WO2013011439A1 - Procédé et appareil pour établir une interface intra-système - Google Patents

Procédé et appareil pour établir une interface intra-système Download PDF

Info

Publication number
WO2013011439A1
WO2013011439A1 PCT/IB2012/053600 IB2012053600W WO2013011439A1 WO 2013011439 A1 WO2013011439 A1 WO 2013011439A1 IB 2012053600 W IB2012053600 W IB 2012053600W WO 2013011439 A1 WO2013011439 A1 WO 2013011439A1
Authority
WO
WIPO (PCT)
Prior art keywords
intra
systems
message
system interface
interface
Prior art date
Application number
PCT/IB2012/053600
Other languages
English (en)
Inventor
Sami-Jukka Hakola
Timo Koskela
Samuli Turtinen
Original Assignee
Renesas Mobile Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB201112153A external-priority patent/GB2492840B/en
Priority claimed from US13/183,940 external-priority patent/US8670780B2/en
Application filed by Renesas Mobile Corporation filed Critical Renesas Mobile Corporation
Priority to DE112012002986.0T priority Critical patent/DE112012002986T5/de
Priority to CN201280034969.XA priority patent/CN103814597A/zh
Publication of WO2013011439A1 publication Critical patent/WO2013011439A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates a method and apparatus for establishing an intra- system interface, in particular between different systems within the unlicensed spectrum.
  • femtocells operating in the licensed spectrum may service local nodes and may facilitate local access to the Internet or other networks.
  • data traffic is expected to continue to increase and, as such, operators are continuing to seek other options for off-loading traffic from the core network.
  • the unlicensed spectrum also referenced as the shared spectrum
  • various shared bands have been defined within the unlicensed spectrum, examples include the industrial, scientific and medical (ISM) band and TV white spaces (TVWS).
  • ISM industrial, scientific and medical
  • TVWS TV white spaces
  • a coexistence manager is being developed pursuant to IEEE (Institute of Electrical and Electronics Engineers) 802.19.1.
  • the coexistence manager is radio access technology (RAT) independent and is generally focused on the coordination of spectrum usage among IEEE-based technologies over transmission control protocol (TCP)/Internet Protocol (IP) interfaces.
  • TCP transmission control protocol
  • IP Internet Protocol
  • the coexistence manager may serve as a relatively high level coordinator that may facilitate the negotiation between RATs regarding spectrum utilization or may govern the spectrum utilization for the shared spectrum locally.
  • a coexistence manager may operate in a relatively large time scale, that is, the reaction time of the coexistence manager to interference issues between systems is substantially greater than the time quantities of the physical layers of the systems. It may therefore be desirable to provide for smaller time scale coordination between the systems that are being coordinated by the coexistence manager.
  • LTE access points such as evolved Node Bs (eNBs)
  • eNBs evolved Node Bs
  • LTE may offer advantages for operation within the unlicensed spectrum relative to compliance with IEEE 802.11 standards.
  • LTE supports radio access network sharing as a result of its support for multi- to-multi relationships between evolved universal mobile telecommunications system (UMTS) terrestrial radio access network (E-UTRAN) nodes and evolved packet core (EPC) nodes.
  • UMTS evolved universal mobile telecommunications system
  • E-UTRAN terrestrial radio access network
  • EPC evolved packet core
  • the network sharing architecture supported by LTE allows different core network operators to connect to a shared radio access network. The operators not only share the radio network elements, but may also share the radio resources themselves. In addition to the shared radio access network, the operators may optionally have additional dedicated radio access networks, such as a second generation (2G) radio access network.
  • 2G second generation
  • a method of establishing an intra-system interface comprising: causing configuration messages to be sent to first and second systems regarding creation of an intra-system interface, wherein radio resources used by the first and second systems are in common, and wherein the first and second systems operate in an unlicensed spectrum; receiving configuration message responses from the first and second systems including address information for first and second access points of the first and second systems respectively; and causing a message to be sent to the first system to trigger the first system to initiate establishment of the intra-system interface with the second access point of the second system, wherein the message includes the address information for the second access point of the second system.
  • a method and apparatus are provided according to example embodiments of the present invention for facilitating the creation of an intra-system interface between systems operating in an unlicensed spectrum.
  • the intra-system interface may permit the systems operating within the unlicensed spectrum to use the same radio resources in a coordinated fashion.
  • a coexistence manager may facilitate the creation of an intra-system interface between first and second LTE systems that use the same radio resources within an unlicensed spectrum, such as within the TV white spaces.
  • a method in one embodiment, includes causing configuration messages to be sent to first and second systems regarding creation of an intra-system interface.
  • the first and second systems use the same radio resources. Additionally, the first and second systems operate in an unlicensed spectrum.
  • the method of this embodiment also receives configuration message responses from the first and second systems including address information for first and second access points of the first and second systems, respectively.
  • the method additionally causes a message to be sent to the first system to trigger the first system to initiate establishment of the intra- system interface with the second access point of the second system.
  • the message that triggers the first system to initiate establishment of the intra-system interface includes the address information for the second access point of the second system.
  • apparatus for establishing an intra-system interface comprising: a processing system configured to cause the apparatus at least to: cause configuration messages to be sent to first and second systems regarding creation of an intra-system interface, wherein radio resources used by said first and second systems are in common, and wherein said first and second systems operate in an unlicensed spectrum; receive configuration message responses from said first and second systems including address information for first and second access points of said first and second systems, respectively; and cause a message to be sent to a said first system to trigger the first system to initiate establishment of the intra-system interface with the second access point of a said second system, wherein the message includes the address information for the second access point of a said second system.
