Communication method, device, system, and storage medium

Abstract

This application discloses a communication method, an apparatus and system, a chip, a chip module, and a storage medium. The terminal is configured to receive a power coefficient P, a number L of uplink transmission layers, a number Q of precoding information and phase tracking reference signal PTRS ports, and a number P of uplink transmission layers. P and L, where L is in the range of 1 to 8; receive downlink control information, the downlink control information indicating at least one of the following information: first precoding information, a first number of uplink transmission layers, and a first SRI; and determine a first P corresponding to at least one of the first precoding information, the first number of uplink transmission layers, and the first SRI based on the at least one correspondence and the downlink control information. Therefore, in a scenario where the number of uplink transmission layers is in the range of 1 to 8, the terminal and the network device may accurately determine a power coefficient of the PTRS based on the at least one correspondence and the downlink control information, and improve resource utilization.

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This application claims priority to Chinese Patent Application No. 202310149382.3, entitled "COMMUNICATION METHOD, APPARATUS, AND SYSTEM, AND STORAGE MEDIUM," filed with the State Intellectual Property Office of the People's Republic of China on February 3, 2023, which is incorporated herein by reference in its entirety.

[0002] [Technical field] This application relates to the field of communications technology, and in particular to communications methods, devices and systems, chips, chip modules, and storage media. [Background technology]

[0003] A phase tracking reference signal (PTRS) is used to perform phase tracking on a physical uplink shared channel (PUSCH) transmitted by a terminal. The PTRS is transmitted on an associated candidate demodulation reference signal (DMRS) port. However, in a scenario where a single terminal supports more than 4T (transmission) and / or more than four layers of transmission, no corresponding solution currently exists for determining the power of the PTRS when the PTRS is transmitted. Summary of the Invention

[0004] This application provides a communication method, device and system, and storage medium for accurately determining the power of a PTRS.

[0005] According to a first aspect, there is provided a communication method, comprising: determining a power coefficient P, a number L of uplink transmission layers, a number Q of precoding information and phase tracking reference signal PTRS ports, Pwhere P is a power ratio between the PTRS and the physical uplink shared channel per resource element per layer, and the number of uplink transmission layers ranges from 1 to 8; receiving downlink control information, where the downlink control information indicates at least one of the following information: first precoding information, the number of the first uplink transmission layers, and the first SRI; and determining a first P corresponding to at least one of the first precoding information, the number of the first uplink transmission layers, and the first SRI based on the at least one correspondence and the downlink control information.

[0006] P may alternatively be understood as the power ratio between the data signal carried on the physical uplink shared channel and the PTRS reference signal, the power ratio between the uplink data signal and the PTRS reference signal, the power ratio between the PTRS and the physical uplink shared channel, the power ratio between the PTRS reference signal and the data signal carried on the physical uplink shared channel, or the power ratio between the PTRS reference signal and the uplink data signal.

[0007] In this aspect, in a scenario where the number of uplink transmission layers ranges from 1 to 8, the terminal may accurately determine the power coefficient of the PTRS based on at least one correspondence relationship and downlink control information, so that the terminal can fully utilize power resources, ensure the reliability of PTRS transmission, and improve channel estimation and phase noise detection capabilities.

[0008] In a possible implementation, the method further comprises transmitting a PRTS signal through at least one PTRS port based on the first P.

[0009] According to a second aspect, there is provided a communication method, comprising: determining a power coefficient P, a number L of uplink transmission layers, a number Q of precoding information and phase tracking reference signal PTRS ports, Pwhere P is a power ratio between the PTRS and the physical uplink shared channel per resource element per layer, and the number of uplink transmission layers ranges from 1 to 8; transmitting downlink control information, the downlink control information indicating at least one of the following information: first precoding information, the number of the first uplink transmission layers, and the first SRI; and determining a first P corresponding to at least one of the first precoding information, the number of the first uplink transmission layers, and the first SRI based on the at least one correspondence and the downlink control information.

[0010] P may alternatively be understood as the power ratio between the data signal carried on the physical uplink shared channel and the PTRS reference signal, the power ratio between the uplink data signal and the PTRS reference signal, the power ratio between the PTRS and the physical uplink shared channel, the power ratio between the PTRS reference signal and the data signal carried on the physical uplink shared channel, or the power ratio between the PTRS reference signal and the uplink data signal.

[0011] When the number of PUSCH antenna ports is 8, the number of uplink transmission layers ranges from 1 to 4. Alternatively, when the number of PUSCH antenna ports is 8, the number of uplink transmission layers ranges from 1 to 8.

[0012] In this aspect, in a scenario where the number of uplink transmission layers ranges from 1 to 8, the network device may accurately determine the power coefficient of the PTRS based on at least one correspondence relationship and downlink control information, thereby improving resource utilization.

[0013] In a possible implementation, the method further comprises receiving a PRTS signal through at least one PTRS port based on the first P.

[0014] According to a third aspect, there is provided a communication device. The communication device may implement the method according to the first aspect. For example, the communication device may be a terminal or a chip system within a terminal. The method may be implemented by software, hardware, or hardware executing corresponding software.

[0015] In a possible implementation, the device includes a transceiver unit and a processing unit, which is configured to receive a power coefficient P, a number L of uplink transmission layers, a number Q of precoding information and phase tracking reference signal PTRS ports, and P and P, where P is a power ratio between the PTRS and the physical uplink shared channel per resource element per layer, and the number of uplink transmission layers ranges from 1 to 8. The transceiver unit is configured to receive downlink control information, where the downlink control information indicates at least one of the following information: first precoding information, the number of first uplink transmission layers, and a first SRI. The processing unit is further configured to determine a first P corresponding to at least one of the first precoding information, the number of first uplink transmission layers, and the first SRI based on the at least one correspondence and the downlink control information.

[0016] Optionally, the transceiver unit is further configured to transmit a PRTS signal through the at least one PTRS port based on the first P.

[0017] According to a fourth aspect, there is provided a communication device. The communication device may implement the method according to the second aspect. For example, the communication device may be a network device or a chip system within a network device. The method may be implemented by software, hardware, or hardware executing corresponding software.

[0018] In a possible implementation, the device includes a transceiver unit and a processing unit, which is configured to receive a power coefficient P, a number L of uplink transmission layers, a number Q of precoding information and phase tracking reference signal PTRS ports, and P and P, where P is a power ratio between the PTRS and the physical uplink shared channel per resource element per layer, and the number of uplink transmission layers ranges from 1 to 8. The transceiver unit is configured to transmit downlink control information, where the downlink control information indicates at least one of the following information: first precoding information, the number of first uplink transmission layers, and a first SRI. The processing unit is further configured to determine a first P corresponding to at least one of the first precoding information, the number of first uplink transmission layers, and the first SRI based on the at least one correspondence and the downlink control information.

[0019] Optionally, the transceiver unit is further configured to receive a PRTS signal through the at least one PTRS port based on the first P.

[0020] With reference to the third or fourth aspect, in another possible implementation manner, the communication device includes a processor coupled to a memory. The processor is configured to support the device in executing corresponding functions in the above-mentioned communication method. The memory is configured to be coupled to the processor. The memory stores computer programs (or computer-executable instructions) and / or data required for the device. Optionally, the communication device may further include a communication interface configured to support communication between the device and other network elements, e.g., transmission or reception of data and / or signals. For example, the communication interface may be a transceiver, a circuit, a bus, a module, or another type of communication interface. Optionally, the memory may be located inside the communication device and integrated with the processor, or may be located outside the communication device.

[0021] Referring to the third or fourth aspect, in yet another possible implementation, the communication device includes a processor and a transceiver device. The processor is coupled to the transceiver device. The processor is configured to execute a computer program or instructions for controlling the transceiver device to receive and transmit information. When the processor executes the computer program or instructions, the processor is further configured to implement the above method by using a logic circuit or by executing code instructions. The transceiver device may be a transceiver, a transceiver circuit, an interface circuit, or an input / output interface, and is configured to receive a signal from a communication device other than the communication device and transmit the signal to the processor, or to transmit a signal from the processor to a communication device other than the communication device. When the communication device is a chip, the transceiver device is a transceiver circuit or an input / output interface.

[0022] When the communication device is a chip, the transmission unit may be an output unit, such as an output circuit or a communication interface, and the reception unit may be an input unit, such as an input circuit or a communication interface. When the communication device is a terminal, the transmission unit may be a transmitter or a transmitter machine, and the reception unit may be a receiver or a receiver machine.

[0023] Referring to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, in the same PUSCH transmission mode, when L1 < L2 is satisfied, P1 ≤ P2, where L1 and L2 correspond to the number of different uplink transmission layers, P1 is the power coefficient corresponding to L1, and P2 is the power coefficient corresponding to L2. The PUSCH transmission mode includes at least one of the following: full coherent transmission mode, partial coherent transmission mode, non-coherent transmission mode, and non-codebook-based transmission mode. The first precoding information corresponds to at least one PUSCH transmission mode.

[0024] In this implementation, in the same PUSCH transmission mode, a larger number of uplink transmission layers means that the power coefficients corresponding to the larger uplink transmission layers can be equal to or greater than the power coefficients corresponding to the smaller uplink transmission layers, thereby more accurately determining the power coefficients of the PTRS and improving resource utilization.

[0025] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, in any one of the partially coherent transmission mode, the non-coherent transmission mode and the non-codebook-based transmission mode, the same PTRS port corresponds to a different P for the same L and different numbers of PTRS ports.

[0026] In this implementation method, in any one of the partially coherent transmission mode, the non-coherent transmission mode, and the non-codebook-based transmission mode, for the same number of uplink transmission layers, the number of PTRS ports configured by the network device may be less than or equal to the maximum number of supported PTRS ports, and for different numbers of PTRS ports, the same PTRS port corresponds to different power coefficients.

[0027] For example, for the same L, the number of PTRS ports includes at least a first value and a second value, where the first value corresponds to a first power coefficient and the second value corresponds to a second power coefficient.

[0028] For example, the number of PTRS ports further includes a third value and / or a fourth value, the third value corresponding to the third power coefficient and the fourth value corresponding to the fourth power coefficient.

[0029] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, in a partially coherent transmission mode, different PTRS ports correspond to different P for the same L.

[0030] In this implementation, in the partially coherent transmission mode, for the same L, different PTRS ports are associated with different numbers of uplink transmission layers, i.e., different PTRS ports correspond to different numbers of uplink transmission layers. Furthermore, since the power coefficient protected in this application is mainly the power ratio between the PUSCH and the PTRS, it can be understood that different PTRS ports may correspond to different power values ​​since different PTRS ports correspond to different numbers of PUSCH transmission layers. It can also be understood that the maximum transmit power corresponding to one PTRS port is the same as the total power of uplink data signals transmitted by all uplink transmission antennas (PUSCH antenna ports) corresponding to the PTRS port, and that the uplink data signals may be carried on a physical uplink shared channel. Therefore, different PTRS ports correspond to different P.

[0031] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, the PTRS port includes a first PTRS port and a second PTRS port. The first PTRS port is associated with a first demodulation reference signal (DMRS) port. The first PTRS port corresponds to a first power coefficient. The second PTRS port is associated with a second DMRS port. The second PTRS port corresponds to a second power coefficient.

[0032] In this implementation, different PTRS ports may be located in different Ng and associated with different DMRS ports, and may correspond to different power coefficients.

[0033] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, when the value of L is 2, 4, 6 or 8, the value of P is Q P When the value of L is 3, 5, or 7, the value of P is Q Pand associated with the PTRS port.

[0034] In this implementation, for example, when Ng=2 and the maximum number of supported PTRS ports is 2, the value of P is set to Q according to the number of different uplink transmission layers. P Alternatively, the value of P may be related to Q P and PTRS ports, i.e., different Q P , and different PTRS ports may correspond to different values ​​of P.

[0035] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, when the value of L is 2, 3 or 4, the value of P is Q P When the value of L is 6, the value of P is Q P and associated with the PTRS port. When the value of L is 5 or 7, the value of P is Q P , associated with a PTRS port and a DMRS port associated with the PTRS port.

[0036] In this implementation, for example, when Ng=4 and the maximum number of supported PTRS ports is 2, the value of P is Q corresponding to the number of different uplink transmission layers. P and the value of P is related to Q P and PTRS ports, i.e., different Q P , and different PTRS ports may correspond to different values ​​of P, or the value of P may correspond to Q P , associated with the PTRS port and the DMRS port associated with the PTRS port, i.e., different Q P and correspond to different PTRS ports, which may be associated with different DMRS ports (or may be located in different Ng) and correspond to different values ​​of P.

[0037] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, during the partially coherent transmission, the value of L is 2 and the value of P is P L2 The value of L is 3 and the value of P is P L3 The value of L is 4 and the value of P is P L4 The value of L is 5 and the value of P is P L5 The value of L is 6 and the value of P is P L6 The value of L is 7 and the value of P is P L7 P L2 =P L3 , P L4 =P L5 And P L6 =P L7 P L2、 P L3、 P L4 , P L5 , P L6 and P L7 represent the power coefficients used when L is 2, 3, 4, 5, 6 and 7, respectively.

[0038] In this implementation, for example, when the maximum number of supported PTRS ports is 2, L2 =P L3 , P L4 =P L5 And P L6 =P L7 In this case, the number of antenna coherence groups Ng may be equal to 2 or 4.

[0039] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, L2 <P L4 <P L6 is.

[0040] In this implementation, for example, when the maximum number of supported PTRS ports is 2, a larger number of uplink transmission layers means that the power coefficients corresponding to the larger uplink transmission layers may be equal to or greater than the power coefficients corresponding to the smaller uplink transmission layers. Therefore, the power coefficients of the PTRSs are determined more accurately, and resource utilization is improved. Here, the number of antenna coherence groups Ng may be equal to 2 or 4.

[0041] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, the value of L is 1 and the value of P is P L1 The value of L is 8 and the value of P is P L8 P L1 <P L2< P L4 <P L6 <P L8 is.

[0042] In this implementation, for example, when the maximum number of supported PTRS ports is 2, a larger number of uplink transmission layers means that the power coefficients corresponding to the larger uplink transmission layers may be equal to or greater than the power coefficients corresponding to the smaller uplink transmission layers. Therefore, the power coefficients of the PTRSs are determined more accurately, and resource utilization is improved. Here, the number of antenna coherence groups Ng may be equal to 2 or 4.

[0043] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, L2 The value of is 3Q P -3 and P L4 The value of is 3Q P and P L6 The value of is 3Q P It is +1.77.

[0044] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, P When =1, P L6 = 4.77 dB. P When =2, P L6 =7.78dB.

[0045] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, L8 The value of is 3Q P It's +3.

[0046] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, during the partially coherent transmission, the value of L is 2 and the value of P is P' L2 The value of L is 3 and the value of P is P' L3 The value of L is 4 and the value of P is P' L4 The value of L is 5 and the value of P is P' L5で The value of L is 6 and the value of P is P' L6 The value of L is 7 and the value of P is P' L7 P' L2 =P' L3 =P' L4 =P' L5 =P' L6 =P' L7 P' L2 , P' L3 , P' L4 , P' L5 , P' L6 and P' L7 represent the power coefficients used when L is 2, 3, 4, 5, 6 and 7, respectively.

[0047] In this implementation, for example, when Ng=4, the maximum number of supported PTRS ports is 2, and the number of uplink transmission layers ranges from 2 to 7, the corresponding power coefficients are the same, and as a result, the power coefficients are determined more accurately.

[0048] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, the value of L is 1 and the value of P is P' L1 The value of L is 8 and the value of P is P' L8 P' L1 <P' L2< <P' L8 is.

[0049] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, P' L2 The value of is 3Q P It is -3.

[0050] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, P' L8 The value of is 3Q P is.

[0051] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, during the partially coherent transmission, the value of L is 4 and the value of P is P'' L4 The value of L is 5 and the value of P is P'' L5 The value of L is 6 and the value of P is P'' L6 The value of L is 7 and the value of P is P'' L7 The value of L is 8 and the value of P is P'' L8 P'' L4 =P'' L5 =P'' L6 =P'' L7 =P'' L8 is.

[0052] In this implementation, for example, when Ng=4, the maximum number of supported PTRS ports is 4, and the number of uplink transmission layers ranges from 4 to 8, the corresponding power coefficients are the same, and as a result, the power coefficients are determined more accurately.

[0053] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, L4 The value of Q is as follows: P When =1, P'' L4 = 0dB. Q P When = 2, P'' L4 = 3dB. Q P = 3, P'' L4 = 4.77 dB. P = 4, P'' L4 =6dB.

[0054] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, during the partially coherent transmission, the value of L is 2 and the value of P is P'' L2 P'' L2 The value of is 3Q P It is -3.

[0055] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in still another possible implementation, during the partially coherent transmission, the value of L is 3 and the value of P″ is P L3 P'' L3 The value of Q is as follows: P When =1, P'' L3 = 0dB. Q P When = 2, P'' L3 = 3dB. Q P = 3, P'' L3 =4.77dB.

[0056] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in still another possible implementation, the value of P is P The number L of uplink transmission layers corresponding to one PTRS port among the PTRS ports P , and the number of uplink transmission layers corresponding to one antenna coherence group L Ng is associated with at least one of the following:

[0057] In this implementation, a correspondence relationship between the power coefficient and the number of uplink transmission layers, precoding information, and the number of PTRS ports is determined based on at least one of the number of uplink transmission layers, precoding information, and SRI. Then, the specific value of the power coefficient is determined based on the number L of uplink transmission layers corresponding to a specific RPTS port. P , and the number of uplink transmission layers corresponding to one antenna coherence group L Ng Therefore, the power coefficients are more accurately determined.

[0058] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, the value of P is associated with a first parameter, and the first parameter is Q P and L P or the first parameter is Q P and L Ng is the product of

[0059] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in still another possible implementation, the value is P=10*log10(Q p *L p ) or P=10*log10(Q p *L Ng ) is satisfied.

