WO2018171006A1 - 干扰测量方法及相关设备 - Google Patents
干扰测量方法及相关设备 Download PDFInfo
- Publication number
- WO2018171006A1 WO2018171006A1 PCT/CN2017/083151 CN2017083151W WO2018171006A1 WO 2018171006 A1 WO2018171006 A1 WO 2018171006A1 CN 2017083151 W CN2017083151 W CN 2017083151W WO 2018171006 A1 WO2018171006 A1 WO 2018171006A1
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- interference measurement
- terminal
- measurement signal
- signal
- network device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
Definitions
- the present application relates to the field of communication technologies, and more specifically, to an interference measurement method and related equipment.
- the flexible duplex can adaptively allocate uplink and downlink resources according to the distribution of uplink and downlink services, which can effectively improve the resource utilization of the communication system, and thus can meet the demand for asymmetric characteristics of the future network.
- One of the duplex modes of the flexible duplex technology is a flexible band technology, which configures some uplink frequency bands in a Frequency Division Duplex (FDD) system as flexible frequency bands.
- the flexible frequency band is allocated to the uplink transmission or the downlink transmission according to the distribution of the uplink and downlink services in the network, so that the uplink and downlink spectrum resources are matched with the uplink and downlink service requirements, thereby improving spectrum utilization.
- the network may configure the frequency band originally used for uplink transmission as the frequency band used for downlink transmission.
- TDD Time Division Duplex
- LTE Long Term Evolution
- DL downlink
- Interference When the service requires that some uplink (UL) bands are configured as the downlink (DL) band, the cross-link interference of neighboring cells on the same time domain/frequency domain resource may be caused, that is, between different link directions. Interference.
- the present application provides an interference measurement method for measuring cross-link interference existing between adjacent cells, that is, interference between different link directions, and further performing power control based on the measured interference.
- the present application provides an interference measurement method, including: a first terminal transmitting an interference measurement signal on an interference measurement resource; wherein the interference measurement signal is a signal used to measure interference between links in different directions, The different directions include a downlink direction between the first terminal and the first network device, and an uplink direction between the second terminal and the second network device, where the second terminal is configured according to the interference measurement resource information and the interference measurement signal information. Measuring the interference measurement signal to obtain the strength of the interference measurement signal; the second terminal controls according to the strength of the interference measurement signal The second terminal transmits the power of the data signal to the second network device.
- the first terminal sends the interference measurement signal on the interference measurement resource, including: the first terminal receives the indication information of the interference measurement resource and/or the indication information of the interference measurement signal; where the indication information of the interference measurement resource includes Interference at least one of a time domain location, a frequency domain location, and a spatial domain location of the measurement signal transmission; the first terminal indicates, by the indication information of the interference measurement signal, the interference measurement resource indicated by the indication information of the interference measurement resource Interference measurement signal.
- the first terminal receives the indication information of the interference measurement resource and/or the indication information of the interference measurement signal, where the first terminal receives the indication information of the interference measurement resource sent by the first network device or the second network device.
- the first terminal receives indication information of the interference measurement signal sent by the first network device or the second network device.
- the first terminal receives the indication information of the interference measurement resource and/or the indication information of the interference measurement signal, including: configuring the indication information of the interference measurement resource and/or the interference measurement signal by using the OAM for the first terminal. Instructions.
- the time domain location comprises: a subframe, a time slot, a mini subframe, a minislot, an OFDM symbol, or a resource unit of less than one OFDM symbol.
- the frequency domain location includes: a frequency band, a sub-band, a frequency domain offset, a control channel element, or a physical resource block.
- the spatial domain location comprises: information of a transmission port or a transmission beam, wherein the information of the transmission beam is a beam-related identification.
- the time domain location is located in any one of the following subframes: a subframe including a PDCCH, a PDSCH, and a PUCCH, a subframe including a PDCCH, a PUSCH, and a PUCCH, and a subframe including a PDCCH and a PDSCH, including a PUCCH and a PUSCH. Subframe.
- the interference measurement resource is one or more OFDM symbols after the PDCCH; if the time domain location is located in a PDCCH, a PDSCH, and In the subframe of the PUCCH, the interference measurement resource is one or more OFDM symbols before the PUCCH.
- the interference measurement signal is: a demodulation reference signal, a channel state information reference signal, a response reference signal, a preamble, or a novel signal.
- the indication information of the interference measurement signal includes at least one of the following: a sequence length, a cyclic shift, a physical cell identifier, and an initial value of the pseudo-random sequence.
- the indication information of the interference measurement signal further includes: a transmission port or a transmission beam of the interference measurement signal, wherein the transmission beam is a beam-related identifier.
- the beam-related identification includes a synchronization signal resource block, a time domain identification of the synchronization signal, or an identification of the reference signal.
- the second terminal controls, according to the strength of the interference measurement signal, the power of the second terminal to send the data signal to the second network device, where the second terminal receives the feature of the interference measurement signal and the location of the data signal.
- a relationship between the location includes at least one of a time domain, a frequency domain, and a spatial domain; the second terminal determines a feature of the interference measurement signal sent by the first terminal, and determines the first according to the relationship a position of the data signal corresponding to the interference measurement signal sent by the terminal; the second terminal controls the second terminal to determine according to the strength of the interference measurement signal The position of the control data signal transmission power.
- the second terminal receives a relationship between a feature of the interference measurement signal and a location of the data signal, where the second terminal receives the feature and data of the interference measurement signal sent by the first network device or the second network device.
- the relationship between the positions of the signals is a relationship between a feature of the interference measurement signal and a location of the data signal.
- the second terminal receives a relationship between a feature of the interference measurement signal and a location of the data signal, including: configuring, by the OAM, between the feature of the interference measurement signal and the location of the data signal for the second terminal relationship.
- the indication information of the interference measurement resource, the indication information of the interference measurement signal, and any one of a relationship between a feature of the interference measurement signal and a location of the data signal passes through RRC signaling, MAC At least one of layer signaling or physical layer signaling is sent.
- the indication information of the interference measurement resource, the indication information of the interference measurement signal, and any relationship between the characteristics of the interference measurement signal and the location of the data signal are pre-configured by RRC signaling. , activated or deactivated by physical layer signaling.
- the interference measurement resource and/or the interference measurement signal are time domain orthogonal, frequency domain orthogonal or code domain orthogonal.
- the strength of the interference measurement signal measured by the second terminal includes any one or more of the following items: reference signal received power, reference signal received quality, received signal strength indication, channel quality indicator, and Channel status indication.
- the second terminal controls, according to the strength of the interference measurement signal, the power of the second terminal to send the data signal to the second network device, including: the second terminal according to the strength of the interference measurement signal and the uplink Determining a correspondence between the modulation and coding policies to determine an uplink modulation and coding strategy to the second network device; or determining, by the second terminal, the correspondence between the strength of the interference measurement signal and the transmission power control parameter, to the second network device Uplink transmission power.
- the second terminal receives the signaling sent by the second network device, where the signaling includes: a correspondence between an intensity of the interference measurement signal and a modulation coding strategy of the uplink, and/or the interference measurement The correspondence between the strength of the signal and the transmission power control parameters.
- the signaling is at least one of radio resource control signaling, MAC layer signaling, or physical layer signaling.
- the physical layer signaling is signaling in uplink grant signaling or downlink control information.
- the transmission power control parameter includes any one or more of the following: a target power value, a path loss compensation factor, a closed loop transmission power value, and a cross-link interference parameter.
- the cross-link interference parameter is sent by the second network device to the second terminal through high layer signaling; when the interference measurement is short-term, the cross-link The interference parameter is sent by the second network device to the second terminal by using MAC layer signaling or physical layer signaling.
- the correspondence between the strength of the interference measurement signal and the modulation coding strategy of the uplink includes: a correspondence between an intensity level of the interference measurement signal and a modulation coding strategy of the uplink.
- the correspondence between the strength of the interference measurement signal and the transmission power control parameter includes: a correspondence between an intensity level of the interference measurement signal and a transmission power control parameter.
- the intensity level is determined by a signal strength threshold.
- an interference measurement method including:
- the second terminal sends an interference measurement signal on the interference measurement resource, where the interference measurement signal is a signal used to measure interference between links in different directions, where the different direction includes a downlink direction between the first terminal and the first network device And an uplink direction between the second terminal and the second network device; the first terminal measures the interference measurement signal according to the information of the interference measurement resource and the information of the interference measurement signal, to obtain the interference measurement signal. strength.
- the interference measurement signal is a signal used to measure interference between links in different directions, where the different direction includes a downlink direction between the first terminal and the first network device And an uplink direction between the second terminal and the second network device; the first terminal measures the interference measurement signal according to the information of the interference measurement resource and the information of the interference measurement signal, to obtain the interference measurement signal. strength.
- the interference measurement method further includes the first terminal transmitting the strength of the interference measurement signal to the first network device.
- the interference measurement method further includes: the first network device controlling, according to the strength of the interference measurement signal, the power of the first network device to send the data signal to the first terminal.
- the type of the strength of the interference measurement signal measured by the first terminal includes any one or more of the following items: reference signal received power, reference signal received quality, received signal strength indication, channel quality Indication and channel status indication.
- the interference measurement method further includes the first terminal establishing an association relationship between a type of the strength of the interference measurement signal and an uplink direction.
- the interference measurement method further includes: the first terminal transmitting an association relationship between a type of the strength of the interference measurement signal and an uplink direction to the first network device.
- the first terminal sends the association between the type of the strength of the interference measurement signal and the uplink direction to the first network device, where the first terminal passes any of the following two resources.
- a resource the association between the type of the strength of the interference measurement signal and the uplink direction is sent to the first network device; where the resource includes: the reserved frame located in the PUCCH in the subframe including the PDCCH, the PDSCH, and the PUCCH The reserved resource located in the PUSCH or PUCCH in the subframe including the PDCCH, the PUSCH, and the PUCCH.
- the first terminal sends the strength of the interference measurement signal to the first network device, where the first terminal sends the interference measurement signal by using any one of the following two resources:
- the strength is sent to the first network device, where the resource includes: the reserved resource located in the PUCCH in the subframe including the PDCCH, the PDSCH, and the PUCCH, and the pre-presence of the PUSCH or the PUCCH in the subframe including the PDCCH, the PUSCH, and the PUCCH Resources left.
- the reserved resource is included in at least one of RRC signaling, MAC layer signaling, and physical layer signaling sent by the first network device.
- the present application provides an interference measurement method, including: a first network device sends an interference measurement signal to a second network device on an interference measurement resource; wherein the interference measurement signal is used to measure a link between different directions.
- the interference signal is measured by the second network device according to the information of the interference measurement resource and the information of the interference measurement signal, to obtain the strength of the interference measurement signal.
- the interference measurement method further includes the second network device transmitting the strength of the interference measurement signal to the first network device.
- the interference measurement method further includes: the first network device transmitting the indication information of the interference measurement resource and/or the indication information of the interference measurement signal to the first terminal, so that the first terminal receives the indication according to the indication information.
- Number Data processing based on rate matching or puncturing.
- the interference measurement method further includes: the second network device transmitting the indication information of the interference measurement resource and/or the indication information of the interference measurement signal to the second terminal, so that the second terminal performs uplink according to the indication information. Data rate matching or punctured data operations for transferring data.
- the indication information of the interference measurement resource and/or the indication information of the interference measurement signal is sent by at least one of RRC signaling, MAC layer signaling, and physical layer signaling.
- the application provides a terminal, including: a receiver, configured to receive indication information of an interference measurement resource and/or indication information of an interference measurement signal; where the indication information of the interference measurement resource includes a time when the interference measurement signal is transmitted. At least one of a domain location, a frequency domain location, and a spatial domain location; a transmitter, configured to send, by the interference measurement resource indicated by the indication information of the interference measurement resource, an interference measurement signal indicated by the indication information of the interference measurement signal;
- the interference measurement signal is a signal for measuring interference between links in different directions.
