WO2018171568A1 - 一种信息传输方法、处理方法及装置 - Google Patents
一种信息传输方法、处理方法及装置 Download PDFInfo
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- 230000010365 information processing Effects 0.000 title 1
- 238000004891 communication Methods 0.000 claims abstract description 319
- 238000005516 engineering process Methods 0.000 description 12
- 230000015654 memory Effects 0.000 description 9
- 230000008054 signal transmission Effects 0.000 description 4
- 230000011664 signaling Effects 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/0026—Interference mitigation or co-ordination of multi-user interference
-
- 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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0059—Out-of-cell user aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Definitions
- the present application relates to the field of wireless communication technologies, and in particular, to an information transmission method, a processing method, and an apparatus.
- duplexing can be divided into Time Division Duplex (TDD) and Frequency Division Duplex (FDD) according to the duplex mode.
- TDD Time Division Duplex
- FDD Frequency Division Duplex
- the communication system In the TDD mode, the communication system generally has only one working frequency band, and this working frequency band is only used for uplink communication or downlink communication in one time period, and the working frequency band is generally referred to as an unpaired working frequency band.
- FDD mode the communication system includes two pairs of working frequency bands, one of which is for uplink communication only, and the other is for downlink communication only.
- the number of terminals in different network devices may be different, and the uplink and downlink traffic of each terminal device may be different in the same period, which may cause different network devices to be in the same time period.
- different network devices need to use the same communication type in the working frequency band in the same time period; in the existing FDD mode, different network devices are also in any one of the paired working frequency bands in the same time period. Need to use the same communication type.
- the use of the same communication type here means that different network devices use uplink communication or downlink communication at the same time.
- This configuration method cannot meet the actual demand for uplink and downlink traffic of terminal devices within the coverage of each network device. Therefore, a more flexible duplexing technology is introduced in the prior art, that is, the communication type of each cell can be separately configured according to actual service requirements. For example, for a communication network in a TDD mode, uplink communication or downlink communication may be performed in each time period; for a communication network in an FDD mode, downlink communication may be performed using an uplink frequency band at a certain time period. For convenience of description, this duplexing technique is referred to as a flexible duplexing technique.
- a communication scenario often occurs in a communication network using flexible duplex technology. That is, when a network device performs uplink communication with a terminal device in its coverage area, one or more network devices that are geographically close to the network device are performing downlink communication with the terminal device in the coverage area. It is easily conceivable that a network device that is performing uplink communication will receive strong interference from a downlink signal transmitted by a network device that is geographically close to the network device and is performing downlink communication when receiving an uplink signal. If two network devices use the same working frequency band to perform uplink and downlink signal transmission respectively, the downlink signal transmission has stronger interference to the uplink signal reception.
- the TDD mode has a problem of co-channel interference because there is only one working frequency band.
- the FDD mode if a network device uses the uplink frequency band for downlink transmission, the network device performs normal use with the uplink frequency band.
- co-channel interference between network devices that transmit uplink.
- the prior art network devices that are interfered with each other use interference cancellation technology to delete interference caused by network devices that are geographically close to each other.
- interference cancellation technology to delete interference caused by network devices that are geographically close to each other.
- the interference coordination technology is that a plurality of network devices that are geographically close to each other inform each other of the communication type in a certain period of time, so that some network devices that intend to adopt uplink communication can learn more closely from each other.
- the network equipment intends to adopt downlink traffic, it changes its own communication type to avoid interference caused by neighboring cells. It can be seen that if interference coordination technology is to be used, network devices need to exchange their respective communication types.
- Wired technology can be used to send communication types between network devices.
- the wired interaction speed is relatively slow.
- the transmission and reception communication types may take 20ms, which may cause a delay in the transmission type of communication between network devices, which may result in the failure of network devices to be based on neighboring network devices in time.
- the type of communication for interference coordination may be used to send communication types between network devices.
- the present application provides an information transmission method and a processing method, so that network devices can know the communication type of neighboring network devices in time.
- the application provides an information transmission method, the method comprising:
- the first network device When the communication type is downlink communication or idle, the first network device sends a signal to the second network device by using an air interface in a first time period, where the signal is used to indicate the communication type.
- the first network device determines the communication type in the second time period by using the first network device, and when the communication type is downlink communication or idle, the first network device sends the air interface to the second network device through the air interface in the first time period.
- a signal indicating the type of the communication so that the first network device only needs to send information of two types of communication, saving resources of the first network device, and the second network device can quickly learn by listening to the signal.
- the communication type of the first network device in the second time period so that the second network device can perform interference coordination according to the communication type of the first network device in the second time period in time.
- the first network device determines the communication type of the first network device in the second time period, and specifically includes:
- the method may further include:
- the first network device sends indication information to the terminal device, where the indication information is used to indicate the communication type, where the communication type may be uplink communication, downlink communication, or idle; or only when the communication type is uplink communication. Indicates information and indicates that the communication type is uplink communication.
- the present application provides a processing method, the method comprising:
- the second network device monitors, by using the air interface, the signal sent by the first network device by using the air interface, where the signal is used to indicate that the communication type of the first network device in the second time period is downlink communication or idle;
- the second network device receives the signal, determining, according to the signal, that the communication type of the first network device in the second time period is downlink communication or idle.
- the second network device monitors, by using the second network device, a signal that is sent by the first network device and is used to indicate that the communication type of the first network device is downlink communication or idle in the second time period. Knowing the communication type of the first network device in the second time period, so that the second network device can perform interference coordination according to the communication type of the first network device in the second time period in time.
- the method can further include:
- the second network device does not receive the signal, it is determined that the first network device has a communication type of uplink communication in a second time period.
- the first network device only needs to send two types of communication, so that the communication resources of the first network device can be saved.
- the method may further comprise:
- the second network device monitors, in the first time period, an uplink signal sent by the terminal device that is controlled by the first network device;
- the second network device does not receive the signal, and receives the uplink signal, determining that the communication type of the first network device in the second time period is uplink communication;
- the second network device determines that the communication type of the first network device in the second time period is uplink communication.
- the second network device can further determine the communication type of the first network device more accurately by using the uplink signal.
- the second network device may also determine the communication type of the local network device in the second time period.
- the second network device determines that the communication type of the second network device in the second time period is uplink. Downlink communication or idle for communication and power reduction;
- the second network device After determining that the communication type of the first network device in the second time period is downlink communication, the second network device determines that the communication type of the second network device in the second time period is downlink communication or idle;
- the second network device After determining that the communication type of the first network device is idle in the second time period, the second network device determines that the communication type of the second network device in the second time period is uplink communication and downlink Communication or idle.
- the second network device may also consider the current traffic volume of the network device.
- the second network device can determine the communication type of the network device according to the communication type of the first network device, so that the communication of the network device to the first network device can be avoided as much as possible, and the first priority is ensured.
- the communication effect of a network device can be determined.
- the embodiment of the present application further provides an information transmission method, where the method includes:
- the terminal device When the communication type is uplink communication, the terminal device sends an uplink signal to the first network device in the first time period.
- the embodiment sends an uplink signal to the first network device, so that The second network device adjacent to the first network device can receive the uplink signal, and can accurately determine, according to the uplink signal, whether the communication type of the first network device in the second time period is uplink communication.
- the foregoing terminal device acquires information about a communication type of the first network device and the terminal device in the first time period and the second time period, and has multiple implementation manners.
- one implementation can be:
- the terminal device receives indication information from the first network device, where the indication information is used to indicate the communication type;
- the terminal device before the sending, by the terminal device, the uplink signal to the first network device in the first time period, the terminal device further comprises: determining, by the terminal device, whether the communication type is uplink communication according to the indication information.
