WO2015127598A1 - 网络设备和一种实现数据回传的系统及方法 - Google Patents

网络设备和一种实现数据回传的系统及方法 Download PDF

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Publication number
WO2015127598A1
WO2015127598A1 PCT/CN2014/072558 CN2014072558W WO2015127598A1 WO 2015127598 A1 WO2015127598 A1 WO 2015127598A1 CN 2014072558 W CN2014072558 W CN 2014072558W WO 2015127598 A1 WO2015127598 A1 WO 2015127598A1
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WIPO (PCT)
Prior art keywords
network device
backhaul
information
reference signal
network
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/072558
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English (en)
French (fr)
Inventor
田春长
伍勇
冯心睿
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP18186247.5A priority Critical patent/EP3484207A1/en
Priority to CN201480000948.5A priority patent/CN105103617B/zh
Priority to EP14884151.3A priority patent/EP3101950B1/en
Priority to PCT/CN2014/072558 priority patent/WO2015127598A1/zh
Priority to KR1020167026268A priority patent/KR101926001B1/ko
Publication of WO2015127598A1 publication Critical patent/WO2015127598A1/zh
Priority to US15/245,599 priority patent/US10194377B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/27Control channels or signalling for resource management between access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/29Control channels or signalling for resource management between an access point and the access point controlling device
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0632Channel quality parameters, e.g. channel quality indicator [CQI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636Feedback format
    • H04B7/0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection

Definitions

  • Network device and system and method for realizing data backhaul
  • the present invention relates to the field of communications technologies, and in particular, to a network device and a system and method for implementing data backhaul.
  • LTE Long Term Evolution
  • LTE-advanced, tube called LET-A Long Term Evolution Advanced
  • LET-A Long Term Evolution Advanced network evolution system
  • a homogeneous network a high-power base station with a large coverage forms a continuous coverage according to the shape of the cellular network; and in a heterogeneous network, more small station nodes are added to the base station (macro station) network coverage, Further increase the capacity of network coverage.
  • base station network coverage capacity can be improved by adding small station nodes, how to solve the data backhaul of a large number of small stations becomes one of the key problems to be solved in the heterogeneous network.
  • the LTE standard supports the relay technology.
  • the network mainly includes a donor node (Donor-eNB), a relay node (Relay-Node, a RN), and a user equipment (User Equipment, a UE).
  • the RN-end connects to the host base station. The other end is connected to the UE, and the host base station is an ordinary base station that has been connected to the core network.
  • the RN is a site that can provide radio access services for the UE.
  • the Un-interface is connected to the host base station to implement data backhaul. However, the connection between the RN and the host base station is often fixed, and only one-hop connection is supported.
  • the station STA (Station), the access point (Access Point, the AP) and the mesh are included.
  • Network node (Mesh Point, called MP).
  • the STA is equivalent to the UE in the LTE network, and the MP can connect with the neighboring MP to form a mesh network. Since the wireless mesh network of Figure 1 operates in a distributed manner, there is a lack of nodes that optimize management of the network, resulting in poor network backhaul performance. Summary of the invention
  • the embodiments of the present invention provide a network device and a system for implementing data backhaul. And the method can realize the centralized dynamic allocation of the return resources in the network, and improve the data return valley of the entire network.
  • a first aspect of the present invention provides a network device, which may include:
  • an obtaining module configured to acquire, according to the information status information, the backhaul request of the second network device, and the remaining backhaul capability information of the third network device, the backhaul that controls the second network device and the third network device to perform data backhaul Control information, where the backhaul control information includes backhaul network topology control information and physical resource allocation information;
  • a broadcast module configured to broadcast the backhaul control information to the second network device and the third network device, so that the second network device and the third network device perform data backhaul according to the backhaul control information.
  • the network device further includes: a first broadcast module, configured to broadcast a reference signal indication message to the second network device and the third network device, where the reference signal is The indication message is used to indicate that one or more of the second network device and the third network device are used to transmit a reference signal, and other network devices are used for information state information measurement.
  • a first broadcast module configured to broadcast a reference signal indication message to the second network device and the third network device, where the reference signal is The indication message is used to indicate that one or more of the second network device and the third network device are used to transmit a reference signal, and other network devices are used for information state information measurement.
  • the network device further includes:
  • a first receiving module configured to receive information state information sent by the second network device and the third network device, where the information state information is that the second network device and the third network device measure according to the reference signal indication message Obtained, the information state information includes a precoding matrix indication feedback amount PMI, a channel quality indicator CQI, and a rank Rank.
  • the foregoing network device further includes: a second acquiring module, configured to acquire the information state information by using a third-party database.
  • the network device further includes: a second receiving module, configured to receive information state information sent by the second network device and the third network device, where the information state The information is that the second network device and the third network device are measured according to a reference signal.
  • the foregoing network device further includes: a third receiving module, configured to receive a backhaul request sent by the second network device, where the backhaul request includes At least one of the size of the total amount of data transmitted, the allowed transmission delay, the priority of the backhaul service, the minimum rate that the backhaul service needs to support, and the source/destination network information of the backhaul service.
  • the foregoing network device further includes:
  • a fourth receiving module configured to receive remaining backhaul capability information sent by the third network device, where the remaining backhaul capability information includes a margin of backhaul capability, a delay size experienced by the backhaul, a buffer size, and a back At least one of a charging method, a network type of the returned transmission, and a reliability indicator of the backhaul link.
  • the backhaul network topology control information includes at least one backhaul path, the backhaul path is allocated to the second network device that sends the backhaul request; and the physical resource allocation information in the backhaul control information is included in using the backhaul.
  • the network topology control information includes a backhaul path, the corresponding physical resource that the backhaul path can utilize;
  • the broadcast module is specifically configured to send the backhaul control information to the second network device and the third network device, so that the second network device is included in the backhaul network topology control information.
  • Data transmission is performed by using the physical resource indicated by the physical resource allocation information, so that the third network device uses the backhaul control information according to the backhaul control information after receiving the backhaul control information.
  • the return capability is used for data backhaul.
  • a second aspect of the present invention provides a network device, which may include:
  • a request sending module configured to send a backhaul request to the first network device, where the backhaul request is used to request backhaul control information from the first network device, where the backhaul control information includes a backhaul network Topology control information and physical resource allocation information;
  • a first information receiving module configured to receive backhaul control information broadcast by the first network device, where the backhaul control information is that the first network device, according to the information state information, the backhaul request, and the third network device The remaining backhaul capability information sent is obtained;
  • the first data backhaul module is configured to perform data backhaul according to the backhaul control information.
  • the network device further includes: a fifth receiving module, configured to receive a reference signal indication message broadcast by the first network device, where the reference signal indication message is used Indicates to send a reference signal or to perform information status information measurement.
  • the network device when the reference signal indication message received by the fifth receiving module indicates that the reference signal is sent, the network device further includes:
  • the network device further includes:
  • a first measurement module configured to: according to the indication of the reference signal indication message, the measurement feedback amount precoding matrix indication PMI, the channel quality indicator CQI, and the rank Rank to obtain channel state information; wherein the information state information includes a feedback amount PMI, CQI And Rank;
  • a second sending module configured to send the information state information to the first network device.
  • the foregoing network device further includes: a second measurement module, configured to measure information state information according to the reference signal resource; the reference signal resource includes a common reference signal CRS and demodulation Reference signal DMRS;
  • a third sending module configured to send information state information measured by the second measurement module to the first network device.
  • the backhaul request includes a size of a total amount of data to be returned, an allowed transmission delay, a priority of a backhaul service, a minimum rate that the backhaul service needs to support, and a source/destination network of the backhaul service. At least one of the information.
  • the backhaul network topology control information includes at least one backhaul path, the backhaul path is allocated to the second network device that sends the backhaul request, and the physical resource allocation information in the backhaul control information is included in using the backhaul network
  • the topology control information includes a backhaul path, the corresponding physical resource that can be utilized by the backhaul path;
  • the first data backhaul module is specifically configured to perform data backhaul on the backhaul path included in the backhaul network topology control information by using the physical resource indicated by the physical resource allocation information.
  • a third aspect of the present invention provides a network device, which may include:
  • the backhaul capability sending module is configured to send the remaining backhaul capability information to the first network device, where the remaining backhaul capability information includes information about the backhaul capability remaining after the data backhaul is performed according to the backhaul capability;
  • a second information receiving module configured to receive the backhaul control information that is broadcast by the first network device, where the backhaul control information is a backhaul request sent by the first network device according to the information state information, the second network device, The remaining backhaul capability information is obtained, where the backhaul control information includes backhaul network topology control information and physical resource allocation information;
  • a third data backhaul module configured to perform data backhaul according to the backhaul control information.
  • the network device further includes: a sixth receiving module, configured to receive a reference signal indication message broadcast by the first network device, where the reference signal indication message is used Indicates to send a reference signal or to perform information status information measurement.
  • the network device when the reference signal indication message received by the sixth receiving module indicates that the reference signal is sent, the network device further includes:
  • a fifth sending module configured to send a reference signal according to the reference signal indication message; when the reference signal indication message received by the sixth receiving module indicates that the information state information is measured, the network device further includes:
  • a third measurement module configured to: according to the indication of the reference signal indication message, the measurement feedback amount precoding matrix indication PMI, the channel quality indicator CQI, and the rank Rank to obtain channel state information, where Information status information includes feedback quantities PMI, CQI, and Rank;
  • a sixth sending module configured to send the information state information to the first network device.
  • the foregoing network device further includes: a fourth measurement module, configured to measure information state information according to the reference signal resource; the reference signal includes a common reference signal CRS and a demodulation reference Signal DMRS;
  • a seventh sending module configured to send information state information measured by the fourth measurement module to the first network device.
  • the remaining backhaul capability information includes a margin of backhaul capability, a delay size experienced by the backhaul, a buffer size, a charging method of the backhaul, a network type of the backhaul, and a backhaul link. At least one of the reliability indicators.
  • a fourth aspect of the present invention provides a system for implementing data backhaul, which may include: a first network device, a second network device, and a third network device;
  • the first network device is configured to acquire, according to the information state information, the backhaul request of the second network device, and the remaining backhaul capability information of the third network device, the data of the second network device and the third network device to be controlled. Returning the backhaul control information; and broadcasting the backhaul control information to the second network device and the third network device, so that the second network device and the third network device perform according to the backhaul control information Data back
  • the second network device is configured to send a backhaul request to the first network device, where the backhaul request is used to request backhaul control information from the first network device; and receive the broadcast by the first network device Returning control information, and performing data back transmission according to the backhaul control information;
  • the third network device is configured to send, to the first network device, remaining backhaul capability information, where the remaining backhaul capability information includes information about a backhaul capability remaining after data back according to its own backhaul capability; Returning control information sent by the first network device, and performing data back transmission according to the backhaul control information;
  • the backhaul control information includes backhaul network topology control information and physical resource allocation information.
  • the foregoing first network device is further used to And transmitting, by the second network device and the third network device, a reference signal indication message, where the reference signal indication message is used to indicate that one or more of the second network device and the third network device are used to send the reference signal,
  • Other network devices are used for information state information measurement.
  • the foregoing first network device is further configured to receive information state information sent by the second network device and the third network device,
  • the information status information is measured by the second network device and the third network device according to the reference signal indication message;
  • the information status information includes a precoding matrix indication feedback amount PMI, a channel quality indicator CQI, and a Rank.
  • the foregoing first network device is further configured to obtain information state information by using a third-party database.
  • the foregoing first network device is further configured to receive information state information sent by the second network device and the third network device, where the information state information is The second network device and the third network device are measured according to a reference signal resource, where the reference signal resource includes a common reference signal CRS and a demodulation reference signal DMRS.
  • the first network device is further configured to receive a backhaul request sent by the second network device, where the backhaul request includes a service that needs to be sent back At least one of the total amount of data, the allowed transmission delay, the priority of the backhaul service, the minimum rate that the backhaul service needs to support, and the source/destination network information of the backhaul service.
  • the foregoing first network device is further configured to receive the remaining back sent by the third network device Transmitting capability information, where the remaining backhaul capability information includes a margin of backhaul capability, a delay size experienced by the backhaul, a buffer size, a charging method of the backhaul, a network type of the returned transmission, and a backhaul link. At least one of the reliability indicators.
  • the backhaul network topology control information in the control information includes at least one backhaul path, the backhaul path is allocated to the second network device that sends the backhaul request; and the physical resource allocation information in the backhaul control information is included in the use.
  • the backhaul path included in the network topology control information is returned, the corresponding physical resource that can be utilized by the backhaul path;
  • the second network device is specifically configured to perform data backhaul by using the physical resource indicated by the physical resource allocation information on a backhaul path included in the backhaul network topology control information.
  • a fifth aspect of the present invention provides a method for implementing data backhaul, which may include:
  • the backhaul control information includes backhaul network topology control information and physical resource allocation information;
  • the obtaining, before the acquiring, by the second network device, the third network device, the backhaul control information for performing data backhaul includes the following steps:
  • the method includes the following steps: Information state information sent by the second network device and the third network device, where the information state information is measured by the second network device and the third network device according to the reference signal indication message, where the information state information includes a precoding matrix Indicates PMI, Channel Quality Indicator CQI, and Rank Rank.
  • the obtaining, before the acquiring, by the second network device and the third network device, the backhaul control information for performing data backhaul includes the following steps:
  • the information status information is obtained through a third-party database.
  • the obtaining, by the acquiring, the backhaul control information of the second network device and the third network device to perform data backhaul includes the following steps:
  • the obtaining, by the obtaining, the control, by the second network device and the third network device, before performing the data backhaul control information includes the following steps:
  • a backhaul request includes a total amount of data that needs to be returned, a permitted transmission delay, a priority of the backhaul service, and a minimum rate that the backhaul service needs to support. And at least one of source/destination network information of the backhaul service.
  • the obtaining, by the second network device, and the third network device, performing backhaul of the data backhaul includes steps before:
  • the remaining backhaul capability information includes a margin of backhaul capability, a delay size experienced by the backhaul, a buffer size, a charging method of the backhaul, and a backhaul Passing at least one of the arriving network type and the reliability indicator of the backhaul link.
  • the backhaul control information includes at least one backhaul path, the backhaul path is allocated to the second network device that sends the backhaul request; and the physical resource allocation information in the backhaul control information is included in the use of the back And corresponding physical resources that can be utilized by the backhaul path when the backhaul path included in the network topology control information is transmitted;
  • the second network device and the third network device perform data according to the backhaul control information. Return, including:
  • the second network device performs data backhaul on the backhaul path included in the backhaul network topology control information by using the physical resource indicated by the physical resource allocation information; the third network device according to the The control information is returned, and the data backhaul is performed by using its own backhaul capability.
  • a sixth aspect of the present invention provides a method for implementing data backhaul, which may include:
  • backhaul request is used to request backhaul control information from the first network device, where the backhaul control information includes backhaul network topology control information and physical resource allocation Information
  • the receiving the backhaul control information broadcast by the first network device includes:
  • the method includes:
  • the reference signal is sent according to the reference signal indication message
  • the channel state information is obtained according to the indication of the reference signal indication message, the measurement feedback amount precoding matrix indication PMI, the channel quality indicator CQI, and the rank Rank, and Information state information measured by the first network device, where the information state information includes feedback quantities PMI, CQI, and Rank.
  • the receiving the backhaul control information broadcast by the first network device includes:
  • the backhaul request includes a size of a total amount of data to be returned, an allowed transmission delay, a priority of a backhaul service, a minimum rate that the backhaul service needs to support, and a source/destination network of the backhaul service. At least one of the information.
  • the backhaul network topology control information in the backhaul control information includes at least one backhaul path, and the backhaul path is allocated to send back The requested second network device;
  • the physical resource allocation information in the backhaul control information includes a corresponding physical resource that can be utilized by the backhaul path when using the backhaul path included in the backhaul network topology control information;
  • the data returning according to the backhaul control information includes:
  • a seventh aspect of the present invention provides a method for implementing data backhaul, which may include:
  • the remaining backhaul capability information is used to notify the first network device of the remaining backhaul capability, wherein the backhaul control information includes the backhaul network topology Control information and physical resource allocation information;
  • the receiving the backhaul control information broadcast by the first network device includes:
  • the method includes: And if the received reference signal indication message indicates that the reference signal is sent by itself, the reference signal is sent according to the reference signal indication message;
  • the channel state information is obtained according to the indication of the reference signal indication message, the measurement feedback amount precoding matrix indication PMI, the channel quality indicator CQI, and the rank Rank, and Information state information measured by the first network device, where the information state information includes feedback quantities PMI, CQI, and Rank.
  • the receiving the backhaul control information broadcast by the first network device includes:
  • the reference signal resource comprises a common reference signal CRS and a demodulation reference signal DMRS.
  • the remaining backhaul capability information includes a margin of backhaul capability, a delay size experienced by the backhaul, a buffer size, a charging method of the backhaul, a network type of the backhaul, and a backhaul link. At least one of the reliability indicators.
  • the embodiments of the present invention have the following advantages:
  • the second network device sends a backhaul request to the first network device to request the first network device to send the backhaul control information to return the data.
  • the third network device sends the remaining back to the first network device. Transmitting capability information to notify the remaining backhaul capability that the first network device can utilize; therefore, the first network device can be based on the backhaul request sent by the second network device and the remaining backhaul capability information sent by the third network device, and the network The information state information is used to obtain backhaul control information for controlling the second network device and the third network device to perform data backhaul.
  • the embodiment of the present invention can centrally manage the second network device and the third network device by using the first network device, and realize centralized allocation of the backhaul resources to the second network device and the third network device, thereby improving the entire network.
  • Data return capacity
  • FIG. 2 is a schematic structural diagram of a network device according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 3 is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 3 is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 3 is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 5-a is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 5-b is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 5 is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 6 is a schematic diagram of a basic structure of a network device according to an embodiment of the present invention
  • Figure 7-a is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • Figure 7-b is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 7-d is a schematic diagram of a basic structure of a network device according to another embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of a system for implementing data backhaul according to an embodiment of the present invention
  • b is a system layout diagram for implementing data backhaul according to an embodiment of the present invention
  • FIG. 9 is a schematic flowchart of a method for implementing data backhaul according to an embodiment of the present invention
  • FIG. 9-b is an implementation data provided by an embodiment of the present invention
  • FIG. 9 is a schematic flowchart of a method for implementing a data backhaul according to an embodiment of the present invention
  • FIG. 10 is a schematic flowchart of a method for implementing a data backhaul according to another embodiment of the present invention.
  • -b is a schematic flowchart of a method for implementing a data backhaul according to another embodiment of the present invention.
  • FIG. 10-c is a schematic flowchart of a method for implementing a data backhaul according to another embodiment of the present invention.
  • Embodiments of the present invention provide a network device and a system and method for implementing data backhaul, which are used for centrally allocating backhaul resources in a network, and improving data backhaul capacity of the entire network.
  • an embodiment of the present invention provides a network device 200, which may include:
  • the obtaining module 210 is configured to acquire, according to the information state information, the backhaul request of the second network device, and the remaining backhaul capability information of the third network device, the control of the second network device and the third network device to perform data backhaul. Transmitting control information, where the backhaul control information includes backhaul network topology control information and physical resource allocation information;
  • the broadcast module 220 is configured to broadcast the backhaul control information to the second network device and the third network device, so that the second network device and the third network device perform data backhaul according to the backhaul control information. .
  • the obtaining module 210 acquires the backhaul control information for controlling the data backhaul of the second network device and the third network device according to the information state information, the backhaul request of the second network device, and the remaining backhaul capability information of the third network device.
  • the backhaul control information includes the backhaul network topology control information and the physical resource allocation information, and the broadcast module 220 sends the obtained backhaul control information to the second network device and the third network device, and further the second network.
  • the device and the third network device can perform data backhaul according to the backhaul control information, thereby implementing centralized control of data backhaul of the second network device and the third network device, and improving the capacity of the entire backhaul network.
  • nodes In the LTE network, three types of nodes are specifically defined:
  • D-Node (Donor Node), a macro node with large coverage capability, which itself has the ability to connect to the core network;
  • An M-Node capable of implementing wireless communication with the D-Node on at least one carrier, and capable of implementing wireless communication with the neighboring M-Node on at least one carrier;
  • the MG-Node (Mesh-Gateway Node) is a functional combination node of the M-Node and the G-Node (Gateway Node).
  • the G-Node has the capability of directly transmitting back to the core network in addition to the D-Node. . Therefore, the MG-Node can be implemented not only with the D-Node on at least one carrier.
  • Wireless communication and capable of wireless communication with adjacent M-Nodes on at least one carrier, and also has the ability to directly transmit back to the core network in addition to the D-Node.
  • the coverage network of the D-Node includes at least one M-Node and at least one M-G-Node.
  • the network device 200 provided in the embodiment of the present invention is in the foregoing LTE network.
  • the D-Node, the second network device is the foregoing M-Node
  • the third network device is the foregoing MG-Node.
  • the D-Node may be a base station; the M-Node and the MG-Node may specifically be a base station, or may be A UE capable of providing access to other terminal devices or a UE having a certain backhaul capability.
  • the network device 200 may further include:
  • a first broadcast module 310 configured to broadcast, to the second network device and the third network device, a reference signal indication message, where the reference signal indication message is used to indicate one of the second network device and the third network device
  • Multiple network devices are used to transmit reference signals, while other network devices are used for information state information measurements.
  • the network device 200 is configured to perform centralized control on the second network device and the third network device, and send back control information of the control data back to the second network device and the third network device, where the backhaul control information is a network device
  • the obtaining module 210 of 200 is obtained according to the information state information sent by the second network device and the third network device, the backhaul request sent by the second network device, and the remaining backhaul capability information of the third network device.
  • the information state information in the network is dynamically changed, and the second network device and the third network device in the network are centrally controlled by the network device 200, and thus, in the network device 200, before the obtaining module 210 acquires the backhaul control information.
  • the first broadcast module 310 broadcasts a reference signal indication message to the second network device and the third network device in the network, where the reference signal indication message is specifically used to indicate one or more of the second network device and the third network device.
  • the reference signal indication message is specifically used to indicate one or more of the second network device and the third network device.
  • the other second network device and the third network device that are not used to transmit the reference signal in the reference signal indication message need to perform channel state information measurement on the corresponding resource of the reference signal indication message.
  • the foregoing reference signal may specifically include a channel status indication reference signal CSI-RS.
  • CSI-RS Cell-Specific Channel State Indication Reference Signal
  • CSI-IM Cell-Specific Channel State Indication Interference Measurement
  • the reference signal indication message After receiving the reference signal indication message broadcast by the network device 200, if the reference signal indication message indicates that the reference signal is sent by the second network device and the third network device, the reference signal indication message carries the transmission reference. a resource of the signal, then the reference signal will be sent by the resource indicated by the reference signal indication message; if the reference signal indicates that the message does not indicate the transmission of the reference signal, the feedback amount, such as a precoding matrix indication, will be indicated according to the indication of the reference signal indication message ( Precoding
  • the channel state information is measured by CQI) and Rank (Rank), and the obtained channel state information is transmitted to the network device 200.
  • the network device 200 further includes a first receiving module.
  • channel state information sent by the second network device and the third network device, where the channel state information includes feedback quantities PMI, CQI, and Rank.
  • the M-Node and the MG-Node perform channel state information measurement according to the reference signal indication message broadcasted by the network device 200, and measure the feedback quantity PMI, CQI, and Rank, and then measure
  • the channel state information includes PML CQI and Rank.
  • the second mode as shown in Figure 3-c, the network device 200 further includes:
  • the second obtaining module 330 is configured to obtain the information state information by using a third-party database.
  • the third-party database refers to the above-mentioned channel state information database obtained by measurement, feedback, and the like. For example, a database of channel state information generated by a mathematical model by known geographical location information, or a database formed by measuring with other devices and saving the measurement results.
  • the second network device and the third network device according to other reference signal resources, such as a common reference signal (Cell-Specific) Reference Signals (CRS) or demodulation reference signals (UE-Specific Reference Signals, DMRS) are measured and sent to the first network device. Therefore, as shown in FIG. 3-d, the network device 200 further includes:
  • the second receiving module 340 is configured to receive information state information sent by the second network device and the third network device, where the information state information is obtained by the second network device and the third network device according to the reference signal resource.
  • the reference signal resources include a common reference signal CRS and a demodulation reference signal DMRS.
  • the second network device does not have the capability of connecting to the core network.
  • the network device 200 is requested to allocate a backhaul resource to implement data backhaul by sending a backhaul request to the network device 200.
  • the third network device can also make a backhaul request to the network device 200 when needed. Therefore, as shown in FIG. 3-e, the network device 200 further includes:
  • the third receiving module 350 is configured to receive a backhaul request sent by the second network device, where the backhaul request includes: a size of the total data volume of the returned service, an allowed transmission delay, a priority of the backhaul service, and a backhaul At least one of the minimum backhaul rate and the source/destination network information of the backhaul service that the service needs to support.
  • the second network device can perform uplink and downlink downlink transmission. Specifically, when the second network device that sends the backhaul request is used as the uplink device, the backhaul request sent to the network device 200 may specifically be an uplink backhaul request; When the requesting second network device is used as the downlink device, the backhaul request sent to the network device 200 may specifically be a downlink backhaul request.
  • the source/destination network information of the backhaul service may specifically include a source/destination network type, a source/destination network address, and the like.
  • the network type and network address may be network types and network addresses involved in the field of communication. For example, if the second network device sends a downlink backhaul request, then
  • the source network type may be the Internet
  • the source network address may be an address of the Internet
  • the destination network type may be a telecommunication network
  • the destination network address may be a network identifier of the second network device that proposes the return request.
