WO2018040977A1 - Procédé de transmission de données et dispositif de réseau - Google Patents

Procédé de transmission de données et dispositif de réseau Download PDF

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Publication number
WO2018040977A1
WO2018040977A1 PCT/CN2017/098459 CN2017098459W WO2018040977A1 WO 2018040977 A1 WO2018040977 A1 WO 2018040977A1 CN 2017098459 W CN2017098459 W CN 2017098459W WO 2018040977 A1 WO2018040977 A1 WO 2018040977A1
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Prior art keywords
user equipment
cell
frequency domain
domain resource
network device
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PCT/CN2017/098459
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English (en)
Chinese (zh)
Inventor
陈艳
易雄书
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华为技术有限公司
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Publication of WO2018040977A1 publication Critical patent/WO2018040977A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present invention relates to the field of wireless communications technologies, and in particular, to a data transmission method and a network device.
  • Wireless communication systems include uplink and downlink.
  • a base station (BS) can send a signal to a user equipment (UE) through a downlink, and the user equipment can send a signal to the base station through an uplink.
  • BS base station
  • UE user equipment
  • duplex modes used in wireless communication systems include frequency division duplexing (FDD) and time division duplexing (TDD).
  • FDD frequency division duplexing
  • TDD time division duplexing
  • different carrier frequencies are used in the uplink and downlink.
  • the f0 downlink and the f1 uplink are used to separate the uplink signal and the downlink signal by the frequency protection interval.
  • full-duplex communication with different frequencies in time-division duplex mode, different communication times are used in the uplink and downlink, as shown in the right figure of Figure 1, under different time slot ratios, D means downlink, U means Upstream, the received signal and the transmitted signal are separated by a time guard interval, so that half-duplex communication at the same frequency can be realized.
  • the network device of the cell is in the uplink data receiving period, and the corresponding receiving channel can only be used to receive the user equipment.
  • the uplink data to be transmitted, in the transmission period of the downlink data, the corresponding transmission channel can only be used to send downlink data to the user equipment, which makes the spectrum resource interest rate of the cell not high.
  • the embodiments of the present invention provide a data transmission method and a network device, which are beneficial to improving spectrum resource utilization of an existing FDD standard communication system.
  • an embodiment of the present invention provides a data transmission method, which is applied to a network device, where the network device supports a frequency division duplex FDD system, and has full duplex communication capability on the first frequency domain resource, including:
  • the network device When the network device receives the uplink data sent by the first user equipment of the first cell, the network device sends downlink data to the second user equipment on the first frequency domain resource;
  • the second user equipment is a user equipment supporting a time division duplex TDD system, or a user equipment supporting a TDD system, an FDD system, and a carrier aggregation CA, or a user equipment supporting an FDD system and a carrier aggregation CA.
  • the network device can receive the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, and send the downlink to the second user equipment on the first frequency domain resource.
  • the data is implemented to enable the network device to simultaneously send and receive data on the first frequency domain resource.
  • the second user equipment is in support of the TDD system.
  • the network device when receiving the uplink data sent by the first user equipment of the first cell, on the first frequency domain resource, to the second user equipment on the first frequency domain resource.
  • Send downstream data including:
  • the network device sends downlink data to the second user equipment of the second cell on the first frequency domain resource in a downlink subframe that supports the uplink and downlink ratio of the second cell of the TDD system, where The downlink subframe of the uplink and downlink ratio of the second cell and the uplink data reception period of the first cell are the same period.
  • the communication capability of the network device on the first frequency domain resource is improved to support TDD standard communication, thereby forming a second cell, and thus the second user equipment can be reused based on the TDD standard communication technology.
  • the uplink data receiving channel of the cell is the first frequency domain resource, so that the network device can send the downlink data to the second user equipment on the first frequency domain resource in the downlink subframe of the uplink and downlink ratio of the second cell, and
  • the downlink subframe of the uplink and downlink ratio of the second cell is in the same period as the uplink data receiving period of the first cell, so that the network device simultaneously transmits and receives data on the first frequency domain resource, thereby improving the spectrum of the first cell. Resource utilization.
  • the network device supports a downlink subframe of an uplink and downlink ratio of a second cell of the TDD system, and performs a second subframe on the first frequency domain resource.
  • the method further includes:
  • the network device broadcasts a TDD standard synchronization signal of the second cell on the first frequency domain resource, where the TDD standard synchronization signal of the second cell is used to indicate that the second user equipment camps to the Two cells;
  • the network device Responding to the cell camping request, the network device camps the second user equipment to the second cell, and establishes a connection with the second user equipment;
  • the network device sends the uplink and downlink ratio of the second cell to the second user equipment on the first frequency domain resource.
  • the network device in the first frequency domain resource. And when the uplink data sent by the first user equipment of the first cell is received, the downlink data is sent to the second user equipment on the first frequency domain resource, including:
  • the network device sends downlink data to the second user equipment on the TDD standard secondary carrier of the second user equipment in a downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located, where the TDD is sent.
  • the standard secondary carrier includes the first frequency domain resource, and the downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located and the uplink data receiving period of the first cell are the same period.
  • the communication capability of the network device on the first frequency domain resource is improved to support the TDD system and the CA communication, so the TDD standard secondary carrier of the second user equipment can multiplex the uplink of the first cell.
  • the data receiving channel is the first frequency domain resource, so that the network device sends the downlink data to the second user equipment on the TDD standard secondary carrier in the downlink subframe of the uplink and downlink ratio, and the downlink data of the uplink and downlink ratio
  • the uplink data receiving period of the frame and the first cell is the same period of time, so that the simultaneous multiplexing of the first frequency domain resources is implemented, that is, the network device implements simultaneous data transmission and reception on the first frequency domain resource, thereby improving the first cell. Spectrum resource utilization.
  • the network device is in a downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located, and is used on the TDD standard secondary carrier of the second user equipment.
  • the method further includes:
  • the network device broadcasts an FDD standard synchronization signal on the first frequency domain resource, where the FDD standard synchronization signal is used to indicate that the second user equipment camps on the first cell;
  • the network device Responding to the cell camping request, the network device camps the second user equipment to the first cell, and establishes a connection with the second user equipment;
  • the network device receives capability information sent by the second user equipment, where the capability information includes capability information, including the capability of the second user equipment to support a TDD system, an FDD system, and a carrier aggregation CA;
  • the network device sends signaling to the second user equipment on the FDD standard carrier, and sends the uplink and downlink ratio, where the signaling is used to indicate that the second user equipment is in the first Data reception and data transmission are supported on frequency domain resources.
  • the network device receives the first frequency domain resource.
  • the uplink data sent by the first user equipment of the first cell is used, the downlink data is sent to the second user equipment on the first frequency domain resource, including:
  • the network device When the network device receives the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, the network device sends the uplink data to the second user on the downlink auxiliary carrier of the FDD system of the second user equipment.
  • the device sends downlink data, where the FDD standard downlink secondary carrier includes the first frequency domain resource.
  • the communication capability of the network device on the first frequency domain resource is improved to support the CA communication, and therefore, the FDD standard downlink secondary carrier of the second user equipment can multiplex the uplink data reception of the first cell.
  • the channel is the first frequency domain resource, so that the network device can send the downlink data to the second user equipment on the downlink auxiliary carrier of the FDD system in the uplink data receiving period of the first cell, thereby implementing the foregoing first frequency domain resource.
  • Simultaneous multiplexing that is, the network device implements simultaneous data transmission and reception on the first frequency domain resource, thereby improving the spectrum resource utilization rate of the first cell.
