Power parameter determination method and device, and terminal

Abstract

Disclosed are a power parameter determination method, device and terminal, belonging to the technical field of communications, the power parameter determination method of the embodiment of the present application comprising: a terminal receiving a first message from a network side device, the first message being used for scheduling a first physical uplink shared channel (PUSCH) transmission, the first PUSCH transmission is associated with a first sounding reference signal (SRS) resource set and a second SRS resource set at the same time; the terminal determines a power parameter of a PTRS port associated with a target SRS resource set according to phase tracking reference signal PTRS port related information and a transmission parameter of a PUSCH transmission layer associated with the target SRS resource set; wherein the target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method, device and terminal for determining power parameters. Background Art

[0002] In a multi-antenna panel transmission scenario, multiple transmission layers of the Physical Uplink Shared Channel (PUSCH) may be transmitted by multiple panels. In the related art, the phase-tracking reference signal (PTRS) power parameter is determined by the number of PUSCH transmission layers, and it is assumed that one panel is transmitted. Therefore, the PTRS power parameter determination scheme of the related art cannot be applied to the multi-panel scenario, which results in poor terminal PUSCH transmission performance. Summary of the invention

[0003] The embodiments of the present application provide a power parameter determination method, device and terminal, which can solve the problem that the PTRS power parameter determination solution in the related art cannot be applied to multi-panel scenarios, resulting in poor terminal PUSCH transmission performance.

[0004] In a first aspect, a method for determining a power parameter is provided, the method comprising:

[0005] The terminal receives a first message from a network side device, where the first message is used to schedule a first physical uplink shared channel PUSCH transmission, where the first PUSCH transmission is simultaneously associated with a first sounding reference signal SRS resource set and a second SRS resource set;

[0006] The terminal determines the power parameter of the PTRS port associated with the target SRS resource set according to the phase tracking reference signal PTRS port related information and the transmission parameter corresponding to the PUSCH transmission layer associated with the target SRS resource set;

[0007] The target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

[0008] In a second aspect, a power parameter determination device is provided, which is applied to a terminal, and the device includes:

[0009] A receiving module, configured to receive a first message from a network side device, wherein the first message is used to schedule a first physical uplink shared channel PUSCH transmission, and the first PUSCH transmission is simultaneously associated with a first sounding reference signal SRS resource set and a second SRS resource set;

[0010] A determination module, configured to determine a power parameter of a PTRS port associated with a target SRS resource set according to information related to a phase tracking reference signal PTRS port and a transmission parameter corresponding to a PUSCH transmission layer associated with a target SRS resource set;

[0011] The target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

[0012] In a third aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0013] In a fourth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to: receive a first message from a network side device, the first message being used to schedule a first physical uplink shared channel PUSCH transmission, the first PUSCH transmission being simultaneously associated with a first detection reference signal SRS resource set and a second SRS resource set; the processor is used to: determine the power parameters of the PTRS port associated with the target SRS resource set based on information related to a phase tracking reference signal PTRS port and transmission parameters corresponding to a PUSCH transmission layer associated with the target SRS resource set; wherein the target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

[0014] In a fifth aspect, a communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the power parameter determination method as described in the first aspect.

[0015] In a sixth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0016] In a seventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

[0017] In an eighth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect.

[0018] In an embodiment of the present application, a terminal receives a first message from a network-side device, the first message is used to schedule a first PUSCH transmission, and the first PUSCH transmission is simultaneously associated with a first SRS resource set and a second SRS resource set; the terminal determines the power parameter of the PTRS port associated with the target SRS resource set according to the PTRS port related information and the TPMI associated with the target SRS resource set; wherein the target SRS resource set is any one of the first SRS resource set and the second SRS resource set. In this way, the power parameter of the PTRS port associated with each SRS resource set can be determined, that is, the power parameter of the PTRS port corresponding to each panel can be determined, thereby ensuring the PUSCH transmission performance of the terminal in a multi-panel scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a network structure applicable to the embodiments of the present application;

[0020] Figure 2 It is a multi-panel transmission schematic;

[0021] Figure 3 is a flow chart of a method for determining power parameters provided in an embodiment of the present application;

[0022] Figure 4 is a structural diagram of a power parameter determination device provided in an embodiment of the present application;

[0023] Figure 5 is a structural diagram of a terminal provided in an embodiment of the present application;

[0024] Figure 6 It is a structural diagram of another terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0026] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0027] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0028] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 thGeneration, 6G) communication system.

