WO2015172544A1 - Procédé pour une communication dans un réseau hétérogène et une petite station de base - Google Patents

Procédé pour une communication dans un réseau hétérogène et une petite station de base Download PDF

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Publication number
WO2015172544A1
WO2015172544A1 PCT/CN2014/091554 CN2014091554W WO2015172544A1 WO 2015172544 A1 WO2015172544 A1 WO 2015172544A1 CN 2014091554 W CN2014091554 W CN 2014091554W WO 2015172544 A1 WO2015172544 A1 WO 2015172544A1
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Prior art keywords
base station
target
small base
communication system
link
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PCT/CN2014/091554
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English (en)
Chinese (zh)
Inventor
夏林峰
汪孙节
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华为技术有限公司
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Publication of WO2015172544A1 publication Critical patent/WO2015172544A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H04W16/20—Network planning tools for indoor coverage or short range network deployment

Definitions

  • Embodiments of the present invention relate to the field of communications, and more particularly, to a method and small base station for communicating in a heterogeneous network.
  • the existing heterogeneous network all small cells use a fixed communication system on the access link and the backhaul link, for example, on the access link.
  • LTE Long Term Evolution
  • WiFi wireless Fidelity
  • WiFi Wireless Fidelity
  • the fixed configuration communication system may not be applicable to all small base stations.
  • the configured communication system is applicable to a small base station during configuration
  • the backhaul resources available to the small base station and the types of user equipment served by the small base station dynamically change over time, while dynamically changing.
  • the fixed configuration communication system may not always be applicable to the small base station.
  • the communication system adopted by the small base station on the access link or the backhaul link is not the optimal communication system applicable to the small base station, the overall performance of the system is low and the user experience is poor.
  • the present invention provides a method and small base station for communicating in a heterogeneous network, which can avoid the impact on the system performance caused by the small base station adopting a pre-fixed communication system on the target link.
  • a first aspect provides a method for communicating in a heterogeneous network, including: determining, by a first small base station, a target of the target link from a plurality of candidate communication systems supported by the first small base station on a target link a communication system, wherein the target link includes at least one of the following links: an access chain And a backhaul link; if the target communication system of the target link is different from the current communication system of the first small base station on the target link, the first small base station changes the communication standard adopted on the target link to The target communication system uses the target communication system to communicate on the target link.
  • the target link includes a backhaul link
  • the first small base station determines a target of the target link from multiple candidate communication systems supported by the first small base station on the target link.
  • a communication system comprising: the first small base station receiving a broadcast signal sent by at least one macro base station; the first small base station determining a target macro base station from the at least one macro base station according to a signal strength of the received broadcast signal, where The signal strength of the broadcast signal sent by the target macro base station received by the first small base station exceeds a first threshold; the first small base station initiates a process of accessing the target macro base station; if the first small base station successfully accesses the target macro base a station, the first small base station determines a target communication system of the backhaul link as a communication system adopted by the target macro base station.
  • the target link includes a backhaul link, where the first small base station is in multiple candidate communication systems supported by the first small base station on the target link.
  • Determining a target communication system of the target link comprising: the first small base station receiving indication information of the controller, where the indication information is used to indicate a target communication system of the backhaul link, wherein the target communication system of the backhaul link is The controller determines the current network state of the plurality of candidate macro base stations corresponding to the first small base station; the first small base station determines a target communication system of the backhaul link according to the indication information.
  • the target communication system of the target link is determined by the first small base station from multiple candidate communication systems supported by the first small base station on the target link. Thereafter, the method further includes: if the target communication system includes a plurality of communication systems, the first small base station aggregates the backhaul resources corresponding to the plurality of communication systems respectively; and the first small base station adopts the target communication system at the target The communication is performed on the link, and the first small base station uses the aggregated backhaul resources to communicate on the backhaul link.
  • the target link includes an access link
  • the first small base station supports multiple candidate communication systems supported by the first small base station on the target link. Determining a target communication system of the target link, including: the first small base station is located within a coverage of the first small base station under each candidate communication system of the multiple candidate communication systems supported by the access link.
  • the plurality of user equipments send a wakeup message, where the wakeup message is used to indicate that the user equipment that received the wakeup message returns a response message; the first small base station receives the response message sent by the user equipment according to the wakeup message, and determines the received response Candidate communication system corresponding to the message And determining, by the first small base station, a target communication system of the access link according to the candidate communication system corresponding to the received response message.
  • the first small base station determines, according to the candidate communication system corresponding to the received response message, a target communication system of the access link, including: Determining, by the first small base station, a number of response messages corresponding to the respective candidate communication systems; the first small base station determining, as the access link, a candidate communication system having the largest number of corresponding response messages in the plurality of candidate communication systems Target communication system.
  • the response message is further used to indicate a signal strength of the broadcast signal sent by the first small base station that is received by the user equipment that sends the response message; Determining, by the small base station, the target communication system of the access link according to the candidate communication system corresponding to the received response message, the first small base station determining the number of target response messages corresponding to the respective communication systems, where The signal strength indicated by the target response message exceeds a second threshold; the first small base station determines the candidate communication system with the largest number of corresponding target response messages in the plurality of candidate communication systems as the target communication standard of the access link. .
  • the method further includes: receiving, by the first small base station, request information sent by the second small base station or a macro base station that currently provides a backhaul service for the first small base station, where the request message is used to request the first small base station to change the a communication system of the target link; the first small base station determines, according to the request message, a step of performing a target communication system for determining the target link from the plurality of candidate communication systems supported by the first small base station on the target link .
