WO2014044058A1 - 数据传输方法及系统、宏基站、小基站与用户设备 - Google Patents

数据传输方法及系统、宏基站、小基站与用户设备 Download PDF

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Publication number
WO2014044058A1
WO2014044058A1 PCT/CN2013/076461 CN2013076461W WO2014044058A1 WO 2014044058 A1 WO2014044058 A1 WO 2014044058A1 CN 2013076461 W CN2013076461 W CN 2013076461W WO 2014044058 A1 WO2014044058 A1 WO 2014044058A1
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Prior art keywords
base station
user equipment
control information
physical layer
data channel
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PCT/CN2013/076461
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English (en)
French (fr)
Inventor
范伟
戎璐
卢磊
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华为技术有限公司
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Publication of WO2014044058A1 publication Critical patent/WO2014044058A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a data transmission method and system, a macro base station, a small base station, and a user equipment. Background technique
  • the requirements of the user equipment are mainly voice calls and short messages, and the spectrum efficiency requirements are not high.
  • the system is mainly subject to the size of the coverage area, so the macrocell networking is generally adopted. In this way, the distance between base stations is generally large, and the cost of this networking mode is low.
  • third- and fourth-generation communication systems data transmission has become a new requirement of UEs, especially for real-time video transmission.
  • the requirements for spectrum efficiency and network throughput have increased significantly, but due to the large coverage of macro cells. The number of UEs accommodated is limited, so the throughput of the macro cell is limited.
  • the signal-to-noise ratio (SNR) is low, it can only meet the basic service requirements, but cannot satisfy the data. Rate requirement. It can be seen that the existing macro base station networking mode cannot meet the requirements of data transmission.
  • the above-mentioned shortcomings can be used to reduce the cell radius, and the macro cell is effectively supplemented by the micro cell to improve the system throughput to improve the SNR of the cell edge UE.
  • the macro cell and the micro cell are independent networks, and the macro base station and the small base station independently pass through the network side functional entity and the network.
  • the side interacts.
  • the small base station and the macro base station and the small base station simultaneously perform data transmission with the same UE served, and the small base station causes the data transmitted by the UE and the small base station, and the UE and the Acer base.
  • the data transmitted by the station interferes with each other and affects each other, resulting in low efficiency for the UE to transmit data.
  • Embodiments of the present invention provide a data transmission method and system, a macro base station, a small base station, and a user equipment, which are used to solve data transmission between a UE and a small base station and transmission by a UE and a macro base station in the prior art.
  • the data interferes with each other and affect each other, resulting in a defect that the UE transmits data less efficiently, and can provide a data transmission scheme with high data transmission efficiency.
  • an embodiment of the present invention provides a data transmission method, including:
  • the macro base station When the user equipment needs to perform data transmission, the macro base station sends control information of the physical layer data channel to the user equipment;
  • the macro base station and the small base station accessed by the user equipment perform data transmission of the user equipment, where data of the user equipment is data that is transmitted by the user equipment according to control information of the physical layer data channel;
  • the small base station can acquire control information of the physical layer data channel sent by the macro base station to the user equipment.
  • the performing, by the macro base station, the data transmission of the user equipment by the small base station that is accessed by the user equipment includes:
  • the user equipment sends downlink data of the user equipment, so that the user equipment can receive downlink data of the user equipment according to control information of the physical layer data channel.
  • the performing, by the macro base station, the data transmission of the user equipment by the small base station that is accessed by the user equipment includes:
  • the macro base station receives the uplink data of the user equipment that is sent by the small base station, and the uplink data of the user equipment is sent by the user equipment to the small base station according to the control information of the physical layer data channel.
  • control information of the physical layer data channel includes at least one of the following:
  • a time-frequency resource location at which the user equipment transmits data of the user equipment a transmission mode, a modulation mode, and a code rate used to transmit data of the user equipment.
  • the macro base station and the small base station use a co-frequency networking, a same-standard inter-frequency networking, or a heterogeneous hetero-frequency networking communication.
  • the embodiment of the present invention further provides a data transmission method, including: when a user equipment needs to perform data transmission, the small base station accessed by the user equipment acquires a macro Control information of a physical layer data channel sent by the base station to the user equipment;
  • the performing, by the small base station, the data of the user equipment to be transmitted by the user equipment according to the control information of the physical layer data channel includes:
  • the small base station receives the uplink data of the user equipment that is sent by the user equipment according to the control information of the physical layer data channel.
  • control information of the physical layer data channel includes at least one of the following:
  • a time-frequency resource location at which the user equipment transmits data of the user equipment a transmission mode, a modulation mode, and a code rate used to transmit data of the user equipment.
  • the macro base station and the small base station use the same frequency group network, the same type of different frequency group network, or the heterogeneous type of different frequency network mode communication.
  • the embodiment of the present invention further provides a data transmission method, including: when a user equipment needs to perform data transmission, the user equipment receives control information of a physical layer data channel sent by a macro base station;
  • the user equipment performs data transmission of the user equipment according to the control information of the physical layer data channel and the small base station accessed by the user equipment; the small base station can acquire the macro base station to the user equipment. Control information of the physical layer data channel transmitted.
  • the user equipment performs data transmission of the user equipment according to the control information of the physical layer data channel and the small base station accessed by the user equipment. , including:
  • the user equipment receives, according to the control information of the physical layer data channel, downlink data of the user equipment that is sent by the small base station according to the control information of the physical layer data channel.
  • the user equipment performs data of the user equipment according to the control information of the physical layer data channel and the small base station accessed by the user equipment. Transmission, including:
  • the user equipment sends the uplink data of the user equipment to the small base station according to the control information of the physical layer data channel, so that the small base station sends the uplink data of the user equipment to the macro base station.
  • control information of the physical layer data channel includes at least one of the following:
  • a time-frequency resource location at which the user equipment transmits data of the user equipment a transmission mode, a modulation mode, and a code rate used to transmit data of the user equipment.
  • the macro base station and the small base station use the same frequency group network, the same type of different frequency group network, or the heterogeneous type of different frequency network mode communication.
  • an embodiment of the present invention further provides a data transmission method, including:
  • the macro base station When the user equipment needs to perform data transmission, the macro base station sends control information of the physical layer data channel to the user equipment;
  • the small base station accessed by the user equipment acquires control information of a physical layer data channel that is sent by the macro base station to the user equipment;
  • the macro base station and the small base station perform data transmission of the user equipment, and the small base station performs data transmission of the user equipment with the user equipment according to control information of the physical layer data channel.
  • the embodiment of the present invention further provides a macro base station, including:
  • control information sending module configured to send, to the user equipment, control information of a physical layer data channel when the user equipment needs to perform data transmission
  • a data transmission module configured to perform data transmission of the user equipment with a small base station that is accessed by the user equipment, where data of the user equipment is data that is transmitted by the user equipment according to control information of the physical layer data channel
  • the small base station is capable of acquiring control information of the physical layer data channel that is sent by the macro base station to the user equipment.
  • the data transmission module is specifically configured to send downlink data of the user equipment to the small base station, where the small base station is in the After the control information of the physical layer data channel is intercepted and parsed, the downlink data of the user equipment is sent to the user equipment according to the control information of the physical layer data channel, so that the user equipment can be according to the physical layer.
  • the control information of the data channel receives downlink data of the user equipment.
  • the data transmission module is specifically configured to receive uplink data of the user equipment that is sent by the small base station, where The uplink data of the user equipment is sent by the user equipment to the small base station according to control information of the physical layer data channel.
  • control information of the physical layer data channel includes at least one of the following:
  • a time-frequency resource location at which the user equipment transmits data of the user equipment a transmission mode, a modulation mode, and a code rate used to transmit data of the user equipment.
  • the macro base station and the small base station use a co-frequency networking, a same-standard inter-frequency networking, or a heterogeneous hetero-frequency networking communication.
  • the embodiment of the present invention further provides a small base station, including:
  • An acquiring module configured to acquire, when the user equipment that accesses the small base station needs to perform data transmission, control information of a physical layer data channel that is sent by the macro base station to the user equipment;
  • a data transmission module configured to perform data transmission of the user equipment with the user equipment according to the control information of the physical layer data channel.
  • the data transmission module is configured to send downlink data of the user equipment to the user equipment according to control information of the physical layer data channel, where The downlink data of the user equipment is received by the user equipment according to the control information of the physical layer data channel.
  • the data transmission module is configured to receive an uplink of the user equipment that is sent by the user equipment according to the control information of the physical layer data channel. data.
  • control information of the physical layer data channel includes at least one of the following:
  • Time-frequency resource location and transmission where the user equipment transmits data of the user equipment The transmission mode, modulation mode, and code rate adopted by the data of the user equipment.
  • the macro base station and the small base station use the same frequency group network, the same type of different frequency group network, or the heterogeneous type of different frequency network mode communication.
  • the embodiment of the present invention further provides a user equipment, including:
  • control information receiving module configured to receive control information of a physical layer data channel sent by the macro base station when data transmission is required
  • a data transmission module configured to: transmit data according to the control information of the physical layer data channel and the accessed small base station; and the small base station can acquire the physical layer data channel that is sent by the macro base station to the user equipment Control information.
  • the data transmission module is specifically configured to receive, according to the control information of the physical layer data channel, the small base station according to the The downlink data of the user equipment that is sent by the control information of the physical layer data channel.
  • the data transmission module is configured to send, according to the control information of the physical layer data channel, the uplink of the user equipment to the small base station.
  • control information of the physical layer data channel includes at least one of the following:
  • a time-frequency resource location at which the user equipment transmits data of the user equipment a transmission mode, a modulation mode, and a code rate used to transmit data of the user equipment.
  • the macro base station and the small base station use a co-frequency networking, a same-standard inter-frequency networking, or a heterogeneous hetero-frequency networking communication.
  • the eighth aspect of the present invention provides a network side device, including:
  • a macro base station configured to send, to the user equipment, control information of a physical layer data channel when the user equipment needs to perform data transmission;
  • a small base station configured to acquire control information of a physical layer data channel that is sent by the macro base station to the user equipment, where the small base station is a small base station that is accessed by the user equipment;
  • the macro base station is further configured to perform data transmission of the user equipment with the small base station, where the small base station is further configured to perform the user with the user equipment according to control information of the physical layer data channel. The transmission of data from the device.
  • the ninth aspect, the embodiment of the present invention further provides a data transmission system, comprising the macro base station according to any one of the above, the macro base station according to any one of the above, and the user equipment as described above.
  • the data transmission method and system, the macro base station, the small base station, and the user equipment in the embodiment of the present invention when the user equipment needs to perform data transmission, the macro base station sends control information of the physical layer data channel to the user equipment;
  • the small base station accessed by the user equipment, the small base station, and the user equipment respectively perform data transmission of the user equipment, and the data of the user equipment is transmitted by the user equipment according to the control information of the physical layer data channel.
  • the small base station is capable of acquiring control information of the physical layer data channel that is sent by the macro base station to the user equipment.
  • the macro base station directly sends the control information of the physical layer data channel to the user equipment, and the small base station sends the data to the user equipment, which can effectively prevent the macro base station and the small base station from simultaneously performing data with the user equipment.
  • the transmission causes a defect of signal interference, thereby effectively improving the data transmission efficiency of the user equipment.
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a data transmission method according to another embodiment of the present invention.
  • FIG. 3 is a flowchart of a data transmission method according to still another embodiment of the present invention.
  • FIG. 4 is a flowchart of a data transmission method according to another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a network architecture according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a network architecture according to another embodiment of the present invention.
  • Figure 7 is a functional entity diagram of the network architecture shown in Figure 6;
  • FIG. 11 is a schematic diagram of a scheduling mode in which a Master eNB and a Small eNB are separately separated by a time domain in the network architecture shown in FIG. 6;
  • FIG. 12 is a scheduling mode diagram of flexible scheduling by a Master eNB in the network architecture shown in FIG. 6;
  • FIG. 13 is a schematic diagram of mobility management within a Master eNB in the network architecture shown in FIG. 6;
  • Figure 14 is a diagram showing the state of use of the network architecture shown in Figure 6;
  • FIG. 15 is a schematic diagram of a network architecture according to another embodiment of the present invention
  • FIG. 16 is a schematic diagram of a network architecture according to another embodiment of the present invention.
  • FIG. 17 is a schematic diagram of carrier aggregation between different sites in the network architecture shown in FIG. 16;
  • FIG. 18 is a schematic diagram of frame-by-frame scheduling in the network architecture shown in FIG.
  • FIG. 19 is a schematic diagram of a network architecture according to still another embodiment of the present invention.
  • FIG. 20 is a schematic diagram of carrier aggregation between different sites in the network architecture shown in FIG. 19;
  • FIG. 21 is a schematic diagram of frame-by-frame scheduling in the network architecture shown in FIG.
  • FIG. 22 is a schematic structural diagram of a network architecture according to still another embodiment of the present invention.
  • FIG. 23 is a schematic diagram of an X2e interface according to an embodiment of the present invention.
  • Figure 24 is a schematic diagram of a user data plane of the X2e interface
  • 25 is a schematic diagram of a control plane of an X2e interface
  • 26 is a flowchart of establishing a data plane according to an embodiment of the present invention.
  • FIG. 27 is a schematic structural diagram of a macro base station according to an embodiment of the present disclosure.
  • FIG. 29 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 30 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 31 is a schematic structural diagram of a data transmission system according to an embodiment of the present invention. detailed description
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 1, the data transmission method of this embodiment may specifically include the following steps:
  • the macro base station sends control information of the physical layer data channel to the UE.
  • the macro base station and the small base station accessed by the UE perform data transmission of the UE, where the data of the UE is data that is transmitted by the UE according to the control information of the physical layer data channel.
  • the small base station can also acquire control information of the physical layer data channel.
  • the following two methods are used: In the first mode, when the macro base station sends the control information of the physical layer data channel to the UE, the small base station can obtain the control information of the physical layer data channel sent by the macro base station to the UE by monitoring. However, the small base station acquires the control information of the physical layer data channel, and does not affect the UE receiving the control information of the physical layer data channel sent by the macro base station. That is to say, even if the small base station can acquire the control information of the physical layer data channel, the UE can still successfully receive the control information of the physical layer data channel if other communication is normal.
  • the second mode is: the macro base station sends the control information of the physical layer data channel to the small base station.
  • the macro base station and the small base station can communicate through the X2e interface, so that the small base station can receive the macro base station through the X2e interface. Control information of the physical layer data channel transmitted.
  • the macro base station when the UE needs to perform data transmission, the macro base station sends the control information of the physical layer data channel to the UE; the macro base station and the small base station accessed by the UE perform data transmission of the UE, and the data of the UE is the UE. Data transmitted according to control information of the physical layer data channel.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the macro base station and the small base station accessed by the UE perform data transmission of the UE, so that the small base station can perform data transmission with the UE, and can
  • the defect that the macro base station and the small base station simultaneously perform signal transmission with the UE to avoid signal interference is effectively avoided, so that the data transmission efficiency of the UE can be effectively improved.
  • the macro base station when the UE needs to perform data transmission, the macro base station sends the message to the UE. Sending control information of the physical layer data channel; the macro base station and the small base station accessed by the UE perform data transmission of the UE, and the data of the UE is data transmitted by the UE according to the control information of the physical layer data channel.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission between the small base station and the UE can effectively avoid the signal interference caused by the macro base station and the small base station simultaneously transmitting data with the UE. The defect can effectively improve the data transmission efficiency of the UE.
  • the data channel and the control channel of the UE are simultaneously attached to the small micro base station.
  • the control channel also moves with the high speed of the UE, and the attached small base station is continuously replaced, resulting in discontinuous service.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • the method further includes: the macro base station according to the channel fed back by the UE.
  • the measurement information acquires control information of the physical layer data channel.
  • control information of the physical layer data channel in the foregoing embodiment includes control information of a physical uplink control channel (PUCCH) used by the UE to send uplink data, and a control information used by the UE to receive downlink data.
  • control information of a Physical Downlink Control Channel (PDCCH) includes control information of a Physical Downlink Control Channel (PDCCH).
  • the macro base station and the small base station accessed by the UE perform the data transmission of the UE, where the macro base station sends the downlink data of the UE to the small base station, to After the small base station intercepts and parses the control information of the physical layer data channel, the downlink data of the UE is sent to the UE according to the control information of the physical layer data channel, so that the UE can receive the downlink data of the UE according to the control information of the physical layer data channel.
  • the control information of the physical layer data channel in the solution refers to control information of the PDCCH, and is used to indicate control information of the downlink data channel of the physical layer.
  • the macro base station and the small base station accessed by the UE perform the data transmission of the UE, where the macro base station receives the uplink data of the UE sent by the small base station,
  • the uplink data of the UE is sent by the UE to the small base station according to the control information of the physical layer data channel.
  • the control information of the physical layer data channel in the scheme refers to the control information of the PUCCH, and is used to indicate the control information of the physical layer uplink data channel.
  • control information of the physical layer data channel in the foregoing embodiment includes at least one of the following: a time-frequency resource location where the UE transmits data of the UE, a transmission mode used by the UE to transmit data, a modulation mode, and Code rate.
  • the macro base station and the small base station in the foregoing embodiment use the same frequency group network, the same system different frequency group network or the heterogeneous type different frequency network mode to communicate.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission by the small base station and the UE can effectively prevent the macro base station and the small base station from simultaneously transmitting data with the UE.
