WO2018228465A1 - 一种发送功率的确定方法、处理芯片及通信设备 - Google Patents
一种发送功率的确定方法、处理芯片及通信设备 Download PDFInfo
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- WO2018228465A1 WO2018228465A1 PCT/CN2018/091226 CN2018091226W WO2018228465A1 WO 2018228465 A1 WO2018228465 A1 WO 2018228465A1 CN 2018091226 W CN2018091226 W CN 2018091226W WO 2018228465 A1 WO2018228465 A1 WO 2018228465A1
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- power ratio
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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
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
- H04W52/226—TPC being performed according to specific parameters taking into account previous information or commands using past references to control power, e.g. look-up-table
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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
- H04W52/16—Deriving transmission power values from another channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
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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
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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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method for determining transmit power, a processing chip, and a communication device.
- a higher carrier frequency (referred to as high frequency) relative to Long Term Evolution (LTE) will be adopted.
- LTE Long Term Evolution
- the frequency is generally higher than 6 GHz, and the currently focused frequency band is 28 GHz. 38GHz, 72GHz, etc., to achieve wireless communication with greater bandwidth and higher transmission rate.
- the radio frequency distortion of high-frequency systems will be more serious, especially the influence of phase noise.
- the effects of Doppler and Carrier Frequency Offset (CFO) will increase as the frequency becomes higher.
- MIMO-OFDM Massive input massive output-Orthogonal Frequency Division Multiplexing
- FFT Fourier Transform
- a channel representing the mth transmit antenna to the nth receive antenna on the kth subcarrier Indicates the transmission data of the mth antenna on the kth subcarrier, Represents noise on the kth subcarrier on the nth receive antenna.
- FIG. 1A is a constellation point where a 64QAM modulated signal is not affected by phase noise
- FIG. 1B is a constellation point of a 2G band 64QAM modulated signal affected by phase noise
- FIG. 1C is a constellation point of a 28GAM modulated signal affected by phase noise in a 28G band.
- the phase noise level deteriorates at a level of 20*log (f1/f2) .
- the phase noise level of the 28G band is 23 dB higher than that of the 2G band. The higher the phase noise level, the greater the influence of the Common Phase Error (CPE), and the greater the phase error caused by the CPE.
- CPE Common Phase Error
- PCRS Phase Compensation Reference Signals
- PTRS Phase Tracking Reference Signals
- the embodiment of the present application provides a method for determining a transmit power, which can flexibly adapt to different DMRS port numbers, PTRS port numbers, and port multiplexing mode configurations to ensure efficient use of energy and improve accuracy of PTRS measurements.
- the embodiment of the present application provides a method for determining transmit power, including: determining, by a first device, a relative power ratio of a phase tracking reference signal PTRS and a data channel, or a relative power ratio of a PTRS and a demodulation reference signal DMRS, Wherein the relative power ratio of the PTRS and the data channel is determined by the first function and the first variable, and the relative power ratio of the PTRS and the DMRS is determined by the second function, the first variable, and the second variable, wherein the first variable includes the number of transmission layers or the DMRS The number of ports, the second variable includes the frequency domain density of the DMRS; the first device determines the transmit power of the PTRS based on the relative power ratio of the PTRS and the data channel and the transmit power of the data channel, or the relative power ratio of the PTRS and the DMRS and the transmit power of the DMRS; The first device transmits the PTRS to the second device using the transmit power of the PTRS
- the first device includes a terminal device
- the second device includes a base station device
- the data channel includes a physical uplink shared channel PUSCH.
- the first device includes a base station device
- the second device includes a terminal device
- the data channel includes a physical downlink shared channel PDSCH.
- the relative power ratio of the PTRS and the data channel is determined by the first function and the first variable, including:
- the relative power ratio of the PTRS and the DMRS is determined by the second function, the first variable, and the second variable, including:
- X includes the first variable and Y includes the second variable.
- the embodiment of the present application provides a method for determining a transmit power, including: determining, by a lookup table, a relative power ratio of a phase tracking reference signal PTRS and a data channel, or a relative of a PTRS and a demodulation reference signal DMRS; Power ratio; the first device determines the transmit power of the PTRS based on the relative power ratio of the PTRS and the data channel and the transmit power of the data channel, or the relative power ratio of the PTRS and the DMRS and the transmit power of the DMRS; the first device uses the transmit power of the PTRS The second device sends a PTRS.
- the first device includes a terminal device
- the second device includes a base station device
- the data channel includes a physical uplink shared channel PUSCH.
- the first device includes a base station device
- the second device includes a terminal device
- the data channel includes a physical downlink shared channel PDSCH.
- the first device determines, by using a lookup table, a relative power ratio of the PTRS and the data channel, including:
- the first device determines the relative power ratio of the PTRS and the data channel by looking up the following table:
- the first device determines, by using a lookup table, a relative power ratio of the PTRS and the data channel, including:
- the first device determines the relative power ratio of the PTRS and the data channel by looking up the following table:
- the first device determines, by using a lookup table, a relative power ratio of the PTRS and the DMRS, including:
- the first device determines the relative power ratio of PTRS and DMRS by looking up the following table:
- Transport layer layer Frequency domain density of DMRS Relative power ratio (dB) of PTRS and DMRS 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-) 1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3
- DMRS port number Frequency domain density of DMRS Relative power ratio (dB) of PTRS and DMRS 1 1/4 (-)6
- an embodiment of the present application provides a processing chip, configured to: determine a relative power ratio of a phase tracking reference signal PTRS and a data channel, or a relative power ratio of a PTRS and a demodulation reference signal DMRS, where the PTRS and the data channel
- the relative power ratio is determined by the first function and the first variable
- the relative power ratio of the PTRS and the DMRS is determined by the second function, the first variable, and the second variable, wherein the first variable includes the number of transmission layers or the number of DMRS ports, and the second
- the variable includes the frequency domain density of the DMRS
- the transmission power of the PTRS is determined based on the relative power ratio of the PTRS and the data channel and the transmission power of the data channel, or the relative power ratio of the PTRS and the DMRS and the transmission power of the DMRS.
- the data channel includes a physical uplink shared channel PUSCH or a physical downlink shared channel PDSCH.
- the relative power ratio of the PTRS and the data channel is determined by the first function and the first variable, including:
- the relative power ratio of the PTRS and the DMRS is determined by the second function, the first variable, and the second variable, including:
- X includes the first variable and Y includes the second variable.
- the embodiment of the present application provides a processing chip, configured to: determine, by using a lookup table, a relative power ratio of a phase tracking reference signal PTRS and a data channel, or a relative power ratio of a PTRS and a demodulation reference signal DMRS;
- the transmission power of the PTRS is determined by the relative power ratio of the data channel and the transmission power of the data channel, or the relative power ratio of the PTRS and the DMRS and the transmission power of the DMRS.
- the data channel includes a physical uplink shared channel PUSCH.
- the data channel includes a physical downlink shared channel PDSCH.
- determining, by looking up the table, a relative power ratio of the PTRS and the data channel includes:
- determining, by looking up the table, a relative power ratio of the PTRS and the data channel includes:
- determining a relative power ratio of the PTRS and the DMRS by using a lookup table includes:
- Transport layer layer Frequency domain density of DMRS Relative power ratio (dB) of PTRS and DMRS 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-) 1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3
- DMRS port number Frequency domain density of DMRS Relative power ratio (dB) of PTRS and DMRS 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-) 1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3
- the present application provides a communication device, including a processor and a transmitter, for performing the method provided by the first aspect and all possible implementations thereof.