  • the method when the network device receives the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, the second user equipment Before the downlink data is sent to the second user equipment on the downlink secondary carrier of the FDD system, the method further includes:
  • the network device broadcasts an FDD standard synchronization signal on the first frequency domain resource, where the FDD standard synchronization signal is used to indicate that the second user equipment camps on the first cell;
  • the network device Responding to the cell camping request, the network device camps the second user equipment to the second cell, and establishes a connection with the second user equipment;
  • the capability information includes the capability of the second user equipment to support an FDD system, a carrier aggregation CA, and a duplex communication;
  • the network device sends signaling to the second user equipment on the downlink primary carrier of the FDD system of the second user equipment, where the signaling is used to indicate that the second user equipment is in the first frequency domain resource.
  • an embodiment of the present invention provides a data transmission method, which is applied to a network device, where the network device supports a frequency division duplex FDD system and has full duplex communication capability on a second frequency domain resource, including:
  • the network device sends downlink data to the first user equipment of the first cell on the second frequency domain resource in the downlink data transmission period of the first cell, where the first user equipment is a user supporting the FDD system. device;
  • the network device When the network device sends the downlink data to the first user equipment of the first cell, the network device receives the uplink data sent by the third user equipment on the second frequency domain resource;
  • the third user equipment is a user equipment supporting a time division duplex TDD system, or a user equipment supporting a TDD system, an FDD system, and a carrier aggregation CA.
  • the network device can send the downlink data to the first user equipment of the first cell on the second frequency domain resource, and receive the uplink sent by the third user equipment on the second frequency domain resource.
  • the data is implemented to enable the network device to simultaneously send and receive data on the second frequency domain resource.
  • the interest rate of the frequency domain resource is improved.
  • the network equipment is in the second frequency domain resource to the first cell.
  • the uplink data sent by the third user equipment is received on the second frequency domain resource, including:
  • the network device receives, in the uplink subframe of the uplink and downlink ratio of the third cell of the TDD system, the uplink data sent by the third user equipment of the third cell on the second frequency domain resource, where The uplink subframe of the uplink and downlink ratio of the third cell and the downlink data transmission period of the first cell are the same period.
  • the communication capability of the network device on the first frequency domain resource is improved to support the TDD standard communication, thereby forming a third cell, and thus the third user equipment can be reused based on the TDD standard communication technology.
  • the downlink data transmission channel of the cell is the second frequency domain resource, so that the network device can receive the uplink data sent by the third user equipment on the second frequency domain resource in the uplink subframe of the uplink and downlink ratio of the third cell,
  • the uplink subframe of the uplink and downlink ratio of the third cell and the downlink data transmission period of the first cell are in the same period, so that the network device simultaneously transmits and receives data on the second frequency domain resource, thereby improving the spectrum of the first cell. Resource utilization.
  • the network device receives an uplink subframe of an uplink and downlink ratio of a third cell supporting the TDD system, and receives a third cell on the second frequency domain resource.
  • the method further includes:
  • the network device broadcasts a TDD standard synchronization signal of the third cell on the second frequency domain resource, where the TDD standard synchronization signal of the third cell is used to indicate that the third user equipment camps to the Three cells
  • the third user equipment responding to the cell camping request, the third user equipment camps on the third cell, and establishes a connection with the third user equipment;
  • the network device sends the uplink and downlink ratio of the third cell to the third user equipment on the second frequency domain resource.
  • the network device is on a second frequency domain resource.
  • the third user equipment sends the third user equipment to send the downlink data.
  • Upstream data including:
  • the TDD standard secondary carrier includes the second frequency domain resource, and the downlink subframe of the uplink and downlink ratio of the third user equipment and the downlink data transmission period of the first cell are the same period.
  • the communication capability of the network device on the first frequency domain resource is improved to support the TDD system and the CA communication, so the TDD standard secondary carrier of the third user equipment can multiplex the downlink of the first cell.
  • the data transmission channel is the second frequency domain resource, so that the network device receives the uplink data sent by the third user equipment on the TDD standard secondary carrier in the uplink and downlink matching uplink subframe, and the uplink and downlink ratio uplink
  • the downlink data transmission period of the subframe and the first cell is the same period, so that the second frequency domain resource is simultaneously multiplexed, that is, the network device implements simultaneous data transmission and reception on the second frequency domain resource, thereby improving the first Spectrum resource utilization of the cell.
  • the network device receives the third subframe on the TDD standard secondary carrier of the third user equipment in an uplink subframe of the uplink and downlink ratio of the third user equipment.
  • the method further includes:
  • the network device broadcasts an FDD standard synchronization signal on the second frequency domain resource, where the FDD standard synchronization signal is used to indicate that the third user equipment camps on the first cell;
  • the third user equipment responding to the cell camping request, the third user equipment camps on the first cell, and establishes a connection with the third user equipment;
  • the network device receives capability information sent by the third user equipment, where the capability information includes capability information, including the capability of the second user equipment to support a TDD system, an FDD system, a carrier aggregation CA, and duplex communication;
  • the network device Transmitting, by the network device, the second signaling to the third user equipment on the FDD standard carrier, and sending the uplink and downlink ratio, the signaling is used to indicate that the third user equipment is in the Data reception and transmission are supported on the second frequency domain resource.
  • an embodiment of the present invention provides a data transmission method, which is applied to a network device, where the network device supports a frequency division duplex FDD system and has full duplex communication capability on a second frequency domain resource, including:
  • the network device sends downlink data to the first user equipment of the first cell on the second frequency domain resource in the downlink data transmission period of the first cell, where the first user equipment is a user equipment supporting the FDD system;
  • the network device When the network device sends the downlink data to the first user equipment of the first cell, the network device receives the uplink data sent by the second user equipment on the uplink auxiliary carrier of the FDD system;
  • the uplink user equipment of the FDD system includes the second frequency domain resource, and the second user equipment is a user equipment that supports the FDD system and the carrier aggregation CA.
  • the communication capability of the network device on the second frequency domain resource is improved to support the CA communication, so the FDD standard uplink secondary carrier of the second user equipment can multiplex the downlink data transmission of the first cell.
  • the channel is the second frequency domain resource, so that the network device can receive the uplink data sent by the second user equipment on the uplink auxiliary carrier of the FDD system in the downlink data transmission period of the first cell, thereby implementing the second frequency domain resource.
  • Simultaneous multiplexing that is, the network device realizes simultaneous transmission and reception of data on the second frequency domain resource, thereby improving the spectrum resource of the first cell.
  • Source utilization that is, the network device realizes simultaneous transmission and reception of data on the second frequency domain resource, thereby improving the spectrum resource of the first cell.
  • the method before the network device receives the uplink data sent by the second user equipment on the FDD standard uplink secondary carrier in the downlink data sending period of the first cell, the method also includes:
  • the network device broadcasts an FDD standard synchronization signal on the second frequency domain resource, where the FDD standard synchronization signal is used to indicate that the second user equipment camps on the first cell;
  • the network device Responding to the cell camping request, the network device camps the second user equipment to the second cell, and establishes a connection with the second user equipment;
  • the capability information includes the capability of the second user equipment to support an FDD system, a carrier aggregation CA, and a duplex communication;
  • the network device sends signaling to the second user equipment on the downlink primary carrier of the FDD system of the second user equipment, where the signaling is used to indicate that the second user equipment is in the first frequency domain resource.
  • an embodiment of the present invention provides a network device, where the network device supports a frequency division duplex FDD system, and has full duplex communication capability on a first frequency domain resource, where the network device includes a functional unit.
  • the functional unit is for performing some or all of the steps described in any of the methods of the first aspect of the embodiments of the invention.
  • an embodiment of the present invention provides a network device, where the network device supports a frequency division duplex FDD system, and has full duplex communication capability on a second frequency domain resource, where the network device includes a functional unit.
  • the functional unit is for performing some or all of the steps described in any of the methods of the second aspect of the embodiments of the present invention.
  • an embodiment of the present invention provides a network device, where the network device supports a frequency division duplex FDD system and has full duplex communication capability on a second frequency domain resource, where the network device includes a functional unit.
