Method and system for single CG based uplink transmission in multi-TRP operation

Abstract

Example implementations include the following method: receiving, by a wireless communication device, downlink signaling from a wireless communication node, the downlink signaling indicating a single configuration grant (CG) for uplink transmission, wherein the downlink signaling includes a plurality of first parameters, each of which has a plurality of values ​​associated with a plurality of sounding reference signal (SRS) resource sets. Example implementations also include the following method: sending, by a wireless communication node to a wireless communication device, downlink signaling indicating a single configuration grant (CG) for uplink transmission, wherein the downlink signaling includes a plurality of first parameters, each of which has a plurality of values ​​associated with a plurality of sounding reference signal (SRS) resource sets.

Description

[0001] This application is a divisional application of the Chinese patent application which entered the Chinese national stage on July 6, 2023, with application number 202180089529.3, and invention name “Method and system for uplink transmission based on a single CG in multi-TRP operation”. The entire contents of the application are incorporated herein by reference. Technical Field

[0002] The present embodiments relate generally to wireless communications, and more particularly to uplink transmission based on a single configuration grant (CG) in multiple transmit receive point (TRP) operations. Background Art

[0003] Dynamic scheduling is the main mode of operation of 5G New Radio (NR). For each transmission interval (e.g., time slot), the scheduler uses control signaling to instruct the UE to transmit or receive. Dynamic scheduling is flexible and can adapt to rapid changes in traffic behavior, but obviously requires associated control signaling. However, since it is desirable to avoid control signaling in some cases, NR supports transmission schemes that do not rely on dynamic grants. Summary of the invention

[0004] In order to realize multi-TRP physical uplink shared channel (PUSCH) transmission based on a single CG, it is advantageous to solve the following three problems; these three problems include: which high-level parameters of type 1 CG should be configured as TRP-specific, which high-level parameters of type 2 CG should be configured as TRP-specific, and the configuration or indication of the TRP generated by the parameter as a sequence specific to uplink transmission when in multi-TRP operation.

[0005] An example implementation includes the following wireless communication method: a wireless communication device receives downlink signaling from a wireless communication node, the downlink signaling indicating a single configured grant (Configured Grant, CG) for uplink transmission, wherein the downlink signaling includes multiple first parameters, each of the first parameters having multiple values ​​associated with multiple sounding reference signal (Sounding Reference Signal, SRS) resource sets.

[0006] The example implementation also includes the following method: wherein the downlink signaling includes Radio Resource Control (RRC) signaling.

[0007] The example implementation also includes the following method: wherein, in response to determining that the CG includes a type 1 CG, multiple first parameters in the downlink signaling include at least one of the following: an index of closed-loop power control, an index of a high-level parameter P0-PUSCH-AlphaSet, an index of a path loss reference signal, an indicator of an SRS resource for each SRS resource set in the multiple SRS resource sets, an indicator of precoding information and a number of layers, a value of a high-level parameter dmrs-SeqInitialization, or a value of a high-level parameter antennaPort.

[0008] The example implementation also includes the following method: a wireless communication device receives multiple high-level parameters in downlink signaling from a wireless communication node, each of the multiple high-level parameters configuring an association between each SRS resource set in the multiple SRS resource sets and one of the multiple values ​​of the first parameter.

[0009] Example implementations also include the following method: wherein downlink signaling configures an association between each of the plurality of SRS resource sets and one of the plurality of values ​​of the first parameter.

[0010] Example embodiments also include the following method: wherein, in response to determining that the CG includes a type 2 CG, multiple first parameters in the downlink signaling include at least one of the following: an index of closed-loop power control, or an index of a higher-layer parameter P0-PUSCH-AlphaSet.

[0011] The example implementation also includes the following method: a wireless communication device receives multiple high-level parameters in downlink signaling from a wireless communication node, each of the multiple high-level parameters configuring an association between each SRS resource set in the multiple SRS resource sets and one of the multiple values ​​of the first parameter.

[0012] Example implementations also include the following method: wherein downlink signaling configures an association between each of the plurality of SRS resource sets and one of the plurality of values ​​of the first parameter.

[0013] The example implementation also includes the following method: a wireless communication device receives a downlink control information (DCI) message from a wireless communication node, wherein the DCI message includes multiple second parameters, each second parameter has multiple values ​​associated with the multiple SRS resource sets, wherein the multiple second parameters in the DCI message include at least one of the following: an index of a path loss reference signal, an indicator of an SRS resource for each SRS resource set in the multiple SRS resource sets, an indicator of precoding information and a number of layers, a value of a high-level parameter dmrs-SeqInitialization, or a value of a high-level parameter antennaPort.

[0014] The example implementation also includes the following method: in response to determining that a high-level parameter in the downlink signaling is set to a codebook, a wireless communication device receives a DCI message from a wireless communication node, and the DCI message configures an association between each SRS resource set in the multiple SRS resource sets and one of the multiple values ​​of the second parameter, wherein each SRS resource set in the multiple SRS resource sets is indicated by one or more SRS resource indicators (SRS resource indicator, SRI) or transmitted precoding matrix indicators (transmitted precoding matrix indicator, TPMI).

[0015] The example implementation also includes the following method: in response to determining that a high-layer parameter in the downlink signaling is set to a non-codebook, the wireless communication device receives a DCI message from a wireless communication node, and the DCI message configures an association between each SRS resource set in the multiple SRS resource sets and one of the multiple values ​​of the second parameter, wherein each SRS resource set in the multiple SRS resource sets is indicated by one or more SRIs.

[0016] The example implementation also includes the following method: the wireless communication device sends an uplink transmission based on an indicated single CG to a wireless communication node, wherein the uplink transmission includes at least one of the following: a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission, a PUSCH repetition, or a PUSCH occasion.

[0017] Example implementations also include the following method: receiving, by a wireless communication device, a single downlink control information (DCI) message indicating the plurality of SRS resource sets from a wireless communication node, wherein the DCI message is at least one of the following: DCI format 0_1 ​​or DCI format 0_2.

[0018] Example implementations also include the following method: receiving, by a wireless communication device, a command from a wireless communication node, wherein the command is configured to determine a plurality of uplink transmission parameters, each of the plurality of uplink transmission parameters having a plurality of values ​​associated with the plurality of SRS resource sets.

[0019] Example embodiments also include the following method: wherein the command is received via RRC signaling, DCI indication, or medium access control layer element control (MAC CE) activation.

[0020] Example embodiments also include a method wherein an uplink transmission parameter of the plurality of uplink transmission parameters includes an identifier of a sequence configured to initialize data scrambling.

[0021] The example implementation also includes the following method: a wireless communication node sends downlink signaling to a wireless communication device, the downlink signaling indicating a single configuration grant (CG) for uplink transmission, wherein the downlink signaling includes multiple first parameters, each of the first parameters having multiple values ​​associated with multiple sounding reference signal (SRS) resource sets.

[0022] The exemplary embodiment also includes a device having at least one processor and a memory, wherein the at least one processor is configured to read a code from the memory and implement the method according to the present embodiment.

[0023] The exemplary embodiments also include a computer program product having a computer readable program medium code stored thereon, which, when executed by at least one processor, causes the at least one processor to implement the method according to the present embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] These and other aspects and features of the present embodiment will become apparent to those skilled in the art upon reading the following description of the specific embodiment in conjunction with the accompanying drawings, in which:

[0025] Figure 1 An example cellular communication network according to an embodiment of the present disclosure is shown, in which the techniques and other aspects disclosed herein can be implemented.

[0026] Figure 2 A block diagram of example base station (BS) and user equipment (UE) apparatus according to some embodiments of the present disclosure is shown.

[0027] Figure 3 A first example system according to the present embodiment is shown.

[0028] Figure 4A A first example system for a first transmission scheme according to the present embodiment is shown.

[0029] Figure 4B A second example system for a second transmission scheme according to the present embodiment is shown.