  • the defect of signal interference can effectively improve the data transmission efficiency of the UE.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • FIG. 2 is a flowchart of a data transmission method according to another embodiment of the present invention. As shown in FIG. 2, the data transmission method in this embodiment may specifically include the following steps:
  • the small base station accessed by the UE acquires control information of the physical layer data channel sent by the macro base station to the UE.
  • This embodiment is limited only to obtaining control information of a physical layer data channel.
  • control information of a physical layer data channel For details of the transmission of other control information, refer to the description of the prior art, and details are not described herein again.
  • the small base station can obtain the control information of the physical layer data channel by using the following two methods: In the first mode, the macro base station can send the control information of the physical layer data channel to the UE, and the small base station can Obtaining control information of a physical layer data channel sent by the macro base station to the UE. However, the small base station acquires the control information of the physical layer data channel, and does not affect the UE receiving the control information of the physical layer data channel sent by the macro base station. That is to say, even if the small base station can acquire the control information of the physical layer data channel, if the other communication is normal, the UE can still successfully receive the control information of the physical layer data channel.
  • the second mode is: the macro base station also sends the control information of the physical layer data channel to the small base station.
  • the macro base station and the small base station can communicate through the X2e interface, so that the small base station can receive the Acer through the X2e interface. Control information of the physical layer data channel sent by the station.
  • the small base station performs data transmission of the UE with the UE according to the control information of the physical layer data channel.
  • the small base station accessed by the UE acquires the control information of the physical layer data channel sent by the macro base station to the UE; the small base station performs the control information with the UE according to the control information of the physical layer data channel. Transmission of data of the UE.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission between the small base station and the UE can effectively avoid the signal interference caused by the macro base station and the small base station simultaneously transmitting data with the UE. The defect can effectively improve the data transmission efficiency of the UE.
  • the data channel and the control channel of the UE are simultaneously attached to the small micro base station.
  • the control channel also moves with the high speed of the UE, and the attached small base station is continuously replaced, resulting in discontinuous service.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • control information of the physical layer data channel in the foregoing embodiment shown in FIG. 2 is obtained by the macro base station according to the channel measurement information fed back by the UE.
  • control information of the physical layer data channel in the foregoing embodiment includes control information of a PUCCH used by the UE to send uplink data and control information of a PDCCH used by the UE to receive downlink data.
  • the "small base station and the UE perform data transmission of the UE” may specifically include: the small base station sends the downlink of the UE to the UE according to the control information of the physical layer data channel. Data, such that the UE can receive downlink data of the UE according to control information of the physical layer data channel.
  • the method further includes: the small base station receiving the downlink data of the UE sent by the macro base station.
  • the control information of the physical layer data channel in the solution refers to control information of the PDCCH, and is used to indicate control information of the physical layer downlink data channel.
  • the small base station performs the data transmission of the UE with the UE according to the control information of the physical layer data channel
  • the method may include: receiving, by the small base station, the UE according to the physical layer data channel.
  • the control information of the physical layer data channel in the scheme refers to the control information of the PUCCH, and is used to indicate the control information of the physical layer uplink data channel.
  • the small base station may further include: the small base station sends the uplink data of the UE to the macro base station.
  • control information of the physical layer data channel in the foregoing embodiment includes at least one of the following: a time-frequency resource location where the UE transmits data of the UE, a transmission mode used by the UE to transmit data, a modulation mode, and Code rate.
  • the macro base station and the small base station in the foregoing embodiment use the same frequency group network, the same system different frequency group network or the heterogeneous type different frequency network mode to communicate.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission by the small base station and the UE can effectively prevent the macro base station and the small base station from simultaneously transmitting data with the UE.
  • the defect of signal interference can effectively improve the data transmission efficiency of the UE.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • FIG. 3 is a flowchart of a data transmission method according to still another embodiment of the present invention. As shown in FIG. 3, the data transmission method in this embodiment may specifically include:
  • the UE When the UE needs to perform data transmission, the UE receives control information of a physical layer data channel sent by the macro base station.
  • the UE performs data transmission of the UE according to the control information of the physical layer data channel and the small base station accessed by the UE.
  • the small base station can also acquire control information of the physical layer data channel. Specifically, in the following manner, in the process of the macro base station transmitting the control information of the physical layer data channel to the UE, the small base station can obtain the control information of the physical layer data channel sent by the macro base station to the UE by monitoring. However, the small base station acquires the control information of the physical layer data channel, and does not affect the UE receiving the control information of the physical layer data channel sent by the macro base station. That is to say, even if the small base station can acquire the control information of the physical layer data channel, if the other communication is normal, the UE can still successfully receive the control information of the physical layer data channel.
  • the second mode is: the macro base station sends the control information of the physical layer data channel to the small base station.
  • the macro base station and the small base station can communicate through the X2e interface, so that the small base station can receive the macro base station through the X2e interface.
  • Control information of the physical layer data channel transmitted.
  • the UE when the UE needs to perform data transmission, the UE receives the control information of the physical layer data channel sent by the macro base station; the UE performs the UE data according to the control information of the physical layer data channel and the small base station accessed by the UE. Transmission.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission between the small base station and the UE can effectively avoid the signal interference caused by the macro base station and the small base station simultaneously transmitting data with the UE.
  • the defect can effectively improve the data transmission efficiency of the UE.
  • the data channel and the control channel of the UE are simultaneously attached to the small micro base station.
  • the control channel also moves with the high speed of the UE, and the attached small base station is continuously replaced, resulting in discontinuous service.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • the method may further include: the UE feeding back to the macro base station.
  • the channel measurement information is used by the macro base station to acquire control information of the physical layer data channel according to the channel measurement information.
  • the control information of the physical layer data channel in this embodiment includes control information of a PUCCH used by the UE to send uplink data and control information of a PDCCH used by the UE to receive downlink data.
  • the UE performs the data transmission of the UE according to the control information of the physical layer data channel and the small base station accessed by the UE, and the method may include: the UE according to the physical layer data.
  • the control information of the physical layer data channel in the solution refers to control information of the PDCCH, and is used to indicate control information of the physical layer downlink data channel.
  • the UE performs the data transmission of the UE according to the control information of the physical layer data channel and the small base station accessed by the UE, and the method may include: the UE according to the physical layer data.
  • the control information of the channel sends the uplink data of the UE to the small base station, so that the small base station sends the uplink data of the UE to the macro base station.
  • the control information of the physical layer data channel in the scheme refers to the control information of the PUCCH, and is used to indicate the control information of the physical layer uplink data channel.
  • control information of the physical layer data channel in the foregoing embodiment includes at least one of the following: a time-frequency resource location where the UE transmits data of the UE, and a data used to transmit the UE data. Transmission mode, modulation method, and code rate.
  • the macro base station and the small base station in the foregoing embodiment use the same frequency group network, the same system different frequency group network or the heterogeneous type different frequency network mode to communicate.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission by the small base station and the UE can effectively prevent the macro base station and the small base station from simultaneously transmitting data with the UE.
  • the defect of signal interference can effectively improve the data transmission efficiency of the UE.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • the macro base station and the small base station in the foregoing embodiments of the present invention use an extended X2e interface or an optical fiber to communicate with each other, that is, the macro base station and the small base station can be used for wireless communication or wired communication.
  • the small base station in the above embodiment may be a Femtocell (pico cell) widely discussed in the IEEE 802.16m standard, or a HomeNodeB (home base station) in 3GPP.
  • the small base station may also be a sector or micro base station within the coverage of the macro base station.
  • the macro base station can implement unified management of the small base stations in its coverage, and the small base station connects to the macro base station through the corresponding interface (X2e or optical fiber), and receives user data from the macro base station, and Monitoring the control information of the physical layer data channel of the UE attached to the small base station under the coverage of the macro base station, that is, the control information of the physical layer data channel of all UEs covered by the macro base station is uniformly scheduled by the macro base station, and the small base station only transmits data or Mirroring of data and macro base station control information.
  • X2e or optical fiber corresponding interface
  • Monitoring the control information of the physical layer data channel of the UE attached to the small base station under the coverage of the macro base station that is, the control information of the physical layer data channel of all UEs covered by the macro base station is uniformly scheduled by the macro base station, and the small base station only transmits data or Mirroring of data and macro base station control information.
  • FIG. 4 is a flowchart of a data transmission method according to another embodiment of the present invention. This embodiment describes the technical solution of the present invention on the network side device side. As shown in FIG. 4, the data transmission method in this embodiment may specifically include the following steps:
  • the macro base station sends control information of the physical layer data channel to the UE.
  • the small base station accessed by the 40K UE acquires control information of the physical layer data channel sent by the macro base station to the UE;
  • the macro base station performs UE data transmission with the small base station, and the small base station performs physical layer data according to The control information of the channel and the UE perform data transmission of the UE.
  • the small base station can obtain the control information of the physical layer data channel by using the following two methods: In the first mode, the macro base station can send the control information of the physical layer data channel to the UE, and the small base station can Obtaining control information of a physical layer data channel sent by the macro base station to the UE. However, the small base station acquires the control information of the physical layer data channel, and does not affect the UE receiving the control information of the physical layer data channel sent by the macro base station. That is to say, even if the small base station can acquire the control information of the physical layer data channel, if the other communication is normal, the UE can still successfully receive the control information of the physical layer data channel.
  • the second mode is: the macro base station also sends the control information of the physical layer data channel to the small base station.
  • the macro base station and the small base station can communicate through the X2e interface, so that the small base station can receive the Acer through the X2e interface. Control information of the physical layer data channel sent by the station.
  • the macro base station when the UE needs to perform data transmission, the macro base station sends the control information of the physical layer data channel to the UE; the small base station accessed by the UE acquires the control information of the physical layer data channel sent by the macro base station to the UE; The small base station performs data transmission of the UE with the UE according to the control information of the physical layer data channel.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission between the small base station and the UE can effectively avoid the signal interference caused by the macro base station and the small base station simultaneously transmitting data with the UE. The defect can effectively improve the data transmission efficiency of the UE.
  • FIG. 4 describes the technical solution of the present invention on the network side, and the specific implementation manner of the technical solution is the same as the implementation mechanism of the foregoing embodiment shown in FIG. 1, FIG. 2 and FIG. Reference is made to the description of the embodiments shown in FIG. 1, FIG. 2 and FIG. 3, and details are not described herein again.
  • the following alternative technical solutions of the embodiment shown in FIG. 1 , FIG. 2 and FIG. 3 can also be used as an optional technical solution of the embodiment shown in FIG. 4 to form an optional embodiment of the embodiment shown in FIG. 4 .
  • FIG. 4 For details, refer to the subsequent optional embodiments of the embodiment shown in FIG. 1 , FIG. 2 and FIG. 3 , and details are not described herein again.
  • FIG. 5 is a schematic diagram of a network architecture according to an embodiment of the present invention.
  • the network architecture diagram of this embodiment is applied to a Long Term Evolution (LTE) system as an example.
  • the macro base station is a Master eNB
  • the small base station is a small eNB.
  • the network architecture of this embodiment can also be applied to other networks such as UMTS.
  • the Master eNB is connected to a backend service (Gateway; GW) and a mobility management element (MME), for one
  • the coverage of the Master eNB there is one or more small eNBs, which are connected to the Master eNB through (X2e or fiber).
  • the embodiment shown in FIG. 5 is exemplified by the coverage of three small eNBs under the Master eNB.
  • the master eNB acts as a data channel aggregation node and a control information sending node of the small eNB, and sends control information of the physical layer data channel attached to the UE above the primary eNB; meanwhile, the Master eNB sends The data sent by the eNB to the small eNB is sent to the small eNB through the X2e interface.
  • the small eNB determines the control information of the physical layer data channel sent by the master eNB or receives the control information sent by the master eNB through the X2e interface.
  • the transmission location of the UE data channel thereby transmitting the corresponding data channel to each UE.
  • a plurality of different systems can be deployed, as shown in Table 1 below, which can be deployed by the Master eNB and the small eNB.
  • L refers to LTE
  • G refers to GSM
  • U refers to UMTS
  • frequency is in Mhz
  • Master eNB uses Macro
  • small eNB uses Pico.
  • FIG. 6 is a schematic diagram of a network architecture according to another embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the embodiment shown in FIG. 5, which provides that the Master eNB and the attached Small eNB work at the same frequency point without UE supporting carrier aggregation, that is, the Master eNB and the Small eNB shown in FIG. 6.
  • the architecture of the same frequency networking is adopted.
  • the MME is configured to implement a mobility management function to move down, and is only responsible for the mobility management function when moving across the Master eNB.
  • the Serving GW is configured to implement data aggregation to the Master eNB for reaching the Small eNB. Function; Master eNB, used to increase data aggregation, That is, the Serving GW Agent function is used as the data aggregation node of the Small eNB in the scope; the mobility management function, that is, the MME Agent function, is added as the Small eNB and the Master eNB attached to the UE to perform unified mobility management; Within the scope of the schedule,
  • the UE performs unified joint scheduling; generates unified control information of the physical layer data channel; and attaches the data channel of the UE itself.
  • Small eNB A function that only includes a data channel to transmit data, and an optional physical layer data channel control information image (a macro diversity gain for obtaining control information of a physical layer data channel).
  • the small eNB only implements the physical layer (PHY layer).
  • the small eNB only implements the PHY layer, that is, the small eNB is only responsible for data transmission, and can be further advanced. Reduce the cost of the small eNB.
  • hybrid automatic repeat request Hybrid automatic repeat request; HARQ
  • ACK feedback is transmitted using control information of the physical layer data channel;
  • HARQ is directly implemented between the Master eNB and the UE.
  • the ACK feedback can be multiplexed with the PDSCH data.
  • the small eNB needs to decode the HARQ feedback information and send it to the Master eNB.
  • the current X2 interface needs to be extended, which has a great impact on the standard.
  • the small eNB has no ARQ function, and the ARQ is directly implemented between the Master eNB and the UE.
  • the small eNB implements the PHY or higher.
  • the small eNB only implements the PHY layer to the PDCP level, and the S ⁇ small - eNB receives data transmission from the Master eNB and performs data transmission according to its own mode.
  • (a) ACK feedback control information transmission using the physical layer data channel The Master eNB needs to decode the HARQ feedback information and notify the Small eNB, and needs to extend the current X2 interface, which has a large impact on the standard.
  • the ARQ is implemented directly between the small eNB and the UE.
  • the advantage of using the protocol stack model is that the small eNB has upper-layer processing capability, which is convenient for deployment, and has a small impact on the interface between the small eNB and the master eNB, and requires a small transmission data rate.
  • FIG. 10 is a schematic diagram of a scheduling pattern separated by a frequency domain between a Master eNB and a Small eNB in the network architecture shown in FIG. 6.
  • the UEs are allocated resources for the UEs in the Master eNB and the Small eNB.
  • the complete transmission spectrum is further divided.
  • f0 for the OFDM symbol used for transmitting the data channel, further divides f0 into three resources of fl, f2, and ⁇ according to the spectrum granularity, where fl is used for transmitting the user data channel attached to the Master eNB, and f2 is used for transmission attachment.
  • f3 is used to transmit the user data channel attached to Small eNB3.
  • the division principle of fl, f2, and ⁇ can be divided according to the ratio of UE communication data attached to different base stations, and the base station with a high ratio of attached UEs has more corresponding spectrum resources.
  • the ratio of the UE communication data may be divided according to the proportion of data of the total UEs to be transmitted under each base station.
  • the same frequency f2 can be used because of the remote location.
  • FIG. 11 is a schematic diagram of a scheduling mode separated by a time domain between a Master eNB and a Small eNB in the network architecture shown in FIG. 6.
  • resource scheduling mode resources are allocated to the UEs in the Master eNB and the Small eNB respectively.
  • the complete transmission spectrum is further divided, and every 3 transmission subframes in the LTE are used.
  • the same time domain resources can be used due to their remote location.
  • FIG. 12 is a schematic diagram of a scheduling mode for flexible scheduling by the Master eNB in the network architecture shown in FIG. 6.
  • every 3 transmission subframes in LTE are transmitted as one transmission unit.
  • different resource block representations are used to allocate data channels to different eNBs. The number of resource allocations in each eNB is determined by the master eNB according to the UEs attached to each eNB. Flexible allocation.
  • FIG. 13 is a schematic diagram of mobility management within the scope of the Master eNB in the network architecture shown in Figure 6. As shown in FIG. 13, the UEs are respectively scheduled to have different resources under different eNBs (as shown in the figure, the different frames identified represent the data channel transmission resources correspondingly allocated under different eNBs), and therefore, the Master is adopted. Mobility management within the eNB does not require additional handover signaling, which speeds up the handover speed of the UE.
  • Figure 14 is a diagram showing the state of use of the network architecture shown in Figure 6.
  • the UE is considered in the network architecture to consider the control channel diversity gain situation under the network architecture situation shown in FIG. 6.
  • the Small eNB can simultaneously transmit the control information of the physical layer data channel, that is, the control information of the physical layer data channel of the Master eNB.
  • the control information of the physical layer data channel from the Master eNB and the Small eNB is simultaneously received, the effect of macro diversity reception is achieved, and the control information receiving quality of the physical layer data channel within the coverage of the Small eNB is enhanced.
  • FIG. 15 is a schematic diagram of a network architecture according to another embodiment of the present invention.
  • FIG. 15 is a diagram of a technical solution of an embodiment of the present invention applied to a network system of UMTS.
  • RNC Radio Network Controller
  • the corresponding control functions can be centralized to the RNC, such as joint resource scheduling, CoMP, and the like.