  • the functional unit is for performing some or all of the steps described in any of the methods of the third aspect of the embodiments of the present invention.
  • the embodiment of the present invention provides a network device that supports a frequency division duplex FDD system and has full duplex communication capability on the first frequency domain resource, including:
  • processor an interface circuit, a memory, and a bus, wherein the processor, the interface circuit, and the memory are connected by the bus and complete communication with each other;
  • the interface circuit is configured to communicate with a user equipment under control of the processor, the memory storing executable program code;
  • the processor is configured to invoke the executable program code to perform some or all of the steps as described in any of the first aspects of the embodiments of the present invention.
  • the embodiment of the present invention provides a network device that supports a frequency division duplex FDD system and has full duplex communication capability on a second frequency domain resource, including:
  • processor an interface circuit, a memory, and a bus, wherein the processor, the interface circuit, and the memory are connected by the bus and complete communication with each other;
  • the interface circuit is configured to communicate with a user equipment under control of the processor, where the memory is stored Execution program code;
  • the processor is configured to invoke the executable program code to perform some or all of the steps as described in any of the methods of the second aspect of the embodiments of the present invention.
  • a ninth aspect, the embodiment of the present invention provides a network device, which supports a frequency division duplex FDD system and has full duplex communication capability on a second frequency domain resource, including:
  • processor an interface circuit, a memory, and a bus, wherein the processor, the interface circuit, and the memory are connected by the bus and complete communication with each other;
  • the interface circuit is configured to communicate with a user equipment under control of the processor, the memory storing executable program code;
  • the processor is configured to invoke the executable program code to perform some or all of the steps as described in any of the third aspects of the embodiments of the present invention.
  • an embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores program code.
  • the program code includes instructions for performing some or all of the steps described in any of the first to third aspects of the embodiments of the present invention.
  • FIG. 1 is a schematic diagram of a full duplex of a TDD system and an FDD system in the prior art
  • FIG. 2 is a system architecture diagram of a communication system supporting an FDD system according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 3.1 is a system architecture diagram of an enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention
  • FIG. 3.2 is a system architecture diagram of another enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention.
  • FIG. 3.3 is a system architecture diagram of another enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another data transmission method according to an embodiment of the present invention.
  • FIG. 4.1 is a system architecture diagram of an enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention
  • FIG. 4.2 is a system architecture diagram of an enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart diagram of another data transmission method according to an embodiment of the present disclosure.
  • FIG. 5.1 is a system architecture diagram of an enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention
  • FIG. 6 is a functional block diagram of a network device according to an embodiment of the present invention.
  • FIG. 7 is a functional block diagram of another network device according to an embodiment of the present invention.
  • FIG. 8 is a functional block diagram of another network device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another network device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another network device according to an embodiment of the present invention.
  • FIG. 2 is a system architecture diagram of a communication system supporting a FDD (Frequency Division Multiplexing) system, including a core network device, a network device, and a user equipment.
  • the example communication system may be, for example, an existing LTE communication system, or may be a future communication system that utilizes 5G New Air Interfaces (NR) technology.
  • the core network device may include, for example, a Mobility Management Entity (MME) or a Serving GateWay (S-GW), where the MME is mainly responsible for the signaling processing part, that is, the control plane function.
  • MME Mobility Management Entity
  • S-GW Serving GateWay
  • the S-GW is mainly responsible for the user plane function of user data forwarding, that is, routing and forwarding of data packets under the control of the MME.
  • the network device may be, for example, an LTE base station, that is, an Evolved Node B (eNode B), or a base station in a future 5G network, and is mainly responsible for radio resource management and quality of service (QoS) management on the air interface side. At least one of the functions of data compression and encryption.
  • the eNode B is mainly responsible for forwarding control plane signaling to the MME and forwarding user plane service data to the S-GW.
  • the user equipment UE may include, for example, a handheld device having a wireless communication function, an in-vehicle device, a wearable device, a computing device, or other processing device connected to the wireless modem, and a mobile station (MS), a terminal device (Terminal Equipment) Etc., for convenience of description, in the present application, simply referred to as user equipment or UE.
  • MS mobile station
  • Terminal Equipment Terminal Equipment
  • FIG. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present invention, which is applied to a network device, where the network device supports a frequency division duplex FDD system and has a resource on a first frequency domain.
  • Full-duplex communication capability as shown in the figure, the data transmission method includes the following steps:
  • the network device receives uplink data sent by the first user equipment of the first cell on the first frequency domain resource in an uplink data receiving period of the first cell, where the first user equipment is User equipment supporting FDD standard;
  • the network device when receiving the uplink data sent by the first user equipment of the first cell, on the first frequency domain resource, sending downlink data to the second user equipment on the first frequency domain resource;
  • the second user equipment is a user equipment supporting a time division duplex TDD system, or a user equipment supporting a TDD system, an FDD system, and a carrier aggregation CA, or a user equipment supporting an FDD system and a carrier aggregation CA.
  • the user equipment supporting the time division duplex TDD system refers to the user equipment capable of communicating by using the TDD standard technology
  • the user equipment supporting the TDD standard, the FDD system, and the CA means that the FDD standard technology, the TDD standard technology, and the CA technology can be used.
  • the user equipment for communication, the user equipment supporting the FDD system and the CA refers to the user equipment capable of communicating using the FDD standard technology and the CA technology.
  • the network device can receive the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, and send the downlink to the second user equipment on the first frequency domain resource. Data, thereby enabling the network device to simultaneously send and receive data on the first frequency domain resource, compared to the first frequency domain resource in the existing communication system In the case of the receiving channel, it is advantageous to increase the interest rate of the frequency domain resource.
  • FIG. 3.1 is a system architecture diagram of an enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention, where the second user equipment is When the user equipment of the TDD system is supported, the network device, when receiving the uplink data sent by the first user equipment of the first cell, on the first frequency domain resource, on the first frequency domain resource
  • the specific implementation manner for the second user equipment to send downlink data may be:
  • the network device sends downlink data to the second user equipment of the second cell on the first frequency domain resource in a downlink subframe that supports the uplink and downlink ratio of the second cell of the TDD system, where The downlink subframe of the uplink and downlink ratio of the second cell and the uplink data reception period of the first cell are the same period.
  • the communication capability of the network device on the first frequency domain resource is improved to support TDD standard communication, thereby forming a second cell, and thus the second user equipment can be reused based on the TDD standard communication technology.
  • the uplink data receiving channel of the first cell is the first frequency domain resource, so that the network device can send downlink data to the second user equipment on the first frequency domain resource in the downlink subframe of the uplink and downlink ratio of the second cell.
  • the network device implements simultaneous data transmission and reception on the first frequency domain resource, thereby improving the first cell.
  • the network device may also perform the following operations:
  • the network device receives the uplink data sent by the second user equipment on the first part of the bandwidth of the first frequency domain resource in an uplink subframe that supports the uplink and downlink ratio of the second cell of the TDD system. Receiving uplink data sent by the first user equipment on a second part of the bandwidth of the first frequency domain resource, where the first part of the bandwidth and the second part of the bandwidth do not overlap.
  • the network device can receive uplink data of the first user equipment and the second user equipment simultaneously through different bandwidth resources.
  • the network device is in the downlink subframe of the uplink and downlink ratio of the second cell supporting the TDD system, and the foregoing is performed on the first frequency domain resource to the second cell.
  • the following operations are also performed:
  • the network device broadcasts a TDD standard synchronization signal of the second cell on the first frequency domain resource, where the TDD standard synchronization signal of the second cell is used to indicate that the second user equipment camps to the Two cells;
  • the network device Responding to the cell camping request, the network device camps the second user equipment to the second cell, and establishes a connection with the second user equipment;
  • the network device sends the uplink and downlink ratio of the second cell to the second user equipment on the first frequency domain resource.
