Power control parameters for multi-TRP push repeats

Abstract

The present invention provides a method and apparatus for wireless communication using power control parameters for repeated transmission-receiver-point (mTRP) physical uplink shared channel (PUSCH) communication. [Solution] A method that can be performed by a user device (UE) includes receiving a sounding reference signal (SRS) configuration indicating at least a first sounding reference signal (SRS) resource set and at least a second SRS resource set; receiving downlink control information (DCI) scheduling a first set of one or more push repetitions for a first TRP and a second set of one or more push repetitions for a second TRP; and transmitting the first and second sets of push repetitions using at least one of a first set of default power control parameters or a second set of default power control parameters.

Description

[Technical Field]

[0001]

[0001] Aspects of the present disclosure relate to wireless communications, and more particularly to a technique for communicating using power control parameters for multiple transmitter-receiver point (TRP) physical uplink shared channel (PUSCH) repetitions. [Background technology]

[0002]

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, broadcast, or other similar types of services. These wireless communication systems can employ multiple access techniques that support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or other resources) among multiple users. Multiple access techniques can rely on, to name a few, code division, time division, frequency division orthogonal frequency division, single-carrier frequency division, or time division synchronous code division. These and other multiple access techniques are employed in various telecommunications standards to provide common protocols that enable various wireless devices to communicate at the municipal, national, regional, and even global levels.

[0003]

[0003] Wireless communication systems have made significant technological advancements over the years, but challenges still remain. For example, in complex and dynamic environments, signals between wireless transmitters and wireless receivers can still be attenuated or blocked, and established measurement and reporting mechanisms for various wireless channels, which are used to manage and optimize the use of finite wireless channel resources, are impaired. Therefore, wireless communication systems need to be further improved to overcome these various challenges. [Overview of the project]

[0004]

[0004] Certain embodiments may be implemented in a manner for wireless communications performed by a base station (BS). This manner generally includes transmitting a sounding reference signal (SRS) configuration indicating at least a first SRS resource set and at least a second SRS resource set to a user device (UE); transmitting downlink control information (DCI) that schedules a first set of one or more physical uplink shared channel (PUSCH) repeats to a first transmitter receiver point (TRP) and a second set of one or more PUSCH repeats to a second TRP; and processing at least one of a first set of PUSCH repeats based on a first set of default power control parameters, or a second set of PUSCH repeats based on a second set of default power control parameters.

[0005]

[0005] Certain embodiments may be implemented in a method for wireless communication performed by a user equipment (UE). This method generally includes receiving a sounding reference signal (SRS) configuration indicating at least a first SRS resource set and at least a second SRS resource set; receiving downlink control information (DCI) that schedules a first set of one or more physical uplink shared channel (PUSCH) repeats to a first transmitter receiver point (TRP) and a second set of one or more PUSCH repeats to a second TRP; and transmitting the first and second sets of PUSCH repeats using at least one of a first set of default power control parameters or a second set of default power control parameters.

[0006]

[0006] Other embodiments provide an apparatus operable, configured, or otherwise adapted to perform the methods described above and the methods described elsewhere herein; a non-temporary computer-readable medium having instructions, when executed by one or more processors of the apparatus, causing the apparatus to perform the methods described above and the methods described elsewhere herein; a computer program product embodied on a computer-readable storage medium having code for performing the methods described above and the methods described elsewhere herein; and an apparatus comprising means for performing the methods described above and the methods described elsewhere herein. For example, the apparatus may comprise a processing system, a device with a processing system, or processing systems cooperating on one or more networks.

[0007]

[0007] The following description and accompanying figures illustrate specific features for illustrative purposes.

[0008]

[0008] The accompanying drawings illustrate specific features of various embodiments described herein and should not be considered to limit the scope of this disclosure. [Brief explanation of the drawing]

[0009] [Figure 1]

[0009] A block diagram conceptually illustrating an exemplary wireless communication network. [Figure 2]

[0010] A block diagram conceptually illustrating exemplary configurations of a base station and user equipment. [Figure 3A]

[0011] A diagram illustrating various examples of data structures in wireless communication networks. [Figure 3B] A diagram illustrating various examples of data structures in wireless communication networks. [Figure 3C] A diagram illustrating various examples of data structures in wireless communication networks. [Figure 3D] A diagram illustrating various examples of data structures in wireless communication networks. [Figure 4]

[0012] Figure showing physical uplink shared channel power control information that can be provided to a user equipment. [Figure 5]

[0013] Figure showing an example of power boosting in a wireless communication network. [Figure 6]

[0014] Figure showing physical uplink shared channel power control information for configuring an open-loop power control parameter set indication field. [Figure 7A]

[0015] Figure showing an example of dynamic order switching related to the repetition of a physical uplink shared channel. [Figure 7B] Figure showing an example of dynamic order switching related to the repetition of a physical uplink shared channel. [Figure 7C] Figure showing an example of dynamic order switching related to the repetition of a physical uplink shared channel. [Figure 8]

[0016] Figure showing the mapping of a sounding reference signal resource indicator field to power control parameters for physical uplink shared channel repetition. [Figure 9]

[0017] Exemplary call flow diagram showing the operation between a base station and a user equipment for communicating using power control parameters for physical uplink shared channel repetition of multiple transmitter-receiver points. [Figure 10]

[0018] Flow diagram showing an example of the operation of wireless communication by a base station. [Figure 11]

[0019] Flow diagram showing an example of the operation of wireless communication by a user equipment. [Figure 12]

[0020] Figure showing the aspects of an exemplary communication device. [Figure 13] Figure showing the aspects of an exemplary communication device.

Mode for Carrying Out the Invention

[0010]

[0021] Aspects of this disclosure provide apparatus, methods, processing systems, and computer-readable media for communicating using power control parameters for repeated physical uplink sharing channels (PUSCH) of multiple transmitter-receiver points (mTRPs). Introduction to Wireless Communication Networks

[0022] Figure 1 shows an example of a wireless communication network 100 in which embodiments described herein may be implemented.

[0011]

[0023] Generally, a wireless communication network 100 includes base stations (BS) 102, user equipment (UE) 104, and one or more core networks such as an evolved packet core (EPC) 160 and a 5G core (5GC) network 190 that interoperate to provide wireless communication services.

[0012]

[0024] The base station 102 can provide an access point to the EPC160 and / or 5GC190 for user equipment 104 and can perform one or more of the following functions: transfer of user data, encryption and decryption of radio channels, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference adjustment, connection setup and release, load balancing, delivery of non-accessible stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracing, RAN information management (RIM), paging, positioning, and delivery of alert messages. The base station may include and / or be called a gNB, NodeB, eNB, ng-eNB (e.g., an eNB enhanced to provide connectivity to both EPC160 and 5GC190), access point, transceiver base station, radio base station, radio transceiver, transceiver function, transmitter receiver point (TRP), or transmit / receive point in various contexts.

[0013]

[0025] Base station 102 communicates wirelessly with UE 104 via communication link 120. Each base station 102 can provide communication coverage to its own geographical coverage area 110, which may overlap in some cases. For example, a small cell 102' (e.g., a low-power base station) may have a coverage area 110' that overlaps with the coverage area 110 of one or more macrocells (e.g., high-power base stations).

[0014]

[0026] The communication link 120 between the base station 102 and the UE 104 may include uplink (UL) (also called reverse link) transmission from the user equipment 104 to the base station 102 and / or downlink (DL) (also called forward link) transmission from the base station 102 to the user equipment 104. In various embodiments, the communication link 120 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity.

[0015]

[0027] Examples of UE104 include mobile phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players, cameras, game consoles, tablets, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or other similar devices. Some UE104 may be Internet of Things (IoT) devices (e.g., parking meters, gas pumps, toasters, vehicles, cardiac monitors, or other IoT devices), always-on (AON) devices, or edge processing devices. More commonly, UE104 may be called a station, mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handset, user agent, mobile client, or client.

[0016]

[0028] The wireless communication network 100 includes a power control component 199 which may be configured to perform one or more operations of Figure 9 or Figure 10, as well as other operations described herein for processing PUSCH iterations based on power control parameters for mTRP communication. The wireless communication network 100 further includes a power control component 198 which may be configured to perform one or more operations of Figure 9 or Figure 11, as well as other operations described herein for communicating using power control parameters for mTRP PUSCH iterations.

[0017]

[0029] Figure 2 shows exemplary configurations of a base station (BS) 102 and user equipment (UE) 104.

[0018]

[0030] Generally, the base station 102 includes various processors (e.g., 220, 230, 238, and 240), antennas 234a-t (collectively 234), transceivers 232a-t (collectively 232), which include modulators and demodulators, as well as other embodiments enabling wireless transmission of data (e.g., data source 212) and wireless reception of data (e.g., data sink 239). For example, the base station 102 can send and receive data between itself and user equipment 104.

[0019]

[0031] The base station 102 includes a controller / processor 240 which may be configured to implement various functions related to wireless communication. In the illustrated example, the controller / processor 240 includes a power control component 241 which may represent the power control component 199 in Figure 1. In particular, although shown as an embodiment of the controller / processor 240, the power control component 241 may be implemented as an addition to or replacement for various other embodiments of the base station 102 in other implementations. In some cases, the power control component 241 may also be configured to perform one or more operations in Figure 9 or Figure 10, as well as other operations described herein for processing PUSCH iterations based on power control parameters for mTRP communication.

[0020]

[0032] Generally, the user equipment 104 includes various processors (e.g., 258, 264, 266, and 280), antennas 252a-r (collectively 252), transceivers 254a-r (collectively 254), which include modulators and demodulators, as well as other embodiments that enable wireless transmission of data (e.g., source data 262) and wireless reception of data (e.g., data sink 260).

[0021]

[0033] The user device 102 includes a controller / processor 280 which may be configured to implement various functions related to wireless communication. In the illustrated example, the controller / processor 280 includes a power control component 281 which may represent the power control component 198 in Figure 1. In particular, although shown as one embodiment of the controller / processor 280, the power control component 281 may be implemented as an addition to or replacement for various other embodiments of the user device 104 in other implementations. In some cases, the power control component 281 may be configured to perform one or more operations in Figure 9 or Figure 11, as well as other operations described herein for communicating using power control parameters for mTRP PUSCH iterations.

[0022]

[0034] Figures 3A to 3D show the data structure of a wireless communication network, such as the wireless communication network 100 in Figure 1. In particular, Figure 3A is an example of a first subframe in a 5G (e.g., 5GNR) frame structure. Figure 3B is an example of a DL channel in a 5G subframe. Figure 3C is an example of a second subframe in a 5G frame structure. Figure 3D is an example of a UL channel in a 5G subframe.

[0023]

[0035] Further explanations regarding Figures 1, 2, and 3A–3D are provided later in this disclosure. PUSCH power control example

[0036] When communicating within a wireless communication system such as the wireless communication network 100 in Figure 1, uplink data can be sent by user equipment (UE) to a transmitter-receiver point (TRP) over the network (e.g., via a base station (BS)) or over a physical uplink shared channel (PUSCH). When transmitting over a PUSCH, the UE may first determine the transmit power to send uplink data over the PUSCH so that the uplink data can be correctly received by the base station. The UE may determine the transmit power based on PUSCH power control information received from the BS. The PUSCH power control information may include one or more power control parameters for determining the PUSCH transmit power, as described later. In some cases, the UE may determine the transmit power of the PUSCH using Equation 1 below.

[0024]

number

[0025]

[0037] In Equation 1, i is the transmission opportunity associated with PUSCH, j is the parameter set index, and q d l is the reference signal (RS) index for the active downlink (DL) bandwidth portion (BWP), l is the PUSCH power control state index, and P CMAX,f,c (i) is the maximum transmit power of PUSCH. The remainder of Equation 1 consists of various coefficients for open-loop power control and closed-loop power control. The open-loop power control coefficients are as follows:

[0026]

number

[0027] , 2 μ ,

[0028]

number

[0029] , α b,f,c (j), PLb,f,c (q d )、and Δ TF,b,f,c (i). Specifically,

[0030]

Number

[0031] is a coefficient for controlling the received power level (such as at a BS). 2 μ is the subcarrier spacing.