  • a computer program product includes at least one non-transitory computer-readable storage medium having computer-readable program instructions stored therein with the computer-readable program instructions including program instructions configured to cause configuration messages to be sent to first and second systems regarding creation of an intra-system interface.
  • the first and second systems use the same radio resources. Additionally, the first and second systems operate in an unlicensed spectrum.
  • the computer- readable program instructions of this embodiment also include program instructions configured to receive configuration message responses from the first and second systems including address information for first and second access points of the first and second systems, respectively.
  • the computer-readable program instructions additionally include program instructions configured to cause a message to be sent to the first system to trigger the first system to initiate establishment of the intra-system interface with the second access point of the second system.
  • the message that triggers the first system to initiate establishment of the intra-system interface includes the address information for the second access point of the second system.
  • an apparatus for establishing an intra-system interface includes means for causing configuration messages to be sent to first and second systems, respectively, regarding creation of an intra-system interface.
  • the first and second systems use the same radio resources. Additionally, the first and second systems operate in an unlicensed spectrum.
  • the apparatus of this embodiment also includes means for receiving configuration message responses from the first and second systems including address information for first and second access points, respectively.
  • the apparatus additionally includes means for causing a message to be sent to the first system to trigger the first system to initiate establishment of the intra-system interface with the second access point of the second system.
  • the message that triggers the first system to initiate establishment of the intra- system interface includes the address information for the second access point of the second system.
  • a method of establishing an intra-system interface comprising: receiving a configuration message regarding creation of an intra-system interface between first and second access points of first and second systems, respectively, wherein radio resources used by the first and second systems are in common, and wherein the first and second systems operate in an unlicensed spectrum; causing a configuration message response to be sent to a coexistence manager including address information for the first access point of the first system; and receiving a message to trigger establishment of the intra-system interface, wherein the message includes the address information for the second access point of the second system.
  • apparatus for establishing an intra-system interface comprising: a processing system configured to cause the apparatus at least to: receive a configuration message regarding creation of an intra-system interface between first and second access points of first and second systems, respectively, wherein radio resources used by the first and second systems are in common, and wherein the first and second systems operate in an unlicensed spectrum; cause a configuration message response to be sent to a coexistence manager including address information for the first access point of the first system; and receive a message to trigger establishment of the intra-system interface, wherein the message includes the address information for the second access point of the second system.
  • a computer program product includes at least one non-transitory computer-readable storage medium having computer-readable program instructions stored therein with the computer-readable program instructions including program instructions configured to receive a configuration message regarding creation of an intra-system interface between first and second access points of first and second systems, respectively.
  • the first and second systems use the same radio resources. Additionally, the first and second systems operate in an unlicensed spectrum.
  • the computer-readable program instructions of this embodiment also include program instructions configured to cause a configuration message response to be sent to a coexistence manager including address information for the first access point of the first system.
  • the computer- readable program instructions of this embodiment additionally include program instructions configured to receive a message to trigger establishment of the intra- system interface.
  • an apparatus that includes means for receiving a configuration message regarding creation of an intra-system interface between first and second access points of first and second systems, respectively.
  • the first and second systems use the same radio resources. Additionally, the first and second systems operate in an unlicensed spectrum.
  • the apparatus of this embodiment also includes means for causing a configuration message response to be sent to a coexistence manager including address information for the first access point of the first system.
  • the apparatus additionally includes means for receiving a message to trigger establishment of the intra-system interface.
  • the message that triggers establishment of the intra-system interface includes the address information for the second access point of the second system.
  • the processing systems referred to above may comprise at least one processor; and at least one memory including computer program code.
  • the computer programs mentioned above may be in the form of computer readable instructions stored a on computer readable storage medium.
  • Figure 1 shows a schematic representation of an example of a system including a coexistence manager and a plurality of access points for two or more different systems in accordance with an embodiment of the present invention
  • Figure 2 shows a block diagram of an example of an apparatus for facilitating establishment of an intra-system interface between systems operating in an unlicensed spectrum in accordance with an embodiment to the present invention
  • Figure 3 shows a flow chart illustrating an example of operations performed from the perspective of the coexistence manager in accordance with one embodiment of the present invention
  • Figure 4 shows an example of a signalling flow diagram in accordance with one embodiment of the present invention
  • Figure 5 shows a schematic representation of an example of a system including a coexistence manager and a plurality of access points of different systems in accordance with another embodiment of the present invention.