  • a small base station including: a determining module, configured to determine a target communication system of the target link from a plurality of candidate communication systems supported by the small base station on a target link, where the target chain The path includes at least one of the following links: an access link and a backhaul link; and a communication module, if the target communication system of the target link determined by the determining module is different from the first small base station in the target chain The current communication system on the road changes the communication system adopted on the target link to the target communication system, and communicates on the target link by using the target communication system.
  • the target link includes a backhaul link
  • the determining module includes: a first receiving unit, configured to receive a broadcast signal sent by the at least one macro base station; and a first determining unit, configured to a signal strength of the broadcast signal received by the first receiving unit, determining a target macro base station from the at least one macro base station, where the receiving unit receives the target macro base station The signal strength of the broadcast signal exceeds a first threshold; the access unit is configured to initiate a process of accessing the target macro base station determined by the first determining unit, and the second determining unit is configured to: if the access unit initiates the access The process of the target macro base station is successfully completed, and the target communication system of the backhaul link is determined as the communication standard adopted by the target macro base station.
  • the target link includes a backhaul link
  • the determining module includes: a second receiving unit, configured to receive indication information of the controller, where the indication information is used Determining a target communication system of the backhaul link, wherein a target communication system of the backhaul link is determined by the controller according to a current network state of a plurality of candidate macro base stations corresponding to the first small base station; and a third determining unit And determining, according to the indication information received by the second receiving unit, a target communication system of the backhaul link.
  • the small base station further includes: a resource aggregation module, configured to: if the target communication system determined by the determining module includes multiple communication systems, the multiple communications The backhaul resources corresponding to the system are aggregated; the communication module is further configured to use the backhaul resources aggregated by the resource aggregation module to communicate on the backhaul link.
  • a resource aggregation module configured to: if the target communication system determined by the determining module includes multiple communication systems, the multiple communications The backhaul resources corresponding to the system are aggregated; the communication module is further configured to use the backhaul resources aggregated by the resource aggregation module to communicate on the backhaul link.
  • the target link includes an access link
  • the determining module includes: a sending unit, where multiple candidate communication systems are supported by the access link. Sending, by each of the candidate communication systems, a wake-up message to a plurality of user equipments located in the coverage of the first small base station, the wake-up message is used to indicate that the user equipment that receives the wake-up message returns a response message; and the third receiving unit, And a fourth determining unit, configured to determine a candidate communication system corresponding to the response message received by the third receiving unit, and according to the received The candidate communication system corresponding to the response message determines the target communication system of the access link.
  • the fourth determining unit is specifically configured to: determine a quantity of response messages corresponding to the respective candidate communication systems; and corresponding to the multiple candidate communication systems The candidate communication system with the largest number of response messages is determined as the target communication system of the access link.
  • the response message is further used to indicate a signal strength of the broadcast signal sent by the first small base station that is received by the user equipment that sends the response message;
  • the determining unit is specifically configured to: determine a quantity of the target response message corresponding to the respective communication system, where the signal strength indicated by the target response message exceeds a second threshold; and the corresponding target response message of the plurality of candidate communication systems The largest number of candidate communication systems Determined as the target communication standard for the access link.
  • the small base station further includes: a receiving module, configured, by the determining module, a plurality of candidate communication systems supported by the first small base station on the target link Before determining the target communication system of the target link, receiving request information sent by the second small base station or the macro base station currently providing the backhaul service for the first small base station, the request message is used to request the first small base station to change the target a communication system of the link; the determining module is specifically configured to determine, according to the request message received by the receiving module, performing the determination of the target link from the multiple candidate communication systems supported by the first small base station on the target link The steps of the target communication system.
  • the method for communicating in a heterogeneous network and the small base station are provided, and the target communication system of the target link is determined from a plurality of communication systems supported by the small base station on the target link, and when the target is When the communication system is different from the current communication system of the small base station on the target link, the communication system adopted on the target link is changed to the target communication system, and the target communication system is used to communicate on the target link.
  • the target communication system adopted by the small base station on the target link is more in line with the current network state, and the system performance is prevented from being affected by the pre-fixed communication system of the small base station on the target link. , thereby improving the overall performance of the system and improving the user experience.
  • FIG. 1 is a schematic structural diagram of a heterogeneous network according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for performing communication in a heterogeneous network according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an example of a method of communicating in a heterogeneous network according to an embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of a small base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a determining module of a small base station according to an embodiment of the present invention.
  • FIG. 6 is another schematic block diagram of a determining module of a small base station according to an embodiment of the present invention.
  • FIG. 7 is another schematic block diagram of a small base station according to an embodiment of the present invention.
  • FIG. 8 is still another schematic block diagram of a determining module of a small base station according to an embodiment of the present invention.
  • FIG. 9 is still another schematic block diagram of a small base station according to an embodiment of the present invention.
  • FIG. 10 is a schematic block diagram of a small base station according to another embodiment of the present invention.
  • FIG. 11 is another schematic block diagram of a small base station according to another embodiment of the present invention.
  • the communication system of the embodiment of the present invention may correspond to various communication technologies, such as: Global System of Mobile communication (GSM), Code Division Multiple Access (CDMA), and wideband code division. (Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), Wireless
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • a user equipment may be referred to as a terminal (Mobile), a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), etc.
  • the user equipment may be A radio access network (RAN) communicates with one or more core networks.