[0030] Figure 5 An example method of uplink transmission based on a single CG in multi-TRP operation according to the present embodiment is shown.

[0031] Figure 6 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Figure 5 The example method in the example method goes a step further.

[0032] Figure 7 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Figure 6 The example method in the example method goes a step further.

[0033] Figure 8 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Figure 7 The example method in the example method goes a step further.

[0034] Fig. 9 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Figure 8 The example method in the example method goes a step further.

[0035] Fig.10 Another example method of single CG-based uplink transmission in multi-TRP operation according to the present embodiment is shown.

[0036] Fig.11 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Fig.10 Another example method that takes the example method in a further step. DETAILED DESCRIPTION

[0037] The present embodiment will now be described in detail with reference to the accompanying drawings, which are provided as illustrative examples of the embodiments so that those skilled in the art can practice the embodiments and alternatives that are obvious to those skilled in the art. It is worth noting that the following figures and examples are not meant to limit the scope of the present embodiment to a single embodiment, but other embodiments are possible by interchanging some or all of the multiple elements described or shown. In addition, in the case where certain elements of the present embodiment can be partially or completely implemented using known components, only those parts of these known components necessary for understanding the present embodiment will be described, and detailed descriptions of other parts of these known components will be omitted to avoid blurring the present embodiment. Unless otherwise specified herein, as is obvious to those skilled in the art, embodiments described as implemented in software should not be limited thereto, but may include embodiments implemented in hardware, or a combination of software and hardware, and vice versa. In this specification, unless otherwise explicitly stated herein, embodiments showing components in the singular form should not be considered restrictive; rather, the present disclosure is intended to cover other embodiments including multiple identical components, and vice versa. In addition, unless explicitly specified, the applicant does not want any term in the specification or claims to be given an uncommon or special meaning. Furthermore, by way of illustration, the present embodiments encompass present and future known equivalents to the known components mentioned herein by way of illustration.

[0038] Figure 1 An example wireless communication network and / or system 100 is shown in which the techniques disclosed herein may be implemented according to an embodiment of the present disclosure. In the following discussion, the wireless communication network 100 may be any wireless network (e.g., a cellular network or a narrowband Internet of things (NB-IoT) network) and is referred to herein as "network 100." This example network 100 includes a base station 102 (hereinafter referred to as "BS 102") and a user equipment device 104 (hereinafter referred to as "UE 104") that may communicate with each other via a communication link 110 (e.g., a wireless communication channel), and a group of cells 126, 130, 132, 134, 136, 138, and 140 covering a geographic area 101. Figure 1 1, BS 102 and UE 104 are contained within respective geographic boundaries of cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station operating on its allocated bandwidth to provide adequate radio coverage to its intended users.

[0039] For example, BS 102 may operate on the allocated channel transmission bandwidth to provide sufficient coverage to UE 104. BS 102 and UE 104 may communicate via downlink radio frames 118 and uplink radio frames 124, respectively. Each radio frame 118 / 124 may be further divided into subframes 120 / 127, which may include data symbols 122 / 128. In the present disclosure, BS 102 and UE 104 are generally described herein as non-limiting examples of "communication nodes" that may practice the methods disclosed herein. According to various embodiments of the present solution, such communication nodes may be capable of wireless communication and / or wired communication.

[0040] Figure 2 A block diagram of an example wireless communication system 200 for sending and receiving wireless communication signals (e.g., orthogonal frequency division multiplexing (OFDM) / orthogonal frequency division multiple access (OFDMA) signals) according to some embodiments of the present solution is shown. The system 200 may include the following components and elements: The components and elements are configured to support known or conventional operating features that do not need to be described in detail herein. In an illustrative embodiment, the system 200 can be used in a wireless communication environment (e.g., as described above) Figure 1 The present invention relates to a method for transmitting (eg, sending and receiving) data symbols in a wireless communication environment 100 in an example embodiment.

[0041] The system 200 generally includes a base station 202 (hereinafter referred to as "BS 202") and a user equipment device 204 (hereinafter referred to as "UE 204"). The BS 202 includes a base station (BS) transceiver module 210 (also referred to as BS transceiver 210 or transceiver module 210), a BS antenna 212 (also referred to as downlink antenna 212 or antenna 212), a BS processor module 214 (also referred to as processor module 214), a BS storage module 216 (also referred to as storage module 216) and a network communication module 218, and the various modules are coupled and interconnected to each other via a data communication bus 220 as needed. UE 204 includes a user equipment (UE) transceiver module 230 (also referred to as UE transceiver 230 or transceiver module 230), a UE antenna 232 (also referred to as uplink antenna 232 or antenna 232), a UE storage module 234 (also referred to as storage module 234) and a UE processor module 236 (also referred to as processor module 236), each of which is coupled and interconnected to each other via a data communication bus 240 as needed. BS 202 communicates with UE 204 via a communication channel 250, which may be any wireless channel or other medium suitable for data transmission as described herein.

[0042] As will be appreciated by those skilled in the art, the system 200 may also include Figure 2In the embodiment of the present invention, the present invention can be used to implement the present invention in any number of modules outside the multiple modules shown in . It will be appreciated by those skilled in the art that the various illustrative blocks (blocks), modules, circuits and processing logic described in conjunction with the embodiments disclosed herein can be implemented with hardware, computer-readable software, firmware or any feasible combination thereof. In order to clearly illustrate the interchangeability and compatibility of such hardware, firmware and software, various illustrative components, blocks, modules, circuits and steps are generally described in terms of their functions. Whether such functions are implemented as hardware, firmware or software can depend on specific applications and the design constraints imposed on the entire system. Personnel familiar with the concepts described herein can implement such functions in a suitable manner for each specific application, but such implementation decisions should not be interpreted as limiting the scope of the present disclosure.

[0043] According to some embodiments, the UE transceiver 230 may be referred to herein as an "uplink" transceiver 230, which includes a radio frequency (RF) transmitter and an RF receiver, each of which includes circuitry coupled to an antenna 232. A duplex switch (not shown) may alternately couple the uplink transmitter or the uplink receiver to the uplink antenna in a time duplex manner. Similarly, according to some embodiments, the BS transceiver 210 may be referred to herein as a "downlink" transceiver 210, which includes an RF transmitter and an RF receiver, each of which includes circuitry coupled to an antenna 212. The downlink duplex switch may alternately couple the downlink transmitter or the downlink receiver to the downlink antenna 212 in a time duplex manner. The operation of the two transceiver modules 210 and 230 may be coordinated in time such that the circuitry of the uplink receiver is coupled to the uplink antenna 232 for receiving transmissions on the wireless transmission link 250 while the downlink transmitter is coupled to the downlink antenna 212. In some embodiments, there is tight time synchronization with a minimum guard time between changes in duplex direction.

[0044] The UE transceiver 230 and the base station transceiver 210 are configured to communicate via a wireless data communication link 250 and cooperate with an appropriately configured antenna 212 / 232 that can support a specific wireless communication protocol and modulation scheme. In some illustrative embodiments, the UE transceiver 230 and the base station transceiver 210 are configured to support industry standards, such as the Long Term Evolution (LTE) standard and the 5G standard in the early stages of development. However, it should be understood that the present disclosure is not necessarily limited to specific standards and related protocols in application. Instead, the UE transceiver 230 and the base station transceiver 210 can be configured to support alternative or additional wireless data communication protocols (including future standards or variations thereof).

[0045] According to various embodiments, BS202 may be, for example, an evolved node B (eNB), a serving eNB, a target eNB, a femto base station, or a pico base station. In some embodiments, UE 204 may be embodied in various types of user equipment, such as mobile phones, smart phones, personal digital assistants (PDAs), tablet computers, laptop computers, wearable computing devices, and the like. Processor modules 214 and 236 may be implemented or realized with the following components designed to perform the functions described herein: a general-purpose processor, a content addressable memory, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. In this manner, the processor may be implemented as a microprocessor, a controller, a microcontroller, or a state machine, and the like. The processor may also be implemented as a combination of multiple computing devices, such as a combination of a digital signal processor and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors combined with a digital signal processor core, or any other such configuration.