  • the uplink and downlink configuration of the first TDD system may be optimized and adjusted by the network device according to the ratio of uplink and downlink traffic of the second user equipment.
  • FIG. 3.2 is a system architecture diagram of another enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention, where the second user equipment is In the case of the user equipment of the TDD system, the FDD system, and the carrier aggregation CA, when the network device receives the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, Sending to the second user equipment on the first frequency domain resource
  • the second user equipment is In the case of the user equipment of the TDD system, the FDD system, and the carrier aggregation CA, when the network device receives the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, Sending to the second user equipment on the first frequency domain resource
  • the specific implementation of sending downlink data is:
  • the network device sends downlink data to the second user equipment on the TDD standard secondary carrier of the second user equipment in a downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located, where the TDD is sent.
  • the standard secondary carrier includes the first frequency domain resource, and the downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located and the uplink data receiving period of the first cell are the same period.
  • the communication capability of the network device on the first frequency domain resource is improved to support the TDD system and the CA communication, so the TDD standard secondary carrier of the second user equipment can multiplex the first cell.
  • the uplink data receiving channel is the first frequency domain resource, so that the network device sends the downlink data to the second user equipment on the TDD standard secondary carrier in the downlink subframe of the uplink and downlink ratio, and the downlink of the uplink and downlink ratio is
  • the uplink data receiving period of the subframe and the first cell is the same period, so that the first frequency domain resource is simultaneously multiplexed, that is, the network device implements simultaneous data transmission and reception on the first frequency domain resource, thereby improving the first cell.
  • Spectrum resource utilization is the first frequency domain resource
  • the network device may also perform the following operations:
  • the network device can receive uplink data of the first user equipment and the second user equipment simultaneously through different bandwidth resources.
  • the network device is in the downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located, and is in the TDD standard secondary carrier of the second user equipment to the Before the user equipment sends the downlink data, the following operations are also performed:
  • the network device broadcasts an FDD standard synchronization signal on the first frequency domain resource, where the FDD standard synchronization signal is used to indicate that the second user equipment camps on the first cell;
  • the network device Responding to the cell camping request, the network device camps the second user equipment to the first cell, and establishes a connection with the second user equipment;
  • the network device receives capability information sent by the second user equipment, where the capability information includes capability information, including the capability of the second user equipment to support a TDD system, an FDD system, and a carrier aggregation CA;
  • the network device sends signaling to the second user equipment on the FDD standard carrier, and sends the uplink and downlink ratio, where the signaling is used to indicate that the second user equipment is in the first Data reception and data transmission are supported on frequency domain resources.
  • FIG. 3.3 is a system architecture diagram of another enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention, where the second user equipment is In the case of the user equipment of the FDD system and the carrier aggregation CA, when the network device receives the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, the first The specific implementation manner of sending downlink data to the second user equipment on the frequency domain resource may be:
  • the downlink data is sent to the second user equipment on the downlink secondary carrier of the FDD system of the second user equipment, where the downlink secondary carrier of the FDD system includes the first frequency domain resource.
  • the communication capability of the network device on the first frequency domain resource is improved to support the CA communication, and therefore, the FDD standard downlink secondary carrier of the second user equipment can multiplex the uplink data of the first cell.
  • the receiving channel is the first frequency domain resource, so that the network device can send the downlink data to the second user equipment on the downlink auxiliary carrier of the FDD system in the uplink data receiving period of the first cell, thereby implementing the first frequency domain resource.
  • Simultaneous multiplexing that is, the network device implements simultaneous data transmission and reception on the first frequency domain resource, thereby improving the spectrum resource utilization rate of the first cell.
  • the network device when the network device receives the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, the FDD system in the second user equipment Before the downlink data is sent to the second user equipment on the downlink secondary carrier, the following operations are also performed:
  • the network device broadcasts an FDD standard synchronization signal on the first frequency domain resource, where the FDD standard synchronization signal is used to indicate that the second user equipment camps on the first cell;
  • the network device Responding to the cell camping request, the network device camps the second user equipment to the second cell, and establishes a connection with the second user equipment;
  • the capability information includes the capability of the second user equipment to support an FDD system, a carrier aggregation CA, and a duplex communication;
  • the network device sends signaling to the second user equipment on the downlink primary carrier of the FDD system of the second user equipment, where the signaling is used to indicate that the second user equipment is in the first frequency domain resource.
  • the second user equipment is a user equipment supporting the FDD system and the CA
  • the FDD standard downlink secondary carrier (for receiving downlink data) of the second user equipment can be reused.
  • the uplink data receiving channel of the first cell is the first frequency domain resource
  • the FDD standard uplink secondary carrier of the second user equipment (for transmitting uplink data) can multiplex the downlink data sending channel of the first cell, that is, the second frequency domain.
  • the signaling sent by the network equipment to the second user equipment on the downlink main carrier of the FDD system can indicate that the second user equipment is in the Data reception is supported on the first frequency domain resource, and data transmission is supported on the second frequency domain resource.
  • FIG. 4 is a schematic flowchart of another data transmission method according to an embodiment of the present invention, which is applied to a network device, where the network device supports a frequency division duplex FDD system, and The full-duplex communication capability is available on the second frequency domain resource.
  • the data transmission method includes the following steps:
  • the network device sends downlink data to the first user equipment of the first cell in the downlink data transmission period of the first cell, where the first user equipment supports the FDD system.
  • User equipment
  • the network device when sending the downlink data to the first user equipment of the first cell, on the second frequency domain resource, receiving the uplink data sent by the third user equipment on the second frequency domain resource;
  • the third user equipment is a user equipment supporting a time division duplex TDD system, or is configured to support TDD.
  • User equipment of the FDD system and carrier aggregation CA is a user equipment supporting a time division duplex TDD system, or is configured to support TDD.
  • the user equipment supporting the time division duplex TDD system refers to the user equipment capable of communicating by using the TDD standard technology
  • the user equipment supporting the TDD standard, the FDD system, and the CA means that the FDD standard technology, the TDD standard technology, and the CA technology can be used.
  • User equipment for communication refers to the user equipment capable of communicating by using the TDD standard technology
  • the user equipment supporting the TDD standard, the FDD system, and the CA means that the FDD standard technology, the TDD standard technology, and the CA technology can be used.
  • the network device can send the downlink data to the first user equipment of the first cell on the second frequency domain resource, and receive the uplink sent by the third user equipment on the second frequency domain resource.
  • the data is implemented to enable the network device to simultaneously send and receive data on the second frequency domain resource.
  • the interest rate of the frequency domain resource is improved.
  • FIG. 4.1 is a system architecture diagram of an enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention, where the third user is When the device is a user equipment that supports the TDD system, the network device receives the downlink data on the second frequency domain resource when transmitting the downlink data to the first user equipment of the first cell on the second frequency domain resource.
  • the specific implementation manner of the uplink data sent by the three user equipments may be:
  • the network device receives, in the uplink subframe of the uplink and downlink ratio of the third cell of the TDD system, the uplink data sent by the third user equipment of the third cell on the second frequency domain resource, where The uplink subframe of the uplink and downlink ratio of the third cell and the downlink data transmission period of the first cell are the same period.
  • the communication capability of the network device on the first frequency domain resource is improved to support the TDD standard communication, thereby forming a third cell, and thus the third user equipment can be reused based on the TDD standard communication technology.
  • the downlink data transmission channel of the first cell is the second frequency domain resource, so that the network device can receive the uplink data sent by the third user equipment on the second frequency domain resource in the uplink subframe of the uplink and downlink ratio of the third cell.
  • the uplink subframe of the uplink and downlink ratio of the third cell and the downlink data transmission period of the first cell are the same period, so the network device implements simultaneous data transmission and reception on the second frequency domain resource, thereby improving the first cell.
  • Spectrum resource utilization is the second frequency domain resource utilization.
