WO2026026126A1

WO2026026126A1 - Apparatus and method of wireless communication

Info

Publication number: WO2026026126A1
Application number: PCT/CN2025/095196
Authority: WO
Inventors: Li Guo
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2024-07-30
Filing date: 2025-05-15
Publication date: 2026-02-05
Anticipated expiration: 2027-01-30

Abstract

A method of wireless communication performed by a user equipment (UE) includes establishing a connection with a plurality of transmission/reception points (TRPs), receiving at least one transmission configuration from a base station, wherein the at least one transmission configuration comprises at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information, and performing a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.

Description

APPARATUS AND METHOD OF WIRELESS COMMUNICATION

TECHNICAL FIELD

The present disclosure relates to the field of communication systems, and more particularly, to apparatuses and methods of wireless communication.

BACKGROUND

New radio (NR) systems introduce multi-transmission/reception point (multi-TRP) technology to enhance communication performance. Existing multi-TRP transmission designs include multi-downlink control information (multi-DCI) and single-DCI modes, supporting various downlink and uplink transmission schemes such as spatial division multiplexing (SDM) , frequency division multiplexing (FDM) , and time division multiplexing (TDM) . However, these schemes rely on static configuration, requiring system reconfiguration when a user equipment (UE) switches between TRPs, leading to increased signaling overhead and operational delays, making it difficult to adapt to dynamic user environments.

Therefore, there is a need for apparatuses and methods of wireless communication.

SUMMARY

An object of the present disclosure is to propose apparatuses and methods of wireless communication, which can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

In a first aspect of the present disclosure, a method of wireless communication performed by a user equipment (UE) includes establishing a connection with a plurality of transmission/reception points (TRPs) ; receiving at least one transmission configuration from a base station, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and performing a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.

In a second aspect of the present disclosure, a UE includes a receiver configured to receive at least one transmission configuration from a base station, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and an executor configured to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.

In a third aspect of the present disclosure, a UE includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The UE is configured to perform the above method.

In a fourth aspect of the present disclosure, a method of wireless communication performed by a base station includes requesting a user equipment (UE) to establish a connection with a plurality of transmission/reception points (TRPs) ; transmitting, to the UE, at least one transmission configuration, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and requesting the UE to perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.

In a fifth aspect of the present disclosure, a base station includes a transmitter configured to transmitting, to a user equipment (UE) , at least one transmission configuration, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and an executor configured to request the UE to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.

In a sixth aspect of the present disclosure, a 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 method.

In a seventh aspect of the present disclosure, a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method.

In an eighth aspect of the present disclosure, a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method.

In a ninth aspect of the present disclosure, a computer readable storage medium, in which a computer program is stored, causes a computer to execute the above method.

In a tenth aspect of the present disclosure, a computer program product includes a computer program, and the computer program causes a computer to execute the above method.

In an eleventh aspect of the present disclosure, a computer program causes a computer to execute the above method.

BRIEF DESCRIPTION OF DRAWINGS

In order to illustrate the embodiments of the present disclosure or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present disclosure, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise.

FIG. 1 is a block diagram of one or more user equipments (UEs) and a base station of communication in a communication network system according to an embodiment of the present disclosure.

FIG. 2 is a block diagram of a UE according to an embodiment of the present disclosure.

FIG. 3 is a block diagram of a UE according to an embodiment of the present disclosure.

FIG. 4 is a flowchart illustrating a method of wireless communication performed by a UE according to an embodiment of the present disclosure.

FIG. 5 is a block diagram of a base station according to an embodiment of the present disclosure.

FIG. 6 is a block diagram of a base station according to an embodiment of the present disclosure.

FIG. 7 is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure.

FIG. 8 is a schematic diagram of an example of a unified mTRP transmission of one UE according to an embodiment of the present disclosure.

FIG. 9 is a block diagram of an example of a computing device according to an embodiment of the present disclosure.

FIG. 10 is a block diagram of a communication system according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF EMBODIMENTS

Embodiments of the present disclosure are described in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. Specifically, the terminologies in the embodiments of the present disclosure are merely for describing the purpose of the certain embodiment, but not to limit the disclosure.

The technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS) , a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a new radio (NR) system, an evolution system of a NR system, a LTE-based access to unlicensed spectrum (LTE-U) system, a NR-based access to unlicensed spectrum (NR-U) system, an universal mobile telecommunication system (UMTS) , a global interoperability for microwave access (WiMAX) communication system, wireless local area networks (WLAN) , wireless fidelity (Wi-Fi), a future 5th generation (5G) system (may also be called a new radio (NR) system) or other communication systems, etc.

Optionally, a base station mentioned in the embodiments of the present application can provide a communication coverage for a specific geographic area and can communicate with a user equipment (UE) located in the coverage area. Optionally, the base station may be a gNB, a base transceiver station (BTS) in the GSM or in the CDMA system, or may be a NodeB (NB) in the WCDMA system, or may be an evolutional Node B (eNB or eNodeB) in the LTE system, or a radio controller in a cloud radio access network (CRAN) .