- the receiver is configured to receive the indication information of the interference measurement resource and/or the indication information of the interference measurement signal
- the method includes: a receiver, configured to receive an indication of the interference measurement resource sent by the first network device or the second network device. And receiving indication information of the interference measurement signal sent by the first network device or the second network device.
- the receiver is configured to receive the indication information of the interference measurement resource and/or the indication information of the interference measurement signal
- the method includes: a receiver, configured to receive indication information for configuring the interference measurement resource by using the OAM for the first terminal, and / or indication of interference with the measurement signal.
- the time domain location comprises: a subframe, a time slot, a mini subframe, a minislot, an OFDM symbol, or a resource unit of less than one OFDM symbol.
- the frequency domain location includes: a frequency band, a sub-band, a frequency domain offset, a control channel element, or a physical resource block.
- the spatial domain location comprises: information of a transmission port or a transmission beam, wherein the information of the transmission beam is a beam-related identification.
- the time domain location is located in any one of the following subframes: a subframe including a PDCCH, a PDSCH, and a PUCCH, a subframe including a PDCCH, a PUSCH, and a PUCCH, and a subframe including a PDCCH and a PDSCH, including a PUCCH and a PUSCH. Subframe.
- the interference measurement resource is one or more OFDM symbols after the PDCCH; if the time domain location is located in a PDCCH, a PDSCH, and In the subframe of the PUCCH, the interference measurement resource is one or more OFDM symbols before the PUCCH.
- the interference measurement signal is: a demodulation reference signal, a channel state information reference signal, a response reference signal, a preamble, or a novel signal.
- the indication information of the interference measurement signal includes at least one of the following: a sequence length, a cyclic shift, a physical cell identifier, and an initial value of the pseudo-random sequence.
- the indication information of the interference measurement signal further includes: a transmission port or a transmission beam of the interference measurement signal, wherein the transmission beam is a beam-related identifier.
- the beam-related identification includes a synchronization signal resource block, a time domain identification of the synchronization signal, or an identification of the reference signal.
- the receiver is configured to receive the indication information of the interference measurement resource and/or the indication information of the interference measurement signal, including: the receiver, specifically, receiving at least one of RRC signaling, MAC layer signaling, or physical layer signaling.
- the signaling includes indication information of the interference measurement resource and/or indication information of the interference measurement signal.
- the receiver is configured to receive the indication information of the interference measurement resource and/or the indication information of the interference measurement signal
- the method includes: a receiver, configured to receive RRC signaling, where the RRC signaling is used to pre-configure the interference. And indication information of the measurement resource and/or the indication information of the interference measurement signal; and configured to receive physical layer signaling, where the physical layer signaling is used to activate or deactivate the pre-configured indication information of the interference measurement resource and / or indication information of the interference measurement signal.
- the interference measurement resource and/or the interference measurement signal are time domain orthogonal, frequency domain orthogonal, or code domain orthogonal.
- the application provides a terminal, including: a processor, configured to measure, according to information of an interference measurement resource and information of an interference measurement signal, an interference measurement signal transmitted by another terminal, to obtain an intensity of the interference measurement signal.
- the interference measurement signal is a signal for measuring interference between links in different directions, the different direction includes a downlink direction between the other terminal and the first network device, and between the terminal and the second network device The uplink direction; and controlling the power of the terminal to transmit the data signal to the second network device according to the strength of the interference measurement signal.
- the terminal further includes: a receiver configured to receive a relationship between a feature of the interference measurement signal and a location of the data signal, wherein the location includes at least one of a time domain, a frequency domain, and a spatial domain;
- the processor is configured to control, according to the strength of the interference measurement signal, the power of the terminal to send the data signal to the second network device, where the processor is specifically configured to determine a feature of the interference measurement signal sent by the first terminal, and according to the Determining a position of the data signal corresponding to the interference measurement signal sent by the first terminal; and controlling, according to the strength of the interference measurement signal, the second terminal to control the transmission power of the data signal at the determined position.
- the receiver is configured to receive a relationship between a feature of the interference measurement signal and a location of the data signal, including: a receiver, configured to receive a feature of the interference measurement signal sent by the first network device or the second network device The relationship between the locations of the data signals.
- the receiver is configured to receive a relationship between a feature of the interference measurement signal and a location of the data signal, including: a receiver, configured to receive a feature and a data signal for configuring the interference measurement signal for the second terminal by using OAM The relationship between the locations.
- the receiver is configured to receive a relationship between a feature of the interference measurement signal and a location of the data signal, including: a receiver, configured to receive at least one of RRC signaling, MAC layer signaling, or physical layer signaling. And the signaling includes a relationship between a feature of the interference measurement signal and a location of the data signal.
- the receiver is configured to receive a relationship between a feature of the interference measurement signal and a location of the data signal, including: a receiver, specifically configured to receive RRC signaling, where the RRC signaling is used to pre-configure the interference measurement signal. a relationship between a feature and a location of the data signal; and for receiving physical layer signaling for activating or deactivating between a feature of the pre-configured interference measurement signal and a location of the data signal relationship.
- the strength of the interference measurement signal measured by the processor includes any one or more of the following items: reference signal received power, reference signal received quality, received signal strength indication, channel quality indicator, and channel. Status indication.
- the processor is configured to control, according to the strength of the interference measurement signal, the power of the terminal to send a data signal to the second network device, where the processor includes: a processor, specifically, according to the strength of the interference measurement signal and the uplink. Corresponding relationship between modulation coding strategies, determining an uplink modulation and coding strategy to the second network device; or determining uplink transmission to the second network device according to a correspondence between the strength of the interference measurement signal and the transmission power control parameter power.
- the terminal further includes: a receiver, configured to receive signaling sent by the second network device, where the signaling includes: a correspondence between an intensity of the interference measurement signal and an uplink modulation coding strategy, and / or a correspondence between the strength of the interference measurement signal and the transmission power control parameter.
- the signaling is at least one of radio resource control signaling, MAC layer signaling, or physical layer signaling.
- the physical layer signaling is signaling in uplink grant signaling or downlink control information.
- the transmission power control parameter includes any one or more of the following: a target power value, a path loss compensation factor, a closed loop transmission power value, and a cross-link interference parameter.
- the receiver is configured to receive a cross-link interference parameter transmitted by the second network device by the second network device to the second terminal when the interference measurement is medium or long; and when the interference measurement is short-term, receive A cross-link interference parameter sent by the second network device to the second terminal by using MAC layer signaling or physical layer signaling.
- the correspondence between the strength of the interference measurement signal and the modulation coding strategy of the uplink includes: a correspondence between an intensity level of the interference measurement signal and a modulation coding strategy of the uplink.
- the correspondence between the strength of the interference measurement signal and the transmission power control parameter includes: a correspondence between an intensity level of the interference measurement signal and a transmission power control parameter.
- the intensity level is determined by a signal strength threshold.
- the application provides a terminal, including: a processor, configured to measure, according to information of an interference measurement resource and information of an interference measurement signal, an interference measurement signal transmitted by another terminal, to obtain an intensity of the interference measurement signal.
- the interference measurement signal is a signal for measuring interference between links in different directions, the different direction includes a downlink direction between the other terminal and the first network device, and between the terminal and the second network device The upward direction.
- the terminal further includes: a transmitter: the strength for the interference measurement signal is sent to the first network device.
- the type of the strength of the interference measurement signal measured by the processor includes any one or more of the following items: reference signal received power, reference signal received quality, received signal strength indication, channel quality indicator And channel status indication.
- the processor is further configured to establish an association between a type of strength of the interference measurement signal and an uplink direction.
- the terminal further includes: a transmitter: configured to send an association between a type of strength of the interference measurement signal and an uplink direction to the first network device.
- the transmitter is configured to send the association between the type of the strength of the interference measurement signal and the uplink direction to the first network device, including: a transmitter, specifically for using any one of the following two resources: a resource, the association between the type of the strength of the interference measurement signal and the uplink direction is sent to the first network device;
- the resource includes: a reserved resource located in the PUCCH in the subframe including the PDCCH, the PDSCH, and the PUCCH, and a reserved resource located in the PUSCH or the PUCCH in the subframe including the PDCCH, the PUSCH, and the PUCCH.
- the transmitter sends the strength of the interference measurement signal to the first network device, including: a transmitter, specifically for using the strength of the interference measurement signal by using any one of the following two resources: Sending to the first network device, where the resource includes: reserved resources located in the PUCCH in the subframe including the PDCCH, the PDSCH, and the PUCCH, reserved in the PUSCH or PUCCH in the subframe including the PDCCH, the PUSCH, and the PUCCH Resources.
- the reserved resource is included in at least one of RRC signaling, MAC layer signaling, and physical layer signaling sent by the first network device.
- the application further provides a network device, including: a transmitter, configured to send an interference measurement signal to another network device on an interference measurement resource; wherein the interference measurement signal is used to measure links between different directions The signal of the interference.
- the transmitter is further configured to send indication information of the interference measurement resource and/or indication information of the interference measurement signal to a terminal associated with the network device, so that the terminal receives according to the indication information.
- indication information of the interference measurement resource and/or indication information of the interference measurement signal to a terminal associated with the network device, so that the terminal receives according to the indication information.
- the indication information of the interference measurement resource and/or the indication information of the interference measurement signal is sent by at least one of RRC signaling, MAC layer signaling, and physical layer signaling.
- the application provides a network device, including: a processor, configured to measure, according to information of an interference measurement resource and information of an interference measurement signal, an interference measurement signal transmitted by another network device, to obtain the interference measurement. The strength of the signal.
- the network device further includes a transmitter for transmitting the strength of the interference measurement signal to the another network device.
- the network device further includes: a transmitter, configured to send, to the terminal associated with the network device, indication information of the interference measurement resource and/or indication information of an interference measurement signal, so that the terminal is configured according to the The indication information is used for rate matching or puncturing data operations of the uplink transmission data.
- the indication information of the interference measurement resource and/or the indication information of the interference measurement signal is sent by at least one of RRC signaling, MAC layer signaling, and physical layer signaling.
- FIG. 1 is a schematic diagram of two TDD configuration modes allowed by a cell provided by the present application
- FIG. 2 is a schematic diagram of interference between adjacent cells provided by the present application.
- FIG. 3 is a system architecture diagram of interference generated between adjacent cells provided by the present application.
- FIG. 5 is a schematic diagram of a novel subframe provided by the present application.
- FIG. 7 is still another schematic flowchart of interference measurement based power control provided by the present application.
- FIG. 8 is a schematic structural diagram of a hardware of a first terminal provided by the present application.
- FIG. 9 is a schematic structural diagram of a hardware of a second terminal provided by the present application.
- FIG. 10 is a schematic diagram of another hardware structure of a first terminal provided by the present application.
- FIG. 11 is a schematic structural diagram of a hardware of a first base station provided by the present application.
- FIG. 12 is a schematic structural diagram of a hardware of a second base station provided by the present application.
- a base station and a terminal can work in a flexible duplex mode, and between one neighboring cell using a flexible duplex mode, data transmission in one direction of one cell is in another direction of another cell.
- Data transmission causes interference, and interference caused by such communication links in different directions may be referred to as cross-link interference.
- the data transmission may be a transmission on a control channel or a data channel, and data transmission in one direction of one cell may cause interference in data transmission in another direction of another cell, including: a direction of a cell Interference between data transmission of a control channel and data transmission of a control channel of another direction of another cell, or data transmission of a control channel of one direction of one cell and a data channel of another direction of another cell Interference between data transmissions, or interference between data transmission of a data channel in one direction of one cell and data transmission of a data channel in another direction of another cell.