- the present application provides a communication device, including a processor and a transmitter, for performing the method provided by the second aspect and all possible implementations thereof.
- the present application provides a method for determining transmit power, including: a first device mapping data onto multiple transport layers, where multiple transport layers include a first transport layer, and a first transport layer corresponds to the first
- the RE set and the second RE set, the first RE set and the second RE set both comprise a plurality of REs, and each of the first RE sets is mapped with a phase tracking reference signal PTRS, each of the second RE sets None of the REs can be used to map data;
- the first device uses the power of all REs in the second RE set to enhance the transmit power of the PTRS mapped on all REs in the first RE set; the first device uses the enhanced transmit power to transmit the PTRS .
- the embodiment of the present application provides a communications device, including: a processor, configured to map data to multiple transport layers, where multiple transport layers include a first transport layer, and the first transport layer corresponds to the first a RE set and a second RE set, the first RE set and the second RE set both comprise a plurality of REs, and each of the first RE sets is mapped with a phase tracking reference signal PTRS, each of the second RE sets None of the REs can be used to map data; the power of all REs in the second RE set is used to enhance the transmit power of the PTRS mapped on all REs in the first RE set; and the transmitter is configured to use the enhanced transmit power to transmit the PTRS .
- the transmitting device first determines the relative power ratio of the PTRS and the data channel or the DMRS by looking up the table or calculating, and then determining the sending power of the PTRS according to the data channel or the transmitting power of the DMRS, and then transmitting the PTRS by using the sending power. It can flexibly adapt to different DMRS port numbers, PTRS port numbers, and port multiplexing mode configuration to ensure efficient use of energy.
- 1A is a constellation point where a 64QAM modulated signal is not affected by phase noise
- 1B is a constellation point of a 2G band 64QAM modulated signal affected by phase noise
- Figure 1C shows the constellation points of the 64GAM modulated signal in the 28G band affected by phase noise
- FIG. 2 is a schematic structural diagram of an application scenario according to an embodiment of the present disclosure
- 3 is a resource grid diagram of an LTE system
- 4A is a schematic diagram of a pilot pattern (uplink transmission, one transport layer, one DMRS port, one PTRS port) according to an embodiment of the present application;
- FIG. 4B is a schematic diagram of a pilot pattern according to an embodiment of the present disclosure (uplink transmission, two transmission layers, two DMRS ports, one PTRS port, and two DMRS ports are one group);
- FIG. 4C is a schematic diagram of a pilot pattern according to an embodiment of the present disclosure (uplink transmission, two transport layers, two DMRS ports, two PTRS ports, and two DMRS ports are two groups);
- FIG. 5 is a schematic flowchart of a method for determining transmission power according to an embodiment of the present disclosure
- FIG. 6 is a schematic structural diagram of hardware of a communication device according to an embodiment of the present disclosure.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- Wideband Code Division Multiple Access Wideband Code Division Multiple Access
- Code Division Multiple Access WCDMA
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- UMTS Universal Mobile Telecommunication System
- eLTE evolved Long Term Evolution
- 5G New Radio
- a terminal also called a User Equipment (UE) is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like.
- UE User Equipment
- Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
- MIDs mobile internet devices
- wearable devices such as smart watches, smart bracelets, pedometers, and the like.
- Network equipment which may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device may be a network device in a future 5G network, such as a gNB in an NR system. Or a small station, a micro station, a TRP (transmission reception point), or any other wireless device such as a relay station, an access point, or a network device in a future evolved Public Land Mobile Network (PLMN).
- BTS Base Transceiver Station
- NodeB, NB base station
- LTE Long Term Evolutional Node B, eNB or eNodeB
- CRAN Cloud Radio Access Network
- the network device may be a network device in a future 5G network
- Multiple means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
- the character "/” generally indicates that the contextual object is an "or” relationship.
- first, second, third, etc. may be used to describe various messages, requests, and terminals in the embodiments of the present application, these messages, requests, and terminals should not be limited to these terms. These terms are only used to distinguish messages, requests, and terminals from one another.
- FIG. 2 is a schematic structural diagram of an application scenario provided by an embodiment of the present application.
- the base station 101 and the terminal 102 are mainly included.
- the base station 101 can communicate with the terminal 102 using a low frequency (mainly below 6 GHz) or a relatively high frequency (6 GHz or higher) millimeter wave band.
- the millimeter wave band may be 28 GHz, 38 GHz, or an enhanced-band band of a data plane covering a smaller area, such as a band above 70 GHz.
- the terminal 102 covered by the base station 101 can communicate with the base station 101 using a low frequency or high frequency millimeter wave band.
- FIG. 2 is only a simplified schematic diagram of an example, and other devices may be included in the network, which are not shown in FIG. 2.
- the communication method and device provided by the embodiments of the present application may be applied to a terminal, where the terminal includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
- the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory).
- the operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
- the application layer includes applications such as a browser, an address book, word processing software, and instant messaging software.
- the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media.
- the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (Digital Versatile Disc, DVD). Etc.), smart cards and flash memory devices (eg, Erasable Programmable Read-Only Memory (EPROM), cards, sticks or key drivers, etc.).
- various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
- the term "machine-readable medium” may include, but is not limited to, a variety of media capable of storing, containing, and/or carrying instructions and/or data.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- FIG. 3 is a resource grid diagram of an LTE system.
- the transmission of the channel in the LTE system is in units of radio frames, and one radio frame includes 10 subframes, each of which has a length of 1 millisecond (ms), and each subframe includes Two slots, each slot is 0.5ms.
- the number of symbols included in each slot is related to the length of the CP (cyclic prefix) in the subframe. If the CP is a normal (normal) CP, each slot includes 7 symbols, and each subframe consists of 14 symbols. If the CP is an extended (long) CP, each slot includes 6 symbols, and each subframe consists of 12 symbols. Symbol composition.
- the downlink symbols are called orthogonal frequency division multiplexing (OFDM) symbols.
- a resource element (RE) is the smallest unit in the time-frequency domain, and is uniquely identified by an index pair (k, l), where k is a subcarrier index and l is a symbol index.
- next-generation wireless communication networks operating in the range above 6 GHz will suffer from more severe medium-frequency distortion, especially phase noise.
- the PTRS occupies some REs, and the occupied REs are originally used to transmit data channels (in the case of uplink transmission, the data channel includes a physical uplink shared channel (PUSCH), and in the downlink transmission, the data channel includes a physical downlink. Physical downlink shared channel (PDSCH) or other reference signal.
- PUSCH physical uplink shared channel
- PDSCH Physical downlink shared channel
- the most common case is that the occupied RE is originally used to transmit a data channel.
- the total power of the PTRS should be equal to the total power of the data channel to be sent on the occupied RE (in the embodiment of the present application)
- the "power" is equivalent to the "transmit power").
- the total power available at the transmitting end is pre-configured, if the transmission power of the PTRS is greater than the transmission power of the data channel originally to be transmitted on the occupied RE, the total power available may be exceeded, and if the PTRS is If the transmission power is smaller than the transmission power of the data channel to be sent on the occupied RE, the power is wasted.
