Apparatus and method of wireless communication

Abstract

A wireless communication method of a user equipment (UE) includes receiving a first parameter associated with a path loss difference between a downlink link and an uplink link from a base station; receiving a downlink reference signal from the base station; and estimating a path loss value based on the downlink reference signal.

Description

Technical Field

[0001] This disclosure relates to the field of communication systems, and more specifically, to apparatus and methods for wireless communication. Background Technology

[0002] The current drawback of multi-transmission / reception point (TRP) transmission is that downlink (DL) and uplink (UL) communication between the system and a single user equipment (UE) originates from the same TRP. This means the UE can use path loss measured from the DL channel to determine the transmission (Tx) power of the uplink transmission. However, in some deployment scenarios, the system can deploy separate TRPs for DL ​​transmission and UL reception. The advantage of this deployment is that the UL-only TRP can provide significantly better signal coverage, thus improving system throughput. The current system, assuming DL and UL have the same TRP, is not suitable for deployment scenarios where DL and UL have different TRPs.

[0003] Therefore, devices and methods for wireless communication are needed. Summary of the Invention

[0004] The purpose of this disclosure is to provide an apparatus and method for wireless communication that can solve problems and other issues in the prior art, calculate the transmission power of uplink transmission to an uplink-only transmit / receive point (TRP), accurately measure the path loss of the uplink channel for an uplink-only TRP in a multi-TRP system, and / or improve the performance of uplink transmission.

[0005] In a first aspect of this disclosure, a method for wireless communication of a user equipment (UE) includes: receiving a first parameter from a base station associated with a path loss difference between a downlink link and an uplink link; receiving a downlink reference signal from the base station; and estimating a path loss value based on the downlink reference signal.

[0006] In a second aspect of this disclosure, the UE includes a receiver and an estimator. The receiver is configured to receive a first parameter from a base station associated with the path loss difference between a downlink link and an uplink link, the receiver is further configured to receive a downlink reference signal from the base station, and the estimator is configured to estimate a path loss value based on the downlink reference signal.

[0007] In a third aspect of this disclosure, the UE includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The UE is configured to perform the methods described above.

[0008] In a fourth aspect of this disclosure, a method for wireless communication of a base station includes: sending a first parameter associated with a path loss difference between a downlink link and an uplink link to a user equipment (UE); sending a downlink reference signal to the UE; and requesting the UE to estimate a path loss value based on the downlink reference signal.

[0009] In a fifth aspect of this disclosure, the base station includes a transmitter and a requester. The transmitter is configured to send a first parameter associated with the path loss difference between the downlink link and the uplink link to a user equipment (UE), the transmitter is further configured to send a downlink reference signal to the UE, and the requester is configured to request the UE to estimate the path loss value based on the downlink reference signal.

[0010] In a sixth aspect of this disclosure, the base station includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The base station is configured to provide the above-described method.

[0011] In a seventh aspect of this disclosure, a plurality of instructions are stored on a non-transitory machine-readable storage medium, which, when executed by a computer, cause the computer to perform the method described above.

[0012] In an eighth aspect of this disclosure, a chip includes a processor configured to invoke and run a computer program stored in a memory, such that a device on which the chip is mounted performs the methods described above.

[0013] In a ninth aspect of this disclosure, a computer-readable storage medium storing a computer program causes a computer to perform the above-described method.

[0014] In a tenth aspect of this disclosure, a computer program product includes a computer program that causes a computer to perform the methods described above.

[0015] In the eleventh aspect of this disclosure, a computer program causes a computer to perform the above-described method. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this disclosure or related technologies, the accompanying drawings, which will be described in the embodiments, are briefly described below. Obviously, the drawings are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any cost.

[0017] Figure 1A This is a schematic diagram of an example of incoherent joint transmission based on multiple transmit / receive points (TRP).

[0018] Figure 1B This is a schematic diagram of another example of multi-TRP transmission.

[0019] Figure 2 This is a block diagram of one or more user equipment (UE) and base stations communicating in a communication network system according to embodiments of the present disclosure.

[0020] Figure 3 This is a block diagram of a UE according to an embodiment of the present disclosure.

[0021] Figure 4 This is a block diagram of a UE according to an embodiment of the present disclosure.

[0022] Figure 5 This is a flowchart illustrating a method of wireless communication performed by a UE according to an embodiment of the present disclosure.

[0023] Figure 6 This is a block diagram of a base station according to an embodiment of the present disclosure.

[0024] Figure 7 This is a block diagram of a base station according to an embodiment of the present disclosure.

[0025] Figure 8 This is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure.

[0026] Figure 9 This is a block diagram of an example computing device according to embodiments of the present disclosure.

[0027] Figure 10 This is a block diagram of a communication system according to an embodiment of the present disclosure. Detailed Implementation

[0028] The technical content, structural features, objectives, and effects of the embodiments of this disclosure are described in detail below with reference to the accompanying drawings. Specifically, the terminology used in the embodiments of this disclosure is only used to describe the purpose of a particular embodiment and is not intended to limit this disclosure.

[0029] The technical solutions of the embodiments disclosed herein can be applied to various communication systems, such as Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Advanced Long Term Evolution (LTE-A), New Radio (NR), evolution systems of NR, LTE-based access to unlicensed spectrum (LTE-U), NR-based access to unlicensed spectrum (NR-U), Universal Mobile Telecommunications System (UMTS), and Global Interoperability for Microwave. WiMAX communication systems, wireless local area networks (WLANs), wireless fidelity (Wi-Fi), future 5th generation (5G) systems (also known as New Radio (NR) systems), or other communication systems.

[0030] Optionally, the base station mentioned in the embodiments of this application can provide communication coverage for a specific geographical area and can communicate with user equipment (UE) located within that coverage area. Optionally, the base station can be a gNB, a base transceiver station (BTS) in a GSM or CDMA system, or a Node B (NB) in a WCDMA system, or an evolved Node B (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN).

[0031] User equipment (UE) can refer to an access terminal, user unit, user station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user equipment. An access terminal can be a cellular wireless phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device, other processing devices coupled to a wireless modem, in-vehicle equipment, wearable device, terminal equipment in future 5G networks, and terminal equipment in future evolved public land mobile networks (PLMNs), etc.