- the duplex mode may include two types: Time Division Duplex (TDD) and Frequency Division Duplex (FDD).
- TDD Time Division Duplex
- FDD Frequency Division Duplex
- the configuration of the uplink data and the downlink data may include seven of the following table.
- D indicates that the direction of the subframe is downlink
- U indicates that the direction of the subframe is uplink
- S indicates a special subframe.
- the direction of the subframes with the sequence numbers 0, 1, 2, and 5 is fixed, and other serial numbers.
- the direction of the sub-frame is varied.
- a subframe having a fixed direction, such as a subframe numbered 0, 1, 2, and 5, may be referred to as a fixed subframe, and a subframe whose direction is changed, such as numbers 3, 4, 6, 7, 8, and 9, may be referred to as a flexible sub-frame. frame.
- the fixed subframe and the flexible subframe may differ depending on the manner in which the TDD configuration is allowed to be employed.
- a cell supports only the TDD configuration mode with sequence numbers 0 and 2.
- the configuration mode with sequence number 0 is changed before the change, and the configuration mode with sequence number 2 is changed.
- the sequence number is 0.
- the subframes of 1, 2, 5, 6, and 7 are fixed subframes, and the subframes of sequence numbers 3, 4, 8, and 9 are flexible subframes (Flexible Subframes).
- cell 1 uses a TDD configuration mode with sequence number 1
- cell 2 uses a TDD configuration mode with sequence number 0
- cell 3 uses a TDD configuration mode with sequence number 2. Comparing the three TDD configurations, it can be found that for the base station eNB#1, the subframe sf#3 and the subframe sf#4 are flexible subframes, and the interference strengths of the two subframes are different from the interference strengths received by other subframes. of. Further, for the base station eNB#1, the subframe sf#3 is interfered by the subframe of the direction D arranged by the base station eNB#3, and the subframe sf#4 is configured by the base station eNB#2. The interference of the subframes in the direction U is different, and the interference states of the two subframes are also different.
- the technical solution of the present application is not limited to the foregoing application scenario, and interference may also exist in other application scenarios.
- the above is to change the TDD configuration mode in the time domain, of course, changing the TDD configuration mode in the frequency domain or changing the transmission direction in the entire frequency domain, for example, changing the TDD configuration mode on the entire specific frequency band or some subbands in the frequency band or Changing the transmission direction in a particular frequency band or on some sub-bands in the frequency band may also cause interference between adjacent cells.
- not only changing the TDD configuration mode may cause interference, but also changing the FDD configuration mode may also have the above interference.
- the base station and the terminal work in a flexible duplex mode, and the used communication link is a link with different directions, which may also be referred to as a cross link.
- a base station in a cell may dynamically change the transmission direction of the link resource due to service requirements, thereby causing interference between multiple neighboring cells including the cell.
- the configuration of the transmission direction is dynamically changed, the resulting interference is dynamic.
- Interference can affect the data signals transmitted by the link, which can be adjusted by controlling the transmission power of the data signals. For example, for an interfered terminal, in the case of strong interference, the transmission power of the data signal of the terminal causing the interference can be reduced, and in the case of low interference, the transmission power of the data signal of the terminal causing the interference is allowed to be increased. To ensure the reliability of data transmission / reception.
- the terminal in the above example may be replaced by a base station, that is, when interference and interference occur between the base stations, for an interfered base station, when the interference is strong, the transmission power of the data signal of the base station causing the interference may be reduced. In the case of low interference, the transmission power of the data signal of the base station causing the interference is allowed to be increased to ensure the reliability of data transmission/reception.
- a power control scheme in an Enhanced Interference Management and Traffic Adaptation (eIMTA) technology in which a subframe in a TDD configuration mode of a serving cell and a TDD configuration mode of a neighboring cell are set.
- the type of interference between the subframes in the medium, and setting the transmission power for the devices in the serving cell based on the interference type.
- this technique is based on semi-static TDD configuration when dividing the subframe resources to which power control is applied.
- the distribution and related signaling notifications are not timely enough, and therefore are not applicable to the above-described flexible duplex mode communication system using a relatively dynamic transmission direction configuration.
- the present application provides a scheme for controlling transmission power based on measurement of cross-link interference.
- the present application can dynamically measure interference caused by the configuration. And based on this measurement, the transmission power is adjusted in time.
- two cells in the adjacent cell are taken as an example for description.
- two cells may be referred to as a first cell and a second cell.
- the system architecture of the present technical solution is as shown in FIG. 3, the base station in the first cell is referred to as the first base station, the base station in the second cell is referred to as the second base station, and the terminal in the first cell is referred to as the first terminal, A terminal in a two cell is referred to as a second terminal.
- the second terminal works in the uplink mode, and the first terminal works in the downlink mode, that is, when the second terminal sends the uplink data signal, it may cause interference to the first terminal receiving the downlink data signal.
- the first terminal/second terminal in the present application may be one or more.
- the first base station may be summarized as a first network device
- the second base station may be summarized as a second network device.
- FIG. 4 a flow diagram of power control based on interference measurement is shown, which specifically includes the following steps S401-S407.
- the first base station sends information of the interference measurement resource to the first terminal and the second base station.
- the first base station and the second base station are located in two adjacent cells.
- the first base station may send the above information to the first terminal and the second base station at the same time, or may not send the information at the same time.
- the interference measurement resource is a resource for transmitting an interference measurement signal, and the interference measurement signal is a signal for measuring the interference strength between links in different directions.
- the interference measurement resource may also be considered as a resource for measuring interference, and the interference measurement signal may also be considered as a signal for measuring interference.
- Interference measurement can also be called interference detection, interference monitoring, interference sensing, and the like.
- the interference is interference between transmissions in different directions.
- Information that interferes with measurement resources (which may also be referred to as indication information or configuration information) is used to indicate what type of resource is used to transmit the interference measurement signal.
- the information of the interference measurement resource may include any one or more of the following: the transmission time position of the interference measurement signal, the transmission frequency domain location, and the spatial domain location, that is, the interference measurement signal may be transmitted. At least one of a time position, a frequency domain location, and a spatial domain location represents an interference measurement resource.
- the time position (or time domain resource) for transmitting the interference measurement signal may include a subframe, a slot, a mini slot, a mini subframe, and an orthogonal frequency division. (Orthogonal Frequency Division Multiplexing, OFDM) symbols or resource units of less than one OFDM symbol. Wherein, the OFDM symbol may be one or more OFDM symbols.
- the frequency domain location (or frequency domain resource) for transmitting the interference measurement signal may include a band, a subband, a frequency offset, a control channel element (CCE), or a physical resource. Physical resource block (PRB). Transmission dry
- the spatial domain location (or spatial domain resource) of the interference measurement signal may include a transmission port or a transmission beam.
- the transmission beam can be represented by a beam-related identification, such as by a synchronization signal resource block, or a time domain identification of the synchronization signal, or an identification of a reference signal.
- the time position of transmitting the interference measurement signal may be one or more of the foregoing time positions, which may be continuous or discontinuous; the frequency domain position of the transmission interference measurement signal may be one or more of the above frequency domain positions, which may be Continuous or discontinuous.
- the continuous or discontinuous temporal location and/or frequency domain location may be in a particular pattern.
- the mini slot is a resource unit composed of OFDM symbols of less than one slot; the mini subframe is a resource unit composed of OFDM symbols of less than one slot.
- the interference measurement resource is an OFDM symbol, it is less than or equal to the length of one subframe.
- the interference measurement resource may be included in any one of the following types of subframes: the first type of subframe is a sub-frame including a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH).
- the second type of subframe is a subframe including a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH);
- the third type of subframe includes a PDCCH and a PDSCH.
- the fourth type of subframe is a subframe including a PDCCH, a PUSCH, and a PUCCH.
- the third type subframe and the fourth type subframe may include a guarding period (GP), and the guard interval is used for switching between uplink and downlink.
- the interference measurement resource may be one or more time positions after the PDCCH, such as one or more OFDM symbols, or may be one or more time positions before the PUCCH, for example, One or more OFDM symbols.
- the third type of subframe may be referred to as a new subframe, a downlink hybrid subframe, or a self-contained subframe; the fourth type subframe may be referred to as a new subframe, an uplink hybrid subframe, or a self-contained subframe.
- the third and fourth subframes in the first row are the third type of subframe, and the third is the third type of subframe including the interference measurement resource (the portion filled with the cross-slash).
- the fourth is a third type of subframe that does not contain interference measurement resources.
- the third type of subframe is a new type of subframe dominated by DL (downlink) (or a new type of subframe dominated by DL, or a new subframe called DL center, or a self-contained downlink subframe).
- the interference measurement resource is one or more temporal locations preceding the PUCCH, such as one or more OFDM symbols.
- the third and fourth subframes in the second row are the fourth type of subframe, wherein the third is the fourth type of subframe including the interference measurement resource, and the fourth is the interference measurement resource not included.
- the fourth type of subframe is a new type of subframe dominated by UL (uplink) (or a new subframe called UL-led, or a new subframe called UL center, or a self-contained uplink subframe).
- the interference measurement resource is one or more temporal locations after the PDCCH, such as one or more OFDM symbols.
- the interference measurement may occur in the first time slot, and the data transmission occurs in the second time slot; when the resource unit is a subframe, the interference measurement may occur in the first subframe, and Data transmission occurs in the second subframe.
- the interference measurement resources used by the first base station and the second base station may be coordinated by time domain, frequency domain coordination, or code domain, so that interference measurement resources between each other are orthogonal or quasi-orthogonal, and thus Detection.
- the frequency domain coordination and the code domain coordination may be on the same time resource, so that the interference measurement resource can be pre-configured.
- the association The adjustment may be based on coordination between base station mutual notifications, or may be coordinated by OAM (operation, administration and management) pre-configuration.
- the first base station may send the information through the air interface signaling.
- the first base station may send information of the interference measurement resource to the first terminal by using air interface signaling.
- the second base station sends information about the interference measurement resource to the second terminal.
- the first base station sends information of the interference measurement signal to the first terminal and the second base station.
- the first base station may send the information of the interference measurement signal to the first terminal and the second base station at the same time, or may not send the information at the same time.
- the first base station may transmit the information of the interference measurement signal to the second base station through an interface between the two base stations.
- the first base station may send the information of the interference measurement signal to the first terminal by using air interface signaling.
- the information of the interference measurement signal may be configuration information of the interference measurement signal or the interference measurement signal.
- the configuration information may instruct the first terminal to generate a corresponding interference measurement signal according to the configuration information.
- S404 The second base station sends information of the interference measurement signal to the second terminal.
- the second base station may send information of the interference measurement signal and/or information of the interference measurement resource to the second terminal by air interface signaling.
- the first base station may send information of the interference measurement resource and/or the information of the interference measurement signal to the first terminal according to its own setting, and send information of the interference measurement resource and/or the information of the interference measurement signal to the second base station, and the sending Actions can be executed simultaneously or sequentially, and the order of execution is not specifically limited.
- the second base station may send the information of the interference measurement and/or the information of the interference measurement signal to the second terminal according to its own setting.
- steps S401 to S404 are information for configuring the interference measurement resource information and the interference measurement signal for the first terminal, and configuring the information of the interference measurement resource and the information of the interference measurement signal for the second terminal.
- the configuration manner is not limited to the above-mentioned first embodiment, and may also be as follows.
- the information of the interference measurement resource and the information of the interference measurement signal are configured by the first base station and the second base station by using the OAM, and the first base station is configured to the first terminal and configured by the second base station to the second terminal. .
- the information of the interference measurement resource and the information of the interference measurement signal are directly configured by the OAM for the first terminal and the second terminal.
