A method, apparatus, system and medium for determining power

Abstract

This application discloses a power determination method, device, system, and medium; wherein the method is applied to a terminal device, and the method includes: acquiring configuration information sent by a network-side device; wherein the configuration information includes information about a downlink carrier containing a downlink reference signal associated with an uplink signal or an uplink physical channel; determining path loss based on the downlink reference signal carried by the downlink carrier; and determining the transmission power of the uplink signal or uplink physical channel based on the path loss.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a power determination method, device, system and medium. Background Technology

[0002] In research on enhanced versions of 5G mobile communication systems, an architecture of flexible cells composed of multiple carriers was proposed. To save carrier overhead, when carrier frequency spacing is close, some carriers may not transmit synchronization signals, instead relying on downlink synchronization signals carried by adjacent carriers to achieve downlink synchronization and power measurement. However, in flexible cells, there may be situations where the carrier containing the downlink synchronization signal is far from the uplink randomly accessed carrier frequency band of the terminal device. In this case, the terminal device will be unable to perform power measurement, thus making it impossible to accurately determine path loss and transmission power. Summary of the Invention

[0003] To address the above issues, this application provides a power determination method, device, system, and medium. In the power determination method provided by this application, the terminal device can obtain configuration information from the network-side device, including the downlink reference signal associated with the uplink signal or uplink physical channel, on the downlink carrier. Based on the downlink reference signal carried by the downlink carrier in the configuration information, the path loss is determined, and the transmission power of the terminal device is determined based on the path loss. This solves the problem in related technologies where the terminal device cannot accurately determine the path loss and transmission power when accessing a flexible cell.

[0004] The technical solution provided in this application is as follows:

[0005] This application provides a power determination method, which is applied to a terminal device, and the method includes:

[0006] Obtain configuration information sent by the network-side device; wherein, the configuration information includes information about the downlink carrier in which the downlink reference signal associated with the uplink signal or uplink physical channel is located;

[0007] The path loss is determined based on the downlink reference signal carried by the downlink carrier;

[0008] Based on the path loss, the transmission power of the uplink signal or uplink physical channel is determined.

[0009] In one implementation, determining the path loss based on the downlink reference signal carried by the downlink carrier includes:

[0010] Obtain the measurement result obtained by the terminal device from the measurement of the downlink reference signal;

[0011] Obtain the reference signal power of the downlink reference signal;

[0012] The path loss is determined based on the difference between the reference signal power and the measurement result.

[0013] In one implementation, the configuration information further includes information about the downlink carrier corresponding to the power control parameters or target received power associated with the uplink signal or the uplink physical channel; the method further includes:

[0014] The transmission power is determined based on the power control parameters or the target received power.

[0015] In one implementation, when the uplink physical channel is a Physical Random Access Channel (PRACH), the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH; the method further includes:

[0016] The target downlink carrier is determined based on the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH in the configuration information;

[0017] Obtain the maximum transmit power configured for the terminal device;

[0018] The transmission power of the terminal device on the PRACH is determined based on the target receive power carried by the target downlink carrier and the maximum transmit power.

[0019] In one implementation, when the uplink physical channel is a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH), and the uplink signal is a Sounding Reference Signal (SRS), the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with the PUSCH, the PUCCH, or the SRS; the method further includes:

[0020] The target downlink carrier is determined based on the carrier index of the downlink carrier corresponding to the power control parameters;

[0021] Obtain the maximum transmit power configured for the terminal device;

[0022] The transmission power is determined based on the power control parameters in the target downlink carrier and the maximum transmit power.

[0023] In one implementation, the configuration information includes information about multiple downlink carriers containing a downlink reference signal associated with the uplink signal or the uplink physical channel; the step of determining path loss based on the downlink reference signal carried by the downlink carrier includes:

[0024] Based on the frequency relationship between the carrier where the uplink signal or uplink physical channel is located and the plurality of downlink carriers in the configuration information, one of the plurality of downlink carriers is determined as a target downlink carrier, and the path loss is determined based on the downlink reference signal in the target downlink carrier.

[0025] or,

[0026] Based on the method selected by the terminal device, one of the plurality of downlink carriers is determined as the target downlink carrier, and the path loss is determined based on the downlink reference signal in the target downlink carrier.

[0027] In one implementation, the configuration information further includes reference signal configuration information for configuring the downlink reference signal; before determining the path loss based on the downlink reference signal carried by the downlink carrier, the method further includes:

[0028] Obtain reference signal configuration information from the configuration information; wherein, the reference signal configuration information includes at least the time-domain and frequency-domain resource configuration information of the downlink reference signal;

[0029] Based on the reference signal configuration information, the downlink reference signal is obtained from the data carried by the downlink carrier in the configuration information.

[0030] In one implementation, before determining the path loss based on the downlink reference signal carried by the downlink carrier, the method further includes:

[0031] If the downlink carrier corresponding to the uplink carrier where the uplink signal or uplink physical channel of the terminal device is located does not carry a downlink reference signal for determining path loss, the target downlink carrier is determined based on the configuration information.

[0032] The downlink reference signal is obtained from the data carried by the target downlink carrier.

[0033] This application also provides another power determination method, which is applied to a network-side device, and the method includes:

[0034] Determine configuration information; wherein, the configuration information includes information about the downlink carrier in which the downlink reference signal associated with the uplink signal or uplink physical channel is located;

[0035] The configuration information is broadcast; wherein the configuration information is used to enable the terminal device to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or the uplink physical channel based on the path loss.

[0036] In one implementation, when the uplink physical channel is PUSCH or PUCCH and the uplink signal is SRS, the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with the uplink PUSCH, the PUCCH, or the SRS.

[0037] In one implementation, when the uplink physical channel is PRACH, the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH.

[0038] In one implementation, the configuration information includes information about a plurality of downlink carriers in which a downlink reference signal associated with the uplink signal or uplink physical channel resides.

[0039] In one implementation, before broadcasting the configuration information, the method further includes:

[0040] Determine reference signal configuration information and add the reference signal configuration information to the configuration information; wherein the reference signal configuration information includes at least the time domain or frequency domain resource configuration information of the downlink reference signal.

[0041] This application embodiment also provides a terminal device, the terminal device including a first transceiver module and a first determination module; wherein:

[0042] The first transceiver module is used to acquire configuration information sent by the network-side device; wherein, the configuration information includes information about the downlink carrier of the downlink reference signal associated with the uplink signal or uplink physical channel;

[0043] The first determining module is used by the terminal device to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or the uplink physical channel based on the path loss.

[0044] This application embodiment also provides a terminal device, the terminal device including a first processor and a first memory, wherein the first memory stores a computer program, and when the computer program is executed by the first processor, it can implement the power determination method applied to the terminal device as described above.

[0045] This application embodiment also provides a network-side device, the network-side device including a second determining module and a second transceiver module, wherein:

[0046] The second determining module is used to determine configuration information; wherein, the configuration information includes information about the downlink carrier in which the downlink reference signal associated with the uplink signal or uplink physical channel is located;

[0047] The second transceiver module is used to broadcast the configuration information; wherein the configuration information is used for the terminal device to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or the uplink physical channel based on the path loss.

[0048] This application embodiment also provides a network-side device, which includes a second processor and a second memory, wherein the second memory stores a computer program, and when the computer program is executed by the second processor, it can implement the power determination method applied to the network-side device as described above.

[0049] This application also provides a power determination system, which includes a terminal device as described in any of the preceding embodiments and a network-side device as described in any of the preceding embodiments.

[0050] This application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor of an electronic device, it can implement the power determination method as described above for terminal devices or network-side devices.

