Uplink PUSCH open-loop power control method, device and storage medium

Abstract

The present disclosure relates to an open loop power control method, an apparatus, and a storage medium for uplink PUSCH. The open loop power control method for uplink PUSCH is applied to a network device, and includes the steps of: sending first indication information; and in response to the absence of an SRI indication field in the first indication information, setting and determining open loop power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP, the open loop power control parameters including corresponding open loop power boost values, the first indication information indicating an open loop power boost value used when transmitting a PUSCH toward a multi-coordinated TRP, and the open loop power boost value used when transmitting a PUSCH corresponds to a different coordinated TRP transmitting a PUSCH. The present disclosure realizes open loop power control in PUSCH extension based on multi-TRP.

Description

[Technical Field]

[0001] The present disclosure relates to the field of communication technologies, and more particularly to an open-loop power control method, apparatus, and storage medium for uplink PUSCH. [Background technology]

[0002] With the development of communication technology, beam-based transmission and reception is required to ensure coverage. When a network device (e.g., a base station) has multiple transmission and reception points (TRPs), it can provide services to terminals using multi-TRPs / panels. The application of multi-TRPs / panels to network devices is primarily intended to improve cell edge coverage and provide more balanced service quality within the service area, with data transmitted between multi-TRPs / panels in different ways. From a network topology perspective, a network configuration with a large number of distributed access points and centralized baseband processing is advantageous for providing balanced user experience speeds and significantly reducing handover delays and signaling overhead. By using multiple TRPs / panels in cooperation to transmit / receive channels from multiple beams at multiple angles, various occlusion / blocking effects can be better overcome, ensuring robustness of link connections, and improving transmission quality, suitable for Ultra Reliable Low Latency Communication (URLLC) services, meeting reliability requirements.

[0003] In the R16 research phase, transmission enhancements were made to the physical downlink shared channel (PDSCH) based on the application of multi-point coordinated transmission technology between downlink multi-TRP / PANELs. Data transmission includes scheduling feedback for uplink and downlink channels. Therefore, in URLLC research, service performance cannot be ensured by simply extending the downlink data channel. Therefore, in R17 research, further enhancements were made to the physical downlink control channel (PDCCH), physical uplink control channel (PUCCH), and physical uplink shared channel (PUSCH).

[0004] In a communication system, there are data services with different priorities, delay requirements, or reliability requirements. For example, there is a URLLC service with very high latency and reliability requirements, and an Enhanced Mobile Broadband (eMBB) service with relatively low latency and reliability requirements. Typically, URLLC is scheduled with shorter transmission time intervals, and URLLC services are bursty and random, resulting in distributed resource allocation and low resource utilization. Therefore, multiplexing with eMBB transmission is being considered to improve resource utilization. Unlike downlink transmission, when a specific terminal transmits uplink data, it is not possible to determine whether the transmission resources of the service data overlap with those of services with different priorities transmitted by other terminals. To ensure the reliability of URLLC service transmission, R16 introduces an open-loop power control parameter set indication in downlink control information (DCI) scheduling to indicate the power boosting indication function used for PUSCH scheduling, and introduces a new Radio Resource Control (RRC) parameter, P0-PUSCH-Set, to indicate power control. In related art, each Sounding Reference Signal (SRS) resource indication (SRS Resource indication, SRI) corresponds to one open-loop power control parameter P0-PUSCH-Set and is indicated by the open-loop power control parameter set indication.

[0005] In the R17 PUSCH extension based on multi-TRP / PANEL, URLLC services transmitted based on multi-TRP occur in PUSCH transmission scenarios, colliding with eMBB services on different TRPs. That is, the collision interference situations of the reception of the two TRPs by the network device are different. How to extend the power boosting mechanism of open-loop power control (OLPC) to multi-TRP remains an issue to be researched. Summary of the Invention [Problem to be solved by the invention]

[0006] To overcome the problems existing in the related art, the present disclosure provides an open-loop power control method, apparatus, and storage medium for uplink PUSCH. [Means for solving the problem]

[0007] According to a first aspect of an embodiment of the present disclosure, there is provided an open-loop power control method for an uplink PUSCH applied to a network device, the method comprising: transmitting first indication information; and in response to the absence of an SRI indication field in the first indication information, configuring and determining open-loop power control parameters of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP, wherein the open-loop power control parameters include corresponding open-loop power boost values, wherein the first indication information indicates open-loop power boost values ​​to be used when transmitting a PUSCH toward a multi-coordinated TRP, and the open-loop power boost values ​​to be used when transmitting a PUSCH correspond to different coordinated TRPs transmitting a PUSCH.

[0008] In one embodiment, the step of configuring and determining open loop power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP includes: The method includes: setting a power control parameter set corresponding to each TRP direction of the multi-coordinated TRP indicated by the first indication information, where each power control parameter set includes an open-loop power control parameter of the corresponding TRP direction; and determining, in the power control parameter set corresponding to the TRP direction, an open-loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0009] In one embodiment, the first indication information is carried in downlink control information (DCI), and the DCI includes an information field, which indicates open-loop power boost values ​​of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0010] In one embodiment, the information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP correspond to the same open loop power control parameters.

[0011] In one embodiment, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP, and determining OLPC power control parameters for one or more TRPs to be used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP includes determining, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0012] In one embodiment, the DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether one or more TRPs used by the terminal when transmitting a PUSCH toward a multi-coordinated TRP have the same interference situation, and / or information on a TRP that needs power boosting among one or more TRPs used when transmitting a PUSCH toward a multi-coordinated TRP.

[0013] In one embodiment, the step of determining OLPC power control parameters of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-jointed TRP includes: In response to the second indication information indicating that the interference conditions of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP are the same, applying the same open-loop power control parameters in the PUSCH power sets corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward a multi-coordinated TRP; and, in response to the second indication information indicating that the interference conditions of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP are different or indicating that the TRP requiring power boost is the first coordinated TRP. In response to this, determining an open-loop power boost value to be used in a first coordinated TRP corresponding to when the terminal transmits a PUSCH toward a multi-coordinated TRP in a PUSCH power control parameter set associated with the first OLPC power code point, and determining, by a predefined scheme, an open-loop power boost value to be used in a second coordinated TRP corresponding to when the terminal transmits a PUSCH toward a multi-coordinated TRP in a PUSCH power control parameter set associated with the first OLPC power code point, wherein the second coordinated TRP is one or more TRPs different from the first coordinated TRP among one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP.

[0014] In one embodiment, the second indication information comprises a highest extension bit value in the information field or a lowest extension bit value in the information field.

[0015] In one embodiment, the method further comprises determining a coordinated TRP corresponding to the open loop power boost value.

[0016] In one embodiment, the coordinated TRP corresponding to the open loop power boost value is: The determination is based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, and is determined by at least one of the following: the size of the SRS resource set identifier has a corresponding relationship with the direction order of the TRP.

[0017] According to a second aspect of the present disclosure, there is provided an open-loop power control method for an uplink PUSCH applied to a terminal, the open-loop power control method for the uplink PUSCH comprising: The method includes receiving first indication information, where the first indication information does not have an SRI indication field, and the first indication information indicates an open-loop power boost value to be used when transmitting a PUSCH toward a multi-coordinated TRP; and determining open-loop power boost values ​​of one or more TRPs to be used by the terminal when transmitting a PUSCH toward the multi-coordinated TRP, where the open-loop power boost values ​​to be used when transmitting the PUSCH correspond to different coordinated TRPs that transmit the PUSCH.

[0018] In one embodiment, a corresponding power control parameter set is set for each TRP direction of the multi-coordinated TRP indicated by the first indication information, and each power control parameter set includes an open loop power control parameter for the corresponding TRP direction; The step of determining open-loop power boost values ​​of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP includes determining, in a power control parameter set corresponding to the TRP direction, an open-loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0019] In one embodiment, the first indication information is carried in downlink control information (DCI), and the DCI includes an information field, which indicates open-loop power boost values ​​of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0020] In one embodiment, the information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP correspond to the same open loop power control parameters.

[0021] In one embodiment, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP; The step of determining an open-loop power boost value of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP includes determining, in a PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0022] In one embodiment, the DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether one or more TRPs used by the terminal when transmitting a PUSCH toward a multi-coordinated TRP have the same interference situation, and / or information on a TRP that needs power boosting among one or more TRPs used when transmitting a PUSCH toward a multi-coordinated TRP.

[0023] In one embodiment, the step of determining an open-loop power boost value of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP comprises: In response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP are the same, applying the same open-loop power control parameters in the PUSCH power sets corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value used in the corresponding TRP when the terminal transmits a PUSCH toward a multi-coordinated TRP; In response to the second indication information indicating that one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP have different interference situations or indicating that the TRP requiring power boost is a first coordinated TRP, determining, in a PUSCH power control parameter set associated with the first OLPC power code point, an open-loop power boost value to be used in the first coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP; and determining, in a PUSCH power set associated with the first OLPC power code point according to a predefined manner, an open-loop power boost value to be used in the second coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP; The second associated TRP is one or more TRPs different from the first associated TRP among one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-associated TRP.