  • the Small eNBs and the Master eNBs in the coverage of the same Master eNB use the same codeword as the identifier of the base station, and after the codeword is scrambled, the corresponding data is sent, and the physical layer
  • the control information of the data channel can be uniformly sent by the Master eNB within the coverage of the Master eNB.
  • FIG. 16 is a schematic diagram of a network architecture according to still another embodiment of the present invention.
  • the Master eNB and the attached Small eNB work at different frequency points, and the UE needs to support carrier aggregation, that is, the Master eNB and the Small eNB shown in FIG.
  • the architecture of the same-standard inter-frequency networking is adopted.
  • FIG. 17 is a schematic diagram of carrier aggregation between different sites in the network architecture shown in FIG. 16. As shown in FIG. 17 , different sites are allocated different carriers, and carriers of multiple frequencies can be aggregated to serve the UE in the master eNB.
  • the master eNB uniformly sends UE control information, and instructs the UE to receive or transmit data on a specific carrier, that is, corresponding. Send and receive data to a specific Small eNB. In this way, the frequency resources can be reasonably planned, and the spectrum utilization efficiency can be improved by the aggregation of carriers and the unified control information of the physical layer data channel.
  • the scheduling can be advanced by one frame, that is, the schematic diagram of the inter-frame scheduling as shown in FIG.
  • the technical feasibility of carrier aggregation at different sites is subject to further analysis, simulation and verification, including CP length design.
  • the other embodiments are the same as the architecture of the same-frequency networking between the foregoing Master eNB and the small eNB. For details, refer to the related embodiments of the architecture of the same-frequency networking, and details are not described herein.
  • FIG. 19 is a schematic diagram of a network architecture according to still another embodiment of the present invention.
  • the UE needs to support the carrier system at different frequency points between the master eNB and the attached Small eNB, and the UE needs to support the carrier aggregation between the heterogeneous modes. That is, the architecture of the heterogeneous inter-frequency networking is adopted between the Master eNB and the Small eNB shown in FIG.
  • the Master eNB is connected to the Serving GW and the MME of the back end, and in the LTE system, in the coverage of one Master eNB, one or more jobs exist in the other.
  • the small eNB of the knowledge operates in the UMTS and GSM systems respectively, and these small eNBs are connected to the Master eNB through (X2e or optical fiber).
  • the master eNB acts as a data channel aggregation node and a control information sending node of the small eNB, and transmits control information of the physical layer data channel attached to the UE above the UE for all the small base stations (LTE system, control information format of the LTE physical layer data channel)
  • the Master eNB sends the data channel to the UE attached to it in the LTE system; at the same time, the Master eNB sends the data to all the small base stations to transmit the data attached to the UE to the small base station, and the small base station listens to the Master eNB through the X2e interface.
  • the control information of the transmitted physical layer data channel or the control information sent by the Master eNB is received through the X2e interface to determine the transmission location of the user data channel, so that the small base station sends the corresponding data channel to each by different systems (UMTS, GSM). UE.
  • FIG. 20 is a schematic diagram of carrier aggregation between different sites in the network architecture shown in FIG. 19. Further, in order to improve resource utilization, the scheduling can be advanced by one frame, that is, the schematic of the interframe scheduling as shown in FIG.
  • the other embodiments are the same as the architecture of the same-frequency networking between the master eNB and the small eNB. For details, refer to the related architecture of the same-frequency networking or the architecture of the same-frequency inter-frequency networking. Let me repeat.
  • FIG. 22 is a schematic structural diagram of a network architecture according to still another embodiment of the present invention.
  • the macro base station can implement unified management of the small base stations in the coverage area thereof, and the small base station connects to the macro base station through the corresponding interface (X2e or CPRI), and receives the User data and control information of the macro base station; for the terminal attached to the small base station under the coverage of the macro base station, the high-speed mobile UE receives the control information of the physical layer data channel from the macro base station, and the small base station retains the control information of the physical layer data channel, Used to serve UEs that move at low speeds for small base stations.
  • X2e or CPRI corresponding interface
  • the Master eNB is connected to the Serving GW and the MME of the back end.
  • the Master eNB For the coverage of one Master eNB, there is one or more LTE small eNBs, and these Small eNBs are connected to the Master eNB through (X2e or optical fiber).
  • the master eNB functions as a data channel aggregation node and a control information sending node of the small eNB, and at the same time, reserves the control information sending function of the physical channel data channel of the small eNB.
  • the UE under the small eNB performs further classification into high-speed mobile terminals and fixed terminals (or low-speed mobile terminals): For high-speed mobile terminals, since it may move frequently between the Master eNB and different small eNBs, The master eNB sends control information of its corresponding physical layer data channel, and the small eNB sends its corresponding data channel. For a fixed terminal (or low-speed mobile terminal), the corresponding physical layer is sent by the small eNB. According to the channel control information and data. The data of the UE data channel sent by the small base station is derived from the UE data that the Master eNB sends to the small base station through the X2e interface. The small base station determines the transmission location of the user data channel by monitoring the control information of the physical layer data channel sent by the Master eNB or receiving the control information sent by the Master eNB through the X2e interface.
  • the centralized control of the physical layer data channel that is, the number of UEs to be received becomes larger, and the size of the control channel becomes larger.
  • the technical solution of the network architecture of this embodiment can balance efficiency and control. The size of the channel.
  • FIG. 23 is a schematic diagram of an X2e interface according to an embodiment of the present invention.
  • the X2 interface in the prior art can support the transmission of the user data plane PDUs, and the GTP encapsulates the user data, but the current X2 interface is mainly used for transmitting the cached data during the handover to ensure the data. Integrity.
  • the data of the Small eNB needs to be transmitted by the X2e interface of the Master eNB, that is, the Master eNB needs to have a corresponding classifier to select data to the specific Small eNB, and the X2e interface (X2 extend)
  • the extended X2 interface M is exclusively transmitted to the corresponding small eNB.
  • Fig. 24 it is a schematic diagram of the user data plane of the X2e interface.
  • the control plane is mainly composed of various TLVs (Type Length Value), such as DCI type (downlink channel indication type), Allocated PRB (number of assigned PRBs), PRB location (PRB location), etc.
  • TLVs are connected in series to form a Control PDU (Control Information Packet Unit), and then transmitted through the respective packages of the lower layer, the small eNB is transmitted.
  • the small eNB directly parses the control information of the physical layer data channel sent by the Master eNB to obtain control information corresponding to the UE data channel.
  • Figure 25 shows the control plane of the X2e interface.
  • FIG. 26 is a flowchart of establishing a data plane according to an embodiment of the present invention. Based on the technical solution of the above embodiment, the embodiment shown in FIG. 26 provides a manner of establishing a data plane of the network architecture based on the above-described embodiment of the present invention. As shown in FIG. 26, the following may specifically include the following steps:
  • the primary base station Master eNB sends a system information advertisement (system information advertisement);
  • the UE initiates a network entry procedure at the primary base station (Network Entry at Master eNB);
  • the UE completes the authentication through the master base station Master eNB and the MME.
  • the MME generates a corresponding security context and mobility management context, and sends the generated security context and mobility management context to the Master eNB.
  • the UE completes the QoS authorization with the PCRF through the master eNB, and the network side obtains the QoS context information related to the UE.
  • the UE initiates a network attachment with the small base station Pico Celll, where the UE is not perceptible.
  • the UE considers itself to be attached to the primary base station Master eNB;
  • the network side MME perceives the small base station Pico Celll where the UE is located, generates a corresponding Pico security context and sends it to the small base station Pico Celll; wherein the Pico security context is used for data surface encryption;
  • the primary base station Master eNB establishes a control plane with the UE
  • the PCRF initiates a setup trigger for the user data plane to carry the IP-CAN Bearer, and sequentially establishes a data plane between the PDN-GW and the Serving GW, the serving GW and the primary base station Master eNB, and the primary base station Master eNB and the small base station Pico Celll. Finally, the establishment of the wireless air interface data plane between the small base station Pico Celll and the UE is completed.
  • the macro base station can implement unified management of the small base station in the coverage area thereof, and the macro base station and the small base station pass the corresponding interface.
  • X2e or optical fiber is connected to the macro base station, receives user data from the macro base station, and monitors control information of the UE attached to the small base station in the coverage of the macro base station for indicating the physical layer data channel, that is, under the coverage of the macro base station
  • the control information of all UEs for indicating the physical layer data channel is uniformly scheduled by the macro base station, and the small base station only transmits the data channel or the mirror of the control information of the data channel and the macro base station physical layer data channel.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the above-described method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • FIG. 27 is a schematic structural diagram of a macro base station according to an embodiment of the present invention. As shown in FIG. 27, the macro base station of this embodiment includes a control information transmitting module 10 and a data transmission module 11.
  • the control information sending module 10 is configured to: when the UE needs to perform data transmission, send control information of the physical layer data channel to the UE; the data transmission module 11 is configured to perform with the small base station accessed by the UE.
  • the data of the UE is the data transmitted by the UE according to the control information of the physical layer data channel sent by the control information sending module 10 to the UE; wherein the small base station can also acquire the physical layer data channel sent by the macro base station to the UE.
  • Control information For example, the control information of the physical layer data channel is obtained by the small base station.
  • the macro base station in this embodiment is the same as the implementation mechanism of the foregoing method in the data transmission by using the foregoing module.
  • the macro base station in this embodiment is the same as the implementation mechanism of the foregoing method in the data transmission by using the foregoing module.
  • the macro base station in this embodiment uses the foregoing module.
  • the macro base station sends control information of the physical layer data channel to the UE.
  • the macro base station and the small base station accessed by the UE perform data transmission of the UE, and the UE
  • the data is data transmitted by the UE according to control information of the physical layer data channel.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the small base station sends the data channel to the UE, which can effectively prevent the macro base station and the small base station from simultaneously transmitting data with the UE.
  • the defect of interference can effectively improve the data transmission efficiency of the UE.
  • the data channel and the control channel of the UE are simultaneously attached to the small micro base station.
  • the control channel also moves with the high speed of the UE, and the attached small base station is continuously replaced, resulting in discontinuous service.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • the macro base station may further include: an acquiring module, configured to: before the control information sending module sends the control information of the physical layer data channel to the UE, according to the feedback of the UE, on the basis of the foregoing embodiment shown in FIG.
  • the channel measurement information generates control of the physical layer data channel ⁇ I Ft self.
  • the data transmission module 11 is specifically configured to send downlink data of the UE to the small base station, after the small base station intercepts and parses the control information of the physical layer data channel.
  • the downlink data of the UE is sent to the UE according to the control information of the physical layer data channel, so that the UE can receive the downlink data of the UE according to the control information of the physical layer data channel.
  • the data transmission module 11 may also Specifically, the uplink data of the UE is sent by the UE to the small base station according to the control information of the physical layer data channel.
  • control information of the physical layer data channel includes at least one of the following: a time-frequency resource location where the UE transmits the data of the UE, and a data location of the UE.
  • the macro base station and the small base station use the same frequency network, the same type of different frequency network or the heterogeneous type of different frequency network communication.
  • the modules in the above macro base station can be implemented by hardware in a chip in one embodiment.
  • it can be implemented by an FPGA (Field Programmable Gate Array); in another embodiment, it can also be implemented by a software algorithm that calls a specific function.
  • FPGA Field Programmable Gate Array
  • the embodiment of the invention is not particularly limited.
  • the macro base station directly transmits the control information of the physical layer data channel to the UE, and the small base station transmits the data channel to the UE, which can effectively avoid the macro base station and the small base station simultaneously from the UE.
  • the defect of signal interference caused by data transmission can effectively improve the data transmission efficiency of the UE.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • FIG. 28 is a schematic structural diagram of a small base station according to an embodiment of the present invention.
  • the small base station in this embodiment may specifically include: an obtaining module 20 and a data transmission module 21.
  • the obtaining module 20 is configured to acquire control information of a physical layer data channel that the macro base station sends to the UE when the UE that accesses the small base station needs to perform data transmission.
  • the small base station acquires control of the physical layer data channel sent by the macro base station to the UE.
  • the information may be specifically implemented in two manners of the foregoing related method embodiments, and details are not described herein again.
  • the data transmission module 21 is connected to the acquisition module 20, and the data transmission module 21 is configured to perform data transmission of the UE with the UE based on the control information of the physical layer data channel acquired by the acquisition module 20.
  • the small base station in this embodiment is the same as the implementation mechanism of the foregoing method embodiment by using the foregoing module.
  • the small base station of the embodiment when the UE needs to perform data transmission, the small base station accessed by the UE acquires control information of the physical layer data channel sent by the macro base station to the UE; and the small base station controls information according to the physical layer data channel.
  • the transmission of data of the UE is performed with the UE.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the small base station sends the data channel to the UE, which can effectively prevent the macro base station and the small base station from simultaneously transmitting data with the UE.
  • the defect of interference can effectively improve the data transmission efficiency of the UE.
  • the data channel and the control channel of the UE are simultaneously attached to the small micro base station.
  • the control channel also moves with the high speed of the UE, and the attached small base station is continuously replaced, resulting in discontinuous service.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • control information of the physical layer data channel is obtained by the macro base station according to the channel measurement information fed back by the UE.
  • the data transmission module 21 may be specifically connected to the acquisition module 20, and the data transmission module 21 is configured to send, according to the control information of the physical layer data channel acquired by the acquisition module 20, to the UE.
  • the downlink data of the UE is sent, so that the UE can receive the downlink data of the UE according to the control information of the physical layer data channel.
  • the data transmission module 21 is further configured to receive the macro base station before sending the downlink data of the UE to the UE according to the control information of the physical layer data channel acquired by the obtaining module 20, on the basis of the foregoing embodiment.
  • the downlink data of the transmitted UE is further configured to receive the macro base station before sending the downlink data of the UE to the UE according to the control information of the physical layer data channel acquired by the obtaining module 20, on the basis of the foregoing embodiment.
  • the data transmission module 21 is configured to receive uplink data of the UE that is sent by the UE according to the control information of the physical layer data channel.
  • the data transmission module 21 is further configured to: after receiving the uplink data of the UE that is sent by the UE according to the control information of the physical layer data channel, send the uplink of the UE to the macro base station. data.
  • control information of the physical layer data channel in the foregoing embodiment includes at least one of the following: a time-frequency resource location where the UE transmits data of the UE, and a data location of the UE.
  • the macro base station and the small base station use the same frequency network, the same type of different frequency network or the heterogeneous type of different frequency network communication.
  • the modules in the above small base stations can be implemented by hardware in a chip in one embodiment.
  • it can be implemented by an FPGA (Field Programmable Gate Array); in another embodiment, it can also be implemented by a software algorithm that calls a specific function.
  • FPGA Field Programmable Gate Array
  • the embodiment of the invention is not particularly limited.
  • the macro base station directly transmits the control information of the physical layer data channel to the UE, and the data transmission by the small base station and the UE can effectively prevent the macro base station and the small base station from simultaneously performing with the UE.
  • Data transmission causes defects in signal interference, which can effectively improve the data transmission efficiency of the UE.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • FIG. 29 is a schematic structural diagram of a UE according to an embodiment of the present invention. As shown in FIG. 29, the UE of this embodiment may specifically include: a control information receiving module 30 and a data transmission module 31.
  • the control information receiving module 30 is configured to receive control information of a physical layer data channel sent by the macro base station when data transmission is required; the data transmission module 31 is connected to the control information receiving module 30, and the data transmission module 31 is configured to receive according to the control information.
  • the control information of the physical layer data channel received by the module 30 and the accessed small base station transmit data; the small base station can acquire the control information of the physical layer data channel sent by the macro base station to the UE.
  • the control information of the physical layer data channel of the small base station can be obtained by the two methods of the foregoing related method embodiments, and details are not described herein again.
  • the UE in this embodiment is the same as the implementation of the foregoing method in the data transmission by using the foregoing module.
  • the UE in this embodiment is the same as the implementation of the foregoing method in the data transmission by using the foregoing module.
  • the modules in the above UEs may be implemented by hardware in a chip in one embodiment.
  • it can be implemented by an FPGA (Field Programmable Gate Array); in another embodiment, it can also be implemented by a software algorithm that calls a specific function.
  • FPGA Field Programmable Gate Array
  • This hair The embodiment is not particularly limited.
  • the UE in this embodiment receives the control information of the physical layer data channel sent by the macro base station when the UE needs to perform data transmission by using the foregoing module; the UE performs the UE according to the control information of the physical layer data channel and the small base station accessed by the UE.
  • the transmission of data In the technical solution of the embodiment, the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission by the small base station and the UE can effectively avoid the signal interference caused by the macro base station and the small base station simultaneously transmitting data with the UE. The defect can effectively improve the data transmission efficiency of the UE.
  • the data channel and the control channel of the UE are simultaneously attached to the small micro base station.
  • the control channel also moves with the high speed of the UE, and the attached small base station is continuously replaced, resulting in discontinuous service.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • the data transmission module 31 is further configured to feed back to the macro base station before receiving control information of the physical layer data channel sent by the macro base station when data transmission is required.
  • the channel measurement information is used by the macro base station to acquire control information of the physical layer data channel according to the channel measurement information.
  • the data transmission module 31 is specifically configured to receive, according to the control information of the physical layer data channel received by the control information receiving module 30, the control of the receiving small base station according to the physical layer data channel. Downlink data of the UE that the information is transmitted.
  • the data transmission module 31 is specifically configured to send uplink data of the UE to the small base station according to the control information of the physical layer data channel received by the control information receiving module 30, to The small base station sends the uplink data of the UE to the macro base station.