  • FIG. 6 shows a flow chart illustrating an example of operations performed from the perspective of a system, such as a mobility management entity (MME), in accordance with one embodiment of the present invention.
  • MME mobility management entity
  • circuitry refers to all of the following: (a) hardware-only circuit implementations (such as implementations in only analog and/or digital circuitry), and (b) combinations of circuits and software (and/or firmware), such as (as applicable): (i) a combination of processor(s) or (ii) portions of processor(s)/software (including digital signal processor(s)), software, and memory(ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions, and (c) circuits, such as a microprocessor(s) or a portion of a microprocessor(s), that require software or firmware for operation, even if the software or firmware is not physically present.
  • circuitry applies to all uses of this term in this specification, including in any claims.
  • circuitry would also cover an implementation of merely a processor (or multiple processors) or portion of a processor and its (or their) accompanying software and/or firmware.
  • circuitry would also cover, for example and if applicable to the particular claim element, a baseband integrated circuit or application specific integrated circuit for a mobile phone or a similar integrated circuit in server, a cellular network device or other network device.
  • a method and apparatus are provided for facilitating the creation of an intra- system interface to allow two or more systems, such as LTE systems, that use the same radio resources to operate in an unlicensed spectrum in a coordinated fashion.
  • the method and apparatus of example embodiments of the present invention may provide for smaller time scale coordination between the systems.
  • the method and apparatus of one embodiment may advantageously reduce the data traffic that is required to be supported by the core network within the licensed spectrum.
  • an intra-system interface may be established between LTE systems as noted above and as will be described for purposes of example, the method and apparatus of other embodiments may establish an intra-system interface to coordinate the use of radio resources within the unlicensed spectrum by other types of systems including, without limitation, systems that utilise a wired interface, Inter Access Point Protocol (IAPP) or a wireless interface using, for example, Public Action Frames on certain channels between wireless local area network (WLAN) access points.
  • IAPP Inter Access Point Protocol
  • WLAN wireless local area network
  • Figure 1 which includes a coexistence manager 10, such as described in general by IEEE 802.19.1.
  • the coexistence manager 10 operates on top of the radio access technologies (RATs) and is RAT independent.
  • the coexistence manager 10 coordinates spectrum usage, such as usage of an unlicensed spectrum, e.g. the TV white spaces, between different systems that may access or utilise the unlicensed spectrum and, indeed, may use the same radio resources.
  • RATs radio access technologies
  • the system of Figure 1 includes a plurality of access points 12, such as base stations, node Bs (NBs), evolved node Bs (eNBs) or the like.
  • the access points may be elements of different systems.
  • the access points may be eNBs that are elements of different LTE systems, such as independent LTE systems. Nonetheless, the access points may be relatively closely located such that the interference regions of the access points at least partially overlap.
  • access points may be inter-connected with one another by respective so-called X2 interfaces and with a core network by respective so-called SI interfaces.
  • the eNBs of different LTE systems may be inter-connected to each other by an X2 interface and to the evolved packet core by an SI interface.
  • the eNBs may be connected to a mobility management entity (MME) by means of an Sl-MME interface and to a serving gateway (S-GW) by an Sl-U interface.
  • MME mobility management entity
  • S-GW serving gateway
  • the X2 interface between neighbouring eNBs may be utilised to exchange signalling information, such as load or interference related information or handover related information.
  • the eNBs are not inter-connected in this manner.
  • methods and apparatus are provided in accordance with an example embodiment of the present invention in order to facilitate the establishment of an intra-system interface between access points 12 of two different systems that use the same radio resources within an unlicensed spectrum.
  • the method and apparatus may facilitate the creation of an intra-system interface between eNBs of different LTE systems that utilise the same radio resources within an unlicensed spectrum, such as within the TV white spaces.
  • the coexistence manager 10 and/or the MMEs of the different systems may each be embodied as or otherwise include an apparatus 20 as generically represented by the block diagram of Figure 2.
  • the apparatus 20 may include or otherwise be in communication with processing circuitry 22 that is configurable to perform actions in accordance with example embodiments described herein.
  • the processing circuitry may be configured to perform data processing, application execution and/or other processing and management services according to an example embodiment of the present invention.
  • the apparatus or the processing circuitry may be embodied as a chip or chip set.
  • the apparatus or the processing circuitry may comprise one or more physical packages (e.g. chips) including materials, components and/or wires on a structural assembly (e.g. a baseboard).
  • the structural assembly may provide physical strength, conservation of size, and/or limitation of electrical interaction for component circuitry included thereon.
  • the apparatus or the processing circuitry may therefore, in some cases, be configured to implement an embodiment of the present invention on a single chip or as a single "system on a chip.”
  • a chip or chipset may constitute means for performing one or more operations for providing the functionalities described herein.
  • the processing circuitry 22 may include one or more processors 24 and one or more memories 26 that may be in communication with or otherwise control a device interface 28.
  • the processing circuitry may be embodied as a circuit chip (e.g. an integrated circuit chip) configured (e.g. with hardware, software or a combination of hardware and software) to perform operations described herein.
  • the processing circuitry may be embodied as a portion of the coexistence manager and/or access points.
  • the device interface 28 may include one or more interface mechanisms for enabling communication with other devices and/or networks.