- the transmission power of the PTRS is only slightly smaller than the difference (the difference does not exceed the preset threshold), the RE is occupied.
- the transmission power of the data channel to be transmitted is also feasible.
- the above line transmission is taken as an example.
- the transmission power of the PTRS is equal to the transmission power of the data channel originally to be transmitted on the occupied RE, and the formula (1) can be obtained:
- N layers ⁇ N RE/layers ⁇ P PUSCH N PTRS ports ⁇ N RE/PTRS ports ⁇ P PTRS (1)
- N layers are the number of transmission layers, and N RE/layers is the number of REs that cannot be used due to PTRS on each transport layer (in units of 1 resource block (RB), 1 ODFM symbol), and P PUSCH is the transmission.
- the power of the PUSCH on the layer in units of 1 RE
- the number of PTRS ports in the N PTRS ports , and the number of REs occupied by each PTRS port in the N RE/PTRS ports (in units of 1 RB, 1 ODFM symbols, The assumption is 1)
- P PTRS is the power of PTRS (in units of 1 RE).
- Equation (2) can be further derived from equation (1):
- N RE / layerss N PTRS ports ⁇ N RE / PTRS ports
- Formula (3) can be further derived:
- Equation (4) can be further derived from equation (3):
- Relative power ratio of PTRS and PUSCH 10log 10 (N layers ) (4)
- Relative power ratio of PTRS and PUSCH 10log 10 (N DMRS ports ) (5)
- the terminal device may calculate the relative power ratio of the PTRS and the PUSCH by using Equation (4) or (5), and then combine the power of the PUSCH to finally obtain the power of the PTRS, and use the power of the PTRS to transmit the PTRS.
- the formula (4) or (5) can be used to calculate the relative power of PTRS and PUSCH when the number of transmission layers is 1-8, the number of DMRS ports is 1-8, and the number of PTRS ports is equal to or less than the number of DMRS ports. Ratio, as shown in Table (1):
- Table (1) can be further extended, as shown in Table (2):
- the values of the relative power ratios of PTRS and PUSCH in Tables (1) and (2) can be removed by decimals, and integers are used, for example, when the number of transmission layers is 3 and the number of DMRS ports is 3.
- the value of the relative power ratio of PTRS and PUSCH can be an integer of 4.77, and the value obtained is 4. It is also possible to reserve only one decimal place for the relative power ratios of PTRS and PUSCH in Table (1) and Table (2), for example, when the number of transmission layers is 3 and the number of DMRS ports is 3, the relative power ratio of PTRS and PUSCH
- the value can hold one decimal for 4.77 and the value is 4.7. Whether to take an integer or to keep a decimal number rounded off, the embodiment of the present application is not limited.
- the terminal device can also obtain the relative power ratio of the PTRS and the PUSCH by looking up a table (for example, Table (1) or Table (2)), and then combining the power of the PUSCH to finally obtain the power of the PTRS, and using the power of the PTRS.
- a table for example, Table (1) or Table (2)
- the transmission power of the DMRS is equal to the transmission power of the data channel originally to be transmitted on the occupied RE, and formula (6) can be obtained:
- N layers ⁇ N' RE/layers ⁇ P PUSCH N DMRS ports ⁇ N RE/DMRS ports ⁇ P DMRS (6)
- N layers are the number of transmission layers
- N DMRS ports are the number of DMRS ports
- N' RE/layers is the number of REs per transmission layer (in units of 1 RB 1 OFDM symbols, usually 12 REs)
- N RE/DMRS ports The number of REs occupied by each DMRS port (in units of 1 RB, 1 OFDM symbol)
- P DMRS is the power spectrum density (PSD) of the DMRS (in units of 1 RE)
- P PUSCH is the PUSCH on the transport layer. Power (in 1 RE unit).
- Equation (7) can be further derived from equation (6):
- D DMRS is the frequency domain density of DMRS, equal to Can draw the formula (9):
- Equation (12) can be further obtained according to formula (11):
- Relative power ratio of PTRS and DMRS 10log 10 (N layers D DMRS ) (13)
- the terminal device can calculate the relative power ratio of the PTRS and the DMRS through the formula (13) or (14), and combine the power of the DMRS to finally obtain the power of the PTRS, and use the power of the PTRS to transmit the PTRS.
- the formula (13) or (14) can be used to calculate the relative power of PTRS and DMRS when the number of transmission layers is 1-8, the number of DMRS ports is 1-8, and the number of PTRS ports is equal to or less than the number of DMRS ports. Ratio, as shown in Table (3):
- Transport layer layer layer DMRS port number Frequency domain density of DMRS Relative power ratio (dB) of PTRS and DMRS 1 1 1/4 (-)6 2 2 1/4 (-)3 3 3 1/4 (-) 1.23 4 4 1/4 0 5 5 1/4 0 6 6 1/4 0 7 7 1/4 0
- Table (3) can be further extended, as shown in Table (4):
- Transport layer layer layer DMRS port number Frequency domain density of DMRS Relative power ratio (dB) of PTRS and DMRS 1 1 1/4 (-)6 2 2 1/4 (-)3 3 3 1/4 (-) 1.23 4 4 1/4 0 5 5 1/4 0 6 6 1/4 0 7 7 1/4 0 8 8 1/4 3 9 9 1/6 1.76 10 10 1/6 2.22 11 11 1/6 2.63 12 12 1/6 3.01
- the frequency domain density of the DMRS can also be other values, such as 1/2, 1/3, etc., assuming that the frequency domain density of the DMRS can be 1/2, 1/3 for each transmission layer or each DMRS port number. , 1/4 and 1/6, then we can get the table (5) as follows:
- Table (5) provides a relative power ratio of the PTRS and the DMRS including a plurality of configuration possibilities, which can be arbitrarily split and used in the embodiment of the present application.
- the first two columns can retain only one of the columns.
- the value of the relative power ratio of PTRS and DMRS in Tables (3)-(5) can be removed by a decimal number, for example, when the number of transmission layers is 9, and the number of DMRS ports is 9.
- the value of the relative power ratio of PTRS and DMRS can be an integer of 1.76, and the value obtained is 1.
- the terminal device can obtain the relative power ratio of the PTRS and the DMRS by looking up a table (for example, Table (3), Table (4) or Table (5)), and combining the power of the DMRS to finally obtain the power of the PTRS, and use The power of the PTRS is used to transmit the PTRS.
- a table for example, Table (3), Table (4) or Table (5)
- the N RE/PTRS ports that is, the number of REs occupied by each PTRS port (in units of 1 RB, 1 ODFM symbols) is assumed to be 1, but in implementation, 1 RB, 1 ODFM Within the symbol, the number of REs occupied by each PTRS port may also be greater than 1, that is, N RE / PTRS ports > 1, in this case, formula (4), formula (5), formula (13), formula (14) In the middle, you need to add the frequency domain density of PTRS as another variable, as shown in formula (15):
- Relative power ratio of PTRS and PUSCH 10log 10 (N layers D PTRS )
- Relative power ratio of PTRS and PUSCH 10log 10 (N DMRS ports D PTRS )
- Relative power ratio of PTRS and DMRS 10log 10 (N layers D DMRS D PTRS )
- Relative power ratio of PTRS and DMRS 10log 10 (N DMRS ports D DMRS D PTRS ) (15)
- D PTRS is the frequency domain density of PTRS.