[0046] In addition, the steps of the method or algorithm described in conjunction with the embodiments disclosed herein can be directly embodied in hardware, firmware, software modules executed by processor modules 214 and 236, respectively, or any feasible combination thereof. Storage modules 216 and 234 can be implemented as random access memory (RAM) memory, flash memory, read-only memory (ROM) memory, erasable programmable read-only memory (EPROM) memory, electronically erasable programmable read-only memory (EEPROM) memory, registers, hard disks, removable disks, compact disk read-only storage (CD-ROM), or any other form of storage medium known in the art. In this regard, storage modules 216 and 234 can be coupled to processor modules 214 and 236, respectively, so that processor modules 214 and 236 can read information from storage modules 216 and 234, respectively, and write information to storage modules 216 and 234, respectively. Storage modules 216 and 234 can also be integrated into their corresponding processor modules 214 and 236. In some implementations, the storage modules 216 and 234 may each include a cache memory that stores temporary variables or other intermediate information during the execution of instructions to be executed by the processor modules 214 and 236, respectively. The storage modules 216 and 234 may also each include a non-volatile memory that stores instructions to be executed by the processor modules 214 and 236, respectively.

[0047] The network communication module 218 generally represents the hardware, software, firmware, processing logic and / or other components of the base station 202, which implements two-way communication between the base station transceiver 210 and other network components and communication nodes configured to communicate with the base station 202. For example, the network communication module 218 can be configured to support the Internet or the Worldwide Interoperability for Microwave Access (WiMAX) business. In a typical but non-limiting deployment, the network communication module 218 provides an 802.3 Ethernet interface so that the base station transceiver 210 can communicate with a traditional Ethernet-based computer network. In this way, the network communication module 218 can include a physical interface for connecting to a computer network (e.g., a Mobile Switching Center (MSC)). The terms "configured for", "configured to" and their combinations as used herein for a specific operation or function refer to a device, component, circuit, structure, machine, signal, etc. that is physically constructed, programmed, formatted and / or arranged to perform a specific operation or function.

[0048] Figure 3 A first example system according to the present embodiment is shown. Figure 3 As shown in the example of , the example system 300 includes configuration / indication 310, transmission parameters 312, TRP0 320, SRS resource set 0 322, TRP1 330, SRS resource set 1 332, PUSCH0 340 and PUSCH1 350.

[0049] If through Figure 3 As shown in the example in , for multi-TRP operation, since the channel conditions of the links between the UE and multiple TRPs are different, some configured / indicated transmission parameters (e.g., spatial relationship, precoding, power control, etc.) should be independent for each TRP. Accordingly, some parameters in the RRC configuration or DCI indication should be indicated separately for each TRP to obtain better performance. Therefore, it may be beneficial to indicate two indication information instead of one.

[0050] In the uplink, at least two transmission schemes without dynamic grants are supported, and these schemes are activated in different ways. These schemes include type 1 configuration grants, in which the RRC provides an uplink grant that includes activation of the grant, and type 2 configuration grants, in which the RRC provides a transmission period, and L1 / L2 control signaling is used to activate / deactivate the transmission.

[0051] Figure 4A A first example system for a first transmission scheme according to the present embodiment is shown. Figure 4A As shown in the example of , the example system 400A includes a UE 410, a network (NW) 420, an RRC signaling 422A, a monitoring physical downlink control channel (PDCCH) 430, and multiple PUSCHs 440.

[0052] Type 1 CG uses RRC signaling to set all transmission parameters, including period, time offset, and frequency resources, as well as possible modulation and coding schemes for uplink transmission. Once the UE receives the RRC configuration, it can start transmitting using the configuration grant at the time given by the period and offset. The RRC configuration takes effect immediately once it is received correctly. This time point may vary because it depends on whether RLC retransmission is required to convey the RRC command. To avoid this ambiguity, the time offset relative to the system frame number (SFN) is included in the configuration.

[0053] Figure 4B A second example system for a second transmission scheme according to the present embodiment is shown. Figure 4B As shown in the example of , the example system 400B includes a UE 410, a NW 420, RRC signaling 422B, a monitoring PDCCH 430, and multiple PUSCHs 440.

[0054] Type 2 CG is similar to Type 1 CG in that RRC signaling is used to configure the periodicity, but the transmission parameters are provided as part of the activation using PDCCH. When the UE receives the activation command, if there is data in the buffer, the UE transmits according to the pre-configured periodicity. If there is no data to send, similar to Type 1 CG, the UE will not send anything. Note that no time offset is required in this case because the activation time is well defined by the PDCCH transmission instant. The UE confirms the activation / deactivation of the configured authorization type 2 by sending a media access control layer (MAC) control element in the uplink. If there is no data waiting to be sent when the activation is received, the network will not know whether the UE did not send because it did not receive the activation command or because the transmit buffer was empty. This confirmation helps resolve this ambiguity.

[0055] In both schemes, multiple UEs may be configured with overlapping time-frequency resources in the uplink. In this case, it is up to the network to distinguish between transmissions from different UEs.

[0056] In addition, in the current NR specification, RRC IE ConfiguredGrantConfig is used to configure uplink transmission with a configured grant according to type 1 or type 2. Among them, when the field rrc-ConfiguredUplinkGrant is missing in ConfiguredGrantConfig, the UE uses the uplink (UL) grant and the parameters configured by the DCI addressed to the Configuration Scheduling-Radio Network Temporary Identifier (CS-RNTI) (Type 2) (for example, time domain and frequency domain allocation, antenna port, demodulation reference signal (DMRS) sequence initialization, precoder, rank, SRI, MCS, frequency hopping offset, PL-RS index, SFN, etc.).

[0057] In general, 5G NR includes multiple multiple-input multiple-output (MIMO) features that facilitate the use of a large number of antenna elements in base stations in both sub-6 GHz and above 6 GHz bands. One of these MIMO features is that it supports multi-TRP operation. The key to this feature is to work with multiple TRPs to send data to the UE, thereby improving transmission performance. Since NR is in the process of commercialization, various aspects that need further enhancement can be identified from actual deployment scenarios. For PUSCH reliability enhancement based on multi-TRP operation, since the multi-TRP PUSCH transmission scheme based on a single DCI and CG has a stable design framework, it has been agreed that it should be studied first in Rel-17 NR. Based on this, up to two SRS resource sets can be configured, where the usage in the high-level parameter SRS-ResourceSet is set to 'nonCodebook'. Accordingly, two SRIs in one DCI field can be used for SRS resource indication of two non-codebook-based SRS resource sets, respectively, and for each non-codebook-based PUSCH transmission, the transmission rank and the number of one or more SRS ports should be the same.

[0058] In some embodiments, the first communication node receives RRC signaling from the second communication node. Based on this, the first communication node sends one or more uplink transmissions without dynamic authorization based on parameters configured only by RRC signaling (type 1) (received from the second communication node). In some embodiments, the first communication node may be a UE and the second communication node may be at least one of the following: a NW or a next generation node B (gNB). In some embodiments, the uplink transmission may be sent in a frequency range (FR) 1 or FR2. In some embodiments, the uplink transmission may be at least one of the following: a PUSCH, a physical uplink control channel (PUCCH), or an SRS. In some embodiments, the PUSCH may be at least one of the following: a PUSCH transmission, a PUSCH repetition, or a PUSCH opportunity. In some embodiments, the PUSCH transmission may be associated with SRS resources in two SRS resource sets (which are indicated in a single DCI). In some embodiments, the single DCI may be a DCI format 0_1 ​​or a DCI format 0_2.