  • the user equipment may be a mobile phone (or a cellular phone), a computer with a mobile terminal, etc., for example, the user equipment may also Portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange voice and/or data with a wireless access network.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station in LTE ( An evolved Node B, an eNB or an e-NodeB, or an access point (AP) in a Wireless Local Access Network (WLAN), which is not limited by the present invention.
  • BTS Base Transceiver Station
  • NodeB base station
  • AP access point
  • WLAN Wireless Local Access Network
  • FIG. 1 is a schematic architectural diagram of a heterogeneous network 100 including macro base stations 101 and 102, in accordance with an embodiment of the present invention.
  • the small base station 102 can be The system includes a micro base station (Micro), a pico base station (Pico), a femto base station (Femto), a low power base station (LPN, Low Power Node), a remote radio head (RRH), and the like.
  • the spectrum of the small base station may be a licensed spectrum, for example, a new carrier type (NCT, New Carrier Type) band of 3.5 GHz or higher, or one or more secondary component carriers of the LTE-A system (SCC, Secondary Component).
  • NCT New Carrier Type
  • SCC Secondary Component
  • Carrier can also be unlicensed spectrum, for example, WiFi band below 700MHz, 2.4GHz industrial scientific medical (ISM, Industrial Scientific Medical) band, 5GHz WiFi band, 60GHz wireless gigabit (WiGig, The spectrum of the Wireless Gigabit, etc., is even the spectrum of the white space of the television industry or the licensed shared access (LSA) of the Cognitive Radio (CR) system.
  • WiFi band below 700MHz 2.4GHz industrial scientific medical (ISM, Industrial Scientific Medical) band
  • 5GHz WiFi band 5GHz wireless gigabit
  • WiGig The spectrum of the Wireless Gigabit, etc.
  • LSA licensed shared access
  • CR Cognitive Radio
  • the coverage 104 of the small base station 102 is located within the coverage area 103 of the macro base station 101.
  • the macro base station 101 and the small base station 102 exchange data and/or signaling through a Backhaul connection, where the Backhaul connection may be a wired connection, for example, by using an optical fiber, a coaxial cable, a network cable, or the like; or a wireless link. For example, it is realized by millimeter waves, microwaves, or the like.
  • the Backhaul connection between the macro base station 101 and the small base station 102 can be implemented by using an X2 interface or a newly defined X3 interface. The specific implementation form of the Backhaul connection is not limited in the embodiment of the present invention.
  • a plurality of user equipments 105 are located within the coverage of the small base station 102, and the plurality of user equipments 105 and the small base stations 102 have an access link.
  • the small base station 102 supports multiple communication systems on both the access link and the Backhaul link, in the prior art, the communication system adopted by the small base station 102 on the access link and the Backhaul link is The communication system is fixedly set, and the pre-fixed communication system may not be the optimal communication system of the small base station 102, so that the overall performance of the system is low and the user experience is poor.
  • FIG. 2 is a schematic flowchart of a method 200 for performing communication in a heterogeneous network according to an embodiment of the present invention, which may be performed by a small base station (such as the small base station 102 in FIG. 1) in the heterogeneous network.
  • a small base station such as the small base station 102 in FIG. 1
  • the first small base station determines a target communication system of the target link from the multiple candidate communication systems supported by the first small base station on the target link, where the target link includes at least one of the following links. : Access link and backhaul link.
  • the first small base station may determine a target communication system on the target link from multiple candidate communication systems of the target link according to a current network state, where the target link may be an access link and/or a backhaul (Backhaul) )link. Specifically, the first small base station supports multiple candidate communication systems on the access link, and also supports multiple candidate communication systems on the Backhaul link, where a set of access link candidate communication systems composed of a plurality of candidate communication systems supported by the access link and a Backhaul link composed of a plurality of candidate communication systems supported by the first small base station on the Backhaul link
  • the candidate communication system set may be the same set, or different, but there is an intersection, or there is no intersection between the two, which is not limited by the embodiment of the present invention.
  • the first small base station changes the communication standard adopted on the target link to the target communication standard. And using the target communication system to communicate on the target link.
  • the current communication system of the target link may be a preset communication standard on the target link; and in the process of communicating by the first small base station, the target chain
  • the current communication system of the path may be the communication system currently used by the first small base station on the target link, but the embodiment of the present invention is not limited thereto.
  • the target link includes the access link
  • the target communication system of the access link determined by the first small base station in S210 is different from the current communication standard of the first small base station on the access link
  • the first small base station changes the communication standard of the access link from the current communication system to the target communication system of the access link determined in S210, and adopts the changed communication standard on the access link. Communicate.
  • the first A small base station changes the communication system of the Backhaul link from the current communication system to the target communication system of the Backhaul link determined in S210, and communicates on the Backhaul link using the changed communication system.
  • the small base station determines a target communication system of the target link from the plurality of communication systems supported by the small base station on the target link, and when the target When the communication system is different from the current communication system of the small base station on the target link, the communication system adopted on the target link is changed to the target communication system, and the target communication system is used to communicate on the target link.
  • the target communication system adopted by the small base station on the target link is more in line with the current network state, and the system performance is prevented from being affected by the pre-fixed communication system of the small base station on the target link. , thereby improving the overall performance of the system and improving the user experience.
  • the first small base station may determine a target communication system adopted on the Backhaul link when initially accessing the network or when performing handover or communication system reconfiguration.
  • the first small base station may determine, by using a set of the Backhaul link candidate communication system, the target communication system of the first small base station on the Backhaul link.