  • control information of the physical layer data channel in the foregoing embodiment includes at least one of the following: a time-frequency resource location where the UE transmits data of the UE, a transmission mode, a modulation mode, and a code used to transmit the data of the UE. rate.
  • the macro base station and the small base station use the same frequency network, the same type of different frequency network or the heterogeneous type of different frequency network communication.
  • the macro base station directly transmits the control information of the physical layer data channel to the UE, and the small base station transmits the data channel to the UE, which can effectively prevent the macro base station and the small base station from simultaneously contacting the UE.
  • the defect of signal interference caused by data transmission can effectively improve the data transmission efficiency of the UE.
  • the control channel is always attached to the macro base station.
  • the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • FIG. 30 is a schematic structural diagram of a network side device according to an embodiment of the present invention. As shown in FIG. 30, the network side device of this embodiment includes: a macro base station 40 and a small base station 41.
  • the macro base station 40 is configured to: when the UE needs to perform data transmission, send control information of the physical layer data channel to the UE; the small base station 41 can communicate with the macro base station 40, and the small base station 41 is configured to acquire the macro base station 40 to send to the UE.
  • the control information of the physical layer data channel for example, the control information of the physical layer data channel obtained by the small base station may be specifically used in the foregoing two manners of the related method embodiments, and details are not described herein again.
  • the small base station 41 is a small base station that the UE accesses; the macro base station 40 is further configured to perform data transmission of the UE with the small base station 41, and the small base station 41 is further configured to perform data of the UE with the UE according to the control information of the physical layer data channel. Transmission.
  • the network side device of the present embodiment implements the data transmission by using the above-mentioned macro base station and the small base station.
  • the implementation mechanism of the foregoing method is the same as that of the foregoing method.
  • the network side device of the embodiment uses the macro base station and the small base station to transmit the control information of the physical layer data channel to the UE when the UE needs to perform data transmission; the small base station accessed by the UE acquires the macro base station sends the information to the UE. Control information of the physical layer data channel; the small base station performs data transmission of the UE with the UE according to the control information of the physical layer data channel.
  • the macro base station directly sends the control information of the physical layer data channel to the UE, and the data transmission between the small base station and the UE can effectively avoid the signal interference caused by the macro base station and the small base station simultaneously transmitting data with the UE. The defect can effectively improve the data transmission efficiency of the UE.
  • the data channel and the control channel of the UE are simultaneously attached to the small micro base station.
  • the control channel also moves with the high speed of the UE, and the attached small base station is continuously replaced, resulting in discontinuous service.
  • the control channel is The macro base station is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby effectively ensuring the continuity of the service of the UE and improving the UE's service continuity. Business processing performance.
  • the macro base station 40 in the network side device of the foregoing embodiment shown in FIG. 30 may specifically adopt the macro base station in the foregoing embodiment shown in FIG. 27 and the subsequent optional embodiment;
  • the description of the foregoing embodiments may be omitted, and details are not described herein again.
  • FIG. 31 is a schematic structural diagram of a data transmission system according to an embodiment of the present invention.
  • the data transmission system of this embodiment may specifically include a macro base station 50, a small base station 51, and a UE 52.
  • the small base station 51 is a small base station to which the UE 52 accesses.
  • the macro base station 50, the small base station 51, and the UE 52 communicate with each other.
  • the macro base station 50 is configured to: when the UE needs to perform data transmission, send control information of the physical layer data channel to the UE 52; the macro base station 50 and the small base station 51 accessed by the UE 52 perform data transmission of the UE 52, and the data of the UE 52 is the physical layer of the UE 52. Data channel control data transmission data.
  • the small base station 51 is configured to acquire control information of a physical layer data channel that the macro base station 50 sends to the UE 52 when the UE 52 that accesses the small base station 51 needs to perform data transmission.
  • the control information that the small base station acquires the physical layer data channel may specifically pass. The two methods of the foregoing related method embodiments are not described herein again. Then, the small base station 51 and the UE 52 perform data transmission of the UE 52, and the data of the UE 52 is data transmitted by the UE according to the control information of the physical layer data channel.
  • the UE 52 is configured to receive control information of a physical layer data channel sent by the macro base station 50 when data transmission is required.
  • the UE 52 is further configured to perform data transmission with the accessed small base station 51 according to control information of the physical layer data channel.
  • the macro base station 50 in this embodiment may specifically adopt the macro base station in the embodiment shown in FIG. 27, and the small base station 51 may specifically use the small base station in the embodiment shown in FIG. 28, and the UE52 may specifically adopt the foregoing FIG. UE of the embodiment.
  • the macro base station 50 can also adopt the macro base station in the subsequent optional embodiment of the embodiment shown in FIG. 27, and the small base station 51 can also adopt the following optional embodiment in the embodiment shown in FIG.
  • the small base station, the UE 52 specifically uses the UE in the subsequent optional embodiment of the foregoing embodiment shown in FIG. 29, and may specifically implement the method by using the method of the foregoing related method embodiment.
  • the macro base station can directly transmit the control information of the physical layer data channel to the UE by using the macro base station, the small base station, and the UE, and the small base station can send the data channel to the UE, which can effectively
  • the defect that the macro base station and the small base station simultaneously perform signal transmission with the UE to avoid signal interference is avoided, so that the data transmission efficiency of the UE can be effectively improved.
  • the data channel and the control channel of the UE are simultaneously attached to the small micro base station.
  • the control channel also moves with the high speed of the UE, and the attached small base station is continuously replaced, resulting in discontinuous service.
  • the control channel is always attached to the macro base station. Since the coverage of the macro base station is much larger than that of the micro base station, even if the UE moves at a high speed, the UE does not need to change the attachment point of its control channel at any time, thereby being effective. Low guarantees the continuity of the service of the UE and improves the service processing performance of the UE.
  • the device embodiments described above are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located in one place. , or it can be distributed to at least two network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

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Abstract

本发明实施例提供一种数据传输方法及系统、宏基站、小基站与用户设备。方法包括:当用户设备需要进行数据传输时,宏基站向所述用户设备发送物理层数据信道的控制信息;所述宏基站与所述用户设备接入的小基站进行所述用户设备的数据的传输,所述用户设备的数据为所述用户设备根据所述物理层数据信道的控制信息传输的数据;所述小基站能够获取到宏基站向用户设备发送的物理层数据信道的控制信息。本发明的技术方案,宏基站将物理层数据信道的控制信息直接发送给用户设备,而通过小基站将数据发送给用户设备,能够有效地避免宏基站和小基站同时与用户设备进行数据传输造成信号干扰的缺陷,从而能够有效地提高用户设备的数据传输效率。

Description

数据传输方法及系统、 宏基站、 小基站与用户设备 技术领域
本发明实施例涉及通信技术领域, 尤其涉及一种数据传输方法及系 统、 宏基站、 小基站与用户设备。 背景技术