[0029] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. In addition to the above-mentioned terminal devices, it can also be a chip in the terminal, such as a modem chip, a system-on-chip (SoC). It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device, wherein the access network device may also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B (home evolved NodeB), a Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0030] Before describing the embodiments of the present application, the following briefly introduces the related technologies:

[0031] 1. Multi-panel / TRP scenario description

[0032] The 3rd Generation Partnership Project (3GPP) Release 18 (R18) introduced multi-panel transmission technology to improve data transmission throughput. The network side device can configure two sounding reference signal (SRS) resource sets, and these two SRS resource sets correspond to two panels. The network side device can dynamically indicate whether PUSCH uses one panel or two panels for transmission through downlink control information (DCI). Figure 2 As shown, when two panels are used for transmission together, a part of the transmission layer of the PUSCH is mapped to one panel for transmission, and another part of the transmission layer is mapped to another panel for transmission.

[0033] 2. Phase Tracking Reference Signal (PTRS)

[0034] 1. Background of PTRS

[0035] In high frequency band communications such as millimeter wave, the hardware implementation of analog front end is a huge challenge. For example, high frequency band crystal oscillators may generate large phase noise, thereby destroying the orthogonality of orthogonal frequency division multiplex (OFDM) symbol subcarriers. Therefore, PTRS is introduced in the NR system to estimate phase noise. The receiver can suppress and eliminate phase noise based on the estimation results of PTRS. The following mainly introduces the PTRS design in the case of control plane (CP) waveform.

[0036] 2.PTRS Port

[0037] For the uplink, a maximum of 2 PTRS ports are supported, namely port 0 and port 1. For terminals with full-coherent antenna coherence capability, one PTRS port is used by default; for terminals with partial-coherent and non-coherent antenna coherence capabilities, the Radio Resource Control (RRC) can configure one or two PTRS ports. Among them, when RRC configures two PTRS ports, it does not mean that both PTRS ports will be actually used, but depends on the number of PUSCH data streams transmitted in the uplink or the codebook structure corresponding to the PUSCH. For example, in some cases, when the number of PUSCH data streams is 1, PTRS port 0 is used. When the number of PUSCH data streams is 2, both PTRS port 0 and port 1 are used.

[0038] 3. PTRS Resource Mapping

[0039] The resource mapping of PTRS is associated with a demodulation reference signal (DMRS), the subcarriers mapped in the frequency domain are associated with the corresponding DMRS ports, and the symbols mapped in the time domain are associated with the occupied symbols of the corresponding DMRS.

[0040] The frequency domain resource mapping of PTRS can be expressed by the following formula:

[0041]

[0042]

[0043] Wherein, k is the subcarrier index mapped by PTRS; i = 1, 2, 3, ...; n RNTIN is the RNTI associated with the DCI for scheduling data transmission; RB is the number of scheduled RBs; K PT-RS ∈{2,4}, is the frequency domain mapping interval (i.e., frequency density) of PTRS, which is related to the number of scheduled RBs, see Table 1; is the value of RE offset (offset), which is related to the DMRS port corresponding to the PTRS. If the high-level parameter resourceElementOffset is not configured, the column corresponding to 'offset00' in Table 2 and Table 3 is used.

[0044] Table 1

[0045] Reserved bandwidth <![CDATA[Frequency density (K PT-RS )]]> <![CDATA[N RB <N RB0 ]]> PTRS does not exist <![CDATA[N RB0 ≤N RB <N RB1 ]]> 2 <![CDATA[N RB1 ≤N RB ]]> 4

[0046] Table 2

[0047]

[0048]

[0049] Table 3

[0050]

[0051] The time domain resource mapping of PTRS is related to the occupied symbols of DMRS and the corresponding modulation and coding scheme (MCS) level of PUSCH, see Table 4.