[0059] In some embodiments, the PUSCH transmissions associated with two SRS resource sets and their repetitions may be at least one of: allocated in two different time locations and the same frequency location, allocated in two different frequency locations and the same time location, and allocated in the same time location and the same frequency location and associated with two different code division multiplexing (CDM) groups. In some embodiments, some parameters in the RRC signaling may be configured with two values ​​associated with two SRS resource sets. In some embodiments, the parameter with two values ​​may be at least one of: an index of closed-loop power control, an index of a higher-layer parameter P0-PUSCH-AlphaSet to be used for the configuration, an index of a path loss reference signal, an indicator of SRS resources for each SRS resource set, an indicator of precoding information and the number of layers, a value of a higher-layer parameter dmrs-SeqInitialization, the value of which is related to the initialization of DMRS sequence generation for uplink transmissions with transform precoding disabled. In some embodiments, the value of the higher layer parameter antennaPort is related to the initialization of DMRS sequence generation for uplink transmission with switch precoding enabled.

[0060] In some embodiments, the association between the parameter having two configuration values ​​and the SRS resource set can be configured by two fields of the higher-level parameter rrc-ConfiguredUplinkGrant, and the two fields of the higher-level parameter rrc-ConfiguredUplinkGrant are respectively associated with the two SRS resource sets or are respectively used for the two SRS resource sets. In some embodiments, the two fields of each parameter configured with two values ​​are respectively associated with the two SRS resource sets or are respectively used for the two SRS resource sets.

[0061] In some embodiments, the first communication node receives RRC signaling from the second communication node. Based on this, the first communication node sends one or more uplink transmissions without a dynamic grant based on the RRC signaling (received from the second communication node) and the parameters provided by the PDCCH (addressed to the CS-RNTI) (Type 2).

[0062] In some embodiments, the first communication node may be a UE and the second communication node may be at least one of: a NW and a gNB. In some embodiments, the uplink transmission may be sent in FR1 or FR2. In some embodiments, the uplink transmission may be at least one of: a PUSCH, a PUCCH, or an SRS. In some embodiments, the PUSCH may be at least one of: a PUSCH transmission, a PUSCH repetition, or a PUSCH opportunity. In some embodiments, the PUSCH transmission may be associated with SRS resources from two SRS resource sets (which are indicated in a single DCI). In some embodiments, the single DCI may be a DCI format 0_1 ​​with a cyclic redundancy check (CRC) scrambled by a CS-RNTI, or a DCI format 0_2 with a CRC scrambled by a CS-RNTI.

[0063] In some embodiments, the PUSCH transmissions associated with two SRS resource sets and their repetitions may be at least one of: allocated in two different time locations and the same frequency location, allocated in two different frequency locations and the same time location, allocated in the same time location and the same frequency location and related to two different CDM groups.

[0064] In some embodiments, some parameters in the RRC signaling may be configured with two values ​​associated with two SRS resource sets. In some embodiments, the parameter with two values ​​may be at least one of the following: an index of a closed-loop power control, and an index of a higher-level parameter P0-PUSCH-AlphaSet to be used for the configuration. In some embodiments, the association between the configuration parameter with two values ​​and the SRS resource set may be configured by two fields in the higher-level parameter rrc-ConfiguredUplinkGrant, the two fields in the higher-level parameter rrc-ConfiguredUplinkGrant being associated with the two SRS resource sets, or being used for the two SRS resource sets, respectively; or the two fields of the parameter configured with two values ​​being associated with the two SRS resource sets, or being used for the two SRS resource sets, respectively. In some embodiments, some parameters in the DCI field provided by the PDCCH (addressed to the CS-RNTI) may be configured with two values ​​associated with the two SRS resource sets.

[0065] The parameter having two values ​​may be at least one of the following: an indicator of the SRS resource of each SRS resource set, an indicator of precoding information and the number of layers, an indicator of the DM-RS initialization field. In some embodiments, the association between the indicated parameter and the SRS resource set may be configured by two fields of each parameter, and the two fields of each parameter are indicated by the following two values, which are respectively associated with the two SRS resource sets or respectively used for the two SRS resource sets.

[0066] In some embodiments, a first communication node receives a command from a second communication node to determine parameters of one or more PUSCHs associated with SRS resources from two SRS resource sets (which are indicated in a single DCI indication). In some embodiments, the first communication node may be a UE, and the second communication node may be at least one of the following: a NW or a gNB. In some embodiments, the PUSCH may be sent via a codebook-based scheme or a non-codebook-based scheme. In some embodiments, the PUSCH may be at least one of the following: a PUSCH transmission, a PUSCH repetition, or a PUSCH opportunity.

[0067] In some embodiments, the one or more PUSCHs corresponding to the two spatial relationships may be at least one of a plurality of potential states. In some embodiments, a first potential state is allocated in two different time locations and the same frequency location, wherein the time location corresponding to each PUSCH may be a time slot, or wherein the time location corresponding to each PUSCH may be an OFDM symbol in a time slot. In some embodiments, a second potential state is allocated in two different frequency locations and the same time location. In some embodiments, a third potential state is allocated in the same time location and the same frequency location and is associated with two different CDM groups.

[0068] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of one or more PUSCHs associated with two SRS resource sets. In some embodiments, the association between the value of the identifier and the two SRS resource sets may be achieved by using the first value and the second value of the identifier for the first SRS resource set and the second SRS resource set, respectively, or associating the first value and the second value of the identifier with an indicator of the first SRS resource set and an indicator of the second SRS resource set, respectively.

[0069] In some embodiments, when txConfig in the higher layer parameter PUSCH-Config is set to 'Codebook', the indicator of the SRS resource set may be one or more SRI indications or one or more TPMI indications in the DCI. In some embodiments, when txConfig in the higher layer parameter PUSCH-Config is set to 'nonCodebook', the indicator of the SRS resource set may be one or more SRI indications in the DCI. In some embodiments, the command that determines the parameter may be at least one of: RRC signaling, MAC CE activation, or DCI indication.

[0070] In some embodiments, the first communication node receives a command from the second communication node to determine parameters of one or more PUCCHs associated with two spatial relationships activated by the MAC CE. In some embodiments, the first communication node may be a UE, and the second communication node may be at least one of the following: a NW or a gNB. In some embodiments, the format of the PUCCH may be at least one of the following: PUCCH format 0, PUCCH format 1, PUCCH format 2, PUCCH format 3, or PUCCH format 4.

[0071] In some embodiments, the PUCCH may be at least one of: a PUCCH transmission, a PUCCH repetition, or a PUCCH opportunity. In some embodiments, one or more PUCCHs corresponding to two spatial relationships may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each PUCCH may be a time slot, or the time location corresponding to each PUCCH may be an OFDM symbol in a time slot. In some embodiments, one or more PUCCHs corresponding to two spatial relationships may be allocated in two different frequency locations and the same time location. In some embodiments, one or more PUCCHs corresponding to two spatial relationships may be allocated in the same time location and the same frequency location and may be associated with two different CDM groups.

[0072] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of one or more PUCCHs (which are configured with two spatial relationships). In some embodiments, the one or more PUCCHs corresponding to the two spatial relationships may be an association between the value of the identifier and the two spatial relationships, and the association between the value of the identifier and the two spatial relationships may be achieved by: using the first value and the second value of the identifier for the first spatial relationship and the second spatial relationship, respectively; or, associating the first value and the second value of the identifier with an indicator of the first spatial relationship and an indicator of the second spatial relationship, respectively. In some embodiments, the command that determines the parameter may be at least one of the following: RRC signaling, MAC CE activation, or DCI indication.