[0024] In one embodiment, the second indication information comprises a highest extension bit value in the information field or a lowest extension bit value in the information field.

[0025] In one embodiment, the method further comprises determining a coordinated TRP corresponding to the open loop power boost value.

[0026] In one embodiment, the coordinated TRP corresponding to the open loop power boost value is: The determination is made based on at least one of the following: based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, where the size of the SRS resource set identifier has a corresponding relationship with the direction order of the TRP; and based on a mapping relationship between the SRS resource set and the linked TRP indicated in a DCI indication field that dynamically indicates switching between a single TRP and a multi-TRP, where the direction order of the linked TRP is consistent with the mapping relationship between the SRS resource set and the linked TRP indicated in the DCI indication field.

[0027] According to a third aspect of the present disclosure, there is provided an open-loop power control device for an uplink PUSCH, the open-loop power control device for the uplink PUSCH comprising: The present invention includes: a transmitting unit configured to transmit first indication information; and a processing unit configured to set and determine open loop power control parameters of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP if an SRI indication field is not present in the first indication information, where the open loop power control parameters include corresponding open loop power boost values, wherein the first indication information indicates open loop power boost values ​​to be used when transmitting a PUSCH towards a multi-coordinated TRP, and the open loop power boost values ​​to be used when transmitting a PUSCH correspond to different coordinated TRPs that transmit the PUSCH.

[0028] In an embodiment, the processing unit is configured to: set a corresponding power control parameter set for each TRP direction of the multi-coordinated TRP indicated by the first indication information, each power control parameter set including an open-loop power control parameter for the corresponding TRP direction; and determine, in the power control parameter set corresponding to the TRP direction, an open-loop power control parameter corresponding to the TRP direction to be used by the terminal when the terminal transmits a PUSCH towards the multi-coordinated TRP.

[0029] In one embodiment, the first indication information is included in downlink control information (DCI), and the DCI includes an information field, which indicates open-loop power boost values ​​of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0030] In one embodiment, the information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP correspond to the same open loop power control parameters.

[0031] In one embodiment, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP, and the processing unit is configured to determine, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0032] In one embodiment, the DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether one or more TRPs used by the terminal when transmitting a PUSCH towards a multi-coordinated TRP have the same interference situation and / or information on a TRP that needs power boosting among one or more TRPs used when transmitting a multi-TRP coordinated PUSCH.

[0033] In one embodiment, in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP are the same, the processing unit applies the same open-loop power control parameters in the PUSCH power sets corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward a multi-coordinated TRP.

[0034] In response to the second indication information indicating that one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP have different interference conditions or indicating that the TRP requiring power boost is a first coordinated TRP, the processing unit determines, in a PUSCH power control parameter set associated with the first OLPC power code point, an open-loop power boost value to be used in the first coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP, and determines, in a predefined manner, an open-loop power boost value to be used in a second coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP, the second coordinated TRP being one or more TRPs different from the first coordinated TRP among the one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP.

[0035] In one embodiment, the second indication information comprises a highest extension bit value in the information field or a lowest extension bit value in the information field.

[0036] In one embodiment, the processing unit is further configured to determine a joint TRP corresponding to the open loop power boost value.

[0037] In one embodiment, the coordinated TRP corresponding to the open loop power boost value is: The determination is based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, and the size of the SRS resource set identifier has a corresponding relationship with the direction order of the TRP; determining based on a mapping relationship between the SRS resource set and the associated TRP indicated in a DCI indication field that dynamically indicates switching between single TRP and multi-TRP, and the direction order of the associated TRP is consistent with the mapping relationship between the SRS resource set and the associated TRP indicated in the DCI indication field.

[0038] According to a fourth aspect of the embodiment of the present disclosure, there is provided an open-loop power control device for an uplink PUSCH, the open-loop power control device for the uplink PUSCH comprising: a receiving unit configured to receive first indication information, wherein an SRI indication field is not present in the first indication information, and the first indication information indicates an open-loop power boost value to be used when transmitting a PUSCH toward a multi-coordinated TRP; and a processing unit configured to determine open-loop power boost values ​​of one or more TRPs to be used by the terminal when transmitting a PUSCH toward the multi-coordinated TRP, wherein the open-loop power boost values ​​to be used when transmitting the PUSCH correspond to different coordinated TRPs transmitting the PUSCH.

[0039] In one embodiment, a corresponding power control parameter set is configured for each TRP direction of the multi-coordinated TRP indicated by the first indication information, and each power control parameter set includes an open-loop power control parameter for the corresponding TRP direction. The processing unit is configured to determine an open-loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP, and includes determining, in the power control parameter set corresponding to the TRP direction, an open-loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0040] In one embodiment, the first indication information is included in downlink control information (DCI), and the DCI includes an information field, which indicates open-loop power boost values ​​of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0041] In one embodiment, the information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP correspond to the same open loop power control parameters.

[0042] In one embodiment, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP, and the processing unit is configured to determine an open-loop power boost value for one or more TRPs to be used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP, including determining, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used for the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0043] In one embodiment, the DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether one or more TRPs used by the terminal when transmitting a PUSCH towards a multi-coordinated TRP have the same interference situation and / or information on a TRP that needs power boosting among one or more TRPs used when transmitting a multi-TRP coordinated PUSCH.

[0044] In one embodiment, in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP are the same, the processing unit applies the same open-loop power control parameters in the PUSCH power sets corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward a multi-coordinated TRP; In response to the second indication information indicating that one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP have different interference situations or indicating that the TRP requiring power boost is a first coordinated TRP, the processing unit determines, in a PUSCH power control parameter set associated with the first OLPC power code point, an open-loop power boost value to be used in the first coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP; and determines, in a PUSCH power set associated with the first OLPC power code point, an open-loop power boost value to be used in the second coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP according to a predefined manner; The second associated TRP is one or more TRPs different from the first associated TRP among one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-associated TRP.

[0045] In one embodiment, the second indication information comprises a highest extension bit value in the information field or a lowest extension bit value in the information field.

[0046] In one embodiment, the processing unit is further configured to determine a joint TRP corresponding to the open loop power boost value.

[0047] In one embodiment, the coordinated TRP corresponding to the open loop power boost value is: The determination is made by at least one of the following methods: determining based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, wherein the size of the SRS resource set identifier corresponds to the direction order of the TRP; determining based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, wherein the size of the SRS resource set identifier corresponds to the direction order of the TRP; determining based on a mapping relationship between the SRS resource set and the linked TRP indicated in a DCI indication field that dynamically indicates switching between a single TRP and a multi-TRP, wherein the direction order of the linked TRP is consistent with the mapping relationship between the SRS resource set and the linked TRP indicated in the DCI indication field.

[0048] According to a fifth aspect of an embodiment of the present disclosure, there is provided an open-loop power control device for an uplink PUSCH, comprising: a processor and a memory for storing instructions executable by the processor; The processor is configured to perform the method for open loop power control of an uplink PUSCH according to the first aspect or any embodiment of the first aspect.

[0049] According to a sixth aspect of the embodiment of the present disclosure, there is provided an open-loop power control device for an uplink PUSCH, comprising: a processor and a memory for storing instructions executable by the processor; The processor is configured to perform the method for open loop power control of an uplink PUSCH according to any of the embodiments of the second aspect or the second aspect of the present invention.

[0050] According to a seventh aspect of an embodiment of the present disclosure, there is provided a storage medium having stored thereon instructions, which, when executed by a processor of a network device, cause the network device to perform the method for open-loop power control of an uplink PUSCH as set forth in the first aspect or any embodiment of the first aspect.

[0051] According to an eighth aspect of the embodiments of the present disclosure, there is provided a storage medium having stored thereon instructions, which, when executed by a processor of a terminal, cause the terminal to perform the method for open-loop power control of an uplink PUSCH according to the second aspect or any embodiment of the second aspect.

[0052] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: Send first indication information indicating an open-loop power boost value to be used when transmitting a PUSCH toward multiple cooperative TRPs, and if the SRI indication field is not present in the first indication information, set and determine open-loop power control parameters of one or more TRPs to be used by the terminal when transmitting a PUSCH toward the multiple cooperative TRPs. The open-loop power control parameters include corresponding open-loop power boost values, and the open-loop power boost values ​​to be used when transmitting a PUSCH correspond to different cooperative TRPs transmitting a PUSCH, so that open-loop power control is realized in the PUSCH extension based on the multi-TRPs.