A user equipment (UE) may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal may be a cellular radio telephone, a cordless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL) station, a personal digital assistant (PDA) , a handheld device with wireless communication functions, a computing device, other processing devices coupled with a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, a terminal device in a future evolved public land mobile network (PLMN) , etc.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where the licensed spectrum can also be considered an unshared spectrum.

The new radio (NR) system introduces and supports various multi-transmission/reception point (TRP) -based transmission methods. Generally, two types of multi-downlink control information (DCI) -based mTRP transmissions are supported: multi-DCI-based mTRP transmission and single-DCI-based mTRP transmission. The multi-DCI-based mTRP transmission is designed for deployment scenarios where the backhaul between TRPs is not ideal. The downlink control channels (PDCCHs) of different TRPs are divided into two groups, with each group corresponding to one TRP. The first TRP transmits the PDCCH in the first group to the UE, which can schedule the physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH) transmissions between the UE and the first TRP. Similarly, the second TRP transmits the PDCCH in the second group to the UE, allowing the UE to schedule the PDSCH and PUSCH transmissions between the UE and the second TRP.

In single-DCI-based mTRP transmission, various downlink and uplink transmission schemes are supported. For downlink transmission, the following schemes are available: spatial division multiplexing (SDM) -based scheme, frequency division multiplexing (FDM) -based scheme, and time division multiplexing (TDM) -based scheme. In the SDM-based scheme, a single PDSCH is transmitted from two TRPs, with each TRP transmitting some of the layers of that PDSCH. The purpose of the SDM-based scheme is to leverage spatial diversity gain by transmitting from different TRPs.

In the FDM-based scheme, one PDSCH is transmitted from two TRPs, with different frequency-domain parts of the PDSCH being transmitted by different TRPs. For instance, the upper part of the PDSCH in the frequency domain is transmitted by the first TRP, while the lower part is transmitted by the second TRP. The FDM-based scheme aims to exploit frequency-domain diversity gain.

In the TDM-based scheme, the same PDSCH is transmitted from different TRPs at different time slots. For example, one copy of the PDSCH is transmitted from the first TRP, while another copy is transmitted from the second TRP at a later time slot. The TDM-based scheme is designed to take advantage of repetition transmission gain in the time domain.

For uplink transmission, both the SDM-based scheme and the SFN-based scheme are supported. In the SDM-based scheme, the UE transmits different parts of a single PUSCH to different TRPs. For example, the first few layers are transmitted to the first TRP, while the remaining layers are transmitted to the second TRP. Additionally, a multi-TRP-based PDCCH repetition scheme is also supported.

The design of the current multi-TRP transmission scheme is based on a static configuration. When the UE moves and switches its connection between TRPs, the system must change the mTRP transmission scheme. If the current design is implemented, the system would need to reconfigure the entire system, leading to significant signaling overhead and increased system operation latency.

Some embodiments of the present disclosure provide solutions for the design of a unified multi-TRP system transmission. The proposed methods offer a unified approach for multi-TRP transmission and inter-TRP mobility, featuring flexible and low-overhead signaling.

FIG. 1 illustrates that, in some embodiments, one or more user equipments (UEs) 10 and a base station (e.g., next generation NodeB (gNB) or eNB) 20 of communication in a communication network system 30 (e.g., an NR system) according to an embodiment of the present disclosure are provided. The communication network system 30 includes the one or more UEs 10 and the base station 20. The one or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23. The processor 11 or 21 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives a radio signal.

The processor 11 or 21 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and/or data processing device. The memory 12 or 22 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and/or other storage device. The transceiver 13 or 23 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21. The memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.

In some embodiments, the transceiver 13 is configured to receive at least one transmission configuration from the base station 20, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information, and the processor 11 is configured to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration. This can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

In some embodiments, the transceiver 23 is configured to transmit, to the UE 10, at least one transmission configuration, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information, and the processor 21 is configured to request the UE 10 to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration. This can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

FIG. 2 illustrates an example of a UE 200 according to an embodiment of the present application. The UE 200 is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the UE 200 using any suitably configured hardware and/or software. The UE 200 includes an executor 201 and a receiver 202. The receiver 202 is configured to receive at least one transmission configuration from a base station, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information. The executor 201 is configured to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration. This can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

FIG. 3 illustrates an example of a UE 300 according to an embodiment of the present disclosure. The UE 300 is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into 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 proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 303. The memory 301 is operatively coupled with the processor 303 and stores a variety of information to operate the processor 303. The transceiver 302 is operatively coupled with the processor 303, and the transceiver 302 transmits and/or receives a radio signal. The processor 303 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and/or data processing device. The memory 301 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and/or other storage device. The transceiver 302 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 301 and executed by the processor 303. The memory 301 can be implemented within the processor 303 or external to the processor 303 in which case those can be communicatively coupled to the processor 303 via various means as is known in the art.