  • the source network type may be a telecommunication network
  • the source network address may be a network identifier of the second network device that sends the backhaul request
  • the destination network type may be the Internet
  • the network address can be an internet address.
  • the network device 200 further includes a fourth receiving module 340;
  • the fourth receiving module 360 is configured to receive remaining backhaul capability information sent by the third network device, where the remaining backhaul capability information includes a margin of the backhaul capability, a delay size experienced by the backhaul, and a buffer area. At least one of size, return charging method, network type of returning arrival, and reliability indicator of the backhaul link.
  • the margin of the backhaul capability is a data rate size that the third network device can additionally support;
  • the charging method may include free, monthly billing, or according to the flow rate;
  • the network type may include the Internet, the core of the telecom operator.
  • Network, network device 200 or other proprietary network that is to say, through the third network device, data can be returned to the Internet, the core network of the telecom operator, other network devices 200 or other proprietary networks;
  • the reliability index of the backhaul link is Refers to the probability of interruption of the return path.
  • the third network device has the capability of directly connecting to the core network for backhauling, and the network device 200 knows the remaining backhaul capability information of the third network device before the backhaul control resource is allocated, so as to be able to be based on the remaining of the third network device.
  • the backhaul capability information appropriately allocates the backhaul control resources.
  • the foregoing broadcast module is specifically configured to send the backhaul control information to the second network device and the third network device, so that the second network device is in the backhaul network topology control information.
  • the data backhaul is performed by using the physical resource indicated by the physical resource allocation information; after receiving the backhaul control information, the third network device uses the backhaul control information according to the backhaul control information.
  • the data transmission back is carried out by its own backhaul capability.
  • the backhaul control information includes backhaul network topology control information and physical resource allocation information.
  • the backhaul network topology control information mainly includes at least one backhaul path, where the backhaul path is mainly allocated by the network device 200 to the second network device that sends the backhaul request, and is used by the second network device to perform backhaul data.
  • each return path includes one or more hop connections, and each hop connection represents data transmission between two second network devices or between the second network device and the third network device aisle.
  • each return path is included in the physical resource allocation information.
  • the physical resource allocation information includes corresponding physical resources that are available for each hop connection when the data is returned on each hop connection, and the physical resource includes each hop.
  • the foregoing time domain resource is specifically a set of time slot resources in the system; the frequency domain resource is specifically carrier information and smaller granularity frequency domain resource information in the carrier, for example, a PRB set in an LTE system; the spatial domain resource may be a pre Certain precoding information in the defined codebook or selection information for a plurality of directional beams; the code domain resource may be indication information of one or more of the available orthogonal/quasi-orthogonal code sets.
  • the physical resource allocation information may also indicate a Modulation and Coding Scheme (MCS) information that is recommended to be used.
  • MCS Modulation and Coding Scheme
  • the data backhaul is performed by using the corresponding physical resource on the path to which the backhaul control information is assigned.
  • the backhaul control information is for an uplink backhaul request sent by the second network device
  • the uplink backhaul is mainly returned by the second network device to the third network device, if the backhaul control information is used.
  • the return path of the network topology control information includes multiple hops, and then the second network device returns the data to be returned back to the receiving end of the first hop, and then returns from the receiving end of the first hop to the first hop.
  • the third network device completes the backhaul through the backhaul network that it has; similarly, if the backhaul control information is for the downlink backhaul request, the downlink is assumed
  • the transmission is mainly performed by the third network device to the second network device, and the third network device according to the backhaul control information sent by the network device 200 to the second network device at the receiving end, according to the return path indicated by the backhaul control information,
  • the data is passed back to the second network device hop by hop.
  • the backhaul data can be split into multiple backhaul path transmissions, which can achieve faster return speed.
  • an embodiment of the present invention further provides a network device 400, which may include:
  • the request sending module 410 is configured to send a backhaul request to the first network device, where the backhaul request is used to request the backhaul control information to the first network device, where the backhaul control information includes a backhaul network extension Park control information and physical resource allocation information;
  • the first information receiving module 420 is configured to receive a backhaul control message broadcast by the first network device
  • the backhaul control information is obtained by the first network device according to the information state information, the backhaul request, and the remaining backhaul capability information sent by the third network device.
  • the first data backhaul module 430 is configured to perform data backhaul according to the backhaul control information.
  • the request sending module 410 of the network device 400 sends a backhaul request to the first network device to request the backhaul control information to the first network device, and then the first information receiving module 420 receives the first network device.
  • the backhaul control information of the broadcast where the backhaul control information includes the backhaul network topology control information and the physical resource allocation information, and the data backhaul module 430 performs the data according to the backhaul control information received by the first information receiving module 420. Backhaul, thereby increasing the capacity of the entire backhaul network.
  • nodes In the LTE network, three types of nodes are specifically defined:
  • the M-Node can implement wireless communication with the D-Node on at least one carrier, and can be at least with the adjacent M-Node Wireless communication on one carrier;
  • the M-G-Node is a functional combination node of the M-Node and the G-Node, and the G-Node has the capability of directly transmitting back to the core network in addition to the D-Node. Therefore, the MG-Node can not only implement wireless communication with the D-Node on at least one carrier, but also can implement wireless communication with the adjacent M-Node on at least one carrier, and also has direct connection with the core network except through the D-Node. The ability to return.
  • the coverage network of the D-Node includes at least one M-Node and at least one M-G-Node.
  • the first network device provided in the embodiment of the present invention is a D-Node in the foregoing LTE network
  • the network device 400 is the foregoing M-Node
  • the third network device is the foregoing MG-Node
  • the D-Node may be specifically
  • the M-Node and the MG-Node may be a base station, or may be a UE capable of providing access to other terminal devices or a UE having a certain backhaul capability.
  • the network device 400 provided in Figure 4 above is further described below:
  • the network device 400 performs data back transmission according to the backhaul control information sent by the first network device, and the backhaul control information is sent by the first network device according to the information state information in the network, the backhaul request sent by the network device 400, and the third network device.
  • the remaining backhaul capability information is obtained, and the information state information in the network may be measured by the network device 400 and the third network device and sent to the first network device,
  • the network device 400 measures information status information by using the following methods:
  • the network device 400 further includes:
  • the fifth receiving module 510 is configured to receive a reference signal indication message sent by the first network device, where the reference signal indication message is used to indicate to send a reference signal or perform information state information measurement.
  • the network device 400 measures the information status information, which may be performed on the premise that the first network device sends the reference signal indication message.
  • the reference signal indication message is mainly sent by the first network device, and is used to indicate that one or more of the network device 400 and the third network device are used for transmitting the reference signal, and the others are used for performing the information state information measurement.
  • the reference signal may include CSI-RS and/or CSI-IM and the like.
  • the network has network devices 400: 2A, 2B, 2C and 2D; third network device: 3A,
  • one or more of the above network device 400 and third network device can be understood as follows:
  • the network device 400 when the reference signal indication message received by the fifth receiving module 510 indicates that the network device 400 is configured to send a reference signal, the network device 400 further includes:
  • the first sending module 520 is configured to: if the reference signal is sent according to the reference signal indication message; as shown in FIG. 5-c, when the reference signal indication message received by the fifth receiving module 510 indicates that the network device 400 is used for measurement
  • the information device also includes:
  • the first measurement module 530 is configured to: if the received reference signal indication message is used to indicate that the information state information is measured, the measurement feedback amount precoding matrix indication PMI, the channel quality indicator CQI, according to the indication of the reference signal indication message Obtaining channel state information and measuring information state information to the first network device, wherein the information state information includes feedback quantities PMI, CQI, and Rank;
  • the second sending module 540 is configured to send the information state information to the first network device.
  • the network device 400 performs channel state information measurement, it is mainly broadcast according to the first network device.
  • the reference signal indication message is used for measurement. Therefore, the fifth receiving module 510 in the network device 400 is specifically configured to receive a reference signal indication message sent by the first network device, where the reference signal indication message is used to indicate to send the reference signal or perform channel status.
  • the information transmission when the reference signal indication message indicates that the network device 400 sends the reference signal, the network device 400 further includes a first sending module 520, where the first sending module 520 sends the reference signal according to the indication of the reference signal indication message;
  • the network device 400 includes a first measurement module 530, and the first measurement module 530 measures the feedback quantities PMI, CQI, and Rank according to the indication of the reference signal indication message.
  • the channel state information includes feedback quantities PMI, CQI, and Rank; then, the second sending module 540 sends the measured channel state information to the first network device.
  • the foregoing reference signal may specifically include CSI-RS and/or CSI-IM and the like.
  • the network device 400 and the third network device perform measurement according to other reference signal resources, such as CRS or DMRS, to obtain information.
  • the status information is sent to the first network device. Therefore, as shown in FIG. 5-d, the network device 400 further includes:
  • the second measurement module 550 is configured to measure information state information according to the reference signal resource; the reference signal resource includes a common reference signal CRS and a demodulation reference signal DMRS.
  • the third sending module 560 is configured to send the information status information measured by the second measurement module 550 to the first network device.
  • the first network device may be directly obtained from the database of the third-party database, which is not limited herein.
  • the network device 400 can perform uplink and downlink downlink transmission. Specifically, when the network device 400 that sends the backhaul request is used as the uplink device, the backhaul request sent to the first network device may be an uplink backhaul request. When the requested network device 400 is used as the downlink device, the backhaul request sent to the first network device may be a downlink backhaul request, where the backhaul request may include one or more of the following contents:
  • Al the total amount of data of the service that needs to be returned
  • A2 acceptable transmission delay
  • A3 the priority level of the return service
  • A5. Source/destination network information of the backhaul service.
  • the network information may include source/destination network type information and source/destination network addresses, and the network type and network address may be network types and network addresses involved in the communication field.
  • the source network type may be the Internet
  • the source network address may be the address of the Internet
  • the destination network type may be the telecommunication network
  • the destination network address may be The network identifier of the network device 400 of the request is returned.
  • the source network type may be a telecommunication network
  • the source network address may be a network identifier of the network device 400 that sends the backhaul request
  • the destination network type may be the Internet, the destination network address. It can be an internet address.
  • the remaining backhaul capability information sent by the third network device to the first network device includes one or more of the following contents:
  • the margin of the backhaul capability of B1 is the data rate size that the third network device can additionally support;
  • the charging method of B4 may include free, monthly billing or according to the flow rate;
  • the network type of B5 may include the Internet.
  • the reliability index of the backhaul link refers to the probability of interruption of the backhaul path.
  • the backhaul control information includes backhaul network topology control information and physical resource allocation information.
  • the backhaul network topology control information mainly includes at least one backhaul path, where the backhaul path is mainly allocated by the first network device to the network device 400 that sends the backhaul request, which is used by the network device 400 to perform backhaul data. Return path, where each return path contains one or more hop connections. Each hop connection represents a data transmission channel between two network devices 400, or between network device 400 and a third network device.
  • the physical resource allocation information includes the available physical resources corresponding to each of the backhaul paths. Specifically, the physical resource allocation information includes each hop when the data is returned on each hop connection.
  • the corresponding physical resource that is available for connection includes a time domain, a frequency domain, an air domain, a code domain, and the like that can be used for each hop connection.
  • the foregoing time domain resource is specifically a set of time slot resources in the system;
  • the frequency domain resource is specifically carrier information and smaller granularity frequency domain resource information in the carrier, for example, a PRB set in an LTE system;
  • the spatial domain resource may be a pre Certain precoding information in the defined codebook or selection information for a plurality of directional beams;
  • the code domain resource may be indication information of one or more of the available orthogonal/quasi-orthogonal code sets.
  • the physical resource allocation information may also indicate MCS information recommended for use. It should be noted that a plurality of the foregoing connections may be defined between the two network devices 400, and the physical resources corresponding to the multiple connections may be partially the same.
  • the data backhaul is performed by using the corresponding physical resource on the path to which the backhaul control information is allocated; specifically, if the backhaul control information is for the network device
  • An uplink backhaul request sent by 400 assuming that the uplink backhaul is mainly returned by the network device 400 to the third network device, if the backhaul path of the backhaul network topology control information in the backhaul control information includes multiple hops, then The network device 400 transmits the data to be returned back to the receiving end of the first hop, and then returns from the receiving end of the first hop to the receiving end of the second hop until the data is transmitted back to the third network device, where When the data is returned on each hop of the backhaul path, the physical resources allocated in the information may be allocated by using the physical resources.
  • the third network device completes the backhaul through the backhaul network that it has; similarly, if the backhaul control information is for the downlink backhaul request, the downlink backhaul is assumed.
  • the data is sent by the third network device to the network device 400, and the third network device hops according to the backhaul control information sent by the first network device to the receiving network device 400 according to the backhaul path indicated by the backhaul control information.
  • the data is passed back to the network device 400.
  • the backhaul data can be split into multiple backhaul path transmissions, which can achieve faster return speed.
  • the embodiment of the present invention further provides a network device 600, which may include:
  • the backhaul capability sending module 610 is configured to send the remaining backhaul capability information to the first network device, where the remaining backhaul capability information includes the remaining backhaul energy after the data backhaul is performed according to the self-backhaul capability.
  • Information of force
  • the second information receiving module 620 is configured to receive the backhaul control information that is broadcast by the first network device, where the backhaul control information is a backhaul request sent by the first network device according to the information state information and the second network device. The remaining backhaul capability information is obtained, where the backhaul control information includes backhaul network topology control information and physical resource allocation information;
  • the third data backhaul module 630 is configured to perform data backhaul according to the backhaul control information.
  • the backhaul capability sending module 610 sends the remaining backhaul capability information to the first network device, and the first network device obtains the backhaul according to the remaining backhaul capability information, the information state information, and the backhaul request sent by the second network device.
  • the third data returning module 630 performs data backhaul according to the backhaul control information, thereby improving the capacity of the backhaul network.
  • nodes In the LTE network, three types of nodes are specifically defined:
  • D-Node a macro node with large coverage capability, which itself has the ability to connect with the core network
  • the M-Node is capable of implementing wireless communication with the D-Node on at least one carrier, and is capable of implementing wireless communication with the neighboring M-Node on at least one carrier;
  • the M-G-Node is a functional combination node of the M-Node and the G-Node, and the G-Node has the capability of directly transmitting back to the core network in addition to the D-Node. Therefore, the MG-Node can not only implement wireless communication with the D-Node on at least one carrier, but also can implement wireless communication with the adjacent M-Node on at least one carrier, and also has direct connection with the core network except through the D-Node. The ability to return.
  • the coverage network of the D-Node includes at least one M-Node and at least one M-G-Node.
  • the first network device provided in the embodiment of the present invention is a D-Node in the foregoing LTE network
  • the second network device is the foregoing M-Node
  • the network device 600 is the foregoing MG-Node
  • the D-Node may be specifically
  • the M-Node and the MG-Node may be a base station, or may be a UE capable of providing access to other terminal devices or a UE having a certain backhaul capability.
  • the network device 600 provided in Figure 6 above is further described below:
  • the network device 600 performs data back transmission according to the backhaul control information sent by the first network device, and the backhaul control information is sent by the first network device according to the information state information in the network and the second network device.
  • the request and the remaining backhaul capability information sent by the network device 600 are obtained, and the information state information in the network may be measured by the second network device and the network device 600 and then sent to the first network device, specifically, the network device 600 measures Information status information can be obtained in the following ways:
  • Method 1 as shown in Figure 7-a, the foregoing network device further includes:
  • the sixth receiving module 710 is configured to receive a reference signal indication message broadcast by the first network device, where the reference signal indication message is used to indicate to send a reference signal or perform information state information measurement.
  • the network device 600 measures the information status information, which may be performed on the premise that the first network device sends the reference signal indication message.
  • the reference signal indication message is mainly sent by the first network device, and is used to indicate that one or more of the second network device and the network device 600 are used for transmitting the reference signal, and the others are used for performing the information state information measurement.
  • the foregoing reference signal may specifically include CSI-RS and/or CSI-IM and the like.
  • the network device 600 when the reference signal indication message received by the sixth receiving module 710 is used to indicate that the network device 600 is configured to send a reference signal, the network device 600 further includes:
  • the fifth sending module 720 is configured to send a reference signal according to the reference signal indication message.
  • the network device 600 when the reference signal indication message received by the sixth receiving module 710 indicates that the network device 600 performs the measurement of the information status information, the network device 600 further includes:
  • the third measurement module 730 is configured to: according to the indication of the reference signal indication message, the measurement feedback amount precoding matrix indication PMI, the channel quality indicator CQI, and the Rank to obtain channel state information, where the information state information includes the feedback amount PMI, CQI And Rank;
  • the sixth sending module 740 is configured to send the information state information to the first network device.
  • the network device 600 performs channel state information measurement, it is mainly broadcast according to the first network device.
  • the reference signal indication message is used for measurement. Therefore, the sixth receiving module 710 in the network device 600 is specifically configured to receive a reference signal indication message sent by the first network device, where the reference signal indication message is used to indicate to send the reference signal or perform channel status.
  • the network device 600 further includes a fifth sending module 720, and the fifth sending module 720 sends the reference signal according to the indication of the reference signal indication message;
  • the network device 600 includes a third measurement module 730, and the third measurement module 730 measures the feedback amount PMI, CQI, and according to the indication of the reference signal indication message.
  • the slot obtains channel state information; wherein, the channel state information includes feedback quantities PMI, CQI, and Rank; thereafter, the sixth sending module 740 transmits the measured channel state information to the first network device.
  • Manner 2 In the case that the first network device does not need to send the reference signal indication message for information state information measurement, the second network device and the network device 600 perform measurement according to other reference signal resources, such as CRS or DMRS, to obtain information. The status information is sent to the first network device. Therefore, as shown in FIG. 7-d, the network device 600 further includes:
  • a fourth measurement module 750 configured to measure information state information according to the reference signal resource;
  • the reference signal includes a common reference signal CRS and a demodulation reference signal DMRS;
  • the seventh sending module 760 is configured to send the information status information measured by the fourth measurement module 750 to the first network device.
  • the first network device may be directly obtained from the database of the third-party database, which is not limited herein.
  • the third-party database refers to the channel state information database obtained by other methods such as measurement and feedback.
  • a database of channel state information generated by a mathematical model by known geographical location information or a database formed by measuring with other devices and storing the measurement results.
  • the backhaul request sent by the foregoing second network device to the first network device may include the following A4.
  • A5. Source/destination network information of the backhaul service.
  • the source/destination network information may include source/destination network type information and source/destination network addresses, and the network type and network address may be network types and network addresses involved in the communication field.
  • the second network device can perform uplink and downlink downlink transmission. Specifically, when the second network device that sends the backhaul request is used as the uplink device, the backhaul request sent to the first network device may be an uplink backhaul request. When the second network device that sends back the request is the downlink device, the backhaul request sent to the first network device may specifically be a downlink backhaul request.
  • the source network type may be the Internet
  • the source network address may be the address of the Internet
  • the destination network type may be the telecommunication network
  • the destination network address may be A network identifier of the second network device that requests the return request, and the like.
  • the source network type may be a telecommunication network
  • the source network address may be a network identifier of the second network device that sends the backhaul request
  • the destination network type may be the Internet.
  • the network address can be an internet address.
  • the remaining backhaul capability information sent by the network device 600 to the first network device includes one or more of the following contents:
  • the network type that can be reached by the network device 600 is returned;
  • the margin of the backhaul capability of B1 is the data rate size that the network device 600 can additionally support;
  • the charging method of B4 may include free, monthly billing or according to the flow rate;
  • the network type of B5 may include the Internet,
  • the reliability index of the transmitted link refers to the probability of interruption of the return path.
  • the backhaul control information includes backhaul network topology control information and physical resource allocation.
  • the backhaul network topology control information mainly includes at least one backhaul path, where the backhaul path is mainly a second network device allocated by the first network device to send a backhaul request, and the second network device can be used for performing backhaul.
  • a return path of data wherein each backhaul path includes one or more hop connections, and each hop connection represents between two second network devices, or between the second network device and the third network device Data transmission channel.
  • the physical resource allocation information includes the available physical resources corresponding to each of the backhaul paths. Specifically, the physical resource allocation information includes each hop when the data is returned on each hop connection.
  • the corresponding physical resource that is available for connection includes a time domain, a frequency domain, an air domain, a code domain, and the like that can be used for each hop connection.
  • the foregoing time domain resource is specifically a set of time slot resources in the system;
  • the frequency domain resource is specifically carrier information and smaller granularity frequency domain resource information in the carrier, for example, a PRB set in an LTE system;
  • the spatial domain resource may be a pre Certain precoding information in the defined codebook or selection information for a plurality of directional beams;
  • the code domain resource may be indication information of one or more of the available orthogonal/quasi-orthogonal code sets.
  • the physical resource allocation information may also indicate MCS information recommended for use. It should be noted that a plurality of the foregoing connections may be defined between the two second network devices, and the physical resources corresponding to the multiple connections may be partially the same.
  • the data backhaul is performed by using the corresponding physical resource on the path to which the backhaul control information is allocated; specifically, if the backhaul control information is for the first
  • the uplink backhaul request sent by the network device is assumed to be that the uplink backhaul is mainly transmitted by the second network device to the network device 600. If the backhaul path of the backhaul network topology control information in the backhaul control information includes multiple hops Then, the second network device returns the data to be sent back to the receiving end of the first hop, and then returns from the receiving end of the first hop to the receiving end of the second hop until the data is transmitted back to the network device 600.
  • the physical resources allocated in the physical resource allocation information may be utilized when the data is returned on each hop of the return path.
  • the network device 600 completes the backhaul through the backhaul network that it has; similarly, if the backhaul control information is for the downlink backhaul request, the downlink backhaul is assumed.
  • the data is sent by the network device 600 to the second network device.
  • the network device 600 hops according to the backhaul control information sent by the first network device to the second network device at the receiving end according to the backhaul path indicated by the backhaul control information.
  • the data is passed back to the second network device.
  • the embodiment of the present invention further provides a system 800 for implementing data backhaul, which may include: the first network device 200 as shown in any one of FIG. 2 to FIG. 4 to the second network device 400 according to any one of FIG. 5-d and the third network device 600 as described in any one of FIG. 6 to FIG. 7-d;
  • the first network device 200 is configured to acquire and control the second network device 400 and the third according to the information state information, the backhaul request of the second network device 400, and the remaining backhaul capability information of the third network device 600.
  • the network device 600 performs backhaul control information of the data backhaul; and sends the backhaul control information to the second network device 400 and the third network device 600, so that the second network device 400 and the third network device 600 performing data back transmission according to the backhaul control information;
  • the second network device 400 receives the backhaul control information sent by the first network device 200, and performs data backhaul according to the backhaul control information;
  • the third network device 600 receives the backhaul control information sent by the first network device 200, and performs data backhaul according to the backhaul control information;
  • the backhaul control information includes backhaul network topology control information and physical resource allocation information.
  • the system for implementing data backhaul provided by the embodiment of the present invention mainly includes a first network device.
  • the present invention performs centralized allocation of the backhaul resources through the first network device 200, and can effectively perform centralized control. Management, improving the backhaul network capacity of the second network device 400 and the third network device 600.
  • the system for implementing data backhaul provided by the embodiment of the present invention is applied to an LTE network.
  • LTE network As shown in FIG. 6-b, three types of nodes are specifically defined in the LTE network:
  • D-Node which is a macro node with large coverage capability, has its own ability to connect with the core network
  • the M-Node is capable of implementing wireless communication with the D-Node on at least one carrier, and is capable of implementing wireless communication with the neighboring M-Node on at least one carrier;
  • the MG-Node is a functional combination node of the M-Node and the G-Node.
  • the G-Node has the capability of directly transmitting back to the core network in addition to the D-Node. Therefore, MG-Node does not It is only possible to implement wireless communication with the D-Node on at least one carrier, and to enable wireless communication with the adjacent M-Node on at least one carrier, and also has the capability of directly transmitting back to the core network in addition to the D-Node.
  • the coverage network of the D-Node includes at least one M-Node and at least one M-G-Node.
  • the first network device 200 provided in the embodiment of the present invention is the foregoing D-Node
  • the second network device 400 is the foregoing M-Node
  • the third network device 600 is the foregoing M-G-Node.
  • the D-Node may be a base station
  • the M-Node and the M-G-Node may be a base station, or may be a UE capable of providing access to other terminal devices or a UE having a certain backhaul capability.
  • the network covered by the first network device 200 includes a second network device 400 and a third network device 600, where The third network device, although specifically connected to the core network, can return data according to its own backhaul capability, but the second network device 400 and the third network device 600 are still allocated by the first network device 200 for centralized backhaul resources.
  • the corresponding backhaul resource is allocated so that the second network device 400 can perform data back transmission according to the allocated backhaul resource, and the third network device 600 performs data back using its own backhaul capability under the centralized control of the first network device 200. pass.
  • the first network device 200 centrally controls the second network device 400 and the third network device to perform data backhaul, mainly by sending back control information to the second network device 400 and the third network device 600, where the back control information is sent back.
  • the first network device 200 is obtained according to the channel state information in the network, the backhaul request of the second network device 400, and the remaining backhaul capability information of the third network device 600, and therefore, before the D-Node sends the backhaul control information.
  • the M-Node and/or the MG-Node respectively feed back the above channel state information, the backhaul request, and the remaining backhaul capability information.
  • the information state information in the network is specifically provided in three manners.
  • the information state information in the network can be obtained by other means, which is not limited herein.