[0032]

Number

[0033] is the bandwidth of the PUSCH resource allocation represented by the number of resource blocks. α b,f,c (j) (e.g., "alpha") is the partial path loss compensation coefficient. PL b,f,c (q d ) is the path loss and is measured based on the PL-RS with index q d and Δ TF,b,f,c (i) is the transmission shaping / modulation and coding scheme. Further, f b,f,c (i, l) is the closed-loop PUSCH power control adjustment state and can be determined based on the transmission power control (TPC) command (e.g., received from a base station) having loop index 1.

[0034]

[0038] The open-loop and closed-loop power control coefficients can be determined based on one or more configured uplink (UL) power control parameters. For example, the first UL power control parameter, twoPUSCH-PC-AdjustmentStates, in the PUSCH power control information defines whether there are separate loops or states in the closed-loop power control. For example, if the parameter twoPUSCH-PC-AdjustmentStates is configured, there may be two separate states in the closed-loop power control. Otherwise, there may be only one state in the closed-loop power control. If two states are configured, TPC commands can be applied to the two different states / loops individually.

[0035]

[0039] Furthermore, a set of P0 and alpha (α) values ​​for open-loop power control may be constructed within the PUSCH power control information, p0-AlphaSet, of the Information Element (IE), where each member of the set has an identifier (ID) specified by the parameter p0-PUSCH-AlphaSetId, which can contain values ​​from 0 to 29. In addition, a list of path loss reference RS may be constructed, where each member of the list has an ID specified by the parameter push-PathlossReferenceRS-Id, which can contain values ​​from 0 to 3.

[0036]

[0040] Furthermore, a list of mappings from a Sounding Reference Signal Resource Indicator (SRI) to a PUSCH (SRI-PUSCH-Mapping) is provided, with each member of the list having an ID specified by the parameter sri-PUSCH-PowerControlId, which can contain values ​​from 0 to 15. Additionally, each member of the SRI-PUSCH mapping list may be configured as shown in Figure 4.

[0037]

[0041] For example, Figure 4 shows PUSCH power control information 400 that may be provided to the UE by the network. As shown in 402, the PUSCH power control information 400 may include a list of SRI-to-PUSCH mappings. For each member of the list, the PUSCH power control information 400 may include several SRI-PUSCH power control parameters, as shown in 404, which are included within the SRI-PUSCH power control information element 403. For example, each member of the list includes an ID parameter (e.g., sri-PUSCH-PowerControlId) to identify the SRI-PUSCH mapping. Furthermore, each member of the list includes parameters to identify the path loss RS (PLRS) (e.g., sri-PUSCH-PathlossReferenceRS-Id), P0 and alpha (e.g., sri-PUSCH-AlphaSetId), and the closed-loop index (e.g., sri-PUSCH-ClosedLoopIndex). In some cases, sri-PUSCH-PowerControlId can be used as the code point for the SRI field in the downlink control information (DCI) that schedules the PUSCH. If the value of the SRI field in the DCI that schedules the PUSCH is x, then the uplink power control parameters (e.g., PLRS, P0 and Alpha, closed-loop index) corresponding to sri-PUSCH-PowerControlId=x are used for the PUSCH transmission. In other words, the UE can examine the value of the SRI field in the DCI. The value of the SRI field can be obtained as the value of sri-PUSCH-PowerControlId, which shows the UE the corresponding PLRS, P0 and Alpha, and closed-loop index. In some cases, the SRI field can be up to 4 bits depending on the configuration (e.g., it can represent up to 16 values ​​of x). Power control parameters for power boosting

[0042] In some cases, the uplink power control parameter P0 may be modified to control the open-loop power of ultra-high reliability low-latency communications (URLLC) in the event of a collision between transmissions from two different UEs. For example, as shown in Figure 5, lower-priority traffic 502 (e.g., enhanced mobile broadband (eMBB) traffic over PUSCH) may be scheduled for the second UE 504 to transmit to BS506 before higher-priority traffic 508 (e.g., URLLC traffic over PUSCH) arrives at the first UE 510 to transmit to BS506, thus preventing resource allocation for this higher-priority traffic. In such a case, BS506 can boost the power of the higher-priority URLLC traffic by sending a DCI that schedules the first UE 510 with a modified P0, rather than preventing the scheduling of this higher-priority traffic. Boosting the power of the higher-priority traffic may help BS506 receive the higher-priority traffic, even considering collisions with the lower-priority traffic.

[0038]

[0043] The way in which this power boost (e.g., modified P0) is configured may depend on the DCI format and SRI. For example, DCI formats 0-1 or 0-2 may be configured using an open-loop power control (OLPC) parameter set indicator field. In some cases, the presence of this OLPC parameter set indicator field may depend on one or more parameters in the PUSCH power control information. Figure 6 provides an example of PUSCH power control information 600 in which an OLPC parameter set indicator field can be configured. For example, if the radio resource control (RRC) parameter p0-PUSCH-SetList-r16 is configured, as shown in 602, then the OLPC parameter set indicator field is present in the DCI. Otherwise, the field is 0 bits.

[0039]

[0044] Furthermore, if the SRI field is present in the DCI, the OLPC parameter set indicator field is 1 bit, and the RRC parameter p0-List-r16 contains one value (e.g., one P0 value), as shown in 604 of the PUSCH power control information 600. If the OLPC parameter set indicator field is set to 0, the SRI field value in the DCI is mapped to the sri-PUSCH-PowerControlId of the PUSCH power control information 400 from which P0 (and other uplink power control parameters) is determined. In this case, no power boost may occur. However, if the OLPC parameter set indicator field is set to 1, the SRI field value in the DCI is mapped to the p0-PUSCH-SetId-r16 shown in 606 of the PUSCH power control information 600 from which P0 is determined. The determined P0 may be the first value in P0-PUSCH-Set-r16, which has the p0-PUSCH-SetId-r16 value mapped to the SRI field value. This case corresponds to using different P0 values ​​for open-loop power control (e.g., power boosting).

[0040]

[0045] In some cases, if the SRI field is not present in the DCI, the OLPC parameter set indicator field may be 1 or 2 bits depending on the RRC parameter olpc-ParameterSet, which may be configurable separately for DCI formats 0-1 and 0-2, as shown in 608 and 610. Thus, if the OLPC parameter set indicator field is 0 or 00, P0 may be determined from the first P0-PUSCH-AlphaSet in the p0-AlphaSet of the PUSCH power control information 400. In this case, no power boost may occur. However, if the OLPC parameter set indicator field is 1 or 01, P0 may be determined from the first value in P0-PUSCH-Set-r16 having the lowest p0-PUSCH-SetID-r16 value (e.g., the first power boost value) as shown in 606. Furthermore, if the OLPC parameter set instruction field is 10, P0 may be determined from the second value in P0-PUSCH-Set-r16 having the lowest p0-PUSCH-SetID-r16 value (for example, the second power boost value when the field is 2 bits). Default power control parameters for PUSCH in single TRP communication

[0046] In 5G releases 15 and 16, there are various rules for defining default power control parameters (e.g., P0, alpha (α), PL-RS, and closed-loop index) for push transmissions in single TRP communication when there is no SRI field in DCI format other than DCI format 0_0, such as DCI format 0_1 ​​and 0_2. In some cases, these default power control parameters may also be for single transmitter-receiver point (TRP) scenarios (e.g., a UE is communicating with only one TRP).

[0041]

[0047] In some cases, the default values ​​for P0 and Alpha may be determined from the value of the first P0-PUSCH-AlphaSet in p0-AlphaSet. Furthermore, the default values ​​for PL-RS may be determined in a different way. For example, if enableDefaultBeamPL-ForSRS is provided to the UE and PUSCH-PathlossReferenceRS and PUSCH-PathlossReferenceRS-r16 are not provided, the UE will have the same RS resource index q as the SRS resource set containing the SRS resources associated with the PUSCH transmission. d If SRI-PUSCH-PowerControl is not provided to the UE, the UE will use RS resource index q, where the respective PUSCH-PathlossReferenceRS-Id value is equal to 0. d Determine the RS resource index q. In other cases, d This can be determined by the UE from the PUSCHPathlossReferenceRS-Id, which is mapped to sri-PUSCH-PowerControlId=0.

[0042]

[0048] Furthermore, the default value for the closed-loop index is l=0 if the PUSCH transmission is scheduled in DCI format which does not include the SRI field, or if SRI-PUSCH-PowerControl is not provided to the UE. Repeated PUSCH

[0049] One objective of Release 17 is to improve the reliability and robustness of PUSCH in multi-TRP (mTRP) and / or multi-panel scenarios. Multi-TRP is a technique that allows a UE to communicate with multiple TRPs. In some cases, if a PUSCH transmission by the UE to a first TRP / panel is blocked, the PUSCH transmission may be repeated and decoded by another TRP / panel, potentially increasing transmission diversity. These techniques may be known as PUSCH repetition.

[0043]

[0050] There are two types of PUSCH repeats: Type A and Type B. A Type A PUSCH repeat includes transmissions of different PUSCH transmit opportunities (i.e., repeats) corresponding to the same transport block (TB) in different slots. A Type B PUSCH repeat includes transmissions of different PUSCH transmit opportunities (i.e., repeats) corresponding to the same transport block (TB) in different mini-slots. The number of PUSCH repeats can be configured in the RRC or dynamically indicated through the Time Domain Resource Allocation (TDRA) field in the DCI. Furthermore, all PUSCH repeats are transmitted by the UE using the same transmit beam (e.g., the SRI field in the DCI applies to all repeats). For example, SRI is a field in the ULDCI that specifies the beam / power control of a PUSCH by pointing to one or more SRS resources in the SRS resource set.

[0044]

[0051] However, if different PUSCH repeats are intended to be received by different TRP / panels / antennas on the BS side, the same transmit beam may not be optimal for all repeats. Therefore, in some cases, a PUSCH repeat may belong to two SRS resource sets, each with different corresponding transmit beams and power control parameters. To achieve this, two sets of PUSCH repeats may correspond to two SRS resource sets. For example, DCI may represent two sets of transmit beams and two sets of power control parameters by indicating one or more SRS resources within each of the two SRS resource sets. Dynamic Order Switching

[0052] In some cases, the order in which PUSCH iterations are sent to specific TRPs may differ for each UE. For example, in some cases, the first UE may be configured to send first to a particular TRP, while the second UE may be configured to send first to another TRP and then to a specific TRP. Such configurations can cause scheduling problems for the various UEs. Figures 7A and 7B illustrate this scheduling problem.

[0045]

[0053] For example, as shown in Figure 7A, a first UE702 (e.g., UE1) may be configured to communicate with a first TRP704 (e.g., TRP1). Furthermore, a second UE706 may be configured to communicate with the first TRP704 and a second TRP708. The first UE702 may be configured to communicate with the first TRP704 (e.g., PUSCH transmit) using a first transmit beam and a first set of power control parameters associated with the first UE702. Similarly, the second UE706 may be configured to communicate with the first TRP704 (e.g., PUSCH transmit) using a first transmit beam and a first set of power control parameters associated with the second UE706. Furthermore, the second UE706 may be configured to communicate with the second TRP708 (e.g., PUSCH transmit) using a second transmit beam and a second set of power control parameters associated with the second UE706.

[0046]

[0054] In some cases, the first UE702 may be scheduled to first send the PUSCH repetition to the first TRP704, while the second UE704 is scheduled to first send the PUSCH repetition to the second TRP708 (for example, while the first UE702 is sending the PUSCH repetition to the first TRP704), which can cause scheduling problems on the first TRP704, as shown in Figure 7B. For example, as shown in Figure 7B, the first UE702 is scheduled to send the first PUSCH repetition to the first TRP704 in slot #1 and the second PUSCH repetition to the first TRP704 in slot #3, using a first set of first transmit beam and power control parameters. Furthermore, as shown in Figure 7B, the second UE706 is scheduled to transmit the first PUSCH repetition to the second TRP710 in slot #1 using a second set of second transmit beam and power control parameters, transmit the second PUSCH repetition to the first TRP704 in slot #2 using a first set of first transmit beam and power control parameters, transmit the third PUSCH repetition to the second TRP710 in slot #3, and transmit the fourth PUSCH repetition to the first TRP704 in slot #4.

[0047]

[0055] As can be seen in Figure 7, this method of scheduling PUSCH repetitions results in a periodic PUSCH scheduling pattern between UEs, where PUSCH repetition transmissions to the first TRP704 (e.g., using the first transmit beam and a first set of power control parameters) occur in all slots. This periodic PUSCH scheduling pattern can be undesirable because it may prevent the first TRP704 from scheduling a third UE in slots #2 and #4 using other transmit beams. To solve this problem, dynamic reordering can be used, which allows the order in which UEs transmit PUSCH repetitions to specific TRPs to be dynamically switched.