[0053] It should be noted that the above general description and the following detailed description are merely exemplary and explanatory and do not limit the present disclosure. [Brief explanation of the drawings]

[0054] The drawings herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure, and together with the specification serve to explain the principles of the present disclosure. [Figure 1] 1 is a schematic diagram of a communication system according to an exemplary embodiment; [Figure 2] 4 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment; [Figure 3] 4 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment; [Figure 4] 4 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment; [Figure 5] 4 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment; [Figure 6] 4 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment; [Figure 7] FIG. 2 is a block diagram of an open-loop power control system for uplink PUSCH according to an exemplary embodiment. [Figure 8] FIG. 2 is a block diagram of an open-loop power control system for uplink PUSCH according to an exemplary embodiment. [Figure 9] 1 is a block diagram of an apparatus for open-loop power control of an uplink PUSCH according to an exemplary embodiment. [Figure 10] 1 is a block diagram of an apparatus for open-loop power control of an uplink PUSCH according to an exemplary embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0055] Illustrative embodiments will now be described in detail, examples of which are illustrated in the drawings. Where the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise stated. The embodiments described in the following illustrative examples do not represent all embodiments consistent with the present disclosure.

[0056] The open-loop power control method for uplink PUSCH provided by the embodiments of the present disclosure can be applied to the wireless communication system shown in Fig. 1. Referring to Fig. 1, the wireless communication system includes a network device and a terminal. The terminal is connected to the network device via radio resources and performs data transmission. The network device and the terminal perform data transmission based on beams. The network device and the terminal can extend PUSCH uplink transmission based on Multi-TRP.

[0057] The number of TRPs of a network device that performs data transmission with a terminal based on Multi-TRP may be one or more. In the wireless communication system shown in Figure 1, the network device performs data transmission with terminal 1 and terminal 2 based on TRP1 and TRP2, but this is merely a rough description and is not limited thereto, and it can be understood that more TRPs and terminals are possible.

[0058] Furthermore, it is understood that the wireless communication system illustrated in Figure 1 is only a schematic illustration, and the wireless communication system may further include other network devices not illustrated in Figure 1, such as a core network device, a wireless relay device, and a wireless forwarding device. The embodiments of the present disclosure do not limit the number of network devices and the number of terminals included in this wireless communication system.

[0059] Furthermore, the wireless communication system of the embodiments of the present disclosure can be understood as a network providing wireless communication functions. The wireless communication system can employ different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and carrier sense multiple access with collision avoidance (CSMA). Based on factors such as different network capacities, speed rates, and time lags, networks can be divided into 2G (English: generation) networks, 3G networks, 4G networks, or future evolution networks such as 5G networks, which may also be referred to as New Radio (NR) networks. For ease of explanation, this disclosure may refer to a wireless communication network as a network.

[0060] Furthermore, a network device according to the present disclosure may also be referred to as a radio access network device. This radio access network device may be a base station, an evolved nodeB (eNB), a femtocell, an access point (AP), a radio relay node, a radio forwarding node, a transmission point (TP), or a transmission and reception point (TRP) in a wireless fidelity (WIFI) system, or a gNB in ​​an NR system, or may be a component or part of a device constituting a base station. It should be understood that the embodiments of the present disclosure are not limited to specific technologies and specific device forms adopted by the network device. In the present disclosure, a network device provides communication coverage for a specific geographical area and can communicate with terminals located within the coverage area (cell). In addition, in the case of a vehicle-to-everything (V2X) communication system, the network device may be an in-vehicle device.

[0061] Furthermore, the terminal according to the present disclosure may also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., and is a device for providing voice and / or data communication to a user. For example, the terminal may be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals include a mobile phone, a customer premises equipment (CPE), a pocket personal computer (PPC), a handheld computer, a personal digital assistant (PDA), a laptop, a tablet PC, a wearable device, or an in-vehicle device. Furthermore, in the case of a vehicle-to-everything (V2X) communication system, the terminal device may be an in-vehicle device. It should be understood that the embodiments of the present disclosure are not limited to a specific technology adopted by the terminal or a specific device form.

[0062] In the present disclosure, open-loop power control can be performed between a network device and a terminal. R16 introduces an open-loop power control parameter set indication into a scheduling DCI to indicate a power boosting indication function for scheduling a PUSCH, and introduces a new RRC parameter P0-PUSCH-Set to indicate power control, where each SRI corresponds to one open-loop power control P0-PUSCH-Set parameter and is indicated by the open-loop power control parameter set indication field.

[0063] The network device notifies the terminal through upper layer signaling p0-PUSCH-SetList-r16 whether there is a power control parameter indication field. If the upper layer parameter p0-PUSCH-SetList-r16 is not configured, the open loop power control parameter indication field is 0 bit, that is, the open loop power control parameter indication field does not exist, and the terminal obtains P0 from P0-PUSCH-AlphaSet based on the original Rel-15 mechanism. If the upper layer parameter p0-PUSCH-SetList-r16 is configured, the open loop power control parameter indication field can be set to 1 bit or 2 bits by upper layer signaling, where: 1) If the SRI indication field is present in the DCI, the open loop power control parameter indication field is set to 1 bit. 2) If the SRI indication field is not present in the DCI, the open loop power control parameter indication field can be set to 1 bit or 2 bits based on higher layer signaling. 3) For a scenario in which the SRI indication field exists in the DCI, if the open-loop power control parameter indication field information is '0', the UE still uses the Rel-15 mechanism to obtain P0 from P0-PUSCH-AlphaSet based on the SRI indication. If the open-loop power control parameter indication field information is '1', the UE obtains P0 from the open-loop parameter set P0-PUSCH-Set for power boosting based on the SRI indication.

[0064] For scenarios where the SRI field does not exist in the DCI, the open loop power control indication field in the DCI can be set to 1 bit or 2 bits in the RAN1#99 conference, and the P0-PUSCH-Set parameter can set up to two P0 values.

[0065] In an embodiment of the present disclosure, the open-loop power control method for uplink PUSCH is applied to a scenario in which service collision occurs during communication between terminals, and power control parameters are adjusted. For example, in FIG. 1, terminal 1 performs URLLC service and eMBB service, and terminal 2 performs eMBB service. The starting point of the embodiment of the present disclosure is that when terminal 1, in which eMBB and URLLC services are configured simultaneously, collides with terminal 2, in which eMBB service is configured, terminal 1 requires three different open-loop power levels for power boosting of eMBB and URLLC, respectively: 1) baselineP0 for eMBB obtained from the P0-PUSCH-AlphaSet; 2) higherP0 for power boosting of URLLC services that do not collide with eMBB; and 3) highestP0 for URLLC PUSCH that collide with eMBB.

[0066] To more clearly explain how the terminal determines P0 based on the higher layer parameters and the DCI indication, reference may be made to Table 1. Table 1 shows how the terminal determines P0 based on the higher layer parameters and the DCI indication. [Table 1]

[0067] Related technologies transmit data between a network device and a terminal based on beamforming. R17 allows for the extension of PUSCH uplink transmission between a network device and a terminal based on multi-TRP. In a multi-TRP-based PUSCH extension scheme, a URLLC service transmitted based on multi-TRP may collide with an eMBB service in a different TRP during PUSCH transmission. That is, the collision and interference situations received by the two TRPs of a network device are different. In the current adjustment method, the scheduling PUSCH where the collision occurs corresponds to a single open-loop power boost adjustment parameter, and the terminal cannot determine which TRP's resource the collision occurred in. Therefore, the open-loop power can only be adjusted based on the same open-loop power boost parameter in two different TRP transmission directions at the same time. This causes the terminal to waste valuable transmission power, directly increasing interference to other users and resulting in reduced system performance. Therefore, the OLPC power boosting mechanism needs to be extended.

[0068] In the absence of the SRI indication field, the URLLC service needs to further solve the multi-TRP power boosting control problem to consider the control method when different TRPs receive the same or different interference from the eMBB service.

[0069] An embodiment of the present disclosure provides a method for open-loop power control of an uplink PUSCH, in which a network device transmits indication information for indicating an open-loop power boost value to be used when transmitting a PUSCH toward multiple coordinated TRPs, for example, by transmitting a DCI for scheduling or activating an open-loop power control parameter to be used when transmitting a PUSCH, hereinafter referred to as first indication information. If the SRI indication field is not present in the first indication information, the method sets or determines open-loop power control parameters of one or more TRPs to be used by the terminal when transmitting a PUSCH toward the multiple coordinated TRPs, where the open-loop power control parameters include corresponding open-loop power boost values, and the open-loop power boost values ​​to be used when transmitting the PUSCH correspond to different coordinated TRPs transmitting the PUSCH. In a PUSCH extension based on multi-TRPs, open-loop power control is realized, i.e., an extension of OLPC open-loop power control is implemented.

[0070] 2 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment, which may be performed independently or in combination with other embodiments. As shown in FIG. 2, the open-loop power control method for an uplink PUSCH includes the following steps S11 to S12.

[0071] In step S11, the first instruction information is transmitted.

[0072] Here, the first indication information indicates an open-loop power boost value to be used when transmitting a PUSCH toward a multi-linked TRP, and the open-loop power boost values ​​to be used when transmitting a PUSCH correspond to different linked TRPs that transmit the PUSCH.

