更 合理的干扰基站群。
在上述技术方案中, 优选地, 所述当前基站还将与所述当前基站的干扰基站群相 关的信息发送至所述当前基站的干扰基站群中的其他基站。
在本技术方案中, 结合前述方案, 实现了一种分布式的控制方法, 即基站之间传 输自己的基站群信息, 并根据接收到的基站群信息, 对自己的干扰基站群进行更新。
在上述技术方案中, 优选地, 所述当前基站还将与所述当前基站的干扰基站群相 关的信息发送至特定基站和 /或特定服务器或网络单元, 并从所述特定基站和 /或特定 网络设备接收新的与干扰基站群相关的信息, 以根据所述新的与干扰基站群相关的信 息来更新所述当前基站的干扰基站群。
在本技术方案中, 可以釆取集中控制的方式来构建所述干扰基站群, 即通过一个 特定基站和 /或特定网络设备将所有与当前基站的干扰基站群的相关信息集中, 进而减 少复杂的信息交互过程, 减轻所述当前基站的信息处理压力。
在上述技术方案中, 优选地, 所述当前基站从所述其他基站接收所述其他基站的 干扰基站群的信息, 根据所述其他基站的干扰基站群的信息, 和所述当前基站的干扰 基站群, 更新所述当前基站和所述其他基站的干扰基站群, 并将所述其他基站的干扰 基站群的信息, 发送至所述其他基站。
在本技术方案中, 可以釆用分布式控制的方式来构建所述干扰基站群, 即每一个 基站都一起为中心建立起干扰基站群, 并收集其他基站的干扰基站群的相关信息, 并
据此更新其自身的干扰基站群。 这样, 通过分布式的信息交互, 能够更加及时有效地 构建出所述干扰基站群。
在上述技术方案中, 优选地, 所述当前基站取所述其他基站的干扰基站群与所述 当前基站的干扰基站群的并集, 作为经更新的当前基站的干扰基站群。
在本技术方案中, 由于基站之间的干扰与基站之间的密集程度有关, 所述干扰基 站群其中的任一个基站都至少对该干扰基站群中的另一个基站造成干扰, 因此, 通过 综合所述其他基站发送的与所述其他基站的干扰基站群相关的信息, 进而将与当前基 站的干扰基站群中的任一个基站有干扰关系的基站纳入到所述当前基站的干扰基站群 中, 进而不断更新所述当前基站的干扰基站群, 直到不再发现新的能够加入到所述当 前基站的干扰基站群中的基站为止, 即构建出了稳定的所述当前基站的干扰基站群, 为减少所述基站之间的干扰提供了有效的组织模型。
在上述技术方案中, 优选地, 所述当前基站通过有线和 /或无线链路与所述其他基 站进行通信。
在本技术方案中, 基站之间的通信利用有线或无线的方式均可, 最终是保证可以 顺利完成数据交互。
在上述技术方案中, 优选地, 所述当前基站控制所述当前基站按预定发射功率发 出信号。
在本技术方案中, 从实用角度考虑, 基站可以按一定功率发出测试信号, 则邻区 其他基站或其小区内终端可以对该信号进行测量, 并基于测量结果最终完成基站分群。
在上述技术方案中, 优选地, 所述当前基站检测所述当前基站小区内是否存在终 端, 并仅在所述当前基站小区内存在终端时, 获取所述信号强度和 /或所述路径损耗。
在本技术方案中, 由于不存在终端的基站小区并不会对其他的基站产生干扰, 在 其他基站建立所述干扰基站群时, 可以将该基站是为不存在, 因此, 就不需要对该基 站构建干扰基站群, 也就不必执行在其小区内获取其他基站信号强度和相应的路径损 耗的步骤。
图 5A至图 5B , 以及图 6A至图 6B示出了根据本发明的实施例的基站分群方法 的具体实施细节的相关示意图。
下面结合图 5A至图 5B, 以及图 6A至图 6B进一步详细说明。
3GPP ( 3rd Generation Partnership Project ) 是在标准 TR25.967中对家庭基站的信
道分配方式、 家庭基站用户群分类。 家庭基站与宏基站的信道分配方式分为共用信道、 混合信道和专用信道三种模式。 其中专用信道和混合信道方式使家庭基站享有自己独 立的信道, 这种情况下干扰较小。 而共用信道模式下家庭基站和宏基站间、 家庭基站 和家庭基站间相互抢占频谱资源, 会造成严重的上下行干扰。 家庭基站用户群分为封 闭用户群、 开放用户群和混合用户群。 由于封闭用户群在信号质量改变时无法切换到 周围信号较强的家庭基站, 所以这种用户群的上下行干扰很大, 尤其是在家庭基站部 署比较密集的时候, HeNB 之间的干扰问题不容忽视。 综上分析, 在本发明的实施例 中, 我们将研究条件定位为共用信道, 封闭用户群 ( co-channel; CSG ) 。