[0060] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, in a fully coherent transmission mode, the value of P is related to L.

[0061] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, p =1, and the value of P is P=10*log 10 Satisfy (L).

[0062] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, when L is 1, P is 0 dB. When L is 2, P is 3 dB. When L is 3, P is 4.77 dB. When L is 4, P is 6 dB. When L is 5, P is 6.99 dB. When L is 6, P is 7.78 dB. When L is 7, P is 8.45 dB. When L is 8, P is 9 dB.

[0063] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, in a partially coherent transmission mode, when the first parameter is 1, P is 0 dB; when the first parameter is 2, P is 3 dB; when the first parameter is 3, P is 4.77 dB; when the first parameter is 4, P is 6 dB; when the first parameter is 5, P is 7 dB; when the first parameter is 6, P is 7.78 dB; when the first parameter is 7, P is 8.45 dB; and when the first parameter is 8, P is 9 dB.

[0064] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in still another possible implementation, in a non-coherent transmission mode, the value of P is Q Pand the value of P is given by the formula P=10*log10(Q p ) is satisfied.

[0065] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, p =1 or L Ng =1, and the value is P=10*log 10 (Q p ) is satisfied.

[0066] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, P When is 1, P is 0 dB. P When is 2, P is 3 dB. Q P When is 3, P is 4.77 dB. P When is 4, P is 6 dB.

[0067] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, the number of PUSCH antenna ports is in the range of 5 to 8, and the number of uplink transmission layers is in the range of 1 to 4.

[0068] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in yet another possible implementation, the number of PTRS ports is greater than the number N of supported antenna coherence groups. g The following is the result.

[0069] With reference to any one of the first to fourth aspects or any one of the possible implementations of the first to fourth aspects, in still another possible implementation, the number of uplink antennas is 8, and Q P and N g The correspondence between N and N includes at least one of the following: g When is 1, QP is 1. N g When is 2, Q P is 1. N g When is 2, Q P is 2. N g When is 4, Q P is 2. N g When is 4, Q P is 4.

[0070] According to a fifth aspect, there is provided a communication method, including a method according to the first aspect or any one of the implementations of the first aspect, and a method according to the second aspect or any one of the implementations of the second aspect.

[0071] According to a sixth aspect, there is provided a communication system, the communication system including a communication device according to the third aspect and a communication device according to the fourth aspect.

[0072] According to a seventh aspect, there is provided a computer-readable storage medium storing a computer program or instructions which, when executed by a processor, perform a method according to the first aspect, the second aspect, or any one of the implementations of the first or second aspect.

[0073] According to an eighth aspect, there is provided a computer program product which, when executed on a computing device, performs a method according to the first aspect, the second aspect, or any one of the implementations of the first or second aspect.

[0074] According to a ninth aspect, there is provided a circuit. The circuit is coupled to a memory. The circuit is configured to perform the method according to the first aspect, the second aspect, or any one of the implementations of the first or second aspect. The circuit may include a chip circuit. [Brief explanation of the drawings]

[0075] [Figure 1]1 is a diagram of the architecture of a communication system to which an embodiment of the present application is applied; [Figure 2] FIG. 10 is an exemplary diagram of associating PTRS ports with DMRS ports according to an embodiment of the present application. [Figure 3] 1 is a schematic flowchart of a communication method according to an embodiment of the present application; [Figure 4a] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4b] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4c] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4d] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4e] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4f] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4g] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4h] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4i] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4j] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4k] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4l] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4m] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 4n] FIG. 1 is an exemplary diagram of an 8T8 layer precoding matrix according to an embodiment of the present application. [Figure 5a] FIG. 10 is an exemplary diagram of power coefficients according to an embodiment of the present application. [Figure 5b] FIG. 10 is an exemplary diagram of power coefficients according to an embodiment of the present application. [Figure 5c] FIG. 10 is an exemplary diagram of power coefficients according to an embodiment of the present application. [Figure 5d] FIG. 10 is an exemplary diagram of power coefficients according to an embodiment of the present application. [Figure 5e] FIG. 10 is an exemplary diagram of power coefficients according to an embodiment of the present application. [Figure 5f] FIG. 10 is an exemplary diagram of power coefficients according to an embodiment of the present application. [Figure 5g] FIG. 10 is an exemplary diagram of power coefficients according to an embodiment of the present application. [Figure 6] 1 is a diagram of the structure of a communication device according to an embodiment of the present application; [Figure 7] FIG. 10 is a diagram of the structure of another communication device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0076] Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0077] Embodiments of this application may be applied to various communication systems, such as long term evolution (LTE) systems, LTE time division duplex (TDD), fifth generation (5G) communication systems, and future sixth generation (6G) communication systems.

[0078] FIG. 1 is a diagram of the architecture of a communication system to which an embodiment of this application is applied. As shown in FIG. 1, the communication system 1000 includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 may further include the Internet 300. The radio access network 100 may include at least one radio access network device (e.g., 110a and 110b in FIG. 1) and may further include at least one terminal (e.g., 120a to 120j in FIG. 1). The terminal is connected to the radio access network device in a wireless manner, and the radio access network device is connected to the core network in a wireless or wired manner. The core network device and the radio access network device may be separate and distinct physical devices, and the functions of the core network device and the logical functions of the radio access network device may be integrated into the same physical device, or some functions of the core network device and some functions of the radio access network device may be integrated into one physical device. Wired or wireless connections may be used for connections between terminals and between radio access network devices. FIG. 1 is merely a diagram. The communication system may further include other network devices, for example, wireless relay devices and wireless backhaul devices not shown in FIG.

[0079] The radio access network device may be a base station, an evolved base station (eNodeB), a transmission reception point (TRP), a next generation base station (gNB) in a fifth generation (5G) mobile communication system, a next generation base station in a sixth generation (6G) mobile communication system, a base station in a future mobile communication system, an access node in a Wi-Fi system, etc., or may be a module or unit completing some functions of a base station, for example, a central unit (CU) or a distributed unit (DU). The radio access network device may be a macro base station (e.g., 110a in FIG. 1 ), a micro base station or an indoor base station (e.g., 110b in FIG. 1 ), or may be a relay node, a donor node, etc. The specific technology and the specific device type used by the radio access network device are not limited in the embodiments of this application. For ease of explanation, the following description is provided by using an example in which a base station is used as the radio access network device.

[0080] A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals may be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), internet of things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, and smart city. A terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver functionality, a wearable device, a vehicle, an unmanned aerial vehicle, a helicopter, an airplane, a ship, a robot, a robotic arm, a smart home device, etc. The specific technology and the specific device type used by the terminal are not limited to the embodiments of this application.

[0081] The base station and the terminal may be fixed or mobile. The base station and the terminal may be located on land, on water, or on an airplane, a balloon, or a satellite in the air, including an indoor device, an outdoor device, a handheld device, or a vehicle-mounted device. The application scenario of the base station and the terminal is not limited in the embodiments of this application.

[0082] The roles of a base station and a terminal may be relative. For example, helicopter or unmanned aerial vehicle 120i in FIG. 1 may be configured as a mobile base station. To terminal 120j accessing wireless access network 100 via 120i, terminal 120i is a base station. However, to base station 110a, 120i is a terminal; that is, 110a and 120i communicate with each other by using a wireless air interface protocol. Obviously, 110a and 120i may alternatively communicate with each other based on an interface protocol between base stations. In this case, 120i is also a base station to 110a. Therefore, both base stations and terminals may be collectively referred to as communication devices, and 110a and 110b in FIG. 1 may each be referred to as communication devices having base station functions, and 120a to 120j in FIG. 1 may each be referred to as communication devices having terminal functions.

[0083] Communication between a base station and a terminal, between base stations, or between terminals may be performed using licensed spectrum, unlicensed spectrum, or both licensed and unlicensed spectrum. Communication may be performed using spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or both spectrum below 6 GHz and above 6 GHz. Spectral resources for wireless communication are not limited in the embodiments of this application.

[0084] In the embodiments of this application, the functions of the base station may be performed by a module (e.g., a chip) in the base station, or may be performed by a control subsystem including the functions of the base station. The control subsystem including the functions of the base station in this specification may be a control center in the above application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may be performed by a module (e.g., a chip or a modem) in the terminal, or may be performed by a device including the functions of the terminal.

[0085] In this application, a base station transmits downlink signals or downlink information to a terminal, where the downlink information is carried on a downlink channel, and the terminal transmits uplink signals or uplink information to the base station, where the uplink information is carried on an uplink channel. To communicate with the base station, the terminal establishes a wireless connection to a cell controlled by the base station. The cell that establishes a wireless connection with the terminal is called the serving cell of the terminal. When communicating with the serving cell, the terminal is further interfered with by signals from neighboring cells.

[0086] In the embodiments of this application, the time-domain symbols may be orthogonal frequency division multiplexing (OFDM) symbols or Discrete Fourier transform-spread-OFDM (DFT-s-OFDM) symbols. Unless otherwise specified, the symbols in the embodiments of this application are time-domain symbols.

[0087] It can be understood that in the embodiments of this application, a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), and a physical uplink shared channel (PUSCH) are merely examples of a downlink data channel, a downlink control channel, and an uplink data channel, respectively. In different systems and different scenarios, the data channel and the control channel may have different names, which is not limited in the embodiments of this application.

[0088] Embodiments of this application may include the following concepts.

[0089] (1) Antenna Coherence Group

[0090] Based on the concept of antenna coherence groups, several codebook types or transmission modes may be classified as follows: Full coherent: means that all antenna ports can transmit data of the same layer. Partial coherent: means that several antenna ports can transmit data of the same layer. Non-coherent: means that each antenna port can transmit data for only one layer.

[0091] The following Table 1 is used as an example. A transmission precoding matrix index (TPMI) set corresponds to the transmission of four uplink layers using four transmit antennas of one UE (i.e., four transmissions and four layers). A precoding matrix corresponding to precoding matrix 0 (i.e., TPMI is 0) may be understood as non-coherent transmission. Precoding matrices corresponding to precoding matrix 1 (i.e., TPMI is 1) and precoding matrix 2 (i.e., TPMI is 2) may be understood as partially coherent transmission. Precoding matrices corresponding to precoding matrix 3 (i.e., TPMI is 3) and precoding matrix 4 (i.e., TPMI is 4) may be understood as fully coherent transmission. In this example, for a 4-transmission 4-layer uplink precoding matrix, it can be intuitively understood that one row of the precoding matrix corresponds to one PUSCH antenna port / sounding reference signal (SRS) port, and one column of the precoding matrix corresponds to one uplink transmission layer (which can also be understood as one DMRS port). When TPMI is 0, each PUSCH is transmitted in only one layer. When TPMI is 1 or 2, each PUSCH may be transmitted in two layers. When TPMI is 3 or 4, each PUSCH may be transmitted in four layers. [Table 1]

[0092] (2) PTRS-DMRS association relationship

[0093] An association relationship exists between a PTRS port and a DMRS port. The time-frequency resource location at which a PTRS signal is transmitted on a PTRS port may be determined based on the associated DMRS port. The base sequence corresponding to a PTRS signal is the same as that corresponding to a DMRS signal. For example, TPMI=0 in Table 1 is used as an example. If four DMRS ports are {0, 1, 12, 13}, the precoding matrix corresponds to one PTRS port, and the PTRS port is associated with DMRS port 0, the PTRS is transmitted on DMRS port 0.

[0094] A phase tracking reference signal-demodulation reference signal association (PTRS-DMRS association) field in the DCI may indicate the PTRS-DMRS association relationship. There are two possibilities for the indication: 0 bit or 2 bits. [Table 2]

[0095] Table 2 shows an example of a PTRS-DMRS association relationship between uplink PTRS Port 0 and PTRS Port 1 and an example of an association relationship indication method. In practice, the PTRS-DMRS association relationship may not be limited to the above case, and the association relationship indication method is not limited thereto. This is merely an example in this specification.

[0096] The most significant bit (MSB) of the PTRS-DMRS association field indicates the DMRS port that shares PTRS port 0, and the least significant bit (LSB) of the PTRS-DMRS association field indicates the DMRS port that shares PTRS port 1.

[0097] Alternatively, the MSB of the PTRS-DMRS association field may indicate the DMRS port that shares PTRS port 1, and the LSB of the PTRS-DMRS association field may indicate the DMRS port that shares PTRS port 0.

[0098] (3) ρ for each resource element (RE) for each layer PTRS PUSCH

[0099] PUSCH to PTRS power coefficient ρ per RE per layer PTRS PUSCH is the ratio of the power of one PUSCH transmission layer to the power of the PTRS port per RE per layer.

[0100] The power coefficients may be in the linear domain, for example, the transmit power of the uplink transmission layer corresponding to one PTRS port is 1 / 4 of the total power of all uplink transmission layers, which can be understood as the power of one PUSCH transmission layer being four times the power of one PTRS port in the linear domain.

[0101] Alternatively, the power coefficients may be in the dB domain, for example, the transmit power of the uplink transmission layer corresponding to one PTRS port is ¼ of the total power of all uplink transmission layers, which can be understood as the power of one PUSCH transmission layer being 6 dB relative to the power of one PTRS port in the dB domain.

[0102] Existing protocols specify a PUSCH to PTRS power factor per RE per layer for cases of 4T or less and 4 layers or less.

[0103] Q p = {1, 2} PTRS ports are scheduled for the UE in the uplink, and the number of uplink scheduling layers / the number of PUSCH layers is n layerPUSCH When

[0104] (1) If the higher layer parameter ptrs-Power (carried in higher layer signaling: Phase Tracking Reference Signal Uplink Configuration (PTRS-UplinkConfig)) is configured for the UE, the PUSCH-to-PTRS power factor ρ per RE per layer PTRS PUSCH is ρ PTRS PUSCH =-α PTRS PUSCH is obtained according to α PTRS PUSCH is obtained according to Table 3 below. The upper layer parameter ptrs-Power determines which row in Table 3 is selected (corresponding to different power coefficient assumptions). The PTRS coefficient factor ρ PTRS PUSCH teeth,

number

[0105] (2) When the ptrs-Power field is not present in the upper layer configuration PTRS-UplinkConfig or the PUSCH is transmitted based on a non-codebook, the terminal shall assume that ptrs-Power is set to the state "00". [Table 3]

[0106] For each particular value in the table, the method for determining the value conforms to certain design rules, a detailed description of which is provided below.

[0107] First, for the second row, when ptrs-Power is set to state "01", it can be seen that the above power coefficients are related only to the number of uplink layers. In this case, it can be assumed that only one PTRS port exists. As shown in Table 3, for different numbers of uplink transmission layers, the power coefficients can be obtained through calculation according to P = 10 * log10(L), where L is the number of uplink transmission layers. It can be seen that the formula is a dB-based multiplicative relationship between the number of uplink transmission layers and the power of the PTRS actually transmitted in the uplink.

[0108] Specifically, for a one-layer uplink PUSCH transmission, only one uplink data layer is included, and the number of PTRS ports is also 1. In this case, the transmit power of the uplink transmission layer corresponding to one PTRS port is the same as the total power of all uplink transmission layers. This can be understood as the power of one PUSCH transmission layer being 1 times the power of one PTRS port in the linear domain, or 0 dB in the dB domain (which may be obtained through calculation according to the above formula), i.e., the corresponding value in the table is 0.

[0109] For a two-layer uplink PUSCH transmission, two uplink data layers are included, and the number of PTRS ports is 1. In this case, the transmit power of the uplink transmission layer corresponding to one PTRS port is 1 / 2 of the total power of all uplink transmission layers. This can be understood as the power of one PUSCH transmission layer being twice the power of one PTRS port in the linear domain, or 3 dB in the dB domain (which may be obtained through calculation according to the above formula), i.e., the corresponding value in the table is 3.

[0110] For a three-layer uplink PUSCH transmission, three uplink data layers are included, and the number of PTRS ports is 1. In this case, the transmit power of the uplink transmission layer corresponding to one PTRS port is 1 / 3 of the total power of all uplink transmission layers. This can be understood as the power of one PUSCH transmission layer being three times the power of one PTRS port in the linear domain, or 4.77 dB in the dB domain (which may be obtained through calculation according to the above formula), i.e., the corresponding value in the table is 4.77.

[0111] For a four-layer uplink PUSCH transmission, four uplink data layers are included, and the number of PTRS ports is 1. In this case, the transmit power of the uplink transmission layer corresponding to one PTRS port is 1 / 4 of the total power of all uplink transmission layers. This can be understood as the power of one PUSCH transmission layer being four times the power of one PTRS port in the linear domain, or 6 dB in the dB domain (which may be obtained through calculation according to the above formula), i.e., the corresponding value in the table is 6.

[0112] Returning to the first row, the case where ptrs-Power is set to state "00" is more complicated. In this case, different codebook formats and different numbers of PTRS ports are involved, so an understanding needs to be made corresponding to each value in the table. Explanations are provided separately in this specification based on different codebook formats.

[0113] First, for fully coherent codebook-based transmission, all PUSCH antenna ports correspond to the same antenna coherence group, and each PUSCH antenna port may perform full-power transmission independently. This is similar to the case when the ptrs-Power field is set to state "01." It can be seen that the above power coefficients are related only to the number of uplink transmission layers. In this case, it can be assumed that only one PTRS port exists. As shown in Table 3, for different numbers of uplink transmission layers, the power coefficients can be obtained through calculation according to P = 10 * log10(L), where L is the number of uplink transmission layers. It can be seen that the formula is a dB-based multiplicative relationship between the number of uplink transmission layers and the power of the PTRS actually transmitted in the uplink. It can be seen that the specific PUSCH-to-PTRS power coefficients corresponding to layers 1, 2, 3, and 4 in Table 2 are the same as those obtained when ptrs-Power is set to state "01."