- Another implementation can be:
- the terminal device receives the indication information from the first network device, where the indication information is used to indicate that the communication type is uplink communication;
- the terminal device sends an uplink signal to the first network device in the first time period, including:
- the terminal device After receiving the indication information, the terminal device sends an uplink signal to the first network device in the first time period.
- the signal sent by the first network device to the second network device in some embodiments of the present application includes a pilot signal, a control signal, or a data signal.
- the implicit transmission of the pilot signal, the control signal, or the data signal can prevent the first network device from reserving time resources for the transmission of the signal, so that the time resource of the first network device can be saved.
- Network devices involved in some embodiments of the present application may have different groupings.
- the first network device belongs to the first group of network devices
- the second network device belongs to the second group of network devices
- each of the first group of network devices sends its own communication type information only to The second group of network devices does not listen to information of communication types of other network devices.
- the second group of network devices need to listen to the communication type information of the first group of network devices, and do not send the self communication type information to the first group of network devices.
- the priority of the first group of network devices can be higher than the priority of the second group of network devices, and the first group of network devices only need to determine the communication type according to the service of the second group, and does not need to consider the second group of network devices.
- the type of communication, and the second group of network devices need to determine their own communication type according to the communication type of the first group of network devices, so that the interference of the first group of network devices is as small as possible.
- the communication type of the first network device and the second network device can be different for the same frequency band.
- the first time period may be before the second time period, or the second time period includes the first time period, and the first time period is at a time beginning of the second time period.
- the application provides a network device for performing the method in the first aspect or any possible implementation manner of the first aspect.
- the network device may comprise means for performing the method of the first aspect or any of the possible implementations of the first aspect.
- the network device can include a processing unit and a transmitting unit.
- the application provides a network device for performing the method in any of the possible implementations of the second aspect or the second aspect.
- the network device may comprise means for performing the method of any of the possible implementations of the second aspect or the second aspect.
- the network device can include a receiving unit and a processing unit.
- the application provides a terminal device for performing the method in any of the possible implementations of the third aspect or the third aspect.
- the terminal device may comprise means for performing the method of any of the third aspect or any of the possible implementations of the third aspect.
- the terminal device may include a receiving unit, a transmitting unit, and a processing unit.
- the application provides a network device comprising one or more processors, one or more memories, one or more transceivers, each transceiver including a transmitter and a receiver.
- the transmitter or receiver is coupled to one or more antennas and transmits and receives signals through the antenna.
- the memory is used to store computer program instructions, or code.
- the processor is operative to execute instructions stored in the memory, and when the instructions are executed, the processor performs the method of the first aspect or any of the possible implementations of the first aspect.
- the present application provides a network device including one or more processors, one or more memories, and one or more transceivers, each of which may include a transmitter and a receiver.
- the transmitter or receiver is coupled to one or more antennas and transmits and receives signals through the antenna.
- the memory is used to store computer program instructions, or code.
- the processor is operative to execute instructions stored in the memory, and when the instructions are executed, the processor performs the method of the second aspect or any of the possible implementations of the second aspect.
- the present application provides a terminal device including one or more processors, one or more memories, and one or more transceivers, each of which may include a transmitter and a receiver.
- the transmitter or receiver is coupled to one or more antennas and transmits and receives signals through the antenna.
- the memory is used to store computer program instructions, or code.
- the processor is operative to execute instructions stored in the memory, and when the instructions are executed, the processor performs the method of any of the third aspect or any of the possible implementations of the third aspect.
- the present application provides a wireless communication system including the foregoing first network device and second network device.
- the present application provides a computer readable storage medium having instructions stored therein that, when run on a computer, cause the computer to perform any of the first aspect or the first aspect described above The method in the implementation.
- the present application provides a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to perform any of the above second or second aspects The method in the implementation.
- the present application provides a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to perform any of the above-described third or third aspects The method in the implementation.
- Figure 1 is a flow chart of an embodiment of the present application
- FIG. 2 is a schematic structural diagram of a first network device according to an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of a second network device according to an embodiment of the present application.
- FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
- the type of communication is sent by the wired device between the network devices, because the delay is long, which may cause the network devices to perform interference coordination according to the communication type of the adjacent network device in time. Therefore, it is conceivable to transmit the communication type wirelessly.
- network devices can send communication types through air interfaces.
- a possible implementation manner is that each network device determines that the communication type is uplink communication or downlink communication, and then sends the communication type to other network devices through an air interface, and correspondingly, the other network device determines the communication type according to the received signal. For uplink communication or downlink communication.
- other implementation manners are provided by the embodiments of the present invention. These specific implementations are described in detail below.
- the above implementation mainly considers two types of communication, uplink and downlink.
- the communication type of idle can also be increased.
- the network device may also transmit only for two of the three communication types, and the other network devices may confirm the third communication type by means of exclusion. .
- the following mainly describes the two types of communication for downlink communication and idle, and describes the details in conjunction with the drawings.
- the terminal device may be a user equipment (UE), or may be a handheld terminal, and may be a communication node on a home appliance, a medical device, an industrial device, an agricultural device, or an aeronautical device, or may be used for Device to device (D2D) communication communication node and the like, wherein the D2D communication may be point-to-point communication, point-to-multipoint group communication, public safety communication, and the like.
- UE user equipment
- D2D Device to device
- the network device involved in the embodiment of the present invention may be a macro base station, a micro base station, a controller, a relay node, a mobile management entity (MME), a communication node for D2D communication, or the like, or other similar Internet equipment.
- MME mobile management entity
- the first network device and the second network device are included in the wireless communication system.
- the first network device has a first terminal device
- the second network device has a second terminal device.
- the embodiment includes the following steps:
- Step 101 The first network device determines a communication type of the first network device in the second time period.
- the second time period may be a subframe, or a slot, or a mini-slot, or a symbol.
- the second time period may also be multiple subframes, multiple slots, multiple mini-slots or multiple symbols.
- the plurality of slots may be continuous in time or discontinuous.
- the communication type of the first network device in the second time period should be understood as multiple slots included by the first network device in the second time period. The type of communication within each slot. Moreover, the communication type of the first network device in the multiple slots may be the same or different.
- the communication type is the communication type of the first network device on a certain carrier using the unpaired working frequency band;
- the communication type is a communication type of the first network device on a certain carrier using one of the paired working frequency bands.
- the communication type can be uplink communication, downlink communication, or idle.
- Step 102 When the communication type is downlink communication or idle, the first network device sends a signal to the second network device by using an air interface in a first time period, where the signal is used to indicate that the first network device is in the second time. The type of communication within the segment.
- the first time period For the first time period, several subframes in one frame may be used as the low priority subframe, and the first symbol in each low priority subframe is used as the first time period.
- the first time period can precede the second time period. And these two time periods can be in the same subframe, slot or mini-slot.
- the signal can include an indication message.
- the indication information may be N bits of information, and N is a positive integer. For example, it is 1-bit information. When the indication information takes a value of 0, it indicates that the communication type is downlink communication. When the value is 1, it indicates that the communication type is idle.
- the signal may also include an identity of the first network device.
- the second network device can determine the communication type of each first network device that is geographically close to each other according to the identity identifier, so that the first network can be based on the first network that is closer to each other. In the case of the device, select the appropriate communication type to avoid interference with these first network devices. For example, if the second network device has three first network devices that are close to each other, and two of the first network devices are closer to the second network device, the second network device determines the network device. When the communication type is used, the communication types of the two first network devices closer to the second network device can be considered more, and therefore the communication type of each first network device needs to be determined according to the identity of the first network device.