  • the device interface may enable communication with the access points 12, while in an instance in which the apparatus is embodied by an access point, the device interface may enable communication with the coexistence manager and/or other access point(s).
  • the device interface may be any means such as a device or circuitry embodied in either hardware, or a combination of hardware and software that is configured to receive and/or transmit data from/to a network and/or any other device or module in communication with the processing circuitry 22.
  • the device interface may include, for example, an antenna (or multiple antennas) and supporting hardware and/or software for enabling communications with a wireless communication network and/or a communication modem or other hardware/software for supporting communication via cable, digital subscriber line (DSL), universal serial bus (USB), Ethernet or other methods.
  • an antenna or multiple antennas
  • DSL digital subscriber line
  • USB universal serial bus
  • the memory 26 may include one or more memory devices such as, for example, volatile and/or non-volatile memory that may be either fixed or removable.
  • the memory which may be non-transitory, may be configured to store information, data, applications, instructions or the like for enabling the apparatus 20 to carry out various functions in accordance with example embodiments of the present invention.
  • the memory could be configured to buffer input data for processing by the processor 24.
  • the memory could be configured to store instructions for execution by the processor.
  • the memory may include one of a plurality of databases that may store a variety of files, contents or data sets. Among the contents of the memory, applications may be stored for execution by the processor in order to carry out the functionality associated with each respective application.
  • the memory may be in communication with the processor via a bus for passing information among components of the apparatus.
  • the processor 24 may be embodied in a number of different ways.
  • the processor may be embodied as various processing means such as one or more of a microprocessor or other processing element, a coprocessor, a controller or various other computing or processing devices including integrated circuits such as, for example, an ASIC (application specific integrated circuit), an FPGA (field programmable gate array), or the like.
  • the processor may be configured to execute instructions stored in the memory 26 or otherwise accessible to the processor.
  • the processor may represent an entity (e.g. physically embodied in circuitry, such as in the form of processing circuitry 22) capable of performing operations according to embodiments of the present invention while configured accordingly.
  • the processor when the processor is embodied as an ASIC, FPGA or the like, the processor may be specifically configured hardware for conducting the operations described herein.
  • the processor when the processor is embodied as an executor of software instructions, the instructions may specifically configure the processor to perform the operations described herein.
  • FIG. 3 and 6 flowcharts illustrating the operations performed by examples of a method, apparatus and computer program product, such as apparatus 20 of Figure 2, in accordance with one embodiment of the present invention are illustrated.
  • each block of the flowcharts, and combinations of blocks in the flowcharts may be implemented by various means, such as hardware, firmware, processor, circuitry and/or other device associated with execution of software including one or more computer program instructions.
  • one or more of the procedures described above may be embodied by computer program instructions.
  • the computer program instructions which embody the procedures described above may be stored by a memory device 26 of an apparatus employing an embodiment of the present invention and executed by a processor in the apparatus.
  • any such computer program instructions may be loaded onto a computer or other programmable apparatus (e.g. hardware) to produce a machine, such that the resulting computer or other programmable apparatus provides for implementation of the functions specified in the flowcharts' block(s).
  • These computer program instructions may also be stored in a non-transitory computer-readable storage memory that may direct a computer or other programmable apparatus to function in a particular manner, such that the instructions stored in the computer-readable storage memory produce an article of manufacture, the execution of which implements the function specified in the flowchart block(s).
  • the computer program instructions may also be loaded onto a computer or other programmable apparatus to cause a series of operations to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide operations for implementing the functions specified in the flowcharts' block(s).
  • the operations of Figures. 3 and 6 when executed, convert a computer or processing circuitry into a particular machine configured to perform an example embodiment of the present invention. Accordingly, the operations of each of Figures. 3 and 6 define an algorithm for configuring a computer or processing circuitry, e.g. processor 24, to perform an example embodiment.
  • a general purpose computer may be provided with an instance of the processor which performs the algorithm of a respective one of Figures. 3 and 6 to transform the general purpose computer into a particular machine configured to perform an example embodiment.
  • blocks of the flowcharts support combinations of means for performing the specified functions and combinations of operations for performing the specified functions. It will also be understood that one or more blocks of the flowchart, and combinations of blocks in the flowcharts, can be implemented by special purpose hardware-based computer systems which perform the specified functions, or combinations of special purpose hardware and computer instructions.
  • an apparatus 20 embodied by coexistence manager 10 or other network entity may exchange messages with two or more different systems, such as two or more LTE systems, in order to create an intra-system interface therebetween.
  • the resulting intra-system interface may permit the systems operating within the unlicensed spectrum to use the same radio resources in a coordinated fashion.
  • a coexistence manager 10 may facilitate the creation of an intra-system interface between respective access points 12 of first and second LTE systems that use the same radio resources within an unlicensed spectrum, such as within the TV white spaces, thereby potentially advantageously reducing the data traffic that is required to be supported by the core network within the licensed spectrum.
  • the apparatus 20 embodied by a coexistence manager 10 may includes means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for causing configuration messages to be sent to first and second systems regarding creation of an intra-system interface.