[0048]

[0056] Figure 7C illustrates dynamic reordering. For example, as in Figure 7B, in Figure 7C, the first UE702 is scheduled to send a first PUSCH repetition to the first TRP704 in slot #1 and a second PUSCH repetition to the first TRP704 in slot #3, using a first set of first transmit beam and power control parameters. However, unlike in Figure 7B, dynamic reordering may be applied to the second UE706 to switch the order in which it sends PUSCH repetitions to the first TRP704 and the second TRP708. For example, after dynamic reordering is configured, the second UE706 is scheduled to send a first PUSCH repetition to the first TRP704 in slot #1 using a first set of first transmit beam and power control parameters, and a second PUSCH repetition to the second TRP710 in slot #2, using a second set of second transmit beam and power control parameters, and so on. Therefore, repeated push transmissions to the first UE702 and the second UE706 may occur within the same slot, preventing a periodic push repetition pattern and allowing the first TRP704 to use other transmit beams to schedule the third UE in slots #2 and #4. Aspects related to power control parameters for multi-TRP push repetitions

[0057] In 5G Release 17, power control of mTRP PUSCH involves the use of two sets of power control parameters for two different TRPs. In such cases, two SRI fields in DCI (e.g., indicating two SRS resource sets) may be used, and each code point in the two SRI fields may be mapped to one set of power control parameters (e.g., one SRI-PUSCH-PowerControl). In other words, each code point in the two SRI fields corresponds to P0, alpha, PL-RS resource index (q d ), and a set of power control parameters for repeated PUSCH transmission, including the closed-loop index, can be mapped to this set.

[0049]

[0058] Figure 8 shows the mapping of two SRI fields to separate sets of power control parameters for an mTRP configuration for repeated push transmissions. For example, as shown in Figure 8, a UE (e.g., UE104 in Figure 1) can receive DCI802. DCI802 may be in DCI format 0_1 ​​or 0_2 and may include a first SRI field 804 and a second SRI field 806. The first SRI field 804 can be mapped to a first set 808 of uplink power control parameters for the first TRP for repeated push transmissions to the first TRP, as described above. Similarly, the second SRI field 806 can be mapped to a second set 810 of uplink power control parameters for the second TRP for repeated push transmissions to the second TRP. As shown, the first set of uplink power control parameters 808 may include a first P0, a first alpha, a first PL-RS resource index, and a first closed-loop index, as shown in 812, each of which may be identified based on the value of the first SRI field 804. Similarly, the second set of uplink power control parameters 810 may include a second P0, a second alpha, a second PL-RS resource index, and a second closed-loop index, as shown in 814, each of which may be identified based on the value of the second SRI field 806.

[0050]

[0059] However, if one or both of the SRS resource sets indicated by the SRI contain only one SRS resource, the DCI may lack an SRI field, which can cause problems in determining which power control parameters to use for push transmissions. For example, if one or both of the SRS resource sets contain only one SRS resource, the DCI 802 may lack a first SRI field 804 and / or a second SRI field 806. Therefore, the UE will not have an SRI value to determine the uplink power control parameters for push repetition transmissions that depend on the SRI value. In other words, the UE cannot determine the correct SRI-PUSCH-PowerControl that indicates the uplink power control parameters without using the SRI. Consequently, the UE may not be able to determine the transmit power for push repetition transmissions to one or more TRPs in an mTRP configuration.

[0051]

[0060] Accordingly, aspects of the present disclosure provide techniques that help mitigate the problems in determining uplink power control parameters for push transmissions in an mTRP configuration when the DCI (e.g., the one scheduling the push repetitions) does not have an SRI field (e.g., the corresponding SRS resource set contains only one SRS resource). For example, aspects of the present disclosure provide techniques for determining one or more default sets of power control parameters to use for transmitting push repetitions to multiple TRPs when the DCI scheduling the push repetitions does not have an SRI field. Example call flow demonstrating communication operation using mTRP PUSCH repetition power control parameters.

[0061] Figure 9 is a call flow diagram illustrating an example operation 900 between BS902 and UE904 for communication using power control parameters for mTRP push repetitions. In some cases, BS702 may be an example of BS102 in the wireless communication network 100 shown in Figure 1, and may include or be associated with multiple TRPs, such as a first TRP and / or a second TRP. Furthermore, UE704 may be an example of UE104 shown in Figure 1, and may be configured to communicate with multiple TRPs. Furthermore, as shown, a Uu interface may be established to facilitate communication between BS702 and UE704, although in other embodiments, different types of interfaces may be used.

[0052]

[0062] As illustrated, operation 900 shown in Figure 9 begins in 910 with BS902 transmitting a Sounding Reference Signal (SRS) configuration to UE904 that indicates at least a first SRS resource set and at least a second SRS resource set. In some cases, BS902 may transmit the SRS configuration to UE904 using at least one of the first TRP or the second TRP.

[0053]

[0063] At 920, BS902 transmits Downlink Control Information (DCI) to UE904, which schedules a first set of one or more physical uplink shared channel (PUSCH) repetitions for a first TRP and a second set of one or more PUSCH repetitions for a second TRP. BS902 may transmit the DCI to UE904 using at least one of the first or second TRPs.

[0054]

[0064] Subsequently, as shown in 930, the UE904 transmits the first and second sets of PUSCH iterations using at least one of the first set of default power control parameters or the second set of default power control parameters. In some cases, the first and second sets of default power control parameters include one or more of the following: a first parameter for controlling the received power level, a second parameter for partial path loss compensation, a third parameter indicating a reference signal (RS) resource index for measuring path loss, and a closed-loop index.

[0055]

[0065] As shown in the figure, BS902 receives first and second sets of PUSCH repetitions at 930 (e.g., via the first and second TRPs), and may then process at least one of the first set of PUSCH repetitions based on the first set of default power control parameters, or the second set of PUSCH repetitions based on the second set of default power control parameters.

[0056]

[0066] In some cases, in an SRS configuration, at least one of the first or second SRS resource sets received by UE904 at 910 may consist of only one SRS resource. In such cases, the DCI received by UE904 at 920 may have DCI format 0_1 ​​or 0_2 and may lack a Sounding Reference Signal Resource Indicator (SRI) field, which would allow UE904 to determine the first and second sets of power control parameters using the conventional method described above. Therefore, if the UE is configured for multi-TRP communication (e.g., communication to a first TRP and a second TRP), and UE904 receives a DCI without an SRI field, UE904 can determine the first and second sets of power control parameters according to different options. Aspects relating to the determination of default power control parameters when the SRI field is not provided and the SRI PUSCH power control field has an ID of 0.

[0067] In some cases, when the DCI does not have an SRI field, and a first SRI PUSCH power control information element with an ID equal to 0 (e.g., sri-PUSCH-PowerControlId=0) is associated with a first SRS resource set, and a second SRI PUSCH power control information element with an ID equal to 0 (e.g., sri-PUSCH-PowerControlId=0) is associated with a second SRS resource set, the UE904 can use the first option to determine the first and second sets of power control parameters.

[0057]

[0068] In some cases, a first set of default power control parameters may be determined by UE904 based on a mapping to a first SRI PUSCH power control information element with an ID equal to 0. For example, UE904 may determine a first P0 and a first alpha, a first PL-RS resource index, and a first closed-loop index from sri-P0-PUSCH-AlphaSetId, sri-PUSCH-PathlossReferenceRS-Id, and sri-PUSCH-ClosedLoopIndex, respectively, which are mapped to a first sri-PUSCH-PowerControlId=0 associated with a first SRS resource set.

[0058]

[0069] For example, UE904 can receive PUSCH power control information from BS902, such as the PUSCH power control information shown in 812 of Figure 8. This includes power control parameters sri-P0-PUSCH-AlphaSetId, sri-PUSCH-PathlossReferenceRS-Id, and sri-PUSCH-ClosedLoopIndex. UE904 can then determine the first P0 and alpha power control parameters from sri-P0-PUSCH-AlphaSetId in the PUSCH power control information, which is mapped to a first SRI PUSCH power control information element having an ID equal to 0 (e.g., first sri-PUSCH-PowerControlId=0). Similarly, UE904 can determine a first PL-RS resource index power control parameter from sri-PUSCH-PathlossReferenceRS-Id in the PUSCH power control information, which is mapped to a first SRI PUSCH power control information element whose ID is equal to 0 (e.g., first sri-PUSCH-PowerControlId=0). Furthermore, UE904 may determine a first closed-loop index power control parameter from sri-PUSCH-ClosedLoopIndex in the PUSCH power control information, which is mapped to a first SRI PUSCH power control information element whose ID is equal to 0 (e.g., first sri-PUSCH-PowerControlId=0).

[0059]

[0070] Similarly, a second set of default power control parameters may be determined by UE904 based on mappings to second SRI PUSCH power control information elements having an ID equal to 0. For example, UE904 may determine a second P0 and a second alpha, a second PL-RS resource index, and a second closed-loop index from sri-P0-PUSCH-AlphaSetId, sri-PUSCH-PathlossReferenceRS-Id, and sri-PUSCH-ClosedLoopIndex, respectively, which are mapped to a second sri-PUSCH-PowerControlId=0 associated with a second SRS resource set. For example, UE904 may receive PUSCH power control information from BS902, such as the PUSCH power control information shown in 814 of Figure 8. This includes the power control parameters sri-P0-PUSCH-AlphaSetId, sri-PUSCH-PathlossReferenceRS-Id, and sri-PUSCH-ClosedLoopIndex, from which the UE904 can determine a second P0, a second alpha, a second PL-RS resource index, and a second closed-loop index.

[0060]

[0071] In some cases, whether to use a first set of default power control parameters, a second set of default power control parameters, or both sets of default power control parameters may depend on a field in the DCI for dynamic reordering. For example, as mentioned above, in some cases, the BS (e.g., BS902) may dynamically reorder the order in which the UE (e.g., UE904) sends PUSCH repetitions to the TRP. In other words, the field in the DCI indicates the dynamic reordering of which TRP is targeted by which PUSCH repetition. In such a case, the UE904 can decide, based on the field in the DCI, whether to use a first set of default power control parameters, a second set of default power control parameters, or both sets of default power control parameters.

[0061]

[0072] For example, in some cases, BS902 may provide instructions within DCI that instruct the UE to switch the order of PUSCH repetitions in one or more slots, such as switching the PUSCH repetition transmission in the first slot from the second TRP to the first TRP. In such a case, instead of UE904 using a second set of default power control parameters to send the PUSCH repetition to the second TRP in the first slot, UE904 may use a first set of default power control parameters (for example, based on the dynamic reordering instruction in DCI) to send the PUSCH repetition to the first TRP in the first slot.

[0062]

[0073] In some cases, one or more power control parameters (e.g., P0, Alpha, PL-RS resource index, closed-loop index) within the first and second sets of default power control parameters may be updated by BS902. For example, as shown in 940 of Figure 9, BS902 may optionally send a media access control element (MAC-CE) to UE904, which includes at least one updated power control parameter from either the first set of default power control parameters or the second set of default power control parameters. For example, the updated power control parameter may include a PL-RS resource index associated with at least one of the first set of default power control parameters (e.g., associated with a first sri-PUSCH-PowerControlId=0) or the second set of default power control parameters (e.g., associated with a second sri-PUSCH-PowerControlId=0).

[0063]

[0074] In certain cases, the technique for determining the first and second sets of default power control parameters according to the first option may also be applied to modifying the default power control parameters for power boosting. For example, as discussed above with respect to Figure 6, in some cases power boosting can be performed by changing an open-loop power control parameter such as P0. Such modifications may be indicated based on an open-loop power control (OLPC) parameter set indicator field in the PUSCH power control information, such as the PUSCH power control information 600. In some cases, a first OLPC parameter set indicator field may be associated with a first set of default power control parameters, and a second OLPC parameter set indicator field may be associated with a second set of default power control parameters.