[0052] Table 4

[0053]

[0054]

[0055] When the MCS level of the data channel is large, the corresponding modulation order and code rate are also large, and it is more susceptible to phase noise, so the density in the time domain will be denser; when the MCS level of the data channel is small, the corresponding modulation order and code rate are relatively small, and it is less affected by phase noise, so the density in the time domain will be relatively sparse. Therefore, in the design of PTRS, according to different MCS levels, the time domain symbol interval of PTRS can be flexibly configured to {1, 2, 4}. In addition, when the time domain mapping collides with DMRS, PTRS mapping is not performed on the symbol, and the calculation of the time domain interval is re-based on the DMRS symbol.

[0056] 4.PTRS-DMRS association indication

[0057] For the uplink, since there is no Channel State Information (CSI) report, how the network side device determines the strongest layer depends on the implementation of the network side device. However, the network side device needs to inform the terminal of the association between PTRS and DMRS through the "PTRS-DMRS association" field in the downlink control information (DCI) so that the terminal can determine the resources and corresponding DMRS ports when sending PTRS. For terminals with different antenna coherence capabilities, the PTRS-DMRS association indication method used is slightly different.

[0058] For terminals with full-coherent antenna coherence capability, since only one PTRS port needs to be configured, and for NR systems before version 18 (Rel-18), the uplink only supports up to 4 data streams (corresponding to 4 DMRS ports), only 2 bits are needed to indicate the association between PTRS and DMRS; for terminals with partial-coherent and non-coherent antenna coherence capability, if RRC only configures one PTRS port, only 2 bits are needed. The specific association relationship indications of PTRS and DMRS are shown in Table 5:

[0059] Table 5

[0060] Indicative value DMRS port 0 The first scheduled DMRS port 1 The second scheduled DMRS port 2 The third scheduled DMRS port 3 The fourth scheduled DMRS port

[0061] For terminals with partial-coherent and non-coherent antenna coherence capabilities, if RRC is configured with a maximum of two PTRS ports, the protocol stipulates that PUSCH ports 1000 and 1002 are associated with PTRS port 0, and PUSCH ports 1001 and 1003 are associated with PTRS port 1. Therefore, the DMRS ports corresponding to PTRS port 0 and port 1 need to be indicated separately, as shown in Table 6:

[0062] Table 6

[0063]

[0064]

[0065] Among them, the MSB 1 bit corresponds to PTRS port 0, and the LSB 1 bit corresponds to PTRS port 1.

[0066] In the related art, the power scaling factor of PTRS is determined by the number of PUSCH transmission layers, and it is assumed that one panel is transmitted. Considering that power cannot be borrowed between panels, the power scaling factor in the related art is not applicable to multi-panel transmission scenarios.

[0067] In view of this, an embodiment of the present application provides a solution for determining PTRS power parameters in a multi-panel transmission scenario to solve the problem that the PTRS power parameter determination solution in the related art cannot be applied to the multi-panel scenario, resulting in poor terminal PUSCH transmission performance.

[0068] The power parameter determination method and the power parameter determination device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and their application scenarios.

[0069] Figure 3 A flow chart of a method for determining power parameters provided by an embodiment of the present application is shown. Figure 3 As shown, the power parameter determination method includes the following steps:

[0070] Step 301: The terminal receives a first message from a network-side device, where the first message is used to schedule a first PUSCH transmission, and the first PUSCH transmission is associated with a first SRS resource set and a second SRS resource set at the same time;

[0071] Step 302: The terminal determines a power parameter of the PTRS port associated with the target SRS resource set according to the PTRS port related information and a transmission parameter corresponding to the PUSCH transmission layer associated with the target SRS resource set;

[0072] The target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

[0073] The first message may be, for example, DCI, that is, the DCI indicates the number of SRS resource sets associated with PUSCH transmission. For example, the DCI carries an SRS resource set indicator field, and when the SRS resource set indicator indicates '01', it indicates that PUSCH is associated with two SRS resource sets.