  • the first network device 200 broadcasts a reference signal indication message to the second network device 400 and the third network device 600, where the reference signal indication message is used to indicate the second network device 400 and the third network device 600.
  • One or more network devices are used to transmit reference signals, while other network devices are used for information state information measurements.
  • the foregoing reference signal may specifically include a CSI-RS and/or a CSI-IM or the like. It is assumed that there are second network devices in the network: 2A, 2B, 2C and 2D; third network devices: 3A, 3B, 3C and 3D; then one or more of the above second network device and third network device can be understood For the following situations:
  • the second network device 400 and the third network device 600 indicate a message according to the received reference signal, and if the reference signal indication message is used to indicate that the reference signal is sent by itself, the second network device 400 or the third network device 600.
  • the reference signal is sent on the resource indicated by the reference signal indication message. If the reference signal indication message is used to indicate channel state information measurement, the second network device 400 or the third network device 600 is configured according to the reference signal.
  • the indication feedback feedback quantities PMI, CQI, and Rank of the indication message get channel state information. Then, the second network device or the third network device sends the measured channel state information to the first network device 200, where the channel state information includes PMI, CQI, and Rank.
  • the first network device 200 is further configured to obtain information state information by using a third-party database.
  • the third-party database refers to the channel state information database obtained by other methods such as measurement and feedback. For example, a database of channel state information generated by a mathematical model by known geographical location information, or a database formed by measuring with other devices and storing the measurement results.
  • the second network device 400 and the third network device 600 perform according to other reference signal resources, such as CRS or DMRS.
  • the information status information is measured, and then the information status information is transmitted to the first network device 200.
  • the second network device 400 does not have the capability of connecting to the core network, and when the data backhaul is performed, the first network device 200 is requested to broadcast the backhaul control information to implement the data by sending a backhaul request to the first network device 200. return.
  • the third network device may also send a backhaul request to the network device 200 when needed, which is not limited herein.
  • the second network device can perform uplink and downlink downlink transmission.
  • the backhaul request sent to the first network device may be an uplink backhaul request.
  • the backhaul request sent to the first network device may be a downlink backhaul request, where the backhaul request may include one or more of the following:
  • Al the total amount of data of the service that needs to be returned
  • A5. Source/destination network information of the backhaul service.
  • the source/destination network information may include source/destination network type information and source/destination network addresses.
  • the network type and network address may be network types and network addresses involved in the field of communication.
  • the source network type may be the Internet
  • the source network address may be an address of the Internet
  • the destination network type may be a telecommunication network
  • the destination network address may be A network identifier of the second network device that requests the return request, and the like.
  • the source network type may be a telecommunication network
  • the source network address may be a network identifier of the second network device that sends the backhaul request
  • the destination network type may be the Internet.
  • the network address can be an internet address.
  • the third network device 600 is further configured to send the remaining backhaul capability information to the first network device 200, so that the first network device 200 can perform centralized control according to the remaining backhaul capability of the third network device 600.
  • the remaining backhaul capability information sent by the third network device 600 to the first network device 200 includes one or more of the following contents:
  • the margin of the backhaul capability of B1 is the data rate size that the third network device 600 can additionally support; the charging method of B4 may include free, monthly billing or according to the flow rate; the network type of B5 may include The Internet, the core network of the telecommunications carrier, the first network device 200 or other proprietary network, that is to say through the third network device 600, can return data to the Internet, the carrier's core network, other first network devices 200 or other Dedicated network;
  • the reliability indicator of the backhaul link of B6 refers to the outage probability of the backhaul path.
  • the backhaul control information acquired by the first network device 200 according to the information state information of the network, the backhaul request sent by the second network device 400, and the remaining backhaul capability information sent by the third network device 600 includes a backhaul network.
  • the backhaul network topology control information mainly includes at least one backhaul path, where the backhaul path is mainly allocated by the first network device 200 to the second network device 400 that sends the backhaul request, which is used by the second network device 400.
  • the physical resource allocation information includes the available physical resources corresponding to each of the backhaul paths. Specifically, the physical resource allocation information includes each hop when the data is returned on each hop connection.
  • the corresponding physical resource that is available for connection, the physical resource includes a time domain, a frequency domain, an air domain, a code domain, and the like that can be used for each hop connection.
  • the foregoing time domain resource is specifically a set of time slot resources in the system;
  • the frequency domain resource is specifically carrier information and smaller granularity frequency domain resource information in the carrier, for example, a PRB set in an LTE system;
  • the spatial domain resource may be a pre Certain precoding information in the defined codebook or selection information for a plurality of directional beams;
  • the code domain resource may be indication information of one or more of the available orthogonal/quasi-orthogonal code sets.
  • the physical resource allocation information may also indicate the recommended MCS information. It should be noted that a plurality of the foregoing connections may be defined between the two second network devices 400, and the physical resources corresponding to the multiple connections may be partially the same.
  • the data backhaul is performed by using the corresponding physical resource on the path to which the backhaul control information is allocated; specifically, if the backhaul control information is for
  • the uplink backhaul request sent by the second network device is assumed to be: the uplink network back is mainly sent by the second network device to the third network device, and the backhaul path of the backhaul network topology control information is included in the backhaul control information.
  • Multi-hop then the second network device returns the data to be returned back to the first hop. The receiving end then returns from the receiving end of the first hop to the receiving end of the second hop until the data is transmitted back to the third network device, where the data can be utilized when returning data on each hop of the return path.
  • the third network device completes the backhaul through the backhaul network that it has; similarly, if the backhaul control information is for the downlink backhaul request, the downlink is assumed
  • the transmission is mainly performed by the third network device transmitting data to the second network device, and the third network device is configured according to the backhaul control information sent by the first network device to the second network device of the receiving end according to the backhaul path indicated by the backhaul control information.
  • the data is passed back to the second network device hop by hop.
  • the backhaul data can be split into multiple return path transmissions, which can achieve faster return speed.
  • the embodiment of the present invention further provides a method for implementing data backhaul. As shown in FIG. 9-a, a method for implementing data backhaul includes:
  • the backhaul control information includes backhaul network topology control information and physical resource allocation information;
  • the executor of the step S9102 is the first network device.
  • the first network device performs centralized allocation of the backhaul resources to implement centralized control, thereby improving the success rate of data backhaul. Therefore, the backhaul control information mainly includes the backhaul network topology control information and the physical resource allocation information.
  • the second network device can perform uplink and downlink downlink transmission. Specifically, when the second network device that sends the backhaul request is used as the uplink device, the backhaul request sent to the first network device may be an uplink backhaul request. When the second network device that sends back the request is the downlink device, the backhaul request sent to the first network device may specifically be a downlink backhaul request.
  • S9102 Send the backhaul control information to the second network device and the third network device, so that the second network device and the third network device perform data backhaul according to the backhaul control information.
  • the manner in which the first network device implements the centralized allocation of the returning resources is mainly by sending the backhaul control information to the second network device and the third network device, and then the second network device and the third network device are performed according to the backhaul control information. Data back.
  • the backhaul control information is sent to the second network device and the third network device by using the first network device, so that the second network device and the third network device can perform data back according to the received backhaul control information. Pass, effectively improve the success rate of data backhaul, and make full use of network resources.
  • an embodiment of the present invention further provides a method for implementing data backhaul, which may include: S9201, sending a backhaul request to a first network device, where the backhaul request is used to send the first The network device requests the backhaul control information, where the backhaul control information includes the backhaul network topology control information and the physical resource allocation information;
  • the executor of the steps S9202 and S9203 is a second network device.
  • the first network device performs centralized allocation of the backhaul resources to implement centralized control, thereby improving the success rate of data backhaul.
  • the first network device centrally allocates the backhaul resource mainly by sending back control information to the second network device and the third network device, where the backhaul control information mainly includes the backhaul network topology control information and the physical resource allocation information.
  • the second network device can perform uplink and downlink downlink transmission. Specifically, when the second network device that sends the backhaul request is used as the uplink device, the backhaul request sent to the first network device may be an uplink backhaul request. When the second network device that sends back the request is the downlink device, the backhaul request sent to the first network device may specifically be a downlink backhaul request.
  • the second network device After receiving the backhaul control information sent by the first network device, the second network device performs data backhaul according to the backhaul control information, thereby effectively performing data backhaul and improving data under centralized control of the first network device.
  • the second network device receives the backhaul control information sent by the first network device, where the backhaul control information mainly includes the backhaul network topology control information and the physical resource allocation information, so as to implement data backhaul in the network.
  • the backhaul control information mainly includes the backhaul network topology control information and the physical resource allocation information, so as to implement data backhaul in the network.
  • Centralized management after that, according to the backhaul control information for data backhaul, effectively use network resources to improve the capacity of the entire backhaul network.
  • an embodiment of the present invention further provides a method for implementing data backhaul, which may include:
  • S9301 Send remaining backhaul capability information to the first network device, where the remaining backhaul capability information For reporting the remaining backhaul capability of the first network device, where the backhaul control information includes backhaul network topology control information and physical resource allocation information;
  • the executor of the S9302 and S9303 is a second network device.
  • the first network device performs centralized allocation of the backhaul resources to implement centralized control, thereby improving the success rate of data backhaul.
  • the first network device centrally allocates the backhaul resource mainly by sending back control information to the second network device and the third network device, where the backhaul control information mainly includes the backhaul network topology control information and the physical resource allocation information.
  • the second network device can perform uplink and downlink downlink transmission. Specifically, when the second network device that sends the backhaul request is used as the uplink device, the backhaul request sent to the first network device may be an uplink backhaul request. When the second network device that sends back the request is the downlink device, the backhaul request sent to the first network device may specifically be a downlink backhaul request.
  • S9303 Perform data back according to the backhaul control information.
  • the third network device After receiving the backhaul control information sent by the first network device, the third network device performs data back transmission according to the backhaul control information, thereby effectively performing data backhaul and improving data under centralized control of the first network device.
  • the third network device receives the backhaul control information sent by the first network device, where the backhaul control information mainly includes the backhaul network topology control information and the physical resource allocation information, so as to implement data backhaul in the network.
  • the backhaul control information mainly includes the backhaul network topology control information and the physical resource allocation information, so as to implement data backhaul in the network.
  • Centralized management after that, according to the backhaul control information for data backhaul, effectively use network resources to improve the capacity of the entire backhaul network.
  • D-Node which is a macro node with large coverage capability, has its own ability to connect with the core network
  • the M-Node is capable of implementing wireless communication with the D-Node on at least one carrier, and is capable of implementing wireless communication with the neighboring M-Node on at least one carrier;
  • MG-Node (Mesh-Gateway Node) is a functional combination node of an M-Node and a G-Node (Gateway Node), wherein the G-Node has a direct and core network in addition to the D-Node.
  • the ability to return. Therefore, the MG-Node can not only implement wireless communication with the D-Node on at least one carrier, but also can implement wireless communication with the adjacent M-Node on at least one carrier, and also has direct connection with the core network except through the D-Node. The ability to return.
  • the coverage network of the D-Node includes at least one M-Node and at least one M-G-Node.
  • the first network device provided by the foregoing embodiment is the foregoing D-Node
  • the second network device is the foregoing M-Node
  • the third network device is the foregoing M-G-Node.
  • the D-Node may be a base station
  • the M-Node and the M-G-Node may be a base station, or may be a UE capable of providing access to other terminal devices or a UE having a certain backhaul capability.
  • a method for implementing data backhaul may include:
  • the D-Node broadcasts a reference signal indication message to the M-Node and the MG-Node, where the reference signal indication message is used to indicate that one or more of the M-Node and the MG-Node send the reference signal, and the other the M- Node and MG-Node perform channel state information measurement;
  • the D-Node sends a reference signal indication message to the M-Node and the MG-Node by using at least one carrier, and is used to indicate that the reference signal is sent by one or more of the foregoing M-Node and the MG-Node on a certain carrier, without using The M-Node and the MG-Node transmitting the reference signal perform channel state information measurement.
  • M-Nodes covered by the D-Node in the LTE network are: 2 A, 2B, 2C, and 2D; the MG-Nodes have: 3A, 3B, 3C, and 3D; then one or more of the above M-Nodes and MG-Nodes Specific can be understood as the following:
  • the reference signal indication message further indicates on which resources the M-Node and the MG-Node send the reference signal.
  • the reference signal may be CSI-RS, CSI-IM, or the like.
  • the 51002, the M-Node, and the M-G-Node send the information state information measured according to the reference signal indication message to the D-Node;
  • the M-Node and the MG-Node After the M-Node and the MG-Node receive the reference signal indication message broadcast by the D-Node, if the reference signal indication message indicates that the reference signal is sent by itself, the M-Node or the MG-Node will indicate according to the reference signal indication message.
  • the resource sends a reference signal; if the reference signal indicates that the message does not send the reference signal by itself, the information state information is obtained according to the reference signal indication message measuring the feedback amount of PMI and CQL Rank supported by the LTE, wherein it can be understood that the measured feedback amount It can also be other types of feedback, which is not limited herein. Therefore, the measured information status information includes PMI, CQL Rank, and the like.
  • the foregoing reference signal may specifically include CSI-RS and/or CSI-IM and the like.
  • the M-G-Node sends the remaining backhaul capability information to the D-Node.
  • the M-G-Node itself has the backhaul capability, and the M-G-Node sends the remaining backhaul capability information to the D-Node, so that the D-Node can refer to the remaining backhaul capability information of the M-G-Node when allocating the backhaul resource.
  • the M-Node is not limited to only one carrier when transmitting the remaining backhaul capability information, and may be transmitted from any of a plurality of carriers in the case where there are multiple carriers in the network.
  • the remaining backhaul capability information sent by the M-G-Node may include one or more of the following contents:
  • the margin of the backhaul capability of B1 is the data rate size that the MG-Node can additionally support;
  • the charging method of B4 may include free, monthly billing or according to the flow rate;
  • the network type of B5 may include the Internet.
  • the core network of the telecom operator, other D-Nodes or other proprietary networks, that is, the data is transmitted back to the Internet, the core network of the telecom operator, and others through the MG-Node. D-Node or other proprietary network;
  • the reliability indicator of the backhaul link of B6 refers to the outage probability of the backhaul path.
  • the M-Node sends a backhaul request to the D-Node.
  • the M-Node can implement wireless communication with the D-Node on at least one carrier, and can implement wireless communication with the adjacent M-Node on at least one carrier, but does not have the backhaul capability itself. Therefore, when the M-Node needs to perform data backhaul, the D-Node is requested to allocate the backhaul resource by sending a backhaul request to the M-Node.
  • the M-Node is not limited to only one carrier when transmitting a backhaul request, and can be transmitted from any of a plurality of carriers in the case where there are multiple carriers in the network.
  • the backhaul request sent by the M-Node may include one or more of the following contents:
  • Al the total amount of data of the service that needs to be returned
  • A5. Source/destination network information of the backhaul service.
  • the source/destination network information may include source/destination network type information and source/destination network addresses.
  • the network type and network address may be network types and network addresses involved in the field of communication.
  • the source network type may be the Internet
  • the source network address may be an address of the Internet
  • the destination network type may be a telecommunication network
  • the destination network address may be A network identifier of the second network device that requests the return request, and the like.
  • the source network type may be a telecommunication network
  • the source network address may be a network identifier of the second network device that sends the backhaul request
  • the destination network type may be the Internet.
  • the network address can be an internet address.
  • the D-Node obtains the backhaul control information according to the channel state information sent by the M-Node and the MG-Node, the backhaul request of the M-Node, and the remaining backhaul capability information of the MG-Node, where the backhaul control information is obtained. Including return network topology control information and physical resource allocation information;
  • the D-Node sends back control information to the M-Node and the MG-Node in the coverage network, where the D-Node sends the channel state information according to the M-Node and the MG-Node, and the M-Node backhaul request and The remaining backhaul capability information of the MG-Node, the backhaul control information is obtained, and the backhaul is transmitted. Control information is sent to the M-Node and the MG-Node.
  • the D-Node may transmit the backhaul control information through a physical channel such as a downlink PDCCH, a downlink PBCH, or a downlink EPDCCH.
  • a physical channel such as a downlink PDCCH, a downlink PBCH, or a downlink EPDCCH.
  • the S1007, the M-Node, and the M-G-Node perform data backhaul according to the backhaul control information.
  • the M-Node and the MG-Node covered by the D-Node perform data transmission on the network topology and carrier indicated by the backhaul network control information and the physical resource allocation information according to the backhaul control information. receive.
  • the backhaul control information includes backhaul network topology control information and physical resource allocation information.
  • the backhaul network topology control information mainly includes at least one backhaul path, where the backhaul path is mainly allocated by the D-Node to the M-Node that sends the backhaul request, and the M-Node can be used to perform backhaul data back.
  • the physical resource allocation information includes the available physical resources corresponding to each of the return paths. Specifically, the physical resource allocation information includes each hop when the data is returned on each hop connection.
  • the corresponding physical resource that is available for connection includes a time domain, a frequency domain, an air domain, a code domain, and the like that can be used for each hop connection.
  • the foregoing time domain resource is specifically a set of time slot resources in the system;
  • the frequency domain resource is specifically carrier information and smaller granularity frequency domain resource information in the carrier, for example, a PRB set in an LTE system;
  • the spatial domain resource may be a pre Certain precoding information in the defined codebook or selection information for a plurality of directional beams;
  • the code domain resource may be indication information of one or more of the available orthogonal/quasi-orthogonal code sets.
  • the physical resource allocation information may also indicate MCS information recommended for use. It should be noted that multiple connections may be defined between two M-Nodes, and physical resources corresponding to multiple connections may be partially identical.
  • the M-Node receives the backhaul control information
  • the data backhaul is performed by using the corresponding physical resource on the path to which the backhaul control information is allocated; specifically, if the backhaul control information is for the M-
  • the M-Node forwards the data to be sent back to the receiving end of the first hop, and then returns the data from the receiving end of the first hop to the receiving end of the second hop until the data is transmitted back to the MG-Node, where When the data is returned on each hop of the return path, the physical resources allocated in the physical resource allocation information can be utilized.
  • the MG-Node completes the backhaul through its own backhaul network; similarly, if the backhaul control information is for the downlink backhaul request, it is assumed that the downlink backhaul is mainly
  • the MG-Node sends data to the M-Node, and the MG-Node returns the data hop by hop according to the backhaul control information sent by the D-Node to the receiving end M-Node according to the backhaul path indicated by the backhaul control information. Pass to M-Node.
  • the backhaul data can be split into multiple return path transmissions, which can achieve faster return speed.
  • steps S1003 and S1004 may be performed before or after step S1001, and may also be performed in cross-step S1001, which is not limited herein.
  • steps S1001 and S1002 may be repeatedly performed, so that the M-Node can measure channel state information of the surrounding M-Node or MG-Node and send it to the D-Node; or the MG-Node can measure the surrounding M- The channel state information of the Node or MG-Node is sent to the D-Node.
  • steps S1001 and S1002 obtain information state information of the M-Node and the MG-Node in the overlay network for the D-Node.
  • D is not required.
  • the M-Node and the MG-Node measure information state information according to other reference signal resources, such as CRS or DMRS, and then send the information state information to D-Node.
  • a method for implementing data backhaul mainly includes:
  • S1011 The M-Node sends a backhaul request to the D-Node.
  • the M-Node is capable of wirelessly communicating with the D-Node on at least one carrier and is capable of being adjacent to
  • the M-Node implements wireless communication on at least one carrier, but does not have backhaul capability by itself. Therefore, when the M-Node needs to perform data backhaul, the D-Node is requested to allocate the backhaul resource by sending a backhaul request to the M-Node.
  • the M-Node is not limited to only one carrier when transmitting a backhaul request, and can be transmitted from any of a plurality of carriers in the case where there are multiple carriers in the network.
  • the backhaul request sent by the M-Node may include at least one or more of the following:
  • Al the total amount of data of the service that needs to be returned
  • A3 the priority level of the return service; A4. The minimum rate that the backhaul service needs to support;
  • A5. Source/destination network information of the backhaul service.
  • the source/destination network information may include source/destination network type information and source/destination network addresses.
  • the network type and network address may be network types and network addresses involved in the field of communication.
  • the source network type may be the Internet
  • the source network address may be an address of the Internet
  • the destination network type may be a telecommunication network
  • the destination network address may be A network identifier of the second network device that requests the return request, and the like.
  • the source network type may be a telecommunication network
  • the source network address may be a network identifier of the second network device that sends the backhaul request
  • the destination network type may be the Internet.
  • the network address can be an internet address.
  • the M-G-Node sends the remaining backhaul capability information to the D-Node.
  • the M-G-Node itself has the backhaul capability, and the M-G-Node sends the remaining backhaul capability information to the D-Node, so that the D-Node can refer to the remaining backhaul capability of the M-G-Node when allocating the backhaul resources.
  • the M-Node and the MG-Node measure the information state information according to the reference signal resource.
  • the M-Node and the MG-Node may be according to the network.
  • the reference signal resources such as CRS or DMRS provided in the LTE network, measure information state information in the network.
  • the M-Node and the MG-Node send the measured information state information to the D-Node; it is understood that the information state information sent by the M-Node and the MG-Node to the D-Node in the embodiment of the present invention is also mainly Including PMI, CQL Rank and other information.
  • the D-Node sends back control information to the M-Node and the M-G-Node, where the backhaul control information includes backhaul network topology control information and physical resource allocation information.
  • the D-Node obtains the backhaul control information according to the channel state information sent by the M-Node and the MG-Node, the backhaul request of the M-Node, and the remaining backhaul capability information of the MG-Node, and sends the backhaul control information to the M. -Node and MG-Node.
  • the M-Node and the M-G-Node perform data backhaul according to the backhaul control information.
  • the M-Node and the M-G-Node perform data transmission or reception on the network topology and the carrier indicated by the backhaul network topology control information and the physical resource allocation information in the backhaul control information.
  • the D-Node can also directly obtain information state information in the network, as shown in Figure 10-c.
  • a method for implementing data backhaul mainly includes:
  • S1021 The M-Node sends a backhaul request to the D-Node.
  • the M-Node is capable of wirelessly communicating with the D-Node on at least one carrier and is capable of being adjacent to
  • the M-Node implements wireless communication on at least one carrier, but does not have backhaul capability by itself. Therefore, when the M-Node needs to perform data backhaul, the D-Node is requested to allocate the backhaul resource by sending a backhaul request to the M-Node.
  • the M-Node is not limited to only one carrier when transmitting a backhaul request, and can be transmitted from multiple carriers when there are multiple carriers in the network.
  • the backhaul request sent by the M-Node may include at least one or more of the following contents: Al, a total amount of data of the service that needs to be returned;
  • A5. Source/destination network information of the backhaul service.
  • the source/destination network information may include source/destination network type information and source/destination network addresses.
  • the network type and network address may be network types and network addresses involved in the field of communication.
  • the source network type may be the Internet
  • the source network address may be an address of the Internet
  • the destination network type may be a telecommunication network
  • the destination network address may be A network identifier of the second network device that requests the return request, and the like.
  • the source network type may be a telecommunication network
  • the source network address may be a network identifier of the second network device that sends the backhaul request
  • the destination network type may be the Internet.
  • the network address can be an internet address.
  • S1022 The M-G-Node sends the remaining backhaul capability information to the D-Node.
  • the M-G-Node itself has the backhaul capability, and the M-G-Node sends the remaining backhaul capability information to the D-Node, so that the D-Node can refer to the M-G-Node backhaul capability when allocating the backhaul resources.
  • the M-Node is not limited to only one carrier when transmitting the remaining backhaul capability information, and may be transmitted from any of a plurality of carriers when there are multiple carriers in the network.
  • the remaining backhaul capability information sent by the MG-Node may include one or more of the following contents:
  • the margin of the backhaul capability of B1 is the data rate size that the MG-Node can additionally support;
  • the charging method of B4 may include free, monthly billing or according to the flow rate;
  • the network type of B5 may include the Internet.
  • the core network of the telecom operator, other D-Nodes or other proprietary networks that is to say, the data is transmitted back to the Internet, the core network of the telecom operator, other D-Nodes or other proprietary networks through the MG-Node;
  • the reliability index of the transmitted link refers to the probability of interruption of the return path.
  • the D-Node obtains the information state information from the database of the third-party database.
  • the M-Node and the M-G-Node do not need to measure the information state information, and the D-Node can be obtained from the third-party database.
  • the third party database refers to the above-mentioned channel state information database obtained by measurement, feedback, and the like. For example, a database of channel state information generated by a mathematical model by known geographical location information, or a database formed by measuring with other devices and saving the measurement results.
  • the D-Node sends back control information to the M-Node and the M-G-Node, where the backhaul control information includes backhaul network topology control information and physical resource allocation information.
  • the D-Node obtains the backhaul control information according to the channel state information sent by the M-Node and the MG-Node, the backhaul request of the M-Node, and the remaining backhaul capability information of the MG-Node, and sends the backhaul control information to the M. -Node and MG-Node.
  • the M-Node and the M-G-Node perform data backhaul according to the backhaul control information.
  • the M-Node and the M-G-Node perform data transmission or reception on the network topology and the carrier indicated by the backhaul network topology control information and the physical resource allocation information in the backhaul control information.
  • the D-Node provided by the embodiment of the present invention can obtain the channel state information of the M-Node and the MG-Node.
  • the method is within the scope of the present invention and is not limited herein.
  • an embodiment of the present invention further provides an apparatus for implementing data backhaul, which may include: a memory 1110 and at least one processor 1120 (taking one processor in FIG. 11 as an example).