[0114] Second, for non-coherent codebook-based transmission, when ptrs-Power is set to state "00", the power of each PUSCH port cannot be increased to the total transmit power of the UE (it can be understood herein that when ptrs-Power is set to state "01", the power of each PUSCH port may be increased to the total transmit power, which is also one of the most important differences between state "00" and state "01". The other main difference is that the assumptions about the number of PTRS ports are different: in state "01", the number of PTRS ports is 1, and the number of PTRS ports corresponding to state "00" is assumed to be a variable value, i.e., 1 or 2), and PTRS transmission can be performed based on the power corresponding to only one PUSCH port.

[0115] A method for increasing the power of a PTRS port is described herein by using a non-coherent codebook-based transmission scenario, a row of "00" in the PTRS power algorithm and an uplink rank of 4 as an example.

[0116] In this case, for a scenario where multiple PTRS ports exist, the following Table 4 is used as an example. The vertical axis corresponds to the subcarrier identifier, and the horizontal axis corresponds to the number of consecutive OFDM symbols for the PUSCH. The blank positions can be understood as positions where uplink data signals are transmitted. It is assumed that the precoding for PUSCH transmission is the precoding matrix corresponding to TPMI=0 in Table 1. It is also assumed that the DMRS port indications corresponding to the four uplink transmission layers are {0, 1, 12, 13}, where 12 and 13 are newly added DMRS ports in the protocol. For the DMRS port indication method, please refer to the prior art.

[0117] 2 is an exemplary diagram of associating PTRS ports with DMRS ports according to an embodiment of this application. It can be seen that PUSCH port 0 and PUSCH port 2 share PTRS port 0, and PUSCH port 1 and PUSCH port 3 share PTRS port 1. Assume that when ptrs-Power is set to state '00', the value of the 2-bit indication indicating the PTRS-DMRS association relationship is '01' (corresponding to Table 4 below). In this scenario, in Table 4, PTRSp0 corresponding to the first RE (subcarrier 6# and symbol 3#) transmits a PTRS through PUSCH port 0, and the precoding and sequence of PTRSp0 are determined based on the precoding and sequence corresponding to DMRS port 0. In Table 4, PTRSp1 corresponding to the second RE (subcarrier 7# and symbol 3#) transmits a PTRS through PUSCH port 3, and the precoding and sequence of PTRSp1 are determined based on the precoding and sequence corresponding to DMRS port 13. In this scenario, it can be seen that DMRS Port 0 and DMRS Port 12 share PTRSp0, and DMRS Port 1 and DMRS Port 13 share PTRSp1. The DMRS Port associated with the PTRS is determined based on the indicated PTRS-DMRS association relationship, and the PTRS is transmitted based on the sequence and time-frequency resource corresponding to the DMRS Port and the TPMI corresponding to the DMRS Port.

[0118] In this case, multiple PTRS ports are frequency-division multiplexed on the same OFDM symbol (in Table 4, PTRSp0 and PTRSp1 are frequency-division multiplexed on symbol 3#), and PUSCH is not transmitted on subcarriers occupied by the PTRS ports (in Table 4, PUSCH is not transmitted on subcarrier 6# and subcarrier 7#). As a result, the same PUSCH port, such as PUSCH port 0 in this example, transmits no data on the first RE and no data on the second RE. Therefore, the transmit power of PUSCH port 0 on the second RE may be "borrowed" to increase the power for the transmission of PTRSp0. This also doubles the PUSCH-to-PTRS power factor per RE per layer, and Q p When the value of is 2 in Table 3, it can be understood as corresponding to an increase of 3(3*2-3) dB. Similarly, in this case, the power increase factor of PTRS port 1 is also 3 dB.

[0119] Based on this understanding, a method for determining a power coefficient of a PTRS in a partially coherent codebook-based transmission scenario can be correspondingly understood. [Table 4] TIFF2026504474000007.tif91170

[0120] However, the prior art does not support PUSCH transmission capability for more than 4T and / or more than four layers in the uplink, and therefore, there is currently no corresponding solution for how to determine the transmission power of the PTRS, specifically, how to determine the PUSCH-to-PTRS power factor per RE per layer, in scenarios of more than 4T and / or more than four layers.

[0121] In consideration of this, this application provides a communication solution, in which a terminal determines a power coefficient P, a number L of uplink transmission layers, a number Q of precoding information and phase tracking reference signal PTRS ports, Pand L, where L is in the range of 1 to 8; receive downlink control information, the downlink control information indicating at least one of the following information: first precoding information, a first number of uplink transmission layers, and a first SRI; and determine a first P corresponding to at least one of the first precoding information, the first number of uplink transmission layers, and the first SRI based on the at least one correspondence and the downlink control information. Thus, in a scenario where the number of uplink transmission layers is in the range of 1 to 8, the terminal and the network device may accurately determine a power coefficient of the PTRS based on the at least one correspondence and the downlink control information, and improve resource utilization.

[0122] 3 is a schematic flowchart of a communication method according to an embodiment of the present application. For example, the method may include the following steps:

[0123] S301a: The terminal determines a power coefficient P, the number L of uplink transmission layers, precoding information, and the number Q of PTRS ports. P where P is the power ratio between the physical uplink shared channel and the PTRS per resource element per layer, and the number of uplink transmission layers ranges from 1 to 8.

[0124] S301b: The network device determines the power coefficient P, the number L of uplink transmission layers, the number Q of precoding information and PTRS ports. P and obtain at least one correspondence between the at least one of the following:

[0125] where P is the first coefficient α PTRS PUSCH , the second coefficient ρ PTRS PUSCH or the third coefficient β PT-RS,i may be understood as PTRS PUSCH =-α PTRS PUSCH[dB] and

number

[0126] a k,l (p,μ) =β PT-RS,i r k and a k,l (p,μ) is the sequence of the PTRS signal, l is the time domain position corresponding to the PTRS signal, k is the frequency domain position corresponding to the PTRS signal, p is the port number, μ is the subcarrier spacing, and β PT-RS,i is the power coefficient, and r k is the base sequence.

[0127] For layers 1T to 8T and 1 to 8, the power coefficient P, the number of uplink transmission layers L, the number of precoding information and PTRS ports Q P There is at least one correspondence between at least one of the following:

[0128] Before at least one correspondence is determined, the number of possible PTRS ports Q P is determined first.

[0129] The number of PTRS ports may be determined through reporting by the UE or configuration by the network device using higher layer signaling. For example, the UE may send second information to the network device, where the second information includes uplink data information such as the number of PTRS ports or the maximum number of PTRS ports supported by the UE, the number of supported Ngs, and the supported PUSCH transmission modes. In another example, the network device may send third information to the terminal, where the third information includes the number of PTRS ports configured by the network device. For example, the number of PTRS ports configured by the network device may be less than or equal to the number of PTRS ports supported by the UE and reported by the UE. Furthermore, in general, the number of PTRS ports Q Pis the number of antenna coherence groups supported by the UE, N g For a UE that supports uplink 8T8 layer transmission, the number of PTRS ports may be 2 or 4. The maximum number of supported PTRS ports or the maximum number of PTRS ports may be reported based on the UE's capabilities. It is assumed that the number of PUSCH ports associated with one PTRS port is equal to or greater than the number of PUSCH ports corresponding to one layer. For a UE with Ng≦2, the maximum number of supported PTRS ports or the maximum number of PTRS ports is 2. For a UE with Ng=4, the maximum number of supported PTRS ports or the maximum number of PTRS ports may be 2 or 4. When Ng=2, data of one layer is transmitted through a maximum of four DMRS ports, and the maximum number of PTRS ports is 2 or less. When Ng=4, data of one layer is transmitted through a maximum of two DMRS ports, and the maximum number of PTRS ports is 4 or less.

[0130] Obviously, even if the supported Ng=4, the terminal may report that only one PTRS port is supported. In other words, as long as the number of PTRS ports is less than or equal to the number of Ng and the terminal supports the corresponding number of PTRS ports, such a configuration of the number of PTRS ports is reasonable.

[0131] In conclusion, for an uplink 8T terminal, there may be several cases for the number of PTRS ports:

[0132] Case (1): Ng=1 and the number of PTRS ports is 1.

[0133] Case (2): Ng=2 and the number of PTRS ports is 1.

[0134] Case (3): Ng=2, and the number of PTRS ports is 2.

[0135] Case (4): Ng=4 and the number of PTRS ports is 2.

[0136] Case (5): Ng=4, and the number of PTRS ports is 4.

[0137] Based on the above five cases of the number of PTRS ports, we will separately discuss below how to determine the PUSCH-to-PTRS power coefficient per RE per layer for the cases of 8T and 8 layers. Obviously, this is not limited to 8T in this application, but may alternatively be 1T to 7T. In the following, we use 8T as an example for illustration. This method can be used for similar determinations for other numbers of T.

[0138] The TPMI formats corresponding to the three PUSCH transmission modes are first described. In the uplink 8-antenna PUSCH transmission mode, the precoding matrix may be an Nt*NL matrix, where Nt is the number of transmit antennas and NL is the number of uplink transmission layers.

[0139] (1) Full coherent transmission mode

[0140] The following precoding matrix is ​​used as an example: The realization of an 8-antenna 8-layer fully coherent codebook is described.

number

[0141] The element at the xth row and yth column in the precoding matrix is ​​a x,y where a x,y can be a real number modulo 1, and a x,y The specific value of is usually {1,-1,j,-j}.

number

[0142] (2) Partially coherent transmission mode

number

[0143] The element at the xth row and yth column in the precoding matrix is ​​a x,y where a x,y can be a real number modulo 1, and a x,y The specific value of is usually {1,-1,j,-j}.

number

[0144] (3) Non-coherent transmission mode

number

[0145] The element at the xth row and yth column in the precoding matrix is ​​a x,y where a x,ycan be a real number modulo 1, and a x,y The specific value of is usually {1,-1,j,-j}.

number

[0146] For the full coherent / partially coherent / non-coherent codebook formats, the order of columns within the same codeword is not restricted.

[0147] In scenarios with fewer than eight layers, the codebook is a subset of the codebook above.

[0148] In this embodiment, when a network device configures one PTRS port, the PUSCH to PTRS power factor per RE per layer is P = 10 * log 10 (Q p *L p ), and Q p is the number of PTRS ports, and L p is the number of uplink transmission layers associated with one PTRS port. When a network device configures two or more PTRS ports, the PUSCH-to-PTRS power factor per RE per layer is P = 10 * log10(Q p *L Ng ), and Q p is the number of PTRS ports, and L Ng is the number of uplink transmission layers corresponding to one antenna coherence group Ng.

[0149] Case (1): Ng=1 and the number of PTRS ports is 1.

[0150] This case corresponds to a fully coherent transmission scenario. In this case, the PUSCH-to-PTRS power coefficient per RE per layer is related only to the total number of uplink transmission layers. Figure 4a is an example diagram of an 8T8 layer precoding matrix according to an embodiment of this application. For each uplink antenna port (row of the codebook), a complex value of the same amplitude (only 1 is used as an example herein, including, but not limited to, other complex values) is transmitted in each uplink transmission layer (column of the codebook). In this scenario, PTRS port 0 is associated with only one uplink transmission layer, i.e., only the precoding vector corresponding to the complex value in only one layer (one column) among eight layers (eight layers are used as an example herein, and the actual number of layers may range from 1 to 8) needs to be transmitted. In this case, it can be understood that fully coherent antenna coherence capability means that power may be "borrowed" between different uplink antenna ports. Specifically, the power corresponding to a PTRS port for one layer may be the same as the power used by the UE to transmit uplink data of eight layers, or in other words, when the PTRS is transmitted based on the power of one uplink data layer, the power of PTRS port 0 is 1 / 8 of the uplink transmission power, that is, the linear value of the power of the PTRS port may be increased by 8 times, i.e., 9 dB.

[0151] Similarly, in the case of 8T and seven layers, the power corresponding to the PTRS port for one layer may be the same as the power used by the UE to transmit uplink data of seven layers, or in other words, when the PTRS is transmitted based on the power of one uplink data layer, the power of PTRS port 0 is 1 / 7 of the uplink transmission power, that is, the linear value of the power of the PTRS port may be increased by seven times, i.e., 8.45 dB.

[0152] In the case of 8T and six layers, the power corresponding to the PTRS port for one layer may be the same as the power used by the UE to transmit uplink data of six layers, or in other words, when the PTRS is transmitted based on the power of one uplink data layer, the power of PTRS port 0 is 1 / 6 of the uplink transmission power, that is, the linear value of the power of the PTRS port may be increased by six times, i.e., 7.78 dB.

[0153] In the case of 8T and five layers, the power corresponding to the PTRS port for one layer may be the same as the power used by the UE to transmit uplink data of five layers, or in other words, when the PTRS is transmitted based on the power of one uplink data layer, the power of PTRS port 0 is 1 / 5 of the uplink transmission power, that is, the linear value of the power of the PTRS port may be increased by 5 times, i.e., 7 dB.

[0154] In the case of 8T and four layers, the power corresponding to the PTRS port for one layer may be the same as the power used by the UE to transmit uplink data of four layers, or in other words, when the PTRS is transmitted based on the power of one uplink data layer, the power of PTRS port 0 is 1 / 4 of the uplink transmission power, that is, the linear value of the power of the PTRS port may be increased by four times, i.e., 6 dB.

[0155] In the case of 8T and three layers, the power corresponding to the PTRS port for one layer may be the same as the power used by the UE to transmit uplink data of the three layers, or in other words, when the PTRS is transmitted based on the power of one uplink data layer, the power of PTRS port 0 is 1 / 3 of the uplink transmission power, that is, the linear value of the power of the PTRS port may be increased by three times, i.e., 4.77 dB.

[0156] In the case of 8T and two layers, the power corresponding to the PTRS port for one layer may be the same as the power used by the UE to transmit uplink data of the two layers, or in other words, when the PTRS is transmitted based on the power of one uplink data layer, the power of PTRS port 0 is 1 / 2 of the uplink transmission power, that is, the linear value of the power of the PTRS port may be increased by 2 times, i.e., 3 dB.

[0157] In the case of 8T and one layer, the power corresponding to the PTRS port for one layer may be the same as the power used by the UE to transmit uplink data of one layer, and the linear value of the power of the PTRS port may be increased by 0 dB.

[0158] Specifically, in a full coherent transmission scenario, the relationship between the PUSCH to PTRS power factor per RE per layer and the total number of uplink transmission layers is as follows: [Table 5]

[0159] According to the above description, in this case, the PUSCH to PTRS power factor per RE per layer may be determined according to the following formula: P=10*log10(L)

[0160] The formula is P=10*log10(Q p *L p ), namely, Q p = 1, or by the formula P = 10 * log 10(Q p *L Ng ), namely, Q p = 1.

[0161] The method for determining the power coefficients in the full coherent antenna coherence format has strong reference to the method for determining the power coefficients in several cases below. The main common point is that when the number of antenna coherence groups Ng is greater than 1, the understanding may be performed in Ng according to the full coherent antenna coherence format. Power may be "borrowed" between different layers within the same Ng, or in other words, the total power within the same Ng is fixed, and when a PTRS is transmitted by only one PTRS port, all of the power may be allocated to the PTRS port, and when data of more than one layer is transmitted, the power may be allocated evenly to these data layers.

[0162] Case (2): Ng=2 and the number of PTRS ports is 1.

[0163] The PUSCH to PTRS power factor per RE per layer is related to the number of PUSCH layers transmitted by each Ng. The PTRS port only considers the constraint that the total power in Ng is fixed, i.e., only the power of the different layers in Ng is borrowed, and the power contributed by the time-frequency resources occupied by the PTRS port is not further borrowed. This is expressed as P=10*log10(L Ng ) This formula can be expressed as P=10*log10(Q p *L p ), namely, Q p = 1.

[0164] Case (3-1): Ng=2, and the number of PTRS ports is 2.

[0165] This case corresponds to a partially coherent transmission scenario. For example, the codebook in each Ng is fully coherent, that is, the precoding matrices corresponding to all PUSCH transmission layers corresponding to Ng do not contain elements whose modulus is 0. Based on different codebook formats (including Type 1 and Type 2), the PUSCH-to-PTRS power coefficients per RE per layer in different cases are described below.

[0166] FIG. 4b shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=2, the number of PTRS ports is 2, and codebook type 1 is used.

[0167] In the case of 8T and eight layers, as shown in the first diagram from the left in Figure 4b, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in four layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P = 10 * log 10(L Ng0) When PTRS Port 0 is associated with DMRS Port 0 for codeword (CW) 0, the power of PTRS Port 0 increases by a factor of four relative to the power of the PUSCH port, and the power increase has a linear value of four, or 6 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(2*4)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, and the power increase has a linear value of 8 times.

[0168] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0169] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0170] For 8T and seven layers, the UE may support a maximum of two PTRS ports, as shown in the second diagram from the left in Figure 4b. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in four layers in Ng0, and power is configured in only three layers in Ng1. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P = 10 * log 10(L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of four relative to the power of the PUSCH port, and the power increase has a linear value of four, or 6 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), PTRS port 1 only considers the constraint that the total power in Ng1 is fixed, i.e., only the power of different layers in Ng1 is borrowed. This is expressed as P=10*log10(L Ng1) When PTRS Port 1 is associated with DMRS Port 4 for CW1, the power of PTRS Port 1 increases by a factor of three relative to the power of the PUSCH port, and the power increase has a linear value of three, or 4.77 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmissions, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*4)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, with the power increase having a linear value of 8 times, and the power of PTRS port 1 may be increased by P=10*log10(2*3)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times.

[0171] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0172] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0173] In the case of 8T and six layers, as shown in the third diagram from the left in Figure 4b, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in three layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P = 10 * log 10(L Ng0) When PTRS Port 0 is associated with DMRS Port 0, the power of PTRS Port 0 is increased by a factor of three relative to the power of the PUSCH port, and the power increase has a linear value of three, or 4.77 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(2*3)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, where the power increase has a linear value of 6 times.