[0073] In step S12, in response to the absence of an SRI indication field in the first indication information, configure and determine open loop power control parameters of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP, where the open loop power control parameters include a corresponding open loop power boost value.

[0074] In the embodiments of the present disclosure, the open-loop power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP are set and determined, the power boosting parameters used when transmitting a PUSCH correspond to different coordinated TRPs transmitting the PUSCH, and the power boosting parameters of the multi-TRPs are further extended, and the use of the open-loop power control parameters for the multi-TRPs is extended to perform power boosting, thereby realizing the extension of the power boosting mechanism of OLPC.

[0075] In one embodiment of the present disclosure, by extending the power control parameters of OLPC, a corresponding power control parameter set can be configured for each TRP direction of the multi-coordinated TRP, whereby each power control parameter set includes the open-loop power control parameters of the corresponding TRP direction, and further realizes the determination of the open-loop power boost value of one or more TRPs used when transmitting PUSCH towards the multi-coordinated TRP.

[0076] 3 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment, which may be performed independently or in combination with other embodiments. As shown in FIG. 3, the open-loop power control method for an uplink PUSCH includes the following steps S21 to S22:

[0077] In step S21, a power control parameter set corresponding to each TRP direction of the multi-coordinated TRP indicated by the first indication information is set, and each power control parameter set includes an open loop power control parameter for the corresponding TRP direction.

[0078] In step S22, in the power control parameter set corresponding to the TRP direction, an open-loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP is determined.

[0079] In another embodiment of the present disclosure, the information field indicating the open-loop power boost values ​​of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP can be extended to realize the determination of the open-loop power boost values ​​of one or more TRPs used when transmitting a PUSCH toward a multi-coordinated TRP.

[0080] In one embodiment, the first indication information is included in the DCI, and the DCI includes an information field indicating open loop power control, which indicates an open loop power boost value of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0081] In the embodiments of the present disclosure, the conventional DCI information field indicating open-loop power control can be extended to indicate that one or more TRPs used by the terminal when transmitting PUSCHs toward multiple coordinated TRPs correspond to the same open-loop power control parameters, i.e., the same power boosting value is applied to the directions of multiple TRPs that transmit PUSCHs in a coordinated manner.

[0082] In an embodiment of the present disclosure, the conventional DCI information field indicating open loop power control may be an OLPC power code point with different bits set by higher layer signaling, as shown in Table 1. If the SRI indication field is not present in the DCI, 0, 1, or 2 bits may be set. Hereinafter, for ease of explanation, the OLPC code point set by the DCI information field indicating open loop power control in the conventional DCI will be referred to as the first OLPC power code point, i.e., the DCI includes the first OLPC power code point associated with the PUSCH power control set corresponding to each TRP.

[0083] When determining OLPC power control parameters of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP, in a PUSCH power control set corresponding to each TRP associated with a first OLPC power code point, an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP may be determined.

[0084] 4 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment, which may be performed independently or in combination with other embodiments. As shown in FIG. 4, the open-loop power control method for an uplink PUSCH includes the following steps S31 to S32.

[0085] In step S31, first indication information is sent, where the first indication information includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP.

[0086] In step S32, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH towards the multi-coordinated TRP is determined.

[0087] Continuing to refer to Table 1, when the first OLPC power code point indicated by the information field in the DCI is set to 1 bit, if this 1 bit indicates '0', it can support determining an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward a multi-coordinated TRP in the P0-PUSCH-AlphaSet. When the first OLPC power code point indicated by the information field in the DCI is set to 1 bit, if this 1 bit indicates '1', it can support determining an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward a multi-coordinated TRP in the P0-PUSCH-Set. That is, when the DCI information field indicating open-loop power control is set to 1 bit, it is possible to select open-loop power boost values ​​to be used in different TRPs in the P0-PUSCH-AlphaSet and the P0-PUSCH-Set.

[0088] Continuing to refer to Table 1, when the first OLPC power code point indicated by the information field in the DCI is set to 2 bits, if these 2 bits indicate '00', it can support determining an open-loop power boost value to be used in the TRP of the UE when the UE transmits a PUSCH toward a multi-coordinated TRP in the P0-PUSCH-AlphaSet. When the first OLPC power code point indicated by the information field in the DCI is set to 2 bits, if these 2 bits indicate '01', it can support determining the first P0 in the P0-PUSCH-Set as the open-loop power boost value to be used in the TRP of the UE when the UE transmits a PUSCH toward a multi-coordinated TRP. When the first OLPC power code point indicated by the information field in the DCI is set to 2 bits, if these 2 bits indicate '10', it can support determining the first P0 in the P0-PUSCH-Set as the open-loop power boost value to be used in the TRP of the UE when the UE transmits a PUSCH toward a multi-coordinated TRP. That is, when the DCI information field indicating open-loop power control is set to 2 bits, it is possible to support configuration selection at the first P0 value among P0-PUSCH-AlphaSet / P0-PUSCH-Set / the second P0 among P0-PUSCH-AlphaSet / P0-PUSCH-Set.

[0089] In an embodiment of the present disclosure, indication information can be added to the DCI to indicate whether the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP are the same, and hereinafter this indication information is referred to as second indication information.

[0090] Here, if the second indication information indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP have the same interference situation, the multi-TRPs with the same interference situation can use the same open-loop power control parameters. For example, the above-described embodiment can be adopted: in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP is determined.

[0091] In an embodiment of the present disclosure, if the second indication information indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP have different interference situations, the second indication information may further indicate information on a TRP that needs power boosting among the one or more TRPs used when the terminal transmits a PUSCH toward the multi-coordinated TRP. Of course, the second indication information may not indicate information on a TRP that needs power boosting among the one or more TRPs used when the terminal transmits a PUSCH toward the multi-coordinated TRP, and the open-loop power boost value used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP may be determined by default.

[0092] Based on the above embodiment, the DCI carrying the first indication information according to the embodiment of the present disclosure includes a first OLPC power codepoint and second indication information, where the second indication information indicates whether the interference situations of one or more TRPs used by the terminal when transmitting a PUSCH toward a multi-coordinated TRP are the same and / or information about a TRP that needs power boosting among the one or more TRPs used when transmitting a PUSCH toward a multi-coordinated TRP.

[0093] 5 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment, which may be performed independently or in combination with other embodiments. As shown in FIG. 5, the open-loop power control method for an uplink PUSCH includes the following steps S41 to S42b:

[0094] In step S41, first instruction information is sent, and the first instruction information includes a first OLPC power code point and second instruction information.

[0095] In one embodiment, step S42a is performed in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP are the same.

[0096] In step S42a, in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP are the same, apply the same open-loop power control parameters in the PUSCH power sets corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0097] In one embodiment, step S42b is performed in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP are different.

[0098] In step S42b, in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP are different or indicating that the TRP requiring power boost is the first coordinated TRP, an open-loop power boost value to be used in the first coordinated TRP corresponding to the terminal when transmitting a PUSCH toward the multi-coordinated TRP is determined in a PUSCH power control parameter set associated with the first OLPC power code point.

[0099] According to a predefined scheme, in a PUSCH power set associated with a first OLPC power code point, an open-loop power boost value to be used in a corresponding second cooperative TRP when a terminal transmits a PUSCH towards a multi-cooperative TRP is determined.

[0100] The second associated TRP is one or more TRPs different from the first associated TRP among one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-associated TRP.

[0101] The second indication information according to the embodiment of the present disclosure may be represented by extension bits extended by the open-loop power control parameter set indication indication field. For example, if the SRI indication field is not present in the DCI, the open-loop power control parameter set indication field may be set to 0, 1, or 2 bits. After extending the open-loop power control parameter set indication field by 1 bit, an open-loop power control parameter set indication field with 0, 2, or 3 bits set may be obtained. The open-loop power control parameter set indication field with 1, 2, or 3 bits set may indicate an OLPC control parameter set associated with a PUSCH power control set corresponding to each TRP, and may indicate whether the interference situations of one or more TRPs used by the terminal when transmitting a PUSCH toward a multi-coordinated TRP are the same and / or information about a TRP that requires power boosting among one or more TRPs used when transmitting a PUSCH toward a multi-coordinated TRP.

[0102] In one embodiment, the second indication information may be the highest extension bit in the open-loop power control parameter set indication indication field or the lowest extension bit value in the open-loop power control parameter set indication indication field.

[0103] In the embodiment of the present disclosure, when the Open-loop power control parameter set indication field is set to 0 bit, it is not necessary to indicate interference information on whether the interference situation between the cooperative TRPs is the same, i.e., the second indication information does not need to be included. In one example, when the Open-loop power control parameter set indication field is set to 0 bit, P0 of each P0-PUSCH-AlphaSet set can be simultaneously selected for each TRP and used for the cooperative TRP.