[0064]

[0075] For example, if the value of the first OLPC parameter set instruction field is set to a specific value, a value for the first parameter (e.g., P0) for controlling the received power level in the first set of default power control parameters is assumed. Furthermore, if the value of the second OLPC parameter set instruction field is set to a specific value, a value for the first parameter for controlling the received power level in the second set of default power control parameters is assumed. More specifically, for example, if the value of the first OLPC parameter set instruction field is set to 1, the first p0 is determined from the first P0-PUSCH-Set-r16 where the p0-PUSCH-SetID-r16 value is equal to 0 (i.e., p0-PUSCH-SetId-r16=0) (e.g., power boost). Furthermore, if the value of the second OLPC parameter set instruction field is set to 1, the second p0 is determined from the first or second P0-PUSCH-Set-r16 whose p0-PUSCH-SetID-r16 value is equal to 0 (i.e., p0-PUSCH-SetId-r16=0) (e.g., power boost). Aspects relating to the determination of default power control parameters when the SRI field is not provided or when the SRI PUSCH power control ID field is provided.

[0076] In some cases, if the DCI received by the UE904 at 920 does not have an SRI field and the SRI PUSCH power control ID field is not provided to the UE904, the UE904 may use a second option to determine the first and second sets of power control parameters. In such cases, the UE904 may determine the parameters P0, alpha, PL-RS resource index, and closed-loop index in different ways.

[0065]

[0077] For example, in some cases, the UE904 can determine a first P0 and a first alpha for a first set of default power control parameters that maps to the lowest set ID. More specifically, the first P0 and first alpha may be determined from the value of P0-PUSCH-AlphaSet that has the lowest set ID (e.g., the lowest P0-PUSCH-AlphaSetId) among the p0-AlphaSets of the PUSCH power control information. Similarly, the UE904 can determine a second P0 and a second alpha for a second set of default power control parameters that maps to a second lowest set ID. More specifically, the second P0 and second alpha may be determined from the value of P0-PUSCH-AlphaSet that has the second lowest set ID (e.g., the second lowest P0-PUSCH-AlphaSetId) among the p0-AlphaSets of the PUSCH power control information.

[0066]

[0078] In other cases, the UE904 can determine a first P0 and a first alpha for a first set of default power control parameters that maps to the highest set ID. More specifically, the first P0 and first alpha may be determined from the value of P0-PUSCH-AlphaSet that has the highest set ID (e.g., the highest P0-PUSCH-AlphaSetId) among the p0-AlphaSets of the PUSCH power control information. Similarly, the UE904 can determine a second P0 and a second alpha for a second set of default power control parameters that maps to a second highest set ID. More specifically, the second P0 and second alpha may be determined from the value of P0-PUSCH-AlphaSet that has the second highest set ID (e.g., the second lowest P0-PUSCH-AlphaSetId) among the p0-AlphaSets of the PUSCH power control information.

[0067]

[0079] As described above, UE904 can determine the PL-RS resource index for the first and second sets of default power control parameters in different ways. For example, in some cases UE904 may be enabled for the default beam for SRS path loss (e.g., enableDefaultBeamPL-ForSRS is configured) and PUSCH path loss reference RS is not provided (e.g., PUSCH-PathlossReferenceRS and PUSCH-PathlossReferenceRS-r16 are not configured). In such cases UE904 can determine a first PL-RS resource index associated with a first SRS resource set for a first set of default power control parameters, and a second PL-RS resource index associated with a second SRS resource set for a second set of default power control parameters. More specifically, for example UE904 may determine a first PL-RS resource index q as the first SRS resource set associated with the first set of repetitions transmitted by UE904 in Figure 930. d The second PL-RS resource index q' can be used as the second SRS resource set associated with the second repeating set sent by UE904 in Figure 930. d You can use it.

[0068]

[0080] In other cases, when the UE904 is not provided with an SRI PUSCH power control setting (e.g., the SRI-PUSCH-PowerControl information element 403 shown in Figure 4), the UE904 can determine a first PL-RS resource index for a first set of default power control parameters based on a PUSCH path loss reference RS ID value of 0. Similarly, the UE904 can determine a second PL-RS resource index for a second set of default power control parameters based on a single PUSCH path loss reference RS ID value. More specifically, if the SRI-PUSCH-PowerControl information element is not provided to the UE904, the UE904 will determine a first RS resource index q where the respective PUSCH-PathlossReferenceRS-Id value is equal to 0. d Determine the second RS resource index q' whose respective PUSCH-PathlossReferenceRS-Id value is equal to 1. d To decide.

[0069]

[0081] Similarly, the UE904 can determine the closed-loop indices for the first and second sets of default power control parameters in different ways. For example, if the UE is not configured with two PUSCH-PC-AdjustmentStates, both the first and second sets of default power control parameters will have a closed-loop index of 0. More specifically, if the UE904 is not configured with two PUSCH-PC-AdjustmentStates in the PUSCH power control information received from the BS902, l=0 may be used as the closed-loop index for the first and second sets of default power control parameters.

[0070]

[0082] In other cases, when UE904 is configured with two PUSCH power control adjustment states, the first set of default power control parameters may include a closed-loop index of 0, and the second set of default power control parameters may include a closed-loop index of 1. More specifically, when UE904 is configured with two PUSCH-PC-AdjustmentStates within the PUSCH power control information, l=0 may be used as the closed-loop index for the first set of default power control parameters for the first set of PUSCH iterations (associated with the first SRS resource set), and the closed-loop index l=1 may be used for the second set of default power control parameters for the second set of PUSCH iterations (associated with the second SRS resource set).

[0071]

[0083] Furthermore, as with the first option for determining the first and second sets of default power control parameters, the second option for determining the first and second sets of default power control parameters may also depend on fields in the DCI for dynamic reordering. For example, as mentioned above, in some cases the BS (e.g., BS902) may dynamically reorder the order in which the UE (e.g., UE904) sends PUSCH repetitions to the TRP. In other words, the fields in the DCI indicate the dynamic reordering of which TRP is targeted by which PUSCH repetition. In such a case, the UE904 may decide, based on the fields in the DCI, whether to use the first set of default power control parameters, the second set of default power control parameters, or both the first and second sets of default power control parameters.

[0072]

[0084] For example, in some cases, BS902 may provide instructions within DCI that instruct the UE to switch the order of PUSCH repetitions in one or more slots, such as switching the PUSCH repetition transmission in the first slot from the second TRP to the first TRP. In such a case, instead of UE904 using a second set of default power control parameters to send the PUSCH repetition to the second TRP in the first slot, UE904 may use a first set of default power control parameters (for example, based on the dynamic reordering instruction in DCI) to send the PUSCH repetition to the first TRP in the first slot. Example of a communication method using mTRP PUSCH repetition power control parameters

[0085] Figure 10 is a flowchart of a wireless communication operation example 1000. Operation 1000 may be performed by a BS (e.g., BS102 in the wireless communication network 100 in Figure 1) to process PUSCH iterations based on power control parameters for mTRP communication. Operation 1000 may be implemented as a software component running and operated on one or more processors (e.g., the controller / processor 240 in Figure 2). Furthermore, the transmission and reception of signals by the BS in operation 1000 may be enabled by one or more antennas (e.g., the antenna 234 in Figure 2). In certain embodiments, the transmission and / or reception of signals by the BS may be implemented via a bus interface of one or more processors (e.g., the controller / processor 240 including a power control component 241) that acquire and / or output signals.

[0073]

[0086] Operation 1000 begins at 1010 by transmitting a Sounding Reference Signal (SRS) configuration to the user equipment (UE) that indicates at least a first SRS resource set and at least a second SRS resource set.

[0074]

[0087] In block 1020, BS transmits downlink control information (DCI) that schedules one or more physical uplink shared channel (PUSCH) repetitions to a first transmitter receiver point (TRP) and one or more PUSCH repetitions to a second TRP.

[0075]

[0088] In block 1030, BS processes at least one of either a first set of PUSCH iterations based on a first set of default power control parameters, or a second set of PUSCH iterations based on a second set of default power control parameters.

[0076]

[0089] In some cases, operation 1000 may further include providing an indication in a field within the DCI whether to use a first set of default power control parameters, a second set of default power control parameters, or both the first and second sets of default power control parameters. In some cases, the field within the DCI may indicate a dynamic switching of the order in which each TRP is targeted by each PUSCH iteration.

[0077]

[0090] In some cases, the first and second sets of default power control parameters include one or more of the following: a first parameter for controlling the received power level, a second parameter for partial path loss compensation, a third parameter indicating a reference signal (RS) resource index for measuring path loss, and a closed-loop index.

[0078]

[0091] In some cases, at least one of the SRS resource sets consists of a single SRS resource. Also, DCI does not have an SRS Resource Indicator (SRI) field.

[0079]

[0092] In some cases, the first SRS resource set is associated with a first SRI PUSCH power control information element having an ID equal to 0, and the second SRS resource set is associated with a second SRI PUSCH power control information element having an ID equal to 0.

[0080]

[0093] In some cases, the first set of default power control parameters is based on a mapping to a first SRI PUSCH power control information element with an ID equal to 0, and the second set of default power control parameters is based on a mapping to a second SRI PUSCH power control information element with an ID equal to 0.

[0081]

[0094] In some cases, operation 1000 further includes transmitting a media access control (MAC) control element (MAC-CE) indicating an update to a path loss reference signal associated with at least one of a first SRI PUSCH power control information element with an ID equal to 0, or a second SRI PUSCH power control information element with an ID equal to 0.

[0082]

[0095] In some cases, if the value of the first open-loop power control (OLPC) parameter set indicator field is set to a specific value, the first parameter for controlling the received power level in the first set of default power control parameters will have a first value. Furthermore, in some cases, if the value of the second OLPC parameter set indicator field is set to a specific value, the second parameter for controlling the received power level in the second set of default power control parameters will have a second value.

[0083]

[0096] In some cases, at least one UE may not have an SRI push power control setting, or the DCI may not have an SRS resource indicator (SRI) field.

[0084]

[0097] In some cases, the first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the lowest set ID, and the second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the second lowest (second lowest) set ID.

[0085]

[0098] In some cases, the first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the highest set ID, and the second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the second highest (second highest) set ID.

[0086]

[0099] In some cases, if a default beam is configured for SRS path loss and a PUSCH path loss reference RS is not provided to the UE: a first set of default power control parameters comprises parameters indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index used for a first SRS resource set, and a second set of default power control parameters comprises parameters indicating an RS resource index for measuring path loss associated with a second RS resource index used for a second SRS resource set.

[0087]

[0100] In some cases, if SRI PUSCH power control settings are not provided to the UE: a first set of default power control parameters includes a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index based on a PUSCH path loss reference RS ID value of 0, and a second set of default power control parameters includes a parameter indicating a single RS resource index for measuring path loss associated with a second RS resource index based on a single PUSCH path loss reference RS ID value.

[0088]

[0101] In some cases, if two PUSCH power control adjustment states are not configured in the UE, both the first and second sets of default power control parameters will contain a closed-loop index of 0.

[0089]

[0102] In some cases, if two PUSCH power control adjustment states are configured for a UE, the first set of default power control parameters includes a closed-loop index of 0, and the second set of default power control parameters includes a closed-loop index of 1.

[0090]

[0103] Figure 11 is a flowchart illustrating an example of wireless communication operation 1100 according to a particular aspect of the present disclosure. Operation 1100 may be performed by a UE (e.g., UE 104 in the wireless communication network 100 in Figure 1) that communicates using power control parameters for mTRP PUSCH repetitions. Operation 1100 may complement operation 1000 performed by a BS. Operation 1100 may be implemented as a software component that runs and operates on one or more processors (e.g., the controller / processor 280 in Figure 2). Furthermore, the transmission and reception of signals by the UE in operation 1100 may be enabled by one or more antennas (e.g., the antenna 252 in Figure 2). In a particular aspect, the transmission and / or reception of signals by the UE may be implemented via a bus interface of one or more processors (e.g., the controller / processor 280 including a power control component 281) that acquires and / or outputs signals.

[0091]

[0104] Operation 1100 begins in block 1110 with receiving a sounding reference signal (SRS) configuration indicating at least a first SRS resource set and at least a second SRS resource set.

[0092]

[0105] In block 1120, the UE receives downlink control information (DCI) that schedules a first set of one or more physical uplink shared channel (PUSCH) repetitions to a first transmitter-receiver point (TRP) and a second set of one or more PUSCH repetitions to a second TRP.

[0093]

[0106] In block 1130, the UE sends the first and second sets of PUSCH iterations using at least one of the first set of default power control parameters or the second set of default power control parameters.

[0094]

[0107] In some cases, operation 1100 may further include determining, based on a field in DCI, whether to use a first set of default power control parameters, a second set of default power control parameters, or both the first and second sets of default power control parameters. In some cases, the field in DCI indicates a dynamic switching of the order in which TRPs are targeted by which PUSCH iterations.