[0174] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0175] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0176] For 8T and five layers, the UE may support a maximum of two PTRS ports, as shown in the fourth diagram from the left in Figure 4b. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in three layers in Ng0, and power is configured in only two layers in Ng1. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P=10*log10(L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of three relative to the power of the PUSCH port, and the power increase has a linear value of three, or 4.77 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), PTRS port 1 only considers the constraint that the total power in Ng1 is fixed, i.e., only the power of different layers in Ng1 is borrowed. This is expressed as P=10*log10(L Ng1) In this case, the power of PTRS Port 1 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE also depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*3)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times, and the power of PTRS port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, with the power increase having a linear value of 4 times.

[0177] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0178] In the case of 8T and 5 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0179] In the case of 8T and four layers, as shown in the fifth diagram from the left in Figure 4b, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in two layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This means that P=3Q pIn this case, the power of PTRS Port 0 increases by 3*1=4.77 dB, i.e., three times, relative to the power of the PUSCH port, and the power increase has a linear value of three times. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE also depends on the transmission status of the other PTRS port. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 is increased by P=3Q relative to the power of the PUSCH port. p =3*2=7.78 dB, i.e., it may be increased by a factor of 6, where the power increase has a linear value of 6.

[0180] The above is the value of P in partial coherent mode for 8T and 4 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0181] In the case of 8T and four layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of four relative to the power of the PUSCH port, the power increase having a linear value of four or 6 dB in the logarithmic domain.

[0182] For 8T and three layers, the UE may support a maximum of two PTRS ports, as shown in the sixth diagram from the left in Figure 4b. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in two layers in Ng0, and power is configured in only one layer in Ng1. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P = 10 * log 10(L Ng0 ) In this case, the power of PTRS Port 0 increases by a factor of 2 relative to the power of the PUSCH port, and the power increase has a linear value of 2, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS Port 1), the power of PTRS Port 1 increases by a factor of 0 relative to the power of the PUSCH port, and the power increase has a linear value of 0, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other PTRS ports. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and may be increased by borrowing power not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*2)=6 dB relative to the power of the PUSCH port, i.e., by a factor of four, with the power increase having a linear value of four, and the power of PTRS port 1 may be increased by P=10*log10(2*1)=3 dB relative to the power of the PUSCH port, i.e., by a factor of two, with the power increase having a linear value of two.

[0183] The above is the value of P in partial coherent mode for 8T and three layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0184] In the case of 8T and three layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of three relative to the power of the PUSCH port, the power increase having a linear value of three, or 4.77 dB in the logarithmic domain.

[0185] In the case of 8T and two layers, as shown in the seventh diagram from the left in Figure 4b, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in one layer in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This means that P=3Q pThe power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 increases by 3*1-3=0 dB relative to the power of the PUSCH port, i.e., 0 times, and the power increase has a linear value of 0 times. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE also depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 is increased by P=3Q relative to the power of the PUSCH port. p It may be increased by a factor of -3=3*2-3=3, where the power increase has a linear value of 3, or 4.47 dB in the logarithmic domain.

[0186] The above is the value of P in partial coherent mode in the case of 8T and two layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0187] In the case of 8T and two layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of two relative to the power of the PUSCH port, the power increase having a linear value of two or 3 dB in the logarithmic domain.

[0188] For 8T and one layer, the UE may support up to two PTRS ports, as shown in the eighth diagram from the left in Figure 4b. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in one layer in Ng0 and not configured in Ng1. When the network device configures PTRS port 0, the power increase of PTRS port 0 relative to the PUSCH port has a linear value of 0, or 0 dB in the logarithmic domain.

[0189] FIG. 4c shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=2, the number of PTRS ports is 2, and codebook type 2 is used.

[0190] In the case of 8T and eight layers, as shown in the first diagram from the left in Figure 4c, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in four layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P = 10 * log 10(L Ng0) In this case, the power of PTRS Port 0 is increased by a factor of four relative to the power of the PUSCH port, and the power increase has a linear value of four, or 6 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(2*4)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, and the power increase has a linear value of 8 times.

[0191] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0192] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0193] For 8T and seven layers, the UE may support a maximum of two PTRS ports, as shown in the second diagram from the left in Figure 4c. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in three layers in Ng0 and power is configured in four layers in Ng1. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P=10*log10(L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of three relative to the power of the PUSCH port, and the power increase has a linear value of three, or 4.77 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), PTRS port 1 only considers the constraint that the total power in Ng1 is fixed, i.e., only the power of different layers in Ng1 is borrowed. This is expressed as P=10*log10(L Ng1) When PTRS Port 1 is associated with DMRS Port 3 for CW1, the power of PTRS Port 1 increases by a factor of four relative to the power of the PUSCH port, and the power increase has a linear value of four, or 6 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*3)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times, and the power of PTRS port 1 may be increased by P=10*log10(2*4)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, with the power increase having a linear value of 8 times.

[0194] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0195] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0196] In the case of 8T and six layers, as shown in the third diagram from the left in Figure 4c, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in three layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P = 10 * log 10(L Ng0) When PTRS Port 0 is associated with DMRS Port 0, the power of PTRS Port 0 is increased by a factor of three relative to the power of the PUSCH port, and the power increase has a linear value of three, or 4.77 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(2*3)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, where the power increase has a linear value of 6 times.

[0197] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0198] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0199] For 8T and five layers, as shown in the fourth diagram from the left in Figure 4c, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in two layers in Ng0 and power is configured in three layers in Ng1. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., only power from different layers in Ng0 is borrowed. This is expressed as P=10*log10(L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), PTRS port 1 only considers the constraint that the total power in Ng1 is fixed, i.e., only the power of different layers in Ng1 is borrowed. This is expressed as P=10*log10(L Ng1) In this case, the power of PTRS Port 1 is increased by a factor of three relative to the power of the PUSCH port, and the power increase has a linear value of three, or 4.77 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*2)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, with the power increase having a linear value of 4 times, and the power of PTRS port 1 may be increased by P=10*log10(2*3)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times.

[0200] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0201] In the case of 8T and 5 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0202] For 8T and four layers, the UE may support up to two PTRS ports, as shown in the fifth diagram from the left in Figure 4c. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured at the four layers in Ng0, and power is not configured at any layer in Ng1. When the network device configures PTRS port 0, the power of PTRS port 0 is increased by a factor of four relative to the power of the PUSCH port, and the power increase has a linear value of four, or 6 dB in the logarithmic domain.

[0203] For 8T and three layers, the UE may support up to two PTRS ports, as shown in the sixth diagram from the left in Figure 4c. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured at the three layers in Ng0, and power is not configured at any layer in Ng1. When the network device configures PTRS port 0, the power of PTRS port 0 is increased by a factor of three relative to the power of the PUSCH port, and the power increase has a linear value of three, or 4.77 dB in the logarithmic domain.

[0204] For 8T and two layers, the UE may support up to two PTRS ports, as shown in the seventh diagram from the left in Figure 4c. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured at two layers in Ng0, and power is not configured at any layer in Ng1. When the network device configures PTRS port 0, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain.

[0205] For 8T and one layer, the UE may support up to two PTRS ports, as shown in the eighth diagram from the left in Figure 4c. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured at one layer in Ng0 and not configured at any layer in Ng1. When the network device configures PTRS port 0, the power of PTRS port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times or 0 dB in the logarithmic domain.

[0206] Case (4-1): Ng=4 and the number of PTRS ports is 2.

[0207] This case corresponds to a partially coherent transmission scenario. For example, the codebook in each Ng is fully coherent, that is, the precoding matrices corresponding to all PUSCH transmission layers corresponding to Ng do not contain elements whose modulus is 0. Based on different codebook formats (including Type 1 and Type 2), the PUSCH-to-PTRS power coefficients per RE per layer in different cases are described below.

[0208] FIG. 4d shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=4, the number of PTRS ports is 2, and codebook type 1 is used.

[0209] For 8T and eight layers, as shown in the first diagram from the left in Figure 4d, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers within Ng0 to Ng3. PTRS port 0 corresponds to Ng0 and Ng1, and PTRS port 1 corresponds to Ng2 and Ng3. PTRS port 0 may transmit a PTRS on any one of the first through fourth DMRS ports (DMRS ports 0, 1, 4, and 5, respectively). If PTRS port 0 transmits a PTRS on the first or third DMRS port, the Ng in which PTRS port 0 is located is Ng0. If PTRS Port 0 transmits a PTRS on the second or fourth DMRS port, the Ng in which PTRS Port 0 is located is Ng1. Similarly, PTRS Port 1 may transmit a PTRS on any one of the first through fourth DMRS ports (DMRS Ports 2, 3, 6, and 7, respectively). If PTRS Port 1 transmits a PTRS on the first or third DMRS port, the Ng in which PTRS Port 1 is located is Ng2. If PTRS Port 1 transmits a PTRS on the second or fourth DMRS port, the Ng in which PTRS Port 1 is located is Ng3. When a network device configures one PTRS port (e.g., PTRS Port 0), if the Ng in which PTRS Port 0 is located is Ng0 or Ng1, PTRS Port 0 only considers the constraint that the total power in Ng0 or Ng1 is fixed, i.e., only power from different layers in Ng0 or Ng1 is borrowed. This is expressed as P=10*log10(L Ng0又はNg1) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, and the power increase has a linear value of four times.

[0210] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0211] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0212] For 8T and seven layers, the UE may support up to two PTRS ports, as shown in the second diagram from the left in Figure 4d. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0, Ng1, and Ng2, and power is configured in only one layer in Ng3. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 or Ng1 is fixed, i.e., only power from different layers in Ng0 or Ng1 is borrowed. This is expressed as P = 10 * log 10(L Ng0又はNg1) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS Port 1), if PTRS Port 1 is associated with the first or second DMRS Port (PTRS Port 1 may be associated with any one of DMRS Ports 2, 5, and 6, with the first DMRS Port being DMRS Port 2, the second DMRS Port being DMRS Port 5, and the third DMRS Port being DMRS Port 6), the Ng in which PTRS Port 1 is located is Ng2. PTRS Port 1 only considers the constraint that the total power in Ng2 is fixed, i.e., only power from different layers within Ng2 is borrowed. This is expressed as P=10*log10(L Ng2 ) In this case, the power of PTRS Port 1 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS Port 1), if PTRS Port 1 is associated with a third DMRS port (i.e., DMRS Port 6), the Ng in which PTRS Port 1 is located is Ng3. PTRS Port 1 only considers the constraint that the total power in Ng3 is fixed, i.e., only the power of different layers in Ng3 is borrowed. This is expressed as P=10*log10(L Ng3) In this case, the power of PTRS Port 1 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ). Specifically, the power of PTRS Port 0 (the Ng in which PTRS Port 0 is located is Ng0 or Ng1) may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with the power increase having a linear value of four. If the Ng in which PTRS Port 1 is located is Ng2, the power of PTRS Port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with the power increase having a linear value of four. If the Ng in which PTRS Port 1 is located is Ng3, the power of PTRS Port 1 may be increased by P=10*log10(2*1)=3 dB, i.e., two times, relative to the power of the PUSCH port, with the power increase having a linear value of two.

[0213] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0214] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0215] For 8T and six layers, the UE may support up to two PTRS ports, as shown in the third diagram from the left in Figure 4d. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0 and Ng1, and power is configured in only one layer in Ng2 and Ng3. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 or Ng1 is fixed, i.e., only power from different layers in Ng0 or Ng1 is borrowed. This is expressed as P = 10 * log 10(L Ng0又はNg1) In this case, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), PTRS port 1 only considers the constraint that the total power in Ng2 or Ng3 is fixed, i.e., it only borrows power from different layers in Ng2 or Ng3, and the PUSCH to PTRS power factor is P=10*log10(L Ng2又はNg3 ) In this case, the power of PTRS Port 1 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*2)=6 dB relative to the power of the PUSCH port, i.e., by a factor of four, with the power increase having a linear value of four, and the power of PTRS port 1 may be increased by P=10*log10(2*1)=3 dB relative to the power of the PUSCH port, i.e., by a factor of two, with the power increase having a linear value of two.

[0216] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0217] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0218] For 8T and five layers, as shown in the fourth diagram from the left in Figure 4d, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0 and at only one layer in Ng1-Ng3. When a network device configures one PTRS port (e.g., PTRS port 0), if PTRS port 0 is associated with the first or third DMRS port (PTRS port 0 may be associated with any one of DMRS ports 0, 1, and 2, where the first DMRS port is DMRS port 0, the second DMRS port is DMRS port 1, and the third DMRS port is DMRS port 2), the Ng in which PTRS port 0 is located is Ng0. In this case, PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH to PTRS power factor is P=10*log10(L Ng0) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS Port 0), if PTRS Port 0 is associated with a second DMRS port (i.e., DMRS Port 1), the Ng in which PTRS Port 0 is located is Ng1. PTRS Port 0 only considers the constraint that the total power in Ng1 is fixed, i.e., it only borrows power from different layers in Ng1, and the PUSCH to PTRS power factor is P=10*log10(L Ng1 ) In this case, the power of PTRS port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), the Ng in which PTRS port 1 is located is Ng2 or Ng3. PTRS port 1 only considers the constraint that the total power in Ng2 or Ng3 is fixed, i.e., it only borrows power from different layers in Ng2 or Ng3, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng2又はNg3) In this case, the power of PTRS Port 1 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ). Specifically, the power of PTRS Port 0 (the Ng in which PTRS Port 0 is located is Ng0) may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with the power increase having a linear value of four. If the Ng in which PTRS Port 0 is located is Ng1, the power of PTRS Port 0 may be increased by P=10*log10(2*1)=3 dB, i.e., two times, relative to the power of the PUSCH port, with the power increase having a linear value of two. If the Ng in which PTRS Port 1 is located is Ng2 or Ng3, the power of PTRS Port 1 may be increased by P=10*log10(2*1)=3 dB, i.e., two times, relative to the power of the PUSCH port, with the power increase having a linear value of two.

[0219] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0220] In the case of 8T and 5 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0221] For 8T and four layers, the UE may support up to two PTRS ports, as shown in the fifth diagram from the left in Figure 4d. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in only one layer within Ng0-Ng3. The power of the PTRS ports is compared to the power of the PUSCH ports by P = (3Q p The power of each PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. Specifically, when a network device configures one PTRS port (PTRS Port 0 or PTRS Port 1), the power of the PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), the power of each PTRS Port 0 and PTRS Port 1 may be increased by P = 3 * 2 - 3 = 3 dB compared to the power of the PUSCH port.

[0222] The above is the value of P in partial coherent mode for 8T and 4 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0223] In the case of 8T and four layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of four relative to the power of the PUSCH port, the power increase having a linear value of four or 6 dB in the logarithmic domain.

[0224] For 8T and three layers, as shown in the sixth diagram from the left in Figure 4d, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in only one layer within Ng0-Ng2, and not in any layer within Ng3. The power of the PTRS ports is compared to the power of the PUSCH ports by P = (3Q p The power of each PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. Specifically, when a network device configures one PTRS port (PTRS Port 0 or PTRS Port 1), the power of the PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), the power of each PTRS Port 0 and PTRS Port 1 may be increased by P = 3 * 2 - 3 = 3 dB compared to the power of the PUSCH port.

[0225] The above is the value of P in partial coherent mode for 8T and three layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0226] In the case of 8T and three layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of three relative to the power of the PUSCH port, the power increase having a linear value of three, or 4.77 dB in the logarithmic domain.

[0227] For 8T and two layers, as shown in the seventh diagram from the left in Figure 4d, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in only one layer in Ng0 and Ng2, and not in either layer in Ng1 and Ng3. The power of the PTRS ports is compared to the power of the PUSCH ports by P = (3Q p The power of each PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. Specifically, when a network device configures one PTRS port (PTRS Port 0 or PTRS Port 1), the power of the PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), the power of each PTRS Port 0 and PTRS Port 1 may be increased by P = 3 * 2 - 3 = 3 dB compared to the power of the PUSCH port.

[0228] The above is the value of P in partial coherent mode in the case of 8T and two layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0229] In the case of 8T and two layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of two relative to the power of the PUSCH port, the power increase having a linear value of two or 2 dB in the logarithmic domain.

[0230] For 8T and one layer, the UE may support up to two PTRS ports, as shown in the eighth diagram from the left in Figure 4d. Whether the network device configures one or two PTRS ports, the power increase of the PTRS port relative to the PUSCH port has a linear value of 0 times or is 0 dB in the logarithmic domain.

[0231] FIG. 4e shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=2, the number of PTRS ports is 2, and codebook type 2 is used.

[0232] For 8T and eight layers, as shown in the first diagram from the left in Figure 4e, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers within Ng0 to Ng3. PTRS port 0 may transmit a PTRS on any one of the first through fourth DMRS ports (DMRS ports 0, 1, 2, and 3, respectively). If PTRS port 0 transmits a PTRS on the first or second DMRS port, the Ng in which PTRS port 0 is located is Ng0. If PTRS port 0 transmits a PTRS on the third or fourth DMRS port, the Ng in which PTRS port 0 is located is Ng1. Similarly, PTRS Port 1 may transmit a PTRS on any one of the first to fourth DMRS ports (DMRS Ports 4, 5, 6, and 7, respectively). If PTRS Port 1 transmits a PTRS on the first or second DMRS port, the Ng in which PTRS Port 1 is located is Ng2. If PTRS Port 1 transmits a PTRS on the third or fourth DMRS port, the Ng in which PTRS Port 1 is located is Ng3. When a network device configures one PTRS port (e.g., PTRS Port 0), if the Ng in which PTRS Port 0 is located is Ng0 or Ng1, PTRS Port 0 only considers the constraint that the total power in Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers in Ng0 or Ng1, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng0又はNg1) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 both perform transmission, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, and the power increase has a linear value of four times.