- the information of the interference measurement resource and/or the information of the interference measurement signal are negotiated between the first base station and the second base station, and then the information of the interference measurement resource and/or the interference measurement signal that are negotiated by the first base station.
- the information is sent to the first terminal, and the second base station sends the information of the negotiated interference measurement resource and/or the information of the interference measurement signal to the second terminal.
- the information of the negotiation interference measurement resource and the information of the interference measurement signal may be information of the interference measurement resource sent by the first base station to the second base station and the interference measurement signal, or may be the interference measurement resource sent by the second base station to the first base station. Information and information on interference measurement signals.
- S405 The first terminal sends an interference measurement signal indicated by the information of the interference measurement signal on the interference measurement resource indicated by the information of the interference measurement resource.
- the information of the interference measurement signal (which may also be referred to as indication information or configuration information) is used to indicate which type of interference measurement signal is used for the interference measurement.
- the information of the interference measurement signal includes at least one of the following: a sequence length, a cyclic shift, a physical cell ID, and The pseudo-random sequence initial value.
- the form of the interference measurement signal is indicated by the information of the interference measurement signal.
- the interference measurement signal may specifically include the following forms: a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), and a preamble (preamble). Or a new type of signal.
- any of the above signals may be based on a sequence length, a cyclic shift, a physical cell ID, and a pseudo-random sequence initial value. At least one of the determined or configured signals.
- the information of the interference measurement signal may further include a transmission port or a transmission beam of the interference measurement signal, wherein the transmission port or the transmission beam is a transmission port or a transmission beam of the terminal.
- the information of the interference measurement signal also includes a transmission beam that interferes with the measurement signal.
- the transmission beam can be represented by a beam-related identification, such as by a synchronization signal resource block, or a time domain identification of the synchronization signal, or an identification of a reference signal.
- the interference measurement signal may be defined in advance between the first cell and the second cell, and the two cells have their own corresponding interference measurement signals, and the interference measurement signals are orthogonal to avoid erroneous monitoring of the interference measurement signals.
- the interference measurement signals corresponding to each cell may be a group (the group may also be called a set), and then the two sets of interference measurement signals are orthogonal between each other.
- the second terminal determines, according to the information of the interference measurement resource and the information of the interference measurement signal, the strength of the interference measurement signal sent by the first terminal.
- the second terminal may determine, on the resource, the interference measurement signal according to the information of the interference measurement resource, monitor the interference measurement signal after monitoring the interference measurement signal, and use the information of the interference measurement signal to determine the interference measurement signal.
- Strength or path loss may be used to determine the interference measurement signal.
- the intensity value of the interference measurement signal may be measured on one or more of the following: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ) ), Received Signal Strength Indicator (RSSI), Channel Quality Indicator (CQI), and Channel State Indicator (CSI).
- RSRP Reference Signal Received Power
- RSRQ Reference Signal Received Quality
- RSSI Received Signal Strength Indicator
- CQI Channel Quality Indicator
- CSI Channel State Indicator
- the strength of the interference measurement signal may be included in the interference measurement report, and the interference measurement report may be reported to the second base station, and the used resource for reporting may be reserved to ensure timely reporting of the interference measurement report.
- the reserved resources may be in a PUCCH/PUSCH of any subframe, such as a PUCCH/PUSCH of a third type subframe or a fourth type subframe. The reserved resources can be notified to the terminal by the corresponding base station through high layer signaling.
- the interference measurement of the second terminal may be a medium/long-term interference measurement or a short-term interference measurement.
- the duration of the interference measurement such as the number of sampling values of the interference measurement or the number of interference measurement resources, needs to be notified by the second base station through at least one of higher layer signaling, MAC layer signaling, and physical layer signaling. Two terminals.
- S407 The second terminal controls, according to the strength of the monitored interference measurement signal, the power of the second terminal to send the data signal to the second base station.
- the second base station may send, by using signaling, several sets of optional uplink transmission modes to the second terminal, where the signaling may include signaling in uplink authorization signaling or other downlink control information.
- the second base station may configure an uplink transmission mode of the second terminal, and the configuration manner may be configured by using Radio Resource Control (RRC) signaling.
- RRC Radio Resource Control
- Set or can be configured through physical layer signaling.
- the configuration can be pre-configured or dynamically configured.
- the pre-configured uplink transmission mode may be activated or deactivated by physical layer signaling in the PDCCH.
- the physical layer signaling may be signaling in uplink grant signaling or other downlink control information.
- the second base station is also configured by air interface signaling or configured by OAM.
- the power control mode of the Physical Uplink Shared CHannel is as follows:
- P CMAX,c (i) represents the maximum power
- M PUSCH,c (i) represents the number of physical resource blocks (PRBs)
- P O_PUSCH,c (j) and ⁇ c (j) are Semi-statically configured parameters
- PL c is the estimated path loss of the user equipment (User Equipment, UE)
- ⁇ TF is the incremental value of different Modulation and Coding Scheme (MCS)
- f c (i) is the power adjustment value formed by the closed loop power control of the terminal.
- P O_PUSCH,c (j) and ⁇ c (j) are semi-statically configured, and the values remain unchanged for all subframes.
- the semi-static configuration has a long configuration period and is not suitable for use in systems with flexible duplex mode.
- the uplink transmission mode is configured by the second base station to the second terminal by using the uplink authorization signaling or the PDCCH, and the configuration mode is more dynamic, and can be applied to the system adopting the flexible duplex mode. .
- the interference received by the base station in a certain uplink subframe may be the uplink interference caused by the downlink transmission of the neighboring base station, and the interference received by the other uplink subframe may be the neighboring base station.
- the uplink interference caused by the uplink transmission by the terminal may be configured for the second terminal, and the second terminal may select a corresponding uplink transmission mode according to the strength of the monitored interference measurement signal, and the uplink transmission mode considers uplink and downlink transmission in different directions.
- the resulting interference difference can avoid the impact of cross-link interference on the effective transmission of data, thereby increasing the effective transmission rate of data.
- the second base station also needs to configure a correspondence between the strength of the interference measurement signal and the uplink transmission mode for the second terminal. After the second terminal monitors the strength of the interference measurement signal, the corresponding uplink transmission mode may be selected according to the correspondence between the strength of the interference measurement signal and the uplink transmission mode.
- the correspondence between the strength of the interference measurement signal and the uplink transmission mode may be specifically: a correspondence between an intensity level of the interference measurement signal and an uplink transmission mode.
- the intensity level can be determined by the signal strength range, which is determined by the signal strength threshold. In this way, according to the strength of the monitored interference measurement signal, it can be determined which intensity level the interference measurement signal corresponds to, and then the uplink transmission mode corresponding to the interference measurement signal is determined.
- the signal strength threshold value and/or the correspondence between the strength level of the interference measurement signal and the uplink transmission mode may be configured by the base station to the terminal through higher layer signaling.
- the signal strength range [1dB, 5dB) corresponds to an intensity level of 1
- the signal strength range [5dB, 10dB) corresponds to an intensity level of 2
- the interference measurement signal strength corresponds to intensity level 2.
- the specific numerical values are merely examples, and the actual values are not limited.
- the second terminal can determine the uplink transmission mode corresponding to the intensity level 2 to control the transmission power of the data signal according to the correspondence between the strength level and the uplink transmission mode.
- the uplink transmission mode may include: multiple modulation and coding strategies of the uplink (Modulation and Coding) Scheme, MCS) and/or multiple parameter values of the transmission power control parameters.
- the transmission power control parameter may include any one or more of the following four parameters: a target power value, a path loss compensation factor, a closed loop transmission power value, and a cross link interference parameter.
- the target power value includes a cell-specific target power value and a terminal-specific target power value;
- the cross-link interference parameter is a parameter added to the PUSCH power control formula in parallel with the target power value, which is used to compensate for interference. The determination of the resulting uplink transmission power value.
- the power control formula for the introduction of a new cross-link interference parameter is:
- the cross-link interference parameter may be notified to the second terminal by the second base station by using at least one of high layer signaling, MAC layer signaling, and physical layer signaling.
- the cross-link interference parameter may be notified to the second terminal by the second base station by using high-level signaling; when the interference measurement is short-term, the cross-link interference parameter may be The second base station notifies the second terminal by using MAC layer signaling or physical layer signaling.
- the target power value may be combined into one parameter notification or separately.
- the closed-loop power value may be combined into one parameter notification or separately notified.
- the uplink transmission mode may include multiple types, and the different types of uplink transmission modes correspond to different types of power control.
- the power control includes PUSCH power control, PUCCH power control, or SRS (Sounding Reference Signal) power control.
- the transmission power of the data signals generated by using different modulation and coding strategies will be different; the transmission power control parameters are the influence factors of the transmission power, and the transmission power values are different under the constraints of different parameter values.
- 3GPP the power control mode of the Physical Uplink Shared CHannel (PUSCH).
- the selected uplink transmission mode may be some modulation/coding strategy or some parameter value of the transmission power control parameter, and the transmission power of the data signal may be determined according to the uplink transmission mode.
- the relationship between the uplink transmission mode and the strength of the interference measurement signal is an inverse correlation relationship, that is, the stronger the strength of the interference measurement signal, the lower the transmission power of the data signal determined by the uplink transmission mode and/or the selection.
- Low-order MCS to reduce interference conversely, the lower the strength of the interference measurement signal, the higher the transmission power of the data signal determined by the uplink transmission mode and/or the higher-order MCS is selected, so that the data can be improved without causing interference. Reliability and/or throughput of signal transmission.
- the first base station configures, for the first terminal, a positional relationship between the feature of the interference measurement signal and the data signal, where the location includes any one or more of a time domain, a frequency domain, and a spatial domain of the data signal.
- the relationship may be sent to the terminal by mutual negotiation between the base stations. For example, after the first base station sends the second base station to the second base station, the second base station sends the second base station to the second terminal and is then sent by the first base station to the first terminal.
- This relationship can also be configured by the OAM to the base station, which is sent to the terminal similarly to the above, or configured by the OAM to the base station and the terminal.
- the sending, by the first base station, to the second base station may be through inter-base station interface signaling, such as X2 signaling or air interface signaling.
- the second base station is further sent to the second terminal and/or the first base station and then sent to the first terminal to perform air interface signaling, which may be at least one of RRC signaling, MAC layer signaling or physical layer signaling. It can also be pre-configured by RRC signaling and activated by physical layer signaling.
- the relationship between the characteristics of the interference measurement signal and the time domain of the data signal indicates that after the first terminal transmits the interference measurement signal of a certain characteristic, corresponding to the interference measurement signal of the feature, how long after the data signal is sent.
- the relationship between the characteristics of the interference measurement signal and the frequency domain of the data signal indicates that the terminal transmits an interference signal of a certain characteristic, corresponding to the interference measurement signal of the feature, and the data signal is transmitted at what frequency domain position.
- the feature may be information that interferes with the measurement signal.
- the time domain/frequency domain may be subject to some predefined mode. The specific mode is, for example, a semi-statically scheduled time domain/frequency domain resource.
- the data signal may be transmitted in one or more subsequent subframes or time slots.
- the time domain resources such as subframes or time slots, may be continuous or discontinuous.
- the discontinuity may be semi-persistent scheduling or semi-persistent scheduling (SPS).
- the relationship between the interference measurement signal and the location of the data signal can be sent to the second terminal.
- the second terminal monitors an interference measurement signal, according to the relationship between the interference measurement signal and the position of the data signal, it can be determined at what position the first terminal transmits the data signal, so that the second terminal can be at the corresponding position.
- the power of the data signal transmitted by itself is controlled according to the uplink transmission mode determined above.
- the interference measurement signal monitored by the second terminal or the determined uplink transmission mode may be used as the power control of the terminal that is closer to the second terminal.