在第二代通信系统中, 用户设备 (User Equipment; UE) 的需要主要 是语音通话和短消息, 频谱效率的要求不高, 系统主要受制于覆盖区域的 大小, 因此普遍采用宏蜂窝的组网方式, 基站间距普遍较大, 这种组网方 式的成本较低。 但是随着第三、 四代通信系统的发展, 数据传输成为 UE 的新的需求, 尤其是实时视频的传输, 对频谱效率和网络吞吐量的要求大 幅度增加, 但是由于宏蜂窝的覆盖范围大, 容纳的 UE多, 使得宏蜂窝的 吞吐量会受到限制, 尤其在小区边缘, 由于信号噪声比 ( Signal-to-Noise Ratio, SNR)较低, 只能满足基本的业务需求, 而不能满足数据速率需求。 可见, 现有的宏基站组网方式不能满足数据传输的需求。 针对宏蜂窝的是 上述缺点, 可以降低小区半径, 采用微蜂窝的组网方式, 对宏蜂窝进行有 效地补充, 以在小区的以提高系统的吞吐量, 有效改善小区边缘 UE的 SNR。
在实现本发明的过程中, 发明人发现现有技术中至少存在如下问题: 现有技术中, 宏蜂窝与微蜂窝是独立的网络, 宏基站与小基站各自独立地 通过网络侧功能实体与网络侧进行交互, 在 UE固定或者移动速度较小的 时候, 小基站并宏基站和小基站分别同时与所服务的同一个 UE进行数据 传输, 小基站致使 UE与小基站传输的数据和 UE与宏基站传输的数据之 间互相干扰、 互相影响, 导致 UE传输数据的效率较低。 发明内容 本发明实施例提供一种数据传输方法及系统、 宏基站、 小基站与用户 设备, 用以解决现有技术中 UE与小基站传输的数据和 UE与宏基站传输 的数据之间互相干扰、 互相影响, 导致 UE传输数据的效率较低的缺陷, 能够提供一种数据传输效率较高的数据传输方案 。
第一方面, 本发明实施例提供一种数据传输方法, 包括:
当用户设备需要进行数据传输时, 宏基站向所述用户设备发送物理层 数据信道的控制信息;
所述宏基站与所述用户设备接入的小基站进行所述用户设备的数据 的传输, 所述用户设备的数据为所述用户设备根据所述物理层数据信道的 控制信息传输的数据; 所述小基站能够获取到所述宏基站向所述用户设备 发送的所述物理层数据信道的控制信息。
可选地, 在上述第一方面的一种可能实现方式中, 所述宏基站与所述 用户设备接入的小基站进行所述用户设备的数据的传输, 包括:
所述宏基站向所述小基站发送所述用户设备的下行数据, 以供所述小 基站在截取并解析所述物理层数据信道的控制信息之后, 根据所述物理层 数据信道的控制信息向所述用户设备发送所述用户设备的下行数据, 以使 得所述用户设备能够根据所述物理层数据信道的控制信息接收所述用户 设备的下行数据。
可选地, 在上述第一方面的另一种可能实现方式中, 所述宏基站与所 述用户设备接入的小基站进行所述用户设备的数据的传输, 包括:
所述宏基站接收所述小基站发送的所述用户设备的上行数据, 所述用 户设备的上行数据为所述用户设备根据所述物理层数据信道的控制信息 向所述小基站发送的。
可选地, 在上述第一方面的所有可能实现方式中, 所述物理层数据信 道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
可选地, 在上述第一方面的所有可能实现方式中, 所述宏基站和所述 小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方式通 信。
第二方面, 本发明实施例还提供一种数据传输方法, 包括: 当用户设备需要进行数据传输时, 所述用户设备接入的小基站获取宏 基站向所述用户设备发送的物理层数据信道的控制信息;
所述小基站根据所述物理层数据信道的控制信息与所述用户设备进 行所述用户设备的数据的传输。
可选地, 在上述第二方面的一种可能实现方式中, 所述小基站根据所 述物理层数据信道的控制信息与所述用户设备进行所述用户设备的数据 的传输, 包括:
所述小基站根据所述物理层数据信道的控制信息, 向所述用户设备发 送所述用户设备的下行数据, 以使得所述用户设备能够根据所述物理层数 据信道的控制信息接收所述用户设备的下行数据。
可选地, 在上述第二方面的另一种可能实现方式中, 所述小基站接收 所述用户设备根据所述物理层数据信道的控制信息发送的所述用户设备 的上行数据。
可选地, 在上述第二方面的所有可能实现方式中, 所述物理层数据信 道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
可选地, 在上述第二方面的所有可能实现方式中, 所述宏基站和所述 小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方式通 信。
第三方面, 本发明实施例还提供一种数据传输方法, 包括: 当用户设备需要进行数据传输时, 所述用户设备接收宏基站发送的物 理层数据信道的控制信息;
所述用户设备根据所述物理层数据信道的控制信息与所述用户设备 接入的小基站进行所述用户设备的数据的传输; 所述小基站能够获取到所 述宏基站向所述用户设备发送的所述物理层数据信道的控制信息。
可选地, 在上述第三方面的一种可能实现方式中, 所述用户设备根据 所述物理层数据信道的控制信息与所述用户设备接入的小基站进行所述 用户设备的数据的传输, 包括:
所述用户设备根据所述物理层数据信道的控制信息, 接收所述小基站 根据所述物理层数据信道的控制信息发送的所述用户设备的下行数据。 可选地, 在上述第三方面的另一种可能实现方式中, 所述用户设备根 据所述物理层数据信道的控制信息与所述用户设备接入的小基站进行所 述用户设备的数据的传输, 包括:
所述用户设备根据所述物理层数据信道的控制信息, 向所述小基站发 送所述用户设备的上行数据, 以供所述小基站向所述宏基站发送所述用户 设备的上行数据。
可选地, 在上述第三方面的所有可能实现方式中, 所述物理层数据信 道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
可选地, 在上述第三方面的所有可能实现方式中, 所述宏基站和所述 小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方式通 信。
第四方面, 本发明实施例还提供一种数据传输方法, 包括:
当用户设备需要进行数据传输时, 宏基站向所述用户设备发送物理层 数据信道的控制信息;
所述用户设备接入的小基站获取所述宏基站向所述用户设备发送的 物理层数据信道的控制信息;
所述宏基站与所述小基站进行所述用户设备的数据的传输, 所述小基 站根据所述物理层数据信道的控制信息与所述用户设备进行所述用户设 备的数据的传输。
第五方面, 本发明实施例还提供一种宏基站, 包括:
控制信息发送模块, 用于当用户设备需要进行数据传输时, 向所述用 户设备发送物理层数据信道的控制信息;
数据传输模块, 用于与所述用户设备接入的小基站进行所述用户设备 的数据的传输, 所述用户设备的数据为所述用户设备根据所述物理层数据 信道的控制信息传输的数据; 所述小基站能够获取到所述宏基站向所述用 户设备发送的所述物理层数据信道的控制信息。
可选地,在上述第五方面的一种可能实现方式中,所述数据传输模块, 具体用于向所述小基站发送所述用户设备的下行数据, 以供所述小基站在 截取并解析所述物理层数据信道的控制信息之后, 根据所述物理层数据信 道的控制信息向所述用户设备发送所述用户设备的下行数据, 以使得所述 用户设备能够根据所述物理层数据信道的控制信息接收所述用户设备的 下行数据。
可选地, 在上述第五方面的另一种可能实现方式中, 所述数据传输模 块, 所述数据传输模块, 具体用于接收所述小基站发送的所述用户设备的 上行数据, 所述用户设备的上行数据为所述用户设备根据所述物理层数据 信道的控制信息向所述小基站发送的。
可选地, 在上述第五方面的所有可能实现方式中, 所述物理层数据信 道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
可选地, 在上述第五方面的所有可能实现方式中, 所述宏基站和所述 小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方式通 信。
第六方面, 本发明实施例还提供一种小基站, 包括:
获取模块, 用于当接入所述小基站的用户设备需要进行数据传输时, 获取宏基站向所述用户设备发送的物理层数据信道的控制信息;
数据传输模块, 用于根据所述物理层数据信道的控制信息与所述用户 设备进行所述用户设备的数据的传输。
可选地,在上述第六方面的一种可能实现方式中,所述数据传输模块, 具体用于根据所述物理层数据信道的控制信息向所述用户设备发送所述 用户设备的下行数据, 以使得所述用户设备能够根据所述物理层数据信道 的控制信息接收所述用户设备的下行数据。
可选地, 在上述第六方面的另一种可能实现方式中, 所述数据传输模 块, 具体用于接收所述用户设备根据所述物理层数据信道的控制信息发送 的所述用户设备的上行数据。
可选地, 在上述第六方面的所有可能实现方式中, 所述物理层数据信 道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
可选地, 在上述第六方面的所有可能实现方式中, 所述宏基站和所述 小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方式通 信。
第七方面, 本发明实施例还提供一种用户设备, 包括:
控制信息接收模块, 用于当需要进行数据传输时, 接收宏基站发送的 物理层数据信道的控制信息;
数据传输模块, 用于根据所述物理层数据信道的控制信息与接入的小 基站传输数据; 所述小基站能够获取到所述宏基站向所述用户设备发送的 所述物理层数据信道的控制信息。
可选地,在上述第七方面的一种可能实现方式中,所述数据传输模块, 所述数据传输模块, 具体用于根据所述物理层数据信道的控制信息, 接收 所述小基站根据所述物理层数据信道的控制信息发送的所述用户设备的 下行数据。
可选地, 在上述第七方面的另一种可能实现方式中, 所述数据传输模 块, 具体用于根据所述物理层数据信道的控制信息, 向所述小基站发送所 述用户设备的上行数据, 以供所述小基站向所述宏基站发送所述用户设备 的上行数据。
可选地, 在上述第七方面的所有可能实现方式中, 所述物理层数据信 道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
可选地, 在上述第七方面的所有可能实现方式中, 所述宏基站和所述 小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方式通 信。
第八方面, 本发明实施例提供一种网络侧设备, 包括:
宏基站, 用于当用户设备需要进行数据传输时, 向所述用户设备发送 物理层数据信道的控制信息;
小基站, 用于获取所述宏基站向所述用户设备发送的物理层数据信道 的控制信息; 所述小基站为所述用户设备接入的小基站; 所述宏基站, 还用于与所述小基站进行所述用户设备的数据的传输, 所述小基站, 还用于根据所述物理层数据信道的控制信息与所述用户设备 进行所述用户设备的数据的传输。
第九方面, 本发明实施例还提供一种数据传输系统, 包括如上任一所 述的宏基站、 如上任一所述的宏基站以及如上任一所述的用户设备。
本发明实施例的数据传输方法及系统、 宏基站、 小基站与用户设备, 当用户设备需要进行数据传输时, 宏基站向用户设备发送物理层数据信道 的控制信息; 所述宏基站与所述用户设备接入的小基站、 所述小基站与所 述用户设备分别进行所述用户设备的数据的传输, 所述用户设备的数据为 所述用户设备根据所述物理层数据信道的控制信息传输的数据; 所述小基 站能够获取到所述宏基站向所述用户设备发送的所述物理层数据信道的 控制信息。 本发明实施例的技术方案, 宏基站将物理层数据信道的控制信 息直接发送给用户设备, 而通过小基站将数据发送给用户设备, 能够有效 地避免宏基站和小基站同时与用户设备进行数据传输造成信号干扰的缺 陷, 从而能够有效地提高用户设备的数据传输效率。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见 地, 下面描述中的附图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性的前提下, 还可以根据这些附图获得其他的 附图。
图 1为本发明一实施例提供的数据传输方法的流程图;
图 2为本发明另一实施例提供的数据传输方法的流程图;
图 3为本发明再一实施例提供的数据传输方法的流程图;
图 4为本发明又一实施例提供的数据传输方法的流程图;
图 5为本发明一实施例提供的网络架构示意图;
图 6为本发明另一实施例提供的网络架构示意图;
图 7为图 6所示的网络架构的功能实体图;
图 8为图 6所示的网络架构的的一种协议栈模型图; 图 9为图 6所示的网络架构的的另一种协议栈模型图; 图 10为图 6所示的网络架构中 Master eNB和 Small eNB之间通过频域 固定分开的调度模式图;
图 11为图 6所示的网络架构中 Master eNB和 Small eNB之间通过时域 固定分开的调度模式图;
图 12为图 6所示的网络架构中由 Master eNB进行灵活调度的调度模 式图;
图 13为图 6所示的网络架构中的 Master eNB范围内的移动性管理示 意图;
图 14为图 6所示的网络架构的使用状态图;
图 15为将本发明实施例的技术方案应用在 UMTS的网络制式下; 图 16为本发明再另一实施例提供的网络架构示意图;
图 17为图 16所示的网络架构中异站点间的载波汇聚的示意图; 图 18为图 16所示的网络架构中的隔帧调度的示意图;
图 19为本发明再又一实施例提供的网络架构示意图;
图 20为图 19所示的网络架构中异站点间的载波汇聚的示意图; 图 21为图 19所示的网络架构中的隔帧调度的示意图;
图 22为本发明又再一实施例提供的网络架构的结构示意图; 图 23为本发明实施例提供的 X2e接口的示意图;
图 24为 X2e接口的用户数据面的示意图;
图 25为 X2e接口的控制面的示意图;
图 26为本发明实施例提供的数据面的建立流程图;
图 27为本发明实施例提供的宏基站的结构示意图;
图 28为本发明实施例提供的小基站的结构示意图;
图 29为本发明实施例提供的 UE的结构示意图;
图 30为本发明实施例提供的网络侧设备的结构示意图;
图 31为本发明实施例提供的数据传输系统的结构示意图。 具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明 实施例中的附图, 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作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。
图 1为本发明一实施例提供的数据传输方法的流程图。如图 1所示,本实 施例的数据传输方法, 具体可以包括如下歩骤:
100、 当 UE需要进行数据传输时, 宏基站向 UE发送物理层数据信道的 控制信息;
本实施例中仅限定物理层数据信道的控制信息的传输。至于其他控制信息 的传输详细可以参考现有技术的记载, 在此不再赘述。
101、 宏基站与 UE接入的小基站进行 UE的数据的传输, UE的数据为 UE根据物理层数据信道的控制信息传输的数据。
本实施例中,小基站也能够获取到物理层数据信道的控制信息。具体可以 通过以下两种方式: 第一种方式、 宏基站向 UE发送物理层数据信道的控制 信息过程中, 小基站能够通过监听后获取到宏基站向 UE发送的物理层数据 信道的控制信息。 但是小基站获取该物理层数据信道的控制信息, 并不影响 UE接收宏基站发送的物理层数据信道的控制信息。也就是说, 即使小基站能 够获取到该物理层数据信道的控制信息, 但在其他通信正常的情况下, UE仍 然能够成功接收到该物理层数据信道的控制信息。 第二种方式为: 宏基站向 小基站发送该物理层数据信道的控制信息, 该种方式中, 宏基站和小基站之 间可以通过 X2e接口通信, 这样小基站可以通过 X2e接口接收到宏基站发送 的该物理层数据信道的控制信息。
本实施例的数据传输方法, 当 UE需要进行数据传输时, 宏基站向 UE发 送物理层数据信道的控制信息;宏基站与 UE接入的小基站进行 UE的数据的 传输, UE的数据为 UE根据物理层数据信道的控制信息传输的数据。 本实施 例的技术方案, 宏基站将物理层数据信道的控制信息直接发送给 UE, 宏基站 与 UE接入的小基站进行 UE的数据的传输,而使得小基站能够与 UE进行数 据传输, 能够有效地避免宏基站和小基站同时与 UE进行数据传输造成信号 干扰的缺陷, 从而能够有效地提高 UE的数据传输效率。
本实施例的数据传输方法, 当 UE需要进行数据传输时, 宏基站向 UE发 送物理层数据信道的控制信息;宏基站与 UE接入的小基站进行 UE的数据的 传输, UE的数据为 UE根据物理层数据信道的控制信息传输的数据。 本实施 例的技术方案, 宏基站将物理层数据信道的控制信息直接发送给 UE, 而通过 小基站与 UE进行数据传输,能够有效地避免宏基站和小基站同时与 UE进行 数据传输造成信号干扰的缺陷, 从而能够有效地提高 UE的数据传输效率。
而且现有技术中, UE的数据信道和控制信道同时附着在小微基站上, 当 UE高速移动时, 控制信道也随 UE的高速移动, 在不停的更换附着的 小基站, 导致业务不连续。 而采用本实施例的技术方案, 控制信道就始终 附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速移 动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE 的业务的连续性, 提高 UE的业务处理性能。
可选地, 在上述图 1所示实施例的歩骤 100"当 UE需要进行数据传输时, 宏基站向 UE 发送物理层数据信道的控制信息"之前, 还包括: 宏基站根据 UE反馈的信道测量信息获取物理层数据信道的控制信息。
需要说明的是, 上述实施例中的物理层数据信道的控制信息包括用于 UE 发送上行数据的物理上行链路控制信道 (Physical Uplink Control Channel; PUCCH ) 的控制信息和用于 UE 接收下行数据的物理下行链路控制信道 ( Physical Downlink Control Channel; PDCCH ) 的控制信息。
可选地, 在上述图 1所示实施例的歩骤 101"宏基站与 UE接入的小基站 进行 UE的数据的传输", 具体可以包括: 宏基站向小基站发送 UE的下行数 据, 以供小基站在截取并解析物理层数据信道的控制信息之后, 根据物理层 数据信道的控制信息向 UE发送 UE的下行数据, 以使得 UE能够根据物理层 数据信道的控制信息接收 UE 的下行数据。 例如该方案中的物理层数据信道 的控制信息即指的是 PDCCH的控制信息, 用于指示物理层下行数据信道的 控制信息。
可选地, 在上述图 1所示实施例的歩骤 101"宏基站与 UE接入的小基站 进行 UE的数据的传输", 具体可以包括: 宏基站接收小基站发送的 UE的上 行数据, UE的上行数据为 UE根据物理层数据信道的控制信息向小基站发送 的。 例如该方案中的物理层数据信道的控制信息即指的是 PUCCH的控制信 息, 用于指示物理层上行数据信道的控制信息。 进一歩可选地,上述实施例中的物理层数据信道的控制信息包括如下至少 一种: UE传输 UE的数据时所在的时频资源位置、 传输 UE的数据所采用的 传输模式、 调制方式和码率。
进一歩可选地,上述实施例中的宏基站和小基站之间采用同频组网、同制 式异频组网或者异制式异频组网方式通信。
通过采用上述实施例的技术方案, 宏基站将物理层数据信道的控制信 息直接发送给 UE, 而通过小基站与 UE进行数据传输, 能够有效地避免 宏基站和小基站同时与 UE进行数据传输造成信号干扰的缺陷, 从而能够 有效地提高 UE的数据传输效率。 而且采用本实施例的技术方案, 控制信 道就始终附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速移动, UE不需要随时改变其控制信道的附着点, 从而能够有效低 保证 UE的业务的连续性, 提高 UE的业务处理性能。
图 2为本发明另一实施例提供的数据传输方法的流程图。如图 2所示,本 实施例的数据传输方法, 具体可以包括如下歩骤:
200、 当 UE需要进行数据传输时, UE接入的小基站获取宏基站向 UE发 送的物理层数据信道的控制信息;
本实施例仅限定于获取物理层数据信道的控制信息。至于其他控制信息的 传输详细可以参考现有技术的记载, 在此不再赘述。
本实施例中,小基站获取到物理层数据信道的控制信息具体可以通过以下 两种方式: 第一种方式、 宏基站向 UE发送物理层数据信道的控制信息过程 中, 小基站能够通过监听后获取到宏基站向 UE发送的物理层数据信道的控 制信息。 但是小基站获取该物理层数据信道的控制信息, 并不影响 UE接收 宏基站发送的物理层数据信道的控制信息。 也就是说, 即使小基站能够获取 到该物理层数据信道的控制信息, 但在其他通信正常的情况下, UE仍然能够 成功接收到该物理层数据信道的控制信息。 第二种方式为: 宏基站也向小基 站发送该物理层数据信道的控制信息, 该种方式中, 宏基站和小基站之间可 以通过 X2e接口通信, 这样小基站可以通过 X2e接口接收到宏基站发送的该 物理层数据信道的控制信息。