  • Figure 3 illustrates the exchange of messages between a coexistence manager and two different systems
  • the configuration manager may exchange messages with three or more systems in other embodiments.
  • the first and second systems may be configured to operate in an unlicensed spectrum, such as within TV white spaces.
  • the radio resources used by the first and second systems may be the same, i.e. the radio resources used by the first and second systems may be in common.
  • the usage of these same radio resources within the unlicensed spectrum by the independent systems may be coordinated, including the provision of smaller time scale coordination between the systems.
  • signals 50 and 52 of Figure 4 illustrate configuration messages requesting intra-system interface creation that are sent by the coexistence manager 10 to LTE system #1 and LTE system #2.
  • these configuration messages are independent of the radio access technology.
  • the exchange of messages between the coexistence manager and the first and second systems may be conducted between the coexistence manager and the respective MMEs of the first and second systems.
  • the first and second systems such as LTE system #1 and LTE system #2, is made in a general sense so as to include not only the first and second systems, but also more particularly to include the respective MMEs of the various systems, such as the MMEs of LTE system #1 and LTE system #2.
  • the apparatus 20 embodied by the coexistence manager 10 or other network entity may also include means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for receiving configuration message responses from the first and second systems, including address information for first and second access points 12 of the first and second systems, respectively. See operation 32 of Figure 3.
  • the address information may be provided in various manners, the address information of one embodiment is a TCP/IP address providing, for example, a port and IP address of the respective access point.
  • configuration message responses 54 and 56 including embedded address information may be provided by LTE system #1 and LTE system #2 to the coexistence manager in order to set up an intra-system interface.
  • the apparatus 20 embodied by the coexistence manager 10 or other network entity may also include means, such as the processing circuitry 22, the processor, 24, the device interface 28 or the like, for causing a message to be sent to the first system to trigger the first system to initiate establishment of the intra-system interface with the access points of the other systems, such as the second access point of the second system. See operation 34 of Figure 3.
  • the coexistence manager 10 may identify any one of the systems to initiate establishment of the intra-system interface.
  • the coexistence manager 10 identifies LTE system #1 to initiate the establishment of the intra-system interface with the access point of LTE system #2.
  • the coexistence manager 10 of the example embodiment of Figure 4 causes a configuration message 58 to be sent to LTE system #1 to trigger LTE #1 to initiate the establishment of the intra-system interface.
  • the configuration message may be RAT independent, while the intra-system interface that will be created is RAT dependent.
  • the message that is sent by the coexistence manager 10 to the first system to trigger the first system to initiate the establishment of the intra-system interface may include address information for the second access point of the second system and, in instances in which the intra-system interface is to be established with additional access points of other systems, the address information for the additional access points of the other systems.
  • the address information may be provided in various manners, such as a TCP/IP address, e.g. a port and IP address, of the respective access point(s).
  • the different systems may then communicate with one another in order to establish the intra- system interface therebetween.
  • the apparatus 20 embodied by the coexistence manager 10 or other network entity may include means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for receiving information regarding the intra-system interface established between the access points of the different systems. While any of the systems may provide the information regarding the resulting intra-system interface to the coexistence manager 10, the coexistence manager 10 may receive the information regarding the intra- system interface from the first system in one embodiment.
  • the coexistence manager 10 or other network entity may continue to exchange messages with the different systems in order to establish the intra-system interface.
  • the apparatus 20 embodied by the coexistence manager 10 or other network entity may include means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for receiving, in response to the message to trigger the first system to initiate establishment of the intra-system interface, a response from the first system including an X2 setup request. See operation 36 of Figure 3.
  • the coexistence manager 10 may receive a configuration message response 60 including an X2 setup request from LTE system #1.
  • the X2 setup request may be encapsulated within the configuration message response.
  • the configuration message response may be RAT independent.
  • X2 refers to an interface, that is, an X2 interface, between access points of different systems operating within the unlicensed spectrum including, but not limited to, an interface between eNBs of different LTE systems.
  • the apparatus 20 embodied by the coexistence manager 10 or other network entity may also includes means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for causing a message to be sent to the other systems, such as the second system, including the X2 setup request that was received from the first system to request establishment of the intra-system interface. See operation 38 of Figure 3.
  • the coexistence manager may send a configuration message 62 to LTE system #2 to request the creation of the intra-system interface with the configuration message including an X2 setup request that was received from LTE system #1.
  • the X2 setup request may be encapsulated within the configuration message.
  • the configuration message may be RAT independent, although the intra-system interface that is to be created may be RAT dependent.
  • the apparatus 20 embodied by the coexistence manager 10 or other network entity may also include means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for receiving, in response to the message to the other systems to request establishment of the intra-system interface, a response including an X2 setup response from the other systems, such as from the second system.
  • a configuration message response 64 including an X2 setup response may be received by the coexistence manager from LTE system #2.