[0032] Optionally, the communication system in this application embodiment can be applied to unlicensed spectrum, where unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, where licensed spectrum can also be considered as non-shared spectrum.

[0033] New Radio (NR) systems introduce both incoherent and coherent joint transmission based on multiple transmit / receive points (TRPs). In incoherent joint transmission, multiple TRPs are connected and coordinated via one or more backhaul links. These backhaul links can be ideal or non-ideal. In ideal backhaul communication, TRPs can exchange dynamic physical downlink shared channel (PDSCH) scheduling information with short latency, allowing different TRPs to coordinate PDSCH transmissions for each transmission. In non-ideal backhaul communication, however, information exchange between TRPs has undesirable latency; therefore, coordination between TRPs can only be semi-static or static.

[0034] In incoherent joint transmission, different TRPs use different physical downlink control channels (PDCCHs) to independently schedule PDSCH transmissions. Each TRP can send downlink control information (DCI) on the PDCCH to schedule one PDSCH transmission. PDSCHs from different TRPs can be scheduled in the same time slot or different time slots. During PDSCH resource allocation, two different PDSCH transmissions from different TRPs can completely overlap or partially overlap.

[0035] To support incoherent joint transmission based on multiple TRPs, the requesting user equipment (UE) receives PDCCH from multiple TRPs and then receives PDSCH sent from multiple TRPs. For each PDSCH transmission, the UE can send a hybrid automatic repeat request (HARQ)-acknowledgement (ACK) message back to the network. In multi-TRP transmissions, the UE can send HARQ-ACK messages for each PDSCH transmission to the TRP transmitting the PDSCH. The UE can also send HARQ-ACK messages for PDSCH transmissions sent from any TRP to a specific TRP.

[0036] Figure 1A An example of incoherent joint transmission based on multiple TRPs is shown. The UE receives PDSCH from the following two TRPs: TRP1 and TRP2 based on incoherent joint transmission. Figure 1A As shown, TRP1 sends a downlink control information (DCI) to the UE for scheduling transmissions to PDSCH1, and TRP2 sends a DCI to the UE for scheduling transmissions to PDSCH2. On the UE side, the UE receives and decodes the DCIs from both TRPs. The UE receives and decodes PDSCH1 based on the DCI from TRP1, and the UE receives and decodes PDSCH2 based on the DCI from TRP2. Figure 1AIn the example shown, the UE reports HARQ-ACKs for PDSCH1 and PDSCH2 to TRP1 and TRP2 respectively. TRP1 and TRP2 use different control resource sets (core sets) and search spaces to send DCIs for scheduling PDSCH transmissions to the UE. Therefore, the network can configure multiple cores and search spaces. Each TRP can be associated with one or more cores and associated search spaces. With this configuration, the TRP will use the associated core to send the DCI for scheduling PDSCH transmissions to the UE. The UE can be requested to decode the DCI associated with any TRP in the core to obtain PDSCH scheduling information.

[0037] Figure 1B Another example of multi-TRP transmission is shown. The UE receives PDSCH from two TRPs, TRP1 and TRP2, based on incoherent joint transmission. Figure 1B As shown, TRP1 sends a DCI to the UE for scheduling transmissions to PDSCH1, and TRP2 sends a DCI to the UE for scheduling transmissions to PDSCH2. On the UE side, the UE receives and decodes the DCIs from both TRPs. The UE receives and decodes PDSCH1 based on the DCI from TRP1, and the UE receives and decodes PDSCH2 based on the DCI from TRP2. Figure 1B In the example shown, the UE reports HARQ-ACKs for PDSCH1 and PDSCH2 to the TRP, which is different from... Figure 1A The HARQ-ACK report shown in the example. Figure 1B The example shown requires an ideal return route between TRP1 and TRP2, while Figure 1A The example shown can be deployed in scenarios where the return between TRP1 and TRP2 is ideal or not.

[0038] NR supports uplink transmission timing advance functionality, where the base station (e.g., gNB) sends a special command to the UE to enable the UE to adjust its uplink (UL) transmission so that the uplink transmission arrives at the gNB at the correct timing. This UL adjustment applies to Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), and Sounding Reference Signal (SRS) transmissions. Timing advance information is delivered to the UE in two ways. The first method is a Random Access Channel (RACH) response (RAR). The gNB can indicate a timing advance value to the UE in a RAR message. The second method is a Medium Access Control (MAC) Control Element (CE) command. The gNB can indicate a timing advance value in a MAC CE command, and the UE can be requested to apply the indicated timing advance value upon receiving the MAC CE command.

[0039] The current drawback of multiple transmit / receive point (TRP) transmissions is that downlink (DL) and uplink (UL) communication between the system and a single user equipment (UE) originates from the same TRP. This means the UE can use path loss measured from the DL channel to determine the transmission (Tx) power of the uplink transmission. However, in some deployment scenarios, the system can deploy separate TRPs for DL ​​transmit and UL receive. The advantage of this deployment is that only the UL TRP can provide significantly better signal coverage, thus improving system throughput. The current system assuming the same TRP for DL ​​and UL is not suitable for deployment scenarios where DL and UL have different TRPs.

[0040] To overcome these and other challenges, some embodiments of this disclosure provide solutions for calculating the transmission power for uplink transmissions for uplink-only TRPs.

[0041] Figure 2As shown, in some embodiments, one or more user equipment (UE) 10 and base station (e.g., next-generation NodeB (gNB) or eNB) 20 are provided communicating in a communication network system 30 (e.g., an NR system) according to embodiments of the present disclosure. The communication network system 30 includes one or more UEs 10 and base station 20. One or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and transceiver 23. The processor 11 or 21 may be configured to implement the functions, processes, and / or methods proposed herein. Various layers of the radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled to the processor 11 or 21 and stores various information to operate the processor 11 or 21. Transceiver 13 or 23 is operatively coupled to processor 11 or 21, and transceiver 13 or 23 transmits and / or receives wireless signals.