- the terminal device calculates by using the formula (4) or (5), or obtains the relative power ratio of the PTRS and the PUSCH by using the table (1) or the table (2), and can combine the power of the PUSCH.
- another parameter OFFSET PTRS-PUSCH which finally derives the power of the PTRS and uses the power of the PTRS to transmit the PTRS.
- OFFSET PTRS-PUSCH indicates a reference offset between PTRS power and PUSCH power, which can be configured by the base station.
- the terminal device calculates by formula (13) or (14), or obtains the relative power ratio of PTRS and DMRS through table (3), table (4) or table (5), and can combine PUSCH.
- the power, as well as another parameter, OFFSET PTRS-DMRS ultimately yields the power of the PTRS and uses the power of the PTRS to transmit the PTRS.
- the OFFSET PTRS-DMRS indicates a reference offset between the PTRS power and the DMRS power, which can be configured by the base station, and can be obtained by accumulating the OFFSET PTRS-PUSCH and the reference offset OFFSET DMRS-PUSCH between the DMRS power and the PUSCH power. .
- the relative power ratio of the PTRS and the PUSCH, and the relative power ratio of the PTRS and the DMRS may also be preset or configured by the base station, and the terminal device directly acquires the relative power ratio of the PTRS and the PUSCH, and the relative power ratio of the PTRS and the DMRS. Thereafter, the power of the PTRS is derived according to the method described in the embodiment of the present application.
- the base station may also configure the maximum power P MAX of the PTRS.
- P MAX the maximum power of the PTRS calculated by the terminal device calculated by any formula in the embodiment of the present application.
- the embodiment of the present application will verify the formula (4), the formula (5), the formula (13), the formula (14), and the tables (1) to (5) by way of example.
- the DMRS ports are grouped according to the crystal oscillator, and the DMRS ports of the same local oscillator are divided into one group, and the phase noise experienced by all the ports in the group can be measured by the PTRS on one port.
- FIG. 4A is a schematic diagram of a pilot pattern (uplink transmission, one transport layer, one DMRS port, one PTRS port) according to an embodiment of the present application.
- the powers of the PTRS and the PUSCH are consistent, and the relative power ratio of the PTRS and the PUSCH is 0 dB.
- FIG. 4B is a schematic diagram of a pilot pattern according to an embodiment of the present disclosure (uplink transmission, two transmission layers, two DMRS ports, one PTRS port, and two DMRS ports are one group).
- FIG. 4B(1) is a schematic diagram of a pilot pattern of the transmission layer 1
- FIG. 4B(2) is a schematic diagram of a pilot pattern of the transmission layer 2. Since two layers of transmission are used, the power of the PUSCH of each layer is only half of the total power, and the PTRS is transmitted by only one port, and the total power is used, so the relative power ratio of the PTRS and the PUSCH is 3 dB.
- FIG. 4C is a schematic diagram of a pilot pattern according to an embodiment of the present disclosure (uplink transmission, two transmission layers, two DMRS ports, two PTRS ports, and two DMRS ports are two groups).
- FIG. 4C(1) is a schematic diagram of a pilot pattern of the transmission layer 1
- FIG. 4C(2) is a schematic diagram of a pilot pattern of the transmission layer 2. Due to the orthogonal assumption between the PTRS and the data, the RE transmitting the PTRS at the transport layer 1 cannot map the data at the transport layer 2. Then the power on these unused REs can be used to enhance the transmit power of the PTRS. That is, in order to maintain the total power consistency, the PTRS power transmitted at each layer should be twice the power of the data channel.
- FIG. 5 is a schematic flowchart of a method for determining transmission power according to an embodiment of the present disclosure. As shown in Figure 5, it includes:
- the terminal device determines a relative power ratio of the PTRS and the PUSCH.
- the terminal device may determine the relative power ratio of the PTRS and the PUSCH according to the formula provided in the embodiment of the present application, or by searching the table provided in the embodiment of the present application, or the terminal device may also determine the relative power ratio of the PTRS and the DMRS.
- the terminal device determines a transmit power of the PTRS.
- the terminal device determines the transmission power of the PTRS based on the relative power ratio of the PTRS and the PUSCH, and the transmission power of the PUSCH, or determines the transmission power of the PTRS based on the relative power ratio of the PTRS and the DMRS, and the transmission power of the DMRS.
- the terminal device sends the PTRS by using the determined transmit power.
- the above-mentioned line transmission is taken as an example for description.
- the new radio adopts the uplink and downlink symmetric DMRS and PTRS pilot pattern design, so in the embodiment of the present application, All formulas and tables are still applicable to the determination of the downlink PTRS power, as long as the "PUSCH" involved is changed to "PDSCH".
- the sentence pattern is changed.
- the pilot pattern indicates that the PTRS to be transmitted and other reference signals to be transmitted occupy the same or the same RE (collision RE)
- the PTRS is not allowed to occupy the RE of other reference signals, that is, sending other
- the priority of the reference signal is greater than the priority of the transmitted PTRS.
- the base station device maps other reference signals to be transmitted to the conflicting RE, and transmits only other reference signals on the conflicting RE. The method described in the previous embodiment can be used to determine the PTRS transmission power.
- the PTRS to be transmitted is allowed to occupy the RE of other reference signals to be transmitted.
- the base station device maps the PTRS to be transmitted to the conflicting RE, and only transmits the PTRS on the conflicting RE.
- the power of the RE originally used to transmit other reference signals can be used to power enhance the PTRS.
- the embodiment of the present application uses an RE that does not map data.
- the meanings of the following expressions may be the same: an RE that cannot be used for mapping data, an RE that is not used for mapping data, an RE that does not map data, and a muted.
- the power of the PTRS is enhanced by the power of the PTRS, and the relative power ratio of the enhanced PTRS and the data (which may also be referred to as "the difference between the power of the PTRS and the power of the data") is equal to the number of transmission layers (in the multilayer transmission, The number of transmission layers is greater than or equal to 2), that is, 10log 10 (N layers ).
- the number of PTRS ports is equal to the number of DMRS ports
- some REs on a certain transport layer will not map data, and the power of these unmapped REs will be Used to enhance the power of the PTRS of the transport layer.
- the relative power ratio of the PTRS and the data on each transport layer is equal to the logarithm of the number of transport layers; when the number of PTRS ports is less than the number of DMRS ports, the power can be "borrowed" across layers, that is, using a certain transmission.
- the power of the RE of the data is not mapped on the layer to enhance the power of the PTRS on the other transport layer, and the relative power ratio of the transmission power of the PTRS and the data on the transport layer where the PTRS is located is equal to the logarithm of the number of transport layers.
- the transmitting device first determines the relative power ratio of the PTRS and the data channel or the DMRS by looking up the table or calculating, and then determining the sending power of the PTRS according to the data channel or the transmitting power of the DMRS, and then transmitting the PTRS by using the sending power. It can flexibly adapt to different DMRS port numbers, PTRS port numbers, and port multiplexing mode configuration to ensure efficient use of energy.