  • the network device may also perform the following operations:
  • the network device sends downlink data to the second user equipment on the first part of the bandwidth of the second frequency domain resource in a downlink subframe that supports the uplink and downlink ratio of the third cell of the TDD system, and
  • the second part of the second frequency domain resource transmits downlink data to the first user equipment; wherein the first part of the bandwidth and the second part of the bandwidth do not overlap.
  • the network device can separately send downlink data to the first user equipment and the second user equipment through different bandwidth resources.
  • the network device receives the uplink subframe of the uplink and downlink ratio of the third cell of the TDD system, and receives the third cell for the second frequency domain resource. Before the uplink data sent by the third user equipment, the following operations are also performed:
  • the network device broadcasts a TDD standard synchronization signal of the third cell on the second frequency domain resource, where the TDD standard synchronization signal of the third cell is used to indicate that the third user equipment camps to the Three cells
  • the third user equipment responding to the cell camping request, the third user equipment camps on the third cell, and establishes a connection with the third user equipment;
  • FIG. 4.2 is a system architecture diagram of an enhanced communication system including the communication system shown in FIG. 2 according to an embodiment of the present invention, where the third user is In the case that the device is a user equipment supporting the TDD system, the FDD system, and the carrier aggregation CA, when the network device sends downlink data to the first user equipment of the first cell on the second frequency domain resource,
  • the specific implementation manner of receiving the uplink data sent by the third user equipment on the second frequency domain resource may be:
  • the TDD standard secondary carrier includes the second frequency domain resource, and the downlink subframe of the uplink and downlink ratio of the third user equipment and the downlink data transmission period of the first cell are the same period.
  • the communication capability of the network device on the first frequency domain resource is improved to support the TDD system and the CA communication, so the TDD standard secondary carrier of the third user equipment can multiplex the first cell.
  • the downlink data transmission channel is the second frequency domain resource, so that the network device receives the uplink data sent by the third user equipment on the TDD standard secondary carrier in the uplink subframe of the uplink and downlink ratio, and the uplink and downlink ratio is
  • the downlink data transmission period of the uplink subframe and the first cell is the same period, so that the second frequency domain resource is simultaneously multiplexed, that is, the network device implements simultaneous data transmission and reception on the second frequency domain resource, thereby improving the Spectrum resource utilization of a cell.
  • the network device may also perform the following operations:
  • the network device sends downlink data to the third user equipment on a bandwidth of the first part of the TDD standard secondary carrier in a downlink subframe of the uplink and downlink ratio of the third user equipment, and in the second
  • the second part of the frequency domain resource transmits downlink data to the first user equipment, and the first part of the bandwidth does not overlap with the second part of the bandwidth.
  • the network device can separately send downlink data to the first user equipment and the third user equipment through different bandwidth resources.
  • the network device receives the uplink subframe of the uplink and downlink of the third user equipment, and sends the third user equipment to send on the TDD standard secondary carrier of the third user equipment.
  • the upstream data do the following:
  • the network device broadcasts an FDD standard synchronization signal on the second frequency domain resource, where the FDD standard synchronization signal is used to indicate that the third user equipment camps on the first cell;
  • the third user equipment responding to the cell camping request, the third user equipment camps on the first cell, and establishes a connection with the third user equipment;
  • the network device receives capability information sent by the third user equipment, where the capability information includes capability information, including the capability of the second user equipment to support a TDD system, an FDD system, a carrier aggregation CA, and duplex communication;
  • the network device Transmitting, by the network device, the second signaling to the third user equipment on the FDD standard carrier, and sending the uplink and downlink ratio, the signaling is used to indicate that the third user equipment is in the Data reception and transmission are supported on the second frequency domain resource.
  • FIG. 5 is a schematic flowchart of another data transmission method according to an embodiment of the present invention.
  • the network device is applied to the network device, and the network device supports the frequency division duplex FDD system, and has full-duplex communication capability on the second frequency domain resource.
  • FIG. 5.1 is another embodiment provided by the embodiment of the present invention, and includes the method shown in FIG.
  • the system architecture diagram of the enhanced communication system of the communication system, as shown in FIG. 5, the data transmission method includes the following steps:
  • the network device sends downlink data to the first user equipment of the first cell on the second frequency domain resource in the downlink data transmission period of the first cell, where the first user equipment is a user supporting the FDD system. device;
  • the network device when transmitting the downlink data to the first user equipment of the first cell, on the second frequency domain resource, receiving the uplink data sent by the second user equipment on the uplink auxiliary carrier of the FDD system;
  • the uplink user equipment of the FDD system includes the second frequency domain resource, and the second user equipment is a user equipment that supports the FDD system and the carrier aggregation CA.
  • the user equipment supporting the FDD system and the CA refers to a user equipment capable of communicating by using the FDD standard technology and the CA technology.
  • the communication capability of the network device on the second frequency domain resource is improved to support the CA communication, so the FDD standard uplink secondary carrier of the second user equipment can multiplex the downlink data of the first cell.
  • Transmitting the channel, that is, the second frequency domain resource so that the network device can receive the uplink data sent by the second user equipment on the uplink secondary carrier of the FDD system in the downlink data transmission period of the first cell, thereby implementing the second frequency domain.
  • Simultaneous multiplexing of resources that is, the network device implements simultaneous data transmission and reception on the second frequency domain resource, thereby improving the spectrum resource utilization rate of the first cell.
  • the network device performs the following operations before receiving the uplink data sent by the second user equipment on the FDD standard uplink secondary carrier in the downlink data sending period of the first cell:
  • the network device broadcasts an FDD standard synchronization signal on the second frequency domain resource, where the FDD standard synchronization signal is used to indicate that the second user equipment camps on the first cell;
  • the network device Responding to the cell camping request, the network device camps the second user equipment to the second cell, and establishes a connection with the second user equipment;
  • the capability information includes the capability of the second user equipment to support an FDD system, a carrier aggregation CA, and a duplex communication;
  • the network device sends signaling to the second user equipment on the downlink primary carrier of the FDD system of the second user equipment, where the signaling is used to indicate that the second user equipment is in the first frequency domain resource.
  • the second user equipment is a user equipment supporting the FDD system and the CA
  • the FDD standard downlink secondary carrier (for receiving downlink data) of the second user equipment can be reused.
  • the uplink data receiving channel of the first cell is the first frequency domain resource
  • the FDD standard uplink secondary carrier of the second user equipment (for transmitting uplink data) can multiplex the downlink data sending channel of the first cell, that is, the second frequency domain.
  • the signaling sent by the network equipment to the second user equipment on the downlink main carrier of the FDD system can indicate that the second user equipment is in the Data reception is supported on the first frequency domain resource, and data transmission is supported on the second frequency domain resource.
  • FIG. 6 is a functional block diagram of a network device according to an embodiment of the present invention.
  • the network device 600 supports a frequency division duplex FDD system and has full duplex communication capability on the first frequency domain resource, including a receiving unit 601 and a sending unit 602, where:
  • the receiving unit 601 is configured to receive uplink data sent by the first user equipment of the first cell on the first frequency domain resource in an uplink data receiving period of the first cell, where the first user equipment is User equipment supporting FDD standard;
  • the sending unit 602 is configured to send downlink data to the second user equipment on the first frequency domain resource when receiving the uplink data sent by the first user equipment of the first cell on the first frequency domain resource;
  • the second user equipment is a user equipment supporting a time division duplex TDD system, or a user equipment supporting a TDD system, an FDD system, and a carrier aggregation CA, or a user equipment supporting an FDD system and a carrier aggregation CA.