[0042] Processor 11 or 21 may include an application-specific integrated circuit (ASIC), another chipset, logic circuitry, and / or data processing devices. Memory 12 or 22 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices. Transceiver 13 or 23 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., procedures, functions, etc.) that perform the functions described herein. These modules may be stored in memory 12 or 22 and executed by processor 11 or 21. Memory 12 or 22 may be implemented within processor 11 or 21 or external to processor 11 or 21. In the case where memory 12 or 22 is implemented externally to processor 11 or 21, memory 12 or 22 may be communicatively coupled to processor 11 or 21 by various means known in the art.

[0043] In some embodiments, transceiver 13 is configured to receive a first parameter from base station 20 associated with the path loss difference between the downlink and uplink links. Transceiver 13 is also configured to receive a downlink reference signal from base station 20, and processor 11 is configured to estimate the path loss value based on the downlink reference signal. This addresses problems in the prior art and other issues related to calculating the transmission power of uplink transmissions to uplink-only transmit / receive points (TRPs), accurately measuring the path loss of the uplink channel for uplink-only TRPs in multi-TRP systems, and / or improving uplink transmission performance.

[0044] In some embodiments, transceiver 23 is configured to send a first parameter to UE 10 associated with the path loss difference between the downlink and uplink links. Transceiver 23 is also configured to send a downlink reference signal to UE 10, and processor 21 is configured to request UE 10 to estimate the path loss value based on the downlink reference signal. This addresses problems in the prior art and other issues related to calculating the transmission power of uplink transmissions to uplink-only transmit / receive points (TRPs), accurately measuring the path loss of the uplink channel for uplink-only TRPs in multi-TRP systems, and / or improving uplink transmission performance.

[0045] Figure 3 An example of a UE 200 according to an embodiment of this application is shown. The UE 200 is configured to implement some embodiments of this disclosure. Some embodiments of this disclosure can be implemented in the UE 200 using any appropriately configured hardware and / or software. The UE 200 includes a receiver 201 and an estimator 202. The receiver 201 is configured to receive a first parameter associated with the path loss difference between the downlink and uplink from a base station, the receiver 201 is also configured to receive a downlink reference signal from the base station, and the estimator 202 is configured to estimate the path loss value based on the downlink reference signal. This can solve problems in the prior art and other issues, calculate the transmission power of uplink transmissions to an uplink-only transmit / receive point (TRP), correctly measure the path loss of the uplink channel for an uplink-only TRP in a multi-TRP system, and / or improve the performance of uplink transmissions.

[0046] Figure 4An example of a UE 300 according to an embodiment of the present disclosure is shown. The UE 300 is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the UE 300 using any suitably configured hardware and / or software. The UE 300 may include a memory 301, a transceiver 302, and a processor 303 coupled to the memory 301 and the transceiver 302. The processor 303 may be configured to implement the functions, processes, and / or methods described herein. Layers of the wireless interface protocol may be implemented in the processor 303. The memory 301 is operatively coupled to the processor 303 and stores various information to operate the processor 303. The transceiver 302 is operatively coupled to the processor 303 and transmits and / or receives wireless signals. The processor 303 may include an application-specific integrated circuit (ASIC), another chipset, logic circuitry, and / or data processing devices. The memory 301 may include read-only memory (ROM), random access memory (RAM), flash memory, a memory card, a storage medium, and / or another storage device. Transceiver 302 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., procedures, functions, etc.) that perform the functions described herein. These modules may be stored in memory 301 and executed by processor 303. Memory 301 may be implemented within processor 303 or external to processor 303. In the case where memory 301 is external to processor 303, memory 301 may be communicatively coupled to processor 303 by various means known in the art.

[0047] In some embodiments, transceiver 302 is configured to receive a first parameter from a base station associated with the path loss difference between the downlink and uplink links. Transceiver 302 is also configured to receive a downlink reference signal from the base station, and processor 303 is configured to estimate the path loss value based on the downlink reference signal. This addresses problems in the prior art and other issues related to calculating the transmission power of uplink transmissions to uplink-only transmit / receive points (TRPs), accurately measuring the path loss of the uplink channel for uplink-only TRPs in multi-TRP systems, and / or improving uplink transmission performance.

[0048] Figure 5This is an example of a wireless communication method 400 performed by a UE according to embodiments of the present disclosure. The wireless communication method 400 performed by the UE is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the wireless communication method 400 performed by the UE using any appropriately configured hardware and / or software. In some embodiments, the wireless communication method 400 performed by the UE includes: operation 402, receiving a first parameter from a base station associated with the path loss difference between the downlink and uplink; operation 404, receiving a downlink reference signal from the base station; and operation 406, estimating a path loss value based on the downlink reference signal. This can solve problems in the prior art and other issues, calculate the transmission power of uplink transmissions to an uplink-only transmit / receive point (TRP), correctly measure the path loss of the uplink channel for an uplink-only TRP in a multi-TRP system, and / or improve the performance of uplink transmissions.

[0049] In some embodiments, the method further includes: receiving a set of power control parameters associated with at least one uplink channel from a base station. In some embodiments, the method further includes calculating the transmission power associated with the at least one uplink channel based on a first parameter, a path loss value, and the set of power control parameters. In some embodiments, the method further includes transmitting at least one uplink channel transmission to the base station based on the transmission power. In some embodiments, the at least one uplink channel transmission includes a Physical Uplink Shared Channel (PUSCH) transmission, a Physical Uplink Control Channel (PUCCH) transmission, or a Sound Reference Signal (SRS) transmission.

[0050] In some embodiments, calculating the transmission power associated with at least one uplink channel based on the first parameter, the path loss value, and the set of power control parameters further includes: calculating the downlink path loss value based on a reference signal index, calculating the uplink path loss value based on the downlink path loss value and the first parameter, and calculating the uplink transmission power using the uplink path loss value. In some embodiments, the reference signal index includes a channel state information reference signal (CSI-RS) resource index or a synchronization signal (SS) / physical broadcast channel (PBCH) index. In some embodiments, the downlink reference signal includes a CSI-RS resource or an SS / PBCH block. In some embodiments, for a CSI-RS resource, the UE is provided with one or more of the following parameters: a parameter for providing a CSI-RS power offset; a parameter for providing an effective CSI-RS power offset; and a parameter for providing an additional CSI-RS power offset. In some embodiments, for an SS / PBCH block, the UE is provided with one or more of the following parameters: a parameter for providing SS / PBCH block transmission power; a parameter for providing effective SS / PBCH block transmission power; and a parameter for providing an offset from the SS / PBCH block transmission power.