- FIG. 6 is a schematic structural diagram of hardware of a communication device according to an embodiment of the present disclosure. As shown in FIG. 6, the communication device 60 includes:
- a memory 61 configured to store program code including computer operating instructions
- the processor 62 is configured to execute the computer operation instruction to execute:
- a relative power ratio of the phase tracking reference signal PTRS and the data channel or a relative power ratio of the PTRS and the demodulation reference signal DMRS, wherein the relative power ratio of the PTRS and the data channel is determined by the first function and the first variable, PTRS and DMRS
- the relative power ratio is determined by the second function, the first variable, and the second variable, wherein the first variable includes a number of transmission layers or a number of DMRS ports, and the second variable includes a frequency domain density of the DMRS;
- the transmitter 63 is configured to send the PTRS to another communication device by using the transmit power of the PTRS.
- processor 62 is further configured to execute the computer operating instructions to perform:
- the transmission power of the PTRS is determined based on the relative power ratio of the PTRS and the data channel and the transmission power of the data channel, or the relative power ratio of the PTRS and the DMRS and the transmission power of the DMRS.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the sending end first obtains the relative power ratio of the PTRS and the data channel or the DMRS, and determines the sending power of the PTRS according to the data channel or the transmitting power of the DMRS.
- the sending power of the PTRS is directly calculated in the embodiment of the present application. .
- the uplink transmit power should satisfy the signal-to-interference plus noise ratio required for the PUSCH data transmission to achieve a 10% error rate based on different modulation and coding schemes (MCS). , SINR), the base station device determines the PUSCH transmission power based on this requirement.
- MCS modulation and coding schemes
- the calculation formula of the transmission power of the data channel can be:
- i denotes a subframe number (or slot number, symbol number)
- c denotes a cell number (or beam number, beam group number)
- j denotes a preset value, which can be configured or preset by the base station device ;
- P PUSCH,c (i) represents the transmission power of the terminal device transmitting the PUSCH to the cell c in the subframe i;
- the linear value of c(i) , P CMAX,c (i) represents the available transmit power of the terminal device
- P PUCCH (i) a linear value
- P PUCCH (i) denotes a transmission power of the terminal apparatus on the subframe i used in the PUCCH
- M PUSCH,c (i) represents the bandwidth occupied by the PUSCH resources on the subframe i, in units of the number of RBs;
- P O_PUSCH,c (j) represents PUSCH reference power
- P O_PUSCH,c (j) P O_UE_PUSCH,c (j)+P O_NOMINAL_PUSCH,c (j), where P O_NOMINAL_PUSCH,c (j) represents half of cell c
- the static transmit power reference is usually a common value configured by the base station device for all terminal devices in the cell
- P O_UE_PUSCH,c (j) represents the power offset of each terminal device in the cell c on the semi-static transmit power reference of the cell c. , usually a unique value configured by the base station device for each terminal device;
- ⁇ c (j) represents the degree of road damage compensation
- PL c denotes a reference signal of the terminal device to the cell c (for example, a channel state information reference signal (CSI-RS), a cell-specific reference signal (CRS), a synchronization signal block (Synchronization) Signal block, referred to as SS Block), etc.) measured path loss value;
- CSI-RS channel state information reference signal
- CRS cell-specific reference signal
- SS Block synchronization signal block
- ⁇ TF,c (i) indicates that the transmission power per RB is allowed to be adaptive to the transmission information data rate according to the transmission format
- DCI Downlink Control Information
- the terminal device acquires preset adjustment parameters and a transmission bandwidth of the PTRS
- the terminal device determines a transmit power of the PTRS, where the transmit power of the PTRS is determined by at least a preset function, an adjustment parameter, and a transmission bandwidth of the PTRS;
- the terminal device transmits the PTRS to the base station device using the transmission power of the PTRS.
- the transmission power of the PTRS is determined by the following formula. :
- P CMAX,c (i), P O_PUSCH,c (j), ⁇ c (j), PL c and f c (i) are all multiplexed from equation (16).
- P PTRS,c (i) represents the transmission power of the PTRS, including the transmission power of the terminal device transmitting the PTRS to the cell c in the subframe i, and the unit of the value is dBm;
- M PTRS,c indicates the transmission of the PTRS Bandwidth;
- the base station device may configure or preset parameters by using RRC signaling or DCI.
- the transmission power of the PTRS is obtained by directly calculating, so that the terminal device can conveniently determine the transmission power of the PTRS.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- the embodiment of the present application provides another method for directly calculating the transmit power of the PTRS, including:
- the terminal device acquires the PTRS reference power
- the terminal device determines a transmit power of the PTRS, where the transmit power of the PTRS is determined by at least a preset function and a PTRS reference power;
- the terminal device transmits the PTRS to the base station device using the transmission power of the PTRS.
- the terminal device can determine the transmit power of the PTRS by using the following formula:
- P PTRS,c (i), P CMAX,c (i), ⁇ c (j) and PL c are the same as in the formula (17).
- P O_PTRS,c (j) represents PTRS reference power
- P O_PTRS,c (j) P O_NOMINAL_PTRS +P O_UE_PTRS
- P O_NOMINAL_PTRS indicates that the base station device configures a common value for all terminal devices in the cell c
- P O_UE_PTRS indicates the base station.
- the device is a unique value configured for each terminal device in the cell c.
- parameter g(i) may also be added in the formula (18), so that each terminal device can adjust the transmission power of the PTRS according to its own condition, as shown in the following formula:
- g(i) represents an adjustment parameter specific to the terminal device.
- n RS represents a priority parameter of the PTRS
- h(n RS ) represents a power offset obtained by the terminal device through the n RS ;
- F denotes a pilot pattern
- ⁇ PTRS (F) denotes an adjustment amount caused by the pilot pattern, and different adjustment amounts caused by different pilot patterns
- N PTRS-port indicates the number of antenna ports that transmit the PTRS
- ⁇ TxD indicates the amount of adjustment of the power caused by the number of antenna ports. Different antenna port numbers also cause different adjustment amounts.
- the transmission power of the PTRS is obtained by directly calculating, so that the terminal device can conveniently determine the transmission power of the PTRS.
- the method for determining the transmission power provided by the second embodiment and the third embodiment may also be performed by the communication device shown in FIG. 6.
- the memory 61 is configured to store a program code including a computer operation instruction
- the processor 62 uses The required parameters are obtained, and the transmission power of the PTRS is calculated by using one of the parameters and equations (17)-(20), and the transmitter 63 is configured to transmit the PTRS to another communication device using the transmission power of the PTRS.
- the embodiment of the present application further provides a computer readable storage medium for storing computer software instructions required to execute the foregoing processor, which includes a program for executing the above-mentioned processor.
- embodiments of the present application can be provided as a method, system, or computer program product.