实施例中的研究场景定位如图 5A所示。 在一个宏基站 502 范围内存在大量家庭 基站 504。 家庭基站 504依据建筑特点在一定区域密集分布。 家庭基站 504的有效通 信范围之间存在相互交错现象, 如图 5B 所示, 用户 属于 HeNB 小区 当用户 Ki出现在 HeNB小区 和其他 HeNB小区 (例如 J2 ) 交错的位置时, 用户 Id就会对 HeNB小区 J2等 HeNB小区产生上行干扰。 同样, 用户 K2属于 HeNB小区 J2, 当用 户 K2出现在 HeNB小区 J2和其他 HeNB小区 (例如 ^ ) 交错的位置时, 用户 K2就会 对 HeNB 小区 等 HeNB 小区产生上行干扰。 当用户 K2位于 HeNB 小区 中不与 HeNB小区 J2交错的位置时, 用户 K2也会对 HeNB小区 产生上行干扰。
根据 HeNB 小区之间干扰存在关联性这一特点, 本发明提出上行家庭基站子群和 上行家庭基站群的定义。 如果 Femto cell的部署使得各个 cell之间的隔离度确实不是 那么好, 对于这种 CSG 的情况来说, 上下行的干扰都会比较大, 所以这个群和子群 也可以通用于下行。
利用这种群的模型, 网络侧可以进而实施更加细节的无线资源管理方案 (功率控 制, 时域频域资源的分配) 达到干扰管理的目的。
定义 1. 上行家庭基站子群:
当两个 HeNB 小区 ^ 、 J2之间存在上行干扰时, 这两个 HeNB 小区被定义为一 个上行家庭基站子群 q={ Ji 、 J2} ; 当 HeNB小区 J3g qJL J3与 q中 、 J2中至少一 个小区存在上行干扰时, q吸收 J3形成新的上行家庭基站子群 q={ Ji. h. Js 以此类 定义 2. 上行家庭基站群:
当没有 HeNB小区能够被上行家庭基站子群 q吸收时, 这时的 q定义为上行家庭
基站群 Q。
上述两个定义具有以下特性:
特性 1. 上述定义针对上行干扰, 没有用户存在的 HeNB 小区对周围 HeNB 小区 不存在上行干扰, 将其暂时视为不存在。 上行家庭基站子群和上行家庭基站群的构建 由存在用户的 HeNB小区进行。
特性 2. 上行家庭基站子群和上行家庭基站群内的元素 (HeNB 小区) 是动态的。 其元素随着 HeNB小区内用户的出现或消失而改变。
特性 3. 上行家庭基站子群和上行家庭基站群之间会由于存在用户的改变而相互 转化。
特性 4. 对于确定的一定数量密集部署家庭基站, 从任意一个 HeNB 小区开始组 建上行家庭基站子群最后得到的上行家庭基站群是一样的。
为 进行上行 家庭基站群 的 组建 , 本发 明 设计 HeNB 状 态 参数 CJt ^ P J J2...J„}}来描述 HeNB 的状态。 其中元素的意义分别如下:
S: HeNB工作状态。 HeNB 内有终端通信时, 标记为 1 ; HeNB无终端通信时, S标记为 0。
P HeNB *7*发射功率。
{■Λ'Λ… } : 以用户 Λ为中心所构建的上行 HeNB子群或群成员列表。
图 6A 示出了根据本发明的实施例的在密集部署家庭基站环境下构建上行家庭基 站定义 1和定义 2的具体实施流程图。
如图 6A 所示, 根据本发明的实施例的在密集部署家庭基站环境下构建上行家庭 基站定义 1和定义 2的具体实施流程如下:
步骤 601 : 用户与其所在 HeNB 小区确认工作状态, 系统标记有用户存在的
HeNB小区, 初始化数组 CJt = , {Jk^。
步骤 602: 每个处于工作状态的 HeNB ( ^ = 1 ) 利用其内部的 UE测量周围 HeNB 小区的信号强度, 或者通过 HeNB 自身的模块测量周围 HeNB的信号强度。