[0095]

[0108] In some cases, the first and second sets of default power control parameters include one or more of the following: a first parameter for controlling the received power level, a second parameter for partial path loss compensation, a third parameter indicating a reference signal (RS) resource index for measuring path loss, and a closed-loop index.

[0096]

[0109] In some cases, at least one of the SRS resource sets consists of a single SRS resource, and the DCI does not have an SRS Resource Indicator (SRI) field.

[0097]

[0110] In some cases, the first SRS resource set is associated with a first SRI PUSCH power control information element having an ID equal to 0, and the second SRS resource set is associated with a second SRI PUSCH power control information element having an ID equal to 0.

[0098]

[0111] In some cases, a first set of default power control parameters is determined based on a mapping to a first SRI PUSCH power control information element with an ID equal to 0, and a second set of default power control parameters is determined based on a mapping to a second SRI PUSCH power control information element with an ID equal to 0.

[0099]

[0112] In some cases, operation 1100 may further include receiving a media access control (MAC) control element (MAC-CE) indicating an update to a path loss reference signal associated with at least one of a first SRI PUSCH power control information element with an ID equal to 0, or a second SRI PUSCH power control information element with an ID equal to 0.

[0100]

[0113] In some cases, if the value of the first open-loop power control (OLPC) parameter set indicator field is set to a specific value, the first parameter for controlling the received power level in the first set of default power control parameters is assumed to have a first value. Furthermore, in some cases, if the value of the second OLPC parameter set indicator field is set to a specific value, the second parameter for controlling the received power level in the second set of default power control parameters is assumed to have a second value.

[0101]

[0114] In some cases, at least one UE may not have an SRI push power control setting, or the DCI may not have an SRS resource indicator (SRI) field.

[0102]

[0115] In such a case, the first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the lowest set ID, and the second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the second lowest (second lowest) set ID.

[0103]

[0116] Furthermore, in some cases, the first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the highest set ID, and the second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the second highest (second highest) set ID.

[0104]

[0117] In some cases, the UE is enabled with a default beam for pass loss for SRS and a PUSCH path loss reference RS is not provided: a first set of default power control parameters comprises parameters indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index used for a first SRS resource set, and a second set of default power control parameters comprises parameters indicating an RS resource index for measuring path loss associated with a second RS resource index used for a second SRS resource set.

[0105]

[0118] In some cases, if the UE does not have SRI PUSCH power control settings: a first set of default power control parameters includes a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index determined based on a PUSCH path loss reference RS ID value of 0, and a second set of default power control parameters includes a parameter indicating an RS resource index for measuring path loss associated with a second RS resource index determined based on a PUSCH path loss reference RS ID value of 1.

[0106]

[0119] In some cases, if the UE is not configured with two push power control adjustment states, both the first and second sets of default power control parameters will contain a closed-loop index of 0.

[0107]

[0120] In some cases, if the UE is configured with two PUSCH power control adjustment states, the first set of default power control parameters will include a closed-loop index of 0, and the second set of default power control parameters will include a closed-loop index of 1. Examples of wireless communication devices

[0121] Figure 12 shows an exemplary communications device 1200, including various components that are operable, configured, or adapted to perform operations for the technologies disclosed herein, such as the operations illustrated and described with respect to Figures 9 and 10. In some examples, the communications device 1200 may be a base station 102, for example, as described with respect to Figures 1 and 2.

[0108]

[0122] The communication device 1200 includes a processing system 1202 coupled to a transceiver 1208 (e.g., a transmitter and / or receiver). The transceiver 1208 is configured to transmit (or send) and receive various signals, such as those described herein, to and from the communication device 1200 via an antenna 1210. The processing system 1202 may be configured to perform processing functions for the communication device 1200, including processing signals received and / or transmitted by the communication device 1200.

[0109]

[0123] The processing system 1202 includes one or more processors 1220 coupled to a computer-readable medium / memory 1230 via a bus 1206. In a particular embodiment, the computer-readable medium / memory 1230 is configured to store instructions (e.g., computer-executable code) and, when executed by one or more processors 1220, causes one or more processors 1220 to perform the operations shown in Figures 9 and 10 or other operations to perform various techniques described herein for processing PUSCH iterations based on power control parameters for mTRP communication.

[0110]

[0124] In the illustrated example, the computer-readable medium / memory 1230 stores the receiving code 1231, the transmitting code 1232, and the processing code 1233.

[0111]

[0125] In the illustrated example, one or more processors 1220 include circuits configured to implement code stored in a computer-readable medium / memory 1230, including a receiving circuit 1221, a transmitting circuit 1222, and a processing circuit 1223.

[0112]

[0126] Various components of the communication device 1200, including with respect to Figures 9 and 10, can provide means for carrying out the methods described herein.

[0113]

[0127] In some examples, the means for transmitting or sending (or for outputting for transmission) may include the transceiver 232 and / or antenna 234 of the base station 102 shown in Figure 2 and / or the transceiver 1208 and antenna 1210 of the communication device 1200 shown in Figure 12.

[0114]

[0128] In some examples, the means of receiving (or acquiring) may include the transceiver 232 and / or antenna 234 of the base station shown in Figure 2 and / or the transceiver 1208 and antenna 1210 of the communication device 1200 in Figure 12.

[0115]

[0129] In some examples, the processing means may include various processing system components such as: one or more processors 1220 in Figure 12, an embodiment of the base station 102 shown in Figure 2, which includes a receiving processor 238, a transmitting processor 220, a TXMIMO processor 230, and / or a controller / processor 240 (including a power control component 241).

[0116]

[0130] In particular, Figure 12 is just one example, and many other examples and configurations of the communication device 1200 are possible.

[0117]

[0131] Figure 13 shows an exemplary communication device 1300, which includes various components that are operable, configured or adapted to perform the operations of the technology disclosed herein, such as the operations illustrated and described with respect to Figures 9 and 11. In some examples, the communication device 1300 may be a user device 104, for example, as described with respect to Figures 1 and 2.

[0118]

[0132] The communication device 1300 includes a processing system 1302 coupled to a transceiver 1308 (e.g., a transmitter and / or receiver). The transceiver 1308 is configured to transmit (or send) and receive signals, such as various signals as described herein, to and from the communication device 1300 via an antenna 1310. The processing system 1302 may be configured to perform processing functions for the communication device 1300, including processing signals received and / or transmitted by the communication device 1300.

[0119]

[0133] The processing system 1302 includes one or more processors 1320 coupled to a computer-readable medium / memory 1330 via a bus 1306. In a particular embodiment, the computer-readable medium / memory 1330 is configured to store instructions (e.g., computer executable code) and, when executed by one or more processors 1320, causes one or more processors 1320 to perform the operations shown in Figures 9 and 11 or other operations to perform various techniques described herein to communicate using power control parameters for mTRP push iterations.

[0120]

[0134] In the illustrated example, the computer-readable medium / memory 1330 stores the code for receiving 1331, the code for transmitting 1332, and the code for determining 1233.

[0121]

[0135] In the illustrated example, one or more processors 1320 include circuits configured to implement code stored in a computer-readable medium / memory 1330, including a receiving circuit 1321, a transmitting circuit 1322, and a decision circuit 1323.

[0122]

[0136] Various components of the communication device 1300 can provide means for carrying out the methods described herein, including those shown in Figures 9 and 11.

[0123]

[0137] In some examples, the means for transmitting or sending (or for outputting for transmission) may include the transceiver 254 and / or the antenna 252 of the user equipment 104 shown in Figure 2 and / or the transceiver 1308 and antenna 1310 of the communication device 1300 in Figure 13.

[0124]

[0138] In some examples, the means for receiving (or acquiring) may include the transceiver 254 and / or antenna 252 of the user device 104 shown in Figure 2 and / or the transceiver 1308 and antenna 1310 of the communication device 1300 shown in Figure 13.

[0125]

[0139] In some examples, the means for making a decision may include various processing system components, such as one or more processors 1320 in Figure 13, an embodiment of the user equipment 104 shown in Figure 2, which includes a receiving processor 258, a transmitting processor 264, a TXMIMO processor 266, and / or a controller / processor 280 (including power control 281).

[0126]

[0140] In particular, Figure 13 is just one example, and many other examples and configurations of the communication device 1300 are possible. Example implementation of the term

[0141] Implementation examples are described in the following numbered sections.

[0127]

[0142] Section 1: A method for wireless communication by user equipment (UE), comprising: receiving a sounding reference signal (SRS) configuration indicating at least a first SRS resource set and at least a second SRS resource set; receiving downlink control information (DCI) scheduling a first set of one or more physical uplink shared channel (PUSCH) repeats to a first transmitter receiver point (TRP) and a second set of one or more PUSCH repeats to a second TRP; and transmitting the first and second sets of PUSCH repeats using at least one of a first set of default power control parameters or a second set of default power control parameters.

[0128]

[0143] The method according to paragraph 1, further comprising determining whether to use a first set of default power control parameters, a second set of default power control parameters, or both sets of default power control parameters, based on a field in DCI.

[0129]

[0144] Section 3: The fields within DCI indicate the dynamic switching of the order in which each TRP is targeted by each PUSCH iteration, as described in Section 2.

[0130]

[0145] Section 4: The method according to any one of Sections 1 to 3, wherein the first and second sets of default power control parameters comprise one or more of the following: a first parameter for controlling the received power level, a second parameter for partial path loss compensation, a third parameter indicating a reference signal (RS) resource index for measuring path loss, and a closed-loop index.

[0131]

[0146] Paragraph 5: The method described in any one of Paragraphs 1 to 4, wherein at least one of the SRS resource sets consists of a single SRS resource, and the DCI does not have an SRS Resource Indicator (SRI) field.

[0132]

[0147] Section 6: The method according to Section 5, wherein a first SRS resource set is associated with a first SRI PUSCH power control information element having an ID equal to 0, and a second SRS resource set is associated with a second SRI PUSCH power control information element having an ID equal to 0.

[0133]

[0148] Section 7: The method according to Section 6, wherein a first set of default power control parameters is determined based on a mapping to a first SRI PUSCH power control information element having an ID equal to 0, and a second set of default power control parameters is determined based on a mapping to a second SRI PUSCH power control information element having an ID equal to 0.

[0134]

[0149] The method according to any one of the paragraphs 6 to 7, further comprising receiving a media access control (MAC) control element (MAC-CE) indicating an update to a path loss reference signal associated with at least one of a first SRI PUSCH power control information element having an ID equal to 0, or a second SRI PUSCH power control information element having an ID equal to 0.

[0135]

[0150] Clause 9: The method according to any one of Clauses 6 to 8, wherein if the value of the first open-loop power control (OLPC) parameter set display field is set to a specific value, a first value of the first parameter for controlling the received power level in the first set of default power control parameters is assumed, and if the value of the second OLPC parameter set indicator field is set to a specific value, a second value of the second parameter for controlling the received power level in the second set of default power control parameters is assumed.

[0136]

[0151] Clause 10: The method described in any one of Clauses 1 to 4, wherein the UE does not have an SRI PUSCH power control setting, or the DCI does not have an SRS Resource Indicator (SRI) field.

[0137]

[0152] The method according to Clause 11: The method according to Clause 10, wherein a first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the lowest set ID, and a second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to a second lowest (second lowest) set ID.

[0138]

[0153] The method according to Clause 12: The method according to Clause 10, wherein a first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the highest set ID, and a second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the second highest (second highest) set ID.

[0139]

[0154] Section 13: If the UE is enabled on the default beam for SRS path loss and no PUSCH path loss reference RS is provided: The method according to any one of sections 10 to 12, wherein a first set of default power control parameters comprises a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index used for a first SRS resource set, and a second set of default power control parameters comprises a parameter indicating an RS resource index for measuring path loss associated with a second RS resource index used for a second SRS resource set.

[0140]

[0155] Section 14: If the UE does not provide SRI PUSCH power control settings: The method according to any one of Sections 10 to 12, wherein a first set of default power control parameters comprises a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index determined based on a PUSCH path loss reference RS ID value of 0, and a second set of default power control parameters comprises a parameter indicating an RS resource index for measuring path loss associated with a second RS resource index determined based on a PUSCH path loss reference RS ID value.