[0051] As can be seen from the above, in the power determination method for terminal devices provided in this application embodiment, after obtaining the configuration information sent by the network side, the terminal device can determine the path loss based on the downlink reference signal carried by the downlink carrier in the configuration information, and determine the transmission power of the uplink signal or uplink physical channel of the terminal device based on the path loss. This enables the terminal device to flexibly obtain the downlink reference signal based on the configuration information and determine the path loss and transmission power, thereby overcoming the technical problem in related technologies where the uplink carrier selected by the terminal device in the flexible cell is far from the carrier frequency band of the downlink synchronization signal, making it impossible to accurately determine the transmission power. Attached Figure Description

[0052] Figure 1 A flowchart illustrating the power determination method for terminal devices provided in this application embodiment;

[0053] Figure 2A schematic diagram illustrating the process of determining path loss based on downlink reference signal carried by downlink carrier, provided for an embodiment of this application;

[0054] Figure 3 A flowchart illustrating the process of determining the transmission power of a terminal device on PRACH, provided for an embodiment of this application;

[0055] Figure 4 A schematic diagram illustrating the process of determining transmission power based on power control parameters and maximum transmit power, provided for an embodiment of this application;

[0056] Figure 5 This is a schematic diagram of the first process for obtaining a downlink reference signal provided in an embodiment of this application;

[0057] Figure 6 This is a schematic diagram of the second process for obtaining downlink reference signals provided in an embodiment of this application;

[0058] Figure 7 A flowchart illustrating a power determination method for network-side devices provided in an embodiment of this application;

[0059] Figure 8 This is a first structural schematic diagram of a terminal device provided in an embodiment of this application;

[0060] Figure 9 This is a second structural schematic diagram of the terminal device provided in an embodiment of this application;

[0061] Figure 10 A first structural schematic diagram of the network-side device provided in the embodiments of this application.

[0062] Figure 11 A second structural schematic diagram of the network-side device provided in the embodiments of this application.

[0063] Figure 12 This is a schematic diagram of the power determination system provided in an embodiment of this application. Detailed Implementation

[0064] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0065] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0066] This application relates to the field of wireless communication technology, and in particular to a power determination method, device, system and medium.

[0067] In the research on the enhanced version of 5G, an architecture consisting of multiple carriers to form a single cell is proposed. Terminal devices camp on an anchor carrier in the idle state. Network-side devices broadcast system messages and paging messages through the anchor carrier. Furthermore, the anchor carrier can also broadcast at least one non-anchor carrier, which includes a frequency division duplex (FDD) carrier, a time division duplex (TDD) carrier, a supplementary uplink (SUL) carrier, or a supplementary downlink (SDL) carrier.

[0068] Meanwhile, in order to save carrier overhead, when the frequency intervals of the carriers are close, some downlink carriers may not send synchronization signals. In this case, the terminal device can achieve synchronization by using the synchronization signals carried by other carriers with frequencies close to its uplink carrier.

[0069] In practical applications, when a terminal device initiates a random access request, it can select an anchor carrier or a non-anchor carrier for access based on a threshold value of the Reference Signal Receiving Power (RSRP) or based on the service type, thereby achieving flexible load balancing. However, when a terminal device selects a specific anchor carrier or non-anchor carrier for access, there may be a problem that the frequency band of the carrier containing the downlink synchronization signal is far apart from the uplink carrier that the terminal device randomly accesses.

[0070] In the uplink power control mechanism of related technologies, the transmission power control of terminal equipment on PRACH and PUSCH is determined with reference to the downlink reference signal (DL RS) of the same serving cell.

[0071] Taking PRACH as an example, the terminal device determines the transmission power P of PRACH located on serving cell c, carrier f, and active uplink bandwidth (ULBWP) b at transmission time i based on the DL RS of serving cell c. PRACH,b,f,c (i) can be calculated using equation (1):

[0072] P PRACH,b,f,c (i)=min{P CMAX,f,c (i),P PRACH,target,f,c (i)+PL b,f,c} (1)

[0073] Among them, PCMAX,f,c (i) is the maximum output power configured by the network-side equipment for the terminal equipment at transmission time i, serving cell c, and carrier f.

[0074] P PRACH,target,f,c (i) is the target receive power of PRACH provided by the higher-layer signaling PREMBLE_RECEIVED_TARGET_POWER for serving cell c, carrier f, and UL BWP b; PL b,f,c It is the path loss for carrier f and UL BWP b obtained from the DL RS associated with the active downlink bandwidth part (DL BWP) of serving cell c and PRACH transmission. It is calculated as: referenceSignalPower – RSRP after higher layer filtering, where the units of referenceSignalPower and RSRP after higher layer filtering are both dBm, and the unit of path loss is dB.

[0075] If the terminal device's current active DL BWP is the Initial DL BWP, and the current multiplexing method for the Synchronization Signal and Physical Broadcast Channel (PBCH) block (SSB) and Control-Resource Set (CORESET) is pattern 2 or 3, then the terminal device determines the PL based on the SSB associated with the PRACH transmission. b,f,c .

[0076] Under the aforementioned flexible cell architecture, terminal devices can choose to access the network via either an anchor carrier or a non-anchor carrier. Therefore, the uplink carrier accessed by the terminal device may be different from the carrier used to acquire the SSB. In this case, the uplink path loss determined based on the aforementioned power control process may have a large error.

[0077] In related technologies, the Supplementary Uplink (SUL) introduces a supplementary carrier at a lower frequency, which can improve uplink coverage performance when terminal devices use SUL uplink access for data transmission.

[0078] In the design of 5G New Radio (NR) SUL, since the SUL carrier is associated with a pair of NR DL / UL carriers, the NR SLU provides a method for estimating the path loss difference between the SUL carrier and the paired DL carrier, based on the path loss difference between the SUL carrier and the paired DL carrier. This is shown in Table 1.

[0079] Table 1 presents statistical data on path loss, penetration loss, coupling loss without antenna gain, antenna gain, and total coupling loss for three frequency bands: 4GHz-700MHz, 30GHz-700MHz, and 70GHz-700MHz. Specifically, in the 4GHz-700MHz band, the path loss, penetration loss, coupling loss without antenna gain, antenna gain, and total coupling loss are 16.3dB, 10.2dB, 26.5dB, 3dB, and 23.5dB, respectively; while in the 30GHz-700MHz band, the path loss, penetration loss, coupling loss without antenna gain, antenna gain, and total coupling loss are 35.3dB, 20.8dB, 56.1dB, 20dB, and 36.1dB, respectively; and in the 70GHz-700MHz band… The path loss, penetration loss, coupling loss difference without antenna gain, antenna gain, and total coupling loss difference in the MHz band are 43.2 dB, 32.8 dB, 76 dB, 26 dB, and 50 dB, respectively.

[0080] Table 1

[0081]

[0082] Table 1 shows that the path loss varies significantly across different frequency bands, with the 70GHz-700MHz band exhibiting the highest path loss at 43.2dB. Considering penetration loss, the maximum uplink and downlink path loss can reach 76dB. In other words, when a conventional NR DL carrier uses a high-frequency carrier and a SUL carrier uses a low-frequency carrier, the uplink path loss will be up to 76dB lower than the downlink path loss. Therefore, when considering uplink power control, the target received uplink power value estimated based on DL RS will be reduced by AdB, where AdB is a value equivalent to the difference between the uplink and downlink path losses.

[0083] In communication standards, by setting the minimum values ​​of the power control parameters of the carrier-level PUSCH and PUCCH with SRS, the path loss difference can be further reduced from -126dB to -202dB based on Long Term Evolution (LTE). For example, setting p0-nominal in PUCCH-ConfigCommon to INTEGER (-202..24) and p0-NominalWithGrant in PUSCH-ConfigCommon to INTEGER (-202..24) can be achieved. Additionally, preambleReivedTargetPower in PACH-ConfigGeneric can be set to (-202..60), thereby adjusting the path loss difference.