[0051] Figure 6 An example of a base station 500 according to an embodiment of the present disclosure is shown. The base station 500 is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the base station 500 using any suitably configured hardware and / or software. The base station 500 includes a transmitter 501 and a requester 502. The transmitter 501 is configured to send a first parameter associated with the path loss difference between the downlink and uplink to a user equipment (UE), and the transmitter 501 is also configured to send a downlink reference signal to the UE. The requester 502 is configured to request the UE to estimate the path loss value based on the downlink reference signal. This can solve problems in the prior art and other issues related to calculating the transmission power of uplink transmissions to an uplink-only transmit / receive point (TRP), correctly measuring the path loss of the uplink channel for an uplink-only TRP in a multi-TRP system, and / or improving the performance of uplink transmissions.

[0052] Figure 7An example of a base station 600 according to an embodiment of the present disclosure is shown. The base station 600 is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the base station 600 using any suitably configured hardware and / or software. The base station 600 may include a memory 601, a transceiver 602, and a processor 603 coupled to the memory 601 and the transceiver 602. The processor 603 may be configured to implement the functions, processes, and / or methods described herein. Layers of a wireless interface protocol may be implemented in the processor 603. The memory 601 is operatively coupled to the processor 603 and stores various information to operate the processor 603. The transceiver 602 is operatively coupled to the processor 603 and transmits and / or receives wireless signals. The processor 603 may include an application-specific integrated circuit (ASIC), another chipset, logic circuitry, and / or data processing devices. The memory 601 may include a read-only memory (ROM), random access memory (RAM), flash memory, a memory card, a storage medium, and / or another storage device. Transceiver 602 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., procedures, functions, etc.) that perform the functions described herein. These modules may be stored in memory 601 and executed by processor 603. Memory 601 may be implemented within processor 603 or external to processor 603. In the case where memory 601 is external to processor 603, memory 601 may be communicatively coupled to processor 603 by various means known in the art.

[0053] In some embodiments, transceiver 602 is configured to send a first parameter to user equipment (UE) associated with the path loss difference between the downlink and uplink links. Transceiver 602 is also configured to send a downlink reference signal to the UE, and processor 603 is configured to request the UE to estimate the path loss value based on the downlink reference signal. This addresses problems in the prior art and other issues related to calculating the transmission power of uplink transmissions to uplink-only transmit / receive points (TRPs), accurately measuring the path loss of the uplink channel for uplink-only TRPs in multi-TRP systems, and / or improving uplink transmission performance.

[0054] Figure 8This is an example of a wireless communication method 700 performed by a base station according to embodiments of the present disclosure. The wireless communication method 700 performed by a base station is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the wireless communication method 700 performed by a base station using any appropriately configured hardware and / or software. In some embodiments, the wireless communication method 700 performed by a base station includes: operation 702, sending to a user equipment (UE) a first parameter associated with the path loss difference between a downlink link and an uplink link; operation 704, sending a downlink reference signal to the UE; and operation 706, requesting the UE to estimate a path loss value based on the downlink reference signal. This can solve problems in the prior art and other issues related to calculating the transmission power of uplink transmissions to an uplink-only transmit / receive point (TRP), correctly measuring the path loss of the uplink channel for an uplink-only TRP in a multi-TRP system, and / or improving the performance of uplink transmissions.

[0055] In some embodiments, the method further includes: sending a set of power control parameters associated with at least one uplink channel to the UE. In some embodiments, the method further includes: requesting the UE to calculate the transmission power associated with at least one uplink channel based on a first parameter, a path loss value, and the set of power control parameters. In some embodiments, the method further includes: receiving at least one uplink channel transmission from the UE, wherein the at least one uplink channel transmission is based on transmission power. In some embodiments, the at least one uplink channel transmission includes a Physical Uplink Shared Channel (PUSCH) transmission, a Physical Uplink Control Channel (PUCCH) transmission, or a Sounding Reference Signal (SRS) transmission. In some embodiments, requesting the UE to calculate the transmission power associated with at least one uplink channel based on the first parameter, the path loss value, and the set of power control parameters further includes: requesting the UE to calculate a downlink path loss value based on a reference signal index, requesting the UE to calculate an uplink path loss value based on the downlink path loss value and the first parameter, and requesting the UE to calculate the uplink transmission power using the uplink path loss value.

[0056] In some embodiments, the reference signal index includes a Channel State Information Reference Signal (CSI-RS) resource index or a Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) index. In some embodiments, the downlink reference signal includes a CSI-RS resource or an SS / PBCH block. In some embodiments, for a CSI-RS resource, the base station configures one or more of the following parameters for the UE: a parameter for providing a CSI-RS power offset; a parameter for providing an effective CSI-RS power offset; and a parameter for providing an additional CSI-RS power offset. In some embodiments, for an SS / PBCH block, the base station configures one or more of the following parameters for the UE: a parameter for providing SS / PBCH block transmission power; a parameter for providing an effective SS / PBCH block transmission power; and a parameter for providing an offset from the SS / PBCH block transmission power.

[0057] Exemplary technical solutions:

[0058] In some embodiments, the UE can be configured with a first parameter to compensate for the path loss difference between the downlink and uplink. A downlink reference signal can also be provided to the UE, for example, by the UE using CSI-RS resources or SS / PBCH blocks that estimate a path loss value. For each uplink channel (e.g., PUSCH, PUCCH, or SRS), power control parameters can also be provided to the UE, including P0, alpha, and a closed-loop index for closed-loop power control. For each uplink transmission (e.g., PUSCH, PUCCH, or SRS), the UE can be requested to calculate the transmission power based on the configured first parameter for compensating for the path loss difference, the path loss estimated from the CSI-RS resources or SS / PBCH blocks configured to estimate the path loss, and the power control parameters.