201、 小基站根据物理层数据信道的控制信息与 UE进行 UE的数据的传 输。 本实施例的数据传输方法, 当 UE需要进行数据传输时, UE接入的小基 站获取宏基站向 UE发送的物理层数据信道的控制信息; 小基站根据物理层 数据信道的控制信息与 UE进行 UE的数据的传输。本实施例的技术方案,宏 基站将物理层数据信道的控制信息直接发送给 UE, 而通过小基站与 UE进行 数据传输, 能够有效地避免宏基站和小基站同时与 UE进行数据传输造成信 号干扰的缺陷, 从而能够有效地提高 UE的数据传输效率。
而且现有技术中, UE的数据信道和控制信道同时附着在小微基站上, 当 UE高速移动时, 控制信道也随 UE的高速移动, 在不停的更换附着的 小基站, 导致业务不连续。 而采用本实施例的技术方案, 控制信道就始终 附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速移 动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE 的业务的连续性, 提高 UE的业务处理性能。
可选地,上述图 2所示实施例中的物理层数据信道的控制信息为宏基站根 据 UE反馈的信道测量信息获取的。
同理,需要说明的是,上述实施例中的物理层数据信道的控制信息包括用 于 UE发送上行数据的 PUCCH的控制信息和用于 UE接收下行数据的 PDCCH 的控制信息。
可选地,上述图 2所示实施例中的歩骤 201"小基站与 UE进行 UE的数据 的传输", 具体可以包括: 小基站根据物理层数据信道的控制信息, 向 UE发 送 UE的下行数据, 以使得 UE能够根据物理层数据信道的控制信息接收 UE 的下行数据。
进一歩可选地, 在小基站根据物理层数据信道的控制信息向 UE发送 UE 的下行数据之前, 还可以包括: 小基站接收宏基站发送的 UE 的下行数据。 例如该方案中的物理层数据信道的控制信息即指的是 PDCCH 的控制信息, 用于指示物理层下行数据信道的控制信息。
可选地, 上述图 2所示实施例中的歩骤 201"小基站根据物理层数据信道 的控制信息与 UE进行 UE的数据的传输", 具体可以包括: 小基站接收 UE 根据物理层数据信道的控制信息发送的 UE 的上行数据。 例如该方案中的物 理层数据信道的控制信息即指的是 PUCCH 的控制信息, 用于指示物理层上 行数据信道的控制信息。 进一歩可选地,在小基站接收 UE根据物理层数据信道的控制信息发送的 UE的上行数据之后, 还可以包括: 小基站向宏基站发送 UE的上行数据。
进一歩可选地,上述实施例中的物理层数据信道的控制信息包括如下至少 一种: UE传输 UE的数据时所在的时频资源位置、 传输 UE的数据所采用的 传输模式、 调制方式和码率。
进一歩可选地,上述实施例中的宏基站和小基站之间采用同频组网、同制 式异频组网或者异制式异频组网方式通信。
通过采用上述实施例的技术方案, 宏基站将物理层数据信道的控制信 息直接发送给 UE, 而通过小基站与 UE进行数据传输, 能够有效地避免 宏基站和小基站同时与 UE进行数据传输造成信号干扰的缺陷, 从而能够 有效地提高 UE的数据传输效率。 而且采用本实施例的技术方案, 控制信 道就始终附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速移动, UE不需要随时改变其控制信道的附着点, 从而能够有效低 保证 UE的业务的连续性, 提高 UE的业务处理性能。
图 3为本发明再一实施例提供的数据传输方法的流程图。如图 3所示,本 实施例的数据传输方法, 具体可以包括:
300、当 UE需要进行数据传输时, UE接收宏基站发送的物理层数据信道 的控制信息;
301、 UE根据物理层数据信道的控制信息与 UE接入的小基站进行 UE的 数据的传输。
本实施例中,小基站也能够获取到物理层数据信道的控制信息。具体可以 通过以下两种方式: 第一种方式、 宏基站向 UE发送物理层数据信道的控制 信息过程中, 小基站能够通过监听后获取到宏基站向 UE发送的物理层数据 信道的控制信息。 但是小基站获取该物理层数据信道的控制信息, 并不影响 UE接收宏基站发送的物理层数据信道的控制信息。也就是说, 即使小基站能 够获取到该物理层数据信道的控制信息, 但在其他通信正常的情况下, UE仍 然能够成功接收到该物理层数据信道的控制信息。 第二种方式为: 宏基站向 小基站发送该物理层数据信道的控制信息, 该种方式中, 宏基站和小基站之 间可以通过 X2e接口通信, 这样小基站可以通过 X2e接口接收到宏基站发送 的该物理层数据信道的控制信息。 本实施例的数据传输方法, 当 UE需要进行数据传输时, UE接收宏基站 发送的物理层数据信道的控制信息; UE根据物理层数据信道的控制信息与 UE接入的小基站进行 UE的数据的传输。 本实施例的技术方案, 宏基站将物 理层数据信道的控制信息直接发送给 UE,而通过小基站与 UE进行数据传输, 能够有效地避免宏基站和小基站同时与 UE进行数据传输造成信号干扰的缺 陷, 从而能够有效地提高 UE的数据传输效率。
而且现有技术中, UE的数据信道和控制信道同时附着在小微基站上, 当 UE高速移动时,控制信道也随 UE的高速移动,在不停的更换附着的小基站, 导致业务不连续。 而采用本实施例的技术方案, 控制信道就始终附着在宏基 站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速移动, UE不需要 随时改变其控制信道的附着点, 从而能够有效低保证 UE 的业务的连续性, 提高 UE的业务处理性能。
可选地, 上述图 3所示实施例中的歩骤 300"当 UE需要进行数据传输时, UE接收宏基站发送的物理层数据信道的控制信息"之前,还可以包括: UE向 宏基站反馈的信道测量信息, 以供宏基站根据信道测量信息获取物理层数据 信道的控制信息。 同理, 本实施例中的物理层数据信道的控制信息包括用于 UE发送上行数据的 PUCCH的控制信息和用于 UE接收下行数据的 PDCCH 的控制信息。
可选地,上述图 3所示实施例中的歩骤 302"UE根据物理层数据信道的控 制信息与 UE接入的小基站进行 UE的数据的传输",具体可以包括: UE根据 物理层数据信道的控制信息, 接收小基站根据物理层数据信道的控制信息发 送的 UE 的下行数据。 例如该方案中的物理层数据信道的控制信息即指的是 PDCCH的控制信息, 用于指示物理层下行数据信道的控制信息。
可选地,上述图 3所示实施例中的歩骤 302"UE根据物理层数据信道的控 制信息与 UE接入的小基站进行 UE的数据的传输",具体可以包括: UE根据 物理层数据信道的控制信息, 向小基站发送 UE 的上行数据, 以供小基站向 宏基站发送 UE 的上行数据。 例如该方案中的物理层数据信道的控制信息即 指的是 PUCCH的控制信息, 用于指示物理层上行数据信道的控制信息。
进一歩可选地,上述实施例中的物理层数据信道的控制信息包括如下至少 一种: UE传输 UE的数据时所在的时频资源位置、 传输 UE的数据所采用的 传输模式、 调制方式和码率。
进一歩可选地,上述实施例中的宏基站和小基站之间采用同频组网、同制 式异频组网或者异制式异频组网方式通信。
通过采用上述实施例的技术方案,宏基站将物理层数据信道的控制信息直 接发送给 UE, 而通过小基站与 UE进行数据传输, 能够有效地避免宏基站和 小基站同时与 UE进行数据传输造成信号干扰的缺陷, 从而能够有效地提高 UE的数据传输效率。而且采用本实施例的技术方案, 控制信道就始终附着在 宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速移动, UE不 需要随时改变其控制信道的附着点, 从而能够有效低保证 UE 的业务的连续 性, 提高 UE的业务处理性能。
需要说明的是,上述本发明上述各实施例中的宏基站与小基站之间采用扩 展的 X2e接口或者光纤互相通信, 即表示宏基站和小基站之间即可以采用无 线通信也可以采用有线通信。上述实施例中的小基站可以为 IEEE 802.16m标 准中广泛讨论的 Femtocell (微微小区) , 或者 3GPP中的 HomeNodeB (家用 基站) 。 在一个实施例中, 小基站也可以为宏基站覆盖范围内的扇区或者微 基站。
对于上述实施例的技术方案,宏基站可以实现对其覆盖范围内的小基站进 行统一管理, 小基站通过对应的接口 (X2e 或是光纤) 连接到宏基站, 接收 来自宏基站的用户数据, 并监听宏基站覆盖范围下附着到小基站的 UE 的物 理层数据信道的控制信息, 即宏基站覆盖下的所有 UE 的物理层数据信道的 控制信息由宏基站统一调度, 小基站仅仅发送数据或是数据和宏基站控制信 息的镜像。
图 4为本发明又一实施例提供的数据传输方法的流程图。本实施例在网络 侧设备侧描述本发明的技术方案。 如图 4所示, 本实施例的数据传输方法, 具体可以包括如下歩骤:
400、 当 UE需要进行数据传输时, 宏基站向 UE发送物理层数据信道的 控制信息;
40K UE接入的小基站获取宏基站向 UE发送的物理层数据信道的控制信 息;
402、 宏基站与上述小基站进行 UE数据的传输, 小基站根据物理层数据 信道的控制信息与 UE进行 UE的数据的传输。
本实施例中,小基站获取到物理层数据信道的控制信息具体可以通过以下 两种方式: 第一种方式、 宏基站向 UE发送物理层数据信道的控制信息过程 中, 小基站能够通过监听后获取到宏基站向 UE发送的物理层数据信道的控 制信息。 但是小基站获取该物理层数据信道的控制信息, 并不影响 UE接收 宏基站发送的物理层数据信道的控制信息。 也就是说, 即使小基站能够获取 到该物理层数据信道的控制信息, 但在其他通信正常的情况下, UE仍然能够 成功接收到该物理层数据信道的控制信息。 第二种方式为: 宏基站也向小基 站发送该物理层数据信道的控制信息, 该种方式中, 宏基站和小基站之间可 以通过 X2e接口通信, 这样小基站可以通过 X2e接口接收到宏基站发送的该 物理层数据信道的控制信息。
本实施例的数据传输方法, 当 UE需要进行数据传输时, 宏基站向 UE发 送物理层数据信道的控制信息; UE接入的小基站获取宏基站向 UE发送的物 理层数据信道的控制信息; 小基站根据物理层数据信道的控制信息与 UE进 行 UE 的数据的传输。 本实施例的技术方案, 宏基站将物理层数据信道的控 制信息直接发送给 UE, 而通过小基站与 UE进行数据传输, 能够有效地避免 宏基站和小基站同时与 UE进行数据传输造成信号干扰的缺陷, 从而能够有 效地提高 UE的数据传输效率。
需要说明的是,上述图 4所示实施例在网络侧描述本发明的技术方案,该 技术方案的具体实现方式与上述图 1、 图 2和图 3所示实施例的实现机制相 同, 详细可以参考上述图 1、 图 2和图 3所示实施例的记载, 在此不再赘述。 且上述图 1、 图 2和图 3所示实施例的后续可选技术方案, 也可以作为该图 4 所示实施例的可选技术方案, 形成图 4所示实施例的可选实施例, 详细可以 参考上述图 1、 图 2和图 3所示实施例的后续可选实施例, 在此不再赘述。
图 5为本发明一实施例提供的网络架构示意图。如图 5所示,本实施例的 网络架构图以应用在长期演进(Long Term Evolution; LTE)系统中为例。 其 中宏基站为 Master eNB, 小基站为 small eNB。实际应用中, 本实施例的网络 架构还可以应用在其他如 UMTS等网络中。
如图 5所示, Master eNB与后端的服务(Serving) 网关(Gateway; GW) 和移动性管理单元 (Mobile management Element; MME) 相连接, 对于一个 Master eNB的覆盖范围, 存在一个或一个以上的 small eNB, 这些 small eNB 通过(X2e或是光纤)连接到 Master eNB。 图 5所示实施例以 Master eNB下 覆盖有三个 small eNB为例。 本实施例的网络架构中, Master eNB作为 small eNB的数据通道汇聚节点和控制信息发送节点, 为所有的 small eNB发送附 着到其上面 UE的物理层数据信道的控制信息; 同时, Master eNB将发送到 所有的 small eNB发送附着到其上面 UE的数据通过 X2e接口发送到 small eNB, small eNB通过监听 Master eNB发送的物理层数据信道的控制信息或通 过 X2e口接收来自 Master eNB发送的控制信息, 确定 UE数据信道的发送位 置, 从而发送对应的数据信道到各个 UE。
对于如图 5所示的 Master eNB和 small eNB之间, 可以部署多种不同的 制式, 如下述表 1所示为 Master eNB和 small eNB可以部署的网络制式。 其 中 L指的是 LTE、 G指的是 GSM、 U指的是 UMTS, 频率的单位为 Mhz, Master eNB采用 Macro表示, small eNB采用 Pico表示。
表 1
Figure imgf000019_0001
图 6为本发明另一实施例提供的网络架构示意图。图 6在图 5所示实施例 的基础上, 提供一种 Master eNB和所附属的 small eNB之间工作在相同的频 点不需要 UE支持载波汇聚, 即图 6所示的 Master eNB和 small eNB之间采 用同频组网的架构。
根据图 6所示的网络架构,可以得到对应的如图 7所示的网络架构的功能 实体图。 如图 7所示, MME, 用于实现部分移动性管理功能下移, 只负责跨 Master eNB移动时的移动性管理的功能; Serving GW,用于实现对达到 Small eNB的数据汇聚到 Master eNB的功能; Master eNB,用于增加数据汇聚功能, 即 Serving GW Agent功能, 作为所属范围内的 Small eNB的数据汇聚节点; 增加移动性管理功能, 即 MME Agent功能, 作为所属范围内的 Small eNB、 Master eNB附着 UE进行统一的移动性管理; 扩大 UE调度范围内, 对所属
UE进行统一的联合调度; 生成统一的物理层数据信道的控制信息; 本身附着 UE的数据信道。 Small eNB: 仅仅包含数据信道来发送数据的功能, 以及可 选的物理层数据信道的控制信息镜像 (获得物理层数据信道的控制信息的宏 分集增益) 的功能。
对于上述图 6所示的网络架构,对应的可以采用如下图 8和图 9所示的协 议栈模型。
在图 8所示的协议栈模型中, small eNB仅仅实现物理层 (PHY层) , 在 图 8所示的模型中, small eNB仅仅实现 PHY层, 即 small eNB仅仅负责数 据的发送, 可以进一歩减少 small eNB的成本。
对 small eNB 混合自动重传请求(Hybrid automatic repeat request; HARQ ) 的影响, 分为如下两种情况:
( 1 )确认(Acknowledge; ACK)反馈使用物理层数据信道的控制信息传 输; HARQ直接在 Master eNB和 UE之间实现。
(2) ACK反馈可以与 PDSCH数据复用, small eNB需要将 HARQ反馈 信息解码后发送到 Master eNB, 需要扩展当前的 X2接口, 对标准影响大。
对 small eNB自动重传请求 ( automatic repeat request; ARQ )的影卩向, Small eNB无 ARQ功能, ARQ直接在 Master eNB和 UE之间实现。
使用该协议栈模型可以降低 Small eNB的成本。
在图 9所示的协议栈模型中, small eNB实现 PHY以上层次。 在图 9所 示的模型中, small eNB仅仅实现PHY层到PDCP层次, S卩 small - eNB接收 来自 Master eNB的数据发送, 按照自己的模式进行数据发送。
对 small eNB HARQ的影响, 分为两种情况:
(a) ACK反馈使用物理层数据信道的控制信息传输: Master eNB需要将 HARQ反馈信息解码后通知到 Small eNB, 需要扩展当前的 X2接口, 对标准 影响大。
(b) ACK反馈与 PDSCH数据复用: small eNB需要将 HARQ反馈信息 解码后发送到 Master eNB, 需要扩展当前的 X2接口, 对标准影响大。 对 small eNB ARQ的影响
ARQ直接在 small eNB和 UE之间实现。
使用该协议栈模型的好处是, small eNB具有上层处理能力, 方便部署, 同时对于 small eNB和 Master eNB之间的接口影响小, 需要的传输数据率也 小。
对于图 6所示的网络架构的调度模式, 可以包括如下几种 case。
Casel : Master eNB和 Small eNB之间通过频域固定分开。如图 10所示为 图 6所示的网络架构中 Master eNB和 Small eNB之间通过频域固定分开的调 度模式图。
对于 easel资源调度模式, 对于 Master eNB和 Small eNB下的 UE, 分别 为其分配资源, 对于图 6所示的场景, 对于完整的发送频谱, 进一歩进行划 分, 对于 LTE中每个传输子帧, 将前面 n (0<n<=4)个 OFDM符号, 和整个 频谱 fD, 作为物理层数据信道的控制信息的传输资源, 由 Master eNB统一发 送; 将剩下的 OFDM符号用于传输用户的数据信道, 对于用于传输数据信道 的 OFDM符号, 进一歩按照频谱粒度, 将 f0划分为 fl、 f2和 β三份资源, 其中 fl用于传输附着于 Master eNB的用户数据信道, f2用于传输附着于 Small eNBl和 Small eNB2的用户数据信道, f3用于传输附着于 Small eNB3的用户 数据信道。 fl、 f2和 β的划分原则可以根据不同基站下附着的 UE通信数据 的比率进行划分, 附着 UE 比率高的基站, 对应的频谱资源更多。 其中 UE 通信数据的比率可以根据各个基站下需要传输的总的 UE的数据比例来划分。
其中, 对于 small eNBl和 small eNB2由于位置较远, 可以使用相同的频 率 f2。
Case 2: Master eNB和 Small eNB之间通过时域固定分开。 如图 11所示 为图 6所示的网络架构中 Master eNB和 Small eNB之间通过时域固定分开的 调度模式图。
对于 case2资源调度模式, 对于 Master eNB和 Small eNB下的 UE, 分别 为其分配资源, 对于图 6所示的场景, 对于完整的发送频谱, 进一歩进行划 分, 将 LTE中每 3个传输子帧作为一个传输单元进行传输, 对于每个子帧将 前面 n (0<n<=4)个 OFDM符号, 和作为物理层数据信道的控制信息的传输 资源, 由 Master eNB统一发送; 将子帧 m=0中剩余的 OFDM符号, 用于传 输 Master eNB用户的数据信道; 将子帧 m=l中剩余的 OFDM符号, 用于传 输 Small eNBl和 Small eNB2的用户数据信道用户的数据信道; 将子帧 m=2 中剩余的 OFDM符号, 用于传输 Small eNB3用户的数据信道;
对于 small - eNBl和 small - eNB2由于位置较远,可以使用相同的时域资 源。
Case 3: 由 Master eNB进行灵活调度的调度模式。 如图 12所示为图 6所 示的网络架构中由 Master eNB进行灵活调度的调度模式图。
如下图所示,于 case2资源调度模式,对于 Master eNB和 Small eNB下的 UE, 对于图 6所示的场景, 对于完整的发送频谱, 将 LTE中每 3个传输子帧 作为一个传输单元进行传输, 对于每个子帧将前面 n (0<n<=4)个 OFDM符 号,和作为物理层数据信道的控制信息的传输资源,由 Master eNB统一发送; 对于每个子帧剩余的 OFDM符号, 通过 Master eNB进行灵活的分配, 如图 中所示,不同的资源块表示方式代表分配给不同的 eNB进行数据信道的发送, 每个 eNB下资源分配的多少, 由 Master eNB根据各个 eNB下附着的 UE进 行灵活分配。
对于上述图 6所示的网络架构的移动性管理, 当 UE在属于同一 Master eNB范围内的 Small eNB之间、 Master eNB和 Small eNB之间移动时, 可以 通过调度的方式来进行不同接入站点。 图 13 为图 6 所示的网络架构中的 Master eNB范围内的移动性管理示意图。如图 13所示, UE在不同的 eNB下, 分别被调度了不同的资源(如图中所示, 标识的不同框代表在不同的 eNB下 对应分配的数据信道传输资源) , 因此, 采用 Master eNB范围内的移动性管 理, 不需要额外的切换信令, 加快了 UE的切换速度。