[0084] However, for SUL (Suspended UL), the network-side equipment binds the SUL to the DL (Deep Downlink) in the same cell. Therefore, path loss can be adjusted by setting the minimum value of the DL's power control parameters or setting a smaller target receive power for PRACH. In other words, in related technologies, when setting the DL's power control parameters or the PRACH's target receive power, only the difference between the SUL and its corresponding DL in the same cell needs to be considered. But for flexible cells, the following characteristics may exist: in addition to the SUL carrier, the same anchor carrier may also include TDD or FDD carriers, and these carriers themselves have their own downlink carriers; furthermore, there may be multiple SUL carriers, and the DL carriers corresponding to these SUL carrier combinations are not necessarily the anchor carriers.

[0085] After the terminal device selects an uplink carrier in a flexible cell, it needs to determine from which carrier's downlink synchronization signal the downlink reference signal related to power control is obtained in order to accurately calculate path loss and uplink transmission power. However, no solution is provided in the relevant technologies.

[0086] Based on the above problems, this application provides a power determination method, device, system, and medium. In the power determination method provided by this application, after the terminal device obtains the configuration information of the downlink carrier, which includes the downlink reference signal associated with the uplink signal or uplink physical channel, sent by the network-side device, it can determine the path loss based on the downlink reference signal carried by the downlink carrier, and thus determine the transmission power of the uplink signal or uplink physical channel of the terminal device based on the path loss. This solves the problem in related technologies that the terminal device cannot flexibly and accurately determine the path loss and transmission power after accessing a flexible cell.

[0087] This application first provides a power determination method, which is applied to a terminal device.

[0088] In one embodiment, the terminal device can be a smart mobile terminal device, such as a smartphone, drone, or robot, but this application does not limit this.

[0089] It should be noted that the power determination method applied to the terminal device can be implemented by the processor of the terminal device. The processor can be at least one of the following: Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), Central Processing Unit (CPU), controller, microcontroller, and microprocessor.

[0090] Figure 1 This is a flowchart illustrating the power determination method for terminal devices provided in an embodiment of this application, as shown below. Figure 1 As shown, the method may include steps 101 to 103:

[0091] Step 101: Obtain the configuration information sent by the network-side device.

[0092] The configuration information includes information about the downlink carrier in which the downlink reference signal associated with the uplink signal or uplink physical channel is located.

[0093] In one implementation, the network-side equipment may be a base station device.

[0094] In one implementation, the configuration information may be determined by the network-side device configuring the uplink and downlink carriers within its supported frequency band; or it may be received by the network-side device from other devices. For example, the other devices may be core network devices, but this application embodiment does not limit this.

[0095] In one implementation, the uplink signal can be an uplink physical signal. For example, the uplink physical signal may include any one of the following: demodulation reference signals (DM-RS), phase-tracking reference signals (PT-RS), and SRS. This application embodiment does not limit this.

[0096] In one implementation, the uplink physical channel may include any one of PUSCH, PUCCH, and PRACH, but this application does not limit this.

[0097] In one embodiment, the downlink reference signal may include at least one of the following: Channel-state information reference signal (CSI-RS), DL RS, and SSB; however, this application does not limit the specific implementation of the reference signal.

[0098] In one implementation, after the network-side device determines the configuration information, it can broadcast the configuration information via the anchor carrier so that the terminal device can obtain the configuration information from the data carried by the anchor carrier. For example, at least one piece of information such as the location of the configuration information in the data carried by the anchor carrier, the size of the configuration information, and the period of the configuration information can be preset.

[0099] For example, in a flexible cell, assuming that the 2.6 GHz TDD carrier is the anchor carrier, and the 1.8 GHz FDD carrier, 2.0 GHz FDD carrier, 2.3 GHz SUL carrier, and 4.9 GHz TDD carrier can be non-anchor carriers, then the network-side device can broadcast the downlink reference signal associated with the 2.3 GHz SUL located on the 1.8 GHz FDD carrier through the 2.6 GHz TDD carrier.

[0100] Step 102: Determine the path loss based on the downlink reference signal carried by the downlink carrier.

[0101] In one implementation, the terminal device may first determine the target downlink carrier from the downlink carrier in the configuration information based on its uplink signal or the uplink physical channel it selects to access, and the matching relationship between the uplink signal or uplink physical channel in the configuration information, and then obtain the downlink reference signal from the data carried by the target downlink carrier.

[0102] In one implementation, when the uplink signal or uplink physical channel of the terminal device changes, the determination operation of determining the target downlink carrier and the path loss based on the downlink reference signal carried by the target downlink carrier can be performed again to determine the path loss more accurately in real time.

[0103] Step 103: Determine the transmission power of the uplink signal or uplink physical channel based on path loss.

[0104] In one implementation, the transmission power of the uplink signal or the uplink physical channel can be the signal transmission power of the terminal device sending the uplink signal or transmitting the signal through the uplink physical channel.

[0105] In one implementation, the transmission power of the uplink signal or uplink physical channel can be determined by adjusting the transmit power of the terminal device based on path loss.

[0106] As can be seen from the above, in the power determination method for terminal devices provided in this application embodiment, after obtaining the configuration information sent by the network side, the terminal device can determine the path loss based on the downlink reference signal carried by the downlink carrier, and then determine the transmission power of the uplink signal or uplink physical channel of the terminal device based on the path loss. This enables the terminal device to flexibly obtain the downlink reference signal based on the configuration information and determine the path loss and transmission power, thereby overcoming the technical problem in related technologies where the uplink carrier selected by the terminal device in the flexible cell is far from the carrier frequency band of the downlink synchronization signal, making it impossible to accurately determine the transmission power.

[0107] Based on the foregoing embodiments, the power determination method for terminal devices provided in this application determines the path loss based on the downlink reference signal carried by the downlink carrier in the configuration information. Figure 2 accomplish, Figure 2 A schematic diagram of the process for determining path loss based on the downlink reference signal carried by the downlink carrier, as provided in the embodiments of this application, is shown below. Figure 2 As shown, the process may include steps A1 to A3:

[0108] Step A1: Obtain the measurement results obtained by the terminal device measuring the downlink reference signal.

[0109] In one implementation, the measurement result may be obtained by averaging at least one measurement value obtained by the terminal device from measuring a reference signal received within a specified time range. For example, within the specified time range, the terminal device may acquire at least one downlink reference signal.

[0110] In one implementation, the measurement result may include RSRP or Reference Signal Receiving Quality (RSRQ) in the related art.

[0111] Step A2: Obtain the reference signal power of the downlink reference signal.

[0112] In one implementation, the network-side device can set a reference signal power for the terminal device. For example, when the downlink reference signal is SSB or CSI-RS, the reference signal power of the downlink reference signal can be sent by the network-side device to the terminal device through system messages or Radio Resource Control (RRC) for the terminal device to obtain.

[0113] Step A3: Determine the path loss based on the difference between the reference signal power and the measurement result.

[0114] As can be seen from the above, in the power determination method for terminal devices provided in this application embodiment, since the path loss is determined by the measurement result obtained by the terminal device from the actual measurement of the downlink reference signal and the power of the reference signal, the path loss determined in the power determination method provided in this application embodiment is more consistent with the actual wireless communication environment of the terminal device, thereby improving the accuracy of the path loss.

[0115] In this embodiment of the application, the configuration information also includes information about the downlink carrier corresponding to the power control parameters associated with the uplink signal or the uplink physical channel or the target received power.