  • the memory 1110 and the processor 1120 may be connected by a bus or other means, wherein FIG. 11 is exemplified by a bus connection.
  • the processor 1120 may perform the following steps:
  • the control information includes backhaul network topology control information and physical resource allocation information; and the backhaul control information is sent to the second network device and the third network device, so that the second network device and the third network device are configured according to The backhaul control information performs data backhaul.
  • the backhaul control information includes the backhaul network topology Controlling the information and the physical resource allocation information; receiving the backhaul control information broadcast by the first network device, where the backhaul control information is a backhaul request sent by the first network device according to the information state information, the second network device, The remaining backhaul capability information is obtained; and data backhaul is performed according to the backhaul control information.
  • the processor 1120 may further perform the following steps: broadcasting, by the second network device and the third network device, a reference signal indication message, where the reference signal The number indication message is used to indicate that one or more of the second network device and the third network device are used to transmit the reference signal, and the other network devices are used to measure the information status information.
  • the processor 1120 may further perform the following steps: receiving information state information sent by the second network device and the third network device, where the information state information is the second network device and The three network devices are measured according to the reference signal indication message, and the information state information includes a precoding matrix indication PMI, a channel quality indicator CQI, and a Rank.
  • the processor 1120 may further perform the following steps: acquiring the information state information by using a third-party database.
  • the processor 1120 may further perform the following steps: receiving information state information sent by the second network device and the third network device, where the information state information is the second network device and The three network devices are obtained according to reference signal resources, and the reference signal resources include a common reference signal CRS and a demodulation reference signal DMRS.
  • the processor 1120 may further perform the following steps: receiving a backhaul request sent by the second network device, where the backhaul request includes a total amount of data required to be returned, and allowed At least one of a transmission delay, a priority of the backhaul service, a minimum rate that the backhaul service needs to support, and source/destination network information of the backhaul service.
  • the processor 1120 may further perform the following steps: receiving remaining backhaul capability information sent by the third network device, where the remaining backhaul capability information includes a margin of backhaul capability, and a backhaul At least one of a delay size, a buffer size, a backhaul charging method, a network type of the returned transmission, and a reliability indicator of the backhaul link.
  • the processor 1120 may further perform the following steps: the second network device uses the physical resource allocation information on a backhaul path included in the backhaul network topology control information.
  • the indicated physical resource performs data backhaul; and the third network device uses the backhaul capability to perform data backhaul according to the backhaul control information.
  • the processor 1120 may further perform the following steps: receiving a reference signal indication message broadcast by the first network device, where the reference signal indication message is used to indicate to send a reference signal or perform information state information measurement. .
  • the processor 1120 may further perform the following steps: if the received reference signal indication message indicates that the reference signal is sent by itself, according to the parameter The test signal indication message sends a reference signal;
  • the channel state information is obtained according to the indication of the reference signal indication message, the measurement feedback amount precoding matrix indication PMI, the channel quality indicator CQI, and the Rank information, and The information state information measured by the first network device, where the information state information includes feedback quantities PMI, CQI, and Rank.
  • the processor 1120 may further perform the following steps: the second network device uses the physical resource allocation information on a backhaul path included in the backhaul network topology control information.
  • the indicated physical resource performs data backhaul; and the third network device uses the backhaul capability to perform data backhaul according to the backhaul control information.
  • the memory 1110 may be configured to store: backhaul control information, information status information, a backhaul request, and remaining backhaul capability information.
  • the memory 1110 is further configured to store: a reference signal indication message.
  • the foregoing memory 1110 is further configured to: store back network topology control information and physical resource allocation information.
  • the above memory 1110 can also be used to store: reference signal resources.
  • the medium can be a read only memory, a magnetic disk or a compact disk or the like.

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Abstract

本发明实施例提供了网络设备和一种实现数据回传的系统及方法,能够实现网络中回传资源的集中动态分配,提高整个网络的数据回传容量。该方法包括:根据信息状态信息、第二网络设备的回传请求和第三网络设备的剩余回传能力信息,获取控制所述第二网络设备和所述第三网络设备进行数据回传的回传控制信息,所述回传控制信息包括回传网络拓扑控制信息和物理资源分配信息;向所述第二网络设备和第三网络设备发送所述回传控制信息,以使得所述第二网络设备和第三网络设备根据所述回传控制信息进行数据回传。

Description

网络设备和一种实现数据回传的系统及方法 技术领域
本发明涉及通信技术领域,具体涉及网络设备和一种实现数据回传的系统 及方法。
背景技术
在第三代合作伙伴计划 ( 3rd Generation Partnership Project, 筒称 3GPP ) 长期演进( Long Term Evolution, 筒称 LTE )或高级长期演进( LTE-advanced, 筒称 LET-A ) 系统的网络演进过程中, 呈现出从同构网络向异构网络的演进。 在同构网络中,覆盖范围较大的高功率基站按照蜂窝网络形状形成连续覆盖,; 而在异构网络中, 在基站(宏站)网络覆盖基础上增加了更多小站节点, 用来 进一步提升网络覆盖的容量。在异构网络中, 虽然通过增加小站节点能够提升 基站网络覆盖容量,但是如何解决数量众多的小站的数据回传成为异构网络中 需要解决的关键问题之一。
LTE标准支持 relay技术, 网络中主要包括宿主节点 (Donor-eNB )、 中继 节点( Relay-Node, 筒称 RN )和用户设备( User Equipment, 筒称 UE ), 其中, RN—端连接宿主基站, 另一端连接 UE, 宿主基站是普通的已经连接到核心 网的基站。 RN是能够为 UE提供无线接入服务的站点, 通过 Un接口连接到 宿主基站,从而实现数据回传,但是 RN与宿主基站之间的连接经常是固定的, 只支持单跳连接。
而在 802.11 s中的无线网状网络( Wireless Mesh Network , 筒称 WMN )技 术中, 如图 1所示, 包括有站点 STA ( Station ), 接入点 ( Access Point, 筒称 AP )和网状网络节点 ( Mesh Point, 筒称 MP )。 其中, STA相当于 LTE网络 中的 UE, MP可以与邻近的 MP连接形成网状网络。 由于图 1的无线网状网 络以分布式的形式工作,缺少对网络进行优化管理的节点,导致网络的回传性 能较差。 发明内容
针对上述缺陷,本发明实施例提供了网络设备和一种实现数据回传的系统 及方法, 能够实现网络中回传资源的集中动态分配,提高整个网络的数据回传 谷里。
本发明第一方面提供了一种网络设备, 可包括:
获取模块, 用于根据信息状态信息、第二网络设备的回传请求和第三网络 设备的剩余回传能力信息,获取控制所述第二网络设备和第三网络设备进行数 据回传的回传控制信息,所述回传控制信息包括回传网络拓朴控制信息和物理 资源分配信息;
广播模块,用于向所述第二网络设备和第三网络设备广播所述回传控制信 息,以使得所述第二网络设备和第三网络设备根据所述回传控制信息进行数据 回传。
结合第一方面, 在第一种可能的实现方式中, 上述网络设备还包括: 第一广播模块,用于向所述第二网络设备和第三网络设备广播参考信号指 示消息,所述参考信号指示消息用于指示所述第二网络设备和第三网络设备中 的一个或多个网络设备用于发送参考信号,而其它网络设备用于信息状态信息 测量。
结合第一方面的第一种可能的实现方式,在第二种可能的实现方式中, 上 述网络设备还包括:
第一接收模块,用于接收所述第二网络设备和第三网络设备发送的信息状 态信息,所述信息状态信息是所述第二网络设备和第三网络设备根据所述参考 信号指示消息测量得到, 所述信息状态信息包括预编码矩阵指示反馈量 PMI、 信道质量指示 CQI和秩 Rank。
结合第一方面, 在第三种可能的实现方式中, 上述网络设备还包括: 第二获取模块, 用于通过第三方数据库获取所述信息状态信息。
结合第一方面, 在第四种可能的实现方式中, 上述网络设备还包括: 第二接收模块,用于接收所述第二网络设备和第三网络设备发送的信息状 态信息,所述信息状态信息是所述第二网络设备和第三网络设备根据参考信号 测量得到。
结合第一方面, 或第一方面的第一种可能的实现方式, 或第一方面的第二 种可能的实现方式, 或第一方面的第三种可能的实现方式, 或第一方面的第四 种可能的实现方式, 在第五种可能的实现方式中, 上述网络设备还包括: 第三接收模块, 用于接收所述第二网络设备发送的回传请求, 所述回传请 求包括需要回传的业务总数据量的大小、允许的传输延迟、 回传业务的优先等 级、 回传业务需要支持的最低速率和回传业务的源 /目的网络信息中的至少一 项。
结合第一方面, 或第一方面的第一种可能的实现方式, 或第一方面的第二 种可能的实现方式, 或第一方面的第三种可能的实现方式, 或第一方面的第四 种可能的实现方式, 或第一方面的第五种可能的实现方式,在第六种可能的实 现方式中, 上述网络设备还包括:
第四接收模块, 用于接收所述第三网络设备发送的剩余回传能力信息, 所 述剩余回传能力信息包括回传能力的余量、 回传所经受的延迟大小、緩存区大 小、 回传的计费方法、 回传到达的网络类型和回传链路的可靠性指标中的至少 一项。
结合第一方面, 或第一方面的第一种可能的实现方式, 或第一方面的第二 种可能的实现方式, 或第一方面的第三种可能的实现方式, 或第一方面的第四 种可能的实现方式, 或第一方面的第五种可能的实现方式, 或第一方面的第六 种可能的实现方式,在第七种可能的实现方式中, 所述回传控制信息中的回传 网络拓朴控制信息包括至少一条回传路径,所述回传路径分配给发送回传请求 的第二网络设备;所述回传控制信息中的物理资源分配信息包括在使用上述回 传网络拓朴控制信息所包括的回传路径时,所述回传路径可利用的对应物理资 源;
进而所述广播模块具体用于向所述第二网络设备和第三网络设备发送所 述回传控制信息,以使得所述第二网络设备在所述回传网络拓朴控制信息所包 括的回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回 传; 以使得所述第三网络设备在接收到所述回传控制信息后,根据所述回传控 制信息, 利用自身回传能力进行数据回传。
本发明第二方面提供了一种网络设备, 可包括:
请求发送模块, 用于向第一网络设备发送回传请求, 所述回传请求用于向 所述第一网络设备请求回传控制信息, 其中, 所述回传控制信息包括回传网络 拓朴控制信息和物理资源分配信息;
第一信息接收模块, 用于接收所述第一网络设备广播的回传控制信息, 所 述回传控制信息是所述第一网络设备根据信息状态信息、所述回传请求和第三 网络设备发送的剩余回传能力信息获取得到;
第一数据回传模块, 用于根据所述回传控制信息进行数据回传。
结合第二方面, 在第一种可能的实现方式中, 上述网络设备还包括: 第五接收模块, 用于接收所述第一网络设备广播的参考信号指示消息, 所 述参考信号指示消息用于指示发送参考信号或进行信息状态信息测量。
结合第二方面的第一种可能的实现方式,在第二种可能的实现方式中, 当 所述第五接收模块所接收的参考信号指示消息指示发送参考信号时,上述网络 设备还包括:
第一发送模块, 用于根据所述参考信号指示消息发送参考信号; 当所述第五接收模块所接收的参考信号指示消息指示进行信息状态信息 测量时, 所述网络设备还包括:
第一测量模块,用于根据所述参考信号指示消息的指示测量反馈量预编码 矩阵指示 PMI、 信道质量指示 CQI和秩 Rank得到信道状态信息; 其中, 所述 信息状态信息包括反馈量 PMI、 CQI和 Rank;
第二发送模块, 用于向所述第一网络设备发送所述信息状态信息。
结合第一方面, 在第三种可能的实现方式中, 上述网络设备还包括: 第二测量模块, 用于根据参考信号资源测量信息状态信息; 所述参考信号 资源包括公共参考信号 CRS和解调参考信号 DMRS;
第三发送模块,用于向所述第一网络设备发送所述第二测量模块测量得到 的信息状态信息。
结合第二方面, 或第二方面的第一种可能的实现方式, 或第二方面的第二 种可能的实现方式, 或第二方面的第三种可能的实现方式,在第四种可能的实 现方式中, 所述回传请求包括需要回传的业务总数据量的大小、允许的传输延 迟、 回传业务的优先等级、 回传业务需要支持的最低速率和回传业务的源 /目 的网络信息中的至少一项。
结合第二方面, 或第二方面的第一种可能的实现方式, 或第二方面的第二 种可能的实现方式, 或第二方面的第三种可能的实现方式, 或第二方面的第四 种可能的实现方式,在第五种可能的实现方式中, 所述回传控制信息中的回传 网络拓朴控制信息包括至少一条回传路径,所述回传路径分配给发送回传请求 的第二网络设备;所述回传控制信息中的物理资源分配信息包括在使用上述回 传网络拓朴控制信息所包括的回传路径时,所述回传路径可利用的对应物理资 源;
进而所述第一数据回传模块具体用于在所述回传网络拓朴控制信息所包 括的回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回 传。
本发明第三方面提供了一种网络设备, 可包括:
回传能力发送模块, 用于向第一网络设备发送剩余回传能力信息, 所述剩 余回传能力信息包括根据自身回传能力进行数据回传后所剩余的回传能力的 信息;
第二信息接收模块, 用于接收所述第一网络设备广播的回传控制信息, 所述回传控制信息是所述第一网络设备根据信息状态信息、第二网络设备发送 的回传请求、 所述剩余回传能力信息获取得到, 其中, 所述回传控制信息包括 回传网络拓朴控制信息和物理资源分配信息;
第三数据回传模块, 用于根据所述回传控制信息进行数据回传。
结合第三方面, 在第一种可能的实现方式中, 上述网络设备还包括: 第六接收模块, 用于接收所述第一网络设备广播的参考信号指示消息, 所 述参考信号指示消息用于指示发送参考信号或进行信息状态信息测量。
结合第三方面的第一种可能的实现方式, 在第二种可能的实现方式中, 当所述第六接收模块所接收的参考信号指示消息指示发送参考信号时,所述网 络设备还包括:
第五发送模块, 用于根据所述参考信号指示消息发送参考信号; 当所述第六接收模块所接收的参考信号指示消息指示进行信息状态信息 测量时, 所述网络设备还包括:
第三测量模块,用于根据所述参考信号指示消息的指示测量反馈量预编码 矩阵指示 PMI、 信道质量指示 CQI和秩 Rank得到信道状态信息, 其中, 所述 信息状态信息包括反馈量 PMI、 CQI和 Rank;
第六发送模块, 用于向所述第一网络设备发送所述信息状态信息。
结合第三方面, 在第三种可能的实现方式中, 上述网络设备还包括: 第四测量模块, 用于根据参考信号资源测量信息状态信息; 所述参考信号 包括公共参考信号 CRS和解调参考信号 DMRS;
第七发送模块,用于向所述第一网络设备发送所述第四测量模块测量得到 的信息状态信息。
结合第三方面, 或第三方面的第一种可能的实现方式, 或第三方面的第二 种可能的实现方式, 或第三方面的第三种可能的实现方式,在第四种可能的实 现方式中, 所述剩余回传能力信息包括回传能力的余量、 回传所经受的延迟大 小、 緩存区大小、 回传的计费方法、 回传到达的网络类型和回传链路的可靠性 指标中的至少一项。
本发明第四方面提供了一种实现数据回传的系统, 可包括: 第一网络设 备、 第二网络设备和第三网络设备;
其中, 所述第一网络设备用于根据信息状态信息、第二网络设备的回传请 求和第三网络设备的剩余回传能力信息,获取控制所述第二网络设备和第三网 络设备进行数据回传的回传控制信息;并向所述第二网络设备和第三网络设备 广播所述回传控制信息,以使得所述第二网络设备和第三网络设备根据所述回 传控制信息进行数据回传;
所述第二网络设备用于向所述第一网络设备发送回传请求,所述回传请求 用于向所述第一网络设备请求回传控制信息;接收所述第一网络设备广播的所 述回传控制信息, 并根据所述回传控制信息进行数据回传;
所述第三网络设备用于向所述第一网络设备发送剩余回传能力信息,所述 剩余回传能力信息包括根据自身回传能力进行数据回传后所剩余的回传能力 的信息;接收所述第一网络设备发送的回传控制信息, 并根据所述回传控制信 息进行数据回传;
其中, 所述回传控制信息包括回传网络拓朴控制信息和物理资源分配信 息。
结合第四方面, 在第一种可能的实现方式中, 上述第一网络设备, 还用于 向所述第二网络设备和第三网络设备广播参考信号指示消息,所述参考信号指 示消息用于指示第二网络设备和第三网络设备中的一个或多个网络设备用于 发送参考信号, 而其它网络设备用于信息状态信息测量。
结合第四方面的第一种可能的实现方式,在第二种可能的实现方式中, 上 述第一网络设备,还用于接收所述第二网络设备和第三网络设备发送的信息状 态信息,所述信息状态信息是所述第二网络设备和第三网络设备根据参考信号 指示消息测量得到; 所述信息状态信息包括预编码矩阵指示反馈量 PMI、信道 质量指示 CQI和 Rank。
结合第四方面, 在第三种可能的实现方式中, 上述第一网络设备, 还用于 通过第三方数据库获取信息状态信息。
结合第四方面, 在第四种可能的实现方式中, 上述第一网络设备, 还用于 接收所述第二网络设备和第三网络设备发送的信息状态信息,所述信息状态信 息是所述第二网络设备和第三网络设备根据参考信号资源测量得到,所述参考 信号资源包括公共参考信号 CRS和解调参考信号 DMRS。