[0059] In some embodiments, in the first exemplary method, the following parameters for uplink power control of PUSCH, PUCCH, or SRS may be provided to the UE: 1. First parameter This first parameter provides the offset between the uplink path loss and the downlink path loss. 2. Reference Signal Index The reference signal index can be a CSI-RS resource index or an SS / PBCH block index. Therefore, RS is configured as the path loss RS. 3. A set of uplink power control parameters: , And closed-loop indexes.

[0060] In some embodiments, using the configuration provided by the system, the UE can be requested to calculate the path loss used to calculate the uplink transmission power by performing the following operations:

[0061] Operation: The UE first uses a reference signal index. Calculate the downlink path loss in dB.

[0062] Operation: Then, the UE uses the estimated downlink path loss and the configured first parameter. Calculate uplink path loss For example, uplink path loss. =Estimated downlink path loss- For example, uplink path loss. =Estimated downlink path loss+ .

[0063] Operation: Then, the UE uses the calculated uplink path loss Calculate the uplink transmission power.

[0064] For example, UE uses Calculate the power of the PUSCH: .

[0065] For example, UE uses Calculate the power of the PUCCH: .

[0066] For example, UE uses Calculate the power of the SRS: .

[0067] Operation: Then, the UE can be requested to send PUSCH, PUCCH, or SRS with the calculated transmission power.

[0068] In some embodiments, in the second exemplary method, for the SS / PBCH block, the system may provide the UE with one or more of the following two parameters:

[0069] Provides the parameter ss-PBCH-BlockPower for SS / PBCH block transmission power (Note: This parameter is in the current specification).

[0070] A parameter is provided for the effective SS / PBCH block transmission power (e.g., called ss-PBCH-BlockPowerForUpPowerControl), which the UE can use to calculate the path loss for uplink power control.

[0071] A parameter is provided that represents the offset of the SS / PBCH block transmission power (e.g., called ss-PBCH-BlockPowerOffsetForUpPowerControl), which the UE can use to calculate the path loss for uplink power control.

[0072] In some embodiments, in the second exemplary method, for CSI-RS resources, the system may provide the UE with one or more of the following parameters:

[0073] Provides the parameter powerControlOffsetSS for CSI-RS power offset (Note: This parameter is in the current specification).

[0074] A parameter for the effective CSI-RS power offset (e.g., called powerControlOffsetSSforUL) is provided, which the UE can use to calculate the path loss for uplink power control.

[0075] A parameter powerControlAdditionalOffsetSSForUL is provided as an additional CSI-RS power offset, which the UE can use to calculate the path loss for uplink power control.

[0076] In some embodiments, the following parameters may also be provided to the UE for uplink power control of PUSCH, PUCCH, or SRS:

[0077] Reference signal index The reference signal index can be a CSI-RS resource index or an SS / PBCH block index. Therefore, RS is configured as the path loss RS.

[0078] A set of uplink power control parameters: , And closed-loop indexes.

[0079] Using the configuration provided by the system, the UE can be requested to calculate the path loss used to calculate uplink transmission power as follows. .

[0080] For example, if If it is an SS / PBCH block, the UE can be requested to estimate the path loss of uplink power control by following one or more of the following:

[0081] For example, if If it is an SS / PBCH block, then the UE can use the effective transmission power ss-PBCH-BlockPowerForUpPowerControl and Estimate the path loss for uplink power control.

[0082] For example, if If it is an SS / PBCH block, then the UE can use it. By assumption The transmission power is ss-PBCH-BlockPower – ss-PBCH-BlockPowerOffsetForUpPowerControl, which estimates the path loss for uplink power control.

[0083] For example, if If it is an SS / PBCH block, then the UE can use it. By assumption The transmission power is ss-PBCH-BlockPower + ss-PBCH-BlockPowerOffsetForUpPowerControl, which estimates the path loss for uplink power control.

[0084] For example, if If it is a CSI-RS resource, then the UE can be requested to estimate the path loss of uplink power control by following one or more of the following:

[0085] For example, if If it is a CSI-RS resource, then the UE can use it. By assumption The effective transmission power is TxP = ss - PBCH - BlockPower – powerControlOffsetSSforUL, which estimates the path loss for uplink power control. In another example, TxP = ss - PBCH - BlockPower + powerControlOffsetSSforUL.

[0086] For example, if If it is a CSI-RS resource, then the UE can use it. By assumption The effective transmission power is TxP = ss-PBCH-BlockPower + powerControlOffsetSS + powerControlAdditionalOffsetSSForUL, which estimates the path loss for uplink power control. In another example, TxP = ss-PBCH-BlockPower – powerControlOffsetSS – powerControlAdditionalOffsetSSForUL, or TxP = ss-PBCH-BlockPower + powerControlOffsetSS – powerControlAdditionalOffsetSSForUL, or TxP = ss-PBCH-BlockPower – powerControlOffsetSS + powerControlAdditionalOffsetSSForUL.

[0087] For example, if If it is a CSI-RS resource, then the UE can use it. By assumption The effective transmission power is calculated as TxP = ss-PBCH-BlockPower + ss-PBCH-BlockPowerOffsetForUpPowerControl + powerControlOffsetSSforUL, which estimates the path loss for uplink power control. In another example, TxP = ss-PBCH-BlockPower + ss-PBCH-BlockPowerOffsetForUpPowerControl – powerControlOffsetSSforUL. In yet another example, TxP = ss-PBCH-BlockPower - ss-PBCH-BlockPowerOffsetForUpPowerControl – powerControlOffsetSSforUL. In yet another example, TxP = ss-PBCH-BlockPower – ss-PBCH-BlockPowerOffsetForUpPowerControl + powerControlOffsetSSforUL.

[0088] Operation: Then, the UE uses the calculated Calculate the uplink transmission power.

[0089] For example, UE uses Calculate the power of the PUSCH: .

[0090] For example, UE uses Calculate the power of the PUCCH: .

[0091] For example, UE uses Calculate the power of the SRS: .

[0092] Operation: Then, the UE can be requested to send PUSCH, PUCCH, or SRS with the calculated transmission power.

[0093] In some embodiments, in the third exemplary method, the following parameters may be provided to the UE for uplink power control of PUSCH, PUCCH, or SRS:

[0094] First parameter The first parameter provides an additional offset for uplink power calculation.