- Step 103 The second network device listens to the signal sent by the first network device in a first time period.
- the second network device may also perform the second The terminal device sends the second indication information, which is used to indicate that the second terminal device does not need to perform signal transmission and reception in the first time period, thereby reducing the complexity of the second terminal device, and the second terminal device can be reduced. Signal transmission and reception, so you can save power.
- the low priority subframe For the first time period, several subframes in one frame may be used as the low priority subframe, and the first symbol in each low priority subframe is used as the first time segment.
- the second network device needs to listen to the signal sent by the first network device in the first symbol, so the second terminal device does not need to send and receive signals.
- the second network device may send the second indication information to the second terminal device by using semi-static signaling, such as RRC signaling.
- the second network device may also adopt dynamic signaling, and send the second indication information according to the following line control signaling.
- Step 104 The second network device determines, according to the signal, a communication type of the first network device in a second time period.
- the second network device may be determined that the communication type of the first network device in the second time period is uplink communication. If the signal is received, it can be determined whether the communication type is downlink communication or idle according to specific information in the signal.
- the second network device needs to determine the communication type of the network device according to the communication type of the first network device in the second time period, in addition to considering the service of the network device in the second time period.
- the uplink communication is also downlink communication to avoid interference to the uplink communication of the first network device, and to avoid interference of the network device by the first network device. It should be noted that, since the second network device is in an idle state, the communication of the first network device is not affected. Therefore, if the second network device has no service in the second time period, the first network device may be disregarded.
- the communication type is directly set to the idle state.
- the second network device determines that the communication type of the second network device may be uplink communication or power reduction. Downlink communication, or idle, to avoid interference with the uplink communication of the first network device.
- the second network device may determine its own communication type according to the service in the second time period for the second time period. It can be uplink communication, downlink communication or idle, without worrying about interference between two network devices.
- the second network device may determine its own communication according to the service in the second time period.
- the type may be downlink communication or idle to avoid interference caused by the downlink communication of the second network device by the first network device.
- the second network device can select according to the service situation of the second time period.
- the communication type of the first network device and the second network device can be different for the same frequency band in the same time period. That is, the two network devices can support flexible duplex technology.
- the second network device determines that the first network device is an uplink communication. Further, before the step 104, some steps may be added to help the second network device determine the communication type of the first network device.
- step 104 the following steps may be included before step 104.
- Step A The first terminal device acquires information about a communication type of the first network device and the first terminal device in the first time period and the second time period.
- the first terminal device determines that the communication type has multiple implementations. For example, it is determined by a preset method.
- the type of communication may also be determined by the indication information sent by the first network device.
- the method for the first network device to send the indication information may further include:
- Step A' the first network device determines a communication type with the first terminal device in the first time period and the second time period, and sends indication information to the first terminal device to indicate the communication type.
- the communication type may be uplink communication or downlink communication, and may of course be idle. Since the first terminal device only needs to send an uplink signal when the communication type is uplink communication, the first network device may also send the indication information to the first terminal device only when the communication type is uplink communication.
- the indication information may be information including 1 bit.
- the indication information takes a value of 0, the communication type is indicated as downlink communication.
- the value is 1, the communication type is indicated as idle.
- the step A includes: the first terminal device acquires the indication information.
- Step B When the communication type of the first network device and the terminal device are both uplink communication in the first time period and the second time period, the first terminal device sends the first network device to the first network device in the first time period. Send an upstream signal.
- the first terminal device may be specifically configured according to the The indication information determines a communication type of the first network device and the terminal device in the first time period and the second time period, and determines whether it is an uplink communication according to the communication type.
- the first terminal device receives the indication information, indicating that the communication type of the first network device is uplink communication, and therefore the first terminal After receiving the indication information, the device may send an uplink signal to the first network device in the first time period.
- the uplink device sends the uplink signal in the first time period, so the first time period may be before the second time period or in the second time period.
- a part, for example, is located at the beginning of the second time period.
- Step C The second network device monitors the uplink signal sent by the first terminal device in the first time period.
- step 104 if the second network device does not receive the signal and receives the uplink signal, it may be determined that the communication type of the first network device in the second time period is uplink communication.
- the solution that the foregoing terminal device sends an uplink signal to the first network device to help the second network device determine the communication type of the first network device may actually exist separately. That is, only the terminal device needs to send an uplink signal, and the first network device does not send a signal for indicating the traffic type to the second network device.
- the second network device determines that the first network device is uplink communication, and if not, determines that the first network device is downlink communication or idle.
- the network devices transmit communication types through air interfaces, and need to reserve a period of time for transmitting and receiving communication types. During the period of the reservation, network devices cannot communicate with terminal devices in their respective coverage areas, resulting in a waste of time resources. Since the network devices in the wireless communication system are usually relatively large, if each network device sends the communication type of the network device to other network devices, a large time resource overhead is required.
- the first network device carries information of the communication type in other signals or information in an implicit manner.
- the first network device does not need to reserve time for transmitting the communication type, but sends the information of the communication type to the second network device by using other signals, so that the first network device can be saved.
- Time resources The other signal is, for example, a pilot signal, and specifically, the first network device uses the time-frequency pattern or sequence of the pilot signal to carry information of the communication type.
- the first pilot pattern is represented as downlink communication and the second pilot pattern is indicated as idle.
- the first sequence is represented as downlink communication and the second sequence is idle.
- the other signal may also control the signal or the data signal.
- the first network device uses the scrambling code of the control signal or the data signal to carry the information of the communication type.
- the first scrambling code is represented as downlink communication and the second scrambling code is indicated as idle.
- the first group of network devices has a higher priority, and can determine the communication type according to its own situation, without considering other network devices, that is, the network devices. It only needs to send its own communication type to the second group of network devices without monitoring the communication type of the second group of network devices, and does not need to send the communication type to the network devices in the group.
- the second group of network devices have lower priority, need to monitor the communication types of other network devices, and determine the communication type of the network devices according to the communication types of other network devices.
- the second group of network devices can also send their own communication types to the network devices of the group.
- the first group of network devices only need to send the communication type, and does not need to reserve time to receive the communication type sent by other network devices, thereby saving time resources.
- the second group of network devices may not transmit their own communication type, but only listen to the communication type of the first group of network devices, and thus may also save time resources.
- the former implementation scheme may be further adopted, that is, the information carrying the communication type is carried in other signals or information through an implicit manner.
- these network devices may be network devices having the same function, and are mainly grouped according to factors such as geographical location in the system. For example, if a network device that is geographically distant is set as the first network device, the grouping method can make the path loss between the first network devices larger, thereby greatly reducing the flexible dual use between the network devices. Interference caused by industrial technology.
- a configuration manner such as polling may also be adopted. For example, the network devices in the system are divided into two groups or more groups, and one or a certain group is selected in one time period. As the first network device, the network device changes the network device in the other group as the first network device in the next time period.
- the first network device in this embodiment of the present application may include a processing unit 201 and a sending unit 202.
- the sending unit 202 is specifically configured to perform various information transmissions performed by the first network device in the foregoing method embodiment.
- the processing unit 201 may be specifically configured to perform, in addition to information transmission and reception, the first network device in the foregoing method embodiment. Other processing.
- the processing unit 201 can be configured to determine a communication type of the network device in a second time period; the sending unit 202 can be configured to pass the air interface in the first time period when the communication type is downlink communication or idle. Sending a signal to the second network device, the signal being used to indicate the type of communication.