图 14为图 6所示的网络架构的使用状态图。如图 14所示,在网络架构中 增加考虑 UE,以考虑图 6所示的网络架构情况的下的控制信道分集增益情况。 如图 14所示, Small eNB在 Master eNB发送物理层数据信道的控制信息时, 可以同时发送物理层数据信道的控制信息的镜像, 即 Master eNB完全相同的 物理层数据信道的控制信息, 这样在 UE处将同时接收到来自 Master eNB和 Small eNB的物理层数据信道的控制信息,达到宏分集接收的效果,增强 Small eNB覆盖范围内的物理层数据信道的控制信息接收质量。
上述实施例均在 LTE系统的场景下描述本发明实施例的技术方案。同理, 上述本发明实施例的技术方案亦可以应用到其他网络场景中。例如图 15为本 发明再一实施例提供的网络架构示意图。图 15为将本发明实施例的技术方案 应用在 UMTS的网络制式下。 如图 15所示, UMTS下, 由于存在无线网络 控制器(Radio Network Controller; RNC)节点, 因此对应的控制功能可以集 中到 RNC, 如联合资源调度、 CoMP等。
由于在 UMTS制式下, 对于 UE而言, 同一 Master eNB覆盖范围下的所 有 Small eNB和 Master eNB使用同样的码字作为区分基站的标识, 用该码字 加扰后, 发送对应的数据, 物理层数据信道的控制信息可以由 Master eNB在 Master eNB覆盖范围内统一发送。
图 16为本发明再另一实施例提供的网络架构示意图。图 16在图 5所示实 施例的基础上, 提供一种 Master eNB和所附属的 Small eNB之间工作在不同 的频点需要 UE支持载波汇聚,即图 16所示的 Master eNB和 Small eNB之间 采用同制式异频组网的架构。
图 17为图 16所示的网络架构中异站点间的载波汇聚的示意图。 如上图 17所示,不同的站点分配不同的载波, 多个频率的载波在 Master eNB可以聚 合起来服务 UE, Master eNB统一发送 UE控制信息, 指示 UE在特定的载波 接收或是发送数据, 即对应到特定的 Small eNB进行数据的收发。 这样, 可 以合理的规划频率资源, 通过载波的聚合, 统一的物理层数据信道的控制信 息, 提高频谱的使用效率。
进一歩, 为了提升资源利用率, 可以将调度提前一帧, 即如图 18所示的 隔帧调度的示意图。 异站点的载波聚合在技术上的可行性待进一歩分析、 仿 真和验证,包括 CP长度设计等内容。其余实施方式与上述 Master eNB和 small eNB之间采用同频组网的架构的情况相同, 详细可以参考上述同频组网的架 构的相关实施例, 在此不再赘述。
图 19为本发明再又一实施例提供的网络架构示意图。图 19在图 5所示实 施例的基础上, 提供一种 Master eNB和所附属的 Small eNB之间工作在不同 的频点需要 UE支持载波制式, 需要 UE支持异制式间的载波汇聚。 即图 19 所示的 Master eNB和 Small eNB之间采用异制式异频组网的架构。
图 19所示, Master eNB与后端的 Serving GW和 MME相连接,工作 LTE 制式下, 在一个 Master eNB的覆盖范围, 存在一个或一个以上的工作在其他 知识的 small eNB,如上图 19所示 small eNB分别工作在 UMTS和 GSM制式 下,这些 small eNB通过(X2e或是光纤)连接到 Master eNB。这样 Master eNB 作为 small eNB的数据通道汇聚节点和控制信息发送节点, 为所有的小基站 发送附着到其上面 UE的物理层数据信道的控制信息 (LTE制式, LTE物理 层数据信道的控制信息格式); Master eNB以 LTE制式发送数据信道到附着 到其上的 UE; 同时, Master eNB将发送到所有的小基站发送附着到其上面 UE的数据通过 X2e接口发送到小基站, 小基站通过监听 Master eNB发送的 物理层数据信道的控制信息或通过 X2e口接收来自 Master eNB发送的控制信 息,确定用户数据信道的发送位置,从而小基站通过各自不同的制式(UMTS、 GSM) 发送对应的数据信道到各个 UE。
图 20为图 19所示的网络架构中异站点间的载波汇聚的示意图。 进一歩, 为了提升资源利用率, 可以将调度提前一帧, 即如图 21所示的隔帧调度的示 意图。 其余实施方式与上述 Master eNB和 small eNB之间采用同频组网的架 构的情况相同, 详细可以参考上述同频组网的架构或者同制式异频组网的架 构的相关实施例, 在此不再赘述。
图 22为本发明又再一实施例提供的网络架构的结构示意图。如图 22所示, 本实施例提供的网络架构中, 可以实现宏基站对其覆盖范围内的小基站进行 统一管理, 小基站通过对应的接口 (X2e或是 CPRI) 连接到宏基站, 接收来 自宏基站的用户数据和控制信息;对宏基站覆盖范围下附着到小基站的终端, 高速移动的 UE接收来自宏基站的物理层数据信道的控制信息, 小基站保留 物理层数据信道的控制信息, 用于为小基站下低速移动的 UE服务。
在 LTE中, Master eNB与后端的 Serving GW和 MME相连接, 对于一个 Master eNB的覆盖范围, 存在一个或一个以上的 LTE small eNB, 这些 small eNB通过(X2e或是光纤)连接到 Master eNB。这样 Master eNB作为 small eNB 的数据通道汇聚节点和控制信息发送节点, 同时, 保留 small eNB物理层数 据信道的控制信息发送功能。对于 small eNB下的 UE进行进一歩的分类, 分 为高速移动终端和固定终端 (或低速移动终端) : 对于高速移动终端, 由于 其可能在 Master eNB和不同的 small eNB之间频繁移动, 因此由 Master eNB 发送其对应的物理层数据信道的控制信息, small eNB 发送其对应的数据信 道; 对于固定终端 (或低速移动终端) 由 small eNB发送其对应的物理层数 据信道的控制信息和数据。 小基站上所发送的 UE数据信道, 其数据来源于 Master eNB通过 X2e接口发送到小基站的 UE数据。 小基站通过监听 Master eNB发送的物理层数据信道的控制信息或通过 X2e口接收来自 Master eNB发 送的控制信息, 确定用户数据信道的发送位置。
采用上述技术方案, 由于物理层数据信道的控制信息的集中化, 即需要接 收的 UE数目变大, 会使得控制信道的尺寸变大, 本实施例的网络架构的技 术方案, 可以兼顾效率和控制信道的尺寸。
下面针对以上各实施例的网络架构,介绍一下本发明实施例中, 当宏基站 与小基站之间的接口为 X2e接口时的情况。图 23为本发明实施例提供的 X2e 接口的示意图。
在用户数据面上, 现有技术中的 X2接口中, 可以支持用户数据面 PDUs 的传输, 采用的 GTP封装用户数据, 但是目前的 X2接口主要用于传输切换 时的缓存数据, 来保证数据的完整性。
而本发明实施例的技术方案中, 需要将 Small eNB的数据由 Master eNB 通道 X2e口来传输,即 Master eNB需要有对应的分类器,来选择到特定 small eNB的数据,通过 X2e接口(X2 extend扩展 X2接口 M专输到对应的 small eNB。 如图 24所示为 X2e接口的用户数据面的示意图。
对于控制面,控制面主要由各种 TLV (Type Length Value,类型长度取值) 组成,例如 DCI type (下行信道指示类型 ), Allocated PRB (分配 PRB数目), PRB location (PRB位置)等, 这些 TLV串联起来形成 Control PDU (控制信 息数据包单元) , 然后通过下层的各个封装, 传输的 small eNB。 或者, small eNB直接解析 Master eNB发送的物理层数据信道的控制信息, 来获得 UE数 据信道对应的控制信息。 如图 25所示为 X2e接口的控制面的示意图。
图 26为本发明实施例提供的数据面的建立流程图。 基于上述实施例的技 术方案,如图 26所示实施例提供一种基于本发明上述实施例的网络架构的数 据面的建立方式。 如图 26所示, 具体可以包括如下歩骤:
1、 主基站 Master eNB 发送系统广播消息 (system information advertisement);
2、 UE在主基站发起入网过程 (Network Entry at Master eNB );
3、 UE通过主基站 Master eNB与 MME完成鉴权(Authentication)过 程, MME生成对应的安全上下文和移动性管理上下文, 并向 Master eNB 发送生成的安全上下文和移动性管理上下文。
4、 UE通过主基站 Master eNB完成与 PCRF之间的 QoS授权, 网络侧获 得 UE相关的 QoS上下文信息;
5、 UE发起与小基站 Pico Celll之间的网络附着, 其中 UE是可不感知,
UE以为本身是在于主基站 Master eNB附着;
6、 网络侧 MME感知 UE所处的小基站 Pico Celll, 生成对应的 Pico安 全上下文并下发到小基站 Pico Celll ; 其中的 Pico安全上下文用于数据面加 密;
7、 主基站 Master eNB建立与 UE之间的控制面;
8、 PCRF 发起用户数据面承载 IP-CAN Bearer 的建立触发, 依次建立 PDN-GW与 Serving GW之间、 serving GW与主基站 Master eNB, 主基站 Master eNB与小基站 Pico Celll之间的数据面, 并最后完成小基站 Pico Celll 和 UE之间的无线空口数据面建立。
上述实施例详细介绍了本发明方法实施例以及可应用的场景,通过采用上 述实施例的技术方案, 宏基站可以实现对其覆盖范围内的小基站进行统一管 理, 宏基站小基站通过对应的接口 (X2e 或是光纤) 连接到宏基站, 接收来 自宏基站的用户数据, 并监听宏基站覆盖范围下附着到小基站的 UE 的用于 指示物理层数据信道的控制信息, 即宏基站覆盖下的所有 UE 的用于指示物 理层数据信道的控制信息由宏基站统一调度, 小基站仅仅发送数据信道或是 数据信道和宏基站物理层数据信道的控制信息的镜像。
本领域普通技术人员可以理解: 实现上述各方法实施例的全部或部分 歩骤可以通过程序指令相关的硬件来完成。 前述的程序可以存储于一计算 机可读取存储介质中。 该程序在执行时, 执行包括上述各方法实施例的歩 骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存 储程序代码的介质。
图 27为本发明实施例提供的宏基站的结构示意图。 如图 27所示, 本 实施例的宏基站包括控制信息发送模块 10和数据传输模块 11。
其中控制信息发送模块 10用于当 UE需要进行数据传输时, 向 UE发送 物理层数据信道的控制信息; 数据传输模块 11用于与 UE接入的小基站进行 UE的数据的传输, UE的数据为 UE根据控制信息发送模块 10发送给 UE的 物理层数据信道的控制信息传输的数据; 其中小基站也能够获取到宏基站向 UE发送的物理层数据信道的控制信息。例如小基站获取到物理层数据信道的 控制信息具体可以通过上述相关方法实施例的两种方式, 在此不再赘述。
本实施例的宏基站, 通过采用上述模块实现数据传输与上述相关方法 实施例的实现机制相同, 详细可以参考上述方法实施例的记载, 在此不再 赘述。
本实施例的宏基站,通过采用上述模块, 当 UE需要进行数据传输时, 宏基站向 UE发送物理层数据信道的控制信息; 宏基站与 UE接入的小基 站进行 UE的数据的传输, UE的数据为 UE根据物理层数据信道的控制信 息传输的数据。 本实施例的技术方案, 宏基站将物理层数据信道的控制信 息直接发送给 UE, 而通过小基站将数据信道发送给 UE, 能够有效地避免 宏基站和小基站同时与 UE进行数据传输造成信号干扰的缺陷, 从而能够 有效地提高 UE的数据传输效率。
而且现有技术中, UE的数据信道和控制信道同时附着在小微基站上, 当 UE高速移动时, 控制信道也随 UE的高速移动, 在不停的更换附着的 小基站, 导致业务不连续。 而采用本实施例的技术方案, 控制信道就始终 附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速移 动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE 的业务的连续性, 提高 UE的业务处理性能。
可选地, 在上述图 27所示的实施例的基础上, 上述宏基站中还可以 包括: 获取模块, 用于在控制信息发送模块向 UE发送物理层数据信道的 控制信息之前, 根据 UE反馈的信道测量信息生成物理层数据信道的控制 ^ I Ft自Θ、。
可选地, 在上述图 27所示的实施例的基础上, 数据传输模块 11具体 用于向小基站发送 UE的下行数据, 以供小基站在截取并解析物理层数据 信道的控制信息之后, 根据物理层数据信道的控制信息向 UE发送 UE的 下行数据, 以使得 UE能够根据物理层数据信道的控制信息接收 UE的下 行数据。
可选地, 在上述图 27所示的实施例的基础上, 数据传输模块 11还可 以具体用于接收小基站发送的 UE的上行数据, UE的上行数据为 UE根据 物理层数据信道的控制信息向小基站发送的。
进一歩可选地, 在上述图 27所示的实施例的基础上, 物理层数据信 道的控制信息包括如下至少一种: UE传输 UE的数据时所在的时频资源 位置、 传输 UE的数据所采用的传输模式、 调制方式和码率。
进一歩可选地, 在上述实施例的基础上, 宏基站和小基站之间采用同 频组网、 同制式异频组网或者异制式异频组网方式通信。
需要说明的是, 上述所有可选技术方案可以采用任意可以结合的方式 结合构成本发明的可选实施例, 在此不再一一举例。
上述宏基站中的模块在一个实施例中可以通过芯片来硬件实现。 例 如, 可以通过 FPGA ( Field Programmable Gate Array, 现场可编程门阵列) 来实现; 在另一个实施例中还可以通过调用特定函数的软件算法实现。 本 发明实施例不做特别的限定。
上述实施例的宏基站,通过采用上述模块,宏基站将物理层数据信道的控 制信息直接发送给 UE, 而通过小基站将数据信道发送给 UE, 能够有效地避 免宏基站和小基站同时与 UE进行数据传输造成信号干扰的缺陷, 从而能够 有效地提高 UE 的数据传输效率。 而且采用本实施例的技术方案, 控制信道 就始终附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高 速移动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE 的业务的连续性, 提高 UE的业务处理性能。
图 28为本发明实施例提供的小基站的结构示意图。 如图 28所示, 本 实施例的小基站, 具体可以包括: 获取模块 20和数据传输模块 21。
其中获取模块 20用于当接入小基站的 UE需要进行数据传输时,获取 宏基站向 UE发送的物理层数据信道的控制信息; 例如小基站获取宏基站 向 UE发送的物理层数据信道的控制信息具体可以通过上述相关方法实施 例的两种方式, 在此不再赘述。 数据传输模块 21与获取模块 20连接, 数 据传输模块 21用于基于获取模块 20获取的物理层数据信道的控制信息, 与 UE进行 UE的数据的传输。
本实施例的小基站, 通过采用上述模块实现数据传输与上述相关方法 实施例的实现机制相同, 详细可以参考上述方法实施例的记载, 在此不再 赘述。
本实施例的小基站, 通过采用上述模块当 UE需要进行数据传输时, UE接入的小基站获取宏基站向 UE发送的物理层数据信道的控制信息; 小基站根据物理层数据信道的控制信息与 UE进行 UE的数据的传输。 本 实施例的技术方案, 宏基站将物理层数据信道的控制信息直接发送给 UE, 而通过小基站将数据信道发送给 UE, 能够有效地避免宏基站和小基站同 时与 UE进行数据传输造成信号干扰的缺陷, 从而能够有效地提高 UE的 数据传输效率。
而且现有技术中, UE的数据信道和控制信道同时附着在小微基站 上, 当 UE高速移动时, 控制信道也随 UE的高速移动, 在不停的更换附 着的小基站, 导致业务不连续。 而采用本实施例的技术方案, 控制信道就 始终附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高 速移动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE的业务的连续性, 提高 UE的业务处理性能。
可选地, 在上述图 28所示实施例的基础上, 其中物理层数据信道的 控制信息为宏基站根据 UE反馈的信道测量信息获取的。
可选地, 在上述图 28所示实施例的基础上, 其中数据传输模块 21具 体可以与获取模块 20连接, 数据传输模块 21用于根据获取模块 20获取 的物理层数据信道的控制信息向 UE发送 UE的下行数据, 以使得 UE能 够根据物理层数据信道的控制信息接收 UE的下行数据。
进一歩可选地, 在上述所示实施例的基础上, 其中数据传输模块 21 还用于在根据获取模块 20获取的物理层数据信道的控制信息向 UE发送 UE的下行数据之前, 接收宏基站发送的 UE的下行数据。
可选地, 在上述图 28所示实施例的基础上, 其中数据传输模块 21具 体用于接收 UE根据物理层数据信道的控制信息发送的 UE的上行数据。
可选地, 在上述图 28所示实施例的基础上, 其中数据传输模块 21还 用于在接收 UE根据物理层数据信道的控制信息发送的 UE的上行数据之 后, 向宏基站发送 UE的上行数据。
进一歩可选地, 上述实施例中的物理层数据信道的控制信息包括如下 至少一种: UE传输 UE的数据时所在的时频资源位置、传输 UE的数据所 采用的传输模式、 调制方式和码率。
进一歩可选地, 在上述实施例的基础上, 宏基站和小基站之间采用同 频组网、 同制式异频组网或者异制式异频组网方式通信。
需要说明的是, 上述所有可选技术方案可以采用任意可以结合的方式 结合构成本发明的可选实施例, 在此不再一一举例。
上述小基站中的模块在一个实施例中可以通过芯片来硬件实现。 例 如, 可以通过 FPGA ( Field Programmable Gate Array, 现场可编程门阵列) 来实现; 在另一个实施例中还可以通过调用特定函数的软件算法实现。 本 发明实施例不做特别的限定。
上述实施例的小基站,通过采用上述模块,宏基站将物理层数据信道的控 制信息直接发送给 UE, 而通过小基站与 UE进行数据传输, 能够有效地避免 宏基站和小基站同时与 UE进行数据传输造成信号干扰的缺陷, 从而能够有 效地提高 UE 的数据传输效率。 而且采用本实施例的技术方案, 控制信道就 始终附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速 移动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE的 业务的连续性, 提高 UE的业务处理性能。
图 29为本发明实施例提供的 UE的结构示意图。 如图 29所示, 本实 施例的 UE, 具体可以包括: 控制信息接收模块 30和数据传输模块 31。
其中控制信息接收模块 30用于当需要进行数据传输时, 接收宏基站发送 的物理层数据信道的控制信息; 数据传输模块 31与控制信息接收模块 30连 接, 数据传输模块 31用于根据控制信息接收模块 30接收的物理层数据信道 的控制信息与接入的小基站传输数据; 小基站能够获取到宏基站向 UE发送 的物理层数据信道的控制信息。 例如小基站获取到物理层数据信道的控制信 息具体可以通过上述相关方法实施例的两种方式, 在此不再赘述。
本实施例的 UE, 通过采用上述模块实现数据传输与上述相关方法实 施例的实现机制相同, 详细可以参考上述方法实施例的记载, 在此不再赘 述。
上述 UE中的模块在一个实施例中可以通过芯片来硬件实现。 例如, 可以通过 FPGA (Field Programmable Gate Array, 现场可编程门阵列) 来 实现; 在另一个实施例中还可以通过调用特定函数的软件算法实现。 本发 明实施例不做特别的限定。
本实施例的 UE,通过采用上述模块当 UE需要进行数据传输时, UE接收 宏基站发送的物理层数据信道的控制信息; UE根据物理层数据信道的控制 信息与 UE接入的小基站进行 UE的数据的传输。本实施例的技术方案,宏基 站将物理层数据信道的控制信息直接发送给 UE,而通过小基站与 UE进行数 据传输, 能够有效地避免宏基站和小基站同时与 UE进行数据传输造成信号 干扰的缺陷, 从而能够有效地提高 UE的数据传输效率。
而且现有技术中, UE的数据信道和控制信道同时附着在小微基站 上, 当 UE高速移动时, 控制信道也随 UE的高速移动, 在不停的更换附 着的小基站, 导致业务不连续。 而采用本实施例的技术方案, 控制信道就 始终附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高 速移动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE的业务的连续性, 提高 UE的业务处理性能。