[0074] The PUSCH transmission layer associated with the target SRS resource set may be a partial transmission layer of the first PUSCH, or the entire transmission layer of the first PUSCH.

[0075] The PTRS port associated with the target SRS resource set can be understood as the PTRS port being associated with a certain DMRS port of the target SRS resource set.

[0076] When the target SRS resource set is the first SRS resource set, the terminal determines the power parameter of the PTRS port associated with the first SRS resource set according to the PTRS port related information and the transmission parameters of the first SRS resource set. Correspondingly, when the target SRS resource set is the second SRS resource set, the terminal determines the power parameter of the PTRS port associated with the second SRS resource set according to the PTRS port related information and the transmission parameters of the second SRS resource set.

[0077] The power parameter of the PTRS port can be, for example, the EPRE ratio

[0078] In an embodiment of the present application, a terminal receives a first message from a network-side device, the first message is used to schedule a first PUSCH transmission, and the first PUSCH transmission is simultaneously associated with a first SRS resource set and a second SRS resource set; the terminal determines the power parameter of the PTRS port associated with the target SRS resource set according to the PTRS port related information and the TPMI associated with the target SRS resource set; wherein the target SRS resource set is any one of the first SRS resource set and the second SRS resource set. In this way, the power parameter of the PTRS port associated with each SRS resource set can be determined, that is, the power parameter of the PTRS port corresponding to each panel can be determined, thereby ensuring the PUSCH transmission performance of the terminal in a multi-panel scenario.

[0079] In some embodiments, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set according to the PTRS port related information and the transmission parameter corresponding to the PUSCH transmission layer associated with the target SRS resource set, including:

[0080] When the uplink PTRS power parameter indication value configured by the network side device is the target value, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set according to the PTRS port related information and the transmission parameters corresponding to the PUSCH transmission layer associated with the target SRS resource set.

[0081] Optionally, the uplink PTRS power parameter is UL-PTRS-power, and the target value is '00'. Here, '00' can be understood as indicating that PTRS can borrow power. In this case, the terminal can determine the power parameter of the PTRS port associated with the target SRS resource set based on the PTRS port related information and the transmission parameters corresponding to the PUSCH transmission layer associated with the target SRS resource set.

[0082] When the indication value of UL-PTRS-power is '01', the power value of PTRS may be a fixed value, which is not specifically described in the embodiment of the present application.

[0083] In some embodiments, the PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers;

[0084] The terminal determines, according to the PTRS port related information and the transmission parameter corresponding to the PUSCH transmission layer associated with the target SRS resource set, a power parameter of the PTRS port associated with the target SRS resource set, including at least one of the following:

[0085] When the number of transmission layers of the target SRS resource set is 1, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3;

[0086] When the number of transmission layers of the target SRS resource set is 2, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3.

[0087] The power parameter of the PTRS port associated with the target SRS resource set can be understood as the power parameter of the PTRS port mapped to the transmission layer associated with the target SRS resource set. When the number of transmission layers of the target SRS resource set is different, the power parameter of the PTRS port associated with the target SRS resource set may be different, that is, the transmission parameter corresponding to the PUSCH transmission layer associated with the target SRS resource set may include the number of transmission layers of the PUSCH transmission layer associated with the target SRS resource set. PTRS port number Q p The power parameters of the PTRS ports may also be different. That is, the terminal can p and the number of transmission layers of the target SRS resource set to determine the power parameters of the PTRS port.

[0088] In some embodiments, the PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers and the transmission type;

[0089] The terminal determines, according to the PTRS port related information and the transmission parameter of the PUSCH transmission layer associated with the target SRS resource set, a power parameter of the PTRS port associated with the target SRS resource set, including at least one of the following:

[0090] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is full coherent codebook transmission, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p ;

[0091] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is partially coherent or incoherent codebook transmission, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3;

[0092] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is non-codebook transmission, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3.

[0093] It should be noted that, when the transmission type of the target SRS resource set is codebook transmission, the number of transmission layers of the target SRS resource set can be indicated by the transmit precoding matrix indicator (TPMI) associated with the target SRS resource set. When the transmission type of the target SRS resource set is non-codebook transmission, the number of transmission layers of the target SRS resource set can be indicated by the SRS resource indicator (SRI) associated with the target SRS resource set.