  • the target link includes a backhaul link, and correspondingly, in S210, the first small base station determines a target communication format of the target link from the multiple candidate communication systems supported by the first small base station on the target link.
  • the first small base station receives indication information of the controller, where the indication information is used to indicate a target communication system of the backhaul link, wherein the target communication system of the backhaul link is that the controller corresponds to the first small base station
  • the current network state of the plurality of candidate macro base stations is determined;
  • the first small base station determines a target communication system of the backhaul link according to the indication information.
  • the controller may be a radio network controller (RNC) or a macro base station that provides the Backhaul service for the first small base station, but the embodiment of the present invention does not limit this.
  • RNC radio network controller
  • macro base station that provides the Backhaul service for the first small base station
  • the controller may determine the multiple candidate macro base stations corresponding to the first small base station in multiple manners.
  • the multiple candidate macro base stations may be preset.
  • the multiple candidate macro base stations may be specifically a plurality of macro base stations around the first small base station; or the first small base station may also detect a broadcast signal, and report, to the controller, a macro base station corresponding to the broadcast signal detected by the first small base station, where The controller may determine the plurality of candidate macro base stations according to the report message of the first small base station, but the embodiment of the present invention is not limited thereto.
  • the controller may acquire current network state information of the multiple candidate macro base stations, and determine, according to current network state information of the multiple candidate macro base stations, the target macro base station of the first small base station and the communication adopted by the target macro base station The system is determined to be the target communication system of the first small base station on the Backhaul link.
  • the current network state information of the multiple candidate macro base stations may include: Backhaul load information of each candidate macro base station or information about signal strength of a broadcast signal sent by the first candidate small base station received by the first small base station, etc.
  • the backhaul load information may include the occupancy rate of the Backhaul resource and/or the number of Backhaul links, but the embodiment of the present invention is not limited thereto.
  • the current network state information may include Backhaul load information, and correspondingly, the controller may determine the candidate macro base station having the lightest Backhaul load among the plurality of candidate macro base stations as the target macro base station, but the present invention implements The example is not limited to this.
  • the target link includes a backhaul link
  • the first small base station determines the target from the multiple candidate communication systems supported by the first small base station on the target link.
  • the target communication system for the link including:
  • the first small base station receives a broadcast signal sent by at least one macro base station
  • the target macro base station Determining, by the first small base station, the target macro base station from the at least one macro base station according to the signal strength of the received broadcast signal, wherein the signal strength of the broadcast signal sent by the target macro base station received by the first small base station exceeds the a threshold
  • the first small base station initiates a process of accessing the target macro base station
  • the first small base station determines the target communication system of the backhaul link as the communication standard adopted by the target macro base station.
  • the broadcast signal sent by the at least one macro base station may include a broadcast channel sent by the base station of the cellular network, and may also include a beacon frame sent by the AP in the WLAN network, but the embodiment of the present invention is not limited thereto.
  • the first small base station may detect a broadcast signal sent by the macro base station, where the detected broadcast signal may be from at least one macro base station around the first small base station; and the first small base station pair detects The measured signal strength of the broadcast signal is measured; if the measurement result indicates that the signal strength of the broadcast signal detected by the first small base station exceeds a first threshold, that is, the signal strength of the broadcast signal when the first small base station reaches the first small base station exceeds a first threshold, And the first small base station determines, by the at least one macro base station, the macro base station that sends the broadcast signal whose signal strength exceeds the first threshold as the target macro base station, and attempts to access the target macro base station, that is, the first small base station initiates the connection.
  • the first threshold may be a preset value; if the first small base station currently establishes a Backhaul connection with a macro base station, the first threshold may also be the current and the first small base station received by the first small base station.
  • the signal strength of the broadcast signal of the macro base station having the Backhaul connection (herein referred to as the current signal strength) is either a preset value and a minimum value of the current signal strength, but the embodiment of the present invention is not limited thereto.
  • the first small base station 102 supports two communication systems of LTE and WiFi on the Backhaul link, and the macro base station 101a currently provides Backhaul service for the first small base station 102, wherein the macro base station 101a
  • the communication system adopted is WiFi. If the signal strength of the signal transmitted by the macro base station 101a received by the first small base station 102 is low or the service quality is low, the first small base station 102 can detect a broadcast signal sent by the macro base station; the first small base station The signal strength of the broadcast signal transmitted by the macro base station 101b exceeds the signal strength of the signal sent by the macro base station 101a received by the first small base station 102, and the first small base station 102 successfully accesses the macro base station 101b.
  • the first small base station 102 switches from the macro base station 101a to the macro base station 101b, and And the Backhaul link established between the first small base station 102 and the macro base station 101b, the first small base station determines the communication system (ie, LTE) adopted by the macro base station 101b as the target communication system on the Backhaul link. And the LTE system is used to communicate with the macro base station 101b on the established Backhaul, but the embodiment of the present invention is not limited thereto.
  • LTE communication system
  • the first small base station may sequentially try to access the multiple target macro base stations in a certain order, and the first small base station is used.
  • the communication system adopted by the target macro base station that is successfully accessed first is determined as the target communication system on the Backhaul link.
  • the order may be determined according to a preset number or priority of the plurality of target macro base stations, or the signal strength of the broadcast signal sent by the multiple target macro base stations received by the first small base station may be as large as The small order is not limited by the embodiment of the present invention.