[0141]

[0156] Section 15: If the UE is not configured with two push power control adjustment states, both the first and second sets of default power control parameters are configured as described in any one of sections 10-14, including a closed-loop index of 0.

[0142]

[0157] Clause 16: The method described in any one of Clauses 10 to 14, wherein the UE is configured with two push power control adjustment states, the first set of default power control parameters includes a closed-loop index of 0, and the second set of default power control parameters includes a closed-loop index of 1.

[0143]

[0158] Clause 17: A wireless communication method by a base station (BS), comprising: transmitting a sounding reference signal (SRS) configuration indicating at least a first SRS resource set and at least a second SRS resource set to a user device (UE); transmitting downlink control information (DCI) scheduling one or more physical uplink shared channel (PUSCH) repeats to a first transmitter receiver point (TRP) and one or more second sets of PUSCH repeats to a second TRP; and processing at least one of a first set of PUSCH repeats based on a first set of default power control parameters, or a second set of PUSCH repeats based on a second set of default power control parameters.

[0144]

[0159] Clause 18: The method described in Clause 17, further comprising providing an indication in a field within the DCI whether to use a first set of default power control parameters, a second set of default power control parameters, or both the first and second sets of default power control parameters.

[0145]

[0160] Paragraph 19: The fields within DCI indicate the dynamic switching of the order in which each TRP is targeted by each PUSCH iteration, as described in Paragraph 18.

[0146]

[0161] Clause 20: The method described in any one of Clauses 17 to 17, wherein the first and second sets of default power control parameters comprise one or more of the following: a first parameter for controlling the received power level, a second parameter for partial path loss compensation, a third parameter indicating a reference signal (RS) resource index for measuring path loss, and a closed-loop index.

[0147]

[0162] Paragraph 21: The method described in any one of paragraphs 17 to 20, wherein at least one of the SRS resource sets consists of a single SRS resource, and the DCI does not have an SRS Resource Indicator (SRI) field.

[0148]

[0163] Paragraph 22: The method according to Paragraph 21, wherein a first SRS resource set is associated with a first SRI PUSCH power control information element having an ID equal to 0, and a second SRS resource set is associated with a second SRI PUSCH power control information element having an ID equal to 0.

[0149]

[0164] Paragraph 23: The method described in Paragraph 22, wherein a first set of default power control parameters is based on a mapping to a first SRI PUSCH power control information element having an ID equal to 0, and a second set of default power control parameters is based on a mapping to a second SRI PUSCH power control information element having an ID equal to 0.

[0150]

[0165] Paragraph 24: The method according to any one of paragraphs 22 to 23, further comprising transmitting a media access control (MAC) control element (MAC-CE), and indicating an update to a path loss reference signal associated with at least one of a first SRI PUSCH power control information element having an ID equal to 0, or a second SRI PUSCH power control information element having an ID equal to 0.

[0151]

[0166] Clause 25: The method according to any one of Clauses 22 to 24, wherein if the value of the first open-loop power control (OLPC) parameter set indicator field is set to a specific value, the first parameter for controlling the received power level in the first set of default power control parameters has a first value, and if the value of the second OLPC parameter set indicator field is set to a specific value, the second parameter for controlling the received power level in the second set of default power control parameters has a second value.

[0152]

[0167] Paragraph 26: The method described in any one of paragraphs 17 to 20, wherein the UE does not have an SRI PUSCH power control setting, or the DCI does not have an SRS resource indicator (SRI) field.

[0153]

[0168] The method according to paragraph 26, wherein a first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the lowest set ID, and a second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to a second lowest (second lowest) set ID.

[0154]

[0169] The method according to paragraph 26, wherein a first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the highest set ID, and a second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the second highest (second highest) set ID.

[0155]

[0170] Paragraph 29: If a default beam for SRS path loss is configured and a PUSCH path loss reference RS is not provided to the UE: The method according to any one of paragraphs 26 to 28, wherein a first set of default power control parameters comprises parameters indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index used for a first SRS resource set, and a second set of default power control parameters comprises parameters indicating an RS resource index for measuring path loss associated with a second RS resource index used for a second SRS resource set.

[0156]

[0171] Section 30: If no SRI PUSCH power control settings are provided to the UE: The method according to any one of sections 26 to 28, wherein a first set of default power control parameters comprises a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index based on a PUSCH path loss reference RS ID value of 0, and a second set of default power control parameters comprises a parameter indicating an RS resource index for measuring path loss associated with a second RS resource index based on a single PUSCH path loss reference RS ID value.

[0157]

[0172] Clause 31: If two PUSCH power control adjustment states are not configured for the UE, the method described in any one of Clauses 26 to 30, wherein both the first and second sets of default power control parameters include a closed-loop index of 0.

[0158]

[0173] Clause 32: The method described in any one of Clauses 26 to 30, wherein if two PUSCH power control adjustment states are configured in the UE, the first set of default power control parameters includes a closed-loop index of 0, and the second set of default power control parameters includes a closed-loop index of 1.

[0159]

[0174] Paragraph 33: A device comprising memory having executable instructions, and one or more processors configured to execute executable instructions and cause the device to perform the method according to any one of paragraphs 1 to 32.

[0160]

[0175] Paragraph 34: An apparatus comprising means for carrying out the method according to any one of paragraphs 1 to 32.

[0161]

[0176] Paragraph 35: A non-temporary computer-readable medium comprising executable instructions, which, when executed by one or more processors of the device, cause the device to perform the method according to any one of paragraphs 1 to 32.

[0162]

[0177] Paragraph 36: A computer program product embodied on a computer-readable storage medium, comprising code for performing the method according to any one of paragraphs 1 to 32. Additional considerations regarding wireless communication networks

[0178] The techniques and methods described herein may be used in a variety of wireless communication networks (or wireless wide area networks (WWANs)) and radio access technologies (RATs). While embodiments may be described herein using terminology generally associated with 3G, 4G, and / or 5G (e.g., 5G New Radio (NR)) wireless technologies, embodiments of this disclosure may also be applicable to other communication systems and standards not expressly mentioned herein.

[0163]

[0179] 5G wireless communication networks can support a variety of advanced wireless communication services, including mission-critical communications targeting enhanced mobile broadband (eMBB), millimeter wave (millimeter wave), machine-type communications (MTC), and / or ultra-high reliability low-latency communications (URLLC). These and other services may involve latency and reliability requirements.

[0164]

[0180] Returning to Figure 1, various aspects of this disclosure may be implemented within an exemplary wireless communication network 100.

[0165]

[0181] In 3GPP®, the term “cell” may refer to the coverage area of ​​a NodeB and / or the narrowband subsystem that provides this coverage area, depending on the context in which the term is used. In NR systems, the term “cell” may be used synonymously with BS, next-generation NodeB (gNB or gNodeB), access point (AP), distributed unit (DU), carrier, or transmit / receive point. A BS can provide communication coverage to macrocells, picocells, femtocells, and / or other types of cells.

[0166]

[0182] Macrocells generally cover relatively large geographical areas (e.g., a radius of several kilometers) and can allow unlimited access by UEs (User Entities) subscribed to the service. Picocells can cover relatively small geographical areas (e.g., a sports stadium) and can allow unlimited access by UEs subscribed to the service. Femtocells can cover relatively small geographical areas (e.g., a home) and can allow limited access by UEs associated with the femtocell (e.g., UEs within a closed subscriber group (CSG) and UEs for users within a home). A BS (Base Station) for a macrocell may be called a macroBS. A BS for a picocell may be called a picoBS. A BS for a femtocell may be called a femtoBS, homeBS, or homeNodeB.

[0167]

[0183] A base station 102 configured for 4G LTE (registered trademark) (collectively referred to as Evolutionary Universal Mobile Communications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with an EPC 160 via a first backhaul link 132 (e.g., S1 interface). A base station 102 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN)) can interface with a 5GC 190 via a second backhaul link 184. The base stations 102 can communicate with each other directly or indirectly (e.g., via an EPC 160 or 5GC 190) via a third backhaul link 134 (e.g., X2 interface). The third backhaul link 134 may generally be wired or wireless.

[0168]

[0184] Small cell 102' can operate in permitted and / or unpermitted frequency spectra. When operating in the unpermitted frequency spectrum, small cell 102' can employ NR and use the same 5GHz unpermitted frequency spectrum as that used by Wi-Fi® AP150. Small cell 102' can employ NR in the unpermitted frequency spectrum to expand access network coverage and / or increase access network capacity.

[0169]

[0185] Some base stations, such as the gNB180, may operate in the conventional sub-6GHz spectrum, millimeter-wave (millimeter wave) frequencies, and / or near-millimeter-wave frequencies when communicating with the UE104. If the gNB180 operates in millimeter-wave or near-millimeter-wave frequencies, it may be referred to as a millimeter-wave base station.

[0170]

[0186] The communication link 120 between base station 102 and, for example, UE 104, can be via one or more carriers. For example, base station 102 and UE 104 can use a spectrum with a maximum bandwidth of Y MHz (e.g., 5, 10, 15, 20, 100, 400, and other MHz) per carrier allocated in a carrier aggregation of a total maximum Yx MHz (x component carriers) used for transmission in each direction. The carriers may be adjacent or not adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL than to UL). Component carriers may include primary component carriers and one or more secondary component carriers. Primary component carriers may be called primary cells (PCells), and secondary component carriers may be called secondary cells (SCells).

[0171]

[0187] The wireless communication network 100 further includes a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 on an unlicensed frequency spectrum, for example, 2.4 GHz and / or 5 GHz. When communicating on an unlicensed frequency spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) before communication to determine whether the channel is available.

[0172]

[0188] Certain UE104 devices can communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 can use the DL / ULWWAN spectrum. The D2D communication link 158 can use one or more sidelink channels, such as the Physical Sidelink Broadcast Channel (PSBCH), Physical Sidelink Discovery Channel (PSDCH), Physical Sidelink Share Channel (PSSCH), and Physical Sidelink Control Channel (PSCCH). D2D communication can be performed through various wireless D2D communication systems, some of which include FlashLinQ, WiMedia, Bluetooth®, ZigBee®, Wi-Fi based on the IEEE 802.11 standard, 4G (e.g., LTE), or 5G (e.g., NR).

[0173]

[0189] EPC160 may include a Mobility Management Entity (MME) 162, another MME 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172. MME 162 may communicate with a Home Subscriber Server (HSS) 174. MME 162 is a control node that handles signaling between UE 104 and EPC160. Generally, MME 162 provides bearer and connectivity management.

[0174]

[0190] Generally, user Internet Protocol (IP) packets are forwarded via a serving gateway 166 connected to a PDN gateway 172. The PDN gateway 172 provides UEIP address allocation and other functions. The PDN gateway 172 and BM-SC170 are connected to an IP service 176 which can include, for example, the Internet, an intranet, an IP multimedia subsystem (IMS), PS streaming services, and / or other IP services.

[0175]

[0191] The BM-SC170 can provide functionality for provisioning and delivering MBMS user services. The BM-SC170 can function as an entry point for MBMS transmissions from content providers, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS gateway 168 may be used to distribute MBMS traffic to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area broadcasting specific services, and may be responsible for session management (start / stop) and collecting eMBMS-related billing information.

[0176]

[0192] 5GC190 may include access and mobility management functions (AMF)192, other AMFs193, session management functions (SMF)194, and user plane functions (UPF)195. AMF192 may communicate with integrated data management (UDM)196.

[0177]

[0193] The AMF192 is generally a control node that handles signaling between the UE104 and 5GC190. Typically, the AMF192 provides QoS flow and session management.

[0178]

[0194] All user Internet Protocol (IP) packets are connected to IP service 197 and forwarded via UPF195, which provides IP address allocation for the UE and other functions of 5GC190. IP service 197 may include, for example, the Internet, intranet, IP multimedia subsystem (IMS), PS streaming service, and / or other IP services.

[0179]

[0195] Returning to Figure 2, various component examples of BS102 and UE104 (e.g., wireless communication network 100 in Figure 1) that may be used to implement aspects of this disclosure are shown.

[0180]

[0196] In BS102, the transmitting processor 220 can receive data from the data source 212 and control information from the controller / processor 240. The control information may relate to the Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Physical Hybrid ARQ Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), Group Common PDCCH (GCPDCCH), etc. In some examples, the data may be for the Physical Downlink Shared Channel (PDSCH).