[0095] Reference signal index The reference signal index can be a CSI-RS resource index or an SS / PBCH block index. Therefore, RS is configured as the path loss RS.

[0096] A set of uplink power control parameters: , And closed-loop indexes.

[0097] In some embodiments, using the configuration provided by the system, the UE can be requested to calculate the path loss used to calculate uplink transmission power by following the steps below:

[0098] Operation: The UE first uses a reference signal index. Calculate the downlink path loss PL in dB.

[0099] Operation: Then, the UE uses the calculated uplink path loss Calculate the uplink transmission power.

[0100] For example, UE uses Calculate the power of the PUSCH: .

[0101] For example, UE uses Calculate the power of the PUCCH: .

[0102] For example, UE uses Calculate the power of the SRS: .

[0103] In another example, the UE can calculate the uplink transmission power of PUSCH, PUCCH, and SRS as follows:

[0104] .

[0105] .

[0106] .

[0107] In another example, the UE can calculate the uplink transmission power of PUSCH, PUCCH, and SRS as follows:

[0108] .

[0109] .

[0110] .

[0111] In another example, the UE can calculate the uplink transmission power of PUSCH, PUCCH, and SRS as follows:

[0112] .

[0113] .

[0114] .

[0115] Operation: Then, the UE can be requested to send PUSCH, PUCCH, or SRS with the calculated transmission power.

[0116] In summary, in some embodiments, the proposed method enables the system to accurately measure the path loss of the uplink channel for UL TRP-only systems in multi-TRP systems, thereby improving uplink transmission performance.

[0117] Some embodiments offer the following commercial benefits: 1. Solving problems and other issues in the prior art. 2. Calculating the transmission power of uplink transmissions to an uplink-only transmit / receive point (TRP). 3. Accurately measuring the path loss of the uplink channel for the uplink-only TRP in a multi-TRP system. 4. Improving uplink transmission performance. 5. Providing good communication performance. 6. Providing high reliability. Some embodiments of this disclosure can be used in many applications. Some embodiments of this disclosure are applicable to: chipset suppliers; video system development suppliers; automobile manufacturers, including cars, trains, trucks, buses, bicycles, motorcycles, helmets, etc.; drones (unmanned aerial vehicles); smartphone manufacturers; communication equipment for public safety purposes; AR / VR / MR device manufacturers, such as for gaming, conferences / seminars, and educational purposes. Some embodiments of this disclosure are combinations of "technologies / processes" that can be adopted in video standards to create the final product. Some embodiments of this disclosure propose technical mechanisms. At least one proposed solution, method, system, and apparatus according to embodiments of this disclosure can be used with respect to current and / or new / future standards for communication systems such as UEs, base stations, and / or communication systems. Compatible products follow at least one proposed solution, method, system, and apparatus according to embodiments of this disclosure. The proposed solutions, methods, systems, and apparatus are widely used in UEs, base stations, and / or communication systems. With the implementation of at least one proposed solution, method, system, and apparatus according to embodiments of this disclosure, at least one modification to the methods and apparatus for wireless communication is considered for standardization.

[0118] Figure 9 This is an example of a computing device 1100 according to embodiments of the present disclosure. Any suitable computing device can be used to perform the operations described herein. For example, Figure 9 The diagram shows that Figures 1 to 1 can be implemented using any suitably configured hardware and / or software. Figure 8 Examples of computing devices 1100 in some embodiments are provided. In some embodiments, computing device 1100 may include processor 1112 communicatively coupled to memory 1114 and executing computer-executable program code and / or accessing information stored in memory 1114. Processor 1112 may include a microprocessor, application-specific integrated circuit (“ASIC”), state machine, or other processing device. Processor 1112 may include any of a plurality of processing devices, including one processing device. Such a processor may include a computer-readable medium storing a plurality of instructions, or may communicate with a computer-readable medium storing a plurality of instructions, which, when executed by processor 1112, cause the processor to perform the operations described herein.

[0119] Memory 1114 may include any suitable non-transitory computer-readable medium. Computer-readable media may include any electronic, optical, magnetic, or other storage device capable of providing computer-readable instructions or other program code to a processor. Non-limiting examples of computer-readable media include disks, memory chips, read-only memory (ROM), random access memory (RAM), application-specific integrated circuits (ASICs), configuration processors, optical storage devices, magnetic tape or other magnetic storage devices, or any other medium from which a computer processor can read instructions. The instructions may include processor-specific instructions generated by a compiler and / or interpreter from code written in any suitable computer programming language, including, for example, C, C++, C#, Visual Basic, Java, Python, Perl, JavaScript, and ActionScript.

[0120] The computing device 1100 may also include a bus 1116. The bus 1116 may communicatively couple one or more components of the computing device 1100. The computing device 1100 may also include multiple external or internal devices, such as input or output devices. For example, the computing device 1100 is shown having an input / output (I / O) interface 1118 that can receive input from one or more input devices 1120 or provide output to one or more output devices 1122. The one or more input devices 1120 and the one or more output devices 1122 may be communicatively coupled to the I / O interface 1118. The communicative coupling can be implemented by any suitable means (e.g., via a printed circuit board connection, via a cable connection, via wireless communication, etc.). Non-limiting examples of the input device 1120 include a touchscreen (e.g., one or more cameras for imaging a touch area or a pressure sensor for detecting pressure changes caused by a touch), a mouse, a keyboard, or any other device that can be used to generate input events in response to physical actions of a user of the computing device. Non-limiting examples of output device 1122 include liquid crystal display (LCD) screens, external monitors, speakers, or any other device that can be used to display or otherwise present output generated by a computing device.

[0121] The computing device 1100 can execute program code that configures the processor 1112 to perform the above-mentioned functions as described in Figures 1 to 12. Figure 8 Some embodiments describe one or more operations. The program code may reside in memory 1114 or any suitable computer-readable medium and may be executed by processor 1112 or any other suitable processor.

[0122] The computing device 1100 may also include at least one network interface device 1124. The network interface device 1124 may include any device or group of devices adapted to establish a wired or wireless data connection to one or more data networks 1128. Non-limiting examples of the network interface device 1124 include Ethernet adapters and / or modems, etc. The computing device 1100 may transmit messages as electronic or optical signals via the network interface device 1124.