结合第四方面, 或第四方面的第一种可能的实现方式, 或第四方面的第二 种可能的实现方式, 或第四方面的第三种可能的实现方式, 或第四方面的第四 种可能的实现方式, 在第五种可能的实现方式中, 上述第一网络设备, 还用于 接收所述第二网络设备发送的回传请求,所述回传请求包括需要回传的业务总 数据量的大小、 允许的传输延迟、 回传业务的优先等级、 回传业务需要支持的 最低速率和回传业务的源 /目的网络信息中的至少一项。
结合第四方面, 或第四方面的第一种可能的实现方式, 或第四方面的第二 种可能的实现方式, 或第四方面的第三种可能的实现方式, 或第四方面的第四 种可能的实现方式, 或第四方面的第五种可能的实现方式,在第六种可能的实 现方式中, 上述第一网络设备,还用于接收所述第三网络设备发送的剩余回传 能力信息, 所述剩余回传能力信息包括回传能力的余量、 回传所经受的延迟大 小、 緩存区大小、 回传的计费方法、 回传到达的网络类型和回传链路的可靠性 指标中的至少一项。
结合第四方面, 或第四方面的第一种可能的实现方式, 或第四方面的第二 种可能的实现方式, 或第四方面的第三种可能的实现方式, 或第四方面的第四 种可能的实现方式, 或第四方面的第五种可能的实现方式, 或第四方面的第六 种可能的实现方式,在第四方面的第七种可能的实现方式中, 所述回传控制信 息中的回传网络拓朴控制信息包括至少一条回传路径,所述回传路径分配给发 送回传请求的第二网络设备;所述回传控制信息中的物理资源分配信息包括在 使用上述回传网络拓朴控制信息所包括的回传路径时,所述回传路径可利用的 对应物理资源;
进而所述第二网络设备,具体用于在所述回传网络拓朴控制信息所包括的 回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回传。
本发明第五方面提供了一种实现数据回传的方法, 可包括:
根据信息状态信息、第二网络设备的回传请求和第三网络设备的剩余回传 能力信息,获取控制所述第二网络设备和所述第三网络设备进行数据回传的回 传控制信息,所述回传控制信息包括回传网络拓朴控制信息和物理资源分配信 息;
向所述第二网络设备和第三网络设备发送所述回传控制信息,以使得所述 第二网络设备和第三网络设备根据所述回传控制信息进行数据回传。
结合第五方面,在第一种可能的实现方式中, 所述获取控制所述第二网络 设备和所述第三网络设备进行数据回传的回传控制信息之前包括步骤:
向所述第二网络设备和第三网络设备广播参考信号指示消息,所述参考信 号指示消息用于指示第二网络设备和第三网络设备中的一个或多个网络设备 用于发送参考信号, 而其它网络设备用于测量信息状态信息。
结合第五方面的第一种可能的实现方式,在第二种可能的实现方式中, 所 述向所述第二网络设备和第三网络设备广播参考信号指示消息之后包括步骤: 接收所述第二网络设备和第三网络设备发送的信息状态信息,所述信息状 态信息是所述第二网络设备和第三网络设备根据所述参考信号指示消息测量 得到, 所述信息状态信息包括预编码矩阵指示 PMI、 信道质量指示 CQI和秩 Rank。
结合第五方面,在第三种可能的实现方式中, 所述获取控制所述第二网络 设备和所述第三网络设备进行数据回传的回传控制信息之前包括步骤:
通过第三方数据库获取所述信息状态信息。 结合第五方面,在第四种可能的实现方式中, 所述获取控制所述第二网络 设备和所述第三网络设备进行数据回传的回传控制信息之前包括步骤:
接收所述第二网络设备和第三网络设备发送的信息状态信息,所述信息状 态信息是所述第二网络设备和第三网络设备根据参考信号资源测量得到,所述 参考信号资源包括公共参考信号 CRS和解调参考信号 DMRS。
结合第五方面, 或第五方面的第一种可能的实现方式, 或第五方面的第二 种可能的实现方式, 或第五方面的第三种可能的实现方式, 或第五方面的第四 种可能的实现方式,在第五种可能的实现方式中, 所述获取控制第二网络设备 和第三网络设备进行数据回传的回传控制信息之前包括步骤:
接收所述第二网络设备发送的回传请求,所述回传请求包括需要回传的业 务总数据量的大小、 允许的传输延迟、 回传业务的优先等级、 回传业务需要支 持的最低速率和回传业务的源 /目的网络信息中的至少一项。
结合第五方面, 或第五方面的第一种可能的实现方式, 或第五方面的第二 种可能的实现方式, 或第五方面的第三种可能的实现方式, 或第五方面的第四 种可能的实现方式, 或第五方面的第五种可能的实现方式,在第六种可能的实 现方式中,所述获取控制第二网络设备和第三网络设备进行数据回传的回传控 制信息之前包括步骤:
接收所述第三网络设备发送的剩余回传能力信息,所述剩余回传能力信息 包括回传能力的余量、回传所经受的延迟大小、緩存区大小、回传的计费方法、 回传到达的网络类型和回传链路的可靠性指标中的至少一项。
结合第五方面, 或第五方面的第一种可能的实现方式, 或第五方面的第 二种可能的实现方式, 或第五方面的第三种可能的实现方式, 或第五方面的第 四种可能的实现方式, 或第五方面的第五种可能的实现方式, 或结合第五方面 的第六种可能的实现方式,在第七种可能的实现方式中, 所述回传控制信息中 的回传网络拓朴控制信息包括至少一条回传路径,所述回传路径分配给发送回 传请求的第二网络设备;所述回传控制信息中的物理资源分配信息包括在使用 上述回传网络拓朴控制信息所包括的回传路径时,所述回传路径可利用的对应 物理资源;
进而所述第二网络设备和第三网络设备根据所述回传控制信息进行数据 回传, 包括:
所述第二网络设备在所述回传网络拓朴控制信息所包括的回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回传;所述第三网络设 备根据所述回传控制信息, 利用自身回传能力进行数据回传。
本发明第六方面提供了一种实现数据回传的方法, 可包括:
向第一网络设备发送回传请求,所述回传请求用于向所述第一网络设备请 求回传控制信息, 其中, 所述回传控制信息包括回传网络拓朴控制信息和物理 资源分配信息;
接收所述第一网络设备广播的回传控制信息,所述回传控制信息是所述第 一网络设备根据信息状态信息、所述回传请求和第三网络设备发送的剩余回传 能力信息获取得到;
根据所述回传控制信 , 进行数据回传。
结合第六方面,在第一种可能的实现方式中, 所述接收第一网络设备广播 的回传控制信息之前包括:
接收所述第一网络设备广播的参考信号指示消息,所述参考信号指示消息 用于指示发送参考信号或进行信息状态信息测量。
结合第六方面的第一种可能的实现方式,在第二种可能的实现方式中, 所 述接收所述第一网络设备广播的参考信号指示消息之后包括:
若接收到的所述参考信号指示消息指示自身发送参考信号,则根据所述参 考信号指示消息发送参考信号;
若接收到的所述参考信号指示消息指示进行信息状态信息测量,则根据所 述参考信号指示消息的指示测量反馈量预编码矩阵指示 PMI、 信道质量指示 CQI和秩 Rank得到信道状态信息, 并向所述第一网络设备测量的信息状态信 息, 其中, 所述信息状态信息包括反馈量 PMI、 CQI和 Rank。
结合第六方面,在第三种可能的实现方式中, 所述接收第一网络设备广播 的回传控制信息之前包括:
根据参考信号资源测量信息状态信息,并向所述第一网络设备发送所述信 息状态信息, 所述参考信号资源包括公共参考信号 CRS 和解调参考信号 DMRS。 结合第六方面, 或第六方面的第一种可能的实现方式, 或第六方面的第二 种可能的实现方式, 或第六方面的第三种可能的实现方式,在第四种可能的实 现方式中, 所述回传请求包括需要回传的业务总数据量的大小、允许的传输延 迟、 回传业务的优先等级、 回传业务需要支持的最低速率和回传业务的源 /目 的网络信息中的至少一项。
结合第六方面, 或第六方面的第一种可能的实现方式, 或第六方面的第二 种可能的实现方式, 或第六方面的第三种可能的实现方式, 或结合第六方面的 第四种可能的实现方式,在第五种可能的实现方式中, 所述回传控制信息中的 回传网络拓朴控制信息包括至少一条回传路径,所述回传路径分配给发送回传 请求的第二网络设备;所述回传控制信息中的物理资源分配信息包括在使用上 述回传网络拓朴控制信息所包括的回传路径时,所述回传路径可利用的对应物 理资源;
进而所述根据所述回传控制信息进行数据回传包括:
在所述回传网络拓朴控制信息所包括的回传路径上, 利用所述物理资源 分配信息所指示的物理资源进行数据回传。
本发明第七方面提供了一种实现数据回传的方法, 可包括:
向第一网络设备发送剩余回传能力信息,所述剩余回传能力信息用于通知 所述第一网络设备自身具备的剩余回传能力, 其中, 所述回传控制信息包括回 传网络拓朴控制信息和物理资源分配信息;
接收所述第一网络设备广播的回传控制信息,所述回传控制信息是所述第 一网络设备根据信息状态信息、第二网络设备发送的回传请求、所述剩余回传 能力信息获取得到;
根据所述回传控制信 , 进行数据回传。
结合第七方面,在第一种可能的实现方式中, 所述接收所述第一网络设备 广播的回传控制信息之前包括:
接收所述第一网络设备广播的参考信号指示消息,所述参考信号指示消息 用于指示发送参考信号或进行信息状态信息测量。
结合第七方面的第一种可能的实现方式,在第二种可能的实现方式中,在 所述接收所述第一网络设备广播的参考信号指示消息之后包括: 若接收到的所述参考信号指示消息指示自身发送参考信号,则根据所述参 考信号指示消息发送参考信号;
若接收到的所述参考信号指示消息指示进行信息状态信息测量,则根据所 述参考信号指示消息的指示测量反馈量预编码矩阵指示 PMI、 信道质量指示 CQI和秩 Rank得到信道状态信息, 并向所述第一网络设备测量的信息状态信 息, 其中, 所述信息状态信息包括反馈量 PMI、 CQI和 Rank。
结合第七方面,在第三种可能的实现方式中, 所述接收所述第一网络设备 广播的回传控制信息之前包括:
根据参考信号资源测量信息状态信息,并向所述第一网络设备发送所述信 息状态信息, 所述参考信号资源包括公共参考信号 CRS 和解调参考信号 DMRS。
结合第七方面, 或第七方面的第一种可能的实现方式, 或第七方面的第二 种可能的实现方式, 或第七方面的第三种可能的实现方式,在第四种可能的实 现方式中, 所述剩余回传能力信息包括回传能力的余量、 回传所经受的延迟大 小、 緩存区大小、 回传的计费方法、 回传到达的网络类型和回传链路的可靠性 指标中的至少一项。
从以上技术方案可以看出, 本发明实施例具有以下优点:
本发明实施例中通过第二网络设备向第一网络设备发送回传请求,以请求 第一网络设备发送回传控制信息以回传数据; 同时, 第三网络设备向第一网络 设备发送剩余回传能力信息, 以通知第一网络设备可以利用的剩余回传能力; 因此,第一网络设备可以根据第二网络设备发送的回传请求和第三网络设备发 送的剩余回传能力信息,以及网络中信息状态信息来获取控制第二网络设备和 第三网络设备进行数据回传的回传控制信息。 与现有技术相比, 本发明实施例 能够通过第一网络设备集中管理第二网络设备和第三网络设备,实现对第二网 络设备和第三网络设备集中分配回传资源, 提高了整个网络的数据回传容量; 附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例中所 需要使用的附图作筒单地介绍,显而易见地, 下面描述中的附图仅仅是本发明 的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1为现有技术中 WMN布局图;
图 2为本发明实施例提供的网络设备基本结构示意图;
图 3-a为本发明另一实施例提供的网络设备基本结构示意图; 图 3-b为本发明另一实施例提供的网络设备基本结构示意图; 图 3-c为本发明另一实施例提供的网络设备基本结构示意图; 图 3-d为本发明另一实施例提供的网络设备基本结构示意图; 图 3-e为本发明另一实施例提供的网络设备基本结构示意图; 图 3-f为本发明另一实施例提供的网络设备基本结构示意图; 图 4为本发明实施例提供的网络设备基本结构示意图;
图 5-a为本发明另一实施例提供的网络设备基本结构示意图; 图 5-b为本发明另一实施例提供的网络设备基本结构示意图; 图 5-c为本发明另一实施例提供的网络设备基本结构示意图; 图 5-d为本发明另一实施例提供的网络设备基本结构示意图; 图 6为本发明实施例提供的网络设备基本结构示意图;
图 7-a为本发明另一实施例提供的网络设备基本结构示意图; 图 7-b为本发明另一实施例提供的网络设备基本结构示意图; 图 7-c为本发明另一实施例提供的网络设备基本结构示意图; 图 7-d为本发明另一实施例提供的网络设备基本结构示意图; 图 8-a为本发明实施例提供的实现数据回传的系统基本结构示意图; 图 8-b为本发明实施例提供的实现数据回传的系统布局图; 图 9-a为本发明实施例提供的实现数据回传方法的流程示意图; 图 9-b为本发明实施例提供的实现数据回传方法的流程示意图; 图 9-c为本发明实施例提供的实现数据回传方法的流程示意图; 图 10-a为本发明另一实施例提供的实现数据回传方法的流程示意图 图 10-b为本发明另一实施例提供的实现数据回传方法的流程示意图 图 10-c为本发明另一实施例提供的实现数据回传方法的流程示意图 具体实施方式 下面将结合本发明实施例的附图, 对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没有做出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明实施例提供了网络设备和一种实现数据回传的系统及方法,用于集 中动态分配网络中的回传资源, 提高整个网络的数据回传容量。
如图 2所示, 本发明实施例提供一种网络设备 200, 可包括:
获取模块 210, 用于根据信息状态信息、 第二网络设备的回传请求和第三 网络设备的剩余回传能力信息,获取控制所述第二网络设备和第三网络设备进 行数据回传的回传控制信息,所述回传控制信息包括回传网络拓朴控制信息和 物理资源分配信息;
广播模块 220, 用于向所述第二网络设备和第三网络设备广播所述回传控 制信息,以使得所述第二网络设备和第三网络设备根据所述回传控制信息进行 数据回传。
其中, 获取模块 210根据信息状态信息、第二网络设备的回传请求和第三 网络设备的剩余回传能力信息,获取控制第二网络设备和第三网络设备进行数 据回传的回传控制信息, 其中, 该回传控制信息包括回传网络拓朴控制信息和 物理资源分配信息;而广播模块 220将获取到的回传控制信息发送给第二网络 设备和第三网络设备,进而第二网络设备和第三网络设备能够根据回传控制信 息进行数据回传,从而实现了对第二网络设备和第三网络设备进行数据回传的 集中控制, 提高整个回传网络的容量。
在 LTE网络中, 具体定义了 3种类型的节点:
D-Node ( Donor Node ), 具备较大覆盖能力的宏节点, 它本身具备与核心 网连接的能力;
M-Node ( Mesh Node ), 能够与 D-Node在至少一个载波实现无线通信, 并且能够与相邻 M-Node在至少一个载波上实现无线通信;
M-G-Node ( Mesh- Gateway Node ),是 M-Node与 G-Node ( Gateway Node ) 的功能组合节点, 其中, G-Node除了通过 D-Node以外, 具备直接与核心网、 进行回传的能力。 因此, M-G-Node不仅能够与 D-Node在至少一个载波实现 无线通信, 并且能够与相邻 M-Node在至少一个载波上实现无线通信, 而且还 具备除了通过 D-Node以外直接与核心网进行回传的能力。
其中, D-Node 的覆盖网络中, 包括至少一个 M-Node 和至少一个 M-G-Node。
具体地, 本发明实施例中所提供的网络设备 200 为上述 LTE 网络中的
D-Node, 第二网络设备为上述 M-Node, 第三网络设备为上述 M-G-Node, 优 选地, D-Node具体可以是基站; M-Node和 M-G-Node具体可以是基站, 还可 以是能够为其它终端设备提供接入的 UE或者是自身具备一定回传能力的 UE。
下面进一步对本发明实施例进行详细说明, 其中, 本发明实施例中具体提 供三种方式获取网络中的信息状态信息, 当然, 本领域的技术人员可以理解, 还可以通过其它方式获取网络中的信息状态信息, 在此不作限定。
方式一, 如图 3-a所示, 网络设备 200还可以包括:
第一广播模块 310, 用于向所述第二网络设备和第三网络设备广播参考信 号指示消息,所述参考信号指示消息用于指示所述第二网络设备和第三网络设 备中的一个或多个网络设备用于发送参考信号,而其它网络设备用于信息状态 信息测量。
网络设备 200用于对第二网络设备和第三网络设备进行集中控制,向第二 网络设备和第三网络设备发送控制数据回传的回传控制信息, 其中, 该回传控 制信息是网络设备 200中的获取模块 210根据第二网络设备和第三网络设备的 发送的信息状态信息、第二网络设备发送的回传请求以及第三网络设备的剩余 回传能力信息获取到的。 网络中的信息状态信息是动态变化的, 网络中的第二 网络设备和第三网络设备由网络设备 200来集中控制, 因而, 在获取模块 210 获取回传控制信息前,由网络设备 200中的第一广播模块 310向网络中的第二 网络设备和第三网络设备广播参考信号指示消息,其中, 所述参考信号指示消 息具体用于指示第二网络设备和第三网络设备中的一个或者多个发送参考信 号, 而其它用来测量信道的状态。在参考信号指示消息中没有指示用来发送参 考信号的其它第二网络设备和第三网络设备在参考信号指示消息对应资源上 需要进行信道状态信息测量。
可选地, 上述参考信号具体可以包括信道状态指示参考信号 CSI-RS ( Cell-Specific Channel State Indication Reference Signal, 筒称 CSI-RS )、 和 /或 信道状态干扰测量参考信号 ( Cell- Specific Channel State Indication Interference Measurement , 筒称 CSI-IM )等。
假设网络中具有第二网络设备: 2A、 2B、 2C和 2D; 第三网络设备: 3A、 3B、 3C和 3D; 那么上述第二网络设备和第三网络设备中的一个或者多个具体 可以理解为以下情况:
51、 2A、 2B、 2C、 2D、 3A、 3B、 3C和 3D中的任意一个或者多个;
52、 2A、 2B、 2C、 2D中的任意一个或者多个;
53、 3A、 3B、 3C和 3D中的任意一个或者多个;
S4、 2A、 2B、 2C、 2D中的任意一个或者多个, 以及 3A、 3B、 3C和 3D 中的任意一个或者多个。
具体地,第二网络设备和第三网络设备在接收到网络设备 200广播的参考 信号指示消息后,如果参考信号指示消息是指示自身进行参考信号发送的, 参 考信号指示消息中会携带有发送参考信号的资源,那么将在参考信号指示消息 所指示的资源发送参考信号; 如果参考信号指示消息未指示发送参考信号, 那 么将按照参考信号指示消息的指示,对反馈量,例如预编码矩阵指示( Precoding
Matrix Indicator, 筒称 PMI )、 信道质量指示(Channel Quality Indicator, 筒称
CQI)和 秩(Rank )等进行测量得到信道状态信息, 所得到的信道状态信息将 发送给网络设备 200。
因而, 根据上述描述, 如图 3-b所示, 网络设备 200还包括第一接收模块
320, 用于接收第二网络设备和第三网络设备发送的信道状态信息, 所述信道 状态信息包括反馈量 PMI、 CQI和 Rank。
其中, M-Node和 M-G-Node根据网络设备 200广播的参考信号指示消息, 在参考信号指示消息的指示下进行信道状态信息测量, 主要对反馈量 PMI、 CQI和 Rank等进行测量,进而测量到的信道状态信息包括有 PML CQI和 Rank 等。
方式二, 如图 3-c所示, 上述网络设备 200还包括:
第二获取模块 330, 用于通过第三方数据库获取所述信息状态信息。
除了上述网络设备 200 通过向第二网络设备和第三网络设备发送参考信 号指示消息,以便第二网络设备和第三网络设备根据参考信号指示消息进行信 息状态信息测量之外, 网络设备 200还可以直接从其它第三方数据库中获取。 该第三方数据库是指上述通过测量、反馈等其它方式得到的信道状态信息数据 库。例如,通过已知的地理位置信息按照数学模型生成的信道状态信息的数据 库, 或者通过用其它设备测量并将测量结果保存而形成的数据库。
方式三,在不需要网络设备 200单独发送用于信息状态信息测量的参考信 号指示消息的情况下, 由第二网络设备和第三网络设备根据其它参考信号资 源, 例如公共参考信号 (Cell-Specific Reference Signals , 筒称 CRS )或解调 参考信号( UE-Specific Reference Signals , 筒称 DMRS )进行测量后发送给第 一网络设备。 因此, 如图 3-d所示, 上述网络设备 200还包括:
第二接收模块 340, 用于接收所述第二网络设备和第三网络设备发送的信 息状态信息,所述信息状态信息是所述第二网络设备和第三网络设备根据参考 信号资源测量得到, 所述参考信号资源包括公共参考信号 CRS和解调参考信 号 DMRS。
第二网络设备不具备与核心网连接的能力,在进行数据回传时,通过向网 络设备 200发送回传请求, 请求网络设备 200分配回传资源以实现数据回传。 当然, 第三网络设备在需要时也可以向网络设备 200提出回传请求。 因此, 如 图 3-e所示, 上述网络设备 200还包括:
第三接收模块 350, 用于接收第二网络设备发送的回传请求, 所述回传请 求包括: 回传的业务总数据量的大小、允许的传输延迟、回传业务的优先等级、 回传业务所需要支持的最低回传速率和回传业务的源 /目的网络信息中的至少 一项。
由于第二网络设备可以进行上下行回传, 具体地, 当发送回传请求的第二 网络设备作为上行设备时,向网络设备 200发送的回传请求具体可以为上行回 传请求; 当发送回传请求的第二网络设备作为下行设备时, 向网络设备 200 发送的回传请求具体可以为下行回传请求。
可选地, 回传业务的源 /目的网络信息具体可以包括源 /目的网络类型和源 / 目的网络地址等。网络类型和网络地址可以是通信领域中所涉及的网络类型和 网络地址。 举例来说, 如果第二网络设备所发送的是一个下行回传请求, 那么 源网络类型可以是互联网, 源网络地址可以是互联网的地址, 而目的网络类型 可以是电信网,目的网络地址可以是提出回传请求的第二网络设备的网络标识 等。如果第二网络设备发送的是一个上行回传请求, 那么源网络类型可以是电 信网, 源网络地址可以是发送回传请求的第二网络设备的网络标识, 目的网络 类型为可以是互联网, 目的网络地址可以是互联网地址。
如图 3-f所示, 上述网络设备 200还包括第四接收模块 340;
其中, 所述第四接收模块 360, 用于接收第三网络设备发送的剩余回传能 力信息,所述剩余回传能力信息包括回传能力的余量、回传所经受的延迟大小、 緩存区大小、 回传的计费方法、 回传到达的网络类型和回传链路的可靠性指标 中的至少一项。
具体地, 回传能力的余量为第三网络设备还能额外支持的数据速率大小; 计费方法可以包括免费、包月计费或按照流量计费;网络类型可以包括因特网、 电信运营商的核心网、 网络设备 200或其它专属网络,也就是说通过第三网络 设备可以回传数据到因特网、 电信运营商的核心网、其它网络设备 200或其它 专属网络; 回传链路的可靠性指标是指回传路径的中断概率。
其中, 第三网络设备具备与核心网直接连接进行回传的能力, 网络设备 200在分配回传控制资源之前通过了解第三网络设备的剩余回传能力信息, 以 便能够根据第三网络设备的剩余回传能力信息适当地分配回传控制资源。
可以理解的是, 上述广播模块具体用于向所述第二网络设备和第三网络 设备发送所述回传控制信息,以使得所述第二网络设备在所述回传网络拓朴控 制信息所指示的回传路径上,利用所述物理资源分配信息所指示的物理资源进 行数据回传; 所述第三网络设备在接收到所述回传控制信息后,根据所述回传 控制信息, 利用自身的回传能力进行数据回传。
具体地,上述回传控制信息包括有回传网络拓朴控制信息和物理资源分配 信息。 该回传网络拓朴控制信息主要包括至少一条回传路径, 其中, 回传路径 主要是网络设备 200分配给发送回传请求的第二网络设备,是第二网络设备可 以用来进行回传数据的回传路径,其中,每条回传路径中包含一跳或多跳连接, 而每一跳连接表示了两个第二网络设备之间或第二网络设备和第三网络设备 之间的数据传输通道。相对应地,在物理资源分配信息中包括了每条回传路径 对应的可利用的物理资源, 具体地,是物理资源分配信息中包括了在每一跳连 接上回传数据时,每一跳连接可利用的对应的物理资源, 该物理资源包含了每 一跳连接可使用的时域、 频域、 空域、 码域等。 进一步地, 上述时域资源具体 为系统中的时隙资源集合;频域资源具体为载波信息以及载波内的更小粒度的 频域资源信息, 例如 LTE系统中的 PRB集合; 空域资源可以为预定义的码本 中的某个预编码信息或者对于多个定向波束的选择信息;码域资源可以为在可 用正交 /准正交码集合中的一个或多个的指示信息。 此外, 该物理资源分配信 息还可以指示推荐使用的调制编码方式( Modulation and Coding Scheme, 筒称 MCS )信息。需要说明的是,在两个第二网络设备之间可以定义多个上述连接, 并且多个连接对应的物理资源可以存在部分相同的情况。
因此,在第二网络设备接收到回传控制信息后,在回传控制信息为其所分 配的路径上利用对应的物理资源进行数据回传。具体地,如果该回传控制信息 针对的是第二网络设备发送的上行回传请求,假设该上行回传主要是由第二网 络设备向第三网络设备回传数据,若回传控制信息中回传网络拓朴控制信息的 回传路径包括多跳,那么第二网络设备将待回传的数据先回传到第一跳的接收 端, 然后再从第一跳的接收端回传到第二跳的接收端, 直到数据回传到第三网 络设备, 其中, 在回传路径的每一跳上回传数据时, 可以利用物理资源分配信 息中分配的物理资源。 最后, 第三网络设备收到从第二网络设备回传的数据之 后, 通过自身具备的回传网络完成回传; 相同地, 如果回传控制信息针对的是 下行回传请求,假设该下行回传主要是由第三网络设备向第二网络设备发送数 据,第三网络设备根据网络设备 200对于接收端第二网络设备发送的回传控制 信息,根据回传控制信息所指示的回传路径,逐跳将数据回传到第二网络设备。 当然,如果回传控制信息指示的回传路径不止一条, 则可以将回传数据拆分到 多条回传路径传输, 可以实现更快的回传速度。
如图 4所示, 本发明实施例还提供一种网络设备 400, 可包括:
请求发送模块 410, 用于向第一网络设备发送回传请求, 所述回传请求用 于向所述第一网络设备请求回传控制信息, 其中, 所述回传控制信息包括回传 网络拓朴控制信息和物理资源分配信息;
第一信息接收模块 420, 用于接收所述第一网络设备广播的回传控制信 息, 所述回传控制信息是所述第一网络设备根据信息状态信息、所述回传请求 和第三网络设备发送的剩余回传能力信息获取得到;
第一数据回传模块 430, 用于根据所述回传控制信息进行数据回传。
在本发明实施例中,由网络设备 400的请求发送模块 410向第一网络设备 发送回传请求, 以向第一网络设备请求回传控制信息,之后第一信息接收模块 420接收第一网络设备广播的回传控制信息, 其中, 所述回传控制信息包括回 传网络拓朴控制信息和物理资源分配信息,数据回传模块 430根据第一信息接 收模块 420接收到的回传控制信息进行数据回传,从而提高整个回传网络的容 量。