  • the X2 setup response may be encapsulated within the configuration message response.
  • the configuration message response may be RAT independent although the intra- system interface that is to be created may be RAT dependent.
  • the apparatus embodied by the coexistence manager 10 or other network entity may also include means, such as the processing circuitry, the processor, the device interface or the like, for causing a message to be sent to the first system including the X2 setup response from the other systems, such as from the second system. See operation 42 of Figure 3.
  • the coexistence manager 10 may send a configuration message 66 to LTE system #1 that includes the X2 setup response that was received from LTE system #2.
  • This configuration message may be RAT independent, while the intra-system interface that is to be created may be RAT dependent.
  • the intra-system interface such as an X2 interface
  • the intra-system interface may be established between respective access points 12 of the different systems.
  • the intra-system interface may provide for small time scale coordination between the systems so as to coordinate usage of the same radio resources within an unlicensed spectrum, such as within TV white spaces.
  • LTE systems may include several inter-cell interference coordination (ICIC) schemes for intra-system co-existence which may provide for improved performance in comparison to co-existing with other RATs within the same geographical area.
  • ICIC inter-cell interference coordination
  • the small scale co-existence operations converge to intra-system co-existence issues instead of inter-system co-existence issues, with the intra-system co-existence issues being solved in the manner specified by each type of system, such as by ICIC schemes for LTE systems.
  • the intra-system interface that is created is an X2 interface
  • the X2 interface may established in different manners.
  • the coexistence manager 10 may establish X2 connections 14 between the access points 12 in the form of peer-to-peer (P2P) connections, such that information may be exchanged between the access points via the P2P connections.
  • controlled connections 16 may be maintained or established between the coexistence manager 10 and the access points 12 so as to maintain and manage the X2 connections, such as by tearing up and/or establishing X2 connections based upon the need.
  • the intra-system interface may be established in other manners.
  • the coexistence manager 10 may define a virtual X2 interface 72 between the access points 12 of the different systems.
  • the virtual X2 interface may be mapped to an X2 tunnel 70 maintained by the coexistence manager 10.
  • the X2 tunnel 70 may be utilised to route X2 traffic via the coexistence manager between the access points of the different systems such that it appears that a virtual X2 interface 72 exists between the access points 12 even though the traffic is actually routed via the X2 tunnel 70 maintained by the coexistence manager 10.
  • the coexistence manager 10 of this embodiment may manage and maintain the tunnel 7- between the access points 12.
  • an access point 12 may have multiple virtual X2 interfaces with the same or different access points of other systems.
  • an apparatus 20 embodied by an MME may include means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for receiving a configuration message regarding creation of a intra-system interface between the first access point of the first system and another access point of another system.
  • the apparatus embodied by the MME of this embodiment may also include means, such as a processing circuitry, the processor, the device interface or the like, for causing a configuration message response to be sent to the coexistence manager. See operation 82 of Figure 6 as well as the configuration message response 54 provided by LTE system #1 in Figure 4.
  • the configuration message response may include address information for the first access point of the first system, such as the TCP/IP address, e.g. port and IP address, of the first access point.
  • the apparatus 20 embodied by the MME of this embodiment may also include means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for receiving a message to trigger establishment of the intra-system interface.
  • the message includes the address information for the access points of the other systems, such as the address information for the second access point of the second system. See operation 84 of Figure 6 as well as the configuration message 58 provided by the coexistence manager 10 to LTE system #1 in Figure 4.
  • the first system such as the MME of the first system, may then exchange messages with the other systems, such as the MMEs of the other systems, in order to establish an intra-system interface between the respective access points.
  • the apparatus embodied by the MME may include means, such as the processing circuitry, the processor, the device interface or the like, for causing a message that provides information regarding the intra-system interface that has been established to be provided to the coexistence manager 10.
  • the apparatus 20 embodied by the MME may include means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for causing a response including an X2 setup request to be sent to the coexistence manager 10 in response to the message to trigger establishment of the intra-system interface. See operation 86 of Figure 6 and, for example, the configuration message response 60 including the X2 setup request of Figure 4.
  • the X2 setup request may be encapsulated.
  • the apparatus 20 embodied by the MME of this embodiment may also include means, such as the processing circuitry 22, the processor 24, the device interface 28 or the like, for receiving a message from the coexistence manager 10 including an X2 setup response that was previously received by the coexistence manager from the other systems, such as the MME of the second system. See operation 88 of Figure 6 as well as the configuration message response 66 including the X2 setup response from the coexistence manager in Figure 4.
  • the MME of the first system may establish an intra-system interface between the access points of the plurality of systems, such as described above in conjunction with the embodiments of Figures 1 and 5, for example.
  • an intra-system interface may be established between LTE systems as described above
  • the method and apparatus of other embodiments may establish an intra-system interface to coordinate the use of radio resources within the unlicensed spectrum by other types of systems including, without limitation, systems that utilise a wired interface, Inter Access Point Protocol (IAPP) or a wireless interface using, for example, Public Action Frames on certain channels between WLAN access points.
  • IAPP Inter Access Point Protocol
  • WLAN access points for example, Public Action Frames on certain channels between WLAN access points.