[0094] When the number of transmission layers of the target SRS resource set is the same, for different transmission types, the power parameters of the PTRS ports associated with the target SRS resource set may be different or the same.

[0095] Various possible calculation methods of the power parameters of the PTRS port are described below.

[0096] Mode 1: When the number of transmission layers of the target SRS resource set is 1, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to 3×Q p -3.

[0097] In this method, when the number of transmission layers of the target SRS resource set is 1 and the number of PTRS ports is Q p When it is 1, the power parameter of the PTRS port associated with the target SRS resource set is 0; when the number of transmission layers of the target SRS resource set is 1 and the number of PTRS ports is Q p When it is 2, the power parameter of the PTRS port associated with the target SRS resource set is 3.

[0098] Mode 2: When the number of transmission layers of the target SRS resource set is 2, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3.

[0099] In this method, when the number of transmission layers of the target SRS resource set is 2 and the number of PTRS ports is Q p When it is 1, the power parameter of the PTRS port associated with the target SRS resource set is 0; when the number of transmission layers of the target SRS resource set is 2 and the number of PTRS ports is Q p When it is 2, the power parameter of the PTRS port associated with the target SRS resource set is 3.

[0100] Mode 3: When the number of transmission layers of the target SRS resource set is 2, if the transmission type of the target SRS resource set is full coherent codebook transmission, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to 3×Q p .

[0101] Mode 4: When the number of transmission layers of the target SRS resource set is 2, the transmission type of the target SRS resource set is partially coherent or incoherent codebook transmission, and the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to 3×Q p -3.

[0102] Mode 5: When the number of transmission layers of the target SRS resource set is 2, the transmission type of the target SRS resource set is non-codebook transmission, and the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to 3×Q p -3.

[0103] Method 2, method 3, method 4, and method 5 are all applicable to the case where the number of transmission layers of the SRS resource set is 2. The difference between the two is that the power parameter of the PTRS port in method 2 is only related to the number of PTRS ports Q. p Relatedly, in method 3, the determination of the power parameters of the PTRS port further considers the transmission type of the SRS resource set. It should be noted that when the number of transmission layers of the SRS resource set is 2, whether to use method 2 to determine the power parameters of the PTRS port, or to use methods 3 to 5 to determine the power parameters of the PTRS port, depends on the RRC configuration.

[0104] Optionally, the Q p The number of PTRS ports scheduled for the first message; or,

[0105] The Q pis the total number of PTRS ports used for the first PUSCH transmission; or,

[0106] The Q p is the number of PTRS ports associated with the target SRS resource set; or,

[0107] The Q p The maximum number of PTRS ports configured by the radio resource control (RRC) for space division multiplexing (SDM) transmission.

[0108] The following provides a specific embodiment to illustrate the solution for determining the power parameters of the PTRS port.

[0109] Example 1 (as shown in Tables 7 to 11)

[0110] Table 7

[0111]

[0112] Table 7 can be understood as a combination of the above-mentioned methods 1, 3 to 5.

[0113] Exemplarily, the usage conditions of Table 7 are as follows: when the high-level parameter multipanelScheme is set to "SDMScheme", and two SRS resource sets are configured in srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2, and the high-level parameters in the parameter SRS-ResourceSet are used to set "Codebook" or "nonCodebook", and the SRS resource set indication (SRS ResourceSet indicator) indicates "10".

[0114] Table 8 shows the possible power parameters of each PTRS port in the case of Full-coherent, single PTRS port.

[0115] Table 8

[0116]

[0117] Among them, SRS resource set 1 represents the first SRS resource set, SRS resource set 2 represents the second SRS resource set, L1 represents the number of transmission layers is 1, L2 represents the number of transmission layers is 2, and the remaining tables are understood in the same way.

[0118] Table 9 shows the possible power parameters of each PTRS port in the case of full-coherent and two PTRS ports.

[0119] Table 9

[0120]

[0121]

[0122] Table 10 shows the possible power parameters for each PTRS port in the case of partial / non-coherent, single PTRS port.