[0073] In some embodiments, a first communication node receives a command from a second communication node to determine parameters of a DM-RS for one or more PUSCHs, the parameters being associated with SRS resources from two SRS resource sets (which are indicated by a single DCI). In some embodiments, the first communication node may be a UE, and the second communication node may be at least one of the following: a NW or a gNB. In some embodiments, the PUSCH may be sent via a codebook-based scheme or a non-codebook-based scheme. In some embodiments, the PUSCH may be at least one of the following: a PUSCH transmission, a PUSCH repetition, or a PUSCH opportunity. In some embodiments, one or more PUSCHs corresponding to two spatial relationships may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each PUSCH may be a time slot, or the time location corresponding to each PUSCH may be an OFDM symbol in a time slot. In some embodiments, one or more PUSCHs corresponding to two spatial relationships are allocated in two different frequency locations and the same time location. In some embodiments, one or more PUSCHs corresponding to two spatial relationships are allocated in the same time position and the same frequency position and are associated with two different CDM groups.

[0074] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of a DM-RS of a PUSCH associated with two SRS resource sets. In some embodiments, the association between the value of the identifier and the two SRS resource sets may be achieved by using the first value and the second value of the identifier for the first SRS resource set and the second SRS resource set, respectively, or associating the first value and the second value of the identifier with an indicator of the first RS resource set and an indicator of the second SRS resource set, respectively. In some embodiments, when txConfig in the higher-layer parameter PUSCH-Config is set to 'Codebook', the indicator of the SRS resource set may be one or more SRI indications or one or more TPMI indications in the DCI. In some embodiments, when txConfig in the higher-layer parameter PUSCH-Config is set to 'nonCodebook', the indicator of the SRS resource set may be one or more SRI indications in the DCI. In some embodiments, the command determining the parameter may be at least one of: RRC signaling, MAC CE activation, or DCI indication.

[0075] In some embodiments, a first communication node receives a command from a second communication node to determine parameters of a phase tracking reference signal (PT-RS) for one or more PUSCHs, the parameters being associated with SRS resources from two SRS resource sets (which are indicated by a single DCI). In some embodiments, the first communication node may be a UE, and the second communication node may be at least one of the following: a NW or a gNB. In some embodiments, the PUSCH may be at least one of the following: a PUSCH transmission, a PUSCH repetition, or a PUSCH opportunity.

[0076] In some embodiments, the PUSCH may be at least one of: a PUSCH transmission, a PUSCH repetition, or a PUSCH opportunity. In some embodiments, one or more PUSCHs corresponding to two spatial relationships may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each PUSCH may be a time slot, or the time location corresponding to each PUSCH may be an OFDM symbol in a time slot. In some embodiments, one or more PUSCHs corresponding to two spatial relationships may be allocated in two different frequency locations and the same time location. In some embodiments, one or more PUSCHs corresponding to two spatial relationships may be allocated in the same time location and the same frequency location and may be associated with two different CDM groups.

[0077] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of a PT-RS of a PUSCH associated with two SRS resource sets. In some embodiments, the association between the value of the identifier and the two SRS resource sets may be achieved by using a first value and a second value of the identifier for the first SRS resource set and the second SRS resource set, respectively, or associating the first value and the second value of the identifier with an indicator of the first SRS resource set and an indicator of the second SRS resource set, respectively. In some embodiments, when txConfig in the higher-layer parameter PUSCH-Config is set to 'Codebook', the indicator of the SRS resource set may be one or more SRI indications or one or more TPMI indications in the DCI. In some embodiments, when txConfig in the higher-layer parameter PUSCH-Config is set to 'nonCodebook', the indicator of the SRS resource set may be one or more SRI indications in the DCI. In some embodiments, the command determining the parameter may be at least one of: RRC signaling, MAC CE activation, or DCI indication.

[0078] In some embodiments, a first communication node receives a command from a second communication node to determine parameters of a DM-RS for one or more PUCCHs associated with SRS resources from two SRS resource sets (which are indicated by a single DCI). In some embodiments, the first communication node may be a UE, and the second communication node may be at least one of the following: a NW or a gNB. In some embodiments, the format of the PUCCH may be at least one of the following: PUCCH format 0, PUCCH format 1, PUCCH format 2, PUCCH format 3, or PUCCH format 4. In some embodiments, the PUCCH may be at least one of the following: PUCCH transmission, PUCCH repetition, or PUCCH opportunity. In some embodiments, one or more PUCCHs corresponding to two spatial relationships may be allocated in two different time positions and the same frequency position. In some embodiments, the time position corresponding to each PUCCH may be a time slot, or the time position corresponding to each PUCCH may be an OFDM symbol in a time slot. In some embodiments, one or more PUCCHs corresponding to two spatial relationships may be allocated in two different frequency positions and the same time position. In some implementations, one or more PUCCHs corresponding to two spatial relationships may be allocated in the same time location and the same frequency location and be associated with two different CDM groups.

[0079] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of a PT-RS of one or more PUCCHs configured with two different spatial relationships. In some embodiments, the association between the value of the identifier and the two spatial relationships may be implemented by using a first value and a second value of the identifier for the first spatial relationship and the second spatial relationship, respectively, or associating the first value and the second value of the identifier with an indicator of the first spatial relationship and an indicator of the second spatial relationship, respectively. In some embodiments, the command that determines the parameter may be at least one of: RRC signaling, MAC CE activation, or DCI indication.

[0080] In some embodiments, a first communication node receives a command from a second communication node to obtain parameters of one or more physical downlink shared channels (PDSCHs) associated with two configured core set (CORESET) pool indexes. In some embodiments, the first communication node may be a UE, and the second communication node may be at least one of the following: a NW or a gNB. In some embodiments, the PDSCH may be at least one of the following: a PDSCH transmission, a PDSCH repetition, or a PDSCH opportunity. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each PDSCH may be a time slot, or the time location corresponding to each PDSCH may be an OFDM symbol in a time slot. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in two different frequency locations and the same time location. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in the same time location and the same frequency location and are related to two different CDM groups.

[0081] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of a PDSCH associated with two configured CORESET pool indices. In some embodiments, the association of one or more PDSCHs with two configured CORESET pool indices may be an association between a value of the identifier and the two configured CORESET pool indices, which may be achieved by using a first value and a second value of the identifier for a first SRS resource set and a second SRS resource set, respectively, or associating the first value and the second value of the identifier with an indicator of a first configured CORESET pool index and an indicator of a second configured CORESET pool index, respectively. In some embodiments, the command determining the parameter may be at least one of: RRC signaling, MAC CE activation, or DCI indication.

[0082] In some embodiments, a first communication node receives a command from a second communication node to obtain parameters of one or more PDCCHs associated with two configured CORESET pool indexes. In some embodiments, the first communication node may be a UE, and the second communication node may be at least one of: a NW or a gNB. In some embodiments, the PDCCH may be at least one of: a PDCCH transmission, a PDCCH repetition, or a PDCCH opportunity. In some embodiments, one or more PDCCHs associated with two configured CORESET pool indexes may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each PDCCH may be a time slot, or the time location corresponding to each PDCCH may be an OFDM symbol in a time slot. In some embodiments, one or more PDCCHs associated with two configured CORESET pool indexes may be allocated in two different frequency locations and the same time location. In some embodiments, one or more PDCCHs associated with two configured CORESET pool indexes may be allocated in the same time location and the same frequency location and are related to two different CDM groups.

[0083] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of the PDCCH associated with two configured CORESET pool indices. In some embodiments, the association between the value of the identifier and the two configured CORESET pool indices may be achieved by using a first value and a second value of the identifier for a first SRS resource set and a second SRS resource set, respectively, or associating the first value and the second value of the identifier with an indicator of the first configured CORESET pool index and an indicator of the second configured CORESET pool index, respectively. In some embodiments, the command determining the parameter may be at least one of: RRC signaling, MAC CE activation, or DCI indication.

[0084] In some embodiments, the first communication node receives a command from the second communication node to determine parameters for DM-RS for one or more PDSCHs associated with two configured CORESET pool indices. In some embodiments, the first communication node may be a UE and the second communication node may be at least one of: a NW or a gNB.