在本步骤中, 可以在用户终端侧进行测量, 也可以通过基站侧的测量模块 (又称 作接收机模块) 进行测量, 也可以使用附属于基站的传感器进行测量。 基站分群可以 基于其他基站至所述当前基站小区的路径损耗, 也可以基于其他基站至所述当前基站 小区的实时干扰强度 (信号强度) 。
如前所述, 所述基站不但可以包括 HeNB , 实际上也可以包括 Pico cell , RRH等。 而测量邻小区基站发射的信号的接收强度, 测量信号可以包括 CRS ( Common Reference Signal ) , CSI-RS(Channel Status Indication-Reference signal) , DMRS(Demodulation Reference Symbol) , PSS/SSS (Primary Synchronization Signal/Secondary Synchronization Signal), PBCH(Physical Broadcast Channel)等中的一种, 或者一种以上。
具体地, 测量方式包括:
选项 1 : 测量由基站侧的测量模块实施;
选项 2: 测量由归属于所述当前基站服务的用户终端实施, 并上报基站。 这种情 况下, 基站侧可以选择将邻区基站的发送的被测量信号的相关信息通知用户, 辅助用 户进行测量;
选项 3 : 测量由依附于所述当前基站的传感器进行, 基站会实时的得知传感器的 测量值。
对于上述信号强度的测量方法, 可以同时釆取多种方式, 综合利用不同测量方式 的优点, 进而既可以做到余度控制, 保证对于所述信号强度的有效釆集, 同时, 也可 以起到对釆集到的信号强度数据进行校正, 保证数据准确度的作用。
步骤 603 : 对于任意 HeNB Jk, 利用传感器釆集到的周围 HeNB Jm的信号度^^ 和 HeNB Jm状态 CJm = ^,P , {Jm}}中的 Pj»两个信号计算 HeNB jm 到 HeNB jk 边缘的 路径损耗 7» 。 设 LM。为 HeNB jm到其有效通信边缘的路径损耗。 当 LKM < L 时, 认为 HeNB jk 和 HeNB jm 之间有机会存在上行干扰。 更新 HeNB jk的状态参数
本步骤在处于工作状态的所有 HeNB中同时独立发生。
需要注意的是, 如果根据信号强度来判断基站之间是否存在干扰, 则不需要进行 路径损耗的计算, 将检测到的信号强度与阈值进行比较, 即可判断出基站之间是否存 在干扰, 具体地, 则判断基站之间是否存在干扰的方式包括以下:
选项 1 : 在网络侧, 通过测量的邻区基站的信号强度, 来判断某个或某些邻区基 站是否对当前本区基站或者用户造成强干扰, 如果是, 则加入基站子群, 如果不是,
则不加入基站子群;
选项 2: 在网络侧, 通过测量的邻区基站的信号强度, 计算出路径损耗, 判断对 应邻区基站是否对所述当前基站小区造成强干扰, 如果是, 则加入基站子群, 如果不 是, 则不加入基站子群。
步骤 604: 将每个 HeNB 构建的子群信息在其子群内广播或者通过 HeNB之间的 有线 /无线链路进行交互传递。 HeNB之间需要传递干扰信息, 由于 HeNB是依据建筑 分布来安装, 一般在统一建筑内的 HeNB 才能构成密集型部署, 所以一定区域内密集 部署的 HeNB数量是有限的, 广播所带来的数据量和时延不会对系统带来太大的工作 量。
步骤 605: 每个 HeNB 对其自身的子群信息和所有收到的子群信息取"并"运算。 把干扰控制中存在联系或潜在存在联系的小区合并到一个子群内。
步骤 606: 判断每个 HeNB的子群信息是否稳定, 如果上行 HeNB子群中某一个 上行 HeNB 子群的成员还在变化, 跳转至步骤 604 ; 如果上行 HeNB 子群中每个 HeNB子群成员固定不变, 这时的上行 HeNB子群就是上行 HeNB群。
上述的步骤 605和步骤 606中, 提供了一种分布式的控制方式, 基站之间可以通 过 X2 , S1 接口, 或者空口, 交互各自构建的子群信息, 然后更新维护自身存储的基 站子群信息列表。