[0104] In the embodiments of the present disclosure, if the open-loop power control parameter set indication field is set to 0 or 3 bits, it can indicate interference information on whether the interference situation between the coordinated TRPs is the same, that is, it can include second indication information. For example, if the highest extension bit is extended, the highest extension bit value is used to indicate the second indication information, and the other bits in the open-loop power control parameter set indication field can indicate the PUSCH power control set corresponding to each TRP in the indication manner shown in Table 1.

[0105] For example, if the open-loop power control parameter set indication field is set to 2 bits, P0 is selected from P0-PUSCH-AlphaSet and P0-PUSCH-Set and applied to the TRP indicated by the DCI (first associated TRP). Also, P0' is selected for another associated TRP (second associated TRP) in a predefined manner. For example, if TRP1 selects to apply P0 from P0-PUSCH-Set, P0 from P0-PUSCH-AlphaSet is applied to TRP2.

[0106] For example, when the Open-Loop Power Control Parameter Set Indication field is set to 3 bits, open-loop power control for a cooperative TRP can be determined by selecting a P0 from the first P0 value in the P0-PUSCH-AlphaSet or the second P0 value in the P0-PUSCH-AlphaSet or the P0-PUSCH-Set, and applying the P0 to the TRP indicated by the DCI (first cooperative TRP). For another cooperative TRP (second cooperative TRP), a P0' is selected in a predefined manner. For example, if TRP1 selects to apply power boosting P0, TRP2 is assigned P0 from the P0-PUSCH-AlphaSet.

[0107] It can be understood that the first associated TRP according to the embodiment of the present disclosure includes one or more TRPs.

[0108] In the embodiment of the present disclosure, after determining an OLPC power boost value, a cooperative TRP to which the OLPC power boost value is applicable can be determined.

[0109] Method 1: Determine the linked TRP to which the OLPC power boost value is applicable based on the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, and the size of the SRS resource set identifier corresponds to the order of the TRP direction. For example, the TRP with the smaller SRS resource set identifier is fixed as the first TRP. The determination is based on the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction.

[0110] It can be understood that determining the coordinated TRP to which the OLPC power boost value is applicable based on the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction is independent of the DCI indication field for dynamically indicating switching between a single TRP and multiple TRPs.

[0111] Method 2: Determine the associated TRP to which the OLPC power boost value is applicable based on the mapping relationship between the SRS resource set and the associated TRP indicated in the DCI indication field that dynamically indicates switching between single TRP and multi-TRP.

[0112] For example, the direction order of the associated TRPs is consistent with the mapping relationship between the SRS resource sets and the associated TRPs indicated in the DCI indication field.

[0113] The DCI indication field for dynamically instructing switching between single TRP and multi-TRP can be shown in Table 2 below. [Table 2]

[0114] Referring to Table 2, the information field defined in DCI0_1 / 0_2 indicates that PUSCH transmission supports dynamic switching between single TRP and multi-TRP, i.e., indicates whether the currently scheduled PUSCH uses single TRP transmission or multi-TRP transmission, and if it is multi-TRP transmission, also supports the TRP inversion function, i.e., supports transmission in the order of TRP1, TRP2 or TRP2, TRP1.

[0115] In the embodiments of the present disclosure, the first coordinated TRP may correspond to the first SRS resource set, and the second coordinated TRP may correspond to the second SRS resource set, or the first coordinated TRP may correspond to the second SRS resource set, and the second coordinated TRP may correspond to the first SRS resource set.

[0116] In one example, if a DCI indication field for dynamically indicating switching between single TRP and multi-TRP defined by a protocol indicates that a first TRP and a second TRP support reversal, the second TRP may correspond to the first OLPC indication parameter and the first TRP may correspond to the second OLPC indication parameter.

[0117] In an embodiment of the present disclosure, first indication information indicating an open-loop power boost value to be used when transmitting a PUSCH toward a multi-coordinated TRP is transmitted. If the first indication information does not include an SRI indication field, the terminal sets and determines open-loop power control parameters of one or more TRPs to be used by the terminal when transmitting a PUSCH toward the multi-coordinated TRP. The open-loop power control parameters include corresponding open-loop power boost values, and the open-loop power boost values ​​to be used when transmitting a PUSCH correspond to different coordinated TRPs transmitting the PUSCH. A PUSCH extension based on multi-TRP realizes open-loop power control. For example, for a PUSCH based on multi-TRP, power boost control is realized by respectively controlling OLPC for different TRPs through design extension of higher layer signaling and DCI commands, thereby resolving power control issues when conflicting with URLLC service and / or eMBB service and ensuring high reliability of URLLC service.

[0118] Based on the same concept, the embodiment of the present disclosure further provides an open-loop power control method for an uplink PUSCH applied to a terminal.

[0119] 6 is a flowchart of an open-loop power control method for an uplink PUSCH according to an exemplary embodiment, which may be performed independently or in combination with other embodiments. As shown in FIG. 6, the open-loop power control method for an uplink PUSCH includes the following steps S51 to S52.

[0120] In step S51, first instruction information is received, and the first instruction information does not have an SRI instruction field, and the first instruction information indicates an open-loop power boost value to be used when transmitting a PUSCH toward a multi-coordinated TRP.

[0121] In step S52, determine the open-loop power boost values ​​of one or more TRPs to be used by the terminal when the terminal transmits PUSCH towards the multi-coordinated TRP.

[0122] The open loop power boost value used when transmitting the PUSCH corresponds to the different coordinated TRPs transmitting the PUSCH.

[0123] In one embodiment, a corresponding power control parameter set is configured for each TRP direction of the multi-coordinated TRP indicated by the first indication information, and each power control parameter set includes an open-loop power control parameter for the corresponding TRP direction. When determining open-loop power boost values ​​of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP, the open-loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP can be determined in the power control parameter set corresponding to the TRP direction.

[0124] In one embodiment, the first indication information is included in downlink control information (DCI), and the DCI includes an information field, which indicates open-loop power boost values ​​of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0125] In one embodiment, the information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP correspond to the same open loop power control parameters.

[0126] In one embodiment, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP, and the terminal determines, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0127] In one embodiment, the DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether the interference situation of one or more TRPs used by the terminal when transmitting a PUSCH toward a multi-coordinated TRP is the same, and / or information of a TRP that needs power boosting among the one or more TRPs used when transmitting a PUSCH toward a multi-coordinated TRP.

[0128] In one embodiment, in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP are the same, the terminal applies the same open-loop power control parameters in the PUSCH power sets corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0129] In another embodiment, in response to the second indication information indicating that one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP have different interference situations or indicating that the TRP requiring power boost is the first coordinated TRP, the method determines, in a PUSCH power control parameter set associated with the first OLPC power code point, an open-loop power boost value to be used in the first coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP.The method determines, in a PUSCH power set associated with the first OLPC power code point, an open-loop power boost value to be used in the second coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP according to a predefined scheme.

[0130] The second associated TRP is one or more TRPs different from the first associated TRP among one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-associated TRP.

[0131] In one embodiment, the second indication information may be the highest extension bit in the open-loop power control parameter set indication indication field or the lowest extension bit value in the open-loop power control parameter set indication indication field.

[0132] In the embodiment of the present disclosure, after determining the terminal OLPC power boost value, the cooperative TRP to which this OLPC power boost value is applicable can be determined.

[0133] The terminal may determine the coordinated TRP corresponding to the open-loop power boost value using at least one of the following methods 1 and 2.

[0134] Method 1: Determine the linked TRP to which the OLPC power boost value is applicable based on the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, and the size of the SRS resource set identifier corresponds to the order of the TRP direction. For example, the TRP with the smaller SRS resource set identifier is fixed as the first TRP. The determination is based on the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction.

[0135] Method 2: Determine the associated TRP to which the OLPC power boost value is applicable based on the mapping relationship between the SRS resource set and the associated TRP indicated in the DCI indication field that dynamically indicates switching between a single TRP and multiple TRPs. The direction order of the associated TRP is consistent with the mapping relationship between the SRS resource set and the associated TRP indicated in the DCI indication field.

[0136] In the embodiments of the present disclosure, when a terminal transmits a PUSCH toward a multi-coordinated TRP, it can control the open-loop power control parameters of one or more TRPs used to realize the power boost control of OLPC, resolve the power control when the URLLC service and the eMBB service collide, and ensure the high reliability of the URLLC service.

[0137] It can be understood that the open-loop power control method for uplink PUSCH performed by the terminal in the embodiments of the present disclosure is similar to the open-loop power control method for uplink PUSCH performed by the network device. Therefore, for a detailed description of the open-loop power control method for uplink PUSCH performed by the terminal in the embodiments of the present disclosure, reference can be made to the open-loop power control method for uplink PUSCH performed by the network device in the above embodiments.