- the second network device in this embodiment of the present application may include a receiving unit 301 and a processing unit 302.
- the receiving unit 301 is specifically configured to perform various information receiving performed by the second network device in the foregoing method embodiment.
- the processing unit 302 is specifically configured to perform the second network device except the information receiving and receiving in the foregoing method embodiment. Other processing.
- the receiving unit 301 can be configured to monitor, by using an air interface, a signal sent by the first network device, where the signal is used to indicate that the communication type of the first network device is downlink communication or idle in the second time period.
- the processing unit 302 can be configured to determine, according to the signal, that the communication type of the first network device in the second time period is downlink communication or idle, according to the signal.
- the terminal device in this embodiment of the present application may include a processing unit 401 and a receiving unit 402, and may further include a sending unit 403.
- the processing unit 401 is specifically configured to perform the processing of the terminal device in addition to the information transmission and reception in the foregoing method embodiment;
- the receiving unit 402 is specifically configured to perform various information reception performed by the terminal device in the foregoing method embodiment;
- the sending unit 403 is specifically configured to perform various information transmissions performed by the terminal device in the foregoing method embodiment.
- the receiving unit 402 may be configured to acquire information about a communication type of the first network device and the terminal device in the first time period and the second time period; when the communication type is uplink communication, the processing unit 402 The sending unit 403 sends an uplink signal to the first network device in the first time period.
- the processing unit, the transmitting unit and the receiving unit may be a processor, a transmitter and a receiver.
- the storage medium referred to herein is, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like.
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Abstract
本申请提供了一种信息传输方法，该方法包括：第一网络设备确定所述第一网络设备在第二时间段内的通信类型；在所述通信类型为下行通信或空闲时，所述第一网络设备在第一时间段内通过空口向第二网络设备发送信号，所述信号用于指示所述通信类型。
Description
本申请要求于2017年03月24日提交中国专利局、申请号为201710182194.5、申请名称为“一种信息传输方法、处理方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及无线通信技术领域，具体涉及一种信息传输方法、处理方法及装置。
在无线通信系统中，按照双工模式的不同，可以将双工分为时分双工(Time Division Duplex，TDD)和频分双工(Frequency Division Duplex，FDD)。在TDD模式下，通信系统一般仅有一个工作频段，且这个工作频段在一个时段内仅用于上行通信或下行通信，通常将该工作频段称为非成对工作频段。在FDD模式下，通信系统包括两个成对的工作频段，其中一个工作频段仅用于上行通信，而另一个工作频段仅用于下行通信。
由于通信网络中终端设备的分布不均匀，使得不同网络设备覆盖范围内的终端数量可能不同，并且在同一时段每个终端设备的上下行业务量也可能大相径庭，这会导致不同网络设备在同一时段的上下行业务量之间出现较大的差异。而在现有的TDD模式下，不同网络设备同一时段内在工作频段上需要使用相同的通信类型；在现有的FDD模式下，不同网络设备同一时段内在成对工作频段中的任意一个频段上也需要使用相同的通信类型。这里的使用相同通信类型指不同网络设备同时使用上行通信或下行通信。这种配置方法无法满足每个网络设备覆盖范围内的终端设备对上下行业务量的实际需求。因此，现有技术中引入了更为灵活的双工技术，即，可以根据实际业务需求，对每个小区的通信类型单独进行配置。例如，对于TDD模式的通信网络，每个时段都可以进行上行通信或下行通信；对于FDD模式的通信网络，可以在某个时段，使用上行频段进行下行通信。为方便描述，将这种双工技术称为灵活双工技术。
考虑到网络设备的发射功率远大于终端设备的发射功率，因此，在采用灵活双工技术的通信网络中，经常会出现这样一种通信场景。即，一个网络设备与其覆盖范围内的终端设备在进行上行通信时，与该网络设备地理位置上相距较近的一个或多个网络设备与其覆盖范围内的终端设备正在进行下行通信。容易想到的是，正在进行上行通信的网络设备在接收上行信号时，将会受到与该网络设备地理位置上相距较近的、且正在进行下行通信的网络设备发送的下行信号的强烈干扰。如果两个网络设备使用相同工作频段分别进行上下行信号传输，则下行信号发送对上行信号接收的干扰更为强烈。比如，TDD模式因为只有一个工作频段，所以必然会有该同频干扰的问题；FDD模式下，如果某个网络设备使用了上行频段进行下行传输，则该网络设备与其他正常使用该上行频段进行上行传输的网络设备之间，也会有该同频干扰的问题。