- the criterion for the closer distance may be that the difference between the distance parameter such as Reference Signal Receiving Power (RSRP) or Reference Signal Receiving Quality (RSRQ) is within a preset threshold range.
- RSRP Reference Signal Receiving Power
- RSRQ Reference Signal Receiving Quality
- the first terminal sends the interference measurement signal
- the second terminal monitors the strength of the interference measurement signal
- the second terminal can directly control the second terminal itself to transmit the data signal according to the measured strength of the interference measurement signal.
- the present application can measure the interference of various granularities such as frequency bands, sub-bands, and sub-frames, and control the transmission power based on the measurement result.
- the first embodiment is that the second terminal controls the power of transmitting the data signal to the second base station, that is, the terminal itself causing the interference adjusts the transmission power of the data signal, so as to adaptively adjust the terminal to receive data from the neighboring cell.
- the application further provides the second embodiment.
- the second embodiment controls the power of the data signal sent by the first base station to the first terminal. See FIG. 6, which shows a flow diagram of power control based on interference measurement, specifically including the following steps S601-S608.
- the second base station sends information about the interference measurement resource to the second terminal and the first base station.
- the first base station sends information of the interference measurement resource to the first terminal.
- the second base station sends information of the interference measurement signal to the second terminal and the first base station.
- the first base station sends information of the interference measurement signal to the first terminal.
- the second terminal sends the interference measurement signal indicated by the information of the interference measurement signal on the interference measurement resource indicated by the information of the interference measurement resource.
- the first terminal monitors the second terminal according to the information of the interference measurement resource and the information of the interference measurement signal.
- the interference measures the strength of the signal.
- the descriptions of the steps S601 to S606 in this embodiment can be referred to the S401 to S406 in the first embodiment.
- the above steps are the same as those in the corresponding step in the first embodiment, except that the action is performed.
- the main body is replaced by the first base station and the first terminal as the second base station and the second terminal.
- the second base station may send the information of the interference measurement resource and/or the information of the interference measurement signal to the second terminal according to its own setting, and send the information of the interference measurement resource and/or the information of the interference measurement signal to the first base station, and the sending Actions can be executed simultaneously or sequentially, and the order of execution is not specifically limited.
- the first base station may send the information of the interference measurement and/or the information of the interference measurement signal to the first terminal according to its own setting.
- steps S601 to S604 are information for configuring the interference measurement resource information and the interference measurement signal for the first terminal, and configuring the interference measurement resource information and the interference measurement signal for the second terminal.
- the configuration manner is not limited to the foregoing embodiment 2, and may be the following.
- the information of the interference measurement resource and the information of the interference measurement signal are configured by the first base station and the second base station by using the OAM, and the first base station is configured to the first terminal and configured by the second base station to the second terminal. .
- the information of the interference measurement resource and the information of the interference measurement signal are directly configured by the OAM for the first terminal and the second terminal.
- the information of the interference measurement resource and/or the information of the interference measurement signal are negotiated between the first base station and the second base station, and then the information of the interference measurement resource and/or the interference measurement signal that are negotiated by the first base station.
- the information is sent to the first terminal, and the second base station sends the information of the negotiated interference measurement resource and/or the information of the interference measurement signal to the second terminal.
- the information of the negotiation interference measurement resource and the information of the interference measurement signal may be information of the interference measurement resource sent by the first base station to the second base station and the interference measurement signal, or may be the interference measurement resource sent by the second base station to the first base station. Information and information on interference measurement signals.
- the first terminal sends the strength of the interference measurement signal to the first base station.
- the interference measurement signal is transmitted by the second terminal in the uplink mode, and the strength of the interference measurement signal may be at least one of RSRP, RSRQ, RSSI, CQI, and CSI, respectively, the interference measurement signal may be recorded as UL-RSRP, UL-RSRQ, UL-RSSI, UL-CSI, UL-CQI, etc.
- the UL-signal strength type recording mode can indicate which of the uplink directions is monitored by the first terminal. Type of signal strength. It should be noted that the recording method may also be referred to as an association relationship.
- the UL included in the association indicates the uplink direction, that is, the measurement result of the interference measurement signal transmitted by the second terminal.
- the first terminal may also record DL-RSRP, DL-RSRQ, DL-RSSI, DL-CSI, DL-CQI, but the DL in these associations represents the downlink direction, which is a downlink reference to the first base station.
- the measurement result of the signal It can be seen that the DL and UL can distinguish which measured signal strength is associated with which link direction or which signal is associated (ie, is the normal reference signal or the interference measurement signal).
- the interference measurement signal may also be multiple, and therefore, it is also possible to record which type of signal strength is related to a type of interference measurement signal.
- the recording method is: UL-signal type-signal strength type.
- the signal strength types include RSRP, RSRQ, RSSI, CQI, and CSI
- the signal types include DMRS, CSI-RS, SRS, and preamble
- 20 UL-signal type-signal strength type recording results can be combined. .
- the result of the recording includes: UL-SRS-RSRP, UL-SRS-RSRQ, UL-SRS-RSSI, UL-SRS-CSI, UL-SRS-CQI;
- the record results include: UL-CSI-RS-RSRP, UL-CSI-RS-RSRQ, UL -CSI-RS-RSSI, UL-CSI-RS-CSI, UL-CSI-RS-CQI;
- the record results include: UL-DMRS-RSRP, UL-DMRS-RSRQ, UL-DMRS-RSSI, UL-DMRS-CSI, UL-DMRS-CQI.
- the second terminal in the foregoing Embodiment 1 monitors the strength of the interference measurement signal sent by the first terminal
- the type of the interference measurement signal and the type of the signal strength may also be recorded in the foregoing manner.
- the first terminal may report to the first base station in the area PUCCH part of the uplink control data transmission.
- the area PUCCH part of the uplink control data transmission may be a PUCCH part of an existing subframe or a new subframe, and the new subframe may be referred to as a self-contained subframe or a hybrid subframe.
- the new subframe may include a DL control portion, a DL data portion, and a UL control portion, or the new subframe may include a DL control portion, a UL data portion, and a UL control portion.
- the first terminal can also report to the first base station in the PUSCH part.
- the PUSCH portion may be a PUSCH portion of an existing subframe or a new subframe.
- the reserved PUCCH/PUSCH is a base station notifying the terminal in advance through air interface signaling.
- the first base station controls, according to the strength of the interference measurement signal, the power of the first base station to send the data signal to the first terminal.
- the first base station may also configure a correspondence between the transmission power (or transmission power) of the data signal and the strength of the interference measurement signal, according to the correspondence, To control the transmit power of the data signal.
- the corresponding relationship is positive correlation, that is, the stronger the strength of the interference measurement signal, the higher the transmission power of the controlled data signal is, so as to reduce the received by the first terminal. Interference; conversely, the lower the strength of the interference measurement signal, the lower the transmission power of the controlled data signal, so as to ensure that the first terminal receives the data signal without interference, the power consumption of the first base station can be reduced.
- the first base station performs control of data signal transmission power using Relative Narrow Band Transmission Power (RNTP) signaling.
- RNTP Relative Narrow Band Transmission Power
- the first base station uses RNTP signaling to control the transmission power of different PRBs, and improves the transmission power of the PRB for the time domain/frequency domain resources of the data signals corresponding to the strong interference measurement signals; for the weak interference measurement signals The time domain/frequency domain resource of the corresponding data signal reduces the transmission power of the PRB.
- RNTP Relative Narrow Band Transmission Power
- the first terminal sends the interference measurement signal
- the second terminal monitors the interference measurement signal and adaptively adjusts the power.
- the second terminal sends the interference measurement signal
- the interference measurement signal is monitored, and is fed back to the first base station to perform a power scheduling adjustment such as power adjustment by the first base station. It can be seen that the foregoing two embodiments are mainly performed on the terminal side, or the first terminal.
- the application also provides the following embodiments. The embodiment is mainly applied to the base station side, and the base station sends and monitors the interference measurement signal, and according to the monitoring result, Power Control.
- the first base station sends an interference measurement signal, which is measured by the second base station, and correspondingly is performed on the base station side. Adjustments such as scheduling methods.
- FIG. 7 shows a flow diagram of power control based on interference measurement, specifically including the following steps S701-S704.
- the first base station sends information of the interference measurement resource and information of the interference measurement signal to the second base station.
- the first base station may send the foregoing information to the second base station simultaneously or at different times.
- the information of the interference measurement resource of the second base station and the information of the interference measurement signal may not be sent by the first base station, and may be configured by using OAM, that is, configuring the first base station and the second base station by using OAM.
- OAM that is, configuring the first base station and the second base station by using OAM.
- the information of the interference measurement resource and/or the information of the interference measurement signal may not be sent by the first base station, and may be configured by using OAM, that is, configuring the first base station and the second base station by using OAM.
- the second base station After receiving the foregoing interference measurement resources, the second base station does not configure data transmission or data reception on the specified resources, that is, blanks the resources to ensure that the interference is correctly measured.
- the first base station sends an interference measurement signal indicated by the information of the interference measurement signal on the interference measurement resource indicated by the information of the interference measurement resource.
- the interference measurement signal of the first base station is sent to the second base station.
- the second base station monitors the strength of the interference measurement signal sent by the first base station according to the information of the interference measurement resource and the information of the interference measurement signal.
- the second base station configures, according to the strength of the interference measurement signal, the power of the second terminal to send the data signal to the second base station.
- the power of the data signal sent by the second terminal to the second base station is configured, and the power parameter value and/or the MCS of the data signal sent by the second terminal to the second base station is configured, so that the second terminal uses the
- the configured power parameter value determines the uplink transmission power and/or uses the configured MCS for uplink transmission. It should be noted that if only the interference measurement method is performed, the above steps S703 and S704 may not be necessary steps.
- the interference measurement can be implemented by the base station, and the terminal is processed correspondingly according to the measured interference strength, for example, the power of the data signal sent to the base station is controlled, and no large interference is added to the terminal. Measuring the burden.
- the second base station may further transmit the strength of the interference measurement signal to the first base station. Therefore, the first base station can perform corresponding processing, for example, making power adjustment of the downlink transmission.
- the first base station may further send indication information of the interference measurement resource and/or indication information of the interference measurement signal to the first terminal, so that after receiving the indication information of the interference measurement resource, the first terminal is notified by the indication information.
- the resources are used for interference measurement. There is no data from the first base station to schedule the first terminal to perform downlink transmission. Therefore, the first terminal can perform corresponding data operations such as rate matching or puncturing of the received data.
- the second base station may further send the indication information of the interference measurement resource and/or the information of the interference measurement signal to the second terminal, so that after receiving the indication information of the interference measurement resource, the second terminal is notified by the indication information.
- the resource is used for interference measurement.
- the second terminal can perform corresponding data operations such as rate matching or puncturing of the uplink transmission data.
- first base station in the foregoing Embodiment 3 may be replaced by the second base station, and the second base station may be replaced with the first base station.
- FIG. 8 is a schematic structural diagram of a first terminal provided by the present application, including: a bus, a receiver 801, Transmitter 802, processor 803, and memory 804.
- the bus, receiver 801, transmitter 802, processor 803, and memory 804 are connected to one another via a bus. among them:
- the bus can include a path for communicating information between the various components of the first terminal.
- the receiver 801 is configured to receive indication information of the interference measurement resource and/or indication information of the interference measurement signal, where the indication information of the interference measurement resource includes at least a time domain location, a frequency domain location, and a spatial domain location of the interference measurement signal transmission. One.
- the receiver 801 is further configured to perform other data receiving operations related to the first terminal in the first embodiment.