  • the first small base station may also initiate an access procedure to the M target macro base stations simultaneously or sequentially. If the first small base station successfully accesses the N target macro base stations in the M target macro base stations, where 1 ⁇ N ⁇ M, and any two of the N target macro base stations adopt different In the communication system, the first small base station can aggregate the Backhaul resources of the N target macro base stations, thereby improving resource utilization and improving user experience.
  • the method 200 further includes:
  • the first small base station aggregates the backhaul resources corresponding to the plurality of communication systems respectively;
  • the first small base station communicates on the target link by using the target communication system, including:
  • the first small base station uses the aggregated backhaul resources to communicate on the backhaul link.
  • the first small base station may periodically or triggerably determine a target communication system adopted on the access link, where the trigger condition may be that the number of UEs served by the first small base station is low.
  • the signal strength of the signal sent by the first small base station that is received by the UE served by the first small base station is lower than a certain threshold, which is not limited in this embodiment of the present invention.
  • the first small base station may determine, by using a set of the access link candidate communication systems, the target communication system of the first small base station on the access link.
  • the first small base station may determine, from the access link candidate communication system set, other candidate communication systems except the communication system currently used by the first small base station on the Backhaul link as the first small a target communication system of the base station on the access link, for example, if the first small base station supports the candidate communication system on the access link as LTE and WiFi, and the first small base station is currently on the Backhaul link
  • the adopted communication system is LTE
  • the first small base station can determine that the target communication system on the access link is WiFi.
  • the first small base station may determine the access link according to a preset priority of the multiple other candidate communication systems.
  • the target communication system is determined, or the target communication system on the access link is determined according to a certain rotation order, which is not limited by the embodiment of the present invention.
  • the target link includes an access link, and correspondingly, in S210, the first small base station determines the multiple candidate communication systems supported by the first small base station on the target link.
  • the target communication system of the target link including:
  • the first small base station sends a wake-up message to multiple user equipments located in the coverage of the first small base station in each candidate communication system supported by the access link, where the wake-up message is used for Instructing the user equipment that receives the wakeup message to return a response message;
  • the first small base station determines a target communication system of the access link according to the candidate communication system corresponding to the received response message.
  • the first small base station may broadcast the wake-up message in sequence under each candidate communication system, that is, the first small base station broadcasts a wake-up message corresponding to each candidate communication system, where the wake-up message is in different candidate communication systems.
  • the format may be different, but the wake-up message sent in different candidate communication systems is used to trigger the user equipment to return a response message, that is, the wake-up message corresponding to a candidate communication system is used to trigger the user in the candidate communication system.
  • the device returns a response message, and the embodiment of the present invention is not limited thereto.
  • the candidate communication system supported by the first small base station on the access link includes LTE, WiFi, and UMTS, and the first small base station may first broadcast the wake-up message in the LTE system. For example, if the wakeup message is sent on the broadcast channel, the UE in the LTE system can receive the wakeup message, and according to the indication of the wakeup message, return a response message to the sending end of the wakeup message (ie, the first small base station). Then, the first small base station broadcasts the wake-up message in the WiFi system, for example, sending a beacon frame.
  • the UE in the WiFi system can receive the beacon frame, and according to the indication of the beacon frame, A small base station returns a response message; finally, the first small base station repeats the above procedure in the UMTS system, and determines the number of response messages received in each candidate communication system.
  • the first small base station receives the maximum number of response messages in the UMTS system, that is, the received and the UMTS If the number of response messages corresponding to the system is the largest, the first small base station can determine the UMTS system as the target communication system on the access link.
  • the first small base station may determine a candidate communication system corresponding to the response message. Specifically, the first small base station may be located according to the response message when receiving the response message.
  • the candidate communication system determines a candidate communication system corresponding to the response message, such that the first small base station can classify the received response message according to its corresponding candidate communication system to determine a response corresponding to each candidate communication system.
  • a message set, wherein the number of response messages included in the response message set corresponding to one candidate communication system may be zero, that is, there is no UE currently in the candidate communication system within the coverage of the first small base station, but
  • the embodiment of the invention is not limited thereto.
  • the first small base station may determine, according to the set of response messages corresponding to the respective candidate communication systems, a target communication system of the access link, and a response message corresponding to the target communication system.
  • the number of reply messages included in the collection is the largest.
  • the first small base station determines, according to the candidate communication system corresponding to the received response message, the target communication system of the access link, including:
  • the first small base station determines the number of response messages corresponding to the respective candidate communication systems
  • the first small base station determines the candidate communication system with the largest number of corresponding response messages in the plurality of candidate communication systems as the target communication system of the access link.
  • the first small base station determines the number of response messages corresponding to the respective candidate communication systems, for example, the first small base station counts the number of response messages received in the respective candidate communication systems, and the number of corresponding response messages
  • the most candidate communication system is determined as the target communication system of the access link, but the embodiment of the present invention is not limited thereto.
  • the awake message is further used to indicate that the UE that receives the awake message reports the signal strength of the broadcast signal sent by the first small base station that is received by the UE, and accordingly, receives the signal.
  • the UE that wakes up the message may also indicate, in the response message, the signal strength of the broadcast signal sent by the first small base station received by the UE.
  • the first small base station may also determine the target of the access link according to the number of response messages corresponding to the respective candidate communication systems and the signal strength indicated by the response message corresponding to the respective candidate communication systems. Communication link.