  • the sending unit 602 is configured to:
  • the network device further includes:
  • a first signal broadcast unit configured to send a downlink to the second user equipment of the second cell on the first frequency domain resource in a downlink subframe that supports the uplink and downlink ratio of the second cell of the TDD system Before the data, the TDD standard synchronization signal of the second cell is broadcasted on the first frequency domain resource, and the TDD standard synchronization signal of the second cell is used to indicate that the second user equipment camps to the second Community
  • a first request receiving unit configured to receive a cell camping request sent by the second user equipment
  • the first camping unit is further configured to: in response to the cell camping request, camp the second user equipment to the second cell, and establish a connection with the second user equipment;
  • a ratio sending unit configured to send the uplink and downlink ratio of the second cell to the second user equipment on the first frequency domain resource.
  • the sending unit 602 is configured to:
  • the carrier includes the first frequency domain resource, and the downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located and the uplink data reception period of the first cell are the same period.
  • the network device further includes:
  • a second signal broadcast unit configured to: in the downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located in the sending unit 602, on the TDD standard secondary carrier of the second user equipment Before the second user equipment sends the downlink data, the FDD standard synchronization signal is broadcasted on the first frequency domain resource, where the FDD standard synchronization signal is used to indicate that the second user equipment camps on the first cell;
  • a second request receiving unit configured to receive a cell camping request sent by the second user equipment on a FDD standard primary carrier, where the FDD standard primary carrier includes the first frequency domain resource;
  • a second camping unit configured to: in response to the cell camping request, camp the second user equipment to the first cell, and establish a connection with the second user equipment;
  • the receiving unit 601 is further configured to receive capability information sent by the second user equipment, where the capability information includes capability information, including the capability of the second user equipment to support a TDD system, an FDD system, and a carrier aggregation CA;
  • the sending unit 602 is further configured to send signaling to the second user equipment on the FDD standard primary carrier, and send the uplink and downlink ratio, where the signaling is used to indicate the second user equipment. Data reception and data transmission are supported on the first frequency domain resource.
  • the sending unit 602 is configured to:
  • the downlink data is sent to the second user equipment on the downlink auxiliary carrier of the FDD system of the second user equipment.
  • the FDD standard downlink secondary carrier includes the first frequency domain resource.
  • the network device further includes:
  • the third signal broadcasting unit 610 is configured to: when receiving the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, on the downlink auxiliary carrier of the FDD standard of the second user equipment Before the second user equipment sends the downlink data, the FDD standard synchronization signal is broadcasted on the first frequency domain resource, where the FDD standard synchronization signal is used to indicate that the second user equipment camps on the first cell;
  • a third request receiving unit configured to receive a cell camping request sent by the second user equipment on an FDD standard uplink primary carrier of the second user equipment, where the FDD standard uplink primary carrier of the second user equipment includes Describe the first frequency domain resource;
  • a third camping unit configured to: in response to the cell camping request, camp the second user equipment to the second cell, and establish a connection with the second user equipment;
  • the receiving unit 601 is further configured to receive capability information sent by the second user equipment, where the capability information includes the capability of the second user equipment to support an FDD system, a carrier aggregation CA, and a duplex communication;
  • the sending unit 602 is further configured to send signaling to the second user equipment on the downlink primary carrier of the FDD system of the second user equipment, where the signaling is used to indicate that the second user equipment is in the Supporting data reception on the first frequency domain resource, and supporting data transmission on the second frequency domain resource, where the FDD standard downlink primary carrier of the second user equipment includes the first frequency domain resource.
  • the network device is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above.
  • a person skilled in the art may know that the composition of the network device may specifically be the network device shown in FIG.
  • the function of the sending unit 601 may be implemented by the network device shown in FIG. 9.
  • the processor 901 may call the executable program code in the memory 903, and the uplink of the first cell is performed by the interface circuit 902. Receiving, in the data receiving period, the number of uplinks sent by the first user equipment of the first cell on the first frequency domain resource according to.
  • the network device can receive the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, and the second user equipment on the first frequency domain resource. Sending downlink data, so that the network device can simultaneously send and receive data on the first frequency domain resource, and the first frequency domain resource in the existing communication system is only used as a receiving channel, which is beneficial to increasing the interest rate of the frequency domain resource. .
  • FIG. 7 is a functional block diagram of another network device according to an embodiment of the present invention.
  • the network device 700 supports a frequency division duplex FDD system and has full duplex communication capability on the second frequency domain resource, and may include a sending unit 701 and a receiving unit 702, where:
  • the sending unit 701 is configured to send downlink data to the first user equipment of the first cell on the second frequency domain resource in a downlink data transmission period of the first cell, where the first user equipment supports the FDD system.
  • the receiving unit 702 is configured to receive uplink data sent by the third user equipment on the second frequency domain resource when the downlink data is sent to the first user equipment of the first cell on the second frequency domain resource;
  • the third user equipment is a user equipment supporting a time division duplex TDD system, or a user equipment supporting a TDD system, an FDD system, and a carrier aggregation CA.
  • the receiving unit 702 is configured to:
  • the network device further includes:
  • a first signal broadcast unit configured to receive, by the third user equipment of the third cell, an uplink subframe of an uplink and downlink ratio of the third cell supporting the TDD system, where Before the uplink data, the TDD standard synchronization signal of the third cell is broadcasted on the second frequency domain resource, where the TDD standard synchronization signal of the third cell is used to indicate that the third user equipment camps to the Three cells
  • a first request receiving unit configured to receive a cell camping request sent by the third user equipment
  • a first camping unit configured to: in response to the cell camping request, camp the third user equipment to the third cell, and establish a connection with the third user equipment;
  • a ratio sending unit configured to send the uplink and downlink ratio of the third cell to the third user equipment on the second frequency domain resource.
  • the receiving unit 702 is configured to:
  • the carrier includes the second frequency domain resource, and the uplink subframe of the uplink and downlink ratio of the third user equipment and the downlink data transmission period of the first cell are the same period.
  • the network device further includes:
  • a second signal broadcast unit configured to: in the uplink subframe of the uplink and downlink ratio of the third user equipment in the receiving unit 702, before receiving the uplink data sent by the third user equipment on the TDD standard secondary carrier, Second frequency domain
  • the FDD standard synchronization signal is broadcasted on the source, where the FDD standard synchronization signal is used to indicate that the third user equipment camps on the first cell;
  • a second request receiving unit configured to receive a cell camping request sent by the third user equipment on a FDD standard primary carrier of the third user equipment, where the FDD standard primary carrier of the third user equipment includes the Two-frequency domain resources;
  • a second camping unit configured to: in response to the cell camping request, camp the third user equipment to the first cell, and establish a connection with the third user equipment;
  • the receiving unit 702 is further configured to receive capability information sent by the third user equipment, where the capability information includes the capability information, where the second user equipment supports a TDD system, an FDD system, a carrier aggregation CA, and a duplex communication. ability;
  • the sending unit 701 is further configured to send the second signaling to the third user equipment on the primary carrier of the FDD system, and send the uplink and downlink ratio, where the signaling is used to indicate the third
  • the user equipment supports data reception and transmission on the second frequency domain resource.
  • the network device is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above.
  • a person skilled in the art may know that the composition of the network device may specifically be the network device shown in FIG.
  • the function of the sending unit 701 may be implemented by the network device shown in FIG. 9.
  • the processor 901 may call the executable program code in the memory 903, and the interface circuit 902 is in the downlink of the first cell.
  • the downlink data is sent to the first user equipment of the first cell on the second frequency domain resource.
  • the network device can send the downlink data to the first user equipment of the first cell on the second frequency domain resource, and receive the third user equipment transmission on the second frequency domain resource.
  • Uplink data so that the network device can simultaneously send and receive data on the second frequency domain resource, and the second frequency domain resource in the existing communication system is only used as a transmission channel scheme, which is beneficial to increasing the interest rate of the frequency domain resource. .
  • FIG. 8 is a functional block diagram of another network device according to an embodiment of the present invention.