[0138] Furthermore, it can be understood that the open-loop power control method for uplink PUSCH provided by the embodiments of the present disclosure can also be applied to the execution process in which a terminal and a network device interact to realize open-loop power control for uplink PUSCH. During the interaction between a terminal and a network device to realize open-loop power control for uplink PUSCH, the network device and the terminal respectively have relevant functions for implementing the above embodiments, and therefore will not be described in detail herein.

[0139] Those skilled in the art will understand that the various embodiments / examples of the present disclosure described above may be used together with the aforementioned examples or may be used alone. The same principles are applied regardless of whether they are used alone or together with the aforementioned examples. Some examples of the present disclosure will be described as being used together. Of course, those skilled in the art will understand that these examples do not limit the examples of the present disclosure.

[0140] Based on the same concept, an embodiment of the present disclosure further provides an open-loop power control device for uplink PUSCH.

[0141] It should be noted that the uplink PUSCH open-loop power control device provided by the embodiments of the present disclosure includes corresponding hardware structures and / or software modules for performing each function to realize the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be realized by hardware or a combination of hardware and computer software. Whether a function is implemented by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may realize the described functions using different methods for each specific application, but such realization should not be considered beyond the scope of the technical solution of the embodiments of the present disclosure.

[0142] 7 is a block diagram of an open-loop power control device for uplink PUSCH according to an exemplary embodiment. Referring to FIG. 7, the open-loop power control device for uplink PUSCH 100 is applied to a network device and includes: a transmitting unit 101 and a processing unit 102.

[0143] The sending unit 101 is configured to send first indication information.

[0144] When the SRI indication field is not present in the first indication information, the processing unit 102 is configured to set and determine open-loop power control parameters of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP, where the open-loop power control parameters include corresponding open-loop power boost values. The first indication information indicates open-loop power boost values ​​to be used when transmitting a PUSCH toward a multi-coordinated TRP, and the open-loop power boost values ​​to be used when transmitting a PUSCH correspond to different coordinated TRPs transmitting the PUSCH.

[0145] In an embodiment, the processing unit 102 is configured to: set a corresponding power control parameter set for each TRP direction of the multi-coordinated TRP indicated by the first indication information, each power control parameter set including an open-loop power control parameter for the corresponding TRP direction; and determine, in the power control parameter set corresponding to the TRP direction, an open-loop power control parameter corresponding to the TRP direction to be used by the terminal when the terminal transmits a PUSCH towards the multi-coordinated TRP.

[0146] In one embodiment, the first indication information is included in downlink control information (DCI), and the DCI includes an information field, which indicates an open-loop power boost value of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0147] In one embodiment, the information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP correspond to the same open loop power control parameters.

[0148] In one embodiment, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP, and the processing unit 102 is configured to determine, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH towards the multi-coordinated TRP.

[0149] In one embodiment, the DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether the interference situation of one or more TRPs used by the terminal when transmitting a PUSCH toward a multi-coordinated TRP is the same, and / or information of a TRP that needs power boosting among the one or more TRPs used when transmitting a PUSCH toward a multi-coordinated TRP.

[0150] In one embodiment, in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP are the same, the processing unit 102 applies the same open-loop power control parameters in the PUSCH power sets corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0151] In response to the second indication information indicating that one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP have different interference conditions or indicating that the TRP requiring power boosting is the first coordinated TRP, the processing unit 102 determines, in a PUSCH power control parameter set associated with the first OLPC power code point, an open-loop power boost value to be used in the first coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP, and determines, in a predefined manner, an open-loop power boost value to be used in a second coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP, in a PUSCH power set associated with the first OLPC power code point. The second coordinated TRP is one or more TRPs different from the first coordinated TRP among the one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0152] In one embodiment, the second indication information includes the highest extension bit value in the information field, or the second indication information includes the lowest extension bit value in the information field.

[0153] In one embodiment, the processing unit 102 is further configured to determine a joint TRP corresponding to the open-loop power boost value.

[0154] In one embodiment, determining the joint TRP corresponding to the open loop power boost value comprises: The determination is based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, and the size of the SRS resource set identifier has a corresponding relationship with the direction order of the TRP; determining based on a mapping relationship between the SRS resource set and the associated TRP indicated in a DCI indication field that dynamically indicates switching between single TRP and multi-TRP, where the direction order of the associated TRP is consistent with the mapping relationship between the SRS resource set and the associated TRP indicated in the DCI indication field.

[0155] 8 is a block diagram of an open-loop power control device for uplink PUSCH according to an exemplary embodiment. Referring to FIG. 8, the open-loop power control device for uplink PUSCH 200 is applied to a terminal and includes: a receiving unit 201 and a processing unit 202.

[0156] The receiving unit 201 is configured to receive first indication information, where an SRI indication field is not present in the first indication information, and the first indication information indicates an open-loop power boost value to be used when transmitting a PUSCH towards a multi-coordinated TRP.

[0157] The processing unit 202 is configured to determine open-loop power boost values ​​of one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP, and the open-loop power boost values ​​used when transmitting the PUSCH correspond to different coordinated TRPs transmitting the PUSCH.

[0158] In one embodiment, a corresponding power control parameter set is set for each TRP direction of the multi-coordinated TRP indicated by the first indication information, and each power control parameter set includes an open-loop power control parameter for the corresponding TRP direction. The processing unit 202 is configured to determine open-loop power boost values ​​of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP, including determining, in the power control parameter set corresponding to the TRP direction, an open-loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0159] In one embodiment, the first indication information is included in downlink control information (DCI), and the DCI includes an information field, which indicates an open-loop power boost value of one or more TRPs to be used by the terminal when the terminal transmits a PUSCH towards a multi-coordinated TRP.

[0160] In one embodiment, the information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP correspond to the same open loop power control parameters.

[0161] In one embodiment, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP. The processing unit 202 is configured to determine an open-loop power boost value for one or more TRPs to be used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP, including determining, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, an open-loop power boost value to be used for the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0162] In one embodiment, the DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether the interference situation of one or more TRPs used by the terminal when transmitting a PUSCH toward a multi-coordinated TRP is the same, and / or information of a TRP that needs power boosting among the one or more TRPs used when transmitting a PUSCH toward a multi-coordinated TRP.

[0163] In one embodiment, in response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP are the same, the processing unit 202 applies the same open-loop power control parameters in the PUSCH power sets corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

[0164] In response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP are different or indicating that the TRP requiring power boost is the first coordinated TRP, the processing unit 202 determines, in a PUSCH power control parameter set associated with the first OLPC power code point, an open-loop power boost value to be used in the first coordinated TRP corresponding to when the terminal transmits a PUSCH toward the multi-coordinated TRP, and determines, in a predefined manner, an open-loop power boost value to be used in the second coordinated TRP corresponding to when the terminal transmits a PUSCH toward the multi-coordinated TRP, in a PUSCH power set associated with the first OLPC power code point.

[0165] The second associated TRP is one or more TRPs different from the first associated TRP among one or more TRPs used by the terminal when the terminal transmits a PUSCH toward the multi-associated TRP.

[0166] In one embodiment, the second indication information includes the highest extension bit value in the information field, or the second indication information includes the lowest extension bit value in the information field.

[0167] In one embodiment, the processing unit 202 is further configured to determine a joint TRP corresponding to the open-loop power boost value.

[0168] In one embodiment, determining the joint TRP corresponding to the open loop power boost value comprises: The method includes at least one of: determining based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, wherein the size of the SRS resource set identifier has a corresponding relationship with the direction order of the TRP; and determining based on a mapping relationship between the SRS resource set and the linked TRP indicated in a DCI indication field that dynamically indicates switching between a single TRP and a multi-TRP, wherein the direction order of the linked TRP is consistent with the mapping relationship between the SRS resource set and the linked TRP indicated in the DCI indication field.

[0169] The specific manner in which each module of the apparatus in the above embodiment performs the operations has already been described in detail in the embodiment relating to the method, so it will not be described in detail here.

[0170] 9 is a block diagram of an apparatus for open-loop power control of an uplink PUSCH according to an exemplary embodiment. For example, the apparatus 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0171] Referring to FIG. 9, the device 300 may include one or more components: a processing component 302, a memory 304, a power component 306, a multimedia component 308, an audio component 310, an input / output (I / O) interface 312, a sensor component 314, and a communication component 316.

[0172] The processing component 302 typically controls the overall operation of the device 300, such as operations related to display, phone calls, data communications, camera operation, and recording operations. The processing component 302 may include one or more processors 320 for executing instructions to complete all or some of the steps of the above-described methods. Additionally, the processing component 302 may include one or more modules to facilitate interaction with other components. For example, the processing component 302 may include a multimedia module to facilitate interaction between the multimedia component 308 and the processing component 302.

[0173] Memory 304 is configured to store various types of data to support operation on device 300. Examples of this data include instructions for any application programs or methods for operating on device 300, contact data, phone book data, messages, images, videos, etc. Memory 304 may be implemented by any type of volatile or non-volatile storage device, or combinations thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0174] The power component 306 provides power to various components of the device 300. The power component 306 may include a power management system, one or more power sources, and other components associated with the generation, management, and distribution of power for the device 300.