In some embodiments, the transceiver 302 is configured to receive at least one transmission configuration from a base station, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information, and the processor 303 is configured to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration. This can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

FIG. 4 is an example of a method 400 of wireless communication performed by a UE according to an embodiment of the present disclosure. The method 400 of wireless communication performed by the UE is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the method 400 of wireless communication performed by the UE using any suitably configured hardware and/or software. In some embodiments, the method 400 of wireless communication performed by the UE includes: an operation 402, establishing a connection with a plurality of transmission/reception points (TRPs) ; an operation 404, receiving at least one transmission configuration from a base station, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and an operation 406, performing a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration. This can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

In some embodiments, the at least one transmission configuration is received by the UE through a radio resource control (RRC) signaling, a medium access control-control element (MAC-CE) message, or a downlink control information (DCI) signaling. In some embodiments, the UE is configured to apply the at least one transmission configuration starting from one time point after receiving the at least one transmission configuration. In some embodiments, establishing the connection with the plurality of TRPs includes initially establishing a connection between the UE and a first TRP, wherein the at least one downlink transmission scheme between the UE and the first TRP is a single-TRP downlink transmission, and/or the at least one uplink transmission scheme between the UE and the first TRP is a single-TRP physical uplink shared channel (PUSCH) transmission. In some embodiments, establishing the connection with the plurality of TRPs further includes determining, based on a downlink reference signal (RS) measurement and/or an uplink RS measurement, that the UE has moved to a location wherein the UE is connected to a second TRP and a third TRP, wherein the UE is configured to receive separate and simultaneous downlink transmissions from the second TRP and the third TRP, or the UE is configured to receive a single downlink transmission from the second TRP and the third TRP, where the second TRP and the third TRP transmit different layers of a same physical downlink shared channel (PDSCH) or different parts of the PDSCH in a frequency domain.

In some embodiments, establishing the connection with the plurality of TRPs further includes determining, based on a further downlink RS measurement and/or a further uplink RS measurement, that the UE has moved to a location where the UE is connected to a fourth TRP, a fifth TRP, and a sixth TRP; and performing the downlink and/or uplink communication with the fourth TRP, the fifth TRP, and the sixth TRP using the at least one transmission configuration. In some embodiments, the at least one downlink transmission scheme is for PDSCH transmission, and the UE is configured to receive a plurality of PDSCHs from the plurality of TRPs. In some embodiments, the PDSCH transmission includes a plurality of QCL configurations, each associated with: different subsets of PDSCH layers, different frequency-domain parts of the PDSCH, or different time-domain parts of the PDSCH. In some embodiments, the at least one uplink transmission scheme is for PUSCH transmission, and the UE is configured to transmit a plurality of PUSCHs to the plurality of TRPs. In some embodiments, the PUSCH transmission includes a plurality of uplink transmission configurations, each associated with a subset of PUSCH layers, and the UE is configured to transmit multiple copies of the same PUSCH using different uplink transmission configurations at the same time. In some embodiments, the at least one downlink transmission scheme is for downlink control channel (PDCCH) transmission, the at least one uplink transmission scheme is for uplink control channel (PUCCH) transmission, and/or the at least one transmission configuration is a configuration of channel state information-reference signal (CSI-RS) transmission associated with a transmission scheme configuration. In some embodiments, the at least one transmission configuration is associated with a tag, a system beam, or a subset of beams.

FIG. 5 illustrates an example of base station 500 according to an embodiment of the present application. The base station 500 is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the base station 500 using any suitably configured hardware and/or software. The base station 500 includes an executor 501 and a transmitter 502. In some embodiments, the transmitter 502 is configured to transmit, to a UE, at least one transmission configuration, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information, and the executor 501 is configured to request the UE to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration. This can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

FIG. 6 illustrates an example of a base station 600 according to an embodiment of the present disclosure. The base station 600 is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into 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 proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 603. The memory 601 is operatively coupled with the processor 603 and stores a variety of information to operate the processor 603. The transceiver 602 is operatively coupled with the processor 603, and the transceiver 602 transmits and/or receives a radio signal. The processor 603 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and/or data processing device. The memory 601 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and/or other storage device. The transceiver 602 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 601 and executed by the processor 603. The memory 601 can be implemented within the processor 603 or external to the processor 603 in which case those can be communicatively coupled to the processor 603 via various means as is known in the art.

In some embodiments, the transceiver 602 is configured to transmit, to a UE, at least one transmission configuration, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information, and the processor 603 is configured to request the UE to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration. This can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

FIG. 7 is an example of a method 700 of wireless communication performed by a base station according to an embodiment of the present disclosure. The method 700 of wireless communication performed by the base station is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the method 700 of wireless communication performed by the base station using any suitably configured hardware and/or software. In some embodiments, the method 700 of wireless communication performed by the base station includes: an operation 702, requesting a user equipment (UE) to establish a connection with a plurality of transmission/reception points (TRPs) ; an operation 704, transmitting, to the UE, at least one transmission configuration, wherein the at least one transmission configuration includes at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and an operation 706, requesting the UE to perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration. This can solve issues in the prior art and other issues, and/or provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling.