Landscapes

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

Abstract

L'invention concerne un procédé et un appareil servant à faciliter la création d'une interface système entre des systèmes fonctionnant dans un spectre sans licence, par exemple entre des points d'accès respectifs de premier et second systèmes LTE qui utilisent les mêmes ressources radio dans un spectre sans licence, par exemple à l'intérieur de l'espace blanc de télévision. Des messages de configuration peuvent être amenés à être envoyés à des premier et second systèmes (12) concernant la création d'une interface système. Des réponses aux messages de configuration comprenant des informations d'adresse pour des premier et second points d'accès des premier et second systèmes, respectivement, sont reçues. Un message est envoyé au premier système (12) afin d'amener le premier système (12) à déclencher l'établissement de l'interface système avec le second système.
PCT/IB2012/053600 2011-07-15 2012-07-13 Procédé et appareil pour établir une interface intra-système WO2013011439A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112012002986.0T DE112012002986T5 (de) 2011-07-15 2012-07-13 Verfahren und Vorrichtung zur Herstellung einer systeminternen Schnittstelle
CN201280034969.XA CN103814597A (zh) 2011-07-15 2012-07-13 用于建立系统接口的方法和装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13/183,940 2011-07-15
GB1112153.0 2011-07-15
GB201112153A GB2492840B (en) 2011-07-15 2011-07-15 Method and apparatus for establishing an intra-system interface
US13/183,940 US8670780B2 (en) 2011-07-15 2011-07-15 Method and apparatus for establishing an intra-system interface within an unlicensed spectrum

Publications (1)

Publication Number Publication Date
WO2013011439A1 true WO2013011439A1 (fr) 2013-01-24

Family

ID=46832529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/053600 WO2013011439A1 (fr) 2011-07-15 2012-07-13 Procédé et appareil pour établir une interface intra-système

Country Status (3)

Country Link
CN (1) CN103814597A (fr)
DE (1) DE112012002986T5 (fr)
WO (1) WO2013011439A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016062334A1 (fr) * 2014-10-21 2016-04-28 Nokia Solutions And Networks Oy Procédés, appareils et système de partage de spectre entre opérateurs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9907085B2 (en) * 2014-09-26 2018-02-27 Avago Technologies General Ip (Singapore) Pte. Ltd. WIFI-coordinated LAA-LTE
CN106851659B (zh) * 2015-12-04 2020-03-10 上海无线通信研究中心 一种使用非授权频段的接入点间协调方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008084305A2 (fr) * 2006-12-29 2008-07-17 Nokia Corporation Découverte automatique d'éléments de réseau dans un réseau sans fil large bande
WO2009050212A1 (fr) * 2007-10-15 2009-04-23 Nokia Siemens Networks Oy Procédé de partage de spectre

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101889462B (zh) * 2007-11-19 2016-08-24 富士通株式会社 通信系统
US9282461B2 (en) * 2008-01-28 2016-03-08 Nokia Solutions And Networks Oy Apparatus, methods, and computer program products providing improved flexible resource usage
US8559351B2 (en) * 2008-08-01 2013-10-15 Qualcomm Incorporated Dedicated reference signal design for network MIMO
CN101668277B (zh) * 2008-09-05 2012-09-05 中兴通讯股份有限公司 基站关系管理方法、装置以及管理系统

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008084305A2 (fr) * 2006-12-29 2008-07-17 Nokia Corporation Découverte automatique d'éléments de réseau dans un réseau sans fil large bande
WO2009050212A1 (fr) * 2007-10-15 2009-04-23 Nokia Siemens Networks Oy Procédé de partage de spectre