[0123] Figure 10 This is a block diagram of an example communication system 1200 according to embodiments of the present disclosure. The embodiments described herein can be implemented in the communication system 1200 using any suitably configured hardware and / or software. Figure 10 A communication system 1200 is shown, which includes at least radio frequency (RF) circuitry 1210, baseband circuitry 1220, application circuitry 1230, memory / storage device 1240, display 1250, camera 1260, sensor 1270, and input / output (I / O) interface 1280 coupled to each other as shown.

[0124] Application circuitry 1230 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor may include any combination of general-purpose and special-purpose processors, such as graphics processors or application processors. The processor may be coupled to a memory / storage device and configured to execute instructions stored in the memory / storage device to enable various applications and / or operating systems to run on the system. Communication system 1200 may execute program code that configures application circuitry 1230 to perform the above-described instructions regarding Figures 1 to 1230. Figure 8 Some embodiments describe one or more operations. The program code may be located in application circuit 1230 or any suitable computer-readable medium and may be executed by application circuit 1230 or any other suitable processor.

[0125] The baseband circuit 1220 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor may include a baseband processor. The baseband circuitry can handle various radio control functions that enable communication with one or more radio networks via RF circuitry. These radio control functions may include, but are not limited to, signal modulation, encoding, decoding, and RF offset. In some embodiments, the baseband circuitry can provide communication compatible with one or more wireless technologies. For example, in some embodiments, the baseband circuitry can support communication with the evolved universal terrestrial radio access network (EUTRAN) and / or other wireless metropolitan area networks (WMAN), wireless local area networks (WLAN), and wireless personal area networks (WPAN). Embodiments where the baseband circuitry is configured to support wireless communication using more than one wireless protocol may be referred to as a multimode baseband circuitry.

[0126] In various embodiments, baseband circuit 1220 may include circuitry that operates on signals not strictly considered to be at baseband frequencies. For example, in some embodiments, the baseband circuitry may include circuitry that operates on signals having an intermediate frequency (IF), which is between the baseband frequency and the radio frequency (RF). RF circuit 1210 may use modulated electromagnetic radiation to enable communication with a wireless network via a non-solid-state medium. In various embodiments, RF circuitry may include switches, filters, amplifiers, etc., to facilitate communication with a wireless network. In various embodiments, RF circuitry 1210 may include circuitry that operates on signals not strictly considered to be at the radio frequency. For example, in some embodiments, RF circuitry may include circuitry that operates on signals having an intermediate frequency (IF), which is between the baseband frequency and the radio frequency.

[0127] In various embodiments, the above description regarding Figures 1 to 1... Figure 8The transmitter circuitry, control circuitry, or receiver circuitry described in some embodiments may be embodied, wholly or partially, in one or more of the RF circuitry, baseband circuitry, and / or application circuitry. As used herein, “circuit” may refer to, be part of, or include: an application-specific integrated circuit (ASIC), electronic circuitry, a (shared, dedicated, or grouped) processor and / or (shared, dedicated, or grouped) memory executing one or more software or firmware programs; combinational logic circuitry; and / or other suitable hardware components that provide said functionality. In some embodiments, electronic device circuitry may be implemented in one or more software or firmware modules, or the functionality associated with the circuitry may be implemented by one or more software or firmware modules. In some embodiments, some or all of the components of the baseband circuitry, application circuitry, and / or memory / storage device may be implemented together on a system on a chip (SOC). Memory / storage device 1240 may be used to load and store, for example, data and / or instructions for the system. One embodiment of the memory / storage device may include any combination of suitable volatile memory (e.g., dynamic random access memory (DRAM)) and / or non-volatile memory (e.g., flash memory).

[0128] In various embodiments, I / O interface 1280 may include one or more user interfaces designed to enable a user to interact with the system and / or peripheral component interfaces designed to enable peripheral components to interact with the system. User interfaces may include, but are not limited to, physical keyboards or keypads, touchpads, speakers, microphones, etc. Peripheral component interfaces may include, but are not limited to, non-volatile memory ports, universal serial bus (USB) ports, audio jacks, and power interfaces. In various embodiments, sensor 1270 may include one or more sensing devices to determine environmental conditions and / or location information related to the system. In some embodiments, sensors may include, but are not limited to, gyroscope sensors, accelerometers, proximity sensors, ambient light sensors, and positioning units. Positioning units may also be part of, or interact with, baseband and / or RF circuitry to communicate with components of a positioning network, such as a Global Positioning System (GPS) satellite.

[0129] In various embodiments, display 1250 may include displays such as liquid crystal displays and touchscreen displays. In various embodiments, communication system 1200 may be a mobile computing device, such as, but not limited to, laptops, tablets, netbooks, ultrabooks, smartphones, AR / VR glasses, etc. In various embodiments, the system may have more or fewer components and / or different architectures. Where appropriate, the methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium.

[0130] Those skilled in the art will understand that each of the various units, algorithms, and operations described and disclosed in the embodiments of this disclosure is implemented using electronic hardware or a combination of computer software and electronic hardware. Whether these functions operate in hardware or software depends on the application conditions and the design requirements of the technical solution. Those skilled in the art can implement the functions of each specific application in different ways, and such implementation should not exceed the scope of this disclosure. Those skilled in the art will understand that he / she can refer to the working process of the systems, devices, and units in the above embodiments, as the working processes of the above systems, devices, and units are substantially the same. For ease of description and simplification, these working processes will not be described in detail.

[0131] It should be understood that the systems, devices, and methods disclosed in the embodiments of this disclosure can be implemented in other ways. The above embodiments are merely exemplary. The division of units is based solely on logical function, while other divisions exist in the implementation. It is possible to combine or integrate multiple units or components into another system. It is also possible to omit or skip certain features. On the other hand, the mutual coupling, direct coupling, or communication coupling shown or discussed, whether implemented indirectly or communicatively through electrical, mechanical, or other means, operates through some ports, devices, or units.