另外, 本发明的实施例中提供一种集中式的控制方式, serving center基站, 或者 OAM 侧, 或者其他上层的网元通过各个基站上报的各自构建的子群信息, 更新维护 各个基站的干扰群信息列表。
步骤 607: 上行 HeNB群构建完成, 算法结束。
具体实施过程如下:
如图 6B所示, 假设 10个 HeNB密集部署在一定范围内。 虚线表示每个 HeNB的 有效通信范围边界, 每个 HeNB的边界存在各自用以检测周围 HeNB信号强度的传感 器。 图 6B 中 HeNB有效通信范围的重叠表示 HeNB之间存在的上行干扰或潜在上行 干扰。 灰色的小区表示该小区内有用户正在通信, 本图中正在通信的小区有: J2 ,
其中 J7小区内没有通信用户, 不会对周围 HeNB产生上行干扰。
存在用户的 HeNB 定时向周围发射功率测试信号, HeNB Jk利用传感器釆集其他 HeNB ( Jm ) 在本小区边缘的功率测试信号强度 Ρ '^»。 HeNB Jk边缘会部署多个传感器, 取多个传感器中信号最强的一个作为 P 。
在图 6B中, 对于存在用户的家庭基站:
Ji的传感器能够检测到到 J2的测试信号 P 、 Ρ ;
h的传感器能够检测到到 、 J3的测试信号 p 、 p ;
J3的传感器能够检测到到 】 J2、 J4、 J5、 J6的测试信号^^、 p、 p 、 p'j"、
J4的传感器能够检测到到 J3、 J6的测试信号尸 '、 尸 ;
J5的传感器能够检测到到 J3、 J6、 J8的测试信号 ^、 Ρ' P
J6的传感器能够检测到到 h. J4、 J5的测试信号 、 P 、 P
J8的传感器能够检测到到 J5、 J6、 j9的测试信号^5^、 ρ'^、 P 、
ρ< Ρ'
的传感器能够检测到到 J8、 Jio的测试信号 、 Λ '。、 ;
JlO的传感器能够检测到到 J9的测试信号 ";
根据 HeNB初始化状态和传感器测试到的信号, HeNB Jk计算其附近 HeNB Jm在
Jk 边缘的路径损耗 J" 。 。是 HeNB ^到其小区通信边缘产生的路径损耗。 如果 »。, 则说明 HeNB Jm与 HeNB Jk的通信范围出现重叠, 用户在 HeNB Jm 内 的重叠区域内通信时, 会对 HeNB Jk 产生干扰。
不失一般性, 本发明假设图 6B中通信范围重叠情况如下:
与 与通信范围存在重叠现象的 HeNB有 : J2;
与 J2与通信范围存在重叠现象的 HeNB有 : Ji、 h;
与 J3与通信范围存在重叠现象的 HeNB有 : J2、 J4;
与 J4与通信范围存在重叠现象的 HeNB有 : J3、 J6;
与 J5与通信范围存在重叠现象的 HeNB有: J6;
与 J6与通信范围存在重叠现象的 HeNB有: J5、 J4;
与 J8与通信范围存在重叠现象的 HeNB有: J9;
与 J9与通信范围存在重叠现象的 HeNB有: J8、 Jio;
与 J10与通信范围存在重叠现象的 HeNB有: J9。
根据此测试数据, 更新 HeNB的状态参数 CJm ={S,P,{
这时每个 HeNB根据它与周围 HeNB通信范围的重叠情况更新了上行 HeNB子群 信息。 这时的 Jk构建的上行 HeNB子群都是与 Jk存在直接上行干扰。
Cj4=(l, ,{J2,J3,J4,J5,J6}j . Cj5 =)1, ,{J4,J5,J6}j . cj6 = \,P ,{J3,J4,J5,J(
经判断, 10个 HeNB 中仅有 j2和 J9的子群信息没有变化, 而其所在上行 HeNB 子群的其他 HeNB子群信息与广播前不同, 本发明认为该子群的构建不稳定, 需要重 复步骤 604和步骤 605。
C = l,Pr ,{J J2,J3,J4,Jt (^^ι,^,μ,Λ ,Λ,Λ}}.
C.^l P AJ J2,J3,J4,J( Cj4 ={l,P {J^J^J^ ,}}
CJs J2,J3,J4,J5,J(
Cj8 = = 1, PJw , {J8 , J9 , Jio
对于 其上行 HeNB子群中 ^、 J2的子群信息发生变化, J3的子群信息没有发 生变化, 故 ^的子群仍需要重复步骤 604、 步骤 605.