[0233] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0234] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0235] For 8T and seven layers, as shown in the second diagram from the left in Figure 4e, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0 and Ng2, and in only one layer in Ng1 and Ng3. PTRS port 0 may transmit a PTRS on any one of the first through third DMRS ports (DMRS ports 0, 1, and 2, respectively). If PTRS port 0 transmits a PTRS on the first or second DMRS port, the Ng in which PTRS port 0 is located is Ng0. If PTRS port 0 transmits a PTRS on the third DMRS port, the Ng in which PTRS port 0 is located is Ng1. PTRS Port 1 may transmit a PTRS on any one of the first to fourth DMRS ports (DMRS Ports 3, 4, 5, and 6, respectively). When PTRS Port 1 transmits a PTRS on the first or second DMRS port, the Ng where PTRS Port 1 is located is Ng2. When PTRS Port 1 transmits a PTRS on the third or fourth DMRS port, the Ng where PTRS Port 1 is located is Ng3. When a network device configures one PTRS port (e.g., PTRS Port 0), if PTRS Port 0 is associated with the first or second DMRS port, the Ng where PTRS Port 0 is located is Ng0. PTRS Port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng0) In this case, the power of PTRS port 0 is increased by two times relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 0), if PTRS port 0 is associated with a third DMRS port, the Ng in which PTRS port 0 is located is Ng1. PTRS port 0 only considers the constraint that the total power in Ng1 is fixed, i.e., it only borrows power from different layers in Ng1, and the PUSCH to PTRS power factor is P=10*log10(L Ng1 ) In this case, the power of PTRS port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), if PTRS port 1 is associated with the first or second DMRS port, the Ng in which PTRS port 1 is located is Ng2. PTRS port 0 only considers the constraint that the total power in Ng2 is fixed, i.e., it only borrows power from different layers in Ng2, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng2 ) In this case, the power of PTRS port 1 is increased by two times relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), if PTRS port 1 is associated with the third or fourth DMRS port, the Ng in which PTRS port 1 is located is Ng3. PTRS port 1 only considers the constraint that the total power in Ng3 is fixed, i.e., it only borrows power from different layers in Ng3, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng3) In this case, the power of PTRS Port 1 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ). Specifically, if the Ng in which PTRS Port 0 is located is Ng0, the power of PTRS Port 0 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with a linear power increase of four times. If the Ng in which PTRS Port 0 is located is Ng1, the power of PTRS Port 0 may be increased by P=10*log10(2*1)=3 dB, i.e., two times, relative to the power of the PUSCH port, with a linear power increase of two times. The power of PTRS Port 1 (the Ng in which PTRS Port 1 is located is Ng2 or Ng3) may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with a linear power increase of four times.

[0236] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0237] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0238] For 8T and six layers, as shown in the third diagram from the left in Figure 4e, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0 and Ng3, and in only one layer in Ng1 and Ng2. PTRS port 0 may transmit a PTRS on any one of the first through third DMRS ports (DMRS ports 0, 1, and 2, respectively). If PTRS port 0 transmits a PTRS on the first or second DMRS port, the Ng in which PTRS port 0 is located is Ng0. If PTRS port 0 transmits a PTRS on the third DMRS port, the Ng in which PTRS port 0 is located is Ng1. PTRS Port 1 may transmit a PTRS on any one of the first to third DMRS ports (DMRS Ports 3, 4, and 5, respectively). When PTRS Port 1 transmits a PTRS on the first or second DMRS port, the Ng where PTRS Port 1 is located is Ng2. When PTRS Port 1 transmits a PTRS on the second or third DMRS port, the Ng where PTRS Port 1 is located is Ng3. When a network device configures one PTRS port (e.g., PTRS Port 0), if PTRS Port 0 is associated with the first or second DMRS port, the Ng where PTRS Port 0 is located is Ng0. PTRS Port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng0) In this case, the power of PTRS port 0 is increased by two times relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 0), if PTRS port 0 is associated with a third DMRS port, the Ng in which PTRS port 0 is located is Ng1. PTRS port 0 only considers the constraint that the total power in Ng1 is fixed, i.e., it only borrows power from different layers in Ng1, and the PUSCH to PTRS power factor is P=10*log10(L Ng1 ) In this case, the power of PTRS port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), if PTRS port 1 is associated with the first DMRS port, the Ng in which PTRS port 1 is located is Ng2. PTRS port 1 only considers the constraint that the total power in Ng2 is fixed, i.e., it only borrows power from different layers in Ng2, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng2 ) In this case, the power of PTRS Port 1 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS Port 1), if PTRS Port 1 is associated with the second or third DMRS port, the Ng in which PTRS Port 1 is located is Ng3. PTRS Port 1 only considers the constraint that the total power in Ng3 is fixed, i.e., it only borrows power from different layers in Ng3, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng3) In this case, the power of PTRS Port 1 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ). Specifically, if the Ng where PTRS Port 0 is located is Ng0, the power of PTRS Port 0 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with a linear value of four times. If the Ng where PTRS Port 0 is located is Ng1, the power of PTRS Port 0 may be increased by P=10*log10(2*1)=3 dB, i.e., two times, relative to the power of the PUSCH port, with a linear value of two times. If the Ng where PTRS Port 1 is located is Ng2, the power of PTRS Port 1 may be increased by P=10*log10(2*1)=3 dB, i.e., two times, relative to the power of the PUSCH port, with a linear value of two times. If the Ng in which PTRS port 1 is located is Ng3, the power of PTRS port 1 may be increased by P=10*log10(2*2)=6dB, i.e., 4 times, relative to the power of the PUSCH port, and the power increase has a linear value of 4 times.

[0239] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0240] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0241] For 8T and five layers, as shown in the fourth diagram from the left in Figure 4e, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0 and Ng3, power is configured in only one layer in Ng2, and power is not configured in Ng1. PTRS port 0 may transmit a PTRS on either the first or second DMRS port (DMRS ports 0 and 1, respectively). If PTRS port 0 transmits a PTRS on the first or second DMRS port, the Ng in which PTRS port 0 is located is Ng0. If PTRS port 0 does not transmit a PTRS, the Ng in which PTRS port 0 is located is Ng1. PTRS Port 1 may transmit a PTRS on any one of the first to third DMRS ports (DMRS Ports 2, 3, and 4, respectively). When PTRS Port 1 transmits a PTRS on the first or second DMRS port, the Ng where PTRS Port 1 is located is Ng2. When PTRS Port 1 transmits a PTRS on the second or third DMRS port, the Ng where PTRS Port 1 is located is Ng3. When a network device configures one PTRS port (e.g., PTRS Port 0), if PTRS Port 0 is associated with the first or second DMRS port, the Ng where PTRS Port 0 is located is Ng0. In this case, PTRS Port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng0) In this case, the power of PTRS port 0 is increased by two times relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), if PTRS port 1 is associated with the first DMRS port, the Ng in which PTRS port 1 is located is Ng2. PTRS port 1 only considers the constraint that the total power in Ng2 is fixed, i.e., it only borrows power from different layers in Ng2, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng2 ) In this case, the power of PTRS Port 1 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS Port 1), if PTRS Port 1 is associated with the second or third DMRS port, the Ng in which PTRS Port 1 is located is Ng3. PTRS Port 1 only considers the constraint that the total power in Ng3 is fixed, i.e., it only borrows power from different layers in Ng3, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng3) In this case, the power of PTRS Port 1 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ). Specifically, the power of PTRS Port 0 (the Ng in which PTRS Port 0 is located is Ng0) may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with the power increase having a linear value of four. If the Ng in which PTRS Port 1 is located is Ng2, the power of PTRS Port 1 may be increased by P=10*log10(2*1)=3 dB, i.e., two times, relative to the power of the PUSCH port, with the power increase having a linear value of two. If the Ng in which PTRS Port 1 is located is Ng3, the power of PTRS Port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with the power increase having a linear value of four.

[0242] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0243] In the case of 8T and 5 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0244] For 8T and four layers, the UE may support up to two PTRS ports, as shown in the fifth diagram from the left in Figure 4e. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0 and Ng1, and power is not configured at any layer in Ng2 and Ng3. Therefore, when the network device configures PTRS port 0, the power of PTRS port 0 is P=3Q compared to the power of the PUSCH ports. p It may be increased by -3=3*2-3=3dB.

[0245] The above is the value of P in partial coherent mode for 8T and 4 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0246] In the case of 8T and four layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of four relative to the power of the PUSCH port, the power increase having a linear value of four or 6 dB in the logarithmic domain.

[0247] For 8T and three layers, as shown in the sixth diagram from the left in Figure 4e, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0, power is configured at one layer in Ng1, and power is not configured at either layer in Ng2 or Ng3. The power of the PTRS ports is compared to the power of the PUSCH ports by P = (3Q p The power of PTRS Port 0 may be increased by P = 3 * 2 - 3 = 3 dB compared to the power of the PUSCH port. Specifically, when a network device configures one PTRS port (e.g., PTRS Port 0), the power of PTRS Port 0 may be increased by P = 3 * 2 - 3 = 3 dB compared to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), the power of each of PTRS Port 0 and PTRS Port 1 may be increased by P = 3 * 2 - 3 = 3 dB compared to the power of the PUSCH port. When PTRS Port 1 is associated with a second or third DMRS port (DMRS Port 1 or DMRS Port 2), the power of PTRS Port 1 may be increased by P = 3 * 2 - 3 = 3 dB relative to the power of the PUSCH port.

[0248] The above is the value of P in partial coherent mode for 8T and three layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0249] In the case of 8T and three layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of three relative to the power of the PUSCH port, the power increase having a linear value of three, or 4.77 dB in the logarithmic domain.

[0250] For 8T and two layers, as shown in the seventh diagram from the left in Figure 4e, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers only in Ng0, and not in any of the layers in Ng1 to Ng3. Therefore, the power of PTRS port 0 is P=3Q compared to the power of the PUSCH ports. p It may be increased by -3=3*2-3=3dB.

[0251] The above is the value of P in partial coherent mode in the case of 8T and two layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0252] In the case of 8T and two layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of two relative to the power of the PUSCH port, the power increase having a linear value of two or 2 dB in the logarithmic domain.

[0253] For 8T and one layer, the UE may support up to two PTRS ports, as shown in the eighth diagram from the left in Figure 4e. Whether the network device configures one or two PTRS ports, the power increase of the PTRS port relative to the PUSCH port has a linear value of 0 times or is 0 dB in the logarithmic domain.

[0254] Case (5-1): Ng=4, and the number of PTRS ports is 4.

[0255] This case corresponds to a partially coherent transmission scenario. For example, the codebook in each Ng is fully coherent, that is, the precoding matrices corresponding to all PUSCH transmission layers corresponding to Ng do not contain elements whose modulus is 0. Based on different codebook formats (including Type 1 and Type 2), the PUSCH-to-PTRS power coefficients per RE per layer in different cases are described below.

[0256] In the case of 8T and eight layers, the UE may support up to four PTRS ports, as shown in the first diagram from the left in Figure 4f. Power is configured in two layers within each Ng. When a network device configures one PTRS port (e.g., any one of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3, where PTRS Port 0 is used as an example herein), PTRS Port 0 only considers the constraint that the total power within Ng0 is fixed, i.e., it only borrows power from different layers within Ng0, and the PUSCH to PTRS power factor is P = 10 * log 10(L Ng0 ) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (any two of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS ports. For example, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p). Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, and the power increase has a linear value of four times. When a network device configures three PTRS ports (any three of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports. For example, when PTRS Port 0, PTRS Port 1, and PTRS Port 2 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ). Specifically, the power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by P = 10 * log 10(3 * 2) = 7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other three PTRS ports. For example, when all of PTRS Ports 0 to 3 are transmitting, the PTRS power of each of PTRS Ports 0 to 3 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P = 10 * log 10(Qp *L p Specifically, the power of each of PTRS Port 0, PTRS Port 1, Port 2 and PTRS Port 3 may be increased by P=10*log10(4*2)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, and the power increase has a linear value of 8 times.

[0257] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0258] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0259] For 8T and seven layers, the UE may support up to four PTRS ports, as shown in the second diagram from the left in Figure 4f. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0, Ng1, and Ng2, and power is configured in only one layer in Ng3. When a network device configures one PTRS port (e.g., any one of PTRS port 0, PTRS port 1, and PTRS port 2, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P = 10 * log 10 (L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When the network device configures PTRS port 3, PTRS port 3 only considers the constraint that the total power in Ng3 is fixed, i.e., it only borrows power from different layers in Ng3, and the PUSCH to PTRS power factor is P=10*log10(L Ng3) In this case, the power of PTRS Port 3 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (any two of PTRS Port 0, PTRS Port 1, and PTRS Port 2), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS ports. For example, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p). Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, and the power increase has a four-fold linear value. When a network device configures two PTRS ports (PTRS Port 3 and any one of PTRS Port 0, PTRS Port 1, and PTRS Port 2), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when both PTRS Port 0 and PTRS Port 3 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 3 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p) Specifically, the power of PTRS port 3 may be increased by P=10*log10(2*1)=3 dB relative to the power of the PUSCH port, i.e., by a factor of 2, with the power increase having a linear value of 2, and the power of PTRS port 0 may be increased by P=10*log10(2*2)=6 dB relative to the power of the PUSCH port, i.e., by a factor of 4, with the power increase having a linear value of 4. When a network device configures three PTRS ports (PTRS port 0, PTRS port 1, and PTRS port 2), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 2 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports, and may be increased by borrowing power not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p) Specifically, the power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by P=10*log10(3*2)=7.78 dB, or 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times. When a network device configures three PTRS ports (PTRS Port 3 and any two of PTRS Port 0, PTRS Port 1, and PTRS Port 2), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 3 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 3 is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports, and may be increased by borrowing power not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p) Specifically, the power of PTRS port 3 may be increased by P=10*log10(3*1)=4.77 dB, i.e., three times, relative to the power of the PUSCH port, with the power increase having a linear value of three times, and the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(3*2)=7.78 dB, i.e., six times, relative to the power of the PUSCH port, with the power increase having a linear value of six times. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission states of the other three PTRS ports. For example, if all of PTRS ports 0-3 are transmitting, the PTRS power of each of PTRS ports 0-3 may be increased by borrowing power not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p Specifically, the power of each of PTRS port 0, PTRS port 1 and port 2 may be increased by P=10*log10(4*2)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, with the power increase having a linear value of 8 times, and the power of PTRS port 3 may be increased by P=10*log10(4*1)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, with the power increase having a linear value of 4 times.

[0260] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0261] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0262] For 8T and six layers, the UE may support up to four PTRS ports, as shown in the third diagram from the left in Figure 4f. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0 and Ng1, and power is configured in only one layer in Ng2 and Ng3. When a network device configures one PTRS port (e.g., either PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P = 10 * log 10 (L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., one of PTRS port 2 and PTRS port 3, where PTRS port 3 is used as an example herein), PTRS port 3 only considers the constraint that the total power in Ng3 is fixed, i.e., it only borrows power from different layers in Ng3, and the PUSCH to PTRS power factor is P=10*log10(L Ng3) In this case, the power of PTRS Port 3 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ). Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with the power increase having a linear value of four times. When a network device configures two PTRS ports (e.g., PTRS Port 2 and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS Port 2 and PTRS Port 3 both perform transmission, the PTRS power of each of PTRS Port 2 and PTRS Port 3 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used for transmitting data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p). Specifically, the power of each of PTRS Port 2 and PTRS Port 3 may be increased by P=10*log10(2*1)=3 dB, i.e., by a factor of two, relative to the power of the PUSCH port, with the power increase having a linear value of two. When a network device configures three PTRS ports (any three of PTRS Ports 0 to 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 3 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 3 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p) Specifically, the power of PTRS port 3 may be increased by P=10*log10(3*1)=4.77 dB, i.e., three times, relative to the power of the PUSCH port, with the power increase having a linear value of three times, and the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(3*2)=7.78 dB, i.e., six times, relative to the power of the PUSCH port, with the power increase having a linear value of six times. In another example, if PTRS Port 0, PTRS Port 2, and PTRS Port 3 are all transmitting, the power of each of PTRS Port 2 and PTRS Port 3 may be increased by P=10*log10(3*1)=4.77 dB, or 3 times, relative to the power of the PUSCH port, with the power increase having a linear value of 3 times, and the power of PTRS Port 0 may be increased by P=10*log10(3*2)=7.78 dB, or 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other three PTRS ports. For example, if all of PTRS ports 0-3 are transmitting, the PTRS power of each of PTRS ports 0-3 may be increased by borrowing power not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by P=10*log10(4*2)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, with the power increase having a linear value of 8 times, and the power of each of PTRS Port 2 and PTRS Port 3 may be increased by P=10*log10(4*1)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, with the power increase having a linear value of 4 times.