  • the response message is further used to indicate that the user equipment that sent the response message receives the The signal strength of the broadcast signal transmitted by the first small base station;
  • Determining, by the first small base station, the target communication system of the access link according to the candidate communication system corresponding to the received response message including:
  • the first small base station determines the number of target response messages corresponding to the respective communication systems, wherein the signal strength indicated by the target response message exceeds a second threshold;
  • the first small base station determines the candidate communication system with the largest number of corresponding target response messages in the plurality of candidate communication systems as the target communication system of the access link.
  • the first small base station may first determine response messages corresponding to the respective candidate communication systems, and further determine the number of target response messages included in the response message corresponding to the respective candidate communication systems, that is, communicate with each candidate. And determining, by the system, the signal strength of the indicated signal strength exceeding the second threshold, and determining the candidate communication system that receives the largest number of the target response messages in the plurality of candidate communication systems as the target of the access link.
  • the communication system, wherein the second threshold may be preset, which is not limited by the embodiment of the present invention.
  • the wake-up message may be used to indicate that the UE that receives the wake-up message reports capability information of the UE, for example, a communication system supported by the UE, and correspondingly, the wake-up message is received.
  • the UE may further carry capability information of the UE in the response message, where the capability information of the UE includes information of a communication system supported by the UE.
  • the first small base station can determine, according to the response message corresponding to one candidate communication system, other candidate communication systems supported by the UE that sends the response message, and when the UE receives the first small base station in the other candidate communication system.
  • the UE may not send a response message, thereby saving system resources and power consumption of the UE, but the embodiment of the present invention is not limited thereto.
  • the first small base station may perform a macro base station handover (for example, a received signal of a signal sent by a macro base station that provides Backhaul service for the first small base station in the initial access network). Determining the target communication system of the Backhaul link when the strength is lower than a certain threshold) or performing the reconfiguration of the communication system; or the first small base station may determine the access link according to the request of other small base stations or macro base stations.
  • a macro base station handover for example, a received signal of a signal sent by a macro base station that provides Backhaul service for the first small base station in the initial access network. Determining the target communication system of the Backhaul link when the strength is lower than a certain threshold) or performing the reconfiguration of the communication system; or the first small base station may determine the access link according to the request of other small base stations or macro base stations.
  • the target communication system on the Backhaul link is not limited in this embodiment of the present invention.
  • the method 200 further includes:
  • the first small base station determines to execute S210 according to the request message.
  • the request message is used to trigger the first small base station to determine a target communication system of the target link.
  • the macro base station that provides the Backhaul service for the first small base station may determine that the base station needs to be sent according to the current network status.
  • the request message for example, the signal strength of the signal sent by the macro base station received by the first small base station that is sent by the first small base station is lower than a first threshold, or the Backhaul load of the macro base station exceeds a certain threshold, and so on, This embodiment of the present invention does not limit this.
  • the request message sent by the macro base station may further indicate a target communication system of the target link, but the embodiment of the present invention is not limited thereto.
  • the second small base station may be a small base station that is in communication with the first small base station or a small base station that is in the vicinity of the first small base station, which is not limited in this embodiment of the present invention.
  • the small base station determines a target communication system of the target link from the plurality of communication systems supported by the small base station on the target link, and when the target When the communication system is different from the current communication system of the small base station on the target link, the communication system adopted on the target link is changed to the target communication system, and the target communication system is used to communicate on the target link.
  • the target communication system adopted by the small base station on the target link is more in line with the current network state, and the system performance is prevented from being affected by the pre-fixed communication system of the small base station on the target link. , thereby improving the overall performance of the system and improving the user experience.
  • FIG. 4 is a schematic block diagram of a small base station 300 according to an embodiment of the present invention. As shown in FIG. 4, the small base station 300 includes:
  • the determining module 310 is configured to determine a target communication system of the target link from the plurality of candidate communication systems supported by the small base station on the target link, where the target link includes at least one of the following links: Incoming link and backhaul link;
  • the communication module 320 is configured to: if the target communication system of the target link determined by the determining module 310 is different from the current communication system of the first small base station on the target link, change the communication standard adopted on the target link. For this target communication system, and adopt the target communication system on the target link Communicate on.
  • the small base station determines a target communication system of the target link by using a plurality of communication systems supported by the small base station on the target link, and when the target communication system is different from the small base station
  • the communication system adopted on the target link is changed to the target communication system, and the target communication system is used to communicate on the target link, so that the small base station can be
  • the target communication system adopted on the target link is more in line with the current network state, and avoids the impact on the system performance caused by the small base station adopting a pre-fixed communication system on the target link, thereby improving the overall performance of the system and improving user experience.
  • the target link includes a backhaul link
  • the determining module 310 includes:
  • the first receiving unit 311a is configured to receive a broadcast signal sent by at least one macro base station
  • the first determining unit 312a is configured to determine, according to the signal strength of the broadcast signal received by the first receiving unit 311a, the target macro base station from the at least one macro base station, where the receiving unit receives the target macro base station and sends the The signal strength of the broadcast signal exceeds a first threshold;
  • the access unit 313a is configured to initiate a process of accessing the target macro base station determined by the first determining unit 312a.
  • the second determining unit 314a is configured to determine, when the access unit 313a initiates the process of accessing the target macro base station, the target communication system of the backhaul link as the communication system adopted by the target macro base station.
  • the target link includes a backhaul link
  • the determining module 310 includes:
  • the second receiving unit 311b is configured to receive indication information of the controller, where the indication information is used to indicate a target communication system of the backhaul link, where the target communication system of the backhaul link is that the controller is based on the first Determining the current network status of the plurality of candidate macro base stations corresponding to the base station;
  • the third determining unit 312b is configured to determine a target communication system of the backhaul link according to the indication information received by the second receiving unit 311b.