可选地, 在上述图 29所示实施例的基础上, 其中数据传输模块 31还 用于当需要进行数据传输时, 接收宏基站发送的物理层数据信道的控制信 息之前, 向宏基站反馈的信道测量信息, 以供宏基站根据信道测量信息获 取物理层数据信道的控制信息。
可选地, 在上述图 29所示实施例的基础上, 其中数据传输模块 31具 体用于根据控制信息接收模块 30接收的物理层数据信道的控制信息, 接 收小基站根据物理层数据信道的控制信息发送的 UE的下行数据。
可选地, 在上述图 29所示实施例的基础上, 其中数据传输模块 31具 体用于根据控制信息接收模块 30接收的物理层数据信道的控制信息, 向 小基站发送 UE的上行数据, 以供小基站向宏基站发送 UE的上行数据。
进一歩可选地, 上述实施例中物理层数据信道的控制信息包括如下至 少一种: UE传输 UE的数据时所在的时频资源位置、传输 UE的数据所采 用的传输模式、 调制方式和码率。
进一歩可选地, 在上述实施例的基础上, 宏基站和小基站之间采用同 频组网、 同制式异频组网或者异制式异频组网方式通信。
需要说明的是, 上述所有可选技术方案可以采用任意可以结合的方式 结合构成本发明的可选实施例, 在此不再一一举例。 上述实施例的小基站,通过采用上述模块,宏基站将物理层数据信道的控 制信息直接发送给 UE, 而通过小基站将数据信道发送给 UE, 能够有效地避 免宏基站和小基站同时与 UE进行数据传输造成信号干扰的缺陷, 从而能够 有效地提高 UE 的数据传输效率。 而且采用本实施例的技术方案, 控制信道 就始终附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高 速移动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE 的业务的连续性, 提高 UE的业务处理性能。
图 30为本发明实施例提供的网络侧设备的结构示意图。如图 30所示, 本实施例的网络侧设备包括: 宏基站 40和小基站 41。
其中宏基站 40用于当 UE需要进行数据传输时, 向 UE发送物理层数据 信道的控制信息; 小基站 41能够与宏基站 40进行通信连接, 该小基站 41用 于获取宏基站 40向 UE发送的物理层数据信道的控制信息; 例如小基站获取 到物理层数据信道的控制信息具体可以通过上述相关方法实施例的两种方 式, 在此不再赘述。 该小基站 41为 UE接入的小基站; 宏基站 40, 还用于与 小基站 41进行 UE的数据的传输, 小基站 41还用于根据物理层数据信道的 控制信息与 UE进行 UE的数据的传输。
本实施例的网络侧设备, 通过采用上述宏基站和小基站实现数据传输 与上述相关方法实施例的实现机制相同, 详细可以参考上述方法实施例的 记载, 在此不再赘述。
本实施例的网络侧设备, 通过采用上述宏基站和小基站当 UE需要进 行数据传输时, 宏基站向 UE发送物理层数据信道的控制信息; UE接入 的小基站获取宏基站向 UE发送的物理层数据信道的控制信息; 小基站根 据物理层数据信道的控制信息与 UE进行 UE的数据的传输。 本实施例的 技术方案, 宏基站将物理层数据信道的控制信息直接发送给 UE, 而通过 小基站与 UE进行数据传输, 能够有效地避免宏基站和小基站同时与 UE 进行数据传输造成信号干扰的缺陷, 从而能够有效地提高 UE的数据传输 效率。
而且现有技术中, UE的数据信道和控制信道同时附着在小微基站 上, 当 UE高速移动时, 控制信道也随 UE的高速移动, 在不停的更换附 着的小基站, 导致业务不连续。 而采用本实施例的技术方案, 控制信道就 始终附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高 速移动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE的业务的连续性, 提高 UE的业务处理性能。
需要说明的是, 上述图 30所示实施例的网络侧设备中的宏基站 40具 体可以采用上述图 27所示实施例及后续的可选实施例中的宏基站; 小基 站 41具体可以采用上述图 28所示实施例及后续的可选实施例中的小基 站, 纤细可以参考上述实施例的记载, 在此不再赘述。
图 31为本发明实施例提供的数据传输系统的结构示意图。如图 31所 示, 本实施例的数据传输系统, 具体可以包括宏基站 50、 小基站 51以及 UE52。 该小基站 51为 UE52接入的小基站。 宏基站 50、 小基站 51以及 UE52之间两两互相通信。
其中宏基站 50用于当 UE需要进行数据传输时, 向 UE52发送物理层 数据信道的控制信息; 宏基站 50与 UE52接入的小基站 51进行 UE52的 数据的传输, UE52的数据为 UE52物理层数据信道的控制信息传输的数 据。
小基站 51用于当接入小基站 51的 UE52需要进行数据传输时,获取宏基 站 50向 UE52发送的物理层数据信道的控制信息, 例如小基站获取到物理层 数据信道的控制信息具体可以通过上述相关方法实施例的两种方式, 在此不 再赘述。 然后小基站 51与 UE52进行 UE52的数据的传输, UE52的数据为 UE根据物理层数据信道的控制信息传输的数据。
UE52用于当需要进行数据传输时,接收宏基站 50发送的物理层数据 信道的控制信息; UE52还用于根据物理层数据信道的控制信息与接入的 小基站 51进行数据传输。
具体地, 本实施例的宏基站 50具体可以采用上述图 27所示实施例的 宏基站, 小基站 51具体可以采用上述图 28所示实施例的小基站, UE52 具体可以采用上述图 29所示实施例的 UE。
进一歩可选地, 宏基站 50还可以采用上述图 27所示实施例的后续可 选实施例中宏基站, 小基站 51还可以采用上述图 28所示实施例的后续可 选实施例中的小基站, UE52具体还采用上述图 29所示实施例的后续可选 实施例中的 UE, 并且, 具体可以采用上述相关方法实施例的方法实现数 据传输, 详细可以参考上述相关实施例的记载, 在此不再赘述。 本实施例的数据传输系统, 通过采用上述宏基站、 小基站和 UE, 宏 基站可以将物理层数据信道的控制信息直接发送给 UE, 而通过小基站可 以将数据信道发送给 UE, 能够有效地避免宏基站和小基站同时与 UE进 行数据传输造成信号干扰的缺陷, 从而能够有效地提高 UE的数据传输效 -。
而且现有技术中, UE的数据信道和控制信道同时附着在小微基站上, 当 UE高速移动时, 控制信道也随 UE的高速移动, 在不停的更换附着的 小基站, 导致业务不连续。 而采用本实施例的技术方案, 控制信道就始终 附着在宏基站上, 由于宏基站的覆盖范围远大于微基站, 即使 UE高速移 动, UE不需要随时改变其控制信道的附着点, 从而能够有效低保证 UE 的业务的连续性, 提高 UE的业务处理性能。
以上所描述的装置实施例仅仅是示意性的, 其中作为分离部件说明的 单元可以是或者也可以不是物理上分开的, 作为单元显示的部件可以是或 者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到至少两 个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现 本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况 下, 即可以理解并实施。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非 对其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的 普通技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进 行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或 者替换, 并不使相应技术方案的本质脱离本发明各实施例技术方案的范 围。

Claims

权 利 要 求 书
1、 一种数据传输方法, 其特征在于, 包括:
当用户设备需要进行数据传输时, 宏基站向所述用户设备发送物理层 数据信道的控制信息;
所述宏基站与所述用户设备接入的小基站进行所述用户设备的数据 的传输, 所述用户设备的数据为所述用户设备根据所述物理层数据信道的 控制信息传输的数据; 所述小基站能够获取到所述宏基站向所述用户设备 发送的所述物理层数据信道的控制信息。
2、 根据权利要求 1所述的方法, 其特征在于, 当用户设备需要进行 数据传输时, 宏基站向所述用户设备发送物理层数据信道的控制信息之 前, 所述方法还包括:
所述宏基站根据所述用户设备反馈的信道测量信息生成所述物理层 数据信道的控制信息。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述宏基站与所 述用户设备接入的小基站进行所述用户设备的数据的传输, 包括:
所述宏基站向所述小基站发送所述用户设备的下行数据, 以供所述小 基站在截取并解析所述物理层数据信道的控制信息之后, 根据所述物理层 数据信道的控制信息向所述用户设备发送所述用户设备的下行数据, 以使 得所述用户设备能够根据所述物理层数据信道的控制信息接收所述用户 设备的下行数据。
4、 根据权利要求 1或 2所述的方法, 其特征在于, 所述宏基站与所 述用户设备接入的小基站进行所述用户设备的数据的传输, 包括:
所述宏基站接收所述小基站发送的所述用户设备的上行数据, 所述用 户设备的上行数据为所述用户设备根据所述物理层数据信道的控制信息 向所述小基站发送的。
5、 根据权利要求 1 -4任一所述的方法, 其特征在于, 所述物理层数据 信道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
6、 根据权利要求 1 -4任一所述的方法, 其特征在于, 所述宏基站和所 述小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方式通 信。
7、 一种数据传输方法, 其特征在于, 包括:
当用户设备需要进行数据传输时, 所述用户设备接入的小基站获取宏 基站向所述用户设备发送的物理层数据信道的控制信息;
所述小基站根据所述物理层数据信道的控制信息与所述用户设备进 行所述用户设备的数据的传输。
8、 根据权利要求 7所述的方法, 其特征在于, 所述物理层数据信道 的控制信息为所述宏基站根据所述用户设备反馈的信道测量信息获取的。
9、 根据权利要求 7或 8所述的方法, 其特征在于, 所述小基站根据 所述物理层数据信道的控制信息与所述用户设备进行所述用户设备的数 据的传输, 包括:
所述小基站根据所述物理层数据信道的控制信息, 向所述用户设备发 送所述用户设备的下行数据, 以使得所述用户设备能够根据所述物理层数 据信道的控制信息接收所述用户设备的下行数据。
10、 根据权利要求 9所述的方法, 其特征在于, 所述小基站根据所述 物理层数据信道的控制信息向所述用户设备发送所述用户设备的下行数 据之前, 所述方法还包括:
所述小基站接收所述宏基站发送的所述用户设备的下行数据。
1 1、 根据权利要求 7或 8所述的方法, 其特征在于, 所述小基站根据 所述物理层数据信道的控制信息与所述用户设备进行所述用户设备的数 据的传输, 包括:
所述小基站接收所述用户设备根据所述物理层数据信道的控制信息 发送的所述用户设备的上行数据。
12、 根据权利要求 1 1所述的方法, 其特征在于, 所述小基站接收所 述用户设备根据所述物理层数据信道的控制信息发送的所述用户设备的 上行数据之后, 所述方法还包括:
所述小基站向所述宏基站发送所述用户设备的上行数据。
13、根据权利要求 7- 12任一所述的方法, 其特征在于, 所述物理层数 据信道的控制信息包括如下至少一种: 所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
14、根据权利要求 7- 12任一所述的方法, 其特征在于, 所述宏基站和 所述小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方式 通信。
15、 一种数据传输方法, 其特征在于, 包括:
当用户设备需要进行数据传输时, 所述用户设备接收宏基站发送的物 理层数据信道的控制信息;
所述用户设备根据所述物理层数据信道的控制信息与所述用户设备 接入的小基站进行所述用户设备的数据的传输; 所述小基站能够获取到所 述宏基站向所述用户设备发送的所述物理层数据信道的控制信息。
16、 根据权利要求 15所述的方法, 其特征在于, 当用户设备需要进 行数据传输时, 所述用户设备接收宏基站发送的物理层数据信道的控制信 息之前, 所述方法还包括:
所述用户设备向所述宏基站反馈的信道测量信息, 以供所述宏基站根 据所述信道测量信息获取所述物理层数据信道的控制信息。
17、 根据权利要求 15或 16所述的方法, 其特征在于, 所述用户设备 根据所述物理层数据信道的控制信息与所述用户设备接入的小基站进行 所述用户设备的数据的传输, 包括:
所述用户设备根据所述物理层数据信道的控制信息, 接收所述小基站 根据所述物理层数据信道的控制信息发送的所述用户设备的下行数据。
18、 根据权利要求 15或 16所述的方法, 其特征在于, 所述用户设备 根据所述物理层数据信道的控制信息与所述用户设备接入的小基站进行 所述用户设备的数据的传输, 包括:
所述用户设备根据所述物理层数据信道的控制信息, 向所述小基站发 送所述用户设备的上行数据, 以供所述小基站向所述宏基站发送所述用户 设备的上行数据。
19、 根据权利要求 15- 18任一所述的方法, 其特征在于, 所述物理层 数据信道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
20、 根据权利要求 15- 18任一所述的方法, 其特征在于, 所述宏基站 和所述小基站之间采用同频组网、 同制式异频组网或者异制式异频组网方 式通信。
21、 一种数据传输方法, 其特征在于, 包括:
当用户设备需要进行数据传输时, 宏基站向所述用户设备发送物理层 数据信道的控制信息;
所述用户设备接入的小基站获取所述宏基站向所述用户设备发送的 物理层数据信道的控制信息;
所述宏基站与所述小基站进行所述用户设备的数据的传输, 所述小基 站根据所述物理层数据信道的控制信息与所述用户设备进行所述用户设 备的数据的传输, 所述用户设备的数据为所述用户设备根据所述物理层数 据信道的控制信息传输的数据。
22、 一种宏基站, 其特征在于, 包括:
控制信息发送模块, 用于当用户设备需要进行数据传输时, 向所述用 户设备发送物理层数据信道的控制信息;
数据传输模块, 用于与所述用户设备接入的小基站进行所述用户设备 的数据的传输, 所述用户设备的数据为所述用户设备根据所述物理层数据 信道的控制信息传输的数据; 所述小基站能够获取到所述宏基站向所述用 户设备发送的所述物理层数据信道的控制信息。
23、 根据权利要求 22所述的宏基站, 其特征在于, 还包括: 获取模块, 用于在所述控制信息发送模块向所述用户设备发送物理层 数据信道的控制信息之前, 根据所述用户设备反馈的信道测量信息生成所 述物理层数据信道的控制信息。
24、 根据权利要求 22或 23所述的宏基站, 其特征在于, 所述数据传 输模块, 具体用于向所述小基站发送所述用户设备的下行数据, 以供所述 小基站在截取并解析所述物理层数据信道的控制信息之后, 根据所述物理 层数据信道的控制信息向所述用户设备发送所述用户设备的下行数据, 以 使得所述用户设备能够根据所述物理层数据信道的控制信息接收所述用 户设备的下行数据。
25、 根据权利要求 22或 23所述的宏基站, 其特征在于, 所述数据传 输模块, 具体用于接收所述小基站发送的所述用户设备的上行数据, 所述 用户设备的上行数据为所述用户设备根据所述物理层数据信道的控制信 息向所述小基站发送的。
26、 根据权利要求 22-25任一所述的宏基站, 其特征在于, 所述物理 层数据信道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
27、 根据权利要求 22-25任一所述的宏基站, 其特征在于, 所述宏基 站和所述小基站之间采用同频组网、 同制式异频组网或者异制式异频组网 方式通信。
28、 一种小基站, 其特征在于, 包括:
获取模块, 用于当接入所述小基站的用户设备需要进行数据传输时, 获取宏基站向所述用户设备发送物理层数据信道的控制信息;
数据传输模块, 用于根据所述物理层数据信道的控制信息与所述用户 设备进行所述用户设备的数据的传输。
29、 根据权利要求 28所述的小基站, 其特征在于, 所述物理层数据 信道的控制信息为所述宏基站根据所述用户设备反馈的信道测量信息获 取的。
30、 根据权利要求 28或 29所述的小基站, 其特征在于, 所述数据传 输模块, 具体用于根据所述物理层数据信道的控制信息向所述用户设备发 送所述用户设备的下行数据, 以使得所述用户设备能够根据所述物理层数 据信道的控制信息接收所述用户设备的下行数据。
31、 根据权利要求 30所述的小基站, 其特征在于, 所述数据传输模 块, 还用于在根据所述物理层数据信道的控制信息向所述用户设备发送所 述用户设备的下行数据之前, 接收所述宏基站发送的所述用户设备的下行 数据。
32、 根据权利要求 28或 29所述的小基站, 其特征在于, 所述数据传 输模块, 具体用于接收所述用户设备根据所述物理层数据信道的控制信息 发送的所述用户设备的上行数据。
33、 根据权利要求 28所述的小基站, 其特征在于, 所述数据传输模 块, 还用于在接收所述用户设备根据所述物理层数据信道的控制信息发送 的所述用户设备的上行数据之后, 向所述宏基站发送所述用户设备的上行 数据。
34、 根据权利要求 28-33任一所述的小基站, 其特征在于, 所述物理 层数据信道的控制信息包括如下至少一种:
所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
35、 根据权利要求 28-33任一所述的小基站, 其特征在于, 所述宏基 站和所述小基站之间采用同频组网、 同制式异频组网或者异制式异频组网 方式通信。
36、 一种用户设备, 其特征在于, 包括:
控制信息接收模块, 用于当需要进行数据传输时, 接收宏基站发送的 物理层数据信道的控制信息;
数据传输模块, 用于根据所述物理层数据信道的控制信息与接入的小 基站传输数据; 所述小基站能够获取到所述宏基站向所述用户设备发送的 所述物理层数据信道的控制信息。
37、 根据权利要求 36所述的用户设备, 其特征在于, 所述数据传输 模块, 还用于当需要进行数据传输时, 接收宏基站发送的物理层数据信道 的控制信息之前, 向所述宏基站反馈的信道测量信息, 以供所述宏基站根 据所述信道测量信息获取所述物理层数据信道的控制信息。
38、 根据权利要求 36或 37所述的用户设备, 其特征在于, 所述数据 传输模块, 具体用于根据所述物理层数据信道的控制信息, 接收所述小基 站根据所述物理层数据信道的控制信息发送的所述用户设备的下行数据。
39、 根据权利要求 36或 37所述的用户设备, 其特征在于, 所述数据 传输模块, 具体用于根据所述物理层数据信道的控制信息, 向所述小基站 发送所述用户设备的上行数据, 以供所述小基站向所述宏基站发送所述用 户设备的上行数据。
40、 根据权利要求 36-39任一所述的用户设备, 其特征在于, 所述物 理层数据信道的控制信息包括如下至少一种: 所述用户设备传输所述用户设备的数据时所在的时频资源位置、 传输 所述用户设备的数据所采用的传输模式、 调制方式和码率。
41、 根据权利要求 36-39任一所述的用户设备, 其特征在于, 所述宏 基站和所述小基站之间采用同频组网、 同制式异频组网或者异制式异频组 网方式通信。
42、 一种网络侧系统, 其特征在于, 包括:
宏基站, 用于当用户设备需要进行数据传输时, 向所述用户设备发送 物理层数据信道的控制信息;
小基站, 用于获取所述宏基站向所述用户设备发送的物理层数据信道 的控制信息; 所述小基站为所述用户设备接入的小基站;
所述宏基站还用于与所述小基站进行所述用户设备的数据的传输, 所 述小基站, 还用于根据所述物理层数据信道的控制信息与所述用户设备进 行所述用户设备的数据的传输, 所述用户设备的数据为所述用户设备根据 所述物理层数据信道的控制信息传输的数据。
43、 一种数据传输系统, 其特征在于, 包括如上权利要求 22-27任一 所述的宏基站、 如上权利要求 28-35任一所述的小基站以及如上权利要求 36-41任一所述的用户设备。
PCT/CN2013/076461 2012-09-24 2013-05-30 数据传输方法及系统、宏基站、小基站与用户设备 WO2014044058A1 (zh)

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