  • the network device 800 supports a frequency division duplex FDD system and has full duplex communication capability on the second frequency domain resource, and may include a sending unit 801 and a receiving unit 802, where:
  • the sending unit 801 is configured to send downlink data to the first user equipment of the first cell on the second frequency domain resource in the downlink data transmission period of the first cell, where the first user equipment is a user supporting the FDD system. device;
  • the receiving unit 802 is configured to: when the downlink data is sent to the first user equipment of the first cell, the FDD standard uplink secondary carrier includes the second frequency domain resource;
  • the second user equipment is a user equipment supporting the FDD system and the carrier aggregation CA.
  • the network device further includes:
  • a signal broadcast unit configured to: on the second frequency domain resource, before receiving, by the receiving unit, the uplink data sent by the second user equipment on the FDD standard uplink secondary carrier in the downlink data sending period of the first cell Broadcasting an FDD standard synchronization signal, where the FDD standard synchronization signal is used to indicate that the second user equipment camps to the first cell;
  • a request receiving unit configured to receive a cell resident that is sent by the second user equipment on an uplink main carrier of the FDD system
  • the FDD standard uplink primary carrier of the second user equipment includes the second frequency domain resource
  • a camping unit configured to: in response to the cell camping request, camp the second user equipment to the second cell, and establish a connection with the second user equipment;
  • the receiving unit 802 is further configured to receive capability information sent by the second user equipment, where the capability information includes the capability of the second user equipment to support an FDD system, a carrier aggregation CA, and a duplex communication;
  • the sending unit 801 is further configured to send signaling to the second user equipment on the downlink primary carrier of the FDD system of the second user equipment, where the signaling is used to indicate that the second user equipment is in the Supporting data reception on the first frequency domain resource, and supporting data transmission on the second frequency domain resource, where the FDD standard downlink primary carrier of the second user equipment includes the second frequency domain resource.
  • the network device is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above.
  • a person skilled in the art may know that the composition of the network device may specifically be the network device shown in FIG.
  • the function of the sending unit 801 may be implemented by the network device shown in FIG. 9.
  • the processor 901 may call the executable program code in the memory 903, and the interface circuit 902 is in the downlink of the first cell.
  • the downlink data is sent to the first user equipment of the first cell on the second frequency domain resource.
  • the communication capability of the network device on the second frequency domain resource is improved to support the CA communication, and therefore, the FDD standard uplink secondary carrier of the second user equipment can multiplex the downlink data transmission of the first cell.
  • the channel is the second frequency domain resource, so that the network device can receive the uplink data sent by the second user equipment on the uplink auxiliary carrier of the FDD system in the downlink data transmission period of the first cell, thereby implementing the second frequency domain resource.
  • Simultaneous multiplexing that is, the network device realizes simultaneous transmission and reception of data on the second frequency domain resource, thereby improving the spectrum resource utilization rate of the first cell.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device 900 provided by the embodiment of the present invention supports a frequency division duplex FDD system and has full duplex communication capability on the first frequency domain resource, including the processor 901 and the memory 902, the receiver 903, and the sending.
  • the 904 and the bus 905, the processor 901, the memory 902, the receiver 903, and the transmitter 904 are connected by a bus 904 and perform communication with each other.
  • the processor 901 is configured to invoke executable program code in the memory 902 to perform the following operations:
  • the receiver 903 And receiving, by the receiver 903, the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, by using the transmitter 904 on the first frequency domain resource.
  • the second user equipment sends downlink data;
  • the second user equipment is a user equipment supporting a time division duplex TDD system, or a user equipment supporting a TDD system, an FDD system, and a carrier aggregation CA, or a user equipment supporting an FDD system and a carrier aggregation CA.
  • the processor 901 receives, by using the receiver 903, the first cell in the first frequency domain resource.
  • the specific implementation manner of sending the downlink data to the second user equipment by using the transmitter 904 on the first frequency domain resource is:
  • the processor 901 in the downlink subframe that supports the uplink and downlink ratio of the second cell of the TDD system, passes by the transmitter 904 to the second cell on the first frequency domain resource. Before the second user equipment sends the downlink data, it is also used to:
  • TDD standard synchronization signal of the second cell Broadcasting a TDD standard synchronization signal of the second cell on the first frequency domain resource, where the TDD standard synchronization signal of the second cell is used to indicate that the second user equipment camps to the second cell;
  • the processor 901 receives the first cell on the first frequency domain resource.
  • the specific implementation manner of sending the downlink data to the second user equipment by using the transmitter 904 on the first frequency domain resource is:
  • the transmitter 904 And transmitting, by the transmitter 904, downlink data to the second user equipment on the TDD standard secondary carrier of the second user equipment by using the transmitter 904 in a downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located, where
  • the TDD standard secondary carrier includes the first frequency domain resource, and the downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located and the uplink data receiving period of the first cell are the same period.
  • the processor 901 is configured to send, by the transmitter 904, the downlink subframe of the uplink and downlink ratio of the cell where the second user equipment is located, by using the transmitter 904, on the TDD standard secondary carrier of the second user equipment. Before the second user equipment sends the downlink data, it is also used to:
  • capability information includes capability information, including the capability of the second user equipment to support a TDD system, an FDD system, and a carrier aggregation CA;
  • the processor 901 receives the first user of the first cell on the first frequency domain resource.
  • the specific implementation manner of sending the downlink data to the second user equipment by using the sender 904 on the first frequency domain resource is:
  • the downlink data is sent to the second user equipment on the downlink auxiliary carrier of the FDD system of the second user equipment.
  • the FDD standard downlink secondary carrier includes the first frequency domain resource.
  • the processor 901 when the processor 901 receives the uplink data sent by the first user equipment of the first cell on the first frequency domain resource, the FDD of the second user equipment by using the transmitter 904 Before transmitting the downlink data to the second user equipment on the secondary downlink secondary carrier, the method is further configured to:
  • the receiver 903 Receiving, by the receiver 903, the capability information sent by the second user equipment, where the capability information includes the capability of the second user equipment to support an FDD system, a carrier aggregation CA, and a duplex communication;
  • Data reception is supported on the domain resource, and data transmission is supported on the second frequency domain resource.
  • the FDD standard downlink primary carrier of the second user equipment includes the first frequency domain resource.
  • each step method flow may be implemented based on the structure of the network device shown in FIG.
  • each unit function may be implemented based on the structure of the network device.
  • the sending unit may be the transmitter 904, and the receiving unit may be the receiver 903.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device 1000 provided by the embodiment of the present invention supports a frequency division duplex FDD system and has full duplex communication capability on the second frequency domain resource, including the processor 1001 and the memory 1002, the receiver 1003, and the sending.
  • the processor 1004 and the bus 1005, the processor 1001, the memory 1002, the receiver 1003, and the transmitter 1004 are connected by a bus 1004 and complete communication with each other.
  • the processor 1001 is configured to invoke executable program code in the memory 1002 to perform the following operations:
  • the third user equipment is a user equipment supporting a time division duplex TDD system, or is configured to support TDD.
  • User equipment of the FDD system and carrier aggregation CA is a user equipment supporting a time division duplex TDD system, or is configured to support TDD.
  • the network device can send the downlink data to the first user equipment of the first cell on the second frequency domain resource, and receive the third user equipment transmission on the second frequency domain resource.
  • Uplink data so that the network device can simultaneously send and receive data on the second frequency domain resource, and the second frequency domain resource in the existing communication system is only used as a transmission channel scheme, which is beneficial to increasing the interest rate of the frequency domain resource. .
  • the processor 1001 is in the second frequency domain resource to the first of the first cell by using the transmitter 1004.
  • the specific implementation manner of receiving, by the receiver 1003, the uplink data sent by the third user equipment on the second frequency domain resource is:
  • the uplink subframe of the uplink and downlink ratio of the third cell and the downlink data transmission period of the first cell are the same period.