[0085] In some embodiments, the PDSCH may be at least one of: a PDSCH transmission, a PDSCH repetition, or a PDSCH opportunity. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each PDSCH may be a time slot, or the time location corresponding to each PDSCH may be an OFDM symbol in a time slot. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in two different frequency locations and the same time location. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in the same time location and the same frequency location and relate to two different CDM groups.

[0086] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of a DM-RS of a PDSCH associated with two configured CORESET pool indices. In some embodiments, the association between the value of the identifier and the two configured CORESET pool indices may be achieved by using a first value and a second value of the identifier for a first SRS resource set and a second SRS resource set, respectively, or associating the first value and the second value of the identifier with an indicator of a first configured CORESET pool index and an indicator of a second configured CORESET pool index, respectively. In some embodiments, the command determining the parameter may be at least one of: RRC signaling, MACCE activation, or DCI indication.

[0087] In some embodiments, a first communication node receives a command from a second communication node to determine parameters for a PT-RS for one or more PDSCHs associated with two configured CORESET pool indexes. In some embodiments, the first communication node may be a UE, and the second communication node may be at least one of: a NW or a gNB. In some embodiments, the PDSCH may be at least one of: a PDSCH transmission, a PDSCH repetition, or a PDSCH opportunity. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each PDSCH may be a time slot, or the time location corresponding to each PDSCH may be an OFDM symbol in a time slot. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in two different frequency locations and the same time location. In some embodiments, one or more PDSCHs associated with two configured CORESET pool indexes may be allocated in the same time location and the same frequency location and are associated with two different CDM groups.

[0088] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of a PT-RS of a PDSCH associated with two configured CORESET pool indices. In some embodiments, the association between the value of the identifier and the two configured CORESET pool indices may be achieved by using a first value and a second value of the identifier for a first SRS resource set and a second SRS resource set, respectively, or associating the first value and the second value of the identifier with an indicator of a first configured CORESET pool index and an indicator of a second configured CORESET pool index, respectively. In some embodiments, the command determining the parameter may be at least one of: RRC signaling, MACCE activation, or DCI indication.

[0089] In some embodiments, the first communication node receives a command from the second communication node to determine parameters for DM-RS for one or more PDCCHs associated with two configured CORESET pool indices. In some embodiments, the first communication node may be a UE and the second communication node may be at least one of: a NW or a gNB.

[0090] In some embodiments, the PDCCH may be at least one of: a PDCCH transmission, a PDCCH repetition, or a PDCCH opportunity. In some embodiments, one or more PDCCHs associated with two configured CORESET pool indexes may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each PDCCH may be a time slot, or the time location corresponding to each PDCCH may be an OFDM symbol in a time slot. In some embodiments, one or more PDCCHs associated with two configured CORESET pool indexes may be allocated in two different frequency locations and the same time location. In some embodiments, one or more PDCCHs associated with two configured CORESET pool indexes may be allocated in the same time location and the same frequency location and are related to two different CDM groups. In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of DM-RS of the PDCCH associated with two SRS resource sets. In some embodiments, the command determining the parameter may be at least one of: RRC signaling, MAC CE activation, or DCI indication.

[0091] In some embodiments, a first communication node receives a command from a second communication node to determine parameters of one or more channel state information reference signals (CSI-RS) associated with two configured CORESET pool indexes. In some embodiments, the first communication node may be a UE and the second communication node may be at least one of: a NW or a gNB.

[0092] In some embodiments, the CSI-RS may be at least one of: a CSI-RS transmission, a CSI-RS repetition, or a CSI-RS opportunity. In some embodiments, one or more CSI-RS associated with two configured CORESET pool indexes may be allocated in two different time locations and the same frequency location. In some embodiments, the time location corresponding to each CSI-RS may be a time slot, or the time location corresponding to each CSI-RS may be an OFDM symbol in a time slot. In some embodiments, one or more CSI-RS associated with two configured CORESET pool indexes may be allocated in two different frequency locations and the same time location. In some embodiments, one or more CSI-RS associated with two configured CORESET pool indexes may be allocated in the same time location and the same frequency location and be associated with two different CDM groups.

[0093] In some embodiments, the parameter may be an identifier (e.g., c_init) for initializing data scrambling of one or more CSI-RS associated with two configured CORESET pool indexes. In some embodiments, the association between the value of the identifier and the two configured CORESET pool indexes may be achieved by using a first value and a second value of the identifier for a first SRS resource set and a second SRS resource set, respectively, or associating the first value and the second value of the identifier with an indicator of a first configured CORESET pool index and an indicator of a second configured CORESET pool index, respectively. In some embodiments, the command determining the parameter may be at least one of: RRC signaling, MAC CE activation, or DCI indication.

[0094] Figure 5 An example method for uplink transmission based on a single CG in multi-TRP operation according to the present embodiment is shown. In some embodiments, at least one of the example system 100 and the example system 200 performs the method 500 according to the present embodiment. In some embodiments, the method 500 starts at step 510.

[0095] At step 510, the example system receives downlink signaling of a single configuration grant (CG). In some embodiments, step 510 includes at least one of steps 512, 514, 516, and 518. At step 512, the example system receives downlink signaling from the BS via the UE. At step 514, the example system receives a CG for uplink transmission. At step 516, the example system receives downlink signaling having a plurality of first parameters. At step 518, the example system receives the plurality of first parameters, each first parameter having a plurality of values ​​for a plurality of SRS resource sets. Then, method 500 proceeds to step 520.

[0096] At step 520, the example system determines whether the CG is of a first type (Type 1) or a second type (Type 2). Based on determining that the CG is of the first type, the method 500 proceeds to step 530. Alternatively, based on determining that the CG is of the second type, the method 500 proceeds to step 604.

[0097] At step 530, the example system has a plurality of first parameters in downlink signaling, the plurality of first parameters comprising at least one of: an index, an indicator, and a value. In some embodiments, step 530 comprises at least one of steps 532, 534, and 536. At step 532, the example system has a first parameter comprising at least one index. At step 534, the example system has a first parameter comprising at least one indicator. At step 536, the example system has a first parameter comprising at least one value of a high-level parameter. Then, method 500 proceeds to step 602.

[0098] Figure 6 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Figure 5 In some embodiments, at least one of the example system 100 and the example system 200 performs the method 600 according to the present embodiment. In some embodiments, the method 600 starts at step 602. Then, the method 600 continues to step 610.

[0099] At step 610 , the example system has a plurality of first parameters in downlink signaling, the plurality of first parameters including an index. Then, the method 600 proceeds to step 604. Then, at step 604, the method 600 proceeds to step 620.

[0100] At step 620, the example system receives a high-level parameter in downlink signaling. In some embodiments, the high-level parameter is or includes rrc-ConfiguredUplinkGrant. In some embodiments, step 620 includes at least one of steps 622 and 624. At step 622, the example system receives, via the UE, a high-level parameter in downlink signaling from the BS. At step 624, the example system receives each high-level parameter (HLP) that configures an association of an SRS resource set with a first parameter. Then, method 600 proceeds to step 630.

[0101] At step 630, the example system determines whether the high-level parameters are set to the codebook. Based on determining that the high-level parameters are set to the codebook, the method 600 proceeds to step 640. Alternatively, based on determining that the high-level parameters are not set to the codebook, the method 600 proceeds to step 650.

[0102] At step 640, the example system receives downlink control information (DCI) of the SRS and a second parameter, the second parameter being indicated by at least one of: one or more SRIs, or one or more TPMIs. In some implementations, step 640 includes step 642. At step 642, the example system receives, via the UE, the DCI of the SRS from the BS and a second parameter. Then, the method 600 proceeds to step 702.

[0103] At step 650, the example system receives downlink control information (DCI) of the SRS and a second parameter, the second parameter being indicated by one or more SRIs. In some implementations, step 650 includes step 652. At step 652, the example system receives, via the UE, the DCI of the SRS from the BS and a second parameter. Then, the method 600 proceeds to step 702.