现有技术为了解决这个技术问题，通常都是受到干扰的网络设备采用干扰删除技术，将地理位置上相距较近的网络设备对其造成的干扰进行删除。但是，在实际的网络中，一个小区附近通常都会有多个邻小区，此时，干扰删除技术的性能急剧下降，甚至无法保证网络的正常工作。
为此，现有技术又进一步提出了干扰协调技术。干扰协调技术即是地理位置上相距较近的多个网络设备之间互相告知各自在某些时段内的通信类型，从而可以使一些拟采用上行通信的网络设备在获知与其相距较近的多个网络设备拟采用下行通行的情况下，改变自身的通信类型以避免邻小区对其造成的干扰。可见，若要使用干扰协调技术，网络设备之间需要交互各自的通信类型。
网络设备之间可以采用有线技术发送通信类型。有线方式的交互速度比较慢，比如，发送和接收通信类型可能需要20ms的时间，这会导致网络设备之间传输通信类型的延迟较大，从而可能导致网络设备之间无法及时根据相邻网络设备的通信类型进行干扰协调。
发明内容
有鉴于此，本申请提供了一种信息传输方法及处理方法，以使网络设备间能够及时获知相邻网络设备的通信类型。
第一方面，本申请提供了一种信息传输方法，该方法包括：
第一网络设备确定所述第一网络设备在第二时间段内的通信类型；
在所述通信类型为下行通信或空闲时，所述第一网络设备在第一时间段内通过空口向第二网络设备发送信号，所述信号用于指示所述通信类型。
本申请实施例通过第一网络设备确定在第二时间段的通信类型，并在该通信类型为下行通信或空闲时，该第一网络设备在第一时间段内通过空口向第二网络设备发送用于指示该通信类型的信号，使得该第一网络设备只需要发送两种通信类型的信息，节约了该第一网络设备的资源，并且该第二网络设备可以通过监听该信号快速得知该第一网络设备在该第二时间段的通信类型，从而使得该第二网络设备能够及时根据该第一网络设备在该第二时间段的通信类型进行干扰协调。
上述所述第一网络设备确定在第二时间段内该第一网络设备的通信类型，具体可以包括：
所述第一网络设备根据所述第一网络设备在所述第二时间段内的业务确定所述第一网络设备在所述第二时间段内的通信类型。
所述方法还可以进一步包括：
所述第一网络设备向终端设备发送指示信息，所述指示信息用于指示所述通信类型，这里的通信类型可以是上行通信、下行通信或空闲；或者只在通信类型为上行通信时发送该指示信息，且指示所述通信类型为上行通信。
第二方面，本申请提供了一种处理方法，该方法包括：
第二网络设备在第一时间段内通过空口监听第一网络设备发送的信号，所述信号用于指示所述第一网络设备在第二时间段内的通信类型为下行通信或空闲；
如果所述第二网络设备接收到所述信号，则根据所述信号确定所述第一网络设备 在所述第二时间段内的通信类型为下行通信或空闲。
本申请实施例通过该第二网络设备在第一时间段监听第一网络设备发送的、且用于指示该第一网络设备在第二时间段内的通信类型为下行通信或空闲的信号，快速得知该第一网络设备在该第二时间段的通信类型，从而使得该第二网络设备能够及时根据该第一网络设备在该第二时间段的通信类型进行干扰协调。
所述方法可以进一步包括：
如果所述第二网络设备没有接收到所述信号，则确定所述第一网络设备在第二时间段内通信类型为上行通信。
通过这种方式，该第一网络设备只需要发送两种通信类型，从而可以节约该第一网络设备的通信资源。
或者，所述方法可以进一步包括：
所述第二网络设备在所述第一时间段内监听所述第一网络设备所管辖的终端设备发送的上行信号；
如果所述第二网络设备没有接收到所述信号，且接收到所述上行信号，则确定所述第一网络设备在第二时间段内的通信类型为上行通信；
或者，如果所述第二网络设备接收到所述上行信号，则确定所述第一网络设备在第二时间段内的通信类型为上行通信。
通过这种方式除了可以节约该第一网络设备的通信资源，该第二网络设备还可以通过该上行信号更准确地确定该第一网络设备的通信类型。
该第二网络设备在确定该第一网络设备在第二时间段内的通信类型后，还可以确定本网络设备在该第二时间段内的通信类型。
比如，在确定所述第一网络设备在第二时间段内的通信类型为上行通信后，所述第二网络设备确定所述第二网络设备在所述第二时间段内的通信类型为上行通信、降功率的下行通信或空闲；
在确定所述第一网络设备在第二时间段内的通信类型为下行通信后，所述第二网络设备确定所述第二网络设备在所述第二时间段内的通信类型为下行通信或空闲；
在确定所述第一网络设备在第二时间段内的通信类型为空闲后，所述第二网络设备确定所述第二网络设备在所述第二时间段内的通信类型为上行通信、下行通信或空闲。
且该第二网络设备在确定通信类型时，还可以考虑本网络设备当前的业务量。
通过上述方式，该第二网络设备可以根据该第一网络设备的通信类型确定本网络设备的通信类型，从而可以尽量避免本网络设备的通信对该第一网络设备的干扰，优先保证了该第一网络设备的通信效果。
第三方面，本申请实施例还提供了一种信息传输方法，该方法包括：
终端设备获取在第一时间段和第二时间段内第一网络设备与所述终端设备的通信类型的信息；
在所述通信类型为上行通信时，所述终端设备在所述第一时间段内向所述第一网络设备发送上行信号。
本申请实施例通过该终端设备在第一时间段和第二时间段内第一网络设备与所述 终端设备的通信类型为上行通信时，向该第一网络设备发送上行信号，从而使得与该第一网络设备相邻的第二网络设备能够接收到该上行信号，并能够根据该上行信号准确确定该第一网络设备在该第二时间段的通信类型是否为上行通信。
上述所述终端设备获取在第一时间段和第二时间段内第一网络设备与所述终端设备的通信类型的信息，有多种实现方式。
比如，一种实现方式可以是：
所述终端设备从所述第一网络设备接收指示信息，所述指示信息用于指示所述通信类型；
相应地，在所述终端设备在所述第一时间段内向所述第一网络设备发送上行信号之前，进一步包括：所述终端设备根据所述指示信息确定所述通信类型是否为上行通信。
另一种实现方式可以是：
所述终端设备从所述第一网络设备接收指示信息，所述指示信息用于指示所述通信类型为上行通信；
在所述通信类型为上行通信时，所述终端设备在所述第一时间段内向所述第一网络设备发送上行信号，包括：
所述终端设备在收到所述指示信息后，在所述第一时间段内向所述第一网络设备发送上行信号。
可选地，本申请一些实施例中第一网络设备发送给第二网络设备的信号包括导频信号、控制信号或数据信号。通过导频信号、控制信号或数据信号进行隐式发送，可以避免该第一网络设备预留时间资源用于该信号的发送，因此可以节约该第一网络设备的时间资源。
本申请一些实施例涉及的网络设备可以有不同分组。比如，所述第一网络设备属于第一组网络设备，所述第二网络设备属于第二组网络设备，所述第一组网络设备中的每个网络设备将自身的通信类型信息只发送给所述第二组网络设备，且不监听其他网络设备的通信类型的信息。
所述第二组网络设备则需要监听所述第一组网络设备的通信类型信息，且不向所述第一组网络设备发送自身通信类型信息。
通过这种分组方式，可以使得第一组网络设备的优先级高于第二组网络设备的优先级，第一组网络设备只需要根据自身的业务确定通信类型，不需要考虑第二组网络设备的通信类型，而第二组网络设备则需要根据第一组网络设备的通信类型来确定自身的通信类型，从而使得第一组网络设备受到的干扰尽可能地少。
在同一时段内，对于同一个频段，所述第一网络设备与所述第二网络设备的通信类型能够不同。
该第一时间段可以在该第二时间段之前，或者该第二时间段包括该第一时间段，且该第一时间段在该第二时间段最开始的时间。
第四方面，本申请提供一种网络设备，用于执行第一方面或第一方面的任意可能的实现方式中的方法。具体地，该网络设备可以包括执行第一方面或第一方面的任意可能的实现方式中的方法的单元。比如，该网络设备可以包括处理单元和发送单元。
第五方面，本申请提供一种网络设备，用于执行第二方面或第二方面的任意可能的实现方式中的方法。具体地，该网络设备可以包括执行第二方面或第二方面的任意可能的实现方式中的方法的单元。比如，该网络设备可以包括接收单元和处理单元。
第六方面，本申请提供一种终端设备，用于执行第三方面或第三方面的任意可能的实现方式中的方法。具体地，该终端设备可以包括执行第三方面或第三方面的任意可能的实现方式中的方法的单元。比如，该终端设备可以包括接收单元、发送单元和处理单元。