在 LTE网络中, 具体定义了 3种类型的节点:
D-Node, 具备较大覆盖能力的宏节点, 它本身具备与核心网连接的能力; M-Node, 能够与 D-Node在至少一个载波实现无线通信,并且能够与相邻 M-Node在至少一个载波上实现无线通信;
M-G-Node, 是 M-Node与 G-Node的功能组合节点, 其中, G-Node除了 通过 D-Node以外, 具备直接与核心网进行回传的能力。 因此, M-G-Node不 仅能够与 D-Node在至少一个载波实现无线通信, 并且能够与相邻 M-Node在 至少一个载波上实现无线通信, 而且还具备除了通过 D-Node以外直接与核心 网进行回传的能力。
其中, D-Node 的覆盖网络中, 包括至少一个 M-Node 和至少一个 M-G-Node。
本发明实施例中所提供的第一网络设备为上述 LTE网络中的 D-Node, 网 络设备 400为上述 M-Node,第三网络设备为上述 M-G-Node,优选地, D-Node 具体可以是基站; M-Node和 M-G-Node具体可以是基站, 还可以是能够为其 它终端设备提供接入的 UE或者是自身具备一定回传能力的 UE。
下面对上述图 4所提供的网络设备 400作进一步介绍:
网络设备 400根据第一网络设备发送的回传控制信息进行数据回传,而回 传控制信息是第一网络设备根据网络中信息状态信息、网络设备 400发送的回 传请求和第三网络设备发送的剩余回传能力信息获取得到,而其中网络中信息 状态信息可以由网络设备 400和第三网络设备测量后发送给第一网络设备,具 体地, 网络设备 400测量信息状态信息可以通过以下方式:
方式一, 如图 5-a所示, 网络设备 400还包括:
第五接收模块 510, 用于接收第一网络设备发送的参考信号指示消息, 所 述参考信号指示消息用于指示发送参考信号或进行信息状态信息测量。
其中, 网络设备 400测量信息状态信息, 可以是在第一网络设备发送参考 信号指示消息的前提下进行。该参考信号指示消息主要是第一网络设备发送到 的, 用于指示网络设备 400 和第三网络设备中的一个或多个用于发送参考信 号, 而其它则用于进行信息状态信息测量。
可选地, 参考信号可以包括 CSI-RS和 /或 CSI-IM等。
假设网络中具有网络设备 400: 2A、 2B、 2C和 2D; 第三网络设备: 3A、
3B、 3C和 3D; 那么上述网络设备 400和第三网络设备中的一个或者多个具体 可以理解为以下情况:
51、 2A、 2B、 2C、 2D、 3A、 3B、 3C和 3D中的任意一个或者多个;
52、 2A、 2B、 2C、 2D中的任意一个或者多个;
S3、 3A、 3B、 3C和 3D中的任意一个或者多个;
S4、 2A、 2B、 2C、 2D中的任意一个或者多个, 以及 3A、 3B、 3C和 3D 中的任意一个或者多个。
如图 5-b所示 , 当上述第五接收模块 510所接收到的参考信号指示消息指 示网络设备 400用于发送参考信号时, 该网络设备 400还包括:
第一发送模块 520, 用于若根据所述参考信号指示消息发送参考信号; 如图 5-c所示, 当上述第五接收模块 510所接收到的参考信号指示消息指 示网络设备 400用于测量信息状态信息时, 该网络设备还包括:
第一测量模块 530, 用于若接收到的所述参考信号指示消息用于指示进行 信息状态信息测量,则根据所述参考信号指示消息的指示测量反馈量预编码矩 阵指示 PMI、 信道质量指示 CQI和 Rank得到信道状态信息, 并向所述第一网 络设备测量的信息状态信息, 其中, 所述信息状态信息包括反馈量 PMI、 CQI 和 Rank;
第二发送模块 540, 用于向所述第一网络设备发送所述信息状态信息。 网络设备 400进行信道状态信息的测量时,主要根据第一网络设备广播的 参考信号指示消息进行测量, 因而, 网络设备 400中的第五接收模块 510具体 用于接收第一网络设备发送的参考信号指示消息, 其中, 参考信号指示消息用 于指示发送参考信号或进行信道状态信息测量;当参考信号指示消息有指示网 络设备 400发送参考信号时,那么网络设备 400中还包括有第一发送模块 520 , 第一发送模块 520根据所述参考信号指示消息的指示发送参考信号;当参考信 号指示消息中没有指示网络设备 400发送参考信号时,那么网络设备 400中包 括第一测量模块 530, 第一测量模块 530根据所述参考信号指示消息的指示测 量反馈量 PMI、 CQI和 Rank得到信道状态信息; 其中, 所述信道状态信息包 括反馈量 PMI、 CQI和 Rank; 之后, 第二发送模块 540向第一网络设备发送 测量到的信道状态信息。
可选地, 上述参考信号具体可以包括 CSI-RS和 /或 CSI-IM等。
方式二,在不需要第一网络设备发送用于信息状态信息测量的参考信号指 示消息的情况下, 由网络设备 400和第三网络设备根据其它参考信号资源, 例 如 CRS或 DMRS进行测量,得到信息状态信息后发送给第一网络设备。因此, 如图 5-d所示, 上述网络设备 400还包括:
第二测量模块 550, 用于根据参考信号资源测量信息状态信息; 所述参考 信号资源包括公共参考信号 CRS和解调参考信号 DMRS。
第三发送模块 560, 用于向所述第一网络设备发送所述第二测量模块 550 测量得到的信息状态信息。
当然,除了上述所提供的由网络设备 400和第三网络设备测量信息状态信 息之外,还可以由第一网络设备从第三方数据库的数据库中直接获取,在此不 作限定。
由于网络设备 400可以进行上下行回传, 具体地, 当发送回传请求的网络 设备 400作为上行设备时,向第一网络设备发送的回传请求具体可以为上行回 传请求; 当发送回传请求的网络设备 400作为下行设备时, 向第一网络设备发 送的回传请求具体可以为下行回传请求, 其中, 回传请求可以包括以下一项或 多项内容:
Al、 需要回传的业务总数据量大小;
A2、 可以接受的传输延迟; A3、 回传业务的优先等级;
A4、 回传业务需要支持的最低速率;
A5、 回传业务的源 /目的网络信息。
可选地, 网络信息可以包括源 /目的网络类型信息和源 /目的网络地址, 网 络类型和网络地址可以是通信领域中所涉及的网络类型和网络地址。 举例来 说,如果网络设备 400所发送的是一个下行回传请求, 那么源网络类型可以是 互联网, 源网络地址可以是互联网的地址, 而目的网络类型可以是电信网, 目 的网络地址可以是提出回传请求的网络设备 400的网络标识等。如果网络设备 400发送的是一个上行回传请求, 那么源网络类型可以是电信网, 源网络地址 可以是发送回传请求的网络设备 400的网络标识,目的网络类型为可以是互联 网, 目的网络地址可以是互联网地址。
具体地,第三网络设备向第一网络设备发送的剩余回传能力信息包括以下 一项或多项内容:
Bl、 第三网络设备的回传能力的余量;
B2、 通过第三网络设备回传时所经受的延迟大小;
B3、 第三网络设备的緩存区大小;
B4、 通过第三网络设备回传的计费方法;
B5、 通过第三网络设备回传可以到达的网络类型;
B6、 回传链路的可靠性指标。
具体地, B1 的回传能力的余量为第三网络设备还能额外支持的数据速率 大小; B4的计费方法可以包括免费、 包月计费或按照流量计费; B5的网络类 型可以包括因特网、 电信运营商的核心网、 第一网络设备或其它专属网络, 也 就是说通过第三网络设备可以回传数据到因特网、 电信运营商的核心网、其它 第一网络设备或其它专属网络; B6 的回传链路的可靠性指标是指回传路径的 中断概率。
具体地,上述回传控制信息包括有回传网络拓朴控制信息和物理资源分配 信息。 该回传网络拓朴控制信息主要包括至少一条回传路径, 其中, 回传路径 主要是第一网络设备分配给发送回传请求的网络设备 400, 是网络设备 400可 以用来进行回传数据的回传路径,其中,每条回传路径中包含一跳或多跳连接, 而每一跳连接表示了两个网络设备 400之间,或网络设备 400和第三网络设备 之间的数据传输通道。相对应地,在物理资源分配信息中包括了每条回传路径 对应的可利用的物理资源, 具体地,是物理资源分配信息中包括了在每一跳连 接上回传数据时,每一跳连接可利用的对应的物理资源, 该物理资源包含了每 一跳连接可使用的时域、 频域、 空域、 码域等。 进一步地, 上述时域资源具体 为系统中的时隙资源集合;频域资源具体为载波信息以及载波内的更小粒度的 频域资源信息, 例如 LTE系统中的 PRB集合; 空域资源可以为预定义的码本 中的某个预编码信息或者对于多个定向波束的选择信息;码域资源可以为在可 用正交 /准正交码集合中的一个或多个的指示信息。 此外, 该物理资源分配信 息还可以指示推荐使用的 MCS信息。 需要说明的是, 在两个网络设备 400之 间可以定义多个上述连接,并且多个连接对应的物理资源可以存在部分相同的 情况。
因此,在网络设备 400接收到回传控制信息后,在回传控制信息为其所分 配的路径上利用对应的物理资源进行数据回传; 具体地,如果该回传控制信息 针对的是网络设备 400发送的上行回传请求,假设该上行回传主要是由网络设 备 400向第三网络设备回传数据,若回传控制信息中回传网络拓朴控制信息的 回传路径包括多跳,那么网络设备 400将待回传的数据先回传到第一跳的接收 端, 然后再从第一跳的接收端回传到第二跳的接收端, 直到数据回传到第三网 络设备, 其中, 在回传路径的每一跳上回传数据时, 可以利用物理资源分配信 息中分配的物理资源。 最后, 第三网络设备收到从网络设备 400回传的数据之 后, 通过自身具备的回传网络完成回传; 相同地, 如果回传控制信息针对的是 下行回传请求,假设该下行回传主要是由第三网络设备向网络设备 400发送数 据,第三网络设备根据第一网络设备对于接收端网络设备 400发送的回传控制 信息,根据回传控制信息所指示的回传路径,逐跳将数据回传到网络设备 400。 当然,如果回传控制信息指示的回传路径不止一条, 则可以将回传数据拆分到 多条回传路径传输, 可以实现更快的回传速度。
如图 6所示, 本发明实施例还提供一种网络设备 600, 可包括:
回传能力发送模块 610, 用于向第一网络设备发送剩余回传能力信息, 所 述剩余回传能力信息包括根据自身回传能力进行数据回传后所剩余的回传能 力的信息;
第二信息接收模块 620, 用于接收所述第一网络设备广播的回传控制信 息, 所述回传控制信息是所述第一网络设备根据信息状态信息、第二网络设备 发送的回传请求、 所述剩余回传能力信息获取得到, 其中, 所述回传控制信息 包括回传网络拓朴控制信息和物理资源分配信息;
第三数据回传模块 630, 用于根据所述回传控制信息进行数据回传。
其中,回传能力发送模块 610通过将剩余回传能力信息发送给第一网络设 备, 第一网络设备根据该剩余回传能力信息、信息状态信息和第二网络设备发 送的回传请求获取回传控制信息,第二信息接收模块 620接收到回传控制信息 后, 由第三数据回传模块 630根据回传控制信息进行数据回传,从而提高回传 网络的容量。
在 LTE网络中, 具体定义了 3种类型的节点:
D-Node, 具备较大覆盖能力的宏节点, 它本身具备与核心网连接的能力;
M-Node, 能够与 D-Node在至少一个载波实现无线通信,并且能够与相邻 M-Node在至少一个载波上实现无线通信;
M-G-Node, 是 M-Node与 G-Node的功能组合节点, 其中, G-Node除了 通过 D-Node以外, 具备直接与核心网进行回传的能力。 因此, M-G-Node不 仅能够与 D-Node在至少一个载波实现无线通信, 并且能够与相邻 M-Node在 至少一个载波上实现无线通信, 而且还具备除了通过 D-Node以外直接与核心 网进行回传的能力。
其中, D-Node 的覆盖网络中, 包括至少一个 M-Node 和至少一个 M-G-Node。
本发明实施例中所提供的第一网络设备为上述 LTE网络中的 D-Node, 第 二网络设备为上述 M-Node, 网络设备 600为上述 M-G-Node,优选地, D-Node 具体可以是基站; M-Node和 M-G-Node具体可以是基站, 还可以是能够为其 它终端设备提供接入的 UE或者是自身具备一定回传能力的 UE。
下面对上述图 6所提供的网络设备 600作进一步介绍:
网络设备 600根据第一网络设备发送的回传控制信息进行数据回传,而回 传控制信息是第一网络设备根据网络中信息状态信息、第二网络设备发送的回 传请求和网络设备 600发送的剩余回传能力信息获取得到 ,而其中网络中信息 状态信息可以由第二网络设备和网络设备 600测量后发送给第第一网络设备, 具体地, 网络设备 600测量信息状态信息可以通过以下方式:
方式一, 如图 7-a所示, 上述网络设备还包括:
第六接收模块 710, 用于接收所述第一网络设备广播的参考信号指示消 息, 所述参考信号指示消息用于指示发送参考信号或进行信息状态信息测量。
其中, 网络设备 600测量信息状态信息, 可以是在第一网络设备发送参考 信号指示消息的前提下进行。该参考信号指示消息主要是第一网络设备发送到 的, 用于指示第二网络设备和网络设备 600 中的一个或多个用于发送参考信 号, 而其它则用于进行信息状态信息测量。
可选地, 上述参考信号具体可以包括 CSI-RS和 /或 CSI-IM等。
假设网络中具有第二网络设备: 2A、 2B、 2C和 2D; 网络设备 600: 3A、 3B、 3C和 3D; 那么上述第二网络设备和网络设备 600中的一个或者多个具体 可以理解为以下情况:
Sl、 2A、 2B、 2C、 2D、 3A、 3B、 3C和 3D中的任意一个或者多个;
52、 2A、 2B、 2C、 2D中的任意一个或者多个;
53、 3A、 3B、 3C和 3D中的任意一个或者多个;
54、 2A、 2B、 2C、 2D中的任意一个或者多个, 以及 3A、 3B、 3C和 3D 中的任意一个或者多个。
如图 7-b所示, 当上述第六接收模块 710所接收的参考信号指示消息指示 网络设备 600用于发送参考信号时, 该网络设备 600还包括:
第五发送模块 720, 用于根据所述参考信号指示消息发送参考信号。
如图 7-c所示, 当上述第六接收模块 710所接收的参考信号指示消息指示 网络设备 600进行信息状态信息测量时, 该网络设备 600还包括:
第三测量模块 730, 用于根据所述参考信号指示消息的指示测量反馈量预 编码矩阵指示 PMI、 信道质量指示 CQI和 Rank得到信道状态信息, 其中, 所 述信息状态信息包括反馈量 PMI、 CQI和 Rank;
第六发送模块 740, 用于向所述第一网络设备发送所述信息状态信息。 网络设备 600进行信道状态信息的测量时,主要根据第一网络设备广播的 参考信号指示消息进行测量, 因而, 网络设备 600中的第六接收模块 710具体 用于接收第一网络设备发送的参考信号指示消息, 其中, 参考信号指示消息用 于指示发送参考信号或进行信道状态信息测量;当参考信号指示消息有指示网 络设备 600发送参考信号时,那么网络设备 600中还包括有第五发送模块 720 , 第五发送模块 720根据所述参考信号指示消息的指示发送参考信号;当参考信 号指示消息中没有指示网络设备 600发送参考信号时,那么网络设备 600中包 括第三测量模块 730, 该第三测量模块 730根据所述参考信号指示消息的指示 测量反馈量 PMI、 CQI和 Rank得到信道状态信息; 其中, 所述信道状态信息 包括反馈量 PMI、 CQI和 Rank; 之后, 第六发送模块 740向第一网络设备发 送测量到的信道状态信息。
方式二,在不需要第一网络设备发送用于信息状态信息测量的参考信号指 示消息的情况下, 由第二网络设备和网络设备 600根据其它参考信号资源, 例 如 CRS或 DMRS进行测量,得到信息状态信息后发送给第一网络设备。因此, 如图 7-d所示, 该网络设备 600还包括:
第四测量模块 750, 用于根据参考信号资源测量信息状态信息; 所述参考 信号包括公共参考信号 CRS和解调参考信号 DMRS;
第七发送模块 760, 用于向所述第一网络设备发送所述第四测量模块 750 测量得到的信息状态信息。
当然,除了上述所提供的由第二网络设备和网络设备 600测量信息状态信 息之外,还可以由第一网络设备从第三方数据库的数据库中直接获取,在此不 作限定。
其中, 该第三方数据库是指上述通过测量、反馈等其它方式得到的信道状 态信息数据库。例如,通过已知的地理位置信息按照数学模型生成的信道状态 信息的数据库, 或者通过用其它设备测量并将测量结果保存而形成的数据库。
具体地,上述第二网络设备向第一网络设备发送的回传请求可以包括以下 A4、 回传业务需要支持的最低速率;
A5、 回传业务的源 /目的网络信息。
可选地, 源 /目的网络信息可以包括源 /目的网络类型信息和源 /目的网络地 址, 网络类型和网络地址可以是通信领域中所涉及的网络类型和网络地址。
由于第二网络设备可以进行上下行回传, 具体地, 当发送回传请求的第二 网络设备作为上行设备时,向第一网络设备发送的回传请求具体可以为上行回 传请求; 当发送回传请求的第二网络设备作为下行设备时, 向第一网络设备发 送的回传请求具体可以为下行回传请求。
举例来说,如果第二网络设备所发送的是一个下行回传请求, 那么源网络 类型可以是互联网, 源网络地址可以是互联网的地址, 而目的网络类型可以是 电信网, 目的网络地址可以是提出回传请求的第二网络设备的网络标识等。如 果第二网络设备发送的是一个上行回传请求, 那么源网络类型可以是电信网, 源网络地址可以是发送回传请求的第二网络设备的网络标识,目的网络类型为 可以是互联网, 目的网络地址可以是互联网地址。
具体地,网络设备 600向第一网络设备发送的剩余回传能力信息包括以下 一项或多项内容:
Bl、 网络设备 600的回传能力的余量;
B2、 通过网络设备 600回传时所经受的延迟大小;
B3、 网络设备 600的緩存区大小;
B4、 通过网络设备 600回传的计费方法;
B5、 通过网络设备 600回传可以到达的网络类型;
B6、 回传链路的可靠性指标。
具体地, B1的回传能力的余量为网络设备 600还能额外支持的数据速率 大小; B4的计费方法可以包括免费、 包月计费或按照流量计费; B5的网络类 型可以包括因特网、 电信运营商的核心网、 第一网络设备或其它专属网络, 也 就是说通过网络设备 600可以回传数据到因特网、 电信运营商的核心网、其它 第一网络设备或其它专属网络; B6 的回传链路的可靠性指标是指回传路径的 中断概率。
具体地,上述回传控制信息包括有回传网络拓朴控制信息和物理资源分配 信息。 该回传网络拓朴控制信息主要包括至少一条回传路径, 其中, 回传路径 主要是第一网络设备分配给发送回传请求的第二网络设备,是第二网络设备可 以用来进行回传数据的回传路径,其中,每条回传路径中包含一跳或多跳连接, 而每一跳连接表示了两个第二网络设备之间,或第二网络设备与第三网络设备 之间的数据传输通道。相对应地,在物理资源分配信息中包括了每条回传路径 对应的可利用的物理资源, 具体地,是物理资源分配信息中包括了在每一跳连 接上回传数据时,每一跳连接可利用的对应的物理资源, 该物理资源包含了每 一跳连接可使用的时域、 频域、 空域、 码域等。 进一步地, 上述时域资源具体 为系统中的时隙资源集合;频域资源具体为载波信息以及载波内的更小粒度的 频域资源信息, 例如 LTE系统中的 PRB集合; 空域资源可以为预定义的码本 中的某个预编码信息或者对于多个定向波束的选择信息;码域资源可以为在可 用正交 /准正交码集合中的一个或多个的指示信息。 此外, 该物理资源分配信 息还可以指示推荐使用的 MCS信息。 需要说明的是, 在两个第二网络设备之 间可以定义多个上述连接,并且多个连接对应的物理资源可以存在部分相同的 情况。
因此,在第二网络设备接收到回传控制信息后,在回传控制信息为其所分 配的路径上利用对应的物理资源进行数据回传; 具体地,如果该回传控制信息 针对的是第二网络设备发送的上行回传请求,假设该上行回传主要是由第二网 络设备向网络设备 600回传数据,若回传控制信息中回传网络拓朴控制信息的 回传路径包括多跳,那么第二网络设备将待回传的数据先回传到第一跳的接收 端, 然后再从第一跳的接收端回传到第二跳的接收端, 直到数据回传到网络设 备 600, 其中, 在回传路径的每一跳上回传数据时, 可以利用物理资源分配信 息中分配的物理资源。 最后, 网络设备 600收到从第二网络设备回传的数据之 后, 通过自身具备的回传网络完成回传; 相同地, 如果回传控制信息针对的是 下行回传请求,假设该下行回传主要是由网络设备 600向第二网络设备发送数 据,网络设备 600根据第一网络设备对于接收端第二网络设备发送的回传控制 信息,根据回传控制信息所指示的回传路径,逐跳将数据回传到第二网络设备。 当然,如果回传控制信息指示的回传路径不止一条, 则可以将回传数据拆分到 多条回传路径传输, 可以实现更快的回传速度。 如图 8-a所示, 本发明实施例还提供一种实现数据回传的系统 800, 具体 可包括: 如图 2至图 3-f 中任意一个所述的第一网络设备 200、如图 4至图 5-d 中任意一项所述的第二网络设备 400和如图 6至图 7-d中任意一个所述的第三 网络设备 600;
其中, 所述第一网络设备 200用于根据信息状态信息、 第二网络设备 400 的回传请求和第三网络设备 600的剩余回传能力信息,获取控制所述第二网络 设备 400和第三网络设备 600进行数据回传的回传控制信息;并向所述第二网 络设备 400和第三网络设备 600发送所述回传控制信息,以使得所述第二网络 设备 400和第三网络设备 600根据所述回传控制信息进行数据回传;
所述第二网络设备 400接收第一网络设备 200发送的回传控制信息,并根 据所述回传控制信息进行数据回传;
所述第三网络设备 600接收第一网络设备 200发送的回传控制信息,并根 据所述回传控制信息进行数据回传;
所述回传控制信息包括回传网络拓朴控制信息和物理资源分配信息。 本发明实施例所提供的实现数据回传的系统中主要包括第一网络设备
200、 第二网络设备 400和第三网络设备 600, 其中, 第一网络设备 200主要 用于向第二网络设备 400和第三网络设备 600发送控制数据回传的回传控制信 息, 而第二网络设备 400和第三网络设备 600在接收到回传控制信息后, 分別 根据回传控制信息进行数据回传,本发明通过第一网络设备 200进行回传资源 集中分配, 能够有效地进行集中控制管理,提高第二网络设备 400和第三网络 设备 600的回传网络容量。
本发明实施例提供的实现数据回传的系统应用于 LTE 网络中, 如图 6-b 所示, 在 LTE网络中具体定义了 3种类型的节点:
D-Node, 是具备较大覆盖能力的宏节点, 它本身具备与核心网连接的能 力;
M-Node, 能够与 D-Node在至少一个载波实现无线通信,并且能够与相邻 M-Node在至少一个载波上实现无线通信;
M-G-Node, 是 M-Node与 G-Node的功能组合节点, 其中, G-Node除了 通过 D-Node以外, 具备直接与核心网进行回传的能力。 因此, M-G-Node不 仅能够与 D-Node在至少一个载波实现无线通信, 并且能够与相邻 M-Node在 至少一个载波上实现无线通信, 而且还具备除了通过 D-Node以外直接与核心 网进行回传的能力。
其中, D-Node 的覆盖网络中, 包括至少一个 M-Node 和至少一个 M-G-Node。
本发明实施例中所提供的第一网络设备 200为上述 D-Node, 第二网络设 备 400 为上述 M-Node,第三网络设备 600为上述 M-G-Node。优选地, D-Node 具体可以是基站; M-Node和 M-G-Node具体可以是基站, 还可以是能够为其 它终端设备提供接入的 UE或者是自身具备一定回传能力的 UE。
结合图 6-b, 对上述图 6-a所提供的实现数据回传的系统作进一步介绍: 第一网络设备 200覆盖的网络中,包括第二网络设备 400和第三网络设备 600, 其中, 第三网络设备虽然具体与核心网连接的能力, 可以根据自身回传 能力回传数据,但是第二网络设备 400和第三网络设备 600还是由第一网络设 备 200进行集中回传资源的分配, 分配相应的回传资源以便第二网络设备 400 能够根据分配的回传资源进行数据回传,而第三网络设备 600在第一网络设备 200的集中控制下, 利用自身的回传能力进行数据回传。 其中, 第一网络设备 200集中控制第二网络设备 400和第三网络设备进行数据回传, 主要通过向第 二网络设备 400和第三网络设备 600发送回传控制信息, 其中, 回传控制信息 是第一网络设备 200根据网络中的信道状态信息、第二网络设备 400的回传请 求和第三网络设备 600的剩余回传能力信息获取的, 因此, 在 D-Node发送回 传控制信息前, M-Node和 /或 M-G-Node相应地反馈上述信道状态信息、 回传 请求和剩余回传能力信息。
本发明实施例中具体提供三种方式获取网络中的信息状态信息, 当然, 本 领域的技术人员可以理解, 还可以通过其它方式获取网络中的信息状态信息, 在此不作限定。
方式一,第一网络设备 200向第二网络设备 400和第三网络设备 600广播 参考信号指示消息, 所述参考信号指示消息用于指示所述第二网络设备 400 和第三网络设备 600中的一个或多个网络设备用于发送参考信号,而其它网络 设备用于信息状态信息测量。 可选地, 上述参考信号具体可以包括 CSI-RS和 /或 CSI-IM等。 假设网络中具有第二网络设备: 2A、 2B、 2C和 2D; 第三网络设备: 3A、 3B、 3C和 3D; 那么上述第二网络设备和第三网络设备中的一个或者多个具体 可以理解为以下情况:
Sl、 2A、 2B、 2C、 2D、 3A、 3B、 3C和 3D中的任意一个或者多个;
52、 2A、 2B、 2C、 2D中的任意一个或者多个;
53、 3A、 3B、 3C和 3D中的任意一个或者多个;
54、 2A、 2B、 2C、 2D中的任意一个或者多个, 以及 3A、 3B、 3C和 3D 中的任意一个或者多个。
之后,第二网络设备 400和第三网络设备 600根据接收到的参考信号指示 消息, 若所述参考信号指示消息用于指示自身发送所述参考信号, 那么第二网 络设备 400或第三网络设备 600将在所述参考信号指示消息所指示的资源上发 送参考信号; 若所述参考信号指示消息用于指示进行信道状态信息测量, 第二 网络设备 400或第三网络设备 600根据所述参考信号指示消息的指示测量反馈 量 PMI、 CQI和 Rank得到信道状态信息。 然后, 第二网络设备或第三网络设 备向第一网络设备 200发送测量得到的信道状态信息, 其中, 所述信道状态信 息包括 PMI、 CQI和 Rank。
方式二, 第一网络设备 200还用于通过第三方数据库获取信息状态信息。 其中, 该第三方数据库是指上述通过测量、反馈等其它方式得到的信道状 态信息数据库。例如,通过已知的地理位置信息按照数学模型生成的信道状态 信息的数据库, 或者通过用其它设备测量并将测量结果保存而形成的数据库。