[0181]

[0197] A Media Access Control (MAC) control element (MAC-CE) is a MAC layer communication structure that can be used for exchanging control commands between wireless nodes. MAC-CEs can be carried over shared channels such as the Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), or Physical Sidelink Shared Channel (PSSCH).

[0182]

[0198] The processor 220 can process data and control information (e.g., encoding and symbol mapping) to obtain data symbols and control symbols, respectively. The transmit processor 220 can also generate reference symbols for primary synchronization signals (PSS), secondary synchronization signals (SSS), PBCH demodulation reference signals (DMRS), and channel status information reference signals (CSI-RS).

[0183]

[0199] The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can, where applicable, perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, and / or reference symbols, and provide the output symbol stream to the modulators (MODs) in transceivers 232a-232t. Each modulator in transceivers 232a-232t can process its respective output symbol stream (e.g., in the case of OFDM) to obtain an output sample stream. Each modulator can further process the output sample stream (e.g., convert to analog, amplify, filter, and upconvert) to obtain a downlink signal. The downlink signals from the modulators in transceivers 232a-232t can be transmitted via antennas 234a-234t, respectively.

[0184]

[0200] In UE104, antennas 252a-252r can receive downlink signals from BS102 and provide the received signals to the demodulators (DEMODs) in transceivers 254a-254r, respectively. Each demodulator in transceivers 254a-254r can adjust (e.g., filter, amplify, downconvert, and digitize) its respective received signal to obtain an input sample. Each demodulator can further process the input sample (e.g., OFDM) to obtain a received symbol.

[0185]

[0201] The MIMO detector 256 can acquire received symbols from all demodulators in transceivers 254a to 254r, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. The receiving processor 258 can process the detected symbols (e.g., demodulate, deinterleave, and decode), provide the decoded UE104 data to the data sink 260, and provide the decoded control information to the controller / processor 280.

[0186]

[0202] In the uplink, at UE104, the transmit processor 264 can receive and process data from data source 262 (e.g., regarding the physical uplink shared channel (PUSCH)) and control information from controller / processor 280 (e.g., regarding the physical uplink control channel (PUCCH)). The transmit processor 264 can also generate reference symbols for reference signals (e.g., sounding reference signals (SRS)). The symbols from the transmit processor 264 can be precoded by the TXMIMO processor 266, where applicable, further processed by modulators in transceivers 254a-254r (e.g., for SC-FDM) and transmitted to BS102.

[0187]

[0203] In BS102, the uplink signal from UE104 is received by antennas 234a-t, processed by demodulators in transceivers 232a-232t, detected by MIMO detector 236 where applicable, and may be further processed by a receiving processor 238 to obtain decoded data and control information transmitted by UE104. The receiving processor 238 can provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240.

[0188]

[0204] Memories 242 and 282 can store data and program code for BS102 and UE104, respectively.

[0189]

[0205] Scheduler 244 can schedule UEs for data transmission on the downlink and / or uplink.

[0190]

[0206] 5G can utilize orthogonal frequency division multiplexing (OFDM) with cyclic prefixes (CP) on the uplink and downlink. 5G can also support half-duplex operation using time-division duplex (TDD). OFDM and single-carrier frequency division multiplexing (SC-FDM) divide the system bandwidth into multiple orthogonal subcarriers. These subcarriers are commonly referred to as tones and bins. Each subcarrier can be modulated with data. The modulation symbol can be transmitted in the frequency domain in OFDM and in the time domain in SC-FDM. The spacing between adjacent subcarriers is fixed, and the total number of subcarriers may depend on the system bandwidth. A minimum resource allocation, called a resource block (RB), may be 12 consecutive subcarriers in some examples. The system bandwidth can also be divided into subbands. For example, a subband may cover multiple RBs. NR can support a base subcarrier spacing (SCS) of 15 kHz, and other SCSs can be defined relative to the base SCS (e.g., 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc.).

[0191]

[0207] As described above, Figures 3A to 3D show various examples of data structures for wireless communication networks, such as the wireless communication network 100 in Figure 1.

[0192]

[0208] In various embodiments, the 5G frame structure may be frequency-division duplex (FDD), where for a given set of subcarriers (carrier system bandwidth), the subframes within that set of subcarriers are either DL or UL. The 5G frame structure may also be time-division duplex (TDD), where for a given set of subcarriers (carrier system bandwidth), the subframes within that set of subcarriers are either DL or UL. In the examples provided by Figures 3A and 3C, the 5G frame structure is assumed to be TDD, with subframe 4 consisting of slot format 28 (mostly DL), where D is DL, U is UL, and X is flexible for use between DL and UL, and subframe 3 consisting of slot format 34 (mostly UL). Although subframes 3 and 4 are shown in slot formats 34 and 28 respectively, any particular subframe may consist of any of the various available slot formats 0 through 61. Slot formats 0 and 1 are all DL and UL, respectively. The other slot formats 2 through 61 include a mix of DL, UL, and flexible symbols. The UE is configured with a slot format via the received Slot Format Indicator (SFI) (dynamically via DL Control Information (DCI) or semi-statically / statically via Radio Resource Control (RRC) signaling). Note that the following description also applies to the 5G frame structure, which is TDD.

[0193]

[0209] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10 milliseconds) can be divided into 10 subframes (1 millisecond each) of equal size. Each subframe may contain one or more time slots. Subframes may also contain mini-slots that may contain 7, 4, or 2 symbols. In some examples, each slot may contain 7 or 14 symbols, depending on the slot configuration.

[0194]

[0210] For example, in slot configuration 0, each slot can contain 14 symbols, and in slot configuration 1, each slot can contain 7 symbols. Symbols on DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols. Symbols on UL may be CP-OFDM symbols (for high-throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (also called single-carrier frequency division multiple access (SC-FDMA) symbols) (limited to single-stream transmission in power-limited scenarios).

[0195]

[0211] The number of slots within a subframe depends on the slot configuration and numerology. For slot configuration 0, different numerologies (μ) 0-5 allow 1, 2, 4, 8, 16, and 32 slots per subframe, respectively. For slot configuration 1, different numerologies 0-2 allow 2, 4, and 8 slots per subframe, respectively. Therefore, for slot configuration 0 and numerology μ, there are 14 symbols / slot and 2 μ slots / subframe. The subcarrier interval and symbol length / duration are functions of the numerology. The subcarrier interval is 2 μ This can be equal to ×15kHz, where μ is numerology 0 to 5. Therefore, the subcarrier interval for numerology μ=0 is 15kHz, and the subcarrier interval for numerology μ=5 is 480kHz. The symbol length / duration is inversely proportional to the subcarrier interval. Figures 3A to 3D provide examples of slot configuration 0 with 14 symbols per slot and numerology μ=2 with 4 slots per subframe. The slot duration is 0.25ms, the subcarrier interval is 60kHz, and the symbol duration is approximately 16.67μs.

[0196]

[0212] A resource grid can be used to represent the frame structure. Each time slot contains a resource block (RB) (also called a physical RB (PRB)) that extends 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits transmitted by each RE varies depending on the modulation scheme.

[0197]

[0213] As shown in Figure 3A, some REs carry reference (pilot) signals (RS) for the UE (e.g., UE104 in Figures 1 and 2). RS may include demodulated RS (DM-RS) (indicated as Rx in certain configurations, where 100x is the port number, although other DM-RS configurations are possible) and channel state information reference signals (CSI-RS) for channel estimation at the UE. RS may also include beam measurement RS (BRS), beam refinement RS (BRRS), and phase tracking RS (PT-RS).

[0198]

[0214] Figure 3B shows examples of various DL channels within a frame subframe. A physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs). Each CCE contains nine RE groups (REGs), and each REG contains four consecutive REs within an OFDM symbol.

[0199]

[0215] The primary synchronization signal (PSS) may be located within symbol 2 of a specific subframe of a frame. The PSS is used by the UE (e.g., 104 in Figures 1 and 2) to determine the timing and physical layer identification of the subframe / symbol.

[0200]

[0216] The Secondary Synchronization Signal (SSS) may be located within Symbol 4 of a specific subframe of a frame. The SSS is used by the UE to determine the physical layer cell identification group number and radio frame timing.

[0201]

[0217] Based on the physical layer identification and physical layer cell identification group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the aforementioned DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) may be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides the number of RBs and the system frame number (SFN) within the system bandwidth. The physical downlink shared channel (PDSCH) carries user data, broadcast system information not transmitted via the PBCH such as the system information block (SIB), and paging messages.

[0202]

[0218] As shown in Figure 3C, a portion of the RE carries DM-RS (shown as R for one particular configuration, but other DM-RS configurations are also possible) for channel estimation at the base station. The UE may transmit DM-RS for the physical uplink control channel (PUCCH) and DM-RS for the physical uplink shared channel (PUSCH). PUSCH DM-RS may be transmitted in the first one or two symbols of the PUSCH. PUCCH DM-RS may be transmitted in different configurations depending on whether a short or long PUCCH is transmitted and depending on the specific PUCCH format used. The UE may transmit a sounding reference signal (SRS). The SRS may be transmitted in the last symbol of a subframe. The SRS may have a comb structure, and the UE may transmit the SRS in one of the combs. The SRS may be used by the base station for channel quality estimation, enabling frequency-dependent scheduling on the UL.

[0203]

[0219] Figure 3D shows examples of various UL channels within a frame subframe. The PUCCH may be arranged as shown in one configuration. The PUCCH carries uplink control information (UCI) such as scheduling requests, channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), and HARQ ACK / NACK feedback. The PUCCH carries data and may also be used to carry buffer status reports (BSR), power headroom reports (PHR), and / or UCI. Additional considerations

[0220] The preceding description illustrates an example of communication using mTRP PUSCH repetition power control parameters in a communication system. The preceding description is provided to enable those skilled in the art to practice the various embodiments described herein. The examples discussed herein do not limit the scope, applicability, or embodiments described in the claims. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may also be applied to other embodiments. For example, changes may be made to the function and arrangement of the described elements without departing from the scope of this disclosure. In various examples, various procedures and components may be omitted, replaced, or added as needed. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Also, features described in some examples may be combined in some other examples. For example, an apparatus may be implemented or a method may be carried out using any number of embodiments described herein. Furthermore, the scope of this disclosure is intended to cover such apparatus or method carried out using, in addition to, the various embodiments of this disclosure described herein, or other structures, functions, or structures and functions. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0204]

[0221] The technologies described herein can be used in a variety of wireless communication technologies, including 5G (e.g., 5GNR), 3GPP Long-Term Evolution (LTE), LTE-Advanced (LTE-A), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and other networks. The terms “network” and “system” are often used interchangeably. CDMA networks may implement radio technologies such as Universal Terrestrial Radio Access (UTRA) and cdma2000. UTRA includes broadband CDMA (WCDMA®) and other variants of CDMA. cdma2000 covers the IS-2000, IS-95, and IS-856 standards. TDMA networks may implement radio technologies such as Global System for Mobile Communications (GSM®). OFDMA networks can implement wireless technologies such as NR (e.g., 5GRA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX®), IEEE 802.20, and Flash-OFDMA. UTRA and E-UTRA are part of the Universal Mobile Communications System (UMTS). LTE and LTE-A are releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are documented in the documents of an organization called the "Third Generation Partnership Project" (3GPP). cdma2000 and UMB are documented in the documents of an organization called the "Third Generation Partnership Project II" (3GPP2). NR is a new wireless communication technology under development.

[0205]

[0222] The various exemplary logic blocks, modules, and circuits described in connection with this disclosure may be implemented or run on general-purpose processors, DSPs, ASICs, field-programmable gate arrays (FPGAs) or other programmable logic devices (PLDs), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but instead, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working with a DSP core, a system-on-a-chip (SoC), or any other such configuration.

[0206]

[0223] When implemented in hardware, an exemplary hardware configuration may include a processing system within a wireless node. The processing system may be implemented using a bus architecture. The bus may include any number of interconnecting buses and bridges, depending on the specific application and overall design constraints of the processing system. The bus can link various circuits, including processors, machine-readable media, and bus interfaces. Bus interfaces may be used, in particular, to connect network adapters to the processing system via the bus. Network adapters may be used to implement the signal processing functions of the PHY layer. In the case of user equipment (see Figure 1), user interfaces (e.g., keypads, displays, mice, joysticks, touchscreens, biosensors, proximity sensors, light-emitting elements, etc.) may also be connected to the bus. The bus can also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, but these are well known in the art and will not be described further. The processor may be implemented using one or more general-purpose processors and / or dedicated processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits capable of running software. Those skilled in the art will recognize the best way to implement the described functionality of the processing system, depending on the overall design constraints imposed on the specific application and the entire system.