第七方面，本申请提供一种网络设备，该网络设备包括一个或多个处理器，一个或多个存储器，一个或多个收发器，每个收发器可以包括发射机和接收机。发射机或接收机与一个或多个天线连接，并通过天线收发信号。存储器用于存储计算机程序指令，或者说是代码。处理器用于执行存储器中存储的指令，当指令被执行时，处理器执行第一方面或第一方面的任意可能的实现方式中的方法。
第八方面，本申请提供一种网络设备，该网络设备包括一个或多个处理器，一个或多个存储器，一个或多个收发器，每个收发器可以包括发射机和接收机。发射机或接收机与一个或多个天线连接，并通过天线收发信号。存储器用于存储计算机程序指令，或者说是代码。处理器用于执行存储器中存储的指令，当指令被执行时，处理器执行第二方面或第二方面的任意可能的实现方式中的方法。
第九方面，本申请提供一种终端设备，该终端设备包括一个或多个处理器，一个或多个存储器，一个或多个收发器，每个收发器可以包括发射机和接收机。发射机或接收机与一个或多个天线连接，并通过天线收发信号。存储器用于存储计算机程序指令，或者说是代码。处理器用于执行存储器中存储的指令，当指令被执行时，处理器执行第三方面或第三方面的任意可能的实现方式中的方法。
第十方面，本申请提供了一种无线通信系统，该无线通信系统包括前述的第一网络设备和第二网络设备。
第十一方面，本申请提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十二方面，本申请提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十三方面，本申请提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第三方面或第三方面的任意可能的实现方式中的方法。
图1为本申请实施例的流程图；
图2为本申请实施例第一网络设备的结构示意图；
图3为本申请实施例第二网络设备的结构示意图；
图4为本申请实施例终端设备的结构示意图。
对于现有技术中网络设备之间采用有线方式发送通信类型而言，由于时延较长，从而可能导致网络设备之间无法及时根据相邻网络设备的通信类型进行干扰协调。因此可以考虑采用无线的方式发送通信类型。比如，网络设备之间可以通过空口发送通信类型。
一种可能的实现方式是每个网络设备确定通信类型为上行通信或下行通信，然后将该通信类型通过空口发送给其他网络设备，相应地，其他网络设备则根据收到的信号确定该通信类型为上行通信还是下行通信。除此实现方式之外，本发明实施例还提供了其他实现方式。下面对这些具体实现方式进行详细描述。
上述实现方式主要考虑了上行和下行两种通信类型，为使网络设备能够尽可能地充分使用资源，还可以增加空闲这种通信类型。另外，为尽量减少网络设备发送通信类型所占用的资源，网络设备还可以只针对这三种通信类型中的两种进行发送，其他网络设备针对第三种通信类型则可以通过排除的方式进行确认。下面主要以针对下行通信和空闲这两种通信类型为例，结合附图对进行详细描述。
在具体介绍本发明各实施例之前，首先结合附图描述本发明实施例可能涉及的无线通信系统。虽然在前述背景技术部分以使用灵活双工技术的无线通信系统为例进行了介绍，但本领域技术人员应当知晓，本发明实施例不仅仅适用于这样的无线通信系统，也可以适用于其他具体类似干扰问题的无线通信系统等。
本发明实施例涉及的终端设备可以是用户设备(UE)，也可以是手持终端，可以是家用电器、医疗设备、工业器件、农业器件、或航空设备等上的通信节点，也可以是用于设备到设备(device to device，D2D)通讯的通信节点等类似设备，其中，D2D通信可以是点到点通信，点到多点的组通信，公用安全通信等。
本发明实施例涉及的网络设备可以是宏基站、微基站、控制器、中继节点、移动管理实体(mobile management entity，MME)、或用于D2D通讯的通信节点等，也可以是其他类似的网络设备。
下面以无线通信系统中包括第一网络设备和第二网络设备为例，第一网络设备所管辖的小区中有第一终端设备，第二网络设备所管辖的小区中有第二终端设备。
基于该无线通信系统，如图1所示，该实施例包括以下步骤：
步骤101、第一网络设备确定第二时间段内该第一网络设备的通信类型。
该第二时间段可以是一个子帧(subframe)，或者一个时隙(slot)，或者一个微时隙(mini-slot)，或者一个符号。该第二时间段也可以是多个subframe、多个slot、多个mini-slot或者多个符号。
当该第二时间段为多个slot时，该多个slot可以在时间上连续，也可以不连续。进一步的，当该第二时间段包含多个slot时，该第一网络设备在该第二时间段内的通信类型应理解为该第一网络设备在该第二时间段所包括的多个slot中每个slot内的通信类型。并且，该第一网络设备在该多个slot的通信类型可以相同，也可以不同。
对于TDD模式，也即使用非成对工作频段的无线通信系统而言，该通信类型为该第一网络设备在使用该非成对工作频段的某个载波上的通信类型；对于FDD模式，也 即使用成对工作频段的无线通信系统而言，该通信类型为该第一网络设备在使用该成对工作频段中的一个工作频段的某个载波上的通信类型。该通信类型可以是上行通信、下行通信或空闲。
步骤102、在该通信类型为下行通信或空闲时，该第一网络设备在第一时间段内通过空口向该第二网络设备发送信号，该信号用于指示该第一网络设备在第二时间段内的通信类型。
对于该第一时间段，可以将一帧中的若干子帧作为低优先级子帧，在每个低优先级子帧中的第一个符号作为该第一时间段。
该第一时间段可以在该第二时间段之前。并且这两个时间段可以在同一个subframe、slot或mini-slot。
该信号可以包括一个指示信息。该指示信息可以是N比特的信息，N为正整数。比如，是1比特的信息，当该指示信息取值为0时，指示该通信类型为下行通信，取值为1时，指示该通信类型为空闲。
该信号中还可以包括该第一网络设备的身份标识。在有多个第一网络设备的情况下，该第二网络设备能够根据该身份标识确定地理位置上相距较近的每个第一网络设备的通信类型，从而可以根据相距较近的第一网络设备的情况选择合适的通信类型，以尽量避免对这些第一网络设备造成干扰。比如，如果该第二网络设备有3个相距较近的第一网络设备，其中有2个第一网络设备离该第二网络设备更近些，因此该第二网络设备在确定本网络设备的通信类型时，可以更多地考虑离该第二网络设备更近的这两个第一网络设备的通信类型，因此需要根据第一网络设备的身份标识确定每个第一网络设备的通信类型。
步骤103、第二网络设备在第一时间段内监听该第一网络设备发送的该信号。
由于该第二网络设备在第一时间段需要进行监听，无法与归属于该第二网络设备所管辖的小区的该第二终端设备进行信息交互，因此该第二网络设备还可以向该第二终端设备发送第二指示信息，用于指示该第二终端设备在该第一时间段内不用进行信号发送和接收，从而降低该第二终端设备的复杂度，且该第二终端设备因为可以减少信号发送和接收，所以还可以省电。
如前所述，对于该第一时间段，可以将一帧中的若干子帧作为低优先级子帧，在每个低优先级子帧中的第一个符号作为该第一时间段，该第二网络设备需要在该第一个符号监听该第一网络设备发送的信号，因此该第二终端设备不需要进行信号的发送和接收。
该第二网络设备可以采用半静态的信令，如RRC信令向该第二终端设备发送上述第二指示信息。该第二网络设备也可以采用动态的信令，如下行控制信令发送上述第二指示信息。
步骤104、该第二网络设备根据该信号确定该第一网络设备在第二时间段内的通信类型。
如果该第二网络设备没有收到该信号，则可以确定该第一网络设备在该第二时间段内的通信类型为上行通信。如果收到该信号，则可以根据该信号中的具体信息确定该通信类型是下行通信还是空闲。
之后该第二网络设备除了考虑本网络设备在该第二时间段内的业务之外，还需要根据该第一网络设备在该第二时间段内的通信类型来确定本网络设备的通信类型为上行通信还是下行通信，以避免对该第一网络设备的上行通信造成干扰，以及尽量避免本网络设备被该第一网络设备的干扰。需要说明的是，由于该第二网络设备处于空闲状态不会影响第一网络设备的通信，因此，如果该第二网络设备在第二时间段内没有业务，则可以不考虑第一网络设备的通信类型，直接设置为空闲状态。