- the transmitter 802 is configured to send, according to the interference measurement resource indicated by the indication information of the interference measurement resource, an interference measurement signal indicated by the indication information of the interference measurement signal, where the interference measurement signal is used to measure the link between the different directions. Signal of interference.
- the transmitter 802 can also be configured to perform other data transmission actions described above in connection with the first terminal.
- the processor 803 can coordinate the operation of the receiver 801 and the transmitter 802.
- the program for executing the technical solution of the present application is stored in the memory 804, and an operating system and other data can also be saved.
- FIG. 9 is a schematic structural diagram of a second terminal provided by the present application, including: a bus, a receiver 901, a transmitter 902, a processor 903, and a memory 904.
- the bus, receiver 901, transmitter 902, processor 903, and memory 904 are connected to one another via a bus.
- the bus can include a path for communicating information between the various components of the second terminal.
- the receiver 901 is configured to perform the data receiving action related to the second terminal in the first embodiment.
- the transmitter 902 is configured to perform the data sending action related to the second terminal in the first embodiment.
- the processor 903 is configured to measure, according to the information of the interference measurement resource and the information of the interference measurement signal, the interference measurement signal transmitted by the other terminal, to obtain the strength of the interference measurement signal, where the interference measurement signal is used to measure the link in different directions. a signal of interference between the downlink direction between the other terminal and the first network device and an uplink direction between the terminal and the second network device; and according to the strength of the interference measurement signal, Controlling, by the terminal, the power of the data signal sent to the second network device.
- the processor 903 is further configured to perform other data processing actions related to the second terminal in the first embodiment.
- the program for executing the technical solution of the present application is stored in the memory 904, and an operating system and other data can also be saved.
- FIG. 10 is a schematic diagram showing another structure of the first terminal provided by the present application, including: a bus, a receiver 1001, a transmitter 1002, a processor 1003, and a memory 1004.
- the bus, the receiver 1001, the transmitter 1002, the processor 1003, and the memory 1004 are connected to each other through a bus.
- the bus can include a path for communicating information between the various components of the first terminal.
- the receiver 1001 is configured to perform the data receiving action related to the second terminal in the second embodiment.
- the transmitter 1002 is configured to perform the data sending action related to the second terminal in the foregoing Embodiment 2.
- the processor 1003 is configured to measure, according to the information of the interference measurement resource and the information of the interference measurement signal, the interference measurement signal transmitted by the other terminal, to obtain the strength of the interference measurement signal, where the interference measurement signal is used to measure the link in different directions.
- the signal of the interference, the different direction includes a downlink direction between the other terminal and the first network device, and an uplink direction between the terminal and the second network device.
- a program for executing the technical solution of the present application is stored in the memory 1004, and an operating system and other data may also be stored.
- FIG. 11 is a schematic structural diagram of a first base station provided by the present application, including: a bus, a receiver 1101, a transmitter 1102, a processor 1103, and a memory 1104.
- the bus, the receiver 1101, the transmitter 1102, the processor 1103, and the memory 1104 are connected to each other through a bus.
- the bus can include a path for communicating information between various components of the first base station.
- the receiver 1101 is configured to perform the data receiving action related to the first base station in the foregoing Embodiment 3.
- the transmitter 1102 is configured to send an interference measurement signal to the second base station on the interference measurement resource; wherein the interference measurement signal is a signal used to measure interference between links in different directions.
- the transmitter 1002 can also perform the data sending action related to the first base station in the foregoing Embodiment 3.
- the processor 1103 can coordinate the operation of the receiver 1101 and the transmitter 1102.
- the memory 1104 stores a program for executing the technical solution of the present application, and may also store an operating system and other data.
- FIG. 12 is a schematic structural diagram of a second base station provided by the present application, including: a bus, a receiver 1201, a transmitter 1202, a processor 1203, and a memory 1204.
- the bus, the receiver 1201, the transmitter 1202, the processor 1203, and the memory 1204 are connected to each other through a bus.
- the bus can include a path for communicating information between various components of the second base station.
- the receiver 1201 is configured to perform the data receiving action related to the second base station in the foregoing Embodiment 3.
- the transmitter 1202 is configured to perform the data sending action related to the second base station in the foregoing Embodiment 3.
- the processor 1203 is configured to measure the interference measurement signal sent by the first base station according to the information of the interference measurement resource and the information of the interference measurement signal, to obtain the strength of the interference measurement signal.
- the program for executing the technical solution of the present application is stored in the memory 1204, and an operating system and other data can also be saved.
- the first base station and the second base station may be interchanged in the full text, and the first terminal and the second terminal may be interchanged. Not subject to a specific name.
- the technical solutions provided by the embodiments of the present application can be applied to various communication systems, such as current 2G, 3G, 4G communication systems, and future evolution networks, such as 5G communication systems.
- 5G communication systems such as Long Term Evolution (LTE) systems, 3GPP related cellular systems, etc., and other such communication systems.
- LTE Long Term Evolution
- 3GPP related cellular systems such as 3GPP
- UDN 5G Ultra Dense Network
- the 5G standard may include Machine to Machine (M2M), D2M, Macro Micro Communication, Enhanced Mobile Broadband (eMBB), ultra high reliability and ultra low latency communication ( Ultra Reliable & Low Latency Communication (uRLLC) and Massive Machine Type Communication (mMTC) scenarios, which may include, but are not limited to, communication scenarios between base stations and base stations, base stations and terminals The communication scenario between the terminal, the communication scenario between the terminal and the terminal, and the like.
- the technical solution provided by the embodiment of the present application can also be applied to the communication between the base station and the terminal in the 5G communication system, or the communication between the base station and the base station, and the communication between the terminal and the terminal.
- the first base station and the second base station may be, but are not limited to, a base station, a small cell base station, a new radio eNB, or a transmission point (TRP), which apply 5G technology.
- Base station Alternatively, in the application scenario of the WLAN, the first base station and the second base station may be replaced by a first wireless access node (Access Point, AP) and a second wireless access node. In other application scenarios, the first base station and the second base station may be replaced with other types of devices.
- AP Access Point
- the first base station and the second base station may be replaced with other types of devices.
- the base station can be a relay station, an access point or a transmission point, and the like.
- the base station may be a Global System for Mobile Communication (GSM) or a Base Transceiver Station (BTS) in a Code Division Multiple Access (CDMA) network, or may be a broadband code division.
- GSM Global System for Mobile Communication
- BTS Base Transceiver Station
- CDMA Code Division Multiple Access
- the NB (NodeB) in the Wideband Code Division Multiple Access (WCDMA) may also be an eNB or an eNodeB (evolutional NodeB) in LTE.
- the base station may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario.
- the base station may also be a network device in a future 5G network (for example, gNB) or a network device in a future evolved Public Land Mobile Network (PLMN); it may also be a wearable device or an in-vehicle device.
- gNB future 5G network
- the base station may include an indoor baseband processing unit (BBU) and a remote radio unit (RRU), and the RRU and the antenna feeder system (ie, an antenna) are connected, and the BBU and the RRU may be used as needed. It should be noted that the base station may also adopt other general hardware architectures in a specific implementation process.
- BBU baseband processing unit
- RRU remote radio unit
- the base station may also adopt other general hardware architectures in a specific implementation process.
- the terminal may be a User Equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a terminal, a wireless communication device, a UE proxy, or a UE. Device, etc.
- the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
- the type of the neighboring cell may be a macro cell, a micro cell, a small cell, etc., and the types of the neighboring cells may be the same or different.
- the network type of the cell may also be various. For example, it may be an Ultra Dense Network (UDN). The number of cells constructed by using such a network type is larger, and the distance between the cells is closer, so that interference occurs. More and the interference is stronger. In a UDN scenario, more severe interference will occur between adjacent small cells, not just between adjacent cell clusters.
- UDN Ultra Dense Network
- all air interface signaling that is sent may be at least one of RRC signaling, MAC layer signaling, or physical layer signaling. It can also be pre-configured by RRC signaling and activated by physical layer signaling.
- the present application is not limited to application in a low frequency system, and may also be a high frequency millimeter wave system, and thus the above-mentioned interference measurement signal, interference measurement resource and/or intensity report of power control and/or interference measurement signal
- the information may be beamforming or corresponding to a certain beam identification, that is, all relevant interference measurement signals, interference measurement resources and/or strength reports of power control and/or interference measurement signals may be further carried.
- the beam identifier may be a beam index or an identification of an identification/reference signal of a corresponding synchronization signal on the beam.
- the identification of the identification/reference signal of the synchronization signal may be a time identification associated with the synchronization signal/reference signal, such as a synchronization signal block time index.
- the interference measurement signal described in this application may also be referred to as any one of an interference detection signal, an interference sensing signal, an interference monitoring signal, and an interference measurement signal.
- the interference measurement resource described in this patent may also be referred to as any one of an interference detection resource, an interference sensing resource, an interference monitoring resource, and an interference measurement resource.
- the intensity of the interference measurement signal described in the present application may also be referred to as the reception power of the interference measurement signal or the measurement result of the interference measurement signal.
- the first base station and the second base station are exemplified in the present patent, but are not limited to only two base stations, and may actually be multiple base stations. Therefore, based on the interference measurement signal sent by the first terminal to which the first base station belongs.
- the second base station may configure the second terminal to perform monitoring, and the third base station may configure the third terminal to perform monitoring, and so on.
- the first base station may configure the first terminal to perform monitoring, and the third base station may configure the third terminal to perform monitoring, and so on.
- the first base station transmits the interference measurement signal
- the second base station, the third base station, and the like can both monitor.
- Downlink Information transmission direction from base station to terminal.
- Uplink The direction of information transmission from the terminal to the base station.
- Special subframe A conversion subframe located between a downlink subframe and an uplink subframe.
- Static configuration Usually configured through pre-configuration or through network planning.
- Dynamic configuration real-time or high-frequency configuration.
- Semi-static configuration A configuration between a static configuration and a dynamic configuration.
- the configuration is performed at a lower frequency.
- the configuration is configured with a longer period of configuration or a longer configuration.
- Resource particle The resource unit that is divided.
- New subframe/slot Also known as self-contained subframe/slot, new radio subframe/slot, bidirectional subframe/slot or hybrid subframe/slot.
- the self-contained subframe/slot may be included as follows, and the self-contained subframe may include a self-contained downlink subframe and a self-contained uplink subframe.
- the self-contained downlink subframe may include a downlink control channel, a downlink data channel, and an uplink control channel.
- the self-contained uplink subframe may include transmission of a downlink control channel, an uplink data channel, and an uplink control channel.
- the new subframe/slot can be a new type of mini subframe/time slot.
- Resource Element corresponds to one subcarrier in frequency, and corresponds to one OFDM symbol in the time domain.
- Subband consists of several subcarriers.
- Time slot 7 OFDM symbols correspond to one time slot.
- Subframe One subframe includes two slots.
- Radio frame One radio frame includes 10 subframes.
- Superframe One superframe includes 51 multiframes, and one multiframe includes 26 subframes.