以此类推 、 J2、 J3、 J4、 J5、 J6需要重复步骤 604、 步骤 605。
而 J8、 J9、 J1()子群中各个 HeNB的子群信息没有发生变化, 故 J8、 J9、 J1()的子群 成员稳定, 他们构建了上行 HeNB群, 对于 J8、 J9、 Jio, 算法结束。
再次执行步骤 604和步骤 605后, 得到的子群信息如下:
CA = {Ι,Ρ ,{^2,^4,^6}} . cj2 ={l, ,{J1,J2,J ,J4,J5,J6}} > ={I, , μ,Λ,^,Λ,Λ,Λ}} . cj4 ={i, ,{J1,J2,J ,J4,J5,J6}} > CJ5 = {\,P5 ,{J J2,J3,J4,J5,J6}} CJ6 = {\,P6,{J J2,J3,J4,J5,J6}} ^ 经判断子群信息稳定, J2、 J3、 J4、 J5、 J6构建上行 HeNB群, 算法结束。
本发明提出了上行 HeNB群的概念, 并设计其构建过程, 结合密集部署 HeNB的 特点, 为 HeNB间的上行干扰控制方法干扰提出一种动态的自组织结构。
本发明还提供了一种机器可读程序, 当在基站中执行所述程序时, 所述程序使得 机器在所述基站中执行上述基站分群方法。
本发明还提供了一种存储有机器可读程序的存储介质, 其中所述机器可读程序使 得机器在基站中执行上述基站分群方法。
同样, 本发明同样可以应用于终端之间点对点的通信的场景, 如图 7所示的根据 本发明的实施例的终端分群方法。 该终端分群方法包括: 步骤 702, 获取其他终端的 信号强度, 和 /或所述其他终端至当前终端的路径损耗; 步骤 704, 根据所述信号强度 和 /或所述路径损耗, 判断所述其他终端与所述当前终端之间是否存在干扰; 步骤 706, 根据所述其他终端与所述当前终端之间是否存在干扰的判断结果, 确定所述当前终端 的干扰终端群。
在上述技术方案中, 优选地, 所述获取所述其他终端至所述当前终端的路径损耗 包括: 从所述其他终端接收所述其他终端的发射功率; 根据所述其他终端的信号强度 和发射功率, 确定所述其他终端至所述当前终端的路径损耗。
在上述技术方案中, 优选地, 还包括: 根据所述其他终端发送的与所述其他终端 的干扰终端群相关的信息, 更新所述当前终端的干扰终端群。
在上述技术方案中, 优选地, 还包括: 将与所述当前终端的干扰终端群相关的信 息发送至所述当前终端的干扰终端群中的其他终端。
在上述技术方案中, 优选地, 还包括: 将与所述当前终端的干扰终端群相关的信
息发送至第三方设备; 从所述第三方设备接收新的与干扰终端群相关的信息, 以根据 所述新的与干扰终端群相关的信息来更新所述当前终端的干扰终端群。
在上述技术方案中, 优选地, 还包括: 从所述其他终端接收所述其他终端的干扰 终端群的信息; 根据所述其他终端的干扰终端群的信息和所述当前终端的干扰终端群, 更新所述当前终端和所述其他终端的干扰终端群; 将所述其他终端的干扰终端群的信 息, 发送至所述其他终端。
在上述技术方案中, 优选地, 所述更新包括: 取所述其他终端的干扰终端群与所 述当前终端的干扰终端群的并集, 作为经更新的当前终端的干扰终端群。
本发明还提供了一种机器可读程序, 其中当在终端中执行所述程序时, 所述程序 使所述终端执行如上述任一技术方案中所述的终端分群方法。
本发明还提供了一种存储有机器可读程序的存储介质, 其中所述机器可读程序使 所述终端执行如上述任一技术方案中所述的终端分群方法。
图 8示出了根据本发明的实施例的终端的框图。
该终端 800 包括: 获取模块 802 , 用于获取其他终端的信号强度, 和 /或所述其他 终端至所述终端的路径损耗; 干扰判断模块 804 , 根据所述信号强度和 /或所述路径损 耗, 判断所述其他终端与所述终端之间是否存在干扰; 群确定模块 806 , 根据所述其 他终端与所述终端之间是否存在干扰的判断结果, 确定所述终端的干扰终端群。
在上述技术方案中, 还可以包括: 信息接收模块 808 , 从所述其他终端接收所述 其他终端的干扰终端群的信息; 更新模块 810 , 根据所述其他终端的干扰终端群的信 息和所述终端的干扰终端群, 更新所述终端和所述其他终端的干扰终端群。
以上结合附图详细说明了本发明的技术方案。 通过本技术方案的应用, 能够在密 集部署基站的环境下, 基于有效的测量来判定哪些基站之间存在干扰, 划分出相互之 间存在干扰的基站群, 以便于为后续的基站间干扰控制方法提供参考。 同样, 还能够 在终端对终端的点对点通信的场合下, 判断哪些终端之间存在干扰, 划分出相互之间 存在干扰的终端群, 以便于为后续的终端间干扰控制方法提供参考。