比如，如果该第一网络设备在该第二时间段内的通信类型为上行通信，则针对该第二时间段，该第二网络设备确定自身的通信类型可以为上行通信，或者是降功率的下行通信，或者是空闲，以避免对该第一网络设备上行通信的干扰。
如果该第一网络设备在该第二时间段内的通信类型为空闲，则针对该第二时间段，该第二网络设备可以根据自己在该第二时间段内的业务，确定自身的通信类型可以为上行通信、下行通信或空闲，不用担心两个网络设备之间的干扰。
如果该第一网络设备在该第二时间段内的通信类型为下行通信，则针对该第二时间段，该第二网络设备可以根据自己在该第二时间段内的业务，确定自身的通信类型可以为下行通信或空闲，以尽量避免该第二网络设备被该第一网络设备的下行通信造成的干扰。
对于上述三种情况，具体选择哪个通信类型，该第二网络设备可以根据自己在该第二时间段内的业务情况进行选择。
对于上述第一网络设备和第二网络设备而言，在同一时段内，对于同一个频段，所述第一网络设备与所述第二网络设备的通信类型能够不同。也即这两个网络设备能够支持灵活双工技术。
上述步骤104中，第二网络设备在确定没有收到该信号后，确定该第一网络设备为上行通信。进一步地，在该步骤104之前，还可以增加一些步骤，以帮助第二网络设备确定该第一网络设备的通信类型。
具体地，步骤104之前可以包括以下步骤。
步骤A、该第一终端设备获取在第一时间段和第二时间段内该第一网络设备与该第一终端设备的通信类型的信息。
该第一终端设备确定该通信类型有多种实现方式。比如，通过预设的方式确定。还可以通过第一网络设备发送的指示信息确定该通信类型。相应地，对于该第一网络设备发送指示信息的方案来说，在步骤A之前，还可以进一步包括：
步骤A’、该第一网络设备确定在第一时间段和第二时间段内与该第一终端设备的通信类型，并向该第一终端设备发送指示信息用于指示该通信类型。
该通信类型可以是上行通信或下行通信，当然也可以是空闲。由于该第一终端设备只需要在该通信类型为上行通信时发送上行信号，因此该第一网络设备还可以只在该通信类型为上行通信时给该第一终端设备发送指示信息。
该指示信息可以是包括1比特的信息，当该指示信息取值为0时，指示该通信类型为下行通信，取值为1时，指示该通信类型为空闲。
该步骤A则包括：该第一终端设备获取该指示信息。
步骤B、在该第一时间段和第二时间段内该第一网络设备与该终端设备的通信类 型均为上行通信时，该第一终端设备在该第一时间段内向该第一网络设备发送上行信号。
如果该第一网络设备发送的指示信息是通信类型的信息，且该通信类型包括多种类型，比如上行通信、下行通信及空闲中的至少两种，则该第一终端设备具体可以是根据该指示信息确定在第一时间段和第二时间段内该第一网络设备与该终端设备的通信类型，并根据该通信类型确定是否为上行通信。
如果该第一网络设备只在通信类型为上行通信时才发送该指示信息，该第一终端设备收到该指示信息即可说明该第一网络设备的通信类型为上行通信，因此该第一终端设备可以在收到该指示信息后，在第一时间段内向该第一网络设备发送上行信号。
由于两个时间段均为上行通信时，该终端设备才会在第一时间段内发送上行信号，因此该第一时间段可以在该第二时间段之前，也可以是第二时间段内的一部分，比如，位于第二时间段的最开始位置。
步骤C、该第二网络设备在该第一时间段监听该第一终端设备发送的该上行信号。
相应地，对于上述步骤104，如果该第二网络设备没有收到该信号，且收到了该上行信号，则可以确定该第一网络设备在该第二时间段内的通信类型为上行通信。
上述终端设备向第一网络设备发送上行信号，以帮助第二网络设备确定第一网络设备的通信类型的方案，实际上也可以单独存在。也即只需要终端设备发送上行信号，该第一网络设备不再向第二网络设备发送用于指示通行类型的信号。相应地，第二网络设备收到该上行信号，则确定该第一网络设备为上行通信；如果没有收到，则确定该第一网络设备为下行通信或空闲。
上述各方案中，网络设备之间都是通过空口传输通信类型，需要预留一段时间用于发送和接收通信类型。在该预留的这段时间内，网络设备之间不能与各自覆盖范围内的终端设备通信，造成一定的时间资源浪费。由于无线通信系统中的网络设备通常比较多，如果每个网络设备都向其他网络设备发送本网络设备的通信类型，则需要较大的时间资源开销。
相应地，有两种实现方案可以尽量减少时间资源的开销。
一种方案是该第一网络设备通过隐式方式将通信类型的信息携带在其他信号或信息中。采用这种方案，该第一网络设备不需要专门预留时间用于发送该通信类型，而是将该通信类型的信息通过其他信号发送给第二网络设备，从而可以节约该第一网络设备的时间资源。该其他信号比如是导频信号，具体可以是该第一网络设备使用导频信号的时频图样或序列携带该通信类型的信息。比如，第一导频图样表示为下行通信，第二导频图样表示为空闲。或者第一序列表示为下行通信，第二序列为空闲。该其他信号还可以控制信号或数据信号，具体可以是该第一网络设备使用控制信号或数据信号的扰码携带该通信类型的信息。比如，第一扰码表示为下行通信，第二扰码表示为空闲。
另一种方案是将系统中的网络设备分组，比如分为两组，第一组网络设备优先级较高，可以根据自身的情况确定通信类型，不需要考虑其他网络设备，即该组网络设备只需要将自身的通信类型发给第二组网络设备，而不需要监听第二组网络设备的通信类型，也不需要给本组内的网络设备发送通信类型。第二组网络设备优先级较低， 需要监听其他网络设备的通信类型，并根据其他网络设备的通信类型来确定本网络设备的通信类型。当然，该第二组网络设备也可以将自身的通信类型发给本组的网络设备。对于该实现方案，第一组网络设备只需要发送通信类型，而不需要预留时间去接收其他网络设备发送的通信类型，因此可以节约时间资源。第二组网络设备可以不发送自身的通信类型，而只是监听第一组网络设备的通信类型，因此也可以节约时间资源。其中，对于发送通信类型来说，为节约时间资源，还可以进一步采用前一种实现方案，即通过隐式方式将携带通信类型的信息携带在其他信号或信息中。
对于上述对网络设备进行分组而言，这些网络设备可以是具有相同功能的网络设备，主要根据在系统中的地理位置等因素进行分组。比如，将地理位置上距离较远的网络设备设置为第一网络设备，该分组方法可以让第一网络设备之间的路径损耗较大，从而大幅度的降低这类网络设备之间使用灵活双工技术所带来的干扰。另外，为保证网络设备的公平性，还可以采用轮询等配置方式，比如，将系统中的网络设备分为两组或更多的组，在一个时间段将某一个或某几个组中的网络设备作为第一网络设备，在下一个时间段则换其他组中的网络设备作为第一网络设备。
下面结合附图对与上述方法实施例对应的装置进行描述。
如图2所示，本申请实施例的第一网络设备可以包括处理单元201和发送单元202。该发送单元202具体可以用于执行上述方法实施例中第一网络设备执行的各种信息发送；该处理单元201则具体可以用于执行上述方法实施例中第一网络设备除了信息收发之外的其他处理。
比如，该处理单元201可以用于确定该网络设备在第二时间段内的通信类型；该发送单元202可以用于在所述通信类型为下行通信或空闲时，在第一时间段内通过空口向第二网络设备发送信号，所述信号用于指示所述通信类型。
如图3所示，本申请实施例的第二网络设备可以包括接收单元301和处理单元302。该接收单元301具体可以用于执行上述方法实施例中第二网络设备执行的各种信息接收；该处理单元302则具体可以用于执行上述方法实施例中第二网络设备除了信息收发之外的其他处理。
比如，该接收单元301可以用于在第一时间段内通过空口监听第一网络设备发送的信号，该信号用于指示该第一网络设备在第二时间段内的通信类型为下行通信或空闲；该处理单元302可以用于如果该接收单元接收到该信号，则根据该信号确定该第一网络设备在所述第二时间段内的通信类型为下行通信或空闲。
如图4所示，本申请实施例的终端设备可以包括处理单元401和接收单元402，还可以进一步包括发送单元403。该处理单元401具体可以用于执行上述方法实施例中终端设备除了信息收发之外的其他处理；该接收单元402则具体可以用于执行上述方法实施例中终端设备执行的各种信息接收；该发送单元403具体可以用于执行上述方法实施例中终端设备执行的各种信息发送。