- the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
- the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
Description
传输层layer数 | PTRS和PUSCH的相对功率比(dB) |
1 | 0 |
2 | 3 |
3 | 4.77 |
4 | 6 |
5 | 7 |
6 | 7.78 |
7 | 8.45 |
8 | 9 |
DMRS端口数 | PTRS和PUSCH的相对功率比(dB) |
1 | 0 |
2 | 3 |
3 | 4.77 |
4 | 6 |
5 | 7 |
6 | 7.78 |
7 | 8.45 |
8 | 9 |
传输层layer数 | PTRS和PDSCH的相对功率比(dB) |
1 | 0 |
2 | 3 |
3 | 4.77 |
4 | 6 |
5 | 7 |
6 | 7.78 |
7 | 8.45 |
8 | 9 |
DMRS端口数 | PTRS和PDSCH的相对功率比(dB) |
1 | 0 |
2 | 3 |
3 | 4.77 |
4 | 6 |
5 | 7 |
6 | 7.78 |
7 | 8.45 |
8 | 9 |
传输层layer数 | DMRS的频域密度 | PTRS和DMRS的相对功率比(dB) |
1 | 1/4 | (-)6 |
2 | 1/4 | (-)3 |
3 | 1/4 | (-)1.23 |
4 | 1/4 | 0 |
5 | 1/4 | 0 |
6 | 1/4 | 0 |
7 | 1/4 | 0 |
8 | 1/4 | 3 |
DMRS端口数 | DMRS的频域密度 | PTRS和DMRS的相对功率比(dB) |
1 | 1/4 | (-)6 |
2 | 1/4 | (-)3 |
3 | 1/4 | (-)1.23 |
4 | 1/4 | 0 |
5 | 1/4 | 0 |
6 | 1/4 | 0 |
7 | 1/4 | 0 |
8 | 1/4 | 3 |
传输层layer数 | PTRS和PUSCH的相对功率比(dB) |
1 | 0 |
2 | 3 |
3 | 4.77 |
4 | 6 |
5 | 7 |
6 | 7.78 |
7 | 8.45 |
8 | 9 |
DMRS端口数 | PTRS和PUSCH的相对功率比(dB) |
1 | 0 |
2 | 3 |
3 | 4.77 |
4 | 6 |
5 | 7 |
6 | 7.78 |
7 | 8.45 |
8 | 9 |
传输层layer数 | PTRS和PDSCH的相对功率比(dB) |
1 | 0 |
2 | 3 |
3 | 4.77 |
4 | 6 |
5 | 7 |
6 | 7.78 |
7 | 8.45 |
8 | 9 |
DMRS端口数 | PTRS和PDSCH的相对功率比(dB) |
1 | 0 |
2 | 3 |
3 | 4.77 |
4 | 6 |
5 | 7 |
6 | 7.78 |
7 | 8.45 |
8 | 9 |
传输层layer数 | DMRS的频域密度 | PTRS和DMRS的相对功率比(dB) |
1 | 1/4 | (-)6 |
2 | 1/4 | (-)3 |
3 | 1/4 | (-)1.23 |
4 | 1/4 | 0 |
5 | 1/4 | 0 |
6 | 1/4 | 0 |
7 | 1/4 | 0 |
8 | 1/4 | 3 |
DMRS端口数 | DMRS的频域密度 | PTRS和DMRS的相对功率比(dB) |
1 | 1/4 | (-)6 |
2 | 1/4 | (-)3 |
3 | 1/4 | (-)1.23 |
4 | 1/4 | 0 |
5 | 1/4 | 0 |
6 | 1/4 | 0 |
7 | 1/4 | 0 |
8 | 1/4 | 3 |
传输层layer数 | DMRS端口数 | PTRS和PUSCH的相对功率比(dB) |
1 | 1 | 0 |
2 | 2 | 3 |
3 | 3 | 4.77 |
4 | 4 | 6 |
5 | 5 | 7 |
6 | 6 | 7.78 |
7 | 7 | 8.45 |
8 | 8 | 9 |
传输层layer数 | DMRS端口数 | PTRS和PUSCH的相对功率比(dB) |
1 | 1 | 0 |
2 | 2 | 3 |
3 | 3 | 4.77 |
4 | 4 | 6 |
5 | 5 | 7 |
6 | 6 | 7.78 |
7 | 7 | 8.45 |
8 | 8 | 9 |
9 | 9 | 9.54 |
10 | 10 | 10 |
11 | 11 | 10.41 |
12 | 12 | 10.79 |
传输层layer数 | DMRS端口数 | DMRS的频域密度 | PTRS和DMRS的相对功率比(dB) |
1 | 1 | 1/4 | (-)6 |
2 | 2 | 1/4 | (-)3 |
3 | 3 | 1/4 | (-)1.23 |
4 | 4 | 1/4 | 0 |
5 | 5 | 1/4 | 0 |
6 | 6 | 1/4 | 0 |
7 | 7 | 1/4 | 0 |
8 | 8 | 1/4 | 3 |
传输层layer数 | DMRS端口数 | DMRS的频域密度 | PTRS和DMRS的相对功率比(dB) |
1 | 1 | 1/4 | (-)6 |
2 | 2 | 1/4 | (-)3 |
3 | 3 | 1/4 | (-)1.23 |
4 | 4 | 1/4 | 0 |
5 | 5 | 1/4 | 0 |
6 | 6 | 1/4 | 0 |
7 | 7 | 1/4 | 0 |
8 | 8 | 1/4 | 3 |
9 | 9 | 1/6 | 1.76 |
10 | 10 | 1/6 | 2.22 |
11 | 11 | 1/6 | 2.63 |
12 | 12 | 1/6 | 3.01 |
Claims (58)
- 一种发送功率的确定方法,其特征在于,包括:第一设备确定相位跟踪参考信号PTRS和数据信道的相对功率比,或者PTRS和解调参考信号DMRS的相对功率比,其中所述PTRS和数据信道的相对功率比通过第一函数和第一变量确定,所述PTRS和DMRS的相对功率比通过第二函数、所述第一变量和第二变量确定,其中所述第一变量包括传输层数或DMRS端口数,所述第二变量包括所述DMRS的频域密度;所述第一设备基于所述PTRS和数据信道相对功率比和所述数据信道的发送功率,或者所述PTRS和DMRS的相对功率比和所述DMRS的发送功率确定所述PTRS的发送功率;所述第一设备使用所述PTRS的发送功率向第二设备发送所述PTRS。
- 根据权利要求1所述的方法,其特征在于,所述第一设备包括终端设备,所述第二设备包括基站设备,所述数据信道包括物理上行共享信道PUSCH。
- 根据权利要求1所述的方法,其特征在于,所述第一设备包括基站设备,所述第二设备包括终端设备,所述数据信道包括物理下行共享信道PDSCH。
- 根据权利要求1-3任一项所述的方法,其特征在于,所述PTRS和数据信道的相对功率比通过第一函数和第一变量确定包括:PTRS和数据信道的相对功率比=10log 10(X)其中,所述X包括所述第一变量。
- 根据权利要求1-3任一项所述的方法,其特征在于,所述PTRS和DMRS的相对功率比通过第二函数、所述第一变量和第二变量确定包括:PTRS和DMRS的相对功率比=10log 10(XY)其中,所述X包括所述第一变量,所述Y包括所述第二变量。
- 一种发送功率的确定方法,其特征在于,包括:第一设备通过查表确定相位跟踪参考信号PTRS和数据信道的相对功率比,或者PTRS和解调参考信号DMRS的相对功率比;所述第一设备基于所述PTRS和数据信道相对功率比和所述数据信道的发送功率,或者所述PTRS和DMRS的相对功率比和所述DMRS的发送功率确定所述PTRS的发送功率;所述第一设备使用所述PTRS的发送功率向第二设备发送所述PTRS。
- 根据权利要求6所述的方法,其特征在于,所述第一设备包括终端设备,所述第二设备包括基站设备,所述数据信道包括物理上行共享信道PUSCH。