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、 改进等, 均应包含在本发明的保护范围之内。
Claims
1 . 一种基站分群方法, 包括:
在当前基站的小区内获取其他基站的信号强度, 和 /或所述其他基站和 /或被所述 其他基站服务的终端至所述当前基站的路径损耗;
根据所述信号强度和 /或所述路径损耗, 判断所述其他基站与当前基站之间是否存 在干扰;
根据所述其他基站与所述当前基站之间是否存在干扰的判断结果, 确定所述当前 基站的干扰基站群。
2. 根据权利要求 1 所述的基站分群方法, 其中, 所述在当前基站小区内获取其 他基站的信号强度包括:
通过所述当前基站中的接收机模块来测量所述其他基站的信号强度; 和 /或 通过所述当前基站小区内设置的传感器模块来测量所述其他基站的信号强度; 和 / 或
从被所述当前基站服务的终端接收所述其他基站的信号强度, 其中所述其他基站 的信号强度通过被所述当前基站服务的终端测量。
3. 根据权利要求 1 所述的基站分群方法, 其中, 所述获取所述其他基站和 /或被 所述其他基站服务的终端至所述当前基站的路径损耗包括:
从所述其他基站接收所述其他基站的发射功率;
根据所述其他基站的信号强度和发射功率, 确定所述其他基站和 /或被所述其他基 站服务的终端至所述当前基站的路径损耗。
4. 根据权利要求 1 所述的基站分群方法, 其中, 所述获取所述其他基站和 /或被 所述其他基站服务的终端至所述当前基站的路径损耗包括:
从所述其他基站接收所述当前基站和 /或被所述当前基站服务的终端至所述其他基 站的路径损耗;
根据所述当前基站和 /或被所述当前基站服务的终端至所述其他基站的路径损耗, 确定所述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗。
5. 根据权利要求 1所述的基站分群方法, 其中, 还包括:
根据所述其他基站发送的与所述其他基站的干扰基站群相关的信息, 更新所述当
前基站的干扰基站群。
6. 根据权利要求 5所述的基站分群方法, 还包括:
将与所述当前基站的干扰基站群相关的信息发送至所述当前基站的干扰基站群中 的其他基站。
7. 根据权利要求 1所述的基站分群方法, 还包括:
将与所述当前基站的干扰基站群相关的信息发送至特定基站和 /或特定网络设备; 从所述特定基站和 /或特定网络设备接收新的与干扰基站群相关的信息, 以根据所 述新的与干扰基站群相关的信息来更新所述当前基站的干扰基站群。
8. 根据权利要求 1所述的基站分群方法, 还包括:
从所述其他基站接收所述其他基站的干扰基站群的信息;
根据所述其他基站的干扰基站群的信息, 和所述当前基站的干扰基站群, 更新所 述当前基站和所述其他基站的干扰基站群;
将所述其他基站的干扰基站群的信息, 发送至所述其他基站。
9. 根据权利要求 5所述的基站分群方法, 其中, 所述更新包括:
取所述其他基站的干扰基站群与所述当前基站的干扰基站群的并集, 作为经更新 的当前基站的干扰基站群。
10. 根据权利要求 1所述的基站分群方法, 其中, 所述当前基站通过有线和 /或无 线链路与所述其他基站进行通信。
1 1 . 根据权利要求 1所述的基站分群方法, 其中, 还包括:
由所述当前基站按预定发射功率发出信号。
12. 根据权利要求 1至 1 1中任一项所述的基站分群方法, 还包括:
检测所述当前基站小区内是否存在终端, 并仅在所述当前基站小区内存在终端时 执行所述获取当前基站小区内所述其他基站的信号强度, 和 /或所述其他基站至所述当 前基站的路径损耗的步驟。
13. 一种基站, 包括:
信号强度 /路径损耗获取模块, 在当前基站的小区内获取其他基站的信号强度, 和 /或所述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗;
干扰判断模块, 根据所述信号强度和 /或所述路径损耗, 判断所述其他基站与当前 基站之间是否存在干扰;
群确定模块, 根据所述其他基站与所述当前基站之间是否存在干扰的判断结果, 确定所述当前基站的干扰基站群。
14. 根据权利要求 13 所述的基站, 其中, 所述信号强度 /路径损耗获取模块通过 在所述当前基站中的接收机模块来测量所述其他基站的信号强度; 和 /或所述信号强度 /路径损耗获取模块通过在所述当前基站小区内设置的传感器模块来测量所述其他基站 的信号强度; 和 /或所述信号强度 /路径损耗获取模块从被所述当前基站服务的终端接 收所述其他基站的信号强度, 其中所述其他基站的信号强度通过被所述当前基站服务 的终端测量。