[0123] Table 10

[0124] SRS resource set 1 SRS resource set 2 Power parameters of PTRS port0 L1 L1 0 L2 L1 0 L1 L2 0 L2 L2 0

[0125] Table 11 shows the possible power parameters of each PTRS port in the case of Partial / non-coherent and two PTRS ports.

[0126] Table 11

[0127]

[0128] Example 2 (as shown in Table 12 to Table 13)

[0129] Table 12

[0130]

[0131] Table 12 can be understood as a combination of the above-mentioned methods 1 and 2.

[0132] Table 13 shows the possible power parameters of each PTRS port in the case of full-coherent and two PTRS ports.

[0133] Table 13

[0134]

[0135] For other details, please refer to Table 9, Table 10 and Table 11 in Example 1.

[0136] In summary, in the embodiments of the present application, in a multi-panel transmission scenario, the terminal can determine the power parameters that the PTRS can obtain based on each panel, thereby ensuring the PUSCH transmission performance of the terminal in the multi-panel scenario.

[0137] The power parameter determination method provided in the embodiment of the present application may be executed by a power parameter determination device. In the embodiment of the present application, the power parameter determination device performing the power parameter determination method is taken as an example to illustrate the power parameter determination device provided in the embodiment of the present application.

[0138] Reference Figure 4The embodiment of the present application also provides a power parameter determination device, which can be applied to a terminal. Figure 4 As shown, the power parameter determination device 400 includes:

[0139] A receiving module 401 is configured to receive a first message from a network side device, where the first message is used to schedule a first physical uplink shared channel PUSCH transmission, where the first PUSCH transmission is simultaneously associated with a first sounding reference signal SRS resource set and a second SRS resource set;

[0140] The determination module 402 is used to determine the power parameter of the PTRS port associated with the target SRS resource set according to the phase tracking reference signal PTRS port related information and the transmission parameter of the PUSCH transmission layer associated with the target SRS resource set;

[0141] The target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

[0142] Optionally, the determination module 402 is specifically configured to:

[0143] When the uplink PTRS power parameter indication value configured by the network side device is a target value, the power parameter of the PTRS port associated with the target SRS resource set is determined according to the PTRS port related information and the transmission parameters of the PUSCH transmission layer associated with the target SRS resource set.

[0144] Optionally, the uplink PTRS power parameter is UL-PTRS-power, and the target value is '00'.

[0145] The PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers;

[0146] The determination module 402 is specifically configured to perform at least one of the following:

[0147] When the number of transmission layers of the target SRS resource set is 1, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3;

[0148] When the number of transmission layers of the target SRS resource set is 2, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3.

[0149] Optionally, the PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers and the transmission type;

[0150] The determination module 402 is specifically configured to perform at least one of the following:

[0151] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is full coherent codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p ;

[0152] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is partially coherent or incoherent codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3;

[0153] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is non-codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3.

[0154] Optionally, the Q p The number of PTRS ports scheduled for the first message; or,

[0155] The Q p is the total number of PTRS ports used for the first PUSCH transmission; or,

[0156] The Q p is the number of PTRS ports associated with the target SRS resource set; or,

[0157] The Q p The maximum number of PTRS ports configured by the radio resource control (RRC) for space division multiplexing (SDM) transmission.

[0158] In summary, in the embodiments of the present application, in a multi-panel transmission scenario, the terminal can determine the power parameters that the PTRS can obtain based on each panel, thereby ensuring the PUSCH transmission performance of the terminal in the multi-panel scenario.

[0159] The power parameter determination device 400 in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or it can be other devices other than a terminal. Exemplarily, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of the present application.

[0160] The power parameter determination device 400 provided in the embodiment of the present application can achieve Figure 3 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0161] Alternatively, if Figure 5 As shown, the embodiment of the present application further provides a terminal 600, including a processor 601 and a memory 602, wherein the memory 602 stores a program or instruction that can be run on the processor 601, and when the program or instruction is executed by the processor 601, an operation is performed. Figure 3 The various steps of the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described again here.