方式三,在不需要第一网络设备 200发送用于信息状态信息测量的参考信 号指示消息的情况下,由第二网络设备 400和第三网络设备 600根据其它参考 信号资源, 例如 CRS或 DMRS进行测量得到信息状态信息, 之后将信息状态 信息发送给第一网络设备 200。
具体地, 第二网络设备 400不具备与核心网连接的能力,在进行数据回传 时,通过向第一网络设备 200发送回传请求,请求第一网络设备 200广播回传 控制信息以实现数据回传。 当然, 第三网络设备在需要时也可以向网络设备 200提出回传请求, 在此不作限定。 由于第二网络设备可以进行上下行回传, 具体地, 当发送回传请求的第二 网络设备作为上行设备时,向第一网络设备发送的回传请求具体可以为上行回 传请求; 当发送回传请求的第二网络设备作为下行设备时, 向第一网络设备发 送的回传请求具体可以为下行回传请求, 其中, 回传请求可以包括以下一项或 多项内容:
Al、 需要回传的业务总数据量大小;
A2、 可以接受的传输延迟;
A3、 回传业务的优先等级;
A4、 回传业务需要支持的最低速率;
A5、 回传业务的源 /目的网络信息。
可选地, 源 /目的网络信息可以包括源 /目的网络类型信息和源 /目的网络地 址。 网络类型和网络地址可以是通信领域中所涉及的网络类型和网络地址。举 例来说,如果第二网络设备所发送的是一个下行回传请求, 那么源网络类型可 以是互联网,源网络地址可以是互联网的地址,而目的网络类型可以是电信网, 目的网络地址可以是提出回传请求的第二网络设备的网络标识等。如果第二网 络设备发送的是一个上行回传请求, 那么源网络类型可以是电信网, 源网络地 址可以是发送回传请求的第二网络设备的网络标识,目的网络类型为可以是互 联网, 目的网络地址可以是互联网地址。
具体地,第三网络设备 600还用于向第一网络设备 200发送剩余回传能力 信息, 以便第一网络设备 200能够根据第三网络设备 600的剩余回传能力, 进 行集中控制。
其中,第三网络设备 600向第一网络设备 200发送的剩余回传能力信息包 括以下一项或多项内容:
Bl、 第三网络设备 600的回传能力的余量;
B2、 通过第三网络设备 600回传时所经受的延迟大小;
B3、 第三网络设备 600的緩存区大小;
B4、 通过第三网络设备 600回传的计费方法;
B5、 通过第三网络设备 600回传可以到达的网络类型;
B6、 回传链路的可靠性指标。 具体地, B1的回传能力的余量为第三网络设备 600还能额外支持的数据 速率大小; B4的计费方法可以包括免费、 包月计费或按照流量计费; B5的网 络类型可以包括因特网、 电信运营商的核心网、第一网络设备 200或其它专属 网络,也就是说通过第三网络设备 600可以回传数据到因特网、 电信运营商的 核心网、 其它第一网络设备 200或其它专属网络; B6的回传链路的可靠性指 标是指回传路径的中断概率。
具体地, 第一网络设备 200根据网络的信息状态信息、 第二网络设备 400 发送的回传请求和第三网络设备 600发送的剩余回传能力信息获取到的回传 控制信息包括有回传网络拓朴控制信息和物理资源分配信息。该回传网络拓朴 控制信息主要包括至少一条回传路径, 其中, 回传路径主要是第一网络设备 200分配给发送回传请求的第二网络设备 400, 是第二网络设备 400可以用来 进行回传数据的回传路径, 其中, 每条回传路径中包含一跳或多跳连接, 而每 一跳连接表示了两个第二网络设备 400之间,或第二网络设备 400和第三网络 设备 600之间的数据传输通道。相对应地,在物理资源分配信息中包括了每条 回传路径对应的可利用的物理资源, 具体地,是物理资源分配信息中包括了在 每一跳连接上回传数据时,每一跳连接可利用的对应的物理资源, 该物理资源 包含了每一跳连接可使用的时域、 频域、 空域、 码域等。 进一步地, 上述时域 资源具体为系统中的时隙资源集合;频域资源具体为载波信息以及载波内的更 小粒度的频域资源信息, 例如 LTE系统中的 PRB集合; 空域资源可以为预定 义的码本中的某个预编码信息或者对于多个定向波束的选择信息;码域资源可 以为在可用正交 /准正交码集合中的一个或多个的指示信息。 此外, 该物理资 源分配信息还可以指示推荐使用的 MCS信息。 需要说明的是, 在两个第二网 络设备 400之间可以定义多个上述连接,并且多个连接对应的物理资源可以存 在部分相同的情况。
因此,在第二网络设备 400接收到回传控制信息后,在回传控制信息为其 所分配的路径上利用对应的物理资源进行数据回传; 具体地,如果该回传控制 信息针对的是第二网络设备发送的上行回传请求,假设该上行回传主要是由第 二网络设备向第三网络设备回传数据,若回传控制信息中回传网络拓朴控制信 息的回传路径包括多跳,那么第二网络设备将待回传的数据先回传到第一跳的 接收端, 然后再从第一跳的接收端回传到第二跳的接收端, 直到数据回传到第 三网络设备, 其中, 在回传路径的每一跳上回传数据时, 可以利用物理资源分 配信息中分配的物理资源。 最后, 第三网络设备收到从第二网络设备回传的数 据之后, 通过自身具备的回传网络完成回传; 相同地, 如果回传控制信息针对 的是下行回传请求,假设该下行回传主要是由第三网络设备向第二网络设备发 送数据,第三网络设备根据第一网络设备对于接收端第二网络设备发送的回传 控制信息,根据回传控制信息所指示的回传路径,逐跳将数据回传到第二网络 设备。 当然, 如果回传控制信息指示的回传路径不止一条, 则可以将回传数据 拆分到多条回传路径传输, 可以实现更快的回传速度。 本发明实施例还提供一种实现数据回传的方法, 如图 9-a所示, 一种实现 数据回传的方法具体包括:
S9101、 根据信息状态信息、 第二网络设备的回传请求和第三网络设备的 剩余回传能力信息,获取控制所述第二网络设备和所述第三网络设备进行数据 回传的回传控制信息,所述回传控制信息包括回传网络拓朴控制信息和物理资 源分配信息;
该步骤及下面步骤 S9102的执行主体为第一网络设备, 在 LTE网络中, 由第一网络设备进行集中分配回传资源, 实现集中控制,从而提高数据回传的 成功率。 因此, 回传控制信息主要包括回传网络拓朴控制信息和物理资源分配 信息。
由于第二网络设备可以进行上下行回传, 具体地, 当发送回传请求的第二 网络设备作为上行设备时,向第一网络设备发送的回传请求具体可以为上行回 传请求; 当发送回传请求的第二网络设备作为下行设备时, 向第一网络设备发 送的回传请求具体可以为下行回传请求。
S9102、 向所述第二网络设备和第三网络设备发送所述回传控制信息, 以 使得所述第二网络设备和第三网络设备根据所述回传控制信息进行数据回传。
其中,第一网络设备实现集中分配回传资源的方式主要是通过向第二网络 设备和第三网络设备发送回传控制信息,之后, 第二网络设备和第三网络设备 根据回传控制信息进行数据回传。 本发明实施例中,通过第一网络设备向第二网络设备和第三网络设备发送 回传控制信息,以便第二网络设备和第三网络设备能够根据所收到的回传控制 信息进行数据回传, 有效提高数据回传的成功率, 充分利用网络资源。
如图 9-b所示, 本发明实施例还提供一种实现数据回传的方法, 可包括: S9201、 向第一网络设备发送回传请求, 所述回传请求用于向所述第一网 络设备请求回传控制信息, 其中, 所述回传控制信息包括回传网络拓朴控制信 息和物理资源分配信息;
该步骤及下面步骤 S9202和 S9203的执行主体为第二网络设备, 在 LTE 网络中, 由第一网络设备进行集中分配回传资源, 实现集中控制, 从而提高数 据回传的成功率。而第一网络设备集中分配回传资源主要通过向第二网络设备 和第三网络设备发送回传控制信息, 其中, 回传控制信息主要包括回传网络拓 朴控制信息和物理资源分配信息。
由于第二网络设备可以进行上下行回传, 具体地, 当发送回传请求的第二 网络设备作为上行设备时,向第一网络设备发送的回传请求具体可以为上行回 传请求; 当发送回传请求的第二网络设备作为下行设备时, 向第一网络设备发 送的回传请求具体可以为下行回传请求。
S9202、 接收所述第一网络设备广播的回传控制信息, 所述回传控制信息 是所述第一网络设备根据信息状态信息、所述回传请求和第三网络设备发送的 剩余回传能力信息获到;
S9203、 根据所述回传控制信息进行数据回传。
其中, 第二网络设备接收到第一网络设备发送的回传控制信息后,根据回 传控制信息进行数据回传,从而在第一网络设备的集中控制下,有效地进行数 据回传, 提高数据回传的成功率和整个系统的效率。
在本发明实施例中第二网络设备通过接收第一网络设备发送的回传控制 信息, 其中, 回传控制信息主要包括回传网络拓朴控制信息和物理资源分配信 息,实现网络中数据回传的集中管理;之后,根据回传控制信息进行数据回传, 有效利用网络资源, 提升整个回传网络的容量。
如图 9-c所示, 本发明实施例还提供一种实现数据回传的方法, 可包括:
S9301、 向第一网络设备发送剩余回传能力信息, 所述剩余回传能力信息 用于通知所述第一网络设备自身具备的剩余回传能力, 其中, 所述回传控制信 息包括回传网络拓朴控制信息和物理资源分配信息;
该步骤及下面步骤 S9302和 S9303的执行主体为第二网络设备, 在 LTE 网络中, 由第一网络设备进行集中分配回传资源, 实现集中控制, 从而提高数 据回传的成功率。而第一网络设备集中分配回传资源主要通过向第二网络设备 和第三网络设备发送回传控制信息, 其中, 回传控制信息主要包括回传网络拓 朴控制信息和物理资源分配信息。
S9302、 接收所述第一网络设备广播的回传控制信息, 所述回传控制信息 是所述第一网络设备根据信息状态信息、第二网络设备发送的回传请求、所述 剩余回传能力信息获取得到;
由于第二网络设备可以进行上下行回传, 具体地, 当发送回传请求的第二 网络设备作为上行设备时,向第一网络设备发送的回传请求具体可以为上行回 传请求; 当发送回传请求的第二网络设备作为下行设备时, 向第一网络设备发 送的回传请求具体可以为下行回传请求。
S9303 , 根据所述回传控制信息进行数据回传。
其中, 第三网络设备接收到第一网络设备发送的回传控制信息后,根据回 传控制信息进行数据回传,从而在第一网络设备的集中控制下,有效地进行数 据回传, 提高数据回传的成功率和整个系统的效率。
在本发明实施例中第三网络设备通过接收第一网络设备发送的回传控制 信息, 其中, 回传控制信息主要包括回传网络拓朴控制信息和物理资源分配信 息,实现网络中数据回传的集中管理;之后,根据回传控制信息进行数据回传, 有效利用网络资源, 提升整个回传网络的容量。
在 LTE网络中,如上述所介绍的图 8-b所示,具体定义了 3种类型的节点:
D-Node, 是具备较大覆盖能力的宏节点, 它本身具备与核心网连接的能 力;
M-Node, 能够与 D-Node在至少一个载波实现无线通信,并且能够与相邻 M-Node在至少一个载波上实现无线通信;
M-G-Node ( Mesh- Gateway Node ),是 M-Node与 G-Node( Gateway Node ) 的功能组合节点, 其中, G-Node除了通过 D-Node以外, 具备直接与核心网 进行回传的能力。 因此, M-G-Node不仅能够与 D-Node在至少一个载波实现 无线通信, 并且能够与相邻 M-Node在至少一个载波上实现无线通信, 而且还 具备除了通过 D-Node以外直接与核心网进行回传的能力。
其中, D-Node 的覆盖网络中, 包括至少一个 M-Node 和至少一个 M-G-Node。
相应地, 上述实施例所提供的第一网络设备为上述的 D-Node, 第二网络 设备为上述的 M-Node, 第三网络设备为上述 M-G-Node。 优选地, D-Node具 体可以是基站; M-Node和 M-G-Node具体可以是基站, 还可以是能够为其它 终端设备提供接入的 UE或者是自身具备一定回传能力的 UE。
下面以 D-Node、 M-Node和 M-G-Node为基石出, 从实际应用场景促发, 对 图 9-a至图 9-c所提供的实现数据回传的方法作进一步介绍:
其中, 如图 10-a所示, 一种实现数据回传的方法可包括:
S1001、 D-Node向 M-Node和 M-G-Node广播参考信号指示消息, 所述参 考信号指示消息用于指示 M-Node和 M-G-Node 中的一个或多个发送参考信 号, 其它所述 M-Node和 M-G-Node进行信道状态信息测量;
D-Node通过至少一个载波向 M-Node和 M-G-Node发送参考信号指示消 息,用来指示在某个载波上由上述 M-Node和 M-G-Node中的一个或多个发送 参考信号, 而不用发送参考信号的 M-Node和 M-G-Node则进行信道状态信息 测量。
假设 LTE网络中 D-Node覆盖的 M-Node有: 2 A、 2B、 2C和 2D; M-G-Node 有: 3A、 3B、 3C和 3D; 那么上述 M-Node和 M-G-Node中的一个或者多个具 体可以理解为以下情况:
51、 2A、 2B、 2C、 2D、 3A、 3B、 3C和 3D中的任意一个或者多个;
52、 2A、 2B、 2C、 2D中的任意一个或者多个;
S3、 3A、 3B、 3C和 3D中的任意一个或者多个;
S4、 2A、 2B、 2C、 2D中的任意一个或者多个, 以及 3A、 3B、 3C和 3D 中的任意一个或者多个。
若在指示 M-Node和 M-G-Node广播参考信号时,上述参考信号指示消息 还具体指示 M-Node和 M-G-Node在哪些资源上发送参考信号。 可选地, 参考信号可以是 CSI-RS、 CSI-IM等。
51002、 M-Node和 M-G-Node向 D-Node发送根据参考信号指示消息测量 得到的信息状态信息;
其中, M-Node和 M-G-Node接收到 D-Node广播的参考信号指示消息后, 若参考信号指示消息指示自身发送参考信号,那么 M-Node或 M-G-Node将根 据参考信号指示消息所指示的资源发送参考信号;若参考信号指示消息没有自 身发送参考信号, 将根据参考信号指示消息测量 LTE支持的 PMI、 CQL Rank 等反馈量得到信息状态信息, 其中, 可以理解的是, 所测量的反馈量还可以是 其它类型的反馈量,在此不作限定。因此,测量得到的信息状态信息包括 PMI、 CQL Rank等。
可选地, 上述参考信号具体可以包括 CSI-RS和 /或 CSI-IM等。
51003、 M-G-Node向 D-Node发送剩余回传能力信息;
M-G-Node 自身具备回传能力, 由 M-G-Node向 D-Node发送剩余回传能 力信息, 以便 D-Node在分配回传资源时可以参照 M-G-Node的剩余回传能力 信息。
M-Node在发送剩余回传能力信息时不仅仅限于某一个载波, 在网络中存 在多个载波情况下, 可以从多个载波的任一个上发送。
具体地, M-G-Node所发送的剩余回传能力信息可以包括以下一项或多项 内容:
Bl、 M-G-Node的回传能力的余量;
B2、 通过 M-G-Node回传时所经受的延迟大小;
B3、 M-G-Node的緩存区大小;
B4、 通过 M-G-Node回传的计费方法;
B5、 通过 M-G-Node回传可以到达的网络类型;
B6、 回传链路的可靠性指标。
具体地, B1的回传能力的余量为该 M-G-Node还能额外支持的数据速率 大小; B4的计费方法可以包括免费、 包月计费或按照流量计费; B5的网络类 型可以包括因特网、 电信运营商的核心网、 其它 D-Node或其它专属网络, 也 就是说通过该 M-G-Node 回传数据到因特网、 电信运营商的核心网、 其它 D-Node或其它专属网络; B6的回传链路的可靠性指标是指回传路径的中断概 率。
51004、 M-Node向 D-Node发送回传请求;
M-Node能够与 D-Node在至少一个载波实现无线通信, 并且能够与相邻 M-Node在至少一个载波上实现无线通信, 但是其自身并不具备回传能力。 因 此, 在 M-Node需要进行数据回传时, 通过向 M-Node发送回传请求, 以请求 D-Node分配回传资源。
M-Node在发送回传请求时不仅仅限于某一个载波, 在网络中存在多个载 波情况下, 可以从多个载波的任一个发送。
具体地, M-Node发送的回传请求可以包括以下一项或多项内容:
Al、 需要回传的业务总数据量大小;
A2、 可以接受的传输延迟;
A3、 回传业务的优先等级;
A4、 回传业务需要支持的最低速率;
A5、 回传业务的源 /目的网络信息。
可选地, 源 /目的网络信息可以包括源 /目的网络类型信息和源 /目的网络地 址。 网络类型和网络地址可以是通信领域中所涉及的网络类型和网络地址。举 例来说,如果第二网络设备所发送的是一个下行回传请求, 那么源网络类型可 以是互联网,源网络地址可以是互联网的地址,而目的网络类型可以是电信网, 目的网络地址可以是提出回传请求的第二网络设备的网络标识等。如果第二网 络设备发送的是一个上行回传请求, 那么源网络类型可以是电信网, 源网络地 址可以是发送回传请求的第二网络设备的网络标识,目的网络类型为可以是互 联网, 目的网络地址可以是互联网地址。
51005、 D-Node根据 M-Node和 M-G-Node发送的信道状态信息、 M-Node 的回传请求和 M-G-Node的剩余回传能力信息, 获取回传控制信息; 其中, 该 回传控制信息包括回传网络拓朴控制信息和物理资源分配信息;
51006、 D-Node向覆盖网络内的 M-Node和 M-G-Node发送回传控制信息; 其中, D-Node根据 M-Node和 M-G-Node发送的信道状态信息、 M-Node 的回传请求和 M-G-Node的剩余回传能力信息, 获取到回传控制信息, 将回传 控制信息发送给 M-Node和 M-G-Node。
具体地, D-Node可以通过下行 PDCCH、 下行 PBCH或者下行 EPDCCH 等物理信道传输回传控制信息。
S1007、 M-Node和 M-G-Node根据回传控制信息进行数据回传。
其中, 被 D-Node覆盖内的 M-Node和 M-G-Node根据回传控制信息, 在 其中回传网络拓 4卜控制信息和物理资源分配信息所指示的网络拓朴和载波上 进行数据发送或接收。
具体地, 回传控制信息包括有回传网络拓朴控制信息和物理资源分配信 息。 该回传网络拓朴控制信息主要包括至少一条回传路径, 其中, 回传路径主 要是 D-Node分配给发送回传请求的 M-Node, 是 M-Node可以用来进行回传 数据的回传路径, 其中, 每条回传路径中包含一跳或多跳连接, 而每一跳连接 表示了两个 M-Node之间, 或 M-Node和 M-G-Node之间的数据传输通道。 相 对应地, 在物理资源分配信息中包括了每条回传路径对应的可利用的物理资 源, 具体地, 是物理资源分配信息中包括了在每一跳连接上回传数据时, 每一 跳连接可利用的对应的物理资源, 该物理资源包含了每一跳连接可使用的时 域、 频域、 空域、 码域等。 进一步地, 上述时域资源具体为系统中的时隙资源 集合; 频域资源具体为载波信息以及载波内的更小粒度的频域资源信息, 例如 LTE系统中的 PRB集合; 空域资源可以为预定义的码本中的某个预编码信息 或者对于多个定向波束的选择信息; 码域资源可以为在可用正交 /准正交码集 合中的一个或多个的指示信息。此外, 该物理资源分配信息还可以指示推荐使 用的 MCS信息。 需要说明的是,在两个 M-Node之间可以定义多个上述连接, 并且多个连接对应的物理资源可以存在部分相同的情况。
因此, 在 M-Node接收到回传控制信息后, 在回传控制信息为其所分配的 路径上利用对应的物理资源进行数据回传; 具体地,如果该回传控制信息针对 的是 M-Node 发送的上行回传请求, 4 设该上行回传主要是由 M-Node 向 M-G-Node回传数据, 若回传控制信息中回传网络拓朴控制信息的回传路径包 括多跳, 那么 M-Node将待回传的数据先回传到第一跳的接收端, 然后再从第 一跳的接收端回传到第二跳的接收端, 直到数据回传到 M-G-Node, 其中, 在 回传路径的每一跳上回传数据时,可以利用物理资源分配信息中分配的物理资 源。 最后, M-G-Node收到从 M-Node回传的数据之后, 通过自身具备的回传 网络完成回传; 相同地, 如果回传控制信息针对的是下行回传请求, 假设该下 行回传主要是由第 M-G-Node向 M-Node发送数据, M-G-Node根据 D-Node 对于接收端 M-Node发送的回传控制信息,根据回传控制信息所指示的回传路 径, 逐跳将数据回传到 M-Node。 当然, 如果回传控制信息指示的回传路径不 止一条, 则可以将回传数据拆分到多条回传路径传输, 可以实现更快的回传速 度。
需要说明的是, 上述步骤 S1003和 S1004可以在步骤 S1001之前或之后 执行, 还可以和步骤 S1001 交叉执行, 在此不作限定。 当然, 步骤 S1001和 S1002 可以重复执行, 以便实现 M-Node 能够测量到周边的 M-Node 或 M-G-Node的信道状态信息,并发送给 D-Node;或者 M-G-Node能够测量到周 边的 M-Node或 M-G-Node的信道状态信息, 并发送给 D-Node。
可以理解的是, 上述步骤 S1001和 S1002为 D-Node获取其覆盖网络中 M-Node和 M-G-Node的信息状态信息, 当然, 除了步骤 S1001和 S1002所提 供的获取方式之外, 在不需要 D-Node发送用于信息状态信息测量的参考信号 指示消息的情况下, 由 M-Node和 M-G-Node根据其它参考信号资源, 例如 CRS 或 DMRS 进行测量得到信息状态信息, 然后将信息状态信息发送给 D-Node。 如图 10-b所示, 一种实现数据回传的方法主要包括:
S1011、 M-Node向 D-Node发送回传请求;
M-Node能够与 D-Node在至少一个载波实现无线通信, 并且能够与相邻
M-Node在至少一个载波上实现无线通信, 但是其自身并不具备回传能力。 因 此, 在 M-Node需要进行数据回传时, 通过向 M-Node发送回传请求, 以请求 D-Node分配回传资源。
M-Node在发送回传请求时不仅仅限于某一个载波, 在网络中存在多个载 波情况下, 可以从多个载波的任一个发送。
可选地, M-Node发送的回传请求可以包括以下至少一项或多项内容:
Al、 需要回传的业务总数据量大小;
A2、 可以接受的传输延迟;
A3、 回传业务的优先等级; A4、 回传业务需要支持的最低速率;
A5、 回传业务的源 /目的网络信息。
可选地, 源 /目的网络信息可以包括源 /目的网络类型信息和源 /目的网络地 址。 网络类型和网络地址可以是通信领域中所涉及的网络类型和网络地址。举 例来说,如果第二网络设备所发送的是一个下行回传请求, 那么源网络类型可 以是互联网,源网络地址可以是互联网的地址,而目的网络类型可以是电信网, 目的网络地址可以是提出回传请求的第二网络设备的网络标识等。如果第二网 络设备发送的是一个上行回传请求, 那么源网络类型可以是电信网, 源网络地 址可以是发送回传请求的第二网络设备的网络标识,目的网络类型为可以是互 联网, 目的网络地址可以是互联网地址。
51012、 M-G-Node向 D-Node发送剩余回传能力信息;
M-G-Node 自身具备回传能力, 由 M-G-Node向 D-Node发送剩余回传能 力信息,以便 D-Node在分配回传资源时可以参照 M-G-Node的剩余回传能力。
51013、 M-Node和 M-G-Node根据参考信号资源测量信息状态信息; 在不需要 D-Node发送参考信号指示消息指示是否测量信息状态信息的情 况下, M-Node和 M-G-Node可以根据网络中的参考信号资源, 例如 LTE网络 中提供的 CRS或 DMRS, 测量网络中的信息状态信息。
51014、 M-Node和 M-G-Node向 D-Node发送测量所得的信息状态信息; 可以理解的是, 本发明实施例中 M-Node和 M-G-Node向 D-Node所发送 的信息状态信息也主要包括有 PMI、 CQL Rank等信息。
51015、 D-Node向 M-Node和 M-G-Node发送回传控制信息, 所述回传控 制信息包括回传网络拓朴控制信息和物理资源分配信息;
D-Node根据 M-Node和 M-G-Node发送的信道状态信息、 M-Node的回传 请求和 M-G-Node的剩余回传能力信息, 获取到回传控制信息, 将回传控制信 息发送给 M-Node和 M-G-Node。
51016、 M-Node和 M-G-Node根据回传控制信息进行数据回传。
M-Node和 M-G-Node根据回传控制信息中的回传网络拓朴控制信息和物 理资源分配信息所指示的网络拓朴和载波上进行数据发送或接收。
需要说明的是, 上述步骤 S1011、 S1012、 S1013和 S1014的执行顺序不 作要求, 可以交叉执行, 在此不作限定。
D-Node还可以直接获取网络中信息状态信息, 具体如图 10-c所示, 一种 实现数据回传的方法主要包括:
S1021、 M-Node向 D-Node发送回传请求;
M-Node能够与 D-Node在至少一个载波实现无线通信, 并且能够与相邻
M-Node在至少一个载波上实现无线通信, 但是其自身并不具备回传能力。 因 此, 在 M-Node需要进行数据回传时, 通过向 M-Node发送回传请求, 以请求 D-Node分配回传资源。
M-Node在发送回传请求时不仅仅限于某一个载波, 在网络中存在多个载 波情况下, 可以从多个载波上发送。
可选地, M-Node发送的回传请求可以包括以下至少一项或多项内容: Al、 需要回传的业务总数据量大小;
A2、 可以接受的传输延迟;
A3、 回传业务的优先等级;
A4、 回传业务需要支持的最低速率;
A5、 回传业务的源 /目的网络信息。
可选地, 源 /目的网络信息可以包括源 /目的网络类型信息和源 /目的网络地 址。 网络类型和网络地址可以是通信领域中所涉及的网络类型和网络地址。举 例来说,如果第二网络设备所发送的是一个下行回传请求, 那么源网络类型可 以是互联网,源网络地址可以是互联网的地址,而目的网络类型可以是电信网, 目的网络地址可以是提出回传请求的第二网络设备的网络标识等。如果第二网 络设备发送的是一个上行回传请求, 那么源网络类型可以是电信网, 源网络地 址可以是发送回传请求的第二网络设备的网络标识,目的网络类型为可以是互 联网, 目的网络地址可以是互联网地址。
S1022、 M-G-Node向 D-Node发送剩余回传能力信息;
M-G-Node 自身具备回传能力, 由 M-G-Node向 D-Node发送剩余回传能 力信息, 以便 D-Node在分配回传资源时可以参照 M-G-Node的回传能力。
M-Node在发送剩余回传能力信息时不仅仅限于某一个载波, 在网络中存 在多个载波情况下, 可以从多个载波的任一个上发送。 具体地, M-G-Node所发送的剩余回传能力信息可以包括以下一项或多项 内容:
Bl、 M-G-Node的回传能力的余量;
B2、 通过 M-G-Node回传时所经受的延迟大小;
B3、 M-G-Node的緩存区大小;
B4、 通过 M-G-Node回传的计费方法;
B5、 通过 M-G-Node回传可以到达的网络类型;