[0263] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0264] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0265] For 8T and five layers, the UE may support up to four PTRS ports, as shown in the fourth diagram from the left in Figure 4f. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers within Ng0 and power is configured in only one layer within Ng1-Ng3. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power within Ng0 is fixed, i.e., it only borrows power from different layers within Ng0, and the PUSCH-to-PTRS power factor is P = 10 * log 10 (L Ng0) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., any one of PTRS Port 1, PTRS Port 2, and PTRS Port 3, where PTRS Port 3 is used as an example herein), PTRS Port 3 only considers the constraint that the total power in Ng3 is fixed, i.e., it only borrows power from different layers in Ng3, and the PUSCH to PTRS power factor is P=10*log10(L Ng3 ) In this case, the power of PTRS port 3 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., PTRS port 0 and any one of PTRS ports 1-3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS port 0 and PTRS port 1 are both transmitting, the PTRS power of each of PTRS port 0 and PTRS port 1 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*2)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, where the power increase has a linear value of 4 times, and the power of PTRS port 1 may be increased by P=10*log10(2*1)=2 times relative to the power of the PUSCH port, where the power increase has a linear value of 2 times, or 3 dB in the logarithmic domain. When a network device configures three PTRS ports (any three of PTRS ports 0 to 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission states of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 3 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 3 is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports, and may be increased by borrowing power not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p) Specifically, the power of each of PTRS port 1 and PTRS port 3 may be increased by P=10*log10(3*1)=4.77 dB, i.e., 3 times, relative to the power of the PUSCH port, with the power increase having a linear value of 3 times, and the power of PTRS port 0 may be increased by P=10*log10(3*2)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission states of the other three PTRS ports. For example, if all of PTRS ports 0-3 are transmitting, the PTRS power of each of PTRS ports 0-3 may be increased by borrowing power not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of PTRS port 0 may be increased by P=10*log10(4*2)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, with the power increase having a linear value of 8 times, and the power of each of PTRS port 1, PTRS port 2, and PTRS port 3 may be increased by P=10*log10(4*1)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, with the power increase having a linear value of 4 times.

[0266] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0267] In the case of 8T and five layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0268] For 8T and four layers, the UE may support up to four PTRS ports, as shown in the fifth diagram from the left in Figure 4f. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in only one layer within Ng0-Ng3. When a network device configures one PTRS port (any one of PTRS ports 0-3, here PTRS port 0 is used as an example), PTRS port 0 only considers the constraint that the total power within Ng0 is fixed, i.e., it only borrows power from different layers within Ng0, and the PUSCH-to-PTRS power factor is P = 10 * log 10 (L Ng0) In this case, the power of PTRS port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., any two of PTRS ports 0 to 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS port 0 and PTRS port 1 are both transmitting, the PTRS power of each of PTRS port 0 and PTRS port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by P=10*log10(2*1)=2 times relative to the power of the PUSCH port, where the power increase has a linear value of 2, or 3 dB in the logarithmic domain. When a network device configures three PTRS ports (any three of PTRS Ports 0 to 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 3 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 3 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Qp *L p ). Specifically, the power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 3 may be increased by P=10*log10(3*1)=4.77 dB, i.e., three times, relative to the power of the PUSCH port, with the power increase having a linear value of three times. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other three PTRS ports. For example, when all of PTRS Ports 0 to 3 are transmitting, the PTRS power of each of PTRS Ports 0 to 3 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p Specifically, the power of each of PTRS ports 0 to 3 may be increased by P=10*log10(4*1)=6 dB, i.e., four times, relative to the power of the PUSCH port, and the power increase has a linear value of four times.

[0269] The above is the value of P in partial coherent mode for 8T and 4 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0270] In the case of 8T and four layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of four relative to the power of the PUSCH port, the power increase having a linear value of four or 6 dB in the logarithmic domain.

[0271] For 8T and three layers, the UE may support up to four PTRS ports, as shown in the sixth diagram from the left in Figure 4f. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in only one layer within Ng0-Ng2, and power is not configured in any layer within Ng3. When a network device configures one PTRS port (any one of PTRS ports 0-2, here PTRS port 0 is used as an example), PTRS port 0 only considers the constraint that the total power within Ng0 is fixed, i.e., it only borrows power from different layers within Ng0, and the PUSCH-to-PTRS power factor is P = 10 * log 10 (L Ng0 ) In this case, the power of PTRS port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (any two of PTRS ports 0 to 2), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS port 0 and PTRS port 1 are both transmitting, the PTRS power of each of PTRS port 0 and PTRS port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p) Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by P=10*log10(2*1)=2 times relative to the power of the PUSCH port, where the power increase has a linear value of 2, or 3 dB in the logarithmic domain. When a network device configures three PTRS ports (PTRS Ports 0 to 2), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 2 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS ports 0 to 2 may be increased by P=10*log10(3*1)=4.77 dB, i.e., three times, relative to the power of the PUSCH port, and the power increase has a linear value of three times.

[0272] The above is the value of P in partial coherent mode for 8T and three layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0273] In the case of 8T and three layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of three relative to the power of the PUSCH port, the power increase having a linear value of three, or 4.77 dB in the logarithmic domain.

[0274] For 8T and two layers, the UE may support up to four PTRS ports, as shown in the seventh diagram from the left in Figure 4f. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in only one layer in Ng0 and Ng2, and power is not configured in either layer in Ng1 or Ng3. When a network device configures one PTRS port (PTRS port 0 or PTRS port 2, where PTRS port 0 is used as an example), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P = 10 * log 10 (L Ng0 ) or P=3Q PThis may be expressed as -3 = 3 * 1 - 3 = 0 dB. In this case, the power of PTRS Port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 2), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS Port 0 and PTRS Port 2 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 2 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P = 10 * log 10(Q p *L p ) or P=3Q P -3 = 3 * 2 - 3 = 3 dB. Specifically, the power of each of PTRS port 0 and PTRS port 2 may be increased by P = 10 * log 10 (2 * 1) = 2 times relative to the power of the PUSCH port, where the power increase has a linear value of 2, or 3 dB in the logarithmic domain.

[0275] The above is the value of P in partial coherent mode in the case of 8T and two layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0276] In the case of 8T and two layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of two relative to the power of the PUSCH port, the power increase having a linear value of two or 3 dB in the logarithmic domain.

[0277] For 8T and one layer, the UE may support up to four PTRS ports, as shown in the eighth diagram from the left in Figure 4f. In the diagram, power is configured in one layer only in Ng0, and not in Ng1 to Ng3. In this case, the power increase of PTRS port 0 relative to the PUSCH port has a linear value of 0, or 0 dB in the logarithmic domain.

[0278] FIG. 4g shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=4, the number of PTRS ports is 4, and codebook type 2 is used.

[0279] In the case of 8T and 8 layers, the UE may support up to four PTRS ports, as shown in the first diagram from the left in Figure 4g. Power is configured in two layers within each Ng. When a network device configures one PTRS port (e.g., any one of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3, where PTRS Port 0 is used as an example herein), PTRS Port 0 only considers the constraint that the total power within Ng0 is fixed, i.e., it only borrows power from different layers within Ng0, and the PUSCH to PTRS power factor is P = 10 * log 10(L Ng0) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (any two of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS ports. For example, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p). Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, and the power increase has a linear value of four times. When a network device configures three PTRS ports (any three of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports. For example, when PTRS Port 0, PTRS Port 1, and PTRS Port 2 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p ). Specifically, the power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by P = 10 * log 10(3 * 2) = 7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other three PTRS ports. For example, when all of PTRS Ports 0 to 3 are transmitting, the PTRS power of each of PTRS Ports 0 to 3 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P = 10 * log 10(Qp *L p Specifically, the power of each of PTRS Port 0, PTRS Port 1, Port 2 and PTRS Port 3 may be increased by P=10*log10(4*2)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, and the power increase has a linear value of 8 times.

[0280] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0281] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0282] For 8T and seven layers, the UE may support up to four PTRS ports, as shown in the second diagram from the left in Figure 4g. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0, Ng2, and Ng3, and power is configured in only one layer in Ng1. When a network device configures one PTRS port (e.g., any one of PTRS port 0, PTRS port 2, and PTRS port 3, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=10*log10(L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When the network device configures PTRS port 1, PTRS port 1 only considers the constraint that the total power in Ng1 is fixed, i.e., it only borrows power from different layers in Ng1, and the PUSCH to PTRS power factor is P=10*log10(L Ng1) In this case, the power of PTRS port 1 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (any two of PTRS ports 0 to 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS port 0 and PTRS port 1 are both transmitting, the PTRS power of each of PTRS port 0 and PTRS port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p) Specifically, the power of PTRS port 0 (and the same for PTRS port 2 or 3 in this case) may be increased by P=10*log10(2*2)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, where the power increase has a linear value of 4 times, and the power of PTRS port 1 may be increased by P=10*log10(2*1)=2 times relative to the power of the PUSCH port, where the power increase has a linear value of 2 times, or 3 dB in the logarithmic domain. When a network device configures three PTRS ports (any three of PTRS ports 0 to 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 2 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports, and may be increased by borrowing power not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p). Specifically, the power of each of PTRS Port 0 and PTRS Port 2 (alternatively, PTRS Port 0 and PTRS Port 3, or PTRS Port 2 and PTRS Port 3) may be increased by P=10*log10(3*2)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, where the power increase has a linear value of 6 times, and the power of PTRS Port 1 may be increased by P=10*log10(3*1)=4.77 dB, i.e., 3 times, relative to the power of the PUSCH port, where the power increase has a linear value of 3 times. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission states of the other three PTRS ports. For example, if all of PTRS ports 0-3 are transmitting, the PTRS power of each of PTRS ports 0-3 may be increased by borrowing power not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p Specifically, the power of each of PTRS port 0, PTRS port 2, and PTRS port 3 may be increased by P=10*log10(4*2)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, with the power increase having a linear value of 8 times, and the power of PTRS port 1 may be increased by P=10*log10(4*1)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, with the power increase having a linear value of 4 times.

[0283] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0284] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0285] For 8T and six layers, the UE may support up to four PTRS ports, as shown in the third diagram from the left in Figure 4g. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0 and Ng3, and power is configured in only one layer in Ng1 and Ng2. When a network device configures one PTRS port (e.g., either PTRS port 0 or PTRS port 3, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=10*log10(L Ng0 ) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., either one of PTRS Port 1 and PTRS Port 2, where PTRS Port 1 is used as an example herein), PTRS Port 1 only considers the constraint that the total power in Ng1 is fixed, i.e., it only borrows power from different layers in Ng1, and the PUSCH to PTRS power factor is P=10*log10(L Ng3) In this case, the power of PTRS Port 1 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., any two of PTRS Ports 0 to 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, if PTRS Port 0 (alternatively, PTRS Port 3) and PTRS Port 1 (alternatively, PTRS Port 2) are both transmitting, the PTRS power of each of PTRS Ports 0 and 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *L p) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*2)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, where the power increase has a linear value of 4 times, and the power of PTRS port 1 may be increased by P=10*log10(2*1)=2 times relative to the power of the PUSCH port, where the power increase has a linear value of 2 times, or 3 dB in the logarithmic domain. When a network device configures three PTRS ports (any three of PTRS ports 0 to 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission states of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1 (alternatively, PTRS Port 2), and PTRS Port 3 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 3 is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports, and may be increased by borrowing power not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p) Specifically, the power of PTRS port 1 may be increased by P=10*log10(3*1)=4.77 dB, i.e., three times, relative to the power of the PUSCH port, with the power increase having a linear value of three times, and the power of each of PTRS port 0 and PTRS port 3 may be increased by P=10*log10(3*2)=7.78 dB, i.e., six times, relative to the power of the PUSCH port, with the power increase having a linear value of six times. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission states of the other three PTRS ports. For example, if all of PTRS ports 0-3 are transmitting, the PTRS power of each of PTRS ports 0-3 may be increased by borrowing power not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS Port 0 and PTRS Port 3 may be increased by P=10*log10(4*2)=9 dB, i.e., 8 times, relative to the power of the PUSCH port, with the power increase having a linear value of 8 times, and the power of each of PTRS Port 1 and PTRS Port 2 may be increased by P=10*log10(4*1)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, with the power increase having a linear value of 4 times.

[0286] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0287] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0288] For 8T and five layers, the UE may support up to four PTRS ports, as shown in the fourth diagram from the left in Figure 4g. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0 and Ng3, power is configured at only one layer in Ng2, and power is not configured at any layer in Ng1. When the PTRS ports configured by the network device include PTRS port 1, the power of PTRS port 1 is increased by 0 times relative to the power of the PUSCH port. When a network device configures one PTRS port (e.g., PTRS port 0 or PTRS port 3, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH to PTRS power factor is P=10*log10(L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 2), PTRS port 2 only considers the constraint that the total power in Ng2 is fixed, i.e., it only borrows power from different layers in Ng2, and the PUSCH to PTRS power factor is P=10*log10(L Ng2) In this case, the power of PTRS port 2 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., PTRS port 0 and PTRS port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS port 0 and PTRS port 3 are both transmitting, the PTRS power of each of PTRS port 0 and PTRS port 3 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ). Specifically, the power of each of PTRS Port 0 and PTRS Port 3 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, with the power increase having a linear value of four times. When a network device configures two PTRS ports (e.g., PTRS Port 0 (alternatively, PTRS Port 3) and PTRS Port 2), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when both PTRS Port 0 and PTRS Port 2 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 2 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the formula for determining the power coefficient of the PTRS port is P=10*log10(Q p *Lp ) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*2)=6 dB, i.e., 4 times, relative to the power of the PUSCH port, where the power increase has a linear value of 4 times, and the power of PTRS port 2 may be increased by P=10*log10(2*1)=2 times relative to the power of the PUSCH port, where the power increase has a linear value of 2 times, or 3 dB in the logarithmic domain. When a network device configures three PTRS ports (PTRS port 0, PTRS port 2, and PTRS port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 2, and PTRS Port 3 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 2, and PTRS Port 3 is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by other PTRS ports, and may be increased by borrowing power not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p Specifically, the power of each of PTRS port 0 and PTRS port 3 may be increased by P=10*log10(3*2)=7.78 dB, i.e., 6 times, relative to the power of the PUSCH port, with the power increase having a linear value of 6 times, and the power of PTRS port 2 may be increased by P=10*log10(3*1)=4.77 dB, i.e., 3 times, relative to the power of the PUSCH port, with the power increase having a linear value of 3 times.

[0289] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0290] In the case of 8T and five layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0291] For 8T and four layers, the UE may support up to four PTRS ports, as shown in the fifth diagram from the left in Figure 4g. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0 and Ng1, and not at any layer in Ng2 and Ng3. When the PTRS ports configured by the network device include PTRS port 2 and / or PTRS port 3, the power of PTRS port 2 and PTRS port 3 is increased by 0 times relative to the power of the PUSCH port. When a network device configures one PTRS port (either PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng0) In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by P=10*log10(2*2)=6 dB, i.e., four times, relative to the power of the PUSCH port, and the power increase has a linear value of four times.

[0292] The above is the value of P in partial coherent mode for 8T and 4 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0293] In the case of 8T and four layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of four relative to the power of the PUSCH port, the power increase having a linear value of four or 6 dB in the logarithmic domain.

[0294] For 8T and three layers, the UE may support up to four PTRS ports, as shown in the sixth diagram from the left in Figure 4g. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0, power is configured at only one layer in Ng1, and power is not configured at either layer in Ng2 or Ng3. When the PTRS ports configured by the network device include PTRS port 2 and / or PTRS port 3, the power of each of PTRS port 2 and PTRS port 3 is increased by 0 times relative to the power of the PUSCH port. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng0 ) In this case, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., PTRS port 1), PTRS port 1 only considers the constraint that the total power in Ng1 is fixed, i.e., it only borrows power from different layers in Ng1, and the PUSCH to PTRS power factor is P=10*log10(L Ng1) In this case, the power of PTRS Port 1 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port and is not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=10*log10(Q p *L p ) Specifically, the power of PTRS port 0 may be increased by P=10*log10(2*2)=6 dB relative to the power of the PUSCH port, i.e., by a factor of 4, where the power increase has a linear value of 4, and the power of PTRS port 1 may be increased by P=10*log10(2*1)=2 relative to the power of the PUSCH port, where the power increase has a linear value of 2, or 3 dB in the logarithmic domain.

[0295] The above is the value of P in partial coherent mode for 8T and three layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0296] In the case of 8T and three layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of three relative to the power of the PUSCH port, the power increase having a linear value of three, or 4.77 dB in the logarithmic domain.

[0297] For 8T and two layers, the UE may support up to four PTRS ports, as shown in the seventh diagram from the left in Figure 4g. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0, and power is not configured at any layer in Ng1-Ng3. When the PTRS ports configured by the network device include at least one of PTRS ports 1-3, the power of each of PTRS ports 1-3 is increased by 0 times relative to the power of the PUSCH port. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng0 ) or P=3Q P This may be expressed as -3=3*1-3=0 dB, where the power of PTRS port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times, or 0 dB in the logarithmic domain.

[0298] The above is the value of P in partial coherent mode in the case of 8T and two layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0299] In the case of 8T and two layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode the power of PTRS port 0 may be increased by a factor of two relative to the power of the PUSCH port, the power increase having a linear value of two or 3 dB in the logarithmic domain.

[0300] For 8T and one layer, the UE may support up to four PTRS ports, as shown in the eighth diagram from the left in Figure 4g. In the diagram, power is configured in one layer only in Ng0, and not in Ng1 to Ng3. In this case, the power increase of PTRS port 0 relative to the PUSCH port has a linear value of 0, or 0 dB in the logarithmic domain.

[0301] 4b to 4g, how to determine the power coefficients in the partially coherent transmission mode in one codebook format has been described above. In the codebooks shown in FIGS. 4b to 4g, the codebooks in each Ng are fully coherent.

[0302] 4h to 4m, how to determine the power coefficient in the partially coherent transmission mode in other codebook formats will be described below. In the codebooks shown in FIGS. 4h to 4m, the power within each Ng is the same, and different PUSCH ports are preferentially used within one Ng, and different Ngs are preferentially used.

[0303] Case (3-2): Ng=2, and the number of PTRS ports is 2.

[0304] This case corresponds to a partially coherent transmission scenario. The power within each Ng is the same, and different PUSCH ports are preferentially used within one Ng, and different Ngs are preferentially used. Based on different codebook formats (including Type 1 and Type 2), the PUSCH to PTRS power coefficient per RE per layer in different cases is described below.

[0305] FIG. 4h shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=2, the number of PTRS ports is 2, and codebook type 1 is used.

[0306] In the case of 8T and eight layers, as shown in the first diagram from the left in Figure 4h, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in four layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P+3. In this case, the power of PTRS Port 0 is increased by 6 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE also depends on the transmission status of the other PTRS port. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, which is the power of the PUSCH port associated with the PTRS of the PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=3Q P +3. Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by 9 dB relative to the power of the PUSCH port.