- 根据权利要求6所述的方法,其特征在于,所述第一设备包括基站设备,所述第二设备包括终端设备,所述数据信道包括物理下行共享信道PDSCH。
- 根据权利要求7所述的方法,其特征在于,所述第一设备通过查表确定PTRS和数据信道的相对功率比包括:所述第一设备通过查找以下表格确定所述PTRS和数据信道的相对功率比:
传输层layer数 PTRS和PUSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 或者DMRS端口数 PTRS和PUSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 - 根据权利要求8所述的方法,其特征在于,所述第一设备通过查表确定PTRS和数据信道的相对功率比包括:所述第一设备通过查找以下表格确定所述PTRS和数据信道的相对功率比:
传输层layer数 PTRS和PDSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 或者DMRS端口数 PTRS和PDSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 - 根据权利要求6-8任一项所述的方法,其特征在于,所述第一设备通过查表确定PTRS和DMRS的相对功率比包括:所述第一设备通过查找以下表格确定所述PTRS和DMRS的相对功率比:
传输层layer数 DMRS的频域密度 PTRS和DMRS的相对功率比(dB) 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-)1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3 或者DMRS端口数 DMRS的频域密度 PTRS和DMRS的相对功率比(dB) 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-)1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3 - 一种处理芯片,其特征在于,所述处理芯片用于:确定相位跟踪参考信号PTRS和数据信道的相对功率比,或者PTRS和解调参考信号DMRS的相对功率比,其中所述PTRS和数据信道的相对功率比通过第一函数和第一变量确定,所述PTRS和DMRS的相对功率比通过第二函数、所述第一变量和第二变量确定,其中所述第一变量包括传输层数或DMRS端口数,所述第二变量包括所述DMRS的频域密度;基于所述PTRS和数据信道相对功率比和所述数据信道的发送功率,或者所述PTRS和DMRS的相对功率比和所述DMRS的发送功率确定所述PTRS的发送功率。
- 根据权利要求12所述的处理芯片,其特征在于,所述数据信道包括物理上行共享信道PUSCH或者物理下行共享信道PDSCH。
- 根据权利要求12或13所述的处理芯片,其特征在于,所述PTRS和数据信道的相对功率比通过第一函数和第一变量确定包括:PTRS和数据信道的相对功率比=10log 10(X)其中,所述X包括所述第一变量。
- 根据权利要求12或13所述的处理芯片,其特征在于,所述PTRS和DMRS的相对功率比通过第二函数、所述第一变量和第二变量确定包括:PTRS和DMRS的相对功率比=10log 10(XY)其中,所述X包括所述第一变量,所述Y包括所述第二变量。
- 一种处理芯片,其特征在于,所述处理芯片用于:通过查表确定相位跟踪参考信号PTRS和数据信道的相对功率比,或者PTRS和解调参考信号DMRS的相对功率比;基于所述PTRS和数据信道相对功率比和所述数据信道的发送功率,或者所述PTRS和DMRS的相对功率比和所述DMRS的发送功率确定所述PTRS的发送功率。
- 根据权利要求16所述的处理芯片,其特征在于,所述数据信道包括物理上行共享信道PUSCH。
- 根据权利要求16所述的处理芯片,其特征在于,所述数据信道包括物理下行共享信道PDSCH。
- 根据权利要求17所述的方法,其特征在于,所述通过查表确定PTRS和数据信道的相对功率比包括:通过查找以下表格确定所述PTRS和数据信道的相对功率比:
传输层layer数 PTRS和PUSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 或者DMRS端口数 PTRS和PUSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 - 根据权利要求18所述的处理芯片,其特征在于,所述通过查表确定PTRS和数据信道的相对功率比包括:通过查找以下表格确定所述PTRS和数据信道的相对功率比:
传输层layer数 PTRS和PDSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 或者DMRS端口数 PTRS和PDSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 - 根据权利要求16-18任一项所述的处理芯片,其特征在于,所述通过查表确定PTRS和DMRS的相对功率比包括:通过查找以下表格确定所述PTRS和DMRS的相对功率比:
DMRS端口数 DMRS的频域密度 PTRS和DMRS的相对功率比(dB) 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-)1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3 或者DMRS端口数 DMRS的频域密度 PTRS和DMRS的相对功率比(dB) 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-)1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3 - 一种通信设备,其特征在于,包括:处理器,用于确定相位跟踪参考信号PTRS和数据信道的相对功率比,或者PTRS和解调参考信号DMRS的相对功率比,其中所述PTRS和数据信道的相对功率比通过第一函数和第一变量确定,所述PTRS和DMRS的相对功率比通过第二函数、所述第一变量和第二变量确定,其中所述第一变量包括传输层数或DMRS端口数,所述第二变量包括所述DMRS的频域密度;基于所述PTRS和数据信道相对功率比和所述数据信道的发送功率,或者所述PTRS和DMRS的相对功率比和所述DMRS的发送功率确定所述PTRS的发送功率;发送器,用于使用所述PTRS的发送功率向另一通信设备发送所述PTRS。
- 根据权利要求22所述的通信设备,其特征在于,所述通信设备包括终端设备,所述另一通信设备包括基站设备,所述数据信道包括物理上行共享信道PUSCH。
- 根据权利要求22所述的通信设备,其特征在于,所述通信设备包括基站设备,所述另一通信设备包括终端设备,所述数据信道包括物理下行共享信道PDSCH。
- 根据权利要求22-24任一项所述的通信设备,其特征在于,所述PTRS和数据信道的相对功率比通过第一函数和第一变量确定包括:PTRS和数据信道的相对功率比=10log 10(X)其中,所述X包括所述第一变量。
- 根据权利要求22-24任一项所述的通信设备,其特征在于,所述PTRS和DMRS的相对功率比通过第二函数、所述第一变量和第二变量确定包括:PTRS和DMRS的相对功率比=10log 10(XY)其中,所述X包括所述第一变量,所述Y包括所述第二变量。
- 一种通信设备,其特征在于,包括:处理器,用于通过查表确定相位跟踪参考信号PTRS和数据信道的相对功率比,或者 PTRS和解调参考信号DMRS的相对功率比;基于所述PTRS和数据信道相对功率比和所述数据信道的发送功率,或者所述PTRS和DMRS的相对功率比和所述DMRS的发送功率确定所述PTRS的发送功率;发送器,用于使用所述PTRS的发送功率向第二设备发送所述PTRS。
- 根据权利要求27所述的通信设备,其特征在于,所述通信设备包括终端设备,所述另一通信设备包括基站设备,所述数据信道包括物理上行共享信道PUSCH。