[0162] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 3 The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 6 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0163] The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of a processor 710.

[0164] Those skilled in the art will appreciate that the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 6 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0165] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0166] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 701 can transmit the data to the processor 710 for processing; in addition, the RF unit 701 can send uplink data to the network side device. Generally, the RF unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0167] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 709 may include a volatile memory or a non-volatile memory, or the memory 709 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0168] The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.

[0169] The radio frequency unit 701 is used for:

[0170] receiving a first message from a network side device, where the first message is used to schedule a first physical uplink shared channel PUSCH transmission, where the first PUSCH transmission is simultaneously associated with a first sounding reference signal SRS resource set and a second SRS resource set;

[0171] The processor 710 is used to:

[0172] Determine a power parameter of the PTRS port associated with the target SRS resource set according to the phase tracking reference signal PTRS port related information and the transmission parameter of the PUSCH transmission layer associated with the target SRS resource set;

[0173] The target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

[0174] Optionally, the processor 710 is further configured to:

[0175] When the uplink PTRS power parameter indication value configured by the network side device is a target value, the power parameter of the PTRS port associated with the target SRS resource set is determined according to the PTRS port related information and the transmission parameters of the PUSCH transmission layer associated with the target SRS resource set.

[0176] Optionally, the uplink PTRS power parameter is UL-PTRS-power, and the target value is '00'.

[0177] Optionally, the PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers;

[0178] The processor 710 is further configured to:

[0179] When the number of transmission layers of the target SRS resource set is 1, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3;

[0180] When the number of transmission layers of the target SRS resource set is 2, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3.

[0181] Optionally, the PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers and the transmission type;

[0182] The processor 710 is further configured to:

[0183] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is full coherent codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p ;

[0184] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is partially coherent or incoherent codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3;

[0185] When the number of transmission layers of the target SRS resource set is 2 and the transmission type is non-codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3.

[0186] Optionally, the Q p The number of PTRS ports scheduled for the first message; or,

[0187] The Q p is the total number of PTRS ports used for the first PUSCH transmission; or,

[0188] The Q p is the number of PTRS ports associated with the target SRS resource set; or,

[0189] The Q p The maximum number of PTRS ports configured by the radio resource control (RRC) for space division multiplexing (SDM) transmission.

[0190] In summary, in the embodiments of the present application, in a multi-panel transmission scenario, the terminal can determine the power parameters that the PTRS can obtain based on each panel, thereby ensuring the PUSCH transmission performance of the terminal in the multi-panel scenario.

[0191] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to Figure 3 The relevant description of the method embodiment is the same as that of the method embodiment, and the same or corresponding technical effects are achieved. To avoid repetition, they will not be repeated here.

[0192] The embodiment of the present application also provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, the above Figure 3 The various processes of the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described here.

[0193] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0194] The present application also provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the above Figure 3 The various processes of the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described here.

[0195] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0196] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium, and is executed by at least one processor to implement the various processes of the above-mentioned terminal power parameter determination method embodiment. To avoid repetition, they are not repeated here.

[0197] An embodiment of the present application also provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the power parameter determination method on the terminal side.

[0198] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0199] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0200] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A method for determining a power parameter, characterized in that: include: The terminal receives a first message from a network side device, where the first message is used to schedule a first physical uplink shared channel PUSCH transmission, where the first PUSCH transmission is simultaneously associated with a first sounding reference signal SRS resource set and a second SRS resource set; The terminal determines the power parameter of the PTRS port associated with the target SRS resource set according to the phase tracking reference signal PTRS port related information and the transmission parameter corresponding to the PUSCH transmission layer associated with the target SRS resource set; The target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

2. The method according to claim 1, characterized in that The terminal determines, according to the PTRS port related information and the transmission parameter corresponding to the PUSCH transmission layer associated with the target SRS resource set, the power parameter of the PTRS port associated with the target SRS resource set, including: When the uplink PTRS power parameter indication value configured by the network side device is the target value, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set according to the PTRS port related information and the transmission parameters of the PUSCH transmission layer associated with the target SRS resource set.