[0132] The units used for explanation as separate components may or may not be physically separate. The units used for display may or may not be physical units, i.e., located in one place or distributed across multiple network units. Some or all units may be used depending on the purpose of each embodiment. Furthermore, the various functional units of multiple functional units in each of the multiple embodiments may be integrated into a processing unit in a physically independent manner, or integrated into a processing unit with two or more units.

[0133] If a software functional unit is implemented and used and sold as a product, it can be stored in a readable storage medium within a computer. Based on this understanding, the technical solutions proposed in this invention can be implemented substantially or partially in the form of a software product. Alternatively, a portion of a technical solution beneficial to conventional technology can be implemented in the form of a software product. The software product in the computer is stored in a storage medium and includes multiple commands for a computing device (e.g., a personal computer, server, or network device) to perform all or some of the multiple operations disclosed in the embodiments of this disclosure. The storage medium includes a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other types of media capable of storing program code.

[0134] While this disclosure has been described in conjunction with what are considered to be the most practical and preferred embodiments, it should be understood that this disclosure is not limited to the disclosed embodiments, but is intended to cover various arrangements made without departing from the broadest interpretation of the appended claims.

Claims

1. A method for wireless communication of a user equipment (UE), comprising: Receive a first parameter from the base station that is associated with the path loss difference between the downlink and uplink; Receive downlink reference signals from the base station; as well as The path loss value is estimated based on the downlink reference signal.

2. The method according to claim 1, further comprising: Receive a set of power control parameters associated with at least one uplink channel from the base station.

3. The method according to claim 2, further comprising: Based on the first parameter, the path loss value, and the set of power control parameters, the transmission power associated with the at least one uplink channel is calculated.

4. The method according to claim 3, further comprising: Based on the transmission power, at least one uplink channel transmission is sent to the base station.

5. The method according to claim 4, wherein, The at least one uplink channel transmission includes Physical Uplink Shared Channel (PUSCH) transmission, Physical Uplink Control Channel (PUCCH) transmission, or Sound Reference Signal (SRS) transmission.

6. The method according to claim 3, wherein, Calculating the transmission power associated with the at least one uplink channel based on the first parameter, the path loss value, and the set of power control parameters further includes: Calculate downlink path loss based on reference signal index; Calculate the uplink path loss value based on the downlink path loss value and the first parameter; and The uplink transmission power is calculated using the uplink path loss value.

7. The method according to claim 1, wherein, The reference signal index includes the Channel State Information Reference Signal (CSI-RS) resource index or the Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) index.

8. The method according to claim 1, wherein, The downlink reference signal includes CSI-RS resources or SS / PBCH blocks.

9. The method according to claim 8, wherein, For the CSI-RS resource, the UE is provided with one or more of the following parameters: Parameters used to provide CSI-RS power offset; Parameters used to provide effective CSI-RS power offset; This parameter is used to provide an additional CSI-RS power offset.

10. The method according to claim 8, wherein, For the SS / PBCH block, the UE is provided with one or more of the following parameters: Parameters used to provide SS / PBCH block transmission power; Parameters used to provide effective SS / PBCH block transmission power; Parameters used to provide the offset from the SS / PBCH block transmission power.

11. A method for wireless communication of a base station, comprising: Send a first parameter associated with the path loss difference between the downlink and uplink to the user equipment (UE); Send downlink reference signal to the UE; as well as The UE is requested to estimate the path loss value based on the downlink reference signal.

12. The method of claim 11, further comprising: Send a set of power control parameters associated with the at least one uplink channel to the UE.

13. The method of claim 12, further comprising: The UE is requested to calculate the transmission power associated with the at least one uplink channel based on the first parameter, the path loss value, and the set of power control parameters.

14. The method of claim 13, further comprising: Receive at least one uplink channel transmission from the UE, wherein the at least one uplink channel transmission is based on the transmission power.

15. The method according to claim 14, wherein, The at least one uplink channel transmission includes Physical Uplink Shared Channel (PUSCH) transmission, Physical Uplink Control Channel (PUCCH) transmission, or Sound Reference Signal (SRS) transmission.

16. The method according to claim 13, wherein, The request for the UE to calculate the transmission power associated with the at least one uplink channel based on the first parameter, the path loss value, and the set of power control parameters further includes: The UE is requested to calculate the downlink path loss value based on the reference signal index; The UE is requested to calculate the uplink path loss value based on the downlink path loss value and the first parameter; and The UE is requested to use the uplink path loss value to calculate the uplink transmission power.

17. The method according to claim 11, wherein, The reference signal index includes the Channel State Information Reference Signal (CSI-RS) resource index or the Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) index.

18. The method according to claim 11, wherein, The downlink reference signal includes CSI-RS resources or SS / PBCH blocks.

19. The method according to claim 18, wherein, For the CSI-RS resources, the base station is configured to configure one or more of the following parameters for the UE: Parameters used to provide CSI-RS power offset; Parameters used to provide effective CSI-RS power offset; This parameter is used to provide an additional CSI-RS power offset.

20. The method according to claim 18, wherein, For the SS / PBCH block, the base station is configured to configure one or more of the following parameters to the UE: Parameters used to provide SS / PBCH block transmission power; Parameters used to provide effective SS / PBCH block transmission power; Parameters used to provide the offset from the SS / PBCH block transmission power.

21. A user equipment (UE), comprising: A receiver configured to receive a first parameter associated with the path loss difference between a downlink link and an uplink link from a base station, wherein the receiver is further configured to receive a downlink reference signal from the base station; and An estimator configured to estimate path loss values ​​based on the downlink reference signal.

22. A base station, comprising: A transmitter configured to send to a user equipment (UE) a first parameter associated with the path loss difference between a downlink link and an uplink link, wherein the transmitter is further configured to send a downlink reference signal to the UE; and A requester configured to request the UE to estimate path loss values ​​based on the downlink reference signal.

23. A user equipment (UE), comprising: Memory; transceiver; as well as A processor coupled to the memory and the transceiver; The UE is configured to perform the method according to any one of claims 1 to 10.

24. A base station, comprising: Memory; transceiver; as well as A processor coupled to the memory and the transceiver; The base station is configured to perform the method according to any one of claims 11 to 20.

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