[0116] Accordingly, the power determination method provided in the embodiments of this application further includes:

[0117] The transmission power is determined based on the power control parameters or the target received power.

[0118] In one implementation, before determining the transmission power, the terminal device can determine the target downlink carrier from the downlink carrier in the configuration information based on the matching relationship between its uplink signal or uplink physical channel and the uplink signal or uplink physical channel in the configuration information, and then obtain the power control parameter or target received power from the data carried by the target downlink carrier. For example, in the embodiments of this application, the power control parameter and the target received power can represent the specific value of the power control parameter and the specific power value of the target received power.

[0119] In one implementation, the transmission power can be determined by adjusting the transmission power of the terminal device based on specific parameter values ​​of power control parameters or target received power values.

[0120] For example, the power control parameters for different uplink physical channels can be different. For instance, the power control parameters for PUSCH can correspond to P... O_PUSCH,b,f,c (j) Related parameters, where P O_PUSCH,b,f,c (j) is through P O_NOMINAL_PUSCH,f,c (j) and P O_UE_PUSCH,b,f,c (j) is obtained by summing, where j∈{0,1,...,J-1}, and J is an integer greater than 2. In wireless communication protocols, for P O_NOMINAL_PUSCH,f,c (j) and P O_UE_PUSCH,b,f,c The values ​​of (j) distinguish different cases, and their values ​​can also depend on other related parameters.

[0121] In this embodiment of the application, the power control parameters may include P associated with PUSCH. O_PUSCH,b,f,c (j) Accordingly, the configuration information may include P O_PUSCH,b,f,c Information about the downlink carrier where (j) is located.

[0122] For example, power control parameters may also include P O_PUSCH,b,f,c (j) depends on P O_NOMINAL_PUSCH,f,c (j), P O_PRE , △ PREAMBLE_MSG3 and △ MsgA_PUSCH The corresponding network configuration parameters include preambleReceivedTargetPower, msg3-DeltaPreamble, msgADeltaPreamble, p0-NominalWithoutGrant, p0, P0-PUSCH-AlphaSet, p0-PUSCH-Alpha, and p0-NominalWithGrant. The configuration information may also include P... O_PUSCH,b,f,c (j) depends on P O_NOMINAL_PUSCH,f,c (j), P O_PRE , △ PREAMBLE_MSG3 and △ MsgA_PUSCH Information about the downlink carriers containing parameters such as preambleReceivedTargetPower, msg3-DeltaPreamble, msgADeltaPreamble, p0-NominalWithoutGrant, p0, P0-PUSCH-AlphaSet, p0-PUSCH-Alpha, and p0-NominalWithGrant.

[0123] For example, for a PUCCH, the power control parameters may include P O_PUCCH,b,f,c (q uThe network configuration parameters on which the power control parameters depend; for SRS, power control parameters may include P. O_SRS,b,f,c (q s The network configuration parameters that it depends on.

[0124] It should be noted that the above parameters are merely illustrative examples and are not intended to limit the power control parameters. The power control parameters in the embodiments of this application may also include other network configuration parameters.

[0125] As can be seen from the above, in the power determination method for terminal devices provided in the embodiments of this application, the configuration information sent by the network side obtained by the terminal device may also include information on the downlink carrier corresponding to the power control parameters associated with the uplink signal or the uplink physical channel or the target received power, thereby providing a variety of transmission power determination methods and further improving the flexibility of transmission power determination.

[0126] In this embodiment of the application, when the uplink physical channel is PRACH, the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with PRACH.

[0127] For example, the carrier index of the downlink carrier corresponding to the target received power associated with PRACH, which is included in the configuration information, can be reflected by configuring RACH-ConfigGeneric. For instance, the ReceivedTargetPower-referenceCarrier in RACH-ConfigGeneric can be configured as INTEGER(0..N),OPTIONAL,--Need R, thereby indicating the carrier index of the downlink carrier corresponding to the target power setting through ReceivedTargetPower-referenceCarrier.

[0128] In related technologies, the carrier index of the downlink carrier corresponding to the target received power is not set. Taking PRACH as an example, the serving cell configuration ServingCellConfig contains the uplink configuration UplinkConfig, which contains the BWP-Uplink configuration, including the Random Access Channel (RACH) configuration. The target received power is set in the RACH configuration. Therefore, by parsing the above configuration information layer by layer, the serving cell corresponding to the target received power of PRACH can be determined.

[0129] In related technologies, a serving cell has only one uplink carrier, or may also contain one SUL (Supply UL), and each serving cell contains only one downlink carrier. Therefore, the target received power configured for the uplink carrier or SUL naturally corresponds to the unique downlink carrier in the current serving cell. However, in elastic cells, there are multiple downlink carriers within the same serving cell. Therefore, network-side equipment needs to configure the corresponding downlink carrier for the target received power of PRACH. Thus, while configuring the target received power for the terminal equipment, the network-side equipment also needs to configure a downlink carrier corresponding to the target received power. In other words, the carrier index of the downlink carrier corresponding to the target received power of PRACH needs to be reflected in the configuration information.

[0130] Accordingly, the power determination method for terminal devices provided in the embodiments of this application may further include Figure 3 The steps shown, Figure 3 A flowchart illustrating the process of determining the transmission power of a terminal device on PRACH, as provided in this application embodiment, is shown below. Figure 3 As shown, the process may include steps B1 to B3:

[0131] Step B1: Determine the target downlink carrier based on the carrier index of the downlink carrier corresponding to the target received power associated with PRACH in the configuration information.

[0132] For example, the terminal device can obtain the carrier index or identifier of the downlink carrier corresponding to the target received power associated with PRACH from the configuration information, and determine the target downlink carrier based on the carrier index or identifier of the downlink carrier corresponding to the target received power associated with PRACH.

[0133] Step B2: Obtain the maximum transmit power configured for the terminal device.

[0134] For example, the network-side device can configure the maximum transmit power for the terminal device; for example, the network-side device can set the maximum transmit power for the terminal device through PREAMBLE_RECEIVED_TARGET_POWER signaling.

[0135] Step B3: Determine the transmission power of the terminal device on PRACH based on the target received power and maximum transmit power carried by the target downlink carrier.

[0136] For example, given the target receive power and maximum transmit power of the terminal device, the transmission power of the terminal device on PRACH can be determined by equation (1).

[0137] As can be seen from the above, when the uplink physical channel of the terminal device is PRACH, the terminal device can determine the target downlink carrier by using the carrier index of the downlink carrier corresponding to the target received power in the configuration information, and obtain the target received power from the target downlink carrier to determine the transmission power of the terminal device on PRACH. This enables the terminal device to accurately determine the transmission power on any PRACH when it selects any uplink physical channel to access, thus overcoming the technical limitation in related technologies that the terminal device cannot accurately determine the transmission power.

[0138] In this embodiment of the application, when the uplink physical channel is PUSCH or PUCCH and the uplink signal is SRS, the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with PUSCH, PUCCH or SRS.

[0139] For example, when the uplink physical channel is PUCCH, the configuration information can be reflected by configuring PUCCH-ConfigCommon. For instance, PUCCH-ConfigCommon p0-referenceCarrier can be configured as INTEGER(0..N),OPTIONAL,--Need R, thereby setting the carrier index of the downlink carrier corresponding to the power control parameters.

[0140] Accordingly, the power control method for terminal devices provided in the embodiments of this application may further include Figure 4 The process shown is as follows: Figure 4 This application provides a schematic diagram of the process for determining the transmission power based on power control parameters and maximum transmit power, as shown in the embodiments. Figure 4 As shown, the process may include steps C1 to C3:

[0141] Step C1: Determine the target downlink carrier based on the carrier index of the downlink carrier corresponding to the power control parameters.