[0307] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0308] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0309] For 8T and seven layers, the UE may support up to two PTRS ports, as shown in the second diagram from the left in Figure 4h. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in three layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P +1.77. In this case, the power of PTRS Port 0 is increased by 4.77 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=3Q P +1.77. Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by 7.77 dB relative to the power of the PUSCH port.

[0310] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0311] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0312] For 8T and six layers, the UE may support up to two PTRS ports, as shown in the third diagram from the left in Figure 4h. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in three layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P+1.77. In this case, the power of PTRS Port 0 is increased by 4.77 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=3Q P +1.77. Specifically, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by 7.77 dB relative to the power of the PUSCH port.

[0313] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0314] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0315] For 8T and five layers, as shown in the fourth diagram from the left in Figure 4h, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in two layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P In this case, the power of PTRS Port 0 is increased by 3 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=3Q P Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by 6 dB relative to the power of the PUSCH port.

[0316] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0317] In the case of 8T and 5 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0318] In the case of 8T and four layers, as shown in the fifth diagram from the left in Figure 4h, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in two layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. PIn this case, the power of PTRS Port 0 is increased by 3 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=3Q P Specifically, the power of each of PTRS port 0 and PTRS port 1 may be increased by 6 dB relative to the power of the PUSCH port.

[0319] The above is the value of P in partial coherent mode for 8T and 4 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0320] In the case of 8T and four layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of four relative to the power of the PUSCH port, the power increase having a linear value of four or 6 dB in the logarithmic domain.

[0321] In the case of 8T and three layers, as shown in the sixth diagram from the left in Figure 4h, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in one layer in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P The power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=3Q P Specifically, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. P -3 = May be increased by 3dB.

[0322] The above is the value of P in partial coherent mode for 8T and three layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0323] In the case of 8T and three layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of three relative to the power of the PUSCH port, the power increase having a linear value of three, or 4.77 dB in the logarithmic domain.

[0324] In the case of 8T and two layers, the UE may support up to two PTRS ports, as shown in the seventh diagram from the left in Figure 4h. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in one layer in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. PThe power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the formula for determining the power coefficient of a PTRS port is P=3Q P Specifically, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. P -3 = May be increased by 3dB.

[0325] The above is the value of P in partial coherent mode in the case of 8T and two layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0326] In the case of 8T and two layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of two relative to the power of the PUSCH port, the power increase having a linear value of two or 3 dB in the logarithmic domain.

[0327] For 8T and one layer, the UE may support up to two PTRS ports, as shown in the eighth diagram from the left in Figure 4h. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in one layer in Ng0 and not configured in Ng1. When the network device configures PTRS port 0, the power increase of PTRS port 0 relative to the PUSCH port has a linear value of 0, or 0 dB in the logarithmic domain.

[0328] FIG. 4i shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=2, the number of PTRS ports is 2, and codebook type 2 is used.

[0329] In the case of 8T and eight layers, as shown in the first diagram from the left in Figure 4i, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in four layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P+3. In this case, the power of PTRS Port 0 is increased by 6 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE also depends on the transmission status of the other PTRS port. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 is increased by P=3Q relative to the power of the PUSCH port. P It may be increased by +3=9dB.

[0330] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0331] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0332] For 8T and seven layers, as shown in the second diagram from the left in Figure 4i, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in three layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, here PTRS port 0 is used as an example), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P +1.77. In this case, the power of PTRS Port 0 is increased by 4.77 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 is increased by P=3Q relative to the power of the PUSCH port. P It may be increased by +1.77=7.77 dB.

[0333] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0334] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0335] For 8T and six layers, as shown in the third diagram from the left in Figure 4i, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in three layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P+1.77. In this case, the power of PTRS Port 0 is increased by 4.77 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 is increased by P=3Q relative to the power of the PUSCH port. P It may be increased by +1.77=7.77 dB.

[0336] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0337] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0338] For 8T and five layers, as shown in the fourth diagram from the left in Figure 4c, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in two layers in both Ng0 and Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. P In this case, the power of PTRS Port 0 is increased by 3 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, and may be increased by borrowing power not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 is increased by P=3Q relative to the power of the PUSCH port. P It may be increased by 6 dB.

[0339] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0340] In the case of 8T and 5 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0341] For 8T and four layers, the UE may support up to two PTRS ports, as shown in the fifth diagram from the left in Figure 4i. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in the four layers in Ng0, and power is not configured in any layer in Ng1. When the network device configures PTRS port 0, the power of PTRS port 0 is P=3Q with respect to the power of the PUSCH ports. P =3dB increase.

[0342] For 8T and three layers, the UE may support up to two PTRS ports, as shown in the sixth diagram from the left in Figure 4i. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in the three layers in Ng0, and power is not configured in any layer in Ng1. When the network device configures PTRS port 0, the power of PTRS port 0 is P=3Q relative to the power of the PUSCH ports. P -3 = Increase by 3dB.

[0343] For 8T and two layers, the UE may support up to two PTRS ports, as shown in the seventh diagram from the left in Figure 4i. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured in two layers in Ng0, and power is not configured in any layer in Ng1. When the network device configures PTRS port 0, the power of PTRS port 0 is P=3Q relative to the power of the PUSCH port. P -3 = Increase by 3dB.

[0344] For 8T and one layer, the UE may support up to two PTRS ports, as shown in the eighth diagram from the left in Figure 4i. Ng0 includes uplink PUSCH ports 0 to 3, and Ng1 includes uplink PUSCH ports 4 to 7. It can be seen that power is configured at one layer in Ng0 and not configured at any layer in Ng1. When the network device configures PTRS port 0, the power of PTRS port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times or 0 dB in the logarithmic domain.

[0345] Case (4-2): Ng=4 and the number of PTRS ports is 2.

[0346] This case corresponds to a partially coherent transmission scenario. The power within each Ng is the same, and different PUSCH ports are preferentially used within one Ng, and different Ngs are preferentially used. Based on different codebook formats (including Type 1 and Type 2), the PUSCH to PTRS power coefficient per RE per layer in different cases is described below.

[0347] FIG. 4j shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=4, the number of PTRS ports is 2, and codebook type 1 is used.

[0348] For 8T and eight layers, the UE may support up to two PTRS ports, as shown in the first diagram from the left in Figure 4d. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at the two layers within Ng0-Ng3. PTRS port 0 corresponds to Ng0 and Ng1, and PTRS port 1 corresponds to Ng2 and Ng3. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example in this specification), if the Ng in which PTRS port 0 is located is Ng0 or Ng1, PTRS port 0 only considers the constraint that the total power in Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers in Ng0 or Ng1, and the PUSCH to PTRS power coefficient is P=10*log10(L Ng0又はNg1 ) In this case, the power of PTRS port 0 is P=3Q with respect to the power of the PUSCH port. P = 3 dB. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, which is not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 is increased by P = 3 dB relative to the power of the PUSCH port. PIt may be increased by 6 dB.

[0349] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0350] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0351] For 8T and seven layers, as shown in the second diagram from the left in Figure 4j, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers within Ng0-Ng2, and power is configured in only one layer within Ng3. When a network device configures one PTRS port (PTRS port 10 or PTRS port 1, where PTRS port 0 is used as an example herein), PTRS port 0 only considers the constraint that the total power within Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers within Ng0 or Ng1, and the PUSCH-to-PTRS power factor is P=3Q. PThe power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS port 0 and PTRS port 1 is P= 3QP -3 = May be increased by 3dB.

[0352] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0353] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0354] For 8T and six layers, as shown in the third diagram from the left in Figure 4j, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers for both Ng0 and Ng1, and power is configured in one layer for both Ng2 and Ng3. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used herein), PTRS port 0 only considers the constraint that the total power in Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers in Ng0 or Ng1, and the PUSCH-to-PTRS power factor is P=3Q. P The power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. P -3 = May be increased by 3dB.

[0355] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0356] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0357] For 8T and five layers, as shown in the fourth diagram from the left in Figure 4j, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers within Ng0 and power is configured in one layer within Ng1 to Ng3. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, here PTRS port 0 is used as an example), PTRS port 0 only considers the constraint that the total power within Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers within Ng0 or Ng1, and the PUSCH-to-PTRS power factor is P=3Q. PThe power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. P -3 = May be increased by 3dB.

[0358] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0359] In the case of 8T and 5 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0360] For 8T and four layers, as shown in the fifth diagram from the left in Figure 4j, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at one layer within Ng0 to Ng3. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, here PTRS port 0 is used as an example), PTRS port 0 only considers the constraint that the total power within Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers within Ng0 or Ng1, and the PUSCH-to-PTRS power factor is P=3Q. P The power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. P -3 = May be increased by 3dB.

[0361] The above is the value of P in partial coherent mode for 8T and 4 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0362] In the case of 8T and four layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of four relative to the power of the PUSCH port, the power increase having a linear value of four or 6 dB in the logarithmic domain.

[0363] For 8T and three layers, as shown in the sixth diagram from the left in Figure 4j, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in only one layer within Ng0-Ng2, and not in any layer within Ng3. The power of the PTRS ports is compared to the power of the PUSCH ports by P = (3Q p The power of each PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. Specifically, when a network device configures one PTRS port (PTRS Port 0 or PTRS Port 1), the power of the PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), the power of each PTRS Port 0 and PTRS Port 1 may be increased by P = 3 * 2 - 3 = 3 dB compared to the power of the PUSCH port.

[0364] The above is the value of P in partial coherent mode for 8T and three layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0365] In the case of 8T and three layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of three relative to the power of the PUSCH port, the power increase having a linear value of three, or 4.77 dB in the logarithmic domain.

[0366] For 8T and two layers, as shown in the seventh diagram from the left in Figure 4j, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in only one layer in Ng0 and Ng2, and not in either layer in Ng1 and Ng3. The power of the PTRS ports is compared to the power of the PUSCH ports by P = (3Q p The power of each PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. Specifically, when a network device configures one PTRS port (PTRS Port 0 or PTRS Port 1), the power of the PTRS port may be increased by P = 3 * 1 - 3 = 0 dB compared to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), the power of each PTRS Port 0 and PTRS Port 1 may be increased by P = 3 * 2 - 3 = 3 dB compared to the power of the PUSCH port.

[0367] The above is the value of P in partial coherent mode in the case of 8T and two layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0368] In the case of 8T and two layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of two relative to the power of the PUSCH port, the power increase having a linear value of two or 2 dB in the logarithmic domain.

[0369] For 8T and one layer, the UE may support up to two PTRS ports, as shown in the eighth diagram from the left in Figure 4j. Whether the network device configures one or two PTRS ports, the power increase of the PTRS port relative to the PUSCH port has a linear value of 0 times or is 0 dB in the logarithmic domain.

[0370] FIG. 4k shows an example of a precoding matrix for 8T and layers 1 to 8 when Ng=2, the number of PTRS ports is 2, and codebook type 2 is used.

[0371] In the case of 8T and eight layers, as shown in the first diagram from the left in Figure 4k, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers within Ng0 to Ng3. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example in this specification), if the Ng in which PTRS port 0 is located is Ng0 or Ng1, PTRS port 0 only considers the constraint that the total power within Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers within Ng0 or Ng1, and the PUSCH-to-PTRS power coefficient is P=3Q p In this case, the power of PTRS Port 0 is increased by 3 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. p It may be increased by 6 dB.

[0372] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0373] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0374] For 8T and seven layers, as shown in the second diagram from the left in Figure 4k, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at one layer in Ng0, Ng2, and Ng3, and power is configured at only one layer in Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), if the Ng in which PTRS port 0 is located is Ng0 or Ng1, PTRS port 0 only considers the constraint that the total power in Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers in Ng0 or Ng1, and the PUSCH-to-PTRS power factor is P=3Q pThe power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. p -3 = May be increased by 3dB.

[0375] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0376] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0377] In the case of 8T and six layers, as shown in the third diagram from the left in Figure 4k, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0 and Ng3, and power is configured in one layer in Ng1 and Ng2. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), if the Ng in which PTRS port 0 is located is Ng0 or Ng1, PTRS port 0 only considers the constraint that the total power in Ng0 or Ng1 is fixed, i.e., it only borrows power from different layers in Ng0 or Ng1, and the PUSCH-to-PTRS power factor is P=3Q p -310*log10(L Ng0 ) In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0 or Ng1, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. p -3 = May be increased by 3dB.

[0378] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0379] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0380] For 8T and five layers, as shown in the fourth diagram from the left in Figure 4k, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0 and Ng3, power is configured at one layer in Ng2, and power is not configured at any layer in Ng1. When a network device configures one PTRS port (PTRS port 0 or PTRS port 1, where PTRS port 0 is used as an example herein), if the Ng in which PTRS port 0 is located is Ng0, PTRS port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0, and the PUSCH-to-PTRS power factor is P=3Q. pThe power of PTRS Port 0 may be expressed as -3. In this case, the power of PTRS Port 0 is increased by 0 dB relative to the power of the PUSCH port. When a network device configures two PTRS ports (PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located (e.g., the Ng in which PTRS Port 0 is located is Ng0, and the Ng in which PTRS Port 1 is located is Ng2 or Ng3), the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. Specifically, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS port 0 and PTRS port 1 is P=3Q with respect to the power of the PUSCH port. p -3 = May be increased by 3dB.

[0381] The above is the value of P in partial coherent mode for 8T and 5 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0382] In the case of 8T and 5 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of 5 relative to the power of the PUSCH port, the power increase having a linear value of 5 or 7 dB in the logarithmic domain.

[0383] For 8T and four layers, the UE may support up to two PTRS ports, as shown in the fifth diagram from the left in Figure 4k. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers in Ng0 and Ng1, and power is not configured in any layer in Ng2 and Ng3. Thus, when the network device configures PTRS port 0, the power of PTRS port 0 is P=3Q compared to the power of the PUSCH ports. p It may be increased by -3=3*2-3=3dB.

[0384] The above is the value of P in partial coherent mode for 8T and 4 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0385] In the case of 8T and four layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of four relative to the power of the PUSCH port, the power increase having a linear value of four or 6 dB in the logarithmic domain.

[0386] For 8T and three layers, as shown in the sixth diagram from the left in Figure 4e, a UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0, power is configured at one layer in Ng1, and power is not configured at either layer in Ng2 or Ng3. The power of the PTRS ports is compared to the power of the PUSCH ports by P = (3Q p Specifically, when a network device configures one PTRS port (e.g., PTRS port 0), the power of PTRS port 0 may be increased by P=3*2-3=3 dB compared to the power of the PUSCH port.

[0387] The above is the value of P in partial coherent mode for 8T and three layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0388] In the case of 8T and three layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of three relative to the power of the PUSCH port, the power increase having a linear value of three, or 4.77 dB in the logarithmic domain.

[0389] For 8T and two layers, as shown in the seventh diagram from the left in Figure 4k, the UE may support up to two PTRS ports. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers only in Ng0, and not in any of the layers in Ng1 to Ng3. Therefore, the power of PTRS port 0 is P=3Q compared to the power of the PUSCH ports. p It may be increased by -3=3*2-3=3dB.

[0390] The above is the value of P in partial coherent mode in the case of 8T and two layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0391] In the case of 8T and two layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS port 0 and PTRS port 1 may be increased by a factor of two relative to the power of the PUSCH port, the power increase having a linear value of two or 2 dB in the logarithmic domain.

[0392] For 8T and one layer, the UE may support up to two PTRS ports, as shown in the eighth diagram from the left in Figure 4k. Whether the network device configures one or two PTRS ports, the power increase of the PTRS port relative to the PUSCH port has a linear value of 0 times or is 0 dB in the logarithmic domain.

[0393] Case (5-2): Ng=4, and the number of PTRS ports is 4.

[0394] This case corresponds to a partially coherent transmission scenario. The power within each Ng is the same, and different PUSCH ports are preferentially used within one Ng, and different Ngs are preferentially used. Based on different codebook formats (including Type 1 and Type 2), the PUSCH to PTRS power coefficient per RE per layer in different cases is described below.

[0395] For 8T and eight layers, the UE may support up to four PTRS ports, as shown in the first diagram from the left in Figure 4l. Power is configured in two layers within each Ng. When a network device configures one PTRS port (e.g., any one of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3, where PTRS Port 0 is used as an example in this specification), PTRS Port 0 only considers the constraint that the total power within Ng0 is fixed, i.e., it only borrows power from different layers within Ng0. In this case, the power of PTRS Port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (any two of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS ports. For example, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by four times relative to the power of the PUSCH port, where the power increase has a linear value of four or is 6 dB in the logarithmic domain. When a network device configures three PTRS ports (any three of PTRS Port 0, PTRS Port 1, PTRS Port 2 and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH to PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports.For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 2 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by borrowing power from the PUSCH port associated with the PTRS of the PTRS port on frequency domain resources occupied by other PTRS ports, not used for transmitting data and PTRS. In this case, the power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by a factor of six relative to the power of the PUSCH port, where the power increase has a linear value of six, or 7.78 dB in the logarithmic domain. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other three PTRS ports. For example, if all of PTRS Ports 0-3 are transmitting, the PTRS power of each of PTRS Ports 0-3 may be increased by borrowing power from the PUSCH port associated with the PTRS of the PTRS Port on frequency domain resources occupied by other PTRS Ports, not used to transmit data and PTRS. In this case, the power of each of PTRS Ports 0, 1, 2, and 3 may be increased by a factor of 8 relative to the power of the PUSCH port, where the power increase has a linear value of 8, or 9 dB in the logarithmic domain.

[0396] The above is the value of P in partial coherent mode in the case of 8T and 8 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0397] In the case of 8T and 8 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by 8 times relative to the power of the PUSCH port, the power increase having a linear value of 8 times or 9 dB in the logarithmic domain.