[0175] The multimedia component 308 includes a screen that provides an output interface between the device 300 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel may include one or more touch sensors to detect touches, slides, and gestures on the touch panel. The touch sensors may detect not only the boundaries of a touch or slide operation but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 308 includes a front camera and / or a rear camera. When the device 300 is in an operational mode, such as a photo mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or may have a focal length and optical zoom capability.

[0176] The audio component 310 is configured to output and / or input audio signals. For example, the audio component 310 includes a microphone (MIC) configured to receive external audio signals when the device 300 is in an operation mode such as a call mode, a record mode, and a voice recognition mode. The received audio signals may be further stored in the memory 304 or transmitted via the communication component 316. In some embodiments, the audio component 310 further includes a speaker for outputting audio signals.

[0177] The I / O interface 312 provides an interface between the processing component 302 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0178] The sensor component 314 includes one or more sensors to provide various aspects of the device 300 with status assessment. For example, the sensor component 314 can detect the on / off state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, and can further detect changes in the position of the device 300 or a component of the device 300, the presence or absence of user contact with the device 300, the orientation and position or acceleration / deceleration of the device 300, and temperature changes of the device 300. The sensor component 314 can also include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 314 can further include an optical sensor, such as a CMOS or CCD image sensor used for imaging applications. In some embodiments, the sensor component 314 can further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0179] The communication component 316 is configured to facilitate wired or wireless communication between the device 300 and other devices. The device 300 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 further includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0180] In an exemplary embodiment, apparatus 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described methods.

[0181] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions, such as a memory 304 containing instructions, may be provided, which may be executed by the processor 320 of the device 300 to complete the method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, or an optical data storage device.

[0182] 10 is a block diagram of an apparatus for open-loop power control of an uplink PUSCH according to an exemplary embodiment. For example, the apparatus 400 may be provided as a network device. Referring to FIG. 10, the apparatus 400 includes a processing component 422 including one or more processors and a memory resource represented by a memory 432 for storing instructions, such as an application program, executed by the processing component 422. The application program stored in the memory 432 may include one or more modules, each corresponding to a set of instructions. The processing component 422 is also configured to execute the instructions to perform the above-described method.

[0183] Device 400 may further include a power component 426 configured to perform power management for device 400, a wired or wireless network interface 450 configured to connect device 400 to a network, and an input / output (I / O) interface 458. Device 400 may operate an operating system stored in memory 432, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0184] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions, such as a memory 432 containing instructions, may be provided, which may be executed by the processing component 422 of the apparatus 400 to complete the method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, or an optical data storage device.

[0185] Furthermore, it can be understood that "plurality" in this disclosure means two or more, and other counter classifiers are similar. "And / or" describes a relation between related objects and indicates that three relations are possible. For example, a statement such as A and / or B can represent three situations: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the related objects before and after it are in an "or" relation. The singular forms "a," "the," and "the" are also intended to include the plural, unless the context clearly indicates otherwise.

[0186] Furthermore, while terms such as "first" and "second" describe various pieces of information, it should be understood that these pieces of information should not be limited to these terms. These terms are used merely to distinguish between pieces of information of the same type and do not imply a particular order or importance. In fact, terms such as "first" and "second" can be used completely interchangeably. For example, first information can be referred to as second information, and similarly, second information can be referred to as first information, without departing from the scope of this disclosure.

[0187] Additionally, although the embodiments of the present disclosure describe operations in a particular order in the figures, it will be understood that these operations may be performed in the particular order shown, or in a serial order, or that all operations may be required to achieve a desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0188] Those skilled in the art will readily appreciate other embodiments of the present disclosure after studying the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common general knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are considered to be exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0189] It should be noted that the present disclosure is not limited to the exact structure described above and shown in the drawings, and various modifications and variations can be made without departing from the scope of the present disclosure, which is limited only by the appended claims.

Claims

1. 1. An open-loop power control method for an uplink Physical Uplink Shared Channel (PUSCH), applied to a network device, the method comprising: A step of transmitting first instruction information, wherein the first instruction information indicates an open-loop power boost value to be used when transmitting a PUSCH toward a multi-coordinated TRP, and the open-loop power boost value to be used when transmitting a PUSCH corresponds to a different coordinated TRP through which the PUSCH is transmitted; In response to the absence of a sounding reference signal resource indication (SRI) indication field in the first indication information, configuring and determining open loop power control parameters of one or more multi-coordinated transmission / reception points (TRPs) used by the terminal when the terminal transmits a PUSCH toward the TRPs, wherein the open loop power control parameters include corresponding open loop power boost values; The step of setting and determining open loop power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: A step of setting a corresponding power control parameter set for each TRP direction of the multi-coordinated TRP indicated by the first indication information, wherein each power control parameter set includes an open loop power control parameter for the corresponding TRP direction; In the power control parameter set corresponding to the TRP direction, determining an open loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward the multi-coordinated TRP; the first indication information is included in downlink control information (DCI), and the DCI includes one information field; The one information field indicates an open loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP; The DCI includes a first open loop power control (OLPC) power code point associated with a PUSCH power control parameter set corresponding to each TRP; The step of determining OLPC power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: In a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point, determining an open loop power boost value to be used in the corresponding TRP when a terminal transmits a PUSCH toward a multi-joint TRP; The step of determining an open loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH for a multi-joint TRP in a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point includes: If the first OLPC power code point indicated by the one information field is set to 1 bit, If the 1 bit indicates 0, in the P0-PUSCH-AlphaSet, determine an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward the multi-coordinated TRP; If the one bit indicates 1, in the P0-PUSCH-Set, determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-joint TRP; If the first OLPC power code point indicated by the one information field is set to 2 bits, If the two bits indicate 00, in the P0-PUSCH-AlphaSet, determine an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward the multi-coordinated TRP; If the two bits indicate 01, determining the first P0 of the P0-PUSCH-Set as an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

1. A method for open-loop power control of an uplink PUSCH, comprising:

2. The one information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH for a multi-joint TRP correspond to the same open loop power control parameters; The method for open-loop power control of an uplink PUSCH according to claim 1 .

3. The DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether the interference situation of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP is the same, and / or indicates information of a TRP that needs power boosting among one or more TRPs used when the terminal transmits a PUSCH toward a multi-coordinated TRP. The method for open-loop power control of an uplink PUSCH according to claim 1 .

4. The step of determining OLPC power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: In response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH for a multi-coordinated TRP are the same, applying the same open-loop power control parameters in a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH for a multi-coordinated TRP; In response to the second indication information indicating that one or more TRPs used by the terminal when the terminal transmits a PUSCH for a multi-coordinated TRP have different interference situations or indicating that the TRP requiring power boost is a first coordinated TRP, determining an open-loop power boost value to be used in the first coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH for a multi-coordinated TRP in a PUSCH power control parameter set associated with the first OLPC power code point, and determining an open-loop power boost value to be used in the second coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH for a multi-coordinated TRP in a PUSCH power control parameter set associated with the first OLPC power code point according to a predefined manner; The second associated TRP is one or more TRPs different from the first associated TRP among one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-associated TRP; The method for open-loop power control of an uplink PUSCH according to claim 3 .

5. The second instruction information is the highest extension bit in said one information field, or including the lowest extension bit value in said one information field; The method for open-loop power control of an uplink PUSCH according to claim 3 .

6. The method comprises: determining a coordinated TRP corresponding to the open loop power boost value; The method for open-loop power control of an uplink PUSCH according to claim 1 .

7. The step of determining a coordinated TRP corresponding to the open loop power boost value includes: determining based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, wherein the size of the SRS resource set identifier has a corresponding relationship with the order of the TRP directions; determining based on a mapping relationship between the SRS resource set and the associated TRP indicated in a DCI indication field that dynamically indicates switching between the single TRP and the multi-TRP, wherein the direction order of the associated TRP is consistent with the mapping relationship between the SRS resource set and the associated TRP indicated in the DCI indication field; The method for open-loop power control of an uplink PUSCH according to claim 6 .