B6、 回传链路的可靠性指标。
具体地, B1的回传能力的余量为该 M-G-Node还能额外支持的数据速率 大小; B4的计费方法可以包括免费、 包月计费或按照流量计费; B5的网络类 型可以包括因特网、 电信运营商的核心网、 其它 D-Node或其它专属网络, 也 就是说通过该 M-G-Node 回传数据到因特网、 电信运营商的核心网、 其它 D-Node或其它专属网络; B6的回传链路的可靠性指标是指回传路径的中断概 率。
S1023、 D-Node从第三方数据库的数据库中获取信息状态信息; 本发明实施例中,无需 M-Node和 M-G-Node测量信息状态信息, D-Node 可以从第三方数据库中获取到。该第三方数据库是指上述通过测量、反馈等其 它方式得到的信道状态信息数据库。例如,通过已知的地理位置信息按照数学 模型生成的信道状态信息的数据库,或者通过用其它设备测量并将测量结果保 存而形成的数据库。
51024、 D-Node向 M-Node和 M-G-Node发送回传控制信息, 所述回传控 制信息包括回传网络拓朴控制信息和物理资源分配信息;
D-Node根据 M-Node和 M-G-Node发送的信道状态信息、 M-Node的回传 请求和 M-G-Node的剩余回传能力信息, 获取到回传控制信息, 将回传控制信 息发送给 M-Node和 M-G-Node。
51025、 M-Node和 M-G-Node根据回传控制信息进行数据回传。
M-Node和 M-G-Node根据回传控制信息中的回传网络拓朴控制信息和物 理资源分配信息所指示的网络拓朴和载波上进行数据发送或接收。
需要说明的是, 上述步骤 S1021、 S1022和 S1023的执行顺序不作要求, 可以交叉执行, 在此不作限定。
当然, 除了本发明实施例所提供的 D-Node获取其覆盖网络中 M-Node和 M-G-Node 的信道状态信息的方法之外, 其它能够实现获取 M-Node 和 M-G-Node的信道状态信息的方法均在本发明的保护范围之内,在此不作限定。
如图 11所示, 本发明实施例还提供一种实现数据回传的设备, 可包括: 存储器 1110和至少一个处理器 1120 (图 11中以一个处理器为例)。 本发明实 施例的一些实施例中,存储器 1110和处理器 1120可通过总线或其它方式连接, 其中, 图 11以通过总线连接为例。
在本发明一些实施例中, 上述处理器 1120可以执行以下步骤:
根据信息状态信息、第二网络设备的回传请求和第三网络设备的剩余回传 能力信息,获取控制第二网络设备和第三网络设备进行数据回传的回传控制信 息, 所述回传控制信息包括回传网络拓朴控制信息和物理资源分配信息; 向所 述第二网络设备和第三网络设备发送所述回传控制信息,以使得所述第二网络 设备和第三网络设备根据所述回传控制信息进行数据回传。
或者
向第一网络设备发送回传请求,所述回传请求用于向所述第一网络设备请 求回传控制信息, 其中, 所述回传控制信息包括回传网络拓朴控制信息和物理 资源分配信息;接收所述第一网络设备广播的回传控制信息, 所述回传控制信 息是所述第一网络设备根据信息状态信息、所述回传请求和第三网络设备发送 的剩余回传能力信息获取得到; 根据所述回传控制信息进行数据回传;
向第一网络设备发送剩余回传能力信息,所述剩余回传能力信息用于通知 所述第一网络设备自身具备的剩余回传能力, 其中, 所述回传控制信息包括回 传网络拓朴控制信息和物理资源分配信息;接收所述第一网络设备广播的回传 控制信息, 所述回传控制信息是所述第一网络设备根据信息状态信息、第二网 络设备发送的回传请求、所述剩余回传能力信息获取得到; 根据所述回传控制 信息进行数据回传。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 向所述第二网络设备和第三网络设备广播参考信号指示消息,所述参考信 号指示消息用于指示第二网络设备和第三网络设备中的一个或多个网络设备 用于发送参考信号, 而其它网络设备用于测量信息状态信息。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 接收所述第二网络设备和第三网络设备发送的信息状态信息,所述信息状 态信息是所述第二网络设备和第三网络设备根据所述参考信号指示消息测量 得到,所述信息状态信息包括预编码矩阵指示 PMI、信道质量指示 CQI和 Rank。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 通过第三方数据库获取所述信息状态信息。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 接收所述第二网络设备和第三网络设备发送的信息状态信息,所述信息状 态信息是所述第二网络设备和第三网络设备根据参考信号资源测量得到,所述 参考信号资源包括公共参考信号 CRS和解调参考信号 DMRS。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 接收所述第二网络设备发送的回传请求,所述回传请求包括需要回传的业 务总数据量的大小、 允许的传输延迟、 回传业务的优先等级、 回传业务需要支 持的最低速率和回传业务的源 /目的网络信息中的至少一项。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 接收所述第三网络设备发送的剩余回传能力信息,所述剩余回传能力信息 包括回传能力的余量、回传所经受的延迟大小、緩存区大小、回传的计费方法、 回传到达的网络类型和回传链路的可靠性指标中的至少一项。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 所述第二网络设备在所述回传网络拓朴控制信息所包括的回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回传;所述第三网络设 备根据所述回传控制信息, 利用自身回传能力进行数据回传。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 接收所述第一网络设备广播的参考信号指示消息,所述参考信号指示消息 用于指示发送参考信号或进行信息状态信息测量。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 若接收到的所述参考信号指示消息指示自身发送参考信号,则根据所述参 考信号指示消息发送参考信号;
若接收到的所述参考信号指示消息指示进行信息状态信息测量,则根据所 述参考信号指示消息的指示测量反馈量预编码矩阵指示 PMI、 信道质量指示 CQI和 Rank得到信道状态信息,并向所述第一网络设备测量的信息状态信息, 其中, 所述信息状态信息包括反馈量 PMI、 CQI和 Rank。
在本发明一些实施例中, 上述处理器 1120还可以执行以下步骤: 所述第二网络设备在所述回传网络拓朴控制信息所包括的回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回传;所述第三网络设 备根据所述回传控制信息, 利用自身回传能力进行数据回传。
在本发明一些实施例中, 上述存储器 1110可以用于存储: 回传控制信息、 信息状态信息、 回传请求和剩余回传能力信息。
在本发明一些实施例中, 上述存储器 1110还可以用于存储: 参考信号指 示消息。
在本发明一些实施例中, 上述存储器 1110还可以用于存储: 回传网络拓 朴控制信息和物理资源分配信息。
在本发明一些实施例中, 上述存储器 1110还可以用于存储: 参考信号资 源。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤 是可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可 读存储介质中, 上述提到的存储介质可以是只读存储器, 磁盘或光盘等。
以上对本发明所提供的网络设备和一种实现数据回传的系统及方法 进行了详细介绍, 对于本领域的一般技术人员, 依据本发明实施例的思想, 在 具体实施方式及应用范围上均会有改变之处, 综上所述, 本说明书内容不应理 解为对本发明的限制。

Claims

权 利 要 求
1、 一种网络设备, 其特征 ^于, 栝:
获取模块, 用于根据信息状态信息、第二网络设备的回传请求和第三网络 设备的剩余回传能力信息,获取控制所述第二网络设备和第三网络设备进行数 据回传的回传控制信息,所述回传控制信息包括回传网络拓朴控制信息和物理 资源分配信息;
广播模块,用于向所述第二网络设备和第三网络设备广播所述回传控制信 息,以使得所述第二网络设备和第三网络设备根据所述回传控制信息进行数据 回传。
2、根据权利要求 1所述的网络设备, 其特征在于, 所述网络设备还包括: 第一广播模块,用于向所述第二网络设备和第三网络设备广播参考信号指 示消息,所述参考信号指示消息用于指示所述第二网络设备和第三网络设备中 的一个或多个网络设备用于发送参考信号,而其它网络设备用于信息状态信息 测量。
3、根据权利要求 2所述的网络设备, 其特征在于, 所述网络设备还包括: 第一接收模块,用于接收所述第二网络设备和第三网络设备发送的信息状 态信息,所述信息状态信息是所述第二网络设备和第三网络设备根据所述参考 信号指示消息测量得到, 所述信息状态信息包括预编码矩阵指示反馈量 PMI、 信道质量指示 CQI和秩 Rank。
4、根据权利要求 1所述的网络设备, 其特征在于, 所述网络设备还包括: 第二获取模块, 用于通过第三方数据库获取所述信息状态信息。
5、根据权利要求 1所述的网络设备, 其特征在于, 所述网络设备还包括: 第二接收模块,用于接收所述第二网络设备和第三网络设备发送的信息状 态信息,所述信息状态信息是所述第二网络设备和第三网络设备根据参考信号 测量得到。
6、 根据权利要求 1~5任一项所述的网络设备, 其特征在于, 所述网络设 备还包括:
第三接收模块, 用于接收所述第二网络设备发送的回传请求, 所述回传请 求包括需要回传的业务总数据量的大小、允许的传输延迟、 回传业务的优先等 级、 回传业务需要支持的最低速率和回传业务的源 /目的网络信息中的至少一 项。
7、 根据权利要求 1~6任一项所述的网络设备, 其特征在于, 所述网络设 备还包括:
第四接收模块, 用于接收所述第三网络设备发送的剩余回传能力信息, 所 述剩余回传能力信息包括回传能力的余量、 回传所经受的延迟大小、緩存区大 小、 回传的计费方法、 回传到达的网络类型和回传链路的可靠性指标中的至少 一项。
8、 根据权利要求 1~7任一项所述的网络设备, 其特征在于, 所述回传控 制信息中的回传网络拓朴控制信息包括至少一条回传路径,所述回传路径分配 给发送回传请求的第二网络设备;所述回传控制信息中的物理资源分配信息包 括在使用上述回传网络拓朴控制信息所包括的回传路径时,所述回传路径可利 用的对应物理资源;
进而所述广播模块具体用于向所述第二网络设备和第三网络设备发送所 述回传控制信息,以使得所述第二网络设备在所述回传网络拓朴控制信息所包 括的回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回 传; 以使得所述第三网络设备在接收到所述回传控制信息后,根据所述回传控 制信息, 利用自身回传能力进行数据回传。
9、 一种网络设备, 其特征在于, 包括:
请求发送模块, 用于向第一网络设备发送回传请求, 所述回传请求用于向 所述第一网络设备请求回传控制信息, 其中, 所述回传控制信息包括回传网络 拓朴控制信息和物理资源分配信息;
第一信息接收模块, 用于接收所述第一网络设备广播的回传控制信息, 所 述回传控制信息是所述第一网络设备根据信息状态信息、所述回传请求和第三 网络设备发送的剩余回传能力信息获取得到;
第一数据回传模块, 用于根据所述回传控制信息进行数据回传。
10、根据权利要求 9所述的网络设备,其特征在于,所述网络设备还包括: 第五接收模块, 用于接收所述第一网络设备广播的参考信号指示消息, 所 述参考信号指示消息用于指示发送参考信号或进行信息状态信息测量。
11、 根据权利要求 10所述的网络设备, 其特征在于, 当所述第五接收模 块所接收的参考信号指示消息指示发送参考信号时, 所述网络设备还包括: 第一发送模块, 用于根据所述参考信号指示消息发送参考信号;
当所述第五接收模块所接收的参考信号指示消息指示进行信息状态信息 测量时, 所述网络设备还包括:
第一测量模块,用于根据所述参考信号指示消息的指示测量反馈量预编码 矩阵指示 PMI、 信道质量指示 CQI和秩 Rank得到信道状态信息; 其中, 所述 信息状态信息包括反馈量 PMI、 CQI和 Rank;
第二发送模块, 用于向所述第一网络设备发送所述信息状态信息。
12、根据权利要求 9所述的网络设备,其特征在于,所述网络设备还包括: 第二测量模块, 用于根据参考信号资源测量信息状态信息; 所述参考信号 资源包括公共参考信号 CRS和解调参考信号 DMRS;
第三发送模块,用于向所述第一网络设备发送所述第二测量模块测量得到 的信息状态信息。
13、 根据权利要求 9~12任一项所述的网络设备, 其特征在于, 所述回传 请求包括需要回传的业务总数据量的大小、允许的传输延迟、 回传业务的优先 等级、 回传业务需要支持的最低速率和回传业务的源 /目的网络信息中的至少 一项。
14、 根据权利要求 9~13任一项所述的网络设备, 其特征在于, 所述回传 控制信息中的回传网络拓朴控制信息包括至少一条回传路径,所述回传路径分 配给发送回传请求的第二网络设备;所述回传控制信息中的物理资源分配信息 包括在使用上述回传网络拓朴控制信息所包括的回传路径时,所述回传路径可 利用的对应物理资源;
进而所述第一数据回传模块具体用于在所述回传网络拓朴控制信息所包 括的回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回 传。
15、 一种网络设备, 其特征在于, 包括:
回传能力发送模块, 用于向第一网络设备发送剩余回传能力信息, 所述剩 余回传能力信息包括根据自身回传能力进行数据回传后所剩余的回传能力的 信息;
第二信息接收模块, 用于接收所述第一网络设备广播的回传控制信息, 所述回传控制信息是所述第一网络设备根据信息状态信息、第二网络设备发送 的回传请求、 所述剩余回传能力信息获取得到, 其中, 所述回传控制信息包括 回传网络拓朴控制信息和物理资源分配信息;
第三数据回传模块, 用于根据所述回传控制信息进行数据回传。
16、 根据权利要求 15所述的网络设备, 其特征在于, 所述网络设备还包 括:
第六接收模块, 用于接收所述第一网络设备广播的参考信号指示消息, 所 述参考信号指示消息用于指示发送参考信号或进行信息状态信息测量。
17、 根据权利要求 16所述的网络设备, 其特征在于,
当所述第六接收模块所接收的参考信号指示消息指示发送参考信号时,所 述网络设备还包括:
第五发送模块, 用于根据所述参考信号指示消息发送参考信号; 当所述第六接收模块所接收的参考信号指示消息指示进行信息状态信息 测量时, 所述网络设备还包括:
第三测量模块,用于根据所述参考信号指示消息的指示测量反馈量预编码 矩阵指示 PMI、 信道质量指示 CQI和秩 Rank得到信道状态信息, 其中, 所述 信息状态信息包括反馈量 PMI、 CQI和 Rank;
第六发送模块, 用于向所述第一网络设备发送所述信息状态信息。
18、 根据权利要求 15所述的网络设备, 其特征在于, 所述网络设备还包 括:
第四测量模块, 用于根据参考信号资源测量信息状态信息; 所述参考信号 包括公共参考信号 CRS和解调参考信号 DMRS;
第七发送模块,用于向所述第一网络设备发送所述第四测量模块测量得到 的信息状态信息。
19、根据权利要求 15~18任一项所述的网络设备, 其特征在于, 所述剩余 回传能力信息包括回传能力的余量、 回传所经受的延迟大小、 緩存区大小、 回 传的计费方法、 回传到达的网络类型和回传链路的可靠性指标中的至少一项。
20、 一种实现数据回传的系统, 其特征在于, 包括: 第一网络设备、 第二 网络设备和第三网络设备;
其中, 所述第一网络设备用于根据信息状态信息、第二网络设备的回传请 求和第三网络设备的剩余回传能力信息,获取控制所述第二网络设备和第三网 络设备进行数据回传的回传控制信息;并向所述第二网络设备和第三网络设备 广播所述回传控制信息,以使得所述第二网络设备和第三网络设备根据所述回 传控制信息进行数据回传;
所述第二网络设备用于向所述第一网络设备发送回传请求,所述回传请求 用于向所述第一网络设备请求回传控制信息;接收所述第一网络设备广播的所 述回传控制信息, 并根据所述回传控制信息进行数据回传;
所述第三网络设备用于向所述第一网络设备发送剩余回传能力信息,所述 剩余回传能力信息包括根据自身回传能力进行数据回传后所剩余的回传能力 的信息;接收所述第一网络设备发送的回传控制信息, 并根据所述回传控制信 息进行数据回传;
其中, 所述回传控制信息包括回传网络拓朴控制信息和物理资源分配信 息。
21、 根据权利要求 20所述的系统, 其特征在于,
所述第一网络设备,还用于向所述第二网络设备和第三网络设备广播参考 信号指示消息,所述参考信号指示消息用于指示第二网络设备和第三网络设备 中的一个或多个网络设备用于发送参考信号,而其它网络设备用于信息状态信 息测量。
22、 根据权利要求 21所述的系统, 其特征在于,
所述第一网络设备,还用于接收所述第二网络设备和第三网络设备发送的 信息状态信息,所述信息状态信息是所述第二网络设备和第三网络设备根据参 考信号指示消息测量得到; 所述信息状态信息包括预编码矩阵指示反馈量 PML 信道质量指示 CQI和 Rank。
23、 根据权利要求 20所述的系统, 其特征在于,
所述第一网络设备, 还用于通过第三方数据库获取信息状态信息。
24、 根据权利要求 20所述的系统, 其特征在于, 所述第一网络设备,还用于接收所述第二网络设备和第三网络设备发送的 信息状态信息,所述信息状态信息是所述第二网络设备和第三网络设备根据参 考信号资源测量得到, 所述参考信号资源包括公共参考信号 CRS和解调参考 信号 DMRS。
25、 根据权利要求 20~24任一项所述的系统, 其特征在于,
所述第一网络设备,还用于接收所述第二网络设备发送的回传请求, 所述 回传请求包括需要回传的业务总数据量的大小、允许的传输延迟、 回传业务的 优先等级、 回传业务需要支持的最低速率和回传业务的源 /目的网络信息中的 至少一项。
26、 根据权利要求 20~25任一项所述的系统, 其特征在于,
所述第一网络设备,还用于接收所述第三网络设备发送的剩余回传能力信 息, 所述剩余回传能力信息包括回传能力的余量、 回传所经受的延迟大小、 緩 存区大小、 回传的计费方法、 回传到达的网络类型和回传链路的可靠性指标中 的至少一项。
27、 根据权利要求 20~26任一项所述的系统, 其特征在于,
所述回传控制信息中的回传网络拓朴控制信息包括至少一条回传路径,所 述回传路径分配给发送回传请求的第二网络设备;所述回传控制信息中的物理 资源分配信息包括在使用上述回传网络拓朴控制信息所包括的回传路径时,所 述回传路径可利用的对应物理资源;
进而所述第二网络设备,具体用于在所述回传网络拓朴控制信息所包括的 回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回传。
28、 一种实现数据回传的方法, 其特征在于, 包括:
根据信息状态信息、第二网络设备的回传请求和第三网络设备的剩余回传 能力信息,获取控制所述第二网络设备和所述第三网络设备进行数据回传的回 传控制信息,所述回传控制信息包括回传网络拓朴控制信息和物理资源分配信 息;
向所述第二网络设备和第三网络设备发送所述回传控制信息,以使得所述 第二网络设备和第三网络设备根据所述回传控制信息进行数据回传。
29、 根据权利要求 28所述的方法, 其特征在于, 所述获取控制所述第二 网络设备和所述第三网络设备进行数据回传的回传控制信息之前包括步骤: 向所述第二网络设备和第三网络设备广播参考信号指示消息,所述参考信 号指示消息用于指示第二网络设备和第三网络设备中的一个或多个网络设备 用于发送参考信号, 而其它网络设备用于测量信息状态信息。
30、 根据权利要求 29所述的方法, 其特征在于, 所述向所述第二网络设 备和第三网络设备广播参考信号指示消息之后包括步骤:
接收所述第二网络设备和第三网络设备发送的信息状态信息,所述信息状 态信息是所述第二网络设备和第三网络设备根据所述参考信号指示消息测量 得到, 所述信息状态信息包括预编码矩阵指示 PMI、 信道质量指示 CQI和秩 Rank。
31、 根据权利要求 28所述的方法, 其特征在于, 所述获取控制所述第二 网络设备和所述第三网络设备进行数据回传的回传控制信息之前包括步骤: 通过第三方数据库获取所述信息状态信息。
32、 根据权利要求 28所述的方法, 其特征在于, 所述获取控制所述第二 网络设备和所述第三网络设备进行数据回传的回传控制信息之前包括步骤: 接收所述第二网络设备和第三网络设备发送的信息状态信息,所述信息状 态信息是所述第二网络设备和第三网络设备根据参考信号资源测量得到,所述 参考信号资源包括公共参考信号 CRS和解调参考信号 DMRS。
33、根据权利要求 28~32任一项所述的方法, 其特征在于, 所述获取控制 第二网络设备和第三网络设备进行数据回传的回传控制信息之前包括步骤: 接收所述第二网络设备发送的回传请求,所述回传请求包括需要回传的业 务总数据量的大小、 允许的传输延迟、 回传业务的优先等级、 回传业务需要支 持的最低速率和回传业务的源 /目的网络信息中的至少一项。
34、根据权利要求 28~33任一项所述的方法, 其特征在于, 所述获取控制 第二网络设备和第三网络设备进行数据回传的回传控制信息之前包括步骤: 接收所述第三网络设备发送的剩余回传能力信息,所述剩余回传能力信息 包括回传能力的余量、回传所经受的延迟大小、緩存区大小、回传的计费方法、 回传到达的网络类型和回传链路的可靠性指标中的至少一项。
35、 根据权利要求 28~34所述的方法, 其特征在于, 所述回传控制信息 中的回传网络拓朴控制信息包括至少一条回传路径,所述回传路径分配给发送 回传请求的第二网络设备;所述回传控制信息中的物理资源分配信息包括在使 用上述回传网络拓朴控制信息所包括的回传路径时,所述回传路径可利用的对 应物理资源;
进而所述第二网络设备和第三网络设备根据所述回传控制信息进行数据 回传, 包括:
所述第二网络设备在所述回传网络拓朴控制信息所包括的回传路径上, 利用所述物理资源分配信息所指示的物理资源进行数据回传;所述第三网络设 备根据所述回传控制信息, 利用自身回传能力进行数据回传。
36、 一种实现数据回传的方法, 其特征在于, 包括:
向第一网络设备发送回传请求,所述回传请求用于向所述第一网络设备请 求回传控制信息, 其中, 所述回传控制信息包括回传网络拓朴控制信息和物理 资源分配信息;
接收所述第一网络设备广播的回传控制信息,所述回传控制信息是所述第 一网络设备根据信息状态信息、所述回传请求和第三网络设备发送的剩余回传 能力信息获取得到;
根据所述回传控制信 , 进行数据回传。
37、 根据权利要求 36所述的方法, 其特征在于, 所述接收第一网络设备 广播的回传控制信息之前包括:
接收所述第一网络设备广播的参考信号指示消息,所述参考信号指示消息 用于指示发送参考信号或进行信息状态信息测量。
38、 根据权利要求 37所述的方法, 其特征在于, 所述接收所述第一网络 设备广播的参考信号指示消息之后包括:
若接收到的所述参考信号指示消息指示自身发送参考信号,则根据所述参 考信号指示消息发送参考信号;
若接收到的所述参考信号指示消息指示进行信息状态信息测量,则根据所 述参考信号指示消息的指示测量反馈量预编码矩阵指示 PMI、 信道质量指示 CQI和秩 Rank得到信道状态信息, 并向所述第一网络设备测量的信息状态信 息, 其中, 所述信息状态信息包括反馈量 PMI、 CQI和 Rank。
39、 根据权利要求 36所述的方法, 其特征在于, 所述接收第一网络设备 广播的回传控制信息之前包括:
根据参考信号资源测量信息状态信息,并向所述第一网络设备发送所述信 息状态信息, 所述参考信号资源包括公共参考信号 CRS 和解调参考信号 DMRS。
40、根据权利要求 36~39任一项所述的方法, 其特征在于, 所述回传请求 包括需要回传的业务总数据量的大小、允许的传输延迟、回传业务的优先等级、 回传业务需要支持的最低速率和回传业务的源 /目的网络信息中的至少一项。
41、 根据权利要求 36~40任一项所述的方法, 其特征在于,
所述回传控制信息中的回传网络拓朴控制信息包括至少一条回传路径,所 述回传路径分配给发送回传请求的第二网络设备;所述回传控制信息中的物理 资源分配信息包括在使用上述回传网络拓朴控制信息所包括的回传路径时,所 述回传路径可利用的对应物理资源;
进而所述根据所述回传控制信息进行数据回传包括:
在所述回传网络拓朴控制信息所包括的回传路径上, 利用所述物理资源 分配信息所指示的物理资源进行数据回传。
42、 一种实现数据回传的方法, 其特征在于, 包括:
向第一网络设备发送剩余回传能力信息,所述剩余回传能力信息用于通知 所述第一网络设备自身具备的剩余回传能力, 其中, 所述回传控制信息包括回 传网络拓 4卜控制信息和物理资源分配信息;
接收所述第一网络设备广播的回传控制信息,所述回传控制信息是所述第 一网络设备根据信息状态信息、第二网络设备发送的回传请求、所述剩余回传 能力信息获取得到;
根据所述回传控制信 , 进行数据回传。
43、 根据权利要求 42所述的方法, 其特征在于, 所述接收所述第一网络 设备广播的回传控制信息之前包括:
接收所述第一网络设备广播的参考信号指示消息,所述参考信号指示消息 用于指示发送参考信号或进行信息状态信息测量。
44、 根据权利要求 43所述的方法, 其特征在于, 在所述接收所述第一网 络设备广播的参考信号指示消息之后包括:
若接收到的所述参考信号指示消息指示自身发送参考信号,则根据所述参 考信号指示消息发送参考信号;
若接收到的所述参考信号指示消息指示进行信息状态信息测量,则根据所 述参考信号指示消息的指示测量反馈量预编码矩阵指示 PMI、 信道质量指示 CQI和秩 Rank得到信道状态信息, 并向所述第一网络设备测量的信息状态信 息, 其中, 所述信息状态信息包括反馈量 PMI、 CQI和 Rank。
45、 根据权利要求 42所述的方法, 其特征在于, 所述接收所述第一网络 设备广播的回传控制信息之前包括:
根据参考信号资源测量信息状态信息,并向所述第一网络设备发送所述信 息状态信息, 所述参考信号资源包括公共参考信号 CRS 和解调参考信号 DMRS。
46、根据权利要求 42~45任一项所述的方法, 其特征在于, 所述剩余回传 能力信息包括回传能力的余量、 回传所经受的延迟大小、 緩存区大小、 回传的 计费方法、 回传到达的网络类型和回传链路的可靠性指标中的至少一项。
PCT/CN2014/072558 2014-02-26 2014-02-26 网络设备和一种实现数据回传的系统及方法 Ceased WO2015127598A1 (zh)

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