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DAMIEN LAVAUX, PAULO MARQUES, JOSEPH MWANGOKA, ALVARO GOMES, HELDER ALVES, CARLOS SILVA, EVAGORAS CHARALAMBOUS: "Initial Architecture for TVWS spectrum sharing systems", COGEU D3.2, COGNITIVE RADIO SYSTEMS FOR EFFICIENT SHARING OF TV WHITE SPACES, 17 January 2011 (2011-01-17), XP002686101 *
FILIN (NICT) S ET AL: "Full proposal ; 19-11-0049-00-0001-full-proposal", IEEE DRAFT; 19-11-0049-00-0001-FULL-PROPOSAL, IEEE-SA MENTOR, PISCATAWAY, NJ USA, vol. 802.19.1, 9 May 2011 (2011-05-09), pages 1 - 89, XP017661396 *
HYUNDUK KANG ET AL: "System description and reference model proposal ; 19-10-0113-00-0001-system-description-and-reference-model-proposal", IEEE DRAFT; 19-10-0113-00-0001-SYSTEM-DESCRIPTION-AND-REFERENCE-MODEL-PROPOSAL, IEEE-SA MENTOR, PISCATAWAY, NJ USA, vol. 802.19.1, 6 September 2010 (2010-09-06), pages 1 - 52, XP017661526 *
MIKA KASSLIN (NOKIA): "Discovery system overview ; 19-11-0061-01-0001-discovery-system-overview", IEEE DRAFT; 19-11-0061-01-0001-DISCOVERY-SYSTEM-OVERVIEW, IEEE-SA MENTOR, PISCATAWAY, NJ USA, vol. 802.19.1, no. 1, 29 June 2011 (2011-06-29), pages 1 - 10, XP017661381 *
PÃ IVI RUUSKA (NOKIA): "Neighbor setting procedures ; 19-11-0002-01-0001-neighbor-setting-procedures", IEEE DRAFT; 19-11-0002-01-0001-NEIGHBOR-SETTING-PROCEDURES, IEEE-SA MENTOR, PISCATAWAY, NJ USA, vol. 802.19.1, no. 1, 18 January 2011 (2011-01-18), pages 1 - 22, XP017661451 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016062334A1 (fr) * 2014-10-21 2016-04-28 Nokia Solutions And Networks Oy Procédés, appareils et système de partage de spectre entre opérateurs
US10356625B2 (en) 2014-10-21 2019-07-16 Nokia Solutions And Networks Oy Methods, apparatuses and system for inter-operator spectrum sharing

Also Published As

Publication number Publication date
DE112012002986T5 (de) 2014-04-30
CN103814597A (zh) 2014-05-21

Similar Documents

Publication Publication Date Title
US8670780B2 (en) Method and apparatus for establishing an intra-system interface within an unlicensed spectrum
CA3028454C (fr) Coordination de signalisation et attribution de ressources dans un reseau sans fil utilisant une technologie d'acces radio
US9674850B2 (en) Method of establishing radio bearer, access point apparatus, user equipment and system
US10085177B2 (en) Method and apparatus for offloading data
Wen et al. Wireless virtualization
US10645616B2 (en) Cloud based access network
CN103718629A (zh) 载波聚合
TW201906440A (zh) 無線通信方法和設備
WO2014012192A1 (fr) Système de réseau avec grappe locale, contrôleur central, micro station de base et macro station de base
US20230031500A1 (en) Measurement method and apparatus
WO2017114562A1 (fr) Système et procédé permettant une coopération entre une pluralité de nœuds radios dans un réseau de télécommunication
WO2013011439A1 (fr) Procédé et appareil pour établir une interface intra-système
US20220303834A1 (en) Wireless communication handovers for non-third generation partnership project (non-3gpp) access nodes
US20210160211A1 (en) Domain name system (dns) translations for co-located gateway user planes in wireless communication networks
EP4052505B1 (fr) Accès au réseau sans fil à des tranches de réseau sans fil sur un canal radio commun
US20230067943A1 (en) Wireless user equipment (ue) capability data transfer between wireless communication networks
JP2017511094A (ja) 方法、装置及びシステム
CN105848126B (zh) 一种支持多种无线网络接入的方法和装置
GB2492840A (en) Establishing an intra-system interface between different systems within the unlicensed spectrum
EP3120634B1 (fr) Procédés et appareil pour une émission de signal de découverte entre une pluralité de dispositifs
US11589295B1 (en) Network function provisioning over third generation partnership project (3GPP) links
JP6254694B2 (ja) スペクトル共用
US11882538B1 (en) Wireless user equipment (UE) registration with networking data responsive to external control
WO2022151170A1 (fr) Procédé de commande de transfert intercellulaire, procédé de commande d'admission et appareil de communication
Kahn The Future of the Enterprise Lan: The invisible LAN

Legal Events

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

Ref document number: 12758615

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 112012002986

Country of ref document: DE

Ref document number: 1120120029860

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12758615

Country of ref document: EP

Kind code of ref document: A1