15. 根据权利要求 13 所述的基站, 其中, 所述信号强度 /路径损耗获取模块从所 述其他基站接收所述其他基站的发射功率, 并根据所述其他基站的信号强度和发射功 率, 确定所述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗。
16. 根据权利要求 13 所述的基站, 其中, 所述信号强度 /路径损耗获取模块从所 述其他基站接收所述当前基站和 /或被所述当前基站服务的终端至所述其他基站的路径 损耗, 根据所述当前基站和 /或被所述当前基站服务的终端至所述其他基站的路径损耗, 确定所述其他基站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗。
17. 根据权利要求 13 所述的基站, 其中, 所述群确定模块还根据所述其他基站 发送的与所述其他基站的干扰基站群相关的信息, 更新所述当前基站的干扰基站群。
18. 根据权利要求 17 所述的基站, 其中, 所述群确定模块还将与所述当前基站 的干扰基站群相关的信息发送至所述当前基站的干扰基站群中的其他基站。
19. 根据权利要求 13 所述的基站, 其中, 所述群确定模块还将与所述当前基站 的干扰基站群相关的信息发送至特定基站和 /或特定网络设备, 并从所述特定基站和 / 或特定网络设备接收新的与干扰基站群相关的信息, 以根据所述新的与干扰基站群相 关的信息来更新所述当前基站的干扰基站群。
20. 根据权利要求 13 所述的基站, 其中, 所述群确定模块从所述其他基站接收 所述其他基站的干扰基站群的信息, 根据所述其他基站的干扰基站群的信息, 和所述 当前基站的干扰基站群, 更新所述当前基站和所述其他基站的干扰基站群, 并将所述 其他基站的干扰基站群的信息, 发送至所述其他基站。
21 . 根据权利要求 17 所述的基站, 其中, 所述群确定模块取所述其他基站的干 扰基站群与所述当前基站的干扰基站群的并集, 作为经更新的当前基站的干扰基站群。
22. 根据权利要求 13 所述的基站, 其中, 所述当前基站通过有线和 /或无线链路 与所述其他基站进行通信。
23. 根据权利要求 13所述的基站, 其中, 还包括:
发射功率控制模块, 控制所述当前基站按预定发射功率发出信号。
24. 根据权利要求 13至 23中任一项所述的基站, 其中, 还包括:
检测模块, 检测所述当前基站小区内是否存在终端, 并仅在所述当前基站小区内 存在终端时, 启动所述信号强度 /路径损耗获取模块。
25. 一种系统, 包括基站和终端, 其中, 所述基站中的当前基站在所述当前基站 小区内获取其他基站的信号强度, 和 /或所述其他基站和 /或被所述其他基站服务的终 端至所述当前基站的路径损耗, 并根据所述信号强度和 /或所述路径损耗, 判断所述其 他基站与当前基站之间是否存在干扰, 以及所述其他基站与所述当前基站之间是否存 在干扰的判断结果, 确定所述当前基站的干扰基站群。
26. 根据权利要求 25 所述的系统, 其中, 所述当前基站通过在所述当前基站中 的接收机模块来测量所述其他基站的信号强度, 和 /或通过在所述当前基站小区内设置 传感器模块来测量所述其他基站的信号强度, 和 /或从被所述当前基站服务的终端接收 所述其他基站的信号强度, 其中所述其他基站的信号强度通过被所述当前基站服务的 终端测量。
27. 根据权利要求 25 所述的系统, 其中, 所述当前基站从所述其他基站接收所 述其他基站的发射功率, 并根据所述其他基站的信号强度和发射功率, 确定所述其他 基站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗。
28. 根据权利要求 25 所述的系统, 其中, 所述当前基站从所述其他基站接收所 述当前基站和 /或被所述当前基站服务的终端至所述其他基站的路径损耗, 根据所述当 前基站和 /或被所述当前基站服务的终端至所述其他基站的路径损耗, 确定所述其他基 站和 /或被所述其他基站服务的终端至所述当前基站的路径损耗。
29. 根据权利要求 25 所述的系统, 其中, 所述当前基站还根据所述其他基站发 送的与所述其他基站的干扰基站群相关的信息, 更新所述当前基站的干扰基站群。
30. 根据权利要求 29 所述的系统, 其中, 所述当前基站还将与所述当前基站的 干扰基站群相关的信息发送至所述当前基站的干扰基站群中的其他基站。