Abstract
Description
Claims (89)
- 一种干扰测量方法,其特征在于,包括:第一终端在干扰测量资源上发送干扰测量信号;其中干扰测量信号为用于测量不同方向链路之间的干扰的信号,所述不同方向包括第一终端与第一网络设备之间的下行方向及第二终端与第二网络设备之间的上行方向;第二终端根据所述干扰测量资源的信息及所述干扰测量信号的信息,测量所述干扰测量信号,以得到所述干扰测量信号的强度;第二终端根据所述干扰测量信号的强度,控制第二终端向第二网络设备发送数据信号的功率。
- 根据权利要求1所述的干扰测量方法,其特征在于,所述第一终端在干扰测量资源上发送干扰测量信号,包括:第一终端接收干扰测量资源的指示信息和/或干扰测量信号的指示信息;其中干扰测量资源的指示信息包括干扰测量信号传输的时域位置、频域位置以及空间域位置中的至少一项;第一终端在干扰测量资源的指示信息所指示的干扰测量资源上,发送干扰测量信号的指示信息所指示的干扰测量信号。
- 根据权利要求2所述的干扰测量方法,其特征在于,所述第一终端接收干扰测量资源的指示信息和/或干扰测量信号的指示信息,包括:第一终端接收第一网络设备或第二网络设备发送的干扰测量资源的指示信息;第一终端接收第一网络设备或第二网络设备发送的干扰测量信号的指示信息。
- 根据权利要求2所述的干扰测量方法,其特征在于,所述第一终端接收干扰测量资源的指示信息和/或干扰测量信号的指示信息,包括:通过OAM为所述第一终端配置干扰测量资源的指示信息和/或干扰测量信号的指示信息。
- 根据权利要求2所述的干扰测量方法,其特征在于,所述时域位置包括:子帧、时隙、迷你子帧、迷你时隙、OFDM符号或少于一个OFDM符号的资源单位。
- 根据权利要求2所述的干扰测量方法,其特征在于,所述频域位置包括:频带、子带、频域偏移量、控制信道元素或物理资源块。
- 根据权利要求2所述的干扰测量方法,其特征在于,所述空间域位置包括:传输端口或传输波束的信息,其中所述传输波束的信息为波束相关的标识。
- 根据权利要求2所述的干扰测量方法,其特征在于;所述时域位置位于以下任意一种子帧中:包括PDCCH、PDSCH及PUCCH的子帧,包括PDCCH、PUSCH及PUCCH的子帧,包括PDCCH及PDSCH的子帧,包括PUCCH及PUSCH的子帧。
- 根据权利要求8所述的干扰测量方法,其特征在于,若所述时域位置位于包括PDCCH、PUSCH及PUCCH的子帧中,则干扰测量资源为 PDCCH之后的一个或多个OFDM符号;若所述时域位置位于包括PDCCH、PDSCH及PUCCH的子帧中,则干扰测量资源为PUCCH之前的一个或多个OFDM符号。
- 根据权利要求2所述的干扰测量方法,其特征在于,所述干扰测量信号为:解调参考信号、信道状态信息参考信号、响应参考信号、前导码或新型信号。
- 根据权利要求10所述的干扰测量方法,其特征在于,所述干扰测量信号的指示信息包括以下几项中的至少一项:序列长度、循环移位、物理小区标识及伪随机序列的初始值。
- 根据权利要求10或11所述的干扰测量方法,其特征在于,所述干扰测量信号的指示信息还包括:干扰测量信号的传输端口或传输波束,其中所述传输波束为波束相关的标识。
- 根据权利要求7或12所述的干扰测量方法,其特征在于,所述波束相关的标识包括:同步信号资源块、同步信号的时域标识或者参考信号的标识。
- 根据权利要求1所述的干扰测量方法,其特征在于,所述第二终端根据所述干扰测量信号的强度,控制第二终端向第二网络设备发送数据信号的功率,包括:第二终端接收干扰测量信号的特征与数据信号的位置之间的关系,其中所述位置包括时域、频域及空间域中的至少一项;第二终端确定第一终端发送的干扰测量信号的特征,并根据所述关系,确定所述第一终端发送的干扰测量信号对应的数据信号的位置;第二终端根据所述干扰测量信号的强度,控制第二终端在确定出的位置上控制数据信号的发送功率。
- 根据权利要求14所述的干扰测量方法,其特征在于,所述第二终端接收干扰测量信号的特征与数据信号的位置之间的关系,包括:第二终端接收第一网络设备或第二网络设备发送的干扰测量信号的特征与数据信号的位置之间的关系。
- 根据权利要求14所述的干扰测量方法,其特征在于,所述第二终端接收干扰测量信号的特征与数据信号的位置之间的关系,包括:通过OAM为所述第二终端配置干扰测量信号的特征与数据信号的位置之间的关系。
- 根据权利要求2或14所述的干扰测量方法,其特征在于,所述干扰测量资源的指示信息、所述干扰测量信号的指示信息以及所述干扰测量信号的特征与数据信号的位置之间的关系中的任何一项通过RRC信令、MAC层信令或物理层信令中的至少一项发送。
- 根据权利要求2或14所述的干扰测量方法,其特征在于,所述干扰测量资源的指示信息、所述干扰测量信号的指示信息以及所述干扰测量信号的特征与数据信号的位置之间的关系中的任何一项通过RRC信令预先配置,由物理层信令激活或去激活。
- 根据权利要求1所述的干扰测量方法,其特征在于,第一终端在干扰测量资源上 发送干扰测量信号时,所述干扰测量资源和/或所述干扰测量信号时域正交、频域正交或码域正交。
- 根据权利要求1所述的基于干扰测量的功率控制方法,其特征在于,第二终端测量得到的所述干扰测量信号的强度包括以下几项中的任意一项或多项:参考信号接收功率、参考信号接收质量、接收信号强度指示、信道质量指示及信道状态指示。
- 根据权利要求1所述的干扰测量方法,其特征在于,所述第二终端根据所述干扰测量信号的强度,控制第二终端向第二网络设备发送数据信号的功率,包括:第二终端根据干扰测量信号的强度与上行链路的调制编码策略之间的对应关系,确定向第二网络设备的上行调制编码策略;或者,第二终端根据干扰测量信号的强度与传输功率控制参数之间的对应关系,确定向第二网络设备的上行传输功率。
- 根据权利要求21所述的干扰测量方法,其特征在于,还包括:第二终端接收第二网络设备发送的信令;所述信令中包括:干扰测量信号的强度与上行链路的调制编码策略之间的对应关系和/或所述干扰测量信号的强度与传输功率控制参数之间的对应关系。
- 根据权利要求22所述的干扰测量方法,其特征在于,所述信令为无线资源控制信令,MAC层信令或物理层信令中的至少一项。
- 根据权利要求23所述的干扰测量方法,其特征在于,所述物理层信令为上行授权信令或下行控制信息中的信令。
- 根据权利要求21所述的干扰测量方法,其特征在于,所述传输功率控制参数包括以下几项中的任意一项或多项:目标功率值、路损补偿因子、闭环传输功率值及交叉链路干扰参数。
- 根据权利要求25所述的干扰测量方法,其特征在于,当干扰测量是中期或长期时,所述交叉链路干扰参数由所述第二网络设备通过高层信令发送给第二终端;当干扰测量是短期时,所述交叉链路干扰参数由所述第二网络设备通过MAC层信令或物理层信令发送给第二终端。
- 根据权利要求21所述的干扰测量方法,其特征在于,所述干扰测量信号的强度与上行链路的调制编码策略之间的对应关系,包括:所述干扰测量信号的强度级别与上行链路的调制编码策略之间的对应关系。
- 根据权利要求21所述的干扰测量方法,其特征在于,所述干扰测量信号的强度与传输功率控制参数之间的对应关系,包括:所述干扰测量信号的强度级别与传输功率控制参数之间的对应关系。
- 根据权利要求27或28所述的干扰测量方法,其特征在于,所述强度级别由信号强度门限值确定。
- 一种干扰测量方法,其特征在于,包括:第二终端在干扰测量资源上发送干扰测量信号;其中干扰测量信号为用于测量不同方向链路之间的干扰的信号,所述不同方向包括第一终端与第一网络设备之间的下行方向及第二终端与第二网络设备之间的上行方向;第一终端根据所述干扰测量资源的信息及所述干扰测量信号的信息,测量所述干扰测量信号,以得到所述干扰测量信号的强度。
- 根据权利要求30所述的干扰测量方法,其特征在于,还包括:第一终端将所述干扰测量信号的强度发送至第一网络设备。
- 根据权利要求30所述的干扰测量方法,其特征在于,还包括:第一网络设备根据所述干扰测量信号的强度,控制第一网络设备向第一终端发送数据信号的功率。
- 根据权利要求30所述的干扰测量方法,其特征在于,第一终端测量得到的所述干扰测量信号的强度的类型包括以下几项中的任意一项或多项:参考信号接收功率、参考信号接收质量、接收信号强度指示、信道质量指示及信道状态指示。
- 根据权利要求33所述的干扰测量方法,其特征在于,还包括:第一终端建立所述干扰测量信号的强度的类型与上行链路方向的关联关系。
- 根据权利要求34所述的干扰测量方法,其特征在于,还包括:第一终端将所述干扰测量信号的强度的类型与上行链路方向的关联关系发送至第一网络设备。
- 根据权利要求35所述的干扰测量方法,其特征在于,所述第一终端将所述干扰测量信号的强度的类型与上行链路方向的关联关系发送至第一网络设备,包括:所述第一终端通过以下两种资源中的任意一种资源,将所述干扰测量信号的强度的类型与上行链路方向的关联关系发送至第一网络设备;其中,资源包括:包含PDCCH、PDSCH以及PUCCH的子帧中位于PUCCH的被预留的资源、包含PDCCH、PUSCH以及PUCCH的子帧中位于PUSCH或PUCCH的被预留的资源。
- 根据权利要求31所述的干扰测量方法,其特征在于,所述第一终端将所述干扰测量信号的强度发送至第一网络设备,包括:所述第一终端通过以下两种资源中的任意一种资源,将所述干扰测量信号的强度发送至第一网络设备;其中,资源包括:包含PDCCH、PDSCH以及PUCCH的子帧中位于PUCCH的被预留的资源、包含PDCCH、PUSCH以及PUCCH的子帧中位于PUSCH或PUCCH的被预留的资源。
- 根据权利要求36或37所述的干扰测量方法,其特征在于,所述被预留的资源包含在由第一网络设备发送的RRC信令,MAC层信令及物理层信令中的至少一种信令中。
- 一种干扰测量方法,其特征在于,包括:第一网络设备在干扰测量资源上向第二网络设备发送干扰测量信号;其中干扰测量信号为用于测量不同方向链路之间的干扰的信号;第二网络设备根据所述干扰测量资源的信息及所述干扰测量信号的信息,测量所述干扰测量信号,以得到所述干扰测量信号的强度。
- 根据权利要求39所述的干扰测量方法,其特征在于,还包括:第二网络设备向第一网络设备发送所述干扰测量信号的强度。
- 根据权利要求39所述的干扰测量方法,其特征在于,还包括:第一网络设备向第一终端发送所述干扰测量资源的指示信息和/或干扰测量信号的指示信息,以使第一终端依据所述指示信息进行接收数据的速率匹配或打孔的数据操作。
- 根据权利要求39所述的干扰测量方法,其特征在于,还包括:第二网络设备向第二终端发送所述干扰测量资源的指示信息和/或干扰测量信号的指示信息,以使第二终端依据所述指示信息进行上行传输数据的速率匹配或打孔的数据操作。
- 根据权利要求41或42所述的干扰测量方法,其特征在于,所述干扰测量资源的指示信息和/或所述干扰测量信号的指示信息通过RRC信令,MAC层信令以及物理层信令中的至少一种进行发送。
- 一种终端,其特征在于,包括:接收器,用于接收干扰测量资源的指示信息和/或干扰测量信号的指示信息;其中干扰测量资源的指示信息包括干扰测量信号传输的时域位置、频域位置以及空间域位置中的至少一项;发射器,用于在干扰测量资源的指示信息所指示的干扰测量资源上,发送干扰测量信号的指示信息所指示的干扰测量信号;其中干扰测量信号为用于测量不同方向链路之间的干扰的信号。