[0142] For example, the terminal device can obtain the carrier index corresponding to the power control parameters from the configuration information, and then determine the target downlink carrier based on the carrier index or identifier corresponding to the power control parameters.

[0143] Step C2: Obtain the maximum transmit power configured for the terminal device.

[0144] For example, the maximum transmit power can be configured by the network-side device for the terminal device; for example, the maximum transmit power can be P in equation (1). CMAX,f,c (i).

[0145] Step C3: Determine the transmission power based on the power control parameters and maximum transmit power in the target downlink carrier.

[0146] For example, the values ​​of the power control parameters will vary for different downlink carriers.

[0147] The method used by the terminal device to determine the transmission power is the same as that in related technologies, and will not be described again here.

[0148] As can be seen from the above, in the power determination method for terminal devices provided in this application embodiment, when the uplink physical channel is PUSCH or PUCCH and the uplink signal is SRS, the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with PUSCH, PUCCH or SRS. Thus, when the uplink physical channel selected by the terminal device is PUSCH or PUCCH and the uplink signal is SRS, the power control parameters can be quickly obtained, and the transmission power of the terminal device can be flexibly determined by combining the maximum transmit power configured by the network side device for the terminal device.

[0149] In practical applications, for some non-anchor carriers that transmit primary synchronization signals (PSS) / secondary synchronization signals (SSS), the terminal device may acquire measurement information of these carriers during the search process. However, since it needs to receive system messages on the anchor carrier, the terminal device will switch to the anchor carrier, acquire random access information on the anchor carrier, and determine the selection of non-anchor carrier B for random access based on the carrier selection strategy. Then, based on the configuration information acquired from the anchor carrier, such as the power control parameters associated with the uplink signal or uplink physical channel, or the target downlink carrier where the target received power of the PRCH is located, the terminal device will perform signal measurement to calculate the path loss.

[0150] For terminal devices that obtain downlink synchronization signals directly from the anchor carrier, or for non-anchor carriers selected according to the random access strategy that are not carriers they have previously measured, these terminal devices can determine the target downlink carrier containing the downlink reference signal corresponding to their uplink signal or uplink physical channel based on the configuration information, and perform rapid measurement based on the downlink reference signal, such as SSB, carried by the target downlink carrier, thereby providing a reference for determining the transmission power.

[0151] For some traditional terminals serving on non-anchor carriers, these non-anchor carriers carry complete system information. However, in order to better control the access of new terminal devices, the anchor carrier associated with the non-anchor carrier can be indicated in the system information carried by the non-anchor carrier. The traditional terminals can then be instructed to read the system information from the anchor carrier and determine the final access carrier.

[0152] Based on the foregoing embodiments, in the power determination method for terminal devices provided in this application, the configuration information includes information on multiple downlink carriers where the downlink reference signal associated with the uplink signal or uplink physical channel is located.

[0153] For example, the network-side device can configure multiple downlink carriers carrying downlink reference signals associated with the uplink signal or uplink physical channel for the uplink signal or uplink physical channel; it can also configure frequency domain resource blocks containing the downlink reference signals associated with the uplink signal or uplink physical channel.

[0154] For example, multiple downlink carriers in the configuration information should each carry a downlink reference signal as a downlink reference signal for calculating path loss.

[0155] Accordingly, determining the path loss based on the downlink reference signal carried by the downlink carrier can be achieved in any of the following ways:

[0156] Based on the frequency relationship between the carrier where the uplink signal or uplink physical channel is located and multiple downlink carriers in the configuration information, one of the multiple downlink carriers is determined as the target downlink carrier; the path loss is determined based on the downlink reference signal in the target downlink carrier.

[0157] or,

[0158] Based on the terminal device selection method, one of multiple downlink carriers is determined as the target downlink carrier, and the path loss is determined based on the downlink reference signal in the target downlink carrier.

[0159] In one implementation, based on the frequency relationship between the carrier where the uplink signal or uplink physical channel is located and multiple downlink carriers in the configuration information, one of the multiple downlink carriers is determined as the target downlink carrier. This can be done by obtaining the frequency of the carrier where the uplink signal or uplink physical channel is located, and then determining the downlink carrier among the multiple downlink carriers that is closest to the aforementioned frequency as the target downlink carrier.

[0160] In one implementation, based on the terminal device selection method, one of a plurality of downlink carriers is determined as the target downlink carrier, and the path loss is determined based on the downlink reference signal in the target downlink carrier. This can be achieved in any of the following ways:

[0161] The system acquires historical measurement results obtained by the terminal device from the downlink reference signal measurement; based on the historical measurement results, it determines the target downlink carrier from multiple downlink carriers in the configuration information; and determines the path loss based on the downlink reference signal carried by the target downlink carrier.

[0162] Based on historical measurement results and the frequency relationship between the uplink carrier selected by the terminal and multiple downlink carriers in the configuration information, the target downlink carrier is determined from the multiple downlink carriers in the configuration information, and the path loss is determined based on the downlink reference signal carried by the target downlink carrier.

[0163] In one implementation, if the historical measurement results do not include the measurement results of the downlink reference signal, the terminal device may select a target downlink carrier from multiple downlink carriers in the configuration information based on the frequency relationship between the selected uplink carrier or uplink physical channel and multiple downlink carriers in the configuration information.

[0164] In one implementation, if the historical measurement results include at least one downlink reference signal, and the frequency of the carrier containing the downlink reference signal in the historical measurement results is significantly different from the frequency interval between the uplink carrier or uplink physical channel selected by the terminal device, a downlink carrier whose frequency is close to that of the uplink carrier or uplink physical channel selected by the terminal device can be determined as the target downlink carrier from among multiple downlink carriers in the configuration information based on the frequency interval. For example, in the above case, the frequency interval between the target downlink carrier and the uplink carrier or uplink physical channel of the terminal device can be smaller than the frequency interval between the uplink carrier or uplink physical channel of the terminal device and the carrier containing the downlink reference signal in the historical measurement results.

[0165] In one implementation, if the historical measurement results include measurement results of at least one downlink measurement signal, and the frequency of the carrier in which the downlink reference signal is located in the historical measurement results is close to the frequency interval between the uplink carrier or uplink physical channel selected by the terminal device, the downlink carrier with a smaller frequency interval than the uplink carrier or uplink physical channel selected by the terminal device can be determined from the historical measurement results as the target downlink carrier.

[0166] For example, terminal devices may be able to search for non-anchor carriers, but they still need to obtain configuration information and carrier selection criteria from anchor carriers. If the carrier selection criteria indicate that a previously searched non-anchor carrier should be selected for access, then historical measurement information can be used as a power consumption reference for path loss.

[0167] As can be seen from the above, in the power determination method for terminal devices provided in this application embodiment, the terminal device can also flexibly determine the target downlink carrier by configuring information or selecting a method, and then determine the path loss based on the downlink reference signal carried by the target downlink carrier, thereby making the path loss determination method more flexible; at the same time, the power control accuracy corresponding to the path loss calculation by selecting the downlink reference signal carried by the downlink carrier that is close to the uplink physical channel frequency of the terminal device is higher than the power control accuracy corresponding to the path loss calculation by anchor carrier.

[0168] In this embodiment of the application, the configuration information also includes reference signal configuration information for configuring the downlink reference signal.

[0169] For example, for the initial access reference signal PSS / SSS, the reference signal configuration information may include information such as the period of the SSB and the time domain location of the SSB.

[0170] Accordingly, before determining the path loss based on the downlink reference signal carried by the downlink carrier, the power determination method provided in this application embodiment may further include Figure 5 The process shown is as follows: Figure 5 This is a schematic diagram of the first process for obtaining the downlink reference signal provided in an embodiment of this application, such as... Figure 5 As shown, the process may include steps D1 to D2:

[0171] Step D1: Obtain the reference signal configuration information from the configuration information.