31 . 根据权利要求 25 所述的系统, 其中, 所述当前基站还将与所述当前基站的 干扰基站群相关的信息发送至特定基站和 /或特定网络设备, 并从所述特定基站和 /或 特定网络设备接收新的与干扰基站群相关的信息, 以根据所述新的与干扰基站群相关 的信息来更新所述当前基站的干扰基站群。
32. 根据权利要求 25 所述的系统, 其中, 所述当前基站从所述其他基站接收所 述其他基站的干扰基站群的信息, 根据所述其他基站的干扰基站群的信息, 和所述当 前基站的干扰基站群, 更新所述当前基站和所述其他基站的干扰基站群, 并将所述其 他基站的干扰基站群的信息, 发送至所述其他基站。
33. 根据权利要求 29 所述的系统, 其中, 所述当前基站取所述其他基站的干扰 基站群与所述当前基站的干扰基站群的并集, 作为经更新的当前基站的干扰基站群。
34. 根据权利要求 25 所述的系统, 其中, 所述当前基站通过有线和 /或无线链路 与所述其他基站进行通信。
35. 根据权利要求 25 所述的系统, 其中, 所述当前基站控制所述当前基站按预 定发射功率发出信号。
36. 根据权利要求 25至 35 中任一项所述的系统, 其中, 所述当前基站检测所述 当前基站小区内是否存在终端, 并仅在所述当前基站小区内存在终端时, 获取所述信 号强度和 /或所述路径损耗。
37. 一种机器可读程序, 其中当在基站中执行所述程序时, 所述程序使得机器在 所述基站中执行如权利要求 1至 12中的任一项权利要求所述的基站分群方法。
38. 一种存储有机器可读程序的存储介质, 其中所述机器可读程序使得机器在基 站中执行如权利要求 1至 12中的任一项权利要求所述的基站分群方法。
39. 一种终端分群方法, 包括:
获取其他终端的信号强度, 和 /或所述其他终端至当前终端的路径损耗; 根据所述信号强度和 /或所述路径损耗, 判断所述其他终端与所述当前终端之间是 否存在干扰;
根据所述其他终端与所述当前终端之间是否存在干扰的判断结果, 确定所述当前 终端的干扰终端群。
40. 根据权利要求 39 所述的终端分群方法, 其中, 所述获取所述其他终端至所 述当前终端的路径损耗包括:
从所述其他终端接收所述其他终端的发射功率;
根据所述其他终端的信号强度和发射功率, 确定所述其他终端至所述当前终端的 路径损耗。
41 . 根据权利要求 39所述的终端分群方法, 其中, 还包括:
根据所述其他终端发送的与所述其他终端的干扰终端群相关的信息, 更新所述当 前终端的干扰终端群。
42. 根据权利要求 41所述的终端分群方法, 还包括:
将与所述当前终端的干扰终端群相关的信息发送至所述当前终端的干扰终端群中 的其他终端。
43. 根据权利要求 41所述的终端分群方法, 还包括:
将与所述当前终端的干扰终端群相关的信息发送至第三方设备;
从所述第三方设备接收新的与干扰终端群相关的信息, 以根据所述新的与干扰终 端群相关的信息来更新所述当前终端的干扰终端群。
44. 根据权利要求 39至 43中任一项所述的终端分群方法, 还包括:
从所述其他终端接收所述其他终端的干扰终端群的信息;
根据所述其他终端的干扰终端群的信息和所述当前终端的干扰终端群, 更新所述 当前终端和所述其他终端的干扰终端群;
将所述其他终端的干扰终端群的信息, 发送至所述其他终端。
45. 根据权利要求 44所述的终端分群方法, 其中, 所述更新包括:
取所述其他终端的干扰终端群与所述当前终端的干扰终端群的并集, 作为经更新 的当前终端的干扰终端群。
46. 一种机器可读程序, 其中当在终端中执行所述程序时, 所述程序使所述终端 执行如权利要求 39至 45中的任一项权利要求所述的终端分群方法。
47. 一种存储有机器可读程序的存储介质, 其中所述机器可读程序使所述终端执 行如权利要求 39至 45中的任一项权利要求所述的终端分群方法。
48. 一种终端, 包括:
获取模块, 用于获取其他终端的信号强度, 和 /或所述其他终端至所述终端的路径 损耗;
干扰判断模块, 根据所述信号强度和 /或所述路径损耗, 判断所述其他终端与所述
终端之间是否存在干扰;
群确定模块, 根据所述其他终端与所述终端之间是否存在干扰的判断结果, 确定 所述终端的干扰终端群。
49. 根据权利要求 48所述的终端, 还包括:
信息接收模块, 从所述其他终端接收所述其他终端的干扰终端群的信息; 更新模块, 根据所述其他终端的干扰终端群的信息和所述终端的干扰终端群, 更 新所述终端和所述其他终端的干扰终端群。
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