比如，该接收单元402可以用于获取在第一时间段和第二时间段内第一网络设备与所述终端设备的通信类型的信息；该处理单元402在所述通信类型为上行通信时，通过该发送单元403在所述第一时间段内向所述第一网络设备发送上行信号。
该本申请装置实施例的具体描述以及效果与上述方法实施例一致，为简洁起见不 再赘述。
对于上述网络设备和终端设备来说，其中的处理单元、发送单元和接收单元可以是处理器、发送器和接收器。
本领域普通技术人员可以理解，实现上述方法实施方式中的部分步骤是可以通过程序来指令相关的硬件来完成，所述的程序可以存储于计算机可读取存储介质中，该程序在执行时，可以包括前述本发明实施例基于MIP技术的通信方法各个实施方式的内容。这里所称得的存储介质，如：ROM/RAM、磁碟、光盘等。
虽然通过参照本申请的某些优选实施方式，已经对本发明实施例进行了图示和描述，但本领域的普通技术人员应该明白，可以在形式上和细节上对其作各种改变，而不偏离本申请的范围。
Claims (17)
- 一种信息传输方法，其特征在于，所述方法包括：第一网络设备确定所述第一网络设备在第二时间段内的通信类型；在所述通信类型为下行通信或空闲时，所述第一网络设备在第一时间段内通过空口向第二网络设备发送信号，所述信号用于指示所述通信类型。
- 根据权利要求1所述的方法，其特征在于，所述第一网络设备确定在第二时间段内该第一网络设备的通信类型，包括：所述第一网络设备根据所述第一网络设备在所述第二时间段内的业务确定所述第一网络设备在所述第二时间段内的通信类型。
- 根据权利要求1或2所述的方法，其特征在于，所述方法进一步包括：所述第一网络设备向终端设备发送指示信息，其中，所述指示信息用于指示所述通信类型，或者用于指示所述通信类型为上行通信。
- 一种处理方法，其特征在于，所述方法包括：第二网络设备在第一时间段内通过空口监听第一网络设备发送的信号，所述信号用于指示所述第一网络设备在第二时间段内的通信类型为下行通信或空闲；如果所述第二网络设备接收到所述信号，则根据所述信号确定所述第一网络设备在所述第二时间段内的通信类型为下行通信或空闲。
- 根据权利要求4所述的方法，其特征在于，所述方法进一步包括：如果所述第二网络设备没有接收到所述信号，则确定所述第一网络设备在所述第二时间段内通信类型为上行通信。
- 根据权利要求4所述的方法，其特征在于，所述方法进一步包括：所述第二网络设备在所述第一时间段内监听所述第一网络设备所管辖的终端设备发送的上行信号；如果所述第二网络设备没有接收到所述信号，且接收到所述上行信号，则确定所述第一网络设备在所述第二时间段内的通信类型为上行通信。
- 一种网络设备，其特征在于，所述网络设备作为第一网络设备，所述网络设备包括处理单元，用于确定所述网络设备在第二时间段内的通信类型；发送单元，用于在所述通信类型为下行通信或空闲时，在第一时间段内通过空口向第二网络设备发送信号，所述信号用于指示所述通信类型。
- 根据权利要求7所述的网络设备，其特征在于，所述处理单元用于根据所述第一网络设备在所述第二时间段内的业务确定所述第一网络设备在所述第二时间段内的通信类型。
- 根据权利要求7或8所述的网络设备，其特征在于，所述发送单元进一步用于，向终端设备发送指示信息，其中，所述指示信息用于指示所述通信类型，或者用于指示所述通信类型为上行通信。
- 一种网络设备，其特征在于，所述网络设备作为第二网络设备，所述网络设备包括：接收单元，用于在第一时间段内通过空口监听第一网络设备发送的信号，所述信号用于指示所述第一网络设备在第二时间段内的通信类型为下行通信或空闲；处理单元，用于如果所述接收单元接收到所述信号，则根据所述信号确定所述第一网络设备在所述第二时间段内的通信类型为下行通信或空闲。
- 根据权利要求10所述的网络设备，其特征在于，所述处理单元进一步用于，如果所述接收单元没有接收到所述信号，则确定所述第一网络设备在所述第二时间段内通信类型为上行通信。
- 根据权利要求10所述的网络设备，其特征在于，所述接收单元进一步用于，在所述第一时间段内监听所述第一网络设备所管辖的终端设备发送的上行信号；所述处理单元进一步用于，如果所述接收单元没有接收到所述信号，且接收到所述上行信号，则确定所述第一网络设备在所述第二时间段内的通信类型为上行通信。
- 根据权利要求1至12任意一项所述的方法或网络设备，其特征在于，所述信号为导频信号或控制信号或数据信号。
- 根据权利要求1至13任意一项所述的方法或网络设备，其特征在于，所述第一网络设备属于第一组网络设备，所述第二网络设备属于第二组网络设备，所述第一组网络设备中的每个网络设备将自身通信类型的信息只发送给所述第二组网络设备，且不监听其他网络设备的通信类型的信息。
- 根据权利要求1至14任意一项所述的方法或网络设备，其特征在于，所述第一网络设备属于第一组网络设备，所述第二网络设备属于第二组网络设备，所述第二组网络设备监听所述第一组网络设备的通信类型的信息，且不向所述第一组网络设备发送自身通信类型的信息。
- 根据权利要求1至15任意一项所述的方法或网络设备，其特征在于，在同一时段内，对于同一个频段，所述第一网络设备与所述第二网络设备的通信类型能够不同。
- 根据权利要求1至16任意一项所述的方法或网络设备，其特征在于，所述第一时间段在所述第二时间段之前，或者所述第二时间段包括所述第一时间段，且所述第一时间段在所述第二时间段最开始的时间。
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| CN104811285A (zh) * | 2014-01-23 | 2015-07-29 | 华为技术有限公司 | 一种协作通信方法及设备 |
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| CN1960210B (zh) * | 2005-11-04 | 2011-06-22 | 上海原动力通信科技有限公司 | 降低不同帧结构的时分双工系统共存干扰的方法及应用 |
| CN101183924B (zh) * | 2007-12-19 | 2010-09-29 | 华为技术有限公司 | 用户数据报协议复用和复用协商的方法及装置 |
| CN101572686A (zh) * | 2008-04-30 | 2009-11-04 | 华为技术有限公司 | 信息传输方法及装置 |
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| WO2012134581A1 (en) * | 2011-04-01 | 2012-10-04 | Intel Corporation | Flexible configuration of uplink and downlink ratio by exchanging information using an x2 interface |
| CN105432033A (zh) * | 2013-08-09 | 2016-03-23 | 瑞典爱立信有限公司 | 用于在采用灵活子帧的通信网络中使用的方法和网络节点 |
| CN104811285A (zh) * | 2014-01-23 | 2015-07-29 | 华为技术有限公司 | 一种协作通信方法及设备 |
| CN106160962A (zh) * | 2015-03-23 | 2016-11-23 | 联想(北京)有限公司 | 信息处理方法及基站 |
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| US20200022220A1 (en) | 2020-01-16 |
| BR112019018219A2 (pt) | 2020-06-23 |
| CN108631901B (zh) | 2020-03-10 |
| EP3576474A1 (en) | 2019-12-04 |
| EP3576474A4 (en) | 2020-02-19 |
| EP3576474B1 (en) | 2023-11-01 |
| CN108631901A (zh) | 2018-10-09 |
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