8. 1. An open-loop power control method for an uplink Physical Uplink Shared Channel (PUSCH), applied to a terminal, the method comprising: receiving first indication information, wherein a sounding reference signal resource indication (SRI) indication field is not present in the first indication information, and the first indication information indicates an open-loop power boost value to be used when transmitting a PUSCH toward a multi-coordinated transmitting / receiving point (TRP); Determining an open-loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP, and an open-loop power boost value used when transmitting a PUSCH corresponds to a different linked TRP on which the PUSCH is transmitted; A corresponding power control parameter set is set for each TRP direction of the multi-coordinated TRP indicated by the first indication information, and each power control parameter set includes an open loop power control parameter for the corresponding TRP direction, and the open loop power control parameter includes a corresponding open loop power boost value; The step of determining an open-loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: In a power control parameter set corresponding to a TRP direction, determining an open loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP; the first indication information is included in downlink control information (DCI), and the DCI includes one information field; The one information field indicates an open loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP; The DCI includes a first open loop power control (OLPC) power code point associated with a PUSCH power control parameter set corresponding to each TRP; The step of determining OLPC power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: In a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point, determining an open loop power boost value to be used in the corresponding TRP when a terminal transmits a PUSCH toward a multi-joint TRP; The step of determining an open loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH for a multi-joint TRP in a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point includes: If the first OLPC power code point indicated by the one information field is set to 1 bit, If the 1 bit indicates 0, in the P0-PUSCH-AlphaSet, determine an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward the multi-coordinated TRP; If the one bit indicates 1, in the P0-PUSCH-Set, determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-joint TRP; If the first OLPC power code point indicated by the one information field is set to 2 bits, If the two bits indicate 00, in the P0-PUSCH-AlphaSet, determine an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward the multi-coordinated TRP; If the two bits indicate 01, determining the first P0 of the P0-PUSCH-Set as an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

1. A method for open-loop power control of an uplink PUSCH, comprising:

9. The one information field indicates that one or more TRPs used by the terminal when the terminal transmits a PUSCH for a multi-joint TRP correspond to the same open loop power control parameters; The method for open-loop power control of an uplink PUSCH according to claim 8 .

10. The DCI includes a first OLPC power code point and second indication information, and the second indication information indicates whether the interference situation of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP is the same, and / or indicates information of a TRP that needs power boosting among one or more TRPs used when the terminal transmits a PUSCH toward a multi-coordinated TRP. The method for open-loop power control of an uplink PUSCH according to claim 8 .

11. The step of determining an open-loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: In response to the second indication information indicating that the interference situations of one or more TRPs used by the terminal when the terminal transmits a PUSCH for a multi-coordinated TRP are the same, applying the same open-loop power control parameters in a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point to determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH for a multi-coordinated TRP; In response to the second indication information indicating that one or more TRPs used by the terminal when the terminal transmits a PUSCH for a multi-coordinated TRP have different interference situations or indicating that the TRP requiring power boost is a first coordinated TRP, determining an open-loop power boost value to be used in the first coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH for a multi-coordinated TRP in a PUSCH power control parameter set associated with the first OLPC power code point, and determining an open-loop power boost value to be used in the second coordinated TRP corresponding to the terminal when the terminal transmits a PUSCH for a multi-coordinated TRP in a PUSCH power control parameter set associated with the first OLPC power code point according to a predefined manner; The second associated TRP is one or more TRPs different from the first associated TRP among one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-associated TRP; The method for open-loop power control of an uplink PUSCH according to claim 10.

12. The second instruction information is the highest extension bit in said one information field, or including the lowest extension bit value in said one information field; The method for open-loop power control of an uplink PUSCH according to claim 10.

13. The method comprises: determining a coordinated TRP corresponding to the open loop power boost value; The method for open-loop power control of an uplink PUSCH according to claim 8 .

14. The associated TRP corresponding to the open loop power boost value is: The determination is based on an SRS resource set identifier corresponding to a power control parameter set corresponding to a TRP direction, and the size of the SRS resource set identifier has a corresponding relationship with the direction order of the TRP; Determine based on a mapping relationship between the SRS resource set and the associated TRP indicated in a DCI indication field that dynamically indicates switching between the single TRP and the multi-TRP, where the direction order of the associated TRP is consistent with the mapping relationship between the SRS resource set and the associated TRP indicated in the DCI indication field; determined by at least one of The method for open-loop power control of uplink PUSCH according to claim 13.

15. An open-loop power control device for an uplink PUSCH, comprising: a transmitting unit configured to transmit a first indication; If the SRI indication field is not present in the first indication information, a processing unit configured to set and determine open loop power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-jointed TRP, wherein the open loop power control parameters include a corresponding open loop power boost value; The first indication information indicates an open-loop power boost value to be used when transmitting a PUSCH toward a multi-coordinated TRP, and the open-loop power boost value to be used when transmitting a PUSCH corresponds to a different coordinated TRP through which the PUSCH is transmitted; Setting and determining open loop power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH for a multi-joint TRP includes: Setting a corresponding power control parameter set for each TRP direction of the multi-coordinated TRP indicated by the first indication information, each power control parameter set including an open loop power control parameter for the corresponding TRP direction; In a power control parameter set corresponding to a TRP direction, determining an open-loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward a multi-coordinated TRP; the first indication information is included in downlink control information (DCI), and the DCI includes one information field; The one information field indicates an open loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP; The DCI includes a first open loop power control (OLPC) power code point associated with a PUSCH power control parameter set corresponding to each TRP; Determining OLPC power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: determining an open-loop power boost value to be used in the corresponding TRP when a terminal transmits a PUSCH for a multi-joint TRP in a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point; Determining an open loop power boost value to be used in the corresponding TRP when a UE transmits a PUSCH for a multi-joint TRP in a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point includes: If the first OLPC power code point indicated by the one information field is set to 1 bit, If the 1 bit indicates 0, in the P0-PUSCH-AlphaSet, determine an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward the multi-coordinated TRP; If the one bit indicates 1, in the P0-PUSCH-Set, determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-joint TRP; If the first OLPC power code point indicated by the one information field is set to 2 bits, If the two bits indicate 00, in the P0-PUSCH-AlphaSet, determine an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward the multi-coordinated TRP; If the two bits indicate 01, determining the first P0 of the P0-PUSCH-Set as an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

10. An open-loop power control device for an uplink PUSCH, comprising:

16. An open-loop power control device for an uplink PUSCH, comprising: A receiving unit configured to receive first indication information, wherein the first indication information does not have an SRI indication field, and the first indication information indicates an open-loop power boost value to be used when transmitting a PUSCH toward a multi-coordinated TRP; A processing unit configured to determine an open-loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH towards a multi-joint TRP, wherein the open-loop power boost value used when transmitting the PUSCH corresponds to different joint TRPs through which the PUSCH is transmitted; A corresponding power control parameter set is set for each TRP direction of the multi-coordinated TRP indicated by the first indication information, and each power control parameter set includes an open loop power control parameter for the corresponding TRP direction, and the open loop power control parameter includes a corresponding open loop power boost value; Determining an open-loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: In a power control parameter set corresponding to a TRP direction, determining an open-loop power control parameter corresponding to the TRP direction used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP; the first indication information is included in downlink control information (DCI), and the DCI includes one information field; The one information field indicates an open loop power boost value of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP; The DCI includes a first open loop power control (OLPC) power code point associated with a PUSCH power control parameter set corresponding to each TRP; Determining OLPC power control parameters of one or more TRPs used by the terminal when the terminal transmits a PUSCH toward a multi-joint TRP includes: determining an open-loop power boost value to be used in the corresponding TRP when a terminal transmits a PUSCH for a multi-joint TRP in a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point; Determining an open loop power boost value to be used in the corresponding TRP when a UE transmits a PUSCH for a multi-joint TRP in a PUSCH power control parameter set corresponding to each TRP associated with the first OLPC power code point includes: If the first OLPC power code point indicated by the one information field is set to 1 bit, If the 1 bit indicates 0, in the P0-PUSCH-AlphaSet, determine an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward the multi-coordinated TRP; If the one bit indicates 1, in the P0-PUSCH-Set, determine an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-joint TRP; If the first OLPC power code point indicated by the one information field is set to 2 bits, If the two bits indicate 00, in the P0-PUSCH-AlphaSet, determine an open-loop power boost value to be used in the corresponding TRP when the UE transmits a PUSCH toward the multi-coordinated TRP; If the two bits indicate 01, determining the first P0 of the P0-PUSCH-Set as an open-loop power boost value to be used in the corresponding TRP when the terminal transmits a PUSCH toward the multi-coordinated TRP.

10. An open-loop power control device for an uplink PUSCH, comprising:

17. An open-loop power control device for an uplink PUSCH, comprising: a processor; a memory for storing instructions executable by the processor; The processor is configured to execute the method for open-loop power control of an uplink PUSCH according to any one of claims 1 to 7.

10. An open-loop power control device for an uplink PUSCH, comprising:

18. An open-loop power control device for an uplink PUSCH, comprising: a processor; a memory for storing instructions executable by the processor; The processor is configured to execute the method for open-loop power control of an uplink PUSCH according to any one of claims 8 to 14.

10. An open-loop power control device for an uplink PUSCH, comprising:

19. A storage medium on which instructions are stored, The instructions in the storage medium, when executed by a processor of a network device, cause the network device to perform the method for open-loop power control of an uplink PUSCH according to any one of claims 1 to 7. A storage medium characterized by:

20. A storage medium on which instructions are stored, The instructions in the storage medium, when executed by a processor of a terminal, cause the terminal to perform the method for open-loop power control of an uplink PUSCH according to any one of claims 8 to 14. A storage medium characterized by:

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