[0172] The reference signal configuration information includes at least the time-domain and frequency-domain resource configuration information of the downlink reference signal.

[0173] Step D2: Based on the reference signal configuration information, obtain the downlink reference signal from the data carried by the downlink carrier in the configuration information.

[0174] In one implementation, the terminal device can first determine the target downlink carrier based on configuration information, and then obtain a downlink reference signal from the data carried by the target downlink carrier based on the reference signal configuration information in the configuration information. For example, the terminal device can obtain the downlink reference signal from the data carried by the target downlink carrier within a specified period based on the time-domain configuration information of the reference signal; the terminal device can also obtain the downlink reference signal from the data carried by the target downlink carrier based on the data structure information of the reference signal; the terminal device can also obtain the downlink reference signal from the data carried by the target downlink carrier based on both the period configuration information and the data structure configuration information of the reference signal.

[0175] As can be seen from the above, in the power determination method for terminal devices provided in this application embodiment, the terminal device can determine the target downlink carrier according to the configuration information, and can also quickly obtain the downlink reference signal from the data carried by the target downlink carrier according to the reference signal configuration information in the configuration information, thereby improving the acquisition efficiency of the downlink reference signal, and thus improving the determination efficiency of path loss and transmission power.

[0176] Based on the foregoing embodiments, in the power determination method for terminal devices provided in this application, before the terminal device determines the path loss based on the downlink reference signal carried by the downlink carrier in the configuration information, it can also... Figure 6 The procedure shown is to obtain the downlink reference signal. Figure 6 This is a schematic diagram of the second process for obtaining the downlink reference signal provided in an embodiment of this application, as shown below. Figure 6 As shown, the process may include steps E1 to E2:

[0177] Step E1: If the downlink carrier corresponding to the uplink carrier of the terminal device or the uplink physical channel does not carry a downlink reference signal for determining path loss, determine the target downlink carrier based on the configuration information.

[0178] Step E2: Obtain the downlink reference signal from the data carried by the target downlink carrier.

[0179] For example, in practical applications, the network-side device may assign a default downlink carrier to the uplink carrier where the uplink physical channel selected by the terminal device is located, and the downlink carrier may not carry a downlink synchronization signal. In this case, the terminal device may use the method provided in the aforementioned embodiments to determine the target downlink carrier based on the downlink carrier in the configuration information, and then obtain the downlink reference signal from the data carried by the target downlink carrier.

[0180] For example, assuming that the 2.6 GHz TDD carrier can be the anchor carrier of the flexible cell, and the 1.8 GHz FDD carrier, the 2.0 GHz FDD carrier, the 2.3 GHz SUL, and the 4.9 GHz TDD carrier can be used as non-anchor carriers of the flexible cell; for the 2.0 GHz FDD carrier, its corresponding downlink carrier may not transmit PSS / SSS signals. In this case, the configuration information can indicate that the downlink reference signal associated with the 2.0 GHz FDD carrier is located in the 1.8 GHz FDD, or the power control parameters associated with the PUCCH or PUSCH are located on the downlink carrier in the 1.8 GHz FDD, or the carrier with the target received power associated with the PRACH is the downlink carrier in the 1.8 GHz FDD.

[0181] As can be seen from the above, in the power determination method for terminal devices provided in this application embodiment, when the downlink carrier corresponding to the uplink carrier selected by the terminal device does not carry the downlink reference signal used to determine the path loss, the terminal device can quickly determine the target downlink carrier and then determine the downlink reference signal and transmission power according to the configuration information, thereby breaking through the technical bottleneck that the downlink carrier corresponding to the terminal device in the elastic cell does not carry the downlink reference signal and therefore cannot determine the transmission power.

[0182] Based on the foregoing embodiments, this application also provides another power determination method, which is applied to network-side devices.

[0183] It should be noted that this method can be implemented by the processor of the network-side device, and the processor can be at least one of ASIC, DSP, DSPD, PLD, FPGA, CPU, controller, microcontroller, and microprocessor.

[0184] Figure 7 This is a flowchart illustrating a power determination method for network-side devices provided in an embodiment of this application. Figure 7 As shown, the method may include steps 701 to 702:

[0185] Step 701: Determine configuration information.

[0186] The configuration information includes information about the downlink carrier in which the downlink reference signal associated with the uplink signal or uplink physical channel is located.

[0187] Step 702: Broadcast configuration information.

[0188] The configuration information is used by the terminal device to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or the uplink physical channel based on the path loss.

[0189] For example, network-side devices can broadcast configuration information via anchor carriers.

[0190] As can be seen from the above, in the power determination method for network-side devices provided in this application embodiment, after the network-side device determines the configuration information, it can broadcast the configuration information so that the terminal device can flexibly obtain the downlink reference signal to determine the transmission power, thereby making the transmission power of the terminal device in the elastic cell more accurate.

[0191] Based on the foregoing embodiments, in the power determination method for network-side devices provided in this application embodiment, when the uplink physical channel is PUSCH or PUCCH and the uplink signal is SRS, the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with the uplink PUSCH, PUCCH or SRS.

[0192] Based on the foregoing embodiments, in the power determination method for network-side devices provided in this application embodiment, when the uplink physical channel is PRACH, the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with PRACH.

[0193] As can be seen from the above, in the power determination method for network-side devices provided in the embodiments of this application, the network-side devices configure different configuration information for various uplink physical channels or uplink signals, thereby providing a guarantee for determining path loss when the terminal device accesses various uplink physical channels, and thus making the terminal device more efficient and accurate in determining the transmission power.

[0194] Based on the foregoing embodiments, in the power determination method for network-side devices provided in this application embodiment, the configuration information includes information on multiple downlink carriers where the downlink reference signal associated with the uplink signal or uplink physical channel is located.

[0195] As can be seen from the above, in this embodiment of the application, the network-side device includes information on multiple downlink carriers in the configuration information of the downlink reference signal associated with the uplink signal or uplink physical channel. In this way, the terminal device can select a downlink carrier that is close to the current operating frequency band of the terminal device from the multiple downlink carriers in the configuration information as the target downlink carrier, thereby reducing the requirements for frequency band support of the terminal device, making the way the terminal device obtains the downlink reference signal more flexible, and also improving the accuracy of path loss and transmission power of the terminal device.

[0196] Based on the foregoing embodiments, the power determination method for network-side devices provided in this application embodiment may further include the following operations before broadcasting configuration information:

[0197] Determine the reference signal configuration information and add it to the configuration information.

[0198] The reference signal configuration information includes at least the time-domain and frequency-domain resource configuration information of the downlink reference signal.

[0199] As can be seen from the above, after the network-side device provided in this application determines and broadcasts the reference signal configuration information, the terminal device can quickly and accurately obtain the downlink reference signal based on the reference signal configuration information after receiving the reference signal configuration information, thereby improving the efficiency of path loss and transmission power determination.

[0200] Based on the foregoing embodiments, this application also provides a terminal device 8. Figure 8 This is a first structural schematic diagram of the terminal device 8 provided in an embodiment of this application, as shown below. Figure 8As shown, the terminal device 8 may include:

[0201] The first transceiver module 801 is used to obtain configuration information sent by the network-side device; wherein, the configuration information includes information about the downlink carrier of the downlink reference signal associated with the uplink signal or uplink physical channel;

[0202] The first determining module 802 is used to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or the uplink physical channel based on the path loss.

[0203] In one embodiment, the first determining module 802 is used to acquire the measurement result obtained by the terminal device measuring the downlink reference signal; acquire the reference signal power of the downlink reference signal; and determine the path loss based on the difference between the reference signal power and the measurement result.