  • the small base station 300 further includes:
  • the resource aggregation module 330 is configured to: if the target communication system determined by the determining module 310 includes multiple communication systems, aggregate the backhaul resources corresponding to the plurality of communication systems respectively;
  • the communication module 320 is further configured to use the backhaul resources aggregated by the resource aggregation module 330 to communicate on the backhaul link.
  • the target link includes an access link
  • the determining module 310 includes:
  • the sending unit 311c is configured to send, by using a candidate communication system of the multiple candidate communication systems supported by the access link, a wakeup message to multiple user equipments located in the coverage of the first small base station, where the wakeup message is used. Returning a response message to the user equipment indicating that the wakeup message is received;
  • the third receiving unit 312c is configured to receive a response message sent by the UE according to the wakeup message sent by the sending unit 311c.
  • the fourth determining unit 313c is configured to determine a candidate communication system corresponding to the response message received by the third receiving unit 312c, and determine the access link according to the candidate communication system corresponding to the received response message.
  • Target communication system is configured to determine a candidate communication system corresponding to the response message received by the third receiving unit 312c, and determine the access link according to the candidate communication system corresponding to the received response message.
  • the fourth determining unit 313c is specifically configured to:
  • the candidate communication system in which the number of corresponding response messages among the plurality of candidate communication systems is the largest is determined as the target communication system of the access link.
  • the response message is further used to indicate a signal strength of the broadcast signal sent by the first small base station that is received by the user equipment that sends the response message; correspondingly, the fourth determining unit 313c is specific. Used for:
  • the candidate communication system having the largest number of corresponding target response messages among the plurality of candidate communication systems is determined as the target communication system of the access link.
  • the small base station 300 further includes:
  • the receiving module 340 is configured to receive the second small base station or the current one before the determining module 310 determines the target communication system of the target link from the multiple candidate communication systems supported by the first small base station on the target link.
  • the first small base station provides request information sent by the macro base station of the backhaul service, and the request message is used to request the first small base station to change the communication standard of the target link;
  • the determining module 310 is specifically configured to: according to the request message received by the receiving module 340, determine to perform target communication for determining the target link from multiple candidate communication systems supported by the first small base station on the target link. The steps of the system.
  • the small base station 300 may correspond to a small base station in a method of communicating in a heterogeneous network according to an embodiment of the present invention, and the above-described respective modules of the small base station 300 and The operations and/or functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 1 to FIG. 3, and are not described herein again for brevity.
  • the small base station determines a target communication system of the target link by using a plurality of communication systems supported by the small base station on the target link, and when the target communication system is different from the small base station
  • the communication system adopted on the target link is changed to the target communication system, and the target communication system is used to communicate on the target link, so that the small base station can be
  • the target communication system adopted on the target link is more in line with the current network state, and avoids the impact on the system performance caused by the small base station adopting a pre-fixed communication system on the target link, thereby improving the overall performance of the system and improving user experience.
  • FIG. 10 is a schematic block diagram of a small base station 400 according to another embodiment of the present invention. As shown in FIG. 10, the small base station 400 includes:
  • the processor 410 is configured to determine a target communication system of the target link from the plurality of candidate communication systems supported by the small base station on the target link, where the target link includes at least one of the following links: Incoming link and backhaul link; and if the target communication system of the target link is different from the current communication system of the first small base station on the target link, changing the communication standard adopted on the target link to the target Communication standard
  • the transceiver 420 is configured to perform communication on the target link by using the target communication system changed by the processor 410.
  • the small base station determines a target communication system of the target link by using a plurality of communication systems supported by the small base station on the target link, and when the target communication system is different from the small base station
  • the communication system adopted on the target link is changed to the target communication system, and the target communication system is used to communicate on the target link, so that the small base station can be
  • the target communication system adopted on the target link is more in line with the current network state, and avoids the impact on the system performance caused by the small base station adopting a pre-fixed communication system on the target link, thereby improving the overall performance of the system and improving user experience.
  • the processor 410 may be a central processing unit ("CPU"), and the processor 410 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the small base station may further include a memory, which may include a read only memory and random access
  • the memory is provided with instructions and data to the processor 410.
  • a portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 410 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor 410 reads the information in the memory and completes the steps of the above method in combination with the hardware thereof. To avoid repetition, it will not be described in detail here.
  • the transceiver 420 may specifically include a receiver 421 and a transmitter 422.
  • the target link includes a backhaul link
  • the receiver 421 is configured to receive a broadcast signal sent by at least one macro base station
  • the processor 410 is further configured to determine, according to a signal strength of the broadcast signal received by the receiver 421, a target macro base station from the at least one macro base station, where the receiving unit receives the broadcast signal sent by the target macro base station.
  • the signal strength exceeds a first threshold; a process of initiating access to the target macro base station determined by the first determining unit; and if the initiated process of accessing the target macro base station is successfully completed, determining a target communication system of the backhaul link as The communication system adopted by the target macro base station.
  • the target link includes a backhaul link
  • the receiver 421 is further configured to receive indication information of the controller, where the indication information is used to indicate a target communication standard of the backhaul link.
  • the target communication system of the backhaul link is determined by the controller according to a current network state of a plurality of candidate macro base stations corresponding to the first small base station;
  • the processor 410 is further configured to determine, according to the indication information received by the receiver 421, a target communication system of the backhaul link.