[0398] For 8T and seven layers, the UE may support up to four PTRS ports, as shown in the second diagram from the left in Figure 4f. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers within Ng0-Ng2, and power is configured at only one layer within Ng3. When a network device configures one PTRS port (e.g., any one of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3, where PTRS Port 0 is used as an example herein), PTRS Port 0 only considers the constraint that the total power within Ng0 is fixed, i.e., it only borrows power from different layers within Ng0. In this case, the power of PTRS Port 0 is increased by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (any two of PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, when PTRS Port 0 and PTRS Port 1 are both transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port and is not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by a factor of 2 relative to the power of the PUSCH port, with the power increase having a linear value of 4, or 3 dB in the logarithmic domain.When a network device configures three PTRS ports (PTRS Port 0, PTRS Port 1, PTRS Port 2, and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other two PTRS ports. For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 2 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by borrowing power not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports. In this case, the power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 2 may be increased by three times relative to the power of the PUSCH port, and the power increase has a linear value of three, or 4.77 dB in the logarithmic domain. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other three PTRS ports. For example, if all of PTRS ports 0-3 are transmitting, the PTRS power of each of PTRS ports 0-3 may be increased by borrowing power from the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS ports, which is not used to transmit data and PTRS. In this case, the power of each of PTRS ports 0, 1, 2, and 3 may be increased by a factor of four relative to the power of the PUSCH port, where the power increase has a linear value of four or 6 dB in the logarithmic domain.

[0399] The above are the values ​​of P in partial coherent mode for 8T and 7 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0400] In the case of 8T and 7 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by 7 times relative to the power of the PUSCH port, the power increase having a linear value of 7 times or 8.45 dB in the logarithmic domain.

[0401] For 8T and six layers, the UE may support up to four PTRS ports, as shown in the third diagram from the left in Figure 4l. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured at two layers in Ng0 and Ng1, and at only one layer in Ng2 and Ng3. When a network device configures one PTRS port (e.g., either PTRS Port 0 or PTRS Port 1, where PTRS Port 0 is used as an example herein), PTRS Port 0 only considers the constraint that the total power in Ng0 is fixed, i.e., it only borrows power from different layers in Ng0. In this case, the power of PTRS Port 0 is increased by a factor of 2 relative to the power of the PUSCH port, and the power increase has a linear value of 2, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., either PTRS Port 2 or PTRS Port 3, where PTRS Port 3 is used as an example in this specification), PTRS Port 3 only considers the constraint that the total power in Ng3 is fixed, i.e., it only borrows power from different layers in Ng3. In this case, the power of PTRS Port 3 is increased by a factor of 0 relative to the power of the PUSCH port, and the power increase has a linear value of 0, or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., PTRS port 0 and PTRS port 1), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH to PTRS power coefficient per RE per layer further depends on the transmission status of the other PTRS ports.For example, if both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power from the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, which is not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., PTRS Port 2 and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, if both PTRS Port 2 and PTRS Port 3 are transmitting, the PTRS power of each of PTRS Port 2 and PTRS Port 3 may be increased by borrowing power from the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port, which is not used to transmit data and PTRS. In this case, the power of each of PTRS Port 2 and PTRS Port 3 may be increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures three PTRS ports (any three of PTRS Ports 0 through 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other two PTRS ports.For example, if PTRS Port 0, PTRS Port 1, and PTRS Port 3 are all transmitting, the PTRS power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 3 may be increased by borrowing power from the PUSCH port associated with the PTRS of the PTRS port on frequency domain resources occupied by other PTRS ports and not used to transmit data and PTRS. In this case, the power of each of PTRS Port 0, PTRS Port 1, and PTRS Port 3 may be increased by a factor of three relative to the power of the PUSCH port, where the power increase has a linear value of three, or 4.77 dB in the logarithmic domain. When a network device configures four PTRS ports, in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other three PTRS ports. For example, if all of PTRS ports 0-3 are transmitting, the PTRS power of each of PTRS ports 0-3 may be increased by borrowing power from the PUSCH port associated with the PTRS of the PTRS port on frequency domain resources occupied by other PTRS ports, not used to transmit data and PTRS. In this case, the power of each of PTRS ports 0-3 may be increased by a factor of four relative to the power of the PUSCH port, where the power increase has a linear value of four, or 6 dB in the logarithmic domain.

[0402] The above is the value of P in partial coherent mode for 8T and 6 layers, when a PTRS port can borrow power from different layers within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports.

[0403] In the case of 8T and 6 layers, when a PTRS port cannot borrow power from a different layer within the Ng in which it is located and / or power on frequency domain resources occupied by other PTRS ports, in partial coherent mode, the power of each of PTRS ports 0 to 3 may be increased by a factor of 6 relative to the power of the PUSCH port, the power increase having a linear value of 6, or 7.78 dB in the logarithmic domain.

[0404] For 8T and five layers, a UE may support up to four PTRS ports, as shown in the fourth diagram from the left in Figure 4l. Ng0 includes uplink PUSCH ports 0 and 1, Ng1 includes uplink PUSCH ports 2 and 3, Ng2 includes uplink PUSCH ports 4 and 5, and Ng3 includes uplink PUSCH ports 6 and 7. It can be seen that power is configured in two layers within Ng0 and in only one layer within Ng1-Ng3. When a network device configures one PTRS port (e.g., PTRS port 0), PTRS port 0 only considers the constraint that the total power within Ng0 is fixed, i.e., it only borrows power from different layers within Ng0. In this case, the power of PTRS port 0 is increased by a factor of two relative to the power of the PUSCH port, and the power increase has a linear value of two, or 3 dB in the logarithmic domain. When a network device configures one PTRS port (e.g., any one of PTRS Port 1, PTRS Port 2, and PTRS Port 3, where PTRS Port 3 is used as an example herein), PTRS Port 3 only considers the constraint that the total power in Ng3 is fixed, i.e., it only borrows power from different layers in Ng3. In this case, the power of PTRS Port 3 increases by 0 times relative to the power of the PUSCH port, and the power increase has a linear value of 0 times or 0 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., PTRS Port 0 and PTRS Port 1), in addition to considering that each PTRS port borrows power from different layers in the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per RE per layer further depends on the transmission status of the other PTRS ports. For example, when both PTRS Port 0 and PTRS Port 1 are transmitting, the PTRS power of each of PTRS Port 0 and PTRS Port 1 may be increased by borrowing power that is the power of the PUSCH port associated with the PTRS of the PTRS port on frequency domain resources occupied by other PTRS ports and that is not used to transmit data and PTRS.In this case, the power of each of PTRS Port 0 and PTRS Port 1 may be increased by a factor of two relative to the power of the PUSCH port, with the power increase having a linear value of two or 3 dB in the logarithmic domain. When a network device configures two PTRS ports (e.g., PTRS Port 2 and PTRS Port 3), in addition to considering that each PTRS port borrows power from a different layer within the Ng in which the PTRS port is located, the PUSCH-to-PTRS power coefficient per layer per RE further depends on the transmission status of the other PTRS port. For example, if both PTRS Port 2 and PTRS Port 3 are transmitting, the PTRS power of each of PTRS Port 2 and PTRS Port 3 may be increased by borrowing power that is not used to transmit data and PTRS, which is the power of the PUSCH port associated with the PTRS of the PTRS port on the frequency domain resources occupied by the other PTRS port. In this case, the power of each of PTRS Port 2 and PTRS Port 3 may be increased by a factor of two relative to the power of the PUSCH port, with the power increase having a linear v...

Claims

1. 1. A communication method comprising: The power coefficient P, the number of uplink transmission layers L, the number of precoding information and phase tracking reference signal (PTRS) ports Q P where P is a power ratio between the PTRS and a Physical Uplink Shared Channel (PUSCH) per resource element per layer, and the number of uplink transmission layers ranges from 1 to 8; receiving downlink control information, the downlink control information indicating at least one of the following information: first precoding information, a number of first uplink transmission layers, and a first sounding reference signal resource indicator (SRI); determining a first P corresponding to at least one of the first precoding information, the first number of uplink transmission layers, and the first SRI based on the at least one correspondence relationship and the downlink control information; A method comprising:

2. The method of claim 1 , further comprising transmitting a PRTS signal through at least one PTRS port based on the first P.

3. 1. A communication method comprising: The power coefficient P, the number of uplink transmission layers L, the number of precoding information and phase tracking reference signal (PTRS) ports Q P where P is a power ratio between the PTRS and the physical uplink shared channel per resource element per layer, and the number of uplink transmission layers ranges from 1 to 8; transmitting downlink control information, wherein the downlink control information indicates at least one of the following information: first precoding information, a first number of uplink transmission layers, and a first SRI; determining a first P corresponding to at least one of the first precoding information, the first number of uplink transmission layers, and the first SRI based on the at least one correspondence relationship and the downlink control information; A method comprising:

4. The method of claim 3 , further comprising receiving a PRTS signal through at least one PTRS port based on the first P.

5. In the same PUSCH transmission mode, L 1 <L 2 When is satisfied, P 1 ≦P 2 and L 1 and L 2 corresponds to the number of different uplink transmission layers, and P 1 is L 1 is the power coefficient corresponding to P 2 is L 2 is the power coefficient corresponding to the PUSCH transmission mode includes at least one of the following: a full coherent transmission mode, a partially coherent transmission mode, a non-coherent transmission mode, and a non-codebook-based transmission mode; The method according to claim 1 , wherein the first precoding information corresponds to at least one PUSCH transmission mode.

6. 6. The method according to claim 1, wherein in any one of the partially coherent transmission mode, the non-coherent transmission mode and the non-codebook-based transmission mode, the same PTRS port corresponds to a different P for the same L and different numbers of PTRS ports.

7. 7. The method according to claim 1, wherein in the partially coherent transmission mode, different PTRS ports correspond to different P for the same L.

8. 8. The method of claim 1, wherein the PTRS ports include a first PTRS port and a second PTRS port, the first PTRS port being associated with a first demodulation reference signal (DMRS) port, the first PTRS port corresponding to a first power coefficient, and the second PTRS port being associated with a second DMRS port, the second PTRS port corresponding to a second power coefficient.

9. When the value of L is 2, 4, 6, or 8, the value of P is Q P associated with the value of When the value of L is 3, 5, or 7, the value of P is Q P and associated with the PTRS port.

10. When the value of L is 2, 3, or 4, the value of P is Q P associated with the value of When the value of L is 6, the value of P is Q P and associated with said PTRS port, When the value of L is 5 or 7, the value of P is Q P 9. The method of claim 1, wherein the PTRS port and the DMRS port associated with the PTRS port are associated with the PTRS port.

11. During partially coherent transmission, The value of L is 2 and the value of P is P L2 and The value of L is 3, and the value of P is P L3 and The value of L is 4, and the value of P is P L4 and The value of L is 5, and the value of P is P L5 and The value of L is 6, and the value of P is P L6 and The value of L is 7, and the value of P is P L7 and P L2 =P L3 , P L4 =P L5 And P L6 =P L7 and P L2、 P L3、 P L4 , P L5 , P L6 and P L7 6. The method of claim 1, wherein L is 2, 3, 4, 5, 6 and 7, respectively.

12. P L2 <P L4 <P L6 The method of claim 11, wherein

13. The value of L is 1, and the value of P is P L1 and The value of L is 8, and the value of P is P L8 and P L1 <P L2< P L4 <P L6 <P L8 The method according to claim 11 or 12, wherein

14. P L2 The value of 3Q P -3 and P L4 The value of 3Q P and P L6 The value of 3Q P 14. The method of claim 11, wherein the saturation coefficient is +1.

77.

15. P L8 The value of 3Q P The method of claim 13, wherein the β-amino acid is 0.05 or 1.

0.

16. During partially coherent transmission, The value of L is 2 and the value of P is P' L2 and The value of L is 3, and the value of P is P' L3 and The value of L is 4, and the value of P is P' L4 and The value of L is 5, and the value of P is P' L5で can be, The value of L is 6, and the value of P is P' L6 and The value of L is 7, and the value of P is P' L7 and P' L2 =P' L3 =P' L4 =P' L5 =P' L6 =P' L7 and P' L2 , P' L3 , P' L4 , P' L5 , P' L6 and P' L7 6. The method of claim 1, wherein L is 2, 3, 4, 5, 6 and 7, respectively.

17. The value of L is 1, and the value of P is P' L1 and The value of L is 8, and the value of P is P' L8 and P' L1 <P' L2< <P' L8 17. The method of claim 16, wherein:

18. P' L2 The value of 3Q P The method of claim 16 or 17, wherein the pH is -3.

19. P' L8 The value of 3Q P 19. The method of claim 18, wherein:

20. During partially coherent transmission, The value of L is 4 and the value of P is P'' L4 and The value of L is 5 and the value of P is P'' L5 and The value of L is 6, and the value of P is P'' L6 and The value of L is 7, and the value of P is P'' L7 and The value of L is 8, and the value of P is P'' L8 and P'' L4 =P'' L5 =P'' L6 =P'' L7 =P'' L8 6. The method according to claim 1, wherein

21. P'' L4 The values ​​of are as follows: Q P When =1, P'' L4 =0, Q P When = 2, P'' L4 = 3, Q P = 3, P'' L4 =4.77, Q P = 4, P'' L4 21. The method of claim 20, wherein: =6.

22. During partially coherent transmission, The value of L is 2 and the value of P is P'' L2 and P'' L2 The value of 3Q P The method according to any one of claims 1 to 5, wherein the ρ is -3.

23. During partially coherent transmission, The value of L is 3 and the value of P'' is P L3 and P'' L3 The value of is as follows: Q P When =1, P'' L3 =0, Q P When = 2, P'' L3 = 3, Q P = 3, P'' L3 6. The method of claim 1, wherein ρ = 4.

77.

24. The value of P is P The number L of uplink transmission layers corresponding to one PTRS port among the PTRS ports P , and the number of uplink transmission layers corresponding to one antenna coherence group L Ng 24. The method according to claim 1, wherein the method is associated with at least one of the following:

25. The value of P is associated with a first parameter, the first parameter being Q P and L P or the first parameter is a product of Q P and L Ng 25. The method of any one of claims 1 to 24, wherein the product of

26. The value is P=10*log 10 (Q p *L p ) or P=10*log 10 (Q p *L Ng 26. The method of claim 25, wherein

27. In the fully coherent transmission mode, The method of claim 26, wherein the value of P is related to L.

28. Q p =1, and the value of P is P=10*log 10 The method of claim 27, wherein (L) is satisfied.

29. When L is 1, P is 0 dB, When L is 2, P is 3 dB, When L is 3, P is 4.77 dB, When L is 4, P is 6 dB, When L is 5, P is 6.99 dB, When L is 6, P is 7.78 dB, When L is 7, P is 8.45 dB, 29. The method of claim 27 or 28, wherein when L is 8, P is 9 dB.

30. In the partially coherent transmission mode, When the first parameter is 1, P is 0 dB; When the first parameter is 2, P is 3 dB; When the first parameter is 3, P is 4.77 dB; When the first parameter is 4, P is 6 dB; When the first parameter is 5, P is 7 dB; When the first parameter is 6, P is 7.78 dB; When the first parameter is 7, P is 8.45 dB; 27. The method of claim 25 or 26, wherein when the first parameter is 8, P is 9 dB.

31. In the non-coherent transmission mode, the value of P is Q P The method of claim 26, wherein the

32. L p =1 or L Ng =1, and the value is P=10*log 10 (Q p 32. The method of claim 31 , wherein

33. Q P When is 1, P is 0 dB, Q P When is 2, P is 3 dB, Q P When is 3, P is 4.77 dB, Q P 33. The method of claim 31 or 32, wherein P is 6 dB when is 4.

34. 34. The method of claim 1, wherein the number of PUSCH antenna ports is in the range of 5 to 8, and the number of uplink transmission layers is in the range of 1 to 4.

35. The number of PTRS ports is equal to the number of supported antenna coherence groups, N g 35. The method of any one of claims 1 to 34, wherein:

36. The number of uplink antennas is 8, and Q P and N g The correspondence between N g When is 1, Q P is 1, N g When is 2, Q P is 1, N g When is 2, Q P is 2, N g When is 4, Q P is 2, N g When is 4, Q P is 4 35. The method of any one of claims 1 to 34, comprising at least one of:

37. P is the sum of the following: the first coefficient α PTRS PUSCH , the second coefficient ρ PTRS PUSCH and the third coefficient β PT-RS,i At least one of ρ PTRS PUSCH =-α PTRS PUSCH [dB] and [Equation 1] and a k,l (p,μ) =β PT-RS,i r k and a k,l (p,μ) is the sequence of the PTRS signal, l is the time domain position corresponding to the PTRS signal, k is the frequency domain position corresponding to the PTRS signal, p is the port number, μ is the subcarrier spacing, and β PT-RS,i is the power coefficient, and r k 36. The method of any one of claims 1 to 35, wherein is a base sequence.

38. A communications device comprising a module configured to perform the method of any one of claims 1, 2 and 5 to 37, or comprising a module configured to perform the method of any one of claims 3 to 37.

39. A communication system including a first communication device and a second communication device, 38. A communication system, wherein the first communication device comprises a module configured to perform the method of any one of claims 1, 2 and 5 to 37, and the second communication device comprises a module configured to perform the method of any one of claims 3 to 37.

40. A communications device including a processor and a storage medium, A communications device, wherein the storage medium stores instructions that, when executed by the processor, cause the method of any one of claims 1, 2, and 5 to 37 to be realized, or the method of any one of claims 3 to 37 to be realized.

41. 1. A computer-readable storage medium, comprising: The computer-readable storage medium includes instructions that, when executed by a processor, cause the method of any one of claims 1, 2, and 5 to 37 to be realized, or the method of any one of claims 3 to 37 to be realized.

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