In some embodiments, the at least one transmission configuration is transmitted by the base station through a radio resource control (RRC) signaling, a medium access control-control element (MAC-CE) message, or a downlink control information (DCI) signaling. In some embodiments, the base station requests the UE to apply the at least one transmission configuration starting from one time point after the UE receiving the at least one transmission configuration. In some embodiments, requesting the UE to establish the connection with the plurality of TRPs includes requesting the UE to initially establish a connection between the UE and a first TRP, wherein the at least one downlink transmission scheme between the UE and the first TRP is a single-TRP downlink transmission, and/or the at least one uplink transmission scheme between the UE and the first TRP is a single-TRP physical uplink shared channel (PUSCH) transmission. In some embodiments, requesting the UE to establish the connection with the plurality of TRPs further includes determining, based on a downlink reference signal (RS) measurement and/or an uplink RS measurement, that the UE has moved to a location wherein the UE is connected to a second TRP and a third TRP, wherein the base station requests the UE to receive separate and simultaneous downlink transmissions from the second TRP and the third TRP, or the base station request the UE to receive a single downlink transmission from the second TRP and the third TRP, where the second TRP and the third TRP transmit different layers of a same physical downlink shared channel (PDSCH) or different parts of the PDSCH in a frequency domain.

In some embodiments, requesting the UE to establish the connection with the plurality of TRPs further includes determining, based on a further downlink RS measurement and/or a further uplink RS measurement, that the UE has moved to a location where the UE is connected to a fourth TRP, a fifth TRP, and a sixth TRP; and requesting the UE to perform the downlink and/or uplink communication with the fourth TRP, the fifth TRP, and the sixth TRP using the at least one transmission configuration. In some embodiments, the at least one downlink transmission scheme is for PDSCH transmission, and the base station requests the UE to receive a plurality of PDSCHs from the plurality of TRPs. In some embodiments, the PDSCH transmission includes a plurality of QCL configurations, each associated with: different subsets of PDSCH layers, different frequency-domain parts of the PDSCH, or different time-domain parts of the PDSCH. In some embodiments, the at least one uplink transmission scheme is for PUSCH transmission, and the base station requests the UE to transmit a plurality of PUSCHs to the plurality of TRPs. In some embodiments, the PUSCH transmission includes a plurality of uplink transmission configurations, each associated with a subset of PUSCH layers, and the base statin requests the UE to transmit multiple copies of the same PUSCH using different uplink transmission configurations at the same time. In some embodiments, the at least one downlink transmission scheme is for downlink control channel (PDCCH) transmission, the at least one uplink transmission scheme is for uplink control channel (PUCCH) transmission, and/or the at least one transmission configuration is a configuration of channel state information-reference signal (CSI-RS) transmission associated with a transmission scheme configuration. In some embodiments, the at least one transmission configuration is associated with a tag, a system beam, or a subset of beams.

Exemplary Technical Solutions:

In one embodiment, a UE can be configured to operate in a system where multiple TRPs are deployed, with the number of deployed TRPs being N > 1. The UE may be connected to one of these TRPs for downlink and/or uplink communication. Alternatively, the UE may be connected to multiple TRPs simultaneously for downlink and/or uplink communication.

The UE can initially be configured with multiple transmission configurations. Each of these transmission configurations may include one or more of the following items: the downlink transmission scheme (s) , the uplink transmission scheme (s) , the quasi co-location (QCL) information for each downlink transmission, and the uplink power control parameters for uplink transmission. Additionally, each configuration may specify the uplink transmission spatial filter information.

The system can indicate one of the transmission configurations to the UE using various signaling methods, such as radio resource control (RRC) signaling, medium access control-control element (MAC-CE) messages, or downlink control information (DCI) signaling. Upon receiving this indication from the system, the UE may be instructed to apply the specified transmission configuration starting at a designated time following the receipt of the indication.

FIG. 8 illustrates an example of unified multi-TRP (mTRP) transmission for a UE, demonstrating the methods disclosed herein. As illustrated in FIG. 8, a user equipment (UE-A) is initially connected to TRP #1. In this state, the downlink transmission scheme between UE-Aand TRP #1 is configured as a single-TRP transmission, while the uplink transmission scheme is configured as a single-TRP physical uplink shared channel (PUSCH) transmission.

After a period, UE-Amay move to a second location. Based on measurements of downlink reference signals (RS) and/or uplink RS, the system can determine that UE-Ashould establish connections with TRP #2 and TRP #3. Subsequently, UE-Aswitches its connection to TRP #2 and TRP #3. In this configuration, the downlink transmission between the TRPs and UE-Acan occur in one of two ways. In one scenario, UE-Acan receive separate and simultaneous downlink transmissions (e.g., physical downlink shared channel (PDSCH) ) from TRP #2 and TRP #3. Alternatively, UE-Amay receive a single downlink transmission (such as one PDSCH) from both TRPs, where TRP #2 and TRP #3 transmit different layers of the same PDSCH or transmit different parts of the PDSCH in the frequency domain.