  • the processor 410 is further configured to: if the target communication system includes multiple communication systems, perform aggregation on the backhaul resources corresponding to the multiple communication systems;
  • the transceiver 420 is further configured to communicate on the backhaul link by using the backhaul resources aggregated by the processor 410.
  • the target link includes an access link
  • the transmitter 422 is further configured to use each candidate communication system in multiple candidate communication systems supported by the access link.
  • the receiver 421 is further configured to receive a response message sent by the UE according to the wake-up message sent by the transmitter 422;
  • the processor 410 is further configured to determine a candidate communication system corresponding to the response message received by the receiver 421, and determine a target communication system of the access link according to the candidate communication system corresponding to the received response message. .
  • the processor 410 is specifically configured to: determine a number of response messages corresponding to the respective candidate communication systems; and maximize the number of corresponding response messages in the plurality of candidate communication systems.
  • the candidate communication system is determined as the target communication system of the access link.
  • the response message is further used to indicate a signal strength of the broadcast signal sent by the first small base station that is received by the user equipment that sends the response message; correspondingly, the processor 410 is specifically configured to: :
  • the candidate communication system having the largest number of corresponding target response messages among the plurality of candidate communication systems is determined as the target communication system of the access link.
  • the receiver 421 is further configured to determine, in the multiple candidate communication systems supported by the first small base station on the target link, the target communication system of the target link. Before receiving the request information sent by the second small base station or the macro base station that provides the backhaul service for the first small base station, the request message is used to request the first small base station to change the communication standard of the target link;
  • the processor 410 is further configured to determine, according to the request message received by the receiver 421, a target communication system of the target link from a plurality of candidate communication systems supported by the first small base station on the target link.
  • the small base station 400 may correspond to a small base station in a method of communicating in a heterogeneous network according to an embodiment of the present invention, and the above-described and other operations and/or functions of respective modules in the small base station 400 are respectively In order to implement the corresponding processes of the respective methods in FIG. 1 to FIG. 3, for brevity, details are not described herein again.
  • the small base station determines a target communication system of the target link by using a plurality of communication systems supported by the small base station on the target link, and when the target communication system is different from the small base station
  • the communication system adopted on the target link is changed to the target communication system, and the target communication system is used to enter the target link.
  • the communication can make the target communication system adopted by the small base station on the target link more in line with the current network state, and avoid the system performance caused by the small base station adopting a pre-fixed communication system on the target link. The impact of this, thereby improving overall system performance and improving the user experience.
  • association relationship describing the associated object indicates that there may be three relationships.
  • a and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
  • the character / in this paper generally indicates that the contextual object is an OR relationship.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or software. The form of the functional unit is implemented.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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

Abstract

L'invention concerne un procédé pour une communication dans un réseau hétérogène et une petite station de base. Le procédé consiste à : déterminer, par une première petite station de base, un mode de communication cible d'une liaison cible parmi une pluralité de modes de communication candidats pris en charge par la première petite station de base sur la liaison cible, la liaison cible comprenant une liaison d'accès et/ou une liaison terrestre ; et si le mode de communication cible de la liaison cible est différent d'un mode de communication courant de la première petite station de base sur la liaison cible, changer, à l'aide de la première petite station de base, le mode de communication utilisé sur la liaison cible en le mode de communication cible, et réaliser une communication sur la liaison cible à l'aide du mode de communication cible. Au moyen du procédé pour réaliser une communication dans un réseau hétérogène et la petite station de base décrit dans la présente invention, le mode de communication cible utilisé par la petite station de base sur la liaison cible est mieux conforme à un état de réseau courant, permettant ainsi d'améliorer les performances globales du système et d'améliorer l'expérience utilisateur.
PCT/CN2014/091554 2014-05-15 2014-11-19 Procédé pour une communication dans un réseau hétérogène et une petite station de base WO2015172544A1 (fr)

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Citations (4)

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CN101252757A (zh) * 2008-03-19 2008-08-27 华为技术有限公司 无线通信系统、无线通信模块和无线通信装置
CN102263711A (zh) * 2010-05-28 2011-11-30 中兴通讯股份有限公司 多模基站上行接收系统及方法
CN103209403A (zh) * 2012-01-13 2013-07-17 中兴通讯股份有限公司 用户设备能力查询、上报方法及装置
CN103313331A (zh) * 2012-03-09 2013-09-18 中兴通讯股份有限公司 制式切换方法及装置

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WO2010006649A1 (fr) * 2008-07-17 2010-01-21 Nokia Siemens Networks Oy Communications de dispositif à dispositif dans un système cellulaire
CN106060877B (zh) * 2011-10-24 2020-04-21 北京三星通信技术研究有限公司 蜂窝通信的方法及设备
CN102695242B (zh) * 2012-05-22 2015-11-25 华为技术有限公司 获取终端频段信息的方法及装置

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CN101252757A (zh) * 2008-03-19 2008-08-27 华为技术有限公司 无线通信系统、无线通信模块和无线通信装置
CN102263711A (zh) * 2010-05-28 2011-11-30 中兴通讯股份有限公司 多模基站上行接收系统及方法
CN103209403A (zh) * 2012-01-13 2013-07-17 中兴通讯股份有限公司 用户设备能力查询、上报方法及装置
CN103313331A (zh) * 2012-03-09 2013-09-18 中兴通讯股份有限公司 制式切换方法及装置

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