[0204] In one implementation, the configuration information also includes information about the downlink carrier corresponding to the power control parameters associated with the uplink signal or uplink physical channel or the target received power;

[0205] The first determining module 802 is used to determine the transmission power based on power control parameters or target received power.

[0206] In one implementation, when the uplink physical channel is a Physical Random Access Channel (PRACH), the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH; the first determining module 802 is used to determine the target downlink carrier based on the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH in the configuration information; obtain the maximum transmit power configured for the terminal device; and determine the transmission power of the terminal device on the PRACH based on the target received power carried by the target downlink carrier and the maximum transmit power.

[0207] In one implementation, when the uplink physical channel is PUSCH or PUCCH and the uplink signal is SRS, the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with PUSCH, PUCCH or SRS.

[0208] The first determining module 802 is used to determine the target downlink carrier based on the carrier index of the downlink carrier corresponding to the power control parameters; obtain the maximum transmit power configured for the terminal device; and determine the transmission power based on the power control parameters and the maximum transmit power in the target downlink carrier.

[0209] In one implementation, the configuration information includes information about multiple downlink carriers containing a downlink reference signal associated with an uplink signal or uplink physical channel;

[0210] The first determining module 802 is used to determine one of the multiple downlink carriers as a target downlink carrier based on the frequency relationship between the carrier where the uplink signal or uplink physical channel is located and multiple downlink carriers in the configuration information, and to determine the path loss based on the downlink reference signal in the target downlink carrier.

[0211] or,

[0212] Based on the terminal device selection method, one of multiple downlink carriers is determined as the target downlink carrier, and the path loss is determined based on the downlink reference signal in the target downlink carrier.

[0213] In one implementation, the configuration information also includes reference signal configuration information for configuring downlink reference signals.

[0214] The first determining module 802 is used to obtain reference signal configuration information in the configuration information; and based on the reference signal configuration information, to obtain a downlink reference signal from the data carried by the downlink carrier in the configuration information; wherein the reference signal configuration information includes at least the time domain and frequency domain resource configuration information of the downlink reference signal.

[0215] In one embodiment, the first determining module 802 is configured to determine a target downlink carrier based on configuration information when the downlink carrier corresponding to the uplink carrier where the uplink signal of the terminal device or the uplink physical channel is located does not carry a downlink reference signal for determining path loss; and to obtain the downlink reference signal from the data carried by the target downlink carrier.

[0216] Based on the foregoing embodiments, this application also provides another terminal device 8. Figure 9 This is a schematic diagram of the second structure of the terminal device 8 provided in the embodiments of this application, as shown below. Figure 9 As shown, the terminal device 8 may include a first processor 901 and a first memory 902; wherein, the first memory 902 stores a computer program, which, when executed by the first processor, can implement the power determination method applied to the terminal device 8 as described in any of the preceding embodiments.

[0217] The aforementioned first processor 901 can be at least one of ASIC, DSP, DSPD, PLD, FPGA, CPU, controller, microcontroller, and microprocessor.

[0218] The first memory 902 described above can be volatile memory, such as random access memory (RAM); or non-volatile memory, such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid state disk (SSD); or a combination of the above types of memory, and provides instructions and data to the first processor 901.

[0219] For example, the first transceiver module 801 and the first determination module 802 can be implemented by the first processor 901.

[0220] Based on the foregoing embodiments, this application provides a network-side device 10. Figure 10 This is a first structural schematic diagram of the network-side device 10 provided in an embodiment of this application. (See attached diagram.) Figure 10 As shown, the network-side device 10 includes:

[0221] The second determining module 1001 is used to determine configuration information; wherein, the configuration information includes information about the downlink carrier where the downlink reference signal associated with the uplink signal or uplink physical channel is located;

[0222] The second transceiver module 1002 is used to broadcast configuration information; wherein, the configuration information is used to enable the terminal device to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or uplink physical channel of the terminal device based on the path loss.

[0223] In one implementation, when the uplink physical channel is PUSCH or PUCCH and the uplink signal is SRS, the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with the uplink PUSCH, PUCCH, or SRS.

[0224] In one implementation, when the uplink physical channel is PRACH, the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with PRACH.

[0225] In one implementation, the configuration information includes information about multiple downlink carriers containing a downlink reference signal associated with an uplink signal or uplink physical channel.

[0226] In one embodiment, the second determining module 1001 is used to determine reference signal configuration information and add the reference signal configuration information to the configuration information; wherein, the reference signal configuration information includes at least the time domain and frequency domain resource configuration information of the downlink reference signal.

[0227] Based on the foregoing embodiments, this application also provides another network-side device 10. Figure 11 This is a schematic diagram of the second structure of the network-side device 10 provided in an embodiment of this application. (See attached diagram.) Figure 11 As shown, the network-side device 10 includes a second processor 1101 and a second memory 1102. The second memory 1102 stores a computer program, which, when executed by the second processor 1101, can implement the power determination method applied to the network-side device as described above.

[0228] The second processor 1101 mentioned above can be at least one of ASIC, DSP, DSPD, PLD, FPGA, CPU, controller, microcontroller, and microprocessor.

[0229] The aforementioned second memory 1102 may be volatile memory, such as RAM; or non-volatile memory, such as ROM, flash memory, HDD or SSD; or a combination of the above types of memory, and provides instructions and data to the second processor 901.

[0230] Based on the foregoing embodiments, this application also provides a power determination system 12. Figure 12 This is a schematic diagram of the power determination system 12 provided in an embodiment of this application, as shown below. Figure 12 As shown, the power determination system 12 may include the terminal device 8 as described in any of the previous embodiments and the network-side device 10 as described in any of the previous embodiments.

[0231] For example, after determining the configuration information, the network-side device 10 can broadcast the configuration information; wherein, the configuration information includes information about the downlink carrier in which the downlink reference signal associated with the uplink signal or uplink physical channel is located.

[0232] For example, terminal device 8 can obtain configuration information broadcast by network-side device 10; when terminal device 8 needs to send uplink signals or select to access uplink physical channels, it can determine path loss based on the downlink reference signal carried by the downlink carrier in the configuration information, and then determine the transmission power of terminal device 8 based on path loss.

[0233] For example, when the uplink physical channel is PRACH, the configuration information determined by the network-side device 10 may include the carrier index of the downlink carrier corresponding to the target received power associated with PRACH. In this case, when the uplink physical channel accessed by the terminal device 8 is PRACH, the target downlink carrier can be determined based on the carrier index of the downlink carrier corresponding to the target received power in the configuration information, and the target received power can be obtained from the data carried by the target downlink carrier, thereby determining the transmission power.

[0234] For example, when the uplink physical channel is PUCCH or PUSCH and the uplink signal is SRS, the configuration information determined by the network-side device 10 may include the carrier index of the downlink carrier corresponding to the power control parameters associated with PUSCH, PUCCH, or SRS. In this case, when the uplink physical channel accessed by the terminal device 8 is PUCCH or PUSCH and the uplink signal is SRS, the target downlink carrier can be determined based on the carrier index of the downlink carrier corresponding to the power control parameters associated with PUSCH, PUCCH, or SRS in the configuration information, and the power control parameters can be obtained from the data carried by the target downlink carrier to determine the transmission power.

[0235] For example, network-side device 10 can also determine reference signal configuration information, add the reference signal configuration information to the configuration information, and then broadcast it. After receiving the configuration information, terminal device 8 can obtain the reference signal configuration information from the configuration information, thereby laying the foundation for terminal device 8 to efficiently obtain downlink reference signals and improving the efficiency of transmission power determination.