UE-Amay then move to a third location. Based on further measurements of downlink RS and/or uplink RS, the system can determine that UE-Ashould connect to TRP #4, TRP #5, and TRP #6. In this scenario, the system can also indicate the specific transmission schemes for both downlink and uplink communication between UE-Aand TRPs #4, #5, and #6.

In some examples, a UE can be provided with a list of M transmission scheme configurations for downlink and/or uplink communication. Each of these transmission scheme configurations may include one or more of the following information items.

First item, a downlink transmission scheme for the physical downlink shared channel (PDSCH) can be specified. For instance, the downlink transmission may involve N > 1 transmission and reception points (TRPs) transmitting separate PDSCHs simultaneously to the UE, allowing the UE to receive multiple PDSCHs from different TRPs at the same time. Alternatively, the downlink transmission can involve PDSCH transmission with multiple quasi co-location (QCL) configurations. This may include different subsets of PDSCH layers being associated with different QCL configurations, different frequency-domain parts of the PDSCH being linked to separate QCL configurations, or different time-domain parts of the PDSCH transmission being assigned distinct QCL configurations.

Second item, an uplink transmission scheme for the physical uplink shared channel (PUSCH) can be defined. For example, the UE may be configured to transmit multiple PUSCHs (such as two) simultaneously to multiple TRPs. Alternatively, the PUSCH transmission scheme may involve multiple uplink transmission configurations, where each part of the PUSCH layers is associated with a specific configuration. Another possibility is that the UE can transmit multiple copies of the same PUSCH using different uplink transmission configurations at the same time.

Third item, a transmission scheme for the downlink control channel, specifically the physical downlink control channel (PDCCH) , can be defined. This may include a PDCCH repetition transmission scheme.

Fourth item, a transmission scheme for the uplink control channel, specifically the physical uplink control channel (PUCCH) , can also be specified.

Fifth item, a configuration of channel state information-reference signal (CSI-RS) transmission can be associated with this particular transmission scheme configuration. This allows the UE to receive CSI-RS according to the specified configuration, enhancing channel state reporting and system performance.

Each transmission configuration can be associated with a unique tag, referred to as a transmission configuration tag. This tag serves as an identifier for the configuration, enabling the system to efficiently manage and apply different transmission configurations. Additionally, each configuration can be associated with a specific system beam or a subset of beams. This association allows the system to define which beams are used for transmission and reception under the specified configuration, providing flexibility in beam management and optimizing communication performance.

In one example, the system can indicate one of the transmission configurations to the user equipment (UE) through various signaling methods, such as RRC signaling, MAC CE signaling, or DCI signaling. When the UE receives the indication, it is instructed to apply the specified configuration for downlink transmission starting from a designated time point following the receipt of the indication. In another example, the system can specifically use a MAC CE message to indicate one of the transmission configurations to the UE, allowing efficient and flexible configuration management.

In summary, the above methods and examples provide a unified solution for multi-TRP transmission and inter-TRP mobility in a wireless communication system, ensuring efficient and flexible communication for UE. The UE can operate in a system with multiple TRPs (N > 1) , supporting various transmission configurations for both downlink and uplink communication. These configurations can include schemes for PDSCH, PUSCH, PDCCH, PUCCH, and CSI-RS transmission. The system can dynamically indicate one of these configurations to the UE using signaling methods such as RRC signaling, MAC-CE messages, or DCI signaling, allowing the UE to adapt its transmission and reception parameters in real time. Configurations can also be associated with unique transmission configuration tags, enabling efficient management and application of different configurations. Additionally, each configuration can be linked to specific system beams or subsets of beams, optimizing beam management for enhanced communication performance. The proposed solution effectively reduces signaling overhead and operational latency compared to static configuration methods, making it adaptable to dynamic user environments and improving overall system efficiency.

Commercial interests for some embodiments are as follows. 1. Solve issues in the prior art and other issues. 2. Provide a unified solution for multi-TRP transmission and inter-TRP mobility with flexible and low-overhead signaling. 3. Boost a system throughput. 4. Provide a good communication performance. 5. Provide high reliability. Some embodiments of the present disclosure can be used in many applications. Some embodiments of the present disclosure are used by chipset vendors, video system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles) , smartphone makers, communication devices for public safety use, AR/VR/MR device maker for example gaming, conference/seminar, education purposes. Some embodiments of the present disclosure are a combination of “techniques/processes” that can be adopted in video standards to create an end product. Some embodiments of the present disclosure propose technical mechanisms. The at least one proposed solution, method, system, and apparatus of some embodiments of the present disclosure may be used for current and/or new/future standards regarding communication systems such as a UE, a base station, and/or a communication system. Compatible products follow at least one proposed solution, method, system, and apparatus of some embodiments of the present disclosure. The proposed solution, method, system, and apparatus are widely used in a UE, a base station, and/or a communication system. With the implementation of the at least one proposed solution, method, system, and apparatus of some embodiments of the present disclosure, at least one modification to methods and apparatus of wireless communication are considered for standardizing.