[0104] Figure 7The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Figure 6 In some embodiments, at least one of the example system 100 and the example system 200 performs the method 700 according to the present embodiment. In some embodiments, the method 700 starts at step 702. Then, the method 700 continues to step 710.

[0105] At step 710, the example system receives downlink control information (DCI). In some embodiments, step 710 includes at least one of steps 712, 714, and 716. At step 712, the example system receives the DCI from the BS via the UE. At step 714, the example system receives the DCI having a plurality of second parameters. At step 716, the example system receives the plurality of second parameters, each second parameter having a plurality of values ​​for a plurality of SRS resource sets. Then, the method 700 proceeds to step 720.

[0106] At step 720, the example system has a plurality of second parameters in the DCI, the plurality of second parameters comprising at least one of: an index, an indicator, and a value. In some embodiments, step 720 includes at least one of steps 722, 724, and 726. At step 722, the example system has a second parameter comprising at least one index. At step 724, the example system has a second parameter comprising at least one indicator. At step 726, the example system has a second parameter comprising at least one value of a high-level parameter. Then, method 700 continues to step 802.

[0107] Figure 8 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Figure 7 In some implementations, at least one of the example system 100 and the example system 200 performs the method 800 according to the present implementation. In some implementations, the method 800 starts at step 802. Then, the method 800 continues to step 810.

[0108] At step 810, the example system sends an uplink transmission based on the indicated CG. In some embodiments, step 810 includes at least one of steps 812, 814, 816, and 818. At step 812, the example system sends an uplink transmission to the BS via the UE. At step 814, the example system sends an uplink transmission via a PUSCH transmission. At step 816, the example system sends an uplink transmission via PUSCH repetitions. At step 818, the example system sends an uplink transmission via a PUSCH opportunity. Then, method 800 continues to step 820.

[0109] At step 820, the example system receives a single DCI indicating multiple SRS resource sets. In some embodiments, step 820 includes at least one of steps 822, 824, and 826. At step 822, the example system receives a DCI from the BS via the US. At step 824, the example system receives a DCI of DCI format 0_1. At step 826, the example system receives a DCI of DCI format 0_2. Then, method 800 continues to step 902.

[0110] Fig. 9 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Figure 8 In some embodiments, at least one of the example system 100 and the example system 200 performs the method 900 according to the present embodiment. In some embodiments, the method 900 starts at step 902. Then, the method 900 continues to step 910.

[0111] At step 910, the example system receives a command to determine an uplink transmission parameter. In some embodiments, step 910 includes at least one of steps 912, 914, and 916. At step 912, the example system receives a command from a BS via a UE. At step 914, the example system has a parameter having multiple values ​​for multiple SRS resource sets. At step 916, the example system receives the command via at least one of: RRC signaling, DCI indication, or MAC CE activation. In some embodiments, method 900 ends at step 910.

[0112] Fig.10 Another example method of uplink transmission based on a single CG in multi-TRP operation according to the present embodiment is shown. In some embodiments, at least one of the example system 100 and the example system 200 performs the method 1000 according to the present embodiment. In some embodiments, the method 1000 starts at step 510.

[0113] At step 510, the example system receives downlink signaling for a single configuration grant (CG). Then, method 1000 proceeds to step 520. At step 520, the example system determines whether the CG is of a first type (type 1) or a second type (type 2). Based on determining that the CG is of the first type, method 1000 proceeds to step 530. Alternatively, based on determining that the CG is of the second type, method 1000 proceeds to step 610. At step 530, the example system has multiple first parameters in the downlink signaling, the multiple first parameters including at least one of the following: an index, an indicator, and a value. Then, method 1000 proceeds to step 620. At step 610, the example system has multiple first parameters in the downlink signaling, the multiple first parameters including an index. Then, method 1000 proceeds to step 620.

[0114] At step 620, the example system receives a high-layer parameter in downlink signaling. Then, the method 1000 proceeds to step 630. At step 630, the example system determines whether the high-layer parameter is set to a codebook. Based on determining that the high-layer parameter is set to a codebook, the method 1000 proceeds to step 640. Alternatively, based on determining that the high-layer parameter is not set to a codebook, the method 600 proceeds to step 650.

[0115] At step 640 , the exemplary system receives downlink control information (DCI) of the SRS and a second parameter, the second parameter being indicated by at least one of: one or more SRIs, or one or more TPMIs. Then, the method 1000 proceeds to step 1102 .

[0116] At step 650 , the exemplary system receives downlink control information (DCI) of the SRS and a second parameter, the second parameter being indicated by one or more SRIs. Then, the method 1000 proceeds to step 1102 .

[0117] Fig.11 The comparison of uplink transmission based on a single CG in multi-TRP operation is shown. Fig.10 Another example method further includes the example method in step 710. In some implementations, at least one of the example system 100 and the example system 200 performs the method 1100 according to the present implementation. In some implementations, the method 1100 starts at step 710.

[0118] At step 710, the example system receives downlink control information (DCI). Then, the method 1100 proceeds to step 720. At step 720, the example system has a plurality of second parameters in the DCI, the plurality of second parameters comprising at least one of: an index, an indicator, and a value. Then, the method 1100 proceeds to step 810.

[0119] At step 810, the example system sends an uplink transmission based on the indicated CG. Then, the method 1100 continues to step 820. At step 820, the example system receives a single DCI indicating multiple SRS resource sets. Then, the method 1100 continues to step 910. At step 910, the example system receives a command to determine uplink transmission parameters. In some embodiments, the method 1100 ends at step 910.

[0120] The subject matter described herein sometimes shows a plurality of different parts, which are contained in different other parts or connected with different other parts.It should be understood that this architecture depicted is illustrative, and many other architectures that actually realize the same function can be realized.Conceptually, any arrangement of the parts realizing the same function is effectively "associated" so as to realize the required function.Therefore, any two parts that are combined to realize a specific function herein can be regarded as "associated" with each other so as to realize the required function, without considering architecture or intermediate parts.Similarly, any two parts so associated can also be regarded as "operably connected" or "operably coupled" to each other to realize the required function, and any two parts that can be so associated can also be regarded as "operably coupled" to each other to realize the required function.The specific example that can be operably coupled includes but is not limited to: physically matchable and / or physically interactive parts, and / or wirelessly interactive and / or wirelessly interactive parts, and / or logically interactive and / or logically interactive parts.

[0121] Regarding the use of plural terms and / or singular terms herein, those skilled in the art can appropriately convert from plural to singular, and / or from singular to plural, depending on the context and / or application. For clarity, various singular / plural arrangements may be explicitly set forth herein.

[0122] Those skilled in the art will understand that, in general, the terms used herein, especially the terms used in the appended claims (e.g., the subject matter of the appended claims) are generally intended to be “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “including but not limited to,” etc.).

[0123] Although the drawings and description can illustrate the specific order of the multiple steps of the method, the order of these steps may be different from the order depicted and described, unless otherwise stated above. In addition, unless otherwise stated above, two or more steps can be performed simultaneously or partially simultaneously. This variation can, for example, depend on the selected software and hardware system and depend on the designer's choice. All these variations are within the scope of the present disclosure. Similarly, the software implementation of the described method can be completed with standard programming techniques with rule-based logic and other logic to complete various connection steps, processing steps, comparison steps and decision steps.

[0124] Those skilled in the art will also understand that if a specific number of submitted claim statements is intended, such intent will be expressly stated in the claims, and in the absence of such a statement, no such intent exists. For example, to aid understanding, the following appended claims may contain the use of the introductory phrases "at least one" and "one or more" to introduce claim statements. However, even if the same claim includes the introductory phrases "one or more" or "at least one" and an indefinite article (e.g., "a" or "an"), the use of such phrases should not be interpreted as implying that a claim statement introduced by the indefinite article "a" or "an" limits any particular claim containing such submitted claim statement to an invention containing only one such statement (e.g., "a" and / or "an" should generally be interpreted to mean "at least one" or "one or more"); the same applies to claim statements introduced using definite articles. In addition, even if a specific number of claim statements as filed is explicitly stated, those skilled in the art will recognize that such a statement should generally be interpreted to mean at least the stated number (e.g., the mere statement "two statements," without other modifiers, generally means at least two statements, or two or more statements).