[0207]

[0224] When implemented in software, functionality is stored or transmitted as one or more instructions or code on a computer-readable medium. Software is broadly interpreted to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, etc. Computer-readable medium includes both computer storage media and communication media, including any media that facilitate the transfer of computer programs from one location to another. A processor may be responsible for bus management and general operations, including the execution of software modules stored on machine-readable storage media. Computer-readable storage media may be coupled to a processor so that the processor can read information from and write information to the storage media. Alternatively, the storage media may be integrated with the processor. For example, machine-readable medium may include computer-readable storage media on which instructions are stored, separate from transmission lines, data-modulated carrier waves, and / or wireless nodes, all of which may be accessible from the processor via a bus interface. Alternatively, or in addition, machine-readable medium or any part thereof may be integrated with the processor, as in the case of caches and / or general-purpose register files. Examples of machine-readable storage media may include, for example, RAM (Random Access Memory), flash memory, ROM (Read-Only Memory), PROM (Programmable Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), registers, magnetic disks, optical disks, hard drives, or other suitable storage media, or any combination thereof. Machine-readable media may be implemented in computer program products.

[0208]

[0225] A software module can consist of a single instruction or a number of instructions and can be distributed across several different code segments, different programs, and multiple storage media. A computer-readable medium can contain a large number of software modules. When executed by a device such as a processor, a software module contains instructions that cause the processing system to perform various functions. A software module may include send modules and receive modules. Each software module can reside on a single storage device or be distributed across multiple storage devices. As an example, when a trigger event occurs, a software module may be loaded from a hard drive into RAM. While a software module is executing, the processor may load some of the instructions into a cache to improve access speed. One or more cache lines may be loaded into a general-purpose register file for execution by the processor. When the functions of a software module are referred to below, it will be understood that such functions are implemented by the processor when executing instructions from that software module.

[0209]

[0226] As used herein, the word “exemplary” means “example, instance, or representative.” No embodiment described herein as “exemplary” should be construed as necessarily preferable or advantageous to any other embodiment.

[0210]

[0227] Where used herein, the phrase “at least one” in an item list refers to any combination of those items that contain a single member. For example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, and multiple combinations of the same elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, ccc, or any other order of a, b, and c).

[0211]

[0228] As used herein, the term “decide” encompasses a wide range of actions. For example, “decide” may include calculation, computing, processing, derivation, investigation, retrieval (e.g., retrieval in a table, database, or other data structure), confirmation, etc. It may also include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), etc. It may also include resolving, selecting, choosing, establishing, etc.

[0212]

[0229] The methods disclosed herein comprise one or more steps or actions for achieving the method. The steps and / or actions of the method can be substituted for one another without departing from the claims. In other words, unless a particular order of steps or actions is specified, the order and / or use of any particular steps and / or actions can be changed without departing from the claims. Furthermore, the various operations of the methods described above can be performed by any suitable means capable of performing the corresponding function. These means may include, but are not limited to, circuits, application-specific integrated circuits (ASICs), or processors, but include a variety of hardware and / or software components and / or modules. Generally, where there are operations shown in the figures, there may be corresponding means plus functional components with similar numbering for those operations.

[0213]

[0230] The following claims are not intended to be limited to the embodiments described herein, but rather to provide the full scope consistent with the language of the claims. In the claims, a singular reference to an element means "one or more" rather than "one" unless otherwise specified. Unless otherwise specified, the term "several" means one or more. No claim element should be construed under Section 112(f) of the U.S. Patent Act unless the element is expressly described using the phrase "means," or, in the case of a method claim, the element is described using the phrase "step for." All structural and functional equivalents to the elements of various embodiments described herein, known to those skilled in the art, or to be known thereafter, are expressly incorporated by reference herein and are intended to be included in the claims. Furthermore, nothing disclosed herein is intended to be made available to the public, regardless of whether such disclosure is expressly stated in the claims.

Claims

1. A method for wireless communication using user equipment (UE), Receiving a sounding reference signal (SRS) configuration indicating at least a first SRS resource set and at least a second SRS resource set, Receiving downlink control information (DCI) that schedules one or more physical uplink shared channel (PUSCH) repetitions to a first transmitter receiver point (TRP) and one or more PUSCH repetitions to a second TRP, A method comprising transmitting the first and second sets of PUSCH repetitions using at least one of a first set of default power control parameters or a second set of default power control parameters.

2. Based on the fields in the DCI, The first set of default power control parameters, The second set of default power control parameters, or Both the first and second sets of default power control parameters The method according to claim 1, further comprising determining whether or not to use.

3. The method according to claim 2, wherein the field in the DCI indicates a dynamic switching of the order in which each TRP is targeted by each PUSCH iteration.

4. The method according to claim 1, wherein the first and second sets of default power control parameters comprise one or more of a first parameter for controlling the received power level, a second parameter for partial path loss compensation, a third parameter indicating a reference signal (RS) resource index for measuring path loss, and a closed-loop index.

5. At least one of the SRS resource sets consists of a single SRS resource, The method according to claim 1, wherein the DCI does not have an SRS resource indicator (SRI) field.

6. The first SRS resource set is associated with a first SRI PUSCH power control information element having an ID equal to 0. The method according to claim 5, wherein the second SRS resource set is associated with a second SRI PUSCH power control information element having an ID equal to 0.

7. The first set of default power control parameters is determined based on a mapping to the first SRI PUSCH power control information element having an ID equal to 0. The method according to claim 6, wherein the second set of default power control parameters is determined based on a mapping to the second SRI PUSCH power control information element having an ID equal to 0.

8. The method according to claim 6, further comprising receiving a media access control (MAC) control element (MAC-CE) indicating an update to a path loss reference signal associated with at least one of the first SRI PUSCH power control information element having an ID equal to 0, or the second SRI PUSCH power control information element having an ID equal to 0.

9. If the value of the first open-loop power control (OLPC) parameter set instruction field is set to a specific value, then a first value is assumed for the first parameter for controlling the received power level in the first set of default power control parameters. The method according to claim 6, wherein if the value of the second OLPC parameter set instruction field is set to a specific value, a second value of the second parameter for controlling the received power level in the second set of default power control parameters is assumed.

10. The aforementioned UE does not have an SRI PUSCH power control setting, or The aforementioned DCI does not have an SRS Resource Indicator (SRI) field. The method according to claim 1, wherein at least one of the following:

11. The first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the lowest set ID. The method according to claim 10, wherein the second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from the set of parameters mapped to a second lowest set ID.

12. The first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the highest set ID. The method according to claim 10, wherein the second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from the set of parameters mapped to the second highest set ID.

13. If the aforementioned UE is enabled in the default beam for SRS path loss and no PUSCH path loss reference RS is provided, The first set of default power control parameters includes a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index used for the first SRS resource set, The method according to claim 10, wherein the second set of default power control parameters comprises a parameter indicating an RS resource index for measuring path loss associated with a second RS resource index used for the second SRS resource set.

14. If the aforementioned UE is not provided with SRI PUSCH power control settings, The first set of default power control parameters includes a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index determined based on a PUSCH path loss reference RS ID value of 0, The method according to claim 10, wherein the second set of default power control parameters comprises a parameter indicating an RS resource index for measuring path loss associated with a second RS resource index determined based on a single PUSCH path loss criterion RS ID value.

15. The method according to claim 10, wherein if the UE is not configured with two PUSCH power control adjustment states, both the first and second sets of default power control parameters include a closed-loop index of 0.

16. The method according to claim 10, wherein, when the UE is configured with two PUSCH power control adjustment states, the first set of default power control parameters includes a closed-loop index of 0, and the second set of default power control parameters includes a closed-loop index of 1.

17. A wireless communication method using a base station (BS), Transmitting a sounding reference signal (SRS) configuration indicating at least a first SRS resource set and at least a second SRS resource set to a user device (UE); Transmitting downlink control information (DCI) that schedules a first set of one or more physical uplink shared channel (PUSCH) repeats to a first transmitter receiver point (TRP) and a second set of one or more PUSCH repeats to a second TRP; Processing at least one of the first set of PUSCH iterations based on a first set of default power control parameters, or the second set of PUSCH iterations based on a second set of default power control parameters, A method that includes [a certain feature].

18. In the field within the DCI, The first set of default power control parameters, The second set of default power control parameters, or Both the first and second sets of default power control parameters The method of claim 17, further comprising providing instructions on whether or not to use.

19. The method according to claim 18, wherein the field in the DCI indicates a dynamic switching of the order in which each TRP is targeted by each PUSCH iteration.

20. The method according to claim 17, wherein the first and second sets of default power control parameters comprise one or more of a first parameter for controlling the received power level, a second parameter for partial path loss compensation, a third parameter indicating a reference signal (RS) resource index for measuring path loss, and a closed-loop index.

21. At least one of the SRS resource sets consists of a single SRS resource, The method according to claim 17, wherein the DCI does not have an SRS resource indicator (SRI) field.

22. The first SRS resource set is associated with a first SRI PUSCH power control information element having an ID equal to 0. The method according to claim 21, wherein the second SRS resource set is associated with a second SRI PUSCH power control information element having an ID equal to 0.

23. The first set of default power control parameters is based on a mapping to the first SRI PUSCH power control information element having an ID equal to 0. The method according to claim 22, wherein the second set of default power control parameters is based on a mapping to the second SRI PUSCH power control information element having an ID equal to 0.

24. The method according to claim 22, further comprising transmitting a medium access control (MAC) control element (MAC-CE) indicating an update to a path loss reference signal associated with at least one of the first SRI PUSCH power control information element having an ID equal to 0, or the second SRI PUSCH power control information element having an ID equal to 0.

25. When the value of the first open-loop power control (OLPC) parameter set indicator field is set to a specific value, the first parameter for controlling the received power level in the first set of default power control parameters has a first value: The method according to claim 22, wherein, when the value of the second OLPC parameter set instruction field is set to a specific value, the second parameter for controlling the received power level in the second set of default power control parameters comprises the second value.

26. The aforementioned UE does not have an SRI PUSCH power control setting, or The aforementioned DCI does not have an SRS Resource Indicator (SRI) field. The method according to claim 17, wherein at least one of the following is the method according to claim 17.

27. The first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the lowest set ID. The method according to claim 26, wherein the second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from the set of parameters mapped to a second lowest set ID.

28. The first set of default power control parameters comprises a first parameter for controlling the received power level and a second parameter for partial path loss compensation from a set of parameters mapped to the highest set ID. The method according to claim 26, wherein the second set of default power control parameters comprises a second parameter for controlling the received power level and a second parameter for partial path loss compensation from the set of parameters mapped to the second highest set ID.

29. If a default beam for path loss in the SRS is configured and a PUSCH path loss reference RS is not provided to the UE, The first set of default power control parameters includes a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index used for the first SRS resource set, The method according to claim 26, wherein the second set of default power control parameters comprises a parameter indicating an RS resource index for measuring path loss associated with a second RS resource index used for the second SRS resource set.

30. When the SRI PUSCH power control setting is not provided to the UE, The first set of default power control parameters includes a parameter indicating a reference signal (RS) resource index for measuring path loss associated with a first RS resource index, based on a PUSCH path loss reference RS ID value of 0. The method according to claim 26, wherein the second set of default power control parameters comprises a parameter indicating an RS resource index for measuring path loss associated with a second RS resource index based on a single PUSCH path loss criterion RS ID value.

31. The method according to claim 26, wherein if two PUSCH power control adjustment states are not configured for the UE, both the first and second sets of default power control parameters include a closed-loop index of 0.

32. The method according to claim 26, wherein when two PUSCH power control adjustment states are configured for the UE, the first set of default power control parameters includes a closed-loop index of 0, and the second set of default power control parameters includes a closed-loop index of 1.

33. It is a device, Memory containing executable instructions, One or more processors configured to execute the executable instructions and cause the device to perform the method according to any one of claims 1 to 32, A device equipped with the following features.

34. An apparatus comprising means for carrying out the method described in any one of claims 1 to 32.

35. A non-temporary computer-readable medium comprising executable instructions, which, when executed by one or more processors of the device, cause the device to perform the method according to any one of claims 1 to 32.

36. A computer program product embodied on a computer-readable storage medium, comprising code for performing the method described in any one of claims 1 to 32.

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