FIG. 9 is an example of a computing device 1100 according to an embodiment of the present disclosure. Any suitable computing device can be used for performing the operations described herein. For example, FIG. 9 illustrates an example of the computing device 1100 that can implement some embodiments of FIG. 1 to FIG. 8 using any suitably configured hardware and/or software. In some embodiments, the computing device 1100 can include a processor 1112 that is communicatively coupled to a memory 1114 and that executes computer-executable program code and/or accesses information stored in the memory 1114. The processor 1112 may include a microprocessor, an application-specific integrated circuit ( “ASIC” ) , a state machine, or other processing device. The processor 1112 can include any of a number of processing devices, including one. Such a processor can include or may be in communication with a computer-readable medium storing instructions that, when executed by the processor 1112, cause the processor to perform the operations described herein.

The memory 1114 can include any suitable non-transitory computer-readable medium. The computer-readable medium can include any electronic, optical, magnetic, or other storage device capable of providing a processor with computer-readable instructions or other program code. Non-limiting examples of a computer-readable medium include a magnetic disk, a memory chip, a read-only memory (ROM) , a random access memory (RAM) , an application specific integrated circuit (ASIC) , a configured processor, optical storage, magnetic tape or other magnetic storage, 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 an interpreter from code written in any suitable computer-programming language, including, for example, C, C++, C#, visual basic, java, python, perl, javascript, and actionscript.

The computing device 1100 can also include a bus 1116. The bus 1116 can communicatively couple one or more components of the computing device 1100. The computing device 1100 can also include a number of external or internal devices such as input or output devices. For example, the computing device 1100 is illustrated with 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 one or more output devices 1122 can be communicatively coupled to the I/O interface 1118. The communicative coupling can be implemented via any suitable manner (e.g., a connection via a printed circuit board, connection via a cable, communication via wireless transmissions, etc. ) . Non-limiting examples of input devices 1120 include a touch screen (e g., one or more cameras for imaging a touch area or pressure sensors 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 by a user of a computing device. Non-limiting examples of output devices 1122 include a liquid crystal display (LCD) screen, an external monitor, a speaker, or any other device that can be used to display or otherwise present outputs generated by a computing device.

The computing device 1100 can execute program code that configures the processor 1112 to perform one or more of the operations described above with respect to some embodiments of FIG. 1 to FIG. 8. The program code may be resident in the memory 1114 or any suitable computer-readable medium and may be executed by the processor 1112 or any other suitable processor.

The computing device 1100 can also include at least one network interface device 1124. The network interface device 1124 can include any device or group of devices suitable for establishing a wired or wireless data connection to one or more data networks 1128. Non limiting examples of the network interface device 1124 include an Ethernet network adapter, a modem, and/or the like. The computing device 1100 can transmit messages as electronic or optical signals via the network interface device 1124.

FIG. 10 is a block diagram of an example of a communication system 1200 according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the communication system 1200 using any suitably configured hardware and/or software. FIG. 10 illustrates the communication system 1200 including a radio frequency (RF) circuitry 1210, a baseband circuitry 1220, an application circuitry 1230, a memory/storage 1240, a display 1250, a camera 1260, a sensor 1270, and an input/output (I/O) interface 1280, coupled with each other at least as illustrated.

The application circuitry 1230 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors. The processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system. The communication system 1200 can execute program code that configures the application circuitry 1230 to perform one or more of the operations described above with respect to some embodiments of FIG. 1 to FIG. 8. The program code may be resident in the application circuitry 1230 or any suitable computer-readable medium and may be executed by the application circuitry 1230 or any other suitable processor.

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

In various embodiments, the baseband circuitry 1220 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency. For example, in some embodiments, baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency. The RF circuitry 1210 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. In various embodiments, the RF circuitry 1210 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency. For example, in some embodiments, RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.

In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to some embodiments of FIG. 1 to FIG. 8 may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry. As used herein, “circuitry” may refer to, be part of, or include an application specific integrated circuit (ASIC) , an electronic circuit, a processor (shared, dedicated, or group) , and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/storage may be implemented together on a system on a chip (SOC) . The memory/storage 1240 may be used to load and store data and/or instructions, for example, for system. The memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM) ) , and/or non-volatile memory, such as flash memory.

In various embodiments, the I/O interface 1280 may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system. User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface. In various embodiments, the sensor 1270 may include one or more sensing devices to determine environmental conditions and/or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.