- 根据权利要求27所述的通信设备,其特征在于,所述通信设备包括基站设备,所述另一通信设备包括终端设备,所述数据信道包括物理下行共享信道PDSCH。
- 根据权利要求28所述的通信设备,其特征在于,所述通过查表确定PTRS和数据信道的相对功率比包括:通过查找以下表格确定所述PTRS和数据信道的相对功率比:
传输层layer数 PTRS和PUSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 或者DMRS端口数 PTRS和PUSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 - 根据权利要求29所述的通信设备,其特征在于,所述通过查表确定PTRS和数据信道的相对功率比包括:通过查找以下表格确定所述PTRS和数据信道的相对功率比:
传输层layer数 PTRS和PDSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 或者DMRS端口数 PTRS和PDSCH的相对功率比(dB) 1 0 2 3 3 4.77 4 6 5 7 6 7.78 7 8.45 8 9 - 根据权利要求27-29任一项所述的通信设备,其特征在于,所述通过查表确定PTRS和DMRS的相对功率比包括:通过查找以下表格确定所述PTRS和DMRS的相对功率比:
传输层layer数 DMRS的频域密度 PTRS和DMRS的相对功率比(dB) 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-)1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3 或者DMRS端口数 DMRS的频域密度 PTRS和DMRS的相对功率比(dB) 1 1/4 (-)6 2 1/4 (-)3 3 1/4 (-)1.23 4 1/4 0 5 1/4 0 6 1/4 0 7 1/4 0 8 1/4 3 - 一种发送功率的确定方法,其特征在于,包括:第一设备将数据映射到多个传输层上,其中所述多个传输层包括第一传输层,所述第一 传输层对应于第一RE集合和第二RE集合,所述第一RE集合和所述第二RE集合都包括多个RE,所述第一RE集合中的每个RE上都映射了相位跟踪参考信号PTRS,所述第二RE集合中的每个RE都不能用于映射数据;所述第一设备使用所述第二RE集合中所有RE的功率来增强所述第一RE集合中所有RE上映射的PTRS的发送功率;所述第一设备使用增强后的发送功率来发送所述PTRS。
- 一种通信设备,其特征在于,包括:处理器,用于将数据映射到多个传输层上,其中所述多个传输层包括第一传输层,所述第一传输层对应于第一RE集合和第二RE集合,所述第一RE集合和所述第二RE集合都包括多个RE,所述第一RE集合中的每个RE上都映射了相位跟踪参考信号PTRS,所述第二RE集合中的每个RE都不能用于映射数据;使用所述第二RE集合中所有RE的功率来增强所述第一RE集合中所有RE上映射的PTRS的发送功率;发送器,用于使用增强后的发送功率来发送所述PTRS。
- 一种发送功率的确定方法,其特征在于,包括:终端设备根据预设公式确定相位跟踪参考信号PTRS的发送功率;所述终端设备使用所述PTRS的发送功率向所述基站设备发送PTRS;其中所述预设公式包括:其中,所述i表示子帧编号,所述c表示小区编号,所述j表示预设值,所述P PTRS,c(i)表示所述PTRS的发送功率,所述PTRS的发送功率包括所述终端设备在子帧i对小区c发送所述PTRS的发送功率,所述P CMAX,c(i)表示所述终端设备的可用发送功率,所述P PTRS_OFFSET,c(m)表示预设调整参数,所述m=0或1,所述M PTRS,c表示所述PTRS的传输带宽,所述P O_PUSCH,c(j)表示PUSCH基准功率,所述α c(j)表示路损补偿程度,所述PL c表示所述终端设备对小区c参考信号测量得到的路损值,所述f c(i)表示所述终端设备特定的闭环功率控制。
- 一种终端设备,其特征在于,包括:处理器,用于根据预设公式确定相位跟踪参考信号PTRS的发送功率;发送器,用于使用所述PTRS的发送功率向所述基站设备发送PTRS;其中所述预设公式包括:其中,所述i表示子帧编号,所述c表示小区编号,所述j表示预设值,所述P PTRS,c(i)表示所述PTRS的发送功率,所述PTRS的发送功率包括所述终端设备在子帧i对小区c发送所述PTRS的发送功率,所述P CMAX,c(i)表示所述终端设备的可用发送功率,所述P PTRS_OFFSET,c(m)表示预设调整参数,所述m=0或1,所述M PTRS,c表示所述PTRS的传输带宽,所述P O_PUSCH,c(j)表示PUSCH基准功率,所述α c(j)表示路损补偿程度,所述PL c表示所述终端设备对小区c参考信号测量得到的路损值,所述f c(i)表示所述终端设备特定的闭环功率控制。
- 一种发送功率的确定方法,其特征在于,包括:第一设备确定相位跟踪参考信号PTRS和数据信道的相对功率比;所述第一设备基于所述PTRS和数据信道相对功率比确定所述PTRS的发送功率;所述第一设备使用所述PTRS的发送功率向第二设备发送所述PTRS;其中,在上行传输或者下行传输中,传输层数为1时,所述PTRS和数据信道的相对功率比为0dB。
- 根据权利要求43所述的方法,其特征在于,所述第一设备基于所述PTRS和数据信道相对功率比确定所述PTRS的发送功率包括:所述第一设备基于所述PTRS和数据信道相对功率比以及所述数据信道的发送功率确定 所述PTRS的发送功率。
- 根据权利要求43或44所述的方法,其特征在于,在上行传输或者下行传输中,传输层数为2时,所述PTRS和数据信道的相对功率比为3dB。
- 根据权利要求43或44所述的方法,其特征在于,在上行传输或者下行传输中,传输层数为3时,所述PTRS和数据信道的相对功率比为4.77dB。
- 根据权利要求43或44所述的方法,其特征在于,其中,在上行传输或者下行传输中,传输层数为4时,所述PTRS和数据信道的相对功率比为6dB。
- 根据权利要求43或44所述的方法,其特征在于,其中,在下行传输中,传输层数为5时,所述PTRS和数据信道的相对功率比为7dB。
- 根据权利要求43或44所述的方法,其特征在于,其中,在下行传输中,传输层数为6时,所述PTRS和数据信道的相对功率比为7.78dB。
- 一种通信装置,其特征在于,包括:处理器:用于确定相位跟踪参考信号PTRS和数据信道的相对功率比;基于所述PTRS和数据信道相对功率比确定所述PTRS的发送功率;发送器:用于使用所述PTRS的发送功率向第二设备发送所述PTRS;其中,在上行传输或者下行传输中,传输层数为1时,所述PTRS和数据信道的相对功率比为0dB。
- 根据权利要求50所述的装置,其特征在于,所述处理器具体用于基于所述PTRS和数据信道相对功率比以及所述数据信道的发送功率确定所述PTRS的发送功率。
- 根据权利要求50或51所述的装置,其特征在于,其中,在上行传输或者下行传输中,传输层数为2时,所述PTRS和数据信道的相对功率比为3dB。
- 根据权利要求50或51所述的装置,其特征在于,其中,在上行传输或者下行传输中,传输层数为3时,所述PTRS和数据信道的相对功率比为4.77dB。
- 根据权利要求50或51所述的装置,其特征在于,其中,在上行传输或者下行传输中,传输层数为4时,所述PTRS和数据信道的相对功率比为6dB。
- 根据权利要求50或51所述的装置,其特征在于,其中,在下行传输中,传输层数为5时,所述PTRS和数据信道的相对功率比为7dB。
- 根据权利要求50或51所述的装置,其特征在于,其中,在下行传输中,传输层数为6时,所述PTRS和数据信道的相对功率比为7.78dB。
- 一种计算机存储介质,其上存储有计算机程序,其特征在于,该程序被处理器执行 时实现如权利要求43-49任一项所述的方法。
- 一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行如权利要求43-49任一项所述的方法。
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