[0236] For example, the configuration information determined by the network-side device 10 includes information on multiple downlink carriers where the downlink reference signal associated with the uplink signal or uplink physical channel is located; thus, after receiving the configuration information, the terminal device 8 can select one downlink carrier from the multiple downlink carriers as the target downlink carrier, thereby reducing the requirements on the operating frequency band of the terminal device 8 and improving the accuracy of the terminal device in calculating path loss and transmission power.

[0237] Based on the foregoing embodiments, this application also provides a computer-readable storage medium storing a computer program that, when executed by a processor of an electronic device, can implement the power determination method as described above for a terminal device 8 or a network-side device 10.

[0238] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0239] The methods disclosed in the various method embodiments provided in this application can be arbitrarily combined to obtain new method embodiments without conflict.

[0240] The features disclosed in the various product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0241] The features disclosed in the various method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method or device embodiments.

[0242] It should be noted that the aforementioned computer-readable storage media can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM), etc.; or it can be various electronic devices including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0243] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0244] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0245] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware nodes. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0246] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0247] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0248] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0249] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for determining power, characterized in that, The method is applied to a terminal device, and the method includes: Obtain configuration information sent by the network-side device; wherein, the configuration information includes information about the downlink carrier in which the downlink reference signal associated with the uplink signal or uplink physical channel is located; The path loss is determined based on the downlink reference signal carried by the downlink carrier; Based on the path loss, determine the transmission power of the uplink signal or uplink physical channel; Wherein, when the uplink physical channel is a Physical Random Access Channel (PRACH), the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH; the method further includes: The target downlink carrier is determined based on the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH in the configuration information; Obtain the maximum transmit power configured for the terminal device; The transmission power of the terminal device on the PRACH is determined based on the target received power carried by the target downlink carrier or the configuration information and the maximum transmit power. When the uplink physical channel is a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH), and the uplink signal is a Channel Sounding Reference Signal (SRS), the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with the PUSCH, PUCCH, or SRS; the method further includes: The target downlink carrier is determined based on the carrier index of the downlink carrier corresponding to the power control parameters; Obtain the maximum transmit power configured for the terminal device; The transmission power is determined based on the power control parameters in the target downlink carrier or the configuration information and the maximum transmit power.

2. The method according to claim 1, characterized in that, Determining the path loss based on the downlink reference signal carried by the downlink carrier includes: Obtain the measurement result obtained by the terminal device from the measurement of the downlink reference signal; Obtain the reference signal power of the downlink reference signal; The path loss is determined based on the difference between the reference signal power and the measurement result.

3. The method according to claim 1, characterized in that, The configuration information includes information about multiple downlink carriers containing a downlink reference signal associated with the uplink signal or the uplink physical channel; the determination of path loss based on the downlink reference signal carried by the downlink carrier includes: Based on the frequency relationship between the carrier where the uplink signal or uplink physical channel is located and the plurality of downlink carriers in the configuration information, one of the plurality of downlink carriers is determined as a target downlink carrier, and the path loss is determined based on the downlink reference signal in the target downlink carrier. or, Based on the method selected by the terminal device, one of the plurality of downlink carriers is determined as the target downlink carrier, and the path loss is determined based on the downlink reference signal in the target downlink carrier.

4. The method according to claim 1, characterized in that, The configuration information also includes reference signal configuration information for the downlink reference signal; before determining the path loss based on the downlink reference signal carried by the downlink carrier, the method further includes: Obtain reference signal configuration information from the configuration information; wherein, the reference signal configuration information includes at least the time-domain and frequency-domain resource configuration information of the downlink reference signal; Based on the reference signal configuration information, the downlink reference signal is obtained from the data carried by the downlink carrier in the configuration information.

5. The method according to claim 1, characterized in that, Before determining the path loss based on the downlink reference signal carried by the downlink carrier, the method further includes: If the downlink carrier corresponding to the uplink carrier where the uplink signal or uplink physical channel of the terminal device is located does not carry a downlink reference signal for determining path loss, the target downlink carrier is determined based on the configuration information. The downlink reference signal is obtained from the data carried by the target downlink carrier.

6. A method for determining power, characterized in that, The method is applied to a network-side device, and the method includes: Determine configuration information; wherein, the configuration information includes information about the downlink carrier in which the downlink reference signal associated with the uplink signal or uplink physical channel is located; The configuration information is broadcast; wherein the configuration information is used for the terminal device to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or the uplink physical channel based on the path loss; Wherein, when the uplink physical channel is a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH) and the uplink signal is a Channel Sounding Reference Signal (SRS), the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with the PUSCH, the PUCCH, or the SRS. When the uplink physical channel is a Physical Random Access Channel (PRACH), the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH.

7. The method according to claim 6, characterized in that, The configuration information includes information about multiple downlink carriers containing the downlink reference signal associated with the uplink signal or uplink physical channel.

8. The method according to claim 6, characterized in that, Before broadcasting the configuration information, the following is also included: Determine the reference signal configuration information and add the reference signal configuration information to the configuration information; wherein, the reference signal configuration information includes at least the time domain and frequency domain resource configuration information of the downlink reference signal.

9. A terminal device, characterized in that, The terminal device includes a first transceiver module and a first determination module; wherein: The first transceiver module is used to acquire configuration information sent by the network-side device; wherein, the configuration information includes information about the downlink carrier of the downlink reference signal associated with the uplink signal or uplink physical channel; The first determining module is used by the terminal device to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or the uplink physical channel based on the path loss. When the uplink physical channel is a Physical Random Access Channel (PRACH), the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH; the first determining module is further configured to: determine the target downlink carrier based on the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH in the configuration information; obtain the maximum transmit power configured for the terminal device; and determine the transmission power of the terminal device on the PRACH based on the target received power carried by the target downlink carrier or the maximum transmit power contained in the configuration information. When the uplink physical channel is PUSCH or PUCCH and the uplink signal is SRS, the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with PUSCH, PUCCH or SRS; the first determining module is further configured to: determine the target downlink carrier based on the carrier index of the downlink carrier corresponding to the power control parameters; obtain the maximum transmit power configured for the terminal device; and determine the transmission power based on the power control parameters and maximum transmit power in the target downlink carrier or the configuration information.

10. A terminal device, characterized in that, The terminal device includes a first processor and a first memory, wherein the first memory stores a computer program, and when the computer program is executed by the first processor, it can implement the power determination method as described in any one of claims 1 to 5.

11. A network-side device, characterized in that, The network-side device includes a second determining module and a second transceiver module, wherein: The second determining module is used to determine configuration information; wherein, the configuration information includes information about the downlink carrier containing the downlink reference signal associated with the uplink signal or uplink physical channel; when the uplink physical channel is a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH) and the uplink signal is a Channel Sounding Reference Signal (SRS), the configuration information includes the carrier index of the downlink carrier corresponding to the power control parameters associated with the PUSCH, the PUCCH, or the SRS; when the uplink physical channel is a Physical Random Access Channel (PRACH), the configuration information includes the carrier index of the downlink carrier corresponding to the target received power associated with the PRACH; The second transceiver module is used to broadcast the configuration information; wherein the configuration information is used for the terminal device to determine the path loss based on the downlink reference signal carried by the downlink carrier, and to determine the transmission power of the uplink signal or the uplink physical channel based on the path loss.

12. A network-side device, characterized in that, The network-side device includes a second processor and a second memory, wherein the second memory stores a computer program that, when executed by the second processor, enables the power determination method as described in any one of claims 6 to 8.

13. A power determination system, characterized in that, The system includes a terminal device as described in any one of claims 9 to 10, and a network-side device as described in any one of claims 11 to 12.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor of an electronic device, enables the power determination method as described in any one of claims 1 to 5 or 6 to 8.

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