In various embodiments, the display 1250 may include a display, such as a liquid crystal display and a touch screen display. In various embodiments, the communication system 1200 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR/VR glasses, etc. In various embodiments, system may have more or less components, and/or different architectures. Where appropriate, 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.

A person having ordinary skill in the art understands that each of the units, algorithm, and operations described and disclosed in the embodiments of the present disclosure are realized using electronic hardware or combinations of software for computers and electronic hardware. Whether the functions run in hardware or software depends on the condition of application and design requirement for a technical plan. A person having ordinary skill in the art can use different ways to realize the function for each specific application while such realizations should not go beyond the scope of the present disclosure. It is understood by a person having ordinary skill in the art that he/she can refer to the working processes of the system, device, and unit in the above-mentioned embodiment since the working processes of the above-mentioned system, device, and unit are basically the same. For easy description and simplicity, these working processes will not be detailed.

It is understood that the disclosed system, device, and method in the embodiments of the present disclosure can be realized with other ways. The above-mentioned embodiments are exemplary only. The division of the units is merely based on logical functions while other divisions exist in realization. It is possible that a plurality of units or components are combined or integrated in another system. It is also possible that some characteristics are omitted or skipped. On the other hand, the displayed or discussed mutual coupling, direct coupling, or communicative coupling operate through some ports, devices, or units whether indirectly or communicatively by ways of electrical, mechanical, or other kinds of forms.

The units as separating components for explanation are or are not physically separated. The units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments. Moreover, each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.

If the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer. Based on this understanding, the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product. Or, one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product. The software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the operations disclosed by the embodiments of the present disclosure. The storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM) , a random access memory (RAM) , a floppy disk, or other kinds of media capable of storing program codes.

While the present disclosure has been described in connection with what is considered the most practical and preferred embodiments, it is understood that the present disclosure is not limited to the disclosed embodiments but is intended to cover various arrangements made without departing from the scope of the broadest interpretation of the appended claims.

Claims

A method of wireless communication performed by a user equipment (UE) , comprising:

establishing a connection with a plurality of transmission/reception points (TRPs) ;

receiving at least one transmission configuration from a base station, wherein the at least one transmission configuration comprises at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and

performing a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.
The method of claim 1, wherein the at least one transmission configuration is received by the UE through a radio resource control (RRC) signaling, a medium access control-control element (MAC-CE) message, or a downlink control information (DCI) signaling.
The method of claim 1 or 2, wherein the UE is configured to apply the at least one transmission configuration starting from one time point after receiving the at least one transmission configuration.
The method of any one of claims 1 to 3, wherein establishing the connection with the plurality of TRPs comprises:

initially establishing a connection between the UE and a first TRP, wherein the at least one downlink transmission scheme between the UE and the first TRP is a single-TRP downlink transmission, and/or the at least one uplink transmission scheme between the UE and the first TRP is a single-TRP physical uplink shared channel (PUSCH) transmission.
The method of claim 4, wherein establishing the connection with the plurality of TRPs further comprises:

determining, based on a downlink reference signal (RS) measurement and/or an uplink RS measurement, that the UE has moved to a location wherein the UE is connected to a second TRP and a third TRP, wherein the UE is configured to receive separate and simultaneous downlink transmissions from the second TRP and the third TRP, or the UE is configured to receive a single downlink transmission from the second TRP and the third TRP, where the second TRP and the third TRP transmit different layers of a same physical downlink shared channel (PDSCH) or different parts of the PDSCH in a frequency domain.
The method of claim 5, wherein establishing the connection with the plurality of TRPs further comprises:

determining, based on a further downlink RS measurement and/or a further uplink RS measurement, that the UE has moved to a location where the UE is connected to a fourth TRP, a fifth TRP, and a sixth TRP; and

performing the downlink and/or uplink communication with the fourth TRP, the fifth TRP, and the sixth TRP using the at least one transmission configuration.
The method of any one of claims 1 to 6, wherein the at least one downlink transmission scheme is for PDSCH transmission, and the UE is configured to receive a plurality of PDSCHs from the plurality of TRPs.
The method of claim 7, wherein the PDSCH transmission comprises a plurality of QCL configurations, each associated with: different subsets of PDSCH layers, different frequency-domain parts of the PDSCH, or different time-domain parts of the PDSCH.
The method of any one of claims 1 to 8, wherein the at least one uplink transmission scheme is for PUSCH transmission, and the UE is configured to transmit a plurality of PUSCHs to the plurality of TRPs.
The method of claim 9, wherein the PUSCH transmission comprises a plurality of uplink transmission configurations, each associated with a subset of PUSCH layers, and the UE is configured to transmit multiple copies of the same PUSCH using different uplink transmission configurations at the same time.
The method of any one of claims 1 to 10, wherein the at least one downlink transmission scheme is for downlink control channel (PDCCH) transmission, the at least one uplink transmission scheme is for uplink control channel (PUCCH) transmission, and/or the at least one transmission configuration is a configuration of channel state information-reference signal (CSI-RS) transmission associated with a transmission scheme configuration.
The method of any one of claims 1 to 11, wherein the at least one transmission configuration is associated with a tag, a system beam, or a subset of beams.
A method of wireless communication performed by a base station, comprising:

requesting a user equipment (UE) to establish a connection with a plurality of transmission/reception points (TRPs) ; transmitting, to the UE, at least one transmission configuration, wherein the at least one transmission configuration comprises at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and

requesting the UE to perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.
The method of claim 13, wherein the at least one transmission configuration is transmitted by the base station through a radio resource control (RRC) signaling, a medium access control-control element (MAC-CE) message, or a downlink control information (DCI) signaling.
The method of claim 13 or 14, wherein the base station requests the UE to apply the at least one transmission configuration starting from one time point after the UE receiving the at least one transmission configuration.
The method of any one of claims 13 to 15, wherein requesting the UE to establish the connection with the plurality of TRPs comprises:

requesting the UE to initially establish a connection between the UE and a first TRP, wherein the at least one downlink transmission scheme between the UE and the first TRP is a single-TRP downlink transmission, and/or the at least one uplink transmission scheme between the UE and the first TRP is a single-TRP physical uplink shared channel (PUSCH) transmission.
The method of claim 16, wherein requesting the UE to establish the connection with the plurality of TRPs further comprises:

determining, based on a downlink reference signal (RS) measurement and/or an uplink RS measurement, that the UE has moved to a location wherein the UE is connected to a second TRP and a third TRP, wherein the base station requests the UE to receive separate and simultaneous downlink transmissions from the second TRP and the third TRP, or the base station request the UE to receive a single downlink transmission from the second TRP and the third TRP, where the second TRP and the third TRP transmit different layers of a same physical downlink shared channel (PDSCH) or different parts of the PDSCH in a frequency domain.
The method of claim 17, wherein requesting the UE to establish the connection with the plurality of TRPs further comprises:

determining, based on a further downlink RS measurement and/or a further uplink RS measurement, that the UE has moved to a location where the UE is connected to a fourth TRP, a fifth TRP, and a sixth TRP; and

requesting the UE to perform the downlink and/or uplink communication with the fourth TRP, the fifth TRP, and the sixth TRP using the at least one transmission configuration.
The method of any one of claims 13 to 18, wherein the at least one downlink transmission scheme is for PDSCH transmission, and the base station requests the UE to receive a plurality of PDSCHs from the plurality of TRPs.
The method of claim 19, wherein the PDSCH transmission comprises a plurality of QCL configurations, each associated with: different subsets of PDSCH layers, different frequency-domain parts of the PDSCH, or different time-domain parts of the PDSCH.
The method of any one of claims 13 to 20, wherein the at least one uplink transmission scheme is for PUSCH transmission, and the base station requests the UE to transmit a plurality of PUSCHs to the plurality of TRPs.
The method of claim 21, wherein the PUSCH transmission comprises a plurality of uplink transmission configurations, each associated with a subset of PUSCH layers, and the base statin requests the UE to transmit multiple copies of the same PUSCH using different uplink transmission configurations at the same time.
The method of any one of claims 13 to 22, wherein the at least one downlink transmission scheme is for downlink control channel (PDCCH) transmission, the at least one uplink transmission scheme is for uplink control channel (PUCCH) transmission, and/or the at least one transmission configuration is a configuration of channel state information-reference signal (CSI-RS) transmission associated with a transmission scheme configuration.
The method of any one of claims 13 to 23, wherein the at least one transmission configuration is associated with a tag, a system beam, or a subset of beams.
A user equipment (UE) , comprising:

a receiver configured to receive at least one transmission configuration from a base station, wherein the at least one transmission configuration comprises at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and

an executor configured to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.
A base station, comprising:

a transmitter configured to transmitting, to a user equipment (UE) , at least one transmission configuration, wherein the at least one transmission configuration comprises at least one downlink transmission scheme, at least one uplink transmission scheme, a quasi co-location (QCL) information for downlink transmission, at least one uplink power control parameter for uplink transmission, and/or an uplink transmit spatial filter information; and

an executor configured to request the UE to establish a connection with a plurality of transmission/reception points (TRPs) and perform a downlink and/or uplink communication with one or more TRPs using the at least one transmission configuration.
A user equipment (UE) , comprising:

a memory;

a transceiver; and

a processor coupled to the memory and the transceiver;

wherein the UE is configured to perform the method of any one of claims 1 to 12.
A base station, comprising:

a memory;

a transceiver; and

a processor coupled to the memory and the transceiver;

wherein the base station is configured to perform the method of any one of claims 13 to 24.
A non-transitory machine-readable storage medium having stored thereon instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 24.
A chip, comprising:

a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the method of any one of claims 1 to 24.
A computer readable storage medium, in which a computer program is stored, wherein the computer program causes a computer to execute the method of any one of claims 1 to 24.
A computer program product, comprising a computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 24.
A computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 24.