[0125] Furthermore, in those instances where a convention similar to “at least one of A, B, and C, etc.” is used, generally speaking, such construction is intended to be in the sense that a person skilled in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include, but is not limited to, a system having only A, a system having only B, a system having only C, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B, and C, etc.). In those instances where a convention similar to “at least one of A, B, or C, etc.” is used, generally speaking, such construction is intended to be in the sense that a person skilled in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include, but is not limited to, a system having only A, a system having only B, a system having only C, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B, and C, etc.). Those skilled in the art will also understand that, whether in the specification, claims or drawings, virtually any disjunctive word and / or phrase presenting two or more optional terms should be understood to include the following possibilities: including one of the multiple terms, any of the multiple terms, or both terms. For example, the phrase "A or B" will be understood to include the following possibilities: "A" or "B" or "A and B".

[0126] Additionally, use of the terms "approximately," "about," "around," "substantially," etc. means plus or minus ten percent unless otherwise indicated.

[0127] For the purpose of illustration and description, the description of illustrative embodiments is presented above. It is not intended to be exhaustive or limiting with respect to the precise form disclosed, and modifications and variations are possible according to the above teachings or may be obtained from the practice of the disclosed embodiments. It is intended that the scope of the invention is limited by the appended claims and their equivalents.

[0128] It should also be understood that any reference to elements using titles (e.g., "first," "second," etc.) herein does not generally limit the number or order of these elements. Rather, these titles may be used herein as a convenient way to distinguish between two or more elements or element instances. Thus, reference to a first element and a second element does not mean that only two elements may be used, or that the first element must precede the second element in some way.

Claims

1. A wireless communication method, comprising: The wireless communication device receives downlink signaling from the wireless communication node, wherein the downlink signaling indicates a single configuration authorization CG for uplink transmission; The downlink signaling includes a plurality of first parameters, each of which has a plurality of values ​​associated with a corresponding plurality of sounding reference signal SRS resource sets, and Each of the multiple first parameters has an association between each SRS resource set in the multiple SRS resource sets and a corresponding one of the multiple values ​​of the first parameter.

2. The wireless communication method according to claim 1, wherein: The downlink signaling includes radio resource control RRC signaling.

3. The wireless communication method according to claim 1, wherein: When the CG is a type 1 CG, the multiple first parameters in the downlink signaling include at least one of the following: Index of closed loop power control; Index of the higher layer parameter P0-PUSCH-AlphaSet; The index of the path loss reference signal; an indicator of an SRS resource of each SRS resource set of the plurality of SRS resource sets; Precoding information and an indicator of the number of layers; The value of the higher layer parameter dmrs-SeqInitialization; or Value of the higher-level parameter antennaPort.

4. The wireless communication method according to claim 1, wherein: The downlink signaling configures the association between each of the multiple SRS resource sets and a corresponding one of the multiple values ​​of the first parameter.

5. The wireless communication method according to claim 1, wherein: When the CG is a type 2 CG, the multiple first parameters in the downlink signaling include at least one of the following: an index for closed loop power control; or Index of the higher layer parameter P0-PUSCH-AlphaSet.

6. A wireless communication method, comprising: The wireless communication node sends a downlink signaling to the wireless communication device, wherein the downlink signaling indicates a single configuration authorization CG for uplink transmission; The downlink signaling includes a plurality of first parameters, each of which has a plurality of values ​​associated with a corresponding plurality of sounding reference signal SRS resource sets, and Each of the multiple first parameters has an association between each SRS resource set in the multiple SRS resource sets and a corresponding one of the multiple values ​​of the first parameter.

7. The wireless communication method according to claim 6, wherein: The downlink signaling includes radio resource control RRC signaling.

8. The wireless communication method according to claim 6, wherein: When the CG is a type 1 CG, the multiple first parameters in the downlink signaling include at least one of the following: Index of closed loop power control; Index of the higher layer parameter P0-PUSCH-AlphaSet; The index of the path loss reference signal; an indicator of an SRS resource of each SRS resource set of the plurality of SRS resource sets; Precoding information and an indicator of the number of layers; The value of the higher layer parameter dmrs-SeqInitialization; or Value of the higher-level parameter antennaPort.

9. The wireless communication method according to claim 6, wherein: The downlink signaling configures the association between each of the multiple SRS resource sets and a corresponding one of the multiple values ​​of the first parameter.

10. The wireless communication method according to claim 6, wherein: When the CG is a type 2 CG, the multiple first parameters in the downlink signaling include at least one of the following: an index for closed loop power control; or Index of the higher layer parameter P0-PUSCH-AlphaSet.

11. A wireless communication device, comprising: At least one processor and a receiver, the at least one processor and the receiver being configured to: receiving downlink signaling from a wireless communication node, the downlink signaling indicating a single configuration authorization CG for uplink transmission; The downlink signaling includes a plurality of first parameters, each of which has a plurality of values ​​associated with a corresponding plurality of sounding reference signal SRS resource sets, and Each of the multiple first parameters has an association between each SRS resource set in the multiple SRS resource sets and a corresponding one of the multiple values ​​of the first parameter.

12. The wireless communication device according to claim 11, wherein: The downlink signaling includes radio resource control RRC signaling.

13. The wireless communication device according to claim 11, wherein: When the CG is a type 1 CG, the multiple first parameters in the downlink signaling include at least one of the following: Index of closed loop power control; Index of the higher layer parameter P0-PUSCH-AlphaSet; The index of the path loss reference signal; an indicator of an SRS resource of each SRS resource set of the plurality of SRS resource sets; Precoding information and an indicator of the number of layers; The value of the higher layer parameter dmrs-SeqInitialization; or Value of the higher-level parameter antennaPort.

14. The wireless communication device according to claim 11, wherein: The downlink signaling configures the association between each of the multiple SRS resource sets and a corresponding one of the multiple values ​​of the first parameter.

15. The wireless communication device according to claim 11, wherein: When the CG is a type 2 CG, the multiple first parameters in the downlink signaling include at least one of the following: an index for closed loop power control; or Index of the higher layer parameter P0-PUSCH-AlphaSet.

16. A wireless communication node, comprising: At least one processor and a receiver, the at least one processor and the receiver being configured to: send downlink signaling to a wireless communication device, the downlink signaling indicating a single configuration authorization CG for uplink transmission; The downlink signaling includes a plurality of first parameters, each of which has a plurality of values ​​associated with a corresponding plurality of sounding reference signal SRS resource sets, and Each of the multiple first parameters has an association between each SRS resource set in the multiple SRS resource sets and a corresponding one of the multiple values ​​of the first parameter.

17. The wireless communication node according to claim 16, wherein: The downlink signaling includes radio resource control RRC signaling.

18. The wireless communication node according to claim 16, wherein: When the CG is a type 1 CG, the multiple first parameters in the downlink signaling include at least one of the following: Index of closed loop power control; Index of the higher layer parameter P0-PUSCH-AlphaSet; The index of the path loss reference signal; an indicator of an SRS resource of each SRS resource set of the plurality of SRS resource sets; Precoding information and an indicator of the number of layers; The value of the higher layer parameter dmrs-SeqInitialization; or Value of the higher-level parameter antennaPort.

19. The wireless communication node according to claim 16, wherein: The downlink signaling configures the association between each of the multiple SRS resource sets and a corresponding one of the multiple values ​​of the first parameter.

20. The wireless communication node of claim 16, wherein: When the CG is a type 2 CG, the multiple first parameters in the downlink signaling include at least one of the following: an index for closed loop power control; or Index of the higher layer parameter P0-PUSCH-AlphaSet.

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