3. The method according to claim 2, characterized in that The uplink PTRS power parameter is UL-PTRS-power, and the target value is '00'.

4. The method according to any one of claims 1 to 3, characterized in that The PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers; The terminal determines, according to the PTRS port related information and the transmission parameter of the PUSCH transmission layer associated with the target SRS resource set, a power parameter of the PTRS port associated with the target SRS resource set, including at least one of the following: When the number of transmission layers of the target SRS resource set is 1, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3; When the number of transmission layers of the target SRS resource set is 2, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3.

5. The method according to any one of claims 1 to 3, characterized in that The PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers and the transmission type; The terminal determines, according to the PTRS port related information and the transmission parameter corresponding to the PUSCH transmission layer associated with the target SRS resource set, a power parameter of the PTRS port associated with the target SRS resource set, including at least one of the following: When the number of transmission layers of the target SRS resource set is 2 and the transmission type is full coherent codebook transmission, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p ; When the number of transmission layers of the target SRS resource set is 2 and the transmission type is partially coherent or incoherent codebook transmission, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3; When the number of transmission layers of the target SRS resource set is 2 and the transmission type is non-codebook transmission, the terminal determines the power parameter of the PTRS port associated with the target SRS resource set to be 3×Q p -3.

6. The method according to claim 4 or 5, characterized in that: The Q p The number of PTRS ports scheduled for the first message; or, The Q p is the total number of PTRS ports used for the first PUSCH transmission; or, The Q p is the number of PTRS ports associated with the target SRS resource set; or, The Q p The maximum number of PTRS ports configured by the radio resource control (RRC) for space division multiplexing (SDM) transmission.

7. A power parameter determination device, applied to a terminal, characterized in that: The device comprises: A receiving module, configured to receive a first message from a network side device, wherein the first message is used to schedule a first physical uplink shared channel PUSCH transmission, and the first PUSCH transmission is simultaneously associated with a first sounding reference signal SRS resource set and a second SRS resource set; A determination module, configured to determine a power parameter of a PTRS port associated with a target SRS resource set according to information related to a phase tracking reference signal PTRS port and a transmission parameter of a PUSCH transmission layer associated with a target SRS resource set; The target SRS resource set is any one of the first SRS resource set and the second SRS resource set.

8. The device according to claim 7, characterized in that The determination module is specifically used for: When the uplink PTRS power parameter indication value configured by the network side device is the target value, the power parameter of the PTRS port associated with the target SRS resource set is determined according to the PTRS port related information and the transmission parameters corresponding to the PUSCH transmission layer associated with the target SRS resource set.

9. The device according to claim 8, characterized in that The uplink PTRS power parameter is UL-PTRS-power, and the target value is '00'.

10. The device according to any one of claims 7 to 9, characterized in that The PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers; The determination module is specifically used for at least one of the following: When the number of transmission layers of the target SRS resource set is 1, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3; When the number of transmission layers of the target SRS resource set is 2, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3.

11. The device according to any one of claims 7 to 9, characterized in that The PTRS port related information includes the PTRS port number Q p , the transmission parameters include the number of transmission layers and the transmission type; The determination module is specifically used for at least one of the following: When the number of transmission layers of the target SRS resource set is 2 and the transmission type is full coherent codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p ; When the number of transmission layers of the target SRS resource set is 2 and the transmission type is partially coherent or incoherent codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3; When the number of transmission layers of the target SRS resource set is 2 and the transmission type is non-codebook transmission, the power parameter of the PTRS port associated with the target SRS resource set is determined to be 3×Q p -3.

12. The device according to claim 10 or 11, characterized in that The Q p The number of PTRS ports scheduled for the first message; or, The Q p is the total number of PTRS ports used for the first PUSCH transmission; or, The Q p is the number of PTRS ports associated with the target SRS resource set; or, The Q p The maximum number of PTRS ports configured by the radio resource control (RRC) for space division multiplexing (SDM) transmission.

13. A terminal, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the power parameter determination method according to any one of claims 1 to 6 are implemented.

14. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the power parameter determination method according to any one of claims 1 to 6 are implemented.

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