  • the processor 1001 receives an uplink subframe of an uplink and downlink ratio of a third cell of the TDD system, and receives, by the receiver 1003, a third cell on the second frequency domain resource. Before the uplink data sent by the third user equipment, it is also used to:
  • TDD standard synchronization signal of the third cell Broadcasting a TDD standard synchronization signal of the third cell on the second frequency domain resource, where the TDD standard synchronization signal of the third cell is used to indicate that the third user equipment camps to the third cell;
  • the processor 1001 is on the second frequency domain resource by using the transmitter 1004.
  • the specific implementation manner of the uplink data sent by the third user equipment on the second frequency domain resource by the receiver 1003 is:
  • the processor 1001 is configured to receive, by the receiver 1003, the third user equipment on the TDD standard secondary carrier of the third user equipment by using an uplink subframe of the uplink and downlink ratio of the third user equipment. Before sending the upstream data, it is also used to:
  • the device Responding to the first cell with the third user equipment in response to the cell camping request, and with the third The device establishes a connection;
  • capability information includes capability information, including the capability of the second user equipment to support a TDD system, an FDD system, a carrier aggregation CA, and a duplex communication;
  • each step method flow may be implemented based on the structure of the network device shown in FIG.
  • each unit function may be implemented based on the structure of the network device, for example, the sending unit may be the transmitter 1004, and the receiving unit may be the receiver 1003.
  • FIG. 11 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device 1100 provided by the embodiment of the present invention supports a frequency division duplex FDD system and has full duplex communication capability on a second frequency domain resource, including a processor 1101 and a memory 1102, a receiver 1103, and a transmission.
  • the processor 1104 and the bus 1105, the processor 1101, the memory 1102, the receiver 1103, and the transmitter 1104 are connected by a bus 1104 and complete communication with each other.
  • the processor 1101 is configured to invoke executable program code in the memory 1102 to perform the following operations:
  • the receiver 1103 receives the uplink data sent by the second user equipment on the FDD standard uplink secondary carrier. ;
  • the uplink user equipment of the FDD system includes the second frequency domain resource, and the second user equipment is a user equipment that supports the FDD system and the carrier aggregation CA.
  • the communication capability of the network device on the second frequency domain resource is improved to support the CA communication, and therefore, the FDD standard uplink secondary carrier of the second user equipment can multiplex the downlink data transmission of the first cell.
  • the channel is the second frequency domain resource, so that the network device can receive the uplink data sent by the second user equipment on the uplink auxiliary carrier of the FDD system in the downlink data transmission period of the first cell, thereby implementing the second frequency domain resource.
  • Simultaneous multiplexing that is, the network device realizes simultaneous transmission and reception of data on the second frequency domain resource, thereby improving the spectrum resource utilization rate of the first cell.
  • the processor 1101 is configured to: before the receiving, by the receiver 1103, the uplink data sent by the second user equipment on the uplink auxiliary carrier of the FDD system, the processor 1101 is further configured to:
  • Data reception is supported on the domain resource
  • data transmission is supported on the second frequency domain resource.
  • the FDD standard downlink primary carrier of the second user equipment includes the second frequency domain resource.
  • each step method flow may be implemented based on the structure of the network device shown in FIG.
  • each unit function may be implemented based on the structure of the network device.
  • the sending unit may be the transmitter 1104, and the receiving unit may be the receiver 1103.
  • any one of the processor 901, the processor 1001, and the processor 1101 may be a processor or a collective name of a plurality of processing elements.
  • the processor may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • DSPs digital singal processors
  • FPGAs Field Programmable Gate Arrays
  • any one of the memory 902, the memory 1002, and the memory 1102 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other types of dynamic storage devices that can store information and instructions, or can be an electrically erasable programmable read-only memory (EEPROM) or a compact disc read-only memory (Compact Disc Read-Only Memory, CD-ROM) or other disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or capable of carrying or storing instructions or data
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM Compact Disc Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • optical disc storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray
  • the receiver 903 is in communication with the processor 901, and can receive uplink data sent by the user equipment in multiple manners; the receiver 1003 and the processor 1001 can receive uplink data sent by the user equipment in multiple manners; the receiver 1103 and the processor The 1101 communication can receive uplink data sent by the user equipment in multiple manners.
  • the transmitter 904 is in communication with the processor 901, and can send downlink data to the user equipment in multiple manners; the transmitter 1004 and the processor 1001 can communicate downlink data to the user equipment in multiple manners; the transmitter 1104 communicates with the processor 1101.
  • the downlink data can be sent to the user equipment in a variety of ways.
  • bus 905, the bus 1005, and the bus 1105 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an extended industry standard architecture (Extended Industry Standard). Architecture, EISA) bus, etc.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figures 9 through 11, but it does not mean that there is only one bus or one type of bus.
  • the embodiment of the invention further provides a computer readable storage medium for storing computer software instructions for the user equipment, which comprises a program designed to execute the above method embodiment. Data transfer can be achieved by executing a stored program.
  • embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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

Abstract

L'invention concerne un procédé de transmission de données et un dispositif de réseau. Le procédé comprend les étapes suivantes : pendant une période de réception de données de liaison montante d'une première cellule, un dispositif de réseau reçoit, sur une première ressource de domaine fréquentiel, des données de liaison montante envoyées par un premier équipement utilisateur de la première cellule, et envoie, sur la première ressource de domaine fréquentiel, des données de liaison descendante à un second équipement utilisateur lors de la réception, sur la première ressource de domaine fréquentiel, des données de liaison montante envoyées par le premier équipement utilisateur de la première cellule, la première cellule prenant en charge un mode de duplexage par répartition en fréquence (FDD, "frequency division duplexing"), le premier équipement utilisateur étant un équipement utilisateur prenant en charge un mode FDD, et le second équipement utilisateur étant un équipement utilisateur prenant en charge un mode de duplexage par répartition dans le temps (TDD, "time division duplexing"), ou un équipement utilisateur prenant en charge le mode TDD, le mode FDD et l'agrégation de porteuses (CA, "carrier aggregation"), ou un équipement utilisateur prenant en charge le mode FDD et la CA. Les modes de réalisation de la présente invention sont avantageux pour améliorer le taux d'utilisation de ressources spectrales de systèmes de communication en mode FDD existants.
PCT/CN2017/098459 2016-08-27 2017-08-22 Procédé de transmission de données et dispositif de réseau WO2018040977A1 (fr)

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CN201610742957.2 2016-08-27

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CN110880962A (zh) * 2018-09-06 2020-03-13 华为技术有限公司 全双工数据传输方法和装置
CN117042155A (zh) * 2022-04-29 2023-11-10 大唐移动通信设备有限公司 资源确定方法、装置、终端及网络侧设备

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CN103906242A (zh) * 2012-12-26 2014-07-02 华为技术有限公司 一种无线通信方法、系统及基站和用户设备
CN105071906A (zh) * 2015-07-09 2015-11-18 清华大学 Wlan系统中实现同频同时全双工通信的方法及节点
WO2015180773A1 (fr) * 2014-05-28 2015-12-03 Nec Europe Ltd. Procédé de fonctionnement d'un réseau sans fil, réseau sans fil et station de base
CN105556885A (zh) * 2013-09-18 2016-05-04 瑞典爱立信有限公司 全双工通信方法和相关的无线基站

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CN103906242A (zh) * 2012-12-26 2014-07-02 华为技术有限公司 一种无线通信方法、系统及基站和用户设备
CN105556885A (zh) * 2013-09-18 2016-05-04 瑞典爱立信有限公司 全双工通信方法和相关的无线基站
WO2015180773A1 (fr) * 2014-05-28 2015-12-03 Nec Europe Ltd. Procédé de fonctionnement d'un réseau sans fil, réseau sans fil et station de base
CN105071906A (zh) * 2015-07-09 2015-11-18 清华大学 Wlan系统中实现同频同时全双工通信的方法及节点

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