- 根据权利要求44所述的终端,其特征在于,接收器用于接收干扰测量资源的指示信息和/或干扰测量信号的指示信息,包括:接收器,具体用于接收第一网络设备或第二网络设备发送的干扰测量资源的指示信息;以及接收第一网络设备或第二网络设备发送的干扰测量信号的指示信息。
- 根据权利要求44所述的终端,其特征在于,接收器用于接收干扰测量资源的指示信息和/或干扰测量信号的指示信息,包括:接收器,具体用于接收通过OAM为所述第一终端配置干扰测量资源的指示信息和/或干扰测量信号的指示信息。
- 根据权利要求44所述的终端,其特征在于,所述时域位置包括:子帧、时隙、迷你子帧、迷你时隙、OFDM符号或少于一个OFDM符号的资源单位。
- 根据权利要求44所述的终端,其特征在于,所述频域位置包括:频带、子带、频域偏移量、控制信道元素或物理资源块。
- 根据权利要求44所述的终端,其特征在于,所述空间域位置包括:传输端口或传输波束的信息,其中所述传输波束的信息为波束相关的标识。
- 根据权利要求44所述的终端,其特征在于,所述时域位置位于以下任意一种子帧中:包括PDCCH、PDSCH及PUCCH的子帧,包括PDCCH、PUSCH及PUCCH的子帧, 包括PDCCH及PDSCH的子帧,包括PUCCH及PUSCH的子帧。
- 根据权利要求50所述的终端,其特征在于,若所述时域位置位于包括PDCCH、PUSCH及PUCCH的子帧中,则干扰测量资源为PDCCH之后的一个或多个OFDM符号;若所述时域位置位于包括PDCCH、PDSCH及PUCCH的子帧中,则干扰测量资源为PUCCH之前的一个或多个OFDM符号。
- 根据权利要求44所述的终端,其特征在于,所述干扰测量信号为:解调参考信号、信道状态信息参考信号、响应参考信号、前导码或新型信号。
- 根据权利要求52所述的终端,其特征在于,所述干扰测量信号的指示信息包括以下几项中的至少一项:序列长度、循环移位、物理小区标识及伪随机序列的初始值。
- 根据权利要求52或53所述的终端,其特征在于,所述干扰测量信号的指示信息还包括:干扰测量信号的传输端口或传输波束,其中所述传输波束为波束相关的标识。
- 根据权利要求49或54所述的终端,其特征在于,所述波束相关的标识包括:同步信号资源块、同步信号的时域标识或者参考信号的标识。
- 根据权利要求44所述的终端,其特征在于,接收器用于接收干扰测量资源的指示信息和/或干扰测量信号的指示信息,包括:接收器,具体用于接收RRC信令、MAC层信令或物理层信令中的至少一项,其中所述信令中包含所述干扰测量资源的指示信息和/或所述干扰测量信号的指示信息。
- 根据权利要求44所述的终端,其特征在于,接收器用于接收干扰测量资源的指示信息和/或干扰测量信号的指示信息,包括:接收器,具体用于接收RRC信令,所述RRC信令用于预先配置所述干扰测量资源的指示信息和/或所述干扰测量信号的指示信息;以及用于接收物理层信令,所述物理层信令用于激活或去激活预先配置的所述干扰测量资源的指示信息和/或所述干扰测量信号的指示信息。
- 根据权利要求44所述的终端,其特征在于,所述发射器在干扰测量资源上发送干扰测量信号时,所述干扰测量资源和/或所述干扰测量信号时域正交、频域正交或码域正交。
- 一种终端,其特征在于,包括:处理器,用于根据干扰测量资源的信息及干扰测量信号的信息,测量其他终端发射的干扰测量信号,以得到所述干扰测量信号的强度,其中干扰测量信号为用于测量不同方向链路之间的干扰的信号,所述不同方向包括所述其他终端与第一网络设备之间的下行方向及所述终端与第二网络设备之间的上行方向;以及根据所述干扰测量信号的强度,控制所述终端向第二网络设备发送数据信号的功率。
- 根据权利要求59所述的终端,其特征在于,还包括:接收器,用于接收干扰测量信号的特征与数据信号的位置之间的关系,其中所述位置包括时域、频域及空间域中的至少一项;则处理器用于根据所述干扰测量信号的强度,控制所述终端向第二网络设备发送数据 信号的功率,包括:处理器,具体用于确定第一终端发送的干扰测量信号的特征,并根据所述关系,确定所述第一终端发送的干扰测量信号对应的数据信号的位置;以及根据所述干扰测量信号的强度,控制第二终端在确定出的位置上控制数据信号的发送功率。
- 根据权利要求60所述的终端,其特征在于,接收器用于接收干扰测量信号的特征与数据信号的位置之间的关系,包括:接收器,具体用于接收第一网络设备或第二网络设备发送的干扰测量信号的特征与数据信号的位置之间的关系。
- 根据权利要求60所述的终端,其特征在于,接收器用于接收干扰测量信号的特征与数据信号的位置之间的关系,包括:接收器,具体用于接收通过OAM为所述第二终端配置干扰测量信号的特征与数据信号的位置之间的关系。
- 根据权利要求60所述的终端,其特征在于,接收器用于接收干扰测量信号的特征与数据信号的位置之间的关系,包括:接收器,具体用于接收RRC信令、MAC层信令或物理层信令中的至少一项,所述信令中包括干扰测量信号的特征与数据信号的位置之间的关系。
- 根据权利要求60所述的终端,其特征在于,接收器用于接收干扰测量信号的特征与数据信号的位置之间的关系,包括:接收器,具体用于接收RRC信令,所述RRC信令用于预先配置干扰测量信号的特征与数据信号的位置之间的关系;以及用于接收物理层信令,所述物理层信令用于激活或去激活预先配置的所述干扰测量信号的特征与数据信号的位置之间的关系。
- 根据权利要求59所述的终端,其特征在于,处理器测量得到的所述干扰测量信号的强度包括以下几项中的任意一项或多项:参考信号接收功率、参考信号接收质量、接收信号强度指示、信道质量指示及信道状态指示。
- 根据权利要求59所述的终端,其特征在于,处理器用于根据所述干扰测量信号的强度,控制所述终端向第二网络设备发送数据信号的功率,包括:处理器,具体用于根据干扰测量信号的强度与上行链路的调制编码策略之间的对应关系,确定向第二网络设备的上行调制编码策略;或者,根据干扰测量信号的强度与传输功率控制参数之间的对应关系,确定向第二网络设备的上行传输功率。
- 根据权利要求66所述的终端,其特征在于,还包括:接收器,用于接收第二网络设备发送的信令;所述信令中包括:干扰测量信号的强度与上行链路的调制编码策略之间的对应关系和/或所述干扰测量信号的强度与传输功率控制参数之间的对应关系。
- 根据权利要求67所述的终端,其特征在于,所述信令为无线资源控制信令,MAC层信令或物理层信令中的至少一项。
- 根据权利要求68所述的终端,其特征在于,所述物理层信令为上行授权信令或下行控制信息中的信令。
- 根据权利要求66所述的终端,其特征在于,所述传输功率控制参数包括以下几项中的任意一项或多项:目标功率值、路损补偿因子、闭环传输功率值及交叉链路干扰参数。
- 根据权利要求70所述的终端,其特征在于,接收器,用于当干扰测量是中期或长期时,接收由所述第二网络设备通过高层信令发送给第二终端的交叉链路干扰参数;以及当干扰测量是短期时,接收由所述第二网络设备通过MAC层信令或物理层信令发送给第二终端的交叉链路干扰参数。
- 根据权利要求66所述的终端,其特征在于,所述干扰测量信号的强度与上行链路的调制编码策略之间的对应关系,包括:所述干扰测量信号的强度级别与上行链路的调制编码策略之间的对应关系。
- 根据权利要求66所述的终端,其特征在于,所述干扰测量信号的强度与传输功率控制参数之间的对应关系,包括:所述干扰测量信号的强度级别与传输功率控制参数之间的对应关系。
- 根据权利要求72或73所述的终端,其特征在于,所述强度级别由信号强度门限值确定。
- 一种终端,其特征在于,包括:处理器,用于根据干扰测量资源的信息及干扰测量信号的信息,测量其他终端发射的干扰测量信号,以得到所述干扰测量信号的强度,其中干扰测量信号为用于测量不同方向链路之间的干扰的信号,所述不同方向包括所述其他终端与第一网络设备之间的下行方向及所述终端与第二网络设备之间的上行方向。
- 根据权利要求75所述的终端,其特征在于,还包括:发射器:用于所述干扰测量信号的强度发送至第一网络设备。
- 根据权利要求75所述的终端,其特征在于,处理器测量得到的所述干扰测量信号的强度的类型包括以下几项中的任意一项或多项:参考信号接收功率、参考信号接收质量、接收信号强度指示、信道质量指示及信道状态指示。
- 根据权利要求75所述的终端,其特征在于,处理器,还用于建立所述干扰测量信号的强度的类型与上行链路方向的关联关系。
- 根据权利要求78所述的终端,其特征在于,还包括:发射器:用于将所述干扰测量信号的强度的类型与上行链路方向的关联关系发送至第一网络设备。
- 根据权利要求79所述的终端,其特征在于,发射器用于将所述干扰测量信号的强度的类型与上行链路方向的关联关系发送至第一网络设备,包括:发射器,具体用于通过以下两种资源中的任意一种资源,将所述干扰测量信号的强度的类型与上行链路方向的关联关系发送至第一网络设备;其中,资源包括:包含PDCCH、PDSCH以及PUCCH的子帧中位于PUCCH的被预留的资源、包含PDCCH、PUSCH以及PUCCH的子帧中位于PUSCH或PUCCH的被预留的资源。
- 根据权利要求76所述的终端,其特征在于,发射器用于所述干扰测量信号的强度 发送至第一网络设备,包括:发射器,具体用于通过以下两种资源中的任意一种资源,将所述干扰测量信号的强度发送至第一网络设备;其中,资源包括:包含PDCCH、PDSCH以及PUCCH的子帧中位于PUCCH的被预留的资源、包含PDCCH、PUSCH以及PUCCH的子帧中位于PUSCH或PUCCH的被预留的资源。
- 根据权利要求80或81所述的终端,其特征在于,所述被预留的资源包含在由第一网络设备发送的RRC信令,MAC层信令及物理层信令中的至少一种信令中。
- 一种网络设备,其特征在于,包括:发射器,用于在干扰测量资源上向另一网络设备发送干扰测量信号;其中干扰测量信号为用于测量不同方向链路之间的干扰的信号。
- 根据权利要求83所述的网络设备,其特征在于,包括:发射器,还用于向与所述网络设备关联的终端发送所述干扰测量资源的指示信息和/或干扰测量信号的指示信息,以使所述终端依据所述指示信息进行接收数据的速率匹配或打孔的数据操作。
- 根据权利要求84所述的网络设备,其特征在于,所述干扰测量资源的指示信息和/或所述干扰测量信号的指示信息通过RRC信令,MAC层信令以及物理层信令中的至少一种进行发送。
- 一种网络设备,其特征在于,包括:处理器,用于根据干扰测量资源的信息及干扰测量信号的信息,测量另一网络设备发射的干扰测量信号,以得到所述干扰测量信号的强度。
- 根据权利要求86所述的网络设备,其特征在于,还包括:发射器,用于向所述另一网络设备发送所述干扰测量信号的强度。
- 根据权利要求86所述的网络设备,其特征在于,还包括:发射器,用于向所述网络设备关联的终端发送所述干扰测量资源的指示信息和/或干扰测量信号的指示信息,以使所述终端依据所述指示信息进行上行传输数据的速率匹配或打孔的数据操作。
- 根据权利要求88所述的网络设备,其特征在于,所述干扰测量资源的指示信息和/或所述干扰测量信号的指示信息通过RRC信令,MAC层信令以及物理层信令中的至少一种进行发送。
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CA3057541A1 (en) | 2018-09-27 |
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